CN207279637U - The processing system of house refuse - Google Patents
The processing system of house refuse Download PDFInfo
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- CN207279637U CN207279637U CN201721101727.4U CN201721101727U CN207279637U CN 207279637 U CN207279637 U CN 207279637U CN 201721101727 U CN201721101727 U CN 201721101727U CN 207279637 U CN207279637 U CN 207279637U
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Abstract
The utility model provides a kind of domestic garbage treating system, including closed preprocessing station, drying grinding system and cement kiln；In the closed preprocessing station rubbish material pit, Cylinder bag-broken screening machine, cyclopentane gas detector, air classifier, magnetic separation and eddy current separator, repository and conveyer are disposed with by garbage processing procedure；The drying grinding system includes single-drive rubbish roll squeezer, scattering grader, vertical garbage drying oven and tubular type dryer.System provided by the utility model can effectively overcome the negative effect factor in cement kiln procreative collaboration processing rubbish, the rationally waste liquid and moisture in processing rubbish, the various effective elements that effectively control rubbish is brought into, avoid influencing the operating mode of cement kiln, secondary pollution risk is completely eliminated, it is environmental-friendly, safety in production.
Description
Technical field
It the utility model is related to technical field of domestic garbage treatment, and in particular to a kind of processing system of house refuse.
Background technology
Cement kiln collaboration processing application of city life garbage refers to by high temperature incineration and cement clinker mineral high temperature sintering mistake
Cheng Shixian solid waste poisons the Waste disposal means of the purpose of characteristic decomposition, degraded, elimination, deactivation and saneization.It has
Have applied widely, consumption amount it is big, to various wastes again very strong adaptability, thermal capacity is big, thermal inertia is big and heat transfer effect
The high technical advantage of rate.The core of cement kiln synergic processing application of city life garbage technology is to make to utilize in the production process of cement
Combustible component and grey residue material in house refuse, waste, using appropriate technical solution, make garbage harmless, decrement
Change, recycling and energy.
In recent decades, cement kiln synergic processing solid waste is quickly grown, State Council《On accelerating cement industry structure
Some opinions of adjustment》Middle proposition：" standards system is improved on the basis of abundant experimental study, guiding cement industry science, close
Reason utilizes and processing discarded object ".Only the Eleventh Five-Year Plan period, cement industry has been built up a collection of using solid waste more than 400,000,000 tons
The show-how engineering of the innoxious cooperative disposal domestic waste of cement kiln, municipal sludge and all kinds of solid waste.《Basel
Pact》Provision in mention, " cooperative disposal hazardous waste has been considered as the processing of environmental sound and arranges in cement production process
Apply "；Cement kiln synergic processing solid waste technology has had been widely recognized and has applied in western developed country.Issue within 2014
Cloth《Cement kiln synergic processing solid waste technical specification》For cement kiln synergic processing solid waste specify that basic principle and
Technique direction.
At present, cement kiln synergic processing solid waste technology is also developed rapidly, from various data and pilot production
The substantially following several technical thoughts of route reflection：
1st, raw material (fuel) are substituted
Rubbish is directly incorporated into unclassified stores derivative raw material or low-value fuel is made, then carry out cement kiln processing；It is this
Technology path needs locality to utilize the various discarded objects that can participate in house refuse dispensing.
2nd, be arranged in parallel waste incinerator by kiln
Be arranged in parallel waste incinerator outside cement kiln, using cement kiln heat smoke or radiant heat it is combustion-supporting or to rubbish dry
It is dry, and the flue gas after waste incineration, residue, percolate etc. are disposed respectively using cement kiln.Such as middle letter heavy industry, Jian Yan institutes, close
The technology of the units such as fertile institute.The technological process of various modes is similar, and difference essentially consists in the form of waste incinerator.Conch
CKK uses rubbish vaporisation techniques, and rubbish is burned in furnace interior point, and part vaporizes.The principle of overall coordination disposal is identical.
