CN105727733A - Low-concentration organic exhaust gas fluidization tower - Google Patents
Low-concentration organic exhaust gas fluidization tower Download PDFInfo
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- CN105727733A CN105727733A CN201610057205.2A CN201610057205A CN105727733A CN 105727733 A CN105727733 A CN 105727733A CN 201610057205 A CN201610057205 A CN 201610057205A CN 105727733 A CN105727733 A CN 105727733A
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to a low-concentration organic exhaust gas fluidization tower. A muddy water zone, a fluidization zone, an adsorption oxidation zone, a dehumidification zone, an activated carbon adsorption zone and an exhaust fan are arranged from bottom to top of the tower in turn; the muddy water zone is designed as a tapered structure and is used for collecting the muddy water from the upper part; a draining valve is arranged at the bottom of the tapered structure; the draining valve is connected with a sludge thickener on the outer side of the tower; a fluidization drum is arranged in the fluidization zone; the fluidization drum has a cylindrical structure and is located at the center of the fluidization zone; the lower end opening of the fluidization drum is located at the bottom of the fluidization zone while the upper end opening is located on the upper part of the fluidization zone; a gas inlet pipe and a gas distributing pipe are arranged at the lower end of the fluidization drum; the gas distributing pipe is arranged in the shape of a concentric circle; the adsorption oxidation zone is located on the upper part of the fluidization zone; the dehumidification zone is arranged on the upper part of the adsorption oxidation zone; and the activated carbon adsorption zone is arranged on the upper part of the dehumidification zone.
Description
Technical field
The present invention relates to technical field of atmospheric pollution control, especially a kind of low-concentration organic exhaust gas fluidization tower.
Background technology
Along with developing rapidly of economical activities of mankind and production, the materials such as substantial amounts of waste gas and flue dust are also entered air by people while a large amount of consumption energy, particularly a large amount of of gasoline, paint, various organic solvent and other chemicals use the discharge causing volatile organic matter (VOCs) to increase sharply, so that VOCs becomes another the important gaseous contaminant except CO, SOx, NOx, wherein industrial production sector becomes one of VOCs main industry polluted.These organic exhaust gas mainly include hydro carbons (butane, dichloromethane), benzene homologues (benzene,toluene,xylene), alcohols (ethanol, methanol), aldoketones (formaldehyde, acetone, Ketohexamethylene) etc..These pollutant often have complicated component, of a great variety, toxicity is big, easily convert, difficult degradation easily accumulates, easy biological concentration, can the longer-term persistence feature such as in the environment; or even carcinogenic mutagenic " three cause " material of teratogenesis or interference human endocrine material; have a strong impact on environmental quality; affecting human health, the discharge capacity therefore cutting down VOCs becomes an important content of various countries' environmental protection work.
Owing to the pollutant often concentration of organic exhaust gas is low, large-minded, it is wide to pollute, heating power burns, catalysis burning, condensation, absorb and traditional treatment technology such as absorption more or less can also exist the limitation of economy, technology.Plasma technique is for processing one of each pollutant hot topic becoming research both at home and abroad.It has the advantages such as treating capacity is big, widely applicable, chemical reaction is rapid, easily operated in processing difficulty and dropping organic exhaust gas and is widely used, but this technology there is also some problems at present.
In recent years, Purification biotechnology is used for processing organic exhaust gas and increasingly comes into one's own.Purification biotechnology refers to cultivating microorganism on filtrate medium, microorganism utilizes the organic principle in waste gas as carbon source and the energy, Organic substance is decomposed into carbon dioxide and water, and Purification biotechnology is suitable for the gaseous contaminant processing low concentration, biodegradability is good.At present, external many countries all achieve successfully as the states such as Germany, Holland, the U.S. and Japan apply this technical finesse organic exhaust gas, and China's application is less.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the problem in existing VOCs treatment, it is provided that a kind of low-concentration organic exhaust gas fluidization tower, can effectively process various low-concentration organic exhaust gas, and simple in construction is easy to operate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of low-concentration organic exhaust gas fluidization tower, is upwards followed successively by muddy water district, fluidization regions, adsorption and oxidation district, dehumidifying district, activated carbon adsorption district and exhaust fan from tower bottom.
Described muddy water district is positioned at the foot of whole tower；Described muddy water district is designed to pyramidal structure, collects the muddy water from top, and the bottom of pyramidal structure is provided with drain valve, and drain valve connects the sludge concentration tank outside tower.
The division board of hole it is provided with between described muddy water district and fluidization regions.
Fluidisation cylinder it is provided with in described fluidization regions, fluidisation cylinder is cylindrical barrel structure, it is positioned at the center of fluidization regions, the lower ending opening of fluidisation cylinder is positioned at the bottom of fluidization regions, upper end open is positioned at the top of fluidization regions, the lower end of fluidisation cylinder is provided with air inlet pipe and gas distribution pipe, and described gas distribution pipe is arranged to concentric circles；The top of fluidisation cylinder is provided with nutritional solution spray equipment, described nutritional solution spray equipment is connected to nutrient solution adding device, described nutrient solution adding device includes nutrient tank and agitating device, nutrient solution adding device connects nutritional solution circulating pump by pipeline with valve, described nutritional solution spray equipment is helical form spray equipment, the liquid ejected presents vaporific, and mixing together between water smoke, does not stay dead angle.Being full of polyethylene fluidisation hollow ball in fluidization regions, described polyethylene fluidisation hollow ball has the advantage that unit volume Biomass is big.
Further, described nutritional solution is the supernatant of the sludge concentration tank outside low-concentration organic exhaust gas fluidization tower.
Described adsorption and oxidation district is positioned at the top of fluidization regions, and described adsorption and oxidation district is provided with adsorption stuffing, and described adsorption stuffing is mixed by concentration basin mud, feces of livestock and poultry, wood flour and polyethylene hollow ball 1:1:5:10 by volume.
Described top, adsorption and oxidation district is provided with dehumidifying district, big drop in gas is collected by dehumidifying district, and so as to return, reduces the moisture in gas, its operation principle is that gas enters dehumidifying district, through a series of bends, 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 in dehumidifying district, and rebounds under gravity.Dehumidifying district is provided with silk screen dehumidifier.
Described top, dehumidifying district is provided with activated carbon adsorption district, described activated carbon adsorption district arranges activated carbon, activated carbon require there is hole prosperity, specific surface area is big, adsorption rate is fast, friction resistant, resistance to flushing advantage, operation through the long period, discovery activated carbon becomes sticky, and need to change activated carbon when gas prompt drop is low in time.
Concrete, be two ends cylindrical, upper and lower in the middle of described low-concentration organic exhaust gas fluidization tower be cone tower body, described tower body offer observation port and overhauls replacement port, tower body volume size according to pending gas flow number and determine, adopt vertical vertical placement.
Clean gas for ease of having processed is discharged, and the conical tower body place of described low-concentration organic exhaust gas fluidization tower topmost is provided with exhaust fan.
nullThe invention has the beneficial effects as follows，Waste gas is entered in fluidization regions by air inlet pipe and gas distribution pipe，Gas distribution pipe realizes uniform gas distribution，Air-flow in fluidisation cylinder drives polyethylene fluidisation hollow ball to produce fluidization，And flow up，Polyethylene is fluidized hollow ball to wash away simultaneously，Air-flow drives polyethylene fluidisation hollow ball to enter the peripheral region of fluidisation cylinder，And constantly move from top to bottom under gravity，Polyethylene is fluidized hollow ball sprinkling nutritional solution by nutritional solution spray equipment simultaneously，Microorganism on polyethylene fluidisation hollow ball utilizes the nutrient substance in nutritional solution and the pollutant in waste gas to carry out self-reproduction，Mud and unnecessary nutritional solution that polyethylene fluidisation hollow ball comes off flow in muddy water district，The sludge concentration tank outside tower is entered by drain valve，The supernatant of sludge concentration tank is as nutritional solution，Nutritional solution spray equipment is entered back into by pipeline and circulating pump，Recycle；Waste gas ascends into adsorption and oxidation district, and the pollutant in waste gas are adsorbed the microorganism adsorption in filler and biochemical reaction occurs；Gas is subsequently into dehumidifying district, and the drop in gas is here blocked；Then gas enters activated carbon adsorption district, and the material being mingled with in gas and drop are intercepted here to be absorbed, and so far waste gas is processed into the gas of cleaning, it is achieved qualified discharge；The low-concentration organic exhaust gas fluidization tower simple in construction of the present invention, it is easy to manufacturing, easy to operate, operating cost is low, can effectively process various low-concentration organic exhaust 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. muddy water district, 1-1. drain valve, 1-2. division board, 2. fluidization regions, 2-1. fluidizes cylinder, 2-2. air inlet pipe, 2-3. gas distribution pipe, 2-4. nutritional solution spray equipment, 2-5. nutrient solution adding device, 2-6. nutritional solution circulating pump, 2-7. polyethylene fluidisation hollow ball, 3. adsorption and oxidation district, 3-1. adsorption stuffing, 4. dehumidifying district, 5. activated carbon adsorption district, 6. exhaust fan.
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, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment
A kind of low-concentration organic exhaust gas fluidization tower of the present invention as shown in Figure 1, is upwards followed successively by muddy water district 1, fluidization regions 2, adsorption and oxidation district 3, dehumidifying district 4, activated carbon adsorption district 5 and exhaust fan 6 from tower bottom.
Described muddy water district 1 is positioned at the foot of whole tower；Described muddy water district 1 is designed to pyramidal structure, collects the muddy water from top, and the bottom of pyramidal structure is provided with drain valve 1-1, drain valve 1-1 and connects the sludge concentration tank outside tower.
The division board 1-2 of hole it is provided with between described muddy water district 1 and fluidization regions 2.
Fluidisation cylinder 2-1 it is provided with in described fluidization regions 2, fluidisation cylinder 2-1 is cylindrical barrel structure, it is positioned at the center of fluidization regions 2, the lower ending opening of fluidisation cylinder 2-1 is positioned at the bottom of fluidization regions, upper end open is positioned at the top of fluidization regions, the lower end of fluidisation cylinder 2-1 is provided with air inlet pipe 2-2 and gas distribution pipe 2-3, and described gas distribution pipe 2-3 is arranged to concentric circles；The top of fluidisation cylinder 2-1 is provided with nutritional solution spray equipment 2-4, described nutritional solution spray equipment 2-4 is connected to nutrient solution adding device 2-5, described nutrient solution adding device includes nutrient tank and agitating device, nutrient solution adding device connects nutritional solution circulating pump 2-6 by pipeline with valve, described nutritional solution spray equipment 2-4 is helical form spray equipment, the liquid ejected presents vaporific, and mixing together between water smoke, does not stay dead angle.Being full of polyethylene fluidisation hollow ball 2-7 in fluidization regions, described polyethylene fluidisation hollow ball has the advantage that unit volume Biomass is big.
Further, described nutritional solution is the supernatant of the sludge concentration tank outside low-concentration organic exhaust gas fluidization tower.
Described adsorption and oxidation district 3 is positioned at the top of fluidization regions 2, and described adsorption and oxidation district 3 is provided with adsorption stuffing 3-1, described adsorption stuffing 3-1 and is mixed by concentration basin mud, feces of livestock and poultry, wood flour and polyethylene hollow ball 1:1:5:10 by volume.
Described top, adsorption and oxidation district is provided with dehumidifying district 4, big drop in gas is collected by dehumidifying district 4, and so as to return, reduces the moisture in gas, its operation principle is that gas enters dehumidifying district 4, through a series of bends, 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 in dehumidifying district, and rebounds under gravity.Dehumidifying district is provided with silk screen dehumidifier.
Described top, dehumidifying district is provided with activated carbon adsorption district 5, described activated carbon adsorption district 5 arranges activated carbon, activated carbon require there is hole prosperity, specific surface area is big, adsorption rate is fast, friction resistant, resistance to flushing advantage, operation through the long period, discovery activated carbon becomes sticky, and need to change activated carbon when gas prompt drop is low in time.
