CN104492209A - Petroleum ether exhaust-gas dedusting and recovery device - Google Patents
Petroleum ether exhaust-gas dedusting and recovery device Download PDFInfo
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- CN104492209A CN104492209A CN201410648258.2A CN201410648258A CN104492209A CN 104492209 A CN104492209 A CN 104492209A CN 201410648258 A CN201410648258 A CN 201410648258A CN 104492209 A CN104492209 A CN 104492209A
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- waste gas
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Abstract
The invention relates to a petroleum ether exhaust-gas dedusting and recovery device, which comprises a exhaust gas washing/dedusting zone, an alkali washing zone, a capture zone, a demister, an active carbon adsorption layer and an air discharge fan at bottom of the petroleum ether exhaust-gas dedusting and recovery device upwardly. An exhaust gas washing/dedusting assembly is arranged in the exhaust gas washing/dedusting zone, which comprises a tap water spray apparatus, a dust waste water collection taper groove, an air inlet pipe and a gas distribution pipe; an exhaust gas alkali washing assembly is arranged in the alkali washing zone, which comprises an alkaline wash spray apparatus and an alkaline wash storage groove; an exhaust gas capture assembly is arranged in the capture zone, which comprises a capture liquid spray apparatus, a mixed liquor storage groove and a capture liquid circulating pump capable of pumping the capture liquid in the capture liquid spray apparatus; a conical tank which is characterized in that an intermediate part is in a cylindrical form, and two ends are conical tanks is arranged at intermediate part of the dedusting and recovery device, the tank is vertically placed; the tap water spray apparatus, the alkaline wash spray apparatus and the capture liquid spray apparatus are spiral spray apparatus; and the demister is a baffle plate demister or a swirling flow plate demister.
Description
Technical field
The present invention relates to technical field of atmospheric pollution control, especially a kind of dedusting of benzinum waste gas and retracting device.
Background technology
In recent years along with the fast development of economy and the quickening of process of industrialization, discharge amount of exhaust gas continues to increase, and the gray haze contained in air causes serious haze weather; The discharge of being rich in the industrial waste gas of benzinum not only causes air quality constantly to decline, very large harm is caused to the living environment of people, and causing the waste of resource, the recycling therefore strengthening resource in the improvement of exhaust emission and waste gas has become the study hotspot of current efforts at environmental protection.
The method that current benzinum air pollution control adopts is charcoal absorption, condensation method, infiltration embrane method, catalytic combustion, biological oxidation etc. mostly, and process device structure complexity, complex operation, processing cost are higher.
Summary of the invention
The technical problem to be solved in the present invention is: overcome prior art device structure complexity, complex operation, problem that processing cost is higher, a kind of dedusting and retracting device of benzinum waste gas are provided, effectively can process the various organic exhaust gas being rich in dust, benzinum, and can the benzinum in waste gas be recycled.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dedusting of benzinum waste gas and retracting device, is upwards followed successively by waste gas cleaning dust district, alkali cleaning district, capture area, demister, activated carbon adsorption layer and exhaust fan from bottom of device.
Described waste gas cleaning dust district is positioned at the foot of whole device; Waste gas cleaning dust assembly is provided with in described waste gas cleaning dust district, described waste gas cleaning dust assembly comprises the running water spray equipment being positioned at waste gas cleaning dust assembly top, the dust waste water being positioned at waste gas cleaning dust assembly bottom catchments cone tank, the dust waste water cone tank that catchments is connected waste water oil partiting precipitation pool by dust discharge of wastewater valve with pipeline, enters municipal wastewater pipe network after wastewater treatment is up to standard; Middle and lower part, waste gas cleaning dust district is provided with air inlet pipe and gas distribution pipe; Running water spray equipment connects running water water inlet pipe.
Described alkali cleaning district is provided with waste gas alkali cleaning assembly, and described waste gas alkali cleaning assembly comprises the alkali wash water spray equipment being arranged in waste gas alkali cleaning assembly top, the alkali wash water being positioned at waste gas alkali cleaning assembly bottom stores groove and the alkali wash water that alkali wash water stored groove pumps into the alkali wash water circulating pump of alkali wash water spray equipment.
Described capture area is provided with waste gas capture component, and described waste gas capture component comprises the seizure liquid spray equipment being positioned at capture area internal upper part, the mixed liquor being positioned at waste gas capture component bottom stores groove and enter to catch the seizure liquid circulating pump of liquid spray equipment by catching liquid pump.
Described top, capture area is provided with demister, demister is collected by the large drop in gas, and make it to return, and reduces the moisture in gas, its operation principle is that gas enters demister, through a series of bend, discharge from top, and water droplet is due to the effect of its quality and kinetic energy, through racetrack portion, straight line falls, and collides the surface of demister, and is rebounding under Action of Gravity Field.
Described demister top is provided with activated carbon adsorption layer, in described activated carbon adsorption layer, active carbon is set, the advantages such as active carbon requires to have hole prosperity, specific area is large, adsorption rate is fast, friction resistant, resistance to flushing, as the operation through the long period, discovery active carbon becomes sticky, and just need change active carbon in time when gas prompt drop is low.
Concrete, be cylindrical, upper and lower two ends in the middle of described dedusting and retracting device be conical tank body, described tank body offer observation port and examine and replace mouth, tank body volume size can according to pending gas flow number and determine, adopt vertical vertical placement.
Clean gas for ease of processing is discharged, and the conical tank body place of described dedusting and retracting device topmost is provided with exhaust fan.
Further and cylindrical tank container matches, the mixed liquor that described alkali wash water stores groove and capture area stores the cross section of groove for circular, alkali wash water stores groove and mixed liquor and stores above groove and be equipped with spray liquid aggregation apparatus, and the lower end diameter of described spray liquid aggregation apparatus is less than alkali wash water and stores the diameter that groove and mixed liquor store groove topmost.Spray liquid aggregation apparatus can make spray liquid assemble to be back to alkali wash water to store groove and mixed liquor stores groove.
Further, described waste gas alkali cleaning assembly is also furnished with alkali wash water adding set and tapping equipment, and described alkali wash water adding set comprises alkali cleaning flow container and agitating device, and alkali wash water adding set is communicated with alkali wash water circulating pump by pipeline with valve.
Described waste gas capture component is also furnished with seizure liquid adding set, catches liquid adding set and is communicated with seizure liquid circulating pump by pipeline with valve.
Further, waste gas capture component also connects mixed liquor piece-rate system, and realize benzinum in mixed liquor piece-rate system and catch being separated of liquid, benzinum is recycled, and catches liquid and enters seizure liquid spray equipment by pipeline and circulating pump, recycle.
Further, described running water spray equipment, alkali wash water spray equipment and seizure liquid spray equipment are helical form spray equipment; The liquid ejected presents vaporific, and mixing together between water smoke, do not stay dead angle, be conducive to the contact area expanding waste gas and solution, improve absorptivity and assimilation effect.
The alkali wash water that described waste gas alkali cleaning assembly adopts is sodium hydroxide solution; Described seizure liquid adopts ethylene glycol solution or butyl glycol ether solution or dimethyl sulfoxide solution.
The matched proportion density of described alkali wash water, seizure liquid is determined according to the exhausted air quantity of process and exhaust gas concentration experiment.
Further preferred equipment, demister is deflection plate demister or overflowing board demister.
The invention has the beneficial effects as follows, first waste gas enter in waste gas cleaning dust district, and running water, from the ejection of uniform running water spray equipment, forms countless fine mist, and after waste gas fully mixes and contacts, the materials such as the dust in waste gas are absorbed in running water; Waste gas continues to rise and contacts with the alkali wash water that alkali wash water spray equipment sprays, the polluter in gas and NaOH generation chemical reaction, and reaction product flows into bottom alkali wash water with alkali wash water and stores in groove; Gas continues rising and contacts with the seizure liquid that seizure liquid spray equipment sprays, benzinum in gas flows into bottom mixed liquor with seizure liquid and stores in groove, and be pumped to mixed liquor piece-rate system, realize benzinum in mixed liquor piece-rate system and catch being separated of liquid, benzinum is recycled, catch liquid and enter seizure liquid spray equipment by pipeline and circulating pump, recycle; Then gas enter demister, and the drop in gas is here blocked; Then gas enters activated carbon adsorption layer, and the material be mingled with in gas and drop are here blocked and absorb, and so far waste gas is processed into clean gas, realizes qualified discharge; Dedusting of the present invention and retracting device structure simply, are easy to manufacture, effectively can process the various organic exhaust gas being rich in dust, benzinum, and can recycle the benzinum in waste gas.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of embodiments of the invention;
In figure: 1. waste gas cleaning dust district, 1-1. running water spray equipment, 1-2. dust waste water catchments cone tank, 1-3. dust discharge of wastewater valve, 1-4. air inlet pipe, 1-5. gas distribution pipe, 1-6. running water water inlet pipe, 2. alkali cleaning district, 2-1. alkali wash water spray equipment, 2-2. alkali wash water stores groove, 2-3. alkali wash water circulating pump, 2-4. alkali wash water adding set, 3. capture area, 3-1. catches liquid spray equipment, 3-2. mixed liquor stores groove, 3-3. catches liquid circulating pump, 3-4. catches liquid adding set, 3-5. mixed liquor piece-rate system, 4. demister, 5. activated carbon adsorption layer, 6. exhaust fan, 7. spray liquid aggregation apparatus
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment
The dedusting of of the present invention a kind of benzinum waste gas as shown in Figure 1 and retracting device, be upwards followed successively by waste gas cleaning dust district 1, alkali cleaning district 2, capture area 3, demister 4, activated carbon adsorption layer 5 and exhaust fan 6 from bottom of device.
Described waste gas cleaning dust district 1 is positioned at the foot of whole device; Waste gas cleaning dust assembly is provided with in described waste gas cleaning dust district, described waste gas cleaning dust assembly comprises the running water spray equipment 1-1 being positioned at waste gas cleaning dust assembly top, the dust waste water being positioned at waste gas cleaning dust assembly bottom catchments cone tank 1-2, the dust waste water cone tank 1-2 that catchments is connected waste water oil partiting precipitation pool by dust discharge of wastewater valve 1-3 with pipeline, enters municipal wastewater pipe network after wastewater treatment is up to standard; Middle and lower part, waste gas cleaning dust district 1 is provided with air inlet pipe 1-4 and gas distribution pipe 1-5; Running water spray equipment 1-1 connects running water water inlet pipe 1-6.
Described alkali cleaning district 2 is provided with waste gas alkali cleaning assembly, and described waste gas alkali cleaning assembly comprises the alkali wash water spray equipment 2-1 being arranged in waste gas alkali cleaning assembly top, the alkali wash water being positioned at waste gas alkali cleaning assembly bottom stores groove 2-2 and the alkali wash water that alkali wash water stored groove pumps into the alkali wash water circulating pump 2-3 of alkali wash water spray equipment 2-1.
Described capture area 3 is provided with waste gas capture component, and described waste gas capture component comprises the seizure liquid spray equipment 3-1 being positioned at capture area internal upper part, the mixed liquor being positioned at waste gas capture component bottom stores groove 3-2 and enter to catch the seizure liquid circulating pump 3-3 of liquid spray equipment by catching liquid pump.
Described top, capture area is provided with demister 4, demister 4 is collected by the large drop in gas, and make it to return, and reduces the moisture in gas, its operation principle is that gas enters demister 4, through a series of bend, discharge from top, and water droplet is due to the effect of its quality and kinetic energy, through racetrack portion, straight line falls, and collides the surface of demister 4, and is rebounding under Action of Gravity Field.
Described demister 4 top is provided with activated carbon adsorption layer 5, in described activated carbon adsorption layer 5, active carbon is set, the advantages such as active carbon requires to have hole prosperity, specific area is large, adsorption rate is fast, friction resistant, resistance to flushing, as the operation through the long period, discovery active carbon becomes sticky, and just need change active carbon in time when gas prompt drop is low.
Concrete, be cylindrical, upper and lower two ends in the middle of described dedusting and retracting device be conical tank body, described tank body offer observation port and examine and replace mouth, tank body volume size can according to pending gas flow number and determine, adopt vertical vertical placement.
Clean gas for ease of processing is discharged, and the conical tank body place of described dedusting and retracting device topmost is provided with exhaust fan 6.