3rd, it is arranged in series waste incinerator
Waste incinerator is arranged in series on line in cement kiln, i.e., rubbish is set on cement kiln head or the hot air duct of kiln tail
Rubbish incinerator, the Smith's hot plate stove technology such as installed additional using tertiary-air pipe.The burning of rubbish is set most directly to participate in cement raw
There is production.
4th, rubbish method for pretreating
1. strengthening house refuse pretreatment, after classifying such as middle material technology to rubbish, water is utilized according to the characteristics of rubbish
Mud raw material grinds or with cement kiln incineration disposal.This method can be recycled for the not rubbish Jing Guo primary election after classification
Useful component, for, by the rubbish selected, technique is cumbersome, increases production cost by primary election or by utility.
2. garbage to substitute fuel is prepared using microbial fermentation desiccation, for cement kiln alternative fuel, such as Hua Xin Wuxue City skill
Art.Although the method for this fermentation process rubbish contributes to the burning of rubbish, the combustion heat value of rubbish can be reduced.Simultaneously because
It can increase peculiar smell using rubbish fermentation and foul smell discharges.
The application of various cooperative disposal technologies, all be unable to do without the pretreatment to ecosystem house refuse, such as manually or mechanically
Sort to reduce building waste, metal etc.；Level-one or two-stage crushing are in order to convey, feeding；Medicament or mechanical dehydration are to mitigate
Into the moisture of subsequent processing device.The depth that differs only in degree of the different process route to pretreatment.No matter using upper
Any process route is stated, as long as following the principle of innoxious, environmental-friendlyization disposal, it is necessary to consider rubbish into each after factory
The processing of waste liquid and foul smell that link produces, it is however generally that, all it can send them back to quality coal in cement kiln systems again in a different manner.
Even if dewatered rubbish is by burning or vaporizing, the moisture not taken off is still entered in kiln with gaseous state, to follow-up cement kiln system
System produces certain influence.
Cooperateed with from manufacture of cement and negatively affect factor angle analysis caused by processing rubbish, new dry process rotary kiln one is
The various harmful elements (including potassium, sodium, chlorine, sulphur and heavy metal etc.) that rubbish is brought into are controlled to technique in product yield and quality, kiln
The influence of situation etc.；Two are also to the substantial amounts of moisture that control cooperative disposal is brought into, avoid kiln system humidity of flue gas from rising, squeeze
The space of former hot-air is account for, potentially have impact on the normal operation of kiln system.Also be exactly above-mentioned reason, the cement of equal conditions
The amount that kiln system can handle house refuse receives different degrees of limitation.
For harmful element, harmful substance piece-rate system is added when disposal rubbish is mentioned in CKK gasification burner incineration technologies, it is real
Border is exactly bypass.It is that the excessive chlor-alkali of new dry process rotary kiln processing or sulphur alkali material cause water using bypass technology
The very ripe technology of mud kiln tail preheater Coating clogging.For because burn away the refuse can caused by harmful substance it is exceeded using bypass skill
Art is feasible.
The potential moisture content of rubbish is high, and generally 40~50%, high meeting is more than 60%, and large quantity of moisture can cause in burning
Rubbish is difficult to burn, and a large amount of vapor produced in burning can increase cement kiln flue gas humidity, system temperature is reduced, to cement kiln
Safe handling and energy-saving it is negatively affected.It can be easy to absorb especially for decomposing the CaO decomposed in kiln
Moisture, and the resolution ratio into kiln CaO is reduced, so as to influence cement kiln yield.Therefore, in garbage incineration process, largely set
Independent waste incinerator is put to burn away the refuse, and the technics comparing directly burned in cement kiln is difficult to realize.
