CN101549252A - System for treating waste gas generated by automotive internal decorative board - Google Patents
System for treating waste gas generated by automotive internal decorative board Download PDFInfo
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- CN101549252A CN101549252A CNA2009100310134A CN200910031013A CN101549252A CN 101549252 A CN101549252 A CN 101549252A CN A2009100310134 A CNA2009100310134 A CN A2009100310134A CN 200910031013 A CN200910031013 A CN 200910031013A CN 101549252 A CN101549252 A CN 101549252A
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Abstract
The invention discloses a system for treating waste gas generated by an automotive internal decorative board, comprising a shock hydraulic jump dust remover, a cyclone water film dust remover, a chemical absorption system, an absorption tank, an induced draught system, a high-altitude discharge system and a remained water purifying system. The method is a combined treatment technology of physics and chemistry and has the following advantages: two-stage dust removal consisting of the shock hydraulic jump dust remover and the cyclone water film dust remover effectively removes particle pollutants from waste gas generated by the automotive internal decorative board, simultaneously can reduce the temperature of the waste gas and reduce the influence on the purification effect of follow-up systems; the chemical absorption system is adopted, and copper sulfate absorption liquid with the mass concentration of 10 percent is used for absorbing compounds of phenols and aldehydes in the waste gas and part of volatile organic pollutants, thus reducing the load of volatile organic pollutants and prolonging regeneration period of absorbing material in the absorption tank; and the absorption tank adopts graded coke as the absorbing material, thus being capable of improving the efficiency of removing the volatile organic pollutants, having low price and being capable of effectively reducing the operation cost.
Description
Technical field
The invention belongs to a kind of exhaust treatment system.Specifically, relate to a kind of system for treating waste gas generated by automotive internal decorative board.
Background technology
At present, the automotive trim panel output of China has occupied prostatitis, the world for years, and there are nearly thousand families of various scale automotive trim panel manufacturing enterprise in the whole nation.Can be domestic and international automobile manufacturing enterprise every year nearly 1,000,000 of automotive trim panel is provided.The automotive trim board production technology is mainly production leftover bits and pieces or the cotton fibriia product that adopts some textile enterprise's linen-cotton products, at first they are broken into fibrous, sneak into binding agents such as a certain amount of phenolic resins, phenol, APP then, after the heat-setting of polymerization baking oven, extrusion modling.Produce a large amount of waste gas in this process, the main component of waste gas is particulate pollutant, the back polluters that contain tar, phenols, aldehydes, other volatile organic matters etc. that produce of phenolic resins volatilization such as fibre dust.
The main feature of waste gas generated by automotive internal decorative board is: (1) temperature height; (2) penetrating odor is big; (3) particulate pollutant content is big, easily is attached to wall after the cooling; (4) various volatile organic contaminant content height.
China's waste gas generated by automotive internal decorative board several processing methods commonly used and shortcoming thereof are as follows at present:
(1) washing+spray cleaning is handled: what domestic treatment technology for waste gas generated by automotive internal decorative board adopted more than 90% is this technology, the major defect of this technology is only the waste gas in the production process to be carried out simple dust removal process, remove the particulate pollutant in most of waste gas, and low to the organic pollutant removal efficient in the waste gas.
(2) dedusting+washing process: employing mainly be cyclone dust removal and packed tower method for washing, can satisfy the requirement of dedusting substantially, but the purification of organic pollution is needed to strengthen, it is low to handle back waste gas smell clearance, can't reach discharge standard.
As seen existing system for treating waste gas generated by automotive internal decorative board can't main cause up to standard be that the treatment process unit is too simple, and the processing object only is the particulate pollutant in the waste gas, and the organic pollution in the waste gas is effectively handled.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, a kind of waste gas generated by automotive internal decorative board processing method is provided, this method can effectively reduce EGT, to particulate pollutant, volatile organic contaminant, phenols, aldehydes pollutants removal rate height, reduced investment in the waste gas, energy consumption is low, operating cost is low, handle the back discharging waste gas can reach " discharge standard of air pollutants " primary standard (GB16297-1996).
For achieving the above object, the technical solution used in the present invention is, a kind of system for treating waste gas generated by automotive internal decorative board is characterized in that: system for treating waste gas generated by automotive internal decorative board is formed by impacting hydraulic jump dust pelletizing system, whirlwind water film dedusting system, chemical absorbing system, adsorption system, air inducing and high altitude discharge system and surplus water purification system seven parts; Enter from the waste gas in workshop and to enter whirlwind water film dedusting system after impacting hydraulic jump dust pelletizing system rough dusting, after the intrasystem air-introduced machine pressurization of whirlwind water film dedusting, enter the chemical absorbing system, waste gas after chemical absorbing is handled enters adsorption system, enters atmosphere after the high altitude discharge system is sent in the induced draught system pressurization.The waste water that whirlwind moisture film system and chemical absorbing system produce enters surplus water purification system and enter the urban sewage pipeline after purified treatment.
A kind of system for treating waste gas generated by automotive internal decorative board of the present invention is characterized in that this system is made up of following part:
(1) impacts the hydraulic jump dust pelletizing system: remove the particulate pollutant in the waste gas, waste gas is 1～2 second time of staying in impacting the hydraulic jump deduster, particulate pollutant clearance 60%～65%, the deduster inwall that impacts the hydraulic jump dust pelletizing system carries out ceramic preservative treatment, and the fine sand of shop, deduster bottom 1-2 cm thick;
(2) whirlwind water film dedusting system: form by water dust scrubber body and waste water filtering circulatory system two parts.Further remove particulate pollutant, volatile organic contaminant, oxynitrides in the waste gas, can effectively reduce the temperature of waste gas simultaneously.Waste gas is 2～4 seconds time of staying in water dust scrubber, and the clearance of particulate pollutant is increased to 97%～99%; The waste water that forms recycles after the waste water filtering circulatory system is handled.While part that can be removed volatile organic contaminant and nitrogen oxide, clearance is respectively 10%～15%, and 5%～8%;
(3) chemical absorbing system: the chemical absorbing system comprises chemical absorbing jar and chemical absorbing liquid circulating tank two parts.By the haptoreaction of waste gas and chemical absorbing liquid, remove phenols, aldehyde compound in the waste gas, remove the part volatile organic contaminant simultaneously; Exhaust gas residence time 6～8 seconds, gas-liquid volume ratio 20-30: 1, volatile organic contaminant clearance 50%～55%, phenols, aldehyde compound clearance 80%～85%, chemical absorbing liquid are that mass concentration is 10% copper-bath;
(4) adsorption system: in adsorption tanks, the volatile organic contaminant in the waste gas, phenols, aldehyde compound are by further absorption removal, and waste gas is 1～2 second time of staying in adsorption tanks, filling adsorption material in the adsorption tanks; Sorbing material is a coke granule;
(5) induced draught system: adsorption system is handled back waste gas pressurize;
(6) high altitude discharge system: the height that the waste gas after the induced draught system pressurization is drained into regulation according to " discharge standard of air pollutants " requirement (GB16297-1996);
(7) surplus water purification system: the saturated waste water of absorption from whirlwind water film dedusting system and the generation of chemical absorbing system is sent into surplus water purification treatment system, this system generally adopts the coagulating sedimentation treatment process, treatedly send into the urban sewage pipe system after up to standard, finally send into the municipal sewage plant; Waste water purified treatment time in system is 1-2 hour.
The invention has the advantages that:
(1) the two-stage dedusting of forming by impact hydraulic jump dust pelletizing system, whirlwind water film dedusting system, effectively remove the particulate pollutants such as tar in the waste gas generated by automotive internal decorative board, prevent to stop up the subsequent treatment system, reduce the temperature of waste gas simultaneously, reduce influence the clean-up effect of follow-up system.
(2) the chemical absorbing system of Cai Yonging, to utilize mass concentration be 10% copper-bath absorbs phenols, aldehyde compound and part volatile organic contaminant in the waste gas as absorption liquid, reduce the volatile organic contaminant load, prolong the regeneration period of sorbing material in the follow-up adsorption tanks.
(3) adopt in the adsorption system grating coke granule as sorbing material, can improve the removal efficient of volatile organic contaminant, and it is cheap, adsorb and directly send the boiler room to burn after saturated, the processing of need not regenerating can effectively reduce operating cost.
(4) the saturated waste water of absorption of whirlwind water film dedusting system and chemical absorbing system generation is sent into and is entered the urban sewage pipeline after surplus water purification system is handled, and finally enters municipal sewage plant's advanced treating, prevents secondary pollution.
The present invention through the equipment development and the system integration, develops two-stage dedusting-chemical absorbing-adsorption technology to be applied to the cleaning system that waste gas generated by automotive internal decorative board is handled.Show by the experiment that waste gas generated by automotive internal decorative board is handled, utilize processing method provided by the invention,, can improve treatment effeciency about 70%, can reach more than 95% organic pollution materials clearances such as phenols than typical dedusting-spray treatment process.And this method treatment effect is stable, automatic control degree height, and operating personnel are few, and management is simple.
