CN103204642A - Novel dry-process cement kiln household garbage incineration method - Google Patents

Novel dry-process cement kiln household garbage incineration method Download PDF

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CN103204642A
CN103204642A CN2013101127382A CN201310112738A CN103204642A CN 103204642 A CN103204642 A CN 103204642A CN 2013101127382 A CN2013101127382 A CN 2013101127382A CN 201310112738 A CN201310112738 A CN 201310112738A CN 103204642 A CN103204642 A CN 103204642A
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domestic refuse
domestic
household garbage
cement
kiln
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CN103204642B (en
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王新华
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GUANGXI ZHONGMENG SHIJI ENVIRONMENTAL PROTECTION CONSULTING CO Ltd
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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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121Energy efficiency measures, e.g. improving or optimising the production methods

Abstract

The invention discloses a novel dry-process cement kiln household garbage incineration method. The novel dry-process cement kiln household garbage incineration method comprises the following steps of: crushing the household garbage and adding the crushed household garbage to fermentation microflora; evaporating and dehydrating part of the moisture of the crushed household garbage by utilizing an aging effect of the fermentation microflora to the household garbage and the heat generated in the aging process; magnetically separating metals; feeding the household garbage to a decomposing furnace by a metering feeder at the junction of a tertiary air pipe port and the decomposing furnace along the tangential direction of the tertiary air pipe; and quickly scattering, igniting and roasting the household garbage in the kiln by virtue of tertiary air. The novel dry-process cement kiln household garbage incineration method can be used for simplifying a separation process, achieving a high metal separation rate, fermenting, ageing and dehydrating and reducing the energy loss in the incineration process, so that the problem that the adhesion huddles cannot be quickly scattered and combusted after being fed to the cement kiln decomposing furnace due to extremely high moisture content is solved, and therefore, the quick inclination rate is ensured. The whole process is completed by one-step feeding without generating secondary pollution, so that the full reduction, the resource utilization, the innoxious disposal, the full treatment and the zero emission of the household garbage are really realized, and therefore, the novel dry-process cement kiln household garbage incineration method has better economic benefits, social benefits and ecological benefits.

Description

The method of new type nonaqueous cement kiln burning domestic garbage
Technical field:
The invention belongs to the technology of garbage disposal field, relate to a kind of life refuse processing method, particularly relate to a kind of method of new type nonaqueous cement kiln burning domestic garbage.
Background technology:
More than 660 in China city, the annual domestic refuse that produces is about 1.8 hundred million tons is 86.9% by National urban level of harmless treatment rate of life waste in 2010.At present, mainly contain landfill, compost, three kinds of methods of burning in the city house refuse treatment method.Restrict owing to there is the factor that the project construction cost is high and running cost is big in incineration technology, factor affecting production instabilities such as channel are used and sold in the compost treatment existence because of season, product, and China mainly relies on the consumer waste filling and embedding processing at present.Along with the continuous quickening of China's urbanization degree and the increase year by year of domestic refuse generation, seeking the domestic rubbish disposal technology completely of improving has been the direction that the various places emphasis is sought.Consumer waste incineration is handled and mainly contained following advantage: (1) minimizing degree height, domestic refuse volume after burning reduces 80-90%; (2) resource utilization degree height, domestic refuse is through burning heat energy utilization generating or the heat supply that produces; (3) innoxious degree height, domestic refuse is through burning, and bacterium is gone out and removes, and burns the obnoxious flavour qualified discharge after the vent gas treatment facility is handled that produces.Consumer waste incineration possesses minimizing preferably, resource utilization and innoxious because of it, become the mode that various places are in recent years mainly developed, through the development of last decade, China's consumer waste incineration processing rate (the burning amount accounts for the per-cent of domestic refuse generation) from 2.90% of calendar year 2001 be increased to 2011 24.04%.According to " 12 " planning, China's to 2015 year national application of city life garbage burning disposal facility ability reaches more than 35% of harmless treatment total capacity, and wherein the eastern region reaches more than 48%.
The consumer waste incineration technology mainly contains grate furnace incineration technology and fluidized combustion technology:
1, grate incinerator.Municipal wastes is transported to the garbage pool of incineration plant, hang in hopper through grabbing, enter burner hearth, through super-dry, burning, 3 stages of after-flame, under the combustion-supporting condition of excess air, rubbish stirs in fire grate, fully burning.The slag of after-flame transports landfill outside the factory to after the slag bath cooling.This technological merit is: (1) operation management is simple relatively; (2) occupation of land is less.This technical disadvantages is: (1) bad adaptability, the low and water ratio of domestic refuse calorific value are burned effect when higher bad; (2) investment is big, and grate furnace burning domestic garbage project construction investment target is ten thousand yuan/ton of 30-40; (3) working cost height, it is low that this technology is destroyed rate by fire to domestic refuse, hazardous substance content height in the gas that residue and consumer waste incineration produce, the processing cost height, China's grate furnace burning domestic garbage project operation expense of operation at present is 150-250 unit/ton.
2, fluidized bed incinerator.Rubbish is through the material grasping bucket, throw in into stove from the top of incinerator in, drop on the central authorities of pulldown bed, then slowly by 600-700 ℃ of hot sand bed heating, consequently rubbish is lost its moisture by hot sand roasting and becomes fragile the fluidized-bed that is distributed to the pulldown bed both sides that continues.Crisp and frangible domestic refuse is extruded into fragment by the sand grains of strenuous exercise and burns very soon in fluidized-bed.On the other hand, the incombustible substance in the domestic refuse then moves to the incinerator both sides with sand grains, discharges out of the furnace automatically with sand grains.The novel fluidized bed incinerator of this kind can directly burn under without the situation of handling (fragmentation) in advance, succeeds in developing in 1981.This technological merit is: (1) domestic refuse does not need sorting, can directly burn; (2) suitability is good, and the thermal inertia that produces by the hot husky bed that flows is better to the consumer waste incineration effect that Lower heat value and water ratio are high.This technical disadvantages is: (1) operational administrative difficulty is big; (2) consumption of power is big; (3) flue gas processing costs height, the gas that this technology burning domestic garbage produces need to dispose according to danger wastes after charcoal absorption and bag filter collection, so cost is higher.
Open source literature has been reported some new type nonaqueous cement kiln burning domestic garbage New Method for Processing and new installations at present:
Chinese patent CN200910114490.7, the method for domestic refuse rotary cement kiln burning method as novel dry.This method comprises the process of sorting, fragmentation, burning, it is characterized in that: technical process comprises broken bag → Bulky Waste sorting → deodorizing → non-combustible waste screening → deodorizing → magnetic separation → fragmentation → vanning → material loading → feeding → burning → calcining, refuse classification factory building and whole processing line are taked totally-enclosed negative pressure design, be provided with three outlets of a rubbish import and non-combustible waste, combustiblerefuse and metal, rubbish passes through travelling belt, vanning respectively after screening, fragmentation, be transported to different processing places, and be provided with apparatus of air conditioning.
Chinese patent CN200410066088.3 utilizes the method for New Type Dry-process Cement Production system handles domestic waste.This method is divided into four steps: one, the domestic waste of collecting is carried out sorting, break process; Two, the total content of chlorine is too high in plastics, when surpassing control criterion and requiring, combustiblematerialss such as the plastics that sub-elect, waste paper, plant leaf is carried out the secondary sorting, plastic containing chlorine is sub-elected deal with in addition; Three, the dregs that sub-elects, glass-ceramic, kitchen are surplus etc. not directly is used for the part of burning, evenly admix a certain amount of raw material powder or kiln ash, carrying out homogenizing in the excess fermentation of containment kitchen handles, participate in the batching of cement raw material then, deliver in the raw mill, drying, grinding become cement raw meal, enter the homogenizing storehouse homogenizing and store, and then feed firing system together.Four, combustiblematerialss such as plastics after the paper that sub-elects, fabric, plant leaf and secondary sorting part is sent into firing system as the manufacture of cement alternative fuel after in small, broken bits.
Chinese patent CN200520069460.6 utilizes New Type Dry-process Cement Production system handles domestic waste device.This device arranges sewage and disposes by the raw material mill, domestic refuse sub-elects secondary fuel, finely ground particle substance, metal through trommel screen, belt conveyor, winnowing machine, tramp iron separator, packing machine, one-level crusher, secondary trommel screen, reciprocating sieve, secondary breaker etc., secondary fuel directly acts as a fuel, after finely ground particle substance adding kiln ash or cement slurry stir, deliver to the alternative materials stockyard, be transported to the preparation that participates in cement slurry in the raw material mill as alternative materials.
Rubbish drawing-in device aspect, the employed feeding machine of Chinese patent CN96119014.0 garbage incineration method and equipment is spiral feeding machine.Chinese patent CN200920164754.5 Rotating with Uniform lock feeding machine rotates the vertical structure equipment that feeder, leaf wind blocker, temperature resistant encapsulation storehouse, material-conveying belt, feed inlet and outlet etc. are formed by rake hopper, cylinder.The former is both the spiral push-press type by the rubbish charging equipment, and pressing waste can not loose charging, be easy to generate bonding and can not be fast thorough after-flame, it is synthetic to be easy to generate hazardous material.Back a kind of employing cylinder dividing plate charging solves closely and not loose problem of pressing waste, but adopts sector structure between the feeding dividing plate, and refuse breaking is required height, and does not solve the problem of domestic refuse real time measure feeding.
The garbage-incineration smoke purifying aspect, Chinese patent CN200810136801.5 method for purifying and processing cement revolving tubular kiln cooperated with consumer waste incineration flue gas, this technical patent is introduced the gas of consumer waste incineration generation after depickling and dedusting, send into cement kiln and carry out the secondary burning, at last flue gas is fed the moving-bed type packing tower, effectively reduce chilling link and acid gas purifying device in conjunction with cement industry, reduce purifying treatment step and operation consumption, reduce the input for the treatment of facility simultaneously, every index all is better than " consumer waste incineration pollution control criterion " (GB18485-2001).
People's feasibility studies such as Yang Qian the cement rotary kiln synergic processing process flexible, incineration system is stablized high temperature, objectionable constituent can at high temperature effectively be decomposed, can absorb deleterious acidic gas, heavy metal ion is solidificated in the grog, avoids spreading again that (domestic refuse is as the feasibility of cement slurry, chemical engineering and equipment, 2012 (7), 195-197)).
For making waste incineration more perfect, aspect garbage dewatering, also done technological development:
Chinese patent CN201110122405.9, a kind of processing method for turning household garbage into energy.This patented technology is introduced by the mode of rubbish through broken press dewatering oven dry, and the high temperature granulation obtains solid fuel.
Chinese patent CN201110275226.9, the efficient burning electricity generation system of domestic waste.Introduce rubbish and adopt and to sub-elect the degrade mode of extruding oven dry of the high large particulate matter of water ratio and dewater, obtain regenerated fuel.
The Tianjin moral is in " in the domestic waste organic dehydration research " literary composition of having delivered of environment-friendly engineering equipment company limited, with sulfuric acid at 180 ℃ of following catalyzed degradation corn cobs, handle 4h after water ratio reduce about 36.76%.
It is 3d that Yang Cheng stops by changing conditions such as the unit weight of rubbish, water ratio, thermal value are determined rubbish most optimal retention time in the pond, ground, article is mentioned rubbish and is pushed and fermentation because of physics in the back that stays for some time, moisture content obviously descends, thermal value also has very significantly (the dehydration experiment of rubbish in simulation incineration plant melt pit that raise, environmental hygiene engineering, 2004,12 (1), 43-44).
The quality of consumer waste incineration treatment effect depends on pretreating effect, and rubbish can improve the waste incineration effect by effective dehydration.It is less to utilize microorganism that the old dehydration method of domestic refuse is used at home in the domestic refuse pre-treatment, and it is long to store up fermentation disposal domestic refuse dewatering time naturally, is unfavorable for disposing fast newly-increased domestic refuse every day.
In existing technology, remain domestic refuse without fineness cracking and sorting effect difficult ensure and sorting long flow path, sorting cost height, rubbish mix when causing evenly inadequately that effectively reduction msw water content technology does not cause waste incineration in the difficult control of the unstable furnace temperature of refuse thermal value, the preprocessing process problems such as thermal losses is big.Present drawing-in device also exists the extruding feeding manner to cause rubbish to go into kiln and closely can not disperse to cause forming easily hazardous material, rotation lock wind feeding manner with after-flame fast and the pre-sorting of rubbish and fragmentation are had relatively high expectations cause pre-treatment complexity and operation cost problem of higher.
Summary of the invention:
The objective of the invention is:
Technical problem at existing life refuse processing method and equipment existence, reduce the domestic refuse water ratio, improve mean calorie and shatter value, increase metal elimination factor, reduce the adhesion conglomeration, can not disperse fast to burn and the big problem of the too high thermal losses that causes of water ratio when solving domestic refuse feeding and burning, finish at the disposable feeding of the whole process of domestic rubbish disposal, do not produce secondary pollution, real full minimizing, the resource utilization and innoxious that realizes domestic refuse, full processing, zero release and a kind of method of new type nonaqueous cement kiln burning domestic garbage is provided.
Technical scheme of the present invention is:
With domestic refuse by fragmentation after, join domestic refuse and the zymophyte pretreatment unit of my design, mix with fermentative microflora, utilize zymophyte that the heat of vaporization that produces in the old effect of domestic refuse and the old process is removed part moisture.By fermentation behind Tuo Shui the domestic refuse magnetic separation metal, utilize the even device of metering-type lock wind of my design that domestic refuse is fed in the decomposing furnace along the tertiary-air pipe tangential direction along the tertiary air mouth of pipe and decomposing furnace intersection, stablize hot conditions and fast domestic refuse is broken up for about 900 ℃ in the air-flow that in kiln, forms by means of tertiary air and the decomposing furnace, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire relies on deadweight to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 5% and the calcining of cement producting material mixing match, stable high temperature by 1750 ℃ of 1450 ℃ of solid materials temperature in the kiln and gas temperatures makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF etc. incorporate cement clinker and burn till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material, the aquation coagulation of heavy metal through transforming and solidifying by cement no longer separated out among being solidificated in fine and closely woven cement lattice, whole process thoroughly realizes the disposable ultimate processing of domestic refuse, full processing, zero release.
The present invention is achieved in that
A kind of method of new type nonaqueous cement kiln burning domestic garbage, the technological process that comprises fragmentation, dehydration, magnetic separation, transmission, feeding, burning, whole processing line is taked totally-enclosed negative pressure design, be provided with a domestic refuse metering import and mineral and municipal waste and two outlets of metal, mineral and municipal waste directly transfers to feed system by transport tape, pre-treatment is provided with apparatus of air conditioning in the workshop, and key step is:
(1) fragmentation: metals such as clothing, mattress, tire, timber and the reinforcing bar while of carrying secretly in the employing assurance domestic refuse is the crusher of the broken shearing broken blade that combines with the formula of colluding effectively, be that the domestic refuse of 45-60% is crushed to below the 80mm particle diameter with composite water cut, percolate reclaims standby;
(2) dehydration: it is 6-18r/min that the domestic refuse after fragmentation adopts rotating speed, the zymogenic drum-type homogenize of configuration automatic spray machine, part by weight with domestic refuse and zymocyte liquid is 2000: 1-2, domestic refuse after the homogenize freely falls into the old pond of domestic refuse, turning in per 24 hours once after old 1.5-2 days, leavening temperature control is between 55-73 ℃, zymophyte breeds fast, organism generation biochemical reaction in the domestic refuse and degrading, break biological cell wall in the domestic refuse effectively, leach the moisture that is full of in biological cell wall, and by the heat of vaporization part moisture of zymophyte to producing in the old process of domestic refuse, 3-5 days old dehydration of domestic refuse process, or passing through 4-7 days old dehydration in the winter time, zymophyte has been decomposed domestic refuse and has produced the foul gas organic substance, organic sulfide, organonitrogen, and the growth of inhibition spoilage microorganisms, the domestic garbage comprehensive water ratio is reduced to below 36%, obtains loose adhesion, be beneficial to the domestic refuse of burning.Whole ageing silo is that negative pressure state is carried out, and old pond is provided with the diversion trench collection and oozes drop liquid, and pneumatic outlet is provided with dewatering unit and biological treatment facility;
(3) magnetic separation: metal is mainly iron wire, bottle cap in the domestic refuse, adopts the general belt-type magnetic separator magnetic separation of present domestic maturation to reclaim; Copper, aluminium and other metalloid content are less, can not exert an influence to manufacture of cement, do not carry out sorting;
(4) carry: the domestic refuse after adopting the belt-type transmission system with magnetic separation is transported to feed system, and transport tape is according to operational throughput and the nonstandard making of required distance, and conveying belt is equipped with buncher, adjusts transfer rate according to demand; Conveying belt directly transfers to the rewinding storehouse of feed system from the pre-treatment workshop by the domestic refuse of angle of inclination after with broken and processed;
(5) feeding: feeding adopts metering-type lock feeding machine, utilizes the board-like circulation lock of rake cloth and two-door spaced valve wind facies in conjunction with realizing uniform distribution and lock feeding; The electronic operating device of speed governing and electronics continuous metering device are installed simultaneously, to transmit next loose domestic refuse according to the in good time feeding of every condition for validity in the new type nonaqueous cement kiln by material-conveying belt, when the burning condition produces than great fluctuation process, can stop feeding immediately, prevent that domestic refuse from changing the environmental protection harm that produces because of the burning condition in burning process;
(6) burn: tangentially feed decomposing furnace in from decomposing furnace tertiary-air pipe ingress domestic refuse by metering-type lock feeding machine, disperse fast under 900 ℃ of stable hot conditionss in decomposing furnace by the air-flow drive domestic refuse that tertiary air forms in kiln, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire is because of influence of gravity, to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 5% and cement producting material mixed calcining, high temperature by 1750 ℃ of 1450 ℃ of solid materialss in the kiln and gases makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF etc. incorporate cement clinker and burn till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material, the aquation coagulation of the heavy metal through transforming and solidifying by cement no longer separated out among being solidificated in fine and closely woven cement lattice; Whole domestic rubbish disposal process thoroughly realizes the disposable ultimate processing of domestic refuse, full processing, zero release.
Above-described zymophyte is to cultivate the zymophyte that exists by broken domestic refuse and percolate propagation, adopt the condition that keeps 40-60 ℃ of temperature therefrom preferably to breed and extract resistant to elevated temperatures zymophyte, mainly comprise subtilis (Bacillus subtilis (Ehrenberg) Cohn), Bacillus licheniformis (Bacillus licheniformis), soak numb genus bacillus (Latin Name Bacillus macerans Schardinger), Trichodermareesei (Trichodermareesei), series bacillus (Paenibacillus Ash) etc.; Zymophyte is that substratum was cultivated 12-24 hour with the corn juice under 25-30 ℃, pH value 4.5-8.5, per 12 hours aerations 1 hour, is diluted to living bacteria count 〉=1.0 * 1000cfu/kg during use.
The supporting machinery equipment that the above technology adopts is standard equipment or non-standard equipment.
Advantage of the present invention and effect:
1, the method for a kind of new type nonaqueous cement kiln burning domestic garbage of the present invention is that domestic refuse is carried out fragmentation earlier, and magnetic separation is reclaimed behind the metal directly to feed in the new type nonaqueous cement kiln decomposing furnace by transport tape and metering feeding system and burned.Simplify sorting process, improve the metal elimination factor, reduce sorting flow process and pre-treatment expense.
2, the present invention reduces domestic refuse unit weight and water ratio by domestic refuse being carried out the fragmentation back earlier by adding zymophyte to the quick old dehydration of domestic refuse, improves the domestic refuse mean calorie, reduces the energy waste in the incineration process of domestic garbage.
3, the present invention is by after carrying out fineness fragmentation and old dehydration earlier to domestic refuse, improve the domestic refuse shatter value, increase metal magnetic separation elimination factor, solved simultaneously that rubbish causes adhesion to be united can not disperseing fast in the feeding cement kiln decomposing furnace because water ratio is too high and the problem of after-flame fast, guaranteed the rate of destroying by fire fast after domestic refuse is gone into kiln.
4, the present invention effectively relaxes sorting consumer waste classification and broken requirement by the invention to feed system, reduces the pre-treatment expense, improves the quantized data management of metering feeding.
5, the present invention sets the multiple on-line metering of material feeding and discharging and feeding system, TV monitoring system, online data statistical system, detection system, data are shared with the supervision unit is online, improve online supervision security level, improve the ability to supervise to domestic rubbish disposal.
6, airtight design is adopted in domestic refuse reception, fragmentation and microorganism dehydration workshop, keeps little negative pressure, and the purifying air treatment facility is installed simultaneously.The purifying air treatment facility adopts the biologic treating technique of present domestic maturation, ensures that the air in domestic refuse reception, fragmentation and the microorganism dehydration is effectively purified, and prevents that foul smell is to the influence of surrounding environment.The disposable feeding of whole process is finished, and does not produce secondary pollution, really realizes full minimizing, resource utilization, innoxious, processing and the zero release entirely of domestic refuse.
Description of drawings:
Fig. 1 is process flow diagram of the present invention.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1
Pour the rubbish storage pool after the domestic refuse weighing into, rubbish storage pool leachate collecting utilizes, it is in the broken machine of 1170mm * 2555mm that the domestic refuse of rubbish storage pool is added receiver bin, with the cut broken blade that combines with the formula of colluding clothing, mattress, tire, timber and the reinforcing bar of carrying secretly in the domestic refuse etc. are carried out break process, below the broken particle diameter 80mm.Domestic refuse after the fragmentation enters drum-type homogenize machine through the inclined hopper, with biological spraying machine process is kept 25 ℃ of temperature, the pH value is 8.5, propagation dilution is that to ooze drop liquid zymophyte be the surface that 2000:2 is sprayed onto domestic refuse with the part by weight of domestic refuse and zymocyte liquid to 1.0 * 1000cfu/kg for living bacteria count under 1 hour the condition of per 12 hours aerations, be 18r/min homogenize mixing with the rotating speed, domestic refuse landing behind the mixing is to domestic refuse storage dehydration pond, the driving grab bucket is stored up the domestic refuse pick-and-place that adds microorganism old to storage dehydration pond, turning in per 24 hours once after old 1.5 days, leavening temperature control is between 55-73 ℃, domestic refuse was through 5 days old dehydration, the domestic garbage comprehensive water ratio is reduced to 34%, obtain loose adhesion, be beneficial to the domestic refuse of burning, whole ageing silo is that negative pressure state is carried out, old pond is provided with the diversion trench collection and oozes drop liquid, and pneumatic outlet is provided with dewatering unit and biological treatment facility.
The domestic refuse of old dehydration, send into the deironing of rubbish tramp iron separator with the driving grab bucket, transfer roller is transported to the other hopper of cement kiln decomposing furnace with the anhydrobiosis rubbish of deironing, domestic refuse enters the lock feeding device by the electronic constant track scale, utilize gravity to fall on the transfer roller, material-conveying belt along tertiary-air pipe tangential direction feeds new type nonaqueous cement kiln decomposing furnace in through closed cabin and feed valve material, disperse fast under 900 ℃ of stable hot conditionss in decomposing furnace by the air-flow drive domestic refuse that tertiary air forms in kiln, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire is because of influence of gravity, to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 5% and cement producting material mixed calcining, high temperature by 1750 ℃ of 1450 ℃ of solid materialss in the kiln and gases makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF etc. incorporate cement clinker and burn till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material; It is 0.28% iron wire, bottle cap metal that magnetic separation obtains accounting for the domestic refuse ratio.
Embodiment 2
Pour the rubbish storage pool after the domestic refuse weighing into, rubbish storage pool leachate collecting utilizes, it is in the broken machine of 1170mm * 2555mm that the domestic refuse of rubbish storage pool is added receiver bin, with the cut broken blade that combines with the formula of colluding clothing, mattress, tire, timber and the reinforcing bar of carrying secretly in the domestic refuse etc. are carried out break process, below the broken particle diameter 75mm.Domestic refuse after the fragmentation enters drum-type homogenize machine through the inclined hopper, with biological spraying machine process is kept 28 ℃ of temperature, the propagation dilution of 1 hour condition of per 12 hours aerations is the surface that 2000:2.5 is sprayed onto domestic refuse for living bacteria count 1.3 * 1000cfu/kg oozes drop liquid zymophyte with the part by weight of domestic refuse and zymocyte liquid, be 10r/min homogenize mixing with the rotating speed, rubbish landing behind the mixing is to domestic refuse storage dehydration pond, the driving grab bucket is stored up the rubbish pick-and-place that adds microorganism old to storage dehydration pond, turning in per 24 hours once after old 2 days, leavening temperature control is between 55-73 ℃, domestic refuse was through 3 days old dehydration, the domestic garbage comprehensive water ratio is reduced to 35.3%, obtains loose adhesion, be beneficial to the domestic refuse of burning.Whole ageing silo is that negative pressure state is carried out, and old pond is provided with the diversion trench collection and oozes drop liquid, and pneumatic outlet is provided with dewatering unit and biological treatment facility.
The domestic refuse of old dehydration, send into the deironing of domestic refuse tramp iron separator with the driving grab bucket, transfer roller is transported to the other hopper of cement kiln decomposing furnace with the anhydrobiosis rubbish of deironing, domestic refuse enters the lock feeding device by the electronic constant track scale, utilize gravity to fall on the transfer roller, material-conveying belt along tertiary-air pipe tangential direction feeds new type nonaqueous cement kiln decomposing furnace in through closed cabin and feed valve material, disperse fast under 900 ℃ of stable hot conditionss in decomposing furnace by the air-flow drive domestic refuse that tertiary air forms in kiln, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire is because of influence of gravity, to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 5% and cement producting material mixed calcining, high temperature by 1750 ℃ of 1450 ℃ of solid materialss in the kiln and gases makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF etc. incorporate cement clinker and burn till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material, it is 0.29% iron wire, bottle cap metal that magnetic separation obtains accounting for the domestic refuse ratio.
Embodiment 3
Pour the rubbish storage pool after the domestic refuse weighing into, rubbish storage pool leachate collecting utilizes, the rubbish alive of rubbish storage pool is added in the broken machine, with the cut broken blade that combines with the formula of colluding clothing, mattress, tire, timber and the reinforcing bar of carrying secretly in the domestic refuse etc. are carried out break process, below the broken particle diameter 80mm.Domestic refuse after the fragmentation enters drum-type homogenize machine through the inclined hopper, with biological spraying machine process is kept 30 ℃ of temperature, the propagation dilution of 1 hour condition of per 12 hours aerations is the surface that 2000:1.5 is sprayed onto domestic refuse for living bacteria count 1.1 * 1000cfu/kg oozes drop liquid zymophyte with the part by weight of domestic refuse and zymocyte liquid, be 6r/min homogenize mixing with the rotating speed, domestic refuse landing behind the mixing is to rubbish storage dehydration pond, the driving grab bucket is stored up the domestic refuse pick-and-place that adds microorganism old to storage dehydration pond, turning in per 24 hours once after old 1.8 days, leavening temperature control is between 55-73 ℃, domestic refuse was through 6 days old dehydration, the domestic garbage comprehensive water ratio is reduced to 36%, obtain loose adhesion, be beneficial to the domestic refuse of burning, whole ageing silo is that negative pressure state is carried out, old pond is provided with the diversion trench collection and oozes drop liquid, and pneumatic outlet is provided with dewatering unit and biological treatment facility.
The domestic refuse of old dehydration, send into the deironing of domestic refuse tramp iron separator with the driving grab bucket, transfer roller is transported to the other hopper of cement kiln decomposing furnace with the anhydrobiosis rubbish of deironing, domestic refuse enters the lock feeding device by the electronic constant track scale, utilize gravity to fall on the transfer roller, material-conveying belt along tertiary-air pipe tangential direction feeds new type nonaqueous cement kiln decomposing furnace in through closed cabin and feed valve material, disperse fast under 900 ℃ of stable hot conditionss in decomposing furnace by the air-flow drive domestic refuse that tertiary air forms in kiln, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire is because of influence of gravity, to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 4.5% and cement producting material mixed calcining, high temperature by 1750 ℃ of 1450 ℃ of solid materialss in the kiln and gases makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF etc. incorporate cement clinker and burn till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material.It is 0.26% iron wire, bottle cap metal that magnetic separation obtains accounting for the domestic refuse ratio.

Claims (2)

1. the method for a new type nonaqueous cement kiln burning domestic garbage, it is characterized in that: the technological process that comprises fragmentation, dehydration, magnetic separation, transmission, feeding, burning, whole processing line is taked totally-enclosed negative pressure design, be provided with a domestic refuse metering import and old rubbish and two outlets of metal, old rubbish directly transfers to feed system by transport tape, pre-treatment is provided with apparatus of air conditioning in the workshop, and key step is:
(1) fragmentation: metals such as clothing, mattress, tire, timber and the reinforcing bar while of carrying secretly in the employing assurance domestic refuse is the crusher of the broken shearing broken blade that combines with the formula of colluding effectively, be that the domestic refuse of 45-60% is crushed to below the 80mm particle diameter with composite water cut, percolate reclaims standby;
(2) dehydration: it is 6-18r/min that the domestic refuse after fragmentation adopts rotating speed, the zymogenic drum-type homogenize of configuration automatic spray machine, part by weight with domestic refuse and zymocyte liquid is 2000: 1-2, domestic refuse after the homogenize freely falls into the old pond of domestic refuse, turning in per 24 hours once after old 1.5-2 days, leavening temperature control is between 55-73 ℃, zymophyte breeds fast, organism generation biochemical reaction in the domestic refuse and degrading, break biological cell wall in the domestic refuse effectively, leach the moisture that is full of in biological cell wall, and by the heat of vaporization part moisture of zymophyte to producing in the old process of domestic refuse, 3-5 days old dehydration of domestic refuse process, or passing through 4-7 days old dehydration in the winter time, zymophyte has been decomposed domestic refuse and has produced the foul gas organic substance, organic sulfide, organonitrogen, and the growth of inhibition spoilage microorganisms, the domestic garbage comprehensive water ratio is reduced to below 36%, obtains loose adhesion, be beneficial to the domestic refuse of burning; Whole ageing silo is that negative pressure state is carried out, and old pond is provided with the diversion trench collection and oozes drop liquid, and pneumatic outlet is provided with dewatering unit and biological treatment facility;
(3) magnetic separation: metal is mainly iron wire, bottle cap in the domestic refuse, adopts the general belt-type magnetic separator magnetic separation of present domestic maturation to reclaim; Copper, aluminium and other metalloid content are less, can not exert an influence to manufacture of cement, do not carry out sorting;
(4) carry: the domestic refuse after adopting the belt-type transmission system with magnetic separation is transported to feed system, and transport tape is according to operational throughput and the nonstandard making of required distance, and conveying belt is equipped with buncher, adjusts transfer rate according to demand; Conveying belt directly transfers to the rewinding storehouse of feed system from the pre-treatment workshop by the domestic refuse of angle of inclination after with broken and processed;
(5) feeding: feeding adopts metering-type lock feeding machine, utilizes the board-like circulation lock of rake cloth and two-door spaced valve wind facies in conjunction with realizing uniform distribution and lock feeding; The electronic operating device of speed governing and electronics continuous metering device are installed simultaneously, to transmit next loose domestic refuse according to the in good time feeding of every condition for validity in the new type nonaqueous cement kiln by material-conveying belt, when the burning condition produces than great fluctuation process, can stop feeding immediately, prevent that domestic refuse from changing the environmental protection harm that produces because of the burning condition in burning process;
(6) burn: tangentially feed decomposing furnace in from decomposing furnace tertiary-air pipe ingress domestic refuse by metering-type lock feeding machine, disperse fast under 900 ℃ of stable hot conditionss in decomposing furnace by the air-flow drive domestic refuse that tertiary air forms in kiln, ignite, calcining, objectionable impurities is effectively transformed and is solidify to form stable innoxious substance under the alkaline reduction atmosphere in kiln, lime-ash after thoroughly destroying by fire is because of influence of gravity, to falling in the new type nonaqueous cement kiln rotary calciner body, ratio according to 5% and cement producting material mixed calcining, high temperature by 1750 ℃ of 1450 ℃ of solid materialss in the kiln and gases makes the SiO in domestic refuse and other raw material 2, Al 2O 3, Fe 2O 3, CaO generates C in chemistry and physical reaction 3S, C 2S, C 3H, C 4HF incorporates cement clinker and burns till in the vitreum, drop to about 120 ℃ from 1450 ℃ by comb formula Chiller, through grinding system according to different demands and ratio with the levigate cement of making of blended material, the aquation coagulation of the heavy metal through transforming and solidifying by cement no longer separated out among being solidificated in fine and closely woven cement lattice; Whole domestic rubbish disposal process thoroughly realizes the disposable ultimate processing of domestic refuse, full processing, zero release.
2. the method for a kind of new type nonaqueous cement kiln burning domestic garbage according to claim 1, it is characterized in that: described zymophyte is to cultivate the zymophyte that exists by broken domestic refuse and percolate propagation, adopt the condition that keeps 40-60 ℃ of temperature therefrom preferably to breed and extract resistant to elevated temperatures zymophyte, mainly comprise subtilis (Bacillus subtilis (Ehrenberg) Cohn), Bacillus licheniformis (Bacillus licheniformis), soak numb genus bacillus (Latin Name Bacillus macerans Schardinger), Trichodermareesei (Trichodermareesei), series bacillus (Paenibacillus Ash) etc.; Zymophyte is that substratum was cultivated 12-24 hour with the corn juice under 25-30 ℃, pH value 4.5-8.5, per 12 hours aerations 1 hour, is diluted to living bacteria count 〉=1.0 * 1000cfu/kg during use.
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CN103759276A (en) * 2013-12-30 2014-04-30 黑龙江福奥橡塑环保科技有限公司 Process for incinerating waste tires and processing tail gas
CN104654312A (en) * 2015-02-27 2015-05-27 四川欣源绿环保科技有限公司 Flameless incineration process of solid waste
CN105114956A (en) * 2015-09-16 2015-12-02 潍坊金丝达新能源科技有限公司 High-temperature rubbish gasification power generation system
CN105785942A (en) * 2014-12-26 2016-07-20 中国二十冶集团有限公司 Grouping and combined debugging method for large-scale dry method cement decentralized control system
CN106813244A (en) * 2015-12-02 2017-06-09 北京恩萨工程技术有限公司 A kind of system and method for utilization cement kiln synergic processing house refuse
CN106829556A (en) * 2017-03-09 2017-06-13 杭州易辉环保科技有限公司 A kind of cement kiln synergic processing dangerous waste system and method
CN106966618A (en) * 2017-02-27 2017-07-21 西南科技大学 A kind of method of cement kiln synergic processing house refuse
CN107575871A (en) * 2017-08-25 2018-01-12 清华大学 A kind of method using cement kiln scale cooperative disposal house refuse
CN109991116A (en) * 2019-03-15 2019-07-09 中节能(连云港)清洁技术发展有限公司 A kind of method for quickly detecting of Hazardous waste incineration bottom ash clinker ignition loss
CN110296605A (en) * 2019-07-04 2019-10-01 吉林亚泰水泥有限公司 A kind of method of cement kiln waste tire substitution part of fuel
CN110779754A (en) * 2019-10-29 2020-02-11 中国葛洲坝集团水泥有限公司 Sampling and sample preparation method for cooperatively treating household garbage by cement kiln

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CN103586263A (en) * 2013-11-06 2014-02-19 武汉理工大学 Urban garbage aerobiotic-anaerobic biological drying method without external heat source
CN103586263B (en) * 2013-11-06 2015-07-22 武汉理工大学 Urban garbage aerobiotic-anaerobic biological drying method without external heat source
CN103759276A (en) * 2013-12-30 2014-04-30 黑龙江福奥橡塑环保科技有限公司 Process for incinerating waste tires and processing tail gas
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CN105785942A (en) * 2014-12-26 2016-07-20 中国二十冶集团有限公司 Grouping and combined debugging method for large-scale dry method cement decentralized control system
CN104654312B (en) * 2015-02-27 2017-03-01 四川欣源绿环保科技有限公司 A kind of nonflame burning process of solid waste
CN104654312A (en) * 2015-02-27 2015-05-27 四川欣源绿环保科技有限公司 Flameless incineration process of solid waste
CN105114956A (en) * 2015-09-16 2015-12-02 潍坊金丝达新能源科技有限公司 High-temperature rubbish gasification power generation system
CN105114956B (en) * 2015-09-16 2017-07-11 潍坊金丝达新能源科技有限公司 High temperature garbage gasification power generation system
CN106813244A (en) * 2015-12-02 2017-06-09 北京恩萨工程技术有限公司 A kind of system and method for utilization cement kiln synergic processing house refuse
CN106813244B (en) * 2015-12-02 2019-11-29 北京恩萨工程技术有限公司 A kind of system and method using cement kiln synergic processing house refuse
CN106966618A (en) * 2017-02-27 2017-07-21 西南科技大学 A kind of method of cement kiln synergic processing house refuse
CN106829556A (en) * 2017-03-09 2017-06-13 杭州易辉环保科技有限公司 A kind of cement kiln synergic processing dangerous waste system and method
CN107575871A (en) * 2017-08-25 2018-01-12 清华大学 A kind of method using cement kiln scale cooperative disposal house refuse
CN109991116A (en) * 2019-03-15 2019-07-09 中节能(连云港)清洁技术发展有限公司 A kind of method for quickly detecting of Hazardous waste incineration bottom ash clinker ignition loss
CN110296605A (en) * 2019-07-04 2019-10-01 吉林亚泰水泥有限公司 A kind of method of cement kiln waste tire substitution part of fuel
CN110779754A (en) * 2019-10-29 2020-02-11 中国葛洲坝集团水泥有限公司 Sampling and sample preparation method for cooperatively treating household garbage by cement kiln

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