Tamping type coke oven closed greenhouse
Through the design of the closed greenhouse of tamping coke oven, the problem of smoke and dust escape of tamping coke oven is solved, the unorganized emission control of the coke oven is realized, and environmental protection is ensured.
Patent Information
- Application Number
- CN202422400137.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The smoke generated by the tamping coke oven during the coal loading and coking discharge process cannot be completely captured by the machine-side dust removal equipment and the coke-side dust removal equipment, causing the smoke to escape into the atmosphere and causing environmental pollution.
A tamped coke oven enclosed greenhouse is designed, which is composed of basic structure, support structure, closed stainless steel plate, electric sunroof, rising pipe fireproof board, machine-side and coke-side dust removal pipes, etc., to form a closed system to ensure that the smoke is collected and processed.
Effectively control the emission of coke oven pollutants, achieve no visible smoke and dust escape, improve the waste gas collection rate, and meet environmental protection requirements.
Smart Images
Figure CN223163380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke production equipment, in particular to a tamping coke oven closed shed. Background Art
[0002] At present, tamping coke ovens are basically fully open, that is, completely exposed to the atmosphere. Although effective side dust removal equipment and coke side dust removal equipment have been set up for the coke production process at present, a large amount of soot will still be generated during the coal charging and coke discharging processes. The capture rates of the two dust removal equipment cannot reach 100% in the early and late stages of operation, and a small amount of soot still escapes into the atmosphere. At the same time, there is still a small amount of continuous or intermittent soot escaping from individual parts of the coke oven body, such as the furnace head and the riser pipe of the coke oven. These soot have the characteristics of small single-point soot volume, many occurrence points, continuous or intermittent accidental occurrence and uncertainty, etc., and it is impossible to effectively collect them point by point.
[0003] With the increasing prominence of environmental problems, as one of the most serious pollution sources causing air pollution in the coking industry, tamping coke ovens urgently need to solve the problem of unorganized emission of flue gas during the coal charging and coke discharging processes. To solve this problem, at present, it is required to implement enclosure and sealing of the coke oven body and collect and treat the waste gas. The general requirement is to take effective measures such as airtightness and enclosure on the premise of ensuring safe production, effectively improve the waste gas collection rate, and make no visible smoke and dust escape from the dust generation points and production facilities, no peculiar smell, and no dust accumulation. For this reason, the utility model provides a tamping coke oven closed shed that can prevent soot from escaping into the atmosphere and make no visible soot during the operation of the coke oven. Summary of the Utility Model
[0004] To solve the above technical problems, the utility model provides a tamping coke oven closed shed. The technical solution of the utility model is as follows:
[0005] A tamping coke oven closed shed, which comprises a foundation structure formed by two rows of parallel and spaced foundation piles in the front and back. At the top of the foundation structure, there is a support structure formed by a combination of a number of bolt balls and purlins. Above the support structure, there is a closed stainless steel plate. In the middle of the closed stainless steel plate, there is an unclosed area running through from left to right. On both sides below the unclosed area, there are obliquely distributed shed smoke baffle plates and vertically distributed coke oven side smoke pipe baffle plates. Both the shed smoke baffle plates and the coke oven side smoke pipe baffle plates are fixedly connected to the support structure. On the closed stainless steel plates on both sides before and after the unclosed area, there are a number of through holes, which are located above the carbonization chamber. Each through hole is connected with an electric skylight, and the number of electric skylights is the same as the number of carbonization chambers. Below the support structure, there is an upcomer fireproof plate fixedly connected through a connecting piece, and the upcomer fireproof plate is located above the coke oven upcomer. Below the unclosed area, there are parallelly arranged machine side dust removal pipelines and coke side dust removal pipelines fixedly connected through connecting pieces. The two coke oven side smoke pipe baffle plates on both sides are respectively located at the positions of the machine side dust removal pipeline and the coke side dust removal pipeline. The dust removal ports at the top of each carbonization chamber are communicated with the machine side dust removal pipeline and the coke side dust removal pipeline. The machine side dust removal main pipeline is installed on the left side of the tamping coke oven closed shed, and the coke side dust removal main pipeline is installed on the right side of the tamping coke oven closed shed. Both the machine side dust removal main pipeline and the coke side dust removal main pipeline are located outside the tamping coke oven closed shed. The machine side dust removal pipeline is connected with the machine side dust removal main pipeline, and the coke side dust removal pipeline is connected with the coke side dust removal main pipeline. The machine side dust removal main pipeline and the coke side dust removal main pipeline are respectively connected with the machine side dust removal equipment and the coke side dust removal equipment. Above the unclosed area, there is a rain shield fixedly connected.
