A slurry preparation device for separation layer grouting

By designing a slurry preparation equipment including stirring, screening, shaking and transmission mechanism, the problem of inconvenient raw material screening in existing equipment is solved, rapid screening and uniform mixing of raw materials are achieved, and the efficiency of slurry preparation is improved.

CN119773052APending Publication Date: 2025-04-08山西霍尔辛赫煤业有限责任公司
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Patent Information

Application Number
CN202510039880.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The existing slurry preparation equipment is inconvenient when screening solid raw materials, which affects the uniformity and preparation speed of the slurry.

Method used

A slurry preparation device including a stirring mechanism, a screening mechanism, a shaking mechanism and a transmission mechanism are designed. Through the coordination of the screen mesh and the fixed shaft of the screening mechanism, the removal of unqualified raw materials is achieved; through the synergy between the jitter mechanism and the transmission mechanism, the rapid screening and mixing of raw materials is achieved.

Benefits of technology

This equipment can easily and quickly screen solid raw materials, remove unqualified raw materials, avoid bottom sticking, and greatly improve the speed and efficiency of slurry preparation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of engineering construction, in particular to a slurry preparation device for delamination grouting. Aiming at the problem that the slurry preparation device in the prior art is inconvenient to screen, the following scheme is proposed, which includes: a stirring mechanism, which includes a stirring tank and a stirring paddle installed inside the stirring tank, and a discharge port is provided at the bottom of the stirring tank; a screening mechanism, which includes a distribution hopper fixed on the top of the stirring tank, a screening hopper rotatably connected to the top of the distribution hopper, and a gear ring sleeved on the periphery of the screening hopper, a screen is installed inside the screening hopper, and a fixed shaft is rotatably connected to the center of the screen, and a plurality of partitions are evenly fixed on the periphery of the fixed shaft. The present invention can not only conveniently and quickly screen solid raw materials, but also remove unqualified solid raw materials for centralized discharge, and can also effectively avoid the situation of sticking to the bottom while stirring, greatly improving the speed of slurry preparation.
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Description

Technical Field

[0001] The invention relates to the field of engineering construction, and in particular to a slurry preparation device for separation layer grouting. Background Art

[0002] Delamination mostly occurs between rock layers with large differences in lithology. Delamination grouting is a commonly used foundation reinforcement method that injects slurry into the foundation to form a layer of solid slurry, thereby improving the bearing capacity and stability of the foundation.

[0003] When preparing slurry for grouting, the existing equipment needs to mix different raw materials together evenly, and in order to ensure the uniformity of the slurry, it is necessary to screen and limit the particle size of the solid raw materials to avoid blockage due to excessive particle size during grouting. The existing slurry preparation device mainly relies on manual screening in advance, which affects the convenience of preparing slurry. For this reason, this scheme proposes a slurry preparation device for delamination grouting. Summary of the invention

[0004] The invention provides a slurry preparation device for separation layer grouting, which solves the problem of inconvenient screening of slurry preparation devices in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A slurry preparation device for separation layer grouting, comprising:

[0007] The stirring mechanism comprises a stirring tank and a stirring paddle installed inside the stirring tank, and a discharge port is provided at the bottom of the stirring tank;

[0008] The screening mechanism comprises a material distribution hopper fixed on the top of the mixing tank, a screening hopper rotatably connected to the top of the material distribution hopper, and a gear ring sleeved on the outer periphery of the screening hopper, a screen is installed inside the screening hopper, a fixed shaft is rotatably connected to the center of the screen, a plurality of partitions are evenly fixed on the outer periphery of the fixed shaft, the bottom of the fixed shaft passes through the material distribution hopper and extends to the inner side of the mixing tank, a discharge hole is opened on the outer peripheral edge of the screening hopper, a material receiving trough is fixed on the outer periphery of the discharge hole, and a plurality of drop holes are opened on the bottom of the material distribution hopper;

[0009] The shaking mechanism includes a mounting plate fixed on the outer wall of the mixing tank, a screw rotatably connected to the top surface of the mounting plate, a driving gear fixed to the top surface of the screw, and a transmission assembly mounted on the bottom surface of the mixing tank for driving the screw to reciprocate, wherein the driving gear is meshed with a gear ring;

[0010] The transmission mechanism includes a screw sleeve threadedly sleeved on the outer periphery of the screw, a tooth plate fixed on the bottom surface of the screw sleeve and a transmission shaft rotatably connected to the outer wall of the mixing tank. The bottom of the transmission shaft extends to the inner side of the mixing tank and is transmission-connected to the bottom of the fixed shaft. A ratchet is fixed to the other end of the transmission shaft, and a plurality of ratchet teeth meshing with the ratchet are installed on the outer wall of the tooth plate.

[0011] Through the above technical scheme, not only can the solid raw materials be screened conveniently and quickly, but also the unqualified solid raw materials can be removed and discharged in a centralized manner. At the same time, it can also effectively avoid the problem of sticking to the bottom during stirring, greatly improving the speed of slurry preparation.

[0012] As a further improvement of the above solution, a through hole is opened at the bottom of the screw sleeve and is arranged in the same direction as the screw rod. A limiting rod is fixed to the top surface of the mounting plate and is arranged in the same direction as the screw rod. The top of the limiting rod passes through the through hole and is slidably connected with the screw sleeve.

[0013] The above technical solution can prevent the screw sleeve from rotating with the screw.

[0014] As a further improvement of the above scheme, the transmission assembly includes a transmission motor installed on the bottom surface of the mixing tank, a rotating wheel fixed on one end of the output shaft of the transmission motor, a transmission rack arranged directly below the mounting plate, and a linkage member installed on the rotating wheel for driving the transmission rack to reciprocate. The bottom of the screw extends to the bottom of the mounting plate and is fixed with a linkage gear meshing with the transmission rack. The outer movable sleeve of the transmission rack is provided with a plurality of fixed sleeves, and the fixed sleeves are fixedly connected to the bottom surface of the mounting plate through a connecting rod.

[0015] Through the above technical solution, the motor drives the linkage to operate, thereby driving the transmission rack to move back and forth.

[0016] As a further improvement of the above scheme, the linkage member includes a toggle column fixed on the bottom surface of the rotating wheel at a position deviating from the center of the circle and a fixed frame movably mounted on the outer circumference of the toggle column, and one end of the transmission rack is fixedly connected to one long side of the fixed frame.

[0017] Through the above technical solution, the rotation of the rotating wheel is used to drive the fixed frame to move back and forth, thereby driving the transmission rack to move back and forth.

[0018] As a further improvement of the above scheme, the interiors of the screening hopper and the dividing hopper are both circular structures, the receiving trough is arranged obliquely, and an opening is provided at one end of the receiving trough inclined downward.

[0019] Through the above technical solution, the raw materials falling into the material receiving trough can be easily discharged from the opening.

[0020] As a further improvement of the above solution, the bottom inner wall of the distribution hopper is a conical structure, and the plurality of drop holes are all opened at the bottom edge of the distribution hopper.

[0021] Through the above technical solution, the raw materials falling into the distribution hopper can be dispersed into the mixing tank through multiple drop holes.

[0022] As a further improvement of the above solution, a dividing plate located in the dividing hopper is fixed to the outer periphery of the fixed shaft, the bottom surface of the dividing plate is in contact with the bottom inner wall of the dividing hopper, and the other end of the dividing plate is in contact with the inner ring of the dividing hopper.

[0023] Through the above technical solution, the rotation of the dividing plate is utilized to move the raw materials in the dividing hopper, so that the raw materials can be discharged from the drop hole more smoothly, and the raw materials are prevented from remaining in the dividing hopper.

[0024] As a further improvement of the above scheme, the stirring paddle includes a stirring shaft rotatably connected to the inner wall of the bottom of the stirring tank and a plurality of stirring rods fixed on the outer periphery of the stirring shaft, and a stirring motor for driving the stirring shaft to rotate is installed on the bottom surface of the stirring tank.

[0025] Through the above technical solution, the rotation of the motor is used to drive the stirring shaft to rotate, and the stirring shaft then drives the stirring rod to stir the raw materials in the stirring tank.

[0026] As a further improvement of the above solution, a feeding port is provided on the top surface of the stirring tank, and a sealing cover is hinged on one side of the feeding port.

[0027] Through the above technical solution, liquid raw materials can be conveniently added into the stirring tank through the feeding port.

[0028] As a further improvement of the above scheme, a bottom scraping mechanism is installed inside the mixing tank, and the bottom scraping mechanism includes a gear ring rotatably sleeved on the inner ring of the mixing tank, a vertical scraper fixed on the bottom surface of the gear ring, and a horizontal scraper fixed on the bottom of the vertical scraper, the long side of the vertical scraper is in contact with the inner ring of the mixing tank, the long side of the horizontal scraper is in contact with the inner wall of the bottom of the mixing tank, and a transmission gear is sleeved on the outer periphery of the transmission shaft, and the transmission gear is located on the top surface of the gear ring and meshes with it.

[0029] Through the above technical solution, the raw materials attached to the inner circle of the mixing tank are scraped off by a vertical scraper, and the raw materials attached to the inner wall at the bottom of the mixing tank are scraped up by a horizontal scraper to avoid sticking to the bottom.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Through the cooperation between the screening mechanism, the shaking mechanism and the transmission mechanism, the screening hopper can be driven to rotate back and forth continuously while the fixed shaft can also be driven to rotate intermittently in one direction, so that the raw materials with unqualified particle size remaining on the top of the filter can be carried to the discharge hole by the partition in the rotation direction of the fixed shaft and discharged, thereby achieving the purpose of conveniently removing unqualified raw materials.

[0032] 2. Through the arrangement of the dividing hopper, the fixed shaft and the dividing plate, the dividing plate can be driven to rotate while the rotating shaft rotates, so that the raw materials in the dividing hopper can be discharged from multiple drop holes, thereby avoiding the accumulation of the raw materials in a certain place after entering the mixing tank, which helps to speed up the mixing speed of the raw materials and avoid agglomeration of the raw materials.

[0033] 3. The rotation of the transmission shaft will drive the gear ring to rotate, and then the vertical scraper and the horizontal scraper will rotate, so that the raw materials attached to the inner wall and inner ring at the bottom of the mixing tank can be scraped off to avoid the situation where the raw materials stick to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the bottom surface of the present invention;

[0036] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0037] Figure 4 is a cross-sectional view of the present invention;

[0038] Figure 5 It is a schematic diagram of the structure of the transmission gear, gear ring and transmission shaft;

[0039] Figure 6 It is a structural schematic diagram of the material distribution hopper;

[0040] Figure 7 It is a schematic structural diagram of the top surface of the present invention;

[0041] Figure 8 It is a schematic diagram of the structure of the ratchet and the tooth plate.

[0042] Description of main symbols:

[0043] 1. Mixing tank; 2. Screen hopper; 3. Fixed shaft; 4. Partition; 5. Gear ring; 6. Drive gear; 7. Screw sleeve; 8. Ratchet; 9. Screw; 10. Limit rod; 11. Mounting plate; 12. Transmission rack; 13. Fixed sleeve; 14. Linkage gear; 15. Fixed frame; 16. Sealing cover; 17. Feeding port; 18. Receiving trough; 19. Mixing motor; 20. Toggle column; 21. Rotary wheel; 22. Transmission motor; 23. Discharge hole; 24. Tooth plate; 25. Transmission shaft; 26. Gear ring; 27. Distribution hopper; 28. Distribution plate; 29. ​​Mixing shaft; 30. Mixing rod; 31. Transmission gear; 32. Vertical scraper; 33. Horizontal scraper; 34. Dropping hole; 35. Screen. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0045] Embodiment 1:

[0046] Please combine Figure 1 - Figure 8 , a slurry preparation device for separation layer grouting of this embodiment includes:

[0047] The stirring mechanism comprises a stirring tank 1 and a stirring paddle installed inside the stirring tank 1, a discharge port is provided at the bottom of the stirring tank 1, a feeding port 17 is provided on the top surface of the stirring tank 1, a sealing cover 16 is hinged on one side of the feeding port 17, the stirring paddle comprises a stirring shaft 29 rotatably connected to the inner wall of the bottom of the stirring tank 1 and a plurality of stirring rods 30 fixed on the periphery of the stirring shaft 29, a stirring motor 19 for driving the stirring shaft 29 to rotate is installed on the bottom surface of the stirring tank 1, and the output shaft of the stirring motor 19 is transmission-connected to the bottom of the stirring shaft 29.

[0048] The screening mechanism includes a material dividing hopper 27 fixed on the top of the mixing tank 1, a screening hopper 2 rotatably connected to the top of the material dividing hopper 27, and a gear ring 5 sleeved on the outer periphery of the screening hopper 2. The insides of the screening hopper 2 and the material dividing hopper 27 are both circular structures. A screen 35 is installed inside the screening hopper 2. The center of the screen 35 is rotatably connected to a fixed shaft 3. A plurality of partitions 4 are evenly fixed on the outer periphery of the fixed shaft 3. A screening area is formed between two adjacent partitions 4. The bottom of the fixed shaft 3 passes through the material dividing hopper 27 and extends to the inside of the mixing tank 1. The screening hopper 2 has a plurality of partitions 4, each of which is provided with a plurality of partitions 4. The screening area is formed between two adjacent partitions 4. The bottom of the fixed shaft 3 passes through the material dividing hopper 27 and extends to the inside of the mixing tank 1. A discharge hole 23 is provided on the outer edge, and a receiving trough 18 is fixed on the outer periphery of the discharge hole 23. The screening hopper 2 continuously reciprocates, so that the raw materials falling on the top of the screen 35 can be screened, and qualified materials fall into the dividing hopper 27, and unqualified materials will be discharged from the discharge hole 23 under the rotation of the screening hopper 2. The screening area is arranged so that when the fixed shaft 3 rotates, the unqualified raw materials staying in the screening area can be pushed to the position of the discharge hole 23. At the same time, the obstruction of the partition 4 can also prevent the raw materials that are not completely screened from entering the discharge hole 23.

[0049] The receiving trough 18 is tilted, and an opening is provided at one end of the receiving trough 18 tilted downward. The materials discharged from the discharge hole 23 fall into the receiving trough 18 and are then discharged from the opening of the receiving trough 18 in a centralized manner.

[0050] The bottom of the distribution hopper 27 is provided with a plurality of drop holes 34 , and the materials dropped into the distribution hopper 27 are dispersed and put into the mixing tank 1 through the plurality of drop holes 34 , which helps to increase the speed of mixing the raw materials.

[0051] The shaking mechanism includes a mounting plate 11 fixed on the outer wall of the mixing tank 1, a screw 9 rotatably connected to the top surface of the mounting plate 11, a driving gear 6 fixed to the top surface of the screw 9, and a transmission assembly installed on the bottom surface of the mixing tank 1 for driving the screw 9 to reciprocate. The driving gear 6 is meshed with the ring gear 5, and by driving the screw 9 to reciprocate, the screening hopper 2 can be driven to reciprocate, thereby achieving the purpose of screening materials.

[0052] The transmission assembly includes a transmission motor 22 installed on the bottom surface of the mixing tank 1, a rotating wheel 21 fixed to one end of the output shaft of the transmission motor 22, a transmission rack 12 arranged directly below the mounting plate 11, and a linkage member installed on the rotating wheel 21 for driving the transmission rack 12 to reciprocate. The bottom of the screw 9 extends to the bottom of the mounting plate 11 and is fixed with a linkage gear 14 meshing with the transmission rack 12. The peripheral movable sleeve of the transmission rack 12 is provided with a plurality of fixed sleeves 13, and the fixed sleeves 13 are connected to the mounting plate 11 through a connecting rod. The bottom surface of the mounting plate 11 is fixed, and the linkage member includes a toggle column 20 fixed at a position deviating from the center of the bottom surface of the rotating wheel 21 and a fixed frame 15 movably sleeved on the outer periphery of the toggle column 20. One end of the transmission rack 12 is fixedly connected to one long side of the fixed frame 15. The rotating wheel 21 is driven to rotate by the transmission motor 22. After the rotating wheel 21 rotates, it drives the fixed frame to move back and forth, thereby driving the transmission rack 12 to move back and forth. The transmission rack 12 then drives the linkage gear 14 to rotate, thereby achieving the purpose of driving the screw 9 to rotate back and forth.

[0053] The transmission mechanism includes a screw sleeve 7 threadedly sleeved on the outer periphery of the screw 9, a tooth plate 24 fixed to the bottom surface of the screw sleeve 7 and a transmission shaft 25 rotatably connected to the outer wall of the mixing tank 1. A driven bevel gear is fixed to the bottom of the fixed shaft 3. The bottom of the transmission shaft 25 extends to the inner side of the mixing tank 1 and is an active bevel gear meshing with the driven bevel gear. A ratchet 8 is fixed to the other end of the transmission shaft 25. A plurality of ratchet teeth meshing with the ratchet 8 are installed on the outer wall of the tooth plate 24. A gear is provided at the bottom of the screw sleeve 7 to mesh with the screw. 9 is arranged in the same direction, and a limiting rod 10 is fixed on the top surface of the mounting plate 11 and arranged in the same direction as the screw rod 9, and the top of the limiting rod 10 passes through the through hole and is in sliding connection with the screw sleeve 7. When the screw rod 9 reciprocates, it will drive the screw sleeve 7 to move up and down. When the screw sleeve 7 moves downward, the ratchet teeth can be used to drive the ratchet 8 to rotate, thereby causing the transmission shaft 25 to rotate, and the transmission shaft 25 drives the fixed shaft 3 to rotate. When the screw sleeve 7 moves upward, the ratchet 8 does not rotate, thereby achieving the purpose of intermittently driving the partition 4 to rotate.

[0054] The implementation principle of this embodiment is as follows: when preparing the slurry, the solid raw material is put into the screening hopper 2, and the liquid raw material is directly put into the stirring tank 1 through the feeding port 17. When the transmission motor 22 is started, the stirring motor 19 is also started. The stirring motor 19 rotates to drive the stirring paddle to rotate, thereby stirring the raw materials in the stirring tank 1. After the transmission motor 22 rotates, it can drive the transmission rack 12 to move back and forth, and the reciprocating movement of the transmission rack 12 drives the screw 9 to reciprocate, and the driving gear 6 rotates synchronously with the screw 9, and then the reciprocating rotation of the driving gear 6 drives the gear ring 5 to reciprocate, and then the screening hopper 2 can be driven to reciprocate, so that the raw materials in the screening hopper 2 can be screened;

[0055] The raw materials put into the screening hopper 2 are in different screening areas, and the qualified materials fall into the sub-hopper 27, while the unqualified materials continue to stay in the screening area. The raw materials falling into the sub-hopper 27 are then dispersed and put into the mixing tank 1 through multiple drop holes 34;

[0056] Under the restriction of the limit rod 10, the screw rod 9 will drive the screw sleeve 7 to move up and down while reciprocating. When the screw sleeve 7 moves downward, the ratchet teeth can drive the ratchet 8 to rotate, and then drive the transmission shaft 25 to rotate. The transmission shaft 25 then drives the fixed shaft 3 to rotate, and the fixed shaft 3 then drives the partition 4 to rotate, so that the unqualified materials retained in the screening area are pushed to the position of the discharge hole 23. Finally, the unqualified materials are discharged from the discharge hole 23 and fall into the receiving trough 18, and then discharged through the opening of the receiving trough 18. When the screw sleeve 7 moves upward, the ratchet 8 does not rotate, thereby achieving the purpose of intermittently driving the partition 4 to rotate, so that the raw materials can stay in the screening area for a longer time, which is conducive to cleaning.

[0057] Embodiment 2:

[0058] Combination Figure 3 - Figure 4 Based on Example 1, this embodiment is further improved in that: the bottom inner wall of the dividing hopper 27 is a conical structure, and the multiple drop holes 34 are all opened at the bottom edge of the dividing hopper 27. The outer periphery of the fixed shaft 3 is fixed with a dividing plate 28 located in the dividing hopper 27. The bottom surface of the dividing plate 28 is in contact with the bottom inner wall of the dividing hopper 27, and the other end of the dividing plate 28 is in contact with the inner circle of the dividing hopper 27. The fixed shaft 3 will drive the dividing plate 28 to rotate while rotating, so that the raw materials in the dividing hopper 27 can be dispersed into the multiple drop holes 34 for discharge, thereby avoiding the raw materials remaining in the dividing hopper 27.

[0059] The implementation principle of this embodiment is: the fixed shaft 3 will drive the distribution plate 28 to rotate while rotating, so that the raw materials in the distribution hopper 27 can be dispersed into multiple discharge holes 34, thereby preventing the raw materials from falling into the mixing tank 1 and accumulating in a certain place, and also preventing the raw materials from remaining in the distribution hopper 27.

[0060] Embodiment 3:

[0061] Combination Figure 3 - Figure 4 Based on Example 1, this embodiment is further improved in that: a scraping mechanism is installed inside the mixing tank 1, and the scraping mechanism includes a gear ring 26 rotatably sleeved on the inner ring of the mixing tank 1, a vertical scraper 32 fixed on the bottom surface of the gear ring 26, and a horizontal scraper 33 fixed on the bottom of the vertical scraper 32, the long side of the vertical scraper 32 is in contact with the inner ring of the mixing tank 1, the long side of the horizontal scraper 33 is in contact with the inner wall of the bottom of the mixing tank 1, and one end of the horizontal scraper 33 is in contact with the mixing shaft 29, and a transmission gear 31 is sleeved on the outer periphery of the transmission shaft 25, and the transmission gear 31 is located on the top surface of the gear ring 26 and meshes with it.

[0062] The working principle of this embodiment is as follows: the transmission shaft 25 rotates while driving the transmission gear 31 to rotate, the transmission gear 31 then drives the gear ring 26 to rotate, and the gear ring 26 rotates and drives the vertical scraper 32 and the horizontal scraper 33 to rotate, so that the vertical scraper 32 can be used to scrape off the raw materials attached to the inner circle of the mixing tank 1, and the horizontal scraper 33 can be used to scrape up the raw materials attached to the inner wall of the bottom of the mixing tank 1 to avoid sticking to the bottom.

[0063] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A slurry preparation device for separation layer grouting, characterized in that: include: The stirring mechanism comprises a stirring tank and a stirring paddle installed inside the stirring tank, and a discharge port is provided at the bottom of the stirring tank; The screening mechanism comprises a material distribution hopper fixed on the top of the mixing tank, a screening hopper rotatably connected to the top of the material distribution hopper, and a gear ring sleeved on the outer periphery of the screening hopper, a screen is installed inside the screening hopper, a fixed shaft is rotatably connected to the center of the screen, a plurality of partitions are evenly fixed on the outer periphery of the fixed shaft, the bottom of the fixed shaft passes through the material distribution hopper and extends to the inner side of the mixing tank, a discharge hole is opened on the outer peripheral edge of the screening hopper, a material receiving trough is fixed on the outer periphery of the discharge hole, and a plurality of drop holes are opened on the bottom of the material distribution hopper; The shaking mechanism includes a mounting plate fixed on the outer wall of the mixing tank, a screw rotatably connected to the top surface of the mounting plate, a driving gear fixed to the top surface of the screw, and a transmission assembly mounted on the bottom surface of the mixing tank for driving the screw to reciprocate, wherein the driving gear is meshed with a gear ring; The transmission mechanism includes a screw sleeve threadedly sleeved on the outer periphery of the screw, a tooth plate fixed on the bottom surface of the screw sleeve and a transmission shaft rotatably connected to the outer wall of the mixing tank. The bottom of the transmission shaft extends to the inner side of the mixing tank and is transmission-connected to the bottom of the fixed shaft. A ratchet is fixed to the other end of the transmission shaft, and a plurality of ratchet teeth meshing with the ratchet are installed on the outer wall of the tooth plate.

2. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: A through hole is provided at the bottom of the screw sleeve in the same direction as the screw rod, a limiting rod is fixed on the top surface of the mounting plate in the same direction as the screw rod, and the top of the limiting rod passes through the through hole and is in sliding connection with the screw sleeve.

3. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: The transmission assembly includes a transmission motor installed on the bottom surface of the mixing tank, a rotating wheel fixed on one end of the output shaft of the transmission motor, a transmission rack arranged directly below the mounting plate, and a linkage member installed on the rotating wheel for driving the transmission rack to reciprocate. The bottom of the screw rod extends to the bottom of the mounting plate and is fixed with a linkage gear meshing with the transmission rack. The peripheral movable sleeve of the transmission rack is provided with a plurality of fixed sleeves, and the fixed sleeves are fixedly connected to the bottom surface of the mounting plate through connecting rods.

4. The slurry preparation equipment for separation layer grouting according to claim 3, characterized in that: The linkage member comprises a toggle post fixed on the bottom surface of the rotating wheel at a position deviating from the center of the circle and a fixed frame movably sleeved on the outer periphery of the toggle post, and one end of the transmission rack is fixedly connected to one long side of the fixed frame.

5. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: The interiors of the screening hopper and the dividing hopper are both circular structures, the receiving trough is arranged obliquely, and an opening is arranged at one end of the receiving trough which is inclined downward.

6. The slurry preparation equipment for separation layer grouting according to claim 5, characterized in that: The inner wall of the bottom of the material distribution hopper is a conical structure, and the plurality of material drop holes are all arranged at the bottom edge of the material distribution hopper.

7. The slurry preparation equipment for separation layer grouting according to claim 6, characterized in that: A dividing plate located in the dividing hopper is fixed to the outer periphery of the fixed shaft, the bottom surface of the dividing plate is in contact with the bottom inner wall of the dividing hopper, and the other end of the dividing plate is in contact with the inner ring of the dividing hopper.

8. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: The stirring paddle comprises a stirring shaft rotatably connected to the inner wall of the bottom of the stirring tank and a plurality of stirring rods fixed on the outer periphery of the stirring shaft. A stirring motor for driving the stirring shaft to rotate is installed on the bottom surface of the stirring tank.

9. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: A feeding port is provided on the top surface of the stirring tank, and a sealing cover is hingedly connected to one side of the feeding port.

10. The slurry preparation equipment for separation layer grouting according to claim 1, characterized in that: A bottom scraping mechanism is installed inside the mixing tank, and the bottom scraping mechanism includes a gear ring rotatably sleeved on the inner ring of the mixing tank, a vertical scraper fixed on the bottom surface of the gear ring, and a horizontal scraper fixed on the bottom of the vertical scraper. The long side of the vertical scraper is in contact with the inner ring of the mixing tank, and the long side of the horizontal scraper is in contact with the inner wall of the bottom of the mixing tank. A transmission gear is sleeved on the outer periphery of the transmission shaft, and the transmission gear is located on the top surface of the gear ring and meshed with it.