CN217774458U - MAP production is with centrifuge that can automatically clean - Google Patents

Abstract

The utility model discloses a MAP production is with centrifuge of can automatically cleaning, including frame, casing, lid, rotary drum, dummy cylinder, filter bag, sealed shedding mechanism and clean mechanism, sealed shedding mechanism includes piston, dead lever, blowpit, first power push rod, and clean mechanism includes outer clean pipe, the clean pipe of inlayer, air chamber, sealed lid, seal cover, montant, second power push rod and high pressurized air source. The slag discharge pipe barrel can be sealed through the piston, so that materials are blocked, and normal centrifugal operation is guaranteed; when the centrifugal operation is finished, the driving piston moves out of the slag discharging pipe barrel, so that filter residues can be discharged from the slag discharging pipe barrel, and the discharging efficiency is improved; the cleaning mechanism can clean the filter bag, high-pressure air flow is conveyed through the outer layer cleaning pipe and the inner layer cleaning pipe, air blowing cleaning is carried out on the side face and the bottom face of the filter bag in sequence respectively, particles at the bottom of the filter bag enter the discharge opening under the action of dead weight of the air flow and the particles, the particles are discharged to the discharge chute through the discharge opening, and the particles are guided out by the discharge chute.

Description

MAP production is with centrifuge that can automatically clean

Technical Field

The utility model relates to a chemical industry equipment technical field, especially a MAP production is with but self-cleaning centrifuge.

Background

MAP, the common name of heteronitrogen bicyclic phosphate, is the key for synthesizing 1 beta-methyl carbapenem antibiotics. The MAP synthetic route mainly comprises:

s1, heat preservation reaction: 4B + other raw materials are added into a reaction kettle, heated, mixed and stirred, post-treated, washed by acid, washed by aqueous solution of inorganic salts such as potassium carbonate and the like, introduced into a phase separation kettle, kept stand for phase separation, a lower-layer water phase is discharged, and an extraction liquid of an upper-layer ethyl ester solvent is left;

s2, adding an azide reagent for reaction, performing post-treatment, performing acid washing, performing salt washing, concentrating again, heating with hot water, performing negative pressure evaporation to obtain ethyl ester, separating out needed solute solid, adding ethanol and water, pulping, centrifuging, removing impurities, and placing the solid after centrifuging into another reaction kettle;

and S3, adding methanol and acid to react, performing post-treatment, washing with saline water and disodium hydrogen phosphate, heating under negative pressure to evaporate ethyl ester, adding a reagent to precipitate solute solid, centrifuging, and drying to obtain MAP.

When using current centrifuge to carry out the centrifugal processing of MAP synthetic process, centrifuge is centrifugation at every turn after, the MAP granule can be gathered on the filter bag, need manual operation to take out the filter cloth, collect the MAP granule of centrifugation play, if the MAP granule is more, still need earlier shovel out most MAP granule with the shovel by operating personnel earlier, lighten the weight of filter bag, then take out the filter bag again, operating time is long, inefficiency, artifical work intensity of operation is big, and still damage the filter bag easily when taking out the MAP granule with the shovel, the clearance of filter bag also wastes time and energy, it is long consuming time, influence production efficiency. Therefore, there is a need to develop an automatic discharging and cleaning centrifuge to solve this problem.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a self-cleaning centrifuge for MAP production.

