CN105903752A - Household garbage treatment system and method - Google Patents
Household garbage treatment system and method Download PDFInfo
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- CN105903752A CN105903752A CN201610431684.XA CN201610431684A CN105903752A CN 105903752 A CN105903752 A CN 105903752A CN 201610431684 A CN201610431684 A CN 201610431684A CN 105903752 A CN105903752 A CN 105903752A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Abstract
The invention discloses a household garbage treatment system and method. The system comprises a pretreatment device, a heat storing type radiant tube rotating bed and a cement kiln co-treating unit, wherein the pretreatment device is provided with a household garbage inlet, a smell outlet, an organic garbage outlet, an inorganic garbage outlet and a first sewage outlet; the heat storing type radiant tube rotating bed is provided with a first combustible gas inlet, a combustion-supporting air inlet, a quicklime inlet, an organic garbage inlet, a pyrolytic oil gas outlet and a pyrolytic carbon outlet; the combustion-supporting air inlet is connected with the smell outlet; the organic garbage inlet is connected with the organic garbage outlet; the cement kiln co-treating unit is provided with a raw material inlet, a fuel inlet, a waste gas outlet and a cement outlet; the fuel inlet is connected with the pyrolytic carbon outlet. With the adoption of the system, the production cost of cement can be effectively reduced; in addition, the harmless and resourceful treatment of the household garbage can be achieved, so that the system is high in economic benefit and social benefit.
Description
Technical field
The invention belongs to chemical technology field, specifically, the present invention relates to a kind of system and method processing house refuse.
Background technology
At present, the process problem of domestic waste becomes whole people's focus of attention already.Existing landfill, compost, burning etc.
Technology is due to himself intrinsic shortcoming so that it is development is limited to.China many urban construction domestic garbage burning electricity generation
Factory, but burn the two English pollution problems brought and cause people's dispute to waste incineration mode.Two English environmental toxicities are big,
The most degradable, cause great threat to resident is healthy.The method using cement kiln synergic processing rubbish, existing technology
Have after rubbish is directly burned or directly garbage raw material thrown away in cement kiln.Directly burn away the refuse dirts such as can producing two English
Dye environment, produces the device of some corrosive gas meeting corrosive water stall, breaking plant；And directly house refuse is thrown away into water
Reacting in stall, the complicated component of rubbish, water content high can affect the quality of cement products, affects whole cement kiln
Technique.
Therefore, the technology of existing process house refuse is further improved.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the one of the present invention
Purpose is to propose a kind of system and method processing house refuse, and this system is by assisting the process of house refuse with cement kiln
Combine with treatment technology, be possible not only to effectively reduce manufacture of cement cost, and the nothing of house refuse can be realized
Evilization and recycling treatment, have huge economic benefit and social benefit.
In the first aspect of the invention, this present invention proposes a kind of system processing house refuse.Reality according to the present invention
Executing example, this system includes:
Pretreatment unit, described pretreatment unit has house refuse entrance, foul smell outlet, organic waste outlet, inorganic rubbish
Rubbish outlet and the first outlet of sewer；
Heat accumulation type radiant tube revolving bed, described heat accumulation type radiant tube revolving bed have the first combustible gas entrance, combustion air inlet,
Quick lime entrance, organic waste entrance, pyrolysis oil gas vent and pyrolytic carbon outlet, described combustion air inlet and described foul smell
Outlet is connected, and described organic waste entrance is connected with the outlet of described organic waste；
Cement kiln synergetic unit, described cement kiln synergetic unit has feed(raw material)inlet, fuel inlet, waste gas outlet
And cement exit, described fuel inlet is connected with the outlet of described pyrolytic carbon.
Thus, the system of process house refuse according to embodiments of the present invention is by organic by obtain after house refuse pretreatment
Rubbish, foul smell and the supply of cement raw material quick lime carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, and quick lime is permissible
Pyrolysis oil in catalytic pyrolysis gained pyrolysis oil gas, such that it is able to significantly improve the yield of gained pyrolysis gas, and this part is raw
Calx can supply after pyrogenic processes to subsequent process and use as cement producting material, thus is not increasing processing cost
The wasting of resources that garbage loading embeading or burning cause can be avoided simultaneously, and can effectively solve to burn away the refuse by pyrolysis processing
The problem that two English brought pollute, makes the supply of gained pyrolytic carbon as fuel to cement kiln synergetic unit simultaneously
With, such that it is able to garbage disposal is combined with cement kiln synergetic unit, work in coordination with relative to existing cement kiln
Method of disposal, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, will not bank up and send out
Smelly, produce the problem that rubbish can be put nowhere, thus realize the innoxious of house refuse and recycling treatment.
It addition, the system of process house refuse according to the above embodiment of the present invention can also have a following additional technical characteristic:
In some embodiments of the invention, the system of described process house refuse farther includes: Oil-gas Separation purifier,
Described Oil-gas Separation purifier has pyrolysis oil gas entrance, pyrolysis gas outlet, pyrolysis oil outlet and the second outlet of sewer, institute
State pyrolysis oil gas entrance to be connected with described pyrolysis oil gas vent；Combustible gas storage tank, described combustible gas storage tank has the second combustible gas
Entrance and the outlet of the second combustible gas, described second combustible gas entrance is connected with described pyrolysis gas outlet, and described second combustible gas goes out
Mouth is connected with described first combustible gas entrance；Sewage-treatment plant, described sewage-treatment plant has sewage inlet and treatment fluid
Outlet, described sewage inlet is connected with described first outlet of sewer and described second outlet of sewer respectively.Thus, it is possible to it is notable
Improve the environmental benefit of this system.
In some embodiments of the invention, the outlet of described inorganic refuse is connected with described feed(raw material)inlet.Thus, it is possible to it is notable
Reduce manufacture of cement cost.
In some embodiments of the invention, described pyrolytic carbon outlet with described cement kiln synergetic unit on preheater,
Dore furnace is connected with the fuel inlet at least one in rotary kiln.Thus, it is possible to reduce manufacture of cement cost further.
In some embodiments of the invention, the system of described process house refuse farther includes: TRT, described
Electric installation has exhaust gas entrance and the outlet of boiler residual air, and described exhaust gas entrance is connected with described waste gas outlet, described boiler residual air
Outlet is connected with the raw material grinding mill in described cement kiln synergetic unit.Thus, it is possible to significantly reduce system energy consumption.
In another aspect of the invention, the present invention proposes a kind of method processing house refuse.Enforcement according to the present invention
Example, the method is that the system using process house refuse described above is carried out.According to a particular embodiment of the invention, should
Method includes:
(1) house refuse supply is carried out pretreatment to described pretreatment unit, in order to obtain foul smell, organic waste, nothing
Machine rubbish and the first sewage；
(2) by the supply of quick lime, described organic waste and described foul smell to described heat accumulation type radiant tube revolving bed, in order to institute
State organic waste and carry out pyrolysis processing, obtain being pyrolyzed oil gas and pyrolytic carbon；
(3) cement slurry is made to carry out collaborative place as fuel described pyrolytic carbon supply to described cement kiln synergetic unit
Reason, in order to obtain waste gas and cement.
Thus, the method for process house refuse according to embodiments of the present invention is by organic by obtain after house refuse pretreatment
Rubbish, foul smell and the supply of cement raw material quick lime carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, and quick lime is permissible
Pyrolysis oil in catalytic pyrolysis gained pyrolysis oil gas, such that it is able to significantly improve the yield of gained pyrolysis gas, and this part is raw
Calx can supply after pyrogenic processes to subsequent process and use as cement producting material, thus is not increasing processing cost
The wasting of resources that garbage loading embeading or burning cause can be avoided simultaneously, and can effectively solve to burn away the refuse by pyrolysis processing
The problem that two English brought pollute, makes the supply of gained pyrolytic carbon as fuel to cement kiln synergetic unit simultaneously
With, such that it is able to garbage disposal is combined with cement kiln synergetic unit, work in coordination with relative to existing cement kiln
Method of disposal, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, will not bank up and send out
Smelly, produce the problem that rubbish can be put nowhere, thus realize the innoxious of house refuse and recycling treatment.
It addition, the method for process house refuse according to the above embodiment of the present invention can also have a following additional technical characteristic:
In some embodiments of the invention, the method for described process house refuse farther includes: (4) are by described pyrolysis oil
Gas supply carries out isolation of purified process to described Oil-gas Separation purifier, in order to obtain pyrolysis gas, pyrolysis oil and the second sewage,
And the supply of described pyrolysis gas is used to described heat accumulation type radiant tube revolving bed as combustion gas；(5) institute that step (1) is obtained
State the first sewage and described second sewage that step (4) obtains supplies to sewage-treatment plant, in order to obtain treatment fluid.Thus,
The environmental benefit of this system can be significantly improved.
In some embodiments of the invention, the method for described process house refuse farther includes: step (1) is obtained by (6)
To the supply of described inorganic refuse to described cement kiln synergetic unit carries out described collaborative process.Thus, it is possible to it is notable
Reduce manufacture of cement cost.
In some embodiments of the invention, the method for described process house refuse farther includes: step (2) obtained
At least one in preheater, dore furnace and rotary kiln in described pyrolytic carbon supply extremely described cement kiln synergetic unit is made
Use for fuel.Thus, it is possible to reduce manufacture of cement cost further.
In some embodiments of the invention, the method for described process house refuse farther includes: step (3) is obtained by (7)
To the supply of described waste gas carry out UTILIZATION OF VESIDUAL HEAT IN to described TRT, in order to obtain boiler residual air, and by described boiler residual air
Supply uses to the raw material grinding mill in described cement kiln synergetic unit as dry medium.Thus, it is possible to significantly reduce system
Energy consumption.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become bright from the following description
Aobvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will be apparent from from combining the accompanying drawings below description to embodiment
With easy to understand, wherein:
Fig. 1 is the system structure schematic diagram processing house refuse according to an embodiment of the invention；
Fig. 2 is the system structure schematic diagram of the process house refuse according to further embodiment of the present invention；
Fig. 3 is the system structure schematic diagram of the process house refuse according to another embodiment of the present invention；
Fig. 4 is the system structure schematic diagram of the process house refuse according to another embodiment of the present invention；
Fig. 5 is the system structure schematic diagram of the process house refuse according to another embodiment of the present invention；
Fig. 6 is the method flow schematic diagram processing house refuse according to an embodiment of the invention；
Fig. 7 is the method flow schematic diagram of the process house refuse according to further embodiment of the present invention；
Fig. 8 is the method flow schematic diagram of the process house refuse according to another embodiment of the present invention；
Fig. 9 is the method flow schematic diagram of the process house refuse according to another embodiment of the present invention；
Figure 10 is the system structure schematic diagram of the process house refuse according to another embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of describe the present invention and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
Person implies the quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two,
Three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", the art such as " fixing "
Language should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part or the interaction relationship of two elements, unless otherwise clear and definite restriction.Ordinary skill for this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
One directly contacts with second feature, or the first and second features are by intermediary mediate contact.And, fisrt feature is
Two features " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of first
Characteristic level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature
Immediately below second feature or obliquely downward, or it is merely representative of fisrt feature level height less than second feature.
In one aspect of the invention, the present invention proposes a kind of system processing house refuse.According to embodiments of the invention,
With reference to Fig. 1, this system includes: pretreatment unit 100, heat accumulation type radiant tube revolving bed 200 and cement kiln synergetic unit
300。
According to embodiments of the invention, pretreatment unit 100 has house refuse entrance 101, foul smell outlet 102, organic rubbish
Rubbish outlet 103, inorganic refuse outlet 104 and the first outlet of sewer 105, and be suitable to house refuse is carried out pretreatment, thus
Foul smell, organic waste, inorganic refuse and the first sewage can be obtained.Concrete, after house refuse is weighed by weighbridge office,
Pour refuse pit into through discharging platform and carry out heap filter, obtain foul smell (being mainly composed of methane) and contaminant water, then by rubbish
The rubbish after being filtered by heap of grabbing bucket is sent in apron feeder, and apron feeder and uniform distribution machine are by conveying uniform and stable for material
On belt feeder, rubbish is transported to manual sorting room by belt feeder, by nothings such as chaff interference such as glass, brick and tile, branch, nettles
Machine garbage sorting out, then sieves through rotary screen, the organic waste obtained supply after roll crushing crusher machine again to after
Continuous process processes.
According to embodiments of the invention, heat accumulation type radiant tube revolving bed 200 has the first combustible gas entrance 201, combustion air
Entrance 202, quick lime entrance 203, organic waste entrance 204, pyrolysis oil gas vent 205 and pyrolytic carbon outlet 206, help
Combustion air intake 202 is connected with foul smell outlet 102, and organic waste entrance 204 is connected with organic waste outlet 103, and suitable
In the foul smell supply combustion air to heat accumulation type radiant tube revolving bed as heat accumulation type radiant tube is used, and with the first combustible gas
Burn in heat accumulation type radiant tube together for providing heat in revolving bed, supply to enter to revolving bed by quick lime and organic waste
Row pyrolysis processing, such that it is able to obtain being pyrolyzed oil gas and pyrolytic carbon.Concrete, from the organic waste of rubbish pretreatment unit
In revolving bed pyrolysis oven, about 600～900 DEG C it are heated to, its contained Organic substance and volatile matter under conditions of isolation air
The overwhelming majority separates out, and obtains being pyrolyzed oil gas and two kinds of products of pyrolytic carbon after pyrolysis, and the quick lime wherein added can be with catalytic pyrolysis
Tar in pyrolysis oil gas, thus improve the yield of pyrolysis gas.The burner hearth of the heat accumulation type radiant tube revolving bed that pyrolysis uses is ring
Shape, furnace bottom can rotate continuously, the organic waste obtained after pretreatment and quick lime, feeding device load heat accumulating type spoke
Penetrating in pipe revolving bed, be laid in equably on furnace bottom, layer thickness about 40～800mm, furnace bottom machine drives furnace bottom to turn continuously
Dynamic, the bed of material being layered on furnace bottom rotates with furnace bottom, sequentially passes through the preheating section of stove, a conversion zone, two conversion zones and three anti-
The section of answering, is finally heated to about 600～900 DEG C and completes pyrolytic reaction, and the pyrolytic carbon after pyrolysis is drawn off by pyrolytic carbon outlet
Outside stove, and immediately entering cooling chamber cooling, pyrolysis oil gas is discharged from multiple pyrolysis oil gas vents of burner hearth.Inventor finds,
Supplied to heat accumulation type radiant tube by the organic waste that will obtain after house refuse pretreatment, foul smell and cement raw material quick lime
Carrying out pyrolysis processing in revolving bed, quick lime can be with the pyrolysis oil in catalytic pyrolysis gained pyrolysis oil gas, such that it is able to significantly carry
The yield of high gained pyrolysis gas, and this part quick lime can supply to subsequent process as manufacture of cement after pyrogenic processes
Raw material uses, thus can avoid the wasting of resources that garbage loading embeading or burning cause while not increasing processing cost, and
Can effectively be solved to burn away the refuse the problem that two brought English pollute by pyrolysis processing.It should be noted that quick lime
Entrance 203 and organic waste entrance 204 can be single two entrances, it is also possible to for same entrance, art technology
Personnel can select according to actual needs.
According to embodiments of the invention, cement kiln synergetic unit 300 has feed(raw material)inlet 301, fuel inlet 302, gives up
Gas outlet 303 and cement exit 304, fuel inlet 302 is connected with pyrolytic carbon outlet 206, and is suitable to radiate heat accumulating type
The pyrolytic carbon that pipe revolving bed obtains makes cement slurry carry out collaborative process as the fuel of cement kiln synergetic unit, thus
Waste gas and cement can be obtained.Inventor finds, is supplied to cement by the pyrolytic carbon obtained by heat accumulation type radiant tube revolving bed
Kiln synergetic unit uses as fuel so that limestone, clay matter etc. as between cement slurry occur synergism,
Such that it is able to garbage disposal is combined with cement kiln synergetic unit, relative to existing cement kiln synergic processing
Method, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, will not bank up smelly,
Produce the problem that rubbish can be put nowhere, and then realize the innoxious of organic waste and recycling treatment.
Concrete, with reference to Fig. 2, cement kiln synergetic unit 300 include raw material grinding mill 31, homogenizing storehouse 32, preheater 33,
Dore furnace 34, rotary kiln 35, clinker warehouse 36 and fine coal deployment device 37 etc., according to a particular embodiment of the invention, reference
Fig. 2, can use at least one in pyrolytic carbon supply to preheater 33, dore furnace 34, rotary kiln 35 as fuel,
Cement slurry carries out pulverizing and dried through raw material grinding mill 31, supply successively to homogenizing storehouse 32, preheater 33, dore furnace 34,
Rotary kiln 35, clinker warehouse 36 and fine coal deployment device 37 process, and obtain waste gas and cement products.Become for controlling raw material
Partial wave is dynamic can increase in-line analyzer at raw material grinding mill, such that it is able to save the input of cement raw material.
The system of process house refuse according to embodiments of the present invention by the organic waste that will obtain after house refuse pretreatment,
Foul smell and the supply of cement raw material quick lime carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, and quick lime can be catalyzed and split
Solve the pyrolysis oil in gained pyrolysis oil gas, such that it is able to significantly improve the yield of gained pyrolysis gas, and this part quick lime warp
Can supply after pyrogenic processes to subsequent process and use as cement producting material, thus can while not increasing processing cost
With the wasting of resources avoiding garbage loading embeading or burning to cause, and can effectively solve to burn away the refuse brought by pyrolysis processing
Two English pollute problem, simultaneously using gained pyrolytic carbon supply use as fuel to cement kiln synergetic unit, from
And garbage disposal and cement kiln synergetic unit can be combined, relative to existing cement kiln synergic processing side
Method, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, will not bank up smelly, produces
The problem that raw rubbish can be put nowhere, thus realize the innoxious of house refuse and recycling treatment.
With reference to Fig. 3, according to embodiments of the invention, the system of described process house refuse farther includes: Oil-gas Separation is clean
Gasifying device 400, combustible gas storage tank 500 and sewage-treatment plant 600.
According to embodiments of the invention, Oil-gas Separation purifier 400 have pyrolysis oil gas entrance 401, pyrolysis gas outlet 402,
Pyrolysis oil outlet 403 and the second outlet of sewer 404, pyrolysis oil gas entrance 401 is connected with pyrolysis oil gas vent 205, and suitable
In the pyrolysis oil gas that will obtain in heat accumulation type radiant tube revolving bed for carrying out isolation of purified process, such that it is able to isolated pyrolysis
Air and heat solution oil and the second sewage.Concrete, from the pyrolysis oil gas of heat accumulation type radiant tube revolving bed through wet dedusting tower,
After being removed by the dust carried in pyrolysis oil gas, enter the transverse pipe initial cooler of two parallel operations, enter back into two parallel connections simultaneously
The electrical tar precipitator of operation, completes to remove the tar work carried secretly in pyrolysis gas, then will be pyrolyzed pneumatic transmission by coal gas Roots blower
Mechanization oil-water separation tank is entered to dry desulfurization operation, the gas-liquid separator separates pyrolysis oil got off and circulation pyrolysis water,
Pyrolysis water, pyrolysis oil separating, i.e. isolated pyrolysis oil and sewage it is circulated at this.It should be noted that this area
Actual conditions during this can be selected by technical staff according to actual needs.
According to embodiments of the invention, combustible gas storage tank 500 has the second combustible gas entrance 501 and the second combustible gas outlet 502,
Second combustible gas entrance 501 is connected with pyrolysis gas outlet 402, the second combustible gas outlet 502 and the first combustible gas entrance 201
It is connected, and is suitable to store the combustible gas of Oil-gas Separation purifier isolated, and the supply of this combustible gas is radiated to heat accumulating type
Pipe revolving bed uses as the fuel of radial canal.Thus, it is possible to significantly reduce processing cost.
According to embodiments of the invention, sewage-treatment plant 600 has sewage inlet 601 and treatment fluid outlet 602, sewage
Entrance 601 is connected with the first outlet of sewer 105 and the second outlet of sewer 404 respectively, and be suitable to obtain pretreatment unit
The second sewage that first sewage and Oil-gas Separation purifier obtain carries out purified treatment, such that it is able to obtain treatment fluid.Need
Illustrating, the actual conditions employed in this process can be selected by those skilled in the art according to actual needs.
With reference to Fig. 4, according to embodiments of the invention, inorganic refuse outlet 104 is connected with feed(raw material)inlet 301, and be suitable to by
The inorganic refuse containing glass, brick and tile and branch etc. of pretreatment unit isolated supplies to cement kiln synergetic unit
Substitute For Partial clayey raw material uses, such that it is able to significantly reduce manufacture of cement cost.Concrete, inorganic refuse on the one hand can
Substitute For Partial clay raw material, saves cement raw material and puts into, and on the other hand the poisonous and harmful substance in inorganic refuse is through cement
Solidification achieves harmless treatment, and wherein, inorganic refuse is of low quality in the 15% of cement entirety raw material.
With reference to Fig. 5, the system of process house refuse according to embodiments of the present invention farther includes: TRT 700.
According to embodiments of the invention, TRT 700 has exhaust gas entrance 701 and boiler residual air outlet 702, and waste gas enters
Mouth 701 is connected with waste gas outlet 303, and boiler residual air outlet 702 is connected with the raw material grinding mill 31 in cement kiln synergetic unit,
And the kiln tail gas supply being suitable to obtain quality coal in cement kiln systems processing unit carries out waste heat recovery to TRT, and by gained
To boiler residual air use as dry medium to the raw material grinding mill on quality coal in cement kiln systems processing unit as thermal source supply.Thus,
System energy consumption can be significantly reduced.
As it has been described above, the system of process house refuse according to embodiments of the present invention can have selected from least one following advantage:
The system of process house refuse according to embodiments of the present invention uses heat accumulation type radiant tube revolving bed that house refuse is carried out heat
Solve, it is to avoid burn the problem that two English brought pollute；
The system of process house refuse according to embodiments of the present invention by refuse pyrolysis is combined with cement kiln production line,
Take full advantage of the oil of refuse pyrolysis generation, gas, charcoal, the product after refuse pyrolysis is directly utilized, need not sell outward, save
Sales section；
The system of process house refuse according to embodiments of the present invention just adds quick lime in pyrolytic process, both plays pyrolysis
Catalytic action, can save again the link that later stage cement raw material adds, change the technological process of conventional cement kiln；
Product after the refuse pyrolysis of the system of process house refuse according to embodiments of the present invention can be utilized by cement kiln,
Save the raw material required for cement kiln produces；
The system of process house refuse according to embodiments of the present invention relative to original rubbish and cement kiln combined technology, this
Technology does not interferes with the production line of cement kiln itself, does not interferes with the quality of its product, and once cement kiln stops production, life
Rubbish can also process；
The system of process house refuse according to embodiments of the present invention improves the macroeconomic of refuse pyrolysis gasifying process, easily
In industrialization promotion.
In another aspect of the invention, the present invention proposes a kind of method processing house refuse.Enforcement according to the present invention
Example, the method is that the system using above-mentioned process house refuse is carried out.According to a particular embodiment of the invention, with reference to Fig. 6,
The method of described process house refuse includes:
S100: house refuse supply is carried out pretreatment to pretreatment unit
According to embodiments of the invention, house refuse supply is carried out pretreatment, such that it is able to obtain smelly to pretreatment unit
Gas, organic waste, inorganic refuse and the first sewage.Concrete, after house refuse is weighed by weighbridge office, through discharging platform
Pour refuse pit into and carry out heap filter, obtain foul smell (being mainly composed of methane) and contaminant water, then by garbage grab bucket, heap is filtered
After rubbish send in apron feeder, uniform and stable for material is transported on belt feeder by apron feeder with uniform distribution machine,
Rubbish is transported to manual sorting room by belt feeder, is sorted out by the chaff interference such as inorganic refuse such as glass, brick and tile, branch, nettle
Coming, then sieve through rotary screen, the organic waste obtained supplies to subsequent process after roll crushing crusher machine again
Reason.
S200: quick lime, organic waste and foul smell are supplied to heat accumulation type radiant tube revolving bed
According to embodiments of the invention, using the foul smell supply combustion-supporting sky to heat accumulation type radiant tube revolving bed as heat accumulation type radiant tube
Gas uses, and provides heat in burning for revolving bed in heat accumulation type radiant tube together with the first combustible gas, by quick lime with have
The supply of machine rubbish carries out pyrolysis processing to revolving bed, such that it is able to obtain being pyrolyzed oil gas and pyrolytic carbon.Concrete, from rubbish
The organic waste of rubbish pretreatment unit is heated to about 600～900 DEG C under conditions of isolation air in revolving bed pyrolysis oven,
Its contained Organic substance and the volatile matter overwhelming majority separate out, and obtain being pyrolyzed oil gas and two kinds of products of pyrolytic carbon, Qi Zhongtian after pyrolysis
The quick lime added with the tar in catalytic pyrolysis pyrolysis oil gas, thus can improve the yield of pyrolysis gas.The heat accumulating type that pyrolysis uses
Ringwise, furnace bottom can rotate the burner hearth of radial canal revolving bed continuously, the organic waste obtained after pretreatment and quick lime,
Loaded in heat accumulation type radiant tube revolving bed by feeding device, be laid in equably on furnace bottom, layer thickness about 40～800mm,
Furnace bottom machine drive furnace bottom rotate continuously, the bed of material being layered on furnace bottom with furnace bottom rotate, sequentially pass through the preheating section of stove, one
Conversion zone, two conversion zones and three conversion zones, be finally heated to about 600～900 DEG C and complete pyrolytic reaction, after pyrolysis
Pyrolytic carbon is unloaded by pyrolytic carbon outlet outside coming out of the stove, and immediately enters cooling chamber cooling, is pyrolyzed the oil gas multiple pyrolysis oil gas from burner hearth
Outlet is discharged.Inventor finds, raw by the organic waste that will obtain after house refuse pretreatment, foul smell and cement raw material
Calx supply carries out pyrolysis processing to heat accumulation type radiant tube revolving bed, and quick lime can be with in catalytic pyrolysis gained pyrolysis oil gas
Pyrolysis oil, such that it is able to significantly improve the yield of gained pyrolysis gas, and this part quick lime can supply after pyrogenic processes
Use as cement producting material to subsequent process, thus garbage loading embeading can be avoided while not increasing processing cost or burn
Burn the wasting of resources that causes, and can effectively be solved to burn away the refuse the problem that two brought English pollute by pyrolysis processing.
S300: make cement slurry carry out collaborative process as fuel pyrolytic carbon supply to cement kiln synergetic unit
According to embodiments of the invention, the pyrolytic carbon obtained by heat accumulation type radiant tube revolving bed is as cement kiln synergetic unit
Fuel make cement slurry carry out collaborative process, such that it is able to obtain waste gas and cement.Inventor finds, by by accumulation of heat
The pyrolytic carbon supply that formula radial canal revolving bed obtains uses as fuel to cement kiln synergetic unit so that limestone,
As there is synergism in clay matter etc., such that it is able to garbage disposal had with cement kiln synergetic unit between cement slurry
Machine combines, and relative to existing cement kiln synergic processing method, in this application, once cement kiln production line stops production,
House refuse can also be pyrolyzed in advance, will not bank up smelly, produces the problem that rubbish can be put nowhere, and then realizes organic waste
Innoxious and recycling treatment.According to a particular embodiment of the invention, pyrolytic carbon is supplied to cement kiln synergetic unit
On preheater, dore furnace and rotary kiln at least one use as fuel.
The method of process house refuse according to embodiments of the present invention by the organic waste that will obtain after house refuse pretreatment,
Foul smell and the supply of cement raw material quick lime carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, and quick lime can be catalyzed and split
Solve the pyrolysis oil in gained pyrolysis oil gas, such that it is able to significantly improve the yield of gained pyrolysis gas, and this part quick lime warp
Can supply after pyrogenic processes to subsequent process and use as cement producting material, thus can while not increasing processing cost
With the wasting of resources avoiding garbage loading embeading or burning to cause, and can effectively solve to burn away the refuse brought by pyrolysis processing
Two English pollute problem, simultaneously using gained pyrolytic carbon supply use as fuel to cement kiln synergetic unit, from
And garbage disposal and cement kiln synergetic unit can be combined, relative to existing cement kiln synergic processing side
Method, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, will not bank up smelly, produces
The problem that raw rubbish can be put nowhere, thus realize the innoxious of house refuse and recycling treatment.
With reference to Fig. 7, according to embodiments of the invention, the method for described process house refuse farther includes:
S400: pyrolysis oil gas supply to Oil-gas Separation purifier is carried out isolation of purified process, and gained pyrolysis gas is supplied
Use to heat accumulation type radiant tube revolving bed as combustion gas
According to embodiments of the invention, by the pyrolysis oil gas obtained in heat accumulation type radiant tube revolving bed for carrying out isolation of purified process,
Such that it is able to isolated pyrolysis gas, pyrolysis oil and the second sewage, and the supply of gained pyrolysis gas is rotated to heat accumulation type radiant tube
Bed uses as combustion gas.Concrete, the pyrolysis oil gas from heat accumulation type radiant tube revolving bed is pyrolyzed through wet dedusting tower, general
After the dust carried in oil gas is removed, enter the transverse pipe initial cooler of two parallel operations, enter back into what two parallel connections operated simultaneously
Electrical tar precipitator, completes to remove the tar work carried secretly in pyrolysis gas, then by coal gas Roots blower, pyrolysis gas is delivered to dry method
Desulfurization process, the gas-liquid separator separates pyrolysis oil got off and circulation pyrolysis water enter mechanization oil-water separation tank, enter at this
Row circulation pyrolysis water, pyrolysis oil separating, i.e. isolated pyrolysis oil and sewage.It should be noted that people in the art
Actual conditions during this can be selected by member according to actual needs.
The second sewage that S500: the first sewage obtained by S100 and S400 obtain supplies to sewage-treatment plant
According to embodiments of the invention, the first sewage that pretreatment unit is obtained and Oil-gas Separation purifier obtain second
Sewage carries out purified treatment, such that it is able to obtain treatment fluid.It should be noted that those skilled in the art can be according to reality
Need the actual conditions employed in this process is selected.
With reference to Fig. 8, according to embodiments of the invention, the method for described process house refuse farther includes:
S600: carry out collaborative process in the inorganic refuse supply obtained by S100 to cement kiln synergetic unit
According to embodiments of the invention, by the inorganic refuse containing glass, brick and tile and branch etc. of pretreatment unit isolated
Supply to Substitute For Partial clayey raw material in cement kiln synergetic unit uses, such that it is able to significantly reduce manufacture of cement cost.
Concrete, inorganic refuse on the one hand alternative part clay raw material, save cement raw material and put into, on the other hand inorganic refuse
In poisonous and harmful substance achieve harmless treatment through cement solidification effect, wherein, inorganic refuse is of low quality in cement
The 15% of overall raw material.
With reference to Fig. 9, according to embodiments of the invention, the method for described process house refuse farther includes:
S700: waste gas supply to the TRT obtained by S300 carries out UTILIZATION OF VESIDUAL HEAT IN, and supplies boiler residual air to cement kiln
Raw material grinding mill in synergetic unit
According to embodiments of the invention, waste gas step S300 obtained supply carries out UTILIZATION OF VESIDUAL HEAT IN to TRT, thus can
To obtain boiler residual air, and the supply of boiler residual air is used to the raw material grinding mill in cement kiln synergetic unit as dry medium.
Thus, it is possible to significantly reduce energy consumption.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are the most descriptive
, and limit the present invention never in any form.
Embodiment
Use the processs house refuse shown in Figure 10 system certain city's house refuse is processed, house refuse one-tenth be grouped into as
Shown in table 1:
Table 1 house refuse becomes to be grouped into (wt%)
A, pretreatment unit carry out pretreatment: after house refuse is weighed by weighbridge office, pour refuse pit into through discharging platform
Carrying out heap filter, obtain foul smell (being mainly composed of methane) and contaminant water, the rubbish after then being filtered by heap by garbage grab bucket is sent into
In apron feeder, uniform and stable for material is transported on belt feeder by apron feeder with uniform distribution machine, and belt feeder is by rubbish
Rubbish is transported to manual sorting room, is sorted out by the chaff interference such as inorganic refuse such as glass, brick and tile, branch, nettle, then through rolling
Shaft screen sieves, and the organic waste obtained supplies to heat accumulation type radiant tube revolving bed after roll crushing crusher machine again；
B, heat accumulation type radiant tube revolving bed are pyrolyzed: foul smell and organic waste, quick lime from rubbish pretreatment unit supply extremely
Heat accumulation type radiant tube revolving bed is heated to about 800 DEG C, contained by it under conditions of isolation air in revolving bed pyrolysis oven
Organic substance and the volatile matter overwhelming majority separate out, obtain after pyrolysis being pyrolyzed oil gas and two kinds of products of pyrolytic carbon.The storage that pyrolysis uses
Ringwise, furnace bottom can rotate the burner hearth of hot type radial canal revolving bed continuously, and the organic waste obtained after pretreatment, by filling
Material device loads in heat accumulation type radiant tube revolving bed, is laid in equably on furnace bottom, layer thickness about 700mm, furnace bottom machine
Drive furnace bottom rotate continuously, the bed of material being layered on furnace bottom with furnace bottom rotate, sequentially pass through the preheating section of stove, a conversion zone,
Two conversion zones and three conversion zones, be finally heated to about 800 DEG C and complete pyrolytic reaction, and the pyrolytic carbon after pyrolysis is by being pyrolyzed
Charcoal outlet is unloaded outside coming out of the stove, and immediately enters cooling chamber cooling, and pyrolysis oil gas is discharged from multiple pyrolysis oil gas vents of burner hearth.
C, cement kiln synergetic unit carry out collaborative process: the pyrolytic carbon obtained by heat accumulation type radiant tube revolving bed supplies to water
The preheater of stall synergetic unit, dore furnace and rotary kiln use as fuel, from house refuse pretreatment unit
Inorganic matter warehouse in the cement plant that inorganic refuse send, delivers on the feed belt of raw material grinding mill after grab bucket feeding, metering, with
Raw material enters raw material grinding mill after dispensing to carry out pulverizing and is dried, and can increase online in raw material grinding mill system for controlling material composition fluctuation
Analyser.Inorganic refuse on the one hand alternative part clay raw material, saves cement raw material and puts into, on the other hand inorganic refuse
In poisonous and harmful substance achieve harmless treatment through cement solidification effect, and inorganic refuse gross mass is not higher than cement
The 5% of overall proportion scale, kiln tail gas supply cement kiln synergetic unit obtained carries out waste heat to TRT and returns
Receive, and the raw material grinding mill that obtained boiler residual air supply is worked in coordination with in processing means to cement kiln is used as dry medium.
D, Oil-gas Separation purifier carry out being pyrolyzed oil gas purification separation: from the pyrolysis oil gas warp of heat accumulation type radiant tube revolving bed
Cross wet dedusting tower, after the dust carried is removed, enter the transverse pipe initial cooler of two parallel operations, then enter in pyrolysis oil gas
Enter the electrical tar precipitator that two parallel connections operate simultaneously, complete to remove the tar work carried secretly in pyrolysis gas, then roused by coal gas Roots
Pyrolysis gas is delivered to dry desulfurization operation, the gas-liquid separator separates pyrolysis oil got off and circulation pyrolysis water and is entered machinery by blower fan
Change oil-water separation tank, be circulated pyrolysis water, pyrolysis oil separating, i.e. isolated pyrolysis oil and sewage at this, and will divide
It is stored in combustible gas storage tank from the pyrolysis gas obtained, and supplies to heat accumulation type radiant tube revolving bed as spoke through combustible gas storage tank
Penetrate pipe combustion gas to use, gained sewage supply in Oil-gas Separation purifier gained sewage and pretreatment unit is filled to sewage disposal
Put and process.
Composition and the calorific value of pyrolytic carbon are as shown in table 2:
Table 2 pyrolytic carbon composition and calorific value
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (10)
1. the system processing house refuse, it is characterised in that including:
Pretreatment unit, described pretreatment unit has house refuse entrance, foul smell outlet, organic waste outlet, inorganic rubbish
Rubbish outlet and the first outlet of sewer；
Heat accumulation type radiant tube revolving bed, described heat accumulation type radiant tube revolving bed have the first combustible gas entrance, combustion air inlet,
Quick lime entrance, organic waste entrance, pyrolysis oil gas vent and pyrolytic carbon outlet, described combustion air inlet and described foul smell
Outlet is connected, and described organic waste entrance is connected with the outlet of described organic waste；
Cement kiln synergetic unit, described cement kiln synergetic unit has feed(raw material)inlet, fuel inlet, waste gas outlet
And cement exit, described fuel inlet is connected with the outlet of described pyrolytic carbon.
System the most according to claim 1, it is characterised in that farther include:
Oil-gas Separation purifier, described Oil-gas Separation purifier has pyrolysis oil gas entrance, pyrolysis gas outlet, pyrolysis oil
Outlet and the second outlet of sewer, described pyrolysis oil gas entrance is connected with described pyrolysis oil gas vent；
Combustible gas storage tank, described combustible gas storage tank has the second combustible gas entrance and the outlet of the second combustible gas, described second flammable
Gas entrance is connected with described pyrolysis gas outlet, and described second combustible gas outlet is connected with described first combustible gas entrance；
Sewage-treatment plant, described sewage-treatment plant have sewage inlet and treatment fluid outlet, described sewage inlet respectively with
Described first outlet of sewer is connected with described second outlet of sewer.
System the most according to claim 1 and 2, it is characterised in that the outlet of described inorganic refuse and described feed(raw material)inlet
It is connected.
4. according to the system described in any one of claim 1-3, it is characterised in that the outlet of described pyrolytic carbon and described cement kiln
Preheater, dore furnace in synergetic unit are connected with the fuel inlet at least one in rotary kiln.
5. according to the system described in any one of claim 1-4, it is characterised in that farther include:
TRT, described TRT has exhaust gas entrance and the outlet of boiler residual air, and described exhaust gas entrance goes out with described waste gas
Mouth is connected, and the outlet of described boiler residual air is connected with the raw material grinding mill in described cement kiln synergetic unit.
6. use the method that the system of the process house refuse according to any one of Claims 1 to 5 processes house refuse,
It is characterized in that, including:
(1) house refuse supply is carried out pretreatment to described pretreatment unit, in order to obtain foul smell, organic waste, nothing
Machine rubbish and the first sewage；
(2) by the supply of quick lime, described organic waste and described foul smell to described heat accumulation type radiant tube revolving bed, in order to institute
State organic waste and carry out pyrolysis processing, obtain being pyrolyzed oil gas and pyrolytic carbon；
(3) cement slurry is made to carry out collaborative place as fuel described pyrolytic carbon supply to described cement kiln synergetic unit
Reason, in order to obtain waste gas and cement.
Method the most according to claim 6, it is characterised in that farther include:
(4) supply of described pyrolysis oil gas is carried out isolation of purified process to described Oil-gas Separation purifier, in order to be pyrolyzed
Air and heat solution oil and the second sewage, and the supply of described pyrolysis gas is used to described heat accumulation type radiant tube revolving bed as combustion gas；
(5) described second sewage that described first sewage step (1) obtained and step (4) obtain supplies to sewage
Reason device, in order to obtain treatment fluid.
8. according to the method described in claim 6 or 7, it is characterised in that farther include:
(6) described inorganic refuse supply step (1) obtained carries out described association to described cement kiln synergetic unit
With processing.
9. according to the method according to any one of claim 6-8, it is characterised in that the described heat that step (2) is obtained
Solve at least one in charcoal supply preheater, dore furnace and rotary kiln to described cement kiln synergetic unit as fuel
Use.
10. according to the method according to any one of claim 6-9, it is characterised in that farther include:
(7) described waste gas supply step (3) obtained carries out UTILIZATION OF VESIDUAL HEAT IN to described TRT, in order to obtain boiler
Residual air, and the supply of described boiler residual air is used to the raw material grinding mill in described cement kiln synergetic unit as dry medium.
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