JP4581616B2 - Kneaded product generating unit and manufacturing method for manufacturing kneaded product of hydraulic composition - Google Patents

Description

The present invention relates to a kneaded material generating unit for generating a kneaded material such as cement slurry and a manufacturing method for manufacturing a kneaded material of a hydraulic composition .

For example, as a method of generating a kneaded material such as cement slurry using a powder raw material such as cement, the powder raw material is transported to a construction site by a dedicated vehicle, and the powder raw material is watered at the construction site. There is known a method of producing a kneaded product by kneading with a liquid raw material (for example, see Patent Document 1). In this method, a cement kneaded product generating truck equipped with a cement powder transport drum for storing the powder raw material is used as a dedicated vehicle for transporting the powder raw material to the construction site.
Japanese Patent Laid-Open No. 5-208412

  By the way, in the case of a kneaded product that hardens in a relatively short time, for example, when a cement-based powder raw material is used, the kneaded product is generated, stored, and transferred in a kneading apparatus that generates the kneaded product. It is necessary to clean the parts related to the above at the construction site immediately after the construction, and to wash away the kneaded material remaining in such places. As described above, the kneaded material and the washing water (hereinafter simply referred to as waste) washed away by washing are accommodated in a container such as a drum can and transported to a facility with a solid waste management system where they are disposed of. Is done. However, in such a case, a large number of containers for storing waste are required, and furthermore, a large number of such containers must be carried to the construction site. Necessary. In particular, when a large amount of waste is generated, and when it is necessary to visit a plurality of sites within a day, the worker must store the large amount of waste. It is necessary to go around multiple construction sites while carrying a lot of equipment. For this reason, more labor and cost are required.

Accordingly, an object of the present invention is to provide a kneading process that can easily and cost-effectively treat waste generated at a construction site where a kneaded product is manufactured using a cement-based powder raw material without greatly affecting the environment. It is providing the manufacturing method which manufactures the kneaded material of a product production | generation unit and a hydraulic composition .

  The kneaded product generating unit of the present invention includes a mixer device that kneads a powder raw material and a liquid raw material to generate a kneaded product, a separation device that separates at least a residual material of the kneaded product into a solid component and a liquid component, It is characterized by comprising.

  According to the present invention, the operator can bring the mixer device and the separation device into the same construction site and use them as a single unit. For this reason, the waste material containing the remaining material such as the remaining kneaded material and the kneaded material washed away by washing in the mixer device after use and the waste containing the washing water are separated into a solid component and a liquid component using a separation device. It is possible to easily and reliably perform the operation at the construction site. As a result, it is possible to bring back only the separated solid components and dispose of them in a facility with a solid waste management system. Furthermore, the separated liquid components are subjected to, for example, a pH value adjustment process around the construction site. It is possible to dispose directly at this construction site after making no significant impact on the environment. In this case, it is not necessary to store the waste as it is in a container such as a drum can as in the prior art, and it is sufficient to store only the solid component of the waste in the container. As a result, since the number of containers for storing waste can be reduced, it is possible to reduce the labor required for storing waste in the container, and the cost required to take this container from the construction site. . Furthermore, liquid components in the waste can be discarded at the construction site after simple treatment such as pH adjustment, so that there is no need to greatly affect the environment.

  Moreover, in this invention, it is preferable to further provide the base which mounts the said mixer apparatus and the said separation apparatus. Since the mixer device and the separation device are both mounted on the same base and constitute a single unit as a whole, the mixer device and the separation device can be easily moved. For example, when this base is loaded on a truck by a crane or the like, or when this base itself is a truck bed, it is possible to reach the desired destination by running this truck. It is possible to easily move the mixer device and the separation device.

  The present invention further includes: a powder raw material supply device that supplies the powder raw material to the mixer device; and a dust collector that collects dust containing at least the powder raw material, and the powder raw material supply. It is preferable that both the apparatus and the dust collector are mounted on the base. According to this, since the mixer device, the separation device, the powder raw material supply device, and the dust collecting device are all mounted on the same base and constitute a single unit as a whole, in particular, the mixer device is installed at the construction site. Thus, the powder raw material can be easily supplied from the powder raw material supply apparatus. At this time, the powder raw material may be scattered in the air around the site and become dust, and this dust may have a considerable influence on the environment around the site. In this regard, in the present invention, since the dust collecting device that collects dust can be used at the construction site, the operator can collect dust generated around the site when the powder raw material is supplied to the mixer device. This makes it possible to suck easily and sufficiently, thereby further mitigating the environmental impact during construction.

