CN102010771A - Treatment method for reducing moisture content of raw materials of refuse derived fuel - Google Patents
Treatment method for reducing moisture content of raw materials of refuse derived fuel Download PDFInfo
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- CN102010771A CN102010771A CN2010102900590A CN201010290059A CN102010771A CN 102010771 A CN102010771 A CN 102010771A CN 2010102900590 A CN2010102900590 A CN 2010102900590A CN 201010290059 A CN201010290059 A CN 201010290059A CN 102010771 A CN102010771 A CN 102010771A
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- raw material
- precipitation
- derivatived fuel
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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 treatment method for reducing the moisture content of composts serving as raw materials of a refuse derived fuel, which comprises the following steps of: taking materials of combustibles and compostable materials which are obtained by refuse sorting as the raw materials for producing the refuse derived fuel; crushing, namely crushing the materials serving as the raw materials to ensure that the grain diameter of the crushed materials is below 80 millimeters; stacking the materials, allowing the crushed materials to form a material stack, and arranging an air flue corresponding to the material stack; and reducing the moisture content by ventilating and fermenting, namely ventilating the material stack in the air flue by using ventilating equipment, stacking the material stack statically for 7 to 10 days under the ventilating condition of between 0.05 and 0.20 m<3>air/m<3>material.minute, decomposing the compostable materials in the materials aerobically by microbes in the material stack and producing heat to ensure that the temperature of the stack is raised, the moisture content of the materials is reduced from 40 to 50 percent to 15 to 25 percent, and the moisture content of the treated materials meets the requirement of producing the refuse derived fuel. In the treatment method, the investment cost and running cost are low, and resource waste is avoided; and compared with the conventional hot drying method, the treatment method has low cost.
Description
Technical field
The present invention relates to garbage derivatived fuel RDF raw material treatment technology, especially relate to a kind of treatment process of the raw material as garbage derivatived fuel being carried out precipitation.
Background technology
At present, after the screen overflow in Urban Domestic Waste Comprehensive Treatment factory pre-treatment workshop generally passed through selection by winnowing and artificial separation, leftover materials carried out landfill disposal.This treatment process not only needs to take landfill yard storage capacity, cost landfill disposal expense, and also owing to still contain a large amount of plastics in the leftover materials, directly landfill also is the significant wastage to resource.These leftover materials are because through selection by winnowing and artificial separation, wherein contain the plastics kind that the higher reclamation goods and materials are worth, substantially be removed as vinyon (PE) etc., remaining various the mixing that be mainly moulded, reasonably treatment process is as garbage derivatived fuel (RDF with it, Refuse derived Fuel) raw materials for production are made into RDF, recovered energy after burning.Yet because this partial material water ratio is generally higher, be about 40%～50%,, not only seriously reduced the calorific value of the RDF that makes, influence energy recovery efficiency as not reducing water ratio; And can influence the fuel stick moulding process of RDF, and making not easy-formation of raw material, RDF makes failure.At present, the way that reduces water ratio commonly used is the heat drying method, and this method investment and operation cost are all higher, finally cause the total energy organic efficiency of system lower.
Summary of the invention
For overcoming shortcoming and defect of the prior art, the embodiment of the invention provides a kind of treatment process of the raw material as garbage derivatived fuel being carried out precipitation, solution is too high as the compost material water ratio of garbage derivatived fuel raw materials for production, the follow-up garbage derivatived fuel production of obstruction, and heat drying method precipitation cost height, the problem that the total energy organic efficiency is low.
The objective of the invention is to be achieved through the following technical solutions:
It is a kind of to carry out the treatment process of precipitation as the compost of garbage derivatived fuel raw material that the embodiment of the invention provides, and comprising:
With the combustiblematerials that obtains behind the refuse classification with can pile rotten thing material as the raw material of making garbage derivatived fuel;
Broken: as the material as raw material to be carried out fragmentation, material particular diameter is crushed to below the 80mm;
Material is stacked: make the material after the fragmentation form the bank body, corresponding described bank body is provided with the air channel;
Ventilating fermentation precipitation is handled: described bank body being ventilated by described air channel with ventilation installation, is 0.05～0.2m in ventilation condition
3Air/m
3Make the static stacking of bank body 7～10 days under the condition of material min, by pile rotten thing and heat production in the microorganism aerobic decomposing materials in the bank body heap temperature is risen, the water ratio that makes material drops to 15～25% from 40%～50%, makes material water ratio satisfy the requirement of making garbage derivatived fuel after the processing.