For rubbish independence burning process since rubbish is more fire retardant, and in order to eliminate the influence of bioxin, waste incineration will
Ask with more than 850 DEG C of incineration temperature, therefore must increase combustion-supporting fuel in burning could complete, this also cannot be abundant
Using cement kiln high-temperature alkaline environment advantage and cause the increase of refuse disposal cost and capital expenditure.Therefore, it is
The peculiar advantage of cement kiln collaboration processing rubbish is given full play to, reduces capital expenditure, garbage disposal ability is improved and improves rubbish
The adaptability of rubbish, is badly in need of new domestic garbage treating system.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of domestic garbage treating system, which can be effective gram
The negative effect factor in cement kiln procreative collaboration processing rubbish is taken, rationally handles the waste liquid and moisture in rubbish, effectively control
The various effective elements that rubbish processed is brought into, avoid influencing the operating mode of cement kiln, secondary pollution risk are completely eliminated, environmental-friendly,
Safety in production.
To reach above-mentioned purpose, the utility model provides following technical solution：
The utility model provides a kind of domestic garbage treating system, including closed preprocessing station, drying grinding system and
Cement kiln；
Rubbish material pit is disposed with by garbage processing procedure, Cylinder bag-broken sieves in the closed preprocessing station
Machine, cyclopentane gas detector, air classifier, magnetic separation and eddy current separator, repository and conveyer；The rubbish material pit goes out
Material mouth is connected with the feed inlet of Cylinder bag-broken screening machine；The discharge port of the Cylinder bag-broken screening machine and cyclopentane gas detector
Feed inlet connects；The discharge port of the cyclopentane gas detector and the feed inlet of air classifier connect, and the air classifier goes out
Material mouth is connected with the feed inlet of magnetic separation and eddy current separator；The discharge port and repository of the magnetic separation and eddy current separator
Feed inlet connects；
The drying grinding system includes single-drive rubbish roll squeezer, scattering grader, vertical garbage drying oven and tubular type
Dryer；
The material outlet of repository passes through conveyer and the thing of single-drive rubbish roll squeezer in the closed preprocessing station
Expect import connection；The material outlet of the single-drive rubbish roll squeezer is connected with the material inlet of vertical garbage drying oven；
The air inlet of the vertical garbage drying oven is connected with the hot-blast outlet of cement kiln；
The material outlet of the vertical garbage drying oven is connected with the material inlet of scattering grader；The vertical garbage dries
The air outlet of dry stove is connected with the air inlet of scattering grader；
The material outlet of the scattering grader air inlet and single-drive rubbish roller with the air hose of tubular type dryer respectively
The material inlet connection of press；
The air outlet of the air hose of the tubular type dryer and the air inlet of rotoclone collector connect,
The air outlet of the rotoclone collector is connected with the air inlet of bypass system, the air outlet of bypass system
It is connected with the air inlet of high-temperature blower；The air outlet of the high-temperature blower is connected with the air inlet of kiln tail afterheat generating system；
The material outlet of the rotoclone collector is connected through rubbish material storehouse with the material inlet of cement kiln end smoke-box；
The gas outlet of the cement kiln end smoke-box is connected with the air inlet of kiln tail pre-heating system；The cement kiln end smoke-box
Discharge port is connected with cement producing line.
Further, air inlet of the gas outlet of the closed preprocessing station through exhaust fan and deodorization and off-flavor elimination device
Connection；The gas outlet of the deodorization and off-flavor elimination device is connected with kiln tail coal burner primary air fan.
Further, the discharge port of the magnetic separation and eddy current separator also goes out with filling the lime silo of anti-corrosion modifying agent
Material mouth is connected by conveyer belt.
Further, hot wind of the hot wind of the cement kiln from cement kiln end smoke-box bypass, kiln tail cogeneration
The hot wind of system.
Further, pass through between the material inlet of the material outlet of the scattering grader and single-drive rubbish roll squeezer
Elevator connects.
Compared with the prior art, the utility model has following advantage：
The utility model provides a kind of domestic garbage treating system, by sub-elect and can return after crushing house refuse
After the rubbish of receipts, add anti-corrosion modifying agent and stored；The rubbish of storage is carried out through crushing, after the hot-air seasoning grinding of cement kiln
Powder is selected, finely ground particle substance is burned.By being burned after rubbish is carried out drying grinding during this, rubbish is reduced as far as possible
The adverse effect that moisture or rubbish exhaust gas bring quality coal in cement kiln systems safe handling, reduces secondary pollution, it is ensured that house refuse
Innoxious, inexpensive, Low investment processing, meets the direction of sustainable development circular economy.
By being that waste liquid and foul smell, crushing large particulate matter are handled outside cement kiln in closed preprocessing station, avoid
The moisture not taken off enters cement kiln, avoids the influence to quality coal in cement kiln systems；
Rubbish is sorted by air classifier, magnetic separation and eddy current separator, the repeatable rubbish utilized of recycling,
Rubbish is avoided to bring influence of the various harmful elements to cement kiln into；Rubbish is controlled into cement kiln by scattering grader
Grain and vertical garbage drying oven dry rubbish, avoid the excessive sky for tying up former hot-air of quality coal in cement kiln systems humidity of flue gas
Between, drying rubbish is carried out outside cement kiln, realizes that moisture is isolated from outside cement kiln in rubbish to greatest extent, reduces to cement kiln system
The potential impact of system；
The high temperature for low temperature hot wind and kiln tail the smoke-box discharge discharged by using the kiln tail afterheat generating system in cement kiln
Hot wind mixing is dried as drying hot wind in vertical garbage drying oven, and temperature is effectively controlled less than 400 DEG C, makes rubbish only
It is dehydrated, is not burnt substantially, avoid producing the pernicious gases such as HCl, is reducing harmful element to a certain degree to cement kiln operating mode
Influence and harm to cement clinker quality, the hot waste gas of cement kiln can be efficiently used, save the energy；Exhaust gas after drying with
Enter kiln tail afterheat generating system after high-temperature flue gas mixing, the ability of cogeneration can be improved；
Little particle rubbish is collected by rotoclone collector and little particle rubbish is sent into cement kiln by rubbish material storehouse
Burned, the moisture and particle diameter of rubbish are all effectively controlled, beneficial to the decomposition combustion of rubbish, beneficial to the burning of clinker
Into effectively eliminating the pernicious gas of waste incineration generation, such as bioxin.
The processing system of the utility model makes full use of the peculiar advantage of cement kiln, and being realized with reference to garbage system reduces capital construction
Investment, improves garbage disposal ability and improves the applicability of rubbish, is the processing system of innoxious, recycling and low cost.
The processing procedure of whole refuse classification in sealed environment, after deodorization and peculiar odor treatment realize by the exhaust gas of generation
Cleaning discharges and will not cause secondary atmosphere pollution；The residue that Refuse Incineration Process produces is used for clinker, can effectively carry out
Secondary use, the exhaust gas utilization kiln tail gas processing system processing of generation, is completely eliminated the risk of secondary pollution, realize environment and
Production safety.
The processing system of the utility model, technique is simple, reliable, and using existing quality coal in cement kiln systems, operating cost is low, tool
There is sustainability.
Brief description of the drawings
The structure diagram of Fig. 1 domestic garbage treating systems
Embodiment
Below in conjunction with the utility model specific embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu, be fully described by, it is clear that and described embodiment is only the part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained, shall fall within the protection scope of the present invention.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
Embodiment 1
As shown in Figure 1, the utility model provides a kind of domestic garbage treating system, including closed preprocessing station, drying
Grinding system and cement kiln；
Rubbish material pit 1 is disposed with by garbage processing procedure, Cylinder bag-broken sieves in the closed preprocessing station
Extension set 2, cyclopentane gas detector 3, air classifier 4, magnetic separation and eddy current separator 5, repository 6 and conveyer 7；The garbage storing
The discharge port in material hole 1 is connected with the feed inlet of Cylinder bag-broken screening machine 2；The discharge port of the Cylinder bag-broken screening machine 2 with
The feed inlet connection of cyclopentane gas detector 3；The discharge port of the cyclopentane gas detector 3 is connected with the feed inlet of air classifier 4, described
The discharge port of air classifier 4 is connected with the feed inlet of magnetic separation and eddy current separator 5；The magnetic separation and eddy current separator 5
Discharge port be connected with the feed inlet of repository 6, the discharge port of the magnetic separation and eddy current separator 5 is also modified with filling anti-corrosion
The discharge port of the lime silo of agent is connected by conveyer belt；The gas outlet of the closed preprocessing station is through exhaust fan and deodorization and different
The air inlet connection of taste arrester 8；The gas outlet of the deodorization and off-flavor elimination device 8 connects with kiln tail coal burner primary air fan
Connect；
The cyclopentane gas detector 3 achievees the purpose that to reduce material size, is adapted to and tears up electricity by shearing, tearing and extrude
The various waste materials and rubbish such as sub- rubbish, plastics, metal, timber, rubber tyre, pail pack, supporting plate, waste and old steel；
The magnetic separation and eddy current separator 5 select magnetic metal according to the magnetic selection ferromagnetism of metal, then utilize
Metal is more different than its electric conductivity from nonmetallic phase, in high-intensity magnetic field, generation vortex flow can be sensed in metal, this vortex flow in itself can
The magnetic field opposite with former magnetic field is produced, non-ferrous metal then can forward be leaped because the repulsive force in magnetic field acts on, realized non-with other
The separation of metallics, achievees the purpose that to separate metallics by strong magnetic and whirlpool electricity sorting；
Setting closed preprocessing station, exhaust fan, deodorization and off-flavor elimination device 8 to realize effectively prevents foreign odor gas diffusion；
It is described drying grinding system include single-drive rubbish roll squeezer 9, scattering grader 10, vertical garbage drying oven 11,
Tubular type dryer 12；
The material outlet of repository 6 passes through conveyer 7 and single-drive rubbish roll squeezer 9 in the closed preprocessing station
Material inlet connects；The material outlet of the single-drive rubbish roll squeezer 9 is connected with the material inlet of vertical garbage drying oven 11；
Material is extruded and crushed by the single-drive rubbish roll squeezer 9 using high-pressure extrusion mode, passes through the material after extruding
Material cake is formed, by selecting qualified powder after scattering and grading；Inflammable constituent in refuse powder for example paper, plastic film, leaf,
The light materials material such as cloth suspends in high-speed air to be taken away, and does not interfere with crushing；Dust will not be produced in extruding crushing process；
The air inlet of the vertical garbage drying oven 11 is sent out with the air outlet of cement kiln end smoke-box bypass, kiln tail waste heat
The hot-blast outlet of electric system is connected；
The material outlet of the vertical garbage drying oven 11 is connected with the material inlet of scattering grader 10；The vertical rubbish
The air outlet of rubbish drying oven 11 is connected with the air inlet of scattering grader 10；
The material outlet of the scattering grader 10 respectively with the air inlet of the air hose 12 of tubular type dryer and elevator
Material inlet connects, and the material outlet of the elevator is connected with the material inlet of single-drive rubbish roll squeezer 9；Vertical garbage dries
Dry stove 11, scattering grader 10, tubular type drying combination, its take into account break up, grading function, can by a large amount of hot winds and have concurrently dry
Dry function；Material returns to vertical garbage drying oven 11 after being squeezed into material cake by single-drive rubbish roll squeezer 9, break up, breaks up point
Level machine 10 realize prebake, break up, sort, grinding, drying circulation, it can be ensured that drying effect；The finely ground particle substance selected
Enter back into 12 pipeline of air hose of tubular type dryer and further dry；Due to material suspended in hot wind, and material particular diameter is small,
Heat exchanger effectiveness is high, drying rate is fast, good drying effect；
The air outlet of the air hose 12 of the tubular type dryer is connected with the air inlet of rotoclone collector 13,
The air outlet of the rotoclone collector 13 is connected with the air inlet of bypass system, the outlet air of bypass system
Mouth is connected with the air inlet of high-temperature blower；The air outlet of the high-temperature blower is connected with the air inlet of kiln tail afterheat generating system；
Drying course is operated using high negative pressure air inducing, will not externally be leaked out, and all gas enter the bypass of cement kiln after dedusting
System, it is not necessary to additional dust removal installation；
Material inlet of the material outlet of the rotoclone collector 13 through rubbish material storehouse 14 and cement kiln end smoke-box 15 connects
Connect；
The gas outlet of the cement kiln end smoke-box 15 is connected with the air inlet of kiln tail pre-heating system；The cement kiln end smoke-box
15 discharge port is connected with cement producing line.
The processing step that house refuse is carried out with the processing system of the utility model is as follows：
Step 1) refuse classification：After rubbish enters closed preprocessing station using special purpose vehicle, through electronically pump-metered, spray
After mist disinfection, rubbish is discharged into after rubbish material pit and forces discharging to carry out preliminary shearing, tear through cyclopentane gas detector and squeeze
Pressure, enters back into Cylinder bag-broken screening machine and is sieved and crushed, and further sorts paper and plastics by using air classifier,
After selecting magnetic metal and nonmagnetic metal by magnetic separator and eddy current separator, in surplus materials add anti-corrosion modifying agent into
Row is sterilized and stored after disinfecting in repository；Refuse classification carries out in closed preprocessing station, is formed through exhausting
Micro-vacuum state, and it is sent into the recycling of kiln tail coal burner primary air fan after gas is carried out deodorization and peculiar odor treatment；Institute
Stating anti-corrosion modifying agent includes NaOH, CaO, KMnO4Etc. one or more therein；Rubbish can effectively be suppressed by adding anti-corrosion modifying agent
In organic matter go bad, prevent and reduce foul smell to distribute；
Step 2) rubbish is dried：Surplus materials after sorting is discharged simultaneously from the material outlet of repository bottom by forcing
Single-drive rubbish roll squeezer is sent into by conveyer after metering and carries out high-pressure extrusion crushing, enter back into vertical garbage drying oven and adopt
The hot wind discharged with cement kiln is dried；The hot wind of the cement kiln discharge is the hot wind of kiln tail afterheat generating system discharge
(temperature control is at 400 DEG C for the hot wind of hot wind (about 950 DEG C of the temperature) mixing of (about 200 DEG C of temperature) and kiln tail smoke-box bypass discharge
Below)；
Step 3) rubbish crushes：The rubbish of drying is sent into scattering grader to carry out selecting powder, through selecting powder to select small particle
Matter and large particulate matter；The discharged wind of finely ground particle substance (about 200 DEG C of temperature) is wrapped up into Gas inlet tube suspension drying, then is passed through
Rotoclone collector air draft is collected, and the wind of rotoclone collector discharge is neutralized through alkalization (mainly neutralizes harmful sour gas such as HCl
Body, chlorine and sulphur in flue gas are removed by lime or the medicament of other desulfurization and dechlorination, the alkali metal in flue gas is condensed, reaches and disappear
Except the purpose of the chlorine in wind, sulphur and alkali, the dust of collection is used for cement mixture), with the high temperature cigarette of kiln tail smoke-box bypass
Flue gas after gas mixing again with preheater discharge under high-temperature blower effect is mixed into kiln tail afterheat generating system, the wind of entrance
Temperature at 350 DEG C or so, available for generating electricity, can be conducive to save drying energy consumption and improve waste heat generating capacity；It is described big
Particulate matter goes successively to single-drive rubbish roll squeezer and carries out extruding crushing, then boosted machine returns to vertical garbage drying oven and carries out
Drying, carries out into scattering grader selecting powder after drying, and repetitive cycling is crushed, dried, selecting powder process, up to all rubbish become
Into finely ground particle substance；
Step 4) waste incineration：Finely ground particle substance feeding cement kiln end smoke-box is burned, in cement kiln end smoke-box
Temperature is generally greater than 950 DEG C, and since the meal calcining rate in cement kiln end smoke-box is more than 90%, the content of calcium oxide is high, alkalescence
By force, thus Refuse Incineration Process use high temperature alkalization burning mode, beneficial to eliminate available gas will not produce bioxin；Burn
Gas (including heat, harmful KCl and Na after burning2O and sulfate steam) realized after the processing of kiln tail gas processing system
Cleaning discharge, the residue after burning are used for clinker.
The cost that the processing system of the utility model is used is low, mainly there is some reason：
1. rubbish can add the additional of garbage disposal by Pre-sorting with utilities such as recycled plastic, paper, metals
Income.
2. rubbish drying utilizes kiln tail low temperature exhaust heat backing, rubbish drying effect can be improved, is saved because rubbish drying is made
Into heat loss, saved drying cost.Rubbish drying coal consumption 60kg marks coal/t or so can generally be saved.
Burn and rubbish additional water can be isolated from beyond kiln system 3. rubbish dries laggard kiln, not only reduce to kiln system
The influence of system, reduces because handling the required processing heat consumption of refuse moisture under cement kiln high-temperature state, meanwhile, rubbish easily fires
Burn, the surplus heat after waste incineration can be used for sinter leaching or provide cogeneration, reduces cement and burns till coal consumption.At rubbish
The production power consumption of reason system may check that as 43kwh/t.Often burning after 1 ton of rubbish deducts rubbish pretreatment power consumption still has about 75kwh/
t。
4. rubbish ashes, which all enter kiln, forms clinker, manufacture of cement material consumption is saved, has reduced clinker material cost.Rubbish
After rubbish burns, its ashes main component is SiO2、Al2O3、CaO、Fe2O3Clinker can be formed, so as to substitute cement
Raw material, saves natural resources.Ashes rate after waste incineration is 20% or so, and cement raw material can be saved after waste incineration per ton
0.2t × 1.75=0.35t.
5. construction investment is low, the financial cost of refuse disposal has been saved.The utility model refuse disposal construction investment is about
200 yuan/t. is 1/3rd or so of 600 yuan/t. of conventional rubbish incineration disposal engineering.
General garbage incineration process is not high due to the calorific value of rubbish, it is difficult to burns, is also difficult to ensure that 850 even if burning
Burned in hot environment more than DEG C, therefore, it is possible to produce the pernicious gases such as bioxin.The processing method of the utility model and
There is 950~1100 DEG C of hot environment in the cement kiln end smoke-box used in processing system, and since cement slurry decomposes
After there are substantial amounts of CaO, cause strong basicity environment, acid chlorine and sulphur for being produced for waste incineration etc. have complete neutralization effect
Fruit.Traveled further into moreover, not burning complete rubbish in cement kiln, obtain further 1100~1450 DEG C of high temperature and continue to burn
Change, have been fully processed, the ashes after waste incineration become clinker component, really realize that harmless resource utilization is handled.
In Refuse Incineration Process, it is possible to create the pernicious gas such as HCl, bioxin, by using in cement kiln end smoke-box
Middle progress, by being burned under high temperature highly basic, effectively controls the generation of the pernicious gases such as bioxin.The Cl that waste incineration produces-、
SO2Surrounded Deng sour gas by substantial amounts of CaO in cement kiln, be neutralized into CaCl rapidly2、CaSO4And enter clinker.A part with
K, Na form KCl, NaCl, K after incineration firing2SO4、Na2SO4, alkali metal sylvite and sodium salt evaporate and form gas at high temperature
Body, condensation forms solid to gas again at low temperature, to avoid low temperature from causing the skinning of preheater, blocking and cause Cl in cement-
It is exceeded and influence cement quality, it is discharged into kiln tail gas processing system, kiln tail gas processing system using by the exhaust gas in burning process
The alkali metal sylvite and sodium salt of steam condition are condensed into solid and are adsorbed in exhaust gas dust by the cyclone separator in system to be isolated
Come, for the mixing material of non-bearing engineering cement, achieve the purpose that to eliminate pernicious gas；Remaining pernicious gas that may be present
(such as NOx, SO2), it can use cement plant denitration, desulfurization equipment that qualified discharge is uniformly processed.
The sewage produced in a small amount of penetrating fluid and processing system cleaning process discharged in garbage processing procedure concentrates on rubbish
In rubbish leakage liquid pool, unified be sent into raw mill uses, without externally discharge.
The utility model processing system equipment is practical reliable, and price is low, so as to save project cost, reduces investment outlay, economical
It is profitable, there is good continuation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of domestic garbage treating system, it is characterised in that including closed preprocessing station, drying grinding system and cement
Kiln；
In the closed preprocessing station by garbage processing procedure be disposed with rubbish material pit, Cylinder bag-broken screening machine,
Cyclopentane gas detector, air classifier, magnetic separation and eddy current separator, repository and conveyer；
The discharge port of the rubbish material pit is connected with the feed inlet of Cylinder bag-broken screening machine；The Cylinder bag-broken screening machine
Discharge port and cyclopentane gas detector feed inlet connect；The discharge port of the cyclopentane gas detector and the feed inlet of air classifier connect
Connect, the discharge port of the air classifier is connected with the feed inlet of magnetic separation and eddy current separator；The magnetic separation and vortex flow point
The discharge port of machine and the feed inlet of repository is selected to connect；
The drying grinding system includes single-drive rubbish roll squeezer, scattering grader, vertical garbage drying oven and tubular type drying
Machine；
In the closed preprocessing station material outlet of repository by the material of conveyer and single-drive rubbish roll squeezer into
Mouth connection；The material outlet of the single-drive rubbish roll squeezer is connected with the material inlet of vertical garbage drying oven；
The air inlet of the vertical garbage drying oven is connected with the hot-blast outlet of cement kiln；
The material outlet of the vertical garbage drying oven is connected with the material inlet of scattering grader；The vertical garbage drying oven
Air outlet be connected with the air inlet of scattering grader；
The material outlet of the scattering grader air inlet and single-drive rubbish roll squeezer with the air hose of tubular type dryer respectively
Material inlet connection；
The air outlet of the air hose of the tubular type dryer and the air inlet of rotoclone collector connect,
The air outlet of the rotoclone collector is connected with the air inlet of bypass system, air outlet and the height of bypass system
The air inlet connection of warm air machine；The air outlet of the high-temperature blower is connected with the air inlet of kiln tail afterheat generating system；
The material outlet of the rotoclone collector is connected through rubbish material storehouse with the material inlet of cement kiln end smoke-box；
The gas outlet of the cement kiln end smoke-box is connected with the air inlet of kiln tail pre-heating system；The discharging of the cement kiln end smoke-box
Mouth is connected with cement producing line.
2. domestic garbage treating system according to claim 1, it is characterised in that the outlet of the closed preprocessing station
Mouth is connected through exhaust fan with the air inlet of deodorization and off-flavor elimination device；The gas outlet of the deodorization and off-flavor elimination device and kiln tail coal
Powder burner primary air fan connects.
3. domestic garbage treating system according to claim 1, it is characterised in that the magnetic separation and eddy current separator
The discharge port of lime silo of the discharge port also with filling anti-corrosion modifying agent is connected by conveyer belt.
4. domestic garbage treating system according to claim 1, it is characterised in that the hot wind of the cement kiln comes from cement
Hot wind, the hot wind of kiln tail afterheat generating system of kiln tail smoke-box bypass.
5. domestic garbage treating system according to claim 1, it is characterised in that the material outlet of the scattering grader
It is connected between the material inlet of single-drive rubbish roll squeezer by elevator.
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| CN201721101727.4U CN207279637U (en) | 2017-08-30 | 2017-08-30 | The processing system of house refuse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420900A (en) * | 2017-08-30 | 2017-12-01 | 长沙中硅水泥技术开发有限公司 | The processing method and processing system of house refuse |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420900A (en) * | 2017-08-30 | 2017-12-01 | 长沙中硅水泥技术开发有限公司 | The processing method and processing system of house refuse |
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Address after: 410075 D-244, No. 199 Lugu Road, Lugu Lu, high tech Zone, Changsha, Hunan Patentee after: Changsha Zhongsi Environmental Protection Technology Co., Ltd Address before: 410075 Hunan province Changsha hi tech Development Zone, Lu Valley Road No. 199 Lulong Lugu D Business Center No. 224 Patentee before: Changsha silicon cement technology development Co Ltd |