CN111774410A - Medical waste low temperature carbonization treatment system - Google Patents
Medical waste low temperature carbonization treatment system Download PDFInfo
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- CN111774410A CN111774410A CN202010733472.3A CN202010733472A CN111774410A CN 111774410 A CN111774410 A CN 111774410A CN 202010733472 A CN202010733472 A CN 202010733472A CN 111774410 A CN111774410 A CN 111774410A
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- 239000002906 medical waste Substances 0.000 title claims abstract description 27
- 238000003763 carbonization Methods 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims abstract description 72
- 238000000197 pyrolysis Methods 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 238000005336 cracking Methods 0.000 claims abstract description 8
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010285 flame spraying Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 27
- 239000000779 smoke Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 238000002309 gasification Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 150000002736 metal compounds Chemical class 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000008234 soft water Substances 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims 1
- 238000000889 atomisation Methods 0.000 claims 1
- 238000006386 neutralization reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 230000002458 infectious effect Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002956 ash Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 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
- B09B3/0075—Disposal of medical waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a low-temperature carbonization treatment system for medical waste, which belongs to the technical field of treatment of non-infectious and damaged waste in medical waste and comprises a pyrolysis furnace, a flame-spraying furnace, a secondary combustion chamber, a heat exchanger, a semi-dry absorption device, a dry reaction tower, a bag-type dust remover, a spray washing tower and an induced draft fan. The invention has ingenious design, the low-temperature carbonization furnace cracks the organic matters in the garbage into combustible gas in an anaerobic state, so that the discharge amount of solid particles is reduced to the minimum, the continuous operation can be carried out for 24 hours, the waste does not need to be sorted, the operation efficiency is improved, the safety of the working environment is ensured, as the cracking process is in the anaerobic state, the condition of generating dioxin is lost, the generation of harmful substances such as dioxin is reduced, the high-temperature oxidation process is finished in a high-temperature combustion chamber, the secondary harmful gas pollution is not generated, as the incineration process is complete, the residual ash is completely pollution-free substances, and the removal rate of the organic matters reaches 99.99 percent, the subsequent treatment cost is greatly reduced.
Description
Technical Field
The invention relates to a low-temperature carbonization treatment system, relates to the technical field of treatment of non-infectious and traumatic wastes in medical wastes, and particularly relates to a low-temperature carbonization treatment system for medical wastes.
Background
Medical waste refers to waste products generated by medical and health institutions in medical, preventive, health care and other related activities with direct or indirect infectivity, toxicity and other harmfulness. Because the medical waste has special properties, a special treatment mode is needed to eliminate the harmfulness and the danger, and the following problems exist in the prior art:
1. the non-incineration process of medical waste can only treat infectious and damaging waste and cannot treat pathological, chemical and medicinal medical waste;
2. the waste gases and residues from incineration processes have a particularly great environmental impact. Technical innovations are therefore needed to address specific problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a medical waste low-temperature carbonization treatment system, wherein one purpose is to adopt full-closed, field neatness and beauty, no harm to operators, full-automatic control process, simple and convenient operation, soft sealing is adopted for all feeding doors, slag discharging doors and access doors, and furnace body is strictly sealed, so as to realize the effect of oxygen-insulated cracking; the other purpose is to realize 24-hour continuous operation, which is beneficial to waste sorting, improve the operation efficiency and ensure the safety of the working environment.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a medical waste low temperature carbonization processing system, includes pyrolysis oven, spouts furnace, second combustion chamber, heat exchanger, semi-dry absorbing device, dry-type reaction tower, sack cleaner, sprays scrubbing tower and draught fan, and the concrete usefulness of each constitution is:
the pyrolysis furnace is used for cracking organic matters in the garbage into combustible gas in an anaerobic state.
The external of the flame-spraying furnace is provided with a burner, and the oil tank of the burner is connected with a diesel oil storage tank.
The secondary combustion chamber is externally provided with a secondary fan, and the secondary fan is used for tangentially and uniformly feeding air, so that smoke can generate strong turbulence in the secondary combustion chamber, and has enough retention time, thereby realizing 3T combustion in the true sense and effectively removing dioxin.
Soft water is input into the heat exchanger, and steam is discharged from the side face of the heat exchanger. The flue gas generated by high-temperature combustion in the second combustion chamber enters the heat exchanger to exchange heat between gas and water, so that the temperature of the high-temperature flue gas is reduced, and hot water is generated.
The semi-dry type absorption device is used for introducing the flue gas with the temperature reduced so as to rapidly reduce the temperature of the flue gas again.
The dry-type reaction tower is used for treating harmful substances in the flue gas from the tail gas input from the semi-dry-type absorption device.
The bag-type dust collector is used for removing fine dust remained in tail gas and partial free heavy metal compounds in smoke.
And the spraying washing tower is used for washing and purifying the tail gas.
And the induced draft fan is used for guiding the tail gas purified by the spray washing tower to a chimney to be discharged into the atmosphere.
Furthermore, the furnace body ignition combustion machine of the pyrolysis furnace and the flame spraying furnace is ignited, the air supply blower is used for supplying air, the frequency conversion control of the air supply blower is realized, and the waste is dried and heated in the furnace and is pyrolyzed and combusted under the action of combustion air.
Furthermore, the pyrolysis furnace and the jet combustion furnace dry the entered garbage by the smoke rising from the pyrolysis section in the drying section, the moisture in the garbage is volatilized, and the garbage is decomposed into combustible substances such as carbon monoxide and gaseous hydrocarbons in the pyrolysis gasification section to form mixed smoke.
Furthermore, mixed flue gas generated by the pyrolysis furnace and the jet combustion furnace enters a secondary combustion chamber along with a flue for combustion, residues after pyrolysis gasification sink into a combustion section for sufficient combustion, the heat of the residues is used for providing energy required by the pyrolysis section and a drying section, the secondary combustion chamber is provided with an auxiliary burner, a fire observation hole and an access door, the side surface of the secondary combustion chamber is provided with a thermocouple for controlling the work of the burner, and the top of the secondary combustion chamber is additionally provided with an explosion door and an emergency air door for ensuring the safety of personnel and equipment when accidents happen.
Furthermore, the pyrolysis incinerator and the jet-combustion furnace crack the solid garbage under the anoxic state, and the generated gas contains the mixed gas of high-calorific-value gases such as CO, H2, CH4 and the like, and the mixed gas is fully combusted in the secondary combustion chamber. The smoke generated by material pyrolysis and incineration enters the secondary combustion chamber, and is continuously combusted in the secondary combustion chamber to over 1100 ℃, and the auxiliary combustor can ensure that the smoke has enough temperature for combustion.
Further, the semi-dry absorption device inputs sodium hydroxide alkali solution which is stored in an alkali solution tank and is configured into about 3 percent, and a control system operates a feed pump to atomize the solution into fog drops through a two-fluid nozzle at the top of the reaction tower according to requirements and then sprays the fog drops into the tower.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a low-temperature carbonization treatment system for medical waste, which has a delicate design, and a low-temperature carbonization furnace is used for cracking organic matters in garbage into combustible gas in an anaerobic state, so that the discharge amount of solid particles is reduced to the minimum.
2. The invention provides a low-temperature carbonization treatment system for medical waste, which is totally closed, neat and beautiful in site and harmless to operators; the full-automatic control process is simple and convenient to operate, all the feeding doors, the slag discharging doors and the access doors are in soft sealing, and the furnace body is strictly sealed, so that the effect of oxygen-insulated cracking is realized.
3. The invention provides a medical waste low-temperature carbonization treatment system, which can continuously operate for 24 hours without sorting waste, improves the operation efficiency and ensures the safety of the working environment.
4. The invention provides a medical waste low-temperature carbonization treatment system, which is characterized in that the cracking process is in an anaerobic state, so that the condition of generating dioxin is lost, and the generation of harmful substances such as the dioxin is reduced.
5. The invention provides a low-temperature carbonization treatment system for medical waste, which can finish a high-temperature oxidation process in a high-temperature combustion chamber (combustion furnace) without generating secondary harmful gas pollution.
6. The invention provides a low-temperature carbonization treatment system for medical waste, which has the advantages that the incineration process is complete, the residual ash is completely free of pollutants, and the removal rate of organic matters reaches 99.99%, so that the subsequent treatment cost is greatly reduced.
Drawings
FIG. 1 is a flow diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1, the invention provides a low-temperature carbonization treatment system for medical waste, which comprises a pyrolysis furnace, a jet combustion furnace, a secondary combustion chamber, a heat exchanger, a semi-dry absorption device, a dry reaction tower, a bag-type dust remover, a spray washing tower and an induced draft fan; in the embodiment, the pyrolysis furnace is used for cracking organic matters in garbage into combustible gas in an anaerobic state, a burner is arranged outside the flame-spraying furnace, a diesel storage tank is connected to an oil tank of the burner, the furnace body of the pyrolysis furnace and the flame-spraying furnace is ignited by the burner, an air feeder supplies air, the air feeder is controlled in a variable frequency mode, and waste is dried and heated in the furnace and pyrolyzed and combusted under the action of combustion air; preferably, the pyrolysis furnace and the jet combustion furnace dry the entered garbage in the drying section by the smoke rising from the pyrolysis section, the moisture in the smoke is volatilized, the garbage is decomposed into combustible substances such as carbon monoxide, gaseous hydrocarbons and the like in the pyrolysis gasification section and forms mixed smoke, preferably, the mixed smoke generated by the pyrolysis furnace and the jet combustion furnace enters a secondary combustion chamber along with a flue for combustion, the residue after pyrolysis gasification sinks into the combustion section for full combustion, and the heat of the residue is used for providing energy required by the pyrolysis section and the drying section; the secondary combustion chamber is provided with an auxiliary burner, a fire hole and an access door, the side surface is provided with a thermocouple to control the work of the burner, and the top part is additionally provided with an explosion door and an emergency air door so as to ensure the safety of personnel and equipment when an accident happens.
In this embodiment, the secondary combustion chamber is provided with a secondary air fan outside, and the secondary air fan is used for tangential uniform air intake, so that the flue gas can generate strong turbulence in the secondary combustion chamber, and has sufficient residence time (the theoretical design time is more than 2s), so as to really realize 3T combustion and effectively remove dioxin, wherein the pyrolysis incinerator and the jet combustion furnace crack solid garbage under an anoxic state, and the generated gas contains mixed gas of high-calorific-value gas such as CO, H2, CH4 and the like, and is fully combusted in the secondary combustion chamber. The smoke generated by material pyrolysis and incineration enters the secondary combustion chamber, and is continuously combusted in the secondary combustion chamber to over 1100 ℃, and the auxiliary combustor can ensure that the smoke has enough temperature for combustion.
In this embodiment, soft water is input to the inside of the heat exchanger, and steam is discharged from the side of the heat exchanger. The flue gas generated by high-temperature combustion in the secondary combustion chamber enters a heat exchanger to perform heat exchange between gas and water, the temperature of the high-temperature flue gas is reduced to generate hot water, the semi-dry type absorption device is used for introducing the flue gas with the reduced temperature to rapidly reduce the temperature of the flue gas again, the dry type reaction tower is used for treating harmful substances in the flue gas from the tail gas input from the semi-dry type absorption device, lime powder and active carbon powder can be added in the dry type reaction tower during working, the dry type reaction tower is connected with a Roots blower to convey the flue gas into the tower, a cloth bag dust remover removes fine dust remained in the tail gas and partial free heavy metal compounds in the flue gas, the spray washing tower washes and purifies the tail gas, the tail gas purified by the spray washing tower is introduced into a chimney through an induced draft fan and is discharged into the atmosphere, the semi-dry type absorption device is, the control system operates a feeding pump to atomize the solution into fog drops through a two-fluid nozzle at the top of the reaction tower according to requirements and then the fog drops are sprayed into the tower, wherein fly ash generated in the semi-dry type absorption device and fly ash discharged by the bag-type dust remover through an inclined plate discharger enter a fly ash solidification treatment system for solidification treatment.
The working principle of the low-temperature carbonization treatment system for medical waste is described in detail below.
The low-temperature carbonization furnace adopts a double-layer structure, the outer part is a shell, and the inner part is a rotary hearth. The induced draft fan is arranged at the last section of the equipment, all the systems are connected through pipelines, and the induced draft fan induces air at the rear end to enable the flue gas to pass through all the systems from front to back; the inner chamber is heated and cracked by a burner (the heating temperature is between 500 ℃ and 650 ℃), the garbage is cracked in the heating process to generate combustible gas, and the combustible gas is introduced into a secondary combustion chamber for high-temperature combustion; the advanced air guide system is arranged in the secondary combustion chamber, the oxygen supplement is uniform, and the secondary combustion chamber has enough volume, so that the combustible gas is combusted in a vortex mode in the secondary combustion chamber, the retention time of flue gas is prolonged, the central temperature of the combustion furnace is more than 1100 ℃, and the retention time is more than 2 seconds; the fan blows air into the lime bin and the activated carbon bin, then the activated carbon and the slaked lime are sprayed into the pipeline to react with acid components in the flue gas, and acid gas is removed during combustion.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (7)
1. A medical waste low temperature carbonization processing system which characterized in that: the device comprises a pyrolysis furnace, a flame spraying furnace, a secondary combustion chamber, a heat exchanger, a semi-dry absorption device, a dry reaction tower, a bag-type dust remover, a spray washing tower and a draught fan, wherein the specific uses of the components are as follows:
the pyrolysis furnace is used for cracking organic matters in the garbage into combustible gas in an anaerobic state;
a combustor is arranged outside the flame-jetting furnace, and a diesel storage tank is connected to an oil tank of the combustor;
the secondary air blower is arranged outside the secondary combustion chamber and used for tangentially and uniformly feeding air, so that smoke can generate strong turbulence in the secondary combustion chamber, sufficient retention time is provided, 3T combustion is truly realized, and dioxin is effectively removed;
soft water is input into the heat exchanger, and steam is discharged from the side surface of the heat exchanger; the flue gas generated by high-temperature combustion in the secondary combustion chamber enters a heat exchanger for heat exchange between gas and water, so that the temperature of the high-temperature flue gas is reduced, and hot water is generated;
the semi-dry absorption device is used for introducing the flue gas with the temperature reduced so as to rapidly reduce the temperature of the flue gas again;
the dry reaction tower is used for treating harmful substances in the flue gas from the tail gas input from the semi-dry absorption device;
the bag-type dust collector is used for removing fine dust remained in tail gas and partial free heavy metal compounds in the smoke;
the spray washing tower is used for washing and purifying the tail gas;
and the induced draft fan is used for guiding the tail gas purified by the spray washing tower to a chimney to be discharged into the atmosphere.
2. The medical waste low-temperature carbonization treatment system according to claim 1, wherein: the furnace body ignition combustion machine of the pyrolysis furnace and the flame-spraying furnace is ignited, the air feeder is used for supplying air, the frequency conversion control of the air feeder is realized, and waste is dried and heated in the furnace and is pyrolyzed and combusted under the action of combustion air.
3. The medical waste low-temperature carbonization treatment system according to claim 1, wherein: the pyrolysis furnace and the jet combustion furnace are used for drying the entered garbage by the smoke rising from the pyrolysis section in the drying section, the moisture in the garbage is volatilized, and the garbage is decomposed into combustible substances such as carbon monoxide and gaseous hydrocarbons in the pyrolysis gasification section to form mixed smoke.
4. The medical waste low-temperature carbonization treatment system according to claim 2, wherein: the mixed flue gas generated by the pyrolysis furnace and the jet combustion furnace enters the secondary combustion chamber along with the flue for combustion, the residue after pyrolysis and gasification sinks into the combustion section for full combustion, and the heat of the residue is used for providing energy required by the pyrolysis section and the drying section.
5. The medical waste low-temperature carbonization treatment system according to claim 2, wherein: the pyrolysis incinerator and the jet combustion furnace crack the solid garbage under the anoxic state, and the generated gas contains the mixed gas of high-calorific-value gases such as CO, H2, CH4 and the like, and the mixed gas is fully combusted in the secondary combustion chamber. The smoke generated by material pyrolysis and incineration enters the secondary combustion chamber, and is continuously combusted in the secondary combustion chamber to over 1100 ℃, and the auxiliary combustor can ensure that the smoke has enough temperature for combustion.
6. The medical waste low-temperature carbonization treatment system according to claim 1, wherein: the semi-dry absorption device is used for inputting sodium hydroxide alkali solution which is stored in an alkali liquor tank and is configured into about 3 percent, and a control system operates a feed pump to atomize the solution into fog drops through a two-fluid nozzle at the top of the reaction tower according to requirements and then sprays the fog drops into the tower.
7. The medical waste low-temperature carbonization treatment system according to claim 6, wherein: the atomized alkali liquor fog drops are acted by upward hot flue gas to form a high-density area in which the alkali liquor fog drops are suspended near the nozzle, acidic substances in the flue gas generate neutralization reaction when passing through the area, and meanwhile, the temperature of the flue gas can be rapidly reduced to be below 200 ℃. The two-fluid nozzle is arranged in the tower, the flow is large, the atomization effect is good, and the flue gas temperature can be effectively and rapidly reduced.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664946A (en) * | 2021-01-16 | 2021-04-16 | 锐智信息科技(滨州)有限公司 | Medical waste treatment process |
| CN113546946A (en) * | 2021-07-23 | 2021-10-26 | 浙江中蓝环境科技有限公司 | Anaerobic dry distillation treatment method for medical waste |
| CN114516617A (en) * | 2020-11-20 | 2022-05-20 | 武汉恒创能源技术有限公司 | Method and system for preparing hydrogen oil by converting ultrahigh-temperature medical solid waste |
| CN115945506A (en) * | 2023-02-20 | 2023-04-11 | 苏州中材非金属矿工业设计研究院有限公司 | Anaerobic pyrolysis recovery system for waste photovoltaic panels |
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