CN101440328A - Environment-protecting synergistic agent for fuel coal - Google Patents

Abstract

The invention discloses a bunker coal environment-friendly synergist, which comprises the following components by weight percent: 1 to 10 percent of ammonium bicarbonate, 1 to 8 percent of sodium bicarbonate, 1 to 10 percent of sodium carbonate, 1 to 5 percent of sodium nitrate, 1 to 10 percent of potassium nitrate, 1 to 15 percent of calcium carbonate, 1 to 10 percent of sodium hydroxide, 2 to 10 percent of calcium hydroxide, 1 to 10 percent of potassium permanganate, 3 to 15 percent of potassium chloride, 10 to 35 percent of sodium chloride, 1 to 10 percent of ammonium chloride, 1 to 15 percent of calcium chloride, 1 to 10 percent of borax, 1 to 10 percent of macaroni, 1 to 5 percent of potassium carbonate, 1 to 5 percent of calcium nitrate, 1 to 5 percent of iron oxide, and the balance being micro turpentine, sulfur and paraffin wax. The bunker coal environment-friendly synergist makes flame of combustion be more rampant and denser, the furnace temperature rise to a higher level, the hearth be brighter and cleaner and tail gas be cleaner.

Description

Environment-protecting synergistic agent for fuel coal

Technical field

The present invention relates to a kind of additive for fire coal, in particular for coal-fired environmental protection synergic additive.

Background technology

Steam coal ubiquity incomplete combustion and the big problem of heat energy number of dropouts, tracing it to its cause one is that carbon does not have perfect combustion, carbon burning when the oxygen foot has two process: 2C+O ₂=2CO, 2CO+O ₂=2CO ₂Wherein the heat energy of fs release is about 28%, and the heat energy that subordinate phase discharges is about 72%.Carbon burns when oxygen is insufficient three process: 2C+O ₂=2CO, 2CO+O ₂=2CO ₂, C+CO ₂=2CO (C+CO ₂=2CO absorbs heat).In the combustion processes of boiler, in order to reduce the loss of heat energy, generally can not adopt the mode that increases airshed allow fired coal combustion.When having other oxygenant to replenish, will not cause the waste of the energy and the pollution of CO.The 2nd, macromolecule organic and charcoal coking material can not get abundant burning, and fire coal is made up of multiple material, multiple compound and multiple organism.In fired coal combustion, usually coking phenomenon can occur, coal-fired active combustion rate is reduced.The 3rd, flame quality is low, the undertighten that contacts of burner hearth and flame envelope, and flame is not high enough, close, heat inadequately inadequately.Iron is the good conductor of heat, and the air heat conductivility is very poor, and the inboard of flame envelope is the highest place of flame temperature.Flame envelope can't big area heat burner hearth, but so will inevitably be less than the ideal effect to air heating.Coal-fired bulking intensity is not enough, and the height of flame, density and temperature can not get fully playing during burning.The 4th, the influence of boiler scale, the incomplete combustion of coal is the major cause that produces the outer dirt of boiler.The generation of the outer dirt of boiler and increase the heat absorption capacity that has directly reduced boiler.

Summary of the invention

The object of the present invention is to provide and a kind ofly can improve burning of coal efficient, coal is carried out desulfurization, reduce the environment-protecting synergistic agent for fuel coal of coal combustion exhaust exhaust emission.

This environment-protecting synergistic agent for fuel coal provided by the invention, this synergistic agent is composed of the following components by weight percentage:

Bicarbonate of ammonia 1%-10%

Sodium bicarbonate 1%-8%

Yellow soda ash 1%-10%

SODIUMNITRATE 1%-5%

Saltpetre 1%-10%

Lime carbonate 1%-15%

Sodium hydroxide 1%-10%

Calcium hydroxide 2%-10%

Potassium permanganate 1%-10%

Repone K 3%-15%

Sodium-chlor 10%-35%

Ammonium chloride 1%-10%

Calcium chloride 1%-15%

Borax 1%-10%

Logical powder 1%-10%

Salt of wormwood 1%-5%

Nitrocalcite 1%-5%

The oxide compound 1%-5% of iron

Surplus is trace ingredients rosin, sulphur and paraffin.

In synergistic agent of the present invention potassium permanganate, sulphur, saltpetre, SODIUMNITRATE, nitrocalcite be catalyzer they can promote the burning, the scorification material, potassium permanganate, carbonic acid gas are oxygenants, rosin, paraffin, logical these trace ingredientss of powder are macromolecule organics, bicarbonate of ammonia, sodium bicarbonate, Calcium hydrogen carbonate, borax are raising agents, sodium bicarbonate, yellow soda ash, lime carbonate, calcium hydroxide, sodium hydroxide, sulphite are sweetening agents, and in the composition of the present invention alkalimetal ion are arranged.Therefore the present invention one is by impelling the coal-fired more abundant burning of flammable composition by natural polymer organism, oxygenant, catalyzer are three-in-one; The 2nd, by raising agent gap, coal-fired internal space is increased, make fire coal contact, burn with air easily.Bulk technology can also make the burning that comes off automatically of the stove dirt of burner hearth, thereby guarantees the capacity of heat transmission of boiler, the normal duration of service of prolonged boiler; The 3rd, remove the part sulphur that fires back gas by sweetening agent; The 4th, the control of alkalimetal ion quantity and kind realizes the control to the flame energy jump, make the long increase about 1/3 of flame of flame, thereby make the flame envelope of more flames be adjacent to burner hearth, density, brightness, the temperature of flame all have very significantly under the flame activatory promotes increases, and can control the fume amount of incendiary time and reduction tail gas by flame.Synergistic agent of the present invention in a word can make burned flame more fierce denser, can make furnace temperature rise De Genggao, can make burner hearth brighter and cleaner, and tail gas is more cleaned

Embodiment

Embodiment one:

Take off row composition (weight unit kilogram):

Bicarbonate of ammonia 8

Sodium bicarbonate 8

Yellow soda ash 5

SODIUMNITRATE 1

Saltpetre 9

Lime carbonate 3

Sodium hydroxide 1

Calcium hydroxide 7

Potassium permanganate 4

Repone K 10

Sodium-chlor 35

Ammonium chloride 1

Calcium chloride 1

Borax 1

Logical powder 1

Salt of wormwood 2

Nitrocalcite 1

The oxide compound 1 of iron

Surplus is trace ingredients rosin, sulphur and a paraffin totally 1.

Mentioned component pulverized then mix, mixture homogeneity requires more than 60%, and is high more good more, obtains product of the present invention, and this product is grey or dark gray powder, nontoxic radiationless, difficult to burn, is weakly alkaline, has faint ammonia to distinguish the flavor of.

Product of the present invention is added in the coal, and with product of the present invention: coal (weight ratio) is 1:100, and its burning usefulness improves more than 25%, promptly 100 tons of coals add product burning of the present invention can be to the coal-fired effect more than 125 tons.And can remove this product of about 0.2% sulphur (the coal-fired sulphur content in existing market is 0.24%-0.86%) that is equivalent to coal-fired weight smoke elimination, coke cleaning, corrosion inhibition are arranged.Can make boiler more firm, the life-span is more permanent.The contriver has also carried out following preparation to product of the present invention, has also confirmed the advantage that the present invention had by on probation, sees Table one.

Table one:

Claims (1)

1, a kind of environment-protecting synergistic agent for fuel coal, this synergistic agent is composed of the following components by weight percentage:

Bicarbonate of ammonia 1%-10%

Sodium bicarbonate 1%-8%

Yellow soda ash 1%-10%

SODIUMNITRATE 1%-5%

Saltpetre 1%-10%

Lime carbonate 1%-15%

Sodium hydroxide 1%-10%

Calcium hydroxide 2%-10%

Potassium permanganate 1%-10%

Repone K 3%-15%

Sodium-chlor 10%-35%

Ammonium chloride 1%-10%

Calcium chloride 1%-15%

Borax 1%-10%

Logical powder 1%-10%

Salt of wormwood 1%-5%

Nitrocalcite 1%-5%

The oxide compound 1%-5% of iron

Surplus is trace ingredients rosin, sulphur and paraffin.