CN211394520U - Device for treating blast furnace hearth freezing and furnace opening iron notch burying - Google Patents
Device for treating blast furnace hearth freezing and furnace opening iron notch burying Download PDFInfo
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- CN211394520U CN211394520U CN201922375586.0U CN201922375586U CN211394520U CN 211394520 U CN211394520 U CN 211394520U CN 201922375586 U CN201922375586 U CN 201922375586U CN 211394520 U CN211394520 U CN 211394520U
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Abstract
A device for treating the iron notch buried in the frozen and opened blast furnace hearth comprises an air inlet control pipe frame, an air-cooled oxygen lance and a support, and is characterized in that the air inlet control pipe frame is provided with a communication pipeline and a manual regulating valve, and is also provided with an oxygen inlet, an oxygen outlet, an air inlet and an air outlet; an air pipe is sleeved on the outer side surface of the outlet section of the air-cooling oxygen lance, a sight glass and a sight glass front regulating valve are installed at the other end opening of the air-cooling oxygen lance, branch pipes are arranged on the side surfaces of the air pipe and the air-cooling oxygen lance, and the two branch pipes are connected with an air outlet and an oxygen outlet on the air inlet control pipe frame through metal hoses. The utility model discloses a handle blast furnace hearth and freeze and blow-in buries indisputable mouthful device can freeze and blow in the cycle of stove to be handled the hearth and shorten to 1-2 days from original a week about, greatly reduced workman's intensity of labour has avoided the emergence of incident, and resources are saved simultaneously can satisfy the high yield of blast furnace, the production needs of fast product.
Description
Technical Field
The utility model belongs to the field of metallurgy, and relates to a device for treating the freezing of a blast furnace hearth and the burying of an iron notch during opening.
Background
The freezing of the hearth of the iron-making blast furnace refers to the condition that the hearth cannot be normally tapped when the furnace conditions are abnormal (such as coke reduction, misoperation of the blast furnace and great fluctuation of raw fuel). The blast furnace blow-in refers to the process that the whole blast furnace is filled with raw fuel, the hearth is in a normal temperature state, and the blast furnace is required to be converted into a normal production state in a short time. The treatment furnace hearth is frozen, about one week is needed, the main difficulty is that hot air enters from a tuyere, heat moves upwards, an iron notch is 3-4 meters below the tuyere, and the area from the iron notch to the tuyere is the furnace hearth area, so the heating speed of the whole furnace hearth is slow, and the recovery of a blast furnace is long. When the blast furnace is opened, the whole blast furnace is filled with raw fuel, after hot air is blown from the air port, the heat moves towards the upper part of the air port, the heating effect on the furnace hearth is poor, and the time for the blast furnace to recover to the normal production state is longer. The conventional modes of freezing and blowing in the furnace hearth cannot meet the requirements of pursuing high yield and fast yield in the existing metallurgical industry, and the conventional modes have long time consumption and large resource consumption, increase the labor intensity of workers and have certain safety risk.
Disclosure of Invention
The utility model aims at providing a convenient to use, high-efficient swift, can reduce workman intensity of labour's processing blast furnace hearth and freeze and blow in the device of indisputable mouthful of blowing in.
The utility model relates to a device for treating the iron notch of the blast furnace hearth, which comprises an air inlet control pipe frame, an air cooling oxygen lance and a bracket, and is characterized in that the air inlet control pipe frame is provided with a communicating pipeline and a manual regulating valve, and is also provided with an oxygen inlet, an oxygen outlet, an air inlet and an air outlet; an air pipe is sleeved on the outer side surface of the outlet section of the air-cooling oxygen lance, a sight glass and a sight glass front regulating valve are installed at the other end opening of the air-cooling oxygen lance, branch pipes are arranged on the side surfaces of the air pipe and the air-cooling oxygen lance, and the two branch pipes are connected with an air outlet and an oxygen outlet on the air inlet control pipe frame through metal hoses.
The utility model discloses a handle the device that blast furnace hearth freezes and the iron notch is buried in blowing in, freeze or blow in the prerequisite of blast furnace hearth, adjust suitable sky, oxygen proportion back with the air cooling oxygen rifle through the air inlet control pipe support, 3 meters deep position departments of disect insertion blast furnace iron notch (the degree of depth can be according to the adjustment of blast furnace volume), place on the frozen iron layer surface of hearth, oxygen lights the iron and releases a large amount of heats simultaneously under the effect of hot-blast, the iron that dies melts fast. Under the blow-in state, the hearth can be rapidly heated, and the blow-in period is greatly shortened. The pipeline is wrapped outside and air is introduced into the pipeline, so that the effect of cooling the air-cooling oxygen lance is mainly achieved, and the oxygen lance is prevented from being burnt due to overhigh temperature. Meanwhile, oxygen can be introduced according to the heating requirement, the auxiliary inner pipe can rapidly heat the hearth, and the efficient treatment of blast furnace hearth freezing and tapping is realized. The sight glass of one end design can observe the condition in the furnace hearth in real time.
The utility model discloses a handle the device that blast furnace hearth freezes and the iron notch is buried in blowing in stove can freeze and the cycle of blowing in stove shortens to 1-2 days from original a week left and right sides with handling the hearth, and greatly reduced workman's intensity of labour has avoided the emergence of incident, and resources are saved simultaneously can satisfy the high yield of blast furnace, the production needs of fast product.
Drawings
FIG. 1 is a schematic structural view of the present invention;
1. the system comprises an air inlet control pipe frame, 2 air-cooled oxygen lances, 3 oxygen inlets, 4 air inlets, 5 manual regulating valves, 6 pressure gauges, 7 supports, 8 sight glasses, 9 air pipe baffles, 10 oxygen pipes, 11 air pipes, 12 metal hoses, 13 sight glass front regulating valves.
Detailed Description
A device for treating the iron notch buried in the freezing and opening of a blast furnace hearth comprises an air inlet control pipe frame 1, an air-cooled oxygen lance 2 and a support 7, and is characterized in that a communication pipeline and a manual regulating valve 5 are arranged on the air inlet control pipe frame 1, and an oxygen inlet 3, an oxygen outlet, an air inlet 4 and an air outlet are also arranged on the air inlet control pipe frame; an air pipe 11 is sleeved on the outer side surface of the outlet section of the air-cooling oxygen lance 2, a sight glass 8 and a sight glass front regulating valve 13 are installed at the other end of the air-cooling oxygen lance 2, branch pipes are respectively arranged on the side surfaces of the air pipe 11 and the air-cooling oxygen lance 2, and the two branch pipes are connected with an air outlet and an oxygen outlet on the air inlet control pipe frame 1 through metal hoses 12.
Claims (1)
1. The utility model provides a handle blast furnace crucible and freeze and bury iron notch device with blowing in stove, includes air inlet control pipe support (1), air cooling oxygen rifle (2) and support (7), its characterized in that: the air inlet control pipe frame (1) is provided with a communicating pipeline and a manual regulating valve (5), and is also provided with an oxygen inlet (3), an oxygen outlet, an air inlet (4) and an air outlet; an air pipe (11) is sleeved on the outer side surface of the outlet section of the air-cooling oxygen lance (2), a sight glass (8) and a sight glass front regulating valve (13) are installed at the other end of the air-cooling oxygen lance (2), branch pipes are arranged on the side surfaces of the air pipe (11) and the air-cooling oxygen lance (2), and the two branch pipes are connected with an air outlet and an oxygen outlet on the air inlet control pipe frame (1) through metal hoses (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922375586.0U CN211394520U (en) | 2019-12-26 | 2019-12-26 | Device for treating blast furnace hearth freezing and furnace opening iron notch burying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922375586.0U CN211394520U (en) | 2019-12-26 | 2019-12-26 | Device for treating blast furnace hearth freezing and furnace opening iron notch burying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211394520U true CN211394520U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922375586.0U Active CN211394520U (en) | 2019-12-26 | 2019-12-26 | Device for treating blast furnace hearth freezing and furnace opening iron notch burying |
Country Status (1)
| Country | Link |
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| CN (1) | CN211394520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438268A (en) * | 2022-02-11 | 2022-05-06 | 山东钢铁集团永锋临港有限公司 | Boiling device and method for processing blast furnace hearth freezing |
-
2019
- 2019-12-26 CN CN201922375586.0U patent/CN211394520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438268A (en) * | 2022-02-11 | 2022-05-06 | 山东钢铁集团永锋临港有限公司 | Boiling device and method for processing blast furnace hearth freezing |
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