CN101972769B - Medical rubbish harmless resource comprehensive utilization system - Google Patents
Medical rubbish harmless resource comprehensive utilization system Download PDFInfo
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- CN101972769B CN101972769B CN2010105329163A CN201010532916A CN101972769B CN 101972769 B CN101972769 B CN 101972769B CN 2010105329163 A CN2010105329163 A CN 2010105329163A CN 201010532916 A CN201010532916 A CN 201010532916A CN 101972769 B CN101972769 B CN 101972769B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Abstract
The invention discloses a medical rubbish harmless resource comprehensive utilization system. A comprehensive utilization method comprises the following steps of: sterilizing and disinfecting medical rubbish at high temperature and high pressure, sorting out disposable syringes, containers, trays and other medical hard plastics and disposable infusion tubes, infusion bags, blood bags, rubbish liquid bags and other medical soft plastics, collecting through splitting and classification, granulating, cleaning, drying and recycling; sorting out common waste plastics, recycling after cleaning, drying and granulating; sorting out paper plastic packaging materials, pulping, dewatering and recovering paper pulp; sorting out syringe needles, scalpels and other metal items and infusion bottles, smears and other glass items, and recycling at specialized rubbish recycling departments; and crushing, dewatering and drying the rest items, sending to produce RDF (Refuse Derived Fuel), and selling the RDF or using the RDF as a fuel of a steam boiler. Medical rubbish is completly recycled at high value. The medical rubbish resources do not emit pollutants during recycling and do not bring any harm to environment.
Description
Technical field
The present invention relates to the innoxious comprehensive utilization of resources of cover medical waste system, this system belongs to the dangerous solid waste process field of environmental protection industry.
Background technology
Medical waste is the solid waste that medical institutions, physiological and pathological research institution etc. produce; Mainly comprise excision thing, surgical dressing (gauze, absorbent cotton etc.), disposable transfusion device, disposable syringe, blood bag, have the treatment refuse of body fluid; Epidemic victim's blood, phlegm, secretion, vomitus, clinical laboratory, discarded sample, the laboratory animal corpse the like waste of pathology department.Medical waste contains a large amount of viruses, bacterium and chemical agent, is a kind of to the great material of environmental hazard.With its Basel Convention of listing control hazardous waste transboundary movement and disposal thereof in, the Chinese government also listed it in 1998 " national hazardous waste register " in the world.Because medical waste has characteristics such as total space pollution, acute infection and latent infection, its harmfulness is very big.If manage badly, deal with improperly and will bring out great environmental pollution accident, serious harm human beings'health.
Along with improving constantly of living standard, people pay attention to the quality of life quality and living environment more, and the processing of medical waste has received people's great attention! The most frequently used processing method of medical waste has:
Landfill disposal: the medical waste landfill not only takies a large amount of soils; Also be difficult to accomplish innoxious, volume reduction ratio is littler, and the percolate of medical waste landfill contains a large amount of viruses, bacterium and chemical agent; Meeting water-supply source and soil environment have been brought long-term harm; The pernicious gases such as biogas that landfill produces bring pollution etc. to air, these insoluble problems, and serious threat is to peripheral resident's health.
Burning disposal: medical waste is through high temperature incineration, and poisonous and harmful substance is thoroughly decomposed and is transformed into inanimate matter, and it is remarkable to burn back solid waste minimizing effect, is processing method comparatively completely.
Application number is 200820212569.4 utility model patent; Introduced a cover pyrolytic incineration furnace apparatus; This equipment adopts the mode that pyrolysis is fired again to carry out burning disposal; Medical waste is decomposed under the indoor high temperature anaerobic condition of a combustion, gasification, and the short chain gas after the decomposition gets into dual firing chamber and carries out purification of combustion, realizes harmless treatment.
The patent No. is the utility model patent of 02232562.X, is earlier medical waste to be fermented in negative pressure cabin, and it is combustion-supporting that the biogas of generation is sent into incinerator, and the medical waste after the fermentation process realizes harmless treatment through Roarykiln and twice burning of vertical incinerator.
