A heavy metal contaminated soil remediation device

Abstract

The utility model relates to soil remediation equipment technical field, specifically disclose a kind of heavy metal contaminated soil remediation device, the utility model includes: box;Slagging port is opened on the box;Setting is used for the crushing mechanism of soil crushing in the box;Inclined fixed mounting in the box is screened to the soil after crushing and is screened plate.This utility model a kind of heavy metal contaminated soil remediation device, when soil is repaired, by pusher assembly setting, on the one hand, the filter hole on the surface of screening plate can be brushed, reduce the blockage of filter hole;On the other hand, by pusher plate, push and sweep accumulated waste is automatically discharged outward through slagging port, so as to prevent the waste after screening from accumulating on the screening plate, affect the soil after crushing discharging, in addition, in the falling of broken soil, under the action of second guide plate, soil can be dispersed, and under the spray of water mist spray pipe, reagent can be more evenly sprayed on the surface of falling soil.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation equipment technology, specifically to a heavy metal contaminated soil remediation device. Background Technology

[0002] Heavy metal pollutants in soil cannot be decomposed by soil microorganisms and can be transformed into more toxic methyl compounds, posing serious health risks to humans through the food chain. Therefore, remediation equipment for heavy metal-contaminated soil is needed. The remediation process typically involves spraying a remediation solution onto the soil, mixing it with the heavy metal contaminated soil to achieve remediation.

[0003] A patent, CN217393302U, discloses a crushing and mixing device for remediating heavy metal contaminated soil. The device includes a housing with a feed hopper connected to its top. Two connecting shafts are rotatably mounted on the inner walls of the front and rear sides of the feed hopper. Crushing rollers are fixedly mounted on the outer sides of the connecting shafts, and the two crushing rollers mesh with each other. Mounting plates are fixedly mounted on both the left and right sides of the housing, and support plates are fixedly mounted on the top of the mounting plates. This invention features a reasonable structural design. Through the rotation of the turntable and the cooperation of the cylinder and the baffle, it enables vertical reciprocating vibration of the screen, facilitating the screening of the crushed soil and enabling rapid soil remediation with high reliability.

[0004] However, in this existing technology, after the crushed soil is screened by the screen, large pieces of soil and waste remain on the screen surface, which are inconvenient to clean and can easily cause blockage of the filter holes, affecting the subsequent feeding of crushed soil.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a heavy metal contaminated soil remediation device that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted:

[0008] A heavy metal contaminated soil remediation device, characterized in that it comprises: a housing; a slag discharge port opened on the housing; a crushing mechanism disposed on the housing; a screening plate fixedly installed at an incline on the housing; a pushing assembly for discharging waste screened out of the soil; and a water mist spray pipe installed on the housing;

[0009] The material pushing assembly includes: a brush plate; a bracket movably mounted on the brush plate; an electric push rod that drives the bracket to move; a guide groove that guides the movement of the bracket; a hinge rod hinged to the bracket; and a material pushing plate hinged to one end of the hinge rod, with the material pushing plate slidably mounted inside the housing.

[0010] Furthermore, the bracket has waist-shaped grooves at both ends, and a guide pin is movably installed inside the waist-shaped groove. One end of the guide pin is fixedly connected to the end of the brush plate, and the other end of the guide pin is rolled inside the guide groove.

[0011] Furthermore, the upper surface of the pusher plate is inclined.

[0012] Furthermore, a second guide plate is fixedly installed on both sides of the inner wall of the box at an angle, and the two second guide plates are staggered vertically. The water mist spray pipe is located at the lower end of the lower second guide plate, and a vibration motor is fixedly installed on the outer wall of the box.

[0013] Furthermore, a first guide plate is symmetrically fixedly installed on the upper part of the box body, and the first guide plate is inclined.

[0014] Furthermore, the bottom of the box is provided with a discharge port, which is tapered with a larger top and a smaller bottom.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When soil remediation is carried out, the pusher assembly can sweep the filter holes on the surface of the screening plate to reduce the clogging of the filter holes; on the other hand, the pusher plate will automatically discharge the waste accumulated by the pusher through the slag discharge port, thereby preventing the waste after screening from accumulating on the screening plate and affecting the feeding of the crushed soil. In addition, during the fall of the crushed soil, the second guide plate can disperse the soil, and under the spray of the water mist spray pipe, the agent can be sprayed more evenly on the surface of the falling soil to improve the soil remediation effect. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a top view of the present invention;

[0018] Figure 2 This is a schematic front sectional view of the present invention;

[0019] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of a partial main structure of the pusher assembly of this utility model.

[0021] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Box body; 101. Slag discharge port; 102. Material discharge port; 103. First guide plate; 2. Crushing mechanism; 3. Screening plate; 4. Pushing assembly; 401. Brush plate; 4011. Guide pin; 402. Support; 4021. Waist-shaped groove; 403. Electric push rod; 404. Guide groove; 405. Hinge rod; 406. Pushing plate; 5. Water mist spray pipe; 6. Second guide plate; 7. Vibration motor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 5As shown, this utility model discloses a heavy metal contaminated soil remediation device, comprising: a housing 1; a slag discharge port 101 opened on the housing 1; a crushing mechanism 2 installed on the housing 1 for crushing soil (since the crushing mechanism 2 is prior art, it will not be described in detail here; after large pieces of soil are crushed by the crushing mechanism 2 at the upper end of the housing 1, they fall onto the surface of the screening plate 3 for screening); the screening plate 3 is inclined and fixedly installed on the housing 1 to screen the crushed soil; a pushing component 4 for discharging the waste screened out of the soil; and a water mist spray pipe 5 installed on the housing 1 to spray the screened soil with remediation agent; several water mist nozzles are fixedly installed at equal intervals on the water mist spray pipe 5 to spray the crushed and falling soil with remediation agent, and one end of the water mist spray pipe 5 is connected to an external infusion pump to deliver the remediation agent;

[0026] The inner walls of the box 1 are both inclined and fixedly installed with second guide plates 6, and the two second guide plates 6 are staggered vertically. The water mist spray pipe 5 is located at the lower end of the lower second guide plate 6. The outer wall of the box 1 is fixedly installed with a vibration motor 7. When the screening plate 3 screens the broken soil, the vibration motor 7 is started. The vibration motor 7 generates vibration, which speeds up the screening efficiency of the screening plate 3, so that the broken soil falls onto the surface of the second guide plate 6 through the filter holes on the screening plate 3. At the same time, the vibration of the vibration motor 7 speeds up the rolling of the soil on the second guide plate 6. When the soil on the second guide plate 6 rolls down, it can be dispersed by the inclined setting of the second guide plate 6, and under the spray of the water mist spray pipe 5, the agent can be sprayed more evenly on the surface of the falling soil.

[0027] When remediating soil contaminated with heavy metals, the excavated soil block is placed into the box 1 from the top. First, the soil block is crushed by the crushing mechanism 2. The crushed soil is guided by the first guide plate 103 and falls onto the screening plate 3. Then, the vibration motor 7 is started, which generates vibration to accelerate the screening efficiency of the screening plate 3. This allows the crushed soil to fall onto the surface of the second guide plate 6 through the filter holes on the screening plate 3. At the same time, the vibration of the vibration motor 7 accelerates the rolling of the soil on the second guide plate 6. As the soil on the second guide plate 6 rolls down, the tilting setting of the second guide plate 6 disperses it. Under the spraying of the water mist spray pipe 5, the agent can be sprayed more evenly on the surface of the falling soil to improve the soil remediation effect.

[0028] To prevent the waste after screening from accumulating on the screening plate 3 and affecting the feeding of the crushed soil;

[0029] The feeding assembly 4 includes: a brush plate 401; a bracket 402 movably mounted on the brush plate 401; an electric push rod 403 that drives the bracket 402 to move, and the electric push rod 403 is obliquely fixedly mounted on the outer wall of the housing 1. In addition, the oblique angle of the electric push rod 403 is the same as that of the screening plate 3; a guide groove 404 that guides the movement of the bracket 402. Two guide grooves 404 are provided and are symmetrically opened on the inner wall of the housing 1; a hinge rod 405 that is hingedly mounted on the bracket 402; and a feeding plate 406 that is hingedly mounted on one end of the hinge rod 405, and the feeding plate 406 is slidably mounted inside the housing 1.

[0030] When large clumps of soil and waste separated on the screening plate 3 remain on its surface, the electric push rod 403 is activated. The output end of the electric push rod 403 pushes the brush plate 401 on the support 402 to move, causing the brush plate 401 to approach the slag discharge port 101. When the guide pins 4011 at both ends of the brush plate 401 move to the lower part of the guide groove 404, the brush plate 401 descends. The bristles at the bottom of the brush plate 401 contact the surface of the screening plate 3, thus cleaning the filter holes on the surface of the screening plate 3 and reducing clogging. Furthermore... As the brush plate 401 pushes the waste toward the slag discharge port 101, the waste accumulates near the pusher plate 406 through the reciprocating brushing of the brush plate 401. The hinge rod 405 on the bracket 402 pushes the hinged pusher plate 406 upward, pushing the waste on the upper inclined surface of the pusher plate 406 upward. When the brush plate 401 moves into place, the waste on the inclined surface of the pusher plate 406 is automatically discharged outward through the slag discharge port 101, thereby preventing the waste after screening from accumulating on the screening plate 3 and affecting the discharge of the crushed soil.

[0031] It should be added that the bracket 402 has waist-shaped grooves 4021 at both ends. Guide pins 4011 are movably installed inside the waist-shaped grooves 4021. One end of the guide pin 4011 is fixedly connected to the end of the brush plate 401, and the other end of the guide pin 4011 is rolled inside the guide groove 404. With the setting of the waist-shaped grooves 4021, when the output end of the electric push rod 403 retracts and drives the brush plate 401 movably installed on the bracket 402, when the brush plate 401 is about to move and reset, the guide pins 4011 at both ends of the brush plate 401 move to the higher part of the guide groove 404, so that the brush plate 401 rises. The bottom of the brush plate 401 does not contact the screening plate 3, so that when the brush plate 401 resets, it does not sweep the surface of the screening plate 3, preventing waste from accumulating at the higher part of the screening plate 3. Under the action of the vibration motor 7, the screening plate 3 vibrates, causing the waste on the screening plate 3 to slide to the lower part.

[0032] It should be noted that the top of the pusher plate 406 is set as an inclined surface, and the lower part of the inclined surface of the top of the pusher plate 406 is located on one side of the slag discharge port 101. When the brush plate 401 approaches the slag discharge port 101, the hinge rod 405 hinged on the bracket 402 pushes the pusher plate 406 upward, pushing the waste falling on the inclined surface of the top of the pusher plate 406 upward, so that the waste is discharged to the outside of the box 1 through the slag discharge port 101, preventing the waste after screening from accumulating on the screening plate 3 and affecting the discharge of the crushed soil.

[0033] To prevent the broken soil from falling onto the edge of the screening plate 3 and affecting the cleaning of waste, a first guide plate 103 is symmetrically fixedly installed at the upper end of the box 1, and the first guide plate 103 is inclined. After the screening plate 3 breaks the soil, the broken soil is guided by the first guide plate 103 and falls into the middle of the screening plate 3, which facilitates the brush plate 401 to sweep and push the screened waste.

[0034] In order to improve the efficiency of soil discharge after remediation, a discharge port 102 is provided at the bottom of the box 1, and the discharge port 102 is a cone shape with a larger top and a smaller bottom, so that the soil after remediation can be discharged from the bottom of the box 1.

[0035] Working principle: When the power is turned on, the excavated whole piece of soil is put into the box 1 from the top. First, the whole piece of soil is crushed by the crushing mechanism 2. The crushed soil falls onto the screening plate 3 after being guided by the first guide plate 103. Then, the vibration motor 7 is started, and the vibration motor 7 generates vibration to speed up the screening efficiency of the screening plate 3. The crushed soil falls onto the surface of the second guide plate 6 through the filter holes on the screening plate 3. At the same time, the vibration of the vibration motor 7 speeds up the rolling of the soil on the second guide plate 6. When the soil on the second guide plate 6 rolls down, it can be dispersed by the tilt setting of the second guide plate 6. Under the spray of the water mist spray pipe 5, the agent can be sprayed more evenly on the surface of the falling soil.

[0036] Then, by activating the electric push rod 403, the output end of the electric push rod 403 pushes the brush plate 401 on the bracket 402 to move, so that the brush plate 401 moves closer to the position of the slag discharge port 101. When the guide pins 4011 at both ends of the brush plate 401 move to the low position of the guide groove 404, the brush plate 401 descends, and the bristles at the bottom of the brush plate 401 contact the surface of the screening plate 3. On the one hand, it can sweep the filter holes on the surface of the screening plate 3 and reduce the clogging of the filter holes; on the other hand, as the brush plate 401 pushes the waste to the position of the slag discharge port 101, the waste accumulates closer to the position of the push plate 406 through the reciprocating sweeping of the brush plate 401. The hinge rod 405 on the bracket 402 pushes the hinged push plate 406 to rise, pushing the waste on the upper inclined surface of the push plate 406 upward. When the brush plate 401 moves into place, the waste on the inclined surface of the push plate 406 is automatically discharged outward through the slag discharge port 101.

[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A device for remediating heavy metal contaminated soil, characterized in that, include: Box body; slag discharge port opened on the box body; crushing mechanism installed on the box body; A screening plate that is tilted and fixedly installed on the box body; A pusher assembly used to discharge waste screened out of the soil; With the water mist spray pipe installed on the box body; The material pushing assembly includes: a brush plate; a bracket movably mounted on the brush plate; an electric push rod that drives the bracket to move; a guide groove that guides the movement of the bracket; a hinge rod hinged to the bracket; and a material pushing plate hinged to one end of the hinge rod, with the material pushing plate slidably mounted inside the housing.

2. The heavy metal contaminated soil remediation device as described in claim 1, characterized in that, The bracket has waist-shaped grooves at both ends, and a guide pin is movably installed inside the waist-shaped groove. One end of the guide pin is fixedly connected to the end of the brush plate, and the other end of the guide pin is rolled inside the guide groove.

3. The heavy metal contaminated soil remediation device as described in claim 1, characterized in that, The upper surface of the pusher plate is inclined.

4. The heavy metal contaminated soil remediation device as described in claim 1, characterized in that, The inner walls of the box are both inclined and fixedly installed with second guide plates, and the two second guide plates are staggered. The water mist spray pipe is located at the lower end of the lower second guide plate, and a vibration motor is fixedly installed on the outer wall of the box.

5. The heavy metal contaminated soil remediation device as described in claim 1, characterized in that, The upper part of the box is symmetrically fixedly installed with a first guide plate, and the first guide plate is inclined.

6. The heavy metal contaminated soil remediation device as described in claim 1, characterized in that, The bottom of the box has a discharge port, which is tapered with a larger top and a smaller bottom.

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