CN1730175B - Domestic refuse comprehensive treatment method - Google Patents
Domestic refuse comprehensive treatment method Download PDFInfo
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- CN1730175B CN1730175B CN 200510021386 CN200510021386A CN1730175B CN 1730175 B CN1730175 B CN 1730175B CN 200510021386 CN200510021386 CN 200510021386 CN 200510021386 A CN200510021386 A CN 200510021386A CN 1730175 B CN1730175 B CN 1730175B
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Abstract
The invention relates to a consumer waste comprehensive processing method, which comprises preconditioning, fermentation comprehensive processing, burning, smoke cleaning and cramming. The invention is characterized in that spigot in fermentation comprehensive processing being made to organic composite fertilizer, furnace slag in burning being made to building combinations and fly ash being solidified and crammed, high-heat gas in smoke cleaning being the material in fermentation comprehensive processing, smoke gas in smoke cleaning being cooled and dedusted, purified fly ash being crammed after solidification.
Description
Technical field
The present invention relates to garbage treating process, particularly a kind of consumer waste comprehensively processing method.
Background technology
Present domestic domestic garbage comprehensive treatment technology, all focus on innoxious, minimizing, and require the subsidiary sanitary filling field of setting up, and only be with burning, compost, three kinds of simple combinations of technology of landfill, composite technology only is the machinery combination of single technology, and fail to give full play to the advantage of composite technology, and do not overcome the shortcoming of single technology simultaneously yet, make that to adopt the destructor plant operation conditions of composite technology very poor.Mainly there is following problem: 1, the characteristic variations rule of rubbish is held and forbidden, lack specific aim during technological design; 2, the technology and equipment of using other industry simply is used for garbage disposal, and the equipment that makes can not meet the demands; 3,, make treatment plant steady in a long-term not move to the variation of waste component and the variation bad adaptability of amount; 4, on technological standards, exist two kinds of problems: a kind of is that standard is too high, such as compost, in order to improve its organic value, adopts multiple complicated procedures of forming, and improves the value of creating behind the organic value, again can not the offset cost, cause the situation that loses more than gain; Another kind is that standard is too low, blindly applies mechanically country's agricultural garbage standard in 1987, though can produce the product that satisfies above-mentioned standard-required, at a discount, can't solve the problem that pin is received, pile up like a mountain in factory to make the so-called fertilizer of production; 5, the overlong time deposited in factory of untreated rubbish worsens the environment in the factory; 6, not enough to the heat energy utilization that burns, waste is big.
Summary of the invention
The integrated conduct method that the purpose of this invention is to provide a kind of house refuse, burning, compost, landfill, refuse fully recycled organically combine, innoxious, minimizing, resource have been realized, and solved situation in 250 ℃～400 ℃ generations " two dislike because of ", improve the utilization rate of resource, reduced the sufficient comprehensive utilization that obtains of useless accessory substance in the garbage disposal process and rubbish.
Technical scheme of the present invention is as follows:
A kind of consumer waste comprehensively processing method is characterized in that comprising at least that preliminary treatment, fermentation integrated treatment, burning disposal, incineration flue gas are handled, security landfill, and does not have sanitary filling field, wherein:
(A) screenings of fermentation integrated treatment is made compoiste fertilizer, and dry air tail gas after drying is the high-temperature sterilization gas of picking excess;
(B) burning disposal is that the oversize of oversize that preliminary treatment screening is obtained and fermentation integrated treatment is in the stepped incinerator at fire grate and burns, and the slag of burning disposal is to produce material or the flying dust security landfill of using in the building product after curing to producing; The high-temperature gas of incineration flue gas after the air heat exchanger heat exchange is the unstripped gas of baking step in the fermentation integrated treatment;
(C) flue gas of incineration flue gas after air heat exchanger, water-to-water heat exchanger heat exchange is by the cooling of chilling deacidification heat sink, again by the dust arrester dedusting; Flying dust security landfill after curing that incineration flue gas is handled.
Described preliminary treatment comprises adopt to hang tramp iron separator and the magnet cylinder screening machine screening rubbish to rubbish deironing, artificial hand selection and shake formula.
The slag of described burning disposal gained is produced building product again or the flying dust that produces is carried out security landfill after curing after hanging tramp iron separator, artificial hand selection and the deironing of magnet cylinder.
Described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting; Wherein: comprise at least once or once above fermentation, the time of fermentation was at 7～12 days for the first time, water content is that 20～30% fermentation screenings dry air tail gas after drying returns preliminary treatment and as the high-temperature sterilization gas of picking excess, the outlet temperature of dry air tail gas 〉=850 ℃, described high-temperature sterilization gas in sterilization after blower fan discharge after being discharged to the cyclone dust collectors dedusting.
The inlet temperature of the chilling deacidification heat sink that described incineration flue gas is handled is greater than 650 ℃, and outlet temperature is less than 250 ℃, and the time of incineration flue gas by chilling deacidification heat sink was 0.8～3 second.
Described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting, and wherein: fermentation comprises fermenting twice, and fermentation time is 20～30 days for the second time.
The present invention also has the following advantages: burning, compost, landfill, refuse are fully recycled very organically combined, realized innoxious, minimizing, resource, and solved the situation in 350 ℃～550 ℃ generations " two dislike because of "; Solved the problem that ubiquitous equipment dependability in the present composite technology is low, influence the normal operation of destructor plant; Can fully adapt to the variation of waste component; Improved the utilization rate of resource, reduced the useless accessory substance in the garbage disposal process, rubbish obtains sufficient comprehensive utilization, and the heat energy of 4 tons of rubbish generations is equal to and 1 ton of heat energy that coal produced; The fertilizer that the has solved comprehensive destructor plant problem of dissolving; Solve the problem of the need construction sanitary filling field that exists in the traditional composite technology, saved construction and operating cost greatly, reduced land seizure; Also realized oozing the zero-emission of drop liquid water delivery; Good exhausting system can be improved the atmospheric environment of destructor plant.
Accompanying drawing and drawing explanation
Fig. 1 is a flow chart of the present invention
Fig. 2 is the structural representation of house refuse feed arrangement of the present invention
Fig. 3 is the structural representation of house refuse equipment for removing ferric ion of the present invention
Fig. 4 is the structural representation of a kind of novel sieving garbage equipment of the present invention
Fig. 5 is the structural representation of domestic waste incineration of the present invention
Fig. 6 is the structural representation of domestic waste incineration flue gas processing device of the present invention
Fig. 5 is the structural representation of domestic waste incineration of the present invention
Fig. 6 is the structural representation of domestic waste incineration flue gas processing device of the present invention
Fig. 7 is the structural representation of ventilation unit under the domestic waste incineration fire grate of the present invention
Fig. 8 is the structural representation of domestic waste incineration charging jam-removal smokeproof sealing device of the present invention
Fig. 9 is that domestic waste incineration waste heat of the present invention is as the structural representation of drying with the composting device
Figure 10～11 are the structural representation of the comprehensive ventilation unit in house refuse picking post of the present invention
Specific embodiment
Embodiment 1
A kind of consumer waste comprehensively processing method is characterized in that comprising at least that preliminary treatment, fermentation integrated treatment, burning disposal, incineration flue gas are handled, security landfill, and does not have sanitary filling field, wherein:
(A) screenings of fermentation integrated treatment is made compoiste fertilizer, and dry air tail gas after drying is the high-temperature sterilization gas of picking excess;
(B) slag of burning disposal is to produce material or the flying dust security landfill of using in the building product after curing to producing; The high-temperature gas of incineration flue gas after the air heat exchanger heat exchange is the unstripped gas of baking step in the fermentation integrated treatment;
(C) flue gas of incineration flue gas after air heat exchanger, water-to-water heat exchanger heat exchange is by the cooling of chilling deacidification heat sink, again by the dust arrester dedusting; Flying dust security landfill after curing that incineration flue gas is handled.
Described preliminary treatment comprises adopt to hang tramp iron separator and the magnet cylinder screening machine screening rubbish to rubbish deironing, artificial hand selection and shake formula.
Described burning disposal is the oversize with preliminary treatment the screening oversize that obtains and the integrated treatment of fermenting, and is in the stepped incinerator at fire grate and burns; The slag of burning disposal gained is produced building product again or the flying dust that produces is carried out security landfill after hanging tramp iron separator, artificial hand selection and the deironing of magnet cylinder.
Described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting, wherein: comprise one time fermentation, the time of fermentation is 7 days, water content is that 20% fermentation screenings dry air tail gas after drying returns preliminary treatment and as the high-temperature sterilization gas of picking excess, the outlet temperature of dry air tail gas is 850 ℃, after blower fan discharges after being discharged to the cyclone dust collectors dedusting, the dust that cyclone dust collectors are removed returns in the last screening machine of fermentation integrated treatment through ball mill described high-temperature sterilization gas in sterilization.
The inlet temperature of the chilling deacidification heat sink that described incineration flue gas is handled is 700 ℃, and outlet temperature is 200 ℃, and the time of incineration flue gas by chilling deacidification heat sink was 0.8 second.
Embodiment 2
A kind of consumer waste comprehensively processing method is characterized in that comprising at least that preliminary treatment, fermentation integrated treatment, burning disposal, incineration flue gas are handled, security landfill, and does not have sanitary filling field, wherein:
(A) screenings of fermentation integrated treatment is made compoiste fertilizer, and dry air tail gas after drying is the high-temperature sterilization gas of picking excess;
(B) slag of burning disposal is to produce material or the flying dust security landfill after curing to producing that building product is used; High-temperature gas during incineration flue gas is handled is the unstripped gas of baking step in the fermentation integrated treatment;
(C) flue gas of incineration flue gas processing is by the cooling of chilling deacidification heat sink, again by the dust arrester dedusting; Flying dust security landfill after curing that incineration flue gas is handled.
Described preliminary treatment comprises adopt to hang tramp iron separator and the magnet cylinder screening machine screening rubbish to rubbish deironing, artificial hand selection and shake formula.
Described burning disposal is the oversize with preliminary treatment the screening oversize that obtains and the integrated treatment of fermenting, and is in the stepped incinerator at fire grate and burns; The slag of burning disposal gained is produced building product again or the flying dust that produces is carried out security landfill after hanging tramp iron separator, artificial hand selection and the deironing of magnet cylinder.
Described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting, wherein: comprise fermenting twice, the time of fermentation is 10 days for the first time, fermentation time is 20 days for the second time, water content is that 25% fermentation screenings dry air tail gas after drying returns preliminary treatment and as the high-temperature sterilization gas of picking excess, the outlet temperature of dry air tail gas is 900 ℃, after blower fan discharges after being discharged to the cyclone dust collectors dedusting, the dust that cyclone dust collectors are removed returns in the last screening machine of fermentation integrated treatment through ball mill described high-temperature sterilization gas in sterilization.
The inlet temperature of the chilling deacidification heat sink that described incineration flue gas is handled is 800 ℃, and outlet temperature is 150 ℃, and the time of incineration flue gas by chilling deacidification heat sink was 1 second.
Embodiment 3
A kind of consumer waste comprehensively processing method is characterized in that comprising at least that preliminary treatment, fermentation integrated treatment, burning disposal, incineration flue gas are handled, security landfill, and does not have sanitary filling field, wherein:
(A) screenings of fermentation integrated treatment is made compoiste fertilizer, and dry air tail gas after drying is the high-temperature sterilization gas of picking excess;
(B) slag of burning disposal is to produce material or the flying dust security landfill after curing to producing that building product is used; High-temperature gas during incineration flue gas is handled is the unstripped gas of baking step in the fermentation integrated treatment;
(C) flue gas of incineration flue gas processing is by the cooling of chilling deacidification heat sink, again by the dust arrester dedusting; Flying dust security landfill after curing that incineration flue gas is handled.
Described preliminary treatment comprises adopt to hang tramp iron separator and the magnet cylinder screening machine screening rubbish to rubbish deironing, artificial hand selection and shake formula.
Described burning disposal is the oversize with preliminary treatment the screening oversize that obtains and the integrated treatment of fermenting, and is in the stepped incinerator at fire grate and burns; The slag of burning disposal gained is produced building product again or the flying dust that produces is carried out security landfill after hanging tramp iron separator, artificial hand selection and the deironing of magnet cylinder.
Described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting, wherein: comprise fermenting twice, the time of fermentation is 12 days for the first time, fermentation time is 25 days for the second time, water content is that 30% fermentation screenings dry air tail gas after drying returns preliminary treatment and as the high-temperature sterilization gas of picking excess, the outlet temperature of dry air tail gas is 950 ℃, after blower fan discharges after being discharged to the cyclone dust collectors dedusting, the dust that cyclone dust collectors are removed returns in the last screening machine of fermentation integrated treatment through ball mill described high-temperature sterilization gas in sterilization.
The inlet temperature of the chilling deacidification heat sink that described incineration flue gas is handled is 850 ℃, and outlet temperature is 100 ℃, and the time of incineration flue gas by chilling deacidification heat sink was 2 seconds.
Embodiment 4
Be provided with the consumer waste comprehensively processing method of house refuse feed arrangement, see Fig. 2.
A kind of house refuse feed arrangement comprises hopper base, transmission device, hopper and refiner, it is characterized in that: two or more independently hopper is positioned at the top of refiner at least, and the unlatching of staggering the time of the feed switch gate of each hopper.
Described feed switch gate is connected with hydraulic means by the gate action tank respectively with refiner, the unlatching number of gate and be complementary through the blanking amount of hopper and the point-to-point speed of refiner.
Described refiner can be provided with speed adjusting device according to actual operational position.
Embodiment 5
Be provided with the consumer waste comprehensively processing method of domestic garbage comprehensive equipment for removing ferric ion, see Fig. 3.
A kind of comprehensive equipment for removing ferric ion of house refuse, comprise support, drum apparatus, belt, carrying roller, tramp iron separator, metal detector, picking case and belt cleaner, it is characterized in that: suspension type tramp iron separator, metal detector and picking case lay respectively at front portion, middle part and the rear portion of belt direction of advance, rear end cylinder in the drum apparatus is magnetic, belt cleaner is positioned at the bottom of belt direction of advance rear end, be fixed on the carrying roller, be the angle of inclination with belt.
Described belt cleaner and belt direction of advance are the acute angle of inclination.
Described suspension type tramp iron separator comprises inhales the iron device, inhales the top that the iron device is positioned at belt, with the vertical range of belt be the maximum height of rubbish on belt.
Suspension type tramp iron separator of the present utility model is that iron material contained in the rubbish top layer is removed, through metal detector the iron material that the rubbish middle and bottom layers is contained is carried out bit selecting and appointment, so that follow-up artificial screening, artificial screening is to carry out in the picking case, the iron material that artificial screening is omitted is by the rear end cylinder in the drum apparatus, on the one hand rubbish is transported in the follow-up workshop section, can the iron material of rubbish middle and bottom layers be deviate from the rubbish once more by the rear end cylinder that is magnetic on the other hand, remove through belt cleaner.
Embodiment 6
Be provided with a kind of consumer waste comprehensively processing method of novel sieving garbage equipment, see Fig. 4.
A kind of novel sieving garbage equipment, comprise screen box, linkage, transmission mechanism, support, suspension apparatus, turn sieve basket, gravity flow screen basket, it is characterized in that: the compass screen surface of described turn sieve basket and gravity flow screen basket all is list structure, list structure that direction is set is consistent with the incline direction of compass screen surface; The turn sieve basket is positioned at the upper end of gravity flow screen basket, is connected with the movable hinge of gravity flow screen basket, does 0 °～90 ° rotation around the hinge on gravity flow screen basket top.
The cross section of the sieve bar of described list structure is rounded, and is perhaps square, perhaps triangle, perhaps other random geometries.
Described linkage is positioned at the bottom of turn sieve basket, and linkage one end is connected with transmission mechanism, and the other end is connected with the turn sieve basket, and sieve basket pull bar top is provided with spring, and spring extends upwardly the top or draws to transferring, and drives the motion in the same way of sieve basket; The screen box wall be positioned at the turn sieve basket above be provided with pressing plate.
The spacing of described strip sieve bar is 80～100mm.
The compass screen surface horizontal hunting direction of described turn sieve basket and gravity flow screen basket is swing or swings.
The angle of described gravity flow screen basket and horizontal plane is 15 °～45 °.
Embodiment 7
Be provided with the consumer waste comprehensively processing method of domestic waste incineration, see Fig. 5.
A kind of domestic waste incineration, comprise fire door, smoke pipe, fire grate, feed hopper, grate, dual firing chamber, body of heater, it is characterized in that: the fire grate in the body of heater is staged multistage independent distribution, and the below of each section fire grate is respectively arranged with ventilation unit and the corresponding slag notch that comprises the independent ventilation chamber.
Describedly be stepped fire grate and comprise the respectively upper, middle and lower fire grate of corresponding dryer section, main combustion section and burning segment, and independent closed between the draft chamber of each fire grate below.
The below of described each slag notch is respectively arranged with the slag conveying worm, also is provided with the slag outlet at the end of the bottom of incinerator lower fire grating, and the below of slag outlet is provided with scraper slagging machine.
Described slag notch is communicated with draft chamber independently through blow valve respectively.
Totally two of described slag conveying worms, corresponding main section slag notch and burning segment slag notch, another the corresponding dryer section slag notch of firing.
The charging aperture place of described feed hopper is provided with gate, and gate is vertically vertical with feed hopper, and gate is complementary to interlock with the pusher that is positioned at the feed hopper bottom and links.
Described scraper slagging machine is provided with flight chain.
Embodiment 8
Be provided with the consumer waste comprehensively processing method of domestic waste incineration flue gas processing device, see Fig. 6.
A kind of domestic waste incineration flue gas processing device, comprise incinerator, smoke pipe, airduct, heat exchanger, water heater, chilling removes acid tower, cyclone dust collectors, sack cleaner, air-introduced machine, flue, it is characterized in that: the other end of the smoke pipe that is connected with incinerator is communicated with plural at least heat exchanger is in parallel respectively, and have at least one independently the gas outlet of heat exchanger be communicated with through the air inlet of airduct with the incinerator dryer section, the top that described chilling removes acid tower is provided with the buck sprayer unit, removes at chilling between the feed pipe of the discharge pipe of acid tower and sack cleaner and is provided with cyclone dust collectors.
Described buck sprayer unit comprises the person in charge, the ring pipe that is connected with the person in charge, be connected with at least one arm on the described ring pipe, junction at ring pipe and arm is provided with atomizer, be disposed with magnetic valve and stop valve on the described arm, the number of described atomizer, battery valve and stop valve and the number of arm are complementary.
The pipe of described heat exchanger is connected with the air inlet that chilling removes acid tower, the escape pipe of heat exchanger is communicated with through the air inlet of airduct with the incinerator dryer section, like this, the flue gas that heat exchanger will come from the incinerator master section of combustion returns after heat exchange and is transported to the incinerator dryer section, utilizes waste heat to carry out drying.
The entrance point of described buck sprayer unit is communicated with through water pump with the alkali lye pond.
Connecting pipe between described cyclone dust collectors and the sack cleaner is provided with Temperature Detector, and is provided with connecting pipe and valve when being used to overhaul sack cleaner between the admission line of sack cleaner and outlet pipe.Like this, when needs overhaul sack cleaner, open the valve that is arranged on the sack cleaner admission line, the flue gas after cyclone dust collectors are handled is directly just got rid of through flue.
Embodiment 9
Be provided with the consumer waste comprehensively processing method of ventilation unit under the domestic waste incineration fire grate, see Fig. 7.
Ventilation unit under a kind of domestic waste incineration fire grate, comprise incinerator, air blast, heat exchanger, main smoke pipe, warm-air pipe, volume damper, dryer section ventilation combination, the ventilation combination of master's combustion section and burning segment ventilation combination, it is characterized in that: be connected with at least two smoke pipe arms on the described main smoke pipe, the other end of described smoke pipe arm is communicated with plural at least air heat exchanger is in parallel respectively, and have at least one independently the gas outlet of air heat exchanger make up with the dryer section ventilation of incinerator through warm-air pipe and be communicated with.
The number and the warm-air pipe of described air blast and air heat exchanger are complementary.
Described smoke pipe arm and air blast, air heat exchanger, warm-air pipe are connected into independently whole with main ventilation of firing section or burning segment or dryer section respectively.Described volume damper is arranged in the warm-air pipe.
Embodiment 10
Be provided with the consumer waste comprehensively processing method of domestic waste incineration charging jam-removal smokeproof sealing device, see Fig. 8.
A kind of domestic waste incineration charging jam-removal smokeproof sealing device, comprise incinerator, oil cylinder, hydraulic control device, the feed hopper and the pusher of fixedlying connected with the stockhole in the incinerator, it is characterized in that: in described feed hopper, also be provided with gate and gate and be connected with hydraulic control device, the interlocking interlock with pusher.
Described gate with the feed hopper bottom vertical, promotes to do moving up and down of vertical direction through oil cylinder in feed hopper between pusher and feed hopper suitable for reading.
Pusher is positioned on the feed hopper bottom level position, does seesawing of horizontal direction in feed hopper.
Described oil cylinder is fixed on the outer side of feed hopper by cylinder support.
The utility model hydraulic control device acts on oil cylinder, and when pusher began forward pusher, gate was in closure state, and the rubbish material is pushed in the burner hearth by pusher, the feed hopper of pusher sealing simultaneously bottom inlet; Pusher is finished pusher action, the gate unlatching that moves upward, rubbish material blanking from feed hopper; Pusher resets, and promptly returns the home position, and gate moves downward closes, and the rubbish material is deposited in sealing place of feed hopper inner gate; When rubbish stops up in the feed hopper bottom, carry out pusher in the time of can travelling forward by pusher on the one hand, can move downward the extruding pusher by gate on the other hand, reach and eliminate the purpose that the rubbish material stops up the feed hopper bottom, promptly realize disappearing arch, thereby realized the purpose of this utility model.
Embodiment 11
Be provided with the domestic waste incineration waste heat as the consumer waste comprehensively processing method of drying, see Fig. 9 with the composting device.
A kind of domestic waste incineration waste heat is as drying composting device, comprise incinerator, heat exchanger, the burning high temperature fume pipe, air blast, the output fume pipe, airduct, belt feeder, the charging device of holding one's breath, drier, the discharging device of holding one's breath, sack cleaner and composting device, airduct comprises the cool air hose before being positioned at the warm-air pipe behind the heat exchanger and being positioned at heat exchanger, it is characterized in that: burning high temperature fume Guan Yiduan is communicated with incinerator, the other end is communicated with heat exchanger, heat exchanger ventilating opening one end is communicated with air blast is airtight, the other end is communicated with warm-air pipe is airtight, warm-air pipe is taken over the air intake of drier and is connected, the hold one's breath outlet of device of the charging aperture of drier and charging is connected, discharging opening and the discharging device of holding one's breath is connected, form airtight integral body, the discharging device of holding one's breath is connected with the composting device through belt feeder.
Described charging device and the discharging device of holding one's breath of holding one's breath comprises impeller, housing and blocks impeller and the anti-sticking hyoplastron of body clearance that the anti-sticking hyoplastron is fixed on the outside of impeller in the housing.
Fit clearance is 0.1～0.15mm between described impeller and the housing.
The outer tube of described heat exchanger is square formation formula in-line arrangement to be arranged, and is provided with the flue dust cleaning plant in the described heat exchanger.
Embodiment 12
Be provided with the consumer waste comprehensively processing method of the comprehensive ventilation unit in house refuse picking post, see Figure 10～11.
The comprehensive ventilation unit in a kind of house refuse picking post, comprise ajutage, air-supply processor, exhaust column, exhausting processor, picking exhaust hood, one end of described exhaust column is arranged on the exhausting processor, one end of described ajutage is arranged on the air-supply processor pipe, it is characterized in that: be positioned at exhaust column that the ajutage of the outer operating surface of picking exhaust hood top is connected with top, the picking exhaust hood rear chamber at picking exhaust hood formation circulative convection.
Described ajutage enters the mouth and is complementary with the outlet of exhaust column and the number in picking post.
Side in the picking exhaust hood is provided with the air uniform plate of the outlet of blocking exhaust column.Air uniform plate is in order to prevent that exhaust column from the direct suction exhaust column, guaranteeing that exhaust column can be not blocked with rubbish when extracting the air of rubbish dirt.
Be provided with the airduct control valve in described ajutage and the exhaust column.
Embodiment 13
Process chart of the present invention is seen Fig. 1.The preliminary treatment of rubbish is provided with electronics weighing apparatus weighing crude waste, refining, deironing, picking, screening, the domestic garbage comprehensive equipment for removing ferric ion has been removed the iron material in the crude waste, the artificial hand selection obtains the rubbish of recyclable utilization, the integrated treatment of fermenting of the screenings that obtains of screening.
The one grade fermemtation that the fermentation integrated treatment adopts the biological inoculum dispenser to carry out 7～12 days, fermentation also need provide oxygen simultaneously, fermentation gas is through scrubbing tower washing back discharging, and the drop liquid that oozes after washings and the fermentation flows to ooze to be recovered in the fermentate after the drop liquid pool is handled by closed conduit and utilizes; Rubbish behind the one grade fermemtation passes through refining, screening again, and screenings enters dryer through about 25 days second order fermentation, and the unstripped gas that oven dry utilizes derives from the high-temperature gas in the incineration flue gas processing; Dry air tail gas through dryer carries out high-temperature sterilization to the picking excess again; Tail gas after the sterilization and unnecessary dry air tail gas are discharged to cyclone dust collectors through blower fan, sieve screenings and nitrogen again by the dust that obtains after the cyclone dust collectors dedusting with after drying the rubbish process ball mill that obtains. phosphorus. and the potassium raw material stirs and makes compoiste fertilizer.
Burning disposal is that the oversize that obtains through each screening machine is burned, the time that flue gas stops in incinerator was not less than 2 seconds, incinerator is connected with 4 air heat exchangers, and it is respectively the drying that solves incinerator, the combustion-supporting and problem that burns that 3 air heat exchangers are arranged; The 4th air heat exchanger be the dryer of high-temperature gas introducing ferment integrated treatment, and be connected with water-to-water heat exchanger, to the boiler heating of using for the bathroom; The slag that burning disposal obtains is through after the comprehensive equipment for removing ferric ion deironing, and is broken with the building waste that picking goes out, and sieves the back again and produces finished bricks for selling by brickmaking machine, and the flying dust in the screening carries out security landfill after solidifying through brickmaking machine.
It is that chilling removes acid tower and adopts the mode of spraying alkali lye that the flue tail gas after burning is carried out rapid cooling that incineration flue gas is handled, solve to produce the situation of " two dislike because of ", pass through cyclone dust collectors and sack cleaner dedusting again by the gas after the cooling, the flying dust that produces in dedusting is cured security landfill again through brickmaking machine.
Claims (5)
1. consumer waste comprehensively processing method is characterized in that: comprises that at least preliminary treatment, fermentation integrated treatment, burning disposal, incineration flue gas are handled, security landfill, obtains picking excess, oversize and screenings after the preliminary treatment, and
(A) to the integrated treatment of fermenting of pretreated screenings, the screenings drying of fermentation integrated treatment is made compoiste fertilizer, and the dry air tail gas that obtains after the drying is the high-temperature sterilization gas of picking excess after the preliminary treatment;
(B) burning disposal is that the oversize of oversize that preliminary treatment screening is obtained and fermentation integrated treatment is in the stepped incinerator at fire grate and burns, and the slag of burning disposal is to produce material or the flying dust security landfill of using in the building product after curing to producing; The high-temperature gas of incineration flue gas after the air heat exchanger heat exchange is the unstripped gas of baking step in the fermentation integrated treatment;
(C) flue gas of incineration flue gas after air heat exchanger, water-to-water heat exchanger heat exchange is by the cooling of chilling deacidification heat sink, again by the dust arrester dedusting; Flying dust security landfill after curing that incineration flue gas is handled;
The inlet temperature of the chilling deacidification heat sink that described incineration flue gas is handled is greater than 650 ℃, and outlet temperature is less than 250 ℃, and the time of incineration flue gas by chilling deacidification heat sink is 0.8～3 second.
2. consumer waste comprehensively processing method according to claim 1 is characterized in that: described preliminary treatment comprises adopt to hang tramp iron separator and the magnet cylinder screening machine screening rubbish to rubbish deironing, artificial hand selection and shake formula.
3. consumer waste comprehensively processing method according to claim 1 is characterized in that: the slag of described burning disposal gained is produced building product again after hanging tramp iron separator, artificial hand selection and the deironing of magnet cylinder.
4. consumer waste comprehensively processing method according to claim 1 is characterized in that: described fermentation integrated treatment comprises fermentation, homocline, oven dry, grinding, dedusting, screening, composting; Wherein: comprise at least once or once above fermentation, the time of fermentation was at 7～12 days for the first time, water content is outlet temperature 〉=850 ℃ of the dry air tail gas that obtains of 20～30% fermentation screenings drying, described high-temperature sterilization gas in sterilization after blower fan discharge after being discharged to the cyclone dust collectors dedusting.
5. consumer waste comprehensively processing method according to claim 4 is characterized in that: the fermentation of described fermentation integrated treatment comprises fermenting twice, and fermentation time is 20～30 days for the second time.
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| CN 200510021386 CN1730175B (en) | 2005-08-01 | 2005-08-01 | Domestic refuse comprehensive treatment method |
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| CN 200510021386 CN1730175B (en) | 2005-08-01 | 2005-08-01 | Domestic refuse comprehensive treatment method |
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| CN1730175A CN1730175A (en) | 2006-02-08 |
| CN1730175B true CN1730175B (en) | 2010-05-12 |
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| CN113102475A (en) * | 2021-04-09 | 2021-07-13 | 覃旭峰 | Disinfection method for household garbage treatment |
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