Also useful plasma technology burns the equipment of medical waste, and the temperature of plasma can realize harmless treatment with medical waste moment high-temperature gasification, no residue about 10,000 ℃.But the complicated investment of plasma processing power consumption and expense very big, the equipment operation is all very high, and the equipment operation maintenance specification requirement is higher, and the flue gas after the burning still need be handled.
The burning disposal of medical waste has been burnt it with the medical plastic of high value etc., causes the huge waste of resource, burns and also will consume a large amount of auxiliary fuels, is not inconsistent the requirement with sustainable development.Simultaneously, the pollutants such as dioxin that produce in the medical waste combustion process bring serious harm to environment and human health; Burning the flying dust and the slag that produce is that danger wastes still needs security landfill to handle equally, and these have all seriously limited the development of burning disposal.
Disinfect: the harm of medical waste is that it contains a large amount of viruses, bacterium and chemical agent, adopts sterilization methods such as high temperature and high pressure steam, chemical agent, microwave, radiation, can kill microorganisms such as virus, bacterium:
The patent No. is 200410035466.1 patent of invention; It is a kind of pulsation replacing process that adopts the sterilization of steam increasing temperature and pressure, vacuumizes drying; To method and the equipment thereof that medical waste is carried out harmless treatment, this method sterilization completely, does not produce secondary pollutions such as flue gas.
Application number is 200720043414.8 patent of invention, is to adopt to clear up still feeding high temperature and high pressure steam, and medical waste is carried out sterilization treatment.
The patent No. is 200410026158.2 patent of invention, is the effect that utilizes microwave, and medical waste is depolymerized, and changes into complicated organic compound the process of nontoxic simple compounds.
Application number is 200810113500.0 patent of invention, is to utilize radiation sterilization ground method, the medical waste after pulverizing is carried out radiation sterilization handle.
Above-mentioned medical waste disinfection treatment method is widely used, can thoroughly kill wherein bacterium and virus, fundamentally solves innoxious problem.But disinfect the final disposal that is not medical waste.
Turning sludge into fuel is handled: because the content of plastics, toilet paper, staple is very big in the medical waste, calorific value is higher, can be used to make fuel, carries out recovery of resources with the form of heat energy.The comparatively ripe method of utilizing has: one of which is that pyrolysis gas is combustion gas after purified treatment with the gasification of medical waste low temperature pyrogenation, can be used for the burning heating; This method still need be handled the lime-ash after the pyrolysis.They are two years old; Be with after the medical waste harmless treatment; Through extrusion dehydration, pulverizing, oven dry; Add additives (also can mix an amount of sawdust or powder of straw according to actual needs again) such as desulfurization, heavy metal passivation, stir after the special process device fabrication goes out efficiency of combustion height, free of contamination RDF (garbage derivatived fuel), RDF can be used as boiler or other fuel with hot equipment.
If can earlier recoverable materials such as medical plastic, paper material be sorted out and recycle, more remaining combustible is carried out just science, reasonable, perfect more of heat energy recycle.
The processing method of above-mentioned medical waste and relevant technical equipment system be imperfection all, can only be a part in the complete innoxious comprehensive utilization of resources of the medical waste system.
Recycling treatment: though medical waste is harmful discarded object; But medical flexible plastics such as medical duroplasts such as disposable syringe wherein, matter holding box, dish and one-time infusion tube, infusion bag, blood bag, waste fluid bag all are that the high-quality non-toxic plastic is processed; This type article have very high recycling and are worth, through just fabrication cycles utilization once more after innoxious, the purified treatment; Packing case wherein etc. contains the stationery article, also can reclaim narrow resources paper pulp through making beating; That common plastics wherein also can pass through is innoxious, recycle after the purified treatment; Also have glass, metal etc. to have more the value of recycling; Combustibles such as remaining foreign material such as cotton goods, wet pad can be used for producing RDF and reclaim heat energy.It is thus clear that medical waste can all be recycled as resource.