In order to achieve the above object, the utility model provides a MAP production is with but automatically cleaning centrifuge includes:

a frame;

the shell is arranged on the rack;

the cover body can lift relative to the machine shell and is used for covering the machine shell;

the rotary drum is positioned in the shell;

the discharging cylinder is in rotary sealing connection with the shell, the upper end of the discharging cylinder is positioned in the shell and is fixedly connected with the rotary drum, and the lower end of the discharging cylinder is positioned below the shell;

the filter bag is arranged on the inner side of the rotary drum, the top of the filter bag is arranged on the upper part of the rotary drum, and the bottom of the filter bag is arranged on the upper part of the discharge cylinder and communicated with the discharge cylinder;

the sealed discharging mechanism comprises a piston, a fixed rod, a discharging chute and a first power push rod, wherein the first power push rod is arranged on the rack, the piston is rotatably arranged at the top of the fixed rod, the discharging chute is positioned under the discharging barrel, the bottom of the fixed rod is fixedly connected with the discharging chute, the fixed rod and the discharging barrel are coaxially arranged, the first power push rod drives the discharging chute to lift, so that the piston moves into or out of the discharging barrel, and the piston is in sliding sealed connection with the discharging barrel when positioned in the discharging barrel;

the cleaning mechanism comprises an outer cleaning pipe, an air chamber, a sealing cover, a sealing sleeve, a vertical rod and a second power push rod, wherein the air chamber is installed on the cover body and is communicated with a high-pressure air source, the outer cleaning pipe is rotatably installed on the cover body, the top of the outer cleaning pipe is rotatably and hermetically connected with the air chamber, the outer cleaning pipe is provided with a working section, the axis of the working section is not coaxial with the rotation center of the outer cleaning pipe, the inner cleaning pipe is fixedly installed inside the outer cleaning pipe, the working section is provided with a plurality of side nozzles for jetting air flow to the side wall of the filtering bag, the bottom of the inner cleaning pipe is provided with a bottom nozzle for jetting air flow to the bottom of the filtering bag, the top of the inner cleaning pipe extends to the upper part of the outer cleaning pipe, the sealing sleeve is slidably and hermetically connected with the top of the inner cleaning pipe, a first opening is radially formed in the sealing sleeve, a second opening is radially formed in the top of the inner cleaning pipe, the sealing cover is fixedly connected with the sealing sleeve, the top of the sealing cover is used for sealing the top of the outer cleaning pipe, the top of the sealing sleeve is fixedly provided with the vertical rod, the vertical rod is slidably and hermetically connected with the air chamber, the second power push rod is installed above the air chamber, and the output end of the second power push rod is connected with the vertical rod; when the sealing cover seals the top of the outer layer cleaning pipe, the first opening is communicated with the second opening.

Furthermore, clean mechanism still includes first driving motor and first transmission assembly, and first driving motor installs on the lid, and first driving motor passes through first transmission assembly and outer clean pipe transmission connection.

Furthermore, the first transmission assembly is a synchronous belt transmission assembly, a gear transmission assembly or a chain transmission assembly.

Furthermore, a second driving motor is installed on the rack and is in transmission connection with the discharging barrel through a second transmission assembly.

Further, the second transmission assembly is a belt transmission assembly or a gear transmission assembly.

Furthermore, a third power push rod is installed on the rack, the output end of the third power push rod is connected with the cover body, and the third power push rod is used for driving the cover body to lift.

Furthermore, the bottom of the machine shell is provided with a liquid outlet, and a valve is installed at the liquid outlet.

Furthermore, sealed shedding mechanism still includes push pedal, guide bar and uide bushing, push pedal and blowpit and guide bar fixed connection, uide bushing and frame fixed connection, and the guide bar slidable mounting is in the uide bushing, and first power push rod output is connected with the push pedal.

Compared with the prior art, the technical scheme has the following beneficial effects:

1. the piston is arranged to seal the residue discharge pipe barrel to block materials, so that the materials are prevented from leaking out of the residue discharge pipe barrel during centrifugation, and normal operation of the centrifugation is ensured; when the centrifugal operation is finished, the piston is driven to move out of the slag discharging pipe barrel, so that filter residues can be discharged from the slag discharging pipe barrel, and the discharging efficiency is improved;

