CN106524172B - A kind of microwave plasma burns the method and device of Biohazard Waste - Google Patents

A kind of microwave plasma burns the method and device of Biohazard Waste Download PDF

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Publication number
CN106524172B
CN106524172B CN201611135698.3A CN201611135698A CN106524172B CN 106524172 B CN106524172 B CN 106524172B CN 201611135698 A CN201611135698 A CN 201611135698A CN 106524172 B CN106524172 B CN 106524172B
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China
Prior art keywords
microwave
furnace body
burner hearth
plasma
biohazard waste
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CN201611135698.3A
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CN106524172A (en
Inventor
张雪峰
刘新保
李超
贾晓林
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Zhengzhou De Lang Can Microwave Technology Co Ltd
Inner Mongolia University of Science and Technology
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Zhengzhou De Lang Can Microwave Technology Co Ltd
Inner Mongolia University of Science and Technology
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/10Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50Control or safety arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/302Treating pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/20Supplementary heating arrangements using electric energy
    • F23G2204/201Plasma
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/20Supplementary heating arrangements using electric energy
    • F23G2204/203Microwave

Abstract

The present invention provides a kind of method and device of microwave plasma burning Biohazard Waste, and water first is added in medical waste, stirs evenly and is placed in burner hearth;It adjusts microwave plasma generator end and carries out Microwave Pretreatment;It is then log out microwave plasma generator end, adjusting microwave power is to be burned;Product is directly discharged from burner hearth after burning, into transporting in material conveying vehicle.The present invention carries out heating early period to Biohazard Waste using the electric arc that microwave plasma and microwave generate, effectively overcome due to Biohazard Waste does not absorb microwave and the problem of can not handle it.Entire treatment process carries out in closed environment; it is set to be cracked into gas and solid residue at high temperature; the solid, liquid, gas body that the secondary pollutions such as the dioxin of strong toxicity will not be generated, and generated during the burning process, which can collect, to be comprehensively utilized, very environmentally friendly.

Description

A kind of microwave plasma burns the method and device of Biohazard Waste
Technical field
The present invention relates to medical wastes treatment technologies field, in particular to a kind of microwave plasma burns Biohazard Waste Method and device.
Background technique
Medical waste is a kind of catastrophe risk waste, generates greatly harm, medical waste to environment and human health Object processing problem has become one, whole world problem.Since Biohazard Waste has toxicity, it is difficult to it is handled with conventional method, Biohazard Waste contains a large amount of bacterium, virus and chemical agent, has extremely strong infectiousness, bio-toxicity and corrosivity, not Halfway Biohazard Waste is handled or is handled easily to pollute water body, soil and air, to human body generate directly or Indirectly harm.Existing Biohazard Waste processing mainly has incineration method, chemical disinfection, steam disinfection, sanitary landfills etc.. But various metals " flying dust " and various pernicious gases will be released during the burning process, generate dioxin of strong toxicity etc. two Secondary pollutant, seriously affects human health.Biohazard Waste landfill disposal need to occupy large amount of land resources, while to the two of environment Secondary pollution is big.
Summary of the invention
The technical problem to be solved in the present invention: overcome technique present in Biohazard Waste treatment process in the prior art multiple It is miscellaneous, equipment is expensive, processing is not thorough, causes the disadvantages of secondary pollution, a kind of microwave plasma is provided and burns Biohazard Waste Method and device has many advantages, such as that processing is thorough, high-efficient, prevents secondary pollution, energy conservation and environmental protection.
