CN219547000U - Alloy baking furnace capable of preventing flameout by using converter gas - Google Patents
Alloy baking furnace capable of preventing flameout by using converter gas Download PDFInfo
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- CN219547000U CN219547000U CN202223508530.6U CN202223508530U CN219547000U CN 219547000 U CN219547000 U CN 219547000U CN 202223508530 U CN202223508530 U CN 202223508530U CN 219547000 U CN219547000 U CN 219547000U
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Abstract
The utility model relates to a flameout-preventing alloy baking furnace for converter gas, which relates to the technical field of steel manufacturing and comprises a furnace body, wherein a gas pipeline and a combustion air pipeline are communicated with each other, a blower is arranged in the combustion air pipeline, an auxiliary oxygen pipeline is communicated with each other on the combustion air pipeline, a pneumatic ball valve is arranged at one end of the auxiliary oxygen pipeline, one end of the pneumatic ball valve, which is far away from the auxiliary oxygen pipeline, is communicated with the combustion air pipeline, the pneumatic ball valve is used for controlling the on-off of the auxiliary oxygen pipeline, a flow control assembly is arranged on the auxiliary oxygen pipeline, and the flow control assembly is used for controlling the flow of oxygen. The utility model has the effects of reducing the condition that the flame in the alloy baking furnace is extinguished and improving the production safety.
Description
Technical Field
The utility model relates to the technical field of steel manufacturing, in particular to an alloy baking furnace capable of preventing flameout by using converter gas.
Background
Alloy baking ovens are one of the important process equipment in the steelmaking process, and alloy baking ovens generally use high heating value gas as an energy medium, such as coke oven gas or mixed gas. Along with the energy structure adjustment of a steel mill, the high-heat-value gas is used for power generation or other high-added-value processes, and the converter gas with medium heat value is used for an alloy baking furnace.
At present, in order to improve the energy utilization rate in steel plants, the alloy baking furnace adopts the structural form that a plurality of burners are arranged in the alloy baking furnace, the burners are communicated with a gas pipeline combined air combustion-supporting pipeline group together, the gas pipeline group is used for providing gas, and the air combustion-supporting pipeline group is used for providing air. The ferroalloy falls from the top of the alloy baking furnace to the alloy baking furnace, the gas and the air are burnt at the burner to generate flame, and the flame generated by the burner directly heats the ferroalloy in the alloy baking furnace.
In carrying out the present utility model, the inventors have found that at least the following problems exist in this technology: because the heat value of the converter gas changes in the steelmaking smelting process, if the heat value of the converter gas is lower, the shock wave generated by the ferroalloy in the blanking process is very easy to extinguish the flame, if the flame in the alloy baking furnace is extinguished, gas leakage can be generated, and if the gas leakage is not found in time, serious safety accidents can be caused.
Disclosure of Invention
In order to reduce the condition that flames in an alloy baking furnace are extinguished and improve production safety, the utility model provides the alloy baking furnace for preventing flameout by using converter gas.
The utility model provides a flameout-preventing alloy baking furnace using converter gas, which adopts the following technical scheme:
the utility model provides an with converter gas flameout-preventing alloy baking furnace, includes the furnace body, the intercommunication sets up coal gas pipeline and combustion air pipeline on the furnace body, set up the air-blower in the combustion air pipeline, the intercommunication sets up auxiliary oxygen pipeline on the combustion air pipeline, set up pneumatic ball valve on the auxiliary oxygen pipeline one end, auxiliary oxygen pipeline one end and combustion air pipeline intercommunication are kept away from to pneumatic ball valve, pneumatic ball valve is used for controlling auxiliary oxygen pipeline break-make, auxiliary oxygen pipeline is last to set up accuse flow subassembly, accuse flow subassembly is used for controlling oxygen flow.
Through adopting above-mentioned technical scheme, with converter gas and gas pipeline intercommunication, when the internal combustion nozzle of baking furnace ignites, the air-blower on the combustion-supporting air pipeline is opened, the air-blower is opened, air is introduced to the combustion-supporting air pipeline in, when pneumatic ball valve opened, air mixes the combustion-supporting gas with the oxygen in the auxiliary oxygen pipeline, combustion-supporting gas mixes with converter gas in the gas pipeline and burns, when converter gas calorific value is lower, the oxygen flow in the auxiliary oxygen pipeline is improved to the accuse flow subassembly, and then the internal oxygen content of auxiliary gas improves, make converter gas can burn fully, guarantee the stability of flame, in the ferroalloy unloading in-process, the shockwave that ferroalloy produced is difficult for putting out the flame, reduce the situation that the flame was put out in the alloy baking furnace and is led to gas leakage, improve production safety.
Preferably, a copper tube flame arrester is arranged between the combustion air pipeline and the auxiliary oxygen pipeline, one end of the copper tube flame arrester is communicated with the combustion air pipeline, and the other end of the copper tube flame arrester is communicated with one end, far away from the auxiliary oxygen pipeline, of the pneumatic ball valve.
Through adopting above-mentioned technical scheme, copper pipe flame arrester connects between combustion-supporting air pipeline and auxiliary oxygen pipeline, because the oxygen content is higher in the auxiliary oxygen pipeline, when the conflagration takes place in the oven, copper pipe flame arrester prevents that the intensity of a fire from spreading along auxiliary oxygen pipeline, improves production safety.
Preferably, the flow control assembly comprises a pressure reducing valve which is fixedly arranged on the auxiliary oxygen pipeline.
By adopting the technical scheme, the pressure reducing valve is adjusted according to the heat value of the converter gas, and then the pressure reducing valve adjusts the oxygen flow in the auxiliary oxygen pipeline, so that the effect of inputting the oxygen content according to the heat value of the converter gas is achieved, the converter gas is fully combusted, and the leakage caused by insufficient combustion of the gas is reduced.
Preferably, the flow control assembly further comprises a monitoring pipe and a pressure gauge, wherein the monitoring pipe is positioned between the pressure reducing valve and the pneumatic ball valve, one end of the monitoring pipe is communicated with the auxiliary oxygen pipeline, and the other end of the monitoring pipe is connected with the pressure gauge.
Through adopting above-mentioned technical scheme, the manometer detects the oxygen pressure in the auxiliary oxygen pipeline, and the staff of being convenient for monitors the oxygen pressure in the auxiliary oxygen pipeline in real time.
Preferably, a manual small ball valve is arranged on the auxiliary oxygen pipe, and the manual small ball valve is positioned on one side of the pressure reducing valve, which is far away from the pneumatic ball valve.
Through adopting above-mentioned technical scheme, when the alloy baking furnace uses, need the staff to the on-the-spot manual opening manual ball valve of alloy baking furnace, and then make the staff confirm the circumstances that oxygen was supplied to combustion air pipeline through supplementary oxygen pipeline to the on-the-spot, reduce the circumstances that supplementary oxygen pipeline was opened by mistake.
Preferably, a Y-shaped filter is arranged on the auxiliary oxygen pipe, and the Y-shaped filter is positioned on one side of the manual small ball valve, which is far away from the pneumatic ball valve.
Through adopting above-mentioned technical scheme, oxygen gets into supplementary oxygen pipeline, and Y type filter filters oxygen, and then clears away the impurity that contains in the oxygen, makes other accessories on the supplementary oxygen pipeline be difficult for wearing and tearing and jam, makes other accessory valves normal use.
Preferably, a mounting flange is fixedly arranged at one end, far away from the pneumatic ball valve, of the auxiliary oxygen pipeline.
By adopting the technical scheme, the installation flange is arranged on the end wall of the auxiliary oxygen pipeline, so that the auxiliary oxygen pipeline is convenient to be connected with the oxygen supply device.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. by arranging the furnace body, the gas pipeline, the combustion air pipeline, the blower, the auxiliary oxygen pipeline, the pneumatic ball valve and the flow control assembly, the condition that the flame in the alloy baking furnace is extinguished to cause gas leakage is reduced, and the production safety is improved;
2. by arranging the red copper pipe flame arresters, the red copper pipe flame arresters prevent fire from spreading along the auxiliary oxygen pipeline, so that the production safety is improved;
3. through setting up Y type filter, clear away the impurity that contains in the oxygen, make other accessory valves normal use.
Drawings
FIG. 1 is a schematic diagram of a furnace gas flameout preventing alloy baking furnace according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram of an auxiliary oxygen line in accordance with an embodiment of the present utility model.
Reference numerals illustrate: 1. a furnace body; 2. a gas line; 21. a gas quick-cutting valve; 3. a combustion air line; 32. a blower; 4. an auxiliary oxygen line; 41. a mounting flange; 5. pneumatic ball valves; 6. a flow control assembly; 61. a pressure reducing valve; 62. monitoring a tube; 63. a pressure gauge; 7. a red copper pipe flame arrester; 8. a manual small ball valve; 9. a Y-type filter.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-2.
The embodiment of the utility model discloses an alloy baking furnace capable of preventing flameout by using converter gas. Referring to fig. 1 and 2, the burner furnace comprises a furnace body 1, wherein a plurality of burners are arranged on the inner wall of the furnace body 1, and a gas pipeline 2 and a combustion air pipeline 3 are arranged outside the furnace body 1. One end of the gas pipeline 2 is communicated with the burner, the other end of the gas pipeline 2 is communicated with converter gas, and a gas quick-cutting valve 21 is arranged on the gas pipeline 2. One end of the combustion air pipeline 3 is communicated with the burner, and the other end of the combustion air pipeline 3 is provided with a blower 32. The bending part of the combustion air pipeline 3 is communicated with an auxiliary oxygen pipeline 4, and the auxiliary oxygen pipeline 4 adopts stainless steel seamless steel pipes. One end of the oxygen assisting pipeline is welded with a mounting flange 41, and the mounting flange 41 is used for being connected with oxygen supply arrangement. The other end of the auxiliary oxygen pipeline 4 is provided with a pneumatic ball valve 5, one end, far away from the auxiliary oxygen pipeline 4, of the pneumatic ball valve 5 is communicated with the combustion air pipeline 3, and the pneumatic ball valve 5 is used for controlling the on-off of the auxiliary oxygen pipeline 4. The auxiliary oxygen pipeline 4 is provided with a flow control assembly 6, and the flow control assembly 6 is used for controlling the oxygen flow. When the blower 32 is not activated, the pneumatic ball valve 5 closes the shut-off auxiliary oxygen line 4. When the gas quick-cutting valve 21 is closed, the pneumatic ball valve 5 is synchronously closed. When the inner burner of the baking furnace is ignited, the blower 32 on the combustion air pipeline 3 is started, and the blower 32 introduces air into the combustion air pipeline 3. When the blower 32 is turned on, the pneumatic ball valve 5 is turned on, so that the oxygen in the auxiliary oxygen pipeline 4 and the air in the combustion air pipeline 3 are mixed to form combustion-supporting gas, and the combustion-supporting gas and the converter gas in the gas pipeline 2 are mixed for combustion. When the heat value of the converter gas is lower, the flow control assembly 6 is adjusted to improve the oxygen flow in the auxiliary oxygen pipeline 4, increase the oxygen concentration in the auxiliary gas, fully burn the converter gas after being mixed with the auxiliary gas, and ensure the stability of flame. When the heat value of the converter gas is low, auxiliary oxygen is introduced into the combustion air pipeline 3, so that flame on the burner is combusted stably, and in the blanking process of the ferroalloy, the impact wave generated by the ferroalloy is not easy to extinguish the flame, thereby reducing the condition that the flame in the alloy baking furnace is extinguished to cause gas leakage and improving the production safety.
In order to improve production safety, referring to fig. 1 and 2, a copper pipe flame arrester 7 is installed between the combustion air pipeline 3 and the auxiliary oxygen pipeline 4, one end of the copper pipe flame arrester 7 is communicated with the curved way of the combustion air pipeline 3, and the other end of the copper pipe flame arrester 7 is communicated with one end, far away from the auxiliary oxygen pipeline 4, of the pneumatic ball valve 5. Because the oxygen content in the auxiliary oxygen pipeline 4 is higher, when a fire disaster occurs in the baking furnace, the fire arrestor 7 for the copper pipe prevents the fire disaster from spreading along the auxiliary oxygen pipeline 4, and improves the production safety.
In order to control the flow of oxygen in the auxiliary oxygen line 4, referring to fig. 2, the flow control assembly 6 includes a pressure reducing valve 61, a monitoring pipe 62 and a pressure gauge 63, both the pressure reducing valve 61 and the monitoring pipe 62 being mounted on the auxiliary oxygen line 4. The monitoring pipe 62 is located between relief valve 61 and pneumatic ball valve 5, and monitoring pipe 62 one end and supplementary oxygen pipeline 4 intercommunication each other, and monitoring pipe 62 other end is connected with manometer 63. When the heat value of the converter gas is low, the pressure reducing valve 61 is adjusted to improve the oxygen flow in the auxiliary oxygen pipeline 4, and the pressure gauge 63 is used for detecting the oxygen pressure in the oxygen pipeline, so that the converter gas can be combusted fully. When the heat value of the converter gas is normal, the pressure reducing valve 61 is adjusted to reduce the oxygen flow in the auxiliary oxygen pipeline 4.
In order to reduce the false opening of the auxiliary oxygen line 4, referring to fig. 2, a manual small ball valve 8 is mounted on the auxiliary oxygen line 4, and the manual small ball valve 8 is located on the side of the pressure reducing valve 61 away from the pneumatic ball valve 5. When the alloy roaster is used, a worker is required to go to the alloy roaster to manually open the manual ball valve. Further, the operator can check the condition that the oxygen is supplied to the combustion air line 3 through the auxiliary oxygen line 4 on site, and the false opening of the auxiliary oxygen line 4 can be reduced.
In order to remove impurities contained in the oxygen, referring to fig. 2, a Y-shaped filter 9 is installed on the auxiliary oxygen pipeline 4, and the Y-shaped filter 9 is located on the side of the manual small ball valve 8 away from the pneumatic ball valve 5. The oxygen enters the auxiliary oxygen pipeline 4, and the Y-shaped filter 9 filters the oxygen so as to remove impurities contained in the oxygen. Other accessories on the auxiliary oxygen pipeline 4 are not easy to wear and block, so that other accessory valves are normally used.
