CN1473914A

CN1473914A - Method for producing smoke-prevention, dust-contorl and energy saving combustion improver

Info

Publication number: CN1473914A
Application number: CNA021364494A
Authority: CN
Inventors: 王林泉; 王士云
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-09
Filing date: 2002-08-09
Publication date: 2004-02-11
Anticipated expiration: 2022-08-09
Also published as: CN1208438C

Abstract

The production process of smoke-eliminating, dust removing and energy saving combustion improver includes a) crushing, grinding and mixing potassium chloride, magnesium chloride and Fe2O3, setting the mixture inside a reactor and mixing with water for reaction; b) crushing ammonium nitrite and setting inside one other reactor and mixing with water for reaction the product of the fore step; c) mixing crushed coarse whiting, nitric acid and water to produce calcium nitrate; mixing calcium nitrate with the product of step b) for reaction, stoving, adding RE, quartz, barite and carbonate for reaction, and adding kaolin to reaction to obtain the combustion improver. The combustion improver is used in coal combustion to perform the functions of catalysis, releasing heat, fixing sulfur and lowering environmental pollution.

Description

The manufacture method of a kind of smoke elimination, dedusting, combustion energy-saving combustion adjuvant

Technical field:

The invention belongs to chemical field, particularly the fuel in the coal-mining industry is the manufacture method of a kind of smoke elimination, dedusting, combustion energy-saving combustion adjuvant specifically.

Background technology:

China is one and uses coal big country, nearly more than 40 ten thousand boilers, annual 300000000 tons in the coal that consumes, more than 11 ten thousand of Industrial Stoves, year is consumed more than 200,000,000 ton in coal, and more than 200,000,000 ton in civilian coal is because equipment and technology is outmoded, boiler efficiency is low, energy consumption is big, and exhaust gas emission exceeds standard, and air environmental pollution is serious, at present, for energy consumption that reduces coal firing boiler and the influence that reduces the coal firing boiler environmental pollution, need transform coal firing boiler, change and use coal-fired be use fuel oil or combustion gas, but need to drop into huge fund, and also need the working cost of great number after transforming, in the prior art, in order to improve coal-fired efficiency of combustion, usually use ignition dope, described ignition dope comprises potassium permanganate, sodium salt, ferric oxide and Manganse Dioxide.

Summary of the invention:

Technical problem to be solved by this invention is: in the prior art, in order to improve coal-fired efficiency of combustion, usually use ignition dope, described ignition dope comprises potassium permanganate, sodium salt, ferric oxide, Manganse Dioxide, but potassium permanganate is a kind of strong oxidizer, and security is not high, cost is big, and contain a large amount of sodium salts, and the easy coking of the ignition dope of ferric oxide and Manganse Dioxide, combustion-supporting effect is not good, can cause secondary pollution simultaneously, the present invention provides a kind of smoke elimination for the technical scheme that above-mentioned technical problem adopted that solves in the prior art, dedusting, the manufacture method of combustion energy-saving combustion adjuvant, wherein, the manufacture method of described ignition dope comprises the steps:

A) with 4.0-6.0 part potassium chloride, 3.0-4.0 part magnesium chloride, 4.5-5.5 part Fe ₂O ₃After fragmentation, the fine grinding, mix, be placed in the reaction pot, add certain water, stirring reaction 8-12 hour;

B) 6.0-8.0 part nitramine is pulverized, be placed in another reactor, add entry, stirring reaction 8-12 hour, a) last reactant is added mixing then, stirring reaction;

C) with after the pulverizing of 25-30 part coarse whiting, be placed in the reaction pot, add 0.5-1.0 part nitric acid and add water, stir, mixing is after the dehydration, generate calcium nitrate, then with b) reactant that obtains of step stirs and evenly mixs, after the reaction, oven dry, add then the quartzy barite carbonate of 24-30 part rare earth, after the reaction, add 27-30 part kaolin ore mixing, reaction can obtain industrial operable combustion adjuvant (above-described umber is weight portion) again.In the manufacture method of combustion adjuvant of the present invention, the quartzy barite carbonate of described rare earth comprises La2O ₃, CeO ₂, Nd ₂O ₃, Eu ₂O ₃, described kaolin ore comprises Al ₂O ₃, Fe ₂O ₃, CaO, SiO ₂

In resulting ignition dope by the present invention, owing to added kaolin ore therein, ventilation property when making coal burning is better, coal can fully burn, simultaneously owing to adopted the quartzy barite carbonate of rare earth, nitramine, Repone K, magnesium chloride, brown iron oxide, nitric acid and coarse whiting, make in the combustion processes of coal, a series of reaction takes place, play the effect of catalysis and heat release, in the raw material that the present invention adopts, the aluminium vanadine has the prevention coking, and the nitrate of coarse whiting and magnesium has the combustion position of improvement, and the oxide compound that its pyrolytic decomposition generates has absorption SO ₂Deng acidic oxide, make the ignition dope that obtains by the present invention have certain solid sulphur effect again, can alleviate pollution to environment.

Embodiment:

The manufacture method of a kind of smoke elimination of the present invention, dedusting, combustion energy-saving combustion adjuvant, wherein, the manufacture method of described ignition dope comprises the steps:

A) with 4.0-6.0 part potassium chloride, 3.0-4.0 part magnesium chloride, 4.5-5.5 part Fe ₂O ₃After fragmentation, the fine grinding, mix, be placed in the reaction pot, add certain water, stirring reaction 10 hours;

B) 6.0-8.0 part nitramine is pulverized, be placed in another reactor, add entry, stirring reaction 10 hours adds a) last reactant, mixing then, stirring reaction;

C) with after the pulverizing of 25-30 part coarse whiting, be placed in the reaction pot, add 0.5-1.0 part nitric acid and add water, stir, mixing is after the dehydration, generate calcium nitrate, then with b) reactant that obtains of step stirs and evenly mixs, after the reaction, oven dry, add then the quartzy barite carbonate of 24-30 part rare earth, after the reaction, add 27-30 part kaolin ore mixing, reaction can obtain industrial operable combustion adjuvant (above-described umber is weight portion) again.In the manufacture method of combustion adjuvant of the present invention, the quartzy barite carbonate of described rare earth comprises La ₂O ₃, CeO ₂, Nd ₂O ₃, Eu ₂O ₃, described kaolin ore comprises Al ₂O ₃, Fe ₂O ₃, CaO, SiO ₂

Claims

1, the manufacture method of a kind of smoke elimination, dedusting, combustion energy-saving combustion adjuvant is characterized in that: the manufacture method of described ignition dope comprises the steps:

A) with 4.0-6.0 part Repone K, 3.0-4.0 part magnesium chloride, 4.5-5.5

Part Fe ₂O ₃After fragmentation, the fine grinding, mix, be placed in the reaction pot, add

Certain water, stirring reaction 8-12 hour,

B) 6.0-8.0 part nitramine is pulverized, be placed in another reaction pot, add

Water, stirring reaction 8-12 hour, a) last reactant is added,

Mixing then, stirring reaction,

C) with after the pulverizing of 25-30 part coarse whiting, be placed in the reaction pot, add 0.5

-1.0 parts of nitric acid with add entry, stir, mixing after the dehydration, generates

Nitrocalcite is then with b) the reactant stirring and evenly mixing that obtains of step, anti-

Should after, oven dry adds the quartzy barite carbonic acid of 24-30 part rare earth then

Salt after the reaction, adds 27-30 part kaolin ore mixing again, reaction.

(above-described umber is a weight part).

2, the manufacture method of a kind of smoke elimination as claimed in claim 1, dedusting, combustion energy-saving combustion adjuvant is characterized in that: the quartzy barite carbonate of described rare earth comprises La2O ₃, CeO ₂, Nd ₂O ₃, Eu ₂O ₃

3, the manufacture method of a kind of smoke elimination as claimed in claim 1, dedusting, combustion energy-saving combustion adjuvant is characterized in that: described kaolin ore comprises Al ₂O ₃, Fe ₂O ₃, CaO, SiO ₂