Technical solution of the present invention:
A kind of microwave plasma burns the device of Biohazard Waste, including microwave oven, touch screen, PLC, control dress Set, lifting device and material conveying vehicle, the microwave oven include furnace body, furnace bottom, temperature element, plasma-arc system, Transition waceguide and magnetron;The furnace body is cylindrical shape, and the upper end of furnace body is equipped with hemispheric bell, is equipped in the inner cavity of furnace body The columnar burner hearth of upper end opening, the upper end of bell are equipped with the temperature element inside insertion burner hearth, the furnace body around burner hearth On be enclosed with thermal insulation material, the outside of furnace body is along the circumferential direction evenly distributed with several magnetrons and transition waceguide, magnetron and transition Waveguide connection, transition waceguide protrude into furnace body;The shape of furnace bottom and furnace body is that upper and lower end is matched spherical;It is described it is equal from Sub- Arc System includes contact and the driving and reversing mechanism that connect with contact, and contact protrudes into the burner hearth of furnace body;The inspection of the temperature element Survey signal and be transmitted to control device, the control device respectively to driving and reversing mechanism, magnetron and control device transmission of control signals, Material conveying vehicle is that electric hydaulic increases vehicle, and lifting device links together with material conveying vehicle, for driving the upper and lower of furnace bottom It is mobile;Control device and PLC establish two-way communication link, and PLC and touch screen establish two-way communication link.
Preferably, the contact includes ceramic push rod, base of ceramic and graphite round bar, and the leading head of graphite round bar is circle Tapered, graphite round bar is located at the front end of base of ceramic, and ceramic push rod is located at the rear end of base of ceramic, and driving and reversing mechanism includes slowing down to turn To mechanism, motor and control circuit, ceramic push rod is connect with deceleration steering mechanism, and control circuit transmits rotation command to motor, The rotate driving deceleration steering mechanism of motor, deceleration steering mechanism drive the back-and-forth motion of ceramic push rod, control circuit and control Device establishes communication connection.
Preferably, the magnetron (6) and transition waceguide (5) are respectively at least six, and magnetron (6) passes through transition waceguide (5) it is connected with furnace body (1);Sealing partition (5-2) is inlayed between the flange (5-3) of the transition waceguide, is sealed partition (5-2) Surrounding is provided with shielding ring (5-1), and flange (5-3) is joined with bolts;Sealing partition (5-2) is polytetrafluoroethylene (PTFE) material, Shielding ring (5-1) is spun gold mesh belt.
Preferably, control device uses PLC program controller, and temperature element uses infrared radiation thermometer or thermocouple, infrared Temperature measurer or thermocouple output signal access PLC program controller.
Preferably, the furnace body and furnace bottom are stainless steel material;Be provided on the bell of upper of furnace body it is at least one set of into Port and exhaust outlet;Furnace bottom is equipped with support device and discharge outlet, and the upper end of support device and the lower end surface of burner hearth connect, draining Mouth is equipped with control valve;Copper mesh band micro-wave screening circle and rubber seal are provided between furnace body and furnace bottom.
A kind of incinerating method for the device burning Biohazard Waste based on microwave plasma, comprising the following steps:
S1. medical waste is placed in the burner hearth (1-2) of microwave oven, a certain amount of water is added;
S2. magnetron is opened by control device, adjusts microwave to the 20-30% of maximum power, then adjusts plasma electric The driving and reversing mechanism of arc system makes contact enter the depth 10-40mm of burner hearth, carries out Microwave Pretreatment;
S3. the contact of plasma-arc system is exited, microwave is adjusted and increases power, burned;
S4. the contact for adjusting plasma-arc system, the depth for making it into burner hearth is 40-100mm, after 10-30 minutes It exits;
S5. cooled to room temperature.
Preferably, the power of the microwave oven is 10~20KW, and the Microwave Pretreatment is medical treatment after being pulverized The water of its quality 15-30% is added in rubbish, is warming up to 300-350 DEG C;It is described to burn to adjust microwave and increasing power to 50-60% Left and right is continuously heating to 600-850 DEG C, keeps the temperature 30-40 minutes;Residue is expelled directly out by burner hearth into material conveying vehicle; The gas of generation is discharged by the exhaust outlet on top, and the water of generation is discharged by the discharge outlet of lower part.
Beneficial effects of the present invention:
1) for the present invention using the device of microwave pressurization heating plasma processing Biohazard Waste, structure is simple, designs rationally, The thermal efficiency is high.Burner hearth is cylindrical shape, and bell and furnace bottom are arc, ensure that uniformity, the continuity of microwave field strength, can The temperature gradient for being heated region is reduced to the maximum extent;It not only can handle Biohazard Waste, can also be used to handle other Various wastes.
2) present invention is heated Biohazard Waste using microwave, it is made to be cracked into gas and solid residue at high temperature; The secondary pollutions such as the dioxin of strong toxicity can't be generated.
3) early period of the invention carries out heating early period to Biohazard Waste using the electric arc that microwave plasma and microwave generate, and has Effect overcome due to Biohazard Waste does not absorb microwave and the problem of microwave treatment can not be carried out to it.
4) after processed Biohazard Waste tentatively cracks, plasma and arcing device are removed, using pure microwave to doctor It treats waste further to be heated, ensure that the stabilization of Biohazard Waste cracking and uniform.5) by using PLC pairs Magnetron is controlled, and can be required any setting processing routine according to the technique of various materials, be carried out for different materials Setting, it is ensured that the realization of optimised process.
6) the solid, liquid, gas body that entire treatment process is carried out in closed environment, and generated during the burning process can be with It collects and is comprehensively utilized, it is very environmentally friendly.The results showed the Biohazard Waste effect of this method processing is good, to therein The strains killing rate such as hay bacillus, Escherichia coli is 100%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the device that microwave plasma of the present invention burns Biohazard Waste;
Fig. 2 is the charging and discharging schematic diagram for the device that microwave plasma of the present invention burns Biohazard Waste;
Fig. 3 is the structural schematic diagram for the plasma-arc system that microwave plasma of the present invention burns Biohazard Waste;
Fig. 4 is the structural schematic diagram for the transition waceguide that microwave plasma of the present invention burns Biohazard Waste device;
Fig. 5 is the schematic diagram for the device integrated circuit that microwave plasma of the present invention burns Biohazard Waste.
In figure, 1 is furnace body, and 1-1 is thermal insulation material, and 1-2 is burner hearth, and 1-3 is air inlet, and 1-4 is exhaust outlet, and 2 be furnace bottom, 2-1 is support device, and 2-2 is discharge outlet, and 2-3 is copper mesh band micro-wave screening circle, and 2-4 is rubber seal, and 3 be temperature element, 4 For plasma-arc system, 4-1 is contact, and 4-2 is driving and reversing mechanism, and 5 be transition waceguide, and 6 be magnetron, and 7 be touch screen, and 8 are PLC, 9 be control device, and 10 be lifting device, and 11 be material, and 12 be material conveying vehicle;4-1-1 is ceramic push rod, and 4-1-2 is Base of ceramic, 4-1-3 are graphite round bar, and 4-2-1 is deceleration steering mechanism, and 4-2-2 is motor, and 4-2-3 is control circuit;5-1 For shielding ring, 5-2 is sealing partition, and 5-3 is flange.
Specific embodiment
Embodiment one: a kind of microwave plasma burns the device of Biohazard Waste, referring to Fig. 1-4, including microwave oven, Touch screen 7, PLC 8, control device 9, lifting device 10 and material conveying vehicle 12, microwave oven include furnace body 1, furnace bottom 2, survey Warm element 3, plasma-arc system 4, transition waceguide 5 and magnetron 6.
Furnace body 1 is cylindrical shape, and the upper end of furnace body 1 is equipped with hemispheric bell, is equipped with upper end opening in the inner cavity of furnace body 1 Thermal insulation material 1-1 is wrapped up around columnar burner hearth 1-2, burner hearth 1-2.Several magnetrons 6 are evenly distributed on furnace body 1 at circle-shaped Outside.Furnace bottom 2 and furnace body shape are that upper and lower end is matched spherical.The magnetron 6 and transition waceguide 5 are along 1 surrounding of furnace body It is evenly arranged, transition waceguide 5 protrudes into furnace body 1.Transition waceguide 5 includes shielding ring 5-1, sealing partition 5-2 and flange 5-3.? 1 top of furnace body is equipped with the temperature element 3 protruded into burner hearth.Plasma-arc system 4 includes contact 4-1 and driving and reversing mechanism 4-2, touching Head 4-1 is made of ceramic push rod 4-1-1, base of ceramic 4-1-2 and graphite round bar 4-1-3, wherein the head of graphite round bar 4-1-3 For pyramid type, graphite round bar 4-1-3 is connect with base of ceramic 4-1-2, and base of ceramic 4-1-2 is connect with ceramics push rod 4-1-1.Stone Black round bar 4-1-3 is located at the front end of base of ceramic 4-1-2, and ceramic push rod 4-1-1 is located at the rear end of base of ceramic 4-1-2.It retreats Mechanism 4-2 includes deceleration steering mechanism 4-2-1, motor 4-2-2 and control circuit 4-2-3, ceramic push rod 4-1-1 and steering of slowing down Mechanism 4-2-1 connection, control circuit 4-2-3 transmit rotation command to motor 4-2-2, and the rotate driving of motor 4-2-2, which is slowed down, to be turned The back-and-forth motion of ceramic push rod 4-1-1, control circuit 4-2-3 and control are driven to mechanism 4-2-1, deceleration steering mechanism 4-2-1 Device 9 establishes communication connection.
Furnace body 1 and furnace bottom 2 are stainless steel material.1 top of furnace body is provided at least one set of air inlet 1-3 and exhaust outlet 1-4. Furnace bottom 2 is equipped with support device 2-1 and discharge outlet 2-2.Be provided between furnace body 1 and furnace bottom 2 copper mesh band micro-wave screening circle 2-3 and Rubber seal 2-4.
Magnetron 6 and transition waceguide 5 are respectively at least six, and magnetron 6 is connected by transition waceguide 5 with furnace body 1.It crosses It crosses between the flange 5-3 of waveguide and inlays sealing partition 5-2, seal and be provided with shielding ring 5-1, flange 5-3 spiral shell around partition 5-2 Bolt is connected and fixed.Sealing partition 5-2 is polytetrafluoroethylene (PTFE) material, and shielding ring 5-1 is spun gold mesh belt.Magnetron 6 and transition waceguide 5 It is corresponding to be connected, it is evenly arranged in burner hearth surrounding, 6 power of magnetron is 0.8 ~ 5kw.Control device uses PLC program controller, surveys Warm element 3 uses infrared radiation thermometer or thermocouple, and infrared radiation thermometer or thermocouple detection signal access PLC program controller.It surveys Warm 3 output signal of element connects control device 9, and 9 output signal of control device is connect with PLC8 and magnetron 6.9 He of control device The control signal of lifting device 10 is connected with PLC 8.
The detection signal of temperature element 3 is transmitted to control device 9, and control device 9 is respectively to driving and reversing mechanism 4-2, magnetron 6 With 10 transmission of control signals of lifting device, material conveying vehicle 12 is that electric hydaulic increases vehicle, lifting device 10 and material conveying vehicle 12 link together, and lifting device 10 is used to drive moving up and down for furnace bottom 2;Control device 9 and PLC 8 establish two-way communication company It connects, PLC 8 and touch screen 7 establish two-way communication link.
After the completion of burning, product is expelled directly out by inner cavity 1-2 into material conveying vehicle 12;The gas of generation is by top The water of exhaust pipe 2-1 discharge, generation is discharged by the drainpipe 3-3 of lower part.
Microwave plasma technology is using microwave excited gas discharge, and gas molecule is breakdown, and to generate include electronics, various Mixture including ion, atom and free radical, the form and property of plasma are influenced strongly by additional electromagnetic field, and are deposited In collective motion (such as various electrostatic waves, drift wave, electromagnetic wave and nonlinear coherent structure and disturbance) extremely abundant, because And energy is extremely concentrated, and has high electrothermal efficiency and high temperature, the high temperature of generation, which can restore, to be difficult to restore With the substance of indissoluble.
Microwave radiation can cause the vibration aggravation of organic substance interior molecules, and molecular link is caused to connect energy increase, until point Sub-key rupture is the simple compounds of low molecular weight so as to cause complicated organic compound conversions.Meanwhile using microwave etc. from Biohazard Waste is burned in daughter, can effectively be ionized, be eliminated in exhaust gas to pernicious gases such as dioxin in tail gas Pernicious gas ingredient reduces secondary pollution of the Biohazard Waste burning to atmosphere.Due to microwave heating mechanism and conventional heating Entirely different, polar molecule dielectric and non-polar molecule dielectric of the origin of heat in dielectric material are formed by dipole " friction " heat constantly rearranged with the high speed swinging of high frequency alternating electromagnetic field.Simply by the presence of Jie with dipolar nature Matter, so that it may be heated using microwave.As it can be seen that microwave applications are added in containing wetly or moisture Biohazard Waste Heat, burning disposal are very suitable.
Embodiment two: a kind of incinerating method for the device burning Biohazard Waste based on microwave plasma, referring to Fig. 1-5, The following steps are included:
(1) 10 kilogram is placed in 2 kilograms of medical waste addition of water in burner hearth 1-2.
(2) burner hearth 1-2 is placed on having on support device 2-1 on furnace bottom 2.
(3) start elevating mechanism 10, furnace bottom 2 is ascended into furnace body 1 together with burner hearth 1-2 thereon, after fixing, open Magnetron 6 exports microwave (power of the present embodiment microwave oven is 10KW), then regulation power 3KW adjusts plasma The contact 4-1 of Arc System 4 makes it into as 80mm, is warming up to 300 DEG C.
(4) the contact 4-1 of plasma-arc system 4 is exited, adjusting microwave power is 6KW, is warming up to 600 DEG C.
(5) the contact 4-1 for adjusting plasma-arc system 4, makes it into as 40mm, exits after ten minutes.
(6) microwave is closed, furnace bottom 2 is opened after cooled to room temperature, starts elevating mechanism 10, furnace bottom 2 is fallen, so that furnace Thorax 1-2 leaves furnace body 1.Product is directly discharged from burner hearth 1-2, into transporting in material conveying vehicle 12.Burn generate gas by The exhaust outlet 1-4 on top is discharged, and the water of generation is discharged by the discharge outlet 2-2 of lower part;Comprehensive benefit is carried out after collecting by collector With.
Embodiment three: a kind of incinerating method for the device burning Biohazard Waste based on microwave plasma, referring to Fig. 1-5, The following steps are included:
(1) 20 kilogram is placed in 5 kilograms of medical waste addition of water in burner hearth 1-2.
(2) burner hearth 1-2 is placed on having on support device 2-1 on furnace bottom 2.
(3) start elevating mechanism 10, furnace bottom 2 is ascended into furnace body 1 together with burner hearth 1-2 thereon, after fixing, open Microwave (power of the present embodiment microwave oven is 20KW), then regulation power 5KW adjusts plasma-arc system 4 Contact 4-1 makes it into as 100mm, is warming up to 350 DEG C.
(4) the contact 4-1 of plasma-arc system 4 is exited, adjusting microwave power is 10KW, is warming up to 650 DEG C.
(5) the contact 4-1 for adjusting plasma-arc system 4, makes it into as 60mm, 15 minutes backed off after random.
(6) microwave is closed, furnace bottom 2 is opened after cooled to room temperature, starts elevating mechanism 10, furnace bottom 2 is fallen, so that furnace Thorax 1-2 leaves furnace body 1.Product is directly discharged from burner hearth 1-2, into transporting in material conveying vehicle 12.Burn generate gas by The exhaust outlet 1-4 on top is discharged, and the water of generation is discharged by the discharge outlet 2-2 of lower part;Comprehensive benefit is carried out after collecting by collector With.
Embodiment described above only describe the preferred embodiments of the invention, sets not departing from the present invention Under the premise of meter spirit, the various changes and improvements that those of ordinary skill in the art make technical solution of the present invention should all It falls into the protection scope that claims of the present invention determines.

Claims (4)

1. the device that a kind of microwave plasma burns Biohazard Waste, which is characterized in that including microwave oven, touch screen (7), PLC(8), control device (9), lifting device (10) and material conveying vehicle (12), the microwave oven include furnace body (1), furnace Bottom (2), temperature element (3), plasma-arc system (4), transition waceguide (5) and magnetron (6);The furnace body (1) is cylinder Shape, the upper end of furnace body (1) are equipped with hemispheric bell, the columnar burner hearth (1- of upper end opening are equipped in the inner cavity of furnace body (1) 2), the upper end of bell is equipped with the internal temperature element (3) of insertion burner hearth (1-2), wraps on the furnace body (1) around burner hearth (1-2) It is wrapped with thermal insulation material (1-1), the outside of furnace body (1) is along the circumferential direction evenly distributed with several magnetrons (6) and transition waceguide (5), magnetic Keyholed back plate (6) and transition waceguide (5) connection, transition waceguide (5) protrude into furnace body (1);The shape of furnace bottom (2) and furnace body (1) be it is upper, Lower end is matched spherical;The advance and retreat that the plasma-arc system (4) includes contact (4-1) and connect with contact (4-1) Mechanism (4-2), contact (4-1) protrude into the burner hearth (1-2) of furnace body (1);The detection signal of the temperature element (3) is transmitted to control Device (9), the control device (9) transmit control letter to driving and reversing mechanism (4-2), magnetron (6) and lifting device (10) respectively Number, material conveying vehicle (12) is that electric hydaulic increases vehicle, and lifting device (10) links together with material conveying vehicle (12), goes up and down Device (10) is used to drive moving up and down for furnace bottom (2);Control device (9) and PLC(8) establish two-way communication link, PLC(8) Two-way communication link is established with touch screen (7), the magnetron (6) and transition waceguide (5) are respectively at least six, magnetron (6) it is connected by transition waceguide (5) with furnace body (1);Sealing partition (5- is inlayed between the flange (5-3) of the transition waceguide 2) it, is provided with shielding ring (5-1) around sealing partition (5-2), flange (5-3) is joined with bolts;Sealing partition (5-2) is Polytetrafluoroethylene (PTFE) material, shielding ring (5-1) are spun gold mesh belt.
2. the device that a kind of microwave plasma according to claim 1 burns Biohazard Waste, which is characterized in that the furnace Body (1) and furnace bottom (2) are stainless steel material;At least one set of air inlet (1-3) and row are provided on the bell on furnace body (1) top Port (1-4);Furnace bottom (2) is equipped with support device (2-1) and discharge outlet (2-2), the upper end of support device (2-1) and burner hearth The lower end surface of (1-2) connects, and discharge outlet (2-2) is equipped with control valve;It is micro- that copper mesh band is provided between furnace body (1) and furnace bottom (2) Wave shielding ring (2-3) and rubber seal (2-4).
3. a kind of incinerating method for the device for burning Biohazard Waste based on microwave plasma as claimed in claim 2, feature It is, comprising the following steps:
S1. medical waste is placed in the burner hearth (1-2) of microwave oven, a certain amount of water is added;
S2. magnetron (6) are opened by control device (9), adjusts microwave to the 20-30% of maximum power, then adjusts plasma The driving and reversing mechanism (4-2) of Arc System (4) makes contact (4-1) to enter the depth 10-40mm of burner hearth (1-2), and it is pre- to carry out microwave Processing;
S3. the contact (4-1) of plasma-arc system (4) is exited, microwave is adjusted and increases power, burned;
S4. the contact (4-1) for adjusting plasma-arc system (4), the depth for making it into burner hearth (1-2) is 40-100mm, 10- 30 minutes backed off after random;
S5. cooled to room temperature.
4. a kind of incinerating method of device that Biohazard Waste is burned based on microwave plasma according to claim 3, It is characterized in that, the power of the microwave oven is 10~20KW, and the Microwave Pretreatment is in medical waste after being pulverized The water of its quality 15-30% is added, is warming up to 300-350 DEG C;It is described to burn to adjust microwave and increasing power to 50-60%, continue It is warming up to 600-850 DEG C, keeps the temperature 30-40 minutes;Residue is expelled directly out by burner hearth (1-2) into material conveying vehicle (12); The gas of generation is discharged by the exhaust outlet (1-4) on top, and the water of generation is discharged by the discharge outlet (2-2) of lower part.
CN201611135698.3A 2016-12-12 2016-12-12 A kind of microwave plasma burns the method and device of Biohazard Waste Active CN106524172B (en)

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CN109874221A (en) * 2019-04-08 2019-06-11 东北大学 A kind of method for generating plasma using microwave energized gas under normal temperature and pressure
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