  In the present invention, the mixer device has a plurality of blades formed on the outer peripheral surface of the shaft member, and the shaft material rotates in a predetermined direction, whereby the powder raw material, the liquid raw material, A kneading device provided with a kneading screw for transferring the kneaded product from the base end side to the terminal end side of the shaft member while kneading the kneading member. A feed blade that feeds the kneaded material toward the terminal end, and a return blade that returns the kneaded material toward the base end side of the shaft member, and the ratio of the return blade to the plurality of blades is Preferably it is at least 50%. In this kneading screw, the number of return blades that return the kneaded material toward the base end side of the shaft member is the same as or more than the number of feed blades that send the kneaded material toward the terminal end side of the shaft member. . For this reason, a powder raw material and a liquid raw material can fully be knead | mixed, and the kneaded material discharged in the insufficient kneading | mixing state reduces. This makes it difficult for phenomena such as formation of lumps (aggregates) in the kneaded product and formation of bubbles and irregularities on the cured surface, thereby improving the properties of the kneaded product.

  Moreover, it is preferable that the said powder raw material is a hydraulic composition containing the hydraulic component containing at least 1 component among an alumina cement, a Portland cement, and a gypsum, and an admixture. The kneaded product generating unit of the present invention is particularly effective when kneading a hydraulic composition having the above-described composition content. Here, the “admixture” includes one or more components of fine aggregate, water reducing agent, thickener, setting modifier and antifoaming agent.

According to the present invention, it is possible to produce a kneaded material that can be easily and cost-effectively processed waste generated at a construction site using a cement-based powder raw material without greatly affecting the environment. The manufacturing method which manufactures the kneaded material of a unit and a hydraulic composition can be provided.

  Hereinafter, the kneaded product generating unit 1 according to the present embodiment will be described with reference to the drawings. In the following description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  Here, FIG. 1 is a diagram showing a configuration of the kneaded product generating unit according to the present embodiment, and FIG. 2 is a diagram showing a cross-sectional configuration of the mixer pump according to the present embodiment. FIG. 3 is a diagram showing the overall configuration of the mixer screw according to the present embodiment, FIG. 4 is a plan view for explaining the blades of the mixer screw according to the present embodiment, and FIG. It is sectional drawing for demonstrating the blade | wing of the mixer screw which concerns.

  As shown in FIG. 1, the kneaded product generating unit 1 includes a mixer pump (mixer device) 2, a crane 3, a flexible container 4, a powder raw material supply device 5, a liquid raw material supply device 6, a separation device 7, a dust collector 8, and an integration. A flow meter 9 and a generator 10 are mounted on a loading platform (base) 11. Here, in FIG. 1, the loading platform 11 is mounted on a transport vehicle 11a such as a large truck.

  The mixer pump 2 has a hopper 2a, a kneading device 2b, a reservoir 2c, a snake pump 2d, a transfer pipe 2e, and an operation panel 2f. A raw material and a liquid raw material such as water are kneaded to produce a kneaded product. Further, the mixer pump 2 may be one having a liquid material supply pump 6c, a liquid material adjusting valve 6d, a flow meter 6e, and the like which will be described later.

  Here, the details of the mixer pump 2 will be described with reference to FIG. The hopper 2a supplies the powder raw material supplied from the powder raw material supply device 5 to the kneading device 2b side. As shown in the figure, the hopper 2a has a wide inlet 21 formed in the upper part of the main body of the hopper 2a and an opening communicating with the adjacent kneading device 2b in the lower side wall of the main body. And the hopper screw 22 is provided substantially horizontally in the main body lower part of the hopper 2a, and is rotationally driven by the motor 23 installed in the exterior of the hopper 2a. In this case, the rotational driving force by the motor 23 is transmitted to the hopper screw 22 side via the power transmission belt 24. Here, a hydraulic or electric motor 23 is used.

