A fully enclosed multi-stage sedimentation underground mud pool device and construction method

Abstract

The present application discloses a fully enclosed multi-stage sedimentation underground mud pool device and construction method, which includes a primary sedimentation tank, a secondary sedimentation tank, a filter frame, a first filter structure, a second filter structure and a lifting mechanism, wherein the primary sedimentation tank and the secondary sedimentation tank are arranged side by side, a drainage groove is provided on one side of the primary sedimentation tank close to the secondary sedimentation tank, and the drainage groove is located higher than the secondary sedimentation tank; the first filter structure is laid on the inner bottom wall of the filter frame; the second filter structure is detachably connected to the filter frame, and the second filter structure is used to cover the surface of debris at the first filter structure, and the debris is sandwiched between the first filter structure and the second filter structure to form a filter layer; the lifting mechanism is used to drive the filter frame to move up and down, and when the filter frame moves down, the filter layer performs filter pressing on the mud in the primary sedimentation tank. The present application is conducive to improving the efficiency of mud preparation and reducing the probability of blockage of the sewage pipe and the filter structure.

Description

Technical Field

[0001] The present application relates to the field of mud preparation, and in particular to a fully enclosed multi-stage sedimentation underground mud pool device and a construction method. Background Art

[0002] The fully enclosed multi-stage sedimentation underground mud pool is an engineering facility for processing and storing mud. The mud is gradually processed through multiple sedimentation areas. In each sedimentation area, the solid particles in the mud will gradually settle due to gravity, thereby achieving solid-liquid separation. The settled sludge is discharged through a suction pump, and the upper mud liquid overflows to the next sedimentation area. Through multi-stage sedimentation, the clarity of the mud can be significantly improved, reducing the difficulty and cost of subsequent treatment.

[0003] Regarding the above-mentioned related technologies, there are the following defects: due to the long sedimentation time of the mud, the efficiency of mud preparation is reduced, and when the mud is first discharged into the sedimentation tank, a large amount of garbage is mixed inside it, which easily blocks the filter structure and the sewage pipe, making it very troublesome to handle, so there is still room for improvement. Summary of the invention

[0004] In order to improve the efficiency of mud preparation and reduce the probability of blockage of sewage pipes and filtration structures, the present application provides a fully enclosed multi-stage sedimentation underground mud pool device and a construction method.

[0005] The present application provides a fully enclosed multi-stage sedimentation underground mud pool device and construction method using the following technical solutions:

[0006] A fully enclosed multi-stage sedimentation underground mud pool device, comprising:

[0007] A primary sedimentation tank and a secondary sedimentation tank, wherein the primary sedimentation tank and the secondary sedimentation tank are arranged side by side, a drainage groove is provided on one side of the primary sedimentation tank close to the secondary sedimentation tank, and the drainage groove is located higher than the secondary sedimentation tank;

[0008] A filter frame, wherein the filter frame is arranged in the primary sedimentation tank and has an upper end opening;

[0009] A first filtering structure, which is laid on the inner bottom wall of the filtering frame and is used to filter debris in the mud;

[0010] A second filter structure, the second filter structure is detachably connected to the filter frame, the second filter structure is used to cover the surface of the debris at the first filter structure, and the debris is sandwiched between the first filter structure and the second filter structure to form a filter layer;

[0011] The lifting mechanism is used to drive the filter frame to move up and down. When the filter frame moves down, the first filter structure, the second filter structure and the filter layer formed by the debris perform pressure filtering on the mud in the primary sedimentation tank.