If will carry out the recycling of resource to medical waste, the innoxious comprehensive utilization of resources of complete medical waste system should comprise: harmless treatment equipment, perfect screening installation and advanced three major parts of recycling equipment are formed reliably.This system with the medical waste harmless treatment after, effectively classify again, and sorted each component carried out the recycling of high value, only in this way can realize whole recyclings of medical waste.In the removal process of resource, the medical waste treatment system is the problem of considered energy savings and environmental protection also.
The content of invention
The problem that the present invention will solve just provides the innoxious comprehensive utilization of resources of the medical waste system of technological package advanced person, system perfecting; This system not only can carry out harmless treatment with the medical waste that perplexs the whole society for a long time, but also valuable waste material is wherein carried out the recycling of resource.
The innoxious comprehensive utilization of resources of medical waste system; At first medical waste is carried out high temperature high pressure process through counteracting tank; Sterilization completely, clear up processing; Reach innoxious requirement, and then classify effectively according to the value and the characteristics of each composition of medical waste: medical flexible plastic class article such as medical duroplasts class article such as disposable syringe that will be wherein, matter holding box, dish and one-time infusion tube, infusion bag, blood bag, waste fluid bag sort out, and compile through the partition classification; Through pelletizing, cleaning, drying, packing, can realize classification recovery medical plastic particle again; Wherein litter decoration etc. is contained the stationery article sort out, through cleaning, making beating, scalping, fine filtering, remove that silt particle, pulp-water separate, reclaim high-quality paper pulp behind the extrusion dehydration; Common waste plastics class article are wherein sorted out, after cleaning, extrusion dehydration, oven dry, granulation, reclaim plastic grain; Category of glass article such as metal species article such as wherein syringe needle, scalpel and infusion bottle, smear are sorted out, sell toward professional salvage collection department and recycle; The residue article are that flammable type of article mix through extrusion dehydration, pulverizing, oven dry, interpolation, and explained hereafter RDF such as compression clamp dog are as the fuel use of steam boiler.So far, medical waste is able to the recycling of whole high values.
For solving the technical problem of the innoxious comprehensive utilization of resources of medical waste; The innoxious comprehensive utilization of resources of medical waste of the present invention system comprises: charging equipment, HTHP digesting equipment, screening installation, medical plastic reclaimer, common plastics reclaimer, pulp recovery equipment, RDF production equipment, steam boiler equipment, sewage disposal device, waste gas treatment equipment, coal gasification apparatus, formation such as control and safety features automatically.
Charging equipment is made up of material loading hopper, hoisting mechanism, the hopper that connects material, disintegrating machine and charge mechanism etc.
The HTHP digesting equipment is made up of counteracting tank, charging hermatic door mechanism, discharging hermatic door mechanism, steam fill valve, vavuum pump and vacuum pumping valve, air bleeding valve and digestion solution drain valve etc.
Screening installation is made up of devices such as hopper, batcher, sorting conveyer, sorting table, magnetic separator, letter sorting thing conveyer belt and letter sorting thing transport boxes.
The medical plastic reclaimer is made up of devices such as a minute dismantling device, pelleter, cleaning machine, drying machine and packing machines.
The common plastics reclaimer is made up of devices such as cleaning machine, extruding-desiccation machine, comminutor and packing machines.
Pulp recovery equipment is by disintegrating machine, beater, scalping, fine filtering machine, remove devices such as silt particle device, pulp-water seperator, spiral dewater and packing machine and form.
The RDF production equipment is made up of devices such as disintegrating machine, extruding-desiccation machine, dryer, mixing and blending machine and compression block-making machines.
Steam boiler equipment is made up of devices such as feed pump, ion-exchanger, combustion and steam boiler, gas combustion apparatus and electric control cabinets.
Sewage disposal device is made up of devices such as grille well, collecting-tank, aerating regulation pond, air supporting machine, hydrolytic tank, contact-oxidation pool, MBR (membrane bioreactor), clear water reserviors, sludge-tank, sludge press filtration machine, pipeline dredge pump, elevator pump, pipeline and valves.
Automatically control and safety features are made up of devices such as senior management computer, Programmable Logic Controller, temperature/pressure adjusting apparatus/controller, burner control, magnetic valve, breaker, A.C. contactor and electrothermal relays.
Adopt above-mentioned system equipment, all recycled after the harmless treatment of medical waste process, the sorting, realize the benign cycle of resource.
As improvement of the present invention, can be equipped with the coal gas fuel facility in the system, to improve the technical merit of system.The coal gas fuel facility is made up of devices such as coaling gear, gas generator, ash handling equipment, air-blast device, dust arrester and electrical controls.
As further improvement of the present invention, also can be equipped with the waste gas purification treatment facility in the system, to improve the technical merit of system.The waste gas purification treatment facility is made up of equipment such as air-introduced machine, sack cleaner, adsorbent equipment and air channels.
The innoxious comprehensive utilization of resources of medical waste system is in the removal process of resource; The sewage that is produced recycles after treatment; Percolate is cleared up through HTHP and is treated as digestion solution, and digestion solution is sent in the sewage disposal device after flocculation again, and system does not have the harmful waste water discharging; The waste gas that contains dust, foul smell and pernicious gas etc. that produces, qualified discharge after purified treatment, system does not have the harmful exhaust discharging; Sewage sludge is delivered in the RDF production equipment and is utilized, and system does not have harmful waste sludge discharge.It is thus clear that the innoxious comprehensive utilization of resources process of medical waste does not have harmful " three wastes " pollutant emission, does not bring any harm to environment.The innoxious comprehensive utilization of resources of medical waste system helps realizing the harmony of human and environment and the sustainable development of human society.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is one embodiment of the present invention sketch map
Fig. 2 is a kind of embodiment sketch map of charging equipment among Fig. 1
Fig. 3 is a kind of embodiment sketch map of HTHP digesting equipment among Fig. 1
Fig. 4 is a kind of embodiment sketch map of screening installation among Fig. 1
Fig. 5 is a kind of embodiment sketch map of medical plastic recoverying equipment among Fig. 1
Fig. 6 is a kind of embodiment sketch map of common waste plastics recovery equipment among Fig. 1
Fig. 7 is a kind of embodiment sketch map of pulp recovery equipment among Fig. 1
Fig. 8 is a kind of embodiment sketch map of RDF production equipment among Fig. 1
Fig. 9 is a kind of embodiment sketch map of sewage disposal device among Fig. 1
The specific embodiment
Referring to Fig. 1; The innoxious comprehensive utilization of resources of medical waste of the present invention system is by a cover material loading equipment 1, HTHP digesting equipment 2, screening installation 3, medical waste plastics recovery equipment 4, common waste plastics recovery equipment 5, pulp recovery equipment 6, RDF production equipment 7, sewage disposal device 8, steam boiler equipment 9, control and safety features 10 etc. are formed automatically.
Referring to Fig. 2, charging equipment 1 is put into material loading hopper 101 with medical waste; After delivering to a high position by hoisting mechanism 102; Material loading hopper upset is automatically poured material in the hopper 103 that connects material into, then falls to carry out coarse crushing (bag is unpacked, broken to packing) in the disintegrating machine 104, gets in the HTHP digesting equipment 2 through charge mechanism 105 again; So far, accomplish the overall process of the contactless automatic charging of medical waste.
Material loading hopper and hoisting mechanism working in reciprocating mode, the volume of material loading hopper and the hoisting velocity of hoisting mechanism will be able to satisfy the requirement of the maximum processing capability of system.
Disintegrating machine and charge mechanism only just work when filler in counteracting tank, and filler is closed filling body after finishing.For preventing that the percolate water clock from polluting the charging hermatic door mechanism of counteracting tank, filling body is provided with the hermetically-sealed construction that prevents the percolate water clock.
For improving the working environment in workshop, also for reducing the influence to atmospheric environment, the top of charging equipment will install the stainless steel seal bootr additional, and the waste gas that contains frowziness with collection is sent to purified treatment.
Referring to Fig. 3, HTHP digesting equipment 2, broken medical waste gets in the counteracting tank 112 through charging door 111; After finishing, charging closes charging door hermatic door 113 and discharging opening hermatic door 114; Open steam fill valve 115 and add steam injection, beginning increasing temperature and pressure, heat-insulation pressure keeping then; Medical waste is cleared up, opened 116 discharge opeings of digestion solution drain valve after fixing time; Open air bleeding valve 117 pressure releases to normal pressure, open vacuum pump 118 is opened vacuum pumping valve 119, and counteracting tank 112 is vacuumized dehydration, then pressurize a period of time; Open steam fill valve 115 increasing temperature and pressure, heat-insulation pressure keeping once more.Open 116 discharge opeings of digestion solution drain valve after clearing up end, open 114 dischargings of discharging hermatic door at last, the innocent treatment procedure of medical waste finishes.
Counteracting tank will feed pressure air in jar when reinforced, so that in material, form air flue, be beneficial to the even heating of steam and the smooth eliminating of digestion solution.
The maximum operating temperature of counteracting tank, pressure and retention time should guarantee thoroughly to kill bacterium and virus wherein, can also be convenient to cleaning and removing and remove with musculature boilings such as excision thing and small white mouses to complete aquation.Simultaneously, the pressure that counteracting tank vacuumizes with hold time, particularly the liquid in wherein bottle and the bag is by abundant sucking-off should to guarantee medical waste, and the number of times of the pulsation periodic duty of high pressure and vacuum is no less than the number of times of regulation.
Send to purified treatment in the stainless steel seal bootr that the air bleeding valve outlet of counteracting tank and vavuum pump air exit can cause the charging equipment top.
Referring to Fig. 4; Screening installation 3; Strict classification is the prerequisite of medical waste comprehensive utilization; Medical waste after the harmless treatment is through hopper 120 material loadings, and to sorting conveyer 122, both sides are provided with artificial separation platform 123, the letter sorting personnel put into letter sorting thing transport box 125 with medical duroplasts class article such as the disposable syringe in the rubbish, matter holding box, dishes by batcher 121 even feedings; Medical flexible plastic class article such as one-time infusion tube, infusion bag, blood bag, waste fluid bag are put into letter sorting thing transport box 126; Common plastics class article are placed on the letter sorting thing conveyer belt 127; Carton and paper based packaging material are placed on the letter sorting thing conveyer belt 128; Category of glass article such as medicine bottle, infusion bottle, smear are put into letter sorting thing transport box 129; The metal that metal species article such as syringe needle, scalpel and magnetic separator 131 are selected is all put into letter sorting thing transport box 130; The remaining article in letter sorting back are sent in the fuel slug production equipment 7.
Article in the letter sorting thing transport box 128,130 are sold toward professional salvage collection department and are recycled.
Referring to Fig. 5, medical waste plastics recovery equipment 4 will be from medical hard, the flexible plastic class article in the letter sorting thing transport box 125,126; Sending into partition operation 135 breaks; Remove the accessory of the unlike materials such as rubber seal, screen pack material, crown cap and syringe needle in the plastic tool, similar homogeneity article are compiled, when certain material can be sent to processing after a certain amount of: plastics are cut into particle through pelleter 136; In cleaning machine 137, clean up; Oven dry in the drying machine 138, packing machine 139 packings are sold, and the medical plastic particle of similar high-quality also can be by processing and utilization once more.
Referring to Fig. 6; Common plastics reclaimer 5; The common waste plastics of being sent here by letter sorting thing conveyer belt 127 removes impurity such as silt through cleaning machine 141 cleaning and removing, extruding-desiccation machine 142 dehydrations, comminutor 143 granulations, packing machine 144 packings are sold, with the recycling of plastic grain form.
Comminutor can produce harmful steam when molten plastic, for improving the working environment in workshop, also for reducing the harm to atmospheric environment, the top of comminutor will install the stainless steel seal bootr additional, sends to purified treatment to collect these harmful waste gas.
Referring to Fig. 7; Pulp recovery equipment 6; By sorting litter decoration and the paper based packaging material that thing conveyer belt 128 is sent here; Isolate paper pulp through disintegrating machine 151 fragmentations, beater 152, the pulp-water mixture through scalping 153, fine filtering machine 154, remove technical process such as silt particle device 155, pulp-water seperator 156, spiral dewater 157 and packing machine 158 and reclaim the high-quality paper pulp, can carry out the utilization once more of resource.
Referring to Fig. 8, RDF production equipment 7, the letter sorting of being sent here by sorting conveyer 122 remains article; Behind disintegrating machine 161, extruding-desiccation machine 162, dryer 163; Add desulfurization and heavy metal deactivator 164, also can add materials 165 such as sawdust or powder of straw, through technical process such as mixing and blending machine 166 and compression block-making machines 167 according to actual conditions; But produce the fuel of extensive use, with all the other combustibles of situation recovery of energy recovery.
Devices such as dryer, mixing and blending machine and compression block-making machine need install the stainless steel seal bootr additional and send to purified treatment with the waste gas of collecting dust-laden and peculiar smell.
Referring to Fig. 9; Sewage disposal device 8; Entering aerating regulation pond 171 was carried out homogeneous, is all measured after production waste was removed bigger suspension through grid 170, got into air supporting machine 173 by going out water pump 172 liftings, and air-dissolving air-float can be removed part suspension and a part of polymer substance in the sewage.Then get into hydrolysis acidification pool 174; Effect through anaerobic bacteria and amphimicrobe; Remove portion C OD and the larger molecular organics of difficult for biological degradation is decomposed into the small organic molecule of easily biological-degradable, improve biochemical, be beneficial to of the removal of follow-up aerobic stage for organic pollution.Waste water after the decomposition gets into contact-oxidation pool 175 and MBR (membrane bioreactor) 176, and good appearance fermentation consumes most organic matter, and the clear water after the Separation of Solid and Liquid of film will purify is sent into clear water reserviors 177 and supplied systemic circulation to use; Activated sludge drains in the sludge-tank 179 through slush pump 178, and mud send RDF production equipment 7 after filter press 180 processed.
Send into behind the leachate collection of medical waste and clear up processing in the counteracting tank to reduce its harm; Digestion solution is sent in the aerating regulation pond of sewage disposal device after flocculation again.
Because MBR is the most advanced both at home and abroad at present sewage disposal technology, perfect sewage disposal device makes sewage can reach the water quality of drinking public water supply after treatment, when stable water flow quality is used to clean, can guarantee the requirement that the medical plastic particle is clean.
Automatically control and safety features 10, automatic control equipment can be realized the whole-course automation operation of the innoxious comprehensive utilization of resources system equipment of medical waste, satisfies the production requirement of each subsystem and total system equipment; Safety features can provide safe and reliable protection to the startup of blower fan, water pump, motor, overload etc., avoids the damage that causes system equipment bigger; Igniting and operation to burner provide omnidistance real-time monitoring, have the flame-out safety protection function of combustion gas, avoid the generation of explosion accident; When control and safety features 10 start exception handles automatically when breaking down automatically, also provide sound and light alarm, alert simultaneously.Guarantee that municipal refuse, sludge resource fully utilize process and carry out reliably continuously.
The present invention has characteristics such as succinct practicality, environmental protection, low energy consumption.
As improvement of the present invention, also can be equipped with coal gas fuel facility 20 in the system, to improve adaptability, economy and the technical merit of system.Coal gas fuel facility 20 is made up of devices such as gas generator body, coaling machine structure, ash disposal mechanism, air-blast device, desulfation dust-extraction device and electrical control cabinets.
Selecting cheap coal for use for the operating cost that reduces system acts as a fuel; For improving the scope of application of system; Make combustion gas after can be when forbidding that coal-fired area is used, help environmental protection with the fuel gas buring heating again coal, RDF or other solid fuel gasification.Heater in the system can be different by heating-up temperature, and reasonable Arrangement to low heated in sequence, helps making full use of of heat energy by height.
As further improvement of the present invention, also can be equipped with waste gas purification treatment facility 30 in the system, to improve the adaptability and the technical merit of system.Waste gas purification treatment facility 30 is made up of air-introduced machine, deduster and adsorbent equipment etc.
