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A technology of composite additives and briquette, which is applied in fuel additives, solid fuels, petroleum industry, etc., can solve the problems of high cost of briquette binder, restricting the development of briquette, and low strength of finished products.
Inactive Publication Date: 2010-06-23
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Problems solved by technology
[0002] The production of existing briquettes mostly adopts the mixed molding of organic liquid binder and pulverized coal. After forming, it is dried by special drying equipment to make briquettes. However, the briquettes produced by the existing drying process require equipment investment Large, a considerable amount of fuel coal is used in drying, and the self-pollution is serious, the strength of the finished product is low, and the cost of the binder used in the molded coal is high. During the combustion process, due to the collapse of the molded coal, the dust in the flue gas is large. Does not meet environmental protection standards when burned
The shortcomings of the above briquettes are mainly caused by the added compound additives, which seriously restrict the development of shaped coal. Therefore, it is imperative to improve and increase the added compound additives.
Method used
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Embodiment 1
[0011] A compound additive for briquette, which is made of the following raw materials: 15 parts of calcium lignosulfonate, 6 parts of sodium dihydrogen phosphate, 7 parts of calcium carbide, 15 parts of magnesium chloride, 5 parts of ammonium humate, hydroxide 15 parts of calcium, 2 parts of potassium nitrate, 0.5 parts of potassium permanganate, 0.2 parts of sodium nitrate, 3 parts of sodium chloride, 6 parts of kaolin, 7 parts of castor oil residue, 1 part of polyvinyl alcohol, 12 parts of water.
Embodiment 2
[0013] A compound additive for briquette, which is made of the following raw materials: 5 parts of calcium lignosulfonate, 1 part of sodium dihydrogen phosphate, 5 parts of magnesium chloride, 0.5 parts of ammonium humate, 5 parts of calcium hydroxide, nitric acid 6 parts of potassium, 3 parts of potassium permanganate, 2 parts of sodium nitrate, 6 parts of kaolin, 3 parts of castor oil residue, 0.2 parts of polyvinyl alcohol, 8 parts of water.
Embodiment 3
[0015] A compound additive for briquette, which is made of the following raw materials in parts by weight: 10 parts of calcium lignosulfonate, 2 parts of sodium dihydrogen phosphate, 3 parts of calcium carbide, 10 parts of magnesium chloride, 3 parts of ammonium humate 10 parts of calcium hydroxide, 4 parts of potassium nitrate, 1 part of potassium permanganate, 1 part of sodium nitrate, 2 parts of sodium chloride, 8 parts of kaolin, 5 parts of castor oil residue, 0.8 parts of polyvinyl alcohol, water 10 servings.
[0016] The preparation methods of the above three embodiments are as follows: uniformly mix the above-mentioned raw materials in parts by weight.
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Abstract
The invention relates to a compound additive for briquettes, which comprises the following raw materials by weight: 5-15 parts of calcium lignosulphonate, 1-6 parts of sodium dihydrogen phosphate, 0-7 parts of electric lime, 5-15 parts of magnesium chloride, 0.5-5 parts of humic acidic ammonium, 5-15 parts of calcium hydrate, 2-6 parts of potassium nitrate, 0.5-3 parts of potassium permanganate, 0.2-2 parts of sodium nitrate, 0-3 parts of sodium chloride, 6-12 parts of kaoline, 3-7 parts of castor seed oil residue, 0.2-1 parts of polyvinyl alcohol and 8-12 parts of water. A preparation method thereof comprises the step of only uniformly mixing the raw materials by weight. The briquettes prepared by mixing the compound additive, coal washery sludge and middlings can be free of drying so as to lower the cost, has the smoke suppression effect of 70-90 percent and can also achieve the environmental protection requirements through detection by Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences and Taiyuan environmental detection center.
Description
technical field [0001] The invention belongs to a composite auxiliary agent, in particular to a composite auxiliary agent used for molded coal. Background technique [0002] The production of existing briquettes mostly adopts the mixed molding of organic liquid binder and pulverized coal. After forming, it is dried by special drying equipment to make briquettes. However, the briquettes produced by the existing drying process require equipment investment Large, a considerable amount of fuel coal is used in drying, and the self-pollution is serious, the strength of the finished product is low, and the cost of the binder used in the molded coal is high. During the combustion process, due to the collapse of the molded coal, the dust in the flue gas is large. It does not meet environmental protection standards when burned. The shortcomings of the above briquettes are mainly caused by the added compound additives, which seriously restrict the development of shaped coals. Therefor...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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