Burner of 30mg low nitrogen classifications flaming technology principle introduces simply

Burner of 30mg low nitrogenClassification flaming technology principle

Burner of 30mg low nitrogen classifications combustion principle restrains NOx generate the method that can adopt to have:

1. drops temperature of boiler peak value, the coal fines of combustion area the volume drops.

Chroma of the deoxydization below 2. (drop namely excessive air coefficient) , 2 times the part wind canal stems.

Because 3. wants to ensure of boiler exert oneself, can throw partial coal fines and air from boiler upside, hold the amount that charged combustion air of area of combustion blaze center so, shorten combustion product is in the retention period of area of high temperature blaze, avoided pH indicator of tall oxygen of high temperature article to exist together.

4. Recrudescent division is established in the chamber of a stove or furnace, use in advocate the hydrocarbon root CHi that the combustion in lighting an area generates and CO of product of not complete combustion, H2, C and CnHm, become the rehabilitation of NO N2.

80% ～ the fuel of 85% sends advocate light an area, fuel is in advocate combustion burning an area generates NOx, the fuel of 20% sends 15% ～ recrudescent area, coefficient of air of recrudescent area excessive is less than 1.0(α <1.0) , have very strong rehabilitation sex atmosphere, in advocate the NOx that lights an area to generate is recovered; The NOx that recrudescent area can recover to already was generated now not merely, and still restrained new NOx generate; In the air that lights an area to furnish to be measured certainly (call light wind) , ensure the product of not complete combustion that comes out from recrudescent area is lighted. The basis exceeds fine coal fines the delibrate achievement of principle of technology of combustion of recrudescent low NOx and early days, whole the chamber of a stove or furnace cent of combustion division into districts is given priority to light area, recrudescent area and light an area. Each area exports cost of target of excessive air coefficient to be: Advocate ～ of =0.9 of α of exit burning an area 1, ～ of =0.8 of α of recrudescent area exit 0.9, light an area to export α =1.167. Boiler advocate, recrudescent area all is lighted with boiler practice it is fuel with coal, advocate combustion burning an area 80% ～ the thick coal fines of 90% , recrudescent region spurt enters 10% ～ of 20% super- refine coal fines to serve as recrudescent fuel.

Exceeding fine coal fines is the coal fines that shows bead diameter is less than 43 μ M, the basis concerns delibrate, this normative coal fines has as identical as pulverization fuel combustion character. Use in the project in, can use shade leave implement from the take leave of in groovy coal fines.