CN104437047A - Dedusting denitration and desulphurization device - Google Patents
Dedusting denitration and desulphurization device Download PDFInfo
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- CN104437047A CN104437047A CN201410599090.0A CN201410599090A CN104437047A CN 104437047 A CN104437047 A CN 104437047A CN 201410599090 A CN201410599090 A CN 201410599090A CN 104437047 A CN104437047 A CN 104437047A
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Abstract
The invention relates to a dedusting denitration and desulphurization device. The dedusting denitration and desulphurization device is provided with a waste gas cleaning and dedusting area, a denitration area, a desulphurization area, a demister, an activated carbon adsorption layer and an exhausting fan sequentially from bottom to top, wherein a waste gas cleaning and dedusting assembly is arranged in the waste gas cleaning and dedusting area and comprises a running water spraying device, a dusty waste water collecting cone tank, a gas inlet pipe and a gas distributing pipe; a waste gas denitration assembly is arranged in the denitration area and comprises a denitration solution spraying device and a denitration solution storage tank; a waste gas desulphurization assembly is arranged in the desulphurization area and comprises a desulphurization solution spraying device, a desulphurization solution storage tank and a desulphurization solution circulating pump for pumping desulphurization solution in the desulphurization solution storage tank into the desulphurization solution spraying device; the dedusting denitration and desulphurization device is cylindrical in middle and is provided with conical tank bodies at the top end and the bottom end, the tank bodies are arranged vertically; the running water spraying device, the denitration solution spraying device and the desulphurization solution spraying device are spiral spraying devices, and the demister is a baffle plate demister or a cyclone plate demister.
Description
Technical field
The present invention relates to technical field of atmospheric pollution control, especially a kind of dedusting denitration desulfurizer.
Background technology
In recent years along with the fast development of economy and the propelling of process of industrialization, discharge amount of exhaust gas continues to increase, the gray haze contained in air causes serious haze weather, nitrogen oxide, sulfur dioxide cause air quality constantly to decline, cause very large harm to the living environment of people, the improvement therefore strengthening exhaust emission has become the important topic of current efforts at environmental protection.
The process equipment that current air pollution control adopts only processes for Single Pollution thing mostly, and dust in waste gas, nitrogen oxide, sulfur dioxide often exist, if waste gas treatment equipment complex structure, complex operation, processing cost can be caused to increase these combination of facilities together simultaneously.
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 denitration desulfurizer is provided, effectively can processes the various complex waste gas being rich in dust, nitrogen oxide, sulfur dioxide.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dedusting denitration desulfurizer, is upwards followed successively by waste gas cleaning dust district, denitration region, desulfurization zone, 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 effluent settling chamber 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 denitration region is provided with exhaust gas denitration assembly, and described exhaust gas denitration assembly comprises the denitration liquid spray equipment being positioned at exhaust gas denitration assembly top, the denitration liquid being positioned at exhaust gas denitration assembly bottom stores groove; Denitration liquid stores trench bottom and is designed to pyramidal structure, and is provided with sediment discharge pipe and sediment discharge valve, and denitration liquid stores in groove and is provided with three phase separator, and three phase separator top is provided with overfalling weir, and overfalling weir connects denitration liquid delivery pipe and denitration liquid circulating pump.
Described desulfurization zone is provided with exhuast gas desulfurization assembly, and described exhuast gas desulfurization assembly comprises the doctor solution spray equipment being arranged in desulfurization zone internal upper part, the doctor solution being positioned at exhuast gas desulfurization assembly bottom stores groove and the doctor solution that doctor solution stored groove pumps into the doctor solution circulating pump of doctor solution spray equipment.
Described top, desulfurization zone 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, for cylindrical, upper and lower two ends are conical tank body in the middle of described dedusting denitration desulfurizer, 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.
Clean gas for ease of processing is discharged, and the conical tank body place of described dedusting denitration desulfurizer topmost is provided with exhaust fan.
Further and cylindrical tank container matches, described doctor solution stores the cross section of groove for circular, denitration liquid stores groove and doctor solution 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 denitration liquid and stores the diameter that groove and doctor solution store groove topmost.Spray liquid aggregation apparatus can make spray liquid assemble to be back to denitration liquid to store groove and doctor solution stores groove.
Further, described exhaust gas denitration assembly is also furnished with denitration liquid adding set, and described denitration liquid adding set comprises denitration flow container and agitating device, and denitration liquid adding set is communicated with denitration liquid circulating pump by pipeline with valve; Exhuast gas desulfurization assembly is also furnished with doctor solution adding set, and described doctor solution adding set comprises desulfurization flow container and agitating device, and doctor solution adding set is communicated with doctor solution circulating pump by pipeline with valve.The matched proportion density of denitration liquid, doctor solution decides according to the exhausted air quantity of process and exhaust gas concentration.
Further, described running water spray equipment, denitration liquid spray equipment and doctor solution spray equipment are helical form spray equipment; The water 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 denitration liquid that described exhaust gas denitration assembly adopts is the mixture of ferrous chelating agent and iron powder, and the doctor solution that described exhuast gas desulfurization assembly adopts is ammoniacal liquor.
Further preferred equipment, demister is deflection plate demister or overflowing board demister.
The invention has the beneficial effects as follows, first waste gas enters 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 denitration liquid that denitration liquid spray equipment sprays, nitrogen oxide in gas and ferrous chelating agent and iron powder generation chemical reaction, reaction product flows into bottom denitration liquid with denitration liquid and stores in groove, three phase separator realizes gas, solid is separated with liquid, and sediment is discharged valve and emits; Gas continues to rise and contacts with the doctor solution that doctor solution spray equipment sprays, the sulfur dioxide in gas and doctor solution generation chemical reaction, and reaction product flows into bottom doctor solution with doctor solution and stores in groove; 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 denitration desulfurizer structure of the present invention is simple, is easy to manufacture, and can effectively purify the waste gas being rich in dust, nitrogen oxide and sulfur dioxide.
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. denitration region, 2-1. denitration liquid spray equipment, 2-2. denitration liquid stores groove, 2-3. sediment discharge pipe, 2-4. sediment discharge valve, 2-5. three phase separator, 2-6. overfalling weir, 2-7. denitration liquid delivery pipe, 2-8. denitration liquid circulating pump, 2-9. denitration liquid adding set, 3. desulfurization zone, 3-1. doctor solution spray equipment, 3-2. doctor solution stores groove, 3-3. doctor solution circulating pump, 3-4. doctor solution adding set, 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
Of the present invention a kind of dedusting denitration desulfurizer as shown in Figure 1, is upwards followed successively by waste gas cleaning dust district 1, denitration region 2, desulfurization zone 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 effluent settling chamber 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 denitration region 2 is provided with exhaust gas denitration assembly, and described exhaust gas denitration assembly comprises the denitration liquid spray equipment 2-1 being positioned at exhaust gas denitration assembly top, the denitration liquid being positioned at exhaust gas denitration assembly bottom stores groove 2-2; Denitration liquid stores the tapered structure of groove 2-2 bottom design, and be provided with sediment discharge pipe 2-3 and sediment discharge valve 2-4, denitration liquid stores in groove 2-2 and is provided with three phase separator 2-5, three phase separator top is provided with overfalling weir 2-6, and overfalling weir connects denitration liquid delivery pipe 2-7 and denitration liquid circulating pump 2-8.
Described desulfurization zone 3 is provided with exhuast gas desulfurization assembly, and described exhuast gas desulfurization assembly comprises the doctor solution spray equipment 3-1 being arranged in desulfurization zone internal upper part, the doctor solution being positioned at exhuast gas desulfurization assembly bottom stores groove 3-2 and the doctor solution that doctor solution stored groove 3-2 pumps into the doctor solution circulating pump 3-3 of doctor solution spray equipment 3-1.