  The hopper screw 22 is formed such that a spiral blade is wound around the outer peripheral surface. Here, the powder raw material charged into the charging port 21 is transferred to the kneading device 2 b by the rotational movement of the hopper screw 22.

  The kneading apparatus 2 b includes a kneading chamber 25 and a mixer screw (kneading screw) 26. The kneading chamber 25 has a cylindrical shape (hollow cylindrical shape) and is installed so that the longitudinal direction is substantially horizontal. The kneading chamber 25 is provided with an opening communicating with the lower part in the hopper 2a at one end of the two ends in the longitudinal direction, and an opening communicating with the discharge unit 28 in the vicinity of the other end. Is provided. A mixer screw 26 is installed inside the kneading chamber 25 along the longitudinal direction. Such a kneading apparatus 2b kneads the powder raw material transferred from the hopper 2a by the rotation of the mixer screw 26 together with the liquid raw material in the kneading chamber 25. Here, a water supply port 27 communicating with the transfer pipe 6b is formed at a predetermined position on the side of the hopper 2a on the side wall of the kneading chamber 25, and the liquid raw material tank 6a is connected via the transfer pipe 6b and the water supply port 27. The liquid raw material is supplied into the kneading chamber 25.

  The discharge unit 28 communicates the kneading chamber 25 and the reservoir 2c, and discharges the kneaded material kneaded in the kneading chamber 25 to the reservoir 2c. The mixer screw 26 is formed integrally with the hopper screw 22 of the hopper 2 a (or is connected and fixed), and is rotated together with the hopper screw 22 by a motor 23.

  As shown in FIG. 3, the mixer screw 26 has a shaft member 26a and a plurality of blades formed on the outer peripheral surface of the shaft member 26a. The length from the base end to the end of the shaft member 26a is about the length of the kneading chamber 25, and a plurality of blades are formed at a density of 10 or more per 1 m of the shaft length. The blade includes a plurality of return blades 26b (26 sheets in FIG. 3) for causing the kneaded material in the kneading chamber 25 to flow backward to the base end side of the shaft member 26a (the installation side of the hopper 2a), and the kneaded material. And a plurality of feed blades 26c (six in FIG. 3) for feeding to the terminal side of the shaft member 26a (the side where the discharge unit 28 is installed).

  As shown in FIG. 4, the return blade 26 b and the feed blade 26 c are configured such that the directions B1 and B2 along the joint portion (linear joint portion) between the outer peripheral surface of the shaft member 26 a and the blade are respectively shaft members. It is erected so as to incline in the opposite direction to each other by about 45 degrees with respect to the axis of 26a and cross the shaft member 26a. Thus, when the shaft member 26a rotates in the direction of the symbol R in the figure, the kneaded material is transferred to the proximal end side of the shaft member 26a by the return blade 26b and sent to the terminal end side of the shaft member 26a by the feed blade 26c. It becomes. Here, the angle θ1 formed between the axis and the direction B1 and the angle θ2 formed between the axis and the direction B2 are not limited to the above-described 45 degrees, and may be within a range of 20 degrees to 70 degrees.

  As shown in FIG. 3, the mixer screw 26 is provided with a plurality (six in FIG. 3) of scraping plate members 26d. The scraping plate member 26d is for scraping the kneaded material from the inner wall of the kneading chamber 25 by the rotation of the shaft member 26a, and includes a plurality of blades (return blades) erected on the outer peripheral surface of the shaft member 26a in parallel with each other. 26b or feed blade 26c) and is joined to each blade. Then, as shown in FIG. 5, the scraping plate members 26d are provided approximately 120 degrees apart from each other in the outer circumferential direction of the shaft member 26a when viewed from the axial direction of the shaft member 26a.

  Next, the formation position of each blade | wing which the mixer screw 26 has is demonstrated in detail. Here, the blades are formed in regions A1 to A10 from the base end to the terminal end of the shaft member 26a along the direction from the base end side to the terminal end side of the shaft member 26a (hereinafter referred to as the axial direction). I will explain them in order. First, in the region A1 located on the most proximal side, three feed blades 26c are formed at the same point on the shaft and spaced apart from each other at intervals of approximately 120 degrees in the circumferential direction.