In a word, the present invention has overcome the defective of aforementioned existing dedusting and WATER-WASHING METHOD processing waste gas generated by automotive internal decorative board technology, has technique unit and forms rationally, removes the high and stable characteristics of treatment effect of efficient.
Description of drawings
Accompanying drawing 1 is a process unit flow chart of the present invention: 1, impact the hydraulic jump dust pelletizing system; 2, whirlwind water film dedusting system; 3, chemical absorbing system; 4, adsorption system; 5, induced draught system; 6, high altitude discharge system; 7, surplus water purification treatment system.
Accompanying drawing 2 is a process unit detail drawing of the present invention: 1, impact the hydraulic jump dust pelletizing system; 2, whirlwind water film dedusting system: 21 cyclonic water film deduster bodies, the 22 waste water filtering circulatory systems, 23 air-introduced machines; 3, chemical absorbing system: 31 eddy flow plate touries, 32 absorption liquid circulating tanks; 4, adsorption system; 5, induced draught system; 6, high altitude discharge system; 7, surplus water purification treatment system: 71 high speed agitators, 72 low-speed agitators
The specific embodiment
As shown in drawings, technological process device of the present invention is formed by impacting hydraulic jump dust pelletizing system 1, whirlwind water film dedusting system 2, chemical absorbing system 3, adsorption system 4, induced draught system 5, high altitude discharge system 6 and 7 seven parts of surplus water purification treatment system.
In conjunction with the accompanying drawings the present invention is described in further detail.
A kind of system for treating waste gas generated by automotive internal decorative board, successively by forming with the lower part:
(1) impacts hydraulic jump dust pelletizing system 1: in impacting hydraulic jump dust pelletizing system 1, utilize waste gas to enter back flow velocity bust and make the different principle of the suffered momentum of particulate pollutant and gas, particulate pollutant is separated with gas, gas is upwards discharged by water-reflected, and the particulate pollutant gravitate enters in the water, reaches the purpose of removing particulate pollutant in the waste gas.In order to be beneficial to the compositions of removing in the waste gas that is attached to wall or bottom such as tar, the dust pelletizing system inwall carries out ceramic preservative treatment, and the fine sand of shop, deduster bottom 1-2 cm thick.Waste gas is 1～2 second time of staying in impacting hydraulic jump dust pelletizing system 1, particulate pollutant clearance 60%～65%.
(2) whirlwind water film dedusting system 2: whirlwind water film dedusting system 2 is made up of cyclonic water film deduster body 21, the waste water filtering circulatory system 22 and air-introduced machine 23 3 parts.In water dust scrubber 21, the waste gas that moisture film that the moisture film generating means that utilizes top to be provided with produces and bottom enter carries out adverse current to be mixed, and moisture film is fully contacted with waste gas, with the temperature of effective reduction waste gas and the various pollution compositions in the removal waste gas.Waste gas is 2～4 seconds time of staying in water dust scrubber 2, and the clearance of particulate pollutant is increased to 97%～99%.Adsorb saturated waste water and flow into the waste water filtering circulatory system 22, handle the back after filtration and recycle by water circulating pump 212 through waste pipe 211.Waste gas can be removed compounds such as part volatile organic contaminant and phenols simultaneously in cyclonic water film deduster body 21, clearance is respectively 10%～15%, 5%～8%.
(3) chemical absorbing system 3: enter chemical absorbing system 3 through the waste gas after 2 processing of whirlwind water film dedusting system, chemical absorbing system 3 comprises eddy flow plate tourie 31 and absorption liquid circulating tank 32 two parts.By the haptoreaction of waste gas and adsorption liquid, remove phenols, aldehyde compound in the waste gas, remove the part volatile organic contaminant simultaneously; Exhaust gas residence time 6～8 seconds, gas-liquid volume ratio 20-30: 1, volatile organic contaminant clearance 50%～55%, phenols, aldehyde compound clearance 80%～85%.Adsorb saturated waste water and flow into absorption liquid circulating tank 32 through waste pipe 311, recycle by water circulating pump 312 then, chemical absorbing liquid is that mass concentration is 10% copper-bath.
(4) adsorption system 4: in adsorption system 4, the volatile organic contaminant in the waste gas etc. is adsorbed the adsorbed removal of material (coke), and waste gas is 1～2 second time of staying in adsorption system 4.
(5) induced draught system 5: adsorption system 4 is handled back waste gas pressurize.
(6) high altitude discharge system 6: the height that the waste gas after induced draught system 5 pressurizations is drained into regulation according to " discharge standard of air pollutants " requirement (GB16297-1996).
(7) surplus water purification system: in surplus water purification system 7, the waste water that comes from the purification of waste water circulatory system 22 and the absorption liquid circulatory system 32 is collected in the surplus water purification system 7 of back inflow through overflow pipe 221 and overflow pipe 321, handles the back qualified discharge through coagulating sedimentation and enters the urban sewage pipeline.Establish high speed agitator 71 (rotating speed 200-250rpm) and low-speed agitator 72 (rotating speed 40-80rpm) in the surplus water purification system 7.
Claims (5)
1. system for treating waste gas generated by automotive internal decorative board is characterized in that being made up of following part:
(1) impact hydraulic jump dust pelletizing system 1, waste gas is 1～2 second time of staying in impacting the hydraulic jump deduster; (2) whirlwind water film dedusting system 2, whirlwind water film dedusting system 2 is made up of cyclonic water film deduster body 21, the waste water filtering circulatory system 22 and air-introduced machine 23 3 parts, and waste gas is 2～4 seconds time of staying in water dust scrubber body 21; (3) chemical absorbing system 3; (4) adsorption system 4, and waste gas is 1～2 second time of staying in adsorption system 4; (5) induced draught system 5; (6) high altitude discharge system 6; (7) surplus water purification system, the waste water purified treatment time in surplus water purification system is 1-2 hour.
2. a kind of system for treating waste gas generated by automotive internal decorative board according to claim 1 is characterized in that: in impacting hydraulic jump dust pelletizing system 1, the deduster inwall carries out ceramic preservative treatment, and spreads the fine sand of 1～2 cm thick in the deduster bottom.
3. a kind of system for treating waste gas generated by automotive internal decorative board according to claim 1, it is characterized in that: chemical absorbing system 3 is made up of chemical absorbing jar 31 and absorption liquid circulating tank 32 two parts, adsorb saturated waste water and flow into absorption liquid circulating tank 32 through waste pipe 311, recycle by water circulating pump 312 then, waste gas is 6～8 seconds time of staying in chemical absorbing jar 31, gas-liquid volume ratio 20～30: 1, wherein chemical absorbing liquid is that mass concentration is 10% copper-bath.
4. a kind of system for treating waste gas generated by automotive internal decorative board according to claim 1 is characterized in that: filling adsorption material in adsorption system 4, sorbing material are coke granule.
5. a kind of system for treating waste gas generated by automotive internal decorative board according to claim 1, it is characterized in that: in surplus water purification system 7, the treatment process that system adopts is a coagulating sedimentation, and establishes high speed agitator 71 in the surplus water purification system 7, and its rotating speed is 200-250rpm; Low-speed agitator 72, its rotating speed are 40-80rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100310134A CN101549252A (en) | 2009-04-22 | 2009-04-22 | System for treating waste gas generated by automotive internal decorative board |
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| CNA2009100310134A CN101549252A (en) | 2009-04-22 | 2009-04-22 | System for treating waste gas generated by automotive internal decorative board |
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| CN101549252A true CN101549252A (en) | 2009-10-07 |
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| CNA2009100310134A Pending CN101549252A (en) | 2009-04-22 | 2009-04-22 | System for treating waste gas generated by automotive internal decorative board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321109A (en) * | 2017-08-04 | 2017-11-07 | 湖北天运消音防振新材料有限公司 | A kind of automotive trim panel production dust arrester |
| CN109200792A (en) * | 2018-05-28 | 2019-01-15 | 柏美迪康环境科技（上海）股份有限公司 | A kind of steel works sintering smoke comprehensive processing method and system |
| CN111589273A (en) * | 2020-06-04 | 2020-08-28 | 崔云兰 | VOCs purification system and purification method in automotive interior production process |
-
2009
- 2009-04-22 CN CNA2009100310134A patent/CN101549252A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321109A (en) * | 2017-08-04 | 2017-11-07 | 湖北天运消音防振新材料有限公司 | A kind of automotive trim panel production dust arrester |
| CN109200792A (en) * | 2018-05-28 | 2019-01-15 | 柏美迪康环境科技（上海）股份有限公司 | A kind of steel works sintering smoke comprehensive processing method and system |
| CN111589273A (en) * | 2020-06-04 | 2020-08-28 | 崔云兰 | VOCs purification system and purification method in automotive interior production process |
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Open date: 20091007 |