CN110145749A - A kind of safe incineration disposal system and method for super enriching plant - Google Patents
A kind of safe incineration disposal system and method for super enriching plant Download PDFInfo
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- CN110145749A CN110145749A CN201910405789.1A CN201910405789A CN110145749A CN 110145749 A CN110145749 A CN 110145749A CN 201910405789 A CN201910405789 A CN 201910405789A CN 110145749 A CN110145749 A CN 110145749A
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- Prior art keywords
- heat exchanger
- firing chamber
- incinerator
- dual firing
- disposal system
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000009977 dual effect Effects 0.000 claims abstract description 45
- 238000010304 firing Methods 0.000 claims abstract description 39
- 239000000428 dust Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000005201 scrubbing Methods 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000010410 dusting Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 230000000505 pernicious effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 10
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 4
- 241000196324 Embryophyta Species 0.000 description 20
- 239000000463 material Substances 0.000 description 16
- 238000012545 processing Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000219318 Amaranthus Species 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XURIQWBLYMJSLS-UHFFFAOYSA-N 1,4,7,10-tetrazacyclododecan-2-one Chemical compound O=C1CNCCNCCNCCN1 XURIQWBLYMJSLS-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000005303 weighing 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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
-
- 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
- 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
-
- 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
- F23J15/027—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 cyclone separators
-
- 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
- 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
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/103—Combustion in two or more stages in separate chambers
-
- 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
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/26—Biowaste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/60—Heavy metals; Compounds thereof
-
- 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
- F23J2217/101—Baghouse type
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of safe incineration disposal system and methods of super enriching plant, including incinerator, dual firing chamber, a heat exchanger, secondary heat exchanger, disposable dust remover, secondary filter, exhaust blower and scrubbing tower；The side wall of the incinerator is equipped with burner, and the exhanst gas outlet of the incinerator is in turn connected to the dual firing chamber, a heat exchanger, secondary heat exchanger, disposable dust remover, secondary filter, exhaust blower and scrubbing tower by pipeline.The present invention can effectively handle the harmful substances such as heavy metal element and dust, sulfide in tail gas by burning twice, dual cooling, final dusting, spray washing, realize the safe minimizing of enriching plant.
Description
Technical field
The invention belongs to super enriching plant disposal technology field more particularly to a kind of safe incineration disposal systems of super enriching plant
System and method.
Background technique
The one kind of phytoremediation technology as bioremediation technology, except have rehabilitation cost it is low, it is environmental-friendly, without secondary dirt
Dye did not generated soil texture outside the advantages that destruction, moreover it is possible to improve soil ecology, reduce soil erosion, increases carbon fixation.In recent years
It is widely used in heavy-metal contaminated soil reparation, is a kind of green restorative procedure.
Enriching plant biomass as more and more super enriching plants are found, for heavy-metal contaminated soil reparation
It increased dramatically, if will cause secondary pollution without processing.The method of processing super enriching plant has incineration method, composting method, compression
Landfill method, liquid-phase extraction method, high-temperature decomposition etc..Wherein incineration method is that decrement treatment is carried out to enriching plant most efficiently, most just
Prompt method.But the heavy metal in the tail gas and tail gas generated in burning process has to rationally be administered.Currently,
Enriching plant handles still not formed a set of effective technology that can be widely used in burning disposal enriching plant in market.
Summary of the invention
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, an object of the present invention
Be to provide a kind of safe incineration disposal system and method for super enriching plant, by burning twice, dual cooling, final dusting,
Spray washing effectively handles the harmful substances such as heavy metal element and dust, sulfide in tail gas, realizes the peace of enriching plant
Full minimizing.
In order to solve the above technical problems, the application adopts the following technical scheme that
A kind of safe incineration disposal system of super enriching plant, it is characterised in that: including incinerator, dual firing chamber, primary heat exchange
Device, secondary heat exchanger, disposable dust remover, secondary filter, exhaust blower and scrubbing tower；The side wall of the incinerator is equipped with burning
The exhanst gas outlet of device, the incinerator is in turn connected to the dual firing chamber, heat exchanger, secondary heat exchanger, one by pipeline
Secondary deduster, secondary filter, exhaust blower and scrubbing tower.
Further, the incinerator is equipped with fire box temperature sensor and furnace pressure sensor, and inside is equipped with reciprocal
Fire grate.
Further, a heat exchanger uses water cooling heat exchanger, and the secondary heat exchanger uses air heat exchanger, institute
Hot-air after stating air heat exchanger heating introduces the incinerator and dual firing chamber by air blower.
Further, the dual firing chamber use cyclone type dual firing chamber, in be equipped with dual firing chamber's temperature sensor and
Dual firing chamber's pressure sensor.
Further, the disposable dust remover uses cyclone dust collectors, and the secondary filter uses bag filter.
Further, the pipeline for connecting the disposable dust remover and secondary filter is equipped with overtemperature alarm valve.
Further, the scrubbing tower is using three layers of washing, the multilayered structure of two layers demisting.
Further, chimney is also connected with after the scrubbing tower.
A kind of safe incineration disposal method of super enriching plant, includes the following steps:
By the broken granulation of super enriching plant；
By high temperature pyrolysis burning in the super enriching plant investment incinerator after broken granulation, ignition temperature is at 800-1000 DEG C
Left and right；
High-temperature flue gas after burning enters dual firing chamber, and the organic substance not decomposed completely in high-temperature flue gas is under oxygen-enriched state
Further burning；
The high-temperature flue gas come out through dual firing chamber carries out dual cooling, temperature decline by water cooling heat exchanger and air heat exchanger
To 200 DEG C or less；
Flue gas after cooling enters cyclone dust collectors and bag filter, carries out final dusting；
Flue gas after final dusting enters spray scrubber, removes inertia pernicious gas and little particle by spray scrubber
Dust, eventually by chimney qualified discharge.
Further, further include following steps: fresh air heats up by air heat exchanger heat exchange to be burnt by air blower introducing
Burn furnace and dual firing chamber.
Compared with prior art, the device have the advantages that being:
1, by burning twice, dual cooling, final dusting, spray washing can effectively handle the heavy metal in tail gas
The harmful substances such as element and dust, sulfide, tail gas racks up after disposition reaches country standard entirely.
2, using dry method dust, process, required small investment.
3, fresh air heats up sharp again by air blower introducing incinerator and dual firing chamber, the energy by air heat exchanger heat exchange
With operating cost is low.
4, EM equipment module, it is easy for assemble or unload, it can transport after having repaired an area to next area use.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Wherein: 1- lifting material feeding mechanism；2- incinerator；3- igniter；4- dual firing chamber；5- pipeline；6- water cooling heat exchanger；7-
Air heat exchanger；8- cyclone dust collectors；9- overtemperature alarm valve；10- bag filter；11- exhaust blower；12- scrubbing tower；13- cigarette
Chimney.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of safe incineration disposal system of super enriching plant, including incinerator 2, dual firing chamber 4, water cooling heat exchanger
6, air heat exchanger 7, cyclone dust collectors 8, bag filter 10, exhaust blower 11, scrubbing tower 12, chimney 13 and air blower, control
System processed etc..Dual firing chamber 4, water cooling heat exchanger 6, air heat exchanger are in turn connected to by pipeline 5 in the exhanst gas outlet of incinerator 2
7, cyclone dust collectors 8, bag filter 10, exhaust blower 11, scrubbing tower 12 and chimney 13 are equipped with combustion on the side wall of incinerator 2
Burner 3.
In the present embodiment, cyclone dust removal, 8 are used for the pre- dedusting of dust, are made of Whirlwind barrel, flue-dust retainer, collection blast cap.Cloth bag
Deduster 10 uses high efficiency filter deduster, and filter effect is up to 99.9%.Mainly by upper box, middle cabinet, lower box and steel
Bracket and ash bucket form, and filter bag uses material resistant to high temperature, and Pulse anti-blow device built in deduster can be with automatic ash removing.
There is overtemperature alarm valve 9 between cyclone dust collectors 8 and bag filter 10, overtemperature alarm valve 9 can be monitored in real time
Temperature of the pipe-line system at this, avoids when the temperature is excessively high, flue gas damages bag filter 10.
Exhaust blower 11 uses centrifugal high pressure fan, is made of, makes components such as shell, axle center, impeller, bearing, motor, belts
Whole system is in negative pressure state.Chimney 13 has online temperature, pressure, SO for discharging purified flue gas on chimneyx、NOx、
The monitoring device of heavy metal element.
The present embodiment, by burning twice, dual cooling, final dusting, spray washing can handle effectively in tail gas
Heavy metal element and the harmful substances such as dust, sulfide, realize the safe minimizing of enriching plant, tail gas racks up after disposition
Reach country standard entirely.
Referring to Fig. 1, in one embodiment, the present embodiment disposal system, incinerator 2 uses reciprocal grate furnace structure, in furnace
Structure is more backhauls, builds firebrick wall, is poured aluminum silicate fire resistant material, and outside uses rock wool heat-preservation.Incinerator is with sky
Gas is equipped with automatic ignition device, burns material sufficiently in furnace, in-furnace temperature can be made to reach 900 DEG C as medium.In furnace
There are fire box temperature sensor and furnace pressure sensor (not indicating in figure), in-furnace temperature and pressure is monitored online, burner 3 is total
Two, it is respectively used to incinerator 2 and dual firing chamber 4, provides power for material burning.Dual firing chamber 4 is fired using cyclone type two
Room is equipped with venting for vertical double return structures, and for flue gas to be carried out secondary burning, 4 Nei You dual firing chamber temperature of dual firing chamber is passed
Temperature and pressure in dual firing chamber is monitored online in sensor and dual firing chamber's pressure sensor (not indicating in figure).
It should be noted that in actual design, scrubbing tower 12, can using three layers of washing, the multilayered structure of two layers demisting
Sufficiently to wash flue gas, the purification of flue gas is realized.
Referring to Fig. 1, in another embodiment, the present embodiment disposal system, water cooling heat exchanger 6 uses indirect water-cooling mode,
The water pipe of built-in more carbon steel materials, cold water flow in pipe, and high-temperature flue gas passes through outside pipe, can be quickly by the temperature of flue gas
It is down to 300 DEG C.The tracheae of more carbon steel materials, flue gas pass through outside tracheae built in air heat exchanger 7, are fresh cold sky in pipe
Gas further cools down flue gas, can be down to 200 DEG C or less.Fresh cold air is influenced by high-temperature flue gas, and temperature can rise to
70 DEG C, incinerator 2 and dual firing chamber 4 are introduced by air blower, while for material burning supplement fresh air, avoided as far as possible
The reduction of 4 temperature of incinerator 2 and dual firing chamber, and then save the energy consumption of system.Dual firing chamber's temperature sensor, dual firing chamber's pressure sensing
Device, fire box temperature sensor, furnace pressure sensor, exhaust blower, overtemperature alarm valve and air blower are electrically connected to control system,
It is electric control field conventional design, details are not described herein as the specific composition of control system.
It will illustrate to be enriched with using the application by taking the safe incineration disposal of heavy metal super-enriched plant such as Grain Production of Amaranthus as an example below
The detailed process of the safe incineration disposal system processing Grain Production of Amaranthus of plant:
The plant heap density of required disposition is big, is unfavorable for feeding；Occupancy furnace volume is big, and combustion characteristics is poor.Therefore elder generation is needed
Material is crushed, to reduce volume (5~8mm of broken material), while convenient for granulation, transport, storage etc..It carries out later
It is granulated that (granular size is), can improve after granulation material combustion characteristics, increase calorific value, increase fuel density,
Convenient for feeding, pack storage.
Raw material after being granulated is similar to biological particles, is characterized in that containing heavy metal element.Therefore need pair
Tail gas is reasonably administered.Specific processing is as follows:
(1) waste is put into the combustion chamber of incinerator 2 by hopper by lifting material feeding mechanism 1, and waste is in burner 3
It is high in furnace according to burning three T principles (temperature, time, vortex) under the effect of air agitation provided by combustion-supporting and air blower
Warm pyrolysis and combustion, for ignition temperature at 800~1000 DEG C or so, entire combustion process is in negative pressure state.Material reduction rate after burning
90% or more.
Specifically, lifting material feeding mechanism 1 includes the elements such as hopper, motor, electric pushrod, chain, pass through electric pushrod band
Dynamic chain lifting realizes the automatic feed of material by hopper from the top of bottom promotion, and has automatic weighing function.
(2) high-temperature flue gas after burning enters dual firing chamber 4, and dual firing chamber 4 is that the inner wall of a vertical type cylinder shape is lined with fire resisting
The stove of material.Furnace body uses cyclone type structure, and oxygenating air guarantees organic matter sufficiently gas using tangential supply, enhancing disturbance
Change.Furnace body zoneofoxidation is not decomposed in high-temperature flue gas completely since the supplement of oxidation air is so that zoneofoxidation is in oxygen-enriched state
Organic substance further burns under oxygen-enriched state, and guarantees the longer residence time, so that debirs herein can be complete
It is complete to decompose.
(3) flue-gas temperature come out through dual firing chamber 4 is up to 1100 DEG C, need to carry out flue gas cooling, using water cooling with air-cooled double
It cools down again, temperature is at 200 DEG C or less after the water cooled heat exchanger 6 of high-temperature flue gas is cooled down with air heat exchanger 7；Fresh air into
Temperature can be increased to 60~70 DEG C after entering air heat exchanger 6, be used for incinerator 2 with dual firing chamber 4 by air blower, effective to save
Energy consumption.
(4) flue gas after cooling down removes large dust particle by cyclone dust collectors 8, effectively alleviates bag filter 10
Workload.There is overtemperature alarm valve 9 between cyclone dust collectors 8 and bag filter 10, it is excessively high to cloth bag to prevent flue-gas temperature
The filter bag of deduster damages.Flue gas enters the progress high efficiency filter of bag filter 10 later.
(5) flue gas after dedusting enters spray scrubber 12, and it is harmful that the solution by spraying specific outfit absorbs removal
Gas and little particle dust reach nontoxic, smokeless, harmless, odorless effect, and through foam removal, treated that gas up to standard introduces chimney 13
It is discharged into atmosphere.
(6) whole system is equipped with dump system simultaneously, once incinerator system breaks down, pneumatic switching valve moment
Movement, flue gas guarantee system safety operation by dump system evacuation.
(7) lime-ash that incineration system generates, the mainly oxide of metal belong to dangerous waste class, by dangerous waste after unified collection
Producer is focused on；The waste water that incineration system generates, the predominantly recirculated water of system cooling water and circulatory pool, through settling
Waste pipe network system processing is periodically into after processing；Qualified discharge can be achieved in the exhaust gas that incineration system generates completely after processing.
Above-described embodiment is only to clearly demonstrate examples made by the present invention, rather than the restriction to embodiment.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.Here without can not be also exhaustive to all embodiments.And the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (10)
1. a kind of safe incineration disposal system of super enriching plant, it is characterised in that: including incinerator, dual firing chamber, a heat exchanger,
Secondary heat exchanger, disposable dust remover, secondary filter, exhaust blower and scrubbing tower；The side wall of the incinerator is equipped with burner,
The exhanst gas outlet of the incinerator is in turn connected to the dual firing chamber by pipeline, a heat exchanger, secondary heat exchanger, once removes
Dirt device, secondary filter, exhaust blower and scrubbing tower.
2. disposal system according to claim 1, it is characterised in that: the incinerator be equipped with fire box temperature sensor and
Furnace pressure sensor, inside are equipped with reciprocal grate.
3. disposal system according to claim 1, it is characterised in that: a heat exchanger uses water cooling heat exchanger, institute
Secondary heat exchanger is stated using air heat exchanger, the hot-air after the air heat exchanger heating introduces the incinerator by air blower
And dual firing chamber.
4. disposal system according to claim 1, it is characterised in that: the dual firing chamber is fired using cyclone type two
Room, it is interior to be equipped with dual firing chamber's temperature sensor and dual firing chamber's pressure sensor.
5. disposal system according to claim 1, it is characterised in that: the disposable dust remover uses cyclone dust collectors, institute
Secondary filter is stated using bag filter.
6. disposal system according to claim 1, it is characterised in that: connect the disposable dust remover and secondary filter
Pipeline is equipped with overtemperature alarm valve.
7. disposal system according to claim 1, it is characterised in that: the scrubbing tower is using three layers of washing, two layers of demisting
Multilayered structure.
8. disposal system according to claim 1, it is characterised in that: the scrubbing tower is connected with chimney.
9. a kind of safe incineration disposal method of super enriching plant, which comprises the steps of:
By the broken granulation of super enriching plant；
By high temperature pyrolysis burning in the super enriching plant investment incinerator after broken granulation, ignition temperature is controlled in 800-1000
℃；
High-temperature flue gas after burning enters dual firing chamber, and the organic substance not decomposed completely in high-temperature flue gas is under oxygen-enriched state into one
Step burning；
The high-temperature flue gas come out through dual firing chamber drops to 200 DEG C or less by water cooling heat exchanger and the dual cooling of air heat exchanger；
Flue gas after cooling enters cyclone dust collectors and bag filter, carries out final dusting；
Flue gas after final dusting enters spray scrubber, removes inertia pernicious gas and little particle powder by spray scrubber
Dirt, eventually by chimney qualified discharge.
10. method of disposal according to claim 9, which comprises the steps of: fresh air is changed by air
Hot device heat exchange heating introduces incinerator and dual firing chamber by air blower.
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Cited By (1)
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| CN111019679A (en) * | 2019-12-13 | 2020-04-17 | 中山大学 | Device for recovering energy substances from hyper-enriched plants and application thereof |
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