A cleanable fluidized solidified soil conveying structure

By introducing a dispersing mechanism and a rotating spraying mechanism into the screw conveyor, the cleaning problems of the screw auger and the discharge pipe are solved, achieving efficient cleaning and anti-clogging of the screw auger blade surface and the discharge pipe, and improving the convenience of conveying fluidized solidified soil.

CN224428958UActive Publication Date: 2026-06-30NANJING ROAD & BRIDGE ENG CORP +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING ROAD & BRIDGE ENG CORP
Filing Date
2025-09-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

When conveying fluidized solidified soil, existing screw conveyors are prone to problems such as the screw auger and discharge pipe being difficult to clean due to material adhesion.

Method used

A fluidized solidified soil conveying structure including a dispersion mechanism and a rotary spraying mechanism was designed. The spiral auger, sliding sleeve and spraying pipe are driven by a drive motor to move synchronously, so as to clean the surface of the spiral auger blades and the discharge pipe and prevent clogging.

Benefits of technology

It improves the ease of cleaning the auger and discharge pipe, ensures the slump of the fluidized solidified soil during transportation, and reduces cleaning difficulty and power consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fluidized solidified soil conveying structure that is easy to clean, belonging to the field of fluidized solidified soil technology. It includes a cylinder and a spiral auger rotatably installed inside the cylinder. A drive motor coaxially connected to the spiral auger is located at the bottom of the cylinder. A feed hopper is connected to the top surface of the bottom of the cylinder, and a discharge pipe is connected to the bottom surface of the top of the cylinder. A dispersing mechanism cooperating with the spiral auger is located at the bottom of the discharge pipe. A rotating spraying mechanism cooperating with the dispersing mechanism is located inside the cylinder. Through the coordinated action of the dispersing mechanism and the rotating spraying mechanism, and driven by the drive motor, the spiral auger, sliding sleeve, dispersing block, and spray pipe move synchronously, thereby achieving reciprocating rotating spraying from multiple spray pipes. This provides thorough rotational rinsing of the spiral auger blade surface and the connection gap between the blade and the shaft, effectively improving the thoroughness of the cleaning process.
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Description

Technical Field

[0001] This utility model belongs to the field of fluidized solidified soil technology, specifically relating to a fluidized solidified soil conveying structure that is easy to clean. Background Technology

[0002] Fluidized solidified soil is a new type of engineering material that is made by mixing soil, solidifying agent, water and necessary additives in a certain proportion. It has good fluidity and post-curing strength and is widely used in civil engineering fields such as foundation treatment, foundation pit backfilling, roadbed subbase, and pipeline backfilling. In the conveying operation of fluidized solidified soil, screw conveyors are widely used due to their compact structure and adaptability to small space conveying.

[0003] In existing technologies, fluidized solidified soil, as a viscous material containing cementitious materials, sand particles, and moisture, is prone to settling due to gravity and viscous adsorption during transportation. This can lead to adhesion on the blade surface of the screw conveyor and in the connection gap between the blade and the shaft. Furthermore, the discharge pipe of the screw conveyor, as the terminal channel for the output of fluidized solidified soil, usually adopts a conical contraction structure design. As the inner diameter of the conical discharge pipe gradually decreases, the extrusion of material at the outlet is enhanced, resulting in an increase in the amount of material adhering to the pipe wall. This significantly increases the difficulty of cleaning the screw conveyor and the discharge pipe. Therefore, we propose a fluidized solidified soil conveying structure that is easier to clean. Utility Model Content

[0004] The purpose of this invention is to provide a fluidized solidified soil conveying structure that is easy to clean, in order to solve the problem mentioned in the background art that the screw conveyor and discharge pipe are not easy to clean after conveying fluidized solidified soil.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fluidized solidified soil conveying structure that is easy to clean, comprising a cylinder and a spiral auger rotatably installed inside the cylinder. A drive motor coaxially connected to the spiral auger is provided at the bottom of the cylinder. A feed hopper is connected to the top surface of the bottom of the cylinder, and a discharge pipe is connected to the bottom surface of the top of the cylinder. A dispersing mechanism cooperating with the spiral auger is provided at the bottom of the discharge pipe, and a rotating spraying mechanism cooperating with the dispersing mechanism is provided inside the cylinder.

[0006] It should be noted in the scheme that the dispersing mechanism includes a sliding sleeve that is slidably sleeved on the outer surface of the discharge pipe. A dispersing block is fixed at the center of the inner wall of the sliding sleeve. Two guide sleeves that are symmetrically distributed are fixed on the outer surface of the cylinder. An L-shaped rod is slidably inserted through the inner wall of each guide sleeve. The bottom ends of the two L-shaped rods are fixed to the outer surface of the sliding sleeve. A connecting ring is fixed to the top ends of the two L-shaped rods. A turntable that is coaxially fixed with the auger is provided on the outer side of the cylinder. A rotating column that is fixed to the outer surface of the turntable is provided inside the connecting ring.

[0007] It is worth noting that the top and bottom outer surfaces of the dispersion block are both tapered, and the bottom inner wall of the sliding sleeve is adapted to the tapered surface of the dispersion block.

[0008] Furthermore, it should be noted that the rotary spraying mechanism includes an insert post detachably connected to the rotating column. A swing gear is rotatably mounted on the outer surface of the cylinder above the insert post. A swing groove that cooperates with the insert post is opened on the bottom outer surface of the swing gear. A rotating gear is meshed above the swing gear. Multiple rinsing pipes distributed at equal angles are fixedly sleeved on the outer surface of the rotating gear. A spraying area is connected to the top outer surface of the cylinder. The ends of the multiple rinsing pipes extend into the interior of the spraying area.

[0009] In a preferred embodiment, the outer surface of the rotating column is provided with a cross slot, and the outer surface of the insertion column is provided with a cross protrusion that matches the cross slot.

[0010] In a preferred embodiment, the outer surface of the cylinder is provided with an arc-shaped groove that mates with the flushing pipes, and a sealing sleeve is fitted onto the outer surface of the arc-shaped groove. The outer surfaces of multiple flushing pipes are all fixedly fitted inside the sealing sleeve.

[0011] Compared with the prior art, the fluidized solidified soil conveying structure provided by this utility model, which is easy to clean, has at least the following beneficial effects:

[0012] (1) Through the cooperation of the dispersing mechanism and the rotary spraying mechanism, and driven by the drive motor, the spiral auger, sliding sleeve, dispersing block and spray pipe can move synchronously, thereby realizing the reciprocating rotary spraying of multiple spray pipes, which can fully rotate and wash the surface of the spiral auger blades and the connection gap between the blades and the shaft, effectively improving the thoroughness of cleaning the spiral auger. At the same time, the up and down reciprocating motion of the dispersing block and the sliding sleeve can prevent the discharge pipe from clogging. Combined with the rinsing of the spray liquid, the rotary auger and the discharge pipe can be conveniently rinsed, greatly improving the convenience of cleaning.

[0013] (2) The setting of the rotary spraying mechanism is to input a small amount of liquid into the spray pipe to perform reciprocating oscillating liquid replenishment treatment on the fluidized solidified soil, thereby ensuring the slump of the fluidized solidified soil during screw conveying and thus ensuring the convenience of the fluidized solidified soil during screw conveying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the spiral auger of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0017] Figure 4 This is a partial structural diagram of the dispersed block of this utility model;

[0018] Figure 5 For the present utility model Figure 4 A magnified structural diagram of region B in the middle.

[0019] In the diagram: 1. Cylinder; 2. Spiral auger; 3. Drive motor; 4. Feed hopper; 5. Discharge pipe; 6. Sliding sleeve; 7. Dispersing block; 8. Guide sleeve; 9. L-shaped rod; 10. Connecting ring; 11. Turntable; 12. Rotating column; 13. Insert column; 14. Swing gear; 15. Swing groove; 16. Rotating gear; 17. Flushing pipe; 18. Spray zone; 19. Arc groove; 20. Sealing sleeve rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a fluidized solidified soil conveying structure that is easy to clean, including a cylinder 1 and a spiral auger 2 rotatably installed inside the cylinder 1. A drive motor 3 coaxially connected to the spiral auger 2 is provided at the bottom of the cylinder 1. A feed hopper 4 is connected to the bottom and top surface of the cylinder 1. A discharge pipe 5 is connected to the top and bottom surface of the cylinder 1. A dispersing mechanism cooperating with the spiral auger 2 is provided at the bottom of the discharge pipe 5. A rotary spraying mechanism cooperating with the dispersing mechanism is provided inside the cylinder 1.

