Filter cloth cleaning structure

Abstract

The utility model discloses a filter cloth cleaning structure which comprises a machine frame body, a negative pressure dewatering mechanism and circulating dewatering filter cloth, and the circulating dewatering filter cloth capable of passing through the negative pressure dewatering mechanism in a circumferential circulation mode is installed between the front position and the rear position of the machine frame body. The negative-pressure dehydration mechanism is mounted at the top of the rack body and is used for carrying out negative-pressure dehydration on gypsum slurry on the upper surface when the circulating dehydration filter cloth passes through the negative-pressure dehydration mechanism. The washing device has the beneficial effects that the washing assemblies are fixedly arranged between the bottom surfaces of the upper cross beams and between the top surfaces of the middle cross beams of the rack body through the dismounting assemblies, and meanwhile, the washing assemblies of the upper cross beams and the middle cross beams can be respectively aligned with the inner surface and the outer surface of the circulating dehydration filter cloth for flushing and cleaning; in this way, the inner surface and the outer surface of the circulating dehydration filter cloth can be washed and cleaned in the mode that the two washing assemblies are arranged at the same time, and efficient dehydration and impurity removal efficiency of the circulating dehydration filter cloth can be kept.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary components for alpha high-strength gypsum production, in particular to a filter cloth cleaning structure. Background Art

[0002] Industrial by-product gypsum refers to the by-product or waste residue with calcium sulfate as the main component generated by chemical reactions in industrial production, also known as chemical gypsum or industrial waste gypsum. Using industrial waste gypsum as raw material to prepare α high-strength gypsum is an emerging industrial waste gypsum utilization technology, which can effectively solve the problem of industrial by-product gypsum storage. In the process of preparing α high-strength gypsum with industrial waste gypsum as raw material, the main process principle is: industrial by-product gypsum powder (the main component is calcium sulfate dihydrate CaSO4.2H2O) is mixed and stirred with a certain proportion of water and crystal conversion agent to form dihydrate gypsum slurry, which enters the autoclave reactor. Under pressurized and heated conditions, the double-layer structure of the dihydrate gypsum in the slurry is destroyed, 3 / 4 of the H2O between the two ion layers is lost, and the remaining H2O and CaSO4 are recrystallized to become α-type hemihydrate high-strength gypsum crystals. However, industrial by-product gypsum powder usually contains some soluble impurities when it enters the factory. These soluble impurities need to be removed first before it is transported to prepare dihydrate gypsum slurry. In this process, a negative pressure dehydration device is required. A circulating negative pressure dehydration device is one of the dehydration equipment. It allows the dehydration filter cloth to circulate through the negative pressure filtration mechanism to achieve dehydration and impurity removal of the gypsum slurry. However, after the dehydration filter cloth passes through the negative pressure filtration mechanism, a large amount of gypsum and some insoluble impurities will adhere to the surface of the filter cloth. If it is not rinsed and cleaned, the dehydration filter cloth will have a low dehydration and impurity removal efficiency due to blockage of the filter holes during the recycling process. Utility Model Content

[0003] The purpose of the utility model is to provide a filter cloth cleaning structure in order to solve the above-mentioned problem. A flushing assembly is fixedly arranged between the bottom surface of the upper crossbeam of the frame body and the top surface of the middle crossbeam through a disassembly assembly. At the same time, the flushing assemblies of the upper crossbeam and the middle crossbeam can be respectively aligned with the inner surface and the outer surface of the circulating dehydration filter cloth for flushing and cleaning. In this way, the inner and outer surfaces of the circulating dehydration filter cloth can be flushed and cleaned respectively by simultaneously arranging two flushing assemblies. See the following description for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a filter cloth cleaning structure, comprising a frame body, a negative pressure dehydration mechanism and a circulating dehydration filter cloth, wherein the circulating dehydration filter cloth capable of circumferentially circulating through the negative pressure dehydration mechanism is installed between the front and rear positions of the frame body, and the negative pressure dehydration mechanism is installed on the top of the frame body, so as to negatively dehydrate the gypsum slurry on the upper surface of the circulating dehydration filter cloth when the circulating dehydration filter cloth passes through the negative pressure dehydration mechanism;

[0006] The top of the front and rear positions of the frame body are both upper crossbeams arranged in the transverse direction, and the middle part of the front and rear positions of the frame body are both middle crossbeams arranged in the transverse direction. A flushing component for flushing and cleaning the circulating dehydration filter cloth when it passes through is detachably fixed between the bottom surfaces of the upper crossbeams and the top surfaces of the middle crossbeams through a disassembly and assembly component, and the flushing components of the upper crossbeam and the middle crossbeam respectively flush the inner surface and outer surface of the circulating dehydration filter cloth.

