Inspection of heating surface of waste heat boiler Before assembly or installation, the evaporator, superheater and steam and water pipes supplied by the manufacturer shall be inspected according to the specification requirements, and records shall be made. Set up a combined platform with steel buttress and profile steel, lift the heating surface components onto the platform, carry out purging and ball passing or individual pressure test, and cover the pipe orifice for protection after completion to prevent sundries from entering. If there is any defect on the heating surface, it should be treated immediately to avoid difficult correction after installation.

Waste heat boiler of cement plant Installation sequence of heating surface: from one end of the boiler longitudinal to the other end.

Before hoisting, each group of heating surfaces shall pass the ball passing and monomer tests after assembly. The degree of combination depends on the weight of components and lifting equipment, or it can be lifted by single piece. During hoisting, each segment group shall be strictly distinguished. Lift the heating surface tube group to the upper part of the boiler with a truck crane, lower it from the upper part to the installation position, and lift the heating surface tube group to the plate beam. Install the evaporator tube group according to the installation sequence and the above methods and requirements. In the above installation process, the segment shall be butt welded with the socket on the inlet and outlet headers.

install Waste heat boiler of cement plant First, the drum steel structure shall be installed to be qualified. Before hoisting, the drum shall be placed in a clean space, with 400mm padding at both ends (away from the support position). The drum part with the support shall be cleaned of dirt, polished with emery cloth, and then placed on the support to check the contact condition. Fine inspection and marking shall be carried out according to the specification requirements. If the equipment is not marked out or punched with bullet holes when leaving the factory, draw the center line vertically along the upper, lower, left and right edges and punch holes according to the main pipe socket. Appearance, thickness measurement and spectral re inspection shall be carried out for the steam drum shell, and ultrasonic flaw detection shall be carried out for the welds of the steam drum pipe seat. Use a crane or mast to place the two bases of the inspected drum on the furnace top for alignment. Hoist the drum with crane or mast. After the trial lifting is normal, the crane shall be lifted formally, placed on the support, and the elevation, center and level shall be aligned. The lifting rope buckle shall be removed after it is qualified. Before flushing, open the manholes at both ends, remove all the internal devices that can be removed, conduct cleaning inspection, and then restore them. Pay attention to printing, numbering, and repairing the missing welds according to the drawings during installation. Padding places shall be padded as required, bolts shall be tightened, and tools and parts shall not be forgotten before door sealing.