CN106582229A - Combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment - Google Patents
Combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment Download PDFInfo
- Publication number
- CN106582229A CN106582229A CN201611157602.3A CN201611157602A CN106582229A CN 106582229 A CN106582229 A CN 106582229A CN 201611157602 A CN201611157602 A CN 201611157602A CN 106582229 A CN106582229 A CN 106582229A
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- Prior art keywords
- waste gas
- gas
- heating
- gas treatment
- cavity
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- 239000002912 waste gas Substances 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 239000003513 alkali Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000011552 falling film Substances 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- 229910000070 arsenic hydride Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment. Waste gas to be treated is charged into a left chamber of the apparatus, the rising waste gas is contacted with atomized water sprayed by a front sprayer, the waste gas then enters a middle heating area from a heating area entry, heat of an electrothermal rod is fully contacted with the waste gas when the waste gas enters a porous spiral gas passage for travelling, the waste gas flows through an adapting pipe to a funnel-shaped gas port, alkaline liquid sprayed by a rear sprayer absorbs residual harmful components in the waste gas again, and it is guaranteed that gas emitted to air meets the environmental protection requirement. The apparatus has the advantages that acidic gas and other harmful gases in industrial waste gas can be effectively absorbed, the problem that a traditional falling-film absorbing tower has poor absorbing effect due to the direct use of liquid water, and the apparatus is convenient and safe to operate and good in process capacity.
Description
Technical field
The present invention relates to the technical field that waste gas purification is processed, the multistage absorption combined type of more particularly to a kind of sour gas
Emission-control equipment.
Background technology
The process of industrial waste gas is the industry problem to be solved now.It is well known that in the chemical industry of production iron chloride
During the products such as factory, light power plant, panel factory, solar energy factory or various panel, harmful waste gas is generated sometimes.Example
Such as：To using hydrochloric acid（HCl）To dissolve the slag of iron content come for the chemical plant for producing iron chloride, hydrochloric acid and slag
The pernicious gas that learning can produce during reaction includes：The HCl gas for evaporating（HCl）, hydrogen sulfide（H2S）, PFC ［ perfluorinates
Compound (perfluoro-compounds) ］, arsenic hydride（H3As）Deng when the waste gas containing above-mentioned gas is processed, usually
Using 4 kinds of methods such as damp process, absorption method, heat resolve method and combustion method.
At present the common emission-control equipment of industry is the emission-control equipment of combustion-type and electrothermal.Either use
The emission-control equipment of combustion-type or electrothermal decomposes the waste gas such as the compound containing fluorination or perfluorochemical, during it all
High temperature and substantial amounts of dust and sour gas can be produced, therefore emission-control equipment would generally be provided with sprinkler to be dropped
Temperature and washing.
In order to improve the quality of exhaust-gas treatment, reduces cost and simple flow, reduction pollutant process cost etc., technology people
Member carries out constantly improvement on the equipment of exhaust-gas treatment.In existing waste gas treatment equipment, for the process of sour gas
Technical literature has：
1st, patent document【Application number：201310354106.7】A kind of " emission-control equipment " is disclosed, its, including at a waste gas
Reason groove, forms a waste gas inlet and a waste gas gas outlet, and the surrounding in the waste gas treating tank around configuration one ring-type heating
Device, the heating rod of interval setting one in the ring-shaped heater, forms a heating chamber between the ring-shaped heater and heating rod；One every
Plate, is arranged between ring-shaped heater and heating rod, and the dividing plate forms a gas flow in heating chamber partition；Wherein, should
The one inlet end connection waste gas inlet of gas flow, an outlet side of the gas flow then connects waste gas and goes out by heating chamber
Gas port.The apparatus structure is complicated, and the process of waste gas has been arranged in pairs or groups damp process and heating, wherein especially increased in heating
Extend the design of gas hold-up time, but the patent is for increasing the air flue design of holdup time or fairly simple, also
Say that gas, by time of regular air flue or very short, causes holdup time time delay limited, the improvement effect of its heating
On need to be investigated.
