L(P)GZ Automatic Centrifuge

--L(P)GZ Automatic Centrifuge

L(P)GZ centrifuges have a prefect automatic performance and a large processing capacity. In accordance with users' demand, procedures such as feeding, separating, washing, dehydrating and discharging can all be automatically finished followed by remote control. It's suitable for solid-liquid separation of fibroid products as well as suspension which contains fine grains and medium size grains solid. For example: chemical industry products such as: gypsum, ammonium sulphide, bluestone, potassium chloride, borax, dyestuff, resin, pesticide and pharmaceutical products such as: salt, monosodium glutamate, food additive, starch, sugar, flavoring, antibiotic, vitamin and other industries such as mining and environmental protection etc.

Working Principle

L(P)GZ centrifuge is a kind of vertical centrifuge with PLC control, automatic filtration type and down scraping discharging, which adopts continuously running and intermittent discharge. SG centrifuge is semi-automatic centrifuge. Driven by the motor, the drum revolves step by step to the speed suitable for feeding, then the products which is to be separated enter to  the revolving drum through feeding pipe. Centrifuge would stop feeding if the poducts’ volume amounts reach to the predetermined data and the speed raises higher for separation. Suspension’s separation can be made possible by filter cloth (or filter net) under the effect of centrifugal force. Liquid phase is draught out through filter layer and thrown into the empty chamber and finally discharged from liquid outlet while the solid phase remains on the drum to form bucket-shaped filter cake which will be washed in the following steps. When filter cake meets the requirement of  separation, centrifuge will be slowed down to the discharging speed. The scraper begins to take effect and scrape the filter cake from inner wall to the products outlet of centrifuge.

Main characteristics

1.The centrifuge adopts whole enclosed structure with dependable seal facility which is filled with nitrogen to meet the explosion proof demand.

2.Adopted with quick open clamshell structure and the optional swash plate distributor, products can be distributed evenly to reduce vibration caused by unbalanced distribution. With additional washing function, it has a better cleaning effect.

3.The motor is set on top of the machine and directly linked to main shaft which will bring higher transmission efficiency and reduce friction powders.

4.Pneumatic assisted scraper is adopted to remove the remnant filter cake and CIP system is optional to secure clarity to be in accordance with GMP Norm.

5.Frequency control system is adopted to assure a stable start-up. PLC is adopted to ensure a complete automatic process including feeding, filtering, washing and discharging etc. It adopts dynamic (regenerative) braking without friction powder pollution and friction heat, so it is much safer.

6. No need of human supervision. Following security systems are adopted: self-monitoring and protecting system, speed inspection, product level detection, over-vibration protection, over-heat protection for motor, mechanical and electric double interlock for scraper rotary and movement, interlock for lid’s open and machine’s running.