CN210265238U - Energy-saving low-power-consumption raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation - Google Patents
Energy-saving low-power-consumption raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation Download PDFInfo
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- CN210265238U CN210265238U CN201921202088.XU CN201921202088U CN210265238U CN 210265238 U CN210265238 U CN 210265238U CN 201921202088 U CN201921202088 U CN 201921202088U CN 210265238 U CN210265238 U CN 210265238U
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Abstract
The utility model discloses a raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for energy-saving and low-power-consumption coal source power generation, which mainly comprises a raw gas fan, a down pipe and a dust transition bin; the descending pipe is obliquely arranged, the lower end of the descending pipe is communicated with the dust transition bin, the lower part of the side wall of the descending pipe is also provided with a horizontal straight pipe, and the other end of the horizontal straight pipe is connected with the crude gas fan.
Description
Technical Field
The utility model relates to a manganese-silicon alloy ore-smelting electric furnace gas purification field for energy-saving and low-power consumption coal source power generation, in particular to a raw gas fan protection device for gas dry purification.
Background
The process of dry gas purification of the manganese-silicon alloy ore-smelting electric furnace in the current market generally comprises the following steps: the manganese-silicon alloy submerged arc furnace → the water-cooling flue → the inertial sedimentation dust remover → the cooler → the raw gas fan → the bag-type dust remover → the clean gas fan → the user; however, the manganese-silicon alloy submerged arc furnace is influenced by factors such as raw materials, furnace conditions and the like, the fluctuation coefficient of coal gas is large, and the dust concentration reaches 80-150 g/Nm3And the dust contains MgO, CaO and other components, so that the dust is very easy to absorb moisture and calcify, scales are formed in the pipeline, once the scaling layer falls off in front of the crude gas fan due to vibration and other reasons, the crude gas fan is sucked, the blade of the crude gas fan is damaged, and the crude gas fan cannot normally operate, so that the whole dry-method gas purification system is stopped.
Chinese patent CN205744565U discloses a novel fan protection device, which has simple structure and convenient use, and the check valve can prevent gas from flowing backwards and avoid gas leakage and danger; the explosion venting valve can avoid damage to the fan due to overlarge pressure; and safety ring protects, can not waste the energy, what this patent was overcome is that too big damage that causes the fan of pressure.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a dry process coal gas purification raw gas fan protection device simple structure, with low costs, the performance is good.
For realizing the utility model provides the following technical scheme:
the manganese-silicon alloy ore-smelting electric furnace gas dry-method purification crude gas fan protection device for energy-saving and low-power consumption coal source power generation mainly comprises a crude gas fan, a downcomer and a dust transition bin; the down pipe is obliquely arranged, the lower end of the down pipe is communicated with the dust transition bin, a horizontal straight pipe is further arranged on the lower portion of the side wall of the down pipe, and the other end of the horizontal straight pipe is connected with the raw gas fan.
Preferably, a check louver fan is further arranged at the joint of the horizontal straight pipe and the downcomer.
Preferably, the joint of the lower end of the downcomer and the dust transition bin is arc-shaped.
Preferably, the lower part of the dust transition bin is conical, the bottom of the dust transition bin is also provided with a transition pipe, and a pneumatic metal sealing butterfly valve is arranged between the dust transition bin and the transition pipe.
Preferably, the side wall of the transition pipe is provided with a protective gas inlet pipe, and the bottom of the transition pipe is provided with a star-shaped discharger.
The utility model has the advantages that:
the device is provided with a downcomer and a dust transition bin, once a scaling layer falls off in front of the crude gas fan due to vibration and other reasons, the scaling layer enters the dust transition bin to be collected, a pneumatic metal sealing butterfly valve is opened, a star-shaped discharger is started to discharge ash, the transition section is simultaneously filled with low-pressure nitrogen for protection, the dust enters the closed plate chain ash conveyor to be conveyed to a dust main bin, a non-return louver fan is arranged, the scaling layer is further prevented from falling off and entering the crude gas fan, and the whole device is simple in structure, low in cost and good in performance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a raw gas fan, 2 is a downcomer, 3 is a dust transition bin, 4 is a horizontal straight pipe, 5 is a pneumatic metal sealing butterfly valve, 6 is a transition pipe, 7 is a protective gas inlet pipe, and 8 is a star-shaped discharger.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The manganese-silicon alloy ore-smelting electric furnace gas dry-method purification crude gas fan protection device for energy-saving and low-power-consumption coal source power generation mainly comprises a crude gas fan 1, a downcomer 2 and a dust transition bin 3; the device is characterized in that the descending pipe 2 is obliquely arranged, the lower end of the descending pipe 2 is communicated with the dust transition bin 3, a horizontal straight pipe 4 is further arranged on the lower portion of the side wall of the descending pipe 2, and the other end of the horizontal straight pipe 4 is connected with the raw gas fan 1.
Furthermore, a non-return louver fan is arranged at the joint of the horizontal straight pipe 4 and the descending pipe 2.
Further, the connection part of the lower end of the downcomer 2 and the dust transition bin 3 is arc-shaped.
Further, 3 lower parts in dust transition storehouse are the toper, and 3 bottoms in dust transition storehouse still set up transition pipe 6, set up pneumatic metal seal butterfly valve 5 between dust transition storehouse 3 and the transition pipe 6.
Furthermore, the side wall of the transition pipe 6 is provided with a protective gas inlet pipe 7, and the bottom of the transition pipe is provided with a star-shaped discharger 8.
This protection device utilizes downcomer 2 and dust transition storehouse 3 that the slope set up, the scaling layer that drops gets into dust transition storehouse 3 along downcomer 2, the scaling layer that prevents to drop gets into coarse coal gas fan 1, influence the normal work of system, simultaneously in order to ensure the safe operation of system, set up protective gas intake pipe 7 at the transition pipe lateral wall, it protects to fill nitrogen gas, still set up non return louver fan in the junction of horizontal straight tube 4 and downcomer 2, further avoid the scaling layer that drops to get into coarse coal gas fan 1, whole protection device simple structure, need not to change original processing system, and is with low costs, and good performance.
The embodiments described above are only a part of the embodiments of the present invention, and not all of them. 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.
Claims (5)
1. The manganese-silicon alloy ore-smelting electric furnace gas dry purification raw gas fan protection device for energy-saving and low-power consumption coal source power generation is characterized in that: mainly comprises a raw gas fan, a downcomer and a dust transition bin; the down pipe is obliquely arranged, the lower end of the down pipe is communicated with the dust transition bin, a horizontal straight pipe is further arranged on the lower portion of the side wall of the down pipe, and the other end of the horizontal straight pipe is connected with the raw gas fan.
2. The raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation of energy-saving and low-power-consumption coal sources according to claim 1, characterized in that: and a non-return louver fan is also arranged at the joint of the horizontal straight pipe and the down pipe.
3. The raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation of energy-saving and low-power-consumption coal sources according to claim 1, characterized in that: the joint of the lower end of the downcomer and the dust transition bin is arc-shaped.
4. The raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation of energy-saving and low-power-consumption coal sources according to claim 1, characterized in that: the dust transition bin lower part is the toper, and dust transition bin bottom still sets up the transition pipe, set up pneumatic metal seal butterfly valve between dust transition bin and the transition pipe.
5. The raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation of energy-saving and low-power-consumption coal sources according to claim 4, characterized in that: the transition pipe lateral wall sets up the protective gas intake pipe, and the bottom sets up star type tripper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921202088.XU CN210265238U (en) | 2019-07-29 | 2019-07-29 | Energy-saving low-power-consumption raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921202088.XU CN210265238U (en) | 2019-07-29 | 2019-07-29 | Energy-saving low-power-consumption raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265238U true CN210265238U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921202088.XU Active CN210265238U (en) | 2019-07-29 | 2019-07-29 | Energy-saving low-power-consumption raw gas fan protection device for dry purification of manganese-silicon alloy ore-smelting electric furnace gas for power generation |
Country Status (1)
| Country | Link |
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| CN (1) | CN210265238U (en) |
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2019
- 2019-07-29 CN CN201921202088.XU patent/CN210265238U/en active Active
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