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Operating rules and handling requirements for fan impeller castings
- Sep 26, 2018 -

The fan impeller castings are effective in checking whether the furnace body, furnace door, trailer, wire rope pulley and blower are normal before work, and whether there are unsafe factors such as collapse, breakage and cracking. If it is, it should be properly disposed before it can be opened. Annealing and metal plating on or near the wire should be carefully cleaned using an electric furnace.

When the fan impeller casting is burned, it is necessary to carefully check the explosives in the coal. During the wind stop, the coal seam should not be too thick to prevent gas explosion. The cinder removal should be handled at any time, and no backlog stacking is allowed. Before loading and unloading, check whether there are obstacles on the track groove, whether the hooks, chains and other tools are reliable.

When loading and unloading large castings or thin-walled workpieces, the fan impeller castings must be leveled and stabilized. When carrying out operations, appropriate gaps should be left between adjacent ones. The loading height should not exceed the specified height. Before the furnace is discharged, it should be Clean the refractory bricks and refractory mud on the furnace door and check if the pulling mechanism is easy to use.

When the fan impeller casting is released and transported, the unrelated personnel shall not be close to the sides of the flat car to prevent the sand box or the workpiece from collapsing and injuring people. It is forbidden to rest or stack objects around the stove. When the temperature of the working object is higher than 400 °C, it is forbidden to hoist with chain or wire rope (or take thermal insulation measures) to avoid breakage after annealing. The use of driving to lift work items shall comply with the safe operation procedures of driving and hooking workers.

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