CN107376576A - A kind of waste gas purification apparatus for amino acid fermentation workshop - Google Patents

A kind of waste gas purification apparatus for amino acid fermentation workshop Download PDF

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Publication number
CN107376576A
CN107376576A CN201710740244.7A CN201710740244A CN107376576A CN 107376576 A CN107376576 A CN 107376576A CN 201710740244 A CN201710740244 A CN 201710740244A CN 107376576 A CN107376576 A CN 107376576A
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China
Prior art keywords
spray
waste gas
gas purification
purification apparatus
component
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CN201710740244.7A
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Chinese (zh)
Inventor
李明炳
查道军
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Wuhan Kun Long Environmental Protection Technology Co Ltd
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Wuhan Kun Long Environmental Protection Technology Co Ltd
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Priority to CN201710740244.7A priority Critical patent/CN107376576A/en
Publication of CN107376576A publication Critical patent/CN107376576A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D51/00Auxiliary pretreatment of gases or vapours to be cleaned
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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 by absorption
    • B01D53/18Absorbing units; Liquid distributors therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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 by absorption
    • B01D53/18Absorbing units; Liquid distributors therefor
    • B01D53/185Liquid distributors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/72Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8668Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of waste gas purification apparatus for amino acid fermentation workshop, including:Cooling body;Rotary spray tower, including inlet box, air outlet box and spray assemblies, spray assemblies include spray cylinder, rotation air inlet, packing layer and spray nozzle group, spray cylinder upper end is connected with air outlet box, lower end is extended in inlet box, air inlet and the tangent connection of spray cylinder are rotated, packing layer and spray nozzle are mounted in spray cylinder;Photochemical catalytic oxidation mechanism, including housing, screen pack, photooxidation component and photocatalysis component;Blower fan.The present invention sets cooling body to cool down waste gas to improve spray washing effect, and rotation air inlet and the tangent connection of spray cylinder, so that moved upwards in the shape of a spiral into the air-flow in spray cylinder, which promote gas and contacted with the water smoke progress different angle that spray nozzle sprays, it is advantageous to improve spray cleaning effect, organic matter purification is carried out using photochemical catalytic oxidation mechanism simultaneously, which obviates adsorbent replacing, ensure that continuation purifies.

Description

A kind of waste gas purification apparatus for amino acid fermentation workshop
Technical field
The present invention relates to exhaust gas treatment technology, is filled more particularly, to a kind of waste gas purification for amino acid fermentation workshop Put.
Background technology
In amino acids production workshop, especially in amino acid fermentation workshop, ammonia and volatile organic matter are easily formed, its is easy Foul gas is formed, the physically and mentally healthy of staff is not only influenceed and it is arbitrarily discharged and is easily caused air pollution.At present, it is most of Amino acid fermentation workshop carries out waste gas purification using the technology mode of " spray+charcoal absorption " more, due to being given up in fermentation plant Temperature degree is higher, and the spray adsorption effect of spray water mist is poor, and existing spray column spray washing efficiency is low, can not be disposable Whole pernicious gases are removed, it is necessary to which multiple circulated sprinkling, is easily caused energy consumption increase.Meanwhile needed using charcoal absorption frequent Property change activated carbon, waste time and energy.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of waste gas purification for amino acid fermentation workshop is proposed Device, waste gas spray process efficiency is low, energy consumption is big in amino acid fermentation workshop in the prior art and changes adsorption activity for solution The technical problem that charcoal is wasted time and energy.
To reach above-mentioned technical purpose, it is net that technical scheme provides a kind of waste gas for amino acid fermentation workshop Makeup is put, including:
Cooling body, it is used to be cooled down waste gas;
Rotary spray tower, it includes inlet box, air outlet box and at least two spray assemblies, on the inlet box and air outlet box Lower setting, and the outlet air end of inlet box and cooling body connects;Each spray assemblies include spray cylinder, rotation air intake Mouth, packing layer and spray nozzle group, the spray cylinder upper end is connected with the air outlet box, lower end is extended in inlet box, the rotation Rotate into inlet horizontal set and with the tangent connection in spray cylinder lower end, described filler layer at least two and from the bottom to top successively Be arranged in spray cylinder, the spray nozzle group is at least one and each spray nozzle group may be contained within two neighboring packing layer it Between;
Photochemical catalytic oxidation mechanism, it includes housing, screen pack, photooxidation component and photocatalysis component, the housing air intake End connects with the top of the air outlet box, and the screen pack, photooxidation component and photocatalysis component are built-in successively along airflow direction In the housing;And
Blower fan, its air intake connect with the outlet air end of the housing.
Compared with prior art, the present invention sets cooling body to cool down waste gas to improve spray washing effect, and rotates Air inlet and the tangent connection of spray cylinder so that moved upwards in the shape of a spiral into the air-flow in spray cylinder, which promote gas with The water smoke that spray nozzle sprays carries out different angle contact, and it is advantageous to improve spray cleaning effect, while uses photochemical catalytic oxidation Mechanism carries out organic matter purification, which obviates adsorbent replacing, ensure that continuation purifies.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the waste gas purification apparatus for amino acid fermentation workshop of the present invention;
Fig. 2 is the structural representation of the rotary spray tower of the present invention;
Fig. 3 is the attachment structure schematic diagram of the spray cylinder and rotation air inlet of the present invention;
Fig. 4 is the structural representation of the second packing layer of the present invention;
Fig. 5 is the connection diagram of the filling ball of the present invention;
Fig. 6 is the structural representation of the photochemical catalytic oxidation mechanism of the present invention;
Fig. 7 is Fig. 6 of present invention A-A direction views;
Fig. 8 is Fig. 6 of present invention B-B direction view;
Fig. 9 is the connection block diagram of the controller of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Fig. 1~9 are referred to, the invention provides a kind of waste gas purification apparatus for amino acid fermentation workshop, including it is dilute Release tank 5, cooling body 6, rotary spray tower 1, photochemical catalytic oxidation mechanism 2, blower fan 3 and aiutage 4.
As shown in figure 1, thinning tank 5 can be connected with exhaust pipe, it can be by the concentration dilution of waste gas, in order to follow-up Spray washing processing and photooxidation, Treatment by Photocatalysis Oxidation.Although the waste gas temperature by dilution is reduced, its temperature Degree is still higher, and the ammonia in high-temp waste gas is then unfavorable for absorption of the acid solution water smoke to it, and then is unfavorable for ammonia and acid solution Generation neutralization reaction, therefore the present embodiment is set and the waste gas after dilution is cooled with cooling body 6.
As shown in figure 1, cooling body 6 includes heat exchanger 61, cooling tower 62, header tank 63 and circulating cooling pump 64;Heat exchange Connected in device 61 formed with the first heat exchanging chamber and the second heat exchanging chamber, the outlet side of the first heat exchanging chamber with rotary spray tower 1, second changes Hot chamber, cooling tower 62, header tank 63 and circulating cooling pump 64 are in turn connected to form a closed circulation water route.During its specific effect, Cooling water in header tank 63 is pumped into the second heat exchanging chamber by circulating cooling pump 64, and it can occur with the waste gas in the first heat exchanging chamber To reduce the temperature of waste gas in the first heat exchanging chamber, the cooling water after heat exchange enters cooling tower 62 to reduce temperature and flow into for heat exchange It is stand-by in header tank 63, and the waste gas after cooling then enters in rotary spray tower 1.Wherein, heat exchanger 61 can use notification number for Tubular heat exchanger disclosed in the U of CN 204214315 patent of invention, multiple tubulations of the tubular heat exchanger are interior to form first Heat exchanging chamber, and the cavity between multiple tubulations is the second heat exchanging chamber.
As shown in Figure 1 and Figure 2, rotary spray tower 1 includes inlet box 11, air outlet box 12, circulated sprinkling pump 13, automatic liquid-feeding The spray assemblies 15 of component 14 and at least two, inlet box 11 and air outlet box 12 are setting up and down, and inlet box 11 and air outlet box 12 Can be disposed as it is generally rectangular shaped, and use thickness for 2mm 304 stainless steels prepare;Upper end forms air intake in inlet box 11 Chamber 111, lower end form collect cavity 112, and each spray assemblies 15 are vertically arranged and upper end connects with inlet box 11, lower end extension To air-inlet cavity 111.Wherein, air-inlet cavity 111 is connected with the first heat exchanging chamber, enters spray in order to enter the waste gas of air-inlet cavity 111 Leaching component 15 simultaneously carries out spray washing processing.The quantity of spray assemblies 15 can be arranged as required to, when the flow of pending waste gas When larger, multiple spray assemblies 15 can be correspondingly arranged, and when the flow of pending waste gas is smaller, then corresponding it can reduce spray The quantity of component 15.When setting multiple spray assemblies 15, multiple spray assemblies 15 can be arranged in arrays.
As shown in Fig. 2 each spray assemblies 15 include spray cylinder 151, rotation air inlet 152, packing layer 153 and Spray nozzle group 154, the upper end of spray cylinder 151 is connected with air outlet box 12, lower end is extended in inlet box 11, rotates the water of air inlet 152 It is flat to set and be simultaneously set in turn in spray cylinder from the bottom to top with the tangent connection in the lower end of spray cylinder 151, packing layer 153 at least two In 151, spray nozzle group 154 at least one and each spray nozzle group 154 may be contained between two neighboring packing layer 153.Such as Shown in Fig. 2, Fig. 3, spray cylinder 151 can be vertically arranged, and its lower end extends in air-inlet cavity 111 and tangent with rotation air inlet 152 Connection, it rotates air inlet 152 and may be configured as towards air intake cover, in order to enter the waste gas in air-inlet cavity 111 directly by rotating Air inlet 152 enters spray cylinder 151, and when specifically setting, the exhaust gas flow for generally entering air-inlet cavity 111 is slightly larger than multiple spray cylinders 151 flow and, it, which may be such that, forms negative pressure in air-inlet cavity 111, and then the waste gas for enter rotation air inlet 152 has one Fixed flow velocity, due to rotation air inlet 152 and 151 tangent setting of spray cylinder, it, which may be such that into the waste gas in spray cylinder 151, is in Helical form is moved upwards, and the water smoke that it may advantageously facilitate waste gas with spray nozzle sprays fully contacts, and then improves spray washing effect Rate.
Above-mentioned packing layer 153 includes the positioned at the first packing layer 153a of top layer and below the first packing layer 153a Two packing layer 153b, general first packing layer 153a are mainly used in the waste gas after spray washing carrying out demisting processing, and it can be adopted With existing conventional demisting filler.In practical application, the defogging effect for relying solely on the first packing layer 153a is poor, therefore this reality A spiral board 16 can be set in air outlet box 12 by applying example, and the water smoke that the first packing layer 153a is not removed can be carried out secondary remove by it Go.
As shown in Figure 2, Figure 4 shows, the present embodiment the second packing layer 153b is corresponded with spray nozzle group 154 and set, and each Spray nozzle group 154 may be contained within corresponding second packing layer 153b top, and it may advantageously facilitate fully connecing for waste gas and water smoke Touch.Wherein, the second packing layer of the present embodiment 153b includes the upper holder b1 and lower fixed frame for being fixed on the inwall of spray cylinder 151 B2, and the rotatable multiple filling ball b3 being arranged between upper holder b1 and lower fixed frame b2, when waste gas along spray cylinder 151 by Under it is supreme when moving in the shape of a spiral, waste gas stream can drive filling ball b3 to rotate so that the water droplet or water being attached on filling ball b3 Mist, which disperses, to come, and it can increase the probability that waste gas contacts with the water droplet and water smoke to disperse, promote acid solution in water smoke and water droplet with Ammonia reaction in waste gas, and then improve spray washing efficiency.
As shown in figure 5, the present embodiment filling ball b3 increases and is coaxially disposed same plane successively from the inside to the outside including internal diameter Multiple first retainer ring b31, be symmetricly set in two the second retainer ring b32 of the first retainer ring b31 upper and lower sides and along first Retainer ring b31 axis is in multiple ball clack b33 of radioactivity arrangement, and each equal one end end faces of ball clack b33 are connected to multiple first Retainer ring b31, the other end are connected to the second retainer ring b32.Each ball clack b33 is substantially in sector, and its two straight flanges are vertical State, the first retainer ring b31 typically may be configured as three, three the first retainer ring b31 be coaxially disposed and internal diameter by outside interior according to Secondary increase, a ball clack b33 straight flange are connected to three the first retainer ring b31, and its another straight flange is then connected to the second retainer ring B32 outer rim, the second retainer ring b32 internal diameter are generally slightly smaller than the internal diameter of the first minimum retainer ring b31 of internal diameter;Two second Retainer ring b32 is symmetrical arranged with respect to plane where the first retainer ring b31, positioned at the ball clack b33 of the first retainer ring b31 sides number Amount generally 12, each ball clack b33 being radially arranged along the second retainer ring b32, and 12 ball clack b33 are then along second The retainer ring b32 radial arrangement in axial direction, it increases ball clack b33, the first retainer ring b31 and the second retainer ring b32 and spray The contact probability of the water smoke of mouth injection, and then it is easy to the filling ball b3 of rotation to produce scattered water smoke or water droplet.
As shown in Figure 4, Figure 5, the second packing layer 153b also connects with upper holder b1 and lower fixed frame b2 respectively including both ends Be respectively provided with multiple annular groove groups on the multiple fixed column b4 connect, each fixed column b4, each annular groove group include being coaxially disposed in Two annular grooves on fixed column b4, each filling ball b3 two the second retainer ring b32, which coordinate, is rotatably sheathed on two rings In shape groove.It is several in order to maximize contact of the increase waste gas with water smoke because waste gas moves upwards in the shape of a spiral during practical function Rate, general fixed column b4 are obliquely installed, and the angle of fixed column b4 and horizontal plane is traditionally arranged to be 45 °, and its one side adds Filling ball b3 and water smoke contact probability, on the other hand it is easy to waste gas stream driving filling ball b3 rotations, and then promotes water smoke with giving up Gas is fully contacted to improve the speed of acid solution and ammonia neutralization reaction.
Reaction or unreacted water smoke are moved downward to form water droplet or current and flow into along rotation air inlet 152 and catchmented after spray In chamber 112, do not reacted due to more acid solution in the liquid in collect cavity 112 still be present with ammonia, therefore in order to improve acid solution Utilization rate, the present embodiment sets circulated sprinkling pump 13, and its water inlet end is connected with collect cavity 112, water side and spray nozzle group 154 Multiple spray nozzle 154a connections, it can drive unreacted complete acid cycle spray, and it is advantageous to the utilization for improving acid solution Rate.
As shown in Fig. 2, Fig. 9, in order to ensure the removal efficiency of ammonia in waste gas, it is necessary to ensure that the concentration of acid solution is not less than Setting value, that is, ensure that the pH value of acid solution is unlikely to too high, therefore the present embodiment sets an automatic liquid-feeding component 14, it includes liquid feeding bucket 141st, 141 control valve 143, one with the liquid-feeding tube 142 of inlet box 11, on liquid-feeding tube 142 of liquid feeding bucket is connected to be used to detect The control that the PH meters 144 and one of liquid pH value switch according to the pH value control control valve 143 of the detection of PH meters 144 in collect cavity 112 Device 145.Specifically, high concentration acid solution can be placed in liquid feeding bucket 141, as the PH of the acid solution in the collect cavity 112 in inlet box 11 When value is higher than maximum set value, then illustrating that acid concentration is relatively low in acid solution, it can be opened by the drive control valve 143 of controller 145, The acid solution of high concentration is flowed into inlet box 11 to improve the acid concentration of acid solution in collect cavity 112, when collect cavity 112 in inlet box 11 Acid strength when exceeding maximum set value, the drive control valve 143 of controller 145 is closed, it is achieved thereby that being automatically added to acid solution. Specifically, the present embodiment controller 145 includes the signal gathering unit of the electric signal caused by 144 detection pH values based on gathering PH 145a, for the electric signal whether be more than first threshold the first comparing unit 145b, for being when the electric signal No the first driver element 145c for driving when being more than first threshold the control valve 143 to open, for the electric signal it is It is no less than the second comparing unit 145d of Second Threshold, for driving the control valve when the electric signal is more than Second Threshold 143 the second driver element 145e closed;Wherein, first threshold is more than Second Threshold.
As shown in Fig. 1, Fig. 6, photochemical catalytic oxidation mechanism 2 includes housing 21, screen pack 22, photooxidation component 23 and photocatalysis Component 24, the air intake of housing 21 connect with the top of the air outlet box 12, screen pack 22, photooxidation component 23 and photocatalysis component 24 are built in housing 21 along airflow direction successively;It once can carry out filtration treatment, photooxidation processing and photocatalytic-oxidation to waste gas Change is handled.Wherein, screen pack 22 be mainly used in remove waste gas in solid granulates, avoid its be attached to photooxidation component 23 and/or On photocatalysis component 24, and cause the reduction of light irradiation efficiency.
As shown in Figure 6, Figure 7, photooxidation component 23 includes the multiple photooxidation devices set gradually along airflow direction, Mei Geguang Oxidator includes the first mounting bracket 231 and multiple first ultraviolet lamp tubes 232 on the first mounting bracket 231.First is ultraviolet Fluorescent tube 232 can be horizontally disposed with, and multiple first ultraviolet light can be uniformly arranged successively from the bottom to top.Wherein, the first ultraviolet lamp tube 232 The high energy ultraviolet that wavelength is 185nm can be sent, the oxygen molecule in waste gas can be decomposed and produce free oxygen by it, and free oxygen is then It can be combined with oxygen molecule and produce ozone, it is using ozone as oxidant, its ultraviolet lighting in the wavelength that wavelength is 185nm Penetrating down makes ozone decomposed produce elemental oxygen, and elemental oxygen and can continues have extremely strong oxidation with the water molecule reaction in gas, generation The hydroxyl radical free radical of ability, while organic molecule cracks under high energy ultraviolet effect and forms free state molecule, and free state Molecule can form carbon dioxide and water with hydroxyl radical reaction, and then the part volatile organic matter in waste gas is removed.
As shown in Fig. 6, Fig. 8, photocatalysis component 24 includes the multiple photocatalysis nets 241 being arranged alternately successively along airflow direction And photocatalyst 242, each photocatalyst 242 include the second mounting bracket 242a and on the second mounting bracket 242a Multiple second ultraviolet lamp tube 242b, it sends the ultraviolet beam irradiation light that wavelength is 254nm by the second ultraviolet lamp tube 242b Catalysis net 241 is to carry out photocatalytic oxidation.Specifically, photocatalysis net 241 includes honeycomb aluminum plate and is adsorbed in honeycomb aluminum plate On nano photo-catalytic, its can by wavelength be 254nm ultraviolet beam irradiate nano photo-catalytic produce electron hole pair, its It can produce hydroxyl radical free radical with oxygen and water molecule reaction, and then by the untreated organic molecule oxidation Decomposition shape of photooxidation component 23 Into carbon dioxide and hydrone.Wherein, the nano photo-catalytic of the present embodiment can use modifying titanium dioxide, specifically, nanometer light Catalyst includes titanium dioxide nanoparticle and is deposited on the layer of precious metal on the titanium dioxide nanoparticle surface, and noble metal is at least Including one kind in platinum, silver, palladium, niobium.During specific preparation, the one or more in platinum, silver, palladium, niobium can be chosen, after fusing fully Mix and be deposited on titanium dioxide nanoparticle.The modifying titanium dioxide of the present embodiment can be made by depositing noble metal Obtain extensively raw electronics and hole to efficiently separate, reduce e-And h+Recombination rate, while reduced the ultra-voltage of former reaction, it is significantly The activity of catalyst is improved, improves photocatalysis efficiency.
As can be seen from figures 6 to 8, in practical application, the solid particle in waste gas is easily adsorbed in the first ultraviolet lamp tube 232 and On two ultraviolet lamp tube 242b, so as to cause light efficiency to reduce, therefore need regular purple to the first ultraviolet lamp tube 232 and second Outer fluorescent tube 242b outer surface is cleaned.For the ease of cleaning, the present embodiment photooxidation component 23 and photocatalysis component 24 are equal It is to be detachably connected with the housing 21.Specifically, housing 21 may be configured as rectangular cylinder, the first mounting bracket 231 and the second installation Frame 242a is respectively provided with rectangular frame, and multiple first ultraviolet lamp tubes 232 are arranged in parallel in the first mounting bracket 231 successively from the bottom to top It is interior, and multiple second ultraviolet lamp tube 242b are then arranged in parallel in the second mounting bracket 242a successively from the bottom to top.The side of housing 21 Wall is provided with the multiple mounting holes being correspondingly arranged with the first mounting bracket 231 and the second mounting bracket 242a, and is provided with housing 21 Guide groove, specifically can be on the corresponding channel-section steel 25 of upper inside walls and downside the inwall setting of housing 21, channel-section steel 25 formed with above-mentioned Guide groove, the first mounting bracket 231 and the second mounting bracket 242a can one end through mounting hole and along the guide groove movement on channel-section steel 25 simultaneously Cooperation is inserted in housing 21.And for the ease of plugging, photooxidation component 23 includes one first installing plate 233, photocatalysis component 24 include the second installing plate 243, and the first installing plate 233 and the second installing plate 243 are vertically arranged, built in the first mounting bracket 231 Its one end is connected through mounting hole and with the first installing plate 233 when housing 21, and it can be pacified by the first installing plate 233 by first 231 are shelved by being pulled out in housing 21, corresponding second installing plate 243 can pull out the second mounting bracket 242a.During specific setting, often Corresponding first installing plates 233 of two the first mounting brackets 231, i.e. two 231 equal one end of the first mounting bracket are connected to one the On one installing plate 233, and then one end is connected on second installing plate 243 two the second mounting bracket 242a.
For the ease of the detachable of photocatalysis component 24, photocatalysis net 241 is corresponded with photocatalyst 242 and set, and Each photocatalysis net 241 is fixedly arranged on the second mounting bracket 242a with respect to the side of photooxidation component 23, and it may be such that the second mounting bracket 242a can be by the second ultraviolet lamp tube 242b and the synchronous pull-out of photocatalysis net 241 when pulling out.Wherein, in order to ensure the second ultraviolet lamp tube 242b and photocatalysis net 241 photocatalysis efficiency, the distance between the second ultraviolet lamp tube 242b and photocatalysis net 241 are 200mm, The distance between two neighbouring second ultraviolet lamp tube 242b are 100~150mm.Meanwhile the present embodiment can be urged by light Change the time of the quantity control waste gas photochemical catalytic oxidation of device 242, general waste gas is 1.5 seconds in the time of photochemical catalytic oxidation, therefore is had Body can set the quantity of photocatalyst 242 according to the speed of air-flow when setting, also can control its light of the speed control of waste gas flowing The catalysis oxidation time.
When after the processing of photochemical catalytic oxidation mechanism 2, clean gas can be formed, it can will be clean after processing by blower fan 3 Net gas is pumped into aiutage 4, and is directly thrown into air.
During the waste gas purification apparatus work for amino acid fermentation workshop of the present embodiment, it first will by thinning tank 5 Waste gas is diluted, after dilution by cooling body 6 reduce waste gas temperature, then by rotary spray tower 1 spray acid solution with The ammonia in waste gas is removed, photooxidation processing and Treatment by Photocatalysis Oxidation are carried out successively finally by photochemical catalytic oxidation mechanism 2, its A variety of volatile organic matter oxidation processes can be formed to the carbon dioxide and vapor that can be discharged successively, and be pumped into by blower fan 3 Aiutage 4 is thrown into air.
The embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis The various other corresponding changes and deformation that the technical concept of the present invention is made, should be included in the guarantor of the claims in the present invention In the range of shield.

Claims (10)

  1. A kind of 1. waste gas purification apparatus for amino acid fermentation workshop, it is characterised in that including:
    Cooling body, it is used to be cooled down waste gas;
    Rotary spray tower, it includes inlet box, air outlet box and at least two spray assemblies, divided into the inlet box and air outlet box Put, and the outlet air end of inlet box and cooling body connects;Each spray assemblies include spray cylinder, rotation air inlet, filled out The bed of material and spray nozzle group, the spray cylinder upper end is connected with the air outlet box, lower end is extended in inlet box, the rotation air intake Mouth is horizontally disposed and is simultaneously set in turn in from the bottom to top with the tangent connection in spray cylinder lower end, described filler layer at least two In spray cylinder, the spray nozzle group is at least one and each spray nozzle group may be contained between two neighboring packing layer;
    Photochemical catalytic oxidation mechanism, it includes housing, screen pack, photooxidation component and photocatalysis component, the housing air intake with The top connection of the air outlet box, the screen pack, photooxidation component and photocatalysis component are built in institute along airflow direction successively State housing;And
    Blower fan, its air intake connect with the outlet air end of the housing.
  2. 2. waste gas purification apparatus according to claim 1, it is characterised in that the cooling body includes heat exchanger, cooling Tower, header tank and circulating cooling pump;Formed with the first heat exchanging chamber and the second heat exchanging chamber, first heat exchanging chamber in the heat exchanger Outlet side connected with inlet box, second heat exchanging chamber, cooling tower, header tank and circulating cooling pump are in turn connected to form one and closed Close circulation waterway.
  3. 3. waste gas purification apparatus according to claim 2, it is characterised in that the waste gas purification apparatus is also used for including one The thinning tank of exhaust gas concentration is diluted, the outlet side of the thinning tank connects with the inlet end of first heat exchanging chamber.
  4. 4. the waste gas purification apparatus according to Claims 2 or 3, it is characterised in that the rotary spray tower also follows including one Ring spray pump, its water inlet end are connected with collect cavity connection, water side and the spray nozzle on the downside of inlet box.
  5. 5. waste gas purification apparatus according to claim 4, it is characterised in that the rotary spray tower also includes one and added automatically Liquid component, it includes a liquid feeding bucket, liquid-feeding tube of the connection liquid feeding bucket with the inlet box, the control on the liquid-feeding tube The pH value control control threshold switch that valve processed, one count according to PH detection by the PH meters and one for detecting the intracavity liquid pH value that catchments Controller;The controller include by gathering PH based on detection pH value caused by electric signal signal gathering unit, for than Whether the electric signal is more than the first comparing unit of first threshold, for when whether the electric signal is more than first threshold The first driver element that the control valve opens is driven, whether is less than the second of Second Threshold for the electric signal and compares Unit, the second driver element for driving the control valve to close when the electric signal is more than Second Threshold;Wherein, first Threshold value is more than Second Threshold.
  6. 6. waste gas purification apparatus according to claim 1, it is characterised in that the photooxidation component is included along airflow direction The multiple photooxidation devices set gradually, each photooxidation device include the first mounting bracket and more on first mounting bracket Individual first ultraviolet lamp tube;The photocatalysis component includes multiple photocatalysis nets and the photocatalysis being arranged alternately successively along airflow direction Device, each photocatalyst include the second mounting bracket and multiple second ultraviolet lamp tubes on second mounting bracket.
  7. 7. waste gas purification apparatus according to claim 6, it is characterised in that in the inner walls formed with first peace Shelve the multiple guide grooves for corresponding and setting with the second mounting bracket, and the housing sidewall is formed with multiple mounting holes, described the One mounting bracket and the second mounting bracket can pass through the mounting hole and be inserted in along the guide groove movement with coordinating in the housing.
  8. 8. waste gas purification apparatus according to claim 7, it is characterised in that the photocatalysis net and the photocatalyst one One is correspondingly arranged, and each photocatalysis net is fixedly arranged on the second mounting bracket with respect to photooxidation component side;The photocatalysis net bag Include honeycomb aluminum plate and the nano photo-catalytic being adsorbed on honeycomb aluminum plate;The nano photo-catalytic include titanium dioxide nanoparticle and The layer of precious metal on the titanium dioxide nanoparticle surface is deposited on, the noble metal comprises at least one in platinum, silver, palladium, niobium Kind.
  9. 9. waste gas purification apparatus according to claim 1, it is characterised in that described filler layer includes first positioned at top layer Packing layer and the second packing layer below the first packing layer, second packing layer include being fixed on the upper of spray cylinder inwall Fixed mount and lower fixed frame, and the rotatable multiple filling balls being arranged between upper holder and lower fixed frame.
  10. 10. waste gas purification apparatus according to claim 9, it is characterised in that the filling ball includes internal diameter from the inside to the outside Increase and be coaxially disposed conplane multiple first retainer rings, be symmetricly set in two of the first retainer ring upper and lower sides successively Two retainer rings and multiple ball clacks along the first retainer ring axis in radioactivity arrangement, each equal one end end face of ball clack is connected to more Individual first retainer ring, the other end are connected to the second retainer ring;Second packing layer also include both ends respectively with upper holder and Multiple fixed columns of lower fixed frame connection, multiple annular groove groups are respectively provided with each fixed column, and each annular groove group includes coaxial Two annular grooves being arranged in fixed column, two the second retainer rings of each filling ball, which coordinate, is rotatably sheathed on two annulars In groove.
CN201710740244.7A 2017-08-25 2017-08-25 A kind of waste gas purification apparatus for amino acid fermentation workshop Pending CN107376576A (en)

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