CN109579022A - A kind of multi-functional straight tube radioactive waste control oxygen incinerator and incinerating method - Google Patents
A kind of multi-functional straight tube radioactive waste control oxygen incinerator and incinerating method Download PDFInfo
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- CN109579022A CN109579022A CN201811310111.7A CN201811310111A CN109579022A CN 109579022 A CN109579022 A CN 109579022A CN 201811310111 A CN201811310111 A CN 201811310111A CN 109579022 A CN109579022 A CN 109579022A
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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
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/102—Intercepting solids by filters electrostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/40—Intercepting solids by cyclones
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of multi-functional straight tube radioactive waste control oxygen incinerator and incinerating method, the device includes a combustion room, dual firing chamber, dreg discharging box, high-temperature flue gas cyclone separator, quenching apparatus, first grade scrubber, secondary scrubber, fluidized bed dryer, electrostatic precipitator, high efficiency particulate air filter, dioxin filter and air-introduced machine etc..Incinerator disclosed in this invention, using open fire-control oxygen burning process, so that the risk that burning process fires is preferably minimized；The reliable igniting of setting ensures automatic control system, guarantees the igniting of combustion-supporting oil and the reliability of warm-up operation process；Setting fires material resource monitoring system, and combustion furnace unloads quick-fried pressure relief system, have a power failure emergency power supply and municipal water supply of cutting off the water, the operational safety of comprehensive guarantee device；Key equipment, the setting of measure and control instrument redundancy, it is safe and reliable with control to guarantee that device is run.
Description
Technical field
The invention belongs to Radioactive waste management fields, the in particular to multi-functional straight tube Spent Radioactive in one of the field
Object control oxygen incinerator and incinerating method.
Background technique
Radioactive waste incineration technology is to handle one of most effective technology of radioactivity combustible waste in the world at present, by
The states such as the U.S., France, Germany, Japan are widely used.The maximum volume reduction of solid waste may be implemented in the technology, can be realized
Waste it is inorganization, stability greatly improves.Both the storage, transport and final disposal expense of radioactive waste can be greatly reduced
With, and the safety of storage, transport and final disposal can be greatly improved.
The burning of China's radioactivity combustible solid wastes by utilizing be using pyrolysis-incineration technology, The 404 Ltd., CNNC,
The radioactive waste based on the technology is had in center Environmental Protection in Sichuan Province Engineering Co., Ltd and China Engineering Physics Research Institute
Incinerator.But without incinerator and incinerating method based on control oxygen.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of multi-functional straight tube radioactive waste control oxygen incinerators
And incinerating method.
The present invention adopts the following technical scheme:
A kind of multi-functional straight tube radioactive waste control oxygen incinerator, thes improvement is that: the device include one combustion room,
Dual firing chamber, dreg discharging box, high-temperature flue gas cyclone separator, quenching apparatus, first grade scrubber, secondary scrubber, fluidized bed dryer,
Electrostatic precipitator, high efficiency particulate air filter, dioxin filter and air-introduced machine；One combustion room on be arranged feed opening, upper air inlet, under into
Air port, oxygen lance, ash discharging hole and exhanst gas outlet；Gas inlet, exhanst gas outlet and ash discharging hole are set in dual firing chamber, in two combustions
The nozzle that indoor setting and dual firing chamber are interlinked to the outside；Gas inlet, exhanst gas outlet and row are set on high-temperature flue gas cyclone separator
Grey mouth；Divide on quenching apparatus, first grade scrubber, secondary scrubber, electrostatic precipitator, high efficiency particulate air filter and dioxin filter
Gas inlet and exhanst gas outlet are not provided with it；The ash discharging hole of above-mentioned combustion room, dual firing chamber and high-temperature flue gas cyclone separator is distinguished
Be connected by pipeline with dreg discharging box, the washing absorption waste water storage tank of first grade scrubber and secondary scrubber pass through respectively pipeline with
Fluidized bed dryer is connected, and the exhanst gas outlet of a combustion room is communicated by pipeline with the gas inlet of dual firing chamber, the cigarette of dual firing chamber
Gas outlet is communicated by pipeline with the gas inlet of high-temperature flue gas cyclone separator, the exhanst gas outlet of high-temperature flue gas cyclone separator
It is communicated by pipeline with the gas inlet of quenching apparatus, the exhanst gas outlet of quenching apparatus passes through the flue gas of pipeline and first grade scrubber
Import communicates, and the exhanst gas outlet of first grade scrubber is communicated by pipeline with the gas inlet of secondary scrubber, secondary scrubber
Exhanst gas outlet is communicated by pipeline with the gas inlet of electrostatic precipitator, and the exhanst gas outlet of electrostatic precipitator is by pipeline and efficiently
The gas inlet of filter communicates, and the exhanst gas outlet of high efficiency particulate air filter passes through the gas inlet phase of pipeline and dioxin filter
Logical, the exhanst gas outlet of dioxin filter is communicated by pipeline with the air inducing end of air-introduced machine, additionally in the air outlet of air-introduced machine
Upper installation exhaust duct.
Further, feed opening and upper air inlet are set to the top of a combustion room, lower air inlet, oxygen lance and exhanst gas outlet
Set on the side of a combustion room, ash discharging hole is set to the bottom of a combustion room, and igniter additionally is arranged on the side wall of a combustion room.
Further, nozzle is set to the side in dual firing chamber, and ash discharging hole is set to the bottom of dual firing chamber.
Further, gas inlet is set to the side of high-temperature flue gas cyclone separator, and exhanst gas outlet is revolved set on high-temperature flue gas
The top of wind separator, ash discharging hole are set to the bottom of high-temperature flue gas cyclone separator.
Further, the quantity of the air-introduced machine is two, and two air-introduced machines are connected in parallel.
Further, the device further includes that igniting ensures automatic control system, fires material resource monitoring system, combustion furnace
Unload quick-fried pressure relief system, have a power failure emergency power supply and municipal water supply of cutting off the water.
Further, a combustion room, dual firing chamber and the connecting pipe between them use MULTILAYER COMPOSITE refractory liner structure.
Further, first grade scrubber, secondary scrubber, electrostatic precipitator, high efficiency particulate air filter, dioxin filter and
Connecting pipe between them is using nonmetallic high-intensitive anticorrosive material.
Further, the shell of high-temperature flue gas cyclone separator, high efficiency particulate air filter and dioxin filter is with heat preservation knot
Structure.
A kind of multi-functional straight tube radioactive waste control oxygen incinerating method, using above-mentioned device, it is improved in that packet
Include following steps:
(1) radioactive solid waste is passed through into the indoor directly open fire burning of one combustion of feed opening investment, ignition temperature 800-1000
DEG C, the indoor holding negative pressure of a combustion, combustion air enter a combustion room by upper air inlet and lower air inlet in combustion, if two
It fires room oxygen content and is lower than certain value, then indoor supplement pure oxygen is fired to one by oxygen lance, vapor is by lower air inlet with combustion-supporting
After air enters a combustion room together, the endothermic reaction occurs with charcoal remaining in clinker, generates CO and H2, burning certain time it is laggard
Row ash discharge operation, lime-ash is discharged into dreg discharging box from ash discharging hole by pipeline, one combustion room generation flue gas be discharged into dual firing chamber do into
One step burning processing；
(2) radioactive liquid waste is sprayed into burning in dual firing chamber by nozzle to handle, 850-1100 DEG C of ignition temperature, flue gas
The minimum residence time in dual firing chamber is greater than 2 seconds, and burning carries out ash discharge operation after a certain period of time, and lime-ash is passed through from ash discharging hole
Pipeline is discharged into dreg discharging box；
(3) high-temperature flue gas come out from dual firing chamber sequentially enters the progress of high-temperature flue gas cyclone separator under the attraction of air-introduced machine
Pre- dedusting, into quenching apparatus by its temperature by 700 DEG C of rapid drawdowns to 80 DEG C or so, into first grade scrubber and with demister
Secondary scrubber carries out depickling processing and does further purified treatment, entrance into high efficiency particulate air filter into electrostatic precipitator dedusting
Dioxin filter filters out dioxin, is most discharged into exhaust duct through air-introduced machine afterwards；
(4) high-temperature flue gas cyclone separator operation carries out ash discharge operation after a certain period of time, and lime-ash is arranged from ash discharging hole by pipeline
Enter in dreg discharging box；The washing absorption waste liquid of first grade scrubber and secondary scrubber is discharged into fluidized bed dryer processing, not to device
Outer discharge, the salt slag that fluidized bed dryer generates after being dried are discharged into dreg discharging box.
