CN212476809U - Comprehensive utilization device for melting and separating furnace gas - Google Patents
Comprehensive utilization device for melting and separating furnace gas Download PDFInfo
- Publication number
- CN212476809U CN212476809U CN202021220756.4U CN202021220756U CN212476809U CN 212476809 U CN212476809 U CN 212476809U CN 202021220756 U CN202021220756 U CN 202021220756U CN 212476809 U CN212476809 U CN 212476809U
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- gas
- melting
- pipe
- furnace
- separating
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- 238000002844 melting Methods 0.000 title claims abstract description 35
- 230000008018 melting Effects 0.000 title claims abstract description 34
- 239000003034 coal gas Substances 0.000 claims abstract description 20
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 83
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 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
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Manufacture Of Iron (AREA)
Abstract
The utility model is suitable for a coal gas comprehensive utilization technical field provides a melting and separating coal gas comprehensive utilization device, including the energy-conserving subassembly that is used for the energy saving, the energy-conserving subassembly includes the melting and separating stove, the upper surface of melting and separating stove is provided with the gas house steward, one end of gas house steward is fixed to be communicated with the diffusion pipe, be provided with first gas piping on the lateral wall of diffusion pipe, the first gas piping is kept away from with the one end intercommunication that the diffusion pipe is connected has the second gas piping; by arranging the energy-saving assembly, high-temperature coal gas generated by the melting and separating furnace flows into the coal gas branch pipe through the coal gas main pipe and the second coal gas pipeline; at the moment, the gas and the air are compressed by the jet orifice to form high-speed gas, so that the gas in the gas branch pipe is driven to flow together, the gas and the air are mixed together and are combusted in the rotary hearth furnace. Thereby reducing the gas quantity of the rotary hearth furnace and achieving the purpose of energy conservation.
Description
Technical Field
The utility model belongs to the technical field of the comprehensive utilization of coal gas, especially, relate to a melt and divide coal gas comprehensive utilization device.
Background
The rotary hearth furnace and melting furnace melting direct reduced iron process is developed in the seventies of the last century, and along with the continuous deepening of research in recent years and the increasing attention paid to environmental protection, the characteristics of environmental friendliness, relative independence of production and the like of the rotary hearth furnace and melting furnace melting direct reduced iron process in the aspects of treating dust mud, blast furnace dust and sea sand ore in steel and iron works are gradually accepted, applied and developed by enterprises. The process adopts the rotary hearth furnace and the melting separation furnace to produce high-quality molten iron by a melting reduction technology, and realizes a new process of molten iron short flow. Compared with the traditional molten iron process, one of the advantages of the rotary hearth furnace and the melting separation furnace in the melting reduction process is that coal is used for replacing coke, and the other advantage is that no sewage or solid waste is generated in the process.
However, in the process of reducing iron oxide in the melting furnace, 600-800 ℃ high-temperature toxic gas is generated, wherein the concentration of CO is as high as 50-55%. From the aspect of resource utilization, the energy should be recovered and used elsewhere, so as to save energy, rather than being randomly dispersed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a melt and divide coal gas comprehensive utilization device aims at solving the high temperature coal gas that produces through recycle melt and divide the stove to reduce the gas volume of rotary hearth furnace gas nozzle, reach energy-conserving problem.
The utility model is realized in such a way, the melting and separating furnace gas comprehensive utilization device comprises an energy-saving component for saving energy, the energy-saving component comprises a melting and separating furnace, the upper surface of the melting and separating furnace is provided with a gas main pipe, one end of the gas main pipe is fixedly communicated with the melting and separating furnace, and the other end of the gas main pipe is fixedly communicated with a diffusing pipe;
a first gas pipeline is arranged on the outer side wall of the diffusing pipe, the diffusing pipe is fixedly communicated with the first gas pipeline, and a second gas pipeline is communicated with one end, far away from the end connected with the diffusing pipe, of the first gas pipeline;
and a gas branch pipe is arranged at the bottom of the second gas pipeline, one end of the gas branch pipe is fixedly communicated with the second gas pipeline, and the other end of the gas branch pipe is communicated with the rotary hearth furnace.
Preferably, the outer side wall of the gas branch pipe is embedded with a gas burner, and the gas branch pipe is communicated with the gas burner.
Preferably, one end of the gas burner is provided with an injection port.
Preferably, the gas branch pipe is L-shaped.
Compared with the prior art, the beneficial effects of the utility model are that: by arranging the energy-saving assembly, high-temperature coal gas generated in the reduction process of iron oxide in the melting and separating furnace flows into the coal gas branch pipe through the coal gas main pipe and the second coal gas pipeline; when the reduction reaction is carried out in the rotary hearth furnace, the gas and the air are compressed by the jet orifice to form high-speed gas, so that the gas in the gas branch pipe is driven to flow together, the gas and the air are mixed together and are combusted in the rotary hearth furnace. Thereby reducing the air supply quantity of the rotary hearth furnace and achieving the purpose of energy conservation.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a partial side view of a second gas line of the present invention;
in the figure: 1-energy-saving component, 11-melting furnace, 12-gas main pipe, 13-diffusing pipe, 14-first gas pipeline, 15-second gas pipeline, 16-gas branch pipe, 17-rotary hearth furnace, 18-gas burner and 19-jet orifice.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, a melting and separating furnace gas comprehensive utilization device comprises an energy-saving component 1 for saving energy, wherein the energy-saving component 1 comprises a melting and separating furnace 11, a gas main pipe 12 is arranged on the upper surface of the melting and separating furnace 11, one end of the gas main pipe 12 is fixedly communicated with the melting and separating furnace 11, and the other end of the gas main pipe 12 is fixedly communicated with a diffusion pipe 13; a first gas pipeline 14 is arranged on the outer side wall of the diffusing pipe 13, the diffusing pipe 13 is fixedly communicated with the first gas pipeline 14, and a second gas pipeline 15 is communicated with one end, far away from the end connected with the diffusing pipe 13, of the first gas pipeline 14; a gas branch pipe 16 is arranged at the bottom of the second gas pipeline 15, one end of the gas branch pipe 16 is fixedly communicated with the second gas pipeline 15, and the other end of the gas branch pipe 16 is communicated with a rotary hearth furnace 17.
In the embodiment, the melting furnace 11 and the gas main pipe 12 are arranged, so that high-temperature gas generated in the process of reducing iron oxide in the melting furnace 11 flows into the diffusing pipe 13 through the gas main pipe 12; through setting up the diffusion pipe 13, wherein install the solenoid valve on the diffusion pipe 13, make the staff through the switch of control solenoid valve, further control the flow of high temperature coal gas. By arranging the first gas pipeline 14 and the second gas pipeline 15, the gas in the diffusing pipe 13 flows into the gas branch pipe 16 through the first gas pipeline 14 and the second gas pipeline 15; by arranging the gas branch pipe 16, high-temperature gas flows into the rotary hearth furnace 17 through the gas branch pipe 16, so that the gas quantity of the rotary hearth furnace 17 is reduced, and the purpose of energy conservation is achieved.
Further, a gas burner 18 is embedded on the outer side wall of the gas branch pipe 16, and the gas branch pipe 16 is communicated with the gas burner 18.
In the present embodiment, by providing the gas burner 18, the worker supplies gas and air to the inside of the gas branch pipe 16 through the gas burner 18.
Further, one end of the gas burner 18 has an injection port 19.
In the present embodiment, the injection port 19 is provided, so that the gas and the air are compressed together by the injection port 19 to form a high-speed gas, and the gas in the gas branch pipe 16 is entrained to flow together, so that the gas, and the air are mixed together and burned in the rotary hearth furnace 17. Thereby reducing the gas quantity of the rotary hearth furnace 17 and achieving the purpose of energy conservation.
Further, the gas branch pipe 16 is L-shaped.
In the embodiment, the gas branch pipe 16 is arranged in an L shape, so that the L-shaped gas branch pipe 16 is convenient for installation of workers, and provides a certain buffer for gas flow.
In summary, high-temperature coal gas generated in the reduction process of iron oxide in the melting furnace 11 flows into the coal gas branch pipe 16 through the coal gas main pipe 12 and the second coal gas pipeline 15; when the reduction reaction is carried out in the rotary hearth furnace 17, the power supply of the electromagnetic valve is switched on, so that the gas and the air in the gas burner 18 respectively flow in from the tail part and the upper part of the pipeline and are compressed into high-speed gas through the jet orifice 19, and at the moment, the gas and the air are mixed together and are combusted in the rotary hearth furnace 17, thereby reducing the gas supply amount of the rotary hearth furnace 17 and achieving the purpose of energy conservation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a melting and separating coal gas comprehensive utilization device, includes energy-conserving subassembly (1) that is used for the energy saving, its characterized in that: the energy-saving assembly (1) comprises a melting furnace (11), a main gas pipe (12) is arranged on the upper surface of the melting furnace (11), one end of the main gas pipe (12) is fixedly communicated with the melting furnace (11), and the other end of the main gas pipe (12) is fixedly communicated with a diffusion pipe (13);
a first gas pipeline (14) is arranged on the outer side wall of the diffusing pipe (13), the diffusing pipe (13) is fixedly communicated with the first gas pipeline (14), and a second gas pipeline (15) is communicated with one end, far away from the end connected with the diffusing pipe (13), of the first gas pipeline (14);
a gas branch pipe (16) is arranged at the bottom of the second gas pipeline (15), one end of the gas branch pipe (16) is fixedly communicated with the second gas pipeline (15), and the other end of the gas branch pipe (16) is communicated with a rotary hearth furnace (17).
2. The comprehensive utilization device of the melting and separating furnace gas as claimed in claim 1, characterized in that: the outer side wall of the gas branch pipe (16) is embedded with a gas burner (18), and the gas branch pipe (16) is communicated with the gas burner (18).
3. The comprehensive utilization device of the melting and separating furnace gas as claimed in claim 2, characterized in that: one end of the gas burner (18) is provided with a jet orifice (19).
4. The comprehensive utilization device of the melting and separating furnace gas as claimed in claim 2, characterized in that: the gas branch pipe (16) is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021220756.4U CN212476809U (en) | 2020-06-28 | 2020-06-28 | Comprehensive utilization device for melting and separating furnace gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021220756.4U CN212476809U (en) | 2020-06-28 | 2020-06-28 | Comprehensive utilization device for melting and separating furnace gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212476809U true CN212476809U (en) | 2021-02-05 |
Family
ID=74412849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021220756.4U Expired - Fee Related CN212476809U (en) | 2020-06-28 | 2020-06-28 | Comprehensive utilization device for melting and separating furnace gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212476809U (en) |
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2020
- 2020-06-28 CN CN202021220756.4U patent/CN212476809U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |