CN2760405Y - Medical refuse burning system with combined use of rotary kiln and circulating fluid bed - Google Patents
Medical refuse burning system with combined use of rotary kiln and circulating fluid bed Download PDFInfo
- Publication number
- CN2760405Y CN2760405Y CN 200420086597 CN200420086597U CN2760405Y CN 2760405 Y CN2760405 Y CN 2760405Y CN 200420086597 CN200420086597 CN 200420086597 CN 200420086597 U CN200420086597 U CN 200420086597U CN 2760405 Y CN2760405 Y CN 2760405Y
- Authority
- CN
- China
- Prior art keywords
- fluidized bed
- recirculating fluidized
- rotary kiln
- wind
- pyrolysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title abstract 6
- 238000000197 pyrolysis Methods 0.000 claims abstract description 38
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000003517 fume Substances 0.000 claims abstract description 11
- 230000003134 recirculating effect Effects 0.000 claims description 114
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 25
- 239000003546 flue gas Substances 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 10
- 230000000171 quenching effect Effects 0.000 claims description 10
- 238000005243 fluidization Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 8
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 7
- 235000019738 Limestone Nutrition 0.000 abstract description 6
- 239000006028 limestone Substances 0.000 abstract description 5
- 238000002309 gasification Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 239000002906 medical waste Substances 0.000 description 16
- 238000007599 discharging Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 6
- 238000010304 firing Methods 0.000 description 6
- 239000011343 solid material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 206010058490 Hyperoxia Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000000222 hyperoxic effect Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a medical refuse burning system with combined use of a rotary kiln and a circulating fluid bed. The rotary kiln has pyrolysis and gasification functions and the circulating fluidized bed has a complete-combustion function in a burning chamber which is formed by combining the rotary kiln and the circulating fluid bed; the residence time of the pyrolysis fume of the rotary kiln is from 3 seconds to 4 seconds in the circulating fluid bed, the residence time of the solid combustible matter is from 40 minutes to 60 minutes in the circulating fluid bed, and the burning efficiency is high so as to ensure the high-efficiently complete combustion of the medical refuse; the limestone is added on the circulating fluid bed to inhibit the emission of the acid air of the hydrogen chloride, etc., prevent the corrosion problem of an incinerator and a tail fume channel, and prolong service life of the burning system. A high temperature air preheater is used for heating the combustion-supporting air to more than 500 DEG C, and the utility model does not need oil to support combustion in a normal operation and reduces operating cost; a fume rapid cooling device can decrease a fume temperature from 550 DEG C to 170 DEG C in 0.5 second without contacting fume and water so as to reduce regeneration of the dioxin under the condition of a lower temperature and prevent secondary pollution.
Description
Technical field
The utility model relates to the medical refuse burning system of a kind of rotary kiln and recirculating fluidized bed coupling.
Background technology
Medical waste is meant the refuse with direct or indirect infection, toxicity and other harmfulness that medical and health organization produces in medical treatment, disease-prevention or healthcare and other correlated activations.The clinical waste contaminated environment, spreading disease, pose a health risk, endanger very greatly, is the primary refuse in " national hazardous waste register " 47 class hazardous wastes.The whole nation produced about 650,000 tons of clinical waste in 2002, and an average day generation is 1780 tons; Expect 2010, national clinical waste generation will reach more than 680,000 ton, and an average day generation reaches 1870 tons.For preventing that clinical waste from causing social danger, transmission; protection environment and guarantee health; the construction clinical waste centrally disposes engineering and carries out Whole Course Management; be safe storage and the disposal that realizes clinical waste; ensure the effective way of people ' s health and Environmental security; and in the construction that centrally disposes facility; the CIU of clean combustion, environment protection emission is particularly important, and exploitation efficiency of combustion height, pollutant can strictness reach " dangerous waste incineration pollution control criterion " (GB18484) CIU of emission request is extremely urgent.
Rotary kiln is present common a kind of medical refuse burning device, is derived from the rotary calciner of cement industry.Rotary kiln be one columniform simplified, inner lining refractory, slightly tilt to install, feed end is higher than discharging section, and motor drives cylindrical shell around the axle center unitary rotation by transmission mechanism, make medical waste mixing, pyrolytic gasification, catch fire, rubbish decomposes, is gasificated into fuel gas, therefore in slow rotation process, often as a combustion chamber of medical waste, a supporting dual firing chamber carries out after-flame simultaneously.But expose outlet end at present in the actual motion at rotary kiln, a large amount of using pyrolysis products are without burning discharge, and the effect of set traditional dual firing chamber all is used for the after-flame of gas, does not have further after-flame function for residual Jiao behind the rotary kiln pyrogenation or solid residue.Be difficult on the one hand to reach pyrolysis after heat burn decrement rate less than 5% target, cause secondary pollution on the other hand easily.
In addition, in the medical refuse burning system of rotary kiln and traditional dual firing chamber formation, because a large amount of chlorine-containing disinfectants and the plastic packaging bag that contain in the medical waste, make HCl content in the flue gas that medical refuse burning produces up to 1000ppm, caused the particularly etching problem of bootstrap system of back-end ductwork, under the serious situation, corrosion failure just appearred in back-end ductwork after two～three months, influenced the normal operation of system.
Recirculating fluidized bed is a kind of low pollution that is accepted with unanimity at electric power, environmental protection industry (epi) in recent years, efficient incineration technology, its ignition temperature is 850～950 ℃, the time of staying of solid particle in recirculating fluidized bed is long, efficiency of combustion is suitable for the high-efficient low polluting combustion of multiple different fuels such as coal, domestic waste, mud greater than 99%.Therefore, circulating fluidized bed technique is introduced medical refuse burning handle, the advantage of rotary kiln and recirculating fluidized bed is organically combined, form the medical waste treatment system that a kind of high-efficiency cleaning burns, have broad application prospects.
Summary of the invention
The purpose of this utility model is to provide the medical refuse burning system of a kind of rotary kiln and recirculating fluidized bed coupling.
Rotary kiln and recirculating fluidized bed are united the medical refuse burning system of formation, in CIU, elevating hopper is connected with batcher in turn, rotary kiln, rotary kiln and recirculating fluidized bed pyrolysis gas interface, the recirculating fluidized bed body, recirculating fluidized bed whirlwind separator, recirculating fluidized bed fluidized wind preheater, the flue gas quenching apparatus, semi-dry fume purifier, sack cleaner, air-introduced machine, chimney, the recirculating fluidized bed body is provided with the recirculating fluidized bed dilute-phase zone, the recirculating fluidized bed emulsion zone, slag-drip opening, pyrolysis wind and burnt wind air preheater and recirculating fluidized bed fluidized wind preheater also connect, the rotary kiln pyrogenation airduct of rotary kiln front end and pyrolysis wind and burnt wind air preheater upper end join, the rotary kiln rear end joins through rotary kiln and recirculating fluidized bed solid interface and recirculating fluidized bed body recirculating fluidized bed emulsion zone, recirculating fluidized bed whirlwind separator lower end is joined through recirculating fluidized bed loop back device and recirculating fluidized bed body recirculating fluidized bed emulsion zone, and recirculating fluidized bed body lower end joins through recirculating fluidized bed fluidisation airduct and recirculating fluidized bed fluidized wind preheater upper end.Recirculating fluidized bed fluidized wind preheater lower end and fluidisation blower fan join, and pyrolysis wind and burnt wind air preheater join with pyrolysis wind and burnt wind blower fan.
In service need not throw oil combustion-supporting normal for the utility model, reduces operating cost; Add the bed material of lime stone, can effectively suppress the discharging of the sour gas such as hydrogen chloride in the waste incineration, long service life as recirculating fluidized bed; The dual firing chamber that recirculating fluidized bed constitutes burns under 850～950 ℃ medium temperature condition, and the gentle time of staying of body heat hydrolysis products in recirculating fluidized bed of solid material is long, and the efficiency of combustion height has guaranteed the efficient after-flame of medical waste to prevent to cause secondary pollution.
Description of drawings
Accompanying drawing is the medical refuse burning system architecture schematic diagram of rotary kiln and recirculating fluidized bed coupling, among the figure: 1 elevating hopper, 2 batchers, 3 rotary kiln pyrogenation airducts, 4 rotary kilns, 5 rotary kilns and recirculating fluidized bed pyrolysis gas interface, 6 rotary kilns and recirculating fluidized bed solid interface, 7 recirculating fluidized beds burn airduct, 8 recirculating fluidized bed bodies, 9 recirculating fluidized bed whirlwind separators, 10 lime stones feed device, 11 recirculating fluidized bed fluidized wind preheaters, 12 recirculating fluidized bed fluidisation airducts, 13 pyrolysis wind and burnt wind air preheater, 14 recirculating fluidized bed loop back devices, 15 pyrolysis wind and burnt wind blower fan, 16 fluidized wind blower fans, 17 cooling water pumps, 18 flue gas quenching apparatus, 19 cooling towers, 20 semi-dry fume purifiers, 21 sack cleaners, 22 air-introduced machines, 23 chimneys, 24 recirculating fluidized bed dilute-phase zones, 25 recirculating fluidized bed emulsion zones, 26 slag-drip openings.
The specific embodiment
The utility model rotary kiln and recirculating fluidized bed are united the medical refuse burning chamber of formation, rotary kiln plays the refuse pyrolysis gasification, after rubbish feeds rotary kiln, in rotary kiln, rotatablely move slow forward, refuse pyrolysis under 500～600 ℃ hot blast effect, the combustible gas that produces after the pyrolysis is sent into the dilute-phase zone burning of recirculating fluidized bed top, and remaining solid matter is sent into the emulsion zone burning of recirculating fluidized bed bottom.Medical waste is tumbling motion in rotary kiln, material alternately is exposed in the hot flue gas, and the temperature of rotary kiln is relatively low, material is subjected to evenly heating slowly, moisture and volatile matter are separated out more even, have prevented the problem of combustible material detonations such as plastics when independent employing recirculating fluidized bed burns medical waste.
Recirculating fluidized bed plays the after-flame effect of gas phase and solid product after the pyrolysis in CIU, the bulk temperature of recirculating fluidized bed is between 850～1050 ℃, by classification air feed, oxygen-enriched combusting, strong reaction.After solid material enters recirculating fluidized bed, be the operation of fluidisation shape, its time of staying surpasses 40～60 minutes, has guaranteed burning of solid material, and the hot burn decrement rate of the lime-ash of discharge is less than 2%, far below the burning standard.
The fuel gas that rotary kiln pyrogenation comes out is after entering recirculating fluidized bed, gas contacts with 850～1050 ℃ of high concentration high temperature circulation solid particles of recirculating fluidized bed, the gas-solid two-phase is carried out strong heat exchange, the temperature of hot flue gas is elevated to rapidly more than 800 ℃, burning rapidly under the hyperoxia amount condition that the classification air feed feeds simultaneously, flue gas time of staying in recirculating fluidized bed surpasses 3～4 seconds, can make the abundant after-flame of fuel gas, effectively suppresses the generation of harmful substances such as dioxin.
Adding lime stone in recirculating fluidized bed expects as bed, the calcium oxide that lime stone pyrolysis under hot conditions produces can with the sour gas neutralization reactions such as hydrogen chloride that produce in the medical refuse burning, reduce the hydrogen chloride concentration of emission, avoided the etching problem of afterbody equipment.
The high-temperature flue gas that comes out from recirculating fluidized bed cools to 500 ℃ through air preheater earlier, and burning needed pyrolysis wind, fluidized wind and a burnt wind etc. are heated to more than 500 ℃, the high temperature combustion air has improved the ignition temperature level in the Burning Room, makes medical waste not need auxiliary fuel can keep burning.
The flue gas that comes out from the high temperature air preheater is cooled to 170 ℃ through the flue gas quenching apparatus, the flue gas chilling adopts the water pipe heat exchange type of cooling, flue gas flows outside pipe, water flows in pipe, not directly contact, avoided the generation and the after-treatment problem of sewage, the time of staying of flue gas in quenching apparatus reduced the low-temp recovery of dioxin in the flue gas less than 0.5 second.
