Starting method of depolymerization machine system and depolymerization machine system

Abstract

The invention discloses a starting method of a depolymerization machine system, which is characterized in that a frequency converter is connected with a depolymerization machine to realize the speed increase of the depolymerization machine; the rotating speed of the depolymerization machine is increased to be not smaller than 90% of the working rotating speed and lasts for preset time; the depolymerization machine is connected with the grounding protection device through the motor residual magnetism release protector so as to quickly release residual magnetism and induced electricity of the depolymerization machine; the depolymerization machine is disconnected with the motor residual magnetism release protector, meanwhile, the motor residual magnetism release protector is disconnected with the grounding protection device, and then the depolymerization machine is connected with a power frequency power supply to achieve power frequency operation; the frequency converter is started and connected with the next depolymerization machine, and power frequency operation of all the depolymerization machines is achieved step by step; according to the scheme, starting of the depolymerization machine system is completed through one frequency converter, the cost is greatly reduced, later maintenance is easy, residual magnetism release of the depolymerization machine is rapidly completed through the motor residual magnetism release protector, the starting time of the whole depolymerization machine system is saved, and the stability of frequency conversion switching power frequency is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of depolymerization machine control, in particular, to a starting method of a depolymerization machine system. In addition, it also relates to a depolymerization machine system using the above-mentioned starting method of the depolymerization machine system. Background technique [0002] The depolymerization machine is a kind of equipment with large inertia. The motor drives the big pulley to rotate. The big pulley transmits the power to the small pulley, and the small pulley speeds up to drive the main body of the depolymerization machine. The main body of the depolymerization machine is equipped with crushing and classification The set of cutters is driven by the main shaft to rotate, and the agglomerated powder is restored and crushed along the tangential direction, and then the powder particles that have been broken up are discharged through the wind wheel and the top volute cover through the neg...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a start-up method of a depolymerization machine system to solve the problem that each depolymerization machine needs to be equipped with a frequency converter when starting up the existing depolymerization machine system, which is costly and difficult to maintain in the later stage. At the same time, the frequency conversion is switched to In the process of power frequency, the switching time is difficult to control the technical problem

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