CN107120666A - One kind spraying exhaust gas purifying method and device - Google Patents
One kind spraying exhaust gas purifying method and device Download PDFInfo
- Publication number
- CN107120666A CN107120666A CN201710271470.5A CN201710271470A CN107120666A CN 107120666 A CN107120666 A CN 107120666A CN 201710271470 A CN201710271470 A CN 201710271470A CN 107120666 A CN107120666 A CN 107120666A
- Authority
- CN
- China
- Prior art keywords
- preheater
- waste gas
- deduster
- coating cloud
- spraying
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
One kind sprays exhaust gas purifying method and device, and the above method comprises the steps, will spray waste gas and be passed through coating cloud particle desiccation formation coating cloud powder of the preheater heating by spraying in useless；The spraying waste gas for carrying coating cloud powder is passed through deduster filtering, spraying waste gas after filtering is passed through catalytic burner, said apparatus includes preheater, deduster and catalytic burner, preheating cavity is set in the preheater, there are many economizer banks in the preheating cavity, one end of the economizer bank is connected with pre-heater inlet, the other end and preheater outlet, the preheater outlet is connected with deduster entrance, the outlet of the deduster is connected with catalytic burner entrance, the catalytic burner outlet is connected by thermosistor with preheating cavity entrance, this method cleverly passes through preheater hot spraying waste gas, so as to the coating cloud particle desiccation that will be sprayed in waste gas, coating cloud powder is filtered by deduster again, realize to the coating cloud particle filtering in spraying waste gas, so effectively administer coating cloud, and filtering is convenient, filter effect is stable, and filtering cost is low.
Description
Technical field
Patent of the present invention is related to coating cloud in spraying waste gas and administers field, more particularly to a kind of spraying exhaust gas purifying method and
Device.
Technical background
There are two class main components in the waste gas that paint industry is produced：Coating cloud, volatile organic contaminant (VOCs).Coating cloud is
The sticky organic matter of the graininess for being not attached to workpiece surface produced in spraying process, volatile organic contaminant then main source
From the solvent in paint.Current China is mainly divided to two kinds of dry and wet for the method that coating cloud is administered.Dry method is with filter cotton
Filtering or filter cylinder are filtered into representative, and wet method is then to be modified and be captured as to represent with water spigot.
The filter cotton life-span is very limited, coating cloud be attached on filter cotton or filter cylinder easily it is hardened cause filtering duct block,
So as to the life-span of serious curtailment filter material.Although wet method can effectively administer the moisture taken out of in coating cloud, governance process and aggravate
Follow-up Processing tecchnics difficulty (for example with VOCs in catalyst surface competitive Adsorption can occur for moisture so as to reduce catalytic efficiency,
Moisture can occupy the duct of activated carbon to reduce adsorbance of the activated carbon to VOCs).
The content of the invention
The present invention is in view of the shortcomings of the prior art, propose a kind of long lifespan, performance stabilization, beneficial to what is cleaned and reuse
Spray exhaust gas purifying method and device.
The present invention adopts the following technical scheme that realization：
One kind spraying exhaust gas purifying method, comprises the following steps,
A, will spray waste gas be passed through preheater heating will spray it is useless in the desiccation of coating cloud particle form coating cloud powder；
B, by carry coating cloud powder spraying waste gas be passed through deduster filtering, by the spraying waste gas after filtering be passed through catalysis combustion
Burner；
Using above-mentioned steps, this method is cleverly by preheater hot spraying waste gas, so that the paint that will be sprayed in waste gas
Mist particle desiccation, then coating cloud powder is filtered by deduster, realize to the coating cloud particle filtering in spraying waste gas, so effectively control
Coating cloud is managed, and filtering is convenient, filter effect is stable, and also filtering cost is low.
The outlet side of the catalytic burner is connected with preheater heats to preheater, and the catalytic burner goes out
Gas end is entered to be connected by thermosistor with preheater, and thermosistor ensures the temperature of spraying waste gas in preheater at 40 DEG C~50 DEG C.It is logical
Cross catalytic burner and decompose the chemical energy discharged during VOCs to preheater preheating, autothermal equilibrium can be achieved, greatlys save net
Chemical conversion is originally.Ensure that preheater temperature is controllable by thermosistor, it is ensured that while desiccation effect, it is ensured that the safety of whole device operation
Property.Drying process accelerates the volatilization of volatile organic contaminant in coating cloud simultaneously, will by the catalytic action of catalytic burner
VOCs catalytic reactions resolve into CO2、H2O, it is to avoid secondary pollution.
Economizer bank is provided with the preheater, the preheating inside pipe wall is coated with non-sticking lining.
Set in a kind of spraying waste gas purifying device, including preheater, deduster and catalytic burner, the preheater pre-
There are many economizer banks in hot chamber, the preheating cavity, one end of the economizer bank is connected with pre-heater inlet, the other end and preheater
Outlet, the preheater outlet is connected with deduster entrance, and the outlet of the deduster is connected with catalytic burner entrance,
The catalytic burner outlet is connected by thermosistor with preheating cavity entrance.
The preheating inside pipe wall is coated with non-sticking lining.Prevent the incomplete coating cloud of desiccation from sticking to insides of pipes and causing pipeline
Block.
Provided with the deflector shunted to air-flow in the deduster entrance, filter cylinder is provided with the deduster, it is described
The filtering surface of filter cylinder is provided with non-sticking lining, and the bottom of the filter cylinder is provided with ash bucket.
Provided with the catalytic bed that VOCs is catalytically decomposed in the catalytic burner.
Because using such scheme patent preheater of the present invention, relative to filter material, not only long lifespan, performance are stable, Er Qieli
In cleaning and recycling.Sticky coating cloud is transformed into by non-sticky coating cloud by desiccation, can effectively filter coating cloud will not make again
Blocked into filter cylinder.Drying process accelerates the volatilization of volatile organic contaminant in coating cloud, it is to avoid secondary pollution, after retention
Desiccation coating cloud is practically free of pollutant, improves the feasibility of resource recycling, and the heat energy of preheater is decomposed from VOCs
During the chemical energy that discharges, autothermal equilibrium can be achieved to reach zero consumption.
In summary, the present invention promotes sticky coating cloud desiccation into non-stick by introducing drying technique during being collected in coating cloud
Property dust, so as to carry out high-precision filtration with filter cylinder, VOCs therein can be catalyzed combustion system and be decomposed, be decomposed
The heat that journey is produced can be used for coating cloud desiccation, so as to reduce cost.
Brief description of the drawings
Fig. 1 is integrated artistic schematic diagram
Label in figure：1- preheaters, 11- pre-heater inlets, 12- preheaters outlet, 13- economizer banks, 14- preheating cavities enter
Mouthful, the outlet of 15- preheating cavities, 2- dedusters, 21- deduster entrances, 22- house outlets, 23- filter cylinders, 24- ash buckets, 3- catalysis
Burner, 31- catalytic burner entrances, the outlet of 32- catalytic burners, 33- catalytic beds, 4- thermosistors.
Embodiment
Embodiment 1
As shown in figure 1, spraying waste gas is entered after preheater 1, the preheated pipe 13 of waste gas stream through pre- by pre-heater inlet 11
Hot device outlet 12 enters deduster 2.Wherein preheater 1 carries out desiccation by the way of shell heat exchange to the coating cloud in spraying waste gas
Processing.Spraying waste gas is connected by economizer bank 13 with preheater outlet 12, and spraying waste gas is made in the deflector of pre-heater inlet 11
Evenly spread under in economizer bank 13, the length of economizer bank 13 can be set according to the proportioning of paint, as long as from preheater
Export the complete desiccation of coating cloud discharged at 12.Thermal current in preheater 1 is provided by catalytic burner outlet 32, from catalysis
The hot-air that burner outlet 32 comes out is entered by thermosistor 4 from preheating cavity entrance 14, is transmitted heat first by contacting
To economizer bank 13, then economizer bank 13 is transferred heat in the form of heat radiation flows through coating cloud therein, and coating cloud receives heat
Rapid desiccation afterwards, economizer bank 13 uses the form of " metal outer wall+polytetrafluoroethylene (PTFE) inwall ", so as to prevent the incomplete coating cloud of desiccation
Cause line clogging.
Coating cloud after desiccation enters deduster 2 with air-flow removing dust device entrance 21, the coating cloud property after desiccation and general powder
Dirt is approached, and desiccation coating cloud is filtered by filter cylinder 23 and falls to ash bucket 24 by physical action, and the filtering surface of filter cylinder 23 is with polytetrafluoro
Ethene overlay film, can effectively prevent coating cloud from blocking filter cylinder.Air-flow is shunted provided with deflector in deduster entrance 21, so that
The filter efficiency of system is improved, house outlet 22 is connected with catalytic burner entrance 31.
The removing dust of air-flow containing VOCs device outlet 22 enters catalytic burner 3, and air-flow containing VOCs is carried out into catalytic burner 3
Catalytic reaction occurs in catalytic bed and resolves into CO by catalytic decomposition, VOCs2、H2O, VOCs are anti-in the catalysis of catalytic burner 3
Answer on bed 33 and occur catalytic oxidation and discharge substantial amounts of heat energy, heat energy initially enters the regulation air-flow temperature of thermosistor 4 with air-flow
Degree, thermosistor 4 is by supplements cold come temperature adjustment, the then preheated entrance of device preheating cavity entrance 14 preheater 1, and by preheater
Preheating cavity exports 15 rows to air.Wherein, the gateway of preheater 1, the gateway of deduster 2, the gateway of catalytic burner 3 are equipped with
Deflector.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (8)
1. one kind spraying exhaust gas purifying method, it is characterised in that：Comprise the following steps,
A, will spray waste gas be passed through preheater heating will spray it is useless in the desiccation of coating cloud particle form coating cloud powder；
B, by carry coating cloud powder spraying waste gas be passed through deduster filtering, by the spraying waste gas after filtering be passed through catalysis burning
Device.
2. spraying exhaust gas purifying method according to claim 1, it is characterised in that：The outlet side of the catalytic burner with
Preheater connection is heated to preheater.
3. spraying exhaust gas purifying method according to claim 2, it is characterised in that：The outlet side of the catalytic burner leads to
Cross thermosistor to enter to be connected with preheater, thermosistor ensures the temperature of spraying waste gas in preheater at 40 DEG C~50 DEG C.
4. the spraying exhaust gas purifying method according to one of claims 1 to 3, it is characterised in that：Set in the preheater
There is economizer bank, the preheating inside pipe wall is coated with non-sticking lining.
5. a kind of spraying waste gas purifying device, it is characterised in that：Including preheater, deduster and catalytic burner, the preheating
Being set in device in preheating cavity, the preheating cavity has many economizer banks, and one end of the economizer bank is connected with pre-heater inlet, another
End and preheater outlet, the preheater outlet are connected with deduster entrance, and outlet and the catalysis of the deduster are burnt
Device entrance is connected, and the catalytic burner outlet is connected by thermosistor with preheating cavity entrance.
6. spraying waste gas purifying device according to claim 5, it is characterised in that：The preheating inside pipe wall, which is coated with, not to be glued
Coating.
7. spraying waste gas purifying device according to claim 6, it is characterised in that：It is provided with the deduster entrance to gas
Flow and filter cylinder is provided with the deflector shunted, the deduster, the filtering surface of the filter cylinder is provided with non-sticking lining, the filter
The bottom of cylinder is provided with ash bucket.
8. spraying waste gas purifying device according to claim 7, it is characterised in that：In the catalytic burner provided with pair
The catalytic bed that VOCs is catalytically decomposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271470.5A CN107120666A (en) | 2017-04-24 | 2017-04-24 | One kind spraying exhaust gas purifying method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271470.5A CN107120666A (en) | 2017-04-24 | 2017-04-24 | One kind spraying exhaust gas purifying method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107120666A true CN107120666A (en) | 2017-09-01 |
Family
ID=59726405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710271470.5A Pending CN107120666A (en) | 2017-04-24 | 2017-04-24 | One kind spraying exhaust gas purifying method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120666A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579265A (en) * | 2018-03-09 | 2018-09-28 | 航天凯天环保科技股份有限公司 | A kind of drum-type coating cloud dry filtration device |
| CN110332555A (en) * | 2019-07-08 | 2019-10-15 | 湖北科谱瑞环境资源科技有限公司 | A kind of monoblock type catalytic combustion device for organic waste gases |
| CN117258429A (en) * | 2023-09-21 | 2023-12-22 | 韶关市力高机械制造有限公司 | Air purifying equipment and air purifying method for online automatic powder spraying |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265353A (en) * | 1975-11-27 | 1977-05-30 | Toyota Motor Corp | Paint drying oven |
| CN102389684A (en) * | 2011-10-14 | 2012-03-28 | 中科同创（厦门）环境科技有限公司 | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent |
| CN203764077U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清艾卡蒙特涂装设备有限公司 | Waste gas treatment device of coating equipment |
| CN204319961U (en) * | 2014-12-09 | 2015-05-13 | 江苏骠马智能装备股份有限公司 | A kind of paint spray booth waste gas purification electricity generation system |
| CN205746912U (en) * | 2016-06-28 | 2016-11-30 | 江苏莱仕达环保成套设备有限公司 | A kind of VOCs organic waste gas treatment equipment |
| CN106563343A (en) * | 2015-10-10 | 2017-04-19 | 余姚市婉珍五金厂 | Method for purifying and treating spray paint waste gas |
-
2017
- 2017-04-24 CN CN201710271470.5A patent/CN107120666A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265353A (en) * | 1975-11-27 | 1977-05-30 | Toyota Motor Corp | Paint drying oven |
| CN102389684A (en) * | 2011-10-14 | 2012-03-28 | 中科同创（厦门）环境科技有限公司 | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent |
| CN203764077U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清艾卡蒙特涂装设备有限公司 | Waste gas treatment device of coating equipment |
| CN204319961U (en) * | 2014-12-09 | 2015-05-13 | 江苏骠马智能装备股份有限公司 | A kind of paint spray booth waste gas purification electricity generation system |
| CN106563343A (en) * | 2015-10-10 | 2017-04-19 | 余姚市婉珍五金厂 | Method for purifying and treating spray paint waste gas |
| CN205746912U (en) * | 2016-06-28 | 2016-11-30 | 江苏莱仕达环保成套设备有限公司 | A kind of VOCs organic waste gas treatment equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579265A (en) * | 2018-03-09 | 2018-09-28 | 航天凯天环保科技股份有限公司 | A kind of drum-type coating cloud dry filtration device |
| CN108579265B (en) * | 2018-03-09 | 2020-11-24 | 航天凯天环保科技股份有限公司 | Drum-type paint mist dry-method filtering device |
| CN110332555A (en) * | 2019-07-08 | 2019-10-15 | 湖北科谱瑞环境资源科技有限公司 | A kind of monoblock type catalytic combustion device for organic waste gases |
| CN110332555B (en) * | 2019-07-08 | 2021-12-14 | 湖北科谱瑞环境资源科技有限公司 | Integral organic waste gas catalytic combustion device |
| CN117258429A (en) * | 2023-09-21 | 2023-12-22 | 韶关市力高机械制造有限公司 | Air purifying equipment and air purifying method for online automatic powder spraying |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |