CN108826318A - Domestic garbage treating system and life refuse processing method - Google Patents
Domestic garbage treating system and life refuse processing method Download PDFInfo
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- CN108826318A CN108826318A CN201810763719.9A CN201810763719A CN108826318A CN 108826318 A CN108826318 A CN 108826318A CN 201810763719 A CN201810763719 A CN 201810763719A CN 108826318 A CN108826318 A CN 108826318A
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention provides a kind of domestic garbage treating system and life refuse processing methods.The system includes pretreatment unit, incinerator, flue gas separation unit, flue gas purification device and plasma gasification cracking melting plant.The pretreating waste outlet of pretreatment unit is connected with the pretreating waste import of incinerator；The gas inlet of the gas-solid separator of the high-temperature flue gas outlet and flue gas separation unit of incinerator is connected；First waste gas outlet of gas-solid separator is connected with the first exhaust gas entrance of flue gas purification device；Plasma gasification cracking melting plant includes interconnected plasma gasification cracking melting furnace and molten slag discharge quenching apparatus, and the flying dust outlet of gas-solid separator and the first solid residue outlet of incinerator are connected with the plasma furnace solid waste feed inlet of plasma gasification cracking melting furnace.The gaseous effluent ingredient of generation cleans, and will not cause secondary pollution to atmosphere；The solid product of generation can be secondary use.
Description
Technical field
The present invention relates to field of garbage disposal, and relate more specifically at a kind of domestic garbage treating system and house refuse
Reason method.
Background technique
Since China's domestic waste is by the way of mixed collection, rubbish constituent is complicated, including kitchen waste material, modeling
Material, rubber, stationery, wood bamboo, fabric, glass, metal etc., the characteristics such as each component particle size, hardness, moisture content are different, such as food waste
Water content of matter is high, and light plastic is difficult to broken etc., leads to the increase of its processing difficulty.
Currently, the main processing ways of domestic rubbish have：(1) landfill method, the percolate and foul smell that this method generates
Seriously polluted, landfill area easily causes soil and groundwater to pollute；(2) incineration method, can generate in this method treatment process largely has
Evil gas, the flying dust for burning generation do not dispose properly, can cause environmental pollution and air pollution.In above-mentioned technology, to life
Rubbish living can not achieve harmless treatment, cannot be recycled to part house refuse, and will cause environmental pollution and sky
Gas pollution.
Therefore, it is necessary to a kind of domestic garbage treating systems and a kind of life refuse processing method, at least to be partially solved
Problems of the prior art.
Summary of the invention
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into
One step is described in detail.Summary of the invention is not meant to attempt to limit technical solution claimed
Key feature and essential features do not mean that the protection scope for attempting to determine technical solution claimed more.
In order at least be partially solved the above problem, according to an aspect of the invention, there is provided at a kind of house refuse
Reason system comprising：
Pretreatment unit, the pretreatment unit include house refuse import and pretreating waste outlet；
Incinerator, the incinerator include pretreating waste import, high-temperature flue gas outlet and the outlet of the first solid residue, institute
Pretreating waste import is stated to be connected with pretreating waste outlet；
Flue gas separation unit, the flue gas separation unit include gas-solid separator, the gas-solid separator include flue gas into
Mouth, flying dust outlet and the first waste gas outlet, the gas inlet are connected with the high-temperature flue gas outlet；
Flue gas purification device, the flue gas purification device include that the first exhaust gas entrance and gaseous effluent export, and described the
One exhaust gas entrance is connected with first waste gas outlet；And
Plasma gasification cracks melting plant, and plasma gasification cracking melting plant includes interconnected etc.
Gas ions gasification cracking melting furnace and molten slag discharge quenching apparatus, the plasma gasification cracking melting furnace include it is equal from
Daughter furnace solid waste feed inlet, the plasma furnace solid waste feed inlet is exported with the flying dust and first solid residue goes out
Mouth connection, the molten slag discharge quenching apparatus are connected to slag collector.
After domestic garbage treating system according to the present invention is to domestic rubbish disposal, on the one hand, the gaseous effluent of generation
Ingredient cleaning, secondary pollution will not be caused to atmosphere after discharge；On the other hand, the solid product volume of generation is smaller, more pacifies
Entirely, it can be secondary use, be truly realized " innoxious, minimizing, recycling ".
Optionally, the flue gas separation unit further includes air preheater, and the air preheater includes：
High-temperature flue gas entry, the high-temperature flue gas entry are connected with the high-temperature flue gas outlet；
Low-temperature flue gas outlet, the low-temperature flue gas outlet are connected with the gas inlet；
First cool air inlet, first cool air inlet is for being passed through cold air into the air preheater；With
And
Hot air outlet.
Optionally, the plasma gasification cracking melting furnace further includes reducibility gas outlet, and the incinerator includes
Reducibility gas entrance, the reducibility gas outlet are connected to the reducibility gas entrance.
Optionally, the pretreatment unit includes crusher and drying device, and the crusher includes house refuse import
It is exported with house refuse is crushed, the drying device includes crushing house refuse import and pretreating waste outlet, the crushing
House refuse outlet is connected with the crushing house refuse import.
Optionally, the drying device includes the first hot air inlet, and the plasma gasification cracking melting furnace includes
Second hot air inlet, first hot air inlet and second hot air inlet are connected to the hot air outlet.
Optionally, the drying device further includes the second cold-air vent, and the incinerator includes the second cool air inlet,
Second cold-air vent is connected to second cool air inlet.
Optionally, it is set between the plasma gasification cracking melting furnace and the gas-solid separator and the incinerator
Set solid resultant product collection device, the solid resultant product collection device includes the second solid waste feed inlet and the second solid waste discharge port, and described the
Two solid waste feed inlets are exported with the flying dust and first solid residue outlet is connected, the second solid waste discharge port and institute
Plasma furnace solid waste feed inlet is stated to be connected.
According to another aspect of the present invention, a kind of life refuse processing method is provided, is included the following steps：
House refuse is sent into pretreatment unit and carries out pre-treatment step, obtains pretreating waste；
The pretreating waste is sent into incinerator to burn, obtains high-temperature flue gas and the first solid residue；
The high-temperature flue gas is sent into gas-solid separator, obtains the first exhaust gas and flying dust；
First exhaust gas is sent into flue gas purification device, obtains the gaseous effluent for capableing of direct emission；And
First solid residue and the flying dust are sent into plasma gasification and crack melting furnace, obtains molten product,
The molten product is sent into molten slag discharge quenching apparatus and carries out quenching, obtains glassy particles.
When life refuse processing method processing house refuse according to the present invention, on the one hand, the gaseous effluent of generation
Ingredient cleaning, will not cause secondary pollution to atmosphere after discharge；On the other hand, the solid product volume of generation is smaller, safer,
It can be secondary use, be truly realized " innoxious, minimizing, recycling ".
Optionally, the life refuse processing method is further comprising the steps of：
The high-temperature flue gas and cold air are sent into air preheater, so that the high-temperature flue gas and the cold air are in institute
It states in air preheater and exchanges heat, obtain low-temperature flue gas and hot-air；And
The low-temperature flue gas is sent into the gas-solid separator, the hot-air is sent into the pretreatment unit and described
Plasma gasification cracks melting furnace.
Optionally, the life refuse processing method is further comprising the steps of：
The hot-air exchanges heat in the pretreatment unit, obtains the second cold air, by second cold air
It is sent into the incinerator.
Optionally, the flying dust and first solid residue are sent into solid resultant product collection device, the flying dust and described
First solid residue is sent into the plasma gasification cracking melting furnace after assembling in the solid resultant product collection device.
Optionally, generating in the plasma gasification cracking melting furnace has reducibility gas, by the reducibility gas
It is sent into the incinerator.
Optionally, the pre-treatment step includes：
The house refuse is sent into broken crusher machine, obtains broken house refuse；And
The broken house refuse is sent into the drying device drying, obtains pretreating waste.
Detailed description of the invention
Following drawings of the invention is incorporated herein as part of the present invention for the purpose of understanding the present invention.Shown in the drawings of this hair
Bright embodiment and its description, device used to explain the present invention and principle.In the accompanying drawings,
Fig. 1 is the structural schematic diagram according to the domestic garbage treating system of an embodiment of the invention.