[0007] Preferably, filter cloth conveying rollers for conveying the circulating dewatering filter cloth in circumferential circulation are longitudinally installed between the upper crossbeam and the middle crossbeam at positions beside the flushing assembly.

[0008] Preferably, the flushing components include a water pipe and a nozzle, the water pipe is arranged longitudinally, the front end of the water pipe is open and the rear end is closed, and both ends of the water pipe are fixedly connected to the corresponding disassembly and assembly components through a clamp, and the periphery of the water pipe is fixedly connected to a plurality of nozzles, and the nozzles of the two water pipes extend radially outward and respectively flush the inner surface and outer surface of the circulating dehydration filter cloth.

[0009] Preferably, the front end of the water pipe is coaxially fixed with a pipe joint for fixed connection with an external pipeline.

[0010] Preferably, the axes of the nozzles are vertically directed toward the corresponding outer surface of the circulating dehydration filter cloth.

[0011] Preferably, the pipe joints are all quick joints, and the multiple nozzles of the water pipe are evenly distributed in the longitudinal direction.

[0012] Preferably, the disassembly and assembly components include a matching seat and a fixing sleeve, the clamp parts at both ends of the water pipe are vertically fixed with the matching seat, the outer end surfaces of the matching seats at the front and rear positions that are away from each other are longitudinally provided with limiting holes, the bottom surface of the upper cross beam and the top surface of the middle cross beam at the front and rear positions are vertically fixed with the fixing sleeve, and the fixing sleeve is vertically provided with a matching groove from the outside to the inside, and the matching groove corresponds one-to-one with the matching seat and is vertically slidably matched.

[0013] Preferably, the outer end surfaces of the fixing sleeves at the front and rear positions that are away from each other are both provided with mounting holes in the longitudinal direction, the mounting holes are both vertically connected with the corresponding matching grooves, and the mounting holes are both longitudinally coaxial with the corresponding limiting holes, the mounting holes are both longitudinally coaxially slidably matched with limiting rods, and the inner ends of the limiting rods at the front and rear positions that are close to each other are longitudinally slidably matched with the corresponding limiting holes, the outer ends of the limiting rods at the front and rear positions that are away from each other extend out of the corresponding outer end surfaces of the fixing sleeve and are coaxially fixed with handles, the part of the limiting rod located between the corresponding handle and the outer end surface of the fixing sleeve is coaxially gap-matched with a spring, and the two ends of the spring are respectively fixedly connected to the corresponding handle and the outer end surface of the fixing sleeve.

[0014] Preferably, the horizontal cross-section shapes of the mating seat and the mating groove are both rectangular.

[0015] Preferably, the matching grooves are all blind grooves in the vertical direction, and the inner ends of the matching seats are in close contact with the inner ends of the corresponding matching grooves in the vertical direction.

[0016] The filter cloth cleaning structure described above is adopted. Specifically, during use, since the flushing assembly is fixedly arranged between the bottom surface of the upper crossbeam of the frame body and the top surface of the middle crossbeam through the disassembly and assembly assembly, the flushing assemblies of the upper crossbeam and the middle crossbeam can be respectively aligned with the inner surface and the outer surface of the circulating dehydration filter cloth for flushing and cleaning. In this way, the inner and outer surfaces of the circulating dehydration filter cloth can be flushed and cleaned respectively by simultaneously arranging two flushing assemblies, which is beneficial for the circulating dehydration filter cloth to maintain a high dehydration and impurity removal efficiency. Specifically, when flushing and cleaning, the flushing assembly connects the water pipes to the external water supply pipeline through the pipe joints, and the pressurized water is respectively transported to the multiple nozzles through the water pipes to be sprayed and sprayed on the surface of the circulating dehydration filter cloth, so as to flush and clean the surface of the circulating dehydration filter cloth. Since the matching seat and the matching groove are vertically slidably matched at the beginning, and the limit rod and the limit hole are positioned at the same time, The two flushing assemblies can be detachably fixed between the bottom surface of the upper beam and the top surface of the middle beam by means of the vertical sliding cooperation between the cooperation seat and the cooperation groove and the longitudinal sliding cooperation between the limiting rod and the limiting hole. The fixing combination mode of the two flushing assemblies between the bottom surface of the upper beam and the top surface of the middle beam is simple and easy to operate, which makes it convenient to quickly fix and arrange the flushing assemblies in the corresponding positions to flush and clean the circulating dehydration filter cloth. Subsequently, it is only necessary to pull the limiting rod out of the limiting hole to make the cooperation seat vertically out of the cooperation groove and separate the two flushing assemblies between the bottom surface of the upper beam and the top surface of the middle beam. The separation mode of the two flushing assemblies between the bottom surface of the upper beam and the top surface of the middle beam is simple and easy to operate, which makes it convenient to carry out regular cleaning and maintenance after the flushing assemblies are disassembled, which is beneficial for the flushing assemblies to maintain efficient and stable flushing and cleaning efficiency.

[0017] The beneficial effects are as follows: 1. The utility model is provided with a flushing assembly fixedly disposed between the bottom surface of the upper crossbeam of the frame body and the top surface of the middle crossbeam through a disassembly assembly, and at the same time, the flushing assemblies of the upper crossbeam and the middle crossbeam can respectively flush and clean the inner surface and the outer surface of the circulating dehydration filter cloth, so that the inner and outer surfaces of the circulating dehydration filter cloth can be flushed and cleaned respectively by simultaneously arranging two flushing assemblies, which is beneficial to maintaining a high dehydration and impurity removal efficiency of the circulating dehydration filter cloth;

[0018] 2. The two flushing components can be detachably fixed between the bottom surface of the upper beam and the top surface of the middle beam by means of vertical sliding cooperation between the matching seat and the matching groove and longitudinal sliding cooperation between the limiting rod and the limiting hole. The fixing combination of the two flushing components between the bottom surface of the upper beam and the top surface of the middle beam is simple and easy to operate, which makes it easy to quickly fix and arrange the flushing components in the corresponding positions to flush and clean the circulating dehydration filter cloth;

[0019] 3. Simply pull the limit rod out of the limit hole to make the mating seat vertically out of the mating groove and detach the two flushing components from between the bottom surface of the upper beam and between the top surface of the middle beam. The two flushing components are separated from each other between the bottom surface of the upper beam and between the top surface of the middle beam, respectively. This is simple and easy to operate, and then it is convenient to perform regular cleaning and maintenance after the flushing components are disassembled, which is beneficial to maintaining efficient and stable flushing and cleaning efficiency of the flushing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the overall axonometric diagram of the utility model. Figure 1 ;

[0022] Figure 2 This is the overall axonometric diagram of the utility model. Figure 2 ;

[0023] Figure 3 This utility model Figure 2 A local enlarged view of point A;

[0024] Figure 4 This utility model Figure 1 Schematic cross-section diagram;

[0025] Figure 5 This utility model Figure 4 A partial enlarged view of point B;

[0026] Figure 6 This utility model Figure 1 The front view of the external image;

[0027] Figure 7 This utility model Figure 1 Dorsal external view.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Circulating dehydration filter cloth; 101. Filter cloth conveying roller; 2. Frame body; 201. Upper crossbeam; 202. Middle crossbeam; 3. Flushing assembly; 301. Nozzle; 302. Water pipe; 303. Hoop; 304. Pipe joint; 4. Negative pressure dehydration mechanism; 5. Disassembly and assembly assembly; 501. Fixed sleeve; 502. Spring; 503. Handle; 504. Matching seat; 505. Matching groove; 506. Limit hole; 507. Limit rod; 508. Installation hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0031] See also Figure 1-Figure 7As shown, the utility model provides a filter cloth cleaning structure, including a frame body 2, a negative pressure dehydration mechanism 4 and a circulating dehydration filter cloth 1, a circulating dehydration filter cloth 1 that can circulate circumferentially through the negative pressure dehydration mechanism 4 is installed between the front and rear positions of the frame body 2, and a negative pressure dehydration mechanism 4 is installed on the top of the frame body 2 to negatively pressure dehydrate the gypsum slurry on the upper surface of the circulating dehydration filter cloth 1 when the negative pressure dehydration mechanism 4 passes through it. The top of the front and rear positions of the frame body 2 are all upper crossbeams 201 arranged in the transverse direction, and the middle of the front and rear positions of the frame body 2 are all middle crossbeams 202 arranged in the transverse direction. The bottom surfaces of the upper crossbeams 201 and the top surfaces of the middle crossbeams 202 are detachably fixed by disassembly and assembly components 5 for flushing and cleaning the circulating dewatering filter cloth 1 when it passes through. Specifically, the disassembly and assembly components 5 include a matching seat 504 and a fixing sleeve 501, and the hoop parts 303 at both ends of the water delivery pipe 302 are vertically fixed with matching seats 504, and the matching seats at the front and rear positions are fixed to the filter cloth 1. The outer end surfaces of the seats 504 that are away from each other are longitudinally provided with limiting holes 506, the bottom surface of the upper cross beam 201 at the front and rear positions and the top surface of the middle cross beam 202 are vertically fixed with fixing sleeves 501, and the fixing sleeves 501 are vertically provided with matching grooves 505 from the outside to the inside, and the matching grooves 505 correspond to the matching seats 504 one by one and are vertically slidably matched, and the outer end surfaces of the fixing sleeves 501 at the front and rear positions that are away from each other are longitudinally provided with mounting holes 508, and the mounting holes 508 are vertically connected with the corresponding matching grooves 505, and the mounting holes 508 are connected with the corresponding limiting holes 506 is longitudinally coaxial, the mounting holes 508 are all longitudinally coaxially slidably matched with the limiting rods 507, and the inner ends of the limiting rods 507 at the front and rear positions that are close to each other are longitudinally slidably matched with the corresponding limiting holes 506, and the outer ends of the limiting rods 507 at the front and rear positions that are far away from each other extend out of the outer end surface of the corresponding fixing sleeve 501 and are coaxially fixed with the handle 503, and the part of the limiting rod 507 located between the corresponding handle 503 and the outer end surface of the fixing sleeve 501 is coaxially gap-matched with the spring 502, and the two ends of the spring 502 are respectively connected to the corresponding handle 503 and The outer end surface of the fixing sleeve 501 is fixedly connected. Such an arrangement makes it convenient to detachably fix the two flushing components 3 between the bottom surface of the upper crossbeam 201 and the top surface of the middle crossbeam 202 by means of vertical sliding cooperation between the matching seat 504 and the matching groove 505 and longitudinal sliding cooperation between the limiting rod 507 and the limiting hole 506. At the same time, it is only necessary to pull the limiting rod 507 out of the limiting hole 506 so that the matching seat 504 can be vertically disengaged from the matching groove 505, and the two flushing components 3 can be detached from the bottom surface of the upper crossbeam 201 and the top surface of the middle crossbeam 202.

[0032] At the same time, the flushing components 3 of the upper crossbeam 201 and the middle crossbeam 202 are respectively used to flush the inner surface and outer surface of the circulating dehydration filter cloth 1. Specifically, the flushing components 3 include a water pipe 302 and a nozzle 301. The water pipe 302 is arranged longitudinally, the front end of the water pipe 302 is open and the rear end is closed, and both ends of the water pipe 302 are fixedly connected to the corresponding disassembly and assembly components 5 through a clamp 303. The periphery of the water pipe 302 is fixedly connected with a plurality of nozzles 301. The nozzles 301 of the two water pipes 302 extend radially outward and are respectively used to flush the inner surface and outer surface of the circulating dehydration filter cloth 1. Such an arrangement makes it easy to connect the water pipes 302 to the external water supply pipeline through the pipe joint 304, and the pressurized water is respectively transported to the plurality of nozzles 301 through the water pipe 302 to be sprayed and sprayed on the surface of the circulating dehydration filter cloth 1, so as to flush and clean the surface of the circulating dehydration filter cloth 1.

[0033] As a preferred solution in this case, filter cloth conveying rollers 101 for conveying the circulating dewatered filter cloth 1 in a circumferential circulation are longitudinally installed between the upper crossbeam 201 and the middle crossbeam 202 at the position beside the flushing assembly 3. Such an arrangement facilitates the circumferential circulation of the circulating dewatered filter cloth 1 by rolling the filter cloth conveying rollers 101. The front end of the water pipe 302 is coaxially fixed with a pipe joint 304 for fixed connection with an external pipeline. Such an arrangement facilitates the combined connection of the water pipe 302 with the external water supply pipeline through the pipe joint 304. The axes of the nozzles 301 are vertically pointed to the corresponding outer surface of the circulating dewatered filter cloth 1. Such an arrangement facilitates the water spraying direction of the nozzle 301 to have a good flushing and cleaning effect on the circulating dewatered filter cloth 1.

[0034] At the same time, the pipe joints 304 are all quick joints, and the multiple nozzles 301 of the water supply pipe 302 are evenly distributed in the longitudinal direction. This arrangement facilitates the rapid combination and disassembly of the pipe joints 304 and the external water supply pipeline, and at the same time facilitates the nozzles 301 to efficiently and stably flush and clean the circulating dewatering filter cloth 1. The horizontal cross-sectional shapes of the matching seat 504 and the matching groove 505 are both rectangular. This arrangement facilitates the matching seat 504 and the matching groove 505 to have a good positioning guide design when they are vertically slidably matched. The matching grooves 505 are all blind grooves in the vertical direction, and the inner ends of the matching seats 504 in the vertical direction are in close contact with the inner ends of the corresponding matching grooves 505. This arrangement facilitates the matching seat 504 and the matching grooves 505 to be in close contact with each other in the vertical direction. When the limit rod 507 moves to be coaxial with the limit hole 506 during the vertical sliding match, it can be clearly prompted by the inner ends of the matching seats 504 in the vertical direction being in close contact with the inner ends of the corresponding matching grooves 505.

[0035] With the above structure, specifically in the process of use, since the flushing assembly 3 is fixedly arranged between the bottom surface of the upper crossbeam 201 of the frame body 2 and the top surface of the middle crossbeam 202 through the disassembly assembly 5, the flushing assembly 3 of the upper crossbeam 201 and the middle crossbeam 202 can be respectively aligned with the inner surface and the outer surface of the circulating dehydration filter cloth 1 for flushing and cleaning, so that the inner and outer surfaces of the circulating dehydration filter cloth 1 can be flushed and cleaned respectively by setting two flushing assemblies 3 at the same time, which is beneficial to the circulating dehydration. The filter cloth 1 maintains a high dehydration and impurity removal efficiency. When the flushing component 3 is flushed and cleaned, the water pipes 302 are connected to the external water supply pipeline through the pipe joints 304, and the pressurized water is respectively transported to the multiple nozzles 301 through the water pipes 302 and sprayed on the surface of the circulating dehydration filter cloth 1, so as to flush and clean the surface of the circulating dehydration filter cloth 1. At the beginning, the matching seat 504 and the matching groove 505 are vertically slidably matched, and the limiting rod 507 and the limiting hole 506 are longitudinally slidably matched. At this time, the two flushing components 3 can be detachably fixed between the bottom surface of the upper crossbeam 201 and the top surface of the middle crossbeam 202 by means of vertical sliding cooperation between the matching seat 504 and the matching groove 505 and longitudinal sliding cooperation between the limiting rod 507 and the limiting hole 506. The fixing combination of the two flushing components 3 between the bottom surface of the upper crossbeam 201 and the top surface of the middle crossbeam 202 is simple and easy to operate, and then it is convenient to quickly fix the flushing components 3 in the corresponding position to flush and clean the circulating dehydration filter cloth 1. The method of separating the two flushing components 3 between the bottom surface of the upper beam 201 and the top surface of the middle beam 202 is simple and easy to operate, which makes it convenient to perform regular cleaning and maintenance of the flushing components 3 after they are disassembled, which is beneficial for maintaining efficient and stable flushing and cleaning efficiency of the flushing components 3.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A filter cloth cleaning structure, comprising a frame body (2), a negative pressure dehydration mechanism (4) and a circulating dehydration filter cloth (1), characterized in that: The circulating dehydration filter cloth (1) capable of circumferentially circulating through the negative pressure dehydration mechanism (4) is installed between the front and rear positions of the frame body (2), and the negative pressure dehydration mechanism (4) is installed on the top of the frame body (2) for negatively dehydrating the gypsum slurry on the upper surface of the circulating dehydration filter cloth (1) when the negative pressure dehydration mechanism (4) passes through the gypsum slurry under negative pressure; The top of the front and rear positions of the frame body (2) are both upper crossbeams (201) arranged in the transverse direction, and the middle of the front and rear positions of the frame body (2) are both middle crossbeams (202) arranged in the transverse direction. A flushing assembly (3) for flushing and cleaning the circulating dewatering filter cloth (1) when it passes through is detachably fixed via a disassembly assembly assembly (5), and the flushing assemblies (3) of the upper crossbeam (201) and the middle crossbeam (202) flush the inner surface and the outer surface of the circulating dewatering filter cloth (1) respectively.

2. A filter cloth cleaning structure according to claim 1, characterized in that: A filter cloth conveying roller (101) for conveying the circulating dewatering filter cloth (1) in a circumferential circulation is longitudinally installed between the upper crossbeam (201) and the middle crossbeam (202) at a position beside the flushing assembly (3).

3. A filter cloth cleaning structure according to claim 1 or 2, characterized in that: The flushing components (3) each comprise a water pipe (302) and a nozzle (301); the water pipe (302) is arranged longitudinally; the front end of the water pipe (302) is open and the rear end is closed; both ends of the water pipe (302) are fixedly connected to the corresponding disassembly and assembly components (5) via a clamp (303); the periphery of the water pipe (302) is fixedly connected to a plurality of nozzles (301); the nozzles (301) of the two water pipes (302) extend radially outward and respectively flush the inner surface and the outer surface of the circulating dewatering filter cloth (1).

4. A filter cloth cleaning structure according to claim 3, characterized in that: The front end of the water delivery pipe (302) is coaxially fixed with a pipe joint (304) for fixed connection with an external pipeline.

5. A filter cloth cleaning structure according to claim 4, characterized in that: The axes of the nozzles (301) are all vertically directed toward the corresponding outer surface of the circulating dewatering filter cloth (1).

6. A filter cloth cleaning structure according to claim 5, characterized in that: The pipe joints (304) are all quick joints, and the multiple nozzles (301) of the water pipe (302) are evenly distributed in the longitudinal direction.

7. A filter cloth cleaning structure according to claim 4, 5 or 6, characterized in that: The disassembly and assembly components (5) each comprise a matching seat (504) and a fixing sleeve (501); the clamping parts (303) at both ends of the water pipe (302) are vertically fixed with the matching seats (504); the outer end surfaces of the matching seats (504) at the front and rear positions that are away from each other are longitudinally provided with limiting holes (506); the bottom surfaces of the upper cross beam (201) and the top surfaces of the middle cross beam (202) at the front and rear positions are vertically fixed with the fixing sleeve (501); the fixing sleeve (501) is vertically provided with a matching groove (505) from the outside to the inside; the matching groove (505) corresponds to the matching seat (504) one by one and is vertically slidably matched.

8. A filter cloth cleaning structure according to claim 7, characterized in that: The outer end surfaces of the fixing sleeves (501) at the front and rear positions that are away from each other are both provided with mounting holes (508) in the longitudinal direction, the mounting holes (508) are both vertically connected with the corresponding matching grooves (505), and the mounting holes (508) are both longitudinally coaxially aligned with the corresponding limiting holes (506), the mounting holes (508) are both longitudinally coaxially slidably matched with the limiting rods (507), and the inner ends of the limiting rods (507) at the front and rear positions that are close to each other are both aligned with the corresponding limiting holes (506). 6) longitudinal sliding fit, the outer ends of the limit rods (507) at the front and rear positions, which are away from each other, extend out of the corresponding outer end surface of the fixing sleeve (501) and are coaxially fixed with a handle (503), and the part of the limit rod (507) located between the corresponding handle (503) and the outer end surface of the fixing sleeve (501) is coaxially gap-fitted with a spring (502), and the two ends of the spring (502) are respectively fixedly connected to the corresponding handle (503) and the outer end surface of the fixing sleeve (501).

9. A filter cloth cleaning structure according to claim 8, characterized in that: The horizontal cross-sectional shapes of the matching seat (504) and the matching groove (505) are both rectangular.

10. A filter cloth cleaning structure according to claim 8 or 9, characterized in that: The matching grooves (505) are all blind grooves in the vertical direction, and the inner ends of the matching seats (504) are in close contact with the inner ends of the corresponding matching grooves (505) in the vertical direction.

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