CN217303595U - Nitrogen protection device of feed bin under hot stove in ore deposit - Google Patents
Nitrogen protection device of feed bin under hot stove in ore deposit Download PDFInfo
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- CN217303595U CN217303595U CN202122797558.5U CN202122797558U CN217303595U CN 217303595 U CN217303595 U CN 217303595U CN 202122797558 U CN202122797558 U CN 202122797558U CN 217303595 U CN217303595 U CN 217303595U
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- pipe
- bin
- air inlet
- inlet pipe
- blanking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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Abstract
The utility model discloses a nitrogen protection device of a blanking bin of an ore smelting furnace, which comprises a vertically arranged blanking pipe, wherein a hydraulic gate valve is installed on the blanking pipe, the top end of the blanking pipe is connected with the blanking bin, an air inlet pipe is arranged outside the blanking bin, the air inlet pipe is outwards connected with a nitrogen pipeline, the air inlet pipe is inwards communicated with the blanking bin, and an air valve is installed on the air inlet pipe; the utility model has the advantages that: the utility model has simple structure, the nitrogen sealing device is additionally arranged at the bin of the sealed submerged arc furnace, and the gas leakage can be effectively prevented when the furnace pressure changes, thereby ensuring the safety of operators on the production site; meanwhile, the coal gas can be replaced when the electric furnace is overhauled, so that the overhauling safety is ensured.
Description
The technical field is as follows:
the utility model relates to a hot stove equipment technical field in ore deposit especially relates to a nitrogen protection device of feed bin under hot stove in ore deposit.
Background art:
conveying various processed qualified raw materials of the closed ore-smelting furnace to a charging platform of an electric furnace workshop through a feeding and proportioning system, unloading the mixed materials to a furnace top bin through a furnace top annular hopper car, continuously adding furnace materials into the furnace through a material pipe, continuously smelting, and tapping at regular time; the production of manganese series ferroalloy products, the main raw materials are ores and carbonaceous reducing agents, and the raw materials are in reduction reaction at high melting temperature in the smelting process of the submerged arc furnace to generate high-temperature dust-containing gas containing carbon monoxide, methane, hydrogen, carbon dioxide and the like; the normal furnace pressure of the closed submerged arc furnace is operated within the range of-10 Pa to +10Pa in the production process, but when the furnace condition changes or a gas purification system has problems, the furnace pressure can rise instantly, carbon monoxide can leak due to the rise of the furnace pressure, and a material pipe and a material bin are serious leakage points in the closed submerged arc furnace, so that gas poisoning accidents can be caused.
The utility model has the following contents:
an object of the utility model is to provide a nitrogen protection device of feed bin under hot stove in ore deposit.
The contents of the utility model are as follows: the utility model provides a hot stove in ore deposit feed bin's nitrogen protection device down, its unloading pipe that includes vertical setting install the hydraulic pressure push-pull valve on the unloading pipe the top of unloading pipe is connected with down the feed bin be provided with the intake pipe outside the unloading storehouse, the intake pipe is outwards connected with the nitrogen gas pipeline, the intake pipe inwards is linked together with down the feed bin install the pneumatic valve in the intake pipe.
Furthermore, a circular pipe is coaxially sleeved outside the blanking bin and communicated with the air inlet pipe, a plurality of air blowing pipes are uniformly distributed and connected on the inner edge of the circular pipe along the circumferential direction, and the other ends of the air blowing pipes are communicated with the blanking bin.
Furthermore, an annular protective cover is arranged at the position of the air outlet of the air blowing pipe, the protective cover is fixedly installed on the inner wall of the lower storage bin, and the air outlet of the air blowing pipe is prevented from being washed by the blanking.
Furthermore, a wear-resistant coating is coated on the material receiving surface of the protective cover.
The utility model has the advantages that: the utility model has simple structure, the nitrogen sealing device is additionally arranged at the bin of the sealed submerged arc furnace, and the gas leakage can be effectively prevented when the furnace pressure changes, thereby ensuring the safety of operators on the production site; meanwhile, when the electric furnace is overhauled, the coal gas can be replaced, and the overhauling safety is ensured.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a partial cross-sectional view of a front view of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 2;
in the figure, a blanking bin 1, a blanking pipe 2, an annular pipe 3, an air blowing pipe 4, an air inlet pipe 5, a hydraulic gate valve 6 and a protective cover 7.
The specific implementation mode is as follows:
as shown in fig. 1 to 3, the nitrogen protection device for the blanking bin of the submerged arc furnace comprises a vertically arranged blanking tube 2, wherein a hydraulic gate valve 6 is installed on the blanking tube 2, the top end of the blanking tube 2 is connected with the blanking bin 1, an air inlet pipe 5 is arranged outside the blanking bin 1, the air inlet pipe 5 is outwards connected with a nitrogen pipeline, the air inlet pipe 5 is inwards communicated with the blanking bin 1, and an air valve is installed on the air inlet pipe 5; a circular pipe 3 is coaxially sleeved outside the blanking bin 1, the circular pipe 3 is communicated with the air inlet pipe 5, a plurality of air blowing pipes 4 are uniformly distributed and connected on the inner edge of the circular pipe 3 along the circumferential direction, and the other ends of the air blowing pipes 4 are communicated with the blanking bin 1; an annular protective cover 7 is further arranged at the air outlet of the air blowing pipe 4, the protective cover 7 is fixedly mounted on the inner wall of the blanking bin 1, and the air outlet of the air blowing pipe 4 is prevented from being washed by blanking through the protective cover 7; and the material receiving surface of the protective cover 7 is coated with a wear-resistant coating.
The working principle is as follows: during operation, when the furnace pressure is unusual, the pneumatic valve that opens that can be timely, nitrogen gas blows down feed bin 1 through intake pipe 5, ring canal 3, gas blow pipe 4 in proper order, forms nitrogen gas sealing protection layer in feed bin 1 down, prevents that the coal gas from revealing.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a nitrogen protection device of feed bin under hot stove in ore deposit, its includes unloading pipe (2) of vertical setting install hydraulic pressure push-pull valve (6) on unloading pipe (2) the top of unloading pipe (2) is connected with feed bin (1), its characterized in that down: an air inlet pipe (5) is arranged outside the lower storage bin (1), the air inlet pipe (5) is outwards connected with a nitrogen pipeline, the air inlet pipe (5) is inwards communicated with the lower storage bin (1), and an air valve is arranged on the air inlet pipe (5).
2. The nitrogen protection device for the submerged arc furnace blanking bin according to claim 1, characterized in that: the feeding device is characterized in that an annular pipe (3) is coaxially sleeved outside the feeding bin (1), the annular pipe (3) is communicated with the air inlet pipe (5), a plurality of air blowing pipes (4) are uniformly distributed on the inner edge of the annular pipe (3) along the circumferential direction, and the other ends of the air blowing pipes (4) are communicated with the feeding bin (1).
3. The nitrogen protection device for the submerged arc furnace discharge bin according to claim 2, characterized in that: the air outlet position of the air blowing pipe (4) is also provided with an annular protective cover (7), the protective cover (7) is fixedly installed on the inner wall of the lower storage bin (1), and the air outlet of the air blowing pipe (4) is free from blanking and washing due to the protective cover (7).
4. The nitrogen protection device for the submerged arc furnace blanking bin according to claim 3, characterized in that: and a wear-resistant coating is coated on the material receiving surface of the protective cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122797558.5U CN217303595U (en) | 2021-11-16 | 2021-11-16 | Nitrogen protection device of feed bin under hot stove in ore deposit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122797558.5U CN217303595U (en) | 2021-11-16 | 2021-11-16 | Nitrogen protection device of feed bin under hot stove in ore deposit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217303595U true CN217303595U (en) | 2022-08-26 |
Family
ID=82911783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122797558.5U Active CN217303595U (en) | 2021-11-16 | 2021-11-16 | Nitrogen protection device of feed bin under hot stove in ore deposit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217303595U (en) |
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2021
- 2021-11-16 CN CN202122797558.5U patent/CN217303595U/en active Active
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