CN207418796U - A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device - Google Patents
A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device Download PDFInfo
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- CN207418796U CN207418796U CN201720947908.2U CN201720947908U CN207418796U CN 207418796 U CN207418796 U CN 207418796U CN 201720947908 U CN201720947908 U CN 201720947908U CN 207418796 U CN207418796 U CN 207418796U
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- material tower
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Abstract
The utility model is related to a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding devices, gas diffusion tube road is set at the top of raw material tower, gas diffusion tube road upper gas exit sets speed change axial flow blower, and bottom is stretched into raw material tower, and electrically operated valve one is set on the gas diffusion tube road of raw material tower；The gas diffusion tube road of one top of electrically operated valve diffuses the ventilator cowling on branch pipe connection tower top distribution device by gas, and gas diffuses and electrically operated valve two is set in branch pipe；CO gas detecting instruments are set in raw material tower；Speed change axial flow blower, electrically operated valve one, electrically operated valve two and CO gas detecting instruments are connected respectively with control system.The utility model is not on the premise of coal base upright furnace and raw material tower normal work is influenced, the pernicious gas scurried into raw material tower can be diffused by high-altitude pernicious gas diffuse channel in time, ensure the personal safety of site operation personnel at the top of raw material tower, the accidents such as explosion, fire is avoided to occur.
Description
Technical field
The utility model is related to be related to Coal-based Direct Reduction Technologies field more particularly to a kind of direct reduced iron to erect
Stove raw material tower pernicious gas bleeding device.
Background technology
In coal base upright furnace produces Direct Reducing Iron Process, after furnace reduction is reacted, upright furnace furnace roof gas gathering system
Contain substantial amounts of CO in the tail gas of discharge.It is extremely strong poisonous gas in view of CO, if the toxic gas for being gathered in furnace roof is worn
It crosses receiving chute to scurry into top feed tower and escape from its top feed mouth, it is likely that make site operation personnel at the top of raw material tower
Into personal injury or even set off an explosion, the accidents such as fire.
The content of the invention
The utility model provides a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device, is not influencing coal base
On the premise of upright furnace and raw material tower work normally, can the pernicious gas scurried into raw material tower be harmful to gas by high-altitude in time
Body diffuse channel diffuses, and ensures the personal safety of site operation personnel at the top of raw material tower, and the accidents such as explosion, fire is avoided to occur.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device, the raw material tower bottom are connected by receiving chute
Direct reduced iron shaft furnace is connect, tower top distribution device is set at the top of raw material tower；Gas diffusion tube road is set at the top of the raw material tower, gas is put
Separate tube road upper gas exit sets speed change axial flow blower, and bottom is stretched into raw material tower, close to the gas diffusion tube road of raw material tower
On set electrically operated valve one；Branch pipe is diffused by gas and is connected on tower top distribution device in the gas diffusion tube road of one top of electrically operated valve
Ventilator cowling, and gas diffuses and electrically operated valve two is set in branch pipe；CO gas detecting instruments are set in raw material tower；Speed change axial flow blower, electricity
Movable valve one, electrically operated valve two and CO gas detecting instruments are connected respectively with control system.
The speed change axial flow blower is equipped with 2 operational taps of top gear and low or first gear.
In addition the control system connects sonic alarm.
Raw material tower top both sides are set respectively unloads quick-fried valve.
Form feed valve is set between the raw material tower and receiving chute.
The gas diffusion tube road is high-altitude gas diffusion tube road.
Compared with prior art, the beneficial effects of the utility model are：
1) on the premise of coal base upright furnace and raw material tower normal work is not influenced, will can scurry into time in raw material tower
Pernicious gas is diffused by high-altitude gas diffusion tube road, is ensured the personal safety of site operation personnel at the top of raw material tower, is avoided quick-fried
The accidents such as fried, fire occur；
2) high degree of automation；
3) speed change axial flow blower, which is according to circumstances divided into, runs at high speed and 2 kinds of working conditions of low-speed running, effectively reduces work
Energy consumption.
Description of the drawings
Fig. 1 is a kind of structural representation of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device described in the utility model
Figure.
In figure：It is electronic that 1. 2. gas diffusion tube road of speed change axial flow blower, 3. gas diffuses 4. electrically operated valve 1 of branch pipe
2 6. ventilator cowling of valve, 7. 9. control system of tower top distribution device 8.CO gas detecting instruments, 10. raw material tower 11. unloads quick-fried valve
12. 13. form feed valve of receiving chute
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device described in the utility model, described
10 bottom of raw material tower connects direct reduced iron shaft furnace by receiving chute 12, and 10 top of raw material tower sets tower top distribution device 7；It is described
10 top of raw material tower sets gas diffusion tube road 2, and 2 upper gas exit of gas diffusion tube road sets speed change axial flow blower 1, and bottom is stretched
Enter in raw material tower 10, electrically operated valve 1 is set on the gas diffusion tube road 2 of raw material tower 10；The gas of one 4 top of electrically operated valve
Diffuse channel 2 diffuses the ventilator cowling 6 on the connection tower top of branch pipe 3 distribution device 7 by gas, and gas diffuses in branch pipe 3 and sets electricity
Movable valve 25；CO gas detecting instruments 8 are set in raw material tower 10；Speed change axial flow blower 1, electrically operated valve 1, electrically operated valve 25 and CO
Gas detecting instrument 8 is connected respectively with control system 9.
The speed change axial flow blower 1 is equipped with 2 operational taps of top gear and low or first gear.
In addition the control system 9 connects sonic alarm.
The 10 top both sides of raw material tower are set respectively unloads quick-fried valve 11.
Form feed valve 13 is set between the raw material tower 10 and receiving chute 12.
The gas diffusion tube road 2 is high-altitude gas diffusion tube road.
Rotating speed is divided into two grades when speed change axial flow blower 1 described in the utility model works：Top gear and bottom gear.When CO gases
When the CO gas concentrations that survey meter 8 is detected inside raw material tower 10 are less than warning concentration, speed change axial flow blower 1 keeps low speed fortune
Turn.When the CO gas concentrations inside CO gas detecting instruments 8 detect raw material tower 10 are higher than warning concentration, speed change axial flow blower 1
Then become running at high speed, until the CO gas concentrations that CO gas detecting instruments 8 are detected inside raw material tower 10 are again dense less than guarding against
Degree.
When the CO gas concentrations that CO gas detecting instruments 8 are detected inside raw material tower 10 are higher than warning concentration, by alarm signal
Control system 9 is sent to, sonic alarm is started by control system 9, site operation personnel is notified to withdraw as early as possible.
Electrically operated valve 1 and electrically operated valve 25 are divided into two states when working：Standard-sized sheet and closed state.Work as variable-speed shaft
Flow fan 1 is in when running at high speed state, and the electrically operated valve 1 in gas diffusion tube road 2 keeps full-gear, and gas diffuses
Electrically operated valve 25 in branch pipe 3 remains off, and 10 inside pernicious gas of raw material tower leads to gas diffusion tube road 2 and puts at this time
It dissipates, and a large amount of extraneous airs enter raw material tower 10 from raw material tower feed inlet；When speed change axial flow blower 1 is in low-speed running state
When, the electrically operated valve 1 in gas diffusion tube road 2 remains off, and the electrically operated valve 25 that gas is diffused in branch pipe 3 is protected
Full-gear is held, diffusing the introducing gas of branch pipe 3 by gas with the extraneous air that material enters in tower top distribution device 7 at this time puts
Separate tube road 2 is diffused, and plays air seal to 10 feed inlet of raw material tower.
The warning concentration is set according to national relevant safety standard.
The form feed valve 13 plays air seal, and pernicious gas is prevented to enter from receiving chute 12 in raw material tower 10
Portion.
The above is only the preferable specific embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality
New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device, the raw material tower bottom are connected by receiving chute
Direct reduced iron shaft furnace, raw material tower top set tower top distribution device；It is characterized in that, set gas diffusion tube at the top of the raw material tower
Road, gas diffusion tube road upper gas exit set speed change axial flow blower, and bottom is stretched into raw material tower, close to the gas of raw material tower
Electrically operated valve one is set on diffuse channel；Branch pipe is diffused by gas and connects tower top cloth in the gas diffusion tube road of one top of electrically operated valve
Expect the ventilator cowling on device, and gas diffuses and electrically operated valve two is set in branch pipe；CO gas detecting instruments are set in raw material tower；Variable-speed shaft stream
Wind turbine, electrically operated valve one, electrically operated valve two and CO gas detecting instruments are connected respectively with control system.
2. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device according to claim 1, which is characterized in that
The speed change axial flow blower is equipped with 2 operational taps of top gear and low or first gear.
3. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device according to claim 1, which is characterized in that
In addition the control system connects sonic alarm.
4. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device according to claim 1, which is characterized in that
Raw material tower top both sides are set respectively unloads quick-fried valve.
5. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device according to claim 1, which is characterized in that
Form feed valve is set between the raw material tower and receiving chute.
6. a kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device according to claim 1, which is characterized in that
The gas diffusion tube road is high-altitude gas diffusion tube road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947908.2U CN207418796U (en) | 2017-08-01 | 2017-08-01 | A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947908.2U CN207418796U (en) | 2017-08-01 | 2017-08-01 | A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207418796U true CN207418796U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720947908.2U Active CN207418796U (en) | 2017-08-01 | 2017-08-01 | A kind of direct reduced iron shaft furnace raw material tower pernicious gas bleeding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267702A (en) * | 2017-08-01 | 2017-10-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of DRI shaft furnace raw material tower pernicious gas bleeding device |
-
2017
- 2017-08-01 CN CN201720947908.2U patent/CN207418796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267702A (en) * | 2017-08-01 | 2017-10-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of DRI shaft furnace raw material tower pernicious gas bleeding device |
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