CN101590485A - The method of fuel is handled and prepared to medical waste - Google Patents
The method of fuel is handled and prepared to medical waste Download PDFInfo
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- CN101590485A CN101590485A CNA2008101135087A CN200810113508A CN101590485A CN 101590485 A CN101590485 A CN 101590485A CN A2008101135087 A CNA2008101135087 A CN A2008101135087A CN 200810113508 A CN200810113508 A CN 200810113508A CN 101590485 A CN101590485 A CN 101590485A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The present invention relates to a kind of medical waste and handle and prepare the method for fuel, handle and sorting its early stage of adopting the following step to carry out medical waste: (1) refuse collection, (2) letter sorting, (3) pulverize, (4) sorting is divided into four classes according to the proportion and the magnetic of material with medical waste, one class is lighter material, second class is heavier material, and the 3rd class is a magnetisable material, and the 4th class is remaining material; (5) first kind, second class and the 3rd class material are carried out the sterilization of different modes, the 4th class material is directly sealed briquet; (6) burn and recycle: second class and the 3rd class material are recycled respectively, the 4th class material is burned, first kind material is pulverized, with bituminous coal powder according to 100: the ratio of 30-40 is mixed, add suitable binding agent simultaneously, after adding the water mixing,, form patch fuel after the air dry by the make-up machine pressure forming.The present invention helps the recycling of physical resources, and reduces to the consumption of the energy with to the pollution of atmosphere.
Description
Technical field
The present invention relates to a kind of medical waste and handle and prepare the method for fuel, be mainly used in medical waste and other have the recovery and the final processing of communicable Harmful Waste.
Background technology
Has communicable solid waste for medical waste etc., people have adopted multiple mode to handle, wherein the major technology direction is to burn, by burning microbial body is decomposed fully, no longer has any infectiousness, for example No. 200510048910.8 applications for a patent for invention of China disclose a kind of medical refuse circulating fluidized bed incinerating method, it is with the inert bed material of lime stone as recirculating fluidized bed, the sour gas neutralization reactions such as hydrogen chloride that produce in the calcium oxide that lime stone calcination at high temperature generates and hypochlorous acid in the medical waste and the pyrolytic incineration, after medical waste feeds the close phase section of incinerator combustion chamber, fluidised high temperature limestone particle inert bed material rapids is mixed with being, heat up, refuse pyrolysis, gasification, be divided into the gas-solid two-phase, gaseous product after the pyrolysis enters the suspension section combustion chamber to be continued to burn, a part of fine size is entrained in the suspension section combustion chamber with the light solid product of density and burns away after the pyrolysis, another part coarse size or density is high stays in the close phase section combustion chamber and burn, air-flow is being carried lime stone circulation fluidized bed material and flammable fine grained secretly and is being entered the gas solid separation combustion chamber and burn away, and lime stone and particle separate from air-flow in the gas solid separation combustion chamber sends close phase section combustion chamber back to and continue circulating combustion.In this way, medical waste is thoroughly decomposed and conversion, and in burning process, realize the deleterious acidic gas that may occur in the flue gas is held neutralization, to reduce pollution atmosphere by adding alkaline matter.This mode can effectively solve the infectiousness problem of medical waste, but owing to adopted the mode of burning, also brought fuel consumption, recoverable material to loss and problem such as atmosphere pollution, and Chinese 200310109675.1 applications for a patent for invention disclose a kind of medical waste treatment process, this technology comprises the steps: the first step, by waste conveyor medical waste is sent into the integrated treatment device, and sealing; Second step was 138 ℃-160 ℃ a steam to integrated treatment device delivery temperature, made pressure rise to 4-8 atmospheric pressure, and the retention time is 20-50 minute; The 3rd step, open integrated treatment device lower end garbage emission device, make medical waste enter gatherer in the sealing mode, steam is discharged from its chimney; In the 4th step, the medical waste in the gatherer is sent into separator by conveying mechanism; The 5th step went out the metal in the medical waste, battery sorting; In the 6th step, the medical waste after sorting is transported to the pulverizer pulverizing; In the 7th step, the rubbish after pulverizing is transported to the processing place.The high-temperature steam sterilization because this mode is gone ahead of the rest, carry out letter sorting to a certain extent then, reclaim the metal that to recycle and should not adopt the burning disposal battery, improved the combustion characteristics of material to a certain extent, but final processing is still by burning disposal, the problem of bringing because of burning interdependent.
But, on the material formation of medical waste, except a small amount of material needs special the processing, the composition of most of material is similar with general sexual life rubbish, and wherein the material of part medical waste itself has good recycling value, for example disposable plastic goods and fibre, why these medical wastes can not equally be recycled with house refuse, The key factor be wherein with may carry by causing a disease and dangerous microorganism, if collect and recycle as existing house refuse, to bring very big danger to environment and practitioner, one of them important way of recycling just is prepared into solid fuel with combustible wherein.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the invention provides a kind of medical waste and handle and prepare the method for fuel, adopt this method, the recycling of useful material in the realization medical waste of limit greatly, reduced the material ratio of burning, therefore help the recycling of physical resources, and help to reduce to the consumption of the energy with to the pollution of atmosphere.
The present invention realizes that the technical scheme of above-mentioned purpose is: the method for fuel is handled and prepared to a kind of medical waste, after will sorting, it carries out sterilization treatment, isolate first kind material then based on fiber and other organic materials, described first kind material is pulverized, with bituminous coal powder according to 100: the ratio of 30-40 is mixed, add suitable binding agent simultaneously, and can add combustion adjuvant, stabilizing agent, in oxidant and the antismoke agent any one and several, after adding the water mixing, by the make-up machine pressure forming, form patch fuel after the air dry, described first kind material obtains from medical waste by following manner:
(1) refuse collection: adopt the collection mode of sealing, carry out the collection of medical waste;
(2) letter sorting: separate for bulk materials that wherein can recycle separately and bulk material, collect separately and recycle, unclassified stores focuses on;
(3) pulverize: under the condition of sealing, the whole materials that focus on are pulverized, pulverized according to the mode that the disintegrating apparatus of selecting for use can adopt once pulverizing and secondary to pulverize;
(4) sorting: carry out mechanical sorting under the condition of sealing, proportion and magnetic according to material are divided into four classes, and a class is lighter material, and its main component is fiber and other macromolecule organics; Second class is heavier material, and its main component is ore deposit class materials such as metal and sandstone; The 3rd class is a magnetisable material, wherein has iron and other metals of high level; The 4th class is remaining material, wherein mostly is organic matter;
(5) sterilization:, carry out ethylene oxide sterilizing to first kind material; To the second class material, carry out the mode of chlorine class medicining liquid dipping and sterilize, to the 3rd class material, adopt the mode of chlorine class medicining liquid dipping to sterilize, to the 4th class material, send into follow-up burning facility behind the sealed package, do not carry out sterilization treatment in advance;
(6) burn and recycle: the first kind is used to prepare fuel, second class is as building materials raw material or other fill materials, the 3rd class material is used for technics of metallurgy mineral dressing, fine ore is used for metallurgy, CHARACTERISTICS OF TAILINGS SAND is as building materials raw material or other fill materials, and the 4th class material is sent into special-purpose incinerator and burned.
The invention has the beneficial effects as follows: owing to adopted the mode of classification sterilization, can be at the heterogeneity of different classes of material, the sterilization method that selection adapts to most reduces the sterilization expense thus, improves to solve benefit; By letter sorting, the material of large recyclable utilization is reclaimed, these materials constitute single, recycle to be worth greatly, are convenient to recycle separately, help improving the recovery value of material, reduce processing cost; Owing to carry out sorting, make the material more than 60% wherein have the possibility of recycling, reduced the quantity of refuse that needs burning thus, improved the recycling ratio of material, reduced and burned energy resource consumption and the atmosphere pollution that brings, obtained physical resources.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
The specific embodiment
At first, according to following manner medical waste is handled:
(1) refuse collection: adopt the collection mode of sealing, carry out the collection of medical waste;
(2) letter sorting: separate for bulk materials that wherein can recycle separately and bulk material, collect separately and recycle, unclassified stores focuses on;
(3) pulverize: under the condition of sealing, the whole materials that focus on are pulverized, pulverized according to the mode that the disintegrating apparatus of selecting for use can adopt once pulverizing and secondary to pulverize.
(4) sorting: carry out mechanical sorting under the condition of sealing, proportion and magnetic according to material are divided into four classes, and a class is lighter material, and its main component is fiber and other macromolecule organics; Second class is heavier material, and its main component is ore deposit class materials such as metal and sandstone; The 3rd class is a magnetisable material, wherein has iron and other metals of high level; The 4th class is remaining material, wherein mostly is organic matter;
(5) sterilization:, carry out ethylene oxide sterilizing to first kind material; To the second class material, carry out the mode of chlorine class medicining liquid dipping and sterilize, to the 3rd class material, adopt the mode of chlorine class medicining liquid dipping to sterilize, to the 4th class material, send into follow-up burning facility behind the sealed package, do not carry out sterilization treatment in advance;
(6) burn and recycle: the first kind, second class and the 3rd class material are recycled respectively, the 4th class material is sent into special-purpose incinerator burn.
In step (1), reply separate sources and different types of medical waste are collected separately, adopt different refuse containers to deposit, can not be suitable for processing mode of the present invention to wherein particular matter, should on the basis of collecting separately, handle separately according to pertinent regulations and common way, for example pathologic discarded object, radioactive substance or the like although these materials are listed the category of medical waste in, can not be sneaked into other medical wastes and carry out unified processing.What therefore, the present invention adapted to is not have the rubbish of independent process mode or the rubbish that needn't handle separately.
In step (2), collect separately with recoverable material bulk large, so that recycling separately, in the process that these letter sortings generally can rubbish produce, adopt independent container to need to sort the collection of the rubbish of handling and deposit, these rubbish of depositing separately are transported to the recycling place separately;
In step (3), adopt full closeding equipment to carry out the pulverizing of rubbish, in the disintegrating apparatus of sealing ultraviolet disinfection lamp to be set, so that the air that carries out wherein carries out disinfection, avoid carrying microorganism because of swimming in airborne particle, leak into space outerpace.
In step (4), adopt following manner to carry out mechanical sorting
(a) magnetic separation adopts magnetic plant with the magnetisable material separating treatment in the material, and these magnetisable materials can be used as metallurgical raw material and recycled;
(b) selection by winnowing: the feed separation that proportion is lighter is handled, and these materials mostly are fiber-like and other organic materials, can be used to make composite building material etc. after cleaning and pulverizing;
(c) gravity jigging: the material sorting process that proportion is bigger, these materials mostly are inorganic minerals such as stone sand and metal etc., can come out by the feed separation that further technique of preparing will wherein contain higher metal, as metallurgical raw material, remaining material can be used for building materials or carry out landfill, owing to wherein less contain organic matter and nuisance, generally can not produce pollution behind this material landfill, and not require complicated landfill yard ground processing underground water and atmosphere;
In step (5), adopt different sterilization methods that different materials is sterilized, wherein to first kind material, carry out ethylene oxide sterilizing; To the second class material, carry out the mode of chlorine class medicining liquid dipping and sterilize, to the 3rd class material, adopt the mode of chlorine class medicining liquid dipping to sterilize, to the 4th class material, send into follow-up burning facility behind the sealed package, do not carry out sterilization treatment in advance;
All kinds of materials after the sterilization are recycled respectively, are unsuitable for the 4th class material briquet of reuse, the burning that enters next step, in the burning mode as final processing mode.
For first kind material, adopt following manner to prepare solid burning block: described first kind material is pulverized, make its granularity below 60 orders, with bituminous coal powder according to 100: the ratio of 30-40 is mixed, add suitable binding agent simultaneously, and can add in combustion adjuvant, stabilizing agent, oxidant and the antismoke agent any one and several, after adding water and mixing, by the make-up machine pressure forming, form patch fuel after the air dry.
Described binding agent adopts one or more in the following material: starch, bentonite and loess.
Described combustion adjuvant adopts one or more in the following material: potassium nitrate, magnesium nitrate, sodium chloride, sodium nitrate, potassium permanganate, magnesite soil and potassium hyperchlorate.
Described stabilizing agent adopts one or more in the following material: barium nitrate, magnesium nitrate, calcium oxide, magnesia and sodium carbonate.
Described oxidant adopts one or more in the following material: hydrogen peroxide, nitric acid, sodium peroxide, potassium peroxide and peromag.
Described antismoke agent adopts one or more in the following material: NaOH, potassium hydroxide,, zinc nitrate, potassium hyperchlorate, quick lime, calcium nitrate and lithium nitrate.
Can select the adding proportion of above-mentioned additive according to prior art and experimental data.
Claims (10)
1. the method for fuel is handled and prepared to a medical waste, it is characterized in that medical waste is sterilized and sorting, isolate first kind material based on fiber and other organic materials, described first kind material is pulverized, with bituminous coal powder according to 100: the ratio of 30-40 is mixed, and adds suitable binding agent simultaneously, after adding the water mixing, by the make-up machine pressure forming, form patch fuel after the air dry, the concrete mode of described medical waste sterilization and sorting is:
(1) refuse collection: adopt the collection mode of sealing, carry out the collection of medical waste;
(2) letter sorting: separate for bulk materials that wherein can recycle separately and bulk material, collect separately and recycle, unclassified stores focuses on;
(3) pulverize: under the condition of sealing, the whole materials that focus on are pulverized, pulverized according to the mode that the disintegrating apparatus of selecting for use can adopt once pulverizing and secondary to pulverize.
(4) sorting: carry out mechanical sorting under the condition of sealing, proportion and magnetic according to material are divided into four classes, and a class is lighter material, and its main component is fiber and other macromolecule organics; Second class is heavier material, and its main component is ore deposit class materials such as metal and sandstone; The 3rd class is a magnetisable material, wherein has iron and other metals of high level; The 4th class is remaining material, wherein mostly is organic matter;
(5) sterilization:, carry out ethylene oxide sterilizing to first kind material; To the second class material, carry out the mode of chlorine class medicining liquid dipping and sterilize, to the 3rd class material, adopt the mode of chlorine class medicining liquid dipping to sterilize, to the 4th class material, send into follow-up burning facility behind the sealed package, do not carry out sterilization treatment in advance;
(6) burn and recycle: the first kind, second class and the 3rd class material are recycled respectively, the 4th class material is sent into special-purpose incinerator burn.
2. the method for fuel is handled and prepared to medical waste as claimed in claim 1, it is characterized in that: when described first kind material prepares solid burning block, also add in combustion adjuvant, stabilizing agent, oxidant and the antismoke agent any one and several.
3. the method for fuel is handled and prepared to medical waste as claimed in claim 1, it is characterized in that: adopt in the following material one or more at described binding agent: starch, bentonite and loess.
4. the method for fuel is handled and prepared to medical waste as claimed in claim 2, and it is characterized in that: described combustion adjuvant adopts one or more in the following material: potassium nitrate, magnesium nitrate, sodium chloride, sodium nitrate, potassium permanganate, magnesite soil and potassium hyperchlorate; Described stabilizing agent adopts one or more in the following material: barium nitrate, magnesium nitrate, calcium oxide, magnesia and sodium carbonate; Described oxidant adopts one or more in the following material: hydrogen peroxide, nitric acid, sodium peroxide, potassium peroxide and peromag; Described antismoke agent adopts one or more in the following material: NaOH, potassium hydroxide,, zinc nitrate, potassium hyperchlorate, quick lime, calcium nitrate and lithium nitrate.
5. handle and prepare the method for fuel as claim 1,2,3 or 4 described medical wastes, it is characterized in that: in step (1), adopt independent container to need to sort the collection of the rubbish of handling and deposit, these rubbish of depositing separately are transported to the recycling place separately.
6. the method for fuel is handled and prepared to medical waste as claimed in claim 5, it is characterized in that: in step (2), to collect separately and independent the processing according to the discarded object that pertinent regulations and common way should collect separately and handle separately, can not sneak in the unified medical waste of handling.
7. the method for fuel is handled and prepared to medical waste as claimed in claim 6, it is characterized in that: in step (3), adopt full closeding equipment to carry out the pulverizing of rubbish, in the disintegrating apparatus of sealing ultraviolet disinfection lamp will be set, air is carried out disinfection.
8. the method for fuel is handled and prepared to medical waste as claimed in claim 7, it is characterized in that: carry out described pulverizing according to the mode that the disintegrating apparatus of selecting for use adopts once pulverizing or secondary to pulverize.
9. the method for fuel is handled and prepared to medical waste as claimed in claim 8, it is characterized in that described step (4) adopts full closeding equipment to carry out the sorting of rubbish, in the screening installation of sealing ultraviolet disinfection lamp to be set, air is carried out disinfection, comprise magnetic separation, selection by winnowing and gravity jigging, described magnetic separation mode is for adopting magnetic plant with the magnetisable material separating treatment in the material, these magnetisable materials can be used as metallurgical raw material and are recycled, described selection by winnowing mode is that the feed separation that proportion is lighter is handled, these materials mostly are fiber-like and other organic materials, can after cleaning and pulverizing, be used to make composite building material, described gravity jigging mode is the material sorting process that proportion is bigger, these materials mostly are inorganic minerals such as stone sand and metal etc., can come out by the feed separation that further technique of preparing will wherein contain higher metal, as metallurgical raw material, remaining material is used for building materials or carries out landfill.
10. the method for fuel is handled and prepared to medical waste as claimed in claim 9, it is characterized in that: will classify the 4th class material, briquet, the burning that enters next step as through remaining material after the above-mentioned sorting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101135087A CN101590485A (en) | 2008-05-28 | 2008-05-28 | The method of fuel is handled and prepared to medical waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101135087A CN101590485A (en) | 2008-05-28 | 2008-05-28 | The method of fuel is handled and prepared to medical waste |
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| Publication Number | Publication Date |
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| CN101590485A true CN101590485A (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101135087A Pending CN101590485A (en) | 2008-05-28 | 2008-05-28 | The method of fuel is handled and prepared to medical waste |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736714A (en) * | 2014-01-17 | 2014-04-23 | 北京神雾环境能源科技集团股份有限公司 | Agglomeration method of municipal domestic garbage |
| CN106433703A (en) * | 2016-11-08 | 2017-02-22 | 湖南万容科技股份有限公司 | Circulating pyrolysis furnace and pyrolysis system having same |
| CN108397778A (en) * | 2018-01-25 | 2018-08-14 | 合肥龙之韵医药技术有限公司 | A kind of safe and efficient treatment of!medical waste incinerator |
| CN112191650A (en) * | 2020-08-07 | 2021-01-08 | 蔚复来(浙江)科技股份有限公司 | Resourceful treatment system and method for kitchen waste |
| CN112191651A (en) * | 2020-08-07 | 2021-01-08 | 蔚复来(浙江)科技股份有限公司 | Comprehensive resource treatment system and method for fruit and vegetable garbage and bamboo forest waste |
| CN114130798A (en) * | 2021-11-29 | 2022-03-04 | 高邮市环创资源再生科技有限公司 | Metal-containing hazardous waste treatment process |
-
2008
- 2008-05-28 CN CNA2008101135087A patent/CN101590485A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736714A (en) * | 2014-01-17 | 2014-04-23 | 北京神雾环境能源科技集团股份有限公司 | Agglomeration method of municipal domestic garbage |
| CN106433703A (en) * | 2016-11-08 | 2017-02-22 | 湖南万容科技股份有限公司 | Circulating pyrolysis furnace and pyrolysis system having same |
| CN108397778A (en) * | 2018-01-25 | 2018-08-14 | 合肥龙之韵医药技术有限公司 | A kind of safe and efficient treatment of!medical waste incinerator |
| CN112191650A (en) * | 2020-08-07 | 2021-01-08 | 蔚复来(浙江)科技股份有限公司 | Resourceful treatment system and method for kitchen waste |
| CN112191651A (en) * | 2020-08-07 | 2021-01-08 | 蔚复来(浙江)科技股份有限公司 | Comprehensive resource treatment system and method for fruit and vegetable garbage and bamboo forest waste |
| CN114130798A (en) * | 2021-11-29 | 2022-03-04 | 高邮市环创资源再生科技有限公司 | Metal-containing hazardous waste treatment process |
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Open date: 20091202 |