CN208145761U - A kind of in-furnace calcium spraying dry method desulfuration system - Google Patents
A kind of in-furnace calcium spraying dry method desulfuration system Download PDFInfo
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- CN208145761U CN208145761U CN201820267067.5U CN201820267067U CN208145761U CN 208145761 U CN208145761 U CN 208145761U CN 201820267067 U CN201820267067 U CN 201820267067U CN 208145761 U CN208145761 U CN 208145761U
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- frequency conversion
- dry method
- spraying dry
- nozzle
- conversion type
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005507 spraying Methods 0.000 title claims abstract description 17
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 15
- 239000011575 calcium Substances 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 235000019738 Limestone Nutrition 0.000 claims abstract description 16
- 239000006028 limestone Substances 0.000 claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 230000003009 desulfurizing effect Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000007616 round robin method Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A kind of in-furnace calcium spraying dry method desulfuration system belongs to boiler flue gas desulfurization Treatment process field.Including lime stone feed bin, frequency conversion type spiral metering conveyor, roots blower and boiler, the feed opening of the lime stone feed bin is connected to the feed inlet of frequency conversion type spiral metering conveyor, and electronic insertion plate door is equipped between lime stone feed bin and frequency conversion type spiral metering conveyor, the discharge port of frequency conversion type spiral metering conveyor is right against the import in intermediate buffering storehouse, the outlet in intermediate buffering storehouse is connected to by rotary sealing material-feeding valve with venturi feeder, the venturi feeder is also connected to roots blower simultaneously and is connected to pipeline distributor, pipeline distributor, which by pipeline is connected to nozzle with nozzle, to be inlayed and is fixed on boiler wall.Using anti-blocking design, solve the problems, such as system jams.Wear-resistant material is used again and extends service life of equipment, while having investment small, is taken up little area, is improved desulfuration efficiency.
Description
Technical field
The utility model belongs to boiler flue gas desulfurization Treatment process field, and in particular to arrives a kind of in-furnace calcium spraying dry desulfurization
System.
Background technique
Flue gas desulfurization technique have developed rapidly both at home and abroad at present, and the flue gas desulfurization technique for obtaining business application has tens kinds, presses
The state of desulfurizing agent and desulfurization reaction product mainly has the technologies such as wet process, dry desulfurization, respectively there is advantage and disadvantage.
Common wet desulfurizing process device is mainly prepared in alkaline desulfurizing agent solution spray to desulfurizing tower with water and is carried out
Flue gas desulfurization.Wet desulfurizing process device mainly has:Limestone/lime-gypsum method, seawater method, Dual alkali, sub- sodium round-robin method,
Magnesium oxide method etc..Wet desulfurizing process device major advantage is desulfuration efficiency height, and desulfuration efficiency is up to 99% or more, Operation and Maintenance
Simply, major defect is that one-time investment is high, takes up a large area, and operating cost is high, and water consumption is big, and desulfurization slag needs dehydration
Deng.Common dry flue gas desulphurization device has in-furnace calcium spraying method, active carbon adsorption, Electron-beam irradiation, charged Dry absorption
Agent gunite, metal oxide doctor treatment etc..The disadvantage is that General reactions speed is slow, desulfurization degree is low, and especially dry desulfurization device is general
Store-through is in system jams wear problem, and stability, the reliability of equipment operation be not high, and the service life is shorter, limits such method
Application.
Summary of the invention
The utility model aim provides a kind of in-furnace calcium spraying dry method desulfuration system, is suitable for power plant cycle fluidized-bed combustion boiler and arranges
The dry desulfurization for putting flue gas is administered, and the deficiency of prior art problem is solved.
The utility model is achieved in the following ways a kind of in-furnace calcium spraying dry method desulfuration system, including lime building stones
Storehouse, frequency conversion type spiral metering conveyor, roots blower and boiler.The feed opening and frequency conversion type spiral meter of the lime stone feed bin
The feed inlet connection of conveyer is measured, and is equipped with electronic plate between lime stone feed bin and frequency conversion type spiral metering conveyor
Door.The discharge port of frequency conversion type spiral metering conveyor is right against the import in intermediate buffering storehouse, and the outlet in intermediate buffering storehouse passes through rotation
Turn seal feeding valve to be connected to venturi feeder, wherein setting intermediate buffering storehouse and rotatory sealing are given before venturi feeder
Expect that valve is to avoid roots blower high-pressure blowing-in to lime stone feed bin before, frequency conversion type spiral metering conveyor, electronic insertion plate door string
Wind causes material to reveal, while being fed using frequency conversion type spiral metering conveyor control feeding coal using isometric(al) squash type, under
Material is uniform, accurate measurement.The venturi feeder is also connected to roots blower simultaneously and is connected to pipeline distributor, pipeline point
Orchestration, which by pipeline is connected to nozzle with nozzle, to be inlayed and is fixed on boiler wall.The object of roots blower drive rotary sealing material-feeding valve
Material, into venturi feeder, transports material in pipeline distributor.The big object of air quantity is using roots blower spraying of material
Expect small, forming dilute phase and spraying can guarantee that material is continuously conveyed and does not block.
The venturi feeder upper end is equipped with feed inlet, is internally provided with the lower baffle plate matched with feed inlet and upper
Baffle, the overhead gage are mounted on inner wall by adjustable connecting components, and overhead gage adjustable angle controls the flow of material
System.The left end of venturi feeder is equipped with air inlet mouth, and the lower end for entering the wind mouth is taper, and air outlet is located at overhead gage and lower block
Lower section between plate makes it generate negative pressuren zone under ventilation state, and material is pumped into burner hearth by air-flow, thus avoids the stifled of material
Plug.In addition, air compensation device is increased at air inlet mouth, to prevent compressed air is replenished in time in the insufficient situation of locking system air feed,
The normal operation of guarantee system.The right end of venturi feeder is equipped with discharge port.Venturi feeder is mainly by agstone
It is treated as loose, suspension, when agstone enters venturi feeder, the quilt under the high-pressure blast effect of roots blower supply
It dispels and quick flow forward, by the variation of one section of caliber, makes what bulk material sprayed to put more effort, sprayed by outlet.
The lower end of pipeline distributor is equipped with the feeding port of taper, and material enters from the lower part of pipeline distributor, pipeline distribution
Top inside device is spherical, and the surrounding of pipeline distributor averagely arranges four branched pipes, this structure can guarantee that material is equal
Even is assigned in each branch pipe, guarantees that material can be evenly distributed in each pipeline, while pipeline distributor is using wear-resisting
Material is made, and increases the service life of pipeline distributor.
The nozzle preferably uses high temperature resistant and wear-resistant material, and number is 2, and one of nozzle is fixedly mounted on
At the 2/5 of boiler height, another nozzle is fixedly mounted at the 3/5 of boiler height.
The venturi feeder preferably uses wear-resistant material.
The beneficial effects of the utility model are that tectonic sieving is reasonable, carry out reasonable Arrangement to whole system, are set using anti-blocking
Meter, solves the problems, such as system jams.Wear-resistant material is used again and extends service life of equipment, while having investment small, land occupation
It is small, improve desulfuration efficiency.
Detailed description of the invention
Fig. 1 is total system schematic diagram；
Fig. 2 is venturi feeder structure chart；
Fig. 3 is pipeline distributor structure chart；
As described in Fig. 1 to Fig. 3, lime stone feed bin（1）, electronic insertion plate door（2）, frequency conversion type spiral metering conveyor（3）, in
Between surge bunker（4）, rotary sealing material-feeding valve（5）, venturi feeder（6）, roots blower（7）, pipeline distributor（8）, nozzle
（9）, boiler（10）, feed inlet（11）, overhead gage（12）, lower baffle plate（13）, enter the wind mouth（14）, discharge port（15）, feeding port
（16）, branch pipe（17）, nose（18）.
Specific embodiment
A kind of in-furnace calcium spraying dry method desulfuration system, including lime stone feed bin 1, electronic insertion plate door 2, the metering of frequency conversion type spiral are defeated
Send machine 3, intermediate buffering storehouse 4, rotary sealing material-feeding valve 5, venturi feeder 6, roots blower 7, pipeline distributor 8, nozzle 9,
Boiler 10.Lime stone feed bin 1 is connected to by electronic insertion plate door 2 and pipeline with frequency conversion type spiral metering conveyor 3, frequency conversion type spiral
The discharge port of metering conveyor 3 is connected to the feed inlet face in intermediate buffering storehouse 4, and the feed opening in intermediate buffering storehouse 4 passes through rotation
Seal feeding valve 5 is connected to the feed inlet 11 of venturi feeder 6, is equipped with inside venturi feeder 6 and is matched with feed inlet 11
The lower baffle plate 13 and overhead gage 12 of conjunction, the overhead gage 12 are mounted on inner wall by adjustable connecting components, 12 angle of overhead gage
The adjustable flow to material controls.The left end of venturi feeder 6 is equipped with air inlet mouth 14, and the lower end of air inlet mouth 14 is cone
Shape, and lower section of the air outlet between overhead gage 12 and lower baffle plate 13.Roots blower 7 is supplied by air inlet mouth 14 and injecting type
Glassware 6 is connected to, and the discharge port 15 of venturi feeder 6 is connected to the feeding port 16 of pipeline distributor 8, inside pipeline distributor 8
Top be spherical nose 18, the branch pipe 17 on pipeline distributor 8 is connected to nozzle 9, and nozzle 9 is fixed on boiler 10.
The number of nozzle 9 is 2, and one of nozzle 9 is fixedly mounted at the 2/5 of 10 height of boiler, another nozzle 9
It is fixedly mounted at the 3/5 of 10 height of boiler.
The venturi feeder 6 uses wear-resistant material.
The pipeline distributor 8 uses wear-resistant material.
The nozzle 9 uses high temperature resistant and wear-resistant material.
Agstone flows through electronic insertion plate door 2 by lime stone feed bin 1, then passes through frequency conversion spiral metering conveyor 3 for stone
Lime stone is sent into intermediate buffering storehouse 4, then falls into rotary sealing material-feeding valve 5, and uniformly that agstone actually required is defeated
It is sent in venturi feeder 6, agstone blows advance by the wind that roots blower 7 supplies, by pipeline distributor 8 and nozzle
9 finally enter in boiler 10, and agstone reacts in burner hearth with the SO2 that generates in combustion of fire coal completion one
Secondary transmission process.Spiral measures batcher 3 by Frequency Converter Control revolving speed, and then controls the size of lime stone amount.
Claims (7)
1. a kind of in-furnace calcium spraying dry method desulfuration system, including lime stone feed bin（1）, frequency conversion type spiral metering conveyor（3）, Roots
Blower（7）And boiler（10）, which is characterized in that the lime stone feed bin（1）Feed opening and frequency conversion type spiral metering convey
Machine（3）Feed inlet connection, and be located at lime stone feed bin（1）With frequency conversion type spiral metering conveyor（3）Between be equipped with it is electronic
Insertion plate door（2）, frequency conversion type spiral metering conveyor（3）Discharge port be right against intermediate buffering storehouse（4）Import, intermediate buffering storehouse
（4）Outlet pass through rotary sealing material-feeding valve（5）With venturi feeder（6）Connection, the venturi feeder（6）Simultaneously
Also it is connected to roots blower（7）And pipeline distributor（8）Connection, pipeline distributor（8）Pass through pipeline and nozzle（9）Connection, spray
Mouth（9）It inlays and is fixed on boiler（10）On wall.
2. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1, which is characterized in that the injecting type feed
Device（6）Upper end is equipped with feed inlet, is internally provided with and feed inlet（11）The lower baffle plate matched（13）And overhead gage（12）, described
Overhead gage（12）It is mounted on inner wall by adjustable connecting components, venturi feeder（6）Left end be equipped with air inlet mouth（14）, mend
Wind apparatus is mounted on air inlet mouth（14）On, enter the wind mouth（14）Lower end be taper, and air outlet is located at overhead gage（12）With under
Baffle（13）Between lower section, venturi feeder（6）Right end be equipped with discharge port（15）.
3. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1, which is characterized in that pipeline distributor（8）'s
Lower end is equipped with the feeding port of taper（16）, pipeline distributor（8）Surrounding averagely arrange four branched pipes（17）, it is located at pipeline
Distributor（8）Internal top end is equipped with spherical nose（18）.
4. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1, which is characterized in that nozzle（9）Number be 2
It is a, one of nozzle（9）It is fixedly mounted on boiler（10）At the 2/5 of height, another nozzle（9）It is fixedly mounted on boiler
（10）At the 3/5 of height.
5. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1 or 2, which is characterized in that the injecting type
Loader（6）Using wear-resistant material.
6. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1 or 3, which is characterized in that the pipeline point
Orchestration（8）Using wear-resistant material.
7. a kind of in-furnace calcium spraying dry method desulfuration system according to claim 1 or 4, which is characterized in that the nozzle（9）
Using high temperature resistant and wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820267067.5U CN208145761U (en) | 2018-02-24 | 2018-02-24 | A kind of in-furnace calcium spraying dry method desulfuration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820267067.5U CN208145761U (en) | 2018-02-24 | 2018-02-24 | A kind of in-furnace calcium spraying dry method desulfuration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208145761U true CN208145761U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820267067.5U Active CN208145761U (en) | 2018-02-24 | 2018-02-24 | A kind of in-furnace calcium spraying dry method desulfuration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798514A (en) * | 2019-01-31 | 2019-05-24 | 云南农业大学 | A kind of resistive connection slag biomass combustion furnace spray apparatus for ash and biomass combustion furnace |
| CN117619133A (en) * | 2024-01-25 | 2024-03-01 | 山东力净环保科技有限公司 | Desulfurizing agent injection apparatus for flue desulfurization |
-
2018
- 2018-02-24 CN CN201820267067.5U patent/CN208145761U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798514A (en) * | 2019-01-31 | 2019-05-24 | 云南农业大学 | A kind of resistive connection slag biomass combustion furnace spray apparatus for ash and biomass combustion furnace |
| CN117619133A (en) * | 2024-01-25 | 2024-03-01 | 山东力净环保科技有限公司 | Desulfurizing agent injection apparatus for flue desulfurization |
| CN117619133B (en) * | 2024-01-25 | 2024-04-26 | 山东力净环保科技有限公司 | Desulfurizing agent injection apparatus for flue desulfurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A dry desulfurization system with calcium injection in the furnace Effective date of registration: 20221212 Granted publication date: 20181127 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2022980026415 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20240103 Granted publication date: 20181127 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2022980026415 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Dry Desulfurization System with Calcium Injection in the Furnace Granted publication date: 20181127 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2024980001872 |