CN102430723A - Triethylamine gas producing and recycling system - Google Patents
Triethylamine gas producing and recycling system Download PDFInfo
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- CN102430723A CN102430723A CN2011104402965A CN201110440296A CN102430723A CN 102430723 A CN102430723 A CN 102430723A CN 2011104402965 A CN2011104402965 A CN 2011104402965A CN 201110440296 A CN201110440296 A CN 201110440296A CN 102430723 A CN102430723 A CN 102430723A
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- triethylamine
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Abstract
The invention provides a triethylamine gas producing and recycling system which comprises a high-pressure air pump, a triethylamine gas producer, an air blowing plate, a tail gas collecting box, a draught fan and at least two flexible tail gas collecting bags. One flexible tail gas collecting bag is arranged in a rigid shell, and an electric joint pressure gage is arranged at the bottom of the rigid shell; the bottom of each flexible tail gas collecting bag is connected with the air inlet of the high-pressure air pump through an extraction valve on one hand and also is connected with the draught fan through an inflation valve on the other hand; the high-pressure air pump, the triethylamine gas producer and the air blowing plate are sequentially connected together through pipelines; and the draught fan is connected with the tail gas collecting box. During practical implementation, the air blowing plate is arranged above a core box, and the tail gas collecting box is arranged below the core box. The triethylamine gas producing and recycling system disclosed by the invention has the gas producing and recycling functions, and can be used for realizing the recycle of the triethylamine, reducing the cost and pollution and realizing the purposes of energy conservation and consumption and emission reduction fundamentally.
Description
Technical field
The present invention relates to a kind of catalytic gas that is used for the triethylamine method cold core box coremaking equipment of Foundry Production and take place and the recycle device, belong to the catalytic gas operation technique field in the Casting Equipment.
Background technology
In present triethylamine method cold core box coremaking was produced, the generation of triethylamine gas and tail gas (being blown into the gas of discharging behind the core box) collection and treatment was accomplished through aerogenerator of triethylamine and triethylamine scrubbing tower.Aerogenerator of triethylamine is with Electric heating liquid amine to be converted into gaseous state amine, and is that carrier is blown into core box and makes the core sclerosis with compressed air; In the core hardening process, triethylamine is that catalyst is not participated in reaction, and the gas that is blown into core box is discharged formation tail gas from the venting plug of bottom, and the tail gas that contains triethylamine is discharged atmosphere in the blower fan introducing scrubbing tower after the phosphate aqueous solution neutralisation treatment.In this processing procedure, the acid pump of air-introduced machine and scrubbing tower is also followed the continuous consumption of triethylamine and acid solution when energy consumption takes place, and bigger problem is that the discharging of waste liquid that produces with the back in triethylamine and the acid solution will produce secondary pollution.
Summary of the invention
The present invention is directed to the raw material continuous consumption and the emission pollution problem that exist in the present triethylamine method cold core box coremaking production; Make full use of triethylamine only plays catalytic action, do not participate in chemical reaction in the core hardening process characteristics; Provide a kind of triethylamine gas to take place and cyclic utilization system, this system possesses gas and takes place and the recycling function, can realize the recycle of triethylamine; Fundamentally reduce material consumption, reduced the dusty gas discharging significantly.
Triethylamine gas of the present invention takes place to adopt following technical solution with cyclic utilization system:
This triethylamine gas takes place and cyclic utilization system, comprises high-pressure pump, aerogenerator of triethylamine, air blowing plate, exhaust collection case, air-introduced machine and flexible exhaust collection capsule; Flexible exhaust collection capsule is provided with two at least, and a flexible exhaust collection capsule is arranged in the outer rigid housing, and the bottom of outer rigid housing is provided with electro connecting pressure gauge; The bottom of each flexible exhaust collection capsule is connected with the air inlet of high-pressure pump through extraction valve on the one hand, is connected with air-introduced machine through charge valve on the other hand; High-pressure pump, aerogenerator of triethylamine and air blowing plate are connected in turn through pipeline; Air-introduced machine is connected with the exhaust collection case.
Outer rigid housing is provided with pneumostome, so that free wxpansion of flexible exhaust collection capsule and contraction.
On the connecting line between charge valve and the air-introduced machine and be connected to the exhaust branch road, the exhaust branch road is provided with flue gas valve and chimney.
Be connected with air accumulator intake valve, air accumulator and air accumulator air outlet valve between high-pressure pump and the aerogenerator of triethylamine, between air accumulator air outlet valve and the aerogenerator of triethylamine and be connected to the high-pressure air source arm, the high-pressure air source arm is provided with the source of the gas valve.
Aerogenerator of triethylamine can adopt Chinese patent CN2008101399511 disclosed " aerogenerator of triethylamine "; This aerogenerator of triethylamine comprises and quantitatively adds amine device and vaporizer; Liquid triethylamine gets into by quantitatively adding the amine device; Be blown into vaporizer through pressure-air, vaporizer is with liquid amine heating vaporization.
Flexible exhaust collection capsule is arranged in the outer rigid housing, can make the triethylamine tail gas of high concentration be deposited on the bottom, is beneficial to the core sclerosis when second decimation utilizes, and the tail gas of low concentration gets into core box at last on top, be beneficial to the cleaning core like this.
During concrete the application, the air blowing plate is pressed on the top of core box, the exhaust collection case is arranged on the below of core box.System's each valve before operation all is in closed condition, open earlier whole extraction valves with each flexible exhaust collection capsule through the high-pressure pump state that is evacuated, the gas storage that high-pressure pump is extracted out is in gas bag.When blowing amine for the first time; Open the high-pressure air source valve; Starting the core of aerogenerator of triethylamine in core box blows; Through air-introduced machine will blow amine in the phase the higher tail gas of amine concentration introduce in first flexible exhaust collection capsule, again that amine concentration in the air blowing cleaning phase is lower tail gas is introduced in second flexible exhaust collection capsule; When second core in core box blown once more; Close high-pressure air source, start high-pressure pump and gas bag, use tail gas with higher amine concentration and the gas bag inner high voltage gas in first flexible exhaust collection capsule earlier and add a small amount of triethylamine to be blown into core together; Make its sclerosis; Second core blown the tail gas of amine hardening period generation and introduce in the 3rd the flexible exhaust collection capsule, the air blowing cleaning phase is extracted the gas in second flexible exhaust collection capsule, and the tail gas of generation is introduced in the 4th the flexible exhaust collection capsule; The final cleaning starts high-pressure air source and high altitude discharge chimney, with the tail gas high altitude discharge of extremely low concentration.So recycle, blow under the prerequisite that amine sclerosis and air blowing cleaning require satisfying core, realized the recycle of triethylamine, reduced the triethylamine consumption, reduced triethylamine exhaust emissions amount.
The present invention possesses gas and takes place and recycle function, has realized the recycle of triethylamine, has reduced cost, has avoided the generation secondary pollution, fundamentally realizes energy-conservation, consumption reduction, reduces discharging.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Among the figure: 1, high-pressure pump, 2, air accumulator, 3, aerogenerator of triethylamine, 4, the air blowing plate, 5, the exhaust collection case; 6, core box, 7, air-introduced machine, 8, chimney, 9, charge valve, 10, the first flexible exhaust collection capsule; 11, extraction valve, 12, electro connecting pressure gauge, 13, outer rigid housing, 14, pneumostome; 15, air outlet valve, 16, the flue gas valve, 17, the second flexible exhaust collection capsule, the 18, the 3rd flexible exhaust collection capsule; 19, the 4th flexible exhaust collection capsule, 20, intake valve, 21, the high-pressure air source arm, 22, the source of the gas valve.
The specific embodiment
As depicted in figs. 1 and 2, triethylamine gas of the present invention takes place to comprise high-pressure pump 1, aerogenerator of triethylamine, air blowing plate 4, exhaust collection case 5, air-introduced machine 7 and flexible exhaust collection capsule with the recycle device.Flexible exhaust collection capsule is provided with two at least, is provided with four among Fig. 2, is respectively first flexible exhaust collection capsule 10, second flexible exhaust collection capsule the 17, the 3rd flexible exhaust collection capsule the 18, the 4th flexible exhaust collection capsule 19.Each flexible exhaust collection capsule is arranged in the outer rigid housing 13, and the top of outer rigid housing 13 is provided with pneumostome 14, so that free wxpansion of flexible exhaust collection capsule and contraction.The bottom of each capsule is provided with electro connecting pressure gauge 12.The bottom of each capsule is connected with high-pressure pump 1 through extraction valve on the one hand, is connected with air-introduced machine 7 through charge valve on the one hand.Be connected with the exhaust branch road on the connecting line between charge valve and the air-introduced machine 7, the exhaust branch road is provided with flue gas valve 16 and chimney 8.High-pressure pump 1, aerogenerator of triethylamine 3 and air blowing plate 4 are connected in turn; Be connected with air accumulator 2 between high-pressure pump 1 and the aerogenerator of triethylamine 3; Air accumulator 2 front and back are provided with intake valve 20 and air outlet valve 15; Between air outlet valve 15 and the aerogenerator of triethylamine 3 and be connected to high-pressure air source arm 21, high-pressure air source arm 21 is provided with source of the gas valve 22.High-pressure air source arm 21 is connected with high-pressure air source.The gases at high pressure that high-pressure pump 1 produces can store through air accumulator 2, and for guaranteeing safety, air accumulator 2 is provided with safe overflow valve.Aerogenerator of triethylamine can adopt Chinese patent CN2008101399511 disclosed " aerogenerator of triethylamine "; This aerogenerator of triethylamine comprises and quantitatively adds amine device and gasifier; Liquid triethylamine gets into by quantitatively adding the amine device; Be blown into gasifier through pressure-air, gasifier is with liquid amine heating and gasifying.Air-introduced machine 7 is connected with exhaust collection case 5, is provided with screen pack in the exhaust collection case 5.During concrete the application, air blowing plate 4 is placed the top of core box 6, exhaust collection case 5 is arranged on the below of core box 6.
Above-mentioned triethylamine gas takes place with the running of recycle device following:
System is before operation, and all valves all are in closed condition.Start earlier high-pressure pump 1, open the extraction valve of each flexible exhaust collection capsule and the intake valve 20 of air accumulator 2,, close the intake valve 20 of each extraction valve and air accumulator 2 then each flexible exhaust collection capsule state that is evacuated.Open source of the gas valve 22 again; Make the compressed air in the high-pressure air source get into aerogenerator of triethylamine 3 through high-pressure air source arm 21, liquid triethylamine is got into by the amine device that quantitatively adds in the aerogenerator of triethylamine, is blown into gasifier by compressed air; Gasifier is with liquid amine heating and gasifying; The gaseous state triethylamine blows amine through air blowing plate 4 first core in core box 6, and the amine tail gas of higher concentration gets into exhaust collection case 5, and the screen pack in exhaust collection case 5 filters the sand grains that blows off.Blow amine and begin the charge valve 9 that the back starts air-introduced machine 7 and opens the first flexible exhaust collection capsule 10, the amine tail gas of higher concentration is introduced in the first flexible exhaust collection capsule 10 by exhaust collection case 5.When blowing the amine time when finishing; Close and quantitatively add amine device 2; The cleaning core continues to blow; When first flexible exhaust collection capsule 10 reaches capacity state, depress electro connecting pressure gauge 12 senders of its outer rigid housing 13 bottoms, the charge valve 9 of the first flexible exhaust collection capsule 10 is closed, the charge valve that connects second flexible exhaust collection capsule 17 is simultaneously opened.When second flexible exhaust collection capsule 17 reaches capacity state; Second flexible exhaust collection capsule 17 depressed the electro connecting pressure gauge sender of its outer rigid housing bottom; The charge valve that connects second flexible exhaust collection capsule 17 is closed; The valve of flue gas simultaneously 16 is opened, and the tail gas of the last extremely low concentration of high altitude discharge is accomplished last the cleaning to first core.Close source of the gas valve 22 then.
When second core blown amine, open the extraction valve 11 of the first flexible exhaust collection capsule 10, high-pressure pump 1 starts simultaneously, and aerogenerator of triethylamine 3 starts, and adds the amine amount and sets 20% of the amine amount that adds for the first time.High-pressure pump 1 is pressed into aerogenerator of triethylamine 3 gasifications with 20% the amine gas that contains of the amine amount that adds in the first flexible exhaust collection capsule 10; Be blown in second core in the core box 6 through air blowing plate 4; At this moment tail gas air-introduced machine 7 is opened; The charge valve of the 3rd flexible exhaust collection capsule 18 is opened; Depress the electro connecting pressure gauge sender of its outer rigid housing bottom when the 3rd flexible exhaust collection capsule 18 reaches capacity, the charge valve of the 3rd flexible exhaust collection capsule 18 is closed, and close the extraction valve 11 of the first flexible exhaust collection capsule 10.The charge valve of the extraction valve of the second flexible exhaust collection capsule 17 and the 4th flexible exhaust collection capsule 19 is opened; Core gets into wash phase; When reaching capacity, depresses by the 4th flexible exhaust collection capsule 19 the electro connecting pressure gauge sender of its outer rigid housing bottom; High-pressure pump is 1 out of service, the outlet valve 15 of the extraction valve of the second flexible exhaust collection capsule and air accumulator 2 cuts out, the charge valve of the 4th flexible exhaust collection capsule 19 is closed; Open source of the gas valve 22 and flue gas valve 16 simultaneously, core is carried out last high-pressure wash, close source of the gas valve 22 and flue gas valve 16 subsequently.
When the 3rd core blown amine, the extraction valve of the 3rd flexible exhaust collection capsule 18 was opened, and high-pressure pump 1 starts simultaneously, and aerogenerator of triethylamine 3 starts, and added the amine amount and set 20% of the amine amount that adds for the first time.High-pressure pump 1 is pressed into the amine gas that contains in 20% the amine amount that adds and the 3rd flexible exhaust collection capsule 18 aerogenerator of triethylamine 3 and is blown in the 3rd core in the core box 6 with air blowing plate 4 again.Air-introduced machine 7 is opened; The charge valve 1 of the first flexible exhaust collection capsule 10 is opened; When reaching capacity, depresses by the first flexible exhaust collection capsule 10 the electro connecting pressure gauge sender of its outer rigid housing bottom; The charge valve of the first flexible exhaust collection capsule 10 and the 3rd flexible exhaust collection capsule 18 extraction valves are closed, and the charge valve of the extraction valve of the 4th flexible exhaust collection capsule 19 and the second flexible exhaust collection capsule 17 is opened.Core gets into wash phase; When second flexible exhaust collection capsule 17 capsules are saturated; The outlet valve 15 of extraction valve, high-pressure pump 1 and the air accumulator 2 of second flexible exhaust collection capsule 17 charge valves and the 4th flexible exhaust collection capsule 19 cuts out; Source of the gas valve 22 is opened with flue gas valve 16 simultaneously, and core is carried out last high-pressure wash, closes source of the gas valve 22 and flue gas valve 16 subsequently.
By that analogy, when the 4th core blown amine, repeat the program of second core ...
Claims (4)
1. a triethylamine gas takes place and cyclic utilization system, comprises high-pressure pump, aerogenerator of triethylamine, air blowing plate, exhaust collection case, air-introduced machine and flexible exhaust collection capsule; It is characterized in that: flexible exhaust collection capsule is provided with two at least, and a flexible exhaust collection capsule is arranged in the outer rigid housing, and the bottom of outer rigid housing is provided with electro connecting pressure gauge; The bottom of each flexible exhaust collection capsule is connected with the air inlet of high-pressure pump through extraction valve on the one hand, is connected with air-introduced machine through charge valve on the other hand; High-pressure pump, aerogenerator of triethylamine and air blowing plate are connected in turn through pipeline; Air-introduced machine is connected with the exhaust collection case.
2. triethylamine gas according to claim 1 takes place and cyclic utilization system, and it is characterized in that: said outer rigid housing is provided with pneumostome.
3. triethylamine gas according to claim 1 takes place and cyclic utilization system, it is characterized in that: on the connecting line between said charge valve and the air-introduced machine and be connected to the exhaust branch road, the exhaust branch road is provided with flue gas valve and chimney.
4. triethylamine gas according to claim 1 takes place and cyclic utilization system; It is characterized in that: be connected with air accumulator intake valve, air accumulator and air accumulator air outlet valve between said high-pressure pump and the aerogenerator of triethylamine; Between air accumulator air outlet valve and the aerogenerator of triethylamine and be connected to the high-pressure air source arm, the high-pressure air source arm is provided with the source of the gas valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110440296 CN102430723B (en) | 2011-12-26 | 2011-12-26 | Triethylamine gas producing and recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110440296 CN102430723B (en) | 2011-12-26 | 2011-12-26 | Triethylamine gas producing and recycling system |
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| Publication Number | Publication Date |
|---|---|
| CN102430723A true CN102430723A (en) | 2012-05-02 |
| CN102430723B CN102430723B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110440296 Expired - Fee Related CN102430723B (en) | 2011-12-26 | 2011-12-26 | Triethylamine gas producing and recycling system |
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| CN (1) | CN102430723B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959543A (en) * | 2015-07-30 | 2015-10-07 | 苏州明志科技有限公司 | Core making process and core making device of triethylamine cold box |
| CN106224776A (en) * | 2016-08-31 | 2016-12-14 | 合肥艾普拉斯环保科技有限公司 | Gas-circulating system |
| CN106238671A (en) * | 2016-09-04 | 2016-12-21 | 佛山市恒学科技服务有限公司 | A kind of core shooter molding sand molding environment-protecting is catalyzed retracting device |
| CN106424579A (en) * | 2016-10-13 | 2017-02-22 | 天津凯星科技有限公司 | Method and equipment for recycling triethylamine cold core box core manufacturing tail gas through vacuum equipment |
| CN106825426A (en) * | 2017-02-10 | 2017-06-13 | 佛山市恒学科技服务有限公司 | A kind of cold-box core blower molding sand urges amine curing |
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| DE2065657A1 (en) * | 1970-05-23 | 1974-12-05 | Guenther Doll | Aerosol for hardening moulds made by the cold-box process - triethylamine being blown through a row of filters producing very fine mist |
| JPS5410225A (en) * | 1977-06-24 | 1979-01-25 | Sintokogio Ltd | Fabricating of cast by cold box method |
| JPS60132639A (en) * | 1983-06-01 | 1985-07-15 | Naniwa Seisakusho:Kk | Gas generating apparatus for molding cold box casting mold |
| CN1606478A (en) * | 2002-06-17 | 2005-04-13 | 卢伯股份有限公司 | Method and device for hardening foundry cores |
| CN2834719Y (en) * | 2005-08-25 | 2006-11-08 | 烟台胜地汽车零部件制造有限公司 | A tail gas collecting and discharging device of cold core machine |
| CN102189223A (en) * | 2011-03-23 | 2011-09-21 | 苏州明志科技有限公司 | Hybrid gas generator for core-making processes employing organic binder and inorganic binder |
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2011
- 2011-12-26 CN CN 201110440296 patent/CN102430723B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2065657A1 (en) * | 1970-05-23 | 1974-12-05 | Guenther Doll | Aerosol for hardening moulds made by the cold-box process - triethylamine being blown through a row of filters producing very fine mist |
| JPS5410225A (en) * | 1977-06-24 | 1979-01-25 | Sintokogio Ltd | Fabricating of cast by cold box method |
| JPS60132639A (en) * | 1983-06-01 | 1985-07-15 | Naniwa Seisakusho:Kk | Gas generating apparatus for molding cold box casting mold |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959543A (en) * | 2015-07-30 | 2015-10-07 | 苏州明志科技有限公司 | Core making process and core making device of triethylamine cold box |
| CN106224776A (en) * | 2016-08-31 | 2016-12-14 | 合肥艾普拉斯环保科技有限公司 | Gas-circulating system |
| CN106238671A (en) * | 2016-09-04 | 2016-12-21 | 佛山市恒学科技服务有限公司 | A kind of core shooter molding sand molding environment-protecting is catalyzed retracting device |
| CN106424579A (en) * | 2016-10-13 | 2017-02-22 | 天津凯星科技有限公司 | Method and equipment for recycling triethylamine cold core box core manufacturing tail gas through vacuum equipment |
| CN106825426A (en) * | 2017-02-10 | 2017-06-13 | 佛山市恒学科技服务有限公司 | A kind of cold-box core blower molding sand urges amine curing |
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| CN102430723B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20131226 |