[0022] It should be noted that during the screw conveying of the fluidized solidified soil, the fluidized solidified soil enters the cylinder 1 through the feed hopper 4. Driven by the drive motor 3, the screw conveyor 2 pushes the fluidized solidified soil in the cylinder 1, so that the fluidized solidified soil is conveyed and discharged from the discharge pipe 5 at the top of the cylinder 1. The dispersion mechanism is set up and operates synchronously with the screw conveyor 2 to disperse and prevent blockage of the fluidized solidified soil discharged through the discharge pipe 5, thereby avoiding the fluidized solidified soil from adhering to the pipe wall of the discharge pipe 5, effectively reducing the difficulty of subsequent cleaning. At the same time, the method of dispersing the fluidized solidified soil can effectively avoid splashing or excessive local impact caused by height difference, thereby improving the safety of conveying and discharging the fluidized solidified soil.

[0023] The rotary spraying mechanism can provide water replenishment during the spiral conveying of fluidized solidified soil when the slump decreases, thus ensuring the convenience of spiral conveying. After the fluidized solidified soil is conveyed, it can also be used to rotate and wash the blade surface of the spiral auger 2 and the connection gap between the blade and the shaft. At the same time, the dispersing mechanism can also perform anti-clogging cleaning of the discharge pipe 5, further improving the convenience of cleaning the spiral auger 2 and the discharge pipe 5.

[0024] Further as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the dispersing mechanism includes a sliding sleeve 6 that is slidably sleeved on the outer surface of the discharge pipe 5. A dispersing block 7 is fixed at the center of the inner wall of the sliding sleeve 6. Two guide sleeves 8 are fixed on the outer surface of the cylinder 1 in a symmetrical arrangement. An L-shaped rod 9 is slidably passed through the inner wall of each guide sleeve 8. The bottom ends of the two L-shaped rods 9 are fixed to the outer surface of the sliding sleeve 6. A connecting ring 10 is fixed to the top of the two L-shaped rods 9. A turntable 11 is provided on the outer side of the cylinder 1 and is coaxially fixed to the spiral auger 2. A rotating column 12 is provided inside the connecting ring 10 and is fixed to the outer surface of the turntable 11.

[0025] It should be noted that a discharge block is provided in the middle of the dispersion block 7. The dispersion block 7 is fixed to the inner wall of the sliding sleeve 6 through the discharge block. The surface of the discharge block is provided with multiple discharge holes distributed at equal angles, which are used to disperse and discharge the fluidized solidified soil.

[0026] It should be noted that the turntable 11 rotates synchronously with the auger 2, causing the rotating column 12 to rotate synchronously as well. Since the connecting ring 10 is sleeved on the outer periphery of the rotating column 12, and the connecting ring 10 guides the L-shaped rod 9 through the guide sleeve 8, the rotating column 12, driven by the rotation of the turntable 11, can drive the L-shaped rod 9 to move up and down reciprocally within the guide sleeve 8. This causes the sliding sleeve 6 and the dispersing block 7 to move up and down reciprocally. The fluidized solidified soil discharged through the discharge pipe 5 is dispersed and prevented from clogging by the up and down movement of the dispersing block 7, thereby improving the discharge convenience of the fluidized solidified soil to a certain extent. At the same time, the up and down reciprocating movement of the sliding sleeve 6 can effectively prevent the fluidized solidified soil from splashing during discharge.

[0027] Further as Figure 3 and Figure 4 As shown, it is worth noting that the top and bottom outer surfaces of the dispersion block 7 are both cone-shaped, which further improves the dispersion effect on the fluidized solidified soil. The bottom inner wall of the sliding sleeve 6 is adapted to the cone surface of the dispersion block 7, which to a certain extent improves the convenience of the fluidized solidified soil being discharged from the bottom of the sliding sleeve 6 and the dispersion block 7.

