The feeding control and automatic protective device of rock sand maker

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April 22, 2019 at 2:47 am #74059676 You must be logged in to reply
Avatar of crusher007 Rank: Grinder
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The control of a rock sand maker mainly refers to the control of the feeding granularity. Now many quarrying plants use blasting to make stone materials, which means that the granularity of the stone will be uneven and the sizes will be different and the side length of the biggest one may reach over 2m. Even though the feeding size of a rock sand maker is different, but stone materials with so big size will bring huge pressure to the electric motor and force it to rotate with limit velocity. This will not only cause huge impact to the rock sand maker and reduce its service life, but cause it to stop. After silica sand processing plant is stopped, the crushing chamber must be cleaned by the workers and it can only be restarted after all the stone materials are removed. For this reason, a rock sand maker must be equipped with an ampere meter to monitor the working state of the rock sand maker. When it reaches the highest current value, the vibrating feeder must be stopped.
The automatic protective device of a rock sand maker is a tachogenerator which will turn the number conversion of the electric motor into the signal of speed. The working principle is simple, but it is very effective. When the feeding speed is too high which causes overload of the electric motor, the number conversion will be low, and if the number conversion reaches the low-speed limit, it will automatically turn off the switch of the feeder machine. Then the feeder machine will stop feeding, but the rock sand maker will continue to work. When the rotating speed the rock sand maker constantly improves and reaches the top thread position, the feeder machine will be turned on for material feeding. This method can effectively control rock sand maker to avoid overload, reduce the stoppage times. In addition, it is necessary to control the material feeding speed to protect the feeder machine.

May 15, 2019 at 4:05 am #74068434 You must be logged in to reply
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