CN220397284U - Blast furnace gas efficiency improving system - Google Patents
Blast furnace gas efficiency improving system Download PDFInfo
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- CN220397284U CN220397284U CN202321558151.XU CN202321558151U CN220397284U CN 220397284 U CN220397284 U CN 220397284U CN 202321558151 U CN202321558151 U CN 202321558151U CN 220397284 U CN220397284 U CN 220397284U
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- gas
- pipeline
- blast furnace
- power plant
- butterfly valve
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 238000009628 steelmaking Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a blast furnace gas efficiency improving system, which belongs to the technical field of gas conveying and storing, and comprises a gas holder, a blast furnace and a gas holder pressurizing machine, wherein the gas holder pressurizing machine is arranged to enable gas generated by the blast furnace to sequentially pass through the gas holder pressurizing machine along a first pipeline and an air inlet pipe for pressurizing, the gas holder pressurizing machine increases the pressure in an air outlet pipe and a gas pipeline, the gas enters the gas holder under the action of the pressure, the gas holder rises, the gas storage capacity of the gas holder is increased, the gas demand of a power plant is increased in a peak electricity period, the gas generated by the blast furnace is sequentially conveyed to the power plant along the first pipeline and the gas pipeline through a control regulating valve, and meanwhile, the gas stored by the gas holder is conveyed to the power plant, so that the gas is provided for the power plant in time, and the condition that the pressure of a gas pipe network of the blast furnace is too low is avoided; the problem that the gas tank can not increase the gas reserves can be conveniently solved, the operation is simple, and the method is suitable for popularization.
Description
Technical Field
The utility model belongs to the technical field of gas conveying and storage, and particularly relates to a blast furnace gas efficiency improving system.
Background
Blast furnace gas is a byproduct generated in the iron making process, and comprises the following main components: CO, CO2, N2, H2, CH4 and the like, wherein the content of the combustible component CO is about 25%, the content of H2 and CH4 is very small, the content of CO2 and N2 respectively accounts for 15% and 55%, and the heat value is only about 3500kJ/m 3.
The whole shortage of blast furnace gas in the existing metallurgical enterprises causes low pressure of a blast furnace gas pipe network; the gas tank cannot operate in a grid-connected mode, the pressure of the blast furnace gas pipeline cannot be adjusted, potential safety hazards exist in the gas pipeline, and when the blast furnace gas is cut off, the gas cannot be supplemented for a pipe network, so that the normal production and the creation effect of a gas user are affected.
Disclosure of Invention
The utility model aims to provide a blast furnace gas efficiency improving system so as to solve the problem that a gas tank cannot increase gas reserves.
The utility model adopts the following technical scheme: a blast furnace gas efficiency improving system comprises a gas tank, a blast furnace and a gas tank pressurizing machine;
the gas outlet of the blast furnace is communicated with a gas pipeline of the power plant through a first pipeline and a gas pipeline in sequence and is used for conveying gas generated by the blast furnace to the power plant for power generation, a second butterfly valve is arranged at the communication position of the first pipeline and the gas pipeline, and a first butterfly valve is arranged on the first pipeline;
the inlet and the outlet of the gas cabinet are communicated with the gas pipeline through a second pipeline, and the gas pipeline is provided with a regulating valve;
the inlet of the gas tank pressurizing machine is communicated with the first pipeline through the gas inlet pipe, the outlet of the gas tank pressurizing machine is communicated with the gas pipeline through the gas outlet pipe, a third butterfly valve is arranged on the gas inlet pipe, a fourth butterfly valve is arranged on the gas outlet pipe, and the gas tank pressurizing machine is used for pressurizing gas to enable the gas to enter the gas tank and increase gas reserves of the gas tank.
Further, the blast furnace molten iron outlet is communicated with a converter for steelmaking through a molten iron runner.
Further, the gas tank is communicated with the converter through a self-used gas pipeline, and a control valve is arranged on the self-used gas pipeline.
Further, in the valley period, the first butterfly valve, the third butterfly valve and the fourth butterfly valve are opened, the second butterfly valve is closed, and the regulating valve is regulated to enable gas generated by the blast furnace to be sequentially conveyed to the gas tank for storage along the first pipeline, the gas inlet pipe, the gas outlet pipe and the gas pipeline, so that the gas tank ascends, and the gas storage capacity of the gas tank is increased.
Further, in the peak electricity period, the third butterfly valve and the fourth butterfly valve are closed, the first butterfly valve and the second butterfly valve are opened, the regulating valve is regulated to enable gas generated by the blast furnace to be sequentially conveyed to the power plant along the first pipeline and the gas pipeline, and the gas stored in the gas tank is sequentially conveyed to the power plant through the second pipeline and the gas pipeline, so that the gas tank descends, the gas reserve of the gas tank is reduced, and the pressure in the gas pipeline and the pressure in the first pipeline are balanced.
The beneficial effects of the utility model are as follows: the gas generated by the blast furnace is sequentially pressurized along the first pipeline and the gas inlet pipe through the gas cabinet pressurizing machine, the gas cabinet pressurizing machine increases the pressure in the gas outlet pipe and the gas pipeline, the gas enters the gas cabinet under the action of the pressure, the gas cabinet rises, the gas reserves of the gas cabinet are increased, the gas demand of the power plant is increased in the peak electricity period, the gas generated by the blast furnace is sequentially conveyed to the power plant along the first pipeline and the gas pipeline through the control regulating valve, meanwhile, the gas stored in the gas cabinet is conveyed to the power plant, the gas is provided for the power plant in time, and the condition that the pressure of a gas pipe network of the blast furnace is too low is avoided; the problem that the gas tank can not increase the gas reserves can be conveniently solved, the operation is simple, and the method is suitable for popularization.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Wherein: 1. a first butterfly valve; 2. a blast furnace; 3. a regulating valve; 4. a second butterfly valve; 5. a third butterfly valve; 6. a fourth butterfly valve; 7. pressurizing a gas tank; 8. an air inlet pipe; 9. an air outlet pipe; 10. a gas cabinet; 11. a gas pipe; 12. a first pipe; 13. a second pipe; 14. a self-service gas pipeline; 15. a converter.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The utility model provides a blast furnace gas efficiency improving system, referring to fig. 1, comprising a gas tank 10, a blast furnace 2 and a gas tank pressurizing machine 7;
the gas outlet of the blast furnace 2 is communicated with a gas pipeline of a power plant through a first pipeline 12 and a gas pipeline 11 in sequence, and is used for conveying gas generated by the blast furnace to the power plant for power generation, a second butterfly valve 4 is arranged at the communication position of the first pipeline 12 and the gas pipeline 11, a first butterfly valve 1 is arranged on the first pipeline 12, and the first butterfly valve 1 is used for regulating the flow of the gas in the first pipeline 12;
the inlet and outlet of the gas cabinet 10 are communicated with the gas pipeline 11 through a second pipeline 13, the gas pipeline 11 is provided with a regulating valve 3, and the gas cabinet 10 is used for storing the gas generated by the blast furnace 2 during the valley electricity;
the inlet of the gas tank pressurizing machine 7 is communicated with the first pipeline 12 through the gas inlet pipe 8, the outlet of the gas tank pressurizing machine is communicated with the gas pipeline 11 through the gas outlet pipe 9, the gas inlet pipe 8 is provided with the third butterfly valve 5, the gas outlet pipe 9 is provided with the fourth butterfly valve 6, and the gas tank pressurizing machine 7 is used for pressurizing gas so that the gas enters the gas tank 10 and the gas storage capacity of the gas tank 10 is increased.
The molten iron outlet of the blast furnace 2 is communicated with a converter 15 for steelmaking through a molten iron runner, and molten iron produced by the blast furnace 2 enters the converter 15 for steelmaking.
The gas tank 10 is communicated with the converter 15 through the self-use gas pipeline 14, a control valve is arranged on the self-use gas pipeline 14, part of gas stored in the gas tank 10 is used for supporting combustion in the steelmaking process of the converter 15 through the self-use gas pipeline 14, the external purchased gas quantity is reduced, and the utilization rate of the gas is improved.
The application method of the blast furnace gas efficiency improving system comprises the following steps:
in the valley period, the first butterfly valve 1, the third butterfly valve 5 and the fourth butterfly valve 6 are opened, the second butterfly valve 4 is closed, and the regulating valve 3 is regulated, so that the gas generated by the blast furnace 2 is pressurized along the first pipeline 12 and the gas inlet pipe 8 through the gas cabinet pressurizing machine 7, the gas cabinet pressurizing machine 7 increases the pressure in the gas outlet pipe 9 and the gas pipeline 11, the gas enters the gas cabinet 10 under the action of the pressure, the gas cabinet 10 rises, and the gas reserve of the gas cabinet 10 increases.
In the peak electricity 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, the regulating valve 3 is regulated so that the gas generated by the blast furnace 2 is sequentially conveyed to the power plant along the first pipeline 12 and the gas pipeline 11, and the gas stored in the gas tank 10 is sequentially conveyed to the power plant through the second pipeline and the gas pipeline 11, so that the gas tank 10 descends, the gas storage of the gas tank 10 is reduced, the pressure in the gas pipeline 11 and the pressure in the first pipeline 12 are balanced, and the gas enters the power plant to realize the creation of the income.
