A sealing gate plate for improving safety performance of a pyrolytic desorption sludge disposal system
By designing and adjusting the feed inlet and conveying mechanism in the thermal desorption sludge treatment system, the problems of stable conveying and sealing of highly fluid materials are solved, ensuring equipment safety and feed stability, preventing oxygen from entering, and avoiding system depressurization and explosion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGXIAN CONCH ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-16
AI Technical Summary
Existing thermal desorption sludge treatment systems struggle to achieve material self-sealing when handling highly fluid materials with high liquid content, leading to oxygen intrusion, disrupting the system's low-oxygen environment, and posing risks of pressure relief and explosion.
Design a sealing gate that includes a hopper, a conveying cylinder, an adjusting mechanism, a monitoring mechanism, and a conveying mechanism. By adjusting the size of the feed inlet and the material conveying speed, stable feeding is ensured and air is prevented from entering. The material is conveyed by motor-driven auger blades and sealed by adjustable baffles.
It achieves stable conveying and sealing of highly fluid materials, prevents oxygen from entering, improves equipment safety and feeding process stability, and avoids system depressurization and explosion.
Smart Images

Figure CN224361926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of devices for improving the efficiency and safety performance of thermal desorption treatment, specifically to a sealing gate for improving the safety performance of a thermal desorption sludge treatment system. Background Technology
[0002] The intermittent thermal desorption sludge treatment system, designed by Zhejiang Yikeou Environmental Protection Technology Co., Ltd., is applied to the sludge treatment at Zhongxian Conch Environmental Protection. This equipment utilizes a combination of indirect reactor heating (gradient heating, isothermal heating + independent harmless combustion chamber dual heating mechanism) and a dual sealing method (quantitative silo material self-sealing + inert gas sealing) to ensure safe sealing and efficient transport of sludge. However, the original design's quantitative silo material self-sealing was insufficient for the high-flow-rate, high-liquid-content materials from oil wells in the Southwest region. Consequently, oxygen frequently entered the treatment system during operation, disrupting the system's low-oxygen balance, causing system depressurization, and in severe cases, leading to a violent reaction between oil and oxygen, potentially resulting in a system explosion.
[0003] Based on this, a sealing gate is now provided to improve the safety performance of a thermal desorption sludge treatment system, which can eliminate the drawbacks of existing devices. Utility Model Content
[0004] To address the aforementioned issues, a sealing gate is provided to improve the safety performance of a thermal desorption sludge treatment system, and the problems mentioned above are solved through an adjustment mechanism.
[0005] To address the existing technical problems, this utility model provides a sealing gate to improve the safety performance of a thermal desorption sludge treatment system, comprising a hopper, with symmetrically arranged transmission cylinders at the lower end of the hopper, each transmission cylinder having a base installed at its lower end, each transmission cylinder having a transmission mechanism for conveying materials inside, the hopper having an adjustment mechanism for controlling the conveying of materials inside, and a monitoring mechanism on the side wall of the hopper.
[0006] Preferably, the transmission mechanism includes a motor, a first auger blade, a connecting shaft, and a second auger blade. The motor is symmetrically arranged on the base, and the connecting shaft is symmetrically rotated inside the transmission cylinder. The outer wall of the connecting shaft is provided with a first auger blade or a second auger blade that cooperates with each other. The output end of the motor is connected to one end of the connecting shaft.
[0007] Preferably, the monitoring mechanism includes an electric actuator, a fixed frame, a first connecting frame, a first connecting piece, a second connecting piece, a second connecting frame, and blades. The fixed frame is fixedly installed on the outer wall of the hopper, and the electric actuator is installed on the fixed frame. The output end of the electric actuator is connected to the first connecting frame. A second connecting frame is rotatably provided on the other side wall of the first connecting frame. The first connecting piece and the second connecting piece are installed on the side wall of the hopper via a rotating shaft. The other end of the first connecting piece is rotatably engaged with the inner wall of the first connecting frame, and the other end of the second connecting piece is rotatably engaged with the inner wall of the second connecting frame. The other end of the rotating shaft passes through the side wall of the hopper and connects to the blades.
[0008] Preferably, the adjusting mechanism includes a lead screw, a mounting frame, a sliding seat, a baffle, and a limiting slide rail. The mounting frame is obliquely mounted on the side wall of the hopper. The lead screw is rotatably mounted inside the mounting frame. The sliding seat is sleeved on the outer wall of the lead screw. The sliding seat has a thread that mates with the lead screw. The baffle is provided on the side wall of the sliding seat. The baffle slides on the mounting frame and the oblique plate. The oblique plate is fixedly mounted on the inner wall of the hopper. The limiting slide rails for limiting the baffle are symmetrically provided on the inner wall of the hopper.
[0009] Preferably, the other end of the lead screw passes through the side wall of the mounting bracket and connects to the rotating disk.
[0010] Preferably, each of the conveying cylinders has a feed inlet on one end of its bottom wall.
[0011] The advantages of this utility model compared to the prior art are:
[0012] This invention features an adjustable baffle at the feed inlet. When feeding is required, if the liquid is highly fluid, simply opening the baffle by 10% allows the material to flow downwards on its own, ensuring stable feeding. When the material is about to run out, closing the baffle not only effectively blocks the originally flowing liquid material but also acts as an airlock, preventing air from entering and ensuring the stability of the entire feeding process and the safety of the equipment. Attached Figure Description
[0013] Figure 1 This is an elevation view of a sealing gate that improves the safety performance of a thermal desorption sludge treatment system.
[0014] Figure 2 This is a side view of a sealing gate that improves the safety performance of a thermal desorption sludge treatment system.
[0015] Figure 3 This is a schematic diagram of the adjustment mechanism of a sealing gate that improves the safety performance of a thermal desorption sludge treatment system.
[0016] The following are the labels in the diagram: 101, base; 102, transmission cylinder; 103, hopper; 104, feed inlet; 200, transmission mechanism; 201, motor; 202, first auger blade; 203, connecting shaft; 204, second auger blade; 300, monitoring mechanism; 301, electric actuator; 302, fixing frame; 303, first connecting frame; 304, first connecting piece; 305, second connecting piece; 306, second connecting frame; 307, blade; 400, adjusting mechanism; 401, rotating disk; 402, lead screw; 403, mounting frame; 404, sliding seat; 405, baffle; 406, inclined plate; 407, limit slide rail. Detailed Implementation
[0017] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0018] Reference Figures 1-3 A sealing gate for improving the safety performance of a thermal desorption sludge treatment system includes a hopper 103. A conveying cylinder 102 is symmetrically arranged at the lower end of the hopper 103. A base 101 is installed at the lower end of each conveying cylinder 102. A conveying mechanism 200 for conveying material is provided inside each conveying cylinder 102. An adjusting mechanism 400 for controlling the conveying is provided inside the hopper 103. A monitoring mechanism 300 is provided on the side wall of the hopper 103.
[0019] The size of the feed inlet 104 can be adjusted by the adjustment mechanism 400, and the stability of the entire feeding process and the safety of the equipment can be ensured by controlling the feeding speed. The material inventory can be monitored in real time by the monitoring mechanism 300.
[0020] Reference Figure 1 The transmission mechanism 200 includes a motor 201, a first auger blade 202, a connecting shaft 203, and a second auger blade 204. The motor 201 is symmetrically arranged on the base 101. The connecting shaft 203 is symmetrically rotatably arranged inside the transmission cylinder 102. The outer wall of the connecting shaft 203 is provided with a first auger blade 202 or a second auger blade 204 that cooperate with each other. The output end of the motor 201 is connected to one end of the connecting shaft 203.
[0021] The starting motor 201 can drive the connecting shaft 203 to rotate, and the connecting shaft 203 can drive the first auger blade 202 and the second auger blade 204 to rotate, which can realize the uniform transportation of materials.
