CN207137663U - A kind of VOCs organic waste gas treatment equipments - Google Patents

Abstract

The utility model discloses a kind of VOCs organic waste gas treatment equipments, it is related to chemical emission process field, is sequentially connected with inlet duct, washing spray column, moisture trap, UV catalysis photodissociation device, active carbon purifying tower, blower fan and exhaust apparatus；The air inlet of washing spray column is arranged on the side wall lower ends of washing spray column, the air outlet of washing spray column is arranged on the top of washing spray column, moisture trap is arranged at air outlet, washing spray column be internally located at site layer between moisture trap and air inlet be provided with it is some assemble to spray equipment and packing layer, the spray equipment be located at packing layer top；The utility model is by washing spray column, UV is catalyzed photodissociation device, active carbon purifying tower carries out triple purifications to VOCs organic exhaust gas, and purge amount is big, and purification efficiency is high, good purification, and residual volatile organic compound quantity is few in waste gas.

Description

A kind of VOCs organic waste gas treatment equipments

Technical field

It the utility model is related to chemical emission process field, and in particular to a kind of VOCs organic waste gas treatment equipments.

Background technology

VOCs is VOC (Volatile Organic Compounds) english abbreviation.VOCs presses it Chemical constitution can be divided into：Alkanes, aromatic hydrocarbons, esters, aldehydes and other etc., what is identified at present has a kind more than 300, most common There are benzene,toluene,xylene, styrene, trichloro ethylene, chloroform, trichloroethanes, diisocyanate (TDI), two isocyanide toluene Ester etc..

After VOCs invades human body by respiratory tract and skin, many systems such as breathing, blood and the liver of people can be caused With orga- nogenesis is temporary or permanent lesion, or even cause canceration, cause the great attention of people extensively.

In order to keep the air quality in environment, people using condensation method, absorption method, absorption process, combustion method, activated carbon, The methods of plasma, UV photocatalysis, catalysis oxidation, removes VOCs organic exhaust gas.With requirement of the people to environment increasingly Height, existing equipment processing limited amount, treatment effect is undesirable, and residual volatile organic compound quantity is larger, it is more difficult to meets Actual demand.

The content of the invention

The purpose of this utility model is：For existing equipment limited amount, treatment effect is undesirable, and residual volatile has The problem of machine compound amounts are larger, the utility model provide a kind of VOCs organic waste gas treatment equipments.

The technical solution adopted in the utility model is as follows：

A kind of VOCs organic waste gas treatment equipments, it is sequentially connected with inlet duct, washing spray column, moisture trap, UV and urges Change photodissociation device, active carbon purifying tower, blower fan and exhaust apparatus；

The air inlet of the washing spray column is arranged on the side wall lower ends of washing spray column, and the air outlet for washing spray column is set Put and be arranged in the top of washing spray column, the moisture trap at air outlet, washing spray column is internally located at gas-water separation Site layer between device and air inlet be provided with it is some assemble to spray equipment and packing layer, the spray equipment is located at packing layer Top；The structure of washing spray column is advantageous to waste gas elution fully, net by washing spray column, UV catalysis photodissociation device, activated carbon Change tower and triple purifications are carried out to VOCs organic exhaust gas, purge amount is big, and purification efficiency is high, good purification, remaining volatilization in waste gas Property organic compound quantity is few.

Preferably, roughing efficiency air filter is provided between the air-intake device and air inlet, the just effect device is by keeping off Plate and screen cloth are formed；Roughing efficiency air filter can effectively remove contained larger sticky solid particles in VOCs organic exhaust gas, avoid blocking up Plug washing spray column.

Preferably, the photochemical catalyst that the UV catalysis photodissociation device uses is nano titanium oxide；Nano titanium oxide Oxidability is strong, chemical property stablize it is nontoxic, be advantageous to waste gas UV be catalyzed photodissociation device in reach preferable clean-up effect.

Preferably, the packing material of described filler layer is Raschig ring；Raschig ring is simple in construction, cheap, can carry For the contact surface that gas-liquid two-phase is enough, the time of contact of waste gas and filler surface liquid film is extended, is advantageous to the dirt in waste gas Thing dissolving is contaminated, reaches preferable clean-up effect.

Preferably, the inlet duct is provided with air inlet peephole, and the UV catalysis photodissociation device is provided with humidity peep hole, The active carbon purifying tower is provided with activated carbon peep hole, and the exhaust apparatus is provided with discharge peephole；Multiple peepholes are set, side Just collecting device operation conditions and exhaust-gas treatment situation, can be adjusted in time, are in preferable working condition beneficial to equipment, are also ensured Waste gas has preferable treatment effect.

Preferably, the moisture trap is arranged on above spray equipment, and the washing spray tower bottom is provided with row Dirty mouth, the sewage draining exit are connected with circulating water pool, and the circulating water pool is connected with spray equipment；Recirculated water rationally is utilized, is saved Water resource, it is economic and environment-friendly, it is convenient and reliable, effectively avoid spraying effect because of the washing that Circulation water density is high and influences to organic exhaust gas Fruit.

Preferably, chemicals dosing plant is provided between the spray equipment and circulating water pool, the shower nozzle of spray equipment is rotation Rotatable shower nozzle；The setting of chemicals dosing plant, it is easy to launch cleanser to spray equipment, accelerates the pollutant dissolving in waste gas, rotation Formula shower nozzle is beneficial to spray equipment and keeps uniform spray state, ensures the continual and steady purification to waste gas.

In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：

The utility model is by washing spray column, UV is catalyzed photodissociation device, active carbon purifying tower is carried out to VOCs organic exhaust gas Triple purifications, and from each equipment reality, optimize device parameter, kept steadily in the long term beneficial to equipment preferable to waste gas Treatment effect and higher treatment effeciency, it is economic and environment-friendly, it is convenient and reliable.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

In figure mark for：1- inlet ducts, 2- washing spray columns, 201- air inlets, 202- air outlets, 3-UV catalysis photodissociation Device, 4- active carbon purifying towers, 5- blower fans, 6- exhaust apparatus.

Embodiment

Below in conjunction with the accompanying drawing in the example of the utility model, the technical scheme in the example of the utility model is carried out clear Chu, complete description.Obviously, described example is only the utility model part of the embodiment, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment obtained, belongs to the scope of protection of the utility model.

Embodiment 1

As shown in figure 1, a kind of VOCs organic waste gas treatment equipments, are sequentially connected with inlet duct 1, washing spray column 2, air water Separator, UV catalysis photodissociation device 3, active carbon purifying tower 4, blower fan 5 and exhaust apparatus 6；

The air inlet 201 of the washing spray column 2 is arranged on the side wall lower ends of washing spray column 2, and washing spray column 2 goes out Air port 202 is arranged on the top of washing spray column 2, and the moisture trap is arranged at air outlet 202, washes in spray column 2 Site layer of the portion between moisture trap and air inlet 201 be provided with it is some assemble to spray equipment and packing layer, it is described Spray equipment is located above packing layer.

The cleaning principle of the present embodiment：VOCs organic exhaust gas enters water washing spray leaching tower 2 after the unified collection of admission line 1, During through packing layer, the liquid film formed after packing layer spray filler space is collided with spray equipment and contacted, waste gas In the liquid film that is coated on filler surface of contained fusibility small particles of pollution thing intercept, capture and absorbed, Ran Housui Liquid film flows down, and being sink to the washing bottom of towe of spray column 2 under gravity makes the particulate pollutant in waste gas obtain for the first time only Change；Waste gas after spray cleaning carries a large amount of water smokes, and water smoke is further sloughed by moisture trap；Then waste gas passes through UV Photodissociation device 3 is catalyzed, after the UV ultraviolet beams irradiation that UV catalysis photodissociation devices 3 are launched, is cracked into low molecular compound, such as CO₂、 H₂The photochemical catalyst of O etc., UV catalysis photodissociation device 3 produces electron-hole pair, electron-hole pair and surrounding under ultraviolet light Water, after oxygen has an effect, be just provided with extremely strong oxidationreduction ability, aldehydes contained in waste gas, hydro carbons etc. had Organic pollutants directly resolve into harmless tasteless material, and waste gas carries out the under the double action of ultraviolet beam and photochemical catalyst Double purification processing；Waste gas provides power by blower fan 5, and malleation or negative pressure enter in active carbon purifying tower 4, due to activated charcoal solid There is lack of equilibrium and unsaturated molecular attraction or valence bond power on surface, therefore when waste gas contacts with activated carbon surface, Gas molecule just can be attracted, its dense coalescence is maintained at the surface of solids, the polluter and smell in waste gas are real so as to adsorbed The third time purified treatment of existing waste gas；For waste gas after active carbon purifying tower 4, obtained purification gas high-altitude passes through exhaust apparatus Discharged.

The structure of washing spray column 2 that the present embodiment water uses is advantageous to waste gas elution fully, by washing spray column 2, UV Photodissociation device 3, active carbon purifying tower 4 are catalyzed to the triple purifications of VOCs organic exhaust gas progress, purge amount is big, and purification efficiency is high, purification Effect is good, and residual volatile organic compound quantity is few in waste gas.

Embodiment 2

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 1, Roughing efficiency air filter is provided between the air-intake device 1 and air inlet 201, the just effect device is made up of baffle plate and screen cloth；Just Effect filter can effectively remove contained larger sticky solid particles in VOCs organic exhaust gas, avoid blocking washing spray column.

Embodiment 3

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 1, The photochemical catalyst that the UV catalysis photodissociation device 3 uses is nano titanium oxide；Nano titanium oxide oxidability is strong, chemical property Stablize it is nontoxic, be advantageous to waste gas UV be catalyzed photodissociation device 3 in reach preferable clean-up effect.

Embodiment 4

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 1, The packing material of described filler layer is Raschig ring；Raschig ring is simple in construction, cheap, can provide gas-liquid two-phase enough contacts Surface, the time of contact of waste gas and filler surface liquid film is extended, be advantageous to the pollutant dissolving in waste gas, reach preferably net Change effect.

Embodiment 5

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 1, The inlet duct 1 is provided with air inlet peephole, and the UV catalysis photodissociation device 3 is provided with humidity peep hole, the active carbon purifying tower 4 Provided with activated carbon peep hole, the exhaust apparatus 6 is provided with discharge peephole；Multiple peepholes are set, facilitate collecting device to run Situation and exhaust-gas treatment situation, can be adjusted in time, are in preferable working condition beneficial to equipment, are also ensured that waste gas has preferable place Manage effect.

Embodiment 6

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 1, Washing spray column 2 bottom is provided with sewage draining exit, and the sewage draining exit is connected with circulating water pool, the circulating water pool and spray equipment It is connected.

The course of work of the present embodiment：Contained fusibility small particles of pollution thing is coated over the filler of packing layer in waste gas Liquid film on surface is intercepted, captured and absorbed, and is then flowed down with liquid film, is sink to the bottom of towe of spray column 2 under gravity, Water smoke also after moisture trap separates also is sink to the bottom of towe of spray column 2, and leads to circulating water pool by blow-off pipe, in recirculated water Used in pond through precipitating, filtering Posterior circle, outward transport of being packed after sediment desiccation is disposed by specialized company；When circulation fluid reaches certain dense After degree, fresh water should be supplemented, discarded circulation fluid is discharged into waste water station or hands over professional Waste disposal company disposal.

The present embodiment rationally utilizes recirculated water, and saving water resource is economic and environment-friendly, convenient and reliable, effectively avoids because of recirculated water Concentration is high and influences the washing spraying effect to organic exhaust gas.

Embodiment 7

As shown in figure 1, further optimized on the basis of the VOCs organic waste gas treatment equipments described in embodiment 6, Chemicals dosing plant is provided between the spray equipment and circulating water pool, the shower nozzle of spray equipment is rotating sprinkler；Chemicals dosing plant Set, be easy to launch cleanser to spray equipment, accelerate the pollutant dissolving in waste gas, rotating sprinkler is protected beneficial to spray equipment Uniform spray state is held, ensures the continual and steady purification to waste gas.

, it will be apparent to those skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and In the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which, the utility model embodiment all should be regarded as exemplary, and be nonrestrictive The scope of the utility model is limited by appended claim rather than described above, it is intended that by fall in the claims etc. Included with all changes in the implication and scope of condition in the utility model, should not be by any accompanying drawing mark in claim Note is considered as the involved claim of limitation.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical scheme in each embodiment can also pass through appropriate combination collocation, form this area The other embodiment that technical staff is appreciated that.

Claims (7)

1. A kind of 1. VOCs organic waste gas treatment equipments, it is characterised in that：Be sequentially connected with inlet duct (1), washing spray column (2), Moisture trap, UV catalysis photodissociation devices (3), active carbon purifying tower (4), blower fan (5) and exhaust apparatus (6)；

   The air inlet (201) of the washing spray column (2) is arranged on the side wall lower ends of washing spray column (2), washing spray column (2) Air outlet (202) be arranged on the top of washing spray column (2), the moisture trap is arranged on air outlet (202) place, washes Spray column (2) be internally located at site layer between moisture trap and air inlet (201) be provided with it is some assemble to spray equipment And packing layer, the spray equipment are located above packing layer.
2. 2. VOCs organic waste gas treatment equipments according to claim 1, it is characterised in that：The inlet duct (1) is with entering Roughing efficiency air filter is provided between air port (201), the just effect device is made up of baffle plate and screen cloth.
3. 3. VOCs organic waste gas treatment equipments according to claim 1, it is characterised in that：The UV catalysis photodissociation devices (3) The photochemical catalyst used is nano titanium oxide.
4. 4. VOCs organic waste gas treatment equipments according to claim 1, it is characterised in that：The packing material of described filler layer For Raschig ring.
5. 5. VOCs organic waste gas treatment equipments according to claim 1, it is characterised in that：The inlet duct (1) is provided with Air inlet peephole, the UV catalysis photodissociation devices (3) are provided with humidity peep hole, and the active carbon purifying tower (4) is seen provided with activated carbon Hole is examined, the exhaust apparatus (6) is provided with discharge peephole.
6. 6. VOCs organic waste gas treatment equipments according to claim 1, it is characterised in that：Described washing spray column (2) bottom Portion is provided with sewage draining exit, and the sewage draining exit is connected with circulating water pool, and circulating water pool is connected with spray equipment.
7. 7. VOCs organic waste gas treatment equipments according to claim 6, it is characterised in that：The spray equipment and recirculated water Chemicals dosing plant is provided between pond, the shower nozzle of spray equipment is rotating sprinkler.