CN214327774U - Blast furnace charge level lowering device - Google Patents
Blast furnace charge level lowering device Download PDFInfo
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- CN214327774U CN214327774U CN202022970166.XU CN202022970166U CN214327774U CN 214327774 U CN214327774 U CN 214327774U CN 202022970166 U CN202022970166 U CN 202022970166U CN 214327774 U CN214327774 U CN 214327774U
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Abstract
The utility model discloses a blast furnace charge level lowering device, which belongs to the technical field of blast furnace ironmaking auxiliary equipment. The blast furnace burden level lowering device comprises: a gas sampling mechanism; the coal gas sampling mechanism comprises: a communicating pipe, a purging pipeline and a sampling pipeline; a first through hole is formed at the joint of the upper edge of the furnace throat cylinder tile and the sealing cover; the first opening of the communicating pipe penetrates through the first through hole to be communicated with the blast furnace; the purging pipeline is communicated with the second opening of the communicating pipe; the sampling pipeline is communicated with the third opening of the communicating pipe; wherein, be provided with on the pipeline of sweeping and sweep and cut off the stop valve, be provided with the sample on the sampling pipeline and cut off the stop valve. The utility model discloses the charge level falls in blast furnace device can improve production efficiency, reduces the possibility of occurence of failure.
Description
Technical Field
The utility model relates to the technical field of blast furnace ironmaking auxiliary equipment, in particular to a charge level lowering device of a blast furnace.
Background
The blast furnace is iron-making equipment with continuous production, a furnace lining and a cooling wall can be corroded in different degrees along with the increase of the furnace age, the furnace lining needs to be regularly sprayed and repaired for alleviating the damage of the cooling wall of a furnace body and regulating the furnace lining, at the moment, materials in the furnace need to be completely removed, namely, a material line is brought below a tuyere through the operation of lowering the material level. And in the charge level lowering process, the position reached by the charge level is analyzed through the coal gas components in the furnace, so that various parameters are adjusted.
However, in the prior art, gas sampling needs pre-damping treatment, and pre-damping not only causes resource waste, but also increases the possibility of accidents.
SUMMERY OF THE UTILITY MODEL
The utility model provides a charge level device falls in blast furnace has solved or has partly solved among the prior art coal gas sample and need carry out damping down in advance and handle, and damping down in advance not only causes the waste of resource, has increased the technical problem who takes place the possibility of accident especially.
In order to solve the technical problem, the utility model provides a charge level device falls in blast furnace sets up on furnace throat jar tile along with the sealed cowling junction, the charge level device falls in blast furnace includes: a gas sampling mechanism; the coal gas sampling mechanism comprises: a communicating pipe, a purging pipeline and a sampling pipeline; a first through hole is formed at the joint of the upper edge of the furnace throat cylinder tile and the sealing cover; the first opening of the communicating pipe penetrates through the first through hole to be communicated with the blast furnace; the purging pipeline is communicated with the second opening of the communicating pipe; the sampling pipeline is communicated with the third opening of the communicating pipe; wherein, be provided with on the pipeline of sweeping and sweep and cut off the stop valve, be provided with the sample on the sampling pipeline and cut off the stop valve.
Furthermore, an access stop valve is arranged on the communicating pipe; the access valve is arranged between the first opening of the communicating pipe and the second opening of the communicating pipe.
Further, a check valve is arranged on the communicating pipe; the check valve is arranged between the first opening of the communicating pipe and the access check valve.
Further, the purge line includes: the device comprises a first purging pipeline, a purging hose and a second purging pipeline; the first end of the first blowing pipeline is communicated with the second opening of the communicating pipe; a first end of the purge hose is in communication with the second end of the first purge conduit, and a second end of the purge hose is in communication with the second purge conduit; the purge cutoff valve is provided on the first purge line.
Further, a purging control stop valve is arranged on the second purging pipeline.
Further, the sampling line comprises: the device comprises a first sampling pipeline, a first sampling hose, a second sampling pipeline and a second sampling hose; the first end of the first sampling pipeline is communicated with the third opening of the communicating pipe; the first end of the first sampling hose is communicated with the second end of the first sampling pipeline, and the second end of the first sampling hose is communicated with the first end of the second sampling pipeline; the second sampling hose is communicated with the second end of the second sampling pipeline; the sampling cut-off valve is arranged on the first sampling pipeline.
Furthermore, a dredging control stop valve is arranged on the second sampling pipeline; the second sampling pipeline is provided with a control stop valve; the control valve is arranged between the dredging control valve and the second sampling hose.
Further, a sampling control valve is arranged on the second sampling hose.
Further, the blast furnace burden surface lowering device further comprises: a water fetching mechanism; the water fetching mechanism is communicated with the sealing cover.
Further, the mechanism of fetching water includes: a high-pressure water bag and a plurality of water supply components; the water inlets of the water supply components are communicated with the high-pressure water bag, the sealing cover is provided with a plurality of water inlet holes, the water inlet holes correspond to the water supply components one by one, and the water outlets of the water supply components are communicated with the corresponding water inlet holes; the water supply part includes: a water supply pipeline, a water supply hose and an atomizing nozzle; the first end of the water supply pipeline is communicated with the high-pressure water drum, and the second end of the water supply pipeline is communicated with the first end of the water supply hose; a water inlet of the atomizing nozzle is communicated with the second end of the water supply hose, and a water outlet of the atomizing nozzle penetrates through the water inlet hole and is arranged in the blast furnace; a manual control valve is arranged on the water supply pipeline; the water supply pipeline is provided with an electric regulating valve which is arranged between the manual control valve and the high-pressure water drum; the water supply pipeline is provided with a flowmeter, and the flowmeter is arranged between the electric regulating valve and the high-pressure water drum.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the first through hole is arranged at the joint of the upper edge of the furnace throat cylinder tile and the sealing cover, the first opening of the communicating pipe passes through the first through hole to be communicated with the blast furnace, the purging pipeline is communicated with the second opening of the communicating pipe, the sampling pipeline is communicated with the third opening of the communicating pipe, the purging pipeline is provided with the purging cut-off valve, and the sampling pipeline is provided with the sampling cut-off valve, the first opening of the communicating pipe passes through the first through hole to be communicated with the blast furnace by utilizing the opportunity of maintenance, the sampling cut-off valve is closed, the purging cut-off valve is opened, the purging pipeline supplies inert gas to the communicating pipe through the second opening of the communicating pipe to ensure smooth pipeline, when the material level is lowered to take gas, the purging cut-off valve is closed, the sampling cut-off valve is opened, the sampling pipeline obtains the gas in the blast furnace through the third opening of the communicating pipe, the gas is conveyed to the gas taking platform through the sampling pipeline to finish the sampling of the gas in the furnace, the pre-damping down treatment is not needed, the production efficiency can be improved, and the possibility of accidents is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a sampling mechanism of a blast furnace burden surface lowering device provided by an embodiment of the invention;
FIG. 2 is a schematic structural view of a water-fetching mechanism of the charge level lowering device of the blast furnace in FIG. 1;
fig. 3 is a schematic layout view of the atomizer of the water fetching mechanism in fig. 2.
Detailed Description
Referring to fig. 1, the embodiment of the utility model provides a charge level device falls in blast furnace sets up on stove throat jar tile along with the sealed cowling junction, and the charge level device falls in communicating pipe blast furnace includes: a gas sampling mechanism.
The coal gas sampling mechanism comprises: communicating pipe 1, purge pipeline 2 and sample pipeline 3.
The furnace throat cylinder tile is provided with a first through hole at the joint of the upper edge and the sealing cover.
The first opening of the communicating pipe 1 passes through the first through hole to be communicated with the blast furnace.
The purge line 2 communicates with the second opening of the communication pipe 1.
Wherein, be provided with on sweeping pipeline 2 and sweep and cut off valve 4, be provided with on the sample pipeline 3 and sample and cut off valve 5.
In the embodiment of the application, as the first through hole is arranged at the joint of the upper edge of the furnace throat cylinder tile and the sealing cover, the first opening of the communicating pipe 1 passes through the first through hole to be communicated with the blast furnace, the purging pipeline 2 is communicated with the second opening of the communicating pipe 1, the sampling pipeline 3 is communicated with the third opening of the communicating pipe 1, the purging pipeline 2 is provided with the purging cut-off valve 4, and the sampling pipeline 3 is provided with the sampling cut-off valve 5, therefore, the first opening of the communicating pipe 1 passes through the first through hole to be communicated with the blast furnace by utilizing the maintenance opportunity, the sampling cut-off valve 5 is closed, the purging cut-off valve 4 is opened, the purging pipeline 2 supplies inert gas to the communicating pipe 1 through the second opening of the communicating pipe 1, the pipeline is ensured to be smooth, when the material falling surface is used for gas taking, the purging cut-off valve 4 is closed, the sampling cut-off valve 5 is opened, the sampling pipeline 3 obtains the gas in the blast furnace through the third opening of the communicating pipe 1, gas is conveyed to the gas taking platform through the sampling pipeline 3, so that gas sampling in the furnace is completed, pre-damping treatment is not needed, the production efficiency can be improved, and the possibility of accidents is reduced.
Specifically, communication pipe 1 is provided with access door 6.
The maintenance stop valve 6 is arranged between the first opening of the communicating pipe 1 and the second opening of the communicating pipe 1, and when an external pipeline is processed, the coal gas in the blast furnace is cut off through the maintenance stop valve 6.
The communicating pipe 1 is provided with a check valve 7. The check valve 7 is arranged between the first opening of the communicating pipe 1 and the access check valve 6, and gas in the blast furnace is prevented from escaping through the check valve 7.
Specifically, the purge line 2 includes: a first purging pipeline 2-1, a purging hose 2-2 and a second purging pipeline 2-3.
The first end of the first purge conduit 2-1 communicates with the second opening of the communicating tube 1.
The first end of the purge hose 2-2 is communicated with the second end of the first purge line 2-1, and the second end of the purge hose 2-2 is communicated with the second purge line 2-3.
The purge cutoff valve 4 is provided on the first purge line 2-1.
And a purging control stop valve 8 is arranged on the second purging pipeline 2-3.
When in normal production, the sampling cutoff valve 5 is closed, the overhaul cutoff valve 6, the purging cutoff valve 4 and the purging control cutoff valve 8 are opened, and nitrogen is introduced into the communicating pipe 1 through the first purging pipeline 2-1, the purging hose 2-2 and the second purging pipeline 2-3 to ensure the smooth pipeline.
Specifically, the sampling line 3 includes: a first sampling pipe 3-1, a first sampling hose 3-2, a second sampling pipe 3-3 and a second sampling hose 3-4.
The first end of the first sampling pipeline 3-1 is communicated with the third opening of the communicating pipe.
The first end of the first sampling hose 3-2 is communicated with the second end of the first sampling pipe 3-1, and the second end of the first sampling hose 3-2 is communicated with the first end of the second sampling pipe 3-3.
The second sampling hose 3-4 communicates with a second end of the second sampling pipe 3-3.
The sampling cutoff valve 5 is provided on the first sampling pipe 3-1.
The second sampling pipeline 3-3 is provided with a dredging control stop valve 9.
The second sampling pipeline 3-3 is provided with a control valve 10.
The control valve 10 is arranged between the unclogging control valve 9 and the second sampling tube 3-4.
The second sampling hose 3-4 is provided with a sampling control valve 11.
Before the material level falls, the sampling cut-off valve 5 is closed, the first sampling hose 3-2 is disconnected, the dredging pipeline control valve 9 and the control valve 10 are opened, compressed air is introduced into the second sampling hose 3-4, the second sampling pipeline 3-3 and the first sampling hose 3-2, the pipeline is purged, and the sampling pipeline 3 is guaranteed to be smooth.
When the material level is lowered to take gas, the blowing and sweeping cut-off valve 4 and the blowing and sweeping control valve 8 are closed, the overhauling and repairing valve 6, the sampling cut-off valve 5, the dredging pipeline control valve 9, the control valve 10 and the sampling control valve 11 are opened, and the gas in the blast furnace is conveyed to a gas taking platform through the first sampling pipeline 3-1, the first sampling hose 3-2, the second sampling pipeline 3-3 and the second sampling hose 3-4 in sequence to finish the gas sampling in the blast furnace.
Specifically, referring to fig. 2-3, the blast furnace burden surface lowering device further comprises: a water fetching mechanism 12.
The water fetching mechanism 12 is communicated with the sealing cover.
The water fetching mechanism 12 includes: a high-pressure water bag 12-1 and a plurality of water supply components 12-2.
The water inlets of the water supply components 12-2 are communicated with the high-pressure water drum 12-1, the sealing cover is provided with a plurality of water inlets, the water inlets are in one-to-one correspondence with the water supply components 12-2, and the water outlets of the water supply components 12-2 are communicated with the corresponding water inlets.
The water supply part 12-2 includes: a water supply pipeline 12-21, a water supply hose 12-22 and an atomizing nozzle 12-23.
The first end of the water supply pipeline 12-21 is communicated with the high-pressure water drum 12-1, and the second end of the water supply pipeline 12-21 is communicated with the first end of the water supply hose 12-22.
The water inlet of the atomizing nozzle 12-23 is communicated with the second end of the water supply hose 12-22, and the water outlet of the atomizing nozzle 12-23 passes through the water inlet hole and is arranged in the blast furnace.
The water supply pipeline 12-21 is provided with a manual control valve 12-24.
The water supply pipeline 12-21 is provided with an electric control valve 12-25, and the electric control valve 12-25 is arranged between the manual control valve 12-24 and the high-pressure water drum 12-1.
The water supply pipeline 12-21 is provided with a flow meter 12-26, and the flow meter 12-26 is arranged between the electric control valve 12-25 and the high-pressure water drum 12-1.
The number of the water inlets is preferably 8-12, and the water inlets are uniformly arranged on the sealing cover at equal angles and intervals, so that the uniform water pumping is ensured, the detonation frequency in the furnace is reduced, and the safety of the charge level lowering process is improved.
The atomizer 12-23 is fixedly arranged on the seal cover through a flange 12-27.
When water is required to be pumped, the atomizing nozzles 12-23 are fixedly arranged on the sealing cover, the water outlets of the atomizing nozzles 12-23 penetrate through the water inlet holes and extend into the blast furnace, the manual control valves 12-24 are manually opened, and water in the water pressing bag 12-1 is conveyed into the blast furnace sequentially through the water conveying pipes 12-21, the water conveying hoses 12-22 and the atomizing nozzles 12-23. The water quantity is regulated by the electric regulating valves 12-25 and fed back to the controller through the flow meters 12-26 for reference of an operator, and the unidirectional water quantity is regulated according to the distribution condition of the furnace top temperature.
Wherein the flow rate of each water supply pipeline 12-21 is 15-20 t/h, and the total water amount of 12 atomizing nozzles 12-23 can reach 180-240 t/h, so that the requirement of water fetching during normal production can be met, and the requirement of material level lowering and water fetching can be completely met.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a charge level device falls in blast furnace, sets up along and the sealed cowling junction on stove throat jar tile, its characterized in that, the charge level device falls in blast furnace includes: a gas sampling mechanism;
the coal gas sampling mechanism comprises: a communicating pipe, a purging pipeline and a sampling pipeline;
a first through hole is formed at the joint of the upper edge of the furnace throat cylinder tile and the sealing cover;
the first opening of the communicating pipe penetrates through the first through hole to be communicated with the blast furnace;
the purging pipeline is communicated with the second opening of the communicating pipe;
the sampling pipeline is communicated with the third opening of the communicating pipe;
wherein, be provided with on the pipeline of sweeping and sweep and cut off the stop valve, be provided with the sample on the sampling pipeline and cut off the stop valve.
2. The blast furnace burden surface lowering device according to claim 1, wherein:
an access stop valve is arranged on the communicating pipe;
the access valve is arranged between the first opening of the communicating pipe and the second opening of the communicating pipe.
3. The blast furnace burden surface lowering device according to claim 2, wherein:
a check valve is arranged on the communicating pipe;
the check valve is arranged between the first opening of the communicating pipe and the access check valve.
4. The blast furnace charge level lowering device according to claim 1, wherein the purge line comprises: the device comprises a first purging pipeline, a purging hose and a second purging pipeline;
the first end of the first blowing pipeline is communicated with the second opening of the communicating pipe;
a first end of the purge hose is in communication with the second end of the first purge conduit, and a second end of the purge hose is in communication with the second purge conduit;
the purge cutoff valve is provided on the first purge line.
5. The blast furnace burden surface lowering device according to claim 4, wherein:
and the second purging pipeline is provided with a purging control stop valve.
6. The blast furnace charge level lowering device according to claim 1, wherein the sampling pipe comprises: the device comprises a first sampling pipeline, a first sampling hose, a second sampling pipeline and a second sampling hose;
the first end of the first sampling pipeline is communicated with the third opening of the communicating pipe;
the first end of the first sampling hose is communicated with the second end of the first sampling pipeline, and the second end of the first sampling hose is communicated with the first end of the second sampling pipeline;
the second sampling hose is communicated with the second end of the second sampling pipeline;
the sampling cut-off valve is arranged on the first sampling pipeline.
7. The blast furnace burden surface lowering device according to claim 6, wherein:
a dredging control stop valve is arranged on the second sampling pipeline;
the second sampling pipeline is provided with a control stop valve;
the control valve is arranged between the dredging control valve and the second sampling hose.
8. The blast furnace burden surface lowering device according to claim 6, wherein:
and the second sampling hose is provided with a sampling control stop valve.
9. The blast furnace charge level lowering device according to claim 1, further comprising: a water fetching mechanism;
the water fetching mechanism is communicated with the sealing cover.
10. The blast furnace charge level lowering device according to claim 9, wherein the water supply mechanism comprises: a high-pressure water bag and a plurality of water supply components;
the water inlets of the water supply components are communicated with the high-pressure water bag, the sealing cover is provided with a plurality of water inlet holes, the water inlet holes correspond to the water supply components one by one, and the water outlets of the water supply components are communicated with the corresponding water inlet holes;
the water supply part includes: a water supply pipeline, a water supply hose and an atomizing nozzle;
the first end of the water supply pipeline is communicated with the high-pressure water drum, and the second end of the water supply pipeline is communicated with the first end of the water supply hose;
a water inlet of the atomizing nozzle is communicated with the second end of the water supply hose, and a water outlet of the atomizing nozzle penetrates through the water inlet hole and is arranged in the blast furnace;
a manual control valve is arranged on the water supply pipeline;
the water supply pipeline is provided with an electric regulating valve which is arranged between the manual control valve and the high-pressure water drum;
the water supply pipeline is provided with a flowmeter, and the flowmeter is arranged between the electric regulating valve and the high-pressure water drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022970166.XU CN214327774U (en) | 2020-12-11 | 2020-12-11 | Blast furnace charge level lowering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022970166.XU CN214327774U (en) | 2020-12-11 | 2020-12-11 | Blast furnace charge level lowering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214327774U true CN214327774U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022970166.XU Active CN214327774U (en) | 2020-12-11 | 2020-12-11 | Blast furnace charge level lowering device |
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| Country | Link |
|---|---|
| CN (1) | CN214327774U (en) |
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2020
- 2020-12-11 CN CN202022970166.XU patent/CN214327774U/en active Active
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