CN113897230A - Preparation method of derived fuel RDF - Google Patents
Preparation method of derived fuel RDF Download PDFInfo
- Publication number
- CN113897230A CN113897230A CN202111312935.XA CN202111312935A CN113897230A CN 113897230 A CN113897230 A CN 113897230A CN 202111312935 A CN202111312935 A CN 202111312935A CN 113897230 A CN113897230 A CN 113897230A
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- Prior art keywords
- rdf
- combustible
- separation
- derived fuel
- materials
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- 239000000446 fuel Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 99
- 238000000926 separation method Methods 0.000 claims abstract description 36
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 25
- 239000002910 solid waste Substances 0.000 claims abstract description 19
- 238000007885 magnetic separation Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 11
- 238000000748 compression moulding Methods 0.000 claims description 5
- 238000005034 decoration Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000000465 moulding Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- -1 ferrous metals Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a preparation method of a derived fuel RDF, which comprises the following steps: s1, coarse crushing, namely, coarse crushing the solid waste combustible garbage to obtain crushed materials; s2, air separation, wherein the crushed material is air separated to obtain light material and heavy material; s3, separating, namely screening, magnetic separation, vortex separation and optical separation are sequentially carried out on the light materials to obtain combustible materials; and S4, finely crushing and forming, finely crushing the combustible material to obtain a fine material, and then pressing and forming the fine material to obtain the RDF. The invention not only can separate recoverable metal and inert materials contained in combustible materials in the solid waste combustible garbage, but also can prepare the derived fuel RDF with high heat value and high combustion efficiency, thereby greatly reducing the pollution of the solid waste garbage to the environment.
Description
Technical Field
The invention belongs to the field of solid waste treatment, and particularly relates to a preparation method of a derived fuel RDF.
Background
Under the policy of "carbon peak, carbon neutralization", various industries are actively seeking technologies and innovations for reducing carbon emissions, and "carbon neutralization" is followed by a century-grade energy revolution. However, the combustible materials in the municipal refuse have higher heat value, and the research shows that the combustible materials in the municipal refuse are mostly treated by burning, and the carbon emission generated in the refuse burning process increases the environmental burden and wastes the material heat value.
Therefore, in order to respond to the current policy and effectively recycle the solid waste, a new waste disposal process capable of preparing the solid waste into high calorific value RDF needs to be researched.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a derived fuel RDF, which can not only separate recoverable metals and inert materials contained in combustible materials in solid waste combustible garbage, but also prepare the derived fuel RDF with high calorific value and high combustion efficiency, thereby greatly reducing the pollution of the solid waste garbage to the environment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a preparation method of a derived fuel RDF, which comprises the following steps:
s1, coarse crushing, namely, coarse crushing the solid waste combustible garbage to obtain crushed materials;
s2, air separation, wherein the crushed material is air separated to obtain light material and heavy material;
s3, separating, namely screening, magnetic separation, vortex separation and optical separation are sequentially carried out on the light materials to obtain combustible materials;
and S4, finely crushing and forming, finely crushing the combustible material to obtain a fine material, and then pressing and forming the fine material to obtain the RDF.
Preferably, in the step S1, the solid waste combustible garbage includes solid combustible materials in building or decoration processes and household combustible garbage.
Preferably, in the step S1, the particle size of the crushed material is less than or equal to 150 mm.
Preferably, in the step S2, the air separation efficiency in the air separation process is greater than or equal to 95%.
Preferably, in the step S2, the heavy material is subjected to magnetic separation, vortex separation, manual separation and optical separation to obtain a combustible material, and the combustible material is subjected to fine crushing and press forming in the step S4 to obtain the derivative fuel RDF.
Preferably, in the step S3, the undersize obtained in the screening process has a diameter less than or equal to 100 mm.
Preferably, in the step S3, the oversize product obtained in the screening process is subjected to magnetic separation, vortex separation and optical separation to obtain a combustible material, and the combustible material is subjected to fine crushing and compression molding in the step S4 to obtain the derivative fuel RDF.
Preferably, in the step S4, the particle size of the fine material is less than or equal to 80 mm.
Preferably, the RDF of the derivative fuel has a lower heating value of 3500kcal/kg or more.
The invention has the following beneficial effects:
1. the preparation method of the RDF not only can separate recoverable metal and inert materials contained in combustible materials in the solid waste combustible garbage, but also can prepare the RDF with high calorific value and high combustion efficiency, thereby greatly reducing the pollution of the solid waste garbage to the environment;
2. the preparation method of the derived fuel RDF provided by the invention enables the great high-value resource utilization of solid waste garbage, provides a new practical way for reducing coal burning, and responds to the double carbon policy of carbon emission reduction and carbon neutralization.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic flow diagram of a process for producing a derived fuel RDF according to the present invention.
Detailed Description
In order to better understand the technical scheme of the invention, the technical scheme of the invention is further explained by combining the embodiment.
Referring to fig. 1, the method for preparing the derived fuel RDF provided by the present invention includes the following steps:
s1, coarse crushing, namely, coarse crushing the solid waste combustible garbage to obtain crushed materials;
the specific process is as follows: and carrying out coarse crushing treatment on solid waste combustible garbage (such as large decoration garbage, rubber, woven packaging bags and other decoration garbage in the building or decoration process, and other household combustible garbage which are preliminarily crushed by a loader) by a coarse crusher to obtain crushed objects with the particle size of less than or equal to 150 mm.
S2, air separation, wherein the crushed material is air separated to obtain light material and heavy material;
the specific process is as follows: carrying out winnowing treatment on the crushed materials by a winnowing machine to obtain heavy materials and light materials, wherein the light materials are separated by mainly utilizing the principle of different densities in the winnowing process, and the winnowing efficiency can reach more than or equal to 95%; in the process, the ferrous metal and the non-ferrous metal can be sold or recycled, the inert material is externally transported and buried, the chlorine-containing material is separated for preventing corrosion and other phenomena of a rear-end derivative fuel RDF finished product in the utilization process, and the combustible material can be finely crushed and pressed in the subsequent step S4 to obtain the derivative fuel RDF.
S3, separating, namely screening, magnetic separation, vortex separation and optical separation are sequentially carried out on the light materials to obtain combustible materials;
the specific process is as follows: screening light materials through a drum screen to obtain oversize materials with the particle size larger than 100mm and undersize materials with the particle size smaller than or equal to 100mm, separating ferrous metals and non-ferromagnetic materials from the undersize materials through magnetic separation by a magnetic separator, carrying out eddy current separation on the non-ferromagnetic materials through an eddy current separator to obtain non-ferrous metals and non-metallic materials, and carrying out optical separation on the non-metallic materials through an optical separator to obtain chlorine-containing materials and combustible materials; in the process, ferrous metals and nonferrous metals can be sold or recycled, the chlorine-containing material is separated to prevent corrosion and the like of the rear-end derived fuel RDF finished product in the utilization process, and the combustible material can be subjected to fine crushing treatment and compression molding in the subsequent step S4 to obtain the derived fuel RDF.
And S4, finely crushing and forming, finely crushing the combustible material to obtain a fine material, and then pressing and forming the fine material to obtain the RDF.
The specific process is as follows: and (2) performing fine crushing treatment on the combustible material obtained in the step by using a fine crusher to obtain a fine material with the particle size of less than or equal to 80mm, and then performing compression molding on the fine material by using an RDF molding machine to obtain the derivative fuel RDF with the particle size of less than or equal to 50mm, wherein the lower calorific value of the derivative fuel RDF is more than 3500 kcal/kg.
The process for the preparation of the derived fuel RDF according to the invention is further described below with reference to specific examples;
example 1
The preparation method of the derived fuel RDF in the embodiment is as follows:
100t of solid combustible garbage is coarsely crushed to the particle size of less than or equal to 150mm to obtain crushed garbage, the crushed garbage enters a winnowing system, light materials after winnowing are sequentially subjected to screening, magnetic separation, vortex separation and light separation to obtain combustible materials, and heavy materials are sequentially subjected to magnetic separation, vortex separation and light separation to separate the combustible materials from the heavy materials. And then finely crushing and molding the combustible material to finally obtain 81.0t of derived fuel RDF (calorific value 3580kcal/kg), 0.5t of metal, 12.0t of sand and stone and 6.5t of impurities.
Example 2
The method comprises the steps of roughly crushing 80t of solid combustible garbage until the particle size is smaller than or equal to 150mm to obtain crushed objects, then enabling the crushed objects to enter a winnowing system, sequentially screening, magnetically separating, vortex separating and optically separating light materials after winnowing to obtain combustible materials, and sequentially carrying out magnetically separating, vortex separating and optically separating treatment on heavy materials to separate the combustible materials from the heavy materials. And then finely crushing and molding the combustible material to finally obtain the derivative fuel RDF (calorific value 3620kcal/kg)64.2t, metal 0.3t, sand 8.3t and impurities 7.2 t.
Example 3
50t of solid combustible garbage is coarsely crushed to the particle size of less than or equal to 150mm to obtain crushed objects, then the crushed objects enter a winnowing system, light materials after winnowing are sequentially subjected to screening, magnetic separation, vortex separation and light separation to obtain combustible materials, and heavy materials are sequentially subjected to magnetic separation, vortex separation and light separation to separate the combustible materials from the heavy materials. And then finely crushing and molding the combustible material to finally obtain 40.1t of derived fuel RDF (calorific value 3710kcal/kg), 0.1t of metal, 5.2t of sand and 4.6t of impurities.
In conclusion, the preparation method of the RDF can not only separate recoverable metal and inert materials contained in combustible materials in the solid waste combustible garbage, but also prepare the RDF with high calorific value and high combustion efficiency, thereby greatly reducing the pollution of the solid waste garbage to the environment; the preparation method of the derived fuel RDF provided by the invention enables the great high-value resource utilization of solid waste garbage, provides a new practical way for reducing coal burning, and responds to the double carbon policy of carbon emission reduction and carbon neutralization.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (9)
1. A method for preparing a derived fuel RDF, comprising the steps of:
s1, coarse crushing, namely, coarse crushing the solid waste combustible garbage to obtain crushed materials;
s2, air separation, wherein the crushed material is air separated to obtain light material and heavy material;
s3, separating, namely screening, magnetic separation, vortex separation and optical separation are sequentially carried out on the light materials to obtain combustible materials;
and S4, finely crushing and forming, finely crushing the combustible material to obtain a fine material, and then pressing and forming the fine material to obtain the RDF.
2. The method for preparing RDF as derived fuel in claim 1, wherein in step S1, the solid waste combustible refuse includes solid combustible material in building or decoration process and household combustible refuse.
3. The method for preparing RDF as derived fuel in claim 1, wherein the particle size of the crushed material in step S1 is less than or equal to 150 mm.
4. The method for preparing RDF as defined in claim 1, wherein in step S2, the air separation efficiency is greater than or equal to 95% during the air separation process.
5. The method for preparing RDF as derived fuel in claim 1, wherein in step S2, the heavy material is subjected to magnetic separation, vortex separation, manual separation and optical separation to obtain combustible material, and the combustible material is subjected to step S4, fine crushing and compression molding to obtain RDF as derived fuel.
6. The method for preparing RDF as derived fuel in claim 1, wherein in step S3, the undersize obtained in the screening process has a diameter less than or equal to 100 mm.
7. The method for preparing RDF as derived fuel in claim 1, wherein in step S3, the oversize obtained in the screening process is subjected to magnetic separation, vortex separation and optical separation to obtain combustible material, and the combustible material is subjected to step S4, fine crushing and compression molding to obtain RDF as derived fuel.
8. The method for preparing RDF as a derived fuel as claimed in claim 1, wherein the grain size of the fine material in step S4 is 80mm or less.
9. The preparation method of the RDF as the derived fuel according to any one of claims 1 to 8, wherein the grain diameter of the RDF is less than or equal to 50mm, and the lower calorific value of the RDF is greater than or equal to 3500 kcal/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312935.XA CN113897230A (en) | 2021-11-08 | 2021-11-08 | Preparation method of derived fuel RDF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312935.XA CN113897230A (en) | 2021-11-08 | 2021-11-08 | Preparation method of derived fuel RDF |
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| Publication Number | Publication Date |
|---|---|
| CN113897230A true CN113897230A (en) | 2022-01-07 |
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| CN202111312935.XA Pending CN113897230A (en) | 2021-11-08 | 2021-11-08 | Preparation method of derived fuel RDF |
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| CN (1) | CN113897230A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806669A (en) * | 2022-05-06 | 2022-07-29 | 浙江华章科技有限公司 | Method for producing fuel rod by using papermaking waste residues |
| CN114874823A (en) * | 2022-05-06 | 2022-08-09 | 浙江华章科技有限公司 | Production control method of fuel rod |
| CN115305126A (en) * | 2022-06-30 | 2022-11-08 | 中国能源建设集团浙江省电力设计院有限公司 | Method for preparing derived fuel from classified dry garbage |
| CN116200218A (en) * | 2023-04-26 | 2023-06-02 | 北京鼎创环保有限公司 | Production system and production process for producing fuel rods from decoration garbage |
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2021
- 2021-11-08 CN CN202111312935.XA patent/CN113897230A/en active Pending
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| CN107497831A (en) * | 2017-09-12 | 2017-12-22 | 李新方 | A kind of its recovery method as resource of domestic waste sorting and charing integrated treatment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806669A (en) * | 2022-05-06 | 2022-07-29 | 浙江华章科技有限公司 | Method for producing fuel rod by using papermaking waste residues |
| CN114874823A (en) * | 2022-05-06 | 2022-08-09 | 浙江华章科技有限公司 | Production control method of fuel rod |
| CN114806669B (en) * | 2022-05-06 | 2023-04-14 | 浙江华章科技有限公司 | Method for producing fuel rod by using papermaking waste residues |
| CN115305126A (en) * | 2022-06-30 | 2022-11-08 | 中国能源建设集团浙江省电力设计院有限公司 | Method for preparing derived fuel from classified dry garbage |
| CN116200218A (en) * | 2023-04-26 | 2023-06-02 | 北京鼎创环保有限公司 | Production system and production process for producing fuel rods from decoration garbage |
| CN116200218B (en) * | 2023-04-26 | 2023-08-15 | 北京鼎创环保有限公司 | Production system and production process for producing fuel rods from decoration garbage |
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