Concrete, be two ends cylindrical, upper and lower in the middle of described low-concentration organic exhaust gas fluidization tower be cone tower body, described tower body offer observation port and overhauls replacement port, tower body volume size according to pending gas flow number and determine, adopt vertical vertical placement.
Clean gas for ease of having processed is discharged, and the conical tower body place of described low-concentration organic exhaust gas fluidization tower topmost is provided with exhaust fan 6.
nullThe invention has the beneficial effects as follows: waste gas is entered in fluidization regions 2 by air inlet pipe 2-2 and gas distribution pipe 2-3，Gas distribution pipe 2-3 realizes uniform gas distribution，Air-flow in fluidisation cylinder 2-1 drives polyethylene fluidisation hollow ball 2-7 to produce fluidization，And flow up，Polyethylene is fluidized hollow ball 2-7 to wash away simultaneously，Air-flow drives polyethylene fluidisation hollow ball 2-7 to enter the peripheral region of fluidisation cylinder，And constantly move from top to bottom under gravity，Polyethylene is fluidized hollow ball sprinkling nutritional solution by nutritional solution spray equipment 2-4 simultaneously，Microorganism on polyethylene fluidisation hollow ball utilizes the nutrient substance in nutritional solution and the pollutant in waste gas to carry out self-reproduction，Mud and unnecessary nutritional solution that polyethylene fluidisation hollow ball 2-7 comes off flow in muddy water district 1，The sludge concentration tank outside tower is entered by drain valve 1-1，The supernatant of sludge concentration tank is as nutritional solution，Nutritional solution spray equipment 2-4 is entered back into by pipeline and circulating pump，Recycle；Waste gas ascends into adsorption and oxidation district 3, and the pollutant in waste gas are adsorbed the microorganism adsorption in filler 3-1 and biochemical reaction occurs；Gas is subsequently into dehumidifying district 4, and the drop in gas is here blocked；Then gas enters activated carbon adsorption district 5, and the material being mingled with in gas and drop are intercepted here to be absorbed, and so far waste gas is processed into the gas of cleaning, it is achieved qualified discharge.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily 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 in description, it is necessary to determine its technical scope according to right.
Claims (1)
1. a low-concentration organic exhaust gas fluidization tower, it is characterised in that: muddy water district (1), fluidization regions (2), adsorption and oxidation district (3), dehumidifying district (4), activated carbon adsorption district (5) and exhaust fan (6) upwards it is followed successively by from tower bottom；
Described muddy water district (1) is positioned at the foot of whole tower, described muddy water district (1) is designed to pyramidal structure, collect the muddy water from top, the bottom of pyramidal structure is provided with drain valve (1-1), and drain valve (1-1) connects the sludge concentration tank outside tower；
The division board (1-2) of hole it is provided with between described muddy water district (1) and fluidization regions (2)；
Fluidisation cylinder (2-1) it is provided with in described fluidization regions (2), fluidisation cylinder (2-1) is cylindrical barrel structure, it is positioned at the center of fluidization regions (2), the lower ending opening of fluidisation cylinder (2-1) is positioned at the bottom of fluidization regions, upper end open is positioned at the top of fluidization regions, the bottom of fluidisation cylinder (2-1) is provided with air inlet pipe (2-2) and gas distribution pipe (2-3), and described gas distribution pipe (2-3) is arranged to concentric circles；The top of fluidisation cylinder (2-1) is provided with nutritional solution spray equipment (2-4), described nutritional solution spray equipment (2-4) is connected to nutrient solution adding device (2-5), described nutrient solution adding device includes nutrient tank and agitating device, nutrient solution adding device connects nutritional solution circulating pump (2-6) by pipeline with valve, described nutritional solution spray equipment (2-4) is helical form spray equipment, the liquid ejected presents vaporific, and mixing together between water smoke, do not stay dead angle；Being full of polyethylene fluidisation hollow ball (2-7) in fluidization regions, described polyethylene fluidisation hollow ball has the advantage that unit volume Biomass is big；
Described nutritional solution is the supernatant of the sludge concentration tank outside low-concentration organic exhaust gas fluidization tower；
Described adsorption and oxidation district (3) is positioned at the top of fluidization regions (2), described adsorption and oxidation district (3) is provided with adsorption stuffing (3-1), and described adsorption stuffing (3-1) is mixed by concentration basin mud, feces of livestock and poultry, wood flour and polyethylene hollow ball 1:1:5:10 by volume；
Described top, adsorption and oxidation district is provided with dehumidifying district (4), dehumidifying district (4) is to be collected by the big drop in gas, and so as to return, reducing the moisture in gas, its operation principle is that gas enters dehumidifying district (4), through a series of bends, discharge from top, and water droplet is due to the effect of its quality and kinetic energy, through racetrack portion, collide the surface in dehumidifying district, and rebound under gravity；Dehumidifying district is provided with silk screen dehumidifier；
Described top, dehumidifying district is provided with activated carbon adsorption district (5), described activated carbon adsorption district (5) arranges activated carbon, activated carbon require there is hole prosperity, specific surface area is big, adsorption rate is fast, friction resistant, resistance to flushing advantage, operation through the long period, it has been found that need to change in time when activated carbon becomes sticky, gas prompt drop is low；
Be two ends cylindrical, upper and lower in the middle of described low-concentration organic exhaust gas fluidization tower be cone tower body, tower body offer observation port and overhauls replacement port, tower body volume size according to pending gas flow number and determine, adopt vertical vertical placement；
Clean gas for ease of having processed is discharged, and the conical tower body place of described low-concentration organic exhaust gas fluidization tower topmost is provided with exhaust fan (6).
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| CN201610057205.2A CN105727733B (en) | 2016-01-27 | 2016-01-27 | A kind of low-concentration organic exhaust gas fluidization tower |
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| CN201610057205.2A CN105727733B (en) | 2016-01-27 | 2016-01-27 | A kind of low-concentration organic exhaust gas fluidization tower |
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Cited By (7)
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| CN106995258A (en) * | 2017-05-05 | 2017-08-01 | 常州大学 | A kind of sludge with high silver processing unit |
| CN107511069A (en) * | 2017-09-22 | 2017-12-26 | 苏州仁益生物科技有限公司 | A kind of efficient energy-saving emission-control equipment |
| CN108295631A (en) * | 2018-01-18 | 2018-07-20 | 浙江大学 | A method of using gas-lifting type filler biological reactor for treatment organic exhaust gas |
| CN108298766A (en) * | 2018-01-19 | 2018-07-20 | 常州大学 | Sodium methyl mercaptide production wastewater treatment device |
| CN109316937A (en) * | 2018-11-15 | 2019-02-12 | 临沂齐泽医药技术有限公司 | A kind of wet boiler fume desulfurizing and dedusting device |
| CN110292854A (en) * | 2019-07-03 | 2019-10-01 | 浙江工商大学 | A kind of pulse plasma couples the apparatus and method of double-fluidized-bed catalytic degradation VOCs |
| CN113413729A (en) * | 2021-05-24 | 2021-09-21 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106995258A (en) * | 2017-05-05 | 2017-08-01 | 常州大学 | A kind of sludge with high silver processing unit |
| CN107511069A (en) * | 2017-09-22 | 2017-12-26 | 苏州仁益生物科技有限公司 | A kind of efficient energy-saving emission-control equipment |
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| CN109316937A (en) * | 2018-11-15 | 2019-02-12 | 临沂齐泽医药技术有限公司 | A kind of wet boiler fume desulfurizing and dedusting device |
| CN110292854A (en) * | 2019-07-03 | 2019-10-01 | 浙江工商大学 | A kind of pulse plasma couples the apparatus and method of double-fluidized-bed catalytic degradation VOCs |
| CN110292854B (en) * | 2019-07-03 | 2021-10-29 | 浙江工商大学 | Device and method for catalytic degradation of VOCs (volatile organic compounds) by pulse plasma coupling double fluidized beds |
| CN113413729A (en) * | 2021-05-24 | 2021-09-21 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
| CN113413729B (en) * | 2021-05-24 | 2022-07-19 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
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| CN105727733B (en) | 2018-06-26 |
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