CN109609146A - Treatment of!medical waste method - Google Patents
Treatment of!medical waste method Download PDFInfo
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- CN109609146A CN109609146A CN201811445324.0A CN201811445324A CN109609146A CN 109609146 A CN109609146 A CN 109609146A CN 201811445324 A CN201811445324 A CN 201811445324A CN 109609146 A CN109609146 A CN 109609146A
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- medical waste
- treatment
- waste
- waste residue
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
Abstract
The invention discloses a kind for the treatment of of!medical waste methods, including pyrolytic gasification: under the conditions of negative oxygen, after medical waste is lighted 1400-1600 DEG C at a temperature of react 60 minutes or more in pyrolysis gasification furnace high temperature, 80cm or more should be maintained always by generating burning mixture and waste residue, the height that the waste residue is drained out remaining waste residue in reaction system but reaction system；Gas purification: the burning mixture, which enters in gas purifier, to be purified.Treatment of!medical waste method of the invention can be realized processing on the day of same day rubbish, a possibility that significantly reducing soil pollution, water pollution and air pollution, it realizes innoxious, minimizing, handle medical waste to recycling, be truly realized and most reasonable processing is carried out to medical waste minimizing.
Description
Technical field
The present invention relates to treatment of!medical waste field, in particular to a kind for the treatment of of!medical waste method.
Background technique
Medical waste is that abutment crosses patient blood, human body etc., and the pollution rubbish produced by hospital.Such as used
Cotton balls, Sha Bu, adhesive plaster, waste water, disposable medical appliance, postoperative waste products, expired drug etc..According to health ministry
The medical examining report of door shows there is space-pollution, the features such as acute infection and latent contact scar, disease due to medical waste
Poison, the harmfulness of germ are the tens of common house refuse, several hundred or even thousands of times.If dealt with improperly, will cause to environment
Serious pollution, it is also possible to the source as pestilence.
In conventional waste disposal method, landfill, compost etc. are not all suitable for medical waste, are usually all using burning
Method handle medical waste.
Although incineration method can be with most fast the innoxious of velocity interpolation rubbish, minimizing, recycling treatment, and has and occupy
The few advantage of land resource, but after industrially developed country is widely adopted, there is rubbish and give off dioxin after burning,
Serious secondary pollution is caused to environment, needs to put into additional producing line with purification gas pollutant.The equipment investment of burning
Greatly, and can not thoroughly abandon and overcome burning after waste residue there is still a need for the defects filled for the second time.Medical waste mainly at
It is divided into various disposable medical appliances, mostly plastic products, is more also easy to produce poison gas, burns, pyrolysis requires relatively general life
Rubbish is higher, and processing difficulty is bigger.
Properly settle the problem of outlet of medical waste, it has also become a very urgent vital task.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art medical waste it is increasingly tight to the pollution of environment
Weight, cannot achieve innoxious, minimizing, the defect for handling to recycling medical waste, provides a kind for the treatment of of!medical waste method.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind for the treatment of of!medical waste methods, include the following steps: (1) pyrolytic gasification: in negative oxygen condition
Under, after medical waste is lighted 1400-1600 DEG C at a temperature of react 60 minutes or more in pyrolysis gasification furnace high temperature, generate
Burning mixture and waste residue, the height that the waste residue is drained out remaining waste residue in reaction system but reaction system are answered
Always maintain 80cm or more, (2) gas purification: the burning mixture, which enters in gas purifier, to be purified.
In step (1), the temperature of the pyroreaction is preferably 1500-1600 DEG C.The pyrolysis gas selected in the present invention
The other conditions of the temperature combination step (1) of change, it is few to can be realized waste residue, burning mixture purity is high, the few effect of little particle
Fruit.
In step (1), it is more preferably 60-70 minutes that the reaction time of the pyroreaction, which is preferably 60 minutes or more,.
In step (1), the height of the waste residue is preferably maintained at 90cm or more, more preferably maintains 100cm or more.
In existing garbage incineration process, reaction system is discharged in waste residue in a continuous manner, and waste residue height is up to 30cm.This hair
Bright inventor is more advantageous to by continuously attempting to find the height of waste residue maintaining 80cm or more and reduces waste residue, improves doctor
Treat the burning conversion ratio of rubbish.
In a preferable embodiment of the invention, waste residue is discharged by speed controllable blanking device, the blanking
Device is preferably repeatedly pressure pin blanking device.
In the more preferably embodiment of the present invention one, the waste residue is located on a horizontal shelf, the horizontal shelf
On have multiple blanking holes, the blanking device of pressure pin repeatedly is arranged in the blanking hole and in the blanking hole with controlled
Mode does vertical movement repeatedly, falls to control waste residue from blanking hole, to realize control waste residue height simultaneously and be conducive to row
The effect of waste residue out.
In step (1), the medical waste includes medical waste that is unfermentable and/or fermenting.It is different from the past
Garbage incineration method, treatment of!medical waste method of the invention can also be used in the medical waste that do not fermented, can be realized and work as
The effect handled on the day of its rubbish.
Step carries out under the conditions of negative oxygen in (1), preferably can also carry out under the reducing conditions.The negative oxygen condition packet
Include anoxic or oxygen free condition.The biggish Cr of harm to the human body can be greatly reduced using negative oxygen condition2+And NOxGas reduces gas
The content of middle harmful components.
In step (1), the pyroreaction preferably carries out under agitation, and the stirring is preferably by setting
Agitating device at the top of the pyrolysis gasification furnace is realized.
In step (1), the waste residue that reaction system is discharged is discharged the pyrolytic gasification preferably by an agitating screw
Furnace.
In step (1), conventional sparking mode is used to light medical waste to carry out pyroreaction, in high-temperature reaction process
In do not need additionally to add combustion-supporting material, such as gasoline, kerosene, diesel oil, the pyroreaction can be realized and maintain to react
Temperature is at 1400-1600 DEG C.And conventional burning process, needing to add a large amount of combustion-supporting materials during the burning process could maintain to cure
Treat the lasting burning of rubbish.
In a preferable embodiment of the invention, the igniting uses combustible, such as dried firewood to light a fire.And show
Some burning process need to start using diesel oil incinerator, and the weight of required diesel oil is about 30 times of combustible mass of the present invention,
Also need additionally to add diesel oil in burning process to maintain in-furnace temperature, for maintaining the diesel oil weight of temperature to be also about the present invention
30 times of combustible mass.The present invention solves burning process using massive diesel-fuel as combustion-supporting material by the optimization of technique
Technical problem significantly reduces the processing cost of medical waste.
Preferably, the treatment of!medical waste method may also include step (3) storage: will be purified described flammable mixed
Gas is closed to be stored.
In an of the invention preferable embodiment, the purified burning mixture can be stored in one or with
On gas holder in.
Preferably, the treatment of!medical waste method may also include step (4) power generation: by the flammable mixing of storage
Gas is for generating electricity.The power generation can be used the fuel gas electricity-generating method of this field routine, for example, by generating set into
Row power generation.When the treatment of!medical waste method includes step (4), the gas holder preferably has storage gentle simultaneously
Punching effect, preferably to control generation steps.
The positive effect of the present invention is that:
(1) unfermentable medical waste can be carried out cracking completely be gasificated into can by treatment of!medical waste method of the invention
Mixed gas is fired, processing on the day of same day rubbish is realized, substantially shortens the process cycle of medical waste, medical waste is avoided to ferment
The waste water generated in journey penetrates into soil and pollutes, and saves the land occupation of destructor plant and avoids the stink of fermentation vat；
(2) treatment of!medical waste method of the invention is different from traditional burning process and condition, realizes medical waste
Complete cracking, imflammable gas high conversion rate generates without pernicious gases such as flue gases, environmentally friendly, harmless, power generation energy rate is high；
(3) medical waste of the invention is in pyrolytic gasification step, and it is combustion-supporting not need addition diesel oil, significantly reduces at rubbish
Cost is managed, it is energy saving, while the secondary pollution of diesel oil generation is avoided, content of ashes is low；
(4) waste particle after pyrolytic gasification is small, unharmful substance, can directly be processed into the dedicated sewer product of municipal administration；
(5) treatment of!medical waste method of the invention completely avoids the risk that medical waste pollutes again, is greatly reduced
It a possibility that soil pollution, water pollution and air pollution, realizes innoxious, minimizing, handle medical treatment to recycling
Rubbish is truly realized and carries out most reasonable processing to medical waste minimizing.
Detailed description of the invention
Fig. 1 is the processing equipment of the treatment of!medical waste method of present pre-ferred embodiments.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
As shown in Figure 1, the present invention provides a kind of Medical Waste Disposal System, including medical waste pyrolysis gasification furnace 1, gas
Body clarifier 2 and gas holder 3, the medical waste pyrolysis gasification furnace 1 are connected to by first pipe 4 with the gas purifier 2,
The gas purifier 2 is connected to by second pipe 5 with the gas holder 3；
The medical waste pyrolysis gasification furnace 1 is equipped with feed inlet 11, for entering the medical waste heat for medical waste
Solve the inside of gasification furnace 1；
The inside of the medical waste pyrolysis gasification furnace 1 is equipped with horizontal shelf 12, for carrying the medical waste；It is described
The side wall of medical waste pyrolysis gasification furnace 1 is equipped with manhole 13, carries out the igniting triggering medical rubbish for entering for staff
Rubbish pyrolytic gasification；
The inside of the medical waste pyrolysis gasification furnace 1 is additionally provided with pressure pin blanking device repeatedly, the pressure pin blanking device repeatedly
Including controller 14 and multiple pressure pins 15, the horizontal shelf 12 be equipped with multiple blanking holes, the pressure pin 15 be set to it is described under
Expect in hole, the controller 14 is electrically connected with the multiple pressure pin 15；
The inside of the medical waste pyrolysis gasification furnace 1 is additionally provided with screw blender below the horizontal shelf 12, uses
It is stirred in the waste residue fallen from the blanking hole；Specifically, the screw blender includes the stirring being electrically connected to each other
Screw rod 16 and gearbox 17, the gearbox 17 are used to adjust the mixing speed of the agitating screw 16；
The side wall of the medical waste pyrolysis gasification furnace 1 is additionally provided with slag notch 18, goes out at the slag notch 18 equipped with screw rod
Slag machine 19, for the waste residue to be discharged；The height of the furnace body of the pyrolysis gasification furnace is 35m, and the internal diameter of the furnace body can be
2m。
1 treatment of!medical waste method of embodiment the following steps are included:
(1) pyrolytic gasification: the medical waste on the same day is placed on the horizontal shelf 12 of pyrolysis gasification furnace 1, dry with 100Kg
Bavin igniting, under the conditions of negative oxygen, 1500 DEG C pyroreaction 60 minutes, burning mixture and waste residue are generated, by repeatedly
The waste residue is drained out reaction system by pressure pin blanking device (14,15), and reaction system but reaction is gradually discharged in the waste residue
The height of remaining waste residue should maintain 90cm or more always in system, by described in waste residue discharge of the agitating screw 16 by discharge
Pyrolysis gasification furnace 1；
(2) gas purification: the burning mixture, which enters in gas purifier, to be purified；
(3) it stores: the purified burning mixture is stored in gas holder；
(4) it generates electricity: the burning mixture being stored in gas holder being delivered in steam turbine generator and is transmitted electricity.By above-mentioned work
Skill processing, the volume of the waste residue of generation be the 10% of the preceding medical waste total volume of reaction, and the volume reduction rate of medical waste is up to 90%.It is useless
The tiny no objectionable impurities of the particle of slag can directly be processed into the dedicated sewer pipe of municipal administration, fill without secondary recovery.
2 medical waste pyrolytic gasification treatment process of embodiment the following steps are included:
(1) pyrolytic gasification: the medical waste on the same day is placed on the horizontal shelf 12 of pyrolysis gasification furnace 1, dry with 100Kg
Bavin igniting, under the conditions of negative oxygen, 1400 DEG C at a temperature of react 70 minutes in 1 high temperature of pyrolysis gasification furnace, generate flammable mixed
Gas and waste residue are closed, the waste residue is gradually discharged by reaction system, but reaction system by pressure pin blanking device (14,15) repeatedly
In the height of remaining waste residue should maintain 80cm or more always, the waste residue of discharge is discharged by the pyrolysis by agitating screw 16
Gasification furnace 1；
(2) gas purification: the burning mixture, which enters in gas purifier, to be purified；
(3) it stores: the purified burning mixture is stored in gas holder；
(4) it generates electricity: the burning mixture being stored in gas holder being delivered in steam turbine generator and is transmitted electricity.By above-mentioned work
Skill processing, the volume of the waste residue of generation are 12% of medical waste total volume before reacting, and the volume reduction rate of medical waste is given up up to 88%
The tiny no objectionable impurities of the particle of slag can directly be processed into the dedicated sewer pipe of municipal administration, fill without secondary recovery.
Comparative example 1
(1) pyrolytic gasification: the rubbish on the same day is placed on the horizontal shelf 12 of pyrolysis gasification furnace 1, with 100Kg dried firewood point
Fire, in air, 900 DEG C pyroreaction 50 minutes, generate burning mixture and waste residue, pass through pressure pin blanking device repeatedly
The waste residue is drained out reaction system by (14,15), and the waste residue is gradually discharged in reaction system but reaction system remaining
The height of waste residue should maintain 50cm always, the waste residue of discharge is discharged by the pyrolysis gasification furnace 1 by agitating screw 16, it is high
Diesel oil is added in warm reaction process constantly with maintaining reaction temperature；
(2) gas purification: the burning mixture, which enters in gas purifier, to be purified；
(3) it stores: the purified burning mixture is stored in gas holder；
(4) it generates electricity: the burning mixture being stored in gas holder being delivered in steam turbine generator and is transmitted electricity, steam turbine generator
Smoke outlet white flue gas can be discharged.
