Soil screening equipment capable of avoiding soil accumulation for soil remediation

Abstract

The invention relates to the technical field of soil screening equipment, in particular to soil remediation soil screening equipment capable of avoiding soil accumulation, which comprises a support frame provided with moving wheels, and further comprises a coarse screening mechanism and a fine screening mechanism, the fine screening mechanism is used for finely grinding the soil particles output by the coarse screening mechanism; and the agent mixing mechanism is used for receiving the soil particles output by the fine screening mechanism and adding agents to the soil particles. Soil of a land is conveyed to the input end of the coarse screening mechanism through an existing conveying device, then the coarse screening mechanism crushes the soil into particles with the uniform size, then the soil particles are ground into fine soil particles again through a grinding plate, then the soil particles are output to the agent mixing mechanism, and the agent mixing mechanism is used for mixing the soil particles with the agent. Then, under the overall control of the controller, the electromagnetic valve releases the agent with the dosage matched with that of the electromagnetic valve according to the corresponding weight, and the agent is mixed with the soil particles.

Description

Technical Field

[0001] This invention relates to a soil screening device for soil remediation, and more particularly to a soil screening device for soil remediation that can avoid soil accumulation, belonging to the technical field of soil screening equipment. Background Technology

[0002] Soil screening equipment for soil remediation is a specialized device used in the soil remediation process. It can screen soil to remove impurities and pollutants, thereby improving soil quality and fertility. This equipment is highly efficient in land remediation. To prevent soil accumulation, after the soil is ground into fine particles, relevant remediation agents are added to these particles to improve the soil's physicochemical properties. For example, remediation agents can adjust the soil's pH and improve its structure, thus preventing subsequent soil accumulation and clumping.

[0003] However, current technology does not perform a high degree of fine sieving of soil particles. It only uses sieves to further subdivide the soil particles, resulting in uneven particle size. Consequently, when the soil particles are mixed with the remediation agent, the degree of mixing between the soil particles and the remediation agent is low, affecting the soil remediation operation. This can lead to the treated soil accumulating and clumping again. Secondly, when mixing the agent, it is simply mixed with the soil particles and then applied to the land. The dosage of the agent and its proportion to the soil volume are not strictly followed, which can also cause the treated soil to accumulate and clump.

[0004] Therefore, there is an urgent need to improve soil screening equipment for soil remediation that can avoid soil accumulation in order to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a soil screening device for soil remediation that can prevent soil accumulation. In use, soil is transported to the input of a coarse screening mechanism using existing conveying equipment. The coarse screening mechanism then breaks the soil into uniformly sized particles. These particles are still relatively large. Next, a grinding plate grinds these large, uniformly sized soil particles from the coarse screening mechanism into finer particles. These finer particles are then output to a chemical mixing mechanism. A pressure sensor detects the weight of the soil particles, and under the overall control of a controller, a solenoid valve releases a corresponding dosage of chemical agent based on the weight, mixing it with the soil particles. After mixing in the chemical mixing mechanism, the mixture is finally discharged. This process is repeated to complete the soil screening and chemical addition, thus preventing insufficient mixing of the soil with the chemical agent due to inadequate screening, which could lead to soil re-accumulation.

[0006] To achieve the above objectives, the main technical solution adopted by the present invention includes: a soil screening device for soil remediation that avoids soil accumulation, comprising a support frame equipped with moving wheels, and further comprising: a coarse screening mechanism connected to the support frame, the coarse screening mechanism being used to break larger soil particles into smaller particles; a fine screening mechanism disposed below the primary screening mechanism, the input end of the fine screening mechanism being connected to the output end of the coarse screening mechanism, the fine screening mechanism being used to finely grind the soil particles output by the coarse screening mechanism; and a reagent mixing mechanism, the reagent mixing mechanism receiving the soil particles output by the fine screening mechanism and adding reagents to them, the reagent mixing mechanism being equipped with a pressure sensor, the pressure sensor being used to sense the weight of the soil particles and generate a weight electrical signal, the reagent mixing mechanism releasing a corresponding dose of reagent according to the weight electrical signal.

