CN209362218U - A kind of desulfurizing agent feed system of dry desulfurization - Google Patents
A kind of desulfurizing agent feed system of dry desulfurization Download PDFInfo
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- CN209362218U CN209362218U CN201821717853.7U CN201821717853U CN209362218U CN 209362218 U CN209362218 U CN 209362218U CN 201821717853 U CN201821717853 U CN 201821717853U CN 209362218 U CN209362218 U CN 209362218U
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- desulfurizing agent
- intermediate bin
- envelope pump
- material envelope
- feed system
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Abstract
The utility model relates to a kind of desulfurizing agent feed systems of dry desulfurization, including passing through the sequentially connected raw material cabin of desulfurized powder conveyance conduit, classification flour mill, intermediate bin and material envelope pump, bale breaker is set above raw material cabin, the bottom of raw material cabin sets discharge valve one, in addition intermediate bin connects air-introduced machine；The discharge port of intermediate bin bottom is connect with the feed inlet of material envelope pump, and the discharge outlet is equipped with gate valve and star discharge valve two；The air inlet of material envelope pump connects roots blower, and the desulfurizing agent infeed end of material envelope pump connects external desulfurizer/flue.Intermediate bin is arranged after flour mill and realizes conveying of the desulfurizing agent into desulphurization system for storing the desulfurizing agent of grade qualification, and by material envelope pump and roots blower cooperation for the utility model, and the operation is stable, conveying capacity is big, and can realize the adjusting of feed quantity, energy-efficient.
Description
Technical field
The utility model relates to desulfurization by dry method field more particularly to a kind of desulfurizing agent feed systems of dry desulfurization.
Background technique
In recent years, the environmental problems such as acid rain, haze, photochemical fog bring people's production and living and seriously affect, state
Family is increasingly stringenter SOx and the NOx emission control for causing these environmental problems, develops the desulphurization denitration technology of economical and efficient
With highly important strategic importance.
Current denitrating technique comparative maturity, and technical field of desulfurization only has that wet desulfurizing process is more mature, but
Its drawback is also fairly obvious, i.e., generated waste water easily causes secondary pollution, takes up a large area, invests big, fortune after wet desulphurization
Row is at high cost.In dry desulfurizing process, it usually needs desulfurizing agent is milled online, is classified and then is conveyed, but is generally done
Method be the desulfurized powder of the grade qualification after grinding is sent directly into desulfurizer or flue to participate in Dry FGD, once it is de-
Flour mill breaks down, and will directly affect the normal work of desulphurization system.
Summary of the invention
The utility model provides a kind of desulfurizing agent feed system of dry desulfurization, and intermediate bin is arranged after flour mill and is used for
The desulfurizing agent of grade qualification is stored, and conveying of the desulfurizing agent into desulphurization system is realized by material envelope pump and roots blower cooperation,
Its operation is stable, conveying capacity is big, and can realize the adjusting of feed quantity, energy-efficient.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of desulfurizing agent feed system of dry desulfurization, including by the sequentially connected raw material cabin of desulfurized powder conveyance conduit,
It is classified flour mill, intermediate bin and material envelope pump, sets bale breaker above raw material cabin, the bottom of raw material cabin sets discharge valve one, intermediate bin
In addition air-introduced machine is connected；The discharge port of intermediate bin bottom is connect with the feed inlet of material envelope pump, and the discharge outlet is equipped with gate valve
With star discharge valve two；The air inlet of material envelope pump connects roots blower, and the desulfurizing agent infeed end of material envelope pump connects external desulfurization dress
Set/flue.
The warehouse of the raw material cabin is made of 304 stainless steel materials.
The motor spindle of unpacking sets sackholder.
The warehouse of the intermediate bin is made of 304 stainless steel materials.
Installation deduster and pulse oscillating device, warehouse bottom set Fluidizer at the top of the warehouse of the intermediate bin.
The star discharge valve two uses frequency conversion star discharge valve, controls its frequency, desulphurization control by Desulfurization Control Systems
In addition system connects the SO 2 sensor of desulfurizer/flue flue gas emission end setting.
The bottom of the material envelope pump sets fluidized plate, sets fluidized wind entrance, fluidized wind entrance in the material envelope pump of fluidized plate side
Place sets volume damper.
Compared with prior art, the utility model has the beneficial effects that
1) desulfurizing agent that intermediate bin is used to store grade qualification is set after flour mill, and passes through material envelope pump and roots blower
Conveying of the desulfurizing agent into desulphurization system is realized in cooperation, and the operation is stable, conveying capacity is big, and can realize the adjusting of feed quantity, section
It can be efficiently；
2) it is more conducive to duration operation, with intermediate bin is being feed node when anything crops up therefore under waiting emergency cases, is being robbed not delaying
It can guarantee that desulphurization system works normally when repairing maintenance, greatly improve working efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the desulfurizing agent feed system of dry desulfurization described in the utility model.
In figure: 1. bale breaker, 2. sackholder, 3. raw material cabin, 4. star discharge valve 1 is classified 6. intermediate bin of flour mill
7. 8. gate valve of air-introduced machine, 9. star discharge valve, 2 10. material envelope pump 11. 12. desulfurizers of roots blower/flue
→ Flow of Goods and Materials direction --- the flow direction of → wind
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of desulfurizing agent feed system of dry desulfurization described in the utility model, including it is defeated by desulfurized powder
The sequentially connected raw material cabin 3 of pipeline, classification flour mill 5, intermediate bin 6 and material envelope pump 10 are sent, the top of raw material cabin 3 sets bale breaker 1,
The bottom of raw material cabin 3 sets discharge valve 1, in addition intermediate bin 6 connects air-introduced machine 7；The discharge port and material envelope pump 10 of 6 bottom of intermediate bin
Feed inlet connection, the discharge outlet be equipped with gate valve 8 and star discharge valve 29；The air inlet of material envelope pump 10 connects Roots
The desulfurizing agent infeed end of blower 11, material envelope pump 10 connects external desulfurizer/flue 12.
The warehouse of the raw material cabin 3 is made of 304 stainless steel materials.
1 bottom of bale breaker sets sackholder 2.
The warehouse of the intermediate bin 6 is made of 304 stainless steel materials.
Installation deduster and pulse oscillating device, warehouse bottom set Fluidizer at the top of the warehouse of the intermediate bin 6.
The star discharge valve 29 uses frequency conversion star discharge valve, controls its frequency, desulphurization control by Desulfurization Control Systems
In addition system connects the SO 2 sensor of the flue gas emission end setting of desulfurizer/flue 12.
The bottom of the material envelope pump 10 sets fluidized plate, sets fluidized wind entrance, fluidized wind in the material envelope pump 10 of fluidized plate side
Inlet sets volume damper.
The primary raw material sodium bicarbonate of desulfurizing agent is usually coarse granule (d50 value is about 200 microns), to be reached when such as desulfurization
Higher reactivity, desulfurizing agent must have biggish specific surface area, therefore before injecting flue, sodium bicarbonate is necessary
It is ground to certain fineness.Such as removing SO2When sodium bicarbonate fineness must reach 20 μm of d90 <, and carbon when being used to remove HCL
The fineness of sour hydrogen sodium only requires 35 μm of d90 <.Desulfurizing agent, which reaches, reacts the SO that 95% or more can be removed when requiring2；HCL's goes
Except rate is even up to 99%.
In the utility model, desulfurizing agent jumbo bag is broken using bale breaker 1, is realized without dust work.The warehouse of raw material cabin 3 is adopted
It is made of 304 stainless steels, considerably increases service life.Sackholder 2, the lifting of desulfurizing agent jumbo bag are housed in the bottom of bale breaker 1
When being unpacked to bale breaker 1, the bottom end of desulfurizing agent jumbo bag is clamped by sackholder 2, controls discharging quantity.3 bottom of raw material cabin is equipped with
Desulfurizing agent raw material is transported to grading mill by the wind-force that the air-introduced machine 7 in system generates for controlling feed quantity by star discharge valve 1
In powder machine 5.
Desulfurizing agent raw material is ground in the lower part of classification flour mill 5 by the mutual shock with abrasive body, plant air
Enter the lower part of classification flour mill 5 along a tangential direction from the bottom of classification flour mill 5, and the desulfurizing agent after mill is delivered to top
Dynamic classification machine in.In dynamic classification machine, using the principle of dynamic balance suffered by material particles, suffered power be on the one hand by
Air entrained particles are on the other hand the centrifugal force as caused by grading wheel high-speed rotation inward through the drag force of grading wheel.Air
Classification flour mill 5 is left by grading wheel with small particles material, bulky grain, which is then graded to take turns to block, falls on classification flour mill 5
Continue to grind in lower part.
The desulfurizing agent of granularity qualification is sent into intermediate bin 6 by air-introduced machine 7 after classification flour mill 5 is ground stores, if anything crops up
Maintenance etc. causes classification flour mill 5 out of service, and the desulfurizing agent laid in intermediate bin 6, which can be realized, to be continued to be fed.The storehouse of intermediate bin 6
Body is made of 304 stainless steels, and Fluidizer is installed to prevent powder in installation deduster and pulse oscillating device at the top of warehouse, warehouse bottom
Dirt is hardened in warehouse.
In conventional desulfurizing agent feed system, desulfurizing agent be sent directly into after grinding machine is ground in desulfurizer or flue into
Row desulphurization reaction is conveyed by the wind-force that air-introduced machine generates, but the wind-force of air-introduced machine is limited, but conveying distance farther out when,
Multiple air-introduced machine relays are needed to convey.The utility model uses material envelope pump 10 to be fed main equipment, and roots blower 11 is power
Source significantly improves the conveying capacity of desulfurizing agent feed system.
Feed inlet is arranged at 10 top of material envelope pump, is equipped with the star-shaped discharge valve 29 of frequency conversion.Sulfur dioxide is installed to pass at chimney
Sensor, the content of sulfur dioxide discharged in flue gas that Desulfurization Control Systems are fed back according to SO 2 sensor, adjusts star-like unloads
The electric machine frequency of valve 29 is expected to control discharge quantity increase and decrease, and used medicament is controlled in the case where not influencing desulfuration efficiency
Amount, to achieve the purpose that save reagent cost.
There is a main pipe in material envelope pump 10, the both ends of main pipe are air inlet and air outlet (infeed end) respectively.It is leading
The outside of pipe sets adjuster for adjusting main pipe front opening size, seals the air quantity pumped in 10 with this to control into material.Sieve
Thatch blower 11 generate wind regime simultaneously by pneumatic feeding seal pump 10 tail portions, as fruit envelope pump 10 in main pipe be in open state if
Negative pressuren zone is formed in material envelope pump 10, wind directly enters desulfurizer/flue from the front end of material envelope pump 10 if main pipe is closed
In 12.The infeed end of material envelope pump 10 uses venturi principle, in air supply process, adjusts opening for main pipe according to the actual situation
Mouth degree makes to form a negative pressuren zone in infeed end inside material envelope pump 10, will pump intracorporal desulfurizing agent powder and steadily be sent into desulfurization dress
Set/flue 12 in.One piece of fluidized plate is installed in the bottom of material envelope pump 10, controls fluidized wind intake, desulfurizing agent powder by regulating valve
Material part powder in blanking process can drop to pump housing bottom and form accumulation.Fluidized wind is introduced in pump housing bottom as needed,
The powder circulation that pump housing bottom can be made to accumulate is blown afloat, so that pump housing bottom be avoided to accumulate powder.
Using a kind of desulfurizing agent feed system of dry desulfurization described in the utility model, the conveying distance energy of desulfurizing agent powder
Enough reach 300 meters, 20-30 meters of delivery head.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its design is subject to equivalent substitution or change, should be covered within the scope of the utility model.
Claims (7)
1. a kind of desulfurizing agent feed system of dry desulfurization, which is characterized in that including being sequentially connected by desulfurized powder conveyance conduit
Raw material cabin, classification flour mill, intermediate bin and material envelope pump, set bale breaker above raw material cabin, the bottom of raw material cabin sets discharge valve
One, in addition intermediate bin connects air-introduced machine；The discharge port of intermediate bin bottom is connect with the feed inlet of material envelope pump, and the discharge outlet is set
There are gate valve and star discharge valve two；The air inlet of material envelope pump connects roots blower, and the desulfurizing agent infeed end connection of material envelope pump is outer
Portion's desulfurizer/flue.
2. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the raw material cabin
Warehouse is made of 304 stainless steel materials.
3. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the bale breaker bottom
Portion sets sackholder.
4. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the intermediate bin
Warehouse is made of 304 stainless steel materials.
5. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the intermediate bin
Installation deduster and pulse oscillating device, warehouse bottom set Fluidizer at the top of warehouse.
6. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the star discharging
Valve two uses frequency conversion star discharge valve, controls its frequency by Desulfurization Control Systems, Desulfurization Control Systems in addition connect desulfurizer/
The SO 2 sensor of the flue gas emission end setting of flue.
7. a kind of desulfurizing agent feed system of dry desulfurization according to claim 1, which is characterized in that the material envelope pump
Bottom sets fluidized plate, sets fluidized wind entrance in the material envelope pump of fluidized plate side, fluidized wind inlet sets volume damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717853.7U CN209362218U (en) | 2018-10-23 | 2018-10-23 | A kind of desulfurizing agent feed system of dry desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717853.7U CN209362218U (en) | 2018-10-23 | 2018-10-23 | A kind of desulfurizing agent feed system of dry desulfurization |
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| CN209362218U true CN209362218U (en) | 2019-09-10 |
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ID=67838625
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821717853.7U Active CN209362218U (en) | 2018-10-23 | 2018-10-23 | A kind of desulfurizing agent feed system of dry desulfurization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116218579A (en) * | 2023-04-24 | 2023-06-06 | 羚羊环保科技有限公司 | Desulfurization and dehydration production device for high-sulfur high-moisture lignite |
-
2018
- 2018-10-23 CN CN201821717853.7U patent/CN209362218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116218579A (en) * | 2023-04-24 | 2023-06-06 | 羚羊环保科技有限公司 | Desulfurization and dehydration production device for high-sulfur high-moisture lignite |
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