Extruder protection device and protection method for plastic film recovery system
A protection device and recovery system technology, applied in the field of extruder protection devices, can solve the problems of extruder machine damage, high equipment failure rate, and large occupation of human and material resources, so as to reduce the failure rate and save maintenance costs.
Pending Publication Date: 2017-10-10
ANHUI GUOFENG PLASTIC
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Problems solved by technology
However, such a set of equipment often has a very high failure rate due to reasons such as high load, high speed, and high temperature.
The extruder is the core part of this set of equipment. If the extruder (including drive frequency converter, extrusion screw, drive motor, etc.) is damaged, it usually needs to be shut down for several hours to repair, which takes up a lot of manpower and material resources.
Method used
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Embodiment Construction
[0014] The present invention will be further described below in conjunction with accompanying drawing:
[0015] Such as figure 1 As shown, the extruder protection device of the plastic film recycling system in this embodiment includes a main extruder protection device, a feeder protection device and an intelligent protection device. The main extruder protection device includes a frequency converter V1 and a circuit breaker QF1 , QF2, QF3 and intelligent ammeter PA1, the incoming terminals of circuit breakers QF1, QF2 and QF3 are respectively connected to the three-phase lines A, B and C of the power grid, and the outgoing terminals are connected to the inverter V1 through reactors L1, L2 and L3 respectively. The incoming line end is connected, the outgoing line end of the inverter V1 is connected with the main extruder M1, the incoming line end of the intelligent ammeter PA1 is connected with the grid A phase line through the circuit breaker QF4, and the outgoing line end is c...
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The invention relates to an extruder protection device and protection method for a plastic film recovery system. The extruder protection device comprises a main extruder protection device body, a feeding machine protection device body and an intelligent protection device body; the main extruder protection device body comprises a frequency changer V1, a breaker QF1, a breaker QF2, a breaker QF3 and an intelligent ampere meter PA1; the wire feeding ends of the breaker QF1, the breaker QF2 and the breaker QF3 are connected with three-phase wires A, B, C of a power grid, the wire discharging ends of the breaker QF1, the breaker QF2 and the breaker QF3 are connected with a wire feeding end of the frequency changer V1 through an electric reactor L1, an electric reactor L2 and an electric reactor L3 correspondingly, and the wire discharging end of the frequency changer V1 is connected with a main extruder; and the wire feeding end of the intelligent ampere meter PA1 is connected with the A-phase wire of the power grid through a breaker QF4, the wire discharging end of the intelligent ampere meter PA1 is connected with the null line N of the power grid, the circuit between the breaker QF3 and the electric reactor L3 is connected with a current transformer T1 in series, and two wiring ends of the current transformer T1 are connected with a coil of the intelligent ampere meter PA1 correspondingly. By means of the extruder protection device and protection method, the fault rate of the extruder is lowered, and the maintenance cost is saved.
Description
technical field [0001] The invention relates to an extruder protection device, in particular to an extruder protection device of a plastic film recovery system and a protection method thereof. Background technique [0002] When the production line is in normal production, the scraps cut off, the unqualified products crossed out, and the film produced when the film is broken need to be recycled. At this time, extruders, feeders, wire drawing machines, pelletizers, etc. are needed. equipment. However, such a set of equipment often has a very high failure rate due to reasons such as high load, high speed, and high temperature. The extruder is the core part of this set of equipment. If the extruder (including drive frequency converter, extrusion screw, drive motor, etc.) is damaged, it usually needs to be shut down for several hours to repair, which takes up a lot of human and material resources. Now it is advocating cost reduction and efficiency increase, and reducing equipme...
Claims
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Login to View More IPC IPC(8): B29C47/96B29C48/96
CPCB29C48/96Y02W30/62
Inventor 刘楚新
Owner ANHUI GUOFENG PLASTIC