[0007] Preferably, the coarse screening mechanism includes an outer shell connected to a support frame, a screen cylinder rotatably connected inside the outer shell, and a crushing component rotatably connected inside the screen cylinder.

[0008] Preferably, the outer casing is equipped with a motor, the output end of which is connected to the crushing component. One end of the screen cylinder is connected to a gear ring, and the support frame is connected to a motor, the output end of which is connected to a gear that meshes with the gear ring.

[0009] Preferably, the crushing component consists of several crushing blades and a rotating shaft rotatably connected to the screen cylinder. The several crushing blades are linearly and equidistantly arranged along the central axis of the rotating shaft, and the output end of the motor is connected to one end of the rotating shaft.

[0010] Preferably, there are several fine screening mechanisms, and each fine screening mechanism includes a second outer shell, a cylindrical screen connected inside the second outer shell, and two grinding plates rotatably connected inside the second outer shell. The two grinding plates are vertically arranged, and a receiving pipe is connected to the upper grinding plate. One end of the receiving pipe is connected to the output end of the first outer shell, and the other end of the receiving pipe extends to the position between the two grinding plates. The receiving pipe is used to receive soil particles from the output end of the coarse screening mechanism. A grinding cavity is formed between the two grinding plates, and the screen is sleeved on the outside of the two grinding cavities.

[0011] Preferably, each of the two grinding plates is connected to a pulley 1, which is rotatably connected to a drive shaft on the outer wall of the outer shell 2. Two pulleys 2 are connected to the drive shaft, and a transmission belt 1 is sleeved between the pulley 2 and the pulley 1. A motor 3 is provided on the support frame, and the output end of the motor 3 is connected to one end of the drive shaft.

[0012] Preferably, a storage bin is provided at the output end of several fine screening mechanisms. A conveying assembly is provided between the output end of the storage bin and the drug mixing mechanism. The conveying assembly includes a conveying pipe connected to the support frame and a spiral blade rotatably connected inside the conveying pipe. One end of the conveying pipe is connected to a drive motor, and the output end of the drive motor is connected to the spiral blade.

[0013] Preferably, it further includes a bracket connected to the support frame. The drug mixing mechanism includes a support slide fixedly connected to the bracket, a weighing chamber slidably connected to the support slide, and a drug chamber connected to the support slide. The output end of the drug chamber is connected to an output pipe, and the output pipe is equipped with a solenoid valve. A support rod is fixedly connected to the outer wall of the weighing chamber. The pressure sensor is connected to the support slide. One end of the support rod extends to the output end of the pressure sensor. Both the output end and the input end of the weighing chamber are equipped with valve assemblies.

[0014] Preferably, the valve assembly includes a feed pipe and a rotating plate rotatably connected inside the feed pipe. A servo motor is provided on the outer wall of the feed pipe, and the output end of the servo motor is connected to the rotating plate. A second bracket is connected to the support slide, and a third and a fourth pulley are rotatably connected to the second bracket. A second transmission belt is fitted on the third and fourth pulleys. A reduction motor is provided on the fourth pulley, which drives the fourth pulley to rotate. A plurality of stirring rods are connected to the third pulley, and the stirring rods extend into the interior of the weighing chamber.

[0015] Preferably, the device also includes a controller, wherein the pressure sensor and the solenoid valve are electrically connected to the controller. The controller receives an electrical signal from the pressure sensor that senses the weight of the symmetrical weighing chamber, and then the controller outputs a control signal to control the operation of the solenoid valve.

