CN112439763A - Medical waste disposal device and disposal method - Google Patents
Medical waste disposal device and disposal method Download PDFInfo
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- CN112439763A CN112439763A CN201910795402.8A CN201910795402A CN112439763A CN 112439763 A CN112439763 A CN 112439763A CN 201910795402 A CN201910795402 A CN 201910795402A CN 112439763 A CN112439763 A CN 112439763A
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- 239000002906 medical waste Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000010865 sewage Substances 0.000 claims abstract description 7
- 239000000110 cooling liquid Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 9
- 230000001954 sterilising effect Effects 0.000 description 8
- 238000004659 sterilization and disinfection Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000001354 calcination Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 150000002013 dioxins Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
- B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L11/00—Methods specially adapted for refuse
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Ceramic Engineering (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The present invention relates to a medical waste disposal device and a medical waste disposal method. The treatment device comprises: a steam sterilizer having a sealed chamber and a cooling chuck, the sealed chamber containing medical waste to be treated; a vacuum pump in communication with the sealed chamber; the steam source is communicated with the sealed cavity and injects steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed cavity; the cooling source is communicated with the cooling chuck wall and injects cooling liquid into the cooling chuck wall to cool the steam in the sealed cavity to form condensate; the sewage treatment system is communicated with the sealed chamber and receives the condensate discharged by the sealed chamber; and a filter in communication with the vacuum pump and receiving gas within the sealed chamber drawn by the vacuum pump. The invention can carry out harmless treatment and resource utilization on the medical waste.
Description
Technical Field
The invention relates to the field of waste recycling, in particular to a medical waste disposal technology.
Background
According to the statistics of the World Health Organization (WHO), the developed countries generate about 0.5kg of medical waste per sickbed per day, and the developing countries can generate 0.5 kg-2.5 kg of medical waste per sickbed per day. The total amount of medical waste produced in the united states is about 260 million tons per year, while 500 tons per day are produced in india. In China, with the improvement of the living quality and medical technology of people, the number of people who carry out large-scale surgical operations increases, the types and the number of disposable medical supplies rapidly increase, and the generation amount of Chinese medical wastes is in a steady rising trend.
Medical waste sources are wide, and the accurate and strict statistics of the generated amount is difficult. The prospective industry research estimates according to the number of sickbeds of medical institutions, the utilization rate of the sickbeds and the average quantity of medical wastes generated by each sickbed per day, the total medical waste yield in 2018 in China may break through 206.01 million tons, and the market scale of the medical wastes reaches 76.9 million yuan.
The amount of medical waste generated is greatly increased, further increasing the pressure for treating medical waste. For medical waste generated in large quantities, the currently common practice (especially in developing countries) is small-scale incineration or sanitary landfills. However, the 2004 policy document and the "stockholm convention" of the world health organization emphasize that the risks of particulate matter, heavy metals, acid gases, carbon monoxide, pathogens, dioxins and the like caused by the incineration of medical wastes and the problem of water source pollution possibly caused by landfill are considered. In fact, many industrialized countries are phase out of medical incinerators and exploring technologies that do not produce any dioxins. Countries such as the united states, irish, portugal, canada, and germany have completely shut down or suspended medical waste incinerators.
At present, the single disposal mode mainly based on centralized incineration, which is promoted in 2003, continues to be used in China. However, the construction of a hazardous waste centralized treatment center has the disadvantages of difficult site selection, large capital investment and long approval and construction time, which makes many enterprises dedicated to hazardous waste treatment prohibitive. Therefore, the centralized disposal industry is expected to solve the problem of medical waste backlog obviously in a short time and is impossible in remote cities and towns.
It is expected that the medical waste yield will rapidly increase every year, if the traditional single centralized incineration disposal is continued instead of exploring a new more diversified and flexible mode to solve, the medical waste disposal industry in the future will only have higher and higher load factor, and a series of problems caused by the medical waste will also be more and more serious. Therefore, in the face of problems of environmental pollution, medical waste resale and the like caused by poor medical waste supervision and falling-behind treatment technologies, the problems are fundamentally solved and only depend on new more-and-more-rigorous policies and new more-convenient and advanced technologies. For example, at the technical level, the country encourages adoption of non-incineration technologies, and therefore, there is an urgent need to develop more alternative technologies to replace the conventional centralized incineration technology.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a medical waste disposal apparatus and a medical waste disposal method, which can effectively replace the conventional incineration technology and recycle medical waste.
In order to achieve the above object, the present invention provides a medical waste disposal device, comprising:
a steam sterilizer having a sealed chamber and a cooling chuck, the sealed chamber containing medical waste to be treated;
a vacuum pump in communication with the sealed chamber;
the steam source is communicated with the sealed cavity and injects steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed cavity;
the cooling source is communicated with the cooling chuck wall and injects cooling liquid into the cooling chuck wall to cool the steam in the sealed cavity to form condensate;
the sewage treatment system is communicated with the sealed chamber and receives the condensate discharged by the sealed chamber;
a filter in communication with the vacuum pump and receiving gas within the sealed chamber drawn by the vacuum pump.
In an embodiment of the present invention, the medical waste disposal device further includes: and a cement kiln for receiving the medical waste and the cement raw material treated by the steam sterilizer.
In one embodiment of the present invention, the filter includes a filtering mechanism and an adsorbing mechanism.
In an embodiment of the present invention, the filtering mechanism is a filter screen with a pore size less than or equal to 0.2 μm, and the adsorbing mechanism is an activated carbon adsorbing mechanism.
In order to achieve the above object, the present invention further provides a method for disposing medical waste, comprising:
delivering the medical waste to be treated into a sealed chamber of a steam sterilizer;
vacuumizing the sealed chamber by a vacuum pump;
injecting steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed cavity through a steam source, and maintaining for a preset time to sterilize the medical waste to be treated;
injecting cooling liquid into a cooling clamping wall of the steam sterilizer through a cooling source, reducing the temperature in the sealed cavity to a first temperature, and cooling the steam in the sealed cavity to form condensate;
pumping gas in the sealed chamber through the vacuum pump, and filtering and adsorbing the gas through a filter;
and carrying out harmless treatment on the condensate discharged from the sealed chamber through a sewage treatment system.
In another embodiment of the present invention, the method for disposing of medical waste further comprises:
the medical waste and the cement raw materials treated by the steam sterilizer are sent to a cement kiln to prepare cement.
In another embodiment of the present invention, after cooling, further comprising:
and repeatedly pumping the gas and the water in the sealed cavity by the vacuum pump until the sealed cavity becomes dry.
In another embodiment of the present invention, the first temperature is 80 ℃.
In another embodiment of the present invention, the predetermined time is 45 minutes.
In another embodiment of the invention, the filter filters the gas through a screen having a pore size of 0.2 microns or less and adsorbs the gas through an activated carbon adsorption mechanism.
The invention adopts a high-temperature and high-pressure treatment mode, so that the medical waste can be disinfected, the process of crushing the medical waste is reduced, and the equipment and operation cost is saved. The invention can also carry out resource utilization on the treated medical waste, thereby changing waste into valuable.
The medical waste after sterilization, hydration and carbonization can be obtained after high-temperature and high-pressure treatment, the content of harmful substances is low, and the dried tail gas does not need to be treated and can reach the standard after being directly discharged.
The invention can also send the sterilized, hydrated and carbonized medical wastes and cement raw materials into a cement kiln to prepare cement. In addition, in the cement preparation process, the waste gas and dust discharged by calcination can be collected by a kiln tail bag dust collector and then can be used as a cement raw material to be re-calcined in a kiln, no dangerous waste fly ash is generated, inorganic components in the treated medical waste are all solidified in the crystal lattice of clinker in the calcination process, the final product is a cement product, and residual residues needing secondary treatment cannot be generated.
Drawings
FIG. 1 is a schematic view of the medical waste disposal apparatus of the present invention;
fig. 2 is a flowchart of a method for disposing medical waste according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a medical waste disposal apparatus 100, which mainly includes a steam sterilizer 10, a vacuum pump 20, a steam source 30, a cooling source 40, a sewage treatment system 50, and a filter 60. The steam sterilizer 10 has a sealed chamber 101 and a cooling jacket 102, the sealed chamber 101 containing medical waste to be treated, the cooling jacket 102 being positionable, for example, around the sealed chamber 101. The vacuum pump 20 is in communication with the sealed chamber 101. The steam source 30 is communicated with the sealed chamber 101 and injects steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed chamber 101. The cooling source 40 is in communication with the cooling chuck wall 102 and injects a cooling fluid (e.g., cooling water) into the cooling chuck wall 102 to cool the vapor in the sealed chamber 101 to form a condensate. The wastewater treatment system 50 is in communication with the sealed chamber 101 and receives condensate drained from the sealed chamber 101. The filter 60 is in communication with the vacuum pump 20 and receives the gas within the sealed chamber 101 that is drawn by the vacuum pump 20.
Preferably, the disposal device 100 of the present invention further comprises a cement kiln 70 for receiving the medical waste and the cement raw material treated by the steam sterilizer 10.
In the present invention, the filter 60 may include a filtering mechanism and an adsorption mechanism. The filtering mechanism can be a filter screen with the pore diameter less than or equal to 0.2 micron, and the adsorption mechanism can be an activated carbon adsorption mechanism.
