CN104070051B - Domestic garbage resource cleans method for separating - Google Patents

Domestic garbage resource cleans method for separating Download PDF

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Publication number
CN104070051B
CN104070051B CN201410279498.XA CN201410279498A CN104070051B CN 104070051 B CN104070051 B CN 104070051B CN 201410279498 A CN201410279498 A CN 201410279498A CN 104070051 B CN104070051 B CN 104070051B
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China
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rubbish
water
separating
paper pulp
house refuse
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CN201410279498.XA
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Chinese (zh)
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CN104070051A (en
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任宪君
张秋艳
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临沂清宇环境资源工程设备有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/20Waste processing or separation

Abstract

The invention discloses one way of life garbage as resource and clean method for separating, broken bag after disinfecting, deodorizing; To tear up after 1 ~ 25cm disinfecting, deodorizing again; House refuse after process carries out fragmentation, and extract broken rear rubbish, the waste liquid extruded enters anaerobic fermentation system, the rubbish after extracting, through the rubbish sieve sorting of 2 ~ 15mm; Screenings after sorting falls into the water, and through 50 ~ 100 object hole sizers, the paper pulp of gained is wrung out through dehydration, obtains paper pulp crude product, the weight after separating pulp, after clearing out silt, enters after production of construction materials line sub-elects non-ferrous metal, makes building materials; Oversize enters flotation water tank, is therefrom separated by material lighter for the proportions such as plastics, and flowing automatically to aperture together with water is, after 1 ~ 5mm sieves drying dehydration, be transported to plastics fine-processing production line.This method realizes effective separation of house refuse, and final all utilization is processed as product, realizes zero burning, zero landfill, zero-emission.

Description

Domestic garbage resource cleans method for separating
Technical field
The invention belongs to domestic garbage resource field, relate to sorting consumer waste, particularly relate to one way of life garbage as resource and clean method for separating.
Background technology
Current China domestic waste has had a strong impact on the normal life of people, and the domestic city of about 1/3 suffers " garbage-surrounded city ", and the process of domestic waste is a global problem.Fundamentally solve the outlet of this difficult problem of urban garbage disposal, be just that will carry out classification to rubbish reclaims, rubbish becomes resource, recycles.If do not solve city garbage specification problem, the sustainable development in city just cannot be realized.But process unfiled placement due to China's domestic waste always, mainly the mode of fortune is received in mixing, and component of refuse is complicated, reaches kind more than 1000; Meanwhile, the changing food waste in resident's changing food waste, part restaurant hotel is also all mixed in house refuse to concentrate receives fortune, cause rubbish water content more than 50%, and the house refuse of changing food waste to other wherein causes serious classification difficulty.Rubbish dehydrates by main employing in advance both at home and abroad at present, then coordinates the means of selection by winnowing to carry out the utility such as partly plastic and metal being carried out simple crude separation, as processing raw material of low value-added product.Final purpose is only by waste reduction, in the house refuse of these substantial amounts, the overwhelming majority, based on landfill, is aided with other methods of disposal such as burning, compost, from the angle of resource circulation utilization, do not meet Sustainable Development Trend with burying method process house refuse.
Because house refuse has complicated components, moisture content high, make the metal in rubbish, plastics, glass, the materials such as rotten thing can be piled also do not reach good separating effect, thus can not indiscriminately imitate the sorting technology of other field.The sorting technology of some external in addition house refuses, due to the characteristic of China's house refuse can not be adapted to, the DeGrain of therefore sorting.Therefore the sorting consumer waste technology of a kind of applicable China of current urgent need house refuse characteristic.
Summary of the invention
Object of the present invention is exactly to solve the problem, there is provided one way of life garbage as resource to clean method for separating, this method utilizes the feature of component of refuse self, each component is effectively separated, each raw material carries out resource recycling after being separated, and realizes real resources circulation.
To achieve these goals, the present invention adopts following technical scheme:
One way of life garbage as resource cleans method for separating, comprises the following steps:
(1) house refuse carries out broken bag process after disinfecting, deodorizing; Object: first by house refuse disinfecting, deodorizing, effectively prevents the secondary pollution of the smells such as rubbish stench; Garbage utilization conveyer belt is transported in shredder, is added with strong magnetic device at conveyer belt top, magnetisable material wherein can be separated in advance.
(2) by step 1) process after house refuse tear up 1 ~ 25cm; Object: be convenient to follow-up separation; Shredder used in the present invention is twin shaft or four axle toothed disc type shredders, different material composition in rubbish fully can be torn up.
(3) by step 2) in the rubbish torn up again to carry out disinfection deodorizing; Object prevents new foul smell.
(4) by through step 3) house refuse after process is placed in roller crusher, be mixed into water or mass fraction is the alkali lye of 1% ~ 3%, described alkali lye is ammoniacal liquor, potassium hydroxide or sodium hydroxide solution, make rubbish water content be 150 ~ 200%, break process makes the material of the labile organic compound in rubbish, fiber-like broken further and is separated with other adhesive matrix;
(5) broken rear rubbish is extracted; Screw rod squeezing machine is adopted to extract process; The waste liquid extruded, because of containing a large amount of labile organic compounds, directly enters anaerobic fermentation system, and fermentation produces biogas, and enter cogeneration of heat and power, natural pond liquid is for the production of fertilizer;
(6) extracting the rubbish after dehydration, is the rubbish sieve sorting of 2 ~ 15mm through aperture; According to particle size, rubbish is divided into two large classes, oversize is mainly plastics, textile, bulk masonry tile fragment, metal, bamboo wood etc., and screenings is mainly silt and paper pulp.
Described rubbish sieve bottom feed end vertically 1/3 ~ 2/3 position be immersed in the water, immersion depth can not have charging baffle plate to be as the criterion with water, prevented material from flowing out in water.Sieve top needs to spray with water under high pressure, is separated with other raw materials such as rubber and plastic classes to make the materials such as the organic matter of paper pulp, silt and dissolving.
(7) described in step 6, screenings falls into the water, floating paper pulp is through 50 ~ 100 object hole sizers, paper pulp is separated further with tiny silt, the paper pulp of gained is wrung out (preferably: paper pulp enters singe screw press master and extracts) through dehydration, the water adverse current extracting acquisition herein uses in roll crusher and sorting water tank, obtain paper pulp crude product, as the raw material of paper pulp production line, weight after separating pulp, after clearing out silt with carrier bar mucking machine, enter after production of construction materials line sub-elects non-ferrous metal, make building materials;
(8) oversize described in step 6 enters float tank, winnow with water, the impurity on the raw material surfaces such as further separation cleaning plastics, the weights such as a small amount of sandstone adulterated in plastics are separated removing, after rinsing, from the sieve dehydration flowing into 1 ~ 5mm, in the float tank entrance in the flotation water tank at the screenings place of the water deviate from after being pumped into step 6 or this step, constantly supplement fresh water simultaneously, realize the adverse current of water.Bottom precipitation weight, after carrier bar mucking machine clears out, with the silt mixing manufacture building materials in step 7.After dehydration, all substances are entered equipment such as throwing choosing, selection by winnowing sorting, flotation, utilize sole mass difference different, be separated by the foreign material such as plastics, textile, bamboo wood, the different material that separation obtains enters respective production line respectively and carries out intensive processing.
Beneficial effect of the present invention:
1, existing refuse classification technology, all in line with the object of decrement.And present system technology is from source, analyze the feature of different component in rubbish, be separated one by one according to respective otherness, realize rubbish full constituent to be effectively separated, to be all processed as product, effectively solve house refuse recycling cost high, utilization rate is low, not easily separated, the problem of waste resource.
2, at present large Alternative is main mode classification with selection by winnowing.And up to the water content of 50% in China's house refuse, air separation technique is encountered be difficult to the bottleneck broken through.And systems technology of the present invention, utilize the feature that rubbish water content is high, utilize " wet separation ", (mainly refer to cylinder crushing, step 6,7 and 8, in whole process, a large amount of water or alkali lye be added, keep rubbish in water or solution, complete cleaning and be separated), realize refuse classification.
3, technology of the present invention, the solution such as the water of " wet separation " and soda acid, by circulated in countercurrent, using water wisely, in the waste water of system, content of biodegradable organic reaches higher degree, is beneficial to follow-up anaerobic fermentation, finally benefits production and the fertilizer efficiency of fertilizer.
4, present system technology in line with cleaning, the principle of comprehensive utilization of resources, rubbish is turned waste into wealth, becomes the resource that the mankind can be recycled.Realize rubbish comprehensive utilization, non-secondary pollution, without burn, without landfill, really realize resource, innoxious efficiency utilization, and cost is low, step is simple.
5, technological system of the present invention can by rubbish respectively and make full use of, fiber, plastics, textile, building materials, metal, biogas, the large series products raw material of fertilizer 7 can be produced in set of system, the material purity that sorting obtains is high, be beneficial to follow-up recycling, fully reclaim the available resources in rubbish.
6, technical solution of the present invention, the airtight production of whole system, without the need to manually directly contacting rubbish, discharging after the centralized collection process such as the gas of the generation in assorting room, realizing economic benefit, social benefit and environmental benefit conjugally developed.
7, technical solution of the present invention, first the organic matter rubbish such as the meal kitchen in rubbish are separated in separation system, labile organic compound composition in the mode enriched liquid of adverse current sorting, then anaerobic fermentation system is entered, the fertilizer produced is full water-soluble, fertilizer efficiency is high, is beneficial to the soil environment improved and worsen.
Accompanying drawing explanation
Fig. 1 is sorting process flow chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, after rubbish enters factory, first rubbish is discharged into stock ground, and then spray disinfectant deodorant carries out rubbish deodorizing process.After rubbish is carried out broken bag by bag-breaking machine, rubbish is disperseed.Rubbish, after broken bag pretreatment, enters twin shaft or four axle toothed disc type shredders, rubbish is fully torn up to 1 ~ 25cm, is convenient to later separation.The further spray disinfectant deodorant of the rubbish torn up, prevents new foul smell.Then grabbed bucket by the material loading of roll crusher, automatic charging is to roll crusher.Rubbish is in roll crusher, mixing water or mass fraction be 1% ~ 3% ammoniacal liquor or mass fraction be the potassium hydroxide of 1% ~ 3%, rubbish water content is made to be 150 ~ 200%, in the process that rubbish moves ahead in cylinder, the breaker in equipment makes the material of the labile organic compound in rubbish, fiber-like broken further and is separated with other adhesive matrix.Rubbish, after fragmentation, enters and extracts dehydration equipment, is extruded the large quantity of moisture absorbed in rubbish, the waste liquid of high concentration, because of containing a large amount of labile organic compounds, directly enters anaerobic fermentation system, and fermentation produces biogas, for cogeneration of heat and power, natural pond liquid is for the production of fertilizer.Through extracting the rubbish of dehydration, break up evenly, sending into aperture is in 2 ~ 15mm rubbish sieve sub-sieve, and according to particle size, rubbish is divided into two large classes, screenings is mainly silt and paper pulp.Oversize is mainly plastics, textile, bulk masonry tile fragment, metal, bamboo wood etc.; Screenings falls into the water, under certain stirring action, paper pulp will float to top, by drawing mechanism, paper pulp and water are transferred in 50 ~ 100 object hole sizers, paper pulp is separated further with tiny silt, and by dewatering of pulp, paper pulp after dehydration enters singe screw press master and extracts, and obtains paper pulp crude product, as the raw material of paper pulp production line.Weight after separating pulp, clears out silt through chain-plate-type slag remover, then enters after production of construction materials line sub-elects non-ferrous metal, makes building materials.Oversize enters the screening that next aperture is 3 ~ 15mm aperture, and rinses with water, other impurity on the raw material surfaces such as further separation cleaning plastics.Sieve through 1 ~ 5mm aperture cleans and after dewatering, all raw materials enter weight thing screening installation, utilizes sole mass difference different, is separated by the foreign material such as plastics, textile, bamboo wood and other metal brick stones.The different material being separated acquisition enters respective production line respectively and carries out intensive processing.
The specific embodiment of the present invention is described although above-mentioned in conjunction with the embodiments; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (4)

1. one way of life garbage as resource cleans method for separating, it is characterized in that, comprises the following steps:
(1) house refuse carries out broken bag process after disinfecting, deodorizing;
(2) by step 1) in house refuse removing metal species material, then tear up 1 ~ 25cm;
(3) by step 2) in the rubbish that tears up again to carry out disinfection deodorizing;
(4) by through step 3) house refuse after process is placed in disintegrating machine, is mixed into water or mass fraction is the alkali lye of 1% ~ 3%, and described alkali lye is ammoniacal liquor, potassium hydroxide or sodium hydroxide solution, makes rubbish water content be 150 ~ 200%;
(5) extract broken rear rubbish, the waste liquid extruded directly enters anaerobic fermentation system, and fermentation produces biogas and natural pond liquid;
(6) extracting the rubbish after dehydration, is the rubbish sieve sorting of 2 ~ 15mm through aperture; Screenings falls into the water, and floating paper pulp is through 50 ~ 100 object hole sizers, and the dewatering of pulp of gained is extracted, and the water adverse current extracting acquisition uses in the water tank of disintegrating machine screenings place, obtains paper pulp crude product; Weight after separating pulp, after clearing out silt, enters after production of construction materials line sub-elects non-ferrous metal, makes building materials; Oversize enters float tank, after winnowing, from the sieve dehydration flowing into 1 ~ 5mm, in the flotation water tank of the water deviate from through being pumped into screenings place, after bottom precipitation weight clears out, makes building materials with water;
(7) after dehydration, all substances are carried out throwing choosing, selection by winnowing, flotation, rubber and plastic, textile can be obtained.
2. method for separating as claimed in claim 1, is characterized in that, described step 2) tear up with twin shaft or four axle toothed disc type shredders.
3. method for separating as claimed in claim 1, is characterized in that, described step 6) paper pulp extracts through singe screw press master.
4. method for separating as claimed in claim 1, it is characterized in that, described step 6) aperture be the sorting sieve of 2 ~ 15mm bottom feed end vertically 1/3 ~ 2/3 position be immersed in the water, immersion depth did not have charging baffle plate to be as the criterion with materials inside, and sieve top water under high pressure sprays.
CN201410279498.XA 2014-06-20 2014-06-20 Domestic garbage resource cleans method for separating CN104070051B (en)

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CN105666735B (en) * 2015-07-17 2018-06-22 蓝德环保科技集团股份有限公司 Food waste separating plastic cleaning system and method
CN105855261B (en) * 2016-03-29 2018-11-20 广州拯绿环保科技有限公司 A kind of method that house refuse organic matter water decomposition warehouse crosses drainage recycling
CN106513415B (en) * 2016-10-31 2018-12-11 南开大学 A kind of preposition zymotechnique of composting sorting and application
GB2561018A (en) * 2017-03-27 2018-10-03 Anaergia Inc Process for recovering organics from material recovery facility fines
CN109926431A (en) * 2018-11-20 2019-06-25 环创(厦门)科技股份有限公司 Bulky Waste treatment process

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CN104056842A (en) * 2013-06-20 2014-09-24 金洛俊 Household Garbage Disposal System

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CN203128495U (en) * 2012-12-26 2013-08-14 山东汉菱电气有限公司 Organic material comprehensive processing system
CN104056842A (en) * 2013-06-20 2014-09-24 金洛俊 Household Garbage Disposal System

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