CN102535070A - Complete energy-saving purification unit for flue gas of printing, dyeing and setting machine and purification method for flue gas of printing, dyeing and setting machine - Google Patents
Complete energy-saving purification unit for flue gas of printing, dyeing and setting machine and purification method for flue gas of printing, dyeing and setting machine Download PDFInfo
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- CN102535070A CN102535070A CN2011103627656A CN201110362765A CN102535070A CN 102535070 A CN102535070 A CN 102535070A CN 2011103627656 A CN2011103627656 A CN 2011103627656A CN 201110362765 A CN201110362765 A CN 201110362765A CN 102535070 A CN102535070 A CN 102535070A
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Abstract
The invention provides a complete energy-saving purification unit for flue gas of a printing, dyeing and setting machine and a purification method for flue gas of the printing, dyeing and setting machine. The purification unit comprises a filter, an air preheater and a purification column, wherein a plurality of filter nets are disposed in the filter in the flowing direction of the flow gas and can be used for filtering most of grease and cotton flock, the air preheater is a heat exchanger with heat exchange pipes and used for heating cold air by the aid of hot flue gas, and the purification column is provided with a cooling water pipe and a waste collector. When used with the printing, dyeing and setting machine, the complete energy-saving purification unit is capable of effectively reusing heat of the flue gas and effectively recycling harmful substances in the flue gas. Therefore, energy consumption of the printing, dyeing and setting machine can be lowered, environment pollution by emission of the flue gas can also be reduced, waste is turned into wealth, certain economic benefit is achieved by collecting and reusing the emitted harmful substances, and production cost is economized.
Description
Technical field
The present invention relates to a kind of energy-saving and cost-reducing technical field, particularly a kind of dying setting machine flue gas energy-saving and purifying complete equipments and purification method.
Background technology
Along with more and more faster increasingly high with industrialization degree of the step of nearest decades of whole world industrialization progress, for the demand of traditional fossil fuel with consume also sharply increase, on the one hand, aggravated the exhausted speed of non-renewable fossil fuel; On the other hand, the greenhouse gases that the use of fossil fuel is discharged also make the global environmental pollution aggravation, and ecological environment goes from bad to worse.These problems have caused the concern of global national governments and enterprise, and power-saving technology and renewable energy technologies have obtained the attention of more and more countries and enterprise.Therefore, under current energy-intensive overall background, all trades and professions are tried one's best invariably and are carried out energy-saving and cost-reducing activity by every means, improve the industrial model of original high energy consumption.And this reform and opening-up in thirties years of China when economy obtains significant achievements, has also been paid the heavy cost of severe environmental pollution; So governments at all levels of current both the central and local governments are all in transition of carrying forward vigorously economic structure and adjustment; Pursue and save energy and reduce the cost, the industry pattern of protection environment.
The dyeing that present patent application is related; Since closely bound up with people's life, also be the traditional larger economic industry of China, when the dress that makes people beautifies; Also consumed a large amount of energy; Simultaneously because dyeing when industry size constantly enlarges and advances, has also polluted a large amount of precious water resource and atmosphere.
In dyeing, dying setting machine is indispensable production equipment.Dyeing machine can discharge a large amount of waste gas when operation; Its exhaust gas discharged not only contains volume of smoke; Also have polyphenyl type organic, printing and dyeing assistant, the multiple composition of wet goods simultaneously, every general discharged particle 150-250mg/m3 of setting machine, oil smoke 40-80mg/m3.The oil that is discharged, cigarette, dirt all have very big harm to human body health and environment.
Summary of the invention
To the problems of the prior art, the present invention proposes a kind of flue gas energy-saving and purifying complete equipments, is used for the supporting a large amount of setting machines that use of dyeing that are applied in; Be intended to reduce the smoke evacuation of setting machine; And can the preheating cold air, purify the setting machine smoke evacuation, and reclaim the grease/tar in the flue gas.
For reaching the object of the invention, flue gas energy-saving and purifying complete equipments of the present invention comprise filter, air preheater and purifying column; Be provided with the multiple tracks filter screen along the flue gas flow direction in the wherein said filter, can filter out big portion grease and velveteen; Said air preheater is to be provided with the heat exchanger with heat exchanger tube, utilizes hot flue gas heating cold air; Said purifying column is provided with cooling water pipe, and waste collector.
Preferably, in said filter, timing water injector is housed, drenches screen pack, prevent to be deposited in velveteen on the filter screen because of electrostatic fire.
Preferred again, the filter screen of said filter adopts the steel silk screen.
Preferred again, for strengthening heat exchange, heat exchanger tube adopts the finned tube of generally popular use, can reduce the profile and the weight of air preheater like this, for the user practices thrift cost.
