A flue gas guiding device for top-loading coke ovens
By introducing the flue gas from the coal charging chamber into the adjacent carbonization chamber through the flue gas guiding device, the problems of flue gas leakage and pressure increase during the coal charging process of the top-charged coke oven are solved, and the effective recovery of flue gas and environmental protection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PROVINCE METALLURGICAL ENG CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-31
AI Technical Summary
During the coal charging process in a top-loading coke oven, the pressure in the carbonization chamber increases significantly, leading to flue gas leakage, causing environmental pollution, and the recovery efficiency of raw coal gas is low.
Design a smoke guiding device, including a smoke guiding hole, a smoke guiding hole cover, a smoke guiding pipe and a lifting device, to guide the flue gas from the coal charging chamber into the adjacent carbonization chamber through the smoke guiding hole, thereby reducing the pressure in the carbonization chamber during the coal charging process and preventing flue gas leakage.
It effectively reduces the pressure in the carbonization chamber, decreases flue gas leakage, increases the recovery of raw coal gas, and mitigates environmental pollution during the coal loading process.
Smart Images
Figure CN224578219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a smoke guiding device for top-loading coke ovens, belonging to the technical field of coking oven production equipment. Background Technology
[0002] In the coking process, coking coal is heated and dry-distilled into coke in the coke oven carbonization chamber in the absence of air. The raw coal gas produced in the dry-distillation process is collected into the gas collection pipe through the riser pipe, bridge pipe and isolation valve, and then transported to the coal gas purification unit for treatment and recovery through the suction pipe.
[0003] During the coal charging process in a top-charged coke oven, after the coking coal is loaded into the carbonization chamber, the coal comes into close contact with the high-temperature furnace walls on both sides of the carbonization chamber. At this time, the moisture and volatile matter in the coal rapidly evaporate, generating a large amount of dust-laden flue gas. The flue gas enters the gas collecting pipe through the riser pipe located on the machine side via the space at the top of the oven. However, during the coal charging process, a large amount of coal falls from the coal charging hole, significantly increasing the resistance of the flue gas generated on the coke side to converge into the riser pipe. This leads to a significant increase in the pressure in the carbonization chamber, causing flue gas leakage from the coke side oven door and coal charging hole seat during the coal charging process, resulting in environmental pollution. Utility Model Content
[0004] The purpose of this invention is to provide a smoke guiding device for top-loading coke ovens, which can effectively reduce the pressure in the carbonization chamber during coal charging, improve the environmental pollution of top-loading coke ovens during coal charging, and solve the problems existing in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a smoke guiding device for top-loading coke ovens, comprising a smoke guiding hole seat, a smoke guiding hole cover, a smoke guiding pipe, and a lifting device, wherein the smoke guiding device is applied to all carbonization chambers of each coke oven group.
[0006] In a preferred aspect of this invention, each carbonization chamber is provided with a smoke guide hole above it. Multiple carbonization chambers are parallel to each other, and all smoke guide holes are interconnected with the carbonization chambers. The smoke guide hole seat is connected to the smoke guide hole via a socket joint. Adjacent smoke guide holes are connected by smoke guide pipes.
[0007] As a preferred aspect of this utility model, the smoke guide hole cover is used in conjunction with the smoke guide hole seat.
[0008] As a preferred aspect of this utility model, the smoke guide hole cover is a water seal cover or a spherical sealing cover.
[0009] As a preferred aspect of this utility model, the flue is installed on the coal charging car on the top of the furnace and moves with the coal charging car to act on different carbonization chambers.
[0010] As a preferred aspect of this utility model, the lifting device is disposed inside the smoke guide tube and is a robotic arm or an electromagnetic cap opener, used to open the smoke guide hole cover.
[0011] As a preferred aspect of this utility model, before coal is loaded into the Nth carbonization chamber, the flue pipe is lowered, and the lifting device opens the flue gas vent cover of the coal loading carbonization chamber and the adjacent carbonization chamber, so that the flue gas in the coal loading carbonization chamber is introduced into the adjacent carbonization chamber and then merged into the gas collection system through the riser pipe of the adjacent carbonization chamber.
[0012] Compared with conventional methods, this utility model has the following advantages or beneficial effects: by introducing a large amount of flue gas generated in the carbonization chamber during coal charging into an adjacent carbonization chamber, the pressure in the carbonization chamber during coal charging is effectively reduced, the problem of smoke emanating from the coke oven door knife edge, coal charging hole seat, and cover is avoided, the recovery of raw coal gas is increased, and the fugitive emissions during the coal charging process of the top-charged coke oven are reduced, resulting in good economic and social benefits. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a layout diagram of a smoke guiding device for a top-loading coke oven according to the present invention.
[0015] Figure 2 yes Figure 1 A cross-sectional view of the coal section before coal loading.
[0016] Figure 3 yes Figure 1 A cross-sectional view of coal during loading.
[0017] In the diagram, 1 is the riser pipe; 2 is the coal charging hole; 3 is the smoke guide hole; 4 is the carbonization chamber; 5 is the smoke guide hole seat; 6 is the smoke guide hole cover; 7 is the smoke guide pipe; and 8 is the lifting device. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0019] Example:
[0020] Please refer to Figures 1 to 3 This utility model provides a technical solution: a smoke guiding device for top-loading coke ovens, comprising a smoke guiding hole seat 5, a smoke guiding hole cover 6, and a smoke guiding pipe 7. The smoke guiding device is applied to all carbonization chambers 4 of each coke oven group, and each coke oven group contains multiple carbonization chambers 4.
[0021] Each carbonization chamber 4 has a smoke guide hole 3 on the coke side above it. All smoke guide holes 3 are connected to the carbonization chamber 4. The smoke guide hole seat 5 is connected to the smoke guide hole 3 by means of a socket.
[0022] In existing top-charging coke ovens, after coking coal is loaded into the carbonization chamber 4, the coal comes into close contact with the high-temperature furnace walls on both sides of the carbonization chamber 4. At this time, the moisture and volatile matter in the coal rapidly evaporate, generating a large amount of dust-laden flue gas. The flue gas enters the gas collecting pipe through the furnace top space via the riser pipe 1 located on the machine side. However, during the coal charging process, a large amount of coal falls from the coal charging hole 2, significantly increasing the resistance of the flue gas generated on the coke side to converge into the riser pipe 1. This results in a significant increase in pressure in the carbonization chamber 4, causing flue gas leakage from the coke side furnace door and coal charging hole seat during the coal charging process, which pollutes the environment.
[0023] The specific implementation of this utility model includes the following steps:
[0024] Before loading coal into carbonization chamber 4 (N), the coal loading car on the top of the furnace, equipped with the flue pipe 7, travels to the corresponding position.
[0025] The flue pipe 7 falls, and the lifting device 8 inside the flue pipe 7 opens the flue hole cover 6 of the coal charging chamber 4 and the adjacent carbonization chamber 4, and the coal charging car on the top of the furnace begins to load coal.
[0026] Coal enters the carbonization chamber through the coal loading hole 2, and after coming into contact with the high-temperature wall, it generates a large amount of dust-containing flue gas.
[0027] In the carbonization chamber 4, which is being loaded with coal, the resistance to the flow of flue gas from the coke side to the riser pipe 1 on the machine side is very high due to the influence of the falling coal.
[0028] A large amount of obstructed flue gas on the coke side enters the adjacent carbonization chamber 4 with lower pressure through the smoke guide hole 3 and the smoke guide pipe 7, and then flows into the gas collection system through the riser pipe 1 of the adjacent carbonization chamber 4.
[0029] The pressure inside coal chemical chamber 4 is being reduced to prevent flue gas leakage and environmental pollution.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A flue gas guiding device for a top-loading coke oven, characterized in that: It includes a smoke guide hole seat (5), a smoke guide hole cover (6), a smoke guide pipe (7), and a lifting device (8); each carbonization chamber (4) is provided with a smoke guide hole (3) above it, and the smoke guide hole (3) and the carbonization chamber (4) are connected; each smoke guide hole (3) is provided with a smoke guide hole seat (5) and an openable smoke guide hole cover (6).
2. A flue gas guiding device for a top-loading coke oven according to claim 1, characterized in that: It also includes a lifting device (8) for opening the smoke guide hole cover (6).
3. A flue gas guiding device for a top-loading coke oven according to claim 1, characterized in that: The plurality of carbonization chambers (4) are parallel, and adjacent smoke guide holes (3) are connected by smoke guide pipes (7).
4. A flue gas guiding device for a top-loading coke oven according to claim 3, characterized in that: The flue pipe (7) is installed on the coal charging car on the top of the furnace and moves with the coal charging car on the top of the furnace.
5. A flue gas guiding device for a top-loading coke oven according to claim 1, characterized in that: The connection between the smoke guide hole seat (5) and the smoke guide hole (3) is a socket type.
6. A flue gas guiding device for a top-loading coke oven according to claim 1, characterized in that: The smoke guide hole cover (6) is a water seal cover or a spherical seal cover.
7. A flue gas guiding device for a top-loading coke oven according to claim 2, characterized in that: The lifting device (8) is a robotic arm or an electromagnetic cap-opening machine.