CN204952535U - Explosion -proof wet process dust collector of aluminium magnesium dust - Google Patents
Explosion -proof wet process dust collector of aluminium magnesium dust Download PDFInfo
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- CN204952535U CN204952535U CN201520658282.4U CN201520658282U CN204952535U CN 204952535 U CN204952535 U CN 204952535U CN 201520658282 U CN201520658282 U CN 201520658282U CN 204952535 U CN204952535 U CN 204952535U
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Abstract
The utility model discloses an explosion -proof wet process dust collector of aluminium magnesium dust, including dust absorption equipment, tuber pipe, whirl water mist spraying tower, defroster, draught fan, chimney, the bottom that whirl water mist spraying tower is connected to the tuber pipe is passed through at the top of dust absorption equipment, and the top of whirl water mist spraying tower connects gradually the defroster through exhaust pipe, draught fan and chimney, the tuber pipe be equipped with butterfly blast gate, spark tester, wind speed detector in proper order from go to after on airflow direction, sweep mouth, explosion -proof valve, dust concentration detector, safe concentration governing valve, deashing mouth, explosion -proof valve and the valve of preventing fires, the utility model discloses a tuber pipe is controlled well behind aluminium magnesium dust concentration and the explosion -proof fire prevention star, adsorbs and gets rid of the dust through whirl water mist spraying tower, and the dust collection efficiency is high, the simple structure of device itself, and the factor of safety height, the practical function is good.
Description
Technical field
The utility model relates to dedusting technology and the environmental protection technical field of dangerous dust, particularly relates to a kind of explosion-proof Wet-way dust-collector for magnalium dust.
Background technology
Along with the development of modern industry, especially auto industry lightweight is produced, and the important means that use becomes automobile loss of weight, energy-saving and emission-reduction are produced of aluminium matter part, its weight loss effect can reach 30% ~ 40%, and secondary draws loss of weight then can bring up to 50%.Within 2006, Europe, the United States, the car of day on average reach 127kg/ by aluminum amount, European aluminum association (EAA) prediction, before 2016, Europe car aluminum amount will increase to 300kg/, and often use 1kg aluminium to substitute steel body, automobile Life cycle tail gas emission 20kg can be made.Therefore, body lightening will inevitably impel large-scale popularization and the application of aluminium alloy.
Aluminium alloy is a kind of more active alloy, and under certain conditions, aluminium, magnesium dust very easily dust explosion occur.Wherein, aluminium powder belongs to the flammable powder of Class B, and the easy moisture absorption, its aerial LEL is 37 ~ 50g/m
3, Minimum ignition temperature 645 DEG C, minimum ignition energy 15mJ, maximum explosion pressure 0.415MPa, minimum oxygen content 9% of exploding in nitrogen.The less explosion hazard of granularity is larger; Magnesium powder is also more active than aluminium powder, and its LEL is 20g/m
3, Minimum ignition temperature 520 DEG C; The LEL of almag is 50g/m
3, Minimum ignition temperature 535 DEG C.Therefore, carrying out aluminium, magnesium part adds man-hour, and the explosion-proof improvement of dust just becomes one impassable bottom line.
Dust arrester common at present can be divided into two large classes: 1) dry collector: comprise gravity settling chamber, inertial dust separator, electric cleaner, sack cleaner, cyclone dust collectors.2) wet scrubber: comprise and Venturi scrubber, spray column, packed tower, sieve-plate tower and rotating stream tray scrubber.Wherein, it is low to there is efficiency of dust collection in gravitational settling, inertial dust collection, cyclone dust removal etc., is difficult to the discharging standards meeting aluminium, magnesium dust; Bag-type dust and electric precipitation very easily cause aluminium, magnesium dust to explode; Less, the easy blocking of liquid holdup that Venturi scrubber, spray column, packed tower and sieve-plate tower exist and the deficiency such as operating flexibility is general.
For the characteristic of various conventional dust arrester and auto industry part processing capacity large, the realistic problems such as aluminium, magnesium dust are inflammable and explosive, in the urgent need to a kind of newly or the technical scheme improved solve above-mentioned technical problem.
Summary of the invention
For above-mentioned Problems existing, it is simple that the utility model object is to provide a kind of structure, utilize fireproof anti-explosion device to process aluminium, magnesium dust, in conjunction with the compound action of specific spray liquid and shower nozzle, finally realize device magnalium dust being carried out to wet dedusting.
In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of explosion-proof Wet-way dust-collector of magnalium dust, described Wet-way dust-collector comprises dust collection equipment, airduct, swirling mist spray column, demister, air-introduced machine, chimney, the top of described dust collection equipment connects the bottom of swirling mist spray column by airduct, the top of described swirling mist spray column connects demister successively by gas exhaust piping, air-introduced machine and chimney, described airduct is provided with safety device, safety device comprises checkout equipment and antiknock device, checkout equipment comprises spark tester, wind speed measurement device and dust concentration detector, antiknock device comprises butterfly air-valve, explosion-proof valve, fire resisting damper, safe concentration control valve, blow valve port and cleaning door, described airduct is provided with butterfly air-valve, spark tester, wind speed measurement device, blow valve port, explosion-proof valve, dust concentration detector, safe concentration control valve, cleaning door, explosion-proof valve and fire resisting damper successively in the direction of the air flow after going to.
Improve as one of the present utility model, in described swirling mist spray column, be provided with air outlet, water fender, shower nozzle, rotating stream tray, air inlet and liquid collection opening successively from top to bottom; Described swirling mist spray column is connected with to drainage system, and described comprising to drainage system stores liquid case, water circulating pump, sewage backflow pump, flowmeter and Pressure gauge.
Improve as one of the present utility model, the described liquid case that stores is provided with overflow passage, described liquid collection opening is connected to by return line and sewage backflow pump and stores on liquid case, and described storing on liquid case is connected on shower nozzle by hydraulic pipeline, water circulating pump, flowmeter and Pressure gauge.
Improve as one of the present utility model, described shower nozzle comprises conventional injection head and atomizer.The spray liquid that described shower nozzle uses is acidic aqueous solution, and described acid washing water solution is the dilute acid soln of one or more in hydrochloric acid, acetic acid, sulfuric acid or nitric acid, and the concentration of acid washing water solution is 0.01% ~ 20%.The water of conventional injection head ejection forms water curtain, and special nozzle ejection water smoke, forms atomization environment, increase with time of contact of dust with contact effect, improve efficiency of dust collection.Acidic aqueous solution, by chemical action and its physico-chemical property, improves magnalium dust hydrophily, improves efficiency of dust collection.
Improve as one of the present utility model, be blown into gas in described blow valve port and safe concentration control valve, described gas is nitrogen or air.The effect of blow valve port prevents the sedimentation in the duct of magnalium dust, and the effect of safe concentration control valve is the concentration reducing magnalium dust in pipeline, well below the LEL of magnalium dust, prevents blast.
Improve as one of the present utility model, described dust collection equipment is dust shield or dust suction laboratory hood, and the air inlet of described dust collection equipment is provided with Mars trapping meal dirt preliminary purification device.The effect of Mars trapping meal dirt preliminary purification device is the Large stone magnalium dust collecting the free settling that polishing produces.
Improve as one of the present utility model, each rotating stream tray place on described swirling mist spray column is provided with an access hole.The tower body sidewall of described swirling mist spray column adopts A3 plate, and the wall thickness >=5mm of tower body and cone bucket, described gas outlet adopts outlet air flange interface, the t12 steel plate that flange is 100mm by width is made, and flange face exceeds more than tower body 80mm.
Improve as one of the present utility model, described explosion-proof Wet-way dust-collector is provided with control panel, and described control panel adopts PLC control system.Whole device systems runs and adopts PLC to carry out Automated condtrol.
Improve as one of the present utility model, described water fender is arranged on immediately below air outlet, the inner surface of the tower body panel of described swirling mist spray column is coated with anticorrosive coat, described anticorrosive coat is by the senior anti-corrosion primer of one deck, through phosphorating treatment, obtain after finally spraying epoxy, polyester powder coating.
The utility model has the advantage of: explosion-proof Wet-way dust-collector of the present utility model is the explosion-proof dust arrester for explosive magnalium dust, dusty gas is controlled well after al-mg powder dust concentration and anti-explosion fire star by airduct, column plate spiral is passed through by below spray column, Acidic Liquid stream is assigned to each blade from blind plate and forms thin layer, sprayed into drop by air-flow simultaneously, enhance the absorption to magnalium dust and capturing ability.Drop is centrifuged power and gets rid of to tower wall while running with air-flow, forms the pendular ring rotated along wall, and gravitate and flowing down along tower wall.When liquid is sprayed in gas on spiral board, stick grit wherein, then get rid of to tower wall, dirty with grit, not by the grit sticked in gas, also have an opportunity to be got rid of and adsorbed to tower wall, continue upwards soaring dusty gas and the mist droplet that got off by atomizer contacts with each other, thus reach the effect of good adsorbing and trapping dust.
Accompanying drawing explanation
Fig. 1 is the structural representation of magnalium dust explosion protection Wet-way dust-collector of the present utility model;
Wherein, 1-dust collection equipment; 2-Mars trapping meal dirt preliminary purification device; 3-butterfly air-valve; 4-spark tester; 5-airduct; 6-wind speed measurement device; 7-blow valve port; 8-explosion-proof valve; 9-dust concentration detector; 10-safe concentration control valve; 11-cleaning door; 12-fire resisting damper; 13-air inlet; 14-stores liquid case; 15-overflow pipe; 16-sewage backflow pump; 17-water circulating pump; 18-flowmeter; 19-Pressure gauge; 20-water fender; 21-air outlet; 22-atomizer; 23-manhole; 24-rotating stream tray; 25-liquid collection opening; 26-demister; 27-air-introduced machine; 28-chimney.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and with detailed description of the invention, the utility model to be described in further detail.
embodiment 1:the explosion-proof Wet-way dust-collector of a kind of magnalium dust as shown in Figure 1, described Wet-way dust-collector comprises dust collection equipment 1, airduct 5, swirling mist spray column, demister 26, air-introduced machine 27, chimney 28, the top of described dust collection equipment 1 connects the bottom of swirling mist spray column by airduct 5, the top of described swirling mist spray column connects demister 26 successively by gas exhaust piping, air-introduced machine 27 and chimney 28, described airduct 5 is provided with safety device, safety device comprises checkout equipment and antiknock device, checkout equipment comprises spark tester 4, wind speed measurement device 6 and dust concentration detector 9, antiknock device comprises butterfly air-valve 3, explosion-proof valve 8, fire resisting damper 12, safe concentration control valve 10, blow valve port 7 and cleaning door 11, described airduct is provided with butterfly air-valve 3, spark tester 4, wind speed measurement device 6, blow valve port 7, explosion-proof valve 8, dust concentration detector 9, safe concentration control valve 10, cleaning door 11, explosion-proof valve 8 and fire resisting damper 12 successively in the direction of the air flow after going to.
embodiment 2:as shown in Figure 1, air outlet 21, water fender 20, shower nozzle 22, rotating stream tray 234, air inlet 13 and liquid collection opening 25 is provided with from top to bottom successively in swirling mist spray column; Described swirling mist spray column is connected with to drainage system, and described comprising to drainage system stores liquid case 14, water circulating pump 17, sewage backflow pump 16, flowmeter 18 and Pressure gauge 19.Store liquid case 14 and be provided with overflow passage 15, described liquid collection opening 25 is connected to by return line and sewage backflow pump 16 and stores on liquid case 14, and described storing on liquid case 14 is connected on shower nozzle 22 by hydraulic pipeline, water circulating pump 17, flowmeter 18 and Pressure gauge 19.
The spray liquid stored in liquid case 14 is delivered to atomizer 22 by water circulating pump 17, the control of flow and pressure of course of conveying is realized by flowmeter 18 and Pressure gauge 19, spray liquid is from top to bottom after the abundant Contact-sorption dust of dirt gas that rotating stream tray 24 and air inlet 13 are introduced, sewage is collected through liquid collection opening 25, by sewage backflow pump 16 carry after filter screen return store liquid case 14, dirt gas after treatment upwards removes water droplet by water fender 20, be transported to demister 26 by air outlet 21, then discharge from chimney 28 through air-introduced machine 27.
Each rotating stream tray 24 place on swirling mist spray column is provided with an access hole 23.The tower body sidewall of described swirling mist spray column adopts A3 plate, and the wall thickness >=5mm of tower body and cone bucket, described gas outlet adopts outlet air flange interface, the t12 steel plate that flange is 100mm by width is made, and flange face exceeds more than tower body 80mm.
embodiment 3:as shown in Figure 1, shower nozzle 22 comprises conventional injection head and atomizer.The spray liquid that described shower nozzle 22 uses is acidic aqueous solution, and described acid washing water solution is the dilute acid soln of one or more in hydrochloric acid, acetic acid, sulfuric acid or nitric acid, and the concentration of acid washing water solution is 0.01% ~ 20%.
embodiment 4:as shown in Figure 1, explosion-proof Wet-way dust-collector is provided with control panel, and described control panel adopts PLC control system.
embodiment 5:as shown in Figure 1, be blown into gas in blow valve port 7 and safe concentration control valve 10, described gas is nitrogen or air.Described dust collection equipment 1 is dust shield or dust suction laboratory hood, and the air inlet of described dust collection equipment 1 is provided with Mars trapping meal dirt preliminary purification device 2.
embodiment 6:as shown in Figure 1, described water fender 20 is arranged on immediately below air outlet 21, and the inner surface of the tower body panel of described swirling mist spray column is coated with the senior anti-corrosion primer of one deck, then through phosphorating treatment, finally sprays epoxy, polyester powder coating.
embodiment 7:as shown in Figure 1, the workflow of erection unit on airduct 5 of the present invention:
1) after entering pipeline containing the gas of magnalium dust, by switch butterfly air-valve 3 to control dusty gas circulation in the duct and blocking-up.If when dusty gas is through spark tester 4 containing spark, then detector is reported to the police.
2) flow velocity of wind speed measurement device 6 pairs of dusty gases in pipeline detects, and for ensureing the dust flow velocity entering air main, if wind speed is below or above setting value, reports to the police.
3) blow valve port 7 can be blown into air or nitrogen and prevents containing the sedimentation in the duct of aluminium dirt gas in air main 5.
4) explosion-proof valve 8 is when magnalium dust is blasted, and can keep the intact of the main body of equipment by venting of dust explosion.
5) dust concentration detector 9 is to the Concentration Testing of ducted magnalium dust, when concentration is then reported to the police higher than setting value, then fills into air or nitrogen by safe concentration control valve 10 thus reduces the concentration of magnalium dust in pipeline, to reach safe concentration.
6) cleaned out by a small amount of magnalium dust deposited in pipeline by cleaning door 11, arranging explosion-proof valve 8 in its vicinity avoids potential safety hazard simultaneously.
7) fire resisting damper 12 enters the blow-out in the magnalium dust of swirling mist spray column for ensureing, guarantees follow-up dust arrester safety.
It should be noted that, above-mentioned is only preferred embodiment of the present utility model, is not used for limiting protection domain of the present utility model, and equivalents done on the basis of above-described embodiment all belongs to protection domain of the present utility model.
Claims (10)
1. the explosion-proof Wet-way dust-collector of a magnalium dust, it is characterized in that, described Wet-way dust-collector comprises dust collection equipment, airduct, swirling mist spray column, demister, air-introduced machine, chimney, the top of described dust collection equipment connects the bottom of swirling mist spray column by airduct, the top of described swirling mist spray column connects demister successively by gas exhaust piping, air-introduced machine and chimney, described airduct is provided with safety device, safety device comprises checkout equipment and antiknock device, checkout equipment comprises spark tester, wind speed measurement device and dust concentration detector, antiknock device comprises butterfly air-valve, explosion-proof valve, fire resisting damper, safe concentration control valve, blow valve port and cleaning door, described airduct is provided with butterfly air-valve, spark tester, wind speed measurement device, blow valve port, explosion-proof valve, dust concentration detector, safe concentration control valve, cleaning door, explosion-proof valve and fire resisting damper successively in the direction of the air flow after going to.
2. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 1, is characterized in that, is provided with air outlet, water fender, shower nozzle, rotating stream tray, air inlet and liquid collection opening successively from top to bottom in described swirling mist spray column; Described swirling mist spray column is connected with to drainage system, and described comprising to drainage system stores liquid case, water circulating pump, sewage backflow pump, flowmeter and Pressure gauge.
3. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 2, it is characterized in that, the described liquid case that stores is provided with overflow passage, described liquid collection opening is connected to by return line and sewage backflow pump and stores on liquid case, and described storing on liquid case is connected on shower nozzle by hydraulic pipeline, water circulating pump, flowmeter and Pressure gauge.
4. the explosion-proof Wet-way dust-collector of the magnalium dust according to Claims 2 or 3, is characterized in that, described shower nozzle comprises conventional injection head and atomizer.
5. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 4, it is characterized in that, the spray liquid that described shower nozzle uses is acidic aqueous solution, described acid washing water solution is the dilute acid soln of one or more in hydrochloric acid, acetic acid, sulfuric acid or nitric acid, and the concentration of acid washing water solution is 0.01% ~ 20%.
6. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 1, is characterized in that, is blown into gas in described blow valve port and safe concentration control valve, and described gas is the one in nitrogen or air.
7. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 1, is characterized in that, described dust collection equipment is dust shield or dust suction laboratory hood, and the air inlet of described dust collection equipment is provided with Mars trapping meal dirt preliminary purification device.
8. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 2, is characterized in that, each rotating stream tray place on described swirling mist spray column is provided with an access hole.
9. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 1, is characterized in that, described explosion-proof Wet-way dust-collector is provided with control panel, and described control panel adopts PLC control system.
10. the explosion-proof Wet-way dust-collector of magnalium dust according to claim 2, is characterized in that, described water fender is arranged on immediately below air outlet, and the inner surface of the tower body panel of described swirling mist spray column is coated with anticorrosive coat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520658282.4U CN204952535U (en) | 2015-08-28 | 2015-08-28 | Explosion -proof wet process dust collector of aluminium magnesium dust |
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| CN201520658282.4U CN204952535U (en) | 2015-08-28 | 2015-08-28 | Explosion -proof wet process dust collector of aluminium magnesium dust |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833640A (en) * | 2016-04-12 | 2016-08-10 | 徐州工程学院 | Cage washing dust collector used in building and working method thereof |
| CN105977186A (en) * | 2016-05-10 | 2016-09-28 | 深圳市华星光电技术有限公司 | Wet etching device and explosion-proof method thereof |
| CN106841300A (en) * | 2017-03-24 | 2017-06-13 | 上海化工研究院有限公司 | A kind of Combined industry dust explosion analog demenstration system |
| CN106861319A (en) * | 2017-04-21 | 2017-06-20 | 苏州金澄精密铸造有限公司 | A kind of explosion-proof dedusting job shop |
| CN107421101A (en) * | 2017-07-31 | 2017-12-01 | 成都恒力达科技有限公司 | A kind of efficiency air cleaning device |
| CN108525441A (en) * | 2018-06-25 | 2018-09-14 | 南通灵敏环保设备有限公司 | A kind of novel mist dust remover |
| CN108714856A (en) * | 2018-04-08 | 2018-10-30 | 洛阳双瑞金属复合材料有限公司 | A kind of inflammable and explosive dust absorbing dust pelletizing system |
| CN110026035A (en) * | 2019-04-30 | 2019-07-19 | 江苏同庆安全科技有限公司 | A kind of wet process polishing dust remover and its treatment process with explosion prevention function |
| CN110075705A (en) * | 2019-04-22 | 2019-08-02 | 广州颖创环保科技有限公司 | Protected against explosion dust pelletizing system |
| CN110237631A (en) * | 2019-05-28 | 2019-09-17 | 苏州品立环保系统有限公司 | Wet dust filter |
| CN111494867A (en) * | 2020-04-09 | 2020-08-07 | 上海航天精密机械研究所 | Safe treatment method of magnesium powder scraps |
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2015
- 2015-08-28 CN CN201520658282.4U patent/CN204952535U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833640A (en) * | 2016-04-12 | 2016-08-10 | 徐州工程学院 | Cage washing dust collector used in building and working method thereof |
| CN105977186A (en) * | 2016-05-10 | 2016-09-28 | 深圳市华星光电技术有限公司 | Wet etching device and explosion-proof method thereof |
| CN106841300A (en) * | 2017-03-24 | 2017-06-13 | 上海化工研究院有限公司 | A kind of Combined industry dust explosion analog demenstration system |
| CN106861319A (en) * | 2017-04-21 | 2017-06-20 | 苏州金澄精密铸造有限公司 | A kind of explosion-proof dedusting job shop |
| CN107421101A (en) * | 2017-07-31 | 2017-12-01 | 成都恒力达科技有限公司 | A kind of efficiency air cleaning device |
| CN108714856A (en) * | 2018-04-08 | 2018-10-30 | 洛阳双瑞金属复合材料有限公司 | A kind of inflammable and explosive dust absorbing dust pelletizing system |
| CN108525441A (en) * | 2018-06-25 | 2018-09-14 | 南通灵敏环保设备有限公司 | A kind of novel mist dust remover |
| CN110075705A (en) * | 2019-04-22 | 2019-08-02 | 广州颖创环保科技有限公司 | Protected against explosion dust pelletizing system |
| CN110026035A (en) * | 2019-04-30 | 2019-07-19 | 江苏同庆安全科技有限公司 | A kind of wet process polishing dust remover and its treatment process with explosion prevention function |
| CN110237631A (en) * | 2019-05-28 | 2019-09-17 | 苏州品立环保系统有限公司 | Wet dust filter |
| CN111494867A (en) * | 2020-04-09 | 2020-08-07 | 上海航天精密机械研究所 | Safe treatment method of magnesium powder scraps |
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