CN102716895A - Method and system for drying high-temperature waste gas aerobe in urban raw refuse - Google Patents

Method and system for drying high-temperature waste gas aerobe in urban raw refuse Download PDF

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Publication number
CN102716895A
CN102716895A CN2012101855898A CN201210185589A CN102716895A CN 102716895 A CN102716895 A CN 102716895A CN 2012101855898 A CN2012101855898 A CN 2012101855898A CN 201210185589 A CN201210185589 A CN 201210185589A CN 102716895 A CN102716895 A CN 102716895A
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China
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urban original
waste gas
biological dewatered
urban
aerobic
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CN2012101855898A
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Chinese (zh)
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陈�峰
陈丹
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泓天(大连)环境科技发展有限公司
陈丹
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Priority to CN2012101855898A priority Critical patent/CN102716895A/en
Publication of CN102716895A publication Critical patent/CN102716895A/en

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Abstract

The invention provides a method and a system for drying high-temperature waste gas aerobe in urban raw refuse. High-temperature biological modifiers are involved in modification for the aerobe in the urban raw refuse, oxygen provided by mixed outdoor fresh air and a high-temperature environment provided by high-temperature waste gas are used for decomposing organic matters in the urban raw refuse into water and other inorganic matters, heat is released, most of the water is heated and evaporated into water vapor by the aid of the high-temperature environment and the heat and then is discharged in the form of damp and hot waste gas, and accordingly, the aerobe in the urban raw refuse is dried. The system comprises an urban raw refuse aerobe drying bin, an air feeder and the like. Further optimization can be realized by methods and systems for automatic control, photocatalytic sterilization deodorization and the like. Owing to the high-temperature waste gas, the organic matters in the urban raw refuse are higher in decomposition degree, larger in water evaporation amount, shorter in drying process and more remarkable in drying effect, and the refuse can be reduced and harmlessly and stably disposed.

Description

A kind of urban original high temperature garbage waste gas aerobe drying method and system

Technical field

The present invention relates to the technical field of domestic rubbish disposal, relate in particular to the garbage drying process in garbage derivatived fuel (RDF) making, is exactly a kind of domestic waste aerobe drying method and system specifically.

Background technology

Not fully from original-source by classification, the rubbish from cooking ratio is big in the domestic waste as yet for China's rubbish, and moisture content and content of organics are high, is unfavorable for innoxious, minimizing, stabilisation, the recycling treatment of rubbish.

High-moisture percentage causes crude waste to be difficult for letter sorting, to be difficult for fragmentation, is unfavorable for the use of complete mechanical garbage sorting equipment especially, the suffering that causes garbage reclamation to utilize again.

The content of organics height causes the biochemical property of rubbish unstable, transport and processing procedure in produce a large amount of percolates and rancid gas etc., dealing with improperly can contaminated soil, water quality and surrounding environment etc.

Processing mode to garbage drying mainly contains at present: steam decomposes mummification, mechanical dehydration mummification and rubbish biological mummification etc.

Adopt technology such as steam decomposition, mechanical dehydration to carry out garbage drying, the one, need provide the disposable energy such as production that fuel carries out steam or electric energy to produce power, comparatively waste energy; The 2nd, some steam drying technique adopts and burns away the refuse, garbage derivatived product etc. produced steam; It is an important link that flue gas after the burning is handled; Treatment facility investment and operating cost are than higher, and frequent appearance is burned not exclusively or flue gas is handled the problems such as pollution once more that not exclusively cause.

Generally adopt the disposal of refuse of rubbish biological drying method both at home and abroad at present, remove the most of moisture in the rubbish through aerobic or anaerobic biological process; But there is long shortcoming of biochemical process in these class methods more, thus cause handle untimely, take up an area of big, energy consumption is high, investment is many, the new a series of problems such as waste water and gas contaminated environment of generation also or in the processing procedure.

In commercial production such as cogeneration of heat and power or the boiler combustion process; Great amount of high-temperature waste gas is discharged in the capital; Its temperature generally all is higher than 100 ℃; These high-temp waste gas directly enter in the atmosphere as not being used, and the one, can cause the pollution of atmospheric environment, quickening to produce greenhouse effects, the 2nd, cause the heat energy in the high-temp waste gas to waste in a large number.

The present invention is directed to foregoing; A kind of urban original high temperature garbage waste gas aerobe drying method and system are provided; The waste heat that not only can make full use of in the high-temp waste gas promotes that the urban original garbage aerobic is biological dewatered; Can also utilize simultaneously the biological dewatered process of urban original garbage aerobic to remove particles contained pollutant in the high-temp waste gas, particle is to the pollution of atmosphere in the minimizing high-temp waste gas.

Summary of the invention

The invention provides a kind of urban original high temperature garbage waste gas aerobe drying method and system; Aerobic microbiological is in the presence of the biological conditioner of high temperature in the urban original rubbish; Utilize mixed outdoor new wind and oxygen and hot environment that high-temp waste gas provided respectively; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat are heated most of moisture and are evaporated to steam and with damp and hot waste gas form discharge, reach the biological dewatered purpose of urban original garbage aerobic; Realize that system of the present invention comprises the biological dewatered storehouse of urban original garbage aerobic, pressure fan etc.; The present invention also can adopt method and system such as automatic control and photo-catalyst deodorizing to reach further optimization.

More similar prior art; The present invention is because of using high-temp waste gas; Make that organic matter degree of decomposition in the urban original rubbish is higher, water evaporation quantity is bigger, shorter, the mummification more remarkable effect of drying process, and make rubbish obtain innoxious, minimizing, stabilization processes simultaneously; Use method and devices such as control and deodorization and sterilization automatically during while the present invention optimizes, thereby considerable improvement is arranged, a kind of preprocess method and system of economical and efficient is provided for next step recycling of municipal refuse at aspects such as accurate control and environmental protection.

A kind of urban original high temperature garbage waste gas aerobe drying method is characterized in that, comprises the following steps:

Set up the biological dewatered storehouse of urban original garbage aerobic, it is built-in with the biological dewatered main body of urban original garbage aerobic; The biological dewatered storehouse of said urban original garbage aerobic is furnished with pressure fan and high-temp waste gas conveyance conduit; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas.

Forced ventilation is implemented in the biological dewatered storehouse of urban original garbage aerobic, in mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said forced ventilation with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; The steam that produces in the biological dewatered process of urban original garbage aerobic is discharged by said forced ventilation with damp and hot waste gas form; Remove the most of moisture in the urban original rubbish with this, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification.

The biological dewatered storehouse of said urban original garbage aerobic also can be furnished with automatic control system and photo-catalyst odor removal and step, accomplishes the optimizing process of urban original high temperature garbage waste gas aerobe mummification.

During enforcement; The biological dewatered storehouse of said urban original garbage aerobic is meant that urban original rubbish is in order to accomplish the enclosure space of aerobe drying process; It is built-in with the biological dewatered main body of urban original garbage aerobic, the biological dewatered main body of said urban original garbage aerobic be by through weigh, urban original rubbish after the coarse crushing forms after adding the biological conditioner of high temperature; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously.

During enforcement, said ratio is meant the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas; Forced ventilation is implemented in the biological dewatered storehouse of urban original garbage aerobic, in mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said forced ventilation with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said steam is discharged in the biological dewatered storehouse of urban original garbage aerobic by forced ventilation with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this.

During enforcement; Can comprise that automatic control step is optimized; Said automatic control step is meant through the temperature of on-line monitoring biological dewatered main body of said urban original garbage aerobic and environment of living in thereof, oxygen content, the isoparametric data of humidity amount; And, control biological dewatered time of urban original garbage aerobic and effect automatically through feedback data adjusting mist air quantity and outdoor resh air requirement; Adopt automatic control step can control the biological dewatered process of urban original garbage aerobic more accurately.

During enforcement; Can comprise that the photo-catalyst deodorization step is optimized; Said photo-catalyst deodorizing is meant that photochemical catalyst produces light induced electron and hole under the ultraviolet ray irradiation; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to be generated directly decompose, or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere.

A kind of urban original high temperature garbage waste gas aerobe anhydration system is characterized in that, comprising:

Set up the biological dewatered storehouse of urban original garbage aerobic, it is built-in with the biological dewatered main body of urban original garbage aerobic; The biological dewatered storehouse of said urban original garbage aerobic is furnished with pressure fan and high-temp waste gas conveyance conduit; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas.

Said pressure fan is implemented forced ventilation to the biological dewatered storehouse of said urban original garbage aerobic; Said pressure fan is with mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; The steam that produces in the biological dewatered process of urban original garbage aerobic is discharged by said pressure fan with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this.

The biological dewatered storehouse of said urban original garbage aerobic also can be furnished with automatic control system and photo-catalyst odor removal, accomplishes the optimizing process of urban original high temperature garbage waste gas aerobe mummification.

During enforcement; The biological dewatered storehouse of said urban original garbage aerobic is meant that urban original rubbish is in order to accomplish the enclosure space of aerobe drying process; It is built-in with the biological dewatered main body of urban original garbage aerobic, the biological dewatered main body of said urban original garbage aerobic be by through weigh, urban original rubbish after the coarse crushing forms after adding the biological conditioner of high temperature; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously; Bottom, the biological dewatered storehouse of said urban original garbage aerobic is provided with air-supply passage, and its top is provided with exhaust outlet; Lay concrete double-edged fine-toothed comb and wire netting on the said air-supply passage, be equipped with the biological dewatered main body of urban original garbage aerobic on the said wire netting; The forced ventilation system of said pressure fan is accomplished through connecting with installations; The air inlet of said pressure fan is connected with high-temp waste gas pipeline and outdoor fresh wind tube road through intake stack; Outdoor fresh wind tube road is provided with new wind control valve; The air outlet of said pressure fan is connected with air-supply passage through air supply duct, and said pressure fan is accomplished air draft through the exhaust outlet in the biological dewatered storehouse of said urban original garbage aerobic through exhaust duct.

During enforcement, said ratio is the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas; According to the connected mode between each facility described in the specification [0024]; Said pressure fan is implemented forced ventilation to the biological dewatered storehouse of said urban original garbage aerobic; In mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said pressure fan with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said steam is discharged in the biological dewatered storehouse of urban original garbage aerobic by pressure fan with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this.

During enforcement, can adopt automatic control system, said automatic control system mainly comprises monitoring probe, control element and control circuit; Said monitoring probe comprises temperature monitoring probe, oxygen content monitoring probe and the humidity detection probe that is arranged in the biological dewatered main body of urban original garbage aerobic; The data of control such as said monitoring probe on-line monitoring temperature, oxygen concentration and humidity parameter; Said control element is regulated pressure fan and new wind control valve through the feedback data of each parameter, to be more conducive to control automatically biological dewatered time and the effect of said urban original garbage aerobic; Adopt the step system of control automatically can control the biological dewatered process of urban original garbage aerobic more accurately.

During enforcement, can adopt the photo-catalyst odor removal to be optimized, said photo-catalyst odor removal mainly comprises primary filter net, quartz burner, photochemical catalyst plate, casing, air draft inlet and wind exhausting outlet; Said damp and hot waste gas by said pressure fan from the exhaust outlet in the biological dewatered storehouse of said urban original garbage aerobic in exhaust duct drains into the casing of said photo-catalyst odor removal; At first carry out the filtration of coarse granule etc. through the primary filter net; Secondly carry out ultraviolet sterilization through quartz burner; Pass through the photochemical catalyst plate at last; Said photochemical catalyst plate produces light induced electron and hole under the quartz burner irradiation; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to produce directly decompose, or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere by said pressure fan through exhaust duct again; Adopt the waste gas that produces in the purifying city crude waste aerobe mummification to a greater degree of said photo-catalyst odor removal, avoid causing environmental problems such as pollution once more.

High-temp waste gas described in the present invention is following to the effect in each stage in the biological dewatered process of urban original garbage aerobic: the temperature rise period; Said high-temp waste gas forms hot environment, improves the temperature of the biological dewatered main body of said urban original garbage aerobic rapidly, and warm aerobic microbiological is bred in a large number in the promotion; With rapid decomposition simple organic and release heat; The biological dewatered body temperature of said urban original garbage aerobic improves rapidly, shortens temperature-rise period, simultaneously under the effect of the biological conditioner of said high temperature; The biological dewatered body temperature of the garbage aerobic state that can within 12 hours, reach a high temperature has shortened than 2~3 days temperature raising period originally greatly; Hot stage; Microorganism breeds high-temperature aerobic in a large number; Decomposing a large amount of oxygen of consumption in the complicated organic matter process rapidly, only send outdoor new wind delivering oxygen can cause urban original garbage aerobic mummification body temperature to reduce rapidly through adding in a large number, be unfavorable for the removal of the innoxious and moisture of rubbish; Outdoor new wind described in the present invention in the mist provides sufficient oxygen, impels aerobic microbiological to breed in a large number; High-temp waste gas provides heat on the other hand, keeps the temperature of the biological dewatered main body of the former garbage aerobic in said city, makes in the said urban original rubbish that organic matter decomposes more fully, water evaporates is rapider; Temperature-fall period; Aerobic microbiological mortality or get into rest period; Said aerobe mummification is proceeded under the effect of the contained various enzymes of microorganism; The biological dewatered heat that discharges of urban original garbage aerobic reduces gradually, and the heat that said high-temp waste gas provides more can promote the further evaporation of moisture once more.

More similar prior art; The present invention is because of adopting said high-temp waste gas; Make in the urban original rubbish that the organic matter degree of decomposition is higher, water evaporation quantity is bigger, shorter, the mummification more remarkable effect of drying process, and make rubbish obtain innoxious, minimizing, stabilization processes simultaneously.

A kind of urban original high temperature garbage waste gas aerobe drying method provided by the invention and system; Its bigger advantage is directly to carry out the aerobe drying and other treatment to the urban original rubbish that is transported to destructor plant; Need not letter sorting before the mummification, realize Fully-mechanized letter sorting after the mummification; The waste heat that the present invention simultaneously not only can make full use of in the high-temp waste gas promotes that the urban original garbage aerobic is biological dewatered; Can also utilize simultaneously the biological dewatered process of urban original garbage aerobic to remove particles contained pollutant in the high-temp waste gas, particle is to the pollution of atmosphere in the minimizing high-temp waste gas; And, the present invention uses method and device such as control and photo-catalyst deodorizing automatically in optimizing; Thereby at aspects such as precisely control, used heat utilization, environmental protection considerable improvement is arranged, a kind of preprocess method and system of economical and efficient is provided for next step recycling of municipal refuse.

Description of drawings (noting numbering)

Fig. 1 urban original high temperature garbage waste gas aerobe drying method flow implementation illustration intention

Fig. 2 urban original high temperature garbage waste gas aerobe anhydration system embodiment sketch map

Fig. 3 photo-catalyst odor removal structure embodiment sketch map

Description of reference numerals:

The biological dewatered storehouse of 1-urban original garbage aerobic, the biological dewatered main body of 11-urban original garbage aerobic, 12-air-supply passage, 13-concrete double-edged fine-toothed comb, 14-wire netting, 15-exhaust outlet;

The 2-pressure fan, 21-fresh wind tube road, 22-high-temp waste gas pipeline, 23-intake stack, 24-air supply duct, the new wind control valve of 25-;

The 3-automatic control system, 31-temperature monitoring probe, 32-oxygen content monitoring probe, 33-humidity detection probe;

4-photo-catalyst odor removal, 41-primary filter net, 42-quartz burner, 43-photochemical catalyst plate, 44-casing, 45-air draft inlet, 46-wind exhausting outlet, 47~48-air supply duct.

The specific embodiment

See also shown in Figure 1ly, be used to realize a kind of urban original high temperature garbage waste gas aerobe drying method flow implementation illustration intention of the present invention.

Said urban original high temperature garbage waste gas aerobe drying method 5 comprises following 51~56 totally six steps:

At first, set up the biological dewatered storehouse of urban original garbage aerobic, for it is furnished with pressure fan, automatic control system, photo-catalyst odor removal and high-temp waste gas conveyance conduit with step 51; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas.

Then carry out step 52, with through weigh, urban original rubbish after the coarse crushing adds the biological conditioner of high temperature and is placed in the biological dewatered storehouse of said urban original garbage aerobic the biological dewatered main body of urban original garbage aerobic of formation; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously

Then carry out step 53; Forced ventilation is implemented in the biological dewatered storehouse of urban original garbage aerobic; In mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said forced ventilation with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said ratio is meant the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas.

Carry out step 54 simultaneously, said steam is discharged from the biological dewatered storehouse of urban original garbage aerobic by forced ventilation with damp and hot waste gas form, remove the most of moisture in the urban original rubbish with this.

Carry out step 55-photo-catalyst deodorization step simultaneously; Said photo-catalyst deodorizing is meant that photochemical catalyst produces light induced electron and hole under the ultraviolet ray irradiation; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to be generated directly decompose; Or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere; Adopt the waste gas that produces in the purifying city crude waste aerobe mummification to a greater degree of said photo-catalyst deodorization step, avoid causing environmental problems such as pollution once more.

Whole process is carried out step 56-simultaneously and is controlled step automatically; Said automatic control step is meant through the temperature of on-line monitoring biological dewatered main body of said urban original garbage aerobic and environment of living in thereof, oxygen content, the isoparametric data of humidity amount; And, control biological dewatered time of urban original garbage aerobic and effect automatically through feedback data adjusting mist air quantity and outdoor resh air requirement; Adopt step 56 can control urban original garbage aerobic biology more accurately in the change process.

See also shown in Figure 2ly, be used to realize a kind of urban original high temperature garbage waste gas aerobe anhydration system embodiment sketch map of the present invention.

See also shown in Figure 3ly, be used to realize a kind of photo-catalyst odor removal embodiment sketch map of the present invention.

Said urban original high temperature garbage waste gas aerobe anhydration system 6 comprises the biological dewatered storehouse of urban original garbage aerobic 1, pressure fan 2, automatic control system 3, photo-catalyst odor removal 4 and high-temp waste gas conveyance conduit; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas.

The biological dewatered storehouse 1 of the said urban original garbage aerobic of present embodiment is meant that urban original rubbish is in order to accomplish the enclosure space of aerobe drying process; It is built-in with the biological dewatered main body 11 of urban original garbage aerobic, the biological dewatered main body 11 of said urban original garbage aerobic be by through weigh, urban original rubbish after the coarse crushing forms after adding the biological conditioner of high temperature; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously; 1 bottom, the biological dewatered storehouse of said urban original garbage aerobic is provided with air-supply passage 12, and its top is provided with exhaust outlet 15; Lay concrete double-edged fine-toothed comb 13 and wire netting 14 on the said air-supply passage, be equipped with the biological dewatered main body 11 of urban original garbage aerobic on the said wire netting 14; The forced ventilation system of said pressure fan 2 is accomplished through connecting with installations; The air inlet of said pressure fan 2 is connected with fresh wind tube road 21 and high-temp waste gas pipeline 22 through intake stack 23; Fresh wind tube road 21 is provided with new wind control valve 25; The air outlet of said pressure fan 2 is connected with air-supply passage 12 through air supply duct 22; Said pressure fan 2 is accomplished air draft through the exhaust outlet 15 in the biological dewatered storehouse 1 of said urban original garbage aerobic, and exhaust outlet 15 is connected with the air draft inlet 45 of photo-catalyst odor removal 4 through exhaust duct 47, and the wind exhausting outlet 46 of photo-catalyst odor removal 4 is through exhaust duct 48 and atmosphere.

Ratio described in the present embodiment is the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas; According to the connected mode between each facility described in the specification [0045]; In mixed gas delivery to the biological dewatered main body 11 of said urban original garbage aerobic of said pressure fan 2 with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body 11 of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said steam is discharged from the exhaust outlet 15 in the biological dewatered storehouse 1 of urban original garbage aerobic through exhaust duct 47 by pressure fan 2 with damp and hot waste gas form; Remove the most of moisture in the urban original rubbish with this, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification.

Present embodiment adopts the photo-catalyst odor removal to be optimized, and said photo-catalyst odor removal mainly comprises primary filter net 41, quartz burner 42, photochemical catalyst plate 43, casing 44, air draft inlet 45 and wind exhausting outlet 46; Said damp and hot waste gas is drained in the casing 44 of said photo-catalyst odor removal 4 from the biological dewatered storehouse of said urban original garbage aerobic by said pressure fan 2; At first carry out the filtration of coarse granule etc. through primary filter net 41; Secondly carry out ultraviolet sterilization through quartz burner 42, pass through photochemical catalyst plate 43 at last; Photochemical catalyst plate 43 produces light induced electron and hole under quartz burner 42 irradiations; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to produce directly decompose; Or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere by said pressure fan 2 through exhaust duct 48 again; Adopt the waste gas that produces in the purifying city crude waste aerobe mummification to a greater degree of said photo-catalyst odor removal, avoid causing environmental problems such as pollution once more.

Present embodiment adopts automatic control system 3, and said automatic control system 3 mainly comprises monitoring probe, control element and control circuit; Said monitoring probe comprises temperature monitoring probe 31, oxygen content monitoring probe 32 and the humidity detection probe 33 that is arranged in the biological dewatered main body 11 of urban original garbage aerobic; The data of control such as said monitoring probe on-line monitoring temperature, oxygen concentration and humidity parameter; Said control element is regulated pressure fan 2 and new wind control valve 25 through the feedback data of each parameter, to be more conducive to control automatically biological dewatered time and the effect of said urban original garbage aerobic; Adopt the step system of control automatically can control the biological dewatered process of urban original garbage aerobic more accurately.

The above is merely embodiments of the invention, can not limit the scope of the invention with this.The equalization of promptly doing according to application range of the present invention in every case changes and modifies, and will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention, and the former capital should be regarded as further enforcement situation of the present invention.

Claims (10)

1. a urban original high temperature garbage waste gas aerobe drying method is characterized in that, comprises the following steps:
Set up the biological dewatered storehouse of urban original garbage aerobic, it is built-in with the biological dewatered main body of urban original garbage aerobic; The biological dewatered storehouse of said urban original garbage aerobic is furnished with pressure fan and high-temp waste gas conveyance conduit; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas;
Forced ventilation is implemented in the biological dewatered storehouse of urban original garbage aerobic, in mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said forced ventilation with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; The steam that produces in the biological dewatered process of urban original garbage aerobic is discharged by said forced ventilation with damp and hot waste gas form; Remove the most of moisture in the urban original rubbish with this, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification;
The biological dewatered storehouse of said urban original garbage aerobic also can be furnished with automatic control system and photo-catalyst odor removal and step, accomplishes the optimizing process of urban original high temperature garbage waste gas aerobe mummification.
2. a kind of urban original high temperature garbage waste gas aerobe drying method as claimed in claim 1; It is characterized in that; The biological dewatered storehouse of said urban original garbage aerobic is meant that urban original rubbish is in order to accomplish the enclosure space of aerobe mummification; It is built-in with the biological dewatered main body of urban original garbage aerobic, the biological dewatered main body of said urban original garbage aerobic be by through weigh, urban original rubbish after the coarse crushing forms after adding the biological conditioner of high temperature; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously.
3. a kind of urban original high temperature garbage waste gas aerobe drying method as claimed in claim 1 is characterized in that, said ratio is meant the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas; Forced ventilation is implemented in the biological dewatered storehouse of urban original garbage aerobic, in mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said forced ventilation with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said steam is discharged in the biological dewatered storehouse of urban original garbage aerobic by forced ventilation with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this.
4. a kind of urban original high temperature garbage waste gas aerobe drying method as claimed in claim 1; It is characterized in that; Can comprise that automatic control step is optimized; Said automatic control step is meant through the temperature of on-line monitoring biological dewatered main body of said urban original garbage aerobic and environment of living in thereof, oxygen content, the isoparametric data of humidity amount, and through feedback data adjusting mist air quantity and outdoor resh air requirement, controls biological dewatered time of urban original garbage aerobic and effect automatically.
5. a kind of urban original high temperature garbage waste gas aerobe drying method as claimed in claim 1; It is characterized in that; Can comprise that the photo-catalyst deodorization step is optimized; Said photo-catalyst deodorizing is meant that photochemical catalyst produces light induced electron and hole under the ultraviolet ray irradiation; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to be generated directly decompose, or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere.
6. a urban original high temperature garbage waste gas aerobe anhydration system is characterized in that, comprising: set up the biological dewatered storehouse of urban original garbage aerobic, it is built-in with the biological dewatered main body of urban original garbage aerobic; The biological dewatered storehouse of said urban original garbage aerobic is furnished with pressure fan and high-temp waste gas conveyance conduit; Said high-temp waste gas is meant that the temperature of discharging in commercial production or the boiler combustion process is higher than 70 ℃ gas;
Said pressure fan is implemented forced ventilation to the biological dewatered storehouse of said urban original garbage aerobic; Said pressure fan is with mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; The steam that produces in the biological dewatered process of urban original garbage aerobic is discharged by said pressure fan with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this;
The biological dewatered storehouse of said urban original garbage aerobic also can be furnished with automatic control system and photo-catalyst odor removal, accomplishes the optimizing process of urban original high temperature garbage waste gas aerobe mummification.
7. a kind of urban original high temperature garbage waste gas aerobe anhydration system as claimed in claim 6; It is characterized in that; The biological dewatered storehouse of said urban original garbage aerobic is meant that urban original rubbish is in order to accomplish the enclosure space of aerobe drying process; It is built-in with the biological dewatered main body of urban original garbage aerobic, the biological dewatered main body of said urban original garbage aerobic be by through weigh, urban original rubbish after the coarse crushing forms after adding the biological conditioner of high temperature; But the biological conditioner of said high temperature mainly is made up of the organic aerobic microbiological flora of multiple efficient degradation; It can accelerate organic matter degradation speed in the biological dewatered process of urban original garbage aerobic; Shorten the urban original biological dewatered heating-up time of garbage aerobic; And can suppress the stink generation, substitute the vaccination ways that percolate returns spray simultaneously; Bottom, the biological dewatered storehouse of said urban original garbage aerobic is provided with air-supply passage, and its top is provided with exhaust outlet; Lay concrete double-edged fine-toothed comb and wire netting on the said air-supply passage, be equipped with the biological dewatered main body of urban original garbage aerobic on the said wire netting; The forced ventilation system of said pressure fan is accomplished through connecting with installations; The air inlet of said pressure fan is connected with high-temp waste gas pipeline and outdoor fresh wind tube road through intake stack; Outdoor fresh wind tube road is provided with new wind control valve; The air outlet of said pressure fan is connected with air-supply passage through air supply duct, and said pressure fan is accomplished air draft through the exhaust outlet in the biological dewatered storehouse of said urban original garbage aerobic through exhaust duct.
8. a kind of urban original high temperature garbage waste gas aerobe anhydration system as claimed in claim 6 is characterized in that, said ratio is the ratio according to outer new wind of the biological dewatered middle requisite oxygen tolerance conditioning chamber of urban original garbage aerobic and high-temp waste gas; According to the connected mode between each facility described in the claim 7; Said pressure fan is implemented forced ventilation to the biological dewatered storehouse of said urban original garbage aerobic; In mixed gas delivery to the biological dewatered main body of said urban original garbage aerobic of said pressure fan with outdoor new wind and high-temp waste gas, in order to impel the urban original garbage aerobic biological dewatered; Aerobic microbiological in the biological dewatered main body of said urban original garbage aerobic is in the presence of the biological conditioner of high temperature; The hot environment of utilizing outdoor new wind provided in the said mist oxygen and said high-temp waste gas to form; Organic matter in the urban original rubbish is decomposed into moisture and other inorganic matters; And discharging heat, said hot environment and said heat make the most of original moisture in the urban original rubbish and decompose the moisture that produces and be heated and be evaporated to steam; Said steam is discharged from the biological dewatered storehouse of urban original garbage aerobic by pressure fan with damp and hot waste gas form, remove the most of moisture in the urban original rubbish, accomplish the basic process of urban original high temperature garbage waste gas aerobe mummification with this.
9. a kind of urban original high temperature garbage waste gas aerobe anhydration system as claimed in claim 6 is characterized in that can adopt automatic control system, said automatic control system mainly comprises monitoring probe, control element and control circuit; Said monitoring probe comprises temperature monitoring probe, oxygen content monitoring probe and the humidity detection probe that is arranged in the biological dewatered main body of urban original garbage aerobic; The data of control such as said monitoring probe on-line monitoring temperature, oxygen concentration and humidity parameter; Said control element is regulated pressure fan and new wind control valve through the feedback data of each parameter, to be more conducive to control automatically biological dewatered time and the effect of said urban original garbage aerobic.
10. a kind of urban original high temperature garbage waste gas aerobe anhydration system as claimed in claim 6; It is characterized in that; Can adopt the photo-catalyst odor removal to be optimized, said photo-catalyst odor removal mainly comprises primary filter net, quartz burner, photochemical catalyst plate, casing, air draft inlet and wind exhausting outlet; Said damp and hot waste gas by said pressure fan from the exhaust outlet in the biological dewatered storehouse of said urban original garbage aerobic in exhaust duct drains into the casing of said photo-catalyst odor removal; At first carry out the filtration of coarse granule etc. through the primary filter net; Secondly carry out ultraviolet sterilization through quartz burner; Pass through the photochemical catalyst plate at last; Said photochemical catalyst plate produces light induced electron and hole under the quartz burner irradiation; The high activity, the strong oxidative free radical that utilize light induced electron strong reducing property and hole strong oxidizing property to produce directly decompose, or through a series of oxidation chain reactions microorganism in the said damp and hot waste gas of degrading, the waste gas of handling through the photo-catalyst deodorizing drains into atmosphere by said pressure fan through exhaust duct again.
CN2012101855898A 2012-06-07 2012-06-07 Method and system for drying high-temperature waste gas aerobe in urban raw refuse CN102716895A (en)

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