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Fire coal clean assistant and preparation method thereof

A cleaning aid, coal-burning technology, used in fuel, solid fuel, petroleum industry and other directions, can solve the problems of inability to carry out harmful gases, many harmful gases, and large pollution, achieve clean and non-toxic raw materials, reduce environmental pollution, and prepare simple method effect

Active Publication Date: 2019-04-12
北京首创大气环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a coal-burning cleaning aid and a preparation method thereof. The aid of the present invention has desulfurization and denitrification effects in the coal-burning process, and plays the purpose of desulfurization and denitrification without affecting the calorific value of coal combustion. And the removal rate of desulfurization and denitrification can reach more than 80%, which solves the problem of large pollution caused by traditional coal combustion, a lot of harmful gases, and the inability to process harmful gases. Desulfurization and denitrification can be carried out simultaneously during the combustion process, reducing low-altitude surface sources Pollutant emissions, reducing the impact on the atmospheric environment

Method used

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preparation example Construction

[0032] Another object of the present invention lies in a kind of preparation method of coal-fired cleaning aid, comprising the following steps:

[0033] A. Add 0.5-1.5 parts by weight of composite adhesive to 4-7 parts by weight of water, mix and stir, add 0.5-1.5 parts by weight of titanium dioxide, and mix well to obtain liquid A;

[0034] B. Add 2 to 4 parts by weight of calcium magnesium acetate into 4 to 8 parts by weight of water, and stir evenly to obtain liquid B;

[0035] C. Mix 1-5 parts by weight of calcium oxide, 1-3 parts by weight of urea, and 0.5-1.5 parts by weight of catalyst to obtain powder C;

[0036] D. Mix powder C and liquid B, then add liquid A, after mixing, enter the mixer and stir for 1 to 2 hours to obtain an environmentally friendly coal-fired cleaning aid.

[0037] Preferably, the calcium magnesium acetate is mixed with calcium acetate and magnesium acetate at a mass ratio of 3:1, and then mixed with a magnesium chloride solution with a mass conc...

Embodiment 1

[0041] Weigh 100g of compound modified starch and add it to 600g of water, mix and stir, add 75g of titanium dioxide, fully stir for 10min, mix well and get liquid A for later use;

[0042] Add 200g of calcium magnesium acetate to 600g of water and stir for 5 minutes to obtain liquid B for later use;

[0043] Fully mix 500g of calcium oxide, 300g of urea, and 150g of catalyst to obtain powder C;

[0044] Mix powder C and liquid B, then add liquid A, after mixing, enter the mixer and stir for 1 to 2 hours to obtain an environmentally friendly coal-fired cleaning aid.

[0045] Add 7% (i.e. 2.52kg) of the above-mentioned environmentally friendly coal-fired cleaning additives to 36kg of coal-fired coal. The above-mentioned 2.52kg of clean coal-fired additives are evenly mixed with 36kg of coal powder, and the coal is pressed into shape, and then burned on the stove Internal combustion, the combustion temperature is controlled at about 900°C. After combustion tests and tests, when...

Embodiment 2

[0048] Weigh 150kg of polyvinyl alcohol and add it to 1000kg of water, mix and stir, add 150kg of titanium dioxide, fully stir for 10min, and mix well to obtain liquid A for later use;

[0049] Add 500kg of calcium magnesium acetate into 300kg of water and stir for 5 minutes to obtain liquid B for subsequent use;

[0050] The calcium oxide of 100kg, the urea of ​​150kg, the catalyst of 75kg are fully mixed, obtain powder C;

[0051] Mix powder C and liquid B, then add liquid A, after mixing, enter the mixer and stir for 1 to 2 hours to obtain an environmentally friendly coal-fired cleaning aid.

[0052] Add 10% (i.e. 10kg) of the above-mentioned environmentally friendly coal-fired cleaning additives to 1000kg of coal-fired coal. The above-mentioned 10kg of clean coal-fired additives are evenly mixed with 1000kg of coal powder, and the coal is pressed into shape, and then burned in the combustion stove , the combustion temperature is controlled at 1000°C. After combustion test...

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Abstract

The invention relates to a fire coal clean assistant and a preparation method thereof. The fire coal clean assistant comprises: 8-15 weight parts of water, 1-5 weight parts of calcium oxide, 2-4 weight parts of calcium magnesium acetate, 1-3 weight parts of urea, 0.5-1.5 weight parts of titanium dioxide, 0.5-1.5 weight parts of a catalyst and 0.5-1.5 weight parts of a composite binder. The fire coal clean assistant provided by the invention is environment-friendly and pollution-free, the used raw materials are clean and non-toxic, the preparation method is simple, therefore the fire coal cleanassistant can be produced in large batches and applied to the market, especially is very effective for low non-point source pollution caused by civil bulk coal combustion, lowers environmental pollution and reduces resource waste. Moreover, the assistant provided by the invention can also be used for general coal combustion areas without organized emission, solves the hazards of fire coal to theenvironment from the source, and does not produce secondary pollution problem.

Description

technical field [0001] The invention relates to an auxiliary agent and a preparation method thereof, in particular to a coal-burning cleaning auxiliary agent and a preparation method thereof. Background technique [0002] my country is a big coal-consuming country, and coal accounts for about 70% of primary energy consumption, of which up to 70% is used for direct combustion or power generation. With the increasing environmental protection pressure and the implementation of clean energy such as wind energy, solar energy, and water energy in recent years, the use of coal has been restricted to a certain extent, but this has not shaken the status of coal as the main source of energy in my country. Moreover, in the winter heating season in northern rural areas, coal is still directly burned for cooking and heating. The burning of scattered coal is basically a low-level non-point source, and the emission height is very low. The waste gas produced has brought great harm to humans...

Claims

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Application Information

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IPC IPC(8): C10L9/10
CPCC10L9/10
Inventor 张平敏管友军霍茂清王薇解刚孟德发刘建辉刘惠普薛峰于佳欢
Owner 北京首创大气环境科技股份有限公司
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