CN109500049A - A kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle - Google Patents
A kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle Download PDFInfo
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- CN109500049A CN109500049A CN201811195430.8A CN201811195430A CN109500049A CN 109500049 A CN109500049 A CN 109500049A CN 201811195430 A CN201811195430 A CN 201811195430A CN 109500049 A CN109500049 A CN 109500049A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The present invention relates to a kind of daily-life garbage without environmental pollution recycling processing methods utilized with effluent cycle, municipal refuse is passed through into artificial separation, what magnetic separation and mechanical sorting mode sub-elected garbage raw material and garbage derivatived fuel prepares raw material, then the raw material for preparing for the garbage derivatived fuel that pretreatment procedure obtains is prepared into garbage derivatived fuel, simultaneously by garbage raw material and clay, lime stone, iron powder is mixed, and building materials raw material is prepared through calcined by rotary kiln after broken, the flying dust and flue gas of the calcining generation of rotary kiln are handled by way of dedusting and chemical reaction, denitrification is carried out finally by sewage, nitrification, ultrafiltration and reverse osmosis treatment, purified treatment is carried out to rubbish water for cleaning；Not only make municipal refuse be converted into building materials raw material, so that municipal refuse is able to carry out Energy Resources Service's utilization, the utilization rate of municipal refuse is greatly improved, and purified treatment and reuse can be carried out to the sewage generated in garbage processing procedure, saves the utilization of water resource.
Description
Technical field
The present invention relates to a kind for the treatment of method for urban garbage, in particular to a kind of municipal refuse utilized with effluent cycle without
Evilization recycling processing method.
Background technique
With the development of urban construction and increase, the expansion of city function and the raising of Living consumption of population, city
The yield of city's rubbish steeply rises with burden, counts according to Chinese city environmental sanitation association, China generates nearly 1,000,000,000 every year
Ton rubbish, wherein about 400,000,000 tons of Output of Domestic Waste, build 500,000,000 tons of rubbish or so, in addition, there are also 10,000,000 tons of kitchen garbage
Left and right, Chinese rubbish total amount is among the best in the world；Quickening and people's lives water with China's Development of China's Urbanization
Flat raising, application of city life garbage also with the speed increase of annual 5%-8% or so, refuse harm have become serious environment with
Social concern.
Currently, to the processing of municipal refuse, there are mainly four types of methods: landfill method, pyrolysismethod, incineration method, composting method.
Above-mentioned several method has following characteristics:
1, " landfill method " operation is easier to, but there is a large amount of land occupation resources, generate secondary pollution and it is potential dangerous and
It invests the problems such as huge, validity period is limited, and has lost largely recyclable resource.
2, " pyrolysismethod " can control noxious gas emission, but still have amount of landfill greatly and the problem of secondary pollution, invest also not
It is few.
3, " compost treatment method " is conducive to the utilization of organic matter in garbage, but requires strictly handled rubbish composition, and
And the oxious components such as heavy metal in rubbish understand contaminated soil and underground water, hence into the food chain of urban and rural residents, and its is residual
The processing of excess and the control of germ, virus are also very intractable.
4, " incineration method " is that many cities of important process method and China of municipal refuse minimizing are or real
One of main method applied；But garbage incinerating system investment is big, operating cost is high, especially often generates such as in burning process
Hydrogen chloride, nitrogen oxide, sulfur oxide and severe toxicity the pernicious gases such as two uh English；Moreover, there are also the rubbish of former garbage weight 10% or so
Ash must be filled again or especially be handled as hazardous waste.
Therefore, a kind of big target of achievable garbage disposal four is explored --- it is minimizing, recycling, innoxious, stabilization
The method of garbage disposal is the target of personages of various circles of society's long-sought.
Summary of the invention
Municipal refuse is handled using rotary kiln and produces the technology and equipment of building materials raw material, replaces incinerator with rotary kiln,
The feature of high, gas time length in kiln using its temperature, the generation of the toxic gases such as two uh English of control；And incineration firing with
Sinter leaching is unified to be completed, and is received oxious component and lime-ash using the characteristic of clinker and is formed stable mineral, eliminates completely residual
Slag；Rotary kiln and its dust-precipitator etc. are become waste incineration and sinter leaching and control the multipurpose device of atmosphere pollution, then it can be big
Amplitude reduction investment；It can be seen that this method can be realized daily-life garbage without environmental pollution, recycling treatment.
A kind of municipal refuse utilized with effluent cycle proposed the purpose of the present invention is to solve background technique without
Evilization recycling processing method can not only make municipal refuse be converted into building materials raw material, so that municipal refuse is able to carry out money
It utilizes at source, is generated when the utilization rate of municipal refuse can be greatly improved, and building materials raw material can be prepared to calcining rubbish
Flue gas and flying dust carry out synthetical recovery processing, have broad application prospects.
To achieve the goals above, present invention employs following technical solutions:
A kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle comprising pretreatment procedure, by city
Rubbish prepares raw material by what artificial separation, magnetic separation and mechanical sorting mode sub-elected garbage raw material and garbage derivatived fuel；
Rubbish rotary calcining process, by the garbage derivatived fuel that pretreatment procedure obtains prepare raw material prepare it is garbage derivatived
Fuel, while the garbage raw material being mixed with clay, lime stone, iron powder, and through calcined by rotary kiln system after broken
Standby building materials raw material；
Postprocessing working procedures carry out the flying dust and flue gas of the calcining generation of the rotary kiln by way of dedusting and chemical reaction
Processing；
Sewage purification process, by carrying out denitrification, nitrification, ultrafiltration and reverse osmosis treatment to sewage, to rubbish water for cleaning into
Row purified treatment.
Limited as of the invention further, pretreatment procedure specifically: municipal refuse by collect pull in after first
It is weighed in weighbridge office, is discharged into feed bin after arrival discharging platform and enters artificial separation platform through the transmission belt of bin bottom, first pass through
The solid waste for being easy to select is selected in artificial separation, including the article and part waste paper that can directly recycle and useless modeling
Material；Then metal is separated by magnetic separator, iron recoverable or as building materials raw material production needed for iron powder make
With；Rotary screen, by thick, thin feed separation, then utilizes winnowing machine by waste paper the bulky material separated by material particular diameter size
And waste plastics is separated with coarse stone, to tiny material using jigging sorting machine by material by the differential separation of density go out density compared with
The light heavier inorganic matter of organic matter and density wherein includes stone, glass, ceramics, concrete block, ashes and sand in inorganic matter
Son；Waste paper that artificial separation and selection by winnowing obtain, waste plastics are dried by vacuum drier, and by selection by winnowing and jigging
It sorts obtained coarse stone and the heavier inorganic matter of density is crushed to obtain garbage raw material by impact crusher.
The effect of pretreatment procedure is using manually or mechanically method the object that can directly recycle in solid waste
Material and the feed separation for being not suitable for entering treatment process come out, and carry out rough machined process to rest materials.
As further restriction of the invention, rubbish rotary calcining process specifically: have what pretreatment procedure obtained
After machine object is dried by drying machine, crushed to obtain the organic particle of uniform particle sizes using pulverizer, then will before
The waste paper and waste plastics for the drying that treatment process obtains, which are stirred with organic particle by mixing machine, to be mixed, finally will mixing
Garbage derivatived fuel is prepared by molding machine in organic particle, waste paper and waste plastics afterwards.
As further restriction of the invention, rubbish rotary calcining process further include: the rubbish for obtaining pretreatment procedure
It after rubbish raw material is mixed with clay, lime stone, iron powder, is crushed by ball mill, smashed mixture passes through strength
Conveyance conduit is sent into head tank and carries out standing deposition, and bottoms material in head tank is sent into material homogenizer by Pneumatic conveying pipeline
Processing is homogenized in tank, then by pipeline by the high-end kiln tail of the feedstock transportation of homogenizing to rotary kiln, while through coal injection pipe
By low side kiln hood input fuel oil, lime-ash and garbage derivatived fuel；The raw material of homogenizing is with edge of rolling in the rotation circumferentially of cylinder
Heat is absorbed while axial mobile to low side kiln hood to be gradually warmed up, and is burnt into clinker in firing zone, is entered after cooling zone is cooling
Cooler continues to cool down, and clinker after cooling is stirred homogenizing by blender, and gypsum is then added in clinker and is passed through
It carries out crushing in pulverizer and building materials raw material is prepared.
As further restriction of the invention, postprocessing working procedures specifically: the flue gas that rotary kiln generates is passed through pipeline
Be sent into electrostatic precipitator, generate corona using high voltage negative and act on, make by waste exhaust gases molecular ionization, grit is negatively charged
It by the positive plate sorption of dust arrester and neutralizes, after a period of time, the grit on pole plate drops down onto dust funnel, can remove
Large-size particles in flue dust；Then flue gas enters spray column and neutralization reaction occurs for the basic agent of penetrating, removes titanium dioxide
Sulphur and hydrogen chloride gas；The flue gas that heater comes out spray column heats, and is then introduced into sack cleaner, and
It sprays into pulverized limestone and active carbon comes trap heavy metals and two uh English, make filter bag of the exhaust gas by sack cleaner, make granular dirt
Dye object is attached on filter layer to be adsorbed with pulverized limestone and active carbon, and timing is to vibrate, air-flow back washing or pulsation are rinsed
Mode removes the particulate contaminant being attached on filter bag；Then it pressurizes through air-introduced machine to flue gas, while being connect with rotary kiln
Heat exchanger ammonia is heated and is added to flue gas, then import reductor and remove denitrification, the gas after reductor restores
Body by fume extractor be discharged, and by fume extractor be arranged flue gas online monitoring system in fume extractor flue gas it is each
The content of pollutant is monitored in real time.
As further restriction of the invention, postprocessing working procedures further include: the flying dust that rotary kiln generates is passed through pipeline
It is sent into flying dust collecting-tank, slurries is imported in primary reaction pond by slush pump, sodium carbonate is added into primary reaction pond；Instead
Slurries are sent into primary clarifier by pipeline after answering a period of time, after precipitating a period of time, clear liquid is sent into secondary by water pump
In order reaction pond, heavy metal chelating agent is added into secondary reaction pond；Slurries are passed through into pipeline feeding time after reaction a period of time
In grade sedimentation basin, after precipitating a period of time, clear liquid is sent into filter device by water pump further by graininess impurity in waste water
Removal；The bottom material of primary clarifier and the precipitating in post-precipitate pond passes through drying machine after carrying out dehydration separation by solid-liquid separator
It is dried to obtain lime-ash, lime-ash is sent into rotary kiln together with fuel oil and garbage derivatived fuel and is handled, dehydration separation
Liquid afterwards imports primary reaction pond and is handled again；Water derived from filter device is pumped to enrichment facility by water, to mistake
Waste water after filter carries out concentration and removes salt treatment, and the desalination water after desalination is back in flying dust collecting-tank, remaining a small amount of high-salt concentrated
Feeding of shrinking evaporating column is evaporated, and evaporating column is heated by the heat exchanger connecting with rotary kiln.
As further restriction of the invention, sewage purification process specifically: by service sink, primary rotary screen wet concentration
The sewage that machine, winnowing machine and jigging sorting machine are collected imports in conditioning tank, is carried out according to the pH value of sewage and temperature to sewage
The adjusting of water quality and water temperature；Sewage in conditioning tank is imported in primary denitrification pond by pipeline, by de- in denitrification pond
Nitrogen strain converts nitrogen for nitrate nitrogen under anaerobic；After reacting a period of time, sewage is imported in primary nitrification tank, it is good
Mineralized nitrogen in oxygen animalcule decomposing organic matter impurity is nitrate nitrogen, aerobic reaction for a period of time after, sewage is imported secondary
Denitrification and nitrification processing are successively carried out in denitrification pond, secondary nitrification tank；Treated sewage is passed through in ultrafiltration solution tank into
Row purified treatment, separates sludge and sewage, and the sewage after separation is passed through in concentration tank, carries out at concentration desalination to sewage
Reason；Sewage is passed sequentially through into primary RO processor, secondary RO processor progress purified treatment, clear liquid is imported into clear water reserviors after processing
In be used for additional clean rubbish service sink.
The preparation that carries out building materials raw material cannot be direct plungeed into rotary kiln by conventional pretreated rubbish, and reason is such as
Under:
First, the proportion of cement slurry has strict requirements, if the inorganic matter in waste is directly used as secondary raw material, because of it
Chemical component is unstable, and discreteness is big, therefore it is unable to satisfy the technical requirements uniform into kiln raw ingredients, quality is stable；
Second, rotary kiln is a sensitive heat power engineering system, and whether hot-fluid, air-flow or material stream are varied slightly and can all be destroyed
Original system balancing, therefore to avoid system from, in disturbing, waste being used as secondary combustion by excessive when using alternative fuel
Its calorific value is coped with when material minimum requirements, 11MJ/kg is usually set as minimum permission calorific value, however the municipal refuse in China is universal
Calorific value is lower, is unable to reach the minimum requirements of 11MJ/kg, and therefore, the organic matter in waste is not suitable for being directly used as rotary kiln
Alternative fuel.
Waste also needs prepare to secondary former, fuel after routinely pre-processing to can be only achieved production requirement as a result,.
With the rapid development of my social economy, the demand to the energy can be increasing, and China has become second-biggest-in-the-world
Energy-consuming state；Continue to develop by present circumstances, domestic conventional energy resource, such as storage deficiency will be present in matchmaker, oil and natural gas
Crisis, and the problem of environmental pollution being induced by it also is badly in need of being controlled.
Garbage derivatived fuel can substitute coal as the alternative some conventional energy resources of new energy substance, be applicable in
In the rubbish pretreatment process of waste incineration blown power plant, suitable for being transformed to existing boiler.
The production preparation of garbage derivatived fuel generally will be by several procedures such as sorting, dry, broken and compression formings, no
With preparation process in some detailed process or the mutual different from of link.
Therefore, based on this consideration, applicant, which sets about studying, prepares rubbish for the part combustibility material after refuse classification
Derivatived fuel is used for the alternative fuel of rotary kiln, can not only improve the utilization rate of rubbish, the fuel for more reducing rotary kiln disappears
Consumption has good technical effect to the volume reduction treatment of rubbish.
Minimum requirements due to coping with its calorific value when waste is used as secondary fuel is 11MJ/kg, it is therefore desirable to be ensured
The calorific value of the garbage derivatived fuel of preparation is greater than above-mentioned minimum, while height can also be mixed while garbage derivatived fuel is added
Calorific value waste or conventional fuel (such as coal dust or fuel oil) are to guarantee burning quality.
The organic matter obtained after jigging is sorted is dried by drying machine, then is crushed to obtain using crusher
The organic matter powder of uniform particle sizes, then the waste paper obtained after artificial separation and selection by winnowing and waste plastics are carried out by paper drying machine
It is dry, obtained organic matter powder is proportionally imported in mixing machine with waste paper and waste plastics and is mixed, and to mixing machine
Middle mixture is heated to control the moisture content of mixture, and finally mixed mixture is passed through in molding machine and suppresses preparation
Garbage derivatived material.
Since the waste paper of phase homogenous quantities and the calorific value of waste plastics are there are obvious gap, the calorific value of waste paper is about 15MJ/kg, and
The calorific value of waste plastics about 40MJ/kg, therefore, in order to ensure that the calorific value of the garbage derivatived fuel of preparation is not only above minimum requirements 11MJ/
Kg, and can be in the case where guaranteeing that waste paper is effectively removed, the higher the better for the calorific value of the garbage derivatived fuel of preparation.
Learn that high heating value rubbish accounts for whole cities by the original-source by classification experiment carried out to different pilot resident living cells
The 18.26% of Output of Domestic Waste, wherein Plastic component accounts for 47.4%, the wooden class account for 2.2%, stationery 27.1%, textile fabric 7.6%,
Compound 15.6%；Therefore, ratio (by mass) 1:0.5~0.7 of waste plastics and waste paper is controlled.
Therefore, the group of mixture is selected to be divided into (according to mass percent meter): 40% organic matter powder, 20% waste paper and 40%
Waste plastics.
In addition, by the physical property table of comparisons of the garbage derivatived fuel of different water cut in Fig. 2, it can be seen that with aqueous
The increase of rate, particle length shorten, and when especially 15% moisture content, most of particle length is shorter；And it is come out from molding machine
Particle it is frangible after drying, effect of resist compression is poor, particle through a long time squeeze become it is broken after influence the later period burning effect.Moisture content
Increase so that the mouldability of mixture is deteriorated, when the moisture content of mixture is high, although also can compression forming, its stability become
Difference can become loose after dry；But moisture also cannot be too low, and moisture content is too low, will cause between mixture and the mold of molding machine
Frictional force increases, and reduces discharging speed, to reduce load, reduces yield, energy consumption is caused to increase；With the increasing of moisture content
Add, the grain density and bulk density of garbage derivatived fuel have on a declining curve, and main cause is the increase with moisture, object
Material becomes more lubricious, it is easier to extrude from ring moulds hole, the degree of packing of particle and density is caused to be declined, and the length of particle
Degree decreases.
In summary, moisture content is advisable in 9%-13% in garbage derivatived fuel preparation process；Therefore, selection control rubbish spreads out
The moisture content of raw fuel is (according to mass percent meter): 9%~13%.
As further restriction of the invention, contain in mixed organic particle, waste paper and waste plastics (according to matter
Measure percentages) 40% organic matter powder, 20% waste paper and 40% waste plastics, and control the moisture content of the garbage derivatived fuel
(according to mass percent meter) is 9%~13%.
As further restriction of the invention, the basic agent sprayed into spray column is specially sodium hydroxide.
As further restriction of the invention, sodium carbonate amount is 40~70 kilograms of slurries dosage per ton, the huge sum of money
Category agent for capturing be thiocarbamates, 1~5 kilogram of clear liquid dosage per ton.
As further restriction of the invention, heat exchanger passes through a part of high-temperature flue gas for extracting rotary kiln, right
Evaporating column is heated, and high-salt concentrated shrink is conducted heat rapidly, evaporated in evaporating column, and liquid portion is with the gaseous state shape of vapor
State returns in electrostatic precipitator and carries out purified treatment again, and the solid salt evaporated all recycles.
The beneficial effects of the present invention are:
1, municipal refuse is handled using rotary kiln and produce the technology and equipment of building materials raw material, replace incinerator with rotary kiln, benefit
With the feature that its temperature is high, gas time in kiln is long, the generation of the toxic gases such as two uh English of control；And incineration firing with it is ripe
Material firing is unified to be completed, and is received oxious component and lime-ash using the characteristic of clinker and is formed stable mineral, completely elimination residue；
Rotary kiln and its dust-precipitator etc. are become waste incineration and sinter leaching and control the multipurpose device of atmosphere pollution, then it can be significantly
Reduce investment；It can be seen that this method can be realized daily-life garbage without environmental pollution, recycling treatment.
2, by the way that the waste paper obtained after artificial separation and selection by winnowing and waste plastics to be dried by paper drying machine, will
To organic matter powder proportionally import in mixing machine and mixed with waste paper and waste plastics, and to mixture in mixing machine into
Row is heated to control the moisture content of mixture, finally prepares garbage derivatived material, the utilization rate of municipal refuse can be greatly improved,
And the fuel consumption of rotary kiln can be lowered.
3, the flue gas and flying dust generated when by preparing building materials raw material to calcining rubbish carries out synthetical recovery processing, Neng Gouyou
Effect reduces effective control that calcining generates gas and flying dust pollutant, realizes the innoxious of garbage disposal.
4, by carrying out denitrification, nitrification, ultrafiltration and reverse osmosis treatment to sewage, rubbish water for cleaning is carried out at purification
Reason can carry out purified treatment and reuse to the sewage and sludge generated in garbage processing procedure, save the utilization of water resource.
Detailed description of the invention
Fig. 1 is a kind of work of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle proposed by the present invention
Sequence flow diagram.
Fig. 2 is the physical property table of comparisons of the garbage derivatived fuel of different water cut.
Specific embodiment
It is next combined with specific embodiments below that the present invention is further described.
Embodiment one
Referring to Fig.1, a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle comprising pre-treatment work
Municipal refuse is sub-elected garbage raw material and garbage derivatived fuel by artificial separation, magnetic separation and mechanical sorting mode by sequence
Prepare raw material；
Rubbish rotary calcining process, by the garbage derivatived fuel that pretreatment procedure obtains prepare raw material prepare it is garbage derivatived
Fuel, while the garbage raw material being mixed with clay, lime stone, iron powder, and through calcined by rotary kiln system after broken
Standby building materials raw material；
Postprocessing working procedures carry out the flying dust and flue gas of the calcining generation of the rotary kiln by way of dedusting and chemical reaction
Processing；
Sewage purification process, by carrying out denitrification, nitrification, ultrafiltration and reverse osmosis treatment to sewage, to rubbish water for cleaning into
Row purified treatment.
Wherein, pretreatment procedure specifically: municipal refuse by collect pull in after first weighbridge office weigh, reach discharging
It is discharged into feed bin after platform and enters artificial separation platform through the transmission belt of bin bottom, first consolidates through artificial separation by be easy to select
Waste is selected, including the article and part waste paper and waste plastics that can directly recycle；Then pass through magnetic separator for metal
Separate, iron recoverable or as building materials raw material production needed for iron powder use；Rotary screen presses material particular diameter size
By thick, thin feed separation, then the bulky material separated is separated waste paper and waste plastics with coarse stone using winnowing machine,
The lighter organic matter of density is gone out by the differential separation of density by material using jigging sorting machine to tiny material and density is heavier
Inorganic matter wherein includes stone, glass, ceramics, concrete block, ashes and sand in inorganic matter；Artificial separation and selection by winnowing are obtained
To waste paper, the waste plastics coarse stone that is dried by vacuum drier, and selection by winnowing and jigging are sorted and
The heavier inorganic matter of density is crushed to obtain garbage raw material by impact crusher.
Wherein, rubbish rotary calcining process specifically: the organic matter for obtaining pretreatment procedure is done by drying machine
After dry, crushed to obtain the organic particle of uniform particle sizes using pulverizer, the drying for then obtaining pretreatment procedure
Waste paper and waste plastics, which are stirred with organic particle by mixing machine, to be mixed, finally by mixed organic particle, waste paper
Garbage derivatived fuel is prepared by molding machine with waste plastics.
Wherein, rubbish rotary calcining process further include: the garbage raw material that obtains pretreatment procedure and clay, lime stone,
After iron powder is mixed, crushed by ball mill, smashed mixture by Pneumatic conveying pipeline be sent into head tank into
Row stands deposition, and bottoms material in head tank is sent into material homogenizer tank by Pneumatic conveying pipeline and is homogenized processing, so
Afterwards by pipeline by the high-end kiln tail of the feedstock transportation of homogenizing to rotary kiln, while through coal injection pipe by low side kiln hood input fuel oil,
Lime-ash and garbage derivatived fuel；The raw material of homogenizing rotates what rolling in circumferentially was moved along axial direction to low side kiln hood with cylinder
It absorbs heat simultaneously to be gradually warmed up, is burnt into clinker in firing zone, enters cooler after cooling zone is cooling and continue to cool down, after cooling
Clinker homogenizing is stirred by blender, gypsum and being passed through in pulverizer be then added in clinker crush and be prepared into
To building materials raw material.
Wherein, postprocessing working procedures specifically: the flue gas for generating rotary kiln is sent into electrostatic precipitator by pipeline, utilizes height
Press cathode generate corona effect, make by waste exhaust gases molecular ionization, the negatively charged positive plate sorption by dust arrester of grit
And neutralize, after a period of time, the grit on pole plate drops down onto dust funnel, can remove the large-size particles in flue dust；
Then flue gas enters spray column and neutralization reaction occurs for the basic agent of penetrating, removes sulfur dioxide and hydrogen chloride gas；Heating
The flue gas that device comes out spray column heats, and is then introduced into sack cleaner, and spray into pulverized limestone and activity
Charcoal comes trap heavy metals and two uh English, makes filter bag of the exhaust gas by sack cleaner, is attached to particulate contaminant on filter layer
It is adsorbed with pulverized limestone and active carbon, and timing is to vibrate, air-flow back washing or pulsation backwashing manner removing are attached to filter bag
On particulate contaminant；Then the heat exchanger for pressurizeing through air-introduced machine to flue gas, while connecting with rotary kiln carries out flue gas
Ammonia is heated and be added, then imports reductor and removes denitrification, the gas after reductor restores is discharged by fume extractor,
And the content of each pollutant of flue gas in fume extractor is carried out in fact by the way that flue gas online monitoring system is arranged in fume extractor
When monitor.
Wherein, sewage purification process specifically: by service sink, primary rotary screen water concentrator, winnowing machine and jigging sorting machine
The sewage of collection imports in conditioning tank, carries out the adjusting of water quality and water temperature to sewage according to the pH value of sewage and temperature；It will adjust
It saves sewage in pond to import in primary denitrification pond by pipeline, by denitrogenation strain under anaerobic by nitre in denitrification pond
State nitrogen is converted into nitrogen；After reacting a period of time, sewage is imported in primary nitrification tank, aerobic microbiological decomposing organic matter impurity
In mineralized nitrogen be nitrate nitrogen, aerobic reaction for a period of time after, by sewage import secondary denitrification pond, in secondary nitrification tank according to
Secondary progress denitrification and nitrification processing；Treated, and sewage is passed through in ultrafiltration solution tank carries out purified treatment, to sludge and sewage
It is separated, the sewage after separation is passed through in concentration tank, carries out concentration except salt treatment to sewage；Sewage is passed sequentially through into primary RO
Processor, secondary RO processor carry out purified treatment, import in clear water reserviors clear liquid after processing and are used for the clear of additional clean rubbish
Wash pool.
Embodiment two
Postprocessing working procedures further include: the flying dust for generating rotary kiln is sent into flying dust collecting-tank by pipeline, and slurries are passed through mud
Stock pump imports in primary reaction pond, and sodium carbonate is added into primary reaction pond；Slurries are sent by pipeline after reaction a period of time
Enter in primary clarifier, after precipitating a period of time, clear liquid is sent into secondary reaction pond by water pump, is added into secondary reaction pond
Heavy metal chelating agent；Slurries are sent into post-precipitate pond by pipeline after reacting a period of time, after precipitating a period of time, clear liquid
It is sent into filter device by water pump and further removes graininess impurity in waste water；Primary clarifier and post-precipitate pond it is heavy
The bottom material in shallow lake is dried to obtain lime-ash by drying machine after carrying out dehydration separation by solid-liquid separator, by lime-ash and combustion
Oil and garbage derivatived fuel are sent into rotary kiln together to be handled, and the liquid after dehydration separation imports primary reaction pond and located again
Reason；Water derived from filter device is pumped to enrichment facility by water, carries out concentration except salt treatment, after desalination to filtered waste water
Desalination water be back in flying dust collecting-tank, remaining a small amount of high-salt concentrated, which is shunk, to be sent into evaporating column and is evaporated, and evaporating column passes through
The heat exchanger connecting with rotary kiln is heated.
Embodiment three
Control in mixed organic particle, waste paper and waste plastics containing (according to mass percent meter) 40% organic matter powder,
20% waste paper and 40% waste plastics, and control the garbage derivatived fuel moisture content (according to mass percent meter) be 9%~
13%。
Meanwhile selecting the basic agent sprayed into spray column is specially sodium hydroxide.
Selecting sodium carbonate amount is 40~70 kilograms of slurries dosage per ton, and the heavy metal chelating agent is sulphide amino formic acid
Salt, 1~5 kilogram of clear liquid dosage per ton.
Heat exchanger heats evaporating column by a part of high-temperature flue gas of extraction rotary kiln, high in evaporating column
Saliferous condensed water is conducted heat rapidly, is evaporated, and liquid portion is returned in electrostatic precipitator in the form of the gaseous state of vapor and carried out again
Secondary purified treatment, the solid salt evaporated all recycle.
The present invention can sub-elect garbage raw material and garbage derivatived combustion by artificial separation, magnetic separation and mechanical sorting mode
Material prepares raw material, the raw material for preparing for the garbage derivatived fuel that pretreatment procedure obtains then is prepared garbage derivatived fuel, together
When garbage raw material is mixed with clay, lime stone, iron powder, and prepare building materials raw material through calcined by rotary kiln after broken,
The flying dust and flue gas of the calcining generation of rotary kiln are handled by way of dedusting and chemical reaction, finally by sewage
Denitrification, nitrification, ultrafiltration and reverse osmosis treatment are carried out, purified treatment is carried out to rubbish water for cleaning；Not only make municipal refuse
It is converted into building materials raw material, so that municipal refuse is able to carry out Energy Resources Service's utilization, the utilization rate of municipal refuse, and energy is greatly improved
It is enough that purified treatment and reuse are carried out to the sewage generated in garbage processing procedure, save the utilization of water resource.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle, which is characterized in that including pre-treatment
Municipal refuse is sub-elected garbage raw material and garbage derivatived fuel by artificial separation, magnetic separation and mechanical sorting mode by process
Prepare raw material；
Rubbish rotary calcining process, by the garbage derivatived fuel that pretreatment procedure obtains prepare raw material prepare it is garbage derivatived
Fuel, while the garbage raw material being mixed with clay, lime stone, iron powder, and through calcined by rotary kiln system after broken
Standby building materials raw material；
Postprocessing working procedures carry out the flying dust and flue gas of the calcining generation of the rotary kiln by way of dedusting and chemical reaction
Processing；
Sewage purification process, by carrying out denitrification, nitrification, ultrafiltration and reverse osmosis treatment to sewage, to rubbish water for cleaning into
Row purified treatment.
2. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 1,
Be characterized in that: the pretreatment procedure specifically: municipal refuse by collect pull in after first weighbridge office weigh, reach discharging
It is discharged into feed bin after platform and enters artificial separation platform through the transmission belt of bin bottom, first consolidates through artificial separation by be easy to select
Waste is selected, including the article and part waste paper and waste plastics that can directly recycle；Then pass through magnetic separator for metal
Separate, iron recoverable or as building materials raw material production needed for iron powder use；Rotary screen presses material particular diameter size
By thick, thin feed separation, then the bulky material separated is separated waste paper and waste plastics with coarse stone using winnowing machine,
The lighter organic matter of density is gone out by the differential separation of density by material using jigging sorting machine to tiny material and density is heavier
Inorganic matter wherein includes stone, glass, ceramics, concrete block, ashes and sand in inorganic matter；Artificial separation and selection by winnowing are obtained
To waste paper, the waste plastics coarse stone that is dried by vacuum drier, and selection by winnowing and jigging are sorted and
The heavier inorganic matter of density is crushed to obtain garbage raw material by impact crusher.
3. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 1,
It is characterized in that: the rubbish rotary calcining process specifically: the organic matter for obtaining pretreatment procedure is done by drying machine
After dry, crushed to obtain the organic particle of uniform particle sizes using pulverizer, the drying for then obtaining pretreatment procedure
Waste paper and waste plastics, which are stirred with organic particle by mixing machine, to be mixed, finally by mixed organic particle, waste paper
Garbage derivatived fuel is prepared by molding machine with waste plastics.
4. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 3,
Be characterized in that: the rubbish rotary calcining process further include: the garbage raw material that obtains pretreatment procedure and clay, lime stone,
After iron powder is mixed, crushed by ball mill, smashed mixture by Pneumatic conveying pipeline be sent into head tank into
Row stands deposition, and bottoms material in head tank is sent into material homogenizer tank by Pneumatic conveying pipeline and is homogenized processing, so
Afterwards by pipeline by the high-end kiln tail of the feedstock transportation of homogenizing to rotary kiln, while through coal injection pipe by low side kiln hood input fuel oil,
Lime-ash and garbage derivatived fuel；The raw material of homogenizing rotates what rolling in circumferentially was moved along axial direction to low side kiln hood with cylinder
It absorbs heat simultaneously to be gradually warmed up, is burnt into clinker in firing zone, enters cooler after cooling zone is cooling and continue to cool down, after cooling
Clinker homogenizing is stirred by blender, gypsum and being passed through in pulverizer be then added in clinker crush and be prepared into
To building materials raw material.
5. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 1,
It is characterized in that: the postprocessing working procedures specifically: the flue gas for generating rotary kiln is sent into electrostatic precipitator by pipeline, utilizes height
Press cathode generate corona effect, make by waste exhaust gases molecular ionization, the negatively charged positive plate sorption by dust arrester of grit
And neutralize, after a period of time, the grit on pole plate drops down onto dust funnel, can remove the large-size particles in flue dust；
Then flue gas enters spray column and neutralization reaction occurs for the basic agent of penetrating, removes sulfur dioxide and hydrogen chloride gas；Heating
The flue gas that device comes out spray column heats, and is then introduced into sack cleaner, and spray into pulverized limestone and activity
Charcoal comes trap heavy metals and two uh English, makes filter bag of the exhaust gas by sack cleaner, is attached to particulate contaminant on filter layer
It is adsorbed with pulverized limestone and active carbon, and timing is to vibrate, air-flow back washing or pulsation backwashing manner removing are attached to filter bag
On particulate contaminant；Then the heat exchanger for pressurizeing through air-introduced machine to flue gas, while connecting with rotary kiln carries out flue gas
Ammonia is heated and be added, then imports reductor and removes denitrification, the gas after reductor restores is discharged by fume extractor,
And the content of each pollutant of flue gas in fume extractor is carried out in fact by the way that flue gas online monitoring system is arranged in fume extractor
When monitor.
6. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 5,
It is characterized in that: the postprocessing working procedures further include: the flying dust for generating rotary kiln is sent into flying dust collecting-tank by pipeline, will be starched
Liquid is imported in primary reaction pond by slush pump, and sodium carbonate is added into primary reaction pond；Slurries are led to after reaction a period of time
Piping is sent into primary clarifier, and after precipitating a period of time, clear liquid is sent into secondary reaction pond by water pump, to secondary reaction
Heavy metal chelating agent is added in pond；Slurries are sent into post-precipitate pond by pipeline after reacting a period of time, when precipitating one section
Between after, clear liquid by water pump be sent into filter device in further graininess impurity in waste water is removed；Primary clarifier and secondary
The bottom material of the precipitating of sedimentation basin is dried to obtain lime-ash by drying machine after carrying out dehydration separation by solid-liquid separator,
Lime-ash is sent into rotary kiln together with fuel oil and garbage derivatived fuel and is handled, the liquid after dehydration separation imports primary reaction pond
It is handled again；Water derived from filter device is pumped to enrichment facility by water, carries out concentration desalination to filtered waste water
It handling, the desalination water after desalination is back in flying dust collecting-tank, and remaining a small amount of high-salt concentrated shrink is sent into evaporating column and is evaporated,
Evaporating column is heated by the heat exchanger connecting with rotary kiln.
7. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 1,
It is characterized in that: the sewage purification process specifically: by service sink, primary rotary screen water concentrator, winnowing machine and jigging sorting machine
The sewage of collection imports in conditioning tank, carries out the adjusting of water quality and water temperature to sewage according to the pH value of sewage and temperature；It will adjust
It saves sewage in pond to import in primary denitrification pond by pipeline, by denitrogenation strain under anaerobic by nitre in denitrification pond
State nitrogen is converted into nitrogen；After reacting a period of time, sewage is imported in primary nitrification tank, aerobic microbiological decomposing organic matter impurity
In mineralized nitrogen be nitrate nitrogen, aerobic reaction for a period of time after, by sewage import secondary denitrification pond, in secondary nitrification tank according to
Secondary progress denitrification and nitrification processing；Treated, and sewage is passed through in ultrafiltration solution tank carries out purified treatment, to sludge and sewage
It is separated, the sewage after separation is passed through in concentration tank, carries out concentration except salt treatment to sewage；Sewage is passed sequentially through into primary RO
Processor, secondary RO processor carry out purified treatment, import in clear water reserviors clear liquid after processing and are used for the clear of additional clean rubbish
Wash pool.
8. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 3,
It is characterized in that: containing (according to mass percent meter) 40% organic matter powder in mixed organic particle, waste paper and waste plastics
Material, 20% waste paper and 40% waste plastics, and the moisture content (according to mass percent meter) for controlling the garbage derivatived fuel is 9%
~13%.
9. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 5,
Be characterized in that: the basic agent sprayed into the spray column is specially sodium hydroxide.
10. a kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle according to claim 6,
Be characterized in that: the sodium carbonate amount is 40~70 kilograms of slurries dosage per ton, and the heavy metal chelating agent is sulphide amino first
Hydrochlorate, 1~5 kilogram of clear liquid dosage per ton.
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