  In the region A2 located next to the region A1 in the axial direction, two return blades 26b are formed at the same point on the shaft and spaced apart from each other at an interval of about 180 degrees in the circumferential direction. . In the region A3 located adjacent to the region A2 in the axial direction, six return blades 26b are formed on the outer peripheral surface of the shaft member 26a so as to be separated from each other in a substantially spiral shape.

  In the region A4 located next to the region A3 in the axial direction, three return blades 26b are formed at the same point on the shaft and spaced apart from each other at intervals of approximately 120 degrees in the circumferential direction. . Next to the region A4 in the axial direction, a region A5 where no blade is formed is located. Then, in the region A6 positioned next to the region A5 in the axial direction, two return blades 26b are made into a set, and are separated from each other in a substantially spiral manner on the outer peripheral surface of the shaft member 26a. Is formed. One scraping plate member 26d is joined to each of the two return blades 26b included in each set.

  In the region A7 located adjacent to the region A6 in the axial direction, the three return blades 26b are formed in the same manner as in the region A4 described above. In the region A8 positioned adjacent to the region A7 in the axial direction, six return blades 26b and three scraping plate members 26d are formed in the same manner as in the above-described region A6.

  In the area A9 located next to the area A8 in the axial direction, the three feed blades 26c are formed in the same manner as in the area A1 described above. And area | region A10 in which the blade | wing is not formed is located adjacent to area | region A9 toward an axial direction.

  In addition, it is preferable that the ratio of the return blades 26b in all the blades is 50% as a lower limit, but this lower limit is more preferably 60%, and particularly preferably 70%. The upper limit of the ratio occupied by the return blade 26b is preferably 95%, but may be 100%. Further, in the mixer screw 10, the number of blades per 1 m in the axial direction of the shaft member 10a is preferably 10 or more, more preferably 20 or more, and particularly preferably 30 or more. Here, in the mixer screw 26 shown in FIG. 3, as described above, the number of blades per 1 m in the axial direction of the shaft member 10a is 10 or more, and the total number of return blades 26b and feed blades 26c. 32, and the ratio of the return blade 26b to the entire blade is about 81%. For this reason, the ratio of the return blades 26b to all the blades is as high as 50% or more, and the number of blades per 1 m in the axial direction of the shaft member 10a is as high as 10 or more. Can be sufficiently kneaded, and the amount of kneaded material discharged from the kneading apparatus 2b through the discharge unit 28 in an insufficiently kneaded state is reduced.

  Moreover, although the rotation speed of the mixer screw 26 shall be 300 rpm or more, 400 rpm is preferable, 500 rpm or more is more preferable, Furthermore, 600 rpm or more is especially preferable. Thus, since the rotation speed of the mixer screw 26 is as high as 300 rpm or more, kneading | mixing with respect to a kneaded material is performed more fully. In addition, when the conventional mixer screw is rotated at a high speed, the discharge amount of the kneaded product also increases, and the kneaded product may be discharged in an insufficient kneaded state. Since the ratio of the return blades 26b to all the blades is as high as 50%, the discharge amount of the kneaded material can be sufficiently suppressed even when the return blades 26b are rotated at a high speed. For this reason, kneading with sufficient time can be performed while rotating the mixer screw 26 at a high speed. Here, the rotation speed of the mixer screw 26 can be set to a desired value by an operator operating an operation panel 2f described later.

  Here, returning to FIG. The reservoir 2c is for temporarily storing the kneaded material discharged from the kneading apparatus 2b via the discharge unit 28. Since the kneaded material is once stored in the reservoir 2c as described above, the kneaded material can be discharged from the reservoir 2c at a desired ratio (discharge amount) by the snake pump 2d.

