Crushing and transporting dust suppression system at petroleum coke feeding site
Patent Information
- Application Number
- CN202522464626.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-08-22
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-20
AI Technical Summary
Existing technologies cannot effectively suppress the unorganized spread of dust during the crushing and transfer of petroleum coke, especially in the initial stage of feeding and during material transfer, resulting in serious dust pollution in the plant area.
Dust-suppressing steel plates are laid on the top of the pit, and multiple dust removal pipelines are installed below the feeding box, the crusher discharge pipe, and the enclosed conveyor. Combined with the vibrating feeding mechanism and sealing strips, a multi-point coordinated dust removal structure is constructed to enhance the sealing effect and reduce dust diffusion.
It effectively reduces dust diffusion during petroleum coke crushing and transportation, improves the working environment, reduces fugitive dust emissions within the plant area, and prevents equipment blockage.
Smart Images
Figure CN224929954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon production technology, specifically a crushing, conveying, and dust suppression system for petroleum coke feeding. Background Technology
[0002] Anode carbon production is a crucial upstream link in the aluminum smelting industry, and its production quality directly affects the efficiency and cost of electrolytic aluminum. During anode carbon production, raw materials such as petroleum coke require multi-stage crushing, screening, and conveying. These materials are highly susceptible to generating large amounts of dust during processing, especially at the crushing and conveying stages.
[0003] The pit-type crushing and conveying system commonly used in the industry can perform basic production functions, but it still faces many challenges in dust suppression. Existing technology 2018215186825 discloses a dust removal device for an anode carbon production line, including a pit, a jaw crusher, a belt conveyor, and a dust collection device. The starting end of the belt conveyor is located in the pit, and the discharge pipe of the jaw crusher is located in the pit and above the starting end of the belt conveyor. The dust collection device includes a dust collection hood and a dust collection pipe. The dust collection hood is fitted over the discharge pipe and covers the belt conveyor, and the dust collection pipe is connected to the dust collection hood and extends outside the pit. The anode carbon production line dust removal device also includes an auxiliary dust removal device, which includes an industrial vacuum cleaner and a connecting pipe. The industrial vacuum cleaner is located in the pit, and its discharge pipe is connected to the connecting pipe. The connecting pipe is connected to the dust collection pipe, and the angle between the connecting pipe and the dust collection pipe is less than 30°. The outlet of the connecting pipe faces the outlet of the dust collection pipe. The existing dust removal solutions mentioned above mainly focus on dust collection at the crusher discharge port and localized areas of the pit, failing to systematically cover all dust-generating stages. Petroleum coke begins generating dust from the initial feeding stage, resulting in significant dust emissions at the feeding port. During belt conveyor transport, dust continues to spread due to material flow, drop, and vibration. Furthermore, gaps or height differences at the connection points between the conveyor system and subsequent processing steps can easily create new dust-generating points, leading to fugitive dust emissions. Utility Model Content
[0004] The present invention aims to solve the above problems, thereby providing a dust suppression system for crushing and transporting petroleum coke feeders to reduce dust diffusion within the plant area.
[0005] The technical solution adopted by this utility model to solve the aforementioned problem is: A dust suppression system for crushing and transporting petroleum coke feeders includes a pit, a closed conveyor, and an industrial vacuum cleaner. The top of the pit is covered with a dust suppression steel plate, and a support frame connected to the steel plate is located inside the pit. A crusher is positioned above the pit, and a top-open discharge box is located on top of the crusher. A feed pipe is installed between the discharge box outlet and the crusher inlet. A discharge pipe, penetrating the dust suppression steel plate and extending into the pit, is connected to the crusher outlet. The closed conveyor is inclined and penetrates the dust suppression steel plate. The feed end of the closed conveyor is located inside the pit and opposite the discharge pipe. A vibrating discharge mechanism is installed at the discharge box outlet. The industrial vacuum cleaner is connected to a first dust removal pipe, a second dust removal pipe, and a third dust removal pipe. The first dust removal pipe communicates with the inside of the discharge box. The second dust removal pipe penetrates the dust suppression steel plate, and its suction port is aligned with the discharge point below the outlet of the discharge pipe. The third dust removal pipe penetrates the dust suppression steel plate and connects to the sealed cover of the closed conveyor.
[0006] Compared with the prior art, the present utility model adopting the above technical solution has the following outstanding features: By laying dust-suppressing steel plates on the top of the pit and setting independent dust removal pipelines inside the feeding box, at the material drop point below the crusher discharge pipe, and on the sealed cover of the enclosed conveyor, a multi-point coordinated dust removal structure is constructed. This helps to implement dust suppression interventions at multiple dust-prone stages, such as the initial feeding stage, the material transfer and conveying process, and the interface connection points. This reduces the spread of unorganized dust caused by material crushing and transfer during the production process to a certain extent, which is of positive significance for improving the working area environment and reducing unorganized dust emissions in the plant area. Furthermore, the vibrating feeding mechanism assists in the feeding of petroleum coke and prevents blockage at the discharge port.
[0007] As a preferred embodiment, a further technical solution of this utility model is: Furthermore, the lower part of the feeding box is conical, and the discharge port is located at the bottom of the feeding box, which helps to guide the material to flow towards the central discharge port, reduce the residue and accumulation of material in the box, and thus improve the smoothness of feeding to a certain extent.
[0008] Furthermore, the vibrating feeding mechanism includes a vibrator installed on the lower part of the outer wall of the feeding box. The high-frequency vibration generated is transmitted to the wall of the feeding box or the material inside, which can effectively break the bridging or adhesion phenomenon that is easy to form in petroleum coke materials, and plays a positive role in maintaining the smooth flow of the discharge port and preventing blockage.
[0009] Furthermore, an annular sealing strip is provided around the through hole through which the discharge pipe passes on the dust suppression steel plate. This enhances the sealing effect at the connection and helps reduce the possibility of dust escaping from the gap.
[0010] Furthermore, a gate valve is installed on the feed pipe, which provides the ability to cut off and regulate the material flow from the discharge box to the crusher feed inlet, making it convenient to control the feed rate or to isolate and maintain the equipment section according to actual production needs.
[0011] Furthermore, the third dust removal pipeline includes a main pipeline arranged along the enclosed conveyor, and multiple suction branch pipes connected to the main pipeline. Each suction branch pipe is evenly distributed along the length of the conveyor, which expands the dust collection coverage within the conveyor's sealed enclosure and helps to collect dust that may be generated during the long-distance transport of materials more continuously. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; The following are marked in the diagram: 1. Pit 2. Dust suppression steel plate 3. Crusher 4. Feeding box 5. Feed pipe 6. Discharge pipe 7. First dust removal pipeline 8. Second dust removal pipeline 9. Third dust removal pipeline 10. Enclosed conveyor 11. Vibrator 12. Gate valve Detailed Implementation
[0013] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0014] A dust suppression system for crushing and transporting petroleum coke feeders includes a pit 1, a closed conveyor 10, and an industrial vacuum cleaner. A dust suppression steel plate 2 is laid on top of the pit 1. A support frame connected to the dust suppression steel plate 2 is installed inside the pit 1. A crusher 3 is installed above the pit 1, and a top-opening discharge box 4 is installed on top of the crusher 3. The crusher 3 and the discharge box 4 span across the pit 1 and are connected to the ground at the edge of the pit 1 by a support frame. A feed pipe 5 is installed between the discharge port of the discharge box 4 and the feed port of the crusher 3. An outlet pipe extending through the dust suppression steel plate 2 and into the pit 1 is connected to the discharge port of the crusher 3. The material pipe 6 and the enclosed conveyor 10 are inclined and pass through the dust suppression steel plate 2. The feed end of the enclosed conveyor 10 is located in the pit 1 and is opposite to the discharge pipe 6. The discharge port of the discharge box 4 is equipped with a vibrating feeding mechanism. The industrial vacuum cleaner is connected to the first dust removal pipe 7, the second dust removal pipe 8 and the third dust removal pipe 9 respectively. The first dust removal pipe 7 is connected to the inside of the discharge box 4. The second dust removal pipe 8 passes through the dust suppression steel plate 2 and its air intake is aligned with the drop point below the outlet of the discharge pipe 6. The third dust removal pipe 9 passes through the dust suppression steel plate 2 and is connected to the sealing cover of the enclosed conveyor 10.
[0015] A settling box is installed between the industrial vacuum cleaner and the first dust removal pipe 7, the second dust removal pipe 8, and the third dust removal pipe 9. This settling box performs primary separation of the inhaled dust-laden gas, intercepting most of the coarse particles. This effectively prevents dust particles from accumulating and clogging inside the dust removal pipes and the industrial vacuum cleaner, ensuring the long-term stable operation of the dust removal system and reducing maintenance frequency. Furthermore, the lower part of the discharge box 4 is conical, and the discharge port is located at the bottom of the discharge box 4, which helps to guide the material to flow towards the central discharge port, reduce the residue and accumulation of material in the box, and thus improve the smoothness of material discharge to a certain extent.