[0022] Reference Figures 1-2The monitoring mechanism 300 includes an electric actuator 301, a fixed frame 302, a first connecting frame 303, a first connecting piece 304, a second connecting piece 305, a second connecting frame 306, and a blade 307. The fixed frame 302 is fixedly installed on the outer wall of the hopper 103. The electric actuator 301 is installed on the fixed frame 302. The output end of the electric actuator 301 is connected to the first connecting frame 303. The second connecting frame 306 is rotatably mounted on the other side wall of the first connecting frame 303. The first connecting piece 304 and the second connecting piece 305 are mounted on the side wall of the hopper 103 via a rotating shaft. The other end of the first connecting piece 304 is rotatably engaged with the inner wall of the first connecting frame 303. The other end of the second connecting piece 305 is rotatably engaged with the inner wall of the other end of the second connecting frame 306. The other end of the rotating shaft passes through the side wall of the hopper 103 and connects to the blade 307.
[0023] The start-up of the electric actuator 301 can drive the first connecting frame 303 and the second connecting frame 306 to move, thereby rotating the first connecting piece 304 and the second connecting piece 305, and thus rotating the blade 307. When the blade 307 is not in contact with the material, the rotational resistance is small, and the blade 307 maintains a uniform rotation speed. When the blade 307 contacts the material, the material generates resistance on the blade 307, which obstructs the rotation of the blade 307, and the rotational speed decreases or stops.
[0024] Reference Figure 3 The adjusting mechanism 400 includes a lead screw 402, a mounting frame 403, a sliding seat 404, a baffle 405, an inclined plate 406, and a limiting slide rail 407. The mounting frame 403 is obliquely mounted on the side wall of the hopper 103. The lead screw 402 is rotatably mounted inside the mounting frame 403. The sliding seat 404 is sleeved on the outer wall of the lead screw 402. The sliding seat 404 has a thread that mates with the lead screw 402. The baffle 405 is provided on the side wall of the sliding seat 404. The baffle 405 slides on the mounting frame 403 and the inclined plate 406. The inclined plate 406 is fixedly mounted on the inner wall of the hopper 103. The limiting slide rail 407 for limiting the baffle 405 is symmetrically provided on the inner wall of the hopper 103.
[0025] The lead screw 402 rotates, and this lead screw 402 can be controlled by an actuator. The rotation of the lead screw 402 can drive the sliding seat 404 to reciprocate, so that the baffle 405 can reciprocate to adjust the size of the feed inlet 104. As the position of the baffle 405 is adjusted, the material in the hopper 103 flows down the inclined plate 406 evenly according to the opening of the feed inlet 104. With the help of gravity, the material finally enters the transmission mechanism 200 for the next processing step. When the feed inlet 104 is closed, the upper limiting slide rail 407 plays a dual role. It not only provides the necessary guidance to ensure the stability of uniform feeding, but also plays a sealing role.
[0026] Reference Figure 3 The other end of the lead screw 402 passes through the side wall of the mounting bracket 403 and connects to the rotating disk 401.
[0027] The rotating disk 401 can drive the lead screw 402 to rotate.
[0028] Reference Figures 1-2 Each of the conveying cylinders 102 has a feed inlet 104 on one end of its bottom wall.
[0029] The feed inlet 104 can be adjusted in size to allow different types of materials to pass through.