Described top, desulfurization zone 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, 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, for cylindrical, upper and lower two ends are conical tank body in the middle of described dedusting denitration desulfurizer, 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.
Clean gas for ease of processing is discharged, and the conical tank body place of described dedusting denitration desulfurizer topmost is provided with exhaust fan 6.
Further and cylindrical tank container matches, described doctor solution stores the cross section of groove 3-2 for circular, denitration liquid stores groove 2-2 and doctor solution 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 denitration liquid and stores the diameter that groove 2-2 and doctor solution store groove 3-2 topmost.Spray liquid aggregation apparatus 7 can make spray liquid assemble to be back to denitration liquid to store groove 2-2 and doctor solution stores groove 3-2.
Further, described exhaust gas denitration assembly is also furnished with denitration liquid adding set 2-9, and described denitration liquid adding set 2-9 comprises denitration flow container and agitating device, and denitration liquid adding set 2-9 is communicated with denitration liquid circulating pump 2-8 by pipeline with valve; Exhuast gas desulfurization assembly is also furnished with doctor solution adding set 3-4, and described doctor solution adding set 3-4 comprises desulfurization flow container and agitating device, and doctor solution adding set 3-4 is communicated with doctor solution circulating pump 3-3 by pipeline with valve.The matched proportion density of denitration liquid, doctor solution decides according to the exhausted air quantity of process and exhaust gas concentration.
Further, described running water spray equipment 1-1, denitration liquid spray equipment 2-1 and doctor solution spray equipment 3-1 are helical form spray equipment; The water 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 denitration liquid that described exhaust gas denitration assembly adopts is the mixture of ferrous chelating agent and iron powder, and the doctor solution that described exhuast gas desulfurization assembly adopts is ammoniacal liquor.
Further preferred equipment, demister 4 is deflection plate demister.
For ease of overhaul of the equipments and equipment rotation, described dedusting denitration desulfurizer has and is arranged in parallel for subsequent use or two covers that simultaneously work each other, the exhaust gas inlet of two cover catalytic converters is all communicated with gas sampling induction system by pipeline with valve, and the exhaust gas inlet of two cover dedusting denitration desulfurizers is all communicated with exhaust tube by pipeline with valve.Realize switching by valve, also can run by two complete equipments when exhausted air quantity is large simultaneously.
The invention has the beneficial effects as follows, 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 denitration liquid that denitration liquid spray equipment 2-1 sprays, nitrogen oxide in waste gas and ferrous chelating agent and iron powder generation chemical reaction, reaction product flows into bottom denitration liquid with denitration liquid and stores in groove 2-2, three phase separator 2-5 realizes gas, solid is separated with liquid, and sediment precipitated thing drain valve 2-4 emits; Waste gas continues to rise and contacts with the doctor solution that doctor solution spray equipment 3-1 sprays, the sulfur dioxide in waste gas and doctor solution generation chemical reaction, and reaction product flows into bottom doctor solution with doctor solution and stores in groove 3-2; 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 (3)
1. a dedusting denitration desulfurizer, is characterized in that: described device comprises waste gas cleaning dust district (1), denitration region (2), desulfurization zone (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, 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 effluent settling chamber by dust discharge of wastewater valve (1-3) with pipeline, enters municipal wastewater pipe network after wastewater treatment is up to standard; 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 denitration region (2) is provided with exhaust gas denitration assembly, and described exhaust gas denitration assembly comprises the denitration liquid spray equipment (2-1) being positioned at exhaust gas denitration assembly top, the denitration liquid being positioned at exhaust gas denitration assembly bottom stores groove (2-2); Denitration liquid stores the tapered structure of groove (2-2) bottom design, and be provided with sediment discharge pipe (2-3) and sediment discharge valve (2-4), denitration liquid stores in groove (2-2) and is provided with three phase separator (2-5), three phase separator top is provided with overfalling weir (2-6), and overfalling weir connects denitration liquid delivery pipe (2-7) and denitration liquid circulating pump (2-8);
