CN103589475A - Production method of derived fuel of CCA (chromated copper arsenate) wood hazardous waste - Google Patents
Production method of derived fuel of CCA (chromated copper arsenate) wood hazardous waste Download PDFInfo
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- CN103589475A CN103589475A CN201310571640.3A CN201310571640A CN103589475A CN 103589475 A CN103589475 A CN 103589475A CN 201310571640 A CN201310571640 A CN 201310571640A CN 103589475 A CN103589475 A CN 103589475A
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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 production method of derived fuel of CCA (chromated copper arsenate) wood hazardous waste. The production method comprises steps a follows: 1), the CCA wood hazardous waste is subjected to pre-crushing, magnetic separation and secondary crushing sequentially, and 2-3 mm long wood chips are obtained; 2), the wood chips is soaked in 0.1%-0.2% of a waste oxalic acid solution for not less than one day; and then the soaked wood chips are dried, so that the moisture content is reduced to be between 5% and 20%; and 3), on the principle of a stable fuel value, a waste organic solvent which has a heat value and accounts for 5%-20% of the weight of the dried wood chips is added, and the derived fuel is shaped by extrusion forming equipment after the mixture is uniformly stirred. According to the production method, the characteristic that the CCA wood hazardous waste has the stable fuel value is used, so that resource utilization of the CCA wood hazardous waste is realized, the waste oxalic acid solution and the waste organic solvent are harmlessly treated, and the purpose of treating waste with waste is achieved.
Description
Technical field
The present invention relates to a kind of production method of fuel, particularly a kind of production method of CCA timber Hazardous wastes derivatived fuel.
Background technology
CCA(copper chromium arsenic) timber Hazardous wastes mainly refers to waste wood, wood chip or the timber relic of being infected with CCA wood preservative.If these Hazardous wastess arbitrarily abandon, oxious component wherein exposes for a long time as heavy metals such as arsenic, chromium, copper, through weathering, drench with rain, rainwash etc. can constantly penetrate among soil, Soil structure is damaged, once surpass the carrying capacity of soil, these heavy metal elements probably pollute groundwater resource, thereby will environment, human-body safety be formed to potential harm.In the last few years, the consumption that China CCA sanitas is processed timber increased day by day, and these timber discarded after, be to burn, bury or directly abandon all and can cause larger harm to Human and nature environment.Therefore,, how safely disposing CCA timber Hazardous wastes efficiently becomes a problem demanding prompt solution.
At present, the recycling of CCA timber Hazardous wastes mainly concentrates on the processing of functional materials, removes the aspects such as venom, biological degradation, compost, and because tooling cost is relatively high, a large amount of application exists certain difficulty.And the heavy metal such as arsenic, chromium, copper can be residual in lime-ash in burning process for CCA timber Hazardous wastes, if the mishandling pollution that can cause equally heavy metal of lime-ash.
Summary of the invention
A kind of method that the present invention provides the CCA of utilization timber Hazardous wastes, useless oxalic acid and spent organic solvent to produce timber derivatived fuel for solving the technical problem existing in known technology.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: a kind of production method of CCA timber Hazardous wastes derivatived fuel, comprises the following steps:
One) CCA timber Hazardous wastes is sequentially carried out to precrushing, magnetic separation and two-stage crushing, obtain the long wood shavings of 2～3mm;
Two) with 0.1～0.2% useless oxalic acid solution, soak wood shavings, soak time is no less than 1 day; Then the wood shavings after soaking is dried, water ratio is reduced between 5～20%;
Three) in line with the stable principle of fuel value, according to 5～20% of wood shavings weight after dry, add wherein the spent organic solvent with calorific value, after stirring, adopt extrusion formation equipment to be fixed to shaping derivatived fuel.
Advantage and positively effect that the present invention has are: adopting CCA timber Hazardous wastes, useless oxalic acid and spent organic solvent is raw materials for production, utilize useless oxalic acid as heavy metals such as the arsenic in amendment removal CCA timber Hazardous wastes, chromium, copper, the spent organic solvent that recycling has calorific value increases calorific value as bonding medium, not only effectively removed the content of arsenic, chromium, copper heavy metal in CCA timber Hazardous wastes, and strengthened the calorific value of derivatived fuel, greatly reduce the content of heavy metal in lime-ash.The present invention makes full use of CCA timber Hazardous wastes and has the stable feature of calorific value, has realized the recycling of CCA timber Hazardous wastes, also makes useless oxalic acid and spent organic solvent obtain harmlessness disposing, has realized the object of the treatment of wastes with processes of wastes against one another.And Hazardous wastes raw material sources approach of the present invention, composition are all relatively clear and definite, saved the link of sorting.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
Refer to Fig. 1, a kind of production method of CCA timber Hazardous wastes derivatived fuel, comprises the following steps:
One) 1#, 2# and 3#CCA timber Hazardous wastes are sequentially carried out respectively to precrushing, magnetic separation and two-stage crushing, obtain the long wood shavings of 2～3mm;
Two) with 0.1% useless oxalic acid solution, soak respectively above-mentioned wood shavings, make wood shavings thoroughly moistening, stir it is fully contacted, soak time is no less than 1 day.Chromium, copper, arsenic content and clearance thereof in three kinds of CCA timber Hazardous wastess are in Table 1.Wherein useless oxalic acid for from laboratory, the oxalic acid waste liquid collected of factory.
The clearance of table 1CCA timber Hazardous wastes chromium, copper, arsenic
Wood shavings after soaking is dried, makes its water ratio be reduced to respectively 20%.
Three) in line with the stable principle of fuel value, according to 5% of wood shavings weight after dry, add wherein the spent organic solvent with calorific value, after stirring, adopt extrusion formation equipment to be fixed to shaping derivatived fuel.
The spent organic solvent that plays opsonization can adopt useless methyl alcohol, toluene, acetone etc., makes this part organic solvent refuse obtain good disposal in cost-saving.Before using these organic solvent refuses, need filter the organic solvent that contains impurity class, and after its major ingredient of judgement, its calorific value is measured, according to the difference of its calorific value, in line with the stable principle of fuel value, control the add-on of spent organic solvent, adding mainly as bonding medium of spent organic solvent, also can to the calorific value of derivatived fuel, nurse one's health to a certain extent, finally by extrusion formation equipment, be fixed to shaping derivatived fuel, its specific nature parameter is as shown in table 2 simultaneously.
The significant parameter of table 2CCA timber Hazardous wastes derivatived fuel
Note: 1# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless formaldehyde as main, and its calorific value is 12034kJ/kg; 2# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless phenol as main, and its calorific value is 12153kJ/kg; 3# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol as main, and its calorific value is 13411kJ/kg.
Embodiment 2:
Refer to Fig. 1, a kind of production method of CCA timber Hazardous wastes derivatived fuel, comprises the following steps:
One) 4#, 5# and 6#CCA timber Hazardous wastes are sequentially carried out respectively to precrushing, magnetic separation and two-stage crushing, obtain the long wood shavings of 2～3mm;
Two) with 0.2% useless oxalic acid solution, soak respectively above-mentioned wood shavings, make wood shavings thoroughly moistening, stir it is fully contacted, soak time is no less than 1 day.Chromium, copper, arsenic content and clearance thereof in three kinds of CCA timber Hazardous wastess are in Table 1.Wherein useless oxalic acid for from laboratory, the oxalic acid waste liquid collected of factory.
The clearance of table 1CCA timber Hazardous wastes chromium, copper, arsenic
Wood shavings after soaking is dried, makes its water ratio be reduced to 5%.
Three) in line with the stable principle of fuel value, according to 20% of wood shavings weight after dry, add wherein the spent organic solvent with calorific value, after stirring, adopt extrusion formation equipment to be fixed to shaping derivatived fuel.
The spent organic solvent that plays opsonization can adopt useless methyl alcohol, toluene, acetone etc., makes this part organic solvent refuse obtain good disposal in cost-saving.Before using these organic solvent refuses, need filter the organic solvent that contains impurity class, and after its major ingredient of judgement, its calorific value is measured, according to the difference of its calorific value, in line with the stable principle of fuel value, control the add-on of spent organic solvent, adding mainly as bonding medium of spent organic solvent, also can to the calorific value of derivatived fuel, nurse one's health to a certain extent, finally by extrusion formation equipment, be fixed to shaping derivatived fuel, its specific nature parameter is as shown in table 2 simultaneously.
The significant parameter of table 2CCA timber Hazardous wastes derivatived fuel
Note: 1# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless formaldehyde as main, and its calorific value is 12034kJ/kg; 2# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless phenol as main, and its calorific value is 12153kJ/kg; 3# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol as main, and its calorific value is 13411kJ/kg.
Embodiment 3:
Refer to Fig. 1, a kind of production method of CCA timber Hazardous wastes derivatived fuel, comprises the following steps:
One) 7#, 8# and 9#CCA timber Hazardous wastes are sequentially carried out respectively to precrushing, magnetic separation and two-stage crushing, obtain the long wood shavings of 2～3mm;
Two) with 0.15% useless oxalic acid solution, soak respectively above-mentioned wood shavings, make wood shavings thoroughly moistening, stir it is fully contacted, soak time is no less than 1 day.Chromium, copper, arsenic content and clearance thereof in three kinds of CCA timber Hazardous wastess are in Table 1.Wherein useless oxalic acid for from laboratory, the oxalic acid waste liquid collected of factory.
The clearance of table 1CCA timber Hazardous wastes chromium, copper, arsenic
Wood shavings after soaking is dried, makes its water ratio be reduced to 15%.
Three) in line with the stable principle of fuel value, according to 10% of wood shavings weight after dry, add wherein the spent organic solvent with calorific value, after stirring, adopt extrusion formation equipment to be fixed to shaping derivatived fuel.
The spent organic solvent that plays opsonization can adopt useless methyl alcohol, toluene, acetone etc., makes this part organic solvent refuse obtain good disposal in cost-saving.Before using these organic solvent refuses, need filter the organic solvent that contains impurity class, and after its major ingredient of judgement, its calorific value is measured, according to the difference of its calorific value, in line with the stable principle of fuel value, control the add-on of spent organic solvent, adding mainly as bonding medium of spent organic solvent, also can to the calorific value of derivatived fuel, nurse one's health to a certain extent, finally by extrusion formation equipment, be fixed to shaping derivatived fuel, its specific nature parameter is as shown in table 2 simultaneously.
The significant parameter of table 2CCA timber Hazardous wastes derivatived fuel
Note: 1# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless formaldehyde as main, and its calorific value is 12034kJ/kg; 2# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol, useless phenol as main, and its calorific value is 12153kJ/kg; 3# spent organic solvent is that laboratory is used waste liquid take to give up methyl alcohol as main, and its calorific value is 13411kJ/kg.
The derivatived fuel physical aspect that adopts the present invention to produce is stable, matter is loose, not agglomerating, easily store and carry, and is particularly suitable for utilizing cement kiln to burn.
If the experiment proved that above-mentioned useless oxalic acid and above-mentioned spent organic solvent adopt respectively without the oxalic acid using and alternative without the organic solvent using, effect can be better, but cost can corresponding increase.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (1)
1. a production method for CCA timber Hazardous wastes derivatived fuel, is characterized in that, comprises the following steps:
One) CCA timber Hazardous wastes is sequentially carried out to precrushing, magnetic separation and two-stage crushing, obtain the long wood shavings of 2～3mm;
Two) with 0.1～0.2% useless oxalic acid solution, soak wood shavings, soak time is no less than 1 day; Then the wood shavings after soaking is dried, water ratio is reduced between 5～20%;
Three) in line with the stable principle of fuel value, according to 5～20% of wood shavings weight after dry, add wherein the spent organic solvent with calorific value, after stirring, adopt extrusion formation equipment to be fixed to shaping derivatived fuel.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768702A (en) * | 2017-10-26 | 2018-03-06 | 成都先进金属材料产业技术研究院有限公司 | The minimizing technology of copper ion in a kind of V electrolyte |
| WO2023077097A1 (en) * | 2021-10-29 | 2023-05-04 | Simonpietri Marie Joelle | Processing and gasification of construction and demolition materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899349A (en) * | 2010-07-27 | 2010-12-01 | 昆明理工大学 | Method for preparing solid renewable clean fuel from agricultural and forestry waste/domestic garbage |
| CN102492516A (en) * | 2011-12-22 | 2012-06-13 | 李东霖 | Reclaimed coal |
| CN103214870A (en) * | 2013-04-28 | 2013-07-24 | 安徽农业大学 | Preparation method of environment-friendly wood-plastic composite material |
| CN103213234A (en) * | 2013-04-28 | 2013-07-24 | 安徽龙华竹业有限公司 | Method for preparing environment-friendly wood-plastic composite material by utilizing waste preservative wood |
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- 2013-11-13 CN CN201310571640.3A patent/CN103589475A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899349A (en) * | 2010-07-27 | 2010-12-01 | 昆明理工大学 | Method for preparing solid renewable clean fuel from agricultural and forestry waste/domestic garbage |
| CN102492516A (en) * | 2011-12-22 | 2012-06-13 | 李东霖 | Reclaimed coal |
| CN103214870A (en) * | 2013-04-28 | 2013-07-24 | 安徽农业大学 | Preparation method of environment-friendly wood-plastic composite material |
| CN103213234A (en) * | 2013-04-28 | 2013-07-24 | 安徽龙华竹业有限公司 | Method for preparing environment-friendly wood-plastic composite material by utilizing waste preservative wood |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768702A (en) * | 2017-10-26 | 2018-03-06 | 成都先进金属材料产业技术研究院有限公司 | The minimizing technology of copper ion in a kind of V electrolyte |
| WO2023077097A1 (en) * | 2021-10-29 | 2023-05-04 | Simonpietri Marie Joelle | Processing and gasification of construction and demolition materials |
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Application publication date: 20140219 |