CN108980864A - A kind of coating waste gas heat utilization method - Google Patents
A kind of coating waste gas heat utilization method Download PDFInfo
- Publication number
- CN108980864A CN108980864A CN201810830728.5A CN201810830728A CN108980864A CN 108980864 A CN108980864 A CN 108980864A CN 201810830728 A CN201810830728 A CN 201810830728A CN 108980864 A CN108980864 A CN 108980864A
- Authority
- CN
- China
- Prior art keywords
- gas
- exhaust gas
- heat
- utilization method
- waste 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.)
- Pending
Links
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
-
- 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
- B01D53/14—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 by absorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
Abstract
The present invention relates to a kind of coating waste gas heat utilization methods, comprising the following steps: Step 1: being dusted processing to exhaust gas, removes the large dust particle in exhaust gas；Step 2: carrying out full combustion to exhaust gas, by combustion heat release amount, part pernicious gas in exhaust gas is removed；Step 3: the heat in exhaust gas is recycled, make 10 ~ 15 DEG C of exhaust gas temperature of outflow；Remaining organic gas in exhaust gas is removed Step 4: exhaust gas is passed through in organic solvent.The present invention discharges the heat in exhaust gas by burning waste gas, then makes full use of to heat, energy saving, and the part pernicious gas that can go out.
Description
Technical field
The present invention relates to a kind of residual-heat utilization method more particularly to a kind of coating waste gas heat utilization methods.
Background technique
It is containing including such as toluene, dichloropropane, two as discharged organic compounds in coating production process
A variety of object mixed gas such as chloroethanes, methanol, ortho-chlorotolu'ene.Organic compounds not only contain including such as toluene, dichloropropane, two
A variety of object ingredients such as chloroethanes, methanol, ortho-chlorotolu'ene, there is also vapor and a small amount of solid or liquid particles.
Since among coating production process, production is generally persistently carried out in the condition of high temperature, so what is released is organic
Object high exhaust temperatures are about 60 DEG C, reduce heat in organic exhaust gas and make full use of heat for reducing cost with great
Meaning.Contain a large amount of combustible organics in exhaust gas, these organic matters, which flow into atmosphere, will cause pollution.
Summary of the invention
It is an object of the invention to: it makes full use of the heat in exhaust gas and is reached by the combustible organic in burning waste gas
The release of heat and the processing of pernicious gas.
The technical solution used in the present invention are as follows: a kind of coating waste gas heat utilization method includes the following steps
Step 1 is dusted processing to exhaust gas, removes the large dust particle in exhaust gas；
Step 2 carries out full combustion to exhaust gas, by combustion heat release amount, removes part pernicious gas in exhaust gas；
Step 3 recycles the heat in exhaust gas, makes 10 ~ 15 DEG C of exhaust gas temperature of outflow；
Exhaust gas is passed through in organic solvent by step 4 removes remaining organic gas in exhaust gas.
Further, the step 3 is divided into two steps
A exchanges heat exhaust gas by gas-gas, and the air after heating is passed through in coating machine and is recycled；Exhaust gas is passed through water-gas by b
Heat exchange is cooled down twice, and the water after heating is passed through hot water supply water pipe.
Further, the air after gas-to-gas heat exchanger heats is passed through drying equipment.
Further, waste gas burning reaction carries out in the combustion chamber.
Further, burning room pressure is lower than 1.2 atmospheric pressure.
Further, the organic solvent is ethyl alcohol.
Beneficial effect caused by the present invention includes: the present invention by the heat in burning waste gas release exhaust gas, then right
Heat is made full use of, energy saving, and the part pernicious gas that can go out.
Specific embodiment
Further details of explanation is done to the present invention With reference to embodiment, it should be appreciated that of the invention
Protection scope be not limited by the specific implementation.
One of present invention coating waste gas heat utilization method, includes the following steps
Step 1 is dusted processing to exhaust gas, removes the large dust particle in exhaust gas；
Step 2 carries out full combustion to exhaust gas, by combustion heat release amount, removes part pernicious gas in exhaust gas；
Step 3 recycles the heat in exhaust gas, makes 10 ~ 15 DEG C of exhaust gas temperature of outflow；
Exhaust gas is passed through in organic solvent by step 4 removes remaining organic gas in exhaust gas.
Further, the step 3 is divided into two steps
A exchanges heat exhaust gas by gas-gas, and the air after heating is passed through in coating machine and is recycled；Exhaust gas is passed through water-gas by b
Heat exchange is cooled down twice, and the water after heating is passed through hot water supply water pipe.
Further, the air after gas-to-gas heat exchanger heats is passed through drying equipment.
Further, waste gas burning reaction carries out in the combustion chamber.
Further, burning room pressure is lower than 1.2 atmospheric pressure, which is safe air pressure, more than may then produce
Raw explosion.
Further, the organic solvent is ethyl alcohol.
The present invention discharges the heat in exhaust gas by burning waste gas, then makes full use of to heat, energy saving, and
Can go out part pernicious gas.
The above is only a preferred embodiment of the present invention, and the present invention is not limited in the content of embodiment.For in this field
Technical staff for, can have various change and change within the scope of technical solution of the present invention, made any variation and
Change, within that scope of the present invention.
Claims (6)
1. a kind of coating waste gas heat utilization method, it is characterised in that: include the following steps
Step 1 is dusted processing to exhaust gas, removes the large dust particle in exhaust gas；
Step 2 carries out full combustion to exhaust gas, by combustion heat release amount, removes part pernicious gas in exhaust gas；
Step 3 recycles the heat in exhaust gas, makes 10 ~ 15 DEG C of exhaust gas temperature of outflow；
Exhaust gas is passed through in organic solvent by step 4 removes remaining organic gas in exhaust gas.
2. coating waste gas heat utilization method according to claim 1, it is characterised in that: the step 3 is divided into two steps
A exchanges heat exhaust gas by gas-gas, and the air after heating is passed through in coating machine and is recycled；Exhaust gas is passed through water-gas by b
Heat exchange is cooled down twice, and the water after heating is passed through hot water supply water pipe.
3. coating waste gas heat utilization method according to claim 2, it is characterised in that: after gas-to-gas heat exchanger heats
Air be passed through drying equipment.
4. coating waste gas heat utilization method according to claim 1, it is characterised in that: waste gas burning is reacted in combustion chamber
Interior progress.
5. coating waste gas heat utilization method according to claim 4, it is characterised in that: burning room pressure is lower than 1.2
A atmospheric pressure.
6. coating waste gas heat utilization method according to claim 1, it is characterised in that: the organic solvent is ethyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830728.5A CN108980864A (en) | 2018-07-26 | 2018-07-26 | A kind of coating waste gas heat utilization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830728.5A CN108980864A (en) | 2018-07-26 | 2018-07-26 | A kind of coating waste gas heat utilization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980864A true CN108980864A (en) | 2018-12-11 |
Family
ID=64551424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810830728.5A Pending CN108980864A (en) | 2018-07-26 | 2018-07-26 | A kind of coating waste gas heat utilization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980864A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001349524A (en) * | 2000-06-09 | 2001-12-21 | Ishikawajima Harima Heavy Ind Co Ltd | Catalytic combustion type gas cleaner |
| CN2853193Y (en) * | 2005-07-14 | 2007-01-03 | 中冶连铸技术工程股份有限公司 | Baking device with steel coating |
| CN105674300A (en) * | 2014-11-19 | 2016-06-15 | 戴礼礼 | Gaseous pollutant purification treatment system |
-
2018
- 2018-07-26 CN CN201810830728.5A patent/CN108980864A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001349524A (en) * | 2000-06-09 | 2001-12-21 | Ishikawajima Harima Heavy Ind Co Ltd | Catalytic combustion type gas cleaner |
| CN2853193Y (en) * | 2005-07-14 | 2007-01-03 | 中冶连铸技术工程股份有限公司 | Baking device with steel coating |
| CN105674300A (en) * | 2014-11-19 | 2016-06-15 | 戴礼礼 | Gaseous pollutant purification treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20181211 |