CN220048350U - Sludge crushing and filtering device - Google Patents

Abstract

The utility model discloses a sludge crushing and filtering device which comprises a shell, a crushing assembly and a filter plate arranged in the shell, wherein a feed inlet and a discharge outlet are formed in the shell, the crushing assembly is arranged at the feed inlet and is used for crushing sludge blocks and gravels, the filter plate is positioned between the crushing assembly and the cavity wall of the shell and is used for filtering sludge fragments, a scraper is connected to the crushing assembly, and the scraper is abutted with the filter plate so that the scraper scrapes the sludge fragments on the filter plate. When the sludge crushing and filtering device is used, the filter plate is arranged between the crushing assembly and the cavity wall of the shell, and the scraping plate is connected to the crushing assembly, so that the crushing assembly can synchronously drive the scraping plate to rotate when the sludge blocks and the gravels are crushed, and the scraping plate is abutted with the filter plate, so that the scraping plate can timely and effectively clean the sludge adhered and accumulated on the filter plate, and the sludge treatment efficiency is greatly improved.

Description

Sludge crushing and filtering device

Technical Field

The utility model relates to the technical field of sludge treatment, in particular to a sludge crushing and filtering device.

Background

The sludge treatment is a processing process of reducing, stabilizing and harmless treatment such as concentration, tempering, dehydration, stabilization, desiccation or incineration of sludge. The primary screened sludge still contains a large amount of hard mud blocks and a small amount of gravels, and when entering subsequent treatment equipment, equipment damage and pipeline blockage are easy to occur, so that the mud blocks, gravels and the like need to be crushed.

Applicant has obtained the following prior art by retrieving the following formula "cl (sludge treatment) AND cl (filtration) OR cl (crushing) AND desc (sludge cake)", in particular, the patent publication CN107350033a discloses a sludge crusher comprising a body, a shaft, a crushing assembly AND a driving assembly; the rotating shaft is arranged in the machine body, and the crushing assembly is fixed on the rotating shaft; the driving component drives the rotating shaft to rotate; the crushing assembly comprises a plurality of layers of crushing cutter groups which are sequentially arranged from top to bottom along the axial direction of the rotating shaft; each layer of crushing cutter group comprises at least four crushing cutters; the at least four crushing cutters are fixed at the radial extension end of the rotating shaft and are uniformly distributed at intervals along the circumferential direction of the rotating shaft; the crushing cutters of adjacent layers are staggered. Compared with the prior art, the utility model has the advantages that the sludge can be effectively crushed by arranging the staggered multi-layer crushing cutters, the sludge is effectively prevented from being leaked, the sludge is completely crushed, and the follow-up transportation and treatment are convenient.

From the above patent, it can be seen that this sludge crusher can make mud break completely, is convenient for follow-up transportation and processing, but because mud clod is when breaking, mud adheres to the filter surface, and can't clear up the mud that piles up in time effectively, makes the filter board take place to block up and reduce the treatment efficiency to mud easily.

Disclosure of Invention

The utility model mainly aims to provide a sludge crushing and filtering device, and aims to solve the problems that the conventional sludge crushing device cannot timely and effectively clean accumulated sludge, and a filter plate is easy to be blocked and the treatment efficiency of the sludge is reduced.

In order to achieve the above purpose, the utility model provides a sludge crushing and filtering device, which comprises a shell, a crushing assembly and a filtering plate arranged in the shell, wherein a feed inlet and a discharge outlet are formed in the shell, the crushing assembly is arranged at the feed inlet and is used for crushing sludge blocks and gravels, the filtering plate is positioned between the crushing assembly and the cavity wall of the shell and is used for filtering sludge fragments, a scraping plate is connected to the crushing assembly, and the scraping plate is abutted with the filtering plate so that the scraping plate scrapes the sludge fragments on the filtering plate.

Preferably, the top detachably of casing is connected with the apron that is used for sealing the casing inner chamber, broken subassembly includes the motor and is used for cutting the broken blade of mud piece, the motor vertical set up in on the apron, the output shaft of motor stretches into in the casing and be connected with the transmission shaft, the cover is equipped with the fixed plate on the transmission shaft, just broken blade is rotationally installed to through a pivot on the fixed plate.

Preferably, a filtering grid plate is arranged in the shell and close to the discharge hole, a through hole for the transmission shaft to pass through is formed in the filtering grid plate, and the transmission shaft is rotationally connected with the through hole.

Preferably, the number of the fixing plates is a plurality, the plurality of fixing plates are uniformly arranged at intervals along the extending direction of the transmission shaft, and the crushing blades are arranged between two adjacent fixing plates.

Preferably, the number of the crushing blades is plural, and the plurality of the crushing blades are arranged in a uniform array along the center of the fixing plate.

Preferably, a connecting seat is formed on one side of the cover plate facing the inner cavity of the shell, a rotary table is rotatably installed on the connecting seat, a baffle is arranged at the bottom of the rotary table, the baffle is used for installing the rotary table on the connecting seat through a plurality of locking pieces, a scraping plate is connected on the outer wall of the rotary table, and the scraping plate is abutted with the filtering grid plate and sleeved on the transmission shaft.

Preferably, a stirring rod is arranged at the middle position close to the scraping plate, one end of the stirring rod is connected with the scraping plate, and the other end of the stirring rod is sleeved on the transmission shaft.

Preferably, slopes are formed on both the scraping plate and the stirring rod.

Preferably, the transmission shaft passes through the connecting seat and is connected with a transmission gear, the transmission gear is positioned in the turntable, a plurality of locking pieces are respectively rotatably provided with planetary gears which are used for being meshed with the transmission gear, and gear teeth which are meshed with the planetary gears are formed on the inner wall of the turntable, so that the turntable can rotate relative to the connecting seat.

Preferably, the number of the scrapers is plural, and the plurality of the scrapers are uniformly arranged in an array along the center line of the turntable.

The beneficial effects are that:

1. when the sludge crushing and filtering device is used, the filter plate is arranged between the crushing assembly and the cavity wall of the shell, and the scraping plate is connected to the crushing assembly, so that the crushing assembly can synchronously drive the scraping plate to rotate when the sludge blocks and the gravels are crushed, and the scraping plate is abutted with the filter plate, so that the scraping plate can timely and effectively clean the sludge adhered and accumulated on the filter plate, and the sludge treatment efficiency is greatly improved.

2. In the sludge crushing and filtering device, the top of the shell is provided with the feed inlet, the bottom of the shell is provided with the discharge outlet, the crushing assembly is arranged at the feed inlet, and after the sludge is subjected to preliminary filtration in the front, the sludge is conveyed into the shell through the feed inlet and is crushed into impurities such as mud blocks and gravels through the crushing assembly, so that the mud blocks and the gravels are prevented from blocking the subsequent treatment equipment, and the normal operation of the whole sludge treatment system is ensured.

3. According to the sludge crushing and filtering device, the sludge blocks and the gravels can be crushed simultaneously only through the crushing assembly, so that the device is suitable for treating sludge with different impurities, the applicability is greatly improved, and the device is reliable to use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is an isometric view of a sludge crushing and filtering apparatus according to an embodiment of the present utility model;

FIG. 2 is a top view of a sludge crushing and filtering apparatus according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

FIG. 4 is a schematic view showing a partial structure of a sludge crushing and filtering apparatus according to an embodiment of the present utility model;

FIG. 5 is a partial enlarged view at B in FIG. 4;

fig. 6 is a schematic view of an assembly of the sludge crushing and filtering apparatus 8, 10 and 11 according to an embodiment of the present utility model, wherein 12 is also shown.

In the figure: 100-a sludge crushing and filtering device; 1-a housing; 2-a filter plate; 3-a feed inlet; 4-a discharge hole; 5-scraping plate; 6-cover plate; 7-a motor; 8-crushing the blades; 9-a transmission shaft; 10-fixing plates; 11-a rotating shaft; 12-a filtration grid; 13-connecting seats; 14-a turntable; 15-baffle plates; 16-locking member; 17-stirring rod; 18-ramp; 19-a transmission gear; 20-planetary gear.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like in the description of the present utility model, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present utility model, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1:

the utility model provides a sludge crushing and filtering device 100.

