CN206587593U - A kind of novel deduster with deacidification effect - Google Patents
A kind of novel deduster with deacidification effect Download PDFInfo
- Publication number
- CN206587593U CN206587593U CN201720108564.6U CN201720108564U CN206587593U CN 206587593 U CN206587593 U CN 206587593U CN 201720108564 U CN201720108564 U CN 201720108564U CN 206587593 U CN206587593 U CN 206587593U
- Authority
- CN
- China
- Prior art keywords
- deduster
- calcium hydroxide
- flue
- bin
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 title claims abstract description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 57
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 57
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 57
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 27
- 239000007924 injection Substances 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 13
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 11
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 5
- 239000010813 municipal solid waste Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model is related to gas cleaning field of environment protection equipment, specially a kind of novel deduster with deacidification effect, including common deduster, there are deduster bin and filter bag in the common deduster, smoke inlet pipelines provided with smoke inlet valve are connected with deduster bin flue entrance, exhanst gas outlet pipeline provided with exhanst gas outlet valve is connected with deduster flue outlet, it is characterized in that, the novel deduster is additionally included in be provided with the common deduster bin flue entrance directly sprays calcium hydroxide to filter bag of dust collector surface, for removing HCl in flue gas, the calcium hydroxide spray apparatus of SOx sour gas.
Description
Technical field
The utility model is related to gas cleaning environment-protective process and apparatus field, specially a kind of new with deacidification effect
Deduster.
Background technology
Among the flue gas produced in Refuse Incineration Process, contain substantial amounts of pollutant, such as particulate matter dust, sour gas
Body, bioxin etc., these Substances on Ecological Environment have different degrees of harm, it is therefore desirable to gone by flue gas purification system
Remove, make up to discharge standard.Dust minimizing technology in flue gas has electrostatic precipitation, Venturi scrubbing and bag-type dusting etc..Phase
Than first two, sack cleaner had both had the effect of dedusting, while having the remove functions such as sour gas concurrently.Sour gas in flue gas
Body is mainly HCl, HF, SOx etc., can select the removing process such as dry method, semidry method, wet method.The flue gas of domestic garbage burning factory
Purification is main to use semidry method, but dry-process deacidification compares other two kinds of techniques, and advantage is that system apparatus arrangements are simple, calcium hydroxide
Conveyance conduit is difficult obstruction, water consumption is few, power consumption is small, investment and the low aspect of maintenance cost are still applied to flue gas
Purify in technique.The deacidification efficiency and reduction calcium hydroxide consumption for how improving dry process are the problems faced at present.
At present, calcium hydroxide dry powder is sprayed into sack cleaner by dry-process deacidification mainly by the nozzle being located in flue
In preceding flue, chemically reacted with the acid contaminant in flue gas.Publication No. CN202237788U extra quality spray
Powder device, Publication No. CN202146715U dry-process deacidification system etc. is all to use above-mentioned technique.Because flue gas is in pipeline
Passage time is very short, therefore above-mentioned reaction is carried out on filter bag of dust collector surface mostly.But it is attached to the calcium hydroxide on filter bag surface
The mixed layer of layer actually calcium hydroxide and other chemical reaction products, thus when flue gas by when, when acid gas in flue gas with
Do not reach removal effect when material is contacted in addition to calcium hydroxide, cause a part of sour gas to remain among flue gas, although plus
Big calcium hydroxide quantity for spray, but have little effect, and increase calcium hydroxide consumption.
Utility model content
The purpose of this utility model is to provide a kind of novel deduster with deacidification effect, so that efficient remove smoke abatement
The sour gas such as HCl, SOx in gas.The utility model adds calcium hydroxide injection dress in existing deduster point bin flue entrance
Put, calcium hydroxide directly sprayed to filter bag of dust collector surface, with reach formed on filter bag surface lasting high-purity niter grieshoch from
And high efficiency removes the sour gas such as HCl, SOx in flue gas.
The utility model deduster utilizes filter bag surface calcium hydroxide in the overall off-line ash-clearing and corresponding filter chamber of single filter chamber
Injection is combined mode, forms high-purity calcium hydroxide cake layer, increase calcium hydroxide and acid gas in flue gas contacting efficiency, so that
Reach that high efficiency removes the purpose of the sour gas such as HCl, SOx in flue gas.
