Gravity type slurry filtering device

Abstract

The utility model provides a gravity type slurry filtering device. The settling device comprises a settling pond, a muck pond, a slurry frame support, a transfer mechanism erected above the slurry frame support and a plurality of groups of slurry storage frames, the slurry frame support is erected above a pond opening of the settling pond, and a plurality of separation cavities matched with the slurry storage frames are formed in the slurry frame support; the mud storage frame comprises a net rack type frame body and a water permeable membrane layer arranged on the inner wall of the net rack type frame body, the mud storage frame is arranged in a separation cavity of the mud frame support and erected at a cavity opening of the separation cavity through supporting rods at the two ends, a mud inlet and a lifting lug are arranged on a top supporting plate, and a bottom plate of the net rack type frame body is an openable bottom plate; according to the utility model, slurry can be added into the sedimentation frame to be filtered by utilizing a self-weight separation principle, and filtered water flows into the sedimentation tank; and a transfer mechanism is also arranged in a matched manner, so that residual slag after precipitation and filtration can be conveniently transferred to a slag pool to enter a next process.

Description

Technical Field

[0001] The utility model belongs to the field of mud filtering, in particular to a gravity type mud filtering device. Background Art

[0002] With the rapid development of my country's urbanization level, the process of urban construction is accelerating, and the requirements for green environmental protection are getting higher and higher. The existing mud treatment is based on the three reaction principles of physical adsorption, chemical reaction, and biological reaction to treat mud. Common mud treatment methods include sedimentation, dehydration, filtration, etc. These methods generally use separation equipment, filter presses, centrifuges, etc. to treat mud, aiming to separate solid particles and liquids in the mud, so as to recycle the liquid part and reduce the impact of solid waste on the environment. The various existing mud treatment processes have unique characteristics, but also have many disadvantages, such as small applicable stratum range, high mud treatment cost, large space occupation and other defects. Summary of the invention

[0003] The utility model provides a gravity-type mud filtering device in view of the defects of the prior art. The device adopts the principle of self-weight separation to add mud into a sedimentation plate frame for filtering. The filtered water flows into a water accumulation pit, and the remaining debris is transported to a designated location, which can reduce construction costs.

[0004] In order to achieve the above technical purpose, the utility model provides a gravity-type mud filtering device, the sedimentation device comprises a sedimentation tank, a slag tank, a mud frame bracket, a transfer mechanism erected above the mud frame bracket and a plurality of mud storage frames, the mud frame bracket is erected above the pool mouth of the sedimentation tank, and a plurality of compartments matching the mud storage frames are arranged on the mud frame bracket, and the cavity openings of the plurality of compartments face upward; the mud storage frame comprises a grid frame body and a water-permeable membrane layer arranged on the inner wall or the outer wall of the grid frame body, a top support plate of the grid frame body, support rods are respectively arranged at both ends of the support plate, the mud storage frame is placed in the compartment of the mud frame bracket, and is erected at the cavity opening of the compartment through the support rods at both ends, a mud inlet and a lifting lug are arranged on the support plate, and the bottom plate of the grid frame body is an openable bottom plate;

[0005] The slag pool is arranged on one side of the sedimentation tank, and the two are in the same straight line, and an integrated track is provided at the pool openings of the sedimentation tank and the slag pool; the transfer mechanism includes a portal movable frame and a lifting mechanism arranged on the portal movable frame, and the portal movable frame is erected above the mud frame bracket, and the walking mechanism at the bottom of its two supporting frames moves along the integrated track at the pool openings of the sedimentation tank and the slag pool.

[0006] The better technical solution of the utility model is as follows: slag unloading operation platforms are symmetrically arranged on both sides of the pool mouth of the slag pool, and each slag unloading operation platform is erected on the outside of the pool mouth of the slag pool through a support frame, and the height is flush with the pool mouth of the slag pool.

[0007] The preferred technical solution of the utility model is as follows: the bottom plate of the grid frame comprises a first bottom plate, a second bottom plate and a bottom plate hanging mechanism, one side of the first bottom plate and the second bottom plate are respectively hingedly connected to the bottom of the front and rear frame plates of the grid frame through hinges, and the adjacent sides of the first bottom plate and the second bottom plate are spliced ​​by mutually cooperating concave and convex clamping parts, and the clamping parts of the concave and convex clamping parts are both arc-shaped; the inner walls of the first bottom plate and the second bottom plate are both provided with a water-permeable membrane layer, and the butt joint surfaces of the water-permeable membrane layers on the two bottom plates overlap and are clamped in the concave and convex clamping parts; the bottom plate hanging mechanism is provided with two groups, which are symmetrically arranged on both sides of the bottom plate of the grid frame, and each group of the bottom plate hanging mechanism comprises a suspension wire rope, a first hanging part fixed to the side of the grid frame, a second hanging part arranged on the side of the first bottom plate and a third hanging part arranged on the side of the second bottom plate, the first hanging part, the second hanging part and the third hanging part are isosceles triangles, and the first hanging part is respectively connected to the second hanging part and the third hanging part through the suspension wire rope.

[0008] A more optimal technical solution of the utility model: the walking mechanism is a self-propelled walking mechanism, including a walking motor and walking wheels, and the walking motor controls the walking wheels to move along an integrated track.

[0009] The preferred technical solution of the utility model is as follows: the lifting mechanism is an electric hoist, and is installed on the lifting beam of the portal movable frame through an electric traveling mechanism, and a traveling track is correspondingly arranged on the lifting beam of the portal movable frame.

[0010] The better technical solution of the utility model is as follows: the mud frame bracket includes at least two rows of equidistantly arranged vertical poles and transverse support plates fixedly connected to the top of the same row of vertical poles, two adjacent transverse support plates are connected by a plurality of equally spaced connecting beams, a compartment for erecting a mud storage frame is formed between two adjacent connecting beams, and a plurality of compartments are arranged side by side and equidistantly.

[0011] The better technical solution of the utility model is as follows: a cleaning tank is provided between the sedimentation tank and the slag tank, and the three tank bodies are connected as one, and a sewage outlet is provided at the bottom of the cleaning tank; two integrated tracks are provided, which are symmetrically distributed on the top of the two side walls of the sedimentation tank and the slag tank, and the integrated track on each side extends from one end of the sedimentation tank to the other end of the slag tank.

[0012] The better technical solution of the utility model is as follows: the sedimentation tank is divided into a plurality of water storage compartments by supporting partitions, two adjacent water storage compartments are interconnected, a drain port is provided on the side of the sedimentation tank away from the slag tank, and a control valve is provided at the drain port; a mud frame bracket is arranged on the top of each water storage compartment, and a plurality of groups of mud frame brackets on the top of the water storage compartments are arranged in a rectangular row.

[0013] The better technical solution of the utility model is as follows: the inner side of the pool mouth of the slag pool is symmetrically provided with an auxiliary base for assisting the opening of the bottom plate of the grid frame, and the auxiliary base is a top block protruding upward in the middle.

[0014] A better technical solution of the utility model: the concave-convex clamping portion includes a first arc-shaped concave portion and a first arc-shaped convex portion arranged on the first base plate, and a second arc-shaped concave portion and a second arc-shaped convex portion arranged on the second base plate, the first arc-shaped convex portion is located above the second arc-shaped convex portion, and the first arc-shaped convex portion matches the second arc-shaped concave portion, and the second arc-shaped convex portion matches the first arc-shaped concave portion.

[0015] The utility model can use the principle of self-weight separation to add mud into the sedimentation frame for filtration, and the filtered water flows into the accumulation sedimentation tank; the device is also equipped with a transfer mechanism, which can conveniently transfer the remaining slag after sedimentation and filtration to the slag tank for the next process; the overall structure of the utility model greatly reduces the floor space, the amount of reagents used and the processing cost, and the economic and environmental benefits are remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0018] Figure 3 It is a front structural schematic diagram of the utility model;

[0019] Figure 4 It is a side structural schematic diagram of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the mud frame bracket in the utility model;

[0021] Figure 6 yes Figure 5 Front view of

[0022] Figure 7 yes Figure 5 Side view of;

[0023] Figure 8 This is a schematic diagram of the structure of the mud storage frame in the utility model;

[0024] Fig. 9 yes Figure 8 Schematic diagram of the frame;

[0025] Fig.10 It is a schematic diagram of the bottom plate structure of the mud storage frame in the utility model;

[0026] Fig.11 It is a schematic diagram of the cooperation between the bottom plate and the auxiliary base of the mud storage frame in the utility model.