In an embodiment of the present utility model, a sludge crushing and filtering device 100 includes a housing 1, a crushing assembly and a filter plate 2 disposed in the housing 1, wherein a feed inlet 3 and a discharge outlet 4 are formed on the housing 1, the crushing assembly is disposed at the feed inlet 3 and is used for crushing sludge blocks and gravels, the filter plate 2 is disposed between the crushing assembly and a cavity wall of the housing 1 and is used for filtering sludge fragments, a scraper 5 is connected to the crushing assembly, and the scraper 5 abuts against the filter plate 2, so that the scraper 5 scrapes the sludge fragments on the filter plate 2.

Specifically, as shown in fig. 1 and 3, in a sludge crushing and filtering device 100 of the present utility model, a feed inlet 3 is formed at the top of a casing 1, a discharge outlet 4 is formed at the bottom of the casing 1, a crushing assembly is disposed at the feed inlet 3, and after the sludge is preliminarily filtered in advance, the sludge is conveyed into the casing 1 through the feed inlet 3 and crushed into sludge blocks, gravel and other impurities therein through the crushing assembly, so that the sludge blocks, gravel and other impurities are prevented from blocking the subsequent treatment equipment and ensuring the normal operation of the whole sludge treatment system, and the structural design is simple and reasonable.

Further, when the sludge crushing and filtering device 100 is used, as the filter plate 2 is arranged between the crushing assembly and the cavity wall of the shell 1, and the scraping plate 5 is connected to the crushing assembly, the scraping plate 5 can be synchronously driven to rotate when the crushing assembly crushes sludge blocks and gravels, and the scraping plate 5 is abutted with the filter plate 2, so that the scraping plate 5 can effectively clean the sludge adhered and accumulated on the filter plate 2 in time, and the sludge treatment efficiency is greatly improved.

It is worth to say that the existing sludge crusher is usually used for a single material, and the sludge often has hard impurities such as gravels besides the clods, if a crushing device for crushing the clods is selected to treat the sludge, the crushing blades or rollers are easily deformed and damaged by the hard impurities such as gravels, so that the treatment effect on the sludge is reduced, and the service life of the crushing device is shortened; meanwhile, if the crushing device for crushing the gravel is selected to treat the sludge, the waste of energy sources, the increase of cost and the like are easily caused by the overlarge power of the device, and the sludge crushing and filtering device 100 can crush the sludge blocks and the gravel at the same time only through the crushing component, so that the device is suitable for treating the sludge with different impurities, the applicability is greatly improved, and the use is reliable.

In an embodiment, the top of the shell 1 is detachably connected with a cover plate 6 for closing the inner cavity of the shell 1, the crushing assembly comprises a motor 7 and crushing blades 8 for cutting sludge blocks, the motor 7 is vertically arranged on the cover plate 6, an output shaft of the motor 7 stretches into the shell 1 and is connected with a transmission shaft 9, a fixed plate 10 is sleeved on the transmission shaft 9, and the crushing blades 8 are rotatably mounted on the fixed plate 10 through a rotating shaft 11.

Specifically, as shown in fig. 1 to 4, in a sludge crushing and filtering apparatus 100 of the present utility model, a cover plate 6 for closing an inner cavity of a housing 1 is detachably attached to a top of the housing 1, thereby facilitating installation and maintenance of a crushing assembly and a filter plate 2 of the inner cavity of the housing 1. Further, because the motor 7 in the crushing assembly is vertically arranged on the cover plate 6, and the output shaft of the motor 7 stretches into the shell 1 and is connected with the transmission shaft 9, the transmission shaft 9 is sleeved with the fixing plate 10, the crushing blade 8 is rotatably arranged on the fixing plate 10 through the rotating shaft 11, when the motor 7 operates, the main shaft of the motor 7 rotates and synchronously drives the transmission shaft 9 and the fixing plate 10 to rotate, at the moment, the crushing blade 8 stretches outwards along the axis of the rotating shaft 11 under the action of centrifugal force to rotate and gradually trend towards a state perpendicular to the central line of the transmission shaft 9, so that the crushing blade 8 can cut impurities such as mud blocks and gravels at extremely high linear speed, meanwhile, small mud blocks and gravels are thrown onto the cavity wall of the shell 1, mud blocks and gravels with larger volume after the cutting of the crushing blade 8 are separated under the action of the filter plate 2, at the moment, the main shaft of the motor 7 continuously rotates and repeatedly carries out repeated cutting and crushing on the mud blocks and gravels for multiple times, further, the crushing treatment on the mud blocks and gravels is gradually completed, and the treatment effect on the mud blocks and gravels is improved, and the use is reliable. As will be appreciated, when insufficient centrifugal force is generated to crush the gravel, the crushing blades 8 rotate about the axis of the rotary shaft 11 and automatically retract onto the fixed plate 10, thereby effectively avoiding impact jamming of the crushing blades 8.

In an embodiment, as shown in fig. 3 and 4, a filtering grid plate 12 is disposed in the casing 1 near the discharge hole 4, through holes for the transmission shaft 9 to pass through are formed on the filtering grid plate 12, and the transmission shaft 9 is rotatably connected with the through holes. It can be appreciated that, because the position that is close to the treatment mouth in casing 1 is provided with the filter grid plate 12, the space that the filter grid plate 12 and filter 2 enclose this moment can be regarded as carrying out broken accommodation space of handling to mud and gravel, and broken blade 8 is located the accommodation space, and filter grid plate 12 can separate and keep off bulky mud and gravel in the accommodation space, carries out broken handling through broken blade 8 simultaneously to this is convenient for accomplish the broken handling to mud and gravel, and structural design is simple, reasonable. Further, since the through holes for the transmission shaft 9 to pass through are formed in the filter grid plate 12, and the transmission shaft 9 is rotationally connected with the through holes, the lower end of the transmission shaft 9 has a limiting effect, so that the transmission shaft 9 and the crushing blades 8 on the transmission shaft 9 are rotationally more stable, and equipment damage and the like caused by inclined deflection when the transmission shaft 9 rotates are prevented.

In one embodiment, the number of the fixing plates 10 is plural, the plurality of fixing plates 10 are uniformly spaced along the extending direction of the transmission shaft 9, and the crushing blades 8 are installed between two adjacent fixing plates 10. Specifically, as shown in fig. 4, a plurality of fixed plates 10 are arranged on the transmission shaft 9 along the vertical direction at intervals, and the crushing blades 8 are rotatably arranged between two adjacent fixed plates 10 through the rotating shaft 11, so that not only can the mud blocks and the gravels be cut and crushed at multiple positions, the crushing efficiency is improved, but also the vertical direction limiting of the crushing blades 8 can be realized through the two fixed plates 10, the crushing blades 8 are prevented from being separated from the fixed plates 10 in the rotating process, and the rotating shaft 11 and the crushing blades 8 are arranged through the two fixed plates 10, so that the stress of the whole structure is more reasonable and uniform, and the condition that the single end of the rotating shaft 11 is stressed and broken due to overlarge centrifugal force of the crushing blades 8 is avoided.

In another embodiment, the number of the fixing plates 10 is plural, screw holes are formed on any one of the fixing plates 10, threads are formed at the lower end of the rotating shaft 11 so that the rotating shaft 11 can be in threaded fit with the screw holes, and annular flanges are formed at the upper end of the rotating shaft 11, so that the crushing blades 8 can be rotatably mounted on the fixing plates 10, and falling-off of the crushing blades 8 from the fixing plates 10 is avoided under the action of the annular flanges.

In an embodiment, as shown in fig. 4 and 6, the number of crushing blades 8 is plural, and the plurality of crushing blades 8 are arranged in a uniform array along the center of the fixing plate 10. It can be appreciated that the efficiency of the sludge crushing and filtering device 100 for crushing the sludge and the gravel can be further improved by the plurality of crushing blades 8, and the plurality of crushing blades 8 are uniformly arranged in an array along the center of the fixing plate 10, so that the stress of the fixing plate 10 is more uniform, and the structural design is simple and reasonable.

In an embodiment, a connecting seat 13 is formed on one side of the cover plate 6 facing the inner cavity of the shell 1, a turntable 14 is rotatably installed on the connecting seat 13, a baffle 15 is arranged at the bottom of the turntable 14, the turntable 14 is installed on the connecting seat 13 by the baffle 15 through a plurality of locking pieces 16, a scraping plate 5 is connected to the outer wall of the turntable 14, and the scraping plate 5 is abutted with the filtering grid plate 12 and sleeved on the transmission shaft 9.

Specifically, as shown in fig. 3 to 5, a connection seat 13 is formed on one side of the cover plate 6 facing the inner cavity of the housing 1, a turntable 14 is rotatably mounted on the connection seat 13, a baffle 15 is arranged at the bottom of the turntable 14, a locking member 16 is selected as a stud in the prior art, the stud has the characteristics of easily available materials and convenient disassembly, and a lock hole in threaded fit with the locking member 16 is formed on the connection seat 13, so that the turntable 14 can be clamped and mounted on the connection seat 13, and the turntable 14 can rotate relative to the connection seat 13. Further, at this time, the transmission shaft 9 passes through the center of the turntable 14, thereby playing a limiting role on the turntable 14. It will be appreciated that the scraper 5 is connected to the outer wall of the turntable 14, and the scraper 5 is abutted to the filter grid 12 and sleeved on the transmission shaft 9, so that the scraper 5 is more stable in rotation under the drive of the turntable 14, and meanwhile, when the sludge on the filter plate 2 is cleaned, the accumulated sludge on the filter grid 12 can be cleaned synchronously.

In another embodiment, the turntable 14 and the baffle 15 are integrally formed, so that the assembling step between the turntable 14 and the baffle 15 is omitted, the assembling gap is avoided, the assembling error is eliminated, and the whole is easy to manufacture.

In an embodiment, as shown in fig. 3 to 4, a stirring rod 17 is disposed at a middle position close to the scraping plate 5, one end of the stirring rod 17 is connected with the scraping plate 5, and the other end of the stirring rod 17 is sleeved on the transmission shaft 9, so that the overall structural strength of the scraping plate 5 is improved, and deformation or fracture of the scraping plate 5 in the rotation process is prevented.

In one embodiment, as shown in fig. 4, slopes 18 are formed on both the blade 5 and the stirring rod 17, thereby not only facilitating the rotation of the blade 5 and the stirring rod 17, but also preventing the accumulation of mud or gravel on the blade 5 and the stirring rod 17.

In an embodiment, as shown in fig. 3 to 5, the transmission shaft 9 passes through the connection seat 13 and is connected with a transmission gear 19, the transmission gear 19 is located in the turntable 14, planetary gears 20 for meshing with the transmission gear 19 are rotatably mounted on the plurality of locking members 16, and gear teeth meshed with the planetary gears 20 are formed on the inner wall of the turntable 14, so that the turntable 14 can rotate relative to the connection seat 13.

It can be understood that the rotation speed of the scraper 5 can be reduced through the planetary gear 20 deceleration principle, so that the damage of the parts such as the filter plate 2, the filter grid plate 12 and the like caused by the too high rotation speed of the scraper 5 can be prevented, the torque can be increased, the sludge pushing and scraping effect of the scraper 5 can be improved, namely, the transmission gear 19 is regarded as a sun gear or a center wheel, the transmission gear 19 drives the three planetary gears 20 to rotate, and at the moment, the three planetary gears 20 only rotate in situ under the action of the locking piece 16 and synchronously drive the turntable 14 to rotate, so that the deceleration motion of the turntable 14 relative to the transmission shaft 9 is realized, and the structural design is ingenious and reasonable.

In an embodiment, as shown in fig. 3 to 5, the number of the scrapers 5 is plural, and the plurality of scrapers 5 are uniformly arranged in an array along the center line of the turntable 14, so that the sludge on the filter plate 2 and the filter grid plate 12 can be cleaned in multiple points, the filter plate 2 is prevented from being blocked due to excessive accumulation of mud and gravel, and the cleaning efficiency of the filter plate 2 is improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a mud is broken and filter equipment, its characterized in that, including casing (1), broken subassembly and set up in filter (2) in casing (1), be formed with feed inlet (3) and discharge gate (4) on casing (1), broken subassembly sets up in feed inlet (3) department and is used for smashing mud clod and gravel, filter (2) are located broken subassembly with between casing (1) chamber wall and be used for filtering mud fragment, be connected with scraper blade (5) on the broken subassembly, just scraper blade (5) with filter (2) butt, so that scraper blade (5) are scraped mud fragment on filter (2).

2. The sludge crushing and filtering device according to claim 1, characterized in that the top of the housing (1) is detachably connected with a cover plate (6) for closing the inner cavity of the housing (1), the crushing assembly comprises a motor (7) and crushing blades (8) for cutting sludge blocks, the motor (7) is vertically arranged on the cover plate (6), an output shaft of the motor (7) extends into the housing (1) and is connected with a transmission shaft (9), a fixed plate (10) is sleeved on the transmission shaft (9), and the crushing blades (8) are rotatably mounted on the fixed plate (10) through a rotating shaft (11).

3. The sludge crushing and filtering device according to claim 2, wherein a filtering grid plate (12) is arranged in the shell (1) at a position close to the discharge hole (4), a through hole for the transmission shaft (9) to pass through is formed in the filtering grid plate (12), and the transmission shaft (9) is rotationally connected with the through hole.

4. A sludge crushing and filtering device according to claim 3, characterized in that the number of the fixing plates (10) is plural, the plural fixing plates (10) are arranged at uniform intervals along the extending direction of the transmission shaft (9), and the crushing blades (8) are installed between two adjacent fixing plates (10).

5. A sludge crushing and filtering device according to claim 4, characterized in that the number of crushing blades (8) is plural, and that a plurality of the crushing blades (8) are arranged in a uniform array along the center of the fixing plate (10).

6. The sludge crushing and filtering device according to claim 5, wherein a connecting seat (13) is formed on one side of the cover plate (6) facing the inner cavity of the shell (1), a rotary table (14) is rotatably installed on the connecting seat (13), a baffle (15) is arranged at the bottom of the rotary table (14), the baffle (15) is used for installing the rotary table (14) on the connecting seat (13) through a plurality of locking pieces (16), the scraping plate (5) is connected on the outer wall of the rotary table (14), and the scraping plate (5) is abutted with the filtering grid plate (12) and sleeved on the transmission shaft (9).

7. The sludge crushing and filtering device according to claim 6, wherein a stirring rod (17) is arranged near the middle of the scraper (5), one end of the stirring rod (17) is connected with the scraper (5), and the other end of the stirring rod (17) is sleeved on the transmission shaft (9).

8. A sludge crushing and filtering device according to claim 7, characterized in that the scraper (5) and the stirring rod (17) are formed with slopes (18).

9. A sludge crushing and filtering device according to claim 6, characterized in that the transmission shaft (9) passes through the connection seat (13) and is connected with a transmission gear (19), the transmission gear (19) is located in the rotary table (14), a plurality of locking pieces (16) are respectively rotatably provided with planetary gears (20) for meshing with the transmission gear (19), and gear teeth meshed with the planetary gears (20) are formed on the inner wall of the rotary table (14) so that the rotary table (14) can rotate relative to the connection seat (13).

10. A sludge crushing and filtering device according to claim 9, characterized in that the number of scrapers (5) is plural, and that a plurality of the scrapers (5) are arranged in a uniform array along the center line of the turntable (14).