[0030] Working principle: Starting the electric actuator 301 moves the first connecting frame 303 and the second connecting frame 306, causing the first connecting plate 304 and the second connecting plate 305 to rotate, thus rotating the blade 307. When the blade 307 is not in contact with the material, the rotational resistance is small, and the blade 307 maintains a uniform rotation speed. When the blade 307 contacts the material, the material generates resistance, hindering the rotation of the blade 307, reducing or stopping its rotational speed. The lead screw 402 rotates, and this lead screw 402 can be controlled by an actuator. The rotation of the lead screw 402 drives the sliding seat 404 to reciprocate, causing the baffle 405 to reciprocate, adjusting the size of the feed inlet 104. As the position of the baffle 405 is adjusted, the material in the hopper 103 flows evenly downward along the inclined plate 406 according to the opening of the feed inlet 104. With the help of gravity, the material eventually enters the conveying mechanism 200 for the next processing step. The starting motor 201 can drive the connecting shaft 203 to rotate, and the connecting shaft 203 can drive the first auger blade 202 and the second auger blade 204 to rotate, which can achieve uniform transportation of the material. When the feed inlet 104 is closed, the upper limiting slide rail 407 plays a dual role. It not only provides the necessary guidance to ensure the stability of uniform feeding, but also has a sealing effect.
[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A sealing damper for improving the safety performance of a pyrolytic desorption sludge disposal system, characterized in that, The application relates to a material conveying device, which comprises a material bin (103), the lower end of the material bin (103) is symmetrically provided with conveying cylinders (102), the lower end of each of the conveying cylinders (102) is provided with a base (101), each of the conveying cylinders (102) is provided with a conveying mechanism (200) for conveying material, the material bin (103) is provided with an adjusting mechanism (400) for controlling the conveying of material, and a monitoring mechanism (300) is arranged on the side wall of the material bin (103).
2. The sealed shutter according to claim 1, wherein, The conveying mechanism (200) comprises motors (201), first dragon blades (202), connecting shafts (203) and second dragon blades (204), the base (101) is symmetrically provided with the motors (201), the conveying cylinders (102) are symmetrically and rotatably provided with the connecting shafts (203), the outer wall of each of the connecting shafts (203) is provided with the first dragon blades (202) or the second dragon blades (204) which are matched with each other, and one end of each of the connecting shafts (203) is connected with the output end of the motor (201).
3. The sealed shutter according to claim 1, wherein, The monitoring mechanism (300) comprises electric push rods (301), fixing frames (302), first connecting frames (303), first connecting plates (304), second connecting plates (305), second connecting frames (306) and blades (307), the outer wall of the material bin (103) is fixedly provided with the fixing frame (302), the fixing frame (302) is provided with the electric push rod (301), the output end of the electric push rod (301) is connected with the first connecting frame (303), the other end of the first connecting frame (303) is rotatably provided with the second connecting frame (306), the first connecting plate (304) and the second connecting plate (305) are arranged on the side wall of the material bin (103) through rotating shafts, the other end of the first connecting plate (304) is rotatably matched with the middle inner wall of the first connecting frame (303), the other end of the second connecting plate (305) is rotatably matched with the other end inner wall of the second connecting frame (306), and the other end of the rotating shaft is connected with the blade (307) penetrating through the side wall of the material bin (103).
4. The sealed shutter according to claim 1, wherein, The adjusting mechanism (400) comprises lead screws (402), mounting frames (403), sliding seats (404), baffles (405), inclined plates (406) and limiting sliding rails (407), the mounting frame (403) is obliquely arranged on the side wall of the material bin (103), the mounting frame (403) is rotatably provided with the lead screw (402), the outer wall of the lead screw (402) is provided with the sliding seat (404), the sliding seat (404) is provided with threads matched with the lead screw (402), the side wall of the sliding seat (404) is provided with the baffle (405), the baffle (405) slides on the mounting frame (403) and the inclined plate (406), the inclined plate (406) is fixedly arranged on the inner wall of the material bin (103), and the limiting sliding rails (407) for limiting the baffle (405) are symmetrically arranged on the inner wall of the material bin (103).
5. The sealed shutter according to claim 4, wherein, The other end of the lead screw (402) is connected with the rotating disc (401) penetrating through the side wall of the mounting frame (403).
6. The sealed shutter according to claim 1, wherein, The bottom wall of one end of each of the conveying cylinders (102) is provided with a feeding port (104).