CN212309268U - Low-concentration large-air-volume odor treatment device - Google Patents

Low-concentration large-air-volume odor treatment device Download PDF

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CN212309268U
CN212309268U CN202020807728.6U CN202020807728U CN212309268U CN 212309268 U CN212309268 U CN 212309268U CN 202020807728 U CN202020807728 U CN 202020807728U CN 212309268 U CN212309268 U CN 212309268U
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desorption
carbon
odor
rotary drum
concentration
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黄樊
王寿高
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Shanghai Zhanheng Environmental Protection Technology Co.,Ltd.
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Shanghai Zhanheng Environmental Protection Engineering Co ltd
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Abstract

The utility model relates to a low-concentration large-air-volume odor treatment device, which comprises an odor pretreatment unit, a rotary drum concentration device for concentrating low-concentration odor, a catalytic incinerator for purifying concentrated odor and an odor post-treatment tower, wherein the outlet end of the odor pretreatment unit is connected with the inlet of the rotary drum concentration device; after the low concentration foul smell is through the preliminary treatment, then get into rotary drum enrichment facility's adsorption zone and adsorb, the rotary drum rotation rotates the adsorbed organic matter module in adsorption zone to the desorption district, comes out the organic matter desorption in the desorption district through high temperature gas, sends into catalytic combustion furnace again and handles, and the back foul smell after the catalytic combustion is mixed with rotary drum adsorption facility adsorption outlet waste gas and is handled the back through the chimney emission up to standard through foul smell aftertreatment tower. The utility model discloses low energy consumption, high efficiency, universality, practicality are good.

Description

Low-concentration large-air-volume odor treatment device
Technical Field
The utility model relates to an environmental protection equipment technical field, especially a low concentration big wind volume odor treatment device that low energy consumption, high efficiency, universality, practicality are good.
Background
The odor pollutant is a general name of all gas substances which stimulate olfactory organs to cause people to be unpleasant and harm living environment, and mainly comes from the processes of industrial production, sewage volatilization, sludge treatment, garbage disposal and the like. The odor pollutants are of various types, and can be generally divided into organic pollutants and inorganic pollutants, wherein the organic pollutants mainly comprise aromatic hydrocarbons, thiols, alkanes, thioethers, amines, indoles, amides, phenols, aldehydes, alcohols, ketones, acids, esters, halogenated hydrocarbons and the like, and the inorganic pollutants mainly comprise nitrogen compounds, sulfur compounds, halogens, compounds thereof and the like. In an odor generation scene, odor pollutants with low concentration and large wind volume are common forms, although the odor content in a generation environment is generally not high, the odor species have low olfactory threshold value and are harmful to human health, and when people move in the environment polluted by the substances for a long time, diseases of respiratory tract, digestive system, reproductive system and the like can be induced, and the people can die in serious cases.
At present, the main methods for treating odor comprise an incineration method, an adsorption method, an absorption method, a biological method, a high-grade oxidation method and the like. The incineration method is divided into catalytic incineration and direct incineration, which is the highest treatment efficiency of the prior art on odor, but because the odor in an application scene generally belongs to a working condition with low concentration and large air volume, the large-scale application of the odor is limited due to overhigh operation energy consumption; the adsorption method is mainly characterized in that odor molecules are adsorbed by adsorbing materials such as activated carbon, resin, zeolite and the like, but the adsorption method belongs to a temporary storage means and cannot directly destroy odor, so that the adsorption method is not used independently; the absorption method can effectively remove acid, alkali species and water-soluble organic matters of odor species through an absorbent, but has limited effect on removing organic odor species; the biological rule is that the aim of deodorization is achieved by utilizing the absorption and degradation effects of microorganisms on malodorous pollutants, and the application is influenced by the water solubility of odor species and the affinity of the microorganisms to the odor species; the advanced oxidation method mainly refers to strong oxidation technologies such as photocatalysis and plasma, utilizes high energy such as light and electricity to promote the oxidative decomposition of malodorous pollutants, has the advantages of low investment, low operation energy consumption and the like, is widely applied to low-concentration and high-air-volume odor treatment scenes, is generally used for solving the problems caused by the defects of secondary pollution of ozone and the like due to low treatment efficiency in practical application, and is not an ideal technology.
In the prior art, low-concentration and high-air-volume odor is mainly treated by strong oxidation technologies such as photocatalysis and plasma and combined technologies thereof, the technologies have the advantages of simple process equipment, low operation energy consumption and the like, but a large amount of application data show that the technologies have the obvious defect of low treatment efficiency (generally less than 30 percent). For example: the utility model with application number CN207722601U provides a combination technique for treating odor by taking photocatalysis as core technique, and the technique connects acid cleaning tower, alkaline washing tower, filter box, photocatalysis, modified active carbon, biological scrubbing tower in series to form a combination technique to treat odor, although the odor treatment efficiency is obviously improved, the treatment efficiency is usually less than 70% in practical application. The invention patent with application number of CN102688670A provides a technology for treating odor by combining a biological deodorization tower and plasma, wherein a biological washing tower and a plasma generator are connected in series to treat odor, the technology greatly improves the treatment efficiency of single biological deodorization and plasma technology to odor, but the treatment efficiency is generally less than 60 percent in application, and the requirement of environmental protection is difficult to achieve.
A low-concentration and large-air-volume odor treatment device with low energy consumption, high efficiency, universality and good practicability is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low concentration big amount of wind odor treatment device that low energy consumption, high efficiency, universality, practicality are good.
A low-concentration large-air-volume odor treatment device comprises:
the device comprises a pretreatment unit, an adsorption fan is connected with the pretreatment unit, the adsorption fan is connected with an adsorption inlet of a carbon-based rotary drum concentration device, an adsorption outlet of the carbon-based rotary drum concentration device is respectively connected with a high-temperature bypass valve and a chimney, a high-temperature desorption inlet and a desorption air outlet of the carbon-based rotary drum concentration device are connected in parallel with a desorption preheater and a desorption temperature regulating valve, the high-temperature desorption inlet of the carbon-based rotary drum concentration device is arranged above a desorption air outlet, the desorption outlet of the carbon-based rotary drum concentration device is connected with a preheating exchange inlet of a preheating heat exchanger through the desorption fan, the preheating exchange outlet of the preheating heat exchanger is sequentially connected with an electric heater, a catalytic incinerator and the high-temperature bypass valve, the preheating heat exchanger is connected with a desorption preheater, the desorption preheater is connected between the catalytic incinerator and the, the high-temperature desorption inlet of the carbon-based rotary drum concentration device is connected with the desorption heat exchange outlet of the desorption preheater, and the desorption air outlet of the carbon-based rotary drum concentration device is connected with the desorption heat exchange inlet of the desorption preheater.
One or more of a filter, a water washing tower and an oil washing tower is/are arranged in the pretreatment unit.
Pore structure carbon base adsorption material blocks with different apertures are arranged in the carbon base rotary drum concentration device.
The carbon-based adsorption material block in the carbon-based rotary drum concentrating device is a cuboid.
And odor aftertreatment towers are arranged between the high-temperature bypass valve and the chimney and between the chimney and the carbon-based rotary drum concentration device.
The odor post-treatment tower is one of a water washing tower, an oil washing tower and a biological tower.
The utility model discloses pretreatment unit connects the adsorption fan, the adsorption fan connects the absorption import of carbon base rotary drum enrichment facility, the absorption export of carbon base rotary drum enrichment facility connects high temperature bypass valve and chimney respectively, the high temperature desorption import of carbon base rotary drum enrichment facility, desorption wind export desorption preheater and desorption thermo valve are parallelly connected, the high temperature desorption import of carbon base rotary drum enrichment facility is above the desorption wind export, the desorption export of carbon base rotary drum enrichment facility is connected to the preheating inlet of preheating heat exchanger through desorption fan, the preheating outlet of preheating heat exchanger connects electrical heating in proper order, catalytic incinerator and high temperature bypass valve, preheating heat exchanger connects desorption preheater, desorption preheater is connected between catalytic incinerator and the high temperature bypass valve, desorption preheater is connected between the adsorption export of carbon base enrichment facility and the high temperature bypass valve, the high temperature desorption import of carbon base enrichment facility connects the desorption heat exchanger export of desorption preheater, the desorption air outlet of the carbon-based rotary drum concentration device is connected with the desorption heat exchange inlet of the desorption preheater. The utility model discloses low energy consumption, high efficiency, universality, practicality are good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a pretreatment unit, 2, an adsorption fan, 3, a carbon-based rotary drum concentration device, 4, a desorption fan, 5, a preheating heat exchanger, 6, electric heating, 7, a catalytic incinerator, 8, a desorption preheater, 9, a high-temperature bypass valve, 10, a desorption temperature regulating valve, 11, an odor aftertreatment tower, 12 and a chimney.
Detailed Description
The first embodiment is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments.
A low-concentration large-air-volume odor treatment device comprises: the device comprises a pretreatment unit 1, wherein the pretreatment unit 1 is connected with an adsorption fan 2, the adsorption fan 2 is connected with an adsorption inlet of a carbon-based rotary drum concentration device 3, an adsorption outlet of the carbon-based rotary drum concentration device 3 is respectively connected with a high-temperature bypass valve 9 and a chimney 12, a high-temperature desorption inlet of the carbon-based rotary drum concentration device 3, a desorption air outlet is connected with a desorption preheater 8 and a desorption temperature regulating valve 10 in parallel, a high-temperature desorption inlet of the carbon-based rotary drum concentration device 3 is arranged above a desorption air outlet, a desorption outlet of the carbon-based rotary drum concentration device 3 is connected with a preheating exchange inlet of a preheating heat exchanger 5 through a desorption fan 4, a preheating exchange outlet of the preheating heat exchanger 5 is sequentially connected with an electric heater 6, a catalytic incinerator 7 and the high-temperature bypass valve 9, the preheating heat exchanger 5 is connected with the desorption preheater 8, the desorption preheater 8 is connected, carbon back rotary drum enrichment facility 3's high temperature desorption access connection desorption preheater 8's desorption heat transfer export, carbon back rotary drum enrichment facility 3's desorption wind exit linkage desorption preheater 8's desorption heat transfer import.
One or more of a filter, a water washing tower and an oil washing tower are arranged in the pretreatment unit 1. Pore structure carbon base adsorption material blocks with different apertures are arranged in the carbon base rotary drum concentration device 3. The carbon-based adsorption material block in the carbon-based rotary drum concentrating device 3 is a cuboid.
The device comprises a carbon-based rotary drum concentration device 3 for concentrating low-concentration odor, a catalytic incinerator 7 for purifying the odor after concentration, wherein the output end of a pretreatment unit 1 is connected with the inlet of the carbon-based rotary drum concentration device 3, and the outlet of the carbon-based rotary drum concentration device 3 is connected with the catalytic incinerator 7; big amount of wind foul smell of low concentration is through pretreatment unit 1 back, reentrant carbon back rotary drum enrichment facility 3's adsorption zone adsorbs, and the rotary drum is rotatory to transfer the organic matter that the adsorption zone adsorbs to the desorption district, blows off the organic matter in the desorption district through high-temperature gas, sends into catalytic incinerator 7 again and handles, and the foul smell is handled the back and is discharged along with chimney 12, and wherein the adsorption zone material among the carbon back rotary drum enrichment facility is carbon back adsorption material.
When the device works, odor is connected to the air inlet of the pretreatment unit 1, the odor can remove particles, acid/alkali species or oily species through the pretreatment unit 1, then enters the carbon-based rotary drum concentration device 3 to be adsorbed by the carbon-based adsorption material in the adsorption area, and the adsorbed and purified clean gas is discharged along with the chimney 12; meanwhile, the carbon-based rotary drum concentration device 3 rotates at a certain speed (generally 1-8 revolutions per hour), when the carbon-based rotary drum concentration device rotates to a desorption area, the high-temperature purified tail gas at the outlet of the catalytic incinerator 7 is utilized to be heated and adsorbed, then the tail gas is cleaned, the adsorbed organic matters are blown out (the desorption temperature is generally 80-130 ℃), and the desorbed carbon-based rotary drum rotates to the adsorption area to adsorb organic odor again. The desorbed concentrated odor is heated by a preheating heat exchanger 5 and supplemented with heat by an electric heater 6, and then is sent to a catalytic incinerator 7 for catalytic oxidation treatment (the working temperature of the catalytic incinerator is generally 220-450 ℃), and the concentrated odor is converted into CO2 and H2O by catalytic oxidation and discharged along with a chimney, so that harmless emission is realized.
The outlet of the pretreatment unit 1 is connected with the inlet of the carbon-based rotary drum concentration device 3 through an adsorption fan 2; the adsorption fan 2 pumps the odor out of the pretreatment unit 1, the odor is sent to the carbon-based rotary drum concentration device 3 for adsorption, and the adsorbed odor is discharged along with a chimney 12.
A desorption heat exchanger 8, a high-temperature bypass valve 9 and a preheating heat exchanger 5 which are connected with the outlet of the catalytic incinerator 7; the tail gas purification from the 7 exports of catalytic incinerator is at first through desorption heat exchanger 8 heating desorption new trend and go 3 desorption district desorption foul smells of carbon base rotary drum enrichment facility, preheats the concentrated waste gas that comes off from 3 desorption district of carbon base rotary drum enrichment facility through preheating heat exchanger 5 again, and the tail gas purification through twice waste heat utilization is discharged along with chimney 12, and this process can greatly reduce the operation energy consumption.
A desorption fan 4 connected with a desorption outlet of the carbon-based rotary drum concentration device 3, an electric heater 6 connected with an outlet of the preheating heat exchanger 5 and an inlet of the catalytic incinerator 7, and a desorption temperature regulating valve 10 connected with a desorption heat exchanger 8 and a desorption inlet of the carbon-based rotary drum concentration device 3; the desorption fan 4 extracts the tail gas that partial carbon base rotary drum enrichment facility 3 adsorbs the purification and sends carbon base rotary drum enrichment facility 3 desorption district after the heating of desorption heat exchanger 8, and the concentrated foul smell that gets off through the desorption sends into catalytic incinerator 7 after 6 concurrent heating, and at this in-process, desorption temperature regulating valve 10 and electric heater 6 ware according to the desorption temperature and the catalytic incinerator 7 operating temperature automatically regulated its operating condition of system setting.
A certain foundry enterprise can produce a large amount of stink smoke in the processes of unpacking a product in a foundry and recycling and oscillating resin sand, wherein the stink smoke is 60000m3/h, the temperature is 60 ℃, the main components are resin particles, dimethylbenzene, methylbenzene, chlorobenzene, dichlorobenzene, dichloropropane and the like, and the stink TVOC is about 200mg/m 3. The odor is sent into the odor treatment system, the odor is pretreated (after being washed, cooled and filtered to remove particles), and then is concentrated by 20 times through a carbon-based rotary drum concentration device, the desorbed 3000m3/h and the TVOC concentration of 4000mg/m3 concentrated odor are sent to a catalytic incinerator for purification, and the purified tail gas is discharged along with a chimney after two times of waste heat recovery, wherein the catalyst is the chlorine-resistant catalyst with the preferable active component. In the odor treatment process, the odor is concentrated by 20 times, the air quantity is changed into the original air quantity of 1/20, the concentration is concentrated by 20 times, the system investment and the operation energy consumption are greatly reduced, the system treatment result shows that the odor mouth concentration is less than 8mg/m3, and the comprehensive purification efficiency of the system is more than 95%.
The air volume of the volatile odor of a sewage pool of a chemical enterprise is 50000m3/h, the temperature is room temperature, the main components are equal hydrogen sulfide, thioether, mercaptan, hexane, xylene and the like, and the odor TVOC is about 180mg/m 3. The odor is sent to the odor treatment system, after the odor is pretreated (after acid species are removed by alkali washing), the odor is concentrated by 25 times by a carbon-based rotary drum concentration device, the desorbed odor with the concentration of 2000m3/h and the TVOC concentration of 4500mg/m3 is sent to a catalytic incinerator for purification, and the purified tail gas is discharged along with a chimney after two times of waste heat recovery, wherein the catalyst in the case is the sulfur-resistant catalyst with the preferable active component. In the odor treatment process, the odor is concentrated by 25 times, the air volume is changed into the original air volume of 1/25, the concentration is concentrated by 25 times, the system investment and the operation energy consumption are greatly reduced, the system treatment result shows that the concentration of the odor port is less than 3mg/m3, and the comprehensive purification efficiency of the system is more than 97 percent.
Example two:
a low-concentration large-air-volume odor treatment device comprises: the device comprises a pretreatment unit 1, wherein the pretreatment unit 1 is connected with an adsorption fan 2, the adsorption fan 2 is connected with an adsorption inlet of a carbon-based rotary drum concentration device 3, an adsorption outlet of the carbon-based rotary drum concentration device 3 is respectively connected with a high-temperature bypass valve 9 and a chimney 12, a high-temperature desorption inlet of the carbon-based rotary drum concentration device 3, a desorption air outlet is connected with a desorption preheater 8 and a desorption temperature regulating valve 10 in parallel, a high-temperature desorption inlet of the carbon-based rotary drum concentration device 3 is arranged above a desorption air outlet, a desorption outlet of the carbon-based rotary drum concentration device 3 is connected with a preheating exchange inlet of a preheating heat exchanger 5 through a desorption fan 4, a preheating exchange outlet of the preheating heat exchanger 5 is sequentially connected with an electric heater 6, a catalytic incinerator 7 and the high-temperature bypass valve 9, the preheating heat exchanger 5 is connected with the desorption preheater 8, the desorption preheater 8 is connected, carbon back rotary drum enrichment facility 3's high temperature desorption access connection desorption preheater 8's desorption heat transfer export, carbon back rotary drum enrichment facility 3's desorption wind exit linkage desorption preheater 8's desorption heat transfer import.
One or more of a filter, a water washing tower and an oil washing tower are arranged in the pretreatment unit 1. Pore structure carbon base adsorption material blocks with different apertures are arranged in the carbon base rotary drum concentration device 3. The carbon-based adsorption material block in the carbon-based rotary drum concentrating device 3 is a cuboid.
An odor post-treatment tower 11 is arranged between the high-temperature bypass valve 9 and a chimney 12 and between the chimney 12 and the carbon-based rotary drum concentration device 3. The odor post-treatment tower 11 is one of a water washing tower, an oil washing tower and a biological tower.
The odor pretreatment unit 1 can be one or more of methods such as filtering, water washing, oil washing and the like, and a pretreatment mode is selected according to odor components so as to protect the rotary drum adsorption material.
The adsorption material filled in the carbon-based rotary drum concentration device 3 is a carbon-based adsorption material with a rich pore structure, the carbon-based adsorption material comprises but is not limited to one or more of coconut shell activated carbon, columnar activated carbon, honeycomb activated carbon and carbon fiber which are used together and modified materials thereof, and the typical desorption temperature is 80-130 ℃.
The active component of the catalyst used in the catalytic incinerator 7 can be one or more of Cr, Ni, Co, Cu, Mn, Pt and Pd, and the active component of the catalyst is selected according to the odor component to ensure the treatment efficiency and prevent the catalyst from being poisoned.
The odor post-treatment tower 11 can be any one of a water washing tower, an oil washing tower and a biological tower, and a pretreatment mode is selected according to odor components after catalytic incineration and purification so as to meet the requirement of dimensionless odor emission.
The odor passes through an adsorption fan 2 connected with the outlet of the pretreatment unit 1 and the inlet of the rotary drum concentration device 3; the adsorption fan pumps the odor out of the odor pretreatment unit 1, the odor is sent into the rotary drum concentration device 3 for adsorption, and the tail gas after adsorption is treated by the odor post-treatment tower 11 and then is discharged along with a chimney 12.
A desorption heat exchanger 8, a high-temperature bypass valve 9 and a preheating heat exchanger 5 which are connected with the outlet of the catalytic incinerator 7; the tail gas purification from 7 exports of catalytic incinerator is at first through desorption heat exchanger 8 heating desorption new trend and goes 3 desorption district desorption foul smells of rotary drum enrichment facility, preheats the concentrated waste gas that gets off from 3 desorption district desorption districts of rotary drum enrichment facility through preheating heat exchanger 5 again, and the tail gas purification through twice waste heat utilization is discharged along with chimney 12 after 11 purification of foul smell aftertreatment tower, and this process can greatly reduce the operation energy consumption.
A desorption fan 4 connected with a desorption outlet of the carbon-based rotary drum concentration device 3, an electric heater 6 connected with an outlet of the preheating heat exchanger 5 and an inlet of the catalytic incinerator 7, and a desorption temperature regulating valve 10 connected with a desorption inlet of the desorption heat exchanger 8 and the rotary drum concentration device 3; the desorption fan 4 extracts the tail gas that part rotary drum enrichment facility 3 adsorbs the purification and sends 3 desorption districts of rotary drum enrichment facility after the heating of desorption heat exchanger 8, and the concentrated foul smell that gets off through the desorption sends into catalytic incinerator 7 after 6 concurrent heating, and at this in-process, desorption temperature regulating valve 10 and electric heating 6 automatically regulated its operating condition according to the desorption temperature and the catalytic incinerator 7 operating temperature that the system set for.
The first of the two paths of the system airflow is that the waste gas enters a carbon-based rotary drum concentration device 3 to adsorb organic matters after particulate matters, acidic substances and oily substances are removed by a pretreatment unit 1, and most of the adsorbed purified gas is discharged from a chimney 12 after the dimensionless removal of the odor by an odor post-treatment tower 11; the second way is to extract a small part of gas adsorbed by the carbon-based rotary drum concentrating device 3, preheat the heat exchanger 5 and heat the high-temperature tail gas purified by the catalytic incinerator 7, desorb the adsorbed organic matter in the desorption area of the carbon-based rotary drum concentrating device 3, preheat the gas containing high-concentration organic matter again by the preheat heat exchanger 5 after desorption and reach the working temperature of catalytic incineration after electric heating 6 for heat compensation, enter the catalytic incinerator 7 for catalytic purification, mix the high-temperature tail gas purified by two times of waste heat utilization with the waste gas adsorbed by the carbon-based rotary drum concentrating device 3, and discharge the purified gas by the deodorization gas post-treatment tower 11 along with the chimney 12.
In the process, the high-temperature bypass valve 9 is opened for temperature relief when the temperature of the tail gas is too high after catalytic incineration, and is not opened generally; the desorption temperature regulating valve 10 is opened to ensure the system safety when the desorption air inlet temperature of the carbon-based rotary drum concentration device 3 is over-temperature.
The low-energy-consumption and high-efficiency treatment of low-concentration and high-air-quantity odor is realized, and the purposes are realized by optimizing a pretreatment mode, optimizing a rotary drum concentrated adsorption material, optimizing a catalytic incinerator catalyst and optimizing an odor aftertreatment mode.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A low concentration big amount of wind foul smell processing apparatus, its characterized in that includes:
the device comprises a pretreatment unit (1), wherein the pretreatment unit (1) is connected with an adsorption fan (2), the adsorption fan (2) is connected with an adsorption inlet of a carbon-based rotary drum concentration device (3), an adsorption outlet of the carbon-based rotary drum concentration device (3) is respectively connected with a high-temperature bypass valve (9) and a chimney (12), a high-temperature desorption inlet and a desorption air outlet of the carbon-based rotary drum concentration device (3) are connected with a desorption preheater (8) and a desorption temperature regulating valve (10) in parallel, the high-temperature desorption inlet of the carbon-based rotary drum concentration device (3) is arranged above the desorption air outlet, the desorption outlet of the carbon-based rotary drum concentration device (3) is connected with a preheating exchange inlet of a preheating heat exchanger (5) through a desorption fan (4), and the preheating exchange outlet of the preheating heat exchanger (5) is sequentially connected with an electric heater (6), a catalytic incinerator, preheating heat exchanger (5) connection desorption preheater (8), desorption preheater (8) are connected to between catalytic incinerator (7) and high temperature bypass valve (9), desorption preheater (8) are connected to between the absorption export and high temperature bypass valve (9) of carbon back drum enrichment facility (3), the desorption heat transfer export of the high temperature desorption access connection desorption preheater (8) of carbon back drum enrichment facility (3), the desorption heat transfer import of desorption preheater (8) is connected in the desorption wind exit linkage of carbon back drum enrichment facility (3).
2. The odor treatment device with low concentration and large air volume according to claim 1, characterized in that one or more of a filter, a water washing tower and an oil washing tower is/are arranged in the pretreatment unit (1).
3. A low concentration and large air volume odor treatment device according to claim 1, characterized in that the carbon-based rotary drum concentration device (3) is provided with carbon-based adsorbent material blocks with different pore sizes.
4. A low concentration and high air volume odor treatment device according to claim 3, characterized in that the carbon-based adsorbent material block in the carbon-based drum concentrating device (3) is a cuboid.
5. A low concentration large air flow odor treatment device according to claim 1, characterized in that an odor post-treatment tower (11) is provided between said high temperature bypass valve (9) and chimney (12), between chimney (12) and carbon-based drum concentrating device (3).
6. A low concentration and high air volume odor treatment device according to claim 5, wherein said odor post-treatment tower (11) is one of a water washing tower, an oil washing tower and a biological tower.
CN202020807728.6U 2020-05-15 2020-05-15 Low-concentration large-air-volume odor treatment device Active CN212309268U (en)

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Application Number Priority Date Filing Date Title
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