Soil screening equipment for soil remediation capable of avoiding soil accumulation

Abstract

The present invention relates to the technical field of soil remediation, and in particular to a soil screening device for soil remediation that can avoid soil accumulation. Its technical solution includes: a screening device main body and a feed hopper provided on the top of the screening device main body, a preliminary screening mechanism is provided in the screening device main body, the preliminary screening mechanism includes a crushing roller assembly and a beating roller rotatably installed in the screening device main body, the crushing roller assembly is located above the beating roller, the preliminary screening mechanism also includes a driving assembly fixedly installed outside the screening device main body for driving the crushing roller assembly and the beating roller to rotate, and the screening device main body is also provided with an anti-accumulation mechanism located below the preliminary screening mechanism. The present invention can avoid the conditions for soil accumulation and agglomeration through this multi-step refinement process, thereby ensuring the improvement of the effect of soil remediation.

Description

Technical Field

[0001] The invention relates to the technical field of soil remediation, and in particular to a soil screening device for soil remediation which can avoid soil accumulation. Background Art

[0002] Soil remediation is a technical measure to restore the normal function of contaminated soil. In the soil remediation industry, there are more than 100 existing soil remediation technologies and more than 10 commonly used technologies, which can be roughly divided into three methods: physical, chemical and biological. Since the 1980s, many countries in the world, especially developed countries, have formulated and implemented contaminated soil treatment and remediation plans, thus forming an emerging soil remediation industry. In soil remediation operations, the soil needs to be screened.

[0003] However, the existing screening operations still have the following problems: 1. When faced with agglomerated hardened soil, the large volume of the soil often causes soil accumulation problems; 2. When the soil is repaired, the degree of soil refinement directly affects the mixing of the soil and the repair agent, and thus the degree of soil refinement directly affects the repair effect. During soil repair, the soil often agglomerates again due to soil accumulation and incomplete crushing. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and to provide a soil screening device for soil remediation which can avoid soil accumulation.

[0005] The technical solution of the present invention is as follows: a soil screening device for soil remediation that can avoid soil accumulation, comprising a screening device main body and a feed hopper provided on the top of the screening device main body, a preliminary screening mechanism being provided in the screening device main body, the preliminary screening mechanism comprising a crushing roller assembly and a beating roller rotatably mounted in the screening device main body, the crushing roller assembly being located above the beating roller, the preliminary screening mechanism also comprising a driving assembly fixedly mounted outside the screening device main body for driving the crushing roller assembly and the beating roller to rotate, the screening device main body is also provided with an anti-accumulation mechanism located below the preliminary screening mechanism, the anti-accumulation mechanism comprising two anti-accumulation assemblies whose one ends are respectively hinged to both sides of the screening device main body, the anti-accumulation mechanism also comprises an electric cylinder fixedly mounted on the bottom of the screening device main body, a mounting frame being fixedly mounted on the pushing end of the electric cylinder, the other ends of the two anti-accumulation assemblies being respectively hinged to the mounting frame, and a filter plate located below the anti-accumulation assembly being fixedly mounted on the mounting frame.

[0006] Preferably, the anti-accumulation component includes an anti-accumulation frame hinged to the screening device body, and the anti-accumulation component also includes an anti-accumulation plate hinged to the mounting frame. Slide grooves are provided on both sides of the anti-accumulation frame, and slide plates are fixedly installed on both sides of the anti-accumulation plate. The slide plates are slidably installed in the slide grooves, and a fine crushing component is provided between the anti-accumulation frame and the anti-accumulation plate.

[0007] Preferably, the fine crushing component includes mounting plates opened on both sides of the anti-stacking frame, the mounting plates are connected to the slide groove, the fine crushing component also includes a plurality of teeth fixedly mounted under the slide plate, two second gears matched with the teeth are rotatably mounted in the mounting plate, and a third crushing roller is fixedly mounted between the second gears on both sides.

[0008] Preferably, the anti-accumulation frame and the anti-accumulation plate are both provided with screening holes, screening holes are provided on both sides of the anti-accumulation frame, an area for the anti-accumulation plate to enter is provided in the middle of the anti-accumulation frame, the anti-accumulation component is located below the row of rollers, and the anti-accumulation component is located below the electric cylinder.

[0009] Preferably, the preliminary screening mechanism also includes a motor fixedly installed in the drive assembly, the crushing roller assembly is fixedly installed with a first drive shaft, the beating roller is fixedly installed with a second drive shaft, the first drive shaft and the second drive shaft are both rotatably installed in the drive assembly, the output end of the motor, the second drive shaft and the first drive shaft are all provided with pulleys, and belts are provided between adjacent pulleys.

