Crushing and screening device for polluted soil

Abstract

The utility model belongs to the technical field of soil treatment, and particularly relates to a crushing and screening device for polluted soil, which is characterized in that a rectangular notch and an inclined notch which are arranged up and down are formed in a mounting barrel, a feeding hole is formed in the top of the mounting barrel, a funnel is arranged at the feeding hole, and a crushing device for crushing caked soil is mounted in the funnel; the filter barrel is taken and placed through the rectangular notch and can ascend and descend relative to the mounting barrel after being placed into the mounting barrel, a wedge-shaped plate is arranged in the mounting barrel below the filter barrel, and soil filtered and screened by the filter barrel falls on the wedge-shaped plate and then is guided out through the inclined notch; the upper part of the stirring piece is rotationally mounted at the top of the mounting barrel; a lifting device for driving the filtering barrel to lift relative to the mounting barrel is arranged on the outer side of the mounting barrel. According to the device, sundries such as gravel and plant rhizomes mixed in soil can be separated, the cleanliness of the crushed soil is improved, the fusion effect of drugs and the soil is improved, and the remediation efficiency of the soil is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil treatment, and specifically relates to a crushing and screening device for contaminated soil. Background Art

[0002] Soil remediation is a technical measure to restore the normal function of contaminated soil. During the remediation process, it is necessary to crush the contaminated soil and then mix an appropriate amount of chemical agents into the soil.

[0003] The Chinese utility model patent with the publication number of CN210816700U, which was published on June 23, 2020, discloses a "contaminated soil remediation device". During the use of this remediation device, the contaminated soil is put into the upper box body through the feed hopper, the vibrating device drives the sieve mesh to vibrate, the soil is sieved by the sieve mesh, the fine-grained soil falls onto the upper surface of the support shield from the sieve mesh, the larger lumpy soil falls along the sieve mesh onto the upper surface of the crushing device, the lumpy soil is crushed by the crushing device, and the crushed material falls into the lower box body from the transfer cavity along with the material sliding from the upper surface of the support shield.

[0004] However, since the above-mentioned remediation device cannot separate sundries such as sand and gravel and plant roots in the soil during the crushing process of the soil, it affects the fusion of the drug and the soil during the soil treatment process, resulting in low soil remediation efficiency and poor effect. Summary of the Utility Model

[0005] Aiming at the problem that in the prior art, sundries such as sand and gravel and plant roots in the soil cannot be separated during the crushing process before soil remediation, which affects the fusion of the drug and the soil, resulting in low soil remediation efficiency and poor effect, the purpose of the utility model is to provide a crushing and screening device for contaminated soil.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] The utility model includes an installation barrel, a crushing device, a filtering device and a lifting device. A rectangular notch and an inclined notch are arranged up and down on the installation barrel. A feeding port is arranged at the top of the installation barrel, and a funnel for discharging materials is arranged at the feeding port. A crushing device for crushing caked soil is installed in the funnel; the filtering device includes a filtering barrel and a stirring member. The filtering barrel is taken and placed through the rectangular notch and can lift relative to the installation barrel after being placed in the installation barrel. A wedge-shaped plate is arranged in the installation barrel below the filtering barrel. The soil filtered and screened by the filtering barrel falls on the wedge-shaped plate and is then led out through the inclined notch; the upper part of the stirring member is rotatably installed at the top of the installation barrel, and the lower part of the stirring member is located in the filtering barrel; a lifting device for driving the filtering barrel to lift relative to the installation barrel is arranged outside the installation barrel.

[0008] Wherein: sliding grooves are mirror-symmetrically arranged on both sides of the axial section of the installation barrel, and both sliding grooves communicate with the rectangular notch; grips are mirror-symmetrically arranged on both sides of the axial section of the filtering barrel. Each grip on each side is located in the corresponding sliding groove on the same side and can move up and down in the sliding groove.

[0009] The crushing device includes at least one crushing roll group. Each crushing roll group includes two crushing rolls. The two crushing rolls are rotatably installed in the funnel and above the feeding port. The roll shaft of any one of the crushing rolls is connected to a power source installed on the funnel, and the two crushing rolls are linked through a first transmission mechanism.

[0010] The stirring member includes a first power source, a stirring shaft, stirring blades and a cleaning member. The first power source is fixed at the top of the installation barrel. The stirring shaft is rotatably installed at the top of the installation barrel. The output end of the first power source is directly connected to the stirring shaft or connected to the stirring shaft through a second transmission mechanism; multiple groups of stirring blades and at least one group of cleaning members for cleaning the filtering barrel are arranged along the axial direction on the stirring shaft. The stirring blades and the cleaning members are both located in the filtering barrel.

[0011] The cleaning member includes an installation blade and a cleaning brush. The installation blade is connected to the stirring shaft, and a cleaning brush is installed on the lower surface of the installation blade. The cleaning brush abuts against the bottom of the filtering barrel.

[0012] A T-shaped groove is arranged along the length direction on the lower surface of the installation blade. The end face of the cleaning brush is in a "T" shape, and the bottom end of the vertical side of the "T" shape is arc-shaped. The cleaning brush is inserted into the T-shaped groove of the installation blade.

[0013] The lifting device includes a second power source, a lead screw and a lifting frame. The second power source is fixed on the installation barrel. The lead screw is rotatably installed on the installation barrel. The output end of the second power source is directly connected to the lead screw or connected to the lead screw through a third transmission mechanism. A lifting frame is threadedly connected to the lead screw, and the lifting frame is connected to the filtering barrel.

[0014] The lifting frame is arc-shaped, and limiting grooves are provided at both ends; grips are mirror-symmetrically provided on both sides of the axial section of the filter barrel, and the two grips on both sides are respectively located in the limiting grooves at both ends of the lifting frame.

[0015] A protective cover is provided at the connection between the first power source and the stirring shaft, and a protective cover is provided at the connection between the second power source and the lead screw.

[0016] A load-bearing shaft is installed in the installation barrel, and the load-bearing shaft is located between the rectangular notch and the inclined notch for supporting the filter barrel.

[0017] The advantages and positive effects of the present utility model are:

[0018] Through the cooperation of the filter barrel and the stirring member, the present utility model can separate sundries such as sand and gravel and plant roots mixed in the soil, improve the cleanliness of the crushed soil, so as to improve the fusion effect of the medicine and the soil and ensure its repair efficiency. Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is an exploded view of the present utility model;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the stirring member of the present utility model;

[0022] Figure 4 is Figure 3 the structural schematic diagram of the cleaning member in

[0023] Figure 5 is a structural schematic diagram of the filter barrel of the present utility model;

[0024] Among them: 1 is the installation barrel, 101 is the rectangular notch, 102 is the inclined notch, 103 is the load-bearing shaft, 104 is the wedge plate, 105 is the top plate, 106 is the funnel, 107 is the feed port, 108 is the chute, 109 is the mounting seat, 2 is the crushing roller, 201 is the straight gear, 3 is the stirring shaft, 301 is the first power source, 302 is the first helical gear, 304 is the stirring blade, 305 is the mounting blade, 306 is the T-shaped groove, 307 is the cleaning brush, 4 is the filter barrel, 401 is the grip, 5 is the lead screw, 501 is the second helical gear, 502 is the lifting frame, 503 is the limiting groove, 504 is the second power source. Detailed Embodiment

[0025] The present utility model will be described in further detail below with reference to the drawings.

