CN211713141U - Tool for repairing furnace throat shape - Google Patents
Tool for repairing furnace throat shape Download PDFInfo
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- CN211713141U CN211713141U CN202020218951.7U CN202020218951U CN211713141U CN 211713141 U CN211713141 U CN 211713141U CN 202020218951 U CN202020218951 U CN 202020218951U CN 211713141 U CN211713141 U CN 211713141U
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- injection pipeline
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Abstract
The utility model discloses a repair instrument of stove throat stove type, including loading hopper and injection pipeline, the injection pipeline rear is connected with the compressed air pipeline, and the upside is linked together with loading hopper, and the place ahead is provided with the nozzle, is provided with the baiting valve below loading hopper, is provided with the air-vent valve in the department of being connected with the compressed air pipeline, still is provided with the fluid infusion storehouse on the injection pipeline of air-vent valve front end, is provided with the bleeder valve in the department of being linked together of fluid infusion storehouse and injection pipeline. A lifting hook is arranged on the charging funnel. The nozzle is duckbilled and is in threaded connection or welded in front of the injection pipeline. The utility model discloses simple structure, convenient operation is particularly suitable for the quick repair to the furnace throat stove type, and the construction speed is fast, and is efficient, effectively satisfies the production operation requirement of blast furnace.
Description
Technical Field
The utility model belongs to the technical field of steelmaking equipment, concretely relates to instrument of repairing furnace throat stove type.
Background
In the later stage of the blast furnace service, the refractory in the furnace drops seriously and changes greatly compared with the initial furnace shape, the distribution of the gas flow in the furnace is directly influenced, the utilization rate of the gas in the blast furnace is reduced, the fuel consumption is increased, the production cost is increased, the gas flow is disordered when the gas flow is serious, and serious production accidents such as cooling and slag pouring of the furnace are caused.
From the view of the change condition of the whole furnace type in the later period of the furnace campaign, the main point influencing the distribution of the gas flow in the furnace is the furnace throat of the blast furnace. The blast furnace throat consists of two parts, one part is water-cooled steel bricks, and the other part is a refractory cold-free area. The water-cooled steel brick part is made of special wear-resistant materials, and cooling water passes through the water-cooled steel brick part, so that the probability of breakage of the part is low during the period of one generation of furnace life. The key point here is that there is no cold zone part of refractory material, this part does not have cooling system, the long-time gas current in the stove washes and the friction of descending furnace charge, this part is all more serious in the later stage erosion of campaign, the deformation of this part directly leads to the change of furnace roof gas flow distribution, and then influences whole furnace condition trend.
In the past, a professional spraying construction team is needed to repair erosion of the furnace throat part, and although the spraying construction team has certain advantages in spraying quality, the professional spraying construction team needs at least about 7 days from early preparation to completion of construction, so that the long time is great in influence on production and operation of the company, and the construction cost is high. The blast furnace production is a continuous operation process, long-time maintenance operation is carried out, and the stable operation of the furnace condition is very unfavorable.
In conclusion, a tool for repairing the furnace throat shape is urgently needed, so that the operation time is effectively shortened, the furnace throat part is convenient to repair, and the production requirement of the blast furnace can be basically met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a repair furnace throat stove type's instrument to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a tool for repairing a furnace throat type is characterized in that: the injection device comprises a charging hopper and an injection pipeline, wherein the rear part of the injection pipeline is connected with a compressed air pipeline, the upper side of the injection pipeline is communicated with the charging hopper, a nozzle is arranged in front of the injection pipeline, a discharge valve is arranged below the charging hopper, a pressure regulating valve is arranged at the position where the injection pipeline is connected with the compressed air pipeline, a liquid supplementing bin is further arranged on the injection pipeline at the front end of the pressure regulating valve, and a liquid discharging valve is arranged at the position where the liquid supplementing bin is communicated with the.
Further: a lifting hook is arranged on the charging funnel.
Further: the nozzle is duckbilled and is in threaded connection or welded in front of the injection pipeline.
The utility model has the advantages that: the utility model discloses simple structure, convenient operation is particularly suitable for the quick repair to the furnace throat stove type, and the construction speed is fast, and is efficient, effectively satisfies the production operation requirement of blast furnace.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The sequence numbers in the figures illustrate: the device comprises a material loading funnel 1, a discharge valve 2, an injection pipeline 3, a pressure regulating valve 4, a compressed air pipeline 5, a nozzle 6, a liquid supplementing bin 7, a discharge valve 8 and a lifting hook 9.
Detailed Description
As shown in figure 1, for the utility model discloses structure a repair stove throat stove type's instrument, including loading funnel 1 and injection pipeline 3, the injection pipeline rear is connected with compressed air pipeline 5, and the upside is linked together with loading funnel, and the place ahead is provided with nozzle 6, is provided with baiting valve 2 below the loading funnel, is provided with air-vent valve 4 with compressed air pipeline department of being connected, still is provided with fluid infusion storehouse 7 on the injection pipeline of air-vent valve front end, is provided with bleeder valve 8 in fluid infusion storehouse and injection pipeline department of being linked together. The nozzle in the structure is a reducer pipe, the large head part is connected with the spraying pipeline, the small head part is outward, and the small head part can be circular or oval and the like, so that the pressure is improved, and the adhesive force of the spraying material is further enhanced.
Preferably: the loading funnel is provided with a lifting hook 9 matched with an external hoisting device, the lifting hook is welded outside the loading funnel and is matched with an electric hoist and the like through a steel wire rope. In addition, the lifting hook can also be matched with a handheld long rod, and the end part of the long rod can be provided with a hook or an iron ring matched with the lifting hook, so that an operator can control the rotation and the direction of the lifting hook through the long rod.
Preferably: the nozzle is duckbilled and is in threaded connection or welded in front of the injection pipeline.
The working process of the utility model is as follows:
1. the rear end of the tool of the utility model is connected with a compressed air pipeline, and can be connected by a quick joint or a hoop;
2. the tool lifting hook is connected with an electric hoist at the top of a blast furnace through a steel wire rope and is lifted into the blast furnace, the electric hoist is controlled to enable the tool to stay at a position to be sprayed and to be kept horizontal, and a nozzle is aligned to the position;
3. filling the prepared spray coating into a charging hopper of the tool;
4. adjusting the opening degree of the pressure regulating valve, controlling the flow of compressed air, opening the discharge valve, spraying the spray paint on the eroded part of the furnace throat by utilizing the compressed air, adjusting the position of a spraying tool according to the field spraying effect, ensuring uniform spraying as much as possible, and increasing the spray paint layer by layer. If the spray paint flows, the liquid discharge valve can be opened, and the molding auxiliary agent prepared in advance in the liquid supplementing bin is mixed with the spray paint, so that the molding speed is increased.
The utility model discloses simple structure, convenient operation is particularly suitable for the quick repair to the furnace throat stove type, and the construction speed is fast, and is efficient, effectively satisfies the production operation requirement of blast furnace.
Claims (3)
1. A tool for repairing a furnace throat type is characterized in that: the injection device comprises a charging hopper and an injection pipeline, wherein the rear part of the injection pipeline is connected with a compressed air pipeline, the upper side of the injection pipeline is communicated with the charging hopper, a nozzle is arranged in front of the injection pipeline, a discharge valve is arranged below the charging hopper, a pressure regulating valve is arranged at the position where the injection pipeline is connected with the compressed air pipeline, a liquid supplementing bin is further arranged on the injection pipeline at the front end of the pressure regulating valve, and a liquid discharging valve is arranged at the position where the liquid supplementing bin is communicated with the.
2. The tool for repairing a furnace throat according to claim 1, wherein: a lifting hook is arranged on the charging funnel.
3. The tool for repairing a furnace throat according to claim 1, wherein: the nozzle is duckbilled and is in threaded connection or welded in front of the injection pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218951.7U CN211713141U (en) | 2020-02-27 | 2020-02-27 | Tool for repairing furnace throat shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218951.7U CN211713141U (en) | 2020-02-27 | 2020-02-27 | Tool for repairing furnace throat shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211713141U true CN211713141U (en) | 2020-10-20 |
Family
ID=73395614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020218951.7U Active CN211713141U (en) | 2020-02-27 | 2020-02-27 | Tool for repairing furnace throat shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211713141U (en) |
-
2020
- 2020-02-27 CN CN202020218951.7U patent/CN211713141U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 115005 metallurgical street, old border district, Yingkou City, Liaoning Province Patentee after: Japan Steel Yingkou Medium Plate Co.,Ltd. Address before: 115005 metallurgical street, old border district, Yingkou City, Liaoning Province Patentee before: MINMETALS YINGKOU MEDIUM PLATE Co.,Ltd. |