CN217636759U - Ignition furnace with protection system - Google Patents
Ignition furnace with protection system Download PDFInfo
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- CN217636759U CN217636759U CN202221544099.8U CN202221544099U CN217636759U CN 217636759 U CN217636759 U CN 217636759U CN 202221544099 U CN202221544099 U CN 202221544099U CN 217636759 U CN217636759 U CN 217636759U
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Abstract
The utility model relates to an ignition furnace with protection system, use in sintering equipment technical field, including ignition furnace body, air-supply line and gas piping, be provided with a plurality of gas branch pipe and a plurality of air branch pipe on the ignition furnace body, the one end and the gas piping of gas branch pipe communicate, the one end and the air-supply line intercommunication of air branch pipe, the air outlet of air branch pipe with gas branch pipe intercommunication, the other end and the internal nozzle of ignition furnace of gas branch pipe are connected, be provided with first fast-cutting valve and first manual valve on the gas piping, gas piping and be located and be provided with the nitrogen gas pipeline between first fast-cutting valve and the first manual valve on the gas piping, nitrogen gas piping is provided with the second fast-cutting valve, all be provided with the pipe that diffuses on every gas branch pipe, diffuse and be provided with all third fast-cutting valve and second manual valve on the pipe; the nitrogen pipeline is additionally arranged, so that the safe operation of the ignition furnace can be ensured, and the safety during working is improved.
Description
Technical Field
The utility model discloses use in sintering safety equipment technical field, especially relate to an ignition furnace with protection system.
Background
An igniter (furnace) in a sintering process in the metallurgical steel industry is an important link of a production process, wherein ignition sintering in the sintering process is to utilize a gas medium to be conveyed into an ignition furnace through a gas valve pipeline and utilize open fire to ignite and burn a mixed material in the ignition furnace.
Referring to fig. 1 and 2, the conventional ignition furnace includes an ignition furnace body 1', an air inlet pipe 2', a gas pipe 3', an air branch pipe 12' and a gas branch pipe 11', one end of the gas branch pipe 11' is communicated with the gas pipe 3', one end of the air branch pipe 12' is communicated with the air inlet pipe 2', an air outlet of the air branch pipe 12' is communicated with the gas branch pipe 11', and the other end of the gas branch pipe 11' is connected with a burner in the ignition furnace body 1 '; because the existing ignition furnace does not have an emergency automatic protection mode, under the condition of low pressure caused by unstable gas source or emergency cut-off source of gas supplied in emergency, residual gas of a gas branch pipe after a gas pipeline is cut off exists, and a furnace body gas safety accident is caused, and belongs to the category of potential safety hazard; in addition, the burner in the ignition furnace is easy to burn out at high temperature, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ignition furnace with protection system has solved the problem that above-mentioned exists.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides an ignition furnace with protection system, including ignition furnace body, air-supply line and gas piping, be provided with a plurality of gas branch pipe and a plurality of air branch pipe on the ignition furnace body, the one end of gas branch pipe with the gas piping intercommunication, air branch pipe's one end with the air-supply line intercommunication, air branch pipe's air outlet with the gas branch pipe intercommunication, the other end and this internal nozzle of ignition furnace of gas branch pipe are connected, be provided with first fast valve and first manual valve on the gas piping, the last just position of gas piping be provided with nitrogen pipeline between first fast valve and the first manual valve, be provided with the fast valve of second on the nitrogen pipeline, every all be provided with the pipe that diffuses on the gas branch pipe, it all is provided with third fast valve and the manual valve of second to diffuse to be provided with on the pipe.
Further, a third regulating valve for regulating the gas flow is arranged on the nitrogen pipeline.
Furthermore, a one-way valve is arranged on the nitrogen pipeline to ensure that gas flows into the gas branch pipe from the nitrogen pipeline in a one-way mode.
Furthermore, a one-way valve is arranged on the nitrogen pipeline to ensure that gas flows into the gas branch pipe from the nitrogen pipeline in a one-way mode.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses an ignition furnace with protection system, when in sintering production technology, because of the unstable condition that causes the gas pipeline internal pressure to be lower or promptly supply the gas of cutting off of coal gas source, carry nitrogen gas in the gas branch pipe through the nitrogen gas pipeline this moment, dilute the concentration of the gas of gas pipeline inside through nitrogen gas, discharge the gas in the gas branch pipe after will diluting through the bleeder line afterwards, and then prevent the emergence of furnace body incident; therefore, the safety operation of the ignition furnace can be ensured by additionally arranging the nitrogen pipeline, and the safety during working is improved.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a conventional ignition furnace;
FIG. 2 is a schematic view of a prior art gas pipe outlet with a flame entering;
fig. 3 is a schematic structural diagram of an ignition furnace with a protection system in an embodiment of the present invention. (ii) a
Wherein the reference numerals are as follows:
1. an ignition furnace body; 2. an air inlet pipeline; 3. a gas pipeline; 4. an electrically operated valve; 5. a check valve; 6. a first regulating valve; 7. a butterfly valve; 8. a blind plate valve; 9. a pressure maintaining valve; 10. a second regulating valve; 11. a gas branch pipe; 12. an air branch pipe; 13. a first quick-cut valve; 14. a first manual valve; 15. a nitrogen gas pipeline; 16. a second quick-cut valve; 17. a diffusing pipe; 18. a third quick-cut valve; 19. a second manual valve; 20. a fourth quick-cut valve; 21. a third regulating valve; 22. a one-way valve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 3, for the utility model provides an ignition furnace with protection system, including ignition furnace body 1, intake stack 2 and gas pipeline 3, wherein, the air intake of intake stack 2 is connected with external fire-retardant fan, has set gradually motorised valve 4, check valve 5 and first governing valve 6 on intake stack 2 from the air intake to the direction of air outlet, controls closing of intake stack 2 through motorised valve 4, guarantees through check valve 5 that the air current flows into ignition furnace body 1 in one-way, can adjust the size of the interior air current of intake stack 2 through first governing valve 6; a butterfly valve 7, a blind plate valve 8, a pressure stabilizing valve 9 and a second regulating valve 10 are sequentially arranged on the gas pipeline 4 from the gas inlet to the gas outlet; the ignition furnace comprises an ignition furnace body 1, and is characterized in that a plurality of gas branch pipes 11 and a plurality of air branch pipes 12 are arranged on the ignition furnace body 1, one ends of the gas branch pipes 11 are communicated with a gas pipeline 3, one ends of the air branch pipes 12 are communicated with an air inlet pipeline 2, air outlets of the air branch pipes 12 are communicated with the gas branch pipes 11, the other ends of the gas branch pipes 11 are connected with burners in the ignition furnace body 1, one ends, close to the gas branch pipes 11, of the gas pipeline 3 are provided with a first quick-cutting valve 13 and a first manual valve 14, a nitrogen pipeline 15 is arranged on the gas pipeline 3 and between the first quick-cutting valve 13 and the first manual valve 14, and a second quick-cutting valve 16 is arranged on the nitrogen pipeline 15; each gas branch pipe 11 is provided with a diffusing pipe 17, and the diffusing pipes 17 are provided with a third quick-cutting valve 18 and a second manual valve 19; further, a fourth quick-cut valve 20 is provided at an end of the intake duct 2 near the air branch duct 12.
Referring to fig. 3, when the sintering production is in normal operation, the valves on the gas inlet pipe 2 and the gas pipe 3 are both in an open state, and the valves on the nitrogen pipe 15 and the purge pipe 17 are both in a closed state; in the sintering production process, under the condition that the internal pressure of the gas pipeline 3 is low or the supply of gas is cut off emergently due to unstable gas source, a first quick-cut valve 13 on the gas pipeline 3 and a fourth quick-cut valve 20 on the air inlet pipeline 2 are closed under the condition of forming low-pressure protection, and simultaneously a second quick-cut valve 16 on the nitrogen pipeline 3 and a third quick-cut valve 18 on a diffusion pipe 17 are opened in a linkage manner, at the moment, nitrogen is conveyed into the gas branch pipe 11 through the nitrogen pipeline 3, the concentration of the gas in the gas branch pipe 11 is diluted through the nitrogen, and then the diluted gas in the gas branch pipe 11 is discharged through the diffusion pipe 17, so that the safety accident of a furnace body is prevented; wherein a part of nitrogen gas enters into furnace nozzle department through coal gas branch 11, cools down the nozzle through nitrogen gas, prevents that the higher damage nozzle of temperature from, prolongs the life of nozzle.
Further, referring to fig. 3, the nitrogen pipeline 3 is provided with a third regulating valve 21 for regulating the flow of the gas, so that the delivery flow of the nitrogen can be regulated by the third regulating valve 21 according to actual conditions, the usage amount of the nitrogen is reduced, and the nitrogen is saved. The nitrogen pipeline 3 is provided with a one-way valve 22 to ensure that gas flows from the nitrogen pipeline 3 to the gas branch pipe 11 in one way.
In summary, in the sintering production process, when the pressure inside the gas pipeline 3 is low or the emergency cut-off source of the supplied gas is cut off urgently due to the unstable gas source, nitrogen is conveyed into the gas branch pipe 11 through the nitrogen pipeline 3, the concentration of the gas inside the gas pipeline is diluted through the nitrogen, and then the diluted gas in the gas branch pipe 11 is discharged through the diffusing pipe 17, so that the occurrence of furnace accidents is prevented; therefore, the safe operation of the ignition furnace body 1 can be ensured by additionally arranging the nitrogen pipeline.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The ignition furnace with the protection system comprises an ignition furnace body, an air inlet pipeline and a gas pipeline, wherein a plurality of gas branch pipes and a plurality of air branch pipes are arranged on the ignition furnace body, one ends of the gas branch pipes are communicated with the gas pipeline, one ends of the air branch pipes are communicated with the air inlet pipeline, air outlets of the air branch pipes are communicated with the gas branch pipes, and the other ends of the gas branch pipes are connected with burners in the ignition furnace body.
2. The ignition furnace with a shielding system according to claim 1, wherein a third regulating valve for regulating a gas flow rate is provided on the nitrogen gas pipe.
3. The ignition furnace with the shielding system as claimed in claim 1 or 2, wherein the nitrogen gas pipe is provided with a check valve to ensure a one-way flow of gas from the nitrogen gas pipe into the gas branch pipe.
4. The ignition furnace with the shielding system as claimed in claim 3, wherein a fourth quick-cut valve is provided on an end of the intake duct adjacent to the air branch duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221544099.8U CN217636759U (en) | 2022-06-20 | 2022-06-20 | Ignition furnace with protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221544099.8U CN217636759U (en) | 2022-06-20 | 2022-06-20 | Ignition furnace with protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217636759U true CN217636759U (en) | 2022-10-21 |
Family
ID=83626331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221544099.8U Active CN217636759U (en) | 2022-06-20 | 2022-06-20 | Ignition furnace with protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217636759U (en) |
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2022
- 2022-06-20 CN CN202221544099.8U patent/CN217636759U/en active Active
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