CN221051908U - Bottom air inlet structure of steelmaking furnace - Google Patents
Bottom air inlet structure of steelmaking furnace Download PDFInfo
- Publication number
- CN221051908U CN221051908U CN202322417288.XU CN202322417288U CN221051908U CN 221051908 U CN221051908 U CN 221051908U CN 202322417288 U CN202322417288 U CN 202322417288U CN 221051908 U CN221051908 U CN 221051908U
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- Prior art keywords
- gas
- air
- fan
- furnace body
- inlet structure
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Links
- 238000009628 steelmaking Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 68
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a bottom air inlet structure of a steelmaking furnace, which comprises supporting legs, wherein the tops of the supporting legs are connected with two symmetrical supporting columns, the tops of the two supporting columns are fixedly connected with a furnace body, a fan is arranged below the furnace body, the air outlet end of the fan is communicated with a fourth air conveying pipe, the fourth air conveying pipe penetrates through the furnace body and is communicated with an air guide cover, the bottom of the fan is fixedly connected with an air mixing mechanism through supporting rods, two air inlets are arranged on two sides of the air mixing mechanism, each air inlet position is connected with an air supply tank through a first air conveying pipe, an air inlet valve is arranged on the first air conveying pipe, and a filtering assembly is arranged on the first air conveying pipe.
Description
Technical Field
The utility model relates to the technical field of steelmaking furnaces, in particular to a bottom air inlet structure of a steelmaking furnace.
Background
The steel-smelting furnace is a device for obtaining the best performance by controlling the carbon content, eliminating harmful elements, retaining beneficial elements and adjusting the proportion among elements after smelting the scrap steel, and the liner material is generally refractory material with the temperature of about 1600 ℃.
The prior patent CN216919317U provides a bottom air supply device of a fuel steelmaking furnace, which comprises a fan, wherein the fan is arranged on an air supply pipe, the fan is arranged on one side of the surface of a support plate through a mounting seat, and a filter assembly is further arranged on the other side of the surface of the support plate.
However, the device has certain defects when in use, the gas conveyed by the steelmaking furnace is not combusted sufficiently when in use, the fuel gas and the oxygen are required to be conveyed, and the two gases are required to be fully mixed, so that the combustion effect is better.
Based on the above, the bottom air inlet structure of the steelmaking furnace can eliminate the defects of the prior device.
Disclosure of utility model
The utility model aims to provide a bottom air inlet structure of a steelmaking furnace, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a steelmaking stove bottom inlet structure, includes the landing leg, the top of landing leg is connected with two symmetrical support columns, with furnace body fixed connection between the top of two support columns, the below of furnace body is equipped with a fan, the fan gives vent to anger end and fourth gas-supply pipe intercommunication, the fourth gas-supply pipe runs through furnace body and air guide cover intercommunication, the bottom of fan passes through bracing piece and gas mixing mechanism fixed connection, the both sides of gas mixing mechanism are equipped with two air inlets, and every air inlet position all is connected the air feed jar through first gas-supply pipe, be equipped with the admission valve on the first gas-supply pipe, be equipped with a filter assembly on the first gas-supply pipe, the exhaust end at the top of gas mixing mechanism passes through third gas-supply pipe and fan inlet end intercommunication.
In one alternative: the filter assembly comprises a filter box, and a filter screen is arranged in the filter box.
In one alternative: the gas mixing mechanism comprises a gas mixing box arranged on a supporting rod, two symmetrical gas tanks are arranged in the gas mixing box, the exhaust ends of the gas tanks are communicated with second gas delivery pipes, the second gas delivery pipes penetrate through a baffle plate and are communicated with a trapezoid air outlet, a screw rod is arranged at the upper end of the baffle plate, one end of the screw rod is rotationally connected with one side of a furnace body, and the other end of the screw rod penetrates through the furnace body and is fixedly connected with the output end of a motor.
In one alternative: the air outlet is arranged to be of a conical structure.
In one alternative: the gas mixing box is internally provided with a gas leakage alarm.
In one alternative: an electronic pressure detector is arranged on one side of the gas tank.
Compared with the prior art, the utility model has the following beneficial effects:
According to the utility model, through the arranged gas mixing mechanism, two gases can be fully mixed, and the mixed gases can be expanded and mixed again after being sent into the gas guide cover by the fan, so that the combustion efficiency is improved, the combustion is more sufficient, the gases in the utility model are filtered and purified during gas supply, the attachment of magazines in the gases on the inner wall of a pipeline is avoided, and the gas guide effect of the pipeline is ensured.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Fig. 2 is a partially enlarged schematic structural view of the present utility model.
Fig. 3 is a schematic rear view of the present utility model.
Reference numerals annotate: 11. a support leg; 12. a support column; 13. a furnace body; 14. an electric valve; 15. a filter box; 16. a filter screen; 17. a gas mixing box; 18. a gas tank; 19. a second gas pipe; 20. a baffle plate; 21. an air outlet; 22. a screw rod; 23. a third gas pipe; 24. a blower; 25. a fourth gas pipe; 26. an air guide cover; 27. a first gas pipe; 28. a support frame; 29. and a motor.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
In one embodiment, as shown in fig. 1-3, a bottom air inlet structure of a steelmaking furnace comprises a supporting leg 11, wherein two symmetrical supporting columns 12 are connected to the top of the supporting leg 11, the tops of the two supporting columns 12 are fixedly connected with a furnace body 13, a fan 24 is arranged below the furnace body 13, the air outlet end of the fan 24 is communicated with a fourth air conveying pipe 25, the fourth air conveying pipe 25 penetrates through the furnace body 13 and is communicated with an air guide cover 26, the bottom of the fan 24 is fixedly connected with an air mixing mechanism through a supporting rod 28, two air inlets are arranged on two sides of the air mixing mechanism, each air inlet is connected with an air supply tank through a first air conveying pipe 27, an air inlet valve 14 is arranged on the first air conveying pipe 27, a filter assembly is arranged on the first air conveying pipe 27, the air outlet end of the top of the air mixing mechanism is communicated with the air inlet end of the fan 24 through a third air conveying pipe 23, and the air mixing mechanism can fully mix two gases.
The filter assembly comprises a filter box 15, a filter screen 16 is arranged in the filter box 15, and when gas enters the filter box 15 through the electric valve 14, the gas can be filtered through the filter screen 16, so that impurities in air which can affect the combustion effect can be effectively filtered.
The gas mixing mechanism comprises a gas mixing box 17 arranged on a supporting rod 28, two symmetrical gas tanks 18 are arranged in the gas mixing box 17, the exhaust ends of the gas tanks 18 are communicated with second gas pipes 19, the two second gas pipes 19 penetrate through a baffle plate 20 and are communicated with a trapezoid air outlet 21, a screw rod 22 is arranged at the upper end of the baffle plate 20, one end of the screw rod 22 is rotationally connected with one side of the furnace body 13, the other end of the screw rod 22 penetrates through the furnace body 13 and is fixedly connected with the output end of a motor 29, when the gas mixing mechanism is used, an electric valve is opened, two gases enter the corresponding gas tanks 18 through the first gas pipes 27 and are conveyed to the gas mixing box 17 through the second gas pipes 19, and the screw rod 22 is driven to rotate through a starting motor 29, so that the two gases are fully mixed, and the gas utilization rate is effectively improved.
The air outlet 21 is provided in a tapered structure, so that the air is discharged from the inside of the second air delivery pipe 19 and then released into the inside of the air mixing box 17 more quickly, thereby improving the air discharge speed.
The gas mixing box 17 is internally provided with a gas leakage alarm, and before gas leakage possibly occurs in the gas mixing box 17, an alarm is timely detected and sent out, so that accidents are prevented.
