CN104388144A - Coal-saving emission-reducing additive for coal-fired boiler and use method of coal-saving emission-reducing additive - Google Patents

Abstract

The invention discloses a coal-saving emission-reducing additive for a coal-fired boiler. The additive consists of the following raw materials in percentage by weight: 15-30% of quicklime, 15-30% of washing powder, 15-30% of table salt, 10-20% of a compound fertilizer, 5-10% of a high-activity dried yeast, 10-15% of potassium dihydrogen phosphate and 5-10% of a thickening agent. The operation method comprises the following steps: (1) dissolving the coal-saving emission-reducing additive for the coal-fired boiler into water to prepare an aqueous solution with the mass ratio of 1:100; (2) soaking fire coals in the aqueous solution for 1-30 minutes, wherein the mass ratio of the fire coals to the solution is 2:1; (3) putting the soaked fire coals into the boiler for burning, wherein a blower is turned on before the fire coals are added into the boiler, and the fire coals are added into a furnace chamber of the boiler as soon as being fished out of the solution; (4) uniformly sprinkling 60% of the remaining solution after fishing out the fire coals to the fire coals in the furnace chamber of the boiler. By adopting the coal-saving emission-reducing additive disclosed by the invention, 60-80% of the fire coals can be saved, a smoke tube does not exhaust black smoke, the pollutant discharge is reduced, and the effect is obvious.

Description

A kind of coal firing boiler is economized on coal and is reduced discharging additive and using method thereof

Technical field

The present invention relates to a kind of additive, especially a kind of coal firing boiler is economized on coal and is reduced discharging additive and using method thereof.

Background technology

As everyone knows, the total amount of pollutant is directly proportional to coal-fired consumption, heating a certain amount of water to the heat that a certain temperature needs is a fixed number, the heat that coal-fired perfect combustion can produce also is a fixed number, get on very well like this, a certain amount of water should be heated to a certain temperature, also will ensure that the way that pollutant discharge amount is few only has one, that is exactly improve coal-fired efficiency of combustion.Adding in fire coal economizes on coal, and to reduce discharging additive be the most effectual way improving fired coal combustion efficiency, and therefore, studying a kind of coal firing boiler and economize on coal and reduce discharging additive and using method thereof, is the current technical issues that need to address.

Aspects

Technical problem to be solved by this invention is to provide a kind of coal firing boiler and economizes on coal and reduce discharging additive and using method thereof.

The present invention solves the product technology scheme of its technical problem:

A kind of coal firing boiler is economized on coal reduction of discharging additive, it is characterized in that, its raw material consists of: unslaked lime 15 ~ 30%, washing powder 15 ~ 30%, salt 15 ~ 30%, composite fertilizer 10 ~ 20%, high activity dried yeast 5 ~ 10%, potassium primary phosphate 10 ~ 15% and thickening material 5 ~ 10%.

The present invention solves the method and technology scheme of its technical problem:

1. first being economized on coal by coal firing boiler, it is water-soluble to reduce discharging additive, makes the aqueous solution that mass ratio is 1: 100;

2. fire coal is soaked 1-30 minute in the above-mentioned aqueous solution, coal-fired is 2: 1 with the mass ratio of solution;

3. dropped in boiler by the fire coal after immersion and burn, should first blow in when adding coal in boiler machine, and should add to pulling out in the solution fire coal immediately in boiler furnace;

4. be evenly sprinkled upon on the fire coal in boiler furnace by pull coal-fired rear remaining solution out 60%;

5. then not exclusively close air door, i.e. door opening 5 ~ 10cm, burn and close air door completely after 10 ~ 15 minutes;

6. air door burning 1 ~ 2 hour is closed completely;

7. more remaining 40% dissolution homogeneity is sprinkled upon on the fire coal in boiler furnace, burning 5 ~ 10 minutes of blowing under air door buttoned-up status.

As a kind of preferred version of the inventive method technical scheme, the lump coal of described fire coal to be granularity be below 5cm or lump coal mix fire coal with face coal.

Compared with prior art, during burning boiler, in fire coal, add additive of the present invention and operate according to the inventive method, can save coal-fired 60 ~ 80%, chimney is over-emitting black exhaust not, and decreasing pollution discharges, successful.

Embodiment

A kind of coal firing boiler is economized on coal reduction of discharging additive, and its raw material consists of: unslaked lime 15 ~ 30%, washing powder 15 ~ 30%, salt 15 ~ 30%, composite fertilizer 10 ~ 20%, high activity dried yeast 5 ~ 10%, potassium primary phosphate 10 ~ 15% and thickening material 5 ~ 10%.

Coal firing boiler is economized on coal and is reduced discharging additive using method: its processing step is:

1. first being economized on coal by coal firing boiler, it is water-soluble to reduce discharging additive, makes the aqueous solution that mass ratio is 1: 100;

2. fire coal is soaked 1-30 minute in the above-mentioned aqueous solution, coal-fired is 2: 1 with the mass ratio of solution;

3. dropped in boiler by the fire coal after immersion and burn, should first blow in when adding coal in boiler machine, and should add to pulling out in the solution fire coal immediately in boiler furnace;

4. be evenly sprinkled upon on the fire coal in boiler furnace by pull coal-fired rear remaining solution out 60%;

5. then not exclusively close air door, i.e. door opening 5 ~ 10cm, burn and close air door completely after 10 ~ 15 minutes;

6. air door burning 1 ~ 2 hour is closed completely;

7. more remaining 40% dissolution homogeneity is sprinkled upon on the fire coal in boiler furnace, burning 5 ~ 10 minutes of blowing under air door buttoned-up status.

The lump coal of described fire coal to be granularity be below 5cm or lump coal mix fire coal with face coal.

Claims (3)

1. a coal firing boiler is economized on coal reduction of discharging additive, it is characterized in that, its raw material consists of: unslaked lime 15 ~ 30%, washing powder 15 ~ 30%, salt 15 ~ 30%, composite fertilizer 10 ~ 20%, high activity dried yeast 5 ~ 10%, potassium primary phosphate 10 ~ 15% and thickening material 5 ~ 10%.

2. coal firing boiler is economized on coal and is reduced discharging additive using method: it is characterized in that, its processing step is:

1. first being economized on coal by coal firing boiler, it is water-soluble to reduce discharging additive, makes the aqueous solution that mass ratio is 1: 100;

2. fire coal is soaked 1-30 minute in the above-mentioned aqueous solution, coal-fired is 2: 1 with the mass ratio of solution;

3. dropped in boiler by the fire coal after immersion and burn, should first blow in when adding coal in boiler machine, and should add to pulling out in the solution fire coal immediately in boiler furnace;

4. be evenly sprinkled upon on the fire coal in boiler furnace by pull coal-fired rear remaining solution out 60%;

5. then not exclusively close air door, i.e. door opening 5 ~ 10cm, burn and close air door completely after 10 ~ 15 minutes;

6. air door burning 1 ~ 2 hour is closed completely;

7. more remaining 40% dissolution homogeneity is sprinkled upon on the fire coal in boiler furnace, burning 5 ~ 10 minutes of blowing under air door buttoned-up status.

3. coal firing boiler according to claim 2 is economized on coal and is reduced discharging additive using method: it is characterized in that, the lump coal of described fire coal to be granularity be below 5cm or lump coal mix fire coal with face coal.