CN111996052A - Special briquette for water treatment lime and preparation method thereof - Google Patents
Special briquette for water treatment lime and preparation method thereof Download PDFInfo
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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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
- C02F5/06—Softening water by precipitation of the hardness using calcium compounds
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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
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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
- C10L5/42—Solid fuels essentially based on materials of non-mineral origin on animal substances or products obtained therefrom, e.g. manure
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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
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/08—Drying or removing water
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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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/24—Mixing, stirring of fuel components
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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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/32—Molding or moulds
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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 special briquette for water treatment lime, which comprises the following components: bituminous coal, sawdust powder, rice hull powder, potassium permanganate, potassium perchlorate, shell powder, peanut meal, lignin, sodium stearate, aluminum powder, magnesium powder and a proper amount of water. The method for preparing the special briquette for water treatment lime comprises the following steps: (1) mixing sodium stearate with water, adding shell powder and lignin, mixing, standing, filtering, washing, drying and grinding to obtain modified shell powder; (2) stirring and mixing bituminous coal, sawdust powder, rice hull powder and peanut meal uniformly, adding lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, adding potassium permanganate, potassium perchlorate, aluminum powder and magnesium powder, mixing uniformly, placing into a forming machine for forming, drying, cooling to room temperature, and packaging to obtain the special coal for water-treated lime. The coal of the invention is burnt more fully and thoroughly, the combustion heat value can be improved, the utilization of waste can be realized by taking the soft coal, the saw dust and the like as main raw materials for combustion, and the environmental pollution is reduced.
Description
Technical Field
The invention belongs to the technical field of fire coal, and particularly relates to special briquette for water treatment lime and a preparation method thereof.
Background
In China, lime has wide sources and relatively low price, and is widely applied to the aspect of water treatment and is an essential medicament in the water treatment. The lime is a cheap water treatment agent, is used as a water softener, a pH regulator and the like, can remove phosphate and most heavy metals, can reduce BOD (biochemical oxygen demand), plays roles in killing bacteria and viruses, removing ammonia and the like, and has good effects. The lime with good performance can play a good role in water treatment. Lime is obtained by calcining in a lime kiln, coal is required to be added in the lime calcining process, and the problems of incomplete combustion, low combustion efficiency and the like still exist in the coal used in the lime preparation process at present due to the differences in material selection, proportion and processing technology, so that the application of the coal in lime production is limited.
Disclosure of Invention
The invention aims to provide a special briquette for efficiently burning water treatment lime and a preparation method thereof, aiming at the problems of low burning efficiency, incomplete burning and the like of the existing coal for producing the water treatment lime.
The scheme of the invention is realized by the following steps:
the special briquette for water treatment lime comprises the following components in parts by weight: 25-30 parts of bituminous coal, 25-30 parts of sawdust powder, 20-26 parts of rice hull powder, 12-16 parts of potassium permanganate, 12-16 parts of potassium perchlorate, 10-14 parts of shell powder, 9-12 parts of peanut meal, 8-10 parts of lignin, 8-10 parts of sodium stearate, 5-8 parts of aluminum powder, 5-8 parts of magnesium powder and a proper amount of water.
A method for preparing special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 8-10 parts of sodium stearate with water, then sequentially adding 10-14 parts of shell powder and 8-10 parts of lignin, stirring and mixing for 20-30 min at the speed of 150-200 r/min, standing for 30-40 min, then performing suction filtration by using absolute ethyl alcohol, washing, drying and grinding to obtain modified shell powder;
step two: stirring and mixing 25-30 parts of bituminous coal, 25-30 parts of sawdust powder, 20-26 parts of rice hull powder and 9-12 parts of peanut meal uniformly, adding 8-10 parts of lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, finally adding 12-16 parts of potassium permanganate, 12-16 parts of potassium perchlorate, 5-8 parts of aluminum powder and 5-8 parts of magnesium powder, mixing uniformly, putting into a forming machine, pressing and forming at 20-50 kPa, drying at 100-110 ℃, cooling to room temperature, and packaging to obtain the special-purpose coal for water-treated lime.
As a further illustration of the invention, the special briquette for the water treatment lime is cylindrical particles with the diameter of 5-10 mm and the length of 5-8 cm.
As a further explanation of the invention, the drying temperature in the first step is 100-120 ℃.
As further illustration of the invention, the particle size of the modified shell powder is 10-20 meshes.