[0016] This invention has at least the following beneficial effects: In use, soil is transported to the input of a coarse screening mechanism using existing conveying equipment. The coarse screening mechanism breaks the soil into uniformly sized particles, which are still relatively large. A grinding plate then grinds these large, uniformly sized particles into finer particles. These finer particles are then sent to a chemical mixing mechanism. A pressure sensor detects the weight of the soil particles, and under the overall control of a controller, a solenoid valve releases a corresponding dosage of chemical based on the weight, mixing it with the soil particles. After mixing in the chemical mixing mechanism, the mixture is finally discharged. This process is repeated to complete the soil screening and chemical addition, preventing insufficient mixing due to inadequate screening and the resulting soil clumping. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 Schematic diagram of the three-dimensional structure provided by the present invention Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure provided by the present invention Figure 2 ; Figure 3 This is a schematic diagram of the cross-sectional structure provided by the present invention; Figure 4 This is a schematic diagram of the coarse screening mechanism provided by the present invention; Figure 5 Provided by the present invention Figure 4 Schematic diagram of equiaxed side cross-section structure; Figure 6 This is a schematic diagram of the fine screening mechanism provided by the present invention; Figure 7 Provided by the present invention Figure 6 Schematic diagram of equiaxed side cross-section structure; Figure 8 Provided by the present invention Figure 6 Cross-sectional structural diagram; Figure 9 A schematic diagram of the pharmaceutical mixing mechanism provided by the present invention; Figure 10 Provided by the present invention Figure 9 Cross-sectional structural diagram; Figure 11 Provided by the present invention Figure 1 Schematic diagram of the isometric cross-section of the middle section.

[0018] In the diagram: 1. Support frame; 2. Casters; 3. Pressure sensor; 4. Coarse screening mechanism; 5. Fine screening mechanism; 6. Reagent mixing mechanism; 7. Outer shell 1; 8. Screen cylinder; 9. Crushing blade; 10. Rotating shaft; 11. Motor 1; 12. Gear ring; 13. Gear; 14. Motor 2; 15. Outer shell 2; 16. Screen component; 17. Grinding plate; 18. Feeding pipe; 19. Grinding chamber; 20. Pulley 1; 21. Drive shaft; 22. Pulley 2; 23. Motor 3; 24. Transmission belt one; 25. Storage bin; 26. Spiral blade; 27. Conveying pipe fitting; 28. Drive motor; 29. ​​Support bracket one; 30. Support slide; 31. Weighing bin; 32. Chemical bin; 33. Output pipe fitting; 34. Solenoid valve; 35. Support rod; 36. Feed pipe; 37. Rotating plate; 38. Servo motor; 39. Support bracket two; 40. Pulley three; 41. Pulley four; 42. Gear motor; 420. Transmission belt two; 43. Stirring rod; 44. Controller. Detailed Implementation

[0019] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] like Figure 1 - Figure 11 As shown, the soil screening equipment for soil remediation that avoids soil accumulation provided in this embodiment includes a support frame 1 equipped with casters 2, and further includes: a coarse screening mechanism 4 connected to the support frame 1, which is used to break larger soil particles into smaller particles; a fine screening mechanism 5 located below the primary screening mechanism, the input end of the fine screening mechanism 5 being connected to the output end of the coarse screening mechanism 4, which is used to finely grind the soil particles output by the coarse screening mechanism 4; and a reagent mixing mechanism 6, which receives the soil particles output by the fine screening mechanism 5 and adds reagents to them. The reagent mixing mechanism 6 is equipped with a pressure sensor 3, which is used to sense the weight of the soil particles and generate a weight electrical signal. The reagent mixing mechanism 6 releases the corresponding reagent dosage according to the weight electrical signal.

[0021] In operation, the soil is transported to the input of the coarse screening mechanism 4 using existing conveying equipment. The coarse screening mechanism 4 then breaks the soil into uniformly sized particles. These particles are still relatively large. Next, the fine screening mechanism 5 grinds the uniformly sized soil particles from the coarse screening mechanism 4 into smaller particles. These smaller particles are then sent to the chemical mixing mechanism 6. Under the weight of the pressure sensor 3, the soil particles are weighed, and the chemical mixing mechanism 6 releases a corresponding dosage of chemical based on the weight, mixing it with the soil particles. After mixing in the chemical mixing mechanism 6, the particles are finally discharged. This process is repeated to complete the soil screening and chemical addition, preventing insufficient mixing of the soil with the chemical due to inadequate screening, thus avoiding the soil from clumping together again.

[0022] The coarse screening mechanism 4 includes an outer shell 7 connected to the support frame 1, a screen cylinder 8 rotatably connected inside the outer shell 7, and a crushing component rotatably connected inside the screen cylinder 8.

[0023] The outer casing 7 is equipped with a motor 11, the output end of which is connected to the crushing parts. One end of the screen cylinder 8 is connected to a gear ring 12. The support frame 1 is connected to a motor 2 14, the output end of which is connected to a gear 13, which meshes with the gear ring 12.

[0024] The crushing component consists of several crushing blades 9 and a rotating shaft 10 rotatably connected to the screen cylinder 8. The crushing blades 9 are linearly and equidistantly arranged along the central axis of the rotating shaft 10, and the output end of the motor 11 is connected to one end of the rotating shaft 10.

[0025] During use, after the soil is fed into the screen cylinder 8, the soil particles that meet the size requirements will be discharged through the screen holes on the screen cylinder 8 and discharged with the output end of the outer casing 7. Soil particles that do not meet the size requirements of the screen holes of the screen cylinder 8 will be crushed by the crushing components to break them into particles that meet the size requirements of the screen holes of the screen cylinder 8.

[0026] Furthermore, there are several fine screening mechanisms 5, and each fine screening mechanism 5 includes a second outer shell 15, a cylindrical screen 16 connected inside the second outer shell 15, and two grinding plates 17 rotatably connected inside the second outer shell 15. The two grinding plates 17 are arranged vertically, and a receiving pipe 18 is connected to the upper grinding plate 17. One end of the receiving pipe 18 is connected to the output end of the first outer shell 7, and the other end of the receiving pipe 18 extends to the position between the two grinding plates 17. The receiving pipe 18 is used to receive soil particles from the output end of the coarse screening mechanism 4. A grinding cavity 19 is formed between the two grinding plates 17. The screen 16 is sleeved on the outside of the two grinding cavities 19. The soil particles flowing out of the first outer shell 7 will enter the interior of the grinding cavity 19 along the receiving pipe 18. As the grinding plates 17 rotate, the soil particles located inside the grinding cavity 19 will be ground and refined.

[0027] Each of the two grinding plates 17 is connected to a pulley 20, which is rotatably connected to a drive shaft 21 on the outer wall of the outer casing 15. Two pulleys 22 are connected to the drive shaft 21, and a transmission belt 24 is sleeved between the pulleys 22 and the pulley 20. A motor 23 is provided on the support frame 1, and the output end of the motor 23 is connected to one end of the drive shaft 21. When the two grinding plates 17 rotate, centrifugal force is generated. The soil particles in the grinding chamber 19 are ground into fine particles and then move towards the outer screen 16 with the centrifugal force of the grinding plates 17. The screen 16 filters out soil particles that do not meet the size requirements, and the soil particles that do not meet the size requirements will continue to be ground and refined by the two grinding plates 17.

[0028] Furthermore, a storage bin 25 is provided at the output end of several fine screening mechanisms 5. A conveying assembly is provided between the output end of the storage bin 25 and the reagent mixing mechanism 6. The conveying assembly includes a conveying pipe 27 connected to the support frame 1 and a spiral blade 26 rotatably connected inside the conveying pipe 27. One end of the conveying pipe 27 is connected to a drive motor 28. The output end of the drive motor 28 is connected to the spiral blade 26. The drive motor 28 drives the spiral blade 26 to rotate, thereby driving the soil particles inside the storage bin 25 to be conveyed to the reagent mixing mechanism 6, so that the reagent mixing mechanism 6 can control the amount of soil particles conveyed.

[0029] Furthermore, it also includes a bracket 29 connected to the support frame 1. The drug mixing mechanism 6 includes a support slide 30 fixedly connected to the bracket 29, a weighing chamber 31 slidably connected to the support slide 30, and a drug chamber 32 connected to the support slide 30. The output end of the drug chamber 32 is connected to an output pipe 33, and a solenoid valve 34 is provided on the output pipe 33. A support rod 35 is fixedly connected to the outer wall of the weighing chamber 31. A pressure sensor 3 is connected to the support slide 30. One end of the support rod 35 extends to the output end of the pressure sensor 3. Valve assemblies are provided at both the output end and the input end of the weighing chamber 31.

[0030] The valve assembly includes a feed pipe 36 and a rotating plate 37 rotatably connected inside the feed pipe 36. A servo motor 38 is provided on the outer wall of the feed pipe 36. The output end of the servo motor 38 is connected to the rotating plate 37. By controlling the servo motor 38, the rotation of the rotating plate 37 can be controlled. As the rotating plate 37 rotates to different positions, the feed pipe 36 will be in a connected or disconnected state accordingly.

[0031] Furthermore, a second bracket 39 is connected to the support slide 30. A third pulley 40 and a fourth pulley 41 are rotatably connected to the second bracket 39. A second transmission belt 420 is fitted onto the third pulley 40 and the fourth pulley 41. A reduction motor 42 is installed on the fourth pulley 41. The reduction motor 42 drives the fourth pulley 41 to rotate. Several stirring rods 43 are connected to the third pulley 40. The stirring rods 43 extend into the weighing chamber 31. Under the action of the stirring rods 43, the soil particles inside the weighing chamber 31 are stirred evenly after contacting the agent, so that the soil particles and the agent are fully mixed.

[0032] Finally, the controller 44, pressure sensor 3, and solenoid valve 34 are all electrically connected to the controller 44. The controller 44 receives the electrical signal from the pressure sensor 3 that senses the weight of the weighing chamber 31. Then, the controller 44 outputs a control signal, which controls the operation of the solenoid valve 34. Before use, the controller 44 can set corresponding thresholds for the weight and the opening time of the solenoid valve 34 to adjust the mixing ratio between soil particles and pesticide.

[0033] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "inclusion" used throughout the specification and claims is an open-ended term and should be interpreted as including but not limited to. "Generally speaking" refers to the ability of those skilled in the art to solve the technical problem and achieve the basic technical effect within an acceptable margin of error.

[0034] It should be noted that the terms "include," "contain," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitations, the inclusion of a defined element by a statement does not exclude the presence of other identical elements in the product or system that includes that element.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A soil screening device for soil remediation that avoids soil accumulation, comprising a support frame (1) equipped with casters (2), characterized in that: Also includes: A coarse screening mechanism (4) connected to a support frame (1) is used to break larger soil particles into smaller particles. A fine screening mechanism (5) is set below the primary screening mechanism. The input end of the fine screening mechanism (5) is connected to the output end of the coarse screening mechanism (4). The fine screening mechanism (5) is used to finely grind the soil particles output by the coarse screening mechanism (4). The agent mixing mechanism (6) receives the soil particles output by the fine screening mechanism (5) and adds agents to them. The agent mixing mechanism (6) is equipped with a pressure sensor (3). The pressure sensor (3) is used to sense the weight of the soil particles and generate a weight electrical signal. The agent mixing mechanism (6) releases the corresponding agent dosage according to the weight electrical signal.

2. The soil screening equipment for soil remediation that avoids soil accumulation according to claim 1, characterized in that: The coarse screening mechanism (4) includes an outer shell (7) connected to a support frame (1), a screen cylinder (8) rotatably connected inside the outer shell (7), and a crushing component rotatably connected inside the screen cylinder (8).

3. The soil screening equipment for soil remediation that avoids soil accumulation according to claim 2, characterized in that: The outer casing (7) is equipped with a motor (11), the output end of which is connected to the crushing component. One end of the screen cylinder (8) is connected to a gear ring (12), and the support frame (1) is connected to a motor (14). The output end of the motor (14) is connected to a gear (13), which meshes with the gear ring (12).

4. A soil screening device for soil remediation that avoids soil accumulation, as described in claim 3, characterized in that: The crushing component consists of several crushing blades (9) and a rotating shaft (10) rotatably connected to the screen cylinder (8). The several crushing blades (9) are linearly and equidistantly arranged along the central axis of the rotating shaft (10). The output end of the motor (11) is connected to one end of the rotating shaft (10).

5. A soil screening device for soil remediation that avoids soil accumulation according to claim 2, characterized in that: The fine screening mechanism (5) consists of several parts, and each fine screening mechanism (5) includes a second outer shell (15), a cylindrical screen (16) connected inside the second outer shell (15), and two grinding plates (17) rotatably connected inside the second outer shell (15). The two grinding plates (17) are vertically arranged, and a receiving pipe (18) is connected to the upper grinding plate (17). One end of the receiving pipe (18) is connected to the output end of the first outer shell (7), and the other end of the receiving pipe (18) extends to the position between the two grinding plates (17). The receiving pipe (18) is used to receive soil particles from the output end of the coarse screening mechanism (4). A grinding cavity (19) is formed between the two grinding plates (17), and the screen (16) is sleeved on the outside of the two grinding cavities (19).

6. A soil screening device for soil remediation that avoids soil accumulation, as described in claim 5, characterized in that: Each of the two grinding plates (17) is connected to a pulley (20), and a drive shaft (21) is rotatably connected to the outer wall of the outer shell (15). Two pulleys (22) are connected to the drive shaft (21), and a transmission belt (24) is sleeved between the pulleys (22) and the pulleys (20). A motor (23) is provided on the support frame (1), and the output end of the motor (23) is connected to one end of the drive shaft (21).

7. A soil screening device for soil remediation that avoids soil accumulation according to claim 1, characterized in that: A storage bin (25) is provided at the output end of several fine screening mechanisms (5). A conveying assembly is provided between the output end of the storage bin (25) and the drug mixing mechanism (6). The conveying assembly includes a conveying pipe (27) connected to the support frame (1) and a spiral blade (26) rotatably connected inside the conveying pipe (27). One end of the conveying pipe (27) is connected to a drive motor (28), and the output end of the drive motor (28) is connected to the spiral blade (26).

8. A soil screening device for soil remediation that avoids soil accumulation according to claim 1, characterized in that: It also includes a bracket (29) connected to the support frame (1). The drug mixing mechanism (6) includes a support slide (30) fixedly connected to the bracket (29), a weighing chamber (31) slidably connected to the support slide (30), and a drug chamber (32) connected to the support slide (30). The output end of the drug chamber (32) is connected to an output pipe (33). The output pipe (33) is provided with a solenoid valve (34). A support rod (35) is fixedly connected to the outer wall of the weighing chamber (31). The pressure sensor (3) is connected to the support slide (30). One end of the support rod (35) extends to the output end of the pressure sensor (3). The output end and the input end of the weighing chamber (31) are both provided with valve assemblies.

9. A soil screening device for soil remediation that avoids soil accumulation, as described in claim 8, characterized in that: The valve assembly includes a feed pipe (36) and a rotating plate (37) rotatably connected inside the feed pipe (36). A servo motor (38) is provided on the outer wall of the feed pipe (36), and the output end of the servo motor (38) is connected to the rotating plate (37). A second bracket (39) is connected to the support slide (30). A third pulley (40) and a fourth pulley (41) are rotatably connected to the second bracket (39). A second transmission belt (420) is sleeved on the third pulley (40) and the fourth pulley (41). A reduction motor (42) is provided on the fourth pulley (41). The reduction motor (42) is used to drive the fourth pulley (41) to rotate. Several stirring rods (43) are connected to the third pulley (40). The stirring rods (43) extend into the interior of the weighing chamber (31).

10. A soil screening device for soil remediation that avoids soil accumulation according to claim 8, characterized in that: It also includes a controller (44), the pressure sensor (3) and the solenoid valve (34) are electrically connected to the controller (44), the controller (44) receives the electrical signal from the pressure sensor (3) sensing the weight of the symmetrical weight chamber (31), and then the controller (44) outputs a control signal, which controls the operation of the solenoid valve (34).

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