As shown in fig. 2, the method for disposing medical waste of the present invention mainly includes:
step S21, delivering the medical waste to be treated into the sealing chamber 101 of the steam sterilizer 10;
step S22, evacuating the sealed chamber 101 by the vacuum pump 20;
step S23, injecting steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed chamber 101 through a steam source 30, and maintaining for a preset time, such as 45 minutes, so as to sterilize the medical waste to be treated;
step S24, injecting cooling liquid into the cooling chuck 102 of the steam sterilizer 10 through the cooling source 40, reducing the temperature in the sealed chamber 101 to a first temperature, for example, 80 ℃, and cooling the steam in the sealed chamber 101 to form condensate;
step S25, pumping the gas in the sealed chamber 101 through the vacuum pump 20 and filtering and adsorbing the gas through the filter 60, for example, filtering the gas through a filter screen with a pore size less than or equal to 0.2 μm and adsorbing the gas through an activated carbon adsorption mechanism, that is, the condensate and the gas in the steam sterilizer 10 are both filtered and adsorbed to be harmless.
Step S26 is to perform a harmless treatment on the condensate discharged from the sealed chamber 101 by the sewage treatment system 50, for example, a sodium hypochlorite generator may be used to adjust the concentration of the disinfectant, and the collected condensate may be sterilized to meet a predetermined requirement.
Preferably, the disposal method of the present invention may further include: the medical waste and the cement raw material treated by the steam sterilizer 10 are sent to a cement kiln 70 to prepare cement.
And, after cooling, may further include: the gas and water remaining in the hermetic chamber 101 are repeatedly pumped by the vacuum pump 20 until the hermetic chamber 101 is dried.
More specifically, the present invention primarily utilizes the steam sterilizer 10 as the primary means of the disposal process, as the medical waste enters the sealed chamber 101 of the steam sterilizer 10, into the pre-vacuum stage. Because the sterilization medium is set to be saturated steam, the interference of non-condensable gas such as air must be eliminated, most of the air is firstly pumped out to reach a certain vacuum degree, and then high-pressure steam is filled. In the invention, the pulsating vacuum pumping is repeatedly carried out for three to four times, so that high-pressure steam can be ensured to be easier to permeate into the material, the material is more fully contacted with the steam, and the sterilization effect is finally ensured. High-pressure steam with permeability enters a sealed cavity 101 of a steam sterilizer 10, the temperature in the cavity is raised to be more than 180-250 ℃ within 10 minutes, the pressure reaches 1.5-3 MPa, and after the high-pressure steam is maintained for 45 minutes, the sterilization effect can meet the requirement that the sterilization logarithm value of microorganisms in medical waste is more than 4 or the microorganism inactivation rate is more than 99.99% in medical waste high-temperature steam centralized processing engineering specifications (trial). After the high-temperature and high-pressure steam sterilization treatment in the steam sterilizer 10, the harmful medical waste is hydrated and carbonized into virus-free and harmless general municipal solid waste (for example, into small carbide pieces).
After the high-temperature and high-pressure steam sterilization process is completed, the sealed chamber 101 of the steam sterilizer 10 is evacuated. And the vacuum pump is used for strongly vacuumizing, so that the gas in the cavity can be exhausted, and the drying is finished. Discharged gas is discharged after being subjected to harmless treatment such as filtration, adsorption and the like by a filter (the filtration pore diameter is less than or equal to 0.2 mu m, the filtration efficiency is more than 99.999 percent). The discharged gas can reach the corresponding standard in terms of medical health and environmental protection.
Finally, the medical waste and the cement raw materials after being sterilized, hydrated and carbonized can be added into a raw material mill of a cement kiln to be mixed, the mixture is ground and dried in the raw material mill, the mixture is collected by a bag dust collector and then enters a raw material homogenizing warehouse for homogenization, and then the mixture enters a rotary kiln through a predecomposition system for incineration to prepare the cement.
The invention adopts a high-temperature and high-pressure treatment mode, so that the medical waste can be disinfected, the process of crushing the medical waste is reduced, and the equipment and operation cost is saved. The invention can also carry out resource utilization on the treated medical waste, thereby changing waste into valuable.
The medical waste after sterilization, hydration and carbonization can be obtained after high-temperature and high-pressure treatment, the content of harmful substances is low, and the dried tail gas does not need to be treated and can reach the standard after being directly discharged.