  The reservoir 2c is formed with a wide opening 29 in the upper part of the main body, and a stirrer screw 30 and a transfer screw 31 are provided substantially horizontally in the lower part of the main body. Each of the stirrer screw 30 and the transfer screw 31 has a length from substantially one side to the other of two side walls facing each other in the lower part of the main body of the reservoir 2c. The stirrer screw 30 is rotationally driven by a motor 32, and the transfer screw 31 is rotationally driven by a motor 33. The rotational driving force by the motor 33 is transmitted to the transfer screw 31 side via the power transmission belt 34. Here, hydraulic or electric motors 32 and 33 are used.

  An opening communicating with the adjacent snake pump 2d is formed on the lower side wall of the reservoir 2c. Through this opening, the transfer screw 31 in the reservoir 2c and the screw (not shown) in the snake pump 2d are integrally connected (formed). For this reason, the screw in the snake pump 2 d rotates with the rotation of the transfer screw 31. Thus, the kneaded material in the reservoir 2c is discharged to the outside through the transfer pipe 2e by rotating the screw in the snake pump 2d.

  In the mixer pump 2 configured as described above, the powder raw material charged into the hopper 2 a is transferred to the kneading device 2 b by the rotation of the hopper screw 22. In the kneading apparatus 2b, the powder raw material transferred from the hopper 2a is kneaded with the liquid raw material supplied via the water supply port 27 by the rotation of the mixer screw 26, and a kneaded product having a desired property is generated. . The kneaded material generated by the kneading device 2b is discharged to the reservoir 2c through the discharge unit 28, and is temporarily stored while being stirred by the rotation of the stirrer screw 30. The stirred kneaded material is transferred to the snake pump 2d by the rotation of the transfer screw 31, and is further discharged to the outside from the snake pump 2d through the transfer pipe 2e.

  The operation panel 2f has various types for the operator to operate each rotational drive of the hopper screw 22, the mixer screw 26, the stirrer screw 30 and the transfer screw 31 installed in each of the hopper 2a, the kneading device 2b and the reservoir 2c. It has an operation lever and various operation switches.

  Here, returning to FIG. The crane 3 is installed on the loading platform 11 (or the transport vehicle 11a), and has a substantially rod-shaped crane arm 3a and a crane hook 3b attached near the tip of the crane arm 3a. A flexible container (flexible container bag) 4 is supported on the crane hook 3b in order to supply the powder raw material to the powder raw material supply device 5. A powder raw material is accommodated in the flexible container 4, and the powder raw material is discharged from an outlet 41 provided on the bottom surface of the flexible container 4. The position of the crane arm 3a and the crane hook 3b can be adjusted, and the position of the flexible container 4 is adjusted by this position adjustment. Moreover, when addition of a powder raw material is required on-site, the crane can use what was provided in the transport vehicle of powder raw materials, another vehicle, etc.

The powder raw material supply device 5 is for automatically supplying the powder raw material to the mixer pump 2, and includes a powder raw material tank 5a for storing the powder raw material, and a hopper for the powder raw material in the powder raw material tank 5a. And a screw conveyor 5b for transferring to the 2a side. The powder raw material tank 5a has a capacity capable of accommodating a powder raw material of, for example, about 1.5 m ³ . A discharge port 51 for discharging the powder raw material to the screw conveyor 5b side is formed on the bottom surface of the main body of the powder raw material tank 5a, and the upper part of the main body of the powder raw material tank 5a receives replenishment supply of the powder raw material. The opening 53 is formed.

  The replenishment supply of the powder material to the powder material supply device 5 is performed by the flexible container 4 or a jet pack car (not shown). When the powder material is replenished and supplied using the flexible container 4, the position of the crane arm 3a and the crane hook 3b is adjusted so that the discharge port 41 of the flexible container 4 comes to the position of the opening 53 of the powder material tank 5a. The position of the flexible container 4 is adjusted. Thereby, the powder raw material discharged from the discharge port 41 of the flexible container 4 can surely reach the opening 53 of the powder raw material tank 5a (that is, inside the powder raw material tank 5a).

  The screw conveyor 5b is for transferring the powder raw material in the powder raw material tank 5a to the hopper 2a side, and one end is located immediately below the discharge port 51 formed on the bottom surface of the main body of the powder raw material tank 5a. The powder raw material falling from the lever 51 can be reliably received, and a discharge port 52 for discharging the powder raw material is formed at the other end. The discharge port 52 is located near the input port 21 of the hopper 2a. In the screw conveyor 5b, the powder raw material discharged from the discharge port 51 of the powder raw material tank 5a is transferred to the discharge port 52, and is discharged from the discharge port 52 to the hopper 2a.

  The liquid raw material supply device 6 is accommodated in the liquid raw material tank 6a for accommodating the liquid raw material, the transfer pipe 6b for transferring the liquid raw material accommodated in the liquid raw material tank 6a to the kneading device 2b, and the mixer pump 2. The liquid source supply pump 6c for pumping the liquid source, the liquid source adjustment valve 6d for adjusting the supply amount of the liquid source supplied into the kneading apparatus 2b, and the flow meter 6e are provided. Here, the liquid raw material tank 6a has a capacity capable of accommodating, for example, at least about 300 liters of liquid raw material. The liquid source is adjusted by the operator operating the liquid source adjusting valve 6d while visually checking the flow meter 6e. The flow meter 6e and the liquid raw material adjusting valve 6d are disposed in the vicinity of the operation panel 2f, and are particularly preferably disposed in a place that is easy to operate and is easy to see.

  Separation device 7 separates waste material including kneaded material (including kneaded material washed away by washing of hopper 2a) and washing water remaining as a residual material after construction into a solid component and a liquid component. belongs to. The separator 7 is a centrifuge or a filter.

  Here, the centrifuge used as the separation device 7 separates waste into a solid component and a liquid component using centrifugal force. Moreover, what added the coagulant | flocculant, the sedimentation accelerator, etc. to the waste may be isolate | separated into a solid component and a liquid component using centrifugal force or gravity. In this centrifuge, waste is accommodated in a rotatable container (not shown), and the container is rotated at a high speed. By this high speed rotation, centrifugal force acts on the waste in the container, and only the liquid component is discharged out of the container, and the solid component remains in the container. And the liquid component discharged | emitted out of this container is further discharged | emitted out of a centrifuge through the filter which is not shown in figure. On the other hand, the filter used as the separation device 7 separates waste into a solid component and a liquid component by filtration. In this filter, the waste is stored in a filter bag (not shown) and filtered. And a liquid component will be discharged | emitted by the filtration process outside the filtration bag, and only a solid component will remain in this filtration bag.

  Regardless of whether a centrifuge or a filter is used, the liquid component after separation is adjusted to a substantially neutral pH value that does not greatly affect the environment. After that, it is discharged into a gutter at the construction site.

  The dust collector 8 is generated when the powder raw material is supplied to the powder raw material tank 5a by the flexible container 4 or the jet pack car, or when discharged from the discharge port 52 of the screw conveyor 5b to the hopper 2a side. This is for collecting dust from the powder raw material, and prevents the dust from scattering around. The dust collector 8 includes a dust collector body 8a that is a vacuum device, and a dust collection nozzle 8b that enables the dust collector body 8a to collect remote dust. A suction port 8c is formed at the tip of the dust collection nozzle 8b, and dust sucked through the suction port 8c is accommodated in the dust collector main body 8a. In addition, the dust collection nozzle 8b is divided into two forks, and two suction ports 8c are formed at each tip. Each of the two suction ports 8c is arranged around the inlet 21 of the hopper 2a and around the opening 53 of the powder raw material tank 5a.

  The integrating flow meter 9 is for measuring the total flow rate of the kneaded material discharged from the mixer pump 2 via the transfer pipe 2e, and the measured kneaded material is the kneaded material discharged from the transfer pipe 2e. The liquid is discharged to the outside through the transfer pipe 9a while maintaining substantially the same flow rate as the flow rate. The integrating flow meter 9 measures the total amount of kneaded material discharged from the mixer pump 2 (total flow rate) between the start of measurement and the end of measurement specified by the operator, and stores the measurement result in the internal memory. Or display on the display. If this integrated flow meter 9 is used, for example, it will be clear how much kneaded material has been used at each construction site, and management of powder raw materials and the like can be performed accurately and easily.

  The generator 10 supplies necessary power to devices such as the mixer pump 2, the powder raw material supply device 5, the separation device 7, the dust collector 8, and the integrating flow meter 9 that are driven by power. This is particularly effective when a power source cannot be secured at the construction site.