[0027] In the figure: 1-sedimentation tank, 100-supporting partition, 101-water storage compartment, 102-drainage port, 2-sludge tank, 3-mud frame support, 300-vertical pole, 301-transverse support plate, 302-connecting beam, 4-mud storage frame, 400-grid frame, 401-permeable membrane layer, 402-top support plate, 403-mud inlet, 404-lifting ear, 405-support rod, 406-first bottom plate, 407—second base plate, 408—hinge, 409—first hanging part, 410—second hanging part, 411—third hanging part, 412—hanging wire rope, 5—integrated track, 6—compartment, 7—gantry type mobile frame, 700—traveling track, 8—hoisting mechanism, 9—first walking mechanism, 10—soil unloading operation platform, 11—support frame, 12—auxiliary base, 13—electric walking mechanism, 14—cleaning tank. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Figures 1 to 11 The drawings are all of embodiments, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the utility model. The following technical solutions shown in the drawings are specific solutions of the embodiments of the utility model and are not intended to limit the scope of the utility model to be protected. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] The embodiment provides a gravity type mud filtering device, such as Figures 1 to 11 As shown, the sedimentation device includes a sedimentation tank 1, a slag tank 2, a mud frame support 3, a transfer mechanism mounted above the mud frame support 3 and a plurality of mud storage frames 4, the slag tank 2 is arranged on one side of the sedimentation tank 1, and the two are in the same straight line, and an integrated track 5 is provided at the pool mouths of the sedimentation tank 1 and the slag tank 2; the sedimentation tank 1 is divided into a plurality of water storage compartments 101 by a supporting partition 100, and the bottoms of two adjacent water storage compartments 101 are provided with mutually connected through holes, a drain port 102 is provided on the side of the sedimentation tank 1 away from the slag tank 2, and a control valve is provided at the drain port to facilitate the discharge and recovery of filtered clean water; a mud frame support 3 is mounted on the top of each water storage compartment 101, and the mud frame supports 3 on the tops of the plurality of water storage compartments 101 are arranged in a rectangular row. The mud frame support 3 is installed at the mouth of each water storage compartment 101 of the sedimentation tank 1, and a plurality of compartments 6 matching the mud storage frame 4 are provided on the mud frame support 3, and the mouths of the plurality of compartments 6 are facing upwards, and the mud storage frame 4 is placed in the compartment 6 of the mud frame support 3; the transfer mechanism includes a gantry movable frame 7 and a lifting mechanism 8 arranged on the gantry movable frame 7, and the gantry movable frame 7 is installed above the mud frame support 3, and the first walking mechanism 9 at the bottom of the two supporting frames moves along the integrated track 5 at the mouth of the sedimentation tank 1 and the slag pool 2. The mud storage frame 4 filled with mud is lifted into each compartment 6 by the lifting mechanism 8, and after the mud is filtered, the mud storage frame 4 filled with mud residue is lifted above the slag pool 2, and the slag is discharged into the slag pool for recycling. Figures 5 to 7 As shown, the mud frame support 3 includes at least two rows of vertical poles 300 equidistantly arranged and transverse support plates 301 fixedly connected to the top of the same row of vertical poles 300, two adjacent transverse support plates 301 are connected by a plurality of connecting beams 302 equidistantly arranged, and a compartment 6 for erecting a mud storage frame 4 is formed between two adjacent connecting beams 302, and a plurality of compartments 6 are equidistantly arranged side by side; a mud storage frame 4 is placed in each compartment 6, and a plurality of mud storage frames 4 can be filtered at the same time.

[0031] The embodiment provides a gravity type mud filtering device, such as Figures 8 to 10As shown, the mud storage frame 4 includes a grid frame 400 and a water-permeable membrane layer 401 arranged on the inner wall or outer wall of the grid frame 400. The water-permeable membrane layer 401 is a permeable mud bag directly fixed in the grid frame 400, which is convenient for storing mud and filtering mud. The top support plate 402 of the grid frame 400 has support rods 405 at both ends of the support plate 402. When the mud storage frame 4 is placed in the compartment 6, the support rods 405 at both ends are erected on the cavity of the compartment 6. A mud inlet 403 and a lifting lug 404 are provided on the support plate 402. Mud is input into the mud storage frame 4 through the mud inlet 403. The lifting lug 404 facilitates the lifting mechanism 8 to lift the mud storage frame 4. There are two lifting lugs, which are symmetrically arranged on the top of the support plate 402. The bottom plate of the grid frame 400 is an openable bottom plate, which is convenient to open to discharge the mud residue out of the mud storage frame 4 .

[0032] The embodiment provides a gravity type mud filtering device, such as Figures 1 to 6 As shown, a cleaning tank 14 is provided between the sedimentation tank 1 and the slag tank 2, and the three tank bodies are connected as one. A sewage outlet is provided at the bottom of the cleaning tank 14; two integrated tracks 5 are provided, symmetrically distributed on the top of the two side walls of the sedimentation tank 1 and the slag tank 2, and the integrated track 5 on each side extends from one end of the sedimentation tank 1 to the other end of the slag tank 2. The setting of the cleaning tank 14 can facilitate the cleaning of the mud storage frame 4. After the mud storage frame 4 has been used for a period of time, it can be hoisted into the cleaning tank 14 for cleaning, and the mud covered on it can be cleaned to avoid affecting the next filtration.

[0033] In order to facilitate the opening of the bottom plate of the grid frame 400, the bottom plate structure of the grid frame 400 is as follows: Fig.10 and Fig.11As shown, it includes a first bottom plate 406, a second bottom plate 407 and a bottom plate hanging mechanism, one side of the first bottom plate 406 and the second bottom plate 407 are hingedly connected to the bottom of the front and rear frame plates of the grid frame 400 through a hinge 408 respectively, and the adjacent sides of the first bottom plate 406 and the second bottom plate 407 are spliced ​​by mutually matching concave and convex clamping parts, and the clamping parts of the concave and convex clamping parts are both arc-shaped, the inner walls of the first bottom plate 406 and the second bottom plate 407 are both provided with a water-permeable membrane layer 401, and the docking surfaces of the water-permeable membrane layers 401 on the two bottom plates overlap and are clamped in the concave and convex clamping parts; the concave and convex clamping parts include a first arc-shaped concave part and a first arc-shaped convex part arranged on the first bottom plate 406, a second arc-shaped concave part and a second arc-shaped convex part arranged on the second bottom plate 407, the first arc-shaped convex part is located above the second arc-shaped convex part, and the first arc-shaped convex part matches the second arc-shaped concave part, and the second arc-shaped convex part matches the first arc-shaped concave part. When the two bottom plates are spliced, the first arc-shaped convex part is located above the second arc-shaped convex part, and the first arc-shaped convex part is embedded in the second arc-shaped concave part, and the second convex part is embedded in the first arc-shaped concave part. The overlapping water-permeable membrane layer 401 passes through the joint gap of the two bottom plates and is clamped between the two bottom plates. Under the action of the bottom plate hanging mechanism, the two bottom plates are in the same plane to support the mud in the grid frame 400.

[0034] The embodiment provides a gravity type mud filtering device, such as Figures 9 to 11 As shown, the bottom plate hanging mechanism is provided with two groups, which are symmetrically arranged on both sides of the bottom plate of the grid frame 400, and each group of bottom plate hanging mechanism includes a suspension wire rope 412, a first hanging part 409 fixed to the side of the grid frame 400, a second hanging part 410 arranged on the side of the first bottom plate 406, and a third hanging part 411 arranged on the side of the second bottom plate 407. The first hanging part 409, the second hanging part 410 and the third hanging part 411 are isosceles triangles, and the first hanging part 409 is connected to the second hanging part 410 and the third hanging part 411 respectively through the suspension wire rope 412. The first bottom plate 406 and the second bottom plate 407 can be suspended by two suspension wire ropes 412 to support the mud. In order to enable the bottom plate of the mud storage frame 4 to automatically open and discharge the slag when it is hoisted above the slag pool 2, an auxiliary base 12 for assisting the bottom plate of the grid frame 400 to open is symmetrically provided on the inner side of the pool opening of the slag pool 2. The auxiliary base 12 is a top block protruding upward in the middle; Fig.11As shown, the raised part in the middle of the auxiliary base 12 just hits the joint of the two bottom plates. When the lifting mechanism drives the mud storage frame 4 to move downward, the auxiliary bases 12 on both sides will push the bottom plate open and automatically discharge the mud residue. The slag unloading operation platform 10 is symmetrically arranged on both sides of the pool opening of the slag pool 2. Each slag unloading operation platform 10 is erected on the outside of the pool opening of the slag pool 2 through a support frame 11, and the height is flush with the pool opening of the slag pool. Construction workers can stand on the slag unloading operation platform 10 to assist in the discharge of slag.

[0035] The first traveling mechanism 9 in the embodiment is a self-propelled traveling mechanism, which can directly adopt the existing electric-controlled driving wheel, including a traveling motor and a traveling wheel, and the traveling motor controls the traveling wheel to travel along the integrated track 5. The lifting mechanism 8 is an electric hoist, and other existing lifting equipment can also be adopted, and is installed on the lifting beam of the portal mobile frame 7 through the electric traveling mechanism, and the lifting beam of the portal mobile frame 7 is correspondingly provided with a traveling track 700.

[0036] The utility model can realize automatic one-time slurry addition. After the slurry is precipitated, the slurry is continuously added to the slurry storage frame 4 until the precipitated and solidified slurry fills the slurry storage frame 4. Then, the lifting mechanism 8 is used to lift the frame to the outside of the precipitation area for unloading.

[0037] The working process of the utility model is as follows: first, the mud storage frame 4 is lifted into the compartment 6 corresponding to the mud frame support 3 by the lifting mechanism 8, and it is set up in the compartment 6, and then the mud is input into the mud storage frame 4 through the mud inlet 403. After the mud storage frame 4 is filled, the mud in the mud storage frame 4 will be filtered and precipitated under the action of gravity, and the filtered water will directly flow into the sedimentation tank 1. The mud injection process in the utility model can be injected through other auxiliary equipment or manually; the solid mud after filtering and precipitation will remain in the mud storage frame 4, and then the mud storage frame 4 is lifted by the lifting mechanism and moved along the integrated track 5 to the top of the slag pool 2, and then it is lowered to the auxiliary base 12 by the lifting mechanism. During the lowering process, the auxiliary base 12 will push open the bottom plate of the mud storage frame 4 and discharge the solidified mud slag into the slag pool 2. The overall processing of the utility model is simple and the lifting is convenient. During the working process, the construction personnel can stand on the slag unloading operation platform 9 to assist in unloading the solidified mud.

[0038] In summary, the above is only one embodiment of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A gravity type mud filtering device, characterized in that: The filtering device comprises a sedimentation tank (1), a slag tank (2), a mud frame support (3), a transfer mechanism mounted above the mud frame support (3), and a plurality of mud storage frames (4); the mud frame support (3) is mounted above the pool opening of the sedimentation tank (1), and a plurality of compartments (6) matching the mud storage frames (4) are provided on the mud frame support (3), and the cavity openings of the plurality of compartments (6) face upwards; the mud storage frame (4) comprises a grid frame body (400) and a A water-permeable membrane layer (401) is provided on the inner wall or the outer wall; a top support plate (402) of the grid frame (400); support rods (405) are provided at both ends of the support plate (402); the mud storage frame (4) is placed in the compartment (6) of the mud frame support (3) and is mounted on the cavity opening of the compartment (6) through the support rods (405) at both ends; a mud inlet (403) and a lifting lug (404) are provided on the support plate (402); and the bottom plate of the grid frame (400) is an openable bottom plate; The slag pool (2) is arranged on one side of the sedimentation pool (1), and the two are in the same straight line, and an integrated track (5) is provided at the pool openings of the sedimentation pool (1) and the slag pool (2); the transfer mechanism comprises a portal movable frame (7) and a lifting mechanism (8) arranged on the portal movable frame (7), the portal movable frame (7) being erected above the mud frame support (3), and a first walking mechanism (9) at the bottom of the two support frames thereof moving along the integrated track (5) at the pool openings of the sedimentation pool (1) and the slag pool (2).

2. A gravity type mud filtering device according to claim 1, characterized in that: Muck unloading operation platforms (10) are symmetrically arranged on both sides of the pool opening of the muck pool (2); each muck unloading operation platform (10) is erected on the outside of the pool opening of the muck pool (2) via a support frame (11) and is flush with the pool opening of the muck pool.

3. A gravity type mud filtering device according to claim 1 or 2, characterized in that: The bottom plate of the grid frame (400) comprises a first bottom plate (406), a second bottom plate (407) and a bottom plate hanging mechanism; one side of the first bottom plate (406) and the second bottom plate (407) are respectively hingedly connected to the bottom of the front and rear frame plates of the grid frame (400) through hinges (408); the adjacent sides of the first bottom plate (406) and the second bottom plate (407) are spliced ​​through mutually matching concave and convex clamping parts, and the clamping parts of the concave and convex clamping parts are both arc-shaped; the inner walls of the first bottom plate (406) and the second bottom plate (407) are both provided with a water-permeable membrane layer (401), and the butt joint surfaces of the water-permeable membrane layers (401) on the two bottom plates overlap and are clamped on the concave and convex clamping parts. The bottom plate hanging mechanism is provided with two groups, which are symmetrically arranged on both sides of the bottom plate of the grid frame (400), each group of the bottom plate hanging mechanism comprises a hanging wire rope (412), a first hanging part (409) fixed to the side of the grid frame (400), a second hanging part (410) arranged on the side of the first bottom plate (406), and a third hanging part (411) arranged on the side of the second bottom plate (407), the first hanging part (409), the second hanging part (410) and the third hanging part (411) being an isosceles triangle, and the first hanging part (409) is connected to the second hanging part (410) and the third hanging part (411) respectively through the hanging wire rope (412).

4. A gravity type mud filtering device according to claim 1 or 2, characterized in that: The first walking mechanism (9) is a self-propelled walking mechanism, comprising a walking motor and walking wheels, and the walking motor controls the walking wheels to move along the integrated track (5).

5. A gravity type mud filtering device according to claim 1 or 2, characterized in that: The lifting mechanism (8) is an electric hoist and is installed on a lifting beam of the portal movable frame (7) via an electric travel mechanism (13), and a travel track (700) is correspondingly provided on the lifting beam of the portal movable frame (7).

6. A gravity type mud filtering device according to claim 1 or 2, characterized in that: The mud frame support (3) comprises at least two rows of equidistantly arranged vertical poles (300) and transverse support plates (301) fixedly connected to the tops of the vertical poles (300) in the same row, two adjacent transverse support plates (301) are connected by a plurality of equally spaced connecting beams (302), a compartment (6) for erecting a mud storage frame (4) is formed between two adjacent connecting beams (302), and a plurality of compartments (6) are arranged side by side and at equal distances.

7. A gravity type mud filtering device according to claim 1 or 2, characterized in that: The sedimentation tank (1) is divided into a plurality of water storage compartments (101) by a supporting partition (100), and two adjacent water storage compartments (101) are interconnected. A liquid discharge port (102) is provided on a side of the sedimentation tank (1) away from the slag pool (2), and a control valve is provided at the liquid discharge port. A mud frame support (3) is provided on the top of each water storage compartment (101), and the mud frame supports (3) on the tops of the plurality of water storage compartments (101) are arranged in a rectangular row.

8. A gravity type mud filtering device according to claim 1 or 2, characterized in that: A cleaning tank (14) is provided between the sedimentation tank (1) and the slag tank (2), and the three tank bodies are connected as one. A sewage outlet is provided at the bottom of the cleaning tank (14). Two integrated rails (5) are provided, which are symmetrically distributed on the tops of the two side walls of the sedimentation tank (1) and the slag tank (2), and the integrated rails (5) on each side extend from one end of the sedimentation tank (1) to the other end of the slag tank (2).

9. A gravity type mud filtering device according to claim 3, characterized in that: An auxiliary base (12) for assisting the opening of the bottom plate of the grid-type frame (400) is symmetrically arranged on the inner side of the pool opening of the slag pool (2); the auxiliary base (12) is a top block protruding upward in the middle.

10. The gravity type mud filtering device according to claim 3, characterized in that: The concave-convex clamping portion comprises a first arc-shaped concave portion and a first arc-shaped convex portion arranged on the first bottom plate (406), and a second arc-shaped concave portion and a second arc-shaped convex portion arranged on the second bottom plate (407), wherein the first arc-shaped convex portion is located above the second arc-shaped convex portion, and the first arc-shaped convex portion matches the second arc-shaped concave portion, and the second arc-shaped convex portion matches the first arc-shaped concave portion.

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