The technical scheme that provides from the invention described above embodiment as can be seen, in the embodiment of the invention by select materials, broken, material is stacked and step such as ventilating fermentation precipitation processing, by stacking fermentation and the cooperation of ventilating to material is static, need not additionally increase under the prerequisite of thermal source, can be to carrying out precipitation as the compost of garbage derivatived fuel RDF raw material, make the water ratio of the raw material after the processing meet the requirement of producing garbage derivatived fuel RDF.This treatment process investment and running cost are all lower, have avoided the wasting of resources, have solved in the domestic rubbish disposal production line, and a large amount of plastics class material landfill disposal account for landfill storage capacity and need the cost processing costs; And when the fuel, it is higher to adopt existing heat drying method that raw material is reduced the water ratio cost, the problem that loses more than gain.
Description of drawings
The process flow figure that Fig. 1 provides for the embodiment of the invention;
Used fermentation cabin is provided with the synoptic diagram in bank body and air channel in the treatment process that Fig. 2 provides for the embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment
Present embodiment provides a kind of treatment process of the compost as the garbage derivatived fuel raw material being carried out precipitation, can carry out precipitation to the material that can be used as fuel after the treatment of urban garbage, produce the treatment process of garbage derivatived fuel RDF, as shown in Figure 1, this treatment process comprises:
With the combustiblematerials that obtains behind the refuse classification with can pile rotten thing material as the raw material of making garbage derivatived fuel;
Broken: as the material as raw material to be carried out fragmentation, material particular diameter is crushed to below the 80mm; Specifically can adopt shear crusher or be suitable in the other types crusher of shredded plastic class material any material is carried out fragmentation;
Material is stacked: make the material after the fragmentation form the bank body, corresponding described bank body 1 is provided with air channel 2; Specifically can be: the mass transport after the fragmentation to fermentation cabin, is formed the heap body in fermentation cabin, the bank body 1 of formation be shaped as taper, the height of bank body 1 is 1.5～3m; The corresponding air channel of bank body that in setting of the bottom of fermentation cabin and fermentation cabin, is provided with;
Ventilating fermentation precipitation is handled: described bank body ventilated by described air channel with ventilation installation, and, be 0.05～0.2m in ventilation condition
3Air/m
3Make the static stacking of bank body 7～10 days under the condition of material min, by pile rotten thing and heat production in the microorganism aerobic decomposing materials in the bank body heap temperature is risen, the water ratio that makes material drops to 15～25% from 40%～50%, makes material water ratio satisfy the requirement of making garbage derivatived fuel after the processing.In the ventilating fermentation precipitation treatment step, used ventilation installation can adopt any in centrifugal blower, positive blower or the negative pressure suction fan.
In the reality, the compost precipitation system of RDF raw materials for production can be made up of artificial separation platform, crusher, year car conveyor, static fermentation storehouse (concrete structure is seen Fig. 2) and centrifugal blower.Concrete compost precipitation treating processes is: on the artificial separation platform by the letter sorting workman with the various noncombustibleses in the material on manual sorting's rotary conveyor, can not pile rotten thing and have the hard thing of obstruction to sort out follow-up break process, leftover materials are delivered to crusher, after in crusher, being crushed to material particular diameter below the 80mm, material carries the car conveyor through being delivered to, carry the car conveyor and the material discharging after the fragmentation can be formed the high heap body of 1.5m～3m to each static fermentation storehouse, again by the air channel of centrifugal blower by being arranged on static fermentation storehouse bottom to heap body air feed, microorganism in the material rotten thing of piling in the decomposing materials under suitable ventilation oxygen supply condition produces heat simultaneously, make heap temperature raise, under the gentle suitable ventilation condition of higher heap, the moisture of heap body is accelerated evaporation, the corresponding reduction of the water ratio of material, through 7～10 days compost and be aided with ventilation, water ratio is reduced to about 20%, can satisfy the requirement of RDF production to material water ratio.
In sum, in the treatment process of the embodiment of the invention by select materials, broken, material is stacked and step such as ventilating fermentation precipitation processing, by stacking fermentation and the cooperation of ventilating to material is static, need not additionally increase under the prerequisite of thermal source, can be to carrying out precipitation as the compost of garbage derivatived fuel RDF raw material, make the water ratio of the raw material after the processing meet the requirement of producing garbage derivatived fuel RDF.This treatment process investment and running cost are all lower, avoided the wasting of resources, solved in the domestic rubbish disposal production line, a large amount of plastics class material landfill disposal account for landfill storage capacity and need the cost processing costs, and when the fuel, it is higher to adopt existing heat drying method that raw material is reduced the water ratio cost, the problem that loses more than gain.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. one kind to carry out the treatment process of precipitation as the compost of garbage derivatived fuel raw material, it is characterized in that, comprising:
With the combustiblematerials that obtains behind the refuse classification with can pile rotten thing material as the raw material of making garbage derivatived fuel;
Broken: as the material as raw material to be carried out fragmentation, material particular diameter is crushed to below the 80mm;
Material is stacked: make the material after the fragmentation form the bank body, corresponding described bank body is provided with the air channel;
Ventilating fermentation precipitation is handled: described bank body being ventilated by described air channel with ventilation installation, is 0.05～0.2m in ventilation condition
3Air/m
3Make the static stacking of bank body 7～10 days under the condition of material min, by pile rotten thing and heat production in the microorganism aerobic decomposing materials in the bank body heap temperature is risen, the water ratio that makes material drops to 15～25% from 40%～50%, makes material water ratio satisfy the requirement of making garbage derivatived fuel after the processing.
2. as claimed in claim 1ly it is characterized in that, adopt shear crusher in the described broken step or be suitable in the crusher of shredded plastic class material any carry out the treatment process of precipitation as the compost of garbage derivatived fuel raw material.
3. treatment process of the compost as the garbage derivatived fuel raw material being carried out precipitation as claimed in claim 1, it is characterized in that, described stacking step specifically comprises: with the mass transport after the fragmentation to fermentation cabin, form the bank body in fermentation cabin, the bottom of described fermentation cabin is provided with and the interior corresponding air channel of bank body that is provided with of fermentation cabin.
4. describedly it is characterized in that as claim 1 or 3 carry out the treatment process of precipitation as the compost of garbage derivatived fuel raw material, the bank body that forms in the described stacking step be shaped as taper, the height of bank body is 1.5～3m.
5. as claimed in claim 1ly it is characterized in that to carry out the treatment process of precipitation as the compost of garbage derivatived fuel raw material described ventilation installation adopt any in centrifugal blower, positive blower or the negative pressure suction fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102900590A CN102010771A (en) | 2010-09-21 | 2010-09-21 | Treatment method for reducing moisture content of raw materials of refuse derived fuel |
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| CN2010102900590A CN102010771A (en) | 2010-09-21 | 2010-09-21 | Treatment method for reducing moisture content of raw materials of refuse derived fuel |
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| CN102010771A true CN102010771A (en) | 2011-04-13 |
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| CN2010102900590A Pending CN102010771A (en) | 2010-09-21 | 2010-09-21 | Treatment method for reducing moisture content of raw materials of refuse derived fuel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936524A (en) * | 2011-08-15 | 2013-02-20 | 朱学智 | Garbage sorting disposal system and garbage disposal method for the same |
| CN102977968A (en) * | 2012-11-27 | 2013-03-20 | 中国环境科学研究院 | Method for jointly preparing refuse derived fuel by household refuse and organic waste |
| CN106122969A (en) * | 2016-06-29 | 2016-11-16 | 中环蓝天（厦门）物联网科技有限公司 | One way of life rubbish thermal source combined drying technique |
| CN110576025A (en) * | 2019-08-12 | 2019-12-17 | 中原环资科技有限公司 | Process method for fine classification and sorting pretreatment of household garbage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130944A (en) * | 1998-10-30 | 2000-05-12 | Ishikawajima Harima Heavy Ind Co Ltd | Refuse drying method and apparatus |
| CN101168163A (en) * | 2007-11-13 | 2008-04-30 | 光大环保工程技术(深圳)有限公司 | Method for sectional processing living garbage |
-
2010
- 2010-09-21 CN CN2010102900590A patent/CN102010771A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130944A (en) * | 1998-10-30 | 2000-05-12 | Ishikawajima Harima Heavy Ind Co Ltd | Refuse drying method and apparatus |
| CN101168163A (en) * | 2007-11-13 | 2008-04-30 | 光大环保工程技术(深圳)有限公司 | Method for sectional processing living garbage |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936524A (en) * | 2011-08-15 | 2013-02-20 | 朱学智 | Garbage sorting disposal system and garbage disposal method for the same |
| CN102977968A (en) * | 2012-11-27 | 2013-03-20 | 中国环境科学研究院 | Method for jointly preparing refuse derived fuel by household refuse and organic waste |
| CN106122969A (en) * | 2016-06-29 | 2016-11-16 | 中环蓝天（厦门）物联网科技有限公司 | One way of life rubbish thermal source combined drying technique |
| CN110576025A (en) * | 2019-08-12 | 2019-12-17 | 中原环资科技有限公司 | Process method for fine classification and sorting pretreatment of household garbage |
| CN110576025B (en) * | 2019-08-12 | 2022-01-07 | 中原环资科技有限公司 | Process method for fine classification and sorting pretreatment of household garbage |
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Application publication date: 20110413 |