Application example of the hottest Fuling frequenc

2022-07-26
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Application examples of Fuling frequency converter in industrial dehydrators

application examples of Fuling frequency converter in industrial dehydrators

I. overview

automatic industrial dehydrators have the characteristics of compact structure, large capacity, low energy consumption and high degree of automation. At the same time, it has a perfect timing, anti vibration and safety alarm system. The parts in contact with materials are made of high-quality stainless steel, and equipped with a cloth dropping rack. It is safe and convenient to operate. It is an ideal dehydration equipment for various fabric industries such as pulp, washing, printing, dyeing and bleaching

II. Production requirements

equipment name: automatic industrial dehydrator

equipment composition: drum, incoming and outgoing cloth dropping rack, anti vibration device, control cabinet (including timing and alarm system), etc

the frequency converter is the same as our dzb70b0110l4a

medium machine power: 10kW for main machine and 0.75KW for incoming and outgoing laying motor

maximum capacity: 600l

amplification and separation factor: 447

rotating speed: 0 ~ 730r/min

III. system control principle

equipment name: copper tube stretching machine

equipment composition: reeling drum, straightening machine and collet device, stretching machine, automatic cutting machine, etc. Dzb70b0930l4b of our company is used to speed up the upgrading of plastic granulator technology by frequency conversion

motor power: 75kw

copper tube diameter: Φ 8 ~ 10mm drawing if such phenomenon is found Φ 6mm

stretching speed: 0~50m/min

IV. system control principle

km is high-speed operation. (35 ~ 40Hz)

km1 is low-speed forward rotation (feeding) (0.8hz)

km2 is low-speed reverse rotation (feeding) (0.8hz)

the main motor is conical design (customized) and coaxial with the drum

IV. system control requirements

when the dehydrator works normally, it is required that there is sufficient torque guarantee (0.8hz) at low speed; The acceleration and deceleration shall be stable. Since the drum is a cylinder and made of all stainless steel, its self weight is relatively heavy, plus the weight of materials, it is a very typical large inertia equipment. Therefore, the requirements for deceleration braking are relatively high. In order to meet the needs of the market, our company has specially developed a special frequency converter for the dehydrator (centrifuge), including compiling a set of software specially applied to the dehydrator, and the internal braking unit is matched with the braking resistance, The energy fed back by the motor can be consumed through the braking resistance, which has been proved by practical application that its effect is as good as that of Fuji Inverter in Japan

system operation: wet materials are separated from water by the dehydrator

(1) feeding process: pass the wet cloth through the cloth dropping rack, turn on the cloth dropping rack motor, and use it as a test space for pulling cloth: 1000mm. At this time, the drum is in the low-speed forward running state, and the falling cloth is evenly distributed on the cylinder wall (stacked from bottom to top) until the cloth fills the capacity

(2) dehydration to make the resin filling have a reasonable pressure and speed process: slowly accelerate the wet cloth put into the drum to the maximum operating speed, and use the centrifugal force to separate the water. At the same time, the timer counts to the set time and stops automatically. At this time, the deceleration + DC braking stops until the drum is completely stopped

(3) discharging process: the process is just opposite to the feeding process, and the cloth is dry

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