Description of symbols：
110：House refuse 121：Drying device
122：Crusher 130：Incinerator
141：Gas-solid separator 142：Air preheater
143：Flue gas purification device 144：Air blower
145：Chimney 146：Solid resultant product collection device
151：Plasma gasification cracks melting furnace 152：Molten slag discharges quenching apparatus
153：Slag collector 160：Construction material
Q1：High-temperature flue gas Q2：Cold air
Q3：Hot-air Q4：Low-temperature flue gas
Q5：Second cold air Q6：Reducibility gas
Q7:First exhaust gas
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed structure will be proposed in following description, to illustrate the present invention.It is aobvious
So, execution of the invention is not limited to the specific details that the those skilled in the art are familiar with.Preferable reality of the invention
Example is applied to be described in detail as follows, however other than these detailed descriptions, the present invention can also have other embodiments, should not solve
It is interpreted as being confined to embodiments presented herein.
The cited such as ordinal number of " first " and " second " is only to identify in the present invention, without any other
Meaning, such as specific sequence etc..Moreover, for example, term " first component " itself does not imply that the presence of " second component ", art
Language " second component " does not imply that the presence of " first component " in itself.
Hereinafter, specific embodiments of the present invention are described in more detail with reference to the accompanying drawings, shown in the drawings of this hair
Bright representative embodiment is not to limit the present invention.
According to an aspect of the invention, there is provided a kind of domestic garbage treating system.As shown in Figure 1, the house refuse
Processing system 100 mainly includes pretreatment unit, incinerator 130, flue gas separation unit, flue gas purification device 143 and plasma
Body gasification cracking melting plant.The various pieces of domestic garbage treating system 100 according to the present invention are described more fully below.
Pretreatment unit includes house refuse import and pretreating waste outlet.House refuse 110 by house refuse into
Mouth is sent into pretreatment unit, to carry out for example dry pretreatment operation, by advance after pre-processing to house refuse
Handle garbage outlet discharge.As shown in Figure 1, pretreatment unit may include crusher 122 and drying device 121.
Crusher 122 may include above-mentioned house refuse import and crush house refuse outlet.Drying device 121 includes
House refuse import and above-mentioned pretreating waste outlet are crushed, house refuse outlet and the crushing house refuse import are crushed
It is connected.For example, the house refuses 110 such as native stone, glass, battery, metal for being collected into can be broken in crusher 122, with
After can be delivered to drying device 121 by tools such as belts, the garbage drying after sufficiently dry goes out from pretreating waste
Mouth discharge drying device 121.Drying temperature in drying device 121 can be about 300 DEG C.
Incinerator 130 includes pretreating waste import, high-temperature flue gas outlet and the outlet of the first solid residue.Incinerator 130
The pretreating waste outlet of pretreating waste import and drying device 121 be connected.Drying rubbish after drying device 121 is dry
Rubbish enters incinerator 130 from pretreating waste import, to carry out burning disposal.Incineration temperature in incinerator 130 can be
900-1000℃.Wherein, before garbage drying is put into incinerator 130, incinerator 300 can be preheated using burner 131
To 600 DEG C.Optionally, garbage drying can be thrown in incinerator 130 via feeder (not shown).Garbage drying is burning
It is burned in furnace 130, obtains high-temperature flue gas Q1 and the first solid product.Wherein, the temperature of high-temperature flue gas Q1 is about 800 DEG C；First
Solid product can be the incombustible substances such as metal and its oxide, coke, glass in biochemical rubbish.
Flue gas separation unit includes gas-solid separator 141.Gas-solid separator 141 includes gas inlet, flying dust outlet and the
One waste gas outlet.Wherein, the gas inlet of gas-solid separator 141 is connected with the high-temperature flue gas outlet of incinerator 130.Garbage drying
The high-temperature flue gas Q1 obtained after being incinerated can enter gas-solid separator 141 by gas inlet, in separating high-temp flue gas Q1
The first exhaust gas Q7 and flying dust.
Flue gas purification device 143 includes that the first exhaust gas entrance and gaseous effluent export.The first of flue gas purification device 143
Exhaust gas entrance is connected with the first waste gas outlet of gas-solid separator 141.First exhaust gas Q7 is sent into flue gas by the first exhaust gas entrance
Purification device 143.Flue gas purification device 143 carries out the processes such as desulphurization and denitration to the first exhaust gas Q7, obtains to atmospheric environment without dirt
Gaseous effluent dye, being capable of direct emission.Optionally, domestic garbage treating system 100 according to the present invention can also wrap
Include chimney 145.Chimney 145 is configured to the gaseous effluent outlet of connection flue gas purification device 143.Gaseous effluent can be via
Gaseous effluent outlet enters chimney 145, and is emitted into atmosphere by chimney 145.
Plasma gasification cracking melting plant includes interconnected plasma gasification cracking melting furnace 151 and liquid
Slag discharge quenching apparatus 152.It includes plasma furnace solid waste feed inlet that plasma gasification, which cracks melting furnace 151,.Plasma
First solid residue outlet of the outlet of the flying dust of body furnace solid waste feed inlet and gas-solid separator 141 and incinerator 130.By
This, the flying dust isolated in the first solid product and high-temperature flue gas Q1 that garbage drying obtains after being incinerated can pass through plasma
Body furnace solid waste feed inlet is sent into plasma gasification and cracks melting furnace 151, with the quilt in plasma gasification cracking melting furnace 151
Liquefaction melting.Plasma gasification cracks and is provided with plasma gun 154 in melting furnace 151, and plasma gun 154 can be etc.
Gas ions gasification cracking melting furnace 151 provides about 1600 DEG C of high temperature.
Plasma gasification under about 1400 DEG C, the plasma atmosphere of high reaction activity and low-oxygen environment cracks melting
In furnace 151, the combustible component in solid waste generates reducibility gas Q6, and non-combustible ingredient generates molten product.Reproducibility gas
Body Q6 can be CO, H2.For example, the organic matter in solid waste generates CO, H by gasification cracking2Equal reducibility gas；Metal oxygen
Compound is reduced generation metal simple-substance；The inorganic salts such as silicate generate the substances such as silica.Optionally, plasma gasification is split
Solving melting furnace 151 can also include that reducibility gas exports, and incinerator 130 may include reducibility gas entrance, reproducibility gas
Body outlet is connected to reducibility gas entrance.The reducibility gas Q6 generated in plasma gasification cracking melting furnace 151 can
It is admitted in incinerator 130, using as the auxiliary fuel in garbage drying burning process.Domestic rubbish disposal is improved as a result,
The energy utilization rate of system 100, realizes maximization of economic benefit.
It can be set between plasma gasification cracking melting furnace 151 and gas-solid separator 141 and incinerator 130 solid
Body product collector 146.Solid resultant product collection device 146 includes the second solid waste feed inlet and the second solid waste discharge port.Wherein, second
Solid waste feed inlet is connected with the first solid residue outlet of the outlet of the flying dust of gas-solid separator 141 and incinerator 130.Second is solid
Useless discharge port is connected with the plasma furnace solid waste feed inlet of plasma gasification cracking melting furnace 151.That is, to burn oneself to death
It burns the first solid residue of furnace 130 and the flying dust from gas-solid separator 141 enters solid via the second solid waste feed inlet first
Product collector 146 then enters plasma gasification cracking melting furnace 151 from the second solid waste discharge port.By the way that solid is arranged
Product collector 146 can collect the solid waste from incinerator 130 and gas-solid separator 141, to concentrate to plasma
Material is put into gasification cracking melting furnace 151.
Further, the molten product obtained is admitted in molten slag discharge quenching apparatus 152 and carries out quenching, with
Form the glassy particles of safety.Molten slag discharge quenching apparatus 152 is connected to slag collector 153, to collect glassy state
Particle.Glassy particles can be used as construction material 160 after detecting safety and carry out secondary use.
After domestic garbage treating system 100 according to the present invention is to the processing of house refuse 110, on the one hand, the gas of generation
The ingredient of emission cleans, and will not cause secondary pollution to atmosphere after discharge；On the other hand, the solid product volume of generation is more
It is small, safer, it can be secondary use, be truly realized " innoxious, minimizing, recycling ".
Optionally, flue gas separation unit can also include air preheater 142.Air preheater 142 may include high temperature
Smoke inlet, low-temperature flue gas outlet, the first cool air inlet and hot air outlet.Wherein, high-temperature flue gas entry and incinerator 130
High-temperature flue gas outlet be connected, low-temperature flue gas outlet is connected with the gas inlet of gas-solid separator 141.That is, air is pre-
Hot device 142 can be set between incinerator 130 and gas-solid separator 141.Further, the first cool air inlet is used for sky
Cold air Q2 is passed through in air preheater 142.For example, as shown in Figure 1, in the shown embodiment, cold air Q2 can pass through drum
Blower 144 is blasted in air preheater 142.By the way that air preheater 142 is arranged, the height from incinerator 130 can be made
Warm flue gas Q1 carries out heat with cold air Q2 and exchanges, so that the waste heat that cold air Q2 absorbs high-temperature flue gas Q1 becomes hot-air Q3,
High-temperature flue gas Q1 is made to become low-temperature flue gas Q4 simultaneously.
Further, drying device 121 may include the first hot air inlet, and plasma gasification cracks melting furnace 151
Including the second hot air inlet.The hot-air of first hot air inlet and the second hot air inlet with air preheater 142 goes out
Mouth connection.Specifically, a part of in the hot-air Q3 from air preheater 142 can be delivered to drying device 121, with for
The dry house refuse 110 of drying device 121 provides heat；Another part can be delivered to plasma gasification cracking melting furnace
151, a small amount of air required for melting cracks is carried out to provide plasma gasification cracking melting furnace 151.Thus, it is possible to effectively
Ground improves the systematic heat utilization rate of domestic garbage treating system 100, reduces operating cost.
Optionally, drying device 121 may include the second cold-air vent, and incinerator 130 may include the second cold air
Entrance, the second cold-air vent are connected to the second cool air inlet.Hot-air Q3 in drying device 121 is by dry life rubbish
The second cold air Q5, the second cold air Q5 is obtained after rubbish 110 to enter incinerator 130 via the second cool air inlet, at
For the combustion air of incinerator 130.Thus, it is possible to which the operating cost of domestic garbage treating system 100 is effectively reduced, the energy is improved
Utilization rate.
According to the another aspect of invention, a kind of life refuse processing method is additionally provided, following steps are specifically included：
House refuse 110 is sent into pretreatment unit and carries out pre-treatment step, obtains pretreating waste；
Pretreating waste feeding incinerator 130 is burned, high-temperature flue gas Q1 and the first solid residue are obtained；
High-temperature flue gas Q1 is sent into gas-solid separator 141, obtains the first exhaust gas Q7 and flying dust；
First exhaust gas Q7 is sent into flue gas purification device 143, obtains the gaseous effluent for capableing of direct emission；And
First solid residue and flying dust are sent into plasma gasification and crack melting furnace 151, molten product is obtained, will melt
Product is sent into molten slag discharge quenching apparatus 152 and carries out quenching, obtains glassy particles.
When handling house refuse 110 using life refuse processing method according to the present invention, on the one hand, the gas of generation is arranged
The ingredient cleaning for putting object, will not cause secondary pollution to atmosphere after discharge；On the other hand, the solid product volume of generation it is smaller,
It is safer, it can be secondary use, be truly realized " innoxious, minimizing, recycling ".
Optionally, life refuse processing method according to the present invention can also include the following steps：
The feeding crusher 122 of house refuse 110 is crushed, broken house refuse is obtained；And
Broken house refuse is sent into the drying of drying device 121, obtains pretreating waste.
House refuse 110 can be broken in crusher 122 as a result, obtain the smaller broken life rubbish of multiple volumes
Rubbish.Broken house refuse has bigger specific surface area compared to house refuse 110, and thereby, it is possible to increase broken house refuse
Accessible area in the subsequent processing steps such as drying steps, burn down step saves the processing time of technique, improves
Treatment effeciency, improves treatment effect.
In order to further increase the energy utilization rate of domestic garbage treating system 100 according to the present invention, reduce operation at
This, which can also include the following steps：
High-temperature flue gas Q1 and cold air Q2 is sent into air preheater 142, so that high-temperature flue gas Q1 and cold air Q2 are in sky
It exchanges heat in air preheater 142, obtains low-temperature flue gas Q4 and hot-air Q3；And
Low-temperature flue gas Q4 is sent into gas-solid separator 141, hot-air Q3 is sent into pretreatment unit and plasma gasification
Crack melting furnace 151.
It, can be with that is, burn the high-temperature flue gas Q1 of generation in incinerator 130 before entering gas-solid separator 141
It is admitted to air preheater 142.In air preheater 142, energy exchange occurs for high-temperature flue gas Q1 and cold air Q2, so that high
The heat transfer of warm flue gas Q1 gives cold air Q2, obtains low-temperature flue gas Q4 and hot-air Q3.Further, hot-air Q3 is in drying
For drying house refuse 110 in device 121；Hot-air Q3 is solid for providing in plasma gasification cracking melting furnace 151
Body waste material reacts required a small amount of air.
Still optionally further, life refuse processing method can also include the following steps：Hot-air Q3 is in pretreatment unit
In exchange heat, obtain the second cold air Q5, by the second cold air Q5 be sent into incinerator 130.That is, in drying device
Heat exchange is carried out in 121, hot-air Q3, which becomes the second cold air Q5, the second cold air Q5, can be further used as incinerator
Combustion air in 130.
Optionally, generating in plasma gasification cracking melting furnace 151 has reducibility gas, and reducibility gas feeding is burnt
Burn furnace 130.Reducibility gas may be used as the combustion-supporting gas in incinerator 130 as a result, improve the utilization rate of the energy.
In order to further increase working efficiency, flying dust and the first solid residue can be sent into solid resultant product collection device 146,
Flying dust and the first solid residue are sent into plasma gasification cracking melting furnace 151 after assembling in solid resultant product collection device 146.By
This, can crack in melting furnace 151 to plasma gasification and concentrate investment material.It is alternatively possible to molten slag be discharged anxious
The glassy particles being discharged in device for cooling 152 are sent into slag collector 153.As a result, glassy particles can be received by concentrating
Secondary use is carried out as construction material 160 after collection.
Unless otherwise defined, technical and scientific term used herein and those skilled in the art of the invention
Normally understood meaning is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limitation is originally
Invention.The terms such as herein presented " portion ", " part " can both indicate single part, can also indicate multiple parts
Combination.The terms such as herein presented " installation ", " setting " can both indicate that a component was attached directly to another portion
Part can also indicate that a component is attached to another component by middleware.It describes in one embodiment herein
Feature can be applied in combination another embodiment individually or with other features, unless this feature is in another implementation
It is not suitable for or is otherwise noted in mode.
The present invention has been explained by the above embodiments, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, is not intended to limit the invention to the scope of the described embodiments.Furthermore those skilled in the art
It is understood that the present invention is not limited to the above embodiments, introduction according to the present invention can also be made more kinds of member
Variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (13)
1. a kind of domestic garbage treating system, which is characterized in that including：
Pretreatment unit, the pretreatment unit include house refuse import and pretreating waste outlet；
Incinerator, the incinerator include pretreating waste import, and high-temperature flue gas outlet and the first solid residue export, described pre-
Processing garbage inlet is connected with pretreating waste outlet；
Flue gas separation unit, the flue gas separation unit include gas-solid separator, and the gas-solid separator includes gas inlet, flies
Ash outlet and the first waste gas outlet, the gas inlet are connected with the high-temperature flue gas outlet；
Flue gas purification device, the flue gas purification device include that the first exhaust gas entrance and gaseous effluent export, and described first is useless
Gas entrance is connected with first waste gas outlet；And
Plasma gasification cracks melting plant, and the plasma gasification cracking melting plant includes interconnected plasma
Body gasification cracking melting furnace and molten slag discharge quenching apparatus, and the plasma gasification cracking melting furnace includes plasma
Furnace solid waste feed inlet, the plasma furnace solid waste feed inlet and the flying dust export and first solid residue outlet connects
Logical, the molten slag discharge quenching apparatus is connected to slag collector.
2. domestic garbage treating system according to claim 1, which is characterized in that the flue gas separation unit further includes sky
Air preheater, the air preheater include：
High-temperature flue gas entry, the high-temperature flue gas entry are connected with the high-temperature flue gas outlet；
Low-temperature flue gas outlet, the low-temperature flue gas outlet are connected with the gas inlet；
First cool air inlet, first cool air inlet is for being passed through cold air into the air preheater；And
Hot air outlet.
3. domestic garbage treating system according to claim 1, which is characterized in that the plasma gasification cracking melting
Furnace further includes reducibility gas outlet, and the incinerator includes reducibility gas entrance, reducibility gas outlet with it is described
The connection of reducibility gas entrance.
4. domestic garbage treating system according to claim 2, which is characterized in that the pretreatment unit includes crusher
And drying device, the crusher include the house refuse import and crush house refuse outlet, the drying device includes
Crush house refuse import and pretreating waste outlet, crushings house refuse outlet and the crushing house refuse into
Mouth is connected.
5. domestic garbage treating system according to claim 4, which is characterized in that the drying device includes that the first heat is empty
Gas entrance, plasma gasification cracking melting furnace include the second hot air inlet, first hot air inlet and described
Second hot air inlet is connected to the hot air outlet.
6. domestic garbage treating system according to claim 4, which is characterized in that the drying device further includes second cold
Air outlet slit, the incinerator include the second cool air inlet, second cold-air vent and second cool air inlet
Connection.
7. domestic garbage treating system according to claim 1, which is characterized in that the plasma gasification cracking melting
Solid resultant product collection device is set between furnace and the gas-solid separator and the incinerator, and the solid resultant product collection device includes
Second solid waste feed inlet and the second solid waste discharge port, the second solid waste feed inlet and the flying dust export and described first consolidates
Body solid discharge is connected, and the second solid waste discharge port is connected with the plasma furnace solid waste feed inlet.
8. a kind of life refuse processing method, which is characterized in that include the following steps：
House refuse is sent into pretreatment unit and carries out pre-treatment step, obtains pretreating waste；
The pretreating waste is sent into incinerator to burn, obtains high-temperature flue gas and the first solid residue；
The high-temperature flue gas is sent into gas-solid separator, obtains the first exhaust gas and flying dust；
First exhaust gas is sent into flue gas purification device, obtains the gaseous effluent for capableing of direct emission；And
First solid residue and the flying dust are sent into plasma gasification and crack melting furnace, molten product is obtained, by institute
It states molten product and is sent into molten slag discharge quenching apparatus progress quenching, obtain glassy particles.
9. life refuse processing method according to claim 8, which is characterized in that the life refuse processing method also wraps
Include following steps：
The high-temperature flue gas and cold air are sent into air preheater, so that the high-temperature flue gas and the cold air are in the sky
It exchanges heat in air preheater, obtains low-temperature flue gas and hot-air；And
The low-temperature flue gas is sent into the gas-solid separator, by the hot-air be sent into the pretreatment unit and it is described etc. from
Daughter gasification cracking melting furnace.
10. life refuse processing method according to claim 9, which is characterized in that the life refuse processing method is also
Include the following steps：
The hot-air exchanges heat in the pretreatment unit, obtains the second cold air, and second cold air is sent into
The incinerator.
11. life refuse processing method according to claim 8, which is characterized in that consolidate the flying dust and described first
Body residue is sent into solid resultant product collection device, and the flying dust and first solid residue are assembled in the solid resultant product collection device
After be sent into plasma gasification cracking melting furnace.
12. life refuse processing method according to claim 8, which is characterized in that the plasma gasification cracking is molten
Melt to generate in furnace and have reducibility gas, the reducibility gas is sent into the incinerator.
13. life refuse processing method according to claim 8, which is characterized in that the pre-treatment step includes：
The house refuse is sent into broken crusher machine, obtains broken house refuse；And
The broken house refuse is sent into drying device drying, obtains pretreating waste.
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