[0016] Furthermore, the vibrating feeding mechanism includes a vibrator 11 installed on the lower part of the outer wall of the feeding box 4. The high-frequency vibration generated is transmitted to the wall or the material inside the feeding box 4, which can effectively break the bridging or adhesion phenomenon that is easy to form in petroleum coke materials, and plays a positive role in maintaining the smooth flow of the discharge port and preventing blockage.
[0017] Furthermore, an annular sealing strip is provided around the through hole through which the discharge pipe 6 passes on the dust suppression steel plate 2, which enhances the sealing effect at the connection and helps reduce the possibility of dust escaping outward from the gap. Annular sealing strips are also provided around the through holes through which the second dust removal pipe 8 and the third dust removal pipe 9 pass.
[0018] Furthermore, a gate valve 12 is provided on the feed pipe 5, which provides the ability to cut off and regulate the material flow between the discharge box 4 and the feed inlet of the crusher 3, so as to control the feed amount or perform isolation maintenance of the equipment section according to actual production needs.
[0019] Furthermore, the third dust removal pipe 9 includes a main pipe arranged along the enclosed conveyor 10, and multiple suction branch pipes connected to the main pipe. Some of the suction branch pipes penetrate the dust suppression steel plate 2. Each suction branch pipe is evenly distributed along the length of the conveyor, which expands the dust collection coverage of the conveyor's sealed cover and helps to collect dust that may be generated during the long-distance transportation of materials more continuously.
[0020] By laying dust-suppressing steel plates 2 on the top of the pit 1, and setting independent dust removal pipelines inside the feeding box 4, below the material drop point of the crusher 3 discharge pipe 6, and on the sealing cover of the enclosed conveyor 10, a multi-point coordinated dust removal structure is constructed. This helps to implement dust suppression intervention in multiple dust-prone links such as the initial stage of feeding, the material transfer and conveying process, and the interface connection. This reduces the spread of unorganized dust caused by material crushing and transfer during the production process to a certain extent, which is of positive significance for improving the working area environment and reducing the unorganized dust emissions in the plant area. Furthermore, the vibrating feeding mechanism assists in the feeding of petroleum coke and prevents blockage at the discharge port.
[0021] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A dust suppression system for crushing and conveying petroleum coke feeders, comprising a pit, a closed conveyor, and an industrial vacuum cleaner, characterized in that: The top of the pit is covered with a dust-suppressing steel plate, and a support frame connected to the dust-suppressing steel plate is installed inside the pit. A crusher is installed above the pit, and a top-open discharge box is installed on the top of the crusher. A feed pipe is installed between the discharge port of the discharge box and the feed port of the crusher. A discharge pipe that penetrates the dust-suppressing steel plate and extends into the pit is connected to the discharge port of the crusher. An enclosed conveyor is inclined and penetrates the dust-suppressing steel plate. The feed end of the enclosed conveyor is located inside the pit and is opposite to the discharge pipe. A vibrating feeding mechanism is installed at the discharge port of the discharge box. An industrial vacuum cleaner is connected to a first dust removal pipe, a second dust removal pipe, and a third dust removal pipe. The first dust removal pipe is connected to the inside of the discharge box. The second dust removal pipe penetrates the dust-suppressing steel plate and its suction port is aligned with the drop point below the discharge pipe outlet. The third dust removal pipe penetrates the dust-suppressing steel plate and is connected to the sealing cover of the enclosed conveyor.
2. The crushing, conveying, and dust suppression system for petroleum coke feeding as described in claim 1, characterized in that: The lower part of the feeding box is conical, and the discharge port is located at the bottom of the feeding box.
3. The crushing, conveying, and dust suppression system for petroleum coke feeding as described in claim 1 or 2, characterized in that: The vibratory feeding mechanism includes a vibrator installed on the lower part of the outer wall of the feeding box.
4. The crushing, conveying, and dust suppression system for petroleum coke feeding as described in claim 1, characterized in that: The dust suppression steel plate has an annular sealing strip around the through hole through which the discharge pipe passes.
5. The crushing, conveying, and dust suppression system for petroleum coke feeding as described in claim 1, characterized in that: A gate valve is installed on the feed pipe.
6. The crushing, conveying, and dust suppression system for petroleum coke feeding as described in claim 1, characterized in that: The third dust removal pipeline includes a main pipeline arranged along the closed conveyor, and multiple suction branch pipes connected to the main pipeline, with each suction branch pipe evenly distributed along the length of the conveyor.