Effect example
By Fujian Inst. of Matter Structure, Chinese Academy of Sciences using gas chromatographicanalyzer to gas holder mouth and pyrolysis gasification furnace
The gas componant of mouth is detected, test result such as table 1:
Table 1
| Ingredient | Gas holder mouth (wt%) | Pyrolytic gasification fire door (wt%) |
| Oxygen | 12.15 | 11.11 |
| Nitrogen | 74.04 | 55.90 |
| Hydrogen sulfide | 0 | 0 |
| Carbon dioxide | 0.48 | 1.37 |
| Water | 0 | 2.32 |
| Methane | 1.7 | 3.96 |
| Ethylene | 4.8 | 7.77 |
| C3 alkane and alkene | 1.79 | 5.89 |
| Isobutene | 1.2 | 3.84 |
| C4 alkane and alkene | 0.88 | 2.50 |
| Pentane | 0.69 | 1.35 |
| Hexane | 2.27 | 3.99 |
Seen from table 1, there is no the hydrogen sulfide of welding in mixed combustible gas body, realize the harmless for the treatment of of!medical waste
Change.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind for the treatment of of!medical waste method includes the following steps: (1) pyrolytic gasification: under the conditions of negative oxygen, by medical waste point
After combustion 1400-1600 DEG C at a temperature of react 60 minutes or more in pyrolysis gasification furnace high temperature, generate burning mixture with
And waste residue, the height that the waste residue is drained out remaining waste residue in reaction system but reaction system should maintain 80cm always
More than；(2) gas purification: the burning mixture, which enters in gas purifier, to be purified.
2. treatment of!medical waste method as described in claim 1, it is characterised in that: in step (1), the height of the waste residue
Maintain 90cm or more.
3. treatment of!medical waste method as described in claim 1, it is characterised in that: in step (1), the pyroreaction
Temperature is 1500-1600 DEG C.
4. treatment of!medical waste method as described in claim 1, it is characterised in that: pass through one or more pressure pin blankings repeatedly
Reaction system is discharged in the waste residue by device.
5. treatment of!medical waste method as described in claim 1, it is characterised in that: the waste residue is located at a horizontal shelf
On, there are multiple blanking holes on the horizontal shelf, the blanking device of pressure pin repeatedly is arranged in the blanking hole and in institute
The vertical movement done in a controlled manner in blanking hole repeatedly is stated, is fallen from blanking hole to control the waste residue and maintains institute
State the height of waste residue.
6. treatment of!medical waste method as described in claim 1, it is characterised in that: in step (1), the medical waste packet
Include medical waste that is unfermentable and/or fermenting.
7. treatment of!medical waste method as described in claim 1, it is characterised in that: in step (1), lighted using dried firewood, institute
The process for stating pyroreaction does not add combustion adjuvant.
8. treatment of!medical waste method as claimed in claim 1 or 5, it is characterised in that: in step (1), pass through a stirring spiral shell
The waste residue that reaction system is discharged is discharged bar from the pyrolysis gasification furnace.
9. treatment of!medical waste method as described in claim 1, it is characterised in that: further include step (3) storage after step (2)
It deposits: the purified burning mixture is stored in gas holder.
10. treatment of!medical waste method as claimed in claim 9, it is characterised in that: the treatment of!medical waste method is also
It generates electricity including step (4): the burning mixture of storage is used to generate electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445324.0A CN109609146A (en) | 2018-11-29 | 2018-11-29 | Treatment of!medical waste method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445324.0A CN109609146A (en) | 2018-11-29 | 2018-11-29 | Treatment of!medical waste method |
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| CN109609146A true CN109609146A (en) | 2019-04-12 |
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| CN201811445324.0A Pending CN109609146A (en) | 2018-11-29 | 2018-11-29 | Treatment of!medical waste method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667315A (en) * | 2004-03-09 | 2005-09-14 | 江苏正昌集团有限公司 | Process for burning medical refuse |
| CN102454997A (en) * | 2010-10-18 | 2012-05-16 | 天津市津南振兴实业有限公司 | High-thermal-cracking-rate burning processing and secondary pollutant eliminating method of medical wastes |
| CN202244828U (en) * | 2011-08-30 | 2012-05-30 | 湖南创元新材料有限公司 | Stock bin with arc-breaking device |
| CN208086496U (en) * | 2018-01-17 | 2018-11-13 | 成都红旗油脂有限公司 | A kind of storage bin |
-
2018
- 2018-11-29 CN CN201811445324.0A patent/CN109609146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667315A (en) * | 2004-03-09 | 2005-09-14 | 江苏正昌集团有限公司 | Process for burning medical refuse |
| CN102454997A (en) * | 2010-10-18 | 2012-05-16 | 天津市津南振兴实业有限公司 | High-thermal-cracking-rate burning processing and secondary pollutant eliminating method of medical wastes |
| CN202244828U (en) * | 2011-08-30 | 2012-05-30 | 湖南创元新材料有限公司 | Stock bin with arc-breaking device |
| CN208086496U (en) * | 2018-01-17 | 2018-11-13 | 成都红旗油脂有限公司 | A kind of storage bin |
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