Industrial 20ton coal fired boiler is single-drum longitudinal chain grate boilers. Suitable for burning pure coal or mixed coal and molded biomass fuel. There is a economizer in the tail, which is a kind of energy saving and environmental protection product. Equipped with a drum induced draft fan for mechanical ventilation, and equipped with a spiral slag machine to achieve mechanical slag. Coal fired boiler manufacturers control and monitoring instruments are complete, boiler operation is safe and reliable.
20ton coal fired boiler manufacturers
This series of boiler products by pulling part of the rising pipe on both sides of the collection box to the guard chamber, and then into the bottom of the drum side and the bottom of the drum heat insulation integral casting molding to form a furnace top heating surface. The new furnace structure successfully solves the problem that the bottom of the drum is directly radiated by the high temperature flame and avoids the defect of “bulge”. The front and back arches of the boiler are supported by water-wall tubes to form permanent arches. The arch design adopts the latest scientific research results, the rear arch is low and long, the outlet section is anti-inclined, the front arch Angle of 45° corresponds to the rear arch, forming an obvious inverted “α” flame, which is conducive to the combustion of inferior coal, and the adaptability of coal species is strong.
20ton coal fired boiler grate side seal structure design is advanced and reasonable, to avoid the side seal stuck grate and grate on both sides of the uneven distribution of air and burn out the defects of the side seal. There is an independent adjusting air chamber under the grate with air inlet on both sides. At the same time, a new type of curved arm screw is used to adjust the structure, so that the ventilation section ratio can be reached. The boiler has flexible adjustment and uniform air distribution. Push-pull type sluice cleaning device is designed. The sluice is made of heat-resistant cast iron, which is finished and sealed to effectively prevent secondary combustion deformation and grate air leakage.
The setting of flue flue on both wings of this series of coal-fired boilers enables the flue gas to enter the front flue box smoothly, so that the temperature of the tube plate is the same before, and the crack of the tube plate is avoided due to the temperature stress. The single return thread smoke pipe is used in the drum to strengthen the heat transfer effect. At the same time, the thread smoke pipe has the function of self-dust removal to avoid the dust accumulation in the smoke pipe.
The DZL series coal fired boiler grate side seal structure design is advanced and reasonable, which avoids the defects of side seal clamping grate and the uneven air distribution on both sides of grate and burning the side seal. Boilers of 4t/h and below are constructed with side sealed cold Angle iron bars. 20ton coal fired boiler has rich experience in the production of boilers with high thermal efficiency, fuel economy and good economy. Zozen Boilers successively exported to more than 100 countries and regions such as Pakistan, Bangladesh, Myanmar, Thailand, Iran, Algeria, Syria, Nigeria, Kazakhstan, Libya, Guinea, Indonesia, Yemen, Mozambique, Vietnam, Cambodia and so on.