The utility model also provides a blast furnace gas efficiency improving method, which comprises the following steps:
in the valley period, the first butterfly valve 1, the third butterfly valve 5 and the fourth butterfly valve 6 are opened, the second butterfly valve 4 is closed, and the regulating valve 3 is regulated, so that the gas generated by the blast furnace 2 is pressurized along the first pipeline 12 and the gas inlet pipe 8 through the gas cabinet pressurizing machine 7, the gas cabinet pressurizing machine 7 increases the pressure in the gas outlet pipe 9 and the gas pipeline 11, the gas enters the gas cabinet 10 under the action of the pressure, the gas cabinet 10 rises, and the gas reserve of the gas cabinet 10 increases.
In the peak electricity 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, the regulating valve 3 is regulated so that the gas generated by the blast furnace 2 is sequentially conveyed to the power plant along the first pipeline 12 and the gas pipeline 11, and the gas stored in the gas tank 10 is sequentially conveyed to the power plant through the second pipeline and the gas pipeline 11, so that the gas tank 10 descends, the gas storage of the gas tank 10 is reduced, the pressure in the gas pipeline 11 and the pressure in the first pipeline 12 are balanced, and the gas enters the power plant to realize the creation of the income.
According to the utility model, the gas generated by the blast furnace 2 is sequentially pressurized along the first pipeline 12 and the gas inlet pipe 8 through the gas cabinet pressurizing machine 7, the gas cabinet pressurizing machine 7 increases the pressure in the gas outlet pipe 9 and the gas pipeline 11, the gas enters the gas cabinet 10 under the action of the pressure, the gas cabinet 10 rises, the gas reserves of the gas cabinet 10 are increased, and in the peak electricity period, when the gas demand of the power plant is increased, the gas generated by the blast furnace 2 is sequentially conveyed to the power plant along the first pipeline 12 and the gas pipeline 11 through controlling the regulating valve 3, and meanwhile, the gas stored in the gas cabinet 10 is conveyed to the power plant, so that the gas is provided for the power plant in time, and the condition of excessively low pressure of a gas pipe network of the blast furnace 2 is avoided; the problem that the gas tank can not increase the gas reserves can be conveniently solved, the operation is simple, and the method is suitable for popularization.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (3)
1. The blast furnace gas efficiency improving system is characterized by comprising a gas tank (10), a blast furnace (2) and a gas tank pressurizing machine (7);
the blast furnace (2) is characterized in that a gas outlet of the blast furnace is communicated with a gas pipeline of a power plant through a first pipeline (12) and a gas pipeline (11) in sequence and is used for conveying gas generated by the blast furnace to the power plant for power generation, a second butterfly valve (4) is arranged at the communication position of the first pipeline (12) and the gas pipeline (11), and a first butterfly valve (1) is arranged on the first pipeline (12);
the inlet and outlet of the gas cabinet (10) are communicated with the gas pipeline (11) through a second pipeline (13), and the gas pipeline (11) is provided with a regulating valve (3);
the gas tank pressurizing machine (7) is characterized in that an inlet of the gas tank pressurizing machine is communicated with the first pipeline (12) through the gas inlet pipe (8), an outlet of the gas tank pressurizing machine is communicated with the gas pipeline (11) through the gas outlet pipe (9), a third butterfly valve (5) is arranged on the gas inlet pipe (8), a fourth butterfly valve (6) is arranged on the gas outlet pipe (9), and the gas tank pressurizing machine (7) is used for pressurizing gas to enable the gas to enter the gas tank (10) and increase gas reserves of the gas tank (10).
2. A blast furnace gas efficiency enhancing system according to claim 1, wherein the molten iron outlet of the blast furnace (2) is in communication with a converter (15) for steelmaking through a molten iron runner.
3. A blast furnace gas efficiency enhancement system according to claim 1, wherein said gas tank (10) is in communication with the converter (15) via a utility gas line (14), and wherein a control valve is provided on the utility gas line (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321558151.XU CN220397284U (en) | 2023-06-19 | 2023-06-19 | Blast furnace gas efficiency improving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321558151.XU CN220397284U (en) | 2023-06-19 | 2023-06-19 | Blast furnace gas efficiency improving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220397284U true CN220397284U (en) | 2024-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321558151.XU Active CN220397284U (en) | 2023-06-19 | 2023-06-19 | Blast furnace gas efficiency improving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220397284U (en) |
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2023
- 2023-06-19 CN CN202321558151.XU patent/CN220397284U/en active Active
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