CN116870609A - A disc filter dust collector and dust removal equipment - Google Patents

Abstract

The application discloses a disc type filter dust remover and dust removing equipment, wherein the disc type filter dust remover comprises a plurality of disc type filter boxes, a rotating shaft, an ash removing device and an outlet channel; the rotary shafts are sequentially inserted into middle mounting holes of the disc type filter boxes, and the rotary shafts can rotate relative to the disc type filter boxes; the disc type filter box comprises a frame and a metal filter screen, wherein the metal filter screen is arranged on the periphery of the frame; the outlet channel is arranged at the outlet side of the disc type filter box and is communicated with the inner cavity of the disc type filter box; the ash removal device is fixedly arranged on the rotating shaft and comprises a plurality of blowing pipes, and the blowing pipes are respectively arranged between two adjacent disc type filter boxes. By the aid of the scheme, influences of process fluctuation and secondary combustion can be avoided, and ash removal effect and ash removal efficiency are effectively improved.

Description

A disc filter dust collector and dust removal equipment

Technical field

The invention relates to the technical field of dust removal, and in particular to a disc filter dust collector and dust removal equipment.

Background technique

At present, as the most efficient smoke and dust control equipment, bag dust collector has the advantages of long-term stable emission, simple process flow, and low operating cost. Therefore, it is widely used in electric power, cement, metallurgy, chemical and other industries.

For sintering machine heads in steel plants in the metallurgical industry, the head dust collector, as a process dust removal equipment, needs to start and stop simultaneously with the sintering machine, which has extremely high requirements for its reliability. The temperature, humidity, and oxygen content of the flue gas at the sintering machine head change over a wide range, and the flue gas contains complex dust components such as alkaline oxides, SO ₂ , NO _X , unburned particles, and organic volatiles. , making the bag dust collector unable to be effectively used in the sintering machine head. Existing dust collectors for sintering machine heads are generally equipped with electrostatic precipitators to meet the above process dust removal equipment requirements. However, it is always difficult to collect PM2.5 particles in flue gas dust. Therefore, the sintering machine head dust removal process cannot Meet ultra-low emission requirements.

In view of this, it is urgent to optimize the design of the dust collector to adapt to the process conditions of different application scenarios and effectively improve the dust cleaning effect and dust removal efficiency.

Contents of the invention

In order to solve the above technical problems, the present invention provides a disc filter dust collector and dust removal equipment, which can avoid the influence of process fluctuations and secondary combustion, and effectively improve the dust cleaning effect and dust cleaning efficiency.

The disc filter dust collector provided by the present invention includes a plurality of disc filter boxes, a rotating shaft, a dust cleaning device and an outlet channel; wherein, the multiple disc filter boxes are arranged at intervals in sequence, and the rotating shafts are inserted in each The disc filter box is installed in the middle mounting hole, and the rotating shaft can rotate relative to the disc filter box; the disc filter box includes a frame and a metal filter screen, and the metal filter screen is arranged on the frame The outer circumference of the disc filter box; the outlet channel is arranged on the outlet side of the disc filter box and communicates with the inner cavity of the disc filter box; the dust cleaning device is fixedly arranged on the rotating shaft, and the dust cleaning device It includes a plurality of blowing pipes, and the plurality of blowing pipes are respectively arranged between two adjacent disc filter boxes.

Optionally, the metal filter screen is formed by stacking multiple layers of filter screens; along the direction of smoke passage, the mesh number of the filter screen located on the inside of each layer of the filter screen is greater than the mesh number of the filter screen located on the outside.

Optionally, the metal filter screen is made of stainless steel wire, Hastelloy or iron-chromium-aluminum alloy.

Optionally, the metal filter screen is fixed on the frame through a seam welding process.

Optionally, the disc filter box is disc-shaped.

Optionally, the frame includes an inner ring frame body, an outer ring frame body and reinforcing ribs, and the reinforcing ribs are connected between the inner ring frame body and the outer ring frame body.

Optionally, in the axial projection plane of the rotating shaft, the plurality of blow pipes are staggered along the outer circumference of the rotating shaft.

Optionally, one side end of the rotating shaft has an insertion hole arranged along the axial direction, and the side wall of the insertion hole is provided with a plurality of through holes; the plurality of through holes are arranged along the axial direction of the rotating shaft. They are arranged at intervals in sequence and staggered along the outer circumference of the rotating shaft; the dust cleaning device also includes a plurality of communication pipes, the communication pipes are arranged in one-to-one correspondence with the blowing pipes and are connected respectively, and the plurality of communication pipes are The access nozzle is connected to a plurality of through holes on the rotating shaft respectively; an external pipe is installed in the insertion hole, and the external pipe can be connected to at least one of the plurality of through holes.

Optionally, the external pipe can slide axially relative to the insertion hole, and an annular groove is provided on the outer peripheral surface of the insertion end of the external pipe; the annular groove is connected with the inner cavity of the external pipe, And the external connecting pipe can communicate with at least one of the plurality of through holes through the annular groove; seals are respectively provided on both axial sides of the annular groove, and the seals are pressed against the between the insertion end of the external nozzle and the hole wall of the insertion hole.

Optionally, a plurality of blowing ports are arranged at intervals along the extension direction of the blowing pipe, and some of the blowing ports among the plurality of blowing ports are arranged toward one of the two adjacent disc filter boxes, Another part of the blowing ports is arranged toward the other of the two adjacent disc filter boxes.

Optionally, the outlet channel is arranged in one-to-one correspondence with the disc filter boxes, or the outlet channel is arranged in correspondence with at least two disc filter boxes.

The invention also provides a dust removal equipment, including a cover body, the cover body has a flue gas inlet and a flue gas outlet, and a dust collector is provided in the cover body; the dust collector includes a disk filter dust collector as mentioned above .

Optionally, there are multiple disc filter dust collectors, and the plurality of disc filter dust collectors are arranged at intervals; the outlet channels of each disc filter dust collector extend toward the side where the flue gas outlet is located. set up.

Optionally, the dust collector further includes an electrostatic precipitator. Along the flue gas flow path in the cover, the electrostatic precipitator is arranged in the dust removal area on the upstream side, and the disc filter dust collector is arranged on the downstream side. dust removal area.

For the filter dust collector, this solution changes the form, material and dust cleaning method of the filter bag. Specifically, multiple disc filter boxes are arranged at intervals. The disc filter box includes a frame and a metal filter. The metal filter is set on the frame. On the outer periphery, a box-type filter structure is formed; the dust cleaning device is fixedly installed on the rotating shaft and can rotate driven by the rotating shaft. The dust cleaning device includes multiple blowing pipes, and the multiple blowing pipes are respectively arranged on two adjacent Between the disc filter boxes, as a result, as the rotating shaft rotates, the corresponding blow pipe rotates synchronously, which can achieve a comprehensive purge of the filter surface of the two disc filter boxes to ensure that the metal filter surface of the disc filter box The dust can be sprayed in the entire width by the rotating blow pipe. On the whole, it can not only filter out fine and sticky flocculent high specific resistance dust, but also effectively avoid the adverse effects caused by fluctuations in the sintering process and secondary combustion within the electric field, etc., ensuring the long-term low-resistance, reliable and efficient operation of the dust collector. , has better dust removal effect and dust removal efficiency.

In addition, because the metal filter is a metal product, it can adapt to the complex flue gas characteristics of the sintering machine head and other working conditions. It has the advantages of more flexible layout, larger filtration area, less resistance, and stable operation. Overall, it can filter Removing fine, sticky and flocculent high specific resistance dust can effectively avoid adverse effects caused by fluctuations in the sintering process and secondary combustion within the electric field. In addition, the metal filter screen is completely recyclable. Compared with the problem of difficult disposal of used cloth bags, it provides technical support for the gradual replacement of cloth bags in the direction of no recycling pollution.

In an optional solution of the present invention, the metal filter screen is formed by superimposing multiple layers of filter screens; along the direction of smoke passage, the mesh number of the filter screen located on the inside of each layer of filter screen is greater than the mesh number of the filter screen located on the outside. . With this setting, on the basis of satisfying the dust removal effect, the flow resistance of the flue gas can be reasonably controlled to further improve the dust removal efficiency.

In another alternative of the present invention, in the axial projection plane of the rotating shaft, a plurality of blow pipes are staggeredly arranged along the outer circumference of the rotating shaft. In this way, eccentric load can be avoided and better dynamic balance can be achieved during the rotation of the rotating shaft.

In another alternative of the present invention, one end of the rotating shaft has an insertion hole arranged along the axial direction, and a plurality of through holes are provided on the side wall of the insertion hole; at the same time, an insertion hole is provided in the insertion hole. The external connecting pipe can be connected with at least one of the plurality of through holes to establish the connection between the air source side and the blowing pipe through the corresponding connecting pipe. Such arrangement can realize the partitioned blowing of the disc filter box. Sweep, effectively control the purging energy consumption.

In yet another alternative of the present invention, the electrostatic precipitator can be used in combination with the aforementioned disc filter dust collector. Specifically, along the flue gas flow path in the cover body, the electrostatic precipitator is arranged in the dust removal area located on the upstream side. The disc filter dust collector is located in the dust removal area on the downstream side. With this arrangement, after passing through the electrostatic precipitator, the flocculent particles produced after the charged dust layer condenses and coalesce, forming a dust cake with good air permeability on the surface of the metal filter. At the same time, the dust cleaning device uses high-pressure gas to clean the metal filter. Blow the surface to make the disc filter surface cleaner.

Description of the drawings

Figure 1 is a front view of a dust removal equipment provided by an embodiment of the present application;

Figure 2 is a schematic diagram of the overall structure of a disc filter dust collector provided by an embodiment of the present application;

Figure 3 is an exploded assembly view of the disc filter dust collector shown in Figure 2;

Figure 4 is a top view of the disc filter dust collector shown in Figure 2;

Figure 5 is a front view of a disc filter box provided by an embodiment of the present application;

Figure 6 is a cross-sectional view along line A-A in Figure 5;

Figure 7 is an enlarged schematic diagram of part B in Figure 6;

Figure 8 is an enlarged schematic diagram of part I in Figure 4;

Figure 9 is a front view of another dust removal equipment provided by the embodiment of the present application;

Figure 10 is a front view of another dust removal equipment provided by the embodiment of the present application;

Figure 11 is a front view of another dust removal equipment provided by the embodiment of the present application;

Figure 12 is a front view of another dust removal equipment provided by the embodiment of the present application.

In the picture:

Dust removal equipment 100, dust removal equipment 100a, dust removal equipment 100b, dust removal equipment 100c, dust removal equipment 100d, disc filter dust collector 10, cover body 20, cover body 20a, cover body 20b, cover body 20c, cover body 20d, flue gas inlet 201, flue gas outlet 202, flue gas outlet 202d, ash hopper 203;

Disc filter box 1, frame 11, inner ring frame body 111, outer ring frame body 112, reinforcing ribs 113, first reinforcing ribs 1131, second reinforcing ribs 1132, metal filter screen 12, wrapping 121, mounting holes 13, Rotating shaft 2, insertion hole 21, through hole 22, dust cleaning device 3, blow pipe 31, blow port 311, connecting pipe 32, outlet channel 4, external connecting tube 5, annular groove 51, seal 6.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figure 1, which is a front view of a dust removal device described in the specific embodiment.

The dust removal equipment 100 includes a cover body 20 and a disk filter dust collector 10 disposed in the cover body 20 . One side of the cover body 20 has a smoke inlet 201, and the other side of the cover body 20 has a smoke outlet 202, and an ash hopper 203 for collecting dust can be provided at the bottom. After the flue gas to be treated enters the cover body 20 from the flue gas inlet 201, it undergoes dust removal processing through the disk filter dust collector 10, and the purified flue gas is discharged through the flue gas outlet 202.

As shown in Figure 1, the dust removal device includes three disc filter dust collectors 10, and the three are arranged in the cover body 20 in sequence. Please refer to FIGS. 2 and 3 , wherein FIG. 2 is a schematic diagram of the overall structure of the disc filter dust collector according to the specific embodiment, and FIG. 3 is an assembly exploded view of the disc filter dust collector shown in FIG. 2 .

The disc filter dust collector 10 includes multiple disc filter boxes 1 , a rotating shaft 2 , a dust cleaning device 3 and an outlet channel 4 . Without loss of generality, the figure takes seven disc filter boxes 1 arranged at intervals as an example to illustrate the relative positional relationship between each disc filter box. In other specific implementations, the number of disc filter boxes 1 can be configured according to The overall product design is determined. Here, the spacing between the disc filter boxes 1 may be the same or different.

In this embodiment, the disc filter box 1 includes a frame 11 and a metal filter screen 12. The metal filter screen 12 is arranged on the outer periphery of the frame 11 to form a box-type filter screen filtration structure. Please refer to Figures 5 and 6 together. Figure 5 is a front view of the disc filter box 1 according to this embodiment, and Figure 6 is a cross-sectional view along line A-A in Figure 5 .

As shown in the figure, the disc filter box 1 is in the shape of a disc as a whole, and its frame 11 is a disc-shaped frame, and a metal filter screen 12 is covered and fixed on the disc-shaped frame. In other specific implementations, the disc filter box 1 is not limited to the disk shape shown in the figure, and can also adopt other structural forms, such as but not limited to rectangular, oval or other irregularly shaped disc filter boxes 1 . In comparison, the disc filter box structure has better processing technology.

In order to further improve the overall strength, reinforcing ribs 113 are provided between the inner frame body 111 and the outer frame body 112 of the frame 11 . As shown in the figure, the reinforcing ribs 113 include a plurality of first reinforcing ribs 1131 arranged in a radial manner, and the first reinforcing ribs 1131 are in the shape of strips. Furthermore, a second reinforcing rib 1132 connected between the first reinforcing ribs 1131 may also be included, and the second reinforcing rib 1132 is circular. In other specific implementations, the number and specific form of the reinforcing ribs 113 can be determined as needed. For example, but not limited to, the inner ring frame body 111 , the outer ring frame body 112 and the second reinforcing ribs 1132 can be bent from C-shaped steel. Ring shape. The embodiments of this application are not limiting.

In a specific implementation, the metal filter screen 12 can be a filter screen with a thickness of 1 μm to 10 μm, and multiple layers of filter screens can be selected to be superimposed to form the metal filter screen 12. Specifically, the metal filter screen 12 can be formed with different mesh numbers from coarse to fine along the direction of smoke passing. Gradient combination, along the direction of flue gas passage, the mesh number of the inner filter screen in each layer is larger than the mesh number of the outer filter screen, so that the dust can be filtered according to the gradient from coarse to fine.

This setting can adapt to the complex flue gas characteristics of the sintering machine head and other working conditions. It has the advantages of more flexible layout, larger filtering area, less resistance, and stable operation. Overall, it can filter out fine and sticky flocculent high specific resistance. Dust can effectively avoid the adverse effects caused by fluctuations in the sintering process and secondary combustion within the electric field. In addition, the metal filter used in the disc filter box 1 is a metal product, which is completely recyclable. Compared with the problem of difficult disposal of used cloth bags, the application of this solution provides a way to gradually replace cloth bags and move in the direction of no recycling pollution. Technical Support.

Furthermore, for dusty flue gas under different working conditions, the metal filter 12 can choose stainless steel wire (SUS304, 310S, 316L, etc.), Hastelloy or iron-chromium-aluminum alloy, which has acid resistance, alkali resistance, high temperature resistance, and Material with strong abrasive properties.

Alternatively, the metal filter screen 12 can be fixed on the frame 11 through seam welding or hemming. Please refer to Figure 5, Figure 6 and Figure 7 together, wherein Figure 7 is an enlarged schematic diagram of part B in Figure 6. The metal filter 12 and the frame 11 are welded and fixed into one body through resistance welding, seam welding, or other methods. Among them, the seam welding part is shown as mark C in the figure. The edge of the metal filter 12 can form a hemming 121. As shown in Figure 7, the hemming 121 can cover the outer surface of the outer ring frame 112 and be seam welded. fixed.

Among them, the rotating shaft 2 is inserted into the middle mounting hole 13 of each disc filter box 1 in turn. The disc filter box 1 is fixedly installed, and the rotating shaft 2 can rotate relative to the disc filter box 1.

Among them, the dust cleaning device 3 is fixedly arranged on the rotating shaft 2 and can rotate synchronously under the driving of the rotating shaft 2. The dust cleaning device 3 includes six blowing pipes 31, and the blowing pipes 31 are arranged in two adjacent disc filter boxes 1 between. Optionally, in order to avoid unbalanced loading of the rotating shaft 2, six blowing pipes 31 are staggered on the outer circumference of the rotating shaft 2, that is, in the axial projection plane of the rotating shaft 2, multiple blowing pipes 31 are staggered along the outer circumference of the rotating shaft, and They are respectively located between two adjacent disc filter boxes 1. In this way, the rotating shaft 2 has better dynamic balance during rotation.

Here, a plurality of blowing nozzles 311 are provided at intervals along the extension direction of the blowing pipe 31 . Some of the blowing nozzles 311 are provided toward one of the two adjacent disc filter boxes 1 , and the other portion of the blowing nozzles 311 are directed toward the adjacent one. The other of the two disc filter boxes 1 is provided. In this way, as the rotating shaft 2 rotates, the airflow can be transported to each blowing port 311 through the corresponding blowing pipe 31, thereby comprehensively purging the filter surface of the disc filter box 1 on both sides of the blowing pipe 31 to ensure that the disc filter The dust on the metal filter screen 12 of the box 1 can be blown across the entire width by the rotating blow pipe; compared with the existing mechanical impact and rapping method, this solution has a better purging effect, thus ensuring The dust collector can operate with low resistance, reliability and efficiency for a long time.

In addition, the plurality of blowing ports 311 arranged at intervals on the blowing pipe 31 may have the same spacing or different spacings. Here, the number of blow pipes and the number of blow nozzles thereon can be determined as needed, and are not limited in the embodiments of the present application.

In a specific implementation, an external nozzle 5 can be provided at the end of the rotating shaft 2 to connect the blow pipe with the air source (external system air path is not shown) and establish a reliable air path connection relationship. For example, but not limited to, you can use Compressed air or steam and other gases are used for blowing and cleaning.

Among them, the outlet channel 4 is provided on the outlet side of the disc filter box 1 and communicates with the inner cavity of the disc filter box 1. It can also communicate with the flue gas outlet 202 of the dust removal equipment 100 through the outlet channel 4. After the dust is removed through the metal filter screen 12 on the surface of the disc filter box 1, the purified dust is discharged through the outlet channel 4 located on the outlet side of the disc filter box 1.

As shown in the figure, the outlet side of each disc filter box 1 is provided with an outlet channel 4, that is, the disc filter box 1 and the outlet channel 4 are arranged in one-to-one correspondence. In other specific implementations, the outlet sides of the two disc filter boxes 1 can also be connected to the same outlet channel. In other words, the two disc filter boxes 1 share an outlet channel; or, there can also be multiple other disc filter boxes. The outlet side of 1 shares an outlet channel (not shown in the figure), and the connection relationship between the inside of the disc filter box 1 and the flue gas outlet side can also be established.

In order to further improve the purging treatment effect and reduce the pressure requirement on the air source side, further, the external pipe can be selectively connected to the blow pipe 31 to achieve zoned purging. Please refer to Figure 3, Figure 4 and Figure 8 together, wherein Figure 8 is an enlarged schematic diagram of part I in Figure 4.

As shown in the figure, one end of the rotating shaft 2 has an insertion hole 21 arranged along the axial direction, and the side wall of the insertion hole 31 is provided with a plurality of through holes 22; as shown in Figure 8, the plurality of through holes 22 are arranged at intervals along the axial direction of the rotating shaft 2 and are staggered along the outer circumference of the rotating shaft 2 , that is, each through hole 22 is arranged corresponding to the blow pipe 31 .

Correspondingly, the dust cleaning device 3 also includes a plurality of communication pipes 32. The communication pipes 32 and the blowing pipes 31 are arranged in one-to-one correspondence and are connected respectively. The access openings of the plurality of communication pipes 32 are connected with the plurality of through holes 22 on the rotating shaft 2. are connected respectively; here, the external nozzle 5 used to communicate with the air source side is inserted into the insertion hole 21 at the end of the rotating shaft 2, and the external nozzle 5 can be connected to one of the plurality of through holes 22. who are connected.

Specifically, the external connector 5 can slide in the axial direction relative to the insertion hole 21, and the outer peripheral surface of the insertion end of the external connector 5 is provided with an annular groove 51. The annular groove 51 is connected to the inner cavity of the external connector 5. The external connector 5 It can communicate with one of the plurality of through holes 22 through the annular groove 51 . That is to say, as the external pipe 5 moves axially in the insertion hole 21, the annular groove 51 thereon can selectively communicate with the through hole 22 on the side wall of the rotating shaft 2, whereby the through hole 22 can pass through The corresponding communicating pipes 32 are transported to the corresponding blowing pipes 31, and then the disc filter boxes 1 on both sides of the blowing pipes 31 can be sprayed and cleaned to achieve zoned purging.

In addition, in order to improve the sealing between the insertion end of the external nozzle 5 and the insertion hole 21 of the rotating shaft 2, further, as shown in FIG. 8, seals 6 are respectively provided on both sides of the annular groove 51 in the axial direction. A seal 6 is pressed against and disposed between the insertion end of the external pipe 5 and the hole wall of the insertion hole 21 . In this way, a reliable seal can be formed between the annular groove 51 and the corresponding communicating through-hole 22 to prevent gas leakage from affecting the blowing effect.

In specific implementation, the seal 6 may be an O-ring or other structural seal, which is not limited in the embodiment of the present application.

For the blowing process, when the resistance between the flue gas side and the clean gas side of the metal filter in a certain area reaches a certain value, the rotating shaft 2 can be started to rotate, and the external nozzle 5 can be controlled to move to the corresponding area of the area to be purged. At the through hole, after alignment, the high-pressure gas can be transported to the corresponding blow pipe 3. The blow pipe 31 is driven by the rotating shaft 2 to perform high-pressure blowing and cleaning of the metal filter in the area, thereby using the blow pipe 31 to achieve zoned purging. .

The dust removal equipment described in Figure 1 includes a row of disc filter dust collectors 10 arranged vertically and in sequence. In other specific implementations, a multi-row disc filter dust collector can also be provided. Please refer to Figure 9, which is a front view of another dust removal equipment provided by an embodiment of the present application. In order to clearly illustrate the differences and connections between this implementation and the solution described in Figure 1, components or structures with the same functions are illustrated with the same symbols in the figure.

As shown in Figure 9, the dust removal equipment 100a includes four dust removal areas: a first dust removal area S1, a second dust removal area S2, a third dust removal area S3 and a fourth dust removal area S4. The four dust removal areas are sequentially arranged on the cover body 20a. between the flue gas inlet and the flue gas outlet, and an ash hopper 203 is provided below each dust removal area.

A disk filter dust collector 10 is provided in each dust removal area. In the first dust removal area S1, each disc filter dust collector 10 is arranged in sequence along the vertical direction; in the second dust removal area S2, each disc type filter dust collector 10 is staggered in the vertical direction; in the third dust removal area S3, The disc filter dust collectors 10 are arranged in two rows, and the disc filter dust collectors 10 in each row are respectively arranged in the vertical direction; in the fourth dust removal area S4, each disc filter dust collector 10 has different sizes, and can be freely combined It can make full use of the space in the dust removal area to improve the overall dust removal effect.

It should be noted that the number of dust removal areas and the size and number of disc filter dust collectors in each dust removal area can be determined according to actual needs and have good adaptability. The embodiments of this application are not limiting.

Based on the aforementioned disk filter dust collector 10, it can also be used in combination with an electrostatic precipitator. Please refer to Figure 10, which is a front view of yet another dust removal equipment provided by an embodiment of the present application. In order to clearly illustrate the differences and connections between this implementation and the solutions described in Figures 1 and 9, components or structures with the same functions are illustrated with the same symbols in the figures.

As shown in Figure 10, the dust removal equipment 100b includes four dust removal areas. Along the flue gas flow path in the cover 20b, the electrostatic precipitator 30 is located in the three dust removal areas located on the upstream side, and the disc filter dust collector 10 is located downstream. Dust removal area on the side. That is to say, an electrostatic precipitator is used at the front end and a disc filter dust collector 10 is used at the back end. In this way, after passing through the electrostatic precipitator, the flocculent particles produced after the charged dust layer condenses form a dust cake with good air permeability on the surface of the metal filter. At the same time, the dust cleaning device 3 is used to use high-pressure gas to clean the metal filter. Blow the surface to make the disc filter surface cleaner. In specific implementation, the injection cycle can also be shortened by adjusting the rotational speed of the rotating shaft 2, so that the operating resistance is lower than that of a conventional bag dust collector and the equipment operates more stably.

It should be noted that the specific functions of the electrostatic precipitator 30 can be implemented using existing technologies, so they will not be described in detail here.

For the combined application of the disk filter dust collector 10 and the electrostatic precipitator, the disk filter dust collector 10 can be arranged in multiple rows. Please refer to Figure 11, which is a front view of another dust removal equipment provided by an embodiment of the present application. In order to clearly illustrate the differences and connections between this implementation and the solution described in Figure 10, components or structures with the same functions are illustrated with the same symbols in the figure.

As shown in Figure 11, in the cover 20c of the dust removal equipment 100c, along the flue gas flow path in the cover 20c, the electrostatic precipitator is arranged in two dust removal areas located on the upstream side, and the disc filter dust collector 10 is located on the downstream side. Two dust removal areas. Similarly, in this embodiment, the two rows of disk filter dust collectors 10 are both arranged on the downstream side. It can be understood that the combined configuration of the electrostatic precipitator 30 and the disk filter precipitator 10 is not limited to that shown in the figures. In other specific implementations, it can be determined according to actual product design.

In the dust removal equipment described in the foregoing embodiments, the flue gas outlet is located on the side of the cover. In other specific implementations, the flue gas outlet can also be located on the top of the cover. Please refer to Figure 12, which is a front view of another dust removal equipment provided for the embodiment of the present application. In order to clearly illustrate the differences and connections between this implementation and the solution described in Figure 10, components or structures with the same functions are illustrated with the same symbols in the figure.

As shown in Figure 12, the flue gas outlet 202d of the dust removal equipment 100d is set at the top of the cover 20d; accordingly, the outlet channels 4 of the disc filter dust collector 10 are all set upward to establish a smooth flue gas path. Other components and connection methods are the same as the aforementioned implementation scheme and will not be described again here.

It should be noted that the ordinal words "first" and "second" used in this embodiment are only used to clarify the technical structure and related relationships. The use of the above ordinal words does not constitute the essence of the technical solution described in this application. sexual restrictions.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as It is the protection scope of the present invention.

Claims (14)

1. A disc filter dust collector, characterized in that it includes a plurality of disc filter boxes, rotating shafts, dust cleaning devices and outlet channels; Wherein, the plurality of disc filter boxes are arranged at intervals in sequence, the rotating shaft is inserted into the middle mounting hole of each disc filter box in sequence, and the rotating shaft can rotate relative to the disc filter box; The disc filter box includes a frame and a metal filter screen, and the metal filter screen is arranged on the outer periphery of the frame; the outlet channel is arranged on the outlet side of the disc filter box and is connected with the disc filter box. The inner lumen is connected; The dust cleaning device is fixedly arranged on the rotating shaft. The dust cleaning device includes a plurality of blow pipes, and the plurality of blow pipes are respectively arranged between two adjacent disk filter boxes. 2. The disc filter dust collector according to claim 1, characterized in that the metal filter screen is formed by superimposing multiple layers of filter screens; along the direction of smoke passing, the filter screen located on the inside of each layer of the filter screen is The mesh number of the mesh is greater than the mesh number of the filter mesh located on the outside. 3. The disc filter dust collector according to claim 1 or 2, characterized in that the material of the metal filter screen is stainless steel wire, Hastelloy or iron-chromium-aluminum alloy. 4. The disc filter dust collector according to claim 3, characterized in that the metal filter screen is fixed on the frame through a seam welding process. 5. The disc filter dust collector according to claim 1, characterized in that the disc filter box is disc-shaped. 6. The disc filter dust collector according to claim 5, characterized in that the frame includes an inner ring frame body, an outer ring frame body and reinforcing ribs, and the reinforcing ribs are connected between the inner ring frame body and the between the outer ring frame bodies. 7. The disc filter dust collector according to claim 1, characterized in that, in the axial projection plane of the rotating shaft, the plurality of blow pipes are staggeredly arranged along the outer circumference of the rotating shaft. 8. The disc filter dust collector according to claim 7, characterized in that one end of the rotating shaft has an insertion hole arranged along the axial direction, and the side wall of the insertion hole is provided with a plurality of through-holes. holes; the plurality of through-holes are arranged at intervals along the axial direction of the rotating shaft, and are staggered along the outer circumference of the rotating shaft; The dust cleaning device also includes a plurality of communication pipes, the communication pipes and the blowing pipes are arranged in one-to-one correspondence and are connected respectively, and the access pipes of the plurality of communication pipes are connected with the plurality of through holes on the rotating shaft. respectively connected; An external pipe is installed in the insertion hole. The external pipe is used to connect to the air source and can communicate with at least one of the plurality of through holes. 9. The disc filter dust collector according to claim 8, characterized in that the external connecting pipe can slide axially relative to the insertion hole, and an annular groove is provided on the outer peripheral surface of the insertion end of the external connecting pipe. ; The annular groove is connected to the inner cavity of the external nozzle, and the external nozzle can be connected to at least one of the plurality of through holes through the annular groove; the axial sides of the annular groove are respectively A seal is provided, and the seal is pressed between the insertion end of the external pipe and the hole wall of the insertion hole. 10. The disc filter dust collector according to claims 7 to 9, characterized in that a plurality of blowing ports are arranged at intervals along the extending direction of the blowing pipe, and some of the blowing ports among the plurality of blowing ports face the One of the two adjacent disc-type filter boxes is provided, and the other part of the blowing port is arranged toward the other of the two adjacent disc-type filter boxes. 11. The disc filter dust collector according to claim 1, characterized in that the outlet channel and the disc filter box are arranged in one-to-one correspondence, or the outlet channel is connected to at least two of the disc filter boxes. Box corresponding settings. 12. A kind of dust removal equipment, including a cover body, the cover body has a flue gas inlet and a flue gas outlet, and a dust collector is provided in the cover body; characterized in that, the dust collector includes any one of claims 1 to 11 The disc filter dust collector described in the item. 13. The dust removal equipment according to claim 12, characterized in that there are multiple disc filter dust collectors, and the plurality of disc filter dust collectors are arranged at intervals; the outlet of each disc filter dust collector is The channels are all extended toward the side where the smoke outlet is located. 14. The dust removal equipment according to claim 12 or 13, characterized in that the dust collector further includes an electrostatic precipitator, and the electrostatic precipitator is arranged on the upstream side along the flue gas flow path in the cover. Dust removal area, the disc filter dust collector is located in the dust removal area on the downstream side.