[0010] Preferably, the first drive shaft and the second drive shaft both pass through the drive assembly, a mounting plate is fixedly installed in the drive assembly, and the first drive shaft and the second drive shaft are rotatably mounted on the mounting plate.

[0011] Preferably, the crushing roller assembly includes a first crushing roller and a second crushing roller, the first driving shaft is fixedly mounted on the first crushing roller, the second crushing roller is fixedly mounted with a third driving shaft rotatably mounted in the driving assembly, the first driving shaft and the third driving shaft are both fixedly mounted with gears, the two gears are meshed with each other, and a control device is also fixedly mounted on the driving assembly, and the motor and the control device are electrically connected.

[0012] Preferably, an atomizing nozzle is fixedly installed in the main body of the screening device, a water tank is fixedly installed outside the main body of the screening device, a water pipe is connected between the water tank and the atomizing nozzle, and a water pump is provided in the water tank.

[0013] Preferably, a soil outlet is provided at the bottom of the screening device body, an exhaust port is provided at the top of the screening device body, and a water inlet is provided on the water tank.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, by providing a crushing roller assembly and a beating roller in the main body of the screening device, the agglomerated soil can be initially crushed to make it smaller, thereby achieving the effect of initially avoiding accumulation. The crushing roller assembly can crush the soil, and the crushed soil can be struck and broken by the beating roller to break the soil that is still large in volume, thereby ensuring that the soil that falls on the anti-accumulation assembly can be finally refined. Through this multi-step refinement treatment, the conditions for the soil to form accumulation and agglomeration can be avoided, thereby ensuring the effect of improving soil remediation.

[0016] 2. In the present invention, when soil falls onto the anti-accumulation component, the anti-accumulation plate will move upward by starting the mounting frame, so that the finely divided soil is checked through the screening holes, and the refined soil that meets the standards falls down. When the soil does not meet the standards, the soil that does not meet the standards can be lifted up by the rapid rise and fall of the mounting frame, and is beaten and crushed again by the beating rollers, thereby fully ensuring that the soil is refined. After the soil enters the anti-accumulation frame, when the anti-accumulation plate enters the anti-accumulation frame, the fine crushing component can drive the two second crushing rollers to crush the soil again, so that the soil is discharged again. The soil that can smoothly pass through the filter plate is the qualified refined soil.

[0017] 3. In the present invention, when soil falls into the anti-accumulation component, dust will be generated after the large pieces of soil are refined, and the beating of the beating roller will make the dust even bigger. Because water is injected into the water tank and discharged through the atomizing nozzle, the atomized water can have the effect of reducing dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of an embodiment of the present invention is provided;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the internal anti-accumulation component;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of the internal crushing component;

[0021] Figure 4 for Figure 3 Schematic diagram of the structure of the internal crushing component;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the inner drive assembly;

[0023] Figure 6 for Figure 5A schematic diagram of the structure of the inner crushing roller assembly;

[0024] Figure 7 for Figure 1 Schematic diagram of the side structure.

[0025] Figure numerals: 1, screening device body; 2, screening box; 3, preliminary screening mechanism; 4, anti-deposit mechanism; 5, exhaust port; 6, soil outlet; 7, atomizing nozzle; 8, water tank; 9, water pipe; 10, fine crushing assembly; 11, mounting plate; 13, teeth; 14, second gear; 15, third crushing roller; 16, feed hopper; 31, crushing roller assembly; 32, row roller; 33, drive assembly; 34, control device; 35, motor; 3 6. First drive shaft; 37. Second drive shaft; 38. Pulley; 39. Belt; 311. First crushing roller; 312. Second crushing roller; 313. Third drive shaft; 314. Gear; 42. Anti-accumulation assembly; 44. Electric cylinder; 45. Mounting frame; 46. Filter plate; 47. Mounting column; 421. Anti-accumulation frame; 422. Anti-accumulation plate; 423. Screening hole; 424. Placement area; 425. Slide plate; 426. Slide chute. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Embodiment 1

[0027] Refer to the attached Figure 1 , 5 , 6 and 7, a soil screening device for soil remediation that can avoid soil accumulation, comprising a screening device body 1 and a feed hopper 16 provided on the top of the screening device body 1, a preliminary screening mechanism 3 is provided in the screening device body 1, the preliminary screening mechanism 3 comprises a crushing roller assembly 31 and a beating roller 32 rotatably mounted in the screening device body 1, the crushing roller assembly 31 is located above the beating roller 32, the preliminary screening mechanism 3 also comprises a driving assembly 33 fixedly mounted outside the screening device body 1 for driving the crushing roller assembly 31 and the beating roller 32 to rotate, the crushing roller assembly 31 is used to first perform a preliminary and simple extrusion and crushing of the soil, so that large soil blocks are initially reduced in size, and then the crushed soil blocks are beaten again by the beating roller 32 to be crushed and reduced in size again;

[0028] The preliminary screening mechanism 3 also includes a motor 35 fixedly installed in the driving assembly 33, a first driving shaft 36 is fixedly installed in the crushing roller assembly 31, and a second driving shaft 37 is fixedly installed in the beating roller 32. The first driving shaft 36 and the second driving shaft 37 are both rotatably installed in the driving assembly 33. The output end of the motor 35, the second driving shaft 37 and the first driving shaft 36 are all provided with pulleys 38. A belt 39 is provided between adjacent pulleys 38. Two pulleys 38 are provided on the second driving shaft 37. The rotation of the motor 35 drives the second driving shaft 37 to rotate, and the rotation of the second driving shaft 37 drives the first driving shaft 36 to rotate. The first driving shaft 36 and the second driving shaft 37 both penetrate the driving assembly 33. A mounting plate is fixedly installed in the driving assembly 33. The first driving shaft 36 and the second driving shaft 37 are both rotatably installed on the mounting plate. The component 31 includes a first crushing roller 311 and a second crushing roller 312, a first driving shaft 36 is fixedly mounted on the first crushing roller 311, and a third driving shaft 313 rotatably mounted in the driving assembly 33 is fixedly mounted on the second crushing roller 312. The first driving shaft 36 and the third driving shaft 313 are both fixedly mounted with gears 314, and the two gears 314 are meshed with each other. The third driving shaft 313 penetrates the driving assembly 33, and the third driving shaft 313 is rotatably mounted on the mounting plate. The third driving shaft 313 and the first driving shaft 36 are of the same size. The other ends of the first crushing roller 311 and the second crushing roller 312 are both rotatably mounted on the side wall of the screening device body 1. The driving assembly 33 is also fixedly mounted with a control device 34, and the motor 35 is electrically connected to the control device 34. In this embodiment, the motor 35 is also electrically connected to the electric cylinder 44 and the water pump.

[0029] An atomizing nozzle 7 is fixedly installed in the screening device body 1, and a water tank 8 is fixedly installed outside the screening device body 1. A water pipe 9 is connected between the water tank 8 and the atomizing nozzle 7. A water pump is arranged in the water tank 8. When the soil is processed, a large amount of dust will be generated. Through this arrangement, water can be sprayed into the screening device body 1 through the atomizing nozzle 7 to reduce dust. A soil outlet 6 is opened at the bottom of the screening device body 1, an exhaust port 5 is arranged at the top of the screening device body 1, and a water inlet is arranged on the water tank 8.

[0030] The working principle of a soil screening device for soil remediation that can avoid soil accumulation based on the first embodiment is as follows: when in use, the soil is input from the anti-accumulation mechanism 4 into the screening device body 1, the soil will first pass through the crushing roller assembly 31, and the soil will pass between the two second crushing rollers 312, the starting motor 35 drives the second driving shaft 37 to rotate through the pulley 38, the rotation of the second driving shaft 37 will drive the beating roller 32 to rotate, the second driving shaft 37 rotates again through the pulley 38 to drive the first driving shaft 36 to rotate, the first driving shaft 36 rotates and drives the first crushing roller 311 to rotate, through the meshing of the two gears 314, when the first driving shaft 36 rotates, the second crushing roller 312 will also rotate, so that the soil passing between the two second crushing rollers 312 will be crushed, and the crushed soil will be discharged and beaten by the beating roller 32, so that the soil is crushed again, thereby forming a preliminary refinement effect;

[0031] When soil falls into the anti-accumulation component 42, dust will be generated after the large pieces of soil are refined, and the beating of the beating roller 32 will make the dust even bigger. Because water is injected into the water tank 8 and discharged through the atomizing nozzle 7, the atomized water can have the effect of reducing dust. Embodiment 2

[0032] See attached Figure 1 , 2 , 3 and 4, based on the first embodiment, the screening device body 1 is further provided with an anti-accumulation mechanism 4 located below the preliminary screening mechanism 3, the anti-accumulation mechanism 4 includes two anti-accumulation components 42, one end of which is hinged to the two sides of the screening device body 1, respectively, and the anti-accumulation mechanism 4 also includes an electric cylinder 44 fixedly installed at the bottom of the screening device body 1, and a mounting frame 45 is fixedly installed on the pushing end of the electric cylinder 44, and the other ends of the two anti-accumulation components 42 are respectively hinged to the mounting frame 45, the cross-sectional area of ​​the anti-accumulation frame 421 is greater than the cross-sectional area of ​​the anti-accumulation plate 422, and when the mounting frame 45 is pushed, the anti-accumulation plate 422 enters the anti-accumulation frame 421, and the mounting frame 45 is fixedly installed with a filter plate 46 located below the anti-accumulation component 42;

[0033] The anti-accumulation assembly 42 includes an anti-accumulation frame 421 hinged to the screening device body 1, and the anti-accumulation assembly 42 also includes an anti-accumulation plate 422 hinged to the mounting frame 45. Both sides of the anti-accumulation frame 421 are provided with slide grooves 426, and both sides of the anti-accumulation plate 422 are fixedly installed with slide plates 425, and the slide plates 425 are slidably installed in the slide grooves 426. Through this arrangement, the anti-accumulation plate 422 can slide in the anti-accumulation frame 421, so that the anti-accumulation plate 422 enters the anti-accumulation frame 421, and the anti-accumulation frame 4 The upper and lower parts of the anti-pile frame 421 are provided with screening holes 423, and the screening holes 423 can screen the larger soil blocks. In this embodiment, the anti-pile plate 422 can squeeze and crush the soil entering the anti-pile frame 421 again after entering the anti-pile frame 421, so that its volume becomes smaller again. A fine crushing component 10 is provided between the anti-pile frame 421 and the anti-pile plate 422. The fine crushing component 10 includes a mounting plate 11 disposed on both sides of the anti-pile frame 421, and the mounting plate 11 is connected to the slide groove 426. The crushing assembly 10 also includes a plurality of teeth 13 fixedly mounted under the slide plate 425. Two second gears 14 adapted to the teeth 13 are rotatably mounted in the mounting plate 11. A third crushing roller 15 is fixedly mounted between the second gears 14 on both sides. When in use, when the electric cylinder 44 pushes the mounting column 47, the anti-accumulation plate 422 will slide into the anti-accumulation frame 421. At this time, the teeth 13 will mesh with the second gear 14 during movement, and the second gear 14 will rotate, so that the two third crushing rollers 15 can be crushed again. The soil blocks entering the anti-accumulation frame 421 are crushed to make them smaller and there is no longer any problem of accumulation. The anti-accumulation frame 421 and the anti-accumulation plate 422 are both provided with screening holes 423, and screening holes 423 are provided on both sides of the anti-accumulation frame 421. The middle part of the anti-accumulation frame 421 is provided with an area for the anti-accumulation plate 422 to enter. The anti-accumulation component 42 is located below the row rollers 32, and the anti-accumulation component 42 is located below the electric cylinder 44. The diameter of the filter hole on the filter plate 46 is smaller than the diameter of the filter hole 423.

[0034] In this embodiment, when soil falls onto the anti-accumulation component 42, the mounting frame 45 is started to push 47, so that the anti-accumulation plate 422 moves upward. When the mounting column 47 moves upward, the anti-accumulation plate 422 is driven to move. At this time, the initially refined soil passes through the screening hole 423, and the refined soil that meets the standard falls. When the soil does not meet the standard, the soil that does not meet the standard can be lifted up by the rapid rise and fall of the mounting frame 45, and is struck and crushed again by the row roller 32. At this time, a part of the soil will enter the anti-accumulation frame 421, when the soil enters the anti-accumulation frame 421, when the anti-accumulation plate 422 enters the anti-accumulation frame 421, the slide plate 425 will move in the slide groove 426, and the slide plate 425 will move into the mounting plate 11, so that the teeth 13 will mesh with the second gear 14, and then the second gear 14 will rotate, and the two third crushing rollers 15 can be driven by the fine crushing component 10 to crush the soil again, so that the soil can be discharged again, and the soil that can smoothly pass through the filter plate 46 is the qualified fine soil.