  The loading platform 11 is equipped with the above-described mixer pump 2, powder raw material supply device 5, liquid raw material tank 6 a, separation device 7, dust collector 8, integrating flow meter 9, and generator 10. As a result, the mixer pump 2, the powder raw material supply device 5, the liquid raw material tank 6 a, the separation device 7, the dust collector 8, the integrating flow meter 9, and the generator 10 can be moved simultaneously, and are moved individually. Compared to the case, the labor and cost required for movement can be reduced.

  According to the configuration of the kneaded product generating unit 1 described above, the kneaded product generating unit 1 can be easily moved to the construction site, and the kneaded product can be easily generated by the mixer pump 2 at each construction site. Yes. Furthermore, the waste generated at each construction site can be separated into a solid component and a liquid component by the separation device 7. The separated solid component can be taken back by being accommodated in a container such as a drum can, regardless of whether or not there is a waste management system at the construction site. After being treated (pH value adjustment, etc.) so as not to have a big impact on the environment, it can be discharged directly at this construction site.

  For this reason, the volume and weight of the waste to be brought back can be reduced by the volume and weight of the liquid component discharged at the construction site, compared to the case where the waste has to be taken home as it is in the past. It becomes. And since the number of containers for accommodating the solid components after separation is small, transportation at the time of take-out becomes easy, and labor and cost required for this transportation are reduced. Along with this, it is possible to sufficiently cope with a case where a plurality of construction sites are visited in one day. In addition, the separated solid components are brought back and discarded in a facility with a solid waste management system, and the separated liquid components are discharged directly at the construction site after adjusting the pH value, greatly affecting the surrounding environment. You do n’t have to.

  The present invention is not limited to the configuration and operation of the kneaded product generating unit 1 described above, and the detailed configuration and detailed operation can be changed without departing from the content of the present invention. For example, the crane for supporting the flexible container 4 is not limited to the crane 3 provided in the loading platform 11, but may be a crane provided in a vehicle other than the loading platform 11, a fixed installation type crane, or the like. Good.

  Further, the kneaded product generating unit 1 may include only the mixer pump 2 and the separation device 7. In the case of such a configuration, the mixer pump 2 and the separation device 7 can be easily mounted as a single unit, for example, not only on a truck bed but also on various moving means such as a ship, an aircraft, or a train. Become. Even with such a configuration, the kneaded product generating unit 1 can be easily moved to the construction site, and the waste can be separated into a solid component and a liquid component by the separation device 7 at the construction site. Thus, the separated solid component and liquid component can be disposed of in such a manner as not to greatly affect the surrounding environment as described above. Further, the kneaded product generating unit 1 may further include a powder raw material supply device 5 and a dust collecting device 8 in addition to the mixer pump 2 and the separation device 7. As described above, the separation device 7, the powder raw material supply device 5 and the dust collecting device 8 can be easily mounted on various moving means. Even in this case, the waste can be separated into a solid component and a liquid component by the separation device 7 at the construction site, and the solid component and the liquid component after separation have a great influence on the surrounding environment as described above. It can be discarded in such a way that it does not reach. Furthermore, since the dust from the powder raw material generated at the construction site can be sufficiently collected by the dust collector 8, the influence on the surrounding environment is further reduced.

  Moreover, the kneaded material produced | generated in the kneaded material production | generation unit 1 may be a thing obtained by using the self-leveling material which consists of hydraulic components, such as an alumina cement, a Portland cement, and a gypsum, as a powder raw material. In particular, when a cement-based powder raw material that is fast-curing is used, the kneaded material hardens early, and thus the mixer pump 2 must be cleaned immediately after construction at the construction site. For this reason, since the waste containing the kneaded material or the washing water washed away by the cleaning is generated at the construction site, the kneaded material generating unit 1 according to the present embodiment is a cement-based powder raw material having such a fast curing, For example, it becomes particularly effective when a self-leveling material containing alumina cement, Portland cement, gypsum, or the like is used. In addition, since the self-leveling material is frequently used for detached construction properties and the like, there are many cases where there are many construction sites that circulate in one day, and also in this respect, the kneaded product generating unit 1 according to the present embodiment. Is particularly effective when a self-leveling material is used.

  Further, the kneaded product generated in the kneaded product generating unit 1 may be obtained from a cement-based powder material, or may be obtained from a non-cemented powder material such as a gypsum-based material. Good.

It is a figure which shows the structure of the kneaded material production | generation unit which concerns on this embodiment. It is a figure which shows the cross-sectional structure of the mixer pump which concerns on this embodiment. It is a figure showing the whole mixer screw composition concerning this embodiment. It is a top view for demonstrating the blade | wing of the mixer screw which concerns on this embodiment. It is sectional drawing for demonstrating the blade | wing of the mixer screw which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Kneaded material production | generation unit, 2 ... Mixer pump, 2a ... Hopper, 2b ... Kneading apparatus, 2c ... Reservoir, 2d ... Snake pump, 2e ... Transfer pipe, 2f ... Control panel, 21 ... Input port, 22 ... Hopper screw, 23 , 32, 33 ... motor, 24, 34 ... power transmission belt, 25 ... kneading chamber, 26 ... mixer screw, 27 ... water supply port, 28 ... discharge part, 29 ... expansion part, 30 ... stirrer screw, 31 ... transfer screw 3 ... crane, 3a ... crane arm, 3b ... crane hook, 4 ... flexible container, 41, 51, 52 ... discharge port, 5 ... powder raw material supply device, 5a ... powder raw material tank, 5b ... screw conveyor, 6 ... Liquid raw material supply device, 6a ... Liquid raw material tank, 6b ... Transfer pipe, 6c ... Liquid raw material supply pump, 6d ... Liquid raw material adjustment valve, 6e ... Flow meter DESCRIPTION OF SYMBOLS 7 ... Separator, 8 ... Dust collector, 8a ... Dust collector main body, 8b ... Dust collector nozzle, 8c ... Suction port, 9 ... Integration flow meter, 9a ... Transfer pipe, 10 ... Generator, 11 ... Loading platform, 11a ... Transport Vehicle, 53 ... opening.

Claims (5)

A plurality of blades are formed on the outer peripheral surface of the shaft member, and the shaft member rotates in a predetermined direction so that the powder material and the liquid material are kneaded while terminating from the base end side of the shaft member. A kneading apparatus provided with a kneading screw for transferring the kneaded material toward the side,
A hopper having a hopper screw for transferring the powder raw material to the kneading device;
A powder raw material supply device for supplying a powder raw material to the hopper;
A liquid raw material supply device for supplying liquid raw material to the kneading device;
A reservoir for storing the kneaded material discharged from the kneading device;
A snake pump for discharging the kneaded material in the reservoir to the outside;
A separation device for separating the remaining material of the kneaded product into a solid component and a liquid component;
With
The kneading device, the hopper, the powder raw material supply device, the liquid raw material supply device, the reservoir, the snake pump and the separation device are a base loaded on a truck or a base made of a truck bed, Mounted on
Can manufacture the kneaded material at the construction site and process the remaining material of the kneaded material at the construction site.
A kneaded product generating unit characterized by the above . The kneaded product generating unit according to claim 1, further comprising a dust collecting device for collecting dust containing the powder raw material. 3. The kneaded product generating unit according to claim 1, further comprising an integrated flow meter for measuring a total flow rate of the kneaded product discharged from the reservoir to the outside. The kneading screw includes a plurality of feed blades in which the plurality of blades send the kneaded material toward the terminal end side of the shaft member, and a plurality of returns that return the kneaded material toward the base end side of the shaft member. The kneaded product generating unit according to any one of claims 1 to 3, wherein a ratio of the return blade to the plurality of blades is at least 50%. At the construction site, using the kneaded product generating unit according to any one of claims 1 to 4, a hydraulic component containing at least one component of alumina cement, Portland cement and gypsum, an admixture, The manufacturing method of manufacturing the kneaded material of the hydraulic composition characterized by manufacturing the kneaded material of the hydraulic composition containing this, and discharging this kneaded material to the exterior from a transfer pipe.

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