High-viscosity salt-resistant bentonite suspension slurry making equipment for pipe jacking

Abstract

According to the technical scheme, the high-viscosity salt-resistant bentonite suspension slurry making equipment is characterized by comprising a mixing box, a rotating hole is formed in one side of the mixing box, a first stirring rod is rotationally connected to the interior of the rotating hole, a plurality of supporting blocks are connected to the top face of the mixing box, and a feeding box is connected to the top faces of the supporting blocks; two material grooves are formed in the feeding box, and sealing plates are arranged in the material grooves. The premixing assembly is arranged on one side of the interior of the mixing box and used for premixing bentonite, the premixing assembly comprises a mixing pipe, the mixing pipe is connected to the interior of the mixing box, a feeding pipe is connected between the bottom of the material groove and the mixing box, a metering pump is connected to the interior of the feeding pipe, two feeding openings are formed in the outer wall face of the mixing pipe, and the two feeding openings are communicated with the mixing box. The feeding pipe is communicated with the feeding port, a second stirring rod is rotatably connected to the interior of the mixing pipe, bentonite and water are stirred and mixed in advance by rotating the second stirring rod, and caking after bentonite is mixed with a large amount of water is avoided.

Description

Technical Field

[0001] This invention relates to the field of mud preparation, specifically to a mud preparation equipment for high-viscosity, salt-resistant bentonite suspension mud used in pipe jacking. Background Technology

[0002] With the rapid development of modern infrastructure and the booming growth of urban rail transit, the requirements for slurry preparation have become increasingly stringent due to the tight schedules, high quality standards, and strict environmental regulations in the diaphragm wall construction industry. This is to ensure both high efficiency and environmental friendliness in diaphragm wall construction. High-speed slurry mixers are one of the most widely used methods for preparing slurry in diaphragm wall construction. They offer advantages such as simple process, low energy consumption, and easy operation. The process involves a motor driving a high-speed turbine pump. Slurry is drawn in from the bottom in a vortex pattern and ejected from the top of the container, generating a high-speed liquid flow and forming a strong vortex within the container. This ensures thorough and uniform mixing of dry powder and water, achieving the goal of preparing a low water-cement ratio slurry.

[0003] For example, Chinese patent CN216856339U discloses a high-efficiency mud preparation system. This system includes a feeding device comprising a funnel and a feeding pipe. One end of the feeding pipe is connected to the outlet at the bottom of the funnel, and the other end is located in a corner of the slurry preparation tank. The circulating slurry device includes a mud pump and a circulation pipe. The mud pump is located in the slurry preparation tank, and one end of the circulation pipe is connected to the mud pump, while the other end is connected to the inlet of the funnel. A stirring device is located in the slurry preparation tank and is diagonally arranged with respect to the feeding device. By rationally arranging more of the aforementioned stirring devices, the mud around the slurry preparation tank is stirred more thoroughly, resulting in more stable mud quality. After being transported to the mud-using equipment by the mud pump, it is less likely to cause mechanical wear due to the accumulation of large particles of impurities, thus extending the service life of the equipment and ensuring the quality of the project. However, in this scheme, the bentonite is directly added to the water, which is prone to clumping and reducing the preparation efficiency. It is necessary to use a certain amount of water to premix the bentonite to avoid clumping. Therefore, we propose a high-viscosity, salt-resistant bentonite suspension mud preparation equipment for pipe jacking. Summary of the Invention

[0004] In view of the problems mentioned in the background art, the purpose of this invention is to provide a high-viscosity, salt-resistant bentonite suspension slurry preparation device for pipe jacking, so as to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A high-viscosity, salt-resistant bentonite suspension slurry preparation device for pipe jacking includes: a mixing tank with a rotating hole on one side, a first stirring rod rotatably connected inside the rotating hole, multiple support blocks connected to the top surface of the mixing tank, a feeding box connected to the top surface of the support blocks, two material troughs inside the feeding box, and a sealing plate movably installed inside the material troughs; and a premixing assembly disposed inside the mixing tank for premixing bentonite, the premixing assembly including a mixing pipe rotatably connected inside the mixing tank. A feed pipe is connected between the bottom of the material tank and the mixing box. A metering pump is connected inside the feed pipe. Two feed ports are opened on the outer wall of the mixing pipe, and the feed pipe is connected to the feed ports. A second stirring rod is rotatably connected inside the mixing pipe. Bentonite and water are stored in the material tank respectively. During pulping, bentonite and water are fed into the mixing pipe through the feed pipe. The ratio of bentonite to water is controlled by the metering pump. The bentonite and water inside the mixing pipe are pre-mixed by rotating the second stirring rod to prevent the bentonite from clumping after mixing with a large amount of water.

