CN105521689B - Aluminium alloy casts emission-control equipment adding method - Google Patents
Aluminium alloy casts emission-control equipment adding method Download PDFInfo
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- CN105521689B CN105521689B CN201610071627.5A CN201610071627A CN105521689B CN 105521689 B CN105521689 B CN 105521689B CN 201610071627 A CN201610071627 A CN 201610071627A CN 105521689 B CN105521689 B CN 105521689B
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- pagoda
- air inlet
- water tank
- pipe
- spray water
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- 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
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Aluminium alloy casts emission-control equipment, it is characterized in that：It is welded in the middle and upper part of pagoda-shaped spray water tank (1) and introduces an air inlet hush pipe (2)；It is connected respectively on air inlet hush pipe (2) top and introduces U-shaped spiral liquid curtain spray system (3) and charge pipe (17), charge pipe (17) is linked together by the valve that feeds (18) and loading hopper (19)；The beneficial effects of the invention are as follows：Gas section and residence time are spent with enough；Good air flow method is generated, so that all gas sections excessively can be fully used；With sound-deadening and noise-reducing, strength deodoriging properties；It is big to exhaust-gas treatment ability；It is efficient to harmful constituent absorption cleaning；Absorbing liquid and adsorbent can regenerate reuse, harmful substance can be become utility, will not cause the secondary pollution of environment；It is simple in structure, stable operation；Gas is small by resistance, can improve production efficiency；Job costs are low, easy to repair.Production efficiency can be effectively improved.
Description
Technical field
The present invention relates to aluminium alloys to cast exhaust gas treatment technology, is particularly applied to aluminium alloy smelting, low-pressure casting technology
Field.
Background technology
With the development of casting technique, the widely used self-hardening furan resin sand moulding of new generation of casting, this not only shortens
Production cycle, production efficiency is improved, and also improve the visual quality of casting.But it is being poured into a mould using resin bonded sand mould, core
When, because being toasted by high temperature aluminium alloys liquid, the mixed gas with pungent odor can be given out, not only has titanium dioxide in mixed gas
Outside sulphur, nitrogen dioxide and a small amount of nitric oxide, hydrogen sulfide, also have the larger resin volatile matter of minute quantity viscosity, as formaldehyde,
The harmful substances such as phenol, methanol, stupid compound, this exhaust gas distribute everywhere, to personnel health's safety hazard, also can seriously pollute ring
Border influences the normal production and living of the mankind.
The common feature of waste gas pollution control and treatment equipment is to come out the separated from contaminants in gas or be converted into innocuous substance, to reach
To the purpose of purification gas.The Treatment process such as dedusting, absorption and sorption, catalysis, the condensation of generally use belong to unit operation.It is right
The exhaust gas generated in aluminium alloy casting is without targetedly dedicated treatment facility.
Invention content
In view of the particularity of cast article, under conditions of it can't realize clean manufacturing, it is same that the present invention provides a kind of energy
When integrated treatment these with pungent odor mixed gas aluminium alloys casting emission-control equipments.
The processing of toxic harmful exhaust gas that it is an object of the invention to effectively solve to generate during aluminum alloy casting technique
Problem.When using resin bonded sand mould, core cast, the mixed gas with pungent odor is given out to being toasted by high temperature aluminium alloys liquid
It is absorbed and resolution process, it is ensured that exhaust gas discharge up to standard, to treated, substance recycles, and realizes harmless type cleaning life
Production. art.
The purpose of the present invention is what is solved by following technical solution.
Aluminium alloy casts emission-control equipment adding method, and feature of present invention is：In (the weldering of the middle and upper part of pagoda-shaped spray water tank
Connect) introduce an air inlet hush pipe；It is connected respectively on air inlet hush pipe top and introduces U-shaped spiral liquid curtain spray system and charging
Pipe, charge pipe are linked together by the valve that feeds with loading hopper；Maintenance is separately installed in the lower part of pagoda-shaped spray water tank
Port lid and fluid level indicator, and return pipe is connected in downside, return pipe passes through reinforced polypropylene centrifugal pump and its export pipeline
Pagoda-shaped spray water tank top is introduced, and is linked together with U-shaped spiral liquid curtain spray system, forms circulation tube road；
Pagoda-shaped spray water tank bottom side is connected with drain line, and drain line is controlled by draining valve introduces regeneration treatment savings
Slot；The case that eliminates the unusual smell is connected at the top of pagoda-shaped spray water tank, the drawer equipped with activated carbon is inserted into the case that eliminates the unusual smell, eliminate the unusual smell case
Top and diagonal flow ventilator air inlet connect, connect with the air outlet of diagonal flow ventilator with exhaust duct, exhaust duct goes out
Kou Chu is connect with wild goose type shading rain cap.
What air inlet hush pipe of the present invention was determined for a root long degree by pagoda-shaped spray water tank inner cavityIt is seamless
Steel pipe on air inlet hush pipe, offers equally distributed multiple apertures in 120 ° of positions downward.
Wild goose type shading rain cap of the present invention is " wild goose spreads the wings " shape, by one piece of plate, is rolled into semi arch, from intermediate bending
Into.
A kind of processing method of aluminium alloy casting emission-control equipment described in basis, feature of present invention are to cast exhaust gas
Entered by the air inlet pipe hush pipe being connected in pagoda-shaped spray water tank, two " paths " is divided to be handled, one is to big
It measures downward exhaust gas to chemically react using the soda chemical liquid absorption process that U-shaped spiral liquid curtain spray system sprays, discharge
After the lime white gone out in the soda chemical liquid of saturation and regeneration treatment accumulator tank is regenerated, sediment is that gypsum can make him
With " lye " after clarification is used by loading hopper into the device circulating repetition；The other is a small amount of upward exhaust gas is adopted
It is purified with active carbon adsorption, without departing from GB16297-1996《Discharge standard of air pollutants》Defined limit value
Afterwards, it is discharged into air along wild goose type shading rain cap by diagonal flow ventilator by peculiar smell case；At the purification to exhaust gas
Reason, avoids causing environmental pollution.
The invention has the advantages that 1) spend gas section and residence time with enough；2) good air-flow point is generated
Cloth, so that all gas sections excessively can be fully used；3) there are sound-deadening and noise-reducing, strength deodoriging properties；To exhaust-gas treatment
Ability is big；It is efficient to harmful constituent absorption cleaning；4) absorbing liquid and adsorbent can regenerate reuse, can be nuisance qualitative change
Into utility, the secondary pollution of environment will not be caused；5) it is simple in structure, stable operation；6) gas is small by resistance, can improve
Production efficiency；7) job costs are low, easy to repair.Production efficiency can be effectively improved.
5th, it illustrates
Fig. 1 is the planar structure schematic diagram of aluminium alloy casting emission-control equipment in the present invention；
Fig. 2 is the sectional view of air inlet hush pipe；
Fig. 3 is shading rain cap structure diagram.
6th, specific embodiment
See Fig. 1, Fig. 2, Fig. 3, aluminium alloy casting emission-control equipment, feature of present invention is：In pagoda-shaped spray water tank 1
Middle and upper part welding introduces an air inlet hush pipe 2；It is connected respectively on 2 top of air inlet hush pipe and introduces U-shaped spiral liquid curtain spray system
System 3 and charge pipe 17, charge pipe 17 are linked together by the valve 18 that feeds with loading hopper 19；In pagoda-shaped spray water tank 1
Lower part is separately installed with manhole cover 4 and fluid level indicator 5, and return pipe 6 is connected in downside, and return pipe 6 is poly- by enhancing
Propylene centrifugal pump 9 and its export pipeline 16 introduce 1 top of pagoda-shaped spray water tank, and are connect with U-shaped spiral liquid curtain spray system 3
Together, circulation tube road is formed；Drain line 7 is connected in 1 bottom side of pagoda-shaped spray water tank, drain line 7 is logical
It crosses the control of draining valve 8 and introduces regeneration treatment accumulator tank 10；The case 12 that eliminates the unusual smell is connected at 1 top of pagoda-shaped spray water tank, is removed
The drawer 11 equipped with activated carbon is inserted into peculiar smell case 12, the top for the case 12 that eliminates the unusual smell connects with the air inlet of diagonal flow ventilator 13
It connects, is connect with the air outlet of diagonal flow ventilator 13 with exhaust duct 14,14 exit of exhaust duct is connect with wild goose type shading rain cap 15.
What air inlet hush pipe 2 of the present invention was determined for a root long degree by 1 inner cavity of pagoda-shaped spray water tankNothing
Steel pipe is stitched, on air inlet hush pipe, offers equally distributed multiple apertures in 120 ° of positions downward.
Wild goose type shading rain cap 15 of the present invention is " wild goose spreads the wings " shape, by one piece of plate, is rolled into semi arch, from intermediate bending
Into.
A kind of processing method of aluminium alloy casting emission-control equipment described in basis, feature of present invention are to cast exhaust gas
Entered by the air inlet pipe hush pipe 2 being connected in pagoda-shaped spray water tank 1, two " paths " is divided to be handled, one is pair
A large amount of downward exhaust gas are chemically reacted using the soda chemical liquid absorption process that U-shaped spiral liquid curtain spray system 3 sprays, and are arranged
After the soda chemical liquid of releasing saturation is regenerated with the lime white in regeneration treatment accumulator tank 10, sediment is that gypsum can be made
He uses, and " lye " after clarification enters the device circulating repetition by loading hopper 19 and uses；The other is it gives up to a small amount of upward
Gas is purified using active carbon adsorption, without departing from GB16297-1996《Discharge standard of air pollutants》Defined limit
After value, by peculiar smell case 12 by diagonal flow ventilator 13, it is discharged into air along wild goose type shading rain cap 15；So as to fulfill to exhaust gas
Purified treatment, avoid causing environmental pollution.
Aluminium alloy casting emission-control equipment specific embodiment is that the exhaust pipe of differential pressure casting equipment is connected by flange
Air inlet hush pipe 2 is connected to, connects the power supply of reinforced polypropylene centrifugal pump 9 and diagonal flow ventilator 13, power supply is set by differential pressure cast
Standby Electric Appliance Cabinet controls, closing draining valve 8, opening charging valve 17, and the past inner addition sodium hydroxide tablet 16 of loading hopper 19~
380~420kg of 20kg, 2~4kg of sodium thiosulfate liquid and tap water, when liquid level line reaches 5 centre position of fluid level indicator
When, stop plus tap water, closing charging valve 17 allow aluminium alloy casting emission-control equipment to be in standby mode.When differential pressure is poured
Note equipment cast be near completion discharge aluminium alloy casting exhaust gas when, start the present apparatus, soda chemical liquid by reinforced polypropylene from
Heart pump 9 pumps to U-shaped spiral liquid curtain spray system 3, is covered using the liquid curtain multilayer that multiple spiral nozzles spray, casts exhaust gas
Entered by air inlet hush pipe 2, be discharged into pagoda-shaped spray water tank 1 on liquid from equally distributed multiple apertures downward, make liquid
Body turnup stacks, and increases gas and liquid phase contact area, completes the transmission of substance, chemical reaction is made to carry out fully thorough, Shao Liangyi
The pernicious gas gone out purifies again through activated carbon adsorption, reaches《Discharge standard of air pollutants》GB16297-1996 specified values
Afterwards, it is pumped in air by diagonal flow ventilator 13.
Sodium hydroxide (NaOH) and sodium thiosulfate Na2S2O3As above-mentioned waste gas absorption liquid, (sodium hydroxide (NaOH's) matches
Specific concentration is 4%~28%), as processing absorbing liquid, (quick lime main component is CaO to lime stone.Quick lime reacts life with water
Into calcium hydroxide Ca (OH)2, i.e. white lime).After using a period of time, the liquid of saturation passes through drain line 7, draining valve
8 controls are introduced in regeneration treatment accumulator tank 10, add in calcium hydroxide Ca (OH)2Liquid stirs, and makes its chemical reaction
Thoroughly, after gypsum deposition, Ca (OH) above2It is reused after liquids recovery.
Claims (4)
1. aluminium alloy casts emission-control equipment, it is characterized in that：In the middle and upper part of pagoda-shaped spray water tank (1), welding introduces one
Air inlet hush pipe (2)；It is connected respectively on air inlet hush pipe (2) top and introduces U-shaped spiral liquid curtain spray system (3) and charge pipe
(17), charge pipe (17) is linked together by the valve that feeds (18) and loading hopper (19)；Under pagoda-shaped spray water tank (1)
Portion is separately installed with manhole cover (4) and fluid level indicator (5), and return pipe (6) is connected in downside, and return pipe (6) passes through
Reinforced polypropylene centrifugal pump (9) and its export pipeline (16) introduce pagoda-shaped spray water tank (1) top, and with U-shaped spiral liquid curtain
Spray system (3) links together, and forms circulation tube road；In pagoda-shaped spray water tank (1), bottom side is connected with drain
Pipeline (7), drain line (7) are controlled by draining valve (8) and introduce regeneration treatment accumulator tank (10)；In pagoda-shaped spray water tank
(1) top is connected with the case that eliminates the unusual smell (12), and the drawer (11) equipped with activated carbon, the case that eliminates the unusual smell (12) are inserted into the case that eliminates the unusual smell (12)
Top connect with the air inlet of diagonal flow ventilator (13), with the air outlet of diagonal flow ventilator (13) with exhaust duct (14) even
It connects, exhaust duct (14) exit is connect with wild goose type shading rain cap (15).
2. aluminium alloy according to claim 1 casts emission-control equipment, it is characterized in that, air inlet hush pipe (2) is one
Length is determined by pagoda-shaped spray water tank (1) inner cavitySeamless steel pipe, on air inlet hush pipe, 120 ° downward
Equally distributed multiple apertures are offered in position.
3. aluminium alloy according to claim 1 casts emission-control equipment, it is characterized in that, wild goose type shading rain cap (15) is " big
Wild goose spreads the wings " shape, by one piece of plate, semi arch is rolled into, is formed from intermediate bending.
4. the processing method of aluminium alloy casting emission-control equipment according to claim 1, it is characterized in that, casting exhaust gas leads to
It crosses the air inlet hush pipe (2) being connected in pagoda-shaped spray water tank (1) to enter, two " paths " is divided to be handled, one is pair
A large amount of downward exhaust gas are chemically reacted using the soda chemical liquid absorption process that U-shaped spiral liquid curtain spray system (3) sprays,
It gives off after the soda chemical liquid of saturation regenerated with the lime white in regeneration treatment accumulator tank (10), sediment is gypsum
Can be used for other purposes, " lye " after clarification is used by loading hopper (19) into the device circulating repetition；The other is on a small quantity to
On exhaust gas purified using active carbon adsorption, without departing from GB16297-1996《Discharge standard of air pollutants》Rule
After fixed limit value, by the case that eliminates the unusual smell (12) by diagonal flow ventilator (13), it is discharged into air along wild goose type shading rain cap (15)；
So as to fulfill the purified treatment to exhaust gas, avoid causing environmental pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071627.5A CN105521689B (en) | 2016-02-02 | 2016-02-02 | Aluminium alloy casts emission-control equipment adding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071627.5A CN105521689B (en) | 2016-02-02 | 2016-02-02 | Aluminium alloy casts emission-control equipment adding method |
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| Publication Number | Publication Date |
|---|---|
| CN105521689A CN105521689A (en) | 2016-04-27 |
| CN105521689B true CN105521689B (en) | 2018-06-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203507736U (en) * | 2013-10-14 | 2014-04-02 | 厦门中厦环科技有限公司 | Spray adsorption tower |
| CN105148656A (en) * | 2015-07-21 | 2015-12-16 | 天津霍普环保科技有限公司 | Comprehensive disposal system for malodorous organic exhaust gas |
| CN105169930A (en) * | 2015-09-23 | 2015-12-23 | 姚昱贞 | Photo-oxidative catalysis water suction type efficient waste gas processing device |
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2016
- 2016-02-02 CN CN201610071627.5A patent/CN105521689B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203507736U (en) * | 2013-10-14 | 2014-04-02 | 厦门中厦环科技有限公司 | Spray adsorption tower |
| CN105148656A (en) * | 2015-07-21 | 2015-12-16 | 天津霍普环保科技有限公司 | Comprehensive disposal system for malodorous organic exhaust gas |
| CN105169930A (en) * | 2015-09-23 | 2015-12-23 | 姚昱贞 | Photo-oxidative catalysis water suction type efficient waste gas processing device |
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| CN105521689A (en) | 2016-04-27 |
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Address after: 650051 Yunnan city in Kunming Province eight kilometers KMEC Industrial Zone 502 a mail box Applicant after: YUNNAN KSEC MACHINERY MANUFACTURING CO.,LTD. Address before: 650051 Yunnan city in Kunming Province eight kilometers KMEC Industrial Zone 502 a mail box Applicant before: 1ST MACHINERY CO.,LTD. OF KSEC |
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Effective date of registration: 20221130 Address after: 650051 No. 3 East Renmin Road, Yunnan, Kunming Patentee after: KUNMING SHIPBUILDING EQUIPMENT Co.,Ltd. Address before: 650051 Yunnan Kunming eight km Kun Shipping Industrial Zone 502 mailbox one sub box Patentee before: YUNNAN KSEC MACHINERY MANUFACTURING CO.,LTD. |