2. clean mechanism can clear up the filter bag, through outer clean pipe and the clean pipe transport high-pressure air current of inlayer, the air-blast clearance of carrying out in proper order to filter bag side and bottom surface respectively, and through rotating outer clean pipe, change the position of end spout apart from the filter bag center, the rotation of cooperation rotary drum, can make end spout can spray to the different positions of filter bag bottom, thereby it is clean to the filter bag bottom, under air current and granule dead weight effect, the granule entering discharge opening of filter bag bottom, discharge to the blowpit by the discharge opening, the blowpit is derived the granule.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a first state diagram of an embodiment of the present invention;

FIG. 3 is a second state diagram of an embodiment of the present invention;

FIG. 4 is a top view of the outer layer cleaning tube in the drum;

FIG. 5 is an enlarged view of a portion of the plenum of FIG. 1 (outer cleaning tube closed);

FIG. 6 is another state diagram of FIG. 5 (inner cleaning tube closed);

FIG. 7 is a schematic structural view of an outer layer cleaning tube and an inner layer cleaning tube;

FIG. 8 is a schematic structural view of a second drive motor and a second transmission assembly;

in the figure, 1, a frame; 2. a housing; 3. a cover body; 4. a drum; 5. a discharge cylinder; 6. a filter bag; 7. a piston; 8. fixing the rod; 9. a discharge chute; 10. a first power push rod; 11. an outer layer cleaning pipe; 12. an air chamber; 13. a sealing cover; 14. sealing sleeves; 15. a vertical rod; 16. a second power push rod; 17. a high pressure gas source; 18. a working section; 19. an inner layer cleaning tube; 20. a side spout; 21. a bottom spout; 22. a first opening; 23. a second opening; 24. a first drive motor; 25. a first transmission assembly; 26. a second drive motor; 27. a second transmission assembly; 28. a third power push rod; 29. a liquid discharge port; 30. a valve; 31. pushing the plate; 32. a guide bar; 33. and a guide sleeve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 8, in an embodiment of the present invention, a centrifuge for producing MAP capable of self-cleaning includes: the device comprises a frame 1, a machine shell 2, a cover body 3, a rotary drum 4, a discharge cylinder 5, a filter bag 6, a sealing discharge mechanism and a cleaning mechanism;

wherein, the shell 2 is arranged on the frame 1;

the cover body 3 is positioned above the casing 2, can lift relative to the casing 2 and is used for covering the casing 2; when the cover body 3 descends to the lowest position, the shell 2 is covered; when the cover body 3 rises to the highest position, the opening range of the machine shell 2 is the largest, so that the filter bag 6 can be conveniently loaded, unloaded or loaded and unloaded;

the rotary drum 4 is positioned in the shell 2; the materials are put into the rotary drum 4, when the rotary drum 4 rotates, the liquid can flow into the inner cavity of the shell 2 through the filter holes of the rotary drum 4 under the action of centrifugal force;

the discharging cylinder 5 is connected with the machine shell 2 in a rotating and sealing mode, the upper end of the discharging cylinder 5 is located in the machine shell 2 and is fixedly connected and communicated with the rotary drum 4, and the lower end of the discharging cylinder 5 is located below the machine shell 2; the rotary drum 4 can be driven to rotate by driving the discharging barrel 5 to rotate, and materials in the rotary drum 4 can be discharged by the discharging barrel 5; the discharging cylinder 5 is rotatably arranged in the inner cavity of the machine shell 2 through a bearing and supports the rotary drum 4; after the centrifugal dehydration operation is completed, the filtered solid particles can be discharged through the discharge cylinder 5;

