CN113061476B - Novel PMC solid fuel - Google Patents
Novel PMC solid fuel Download PDFInfo
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- CN113061476B CN113061476B CN202110299077.3A CN202110299077A CN113061476B CN 113061476 B CN113061476 B CN 113061476B CN 202110299077 A CN202110299077 A CN 202110299077A CN 113061476 B CN113061476 B CN 113061476B
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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
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
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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
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
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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
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/34—Other details of the shaped fuels, e.g. briquettes
- C10L5/36—Shape
- C10L5/363—Pellets or granulates
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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
- C10L5/442—Wood or forestry waste
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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
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
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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
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
- C10L9/12—Oxidation means, e.g. oxygen-generating compounds
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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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Abstract
The invention relates to the technical field of preparation of solid fuels for equipment, in particular to a novel PMC solid fuel, which comprises the following raw materials in parts by mass: 50-75 parts of lignite, 20-40 parts of wood powder, 2-5 parts of sodium chloride, 1-5 parts of an oxidant, 1-3 parts of a composite sulfur-fixing agent, 1-3 parts of a catalyst, 2-3 parts of a smoke suppressor and 1-5 parts of a hydrophobic material, wherein the preparation method comprises the following steps: s1, weighing the raw materials according to the amount for later use, S2, removing impurities through screening, sequentially pouring the raw materials into a stirrer, uniformly stirring and taking out the raw materials to obtain a material A, S3, grinding the material A into powder through a grinder, sending the powder into a dryer for drying, taking out the powder after drying to obtain a material B, and S4, putting the material B into a granulator, and discharging the material B from a discharge hole to obtain the granular PMC solid fuel. The invention not only can improve the sulfur fixation effect of the PMC solid fuel, but also can improve the moisture resistance of the PMC solid fuel, and is beneficial to long-time storage and long-distance transportation.
Description
Technical Field
The invention relates to the technical field of preparation of solid fuels for equipment, in particular to a novel PMC solid fuel.
Background
The PMC solid fuel can promote PMC charcoal to burn fully, and plays a role in burning and energy saving. The PMC solid fuel contains an oxidant for providing an oxygen source, and can decompose oxygen at high temperature to promote the PMC to be fully combusted. In addition, the catalyst does not contain corrosive substances, can effectively reduce the dissociation energy of oxygen and the activation energy required by carbon combustion, strengthens the combustion of the PMC, and plays a role in strong combustion and energy conservation.
However, during the use of the fuel, it is found that the fuel is easily affected with moisture when the fuel is transported over a long distance or is in a humid environment, the combustion operation of the fuel is affected, and the sulfur fixing effect of the solid fuel is general during the combustion process, so a novel PMC solid fuel is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a novel PMC solid fuel.
A novel PMC solid fuel comprises the following raw materials in parts by mass: 50-75 parts of lignite, 20-40 parts of wood powder, 2-5 parts of sodium chloride, 1-5 parts of an oxidant, 1-3 parts of a composite sulfur-fixing agent, 1-3 parts of a catalyst, 2-3 parts of a smoke suppressor and 1-5 parts of a hydrophobic material.
Preferably, the granularity of the wood powder is 35-45 meshes, and the water content of the wood powder is less than 10%.
Preferably, the catalyst is any one of aluminum oxide, ferric chloride and ferric oxide, and the oxidant is any one of potassium permanganate, potassium chlorate and potassium perchlorate.
Preferably, the smoke suppressor consists of polyethylene glycol and water, and the mass ratio of the polyethylene glycol to the water is 3: 1.
Preferably, the compound sulfur-fixing agent is prepared by mixing any one of calcium hydroxide, calcium carbonate or calcium oxide as a base material and sodium alginate as a pore-forming agent in a mass ratio of 3: 1.
Preferably, the hydrophobic material is formed by mixing polysiloxane and 1-amide butyl-3-ethylimidazole bistrifluoromethylsulfonic acid imine according to the mass ratio of 3: 1.