Described desulfurization zone (3) is provided with exhuast gas desulfurization assembly, and described exhuast gas desulfurization assembly comprises the doctor solution spray equipment (3-1) being arranged in desulfurization zone internal upper part, the doctor solution being positioned at exhuast gas desulfurization assembly bottom stores groove (3-2) and the doctor solution that doctor solution stored groove (3-2) pumps into the doctor solution circulating pump (3-3) of doctor solution spray equipment (3-1);
Described top, desulfurization zone is provided with demister (4), and described demister top is provided with activated carbon adsorption layer (5); Described dedusting denitration desulfurizer topmost is provided with exhaust fan (6);
Described doctor solution stores the cross section of groove (3-2) for circular, denitration liquid stores groove (2-2) and doctor solution 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 denitration liquid and stores the diameter that groove (2-2) and doctor solution store groove (3-2) topmost; Spray liquid aggregation apparatus (7) can make spray liquid assemble to be back to denitration liquid to store groove (2-2) and doctor solution stores groove (3-2);
Described exhaust gas denitration assembly is also furnished with denitration liquid adding set (2-9), described denitration liquid adding set (2-9) comprises denitration flow container and agitating device, and denitration liquid adding set (2-9) is communicated with denitration liquid circulating pump (2-8) by pipeline with valve; Exhuast gas desulfurization assembly is also furnished with doctor solution adding set (3-4), described doctor solution adding set (3-4) comprises desulfurization flow container and agitating device, and doctor solution adding set (3-4) is communicated with doctor solution circulating pump (3-3) by pipeline with valve; Demister (4) is deflection plate demister or overflowing board demister.
2. dedusting denitration desulfurizer according to claim 1, it is characterized in that: for cylindrical, upper and lower two ends are conical tank body in the middle of described dedusting denitration desulfurizer, described tank body offers observation port and examine and replace mouth, tank body volume size can be determined according to the number of pending gas flow, adopts vertical vertical placement.
3. dedusting denitration desulfurizer according to claim 1, is characterized in that: described running water spray equipment (1-1), denitration liquid spray equipment (2-1) and doctor solution spray equipment (3-1) are helical form spray equipment; The water ejected presents vaporific, and mixing together between water smoke, do not stay dead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599090.0A CN104437047A (en) | 2014-10-30 | 2014-10-30 | Dedusting denitration and desulphurization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410599090.0A CN104437047A (en) | 2014-10-30 | 2014-10-30 | Dedusting denitration and desulphurization device |
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| CN104437047A true CN104437047A (en) | 2015-03-25 |
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| CN201410599090.0A Pending CN104437047A (en) | 2014-10-30 | 2014-10-30 | Dedusting denitration and desulphurization device |
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Cited By (8)
| 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 |
| CN106669392A (en) * | 2016-12-23 | 2017-05-17 | 常州大学 | Waste gas treatment device for setting machine |
| CN108465302A (en) * | 2018-04-04 | 2018-08-31 | 李威 | A kind of environment-friendly type industrial waste gas absorption equipment |
| CN108744905A (en) * | 2018-06-13 | 2018-11-06 | 郭秋娥 | Industrial waste gas dedusting denitration sulfur removal technology |
| CN108744887A (en) * | 2018-06-13 | 2018-11-06 | 郭秋娥 | Waste gas dedusting denitration desulfurization device |
| CN108939860A (en) * | 2018-08-30 | 2018-12-07 | 常州大学 | A kind of coal-combustion fume purifier |
| CN112360604A (en) * | 2020-10-21 | 2021-02-12 | 中船动力研究院有限公司 | Exhaust gas utilization and treatment integrated device, ship main engine and ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112360604A (en) * | 2020-10-21 | 2021-02-12 | 中船动力研究院有限公司 | Exhaust gas utilization and treatment integrated device, ship main engine and ship |
| CN112360604B (en) * | 2020-10-21 | 2024-04-19 | 中船动力研究院有限公司 | Exhaust gas utilization and treatment integrated device, ship main engine and ship |
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Application publication date: 20150325 |