Solidified soil preparation device and technology based on waste
By combining crushing and kneading, the problem of insufficient mixing between the raw soil and the solidifying agent was solved, achieving efficient solidified soil preparation, reducing energy consumption, and improving mixing efficiency and the density of the raw soil.
Patent Information
- Application Number
- CN202510999243.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2025-10-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing mixing equipment, the mixing degree between raw soil and curing agent is low. In particular, raw soil with a certain viscosity is difficult to mix fully with curing agent, resulting in low efficiency and high energy consumption in the preparation of cured soil.
After the raw soil and the curing agent are crushed by the crushing mechanism, the kneading press and the rotating baffle work together. Driven by the driving mechanism, the kneading press moves towards the rotating baffle, kneading the curing agent into the raw soil. Combined with the conveying of the auger, efficient mixing is achieved. By adjusting the rotation of the kneading press and the compression state of the auger, the reciprocating rotation of the auger is reduced, thus reducing energy consumption.
It improves the mixing degree of the raw soil and the solidifying agent, enhances the viscosity and density of the raw soil, improves the overall strength and discharge efficiency of the solidified soil, and reduces energy consumption.
Smart Images
Figure CN120862858A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of soil preparation technology, specifically to a device and process for preparing solidified soil based on waste. Background Technology
[0002] Solidified soil is an engineering material that improves soil by adding a solidifying agent. It can significantly enhance the engineering performance of soil and is widely used in road construction, foundation treatment, environmental remediation, and other fields. Solidified soil refers to soil treatment through the addition of specific chemical agents or physical methods, which alters the structure between soil particles, thereby improving the soil's strength, stability, and durability. Its basic principle is that the solidifying agent reacts chemically with soil particles and moisture to form new cementing materials or fillers, improving the physical and chemical properties of the soil. Solidified soil typically consists of cement, raw soil, and a soil stabilizer. Cement accounts for 2%-12% of the total mass, raw soil accounts for 88%-99%, and the soil stabilizer accounts for 0.01%-0.03%. The soil stabilizer formulation includes components such as polyacrylamide, calcium chloride, and calcium carbonate, with the specific proportions adjusted according to project requirements.
[0003] When preparing solidified soil, the raw soil and the solidifying agent need to be mixed in a mixing device. In existing mixing devices, the raw soil and the solidifying agent are mixed by rotating the auger. However, in this mixing method, the degree of mixing between the raw soil and the solidifying agent is low. In particular, when mixing raw soil with a certain viscosity, the solidifying agent is difficult to mix into the raw soil, resulting in poor mixing and affecting the preparation efficiency of solidified soil. The existing solution is mainly to use a motor to continuously drive the auger to rotate back and forth to mix the raw soil and the solidifying agent, which results in high motor energy consumption. Summary of the Invention
[0004] The purpose of this invention is to provide a device and process for preparing solidified soil based on waste materials, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A waste-based solidified soil preparation device includes a base and a mixing chamber installed on the base, wherein a crushing mechanism is provided inside the mixing chamber, and further includes:
[0007] A transition chamber is connected to the lower end of the mixing chamber. A mixing cylinder is connected to the lower end of the transition chamber. A discharge port is provided at the end of the mixing cylinder away from the transition chamber.
[0008] The conveying shaft is coaxially rotatably connected to the mixing cylinder, and a spiral auger is sleeved around its periphery;
[0009] The rotating baffle is coaxially and slidably sleeved around the periphery of the conveying shaft and fixedly connected to one end of the spiral auger. The end of the rotating baffle away from the discharge port is coaxially provided with a recessed kneading groove, and the end face is provided with multiple through holes in the form of feed inlets.
[0010] The kneading and pressing seat is coaxially and slidably engaged with the mixing cylinder, and a kneading and pressing part is coaxially fixed to one end facing the rotating baffle. The kneading and pressing part is used in conjunction with the kneading and pressing groove.
[0011] A driving mechanism is provided in the mixing cylinder and is used to drive the kneading seat to move toward the rotating baffle, so that the kneading part is engaged in the kneading groove.
[0012] Through the above technical solution, the crushing mechanism crushes the raw soil and the curing agent. The crushed raw soil and curing agent fall into the mixing drum, and then the driving mechanism drives the kneading seat to move in the direction of the rotating baffle, so that the raw soil and curing agent can be kneaded by the kneading seat, thereby kneading the curing agent into the raw soil, improving the degree of mixing between the curing agent and the raw soil. In addition, through continuous kneading, the viscosity of the raw soil is increased, thereby improving the overall density and strength of the raw soil. The kneaded raw soil will enter the screw conveyor through the feed port and be transported to the discharge port by the screw conveyor. During the transportation process, the screw conveyor further mixes the raw soil and the curing agent without the need for the screw conveyor to rotate back and forth, thus reducing energy consumption.
[0013] Furthermore, the pulverizing mechanism includes two pulverizing rollers that are horizontally rotatably connected inside the mixing chamber. Gears are fixedly mounted on the ends of the two pulverizing rollers on the same side. The two gears mesh externally. One of the pulverizing rollers is driven to rotate by a motor installed on the outer wall of the mixing chamber.
[0014] The above technical solution involves a motor driving one of the crushing rollers to rotate, which in turn causes two gears to mesh and drive the other crushing roller to rotate as well. The two crushing rollers rotate in opposite directions, thereby enabling the raw soil fed into the mixing chamber to be crushed.
[0015] Furthermore, a feeding hopper is installed on top of the mixing hopper.
[0016] The above technical solution can prevent the soil and solidifying agent from overflowing from the top of the mixing bin during the feeding process if they are not crushed in time.
[0017] Furthermore, a fixed baffle is fixedly connected to one end of the conveying shaft near the discharge port. The fixed baffle is fixedly sleeved on the conveying shaft. The auger is slidably sleeved on the conveying shaft. The end of the auger away from the rotating baffle is fixedly connected to the end face of the fixed baffle. The rotating baffle is slidably sleeved on the conveying shaft and is keyed to the conveying shaft.
[0018] The above technical solution enables the auger to have a compression amplitude along the conveying shaft. When the kneading pressure of the kneading seat on the soil is too large, or when the soil viscosity is too high and it adheres to the surface of the auger and cannot be discharged smoothly, the auger will be in a compressed state, which will increase the shear force on the soil and allow the soil to fall off the surface of the auger, thereby improving the discharge efficiency of the soil.
[0019] Furthermore, a motor plate is installed at the end of the mixing cylinder away from the discharge port, and a drive motor is installed on the motor plate, which is drivenly connected to the conveyor shaft.
[0020] The above technical solution allows the conveyor shaft to rotate via a drive motor, and since the auger does not need to rotate back and forth, the energy consumption of the drive motor is low.
[0021] Furthermore, the driving mechanism includes a cylinder installed at the end of the mixing cylinder, a rotating plate is coaxially rotatably connected to the inner cavity of the kneading seat, and the cylinder rod of the cylinder slides through the mixing cylinder and is fixedly connected to the rotating plate.
[0022] Through the above technical solution, the rotating plate is driven by the cylinder to move along the axial direction of the conveying shaft, and the rotating plate is rotatably connected to the kneading seat, so that the kneading seat can be driven to reciprocate along the axial direction of the conveying shaft.
[0023] Furthermore, two balls are rotatably embedded around the periphery of the kneading seat, and a rolling groove is provided on the inner wall of the mixing cylinder for the two balls to engage together. When the balls roll in the rolling groove, the kneading seat rotates around the axis of the mixing cylinder, and the direction of rotation is opposite to the direction of rotation of the conveying shaft.
[0024] With the above technical solution, when the kneading press moves along the axial direction of the conveying shaft, the balls will roll in the rolling groove, thereby causing the kneading press to rotate around the axial direction of the conveying shaft, and the direction of rotation is opposite to the direction of rotation of the conveying shaft. This allows the kneading press to knead the plain soil that enters between the kneading press and the rotating baffle.
[0025] Furthermore, the end face of the kneading section is provided with multiple receiving cavities, and each inner wall on both sides of the receiving cavity is provided with a recessed sliding groove. A sliding block is slidably engaged in the sliding groove, and two adjacent sliding blocks are fixedly connected to a rotating shaft. The rotating shaft is rotatably fitted with a kneading roller, which freely passes through the receiving cavity. The kneading seat is provided with a kneading mechanism, which is used to drive the kneading roller to reciprocate along the axial direction of the kneading seat when the rotating plate rotates.
[0026] Through the above technical solution, the kneading roller kneads the subgrade soil, which increases the kneading pressure on the subgrade soil. In addition, the kneading mechanism makes the kneading roller reciprocate along the axial direction of the kneading seat, so that the kneading pressure of the kneading roller on the subgrade soil can be continuously changed, thereby improving the kneading efficiency.
[0027] Furthermore, the kneading mechanism includes a connecting rod fixed to the sliding block, the connecting rod slidably extending out of the kneading seat, and two adjacent connecting rods having a floating plate fixedly connected to their ends away from the sliding block. The floating plate has a mounting rod fixedly connected to it, and a roller is rotatably connected to the end of the mounting rod facing the rotating plate. The end face of the rotating plate has multiple arc-shaped protrusions fixedly connected to it, and the rollers cooperate with the arc-shaped protrusions. A spring is installed between the floating plate and the inner wall of the kneading seat, and the two ends of the spring in the direction of its elastic force are respectively fixed to the floating plate and the kneading seat.
[0028] With the above technical solution, when the rotating plate rotates relative to the rotating baffle, the roller will roll alternately on the surface of the arc protrusion and the rotating plate, thereby enabling the floating rod to generate reciprocating motion along the conveying shaft axis, which in turn drives the kneading roller to reciprocate.
[0029] A waste-based solidified soil preparation process, applied to the preparation apparatus described above, includes:
[0030] Plain soil and solidifying agent are put into the mixing chamber, and the plain soil is crushed by the crushing mechanism. After crushing, the plain soil and solidifying agent will fall into the mixing drum from the transition chamber.
[0031] The drive mechanism drives the kneading seat to move towards the rotating baffle, so that the kneading seat kneads the soil and hardener falling between the kneading seat and the rotating baffle, thereby allowing the soil and hardener to enter the kneading groove. Through kneading, the hardener penetrates into the soil. The kneaded soil and hardener will enter the space between the rotating baffle and the discharge port from the feed port.
[0032] The rotating conveyor shaft causes the auger to rotate, which in turn transports the soil and curing agent that enter between the rotating baffle and the discharge port. The soil and curing agent continue to mix during the transport process and then fall out of the discharge port.
[0033] Through the above technical solution,
[0034] Compared with the prior art, the beneficial effects of the present invention are:
[0035] 1. In this invention, the raw soil and the curing agent are crushed by a crushing mechanism. The crushed raw soil and the curing agent fall into the mixing drum. Then, the kneading seat is driven by a driving mechanism to move in the direction of the rotating baffle, so that the raw soil and the curing agent can be kneaded by the kneading seat, thereby kneading the curing agent into the raw soil and improving the mixing degree of the curing agent and the raw soil. In addition, through continuous kneading, the viscosity of the raw soil is increased, thereby improving the overall density and strength of the raw soil. The kneaded raw soil will enter the spiral auger through the feed port and be transported to the discharge port by the spiral auger. During the transportation process, the spiral auger further mixes the raw soil and the curing agent without the need for the spiral auger to rotate back and forth, thus reducing energy consumption.
[0036] 2. In this invention, the spiral auger can have a compression amplitude along the conveying shaft axis. This allows the spiral auger to be in a compressed state when the kneading pressure of the kneading seat on the soil is too large, or when the soil viscosity is too high and it adheres to the surface of the spiral auger and cannot be discharged smoothly. This increases the shear force on the soil, allowing the soil to fall off the surface of the spiral auger and thus improving the discharge efficiency of the soil.
[0037] 3. In this invention, when the kneading seat moves along the axial direction of the conveying shaft, the balls will roll in the rolling groove, thereby causing the kneading seat to rotate around the axial direction of the conveying shaft, and the direction of rotation is opposite to the direction of rotation of the conveying shaft. This allows the kneading seat to knead the soil that enters between the kneading seat and the rotating baffle. Attached Figure Description
[0038] Figure 1 This is a schematic diagram of the overall structure of a waste-based solidified soil preparation device according to the present invention;
[0039] Figure 2 for Figure 1 A diagram illustrating the positional relationships from a first-person perspective.
[0040] Figure 3 for Figure 1 A diagram illustrating the positional relationships from a second-person perspective;
[0041] Figure 4 This is a schematic diagram showing the positional relationship of the mixing cylinder, motor, and transition chamber after assembly in this invention;
[0042] Figure 5 for Figure 4 A schematic diagram showing the positional relationship of the middle section after it has been cut open;
[0043] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point A;
[0044] Figure 7 for Figure 4A schematic diagram showing the positional relationship of a partially dissected structure from another perspective;
[0045] Figure 8 This is a schematic diagram showing the positional relationship between the kneading seat and the rotating plate after assembly in this invention;
[0046] Figure 9 for Figure 8 A schematic diagram of the structural explosion decomposition from another perspective;
[0047] Figure 10 for Figure 9 Enlarged schematic diagram of the local structure at point B;
[0048] Figure 11 for Figure 9 Enlarged schematic diagram of the local structure at point C;
[0049] Figure 12 This is a schematic diagram showing the positional relationship of the kneading seat, kneading roller, and ball bearings after assembly in this invention;
[0050] Figure 13 for Figure 12 A schematic diagram showing the positional relationship of a partially dissected structure from another perspective;
[0051] Figure 14 This is a schematic diagram showing the positional relationship between the transition chamber and the mixing cylinder after assembly in this invention.
[0052] The following are explanations of the reference numerals in the figures: 1. Base; 2. Mixing cylinder; 3. Transition chamber; 4. Gear; 5. Feeding bin; 6. Crushing roller; 7. Motor; 8. Mixing bin; 9. Drive motor; 10. Motor plate; 11. Discharge port; 12. Cylinder; 13. Coupling; 14. Kneading seat; 15. Fixed baffle; 16. Conveyor shaft; 17. Spiral auger; 18. Rotating baffle; 19. Kneading groove; 20. Feed inlet; 21. Kneading section; 22. Ball bearing; 23. Rotating plate; 24. Annular protrusion; 25. Mounting rod; 26. Arc-shaped protrusion; 27. Receiving cavity; 28. Kneading roller; 29. Connecting rod; 30. Sliding groove; 31. Floating plate; 32. Spring; 33. Sliding block; 34. Roller; 35. Rolling groove. Detailed Implementation
[0053] 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.
[0054] Please see Figures 1-14This invention provides a technical solution: a solidified soil preparation device based on waste, including a base 1, a mixing chamber 8 installed on the base 1, a feeding chamber 5 installed on the top of the mixing chamber 8, two crushing rollers 6 are horizontally rotatably connected inside the mixing chamber 8 by bearings, and gears 4 are fixedly mounted on the ends of the two crushing rollers 6 on the same side, the two gears 4 mesh externally, one of the crushing rollers 6 is driven to rotate by a motor 7 installed on the outer wall of the mixing chamber 8, the motor 7 drives one crushing roller 6 to rotate, and the two gears 4 mesh to drive the other crushing roller 6 to rotate, so that the two crushing rollers 6 can rotate synchronously in opposite directions, a transition chamber 3 is installed at the lower end of the mixing chamber 8, the transition chamber 3 is in a through state with the interior of the mixing chamber 8, and a mixing cylinder 2 is connected through the lower end of the transition chamber 3, the end of the mixing cylinder 2 away from the transition chamber 3 is provided with a discharge port 11;
[0055] The two ends of the mixing cylinder 2 are connected to the conveying shaft 16 by bearings for horizontal rotation. A spiral auger 17 is slidably fitted on the part of the conveying shaft 16 located inside the mixing cylinder 2. A fixed baffle 15 is fixedly connected to one end of the spiral auger 17 near the discharge port 11. The fixed baffle 15 is coaxially and fixedly fitted onto the periphery of the conveying shaft 16. A rotating baffle 18 is fixedly connected to the other end of the spiral auger 17 and is slidably fitted onto the conveying shaft 16. The rotating baffle 18 is keyed to the conveying shaft 16, so that the rotating baffle 18 can slide on the periphery of the conveying shaft 16 and rotate synchronously with the conveying shaft 16. In addition, when a compressive force is applied to the rotating baffle 18 along the axial direction of the conveying shaft 16, the rotating baffle 18 can drive the spiral auger 17 to compress, so that the spiral auger 17 is in a compressed state and the pitch of the spiral auger 17 is reduced.
[0056] A recessed kneading groove 19 is coaxially formed at the end of the rotating baffle 18 away from the discharge port 11, and multiple through-hole feed ports 20 are formed on the end face. The kneading groove 19 and the feed ports 20 are in a through-hole state. A kneading seat 14 is coaxially and slidably engaged at the end of the mixing cylinder 2 away from the discharge port 11. In addition, a kneading part 21 is coaxially fixed to the end of the kneading seat 14 facing the rotating baffle 18. The kneading part 21 is used in conjunction with the kneading groove 19. Specifically, the inner diameter of the kneading groove 19 decreases sequentially in the direction away from the kneading seat 14. A motor plate 10 is installed at the end of the mixing cylinder 2 away from the discharge port 11. A drive motor 9 is installed on the motor plate 10. The motor shaft of the drive motor 9 is connected to the conveyor belt via a coupling 13. The conveying shaft 16 is driven and connected. A cylinder 12 is horizontally installed at the end of the mixing cylinder 2. A rotating plate 23 is coaxially rotatably connected to the inner cavity of the kneading seat 14. Specifically, the kneading seat 14 has a recessed inner cavity at the end opposite to the rotating baffle 18, and an annular protrusion 24 is coaxially fixed to the inner cavity wall. The annular protrusion 24 has an annular groove. The periphery of the rotating plate 23 is engaged in the groove and can rotate freely in the groove, so that the rotating plate 23 is coaxially rotatably connected to the kneading seat 14. The cylinder rod of the cylinder 12 slides through the mixing cylinder 2 and is fixed to the rotating plate 23, so that when the cylinder rod of the cylinder 12 extends or shortens, it can correspondingly drive the rotating plate 23 to move closer to or away from the discharge port 11.
[0057] Two balls 22 are rotatably embedded around the periphery of the kneading seat 14. A rolling groove 35 is formed in the inner wall of the mixing cylinder 2 for the two balls 22 to engage. When the balls 22 roll within the rolling groove 35, the kneading seat 14 rotates around the axial direction of the mixing cylinder 2, and the direction of rotation is opposite to the direction of rotation of the conveying shaft 16. Multiple receiving cavities 27 are formed on the end face of the kneading section 21. Recessed sliding grooves 30 are formed on the inner walls of each side of the receiving cavity 27. Sliding blocks 33 are slidably engaged within the sliding grooves 30. Two adjacent sliding blocks 33 are fixedly connected to a rotating shaft. A kneading roller 28 is rotatably mounted on the rotating shaft. The kneading roller 28 freely passes through the receiving cavity 27. A connecting rod 29 is fixedly connected to the wall of the sliding block 33. The connecting rod 29 slides out of the kneading seat 14, and the ends of two adjacent connecting rods 29 away from the sliding block 33 are fixedly connected to a floating plate 31. The floating plate 31 is fixedly connected to a mounting rod 25. The end of the mounting rod 25 facing the rotating plate 23 is rotatably connected to a roller 34. The end face of the rotating plate 23 is fixedly connected to multiple arc-shaped protrusions 26. The roller 34 and the arc-shaped protrusions 26 are used in conjunction. A spring 32 is installed between the floating plate 31 and the inner wall of the kneading seat 14. The two ends of the spring 32 in the direction of elastic force are fixedly connected to the floating plate 31 and the kneading seat 14 respectively. In the initial state, the spring 32 has an elastic pushing force on the floating plate 31, so that the floating plate 31 can move away from the kneading seat 14.
[0058] Working principle of the invention:
[0059] Plain soil and curing agent are put into feeding hopper 5 so that they can enter mixing hopper 8. At the same time, motor 7 is started, which drives one crushing roller 6 to rotate. In addition, two gears 4 mesh to drive the other crushing roller 6 to rotate. Thus, the two crushing rollers 6 can rotate synchronously in opposite directions, so that the two crushing rollers 6 can crush the plain soil and curing agent. In this embodiment, the curing agent can be obtained by recycling some waste materials, and no specific limitation is made here.
[0060] The crushed raw soil and curing agent fall from the transition chamber 3 into the mixing drum 2 and enter between the kneading seat 14 and the rotating baffle 18. The drive motor 9 starts and causes the conveying shaft 16 to rotate. When the conveying shaft 16 rotates, the rotating baffle 18 and the spiral auger 17 will rotate, and the cylinder rod of the cylinder 12 will extend, so that the rotating plate 23 can drive the kneading seat 14 to move closer to the rotating baffle 18, and cause the rotating baffle 18 to squeeze the raw soil and curing agent.
[0061] During the rotation of the kneading seat 14, the ball bearings 22 will roll in the rolling groove 35, enabling the kneading seat 14 to rotate. The rotation direction of the kneading seat 14 is opposite to the rotation direction of the conveying shaft 16. This allows the kneading roller 28 to knead the soil and the curing agent. In addition, during the rotation, the roller 34 will alternately roll on the surface of the arc-shaped protrusion 26 and the end face of the rotating plate 23. This makes the kneading process of the kneading roller 28 on the soil and the curing agent similar to the action of rolling dough. This increases the degree of mixing between the soil and the curing agent. The soil becomes more viscous and denser through kneading, thereby improving the mechanical strength and density of the soil. This allows most of the soil and curing agent between the kneading seat 14 and the rotating baffle 18 to be kneaded.
[0062] When the kneading section 21 squeezes the raw soil into the kneading trough 19, the soil experiences significant pressure, causing it to enter the auger 17 from the feed inlet 20. The continuous rotation of the auger 17 further mixes the soil and hardener, preventing insufficient mixing of even small amounts of soil and hardener. Additionally, the kneaded soil has a high viscosity and may adhere to the surface of the auger 17, hindering its smooth entry into the discharge outlet 11. As more soil adheres to the surface of the auger 17, more and more soil accumulates there, preventing the kneaded soil from entering the auger 17 from the feed inlet 20 in a timely manner. During kneading, the raw soil exerts a pushing force on the rotating baffle 18, causing the rotating baffle 18 to move towards the discharge port 11 and compressing the auger 17. That is, the pitch of the auger 17 decreases, which increases the shear force on the raw soil adhering to the surface of the auger 17, causing the raw soil to fall off the surface of the auger 17. This allows the auger 17 to smoothly transport the raw soil to the discharge port 11. In addition, since the auger 17 does not need to mix the raw soil and the curing agent by reciprocating rotation, the energy consumption of the drive motor 9 is lower while improving the mixing degree of the raw soil and the curing agent, thus improving the mixing efficiency of the raw soil and the curing agent.
[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. 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 variations 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 waste-based solidified soil preparation device, comprising a base (1) and a mixing chamber (8) installed on the base (1), wherein the mixing chamber (8) is provided with a crushing mechanism, characterized in that, Also includes: The transition chamber (3) is connected to the lower end of the mixing chamber (8). The lower end of the transition chamber (3) is connected to the mixing cylinder (2). The mixing cylinder (2) is provided with a discharge port (11) at the end away from the transition chamber (3). The conveying shaft (16) is coaxially rotatably connected to the mixing cylinder (2), and a spiral auger (17) is sleeved around its periphery. Rotating baffle (18) is coaxially and slidably sleeved around the periphery of the conveying shaft (16) and fixed to one end of the spiral auger (17). The end of the rotating baffle (18) away from the discharge port (11) is coaxially provided with a recessed kneading groove (19) and the end face is provided with multiple through holes in the form of feed inlets (20). The kneading seat (14) is coaxially and slidably fitted onto the mixing cylinder (2), and a kneading part (21) is coaxially fixed to one end facing the rotating baffle (18). The kneading part (21) is used in conjunction with the kneading groove (19). A driving mechanism is provided in the mixing cylinder (2) and is used to drive the kneading seat (14) to move toward the rotating baffle (18) so that the kneading part (21) is engaged in the kneading groove (19).
2. The waste-based solidified soil preparation device according to claim 1, characterized in that, The crushing mechanism includes two crushing rollers (6) that are horizontally rotatably connected inside the mixing chamber (8). Each of the ends of the two crushing rollers (6) on the same side is fixedly fitted with a gear (4). The two gears (4) mesh externally. One of the crushing rollers (6) is driven to rotate by a motor (7) installed on the outer wall of the mixing chamber (8).
3. The waste-based solidified soil preparation device according to claim 2, characterized in that, The mixing bin (8) is equipped with a feeding bin (5) on top.
4. The waste-based solidified soil preparation device according to claim 1, characterized in that, A fixed baffle (15) is fixedly connected to one end of the conveying shaft (16) near the discharge port (11). The fixed baffle (15) is fixedly sleeved on the conveying shaft (16). The spiral auger (17) is slidably sleeved on the conveying shaft (16). The end of the spiral auger (17) away from the rotating baffle (15) is fixedly connected to the end face of the fixed baffle (15). The rotating baffle (18) is slidably sleeved on the conveying shaft (16) and is keyed to the conveying shaft (16).
5. The waste-based solidified soil preparation device according to claim 1, characterized in that, A motor plate (10) is installed at one end of the mixing cylinder (2) away from the discharge port (11). A drive motor (9) is installed on the motor plate (10), and the drive motor (9) is driven to connect with the conveying shaft (16).
6. The waste-based solidified soil preparation device according to claim 1, characterized in that, The driving mechanism includes a cylinder (12) installed at the end of the mixing cylinder (2), and a rotating plate (23) is coaxially rotatably connected to the inner cavity of the kneading seat (14). The cylinder rod of the cylinder (12) slides through the mixing cylinder (2) and is fixedly connected to the rotating plate (23).
7. The waste-based solidified soil preparation device according to claim 1, characterized in that, Two balls (22) are rotatably embedded around the periphery of the kneading seat (14). The inner wall of the mixing cylinder (2) is provided with a rolling groove (35) for the two balls (22) to engage together. When the balls (22) roll in the rolling groove (35), the kneading seat (14) rotates around the axis of the mixing cylinder (2), and the direction of rotation is opposite to the direction of rotation of the conveying shaft (16).
8. The waste-based solidified soil preparation device according to claim 7, characterized in that, The end face of the kneading part (21) is provided with multiple receiving cavities (27). Each inner wall of the receiving cavity (27) is provided with a recessed sliding groove (30). A sliding block (33) is slidably engaged in the sliding groove (30). Two adjacent sliding blocks (33) are fixedly connected to a rotating shaft. The rotating shaft is rotatably fitted with a kneading roller (28). The kneading roller (28) passes freely through the receiving cavity (27). The kneading seat (14) is provided with a kneading mechanism. The kneading mechanism is used to drive the kneading roller (28) to reciprocate along the axial direction of the kneading seat (14) when the rotating plate (23) rotates.
9. The waste-based solidified soil preparation device according to claim 8, characterized in that, The kneading mechanism includes a connecting rod (29) fixed to a sliding block (33). The connecting rod (29) slides through the kneading seat (14). Two adjacent connecting rods (29) are fixed to a floating plate (31) at the ends away from the sliding block (33). The floating plate (31) is fixed to a mounting rod (25). The mounting rod (25) is rotatably connected to a roller (34) at the end facing the rotating plate (23). The end face of the rotating plate (23) is fixed to a plurality of arc-shaped protrusions (26). The roller (34) is used in conjunction with the arc-shaped protrusions (26). A spring (32) is installed between the floating plate (31) and the inner wall of the kneading seat (14). The two ends of the spring (32) in the direction of elasticity are fixed to the floating plate (31) and the kneading seat (14) respectively.
10. A process for preparing solidified soil based on waste materials, applied to the preparation apparatus according to any one of claims 1 to 9, characterized in that, include: Plain soil and solidifying agent are put into the mixing chamber (8), and the plain soil is crushed by the crushing mechanism. After crushing, the plain soil and solidifying agent will fall from the transition chamber (3) into the mixing cylinder (2). The driving mechanism drives the kneading seat (14) to move toward the rotating baffle (18), so that the kneading seat (14) kneads the soil and curing agent that fall between the kneading seat (14) and the rotating baffle (18), thereby allowing the soil and curing agent to enter the kneading groove (19), and through kneading, the curing agent penetrates into the soil. The kneaded soil and curing agent will enter the area between the rotating baffle (18) and the discharge port (11) from the feed inlet (20). The conveying shaft (16) rotates, causing the spiral auger (17) to rotate, and conveying the soil and curing agent that enter between the rotating baffle (18) and the discharge port (11). The soil and curing agent continue to be mixed during the conveying process, and then fall out from the discharge port (11).