The invention can also send the sterilized, hydrated and carbonized medical wastes and cement raw materials into a cement kiln to prepare cement. In addition, in the cement preparation process, the waste gas and dust discharged by calcination can be collected by a kiln tail bag dust collector and then can be used as a cement raw material to be re-calcined in a kiln, no dangerous waste fly ash is generated, inorganic components in the treated medical waste are all solidified in the crystal lattice of clinker in the calcination process, the final product is a cement product, and residual residues needing secondary treatment cannot be generated.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A medical waste disposal device, comprising:
a steam sterilizer having a sealed chamber and a cooling chuck, the sealed chamber containing medical waste to be treated;
a vacuum pump in communication with the sealed chamber;
the steam source is communicated with the sealed cavity and injects steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed cavity;
the cooling source is communicated with the cooling chuck wall and injects cooling liquid into the cooling chuck wall to cool the steam in the sealed cavity to form condensate;
the sewage treatment system is communicated with the sealed chamber and receives the condensate discharged by the sealed chamber;
a filter in communication with the vacuum pump and receiving gas within the sealed chamber drawn by the vacuum pump.
2. The medical waste disposal device of claim 1, further comprising:
and a cement kiln for receiving the medical waste and the cement raw material treated by the steam sterilizer.
3. The medical waste disposal device of claim 1 or 2, wherein said filter comprises a filter mechanism and an adsorption mechanism.
4. The medical waste disposal device according to claim 3, wherein said filter means is a filter net having a pore size of 0.2 μm or less, and said adsorption means is an activated carbon adsorption means.
5. A method of disposing medical waste, comprising:
delivering the medical waste to be treated into a sealed chamber of a steam sterilizer;
vacuumizing the sealed chamber by a vacuum pump;
injecting steam with the temperature of 180-250 ℃ and the pressure of 1.5-3 MPa into the sealed cavity through a steam source, and maintaining for a preset time to sterilize the medical waste to be treated;
injecting cooling liquid into a cooling clamping wall of the steam sterilizer through a cooling source, reducing the temperature in the sealed cavity to a first temperature, and cooling the steam in the sealed cavity to form condensate;
pumping gas in the sealed chamber through the vacuum pump, and filtering and adsorbing the gas through a filter;
and carrying out harmless treatment on the condensate discharged from the sealed chamber through a sewage treatment system.
6. The method of disposing of medical waste according to claim 5, further comprising:
the medical waste and the cement raw materials treated by the steam sterilizer are sent to a cement kiln to prepare cement.
7. The method of disposing of medical waste as claimed in claim 5, further comprising, after cooling:
and repeatedly pumping the gas and the water in the sealed cavity by the vacuum pump until the sealed cavity becomes dry.
8. The method of claim 5, wherein the first temperature is 80 ℃.
9. A method of medical waste disposal according to claim 5 or 6 or 7 or 8 wherein said predetermined period of time is 45 minutes.
10. The method according to claim 9, wherein the filter filters the gas through a filter mesh having a pore size of 0.2 μm or less and adsorbs the gas through an activated carbon adsorption mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795402.8A CN112439763A (en) | 2019-08-27 | 2019-08-27 | Medical waste disposal device and disposal method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795402.8A CN112439763A (en) | 2019-08-27 | 2019-08-27 | Medical waste disposal device and disposal method |
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| CN112439763A true CN112439763A (en) | 2021-03-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597157A (en) * | 2004-07-26 | 2005-03-23 | 高世泽 | Harmless treatment method for medical refuse and its equipment |
| CN103394106A (en) * | 2013-07-30 | 2013-11-20 | 山东新华医疗器械股份有限公司 | Steam sterilizer and sterilization process |
| CN204542966U (en) * | 2015-04-17 | 2015-08-12 | 李玉霞 | A kind of discharge pipe line of sterilizer vacuum pump |
| CN205163697U (en) * | 2015-08-14 | 2016-04-20 | 山东新华医用环保设备有限公司 | Simple sterilizer |
| CN206687929U (en) * | 2016-12-16 | 2017-12-01 | 上海嘉洲环保机电设备有限责任公司 | Medical waste high temperature sterilizer peculiar to vessel |
| CN210936397U (en) * | 2019-08-27 | 2020-07-07 | 宁波诺客环境科技有限公司 | Medical waste disposal device |
-
2019
- 2019-08-27 CN CN201910795402.8A patent/CN112439763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597157A (en) * | 2004-07-26 | 2005-03-23 | 高世泽 | Harmless treatment method for medical refuse and its equipment |
| CN103394106A (en) * | 2013-07-30 | 2013-11-20 | 山东新华医疗器械股份有限公司 | Steam sterilizer and sterilization process |
| CN204542966U (en) * | 2015-04-17 | 2015-08-12 | 李玉霞 | A kind of discharge pipe line of sterilizer vacuum pump |
| CN205163697U (en) * | 2015-08-14 | 2016-04-20 | 山东新华医用环保设备有限公司 | Simple sterilizer |
| CN206687929U (en) * | 2016-12-16 | 2017-12-01 | 上海嘉洲环保机电设备有限责任公司 | Medical waste high temperature sterilizer peculiar to vessel |
| CN210936397U (en) * | 2019-08-27 | 2020-07-07 | 宁波诺客环境科技有限公司 | Medical waste disposal device |
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