The process principle of the flat top discharge centrifuge can be divided into the following three core parts:
1、 Equipment structure composition
1. Drive system
Composed of a motor, spindle, and control system, it drives the centrifugal drum to rotate at high speed, and the speed can be adjusted through a variable frequency speed control system.
2. Core components of centrifugal drum
The centrifugal drum consists of upper and lower plates, partition plates, and filter cloth (or mesh). The filter cloth serves as a filtering medium to assist in solid-liquid separation, while the partition plate is used to support the filter cloth and guide the liquid discharge path.
3. Upper unloading mechanism
Equipped with manual or automatic scraper device, used to scrape solid materials from the inner wall of the centrifugal drum at low speed and discharge them through the upper discharge port.
2、 Process flow steps
1. Feed and centrifugal separation
The material enters the high-speed rotating centrifugal drum through the feed pipe, and under the action of centrifugal force, the liquid phase is thrown out through the filter cloth and the pores of the drum wall to the inner wall of the casing, and discharged through the outlet pipe; The solid phase is trapped by the filter cloth to form a filter cake.
2. Washing and fine filtration (optional)
After the filter cake reaches the rated amount, stop feeding and rinse the filter cake with washing solution. The washing solution is also discharged through centrifugal filtration to achieve further purification.
3. Scraping and Unloading
The centrifuge slows down to low speed operation, and the manually or automatically operated scraper device gradually cuts into the filter cake layer: first radially cuts in and then axially advances, scraping the filter cake down to the discharge port for discharge.
3、 Core process characteristics
1. Separation controllability
Support medium and high-speed feeding, adapt to different material characteristics (such as hardness and viscosity) by adjusting the speed and scraper action parameters.
2. Process flexibility
The duration and operation mode of feeding, washing, unloading and other stages can be customized according to the material status, suitable for separating loose or hard filter cakes.
3. Closure and safety
Adopting a relatively enclosed structure design, some models are equipped with safety mechanisms such as vibration protection and motor overload protection.
The above process principles integrate centrifugal force field separation, dynamic control of filter cake, and mechanical unloading technology, and are suitable for the efficient solid-liquid separation needs of industries such as pharmaceuticals, chemicals, and environmental protection.