CN109737419A - Medical waste classification and high-temperature pyrolysis treatment method - Google Patents
Medical waste classification and high-temperature pyrolysis treatment method Download PDFInfo
- Publication number
- CN109737419A CN109737419A CN201811571390.2A CN201811571390A CN109737419A CN 109737419 A CN109737419 A CN 109737419A CN 201811571390 A CN201811571390 A CN 201811571390A CN 109737419 A CN109737419 A CN 109737419A
- Authority
- CN
- China
- Prior art keywords
- gas
- rubbish
- pyrolysis
- high temperature
- waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000002906 medical waste Substances 0.000 title claims abstract description 27
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 81
- 238000011084 recovery Methods 0.000 claims abstract description 26
- 230000001954 sterilising effect Effects 0.000 claims abstract description 25
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 23
- 239000000126 substance Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000005416 organic matter Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 238000007885 magnetic separation Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 56
- 238000012545 processing Methods 0.000 claims description 34
- 238000003672 processing method Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 208000015181 infectious disease Diseases 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 229920002521 macromolecule Polymers 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 230000002458 infectious effect Effects 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 244000052769 pathogen Species 0.000 claims description 8
- 230000001717 pathogenic effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000012670 alkaline solution Substances 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000012263 liquid product Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 230000001575 pathological effect Effects 0.000 claims description 3
- 239000000941 radioactive substance Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract 1
- 239000011269 tar Substances 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000006063 cullet Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000003322 Coinfection Diseases 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000005138 cryopreservation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000000013 helminth Species 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
A medical waste classification recovery and high-temperature pyrolysis treatment method comprises the steps of classifying and collecting medical waste, sorting out waste raw materials without special treatment requirements in a manual sorting mode, performing high-temperature sterilization treatment on the waste raw materials through a high-temperature sterilization device, and classifying the sorted waste in a magnetic separation, air separation and gravity jigging mode; the separated magnetic metal, aluminum, glass, sand, stone and the like can be treated by a recovery department to realize the recovery and utilization of useful substances in the medical garbage, and the separated garbage with higher organic matter content is converted into a usable energy form through high-temperature pyrolysis treatment, thereby being beneficial to reducing the waste of resources and having the characteristics of high reduction degree, small secondary pollution and high energy recovery rate.
Description
Technical field
The present invention relates to a kind of medical garbage sorting recovery and processing method, in particular to a kind of medical garbage sorting recovery
And high temperature pyrolysis processing method.
Background technique
Environment and development problem has become the focal issue of global common concern, and garbage disposal is as prominent in environmental problem
It goes wrong, especially concern of the processing problem of hospital waste increasingly by the whole society and insider；Society is constantly progressive
With development, along with the various New Type of Diseases of emergence, new technology and drug are also constantly being generated, medical waste no matter
Still biggish variation quantitatively all occurs in type, especially in densely populated area, the processing of medical waste seems
It is particularly important.
And the overwhelming majority in medical waste does not obtain scientific disposal, with being widely used for disposable medical article,
The increase of hospital solid wastes yield is caused again；To save cost, some units are often by medical waste and house refuse
Mix disposition, and disposable transfusion device, operation excision object, used gauze, the waste residue of pharmacy, blood in medical waste
Equal wastes have very strong biological infection, need to carry out profession containing harmful substances such as a large amount of pathogenic microorganisms, helminths
Isolation and special burning disposal, must not mix processing with common house refuse, such as deal with improperly, will cause two
Secondary infection and environmental pollution bring serious threat to environment and human health.
As people are to the strong pollution and viral understanding of medical waste, the combustibility and high fever of medical waste in addition
Value property, people start to carry out power generation by waste combustion to medical waste, although this method can be using the calorific value in rubbish come to people
It brings convenience, but the gas of toxic gas caused by medical waste such as sulfide and dioxin etc makes people be difficult to bear
By, and be only difficult to remove noxious material in medical waste with burning, burn generation gas and waste to environment still
There is " sequelae " of pollution, therefore, produce the machine of special disposal medical waste: high-temperature incinerator, i.e. medical waste
Incinerator, such as the grate formula incinerator in the U.S.；The Circulation fluidized-bed furnace of Japan, Spain, France, Germany；Canadian fire grate
Furnace；Revolving burner and the medical waste revolution grate furnace of the country of Switzerland etc.；But this processing mode still cannot will be medical
The toxicity of rubbish completely eliminates, and the generation of dioxin can not still solve；Simultaneously as high temperature and the tar that generates easily block
Furnace tubes produce very big influence to the maintenance of equipment.
Summary of the invention
According to background above content, the purpose of the present invention is to provide a kind of medical garbage sorting recovery and Gao Wenre
Processing method is solved, to achieve the goals above, present invention employs following technical solutions: a kind of medical garbage sorting recovery and height
Warm pyrolysis treating method comprising: categorised collection, artificial separation, high-temperature sterilization processing, primary comminution processing, mechanical sorting,
Secondary pulverization process, high temperature pyrolysis processing, pyrolysis gas purified treatment, pyrolysis gas are collected.
The categorised collection process is specifically, the medical waste of separate sources according to different type separate collection and is stored
In different containers, classified collection device is placed in each rubbish source of medical institutions, the process of the classification can be in rubbish
Generation during carry out.
The medical waste of the categorised collection sub-elected by way of artificial separation no specially treated requirement rubbish and
There is the rubbish of specially treated requirement, the rubbish without specially treated requirement that selected suitable this method is handled carries out high temperature and goes out
Bacterium processing, and the rubbish that cannot be handled with this method then carries out on the basis of being collected separately according to pertinent regulations and usual way
Individually processing.
Method of the invention is only applicable to the garbage raw material of no specially treated requirement such as: waste plastics, cullet, broken ceramics,
Metal fillings, crumb, shredded paper class, sawdust, debris, swill etc. are not for some substances for having specially treated requirement
It can handle, such as: pathologic waste, radioactive substance, various chemical reagent, discarded drug, histoorgan, infectious
Pathogen or the waste for adhering to infectious pathogen, it is possible to which adhering to waste of infectious pathogen etc. should be according to related
Regulation and usual way are individually handled on the basis of being collected separately.
The rubbish of categorised collection is carried out high-temperature sterilization processing, the mistake of the high-temperature sterilization processing by the high-temperature sterilization unit
Journey are as follows: the steam of 138 DEG C ~ 160 DEG C of input, pressure rise to 4 ~ 8 atmospheric pressure in the sterilization tank of Xiang Suoshu high-temperature sterilization unit, protect
Holding the time is 20 ~ 50 minutes, after high-temperature sterilization processing, rubbish is inputted preliminary grinding device by pipeline and carries out pulverization process,
High-temperature steam in the sterilization tank then enters gas cooling purification device and carries out cooling and purifying processing.
Rubbish after the high-temperature process is tentatively crushed, the crushing process is crushed in the condition of sealing
Processing.
The mechanical sorting process includes: to be separated the magnetic metal in rubbish by way of magnetic separation；Pass through wind
The mode of choosing is mainly fiber and macromolecule organic and heavier substance, mainly gold by substance lighter in rubbish
Belong to, sandstone and glass substance are separated；It is lighter that rubbish by density variation isolated into density by way of gravity jigging
Organic matter and the heavier inorganic matter of density.
The secondary pulverizing process is that the rubbish sorted out is carried out second under conditions of closed to crush, and makes rubbish
Partial size be less than 2mm.
The high temperature pyrolysis processing is that macromolecular substances are cracked into hydrogen, methane, one at high temperature under oxygen-free environment
The flammable lower-molecular substance of carbonoxide etc, there are also the solid residues such as the liquid products such as tar, solvent naphtha and carbon black；Pyrolysis generates
Combustible gas by being stored after purified treatment with special storage device.
The combustible gas that the refuse pyrolysis generates passes sequentially through chimney cooler cold (7) but and collects tar, then passes through Sheng
There is the sour gas remover (11) of alkaline solution, with the equipment at anticorrosion rear portion, later by gas flowmeter, finally accesses
Pyrolysis gas recycles collector (15).