Preferably, the preparation method of the 1-amide butyl-3-ethylimidazole bistrifluoromethylsulfonic acid imine comprises the following steps: dissolving [ CH2CONHBuEIM ] [ Cl ] in distilled water, adding bis (trifluoromethyl) imine sulfonic lithium with equal molar mass, standing for layering, washing lower layer ionic liquid with deionized water to remove chloride ions, and drying at 85 ℃ under high vacuum state to obtain solid 1-amidobutyl-3-ethylimidazole bis (trifluoromethyl) imine sulfonate.
A preparation method of a novel PMC solid fuel comprises the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, and the raw materials are uniformly stirred and taken out to obtain a material A;
s3, grinding the material A into powder by a grinder, sending the powder into a dryer for drying, and taking out the dried powder to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel.
Preferably, the working speed of the stirrer is 1000-1200 r/min, the stirring time is 20-30 min, the working speed of the grinder is 1000-1300 r/min, the grinding time is 20-35 min, the drying temperature of the dryer is 280-320 ℃, and the drying time is 30-45 min.
Preferably, the particle size of the PMC solid fuel is 20-30 mm, and the water content of the PMC solid fuel is less than or equal to 3%.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, sodium chloride, an oxidant, a sulfur fixing agent and a catalyst are used as combustion aids of the PMC solid fuel, the sulfur fixing agent is compounded, and a proper amount of sodium alginate is added into the sulfur fixing agent to generate pores in the PMC solid fuel, thereby being beneficial to improving the sulfur fixing effect of the sulfur fixing agent.
2. In the invention, a proper amount of 1-amido butyl-3-ethylimidazole bistrifluoromethyl sulfonic acid imine is added into polysiloxane and mixed to prepare a hydrophobic material, which is beneficial to improving the moisture resistance of the PMC solid fuel and is convenient for long-time storage and long-distance transportation.
In conclusion, the sulfur fixation effect of the PMC solid fuel can be improved, the moisture resistance of the PMC solid fuel can be improved, and long-time storage and long-distance transportation are facilitated.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
A novel PMC solid fuel comprises the following raw materials in parts by mass: 50-75 parts of lignite, 20-40 parts of wood powder, 2-5 parts of sodium chloride, 1-5 parts of an oxidant, 1-3 parts of a composite sulfur-fixing agent, 1-3 parts of a catalyst, 2-3 parts of a smoke suppressor and 1-5 parts of a hydrophobic material.
The granularity of the wood powder is 35-45 meshes, and the water content of the wood powder is less than 10%; the catalyst is any one of alumina, ferric chloride and ferric oxide, preferably alumina; the oxidant is any one of potassium permanganate, potassium chlorate and potassium perchlorate, preferably potassium chlorate; the smoke suppressor consists of polyethylene glycol and water, and the mass ratio of the polyethylene glycol to the water is 3: 1.
Furthermore, the compound sulfur-fixing agent is prepared by mixing any one of calcium hydroxide, calcium carbonate or calcium oxide as a base material, preferably calcium hydroxide, and sodium alginate as a pore-forming agent in a mass ratio of 3: 1.
Furthermore, the hydrophobic material is formed by mixing polysiloxane and 1-amido butyl-3-ethylimidazole bistrifluoromethyl sulfonic acid imine according to the mass ratio of 3: 1;
the preparation method of the 1-amido butyl-3-ethylimidazole bistrifluoromethyl sulfonic acid imine comprises the following steps: dissolving [ CH2CONHBuEIM ] [ Cl ] in distilled water, adding bis (trifluoromethyl) imine sulfonic lithium with equal molar mass, standing for layering, washing lower layer ionic liquid with deionized water to remove chloride ions, and drying at 85 ℃ under high vacuum state to obtain solid 1-amidobutyl-3-ethylimidazole bis (trifluoromethyl) imine sulfonate.
The synthesis method of [ CH2CONHBuEIM ] [ Cl ] is as follows:
dropwise adding N-ethylimidazole (selected from Shanghai Zhuo Jian chemical Co., Ltd.) into a flask filled with butyrylchloride with a molar mass ratio of 1:1.1 at 85 ℃, using acetonitrile as a reaction solvent, and after dropwise adding, continuously heating and stirring for 24 hours to completely react; after the reaction is finished, recrystallizing the product by using ethyl acetate and acetonitrile solvent (the volume ratio is 1:1), and drying the crystal for 48 hours at 85 ℃ under reduced pressure and vacuum to obtain 1-amide butyl-3-ethylimidazole chlorine salt [ CH2CONHBuEIM ] [ Cl ];
a preparation method of a novel PMC solid fuel comprises the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, pouring the raw materials into a stirrer in sequence, stirring for 20-30 min at the rotating speed of 1000-1200 r/min, uniformly stirring, and taking out to obtain a material A;
s3, grinding the material A into powder by a grinder at the rotating speed of 1000-1300 r/min for 20-35 min, drying the powder in a dryer at the drying temperature of 280-320 ℃ for 30-45 min, and taking out the dried powder to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel with the water content of less than or equal to 3% and the grain size of 20-30 mm.
Example 1:
the composite material comprises the following raw materials in parts by mass: 50 parts of lignite, 20 parts of wood powder, 2 parts of sodium chloride, 1 part of potassium chlorate, 1 part of composite sulfur-fixing agent, 1 part of aluminum oxide, 2 parts of smoke suppressor and 1 part of hydrophobic material.
Example 2:
the composite material comprises the following raw materials in parts by mass: 63 parts of lignite, 30 parts of wood powder, 4 parts of sodium chloride, 3 parts of potassium chlorate, 2 parts of a composite sulfur-fixing agent, 2 parts of alumina, 2.5 parts of a smoke suppressor and 3 parts of a hydrophobic material.
Example 3:
the composite material comprises the following raw materials in parts by mass: 75 parts of lignite, 40 parts of wood powder, 5 parts of sodium chloride, 5 parts of potassium chlorate, 3 parts of a composite sulfur-fixing agent, 3 parts of aluminum oxide, 3 parts of a smoke suppressor and 5 parts of a hydrophobic material.
In the above examples 1 to 3, the PMC solid fuel was prepared by the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, stirred for 25min at the rotating speed of 1000r/min, and taken out after uniform stirring to obtain a material A;
s3, grinding the material A for 28min into powder by a grinding machine at the rotating speed of 1200r/min, sending the powder into a dryer for drying at the drying temperature of 300 ℃ for 38min, and taking out the dried material A to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel with the water content of less than or equal to 3% and the grain size of 20-30 mm.
Test one: measurement of vulcanization Effect on PMC solid Fuel
Comparative example 1:
the composite material comprises the following raw materials in parts by mass: 50 parts of lignite, 20 parts of wood powder, 2 parts of sodium chloride, 1 part of potassium chlorate, 1 part of sulfur-fixing agent, 1 part of alumina, 2 parts of smoke suppressor and 1 part of hydrophobic material.
Comparative example 2:
the composite material comprises the following raw materials in parts by mass: 63 parts of lignite, 30 parts of wood powder, 4 parts of sodium chloride, 3 parts of potassium chlorate, 2 parts of sulfur fixing agent, 2 parts of alumina, 2.5 parts of smoke suppressor and 3 parts of hydrophobic material.
Comparative example 3:
the composite material comprises the following raw materials in parts by mass: 75 parts of lignite, 40 parts of wood powder, 5 parts of sodium chloride, 5 parts of potassium chlorate, 3 parts of sulfur fixing agent, 3 parts of aluminum oxide, 3 parts of smoke suppressor and 5 parts of hydrophobic material.
In comparative examples 1 to 3, the sulfur-fixing agent is calcium hydroxide, sodium alginate is not contained, and the PMC solid fuel is prepared by the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, stirred for 25min at the rotating speed of 1000r/min, and taken out after uniform stirring to obtain a material A;
s3, grinding the material A for 28min into powder by a grinding machine at the rotating speed of 1200r/min, sending the powder into a dryer for drying at the drying temperature of 300 ℃ for 38min, and taking out the dried material A to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel with the water content of less than or equal to 3% and the grain size of 20-30 mm.
Taking the solid fuels in the above examples 1-3 and comparative examples 1-3, and testing the effective sulfur-fixing rate of the sulfur-fixing agent for the fire coal at a non-used temperature and SO in the process of the fire coal according to GB/T31098-2014 evaluation method for sulfur-fixing effect of the fire coal2The main release temperature is 800-1000 ℃, and when the release temperature exceeds 1000 ℃, the effective component CaO in the sulfur fixing agent can affect the sulfur fixing effect due to large-area sintering, so the environment at 800-1000 ℃ is only used as the test temperature, and the test data is shown in the following table:
from the above table test data, it can be seen that:
the effective sulfur fixing rate of the solid fuel in the examples 1-3 at 800 ℃ and 850 ℃ is grade I (not less than 40%), and the effective sulfur fixing rate of the solid fuel in the comparative examples 1-3 at 800 ℃ and 850 ℃ is grade II (between 15% and 40%);
secondly, the effective sulfur fixing rate of the solid fuel in the examples 1-3 is grade I (not less than 40%) at 900 ℃, the effective sulfur fixing rate is grade II (between 10-40%) at 950 ℃, and the effective sulfur fixing rates of the solid fuel in the comparative examples 1-3 are grade II (between 10-40%) at 900 ℃ and 850 ℃;
③ the effective sulfur-fixing rate of the solid fuel in the examples 1-3 and the comparative examples 1-3 is class II (between 10-30%) at 1000 ℃, but the effective sulfur-fixing rate of the comparative examples is lower than that of the examples.
From the above judgment, it can be seen that, compared with the PMC solid fuels in comparative examples 1 to 3, the PMC solid fuels in examples 1 to 3 have the raw material formula added with sodium alginate, so that the sulfur fixation efficiency of the PMC solid fuels can be effectively improved.
And (2) test II: measurement of moisture resistance of PMC solid Fuel
Comparative example 4:
the composite material comprises the following raw materials in parts by mass: 50 parts of lignite, 20 parts of wood powder, 2 parts of sodium chloride, 1 part of potassium chlorate, 1 part of composite sulfur-fixing agent, 1 part of aluminum oxide, 2 parts of smoke suppressor and 1 part of hydrophobic material.
Comparative example 5:
the composite material comprises the following raw materials in parts by mass: 63 parts of lignite, 30 parts of wood powder, 4 parts of sodium chloride, 3 parts of potassium chlorate, 2 parts of a composite sulfur-fixing agent, 2 parts of alumina, 2.5 parts of a smoke suppressor and 3 parts of a hydrophobic material.
Comparative example 6:
the composite material comprises the following raw materials in parts by mass: 75 parts of lignite, 40 parts of wood powder, 5 parts of sodium chloride, 5 parts of potassium chlorate, 3 parts of a composite sulfur-fixing agent, 3 parts of aluminum oxide, 3 parts of a smoke suppressor and 5 parts of a hydrophobic material.
In comparative examples 4 to 6 above, the hydrophobic materials were all polysiloxanes, 1-amidobutyl-3-ethylimidazole bistrifluoromethylsulfonic acid imine was not contained, and the PMC solid fuel was prepared by the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, stirred for 25min at the rotating speed of 1000r/min, and taken out after uniform stirring to obtain a material A;
s3, grinding the material A for 28min into powder by a grinding machine at the rotating speed of 1200r/min, sending the powder into a dryer for drying at the drying temperature of 300 ℃ for 38min, and taking out the dried material A to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel with the water content of less than or equal to 3% and the grain size of 20-30 mm.
Reference example 1:
the composite material comprises the following raw materials in parts by mass: 50 parts of lignite, 20 parts of wood powder, 2 parts of sodium chloride, 1 part of potassium chlorate, 1 part of composite sulfur-fixing agent, 1 part of aluminum oxide and 2 parts of smoke suppressor.
Reference example 2:
the composite material comprises the following raw materials in parts by mass: 63 parts of lignite, 30 parts of wood powder, 4 parts of sodium chloride, 3 parts of potassium chlorate, 2 parts of composite sulfur-fixing agent, 2 parts of aluminum oxide and 2.5 parts of smoke suppressor.
Reference example 3:
the composite material comprises the following raw materials in parts by mass: 75 parts of lignite, 40 parts of wood powder, 5 parts of sodium chloride, 5 parts of potassium chlorate, 3 parts of a composite sulfur-fixing agent, 3 parts of aluminum oxide and 3 parts of a smoke suppressor.
In the reference examples 1 to 3, the PMC solid fuel was prepared without adding any hydrophobic material, and by the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, stirred for 25min at the rotating speed of 1000r/min, and taken out after uniform stirring to obtain a material A;
s3, grinding the material A for 28min into powder by a grinding machine at the rotating speed of 1200r/min, sending the powder into a dryer for drying at the drying temperature of 300 ℃ for 38min, and taking out the dried material A to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular PMC solid fuel with the water content of less than or equal to 3% and the grain size of 20-30 mm.
The solid fuels prepared in examples 1 to 3, comparative examples 4 to 6, and reference examples 1 to 3 were used to carry out the following tests:
weighing the solid fuel, and recording as M1;
secondly, placing the solid fuel in a test box with humidity of 85%, taking out the solid fuel after one week, weighing the solid fuel again, and recording the weight as M2;
③ the weight gain was calculated as (M2-M1)/M1 and reported in the following table:
as can be seen from the above test data, the solid fuels of examples 1 to 3 had a weight gain of less than 8% after being left in a humid environment for one week, the solid fuels of comparative examples 4 to 6 had a weight gain of less than 20% after being left in a humid environment for one week, and the solid fuels of reference examples 1 to 3 had a weight gain of as high as 30% after being left in a humid environment for one week; therefore, the hydrophobic material prepared by mixing polysiloxane and 1-amido butyl-3-ethylimidazole bistrifluoromethyl sulfonic acid imine is added into the raw materials, so that the moisture resistance of the PMC solid fuel can be improved more remarkably, and the PMC solid fuel is more beneficial to long-time storage and long-distance transportation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The solid fuel is characterized by comprising the following raw materials in parts by mass: 50-75 parts of lignite, 20-40 parts of wood powder, 2-5 parts of sodium chloride, 1-5 parts of an oxidant, 1-3 parts of a composite sulfur-fixing agent, 1-3 parts of a catalyst, 2-3 parts of a smoke suppressor and 1-5 parts of a hydrophobic material;
the catalyst is any one of aluminum oxide, ferric chloride and ferric oxide, and the oxidant is any one of potassium permanganate, potassium chlorate and potassium perchlorate;
the smoke suppressor consists of polyethylene glycol and water;
the compound sulfur-fixing agent takes any one of calcium hydroxide, calcium carbonate or calcium oxide as a base material and sodium alginate as a pore-forming agent;
the hydrophobic material is formed by mixing polysiloxane and 1-amido butyl-3-ethylimidazole bistrifluoromethyl sulfonic acid imine according to the mass ratio of 3: 1;
the preparation method of the solid fuel comprises the following steps:
s1, weighing the raw materials according to the amount for later use;
s2, after impurities are removed through screening, the raw materials are poured into a stirrer in sequence, and the raw materials are uniformly stirred and taken out to obtain a material A;
s3, grinding the material A into powder by a grinder, sending the powder into a dryer for drying, and taking out the dried powder to obtain a material B;
and S4, putting the taken material B into a granulator, and discharging the material B through a discharge hole to obtain the granular solid fuel.
2. The solid fuel of claim 1, wherein the wood flour has a particle size of 35 to 45 mesh and a water content of less than 10%.
3. The solid fuel according to claim 1, wherein the smoke suppressor is composed of polyethylene glycol and water, and the mass ratio of the polyethylene glycol to the water is 3: 1.
4. The solid fuel of claim 1, wherein the composite sulfur-fixing agent is prepared by mixing any one of calcium hydroxide, calcium carbonate or calcium oxide as a base material and sodium alginate as a pore-forming agent in a mass ratio of 3: 1.
5. The solid fuel according to claim 1, wherein the preparation method of the 1-amidobutyl-3-ethylimidazole bistrifluoromethylsulfonic acid imine comprises the following steps: dissolving [ CH2CONHBuEIM ] [ Cl ] in distilled water, adding bis (trifluoromethyl) imine sulfonic lithium with equal molar mass, standing for layering, washing lower layer ionic liquid with deionized water to remove chloride ions, and drying at 85 ℃ under high vacuum state to obtain solid 1-amidobutyl-3-ethylimidazole bis (trifluoromethyl) imine sulfonate.
6. The solid fuel of claim 1, wherein the operating speed of the stirrer is 1000-1200 r/min, the stirring time is 20-30 min, the operating speed of the grinder is 1000-1300 r/min, the grinding time is 20-35 min, the drying temperature of the dryer is 280-320 ℃, and the drying time is 30-45 min.
7. The solid fuel of claim 1, wherein the solid fuel has a particle size of 20-30 mm and a water content of 3% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299077.3A CN113061476B (en) | 2021-03-20 | 2021-03-20 | Novel PMC solid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299077.3A CN113061476B (en) | 2021-03-20 | 2021-03-20 | Novel PMC solid fuel |
Publications (2)
| Publication Number | Publication Date |
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| CN113061476A CN113061476A (en) | 2021-07-02 |
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| CN1368542A (en) * | 2001-02-08 | 2002-09-11 | 金熙濬 | Biologically cleaning briquette as solid fuel |
| WO2013113026A2 (en) * | 2012-01-26 | 2013-08-01 | Mph Energy Llc | Mitigation of harmful combustion emissions using sorbent containing engineered fuel feedstocks |
| CN104263444A (en) * | 2014-09-28 | 2015-01-07 | 上海理工大学 | Solid fuel and production method thereof |
| CN110903882A (en) * | 2019-12-13 | 2020-03-24 | 吉林同鑫热力集团股份有限公司 | Coal additive |
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| JPS5859290A (en) * | 1981-10-06 | 1983-04-08 | Internatl Monopori Assoc:Kk | Preparation of water-resistant briquet |
| WO2009111335A2 (en) * | 2008-02-29 | 2009-09-11 | Greatpoint Energy, Inc. | Coal compositions for catalytic gasification |
| CN109097145A (en) * | 2012-05-11 | 2018-12-28 | 谐和能源有限责任公司 | Generate the system and method with the engineering fuel feedstocks of reduced chlorinity |
| SG11201804712PA (en) * | 2015-12-04 | 2018-07-30 | Bio Bean Ltd | Biofuel |
| CN111197738A (en) * | 2020-03-05 | 2020-05-26 | 河北烈焰机械工程有限公司 | PMC combustion system |
| CN112226254B (en) * | 2020-09-25 | 2022-10-11 | 梵境新能源科技(浙江)有限公司 | Method for cooperatively treating waste circuit board and printing and dyeing wastewater |
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| WO2013113026A2 (en) * | 2012-01-26 | 2013-08-01 | Mph Energy Llc | Mitigation of harmful combustion emissions using sorbent containing engineered fuel feedstocks |
| CN104263444A (en) * | 2014-09-28 | 2015-01-07 | 上海理工大学 | Solid fuel and production method thereof |
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