Pre-mixed flow state solidified soil dust suppression vertical stirring device

Abstract

The invention belongs to the technical field of civil engineering material preparation, and particularly relates to a premixed flow state solidified soil dust suppression vertical stirring device which comprises a support, the inner side wall of the support is fixedly connected with a box body, the upper surface of the box body is fixedly provided with a regulation and control mechanism, and the side face of the box body is fixedly connected with a stirring bin through a connecting frame. An inner cylinder is fixedly mounted in the stirring bin, a dust suppression mechanism is embedded in an interlayer between the stirring bin and the inner cylinder, and a sliding groove in sliding connection with the stirring mechanism is formed in the inner side wall of the inner cylinder; through the arranged regulation and control mechanism, a large amount of dust can be generated in the process of stirring the flow-state solidified soil, the health of operators and the surrounding environment are influenced, water spraying during stirring is a main dust suppression means, and through the regulation and control mechanism, the water spraying flow speed can be increased in the initial stage of feeding or the stage of large dust generation amount, and powerful dust suppression is carried out; after the materials are fully wetted, the flow speed is reduced, excessive water adding is avoided, and accurate dust suppression can be achieved by spraying water according to needs.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of civil engineering material preparation, and particularly relates to a premixed fluidized solidified soil dust suppression vertical stirring device. BACKGROUND

[0002] The fluidized solidified soil is a new type of engineering backfill material formed by mixing waste soil, a solidifying agent, water and an additive in a certain proportion and stirring, and is widely applied in the fields of foundation pit backfilling and pipe gallery backfilling, and has the advantages of energy saving, environmental protection and high construction efficiency.

[0003] In the production process of the premixed fluidized solidified soil, stirring is a key process, and currently commonly used stirring equipment is a horizontal stirring machine, but in the stirring process, especially in the initial stage of feeding, the powdery solidifying agent and dry soil material are prone to generate a large amount of dust, causing serious environmental pollution and harming the health of operators, and the material loss is large, in addition, the horizontal stirring machine has a stirring dead zone, which easily leads to uneven mixing of the material and affects the final performance of the fluidized solidified soil.

[0004] Although some stirring equipment is equipped with a simple water spraying device, the dust suppression effect is limited, and improper control of the water spraying amount will affect the final water-cement ratio, resulting in unstable product quality, therefore, it is of great significance to develop a special stirring device that can efficiently mix and effectively suppress dust.

[0005] Therefore, the application provides a premixed fluidized solidified soil dust suppression vertical stirring device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background.

[0007] The technical scheme adopted by the application to solve the technical problems is that the premixed fluidized solidified soil dust suppression vertical stirring device comprises a support, an inner side wall of the support is fixedly connected with a box body, an upper surface of the box body is fixedly installed with a control mechanism, a side surface of the box body is fixedly connected with a stirring bin through a connecting frame, an inner portion of the stirring bin is fixedly installed with an inner cylinder, a dust suppression mechanism is embedded in a sandwich layer of the stirring bin and the inner cylinder, and a sliding groove of a stirring mechanism is slidably connected to an inner side wall of the inner cylinder. The control mechanism comprises a micro servo motor, the bottom of the micro servo motor is fixedly installed on the upper surface of the box body, the output end of the micro servo motor is spline-connected with a gear, the outer surface of the gear is engaged with an external gear, the surface of the external gear is provided with a groove, the inner portion of the groove is rotatably connected with an A positioning rod, the inner side wall of the external gear is rotatably connected with an adjusting rod through an A rotating rod, one end of the adjusting rod is rotatably connected with an opening and closing plate through a B rotating rod, and the surface of the opening and closing plate is rotatably connected with a B positioning rod.

[0008] As a preferred technical scheme of the present application, the dust suppression mechanism comprises an annular ring, the outer surface of the annular ring is embedded in the interlayer of the stirring bin and the inner cylinder, the inner side wall of the annular ring is fixedly installed with a spray head, the upper surface of the annular ring is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with an A water pump, and the input end of the A water pump is fixedly connected with a water inlet pipe.

[0009] As a preferred technical scheme of the present application, one end of the water inlet pipe is fixedly connected with a top cover, and the bottom of the top cover is rotatably connected to the upper surface of the outer gear.

[0010] As a preferred technical scheme of the present application, the bottom of the outer gear is rotatably connected with a bottom cover, the bottom of the bottom cover is fixedly connected with a water suction pipe, and the outer surface of the water suction pipe is inserted into the inside of the box body.

[0011] As a preferred technical scheme of the present application, the stirring mechanism comprises a servo motor, the outer surface of the servo motor is fixedly installed on the upper surface of the stirring bin, the output end of the servo motor is spline-connected with a threaded rod, and the outer surface of the threaded rod is threadedly connected with a threaded sleeve.

