CN116857558A - A blast furnace gas efficiency improvement system - Google Patents
A blast furnace gas efficiency improvement system Download PDFInfo
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- CN116857558A CN116857558A CN202310724228.4A CN202310724228A CN116857558A CN 116857558 A CN116857558 A CN 116857558A CN 202310724228 A CN202310724228 A CN 202310724228A CN 116857558 A CN116857558 A CN 116857558A
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- 230000006872 improvement Effects 0.000 title claims description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000009628 steelmaking Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/002—Evacuating and treating of exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/065—Arrangements for producing propulsion of gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
技术领域Technical field
本发明属于煤气输送及存储技术领域，具体涉及一种高炉煤气效能提升系统。The invention belongs to the technical field of gas transportation and storage, and specifically relates to a blast furnace gas efficiency improvement system.
背景技术Background technique
高炉煤气是炼铁过程中产生的副产品，主要成分为：CO、CO2、N2、H2、CH4等，其中可燃成分CO含量约占25％左右，H2、CH4的含量很少，CO2、N2的含量分别占15％、55％，热值仅为3500kJ/m3左右。Blast furnace gas is a by-product produced during the iron-making process. Its main components are: CO, CO2, N2, H2, CH4, etc., of which the combustible component CO content accounts for about 25%, the content of H2 and CH4 is very small, and the content of CO2 and N2 Accounting for 15% and 55% respectively, the calorific value is only about 3500kJ/m3.
现有的冶金企业高炉煤气整体短缺，造成高炉煤气管网压力低；煤气柜无法并网运行，不能调节高炉煤气管道的压力，导致煤气管道存在安全隐患，遇到高炉截煤气时无法为管网补充煤气，影响煤气用户的正常生产及创效。There is an overall shortage of blast furnace gas in existing metallurgical enterprises, resulting in low pressure in the blast furnace gas pipeline network; the gas cabinet cannot be connected to the grid and cannot adjust the pressure of the blast furnace gas pipeline, resulting in potential safety hazards in the gas pipeline. When encountering blast furnace gas interception, the pipeline network cannot be maintained. Replenishing gas affects the normal production and efficiency of gas users.
发明内容Contents of the invention
本发明的目的是提供一种高炉煤气效能提升系统，以解决煤气柜不能增加煤气储量的问题。The purpose of the present invention is to provide a blast furnace gas efficiency improvement system to solve the problem that the gas cabinet cannot increase the gas storage.
本发明采用以下技术方案：一种高炉煤气效能提升系统，包括煤气柜、高炉和煤气柜加压机；The present invention adopts the following technical solutions: a blast furnace gas efficiency improvement system, including a gas cabinet, a blast furnace and a gas cabinet pressurizer;
高炉，其煤气出口依次通过第一管道、煤气管道与发电厂的燃气管道相连通，用于将其产生的煤气输送给发电厂进行发电，所述第一管道与煤气管道的连通处设置有第二蝶阀，所述第一管道上设置有第一蝶阀；The gas outlet of the blast furnace is connected to the gas pipeline of the power plant through the first pipeline and the gas pipeline in sequence, and is used to transport the gas generated by it to the power plant for power generation. The connection between the first pipeline and the gas pipeline is provided with a third Two butterfly valves, a first butterfly valve is provided on the first pipeline;
煤气柜，其进出口通过第二管道与所述煤气管道相连通，所述煤气管道上设置有调节阀；A gas cabinet, the inlet and outlet of which are connected to the gas pipeline through a second pipe, and the gas pipeline is provided with a regulating valve;
煤气柜加压机，其入口通过进气管与第一管道相连通，其出口通过出气管与煤气管道相连通，所述进气管上设置有第三蝶阀，所述出气管上设置有第四蝶阀，所述煤气柜加压机用以对煤气进行增压，使煤气进入煤气柜，增大煤气柜的煤气储量。The gas cabinet pressurizer has an inlet connected to the first pipe through an air inlet pipe, and an outlet connected to the gas pipe through an air outlet pipe. The air inlet pipe is provided with a third butterfly valve, and the air outlet pipe is provided with a fourth butterfly valve. , the gas cabinet pressurizer is used to pressurize the gas so that the gas enters the gas cabinet and increases the gas reserve of the gas cabinet.
进一步地，所述高炉铁水出口通过铁水沟与用于炼钢的转炉相连通。Further, the blast furnace molten iron outlet is connected to the converter used for steelmaking through a molten iron ditch.
进一步地，所述煤气柜通过自用燃气管道与转炉相连通、且自用燃气管道上设有控制阀。Further, the gas cabinet is connected to the converter through a self-use gas pipeline, and a control valve is provided on the self-use gas pipeline.
进一步地，在谷电时段，通过打开第一蝶阀、第三蝶阀、第四蝶阀，关闭第二蝶阀，调节调节阀使得高炉产生的煤气依次顺着第一管道、进气管、出气管、煤气管道输送至煤气柜进行储存，使得煤气柜上升，煤气柜的煤气储量增加。Further, during the off-peak period, by opening the first butterfly valve, the third butterfly valve, and the fourth butterfly valve, closing the second butterfly valve, and adjusting the regulating valve so that the gas generated by the blast furnace flows along the first pipe, the gas inlet pipe, the gas outlet pipe, and the gas pipe in sequence. It is transported to the gas cabinet for storage, causing the gas cabinet to rise and the gas storage of the gas cabinet to increase.
更进一步地，在峰电时段，通过关闭第三蝶阀、第四蝶阀，打开第一蝶阀、第二蝶阀，调节调节阀使得高炉产生的煤气依次顺着第一管道、煤气管道输送给发电厂，以及煤气柜存储的煤气依次通过第二管道、煤气管道输送给发电厂，使得煤气柜下降，煤气柜的煤气储量减少，平衡煤气管道与第一管道内的压力。Furthermore, during the peak power period, by closing the third butterfly valve and the fourth butterfly valve, opening the first butterfly valve and the second butterfly valve, and adjusting the regulating valve, the gas generated by the blast furnace is transported to the power plant along the first pipeline and the gas pipeline in sequence. And the gas stored in the gas holder is transported to the power plant through the second pipeline and the gas pipeline in sequence, so that the gas ark is lowered, the gas storage of the gas holder is reduced, and the pressure in the gas pipeline and the first pipeline is balanced.
本发明的有益效果是：通过设置的煤气柜加压机使得高炉产生的煤气依次顺着第一管道与进气管经过煤气柜加压机进行加压，煤气柜加压机增大了出气管与煤气管道内的压力，在压力的作用下使得煤气进入煤气柜，煤气柜上升，煤气柜的煤气储量增加，在峰电时段，发电厂对煤气需求增大，通过控制调节阀使得高炉产生的煤气依次顺着第一管道、煤气管道输送给发电厂，同时煤气柜存储的煤气输送到发电厂，及时为发电厂提供了煤气，避免了高炉的煤气管网压力过低的情况；可方便的解决煤气柜不能增加煤气储量的问题，操作简单，适于推广。The beneficial effects of the present invention are: through the gas cabinet pressurizer provided, the gas generated by the blast furnace is pressurized sequentially along the first pipe and the air inlet pipe through the gas cabinet pressurizer. The gas cabinet pressurizer increases the distance between the gas outlet pipe and the air inlet pipe. The pressure in the gas pipeline causes the gas to enter the gas holder. The gas holder rises and the gas reserve of the gas holder increases. During peak power periods, the power plant's demand for gas increases. By controlling the regulating valve, the gas generated by the blast furnace is increased. It is transported to the power plant along the first pipeline and the gas pipeline in sequence. At the same time, the gas stored in the gas cabinet is transported to the power plant, providing gas to the power plant in time, avoiding the situation that the pressure of the gas pipe network of the blast furnace is too low; it can be easily solved There is a problem that the gas cabinet cannot increase the gas reserve. The operation is simple and suitable for promotion.
附图说明Description of the drawings
图1为本发明的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the present invention.
其中：1.第一蝶阀；2.高炉；3.调节阀；4.第二蝶阀；5.第三蝶阀；6.第四蝶阀；7.煤气柜加压机；8.进气管；9.出气管；10.煤气柜；11.煤气管道；12.第一管道；13.第二管道；14.自用燃气管道；15.转炉。Among them: 1. The first butterfly valve; 2. Blast furnace; 3. Regulating valve; 4. The second butterfly valve; 5. The third butterfly valve; 6. The fourth butterfly valve; 7. Gas cabinet pressurizer; 8. Air inlet pipe; 9. Gas outlet pipe; 10. Gas cabinet; 11. Gas pipeline; 12. First pipeline; 13. Second pipeline; 14. Self-use gas pipeline; 15. Converter.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.
在本发明的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. Specific orientations of construction and operation are therefore not to be construed as limitations of the invention.
本发明提供了一种高炉煤气效能提升系统，参考图1，包括煤气柜10、高炉2和煤气柜加压机7；The present invention provides a blast furnace gas efficiency improvement system. Referring to Figure 1, it includes a gas cabinet 10, a blast furnace 2 and a gas cabinet pressurizer 7;
高炉2，其煤气出口依次通过第一管道12、煤气管道11与发电厂的燃气管道相连通，用于将其产生的煤气输送给发电厂进行发电，第一管道12与煤气管道11的连通处设置有第二蝶阀4，第一管道12上设置有第一蝶阀1，第一蝶阀1用来调节第一管道12中煤气的流量；The gas outlet of the blast furnace 2 is connected to the gas pipeline of the power plant through the first pipeline 12 and the gas pipeline 11 in sequence, and is used to transport the gas generated by it to the power plant for power generation. The connection between the first pipeline 12 and the gas pipeline 11 A second butterfly valve 4 is provided, and a first butterfly valve 1 is provided on the first pipe 12. The first butterfly valve 1 is used to regulate the flow of gas in the first pipe 12;
煤气柜10，其进出口通过第二管道13与煤气管道11相连通，煤气管道11上设置有调节阀3，煤气柜10用来将谷电时高炉2产生的煤气进行储存；The gas cabinet 10 has its inlet and outlet connected to the gas pipe 11 through the second pipe 13. The gas pipe 11 is provided with a regulating valve 3. The gas cabinet 10 is used to store the gas generated by the blast furnace 2 during off-peak periods;
煤气柜加压机7，其入口通过进气管8与第一管道12相连通，其出口通过出气管9与煤气管道11相连通，进气管8上设置有第三蝶阀5，出气管9上设置有第四蝶阀6，煤气柜加压机7用以对煤气进行增压，使煤气进入煤气柜10，增大煤气柜10的煤气储量。The gas cabinet pressurizer 7 has its inlet connected to the first pipe 12 through the air inlet pipe 8, and its outlet connected to the gas pipe 11 through the air outlet pipe 9. The air inlet pipe 8 is provided with a third butterfly valve 5, and the air outlet pipe 9 is provided with a third butterfly valve 5. There is a fourth butterfly valve 6, and the gas cabinet pressurizer 7 is used to pressurize the gas so that the gas enters the gas cabinet 10 and increases the gas storage of the gas cabinet 10.
高炉2铁水出口通过铁水沟与用于炼钢的转炉15相连通，高炉2生产的铁水进入转炉15进行炼钢。The molten iron outlet of the blast furnace 2 is connected to the converter 15 for steelmaking through the molten iron ditch, and the molten iron produced by the blast furnace 2 enters the converter 15 for steelmaking.
煤气柜10通过自用燃气管道14与转炉15相连通、且自用燃气管道14上设有控制阀，煤气柜10内存储的部分煤气通过自用燃气管道14用来在转炉15炼钢过程中进行助燃，减少外购燃气量，提高煤气的使用率。The gas cabinet 10 is connected to the converter 15 through the self-use gas pipe 14, and the self-use gas pipe 14 is provided with a control valve. Part of the gas stored in the gas cabinet 10 is used to support combustion in the steelmaking process of the converter 15 through the self-use gas pipe 14. Reduce the amount of purchased gas and increase gas usage.
一种高炉煤气效能提升系统的使用方法，为：A method of using a blast furnace gas efficiency improvement system is:
在谷电时段，打开第一蝶阀1、第三蝶阀5、第四蝶阀6，关闭第二蝶阀4，调节调节阀3，使得高炉2产生的煤气顺着第一管道12与进气管8经过煤气柜加压机7进行加压，气柜加压机7增大出气管9与煤气管道11内的压力，在压力的作用下使得煤气进入煤气柜10，煤气柜10上升，煤气柜10的煤气储量增加。During the off-peak power period, open the first butterfly valve 1, the third butterfly valve 5, and the fourth butterfly valve 6, close the second butterfly valve 4, and adjust the regulating valve 3 so that the gas generated by the blast furnace 2 passes through the gas along the first pipe 12 and the air inlet pipe 8. The gas cabinet pressurizer 7 performs pressurization. The gas cabinet pressurizer 7 increases the pressure in the gas outlet pipe 9 and the gas pipe 11. Under the action of the pressure, the gas enters the gas cabinet 10. The gas cabinet 10 rises, and the gas in the gas cabinet 10 rises. Reserves increase.
在峰电时段，关闭第三蝶阀5、第四蝶阀6，打开第一蝶阀1、第二蝶阀4，调节调节阀3使得高炉2产生的煤气依次顺着第一管道12、煤气管道11输送给发电厂，以及煤气柜10存储的煤气依次通过第二管道、煤气管道11输送给发电厂，使得煤气柜10下降，煤气柜10的煤气储量减少，平衡煤气管道11与第一管道12内的压力，并且煤气进入发电厂也实现了创收。During the peak power period, the third butterfly valve 5 and the fourth butterfly valve 6 are closed, the first butterfly valve 1 and the second butterfly valve 4 are opened, and the regulating valve 3 is adjusted so that the gas generated by the blast furnace 2 is transported to the gas pipeline along the first pipeline 12 and the gas pipeline 11 in sequence. The power plant and the gas stored in the gas cabinet 10 are sequentially transported to the power plant through the second pipe and the gas pipe 11, so that the gas cabinet 10 is lowered, the gas storage of the gas cabinet 10 is reduced, and the pressure in the gas pipe 11 and the first pipe 12 is balanced. , and the gas entering the power plant also generates income.
本发明还提供了一种高炉煤气效能提升方法，包括：The invention also provides a method for improving blast furnace gas efficiency, which includes:
在谷电时段，打开第一蝶阀1、第三蝶阀5、第四蝶阀6，关闭第二蝶阀4，调节调节阀3，使得高炉2产生的煤气顺着第一管道12与进气管8经过煤气柜加压机7进行加压，气柜加压机7增大出气管9与煤气管道11内的压力，在压力的作用下使得煤气进入煤气柜10，煤气柜10上升，煤气柜10的煤气储量增加。During the off-peak power period, open the first butterfly valve 1, the third butterfly valve 5, and the fourth butterfly valve 6, close the second butterfly valve 4, and adjust the regulating valve 3 so that the gas generated by the blast furnace 2 passes through the gas along the first pipe 12 and the air inlet pipe 8. The gas cabinet pressurizer 7 performs pressurization. The gas cabinet pressurizer 7 increases the pressure in the gas outlet pipe 9 and the gas pipe 11. Under the action of the pressure, the gas enters the gas cabinet 10. The gas cabinet 10 rises, and the gas in the gas cabinet 10 rises. Reserves increase.
在峰电时段，关闭第三蝶阀5、第四蝶阀6，打开第一蝶阀1、第二蝶阀4，调节调节阀3使得高炉2产生的煤气依次顺着第一管道12、煤气管道11输送给发电厂，以及煤气柜10存储的煤气依次通过第二管道、煤气管道11输送给发电厂，使得煤气柜10下降，煤气柜10的煤气储量减少，平衡煤气管道11与第一管道12内的压力，并且煤气进入发电厂也实现了创收。During the peak power period, the third butterfly valve 5 and the fourth butterfly valve 6 are closed, the first butterfly valve 1 and the second butterfly valve 4 are opened, and the regulating valve 3 is adjusted so that the gas generated by the blast furnace 2 is transported to the gas pipeline along the first pipeline 12 and the gas pipeline 11 in sequence. The power plant and the gas stored in the gas cabinet 10 are sequentially transported to the power plant through the second pipe and the gas pipe 11, so that the gas cabinet 10 is lowered, the gas storage of the gas cabinet 10 is reduced, and the pressure in the gas pipe 11 and the first pipe 12 is balanced. , and the gas entering the power plant also generates income.
本发明通过设置的煤气柜加压机7使得高炉2产生的煤气依次顺着第一管道12与进气管8经过煤气柜加压机7进行加压，煤气柜加压机7增大了出气管9与煤气管道11内的压力，在压力的作用下使得煤气进入煤气柜10，煤气柜10上升，煤气柜10的煤气储量增加，在峰电时段，发电厂对煤气需求增大时，通过控制调节阀3使得高炉2产生的煤气依次顺着第一管道12、煤气管道11输送给发电厂，同时煤气柜10存储的煤气输送到发电厂，及时为发电厂提供了煤气，避免了高炉2的煤气管网压力过低的情况；可方便的解决煤气柜不能增加煤气储量的问题，操作简单，适于推广。In the present invention, the gas produced by the blast furnace 2 is pressurized through the gas cabinet pressurizer 7 along the first pipe 12 and the air inlet pipe 8 in sequence through the gas cabinet pressurizer 7. The gas cabinet pressurizer 7 enlarges the gas outlet pipe. 9 and the pressure in the gas pipeline 11, under the action of pressure, the gas enters the gas holder 10, the gas holder 10 rises, and the gas reserve of the gas holder 10 increases. During the peak power period, when the power plant's demand for gas increases, through control The regulating valve 3 allows the gas generated by the blast furnace 2 to be transported to the power plant along the first pipeline 12 and the gas pipeline 11 in sequence. At the same time, the gas stored in the gas cabinet 10 is transported to the power plant, providing gas to the power plant in a timely manner and avoiding the failure of the blast furnace 2. The gas pipe network pressure is too low; it can conveniently solve the problem of the gas cabinet being unable to increase gas reserves. It is simple to operate and suitable for promotion.
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310724228.4A CN116857558A (en) | 2023-06-19 | 2023-06-19 | A blast furnace gas efficiency improvement system |
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| CN104089182A (en) * | 2014-06-19 | 2014-10-08 | 马钢(集团)控股有限公司 | Conveying system for blast furnace coal gas pipe network and operation method thereof |
| CN204240050U (en) * | 2014-11-14 | 2015-04-01 | 武钢集团昆明钢铁股份有限公司 | A kind of blast furnace gas low energy consumption direct-supplying device |
| EP2886666A1 (en) * | 2013-12-20 | 2015-06-24 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for operating a top gas recycling blast furnace installation |
| KR101769326B1 (en) * | 2016-09-08 | 2017-08-18 | 주식회사 포스코 | Apparatus and method for dust collecting of blast furnace gas |
| CN115388413A (en) * | 2022-06-08 | 2022-11-25 | 武汉科技大学 | Direct-fired blast furnace gas diffusion ignition device, control system and method |
| CN220397284U (en) * | 2023-06-19 | 2024-01-26 | 陕西龙门钢铁有限责任公司 | Blast furnace gas efficiency improving system |
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| EP2886666A1 (en) * | 2013-12-20 | 2015-06-24 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for operating a top gas recycling blast furnace installation |
| CN104089182A (en) * | 2014-06-19 | 2014-10-08 | 马钢(集团)控股有限公司 | Conveying system for blast furnace coal gas pipe network and operation method thereof |
| CN204240050U (en) * | 2014-11-14 | 2015-04-01 | 武钢集团昆明钢铁股份有限公司 | A kind of blast furnace gas low energy consumption direct-supplying device |
| KR101769326B1 (en) * | 2016-09-08 | 2017-08-18 | 주식회사 포스코 | Apparatus and method for dust collecting of blast furnace gas |
| CN115388413A (en) * | 2022-06-08 | 2022-11-25 | 武汉科技大学 | Direct-fired blast furnace gas diffusion ignition device, control system and method |
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