[0026] As Figures 1 to 5As shown in the figure, the utility model includes an installation barrel 1, a crushing device, a filtering device and a lifting device. A rectangular notch 101 and an inclined notch 102 are provided on the installation barrel 1 in an up-and-down arrangement. A feeding port 107 is provided at the top of the installation barrel 1, and a funnel 106 for discharging materials is provided at the feeding port 107. A crushing device for crushing caked soil is installed in the funnel 106. The filtering device includes a filtering barrel 4 and a stirring member. The filtering barrel 4 is taken and placed through the rectangular notch 101 and can be lifted relative to the installation barrel 1 after being placed in the installation barrel 1. A wedge-shaped plate 104 is provided in the installation barrel 1 below the filtering barrel 4. The soil filtered and screened by the filtering barrel 4 falls on the wedge-shaped plate 104 and is then led out through the inclined notch 102. The upper part of the stirring member is rotatably installed at the top of the installation barrel 1, and the lower part of the stirring member is located inside the filtering barrel 4. A lifting device for driving the filtering barrel 4 to lift relative to the installation barrel 1 is provided outside the installation barrel 1.

[0027] As Figure 1 , Figure 2 shown in the figure, the installation barrel 1 of this embodiment is a hollow circular barrel with both ends closed. The rectangular notch 101 and the inclined notch 102 are opened on the side plate of the installation barrel 1. The function of the rectangular notch 101 is to facilitate the taking and placing of the filtering barrel 4 into the installation barrel 1. The function of the wedge-shaped plate 104 is to lead out the filtered soil for the next process. The feeding port 107 is opened on the top plate 105 of the installation barrel 1.

[0028] In this embodiment, sliding grooves 108 are mirror-symmetrically opened on both sides of the axial section of the installation barrel 1. The sliding grooves 108 are opened along the height direction of the installation barrel 1, and both sides of the sliding grooves 108 are communicated with the rectangular notch 101. On both sides of the axial section of the filtering barrel 4, grips 401 are mirror-symmetrically provided. Each grip 401 on each side is located in the corresponding sliding groove 108 on the same side and can move up and down in the sliding groove 108. After the filtering barrel 4 is placed into the installation barrel 1 through the rectangular notch 101, the grips 401 on both sides of the filtering barrel 4 are located below the sliding grooves 108 on both sides. When the filtering barrel 4 is driven to rise by the lifting device, the grips 401 on both sides respectively enter the sliding grooves 108 on both sides. The sliding grooves 108 are used to limit the grips 401 on the filtering barrel 4. The function of the grips 401 is to facilitate the lifting device to control the movement of the filtering barrel 4 and also facilitate manual handling.

[0029] As Figure 2As shown in the figure, the crushing device of this embodiment includes at least one crushing roll group. Each crushing roll group includes two crushing rolls 2. The two crushing rolls 2 are rotatably installed in the funnel 106 and are located above the feed inlet 107. The roll shaft of any one of the crushing rolls 2 is connected to a power source installed on the funnel 106, and the two crushing rolls 2 are linked through a first transmission mechanism. In this embodiment, a crushing roll group is arranged in the funnel 106. The first transmission mechanism of this embodiment includes two spur gears 201. One spur gear 201 is installed on the roll shaft of each of the two crushing rolls 2 in the crushing roll group, and the two spur gears 201 are meshed with each other. The function of the crushing roll 2 is to crush the lumpy soil. The crushing roll 2 is driven by a motor. During operation, any one of the crushing rolls 2 is connected to the output end of the motor, and under the meshing transmission of the two spur gears 201, the two crushing rolls 2 can be driven to rotate synchronously and in opposite directions to crush the lumpy soil.

[0030] As Figures 1 to 3 shown in the figure, the stirring member of this embodiment includes a first power source 301, a stirring shaft 3, stirring blades 304 and a cleaning member. The first power source 301 is fixed on the upper surface of the top plate 105 of the installation barrel 1. The stirring shaft 3 is rotatably installed on the top plate 105 of the installation barrel 1. The output end of the first power source 301 is directly connected to the stirring shaft 3 or connected to the stirring shaft 3 through a second transmission mechanism. In this embodiment, the output end of the first power source 301 is connected to the stirring shaft 3 through a second transmission mechanism. The second transmission mechanism is a helical gear transmission mechanism, including two first helical gears 302. One first helical gear 302 is installed on the upper end of the stirring shaft 3 and the output shaft of the first power source 301 respectively, and the two first helical gears 302 are meshed with each other. The first power source 301 of this embodiment can be a motor. A protective cover is provided at the transmission connection between the motor and the stirring shaft 3. The function of the protective cover is to protect the transmission connection and prevent the first helical gear 302 from being directly corroded and damaged.

