CN110360575A - A kind of incineration system at dangerous waste disposition center - Google Patents
A kind of incineration system at dangerous waste disposition center Download PDFInfo
- Publication number
- CN110360575A CN110360575A CN201910737666.8A CN201910737666A CN110360575A CN 110360575 A CN110360575 A CN 110360575A CN 201910737666 A CN201910737666 A CN 201910737666A CN 110360575 A CN110360575 A CN 110360575A
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- Prior art keywords
- waste
- dangerous waste
- liquid
- flue gas
- dangerous
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- 239000002699 waste material Substances 0.000 title claims abstract description 164
- 239000007788 liquid Substances 0.000 claims abstract description 90
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000003546 flue gas Substances 0.000 claims abstract description 53
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 230000009977 dual effect Effects 0.000 claims abstract description 33
- 238000010304 firing Methods 0.000 claims abstract description 33
- 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 20
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 16
- 238000004056 waste incineration Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 11
- 230000003197 catalytic effect Effects 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000015556 catabolic process Effects 0.000 claims abstract description 8
- 238000006731 degradation reaction Methods 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 239000012717 electrostatic precipitator Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229910001868 water Inorganic materials 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 7
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 239000010808 liquid waste Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 230000000694 effects Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 150000002240 furans Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
-
- 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
- F23G7/008—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for liquid waste
-
- 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
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/002—Supplying water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of incineration system at dangerous waste disposition center, belong to technical field of waste incineration, its key points of the technical solution are that including dangerous waste incineration system, flue gas filter system, deacidifying flue gas system and slag removing system；Dangerous waste incineration system includes the feeding mechanism being sequentially connected, rotary kiln, dual firing chamber and three combustion rooms, flue gas filter system includes the waste heat boiler being sequentially connected, electrostatic precipitator and dioxin catalytic degradation device, deacidifying flue gas system includes dry-process deacidification device, bag-type dust collector, wet process deacidifying device, GGH and chimney, slag removing system includes the slag remover being sequentially connected, solidification equipment and dangerous waste landfill yard, dangerous waste incineration system further includes that waste liquid one fires room, and the flue gas waste discharge mouth that waste liquid one fires room leads to dual firing chamber.Solid-state or Volatile liquid dangerous waste are burned using rotary kiln, room is fired using waste liquid one to liquid dangerous waste and is burned, in order to which dangerous waste burning sufficiently and is improved efficiency of combustion.
Description
Technical field
The invention belongs to technical field of waste incineration, refer in particular to a kind of incineration system at dangerous waste disposition center.
Background technique
Incineration system provides powerful guarantee for the rubbish safe disposal of city and surrounding area, pacifies for maintenance area environment
Entirely, the sustainable development of regional economy society is promoted to played an important role.
With the development of national economy, the hazardous waste that enterprises and institutions generate is more and more, caused by many enterprises
Hazardous waste does not all obtain the processing and disposition of effective and safe.These hazardous wastes include heavy metal waste, waste emulsified mixture,
Spent organic solvent, useless coating, waste oil paint, waste cyanide, useless drug etc..Due to the storage of hazardous waste, utilization, processing, place
It is improper to set, and not only be easy to cause atmosphere, water body and soil pollution, can also seriously affect ecological environment and people's body is strong
Health, while also constraining sustainable development.
Summary of the invention
The object of the present invention is to provide a kind of incineration system, dangerous waste can not only be effectively treated, but also can
Treatment effeciency is improved, it is first preceding because of pressure brought by dangerous waste incineration disposal scarce capacity to alleviate.
The object of the present invention is achieved like this: the incineration system at a kind of dangerous waste disposition center, wherein burn including dangerous waste
System, flue gas filter system, deacidifying flue gas system and slag removing system；The dangerous waste incineration system includes the charging being sequentially connected
Mechanism, rotary kiln, dual firing chamber and three combustion rooms, the flue gas filter system includes the waste heat boiler being sequentially connected, electrostatic precipitation
Device and dioxin catalytic degradation device, the deacidifying flue gas system includes dry-process deacidification device, bag-type dust collector, wet
Method deacidifying device, GGH and chimney, the slag removing system include the slag remover, solidification equipment and dangerous waste being sequentially connected
Landfill yard；The clinker waste discharge mouth of the dual firing chamber leads to the slag remover, and the flue gas waste discharge mouth of three combustion room is led to described remaining
Heat boiler, the flue gas waste discharge mouth of the dioxin catalytic degradation device lead to the dry-process deacidification device, three combustion room, waste heat
Ash discharging hole on boiler, electrostatic precipitator, dry-process deacidification device and bag-type dust collector each leads to the solidification equipment.
The present invention is further arranged to: the dangerous waste incineration system further includes that waste liquid one fires room, and the waste liquid one fires room
Flue gas waste discharge mouth leads to the dual firing chamber, and it is fluidized bed incinerator that the waste liquid one, which fires room, and the fluidized bed incinerator includes combustion
The air compartment for burning room and being set to below combustion chamber, the combustion chamber is divided into the emulsion zone of lower section and the dilute-phase zone of top, described
Certain thickness inert bed material is equipped on emulsion zone, the feeding mechanism is delivered to the burning by the top of combustion chamber
It is indoor.
The present invention is further arranged to: the feeding mechanism includes the first charging transported to Volatile liquid dangerous waste
Device, the second feeding device that liquid dangerous waste is transported, the third feeding device that semisolid dangerous waste is transported and
The 4th feeding device that solid-state dangerous waste is transported；First feeding device, third feeding device and the 4th charging dress
It sets and dangerous waste is delivered in the rotary kiln, dangerous waste is delivered to the waste liquid one and fires interior by second feeding device；
First feeding device includes the first elevator that the property of will volatilize liquid dangerous waste is delivered in the rotary kiln, institute
The second feeding device is stated to include the waste liquid tank for storing liquid dangerous waste and be delivered to the liquid in waste liquid tank described useless
Liquid one fires indoor waste drains pump, and the third feeding device includes the second elevator transported to semisolid dangerous waste, incites somebody to action half
It crusher that solid-state dangerous waste is crushed, the blender that the semisolid dangerous waste and liquid dangerous waste of crushing are mixed and will mix
Solid-liquid dangerous waste after conjunction is delivered to the plunger pump in the rotary kiln, and the 4th feeding device includes grabbing to solid-state dangerous waste
The grab bucket crane that takes and solid-state dangerous waste is pushed into the charger in the rotary kiln；First is provided on the waste drains pump
Discharge port and the second discharge port, first discharge port lead to the waste liquid one and fire room, and second discharge port leads to described mixed
Glassware, the first discharge port and the second discharge port are provided on the waste drains pump, and first discharge port leads to the waste liquid one and fires
Room, second discharge port leads to the blender, is additionally provided with liquid waste spray gun on the first discharge port of the waste drains pump, described
Screenings spray gun is additionally provided on the discharge port of plunger pump.
The present invention is further arranged to: the dangerous waste incineration system further includes combustion-supporting, and there are three the combustion-supportings, and point
It is not set on the kiln hood of the rotary kiln, the waste liquid one fires on room and on the side wall on the dual firing chamber top；It is described to help
Burner includes oil tank, by oil pump that the oil in oil tank conveys and the oil gun being set in oil pump out of the mouth.
The present invention is further arranged to: the dangerous waste incineration system further includes for inhibiting NOx emission in the dual firing chamber
Device for deoxidizing, the device for deoxidizing uses selective non-catalytic reduction method (SNCR), convey in Xiang Suoshu dual firing chamber ammonium hydroxide with
And large quantity of air, chemical principle are as follows:
NH3·H2O→NH3+H2O
4NH3+4NO+O2→4N2+6H2O
4NH3+2NO2+O2→3N2+6H2O
The device for deoxidizing includes ammonia water tank, by liquid pump that the liquid in ammonia water tank conveys and is set to liquid
Pump the spray gun on liquid outlet.
The present invention is further arranged to: the dry-process deacidification device includes chilling tower and dry type reaction tower, the cloth bag
Dust-extraction unit is set between the chilling tower and the dry type reaction tower；The wet process deacidifying device includes extracting tower, described
It is provided with two layers of lye at the top of extracting tower and sprays system, the intermediate position of the extracting tower is also built-in with demister, described de-
Acid tower there are two and respectively level-one extracting tower and second level extracting tower, flue gas is by entering described one after the dry type reaction tower
In grade extracting tower, enter back into the second level extracting tower, from the smoke evacuation cigarette after finally being heated up by the GGH to flue gas
Chimney discharge.
The present invention is further arranged to: the incineration system further includes will be remaining in the dioxin catalytic degradation device
The purification device that dioxin is handled, the purification device include active carbon storehouse and are delivered to the powdered carbon in active carbon storehouse
The screw conveyor of the bag-type dust collector front end.
The beneficial effects of the present invention are: 1, solid-state or Volatile liquid dangerous waste are burned using rotary kiln, to liquid
Dangerous waste using waste liquid one fire room burned, in order to by dangerous waste burning sufficiently and improve efficiency of combustion；2, non-using selectivity
Catalytic reduction method handles the NOx in dual firing chamber, by the way that ammonium hydroxide (NH is added into dual firing chamber3·H2O), in high temperature action
NOx reduction is become nitrogen and water by the oxygen in lower and air, since this method is not required to the effect of catalyst, to can avoid catalysis
Agent blocking or the generation of poisoning problem.
Detailed description of the invention
Fig. 1 is incineration system structural schematic diagram of the invention；
Fig. 2 is the partial structure diagram of deacidifying flue gas system of the invention；
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the present invention, with reference to the accompanying drawing to this hair
Technical solution in bright embodiment is clearly and completely described:
As depicted in figs. 1 and 2, the incineration system at a kind of dangerous waste disposition center, wherein including dangerous waste incineration system, flue gas
Filtration system, deacidifying flue gas system and slag removing system.
Dangerous waste incineration system includes that the feeding mechanism being sequentially connected, rotary kiln, dual firing chamber and three combustion rooms, dangerous waste burn system
System further includes that waste liquid one fires room, and the flue gas waste discharge mouth that waste liquid one fires room leads to dual firing chamber；Feeding mechanism includes to Volatile liquid
The first feeding device that dangerous waste is transported, carries out semisolid dangerous waste at the second feeding device transported to liquid dangerous waste
The third feeding device of transport and the 4th feeding device that solid-state dangerous waste is transported；First feeding device, third charging
Dangerous waste is delivered in rotary kiln by device and the 4th feeding device, and dangerous waste is delivered to waste liquid one and fires room by the second feeding device
It is interior；
First feeding device includes the first elevator that the property of will volatilize liquid dangerous waste is delivered in rotary kiln, the second charging dress
It sets the waste liquid tank including being stored to liquid dangerous waste and the liquid in waste liquid tank is delivered to waste liquid one and fire indoor waste liquid
Pump, third feeding device include the second elevator that semisolid dangerous waste is transported, semisolid dangerous waste crushed it is broken
Broken machine, the blender that the semisolid dangerous waste and liquid dangerous waste of crushing are mixed and mixed solid-liquid dangerous waste is delivered to
Plunger pump in rotary kiln, the 4th feeding device include the grab bucket crane grabbed to solid-state dangerous waste and by solid-state dangerous waste
Push to the charger in rotary kiln；The first discharge port and the second discharge port are provided on waste drains pump, the first discharge port leads to useless
Liquid one fires room, and the second discharge port leads to blender, the first discharge port and the second discharge port, the first discharge port are provided on waste drains pump
Lead to waste liquid one and fire room, the second discharge port leads to blender, is additionally provided with liquid waste spray gun, plunger on the first discharge port of waste drains pump
Screenings spray gun is additionally provided on the discharge port of pump.By solid-state, semisolid and Volatile liquid dangerous waste be sent in rotary kiln into
Row burns, since efficiency of combustion of the liquid dangerous waste in rotary kiln is low, by liquid dangerous waste be sent to waste liquid one fire it is indoor into
Row burning, so that dangerous waste burning is abundant and improves efficiency of combustion.
For liquid dangerous waste, liquid dangerous waste is stored in waste liquid tank, then waste liquid is transported to waste liquid one by waste drains pump and is fired
It burns interior；For solid-state dangerous waste, grab bucket crane is grabbed using bridge crane and hydraulic grab, is then fed into
Onto charger, then dangerous waste is pushed in rotary kiln by charger and is burnt；For semisolid dangerous waste, to reduce waste liquid one
Indoor liquid dangerous waste treating capacity is fired, first semisolid dangerous waste is transported in crusher by the second elevator and is crushed, then
The semisolid dangerous waste of crushing and a small amount of liquid dangerous waste are sent into blender and mixed, then is transported in rotary kiln by plunger pump
It burns；It, will by the first elevator after the property of will volatilize liquid dangerous waste is packed into small-sized pail pack for Volatile liquid dangerous waste
Small-sized pail pack is sent in the charger at rotary kiln feed inlet, then is pushed in rotary kiln and burnt by charger
It burns.
Rotary kiln uses cylinder rotary structure, and outer wall steel, inner wall are constituted using refractory material.Its rotation speed
0.3-3.1rpm, variable ratio frequency changer speed regulation, in ignition temperature at 800-1000 DEG C.Kiln hood material leakage situation in order to prevent tilts 2 °
Setting.It is slowly rotated to improve efficiency of combustion and setting two carrying rollers in lower part and engaged with rotation drive device, upper end feeding port is thrown
The waste entered stirs repeatedly, and pyrolytic gasification is conveyed with burning, gradually to dual firing chamber direction at high temperature, discharges combustion residue, leads to
Control combustion air volume is crossed, fully reacting of burning in rotary kiln is made.It is fluidized bed incinerator, fluidized bed incinerator packet that waste liquid one, which fires room,
The air compartment for including combustion chamber and being set to below combustion chamber, combustion chamber are divided into the emulsion zone of lower section and the dilute-phase zone of top, close phase
Be equipped with certain thickness inert bed material in area, waste drains pump by liquid dangerous waste out of, combustion chamber top spray to combustion chamber, with
Evaporate liquid dangerous waste during mixing with bed material.The high-temperature flue gas that room comes out is fired from rotary kiln or waste liquid one to enter
It after dual firing chamber, is mixed strongly with Secondary Air is passed through in dual firing chamber, dual firing chamber is made to become oxygen-excess combustion, kept 6 in dual firing chamber's flue gas
~10% oxygen content, dual firing chamber's temperature are not less than 1100 DEG C of full combustions, and the residence time is more than 3.7 seconds, to guarantee waste
Full combustion.The high-temperature flue gas come out from dual firing chamber burns away into after three combustion rooms, and three combustion room temperatures are not less than 1000 DEG C
Full combustion further extends flue gas residence time under the high temperature conditions, to guarantee the full combustion of waste, make dioxin,
Furans are decomposed completely.
When dangerous waste calorific value is lower, to ensure the incineration temperature in dual firing chamber not less than 1100 DEG C, in dangerous waste incineration system
Be additionally provided with combustion-supporting, there are three combustion-supportings, and be respectively arranged on the kiln hood of rotary kiln, waste liquid one fire room on and dual firing chamber
On the side wall on top；Combustion-supporting includes oil tank, by oil pump that the oil in oil tank conveys and is set in oil pump out of the mouth
Oil gun, diesel oil is sprayed by rotary kiln by oil gun, waste liquid one fires in room and dual firing chamber, to achieve the purpose that heating.
Dangerous waste incineration system further includes the device for deoxidizing for inhibiting NOx emission in dual firing chamber, and device for deoxidizing is using selection
Property noncatalytic reduction (SNCR), ammonium hydroxide and large quantity of air, chemical principle are conveyed into dual firing chamber are as follows:
NH3·H2O→NH3+H2O
4NH3+4NO+O2→4N2+6H2O
4NH3+2NO2+O2→3N2+6H2O
Device for deoxidizing includes ammonia water tank, by liquid pump that the liquid in ammonia water tank conveys and is set to liquid and pumps out
Spray gun on liquid mouth.At 850~1100 DEG C of flue-gas temperature, O2Under conditions of coexisting, ammonium hydroxide is sprayed into dual firing chamber by spray gun
(NH3·H2O), NOx reduction is become into nitrogen and water, since this method is not required to the effect of catalyst, so that it is stifled to can avoid catalyst
The generation of plug or poisoning problem.
Flue gas filter system includes the waste heat boiler being sequentially connected, electrostatic precipitator and dioxin catalytic degradation dress
It sets；Since the flue-gas temperature of three combustion room outlets is 1050 DEG C or so, and the excess heat in flue gas is very big, therefore uses waste heat pot
Furnace carries out heat exchange cooling to it, under the action of waste heat boiler, after flue-gas temperature is down to 350 DEG C by 1100~1150 DEG C, then into
Enter and be filtered into electrostatic precipitator, to improve dioxin catalytic degradation device to the removal efficiency of dioxin, electrostatic is removed
Dirt device (ESP) is a kind of novel high-efficiency dust remover, and the superior functionality with high efficiency of dust collection, processing high concentration utilizes electric object
Principle of science removes the dust and drop in flue gas, under 300-420 DEG C of hot conditions, by the catalytic action of TiO2,
The catalytic degradation of dioxin and furans may be implemented, principle is as follows:
Under the effect of the catalyst, it is even higher to can achieve 85% or more for the removal efficiency of dioxin.In this way, can show
Landing reduces the concentration level of the dioxin in incineration tail gas.
Deacidifying flue gas system includes dry-process deacidification device, bag-type dust collector, wet process deacidifying device, GGH and smoke evacuation cigarette
Chimney；Dry-process deacidification device includes chilling tower and dry type reaction tower, and bag-type dust collector is set to chilling tower and dry type reaction tower
Between, chilling tower is cooled down flue gas again using water-cooled, and after being dusted by bag-type dust collector, it is anti-to enter back into dry type
It answers in tower, the sodium bicarbonate (NaHCO after heating is passed through into dry type reaction tower3) with flue gas in SO2Hybrid reaction is carried out with HCl,
Sodium bicarbonate, which decomposes, under high temperature generates sodium carbonate, water and carbon dioxide, and newly generated sodium carbonate has the anti-of height in generation moment
Activity is answered, can spontaneously be reacted with the acid contaminant in flue gas, to achieve the effect that depickling.Wet process deacidifying device packet
Extracting tower is included, two layers of lye is provided at the top of extracting tower and sprays system, the intermediate position of extracting tower is also built-in with demister, takes off
There are two acid towers and respectively level-one extracting tower and second level extracting tower, flue gas enter level-one extracting tower after passing through dry type reaction tower
It is interior, it then enters back into second level extracting tower and carries out secondary washing, have GGH (cigarette to mitigate the corrosion to chimney, therefore increasing
Gas heat exchanger), flue gas after washing is heated using former flue gas, reaches exhaust gas temperature on dew-point temperature, to mitigate
Corrosion, the flue gas after last chimney will heat up are discharged.The medicament of wet process depickling uses 30% lye (NaOH), will be certain dense
The lye of degree can flow downward with spray system injection from bottom to top by being pumped into extracting tower, when flue gas enters in extracting tower
Lye drop reacts, and washs SO2、SO3, the pernicious gases such as HF, HCl.Extracting tower is furnished with 2 NaOH solution circulating pumps, using unit style
The method of operation, the lye sprayed from high-efficiency helical atomizer form very thin misty liquid droplets under spray effect, produce in tower
Raw efficiently adequately gas-liquid-solid contact.Slurries after reaction fall into tower bottom, and mixed slurries are exported through discharge pump, by washing
The flue gas for washing processing flows through demister, and the slurries droplet for here carrying flue gas removes, in the upper surface of demister and following each
Equipped with one group of nozzle be used to rinse demister, to prevent demister from blocking, it is washed after flue gas eventually by GGH and smoke evacuation cigarette
Chimney discharge.
In order to realize that dioxin reaches the EU criteria of 0.1ngTEQ/m3, incineration system further includes urging dioxin
Change the purification device that remaining dioxin is handled in decomposition apparatus, purification device includes active carbon storehouse and by active carbon storehouse
Interior powdered carbon is delivered to the screw conveyor of bag-type dust collector front end.Before flue gas enters bag-type dust collector, from active carbon
The screw conveyor in orlop portion is accessed active powdered carbon suddenly with high-pressure rubber pipe (wear-resisting) by compressed air by venturi feeder sleeve
In the exiting flue gas pipeline of cold tower, and the active powdered carbon that granularity is 200 mesh or so is sprayed into against flue gas flow direction, into bag-type dust
These active powdered carbons are equally trapped within cloth bag surface after device, and when flue gas passes through cloth bag, the dioxin in flue gas is because being lived
Property charcoal absorption and be purified.
Slag removing system includes the slag remover being sequentially connected, solidification equipment and dangerous waste landfill yard；The clinker waste discharge of dual firing chamber
Mouth leads to slag remover, the row on three combustion rooms, waste heat boiler, electrostatic precipitator, dry-process deacidification device and bag-type dust collector
Grey mouth leads to solidification equipment, and slag remover uses scraping plate type eliminator, to be conveyed to the waste residue generated in dual firing chamber, solidification dress
Setting is that waste residue and dust are carried out compression processing, finally transports dangerous waste landfill yard again and carries out concentration landfill.
Above-described embodiment is only presently preferred embodiments of the present invention, rather than whole embodiments, the ordinary skill people of this field
Without making creative work, this all should belong in the other embodiments obtained based on the above embodiment to member
The range of protection is invented, therefore: the equivalence changes that all structures under this invention, shape, principle are done should all be covered by of the invention
Within protection scope.
Claims (8)
1. a kind of incineration system at dangerous waste disposition center, it is characterised in that: including dangerous waste incineration system, flue gas filter system, cigarette
Qi exhaustion acid system and slag removing system；The dangerous waste incineration system include the feeding mechanism, rotary kiln, dual firing chamber that are sequentially connected with
And three combustion room, the flue gas filter system include be sequentially connected waste heat boiler, electrostatic precipitator and dioxin catalysis drop
Device is solved, the deacidifying flue gas system includes dry-process deacidification device, bag-type dust collector, wet process deacidifying device, GGH and smoke evacuation
Chimney, the slag removing system include the slag remover being sequentially connected, solidification equipment and dangerous waste landfill yard；The clinker of the dual firing chamber
Waste discharge mouth leads to the slag remover, and the flue gas waste discharge mouth of three combustion room leads to the waste heat boiler, the dioxin catalysis drop
The flue gas waste discharge mouth of solution device leads to the dry-process deacidification device, three combustion room, waste heat boiler, electrostatic precipitator, dry method
Ash discharging hole on deacidifying device and bag-type dust collector each leads to the solidification equipment.
2. a kind of incineration system at dangerous waste disposition center according to claim 1, it is characterised in that: the dangerous waste burns system
System further includes that waste liquid one fires room, and the flue gas waste discharge mouth that the waste liquid one fires room leads to the dual firing chamber, and the waste liquid one fires room and is
Fluidized bed incinerator, the fluidized bed incinerator include combustion chamber and the air compartment that is set to below combustion chamber, the combustion chamber
It is divided into the emulsion zone of lower section and the dilute-phase zone of top, is equipped with certain thickness inert bed material, the charging on the emulsion zone
Mechanism is delivered in the combustion chamber by the top of combustion chamber.
3. a kind of incineration system at dangerous waste disposition center according to claim 2, it is characterised in that: the feeding mechanism packet
Include the first feeding device transported to Volatile liquid dangerous waste, the second feeding device transported to liquid dangerous waste, right
The third feeding device that semisolid dangerous waste is transported and the 4th feeding device that solid-state dangerous waste is transported；Described first
Dangerous waste is delivered in the rotary kiln by feeding device, third feeding device and the 4th feeding device, the second charging dress
It sets and dangerous waste is delivered to the waste liquid one fires interior.
4. a kind of incineration system at dangerous waste disposition center according to claim 3, it is characterised in that: the first charging dress
The first elevator being delivered in the rotary kiln including the property of will volatilize liquid dangerous waste is set, second feeding device includes to liquid
It waste liquid tank that state dangerous waste is stored and the liquid in waste liquid tank is delivered to the waste liquid one fires indoor waste drains pump, it is described
Third feeding device include the second elevator that semisolid dangerous waste is transported, semisolid dangerous waste crushed it is broken
Machine, the blender mixed to the semisolid dangerous waste and liquid dangerous waste of crushing and mixed solid-liquid dangerous waste is delivered to institute
The plunger pump in rotary kiln is stated, the 4th feeding device includes the grab bucket crane grabbed to solid-state dangerous waste and will consolidate
State dangerous waste pushes to the charger in the rotary kiln；The first discharge port and the second discharge port, institute are provided on the waste drains pump
It states the first discharge port and leads to the waste liquid one and fire room, second discharge port leads to the blender, and the first of the waste drains pump
It is additionally provided with liquid waste spray gun on discharge port, screenings spray gun is additionally provided on the discharge port of the plunger pump.
5. a kind of incineration system at dangerous waste disposition center according to claim 1, it is characterised in that: the dangerous waste burns system
System further includes combustion-supporting, and there are three the combustion-supportings, and is respectively arranged on the kiln hood of the rotary kiln, the combustion of the waste liquid one room
On the side wall on the upper and described dual firing chamber top；The combustion-supporting include oil tank, the oil pump for conveying the oil in oil tank with
And it is set to the oil gun in oil pump out of the mouth.
6. a kind of incineration system at dangerous waste disposition center according to claim 1, it is characterised in that: the dangerous waste burns system
System further includes the device for deoxidizing for inhibiting NOx emission in the dual firing chamber, and the device for deoxidizing uses selective non-catalytic also
Former method (SNCR) conveys ammonium hydroxide and large quantity of air, chemical principle in Xiang Suoshu dual firing chamber are as follows:
NH3·H2O→NH3+H2O
4NH3+4NO+O2→4N2+6H2O
4NH3+2NO2+O2→3N2+6H2O
The device for deoxidizing includes ammonia water tank, by liquid pump that the liquid in ammonia water tank conveys and is set to liquid and pumps out
Spray gun on liquid mouth.
7. a kind of incineration system at dangerous waste disposition center according to claim 1, it is characterised in that: the dry-process deacidification dress
Set including chilling tower and dry type reaction tower, the bag-type dust collector be set to the chilling tower and the dry type reaction tower it
Between；The wet process deacidifying device includes extracting tower, and two layers of lye is provided at the top of the extracting tower and sprays system, the depickling
The intermediate position of tower is also built-in with demister, the extracting tower there are two and respectively level-one extracting tower and second level extracting tower, cigarette
Gas is entered back into the second level extracting tower by entering in the level-one extracting tower after the dry type reaction tower, finally by
The GGH is discharged after heating up to flue gas from the chimney.
8. a kind of flue gas incineration system at dangerous waste disposition center according to claim 1, it is characterised in that: the burning system
System further includes the purification device for handling dioxin remaining in the dioxin catalytic degradation device, the purification device
The screw conveyor of the bag-type dust collector front end is delivered to including active carbon storehouse and by the powdered carbon in active carbon storehouse.
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| CN111156523A (en) * | 2020-01-17 | 2020-05-15 | 台州市德长环保有限公司 | Incinerator for co-processing solid hazardous waste and liquid hazardous waste and processing method |
| CN112212347A (en) * | 2020-11-04 | 2021-01-12 | 大江环境股份有限公司 | Laboratory hazardous waste cooperative treatment system and method |
| CN113048480A (en) * | 2019-12-27 | 2021-06-29 | 四川伟程环保技术开发有限公司 | Harmless treatment method for garbage in high-altitude low-oxygen area |
| CN113776061A (en) * | 2021-09-22 | 2021-12-10 | 北京京城环保股份有限公司 | Hazardous waste incineration flue gas purification and waste heat recovery device and method thereof |
| CN113970100A (en) * | 2020-07-22 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Hazardous waste pyrolysis incineration system and hazardous waste pyrolysis incineration method |
| CN114001357A (en) * | 2021-09-24 | 2022-02-01 | 中国科学院广州能源研究所 | A mobile medical waste cleaning heat treatment device |
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| CN113970100B (en) * | 2020-07-22 | 2023-06-23 | 中冶长天国际工程有限责任公司 | Hazardous waste pyrolysis incineration system and hazardous waste pyrolysis incineration method |
| CN112212347A (en) * | 2020-11-04 | 2021-01-12 | 大江环境股份有限公司 | Laboratory hazardous waste cooperative treatment system and method |
| CN113776061A (en) * | 2021-09-22 | 2021-12-10 | 北京京城环保股份有限公司 | Hazardous waste incineration flue gas purification and waste heat recovery device and method thereof |
| CN114001357A (en) * | 2021-09-24 | 2022-02-01 | 中国科学院广州能源研究所 | A mobile medical waste cleaning heat treatment device |
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Application publication date: 20191022 |