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Smoke-free high-calorific-value multipurpose coal product

A multi-purpose, high calorific value technology, applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of environmental pollution, low combustion efficiency, backward combustion technology and equipment, etc., and achieve significant social benefits, long combustion time, no Effects of polluting uses

Inactive Publication Date: 2014-10-15
宁夏宝塔化工装备设计研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In my country, 85% of coal is used for direct combustion, but due to the backward combustion technology and equipment, it has brought about two major problems: low combustion efficiency and environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First prepare the raw materials according to the following proportions:

[0035] 75 kg of pulverized coal

[0036] Iron clay 8 kg

[0037] Dolomite powder 5kg

[0038] Biomass (various plant fiber powders) 13kg

[0039] Lightly burned magnesium 8 kg

[0040] Sodium chloride 3 kg

[0041] Magnesium hydroxide 2 kg

[0042] Potassium hydroxide 1.5 kg

[0043] According to the different components of the coal quality test, add different proportions of additives into the coal and stir evenly, then add 5-15% water and stir to make it semi-dry, and then extrude it into products of various specifications through a coal pellet forming machine .

[0044] From the point of view of energy utilization, the present invention can save coal resources with limited reserves, and from the point of view of environmental protection, it can reduce smoke NO x and SO 2 emissions, greatly reducing the pollution of the atmosphere caused by coal burning.

Embodiment 2

[0046] First prepare the raw materials according to the following proportions:

[0047] Pulverized coal 55 kg

[0048] Iron clay 6 kg

[0049] Dolomite powder 3 kg

[0050] Biomass (various plant fiber powders) 10kg

[0051] Lightly burned magnesium 5kg

[0052] Sodium chloride 1 kg

[0053] Magnesium hydroxide 1 kg

[0054] Potassium hydroxide 0.5 kg

[0055] According to the different components of the coal quality test, add different proportions of additives into the coal and stir evenly, then add 5-10% water and stir to make it semi-dry, and then extrude it into products of various specifications through a coal pellet forming machine .

[0056] From the point of view of energy utilization, the present invention can save coal resources with limited reserves, and from the point of view of environmental protection, it can reduce smoke NO x and SO 2 emissions, greatly reducing the pollution of the atmosphere caused by coal burning.

Embodiment 3

[0058] First prepare the raw materials according to the following proportions:

[0059]Minced coal 70kg

[0060] Iron clay 10kg

[0061] Lightly burnt dolomite powder 6kg

[0062] Sodium chloride 3 kg

[0063] Potassium hydroxide 2 kg

[0064] Methylcellulose (MC)

[0065] (or CMC (hydroxymethyl cellulose)) 0.003 kg

[0066] Biomass 12 kg

[0067] Perchlorate 5 kg

[0068] According to the different components of the coal quality test, add different proportions of additives to the coal and stir evenly, then add 5% water and stir to make it semi-dry, and then extrude it into products of various specifications through a briquette forming machine.

[0069] From the point of view of energy utilization, the present invention can save coal resources with limited reserves, and from the point of view of environmental protection, it can reduce smoke NO x and SO 2 emissions, greatly reducing the pollution of the atmosphere caused by coal burning.

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Abstract

A smoke-free high-calorific-value multipurpose coal product is prepared from powdered coal, or foam coal or coal mud, and chemical substances which can remove impurities from the powdered coal, or the foam coal or the coal mud, wherein the impurities can cause environmental pollution. The coal product is free of smoke, odor and pollution and is wide in applications. Compared with a coal product produced in other manufacturers, the coal product is long in combustion time, is high in flame and is free from coking. A calorific value of the coal product is equal to that of raw coal, but a sewage-discharging index and a sulfur-discharging index are both lower than a pollution index of the raw coal. The coal product is a novel product which can replace the raw coal and is environment-protective and energy-saving. The coal product can preventing coal smoke poisoning in civil utilization (including hot pot charcoal), is beneficial to environment and society in industrial utilization, can greatly reduce costs of citizen using coal and public institutions. The coal product, when being used in enterprises, can reduce a production cost and achieving a high economic benefit.

Description

technical field [0001] The invention belongs to the field of deep processing of clean coal products technical background [0002] Coal is the most abundant fossil fuel resource in the world, but compared with oil and natural gas, the development and utilization of coal not only pollutes the environment, but also has the lowest energy utilization efficiency. Therefore, how to realize high-efficiency, energy-saving, and environmental-friendly utilization of coal resources has become an important issue of concern to countries all over the world, and environmentally friendly and energy-saving briquette product technology has also become one of the leading technologies in the world to solve environmental problems caused by coal. It is an international high-tech an important area of ​​competition. [0003] In my country, 85% of coal is used for direct combustion, but due to the backward combustion technology and equipment, it has brought about two major problems: low combustion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/06C10L9/10C10L9/12
Inventor 王全祥花永红谢建冬李曦
Owner 宁夏宝塔化工装备设计研究院有限公司
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