4 Ton Coal Fired Steam Boiler for Pakistan

Coal fired steam boiler is widely used in industrial production and daily life. But because of strict environmental standards, small coal-fired boilers are banned in many areas, so it’s important to know your local environmental standards before purchasing a boiler. Coal-fired steam boilers are mainly used in chemical, food, packaging, building materials, rubber and other industrial production. Our coal-fired boilers are exported to Bangladesh, Pakistan, Indonesia, Russia and other countries and regions.

coal fired steam boiler

The coal-fired steam boilers ZOZEN designs and produces include DZL series, SZL series, SHX series circulating fluidized bed boiler, DHX series CFB boiler, etc. ZOZEN’s boiler fuel applicability is wide and can be applied to bituminous coal, anthracite, lean coal, lignite and other kinds of coal. At the same time, special grate plate is selected to ensure the smooth operation of grate; Combustion air system (base) adopts independent compartment and scientific sealing structure; Reasonable air conditioning device to achieve accurate air distribution, improve combustion efficiency.

SZL4-1.25-AⅡ assembly pipe steam boiler for the chain grate boiler steam drum longitudinal buy type, rated evaporation 4 t/h, the rated steam pressure 1.25 MPa, steam temperature of 194℃, burning Ⅱ kind of bituminous coal. The set box on both sides of the grate is anti-coke box structure, and the water-cooling wall on both sides of the furnace adopts membrane wall structure. The water-cooled wall pipes of the front and rear walls of the furnace extend downward to the upper part of the furnace grate to form the front and rear arches, which not only increase the sealing performance of the boiler, but also increase the furnace volume and heating surface, and strengthen the strength of the furnace arch. The rear part of the furnace is the combustion chamber and the convective bundle area, and there is an economizer at the end. The flue gas passes through the furnace, burnout chamber, convection tube bundle and economizer into the tail flue, and is discharged into the atmosphere through dust collector, induced draft fan and chimney.

industrial coal-fired boiler

Characteristics of 4 Ton Coal Fired Steam Boiler

1. Reasonably arrange combustion devices on heating surface, and the thermal efficiency of the boiler is more than 5% higher than that of the conventional boiler system.
2. Reasonable smoke speed design, boiler heating surface no ash, no wear, under the condition of no ash blowing, can maintain high efficiency, full load, safe operation for a long time.
3. Large furnace is easy to design reasonable furnace arch according to different fuels, improve fuel burnout and eliminate black smoke.
4. All independent circuits are designed, and the medium velocity in the heating surface circuit is higher than the national standard.
5. Adopt high strength fast strip or scale type grate, add roller device to the large grate, improve the safety of grate, less coal leakage and convenient combustion adjustment.
6. The flue gas is separated by inertia at the outlet of the furnace, which can effectively reduce the dust concentration of exhaust smoke and reduce the wear on the rear heating surface.

Wuxi ZOZEN Boilers Co., LTD is a professional coal-fired boilers manufacturer with rich technical experience. Besides DZL series and SZL series coal-fired boilers, there are biomass boilers, oil-fired and gas-fired boilers, and thermal oil boilers and so on. All kinds of boilers are available in various of industries.