CN208426836U - Organic waste gas treatment system - Google Patents
Organic waste gas treatment system Download PDFInfo
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- CN208426836U CN208426836U CN201820770947.4U CN201820770947U CN208426836U CN 208426836 U CN208426836 U CN 208426836U CN 201820770947 U CN201820770947 U CN 201820770947U CN 208426836 U CN208426836 U CN 208426836U
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Abstract
The utility model provides a kind of organic waste gas treatment system, including preprocessor, adsorption tower, blower is desorbed, main air blower, preprocessor and controller is desorbed, the outlet of preprocessor is connected by the first entrance of the first intake stack and adsorption tower, blower is desorbed to connect by the second entrance of the second intake stack and adsorption tower, main air blower is connected by the first outlet of the first wind pipe and adsorption tower, activated carbon fibre is provided in adsorption tower, the entrance of desorption preprocessor is connect by the second wind pipe with the second outlet of the adsorption tower, the first motor-driven valve is provided on first intake stack and the first wind pipe, the second motor-driven valve is provided on second intake stack and the second wind pipe, the desorption blower, main air blower, first motor-driven valve and the second motor-driven valve are connect with the controller.The organic waste gas treatment system uses modularized design, and operating cost is low, and volatile organic matter purification efficiency is high.
Description
Technical field
The utility model relates to technical field of waste gas treatment, and more specifically, the utility model relates to a kind of organic exhaust gas
Processing system.
Background technique
Volatile organic matter refers to that saturated vapour pressure is greater than 70.91Pa at room temperature, and boiling point is less than 260 DEG C under room temperature
Organic compound.From the perspective of environmental monitoring, refer to the non-methane hydrocarbon recognizate detected with oxygen flame ionic detector
General name, mainly include alkanes, aromatic hydrocarbons, olefines, halohydrocarbon, esters, aldehydes, ketone and other organic compounds are waved
Hair property organic matter (Volatile Organic Compounds；VOCs the secondary pollutions such as fine particle, ozone) are formed
Important as precursors object, the processing work of VOCs are always an arduous complicated task.
For the VOCs gas of low concentration, Wind Volume, actual conditions are considered in VOCs processing, can not be used direct-fired
Waste gas burning furnace (Thermal Oxidizer；TO) heat accumulation type thermal oxidation technology (Regenerative Thermal
Oxidizer；RTO), heat accumulating type catalytic combustion method (Regenerative Catalytic Oxidation；RCO) etc. efficient
Processing mode, the processing mode of selection only have the processing techniques such as photochemical catalytic oxidation, plasma, activated carbon adsorption or with concentration plus combustions
It burns, the combined technology for adding multi-stage condensing is concentrated.
On treatment effeciency, single TO, RTO, RCO technical treatment VOCs efficiency most operating conditions are difficult be more than
60%；Although the treatment effeciency of activated carbon adsorption is easily saturated, must often update up to 90%, not only costly, and causes
Secondary pollution；In the combination technique of adsorption desorption concentration plus burning (or multi-stage condensing recycling), although burning (or multi-stage condensing is returned
Receive) efficiency can reach 99% or more, but the gas containing VOCs is the direct emission after adsorption desorption device, is only desorbed gas
(or multi-stage condensing recycling) can be just burned by taking VOCs gas out of, therefore the treatment effeciency of complete equipment is not depend on burning
The efficiency of (or multi-stage condensing recycling), but depend on the adsorption efficiency of absorbing process in adsorption desorption equipment, Wind Volume adsorption desorption
Highest adsorption efficiency of the device in industrial application is 90% or so, i.e. adsorption desorption concentration plus burning (or multi-stage condensing recycling group
Conjunction technology) maximum removal efficiency be also 90% or so.
Utility model content
The utility model provides a kind of organic waste gas treatment system, which uses modularized design,
Operating cost is low, and volatile organic matter purification efficiency is high.
The utility model is achieved through the following technical solutions:
The utility model provides a kind of organic waste gas treatment system, including preprocessor, adsorption tower, desorption blower, main wind
Machine, desorption preprocessor and controller；
The outlet of the preprocessor is connect by the first intake stack with the first entrance of the adsorption tower, the desorption
Blower is connect by the second intake stack with the second entrance of the adsorption tower, and the main air blower passes through the first wind pipe and institute
The first outlet connection of adsorption tower is stated, activated carbon fibre is provided in the adsorption tower, the entrance of the desorption preprocessor is logical
The second wind pipe is crossed to connect with the second outlet of the adsorption tower；
Be provided with the first motor-driven valve on first intake stack and the first wind pipe, second intake stack and
The second motor-driven valve is provided on second wind pipe, the desorption blower, main air blower, the first motor-driven valve and the second motor-driven valve are equal
It is electrically connected with the controller.
Organic waste gas treatment system as described above is provided with the first concentration mensuration instrument or described in first exhaust passage
It is provided with pressure detecting instrument in first intake stack and the first wind pipe, is provided with temperature measuring in second air inlet duct
Instrument is provided with the second concentration mensuration instrument in second exhaust passage, and the first concentration mensuration instrument, temperature-indicating instrument and second are dense
Degree analyzer is connect with the controller.
The specific surface area of the activated carbon fibre is greater than 2000m2The iodine sorption value of/g, the activated carbon fibre are greater than
1600mg/g。
Organic waste gas treatment system as described above, the exhaust treatment system include multiple adsorption towers.
Organic waste gas treatment system as described above, the desorption preprocessor are condensate recycling device, the condensing recovery
It is connected between the entrance of device and the second outlet of the adsorption tower by second wind pipe.
Organic waste gas treatment system as described above is provided with catalytic treatment between the preprocessor and the adsorption tower
Device.
Organic waste gas treatment system as described above, the desorption preprocessor be burner, the entrance of the burner with
It is connected between the second outlet of the adsorption tower by second wind pipe, the outlet of the burner and the adsorption tower
Second entrance between by second air inlet duct connect.
Organic waste gas treatment system as described above is provided with third concentration mensuration instrument in second wind pipe, described
Third concentration mensuration instrument is connect with the controller.
Organic waste gas treatment system as described above is provided with benefit air-cooler, the benefit cold wind on second intake stack
Machine is connect with the controller.
Organic waste gas treatment system as described above, the exhaust treatment system further include flame-retardant device, the flame-retardant device setting
In second intake stack and the second wind pipe.
Organic waste gas treatment system provided by the utility model uses modularized design, and preprocessor carries out organic exhaust gas
Pretreatment carries out adsorption treatment to organic exhaust gas by the first intake stack, adsorption tower, the first wind pipe and main air blower, leads to
It crosses the second intake stack, desorption blower, the second wind pipe and desorption processing is carried out to the active carbon in adsorption tower, after desorption
Processor handles the organic exhaust gas after desorption, and activated carbon fibre, more traditional work are provided in the utility model adsorption tower
Property charcoal adsorption capacity is strong；The high degree of automation of the utility model organic waste gas treatment system passes through the first electricity of controller control
Dynamic valve is opened, the second motor-driven valve closes starting adsorption treatment program, by controller control the first motor-driven valve close, it is second electronic
Valve is on desorption processing routine.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is organic waste gas treatment system exhaust-gas treatment process figure provided by the embodiment of the utility model；
Fig. 2 is organic waste gas treatment system exhaust-gas treatment process figure provided by the embodiment of the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Term " includes " and " having " and their any change in the specification and claims of the utility model
Shape, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, product
Or equipment those of is not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these
The intrinsic other step or units of process, method, product or equipment.
Term " first ", " second " are used for description purposes only in the description of the present invention, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic.In the description of the present invention, unless
It is otherwise noted, the meaning of " plurality " is two or more.
For the VOCs gas of low concentration, Wind Volume, it is contemplated that actual conditions, can not use can not use TO, RTO, RCO)
Etc. efficient processing mode, the processing mode of selection only have the processing techniques such as photochemical catalytic oxidation, plasma, activated carbon adsorption or with
The combined technology of concentration plus burning, concentration plus multi-stage condensing.On treatment effeciency, single high energy technical treatment VOCs efficiency pair
It is difficult to be more than 60% in most operating conditions；Although activated carbon adsorption efficiency is easily saturated, must often update up to 90%,
It is not only costly, and cause solid waste secondary pollution；In the combination technique of adsorption desorption concentration plus burning (or multi-stage condensing recycling),
Although burning (or multi-stage condensing recycling) efficiency can reach 99% or more, the gas containing VOCs is straight after adsorption desorption device
Run in and put, being only desorbed gas and taking VOCs gas out of can just be burned (or multi-stage condensing recycling), therefore the place of complete equipment
Reason efficiency is not depend on the efficiency of burning (or multi-stage condensing recycling), but depends on absorbing process in adsorption desorption equipment
Adsorption efficiency, highest adsorption efficiency of the Wind Volume adsorption desorption device in industrial application are 90% or so, i.e. adsorption desorption concentration adds
The maximum removal efficiency of burning (or multi-stage condensing recycling combination technique) is also 90% or so.
The utility model is based on problem above, provides that a kind of operating cost is low, and volatile organic matter purification efficiency is high to be had
Machine exhaust treatment system.
It describes in detail combined with specific embodiments below to organic waste gas treatment system provided by the utility model.
Embodiment one:
Fig. 1 is the structural schematic diagram of gearshift provided by the embodiment of the utility model, please refers to this implementation shown in Fig. 1
The organic waste gas treatment system that example provides includes preprocessor 1, adsorption tower 2, desorption blower 3, main air blower 4, desorption preprocessor 5
And controller；The outlet of the preprocessor 1 is connect by the first intake stack with the first entrance of the adsorption tower 2, described
Activated carbon fibre is provided in adsorption tower 2, the desorption blower 3 passes through the second entrance of the second intake stack and the adsorption tower
Connection, the main air blower 4 are connect by the first wind pipe with the first outlet of the adsorption tower, the desorption preprocessor 5
It is connect by the second exhaust passage with the second outlet of the adsorption tower 2；
Be provided with the first motor-driven valve on first intake stack and the first wind pipe, second intake stack and
The second motor-driven valve, the desorption blower 3, main air blower 4, the first motor-driven valve and the second motor-driven valve are provided on second wind pipe
It is electrically connected with the controller.
For pre-processing to organic exhaust gas, the adsorption tower 2 is used for institute preprocessor 1 described in the present embodiment
State preprocessor 1 treated that organic exhaust gas carries out activated carbon adsorption processing, the desorption blower 3 is for the adsorption tower 2
Interior organic exhaust gas carries out desorption processing, after the desorption preprocessor 5 is used to carry out the exhaust gas of the desorption processing
The settable different form according to actual needs of preprocessor 5 is desorbed in reason, and the main air blower 4 is for after being discharged adsorption treatment
Exhaust gas, the controller are used to control adsorption process and the switching of program are desorbed and the start and stop of preprocessor are desorbed.
Organic waste gas treatment system provided by the utility model uses modularized design, and preprocessor carries out organic exhaust gas
Pretreatment carries out adsorption treatment to organic exhaust gas by the first intake stack, adsorption tower, the first wind pipe and main air blower, leads to
It crosses the second intake stack, desorption blower, the second wind pipe and desorption processing is carried out to the active carbon in adsorption tower, after desorption
Processor handles the organic exhaust gas after desorption, and activated carbon fibre, more traditional work are provided in the utility model adsorption tower
Property charcoal adsorption capacity is strong；The high degree of automation of the utility model organic waste gas treatment system passes through the first electricity of controller control
Dynamic valve is opened, the second motor-driven valve closes starting adsorption treatment program, by controller control the first motor-driven valve close, it is second electronic
Valve is on desorption processing routine.
In the present embodiment, the first concentration mensuration instrument, setting in second air inlet duct are provided in first exhaust passage
There is the first temperature-indicating instrument, the second concentration mensuration instrument, the first concentration mensuration instrument, first are provided in second exhaust passage
Temperature-indicating instrument and the second concentration mensuration instrument are connect with the controller.By being provided with the first concentration in the first exhaust passage
Analyzer, when the concentration for the organic exhaust gas that the first concentration mensuration instrument detects reaches preset value, controller control first is electronic
Valve is closed, and the second motor-driven valve opening carries out desorption processing to the activated carbon fibre in adsorption tower.It certainly can also be by described
Pressure detecting instrument is arranged on first intake stack and the first wind pipe to detect on the first intake stack and the first wind pipe
Pressure come realize to desorption program control.By the way that the second concentration mensuration instrument is arranged in the second exhaust passage, when the second concentration is surveyed
The temperature for the desorption gas that the concentration and the first temperature-indicating instrument for determining the desorption gas that instrument detects detect reaches preset value
When, controller controls the first motor-driven valve and opens, and the activated carbon fibre that the second motor-driven valve is closed in adsorption tower 2 carries out organic exhaust gas
Adsorption treatment.
In the present embodiment, activated carbon fibre is provided in the adsorption tower 2, the specific surface area of the activated carbon fibre is greater than
2000m2The iodine sorption value of/g, the activated carbon fibre are greater than 1600mg/g.Using in the present embodiment has superabsorbant energy
Activated carbon fibre, exhaust gas cycles of concentration can reach 50 times, and to the organic gas of 10Wm3/h, air quantity, which is desorbed, be can control
Within 2000m3/h, secondly, 98% or more can be reduced by the content of VOCs in the air that after the equipment, emits.
In the present embodiment, the exhaust treatment system includes two adsorption towers 2.When an adsorption tower carries out desorption and regeneration
When, another adsorption tower carries out absorption work, and in other embodiments, adsorption tower 2 can be set multiple, one of them is taken off
Attached regeneration, remaining carries out absorption work.
In the present embodiment, the desorption preprocessor 5 is condensate recycling device, the import of the condensate recycling device and institute
It states and is connected between the second outlet of adsorption tower 2 by second exhaust passage.The organic waste gas treatment system of the present embodiment passes through
Condensate recycling device is set, waste gas recovery is recycled.
The organic waste gas treatment system of the present embodiment, which is suitable for exhaust gas, has recovery value, scene to have the items such as wastewater treatment equipment
Part, equipment investment is low, operation cost is low, and exhaust gas is recyclable to be recycled, and safety coefficient is high, and purification efficiency is high.
Embodiment two:
Fig. 2 is the structural schematic diagram of gearshift provided by the embodiment of the utility model, please refers to this implementation shown in Fig. 2
Example is provided with Catalytic processor 6, preprocessor 1 unlike embodiment one between the present embodiment preprocessor 1 and adsorption tower 2
Outlet connect with the entrance of Catalytic processor 6, the outlet of Catalytic processor 6 pass through the first intake stack and adsorption tower 2 the
The connection of one entrance, is provided with activated carbon fibre in the adsorption tower 2, and desorption blower 3 passes through the second intake stack and adsorption tower
Second entrance connection, main air blower 4 are connect by the first wind pipe with the first outlet of adsorption tower 2, and desorption preprocessor 5 passes through
The second outlet of second exhaust passage and adsorption tower connects, and is provided with first on first intake stack and the first wind pipe
Motor-driven valve is provided with the second motor-driven valve, the desorption blower 3, main wind on second intake stack and the second wind pipe
Machine 4, the first motor-driven valve and the second motor-driven valve are electrically connected with the controller.
Organic waste gas treatment system provided by the utility model, the organic waste gas treatment system use modularized design, have
The purification efficiency of machine exhaust gas is high, and preprocessor pre-processes organic exhaust gas, and Catalytic processor to pretreated for having
Machine exhaust gas carries out photocatalysis treatment, activated carbon fibre is provided in the utility model adsorption tower, compared with conventional carbon adsorption capacity
By force, adsorption treatment is carried out to organic exhaust gas by the first intake stack, adsorption tower, the first wind pipe and main air blower, by the
Two intake stacks, desorption blower, the second wind pipe carry out desorption processing to the active carbon in adsorption tower, are post-processed by desorption
Device handles the organic exhaust gas after desorption；The high degree of automation of the utility model organic waste gas treatment system passes through control
Device processed controls adsorption treatment program when the first valve is opened, the second valve is closed and starts, and controls the first valve by controller and closes
Close, the second valve open when desorption processing routine starting.
In the present embodiment, disassembly and assembling, pass through between the preprocessor 1 and the Catalytic processor 6 for convenience
Dismountable pipeline connection, first intake stack, the second intake stack, the first wind pipe and second exhaust passage are equal
To be detachably connected pipeline.
In the present embodiment, activated carbon fibre is provided in the adsorption tower 2, the specific surface area of activated carbon fibre is greater than
2000m2The iodine sorption value of/g, activated carbon fibre are greater than 1600mg/g.Big (the ratio of carbon fiber adsorption and catalytic combustion capacity in the present embodiment
Granular active carbon is several times greater to tens times), adsorption rate is fast (2~3 orders of magnitude faster than granular activated carbon), and regenerates and hold
Quickly (general 15~30min), easily, desorption thoroughly, still keeps original absorption property, therefore right after multiple adsorption/desorption
The purifying rate of organic exhaust gas is high；Simultaneously because activated carbon fibre heat resistance is good (ignition point is up to 500 DEG C or more in air), and inhale
Attached layer is very thin, will not generate similar particle charcoal or honeycomb briquet adsorbent equipment is also easy to produce the danger of combustion explosion because of heat accumulation.Have
Machine exhaust gas is carrying out activated carbon adsorption processing after pretreatment and photocatalysis treatment, then to exhaust gas, and remaining volatility is organic
Object is adsorbed in activated carbon fibre, the clean air up to standard of finally discharge.Due to the volatile organic matter after photocatalysis treatment
Concentration reduced 50~70% or so, the exhaust gas content of organics more directly excluded substantially reduces, and inhales by active carbon
The concentration of the organic matter of attached residual on the activated carbon is opposite to be greatly reduced, and extend active carbon uses the time, reduces
The process of replacement active carbon, and can be reduced using the content that this combination is discharged into the volatile organic matter in air
98% or more.
In the present embodiment, the desorption preprocessor 5 is burner, the of the import of the burner and the adsorption tower
It is connected between two outlets by second exhaust passage.In terms of exhaust after-treatment, when existing desorption after-combustion exhaust gas, in order to
Desorption cost is reduced, the technology for being typically chosen this heat-accumulation combustion of RTO/RCO is mating to do, and the operating cost of RTO and RCO are huge
Greatly, the waste gas pollution control and treatment equipment of 10Wm3/h needs the RTO/RCO of mating 1.0Wm3/h, and only natural gas and electricity charge spending, just reach 200
Ten thousand yuan/year or more, since the concentration of VOCs is high, air quantity is small, and the organic waste gas treatment system of the utility model is small using stopping
Type burner, cost of use, which is reduced, adds the 1/5 of combustion technology less than Adsorption Concentration.
Further, third concentration mensuration instrument is provided in the second wind pipe connecting with burner, the third is dense
Degree analyzer is connect with the controller, by being provided with third concentration mensuration instrument in the second wind pipe, into burner
The concentration of organic exhaust gas detected, when the concentration of organic exhaust gas is higher than lower explosion limit, controller turns desorption blower down
Frequency reduces the concentration of organic exhaust gas in burner, avoids that explosion danger occurs.
Temperature-indicating instrument and benefit are provided on the second intake stack that the outlet of the burner is connect with the adsorption tower
Air-cooler 7, the temperature-indicating instrument and benefit air-cooler 7 are connect with the controller.In desorption process mend air-cooler according to
Temperature-indicating instrument detection is adjusted into the waste hot gas temperature of adsorption tower 2, and when temperature is higher than preset value, controller control is mended
Air-cooler work supplement cold wind.
The exhaust treatment system further includes flame-retardant device 8, and the flame-retardant device 8 is arranged in second intake stack and second
In wind pipe.By the way that flame-retardant device 8 is arranged, the safety of whole system is improved.
The exhaust treatment system of the present embodiment is suitable for the industry field of exhaust gas non-recovery value, and the exhaust gas of post-processing is desorbed
Handled through burner combustion, and the thermal energy of waste gas burning can also be used to desorption treatment process in thermal energy supply, operation at
This is low, and safety coefficient is high, and purification efficiency is high.
The above various embodiments is only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned
The utility model is described in detail in each embodiment, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments, or some or all of the technical features is equal
Replacement；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution various embodiments of the utility model technical side
The range of case.
Claims (10)
1. a kind of organic waste gas treatment system, which is characterized in that
Including preprocessor, adsorption tower, desorption blower, main air blower, desorption preprocessor and controller；
The outlet of the preprocessor is connect by the first intake stack with the first entrance of the adsorption tower, the desorption blower
It is connect by the second intake stack with the second entrance of the adsorption tower, the main air blower passes through the first wind pipe and the suction
The first outlet of attached tower connects, and is provided with activated carbon fibre in the adsorption tower, and the entrance of the desorption preprocessor passes through the
Two wind pipes are connect with the second outlet of the adsorption tower；
The first motor-driven valve, second intake stack and second are provided on first intake stack and the first wind pipe
It is provided with the second motor-driven valve on wind pipe, the desorption blower, main air blower, the first motor-driven valve and the second motor-driven valve are and institute
State controller electrical connection.
2. organic waste gas treatment system according to claim 1, it is characterised in that:
It is provided in first exhaust passage in the first concentration mensuration instrument or first intake stack and the first wind pipe
It is provided with pressure detecting instrument, temperature-indicating instrument is provided in second air inlet duct, is provided in second exhaust passage
Two concentration mensuration instrument, the first concentration mensuration instrument, temperature-indicating instrument and the second concentration mensuration instrument are connect with the controller.
3. organic waste gas treatment system according to claim 2, it is characterised in that: the specific surface area of the activated carbon fibre
Greater than 2000m2The iodine sorption value of/g, the activated carbon fibre are greater than 1600mg/g.
4. organic waste gas treatment system according to claim 3, it is characterised in that:
The exhaust treatment system includes multiple adsorption towers.
5. organic waste gas treatment system according to claim 4, it is characterised in that: the desorption preprocessor is to be condensed back to
Receiving apparatus is connected between the entrance of the condensate recycling device and the second outlet of the adsorption tower by second wind pipe
It connects.
6. organic waste gas treatment system according to claim 4, it is characterised in that: the preprocessor and the adsorption tower
Between be provided with Catalytic processor.
7. organic waste gas treatment system according to claim 6, it is characterised in that:
The desorption preprocessor is burner, passes through institute between the entrance of the burner and the second outlet of the adsorption tower
The connection of the second wind pipe is stated, is entered the wind between the outlet of the burner and the second entrance of the adsorption tower by described second
Road connection.
8. organic waste gas treatment system according to claim 7, it is characterised in that:
Third concentration mensuration instrument is provided in second wind pipe, the third concentration mensuration instrument and the controller connect
It connects.
9. organic waste gas treatment system according to claim 8, it is characterised in that: be provided on second intake stack
Air-cooler is mended, the benefit air-cooler is connect with the controller.
10. organic waste gas treatment system according to claim 9, it is characterised in that: the exhaust treatment system further includes
Flame-retardant device, the flame-retardant device are arranged in second intake stack and second wind pipe.
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| CN201820770947.4U CN208426836U (en) | 2018-05-23 | 2018-05-23 | Organic waste gas treatment system |
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| CN201820770947.4U CN208426836U (en) | 2018-05-23 | 2018-05-23 | Organic waste gas treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108434926A (en) * | 2018-05-23 | 2018-08-24 | 厦门恒绿环保工业有限公司 | Organic waste gas treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108434926A (en) * | 2018-05-23 | 2018-08-24 | 厦门恒绿环保工业有限公司 | Organic waste gas treatment system |
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