CN101561143A - Pretreatment method before power generating by incinerating municipal solid waste - Google Patents

Pretreatment method before power generating by incinerating municipal solid waste Download PDF

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Publication number
CN101561143A
CN101561143A CNA2009101074711A CN200910107471A CN101561143A CN 101561143 A CN101561143 A CN 101561143A CN A2009101074711 A CNA2009101074711 A CN A2009101074711A CN 200910107471 A CN200910107471 A CN 200910107471A CN 101561143 A CN101561143 A CN 101561143A
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China
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house refuse
garbage
garbage disposal
dry kiln
magnetic separation
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CNA2009101074711A
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Chinese (zh)
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陈敏恒
陈振良
何启东
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SHENZHEN HENGXIN TIANHUAN ENVIRONMENTAL PRODUCTION TECHNOLOGY Co Ltd
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SHENZHEN HENGXIN TIANHUAN ENVIRONMENTAL PRODUCTION TECHNOLOGY Co Ltd
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Priority to CNA2009101074711A priority Critical patent/CN101561143A/en
Publication of CN101561143A publication Critical patent/CN101561143A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste

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Abstract

A pretreatment method before power generating by incinerating municipal solid waste is used for processing the municipal solid waste into nontoxic incinerating matter and comprises the following steps of: firstly crushing and dehydrating the municipal solid waste, subsequently drying the municipal solid waste and treating the tail gas, and finally preparing a nontoxic incinerating matter by mixing the municipal solid waste with a certain proportion. After the pretreatment method is adopted, a large amount of municipal solid waste can be treated as nontoxic incinerating matter, the pollution of the municipal solid waste to the environment is reduced, the inconvenience of daily municipal solid waste treatment is also reduced, the space needed when the municipal solid waste is treated is reduced further and the defect that the piling of municipal solid waste causes pollution to the environment is solved excellently; furthermore, the pollution of the municipal solid waste to the environment is reduced, simultaneously, the municipal solid waste is prepared to the combustibles used for incineration power generation and the consumption of the resource is saved.

Description

Preprocess method before a kind of domestic garbage burning electricity generation
Technical field
The present invention relates to a kind of waste disposal method, be meant a kind of especially at first with house refuse pulverizing dehydration, then again house refuse is carried out drying and tail gas place, but at last the house refuse proportioning is manufactured the preprocess method before the domestic garbage burning electricity generation of incinerated matter of nonhazardous.
Background technology
Rubbish be human daily life and produce in the solid waste that produces because discharge rate is big, complicated component is various, gives to handle and utilization brings difficulty, as can not in time handling or deal with improperly, just pollutes the environment, and influences environmental sanitation.Garbage disposal will be removed rubbish rapidly exactly, and carries out harmless treatment, at last reasonable use in addition.
And along with the quickening of Urbanization in China, environmental problem is much accounted of gradually, and energy-saving and environmental protection become the development topic of China, and the processing of rubbish has received unprecedented concern in China.
Cross in the urbanization process at me, rubbish once was the burden of urban development as the product of city metabolism, and all there was the situation of garbage-surrounded city in many in the world cities.Now, rubbish is considered to " city mineral reserve " tool potentiality to be exploited, never exhausted, is " resource that mislays ".This is to going deep into and in-depth that rubbish is familiar with, also is the inevitable requirement of urban development.Therefore, the problem of garbage disposal has become the problem that the Chinese government, enterprise relatively pay close attention to.
At present, the trash processing way that extensively adopts both at home and abroad mainly contains following several:
1. landfill method: rubbish inserted in the ready hole cover compacting, make it that biology, physics, chemical change take place, decomposing organic matter reaches minimizing and innoxious purpose.But for a long time, the most of city of China all is to adopt air storage, fill out ditch and fill out mode such as hole and handle naturally, without any safeguard procedures, a large amount of garbage leachates are permeated the ground by the face of land, urban environment and underground water source are caused severe contamination, and therefore this trash processing way is eliminated gradually.In addition, garbage loading embeading must be taken a large amount of land resource, therefore, this trash processing way also is not suitable for urban applications in the land resource anxiety.
2. burning method: burning method is that rubbish is placed high temperature furnace, makes a kind of method of the wherein abundant oxidation of combustible component, and the heat of generation is used for generating and heating.But burn the new problem of having made: air pollution, heavy metal pollution, dioxin contamination, or the like.Waste incineration is " pollution transportation " in fact---and rubbish has been thrown away in the air, in fact made more environmental disaster.Thereby have only and carry out a series of purified treatment to burning the toxic and harmful that produces, this method could realize environmental protection.But the technical difficulty of poisonous and hazardous gas being carried out purified treatment is big, is unfavorable for promoting the use of.In addition, the early investment of burning disposal is bigger, because the market price of its incinerator and attached energy recovery equipment is too high relatively.
3. composting process: house refuse is piled up in heaps, be incubated 70 ℃, store, fermentation, the ability by microorganism in the rubbish is decomposed resolves into inorganic nutrients with organic matter.Through after the compost treatment, house refuse becomes health, tasteless humus.Both solved the outlet of rubbish, can reach purpose again in resource, but the consumer garbage compost amount is big, nutrient content is low, long-term use easily causes soil compaction and groundwater quality to degenerate, in addition, China's municipal refuse is mixed collection, and it is quite a lot of wherein to contain non-compost things such as plastics, glass, metal, therefore, in the early stage of this method of employing, must be specially to collection and the rubbish that comes is classified, fall non-compost things such as plastics, glass, metal with screening, therefore, cause using that this method disposal of refuse efficient is low, yield rate is low, thereby cause the waste reduction effect bad.
Indulge the above, above-mentioned various waste disposal methods, owing to there are these various shortcomings, and the current and following society of incompatibility China is to the development topic of energy-saving and environmental protection, therefore, develop and a kind ofly can make waste reductionization, innoxious, the technology of garbage disposal that can also rationally utilize rubbish, seem imperative.
Summary of the invention
The invention provides the preceding preprocess method of a kind of domestic garbage burning electricity generation, it is at first by pulverizing dehydration with house refuse, then again house refuse is carried out drying and tail gas place, but at last the house refuse proportioning is manufactured the incinerated matter of nonhazardous, and reasonably house refuse is utilized, reduced the discharging of Litter, reduced house refuse society and harm that environment caused.
To achieve these goals, the technical solution used in the present invention is: the preprocess method before a kind of domestic garbage burning electricity generation, it comprises the steps:
The first step, house refuse are pulverized the water smoking;
At first, house refuse is transported in the discharging hall, then this house refuse is poured onto in the garbage disposal workshop by cram packer, and in this garbage disposal workshop to this house refuse pulverize, magnetic separation and processed.
Wherein, the inlet in this discharging hall goes out to be provided with air door, this air door work produces brattice, and then make the smell in this discharging hall can not be distributed to this outside, discharging hall, this discharging hall is connected with this garbage disposal workshop, and between this discharging hall and this garbage disposal workshop, be provided with discharging hall envelope curtain machine, this discharging hall envelope curtain machine will keep apart between this discharging hall and this garbage-treatment car to come, this discharging hall envelope curtain machine is opened when this cram packer is toppled over this house refuse in this garbage disposal workshop when, this discharging hall envelope curtain machine sealing of all the other times.
Be provided with extractor fan in this garbage disposal workshop, this extractor fan constantly extracts the air in this garbage disposal workshop, make this garbage disposal workshop keep negative pressure state, make the smell in this garbage disposal workshop can not leak to its outside, that is to say that the atmospheric pressure value in this garbage disposal workshop is littler than normal atmosphere (An) value.
This garbage disposal workshop further is provided with the first rubbish storage pool and the second rubbish storage pool, wherein, this first rubbish storage pool and this discharging hall are adjacent, and this house refuse of being come by this cram packer transportation at first is poured onto in this first rubbish storage pool.
This top, garbage disposal workshop is provided with first grab bucket, second grab bucket, the first garbage dewatering magnetic separation disintegrating machine, second garbage dewatering magnetic separation disintegrating machine and the rotary screen, wherein, this first garbage dewatering magnetic separation disintegrating machine and this rotary screen are successively set between this first rubbish storage pool and this second rubbish storage pool.
This house refuse that is poured onto in this first rubbish storage pool is at first progressively grasped to this first garbage dewatering magnetic separation disintegrating machine by this first grab bucket, and by this first garbage dewatering magnetic separation disintegrating machine this house refuse is carried out that extrusion dehydration is pulverized and magnetic separation, make this house refuse be pulverized dehydration and magneticly elect the metal species material in this house refuse certainly.
Then, this house refuse is transported in this rotary screen, and between this first garbage dewatering magnetic separation disintegrating machine and this rotary screen, be disposed with magnetic separation cloth distributor, magnetic separator, magnetic separator belt and branch screening feed belt, be transported in the process of this rotary screen in this house refuse, this house refuse is passed through the cloth of this magnetic separation cloth distributor successively, the magnetic separation of this magnetic separator is transferred in this rotary screen by this branch screening feed belt at last, this rotary screen screens this house refuse makes wherein this less house refuse of particle sift out the formation screenings in this rotary screen, and remaining this house refuse is poured onto in this second rubbish storage pool.
This house refuse that is poured onto in this second rubbish storage pool is progressively grasped to this second garbage dewatering magnetic separation disintegrating machine by this second grab bucket, and by this second garbage dewatering magnetic separation disintegrating machine this house refuse is carried out extrusion dehydration and pulverize and magnetic separation, and discharge in this garbage disposal workshop certainly.
Second step, house refuse drying and vent gas treatment stage;
This house refuse of discharging in this garbage disposal workshop certainly in the first step is by the distributing device cloth and transfer in the dry kiln as mentioned above, this dry kiln is connected with the chain grate furnace, it is dry with hot gas and transfer in this dry kiln in order to this house refuse in dry this dry kiln that this chain grate furnace provides, this dry kiln also is connected with exhaust treatment system, and this exhaust treatment system is in order to handle the waste gas that this dry kiln produced;
Wherein, this dry kiln comprises kiln body and some conveyer belts, and some these conveyer belts are successively set in this kiln body, and two near these conveyer belts adjacent one another are are corresponding end to end, further, each this conveyer belt all is an angle with level, and this angle is an acute angle.
This chain grate furnace comprises hot gas feeding pipe, body of heater, hot gas blending bin and gets wind apparatus, wherein, this hot gas feeding pipe transfers in this dry kiln in order to the hot gas that this chain grate furnace is produced, this hot gas feeding pipe has some gas outlets, some these gas outlets are evenly distributed on this dry kiln, this body of heater combustion fuel produces heat and also adds hot-air, and then heated air is transported in this hot gas blending bin and is mixed to rated temperature with the air of getting wind apparatus and providing in this hot gas blending bin and transfers in this dry kiln by this hot gas feeding pipe.
Further, this is got wind apparatus and is connected with this garbage disposal workshop, and this is got the air that wind apparatus transfers in this hot gas blending bin and derives from this garbage disposal workshop.
This exhaust treatment system is connected with this dry kiln, and it comprises waste gas transfer conduit, cyclone dust collectors, deacidification scrubbing tower, denitrogenate scrubbing tower and active carbon boiling filtration tank, the cloth bag soot blower.
Wherein, this waste gas transfer conduit is connected with this dry kiln, transfer in this exhaust treatment system in order to the waste gas that will be produced in this dry kiln, the waste gas that is transferred in this exhaust treatment system by this waste gas transfer conduit at first enters dedusting in these cyclone dust collectors, then enter depickling in this deacidification scrubbing tower, enter this afterwards and denitrogenate denitrogenation in the scrubbing tower, enter this active carbon boiling filtration tank at last and filter and this cloth bag soot blower dedusting of process, and then finish whole waste gas treatment process.
This deacidification scrubbing tower and this are denitrogenated scrubbing tower and are connected to make except that acid solution and denitrogenate liquid and can reach the purpose that recycles with removing the acid solution regulator cubicle and denitrogenate the liquid regulator cubicle respectively.
The 3rd step, house refuse proportioning formative stage;
As mentioned above in the cloth bag soot blower that this house refuse of this dry kiln drying of process in second step transfers to by transmission belt, and this house refuse is carried out dedusting once more by this cloth bag soot blower, then be delivered in the pulverizer and enter proportion unit after pulverizing once more and prepare burden, this house refuse enters stirrer for mixing and stirs afterwards, enters forming unit at last and carries out forming processes to finish the preliminary treatment before the whole domestic garbage burning electricity generation;
Wherein, this cloth bag soot blower comprises hair-dryer, first transmission belt and second transmission belt, this hair-dryer is connected on this cloth bag soot blower and in the inner chamber of this cloth bag soot blower and dries, this first transmission belt and this second transmission belt are arranged in the inner chamber of this cloth bag soot blower, and it is gapped at interval between this first transmission belt 612 and this second transmission belt, the blowing direction of this hair-dryer is corresponding with this gap, further, this first transmission belt and this second transmission belt and level are the acute angle angle.
This pulverizer lower end is connected with induced-draught fan, and will draw and transfer in this proportion unit through this household garbage particles that this pulverizer is pulverized by this induced-draught fan.
This proportion unit comprises cyclone dust collectors, some additive storage tanks and mixer, this house refuse that enters into this proportion unit at first enters these cyclone dust collectors and carries out dust removal process, this exit, cyclone dust collectors below is provided with the raw material belt and claims, claim to take by weighing this house refuse of specified weight immediately and transmit by this raw material belt, some these additive storage tanks order successively are provided with, and the exit, below of each this additive storage tank all is provided with the additive belt and claims to take by weighing the additive of specified weight immediately and transmit, and this house refuse and various additive progressively enter into this mixer and mix.
This house refuse that this mixer of aforesaid process mixes and the mixture of various additives are transferred to and carry out forming processes in this forming unit to finish the preliminary treatment before the whole domestic garbage burning electricity generation; This forming unit comprises some make-up machines, is processed to the burning electricity generation coal through this house refuse of this forming unit moulding and the mixture of various additives, to finish whole pretreatment process.
Fuel that it should be noted that as mentioned above this body of heater of this chain grate furnace in second step here comprises this screenings that sifts out in this rotary screen certainly in the first step as mentioned above and the end slag that excretes in the 3rd step as mentioned above in the scavenge port of the below of this cloth bag soot blower.
Beneficial effect of the present invention is: because method of the present invention is at first pulverized dehydration with house refuse, then again house refuse is carried out drying and tail gas place, but at last the house refuse proportioning is manufactured the incinerated matter of nonhazardous, after adopting method of the present invention, but can in large quantities domestic rubbish disposal be become the incinerated matter of nonhazardous, reduced the pollution of house refuse to environment, and the inconvenience when having reduced daily processing house refuse, needed space when further having reduced the processing house refuse.
Description of drawings
Fig. 1 is a structure FB(flow block) of the present invention;
Fig. 2 is a first step structured flowchart of the present invention;
Fig. 3 is dry kiln and a chain grate furnace syndeton block diagram in second step of the present invention;
Fig. 4 is dry kiln and an exhaust treatment system syndeton block diagram in second step of the present invention;
Fig. 5 is the 3rd a step structured flowchart of the present invention.
The specific embodiment
Shown in Fig. 1 to 5: the preprocess method before a kind of domestic garbage burning electricity generation, it comprises the steps:
As shown in Figure 1, 2: the first step, house refuse are pulverized the water smoking;
At first, house refuse A is transported in the discharging hall 10, then this house refuse A is poured onto in the garbage disposal workshop 20 by cram packer C, and in this garbage disposal workshop 20 to this house refuse A pulverize, magnetic separation and processed.
Wherein, the inlet in this discharging hall 10 goes out to be provided with air door 11, these air door 11 work produce brattice, and then make the smell in this discharging hall 10 can not be distributed to this 10 outsides, discharging hall, this discharging hall 10 is connected with this garbage disposal workshop 20, and between this discharging hall 10 and this garbage disposal workshop 20, be provided with discharging hall envelope curtain machine 12, this discharging hall is sealed curtain machine 12 this discharging hall 10 is kept apart with this garbage disposal workshop 20, this discharging hall envelope curtain machine 12 is opened when this cram packer C topples over this house refuse A in this garbage disposal workshop 20 when, these discharging hall envelope curtain machine 12 sealings of all the other times.
Be provided with extractor fan 21 in this garbage disposal workshop 20, this extractor fan 21 constantly extracts the air in this garbage disposal workshop 20, make this garbage disposal workshop 20 keep negative pressure state, make the smell in this garbage disposal workshop 20 can not leak to its outside, that is to say that the atmospheric pressure value in this garbage disposal workshop 20 is littler than normal atmosphere (An) value.
This garbage disposal workshop 20 further is provided with the first rubbish storage pool 22 and the second rubbish storage pool 23, wherein, this first rubbish storage pool 22 is adjacent with this discharging hall 10, and this house refuse A that is come by this cram packer C transportation at first is poured onto in this first rubbish storage pool 22.
These 20 tops, garbage disposal workshop are provided with first grab bucket, 241, second grab bucket, 242, the first garbage dewatering magnetic separation disintegrating machine 251, second garbage dewatering magnetic separation disintegrating machine 252 and the rotary screen 26, wherein, this first garbage dewatering magnetic separation disintegrating machine 251 and this rotary screen 26 are successively set between this first rubbish storage pool 22 and this second rubbish storage pool 23.
This house refuse A that is poured onto in this first rubbish storage pool 22 is at first progressively grasped to this first garbage dewatering magnetic separation disintegrating machine 251 by this first grab bucket 241, and undertaken by 251 pairs of these house refuses of this first garbage dewatering magnetic separation disintegrating machine A that extrusion dehydration is pulverized and magnetic separation, make this house refuse A be pulverized dehydration and magneticly elect the metal species material among this house refuse A certainly.
Then, this house refuse A is transported in this rotary screen 26, and between this first garbage dewatering magnetic separation disintegrating machine 251 and this rotary screen 26, be disposed with magnetic separation cloth distributor 271, magnetic separator 272, magnetic separator belt 273 and branch screening feed belt 274, be transported in the process of this rotary screen 26 at this house refuse A, this house refuse A passes through the cloth of this magnetic separation cloth distributor 271 successively, the magnetic separation of this magnetic separator 272 is transferred in this rotary screen 26 by this branch screening feed belt 274 at last, this rotary screen 26 this house refuse of screening A make wherein less this house refuse A of particle sift out in this rotary screen 26 and form screenings B, and remaining this house refuse A is poured onto in this second rubbish storage pool 23.
This house refuse A that is poured onto in this second rubbish storage pool 23 is progressively grasped to this second garbage dewatering magnetic separation disintegrating machine 252 by this second grab bucket 242, and carry out extrusion dehydration by 252 pairs of these house refuses of this second garbage dewatering magnetic separation disintegrating machine A and pulverize and magnetic separation, and discharge in this garbage disposal workshop 20 certainly.
As shown in Figures 1 to 3: second step, house refuse drying and vent gas treatment stage;
This house refuse A that discharges in this garbage disposal workshop 20 certainly in the first step is by distributing device 31 clothes and transfer in the dry kiln 30 as mentioned above, this dry kiln 30 is connected with chain grate furnace 40, it is dry with hot gas and transfer in this dry kiln 30 in order to this house refuse A in dry this dry kiln 30 that this chain grate furnace 40 provides, this dry kiln 30 also is connected with exhaust treatment system 50, and this exhaust treatment system 50 is handled in order to the waste gas that this dry kiln 30 is produced;
Wherein, this dry kiln 30 comprises kiln body 32 and some conveyer belts 33, and some these conveyer belts 33 are successively set in this kiln body 32, and two near these conveyer belts 33 adjacent one another are are corresponding end to end, further, each this conveyer belt 33 all is an angle with level, and this angle is an acute angle.
This chain grate furnace 40 comprises hot gas feeding pipe 41, body of heater 42, hot gas blending bin 43 and get wind apparatus 44, wherein, this hot gas feeding pipe 41 transfers in this dry kiln 30 in order to the hot gas that this chain grate furnace 40 is produced, this hot gas feeding pipe 41 has some gas outlets 411, some these gas outlets 411 are evenly distributed on this dry kiln 30, this body of heater 42 combustion fuel D produce heat and also add hot-air, and then heated air is transported in this hot gas blending bin 43 and is mixed to rated temperature with the air of getting wind apparatus 44 and being provided in this hot gas blending bin 43 and transfers in this dry kiln 30 by this hot gas feeding pipe 41.
Further, this is got wind apparatus 44 and is connected with this garbage disposal workshop 20, and this is got the air that wind apparatus 44 transfers in this hot gas blending bin 43 and derives from this garbage disposal workshop 20.
Shown in Fig. 1,4: this exhaust treatment system 50 is connected with this dry kiln 30, and it comprises waste gas transfer conduit 51, cyclone dust collectors 52, deacidification scrubbing tower 53, denitrogenate scrubbing tower 54 and active carbon boiling filtration tank 55, cloth bag soot blower 56.
Wherein, this waste gas transfer conduit 51 is connected with this dry kiln 30, transfer in this exhaust treatment system 50 in order to the waste gas that will be produced in this dry kiln 30, the waste gas that is transferred in this exhaust treatment system 50 by this waste gas transfer conduit 51 at first enters dedusting in these cyclone dust collectors 52, then enter depickling in this deacidification scrubbing tower 53, enter this afterwards and denitrogenate denitrogenation in the scrubbing tower 54, enter this active carbon boiling filtration tank 55 at last and filter and these cloth bag soot blower 56 dedustings of process, and then finish whole waste gas treatment process.
This deacidification scrubbing tower 53 and this are denitrogenated scrubbing tower 54 and are connected to make except that acid solution and denitrogenate liquid and can reach the purpose that recycles with removing acid solution regulator cubicle 531 and denitrogenate liquid regulator cubicle 541 respectively.
Shown in Fig. 1,3,5: the 3rd step, house refuse proportioning formative stage;
As mentioned above in the cloth bag soot blower 61 that this house refuse A of these dry kiln 30 dryings of process in second step transfers to by transmission belt, and carry out dedusting once more by 61 pairs of these house refuses of this cloth bag soot blower A, then be delivered in the pulverizer 62 and enter proportion unit 70 after pulverizing once more and prepare burden, this house refuse A enters in the mixer 63 to mix and stirs afterwards, enters forming unit 80 at last and carries out forming processes to finish the preliminary treatment before the whole domestic garbage burning electricity generation;
Wherein, this cloth bag soot blower 61 comprises hair-dryer 611, first transmission belt 612 and second transmission belt 613, this hair-dryer 611 is connected on this cloth bag soot blower 61 and in the inner chamber of this cloth bag soot blower 61 and dries, this first transmission belt 612 and this second transmission belt 613 are arranged in the inner chamber of this cloth bag soot blower 61, and it is gapped at interval between this first transmission belt 612 and this second transmission belt 613, the blowing direction of this hair-dryer 611 is corresponding with this gap, further, this first transmission belt 612 and this second transmission belt 613 are the acute angle angle with level.
These pulverizer 62 lower ends are connected with induced-draught fan 621, and will draw and transfer in this proportion unit 70 through this house refuse A particle that this pulverizer 62 is pulverized by this induced-draught fan 621.
This proportion unit 70 comprises cyclone dust collectors 71, some additive storage tanks 72 and this mixer 63, this house refuse A that enters into this proportion unit 70 at first enters these cyclone dust collectors 71 and carries out dust removal process, this exit, cyclone dust collectors 71 below is provided with the raw material belt and claims 711, claim 711 to take by weighing this house refuse A of specified weight immediately and transmit by this raw material belt, some these additive storage tanks 72 order successively are provided with, and the exit, below of each this additive storage tank 72 all is provided with the additive belt and claims 721 to take by weighing the additive of specified weight immediately and transmit, and this house refuse A and various additive progressively enter into this mixer 63 and mix.
This house refuse A that this mixer 63 of aforesaid process mixes and the mixture of various additives are transferred to and carry out forming processes in this forming unit 80 to finish the preliminary treatment before the whole domestic garbage burning electricity generation; This forming unit 80 comprises some make-up machines 81, is processed to the burning electricity generation coal through this house refuse A of these forming unit 80 moulding and the mixture of various additives, to finish whole pretreatment process.
Fuel D that it should be noted that as mentioned above this body of heater 42 of this chain grate furnace 40 in second step here comprises this screenings B that sifts out in this rotary screen 26 certainly in the first step as mentioned above and the end slag that excretes in the 3rd step as mentioned above in the scavenge port of the below of this cloth bag soot blower 61.

Claims (5)

1. the preprocess method before the domestic garbage burning electricity generation is characterized in that: it comprises the steps,
The first step, house refuse are pulverized the water smoking;
Secondly at first, house refuse is transported in the discharging hall,, this house refuse is poured onto in the garbage disposal workshop by cram packer, last, in this garbage disposal workshop to this house refuse pulverize, magnetic separation and processed;
Wherein, the inlet in this discharging hall goes out to be provided with air door, this air door work produces brattice, and then make the smell in this discharging hall can not be distributed to this outside, discharging hall, this discharging hall is connected with this garbage disposal workshop, and between this discharging hall and this garbage disposal workshop, be provided with discharging hall envelope curtain machine, be provided with extractor fan in this garbage disposal workshop
This garbage disposal workshop further is provided with the first rubbish storage pool and the second rubbish storage pool, wherein, this first rubbish storage pool and this discharging hall are adjacent, this top, garbage disposal workshop is provided with first grab bucket, second grab bucket, the first garbage dewatering magnetic separation disintegrating machine, second garbage dewatering magnetic separation disintegrating machine and the rotary screen, wherein, this first garbage dewatering magnetic separation disintegrating machine and this rotary screen are successively set between this first rubbish storage pool and this second rubbish storage pool
Then, this house refuse is transported in this rotary screen, and between this first garbage dewatering magnetic separation disintegrating machine and this rotary screen, be disposed with magnetic separation cloth distributor, magnetic separator, magnetic separator belt and branch screening feed belt, be transported in the process of this rotary screen in this house refuse, this house refuse is passed through the cloth of this magnetic separation cloth distributor successively, the magnetic separation of this magnetic separator is transferred in this rotary screen by this branch screening feed belt at last, this rotary screen screens this house refuse makes wherein this less house refuse of particle sift out the formation screenings in this rotary screen, remaining this house refuse is poured onto in this second rubbish storage pool
This house refuse that is poured onto in this second rubbish storage pool is progressively grasped to this second garbage dewatering magnetic separation disintegrating machine by this second grab bucket, and by this second garbage dewatering magnetic separation disintegrating machine this house refuse is carried out extrusion dehydration and pulverize and magnetic separation, and discharge in this garbage disposal workshop certainly
Second step, house refuse drying and vent gas treatment stage;
This house refuse of discharging in this garbage disposal workshop certainly in the first step is by the distributing device cloth and transfer in the dry kiln as mentioned above, this dry kiln is connected with the chain grate furnace, it is dry with hot gas and transfer in this dry kiln in order to this house refuse in dry this dry kiln that this chain grate furnace provides, this dry kiln also is connected with exhaust treatment system, and this exhaust treatment system is in order to handle the waste gas that this dry kiln produced;
Wherein, this dry kiln comprises kiln body and some conveyer belts, and some these conveyer belts are successively set in this kiln body, and two near these conveyer belts adjacent one another are are corresponding end to end, and further, each this conveyer belt all is an angle with level, and this angle is an acute angle,
This chain grate furnace comprises the hot gas feeding pipe, body of heater, hot gas blending bin and get wind apparatus, wherein, this hot gas feeding pipe transfers in this dry kiln in order to the hot gas that this chain grate furnace is produced, this hot gas feeding pipe has some gas outlets, some these gas outlets are evenly distributed on this dry kiln, this body of heater combustion fuel produces heat and adds hot-air, then heated air is transported in this hot gas blending bin and is mixed to rated temperature with the air of getting wind apparatus and providing in this hot gas blending bin and transfers in this dry kiln by this hot gas feeding pipe
Further, this is got wind apparatus and is connected with this garbage disposal workshop, and this is got the air that wind apparatus transfers in this hot gas blending bin and derives from this garbage disposal workshop,
This exhaust treatment system is connected with this dry kiln, and it comprises waste gas transfer conduit, cyclone dust collectors, deacidification scrubbing tower, denitrogenate scrubbing tower and active carbon boiling filtration tank, the cloth bag soot blower,
Wherein, this waste gas transfer conduit is connected with this dry kiln, transfer in this exhaust treatment system in order to the waste gas that will be produced in this dry kiln, the waste gas that is transferred in this exhaust treatment system by this waste gas transfer conduit at first enters dedusting in these cyclone dust collectors, then enter depickling in this deacidification scrubbing tower, enter this afterwards and denitrogenate denitrogenation in the scrubbing tower, enter this active carbon boiling filtration tank at last and filter and this cloth bag soot blower dedusting of process, and then finish whole waste gas treatment process
This deacidification scrubbing tower and this are denitrogenated scrubbing tower and are connected to make except that acid solution and denitrogenate liquid and can reach the purpose that recycles with removing the acid solution regulator cubicle and denitrogenate the liquid regulator cubicle respectively;
The 3rd step, house refuse proportioning formative stage;
As mentioned above in the cloth bag soot blower that this house refuse of this dry kiln drying of process in second step transfers to by transmission belt, and this house refuse is carried out dedusting once more by this cloth bag soot blower, then be delivered in the pulverizer and enter proportion unit after pulverizing once more and prepare burden, this house refuse enters stirrer for mixing and stirs afterwards, enters forming unit at last and carries out forming processes to finish the preliminary treatment before the whole domestic garbage burning electricity generation;
Wherein, this cloth bag soot blower comprises hair-dryer, first transmission belt and second transmission belt, this hair-dryer is connected on this cloth bag soot blower and in the inner chamber of this cloth bag soot blower and dries, and this first transmission belt and this second transmission belt are arranged in the inner chamber of this cloth bag soot blower
This pulverizer lower end is connected with induced-draught fan, and will draw and transfer in this proportion unit through this household garbage particles that this pulverizer is pulverized by this induced-draught fan,
This proportion unit comprises cyclone dust collectors, some additive storage tanks and mixer, some these additive storage tanks order successively are provided with, and the exit, below of each this additive storage tank all is provided with the additive belt and claims to take by weighing the additive of specified weight immediately and transmit, this house refuse and various additive progressively enter into this mixer and mix
This house refuse that this mixer of aforesaid process mixes and the mixture of various additives are transferred to and carry out forming processes in this forming unit to finish the preliminary treatment before the whole domestic garbage burning electricity generation; This forming unit comprises some make-up machines, is processed to the burning electricity generation coal through this house refuse of this forming unit moulding and the mixture of various additives, to finish whole pretreatment process.
2. the preprocess method before a kind of domestic garbage burning electricity generation as claimed in claim 1, it is characterized in that: and gapped at interval between this first transmission belt and this second transmission belt, the blowing direction of this hair-dryer is corresponding with this gap, further, this first transmission belt and this second transmission belt and level are the acute angle angle.
3. the preprocess method before a kind of domestic garbage burning electricity generation as claimed in claim 1, it is characterized in that: this house refuse that enters into this proportion unit at first enters these cyclone dust collectors and carries out dust removal process, this exit, cyclone dust collectors below is provided with the raw material belt and claims, claims to take by weighing this house refuse of specified weight immediately and transmit by this raw material belt.
4. as the preprocess method before claim 2 or the 3 described a kind of domestic garbage burning electricity generations, it is characterized in that: described this extractor fan constantly extracts the air in this garbage disposal workshop, make this garbage disposal workshop keep negative pressure state, make the smell in this garbage disposal workshop can not leak to its outside, that is to say that the atmospheric pressure value in this garbage disposal workshop is littler than normal atmosphere (An) value.
5. the preprocess method before a kind of domestic garbage burning electricity generation as claimed in claim 4 is characterized in that: the fuel of this body of heater of this chain grate furnace comprises this screenings that sifts out in this rotary screen certainly in the first step as mentioned above and the end slag that excretes in the 3rd step as mentioned above in described second step in the scavenge port of the below of this cloth bag soot blower.
CNA2009101074711A 2009-05-22 2009-05-22 Pretreatment method before power generating by incinerating municipal solid waste Pending CN101561143A (en)

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Cited By (17)

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Publication number Priority date Publication date Assignee Title
CN101949543A (en) * 2010-09-17 2011-01-19 杨长银 Household garbage treatment system
CN102091707A (en) * 2010-11-30 2011-06-15 深圳市鼎铸环保技术有限公司 Waste storage tank for dehydrating waste
CN102350428A (en) * 2011-05-18 2012-02-15 何永峰 Equipment for producing composite dry powder fuel used for coal-fired power plant generation with municipal domestic waste and industrialization method thereof
CN102434886A (en) * 2011-11-02 2012-05-02 天津德为环保工程设备有限公司 Agriculture and forestry plant waste high-efficient burning generating system
CN102563659A (en) * 2012-03-02 2012-07-11 唐伟民 Refuse incineration power generation process and refuse incineration power generation equipment
CN102788352A (en) * 2012-07-20 2012-11-21 浙江环兴机械有限公司 Moveable integrated device for processing aged garbage and processing method thereof
CN103662514A (en) * 2013-11-07 2014-03-26 潘老省 Dual-pool garbage storage library and method for disposing garbage
CN103900090A (en) * 2014-03-10 2014-07-02 深圳市宇力科技有限公司 Environment-friendly device matched with efficient and pollution-free refuse incineration power generation and using technology thereof
CN104791802A (en) * 2015-04-14 2015-07-22 李轼 Integrated set device for garbage derived fuel preparing and incinerating power generation
CN105414014A (en) * 2015-12-17 2016-03-23 洛阳瑞临煤炭物资有限公司 Dustless coal screening system
CN106090930A (en) * 2016-06-06 2016-11-09 珠海市云筒环保科技有限公司 Refuse pyrolysis processing system and method
CN106111670A (en) * 2016-07-11 2016-11-16 启迪桑德环境资源股份有限公司 One way of life waste incineration and generating electricity preprocess method and system
CN106642146A (en) * 2017-02-27 2017-05-10 北京中技圣火环保科技有限公司 Garbage air drying treatment system and method
CN108800139A (en) * 2018-05-03 2018-11-13 陕西理工大学 A kind of house refuse full-automation processing system and method
CN109340756A (en) * 2018-09-26 2019-02-15 何阳 A kind of plant ash production collection device with pre- heat function
CN111322619A (en) * 2020-02-28 2020-06-23 海诺尔(宜宾)环保发电有限公司 Waste incineration power generation process
CN113137609A (en) * 2021-04-02 2021-07-20 莆田市圣元环保电力有限公司 Waste residue cleaning device for waste incineration power generation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949543A (en) * 2010-09-17 2011-01-19 杨长银 Household garbage treatment system
CN102091707A (en) * 2010-11-30 2011-06-15 深圳市鼎铸环保技术有限公司 Waste storage tank for dehydrating waste
CN102350428A (en) * 2011-05-18 2012-02-15 何永峰 Equipment for producing composite dry powder fuel used for coal-fired power plant generation with municipal domestic waste and industrialization method thereof
CN102350428B (en) * 2011-05-18 2014-02-26 何永峰 Equipment for producing composite dry powder fuel used for coal-fired power plant generation with municipal domestic waste and industrialization method thereof
CN102434886A (en) * 2011-11-02 2012-05-02 天津德为环保工程设备有限公司 Agriculture and forestry plant waste high-efficient burning generating system
CN102563659A (en) * 2012-03-02 2012-07-11 唐伟民 Refuse incineration power generation process and refuse incineration power generation equipment
CN102563659B (en) * 2012-03-02 2015-02-25 唐伟民 Refuse incineration power generation process and refuse incineration power generation equipment
CN102788352B (en) * 2012-07-20 2014-12-10 浙江环兴机械有限公司 Moveable integrated device for processing aged garbage and processing method thereof
CN102788352A (en) * 2012-07-20 2012-11-21 浙江环兴机械有限公司 Moveable integrated device for processing aged garbage and processing method thereof
CN103662514B (en) * 2013-11-07 2015-10-28 潘老省 The method of a kind of pair of pond garbage storage tank and garbage disposal
CN103662514A (en) * 2013-11-07 2014-03-26 潘老省 Dual-pool garbage storage library and method for disposing garbage
CN103900090B (en) * 2014-03-10 2017-02-08 深圳市宇力科技有限公司 Environment-friendly device matched with efficient and pollution-free refuse incineration power generation and using technology thereof
CN103900090A (en) * 2014-03-10 2014-07-02 深圳市宇力科技有限公司 Environment-friendly device matched with efficient and pollution-free refuse incineration power generation and using technology thereof
CN104791802A (en) * 2015-04-14 2015-07-22 李轼 Integrated set device for garbage derived fuel preparing and incinerating power generation
CN105414014A (en) * 2015-12-17 2016-03-23 洛阳瑞临煤炭物资有限公司 Dustless coal screening system
CN106090930A (en) * 2016-06-06 2016-11-09 珠海市云筒环保科技有限公司 Refuse pyrolysis processing system and method
CN106111670A (en) * 2016-07-11 2016-11-16 启迪桑德环境资源股份有限公司 One way of life waste incineration and generating electricity preprocess method and system
CN106642146A (en) * 2017-02-27 2017-05-10 北京中技圣火环保科技有限公司 Garbage air drying treatment system and method
CN108800139A (en) * 2018-05-03 2018-11-13 陕西理工大学 A kind of house refuse full-automation processing system and method
CN108800139B (en) * 2018-05-03 2020-07-14 陕西理工大学 Full-automatic treatment system and method for household garbage
CN109340756A (en) * 2018-09-26 2019-02-15 何阳 A kind of plant ash production collection device with pre- heat function
CN111322619A (en) * 2020-02-28 2020-06-23 海诺尔(宜宾)环保发电有限公司 Waste incineration power generation process
CN113137609A (en) * 2021-04-02 2021-07-20 莆田市圣元环保电力有限公司 Waste residue cleaning device for waste incineration power generation
CN113137609B (en) * 2021-04-02 2022-08-26 莆田市圣元环保电力有限公司 Waste residue cleaning device for waste incineration power generation

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