CN104399737A - Domestic garbage mechanical bioleaching treatment and comprehensive utilization system - Google Patents
Domestic garbage mechanical bioleaching treatment and comprehensive utilization system Download PDFInfo
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- CN104399737A CN104399737A CN201410658113.0A CN201410658113A CN104399737A CN 104399737 A CN104399737 A CN 104399737A CN 201410658113 A CN201410658113 A CN 201410658113A CN 104399737 A CN104399737 A CN 104399737A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a domestic garbage mechanical bioleaching treatment and comprehensive utilization system which comprises a pre-treatment unit, an aerobic bioleaching device, a digestion tank and an aerobic bioreactor, wherein a discharging port of the pre-treatment unit is communicated with a feeding port of the aerobic bioleaching device, a liquid outlet of the aerobic bioleaching device is communicated with a liquid inlet of the digestion tank, a liquid outlet of the digestion tank is communicated with a liquid inlet of the aerobic bioreactor, and an air inlet of the aerobic bioreactor is communicated with an air outlet of the aerobic bioleaching device through a circulating fan. The domestic garbage mechanical bioleaching treatment and comprehensive utilization system further comprises a leaching spray head and a leaching pump, wherein the leaching spray head is arranged in the aerobic bioleaching device and is communicated with the aerobic bioreactor through the leaching pump. The domestic garbage mechanical bioleaching treatment and comprehensive utilization system also comprises a dehydrator. With the adoption of the structure, the domestic garbage mechanical bioleaching treatment and comprehensive utilization system has the benefits that domestic garbage can be completely decomposed, all effective ingredients in the garbage are fully utilized, the comprehensive utilization of the domestic garbage is realized, and finally-discharged gas and liquid are not polluted, so that a better role in protecting the environment is played.
Description
Technical field
The present invention relates to field of domestic garbage treatment, be specifically related to house refuse mechanical biological leaching treatment and comprehensive utilization system.
Background technology
The process being considered as the solid waste of house refuse of the solid waste that domestic rubbish disposal refers to daily life or provides the activity of service to produce for daily life and law defined, comprises the Sources decreasing of house refuse, cleaning, categorised collection, storage, transport, process, disposal and related management activity.
The object of garbage disposal reduces Municipal Garbage Yield, makes the quality and quantity of rubbish be more suitable for subsequent treatment or meet the requirement of final disposal.Garbage disposal is followed minimizing, innoxious, resource, is economized on the use of funds, Economization on land and the criterion such as resident is satisfied, suits measures to local conditions, integrated treatment, step by step decrement.
Common domestic rubbish disposal mode has three kinds, is landfill, compost and burning respectively.Landfill disposal needs to take a large amount of soil, and the harmful components simultaneously in rubbish also can cause severe contamination to air, soil and water source, not only destroy ecological environment, also serious harm health; Compost treatment needs to sort rubbish, classify, and requires that the organic content of rubbish is higher, and compost treatment can not minimizing, still needs to take a large amount of soil; Although burn and can not take a large amount of soils, can cause the significant wastage of resource, and burning can produce a large amount of harmful exhausts, if directly discharge can cause serious atmosphere pollution, if purify waste gas, not only difficulty of governance is large, and costly.
At present, also the mode process house refuse adopting bioleaching is had, it mainly utilizes the oxidation of specified microorganisms or its metabolite, reduction, complexing, absorption or dissolution, some insoluble composition in solid phase (as heavy metal, sulphur and other metal) is carried out separation lixiviate, but only adopt and house refuse cannot be made in this way thoroughly to be decomposed, the active ingredient in house refuse is not fully used, cause the wasting of resources, also the unrealized comprehensive utilization to house refuse.
Summary of the invention
The object of the present invention is to provide one way of life rubbish machinery bioleaching treatment and comprehensive utilization system; by this system; house refuse complete decomposition can be made; each active ingredient in rubbish is fully utilized; realize the comprehensive utilization to house refuse; and the gas of final discharge and liquid all do not pollute, and play a very good protection to environment.
The present invention for achieving the above object, realizes by the following technical solutions:
House refuse mechanical biological leaching treatment and comprehensive utilization system, comprise pretreatment unit, aerobe leaching device, digester and aerobe reactor, the discharging opening of described pretreatment unit is communicated with the charging aperture of aerobe leaching device, the liquid outlet of aerobe leaching device is communicated with the inlet of digester, the liquid outlet of digester is communicated with the inlet of aerobe reactor, and the air inlet of aerobe reactor is communicated with by the gas outlet of circulating fan with aerobe leaching device;
Also comprise air blast, the air outlet of described air blast is communicated with aerobe leaching device;
Also comprise leaching shower nozzle and leaching pump, described leaching shower nozzle is arranged in aerobe leaching device, and leaching shower nozzle is communicated with aerobe reactor by leaching pump;
Also comprise dewaterer, the charging aperture of described dewaterer is communicated with the discharging opening of aerobe leaching device;
Also comprise grit water separator, the inlet of described grit water separator is communicated with the liquid outlet of aerobe leaching device, and the liquid outlet of grit water separator is communicated with the inlet of aerobe reactor;
Also comprise methane storage tank, the described air inlet of methane storage tank is communicated with the gas outlet of digester;
Also comprise waste gas absorber, the described air inlet of waste gas absorber is communicated with the gas outlet of aerobe reactor.
In this programme, pretreatment unit mainly realizes carrying out sorting to house refuse, to enable reaction below carry out smoothly, up hill and dale, after house refuse enters aerobe leaching device, start to carry out aerobic reaction, air blast is that aerobic reaction improves Oxygen Condition, and house refuse, after aerobic reaction, obtains reactant liquor and rubbish residue, the gas produced enters into aerobe reactor, rubbish residue is discharged from discharging opening, and enters dewaterer and dewater, and the residue after dehydration can be used as fuel; Reactant liquor is discharged from the liquid outlet of aerobe leaching device, and enter into grit water separator, inert substance (as sand setting etc.) in reactant liquor is separated, then reactant liquor enters into digester, anaerobic reaction is completed in digester, the methane that anaerobic reaction produces is sent in methane storage tank temporary, reacted solution enters in aerobe reactor and reacts further, the gas that reaction produces is sent in waste gas absorber and is realized purification filtering, and the gas after purification filtering can reach discharge standard; Solution in aerobe reactor is by leaching pump suction aerobe leaching device, and sprayed by leaching shower nozzle, the circular treatment of realization response liquid, the active ingredient in solution is made to be converted utilization as much as possible, harmful components are fully transformed Sum decomposition, make the gas of final discharge and liquid all meet discharge standard.
In this programme, whole domestic rubbish disposal is simple, efficiently, first by pretreatment unit, sorting is carried out to rubbish, by undesirable rubbish, (such as volume is excessive, containing not treatable material etc.) first remove, then send in aerobe leaching device, preliminary aerobic reaction is completed in aerobe leaching device, baroque garbage conversion will be formed and become gas, liquid, the form of solid exports respectively, gas (waste gas and partial air) enters in aerobe reactor, for aerobe reactor provides oxygen atmosphere, simultaneously, gas is reacted further in aerobe reactor, purification, discharge after purification finally by waste gas absorber, liquid is sent in digester, in digester, complete anaerobic reaction, produces methane gas, and obtain fundamental reaction liquid completely, then liquid is sent in aerobe reactor, the organic matter in liquid is reacted away further, the liquid finally obtained meets emission request, can directly discharge, solid is expelled in dewaterer and carries out processed, and the rubbish residue obtained can be used as fuel.By adopting said system, achieve the comprehensive reutilization to house refuse, meanwhile, the gas produced in recycling process and liquid can not to environmental danger.
Further, preferably, described pretreatment unit comprises refuse grinder, magnetic separator and rotary screen, the discharging opening of described refuse grinder is communicated with the charging aperture of magnetic separator, the discharging opening of magnetic separator is communicated with the charging aperture of rotary screen, and the discharging opening of rotary screen is communicated with the charging aperture of aerobe leaching device.Volume or larger-size garbage disposal are become volume or the less rubbish of size by refuse grinder, be convenient to late phase reaction process, then magnetic separator carries out filtering to the metal species material in rubbish, then volume or oversize rubbish sieve remove by rotary screen, only the rubbish meeting dimensional requirement is sent in aerobe leaching device and react, thus enable reaction thorough, refuse grinder can be returned by the rubbish that rotary screen screens out and continue broken.
Further, preferably, described aerobe leaching device is rotating disc type aerobe leaching device.
Further, preferably, the drive motors that described rotating disc type aerobe leaching device comprises cylindrical shell, is arranged on the multiple disk in cylindrical shell and is arranged on outside cylindrical shell, described disk is fixed on the inwall of cylindrical shell, disk is provided with some through holes that house refuse can be made to pass through, the rotating shaft of described drive motors is fixed with central shaft, central shaft penetrates from the top of cylindrical shell, and successively through each disk, described central shaft is fixed with and organizes scraper more, the top of described cylindrical shell is provided with charging aperture and gas outlet, and the bottom of cylindrical shell is provided with discharging opening and liquid outlet.
In this programme, drive motors drives central axis, enable the horizontal plane of the scraper on central shaft above disk moves in a circle, preferably, scraper can perpendicular to central shaft, after house refuse drops to disk, scraper is under the rotary action of central shaft, rubbish is scraped the through hole of disk, rubbish is fallen down from through hole, thus the dispersion achieving rubbish is fallen, number of openings on disk can be determined as required, be as the criterion so that rubbish even drop down can be realized, leaching shower nozzle can be arranged between adjacent two disks, because now rubbish is evenly dispersed, reactant liquor and rubbish uniform contact can be made by spray, make the reaction in aerobe leaching device more abundant, thoroughly, be conducive to rubbish to be decomposed better process, improve the recovery utilization rate of rubbish.
Further, preferably, be parallel to each other between each disk described, and the inwall of the excircle of disk and cylindrical shell is affixed.Under the effect of disk and cylinder inboard wall, rubbish can not fall from the surrounding of disk, can only be fallen by the through hole on disk, by arranging the distribution of circular hole, rubbish can be realized evenly, dispersedly fall, so that the reactant liquor that rubbish and leaching shower nozzle spray fully contacts, rubbish is made to react more thorough.
Further, preferably, the upper surface of described scraper is an inclined-plane, and scraper near one end of central shaft higher than the one end away from central shaft.When rubbish is fallen on disk, inevitably rubbish falls the situation on scraper, now, by improving the structure of scraper, even if rubbish is fallen on scraper, under the centrifugal action that scraper rotates, rubbish also can slide on disk along the inclined-plane of scraper, finally falls to next disk or cylinder body bottom from the through hole of disk, thus the situation that there will not be rubbish residual, make the rubbish reaction in aerobe reactor more abundant, thorough, improve the recovery utilization rate of rubbish.
Further, preferably, the bottom of described aerobe leaching device is provided with spiral propeller, and the output of spiral propeller is towards the discharging opening of aerobe leaching device.When rubbish residue is piled up bottom aerobe leaching device, spiral propeller can make rubbish residue discharge quickly, improves the discharging efficiency of aerobe leaching device.
Further, preferably, infundibulate is arranged in the bottom of described aerobe leaching device, and the liquid outlet of aerobe leaching device is arranged on the lowermost end of aerobe leaching device.After liquid outlet being arranged on the lowermost end of aerobe leaching device, the reactant liquor in aerobe leaching device can be enable to discharge comparatively up hill and dale, improve the recovery utilization rate of rubbish.
Further, preferably, also comprise intermediate pool and reverse osmosis treatment device, the inlet of described intermediate pool is communicated with the liquid outlet of aerobe reactor, and the inlet of reverse osmosis treatment device is communicated with the liquid outlet of intermediate pool.After aerobe reactor reacts completely, liquid enters intermediate pool, and the liquid in intermediate pool, by booster pump suction reverse osmosis treatment device, by removals such as the particulate in liquid, colloid substances, thus obtains comparatively pure water.Reverse osmosis treatment device is a kind of existing structure, and current sewage treatment area is used.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention is by the acting in conjunction of pretreatment unit, aerobe leaching device, digester and aerobe reactor, achieve the comprehensive reutilization to house refuse, the gas produced in recycling process and liquid can not to environmental danger, simultaneously, whole system is reasonable in design not only, and treatment effeciency is higher.
(2) the present invention is by being designed to disc type aerobe leaching device by aerobe leaching device, achieve the even drop down of rubbish, and then enable the reactant liquor of leaching sprinkler and rubbish uniform contact, make the reaction in aerobe leaching device more abundant, thorough, be conducive to rubbish more resolution process better, improve the recovery utilization rate of rubbish.
(3) the present invention is by arranging spiral propeller in the bottom of aerobe leaching device, and rubbish residue is discharged quickly from aerobe leaching device, improves the discharging efficiency of aerobe leaching device.
(4) the present invention is by increasing intermediate pool and reverse osmosis treatment device, after aerobe reactor reacts completely, liquid enters intermediate pool, liquid in intermediate pool is by booster pump suction reverse osmosis treatment device, by removals such as the particulate in liquid, colloid substances, obtain comparatively pure water, thus make the water of discharge can not cause harmful effect to environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention 1;
Fig. 2 is the overall structure schematic diagram of rotating disc type aerobe leaching device;
Fig. 3 is the internal structure schematic diagram of rotating disc type aerobe leaching device.
The name that in accompanying drawing, Reference numeral is corresponding is called: 1, refuse grinder, 2, magnetic separator, 3, rotary screen, 4, recovery bin, 5, aerobe leaching device, 6, leaching shower nozzle, 7, dewaterer, 8, air blast, 9, grit water separator, 10, digester, 11, methane storage tank, 12, circulating fan, 13, aerobe reactor, 14, leaching pump, 15, waste gas absorber, 16, biologic packing material, 17, intermediate pool, 18, booster pump, 19, reverse osmosis treatment device, 20, cylindrical shell, 21, disk, 22, charging aperture, 23, gas outlet, 24, discharging opening, 25, liquid outlet, 26, drive motors, 27, central shaft, 28, scraper, 29, through hole.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, house refuse mechanical biological leaching treatment and comprehensive utilization system described in the present embodiment, comprise pretreatment unit, aerobe leaching device 5, digester 10 and aerobe reactor 13, the discharging opening of pretreatment unit is communicated with the charging aperture of aerobe leaching device 5, the liquid outlet of aerobe leaching device 5 is communicated with the inlet of digester 10, the liquid outlet of digester 10 is communicated with the inlet of aerobe reactor 13, and the air inlet of aerobe reactor 13 is communicated with the gas outlet of aerobe leaching device 5 by circulating fan 12.
The present embodiment also comprises air blast 8, and the air outlet of air blast 8 is communicated with aerobe leaching device 5, and air blast 8 provides oxygen atmosphere for aerobic bioleaching device 5.
The present embodiment also comprises leaching shower nozzle 6 and leaching pump 14, leaching shower nozzle 6 is arranged in aerobe leaching device 5, leaching shower nozzle 6 is communicated with aerobe reactor 13 by leaching pump 14, reactant liquor in aerobe reactor 13 is extracted in aerobe leaching device 5 by leaching pump 14, and sprayed by leaching shower nozzle 6, reactant liquor is fully contacted with rubbish.
The present embodiment also comprises dewaterer 7, the charging aperture of dewaterer 7 is communicated with the discharging opening of aerobe leaching device 5, rubbish residue enters into dewaterer 7 after aerobe leaching device 5 is discharged, and dehydration is completed in dewaterer 7, obtain substantially not moisture or that water content is very low rubbish residue, this rubbish residue can be used as fuel.
The present embodiment also comprises grit water separator 9, the inlet of grit water separator 9 is communicated with the liquid outlet of aerobe leaching device 5, the liquid outlet of grit water separator 9 is communicated with the inlet of aerobe reactor 13, under the effect of grit water separator, the inert substances such as sand setting separated fall.
The present embodiment also comprises methane storage tank 11, and the air inlet of methane storage tank 11 is communicated with the gas outlet of digester 10, and digester 10 is admitted in methane storage tank 11 by the methane that anaerobic reaction produces and keeps in.
The present embodiment also comprises waste gas absorber 15, and the air inlet of waste gas absorber 15 is communicated with the gas outlet of aerobe reactor 13, and under the effect of waste gas absorber 15, the gas of discharge can not to environment.
Preferably, the pretreatment unit of the present embodiment comprises refuse grinder 1, magnetic separator 2 and rotary screen 3, the discharging opening of refuse grinder 1 is communicated with the charging aperture of magnetic separator 2, the discharging opening of magnetic separator 2 is communicated with the charging aperture of rotary screen 4, the discharging opening of rotary screen 4 is communicated with the charging aperture of aerobe leaching device 7, volume or larger-size garbage disposal are become volume or the less rubbish of size by refuse grinder 1, be convenient to late phase reaction process, then the metal species material in magnetic separator 2 pairs of rubbish carries out filtering, and collect in recovery bin 4, then volume or oversize rubbish sieve remove by rotary screen 3, only the rubbish meeting dimensional requirement is sent in aerobe leaching device 5 and react, thus enable the reaction in aerobe leaching device 5 thorough, refuse grinder 1 can be returned by the rubbish that rotary screen 3 screens out and continue fragmentation.
Preferably, the present embodiment also comprises intermediate pool 17 and reverse osmosis treatment device 19, the inlet of intermediate pool 17 is communicated with the liquid outlet of aerobe reactor 13, the inlet of reverse osmosis treatment device 19 is communicated with the liquid outlet of intermediate pool 17, after aerobe reactor 13 reacts completely, liquid enters intermediate pool 17, liquid in intermediate pool 17 is by booster pump 18 suction reverse osmosis treatment device 19, by removals such as the particulate in liquid, colloid substances, thus obtain comparatively pure water.
The operation principle of the present embodiment:
First, house refuse is fed in refuse grinder 1, volume or larger-size garbage disposal are become volume or the less rubbish of size, then the metal species material in magnetic separator 2 pairs of rubbish carries out filtering, and collect in recovery bin 4, then volume or oversize rubbish sieve remove by rotary screen 3, only the rubbish meeting dimensional requirement is sent in aerobe leaching device 5 and react, refuse grinder 1 can be returned by the rubbish that rotary screen 3 screens out and continue fragmentation, after house refuse enters aerobe leaching device 5, start to carry out aerobic reaction, air blast 8 is aerobic reaction raising Oxygen Condition, house refuse is after aerobic reaction, obtain reactant liquor and rubbish residue, the gas produced enters into aerobe reactor 13, rubbish residue is discharged from discharging opening, and enter in dewaterer 7 and dewater, residue after dehydration can be used as fuel, reactant liquor is discharged from the liquid outlet of aerobe leaching device 5, and enter into grit water separator 9, inert substance (as sand setting etc.) in reactant liquor is separated, then reactant liquor enters into digester 10, anaerobic reaction is completed in digester 10, the methane that anaerobic reaction produces is sent in methane storage tank 11 temporary, reacted solution enters anaerobic reaction in aerobe reactor 13, simultaneously, liquid in biologic packing material 16 pairs of aerobe reactors 13 carries out adsorption cleaning, finally be drained in intermediate pool 17, by booster pump 18 solution sent in reverse osmosis treatment device 19 again and carry out reverse-osmosis treated, the liquid of final discharge meets discharge standard, gas in aerobe reactor 13 is sent in waste gas absorber 15 and is realized purification filtering, and the gas after purification filtering can reach discharge standard, solution in aerobe reactor 13 is by leaching pump 14 suction aerobe leaching device 5, and sprayed by leaching shower nozzle 6, the circular treatment of realization response liquid, make the active ingredient in solution be converted utilization as much as possible, harmful components are fully transformed Sum decomposition.
Embodiment 2:
As shown in Figures 2 and 3, the present embodiment is on the basis of embodiment 1, the structure of aerobe leaching device 5 is limited, be specially: the aerobe leaching device 5 of the present embodiment is rotating disc type aerobe leaching device, its concrete structure comprises cylindrical shell 20, the drive motors 26 being arranged on the multiple disks 21 in cylindrical shell 20 and being arranged on outside cylindrical shell 20, disk 21 is fixed on the inwall of cylindrical shell 20, disk 21 is provided with some through holes 29 that house refuse can be made to pass through, the rotating shaft of drive motors 26 is fixed with central shaft 27, central shaft 27 penetrates from the top of cylindrical shell 20, and successively through each disk 21, central shaft 27 is fixed with many group scrapers 28, the top of cylindrical shell 20 is provided with charging aperture 22 and gas outlet 23, the bottom of cylindrical shell 20 is provided with discharging opening 24 and liquid outlet 25.
Drive motors 26 is with central shaft 27 to rotate, scraper 28 on central shaft 27 can the horizontal plane above disk 21 be moved in a circle, after house refuse drops to disk, scraper 28 is under the rotary action of central shaft 27, rubbish is scraped through hole 29 place of disk 21, rubbish is fallen down from through hole 29, thus the dispersion achieving rubbish is fallen, number of openings on disk 21 can be determined as required, be as the criterion so that rubbish even drop down can be realized, leaching shower nozzle 6 can be arranged between adjacent two disks 21, because now rubbish is evenly dispersed, reactant liquor and rubbish uniform contact can be made by spray, make the reaction in aerobe leaching device 5 more abundant, thoroughly, be conducive to rubbish more resolution process better, improve the recovery utilization rate of rubbish.
Embodiment 3:
The present embodiment is substantially the same manner as Example 2, different places is, be parallel to each other, and the inwall of the excircle of disk 21 and cylindrical shell 20 is affixed between each disk 21 of the present embodiment, the upper surface of scraper 28 is an inclined-plane, and scraper 28 near one end of central shaft 27 higher than the one end away from central shaft 27.When rubbish is fallen on disk 21, inevitably rubbish falls the situation on scraper 28, now, by improving the structure of scraper 28, even if rubbish is fallen on scraper 28, under the centrifugal action that scraper 28 rotates, rubbish also can slide on disk 21 along the inclined-plane of scraper 28, the final bottom falling to next disk 21 or cylindrical shell 20 from the through hole 29 of disk 21, thus the situation that there will not be rubbish residual, make the rubbish reaction in aerobe reactor 5 more abundant, thorough, improve the recovery utilization rate of rubbish.
Embodiment 4:
The present embodiment is on the basis of embodiment 1 or embodiment 2 or embodiment 3, in the bottom of aerobe leaching device 5, spiral propeller (not drawing in Fig. 1) is set, the output of spiral propeller is towards the discharging opening of aerobe leaching device 5, after the reaction in aerobic bioleaching device 5 completes, spiral propeller can make rubbish residue discharge from aerobe leaching device 5 quickly, improves the discharging efficiency of aerobe leaching device 5.
Preferably, can discharge comparatively up hill and dale for the ease of the reactant liquor in aerobe leaching device 5, improve the recovery utilization rate of rubbish, infundibulate is arranged in the bottom of the aerobe leaching device 5 of the present embodiment, and the liquid outlet of aerobe leaching device 5 is arranged on the lowermost end of aerobe leaching device 5.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (9)
1. house refuse mechanical biological leaching treatment and comprehensive utilization system, it is characterized in that: comprise pretreatment unit, aerobe leaching device (5), digester (10) and aerobe reactor (13), the discharging opening of described pretreatment unit is communicated with the charging aperture of aerobe leaching device (5), the liquid outlet of aerobe leaching device (5) is communicated with the inlet of digester (10), the liquid outlet of digester (10) is communicated with the inlet of aerobe reactor (13), the air inlet of aerobe reactor (13) is communicated with the gas outlet of aerobe leaching device (5) by circulating fan (12),
Also comprise air blast (8), the air outlet of described air blast (8) is communicated with aerobe leaching device (5);
Also comprise leaching shower nozzle (6) and leaching pump (14), described leaching shower nozzle (6) is arranged in aerobe leaching device (5), and leaching shower nozzle (6) is communicated with aerobe reactor (13) by leaching pump (14);
Also comprise dewaterer (7), the charging aperture of described dewaterer (7) is communicated with the discharging opening of aerobe leaching device (5);
Also comprise grit water separator (9), the inlet of described grit water separator (9) is communicated with the liquid outlet of aerobe leaching device (5), and the liquid outlet of grit water separator (9) is communicated with the inlet of aerobe reactor (13);
Also comprise methane storage tank (11), the air inlet of described methane storage tank (11) is communicated with the gas outlet of digester (10);
Also comprise waste gas absorber (15), the air inlet of described waste gas absorber (15) is communicated with the gas outlet of aerobe reactor (13).
2. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 1, it is characterized in that: described pretreatment unit comprises refuse grinder (1), magnetic separator (2) and rotary screen (3), the discharging opening of described refuse grinder (1) is communicated with the charging aperture of magnetic separator (2), the discharging opening of magnetic separator (2) is communicated with the charging aperture of rotary screen (4), and the discharging opening of rotary screen (4) is communicated with the charging aperture of aerobe leaching device (7).
3. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 1, is characterized in that: described aerobe leaching device (5) is rotating disc type aerobe leaching device.
4. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 3, it is characterized in that: described rotating disc type aerobe leaching device comprises cylindrical shell (20), be arranged on the multiple disks (21) in cylindrical shell (20) and be arranged on cylindrical shell (20) drive motors outward (26), described disk (21) is fixed on the inwall of cylindrical shell (20), disk (21) is provided with some through holes (29) that house refuse can be made to pass through, the rotating shaft of described drive motors (26) is fixed with central shaft (27), central shaft (27) penetrates from the top of cylindrical shell (20), and successively through each disk (21), described central shaft (27) is fixed with and organizes scraper (28) more, the top of described cylindrical shell (20) is provided with charging aperture (22) and gas outlet (23), the bottom of cylindrical shell (20) is provided with discharging opening (24) and liquid outlet (25).
5. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 4, is characterized in that: be parallel to each other between described each disk (21), and the inwall of the excircle of disk (21) and cylindrical shell (20) is affixed.
6. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 4, it is characterized in that: the upper surface of described scraper (28) is an inclined-plane, and one end of the close central shaft (27) of scraper (28) is higher than the one end away from central shaft (27).
7. the house refuse mechanical biological leaching treatment and comprehensive utilization system according to any one of claim 1 ~ 6, it is characterized in that: the bottom of described aerobe leaching device (5) is provided with spiral propeller, the output of spiral propeller is towards the discharging opening of aerobe leaching device (5).
8. the house refuse mechanical biological leaching treatment and comprehensive utilization system according to any one of claim 1 ~ 6, it is characterized in that: infundibulate is arranged in the bottom of described aerobe leaching device (5), the liquid outlet of aerobe leaching device (5) is arranged on the lowermost end of aerobe leaching device (5).
9. house refuse mechanical biological leaching treatment and comprehensive utilization system according to claim 1, it is characterized in that: also comprise intermediate pool (17) and reverse osmosis treatment device (19), the inlet of described intermediate pool (17) is communicated with the liquid outlet of aerobe reactor (13), and the inlet of reverse osmosis treatment device (19) is communicated with the liquid outlet of intermediate pool (17).
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| KR20140054732A (en) * | 2012-10-29 | 2014-05-09 | 김숙희 | Method and arrangement for manufacturing functional feed and liquid fertilizer from food waste by using saccharization-decomposition processing apparatus |
| CN102925241A (en) * | 2012-11-27 | 2013-02-13 | 中国环境科学研究院 | Method and device for preparing household garbage derived fuel |
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