CN104059712A - Recycling method for combustible solid waste - Google Patents
Recycling method for combustible solid waste Download PDFInfo
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- CN104059712A CN104059712A CN201410304383.1A CN201410304383A CN104059712A CN 104059712 A CN104059712 A CN 104059712A CN 201410304383 A CN201410304383 A CN 201410304383A CN 104059712 A CN104059712 A CN 104059712A
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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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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a recycling method for combustible solid waste. The recycling method for the combustible solid waste comprises the following steps of predisposing household refuse to obtain first finely-ground materials, predisposing the combustible solid waste to obtain second finely-ground materials, mixing the first finely-ground materials, the second finely-ground materials and adjuvants to obtain a mixture, and making the mixture into refuse-derived fuel in a preset shape through a forming machine. The recycling method for the combustible solid waste solves the problems that when the household refuse and the combustible solid waste are disposed, cost is high, incineration equipment investment is large, and environmental pollution is serious.
Description
Technical field
The present invention relates to refuse treatment field, relate in particular to a kind of recycling treatment process of flammable solid waste.
Background technology
At present, along with world economy high speed development, domestic refuse and other flammable solid waste (such as flammable Hazardous wastes, sludge of sewage treatment plant, trade waste etc.) have become the obstacle that human society stablize Sustainable development, and it is that pendulum is in universe's difficult problem in front that these wastes are disposed in how innoxious, resource utilization, minimizing.
Take in the middle of the solid waste that domestic refuse is representative, the overwhelming majority has combustibility, burning and reclaiming heat is the minimizing that people are generally acknowledged, the best approach of disposal of resources, people have adopted a kind of method of novel processing domestic refuse at present, be about to domestic refuse after series of preprocessing, make a kind of new forms of energy product of sustainable regeneration--garbage derivatived fuel (RDF), the garbage derivatived fuel calorific value of the type that processes from strand is high and stable, homogeneous grain diameter, intensity is high, can preserve for a long time, be easy to packing and transportation, pollute little, to become one of following reproducible main fuel kind.
The method of at present processing the flammable solid wastes such as domestic refuse in burning mode is waste to be dropped into after simple process to incinerator to burn mostly, and heat energy is for generating; Or by waste through pre-treatment, fermentation is made biogas and is generated electricity; These modes except processing cost relatively high, burning facility has high input, waste transportation and storage (particularly danger wastes) trouble, flying dust and tailings still need to dispose outside (Hazardous wastes also needs special disposal), and be mainly has violent in toxicity Dioxins to produce in Refuse Incineration Process.Having is exactly by waste landfill again, not only can not recycle, and environmental pollution is very serious.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of recycling treatment process of flammable solid waste, to solve when processing the flammable solid wastes such as domestic refuse, the problem that cost is high, burning facility has high input and environmental pollution is serious.
The present invention proposes a kind of recycling treatment process of flammable solid waste, described flammable solid waste comprises domestic refuse and other flammable solid waste, described other flammable solid waste comprises at least one in the industrial residue of resource recovery process, flammable trade waste and Hazardous wastes, and described recycling treatment process comprises the following steps:
Step 1: described domestic refuse is carried out to pre-treatment, obtain the first fine crushing material;
Step 2: described other flammable solid waste is carried out to pre-treatment, obtain the second fine crushing material;
Step 3: described the first fine crushing material, the second fine crushing material and auxiliary are mixed with certain proportion, obtain compound;
Step 4: the garbage derivatived fuel of described compound being made on forming machine to predetermined shape.
Further, in step 1, described domestic refuse is carried out to pretreated step and comprises successively:
By domestic refuse extrusion dehydration;
Domestic refuse after dehydration is carried out to coarse breaking;
Domestic refuse after coarse breaking is carried out to selection by winnowing one time, obtain light thing and weight;
Light thing is carried out to fine crushing;
Weight is carried out to magnetic separation, the weight after magnetic separation is carried out to fine crushing;
Weight after fine crushing is carried out to secondary selection by winnowing, to the first magnetic separation of weight after secondary selection by winnowing, after carry out vibration winnowing; Secondary selection by winnowing and vibration winnowing light thing out mixes with a light thing of selection by winnowing after above-mentioned fine crushing, obtains the first fine crushing material;
The first fine crushing material is carried out to the aerobic fermentation of the scheduled time.
Further, described domestic refuse being carried out to pretreated step also comprises: the first fine crushing material after aerobic fermentation is carried out to biological deodorizing processing.
Further, the first fine crushing material is carried out after aerobic fermentation, the water content of described the first fine crushing material is down to below 30%.
Further, described domestic refuse being carried out to pretreated step also comprises: using described vibration winnowing weight as construction material or carry out landfill disposal.
Further, in step 2, described other flammable solid waste is carried out to pretreated step and comprises:
First, described other flammable solid waste is carried out to sorting, reject metal and inorganics;
Then, other flammable solid waste after sorting is carried out to fine crushing, obtain described the second fine crushing material.
Further, in step 3, according to mass percent, described the first fine crushing material accounts for 65%-85%, and the second fine crushing material accounts for 15%-35%, and auxiliary accounts for the 2%-15% of the first fine crushing material and the second fine crushing material summation.
Further, described auxiliary comprises at least one in ignition dope, binding agent and pollutent inhibitor.
Further, described pollutent inhibitor comprises CaO powder.
The recycling treatment process of a kind of flammable solid waste that the present invention proposes, domestic refuse and other flammable solid waste are carried out to comprehensive treating process, not only make waste obtain cycling and reutilization, and utilize domestic refuse to water down the heavy metal content in other flammable solid waste, utilize not chloride (or chloride low), other flammable solid waste that moisture content is low to water down chlorine and the moisture content in domestic refuse, reduced processing cost, but also make the garbage derivatived fuel component made even, stable performance.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the recycling treatment process of flammable solid waste in the specific embodiment of the invention.
Embodiment
As shown in Figure 1, the invention provides a kind of recycling treatment process of flammable solid waste, flammable solid waste in the present invention refers to domestic refuse and other flammable solid waste except domestic refuse, this other flammable solid waste comprises the industrial residue of resource recovery process, at least one in flammable trade waste and Hazardous wastes, wherein, the industrial residue of resource recovery process comprises useless automobile dismounting residue, the foam residues that waste electrical equipment is disassembled, the nonmetal residue that waste electric products is disassembled, waste or used plastics, the mixing residue that the cyclic regeneration processes such as rubber produce, land thing etc., flammable trade waste comprises paint residues, toner, oily sludge and the machine of wiping cloth etc., Hazardous wastes comprises clinical waste, pharmaceutical chemicals waste and heavy metal waste etc., the object of the invention is to domestic refuse and other flammable solid waste to carry out comprehensive treating process, not only make waste obtain cycling and reutilization, and utilize domestic refuse to water down the heavy metal content in other flammable solid waste, utilize not chloride (or chloride low), other flammable solid waste that moisture content is low to water down chlorine and the moisture content in domestic refuse, reduced processing cost, but also make the garbage derivatived fuel component made even, stable performance.
Embodiment 1:
S10: by domestic refuse extrusion dehydration: domestic refuse is pushed with extrusion equipment, its moisture is down to 40% left and right, the percolate squeezing out is processed rear discharge up to standard in addition;
S11: extruding is removed to the domestic refuse coarse breaking after percolate, for example, be broken into the fragment that particle diameter is less than 120mm;
S12: the domestic refuse after coarse breaking is carried out to selection by winnowing one time, domestic refuse is divided into light thing and weight two portions;
S13: by the direct fine crushing of light thing to 20mm;
S14: selection by winnowing weight after metallic iron is rejected in magnetic separation fine crushing below 20mm;
S15: selection by winnowing weight in small, broken bits is carried out to secondary selection by winnowing, and secondary selection by winnowing weight carries out vibration winnowing again after magnetic separation, and the weight of vibration winnowing is inorganics (inert material);
S16: the light thing after the light thing of vibration winnowing, the light thing of secondary selection by winnowing and selection by winnowing and fine crushing mixes will obtain the first fine crushing material;
S17: fine crushing material is carried out to the micro-secondary aerobic fermentation under 10-15 days enclosed environments, material moisture is down to below 30%;
S18: the foul smell that carries out pretreated workshop and fermentation field is carried out to biological deodorizing;
S19: the inorganics (sandstone, cement, glass, pottery etc.) that sorting in step S15 is rejected is made landfill disposal or as construction material;
S20: first abandoned car is disassembled to residue (ASR) and carry out sorting, reject metal and inorganics; Then the abandoned car after sorting is disassembled to residue (ASR) and carried out fine crushing below 20mm, obtain the second fine crushing material;
S30: component is mixed, by the first fine crushing material 70% (mass percent) after fermentation, sorting, the abandoned car after in small, broken bits are disassembled residue (ASR) 25%, and CaO powder and potassium permanganate 5% mixes;
S40: by the material compression packing, the briquetting that mix, or make RDF product with RDF forming machine.
