Introduction of working principle
The feeding device is used to add the original sand into the rolling reheating furnace. When the furnace is rotating, the sand will not run out and heated to a certain temperature in the furnace. Starting the mixer, the sand will be discharged into the pelvis of the mixer. The sand is evenly mixed with the resin in the mixing chamber of the mixer. Add the solution of the mixture of urotropin, and mix it till the sand will be loose. Then add calcium stearate and then mix it for 45 seconds. The sand discharged will flow into the vibrating cooling screen below the mixer and store fully after cooling. The phenol formaldehyde resin is related to the sand strength, the urotropin is the curing agent, the calcium stearate strengthens the fluidity of the sand, and the sand is unloaded into the machine basin after heating in the drum heating furnace to make the finished product and make the finished product.