Further and cylindrical tank container matches, the mixed liquor that described alkali wash water stores groove 2-2 and capture area stores the cross section of groove 3-2 for circular, alkali wash water stores groove 2-2 and mixed liquor and stores above groove 3-2 and be equipped with spray liquid aggregation apparatus 7, and the lower end diameter of described spray liquid aggregation apparatus 7 is less than alkali wash water and stores the diameter that groove 2-2 and mixed liquor store groove 3-2 topmost.Spray liquid aggregation apparatus 7 can make spray liquid assemble to be back to alkali wash water to store groove 2-2 and mixed liquor stores groove 3-2.
Further, described waste gas alkali cleaning assembly is also furnished with alkali wash water adding set 2-4 and tapping equipment, and described alkali wash water adding set 2-4 comprises alkali cleaning flow container and agitating device, and alkali wash water adding set 2-4 is communicated with alkali wash water circulating pump 2-3 by pipeline with valve.
Described waste gas capture component is also furnished with seizure liquid adding set 3-4, catches liquid adding set 3-4 and is communicated with seizure liquid circulating pump 3-3 by pipeline with valve.
Further, waste gas capture component also connects mixed liquor piece-rate system 3-5, and in mixed liquor piece-rate system 3-5, realize benzinum and catch being separated of liquid, benzinum is recycled, catch liquid and enter seizure liquid spray equipment 3-1 by pipeline and circulating pump, recycle.
Further, described running water spray equipment 1-1, alkali wash water spray equipment 2-1 and seizure liquid spray equipment 3-1 are helical form spray equipment; The liquid ejected presents vaporific, and mixing together between water smoke, do not stay dead angle, be conducive to the contact area expanding waste gas and liquid, improve absorptivity and assimilation effect.
The alkali wash water that described waste gas alkali cleaning assembly adopts is sodium hydroxide solution; Described seizure liquid adopts ethylene glycol solution.
The matched proportion density of described alkali wash water, seizure liquid is determined according to the exhausted air quantity of process and exhaust gas concentration experiment.
Further preferred equipment, demister 4 is deflection plate demister.
For ease of overhaul of the equipments and equipment rotation, described dedusting and retracting device have and are arranged in parallel for subsequent use or two covers that simultaneously work each other, two cover dedustings are all communicated with gas sampling induction system by pipeline with valve with the exhaust gas inlet of retracting device, and two cover dedustings are all communicated with exhaust tube by pipeline with valve with the waste gas outlet of retracting device.Realize switching by valve, also can run by two complete equipments when exhausted air quantity is large simultaneously.
First waste gas enters in waste gas cleaning dust district 1 by air inlet pipe 1-4 and gas distribution pipe 1-5, running water sprays from uniform running water spray equipment 1-1, form countless fine mist, after waste gas fully mixes and contacts, the materials such as the dust in waste gas are absorbed in running water; Waste gas continues to rise and contacts with the alkali wash water that alkali wash water spray equipment 2-1 sprays, the polluter in gas and NaOH generation chemical reaction, and reaction product flows into bottom alkali wash water with alkali wash water and stores in groove 2-2; Waste gas continues rising and contacts with the seizure liquid that seizure liquid spray equipment 3-1 sprays, benzinum in gas flows into bottom mixed liquor with seizure liquid and stores in groove 3-2, and be pumped in mixed liquor piece-rate system 3-5, in mixed liquor piece-rate system 3-5, realize benzinum and catch being separated of liquid, benzinum is recycled, catch liquid and enter seizure liquid spray equipment 3-1 by pipeline and circulating pump, recycle; Then gas enters demister 4, and the drop in gas is here blocked; Then gas enters activated carbon adsorption layer 5, and the material be mingled with in gas and drop are here blocked and absorb, and so far waste gas is processed into clean gas, realizes qualified discharge.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (1)
1. the dedusting of benzinum waste gas and a retracting device, is characterized in that: described dedusting and retracting device comprise waste gas cleaning dust district (1), alkali cleaning district (2), capture area (3), demister (4), activated carbon adsorption layer (5) and exhaust fan (6);
Described waste gas cleaning dust district (1) is positioned at the foot of whole device; Waste gas cleaning dust assembly is provided with in described waste gas cleaning dust district (1), described waste gas cleaning dust assembly comprises the running water spray equipment (1-1) being positioned at waste gas cleaning dust assembly top, the dust waste water being positioned at waste gas cleaning dust assembly bottom catchments cone tank (1-2), and the dust waste water cone tank (1-2) that catchments is connected waste water oil partiting precipitation pool by dust discharge of wastewater valve (1-3) with pipeline; Waste gas cleaning dust district (1) middle and lower part is provided with air inlet pipe (1-4) and gas distribution pipe (1-5); Running water spray equipment (1-1) connects running water water inlet pipe (1-6);
Described alkali cleaning district (2) is provided with waste gas alkali cleaning assembly, and described waste gas alkali cleaning assembly comprises the alkali wash water spray equipment (2-1) being arranged in waste gas alkali cleaning assembly top, the alkali wash water being positioned at waste gas alkali cleaning assembly bottom stores groove (2-2) and the alkali wash water that alkali wash water stored groove pumps into the alkali wash water circulating pump (2-3) of alkali wash water spray equipment (2-1);
Described capture area (3) is provided with waste gas capture component, and described waste gas capture component comprises the seizure liquid spray equipment (3-1) being positioned at capture area internal upper part, the mixed liquor being positioned at waste gas capture component bottom stores groove (3-2) and enter to catch the seizure liquid circulating pump (3-3) of liquid spray equipment by catching liquid pump;
Described capture area (3) top is provided with demister (4), and described demister top is provided with activated carbon adsorption layer (5); Described dedusting and retracting device topmost are provided with exhaust fan (6);
Described alkali wash water stores groove (2-2) and mixed liquor stores the cross section of groove (3-2) for circular, alkali wash water stores groove (2-2) and mixed liquor and stores groove (3-2) top and be equipped with spray liquid aggregation apparatus (7), and the lower end diameter of described spray liquid aggregation apparatus (7) is less than alkali wash water and stores the diameter that groove (2-2) and mixed liquor store groove (3-2) topmost; Spray liquid aggregation apparatus (7) can make spray liquid assemble to be back to alkali wash water to store groove (2-2) and mixed liquor stores in groove (3-2);
Described waste gas alkali cleaning assembly is also furnished with alkali wash water adding set (2-4) and tapping equipment, described alkali wash water adding set (2-4) comprises alkali cleaning flow container and agitating device, and alkali wash water adding set (2-4) is communicated with alkali wash water circulating pump (2-3) by pipeline with valve; Waste gas capture component is also furnished with seizure liquid adding set (3-4), and described seizure liquid adding set (3-4) is communicated with seizure liquid circulating pump (3-3) by pipeline with valve; Demister (4) is deflection plate demister or overflowing board demister;
Described running water spray equipment (1-1), alkali wash water spray equipment (2-1) and seizure liquid spray equipment (3-1) are helical form spray equipment; The liquid ejected presents vaporific, and mixing together between water smoke;
For cylindrical, upper and lower two ends are conical tank body in the middle of described dedusting and retracting device, described tank body offers observation port and examine and replace mouth, tank body volume size can according to pending gas flow number and determine, adopt vertical vertical placement.
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CN201410648258.2A CN104492209A (en) | 2014-11-14 | 2014-11-14 | Petroleum ether exhaust-gas dedusting and recovery device |
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CN201410648258.2A CN104492209A (en) | 2014-11-14 | 2014-11-14 | Petroleum ether exhaust-gas dedusting and recovery device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104923067A (en) * | 2015-06-06 | 2015-09-23 | 常州大学 | Integrated CS2 exhaust air treatment device |
CN105032166A (en) * | 2015-06-10 | 2015-11-11 | 常州大学 | Integrated formaldehyde waste gas treatment device |
CN108404544A (en) * | 2018-03-08 | 2018-08-17 | 禹伟 | A kind of waste gas purification apparatus for petroleum fractionating |
CN112295387A (en) * | 2019-07-30 | 2021-02-02 | 株式会社东芝 | Carbon dioxide recovery system and method for operating carbon dioxide recovery system |
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JP2003250436A (en) * | 2001-12-28 | 2003-09-09 | Omega:Kk | Method and system for washing and sterilizing perishables or the like |
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Application publication date: 20150408 |