[0012] By adopting the above technical scheme, the filter frame serves as the supporting structure of the first filter structure. By pouring the mud into the filter frame, the first filter structure filters out the garbage and debris in the mud, which is beneficial to reducing the probability of blockage of the sewage pipe. After a large amount of garbage is spread on the surface of the first filter structure, the second filter structure is then covered on the surface of the garbage, and the second filter structure is installed in the filter frame, thereby compacting the debris to form a filter layer with smaller pores. The filter frame is then driven downward as a whole by the lifting mechanism, and the filter layer presses the mud downward, thereby improving the efficiency of solid-liquid separation of the mud. Among them, by using garbage and debris as the main filtering structure of the filter layer, the garbage can be directly cleaned up after the initial filtration step is completed, and a new filter layer can continue to be constructed in the next filtration, thereby improving the problem of difficult cleaning of the filter holes of the conventional filter structure; the upper layer of mud can be directly discharged into the secondary sedimentation tank through the discharge chute, thereby improving the transfer efficiency of the mud in the primary sedimentation tank and the secondary sedimentation tank, which is beneficial to improving the mud preparation efficiency.

[0013] Preferably, the first filter structure includes a first screen laid on the bottom wall of the filter frame and two driving mechanisms arranged on the top of the filter frame, the driving mechanisms are placed on both sides of the filter frame, and the two ends of the first screen are respectively connected to the two driving mechanisms, and the driving mechanisms are used to roll up or release the first screen.

[0014] By adopting the above technical solution, one driving mechanism is used to release the first screen, and another driving mechanism is used to reel in the first screen, and the two are performed alternately, so that the first screen can be moved back and forth at the filter frame, so as to screen out the debris and keep it in a relatively dense state, which is beneficial to improving the filtration effect of the filter layer.

[0015] Preferably, two guide rods are detachably connected in the filter frame, the two guide rods are close to the inner bottom wall of the filter frame and are disposed on both sides of the filter frame, and the first screen is inserted into the gap between the guide rods and the inner bottom wall of the filter frame.

[0016] By adopting the above technical solution, the guide rod plays a limiting role to limit the first screen to the inner bottom wall of the filter frame. In conjunction with the two driving mechanisms, the horizontal reciprocating movement of the first screen at the inner bottom wall of the filter frame is achieved, making it easy to quickly screen out garbage and debris.

[0017] Preferably, the second filtering structure comprises a mounting frame and a second screen disposed in the mounting frame, and two limiting rods are detachably connected in the filtering frame, and the two limiting rods are located above the mounting frame.

[0018] By adopting the above technical solution, a flexible second screen and a mounting frame with a rigid structure are used to easily cover the garbage below, thereby improving the fit between the second filter structure and the garbage, which is beneficial to maintaining the compactness of the garbage.

[0019] Preferably, the lifting mechanism includes a plurality of cylinders symmetrically distributed on both sides of the filter frame, the cylinders are vertically embedded in the side wall of the primary sedimentation tank, the top of the filter frame is provided with an outer edge protrusion, and the piston rod of the cylinder is fixedly connected to the outer edge protrusion.

[0020] By adopting the above technical solution, the overall lifting function of the filter frame is realized through the synchronous extension and contraction of several cylinders, which facilitates the implementation of the filter pressing step and the garbage cleaning step.

[0021] Preferably, a gate is slidably connected to the drainage channel, and the primary sedimentation tank is provided with a driving member, and the driving member is used to drive the gate to block or open the drainage channel.

[0022] By adopting the above technical solution, when the gate closes the drainage channel, the primary sedimentation tank is in a storage state to increase the capacity of the primary sedimentation tank. When the gate opens the drainage channel, the filtered mud can be discharged to facilitate mud preparation.

[0023] Preferably, the secondary sedimentation tank is covered with a third screen, the third screen is inclined, and the inclined upper end of the third screen is located below the drainage channel.

[0024] By adopting the above technical solution, the third screen further filters the mud discharged from the drainage trough, which is beneficial to further improve the clarity of the mud.

[0025] A construction method for a fully enclosed multi-stage sedimentation underground mud pool device comprises the following steps:

[0026] S1: Pour the mud into the filter frame, and the first filter structure filters the mud and screens out the debris in the mud;

[0027] S2: When the first filter structure is covered with debris, the second filter structure is placed in the filter frame, the second filter structure covers the surface of the debris at the first filter structure, the debris is sandwiched between the first filter structure and the second filter structure to form a filter layer, and then the second filter structure is fixed;

[0028] S3: The lifting mechanism drives the filter frame to move downward as a whole, and the filter layer formed by the first filter structure, the second filter structure and the debris performs filter pressure on the sludge in the primary sedimentation tank;

[0029] S4: The drainage trough is opened, and the upper layer of mud is discharged into the secondary sedimentation tank through the drainage trough, and the mud completes the sedimentation step in the secondary sedimentation tank.

[0030] By adopting the above technical solution, the first filter structure, the second filter structure and debris are used to form a filter layer with smaller pores, and the filter frame is driven downward as a whole through the lifting mechanism to realize the filter pressing action, thereby improving the efficiency of mud solid-liquid separation, which is beneficial to improving the mud preparation efficiency.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The filter frame is used as the supporting structure of the first filter structure. The first filter structure filters out garbage and debris in the mud, which can reduce the probability of blockage of the sewage pipe. The second filter structure is covered on the surface of the garbage and installed in the filter frame to compact the debris to form a filter layer with smaller pores. Then, the filter frame is driven downward as a whole by the lifting mechanism, and the filter layer presses the mud downward, thereby improving the efficiency of solid-liquid separation of the mud. Since the garbage can be cleaned directly, a new filter layer will continue to be constructed in the next filtration, which is conducive to improving the problem of difficult cleaning of the filter holes in the conventional filter structure;

[0033] 2. Release the first screen through one driving mechanism, and reel in the first screen through another driving mechanism, and perform the operations alternately, so as to realize the first screen to move back and forth at the filter frame, so as to screen out the debris and keep it in a relatively dense state, which is beneficial to improve the filtration effect of the filter layer;

[0034] 3. By detachably connecting the two guide rods in the filter frame and cooperating with the two driving mechanisms, the horizontal reciprocating movement of the first screen at the bottom wall of the filter frame is achieved, which is convenient for quickly screening out garbage and debris. When cleaning the garbage, the guide rods can be directly removed, and the two driving mechanisms can simultaneously reel in the first screen to achieve overall upward movement, which is convenient for cleaning the garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of a fully enclosed multi-stage sedimentation underground mud pool device according to an embodiment of the present application.

[0036] Figure 2 It is a schematic diagram of the internal structure of a primary sedimentation tank and a filter frame in a fully enclosed multi-stage sedimentation underground mud tank device in an embodiment of the present application.

[0037] Explanation of the reference numerals: 1. primary sedimentation tank; 11. drainage chute; 12. vertical slide; 2. secondary sedimentation tank; 3. filter frame; 31. grille hole; 32. guide rod; 33. limit rod; 34. outer edge protrusion; 4. lifting mechanism; 5. first filter structure; 51. drive mechanism; 511. motor; 512. take-up drum; 52. first screen; 6. second filter structure; 7. gate; 8. drive member; 81. traction rope; 9. third screen; 10. filter layer. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-2 This application is described in further detail.

[0039] The present application embodiment discloses a fully enclosed multi-stage sedimentation underground mud pool device, referring to Figure 1 and Figure 2 ,include:

[0040] The primary sedimentation tank 1 and the secondary sedimentation tank 2 are both concrete structures with an opening at the upper end, wherein the top surface of the primary sedimentation tank 1 is higher than the top surface of the secondary sedimentation tank 2. The primary sedimentation tank 1 and the secondary sedimentation tank 2 are arranged side by side, wherein a drainage groove 11 is provided on the side of the primary sedimentation tank 1 close to the secondary sedimentation tank 2, and the drainage groove 11 is located higher than the top surface of the secondary sedimentation tank 2. In this embodiment, in order to facilitate the opening and closing of the drainage groove 11, a gate 7 is slidably connected to the drainage groove 11, and a vertical slide groove 12 is provided on the inner bottom wall of the drainage groove 11. When the drainage groove 11 is in an open state, the main part of the gate 7 is accommodated in the vertical slide groove 12. In addition, two driving members 8 are installed on the top surface of the primary sedimentation tank 1, and the two driving members 8 are respectively placed on both sides of the drainage groove 11. The driving member 8 is specifically a winch, and a traction rope 81 of the winch is fixedly connected to the top surface of the gate 7 . When the drainage channel 11 is closed, the traction rope 81 is rolled up by the winch to drive the gate 7 to block the drainage channel 11 .

[0041] The filter frame 3 is a cubic frame structure with an open top in this embodiment, and a plurality of grille holes 31 are evenly arranged around the periphery and bottom wall of the filter frame 3. The filter frame 3 is sunken and arranged in the primary sedimentation tank 1.

[0042] The first filter structure 5, in this embodiment, is used to filter the debris in the mud. The first filter structure 5 includes a first screen 52 laid on the inner bottom wall of the filter frame 3 and two drive mechanisms 51 installed on the top of the filter frame 3. The drive mechanisms 51 are placed on both sides of the filter frame 3. The two ends of the first screen 52 extend to the top of the filter frame 3 and are respectively connected to the two drive mechanisms 51. The drive mechanisms 51 are used to roll up or release the first screen 52. One drive mechanism 51 releases the first screen 52, and the other drive mechanism 51 rolls up the first screen 52, and they are performed alternately to drive the first screen 52 to move back and forth at the inner bottom wall of the filter frame 3, so as to sieve out the debris and keep it in a relatively dense state. In addition, two mutually parallel guide rods 32 are detachably connected in the filter frame 3. The two guide rods 32 are located close to the inner bottom wall of the filter frame 3 and are placed on both sides of the filter frame 3. The first screen 52 is horizontally inserted in the gap between the guide rod 32 and the inner bottom wall of the filter frame 3. The two ends of the first screen 52 pass through the gap between the guide rod 32 and the inner side wall of the filter frame 3. The guide rod 32 plays a limiting role to limit the first screen 52 at the inner bottom wall of the filter frame 3. With the two driving mechanisms 51, the horizontal reciprocating movement of the first screen 52 at the inner bottom wall of the filter frame 3 is realized, which is convenient for quickly screening garbage and debris. In this embodiment, the two ends of the guide rod 32 are respectively inserted into the grille holes 31 on both sides of the filter frame 3, which has the function of facilitating assembly and disassembly.

[0043] The second filter structure 6, in this embodiment, includes a mounting frame and a second screen disposed in the mounting frame, the second screen covers the surface of the debris at the first filter structure 5, and compresses the debris, the debris is sandwiched between the first screen 52 and the second screen to form a filter layer 10. The pores of the filter layer 10 are smaller than the sieve holes of the first screen 52, and two horizontally arranged limit rods 33 are detachably connected in the filter frame 3. The two limit rods 33 are located at the same height and simultaneously press against the upper surface of the mounting frame to maintain a stable filter layer 10, wherein the two ends of the limit rods 33 are horizontally inserted into the grille holes 31 on both sides of the filter frame 3, and the limit rods 33 are easy to assemble and disassemble, thereby achieving the purpose of detachable connection of the second filter structure 6.

[0044] The lifting mechanism 4 is used to drive the filter frame 3 to move up and down. In this embodiment, the lifting mechanism 4 includes a plurality of cylinders symmetrically distributed on both sides of the filter frame 3, and the cylinders are vertically embedded in the top of the side wall of the primary sedimentation tank 1. A horizontally arranged outer edge protrusion 34 is fixed on the top of the filter frame 3, and the piston rod of the cylinder is fixedly connected to the lower surface of the outer edge protrusion 34. The filter frame 3 is driven downward by the cylinder to drive the first filter structure 5, the second filter structure 6 and the filter layer 10 formed by the debris to filter the mud in the primary sedimentation tank 1.

[0045] In this embodiment, the secondary sedimentation tank 2 is covered with a third screen 9, which is arranged obliquely, and the inclined upper end of the third screen 9 is hooked and fixed below the drainage groove 11. The third screen 9 further filters the mud discharged from the drainage groove 11, which is conducive to further improving the mud clarity.

[0046] In this embodiment, the driving mechanism 51 includes a motor 511 and a winding drum 512 coaxially connected to the conveying shaft of the motor 511, and the winding drum 512 is horizontally rotatably connected to the top of the filter frame 3. The winding drum 512 is fixedly connected to the end of the first screen 52, and the winding drum 512 is driven to rotate by the motor 511, thereby realizing the winding and release of the first screen 52.

[0047] The present application also discloses a construction method of a fully enclosed multi-stage sedimentation underground mud pool device, comprising the following steps:

[0048] S1: Pour the mud into the filter frame 3, and the first screen 52 filters the mud and sifts out the debris in the mud. During the mud pouring process, the motors 511 of the two driving mechanisms 51 are started at the same time, and the winding drum 512 of one driving mechanism 51 releases the first screen 52, and the winding drum 512 of the other driving mechanism 51 winds up the first screen 52, and they are performed alternately, so as to drive the first screen 52 to move back and forth at the filter frame 3, so as to sift out the debris on the first screen 52 and keep it in a relatively dense state.

[0049] S2: When the first screen 52 is covered with debris, the second filter structure 6 is placed in the filter frame 3, the second screen of the second filter structure 6 covers the surface of the debris at the first filter structure 5, the second filter structure 6 presses the debris downward, and then the limiting rods 33 are inserted into the grille holes 31 on both sides of the filter frame 3 in sequence, and the two limiting rods 33 are pressed against the upper surface of the installation frame at the same time, and the debris is sandwiched between the first screen 52 and the second screen to form a filter layer 10. The pores of the filter layer 10 are smaller than the pores of the first screen 52, and the pores of the second screen are smaller than the pores of the filter layer 10.

[0050] S3: Several cylinders are contracted at the same time to drive the filter frame 3 to move downward as a whole, and the first filter structure 5, the second filter structure 6 and the filter layer 10 formed by the debris filter the mud in the primary sedimentation tank 1, thereby accelerating the efficiency of the solid-liquid separation of the mud. Then the cylinder is extended to lift the filter frame 3 out of the primary sedimentation tank 1, and then the limit rod 33 and the guide rod 32 are pulled out at the same time, and the two drive mechanisms 51 are started. The two drive mechanisms 51 simultaneously roll up the first screen 52, and the first screen 52 moves up, and at the same time, the garbage and the second screen are lifted to the top of the filter frame 3, so that it is convenient for the staff to clean the garbage on the first screen 52, and then re-lay the first screen 52, and repeat S1 to S3 until the mud liquid level reaches the drainage groove 11.

[0051] S4: Start the driving member 8, the gate 7 moves downward under its own gravity and opens the drainage channel 11, and the upper mud is discharged into the secondary sedimentation tank 2 through the drainage channel 11. In this embodiment, the mesh of the third screen 9 is smaller than the mesh of the second screen, and the third screen 9 further filters the mud discharged from the drainage channel 11, which is conducive to further improving the mud clarity. The mud completes the sedimentation step in the secondary sedimentation tank 2. During the sedimentation process of the mud, the opening of the secondary sedimentation tank 2 can be covered and closed with a blocking cloth to reduce the probability of fallen leaves and the like falling into the mud.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully enclosed multi-stage sedimentation underground mud pool device, characterized in that: include: A primary sedimentation tank (1) and a secondary sedimentation tank (2), wherein the primary sedimentation tank (1) and the secondary sedimentation tank (2) are arranged side by side, a drainage groove (11) is provided on a side of the primary sedimentation tank (1) close to the secondary sedimentation tank (2), and the drainage groove (11) is located higher than the secondary sedimentation tank (2); A filter frame (3), wherein the filter frame (3) is arranged in the primary sedimentation tank (1) and has an upper end opening; A first filtering structure (5), the first filtering structure (5) being laid on the inner bottom wall of the filtering frame (3), and the first filtering structure (5) being used to filter impurities in the mud; a second filter structure (6), the second filter structure (6) being detachably connected to the filter frame (3), the second filter structure (6) being used to cover the surface of debris at the first filter structure (5), the debris being sandwiched between the first filter structure (5) and the second filter structure (6) to form a filter layer (10); A lifting mechanism (4), the lifting mechanism (4) is used to drive the filter frame (3) to move up and down, when the filter frame (3) moves down, the first filter structure (5), the second filter structure (6) and the filter layer (10) formed by the debris perform pressure filtration on the sludge in the primary sedimentation tank (1); The first filtering structure (5) comprises a first screen (52) laid on the inner bottom wall of the filtering frame (3) and two driving mechanisms (51) arranged on the top of the filtering frame (3), the driving mechanisms (51) being arranged on both sides of the filtering frame (3), the two ends of the first screen (52) being respectively connected to the two driving mechanisms (51), and the driving mechanisms (51) being used to roll up or release the first screen (52); Two guide rods (32) are detachably connected in the filter frame (3), the two guide rods (32) are close to the inner bottom wall of the filter frame (3) and are respectively arranged on both sides of the filter frame (3), and the first screen (52) is inserted into the gap between the guide rods (32) and the inner bottom wall of the filter frame (3); The second filtering structure (6) comprises a mounting frame and a second screen arranged in the mounting frame. Two limiting rods (33) are detachably connected in the filtering frame (3), and the two limiting rods (33) are located above the mounting frame.

2. A fully enclosed multi-stage sedimentation underground mud pool device according to claim 1, characterized in that: The lifting mechanism (4) comprises a plurality of cylinders symmetrically distributed on both sides of the filter frame (3); the cylinders are vertically embedded in the side wall of the primary sedimentation tank (1); an outer edge protrusion (34) is provided on the top of the filter frame (3); and the piston rod of the cylinder is fixedly connected to the outer edge protrusion (34).

3. A fully enclosed multi-stage sedimentation underground mud pool device according to claim 2, characterized in that: The drainage channel (11) is slidably connected with a gate (7), and the primary sedimentation tank (1) is provided with a driving member (8), and the driving member (8) is used to drive the gate (7) to block or open the drainage channel (11).

4. A fully enclosed multi-stage sedimentation underground mud pool device according to claim 3, characterized in that: The secondary sedimentation tank (2) is covered with a third screen (9), the third screen (9) is arranged at an angle, and the inclined upper end of the third screen (9) is located below the drainage channel (11).

5. A construction method for a fully enclosed multi-stage sedimentation underground mud pool device as claimed in claim 4, characterized in that: The following steps are involved: S1: Pour the mud into the filter frame (3), and the first filter structure (5) filters the mud and screens out the impurities in the mud; S2: When the first filter structure (5) is covered with debris, the second filter structure (6) is placed in the filter frame (3), the second filter structure (6) covers the surface of the debris at the first filter structure (5), the debris is sandwiched between the first filter structure (5) and the second filter structure (6) to form a filter layer (10), and then the second filter structure (6) is fixed; S3: the lifting mechanism (4) drives the filter frame (3) to move downward as a whole, and the first filter structure (5), the second filter structure (6) and the filter layer (10) formed by the debris perform pressure filtration on the sludge in the primary sedimentation tank (1); S4: the drainage channel (11) is opened, and the upper layer of mud is discharged into the secondary sedimentation tank (2) through the drainage channel (11), and the mud completes the sedimentation step in the secondary sedimentation tank (2).

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