Summary of the invention
It is an object of the invention to design at a kind of catalysis material load ACF for industrial enterprise's exhaust collection and processing
The equipment for managing VOCs.Device structure of the invention is simple, adaptable, occupied area is small;Present device is simultaneously using ultraviolet
Photocatalysis oxidation technique, Co adulterate TiO2Catalysis technique and activated carbon adsorption effect processing VOCs, purification efficiency is high, operating cost
It is low, it is without secondary pollution.
To achieve the above object, the specific technical solution that the present invention uses is as follows:
A kind of equipment of catalysis material load ACF processing VOCs comprising photo catalysis reactor and induced draught system;
The photo catalysis reactor be it is horizontal, HEPA high efficiency particulate air is vertically arranged in photo catalysis reactor, cavity is divided into useless
Gas pretreatment chamber and photocatalyst catalytic reaction chamber;The front end of exhaust gas pretreatment chamber is provided with air inlet, and air inlet and HEPA are efficient
Several wind deflectors, wind deflector and horizontal airintake direction are uniformly arranged between filter screen in the angle between 0 ° ~ 75 °;Photocatalyst is urged
Change in reaction chamber and several groups partition is set along horizontal airintake direction interval, every group of partition is made of 4 pieces of horizontally disposed partitions, often
Reactor cavity is divided into Co-TiO from top to bottom by group partition2/ ACF photocatalyst is catalyzed reaction chamber and UV ultraviolet lamp area under control alternating
Five regions of arrangement, each Co-TiO2/ ACF photocatalyst, which is catalyzed in reaction chamber, is arranged several pieces of Co-TiO being vertically arranged2/
Several UV ultraviolet lamp pipes are arranged in each UV ultraviolet lamp area under control for ACF photocatalyst catalytic plate;Photocatalyst catalytic reaction chamber
Gas outlet is arranged in rear end;
The induced draught system includes the first air hose, the second air hose, blower and exhaust tube, and blower passes through the first air hose and outlet respectively
Mouth is connected, and passes through the second air hose and connects exhaust tube.
In the present invention, outward swinging door, outward swinging door quantity and Co-TiO is arranged in the front of photo catalysis reactor2/ ACF photocatalyst is urged
It is equal to change reaction chamber quantity, facilitates photo catalysis reactor internal partition, UV ultraviolet lamp pipe and Co-TiO2/ ACF photocatalyst catalytic plate
Assembly and replacement.
In the present invention, the material of HEPA high efficiency particulate air is compound PP PET filter paper.HEPA high efficiency particulate air is in exhaust gas
The efficiency that effectively removes of 0.1 micron to 0.3 micron of impurity can reach 99.7% or more.Partition is suprasil material, and quartz is right
Each wave band of ultraviolet light has very high transmitance, reaches 80%-90%.
In the present invention, detachable connection between partition and photo catalysis reactor;It can be by photo catalysis reactor
Card slot is set on wall, partition is embedded in card slot with stationary barrier, the assembly and replacement of partition are facilitated.
In the present invention, Co-TiO2/ ACF photocatalyst catalytic plate passes through the TiO that will load cobalt doped2The activated carbon of catalyst
Fibrofelt is embedded in aluminium alloy outer rim and obtains.Co-TiO2/ ACF photocatalyst catalytic plate size and number are catalyzed according to photocatalyst
Depending on reaction chamber size, Co-TiO2Using active carbon fiber felt as substrate, active carbon fiber felt in/ACF photocatalyst catalytic plate
Have many advantages, such as that large specific surface area, aperture are moderate, be evenly distributed, adsorption rate is fast and impurity is few, active carbon dynamic can be passed through and inhaled
The unstable exhaust gas of concentration is organized into the air-flow of equalization stable by desorption equilibrium, improves reaction rate;Using the TiO of cobalt doped2
Catalyst, TiO2Apparent red shift, Co-TiO has occurred in spectral absorption after cation doping2The visible light-responded wavelength of photochemical catalyst
It widens, TiO after doping Co2The photocatalytic activity of powder is improved, and improves traditional photochemical catalyst, increases operation rate.The two
In conjunction with effectively extension active particle can efficiently use active particle to the degradation time of organic matter, further increase purification effect
Rate.The active particle generated for remaining organic molecule and light-catalyzed reaction area provides catalytic active site, and the two is sufficiently reacted,
Guarantee the reaction efficiency of organic molecule, while reducing active particle escape, avoids secondary pollution.
In the present invention, the TiO of cobalt doped is loaded2In the active carbon fiber felt of catalyst, the TiO of cobalt doped2Catalyst is born
Carrying capacity is 1wt% ~ 3wt%.
In the present invention, the TiO of cobalt doped is loaded2The preparation method of the active carbon fiber felt of catalyst is specific as follows:
(1) TiO of cobalt doped2The preparation of catalyst
It is stirred butyl titanate, ethyl alcohol and acetic acid to obtain solution A;
It is stirred cobalt nitrate and ethyl alcohol to obtain solution B;
According to Co/TiO2Molar ratio be 0.08:1 ~ 0.12:1, solution B is poured into solution A, it is quiet at room temperature after magnetic agitation
It sets to sticky, obtains colloidal sol C;
(2) load of catalyst
It will be put into colloidal sol C by pretreated active carbon fiber felt, be taken using Best-Effort request, then by active carbon fiber felt
Out, baking oven is dried;
Active carbon fiber felt is in 495 ~ 505 DEG C of temperature lower calcination 50 ~ 70min to get to load cobalt doped after drying
TiO2The active carbon fiber felt of catalyst.
In the present invention, Co-TiO2Detachable connection between/ACF photocatalyst catalytic plate and partition.It can by every
Guide rail, Co-TiO is arranged in cavity wall above plate surface and photo catalysis reactor2It is arranged and leads on the outline border of/ACF photocatalyst catalytic plate
The sliding slot that rail matches, and then facilitate Co-TiO2The replacement of/ACF photocatalyst catalytic plate.
In the present invention, detachable connection between UV ultraviolet lamp pipe and partition.
In the present invention, guide plate is 2 ~ 6 pieces, and air-flow is divided into different channels by guide plate, avoids generating dead space, protect
Card air-flow is uniformly distributed;The group number of partition is 2 ~ 6 groups;Each Co-TiO2/ ACF photocatalyst be catalyzed setting in reaction chamber it is several 6 ~
12 pieces of Co-TiO being vertically arranged2/ ACF photocatalyst catalytic plate.
Compared to the prior art, the beneficial effects of the present invention are:
1. present device structure is simple and convenient to operate, is adaptable;It is used for VOCs processing, and photocatalysis efficiency is high, can grow
Phase stable operation.
2. the present invention can solve the exhaust gas concentration instability problem faced in Practical Project, inhaled by active carbon dynamic
The unstable exhaust gas of concentration is organized into equalization stable air-flow, improves reaction efficiency by desorption equilibrium.
3. the present invention adulterates TiO using Co2As photochemical catalyst, photocatalytic activity is high, increases operation rate.
4. the present invention is adaptable, it is suitable for different air quantity, various concentration and different foul gas processing, it is sustainable steady
Fixed work.
5. activated carbon adsorption in conjunction with UV photocatalysis, is saved material by the present invention, at low cost, clean-up effect is fabricated
Good, easy to maintain, operating cost is low.
6 Co-TiO of the invention2It is separately positioned that/ACF photocatalyst is catalyzed the horizontal airintake direction of reaction chamber, while longitudinal direction is divided
From setting, it can effectively extend active particle to the degradation time of organic matter, efficiently use active particle, guarantee exhaust gas and photocatalysis
Agent comes into full contact with, and further increases purification efficiency, for the active particle of remaining organic molecule and the generation of light-catalyzed reaction area
Catalytic activity is provided.
7. modular guidng rail formula assembling mode can be used in the present invention, different tolerance are coped with, reactor only needs adjustment module number
Mesh, it is convenient and efficient, it is easily installed, repairs and replaces, quick dispatch is suitble to large-scale industrial application.
8. it is useless to the composite can be widely applied to the discharges such as chemical company, pharmacy corporation, sewage treatment plant, garbage burning factory
The VOCs and H of gas2S、NH3, methyl mercaptan, the catalysis oxidation of the pollutant components such as gas with foreign flavor such as methyl sulfide, deep purifying.
Embodiment 1
As in Figure 2-4, the present invention provides the equipment of catalysis material load ACF processing VOCs a kind of, including light-catalyzed reaction
Device 1, blower 2, exhaust tube 3, air inlet 4, wind deflector 5, HEPA high efficiency particulate air 6, UV ultraviolet lamp pipe 7, Co-TiO2/ACF
Photocatalyst catalytic plate 8, gas outlet 9, air hose 10, photocatalyst catalytic reaction chamber 11, partition 12, outward swinging door 13 and air hose 14.Light is urged
The front end side for changing reactor 1 is provided with air inlet 4,5 He of wind deflector being sequentially connected in exhaust gas pretreatment chamber from left to right
HEPA high efficiency particulate air 6, enters photocatalyst catalytic reaction chamber 11 later, and photocatalyst catalytic reaction chamber 11 is interior along horizontal airintake direction
Interval setting several groups partition 12, partition 12 use suprasil material;Partition 12 passes through 11 inner wall of photocatalyst catalytic reaction chamber
The card slot of upper setting is while easy to disassemble with fixation.The group number of partition 12 is related to exhaust-gas treatment amount;The interval of partition group is arranged
It is beneficial to increase the residence time of exhaust gas in the reactor, improves treatment effect.Every group of partition 12 is by 4 pieces of horizontally disposed partitions
Cavity is divided into Co-TiO from top to bottom by 12 compositions, every group of partition 122/ ACF photocatalyst is catalyzed reaction chamber and UV ultraviolet lamp pipe
Five regions that area is arranged alternately, each Co-TiO2Several pieces of Co-TiO are vertically arranged in/ACF photocatalyst catalysis reaction chamber2/
ACF photocatalyst catalytic plate 8, Co-TiO2Sliding slot is set on the outline border of/ACF photocatalyst catalytic plate 8, sliding slot and 12 surface of partition and
The guide rail being arranged in the top cavity wall of photo catalysis reactor 11 matches, and facilitates Co-TiO2The assembly of/ACF photocatalyst catalytic plate
And replacement.Co-TiO2/ ACF photocatalyst catalytic plate 8 passes through the TiO that will load cobalt doped2The active carbon fiber felt of catalyst is embedded in
It is made in aluminium alloy outer rim.Wherein: loading the TiO of cobalt doped2The preparation method of the active carbon fiber felt of catalyst is specifically such as
Under:
(1) TiO of cobalt doped2The preparation of catalystIt is stirred butyl titanate, ethyl alcohol and acetic acid to obtain solution A;
It is stirred cobalt nitrate and ethyl alcohol to obtain solution B;According to Co/TiO2Molar ratio be 0. 1:1, solution B is poured into solution
A stands after magnetic agitation to sticky at room temperature, obtains colloidal sol C;(2) load of catalystPretreated activated carbon will be passed through
Fibrofelt is put into colloidal sol C, is taken out using Best-Effort request, then by active carbon fiber felt, baking oven drying;Activated carbon after drying
Fibrofelt 500 DEG C temperature lower calcination 60min to get to load cobalt doped TiO2The active carbon fiber felt of catalyst.
Several UV ultraviolet lamp pipes 7 are set in each UV ultraviolet lamp area under control, and lamp is placed on lamp tube ends, is disposed vertically
Between two partitions 12, detachable connection between UV ultraviolet lamp pipe 7 and partition 12.The ultraviolet light that UV ultraviolet lamp pipe 7 issues
By the partition of quartz material, light transmittance 80 ~ 90%, and then can direct irradiation in Co-TiO2/ ACF photocatalyst is catalyzed reaction chamber
In Co-TiO2The surface of/ACF photocatalyst catalytic plate, plays good photocatalysis effect.
Several outward swinging doors 13, outward swinging door quantity and Co-TiO is arranged in the front of photo catalysis reactor 12The catalysis of/ACF photocatalyst
Reaction chamber quantity is equal, and the setting of outward swinging door 13 facilitates partition, Co-TiO2/ ACF photocatalyst catalytic plate and UV ultraviolet lamp pipe
Assembly or disassembly.
The end of photo catalysis reactor 1 is provided with gas outlet 9, and gas outlet 9 is connected with blower 2, passes through air hose 10 and air hose
14, finally connect exhaust tube 3.
As shown in Figure 1, using a kind of above-mentioned equipment of catalysis material load ACF processing VOCs, the method for handling VOCs
The step of it is specific as follows:
Step 1: organic exhaust gas is entered into exhaust gas pretreatment chamber by air inlet, HEPA high efficiency particulate air in exhaust gas pretreatment chamber
6 effectively remove 0.1 micron to 0.3 micron dust and pollutant;
Step 2: the organic exhaust gas for filtering out fine particle touches catalytic reaction chamber 11 to light matchmaker, and ultraviolet radiator irradiates Co-TiO2/
ACF light matchmaker touches catalytic plate and generates the extremely strong hydroxyl radical free radical of catalysis oxidation and ultra-oxygen anion free radical, to organic exhaust gas and evil
Odour mass degradation, finally generates CO2、H2The innocuous substances such as O molecule;Finally, the deodorizing rate of exhaust gas meets up to 95% or more
National standard;
Step 3: making gas enter induced draught system by blower, and gas up to standard is discharged in atmosphere by exhaust tube.
In the present invention, the equipment of specific structure can guarantee that exhaust gas comes into full contact with photochemical catalyst, so that exhaust gas is irradiated in UV
Under sufficiently catalytic degradation.The Co/TiO that the present invention is used in conjunction with the present invention2The photocatalysis of the photochemical catalyst of=0.1 doping vario-property is made
With and activated carbon fibre suction-operated, can make remove VOCs efficiency be up to 95% or more.
To the embodiment of the present invention it should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can be combined with each other;It is obtained by those of ordinary skill in the art without making creative efforts it is all its
He applies example, shall fall within the protection scope of the present invention.