CN206814026U - A kind of pulverized limestone induction system for calcium injection and desulfurization boiler - Google Patents
A kind of pulverized limestone induction system for calcium injection and desulfurization boiler Download PDFInfo
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- CN206814026U CN206814026U CN201720157768.9U CN201720157768U CN206814026U CN 206814026 U CN206814026 U CN 206814026U CN 201720157768 U CN201720157768 U CN 201720157768U CN 206814026 U CN206814026 U CN 206814026U
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- China
- Prior art keywords
- conveyance conduit
- induction system
- feed bin
- conveying worm
- pulverized limestone
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a kind of pulverized limestone induction system for calcium injection and desulfurization boiler,Including limestone powder bin,Control device and conveyance conduit,The first end of transfer passage is connected with limestone powder bin,Second end of conveyance conduit connects with boiler,The bottom of limestone powder bin is provided with hand operated gate valve,The output end of hand operated gate valve is connected with metering feed bin,The output end of metering feed bin is provided with blow-off valve,Blow-off valve output end is connected with blanking feed bin,Induction system includes conveying worm,The first end of conveying worm is connected with blanking feed bin,Second end of conveying worm is connected with conveyance conduit,Conveying worm is provided with variable-frequency motor,Conveyance conduit is provided with conveying source of the gas main pipe,For providing source of the gas for conveyance conduit,Conveying source of the gas main pipe is provided with pressure transmitter and pressure switch,It is simple in construction,It is safe,Being capable of continuous service,And there is the quick ability for starting and meeting load variations,Service life is grown,Cost is low.
Description
Technical field
Boiler feeds technical field is the utility model is related to, more particularly, to a kind of pulverized limestone for calcium injection and desulfurization boiler
Induction system.
Background technology
Dry flue gas desulphurization technology refers to the flue gas desulfurization skill that desulfurization absorption and product processing are carried out in the dry state
Art, at present, develop kinds of processes, including sorbent injection technology, electrical method dry type desulfurizing technology and dry type catalytic desulfurization technology,
In-furnace calcium spraying is that one of which applies wide sorbent injection technology.
In-furnace calcium spraying is that dry absorbent (agstone, calcium hydroxide or dolomite etc.) is directly sprayed onto the gas of boiler furnace
In stream, absorbent is sintered into active CaO particles by the heat in burner hearth, and these particles react with the SO2 in flue gas
Generation calcium sulfate (CaSO4) and calcium sulfite (CaSO3), these reaction products and flying dust are captured by cleaner together.
Existing agstone induction system is complicated, and security is low, easy interrupt operation, every time restarting, it is necessary to
Longer time, it is difficult to meet load variations, service life is short, and cost is high, it is therefore necessary to is improved.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of stone for calcium injection and desulfurization boiler
Ashes induction system, it is simple in construction, safe.
To achieve these goals, technical scheme is a kind of stone for calcium injection and desulfurization boiler used by the utility model
Ashes induction system, including limestone powder bin, control device and conveyance conduit, first end and the limestone powder bin of transfer passage connect
Connect, the second end of conveyance conduit connects with boiler, and the bottom of limestone powder bin is provided with hand operated gate valve, hand operated gate valve it is defeated
Go out end and be connected with metering feed bin, the output end for measuring feed bin is provided with blow-off valve, and blow-off valve output end is connected with blanking feed bin, defeated
Send system to include conveying worm, the first end of conveying worm is connected with blanking feed bin, the second end of conveying worm with it is defeated
Pipeline is sent to connect, conveying worm is provided with variable-frequency motor, and conveyance conduit is provided with conveying source of the gas main pipe, for for conveyance conduit
Source of the gas is provided, conveying source of the gas main pipe is provided with pressure transmitter and pressure switch.
In further technical scheme, the output end of the hand operated gate valve is provided with air-actuated feeding valve, air-actuated feeding valve
It is connected with metering feed bin.
In further technical scheme, the conveying worm is provided with charging aperture and air inlet, charging aperture and blanking material
Storehouse is connected, and the input of air inlet is connected with variable-frequency motor, and charging aperture connects with air inlet, and charging aperture and air inlet pass through spiral
Conveyer is connected with conveyance conduit respectively.
In further technical scheme, the blow-off valve selects elastomer connector.
In further technical scheme, the conveyance conduit is provided with compensator, for eliminating the stroke to expand with heat and contract with cold.
In further technical scheme, the conveyance conduit is provided with pipeline distributor, and conveyance conduit is divided into two, pipe
Road distributor is connected to two delivery branch pipes, and two delivery branch pipes connect with boiler respectively.
In further technical scheme, the pipeline distributor is manufactured from the high-abrasive material of lined ceramicses.
In further technical scheme, the conveyance conduit is manufactured from seamless steel pipe.
In further technical scheme, the hand operated gate valve, metering feed bin, conveying worm, pressure transmitter and pressure
Power switch electrically connects with control device respectively.
In further technical scheme, the metering feed bin is internally provided with weighing device, and the blanking feed bin is provided with
The pressure transmitter.
After said structure, the utility model is compared to the prior art advantageously：It is simple in construction, security
Height, can continuous service, and have the quick ability for starting and meeting load variations, service life length, cost is low.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation of pulverized limestone induction system for calcium injection and desulfurization boiler of the utility model.
In figure：
1- limestone powder bins, 2- conveyance conduits, 3- hand operated gate valves, 4- meterings feed bin, 5- conveying worms, 6- conveying gas
Source main pipe, 7- pipeline distributors, 8- boilers, 9- air inlets.
Embodiment
As described below is only preferred embodiment of the present utility model, does not therefore limit protection model of the present utility model
Enclose.
Embodiment, as shown in Figure 1, a kind of pulverized limestone induction system for calcium injection and desulfurization boiler 8, including limestone powder bin
1st, control device and conveyance conduit 2, the first end of transfer passage are connected with limestone powder bin 1, the second end of conveyance conduit 2 and pot
Stove 8 connects, and the bottom of limestone powder bin 1 is provided with hand operated gate valve 3, and the output end of hand operated gate valve 3 is connected with metering feed bin
4, the output end of metering feed bin 4 is provided with blow-off valve, and blow-off valve output end is connected with blanking feed bin, and induction system includes spiral transferring
Machine 5 is sent, the first end of conveying worm 5 is connected with blanking feed bin, and the second end of conveying worm 5 is connected with conveyance conduit 2, spiral shell
Rotation conveyer 5 is provided with variable-frequency motor, and conveyance conduit 2 is provided with conveying source of the gas main pipe 6, for providing source of the gas for conveyance conduit 2,
Conveying source of the gas main pipe 6 is provided with pressure transmitter and pressure switch.It is simple in construction, it is safe, can continuous service, and have
The quick ability for starting and meeting load variations, service life length, cost are low.
The output end of hand operated gate valve 3 is provided with air-actuated feeding valve, and air-actuated feeding valve is connected with metering feed bin 4.
Conveying worm 5 is provided with charging aperture and air inlet 9, and charging aperture is connected with blanking feed bin, the input of air inlet 9
Be connected with variable-frequency motor, charging aperture connects with air inlet 9, charging aperture and air inlet 9 by conveying worm 5 respectively with delivery pipe
Road 2 connects.Material in blanking feed bin, into conveying worm 5, feeding coal can be adjusted within the specific limits.In spiral transferring
Send the discharging opening of machine 5 to be mixed with conveying compressed air, be transported in conveyance conduit 2,
Blow-off valve selects elastomer connector.Elastomer connector is pressure-resistant, wear-resisting, simple in construction, service life length.
Conveyance conduit 2 is provided with compensator, for eliminating the stroke to expand with heat and contract with cold.
Conveyance conduit 2 is provided with pipeline distributor 7, and conveyance conduit 2 is divided into two, and pipeline distributor 7 is connected to
Two delivery branch pipes, two delivery branch pipes connect with boiler 8 respectively.Pipeline distributor 7 is manufactured from the high-abrasive material of lined ceramicses.It is logical
Control device monitoring conveyance conduit 2, the discharge pressure of conveying worm 5 are crossed, when discharge pressure is higher than setting value, is inclined with plugging
To then stoppage in transit conveying worm 5, stops charging, continues to purge pipeline, until pipeline pressure is down to the lower limit of setting, opens
Conveying worm 5 continues to convey.
Conveyance conduit 2 is manufactured from seamless steel pipe.
Hand operated gate valve 3, metering feed bin 4, conveying worm 5, pressure transmitter and pressure switch respectively with control device
Electrical connection.
Metering feed bin 4 is internally provided with weighing device, and the blanking feed bin is provided with the pressure transmitter.
Reach the purpose for changing conveying capacity by variable-frequency motor.Variable-frequency motor rotating speed is according to the lime stone of the measuring chute of upstream
Changes in flow rate Instantaneous Control.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, there will be changes, this specification content should not be construed as in specific embodiments and applications
To limitation of the present utility model.
Claims (10)
1. a kind of pulverized limestone induction system for calcium injection and desulfurization boiler, including limestone powder bin, control device and conveyance conduit,
The first end of transfer passage is connected with limestone powder bin, and the second end of conveyance conduit connects with boiler, it is characterised in that：Lime stone
The bottom of powder cabin is provided with hand operated gate valve, and the output end of hand operated gate valve is connected with metering feed bin, measures the output end of feed bin
It is provided with blow-off valve, blow-off valve output end is connected with blanking feed bin, and induction system includes conveying worm, and the of conveying worm
One end is connected with blanking feed bin, and the second end of conveying worm is connected with conveyance conduit, and conveying worm is provided with variable-frequency motor,
Conveyance conduit is provided with conveying source of the gas main pipe, and for providing source of the gas for conveyance conduit, conveying source of the gas main pipe is provided with pressure inverting
Device and pressure switch.
A kind of 2. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 1, it is characterised in that：It is described
The output end of hand operated gate valve is provided with air-actuated feeding valve, and air-actuated feeding valve is connected with metering feed bin.
A kind of 3. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 2, it is characterised in that：It is described
Conveying worm is provided with charging aperture and air inlet, and charging aperture is connected with blanking feed bin, the input and variable-frequency motor of air inlet
Connection, charging aperture are connected with air inlet, and charging aperture and air inlet are connected with conveyance conduit respectively by conveying worm.
A kind of 4. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 1, it is characterised in that：It is described
Blow-off valve selects elastomer connector.
A kind of 5. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 3, it is characterised in that：It is described
Conveyance conduit is provided with compensator, for eliminating the stroke to expand with heat and contract with cold.
A kind of 6. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 5, it is characterised in that：It is described
Conveyance conduit is provided with pipeline distributor, and conveyance conduit is divided into two, and pipeline distributor is connected to two delivery branch pipes, and two
Delivery branch pipe connects with boiler respectively.
A kind of 7. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 6, it is characterised in that：It is described
Pipeline distributor is manufactured from the high-abrasive material of lined ceramicses.
A kind of 8. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 7, it is characterised in that：It is described
Conveyance conduit is manufactured from seamless steel pipe.
A kind of 9. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 8, it is characterised in that：It is described
Hand operated gate valve, metering feed bin, conveying worm, pressure transmitter and pressure switch electrically connect with control device respectively.
A kind of 10. pulverized limestone induction system for calcium injection and desulfurization boiler according to claim 9, it is characterised in that：Institute
State metering feed bin and be internally provided with weighing device, the blanking feed bin is provided with the pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157768.9U CN206814026U (en) | 2017-02-21 | 2017-02-21 | A kind of pulverized limestone induction system for calcium injection and desulfurization boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157768.9U CN206814026U (en) | 2017-02-21 | 2017-02-21 | A kind of pulverized limestone induction system for calcium injection and desulfurization boiler |
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| Publication Number | Publication Date |
|---|---|
| CN206814026U true CN206814026U (en) | 2017-12-29 |
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| CN201720157768.9U Active CN206814026U (en) | 2017-02-21 | 2017-02-21 | A kind of pulverized limestone induction system for calcium injection and desulfurization boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079776A (en) * | 2017-11-24 | 2018-05-29 | 北京绿岩环保科技有限责任公司 | A kind of new dry process rotary kiln catalytic desulfurizing agent and its preparation and application |
-
2017
- 2017-02-21 CN CN201720157768.9U patent/CN206814026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079776A (en) * | 2017-11-24 | 2018-05-29 | 北京绿岩环保科技有限责任公司 | A kind of new dry process rotary kiln catalytic desulfurizing agent and its preparation and application |
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