As shown in drawings, rotary kiln and recirculating fluidized bed are united the Burning Room of formation, elevating hopper 1 is connected with batcher 2 in turn, rotary kiln 4, rotary kiln and recirculating fluidized bed pyrolysis gas interface 5, recirculating fluidized bed body 8, recirculating fluidized bed whirlwind separator 9, recirculating fluidized bed fluidized wind preheater 11, flue gas quenching apparatus 18, semi-dry fume purifier 20, sack cleaner 21, air-introduced machine 22, chimney 23, recirculating fluidized bed body 8 is provided with recirculating fluidized bed dilute-phase zone 24, recirculating fluidized bed emulsion zone 25, slag-drip opening 26, pyrolysis wind and burnt wind air preheater 13 and recirculating fluidized bed fluidized wind preheater 11 also connect, rotary kiln pyrogenation airduct 3 and the pyrolysis wind and burnt wind air preheater 13 upper ends of rotary kiln front end join, the rotary kiln rear end joins with recirculating fluidized bed body 8 recirculating fluidized bed emulsion zones through rotary kiln and recirculating fluidized bed solid interface 6, recirculating fluidized bed whirlwind separator 9 lower ends join through recirculating fluidized bed loop back device 14 and recirculating fluidized bed body 8 recirculating fluidized bed emulsion zones, and recirculating fluidized bed body 8 lower ends join through recirculating fluidized bed fluidisation airduct 12 and recirculating fluidized bed fluidized wind preheater 11 upper ends.Recirculating fluidized bed fluidized wind preheater 11 lower ends and fluidisation blower fan 16 join, and pyrolysis wind and burnt wind air preheater 13 join with pyrolysis wind and burnt wind blower fan 15.
Described rotary kiln and recirculating fluidized bed are united in the Burning Room of formation, rotary kiln plays the refuse pyrolysis gasification, recirculating fluidized bed works the effect of burning, the temperature of rotary kiln is 400～600 ℃, and the temperature of recirculating fluidized bed is 850～1050 ℃, the time of staying of flue gas behind the rotary kiln pyrogenation in recirculating fluidized bed is 3-4 second, and the time of staying of solid combustible is 40～60 minutes.In the flue gas quenching apparatus 18, flue gas is outside pipe, and cooling water flows in pipe.
Rubbish is connected to rotary kiln 4 by garbage feeding machine 2, pyrolysis under the hot blast effect of pyrolysis airduct 3, burning above 500 ℃, the combustible gas that burning discharges is sent into recirculating fluidized bed 8 bodies by rotary kiln and recirculating fluidized bed pyrolysis gas interface 5, recirculating fluidized bed dilute-phase zone 24 and cyclone separator 9 have constituted the dual firing chamber or the burning chamber of pyrolysis gas, add the hot blast of after-flame airduct 7 to guarantee sufficient oxygen supply in dilute-phase zone 24; The remaining solid matter of rotary kiln 4 pyrolysis is sent into recirculating fluidized bed 8 bodies by rotary kiln and recirculating fluidized bed solid interface 6, these solid matters are under the fluidization of recirculating fluidized bed fluidized wind 12, recirculating fluidized bed emulsion zone 25, dilute-phase zone 24, the burning space circulating combustion that cyclone separator 9 and loop back device 14 constitute, solid material following time of staying of hot environment of 850～950 ℃ above 30 minutes, guaranteed the abundant after-flame of solid material, the hot burn decrement rate of lime-ash of discharging burner hearths by big cinder notch 26 is less than 2%, and the lime-ash of discharge can directly use as building materials after removing metal.
The temperature range of recirculating fluidized bed dilute-phase zone 24 maintains 850～1050 ℃, the pyrolysis gas that rotary kiln 4 comes out time of staying of dilute-phase zone 24 above 2 seconds, time of staying of cyclone separator 9 above 3 seconds, the burning that has guaranteed gaseous products is complete, the discharging of organic pollutions such as dioxin is well below environmental protection standard, and 850～1050 ℃ reaction condition makes the discharging of NOx be lower than 50ppm.
Gas fume after burning is cooled to 550 ℃ through recirculating fluidized bed fluidized wind preheater 11 and pyrolysis wind and burnt wind air preheater 13, and combustion-supportingly be heated to 500 ℃ accordingly with pyrolysis wind and fluidized wind, both reduced flue-gas temperature, improved ignition temperature again, under normal operation, it is combustion-supporting not throw oil, has reduced operating cost.
Flue gas was reduced to 170 ℃ from 550 ℃ by quenching apparatus 18 in 0.5 second, prevent the low-temp recovery of dioxin.Discharging chimney 23 by semi-dry fume purifier 20, sack cleaner 21, air-introduced machine 22 then.
The CIU that adds dual firing chamber with general rotary kiln is different, and the utility model has provided the Burning Room structure of rotary kiln and recirculating fluidized bed coupling, makes solid material and the pyrolysis gas can completing combustion under 850～1050 ℃ temperature conditions.Recirculating fluidized bed adds lime stone (CaCO
3) as the bed material, under hot conditions, CaCO
3Resolve into CaO, carry out neutralization reaction with the hypochlorous acid of sterilization usefulness in the medical waste and the hydrogen chloride that the medical refuse burning process produces, both prevented the etching problem of equipment, prolong the life-span of equipment, reduced the hydrogen cloride concentration in the flue gas again, guaranteed the hydrogen chloride emission compliance, simultaneously, the source that has suppressed the chlorine of dioxin generation has reduced the concentration that dioxin discharges, and prevents that medical refuse burning from causing secondary pollution.
Claims (3)
1, the medical refuse burning system of a kind of rotary kiln and recirculating fluidized bed coupling, it is characterized in that, rotary kiln and recirculating fluidized bed are united the Burning Room of formation, elevating hopper (1) is connected with batcher (2) in turn, rotary kiln (4), rotary kiln and recirculating fluidized bed pyrolysis gas interface (5), recirculating fluidized bed body (8), recirculating fluidized bed whirlwind separator (9), recirculating fluidized bed fluidized wind preheater (11), flue gas quenching apparatus (18), semi-dry fume purifier (20), sack cleaner (21), air-introduced machine (22), chimney (23), recirculating fluidized bed body (8) is provided with recirculating fluidized bed dilute-phase zone (24), recirculating fluidized bed emulsion zone (25), slag-drip opening (26), pyrolysis wind and burnt wind air preheater (13) and recirculating fluidized bed fluidized wind preheater (11) also connect, the rotary kiln pyrogenation airduct (3) of rotary kiln front end joins with pyrolysis wind and burnt wind air preheater (13) upper end, the rotary kiln rear end joins through the recirculating fluidized bed emulsion zone (25) of rotary kiln and recirculating fluidized bed solid interface (6) and recirculating fluidized bed body (8), recirculating fluidized bed whirlwind separator (9) lower end joins through the recirculating fluidized bed emulsion zone of recirculating fluidized bed loop back device (14) with recirculating fluidized bed body (8), and recirculating fluidized bed body (8) lower end joins through recirculating fluidized bed fluidisation airduct (12) and recirculating fluidized bed fluidized wind preheater (11) upper end.Recirculating fluidized bed fluidized wind preheater (11) lower end and fluidisation blower fan (16) join, and pyrolysis wind and burnt wind air preheater (13) join with pyrolysis wind and burnt wind blower fan (15).
2, the medical refuse burning system of a kind of rotary kiln according to claim 1 and recirculating fluidized bed coupling, it is characterized in that described rotary kiln and recirculating fluidized bed unite in the Burning Room of formation, the temperature of rotary kiln is 400～600 ℃, the temperature of recirculating fluidized bed is 850～1050 ℃, the time of staying of flue gas behind the rotary kiln pyrogenation in recirculating fluidized bed is 3-4 second, and solid combustible is 40～60 minutes in the time of staying of recirculating fluidized bed.
