CN1227256A

CN1227256A - Coal saving powder

Info

Publication number: CN1227256A
Application number: CN 98107116
Authority: CN
Inventors: 那学方
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-25
Filing date: 1998-02-25
Publication date: 1999-09-01

Abstract

The coal-saving powder is produced by mixing smoke suppressor, desulfurizing agetn, comburant agent, aerating agent, activator and puffing agent according to a certain proportion, and contains tween-60, ferric oxide, magnesia, manganese carbonate, calcium oxide, sodium chloride, potassium nitrate, sodium nitrate, potassium permanganate, dodecyl sodium bensosulfonate, sodium exametaphosphate, trisodium phosphate and vermiculite. When used, it is added into coal and can make coal combust completely and reduce CO, sulfide and oxide pollution to atmosphere.

Description

Coal saving powder

The invention belongs to technical field of inorganic, is a kind of additive for fire coal---coal saving powder that is mixed by various inorganic chemistry raw materials specifically.

Coal is in combustion processes, and owing to its chemical incomplete combustion and physics incomplete combustion cause a large amount of energy dissipations, people have done unremitting effort for this reason.Prior art mainly is conceived to adopt physical method to impel its burning fully, as: improve combustion equipment, improve combustion method, fire coal is made powdery or moulded coal, obtained challenging achievement, but still be in level about 20% at its incomplete combustion of many occasions, the COAL-WATER SLURRY TECHNOLOGY of modern technologies is melted physico-chemical process in one, obtained breakthrough, but its complex process, big area is promoted still certain degree of difficulty.

The present invention's purpose just is to remedy the deficiency of prior art, and a kind of burning of coal efficient that can improve is provided, and makes additive for fire coal simple, easy to use, that be suitable for applying---coal saving powder simultaneously again.

The object of the present invention is achieved like this: a kind of coal saving powder, be mixed into 100% and stir and make by the weight percent of following auxiliary agent: smoke suppressor (1) 10-20%, sweetening agent (2) 0-20%, ignition dope (3) 20-40%, oxygenant (4) 10-1.5%, promoting agent (5) 10-20%, raising agent (6) 0-10%, it is characterized in that: A, the material composition of smoke suppressor (1) is: polysorbate60, ferric oxide, or their mixture, B, the material composition of sweetening agent (2) is: manganous carbonate, calcium oxide, or their mixture, C, the material composition of ignition dope (3) is: saltpetre, SODIUMNITRATE, sodium-chlor, or their mixture, D, the material composition of oxygenation agent (4) is: potassium permanganate, E, the material composition of promoting agent (5) is: Sodium dodecylbenzene sulfonate, Sodium hexametaphosphate 99, tertiary sodium phosphate, or their mixture, F, the material composition of raising agent (6) is: magnesium oxide, sodium-chlor, vermiculite, or their mixture.While sweetening agent (2) wherein, the weight percent of its adding can determine that accurately when the sulphur content in the fire coal was 0, the weight percent of sweetening agent (2) was 0% according to the sulphur content in the fire coal in the scope of 0-20%.Also have raising agent (6), when fire coal was non-coal briquette for civillan use, the weight percent of its adding was 0%.During use, as long as with this coal saving powder and coal-fired thorough mixing, i.e. burning.

Adopt this coal saving powder will obtain following effect:

1, the adding of smoke suppressor, sweetening agent not only can reduce the chemical incomplete combustion of coal, and can reduce carbon monoxide, oxysulfide to atmospheric pollution.

2, the adding of ignition dope, oxygenation agent can reduce physics, the chemical incomplete combustion of coal simultaneously, impels the oxidizing reaction of coal.

3, the adding of promoting agent, raising agent can reduce the physics incomplete combustion of coal.

4, manufacturing process is simple, raw material is easily purchased, easy to use, be easy to apply.

Below with the invention will be further described:

Coal is in combustion processes, topmost chemical incomplete combustion is that carbon and oxygen reaction back generate carbon monoxide, polysorbate60 in the smoke suppressor and ferric oxide all belong to oxygenant, under hot conditions, they can carry out redox reaction to carbon monoxide as reductive agent, make reaction of carbon monoxide become carbonic acid gas, thereby reduce the carbon monoxide content in the flue gas.Sulphur contained in the coal can form sulfurous gas or sulphur trioxide in combustion processes, row is behind atmosphere, they are exactly the main chemical substance that produces acid rain, manganous carbonate in the sweetening agent, calcium oxide can be under hot conditionss and sulphur generation chemical reaction, make sulphur formation sulfosalt or sulphite or Sulfates material and enter cinder, enter atmosphere with flue gas and be unlikely to form the gasiform oxysulfide.The coal of China is various, and when practical application, the adding of sweetening agent should accurately be calculated according to the actual measurement sulphur content in the fire coal and be determined that the sweetening agent add-on is very few, and it is unclean that sulphur takes off, and adds the trouble-free burning that too much influences coal on the contrary.When the sulphur content in the fire coal was 0, the add-on of sweetening agent was 0%.The adding of ignition dope is in order to promote the oxidation of coal, saltpetre, SODIUMNITRATE itself are exactly combustible strong oxidizer, sodium-chlor itself is not flammable, but its crystal has the high temperature burst, thereby its explosion will make the coal grain produce motion and burning that local dip impels the coal grain in burning bed.Oxygenation agent potassium permanganate itself is a strong oxidizer, and it meets thermolysis can produce free state oxygen, and free state oxygen has strong oxidizing property and activity, can impel the exothermic oxidation reaction of coal rapidly.The adding of promoting agent then is in order to improve coal surfactivity between each material in combustion processes, to impel the chemical reaction between them, and Sodium dodecylbenzene sulfonate, Sodium hexametaphosphate 99, tertiary sodium phosphate all are sophisticated tensio-active agents.Raising agent is only limit and is used in coal briquette for civillan use, because of being mixed with clay in the coal briquette for civillan use or lime is made tackiness agent, and denser, this has certain disadvantageous effect to burning.Magnesium oxide in the raising agent, its crystal of sodium-chlor can produce explosion in hot conditions, make to produce localized voids in the moulded coal, contain crystal water in the vermiculite, under hot conditions, can expand, also make to produce localized voids and loosening in the moulded coal, thereby impel the burning of moulded coal with physical method.Then need not add raising agent for non-coal briquette for civillan use, because itself is exactly a loose condition (of surface).

Claims

1, a kind of coal saving powder, be mixed into 100% and stir and make by the weight percent of following auxiliary agent: smoke suppressor (1) 10-20%, sweetening agent (2) 0-20%, ignition dope (3) 20-40%, oxygenant (4) 10-15%, promoting agent (5) 10-20%, raising agent (6) 0-10% is characterized in that:

The material composition of A, smoke suppressor (1) is: polysorbate60, ferric oxide or their mixture,

The material composition of B, sweetening agent (2) is: manganous carbonate, calcium oxide or their mixture,

The material composition of C, ignition dope (3) is: saltpetre, SODIUMNITRATE, sodium-chlor or their mixture,

The material composition of D, oxygenation agent (4) is: potassium permanganate,

E, the material composition of promoting agent (5) is: Sodium dodecylbenzene sulfonate, Sodium hexametaphosphate 99, tertiary sodium phosphate or their mixture,

The material composition of F, raising agent (6) is: magnesium oxide, sodium-chlor, vermiculite or their mixture.

2, coal saving powder according to claim 1, it is characterized in that said sweetening agent (2), the weight percent of its adding can determine that accurately when the sulphur content in the fire coal was 0, the weight percent of sweetening agent (2) was 0% according to the sulphur content in the fire coal in the scope of 0-20%.

3, coal saving powder according to claim 1 is characterized in that said raising agent (6), and when fire coal was non-coal briquette for civillan use, the weight percent of its adding was 0%.