[0035] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A soil screening device for soil remediation capable of avoiding soil accumulation, comprising a screening device body (1) and a feed hopper (16) provided on the top of the screening device body (1), characterized in that: A preliminary screening mechanism (3) is provided in the screening device body (1), the preliminary screening mechanism (3) comprising a crushing roller assembly (31) and a beating roller (32) rotatably mounted in the screening device body (1), the crushing roller assembly (31) being located above the beating roller (32), the preliminary screening mechanism (3) further comprising a driving assembly (33) fixedly mounted outside the screening device body (1) for driving the crushing roller assembly (31) and the beating roller (32) to rotate, and the screening device body (1) is further provided with an anti-accumulation mechanism (4) located below the preliminary screening mechanism (3); The anti-deposit mechanism (4) comprises two anti-deposit components (42) whose one ends are respectively hinged to the two sides of the screening device body (1), the anti-deposit mechanism (4) further comprises an electric cylinder (44) fixedly mounted on the bottom of the screening device body (1), a mounting frame (45) fixedly mounted on the pushing end of the electric cylinder (44), the other ends of the two anti-deposit components (42) are respectively hinged to the mounting frame (45), and the mounting frame (45) is fixedly mounted with a filter plate (46) located below the anti-deposit components (42); The anti-deposit assembly (42) comprises an anti-deposit frame (421) hinged to the screening device body (1), and the anti-deposit assembly (42) further comprises an anti-deposit plate (422) hinged to the mounting frame (45), both sides of the anti-deposit frame (421) are provided with slide grooves (426), both sides of the anti-deposit plate (422) are fixedly provided with slide plates (425), and the slide plates (425) are slidably installed in the slide grooves (426), and a fine crushing assembly (10) is provided between the anti-deposit frame (421) and the anti-deposit plate (422); The fine crushing component (10) comprises mounting plates (11) provided on both sides of the anti-stacking frame (421), the mounting plates (11) being in communication with the slide groove (426), the fine crushing component (10) further comprising a plurality of teeth (13) fixedly mounted below the slide plate (425), two second gears (14) adapted to the teeth (13) being rotatably mounted in the mounting plate (11), and a third crushing roller (15) being fixedly mounted between the second gears (14) on both sides; The anti-accumulation frame (421) and the anti-accumulation plate (422) are both provided with screening holes (423), screening holes (423) are provided on both sides of the anti-accumulation frame (421), an area for the anti-accumulation plate (422) to enter is provided in the middle of the anti-accumulation frame (421), the anti-accumulation component (42) is located below the row of beating rollers (32), and the anti-accumulation component (42) is located below the electric cylinder (44).

2. A soil screening device for soil remediation capable of avoiding soil accumulation according to claim 1, characterized in that: The preliminary screening mechanism (3) further comprises a motor (35) fixedly mounted in the driving assembly (33); the crushing roller assembly (31) is fixedly mounted with a first driving shaft (36); the beating roller (32) is fixedly mounted with a second driving shaft (37); the first driving shaft (36) and the second driving shaft (37) are both rotatably mounted in the driving assembly (33); the output end of the motor (35), the second driving shaft (37) and the first driving shaft (36) are all provided with pulleys (38); and belts (39) are provided between adjacent pulleys (38).

3. A soil screening device for soil remediation capable of avoiding soil accumulation according to claim 2, characterized in that: The first drive shaft (36) and the second drive shaft (37) both pass through the drive assembly (33); a mounting plate is fixedly mounted inside the drive assembly (33); and the first drive shaft (36) and the second drive shaft (37) are rotatably mounted on the mounting plate.

4. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 3 is characterized in that: The crushing roller assembly (31) comprises a first crushing roller (311) and a second crushing roller (312); the first driving shaft (36) is fixedly mounted on the first crushing roller (311); the second crushing roller (312) is fixedly mounted with a third driving shaft (313) rotatably mounted in the driving assembly (33); the first driving shaft (36) and the third driving shaft (313) are both fixedly mounted with gears (314); the two gears (314) are meshed with each other; a control device (34) is also fixedly mounted on the driving assembly (33); and a motor (35) is electrically connected to the control device (34).

5. The soil screening equipment for soil remediation capable of avoiding soil accumulation according to claim 4, characterized in that: An atomizing nozzle (7) is fixedly mounted inside the screening device body (1), a water tank (8) is fixedly mounted outside the screening device body (1), a water pipe (9) is connected between the water tank (8) and the atomizing nozzle (7), and a water pump is arranged inside the water tank (8).

6. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 5, characterized in that: A soil outlet (6) is provided at the bottom of the screening device body (1), an exhaust port (5) is provided at the top of the screening device body (1), and a water inlet is provided on the water tank (8).

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