1. The outlet of the sand washing machine is blocked

　　The blockage of the feeding port of the sand washing machine will cause the sand and gravel materials to be unable to be discharged from the equipment smoothly, and will be accumulated inside the sand washing machine, causing the equipment to be blocked and unable to feed. At this time, the sand washing machine should be shut down immediately, the sand and gravel materials accumulated at the outlet of the discharge port should be cleaned up, and then restarted. ​

　　2. The conveyor belt of the sand washing machine is feeding too fast

　　There are clearly defined production standards for how much power the sand washing machine consumes and how much sand and gravel materials to wash. If the conveying speed of the sand and gravel materials adjusted by the conveyor belt is too fast, the processing speed of the sand washing machine will not catch up with the feeding speed, causing the sand washing machine to enter the The feed port is blocked. In this case, the sand washing machine should be sped in time, the excess material accumulated at the feeding port should be cleaned up, and the conveying speed of the conveyor belt should be adjusted to an appropriate speed.

　　3. Moisture content of machine-made sand raw materials

　　If the water content of the raw materials of the machine-made sand is too large, it is easy to stick to the feeding port during the sand washing process. If it is not cleaned regularly, it may cause the feeding port of the sand washing machine to be blocked. In this case, the water content of the raw materials of the machine-made sand should be well controlled, and the feeding port should be cleaned regularly.