Smoke removal device of coking machine
By designing a smoke removal device for coking machines, the airflow direction is controlled by pneumatic valves in the base pipe and regulating pipe. Combined with the weight of the material and the aerodynamic force, flue gas recirculation is achieved, solving the problem of flue gas escape from the coal charging port of the coking machine and improving the smoke removal effect and operational safety.
Patent Information
- Application Number
- CN202423265665.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When the coal charging port of the existing coking machine is opened, the flue gas from the furnace head will gush out. The existing side smoke hoods are not effective in removing smoke, which affects the health of the operators.
Design a smoke removal device for a coking machine, including a base pipe and a regulating pipe, equipped with a valve cover, a pneumatic valve port and a pipe connector. By controlling the direction of gas flow, the device uses the weight of the material and the pneumatic force to isolate the escape of flue gas and realize the return of flue gas to the furnace body.
It effectively isolates furnace fumes from overflowing, protects the health of operators, prevents material accumulation, and improves the smoke removal effect.
Smart Images

Figure CN223646498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal coking technology, specifically to a smoke removal device for a coking machine. Background Technology
[0002] A coking machine is a device used to isolate solid fuels such as coal from air at high temperatures, and through stages such as drying, pyrolysis, melting, bonding, and solidification, ultimately produce coke. The coal coking process emits a large amount of coking flue gas. Currently, to ensure environmental protection, various flue gas purification devices are installed in conjunction with these devices in the flue gas emission pipelines. However, when the coal charging port is opened, smoke from the furnace head will gush out. Current technology only uses side smoke hoods for smoke removal, but the effect is unsatisfactory and has a significant impact on the health of operators. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a smoke removal device for a coking machine that can effectively prevent the escape of flue gas.
[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a smoke removal device for a coking machine, comprising a base pipe and two sets of regulating pipes connected to both ends of the base pipe. The outer ends of both sets of regulating pipes are connected with flange rings, and valve covers are connected inside the regulating pipes. Both valve covers open and close unidirectionally towards the end away from the base pipe. Multiple sets of pneumatic valve ports are also connected to the base pipe. The pneumatic valve ports control the unidirectional flow of gas from the outside of the base pipe to the inside of the base pipe. Pipe connection nozzles are also connected to the base pipe at the positions corresponding to the pneumatic valve ports.
[0005] The regulating tube is made of heat-resistant material.
[0006] A hand groove is also provided on the valve cover of the outermost regulating pipe.
[0007] The regulating tube has a sealing ridge protruding outward at one end facing the base tube, and both ends of the base tube have a sealing groove recessed inward to match the sealing ridge.
[0008] The pneumatic valve port includes a slot that penetrates the side wall of the base pipe and a valve seat located in the slot. A control element for controlling gas flow is elastically connected inside the valve seat.
[0009] The valve seat has a valve cavity that runs through its upper and lower walls in the middle. The control component includes a sealing port formed in the middle of the valve cavity and a sealing plug that is elastically slidably disposed in the sealing port.
[0010] The lower end of the sealing plug extends to the lower part of the sealing port and is provided with a sealing valve ball. A spring body is connected between the sealing plug and the upper wall of the sealing port. The upper part of the valve cavity is provided with a flange for preventing the sealing plug from sliding vertically. The sealing plug is also recessed with several flow channels that can accommodate gas flow.
[0011] The advantages of this utility model compared with the prior art are as follows: When used in this application, the base pipe and regulating pipe installed at the furnace head mouth cooperate to provide isolation during operations such as opening the furnace mouth and loading materials, which can effectively isolate the overflow of furnace smoke. The direction of gas flow is controlled by the cooperation of two valve covers, and the additionally set pipe connection nozzle can be connected to an auxiliary gas pipe for pneumatic material conveying, preventing materials from accumulating in the base pipe. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a smoke removal device for a coking machine.
[0013] Figure 2 This is a structural schematic diagram of a smoke removal device for a coking machine from a second perspective.
[0014] Figure 3 This is a structural schematic diagram of a cross-sectional view of a smoke removal device for a coking machine.
[0015] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of section A in the middle. Detailed Implementation
[0016] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. (See attached drawings.) Figure 1-4 A smoke removal device for a coking machine includes a base pipe 1 and two sets of regulating pipes 2 connected to both ends of the base pipe 1. Flange rings 3 are connected to the outer ends of both sets of regulating pipes 2. For ease of use, valve covers 4 are connected inside each regulating pipe 2. Both valve covers 4 open and close unidirectionally towards the end away from the base pipe 1. The coordinated arrangement of the two valve covers 4 ensures that when the outer valve cover 4 is opened, the valve cover near the furnace head will not open, thus preventing smoke escape. After loading, the outermost valve cover 4 is closed, and the weight of the material causes the valve cover 4 near the furnace head to open and enter the furnace head. To further enhance the performance, multiple sets of pneumatic valve ports are also connected to the base pipe 1. These pneumatic valve ports control unidirectional gas flow from the outside to the inside of the base pipe 1. Pipe connectors 5 are also connected to the base pipe 1 at the positions of the pneumatic valve ports. Through external pneumatic pipes, pneumatic feeding is achieved, and smoke that escapes into the base pipe is returned to the furnace body.
[0017] In one embodiment: the regulating pipe 2 is made of heat-resistant material, and a hand groove 6 is also connected to the valve cover 4 of the outermost regulating pipe 2, so that workers can operate and use it conveniently through the hand groove 6.
[0018] In one embodiment: In order to facilitate the replacement and maintenance of various components, the adjusting tube 2 is provided with a sealing ridge 7 protruding outward at one end facing the base tube 1, and both ends of the base tube 1 are provided with a sealing groove 8 that fits the sealing ridge 7.
[0019] In one embodiment: the pneumatic valve port includes a slot 9 penetrating the side wall of the base pipe 1 and a valve seat 10 disposed within the slot 9. A control element for controlling gas flow is elastically connected within the valve seat 10. The valve seat 10 has a valve cavity 11 penetrating its upper and lower walls in the middle. The control element includes a sealing port 12 formed in the middle of the valve cavity 11 and a sealing plug 13 elastically slidably disposed within the sealing port 12.
[0020] The lower end of the sealing plug 13 extends to the lower part of the sealing port 12 and is provided with a sealing valve ball 15. A spring body 14 is connected between the sealing plug 13 and the upper wall of the sealing port 12. The upper part of the valve cavity 11 is provided with a flange 16 to prevent the sealing plug 13 from sliding vertically. The sealing plug 13 is also recessed with several flow channels 17 that can accommodate gas flow. After gas is supplied from the external gas pipeline, the sealing valve ball 15 is controlled by the gas pressure to slide toward the inside of the base tube 1. The spring is compressed, and the gas flows into the base tube. The valve cover at the end away from the furnace head can be manually pressed or a pin can be added to prevent it from opening. The valve cover on the side closer to the furnace head is opened by the weight of the material and the gas pressure, thereby completing the use of loading materials.
[0021] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A smoke removal device for a coking machine, characterized in that: It includes a base pipe (1) and two sets of regulating pipes (2) connected to both ends of the base pipe (1). The outer ends of the two sets of regulating pipes (2) are connected to flange rings (3), and valve covers (4) are connected inside the regulating pipes (2). The two valve covers (4) open and close unidirectionally towards the end away from the base pipe (1). Multiple sets of pneumatic valve ports are also connected to the base pipe (1). The pneumatic valve ports control the unidirectional flow of gas from the outside of the base pipe (1) to the inside of the base pipe (1). Pipe connection nozzles (5) are also connected to the base pipe (1) in accordance with the position of the pneumatic valve ports.
2. The smoke removal device for a coking machine according to claim 1, characterized in that: The regulating tube (2) is made of heat-resistant material.
3. A smoke removal device for a coking machine according to claim 1 or 2, characterized in that: A hand groove (6) is also connected to the valve cover (4) of the outermost regulating pipe (2).
4. A smoke removal device for a coking machine according to claim 1 or 2, characterized in that: The regulating tube (2) has a sealing ridge (7) protruding outward at one end facing the base tube (1), and both ends of the base tube (1) have a sealing groove (8) recessed inward to match the sealing ridge (7).
5. A smoke removal device for a coking machine according to claim 4, characterized in that: The pneumatic valve port includes a slot (9) that penetrates the side wall of the base pipe (1) and a valve seat (10) located in the slot (9). A control element for controlling gas flow is elastically connected inside the valve seat (10).
6. A smoke removal device for a coking machine according to claim 5, characterized in that: The valve seat (10) has a valve cavity (11) in the middle that runs through its upper and lower walls. The control component includes a sealing port (12) formed in the middle of the valve cavity (11) and a sealing plug (13) that is elastically slidably disposed in the sealing port (12). The lower end of the sealing plug (13) extends to the lower part of the sealing port (12) and is provided with a sealing valve ball (15). A spring body (14) is provided between the sealing plug (13) and the upper wall of the sealing port (12). The upper part of the valve cavity (11) is provided with a flange (16) for blocking the vertical sliding of the sealing plug (13). The sealing plug (13) is also recessed with several flow channels (17) that can accommodate gas flow.