The beneficial effects of the present invention are:
Incinerator disclosed in this invention, using open fire-control oxygen burning process, so that the risk drop that burning process fires
To minimum；The reliable igniting of setting ensures automatic control system, guarantees the igniting of combustion-supporting oil and the reliability of warm-up operation process；
Setting fires material resource monitoring system, and combustion furnace unloads quick-fried pressure relief system, have a power failure emergency power supply and municipal water supply of cutting off the water, comprehensive guarantor
The operational safety of card device；Key equipment, the setting of measure and control instrument redundancy, it is safe and reliable with control to guarantee that device is run.
Incinerator disclosed in this invention has the apparatus structure of optimization, reasonable material selection and effectively reliable
Dewing-proof measures, high temperature section equipment (not including high-temperature flue gas cyclone separator) and connecting pipe use MULTILAYER COMPOSITE refractory liner
Structure, flue gas chilling, to 80 DEG C or so of quenching apparatus, are effectively prevented acid medium in flue gas and tied using 700 DEG C of rapid drawdowns
Dew corrosion；100 DEG C or less flue gas equipment and connecting pipe are using nonmetallic high-intensitive anticorrosive material production；It is disliked from a combustion room to two
English filter, device main equipment does not have mechanical moving element (especially high temperature section), so that the service life of device reaches ultimate attainment, therefore
Barrier rate is preferably minimized, and repair and maintenance is simple；High-temperature flue gas cyclone separator, high efficiency particulate air filter and dioxin filter, which use, to be had
The INSULATION DESIGN of effect prevents flue gas surface sweating in the device, the service life of device has been effectively ensured.
Incinerator disclosed in this invention, using special chamber structure, eddy flow air supply mode is enhanced burned
Journey ensure that the smoke combustion residence time is greater than 2 seconds；Two combustion room at least 900~1100 DEG C of hot operations simultaneously guarantee that flue gas stops
The time is stayed, so that fire retardant organic matter is completely broken down destruction；It controls oxygen to burn, when waste source item component changes greatly, passes through note
Oxygen combustion method had both effectively increased incineration of waste efficiency, while can effectively reduce the flue gas variable quantity in operational process, guaranteed dress
Set run smoothly, stable conditions；One combustion room burning process uses steam temperature control technology, both guarantees to burn fully and completely,
It avoids burning ash to become slag again, guarantees the reliability of ash discharge operation.
Incinerator disclosed in this invention, using special chamber structure, eddy flow air supply mode is enhanced burned
Journey ensure that the smoke combustion residence time is greater than 2 seconds；Two combustion room at least 900~1100 DEG C of hot operations simultaneously guarantee that flue gas stops
The time is stayed, so that fire retardant organic matter is completely broken down destruction；It controls oxygen to burn, when waste source item component changes greatly, passes through note
Oxygen combustion method had both effectively increased incineration of waste efficiency, while can effectively reduce the flue gas variable quantity in operational process, guaranteed dress
Set run smoothly, stable conditions；One combustion room burning process uses steam temperature control technology, both guarantees to burn fully and completely,
It avoids burning ash to become slag again, guarantees the reliability of ash discharge operation.
Incinerator disclosed in this invention, incinerator high combustion efficiency, combustion adjuvant consumption is few, and integrated operation expense is low；
Apparatus structure simple fault rate is low, and repair and maintenance is convenient, and service life is long, few easy workout part；Plant automation degree is high, operation letter
Single, operation operations staff is few；Secondary waste yield is few, and reprocessing expense is low.Reception waste is extensive, processing capacity is big, waste
As long as packaging meets the geometric dimension requirement of feed opening, waste is not necessarily to the complicated pre-treatment such as to be sorted, be crushed, handles energy
Power is up to 100kg/h.It is adaptable, can multi-purpose content, can in set of device burning disposal combustible solid wastes by utilizing, waste oil, have
Machine solution (kerosene/TBP), inorganic chemistry solution, spent resin, graphite, animal carcass, sludge and fast reactor old metal sodium etc. receive
The range-of-motion of radioactive waste is wide.Flue gas is successively through high-temperature flue gas cyclone separator, the washing of two-stage scrubbing tower, electrostatic precipitation
Device, two-stage nuclear leve high efficiency particulate air filter, dioxin filter discharge again after being purified, and are much better than emission limit.
Incinerating method disclosed in this invention, vapor quantitatively enter a combustion room with combustion air by lower air inlet, into
The endothermic reaction occurs for remaining charcoal in vapor and clinker after entering a combustion room, generates CO and H2, to reach guarantee high temperature furnace
Slag blanket temperature is stable, the uniform desired effect for avoiding slag melting agglomeration.The volume reduction ratio 20~100 of waste, loss of weight after burning
10~80, carbon yield is down to 3~5% in residue.Washing absorption waste liquid carries out closed-loop process by fluidized bed dryer, not to device
Outer discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of incinerator disclosed in the embodiment of the present invention 1；
Fig. 2 is the flow diagram of incinerating method disclosed in the embodiment of the present invention 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right below in conjunction with drawings and examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1, as shown in Figure 1, present embodiment discloses a kind of multi-functional straight tube radioactive waste control oxygen incinerator,
The device includes a combustion room 1, dual firing chamber 2, dreg discharging box 3, high-temperature flue gas cyclone separator 4, quenching apparatus 5, level-one washing
Tower 6, secondary scrubber 7, fluidized bed dryer 8, electrostatic precipitator 9, high efficiency particulate air filter 10, dioxin filter 11 and air-introduced machine
12；Feed opening, upper air inlet, lower air inlet, oxygen lance, ash discharging hole and exhanst gas outlet are set on a combustion room；In dual firing chamber
The nozzle being interlinked to the outside with dual firing chamber is arranged in upper setting gas inlet, exhanst gas outlet and ash discharging hole in dual firing chamber；In high-temperature flue gas
Gas inlet, exhanst gas outlet and ash discharging hole are set on cyclone separator；In quenching apparatus, first grade scrubber, secondary scrubber, quiet
Gas inlet and exhanst gas outlet are respectively arranged on electric precipitator, high efficiency particulate air filter and dioxin filter；An above-mentioned combustion room, two
The ash discharging hole of combustion room and high-temperature flue gas cyclone separator passes through pipeline respectively and is connected with dreg discharging box, and first grade scrubber and second level are washed
The washing absorption waste water storage tank for washing tower is connected by pipeline with fluidized bed dryer, one combustion room exhanst gas outlet by pipeline with
The gas inlet of dual firing chamber communicates, and the exhanst gas outlet of dual firing chamber passes through the gas inlet phase of pipeline and high-temperature flue gas cyclone separator
Logical, the exhanst gas outlet of high-temperature flue gas cyclone separator is communicated by pipeline with the gas inlet of quenching apparatus, the cigarette of quenching apparatus
Gas outlet is communicated by pipeline with the gas inlet of first grade scrubber, and the exhanst gas outlet of first grade scrubber is washed by pipeline and second level
The gas inlet for washing tower communicates, and the exhanst gas outlet of secondary scrubber is communicated by pipeline with the gas inlet of electrostatic precipitator, quiet
The exhanst gas outlet of electric precipitator is communicated by pipeline with the gas inlet of high efficiency particulate air filter, and the exhanst gas outlet of high efficiency particulate air filter passes through
Pipeline is communicated with the gas inlet of dioxin filter, and the exhanst gas outlet of dioxin filter passes through the air inducing of pipeline and air-introduced machine
End communicates, and additionally installs exhaust duct on the air outlet of air-introduced machine.
In the present embodiment, feed opening and upper air inlet are set to the top of a combustion room, lower air inlet, oxygen lance and flue gas
Outlet is set to the side of a combustion room, and ash discharging hole is set to the bottom of a combustion room, and igniter additionally is arranged on the side wall of a combustion room.
Nozzle is set to the side in dual firing chamber, and ash discharging hole is set to the bottom of dual firing chamber.Gas inlet is set to high-temperature flue gas cyclone separator
Side, exhanst gas outlet be set to high-temperature flue gas cyclone separator top, ash discharging hole be set to high-temperature flue gas cyclone separator bottom
Portion.The quantity of the air-introduced machine is two, and two air-introduced machines are connected in parallel to form major-minor blower.
The device further includes that igniting ensures automatic control system, fires material resource monitoring system, combustion furnace and unload quick-fried pressure release
System, have a power failure emergency power supply and municipal water supply of cutting off the water.One combustion room, dual firing chamber and the connecting pipe between them use multilayer
Composite fire lining structure.First grade scrubber, secondary scrubber, electrostatic precipitator, high efficiency particulate air filter, dioxin filter and
Connecting pipe between them is using nonmetallic high-intensitive anticorrosive material.High-temperature flue gas cyclone separator, high efficiency particulate air filter and two
The shell for disliking English filter has insulation construction.
As shown in Fig. 2, the present embodiment also discloses a kind of multi-functional straight tube radioactive waste control oxygen incinerating method, in use
The device stated, includes the following steps:
(1) radioactive solid waste is passed through into the indoor directly open fire burning of one combustion of feed opening investment, ignition temperature 800-1000
DEG C, the indoor holding negative pressure of a combustion, combustion air enter a combustion room by upper air inlet and lower air inlet in combustion, if two
It fires room oxygen content and is lower than certain value, then indoor supplement pure oxygen is fired to one by oxygen lance, vapor is by lower air inlet with combustion-supporting
After air enters a combustion room together, the endothermic reaction occurs with charcoal remaining in clinker, generates CO and H2, burning certain time it is laggard
Row ash discharge operation, lime-ash is discharged into dreg discharging box from ash discharging hole by pipeline, one combustion room generation flue gas be discharged into dual firing chamber do into
One step burning processing；
(2) radioactive liquid waste is sprayed into burning in dual firing chamber by nozzle to handle, 850-1100 DEG C of ignition temperature, flue gas
The minimum residence time in dual firing chamber is greater than 2 seconds, and burning carries out ash discharge operation after a certain period of time, and lime-ash is passed through from ash discharging hole
Pipeline is discharged into dreg discharging box；
(3) high-temperature flue gas come out from dual firing chamber sequentially enters the progress of high-temperature flue gas cyclone separator under the attraction of air-introduced machine
Pre- dedusting, into quenching apparatus by its temperature by 700 DEG C of rapid drawdowns to 80 DEG C or so, into first grade scrubber and with demister
Secondary scrubber carries out depickling processing and does further purified treatment, entrance into high efficiency particulate air filter into electrostatic precipitator dedusting
Dioxin filter filters out dioxin, is most discharged into exhaust duct through air-introduced machine afterwards；
(4) high-temperature flue gas cyclone separator operation carries out ash discharge operation after a certain period of time, and lime-ash is arranged from ash discharging hole by pipeline
Enter in dreg discharging box；The washing absorption waste liquid of first grade scrubber and secondary scrubber is discharged into fluidized bed dryer processing, not to device
Outer discharge, the salt slag that fluidized bed dryer generates after being dried are discharged into dreg discharging box.
Claims (10)
1. a kind of multi-functional straight tube radioactive waste control oxygen incinerator, it is characterised in that: the device includes combustion a room, two
Fire room, dreg discharging box, high-temperature flue gas cyclone separator, quenching apparatus, first grade scrubber, secondary scrubber, fluidized bed dryer, quiet
Electric precipitator, high efficiency particulate air filter, dioxin filter and air-introduced machine；Feed opening, upper air inlet, lower air inlet are set on a combustion room
Mouth, oxygen lance, ash discharging hole and exhanst gas outlet；Gas inlet, exhanst gas outlet and ash discharging hole are set in dual firing chamber, in dual firing chamber
The nozzle that interior setting is interlinked to the outside with dual firing chamber；Gas inlet, exhanst gas outlet and ash discharge are set on high-temperature flue gas cyclone separator
Mouthful；On quenching apparatus, first grade scrubber, secondary scrubber, electrostatic precipitator, high efficiency particulate air filter and dioxin filter respectively
It is provided with gas inlet and exhanst gas outlet；The ash discharging hole of above-mentioned combustion room, dual firing chamber and high-temperature flue gas cyclone separator leads to respectively
Piping is connected with dreg discharging box, and the washing absorption waste water storage tank of first grade scrubber and secondary scrubber passes through pipeline and stream respectively
Change bed dryer to be connected, the exhanst gas outlet of a combustion room is communicated by pipeline with the gas inlet of dual firing chamber, the flue gas of dual firing chamber
Outlet is communicated by pipeline with the gas inlet of high-temperature flue gas cyclone separator, and the exhanst gas outlet of high-temperature flue gas cyclone separator is logical
Piping is communicated with the gas inlet of quenching apparatus, the exhanst gas outlet of quenching apparatus by pipeline and the flue gas of first grade scrubber into
Mouth communicates, and the exhanst gas outlet of first grade scrubber is communicated by pipeline with the gas inlet of secondary scrubber, the cigarette of secondary scrubber
Gas outlet is communicated by pipeline with the gas inlet of electrostatic precipitator, and the exhanst gas outlet of electrostatic precipitator passes through pipeline and efficient mistake
The gas inlet of filter communicates, and the exhanst gas outlet of high efficiency particulate air filter is communicated by pipeline with the gas inlet of dioxin filter,
The exhanst gas outlet of dioxin filter is communicated by pipeline with the air inducing end of air-introduced machine, is additionally pacified on the air outlet of air-introduced machine
Fill exhaust duct.
2. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: feed opening and
Upper air inlet is set to the top of a combustion room, and lower air inlet, oxygen lance and exhanst gas outlet are set to the side of a combustion room, and ash discharging hole is set
In the bottom of a combustion room, igniter additionally is set on the side wall of a combustion room.
3. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: nozzle is set to
Side in dual firing chamber, ash discharging hole are set to the bottom of dual firing chamber.
4. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: gas inlet
Set on the side of high-temperature flue gas cyclone separator, exhanst gas outlet is set to the top of high-temperature flue gas cyclone separator, and ash discharging hole is set to
The bottom of high-temperature flue gas cyclone separator.
5. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: the air inducing
The quantity of machine is two, and two air-introduced machines are connected in parallel.
6. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: the dress
Set further includes that igniting ensures automatic control system, fires material resource monitoring system, combustion furnace and unload quick-fried pressure relief system, power failure emergency power supply
And municipal water supply of cutting off the water.
7. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: a combustion room,
Dual firing chamber and the connecting pipe between them use MULTILAYER COMPOSITE refractory liner structure.
8. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: level-one washing
Tower, secondary scrubber, electrostatic precipitator, high efficiency particulate air filter, dioxin filter and the connecting pipe between them are using non-
Metal high intensity anticorrosive material.
9. multi-functional straight tube radioactive waste control oxygen incinerator according to claim 1, it is characterised in that: high-temperature flue gas
The shell of cyclone separator, high efficiency particulate air filter and dioxin filter has insulation construction.
10. a kind of multi-functional straight tube radioactive waste control oxygen incinerating method, using device described in claim 1, feature exists
In including the following steps:
(1) radioactive solid waste is passed through into the indoor directly open fire burning of one combustion of feed opening investment, ignition temperature 800-1000
DEG C, the indoor holding negative pressure of a combustion, combustion air enter a combustion room by upper air inlet and lower air inlet in combustion, if two
It fires room oxygen content and is lower than certain value, then indoor supplement pure oxygen is fired to one by oxygen lance, vapor is by lower air inlet with combustion-supporting
After air enters a combustion room together, the endothermic reaction occurs with charcoal remaining in clinker, generates CO and H2, burning certain time it is laggard
Row ash discharge operation, lime-ash is discharged into dreg discharging box from ash discharging hole by pipeline, one combustion room generation flue gas be discharged into dual firing chamber do into
One step burning processing；
(2) radioactive liquid waste is sprayed into burning in dual firing chamber by nozzle to handle, 850-1100 DEG C of ignition temperature, flue gas
The minimum residence time in dual firing chamber is greater than 2 seconds, and burning carries out ash discharge operation after a certain period of time, and lime-ash is passed through from ash discharging hole
Pipeline is discharged into dreg discharging box；
(3) high-temperature flue gas come out from dual firing chamber sequentially enters the progress of high-temperature flue gas cyclone separator under the attraction of air-introduced machine
Pre- dedusting, into quenching apparatus by its temperature by 700 DEG C of rapid drawdowns to 80 DEG C or so, into first grade scrubber and with demister
Secondary scrubber carries out depickling processing and does further purified treatment, entrance into high efficiency particulate air filter into electrostatic precipitator dedusting
Dioxin filter filters out dioxin, is most discharged into exhaust duct through air-introduced machine afterwards；
(4) high-temperature flue gas cyclone separator operation carries out ash discharge operation after a certain period of time, and lime-ash is arranged from ash discharging hole by pipeline
Enter in dreg discharging box；The washing absorption waste liquid of first grade scrubber and secondary scrubber is discharged into fluidized bed dryer processing, not to device
Outer discharge, the salt slag that fluidized bed dryer generates after being dried are discharged into dreg discharging box.
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| CN201811310111.7A CN109579022A (en) | 2018-11-04 | 2018-11-04 | A kind of multi-functional straight tube radioactive waste control oxygen incinerator and incinerating method |
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| CN201811310111.7A CN109579022A (en) | 2018-11-04 | 2018-11-04 | A kind of multi-functional straight tube radioactive waste control oxygen incinerator and incinerating method |
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Cited By (4)
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| CN110715296A (en) * | 2019-09-28 | 2020-01-21 | 山西方洁路路通净化技术有限公司 | Negative pressure smokeless cylinder type incineration system |
| CN111473339A (en) * | 2020-03-20 | 2020-07-31 | 中国辐射防护研究院 | Combustible radioactive waste improved pyrolysis incinerator |
| CN111473338A (en) * | 2020-03-20 | 2020-07-31 | 中国辐射防护研究院 | Improved pyrolysis incineration process for combustible radioactive wastes |
| CN113266828A (en) * | 2021-04-08 | 2021-08-17 | 中国辐射防护研究院 | Novel radioactive waste pyrolysis combustion furnace |
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| CN110715296A (en) * | 2019-09-28 | 2020-01-21 | 山西方洁路路通净化技术有限公司 | Negative pressure smokeless cylinder type incineration system |
| CN111473339A (en) * | 2020-03-20 | 2020-07-31 | 中国辐射防护研究院 | Combustible radioactive waste improved pyrolysis incinerator |
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| CN111473338B (en) * | 2020-03-20 | 2023-06-23 | 中国辐射防护研究院 | Improved pyrolysis incineration process for combustible radioactive waste |
| CN113266828A (en) * | 2021-04-08 | 2021-08-17 | 中国辐射防护研究院 | Novel radioactive waste pyrolysis combustion furnace |
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