[0007] By adopting the above technical solution and setting up a premixing component, bentonite and water are stored separately in the material tank during application. During slurry preparation, bentonite and water are fed into the mixing pipe through the feed pipe. The ratio of bentonite to water is controlled by a metering pump. The bentonite and water inside the mixing pipe are pre-mixed by rotating the second stirring rod to prevent the bentonite from clumping after mixing with a large amount of water, which would affect the slurry preparation effect. After the bentonite and water are initially mixed, the fully moistened bentonite inside the mixing pipe flows into the mixing box by rotating the mixing pipe. At this time, the operator adds a chemical agent into the mixing box to increase the salt resistance of the bentonite. Then, the first stirring rod is rotated to stir and mix the bentonite slurry and chemical reagents, thus achieving the purpose of efficient and rapid bentonite slurry preparation.

[0008] Preferably, a mounting groove is connected to one side of the mixing tank, a servo motor is connected inside the mounting groove, and a first transmission chain is connected between the drive shaft of the servo motor and the first stirring rod.

[0009] By adopting the above technical solution and setting a servo motor, when the operator starts the servo motor, the rotation of the servo motor drive shaft can drive the first stirring rod to rotate through the first transmission chain. The first stirring rod stirs and mixes the bentonite slurry and chemical reagents, thereby providing driving force for the rotation of the first stirring rod.

[0010] Preferably, a second transmission chain connects the first stirring rod and the second stirring rod.

[0011] By adopting the above technical solution and setting a second transmission chain, when the first stirring rod rotates, the second stirring rod can be driven to rotate through the second transmission chain, so that the second stirring rod can perform preliminary mixing of bentonite and water, thereby providing driving force for the rotation of the second stirring rod.

[0012] Preferably, a rotating groove is provided on one side of the mixing box, a connecting shaft is connected inside the rotating groove, a first gear is connected to the outer wall of the connecting shaft, and a second gear adapted to the first gear is connected to one end of the mixing tube. The first gear is an incomplete gear.

[0013] By adopting the above technical solution and setting a connecting shaft, during use, the operator can rotate the connecting shaft to drive the first gear to rotate, which in turn drives the second gear to rotate, which in turn drives the mixing tube to rotate. At the same time, since the first gear is an incomplete gear, when the first gear rotates one revolution, it can only drive the mixing tube to rotate half a revolution, which increases the residence time of bentonite inside the mixing tube and further avoids the phenomenon of bentonite clumping.

[0014] Preferably, a third transmission chain is connected between the first stirring rod and the connecting shaft.

[0015] By adopting the above technical solution and setting a third transmission chain, when the first stirring rod rotates, the third transmission chain drives the connecting shaft to rotate, thereby achieving the purpose of providing driving force for the rotation of the connecting shaft.

[0016] Preferably, the top surface of the mixing box is provided with a feeding hole, and a solenoid valve is connected inside the feeding hole.

[0017] By adopting the above technical solution and setting up a feeding hole, bentonite slurry is discharged into the mixing box through the mixing pipe during use. Operators can add chemical reagents into the mixing box through the feeding hole by opening the solenoid valve, thereby improving the salt resistance of bentonite.

[0018] Preferably, a mud pump is connected to the bottom of the mixing tank, a discharge hole is provided on one side of the mixing tank, a discharge pipe is connected inside the discharge hole, and one end of the discharge pipe is connected to the discharge end of the mud pump.

[0019] By adopting the above technical solution and setting up a mud pump, after the mud preparation is completed, the mud inside the mixing tank is extracted by the mud pump and discharged through the discharge pipe, which makes it convenient for operators to collect the mud and improves its practicality.

[0020] Preferably, a cleaning tank is connected to one side of the mixing tank, a water pump is connected to the bottom of the cleaning tank, a cleaning pipe is connected to one end of the water pump, a cleaning hole is opened on the outer wall of the discharge pipe, one end of the cleaning pipe is connected to the inside of the cleaning hole, and a controller is connected to one side of the mixing tank.

[0021] By adopting the above technical solution and setting up a water pump, after the bentonite slurry is discharged from the discharge pipe, the water pump draws out clean water from inside the cleaning tank. The clean water is then flushed into the discharge pipe through the cleaning pipe to clean the slurry remaining on the inner wall of the discharge pipe, thus preventing a large amount of bentonite slurry from clumping in the discharge pipe and causing blockage, thereby achieving the purpose of cleaning the discharge pipe.

[0022] In summary, the present invention has the following main beneficial effects:

[0023] By setting up a premixing component, bentonite and water are stored separately in the material tank during application. During slurry preparation, bentonite and water are fed into the mixing pipe through the feed pipe. The ratio of bentonite to water is controlled by a metering pump. The bentonite and water inside the mixing pipe are pre-mixed by rotating the second stirring rod to prevent the bentonite from clumping after mixing with a large amount of water, which would affect the slurry preparation effect. After the bentonite and water are initially mixed, the mixing pipe is rotated to allow the fully moistened bentonite inside the mixing pipe to flow into the mixing box. At this time, the operator adds a chemical agent into the mixing box to increase the salt resistance of the bentonite. Then, the first stirring rod is rotated to stir and mix the bentonite slurry with the chemical reagent, achieving the goal of efficient and rapid bentonite slurry preparation.

[0024] By setting up a servo motor, when the operator starts the servo motor, the rotation of the servo motor drive shaft can drive the first stirring rod to rotate through the first transmission chain. The first stirring rod stirs and mixes the bentonite slurry with chemical reagents, thus providing driving force for the rotation of the first stirring rod. By setting up a second transmission chain, when the first stirring rod rotates, the second transmission chain can drive the second stirring rod to rotate, so that the second stirring rod can perform preliminary stirring and mixing of bentonite and water, thus providing driving force for the rotation of the second stirring rod.

[0025] By setting a connecting shaft, during use, the operator can rotate the connecting shaft to drive the first gear to rotate, which in turn drives the second gear to rotate, which in turn drives the mixing tube to rotate. At the same time, since the first gear is an incomplete gear, when the first gear rotates one revolution, it can only drive the mixing tube to rotate half a revolution, which increases the residence time of bentonite inside the mixing tube and further avoids the phenomenon of bentonite clumping.

[0026] By setting up a feeding hole, bentonite slurry is discharged into the mixing box through the mixing pipe during use. Operators can add chemical reagents into the mixing box by opening the solenoid valve through the feeding hole to improve the salt resistance of the bentonite.

[0027] By installing a mud pump, once the mud preparation is complete, the mud inside the mixing tank is extracted and discharged through the discharge pipe, making it convenient for operators to collect the mud and improving its practicality. By installing a water pump, after the bentonite mud is discharged through the discharge pipe, clean water is pumped out from the cleaning tank. The clean water is flushed into the discharge pipe through the cleaning pipe to clean the mud residue on the inner wall of the discharge pipe, preventing the bentonite mud from clumping together and causing blockage, thus achieving the purpose of cleaning the discharge pipe. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the mixing box structure of the present invention;

[0030] Figure 3 yes Figure 2 Enlarged diagram of A in the middle;

[0031] Figure 4 This is a cross-sectional schematic diagram of the mixing box of the present invention;

[0032] Figure 5 This is a cross-sectional schematic diagram of the cleaning box of the present invention.

[0033] Reference numerals: 1. Mixing box; 2. Rotating hole; 3. First stirring rod; 4. Feeding box; 5. Material trough; 6. Mixing pipe; 7. Feeding pipe; 8. Feed inlet; 9. Second stirring rod; 10. Servo motor; 11. First transmission chain; 12. Second transmission chain; 13. Mounting groove; 14. Rotating groove; 15. Connecting shaft; 16. First gear; 17. Second gear; 18. Third transmission chain; 19. Feeding hole; 20. Solenoid valve; 21. Mud pump; 22. Discharge hole; 23. Discharge pipe; 24. Cleaning box; 25. Water pump; 26. Cleaning pipe; 27. Cleaning hole; 28. Sealing plate; 29. ​​Support block; 30. Controller; 31. Metering pump. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] refer to Figures 1-5 A high-viscosity, salt-resistant bentonite suspension slurry preparation device for pipe jacking includes a mixing tank 1. A rotating hole 2 is provided on one side of the mixing tank 1, and a first stirring rod 3 is rotatably connected inside the rotating hole 2. Multiple support blocks 29 are connected to the top surface of the mixing tank 1, and a feeding box 4 is connected to the top surface of the support blocks 29. Two material troughs 5 are provided inside the feeding box 4, and a sealing plate 28 is movably installed inside the material troughs 5. A premixing component is disposed inside one side of the mixing tank 1 for premixing bentonite. The premixing component includes a mixing pipe 6, which is rotatably connected inside the mixing tank 1. A feed pipe is connected between the bottom of the material troughs 5 and the mixing tank 1. 7. A metering pump 31 is internally connected to the feed pipe 7. Two feed ports 8 are opened on the outer wall of the mixing pipe 6, and the feed pipe 7 is connected to the feed ports 8. A second stirring rod 9 is rotatably connected inside the mixing pipe 6. Bentonite and water are stored separately through the material tank 5. During pulping, bentonite and water are respectively fed into the mixing pipe 6 through the feed pipe 7. The ratio of bentonite to water is controlled by the metering pump 31. The bentonite and water inside the mixing pipe 6 are pre-mixed by rotating the second stirring rod 9 to prevent the bentonite from clumping after mixing with a large amount of water. By setting up a pre-mixing component, during application, bentonite is stored separately through the material tank 5. During the slurry preparation process, bentonite and water are fed into the mixing pipe 6 through the feed pipe 7. The ratio of bentonite to water is controlled by the metering pump 31. The bentonite and water inside the mixing pipe 6 are pre-mixed by rotating the second stirring rod 9 to prevent the bentonite from clumping due to excessive water, which would affect the slurry preparation effect. After the bentonite and water are initially mixed, the fully moistened bentonite inside the mixing pipe 6 flows into the mixing tank 1 by rotating the mixing pipe 6. At this time, the operator adds a chemical agent into the mixing tank 1 to increase the salt resistance of the bentonite. Then, the first stirring rod 3 is rotated to further mix the bentonite. The bentonite slurry is mixed with chemical reagents to achieve efficient and rapid preparation of bentonite slurry. A mounting groove 13 is connected to one side of the mixing box 1. A servo motor 10 is connected inside the mounting groove 13. A first transmission chain 11 is connected between the drive shaft of the servo motor 10 and the first stirring rod 3. By setting up the servo motor 10, when the operator starts the servo motor 10, the rotation of the drive shaft of the servo motor 10 can drive the first stirring rod 3 to rotate through the first transmission chain 11. The first stirring rod 3 mixes the bentonite slurry with the chemical reagents, thereby providing driving force for the rotation of the first stirring rod 3.

[0036] Reference Figures 1-5A second transmission chain 12 connects the first stirring rod 3 and the second stirring rod 9. By setting the second transmission chain 12, when the first stirring rod 3 rotates, the second stirring rod 9 can be driven to rotate via the second transmission chain 12, causing the second stirring rod 9 to perform preliminary mixing of bentonite and water, thus providing driving force for the rotation of the second stirring rod 9. A rotating groove 14 is provided on one side of the mixing box 1. A connecting shaft 15 is connected inside the rotating groove 14, and a first gear 16 is connected to the outer wall of the connecting shaft 15. One end of the mixing pipe 6 is connected to a gear that engages with the first gear. The first gear 16 is an incomplete gear. By setting a connecting shaft 15, the operator can rotate the connecting shaft 15 to drive the first gear 16 to rotate. The rotation of the first gear 16 drives the second gear 17 to rotate. The rotation of the second gear 17 can drive the mixing tube 6 to rotate. At the same time, since the first gear 16 is an incomplete gear, when the first gear 16 rotates one revolution, it can only drive the mixing tube 6 to rotate half a revolution. This increases the residence time of bentonite inside the mixing tube 6 and further avoids the phenomenon of bentonite clumping.

