CN211328836U - Kitchen waste gas treatment device - Google Patents
Kitchen waste gas treatment device Download PDFInfo
- Publication number
- CN211328836U CN211328836U CN201921667987.7U CN201921667987U CN211328836U CN 211328836 U CN211328836 U CN 211328836U CN 201921667987 U CN201921667987 U CN 201921667987U CN 211328836 U CN211328836 U CN 211328836U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- spray
- layer
- water tank
- washing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a kitchen waste gas treatment device, which comprises a primary spray washing device, a secondary spray washing device, a first dehydration demisting device, a composite photocatalysis device, a deodorization washing device, a second dehydration demisting device, a peculiar smell control box and a chimney which are sequentially communicated through a pipeline, wherein a centrifugal fan for sucking waste gas is also arranged between the peculiar smell control box and the chimney, the waste gas of the kitchen waste is sequentially conveyed to the primary spray washing device, the secondary spray washing device, the first dehydration demisting device, the composite photocatalysis device, the deodorization washing device, the second dehydration demisting device and the peculiar smell control box under the action of the centrifugal fan for treatment, and the treated waste gas is finally discharged through the chimney, thereby improving the effect of waste gas purification, further reducing the pollution to the air, and the utility model has the advantages of large waste gas concentration and component load which can bear, high systematicness and strong practicability.
Description
Technical Field
The utility model relates to a waste gas treatment technical field especially relates to a surplus rubbish waste gas in kitchen administers device.
Background
In recent years, domestic advanced technologies are vigorously developed and actively introduced, the overall structure of the environmental protection industry is gradually improved, and particularly, the technology for treating waste gas and malodorous gas is more advanced and widely applied. At present, the odor treatment technologies applied at home and abroad mainly include a dry neutralization method, a composite photocatalysis method, an ion deodorization method, an absorption method, an adsorption method, a microbial degradation method, a composite active oxygen method, a micronutrient element decomposition method, a combustion method, a condensation method and the like.
The kitchen waste contains more organic matters such as: the leftover, vegetable root and leaf, skin, hair and fat of poultry, animal and fish contain certain water, fermentation odor can be generated due to poor ventilation and the action of microorganism in the stacking process, and the main component of the leftover is H2S and NH3In addition, organic gases such as methyl mercaptan, methylamine, methyl sulfide and the like are also available. When the oxygen amount is enough, organic components in the garbage, such as protein, generate NH under the action of aerobic bacteria3(ii) a When oxygen is insufficient, anaerobic bacteria decompose organic matters into incomplete oxidation products H2S and NH3、SO2Thiols, amines and the like. The gases have high volatility, are easy to diffuse in the atmosphere, have complex and variable pollution components, high pollution concentration, toxic part of the gases and large pungent smell, bring serious pollution to the surrounding air environment quality and cause great harm to the work, life, physical and psychological health of residents. In the face of the waste gas with complex components and high pollution concentration, the traditional single treatment technology or equipment obviously cannot solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to prior art not enough, the utility model aims to provide a surplus rubbish waste gas in kitchen administers device to solve the problem that proposes in the above-mentioned background art, it is big with the composition load to reach the waste gas concentration that can bear, systematic high and the stronger effect of practicality.
The purpose of the utility model is realized by adopting the following technical scheme:
a kitchen waste gas treatment device comprises a primary spraying and washing device which is sequentially communicated through a pipeline and used for removing dust, particles and water-soluble molecules in waste gas; a secondary spraying and washing device for removing hydrogen sulfide and acidic molecules contained in the waste gas; the first dehydration demisting device is used for reducing the humidity in the waste gas; a composite photocatalytic device for removing easily decomposed and oxidized components in the exhaust gas and removing the components containing VOCs; the deodorization washing device is used for removing water-soluble components in the waste gas and reducing the concentration of peculiar smell of the waste gas; the second dehydration demisting device is used for removing water vapor in the waste gas; a peculiar smell control box for removing the molecules with small molecular weight and volatile molecules; a chimney for discharging exhaust gas; and a centrifugal fan for sucking waste gas is further arranged between the peculiar smell control box and the chimney so that the extracted waste gas is discharged through the chimney.
Further, the one-level spraying and washing device comprises a first spraying tower and a first water tank, the first water tank is arranged at the bottom of the first spraying tower, a first air inlet used for waste gas to enter is formed in the lower portion of the first spraying tower, a first air outlet used for waste gas to go out is formed in the top of the first spraying tower, a first packing layer is arranged in the first spraying tower, a first spraying system communicated with the first water tank is arranged above the first packing layer, and a first circulating pump is arranged between the first spraying system and the first water tank so as to extract spraying liquid in the first water tank to be sprayed on the first packing layer through the first circulating pump.
Furthermore, the second-stage spraying and washing device is an alkali liquor washing device and comprises a second spraying tower and a second water tank, the second water tank is arranged at the bottom of the second spraying tower, a second air inlet is formed in the lower portion of the second spraying tower, a second air outlet is formed in the top of the second spraying tower, waste gas enters the second spraying tower from the position of the second air inlet through the first air outlet, a second packing layer is arranged in the first spraying tower, a second spraying system communicated with the second water tank is arranged above the second packing layer, and a second circulating pump is arranged between the second spraying system and the second water tank so as to extract alkali liquor in the second water tank through the second circulating pump and spray the alkali liquor on the second packing layer.
Further, the composite photocatalytic device comprises a shell, a polypropylene fiber filter screen layer, a carbon fiber screen layer, a titanium dioxide nickel screen layer and an ultraviolet lamp, wherein the polypropylene fiber filter screen layer, the carbon fiber screen layer, the titanium dioxide nickel screen layer and the ultraviolet lamp are arranged in the shell from top to bottom.
Further, the titanium dioxide nickel mesh layer comprises a foamed metal nickel loading layer and a titanium dioxide nano layer loaded on the foamed metal nickel loading layer.
Further, deodorization washing unit is including flowing washing pond, third packing layer, third circulating pump, shower head and liquid reserve tank, the third packing layer is located and is flowed in the washing pond, deodorant liquid is equipped with in the liquid reserve tank, just the liquid reserve tank passes through the pipeline intercommunication flow washing pond, the shower head is located the top of third packing layer and with the liquid reserve tank intercommunication, the third circulating pump is located the shower head with between the liquid reserve tank to deodorant liquid that is used for extracting in the liquid reserve tank passes through the shower head sprays on the third packing layer.
Further, the peculiar smell control box is provided with a deodorization dialysis membrane inside, one end of the peculiar smell control box is provided with an air inlet, and the other end of the peculiar smell control box is provided with an air outlet.
Furthermore, the air inlet and the air outlet are both provided with control valves.
Further, the deodorization dialysis membrane is a one-way dialysis membrane wrapped with odor removing liquid.
Further, the height of the chimney is more than or equal to 15 m.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model sequentially conveys the waste gas of each post in the kitchen waste disposal area to the primary washing device for removing dust, particulate matters and water solubility in the waste gas under the action of the centrifugal fan by the aid of the conveying air pipes; a secondary spraying and washing device for removing hydrogen sulfide and acidic molecules contained in the waste gas; the first dehydration demisting device is used for reducing the humidity in the waste gas; a composite photocatalytic device for removing easily decomposed and oxidized components in the exhaust gas and removing the components containing VOCs; the deodorization washing device is used for removing water-soluble components in the waste gas and reducing the concentration of peculiar smell of the waste gas; the second dehydration demisting device is used for removing water vapor in the waste gas; a peculiar smell control box for getting rid of the molecule weight and little and volatile molecule handles, and the waste gas after handling discharges through the chimney at last to improve exhaust-gas purification's effect, and then reduce the pollution to the air, just the utility model discloses the exhaust gas concentration and the composition load that can bear are big, and systematic height and practicality are stronger.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a primary spray washing device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a secondary spray washing device in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a composite photocatalytic device according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a deodorizing and washing device according to an embodiment of the present invention.
In the figure: 1. a primary spray washing device; 10. a first spray tower; 100. a first air inlet; 101. a first air outlet; 102. a first filler layer; 103. a first circulation pump; 104. a first water tank; 105. a first spray system; 2. a secondary spray washing device; 20. a second spray tower; 200. a second air inlet; 201. a second air outlet; 202. a second packing layer; 203. a second circulation pump; 204. a second water tank; 205. a second spray system; 3. a first dewatering and demisting device; 4. a composite photocatalytic device; 40. a housing; 400. a polypropylene fiber filter screen layer; 401. a carbon fiber mesh layer; 402. a titanium dioxide nickel mesh layer; 403. an ultraviolet lamp; 404. a third air inlet; 5. a deodorizing and washing device; 50. a flow washing tank; 500. a support plate; 5000. a third packing layer; 501. a shower head; 502. a third circulation pump; 503. a liquid storage tank; 6. a second dewatering and demisting device; 7. a peculiar smell control box; 70. an air inlet; 71. an air outlet; 710. a centrifugal fan; 8. and (4) a chimney.
Detailed Description
In the following, the present invention is described with priority in conjunction with the accompanying drawings and the detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The implementation mode is as follows:
referring to fig. 1, the utility model discloses a kitchen waste gas treatment device, which comprises a primary spraying and washing device 1 which is communicated in sequence through a pipeline and is used for removing dust, particulate matters and water-soluble molecules in waste gas, wherein the spraying and washing liquid of the primary spraying and washing device 1 is sodium hypochlorite spraying liquid; the secondary spraying and washing device 2 is used for removing hydrogen sulfide and acidic molecules contained in the waste gas, and the spraying and washing liquid of the secondary spraying and washing device 2 is a sodium hydroxide washing liquid; a first dehydration demisting device 3 for reducing the humidity in the exhaust gas; a composite photocatalytic device 4 for removing components that are easily decomposed and oxidized in the exhaust gas and removing components containing VOCs; a deodorizing and washing device 5 for removing water-soluble components in the exhaust gas and reducing the concentration of the odor of the exhaust gas; a second dehydration demisting device 6 for removing water vapor in the waste gas; a peculiar smell control box 7 for removing the molecules with small molecular weight and volatile molecules; a stack 8 for discharging exhaust gas; a centrifugal fan 710 for sucking the exhaust gas is further disposed between the odor control box and the chimney 8, so that the extracted exhaust gas is discharged through the chimney 8.
When the device is used, the waste gas at each post of the kitchen waste treatment area is conveyed to a primary washing device for removing dust, particles and water solubility in the waste gas under the action of the centrifugal fan 710 through the conveying air pipe; the waste gas treated by the sodium hypochlorite washing solution is sent to a secondary spraying and washing device 2 for removing hydrogen sulfide and acidic molecules in the waste gas; the waste gas washed by the different agents in the two stages is conveyed to a first dehydration demisting device 3 for reducing the humidity in the waste gas; the dehydrated waste gas is pumped to remove the easily decomposed and oxidized components in the waste gas and remove the composite photocatalytic device 4 containing the VOCs components; the waste gas treated by the composite photocatalysis device 4 is conveyed to a deodorization washing device 5 which is used for removing the components which are easy to dissolve in water in the waste gas and reducing the concentration of peculiar smell of the waste gas; the exhaust gas treated by the deodorization washing device 5 is conveyed to a second dehydration demisting device 6 for removing water vapor in the exhaust gas so as to be further dehydrated; and finally, conveying the waste gas into a peculiar smell control box 7 for removing molecules with small molecular weight and volatile molecules for treatment, thereby thoroughly removing odor, improving the effect of waste gas purification, further reducing the pollution to the air, and finally discharging the treated waste gas through a chimney 8. Just the utility model discloses the exhaust gas concentration and the composition load that can bear are big, and systematic nature is high and the practicality is stronger.
Specifically, referring to fig. 2, the primary spray washing device 1 includes a first spray tower 10 and a first water tank 104, the first water tank 104 is disposed at the bottom of the first spray tower 10, a first air inlet 100 for waste gas to enter is disposed at the lower portion of the first spray tower 10, a first air outlet 101 for waste gas to go out is disposed at the top of the first spray tower 10, a first packing layer 102 is disposed in the first spray tower 10, a first spray system 105 communicated with the first water tank 104 is disposed above the first packing layer 102, and a first circulating pump 103 is disposed between the first spray system 105 and the first water tank 104, so that spray liquid in the first water tank 104 is pumped on the first packing layer 102 by the first circulating pump 103.
That is, the waste gas of each post in kitchen garbage disposal area passes through the conveying tuber pipe under centrifugal fan's effect, in getting into first spray tower 10 from first air inlet 100, the sodium hypochlorite washing liquid that first circulating pump 103 extracted in first water tank 104 sprays on first packing layer 102, the waste gas that gets into in first spray tower 10 passes through first packing layer 102 and sodium hypochlorite washing liquid abundant contact reaction, sodium hypochlorite washing liquid and the foul smell molecule among the waste gas take place gas, liquid contact, make the foul smell composition in the gas phase shift to the liquid phase, and through the neutralization of chemical agent and foul smell composition, oxidation or other chemical reaction remove odorous substance. When high-concentration odor is treated, the concentration of the sodium hypochlorite solution (effective chlorine concentration) is about 500-2000 ppm; and when the odor with lower concentration is treated, the concentration of the sodium hypochlorite solution is about 50-500 ppm.
1) Sodium hypochlorite in solution in the form of hypochlorous acid (HClO): NaClO + H2O→HClO+NaOH，
2) At pH 7.5, the available chlorine of the hypochlorite solution is 50% HClO and hypochlorite ion (ClO)-) (ii) present;
3) at PH l0, only 0.3% available chlorine is present as HClO;
4) at PH l1 or 12, HClO is almost completely dissociated into useless hypochlorite ions;
H2the reaction equation of S with chemical media (NaOH, NaOCl) is as follows:
when the pH value is more than 7, NaClO +2NaOH + H2S→4NaCl+Na2SO4+2H2O
NaHS+NaClO→S+NaCl+NaOH
2CH3SNa+NaClO+H20＝CH3SSCH3+NaCl+2NaOH
At pH < 7, NaClO + H2S→Na2S4+H2O
And CH3SSCH3The solution is still a malodorous substance and is insoluble in water, and the solution must be acidified to change hypochlorite into neutral hypochlorous acid molecules, or heated to promote release of nascent chlorine [ Cl ]]Can the dimethyl disulfide be thoroughly oxidized into odorless substances; CH (CH)3SSCH3Adding HClO or nascent chlorine [ Cl ]]Is converted into CH3SO3H。
It should be noted that the first filler layer 102 is a gas-liquid mass transfer medium, and is mainly used to ensure that gas is in full contact with and fully reacts with the sodium hypochlorite cleaning solution, and the waste gas after the reaction with the sodium hypochlorite cleaning solution is conveyed to the secondary spraying and washing device 2 through the first gas outlet 101 under the action of the centrifugal fan.
Referring to fig. 3, further, the secondary spray washing device 2 is a lye washing device, which comprises a second spray tower 20 and a second water tank 204, the second water tank 204 is arranged at the bottom of the second spray tower 20, the lower part of the second spray tower 20 is provided with a second air inlet 200, a second gas outlet 201 is arranged at the top of the second spray tower 20, the waste gas enters the second spray tower 20 from the position of the second gas inlet 200 through the first gas outlet 101, a second filler layer 202 is arranged in the first spray tower 10, and a second spraying system 205 communicated with the second water tank 204 is arranged above the second filler layer 202, a second circulating pump 203 is arranged between the second spraying system 205 and the second water tank 204, so that the alkali liquor pumped by the second circulating pump 203 from the second water tank 204 is sprayed on the second filler layer 202.
That is, the waste gas treated by the primary spray washing device 1 comes out from the first air outlet 101 and enters the second spray tower 20 from the position of the second air inlet 200, the second circulation pump 203 pumps the sodium hydroxide cleaning solution in the second water tank 204 to spray on the second packing layer 202, the waste gas entering the second spray tower 20 passes through the second packing layer 202 to fully contact and react with the sodium hydroxide cleaning solution, the sodium hydroxide cleaning solution and odor molecules in the waste gas are in gas-liquid contact, so that the odor components in the gas phase are transferred to the liquid phase, and the odor substances are removed by neutralization, oxidation or other chemical reactions between chemical agents and the odor components. Hydrogen sulfide contained in the waste gas is weak acid and is ionized in water in a grading way, and hydrogen sulfuric acid is an aqueous solution of hydrogen sulfide gas, is a mixture and is volatile binary weak acid; ammonia is very soluble in aqueous solutions. The relevant reaction formula is as follows:
H2S+H2O＝HS-+H3O+
HS-+H2O＝S2-+H3O+
NH3+H2O＝NH3·H2O
the NaOH solution has a good treatment effect on hydrogen sulfide, and the reaction formula is as follows:
H2S+2NaOH＝Na2S+H2O(H2s quantity)
H2S+NaOH＝NaHS+H2O(H2S excess)
It should be noted that the second packing layer 202 is also a gas-liquid mass transfer medium, and is mainly used to ensure that the gas and the sodium hydroxide washing liquid are fully contacted and fully reacted, because the waste gas treated by the first-stage spray washing device 1 and the second-stage spray washing device 2 is in a gas-liquid mixed state, in order to avoid affecting the next treatment process, most of the water vapor in the gas needs to be removed by the high-efficiency dehydration and dehumidification layer treatment, therefore, the waste gas in the second spray tower 20 comes out from the second gas outlet 201 and enters the first dehydration and demisting device 3 through a pipeline, the first dehydration and demisting device 3 is preferably a demister, when the gas containing the mist flows through the demister at a certain speed, due to the inertial impact of the gas, the mist collides with the corrugated plate of the demister and the collected liquid drops are large enough to generate gravity thereof, when the resultant force of the rising force of the gas and the surface tension of, the liquid drops are separated from the surface of the corrugated plate, so that the dewatering effect is achieved, most of water in the waste gas is removed, and the humidity in the waste gas is reduced.
The waste gas treated by the first dewatering and demisting device 3 enters the composite photocatalytic device 4, and referring to fig. 4, preferably, the composite photocatalytic device 4 includes a housing 40, a polypropylene fiber filter screen layer 400, a carbon fiber screen layer 401, a titanium dioxide nickel screen layer 402 and an ultraviolet lamp 403, and the polypropylene fiber filter screen layer 400, the carbon fiber screen layer 401, the titanium dioxide nickel screen layer 402 and the ultraviolet lamp 403 are arranged in the housing 40 from top to bottom. Certainly, the bottom of the housing 40 is provided with a third air inlet 404, and the exhaust gas enters the housing 40 from the third air inlet 404, passes through the polypropylene fiber filter screen layer 400 first, and removes dust impurities in the exhaust gas; then, most of organic gases such as benzene, aldehyde ketone, alcohol, hydrocarbon and the like and malodorous substances are removed through the carbon fiber net layer 401; further, the titanium dioxide nickel mesh layer 402 includes a foam metal nickel loading layer and a titanium dioxide nano layer loaded on the foam metal nickel loading layer, the ultraviolet lamp 403 is turned on, and the ultraviolet light catalyzes and excites the nano-scale titanium dioxide to generate electron hole pairs, thereby degrading the organic pollutants.
That is, it can be understood that the ultraviolet lamp with a specific wavelength is used as a light energy donor for photocatalytic oxidation, and the photocatalyst nanoparticles can be excited to generate electron-hole pairs and a hole decomposition catalyst under irradiation of ultraviolet light with a specific wavelength. TiO 22The photocatalytic oxidation is active hydroxyl (OH) and other active oxidation species (O)2-，·OOH，H2O2) The result of the combined action. In TiO2The OH group generated on the surface has high reactivity and reaction energy higher than that of various chemical bond energies in organic matters, and is added with O2 -，·OOH，H2O2The synergistic effect of the active oxidation substances can be quickly and effectively separatedAnd (4) decomposing organic matters.
The rough reaction mechanism is:
H2S+O2、O2-、O2+→SO3+H2O
NH3+O2、O2-、O2+→NOx+H2O
VOCs+O2、O2-、O2+→SO3+CO2+H2O
the components which are easy to be decomposed and oxidized in the waste gas are removed through the reaction, and the components containing VOCs in the waste gas are removed, so that better disinfection and deodorization effects are achieved.
The exhaust gas treated by the composite photocatalytic device 4 enters the deodorizing and washing device 5 for treatment, and referring to fig. 5, preferably, the deodorization washing device 5 comprises a flow washing tank 50, a third packing layer 5000, a third circulating pump 502, a spray header 501 and a liquid storage tank 503, wherein the third packing layer 5000 is arranged in the flow washing tank 50, of course, the inside of the washing basin 50 is provided with a support plate 500 for installing and placing the third packing layer 5000, the liquid storage tank 503 is filled with deodorant liquid, the deodorizing liquid is New Bio-C deodorizing liquid, the liquid storage tank 503 is communicated with the flow washing tank 50 through a pipeline, the spray header 501 is arranged above the third filler layer 5000 and is communicated with the liquid storage tank 503, the third circulation pump 502 is disposed between the shower head 501 and the liquid storage tank 503, the deodorant liquid in the liquid storage tank 503 is sprayed on the third filler layer 5000 through the spray head 501.
Specifically, the waste gas enters the flow washing tank 50, the deodorizing liquid in the liquid storage tank 503 is pumped to the spray header 501 through the pipeline by the third circulating pump 502, the spray header 501 sprays the deodorizing liquid on the third packing layer 5000, in the flow washing tank 50, the gas is purified after passing through the third packing layer 5000 and enters the next waste gas treatment process, and the deodorizing liquid sprays the third packing layer 5000 and enters the liquid storage tank 503. The third packing layer 5000 is also a gas-liquid mass transfer medium, and is mainly used for ensuring full contact and full reaction of gas and deodorant liquid.
Because the New Bio-C deodorizing liquid contains deodorizing particles, the surfaces of the deodorizing particles can not only effectively adsorb peculiar smell molecules in the air, but also promote the change of the spatial configuration of the adsorbed peculiar smell molecules; in addition, the deodorizing particles can provide electrons for odor molecules to accelerate the reaction with the odor molecules; the surfaces of the deodorizing particles can also adsorb odor molecules in the air, and the three-dimensional structures in the odor molecules are changed and become unstable; meanwhile, odor molecules adsorbed on the surfaces of the deodorizing particles can also react with oxygen in the air. The relevant reactions are as follows:
acid-base reaction, for example, the deodorized particles contain trace alkaloid which can react with acidic odor molecules such as hydrogen sulfide. Unlike the common acid-base reaction, the common base is toxic, non-edible and non-biodegradable, and the high-purity plant extract can be biodegraded and is non-toxic.
Catalytic oxidation reactions, such as hydrogen sulfide and other acidic gases, typically react with oxygen in the air.
Taking the reaction of hydrogen sulfide as an example, the relevant reaction formula is as follows:
R-NH2+H2S→R-NH3++SH-
R-NH2+SH-+O2+H2O→R-NH3+SO4 2-+OH-
R-NH3++OH-→R-NH2+H2O
the oxidation-reduction reaction, such as formaldehyde, has oxidation property, and the effective molecules in the plant liquid have reduction property. They can be reacted directly. Reaction with formaldehyde and ammonia, the relevant reaction formula is as follows:
HR-NH2+HCHO→R-HN2+H-C＝CO2+H2O
R-NH2+NH3→R-NH2+N2+H2O
through the series of reactions, the components which are easy to dissolve in water in the waste gas are removed, and the odor concentration of the waste gas can be effectively reduced.
The waste gas after being treated by the deodorization washing device 5 enters a second dehydration demisting device 6 for removing water vapor in the waste gas, and the second dehydration demisting device 6 is also selected as a demister. The waste gas after being dehydrated by the second dehydrating and demisting device 6 enters the peculiar smell control box 7 for treatment, preferably, a deodorizing dialysis membrane is arranged in the peculiar smell control box 7, an air inlet 70 is arranged at one end of the peculiar smell control box 7, and an air outlet 71 is arranged at the other end of the peculiar smell control box. Waste gas gets into in the peculiar smell control box 7 from air intake 70 promptly, gets rid of the molecule of volatilizing in the waste gas through deodorization dialysis membrane, furtherly, deodorization dialysis membrane has the one-way dialysis membrane of stink removal liquid for the parcel, has the stink molecule in the one-way dialysis membrane seizure box body air of stink removal liquid through the parcel to live the stink molecule parcel, thereby reach the effect of thoroughly getting rid of the stink, waste gas after the processing passes through air outlet 71 and discharges. Furthermore, the air inlet 70 and the air outlet 71 are both provided with control valves (not shown), and the air volumes of the air inlet 70 and the air outlet 71 of the odor control box 7 are controlled by the control valves, so as to ensure the stability and reliability of the waste gas in the treatment process.
The waste gas treated by the above steps is extracted into a chimney 8 by a centrifugal fan for height-increasing discharge, preferably, the height of the chimney 8 is more than or equal to 15m, so as to ensure that the treated gas is discharged into the atmosphere. Preferably, the centrifugal fan is a medium-low pressure centrifugal fan, and certainly, the medium-low pressure centrifugal fan selects the air quantity which can be adjusted according to the requirement and can realize variable frequency adjustment, so that the energy conservation and the consumption reduction are realized.
In summary, the utility model introduces the waste gas generated by the kitchen garbage into the primary washing device to remove the dust, particulate matters and water-soluble substances in the waste gas; the waste gas treated by the primary washing device is sent to a secondary spraying and washing device 2 for treatment so as to remove substances containing hydrogen sulfide and acidic molecules in the waste gas; the waste gas treated by the secondary spraying and washing device 2 is sent to a first dehydration and demisting device 3 for dehydration treatment after the last two-stage treatment, so that the humidity in the waste gas is reduced; the waste gas dehydrated by the first dehydration demisting device 3 enters a composite photocatalysis device 4 to remove the easily decomposed and oxidized components in the waste gas and remove the components containing VOCs; the waste gas treated by the composite photocatalysis device 4 enters a deodorization washing device 5 to remove water-soluble components in the waste gas and reduce the concentration of peculiar smell in the waste gas; the waste gas treated by the deodorization washing device 5 enters a second dehydration demisting device 6 for further dehydration treatment to remove water vapor in the waste gas; waste gas after the dehydration treatment of the second dehydration and demisting device 6 enters the peculiar smell control box 7 to remove molecules with small molecular weight and easy volatility, so that the effect of removing odor is thoroughly achieved, and the waste gas after the treatment is far lower than the environmental emission standard.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A kitchen garbage waste gas treatment device is characterized by comprising a plurality of kitchen garbage waste gas treatment devices which are sequentially communicated through pipelines
The first-stage spraying and washing device is used for removing dust, particles and water-soluble molecules in the waste gas;
a secondary spraying and washing device for removing hydrogen sulfide and acidic molecules contained in the waste gas;
the first dehydration demisting device is used for reducing the humidity in the waste gas;
a composite photocatalytic device for removing easily decomposed and oxidized components in the exhaust gas and removing the components containing VOCs;
the deodorization washing device is used for removing water-soluble components in the waste gas and reducing the concentration of peculiar smell of the waste gas;
the second dehydration demisting device is used for removing water vapor in the waste gas;
a peculiar smell control box for removing the molecules with small molecular weight and volatile molecules;
a chimney for discharging exhaust gas;
and a centrifugal fan for sucking waste gas is further arranged between the peculiar smell control box and the chimney so that the extracted waste gas is discharged through the chimney.
2. The kitchen waste gas treatment device according to claim 1, wherein the primary spray washing device comprises a first spray tower and a first water tank, the first water tank is arranged at the bottom of the first spray tower, a first gas inlet for waste gas to enter is arranged at the lower part of the first spray tower, a first gas outlet for waste gas to exit is arranged at the top of the first spray tower, a first packing layer is arranged in the first spray tower, a first spray system communicated with the first water tank is arranged above the first packing layer, and a first circulating pump is arranged between the first spray system and the first water tank so as to pump spray liquid in the first water tank to spray on the first packing layer through the first circulating pump.
3. The kitchen waste gas treatment device according to claim 2, wherein the secondary spray washing device is an alkali washing device comprising a second spray tower and a second water tank, the second water tank is arranged at the bottom of the second spray tower, a second gas inlet is arranged at the lower part of the second spray tower, a second gas outlet is arranged at the top of the second spray tower, waste gas enters the second spray tower from the position of the second gas inlet through the first gas outlet, a second packing layer is arranged in the first spray tower, a second spray system communicated with the second water tank is arranged above the second packing layer, and a second circulating pump is arranged between the second spray system and the second water tank so as to pump alkali in the second water tank through the second circulating pump and spray the alkali on the second packing layer.
4. The kitchen waste gas treatment device as claimed in claim 1, wherein the composite photocatalytic device comprises a housing, a polypropylene fiber filter screen layer, a carbon fiber screen layer, a titanium dioxide nickel screen layer and an ultraviolet lamp, wherein the polypropylene fiber filter screen layer, the carbon fiber screen layer, the titanium dioxide nickel screen layer and the ultraviolet lamp are arranged in the housing from top to bottom.
5. The kitchen waste gas treatment device as claimed in claim 4, wherein the titanium dioxide nickel mesh layer comprises a foamed metal nickel loading layer and a titanium dioxide nano layer loaded on the foamed metal nickel loading layer.
6. The kitchen waste gas treatment device according to claim 1, wherein the deodorizing and washing device comprises a flow washing tank, a third packing layer, a third circulating pump, a spray header and a liquid storage tank, the third packing layer is arranged in the flow washing tank, deodorizing liquid is filled in the liquid storage tank, the liquid storage tank is communicated with the flow washing tank through a pipeline, the spray header is arranged above the third packing layer and is communicated with the liquid storage tank, and the third circulating pump is arranged between the spray header and the liquid storage tank and is used for pumping the deodorizing liquid in the liquid storage tank to be sprayed on the third packing layer through the spray header.
7. The kitchen waste gas treatment device according to claim 1, wherein a deodorizing dialysis membrane is disposed in the odor control box, and an air inlet is disposed at one end of the odor control box and an air outlet is disposed at the other end of the odor control box.
8. The kitchen waste gas treatment device as claimed in claim 7, wherein the air inlet and the air outlet are provided with control valves.
9. The kitchen waste gas treatment device according to claim 7, wherein the deodorizing dialysis membrane is a one-way dialysis membrane wrapped with a deodorizing solution.
10. The kitchen garbage waste gas treatment device as claimed in claim 1, wherein the height of the chimney is more than or equal to 15 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667987.7U CN211328836U (en) | 2019-09-30 | 2019-09-30 | Kitchen waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667987.7U CN211328836U (en) | 2019-09-30 | 2019-09-30 | Kitchen waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211328836U true CN211328836U (en) | 2020-08-25 |
Family
ID=72096877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921667987.7U Active CN211328836U (en) | 2019-09-30 | 2019-09-30 | Kitchen waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211328836U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169580A (en) * | 2020-09-25 | 2021-01-05 | 苏州寰宇新博环保设备工程有限公司 | Air odor removal method and air odor removal device |
| CN112620312A (en) * | 2020-12-21 | 2021-04-09 | 北京中科博联科技集团有限公司 | Bury good oxygen fermentation system of formula rubbish intelligence |
| CN112792088A (en) * | 2020-11-02 | 2021-05-14 | 深圳市朗坤环境集团股份有限公司 | Comprehensive utilization method of biomass in ecological environment park |
| CN112957894A (en) * | 2021-02-04 | 2021-06-15 | 深圳市科德环保科技有限公司 | High-efficient integration landfill leachate sewage station exhaust treatment device |
-
2019
- 2019-09-30 CN CN201921667987.7U patent/CN211328836U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169580A (en) * | 2020-09-25 | 2021-01-05 | 苏州寰宇新博环保设备工程有限公司 | Air odor removal method and air odor removal device |
| CN112792088A (en) * | 2020-11-02 | 2021-05-14 | 深圳市朗坤环境集团股份有限公司 | Comprehensive utilization method of biomass in ecological environment park |
| CN112792088B (en) * | 2020-11-02 | 2023-08-08 | 深圳市朗坤环境集团股份有限公司 | Comprehensive utilization method of biomass in ecological environment garden |
| CN112620312A (en) * | 2020-12-21 | 2021-04-09 | 北京中科博联科技集团有限公司 | Bury good oxygen fermentation system of formula rubbish intelligence |
| CN112957894A (en) * | 2021-02-04 | 2021-06-15 | 深圳市科德环保科技有限公司 | High-efficient integration landfill leachate sewage station exhaust treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211328836U (en) | Kitchen waste gas treatment device | |
| CN110772913A (en) | Waste gas treatment device | |
| CN206198982U (en) | The innoxious Odor control integrated system of livestock and poultry | |
| CN110711485A (en) | Waste gas purification device for sewage treatment station of sterile raw material medicine production line | |
| CN107715691A (en) | A kind of photocatalysis aqueous vapor treating column | |
| CN112973333A (en) | Kitchen waste and waste gas treatment combined device and process thereof | |
| CN208066104U (en) | A kind of chemical industry waste water station foul smell is collected and processing system | |
| CN211328712U (en) | Sesame oil squeezing workshop waste gas treatment device | |
| CN206730825U (en) | A kind of system for handling foul gas | |
| CN110772912A (en) | Purification equipment for comprehensive waste gas of biological pharmaceutical factory | |
| CN201558664U (en) | Apparatus for processing malodorous gas in pharmaceutical industry | |
| CN207913507U (en) | Box emission-control equipment | |
| CN209451632U (en) | A kind of pig house environmental protection grade deodorizing process system | |
| CN108295640A (en) | A kind of odor treatment method and equipment | |
| CN107174922A (en) | A kind of closed waste gas circulation processing system of air film | |
| CN110694466A (en) | Equipment for purifying waste gas generated after semi-synthetic antibiotic production sewage treatment | |
| CN211562472U (en) | A clarification plant for bio-pharmaceuticals sewage treatment station produces waste gas | |
| CN215233244U (en) | Waste gas treatment equipment for sewage treatment station of paper mill | |
| CN110252127A (en) | A kind of petrochemical industry exhaust treatment system | |
| CN108499355A (en) | Photoelectric catalysis degrading dimethylamine device and its waste gas processing method | |
| CN211328920U (en) | Equipment for purifying waste gas generated after semi-synthetic antibiotic production sewage treatment | |
| CN211384355U (en) | Stove waste gas purification device is fried in grease processing trade | |
| CN110711484A (en) | A clarification plant that is used for weaving printing factory sewage treatment back to discharge waste gas | |
| CN208553748U (en) | A kind of photoelectric catalysis degrading dimethylamine device | |
| CN211800029U (en) | Bridge beam supports paint spraying line exhaust gas purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510000 7th floor, building B1, Wanda Plaza, Luogang, 2707 Kaichuang Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Zike Equipment Co.,Ltd. Address before: 510000 7th floor, building B1, Wanda Plaza, Luogang, 2707 Kaichuang Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ZIKE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |