CN105222140B - A kind of exhaust gas purifying method for high-temperature heating device - Google Patents
A kind of exhaust gas purifying method for high-temperature heating device Download PDFInfo
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- CN105222140B CN105222140B CN201510684249.3A CN201510684249A CN105222140B CN 105222140 B CN105222140 B CN 105222140B CN 201510684249 A CN201510684249 A CN 201510684249A CN 105222140 B CN105222140 B CN 105222140B
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- heating device
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Abstract
The invention discloses a kind of waste gas purification apparatus and method for high-temperature heating device, waste gas purification apparatus includes：First purifying part, located at high-temperature heating device inside and carry the first air inlet；Second purifying part, it is connected outside the high-temperature heating device and with the second air inlet being arranged on high-temperature heating device；Blower fan, provide power for the first purifying part and the second purifying part and discharge purified gas.The present invention uses step purification method, and the first purification part is positioned over inside high-temperature heating device, and the part is removed to organic matter；Second purifying part is arranged at outside high-temperature heating device, and inorganic gas is removed, and can purify caused organic exhaust gas in heating process and inorganic waste gases simultaneously, prevents waste gas discharge from being damaged to health and environment.
Description
Technical field
The present invention relates to technical field of waste gas treatment, and in particular to a kind of waste gas purification apparatus for high-temperature heating device
And method.
Background technology
The units such as colleges and universities now, scientific research institutions, factory were waited carrying out scientific research, product manufacturing and catalyst preparation
Determination of elemental analysis and various material calcinations are carried out commonly using high-temperature heating device in journey, the process produces substantial amounts of poisonous
Pernicious gas.Two major classes can be specifically divided to, the first kind is organic pernicious gas, such as：Hydro carbons (benzene,toluene,xylene, first
Aldehyde etc.), halogenated hydrocarbons, aromatic hydrocarbon, polycyclic aromatic hydrocarbons (PAH) etc., this kind of gas is most to have penetrating odor and toxic or hypertoxicity,
There is very big harm to health, be emitted into air, have stimulation to the eye, nose, respiratory tract of people, to the heart, lung, liver etc.
Internal organ and nervous system can also produce adverse effect, or even cause acute and chronic poisoning, can carcinogenic, mutagenesis；Second class is
Inorganic hazardous gas, such as：Nitrogen oxides, sulfur-containing compound, phosphorous oxides and with volatile acid alkaline gas etc., it is this kind of
Gas can also threaten to health and environment, as NO is blood borne poisonous substance in NOx, have strong adhesion with hemoglobin,
Oxygen and hemoglobin are changed into denatured hemoglobin, human body is in anaerobic condition rapidly.NO2Have by force to eyes and paging system
Strong stimulation, when it enters lower respiratory tract, initiation bronchiectasis, in addition toxic pneumonitis and pulmonary edema, the infringement heart,
Liver, the function and hematopoietic tissue of kidney, serious causes death.CO can also be combined with the hemoglobin in blood of human body, be caused
Have difficulty in breathing and then be poisoned；Gaseous state phosphorus pentoxide can enter human body by respiratory tract and skin, short-term a large amount of suctions
Respiratory tract can be stimulated, sphagitis, bronchitis occurs, severe patient occurs laryngeal edema and causes asphyxia.
For pernicious gas caused by high-temperature heating device work, if not imposing control techniques, these harmful substances
Spill into environment or be directly discharged to by stove surrounding all environment and human body will be caused to seriously endanger in air.
Such as the Chinese utility model patent that Authorization Notice No. is CN 203797670U discloses a kind of liquid waste processing
Device, provided with the Muffle furnace for burning waste liquid, the device conveys air into Muffle furnace by air pump through air inlet, and by horse
Not the waste gas in stove is delivered to cooling vessel by blast pipe, and the waste gas of cooling is through pipeline to exhaust-gas treatment container.The patent
It is Sealing Arrangement to highlight Muffle furnace, is supplied and is evacuated with air pump, and the Muffle furnace apparatus in reality is not Sealing Arrangement,
Substantial amounts of waste gas is had when being calcined thing to come out from Muffle furnace surrounding, causes environmental pollution.In addition, the purifier
Individual layer is supplied to Muffle furnace and then extracted out again, causes heat energy loss.
The content of the invention
To solve the technical problem of exhaust emission environment caused by high-temperature heating device heating, the present invention provides a kind of use
In the waste gas purification apparatus and method of high-temperature heating device.
A kind of waste gas purification apparatus for high-temperature heating device, including：
First purifying part, located at high-temperature heating device inside and carry the first air inlet；
Second purifying part, outside the high-temperature heating device and second with being arranged on high-temperature heating device enters
Gas port connects；
Blower fan, provide power for the first purifying part and the second purifying part and discharge purified gas.
Apparatus of the present invention use step purification method, and the first purification part is positioned over inside high-temperature heating device, the part pair
Organic matter is removed；Second purifying part is arranged at outside high-temperature heating device, and inorganic gas is removed, can be by heating process
In caused organic exhaust gas and inorganic waste gases purify simultaneously, prevent waste gas discharge health and environment are damaged.
The performances such as the flow of blower fan, rotating speed, power answer the temperature-control range of suitable high-temperature heating device and rise temperature rate, avoid
Because purification process is slow caused by purification flow rate is small or hair the problems such as purification flow rate causes greatly high-temperature heating device function impacted
It is raw.It is preferred that use resisting blower (100-600 DEG C), flow 1-100m3/h。
First purifying part is mainly used in purifying caused organic pollution in heating process, it is preferred to use high temperature resistant and ratio
The big sorbing material of surface area carries out adsorption treatment.It is therefore preferred that first purifying part is adsorbent equipment, the absorption
Device uses adsorbent as in aluminum oxide, silica, magnesia, calcium oxide, titanium dioxide, high temperature molecular sieve and zeolite
It is at least one.
High temperature molecular sieve is more preferably 5A molecular sieves, 4A molecular sieves, 3A molecular sieves, 10X molecular sieves and 13X molecular sieves
Deng.
It is further preferred that the adsorbent is alchlor, machine thing is adsorbed with for the first purification part.
It is further preferred that adsorbent in first purifying part is shaped as cellular, tabular, graininess and circle
At least one of tubular.It is further preferred that the adsorbent is shaped as cellular or graininess.
For adsorbent equipment sheet as this area conventional absorbtion device, the present invention essentially consists in the adsorbent selection in adsorbent equipment.
Second purifying part is mainly used in the inorganic pollution in removing exhaust gas, it is preferable that second purifying part is
At least one of filter, adsorbent equipment, absorption tower, catalytic purification reactor and plasma reactor.
Filter, adsorbent equipment, absorption tower, catalytic purification reactor and plasma reactor are waste gas purification field
Conventional equipment, using one of which or several combinations.
Most preferably, second purifying part is plasma discharge synergistic sorption purification reactor, including：
Reactor body, one end of the reactor carry air inlet, and the other end carries gas outlet；
Some to electrode in the reactor, each pair electrode is by connecing the high-field electrode of high voltage power supply and connecing for ground connection
Ground electrode forms；
The dielectric-slab being correspondingly arranged between the high-field electrode and grounding electrode of each pair electrode；
The corresponding adsorbent being filled between dielectric-slab.
I.e.：Arranged in parallel between some electrode pairs in reactor body, each pair electrode pair is by connecing the height of high voltage power supply
Piezoelectricity pole and the grounding electrode of ground connection form, and setting two pieces between the high-field electrode and grounding electrode of each pair electrode pair is parallel to each other
The dielectric-slab of setting, adsorbent is filled between two blocks of dielectric-slabs.
Further preferably, the discharge voltage 0.1-1000kV of dielectric impedance reactor of the present invention, frequency 10-
10000Hz；Filler particles thing adsorbent in discharging gap；Adsorbent be activated alumina, magnesia, calcium oxide, oxidation receive, oxygen
Change potassium, the metal oxide such as titanium dioxide and silica, high temperature molecular sieve and the medium at least one of zeolite or its is several
Compound.
Preferably, in addition to the temp controlled meter inside the high-temperature heating device and located at the fan outlet pipeline
On flow control valve, the flow control valve is connected with temp controlled meter.
It is further preferred that also include the refluxing opening on the high-temperature heating device, the export pipeline of the blower fan
Be wherein connected to the refluxing opening all the way.
Flow control valve receives the temperature signal of temp controlled meter and adjusts flow, control discharge according to the temperature signal received
Gas flow be greater than swell increment equal to gas；Second purifying part purified gas controls through flow control valve, and one
Part is discharged, part backflow.Reflux gas carries out heat exchange with purifier air inlet, so as to heat recovery.
Preferably, there is a certain distance between the refluxing opening and the second air inlet, prevent that gas is short-circuit.
Preferably, the high-temperature heating device is Muffle furnace, boiler or baking oven.Most preferably Muffle furnace.
It is additionally provided with the autocontrol valve for controlling the first air inlet and the opening and closing of the second air inlet.
Gas pipeline of the present invention needs corrosion-and high-temp-resistant.
When high-temperature heating device works, starting purifier of the present invention, the first air inlet is opened, the second inlet close,
Waste gas purification apparatus enters the first purification part by the first air inlet, and the adsorbent of the first purification part is to caused by high-temperature heating
Organic and inorganic gas is adsorbed；When heating-up temperature is increased to setting value (50-300 DEG C), pass through autocontrol valve control
The first inlet close is made, the second air inlet is opened, and the organic matter of the first purification partial adsorbates is burned at high temperature to be oxidized to
Harmless carbon dioxide, harmful inorganic matter are desorbed at high temperature.Harmful inorganic gas after desorption is entered by the second air inlet
Purified to the second purifying part.Purified gas controls through flow control valve, part discharge, another part backflow.
Reflux gas carries out heat exchange with purifier air inlet in return duct, so as to heat recovery.
A kind of Muffle furnace for including the waste gas purification apparatus, including Muffle furnace body, the waste gas purification apparatus installation
On Muffle furnace body.Muffle furnace body is conventional Muffle furnace.
When firing equipment is Muffle furnace, the preferred installation site of the first purifying part is the side in Muffle furnace close to top
On wall, the second air inlet is preferably provided at the top of Muffle furnace, and refluxing opening is preferably provided at the top of Muffle furnace and away from the first air inlet
At mouth and the second air inlet.
The present invention also provides a kind of exhaust gas purifying method for high-temperature heating device, comprises the following steps：
(1) waste gas caused by high-temperature heating device heating carries out primary purification in high-temperature heating device, removes heating
During caused organic pollution, the method for the primary purification is absorption, it is sorbent used for aluminum oxide, silica,
At least one of magnesia, calcium oxide, titanium dioxide, high temperature molecular sieve and zeolite；
(2) waste gas after primary purification is delivered to outside high-temperature heating device and carries out double purification, the nothing gone in removing exhaust gas
Organic pollutants, the method for the double purification are at least one in filtering, absorption, absorption, catalytic purification and plasma reaction
Kind；
(3) gas after double purification is back to high-temperature heating through flow control valve metering rear portion discharge, a part
Energy regenerating is carried out in equipment.
Preferably, the flow control valve is according to the temperature regulated flow in high-temperature heating device.
The purification method of the present invention is preferably realized by the waste gas purification apparatus of the present invention.
Preferably, the method for the double purification purifies for plasma discharge synergistic sorption, plasma discharge processing
Discharge voltage 0.1-1000kV, frequency 10-10000Hz；The adsorbent of adsorption cleaning is activated alumina, and its area load
There is CaO.To containing SO2And NOxWaste gas there is good treatment effect.
Preferably, when temperature reaches 200 DEG C and the above in high-temperature heating device, the second purifying part is opened, carries out two
Secondary purification.
The present invention has the advantages that：
In the prior art, the unit such as colleges and universities, scientific research institutions, factory is carrying out scientific research, product manufacturing and catalyst system
Determination of elemental analysis is carried out commonly using high-temperature heating device and various material calcinations, the process produce largely during standby etc.
Toxic and harmful gas, if not imposing control techniques, these harmful substances are spilt into environment or straight by stove surrounding
Connect to be emitted into air all will cause to seriously endanger to environment and human body.
The present invention uses step purification method, and the first purification part is positioned over inside high-temperature heating device, and the part is to organic
Thing is removed；Second purifying part is arranged at outside high-temperature heating device, and inorganic gas is removed, and will can be produced in heating process
Raw organic exhaust gas and inorganic waste gases purifies simultaneously, prevents waste gas discharge from being damaged to health and environment.
Brief description of the drawings
Fig. 1 is the structural representation of waste gas purification apparatus of the present invention.
Fig. 2 is the structural representation of the second purifying part of the invention.
Fig. 3 is the treatment effect figure of embodiment 1.
Fig. 4 is the treatment effect figure of embodiment 2.
Reference is as follows shown in figure：
1- the first air inlet 2- the second air inlet the first purifying parts of 3-
4- the second purifying part 5- blower fan 6- flow control valves
7- exhaust outlet 8- refluxing opening 9- high-temperature heating device bodies
10- return duct 11- autocontrol valve 4-1- high-field electrodes
4-2- grounding electrode 4-3- adsorbent 4-4- dielectric-slabs
4-5- electrode pair 4-6- reactor bodies.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Apply example to be only used for explaining the present invention, be not intended to limit the present invention.
The purifier of the present invention is as shown in figure 1, including high-temperature heating device body 9, the high-temperature heating device body is
Laboratory conventional high temperature firing equipment, such as Muffle furnace, (by taking Muffle furnace as an example, are preferably provided with inside the high-temperature heating device
In Muffle furnace in the side wall at top) the first purifying part 3 is set, the first purifying part carries the first air inlet 1, this reality
Apply in mode, the first purifying part is adsorbent equipment, and adsorbent equipment can use conventional absorbtion device in itself, the suction in adsorbent equipment
Attached dose is at least one in activated alumina, silica, magnesia, calcium oxide, titanium dioxide, high temperature molecular sieve and zeolite
Kind, it is preferably activated alumina in present embodiment.
Second air inlet 2 and refluxing opening 6 are set at the top of high-temperature heating device body 9, in high-temperature heating device body 9
Outside sets the second purifying part 4, and the air inlet of the second purifying part is connected with the second air inlet 2, and the second purifying part was
At least one of filter, adsorbent equipment, absorption tower, catalytic purification reactor and plasma reactor, filter, absorption dress
Put, absorption tower, catalytic purification reactor and plasma reactor be waste gas purification field conventional equipment, the first air inlet
Start and close to control by autocontrol valve 11 with the second air inlet.
In present embodiment, the second purifying part preferably uses dielectric impedance reactor, structural representation as shown in Fig. 2
Including reactor body 4-6, one end of reactor carries air inlet, and the other end carries gas outlet.Some electrodes in reactor
To arranged in parallel between 4-5, each electrode moves towards parallel with gas, and each pair electrode pair is by connecing the high-tension electricity of high voltage power supply
Pole 4-1 and the grounding electrode 4-2 of ground connection are formed, and two pieces of setting is mutually flat between the high-field electrode and grounding electrode of each pair electrode pair
The dielectric-slab 4-4 that row is set, adsorbent 4-3 is filled between two blocks of dielectric-slabs, adsorbent is the activated alumina for being loaded with CaO
Ball.
The discharge voltage 0.1-1000kV of dielectric impedance reactor, frequency 10-10000Hz；Filler particles in discharging gap
Thing adsorbent.
A Fans 5, the purifying part of blower fan 5 and first and the second purification are also set up outside high-temperature heating device body 9
Part connects, and enters for waste gas and power is provided in the first purifying part or the second purifying part, and the second purifying part is purified
Gas afterwards is discharged, and flow control valve 6 is set on the export pipeline of blower fan 5, and the gas after being measured by flow control valve divides two-way,
It is exhaust outlet 7 all the way, a route return duct 10 is connected to refluxing opening 8.Purified gas controls through flow control valve, a part
Discharge, another part backflow.Reflux gas carries out heat exchange with purifier air inlet, so as to heat recovery.
Electroheat pair is connected to inside high-temperature heating device simultaneously, electroheat pair temperature sensor passes to temp controlled meter, flow control
Valve is connected with temp controlled meter, is received the temperature information of temp controlled meter and is adjusted flow based on this.
By taking Muffle furnace as an example, when Muffle furnace starts, controller valve opens the air inlet of waste gas purification apparatus first
Open, the second inlet close, now caused organic and inorganic waste gases are entered the first purification portion by the first air inlet in stove
Point, carry out adsorption cleaning in the first purification part；When heating-up temperature is increased to setting value, such as 200 DEG C, the first inlet close,
Second air inlet open, first purification partial adsorbates organic matter temperature rise after at a high temperature of be burned be oxidized to it is harmless
Carbon dioxide, meanwhile, harmful inorganic matter of the first purification partial adsorbates is desorbed at high temperature.Inorganic gas after desorption is by the 2nd
Air inlet is purified into the second purifying part, and the second purifying part is purified for electric discharge synergistic sorption.(for roasting
When reagent raw material is nitrate or sulfate, caused waste gas is SO in roasting process2And NOx, now second purifying part
Sorbing material is the activated alumina ball particle for being loaded with calcium oxide, and strong oxidizing property active material such as O and OH are produced under electric discharge
With SO2And NOXCalcium oxide reaction is CaSO4And CaNO3.) purified gas controls through flow control valve, part discharge, separately
Part backflow.Reflux gas carries out heat exchange with purifier air inlet, so as to heat recovery
The organic exhaust gas of embodiment 1 and mineral acid waste gas purification)
With cleaning catalyst MnOX/TiO2In Muffle furnace roasting process exemplified by caused waste gas.
Catalyst MnOX/TiO2It is made with sol-gel process, reagent used is：Tetrabutyl titanate, ethanol, water, acetic acid
And manganese nitrate.Producing process：It is stirred at room temperature uniformly, forms yellow sol.The stable a few days, treat that colloidal sol is converted into gel
Afterwards, gel is dried into 12h at 100 DEG C, obtains a porosu solid, be then calcined 6h at 600 DEG C in Muffle furnace, you can
To catalyst MnOX/TiO2。
Producing catalyst MnOX/TiO2Drying roasting process in, when opening Muffle furnace, purifier is opened simultaneously, the
One air inlet is opened (the first purification partial interior fills activated alumina), the second inlet close, and second is produced in heating process
The volatilization gas such as alcohol, acetic acid are entered by the first air inlet, and are inhaled in the first purification part of purifier by active oxidation aluminium ball
Attached purification.As in-furnace temperature raises, when temperature is higher than 200 DEG C, control valve opens the first inlet close, the second air inlet
Open, now in stove caused gas with inorganic gas NO2Based on, NO2It is directly entered the second purifying part and is cleaned (the second purification
Part is filled with CaO-Al2O3).Purified gas part discharge, a part are back in stove.As heating is carried out, when
After in-furnace temperature is more than 500 DEG C, the organic matter that the adsorbent of the first purification part absorbs is oxidized burning as nothings such as carbon dioxide
Evil gas, meanwhile, the inorganic gas that first purification partially absorbs is desorbed, and the inorganic gas after desorption is entered by the second air inlet
Second purifying part is discharged synergistic sorption and purified.
Detected respectively in exit and be not added with adsorption particle and plus adsorption particle exhaust gas concentration value.
As shown in figure 3, when non-purified, the maximum concentration of ethanol can reach 850.39mg/m3, NO2Cmax can reach
To 126.05mg/m3, adsorbent, and the electric discharge electricity of the second purifying part are put into the second purifying part when the first purification part
Press as 8kV, frequency 50Hz, 96.73% can reach to ethanol single purifying rate, to NO2Single purifying rate is up to 98.86%.
Embodiment 2 (inorganic alkaline waste gas purification)
By cleaning catalyst Ni-Mo-W in Muffle furnace roasting process exemplified by caused waste gas.
Ammonium molybdate and metatungstic acid ammonia are dissolved in water, ammoniacal liquor is added dropwise and adjusts pH to appropriate value, and is heated to certain temperature,
Obtain solution A.By nickel nitrate it is soluble in water and be heated to solution A identical temperature, obtain solution B.Solution B is slowly added dropwise
Into solution A, rear arrest reaction is added dropwise for a period of time.Then solution filtered, washed, dried, be calcined after be catalyzed
Agent Ni-Mo-W type catalyst.Dried at this and can produce inorganic hazardous gas NH in roasting process3。
In catalyst n i-Mo-W drying roasting process is produced, in dry and roasting process, purifier and Muffle
Stove is opened simultaneously, now only inorganic waste gases-NH3Produce, so, the gas in Muffle furnace directly enters from the second air inlet
To the second purifying part, purified in the second purifying part by the synergistic sorption that discharges.
Detect the concentration value not purified with waste gas after purification respectively in exit.
As shown in figure 4, when non-purified, NH3Maximum concentration can reach 750mg/m3, the waste gas enters through blower fan
Two purifying parts, the second purifying part of regulation are discharged to 5kV, frequency 30Hz, NH3In the putting filled with active oxidation aluminium ball
Electric region is oxidized to harmless N2, now, NH3Clearance reached 98.13%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (4)
1. a kind of exhaust gas purifying method for high-temperature heating device, it is characterised in that comprise the following steps：
(1) waste gas caused by high-temperature heating device heating carries out primary purification in high-temperature heating device, removes heating process
In caused organic pollution, the method for the primary purification is absorption, sorbent used for aluminum oxide, silica, oxidation
At least one of magnesium, calcium oxide, titanium dioxide, high temperature molecular sieve and zeolite；
(2) waste gas after primary purification is delivered to outside high-temperature heating device and carries out double purification, the inorganic dirt gone in removing exhaust gas
Thing is contaminated, the method for the double purification is absorption and the combination of plasma reaction；
(3) gas after double purification is back to high-temperature heating device through flow control valve metering rear portion discharge, a part
Interior carry out energy regenerating；
The waste gas purification apparatus of the exhaust gas purifying method is realized, including：
First purifying part, located at high-temperature heating device inside and carry the first air inlet；
Second purifying part, located at high-temperature heating device outside and the second air inlet with being arranged on high-temperature heating device
Connection；
Blower fan, provide power for the first purifying part and the second purifying part and discharge purified gas；
First purifying part is adsorbent equipment, and the adsorbent equipment uses adsorbent as aluminum oxide, silica, oxidation
At least one of magnesium, calcium oxide, titanium dioxide, high temperature molecular sieve and zeolite；
Second purifying part is plasma discharge synergistic sorption purification reactor, including：
Reactor body, one end of the reactor carry air inlet, and the other end carries gas outlet；
Some to electrode in the reactor, each pair electrode is by connecing the high-field electrode of high voltage power supply and the ground connection electricity of ground connection
Pole forms；
The dielectric-slab being correspondingly arranged between the high-field electrode and grounding electrode of each pair electrode；
The corresponding adsorbent being filled between dielectric-slab；
The discharge voltage 0.1-1000kV, frequency 10-10000Hz of plasma discharge processing；
The high-temperature heating device is Muffle furnace.
2. it is used for the exhaust gas purifying method of high-temperature heating device according to claim 1, it is characterised in that also include being located at institute
State the temp controlled meter inside high-temperature heating device and the flow control valve on the fan outlet pipeline, the flow control
Valve is connected with temp controlled meter.
3. it is used for the exhaust gas purifying method of high-temperature heating device according to claim 1, it is characterised in that also include being located at institute
The refluxing opening on high-temperature heating device is stated, the export pipeline of the blower fan is wherein connected to the refluxing opening all the way.
4. it is used for the exhaust gas purifying method of high-temperature heating device according to claim 1, it is characterised in that be additionally provided with for controlling
Make the first air inlet and the autocontrol valve of the second air inlet opening and closing.
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| CN201510684249.3A CN105222140B (en) | 2015-10-20 | 2015-10-20 | A kind of exhaust gas purifying method for high-temperature heating device |
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|---|---|---|---|
| CN201510684249.3A CN105222140B (en) | 2015-10-20 | 2015-10-20 | A kind of exhaust gas purifying method for high-temperature heating device |
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| CN105222140B true CN105222140B (en) | 2018-02-23 |
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| WO2018039868A1 (en) * | 2016-08-29 | 2018-03-08 | 赵莹颖 | Plasma air purifying device |
| CN110496504A (en) * | 2019-09-11 | 2019-11-26 | 安吉润风空气净化科技有限公司 | A kind of gas cleaning plant and method for gas purification |
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| JP2007309535A (en) * | 2006-05-16 | 2007-11-29 | Daido Steel Co Ltd | Exhaust gas treatment device for metal scrap melting furnace |
| CN101209442A (en) * | 2007-12-25 | 2008-07-02 | 谢祯礼 | Over-sprayed paint fog cleaning and recycling using in coating production |
| CN101270877B (en) * | 2008-04-14 | 2010-08-11 | 郑振国 | Water-proof coiled material flue gas processing equipment |
| CN102269530A (en) * | 2011-08-26 | 2011-12-07 | 西南铝业（集团）有限责任公司 | Furnace temperature control method and furnace temperature control device |
| CN202410221U (en) * | 2012-01-17 | 2012-09-05 | 青岛华世洁环保科技有限公司 | Device for recovering and incinerating solvent and comprehensively utilizing energy in drying workshop on coating production line |
| CN102728193B (en) * | 2012-06-15 | 2014-04-30 | 西安建筑科技大学 | Low temperature plasma integrated purification plant and method for industrial organic waste gas |
| CN203797670U (en) * | 2014-02-14 | 2014-08-27 | 国家电网公司 | Liquid waste treatment device |
| CN205279101U (en) * | 2015-10-20 | 2016-06-01 | 浙江工商大学 | A exhaust gas purification device for high temperature heating equipment |
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