CN111442286A - Plasma skid-mounted treatment device and process for treating medical waste - Google Patents
Plasma skid-mounted treatment device and process for treating medical waste Download PDFInfo
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- CN111442286A CN111442286A CN202010340689.8A CN202010340689A CN111442286A CN 111442286 A CN111442286 A CN 111442286A CN 202010340689 A CN202010340689 A CN 202010340689A CN 111442286 A CN111442286 A CN 111442286A
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- flue gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/10—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/14—Draining devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/20—Supplementary heating arrangements using electric energy
- F23G2204/201—Plasma
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a plasma skid-mounted treatment device and a plasma skid-mounted treatment process for treating medical wastes, wherein the plasma skid-mounted treatment device comprises a first skid-mounted box and a second skid-mounted box; the first skid-mounted box comprises a feeding unit, a gasification incineration unit and a flue gas treatment unit which are sequentially connected; the second skid-mounted case comprises a feeding unit, a compressed air manufacturing unit, a compressed oxygen manufacturing unit, a cooling water manufacturing unit, a power distribution unit and a control unit; the feeding unit is connected with the feeding unit, and the compressed oxygen manufacturing unit and the cooling water manufacturing unit are respectively connected with the gasification incineration unit. The skid-mounted power generating set is provided with the first skid-mounted box and the second skid-mounted box, so that the skid-mounted power generating set is convenient and flexible to move, meets the requirements of complex sites and field arrangement, is short in processing and manufacturing period, is mostly provided with a ferrule type flange for equipment connection, is convenient to assemble, can be matched with a 250KW diesel generating set, only needs water supply on site, is reserved on the skid-mounted box with a water gas port, an electric instrument port and the like, has the maximum treatment capacity of 2.5 tons/day, can realize continuous feeding and continuous slag discharging, is simple and reliable in process.
Description
Technical Field
The invention relates to the technical field of chemical environment-friendly equipment, in particular to a plasma skid-mounted treatment device and process for treating medical wastes.
Background
Related studies show that the cross infection caused by medical waste accounts for more than 20% of the total cross infection rate. Medical wastes are extremely easy to become the infection source of epidemic diseases, medical waste pollution accidents are easily caused if the management is not strict or the treatment is not proper, and great damage is caused to the personal safety of surrounding residents and the development of local economy. How to safely, reasonably and timely dispose medical wastes is a serious test for the disposal capability of various medical waste devices. At present, the mode of treating the medical waste on site is extremely simple and crude, and mainly comprises cooking and direct gasification incineration. The field treatment device has a severe operation environment and extremely high risk, if the process treatment is not thorough, secondary hazardous waste pollution is easy to generate, the field treatment device almost has no tail gas treatment facility, dioxin and escaping viruses are easy to cause secondary damage, and even if the field treatment device still cannot meet the requirement of treatment capacity.
Disclosure of Invention
The invention aims to provide a medical waste disposal device which can be quickly, intensively, easily moved and easily installed, and thoroughly solves the problems that a large amount of new coronary pneumonia medical wastes accumulated in various places at present are accumulated in a large amount and cannot be effectively treated.
In order to achieve the above object, the present invention provides a plasma skid-mounted processing apparatus for processing medical waste, comprising a first skid-mounted case and a second skid-mounted case;
the first skid-mounted box comprises a feeding unit, a gasification incineration unit and a flue gas treatment unit which are sequentially connected;
the second skid-mounted box comprises a material feeding unit, a compressed air manufacturing unit, a compressed oxygen manufacturing unit, a cooling water manufacturing unit, a power distribution unit and a control unit;
the feeding unit is connected with the feeding unit, and the compressed oxygen manufacturing unit and the cooling water manufacturing unit are respectively connected with the gasification incineration unit.
Further, the gasification incineration unit comprises a plasma gasification furnace and a secondary combustion chamber which are connected in sequence.
Further, the flue gas treatment unit comprises a spray tower, an air quenching tower, a bag-type dust collector, a fan and a chimney which are connected in sequence.
Further, the compressed air manufacturing unit includes an air compressor and an air tank.
Further, the compressed oxygen manufacturing unit comprises an oxygen generating main machine and an oxygen tank.
Further, the cooling water manufacturing unit includes a refrigerating unit.
The invention provides a plasma skid-mounted treatment process for treating medical wastes, which comprises the following steps:
(1) conveying the medical waste subjected to packaging and sealing treatment to a feeding unit in the first prying box through a feeding unit in the second prying box, and feeding the medical waste into a plasma gasification furnace;
(2) the medical waste is gasified and cracked in the plasma gasification furnace to generate synthesis gas, and the synthesis gas enters a secondary combustion chamber to be combusted to generate high-temperature flue gas;
(3) the high-temperature flue gas enters a spray tower for deacidification and cooling treatment;
(4) the flue gas treated in the step (3) enters an air quencher for further cooling treatment;
(5) enabling the flue gas treated in the step (4) to enter a bag-type dust remover for dust removal treatment, and arranging an activated carbon slaked lime injection system in front of the bag-type dust remover to remove dust and solid salt carried in the flue gas;
(6) and (5) pumping the flue gas treated in the step (5) out by a fan, and discharging the flue gas into the atmosphere through a chimney.
Further, in the step (1), the package sealing treatment specifically includes: and packaging the medical waste into a plastic bag with a preset specification in a sealing manner.
Further, in the step (2), the temperature of the bottom of the plasma gasification furnace reaches above 1350 ℃, the temperature of the top gasification area is controlled to be 850-.
Further, in the step (3), the outlet temperature of the spray tower is 500-550 ℃, so that no wastewater is generated, and if necessary, 10% ammonia water is sprayed for denitration.
Furthermore, in the step (4), the flue gas is rapidly cooled within 1 second, so that the flow speed of the flue gas is increased, the dioxin is prevented from being generated reversely, and meanwhile, the generated hot air is conveyed to the secondary combustion chamber, so that the combustion efficiency is improved.
Further, in the step (5), the outlet dust content of the bag-type dust collector is less than or equal to 30mg/Nm3。
Further, in the step (6), the induced draft fan is controlled in a frequency conversion mode and is interlocked with the pressure of the plasma gasification furnace, and micro-negative pressure operation of the system is guaranteed.
Compared with the prior art, the invention has the following beneficial effects:
(1) the skid-mounted power generating set is provided with the first skid-mounted box and the second skid-mounted box, so that the skid-mounted power generating set is convenient and flexible to move, meets the requirements of complex sites and field arrangement, is short in processing and manufacturing period, is mostly provided with a ferrule type flange for equipment connection, is convenient to assemble, can be matched with a 250KW diesel generating set, only needs water supply on site, is provided with a water gas port, an electric instrument port and a material inlet on the skid-mounted box, can achieve the maximum treatment capacity of 2.5 tons/day, can realize continuous feeding and continuous slag discharging, is simple and reliable in process.
(2) The invention is provided with tail gas treatment devices for cooling, dedusting, deacidifying, denitrating and the like, the smoke is discharged up to the standard, the whole device system is operated under micro negative pressure, no toxic gas is leaked, and the operation is environment-friendly and controllable.
(3) The external feeding mechanism is adopted, and after the first prying box and the second prying box are in place, the connection can be completed by aligning the feeding unit and the feeding unit.
Drawings
FIG. 1 is a schematic view of the construction of a first prying box of the invention;
fig. 2 is a schematic structural view of a second prying case of the present invention.
In the figure, the device comprises a feeding unit 1, a plasma gasification furnace 2, a secondary combustion chamber 3, a spraying tower 4, an air quenching tower 5, an active carbon slaked lime injection system 6, a cloth bag dust remover 7, a draught fan 8, a chimney 9, a high-level water tank 10, a P L C display screen 11, an electric instrument outlet 12, an oxygen generation main machine 13, an absorption dryer 14, an air compressor 15, an oxygen tank 16, an air tank 17, an air tank 18, a refrigerating unit 19, a telescopic belt conveyor 20, a power distribution cabinet 21, a control cabinet 22, a water vapor port 23 and an electric instrument inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Fig. 1 and fig. 2 show the plasma sled dress formula processing apparatus's of handling medical waste of this embodiment structural schematic diagram, including first sled vanning and second sled vanning, first sled vanning includes that the feeding unit 1 that connects gradually, the plasma gasification stove 2 and the second combustion chamber 3 of gasification incineration unit, the spray tower 4 of flue gas processing unit, air quench tower 5, active carbon slaked lime jetting system 6, sack cleaner 7, draught fan 8 and chimney 9, second sled vanning includes that the flexible belt feeder 19 of feeding unit, the air compressor machine 15 and the air tank 17 of compressed air manufacturing unit, the system oxygen host computer 13 and the oxygen tank 16 of compressed oxygen manufacturing unit, the freezing unit 18 of cooling water manufacturing unit, the switch board 20 of distribution unit and the switch board 21 of control unit.
In this embodiment, the wire and cable between the first and second skid-mounted cases and the instrument air line are connected to the electrical instrument inlet 23 through the electrical instrument outlet 12.
In this embodiment, the second skid-mounted box further includes a drying machine 14, oxygen generated by the oxygen generator 13 is dried by the drying machine 14 and then enters the oxygen tank 16 to provide oxygen for the plasma torch in the plasma gasification furnace 2, and water vapor generated by the drying machine 14 is discharged through the water vapor port 22.
In this embodiment, the compressed air generated by the air compressor 15 enters the air tank 16, and the air tank 16 enters the first prying box through the instrument air pipeline to provide the compressed air for the first prying box.
In the present embodiment, the freezer unit 18 supplies chilled water to the plasma torch in the plasma gasification furnace 2.
In this embodiment, switch board 20 and switch board 21 provide power and control system for whole equipment, get into first sled vanning through wire and cable, for its power that provides, carry out display control through P L C display screen 11, when the on-the-spot power supply condition that does not possess, can form a complete set 250KW diesel generating set.
The plasma skid-mounted treatment process for treating medical waste comprises the following steps:
(1) conveying the medical waste subjected to packaging and sealing treatment to a feeding unit 1 in a first prying box through a feeding unit in a second prying box, and feeding the medical waste into a plasma gasification furnace 2; wherein the package sealing treatment specifically comprises: and packaging the medical waste into a plastic bag with a preset specification in a sealing manner.
(2) The medical waste is gasified and cracked in the plasma gasification furnace 2 to generate 850-plus 900 ℃ synthetic gas, and the synthetic gas enters the secondary combustion chamber 3 to be combusted to generate 1150-plus 1200 ℃ high-temperature flue gas.
(3) The high-temperature flue gas enters the spraying tower 4 to be deacidified and cooled, the temperature of the flue gas is reduced to 500-550 ℃, no wastewater is generated, 10% ammonia water is sprayed for denitration if necessary, and the top of the spraying tower 4 is provided with a high-level water tank 10 for providing water source for the spraying tower.
(4) And (4) the flue gas treated in the step (3) enters an air quencher 5 for further temperature reduction treatment, and the temperature of the flue gas is reduced to 180-200 ℃. The flue gas is accomplished in 1 second of cooling down in air quench tower 5 for the flue gas velocity of flow is fast, avoids the reverse generation of dioxin, and simultaneously, the hot-air that produces is carried to second combustion chamber 3, increases combustion efficiency.
(5) The flue gas treated in the step (4) enters a bag-type dust remover 7 for dust removal treatment, an activated carbon slaked lime injection system 6 is arranged in front of the bag-type dust remover 7 to remove dust and solid salt carried in the flue gas, and the dust content at the outlet of the bag-type dust remover 7 is less than or equal to 30mg/Nm3。
(6) And (4) pumping the flue gas treated in the step (5) out by a fan 8, and discharging the flue gas into the atmosphere through a chimney 9. Wherein, 8 frequency conversion control of fan, with 2 pressure interlocks of plasma gasification stove, ensure the operation of system little negative pressure.
In this embodiment, the plasma gasification furnace 2, the secondary combustion chamber 3 and the spray tower 4 are made of refractory materials and water cooling jackets, so that the service life of the equipment is prolonged while the occupied land is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A plasma skid-mounted treatment device for treating medical wastes is characterized by comprising a first skid-mounted box and a second skid-mounted box;
the first skid-mounted box comprises a feeding unit, a gasification incineration unit and a flue gas treatment unit which are sequentially connected;
the second skid-mounted box comprises a material feeding unit, a compressed air manufacturing unit, a compressed oxygen manufacturing unit, a cooling water manufacturing unit, a power distribution unit and a control unit;
the feeding unit is connected with the feeding unit, and the compressed oxygen manufacturing unit and the cooling water manufacturing unit are respectively connected with the gasification incineration unit.
2. The processing apparatus according to claim 1, wherein the gasification incineration unit comprises a plasma gasification furnace and a secondary combustion chamber connected in series.
3. The processing device according to claim 1, wherein the flue gas processing unit comprises a spray tower, an air quenching tower, a bag-type dust remover, a fan and a chimney which are connected in sequence.
4. The processing apparatus according to claim 1, wherein the compressed air manufacturing unit comprises an air compressor and an air tank.
5. The process plant of claim 1, wherein the compressed oxygen production unit comprises an oxygen generation host and an oxygen tank.
6. The processing apparatus according to claim 1, wherein the cooling water manufacturing unit comprises a freezer unit.
7. A plasma skid-mounted treatment process for treating medical wastes is characterized by comprising the following steps:
(1) conveying the medical waste subjected to packaging and sealing treatment to a feeding unit in the first prying box through a feeding unit in the second prying box, and feeding the medical waste into a plasma gasification furnace;
(2) the medical waste is gasified and cracked in the plasma gasification furnace to generate synthesis gas, and the synthesis gas enters a secondary combustion chamber to be combusted to generate high-temperature flue gas;
(3) the high-temperature flue gas enters a spray tower for deacidification and cooling treatment;
(4) the flue gas treated in the step (3) enters an air quencher for further cooling treatment;
(5) enabling the flue gas treated in the step (4) to enter a bag-type dust remover for dust removal treatment, and arranging an activated carbon slaked lime injection system in front of the bag-type dust remover to remove dust and solid salt carried in the flue gas;
(6) and (5) pumping the flue gas treated in the step (5) out by a fan, and discharging the flue gas into the atmosphere through a chimney.
8. The device according to claim 7, wherein in step (1), the package sealing process is specifically: and packaging the medical waste into a plastic bag with a preset specification in a sealing manner.
9. The apparatus as claimed in claim 7, wherein in step (3), the outlet temperature of the spray tower is 500-550 ℃.
10. The device according to claim 7, wherein in the step (5), the outlet dust content of the bag-type dust remover is less than or equal to 30mg/Nm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010340689.8A CN111442286A (en) | 2020-04-26 | 2020-04-26 | Plasma skid-mounted treatment device and process for treating medical waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010340689.8A CN111442286A (en) | 2020-04-26 | 2020-04-26 | Plasma skid-mounted treatment device and process for treating medical waste |
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| CN111442286A true CN111442286A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010340689.8A Pending CN111442286A (en) | 2020-04-26 | 2020-04-26 | Plasma skid-mounted treatment device and process for treating medical waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797412A (en) * | 2021-01-15 | 2021-05-14 | 清华大学 | Medical waste treatment method |
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2020
- 2020-04-26 CN CN202010340689.8A patent/CN111442286A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797412A (en) * | 2021-01-15 | 2021-05-14 | 清华大学 | Medical waste treatment method |
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