CN107830527A - Waste treatment equipment and waste treatment method - Google Patents
Waste treatment equipment and waste treatment method Download PDFInfo
- Publication number
- CN107830527A CN107830527A CN201711265173.6A CN201711265173A CN107830527A CN 107830527 A CN107830527 A CN 107830527A CN 201711265173 A CN201711265173 A CN 201711265173A CN 107830527 A CN107830527 A CN 107830527A
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- China
- Prior art keywords
- waste
- melting furnace
- treatment equipment
- burning
- fusing department
- Prior art date
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- 239000002699 waste material Substances 0.000 title claims abstract description 270
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002844 melting Methods 0.000 claims abstract description 91
- 230000008018 melting Effects 0.000 claims abstract description 91
- 239000002956 ash Substances 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 6
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 5
- 239000010881 fly ash Substances 0.000 claims abstract description 4
- 239000003440 toxic substance Substances 0.000 claims abstract description 4
- 238000002485 combustion reaction Methods 0.000 claims description 36
- 239000007789 gas Substances 0.000 claims description 35
- 239000002918 waste heat Substances 0.000 claims description 25
- 238000011084 recovery Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 241000273930 Brevoortia tyrannus Species 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 230000001473 noxious effect Effects 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 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 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 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
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- 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
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/80—Shredding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- 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
- F23J2215/10—Nitrogen; Compounds thereof
-
- 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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention provides a kind of waste treatment equipment and waste treatment method, it is related to waste processing arts, solves the problems, such as to cause environmental pollution when waste treatment equipment discharge incineration ashes in the prior art be present.The device includes waste pretreatment unit, waste melting furnace, ash collecting device and gas cleaning plant, waste can enter waste melting furnace after waste pretreatment unit and be burned in waste melting furnace, waste melting furnace includes melting slag-drip opening and outlet port, waste burned in waste melting furnace caused by waste residue be heated into molten state in the bottom of waste melting furnace, caused bioxin can change into non-toxic substance after being burnt in waste melting furnace after waste burns in waste melting furnace, ash collecting device can collect the part or all of flying dust from outlet port discharge and by fly ash carry to waste melting furnace, gas cleaning plant can purify the gas from outlet port discharge.The present invention is used to cause environmental pollution when reducing discharge incineration ashes.
Description
Technical field
The present invention relates to waste processing arts, more particularly, to a kind of waste treatment equipment and waste treatment method.
Background technology
Traditional Waste disposal is handled by burning mode, and incineration technology is a kind of high-temperature heat treatment technology, i.e.,
Oxidizing fire reaction is carried out in incinerator with a certain amount of excess air and processed debirs, and harmful in waste has
Noxious material aoxidizes, is pyrolyzed and is destroyed at high temperature, is that a kind of can realize innoxious waste, minimizing, the place of recycling simultaneously
Reason technology.But incinerating residue can be produced in burning process, including flying dust caused by incinerating waste material, residue, oxynitrides and
Sour gas, includes noxious material bioxin particle in flying dust, comprising materials such as heavy metals in residue, if by above-mentioned burning
Product be exhausted directly in air, it will cause the pollution of air.
Applicants have discovered that at least there is following technical problem in prior art：
The problem of environmental pollution be present when discharging incineration ashes in existing waste treatment equipment.
The content of the invention
It is an object of the invention to provide a kind of waste treatment equipment and waste treatment method, to solve to deposit in the prior art
Waste treatment equipment discharge incineration ashes when cause the technical problem of environmental pollution.Many technical schemes provided by the invention
In many technique effects elaboration as detailed below that can be generated of optimal technical scheme.
To achieve the above object, the invention provides following technical scheme：
A kind of waste treatment equipment provided by the invention, including waste pretreatment unit, waste melting furnace, flying dust collect dress
Put and gas cleaning plant, wherein,
The waste pretreatment unit is connected with the waste melting furnace, and waste is after the waste pretreatment unit
The waste melting furnace can be entered and burned in the waste melting furnace, the waste melting furnace is collected with the flying dust and filled
Put and the gas cleaning plant is connected；
The waste melting furnace includes melting slag-drip opening and outlet port, waste burn production in the waste melting furnace
Raw waste residue be heated into the bottom of the waste melting furnace after molten state can be discharged from the melting slag-drip opening to be formed it is harmless solid
State material, caused bioxin can change into after being burnt in the waste melting furnace after waste burns in the waste melting furnace
Non-toxic substance, the ash collecting device can collect the part or all of flying dust from outlet port discharge and by flying dusts
Being delivered in the waste melting furnace makes flying dust be heated into molten state, the gas cleaning plant energy in the waste melting furnace
Purify from the gas and purified gas of outlet port discharge and be discharged into air.
Preferably, the waste treatment equipment also includes waste-heat recovery device, the waste-heat recovery device and the waste gas
Outlet is connected；The waste-heat recovery device is waste heat boiler.
Preferably, the waste melting furnace includes burning fusing department, combustion section and the connection burning fusing department and described
The cone connection of combustion section, burning fusing department, the cone connection and the combustion section are set gradually from top to bottom,
The bottom of the burning fusing department is provided with the melting slag-drip opening, the top of the combustion section is provided with the waste gas row
Outlet；
The burning fusing department also includes incineration of waste portion and waste residue fusing department, and the incineration of waste portion is arranged on described useless
The top of the slag fusing department and incineration of waste portion is connected with the waste residue fusing department, waste burns in the incineration of waste portion,
Waste residue is heated in the waste residue fusing department.
Preferably, the burning fusing department and the combustion section are cylinder, and the combustion section melts with described burn
Portion's diameter than scope be 1.5~3；Main heating source is evenly arranged with the side of the burning fusing department bottom, it is described
Main heating source is the one or more of burner or plasma generator；Pair is uniformly provided with the side wall of the combustion section
Heating source, the secondary heating source are the one or more of burner or plasma generator.
Preferably, the gasifying agent of auxiliary combustion is connected with the incineration of waste portion and the combustion section, waste is in anoxic
In the environment of burning, bioxin burns under oxygen-enriched environment.
Preferably, the waste melting furnace is made of heat resisting steel material；On the madial wall of the waste melting furnace along from
Direction from inside to outside is disposed with heat insulation layer, refractory layer and high-temperature corrosion resistance layer.
Preferably, the waste pretreatment unit includes waste bunker and disintegrating machine, and waste to be broken is by described broken
It is delivered to the waste bunker after the processing of broken machine, the waste in the waste bunker melts by screw(-type) feeder into the waste
Melt in stove；Waste length after broken is less than 100mm.
Preferably, the gas cleaning plant includes removing acid tower and denitrification apparatus, the waste-heat recovery device, the deacidification
Tower, the ash collecting device and the denitrification apparatus are set gradually；
The waste treatment equipment also includes air-introduced machine, and the air-introduced machine drives gas in the denitrification apparatus from chimney
Discharge.
A kind of waste treatment method of waste treatment equipment processing waste described in utilization, comprises the following steps：
S1, pretreatment waste；
S2, waste are delivered in the waste melting furnace by the screw(-type) feeder；
S3, waste burn in the waste melting furnace；
S4, caused molten state waste residue are from the melting slag-drip opening discharge, from the flying dust quilt of outlet port discharge
The ash collecting device is delivered to the burning fusing department after collecting, described in the gas process from outlet port discharge
Air is discharged into after gas cleaning plant.
Preferably, step S4 is further comprising the steps of：
S41, from it is described melting slag-drip opening discharge waste residue form vitreum after waste residue water is cold, from the waste gas discharge
Mouthful discharge flying dust successively by the waste-heat recovery device, it is described remove acid tower after enter the ash collecting device in；From institute
State outlet port discharge gas successively by the waste-heat recovery device, it is described except acid tower, the ash collecting device with
And the denitrification apparatus and discharged under the driving of the air-introduced machine from chimney.
The present invention provides a kind of waste treatment equipment and waste treatment method, to solve present in prior art at waste
The technical problem of environmental pollution is caused during reason device discharge incineration ashes, waste residue can be heated into by waste treatment equipment of the invention
The waste residue chilling of molten state and molten state into vitreum, avoid heavy metal from being overflowed from waste residue, bioxin can be resolved into it is nontoxic
Property material, flying dust can be collected and be delivered in waste melting furnace, can will be discharged into air after waste gas purification, when reducing incinerating waste material
The pollution to caused by air；Waste-heat recovery device can be used to reclaim heat, reduce the waste of energy；The structure of waste melting furnace with
Thermal source distribution can be melted in the case that, bioxin is decomposed in waste residue saves the energy；Waste oxygen not foot condition
Lower Combustion Energy reduces the generation of bioxin, and the generation of bioxin is reduced from the mode of burning, reduces and decomposes what bioxin needed
Heat；Bioxin can be decomposed fully under conditions of oxygen-enriched, avoid bioxin from being discharged into air from combustion system；Except acid tower and take off
Nitre device is respectively intended to remove the sour gas and oxynitrides in gas.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of waste treatment equipment；
Fig. 2 is the structural representation of waste melting furnace.
1- wastes pretreatment unit in figure；110- waste bunkers；120- disintegrating machines；2- waste melting furnaces；21- melts deslagging
Mouthful；22- outlet ports；23- burns fusing department；231- incinerations of waste portion；232- waste residue fusing departments；24- combustion section；25- is bored
Shape connecting portion；26- heat insulation layers；27- refractory layers；28- high-temperature corrosion resistance layers；3- ash collecting devices；4- waste-heat recovery devices；5-
Main heating source；6- pair heating sources；7- screw(-type) feeders；8- removes acid tower；9- denitrification apparatus；10- air-introduced machines；11- waste residues pond；12-
Chimney.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belong to the scope that the present invention is protected.
The invention provides a kind of waste treatment equipment, including waste pretreatment unit 1, waste melting furnace 2, flying dust to collect
Device 3 and gas cleaning plant, wherein, waste pretreatment unit 1 is connected with waste melting furnace 2, and waste is located in advance by waste
Waste melting furnace 2 and the burning in the waste melting furnace 2 can be entered after device 1 by managing, waste melting furnace 2 with ash collecting device 3
And gas cleaning plant is connected；
Waste melting furnace 2 includes melting slag-drip opening 21 and outlet port 22, and waste is burned in waste melting furnace 2 and produced
Waste residue be heated into the bottom of waste melting furnace 2 after molten state and can form harmless solid matter from the melting discharge of slag-drip opening 21,
Caused bioxin can change into non-toxic substance after being burnt in waste melting furnace 2 after waste burns in waste melting furnace 2, fly
Grey collection device 3 can collect the part or all of flying dust discharged from outlet port 22 and by fly ash carry to waste melting furnace 2
Flying dust is inside set to be heated into molten state in waste melting furnace 2, gas cleaning plant can purify the gas discharged from outlet port 22
Body and purified gas is discharged into air.The noxious materials such as heavy metal are remained in waste residue, are discharged from melting slag-drip opening 21 useless
Slag forms solid matter by cooling treatment, and solid matter can be vitreum, and the noxious materials such as heavy metal are solidificated in into glass
In vivo, poisonous substance leaches extremely low, reduces pollution of the heavy metal to environment, meanwhile, vitreum can be handled as household waste or
As roadbed material, the amount of landfill of waste is substantially reduced；Bioxin can change into non-toxic thing after being burnt in waste melting furnace 2
Matter, dioxin emission is avoided to be damaged into air to the living environment of the mankind；Ash collecting device 3 can be collected to be arranged from waste gas
The part or all of flying dusts of the discharge of outlet 22 and will make in fly ash carry to waste melting furnace 2 flying dust in the waste melting furnace 2 by
Heat is finally also solidificated in vitreum into molten state, and flying dust belongs to hazardous waste, and environmental pollution can be caused by directly discharging air,
Apparatus of the present invention reduce the discharge rate of flying dust, pollution of the flying dust to environment when reducing incinerating waste material；Gas cleaning plant can purify
The gas and purified gas discharged from outlet port 22 are discharged into air, reduce sour gas or oxynitrides etc. to ring
Border is polluted, and solves the technical problem that environmental pollution is caused during the discharge incineration ashes of waste treatment equipment present in prior art,
Pollution on the environment when apparatus of the present invention reduce incinerating waste material.
As optional embodiment, waste treatment equipment also includes waste-heat recovery device 4, and waste-heat recovery device 4 is with giving up
Gas outlet 22 is connected；For waste-heat recovery device 4 to reclaim heat, waste-heat recovery device 4 is waste heat boiler, flue-gas temperature from
1100 DEG C are reduced to about 550 DEG C, and waste heat boiler can generate steam and the external heat supply of hot water.
As optional embodiment, waste melting furnace 2 includes burning fusing department 23, combustion section 24 and connection burning melting
Portion 23 and the cone connection 25 of combustion section 24, burn fusing department 23, cone connection 25 and combustion section 24 from top to bottom successively
Set, the bottom for burning fusing department 23 is provided with melting slag-drip opening 21, the top of combustion section 24 is provided with outlet port
22, waste burns in burning fusing department 23, and partial waste can also burn in cone connection 25, and bioxin is in combustion section 24
Interior burning；Burning fusing department 23 also includes incineration of waste portion 231 and waste residue fusing department 232, and incineration of waste portion 231 is arranged on waste residue
The top and incineration of waste portion 231 of fusing department 232 are connected with waste residue fusing department 232, and waste burns in incineration of waste portion 231, given up
Slag is heated in waste residue fusing department 232；It is cylinder to burn fusing department 23 and combustion section 24, and combustion section 24 is with burning fusing department 23
Diameter than scope be 1.5~3；Main heating source 5, main heating source are evenly arranged with the side for burning the bottom of fusing department 23
5 be the one or more of burner or plasma generator；Secondary heating source 6 is uniformly provided with the side wall of combustion section 24,
Secondary heating source 6 is the one or more of burner or plasma generator.
Waste residue decomposes the temperature needed into not less than 1400 DEG C , bioxin of the temperature that molten condition needs and is not less than 1100
DEG C, because the temperature that waste residue needs into molten condition is high, when the diameter of burning fusing department 23 is less than 24 diameter of combustion section, i.e.,
The interior zone hour of fusing department 23 is burned, the heat burned in fusing department 23 can be reduced and scattered and disappeared, is ensured needed for waste residue melting
Temperature；For the temperature of the burning of waste at 700 DEG C -900 DEG C, the waste into waste melting furnace 2 is located at burning fusing department 23
Top, i.e., burnt in incineration of waste portion 231, waste residue concentrates on the bottom for burning fusing department 23, i.e., in the quilt of waste residue fusing department 232
Heating, and the temperature of waste residue melting is more than the temperature of trash burning, in order to make full use of heat, so main heating source 5 should be located at
On the side for burning the bottom of fusing department 23, it can be located on the side of waste residue fusing department 232；The heat that bioxin decomposes can
With from heat caused by trash burning, while secondary heating source 6 can also burn for bioxin and provide heat.
As optional embodiment, the gasifying agent of auxiliary combustion is connected with incineration of waste portion 231 and combustion section 24, is given up
Thing burns in the environment of anoxic, bioxin burns under oxygen-enriched environment, and the gasifying agent that incineration of waste portion 231 is passed through is not fill
Foot, because when waste is burning in the case of oxygen-deficient, the production of trash burning Shi bioxin can be effectively controlled, this
When, incineration temperature is controlled at 700 DEG C -900 DEG C, and the generation of bioxin is reduced from combustion system, is reduced and is decomposed bioxin when institute
The heat needed；Combustion section 24 is passed through enough gasifying agents, because bioxin Combustion Energy under oxygen-enriched environment sufficiently decomposes,
It is avoided that bioxin is discharged into air.
As optional embodiment, waste melting furnace 2 is made of heat resisting steel material；The madial wall of waste melting furnace 2
The direction of upper edge from inside to outside is disposed with heat insulation layer 26, refractory layer 27 and high-temperature corrosion resistance layer 28.
As optional embodiment, waste pretreatment unit 1 includes waste bunker 110 and disintegrating machine 120, to be broken
Waste is delivered to waste bunker 110 after the processing of disintegrating machine 120, and waste bunker 110 can be connected with feed valve, waste bunker
Waste in 110 is by expecting that valve enters in waste melting furnace 2 into screw(-type) feeder 7 and by screw(-type) feeder 7；Pretreatment is useless
Thing, first first by waste separation, it is necessary to which broken waste, which is put into disintegrating machine 120, carries out break process, the purpose of break process is
For the ease of the burning of rubbish, the waste length after crushing is less than 100mm, the waste delivery after crushing to waste bunker 110, point
The waste that break process need not be carried out after class is put into waste bunker 110.
As optional embodiment, gas cleaning plant includes removing acid tower 8 and denitrification apparatus 9, waste-heat recovery device 4,
Except acid tower 8, ash collecting device 3 and denitrification apparatus 9 are set gradually；Except acid tower 8 be in order to remove the sour gas in waste gas, and
EGT is reduced to less than 250 DEG C, out of stock device 9 is to remove denitrification；Waste treatment equipment also includes air inducing
Machine 10, air-introduced machine 10 drive the gas in denitrification apparatus 9 to be discharged from chimney 12.
A kind of waste treatment method that waste is handled using waste treatment equipment, is comprised the following steps：
S1, pretreatment waste；
S2, waste are delivered in waste melting furnace 2 by screw(-type) feeder 7；
S3, waste burn in waste melting furnace 2；
S4, caused molten state waste residue are discharged from melting slag-drip opening 21, and the flying dust discharged from outlet port 22 is by flying dust
Collection device 3 is delivered to after collecting burns fusing department 23, and the gas discharged from outlet port 22 is after gas cleaning plant
It is discharged into air；
Step S4 is further comprising the steps of：
S41, from melting slag-drip opening 21 discharge waste residue form vitreum after the water cooling of waste residue pond 11, from outlet port 22
The flying dust of discharge enters in ash collecting device 3 after waste-heat recovery device 4, except acid tower 8 successively；From the row of outlet port 22
The gas gone out is successively by waste-heat recovery device 4, except acid tower 8, ash collecting device 3 and denitrification apparatus 9 and in air-introduced machine 10
Driving under discharged from chimney 12.
In step S1, waste is pre-processed, first by waste separation, it is necessary to which broken waste is put into disintegrating machine 120 is broken
Broken processing, to waste bunker 110, the waste that break process need not be carried out after classification is put into the waste delivery after then crushing
Waste bunker 110；In step S41, waste residue under molten condition enters in waste residue pond 11 be chilled to normal temperature after turn into vitreum；
In step S3, waste burns in the melting furnace 2, include the combustion process of waste, the process for being heated to melting of waste residue and
The process of bioxin combustion decomposition.
A kind of waste treatment equipment provided by the invention and waste treatment method, environment is caused when reducing discharge incineration ashes
Pollution.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of waste treatment equipment, it is characterised in that received including waste pretreatment unit (1), waste melting furnace (2), flying dust
Acquisition means (3) and gas cleaning plant, wherein,
The waste pretreatment unit (1) is connected with the waste melting furnace (2), and waste passes through the waste pretreatment unit
(1) the waste melting furnace (2) can be entered after and burned in the waste melting furnace (2), the waste melting furnace (2) with
The ash collecting device (3) and the gas cleaning plant are connected；
The waste melting furnace (2) includes melting slag-drip opening (21) and outlet port (22), and waste is in the waste melting furnace
(2) waste residue caused by being burned in can be from the melting slag-drip opening after molten state is heated into the bottom of the waste melting furnace (2)
(21) discharge forms harmless solid matter, and caused bioxin is described useless after waste burns in the waste melting furnace (2)
Non-toxic substance can be changed into after being burnt in thing melting furnace (2), the ash collecting device (3) can be collected from the outlet port
(22) the part or all of flying dust of discharge and by fly ash carry to making flying dust be melted in the waste in the waste melting furnace (2)
It is heated into molten state in stove (2), the gas cleaning plant can be purified from the gas of the outlet port (22) discharge and net
Gas after change is discharged into air.
2. waste treatment equipment according to claim 1, it is characterised in that the waste treatment equipment also returns including waste heat
Receiving apparatus (4), the waste-heat recovery device (4) are connected with the outlet port (22)；The waste-heat recovery device (4) is
Waste heat boiler.
3. waste treatment equipment according to claim 1, it is characterised in that the waste melting furnace (2), which includes burning, melts
Melt portion (23), combustion section (24) and the cone connection (25) of the connection burning fusing department (23) and the combustion section (24),
Burning fusing department (23), the cone connection (25) and the combustion section (24) are set gradually from top to bottom, close to institute
State and burn the bottom of fusing department (23) and be provided with the melting slag-drip opening (21), the top of the combustion section (24) is provided with described
Outlet port (22)；
The burning fusing department (23) also includes incineration of waste portion (231) and waste residue fusing department (232), the incineration of waste portion
(231) top of the waste residue fusing department (232) and the incineration of waste portion (231) and the waste residue fusing department are arranged on
(232) connect, waste burn in the incineration of waste portion (231), waste residue is heated in the waste residue fusing department (232).
4. waste treatment equipment according to claim 3, it is characterised in that the burning fusing department (23) and the burning
Portion (24) is cylinder, the combustion section (24) with it is described burning fusing department (23) diameter than scope be 1.5~3；It is close
Be evenly arranged with main heating source (5) on the side for burning fusing department (23) bottom, the main heating source (5) be burner or
The one or more of plasma generator；Secondary heating source (6) is uniformly provided with the side wall of the combustion section (24), it is described
Secondary heating source (6) is the one or more of burner or plasma generator.
5. waste treatment equipment according to claim 4, it is characterised in that the incineration of waste portion (231) and the combustion
The gasifying agent of auxiliary combustion is connected with burning portion (24), waste burns in the environment of anoxic, bioxin is under oxygen-enriched environment
Burning.
6. waste treatment equipment according to claim 1, it is characterised in that the waste melting furnace (2) uses heat resisting steel
Material is made；On the madial wall of the waste melting furnace (2) heat insulation layer (26), heat-resisting is disposed with along direction from inside to outside
Layer (27) and high-temperature corrosion resistance layer (28).
7. waste treatment equipment according to claim 1, it is characterised in that the waste pretreatment unit (1) includes useless
Thing bunker (110) and disintegrating machine (120), waste to be broken are delivered to the waste after the disintegrating machine (120) processing
Bunker (110), the waste in the waste bunker (110) enter in the waste melting furnace (2) by screw(-type) feeder (7)；
Waste length after broken is less than 100mm.
8. waste treatment equipment according to claim 1, it is characterised in that the gas cleaning plant includes removing acid tower
(8) and denitrification apparatus (9), the waste-heat recovery device (4), described except acid tower (8), the ash collecting device (3) and described
Denitrification apparatus (9) is set gradually；
The waste treatment equipment also includes air-introduced machine (10), and the air-introduced machine (10) drives the gas in the denitrification apparatus (9)
Body is discharged from chimney (12).
9. a kind of waste treatment equipment using any one of claim 1-8 handles the waste treatment method of waste, its
It is characterised by, comprises the following steps：
S1, pretreatment waste；
S2, waste are delivered in the waste melting furnace (2) by the screw(-type) feeder (7)；
S3, waste burn in the waste melting furnace (2)；
S4, caused molten state waste residue are from melting slag-drip opening (21) discharge, from flying for the outlet port (22) discharge
Ash is delivered to the burning fusing department (23) after being collected by the ash collecting device (3), arranged from the outlet port (22)
The gas gone out is discharged into air after the gas cleaning plant.
10. waste treatment method according to claim 9, it is characterised in that step S4 is further comprising the steps of：
S41, from it is described melting slag-drip opening (21) discharge waste residue form vitreum after waste residue pond (11) water cooling, from the waste gas
Outlet (22) discharge flying dust successively by the waste-heat recovery device (4), it is described remove acid tower (8) after enter the flying dust receipts
In acquisition means (3)；From the gas of the outlet port (22) discharge successively by the waste-heat recovery device (4), described remove
Acid tower (8), the ash collecting device (3) and the denitrification apparatus (9) and under the driving of the air-introduced machine (10) from cigarette
Discharged in chimney (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711265173.6A CN107830527A (en) | 2017-12-04 | 2017-12-04 | Waste treatment equipment and waste treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711265173.6A CN107830527A (en) | 2017-12-04 | 2017-12-04 | Waste treatment equipment and waste treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830527A true CN107830527A (en) | 2018-03-23 |
Family
ID=61641762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711265173.6A Pending CN107830527A (en) | 2017-12-04 | 2017-12-04 | Waste treatment equipment and waste treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830527A (en) |
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| CN108613199A (en) * | 2018-07-05 | 2018-10-02 | 上海环境工程设计研究院有限公司 | A kind of dangerous waste incineration melting integrated apparatus |
| CN109868367A (en) * | 2019-04-09 | 2019-06-11 | 大连易舜绿色科技有限公司 | A kind of system and extracting method for extracting noble metal in discarded ternary catalyzing unit |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
| CN113798307A (en) * | 2021-09-15 | 2021-12-17 | 浙江伊诺环保科技股份有限公司 | Fly ash high-temperature melting recycling treatment process |
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| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
| CN113798307A (en) * | 2021-09-15 | 2021-12-17 | 浙江伊诺环保科技股份有限公司 | Fly ash high-temperature melting recycling treatment process |
| CN113798307B (en) * | 2021-09-15 | 2022-08-23 | 浙江伊诺环保科技股份有限公司 | Treatment process for recycling fly ash through high-temperature melting |
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