[0028] Further as Figure 1 , Figure 3 and Figure 5 As shown, it is worth noting that the rotary spraying mechanism includes a plug 13 detachably connected to the rotating column 12. A swing gear 14 is rotatably mounted on the outer surface of the cylinder 1 above the plug 13. A swing groove 15 that cooperates with the plug 13 is opened on the bottom outer surface of the swing gear 14. A rotating gear 16 is meshed above the swing gear 14. A plurality of flushing pipes 17 distributed at equal angles are fixedly sleeved on the outer surface of the rotating gear 16. A spraying area 18 is connected to the top outer surface of the cylinder 1. The ends of the plurality of flushing pipes 17 extend into the interior of the spraying area 18.

[0029] It should be noted that the insertion post 13 rotates synchronously with the rotating post 12. Since the insertion post 13 always swings within the swing groove 15, it drives the swing gear 14 to swing back and forth around the cylinder 1. Through the meshing of the swing gear 14 and the rotating gear 16, the rotating gear 16 also swings back and forth, thereby causing the spray pipe to swing back and forth within the spray area 18. This effectively increases the contact area between the spray water and the blade surface of the auger 2, as well as the connection gap between the blade and the shaft. In conjunction with the different rotation speeds of the auger 2, it improves the thoroughness of cleaning the blade surface and the connection gap between the blade and the shaft of the auger 2.

[0030] It should be noted that the ends of multiple spray pipes are connected to a liquid collection tank. The inlet of the liquid collection tank is connected to an external liquid delivery mechanism through a hose, so as to ensure that the multiple spray pipes are not interfered with when they swing back and forth with the rotating gear 16.

[0031] Further as Figure 1 and Figure 5 As shown, it is worth noting that the outer surface of the rotating column 12 is provided with a cross slot, and the outer surface of the insertion column 13 is provided with a cross protrusion that matches the cross slot.

[0032] It should be noted that when the slump of the fluidized solid soil decreases, the rotating column 12 and the insert column 13 are connected. A small amount of liquid can be introduced into the spray pipe to perform reciprocating oscillating liquid replenishment treatment on the fluidized solid soil, thereby ensuring the slump of the fluidized solid soil during screw conveying and thus ensuring the convenience of the fluidized solid soil during screw conveying. When the fluidized solid soil does not require liquid replenishment treatment, the insert column 13 and the rotating column 12 can be separated. At this time, the rotating spray mechanism does not rotate synchronously with the screw auger 2, which can reduce the power loss of the screw auger 2 to a certain extent. When the fluidized solid soil is conveyed by screw conveying, the insert column 13 and the rotating column 12 are connected by the cross protrusion and the cross slot, so that the screw auger 2, the dispersing mechanism and the rotating spray mechanism can operate synchronously, thereby achieving the cleaning treatment of the blade surface of the screw auger 2, the connection gap between the blade and the shaft and the discharge pipe 5.

[0033] Further as Figure 3 and Figure 5 As shown, it is worth noting that the outer surface of the cylinder 1 is provided with an arc-shaped groove 19 that cooperates with the flushing pipe 17. A sealing sleeve 20 is fitted on the outer surface of the arc-shaped groove 19. The outer surfaces of multiple flushing pipes 17 are fixedly fitted inside the sealing sleeve 20. The arc-shaped groove 19 guides and limits the spray pipes, while the sealing sleeve 20 can improve the connection stability of multiple spray pipes and ensure the relative sealing of the arc-shaped groove 19.

[0034] The solution has the following working process: When the fluidized solidified soil is conveyed by a screw conveyor, the fluidized solidified soil enters from the feed hopper 4. At this time, the screw conveyor 2 can be driven by the drive motor 3 to rotate in the cylinder 1, so that the fluidized solidified soil is conveyed from the bottom of the cylinder 1 to the discharge pipe 5 for discharge and transfer.

[0035] When the fluidized solidified soil reaches the discharge pipe 5, the dispersing mechanism rotates synchronously with the screw conveyor 2, causing the sliding sleeve 6 and the dispersing block 7 to move up and down reciprocally. This disperses the fluidized solidified soil at the discharge pipe 5, which to some extent prevents the fluidized solidified soil from clogging. At the same time, it can reduce the discharge impact of the fluidized solidified soil and effectively prevent the fluidized solidified soil from splashing.

[0036] After the fluidized solidified soil is conveyed by a screw conveyor, the screw conveyor 2, sliding sleeve 6, dispersing block 7, and spray pipe move synchronously through the coordinated action of the dispersing mechanism and the rotating spraying mechanism, driven by the drive motor 3. This enables multiple spray pipes to reciprocate and rotate, thoroughly cleaning the surface of the screw conveyor 2 blades and the gaps between the blades and the shaft. This effectively improves the thoroughness of cleaning the screw conveyor 2. At the same time, the up-and-down reciprocating motion of the dispersing block 7 and the sliding sleeve 6 prevents blockage of the discharge pipe 5. Combined with the rinsing of the spray liquid, the rotating screw conveyor and the discharge pipe 5 are conveniently rinsed, greatly improving the ease of cleaning.

[0037] The drive motor 3 can be commercially available and equipped with a power supply. This is a mature technology in the field and has been fully disclosed, so it will not be repeated in the specification.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fluidized solidified soil conveying structure that is easy to clean, comprising a cylinder (1) and a spiral auger (2) rotatably installed inside the cylinder (1), wherein a drive motor (3) coaxially connected to the spiral auger (2) is provided at the bottom of the cylinder (1), characterized in that, The bottom and top surfaces of the cylinder (1) are connected to a feed hopper (4), the top and bottom surfaces of the cylinder (1) are connected to a discharge pipe (5), the bottom of the discharge pipe (5) is provided with a dispersing mechanism that cooperates with the spiral auger (2), and the inside of the cylinder (1) is provided with a rotating spraying mechanism that cooperates with the dispersing mechanism.

2. The easy-to-clean fluidized solidified soil conveying structure according to claim 1, characterized in that: The dispersing mechanism includes a sliding sleeve (6) that is slidably sleeved on the outer surface of the discharge pipe (5). A dispersing block (7) is fixed at the center of the inner wall of the sliding sleeve (6). Two guide sleeves (8) are fixed on the outer surface of the cylinder (1). An L-shaped rod (9) slides through the inner wall of each guide sleeve (8). The bottom ends of the two L-shaped rods (9) are fixed to the outer surface of the sliding sleeve (6). A connecting ring (10) is fixed to the top of the two L-shaped rods (9). A turntable (11) is set on the outer side of the cylinder (1) and is coaxially fixed with the spiral auger (2). A rotating column (12) is set inside the connecting ring (10) and is fixed to the outer surface of the turntable (11).

3. The easy-to-clean fluidized solidified soil conveying structure according to claim 2, characterized in that: The top and bottom outer surfaces of the dispersion block (7) are both tapered, and the bottom inner wall of the sliding sleeve (6) is adapted to the tapered surface of the dispersion block (7).

4. The easy-to-clean fluidized solidified soil conveying structure according to claim 2, characterized in that: The rotating spray mechanism includes a plug (13) detachably connected to the rotating column (12). A swing gear (14) is rotatably mounted on the outer surface of the cylinder (1) above the plug (13). A swing groove (15) that cooperates with the plug (13) is opened on the bottom outer surface of the swing gear (14). A rotating gear (16) is meshed above the swing gear (14). A plurality of flushing pipes (17) distributed at equal angles are fixedly sleeved on the outer surface of the rotating gear (16). A spray zone (18) is connected to the top outer surface of the cylinder (1). The ends of the plurality of flushing pipes (17) extend into the interior of the spray zone (18).

5. The easy-to-clean fluidized solidified soil conveying structure according to claim 4, characterized in that: The outer surface of the rotating column (12) is provided with a cross slot, and the outer surface of the insert column (13) is provided with a cross protrusion that matches the cross slot.

6. The easy-to-clean fluidized solidified soil conveying structure according to claim 4, characterized in that: The outer surface of the cylinder (1) is provided with an arc-shaped groove (19) that matches the flushing pipe (17). A sealing sleeve (20) is attached to the outer surface of the arc-shaped groove (19), and the outer surfaces of multiple flushing pipes (17) are fixedly sleeved inside the sealing sleeve (20).