Foundation pit mud pumping device

Abstract

The utility model discloses a foundation pit mud pumping device which comprises a base, a mud pumping bin is arranged on one side of the base, a plurality of mud suction pipes are fixedly connected to the bottom of the mud pumping bin, a filter plug is installed at the position of a pipe opening of each mud suction pipe, a first filter screen is installed on each filter plug, and a second filter screen is installed on each filter plug. A filter opening is formed in the side wall of the mud pumping bin, a filter plate is installed in the filter opening, a second filter screen is installed on the filter plate, a fixing frame is fixedly connected to the top of the base, a mud pumping mechanism is arranged on the base, and a cleaning mechanism is arranged on the fixing frame. The inside of the device can be cleaned after the device is used for a long time so as to prevent blockage of slurry residues, double filtration can be performed on foundation pit slurry in the extraction process, the filtering structure can be detached and taken out so as to facilitate regular cleaning or replacement, solid-liquid separation can be performed on the foundation pit slurry through the vibrating screen, and the vibrating screen is convenient to detach and clean.

Description

Technical Field

[0001] This utility model belongs to the field of mud extraction technology, and in particular relates to a mud extraction device for foundation pits. Background Technology

[0002] Pit slurry is a type of mud material used during the excavation of foundation pits to maintain the stability of the pit walls, prevent collapse, and improve construction efficiency. Pit slurry forms a protective film by infiltrating the soil, reducing groundwater seepage and soil wall deformation. It is commonly used in underground engineering construction, such as foundation pit excavation, pile foundation construction, and shield tunnel construction.

[0003] After the foundation pit project is completed, the used mud needs to be pumped out of the foundation pit for recycling, treatment or safe disposal. At present, the mud pumping work of the foundation pit is generally completed with the help of equipment such as mud pumps. For example, a mud pumping device for deep foundation pit piling is disclosed on the Chinese Patent Network, with the publication number CN221478553U. This mud pumping device can be used for the pumping of foundation pit mud, but there are some defects and deficiencies that need to be improved: (1) Some existing mud pumping equipment lacks a self-cleaning structure. After long-term use, a large amount of mud residue will often adhere to the inner wall of the pipe, which is difficult to clean effectively. Over time, it will cause the pipe to be blocked, thus affecting the subsequent mud pumping work; (2) The foundation pit mud contains a large amount of sand or impurities. In order to avoid these impurities from being pumped out, During the process, if the mud enters the pipeline and causes blockage or damage to the mud pump, a filter structure usually needs to be installed. However, although some existing mud extraction equipment is equipped with filter structures such as filter screens, most of them are fixed inside the device and are difficult to disassemble and remove at will, making it inconvenient to clean or replace the filter structure regularly; (3) During the mud extraction process, vibrating screens are usually used to remove large particles of sand, gravel and slag mixed in the mud so that the mud after solid-liquid separation can be reused. After long-term use, the surface of the vibrating screen often has impurities. Due to the structural design of some existing mud extraction equipment, the vibrating screen is mostly difficult to disassemble, making it inconvenient to clean. Therefore, in view of the above problems, the foundation pit mud extraction device provided by this utility model is of great significance. Utility Model Content

[0004] This utility model provides a foundation pit mud extraction device. A cleaning mechanism flushes the inner wall of the mud extraction chamber to remove mud residue adhering to the suction pipe and the inner wall of the mud extraction chamber, effectively preventing blockages that could affect subsequent mud extraction. The mud is double-filtered by a first filter screen on the filter plug and a second filter screen on the filter plate, removing sand and gravel or impurities from the foundation pit mud. This prevents these impurities from entering the pipeline during extraction and causing blockages or damage to the mud pump. After prolonged use, the filter plug and filter plate can be removed for periodic cleaning or replacement. A vibrating screen removes large particles of sand, gravel, and slag mixed in the foundation pit mud, achieving solid-liquid separation. The vibrating screen can be removed from the recovery tank by pulling out the installation rod for cleaning impurities remaining on its surface. In summary, this device solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a foundation pit mud extraction device, comprising a base, a mud extraction chamber on one side of the base, several connecting blocks fixedly connected between the mud extraction chamber and the base, and several suction pipes fixedly connected to the bottom of the mud extraction chamber. Each suction pipe has a filter plug installed at its opening, and a first filter screen is installed on the filter plug. A filter port is opened on the side wall of the mud extraction chamber, and a filter plate is installed inside the filter port. A second filter screen is installed on the filter plate, and an mounting plate is fixedly connected to one side of the filter plate. A handle is fixedly connected to the mounting plate. A fixing frame is fixedly connected to the top of the base, and a mud extraction mechanism is provided on the base. The top and side walls of the fixing frame have through holes, and a cleaning mechanism is provided on the fixing frame.

[0007] The sludge pumping mechanism includes a sludge pump and a recovery tank. Both the sludge pump and the recovery tank are mounted on a base. The sludge pump is equipped with a sludge pumping pipe and a sludge guide pipe. The other end of the sludge pumping pipe passes through a through hole in the side wall of the fixed frame and is fixedly connected to the side wall of the sludge pumping chamber, communicating with the inner cavity of the sludge pumping chamber. The other end of the sludge guide pipe is fixedly connected to the side wall of the recovery tank and communicates with the inner cavity of the recovery tank. A vibrating screen is installed in the recovery tank. The two sides of the vibrating screen are L-shaped, and several mounting rods are fixedly connected to the inner walls of the top of both sides. Springs are wound around the rods. Vibrators are installed on the top of both sides of the vibrating screen, and several screen holes are opened at the bottom of the vibrating screen. Several mounting holes are opened on the top of both sides of the recovery tank, and a drain pipe is fixedly connected to the bottom side wall of the recovery tank. A drain valve is installed on the drain pipe.

[0008] The cleaning mechanism includes a water pump, a water storage tank, and a water guide chamber. The water pump and the water storage tank are both mounted on a fixed frame. The water pump is equipped with a water suction pipe and a water guide pipe. The other end of the water suction pipe is fixedly connected to the side wall of the water storage tank and communicates with the water storage tank. The water guide chamber is installed at the top of the inner cavity of the mud suction chamber, and several nozzles are installed at its bottom. The water guide pipe is equipped with a water guide valve, and the other end of the water guide pipe passes through the through hole at the top of the fixed frame and then passes through the top of the mud suction chamber and the water guide chamber, respectively, and communicates with the inner cavity of the water guide chamber.

[0009] Furthermore, the bottom end of the nozzle is trumpet-shaped and communicates with the inner cavity of the water guide chamber, and the nozzles are equidistantly linearly distributed along the length of the water guide chamber.

[0010] Furthermore, the diameter of the filter plug is equal to the inner diameter of the suction pipe, and several positioning rods are fixedly connected to the edge of the filter plug. Several positioning holes are opened at the edge of the suction pipe opening. The number of positioning holes is the same as the number of positioning rods, the diameter is equal, and the center of each positioning hole corresponds one-to-one with the center of each positioning rod.

[0011] Furthermore, the filter opening is rectangular, and its length is equal to the inner wall length of the sludge suction chamber. The filter plate is rectangular, and its length and thickness are equal to the length and width of the filter opening, respectively.

[0012] Furthermore, the length and width of the vibrating screen are respectively equal to the length and width of the inner wall of the recycling tank, the number of mounting holes and mounting rods are the same, the diameter is equal, and the center of each mounting hole corresponds one-to-one with the center of each mounting rod.

[0013] Furthermore, the bottom of the base is fixedly connected with several anchor rods, the bottom end of the anchor rods is spike-shaped, and the body of the anchor rods is provided with several triangular barbs.

[0014] Furthermore, a pair of reinforcing ribs are fixedly connected to the top inner wall of the fixing frame. The reinforcing ribs are triangular, and one side of them is fixedly connected to the side wall of the fixing frame.

[0015] The present invention has the following advantages over the prior art:

[0016] (1) When using the foundation pit mud extraction device of this utility model, the inner wall of the mud extraction chamber can be flushed by the cleaning mechanism to remove the mud residues adhering to the suction pipe and the inner wall of the mud extraction chamber, thereby effectively preventing the suction pipe and the mud extraction chamber from being blocked and affecting the subsequent mud extraction work.

[0017] (2) When the foundation pit mud extraction device of this utility model is used, the mud can be filtered twice through the first filter screen on the filter plug and the second filter screen on the filter plate, so as to filter out the sand or impurities in the foundation pit mud, thereby preventing these impurities from entering the pipeline during the extraction process and causing blockage or damage to the mud pump. After long-term use, the filter plug and filter plate can be removed separately for regular cleaning or replacement.

[0018] (3) When the foundation pit mud extraction device of this utility model is used, the large particles of sand and gravel and slag mixed in the foundation pit mud can be screened out by the vibrating screen to achieve solid-liquid separation of the foundation pit mud. The vibrating screen can be taken out from the recovery pool by pulling out the installation rod so as to clean the impurities remaining on the surface of the vibrating screen.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a foundation pit mud extraction device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the base and the mud-collecting chamber in this utility model;

[0023] Figure 3 This is a schematic diagram of the mud-removing mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the cleaning mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the filter plug in this utility model;

[0026] Figure 6 This is a schematic diagram of the filter plate in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the vibrating screen in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Base; 2. Sludge suction chamber; 3. Connecting block; 4. Sludge suction pipe; 5. Filter plug; 6. First filter screen; 7. Filter port; 8. Filter plate; 9. Second filter screen; 10. Mounting plate; 11. Handle; 12. Fixing frame; 13. Sludge pump; 14. Recovery tank; 15. Sludge suction pipe; 16. Sludge guide pipe; 17. Vibrating screen; 18. Mounting rod; 19. Spring; 20. Vibrator; 21. Screen hole; 22. Mounting hole; 23. Drain pipe; 24. Drain valve; 25. Water pump; 26. Water storage tank; 27. Water guide chamber; 28. Sludge suction pipe; 29. ​​Water guide pipe; 30. Nozzle; 31. Water guide valve; 32. Positioning rod; 33. Positioning hole; 34. Anchor rod; 35. Reinforcing rib. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figure 1-7 As shown, the present invention discloses a foundation pit mud extraction device, including a base 1, a mud extraction chamber 2 on one side of the base 1, a plurality of connecting blocks 3 fixedly connected between the mud extraction chamber 2 and the base 1, and a plurality of suction pipes 4 fixedly connected to the bottom of the mud extraction chamber 2, a filter plug 5 installed at the opening of each suction pipe 4, a first filter screen 6 installed on the filter plug 5, a filter port 7 opened on the side wall of the mud extraction chamber 2, a filter plate 8 installed in the filter port 7, a second filter screen 9 installed on the filter plate 8, and an installation plate 10 fixedly connected to one side of the filter plate 8, a handle 11 fixedly connected to the installation plate 10, a fixing frame 12 fixedly connected to the top of the base 1, and a mud extraction mechanism provided on the base 1, and through holes opened on the top and side wall of the fixing frame 12, and a cleaning mechanism provided on the fixing frame 12;

[0033] The sludge pumping mechanism includes a sludge pump 13 and a recovery tank 14. Both the sludge pump 13 and the recovery tank 14 are mounted on the base 1. The sludge pump 13 is equipped with a sludge pumping pipe 15 and a sludge guide pipe 16. The other end of the sludge pumping pipe 15 passes through a through hole in the side wall of the fixing frame 12 and is fixedly connected to the side wall of the sludge pumping chamber 2, communicating with the inner cavity of the sludge pumping chamber 2. The other end of the sludge guide pipe 16 is fixedly connected to the side wall of the recovery tank 14 and communicates with the inner cavity of the recovery tank 14. A vibrating screen 17 is installed inside the recovery tank 14. The vibrating screen 17 has L-shaped sides, and the inner walls of its top sides are... Several mounting rods 18 are fixedly connected, and springs 19 are wound around the rods of the mounting rods 18. Vibrators 20 are installed on the top of both sides of the vibrating screen 17, and several screen holes 21 are opened at the bottom of the vibrating screen 17. Several mounting holes 22 are opened on the top of both sides of the recycling tank 14, and a drain pipe 23 is fixedly connected to the bottom side wall of the recycling tank 14. A drain valve 24 is installed on the drain pipe 23. By driving the mud pump 13, the mud in the pit can be sucked into the mud pumping chamber 2 through multiple mud suction pipes 4, and then introduced into the recycling tank 14 through the mud pumping pipe 15 and the mud guide pipe 16.

[0034] The cleaning mechanism includes a water pump 25, a water storage tank 26, and a water guide chamber 27. Both the water pump 25 and the water storage tank 26 are mounted on a fixed frame 12. A water pump 25 is equipped with a suction pipe 28 and a water guide pipe 29. The other end of the suction pipe 28 is fixedly connected to the side wall of the water storage tank 26 and communicates with it. The water guide chamber 27 is installed at the top of the inner cavity of the mud-collecting chamber 2, and several nozzles 30 are installed at its bottom. A water guide valve 31 is installed on the water guide pipe 29, and the other end of the water guide pipe 29 passes through a through hole at the top of the fixed frame 12 and then through both the mud-collecting chamber 2 and the water guide chamber 27. The top of the 7 is connected to the inner cavity of the water guide chamber 27. The water storage tank 26 has an inlet, which can inject clean water into the water storage tank 26. By driving the water pump 25, the clean water stored in the water storage tank 26 can be sucked into the water pumping pipe 28 and introduced into the water guide chamber 27 through the water guide pipe 29. Finally, it is sprayed out through each nozzle 30. At this time, the water sprayed by the nozzle 30 can be used to flush the inner wall of the mud pumping chamber 2 in order to remove the mud residue adhering to the mud suction pipe 4 and the inner wall of the mud pumping chamber 2, thereby effectively preventing the mud suction pipe 4 and the mud pumping chamber 2 from being blocked and affecting the subsequent mud pumping work.

[0035] The nozzle 30 has a trumpet-shaped bottom end and is connected to the inner cavity of the water guide chamber 27. The nozzles 30 are equidistantly linearly distributed along the length of the water guide chamber 27. Multiple nozzles 30 can effectively expand the spray range of clean water, enabling it to cover the entire mud pumping chamber 2, thereby greatly improving the cleaning efficiency and effect.

[0036] The filter plug 5 has the same diameter as the inner diameter of the suction pipe 4, and several positioning rods 32 are fixedly connected to the edge of the filter plug 5. Several positioning holes 33 are opened at the edge of the suction pipe 4. The number of positioning holes 33 and the positioning rods 32 are the same, and the diameter is equal. The center of each positioning hole 33 corresponds to the center of each positioning rod 32. The filter plug 5 can be inserted into and fit against the inner wall of the suction pipe 4. At this time, each positioning rod 32 can be aligned and pass through the corresponding positioning hole 33. The filter plug 5 can be positioned by the mutual cooperation between the positioning rod 32 and the positioning hole 33, so as to fix it at the opening of each suction pipe 4. When the mud is pumped out, the first filter screen 6 on the filter plug 5 can be used to perform preliminary filtration of the mud to remove sand or impurities in the foundation pit mud, thereby preventing these impurities from entering the pipe during the pumping process and causing blockage or damage to the mud pump 13. After long-term use, the filter plug 5 can be pulled out from the suction pipe 4 for regular cleaning or replacement.

[0037] The filter port 7 is rectangular, and its length is equal to the inner wall length of the mud pumping chamber 2. The filter plate 8 is rectangular, and its length and thickness are equal to the length and width of the filter port 7, respectively. The filter plate 8 can pass through the filter port 7 and fit against the inner wall of the mud pumping chamber 2. When the mud is pumped out, the second filter screen 9 on the filter plate 8 can be used to filter the mud a second time to further remove the impurities remaining in the foundation pit mud. After long-term use, the mounting plate 10 and the filter plate 8 can be removed from the mud pumping chamber 2 by pulling the handle 11 for regular cleaning or replacement.

[0038] The length and width of the vibrating screen 17 correspond to the length and width of the inner wall of the recycling tank 14, respectively. The number and diameter of the mounting holes 22 and mounting rods 18 are the same, and the center of each mounting hole 22 corresponds one-to-one with the center of each mounting rod 18. Each mounting rod 18 can be aligned and pass through its corresponding mounting hole 22. Through the cooperation between the mounting rods 18 and the mounting holes 22, the vibrating screen 17 can be installed and positioned in the recycling tank 14. At this time, the bottom end of the spring 19 abuts against the top of the recycling tank 14. By driving the vibrator 20, the vibrating screen 17 can be driven to vibrate up and down under the elastic action of the spring 19. When the mud pipe 16 introduces the extracted foundation pit mud into the recovery tank 14, the vibrating screen 17, which vibrates up and down continuously, can screen out large particles of sand, gravel and slag mixed in the foundation pit mud to achieve solid-liquid separation of the foundation pit mud. The separated solid mud and impurities can remain in the vibrating screen 17, while the wastewater is collected at the bottom of the recovery tank 14 through the screen holes 21. The wastewater can be discharged along the drain pipe 23 by opening the drain valve 24 for subsequent treatment and reuse. After long-term use, the vibrating screen 17 can be removed from the recovery tank 14 by pulling out the installation rod 18 to clean the impurities remaining on the surface of the vibrating screen 17.

[0039] The base 1 has several anchor rods 34 fixedly connected to its bottom. The bottom end of the anchor rod 34 is spiked, and the rod body of the anchor rod 34 is provided with several triangular barbs. When the base 1 is placed on the ground, the spikes at the bottom end of the anchor rod 34 can be inserted into the soil. At this time, the barbs can increase the gripping force between the anchor rod 34 and the ground, so as to firmly fix the base 1 together with the extraction device to the ground, thereby preventing it from shifting during operation.

[0040] Among them, a pair of reinforcing ribs 35 are fixedly connected to the top inner wall of the fixing frame 12. The reinforcing ribs 35 are triangular, and one side is fixedly connected to the side wall of the fixing frame 12. The reinforcing ribs 35 can support and reinforce the fixing frame 12, so as to improve the structural strength of the fixing frame 12 and prevent it from bending and deforming after being subjected to force for a long time.

[0041] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0042] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all connected to the external main controller and 220V mains power. The main controller is a conventional known device that can play a control role.

[0043] The working principle of this utility model is as follows:

[0044] In use, this invention allows the slurry from the foundation pit to be drawn into the slurry extraction chamber 2 via multiple suction pipes 4 by a slurry pump 13. The slurry is then guided into the recovery tank 14 through suction pipes 15 and guide pipes 16. Filter plugs 5 and filter plates 8 are installed at the inlets of each suction pipe 4 and the filter ports 7 of the slurry extraction chamber 2, respectively. During slurry extraction, the first filter screen 6 on the filter plug 5 and the second filter screen 9 on the filter plate 8 perform double filtration to remove sand or impurities from the foundation pit slurry, preventing these impurities from entering the pipes and causing blockages or damage to the slurry pump 13 during extraction. After double filtration, the foundation pit slurry enters the recovery tank 14 and falls onto a vibrating screen 17. At this time, the vibrator 20 drives the vibrating screen 17 to vibrate up and down under the elastic action of the spring 19. The continuously vibrating vibrating screen 17 removes large particles of sand, gravel, and slag mixed in the foundation pit slurry, achieving solid-liquid separation of the foundation pit slurry. Solid mud and impurities can remain on the vibrating screen 17 after separation, while wastewater is collected at the bottom of the recovery tank 14 through the screen holes 21. The wastewater can be discharged along the drain pipe 23 by opening the drain valve 24 for subsequent treatment and reuse. After the mud extraction device has been used for a long time, the filter plug 5 and filter plate 8 can be removed for regular cleaning or replacement. At the same time, the vibrating screen 17 can be removed from the recovery tank 14 by pulling out the installation rod 18 to clean the impurities remaining on the surface of the vibrating screen 17. In addition, the clean water stored in the water storage tank 26 can be drawn into the water pumping pipe 28 by driving the water pump 25, and then introduced into the water guide chamber 27 through the water guide pipe 29. Finally, it is sprayed out through each nozzle 30. At this time, the water sprayed by the nozzle 30 can flush the inner wall of the mud extraction chamber 2 to remove the mud residue adhering to the mud suction pipe 4 and the inner wall of the mud extraction chamber 2, thereby effectively preventing the mud suction pipe 4 and the mud extraction chamber 2 from being blocked and affecting the subsequent mud extraction work.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A foundation pit slurry pumping device, characterized by, The base is provided with a mud suction bin on one side, a plurality of connecting blocks are fixedly connected between the mud suction bin and the base, a plurality of suction pipes are fixedly connected to the bottom of the mud suction bin, a filter plug is installed at the pipe opening of each suction pipe, a first filter screen is installed on the filter plug, a filter opening is formed in the sidewall of the mud suction bin, a filter plate is installed in the filter opening, a second filter screen is installed on the filter plate, an installation plate is fixedly connected to one side of the filter plate, a handle is fixedly connected to the installation plate, a fixing frame is fixedly connected to the top of the base, a mud suction mechanism is arranged on the base, a through hole is formed in the top and sidewall of the fixing frame, and a cleaning mechanism is arranged on the fixing frame. The mud suction mechanism comprises a mud pump and a recovery tank, the mud pump and the recovery tank are installed on the base, a mud suction pipe and a mud guide pipe are respectively installed on the mud pump, the other end of the mud suction pipe is fixedly connected to the sidewall of the mud suction bin through the through hole in the sidewall of the fixing frame and is communicated with the inner cavity of the mud suction bin, the other end of the mud guide pipe is fixedly connected to the sidewall of the recovery tank and is communicated with the inner cavity of the recovery tank, a vibrating screen is installed in the recovery tank, the vibrating screen is L-shaped in shape, a plurality of installation rods are fixedly connected to the inner walls of the top of the two sides of the vibrating screen, springs are wound around the rod bodies of the installation rods, a vibration exciter is installed on the top of the two sides of the vibrating screen, a plurality of screen holes are formed in the bottom of the vibrating screen, a plurality of installation holes are formed in the top of the two sides of the recovery tank, and a drain pipe is fixedly connected to the sidewall of the bottom of the recovery tank. The cleaning mechanism comprises a water pump, a water storage tank and a water guide bin, the water pump and the water storage tank are installed on the fixing frame, a water suction pipe and a water guide pipe are respectively installed on the water pump, the other end of the water suction pipe is fixedly connected to the sidewall of the water storage tank and is communicated with the water storage tank, the water guide bin is installed in the inner cavity of the mud suction bin, a plurality of spray heads are installed at the bottom of the water guide bin, a water guide valve is installed on the water guide pipe, and the other end of the water guide pipe is respectively penetrated through the top of the mud suction bin and the water guide bin and is communicated with the inner cavity of the water guide bin.

2. The foundation pit slurry pumping device according to claim 1, characterized in that, The bottom end of the spray head is in the shape of a horn and is communicated with the inner cavity of the water guide bin, and the spray heads are linearly and equidistantly distributed along the length direction of the water guide bin.

3. The foundation pit slurry pumping device according to claim 1, characterized in that, The diameter of the filter plug is equal to the inner diameter of the suction pipe, a plurality of positioning rods are fixedly connected to the edge of the filter plug, a plurality of positioning holes are formed in the edge of the pipe opening of the suction pipe, the number and diameter of the positioning holes are equal to those of the positioning rods, and the center of each positioning hole and the center of each positioning rod correspond to each other.

4. The foundation pit slurry pumping device according to claim 1, characterized in that, The filter opening is rectangular, the length of the filter opening is equal to the length of the inner wall of the mud suction bin, the filter plate is rectangular, the length and thickness of the filter plate are equal to the length and width of the filter opening respectively.

5. The foundation pit slurry pumping device according to claim 1, characterized in that, The length and width of the vibrating screen are equal to the length and width of the inner wall of the recovery tank respectively, the number and diameter of the installation holes are equal to those of the installation rods, and the center of each installation hole and the center of each installation rod correspond to each other.

6. The foundation pit slurry pumping device according to claim 1, characterized in that, The bottom of the base is fixedly connected with a plurality of anchoring rods, the bottom end of the anchoring rod is in the form of a spike, and the rod body of the anchoring rod is provided with a plurality of triangular barbs.

7. The foundation pit slurry pumping device according to claim 1, characterized in that, The top inner wall of the fixing frame is fixedly connected with a pair of reinforcing ribs, the reinforcing rib is triangular, and one side of the reinforcing rib is fixedly connected to the side wall of the fixing frame.

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