Concrete technical scheme of the present utility model is：A kind of novel deduster with deacidification effect, including common dedusting
There are deduster bin and filter bag in device, the common deduster, the smoke inlet pipelines provided with smoke inlet valve and deduster storehouse
Room flue entrance is connected, and the exhanst gas outlet pipeline provided with exhanst gas outlet valve is connected with deduster flue outlet, it is characterised in that
The novel deduster, which is additionally included at the common deduster bin flue entrance to be provided with to the directly injection of filter bag of dust collector surface, to disappear
Lime, the calcium hydroxide spray apparatus for removing HCl, SOx sour gas in flue gas；It is located at common deduster bin flue entrance
Calcium hydroxide injection apparatus, is to include calcium hydroxide injection pipe and calcium hydroxide injection valve, the calcium hydroxide injection pipe and flue gas
Inlet duct is connected after being connected in parallel with deduster bin flue entrance.
Further, the calcium hydroxide injection pipe is connected with air-heater.The air-heater plays pre-warmed effect, make into
The calcium hydroxide temperature for entering bin is consistent with flue-gas temperature, prevents paste bag phenomenon from occurring.
Dust removal method of the present utility model, by existing deduster, calcium hydroxide injection pipe, valve, flue gas gateway pipeline
And valve, air-heater composition novel deduster, calcium hydroxide injection apparatus is added in existing deduster point bin flue entrance, to
Calcium hydroxide is directly sprayed on filter bag of dust collector surface, during gas cleaning, and opening smoke inlet valve makes flue gas enter through flue gas
Mouthful pipeline is from bottom to top by each bin of deduster, calcium hydroxide of the sour gas with being attached to filter bag surface in flue gas
Learn and react and be attached to filter bag surface, lasting high-purity niter grieshoch is formed on filter bag surface so as to which high efficiency is removed to reach
The sour gas such as HCl, SOx in flue gas.
When the niter grieshoch on filter bag of dust collector surface reacts with sour gas in some deduster bins, certain journey is run up to
Off-line ash-clearing is carried out after degree.
Single filter chamber integrally largely sprays the corresponding filter chamber short time what calcium hydroxide was combined using rapid after off-line ash-clearing
Mode；After off-line ash-clearing, open calcium hydroxide injection pipe and lead to the valve for needing to carry out spraying filter chamber, while keeping smoke inlet
Valve is closed, exhanst gas outlet valve is remained on, and is entered by point bin flue for being arranged on common deduster
Mouthful calcium hydroxide injection apparatus and valve to filter chamber filter bag surface carry out the calcium hydroxide short time largely spray, make filter bag continuous surface
Form high-purity niter grieshoch.
After the overall off-line ash-clearing of single filter chamber, the calcium hydroxide injection apparatus valve progress short time for opening corresponding filter chamber is a large amount of
Calcium hydroxide sprays, and should now keep corresponding filter chamber smoke inlet valve to be closed, exhanst gas outlet valve open mode makes
Formation negative pressure, the calcium hydroxide powder of injection is attached to filter bag surface from bottom to top, form niter grieshoch.
It is integrally to be used as object to carry out complete deashing and injection using filter chamber that off-line ash-clearing and lasting niter grieshoch, which are formed, is completed
Calcium hydroxide injection apparatus valve is closed afterwards, while opening smoke inlet valve carries out gas cleaning dedusting.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：Deduster bin 1, filter bag 2, exhanst gas outlet valve 3, calcium hydroxide injection valve 4, smoke inlet valve 5, disappear
Lime injection pipe 6, smoke inlet pipelines 7, air-heater 8.
Embodiment
The utility model deduster by deduster bin 1, filter bag 2, exhanst gas outlet valve 3, calcium hydroxide as shown in figure 1, sprayed
Valve 4, smoke inlet valve 5, calcium hydroxide injection pipe 6, smoke inlet pipelines 7, air-heater 8 is penetrated to constitute.The common deduster
Inside there are deduster bin and filter bag, the smoke inlet pipelines provided with smoke inlet valve are connected with deduster bin flue entrance,
Exhanst gas outlet pipeline provided with exhanst gas outlet valve is connected with deduster flue outlet, it is characterised in that the novel deduster is also
It is included at the common deduster bin flue entrance provided with calcium hydroxide is directly sprayed to filter bag of dust collector surface, for removing smoke abatement
The calcium hydroxide spray apparatus of HCl, SOx sour gas in gas.
The course of work of the utility model deduster is：
1. opening smoke inlet valve 5, flue gas is passed through in deduster bin 1 through inlet duct 7, is attached to the surface of filter bag 2
Calcium hydroxide to acid gas in flue gas carry out Contact-sorption, when accumulation to a certain extent after carry out off-line ash-clearing processing.
2. keeping smoke inlet valve 5, exhanst gas outlet valve 3 to close during off-line ash-clearing, after the completion of deashing, cigarette is still kept
Gas inlet valve 5 is closed, and opens calcium hydroxide injection valve 4, filter chamber 1 is internally formed pressure difference while opening exhanst gas outlet valve 3,
Calcium hydroxide powder after being heated through air-heater 8, to the surface of filter bag 2, forms disappearing for high concentration through a large amount of injections in the short time of pipeline 6
Lkd layer.
3. after the completion of calcium hydroxide injection, close calcium hydroxide injection valve 4, while open smoke inlet valve 5, continue into
Row gas cleaning dedusting.
Deduster bin is also referred to as filter chamber in the utility model.
Implementation result
Certain 2 × 300 tons of garbage burning factory, fume treatment uses dry process, and 1# lines are continuously blown using flue calcium hydroxide
Formula device A, 2# line use patent application device B, design two sets of checking tests, experiment 1：Two lines ton rubbish consumption niter ash quantity
It is disposed as 12kg, relatively more per day HCl concentration of emissions；Experiment 2：30mg/Nm is reached in per day HCl concentration of emissions3Journey
When spending, compare the consumption of calcium hydroxide.Two lines flue gas emissions mouthful are carried out with daily monitoring in continuous 5 days, experiment 1 the results are shown in Table
1；Experiment 2 the results are shown in Table 2：
Remarks：1 is first day；2 be second day；By that analogy.
A is the continuous blowing type device of flue calcium hydroxide；B is the utility model deduster.
Test result analysis：
It can be drawn by table 1：It is continuous using domestic current flue calcium hydroxide under conditions of calcium hydroxide consumption is the same
Blowing type device A can only achieve GB standard discharge to HCl removal effect；And present utility model application device B then can be by
HCl concentration is down to the 10mg/Nm of the standard requirement of European Union 20003Below.
It can be drawn by table 2：30mg/Nm is reached in HCl concentration of emissions simultaneously3In the case of, present utility model application device B
The niter ash quantity of 8.89kg/t- rubbish is averagely only needed to, and the continuous blowing type device A of flue calcium hydroxide then averagely needs consumption
The niter ash quantity of 14.82kg/t- rubbish.
To sum up, novel bag-type duster is compared to existing smoke eliminator at present, in when that reaches identical discharge standard institute
The concentration for discharging HCl is relatively low；Niter ash quantity is consumed in identical HCl concentration of emissions less, so as to effectively solve waste incineration
During dry fume deacidification efficiency is low and the high shortcoming of calcium hydroxide consumption.
Claims (2)
1. there is deduster bin in a kind of novel deduster with deacidification effect, including common deduster, the common deduster
And filter bag, the smoke inlet pipelines provided with smoke inlet valve are connected with deduster bin flue entrance, provided with exhanst gas outlet valve
The exhanst gas outlet pipeline of door is connected with deduster flue outlet, it is characterised in that the novel deduster is additionally included in this and commonly removed
Provided with calcium hydroxide is directly sprayed to filter bag of dust collector surface at dirt device bin flue entrance, for removing HCl, SOx acid in flue gas
The calcium hydroxide spray apparatus of property gas；The calcium hydroxide injection apparatus for being located at common deduster bin flue entrance, is to include disappearing
Lime injection pipe and calcium hydroxide injection valve, the calcium hydroxide injection pipe are connected in parallel rear and dedusting with smoke inlet pipelines
Device bin flue entrance is connected.
2. a kind of novel deduster with deacidification effect according to claim 1, it is characterised in that the calcium hydroxide spray
Pipeline is penetrated with air-heater to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720108564.6U CN206587593U (en) | 2017-02-06 | 2017-02-06 | A kind of novel deduster with deacidification effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720108564.6U CN206587593U (en) | 2017-02-06 | 2017-02-06 | A kind of novel deduster with deacidification effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206587593U true CN206587593U (en) | 2017-10-27 |
Family
ID=60129090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720108564.6U Expired - Fee Related CN206587593U (en) | 2017-02-06 | 2017-02-06 | A kind of novel deduster with deacidification effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206587593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693659A (en) * | 2017-02-06 | 2017-05-24 | 上海康恒环境股份有限公司 | Novel dust collector with deacidification effect and dust removing method of novel dust collector |
| CN108187582A (en) * | 2017-12-29 | 2018-06-22 | 安徽捷云新材料科技有限公司 | A kind of plastic granulating workshop entirety dust pelletizing system and method |
-
2017
- 2017-02-06 CN CN201720108564.6U patent/CN206587593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693659A (en) * | 2017-02-06 | 2017-05-24 | 上海康恒环境股份有限公司 | Novel dust collector with deacidification effect and dust removing method of novel dust collector |
| CN108187582A (en) * | 2017-12-29 | 2018-06-22 | 安徽捷云新材料科技有限公司 | A kind of plastic granulating workshop entirety dust pelletizing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 |