[0031] Multiple groups of stirring blades 304 and at least one group of cleaning members for cleaning the filter barrel 4 are arranged along the axial direction of the stirring shaft 3. The stirring blades 304 and the cleaning members are both located inside the filter barrel 4. In this embodiment, there are two groups of stirring blades 304, with two stirring blades 304 in each group. Each stirring blade 304 is fixedly connected to the stirring shaft 3, and the two groups of stirring blades 304 are arranged up and down.

[0032] The cleaning member of this embodiment is one group and is arranged at the lower end of the stirring shaft 3, below the two groups of stirring blades 304. The cleaning member includes an installation blade 305 and a cleaning brush 307. A through hole is opened in the middle of the installation blade 305 for connecting to the stirring shaft 3. T-shaped grooves 306 are opened along the length direction on the lower surfaces of both sides of the installation blade 305. The end face of the cleaning brush 307 is in a "T" shape, and the bottom end of the vertical side of the "T" shape is arc-shaped. The cleaning brush 307 is inserted into the T-shaped grooves 306 on both sides of the installation blade 305, and the arc-shaped bottom end of the cleaning brush 307 abuts against the bottom of the filter barrel 4.

[0033] The function of the stirring blades 304 is to stir the soil, gravel, plant roots and other debris accumulated in the filter barrel 4 so that the soil can fall from the filter barrel 4, and the function of the cleaning brush 307 is to continuously clean the bottom of the filter barrel 4 to prevent the filter mesh in the filter barrel 4 from being blocked, thereby affecting soil filtration. During operation, the first power source 301 drives the stirring shaft 3 to rotate through two meshing first bevel gears 302. When the stirring shaft 3 rotates, the multiple groups of stirring blades 304 on the stirring shaft 3 rotate synchronously with the cleaning brush 307 to stir the soil, gravel, plant roots and other debris accumulated in the filter barrel 4. During the stirring process, the cleaning brush 307 abuts against the bottom of the filter barrel 4 to clean the filter mesh at the bottom of the filter barrel 4.

[0034] like Figure 1 , Figure 2 As shown, the lifting device of this embodiment includes a second power source 504, a screw rod 5 and a lifting frame 502. The second power source 504 is fixed to the upper surface of the top plate 105 of the installation barrel 1. Two upper and lower mounting seats 109 are fixed to the outer side of the installation barrel 1. The screw rod 5 is rotatably mounted on the two mounting seats 109. The output end of the second power source 504 is directly connected to the screw rod 5 or connected to the screw rod 5 through a third transmission mechanism. The lifting frame 502 is threadedly connected to the screw rod 5, and the lifting frame 502 abuts against the lower ends of the two handles 401 on the filter barrel 4. The output end of the second power source of this embodiment is connected to the screw rod 5 through a third transmission mechanism. The third transmission mechanism is a helical gear transmission mechanism, including two second helical gears 501. A second helical gear 501 is respectively installed on the upper end of the screw rod 5 and the output shaft of the second power source 504, and the two second helical gears 501 are meshed with each other. The second power source 504 of this embodiment can be a motor, and a protective cover is provided at the transmission connection between the motor and the screw rod 5. The function of the protective cover is to protect the transmission connection to prevent the second bevel gear 501 from being directly damaged by rust. The lifting frame 502 of this embodiment is in an arc shape, and is threadedly connected to the screw rod 5 in the middle. Limiting grooves 503 are provided at both ends, and the handles 401 on both sides are respectively located in the limiting grooves 503 at both ends of the lifting frame 502. The function of the screw rod 5 is to control the rise and fall of the lifting frame 502, and the function of the lifting frame 502 is to support the filter barrel 4. The second power source 504 is connected to the screw rod 5 through two second bevel gears 501, and is used to drive the screw rod 5 to rotate. The lifting frame 502 is driven to rise and fall by the rotation of the screw rod 5. The filter barrel 4 will move up and down along the slide groove 108 under the drive of the lifting frame 502, and the function of the limit groove 503 is to ensure the correct position of the filter barrel 4. During the movement of the filter barrel 4, the handles 401 on both sides are stuck in the corresponding limit grooves 503, so that the handles 401 on both sides can be aligned with the slide groove 108 to prevent the filter barrel 4 from being stuck during the rising process.

[0035] like Figure 5As shown, the filter bucket 4 of this embodiment is a circular bucket with an open upper end and a filter screen at the lower end. The aperture and opening rate of the filter screen can be set as required.

[0036] As Figure 1 , Figure 2 As shown, two load-bearing shafts 103 are installed in the installation bucket 1 of this embodiment (the number of load-bearing shafts 103 can be set to more than two as required). The load-bearing shafts 103 are located between the rectangular notch 101 and the inclined notch 102. The function of the load-bearing shafts 103 is to support the filter bucket 4 after it descends and disengages from the lifting frame 502, improve the stability of the filter bucket 4, and prevent the filter bucket 4 from being overturned.

[0037] The working principle of the present utility model is as follows:

[0038] During use, the dry and caked soil is put in through the funnel 106, then dispersed and crushed by the crushing roller 2, and falls into the filter bucket 4 in the installation bucket 1. Part of the dispersed and crushed soil passes through the filter bucket 4 and falls onto the wedge-shaped plate 104, and then is discharged outside the installation bucket 1 through the inclined notch 102; the other part of the soil, as well as sundries such as sand, gravel, and plant roots, accumulates in the filter bucket 4. The soil, sand, gravel, plant roots, and other sundries accumulated in the filter bucket 4 will be filtered and screened again under the rotation of multiple groups of stirring blades 304 driven by the first power source 301, so that sundries such as sand, gravel, and plant roots remain in the filter bucket 4; when the sundries in the filter bucket 4 remain to a set degree, the screw rod 5 is driven to rotate by the second power source 504, thereby driving the lifting frame 502 to descend, placing the filter bucket 4 filled with sundries on the load-bearing shafts 103, then taking out the filter bucket 4 filled with sundries from the rectangular notch 101, treating the sundries in the filter bucket 4, and then putting it back to the original position through the rectangular notch 101, and lifting it to the designated position again through the lifting frame 502 to continue the soil crushing and screening work.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A crushing and screening device for contaminated soil, characterized in that: The invention comprises a mounting barrel (1), a crushing device, a filtering device and a lifting device, wherein the mounting barrel (1) is provided with a rectangular notch (101) and an oblique notch (102) arranged up and down, a feeding port (107) is provided at the top of the mounting barrel (1), a funnel (106) for discharging materials is provided at the feeding port (107), and a crushing device for crushing agglomerated soil is installed in the funnel (106); the filtering device comprises a filtering barrel (4) and a stirring element, the filtering barrel (4) is taken out by the rectangular notch (101) The filter barrel (4) is placed in the installation barrel (1) and can be raised and lowered relative to the installation barrel (1); a wedge-shaped plate (104) is provided in the installation barrel (1) below the filter barrel (4); soil filtered and screened by the filter barrel (4) falls on the wedge-shaped plate (104) and is then guided out through the oblique notch (102); the upper part of the stirring member is rotatably mounted on the top of the installation barrel (1), and the lower part of the stirring member is located in the filter barrel (4); and a lifting device for driving the filter barrel (4) to be raised and lowered relative to the installation barrel (1) is provided on the outer side of the installation barrel (1).