Of the present invention utilize described flue gas energy-saving and purifying complete equipments carry out with setting machine supporting the heat energy that is used for carrying out flue gas is utilized again and the flow process of waste collection following:
The flue gas that comes from setting machine is at first through filter, and the strainer filtering of filter falls most grease and velveteen; Flue gas is behind filter; Get into air preheater, cold air carries out heat exchange from the air inlet entering of air preheater through heat exchanger tube and carries out the flue-gas temperature cooling, and the gas after heating flows out the confession setting machine from outlet to be used; With the increase heat energy utilization, and the energy consumption that can save setting machine; Flue gas gets into purifying column through behind the air preheater, and this moment, flue gas still had than higher temperature, through inner cooling water pipe and waste collector; On one side the temperature with flue gas further reduces, and it is discharged from the top of purifying column with lower temperature (being generally below 60 ℃), and harmful substances such as contained aldehyde, ketone, hydrocarbon, aliphatic acid, alcohol, ester, lactone, heterocyclic compound, aromatic compound in the setting machine discharged flue gas; Through the inner waste collector of supercooling and purifying column and moisture, cotton-wool etc. together, condensed by major part; Again through after the road separating technology; With water, cotton-wool, organic matter further separates; Organic matter in the isolated end product is taken on the market and is sold, and obtains economic interests; The water of heating also can utilize again.
Flue gas energy-saving and purifying complete equipments of the present invention; When cooperating setting machine to use, can effectively carry out the utilization again of flue gas heat, effectively reclaim contained harmful substance in the flue gas simultaneously; Not only can reduce the energy consumption of setting machine, also reduce fume emission pollution on the environment problem; And can turn waste into wealth, the harmful substance of discharging is collected and utilization again, obtain the certain economic interests, save production cost.
Description of drawings
Through the detailed description below in conjunction with accompanying drawing, aforesaid purpose, the feature and advantage with other of the present invention will become obvious.Wherein:
Shown in Figure 1 is the structural representation of flue gas energy-saving and purifying complete equipments of the present invention;
The schematic flow sheet of flue when to be that flue gas energy-saving and purifying complete equipments of the present invention and dying setting machine are supporting use shown in Figure 2.
The specific embodiment
Shown in Figure 1 is the flue gas energy-saving and purifying corollary apparatus of one embodiment of the invention, and in conjunction with technological process for flue gas purification shown in Figure 2, the flue gas energy-saving and purifying corollary apparatus of dying setting machine of the present invention comprises filter 10, air preheater 20 and purifying column 30; Be provided with the filter screen 12 that the multiple tracks steel wire constitutes along the flue gas flow direction in the wherein said filter 10, it can filter out big portion grease and velveteen; In addition preferred, can simultaneously timing water injector 14 be housed in filter 10, drench filter screen, prevent to be deposited in velveteen on the filter screen 12 because of electrostatic fire; Use finned tube 22,24 as heat-exchange tube in the said air preheater 20; Cold air gets into from air inlet 26, and after exchanging with fin tube heat, the hot-air after the heating is 28 discharges from the gas outlet; Directly pass to the setting machine place, for setting machine provides the required hot gas of work to reduce the energy consumption of setting machine; The flue gas that then temperature is reduced gets into purifying column; Purifying column 30 comprises the cooling water pipe 36 that perisporium is provided with; And waste collector 32; Cooling water gets into from cooling water pipe 36 import A, and flue gas is through after further cooling off, and the harmful substance overwhelming majority such as contained aldehyde, ketone, hydrocarbon, aliphatic acid, alcohol, ester, lactone, heterocyclic compound, aromatic compound are condensed out through the inner waste collector 32 of purifying column; Be collected together with moisture, cotton-wool etc.; The harmful substance that condenses can further be separated through road separating technology later, and the organic matter in the isolated end product can be taken on the market and sell, and obtains the certain economic interests; Water through heating flows out from outlet B in addition, can also utilize again; Final cooled smoke is discharged through exhaust gases passes 34.
In sum, utilizing above-mentioned flue gas energy-saving and purifying corollary apparatus to handle in practical application example of discharging flue gas of dying setting machine, through measuring and calculating, a setting machine exhaust smoke level is 20000Nm
3/ h, 180 ℃ hot flue gas advances air preheater, and the cigarette temperature drop is 120 ℃ after heat exchange, but heats cold air 16000Nm
3/ h makes it to be elevated to 93 ℃ from 20 ℃, by 190 ℃ of setting machine operating temperatures, is equivalent to save 34% energy consumption for setting machine; And 120 ℃ flue gas after the heat exchange of process air preheater is 60 ℃ through the final exhaust gas temperature behind the purifying column, can make 21t/h water be warmed up to 40 ℃ from 20 ℃.From whole flue gas result, smoke evacuation drops to 60 ℃ from 180 ℃, is equivalent to for the user saves the 172kg/h standard coal, in 1 year 300 working day, is equivalent to save 1238t mark coal for the user.On the other hand, the setting machine smoke evacuation is handled through this covering device, can also produce a certain amount of grease byproduct, produces economic benefit.
After flue gas energy-saving and purifying corollary apparatus configuration of the present invention is installed to setting machine; The gas sampling rate reaches to more than 90%; The clearance of total particulate reaches 90%, and the oil droplet clearance reaches 90%, makes smoke evacuation can reach GB16297--1996 [discharge standard of air pollutants] and GB14554-93 [odorant pollutant discharge standard] secondary standard; Non-secondary pollution produces good environment and social effect.
The present invention is not limited to described embodiment, and those skilled in the art still can do some corrections or change, so rights protection scope of the present invention is as the criterion with claims restricted portion not breaking away from spirit of the present invention promptly openly in the scope.
Claims (6)
1. dying setting machine flue gas energy-saving and purifying complete equipments is characterized in that it comprises filter, air preheater and purifying column; Be provided with the filter screen that multiple tracks is filtered grease and velveteen along the flue gas flow direction in the wherein said filter; Said air preheater is to be provided with the heat exchanger with heat exchanger tube, utilizes hot flue gas heating cold air; Be provided with cooling water pipe and waste collector in the said purifying column.
2. a kind of dying setting machine flue gas energy-saving and purifying complete equipments as claimed in claim 1 is characterized in that, in said filter, timing water injector are housed.
3. a kind of dying setting machine flue gas energy-saving and purifying complete equipments as claimed in claim 1 is characterized in that the filter screen of said filter is the steel silk screen.
4. a kind of dying setting machine flue gas energy-saving and purifying complete equipments as claimed in claim 1 is characterized in that the heat exchanger tube of said air preheater is a finned tube.
5. the flue gas purifying method of a dying setting machine, said dying setting machine is equipped with and is equipped with like each described flue gas energy-saving and purifying complete equipments of claim 1 to 4, carries out the heat energy utilization and the purification of setting machine discharging flue gas, and said purification method comprises:
The flue gas that comes from setting machine is at first through said filter, and the strainer filtering through filter falls most grease and velveteen;
Flue gas gets into said air preheater behind filter, cold air gets into from the air inlet of air preheater, carries out heat exchange to flue gas cool-down through said heat exchanger tube, and the gas after heating flows out from outlet and supplies setting machine to use; And
Flue gas gets into purifying column through behind the air preheater; Through inner cooling water pipe and waste collector; Flue-gas temperature is further reduced the back discharge from the top of purifying column, and harmful substances such as contained aldehyde, ketone, hydrocarbon, aliphatic acid, alcohol, ester, lactone, heterocyclic compound, aromatic compound in the setting machine discharged flue gas, through the waste collector of supercooling with purifying column inside; With moisture, cotton-wool etc. together, collection is condensed.
6. the flue gas purifying method of dying setting machine as claimed in claim 5 is characterized in that, also comprises road, back separating technology, and the organic matter that will pass through the purifying column condensation and collection further separates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103627656A CN102535070A (en) | 2011-11-14 | 2011-11-14 | Complete energy-saving purification unit for flue gas of printing, dyeing and setting machine and purification method for flue gas of printing, dyeing and setting machine |
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| CN2011103627656A CN102535070A (en) | 2011-11-14 | 2011-11-14 | Complete energy-saving purification unit for flue gas of printing, dyeing and setting machine and purification method for flue gas of printing, dyeing and setting machine |
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| CN102535070A true CN102535070A (en) | 2012-07-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285699A (en) * | 2013-05-30 | 2013-09-11 | 浙江莱美纺织印染科技有限公司 | Device for waste heat recovery and purification treatment for waste gas of setting machine |
| CN103480222A (en) * | 2013-08-29 | 2014-01-01 | 鞍山灯塔冶金工程有限公司 | Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method |
| CN104056525A (en) * | 2014-06-04 | 2014-09-24 | 福建光明星能源环保有限公司 | Multi-section grading wet treating device for waste gas of printing and dyeing setting machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285699A (en) * | 2013-05-30 | 2013-09-11 | 浙江莱美纺织印染科技有限公司 | Device for waste heat recovery and purification treatment for waste gas of setting machine |
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| CN103480222B (en) * | 2013-08-29 | 2015-04-08 | 鞍山灯塔冶金工程有限公司 | Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method |
| CN104056525A (en) * | 2014-06-04 | 2014-09-24 | 福建光明星能源环保有限公司 | Multi-section grading wet treating device for waste gas of printing and dyeing setting machine |
| CN104056525B (en) * | 2014-06-04 | 2016-08-24 | 福建光明星能源环保有限公司 | Dying setting machine waste gas multistage classification wet type processing device |
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Application publication date: 20120704 |