CN109915839A - A kind of vertical danger waste treatment equipment - Google Patents
A kind of vertical danger waste treatment equipment Download PDFInfo
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- CN109915839A CN109915839A CN201910218354.6A CN201910218354A CN109915839A CN 109915839 A CN109915839 A CN 109915839A CN 201910218354 A CN201910218354 A CN 201910218354A CN 109915839 A CN109915839 A CN 109915839A
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Abstract
It the invention discloses a kind of vertical danger waste treatment equipment, mainly solves existing burning disposal temperature existing in the prior art burning is not achieved temperature is needed to be also easy to produce poisonous and harmful substance, such as dioxin, take up a large area, the complicated problem of the big installation of volume.The vertical danger waste treatment equipment of the one kind includes interconnected the first furnace body and the second furnace body；The top of first furnace body is equipped with solid waste import, and interconnected a combustion room and primary furnace are successively arranged in the first furnace body below solid waste import；Primary furnace outer bottom is equipped with heating device；The vertical danger waste treatment equipment of one kind further includes liquid waste storage pool and electromagnetic induction heating pipe；Liquid waste storage pool is connected to by electromagnetic induction heating pipe with a combustion room；Electromagnetic induction heating pipe is equipped with pump and electromagnetic switch valve.Through the above scheme, it is small that invention achieves occupied areas, and installation is simple, and processing efficiently, does not generate the purpose of pernicious gas.
Description
Technical field
The present invention relates to danger waste process fields, specifically, being to be related to a kind of vertical danger waste treatment equipment.
Background technique
National Hazard waste register (Basel Convention) includes HW01~HW47, most organic matters, medical treatment/medicine/pesticide
Waste, chemicals and chemical spent material, PCBs, PCDD/Fs, cyanide contain toxic heavy metal waste, incineration disposal residue, abandoned mine
Object oil, greasy filth, oily filtering, paint, dyestuff, coating waste, waste mineral oil, greasy filth, oily filtering, paint, dyestuff, coating waste etc.
Deng；With the development of industry, the hazardous waste of industrial processes discharge is increasing, it is estimated that, the annual danger in the whole world
Waste yield is 3.3 hundred million tons.
Many conventional spam incinerators are in (800 DEG C or less) processing rubbish of low temperature, due to component of refuse complexity, rubbish
Calorific value can not be estimated accurately, in order to guarantee to burn the abundant release of overall process waste energy, burn carrying out kiln formula to industrial sludge
It needs to carry out drying and other treatment before burning；I.e. in 250 DEG C or so Schilling sludge dewaterings (drying and other treatment), then increases temperature and enable its burning point
Solution.Theoretically require at this time in-furnace temperature reach 900~1100 DEG C, but in actual operation, the kiln of this gas, oil firing method
The in-furnace temperature of formula furnace is often less than 800 DEG C.And most of incinerator actual motion temperature are only 700 DEG C or less.In this way, burning
Waste may generate the stronger newborn substance of toxicity, such as dioxin.The binding force of chlorine is very strong in incinerator, anti-with other elements
Chloride should be produced afterwards, be the misfortune source for generating dioxin.Chloride, HCl gas be generate dioxin arch-criminal, about 80%
~90% dioxin therefrom generates.In addition, identical as chlorine, bromine, fluorine, iodine of halogen system etc. also have flame-retarding characteristic,
Cryosphere can be formed on furnace flame surface, generate dioxin；It takes up a large area, the reasons such as big installation complexity of volume, is not suitable with
The hazardous waste garbage of chemical pharmaceutical factory, hospital, electroplating facility, leather printing and dyeing, metallurgy etc. is handled.
Summary of the invention
The purpose of the present invention is to provide a kind of vertical danger waste treatment equipments, to solve existing burning disposal temperature up to not
It needs temperature to be also easy to produce poisonous and harmful substance, such as dioxin to burning, takes up a large area, the complicated problem of the big installation of volume.
To solve the above-mentioned problems, the invention provides the following technical scheme:
A kind of vertical danger waste treatment equipment includes interconnected the first furnace body and the second furnace body；The top of first furnace body
Equipped with solid waste import, interconnected a combustion room and slag are successively arranged in the first furnace body below solid waste import
Room；Primary furnace outer bottom is equipped with heating device.
Specifically, a kind of vertical danger waste treatment equipment further includes liquid waste storage pool and electromagnetic induction heating pipe；Liquid
State waste material storage pool is connected to by electromagnetic induction heating pipe with a combustion room；Electromagnetic induction heating pipe is equipped with pump and electromagnetic switch
Valve.
Specifically, solid waste inlet communication has spiral quantitative charger, and the feed inlet of spiral quantitative charger is communicated with
Blending bunker.
Specifically, a kind of vertical danger waste treatment equipment further includes controller；First furnace body is equipped with multiple plasmas
Torch, crater are respectively uniformly distributed in a combustion room and primary furnace；Second furnace body includes the dual firing chamber to set within it, the
Two furnace bodies are equipped with neat gas burner, and crater is located in dual firing chamber；It is respectively equipped in one combustion room, dual firing chamber and primary furnace
At least one temperature sensor；The temperature analog signal input terminal of temperature sensor and controller is electrically connected；One combustion room of controller
Digital controlled signal output end and the signal input part of the plasma flare of a combustion room are electrically connected, dual firing chamber's number control of controller
The signal input part of signal output end processed and the neat gas burner of dual firing chamber is electrically connected, the primary furnace digital controlled signal of controller
The signal input part of the plasma flare of output end and primary furnace is electrically connected.
Specifically, a kind of vertical danger waste treatment equipment further includes the first pressure fan and the second pressure fan；First pressure fan
And one combustion room between, gas distribution pipe is respectively connected between the second pressure fan and dual firing chamber, check valve, blowdown pipe are connected on blowdown pipe
Outlet be equipped with multiple gas outlets, gas outlet is uniformly distributed in a combustion room and dual firing chamber.
Specifically, it is equipped at least one pressure sensor in a combustion chamber interior walls, the output end of pressure sensor is connected with
Connect with the frequency-variable controller signal input part of the first pressure fan.
Specifically, primary furnace side wall or lower part are equipped with slag-drip opening；Slag-drip opening is communicated with vitreum chain scraper conveyor, vitreum
Chain scraper conveyor is arranged in sea water bath.
Specifically, heating device is electromagnetic induction heater, is arranged in the molten slag bath of the first bottom of furnace body.
Specifically, a combustion room side wall upper part is connected to the lower sidewall of dual firing chamber；Dual firing chamber's side wall upper part arrangement flue gas goes out
Mouth flange；Lower sidewall is disposed with manhole；Ash discharging hole is arranged in bottom.
Specifically, it is respectively mounted mechanical explosion door on the first furnace body and the second furnace body, dump is installed on the second furnace body
Chimney.
Compared with prior art, the invention has the following advantages:
(1) the invention mainly comprises the first furnace bodies and the second furnace body to make this hair by replacing different pipelines according to landform
It is bright to be used in more spaces, there is structure to be simple and convenient to operate, is small in size, land occupation is few, installs and uses easy feature；This
Invention more minimizes, and is suitable for on-site incineration mode, can be widely used in chemical pharmaceutical factory, hospital, electroplating facility, leather print
Hazardous waste garbage caused by dye, metallurgy etc..
(2) present invention uses plasma pyrolysis combustion system, is endangered in the first combustion chamber using 800~900 DEG C of high temperature pyrolysis
Dangerous waste, generates fuel gas, and fuel gas enters the second combustion chamber；In 1200 DEG C of burnings of dual firing chamber, guarantee completely burned；
Chemical spent material, hospital waste after plasma treatment can decompose completely, and the carcinogenic fertile absorber such as dioxin is realized up to standard
Discharge.
(3) it further burns into primary furnace, the flue gas of generation passes through after burning of the waste by a combustion room in the present invention
Pipeline enters the second furnace body and burns away；Keep burning more abundant；Heating device outside primary furnace makes the indoor residue of slag
It is in a molten state, convenient for discharge residue；The temperature of one combustion room and primary furnace influences each other, and keeps the indoor temperature of a combustion more steady
It is fixed.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:
The first furnace body of 101-, the second furnace body of 102-, 103- mono- fire room, 104- primary furnace, 105- slag-drip opening, 106- heating dress
Set, 107- liquid waste storage pool, 108- electromagnetic induction heating pipe, 109- pump, 110- electromagnetic switch valve, 130- spiral quantitative into
Material machine, 111- blending bunker, 112- controller, 113- plasma flare, 114- temperature sensor, 115- dual firing chamber, 140-
First pressure fan, the second pressure fan of 116-, 117- check valve, 118- pressure sensor, 119- vitreum chain scraper conveyor, 120-
Sea water bath, 121- exhanst gas outlet flange, 150- manhole, 122- neat gas burner, 123- ash discharging hole, 124- mechanical explosion
Door, 125- dump chimney.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
As shown in Figure 1, a kind of vertical danger waste treatment equipment includes interconnected the first furnace body 101 and the second furnace body
102；The top of first furnace body 101 is equipped with solid waste import, is successively arranged in the first furnace body 101 below solid waste import
An interconnected combustion room 103 and primary furnace 104；104 outer bottom of primary furnace is equipped with heating device 106；It is relatively existing dangerous useless
Object processing system is connected between the first furnace body 101 and the second furnace body 102 by pipeline；The invention mainly comprises the first furnace bodies 101
The present invention can be made to be used in more spaces by the different pipeline of replacement according to landform with the second furnace body 102, there is structure letter
Single, easy to operate, small in size, land occupation is few, installs and uses easy feature；The present invention more minimizes, and is suitable for on-site incineration
Mode can be widely used in hazardous waste garbage caused by chemical pharmaceutical factory, hospital, electroplating facility, leather printing and dyeing, metallurgy etc.；
After burning of the waste by a combustion room 103, further burn into primary furnace 104, the flue gas of generation enters second by pipeline
Furnace body 102 needs to continue purification through detection after burning away and then further purifies discharge into purification system, then may be used without purification
Direct emission.
As in preferred embodiments of the present invention, the vertical danger waste treatment equipment of one kind further includes liquid waste storage pool
107 and electromagnetic induction heating pipe 108；Liquid waste storage pool 107 is connected to by electromagnetic induction heating pipe 108 with a combustion room 103；
Electromagnetic induction heating pipe 108 is equipped with pump 109 and electromagnetic switch valve 110110；The present invention can not only carry out the processing of solid waste
The processing of liquid waste can be also carried out, liquid waste storage pool 107 selects according to actual needs, and position is specifically arranged
It sets；Solid-state and liquid waste are divided into a combustion room 103, burn more abundant, keep waste treatment effeciency of the invention higher；Liquid
State waste material is entered in a combustion room 103 under the action of pumping 109 by electromagnetic induction heating pipe 108, and liquid waste is in electromagnetic induction
Enter combustion 103 internal combustion burning-outization of room in heating tube 108 after preheating.
As in preferred embodiments of the present invention, solid waste inlet communication has spiral quantitative charger 130, spiral quantitative
The feed inlet of charger 130 is communicated with blending bunker 111；Solid waste enters spiral quantitative charger by blending bunker 111
130 under its effect enter one combustion room 103 in burn.
As in preferred embodiments of the present invention, the vertical danger waste treatment equipment of one kind further includes controller 112；First furnace
Body 101 is equipped with multiple plasma flares 113, and crater is respectively uniformly distributed in a combustion room 103 and primary furnace 104；
Second furnace body 102 includes the dual firing chamber 115 to set within it, and the second furnace body 102 is equipped with neat gas burner 122, goes out fire
Mouth is located in dual firing chamber 115；At least one temperature sensor is respectively equipped in one combustion room 103, dual firing chamber 115 and primary furnace 104
114；Temperature sensor 114 and the temperature analog signal input terminal of controller 112 are electrically connected；103 number of a combustion room of controller 112
Control signal output and the signal input part of the plasma flare 113 of a combustion room 103 are electrically connected, the dual firing chamber of controller 112
The signal input part of 115 digital controlled signal output ends and the neat gas burner 122 of dual firing chamber 115 is electrically connected, controller 112
104 digital controlled signal output end of primary furnace and the signal input part of the plasma flare 113 of primary furnace 104 are electrically connected；Temperature
Sensor 114 is high temperature resistant temperature sensor 114, and temperature collection feeds back to controller 112, it is made to adjust plasma flare
113 temperature sent out make a combustion chamber and the two indoor hazardous wastes of burning reach the ignition temperature of needs, prevent because of burning temperature
The pernicious gas that degree not enough generates such as dioxin generates；Controller 112 and temperature sensor 114 are existing conventional products,
Therefore it is not described in detail, controller 112 needs to select specific installation site according to actual installation.
As in preferred embodiments of the present invention, the vertical danger waste treatment equipment of one kind further includes 140 He of the first pressure fan
Second pressure fan 116；Between first pressure fan 140 and a combustion room 103, it is all connected between the second pressure fan 116 and dual firing chamber 115
There is gas distribution pipe, check valve 117 is connected on blowdown pipe, the outlet of blowdown pipe is equipped with multiple gas outlets, and gas outlet is uniformly distributed in
In one combustion room 103 and dual firing chamber 115；Having more port makes air uniformly multi-faceted supply, obtains hazardous waste sufficiently quickly
Processing.
As in preferred embodiments of the present invention, it is equipped at least one pressure sensor 118 on combustion 103 inner wall of room,
The output end of pressure sensor 118 is connected with to be connected with 112 signal input part of frequency-variable controller of the first pressure fan 140；Pass through pressure
Pressure in force snesor 118 and the first air-blower control one combustion room 103, the operation for keeping the present invention more stable.
As in preferred embodiments of the present invention, 104 side wall of primary furnace or lower part are equipped with slag-drip opening 105；Slag-drip opening 105 connects
It is connected with vitreum chain scraper conveyor 119, vitreum chain scraper conveyor 119 is arranged in sea water bath 120；Residue after burning passes through
The transport discharge of vitreum chain scraper conveyor 119；Vitreum chain scraper conveyor 119 is located in sea water bath 120, drops the temperature of residue
It is low.
As in preferred embodiments of the present invention, heating device 106 is electromagnetic induction heater, is arranged in the first furnace body
In the molten slag bath of 101 bottoms, using magnetic conduction high temperature resistant, resistant material as heater；Heating device 106 can also be other tools
There is the equipment of heating function；It can select according to actual needs.
As in preferred embodiments of the present invention, combustion 103 side wall upper part of room is connected to the lower sidewall of dual firing chamber 115；
115 side wall upper part of dual firing chamber arranges exhanst gas outlet flange 121；Lower sidewall is disposed with manhole 150；Ash discharging hole is arranged in bottom
123。
As in preferred embodiments of the present invention, mechanical explosion door is respectively mounted on the first furnace body 101 and the second furnace body 102
124, dump chimney 125 is installed on the second furnace body 102；Dump chimney 125 is in emergency circumstances to discharge or passing through
Detection meets national emission standard, then can discharge.
The present invention accurately controls pyrolysis temperature and ignition temperature, to waste of low heating value without adding activation energy, is suitable for
All kinds of rubbish.
When medical waste, poisonous and harmful industrial dangerous waste (solid, gas, liquid) are put into the present invention, extremely short
Can reach 1200 DEG C~3000 DEG C in time, in a combustion chamber, organic waste under action of plasma, rapid dehydration,
Pyrolysis, cracking are generated with H2, CO, CH4 and other organic gas mixing imflammable gas as main component, fuel gas warp
Channel enters two combustion chambers, then lights fuel gas through plasma, and temperature is greater than 1200 DEG C, and fuel gas decomposes combustion completely
It burns, reaches volume reduction, nontoxicization by second-time burning；Inorganic matter (metal, glass) etc. melts under action of plasma,
Also nontoxicization and volume reduction purpose have been reached；Importantly, be non-single combustion process using corona treatment dangerous waste object,
And reaction temperature is at 1200 DEG C or more, because without generating dioxin.The present invention is without using conventional activations energy such as oil, natural gases
Fuel, not will increase the discharge amount of pollutant, quick heating, can put into refuse pyrolysis after the 5 points of kinds that are switched on；Critical process of the present invention
For the first combustion chamber 6 and the second accurately design of combustion chamber 7, organically combined between in-furnace temperature control and air demand, to reach
Smokelessly, innoxious；Second combustion chamber, 7 combustion zone temperature is greater than 1500 DEG C, and the gas temperature of two combustor exits discharge is greater than
1000 DEG C, the outer temperature of furnace is less than 50 DEG C.
Many conventional spam incinerators are in (800 DEG C or less) processing rubbish of low temperature, due to component of refuse complexity, rubbish
Calorific value can not be estimated accurately, in order to guarantee to burn the abundant release of overall process waste energy, burn carrying out kiln formula to industrial sludge
It needs to carry out drying and other treatment before burning.It is handled in 250 DEG C or so Schilling sludge dehydrating and dryings, then increases temperature and enable its burning point
Solution.Theoretically require at this time in-furnace temperature reach 900~1100 DEG C, but in actual operation, the kiln of this gas, oil firing method
The in-furnace temperature of formula furnace is often less than 800 DEG C.And most of incinerator actual motion temperature are only 700 DEG C or less.In this way, burning
Waste may generate the stronger newborn substance of toxicity, such as dioxin.The binding force of chlorine is very strong in incinerator, anti-with other elements
Chloride should be produced afterwards, be the misfortune source for generating dioxin.Chloride, HCl gas be generate dioxin arch-criminal, about 80%
~90% dioxin therefrom generates.In addition, identical as chlorine, bromine, fluorine, iodine of halogen system etc. also have flame-retarding characteristic,
Cryosphere can be formed on furnace flame surface, generate dioxin.And corona treatment garbage system is at 900~1200 DEG C or more
High temperature pyrolysis, second-time burning.Dangerous waste object sufficiently decomposes, and can prevent the formation of dioxin.Corona treatment garbage system does not have to
Coal, oil, combustion gas or natural gas, electricity consumption and air, clean, safety are without secondary pollution；It, can essence without considering the calorific value of rubbish
Indoor temperature of burning really is controlled, no black smoke discharge is easy to operate, and starting is shut down fastly, can Automatic Control；The present invention is by outer
The first combustion chamber 6 and the second combustion chamber 7, crushing and feed system, heat-exchange system and its tail gas that shell and heat-resisting material pour
Processing system composition.The present invention is compared with pure combustion gas and oily incinerator, and the present apparatus is pyrolyzed completely incineration firing, and no environment is dirty
Dye；Another outstanding advantages of the present apparatus are: furnace structure is advanced, convenient for miniaturization, occupied area is small, operation cost is low, suitable for pushing away
Broad-spectrum and, plasma glow is directly entered hearth combustion, and feature temperature is high, decomposition rate is fast, hazardous waste quilt at high temperature
Efficiently whole decomposition are reached thorough nontoxicization by cracking, all virus spreads and other poisonous and harmful substances.On the one hand
Incineration firing can be made more stable, improve firing efficiency, one combustion 103 pyrolysis temperature of room of design is 800~900 DEG C, 115 temperature of dual firing chamber
Degree is greater than 1200 DEG C, gas residence time >=2S；The technical treatment dangerous waste object, firing efficiency 99.99%, destroy by fire removal rate >=
99.99%, ripe burn decrement rate≤5% of lime-ash.
Danger waste treatment equipment exhaust emissions index table
| Type | Unit | GB18484 | Present invention processing | Unite States Standard | German Standard | Nederlands Norm |
| PCDD/Fs | ng/Nm3(TEQ) | 0.5 | ~0.0001 | 0.14~0.21 | 0.1 | 0.1 |
| Particulate matter | mg/Nm3 | 80 | 0.38~19 | |||
| CO | mg/Nm3 | 100 | 1.25~1.75 | |||
| NOx | mg/Nm3 | 500 | 0.03~20 | 200 | 200 | 70 |
| SO2 | mg/Nm3 | 400 | 0.29~0.59 | 50 | 50 | 40 |
According to above-described embodiment, the present invention can be realized well.It is worth noting that before based on said structure design
It puts, to solve same technical problem, even if that makes in the present invention is some without substantive change or polishing, is used
Technical solution essence still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (10)
1. a kind of vertical danger waste treatment equipment, it is characterised in that: including interconnected the first furnace body and the second furnace body；First
The top of furnace body is equipped with solid waste import, is successively arranged an interconnected combustion in the first furnace body below solid waste import
Room and primary furnace；Primary furnace outer bottom is equipped with heating device.
2. a kind of vertical danger waste treatment equipment according to claim 1, it is characterised in that: further include liquid waste storage pool
And electromagnetic induction heating pipe；Liquid waste storage pool is connected to by electromagnetic induction heating pipe with a combustion room；Electromagnetic induction heating pipe
It is equipped with pump and electromagnetic switch valve.
3. a kind of vertical danger waste treatment equipment according to claim 1 or 2, it is characterised in that: solid waste import connects
It is connected with spiral quantitative charger, the feed inlet of spiral quantitative charger is communicated with blending bunker.
4. a kind of vertical danger waste treatment equipment according to claim 3, it is characterised in that: further include controller；First
Furnace body is equipped with multiple plasma flares, and crater is respectively uniformly distributed in a combustion room and primary furnace；Second furnace body packet
The dual firing chamber to set within it is included, the second furnace body is equipped with neat gas burner, and crater is located in dual firing chamber；One combustion room,
At least one temperature sensor is respectively equipped in dual firing chamber and primary furnace；The temperature analog signal of temperature sensor and controller is defeated
Enter end to be electrically connected；The signal input part electricity of one combustion number of chambers word control signal output of controller and the plasma flare of a combustion room
Even, the signal input part of the neat gas burner of dual firing chamber's digital controlled signal output end and dual firing chamber of controller is electrically connected, and controls
The signal input part of the plasma flare of the primary furnace digital controlled signal output end and primary furnace of device processed is electrically connected.
5. a kind of vertical danger waste treatment equipment according to claim 4, it is characterised in that: further include the first pressure fan and
Second pressure fan；Between first pressure fan and a combustion room, gas distribution pipe, blowdown pipe are respectively connected between the second pressure fan and dual firing chamber
On be connected with check valve, the outlet of blowdown pipe is equipped with multiple gas outlets, and gas outlet is uniformly distributed in a combustion room and dual firing chamber.
6. a kind of vertical danger waste treatment equipment according to claim 5, it is characterised in that: be equipped in a combustion chamber interior walls
At least one pressure sensor, the output end of pressure sensor are connected with the frequency-variable controller signal input part with the first pressure fan
Even.
7. a kind of vertical danger waste treatment equipment according to claim 6, it is characterised in that: primary furnace side wall or lower part are set
There is slag-drip opening；Slag-drip opening is communicated with vitreum chain scraper conveyor, and vitreum chain scraper conveyor is arranged in sea water bath.
8. according to a kind of described in any item vertical danger waste treatment equipments of claim 5-7, it is characterised in that: heating device is
Electromagnetic induction heater is arranged in the molten slag bath of the first bottom of furnace body.
9. a kind of vertical danger waste treatment equipment according to claim 8, it is characterised in that: a combustion room side wall upper part and two
Fire the lower sidewall connection of room；Dual firing chamber's side wall upper part arranges exhanst gas outlet flange；Lower sidewall is disposed with manhole；Bottom is set
Set ash discharging hole.
10. a kind of vertical danger waste treatment equipment according to claim 9, it is characterised in that: the first furnace body and the second furnace
It is respectively mounted mechanical explosion door on body, dump chimney is installed on the second furnace body.
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| CN201910218354.6A CN109915839A (en) | 2019-03-21 | 2019-03-21 | A kind of vertical danger waste treatment equipment |
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| CN110686245A (en) * | 2019-10-10 | 2020-01-14 | 北京航空航天大学 | Long-life high temperature plasma torch medical waste innocent treatment system |
| CN110686255A (en) * | 2019-09-20 | 2020-01-14 | 山东欧卡环保工程有限公司 | Method for treating waste concentrated solution by plasma incineration |
| CN110793036A (en) * | 2019-10-29 | 2020-02-14 | 刘咏 | Oxygen-enriched combustion-supporting incinerator for medical waste treatment |
| CN112032723A (en) * | 2019-10-10 | 2020-12-04 | 北京航空航天大学 | Vertical intelligent plasma medical waste cracking measurement and control system based on Internet of things |
| CN113339806A (en) * | 2021-05-28 | 2021-09-03 | 西安交通大学 | Medical waste plasma melting assisted pyrolysis treatment method |
| CN113566204A (en) * | 2021-07-20 | 2021-10-29 | 沈小松 | Dangerous solid waste plasma treatment equipment |
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| CN113339806A (en) * | 2021-05-28 | 2021-09-03 | 西安交通大学 | Medical waste plasma melting assisted pyrolysis treatment method |
| CN113566204A (en) * | 2021-07-20 | 2021-10-29 | 沈小松 | Dangerous solid waste plasma treatment equipment |
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Application publication date: 20190621 |
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| RJ01 | Rejection of invention patent application after publication |