Dehumidifier air duct and exhaust fan duct into the cabin all kinds of equipment in place

Surface treatment of steel plates before sand blasting. The flashing edge of the steel plate is turned into a blunt surface, the welding spatter is removed, the surface damage is repaired or smoothed, and the marking paint and chalk, stone handwriting are removed. Preparation before sandblasting. To ensure the construction environment before sand blasting, it is protected from rain, moisture and explosion. The canopy is separated from the outside by a canvas frame. The canvas frame should be fixed to the deck and separated from the deck by rubber at the bottom of the shelf to prevent sparks from colliding.

The dehumidifier air duct and the exhaust fan duct are in the cabin, and various equipments are in place and functioning normally. The temperature and humidity in the cabin are measured to meet the construction requirements. The painter sandblasted the sandblast measurement approval. Sandblasting. Sandblasting the cabin siding from bottom to top. The construction personnel conduct self-inspection on the construction quality and re-blast the unqualified areas. The vacuum sand absorbing machine absorbs and recovers the bilge waste sand. After the blasting is completed, the painter checks and re-processes the places where the requirements are not met. After sand blasting acceptance, the residual sand in the bilge is removed, all the rubber wraps in the cabin are removed, the cabin is cleaned and vacuumed, and the painter and the ship are recognized.

For parts that are difficult to reach with sandblasting, the power tools are used to remove rust and reach St3.0. Wrap the unpainted parts with a newspaper or the like. Pre-painted and painted. Before pre-coating and painting, all the power cables in the cabin were replaced with explosion-proof wires, and the lamps used 36V explosion-proof lamps. Construction personnel should wear clean anti-static overalls, and the foot cover should enter the construction site, and the construction environment should meet the construction requirements.