2nd, patent document【Application number：201510081120.3】A kind of " emission-control equipment " is disclosed, including at waste gas
Reason machine and gas leading-in device.Gas leading-in device is connected on the pipeline of the port of export of exhaust gas processor, and wherein gas is led
The humidity for entering the gas of device importing is less than the humidity of the tail gas in exhaust gas processor.The device is typical wet method exhaust-gas treatment
Device, but its processing mode is too single, and simple water spray processes the harmful components that cannot sufficiently absorb in waste gas, simultaneously for
Sour gas, best processing mode should be to use alkali liquor absorption, but not refer in text.
In sum, to be primarily present absorption pattern single for existing exhaust gas apparatus, waste gas holdup time in device it is short so as to
Process not enough fully, very big etc. the defect of dependence of efficiency and accuracy to sensor.
The content of the invention
The present invention provides a kind of multistage emission-control equipment of combined type of wet method-heating Combined Treatment, gives full play to
Two methods of the absorption of wet method and heating and the advantage of heat resolve, solve that current exhaust gas processing meanss method is single, place
Reason is insufficient with inefficient problem.
A kind of multistage emission-control equipment of combined type of wet method-heating Combined Treatment, the technology used in the present invention hand
Section is as follows：Pin cup is connected with antinose-dive leg, is waste gas treatment tank in the upper end of antinose-dive leg, and the exhaust-gas treatment casing is divided into
Lower two parts, are separated by central dividing plate, and its top is then divided into three cavitys, on both sides inwall in the cavity of its leftmost side
Water sprinkler before place is installed, pending waste gas from the left of the cavity from before opening below water sprinkler（Not shown in figure）In
Into, a series of ponding valve is then mounted with aforesaid dividing plate, be close to left side cavity on the right side of the heating for exhaust-gas treatment
Area, is provided with heating exhaust-gas treatment component, and the low order end of waste gas treatment tank is then the alkali liquor absorption section before waste gas discharge,
The both sides of the cavity are provided with water sprinkler behind place, and middle dividing plate is equally provided with ponding valve, at the same time one end of transfer tube
It is connected with bucket shape gas port through after dividing plate, the other end of the transfer tube then connects heated zones.
The lower end cavity of the exhaust-gas treatment casing is liquid storage cavity area, is the process of waste gas initial stage in the left side in the region
The aqueous water for discharging afterwards, but the aqueous water needed to first pass through concentration detector inspection before discharge degree is reached, if it has
Evil material concentration it is too high cause can not in the absorption water as exhaust-gas treatment, then the draining pump below waste gas treatment tank move
Make, waste water flowed through and be expelled directly out after drainpipe, if the liquid water concentration in the region is not high, stream arrives useless after check valve
In the right side cavity of gas disposal case lower end cavity, finally via returning again after return pipe, heat exchanger, flow distribution plate and isocon
Everywhere used in front water sprinkler.
The heating exhaust-gas treatment component includes snakelike stagnant gas plate, porous helical intake, electrical bar, heating wire and top
Plate, the snakelike stagnant gas plate is connected with the upper end of electrical bar with top board, and heating wire is then arranged on dividing plate with porous helical intake
Between top board, wherein electrical bar is located at the inner side of snakelike stagnant gas plate.
The intermediate shaft portion of the porous helical intake is divided into hollow pipeline, and is then machined with tube wall a series of
Hole, the waste gas that the heat of electrical bar is touring with helical intake through after hole portion is fully contacted.
The present invention remarkable result be：
1st, the present invention is the harmful components absorption plant containing acid gas, and system architecture is simple, and the loop of gas flowing is clear, acid
It is good that gas removes effect, the spare and accessory parts simple structure that next is used, and each kind valve body and pipeline can be with selection standard parts, therefore can
To effectively reduce manufacturing cost and use cost；
2nd, especially prominent advantage is the mode that this device employs heating and wet method step-by-step processing waste gas, has given full play to two
The advantage of kind of mode, especially heating area to increase the holdup time of waste gas so as to fully heating, design it is snakelike
Plate and helical intake serve good air flue prolongation effect, in final step sour gas again through the absorption of alkali lye,
So as to the deleterious acidic material of guaranteed gas is removed.
3rd, this device has the single absorption pattern of many different, traditional aqueous waters to meet from traditional drop evil spirit absorption tower
Require, therefore this device takes full advantage of the advantage of wet method and heating and liquid water circulating filter, it is ensured that it is discharged into air
In gas meet environmental requirement.
Description of the drawings
Fig. 1 is the general assembly schematic diagram of the present invention, wherein：1- pin cups；2- antinose-dive legs；3- concentration detectors；4- waste gas enters
Mouthful;5- waste gas treatment tanks；6- ponding valves；Water sprinkler before at 7-；8- isocons；9- flow distribution plates；10- heat exchangers；11- backwater
Pipe；12- bucket shape gas ports；Water sprinkler after at 13-;14- check valves；15- transfer tubes；16- drainpipes；17- draining pumps.
Fig. 2 is the working medium dynamic flow diagram schematic diagram of the present invention, and wherein A is exhaust gas entrance direction signs；B is useless for heating
Gas disposal area enters gas direction signs；C is thermal treatment zone exhausting waste gas direction signs；D is recirculated water flow direction mark.
Fig. 3 is the enlarged diagram of heating exhaust-gas treatment component at local E of the present invention.Wherein：The snakelike stagnant gas plates of 18-；
19- porous helical intakes；20- electrical bars；21- heating wire；22- top boards；23- dividing plates.
Specific embodiment
Illustrate shown in control Fig. 1 to Fig. 3, first check for the connection of the pipeline and sealing of waste gas treatment tank 4, unobstructed
Property, it is ensured that associated delivery line is unimpeded, especially ensures the hole processed on the hollow axial wall plane of porous helical intake 17 in logical
Smooth state, secondly checks whether electrical bar 18 is normal with the work of heating wire 19, heat exchanger 9, and in advance to exhaust-gas treatment
Injected clear water in case 4, unloaded trial operation.
Starter when needing to process waste gas, the cavity that pending waste gas is entered on the left of device, before subsequent place
Water sprinkler 6 sprays atomized water and the exhaust gas contact for rising, so as to absorb waste gas in harmful components, subsequent waste gas enters by the thermal treatment zone
Mouth enters the heating region at middle part, and waste gas is heated at snakelike 16 outside of stagnant gas plate by heating wire 19, when waste gas enters porous spiral shell
When touring in rotation air flue 17, the heat of electrical bar 18 gives up through the Kong Houyu processed on the hollow axial wall plane of porous helical intake 17
Gas is fully contacted, and waste gas harmful components are decomposed into innocuous gas by heat during this, therefore waste gas has abundance in heating region
Time is decomposed, and subsequent waste gas is flow to after bucket shape gas port 11 behind place via transfer tube 13, and water sprinkler 20 sprays alkali lye behind place
The harmful components remained in waste gas are absorbed again, and so as to ensure that the gas entered in air meets environmental requirement, now system is complete
Into corresponding function, if after tested concentration is not high for the aqueous water of the bottom of waste gas treatment tank 4, aqueous water passes through check valve
During the right side cavity of the lower end cavity of waste gas treatment tank 4 is flowed after 12, finally via return pipe 10, heat exchanger 9, flow distribution plate 8 with
And turn again to locate used in front water sprinkler 6 after isocon 7.
Claims (4)
1. the multistage emission-control equipment of combined type of a kind of wet method-heating Combined Treatment, pin cup（1）With antinose-dive leg（2）Even
Connect, in antinose-dive leg（2）Upper end be waste gas treatment tank（5）, it is characterised in that：The waste gas treatment tank（5）It is divided into upper and lower two
Individual part, by middle dividing plate（23）Separate, its top is then divided into three cavitys, the both sides inwall in the cavity of its leftmost side
On be provided with place before water sprinkler（7）, pending waste gas from the left of the cavity from before water sprinkler（7）The opening of lower section（In figure
It is not shown）Middle entrance, aforesaid dividing plate（23）On be then mounted with a series of ponding valve（6）, it is close on the right side of the cavity of left side
For the thermal treatment zone of exhaust-gas treatment, heating exhaust-gas treatment component, waste gas treatment tank are installed（5）Low order end then be waste gas discharge
Front alkali liquor absorption section, the water sprinkler after the both sides of the cavity are provided with place（13, middle dividing plate（23）Product is equally installed
Water valve（6）, at the same time transfer tube（15）One end pass through dividing plate（23）Afterwards with bucket shape gas port（12）Connection, the transfer tube
（15）The other end then connect heated zones.
2. the multistage emission-control equipment of combined type of wet method according to claim 1-heating Combined Treatment, its feature exists
In：The waste gas treatment tank（5）Lower end cavity be liquid storage cavity area, the region left side be the waste gas initial stage process heel row
The aqueous water put, but the aqueous water needed to first pass through concentration detector before discharge degree is reached（3）Inspection, if it is harmful
Material concentration is too high, and cause can not be in the absorption water as exhaust-gas treatment, then waste gas treatment tank（5）The draining pump of lower section
（17）Action, waste water flows through drainpipe（16）After be expelled directly out, if the liquid water concentration in the region is not high, by unidirectional
Valve（14）Afterwards stream is to waste gas treatment tank（5）In the right side cavity of lower end cavity, finally via return pipe（11）, heat exchanger
（10）, flow distribution plate（9）And isocon（8）After turn again to locate front water sprinkler（7）Used in.
3. the multistage emission-control equipment of combined type of wet method according to claim 1-heating Combined Treatment, its feature exists
In：The heating exhaust-gas treatment component includes snakelike stagnant gas plate（18）, porous helical intake（19）, electrical bar（20）, electric heating
Silk（21）And top board（22）, the snakelike stagnant gas plate（18）With electrical bar（20）Upper end and top board（22）Connection, heating wire
（21）With porous helical intake（19）Then it is arranged on dividing plate（23）With top board（22）Between, wherein electrical bar（20）Positioned at snakelike stagnant
Gas plate（18）Inner side.
4. the multistage emission-control equipment of combined type of wet method according to claim 3-heating Combined Treatment, its feature exists
In：The porous helical intake（19）Intermediate shaft portion be divided into hollow pipeline, and a series of hole is then machined with tube wall,
Electrical bar（20）Heat be fully contacted through touring with helical intake waste gas after hole portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157602.3A CN106582229A (en) | 2016-12-16 | 2016-12-16 | Combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157602.3A CN106582229A (en) | 2016-12-16 | 2016-12-16 | Combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106582229A true CN106582229A (en) | 2017-04-26 |
Family
ID=58801386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157602.3A Pending CN106582229A (en) | 2016-12-16 | 2016-12-16 | Combined multistage waste gas treatment apparatus employing combined wet process and heating process treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106582229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043184A (en) * | 2017-11-08 | 2018-05-18 | 湖州山海环保工程有限公司 | A kind of emission-control equipment |
| CN111036063A (en) * | 2019-12-21 | 2020-04-21 | 苏州仕净环保科技股份有限公司 | Tower type desulfurization waste gas treatment equipment |
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| CN206355806U (en) * | 2016-12-16 | 2017-07-28 | 广西红润化工科技有限公司 | The multistage emission-control equipment of the combined type of wet heating method Combined Treatment |
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2016
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| JP2003001063A (en) * | 2001-06-26 | 2003-01-07 | Ebara Corp | Method and device for treating nf3-containing exhaust gas |
| CN202193613U (en) * | 2010-11-04 | 2012-04-18 | 南通嘉禾化工有限公司 | Device for recycling dilute hydrochloric acid from tail gas containing hydrogen chloride gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043184A (en) * | 2017-11-08 | 2018-05-18 | 湖州山海环保工程有限公司 | A kind of emission-control equipment |
| CN111036063A (en) * | 2019-12-21 | 2020-04-21 | 苏州仕净环保科技股份有限公司 | Tower type desulfurization waste gas treatment equipment |
| CN111036063B (en) * | 2019-12-21 | 2023-09-01 | 苏州仕净科技股份有限公司 | Tower desulfurization exhaust treatment equipment |
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Application publication date: 20170426 |
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