A novel high-efficiency soil leaching and remediation drum screen
By designing a high-efficiency soil leaching remediation drum screen, the problems of uneven mixing of soil and chemicals and poor screening effect were solved, thereby improving soil remediation efficiency and optimizing particle classification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUANXINXINTU ECOLOGICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
The existing soil washing equipment has poor mixing uniformity between soil and chemicals, resulting in low remediation efficiency. The soil particle classification effect during the screening process is not ideal, which can easily lead to the loss of fine particles or the residue of large particles.
A novel, high-efficiency soil leaching and remediation drum screen was designed. It adopts a structure of support frame, central shaft, drum and screen cylinder. The agent is sprayed with high pressure nozzle and mixed with soil. The mixture is fully mixed and graded by the guide plate and screen cylinder. The mixture enters the storage hood through the screen holes, while stones and garbage are discharged through the guide hood.
It achieves thorough mixing and effective grading of soil and chemicals, improves remediation efficiency, reduces the loss of fine particles and the residue of large particles, and enhances the soil remediation effect.
Smart Images
Figure CN224272686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of contaminated soil remediation technology, specifically a novel high-efficiency soil leaching and remediation drum screen. Background Technology
[0002] With the rapid development of industrialization and urbanization, soil pollution has become increasingly serious. Soil leaching technology, as an efficient soil remediation method, involves injecting or infiltrating a leaching solution into contaminated soil, causing pollutants to desorb from the surface of soil particles and transfer to the liquid phase. The leaching solution containing pollutants is then treated and reused.
[0003] The existing equipment has the following shortcomings: poor uniformity of soil and chemical mixing, resulting in low remediation efficiency; and unsatisfactory grading of soil particles during the screening process, which easily leads to the loss of fine soil particles or the residue of large impurities. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a novel high-efficiency soil leaching and remediation drum screen, which solves the problems of poor mixing uniformity of soil and reagents, resulting in low remediation efficiency; and unsatisfactory grading effect of soil particles during the sieving process, which easily leads to the loss of fine soil particles or the residue of large impurities.
[0005] This utility model provides the following technical solution: a novel high-efficiency soil leaching and remediation drum screen, including a support frame, with support seats fixedly installed at both ends of the top of the support frame, a central shaft rotatably installed between the two support seats, a water outlet pipe opened inside the central shaft, two rows of high-pressure nozzles symmetrically distributed on the surface of the central shaft, a drum installed outside the central shaft, and a guide plate fixedly installed on the inner wall of the drum;
[0006] A sieve cylinder is fixedly installed at the tail end of the roller, and three rings of support rods are fixedly connected to the surface of the central shaft. The inner walls of the roller and the sieve cylinder are respectively fixedly connected to the support rods.
[0007] Preferred technical solution 1: A fixed base is fixedly installed at one top end of the support frame, a speed reducer is fixedly installed on the upper surface of the fixed base, and a drive motor is installed on the side of the speed reducer. The speed reducer and the drive motor provide power for the rotation of the central shaft.
[0008] Preferred technical solution 2: A flow guide hood is fixedly installed on the lower surface of the support frame, and the flow guide hood corresponds to the tail outlet of the screen cylinder. A storage cover is fixedly installed on the lower surface of the support frame, and the storage cover corresponds to the screen cylinder. A discharge pipe is connected to the lower surface of the storage cover.
[0009] Preferred technical solution 3: A rotary joint is installed at one end of the central shaft, a water pipe is installed on the rotary joint, the water pipe is connected to an external water source, and a valve is installed on the water pipe.
[0010] Preferred technical solution four: The nozzle of the high-pressure nozzle is made of tungsten carbide alloy and sealed with a high-pressure rubber sealing ring; the thickness of the guide plate is 30-50mm and it is made of carbon steel; the guide plate adopts a structure that is thin in the middle and thick on both sides.
[0011] Preferred technical solution five: the roller, the screen cylinder, and the central shaft are all inclined, with an inclination of 5-10°.
[0012] Compared with the prior art, this utility model provides a new type of high-efficiency soil leaching and remediation drum screen with the following beneficial effects: In use, the crushed soil is put into the drum, and the central shaft and drum are rotated by the drive motor. At the same time, the external agent is sprayed out through the high-pressure nozzle, so that the agent and soil are mixed. The guide plate can cut and mix the soil to a certain extent, so that the agent and soil are mixed more thoroughly. When the soil and agent flow into the inside of the screen cylinder, the mixture of soil and agent flows into the inside of the storage hood through the screen hole of the screen cylinder and is discharged through the discharge pipe to the next process for further processing. Some stones and garbage in the soil flow out to the outside through the opening at the tail end of the screen cylinder and the action of the guide hood. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the internal structure of the drum and screen cylinder of this utility model;
[0015] Figure 3 This is an exploded view of the water pipe and central shaft structure of this utility model.
[0016] In the diagram: 1. Support frame; 2. Support base; 3. Central shaft; 4. Water permeable pipe; 5. High-pressure nozzle; 6. Roller; 7. Screen cylinder; 8. Support rod; 9. Fixed base; 10. Reducer; 11. Drive motor; 12. Flow guide; 13. Storage cover; 14. Discharge pipe; 15. Flow guide plate; 16. Rotary joint; 17. Water pipe; 18. Valve. Detailed Implementation
[0017] Please see Figure 1-3 ,
[0018] Example 1: A novel high-efficiency soil leaching remediation drum screen includes a support frame 1, with support seats 2 fixedly installed at both ends of the top of the support frame 1, and a central shaft 3 rotatably installed between the two support seats 2. A water outlet pipe 4 is opened inside the central shaft 3, and two rows of high-pressure nozzles 5 are symmetrically distributed on the surface of the central shaft 3. A drum 6 is installed on the outside of the central shaft 3, and a guide plate 15 is fixedly installed on the inner wall of the drum 6.
[0019] A screen cylinder 7 is fixedly installed at the tail end of the drum 6, and three rings of support rods 8 are fixedly connected to the surface of the central shaft 3. The inner walls of the drum 6 and the screen cylinder 7 are fixedly connected to the support rods 8 respectively.
[0020] Example 2: The difference between this example and Example 1 is that a fixed base 9 is fixedly installed at one end of the top of the support frame 1, a reducer 10 is fixedly installed on the upper surface of the fixed base 9, and a drive motor 11 is installed on the side of the reducer 10. The reducer 10 and the drive motor 11 provide power for the rotation of the central shaft 3, so as to drive the drum 6 and the screen cylinder 7 to rotate, mix the soil and the agent, and then screen them.
[0021] Example 3: The difference between this example and Example 1 is that a flow guide hood 12 is fixedly installed on the lower surface of the support frame 1, and the flow guide hood 12 corresponds to the tail outlet of the screen cylinder 7. A storage hood 13 is fixedly installed on the lower surface of the support frame 1, and the storage hood 13 corresponds to the screen cylinder 7. A discharge pipe 14 is connected to the lower surface of the storage hood 13 to facilitate the collection and discharge of the mixed soil and agent, and at the same time facilitate the discharge of filtered stones and large garbage.
[0022] Example 4: The difference between this example and Example 1 is that a rotary joint 16 is installed at one end of the central shaft 3, a water pipe 17 is installed on the rotary joint 16, the water pipe 17 is connected to an external water source, and a valve 18 is provided on the water pipe 17 to facilitate spraying the agent into the soil inside the roller 6.
[0023] Example 5: The difference between this example and Example 1 is that the nozzle of the high-pressure nozzle 5 is made of tungsten carbide alloy and sealed with a high-pressure rubber sealing ring. The thickness of the guide plate 15 is 30-50mm and it is made of carbon steel. The guide plate 15 adopts a structure that is thin in the middle and thick on both sides.
[0024] Example 6: The difference between this example and Example 1 is that the roller 6, the screen cylinder 7, and the central shaft 3 are all inclined, with an inclination of 5-10°.
[0025] In summary, the new high-efficiency soil leaching and remediation drum screen adopts a design that reduces the diameter and increases the length of the drum 6 (the specific length-to-diameter ratio is 3-5, depending on the processing capacity) to increase the soil screening and mixing time with the reagents.
[0026] In use, the crushed soil is put into the drum 6, and the central shaft 3 and the drum 6 are rotated by the drive motor 11. At the same time, the external agent is sprayed out through the high-pressure nozzle 5, so that the agent and the soil are mixed. The guide plate 15 can cut and mix the soil to a certain extent, so that the agent and the soil are mixed more thoroughly. When the soil and agent flow into the screen cylinder 7, the mixture of soil and agent flows into the storage hood 13 through the screen hole of the screen cylinder 7 and is discharged through the discharge pipe 14 to the next process for further processing. Some stones and garbage in the soil flow out to the outside through the opening at the tail end of the screen cylinder 7 and the action of the guide hood 12.
Claims
1. A novel high-efficiency soil leaching remediation drum screen, comprising a support frame (1), characterized in that: The support frame (1) has support seats (2) fixedly installed at both ends of the top. A central shaft (3) is rotatably installed between the two support seats (2). A water outlet pipe (4) is opened inside the central shaft (3). Two rows of high-pressure nozzles (5) are symmetrically distributed on the surface of the central shaft (3). A roller (6) is installed on the outside of the central shaft (3). A guide plate (15) is fixedly installed on the inner wall of the roller (6). A screen cylinder (7) is fixedly installed at the tail end of the roller (6), and three rings of support rods (8) are fixedly connected to the surface of the central shaft (3). The inner walls of the roller (6) and the screen cylinder (7) are respectively fixedly connected to the support rods (8).
2. The novel high-efficiency soil leaching and remediation drum screen according to claim 1, characterized in that: A fixed base (9) is fixedly installed at one end of the top of the support frame (1). A speed reducer (10) is fixedly installed on the upper surface of the fixed base (9). A drive motor (11) is installed on the side of the speed reducer (10). The speed reducer (10) and the drive motor (11) provide power for the rotation of the central shaft (3).
3. The novel high-efficiency soil leaching and remediation drum screen according to claim 1, characterized in that: A flow guide hood (12) is fixedly installed on the lower surface of the support frame (1). The flow guide hood (12) corresponds to the tail outlet of the screen cylinder (7). A storage hood (13) is fixedly installed on the lower surface of the support frame (1). The storage hood (13) corresponds to the screen cylinder (7). A discharge pipe (14) is connected to the lower surface of the storage hood (13).
4. The novel high-efficiency soil leaching and remediation drum screen according to claim 1, characterized in that: A rotary joint (16) is installed at one end of the central shaft (3), and a water pipe (17) is installed on the rotary joint (16). The water pipe (17) is connected to an external water source, and a valve (18) is installed on the water pipe (17).
5. The novel high-efficiency soil leaching and remediation drum screen according to claim 1, characterized in that: The nozzle of the high-pressure nozzle (5) is made of tungsten carbide alloy and sealed with a high-pressure rubber sealing ring. The thickness of the guide plate (15) is 30-50mm and it is made of carbon steel. The guide plate (15) adopts a structure that is thin in the middle and thick on both sides.
6. The novel high-efficiency soil leaching and remediation drum screen according to claim 1, characterized in that: The roller (6), the screen cylinder (7), and the central shaft (3) are all inclined, with an inclination of 5-10°.