[0006] Optionally, the distance between the electric skylight and the shed smoke baffle plate is 2.5 meters.
[0007] Optionally, the tamping coke oven closed shed further comprises a tamping car dust removal pipeline. One end of the tamping car dust removal pipeline is connected with the tamping car, and the other end is connected with the machine side dust removal main pipeline.
[0008] Optionally, the support structure is arched.
[0009] Optionally, on the rear side of the closed stainless steel plate, there are gas collector discharge pipeline openings for passing through the gas collector discharge pipes of the coke oven, and the number of gas collector discharge pipeline openings is the same as the number of gas collector discharge pipes of the coke oven.
[0010] Optionally, on the rear side of the closed stainless steel plate, there are gas pipeline openings for passing through the coke oven gas pipelines and upcomer waste heat recovery openings for passing through the upcomer waste heat pipelines of the coke oven. The number of gas pipeline openings is the same as the number of coke oven gas pipelines, and the number of upcomer waste heat recovery openings is the same as the number of upcomer waste heat pipelines of the coke oven.
[0011] Optionally, the distance between the upcomer fireproof plate and the top of the coke oven upcomer is 4 meters - 4.5 meters.
[0012] Optionally, the total cross-sectional area of the coke oven main gas collecting pipe blow-off pipe is larger than the total cross-sectional area of the gas suction pipe.
[0013] All of the above optional technical solutions can be arbitrarily combined, and the present utility model does not elaborate on the structures after combination one by one.
[0014] By means of the above solution, the beneficial effects of the present utility model are as follows:
[0015] By providing components such as a basic structure, a support structure, a closed stainless steel plate, an electric skylight, a riser pipe fireproof board, a charging side dust removal pipe, a coke side dust removal pipe, a charging side dust removal main pipe, and a coke side dust removal main pipe, a tamping type coke oven closed shed is provided that can prevent soot from escaping into the atmosphere and make the coke oven have no visible soot during operation. The tamping type coke oven closed shed controls the pollutant emissions of the coke oven from the source and effectively controls the unorganized emissions of the coke oven.
[0016] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and implement it according to the content of the specification, the following further details the preferred embodiments of the present utility model in conjunction with the drawings. Description of the Drawings
[0017] Figure 1 is the left view of the present utility model.
[0018] Figure 2 is the right view of the present utility model.
[0019] Figure 3 is the front view of the present utility model.
[0020] Figure 4 is the top view of the present utility model.
[0021] The reference numerals are: 1 - foundation pile, 2 - bolt ball, 3 - purlin, 4 - stainless steel plate, 5.1 - shed smoke baffle, 5.2 - charging and coke side gas pipe smoke baffle, 6 - non-closed area, 7 - electric skylight, 8 - riser pipe fireproof board, 9.1 - charging side dust removal pipe, 9.2 - coke side dust removal pipe, 10 - rain baffle, 11 - charging side dust removal main pipe, 12 - coke side dust removal main pipe, 13 - opening of the main gas collecting pipe blow-off pipe, 14 - opening of the gas pipe of the gas pipe, 15 - opening for riser pipe waste heat recovery. Detailed Description of the Preferred Embodiments
[0022] The following further details the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but do not limit the scope of the present utility model.
[0023] As Figures 1 to 4As shown in the figure, the tamping-type coke oven closed shed provided by the utility model includes a foundation structure formed by two rows of parallel and spaced-apart foundation piles 1 at the front and rear. The top of the foundation structure is fixedly connected with a support structure formed by a number of bolt balls 2 and purlins 3. Above the support structure is fixedly connected with a closed stainless steel plate 4. An unclosed area 6 runs through the middle of the closed stainless steel plate 4 from left to right. On both sides below the unclosed area 6 are provided with obliquely distributed shed smoke baffle plates 5.1 and vertically distributed coke oven side smoke pipe baffle plates 5.2. The shed smoke baffle plates 5.1 and the coke oven side smoke pipe baffle plates 5.2 are both fixedly connected with the support structure. A number of through holes are opened on the closed stainless steel plates 4 on both sides before and after the unclosed area 6. The through holes are located above the carbonization chamber. An electric skylight 7 is connected to each through hole. The number of electric skylights 7 is the same as the number of carbonization chambers. Below the support structure is fixedly connected with a riser pipe fireproof board 8 through a connecting member, and the riser pipe fireproof board 8 is located above the coke oven riser pipe. Below the unclosed area 6 is fixedly connected with a parallelly arranged machine side dust removal pipeline 9.1 and a coke side dust removal pipeline 9.2 through a connecting member. The two coke oven side smoke pipe baffle plates 5.2 on both sides are respectively located at the machine side dust removal pipeline 9.1 and the coke side dust removal pipeline 9.2. The dust removal port at the top of each carbonization chamber is communicated with the machine side dust removal pipeline 9.1 and the coke side dust removal pipeline 9.2. A machine side dust removal main pipe 11 is installed on the left side of the tamping-type coke oven closed shed, and a coke side dust removal main pipe 12 is installed on the right side of the tamping-type coke oven closed shed. The machine side dust removal main pipe 11 and the coke side dust removal main pipe 12 are both located outside the tamping-type coke oven closed shed. The machine side dust removal pipeline 9.1 is connected to the machine side dust removal main pipe 11, and the coke side dust removal pipeline 9.2 is connected to the coke side dust removal main pipe 12. The machine side dust removal main pipe 11 and the coke side dust removal main pipe 12 are respectively connected to the machine side dust removal equipment and the coke side dust removal equipment. Above the unclosed area 6 is fixedly connected with a rain baffle 10.
[0024] Specifically, the foundation pile 1 is a 1m-high cement column. The bolt ball 2 is used as a support and the purlin 3 is used as a framework. Adjacent bolt balls 2 are connected by purlins 3 to form a support structure. The support structure and the closed stainless steel plate 4 can be welded. The closed stainless steel plate 4 is a 900-type single-layer profiled 304# stainless steel plate to improve its corrosion resistance. The unclosed area 6 is used to prevent gas accumulation. The shed smoke baffle plates 5.1 and the coke oven side smoke pipe baffle plates 5.2 can prevent the unorganized emission of flue gas from diffusing to the unclosed area 6 for emission. The coke oven side smoke pipe baffle plates 5.2 are respectively located at the machine side dust removal pipeline 9.1 and the coke side dust removal pipeline 9.2, which can realize that the unorganized emission of flue gas from the machine side, coke side, and raw gas export system diffuses to the smoke extraction and treatment device at the shed smoke baffle plate 5.1 under the action of thermal buoyancy. The electric skylight 7 can be opened under extreme conditions (such as when there is a lot of air leakage in the carbonization chamber due to a malfunction) to prevent the accumulation of soot in the shed. The rain baffle 10 can prevent rainwater from impacting the refractory brick joints on the furnace top, thereby preventing the leakage of the coke oven furnace top.
[0025] When fixedly connecting the riser pipe fireproof board 8, the connecting piece can be first welded to the bolt ball 2 and the purlin 3 above the coke oven riser pipe, and then the riser pipe fireproof board 8 is welded to the connecting piece. The riser pipe fireproof board 8 can prevent damage to the closed shed of the stamping coke oven when the riser pipe cover is opened during furnace cooling.
[0026] When installing the machine-side dust removal pipeline 9.1 and the coke-side dust removal pipeline 9.2, after welding the machine-side dust removal pipeline 9.1 and the coke-side dust removal pipeline 9.2 to the connecting piece, the connecting piece is then welded to the bolt ball 2 and the purlin 3 below the non-enclosed area 6. The flue gas discharged from the dust removal port of the carbonization chamber reaches the machine-side dust removal main pipe 11 and the coke-side dust removal main pipe 12 through the machine-side dust removal pipeline 9.1 and the coke-side dust removal pipeline 9.2, and then goes to the machine-side dust removal equipment and the coke-side dust removal equipment for treatment. By connecting the dust removal ports at the top of each carbonization chamber to the machine-side dust removal pipeline 9.1 and the coke-side dust removal pipeline 9.2, it is ensured that when one of the machine-side dust removal equipment and the coke-side dust removal equipment is shut down during treatment, the soot generated in the carbonization chamber can be treated by the other dust removal equipment, ensuring uninterrupted flue gas dust removal.
[0027] Under the action of the machine-side dust removal equipment and the coke-side dust removal equipment, the area below the non-enclosed area 6 is in a slightly negative pressure state. On the one hand, it can draw the air outside the closed shed of the stamping coke oven into the shed to ensure the air quality in the shed. On the other hand, it can prevent the soot in the shed from escaping, and enable the flue gas to be discharged only through the machine-side dust removal pipeline 9.1 and the coke-side dust removal pipeline 9.2 to the machine-side dust removal equipment and the coke-side dust removal equipment.
[0028] In a specific embodiment, the closed shed of the stamping coke oven further includes a tamping car dust removal pipeline. One end of the tamping car dust removal pipeline is connected to the tamping car, and the other end is connected to the machine-side dust removal main pipe 11. The coal dust generated during the tamping process of the tamping car reaches the machine-side dust removal main pipe 11 through the tamping car dust removal pipeline and then goes to the machine-side dust removal equipment for treatment.
[0029] In a specific embodiment, the distance between the electric skylight 7 and the shed smoke baffle 5.1 is 2.5 meters. The electric skylight 7 is operated by an EPS power supply or a conventional power supply. In case of an emergency, when the EPS power supply supplies power, the electric skylight 7 automatically opens to avoid the accumulation of toxic gases at the highest point.
[0030] In a specific embodiment, the support structure is arched.
[0031] In a specific embodiment, a gas collecting pipe discharge pipe opening 13 for passing the gas collecting pipe discharge pipe of the coke oven is provided at the rear side of the closed stainless steel plate 4. The number of the gas collecting pipe discharge pipe openings 13 is the same as the number of the gas collecting pipe discharge pipes of the coke oven. The gas collecting pipe discharge pipes of the coke oven extend out from the gas collecting pipe discharge pipe openings 13.
[0032] In a specific embodiment, the total cross-sectional area of the coke oven collecting pipe blow-off pipe is larger than the total cross-sectional area of the gas suction pipe, that is, the blow-off capacity of the coke oven collecting pipe blow-off pipe needs to be greater than the gas suction capacity of the gas suction pipe, so as to prevent excessive pressure in the coke oven collecting pipe from causing soot and toxic gases to escape into the greenhouse.
[0033] In a specific embodiment, a gas pipe opening 14 for passing the coke oven gas pipe and a riser waste heat recovery opening 15 for passing the coke oven riser waste heat pipe are respectively provided at the rear side of the closed stainless steel plate 4. The number of the gas pipe openings 14 is the same as the number of the coke oven gas pipes, and the number of the riser waste heat recovery openings 15 is the same as the number of the coke oven riser waste heat pipes. The coke oven gas pipe extends out from the gas pipe opening 14, and the coke oven riser waste heat pipe extends out from the riser waste heat recovery opening 15.
[0034] In a specific embodiment, the distance between the riser fireproof board 8 and the top of the coke oven riser is 4 meters to 4.5 meters.
[0035] To verify the beneficial effects of the present invention, the gas in the greenhouse was monitored after the present invention was used, and the monitoring results are shown in Table 1.
[0036] Table 1
[0037]
[0038] It can be seen from Table 1 that after the present invention is used, the indexes of the flue gas in the greenhouse are far lower than the standard indexes. Therefore, the present invention controls the pollutant emissions of the coke oven from the source, and effectively controls the fugitive emissions of the coke oven.
[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A tamping type coke oven closed shed, characterized in that, The invention comprises a foundation structure formed by two parallel rows of foundation piles (1) arranged at intervals, a support structure formed by a combination of a plurality of bolt balls (2) and purlins (3) fixedly connected to the top of the foundation structure, a closed stainless steel plate (4) fixedly connected above the support structure, an unclosed area (6) running through the middle of the closed stainless steel plate (4) from left to right, and obliquely distributed greenhouse smoke shields (5.1) and vertically distributed machine coke side smoke pipe smoke shields (5.2) are arranged on both sides below the unclosed area (6). The greenhouse smoke shield (5.1) and the machine coke side smoke shield (5.2) are fixedly connected to the supporting structure. A number of through holes are opened on the closed stainless steel plates (4) on the front and rear sides of the non-enclosed area (6). The through holes are located above the carbonization chamber. Each through hole is connected to an electric skylight (7). The number of electric skylights (7) is the same as the number of carbonization chambers. A rising pipe fireproof plate (8) is fixedly connected to the bottom of the supporting structure through a connecting piece, and the rising pipe fireproof plate (8) is located above the coke oven rising pipe. The lower part of the closed area (6) is fixedly connected to the machine side dust removal pipe (9.1) and the coke side dust removal pipe (9.2) arranged in parallel by a connector. The smoke shields (5.2) of the machine coke side smoke pipe on both sides are respectively located at the machine side dust removal pipe (9.1) and the coke side dust removal pipe (9.2). The dust removal port at the top of each carbonization chamber is connected to the machine side dust removal pipe (9.1) and the coke side dust removal pipe (9.2). The machine side dust removal main pipe (11) is installed on the left side of the tamping type coke oven closed shed. A coke side dust removal main pipe (12) is installed on the right side of the greenhouse. The machine side dust removal main pipe (11) and the coke side dust removal main pipe (12) are both located outside the closed greenhouse of the ramming type coke oven. The machine side dust removal pipe (9.1) is connected to the machine side dust removal main pipe (11), and the coke side dust removal pipe (9.2) is connected to the coke side dust removal main pipe (12). The machine side dust removal main pipe (11) and the coke side dust removal main pipe (12) are connected to the machine side dust removal equipment and the coke side dust removal equipment respectively. A rain shield (10) is fixedly connected above the unenclosed area (6).
2. The closed shed for a tamping coke oven according to claim 1, wherein, The distance between the electric skylight (7) and the greenhouse smoke shield (5.1) is 2.5 meters.
3. The closed shed of the tamping coke oven according to claim 1, wherein The supporting structure is arched.
4. The tamping coke oven closed shed according to claim 1, characterized in that, The rear side of the closed stainless steel plate (4) is provided with a gas collecting pipe discharge pipe opening (13) for passing the coke oven gas collecting pipe discharge pipe, and the number of the gas collecting pipe discharge pipe openings (13) is the same as the number of the coke oven gas collecting pipe discharge pipes.
5. The tamping coke oven closed shed according to claim 1, characterized in that, The rear side of the closed stainless steel plate (4) is provided with a gas pipeline opening (14) for passing the coke oven gas pipeline and a riser waste heat recovery opening (15) for passing the coke oven riser waste heat pipeline. The number of the gas pipeline openings (14) is the same as the number of the coke oven gas pipelines, and the number of the riser waste heat recovery openings (15) is the same as the number of the coke oven riser waste heat pipelines.
6. The closed shed for a tamping coke oven according to claim 1, characterized in that, The distance between the riser fireproof plate (8) and the top of the coke oven riser is 4 meters to 4.5 meters.
7. The tamping coke oven closed shed according to claim 4, characterized in that, The total cross-sectional area of the coke oven gas collecting pipe and the vent pipe is larger than the total cross-sectional area of the coal gas suction pipe.