The embodiment of the utility model relates to an implementation principle of a flameout-preventing alloy baking furnace by using converter gas, which comprises the following steps: when both the blower 32 and the gas quick-cut valve 21 are opened, the blower 32 introduces air into the combustion air pipe 3, converter gas is introduced into the gas pipe, the air is mixed with the converter gas to burn, and flames are injected into the oven through the burner. When the blower 32 and the gas quick-cutting valve 21 are both opened, the pneumatic ball valve 5 can be opened, so that the oxygen in the auxiliary oxygen pipeline 4 and the air in the combustion air pipeline 3 are mixed to form combustion-supporting gas, and the combustion-supporting gas and the converter gas in the gas pipeline 2 are mixed for combustion. When the heat value of the converter gas is low, the pressure reducing valve 61 is regulated, the oxygen flow in the auxiliary oxygen pipeline 4 is improved, the oxygen concentration in the auxiliary gas is increased, the converter gas and the auxiliary gas are fully combusted after being mixed, the stability of flame is ensured, and then the shock wave generated by the ferroalloy is not easy to extinguish the flame in the process of blanking the ferroalloy. The condition that the flame in the alloy baking furnace is extinguished to cause gas leakage is reduced, and the production safety is improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The utility model provides a prevent flameout alloy bake out furnace with converter gas, includes furnace body (1), the intercommunication sets up gas line (2) and combustion air pipeline (3) on furnace body (1), set up air-blower (32), its characterized in that in combustion air pipeline (3): the auxiliary oxygen pipeline (4) is arranged on the combustion air pipeline (3) in a communicating mode, the pneumatic ball valve (5) is arranged at one end of the auxiliary oxygen pipeline (4), one end of the pneumatic ball valve (5) away from the auxiliary oxygen pipeline (4) is communicated with the combustion air pipeline (3), the pneumatic ball valve (5) is used for controlling on-off of the auxiliary oxygen pipeline (4), the flow control assembly (6) is arranged on the auxiliary oxygen pipeline (4), and the flow control assembly (6) is used for controlling oxygen flow.
2. A furnace gas flameout preventing alloy roaster according to claim 1, wherein: copper pipe flame arrester (7) are arranged between combustion air pipeline (3) and auxiliary oxygen pipeline (4), copper pipe flame arrester (7) one end and combustion air pipeline (3) communicate each other, copper pipe flame arrester (7) other end and pneumatic ball valve (5) are kept away from auxiliary oxygen pipeline (4) one end and communicate each other.
3. A furnace gas flameout preventing alloy roaster according to claim 1, wherein: the flow control assembly (6) comprises a pressure reducing valve (61), and the pressure reducing valve (61) is fixedly arranged on the auxiliary oxygen pipeline (4).
4. A furnace gas flameout preventing alloy roaster according to claim 3, wherein: the flow control assembly (6) further comprises a monitoring tube (62) and a pressure gauge (63), the monitoring tube (62) is located between the pressure reducing valve (61) and the pneumatic ball valve (5), one end of the monitoring tube (62) is communicated with the auxiliary oxygen pipeline (4), and the other end of the monitoring tube (62) is connected with the pressure gauge (63).
5. A furnace gas flameout preventing alloy roaster according to claim 3, wherein: the auxiliary oxygen pipeline (4) is provided with a manual small ball valve (8), and the manual small ball valve (8) is positioned on one side of the pressure reducing valve (61) far away from the pneumatic ball valve (5).
6. The furnace gas flameout preventing alloy baking furnace according to claim 5, wherein: the auxiliary oxygen pipeline (4) is provided with a Y-shaped filter (9), and the Y-shaped filter (9) is positioned on one side of the manual small ball valve (8) far away from the pneumatic ball valve (5).
7. A furnace gas flameout preventing alloy roaster according to claim 1, wherein: and one end, far away from the pneumatic ball valve (5), of the auxiliary oxygen pipeline (4) is fixedly provided with a mounting flange (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223508530.6U CN219547000U (en) | 2022-12-28 | 2022-12-28 | Alloy baking furnace capable of preventing flameout by using converter gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223508530.6U CN219547000U (en) | 2022-12-28 | 2022-12-28 | Alloy baking furnace capable of preventing flameout by using converter gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219547000U true CN219547000U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223508530.6U Active CN219547000U (en) | 2022-12-28 | 2022-12-28 | Alloy baking furnace capable of preventing flameout by using converter gas |
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| Country | Link |
|---|---|
| CN (1) | CN219547000U (en) |
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2022
- 2022-12-28 CN CN202223508530.6U patent/CN219547000U/en active Active
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