As further restriction of the invention, the decontamination process for the combustible gas that the refuse pyrolysis generates is specific
Are as follows: pyrolysis gas successively passes through tar filter filtering, gas-drying apparatus drying and active carbon filter filtering, filters in tar
Device filters out tar and other impurities；By gas-drying apparatus, the vapor containing band in gas is removed, finally passes through active carbon mistake
Filter, the impurity contained in adsorbed gas.
Beneficial effect
1, this system first passes through mechanical mode and is classified according to the material property of medical waste to rubbish, then again to difference
The rubbish of type is handled, and by this system, can be compared with utility in this kind of medical waste of realization of limits
It recycles, facilitates the waste for reducing resource.
2, the present invention medical waste is handled by high temperature pyrolysis, have minimizing degree height, secondary pollution it is small and
The high feature of energy recovery rate, rubbish pass through pyrolytic gasification, convert combustible gas, oil and carbon black for the organic matter in rubbish, become
Rubbish is the available energy；Rubbish is to decompose under anoxic conditions, and capacity is few, to the small rubbish of the secondary pollution of atmospheric environment
In the harmful components such as sulphur, heavy metal be largely fixed in carbon black, waste reduction is more.
3, in conventional incineration processing, due to being oxygen-enriched combusting, it is easy to a large amount of dioxin is generated, even if vent gas treatment
Also it is difficult to be removed, since pyrolytic gasification process carries out under anoxic conditions, it is suppressed that the generation of dioxin, so pyrolysis
A possibility that method generates dioxin than conventional incineration method is much smaller, and burning is oxy combustion, product be mainly carbon dioxide and
Hydrogen, and used in the present invention is high temperature pyrolysis facture, high temperature pyrolysis is under oxygen-free environment, and macromolecular substances are in high temperature
Under be cracked into flammable lower-molecular substance such as hydrogen, methane, carbon monoxide etc, there are also liquid products such as tar, solvent naphthas and
The solid residues such as carbon black；Secondly, burning process heat release, and be pyrolyzed and need to absorb heat；Again, the heat for burning generation can only be just
It is close to utilize, for power generation or heat supply；And the combustible gas generated is pyrolyzed convenient for storage and long-distance sand transport.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention；In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of medical garbage sorting recovery and high temperature pyrolysis processing method proposed by the present invention.
Fig. 2 is the high temperature pyrolysis device knot that medical garbage sorting recovery of the present invention and high temperature pyrolysis processing method use
Structure schematic diagram.
Description of symbols: 1. burners, 2. heating furnaces, 3. pyrolysis reactors, 4,5. thermocouples, 6. is automatically controlled
Cabinet, 7. chimney coolers, 8. tar wells, 9. air switches, 10. cyclic water tanks, 11. sour gas absorb
Device, 12,21. gas flowmeters, 13. gas samplers, 14. water circulating pumps, 15. pyrolysis gas collectors, 16. liquid
Liquefied oil gas bottle, 17,20. pressure gauges, 18,22. solenoid valves, 19. GAS/AIR Proportional regulating valves, 23. combustion airs
Machine.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
A kind of medical garbage sorting recovery and high temperature pyrolysis processing method provided by the invention, mainly process object is doctor
Treat rubbish in the waste without specially treated requirement such as: waste plastics, cullet, broken ceramics, metal fillings, crumb, shredded paper class, wood
Bits, debris, swill etc., it first passes through mechanical mode and is classified according to the material property of medical waste to rubbish,
High temperature pyrolysis processing is carried out to the rubbish being selected into again, by mechanical sorting, the magnetic metal that will be separated, aluminium, glass, sandstone
Etc. give department of recovery processing, realize the recycling of utility in this kind of medical waste, other fibers separated and
The rubbish of macromolecule organic is then handled by high temperature pyrolysis, and this system helps to reduce the waste of resource, has minimizing journey
The feature that degree is high, secondary pollution is small and energy recovery rate is high, medical garbage sorting recovery of the present invention and high temperature pyrolysis processing
The schematic diagram of method is as shown in Figure 1.
The categorised collection process is using categorised collection case, by the rubbish of separate sources according to different type separate collection
And be stored in different containers, this assorting process can carry out during the generation of rubbish, for classified collection device
In different types of medical waste stored using different container, the classified collection device can be placed in each rubbish of medical institutions
The process in rubbish source, the classification can carry out during the generation of rubbish；In addition, processing method of the present invention cannot be used for
Some substances for having specially treated requirement are handled, such as: pathologic waste, radioactive substance, various chemical reagent, discarded medicine
Object, histoorgan, infectious pathogen or the waste for adhering to infectious pathogen, it is possible to adhere to infectious pathogen
Waste etc. should individually be handled on the basis of being collected separately according to pertinent regulations and usual way.
The specific implementation process of this system are as follows: the rubbish being selected into is put into high-temperature sterilization unit first and carries out high-temperature sterilization
Processing, the steam of interior 138 DEG C ~ 160 DEG C of the input of the sterilization tank of Xiang Suoshu high-temperature sterilization unit, pressure rise to 4 ~ 8 atmospheric pressure, protect
Holding the time is 20 ~ 50 minutes；Then by high-temperature sterilization, treated that rubbish is tentatively crushed, and smashed rubbish enters sorting
Device is sorted, and the mechanical sorting process includes: to be separated the magnetic metal in rubbish by magnetic separation；Pass through selection by winnowing
By substance lighter in rubbish, it is mainly fiber and macromolecule organic and heavier substance, is mainly metal, sandstone
It is separated with glass substance；Rubbish is isolated into the lighter organic matter of density and density by density variation by gravity jigging
Heavier inorganic matter；By the mechanical sorting device can by the rubbish being selected into compared with organic matter and heavier inorganic matter point
From the organic matter isolated is mainly some fibre and macromolecule organic, can be used as the raw material of further pyrolysis processing；Separation
Inorganic matter out is mainly the substances such as metal, glass, sandstone, can be used as recycling substance and is further processed.
During pyrolytic reaction, shape, the size of material will affect the heat and mass transfer process in pyrolysis reactor 3, relationship
To heating rate and the most pyrolysis temperature achieved of pyrolysis reactor 3, material scale is too big, and external thermal resistance can reduce, and is conducive to convection current
Heat exchange, in order to keep pyrolytic reaction more abundant, the organic matter needs isolated further are crushed: the organic matter rubbish isolated
Raw material enters secondary grinding device by conveyer belt and is further crushed, its partial size is made to be less than 2mm；Material exists when pyrolytic reaction
Be pyrolyzed in pyrolysis reactor 3 completely whether it is related with the residence time of material, pyrolysis installation brings into operation specified to being warming up to
The decomposition of pyrolysis temperature, material requires the regular hour, and residence time deficiency material cannot be pyrolyzed completely, residence time mistake
Length can be such that the processing capacity of system declines, therefore according to the amount of rubbish per treatment, be added every time by entire machine control device control
The time of heat, guarantee that rubbish per treatment is pyrolyzed completely, the complete machine control includes that burner controls, and temperature control is cooling
Water management, burner, which controls, mainly automatic ignition, blowout protection, superpressure, the under-voltage protection of air and combustion gas, air fuel gas
The superpressure of proportion adjustment etc., air and combustion gas, under-voltage protection mainly provide safety guarantee, air/gas ratio tune for system
The effect of section valve 19 is when guaranteeing that heating power changes, and burner 1 is in clean-burning state always.
The attachment structure schematic diagram of the high temperature pyrolysis processing unit referring to fig. 2, specifically includes that heating device, pyrolysis
Reaction unit, tar well, pyrolysis gas purify collection device, entire machine control device；The heating device includes: burner 1,
Heating furnace 2, thermocouple 4,5；The pyrolytic reaction device includes pyrolysis reactor 3, and the pyrolysis reactor 3 is by heat-resisting steel
At 1150 DEG C of heatproof；Vapor is added into pyrolysis reactor 3 when pyrolytic reaction is steadily carried out, improves material and is pyrolyzed effect,
Steam evaporator is stainless steel making, and major part is that there are two the hermetically sealed cans exported to pass through heating wherein clear water is added for band
Make water boiling, generates a large amount of vapor, be used for pyrolytic reaction；Vapor is added when passing through reaction, vapor and coke occur
Reaction generates " water-gas ", it is possible to reduce the quality of carbon residue makes the more thorough pyrolysis of material；The vapor additionally incorporated
It can react with the tar of high temperature, making coal tar, also further pyrolysis becomes fuel gas, keeps pyrolysis effect more ideal
Meanwhile the problem of also mitigating the amount for condensing tar in pipeline, effectively alleviating line clogging；Pyrolysis gas passes sequentially through tubular type
Cooler 7 is cooling and collects tar, then the sour gas remover 11 by filling alkaline solution by tar well 8, it
Afterwards by gas flowmeter 12, finally accesses pyrolysis gas and recycle collector 15, the high temperature pyrolysis processing unit is in anaerobic ring
Under border, macromolecular substances are cracked into the flammable lower-molecular substance of hydrogen, methane, carbon monoxide etc at high temperature, there are also burnt
The solid residues such as the liquid products such as oil, solvent naphtha and carbon black；The combustible gas that pyrolysis generates by after purified treatment with special storage
Cryopreservation device stores.
Pyrolytic reaction device shown in 2 with reference to the accompanying drawings, the specific control process of the pyrolytic reaction are as follows: when pyrolysis starts,
The heating tape 25 on starting cooling water cycle water pump 14 and gas conduit is controlled by entire machine control device, works as cycle water energy
Enough steady flows, and after gas conduit is heated to suitable temperature, generally 200 DEG C or so, heating furnace 2 is lighted a fire, igniting
When, by air quantity setting in furnace in smaller flow, with more stable in furnace when guarantee igniting；At the same time, equably by wind in furnace
Amount tunes up, and pyrolysis reactor 3 is enable to be brought rapidly up to 600 DEG C, beginning high-efficiency thermal decomposition material, in reaction process, material pyrolysis
The rate for generating gas, is having certain fluctuation at first, at unstable state, is being adjusted by device tail end venting valve
Deflation rate is controlled, to guarantee that the operating pressure substantially constant of system is maintained at 3 ~ 5k Pa, when pyrolytic reaction carries out a period of time
Afterwards, pyrolysis gas yield enters stable state substantially, and gas production is big at this time, steady air current, and there is no need to adjust for pressure regulating valve；Heat
After solution is reacted into the stabilization sub stage, start that vapor is added into pyrolysis container, it is therefore an objective to which the quality that can reduce carbon residue makes object
Expect more thorough pyrolysis.
The heating method is the heating of gas type heating stove 2, and pyrolysis gas passes sequentially through the cooling of chimney cooler 7 and passes through coke
Oil interceptor 8 collects tar, then the sour gas remover 11 by filling alkaline solution, it is therefore an objective to which filtering solid particles are simultaneously inhaled
Sour gas in pyrolysis gas is received, with the equipment at anticorrosion rear portion, later by gas flowmeter 12, pyrolysis gas is finally accessed and collects
Device 15 is also provided with the devices such as pressure gauge 17,21, gas sample collector 13 in system, in order to detect pyrolysis gas ingredient and
The air pressure of combustion gas and air input.
The gas that the pyrolytic reaction generates successively passes through tar filter filtering, gas-drying apparatus drying and active carbon mistake
Filter filtering purifies to realize；Tar and other impurities are filtered out by tar filter；By gas-drying apparatus, remove in gas
The vapor containing band, can guarantee the gas more dried in this way；Finally pass through active carbon filter, in adsorbed gas
The impurity contained guarantees the cleaning of gas.
The present invention is by collecting medical garbage sorting, then no specially treated requirement is sub-elected by way of artificial separation
Garbage raw material, then high-temperature sterilization processing is carried out to these garbage raw materials by high-temperature sterilization unit, then by magnetic separation, selection by winnowing and
The mode of gravity jigging classifies to the rubbish being selected into；The magnetic metal separated, aluminium, glass, sandstone etc. can be by recycling
Department's processing, realizes the recycling of utility in this kind of medical waste, other content of organics separated are higher
Rubbish is then handled by high temperature pyrolysis, and available form of energy is converted to, and facilitates the waste for reducing resource, has minimizing
The feature that degree is high, secondary pollution is small and energy recovery rate is high.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of medical garbage sorting recovery and high temperature pyrolysis processing method, which is characterized in that the treatment of!medical waste process
It include: categorised collection, artificial separation, high-temperature sterilization, primary comminution, mechanical sorting, secondary crushing, high temperature pyrolysis processing, pyrolysis
Gas purified treatment and pyrolysis gas are collected.
2. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: institute
State categorised collection process specifically, during the generation of rubbish by the rubbish of separate sources according to different type separate collection simultaneously
It is stored in different containers, classified collection device is placed in each rubbish source of medical institutions.
3. a kind of medical garbage sorting recovery according to claim 2 and high temperature pyrolysis processing method, it is characterised in that: right
Pathologic waste or radioactive substance or various chemical reagent or discarded drug or histoorgan or infectious pathogen
Or the waste of adherency infectious pathogen is transported through collection and processing.
4. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: institute
It states high-temperature sterilization unit and the rubbish of categorised collection is subjected to high-temperature sterilization processing, the process of the high-temperature sterilization processing are as follows: to institute
The steam of 138 DEG C ~ 160 DEG C of input in the sterilization tank of high-temperature sterilization unit is stated, pressure rises to 4 ~ 8 atmospheric pressure, and the retention time is
20 ~ 50 minutes；After high-temperature sterilization processing, rubbish is inputted into preliminary grinding device by pipeline and carries out pulverization process, the sterilizing
High-temperature steam in tank then enters gas cooling purification device and carries out cooling and purifying processing.
5. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: will
Rubbish after the high-temperature process is tentatively crushed, and the crushing process is the condition progress pulverization process in sealing.
6. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing system, it is characterised in that: institute
Stating mechanical sorting process includes: to be separated the magnetic metal in rubbish by way of magnetic separation；It will by way of selection by winnowing
Light materials and heavy substance sort out in rubbish, and light materials are mainly paper, fiber and macromolecule organic, and heavy substance is main
It is metal, sandstone and glass；By way of gravity jigging by rubbish by density variation isolate the lighter organic matter of density and
The heavier inorganic matter of density.
7. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: institute
Stating secondary pulverizing process is that the rubbish sorted out is carried out second under conditions of closed to crush, and keeps the partial size of rubbish small
In 2mm.
8. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: institute
State high temperature pyrolysis processing be under oxygen-free environment, macromolecular substances are cracked at high temperature hydrogen, methane, carbon monoxide and
Tar, solvent naphtha liquid product and carbon black solid residue；The combustible gas that pyrolysis generates by after purified treatment with special storage
Device storage.
9. a kind of medical garbage sorting recovery according to claim 1 and high temperature pyrolysis processing method, it is characterised in that: institute
The combustible gas for stating refuse pyrolysis generation passes sequentially through chimney cooler (7) cooling and collects tar by tar well (8), then
By filling the sour gas remover (11) of alkaline solution, with the equipment at anticorrosion rear portion, later by gas flowmeter, most
Access pyrolysis gas recycling collector (15) afterwards.
10. a kind of medical garbage sorting recovery according to claim 9 and high temperature pyrolysis processing method, it is characterised in that:
The pyrolysis gas purified treatment specifically: pyrolysis gas successively passes through tar filter filtering, gas-drying apparatus drying and activity
Carbon filter filtering, filters out tar and other impurities in tar filter；By gas-drying apparatus remove in gas containing band
Vapor, finally by the impurity in active carbon filter adsorbed gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571390.2A CN109737419A (en) | 2018-12-21 | 2018-12-21 | Medical waste classification and high-temperature pyrolysis treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571390.2A CN109737419A (en) | 2018-12-21 | 2018-12-21 | Medical waste classification and high-temperature pyrolysis treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109737419A true CN109737419A (en) | 2019-05-10 |
Family
ID=66360957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811571390.2A Pending CN109737419A (en) | 2018-12-21 | 2018-12-21 | Medical waste classification and high-temperature pyrolysis treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369446A (en) * | 2019-07-15 | 2019-10-25 | 浙江大学台州研究院 | Pharmacy waste plasma gasification and melting processing system and method |
| CN111351049A (en) * | 2020-04-13 | 2020-06-30 | 贾辉 | Miniaturized harmless medical waste thermal decomposition processing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590483A (en) * | 2008-05-28 | 2009-12-02 | 北京锦奥华荣科技有限公司 | Sorting recycling method under the medical waste high pressure steam sterilization |
| CN105674280A (en) * | 2016-03-21 | 2016-06-15 | 安徽未名生物环保有限公司 | Solid-liquid-gas three-state cooperative garbage pyrolysis treatment system |
| CN106433799A (en) * | 2016-09-23 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | System and method for disposing household garbage |
| CN207646131U (en) * | 2017-12-23 | 2018-07-24 | 河南省康源生物工程技术有限公司 | A kind of medical waste pyrolysis treatment device |
-
2018
- 2018-12-21 CN CN201811571390.2A patent/CN109737419A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590483A (en) * | 2008-05-28 | 2009-12-02 | 北京锦奥华荣科技有限公司 | Sorting recycling method under the medical waste high pressure steam sterilization |
| CN105674280A (en) * | 2016-03-21 | 2016-06-15 | 安徽未名生物环保有限公司 | Solid-liquid-gas three-state cooperative garbage pyrolysis treatment system |
| CN106433799A (en) * | 2016-09-23 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | System and method for disposing household garbage |
| CN207646131U (en) * | 2017-12-23 | 2018-07-24 | 河南省康源生物工程技术有限公司 | A kind of medical waste pyrolysis treatment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369446A (en) * | 2019-07-15 | 2019-10-25 | 浙江大学台州研究院 | Pharmacy waste plasma gasification and melting processing system and method |
| CN111351049A (en) * | 2020-04-13 | 2020-06-30 | 贾辉 | Miniaturized harmless medical waste thermal decomposition processing apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Pyrolysis characteristic and kinetic analysis of sewage sludge using model-free and master plots methods | |
| CN104178226B (en) | One way of life refuse pyrolysis comprehensive resource treatment system and method | |
| CN101972769B (en) | Medical rubbish harmless resource comprehensive utilization system | |
| CN109737418A (en) | Medical waste classification and high-temperature pyrolysis treatment system | |
| CN109679672B (en) | Reaction system and method for preparing gas fuel by catalytic pyrolysis of organic solid waste | |
| CN1769397A (en) | Device and method for suppressing harmful substances in waste tail gas by using pyrolysis gasification treatment technology | |
| CN103449701A (en) | Method and device for refinery sludge carbonization treatment and carbon recovery | |
| CN204039347U (en) | One way of life refuse pyrolysis comprehensive resource treatment system | |
| CN103846273B (en) | The method and system of process circuit plate | |
| CN102311743A (en) | Microwave pyrolysis based biomass recycling and integrated treatment method and equipment | |
| CN106635079A (en) | Solid waste RDF treating method | |
| DK1850977T3 (en) | Microwave gasification, pyrolysis and recycling of waste and other organic materials | |
| CN106734080A (en) | The system and method for processing solid waste | |
| CN105417918A (en) | Technical method for treating civil sludge through microwave pyrolysis | |
| CN103666505A (en) | Equipment for reducing and transforming household garbage or organic waste into energy resources | |
| CN104501171A (en) | RDF (refuse derived fuel) pyrolysis and gasification system | |
| CN106493156A (en) | A kind of house refuse and the system and method for sludge mixed processing | |
| CN109737419A (en) | Medical waste classification and high-temperature pyrolysis treatment method | |
| CN107022363A (en) | A kind of continuous biomass pyrolysis gas is reversely flowd back towards with charcoal gas cogeneration facility | |
| CN203781995U (en) | Sludge treatment system | |
| CN104109560B (en) | Method for preparing industrial fuel gas through pyrolysis treatment of garbage | |
| CN107699294A (en) | A kind of Lutao formula town and country debirs harmless resource utilization handling process | |
| CN106493155A (en) | A kind of domestic garbage treating system and method | |
| CN113877940B (en) | Medical waste treatment process | |
| CN204097408U (en) | A kind of medical waste cracking refining equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190510 |