Coal-fired steam boiler is our company according to the needs of consumers, set the advantages of similar products carefully designed. Chain grate steam boiler installation fast, save time and material, compact structure, small footprint. It has the advantages of high reliability, high thermal efficiency and strong overload capacity. It is the best design product for similar products. DZL series steam boiler is widely used in schools, textile factory, clothing factory, printing and dyeing factory, restaurants, food factory, beverage factory, bean products factory, meat products factory, cannery, winery, pharmaceutical factory, packaging factory, building materials factory, coating factory, swimming pool and other enterprises and institutions.

This series of steam boiler can be pulled to the furnace by the rising pipe on both sides of the collection box, and then introduced into the bottom of the drum side and covered with insulation material at the bottom of the drum to form the furnace top heating surface, with a novel furnace structure successfully solved the bottom of the drum directly by the high temperature flame radiation, to avoid the “bulge” defect. The arch design of chain grate boiler 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° echoes the rear arch, forming inverted “α” flame, which is conducive to the combustion of inferior coal, and the adaptability of coal is strong.

Push-pull type sluice cleaning device is designed for coal-fired boilers. 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 on both wings of the chain grate steam boiler enables the flue gas to enter the front flue box smoothly, so that the temperature of the front tube plate is the same and lower than 600℃. To avoid the crack of tube plate caused by temperature stress in coal burning boiler. This series of steam boiler is a single boiler longitudinal chain grate coal fired steam boiler products, its drum for a single drum, adopt longitudinal design, grate using chain principle, can automatically send fuel into the furnace.

The boiler adopts the arch tube plate and the threaded smoke pipe to compose the drum, so that the drum is transformed from a quasi rigid body into a quasi elastomer structure, and the pull support parts in the tube plate area can be cancelled to reduce the stress. This series of boiler products has a high thermal efficiency, its thermal efficiency is up to 85%, the level of thermal efficiency determines the operation cost and working time. Its overall compact structure, in the installation and transportation of life is more convenient, does not take up too much space, and easy maintenance, more suitable for mobile units. Coal-fired steam boiler has a high degree of automation. It can control the combustion situation in accordance with the set program, and the operation is very convenient. It can realize automatic ignition, automatic feeding, automatic ash cleaning and other functions.

Chain grate steam boiler fuel from coal scuttle land on fire grate, grate in the chamber of a stove or furnace combustion. Burn after the flue gas passes through the upper arch combustor, the combustion chamber after upward through the casing pipe smoke chamber before entering the tube bundle to smoke box, again by the former smoke box folding after the second beam to smoke box, through the induced draft fan smoke introduction into the duct, dust collector and figure, the back into the atmosphere. For boiler steaming-water systems: demineralized water tank – (deaerator) – pumps – on the economizer – drum – drop tube – water drum (header) – rising tubes (water wall tube) – drum – the main steam valve. The high automatization level of boiler, the boiler feedwater automatic adjustment, high and low water level alarm and interlock protection, low water level, blower interlock protection. Boiler coal, slag, such as mechanized operation, reduce the labor intensity of workers, supporting auxiliary equipment is complete.
 

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