Waste gas purification treatment facility 30 is extracted by air-introduced machine the waste gas that contains dust, foul smell and pernicious gas etc. that produces in the system production process out through stainless steel seal closure, exhaust piping; Send into qualified discharge after wherein dust of deduster filtering, the adsorbent equipment absorption harmful components wherein, can avoid the operation of system that environment is brought harm.
The present invention is not limited to above-mentioned embodiment, and no matter system constitutes or how technological process changes, how different lectotype selection is, every with the high temperature and high pressure steam sterilization, clear up the mode harmless treatment, reclaim medical plastic, common plastics respectively with particle form; Reclaim discarded paper wrapper with pulp form; Reclaim the treatment process and the treatment system of all the other flammable type of materials with the form of RDF, all drop within the scope of the present invention's protection.
In addition, every equipment such as supply of coal gas fuel and exhaust-gas treatment that on basis of the present invention, install additional improve, and to improve the system of whole adaptability, economy and technical merit, all constitute infringement of the present invention.
Claims (10)
1. a cover medical waste innoxious comprehensive utilization of resources system comprises charging equipment, HTHP digesting equipment, screening installation, medical plastic reclaimer, common plastics reclaimer, pulp recovery equipment, RDF (garbage derivatived fuel) production equipment, steam boiler equipment, sewage disposal device, waste gas treatment equipment, coal gasification apparatus, control and safety features automatically; It is characterized in that: described charging equipment (1) is made up of material loading hopper, hoisting mechanism, the hopper that connects material, disintegrating machine and charge mechanism; Described HTHP digesting equipment (2) is made up of counteracting tank, charging hermatic door mechanism, discharging hermatic door mechanism, steam fill valve, vavuum pump, vacuum pumping valve, air bleeding valve and digestion solution drain valve; Described screening installation (3) is made up of hopper, batcher, sorting conveyer, sorting table, magnetic separator, letter sorting thing conveyer belt and letter sorting thing transport box; Described medical plastic reclaimer (4) is made up of a minute dismantling device, pelleter, cleaning machine, drying machine and packing machine; Described common plastics reclaimer (5) is made up of cleaning machine, extruding-desiccation machine, comminutor and packing machine; Described pulp recovery equipment (6) by disintegrating machine, beater, scalping, fine filtering machine, remove silt particle device, pulp-water seperator, spiral dewater and packing machine and form; Described RDF production equipment (7) is made up of disintegrating machine, extruding-desiccation machine, dryer, mixing and blending machine and compression block-making machine; Described steam boiler equipment (8) is made up of feed pump, ion-exchanger, combustion and steam boiler, gas combustion apparatus and electric control cabinet; Described sewage disposal device (9) is made up of grille well, collecting-tank, aerating regulation pond, air supporting machine, hydrolytic tank, contact-oxidation pool, MBR (membrane bioreactor), clear water reserviors, sludge-tank, sludge press filtration machine, pipeline dredge pump, elevator pump, pipeline and valve; Described automatic control and safety features (10) are made up of senior management computer, Programmable Logic Controller, temperature/pressure adjusting apparatus/controller, burner control, magnetic valve, breaker, A.C. contactor and electrothermal relay.
2. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: material loading hopper in the described charging equipment (1) and hoisting mechanism working in reciprocating mode, the volume of material loading hopper and the hoisting velocity of hoisting mechanism will be able to satisfy the requirement of the maximum processing capability of system; Disintegrating machine and charge mechanism only just work when filler in counteracting tank, and filler is closed charge mechanism after finishing, and pollute the charging hermatic door mechanism of counteracting tank for preventing the percolate water clock, and charge mechanism is provided with the hermetically-sealed construction that prevents the percolate water clock.
3. the innoxious comprehensive utilization of resources of medical waste according to claim 1 and 2 system is characterized in that: the top of material loading hopper, the hoisting mechanism in the described charging equipment (1), the hopper that connects material, disintegrating machine and charge mechanism installs the stainless steel seal bootr additional sends to purified treatment with the waste gas that collection contains frowziness.
4. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: the counteracting tank in the described HTHP digesting equipment (2) is when reinforced; To in jar, feed pressure air; So that in material, form air flue, be beneficial to the even heating of steam and the smooth eliminating of digestion solution.
5. according to claim 1 or the innoxious comprehensive utilization of resources of 4 described medical wastes system; It is characterized in that: maximum operating temperature, pressure and the retention time of the counteracting tank in the described HTHP digesting equipment (2); Can guarantee thoroughly to kill wherein bacterium and virus; Can also be convenient to cleaning and removing and remove with the musculature boiling to complete aquation; Simultaneously, the pressure that counteracting tank vacuumizes with hold time, can guarantee liquid in the medical waste by fully sucking-off, and the number of times of the pulsation periodic duty of high pressure and vacuum is no less than the number of times of regulation.
6. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: the comminutor in the described common plastics reclaimer (5) can produce harmful plastics steam when molten plastic; For improving the working environment in workshop; Minimizing is installed the stainless steel seal bootr additional to the harm of atmospheric environment above comminutor, send to purified treatment to collect these harmful waste gas.
7. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: add the interpolation equipment of desulfurization and heavy metal deactivator behind the dryer in the described RDF production equipment (7), then mix again stirring, the compression clamp dog produce satisfactory RDF; Dryer, mixing and blending machine and compression block-making machine can produce the waste gas of a large amount of dust-ladens and pernicious gas when moving; For the working environment that improves the workshop, reduce pollution to atmospheric environment; Said apparatus will install the stainless steel seal bootr additional, sends to purified treatment to collect these harmful waste gas.
8. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: the MBR in the described sewage disposal device (9) is the most advanced both at home and abroad at present sewage disposal technology; Perfect sewage disposal device; Make sewage can reach the water quality of drinking public water supply after treatment, when stable water flow quality is used to clean, can guarantee the requirement that the medical plastic particle is clean.
9. according to claim 1 or the innoxious comprehensive utilization of resources of 7 described medical wastes system; It is characterized in that: the device that the combustion and steam boiler in dryer in the described RDF production equipment (7) and the steam boiler equipment (8) need heat; For reducing the operating cost of system; Also be the range of application of raising system, adopt cheap coal to act as a fuel, coal gasification apparatus (20) is set in system; With making combustion gas after coal, RDF or other solid fuel gasification, help environmental protection with the fuel gas buring heating again.
10. the innoxious comprehensive utilization of resources of medical waste according to claim 1 system; It is characterized in that: the partial devices in described charging equipment (1), HTHP digesting equipment (2), common plastics reclaimer (5) and the RDF production equipment (7) can produce the waste gas that contains dust, foul smell and pernicious gas when operation; For reducing its harm to environment; Waste gas purification treatment facility (30) is set in the system; Harmful exhaust is removed harmful components wherein through the filtration of sack cleaner, the absorption of adsorbent equipment, and the gas after the purified treatment just can directly discharge in the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105329163A CN101972769B (en) | 2010-11-05 | 2010-11-05 | Medical rubbish harmless resource comprehensive utilization system |
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| CN2010105329163A CN101972769B (en) | 2010-11-05 | 2010-11-05 | Medical rubbish harmless resource comprehensive utilization system |
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| CN101972769B true CN101972769B (en) | 2012-10-31 |
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| CN102125926B (en) * | 2011-04-02 | 2012-12-12 | 江苏亿尔等离子体科技有限公司 | High temperature and high pressure on-site treating device for medical solid wastes |
| CN104475429A (en) * | 2014-12-04 | 2015-04-01 | 杭州运邦环保技术有限公司 | Novel medical waste disposal method and novel medical waste disposal device |
| CN104926045A (en) * | 2015-06-29 | 2015-09-23 | 安徽省安庆市皖清环保科技有限公司 | Second-class microcosmic treatment technology for medical care waste water |
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| CN108826301A (en) * | 2018-05-14 | 2018-11-16 | 潍坊护理职业学院 | A kind of medical environment-friendly refuse disposal installation |
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