CN203771420U - Bypass generating system for co-processing wet garbage by dry method rotary kiln - Google Patents
Bypass generating system for co-processing wet garbage by dry method rotary kiln Download PDFInfo
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- CN203771420U CN203771420U CN201420203275.0U CN201420203275U CN203771420U CN 203771420 U CN203771420 U CN 203771420U CN 201420203275 U CN201420203275 U CN 201420203275U CN 203771420 U CN203771420 U CN 203771420U
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
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- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010052804 Drug tolerance Diseases 0.000 description 1
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Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a bypass generating system for co-processing wet garbage by a dry method rotary kiln. The bypass generating system comprises a garbage feeding air-locking device, a C5 feeding pipe, a kiln tail smoke chamber, a rotary kiln, a decomposing furnace, a C5 cyclone preheater, a bypass settling flue, a bypass air valve, a bypass fan, a steam boiler, a turbine, a generator, a water supplying and processing device, a grate cooler as well as a head exhaust fan, wherein the C5 feeding pipe is connected with the kiln tail smoke chamber, and the kiln tail smoke chamber is connected with the rotary kiln; the upper part of the kiln tail smoke chamber is connected with the decomposing furnace through a shrinking hole, and the garbage feeding air-locking device is connected with the C5 feeding pipe and is positioned below a plate turning air locking valve of the C5 feeding pipe; the bypass settling flue is positioned on the opposite surface of the C5 feeding pipe and is connected with the kiln tail smoke chamber, the bypass air valve is connected to the bypass settling flue, and the air outlet end of the bypass fan is connected with the bypass settling flue; the air inlet end of the bypass fan is connected with the first-row pipeline of the grate cooler through a bypass fan air valve, and the bypass settling flue is connected with the steam boiler. The bypass generating system disclosed by the utility model is capable of solving the problems that the town household garbage influences the kiln condition and the coal consumption is increased, and can effectively eliminate the problem that moisture and chlor-alkali in the garbage can paste a kiln system.
Description
Technical field
The utility model relates to application of city life garbage burning electricity generation system, relates in particular to a kind of electricity generation system containing wet application of city life garbage that is dried in dry-process rotary kiln is produced, burns.
Background technology
Domestic garbage burning electricity generation technology has been attained maturation, but investment is large first, digest and assimilate ripe China-made equipment wire gauge modelling disposal of refuse investment even if introduce technology and still reach 40～600,000 yuan/ton, the highest Advanced Equipment of heat utilization efficiency for Bian, scale is processed the every degree investment of big city domestic garbage burning electricity generation unit production capacity the most stable, that calorific value is high and is still reached 10000～20000 yuan/degree, much higher compared with 7000 yuan of coal electricity investments/spend, and must oil firing igniting or combustion-supporting; Second to small-scale or very on a small scale as 150 ton per days are following, composition fluctuation is large, distribution that calorific value is on the low side, that moisture is higher wide Er Duo city county and town's house refuse adaptability is very poor, conventionally all obtains coal oil jetting combustion, and its economy extreme difference; Three must, in the face of venomous injurants such as cinder, flying dust, leachate, heavy metal, bioxin, may produce secondary pollution because of reasons such as technological equipments at any time; Moreover high from power consumption, in most advanced Systems Theory, be 8%, actually reach 12～15%.Based on these actual conditions, the waste incineration and generating electricity of China is actually interspersing and the running of interests of big and medium-sized cities policy.
Aspect dry-process rotary kiln associated treatment house refuse, domestic Jinyu, conch, Hua Xin, China Resources, the strong Cement Group enterprises such as platform mud, introducing or using for reference Denmark, Sweden, Germany, Japan waits on the basis of foreign technology experience, obtain huge achievement through Application and Development for many years, and form characteristic technology and device separately, but its basic technology route can be summarized as two kinds, the first is in cement plant, to utilize the high wind-warm syndrome waste heat of grate-cooler first to burn away the refuse and supporting waste gas purification facility with professional refuse incinerator system, lime-ash after waste incineration is prepared burden to reach associated treatment for manufacture of cement, the second is the build a set of professional refuse incinerator system that is connected that utilizes grate-cooler high wind-warm syndrome waste heat parallel with rotary kiln, or add again the drying system of applying mechanically grate-cooler waste gas residual heat, garbage disposal waste gas enters kiln system, and lime-ash is prepared burden to reach associated treatment for manufacture of cement.Facts have proved: the first process route is produced essentially no impact to dry-process rotary kiln, but investment is large, day 300～400 tons of rubbish of processing are invested up to several hundred million units; The second process route cement associated treatment as new in China rubbish technique, invest relatively little, process 300～400 tons of rubbish investments day and still reach 8000～12,000 ten thousand yuan, this is the extremely bad solution of economy for county and town of distribution face width compare little city house refuse amount and cement production enterprise, and causes because enter kiln system containing wet waste gas that kiln system operating mode is influenced, heat consumption of clinker increases.And because all utilized the high wind-warm syndrome waste heat of grate-cooler, cement kiln residual heat generating is slightly affected.This two large class associated treatment binman process is thought not too applicable China's actual conditions by industry to a certain extent and is queried.Therefore, in the urgent need to a kind of adapt to wide, invest little, do not affect kiln condition, do not increase technique and the system of the associated treatment rubbish of grog coal consumption.
On the other hand, cement plant utilizes the cement kiln residual heat generating technology of 320～350 DEG C of waste gas recovery waste heats that kiln hood chamotte cooler (approximately 450 DEG C) and kiln tail preheater discharge very ripe and universal, but still can not utilize cooling head to arrange a large amount of low temperature waste gas waste heats, and because power station parasitizes manufacture of cement, electrification technique as well as and manufacture of cement are different, manufacture of cement is the feature of straight line, make its sectional transformation, the leeway of proposing product transformation is very large, and electrification technique as well as is the circle of a sealing, add steam turbine and generator and can not propose the restriction of producing transformation, except process procedure problem and problem device, once the possibility of after power station is constructed and put into operation, it being proposed to product transformation does not have.That is: can associated treatment rubbish and can make full use of rubbish heat energy and increase under the condition of generated energy through transformation at supposition cement kiln, original afterheat generating system can not increase the generating capacity of design, simultaneously, because the exhausting amount of the high-temperature blower after kiln tail preheater has specified limit value, kiln hood grate-cooler also limits, and extracts exhaust gas parameters calculate the generated energy of the electricity generation system of selecting and also limit according to kiln hood grate-cooler finiteness high-temp waste gas and kiln tail high-temperature blower.On the other hand, even if supposition rubbish has produced extra waste gas residual heat in kiln system, but can not increase the waste gas residual heat amount that high-temperature blower extracts, can not increase the generated energy of design, on the contrary due to rubbish contain moisture can affect in kiln with dore furnace in two fiery burnings, increase coal consumption, the rubbish of low temperature and water will have a strong impact on kiln temperature and furnace temperature, affect the burning of coal dust, and by preheater powder, also by making the remarkable variation of powder mobility produce sticky blocking up, (it is sticky stifled that row those skilled in the art and relevant paper habituation think that the chlor-alkali in rubbish causes to excessive water vapour, the volatilization condensation point of chlor-alkali is at approximately 700 DEG C, at pre-heating system in 3 grades and 4 grades of preheater zones, and chlor-alkali in rubbish mainly from kitchen from thing, and in fact domestic kitchen excess substantially for raising or being processed to high added value grease, China's house refuse chlor-alkali impact is in fact very limited, this is chemical analysis and practice confirmation).
Obviously, having solved cement kiln in the urgent need to a kind of brand-new technique and system can associated treatment rubbish and make full use of garbage power.
Utility model content
Technical problem to be solved in the utility model is, provide a kind of dry-process rotary kiln associated treatment containing wet refuse bypass electricity generation system for the deficiencies in the prior art, this system can solve the impact of application of city life garbage on kiln condition and the increase problem of coal consumption, the sticky stifled problem that effectively in elimination rubbish, moisture and chlor-alkali cause kiln system, and can excess produce 1000～1200 DEG C of stable high-temp waste gas waste heats and do not affect original afterheat generating system for stable electric generation, eliminate waste residue completely, waste gas, waste water and venomous injurant discharge, and be adapted to the house refuse of county and town of city different scales and proterties, invest little, good economy performance.
The utility model solves the technical scheme that the Bian of its technical problem institute uses: a kind of dry-process rotary kiln associated treatment, containing wet refuse bypass electricity generation system, comprises rubbish feeding airlock, C5 tremie pipe, kiln tail smoke-box, rotary kiln, dore furnace, C5 cyclone preheater, bypass sedimentation flue, bypass air-valve, bypass blower fan, steam boiler, steam turbine, generator, for processing water device, grate-cooler and an exhaust blower, described rubbish feeding airlock is connected with C5 tremie pipe, be positioned at below the tilting plate lock air-valve of C5 tremie pipe, described C5 tremie pipe is connected with kiln tail smoke-box, described kiln tail smoke-box is connected with rotary kiln, described kiln tail smoke-box top is connected with dore furnace through reducing, described bypass sedimentation flue is positioned at C5 tremie pipe opposite, and be connected with kiln tail smoke-box, described bypass air-valve is connected on bypass sedimentation flue, the outlet air end of described bypass blower fan is connected with bypass sedimentation flue, the air intake of described bypass blower fan is connected with cooling head discharge pipe by bypass blower fan air-valve, and described bypass sedimentation flue is connected with steam boiler, and described steam boiler is connected with steam turbine, described steam turbine is connected with generator, described for processing water device and steam turbine, steam boiler is connected.
Further, described bypass sedimentation flue is made up of flue and expansion storehouse or cyclone dust collection structure.
Electrification technique as well as: the preheating and drying device using the C5 tremie pipe in the undermost C5 cyclone preheater of dry-process rotary kiln pre-heating system tapering as rubbish, contain CaO as main high temperature strong basicity powder is as preheating and drying medium using what flow in C5 tremie pipe, by pretreated containing wet refuse in rubbish feeding airlock feeding C5 tremie pipe, utilize C5 tremie pipe to include CaO for the main rapid draing of high temperature powder the rubbish that alkalizes, 850～950 DEG C of high temperature powders that wrap rubbish make the moisture in rubbish be vaporizated into high-temperature steam; Dry inflammable rubbish enters kiln tail smoke-box with powder, Quick-gasifying burning in 1000～1200 DEG C of backing high-temperature field atmosphere, wholesale increment high-temperature steam and burnt gas suction bypass sedimentation flue that burning produces, sneak into after cooling head waste air waste heat adjustment air quantity, wind-warm syndrome through the processing of bypass sedimentation flue and bypass blower fan, produce steam power driving steam turbine for steam boiler, steam turbine drives generator generating; The rubbish of after-flame and the lime-ash of after-flame do not enter the thorough after-flame of rotary kiln with raw material powder in time, and the garbage ash and city calcining being blended in raw meal powder is grog; A small amount of not hydrocarbon of timely after-flame rises to continuation after-flame in dore furnace, HF, HCl, SO that garbage decomposition produces
2in kiln tail smoke-box and dore furnace, absorbed curing by excess high activity CaO etc. toxic composition; The high temperature flying dust that steam boiler is collected is directly as cement fusion powder, and the leaching pressing filtering liquid producing in rubbish pretreatment is dissolved with coal mill or Vertical Mill in manufacture of cement, or as denitration alternative materials.
In technique scheme, rapidly and efficiently drier using C5 tremie pipe as rubbish, contain CaO as main high temperature strong basicity powder is as preheating and drying medium using what flow in C5 tremie pipe, containing wet refuse through rubbish feeding airlock feeding C5 tremie pipe, in C5 tremie pipe by quantity much larger than quantity of refuse and be that main, temperature reaches that the high temperature strong basicity powder of 850～950 DEG C wraps preheating, moisture flash of steam is dried containing CaO; C5 tremie pipe is connected with kiln tail smoke-box, is preheated dry rubbish with being advanced into kiln tail smoke-box under powder, in 1000～1200 DEG C of backing high-temperature field atmosphere of kiln tail smoke-box, burns; Kiln tail smoke-box is connected with rotary kiln, and the rubbish of after-flame and the lime-ash of rubbish after-flame do not enter thorough after-flame in rotary kiln with raw material in time, and the garbage ash and city being blended in raw meal powder is finally converted into grog composition through 1450～1700 DEG C of high-temperature calcinations; Kiln tail smoke-box top is connected with dore furnace through reducing, and in rubbish, in time a small amount of hydrocarbon of after-flame does not rise in the high temperature of 900～1200 DEG C, dore furnace Lu Nei center through 7s thorough after-flame of the above time of staying, decomposes HF, HCl, the SO of generation in rubbish
2deng all being absorbed and be cured as CaCl by excess high activity CaO
2, CaF
2, CaSO
4deng mineral; Kiln tail smoke-box is connected with bypass sedimentation flue, bypass sedimentation flue is arranged on the position that C5 tremie pipe opposite dust concentration is lower, water vapor concentration is higher, extract out through bypass sedimentation flue containing steam high-temperature flue gas, in flue gas, under Action of Gravity Field, pass back in kiln tail smoke-box through the processing of bypass sedimentation flue compared with coarse granule dust for a large amount of 1000～1200 DEG C that incineration firing produces; Bypass air-valve is connected on bypass sedimentation flue, for cut-off and control bypass air quantity, can be arranged on high temperature section or the low-temperature zone of bypass flue depending on feelings; The outlet air end of bypass blower fan is connected with bypass flue, produces the main steam pressure of supply steam turbine in order to adjust steam boiler; The air intake of bypass blower fan is connected with cooling head waste air pipeline, utilizes a waste air waste heat backing; Bypass sedimentation flue is connected with steam boiler, and boiler low-temperature waste gas enters line production system dust arrester or cloth bag or electric sack cleaner, and boiler fly ash is collected and be can be used as cement fusion powder through flue-dust retainer; Steam boiler is connected with steam turbine, the steam drive steam turbine that boiler produces; Steam turbine is connected with generator, and steam turbine power is for generator generating.Technique scheme is containing dry, calcine, the generate electricity a set of relatively independent technique of formation and the system of wet refuse, and system generated energy is via rubbish feeding capacity, bypass air-valve, bypass blower fan adjustment control, noiseless without conflicting with former afterheat generating system.
Know-why of the present utility model:
(1) utilize in restricted space several times to tens times to wrap combination drying containing wet refuse taking CaO as 850～950 DEG C of main high temperature strong basicity mobility powders, make moisture in rubbish be puffed to high-temperature steam, and the rubbish that alkalizes;
(2) utilize 1000～1200 DEG C, local space backing temperature field atmosphere to calcine dry incendive garbage, utilize in dore furnace 900～1200 DEG C of thorough after-flames of high temperature by after-flame and a small amount of hydrocarbon of rising utilizes the highly active CaO of excess in dore furnace and smoke-box thoroughly to absorb HF, HCl, SO in time of local space below
2deng venomous injurant, eliminate the condition of generation of dioxin, utilize high temperature in rotary kiln that the limited inorganic matter in the rubbish being blended in raw meal powder is converted into grog composition, and curing heavy metal element;
(3) utilize dust and water vapor concentration in kiln tail smoke-box space, chlor-alkali CONCENTRATION DISTRIBUTION difference is large and can aspirate feature, use the principle of leaking informaton of traditional reply chlor-alkali sulphur harm, extract the wholesale increment high temperature (1000～1200 DEG C) steam and the burnt gas that produce containing wet refuse out in suitable location (different smoke-box structures is variant), solve the adverse effect to coal dust firing in revolution kiln ventilation and kiln that causes because of rubbish contained humidity and organic compound combustion waste gas and possible chlor-alkali composition and to decomposing the adverse effect of coal dust firing in kiln, being beneficial to kiln system carries product and economizes on coal,
(4) by being set, bypass sedimentation flue, bypass air-valve, bypass blower fan enter the impact of kiln on kiln system operating mode and production capacity to eliminate rubbish, and electric weight is readjusted the distribution in control, and utilize the discarded waste heat of an exhaust blower (existing cement kiln waste-heat power generation system can not utilize), to stablize kiln condition and to produce maximized bypass power benefit;
(5) through suitably one of strengthening kiln hood is fiery to guarantee stablizing kiln tail and smoke-box temperature field, to reach to put forward the effect of product, upgrading and strengthening bypass generating;
(6) utilize still unavailable cooling head waste air waste heat backing of cement kiln waste-heat power generation system, increase the bypass generating capacity of associated treatment rubbish.
The utility model utilizes the powder rapid draing of strong basicity high temperature the rubbish that alkalizes, backing high-temperature field calcining rubbish, controlled bypass electricity generation system to have significant advantage, and its beneficial effect is as follows:
(1) simple and reliable process, the processing of personalizable scheme, adapt to China's zones of different application of city life garbage composition, calorific value and the large feature of moisture content fluctuation, can be because ground be because of feelings suiting measures to different conditions, the rubbish of project is stored up with pretreatment and is allowed to arrange outside factory, can process variety classes rubbish and various trait rubbish, as wet feed, bulk cargo, the granular rubbish of piece, different garbage entries can Bian for personalized associated treatment generating design;
(2) technique is flexible, invest little, because processing the different types of rubbish of various trait, can greatly simplify pretreating process and the equipment of rubbish, and without special garbage drying equipment, without special waste incineration furnace apparatus, without complicated lime-ash, flying dust, toxic harmful exhaust gas treatment system, even without supporting waste gas dedusting system separately, and visual feelings consider to utilize production line blower fan to solve bypass exhausting, thereby invest little; Wall scroll dry-process rotary kiln line associated treatment quantity of refuse, all has good investment economy from processing 50 tons～2000 tons different scales quantity of refuses day;
(3) thermal efficiency is high, generated energy is many, good economy performance, according to dry-process rotary kiln system process and equipment locality regional field feature, with the C5 tremie pipe high temperature powder rubbish that is dried and alkalizes, calcine dry rubbish with backing high-temperature field, can make full use of application of city life garbage calorific value, and can produce 1000～1200 DEG C of stable high wind-warm syndrome, can ensure that independently waste incineration Turbo-generator Set has stable high main vapour pressure and high heat energy conversion ratio, the more special incinerator generating of 1000～1200 DEG C of high-temperature fields that this backing is stable and high wind-warm syndrome can produce the electric energy of multiplication, the economy having had,
(4) little from power consumption, noiseless to former cogeneration, because the rubbish without professional is dried and incinerator system, also can utilize the existing Environmental-protecting dust-removing system of dry-process rotary kiln line, and without special lime-ash and sewage disposal system, garbage disposal electricity generation system is little from power consumption, and the grate-cooler that former cement kiln waste-heat power generation system is gathered and preheater waste gas residual heat are noiseless without conflict;
(5) do not increase grog coal consumption, and be expected to realize grog and produce zero power consumption; Discharged in time rubbish and enter most moisture, chlor-alkali sulphur and the increment waste gas of kiln because of bypath system, two fire of kiln system and kiln operating mode are had no adverse effect, grog is produced does not increase extra power consumption and coal consumption, and is conducive to carry product; Former cement kiln residual heat generating ton grog generating 30～45 degree add that rubbish bypass generated energy 20～40 degree (changing depending on quantity of refuse) are expected to meet grog and produce power consumption, realize grog and produce electric energy zero consumption to external world;
(6) garbage disposal realizes " three wastes " zero-emission, organic matter in rubbish is 1000～1700 DEG C of decomposition after-flames in kiln system, the chlorine, fluorine, sulphur that pyrolytic produces etc. is directly absorbed by alkaline calcium oxide, produces condition Wu toxic and harmfuls such as bioxin; Inorganic matter in rubbish is converted into grog composition, and heavy metal is also solidificated in grog; The leaching pressing filtering liquid of rubbish can be used for coal mill or Vertical Mill is dissolved, or is used as the alternative materials of denitration;
(7) can effectively promote " 401 is negative " of Sustainable Development of Cement Industry strategy, be that cement production enterprise is realized zero pollution completely to ecological environment around it, grog is produced zero consumption of electric energy to external world, to the zero-emission of waste material, waste residue, waste water, to zero consumption of natural minerals fuel, to the negative growth of whole society's discarded object.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment dry-process rotary kiln associated treatment containing wet refuse bypass electricity generation system;
In figure: 1-rubbish feeding airlock; 2-C5 tremie pipe; 3-kiln tail smoke-box; 4-rotary kiln; 5-dore furnace; 6-bypass sedimentation flue; 7-bypass air-valve; 8-bypass blower fan; 9-steam boiler; 10-steam turbine; 11-generator; 12-is for processing water device; 13-C5 cyclone preheater; 14-tilting plate lock air-valve; 15-reducing; 16-exhaust blower; 17-bypass blower fan air-valve; The former afterheat generating system of 18-; 19-grate-cooler.
Detailed description of the invention
For understanding better the utility model, below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to accompanying drawing, the present embodiment comprises rubbish feeding airlock 1, C5 tremie pipe 2, kiln tail smoke-box 3, rotary kiln 4, dore furnace 5, bypass sedimentation flue 6, bypass air-valve 7, bypass blower fan 8, steam boiler 9, steam turbine 10, generator 11, for processing water device 12, C5 cyclone preheater 13, grate-cooler 19 and an exhaust blower 16, described rubbish feeding airlock 1 is connected with C5 tremie pipe 2, be positioned at below the tilting plate lock air-valve 14 of C5 tremie pipe 2, described C5 tremie pipe 2 is connected with kiln tail smoke-box 3, described kiln tail smoke-box 3 is connected with rotary kiln 4, described kiln tail smoke-box 3 tops are connected with dore furnace 5 through reducing 15, and described bypass sedimentation flue 6 is positioned at C5 tremie pipe 2 opposites, and (this position dust concentration is lower, water vapor concentration is higher) (wherein, different smoke-box locations of structures is variant), and be connected with kiln tail smoke-box, described bypass air-valve 7 is connected on bypass sedimentation flue 6, the outlet air end of described bypass blower fan 8 is connected with bypass sedimentation flue 6, the air intake of described bypass blower fan 8 is connected with cooling head 19 discharge pipes by bypass blower fan air-valve 17, described bypass sedimentation flue 6 is connected with steam boiler 9, described steam boiler 9 is connected with steam turbine 10, described steam turbine 10 is connected with generator 11, described for processing water device 12 and steam turbine 10, steam boiler 9 is connected.
Described bypass sedimentation flue 6 is made up of flue and expansion storehouse.Described expansion storehouse also can substitute by cyclone dust collection structure etc.
Electrification technique as well as: the preheating and drying device using the C5 tremie pipe in the undermost C5 cyclone preheater of dry-process rotary kiln pre-heating system tapering as rubbish, contain CaO as main high temperature strong basicity powder is as preheating and drying medium using what flow in C5 tremie pipe, by pretreated containing wet refuse in rubbish feeding airlock feeding C5 tremie pipe, utilize C5 tremie pipe to include CaO for the main rapid draing of high temperature powder the rubbish that alkalizes, 850～950 DEG C of high temperature powders that wrap rubbish make the moisture in rubbish be vaporizated into high-temperature steam; Dry inflammable rubbish enters kiln tail smoke-box with powder, Quick-gasifying burning in 1000～1200 DEG C of backing high-temperature field atmosphere, wholesale increment high-temperature steam and burnt gas suction bypass sedimentation flue that burning produces, sneak into after cooling head waste air waste heat adjustment air quantity, wind-warm syndrome through the processing of bypass sedimentation flue and bypass blower fan, produce steam power driving steam turbine for steam boiler, steam turbine drives generator generating; The rubbish of after-flame and the lime-ash of after-flame do not enter the thorough after-flame of rotary kiln with raw material powder in time, and the garbage ash and city calcining being blended in raw meal powder is grog; A small amount of not hydrocarbon of timely after-flame rises to continuation after-flame in dore furnace, HF, HCl, SO that garbage decomposition produces
2in kiln tail smoke-box and dore furnace, absorbed curing by excess high activity CaO etc. toxic composition; The high temperature flying dust that steam boiler is collected is directly as cement fusion powder, and the leaching pressing filtering liquid producing in rubbish pretreatment is dissolved with coal mill or Vertical Mill in manufacture of cement, or as denitration alternative materials.
In technique scheme, rubbish feeding airlock 1 is connected with C5 tremie pipe 2, be arranged at below the tilting plate lock air-valve 14 of C5 tremie pipe 2, rapidly and efficiently drier using C5 tremie pipe 2 as rubbish, using the drying medium as main high temperature strong basicity powder as rubbish containing CaO flowing in C5 tremie pipe 2, feed in C5 tremie pipe 2 through rubbish feeding airlock 1 containing wet refuse, C5 tremie pipe 2 interior by quantity much larger than quantity of refuse and reach the high temperature strong basicity powder of 850～950 DEG C containing excess CaO, temperature and wrap preheating, moisture flash of steam and be dried and alkalize; C5 tremie pipe 2 is connected with kiln tail smoke-box 3, is preheated dry rubbish with being advanced into kiln tail smoke-box 3 under powder, in kiln tail smoke-box 3, in 1000～1200 DEG C of backing high-temperature field atmosphere, burns; Kiln tail smoke-box 3 is connected with rotary kiln 4, and the lime-ash in rubbish afterburnt and the not rubbish of timely after-flame enter the thorough after-flame of rotary kiln 4 with powder, and the garbage ash and city being blended in raw meal powder is finally grog composition through 1450 DEG C of pyrolytic conversions; Kiln tail smoke-box 3 tops are connected with dore furnace 5 through reducing 15, in rubbish, a small amount of hydrocarbon of after-flame does not rise to dore furnace 5 in time, in the high temperature of 900～1200 DEG C, interior center of dore furnace 5, through 7s thorough after-flame of the above time of staying, in rubbish, decompose HF, the HCl, the SO that produce
2deng all being absorbed and be cured as CaCl by excess high activity CaO
2, CaF
2, CaSO
4deng mineral; Kiln tail smoke-box 3 is connected with bypass sedimentation flue 6, bypass sedimentation flue 6 is arranged on C5 tremie pipe 2 position that opposite dust concentration is lower, water vapor concentration is higher, extract out through bypass sedimentation flue 6 containing steam high-temperature flue gas, in flue gas, under Action of Gravity Field, pass back in kiln tail smoke-box 3 through the processing of bypass sedimentation flue 6 compared with coarse granule dust for a large amount of 1000～1200 DEG C that incineration firing produces; Bypass air-valve 7 is connected on bypass sedimentation flue 6, can be arranged in the temperature end or low-temperature end pipeline of bypass flue, for cut-off and control bypass air quantity; The outlet air end of bypass blower fan 8 is connected with bypass sedimentation flue 6, produces the main steam pressure of supply steam turbine 10 in order to adjust steam boiler 9; The air intake of bypass blower fan 8 is connected with the exhaust piping of an exhaust blower 16 of grate-cooler 19, utilizes a waste air waste heat backing; The intake stack of bypass blower fan 8 is provided with bypass blower fan air-valve 17; Bypass sedimentation flue 6 is connected with steam boiler 9, and the low temperature waste gas of steam boiler 9 enters production line dust arrester or electric sack cleaner, and the flying dust that steam boiler 9 is collected is collected and be can be used as cement fusion powder through flue-dust retainer; Steam boiler 9 is connected with steam turbine 10, the steam drive steam turbine 10 of steam boiler 9; Steam turbine 10 is connected with generator 11, and steam turbine 10 power generate electricity for generator 11; Be connected with steam turbine 10, steam boiler 9 for processing water device 12.
Press dry, calcine, generate electricity formation a set of relatively independent technique and the system of technique scheme containing wet refuse, the generated energy of generator 11 is adjusted and is controlled via rubbish feeding capacity, bypass air-valve 7, bypass blower fan 8, conflicts with former afterheat generating system 18 nothings.
Disclosed above is only preferred embodiment of the present utility model, and the equivalence of doing according to the utility model changes, and still belongs to protection domain of the present utility model.
Claims (2)
1. dry-process rotary kiln associated treatment, containing a wet refuse bypass electricity generation system, comprises C5 tremie pipe, kiln tail smoke-box, rotary kiln, dore furnace, C5 cyclone preheater, grate-cooler and an exhaust blower, described C5 tremie pipe is connected with kiln tail smoke-box, and described kiln tail smoke-box is connected with rotary kiln, and described kiln tail smoke-box top is connected with dore furnace through reducing, it is characterized in that: be also provided with rubbish feeding airlock, bypass sedimentation flue, bypass air-valve, bypass blower fan, steam boiler, steam turbine, water device is processed in generator and confession, described rubbish feeding airlock is connected with C5 tremie pipe, be positioned at below the tilting plate lock air-valve of C5 tremie pipe, described bypass sedimentation flue is positioned at C5 tremie pipe opposite, and be connected with kiln tail smoke-box, described bypass air-valve is connected on bypass sedimentation flue, the outlet air end of described bypass blower fan is connected with bypass sedimentation flue, the air intake of described bypass blower fan is connected with cooling head discharge pipe by bypass blower fan air-valve, described bypass sedimentation flue is connected with steam boiler, described steam boiler is connected with steam turbine, and described steam turbine is connected with generator, described for processing water device and steam turbine, steam boiler is connected.
2. dry-process rotary kiln associated treatment according to claim 1 containing wet refuse bypass electricity generation system, is characterized in that: described bypass sedimentation flue is made up of flue and expansion storehouse or cyclone dust collection structure.
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| CN201420203275.0U CN203771420U (en) | 2014-04-24 | 2014-04-24 | Bypass generating system for co-processing wet garbage by dry method rotary kiln |
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| CN201420203275.0U CN203771420U (en) | 2014-04-24 | 2014-04-24 | Bypass generating system for co-processing wet garbage by dry method rotary kiln |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939912A (en) * | 2014-04-24 | 2014-07-23 | 尹小林 | Bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage |
| WO2015161560A1 (en) * | 2014-04-24 | 2015-10-29 | 尹小林 | Refuse incineration treatment device and power generation method using refuse incineration |
| CN106396441A (en) * | 2016-08-30 | 2017-02-15 | 中国葛洲坝集团水泥有限公司 | Device and method for processing kiln ash generated in cement kiln household garbage co-processing |
| CN107062921A (en) * | 2017-04-18 | 2017-08-18 | 长沙紫宸科技开发有限公司 | A kind of carbon dioxide energy storage equipment of accumulation kiln tail preheater expects pipe high temperature heat |
-
2014
- 2014-04-24 CN CN201420203275.0U patent/CN203771420U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939912A (en) * | 2014-04-24 | 2014-07-23 | 尹小林 | Bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage |
| WO2015161560A1 (en) * | 2014-04-24 | 2015-10-29 | 尹小林 | Refuse incineration treatment device and power generation method using refuse incineration |
| CN103939912B (en) * | 2014-04-24 | 2016-01-13 | 尹小林 | Dry-process rotary kiln associated treatment is containing wet refuse bypass electrification technique as well as and system |
| CN106396441A (en) * | 2016-08-30 | 2017-02-15 | 中国葛洲坝集团水泥有限公司 | Device and method for processing kiln ash generated in cement kiln household garbage co-processing |
| CN106396441B (en) * | 2016-08-30 | 2018-09-28 | 中国葛洲坝集团水泥有限公司 | A kind of cement kiln synergic processing house refuse generates the processing unit and method of kiln ash |
| CN107062921A (en) * | 2017-04-18 | 2017-08-18 | 长沙紫宸科技开发有限公司 | A kind of carbon dioxide energy storage equipment of accumulation kiln tail preheater expects pipe high temperature heat |
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Effective date of registration: 20161116 Address after: 410205 Hunan province Changsha Wenxuan High-tech Development Zone, Road No. 27 Lu Valley Yuyuan D3-101 building two floor Patentee after: CHANGSHA ZICHEN TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 410013 Hunan province high tech Development Zone C2 group Binjiang fortune Silicon Valley building, room 5, building 510, room Patentee before: Yin Xiaolin |
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Granted publication date: 20140813 |