CN205223280U - Blast furnace air feed system - Google Patents
Blast furnace air feed system Download PDFInfo
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- CN205223280U CN205223280U CN201520640776.XU CN201520640776U CN205223280U CN 205223280 U CN205223280 U CN 205223280U CN 201520640776 U CN201520640776 U CN 201520640776U CN 205223280 U CN205223280 U CN 205223280U
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- blast furnace
- blower fan
- furnace air
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Abstract
The utility model discloses a blast furnace air feed system, including computer, ethernet bridge, PLCDCS controller, a plurality of blast furnace supply duct way and emergent UNICOM pipeline. The utility model provides a blast furnace air feed system, is directed against the characteristics that the sediment was irritated to the blast -furnace tuyere, before the wind gap slag solidifies, resumes to reach pressure to the wind gap to overcome the interior stock column resistance of stove, reach the effect of irritating the sediment in the prevention wind gap, play fine promoting effect to the continuous stable yields of blast furnace.
Description
Technical field
The utility model relates to ironmaking technology field, particularly a kind of blast furnace air feed system.
Background technology
Along with the development of China's Iron And Steel Industry, the iron-smelting blast furnace sum of China has reached nearly thousand, the energy-conservation upgrading of iron and steel enterprise's new round, has occurred that more large batch of 450 cubic metres of blast furnace upgrade expandings are the not isometric iron-smelting blast furnaces such as 1080,1250,1650,2500 or 3000 cubic metres.All kinds of blast furnace is in operation and all will runs into an insoluble problem, and Here it is gives the blower fan of blast furnace air feed suddenly because machinery, electrical accident are shut down, and blast furnace stops air feed suddenly and causes blast-furnace tuyere pour slag.To about 10 ~ 20 seconds after Large Scale BF blowing-out in 1080-3000 cubic meter, in stove, unsegregated molten iron and Slag Blend deposit and all solidify on twenties air outlets, thus cause slag tuyere.Formed after slag tuyere, blast furnace must stop production repairing, and employ a large amount of human and material resources and be changed in air port, repairing process approximately needs tens hours, every blast furnace due to the direct economic loss that this accident causes will more than 2,000,000 yuan.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of blast furnace air feed system, for the feature of blast-furnace tuyere pour slag, before air port slag solidifies, recover to reach pressure to air port, to overcome stock column resistance in stove, reach the effect of prevention slag tuyere, good promoter action is played to the continuous stable yields of blast furnace.
For achieving the above object, a kind of blast furnace air feed system that the utility model proposes, comprises computer, Ethernet bridge, PLC/DCS controller, some blast furnace air-supply pipelines and emergent UNICOM pipeline, blast furnace air-supply pipeline one end is blower fan, the other end connects blast-furnace tuyere, sets gradually blower fan vacuum breaker from blower fan to the direction of blast furnace, blower fan outlet valve, tensimeter, hotblast stove, blower fan, blower fan vacuum breaker, blower fan outlet valve, tensimeter, hotblast stove is connected by pipe connecting between any two with blast furnace, and computer is connected with PLC/DCS controller by Ethernet bridge, PLC/DCS controller respectively with the blower fan in blast furnace air-supply pipeline, blower fan vacuum breaker, blower fan outlet valve is connected with tensimeter, arranges an emergent UNICOM pipeline between adjacent two blast furnace air-supply pipelines, and emergent UNICOM pipeline sets gradually the first adjustment type segregaion valve, wind turning controls butterfly valve and the second nodal pattern segregaion valve, the first adjustment type segregaion valve, wind turning controls butterfly valve and is connected with PLC/DCS controller with the second nodal pattern segregaion valve.
Each valve running status and pipeline pressure can be detected in real time by PLC/DCS controller, when wherein blast furnace air-supply pipeline breaks down or is abnormal, computer sends instruction by PLC/DCS controller to the blower fan of adjacent blast furnace air-supply pipeline and each valve, start emergent closed tube road direction defective pipe and carry out air feed, simultaneously also can to the accurate air feed of every bar blast furnace air-supply pipeline.
A kind of blast furnace air feed system that the utility model proposes, for the feature of blast-furnace tuyere pour slag, before air port slag solidifies, recover to reach pressure to air port, to overcome stock column resistance in stove, reach the effect of prevention slag tuyere, good promoter action is played to the continuous stable yields of blast furnace.
Accompanying drawing explanation
Fig. 1 is a kind of blast furnace air feed system overall structure schematic diagram that the utility model proposes.
Fig. 2 is blast furnace air-supply pipeline structural representation.
Embodiment
See accompanying drawing, a kind of blast furnace air feed system, comprises computer 1, Ethernet bridge 2, PLC/DCS controller 3, some blast furnace air-supply pipelines 4 and emergent UNICOM pipeline 5, blast furnace air-supply pipeline one end is blower fan 41, the other end connects the air port of blast furnace 6, sets gradually blower fan vacuum breaker 42 from blower fan to the direction of blast furnace, blower fan outlet valve 43, tensimeter 44, hotblast stove 45, blower fan, blower fan vacuum breaker, blower fan outlet valve, tensimeter, hotblast stove is connected by pipe connecting between any two with blast furnace, and computer is connected with PLC/DCS controller by Ethernet bridge, PLC/DCS controller respectively with the blower fan in blast furnace air-supply pipeline, blower fan vacuum breaker, blower fan outlet valve is connected with tensimeter, arranges an emergent UNICOM pipeline between adjacent two blast furnace air-supply pipelines, and emergent UNICOM pipeline sets gradually the first adjustment type segregaion valve 51, wind turning controls butterfly valve 52 and the second nodal pattern segregaion valve 53, first adjustment type segregaion valve, wind turning controls butterfly valve and is connected with PLC/DCS controller with the second nodal pattern segregaion valve.
Each valve running status and pipeline pressure can be detected in real time by PLC/DCS controller, when wherein blast furnace air-supply pipeline breaks down or is abnormal, computer sends instruction by PLC/DCS controller to the blower fan of adjacent blast furnace air-supply pipeline and each valve, start emergent closed tube road direction defective pipe and carry out air feed, simultaneously also can to the accurate air feed of every bar blast furnace air-supply pipeline.
A kind of blast furnace air feed system that the utility model proposes, for the feature of blast-furnace tuyere pour slag, before air port slag solidifies, recover to reach pressure to air port, to overcome stock column resistance in stove, reach the effect of prevention slag tuyere, good promoter action is played to the continuous stable yields of blast furnace.
Claims (1)
1. a blast furnace air feed system, it is characterized in that comprising computer, Ethernet bridge, PLC/DCS controller, some blast furnace air-supply pipelines and emergent UNICOM pipeline, blast furnace air-supply pipeline one end is blower fan, the other end connects blast-furnace tuyere, blower fan vacuum breaker is set gradually from blower fan to the direction of blast furnace, blower fan outlet valve, tensimeter, hotblast stove, blower fan, blower fan vacuum breaker, blower fan outlet valve, tensimeter, hotblast stove is connected by pipe connecting between any two with blast furnace, computer is connected with PLC/DCS controller by Ethernet bridge, PLC/DCS controller respectively with the blower fan in blast furnace air-supply pipeline, blower fan vacuum breaker, blower fan outlet valve is connected with tensimeter, an emergent UNICOM pipeline is set between adjacent two blast furnace air-supply pipelines, emergent UNICOM pipeline sets gradually the first adjustment type segregaion valve, wind turning controls butterfly valve and the second nodal pattern segregaion valve, first adjustment type segregaion valve, wind turning controls butterfly valve and is connected with PLC/DCS controller with the second nodal pattern segregaion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520640776.XU CN205223280U (en) | 2015-08-24 | 2015-08-24 | Blast furnace air feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520640776.XU CN205223280U (en) | 2015-08-24 | 2015-08-24 | Blast furnace air feed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205223280U true CN205223280U (en) | 2016-05-11 |
Family
ID=55898357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520640776.XU Active CN205223280U (en) | 2015-08-24 | 2015-08-24 | Blast furnace air feed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205223280U (en) |
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2015
- 2015-08-24 CN CN201520640776.XU patent/CN205223280U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |