Electrical control loop and control method of motor of dehydrator

Abstract

The invention discloses an electrical control loop and control method of a motor of a dehydrator. The electrical control loop is composed of a motor main loop body and an electrical control loop body, three phase wire inlet ends A, B and C of the motor main loop body are connected with a contactor C1, a contactor C2 and a contactor C3 respectively through breakers K, the contactor C1, the contactor C2 and the contactor C3 are connected with the phase A, the phase B and the phase C of a winding of the motor M respectively, and the electrical control loop of the motor is composed of a branch loop 1, a branch loop 2, a branch loop 3, a branch loop 4 and a branch loop 5. According to the electrical control loop, the dehydrator can be steadily started, the shutdown time can be reduced in the shutdown process, the small power is adopted to drive the dehydrator to rotate in the starting process of the dehydrator, and therefore the dehydrator is accelerated slowly to reach the normal rotating speed. When the dehydrator is started, steady starting is achieved. When the dehydrator is shut down, a reverse voltage is added to the motor, the motor is affected by reverse rotating force to rapidly stop rotating, and therefore the inertial rotating time of the motor is reduced, and therefore the speed-down process and time are reduced.

Description

technical field [0001] The invention relates to an electrical control circuit and a control method of a dehydrator motor, in particular to a casting [0002] The electrical control circuit and control method of the motor of the chip dehydrator. Background technique [0003] Castings are generally cast and formed first, and then cut with metal cutting machine tools. During the cutting process, a certain amount of chips adhered to the cutting fluid will be produced. Metal shavings can be remelted and recast into castings. Especially cast iron chips containing high alloy composition, such as cast iron chips of high nickel, high SiMo and other types of cast iron. However, because the chips contain cutting fluid, they cannot be directly added to the melting furnace for melting, so after recycling, they must be dehydrated and dried first. [0004] The dehydration method generally uses centrifugal method, and the centrifugal force can remove most of the residual liquid in the c...

AI Technical Summary

Problems solved by technology

When the motor is started, the rotating part is driven by the belt to reach the dehydration speed instantly from the stop state, because the rotating part is driven from the static state to rotate at a high speed and it is not balanced, the shaking will be very severe during the starting process; and the dehydration ends. When stopping the rotation, due to the inertial force, it will not stop with the motor, but gradually reduce the speed for a period of time and then stop slowly, which affects the efficiency of dehydration

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