2. The crushing and screening device for contaminated soil according to claim 1, characterized in that: The mirror images of the two sides of the axial cross section of the installation barrel (1) are provided with slide grooves (108), and the slide grooves (108) on both sides are connected to the rectangular notch (101); the mirror images of the two sides of the axial cross section of the filter barrel (4) are provided with handles (401), and the handles (401) on each side are located in the corresponding slide groove (108) on the same side and can move up and down in the slide groove (108).

3. The crushing and screening device for contaminated soil according to claim 1, characterized in that: The pulverizing device comprises at least one pulverizing roller group, each of the pulverizing roller groups comprises two pulverizing rollers (2), the two pulverizing rollers (2) are rotatably mounted in a hopper (106) and located above the feed port (107), the roller shaft of any one of the pulverizing rollers (2) is connected to a power source mounted on the funnel (106), and the two pulverizing rollers (2) are linked via a first transmission mechanism.

4. The crushing and screening device for contaminated soil according to claim 1, characterized in that: The stirring member comprises a first power source (301), a stirring shaft (3), stirring blades (304) and a cleaning member, wherein the first power source (301) is fixed on the top of the installation barrel (1), the stirring shaft (3) is rotatably installed on the top of the installation barrel (1), and the output end of the first power source (301) is directly connected to the stirring shaft (3) or connected to the stirring shaft (3) through a second transmission mechanism; a plurality of groups of stirring blades (304) and at least one group of cleaning members for cleaning a filter barrel (4) are arranged on the stirring shaft (3) along the axial direction, and the stirring blades (304) and the cleaning member are both located in the filter barrel (4).

5. The crushing and screening device for contaminated soil according to claim 4, characterized in that: The cleaning member comprises a mounting leaf (305) and a cleaning brush (307); the mounting leaf (305) is connected to the stirring shaft (3); a cleaning brush (307) is mounted on the lower surface of the mounting leaf (305); and the cleaning brush (307) abuts against the bottom of the filter barrel (4).

6. The crushing and screening device for contaminated soil according to claim 5, characterized in that: The lower surface of the mounting leaf (305) is provided with a T-shaped groove (306) along the length direction; the end surface of the cleaning brush (307) is T-shaped, and the bottom end of the vertical side of the T-shaped is arc-shaped; the cleaning brush (307) is inserted into the T-shaped groove (306) of the mounting leaf (305).

7. The crushing and screening device for contaminated soil according to claim 4, characterized in that: A protective cover is provided at the connection between the first power source (301) and the stirring shaft (3).

8. The crushing and screening device for contaminated soil according to claim 1, characterized in that: The lifting device includes a second power source (504), a screw rod (5) and a lifting frame (502), wherein the second power source (504) is fixed on the mounting barrel (1), and the screw rod (5) is rotatably mounted on the mounting barrel (1). The output end of the second power source (504) is directly connected to the screw rod (5) or is connected to the screw rod (5) through a third transmission mechanism. The screw rod (5) is threadedly connected to the lifting frame (502), and the lifting frame (502) is connected to the filter barrel (4).

9. The crushing and screening device for contaminated soil according to claim 8, characterized in that: The lifting frame (502) is in an arc shape, and has limiting grooves (503) at both ends; handles (401) are mirror-imaged on both sides of the axial cross section of the filter barrel (4), and the handles (401) on both sides are respectively located in the limiting grooves (503) at both ends of the lifting frame (502).

10. The crushing and screening device for contaminated soil according to claim 8, characterized in that: A protective cover is provided at the connection between the second power source (504) and the screw rod (5).

11. The crushing and screening device for contaminated soil according to claim 1, characterized in that: A load-bearing shaft (103) is installed in the installation barrel (1), and the load-bearing shaft (103) is located between the rectangular notch (101) and the oblique notch (102), and is used to support the filter barrel (4).

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