CN110923034A - Production method of environment-friendly fuel - Google Patents
Production method of environment-friendly fuel Download PDFInfo
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- CN110923034A CN110923034A CN201911199785.9A CN201911199785A CN110923034A CN 110923034 A CN110923034 A CN 110923034A CN 201911199785 A CN201911199785 A CN 201911199785A CN 110923034 A CN110923034 A CN 110923034A
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- Prior art keywords
- fuel
- sludge
- environment
- straws
- mixture
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Classifications
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- 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
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
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- 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
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a production method of an environment-friendly fuel, which is specifically carried out according to the following steps: step 1, cutting, crushing and drying straws to obtain dry straw powder; step 2, adding a flocculating agent into the sludge, stirring and dehydrating, then adding straw powder, stirring uniformly, and deeply dehydrating to obtain a mixture; step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel; and 4, putting the solid fuel into a low-temperature negative-pressure dryer, and putting the dried solid fuel into a granulator for granulation to obtain a finished fuel product.
Description
Technical Field
The invention belongs to the technical field of fuels, and relates to a production method of an environment-friendly fuel.
Background
With the increasing demand of human energy, the non-renewable energy sources such as petroleum, coal, natural gas and the like which are widely used at present face the problem of increasing exhaustion, the energy and environment problems are always the central issues facing all countries in the world today and related to the sustainable development of national economy, in order to alleviate and gradually solve the problem, all countries in the world actively develop renewable new energy sources, in order to solve the energy crisis to be faced by human beings, renewable new energy sources are necessary to be developed to replace non-renewable fossil fuels, biomass refers to various organisms generated by photosynthesis by utilizing the atmosphere, water, land and the like, namely all living organic substances which can grow, biomass energy fuel is a crystalline low-carbon renewable energy source which is a new fuel with long combustion time, and the fuel is economical and practical, has no pollution to the environment, is a high-quality environment-friendly fuel for replacing conventional energy sources such as coal and the like, and is more and more widely paid attention to by people.
Disclosure of Invention
The invention aims to provide a production method of an environment-friendly fuel, which solves the problem of low combustion rate of the fuel in the prior art.
The invention adopts the technical scheme that the production method of the environment-friendly fuel is specifically carried out according to the following steps:
step 1, cutting straws, crushing the cut straws, and drying the crushed materials to obtain dry straw powder;
step 2, adding a flocculating agent into the sludge, stirring and dehydrating, then adding straw powder, stirring uniformly, and deeply dehydrating to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative pressure dryer, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
In step 1, the straw comprises corn straw, sorghum straw and cotton straw.
In the step 1, the water content of the dried straw powder is 30-40%.
In the step 2, the flocculating agent is aluminum sulfate, and the mass ratio of the sludge to the flocculating agent is 1: 0.001-0.003 of the total weight of the sludge and the straw powder is 1: 0.3-0.6.
In the step 2, the water content of the sludge after the first dehydration is 85-95%, and the water content of the sludge after the second dehydration is 60-70%.
In the step 3, the combustion improver is potassium oxide, the anti-slagging agent is a mixture of dolomite powder and aluminum trioxide, and the sulfur fixing agent is a mixture of ferric oxide, calcium carbonate and ethanol.
In the step 4, the drying temperature is 50-60 ℃, the drying time is 6-10 hours, and the water content of the dried solid fuel is 20-25%.
The invention has the advantages that the energy saving and environment protection are met, meanwhile, the combustion time is long, the combustion rate is high, the waste material is reasonably utilized, the cost is low, the mixed fuel prepared from the sludge and the straws is easy to combust, natural coal is replaced, the heat value of the solid fuel is obviously improved, the combustion efficiency is improved, the formability, durability, combustion heat value and combustion rate of particles are ensured, the fuel contains a combustion improver, the combustion rate is greatly improved, and the solid fuel contains a slagging resistant agent, has simple components and good slagging resistant effect; and the sulfur-fixing agent and the like are also contained, so that the environmental pollution can be reduced, the process is simple, and the method is suitable for industrial production.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The production method of the environment-friendly fuel specifically comprises the following steps:
step 1, cutting straws, crushing the cut straws, and drying the crushed materials to obtain dry straw powder;
step 2, adding a flocculating agent into the sludge, stirring and dehydrating, then adding straw powder, stirring uniformly, and deeply dehydrating to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative pressure dryer, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
In step 1, the straw comprises corn straw, sorghum straw and cotton straw.
In the step 1, the water content of the dried straw powder is 30-40%.
In the step 2, the flocculating agent is aluminum sulfate, and the mass ratio of the sludge to the flocculating agent is 1: 0.001-0.003 of the total weight of the sludge and the straw powder is 1: 0.3-0.6.
In the step 2, the water content of the sludge after the first dehydration is 85-95%, and the water content of the sludge after the second dehydration is 60-70%.
In the step 3, the combustion improver is potassium oxide, the anti-slagging agent is a mixture of dolomite powder and aluminum trioxide, and the sulfur fixing agent is a mixture of ferric oxide, calcium carbonate and ethanol.
In the step 4, the drying temperature is 50-60 ℃, the drying time is 6-10 hours, and the water content of the dried solid fuel is 20-25%.
The anti-slagging agent comprises dolomite powder and aluminum trioxide, wherein the dolomite powder accounts for 30-40% of the content of the anti-slagging agent, the sulfur fixing agent comprises a mixture of ferric oxide, calcium carbonate and ethanol, the calcium carbonate accounts for 30-40% of the content of the sulfur fixing agent, and the ferric oxide accounts for 10-20% of the content of the sulfur fixing agent.
At present, the treatment of sludge mainly comprises three aspects: firstly, stabilize, through means such as compost, digestion, do not further degrade after making sludge treatment, avoid secondary pollution, secondly innoxious, get rid of the pathogen, solidification, stable heavy metal guarantee ecological safety, thirdly the resourceization carries out resourceization comprehensive utilization when handling sludge.
The most critical problem is that the sludge directly enters the landfill site without pretreatment to cause engineering accidents of the landfill site, and in recent years, partial landfill sites begin to refuse to receive the sludge, so the mode of landfill treatment and sludge disposal faces a limit, the sludge is made into fertilizers or soil conditioners by utilizing plant nutrients such as nitrogen, phosphorus, potassium and the like in the sludge, the sludge is used for landscaping, soil improvement and agriculture, heavy metals in the sludge belong to sludge components which cannot be degraded, moreover, the sludge migrates very slowly in the soil, and heavy metals in the sludge are accumulated in the soil even after the sludge is composted, so that the disposal method for land utilization is subject to increasingly strict restrictions from the national perspective.
Example 1
The production method of the environment-friendly fuel specifically comprises the following steps:
step 1, cutting corn straws, sorghum straws and cotton straws, crushing the cut straws, and drying the crushed materials to obtain dried straw powder, wherein the water content of the dried straw powder is 36%;
step 2, adding aluminum sulfate into the sludge, wherein the mass ratio of the sludge to the flocculating agent is 1: 0.001, dehydrating after stirring until the water content is 90%, then adding straw powder, wherein the mass ratio of the sludge to the straw powder is 1:0.3, and deeply dehydrating after uniformly stirring until the water content is 65% to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative-pressure dryer, drying at 55 ℃ for 10 hours until the water content of the dried solid fuel is 24%, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
Example 2
The production method of the environment-friendly fuel specifically comprises the following steps:
cutting corn straws, sorghum straws and cotton straws, crushing the cut straws, and drying the crushed materials to obtain dried straw powder, wherein the water content of the dried straw powder is 30%;
step 2, adding aluminum sulfate into the sludge, wherein the mass ratio of the sludge to the flocculating agent is 1: 0.003 of stirring, dehydrating until the water content is 85 percent, then adding straw powder, wherein the mass ratio of the sludge to the straw powder is 1:0.6, stirring uniformly, and deeply dehydrating until the water content is 60 percent to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative-pressure dryer, drying at 60 ℃ for 6 hours until the water content of the dried solid fuel is 25%, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
Example 3
The production method of the environment-friendly fuel specifically comprises the following steps:
cutting corn straws, sorghum straws and cotton straws, crushing the cut straws, and drying the crushed materials to obtain dried straw powder, wherein the water content of the dried straw powder is 40%;
step 2, adding aluminum sulfate into the sludge, wherein the mass ratio of the sludge to the flocculating agent is 1: 0.001, dehydrating after stirring until the water content is 95%, then adding straw powder, wherein the mass ratio of the sludge to the straw powder is 1:0.3, and deeply dehydrating after uniformly stirring until the water content is 70% to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative-pressure dryer, drying at 50 ℃ for 10 hours, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product, wherein the water content of the dried solid fuel is 20%.
Example 4
The production method of the environment-friendly fuel specifically comprises the following steps:
cutting corn straws, sorghum straws and cotton straws, crushing the cut straws, and drying the crushed materials to obtain dried straw powder, wherein the water content of the dried straw powder is 40%;
step 2, adding aluminum sulfate into the sludge, wherein the mass ratio of the sludge to the flocculating agent is 1: 0.002, dewatering after stirring until the water content is 85%, then adding straw powder, wherein the mass ratio of the sludge to the straw powder is 1:0.5, and deeply dewatering after uniformly stirring until the water content is 70% to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative-pressure dryer, drying at 60 ℃ for 8 hours until the water content of the dried solid fuel is 20%, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
The fuel produced by the invention meets the requirements of energy conservation and environmental protection, and has the advantages of long combustion time, high combustion rate, reasonable utilization of waste materials, low cost, easy combustion of mixed fuel prepared from sludge and straws, natural coal substitution, obvious improvement of the heat value of solid fuel, combustion efficiency improvement, particle formability, durability, combustion heat value and combustion rate guarantee, combustion improver contained in the fuel, greatly improved combustion rate, anti-slagging agent contained in the fuel, simple components and good anti-slagging effect; and the sulfur-fixing agent and the like are also contained, so that the environmental pollution can be reduced, the process is simple, and the method is suitable for industrial production.
Claims (7)
1. The production method of the environment-friendly fuel is characterized by comprising the following steps:
step 1, cutting straws, crushing the cut straws, and drying the crushed materials to obtain dry straw powder;
step 2, adding a flocculating agent into the sludge, stirring and dehydrating, then adding straw powder, stirring uniformly, and deeply dehydrating to obtain a mixture;
step 3, adding a combustion improver, an anti-slagging agent and a sulfur fixing agent into the mixture, and uniformly stirring to obtain a solid fuel;
and 4, putting the solid fuel into a low-temperature negative pressure dryer, and putting the dried solid fuel into a granulator for granulation to obtain a fuel finished product.
2. The method for producing environment-friendly fuel as claimed in claim 1, wherein in the step 1, the straws comprise corn straws, sorghum straws and cotton straws.
3. The production method of the environment-friendly fuel as claimed in claim 1, wherein in the step 1, the water content of the dried straw powder is 30-40%.
4. The method for producing the environment-friendly fuel according to claim 1, wherein in the step 2, the flocculating agent is aluminum sulfate, and the mass ratio of the sludge to the flocculating agent is 1: 0.001-0.003 of the total weight of the sludge and the straw powder is 1: 0.3-0.6.
5. The method for producing the environment-friendly fuel as claimed in claim 1, wherein in the step 2, the water content of the sludge after the first dehydration is 85-95%, and the water content of the sludge after the second dehydration is 60-70%.
6. The method for producing the environment-friendly fuel as claimed in claim 1, wherein in the step 3, the combustion improver is potassium oxide, the anti-slagging agent is a mixture of dolomite powder and aluminum trioxide, and the sulfur fixing agent is a mixture of ferric oxide, calcium carbonate and ethanol.
7. The production method of the environment-friendly fuel as claimed in claim 1, wherein in the step 4, the drying temperature is 50-60 ℃, the drying time is 6-10 h, and the water content of the dried solid fuel is 20-25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199785.9A CN110923034A (en) | 2019-11-29 | 2019-11-29 | Production method of environment-friendly fuel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199785.9A CN110923034A (en) | 2019-11-29 | 2019-11-29 | Production method of environment-friendly fuel |
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| CN110923034A true CN110923034A (en) | 2020-03-27 |
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| CN201911199785.9A Pending CN110923034A (en) | 2019-11-29 | 2019-11-29 | Production method of environment-friendly fuel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517120A (en) * | 2011-12-27 | 2012-06-27 | 长春市奥地特科技有限公司 | Fuel coal additive |
| CN104059708A (en) * | 2014-01-23 | 2014-09-24 | 江山华隆能源开发有限公司 | Anti-slagging biomass solid granular fuel |
| CN105439409A (en) * | 2015-11-19 | 2016-03-30 | 光大环保技术研究院（深圳）有限公司 | Sludge and straw mixed squeezing treatment method and device |
-
2019
- 2019-11-29 CN CN201911199785.9A patent/CN110923034A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517120A (en) * | 2011-12-27 | 2012-06-27 | 长春市奥地特科技有限公司 | Fuel coal additive |
| CN104059708A (en) * | 2014-01-23 | 2014-09-24 | 江山华隆能源开发有限公司 | Anti-slagging biomass solid granular fuel |
| CN105439409A (en) * | 2015-11-19 | 2016-03-30 | 光大环保技术研究院（深圳）有限公司 | Sludge and straw mixed squeezing treatment method and device |
Non-Patent Citations (1)
| Title |
|---|
| 中国金属学会: "《2006年全国炼铁生产技术会议暨炼铁年会文集》", 30 April 2006 * |
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Application publication date: 20200327 |