CN106938177A - A kind of organic waste gas treatment equipment - Google Patents
A kind of organic waste gas treatment equipment Download PDFInfo
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- CN106938177A CN106938177A CN201710296904.7A CN201710296904A CN106938177A CN 106938177 A CN106938177 A CN 106938177A CN 201710296904 A CN201710296904 A CN 201710296904A CN 106938177 A CN106938177 A CN 106938177A
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- 239000007789 gas Substances 0.000 title claims abstract description 115
- 238000011282 treatment Methods 0.000 title claims abstract description 50
- 239000010815 organic waste Substances 0.000 title claims abstract description 37
- 230000003197 catalytic effect Effects 0.000 claims abstract description 64
- 239000002912 waste gas Substances 0.000 claims abstract description 60
- 230000008676 import Effects 0.000 claims abstract description 58
- 230000003647 oxidation Effects 0.000 claims abstract description 57
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 57
- 238000007639 printing Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 230000001590 oxidative effect Effects 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 29
- 238000006555 catalytic reaction Methods 0.000 claims description 16
- 239000012855 volatile organic compound Substances 0.000 abstract description 36
- 230000015271 coagulation Effects 0.000 abstract description 5
- 238000005345 coagulation Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
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Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/343—Heat recovery
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/869—Multiple step processes
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Abstract
The invention discloses a kind of organic waste gas treatment equipment, including one stage catalyzing oxidation unit, two grades of catalytic oxidizing equipments, one stage catalyzing oxidation unit includes exhaust gas inlet, first outlet, second outlet and one stage catalyzing bed, two grades of catalytic oxidizing equipments include purified gas import, clean gas outlet and two grades of catalytic beds, exhaust gas inlet is connected by one stage catalyzing bed with first outlet, second outlet, purified gas import is connected by two grades of catalytic beds with clean gas outlet, second outlet and purified gas inlet communication.By the present invention, organic exhaust gas passes through firsts and seconds catalytic oxidizing equipment, and VOCs treatment is clean, and device input cost is low.Simultaneously, whole waste gas pass through one stage catalyzing oxidation processes, most of waste gas after coagulation can send exhaust air discharge equipment (such as printing machine drying tunnel) back to again as fresh hot air, reduce exhaust air discharge equipment heating energy consumption, waste gas of the fraction after coagulation enters two grades of catalytic oxidation treatments, reaches minimum discharge.
Description
Technical field
The present invention relates to technical field of waste gas treatment, in particular to a kind of organic waste gas treatment equipment, especially one
Plant the organic waste gas treatment equipment for including VOCs in intaglio printing and coating process.
Background technology
Coating can discharge a number of waste gas containing volatile organic solvent with printing machine drying tunnel in gravure printing process
(referred to as：Waste gas containing VOCs, VOCs is volatile organic compounds, volatile organic matter).It is discharged into air
In VOCs environment can be caused directly and consequential injury：First, VOCs can cause tuberculosis, nervous system disease after being sucked by human body
The illnesss such as disease, cancer, deformity；Second, VOCs and NOx etc. produces ozone under sunlight irradiation in air, and ozone intense stimulus
The respiratory tract of people, causes abscess of throat, cough uncomfortable in chest, triggers bronchitis and pulmonary emphysema；Ozone will also result in the nerve of people
Poison, dizziness headache, visual impairment, memory loss；Ozone can also play destruction to the vitamin E in human body skin, cause
The skin of people is set to wrinkle, blackspot occur；Ozone can also destroy the immunity function of human body, induce lymphocyte chromosome lesion, plus
Fast aging, causes pregnant woman to have a deformed child.
In view of injuries of the VOCs to environment and human body, country has taken up the discharge that strict regulation limits VOCs.Therefore,
Coating with gravure printing process, it is necessary to VOCs processing to discharge.
In order to reduce the investment cost and operating cost of VOCs processing equipments, coating machine or printing machine generally use LEL
(Low Explosive Level, LEL) detection technique controls VOCs concentration of emissions, and current coating machine or printing machine are adopted
Take concentration of emission after LEL monitoring and controllings usual in 5000mg/m3To 10000mg/m3Between, therefore, what VOCs processing units faced
Technical barrier is how that by VOCs contents be 5000mg/m3To 10000mg/m3Between waste gas take the small operating cost of investment
Low device processing is less than 50mg/m to VOCs contents3。
Traditional heating power oxidation unit or catalytic oxidizing equipment can effectively handle the waste gas containing VOCs and resolve into dioxy
Change carbon and water, still, traditional heating power oxidation unit or catalytic oxidizing equipment, by VOCs contents 5000mg/m3Arrive
10000mg/m3Between exhaust-gas treatment to VOCs contents be less than 50mg/m3When, the investment of processing equipment and operating cost are high, and
Operational reliability is not high.
Therefore, the structure of organic waste gas treatment equipment how is improved, to reduce processing equipment investment and operating cost, is improved
Equipment reliability of operation, the technical problem as those skilled in the art's urgent need to resolve.
The content of the invention
In consideration of it, the present invention proposes a kind of organic waste gas treatment equipment, to reduce processing equipment investment and operating cost,
Improve equipment reliability of operation.
A kind of organic waste gas treatment equipment proposed by the present invention, including one stage catalyzing oxidation unit, two grades of catalysis oxidation dresses
Put, the one stage catalyzing oxidation unit includes exhaust gas inlet, first outlet, second outlet and one stage catalyzing bed, and described two grades are urged
Changing oxidation unit includes purified gas import, clean gas outlet and two grades of catalytic beds, and the exhaust gas inlet passes through described one stage catalyzing
Bed is connected with the first outlet, second outlet, and the purified gas import is gone out by two grades of catalytic beds with the purified gas
Mouth connection, the second outlet and the purified gas inlet communication, the one stage catalyzing bed and two grades of catalytic beds are used for passing through
Organic exhaust gas carry out catalysis oxidation.
Above-mentioned organic waste gas treatment equipment, it is preferable that the one stage catalyzing oxidation unit also includes the first air heat-exchange
Device, the second air heat exchanger and the first auxiliary heater, waste gas described in the first inlet communication of first air heat exchanger enter
Mouthful, the first outlet of first air heat exchanger connects the first import of second air heat exchanger, second air
The first outlet of heat exchanger connects the import of first auxiliary heater, the outlet one-level of first auxiliary heater
The import of catalytic bed, the second import of the second air heat exchanger described in the outlet of the one stage catalyzing bed, described second is empty
The second outlet of gas heat exchanger is respectively communicated with the second import of the second outlet and first air heat exchanger, described first
The second outlet of air heat exchanger connects the first outlet.
Above-mentioned organic waste gas treatment equipment, it is preferable that the one stage catalyzing oxidation unit also includes the first air mass flow
Valve and the second air flow valve, the exhaust gas inlet connect first air heat exchanger by first air flow valve
First import, the exhaust gas inlet connects the first import of second air heat exchanger by the second air flow valve.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including the first temperature sensor, first temperature sensor
It is arranged on the pipeline between the outlet of the one stage catalyzing bed and the second import of second air heat exchanger, described first
The detected value of temperature sensor is used for aperture or the keying for controlling first air flow valve and the second air flow valve.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including controller, the signal of first temperature sensor is defeated
Go out end to be connected with the signal input part of the controller, the controller is preset with first threshold and Second Threshold, when described the
When the detected value of one temperature sensor is less than first threshold, the controller is used for the aperture for controlling first air flow valve
Fully open, control second air flow valve to completely close.When the detected value of first temperature sensor is more than first
During threshold value, the controller is used to control the aperture of first air flow valve to reduce, and controls second air flow valve
Aperture increase；When the detected value of first temperature sensor is more than Second Threshold, the controller is described for controlling
The aperture of first air flow valve continues to reduce or fully open, control the aperture of second air flow valve continue to increase or
Fully open；The Second Threshold is more than first threshold.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including the first aerial cooler, first aerial cooler
Import connected with the first outlet.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including the first blower fan and air cleaner, first blower fan
Import and the first aerial cooler outlet, the import of the air cleaner and the outlet of first blower fan connect
It is logical.
Above-mentioned organic waste gas treatment equipment, it is preferable that two grades of catalytic oxidizing equipments also wrap the second auxiliary heating dress
Put, the second aerial cooler and the second blower fan, the import of second assisted heating device and the purified gas inlet communication, institute
State outlet and the inlet communications of two grades of catalytic beds of the second assisted heating device, the outlet of two grades of catalytic beds with it is described
The inlet communication of second aerial cooler, the outlet of second aerial cooler is connected with second blower fan, and described second
Clean gas outlet described in the outlet of blower fan.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including second temperature sensor, the second temperature sensor
It is arranged on the pipeline between the second outlet and the purified gas import, the detected value of the second temperature sensor is used for
Control the start and stop of second assisted heating device.
Above-mentioned organic waste gas treatment equipment, it is preferable that the organic waste gas treatment equipment is used for coating machine or printing
The waste gas of machine discharge is handled, the Waste gas outlet of the exhaust gas inlet connection coating machine or printing machine, the first outlet
The air inlet of the coating machine or printing machine is connected, the clean gas outlet leads to air.
A kind of organic waste gas treatment equipment proposed by the present invention, including one stage catalyzing oxidation unit, two grades of catalysis oxidation dresses
Put, one stage catalyzing oxidation unit includes exhaust gas inlet, first outlet, second outlet and one stage catalyzing bed, two grades of catalysis oxidation dresses
Put including purified gas import, clean gas outlet and two grades of catalytic beds, exhaust gas inlet passes through one stage catalyzing bed and first outlet, second
Outlet, purified gas import is connected by two grades of catalytic beds with clean gas outlet, second outlet and purified gas inlet communication, one
Level catalytic bed and two grades of catalytic beds are used to carry out catalysis oxidation to the organic exhaust gas of process.By this programme, having to air is arranged
Machine waste gas passes through one stage catalyzing oxidation unit and two grades of catalytic oxidizing equipments, can carry out catalytic oxidation treatment twice, organic waste
Gas disposal is clean, and device input cost is low.Meanwhile, whole waste gas pass through one stage catalyzing oxidation processes, most of by one-level
Waste gas after reason can send exhaust air discharge equipment (such as printing machine drying tunnel) back to again as fresh hot air, and reduction waste gas discharge is set
Standby heating energy consumption, makes equipment operating cost low, waste gas of the fraction after coagulation enters two grades of catalytic oxidation treatments, reaches
To minimum discharge, simultaneously, it is only necessary to which two catalytic oxidizing equipments are that can be achieved, and operational reliability is good.
By taking the VOCs treatment that coating machine or printing machine are discharged as an example, using when, exhaust gas inlet can be connected and be coated with
The air inlet of the Waste gas outlet of machine or printing machine, first outlet connection coating machine or printing machine, clean gas outlet leads to air.
It is appreciated that being filled with catalyst in one stage catalyzing bed and two grades of catalytic beds, the function of catalyst is in specific temperature range
Under, VOCs in waste gas is oxidized to water and carbon dioxide.By the program, the waste gas of coating machine or printing machine discharge, all
Handled by one stage catalyzing oxidation unit, the waste gas of coating machine or printing machine discharge is by one stage catalyzing oxidation unit
During reason, about more than 90% VOCs changes into carbon dioxide and water in waste gas.Meanwhile, the waste gas of coating machine or printing machine discharge
The air inlet that most of waste gas sends coating machine or printing machine back to through first outlet after the processing of one stage catalyzing oxidation unit is worked as
Fresh air is used, and fraction is sent to two grades of catalytic oxidizing equipments and further carries out catalytic oxidation treatment, and waste gas is by two grades of catalysis
After oxidation processes, remaining 98%VOCs is further converted into carbon dioxide and water in waste gas, and experiment shows, by two grades of catalysis
VOCs contents are minimum in waste gas after oxidation unit processing can be less than 10mg/m3, the discharge significantly allowed less than country will
Ask.In addition, the purify air of purified gas outlet discharge can be fed again into the second import of coating machine or printing machine, circulation profit
With operating cost is low.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram for organic waste gas treatment equipment that the specific embodiment of the invention is proposed；
In figure：10 one stage catalyzing oxidation units；11 first air heat exchangers；12 second air heat exchangers；13 first auxiliary
Heater；14 one stage catalyzing beds；15 first temperature sensors；20 2 grades of catalytic oxidizing equipments；21 second assisted heating devices；22
Two grades of catalytic beds；23 second aerial coolers；24 second blower fans；30 first aerial coolers；40 first blower fans；50 air filtrations
Device；60 second temperature sensors；A exhaust gas inlets；B first outlets；C second outlets；D purified gas imports；E clean gas outlets；F1
First air flow valve；The air flow valves of F2 second
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
It should be noted that " first ", " second " that occurs in the present invention is only used for distinguishing different structure and part, no elder generation
Point afterwards, the less restriction as structure or part in itself；Meanwhile, the "and/or" in the present invention, referring to can both be provided simultaneously with,
One of them can also be selected, such as option A and/or option b, including option A, option b, option A and option b this three kinds of situations.
As shown in figure 1, a kind of organic waste gas treatment equipment of the specific embodiment of the invention, including one stage catalyzing oxidation unit
10th, two grades of catalytic oxidizing equipments 20, one stage catalyzing oxidation unit 10 includes exhaust gas inlet a, first outlet b, second outlet c and one
Level catalytic bed 14, two grades of catalytic oxidizing equipments 20 include purified gas import d, clean gas outlet e and two grades of catalytic beds 22, and waste gas enters
Mouth a is connected by one stage catalyzing bed 14 with first outlet b, second outlet c, and purified gas import d is by two grades of catalytic beds 22 and only
Change gas outlet e connections, second outlet c is connected with purified gas import d, one stage catalyzing bed 14 and two grades of catalytic beds 22 are used for passing through
Organic exhaust gas carry out catalysis oxidation.By this programme, arrange to the organic exhaust gas of air and pass through the one stage catalyzing He of oxidation unit 10
Two grades of catalytic oxidizing equipments 20, can carry out catalytic oxidation treatment twice, and exhaust-gas treatment is clean, and device input cost is low.Meanwhile,
Whole waste gas pass through one stage catalyzing oxidation processes, and most of waste gas after coagulation can send waste gas discharge back to again and set
Standby (such as printing machine drying tunnel) makes equipment operating cost low, small portion as fresh hot air, reduction exhaust air discharge equipment heating energy consumption
The waste gas that lease making is crossed after coagulation enters two grades of catalytic oxidation treatments, reaches minimum discharge, simultaneously, it is only necessary to two catalysis oxygen
Makeup, which is put, can be achieved, and operational reliability is good.
By taking the VOCs treatment that coating machine or printing machine are discharged as an example, using when, exhaust gas inlet a can be connected and be coated with
The air inlet of the Waste gas outlet of machine or printing machine, first outlet b connection coating machines or printing machine, clean gas outlet e client is led to
To air.It is appreciated that being filled with catalyst in one stage catalyzing bed 14 and two grades of catalytic beds 22, the function of catalyst is specific
Temperature range under, VOCs in waste gas is oxidized to water and carbon dioxide.By the program, coating machine or printing machine discharge
Waste gas, is all handled by one stage catalyzing oxidation unit 10, and the waste gas of coating machine or printing machine discharge is urged by one-level
When changing oxidation unit processing, about more than 90% VOCs changes into carbon dioxide and water in waste gas.Meanwhile, coating machine or printing
The waste gas of machine discharge most of waste gas after the processing of one stage catalyzing oxidation unit 10 sends coating machine or print back to through first outlet b
The air inlet of brush machine is used when fresh air, and fraction is sent to two grades of catalytic oxidizing equipments 20 and further carries out catalytic oxidation treatment,
Waste gas is after two grades of catalytic oxidation treatments, and remaining 98%VOCs is further converted into carbon dioxide and water in waste gas, experiment
Show, VOCs contents are minimum in the waste gas after two grades of catalytic oxidizing equipments 20 are handled can be less than 10mg/m3, it is significantly low
The emission request allowed in country.In addition, the purify air of purified gas outlet e discharges can be fed again into coating machine or printing
Second import of machine, is recycled, operating cost is low.
Above-mentioned organic waste gas treatment equipment, to ensure that the waste gas for entering catalytic bed 14 can be carried out at a suitable temperature
Catalytic reaction (usual 300 DEG C or so), it is preferable that one stage catalyzing oxidation unit 10 also includes the first air heat exchanger 11, second
The auxiliary heater 13 of air heat exchanger 12 and first, the first inlet communication exhaust gas inlet a of the first air heat exchanger 11, first is empty
The first outlet of gas heat exchanger 11 connects the first import of the second air heat exchanger 12, the first outlet of the second air heat exchanger 12
Connect the import of the first auxiliary heater 13, the import of the one stage catalyzing bed 14 of outlet of the first auxiliary heater 13, one-level
Second import of the second air heat exchanger of outlet 12 of catalytic bed 14, the second outlet of the second air heat exchanger 12 connects respectively
Logical second outlet c and the first air heat exchanger 11 the second import, the second outlet connection first of the first air heat exchanger 11 go out
Mouth b.First air heat exchanger 11, the second air heat exchanger 12 can realize the heat exchange between cold air and hot-air, and first is auxiliary
The function of helping heater 13 be equipment initial start stage using aid in heat energy by the air for entering one stage catalyzing bed 14 be heated to setting
Temperature, to carry out catalytic oxidation in one stage catalyzing bed 14 in the waste gas containing VOCs.Equipment start later stage, due to from
The gas that one stage catalyzing bed 14 is discharged sequentially passes through the second air heat exchanger 12 and the first air heat exchanger 11, it is possible to use from one
The gas that level catalytic bed 14 is discharged is heated to organic exhaust gas.Energy recycling, operating cost is low.
Because the VOCs reactions for being oxidized to carbon dioxide and water can discharge heat, so, the waste gas containing VOCs passes through one-level
During catalytic bed 14, EGT can be raised, because catalyst bearing temperature is limited, so needing to leaving one stage catalyzing bed 14
EGT is controlled.Above-mentioned organic waste gas treatment equipment, for ease of the EGT to the one stage catalyzing bed 14 left
It is controlled, it is preferable that one stage catalyzing oxidation unit 10 also includes the first air flow valve F1 and the second air flow valve F2, gives up
Gas import a connects the first import of the first air heat exchanger 11 by the first air flow valve F1, and exhaust gas inlet a is empty by second
Throughput valve F2 connects the first import of the second air heat exchanger 12.Due to entering one stage catalyzing by the first air flow valve F1
The waste gas of bed 14 can be heated by the first air heat exchanger 11 and the second air heat exchanger 12, and pass through the second air flow valve F2
Waste gas into one stage catalyzing bed 14 is only heated by the second air heat exchanger 12, therefore, is entered from the first air flow valve F1
EGT it is high, the temperature of air is also high when leaving one stage catalyzing bed 14, the waste gas temperature entered from the second air flow valve F2
Degree is low, and the temperature of air is also low when leaving one stage catalyzing bed 14.It therefore, it can by adjusting the first air flow valve F1 and second
Air flow valve F2 aperture, to adjust EGT when leaving one stage catalyzing bed 14.When the second air flow valve F2 closings,
The air handled the need for all is obtained from the first air flow valve F1 into the first air heat exchanger 11 entered back into after heat
During two air heat exchangers 12, waste gas leaves temperature highest during one stage catalyzing bed 14；And when the first air flow valve F1 closings, institute
The air of processing in need from the second air flow valve F2 directly flow through the second air heat exchanger 12 when, waste gas leaves one stage catalyzing
Temperature during bed 14 is minimum.Therefore, regulation the first air flow valve F1 and the second air flow valve F2 apertures can by waste gas from
Temperature adjustment when opening one stage catalyzing bed 14 is in desired scope.
Above-mentioned organic waste gas treatment equipment, for ease of being controlled to leaving EGT during one stage catalyzing bed 14,
Preferably, the equipment also includes the first temperature sensor 15, and the first temperature sensor 15 is arranged on the outlet of one stage catalyzing bed 14
On the pipeline between the second import with the second air heat exchanger 12, the detected value of the first temperature sensor 15 is used to control first
Air flow valve F1 and the second air flow valve F2 aperture or keying.Specifically, the equipment can also include controller, first
The signal output part of temperature sensor 15 and the signal input part of controller are connected, and controller is preset with first threshold and the second threshold
Value, when the detected value of the first temperature sensor 15 is less than first threshold, controller is used to control the first air flow valve F1's
Aperture is fully opened, and the second air flow valve F2 of control is completely closed.When the detected value of the first temperature sensor 15 is more than first
During threshold value, controller is used to control the first air flow valve F1 aperture to reduce, and the second air flow valve F2 of control aperture increases
Plus；When the detected value of the first temperature sensor 15 is more than Second Threshold, controller is used to control the first air flow valve F1's
Aperture continues to reduce or fully open, and the second air flow valve F2 of control aperture continues to increase or fully open；Second Threshold
More than first threshold.Therefore, by the program, can by leave one stage catalyzing bed 14 EGT control certain limit it
It is interior.
Above-mentioned organic waste gas treatment equipment, it is preferable that also including the first aerial cooler 30, the first blower fan 40 and air
Filter 50, the import of the first aerial cooler 30 is connected with first outlet b, and import and the first air of the first blower fan 40 are cooled down
The outlet of device 30, the outlet of the import of air cleaner 50 and the first blower fan 40, the outlet of air cleaner 50 can be with
The first import of coating machine or printing machine is connected, so as to reduce air heating energy consumption.In this programme, the first aerial cooler 30
Function is exactly to utilize the air after circulating water catalysis oxidation, on the one hand obtains high-temperature water, makes heat recovery, and in addition one
Aspect protects the first blower fan 40；The function of air cleaner 50 is to filter small in waste gas using resistant to elevated temperatures high efficiency particulate air filter
Particulate matter.
Above-mentioned organic waste gas treatment equipment, two grades of catalytic oxidizing equipments 20 also wrap the second assisted heating device 21, second
The blower fan 24 of aerial cooler 23 and second, the import of the second assisted heating device 21 is connected with purified gas import d, and the second auxiliary adds
The outlet of thermal 21 and the inlet communication of two grades of catalytic beds 22, outlet and the second aerial cooler 23 of two grades of catalytic beds 22
Inlet communication, the outlet of the second aerial cooler 23 is connected with the second blower fan 24, and the outlet purified gas of the second blower fan 24 goes out
Mouth e.Second assisted heating device 21 is used to heat the air themperature for entering two grades of catalytic beds 22, so that the waste gas containing VOCs exists
Catalytic oxidation is carried out in two grades of catalytic beds 22 at suitable temperature.The function of second aerial cooler 23 is exactly to utilize to follow
Air of the ring water cooling after two grades of catalysis oxidations, on the one hand obtains high-temperature water, makes heat recovery, still further aspect protection
Second blower fan 24.
In such scheme, it is preferable that also including second temperature sensor 60, second temperature sensor 60 is arranged at second and gone out
On pipeline between mouth c and purified gas import d, the detected value of second temperature sensor 60 is used to control the second assisted heating device
21 start and stop.Specifically, the signal output part of second temperature sensor 60 can be connected with controller, the is preset with control
Three threshold values, when the detected value of second temperature sensor 60 is less than first threshold, the second assisted heating device 21 is opened, when second
When the detected value of temperature sensor 60 is higher than first threshold, the second assisted heating device 21 is closed.By the program, it will can enter
The waste gas for entering the VOCs of two grades of catalytic beds 22 is maintained at suitable temperature range, is conducive to catalytic oxidation.
In addition, it is necessary to explanation, because catalytic oxidation process can consume oxygen, so, implementing coating or printing
During operation, it is necessary to supplement fresh air into coating machine or printing machine circulation air, fresh air can take the initiative air-supply
Or the mode leaked out enters coating machine or printing machine air circulation system.The exhaust air rate of two grades of catalytic oxidizing equipments 20 is equal to
Into the amount of fresh air of coating machine or printing machine air circulation system.Due to giving up for all two grades of catalytic oxidizing equipments of entrance
Gas is all that VOCs contents are in below 200mg/m3 in the waste gas after one stage catalyzing bed, waste gas, and these waste gas are urged by two grades
Change after oxidation unit, VOCs contents can be in below 10mg/m3 in waste gas.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of organic waste gas treatment equipment, it is characterised in that including one stage catalyzing oxidation unit (10), two grades of catalysis oxidation dresses
Put (20), the one stage catalyzing oxidation unit (10) includes exhaust gas inlet (a), first outlet (b), second outlet (c) and one-level
Catalytic bed (14), two grades of catalytic oxidizing equipments (20) include purified gas import (d), clean gas outlet (e) and two grades of catalysis
Bed (22), the exhaust gas inlet (a) is connected by the one stage catalyzing bed (14) and the first outlet (b), second outlet (c)
Logical, the purified gas import (d) is connected by two grades of catalytic beds (22) with the clean gas outlet (e), and described second goes out
Mouth (c) is connected with the purified gas import (d), and the one stage catalyzing bed (14) and two grades of catalytic beds (22) are used to have process
Machine waste gas carries out catalysis oxidation.
2. organic waste gas treatment equipment according to claim 1, it is characterised in that the one stage catalyzing oxidation unit (10)
Also include the first air heat exchanger (11), the second air heat exchanger (12) and the first auxiliary heater (13), first air
Exhaust gas inlet (a) described in first inlet communication of heat exchanger (11), the first outlet connection of first air heat exchanger (11)
First import of second air heat exchanger (12), the first outlet connection described first of second air heat exchanger (12)
The import of auxiliary heater (13), the import of the one stage catalyzing bed of outlet (14) of first auxiliary heater (13), institute
State the second import of the second air heat exchanger (12) described in the outlet of one stage catalyzing bed (14), second air heat exchanger
(12) second outlet is respectively communicated with the second import of the second outlet (c) and first air heat exchanger (11), described
The second outlet of first air heat exchanger (11) connects the first outlet (b).
3. organic waste gas treatment equipment according to claim 2, it is characterised in that the one stage catalyzing oxidation unit (10)
Also include the first air flow valve (F1) and the second air flow valve (F2), the exhaust gas inlet (a) passes through first air
Flow valve (F1) connects the first import of first air heat exchanger (11), and the exhaust gas inlet (a) passes through the second air stream
Measure the first import that valve (F2) connects second air heat exchanger (12).
4. organic waste gas treatment equipment according to claim 3, it is characterised in that also including the first temperature sensor
(15), first temperature sensor (15) is arranged on the outlet of the one stage catalyzing bed (14) and second air heat exchanger
(12) on the pipeline between the second import, the detected value of first temperature sensor (15) is used to control first air
The aperture or keying of flow valve (F1) and the second air flow valve (F2).
5. organic waste gas treatment equipment according to claim 4, it is characterised in that also including controller, first temperature
The signal output part of degree sensor (15) is connected with the signal input part of the controller, and the controller is preset with first threshold
And Second Threshold, when the detected value of first temperature sensor (15) is less than first threshold, the controller is used to control
The aperture of first air flow valve (F1) is fully opened, and controls second air flow valve (F2) to completely close.Work as institute
When the detected value for stating the first temperature sensor (15) is more than first threshold, the controller is used to control first air mass flow
The aperture of valve (F1) reduces, and controls the aperture increase of second air flow valve (F2)；When first temperature sensor
(15) when detected value is more than Second Threshold, the controller is used to control the aperture of first air flow valve (F1) to continue
Reduce or fully open, control the aperture of second air flow valve (F2) to continue to increase or fully open；Second threshold
Value is more than first threshold.
6. the organic waste gas treatment equipment according to claim any one of 1-5, it is characterised in that also cold including the first air
But device (30), the import of first aerial cooler (30) is connected with the first outlet (b).
7. organic waste gas treatment equipment according to claim 6, it is characterised in that also including the first blower fan (40) and air
Filter (50), the import of first blower fan (40) and the first aerial cooler (30) outlet, the air mistake
The import of filter (50) and the outlet of first blower fan (40).
8. the organic waste gas treatment equipment according to claim any one of 1-5, it is characterised in that two grades of catalysis oxidations
Device (20) also wraps the second assisted heating device (21), the second aerial cooler (23) and the second blower fan (24), and described second is auxiliary
Help the import of heater (21) to be connected with the purified gas import (d), the outlet of second assisted heating device (21) with
The inlet communication of two grades of catalytic beds (22), the outlet of two grades of catalytic beds (22) and second aerial cooler (23)
Inlet communication, the outlet of second aerial cooler (23) connects with second blower fan (24), second blower fan
(24) clean gas outlet (e) described in outlet.
9. organic waste gas treatment equipment according to claim 8, it is characterised in that also including second temperature sensor
(60), the second temperature sensor (60) is arranged at the pipeline between the second outlet (c) and the purified gas import (d)
On, the detected value of the second temperature sensor (60) is used for the start and stop for controlling second assisted heating device (21).
10. the organic waste gas treatment equipment according to claim any one of 1-5, it is characterised in that at the organic exhaust gas
Reason equipment is used to handle the waste gas that coating machine or printing machine are discharged, exhaust gas inlet (a) the connection coating machine or printing
The Waste gas outlet of machine, the first outlet (b) connects the air inlet of the coating machine or printing machine, the clean gas outlet
(e) air is led to.
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| CN201710296904.7A CN106938177A (en) | 2017-04-28 | 2017-04-28 | A kind of organic waste gas treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296904.7A CN106938177A (en) | 2017-04-28 | 2017-04-28 | A kind of organic waste gas treatment equipment |
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| CN106938177A true CN106938177A (en) | 2017-07-11 |
Family
ID=59464383
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710296904.7A Pending CN106938177A (en) | 2017-04-28 | 2017-04-28 | A kind of organic waste gas treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432943A (en) * | 2018-12-22 | 2019-03-08 | 江嗣中 | Continuous type organic waste gas catalytic purification apparatus and its operation method |
| CN113144886A (en) * | 2020-12-31 | 2021-07-23 | 杭州谱育科技发展有限公司 | VOCs waste gas treatment system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136841A (en) * | 2007-12-10 | 2009-06-25 | Chubu Electric Power Co Inc | Catalyst oxidation treatment device and catalyst oxidation treatment method |
| CN102913919A (en) * | 2011-08-01 | 2013-02-06 | 中国石油化工股份有限公司 | Method for purifying high-concentration organic waste gas |
| CN204093308U (en) * | 2014-09-26 | 2015-01-14 | 董新良 | A kind of emission-control equipment for coating machine and coating machine |
| CN205042364U (en) * | 2015-08-13 | 2016-02-24 | 中国石油化工股份有限公司 | Low temperature heat accumulation formula catalytic oxidation processing apparatus |
| CN105749695A (en) * | 2016-04-22 | 2016-07-13 | 南京大学环境规划设计研究院有限公司 | Low concentration, large wind volume and high odor waste gas concentration energization equipment and technology thereof |
| CN206810059U (en) * | 2017-04-28 | 2017-12-29 | 广州黑马科技有限公司 | A kind of organic waste gas treatment equipment |
-
2017
- 2017-04-28 CN CN201710296904.7A patent/CN106938177A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136841A (en) * | 2007-12-10 | 2009-06-25 | Chubu Electric Power Co Inc | Catalyst oxidation treatment device and catalyst oxidation treatment method |
| CN102913919A (en) * | 2011-08-01 | 2013-02-06 | 中国石油化工股份有限公司 | Method for purifying high-concentration organic waste gas |
| CN204093308U (en) * | 2014-09-26 | 2015-01-14 | 董新良 | A kind of emission-control equipment for coating machine and coating machine |
| CN205042364U (en) * | 2015-08-13 | 2016-02-24 | 中国石油化工股份有限公司 | Low temperature heat accumulation formula catalytic oxidation processing apparatus |
| CN105749695A (en) * | 2016-04-22 | 2016-07-13 | 南京大学环境规划设计研究院有限公司 | Low concentration, large wind volume and high odor waste gas concentration energization equipment and technology thereof |
| CN206810059U (en) * | 2017-04-28 | 2017-12-29 | 广州黑马科技有限公司 | A kind of organic waste gas treatment equipment |
Non-Patent Citations (1)
| Title |
|---|
| 林锦国主编: "过程控制系统·仪表·装置", 东南大学出版社, pages: 282 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432943A (en) * | 2018-12-22 | 2019-03-08 | 江嗣中 | Continuous type organic waste gas catalytic purification apparatus and its operation method |
| CN113144886A (en) * | 2020-12-31 | 2021-07-23 | 杭州谱育科技发展有限公司 | VOCs waste gas treatment system and method |
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