Soil screening device for soil remediation

Abstract

The utility model relates to the technical field of soil remediation, and discloses a soil screening device for soil remediation, which comprises a screening mounting assembly, two screening support frames are symmetrically arranged on two sides of the screening mounting assembly, and a soil screening assembly is arranged on the screening mounting assembly. According to the soil screening device, the soil screening assembly is arranged on the screening installation assembly, the screening installation assembly and the soil screening assembly are obliquely arranged at a certain angle, crushed soil thrown into the screening net cylinder can be continuously screened under rotation of the screening net cylinder, and the soil screening device can continuously screen soil while screening is conducted. According to the device, broken soil is continuously added, the screening efficiency of the soil is greatly improved, the device can enable soil particles to continuously collide through rotary rolling movement in a drum-type screening mode, then adhesion of clayed soil to screen holes is reduced, the situation that the screen holes are blocked due to retention of the soil is effectively avoided, and the screening efficiency of the soil is improved. And a certain protection effect on the environment and the health of workers is achieved.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically to a soil screening device for soil remediation. Background Technology

[0002] Soil screening is an important technology in soil remediation. To ensure the thorough mixing of contaminated soil and remediation stabilizers and to protect the soil mixing equipment, the contaminated soil needs to be crushed and screened. By classifying the soil and impurities, the effectiveness of soil remediation can be improved.

[0003] A search revealed that this utility model, authorized by Chinese Patent Publication No. CN 221638698 U, relates to the field of soil remediation technology, specifically a soil screening device for soil remediation. It includes an inclined soil screening frame, a feeding hopper at the feed end of the frame, and uprights at the four corners of the frame's bottom. A vibrating motor is mounted on one outer wall of the frame, and a replaceable screen is installed on the bottom surface. This utility model connects the mounting base of the replaceable screen to the side wall of the soil screening frame using several sets of locking bolts, making the device more flexible and convenient. The screen can be replaced at any time to adjust the aperture size as needed to adapt to different types of soil remediation. The soil collection hopper and impurity collection hopper allow for separate collection of screened soil and impurities for convenient subsequent processing. The vibrating motor mounted on one outer wall of the frame generates vibration, causing the material to vibrate on the screen, which aids in soil screening.

[0004] The screening device in the above patent still has some shortcomings. Most existing soil screening devices use bed screens, but in actual use, the soil often contains moisture, clay or humus, which can easily cause the screen holes to become clogged. At the same time, the bed screen will also generate a lot of dust that is scattered into the air during the soil screening process, causing environmental pollution and harming the health of workers. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a soil screening device for soil remediation. It solves the problem that most existing soil screening devices use bed-type screening meshes, which are prone to clogging of the mesh holes during actual use due to the presence of moisture, clay, or humus in the soil. In addition, the bed-type screening meshes also generate a large amount of dust that is dispersed into the air, causing environmental pollution and harming the health of workers.

[0006] This utility model provides the following technical solution: a soil screening device for soil remediation, including a screening installation assembly, two screening support frames symmetrically arranged on both sides of the screening installation assembly, and a soil screening assembly is provided on the screening installation assembly;

[0007] The screening installation assembly includes a mounting and fixing box, the bottom of which has a discharge port, and two symmetrical installation limiting ports at both ends of the mounting and fixing box.

[0008] The soil screening assembly includes a screening cylinder inserted into the discharge port and penetrating the interior of the mounting box. One end of the screening cylinder is open, and the other end has a feed port. An annular connecting plate is fixed to the end of the screening cylinder, and a plurality of first toothed blocks are evenly arranged on the annular connecting plate. A top connecting plate is fixed to the end of the mounting box, and a driving groove is formed in the middle of the top connecting plate. A driving connecting rod is rotatably arranged in the driving groove, and a plurality of second toothed blocks are evenly arranged on the driving connecting rod. The second toothed blocks mesh with the first toothed blocks for transmission. A driving motor is arranged on the side of the top connecting plate, and the driving shaft of the driving motor is fixedly connected to the end of the driving connecting rod. A plurality of limiting connecting blocks are evenly arranged on the outer side of the end of the screening cylinder, and limiting collars are fitted at both ends of the screening cylinder.

[0009] Preferred technical solution 1: The inner sidewall of the limiting collar is provided with an annular limiting groove, and the limiting connecting blocks are all slidably inserted into the annular limiting groove.

[0010] Preferred technical solution 2: The two sides of the limiting collar are fixedly connected to the screening support frame by fixing rods, and the open end of the screening cylinder is threaded with a closing cap.

[0011] Preferred technical solution 3: The outer side of the mounting and fixing box is connected to the screening support frame through a fixing block.

[0012] This solution enables the installation and fixing box to provide stable positioning for the soil screening components installed inside, supported by the screening support frame.

[0013] Preferred technical solution four: The middle part of the screening cylinder is mesh-like.

[0014] This design enables the soil to be screened to pass through the screening mesh holes in the middle of the screening cylinder during rotation.

[0015] Preferred technical solution five: The screening installation component and the soil screening component installed thereon are both inclined, and the height of one end of the screening support frame is higher than the height of the other end.

[0016] This solution enables the screening support frame to provide more stable support for the inclined screening installation components and the screening support frame.

[0017] Compared with the prior art, the present invention provides a soil screening device for soil remediation, which has the following beneficial effects:

[0018] (1) This utility model has a soil screening component installed on the screening installation assembly. Both the screening installation assembly and the soil screening component are set at a certain angle. The crushed soil put into the screening cylinder can be continuously screened under the rotation of the screening cylinder. The device can continuously add broken soil while screening, which greatly improves the soil screening efficiency. Moreover, the device uses a drum-type screening method, which can make the soil particles collide and disperse continuously through rotation and tumbling, thereby reducing the adhesion of sticky soil to the screen holes. In addition, the screening cylinder is set at a certain angle, which can push the soil to move forward continuously, effectively avoiding the soil from clogging the screen holes. The top of the installation and fixing box is closed, which effectively reduces the upward drift of dust during the screening process, and plays a certain role in protecting the environment and workers' health. Attached Figure Description

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

[0020] Figure 2 This is an exploded view of the structure of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of the central annular connecting plate;

[0022] Figure 4 For the present utility model Figure 2 A schematic diagram of the structure of the intermediate screening cylinder.

[0023] In the diagram: 1. Screening installation assembly; 2. Screening support frame; 3. Soil screening assembly;

[0024] 101. Install the fixing box; 102. Discharge port; 103. Install the limit port;

[0025] 301. Screening cylinder; 302. Feed inlet; 303. Annular connecting plate; 304. First toothed block; 305. Top connecting plate; 306. Drive groove; 307. Drive connecting rod; 308. Second toothed block; 309. Drive motor; 310. Limiting connecting block; 311. Limiting collar; 312. Annular limiting groove; 313. Closing cover. Detailed Implementation

[0026] Please see Figure 1-4 ,

[0027] Example 1: A soil screening device for soil remediation includes a screening installation component 1, two screening support frames 2 are symmetrically arranged on both sides of the screening installation component 1, and a soil screening component 3 is arranged on the screening installation component 1.

[0028] The screening installation assembly 1 includes an installation fixing box 101, with a discharge port 102 at the bottom end of the installation fixing box 101 and two installation limiting ports 103 symmetrically opened at both ends of the installation fixing box 101.

[0029] The soil screening assembly 3 includes a screening cylinder 301 inserted into the discharge port 102 and passing through the interior of the mounting and fixing box 101. One end of the screening cylinder 301 is open, and the other end of the screening cylinder 301 has a feed port 302. An annular connecting plate 303 is fixed to the end of the screening cylinder 301. Several first toothed blocks 304 are evenly arranged on the annular connecting plate 303. A top connecting plate 305 is fixed to the end of the mounting and fixing box 101. A driving groove 306 is opened in the middle of the top connecting plate 305. A driving connecting rod 307 is rotatably arranged in the driving groove 306. Several second toothed blocks 308 are evenly arranged on the driving connecting rod 307. The second toothed blocks 308 mesh with the first toothed blocks 304 for transmission. A driving motor 309 is arranged on the side of the top connecting plate 305.

[0030] The drive shaft of the drive motor 309 is fixedly connected to the end of the drive connecting rod 307. Several limiting connecting blocks 310 are evenly arranged around the outer side of the end of the screening cylinder 301. Both ends of the screening cylinder 301 are fitted with limiting collars 311. The inner sidewall of the limiting collar 311 is provided with an annular limiting groove 312. The limiting connecting blocks 310 are slidably inserted into the annular limiting groove 312. The two sides of the limiting collar 311 are fixedly connected to the screening support frame 2 through a fixing rod. The open end of the screening cylinder 301 is threadedly connected with a closing cover 313.

[0031] Example 2: The difference between this example and Example 1 is that the outer side of the mounting and fixing box 101 is connected to the screening support frame 2 through a fixing block.

[0032] This allows the mounting box 101 to provide stable positioning of the soil screening component 3 within it, supported by the screening support frame 2.

[0033] Example 3: The difference between this example and Example 1 is that the middle part of the screening cylinder 301 is mesh-like.

[0034] This allows the soil to be screened in the screening cylinder 301 to be screened through the screening mesh holes set in the middle of the screening cylinder 301 during rotation.