An electronic pressure detector is arranged on one side of the gas tank 18, the electronic pressure detector and the electric valve 14 are connected to a controller, the electronic pressure detector can detect the temperature and the pressure in the gas tank 18, the detection result is fed back to the controller, and the controller controls the opening and the closing of the electric valve 14.
Working principle: when the steelmaking furnace works, the exhaust ends of two gases are connected with the electric valve 14, then the electric valve 14 is opened, the fan 24 is started, the gases enter the filter assembly through the first gas pipe 27, are filtered through the filter screen 16 of the filter assembly, then enter the gas tank 18 through the second gas pipe 19, enter the gas mixing mechanism through the exhaust end of the third gas pipe 19, and then drive the screw rod 22 to rotate through the motor 29, so that the two gases in the gas mixing mechanism are fully mixed, the mixed gases are input into the gas guide cover 26 through the exhaust end of the fourth gas pipe 25, and the gas guide cover 26 uniformly discharges the gases into the furnace body 13 through a plurality of air outlet holes formed in the side face of the gas guide cover.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a steelmaking stove bottom inlet structure, includes landing leg (11), the top of landing leg (11) is connected with two symmetrical support columns (12), with furnace body (13) fixed connection between the top of two support columns (12), the below of furnace body (13) is equipped with a fan (24), fan (24) end and fourth gas-supply pipe (25) intercommunication give vent to anger, fourth gas-supply pipe (25) run through furnace body (13) and air guide cover (26) intercommunication, a serial communication port, the bottom of fan (24) is through bracing piece (28) and gas mixing mechanism fixed connection, the both sides of gas mixing mechanism are equipped with two air inlets, and every air inlet position is all through first gas-supply pipe (27) connection gas pitcher (18), be equipped with admission valve (14) on first gas-supply pipe (27), be equipped with a filter assembly on first gas-supply pipe (27), the exhaust end at the top of gas mixing mechanism is through third gas-supply pipe (23) and fan (24) inlet end intercommunication.
2. A bottom inlet structure of a steel furnace according to claim 1, characterized in that the filter assembly comprises a filter box (15), the filter box (15) being internally provided with a filter screen (16).
3. The steel-smelting furnace bottom air inlet structure according to claim 1, wherein the gas mixing mechanism comprises a gas mixing box (17) arranged on a supporting rod (28), two symmetrical air tanks (18) are arranged in the gas mixing box (17), the exhaust ends of the two air tanks (18) are communicated with a second air delivery pipe (19), the two second air delivery pipes (19) penetrate through a baffle plate (20) to be communicated with a trapezoid air outlet (21), a spiral rod (22) is arranged at the upper end of the baffle plate (20), one end of the spiral rod (22) is rotatably connected with one side of a furnace body (13), and the other end of the spiral rod penetrates through the furnace body (13) to be fixedly connected with the output end of a motor (29).
4. A bottom inlet structure of a steel furnace according to claim 3, characterized in that the outlet opening (21) is arranged in a conical configuration.
5. A bottom inlet structure of a steel-making furnace according to claim 3, characterized in that the gas mixing box (17) is internally provided with a gas leakage alarm.
6. A bottom inlet structure of a steel furnace according to claim 3, characterized in that one side of the gas tank (18) is provided with an electronic pressure detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322417288.XU CN221051908U (en) | 2023-09-06 | 2023-09-06 | Bottom air inlet structure of steelmaking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322417288.XU CN221051908U (en) | 2023-09-06 | 2023-09-06 | Bottom air inlet structure of steelmaking furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221051908U true CN221051908U (en) | 2024-05-31 |
Family
ID=91201575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322417288.XU Active CN221051908U (en) | 2023-09-06 | 2023-09-06 | Bottom air inlet structure of steelmaking furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221051908U (en) |
-
2023
- 2023-09-06 CN CN202322417288.XU patent/CN221051908U/en active Active
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