Method for producing moulded coal by oil-rich coal with low-ash low-sulfur low-phosphor and high-heat productivity

A high calorific value, briquette technology, applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of waste of oil and gas resources, environmental pollution, irritation, etc., and achieve the effect of reducing smoke and dust emissions, reducing pollution emissions, and less pollution emissions

Inactive Publication Date: 2009-06-03
杨兴平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this patent adds coal powder and coal gangue when making anthracite briquettes, it will still cause a waste of oil and gas resources and bring pollution to the environment; and the binder needs to add sodium hydroxide and polyacrylamide, The manufacturing process will be very irritating to the human body, easily lead to danger, and will produce new pollution when used

Method used

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  • Method for producing moulded coal by oil-rich coal with low-ash low-sulfur low-phosphor and high-heat productivity

Examples

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specific Embodiment 1

[0011] Specific Example 1: A method for producing environmentally friendly anthracite briquettes with low-ash, low-sulfur, low-phosphorus, high-calorific oil-rich coal, using bituminous coal powder as raw material, and undergoing low-temperature dry distillation at 700°C for 2 hours Finally, tar, gas and semi-coke powder are produced, and the semi-coke powder is pulverized, added with binders and additives, mixed, extruded, and then dried to make environmentally friendly and clean anthracite briquettes; , the binder is a composite binder, including an organic binder and an inorganic binder, and the organic binder is polyvinyl alcohol and starch, adding 1 kg of polyvinyl alcohol per ton of briquette, 15 kg of starch, polyvinyl alcohol and The starch is prepared into a 5% emulsion, the inorganic binder is bentonite, 34kg is added after the bentonite is pulverized, and caustic soda, sulfur-fixing agent, waterproofing agent, quick-setting agent, synergist and combustion accelerant ...

specific Embodiment 2

[0012] Specific Example 2: A method for producing environmentally friendly anthracite briquettes with low-ash, low-sulfur, low-phosphorus, high-calorific oil-rich coal, using bituminous coal powder as raw material, and undergoing low-temperature dry distillation at 600°C for 6 hours Finally, tar, gas and semi-coke powder are produced, and the semi-coke powder is pulverized, added with binders and additives, mixed, extruded, and then dried to make environmentally friendly and clean anthracite briquettes; , described binding agent is composite binding agent, comprises organic binding agent and inorganic binding agent, organic binding agent is polyvinyl alcohol and starch, every ton of briquette adds polyvinyl alcohol 5kg, starch 6kg, polyvinyl alcohol and The starch is prepared into a 10% emulsion, the inorganic binder is bentonite, 40kg is added after the bentonite is pulverized, and caustic soda, sulfur-fixing agent, waterproofing agent, quick-setting agent, synergist and combu...

specific Embodiment 3

[0013] Specific Example 3: A method for producing environmentally friendly anthracite briquettes with low-ash, low-sulfur, low-phosphorus, high-calorific oil-rich coal, using bituminous coal powder as raw material, and undergoing low-temperature dry distillation at 650°C for 4 hours Finally, tar, gas and semi-coke powder are produced, and the semi-coke powder is pulverized, added with binders and additives, mixed, extruded, and then dried to make environmentally friendly and clean anthracite briquettes; , the binder is a composite binder, including organic binder and inorganic binder, the organic binder is polyvinyl alcohol and starch, and 1.5kg of polyvinyl alcohol, 10kg of starch, polyethylene Alcohol and starch are prepared into an 8% emulsion, the inorganic binder is bentonite, and 20kg is added after the bentonite is pulverized, and caustic soda, sulfur-fixing agent, waterproofing agent, quick-setting agent, synergist and combustion aid are added as additives.

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Abstract

The invention relates to a method for producing environmental protective smokeless moulded coal by oil-rich coal with low-ash low-sulfur low-phosphor and high-heat productivity. Soft coal powder is used as a raw material to produce tar, coal gas and semi coke powder by low-temperature carbonization. The semi coke powder is powdered and added with caking agent and additive to be mixed, extruded to be formed and then dried, and the environmental protective clean smoke less molded coal is produced, wherein, the caking agent is compound caking agent, including organic caking agent, inorganic caking agent; the organic caking agent is polyvinyl alcohol and starch; the polyvinyl alcohol and the starch are made into 5 percent to 10 percent of latex; every ton of moulded coal is added with 1-2kg of the polyvinyl alcohol and 6-15kg of the starch; the inorganic caking agent is bentonite; and every ton of the moulded coal is added with 20-40kg of the bentonite. The production method can relieve the status that smokeless coal has insufficient resource and is in short supply and increases a novel raw material supply variety for the coal used for Chinese chemical industry and synthetic ammonia gas-making industry, and at the same time the technical processing can improve the added value of Shenfu raw coal powder and the semi coke powder and changes waste into valuable.

Description

technical field [0001] The invention relates to a method for producing anthracite briquettes, in particular to a method for producing environmentally friendly anthracite briquettes by using oil-rich coal with low ash, low sulfur, low phosphorus and high calorific value. Background technique [0002] The coal types of Shenfu Coalfield are long-bituminous coal, non-caking coal and weakly caking coal, which are oil-rich coals with low ash, low sulfur, low phosphorus and high calorific value. Direct combustion not only cannot give full play to the high-quality characteristics of coal, which are three low, one high and one rich, but also waste my country's very scarce oil and gas resources, and bring a lot of pollution to the environment. The semi-coke, the solid residue after extracting tar and gas from coal, could not be fully utilized a long time ago, causing a lot of waste. Patent No. 200710090540.3 discloses a kind of blue carbon anthracite and its preparation method. Blue ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/10
Inventor 杨兴平
Owner 杨兴平
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