[0037] Reference Figures 1-5 A third transmission chain 18 is connected between the first stirring rod 3 and the connecting shaft 15. By setting the third transmission chain 18, when the first stirring rod 3 rotates, the third transmission chain 18 drives the connecting shaft 15 to rotate, thereby providing driving force for the rotation of the connecting shaft 15. A feeding hole 19 is provided on the top surface of the mixing box 1. A solenoid valve 20 is connected inside the feeding hole 19. By setting the feeding hole 19, bentonite slurry is discharged into the mixing box 1 through the mixing pipe 6 during use. Operators can add chemical reagents into the mixing box 1 through the feeding hole 19 by opening the solenoid valve 20 to improve the salt resistance of the bentonite.

[0038] Reference Figures 1-5A mud pump 21 is connected to the bottom of the mixing tank 1. A discharge hole 22 is provided on one side of the mixing tank 1, and a discharge pipe 23 is connected inside the discharge hole 22. One end of the discharge pipe 23 is connected to the discharge end of the mud pump 21. By setting up the mud pump 21, after the mud is prepared, the mud inside the mixing tank 1 is pumped out by the mud pump 21 and discharged through the discharge pipe 23, which facilitates the collection of mud by the operators and improves practicality. A washing tank 24 is connected to one side of the mixing tank 1, and a water pump 25 is connected to the bottom of the washing tank 24. One end of the water pump 25 is connected to the discharge pipe 23. The end of the discharge pipe 23 is connected to a cleaning pipe 26, and a cleaning hole 27 is opened on the outer wall of the discharge pipe 23. One end of the cleaning pipe 26 is connected to the inside of the cleaning hole 27. A controller 30 is connected to one side of the mixing box 1. By setting a water pump 25, after the discharge pipe 23 discharges bentonite slurry, the water pump 25 draws out the clean water inside the cleaning box 24. The clean water is flushed into the discharge pipe 23 through the cleaning pipe 26 to clean the slurry remaining on the inner wall of the discharge pipe 23, so as to avoid the bentonite slurry from clumping in the discharge pipe 23 and causing the discharge pipe 23 to be blocked, thus achieving the purpose of cleaning the discharge pipe 23.

[0039] Working principle: Please refer to Figures 1-5As shown, by setting up a premixing component, bentonite and water are stored separately in the material tank 5 during application. During slurry preparation, bentonite and water are fed into the mixing pipe 6 through the feed pipe 7. The ratio of bentonite to water is controlled by the metering pump 31. The bentonite and water inside the mixing pipe 6 are pre-mixed by rotating the second stirring rod 9 to prevent the bentonite from clumping after mixing with a large amount of water, which would affect the slurry preparation effect. After the bentonite and water are initially mixed, the fully moistened bentonite inside the mixing pipe 6 flows into the mixing box 1 by rotating the mixing pipe 6. At this time, the operator adds a chemical agent into the mixing box 1 to increase the salt resistance of the bentonite. Then, the first stirring rod is rotated. 3. The first stirring rod 3 mixes the bentonite slurry with chemical reagents to achieve efficient and rapid preparation of bentonite slurry. A servo motor 10 is installed; during application, the operator starts the servo motor 10, and the rotation of the servo motor 10 drive shaft drives the first stirring rod 3 to rotate via the first transmission chain 11. The first stirring rod 3 mixes the bentonite slurry with chemical reagents, providing the driving force for its rotation. A second transmission chain 12 is installed; when the first stirring rod 3 rotates, the second stirring rod 9 rotates via the second transmission chain 12, allowing the second stirring rod 9 to perform preliminary mixing of bentonite and water. The purpose of providing driving force for the rotation of the second stirring rod 9 is achieved by setting a connecting shaft 15. During use, the operator can rotate the connecting shaft 15 to drive the first gear 16 to rotate, which in turn drives the second gear 17 to rotate. The rotation of the second gear 17 drives the mixing tube 6 to rotate. Since the first gear 16 is an incomplete gear, each rotation of the first gear 16 only drives the mixing tube 6 to rotate half a turn, increasing the residence time of the bentonite inside the mixing tube 6 and further preventing the bentonite from clumping. By setting a feeding hole 19, the bentonite slurry is discharged into the mixing box 1 through the mixing tube 6 during use. The operator can then open the solenoid valve 2. 0. Chemical reagents are added to the mixing tank 1 through the feeding hole 19 to improve the salt resistance of bentonite. A mud pump 21 is set up so that after the mud is prepared, the mud inside the mixing tank 1 is pumped out and discharged through the discharge pipe 23, which is convenient for operators to collect mud and improves practicality. A water pump 25 is set up so that after the bentonite mud is discharged through the discharge pipe 23, the water pump 25 draws out the clean water inside the cleaning tank 24. The clean water is flushed into the discharge pipe 23 through the cleaning pipe 26 to clean the mud residue on the inner wall of the discharge pipe 23, so as to avoid the bentonite mud from clumping in the discharge pipe 23 and causing blockage, thus achieving the purpose of cleaning the discharge pipe 23.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slurry preparation device for high-viscosity, salt-resistant bentonite suspension mud used in pipe jacking, characterized in that, include: A mixing box (1) is provided with a rotating hole (2) on one side. A first stirring rod (3) is rotatably connected inside the rotating hole (2). A plurality of support blocks (29) are connected to the top surface of the mixing box (1). A feeding box (4) is connected to the top surface of the support blocks (29). Two material troughs (5) are provided inside the feeding box (4). A sealing plate (28) is movably installed inside the material troughs (5). A premixing component is disposed inside the mixing tank (1) on one side for premixing bentonite. The premixing component includes a mixing pipe (6), which is rotatably connected inside the mixing tank (1). A feed pipe (7) is connected between the bottom of the material tank (5) and the mixing tank (1). A metering pump (31) is connected inside the feed pipe (7). Two feed ports (8) are opened on the outer wall of the mixing pipe (6). The feed pipe (7) is connected to the feed ports (8). A second stirring rod (9) is rotatably connected inside the mixing pipe (6).

2. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 1, characterized in that, The mixing tank (1) is connected to a mounting groove (13) on one side. A servo motor (10) is connected inside the mounting groove (13). A first transmission chain (11) is connected between the drive shaft of the servo motor (10) and the first stirring rod (3).

3. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 1, characterized in that, A second transmission chain (12) is connected between the first stirring rod (3) and the second stirring rod (9).

4. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 1, characterized in that, A rotating groove (14) is provided on one side of the mixing box (1). A connecting shaft (15) is connected inside the rotating groove (14). A first gear (16) is connected to the outer wall of the connecting shaft (15). A second gear (17) that is adapted to the first gear (16) is connected to one end of the mixing tube (6). The first gear (16) is an incomplete gear.

5. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 4, characterized in that, A third transmission chain (18) is connected between the first stirring rod (3) and the connecting shaft (15).

6. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 1, characterized in that, The mixing box (1) has a feeding hole (19) on its top surface, and a solenoid valve (20) is connected inside the feeding hole (19).

7. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 1, characterized in that, The bottom of the mixing tank (1) is connected to a mud pump (21). A discharge hole (22) is provided on one side of the mixing tank (1). A discharge pipe (23) is connected inside the discharge hole (22). One end of the discharge pipe (23) is connected to the discharge end of the mud pump (21).

8. The high-viscosity, salt-resistant bentonite suspension slurry preparation equipment for pipe jacking according to claim 7, characterized in that, A cleaning tank (24) is connected to one side of the mixing tank (1). A water pump (25) is connected to the bottom of the inner surface of the cleaning tank (24). A cleaning pipe (26) is connected to one end of the water pump (25). A cleaning hole (27) is opened on the outer wall of the discharge pipe (23). One end of the cleaning pipe (26) is connected to the inside of the cleaning hole (27). A controller (30) is connected to one side of the mixing tank (1).

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