SZL series coal-fired steam boiler

Introduction of SZL series coal-fired steam boiler

SZL series vertical dual drums chain grate water tube steam and hot water boiler, adopts quick fitting and assembly structure. The 4-6t/h boiler is of quick fitting tube structure, exit shop after completely assembled, the boiler of 6-35t/h is composed of 2 main components. The upper assembled component is the boiler proper heat absorbing part, and the lower assembled component is of combustion equipment. The former part of the boiler proper is arranged a membrane wall, the upper part of it is connected to boiler cylinder, and its lower part is connected to collective chest, so as to form a combustion room and absorb the radiated heat from the furnace. Its rear part is arranged with dense convection tubes between upper and lower boiler cylinders. The high temperature smog after combustion shall stand for twice returning flushing transversely to the heat accepting surfaces, and shall be introduced to coal saver singly arranged, and flow into duster and exhausted from chimney in the end.

Features of SZL series coal-fired steam boiler

1. Tubes and flanges are welded together by robot.

2. Chain grates are all made by ZOZEN and before delivery the chain grates must be tested in cold state for 48 hours.

3. Chain grate combustion furnace with reasonable arch structure and air distribution can fit different fuel.

4. Secondary air is input to disturb fuel gas in the furnace, to ensure the fuel is burnt totally. The independent secondary fan makes it easy to control and adjust the air volume and air pressure.

Control and Safety System

1.The control and safety systems are interlocked in an electric control cabinet.

2. Alarm system

Sound-light alarm of high and super-high steam pressure;

Sound-light alarm of high and lowe water limit level;

Sound-light alarm of pressure loss in the water pumps;

More safety devices are designed and connected with the electric control cabinet (ECC).