3, the medical refuse burning system of a kind of rotary kiln according to claim 1 and recirculating fluidized bed coupling, it is characterized in that in the described flue gas quenching apparatus (18), flue gas is outside pipe, and cooling water is in pipe, and the time of staying of flue gas in quenching apparatus was less than 0.5 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086597 CN2760405Y (en) | 2004-12-27 | 2004-12-27 | Medical refuse burning system with combined use of rotary kiln and circulating fluid bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086597 CN2760405Y (en) | 2004-12-27 | 2004-12-27 | Medical refuse burning system with combined use of rotary kiln and circulating fluid bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760405Y true CN2760405Y (en) | 2006-02-22 |
Family
ID=36082608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086597 Expired - Lifetime CN2760405Y (en) | 2004-12-27 | 2004-12-27 | Medical refuse burning system with combined use of rotary kiln and circulating fluid bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760405Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009015575A1 (en) * | 2007-07-27 | 2009-02-05 | Zefeng Chen | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN101968225A (en) * | 2010-10-28 | 2011-02-09 | 北京中科通用能源环保有限责任公司 | Method and device for harmlessly incinerating industrial solid wastes |
| CN106765154A (en) * | 2017-01-24 | 2017-05-31 | 山东大学 | It is a kind of that method of disposal is pyrolyzed based on the medical waste that microwave is quenched |
| CN109157920A (en) * | 2018-08-01 | 2019-01-08 | 黑龙江兰德超声科技股份有限公司 | Fume and dust removing device for use is used in rural garbage processing |
-
2004
- 2004-12-27 CN CN 200420086597 patent/CN2760405Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009015575A1 (en) * | 2007-07-27 | 2009-02-05 | Zefeng Chen | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN101968225A (en) * | 2010-10-28 | 2011-02-09 | 北京中科通用能源环保有限责任公司 | Method and device for harmlessly incinerating industrial solid wastes |
| CN106765154A (en) * | 2017-01-24 | 2017-05-31 | 山东大学 | It is a kind of that method of disposal is pyrolyzed based on the medical waste that microwave is quenched |
| CN109157920A (en) * | 2018-08-01 | 2019-01-08 | 黑龙江兰德超声科技股份有限公司 | Fume and dust removing device for use is used in rural garbage processing |
| CN109157920B (en) * | 2018-08-01 | 2020-10-16 | 黑龙江兰德超声科技股份有限公司 | Smoke and dust removing device for rural garbage treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1288385C (en) | Medical refuse burning system combining rotary furnace with circulating fluidized bed | |
| CN100337059C (en) | Multistage burning method and system for gasification of refuse and co-fusion of charcoal ash in rotary kiln | |
| CN102336507A (en) | Sludge treatment system and treatment method | |
| CN104197341A (en) | Reciprocating type exhaust gas pyrolyzing furnace | |
| WO2013166992A1 (en) | Solid waste incinerator without emission of flue gas and incinerator body | |
| RU2303746C2 (en) | Device for heat treatment of domestic waste | |
| CN102317687A (en) | Be used to handle the method and apparatus of solid waste | |
| CN2634307Y (en) | Multistage incineration equipment of rotary kiln garbage gasifying and carbon ash cosmelting | |
| JP4527243B2 (en) | How to use the lime kiln | |
| US4932335A (en) | Coal combustion with a fluidized incineration bed | |
| CN2760405Y (en) | Medical refuse burning system with combined use of rotary kiln and circulating fluid bed | |
| CN201078701Y (en) | Petroleum sludge grate firing helix grate incineration furnace | |
| CN202390300U (en) | Sludge treatment system | |
| CN1644989A (en) | Medical refuse circulating fluidized bed burning furnace and burning method thereof | |
| CN102759111A (en) | Garbage cracking furnace | |
| CN1259523C (en) | Double temperature double bed gasification, oxidization and fluidized bed incinerator for disposing high concentration organic effluent liquor | |
| CN2791491Y (en) | Medical refuse circulating fluidized bed incinerator | |
| CN2804646Y (en) | Medical garbage incinerator | |
| CN1782497A (en) | Incinerator for medical garbage | |
| CN2376579Y (en) | Two-stage circular bed refuse incineration boiler | |
| CN2606262Y (en) | Low-pollution refuse burning systems | |
| CN115854356A (en) | Sludge countercurrent incineration rotary kiln incinerator and sludge disposal system | |
| CN2588213Y (en) | Sectional fluidized-bed medical refuse burning furnace | |
| CN212108415U (en) | Household garbage pyrolysis gasification incineration grate furnace and treatment system thereof | |
| CN107023839A (en) | A kind of application method for handling absorption VOCs waste gas solid waste accumulation of heat fluidizing combustion furnaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20041227 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |