CN110898555A - Waste gas treatment device - Google Patents
Waste gas treatment device Download PDFInfo
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- CN110898555A CN110898555A CN201911230897.6A CN201911230897A CN110898555A CN 110898555 A CN110898555 A CN 110898555A CN 201911230897 A CN201911230897 A CN 201911230897A CN 110898555 A CN110898555 A CN 110898555A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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 adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation 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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a waste gas treatment device, which comprises a pretreatment section, an adsorption concentration section and a desorption purification section which are sequentially communicated in a butt joint manner; the pretreatment section is in butt joint with an inlet of a device connected with the waste gas collecting system and internally comprises a plurality of stages of filtering modules; the adsorption concentration section comprises a concentration rotating wheel for adsorbing and purifying waste gas, the outlet of the pretreatment section is in butt joint with the adsorption area of the concentration rotating wheel, the outlet end of the concentration rotating wheel is in butt joint with a system fan, and the purified waste gas is discharged through an exhaust funnel connected with the system fan. The invention integrates pretreatment, waste gas adsorption concentration and desorption purification, has compact structure, small occupied area, high purification efficiency, low energy consumption and low operation cost, can be widely applied to the purification of waste gas with medium and small air quantity, low concentration and concentration fluctuation, is convenient and quick for equipment maintenance and has wide application value.
Description
Technical Field
The invention belongs to the field of industrial waste gas purification, and particularly relates to a waste gas treatment device.
Background
With the rapid development of economy, the discharge amount of industrial waste gas is huge, and industrial waste gas emission is generated in various discharge industries such as coating, petrochemical industry, packaging and printing, furniture manufacturing and the like. The industrial waste gas has various types, complex components and different properties, and the waste gas emission characteristics of different industries are different, particularly the phenomenon that paint mist particles and organic waste gas coexist commonly exists in the coating industry. Common air pollution treatment technologies are divided into two major categories, namely a recovery method and a destruction method. The recovery method mainly aims at waste gas components with recycling value, and waste gas without recycling value is usually destroyed by adopting a destroying method to directly destroy and remove the waste gas. Common recovery methods include: adsorption, absorption, condensation, and membrane separation. Common destruction methods include: adsorption, direct combustion, catalytic combustion, regenerative thermal oxidation, regenerative catalytic oxidation, and the like. The adsorption method is characterized in that the adsorption material is adopted to adsorb and purify the waste gas, the adsorption material needs to be replaced after being saturated, the replaced adsorption material is dangerous waste and must be disposed by qualified units, so that the operation and maintenance cost of the technology is high, or a desorption system is configured for the adsorption equipment, and the adsorption material which is saturated in adsorption is subjected to desorption regeneration, so that the initial investment cost of the equipment is high. The regenerative (catalytic) oxidation method is suitable for the working condition of continuous exhaust gas emission, and the initial investment and the operation and maintenance cost are higher.
Aiming at the problems of large equipment investment, high operation cost, low removal efficiency and the like existing when the existing various technologies respectively treat industrial waste gas pollution containing particle pollutants with low concentration and large air volume, a rotating wheel concentration and catalytic combustion combined purification industrial waste gas combined treatment process is provided, but the existing combined purification system has the defects of large occupied area, insufficient waste heat, limited application range, low pretreatment efficiency and influence on the effect of subsequent waste gas treatment.
Disclosure of Invention
The technical problem solved by the invention is as follows: the novel waste gas treatment device utilizing the rotary wheel to concentrate, adsorb and desorb is provided, aiming at the problems of low equipment efficiency, large occupied area and insufficient waste heat in the prior rotary wheel concentration technology for treating industrial waste gas.
The invention is realized by adopting the following technical scheme:
the waste gas treatment device comprises a pretreatment section, an adsorption concentration section and a desorption purification section which are sequentially communicated in a butt joint manner;
the pretreatment section is in butt joint with an inlet of a device connected with the waste gas collecting system, and internally comprises a plurality of stages of filtering modules for filtering particulate matters in the waste gas;
the adsorption and concentration section comprises a concentration rotating wheel for adsorbing and purifying waste gas, an outlet of the pretreatment section is in butt joint with an adsorption area of the concentration rotating wheel, an outlet end of the concentration rotating wheel is in butt joint with a system fan, and the purified waste gas is discharged through an exhaust funnel connected with the system fan;
the desorption purification section comprises a heat exchanger, a desorption fan and a catalytic combustion unit;
the outlet of the pretreatment section is also in butt joint with a cooling area of the concentrated rotating wheel, a cooling area switching valve is arranged between the cooling area and the outlet of the pretreatment section, the outlet end of the cooling area is connected to a heat exchanger of the desorption purification section, then the concentrated rotating wheel is desorbed by a desorption area which is connected to the concentrated rotating wheel in a backflow mode, desorbed waste gas is connected to a desorption fan and is conveyed to the catalytic combustion unit through the desorption fan, the outlet of the catalytic combustion unit is directly connected to the exhaust funnel, and the outlet of the catalytic combustion unit is connected to the exhaust funnel through a heat exchange medium channel of the heat exchanger.
Further, the filtration modules include at least two of a wire mesh filtration module, a DPA filtration module, a plate fine demister module, a plate activated carbon purification module, a class F5 filtration module, a class F6 filtration module, a class F9 filtration module, a class H10 filtration module, and a cartridge filtration module.
Furthermore, the catalytic combustion unit comprises a heat exchange region, a heating region and a catalytic combustion region, the heat exchange region comprises a heat exchange region heating channel and a heat exchange region cooling channel which are respectively connected with the catalytic combustion inlet and the catalytic combustion outlet, the heating region and the catalytic combustion region are communicated with each other, the heat exchange region heating channel is independently communicated with the heating region, and the heat exchange region cooling channel is independently communicated with the catalytic combustion region.
Furthermore, a heat exchange area in the catalytic combustion unit is positioned at the bottom, the heating area is positioned at two sides above the heat exchange area, and the catalytic combustion area is positioned in the middle of the heating area;
the heat exchange area is internally provided with a parallel plate type heat exchange structure, and the internal heat exchange area warming channel and the heat exchange area cooling channel are alternately staggered, wherein the bottom of the heat exchange area warming channel is communicated with the catalytic combustion inlet, the top of the heat exchange area warming channel is uniformly connected to the heat exchange area waste gas warming outlet at the bottom of the heating area in a gathering mode, the bottom of the heat exchange area cooling channel is communicated with the catalytic combustion outlet, and the top of the heat exchange area cooling channel is uniformly connected to the heat exchange area tail gas cooling inlet at the bottom of the catalytic combustion area in a.
Furthermore, the outer wall of the catalytic combustion unit is provided with a heat insulation layer.
Furthermore, the top of the catalytic combustion area of the catalytic combustion unit is provided with an explosion venting port.
In the waste gas treatment device, a first temperature sensor is further arranged in the pretreatment section, a first fresh air inlet and a first fresh air valve are arranged on a box body of the pretreatment section, and the first temperature sensor is connected with the first fresh air valve in a feedback control mode.
Furthermore, a second temperature sensor is further arranged between the desorption area of the concentration rotating wheel and the heat exchanger, a second fresh air inlet and a second fresh air valve which are in butt joint with the cooling area of the concentration rotating wheel are arranged on the box body of the adsorption concentration section, and the second temperature sensor is connected with the second fresh air valve in a feedback control mode.
Further, still be equipped with the concentration sensor who detects desorption gas concentration between the desorption district of concentrated runner and the desorption fan, be equipped with third new trend entry and the third new trend valve that dock to the desorption fan on the box of desorption purification section, concentration sensor and third new trend valve feedback control are connected.
Furthermore, a third temperature sensor is arranged at an outlet of the catalytic combustion unit, the outlet of the catalytic combustion unit is connected with the heat exchanger through a proportional control valve, and the third temperature sensor is connected with the proportional control valve in a feedback control mode.
The invention has the following beneficial effects:
1) high-efficiency pretreatment, namely, high-precision multi-stage filtration modules are adopted to filter waste gas with high and medium precision, so that the concentration of the particulate matter dust entering the adsorption concentration section is less than or equal to 1mg/m3。
2) The invention has the advantages of small occupied area, compact structure and small occupied area because the pretreatment section box body, the waste gas concentration and purification section box body and the waste gas desorption and purification section box body are integrally designed and the pretreatment section is in a modular design.
3) The waste heat is fully utilized, the temperature of the gas from the catalytic combustion device is usually as high as one, two and one hundred degrees, the waste heat of the high-temperature gas from the catalytic combustion device is fully utilized by arranging the heat exchanger behind the catalytic combustion device, the gas at the outlet of the cooling area is subjected to heat exchange and temperature rise, the gas at the outlet of the cooling area is preheated and is sent to the desorption area, and the adsorption material in the desorption area of the concentration rotating wheel is desorbed.
4) The catalytic combustion purification adopts an anti-poisoning high-efficiency low-temperature catalyst, achieves higher purification efficiency (more than or equal to 95 percent) at lower temperature (200-300 ℃), and can tolerate components such as halogen and the like.
5) The method has wide application range and can adapt to the change and fluctuation of various components and concentrations of pollutants containing particles and organic waste gas.
6) The pretreatment section of the invention adopts the modular design with the same size, the number of modules can be flexibly increased and decreased, and the combination of different filtering modes can be carried out.
Therefore, the invention integrates pretreatment, waste gas adsorption concentration and desorption purification, has compact structure, small occupied area, high purification efficiency, low energy consumption and low operation cost, can be widely applied to the purification of waste gas with medium and small air volume, low concentration and concentration fluctuation, is convenient and quick to maintain equipment and has wide application value.
The invention is further described with reference to the following figures and detailed description.
Drawings
Fig. 1 is a block flow diagram of an exhaust gas adsorption apparatus in an embodiment.
Fig. 2 is an arrangement inside a pretreatment stage of the exhaust gas adsorption apparatus in the example.
Fig. 3 shows another arrangement inside the pretreatment stage of the exhaust gas adsorption apparatus in the example.
FIG. 4 is a schematic diagram of the internal structure of the catalytic combustion unit in the example.
FIGS. 5a and 5b are schematic external views of the heat transfer zone of the catalytic combustor unit in the examples.
FIG. 6 is a top view of the heat transfer zone of the catalytic combustor unit in an example embodiment.
FIG. 7 is a left side view of the heat transfer zone of the catalytic combustor stack in an example embodiment.
FIG. 8 is a right side view of the heat transfer zone of the catalytic combustor stack in an example embodiment.
Reference numbers in the figures: 1-a waste gas collecting system, 2-a device inlet, 3-a first fresh air inlet, 4-a first fresh air valve, 5-a first temperature sensor, 6-a pretreatment section box body, 7-a pretreatment section, 8-an adsorption concentration section box body, 9-a cooling zone switching valve, 10-a concentration runner, 11-a second fresh air valve, 12-a concentration sensor, 13-a second fresh air inlet, 14-a desorption purification section box body, 15-a system fan, 16-an exhaust cylinder, 17-a heat exchanger, 18-a proportion regulating valve, 19-a second temperature sensor, 20-a third temperature sensor, 21-a desorption fan, 22-a catalytic combustion unit, 23-a third fresh air valve, 24-a third fresh air inlet and 25-a device outlet, 26-an access door;
61-filtration module mounting plate, 62-G2 grade wire mesh filtration module, 63-DPA filtration module, 64-plate type precise demisting module, 65-plate type activated carbon purification module, 66-F6 grade filtration module, 67-H10 grade filtration module, 68-F5 grade filtration module, 69-filter cartridge filtration module, 70-F9 grade filtration module;
211-explosion venting port, 212-lifting lug, 213-heat insulation layer, 214-heating zone, 215-catalyst, 216-catalytic combustion zone, 217-heat exchange zone, 218-catalytic combustion outlet, 219-catalytic combustion inlet, 220-heat exchange zone waste gas heating outlet, 221-heat exchange zone tail gas cooling inlet, 222-heat exchange zone heating channel and 223-heat exchange zone cooling channel.
Detailed Description
Examples
Referring to fig. 1, a flow diagram in the figure illustrates a specific embodiment of the exhaust gas adsorption device of the present invention, the device integrally includes a pretreatment section box 6, an adsorption concentration section box 8, and a desorption purification section box 14, which are integrally connected, wherein a pretreatment section 7 for filtering exhaust gas is disposed inside the pretreatment section box 6, an adsorption concentration section for adsorbing and purifying exhaust gas is disposed inside the adsorption concentration section box 8, a concentration wheel 10 is mainly used for adsorbing and purifying exhaust gas, a system fan 15 and an exhaust funnel 16 for discharging purified exhaust gas are disposed inside the desorption purification section box 14, and a desorption purification section for desorbing the concentration wheel 10 specifically includes a desorption fan 21, a catalytic combustion unit 22, and a heat exchanger 17.
The inside preliminary treatment section of each box, adsorb and communicate in proper order between concentrated section and the desorption purification section, the concrete scheme is as follows: pretreatment section box 6 docks with device entry 2 of being connected exhaust gas collecting system 1, and exhaust gas collecting system 1 is current exhaust gas collecting equipment, and too much explanation is not done here to this embodiment, sets up multistage filter module mounting panel 61 in the inside of pretreatment section box 6, through the multistage different filter module of filter module mounting panel 61 installation, carries out multistage filtration to particulate matter in the waste gas.
With combined reference to fig. 2 and 3, there are shown two arrangements of the filtration modules of the pretreatment stage 7, wherein the pretreatment tank 6 in fig. 2 adopts a six-stage combined filtration mode for the working condition of viscous paint mist particle pollutants, and the specific filtration modules include a G2 grade wire mesh filtration module 62, a DPA filtration module 63, a plate type fine demisting module 64, a plate type activated carbon purification module 65, an F6 grade filtration module 66 and an H10 grade filtration module 67 which are respectively mounted on a filtration module mounting plate 61.
The working condition of the pretreatment box body 6 of fig. 3 for dust or quick-drying paint mist particles adopts a four-stage combined filtering mode, and the specific filtering modules comprise G2-grade wire mesh filtering modules 62 and F5 which are respectively arranged on a filtering module mounting plate 61Stage filtration module 68, cartridge filtration module 69, stage F9 filtration module 70. No matter the pretreatment section structure in FIG. 2 or FIG. 3, the surface of the pretreatment section box 6 is provided with an access door 26, which is convenient for the maintenance and replacement of the internal filtration module. The G2-grade wire mesh filtering modules 62 are all provided with a spraying system, so that backwashing can be carried out, and long-term stable use can be ensured; the spray system directly adopts the running water to spray (to the dust granule that easily washes etc.), also can add the medicament according to the operating mode, if to viscidity coating cloud particulate matter, can add coating cloud catching agent or the modified viscidity that disappears of coating cloud in spraying the aquatic, gets rid of the viscidity of coating cloud, makes it unable adhesion on filter module to avoid causing filter module's jam, influence filter module's mission. The sizes of various filtering modules in the pretreatment section box body 6 are consistent, the universality is ensured, the number of the modules can be flexibly increased or decreased according to the working conditions, and different filtering modes can be combined. The spacing between the filter module mounting plates 61 is 300mm or 400mm, and can be adjusted according to specific working conditions. The two filtration combination modes can ensure that the concentration of the particulate matters entering the concentration rotating wheel is less than or equal to 1mg/m3。
The inside concentrated runner 10 of adsorption concentration section box 8 has adsorption zone, cooling space and desorption district, and wherein the adsorption zone of concentrated runner 10 passes through the pipeline with the export of pretreatment section box 6 and directly communicates, and waste gas after the filtration purification of pretreatment section can directly get into the adsorption zone of concentrated runner 10, adsorbs purification to waste gas through the inside adsorbing material of concentrated runner. The outlet end of the concentrated rotating wheel 10 is connected to a system fan 15 inside a desorption purification section box body 14, the system fan 15 provides airflow negative pressure for waste gas from the waste gas collection system 1 to the pretreatment section box body to the concentrated rotating wheel 10, then the purified waste gas enters an exhaust funnel 16 in butt joint with the air outlet of the system fan through the system fan 15, the exhaust funnel 16 is connected with an outlet 25 of the device, and the waste gas is discharged from the outlet 25 of the device after reaching the standard.
Meanwhile, the air outlet of the pretreatment section box 6 is also connected in parallel with a pipeline and butted with a cooling area of the concentration rotating wheel 10, a cooling area switching valve 9 is arranged on the parallel pipeline, and the cooling area switching valve 9 is in a closed state normally. The exit end of the cooling zone of concentrated runner 10 is through the pipeline after butt joint to the heat exchanger 17 in desorption purification section box 14, utilize heat exchanger 17 to carry out the heat transfer to this part gas and heat up, then be connected to the desorption district of concentrated runner 10 through the pipeline backward flow, open cooling zone diverter valve 9 through switching, utilize the waste gas heating through after the preliminary treatment to carry out the desorption to concentrated runner 10, the desorption district exit end of concentrated runner 10 is through the desorption fan 21 of pipe connection in desorption purification section box 14, utilize desorption fan 21 to provide the negative pressure in the desorption process, and carry the waste gas after will desorbing in the catalytic combustion unit 22 of being connected with desorption fan 21, carry out catalytic combustion with the high concentration waste gas that the desorption came out and purify. Two pipelines are separated from the outlet of the catalytic combustion unit 22, one pipeline is directly connected to the exhaust funnel 16, the exhaust gas purified by catalytic combustion is discharged after reaching the standard, the other pipeline is connected to the heat exchange medium channel of the heat exchanger 17, the desorption gas is heated by using the waste heat generated by catalytic combustion of the exhaust gas, and the gas after heat exchange is connected to the exhaust funnel 16 again through the pipeline for discharge.
The concentration rotating wheel 10 may be a disc rotating wheel or a drum rotating wheel, and the adsorbent inside the concentration rotating wheel 10 may be zeolite molecular sieve, activated carbon or macroporous adsorbent resin, and the specific structure and the working principle of the concentration rotating wheel 10 belong to the conventional prior art, and the specific structure thereof is not described in this embodiment.
In the waste gas treatment device of this embodiment, the device entry 2 department of preliminary treatment section box 6 still is equipped with first temperature sensor 5, be equipped with first fresh air entry 3 and first fresh air valve 4 on the preliminary treatment section box 6, first fresh air valve 4 adopts the automatically controlled valve, first temperature sensor 5 and the control module feedback connection of first fresh air valve 4, detect the waste gas temperature who gets into the preliminary treatment section box through first temperature sensor 5, if the temperature is too high, then control first fresh air valve 4 and open partial fresh air of letting in and mix and reduce the waste gas temperature.
Still be equipped with second temperature sensor 19 on the pipeline between concentrated runner 10's desorption district and the heat exchanger 17, be equipped with second new trend entry 13 and the second new trend valve 11 with the cooling zone butt joint of concentrated runner 10 on the absorption concentration section box 8, second new trend valve 11 adopts electric control valve, second temperature sensor 19 is connected with the control module feedback of second new trend valve 11, it carries out the gas temperature that desorbs to get into concentrated runner 10 after the heat exchanger heat transfer to detect through second temperature sensor 19, if the gas temperature who carries out the desorption is too high, then control second new trend valve 11 opens and lets in partial new trend and the waste gas of preliminary treatment section and mix together, reduce desorption gas temperature. It can be seen that the cooling air source of the cooling area has two types, one is that the inlet waste gas is directly utilized, and the other is that the second fresh air valve 11 is opened by utilizing the external fresh air, the second fresh air inlet 13 supplies cold air, and the two cooling modes are switched by the switching valve 9 of the cooling area inlet.
Still be equipped with the concentration sensor 12 that detects desorption gas concentration on the pipeline between concentrated runner 10's desorption district and the desorption fan 21, be equipped with third new trend entry 24 and the third new trend valve 23 that dock to desorption fan 21 air intake on the desorption purification section box 14, third new trend valve 23 adopts electric control valve, concentration sensor 12 and the control unit feedback connection of third new trend valve 23, detect the exhaust gas concentration after desorption through concentration sensor 12, if the desorption exhaust gas concentration who gets into the catalytic combustion unit is too high, then control third new trend valve 23 is opened and is let in partial new trend and the desorption exhaust gas and mix, reduce the concentration of desorption exhaust gas.
The outlet of the catalytic combustion unit 22 is provided with a third temperature sensor 20, a proportional control valve 18 is arranged on a pipeline between the outlet of the catalytic combustion unit 22 and the heat exchanger 17, the proportional control valve 18 is an electric valve and can adjust the opening degree of air flow entering the heat exchanger 17, the flue gas temperature after catalytic combustion is detected through the third temperature sensor 20, and when the flue gas temperature is too high, the air volume respectively entering the heat exchanger 17 and directly discharged through the exhaust funnel can be balanced by increasing the opening degree of the proportional control valve 18.
Referring to fig. 4-8 in combination, the catalytic combustion unit 22 of this embodiment includes a heat exchange region 217, a heating region 214, and a catalytic combustion region 216, a heat exchange region temperature-increasing channel 222 and a heat exchange region temperature-decreasing channel 223 are disposed inside the heat exchange region 217, where the heat exchange region temperature-increasing channel 222 is communicated with a catalytic combustion inlet 219 of the catalytic combustion unit 22, the heat exchange region temperature-decreasing channel 223 is communicated with a catalytic combustion outlet 218 of the catalytic combustion unit 22, the heat exchange region temperature-increasing channel 222 is separately communicated with the heating region 214, the heat exchange region temperature-decreasing channel 223 is separately communicated with the catalytic combustion region 216, the heating region 214 is communicated with the catalytic combustion region 216, a pair of heating components is disposed inside the heating region 214, a catalyst 215 is disposed inside the catalytic combustion region 216 through a catalyst drawer, so as to facilitate installation and replacement of the catalyst 215, and the catalyst 215 of this embodiment adopts an anti-poisoning low-temperature efficient catalyst, such as halogen-resistant The catalyst may be used in combination with a plurality of catalysts. The desorbed waste gas enters a heat exchange area 217 from a catalytic combustion inlet 219 for heat exchange and preheating, then enters a heating area 214 through a heat exchange area heating channel 222 for heating and temperature rise, the waste gas reaching the catalytic combustion temperature enters a catalytic combustion area 216 for low-temperature high-efficiency oxidation and purification in the presence of a catalyst 215, then nontoxic and harmless high-temperature gas is produced, the purified gas enters a heat exchange area cooling channel 223 of the heat exchange area 217, the waste gas in the heat exchange area heating channel is preheated by using the heat of the flue gas after catalytic combustion, and finally the purified gas is discharged from a catalytic combustion outlet 218, wherein the gas flow direction is shown as the direction indicated by the arrow in fig. 4.
In the catalytic combustion unit 22 of the present embodiment, the heat exchange region 217 is located at the bottom of the unit, the heating regions 214 are located at two sides above the heat exchange region 217, and the catalytic combustion region 216 is located in the middle of the heating regions 214. The heat exchange area 217 is internally provided with a plate type heat exchange structure arranged in parallel, and comprises a plurality of parallel heat exchange channels, a heat exchange area heating channel 222 and a heat exchange area cooling channel 223 are alternately arranged in a staggered manner according to the parallel channels, wherein the bottom of the heat exchange area heating channel 222 is communicated with a catalytic combustion inlet 219, the top of the heat exchange area heating channel is uniformly connected to a heat exchange area waste gas heating outlet 220 at the bottom of the heating area 214, waste gas entering the catalytic combustion unit upwards enters the heating area 214 along the heat exchange area heating channel 222, the bottom of the heat exchange area cooling channel 223 is communicated with a catalytic combustion outlet 218, the top of the heat exchange area cooling channel 223 is uniformly connected to a heat exchange area tail gas cooling inlet 221 at the bottom of the catalytic combustion area 216, and high-temperature flue gas after catalytic combustion enters the heat exchange area downwards along the heat exchange area. The gas temperature-increasing flow direction is shown by the double-line arrows in fig. 6 to 8, and the gas temperature-decreasing flow direction is shown by the single-line arrows in fig. 6 to 8.
In order to avoid the internal temperature of the catalytic combustion unit 22 from leaking, the outer wall of the catalytic combustion unit 22 is provided with a heat insulation layer 213, lifting lugs 212 are symmetrically arranged at the top of the catalytic combustion unit 22, so that the catalytic combustion unit 22 is convenient to lift, and an explosion venting port 211 is further arranged at the position, corresponding to the catalytic combustion area 216, at the top of the catalytic combustion unit 22, so that the internal part of the catalytic combustion area 216 is prevented from exploding due to high temperature and high pressure.
The above description is only for the purpose of illustrating the present invention, and should not be taken as limiting the scope of the present invention. All equivalent changes and modifications made according to the claims and the content of the specification of the present invention are within the protection scope of the present invention.
Claims (10)
1. Waste gas treatment device, its characterized in that: comprises a pretreatment section, an adsorption concentration section and a desorption purification section which are sequentially communicated in a butt joint way;
the pretreatment section is in butt joint with an inlet of a device connected with the waste gas collecting system, and internally comprises a plurality of stages of filtering modules for filtering particulate matters in the waste gas;
the adsorption and concentration section comprises a concentration rotating wheel for adsorbing and purifying waste gas, an outlet of the pretreatment section is in butt joint with an adsorption area of the concentration rotating wheel, an outlet end of the concentration rotating wheel is in butt joint with a system fan, and the purified waste gas is discharged through an exhaust funnel connected with the system fan;
the desorption purification section comprises a heat exchanger, a desorption fan and a catalytic combustion unit;
the outlet of the pretreatment section is also in butt joint with a cooling area of the concentrated rotating wheel, a cooling area switching valve is arranged between the cooling area and the outlet of the pretreatment section, the outlet end of the cooling area is connected to a heat exchanger of the desorption purification section, then the concentrated rotating wheel is desorbed by a desorption area which is connected to the concentrated rotating wheel in a backflow mode, desorbed waste gas is connected to a desorption fan and is conveyed to the catalytic combustion unit through the desorption fan, the outlet of the catalytic combustion unit is directly connected to the exhaust funnel, and the outlet of the catalytic combustion unit is connected to the exhaust funnel through a heat exchange medium channel of the heat exchanger.
2. The exhaust treatment device of claim 1, the filtration modules comprising at least two of a wire mesh filtration module, a DPA filtration module, a plate fine mist rejection module, a plate activated carbon purification module, a class F5 filtration module, a class F6 filtration module, a class F9 filtration module, a class H10 filtration module, and a cartridge filtration module.
3. The exhaust gas treatment device according to claim 1, wherein the catalytic combustion unit comprises a heat exchange region, a heating region and a catalytic combustion region, the heat exchange region comprises a heat exchange region temperature increasing channel and a heat exchange region temperature decreasing channel which are respectively connected with the catalytic combustion inlet and the catalytic combustion outlet, the heating region and the catalytic combustion region are communicated with each other, the heat exchange region temperature increasing channel is separately communicated with the heating region, and the heat exchange region temperature decreasing channel is separately communicated with the catalytic combustion region.
4. The exhaust gas treatment device according to claim 3, wherein the heat exchange region inside the catalytic combustion unit is positioned at the bottom, the heating regions are positioned at two sides above the heat exchange region, and the catalytic combustion region is positioned in the middle of the heating regions;
the heat exchange area is internally provided with a parallel plate type heat exchange structure, and the internal heat exchange area warming channel and the heat exchange area cooling channel are alternately staggered, wherein the bottom of the heat exchange area warming channel is communicated with the catalytic combustion inlet, the top of the heat exchange area warming channel is uniformly connected to the heat exchange area waste gas warming outlet at the bottom of the heating area in a gathering mode, the bottom of the heat exchange area cooling channel is communicated with the catalytic combustion outlet, and the top of the heat exchange area cooling channel is uniformly connected to the heat exchange area tail gas cooling inlet at the bottom of the catalytic combustion area in a.
5. The exhaust gas treatment device according to claim 4, wherein the outer wall of the catalytic combustion unit is provided with an insulating layer.
6. The exhaust gas treatment device according to claim 5, wherein the top of the catalytic combustion area of the catalytic combustion unit is provided with an explosion venting port.
7. The exhaust gas treatment device of any one of claims 1 to 6, wherein a first temperature sensor is further arranged in the pretreatment section, a first fresh air inlet and a first fresh air valve are arranged on a box body of the pretreatment section, and the first temperature sensor is connected with the first fresh air valve in a feedback control mode.
8. The waste gas treatment device of claim 7, wherein a second temperature sensor is further arranged between the desorption region of the concentration rotating wheel and the heat exchanger, a second fresh air inlet and a second fresh air valve which are in butt joint with the cooling region of the concentration rotating wheel are arranged on the box body of the adsorption concentration section, and the second temperature sensor is connected with the second fresh air valve in a feedback control mode.
9. The waste gas treatment device according to claim 8, a concentration sensor for detecting the concentration of the desorbed gas is further arranged between the desorption region of the concentration rotating wheel and the desorption fan, a third fresh air inlet and a third fresh air valve which are butted with the desorption fan are arranged on the box body of the desorption purification section, and the concentration sensor is connected with the third fresh air valve in a feedback control manner.
10. The exhaust gas treatment device according to claim 9, wherein a third temperature sensor is arranged at an outlet of the catalytic combustion unit, the outlet of the catalytic combustion unit is connected with the heat exchanger through a proportional control valve, and the third temperature sensor is connected with the proportional control valve in a feedback control mode.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530234A (en) * | 2020-04-22 | 2020-08-14 | 航天凯天环保科技股份有限公司 | High-efficiency integrated waste gas treatment equipment and process |
| CN112588023A (en) * | 2020-11-20 | 2021-04-02 | 美埃(中国)环境科技股份有限公司 | VOCs treatment module all-in-one machine and working method thereof |
| CN112892137A (en) * | 2021-01-14 | 2021-06-04 | 航天凯天环保科技股份有限公司 | Modular high-efficient exhaust purification all-in-one of modularization |
| CN112915665A (en) * | 2021-02-26 | 2021-06-08 | 中车四方车辆有限公司 | Workshop welding smoke dust and waste gas treatment system and treatment method |
| CN115253591A (en) * | 2022-07-22 | 2022-11-01 | 嘉兴学院 | Catering oil smoke treatment system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205461665U (en) * | 2016-01-28 | 2016-08-17 | 河北耐驰环保设备有限公司 | Zeolite runner organic waste gas treatment facility |
| CN206587570U (en) * | 2017-03-21 | 2017-10-27 | 上海兰宝环保科技有限公司 | It is suitable for the exhaust treatment system of high humility organic exhaust gas |
| CN206980432U (en) * | 2017-06-13 | 2018-02-09 | 浙江爱闻格环保科技有限公司 | Electrostatic oil removing and emission-control equipment associated with the burning of runner adsorption/desorption catalyzing |
| CN207035157U (en) * | 2017-07-26 | 2018-02-23 | 福建省三净环保科技有限公司 | A kind of energy-efficient catalytic combustion device |
| CN207179683U (en) * | 2017-05-18 | 2018-04-03 | 上海同璞环保科技有限公司 | A kind of multistage catalytic combustion system |
| CN108854446A (en) * | 2018-08-08 | 2018-11-23 | 浙江省环境工程有限公司 | The system of zeolite runner treating organic exhaust gas by adsorptive-catalytic combustion |
| CN208817500U (en) * | 2018-08-30 | 2019-05-03 | 山东聚美清洁环卫设备有限公司 | Catalytic combustion system |
| CN208967815U (en) * | 2018-05-22 | 2019-06-11 | 上海科盈环保设备有限公司 | A kind of heating heat exchange integral type catalytic combustion burner |
| CN110227310A (en) * | 2019-06-19 | 2019-09-13 | 上海汉磊环保科技有限公司 | One kind VOCs containing styrene waste gas treatment device and method |
-
2019
- 2019-12-05 CN CN201911230897.6A patent/CN110898555A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205461665U (en) * | 2016-01-28 | 2016-08-17 | 河北耐驰环保设备有限公司 | Zeolite runner organic waste gas treatment facility |
| CN206587570U (en) * | 2017-03-21 | 2017-10-27 | 上海兰宝环保科技有限公司 | It is suitable for the exhaust treatment system of high humility organic exhaust gas |
| CN207179683U (en) * | 2017-05-18 | 2018-04-03 | 上海同璞环保科技有限公司 | A kind of multistage catalytic combustion system |
| CN206980432U (en) * | 2017-06-13 | 2018-02-09 | 浙江爱闻格环保科技有限公司 | Electrostatic oil removing and emission-control equipment associated with the burning of runner adsorption/desorption catalyzing |
| CN207035157U (en) * | 2017-07-26 | 2018-02-23 | 福建省三净环保科技有限公司 | A kind of energy-efficient catalytic combustion device |
| CN208967815U (en) * | 2018-05-22 | 2019-06-11 | 上海科盈环保设备有限公司 | A kind of heating heat exchange integral type catalytic combustion burner |
| CN108854446A (en) * | 2018-08-08 | 2018-11-23 | 浙江省环境工程有限公司 | The system of zeolite runner treating organic exhaust gas by adsorptive-catalytic combustion |
| CN208817500U (en) * | 2018-08-30 | 2019-05-03 | 山东聚美清洁环卫设备有限公司 | Catalytic combustion system |
| CN110227310A (en) * | 2019-06-19 | 2019-09-13 | 上海汉磊环保科技有限公司 | One kind VOCs containing styrene waste gas treatment device and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530234A (en) * | 2020-04-22 | 2020-08-14 | 航天凯天环保科技股份有限公司 | High-efficiency integrated waste gas treatment equipment and process |
| CN112588023A (en) * | 2020-11-20 | 2021-04-02 | 美埃(中国)环境科技股份有限公司 | VOCs treatment module all-in-one machine and working method thereof |
| CN112892137A (en) * | 2021-01-14 | 2021-06-04 | 航天凯天环保科技股份有限公司 | Modular high-efficient exhaust purification all-in-one of modularization |
| WO2022151699A1 (en) * | 2021-01-14 | 2022-07-21 | 航天凯天环保科技股份有限公司 | Combined modular integrated machine for efficient purification of exhaust gas |
| CN112915665A (en) * | 2021-02-26 | 2021-06-08 | 中车四方车辆有限公司 | Workshop welding smoke dust and waste gas treatment system and treatment method |
| CN115253591A (en) * | 2022-07-22 | 2022-11-01 | 嘉兴学院 | Catering oil smoke treatment system |
| CN115253591B (en) * | 2022-07-22 | 2023-09-08 | 嘉兴学院 | Catering oil smoke processing system |
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