the filter bag 6 is arranged on the inner side of the rotary drum 4, the top of the filter bag 6 is arranged on the upper part of the rotary drum 4, and the bottom of the filter bag 6 is arranged on the upper part of the discharge drum 5 and communicated with the discharge drum 5; the inner side of the top of the rotary drum 4 is provided with an upper-layer ring groove, and the top of the filter bag 6 is concentrically fixed in the upper-layer ring groove through a clamping ring with a large diameter; the top of the discharging cylinder 5 is provided with an expanding section, the inner side of the expanding section is provided with a lower layer ring groove, and the bottom of the filter bag 6 is concentrically fixed in the lower layer ring groove through a small-diameter retainer ring; the rotary drum 4 supports the filter bag 6, the filter bag 6 filters materials, and solid particles are accumulated in the filter bag 6; the shape of the filter bag 6 is matched with that of the rotary drum 4, the opening at the top of the filter bag 6 is large, so that materials can be conveniently put in, and the opening at the bottom of the filter bag 6 is matched with the discharging barrel 5, so that solid particles can be conveniently discharged while the filtering effect is ensured;

the sealed discharging mechanism comprises a piston 7, a fixed rod 8, a discharging groove 9 and a first power push rod 10, the first power push rod 10 is installed on the rack 1, the piston 7 is rotatably installed at the top of the fixed rod 8 through a bearing, the discharging groove 9 is located under the discharging cylinder 5, the bottom of the fixed rod 8 is fixedly connected with the discharging groove 9, the fixed rod 8 and the discharging cylinder 5 are coaxially arranged, the first power push rod 10 drives the discharging groove 9 to lift, the piston 7 is enabled to move into or out of the discharging cylinder 5, and the piston 7 is in sliding sealing connection with the discharging cylinder 5 when located in the discharging cylinder 5; the first power push rod 10 is an air cylinder, and can also be a hydraulic cylinder or an electric cylinder; during centrifugal operation, the piston 7 is positioned at the upper part of the discharging cylinder 5 and can block materials to avoid leakage of the materials, the piston 7 rotates along with the discharging cylinder 5 under the action of friction force, and the fixed rod 8 is connected with the piston 7 through a bearing and can be kept fixed, so that the piston 7 is supported conveniently and the position of the piston 7 is ensured to be unchanged; after the centrifugal operation is finished, when solid particles need to be removed, the first power push rod 10 drives the discharge chute 9 to ascend, so that the piston 7 enters the rotary drum 4 through an expanding section of the discharge barrel 5, the inner diameter of the expanding section is larger than the diameter of the piston 7, the piston 7 cannot be in contact with a small-diameter clamping ring at the bottom of the filter bag 6 and cannot be in contact with the filter bag 6, the piston 7 does not block the materials after moving out of the discharge barrel 5, the solid particles can be discharged from the discharge barrel 5, the ascending top of the discharge chute 9 is higher than the discharge barrel 5, the discharge barrel 5 is convenient to discharge the materials into the discharge chute 9, the discharge barrel 5 is prevented from rotating to throw the particle materials out of the outside, the inclined lower end of the discharge chute 9 is provided with a discharge port, and the particle materials can slide out from the discharge port under the self gravity of the discharge chute 9;

the cleaning mechanism comprises an outer layer cleaning pipe 11, an air chamber 12, a sealing cover 13, a sealing sleeve 14, a vertical rod 15 and a second power push rod 16, wherein the air chamber 12 is arranged on the cover body 3 and is communicated with a high-pressure air source 17, the outer layer cleaning pipe 11 is rotatably arranged on the cover body 3, the top of the outer layer cleaning pipe is rotatably and hermetically connected with the air chamber 12, a sealing ring which is hermetically matched with the outer layer cleaning pipe 11 is arranged at the bottom of the air chamber 12, the outer layer cleaning pipe 11 is provided with a working section 18, as shown in figure 7, the axis of the working section 18 is not coaxial with the rotation center of the outer layer cleaning pipe 11, an inner layer cleaning pipe 19 is fixedly arranged inside the outer layer cleaning pipe 11, a plurality of side nozzles 20 for jetting air flow to the side wall of the filter bag 6 are arranged on the working section 18, a bottom nozzle 21 for jetting air flow to the bottom of the filter bag 6 is arranged at the bottom of the inner layer cleaning pipe 19, the top of the inner-layer cleaning pipe 19 extends to the upper part of the outer-layer cleaning pipe 11, the top of the inner-layer cleaning pipe 19 is of a sealing structure, a sealing sleeve 14 is connected with the top of the inner-layer cleaning pipe 19 in a sliding and sealing mode, a first opening 22 is radially arranged on the sealing sleeve 14, a second opening 23 is radially arranged on the top of the inner-layer cleaning pipe 19, a sealing cover 13 is fixedly connected with the sealing sleeve 14, the sealing cover 13 is used for sealing the top of the outer-layer cleaning pipe 11, a vertical rod 15 is fixed on the top of the sealing sleeve 14, the vertical rod 15 is connected with the air chamber 12 in a sliding and sealing mode, a sealing ring which is matched with the outer-layer cleaning pipe 11 in a sealing mode is installed on the top of the air chamber 12, a second power push rod 16 is installed above the air chamber 12, and the output end of the second power push rod 16 is connected with the vertical rod 15; the first opening 22 communicates with the second opening 23 when the sealing cap 13 seals the top of the outer cleaning pipe 11. The second power push rod 16 is a cylinder, and can also be a hydraulic cylinder, an electric cylinder or a push-pull electromagnet; the high-pressure air source 17 is an electric air pump, and can also be an air compressor or a high-pressure fan; the high-pressure air source 17 is arranged on the cover body 3, the high-pressure air source 17 is communicated with the air chamber 12 through a pipeline, after centrifugation is completed, the side face of the filter bag 6 is cleaned, the working section 18 is closest to the side wall of the rotary drum 4, the high-pressure air source 17 is communicated with the air chamber 12, the sealing cover 13 is positioned above the outer cleaning pipe 11 at the moment and cannot seal the outer cleaning pipe 11, the first opening 22 is positioned above the second opening 23 and is not communicated with the second opening 23, gas in the air chamber 12 enters an annular cavity formed by the outer cleaning pipe 11 and the inner cleaning pipe 19, and is discharged from the side nozzle 20 at the working section 18 and is sprayed to the inner side face of the filter bag 6; meanwhile, the rotary drum 4 rotates, so that the side nozzles 20 can be sprayed to the inner side surfaces of different positions of the filter bag 6, particles are blown down, and the inner side surfaces of the filter bag 6 are cleaned; after the inner side surface of the filter bag 6 is cleaned, the second power push rod 16 drives the vertical rod 15, the sealing sleeve 14 and the sealing cover 13 to descend, the sealing cover 13 covers and seals the top of the outer layer cleaning pipe 11, the first opening 22 descends to a position communicated with the second opening 23, gas in the air chamber 12 enters the inner layer cleaning pipe 19 through the first opening 22 and the second opening 23 and is discharged through the bottom nozzle 21 to be sprayed to the bottom surface of the filter bag 6, then the outer layer cleaning pipe 11 is rotated, because the axis of the working section 18 is not coaxial with the rotation center of the outer layer cleaning pipe 11, the rotation center of the outer layer cleaning pipe 11 is approximately located at the middle point of the radius of the rotary drum 4, in the process that the outer layer cleaning pipe 11 rotates 180 degrees, the working section 18 can gradually approach the center of the rotary drum 4, along with the rotation of the rotary drum 4, the bottom nozzle 21 can spray high-pressure air flow to different positions at the bottom of the filter bag 6, so as to clean the bottom of the filter bag 6, and under the self-weight of the air flow and particles, particles at the bottom of the filter bag 6 enter the discharge cylinder 5 and are discharged to the discharge chute 9.

Further, the cleaning mechanism further comprises a first driving motor 24 and a first transmission assembly 25, the first driving motor 24 is installed on the cover body 3, and the first driving motor 24 is in transmission connection with the outer layer cleaning pipe 11 through the first transmission assembly 25. The first driving motor 24 is a stepping motor or a servo motor, the first transmission assembly 25 is a synchronous belt transmission assembly, the synchronous belt transmission assembly is composed of a driving synchronous belt wheel, a driven synchronous belt wheel and a synchronous belt, the driving synchronous belt wheel is installed on a rotating shaft of the first driving motor 24, the driven synchronous belt wheel is arranged on the outer cleaning pipe 11, and the synchronous belt is in transmission connection with the driving synchronous belt wheel and the driven synchronous belt wheel; the first transmission assembly 25 can also be a gear transmission assembly or a chain transmission assembly, so that the first driving motor 24 can drive the outer cleaning tube 11 to rotate for a preset angle, thereby cleaning different positions at the bottom of the filter bag 6.

In order to drive the rotary drum 4 to rotate for centrifugal operation, a second driving motor 26 is installed on the frame 1, and the second driving motor 26 is in transmission connection with the discharging barrel 5 through a second transmission assembly 27. The second driving motor 26 is a variable frequency motor, which can control the centrifugal rotation speed, and the second driving motor 26 drives the discharging cylinder 5 to rotate through the second transmission component 27, so as to drive the rotary drum 4 to rotate, and perform the centrifugal dehydration operation. The second transmission component 27 is a belt transmission component, the belt transmission component is composed of a driving belt pulley, a driven belt pulley and a transmission belt, the driving belt pulley is installed on a rotating shaft of the second driving motor 26, the driven belt pulley is arranged at the lower part of the discharging cylinder 5, and the transmission belt is connected with the driving belt pulley and the driven belt pulley in a tensioning manner; the second transmission assembly 27 may also be a gear transmission assembly.

In order to drive the cover body 3 to lift and thereby close or open the casing 2, a third power push rod 28 is installed on the frame 1, an output end of the third power push rod 28 is connected with the cover body 3, and the third power push rod 28 is used for driving the cover body 3 to lift and lower. The two third power push rods 28 work synchronously to drive the cover 3 to lift stably. The third power push rod 28 is selected from a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

In order to discharge the filtered liquid, a liquid discharge port 29 is formed in the bottom of the machine shell 2, a valve 30 is installed at the position of the liquid discharge port 29, the filtered liquid enters the machine shell 2, and the valve 30 is opened to discharge the liquid from the liquid discharge port 29.

For the steady lift of drive discharge chute 9, set up sealed shedding mechanism and still include push pedal 31, guide bar 32 and uide bushing 33, push pedal 31 and discharge chute 9 and guide bar 32 fixed connection, uide bushing 33 and frame 1 fixed connection, guide bar 32 slidable mounting is in uide bushing 33, and first power push rod 10 output is connected with push pedal 31. The guide rod 32 and the guide sleeve 33 play a role in guiding, and the push plate 31 plays a role in connecting the discharge chute 9, the guide rod 32 and the output end of the first power push rod 10; the first power push rod 10 drives the discharging chute 9 to lift through driving the push plate 31.

In the present embodiment, all the electrical components and the power supplies adapted to the electrical components are connected through wires, and an appropriate controller should be selected according to actual conditions to meet control requirements, specific connection and control sequences.

In the working steps of this embodiment:

s1, as shown in figure 3, a third power push rod 28 works synchronously to drive a cover body 3 to rise stably, so that the top of a machine shell 2 is opened, and after filter cloth is installed, materials are added into the machine shell;

s2, as shown in figure 2, the third power push rod 28 contracts synchronously to drive the cover body 3 to descend stably and cover the shell 2;

s3, a second driving motor 26 drives the discharging cylinder 5 to rotate at a high speed through a second transmission assembly 27, so that the rotary drum 4 is driven to rotate, centrifugal dehydration is carried out, liquid enters the inner cavity of the machine shell 2 from the filter bag 6 and the rotary drum 4, and solid particles are attached in the filter bag 6;

s4, after centrifugal dehydration is completed, the second driving motor 26 drives the discharging cylinder 5 to rotate at a low speed, the first power push rod 10 drives the discharging chute 9 and the piston 7 to ascend, as shown in figure 1, the piston 7 enters the filter bag 6, the piston 7 does not block materials after moving out of the discharging cylinder 5, solid particles are discharged from the discharging chute 5, enter the discharging chute 9 and finally slide out from a discharging port at the inclined lower end of the discharging chute 9;

s5, most particles can be automatically discharged from a discharging cylinder 5 under the action of gravity, the rest small solid particles are attached to a filter bag 6, the side face of the filter bag 6 needs to be cleaned, an outer layer cleaning pipe 11 is located at an initial position, a working section 18 is closest to the side wall of a rotary drum 4, a high-pressure air source 17 is controlled to ventilate an air chamber 12, as shown in fig. 3, the working section 18 is closest to the side wall of the rotary drum 4, as shown in fig. 6, a sealing cover 13 is located above the outer layer cleaning pipe 11, the outer layer cleaning pipe 11 is communicated with the air chamber 12, a first opening 22 is located above a second opening 23 and is not communicated with the second opening 23, an inner layer cleaning pipe 19 is separated from the air chamber 12, the high-pressure air source 17 ventilates the air chamber 12, at the moment, gas in the air chamber 12 enters an annular cavity formed by the outer layer cleaning pipe 11 and the inner layer cleaning pipe 19, is discharged from a side nozzle 20 at the working section 18 and is sprayed to the inner side face of the filter bag 6; meanwhile, the rotary drum 4 rotates, so that the side nozzles 20 can be sprayed to the inner side surfaces of different positions of the filter bag 6 to blow down particles, the inner side surfaces of the filter bag 6 are cleaned, and the solid particles attached to the inner side surfaces of the filter bag 6 fall to the bottom of the filter bag 6 or the discharge cylinder 5;

s6, after the inner side surface of the filter bag 6 is cleaned, the second power push rod 16 drives the vertical rod 15, the sealing sleeve 14 and the sealing cover 13 to descend, as shown in fig. 5, the sealing cover 13 covers and seals the top of the outer layer cleaning pipe 11, the first open hole 22 descends to a position communicated with the second open hole 23, and gas in the gas chamber 12 enters the inner layer cleaning pipe 19 through the first open hole 22 and the second open hole 23, is discharged from the bottom nozzle 21 and is sprayed to the bottom surface of the filter bag 6; start first driving motor 24, first driving motor 24 passes through first transmission assembly 25 drive outer clean pipe 11 and rotates approximate 180 degrees, as shown in fig. 4, outer clean pipe 11 rotates the in-process of 180 degrees, working section 18 can be close to rotary drum 4 center gradually, along with the rotation of rotary drum 4, end spout 21 can spray high-pressure draught to the different positions of filter bag 6 bottom, thereby clean filter bag 6 bottom, under the effect of air current and granule dead weight, the granule entering discharge opening of filter bag 6 bottom, discharge chute 9 is discharged by the discharge opening, discharge chute 9 exports the granule.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Claims (8)

1. A self-cleanable centrifuge for MAP production comprising:

a frame (1);

the shell (2) is arranged on the rack (1);

the cover body (3) can lift relative to the shell (2) and is used for covering the shell (2);

a rotary drum (4) positioned in the casing (2);

it is characterized by also comprising:

the discharging cylinder (5) is connected with the shell (2) in a rotating and sealing mode, the upper end of the discharging cylinder is located in the shell (2) and is fixedly connected with the rotary drum (4), and the lower end of the discharging cylinder is located below the shell (2);

the filter bag (6) is arranged on the inner side of the rotary drum (4), the top of the filter bag is arranged at the upper part of the rotary drum (4), and the bottom of the filter bag is arranged at the upper part of the discharge cylinder (5) and is communicated with the discharge cylinder (5);

the sealing discharging mechanism comprises a piston (7), a fixing rod (8), a discharging groove (9) and a first power push rod (10), wherein the first power push rod (10) is installed on the rack (1), the piston (7) is rotatably installed at the top of the fixing rod (8), the discharging groove (9) is located under the discharging cylinder (5), the bottom of the fixing rod (8) is fixedly connected with the discharging groove (9), the fixing rod (8) and the discharging cylinder (5) are coaxially arranged, the first power push rod (10) drives the discharging groove (9) to lift, so that the piston (7) is moved into or out of the discharging cylinder (5), and the piston (7) is in sliding sealing connection with the discharging cylinder (5) when located in the discharging cylinder (5);

cleaning mechanism, including outer clean pipe (11), air chamber (12), sealed lid (13), seal cover (14), montant (15), second power push rod (16), air chamber (12) are installed on lid (3) and are linked together with high-pressure air supply (17), outer clean pipe (11) rotate install on lid (3) and top and air chamber (12) rotate sealing connection, outer clean pipe (11) have working segment (18), the axis of working segment (18) is not coaxial with the centre of rotation of outer clean pipe (11), outer clean pipe (11) inside fixed mounting has inner clean pipe (19), be equipped with a plurality of side nozzle (20) that are used for spraying the air current to filter bag (6) lateral wall on working segment (18), inner clean pipe (19) bottom is equipped with bottom spout (21) that are used for spraying the air current bottom filter bag (6), inner clean pipe (19) top extends to outer clean pipe (11) top, seal cover (14) and inner clean pipe (19) top sliding sealing connection, radially be equipped with first trompil (22) on seal cover (14), inner clean pipe (19) top is equipped with seal cover (13) and seal cover (13) fixed trompil (13), a vertical rod (15) is fixed at the top of the sealing sleeve (14), the vertical rod (15) is connected with the air chamber (12) in a sliding and sealing manner, a second power push rod (16) is arranged above the air chamber (12), and the output end of the second power push rod (16) is connected with the vertical rod (15); the first opening (22) communicates with the second opening (23) when the sealing cap (13) seals the top of the outer cleaning pipe (11).

2. The centrifuge of claim 1, wherein the cleaning mechanism further comprises a first driving motor (24) and a first transmission assembly (25), the first driving motor (24) is mounted on the cover (3), and the first driving motor (24) is in transmission connection with the outer cleaning pipe (11) through the first transmission assembly (25).

3. The centrifuge of claim 2, wherein the first transmission assembly (25) is a synchronous belt transmission assembly, a gear transmission assembly or a chain transmission assembly.

4. The centrifuge of claim 1, wherein the frame (1) is provided with a second driving motor (26), and the second driving motor (26) is in transmission connection with the discharge cylinder (5) through a second transmission assembly (27).

5. Self-cleanable centrifuge for MAP production according to claim 4, wherein said second transmission assembly (27) is a belt transmission assembly or a gear transmission assembly.

6. The centrifuge capable of self-cleaning for MAP production according to claim 1, wherein a third power push rod (28) is installed on the frame (1), the output end of the third power push rod (28) is connected with the cover body (3), and the third power push rod (28) is used for driving the cover body (3) to lift.

7. Self-cleaning centrifuge for MAP production according to claim 1, wherein a drain (29) is provided at the bottom of the casing (2), and a valve (30) is mounted at the drain (29).

8. The centrifuge capable of self-cleaning for MAP production according to claim 1, wherein the seal discharging mechanism further comprises a push plate (31), a guide rod (32) and a guide sleeve (33), the push plate (31) is fixedly connected with the discharging chute (9) and the guide rod (32), the guide sleeve (33) is fixedly connected with the frame (1), the guide rod (32) is slidably installed in the guide sleeve (33), and the output end of the first power push rod (10) is connected with the push plate (31).

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