[0012] As a preferred technical scheme of the present application, the outer surface of the threaded sleeve is fixedly connected with a connecting ring through a support rod, the bottom of the connecting ring is fixedly connected with a spiral plate, the surface of the spiral plate is fixedly connected with a stirring rod along a spiral track, both sides of the connecting ring are fixedly connected with sliding blocks, and the outer surface of the sliding blocks is slidingly connected to the inside of the sliding groove.

[0013] As a preferred technical scheme of the present application, the bottom of the stirring bin is fixedly connected with a discharge pipe, the outer surface of the discharge pipe is fixedly installed with a control valve, and the upper surface of the stirring bin is provided with a feeding hole on one side.

[0014] As a preferred technical scheme of the present application, the periphery of the bottom of the support and the stirring bin is fixedly connected with a load-bearing rod, and the bottom of the load-bearing rod is fixedly connected with a universal wheel.

[0015] As a preferred technical scheme of the present application, the bottom of the box body is fixedly installed with a B water pump in the middle, the output end of the B water pump is fixedly connected with a flow pipe, and the input end of the B water pump is fixedly connected with a transmission pipe.

[0016] As a preferred technical scheme of the present application, the upper surface of the stirring bin is fixedly installed with a dust suction purifier, and the inner top wall of the stirring bin is provided with a dust suction hole.

[0017] The beneficial effects of the present application are as follows: 1. The premixed fluidized solidified soil dust suppression vertical mixing device of the present invention, through the set control mechanism, generates a large amount of dust during the mixing of fluidized solidified soil, which affects the health of operators and the surrounding environment. Spraying water is the main dust suppression method during mixing. Through the control mechanism, the water spraying flow rate can be increased in the early stage of feeding or in the stage of high dust generation for strong dust suppression. After the material is fully wetted, the flow rate can be reduced to avoid excessive water addition. The method of spraying water as needed can achieve precise dust suppression, which can effectively suppress dust flying and avoid the mixture becoming too thin due to blindly spraying a large amount of water. It avoids the phenomenon of local over-wetting or over-drying, so that the reaction between the solidifying agent and water is more complete, the mixing process is more efficient, and the mixing time required to reach the ideal state is shortened. 2. The premixed fluidized solidified soil dust suppression vertical mixing device of the present invention, through the combined use of a dust suppression mechanism and a dust collector, sprays fine water mist through a spray nozzle, which wets and increases the weight of dust particles in the air, causing them to lose their ability to fly and settle. The dust collector creates a negative pressure zone above the mixing chamber, actively capturing and removing dust-laden air that is about to escape or has already been raised. The two work simultaneously. Spraying makes it easier for dust to be captured, while the dust collector removes the wetted dust along with the air, forming a highly efficient closed loop of wetting, capturing, and then removing. It can handle dust of all sizes, from micron-sized to larger particles, and its dust suppression efficiency is far higher than that of a single method. It effectively solves the dust pollution problem during the mixing process, and through dual control at the source and during the process, it greatly reduces dust pollution and has outstanding environmental benefits. 3. The premixed fluidized solidified soil dust suppression vertical mixing device of the present invention, through the set mixing mechanism, the vertical mixing structure combined with specially designed multi-layer blades, forms strong convection, high mixing uniformity, no dead corners, ensuring the workability and strength stability of the fluidized solidified soil. When the spiral plate rises and falls, it can not only perform radial shearing on the material, but more importantly, it can generate strong axial and circumferential composite motion. The material is pushed from the bottom to the top by the spiral plate, and then falls back from the top to the bottom, forming a continuous and efficient convection cycle. It can effectively break the dead zone near the bottom and wall of the mixing tank, ensuring that all materials in the tank, including those near the tank wall and bottom, can be fully mixed, avoiding local agglomeration or uneven composition, thereby achieving highly uniform mixing. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the overall structure of a vertical mixing device for dust suppression of premixed fluidized solidified soil; Figure 2 This is a schematic diagram of the installation of spray heads in a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 3This is a schematic diagram of the installation of the spiral plate in a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 4 This is a schematic diagram of the installation of the opening and closing plate in a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 5 This is a cross-sectional schematic diagram of the inner cylinder of a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 6 This is a cross-sectional schematic diagram of the mixing chamber in a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 7 This is a cross-sectional schematic diagram of the casing in a vertical mixing device for dust suppression of premixed fluidized solidified soil. Figure 8 This is a schematic diagram of the installation of the dust suction port in a vertical mixing device for dust suppression of premixed fluidized solidified soil.

[0020] In the diagram: 1. Support frame; 2. Box body; 3. Connecting frame; 4. Mixing chamber; 5. Inner cylinder; 6. Miniature servo motor; 7. Gear; 8. External gear; 9. Positioning rod A; 10. Adjusting rod; 11. Opening and closing plate; 12. Positioning rod B; 13. Ring; 14. Spray head; 15. Connecting pipe; 16. Water pump A; 17. Water inlet pipe; 18. Top cover; 19. Bottom cover; 20. Water suction pipe; 21. Servo motor; 22. Threaded rod; 23. Threaded sleeve; 24. Frame rod; 25. Connecting ring; 26. Spiral plate; 27. Mixing rod; 28. Slider; 29. ​​Discharge pipe; 30. Control valve; 31. Load-bearing rod; 32. Casters; 33. Water pump B; 34. Flow pipe; 35. Transmission pipe; 36. Dust collector; 37. Dust suction port. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Reference Figure 1 - Figure 8 This invention provides two technical solutions: Example 1

[0023] A premixed fluidized solidified soil dust suppression vertical mixing device includes a support 1, a box 2 fixedly connected to the inner side wall of the support 1, an adjustment mechanism fixedly installed on the upper surface of the box 2, a mixing chamber 4 fixedly connected to the side of the box 2 through a connecting frame 3, an inner cylinder 5 fixedly installed inside the mixing chamber 4, a dust suppression mechanism embedded in the interlayer between the mixing chamber 4 and the inner cylinder 5, and a sliding groove for sliding connection of the mixing mechanism opened on the inner side wall of the inner cylinder 5. The control mechanism includes a micro servo motor 6, the bottom of which is fixedly mounted on the upper surface of the housing 2. A gear 7 is splined to the output end of the micro servo motor 6, and an external gear 8 meshes with the outer surface of the gear 7. A groove is formed on the surface of the external gear 8, and a positioning rod A rotatably connects to the inside of the groove. An adjusting rod 10 is rotatably connected to the inner wall of the external gear 8 via a rotating rod A. One end of the adjusting rod 10 is rotatably connected to an opening / closing plate 11 via a rotating rod B. A positioning rod B rotatably connects to the surface of the opening / closing plate 11. A large amount of dust is generated during the mixing of the fluidized solidified soil. Dust suppression is a major means of dust control during mixing, as it affects the health of operators and the surrounding environment. The control mechanism can increase the water flow rate at the initial stage of material feeding or when dust generation is high to provide strong dust suppression. After the material is fully wetted, the flow rate can be reduced to avoid excessive water addition. The on-demand water spraying method can achieve precise dust suppression, which can effectively suppress dust flying without causing the mixture to become too thin due to blindly spraying a large amount of water. It avoids the phenomenon of local over-wetting or over-drying, allowing the hardener and water to react more fully, making the mixing process more efficient, and shortening the mixing time required to reach the ideal state. Example 2

[0024] The dust suppression mechanism includes an annular ring 13. The outer surface of the annular ring 13 is embedded in the interlayer between the mixing chamber 4 and the inner cylinder 5. A spray head 14 is fixedly installed on the inner wall of the annular ring 13. A connecting pipe 15 is fixedly connected to the upper surface of the annular ring 13. One end of the connecting pipe 15 is fixedly connected to a water pump A 16. The input end of the water pump A 16 is fixedly connected to a water inlet pipe 17. Fine water mist is sprayed out through the spray head 14, which wets and increases the weight of dust particles in the air, causing them to lose their ability to fly and settle. The dust is then collected by the dust collector 36 while the mixing chamber is in motion. A negative pressure zone is formed above mixing chamber 4, which actively captures and removes dust-laden air that is about to escape or has already been raised. Both work simultaneously: spraying makes it easier for dust to be captured, while suction removes the moistened dust along with the air, forming a highly efficient closed loop of wetting, capturing, and then removing. It can handle dust ranging from micron-sized to larger particles, and its dust suppression efficiency is far higher than that of a single method. It effectively solves the dust pollution problem during the mixing process, and through dual control at the source and during the process, it greatly reduces dust pollution and has outstanding environmental benefits.

[0025] One end of the water inlet pipe 17 is fixedly connected to a top cover 18. The bottom of the top cover 18 is rotatably connected to the upper surface of the external gear 8. The bottom of the external gear 8 is rotatably connected to a bottom cover 19. The bottom of the bottom cover 19 is fixedly connected to a water suction pipe 20. The outer surface of the water suction pipe 20 is inserted into the inside of the housing 2. The top cover 18 and the bottom cover 19 serve as a connection, facilitating the connection of the water inlet pipe 17, the control mechanism, and the water suction pipe 20 to achieve a sealing effect.

[0026] The stirring mechanism includes a servo motor 21, whose outer surface is fixedly mounted on the upper surface of the stirring chamber 4. A threaded rod 22 is splined to the output end of the servo motor 21. A threaded sleeve 23 is threaded to the outer surface of the threaded rod 22. A connecting ring 25 is fixedly connected to the outer surface of the threaded sleeve 23 via a support rod 24. A spiral plate 26 is fixedly connected to the bottom of the connecting ring 25. A stirring rod 27 is fixedly connected to the surface of the spiral plate 26 along a spiral trajectory. Slider blocks 28 are fixedly connected to both sides of the connecting ring 25. The outer surface of the sliders 28 slidably connects to the inside of a groove. This vertical stirring structure, combined with a specially designed multi-... The layered blades create strong convection, resulting in high mixing uniformity and no dead zones, ensuring the workability and strength stability of the fluidized solidified soil. When the spiral plate 26 rises and falls, it not only performs radial shearing on the material, but more importantly, it generates strong axial and circumferential composite motion. The material is pushed from the bottom to the top by the spiral plate 26, and then falls back from the top to the bottom, forming a continuous and efficient convection cycle. This effectively breaks up the dead zones near the bottom and walls of the mixing tank, ensuring that all materials in the tank, including those near the tank walls and bottom, are fully involved in the mixing, avoiding local clumping or uneven composition, thereby achieving highly uniform mixing.

[0027] A discharge pipe 29 is fixedly connected to the bottom of the mixing chamber 4. A control valve 30 is fixedly installed on the outer surface of the discharge pipe 29. A feed hole is opened on one side of the upper surface of the mixing chamber 4. When it is necessary to release the material in the mixing chamber 4, the control valve 30 is activated to open the valve and the material flows out from the discharge pipe 29.

[0028] The support frame 1 and the mixing chamber 4 are both fixedly connected to the four sides of the bottom of the support frame 1 and the mixing chamber 4. The bottom of the support frame 31 is fixedly connected to the caster wheel 32, which can move the mixing device and improve the convenience of use.

[0029] A B-type water pump 33 is fixedly installed in the middle of the bottom of the housing 2. The output end of the B-type water pump 33 is fixedly connected to a flow pipe 34, and the input end of the B-type water pump 33 is fixedly connected to a transmission pipe 35. A dust collector 36 is fixedly installed on the upper surface of the mixing chamber 4. A dust collection hole 37 is opened in the inner top wall of the mixing chamber 4. The dust collector 36 forms a negative pressure zone above the mixing chamber 4, actively capturing and removing dust-laden air that is about to escape or has already been raised. Combined with spray dust suppression, the dust suppression efficiency is much higher than that of a single method, effectively solving the dust pollution during the mixing process. It provides dual control from the source and the process, greatly reducing dust pollution and achieving outstanding environmental benefits.

[0030] Working principle: The material is fed into the inner cylinder 5 of the mixing chamber 4 through the feed inlet. The servo motor 21 is started, and when the servo motor 21 rotates, it drives the threaded rod 22 to rotate. The threaded rod 22 drives the threaded sleeve 23 and the support rod 24 to move up and down. During the lifting and lowering, it drives the connecting ring 25 and the spiral plate 26 to move. The connecting ring 25 moves on the inner wall of the inner cylinder 5 through the slider 28, so that the spiral plate 26 drives the mixing rod 27 to move up and down at the same time, mixing the material. During the mixing, the transmission pipe 35 and the B water pump are used. Water is drawn in from the outside and flows through the flow pipe 34, filling the tank 2. Water pump A 16 is then activated, drawing water from the tank 2 through the inlet pipe 17. The water is then transmitted through the control mechanism to the connecting pipe 15, reaching the annular ring 13, and evenly sprayed from the spray nozzle 14 into the inner cylinder 5, forming a sealed dust suppression system. In the case of mixed materials, in addition to dust suppression through spraying, the dust is also collected and purified by the vacuum cleaner 36 through the suction hole 37. The two work together to suppress dust. The efficiency is far higher than that of a single method, effectively solving the dust pollution problem during the mixing process. Dual control at the source and during the process greatly reduces dust pollution, resulting in significant environmental benefits. Subsequently, during dust suppression spraying, the water flow rate can be adjusted as needed. The micro servo motor 6 is activated, driving the gear 7 to rotate. The gear 7 then rotates the external gear 8. The external gear 8, when rotating, achieves a stationary rotation effect via positioning rod A 9. This rotation also moves the adjusting rod 10, which pulls the opening and closing plate 11. Positioning rod B 12 allows the opening and closing plate 11 to be pulled on one side and rotated on the other, achieving a rotating opening and closing effect. This controls the water flow rate. The on-demand water spraying method achieves precise dust suppression, effectively inhibiting dust dispersion without causing the mixture to become too thin due to excessive water spraying. This avoids localized over-wetting or over-drying, allowing the hardener and water to react more fully, making the mixing process more efficient and shortening the mixing time required to reach the ideal state.

[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0032] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical mixing device for dust suppression of premixed fluidized solidified soil, characterized in that: Includes a support (1), a box (2) is fixedly connected to the inner wall of the support (1), an adjustment mechanism is fixedly installed on the upper surface of the box (2), a mixing chamber (4) is fixedly connected to the side of the box (2) through a connecting frame (3), an inner cylinder (5) is fixedly installed inside the mixing chamber (4), a dust suppression mechanism is embedded in the interlayer between the mixing chamber (4) and the inner cylinder (5), and a sliding groove for sliding connection of the mixing mechanism is opened on the inner wall of the inner cylinder (5); The control mechanism includes a micro servo motor (6), the bottom of which is fixedly installed on the upper surface of the housing (2). The output end of the micro servo motor (6) is splined with a gear (7). The outer surface of the gear (7) is meshed with an external gear (8). The surface of the external gear (8) has a groove. The inside of the groove is rotatably connected to a positioning rod (9). The inner sidewall of the external gear (8) is rotatably connected to an adjusting rod (10) via a rotating rod (A). One end of the adjusting rod (10) is rotatably connected to an opening and closing plate (11) via a rotating rod (B). The surface of the opening and closing plate (11) is rotatably connected to a positioning rod (12).

2. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 1, characterized in that: The dust suppression mechanism includes an annular ring (13), the outer surface of which is embedded in the interlayer between the mixing chamber (4) and the inner cylinder (5). A spray head (14) is fixedly installed on the inner side wall of the annular ring (13). A connecting pipe (15) is fixedly connected to the upper surface of the annular ring (13). A water pump (16) is fixedly connected to one end of the connecting pipe (15). A water inlet pipe (17) is fixedly connected to the input end of the water pump (16).

3. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 2, characterized in that: One end of the water inlet pipe (17) is fixedly connected to a top cover (18), and the bottom of the top cover (18) is rotatably connected to the upper surface of the external gear (8).

4. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 1, characterized in that: The bottom of the external gear (8) is rotatably connected to a bottom cover (19), and the bottom of the bottom cover (19) is fixedly connected to a water pump pipe (20). The outer surface of the water pump pipe (20) is inserted into the inside of the box body (2).

5. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 1, characterized in that: The stirring mechanism includes a servo motor (21), the outer surface of which is fixedly installed on the upper surface of the stirring chamber (4), and the output end of the servo motor (21) is splined connected to a threaded rod (22), and the outer surface of the threaded rod (22) is threadedly connected to a threaded sleeve (23).

6. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 5, characterized in that: The outer surface of the threaded sleeve (23) is fixedly connected to a connecting ring (25) via a support rod (24). A spiral plate (26) is fixedly connected to the bottom of the connecting ring (25). A stirring rod (27) is fixedly connected to the surface of the spiral plate (26) along the spiral trajectory. Slider blocks (28) are fixedly connected to both sides of the connecting ring (25). The outer surface of the slider (28) is slidably connected to the inside of the groove.

7. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 1, characterized in that: The bottom of the mixing chamber (4) is fixedly connected to a discharge pipe (29), and a control valve (30) is fixedly installed on the outer surface of the discharge pipe (29). A feed hole is opened on one side of the upper surface of the mixing chamber (4).

8. The premixed fluidized solidified soil dust suppression vertical mixing device according to claim 1, characterized in that: The support (1) and the mixing chamber (4) are both fixedly connected to the four sides of the bottom of the support (1) and the bottom of the mixing chamber (4) are fixedly connected to the universal wheels (32).

9. A vertical mixing device for dust suppression of premixed fluidized solidified soil according to claim 1, characterized in that: A B water pump (33) is fixedly installed in the middle of the bottom of the box (2). The output end of the B water pump (33) is fixedly connected to a flow pipe (34), and the input end of the B water pump (33) is fixedly connected to a transmission pipe (35).

10. A vertical mixing device for dust suppression of premixed fluidized solidified soil according to claim 1, characterized in that: A dust collector (36) is fixedly installed on the upper surface of the mixing chamber (4), and a dust collection hole (37) is opened on the inner top wall of the mixing chamber (4).

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