The technical principle of the invention is as follows: the coal is easy to burn by taking bituminous coal, sawdust powder, rice hull powder and the like as main burning raw materials and waste materials, so that the cost can be reduced, and the added potassium permanganate and potassium perchlorate can release oxygen in the high-temperature combustion process, so that oxygen can be provided for the coal combustion process, more sufficient combustion of the coal is facilitated, and more heat value is released; the shell powder is micro-exploded under the action of high temperature, so that the coal burning structure is disintegrated, the circulation of oxygen released by potassium permanganate and potassium perchlorate is facilitated, the combustion is more complete, the shell powder can absorb pollutants such as sulfur dioxide released in the combustion process of the coal burning, the environmental pollution can be reduced, and in addition, the shell powder is a cheaper material, so that the cost of the coal can be saved; the aluminum powder and the magnesium powder have a combustion-supporting effect, so that the fire coal can be continuously combusted, the lignin can enable the components of the prepared fire coal to be mixed more uniformly, and the combustion effect is better.
The shell powder is modified in the preparation process, so that the dispersing performance of the shell powder can be improved, the shell powder modified by the sodium stearate can adsorb oil components in peanut meal, the loss of the oil components in the peanut meal is reduced, and the combustion efficiency of fire coal is improved; mix earlier components such as bituminous coal and sawdust powder through lignin and can improve the dispersibility of burning raw materials and make the fuel burn more evenly, then mix burning raw materials and potassium permanganate and potassium perchlorate and make potassium permanganate and potassium perchlorate disperse fully and provide even oxygen for the burning raw materials in the burning raw materials, make burning raw materials burn more fully thoroughly, improve the utilization ratio of fuel, release more calorific values, add the shell powder mixture at last, the shell powder is the calcium carbonate composition, can play certain structure supporting role to this fire coal in the combustion process, be difficult for making the fire coal collapse, also conveniently retrieve simultaneously.
The invention has the following good effects:
1. the coal prepared by the invention takes bituminous coal, sawdust powder, potassium permanganate, shell powder and the like as raw materials, and the components are mutually matched to ensure that the coal is combusted more fully and thoroughly, thereby improving the combustion heat value.
2. The coal prepared by the invention takes bituminous coal, sawdust powder, rice hull powder and the like as main raw materials for combustion, can realize waste utilization, changes waste into valuable, reduces the cost of the coal and reduces the pollution to the environment.
3. The fuel coal of the invention has reasonable and practical proportioning, can be used for producing lime products in the field of water treatment, has the advantages of strong applicability, low production cost, energy conservation, environmental protection and the like, and is suitable for being widely popularized and used.
Detailed Description
The present invention will be described in detail with reference to the following examples, which are not intended to limit the scope of the present invention.
Example 1:
the special briquette for water treatment lime of the embodiment comprises the following components in parts by weight: 25 parts of bituminous coal, 25 parts of sawdust powder, 20 parts of rice hull powder, 12 parts of potassium permanganate, 12 parts of potassium perchlorate, 10 parts of shell powder, 9 parts of peanut meal, 8 parts of lignin, 8 parts of sodium stearate, 5 parts of aluminum powder, 5 parts of magnesium powder and a proper amount of water.
The method for preparing the special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 8 parts of sodium stearate with water, then sequentially adding 10 parts of shell powder and 8 parts of lignin, stirring and mixing for 20min at the speed of 150r/min, standing for 30min, then performing suction filtration by using absolute ethyl alcohol, washing, drying at the temperature of 100 ℃, and grinding into modified shell powder with the particle size of 10 meshes;
step two: uniformly stirring and mixing 25 parts of bituminous coal, 25 parts of sawdust powder, 20 parts of rice hull powder and 9 parts of peanut meal, adding 8 parts of lignin and water, uniformly mixing, adding modified shell powder, uniformly mixing, finally adding 12 parts of potassium permanganate, 12 parts of potassium perchlorate, 5 parts of aluminum powder and 5 parts of magnesium powder, uniformly mixing, putting the mixture into a forming machine, pressing the mixture into cylindrical particles with the diameter of 5mm and the length of 5cm under 20kPa, drying the particles at 100 ℃, cooling to room temperature, and packaging to obtain the special molded coal for water-treated lime.
The coal prepared by the embodiment is used for combustion, and compared with the direct combustion of bituminous coal, coal powder and coal gangue, the combustion heat value is improved by 42.21%, the ash content of the coal is reduced by 89.46%, and SO is reduced2The emission is reduced by 71.34%, and the NOx emission is reduced by 83.47%.
Example 2:
the special briquette for water treatment lime of the embodiment comprises the following components in parts by weight: 30 parts of bituminous coal, 30 parts of sawdust powder, 26 parts of rice hull powder, 16 parts of potassium permanganate, 16 parts of potassium perchlorate, 14 parts of shell powder, 12 parts of peanut meal, 10 parts of lignin, 10 parts of sodium stearate, 8 parts of aluminum powder, 8 parts of magnesium powder and a proper amount of water.
The method for preparing the special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 10 parts of sodium stearate with water, then sequentially adding 14 parts of shell powder and 10 parts of lignin, stirring and mixing for 30min at the speed of 200r/min, standing for 40min, then performing suction filtration by using absolute ethyl alcohol, washing, drying at the temperature of 120 ℃, and grinding into modified shell powder with the particle size of 20 meshes;
step two: stirring and mixing 30 parts of bituminous coal, 30 parts of sawdust powder, 26 parts of rice hull powder and 12 parts of peanut meal uniformly, adding 10 parts of lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, finally adding 16 parts of potassium permanganate, 16 parts of potassium perchlorate, 8 parts of aluminum powder and 8 parts of magnesium powder, mixing uniformly, putting the mixture into a forming machine, pressing the mixture into cylindrical particles with the diameter of 10mm and the length of 8cm under 50kPa, drying the particles at 110 ℃, cooling to room temperature, and packaging to obtain the special molded coal for water-treated lime.
The coal prepared by the embodiment is combusted, and compared with direct combustion of bituminous coal, coal powder and coal gangue, the combustion heat value is improved by 42.35%, the ash content of the coal is reduced by 90.18%, and SO is reduced2The emission is reduced by 70.89%, and the NOx emission is reduced by 83.25%.
Example 3:
the special briquette for water treatment lime of the embodiment comprises the following components in parts by weight: 28 parts of bituminous coal, 28 parts of sawdust powder, 24 parts of rice hull powder, 14 parts of potassium permanganate, 14 parts of potassium perchlorate, 12 parts of shell powder, 11 parts of peanut meal, 9 parts of lignin, 9 parts of sodium stearate, 7 parts of aluminum powder, 7 parts of magnesium powder and a proper amount of water.
The method for preparing the special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 9 parts of sodium stearate with water, then sequentially adding 12 parts of shell powder and 9 parts of lignin, stirring and mixing for 25min at the rotating speed of 175r/min, standing for 35min, then performing suction filtration by using absolute ethyl alcohol, washing, drying at the temperature of 110 ℃, and grinding into modified shell powder with the particle size of 12 meshes;
step two: stirring and mixing 28 parts of bituminous coal, 28 parts of sawdust powder, 24 parts of rice hull powder and 11 parts of peanut meal uniformly, adding 9 parts of lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, finally adding 14 parts of potassium permanganate, 14 parts of potassium perchlorate, 7 parts of aluminum powder and 7 parts of magnesium powder, mixing uniformly, putting the mixture into a forming machine, pressing the mixture into cylindrical particles with the diameter of 8mm and the length of 6cm under 35kPa, drying the particles at 105 ℃, cooling to room temperature, and packaging to obtain the special molded coal for water-treated lime.
The coal prepared by the embodiment is combusted, and compared with direct combustion of bituminous coal, coal powder and coal gangue, the combustion heat value is improved by 43.20%, the ash content of the coal is reduced by 90.16%, and SO is reduced2DischargingThe amount is reduced by 71.33%, and the NOx emission is reduced by 83.24%.
Example 4:
the special briquette for water treatment lime of the embodiment comprises the following components in parts by weight: 26 parts of bituminous coal, 28 parts of sawdust powder, 25 parts of rice hull powder, 12 parts of potassium permanganate, 15 parts of potassium perchlorate, 11 parts of shell powder, 10 parts of peanut meal, 10 parts of lignin, 9 parts of sodium stearate, 5 parts of aluminum powder, 6 parts of magnesium powder and a proper amount of water.
The method for preparing the special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 9 parts of sodium stearate with water, then sequentially adding 11 parts of shell powder and 10 parts of lignin, stirring and mixing for 22min at the speed of 180r/min, standing for 36min, then performing suction filtration by using absolute ethyl alcohol, washing, drying at the temperature of 105 ℃, and grinding into modified shell powder with the particle size of 18 meshes;
step two: the method comprises the following steps of uniformly stirring and mixing 26 parts of bituminous coal, 28 parts of sawdust powder, 25 parts of rice hull powder and 10 parts of peanut meal, adding 10 parts of lignin and water, uniformly mixing, adding modified shell powder, uniformly mixing, finally adding 12 parts of potassium permanganate, 15 parts of potassium perchlorate, 5 parts of aluminum powder and 6 parts of magnesium powder, uniformly mixing, putting the mixture into a forming machine, pressing the mixture into cylindrical particles with the diameter of 6mm and the length of 6cm under the pressure of 30kPa, drying the particles at 108 ℃, cooling the particles to room temperature, and packaging to obtain the special-purpose coal for water-treated lime.
The coal prepared by the embodiment is used for combustion, and compared with direct combustion of bituminous coal, coal powder and coal gangue, the combustion heat value is improved by 42.51%, the ash content of the coal is reduced by 89.57%, and SO is reduced2The emission is reduced by 71.49%, and the NOx emission is reduced by 82.88%.
Example 5:
the special briquette for water treatment lime of the embodiment comprises the following components in parts by weight: 29 parts of bituminous coal, 27 parts of sawdust powder, 21 parts of rice hull powder, 14 parts of potassium permanganate, 15 parts of potassium perchlorate, 13 parts of shell powder, 10 parts of peanut meal, 8 parts of lignin, 10 parts of sodium stearate, 6 parts of aluminum powder, 6 parts of magnesium powder and a proper amount of water.
The method for preparing the special briquette for water treatment lime comprises the following steps:
the method comprises the following steps: mixing 10 parts of sodium stearate with water, sequentially adding 13 parts of shell powder and 8 parts of lignin, stirring and mixing for 28min at the speed of 160r/min, standing for 34min, performing suction filtration by using absolute ethyl alcohol, washing, drying at the temperature of 115 ℃, and grinding into 16-mesh modified shell powder;
step two: stirring and mixing 29 parts of bituminous coal, 27 parts of sawdust powder, 21 parts of rice hull powder and 10 parts of peanut meal uniformly, adding 8 parts of lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, finally adding 14 parts of potassium permanganate, 15 parts of potassium perchlorate, 6 parts of aluminum powder and 6 parts of magnesium powder, mixing uniformly, putting the mixture into a forming machine, pressing the mixture into cylindrical particles with the diameter of 9mm and the length of 7cm under 40kPa, drying the particles at 100 ℃, cooling to room temperature, and packaging to obtain the special molded coal for water-treated lime.
The coal prepared by the embodiment is combusted, and compared with direct combustion of bituminous coal, coal powder and coal gangue, the combustion heat value is improved by 43.15%, the ash content of the coal is reduced by 91.04%, and SO is reduced2The emission is reduced by 72.56%, and the NOx emission is reduced by 82.49%.
The coal for water treatment prepared by the invention has high combustion heat, good combustion effect and less pollution.
The above-described embodiments of the present invention are intended to be illustrative only and not limiting, and the scope of the invention is indicated in the claims, along with the full range of ingredients, ratios of ingredients, and process parameters of manufacture, and the above description is not intended to be exhaustive of the invention, and thus, any changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein.
Claims (5)
1. The special briquette for water treatment lime is characterized by comprising the following components in parts by weight: 25-30 parts of bituminous coal, 25-30 parts of sawdust powder, 20-26 parts of rice hull powder, 12-16 parts of potassium permanganate, 12-16 parts of potassium perchlorate, 10-14 parts of shell powder, 9-12 parts of peanut meal, 8-10 parts of lignin, 8-10 parts of sodium stearate, 5-8 parts of aluminum powder, 5-8 parts of magnesium powder and a proper amount of water.
2. The method for preparing the special briquette for water treatment lime is characterized by comprising the following steps:
the method comprises the following steps: mixing 8-10 parts of sodium stearate with water, then sequentially adding 10-14 parts of shell powder and 8-10 parts of lignin, stirring and mixing for 20-30 min at the speed of 150-200 r/min, standing for 30-40 min, then performing suction filtration by using absolute ethyl alcohol, washing, drying and grinding to obtain modified shell powder;
step two: stirring and mixing 25-30 parts of bituminous coal, 25-30 parts of sawdust powder, 20-26 parts of rice hull powder and 9-12 parts of peanut meal uniformly, adding 8-10 parts of lignin and water, mixing uniformly, adding modified shell powder, mixing uniformly, finally adding 12-16 parts of potassium permanganate, 12-16 parts of potassium perchlorate, 5-8 parts of aluminum powder and 5-8 parts of magnesium powder, mixing uniformly, putting into a forming machine, pressing and forming at 20-50 kPa, drying at 100-110 ℃, cooling to room temperature, and packaging to obtain the special-purpose coal for water-treated lime.
3. The method for preparing the special briquette for water treatment lime according to claim 2, wherein the special briquette for water treatment lime is cylindrical particles with the diameter of 5-10 mm and the length of 5-8 cm.
4. The method for preparing the special briquette for water-treated lime according to claim 2, wherein the drying temperature in the first step is 100-120 ℃.
5. The method for preparing the special briquette for water-treated lime according to claim 2, wherein the particle size of the modified shell powder is 10-20 meshes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010660778.0A CN111996052A (en) | 2020-07-10 | 2020-07-10 | Special briquette for water treatment lime and preparation method thereof |
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| CN202010660778.0A CN111996052A (en) | 2020-07-10 | 2020-07-10 | Special briquette for water treatment lime and preparation method thereof |
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| CN111996052A true CN111996052A (en) | 2020-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114042508A (en) * | 2021-11-16 | 2022-02-15 | 江苏省海洋资源开发研究院(连云港) | Preparation method of shell powder-based preservative film |
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