Embodiment 2:
S10: by domestic refuse extrusion dehydration: domestic refuse is pushed with extrusion equipment, its moisture is down to 40% left and right, the percolate squeezing out is processed rear discharge up to standard in addition;
S11: extruding is removed to the domestic refuse coarse breaking after percolate, for example, be broken into the fragment that particle diameter is less than 120mm;
S12: the domestic refuse after coarse breaking is carried out to selection by winnowing one time, domestic refuse is divided into light thing and weight two portions;
S13: by the direct fine crushing of light thing to 20mm;
S14: selection by winnowing weight after metallic iron is rejected in magnetic separation fine crushing below 20mm;
S15: selection by winnowing weight in small, broken bits is carried out to secondary selection by winnowing, and secondary selection by winnowing weight carries out vibration winnowing again after magnetic separation, and the weight of vibration winnowing is inorganics (inert material);
S16: the light thing after the light thing of vibration winnowing, the light thing of secondary selection by winnowing and selection by winnowing and fine crushing mixes will obtain the first fine crushing material;
S17: fine crushing material is carried out to the micro-secondary aerobic fermentation under 10-15 days enclosed environments, material moisture is down to below 30%;
S18: the foul smell that carries out pretreated workshop and fermentation field is carried out to biological deodorizing;
S19: the inorganics (sandstone, cement, glass, pottery etc.) that sorting in step S15 is rejected is made landfill disposal or as construction material;
S20: the non-metal powder that wiring board is reclaimed carries out sorting, rejects metal, obtains the second fine crushing material;
S30: component is mixed, by the first fine crushing material 80% (mass percent) after fermentation, the non-metal powder 17% that wiring board reclaims, CaO powder and potassium permanganate 3% mixes;
S40: by the material compression packing, the briquetting that mix, or make RDF product with RDF forming machine.
Embodiment 3
S10: by domestic refuse extrusion dehydration: domestic refuse is pushed with extrusion equipment, its moisture is down to 40% left and right, the percolate squeezing out is processed rear discharge up to standard in addition;
S11: extruding is removed to the domestic refuse coarse breaking after percolate, for example, be broken into the fragment that particle diameter is less than 120mm;
S12: the domestic refuse after coarse breaking is carried out to selection by winnowing one time, domestic refuse is divided into light thing and weight two portions;
S13: by the direct fine crushing of light thing to 20mm;
S14: selection by winnowing weight after metallic iron is rejected in magnetic separation fine crushing below 20mm;
S15: selection by winnowing weight in small, broken bits is carried out to secondary selection by winnowing, and secondary selection by winnowing weight carries out vibration winnowing again after magnetic separation, and the weight of vibration winnowing is inorganics (inert material);
S16: the light thing after the light thing of vibration winnowing, the light thing of secondary selection by winnowing and selection by winnowing and fine crushing mixes will obtain the first fine crushing material;
S17: fine crushing material is carried out to the micro-secondary aerobic fermentation under 10-15 days enclosed environments, material moisture is down to below 30%;
S18: the foul smell that carries out pretreated workshop and fermentation field is carried out to biological deodorizing;
S19: the inorganics (sandstone, cement, glass, pottery etc.) that sorting in step S15 is rejected is made landfill disposal or as construction material;
S20: the polyurethane foam powder that the assorted plastics of mixing that wiring board is reclaimed and refrigerator are disassembled recovery carries out sorting, rejects metal, obtains the second fine crushing material;
S30: component is mixed, by the first fine crushing material 80% (mass percent) after fermentation, the refrigerator of the assorted plastics 10%, 6% of mixing after sorting, fragmentation is disassembled the polyurethane foam powder of recovery, and CaO powder and potassium permanganate 4% mixes;
S40: by the material compression packing, the briquetting that mix, or make RDF product with RDF forming machine.
It should be noted that, when the first fine crushing material, the second fine crushing material and auxiliary are mixed, three's blending ratio can be determined according to practical situation, for example can determine according to the characteristic of the second fine crushing material (content of heavy metal in other flammable solid waste), also can determine according to the characteristic of the first fine crushing material (water content of domestic refuse or chlorinity), total prerequisite is As soon as possible Promising Policy environmental requirement, accomplish that the garbage derivatived fuel burning after stain of producing is few, and heat energy is high.
Auxiliary in the present invention is except calcium oxide, also just like potassium permanganate class ignition dope, polyvinyl alcohol binding agent etc.Calcium oxide changes into calcium chloride by chlorion, is deposited in incineration residue, thereby reduces nuisances such as removing in tail gas Dioxins even completely, the effect of potassium permanganate is combustion-supporting, utilize potassium permanganate preheating to decompose the performance aid burning of emitting oxygen, impel RDF burning completely, the interpolation of potassium permanganate can be determined according to the final form of RDF, if RDF is compressed format in bulk, can add less or not add, if RDF is hot pressing bulk or the higher form of granular isodensity, can add a small amount of, for example be less than or equal to 0.5%, for relying on pressure, heating waits material that can not moulding, need to add and not affect RDF combustionproperty as polyvinyl alcohol, do not increase pollution, the auxiliary RDF moulding of binding agent that price is lower.The using method of binding agent is specially: during polyvinyl alcohol (PVA) is dissolved in to boiling water under agitation condition, make solution, according to the ratio of weight of material 5%-15%, add material to stir, pack the material stirring into mould that certain size requires, add suitable pressure forming, treat that moisture evaporation obtains solid RDF particle
The recycling treatment process of flammable solid waste of the present invention and current household garbage preprocessing process, compare with industrial solid castoff disposal technology, and the present invention has following beneficial effect:
1, simple to the pretreated process of domestic refuse, pre-treatment energy consumption is low, does not need artificial participation; Pretreated object is to reject metal component and inorganic non-combustible component, uses its comhustible component, makes material component, is mainly water satisfied RDF moulding and service requirements;
2, this technique by sorting, domestic refuse after in small, broken bits after aerobic fermentation after a while, moisture is reduced to below 30%, pass through again mixing of other flammable solid waste lower with other moisture content, auxiliary etc., material moisture can further be reduced to the requirement that meets RDF moulding and burning, removed the higher drying course of energy consumption from, whole fermenting process carries out in sealing, micro-two secondary environments, and the stink that biological deodorizing is removed fermenting process is set.
3, this technique arranges the special material process that is mixed, and according to RDF service requirements, adds the object that part auxiliary solidifies dangerous component, aid burning, contaminant restraining discharge to reach, assists to dispose the waste of other form; Utilize not chloride (or chloride low), trade waste that moisture content is low to water down chlorine and the moisture content in domestic refuse, utilize domestic refuse to water down the heavy metal content in trade waste, reach and reduce pre-treatment cost and guarantee that RDF component is even, the object of stable performance.
4, the object of this technique is domestic refuse and other waste to be made to RDF jointly carry out recovery energy, and RDF moulding process technique is wherein different and different according to the end-use of RDF from equipment.
It should be noted that this processing method is open, if needed, process can be added near infrared sorting unit and be come sorting to be difficult to chloride group of recycling, obtains the green energy resource product without dioxin.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (9)
1. the recycling treatment process of a flammable solid waste, it is characterized in that, described flammable solid waste comprises domestic refuse and other flammable solid waste, described other flammable solid waste comprises at least one in the industrial residue of resource recovery process, flammable trade waste and Hazardous wastes, and described recycling treatment process comprises the following steps:
Step 1: described domestic refuse is carried out to pre-treatment, obtain the first fine crushing material;
Step 2: described other flammable solid waste is carried out to pre-treatment, obtain the second fine crushing material;
Step 3: described the first fine crushing material, the second fine crushing material and auxiliary are mixed with certain proportion, obtain compound;
Step 4: the garbage derivatived fuel of described compound being made on forming machine to predetermined shape.
2. the recycling treatment process of flammable solid waste according to claim 1, is characterized in that, in step 1, described domestic refuse is carried out to pretreated step and comprise successively:
By domestic refuse extrusion dehydration;
Domestic refuse after dehydration is carried out to coarse breaking;
Domestic refuse after coarse breaking is carried out to selection by winnowing one time, obtain light thing and weight;
Light thing is carried out to fine crushing;
Weight is carried out to magnetic separation, the weight after magnetic separation is carried out to fine crushing;
Weight after fine crushing is carried out to secondary selection by winnowing, to the first magnetic separation of weight after secondary selection by winnowing, after carry out vibration winnowing; Secondary selection by winnowing and vibration winnowing light thing out mixes with a light thing of selection by winnowing after above-mentioned fine crushing, obtains the first fine crushing material;
The first fine crushing material is carried out to the aerobic fermentation of the scheduled time.
3. the recycling treatment process of flammable solid waste according to claim 2, is characterized in that, described domestic refuse is carried out to pretreated step and also comprise: the first fine crushing material after aerobic fermentation is carried out to biological deodorizing processing.
4. the recycling treatment process of flammable solid waste according to claim 2, is characterized in that, the first fine crushing material is carried out after aerobic fermentation, and the water content of described the first fine crushing material is down to below 30%.
5. the recycling treatment process of flammable solid waste according to claim 2, is characterized in that, described domestic refuse is carried out to pretreated step and also comprise: using described vibration winnowing weight as construction material or carry out landfill disposal.
6. the recycling treatment process of flammable solid waste according to claim 2, is characterized in that, in step 2, described other flammable solid waste is carried out to pretreated step and comprise:
First, described other flammable solid waste is carried out to sorting, reject metal and inorganics;
Then, other flammable solid waste after sorting is carried out to fine crushing, obtain described the second fine crushing material.
7. according to the recycling treatment process of the flammable solid waste described in claim 2-6 any one, it is characterized in that, in step 3, according to mass percent, described the first fine crushing material accounts for 65%-85%, the second fine crushing material accounts for 15%-35%, and auxiliary accounts for the 2%-15% of the first fine crushing material and the second fine crushing material summation.
8. the recycling treatment process of flammable solid waste according to claim 7, is characterized in that, described auxiliary comprises at least one in ignition dope, binding agent and pollutent inhibitor.
9. the recycling treatment process of flammable solid waste according to claim 8, is characterized in that, described pollutent inhibitor comprises CaO powder.
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| CN201410304383.1A CN104059712B (en) | 2014-06-30 | 2014-06-30 | A kind of recycling processing method of flammable solid discarded object |
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| CN201410304383.1A CN104059712B (en) | 2014-06-30 | 2014-06-30 | A kind of recycling processing method of flammable solid discarded object |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307852A (en) * | 2014-10-20 | 2015-01-28 | 湖南万容科技股份有限公司 | Community-based treatment method of household garbage |
| CN106734082A (en) * | 2016-12-19 | 2017-05-31 | 湖南万容科技股份有限公司 | A kind of life refuse processing method |
| TWI635134B (en) * | 2017-03-16 | 2018-09-11 | 陳一義 | Environmental fuel and method for making the same |
| CN108659906A (en) * | 2017-03-29 | 2018-10-16 | 陈义 | Environment-friendly fuel and its manufacturing method |
| CN110788112A (en) * | 2019-09-29 | 2020-02-14 | 中原环资科技有限公司 | Fine classification and sorting process method for industrial wastes |
| CN112484041A (en) * | 2020-10-15 | 2021-03-12 | 江苏梵坤环保科技发展股份有限公司 | Solid waste recycling treatment method |
| TWI755654B (en) * | 2019-11-28 | 2022-02-21 | 星光環保有限公司 | Energy method for full utilization of waste |
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| CN101856666A (en) * | 2009-04-09 | 2010-10-13 | 王云亭 | Waste disposal method |
| CN102559330A (en) * | 2012-01-10 | 2012-07-11 | 吉林省明泰再生能源有限公司 | Method and device for preparing novel fuel from municipal domestic waste completely |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101856666A (en) * | 2009-04-09 | 2010-10-13 | 王云亭 | Waste disposal method |
| CN102559330A (en) * | 2012-01-10 | 2012-07-11 | 吉林省明泰再生能源有限公司 | Method and device for preparing novel fuel from municipal domestic waste completely |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307852A (en) * | 2014-10-20 | 2015-01-28 | 湖南万容科技股份有限公司 | Community-based treatment method of household garbage |
| CN106734082A (en) * | 2016-12-19 | 2017-05-31 | 湖南万容科技股份有限公司 | A kind of life refuse processing method |
| TWI635134B (en) * | 2017-03-16 | 2018-09-11 | 陳一義 | Environmental fuel and method for making the same |
| CN108659906A (en) * | 2017-03-29 | 2018-10-16 | 陈义 | Environment-friendly fuel and its manufacturing method |
| CN110788112A (en) * | 2019-09-29 | 2020-02-14 | 中原环资科技有限公司 | Fine classification and sorting process method for industrial wastes |
| TWI755654B (en) * | 2019-11-28 | 2022-02-21 | 星光環保有限公司 | Energy method for full utilization of waste |
| CN112484041A (en) * | 2020-10-15 | 2021-03-12 | 江苏梵坤环保科技发展股份有限公司 | Solid waste recycling treatment method |
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| CN104059712B (en) | 2016-05-18 |
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Effective date of registration: 20200424 Address after: 410100 Hunan province Changsha Panpan Changsha economic and Technological Development Zone, Road No. 11 Co-patentee after: HUNAN WANRONG SOLID WASTE PROCESSING Co.,Ltd. Patentee after: Guoying Ming Address before: 410100 Hunan province Changsha Panpan Changsha economic and Technological Development Zone, Road No. 11 Patentee before: Guoying Ming |