CN105903753A - Household garbage treatment system and method - Google Patents

Household garbage treatment system and method Download PDF

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Publication number
CN105903753A
CN105903753A CN201610431685.4A CN201610431685A CN105903753A CN 105903753 A CN105903753 A CN 105903753A CN 201610431685 A CN201610431685 A CN 201610431685A CN 105903753 A CN105903753 A CN 105903753A
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CN
China
Prior art keywords
outlet
inlet
gas
pyrolytic carbon
house refuse
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CN201610431685.4A
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Chinese (zh)
Inventor
贾懿曼
包欣欣
肖磊
王鹏飞
吴道洪
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北京神雾环境能源科技集团股份有限公司
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Priority to CN201610431685.4A priority Critical patent/CN105903753A/en
Publication of CN105903753A publication Critical patent/CN105903753A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless
    • B09B3/0083Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless by means of a thermal treatment, e.g. evaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B5/00Operations not covered by 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, a gasifying device, a cement kiln co-treating unit and a power generating device, wherein the pretreatment device is provided with a household garbage inlet, a smell outlet, an organic garbage outlet and an inorganic garbage outlet; the heat storing type radiant tube rotating bed is provided with a combustion-supporting air inlet, an organic garbage inlet 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 gasifying device is provided with a pyrolytic carbon inlet, a combustible gas outlet and a residue outlet; the pyrolytic carbon inlet is connected with a pyrolytic carbon outlet; the combustible gas outlet is connected with a combustible gas inlet; the cement kiln co-treating unit is provided with a raw material inlet and a waste gas outlet; the raw material inlet is connected with the residue outlet and the inorganic garbage outlet; the power generating device is provided with a waste gas inlet and a boiler residual air outlet and a waste gas 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

Process the system and method for house refuse

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 put 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 put into water Reacting in stall, the complicated component of rubbish, raw material fluctuation is big, and water content high can affect the quality of cement products, shadow Ring the normal production of whole cement kiln.

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 outlet of sewer;

Heat accumulation type radiant tube revolving bed, described heat accumulation type radiant tube revolving bed has combustible gas entrance, combustion air inlet, has Machine garbage inlet, pyrolysis oil gas vent and pyrolytic carbon outlet, described combustion air inlet is connected with the outlet of described foul smell, described Organic waste entrance is connected with the outlet of described organic waste;

Gasification installation, described gasification installation has pyrolytic carbon entrance, combustible gas outlet and solid discharge, described pyrolytic carbon entrance Being connected with the outlet of described pyrolytic carbon, the outlet of described combustible gas is connected with described combustible gas entrance;

Cement kiln synergetic unit, described cement kiln synergetic unit has feed(raw material)inlet, waste gas outlet and cement exit, Described feed(raw material)inlet exports with described solid discharge and described inorganic refuse respectively and is connected;

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.

Thus, the system of process house refuse according to embodiments of the present invention is by organic by obtain after house refuse pretreatment Rubbish and foul smell supply carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, can obtain being pyrolyzed oil gas and pyrolytic carbon, Such that it is able to avoid the wasting of resources that garbage loading embeading or burning cause, and can effectively solve to burn away the refuse by pyrolysis processing The problem that two English brought pollute, obtains combustible gas and residue simultaneously by gained pyrolytic carbon supply to gasification installation, and will Gained combustible gas returns and uses as combustion gas as in heat accumulation type radiant tube revolving bed, obtained residue and inorganic refuse supply Coordinate limestone, clay matter etc. as cement slurry to cement kiln synergetic unit, be so possible not only to effectively reduce water Mud cost, and so that rubbish waste residue and separating obtained inorganic refuse are fully utilized, such that it is able to by garbage disposal Combine 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, produces what rubbish can be put nowhere Problem, secondly, the residue obtained middle harmful and noxious substance that gasifies solidifies through cement, thus realizes the innoxious of house refuse And recycling treatment, it addition, carry out remaining by kiln tail gas supply to the TRT that cement kiln synergetic unit is obtained Recuperation of heat, it is possible to achieve the recycling of the energy.

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: sewage-treatment plant, institute Stating sewage-treatment plant and have sewage inlet and treatment fluid outlet, described sewage inlet is connected with described outlet of sewer.Thus, The environmental benefit of this system can be significantly improved.

In some embodiments of the invention, described pyrolysis oil gas vent is connected with the fuel inlet on described TRT.By This, can significantly reduce cost of electricity-generating.

In some embodiments of the invention, the outlet of described boiler residual air and the raw material grinding mill in described cement kiln synergetic unit It is connected.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 sewage;

(2) described organic waste and described foul smell are supplied to described heat accumulation type radiant tube revolving bed, in order to described organic rubbish Rubbish carries out pyrolysis processing, obtains being pyrolyzed oil gas and pyrolytic carbon;

(3) supply of described pyrolytic carbon is carried out gasification process to described gasification installation, in order to obtain combustible gas and residue, and will Described combustible gas is back in described heat accumulation type radiant tube revolving bed make combustible gas and uses;

(4) described residue and described inorganic refuse are supplied extremely described cement kiln synergetic unit and carry out collaborative process, in order to Obtain waste gas and cement,

(5) described waste gas supply step (4) obtained carries out UTILIZATION OF VESIDUAL HEAT IN to described TRT, in order to obtain boiler Residual air.

Thus, the method for process house refuse according to embodiments of the present invention is by organic by obtain after house refuse pretreatment Rubbish and foul smell supply carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, can obtain being pyrolyzed oil gas and pyrolytic carbon, Such that it is able to avoid the wasting of resources that garbage loading embeading or burning cause, and can effectively solve to burn away the refuse by pyrolysis processing The problem that two English brought pollute, obtains combustible gas and residue simultaneously by gained pyrolytic carbon supply to gasification installation, and will Gained combustible gas returns and uses as combustion gas as in heat accumulation type radiant tube revolving bed, obtained residue and inorganic refuse supply Coordinate limestone, clay matter etc. as cement slurry to cement kiln synergetic unit, be so possible not only to effectively reduce water Mud cost, and so that rubbish waste residue and separating obtained inorganic refuse are fully utilized, such that it is able to by garbage disposal Combine 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, produces what rubbish can be put nowhere Problem, secondly, the residue obtained middle harmful and noxious substance that gasifies solidifies through cement, thus realizes the innoxious of house refuse And recycling treatment, it addition, carry out remaining by kiln tail gas supply to the TRT that cement kiln synergetic unit is obtained Recuperation of heat, it is possible to achieve the recycling of the energy.

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: step (1) is obtained by (6) The described sewage arrived supplies to sewage-treatment plant, in order to obtain treatment fluid.Thus, it is possible to significantly improve the environmental protection of this system Benefit.

In some embodiments of the invention, the method for described process house refuse farther includes: step (2) is obtained by (7) The described pyrolysis oil gas supply arrived uses to described TRT as fuel.Thus, it is possible to significantly reduce cost of electricity-generating.

In some embodiments of the invention, the method for described process house refuse farther includes: step (5) is obtained by (8) To the supply of described boiler residual air use to the raw material grinding mill in described cement kiln synergetic unit as dry medium.Thus, System energy consumption can be significantly reduced.

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, gasification installation 300, cement Kiln synergetic unit 400 and TRT 500.

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 outlet of sewer 105, and be suitable to house refuse is carried out pretreatment, such that it is able to Obtain foul smell, organic waste, inorganic refuse and sewage.Concrete, after house refuse is weighed by weighbridge office, put down through discharging Platform is poured refuse pit into and is carried out heap filter, obtains foul smell (being mainly composed of methane) and contaminant water, then by garbage grab bucket by heap Rubbish after filter is sent in apron feeder, and uniform and stable for material is transported to belt feeder with uniform distribution machine by apron feeder On, rubbish is transported to manual sorting room by belt feeder, is divided by the chaff interference such as inorganic refuse such as glass, brick and tile, branch, nettle Sorting out, then sieve through rotary screen, the organic waste obtained supplies to subsequent process to enter again after roll crushing crusher machine Row processes.

According to embodiments of the invention, heat accumulation type radiant tube revolving bed 200 has combustible gas entrance 201, combustion air inlet 202, organic waste entrance 203, pyrolysis oil gas vent 204 and pyrolytic carbon outlet 205, combustion air inlet 202 and foul smell Outlet 102 is connected, and organic waste entrance 203 is connected with organic waste outlet 103, and is suitable to supply to heat accumulating type foul smell Radial canal revolving bed uses as the combustion air of heat accumulation type radiant tube, and burns in heat accumulation type radiant tube together with combustible gas For providing heat in revolving bed, organic waste supply is carried out pyrolysis processing to revolving bed, such that it is able to obtain being pyrolyzed oil gas And pyrolytic carbon.Concrete, from the organic waste of rubbish pretreatment unit under conditions of isolation air at revolving bed pyrolysis oven Inside being heated to about 600~900 DEG C, its contained Organic substance and the volatile matter overwhelming majority separate out, and obtain being pyrolyzed oil gas after pyrolysis With two kinds of products of pyrolytic carbon.Ringwise, furnace bottom can rotate the burner hearth of the heat accumulation type radiant tube revolving bed that pyrolysis uses continuously, warp The organic waste obtained after crossing pretreatment, is loaded in heat accumulation type radiant tube revolving bed by feeding device, is laid in furnace bottom equably On, layer thickness about 40~800mm, furnace bottom machine drives furnace bottom to rotate continuously, and the bed of material being layered on furnace bottom rotates with furnace bottom, Sequentially pass through the preheating section of stove, a conversion zone, two conversion zones and three conversion zones, be finally heated to about 600~900 DEG C And completing pyrolytic reaction, the pyrolytic carbon after pyrolysis is unloaded by pyrolytic carbon outlet outside coming out of the stove, and immediately enters cooling chamber cooling, pyrolysis Oil gas is discharged from multiple pyrolysis oil gas vents of burner hearth.Inventor finds, by organic by obtain after house refuse pretreatment Rubbish and foul smell supply carry out pyrolysis processing to heat accumulation type radiant tube revolving bed, can obtain being pyrolyzed oil gas and pyrolytic carbon, Such that it is able to avoid the wasting of resources that garbage loading embeading or burning cause, and can effectively solve to burn away the refuse by pyrolysis processing The problem that two English brought pollute.

According to embodiments of the invention, gasification installation 300 has pyrolytic carbon entrance 301, combustible gas outlet 302 and residue and goes out Mouth 303, pyrolytic carbon entrance 301 is connected with pyrolytic carbon outlet 205, and combustible gas outlet 302 is connected with combustible gas entrance 201, And be suitable to the pyrolytic carbon obtained in heat accumulation type radiant tube revolving bed is carried out gasification process, such that it is able to obtain combustible gas and residue, And obtained combustible gas return heat accumulation type radiant tube revolving bed is used as the combustion gas of radial canal.Concrete, gasification includes Vaporizing system fuel gas and produced combustible gas purifying two parts, air enters aerator boosting, heats in air preheater, point Do not go at the bottom of gasification installation and returning charge gasifier bed, gasification installation inlet pipeline is provided with blender, at this air and steam Mix homogeneously, sprays in gasification installation, and another part sprays into returning charge gasifier bed, the residue of gasification installation inner bottom part, final To combustible gas and residue, and this part combustible gas supply combustion gas to heat accumulation type radiant tube revolving bed as radial canal is used. It should be noted that the actual conditions of gasification process can be selected by those skilled in the art according to actual needs.

According to embodiments of the invention, cement kiln synergetic unit 400 has feed(raw material)inlet 401, waste gas outlet 402 and Cement exit 403, feed(raw material)inlet 401 exports 104 with solid discharge 303 and inorganic refuse and is connected, and is suitable to residue, nothing Machine rubbish and cement slurry carry out collaborative process, such that it is able to obtain waste gas and cement.Inventor finds, by gasification being filled Put inorganic refuse supply obtained by the residue and pretreatment unit obtained to cement kiln synergetic unit coordinates limestone, Clay matter etc., as cement slurry, are so possible not only to effectively reduce cement cost, and so that rubbish waste residue are filled Divide and utilize, such that it is able to garbage disposal is combined with cement kiln synergetic unit, relative to existing cement kiln Cooperative disposal method, in this application, once cement kiln production line stops production, and house refuse can also be pyrolyzed in advance, Bu Huidui Put 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 400 include raw material grinding mill 41, homogenizing storehouse 42, preheater 43, Dore furnace 44, rotary kiln 45, clinker warehouse 46 and fine coal deployment device 47 etc., residue carries out pulverizing through raw material grinding mill 41 and does After dry, supply successively together with cement slurry to homogenizing storehouse 42, preheater 43, dore furnace 44, rotary kiln 45, clinker warehouse 46 and fine coal deployment device 47 process, obtain waste gas and cement products.Can be at raw material grinding mill for controlling material composition fluctuation Increasing in-line analyzer, thus on the one hand save the input of cement raw material, on the other hand the poisonous and harmful substance in residue is passed through Cement solidification effect achieves harmless treatment.

According to embodiments of the invention, with reference to Fig. 1, TRT 500 has exhaust gas entrance 501 and boiler residual air outlet 502, Exhaust gas entrance 501 is connected with waste gas outlet 402, and the kiln tail gas being suitable to obtain quality coal in cement kiln systems processing unit supplies extremely TRT carries out waste heat recovery.Thus, it is possible to significantly improve the efficient utilization of the energy.

The system of process house refuse according to embodiments of the present invention by the organic waste that will obtain after house refuse pretreatment and Foul smell supply carries out pyrolysis processing to heat accumulation type radiant tube revolving bed, can obtain being pyrolyzed oil gas and pyrolytic carbon, thus can 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 The problem polluted of two English, the supply of gained pyrolytic carbon is obtained combustible gas and residue to gasification installation, and can by gained simultaneously Combustion gas returns and uses as combustion gas as in heat accumulation type radiant tube revolving bed, and obtained residue and inorganic refuse supply to cement Kiln synergetic unit coordinates limestone, clay matter etc. as cement slurry, is so possible not only to effectively reduce cement cost, And so that rubbish waste residue and separating obtained inorganic refuse are fully utilized, such that it is able to by garbage disposal and cement kiln Synergetic unit combines, 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, produces the problem that rubbish can be put nowhere, its Secondary, the residue obtained middle harmful and noxious substance that gasifies solidifies through cement, thus realizes the innoxious of house refuse and resource Process, it addition, carry out waste heat recovery by kiln tail gas supply cement kiln synergetic unit obtained to TRT, The recycling of the energy can be realized.

With reference to Fig. 3, according to embodiments of the invention, the system of described process house refuse farther includes: sewage disposal fills Put 600.

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 outlet of sewer 105 respectively, and the sewage being suitable to be obtained by pretreatment unit carries out purified treatment, thus Can be processed liquid.It should be noted that those skilled in the art can be according to actual needs to this process employed in Actual conditions selects.

With reference to Fig. 4, according to embodiments of the invention, pyrolysis oil gas vent 204 can enter with the fuel on TRT 500 Mouth is connected, and is suitable to use the pyrolysis oil gas obtained in heat accumulation type radiant tube revolving bed supply as fuel to TRT, Such that it is able to significantly reduce cost of electricity-generating.

With reference to Fig. 5, according to embodiments of the invention, boiler residual air outlet 502 and the raw material in cement kiln synergetic unit Mill 41 is connected, and be suitable to boiler residual air that TRT is obtained as thermal source supply to quality coal in cement kiln systems processing unit on former Material mill uses as being dried medium.Thus, it is possible to significantly reduce system energy consumption.

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;

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 sewage.Concrete, after house refuse is weighed by weighbridge office, pour into through discharging platform Refuse pit carries out heap filter, obtains foul smell (being mainly composed of methane) and contaminant water, after then being filtered by heap by garbage grab bucket Rubbish is sent in apron feeder, and uniform and stable for material is transported on belt feeder by apron feeder with uniform distribution machine, skin Rubbish is transported to manual sorting room by band machine, is sorted out by the chaff interference such as inorganic refuse such as glass, brick and tile, branch, nettle, Sieving through rotary screen, the organic waste obtained supplies after roll crushing crusher machine to subsequent process again and processes again.

S200: 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 burns in heat accumulation type radiant tube together with combustible gas for providing heat in revolving bed, is supplied extremely by organic waste Pyrolysis processing is carried out, such that it is able to obtain being pyrolyzed oil gas and pyrolytic carbon in revolving bed.Concrete, from rubbish pretreatment unit Organic waste under conditions of isolation air, in revolving bed pyrolysis oven, be heated to about 600~900 DEG C, it is contained organic Thing and the volatile matter overwhelming majority separate out, and obtain being pyrolyzed oil gas and two kinds of products of pyrolytic carbon after pyrolysis.The heat accumulating type spoke that pyrolysis uses Penetrating the burner hearth of pipe revolving bed ringwise, furnace bottom can rotate continuously, and the organic waste obtained after pretreatment, by feeding device Load in heat accumulation type radiant tube revolving bed, be laid in equably on furnace bottom, layer thickness about 40~800mm, furnace bottom machine band Dynamic furnace bottom rotates 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 zone and three conversion zones, be finally heated to about 600~900 DEG C and complete pyrolytic reaction, and the pyrolytic carbon after pyrolysis is by warm Solution 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. Inventor finds, is supplied to heat accumulation type radiant tube revolving bed by the organic waste that will obtain after house refuse pretreatment and foul smell In carry out pyrolysis processing, can obtain being pyrolyzed oil gas and pyrolytic carbon, such that it is able to avoid the money that garbage loading embeading or burning cause Source is wasted, and can effectively be solved to burn away the refuse the problem that two brought English pollute by pyrolysis processing.

S300: pyrolytic carbon supply to gasification installation is carried out gasification process, and combustible gas is back to heat accumulation type radiant tube rotation Make combustion gas in Chuan to use

According to embodiments of the invention, the pyrolytic carbon obtained in heat accumulation type radiant tube revolving bed is carried out gasification process, thus can To obtain combustible gas and residue, and obtained combustible gas return heat accumulation type radiant tube revolving bed is made as the combustion gas of radial canal With.Concrete, gasification includes vaporizing system fuel gas and produced combustible gas purifying two parts, and air enters aerator boosting, Air preheater heats, goes at the bottom of gasification installation respectively and returning charge gasifier bed, gasification installation inlet pipeline is provided with mixing Device, uniform with steam at this air, spray in gasification installation, another part sprays into returning charge gasifier bed, gasification installation The residue of inner bottom part, finally gives combustible gas and residue, and the supply of this part combustible gas is made to heat accumulation type radiant tube revolving bed Combustion gas for radial canal uses.It should be noted that those skilled in the art can tool to gasification process according to actual needs Concrete conditions in the establishment of a specific crime selects.

S400: residue and inorganic refuse are supplied and carries out working in coordination with process to cement kiln synergetic unit

According to embodiments of the invention, residue obtained for gasification installation and pretreatment unit gained inorganic refuse are supplied with cement slurry Give and carry out working in coordination with process, such that it is able to obtain waste gas and cement to cement kiln synergetic unit.Inventor finds, by inciting somebody to action Inorganic refuse supply obtained by residue that gasification installation obtains and pretreatment unit coordinates stone to cement kiln synergetic unit Lime stone, clay matter etc., as cement slurry, are so possible not only to effectively reduce cement cost, and so that rubbish waste residue It is fully utilized, 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.

S500: the waste gas supply obtained by S400 carries out UTILIZATION OF VESIDUAL HEAT IN to TRT

According to embodiments of the invention, the kiln tail gas obtained by quality coal in cement kiln systems processing unit supply is carried out to TRT Waste heat recovery.Thus, it is possible to significantly improve the efficient utilization of the energy.

The method of process house refuse according to embodiments of the present invention by the organic waste that will obtain after house refuse pretreatment and Foul smell supply carries out pyrolysis processing to heat accumulation type radiant tube revolving bed, can obtain being pyrolyzed oil gas and pyrolytic carbon, thus can 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 The problem polluted of two English, the supply of gained pyrolytic carbon is obtained combustible gas and residue to gasification installation, and can by gained simultaneously Combustion gas returns and uses as combustion gas as in heat accumulation type radiant tube revolving bed, and obtained residue and inorganic refuse supply to cement Kiln synergetic unit coordinates limestone, clay matter etc. as cement slurry, is so possible not only to effectively reduce cement cost, And so that rubbish waste residue and separating obtained inorganic refuse are fully utilized, such that it is able to by garbage disposal and cement kiln Synergetic unit combines, 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, produces the problem that rubbish can be put nowhere, its Secondary, the residue obtained middle harmful and noxious substance that gasifies solidifies through cement, thus realizes the innoxious of house refuse and resource Process, it addition, carry out waste heat recovery by kiln tail gas supply cement kiln synergetic unit obtained to TRT, The recycling of the energy can be realized.

With reference to Fig. 7, according to embodiments of the invention, the method for described process house refuse farther includes:

S600: the sewage obtained by S100 supplies to sewage-treatment plant

According to embodiments of the invention, the sewage obtained by pretreatment unit supply carries out purified treatment to sewage-treatment plant, Such that it is able to obtain treatment fluid.It should be noted that those skilled in the art can be adopted during this according to actual needs Actual conditions select.

With reference to Fig. 8, according to embodiments of the invention, the method for described process house refuse farther includes:

S700: the pyrolysis oil gas supply obtained by S200 uses to TRT as fuel

According to embodiments of the invention, using the pyrolysis oil gas supply that obtains in heat accumulation type radiant tube revolving bed to TRT as Fuel uses, such that it is able to significantly reduce cost of electricity-generating.

With reference to Fig. 9, according to embodiments of the invention, the method for described process house refuse farther includes:

S800: the raw material grinding mill in the boiler residual air supply that S500 is obtained to cement kiln synergetic unit

According to embodiments of the invention, the boiler residual air obtained by TRT processes single as thermal source supply to quality coal in cement kiln systems Raw material grinding mill in unit uses as dry medium.Thus, it is possible to significantly reduce system 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 from rubbish pretreatment unit supply to heat accumulating type spoke Penetrate in pipe revolving bed and in revolving bed pyrolysis oven, be heated to about 800 DEG C under conditions of isolation air, its contained Organic substance And the volatile matter overwhelming majority separates out, obtain after pyrolysis being pyrolyzed oil gas and two kinds of products of pyrolytic carbon.The heat accumulating type radiation that pyrolysis uses Ringwise, furnace bottom can rotate the burner hearth of pipe revolving bed continuously, and the organic waste obtained after pretreatment is filled by feeding device Entering in heat accumulation type radiant tube revolving bed, be laid in equably on furnace bottom, layer thickness about 700mm, furnace bottom machine drives furnace bottom Rotating continuously, 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 With three conversion zones, being finally heated to about 800 DEG C and complete pyrolytic reaction, the pyrolytic carbon after pyrolysis is unloaded by pyrolytic carbon outlet Outside coming out of the stove, and immediately entering cooling chamber cooling, pyrolysis oil gas is discharged from multiple pyrolysis oil gas vents of burner hearth.

C, gasification installation carry out gasification process: gasification includes vaporizing system fuel gas and produced combustible gas purifying two parts, by heat Solving charcoal to supply to gasification installation, air enters aerator boosting, heats, go respectively at the bottom of gasification installation in air preheater And returning charge gasifier bed, gasification installation inlet pipeline is provided with blender, uniform with steam at this air, spray into In gasification installation, another part sprays into returning charge gasifier bed, the residue of gasification installation inner bottom part, finally gives combustible gas and residue, And this part combustible gas supply combustion gas to heat accumulation type radiant tube revolving bed as radial canal is used.

D, cement kiln synergetic unit carry out collaborative process: the gentle makeup of inorganic refuse from house refuse pretreatment unit Put the inorganic matter warehouse in the residue obtained cement plant sent, deliver on the feed belt of raw material grinding mill after grab bucket feeding, metering, After dispensing, enter raw material grinding mill with raw material carry out pulverizing and be dried, can increase in raw material grinding mill system for controlling material composition fluctuation Line analysis instrument.Inorganic refuse on the one hand alternative part clay raw material, saves cement raw material and puts into, on the other hand in residue Poisonous and harmful substance achieve harmless treatment through cement solidification effect, and the gross mass of inorganic refuse and residue is the highest In the 5% of cement entirety proportion scale, kiln tail gas cement kiln synergetic unit obtained and heat accumulation type radiant tube obtain Pyrolysis oil gas supply to TRT carries out waste heat recovery, and to cement kiln is collaborative, obtained boiler residual air supply is processed dress The raw material grinding mill put uses as dry medium, gained sewage supply in pretreatment unit is processed to sewage-treatment plant.

Composition and the calorific value of pyrolysis gas are as shown in table 2:

Table 2 pyrolysis gas 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 (8)

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 outlet of sewer;
Heat accumulation type radiant tube revolving bed, described heat accumulation type radiant tube revolving bed has combustible gas entrance, combustion air inlet, has Machine garbage inlet, pyrolysis oil gas vent and pyrolytic carbon outlet, described combustion air inlet is connected with the outlet of described foul smell, described Organic waste entrance is connected with the outlet of described organic waste;
Gasification installation, described gasification installation has pyrolytic carbon entrance, combustible gas outlet and solid discharge, described pyrolytic carbon entrance Being connected with the outlet of described pyrolytic carbon, the outlet of described combustible gas is connected with described combustible gas entrance;
Cement kiln synergetic unit, described cement kiln synergetic unit has feed(raw material)inlet, waste gas outlet and cement exit, Described feed(raw material)inlet exports with described solid discharge and described inorganic refuse respectively and is connected;
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.
System the most according to claim 1, it is characterised in that farther include:
Sewage-treatment plant, described sewage-treatment plant has sewage inlet and treatment fluid outlet, and described sewage inlet is with described Outlet of sewer is connected.
System the most according to claim 1 and 2, it is characterised in that described pyrolysis oil gas vent and described TRT On fuel inlet be connected.
4. according to the system according to any one of claim 1-3, it is characterised in that the outlet of described boiler residual air and described water Raw material grinding mill in stall synergetic unit is connected.
5. use the method that the system of the process house refuse according to any one of Claims 1 to 4 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 sewage;
(2) described organic waste and described foul smell are supplied to described heat accumulation type radiant tube revolving bed, in order to described organic rubbish Rubbish carries out pyrolysis processing, obtains being pyrolyzed oil gas and pyrolytic carbon;
(3) supply of described pyrolytic carbon is carried out gasification process to described gasification installation, in order to obtain combustible gas and residue, and will Described combustible gas is back in described heat accumulation type radiant tube revolving bed make combustible gas and uses;
(4) described residue and described inorganic refuse are supplied extremely described cement kiln synergetic unit and carry out collaborative process, in order to Obtain waste gas and cement,
(5) described waste gas supply step (4) obtained carries out UTILIZATION OF VESIDUAL HEAT IN to described TRT, in order to obtain boiler Residual air.
Method the most according to claim 5, it is characterised in that farther include:
(6) described sewage step (1) obtained supplies to sewage-treatment plant, in order to obtain treatment fluid.
7. according to the method described in claim 5 or 6, it is characterised in that farther include:
(7) described pyrolysis oil gas supply step (2) obtained uses to described TRT as fuel.
8. according to the method according to any one of claim 5-7, it is characterised in that farther include:
(8) described boiler residual air supply step (5) obtained is made to the raw material grinding mill in described cement kiln synergetic unit Use for dry medium.
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FR2720479A1 (en) * 1994-05-30 1995-12-01 Inst Francais Du Petrole Process and installation of pyrolysis of waste having a preheating unit
CN1430016A (en) * 2002-12-24 2003-07-16 鞍山热能研究院 Slag incinerator for treating hazardous wastes and medical garbage and process method
CN203791331U (en) * 2014-03-24 2014-08-27 北京凯盛建材工程有限公司 System for synergistic treatment of municipal domestic waste in cement kiln
CN203923026U (en) * 2014-07-02 2014-11-05 南京凯盛国际工程有限公司 A kind of system of cement kiln synergic processing domestic refuse
CN104178226A (en) * 2014-08-14 2014-12-03 北京神雾环境能源科技集团股份有限公司 System and method for comprehensively recycling for household refuse pyrolysis
CN204544958U (en) * 2015-04-03 2015-08-12 坚构(北京)建筑技术有限公司 Cement rotary kiln associated treatment house refuse and energy comprehensive utilization system
CN104907311A (en) * 2015-05-15 2015-09-16 石家庄新华能源环保科技股份有限公司 Method and device for garbage processing water recovery and pure carbon production
CN105542808A (en) * 2016-02-22 2016-05-04 王志成 All-closed zero-emission household refuse energy regeneration and comprehensive utilization production process

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720479A1 (en) * 1994-05-30 1995-12-01 Inst Francais Du Petrole Process and installation of pyrolysis of waste having a preheating unit
FR2720479B1 (en) * 1994-05-30 1996-07-12 Inst Francais Du Petrole Method and installation for pyrolysis of waste having a preheating unit.
CN1430016A (en) * 2002-12-24 2003-07-16 鞍山热能研究院 Slag incinerator for treating hazardous wastes and medical garbage and process method
CN203791331U (en) * 2014-03-24 2014-08-27 北京凯盛建材工程有限公司 System for synergistic treatment of municipal domestic waste in cement kiln
CN203923026U (en) * 2014-07-02 2014-11-05 南京凯盛国际工程有限公司 A kind of system of cement kiln synergic processing domestic refuse
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CN204544958U (en) * 2015-04-03 2015-08-12 坚构(北京)建筑技术有限公司 Cement rotary kiln associated treatment house refuse and energy comprehensive utilization system
CN104907311A (en) * 2015-05-15 2015-09-16 石家庄新华能源环保科技股份有限公司 Method and device for garbage processing water recovery and pure carbon production
CN105542808A (en) * 2016-02-22 2016-05-04 王志成 All-closed zero-emission household refuse energy regeneration and comprehensive utilization production process

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