[0035] Example 4: The difference between this example and Example 1 is that the screening installation component 1 and the soil screening component 3 installed on it are both inclined, and the height of one end of the screening support frame 2 is higher than the height of the other end.

[0036] This makes the screening support frame 2 more stable in providing stable support for the inclined screening installation assembly 1 and the screening support frame 2.

[0037] In this embodiment, since most existing soil screening devices use bed-type screening mesh, the mesh is prone to clogging due to the presence of moisture, clay, or humus in the soil. In addition, the bed-type screening mesh generates a large amount of dust that is dispersed into the air during the soil screening process, causing environmental pollution and harming the health of workers.

[0038] In summary, in practical implementation, when the user needs to screen the crushed soil again, the user can put the crushed soil into the screening cylinder 301 through the feed inlet 302, and then start the drive motor 309. The drive motor 309 drives the second tooth block 308 to rotate through the drive connecting rod 307. The second tooth block 308 meshes with the first tooth block 304 for transmission, and drives the screening cylinder 301 to rotate through the annular connecting plate 303. Since the two ends of the screening cylinder 301 are slidably limited by the set limit connecting blocks 310 and rotate in the annular limit groove 312 opened in the limit collar 311, the screening cylinder 301 rotates, thereby enabling the input soil to be rolled and screened.

[0039] Furthermore, the device can continuously add crushed soil while screening, which greatly improves the soil screening efficiency. Through the drum screening method, the soil particles can be continuously collided and dispersed through rotation and tumbling, thereby reducing the adhesion of sticky soil to the screen holes. In addition, the screening cylinder 301 is set at a certain angle, which can push the soil to move forward continuously, avoiding soil retention and clogging of the screen holes, thereby improving the overall screening efficiency.

[0040] After screening, the soil falls out through the discharge port 102. Large soil particles that are not screened and remain in the screening cylinder 301 can be removed by the user by unscrewing the closed cover 313 that is threaded at the end of the screening cylinder 301. This makes it easier for the user to discharge the remaining soil. In addition, the top of the mounting box 101 is closed, which greatly reduces the dust generated during the screening process and effectively suppresses the spread of dust, protecting the health of workers and the cleanliness of the environment.

Claims

1. A soil screening device for soil remediation, comprising a screening assembly (1), characterized in that: Two screening support frames (2) are symmetrically arranged on both sides of the screening installation assembly (1), and a soil screening assembly (3) is provided on the screening installation assembly (1); The screening installation assembly (1) includes an installation fixing box (101), the bottom end of which is provided with a discharge port (102), and the two ends of the installation fixing box (101) are symmetrically provided with two installation limiting ports (103). The soil screening assembly (3) includes a screening cylinder (301) inserted into the discharge port (102) and penetrating the interior of the mounting box (101). One end of the screening cylinder (301) is open, and the other end of the screening cylinder (301) has a feed inlet (302). An annular connecting plate (303) is fixed to the end of the screening cylinder (301). Several first toothed blocks (304) are evenly arranged on the annular connecting plate (303). A top connecting plate (305) is fixed to the end of the mounting box (101). A driving groove (306) is provided in the middle of the top connecting plate (305). A drive connecting rod (307) is rotatably arranged inside the drive groove (306). A plurality of second tooth blocks (308) are evenly arranged around the drive connecting rod (307). The second tooth blocks (308) mesh with the first tooth blocks (304) for transmission. A drive motor (309) is arranged on the side of the top connecting plate (305). The drive shaft of the drive motor (309) is fixedly connected to the end of the drive connecting rod (307). A plurality of limiting connecting blocks (310) are evenly arranged around the outer side of the end of the screening cylinder (301). Both ends of the screening cylinder (301) are fitted with limiting collars (311).

2. The soil screening device for soil remediation according to claim 1, characterized in that: The inner wall of the limiting collar (311) is provided with an annular limiting groove (312), and the limiting connecting blocks (310) are all slidably inserted into the annular limiting groove (312).

3. The soil screening device for soil remediation according to claim 2, characterized in that: The two sides of the limiting collar (311) are fixedly connected to the screening support frame (2) by fixing rods, and the open end of the screening screen cylinder (301) is threaded with a closing cover (313).

4. A soil screening device for soil remediation according to claim 3, characterized in that: The outer side of the mounting box (101) is connected to the screening support frame (2) via a fixing block.

5. A soil screening device for soil remediation according to claim 4, characterized in that: The middle part of the screening cylinder (301) is mesh-like.

6. A soil screening device for soil remediation according to claim 5, characterized in that: The screening installation assembly (1) and the soil screening assembly (3) installed thereon are both inclined, and the height of one end of the screening support frame (2) is higher than the height of the other end.

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