Continuous belt vacuum filter

Description

‌ Continuous belt vacuum filter ‌ is a high-efficiency solid-liquid separation equipment, mainly used for filtering, washing and drying materials. It achieves solid-liquid separation by utilizing material gravity and vacuum suction, and is suitable for a variety of industrial fields.
2. Working principle
The working principle of the continuous belt vacuum filter is as follows:
The equipment uses an integral annular rubber belt as a vacuum chamber, and the annular belt is dragged by a motor to run continuously.
The filter cloth is laid on the belt and runs synchronously with it. The belt contacts the vacuum slide and the upper annular friction belt to form a water seal.
The slurry is evenly spread on the filter cloth by the distributor. When the vacuum chamber is connected to the vacuum system, a vacuum filtration area is formed on the belt.
The filtrate passes through the filter cloth and is collected through the transverse grooves on the belt and enters the vacuum chamber through the small holes. The solid particles are trapped on the filter cloth to form a filter cake.
The liquid entering the vacuum chamber is discharged through the steam-water separator. As the rubber belt moves, the filter cake that has been formed enters the filter cake washing area and the washing and drying area in turn.
Finally, the filter cloth is separated from the tape, and the filter cake is discharged at the discharge shaft. The filter cloth with the discharged filter cake is regenerated after cleaning, and then re-enters the filtration area to start a new filtration cycle.
III. Features and Advantages
The features and advantages of the continuous belt vacuum filter include:
It can continuously and automatically complete the processes of feeding, washing, deslagging, filter cloth regeneration, etc., with a high degree of automation.
The material can be washed in multi-stage advection or countercurrent, and the filtrate and washing liquid can be collected separately.
It is suitable for materials with poor filterability and high viscosity, and can achieve thin layer rapid filtration.
The modular design can be flexibly combined and has strong adaptability.
The PLC control is adopted, which is convenient for remote and centralized control.
The filter cloth is not easy to deviate or fold, and the operation is stable and reliable.
IV. Application Fields
Continuous belt vacuum filters are widely used in the following fields:
Metallurgy: used to treat solid-liquid mixtures in the process of ore selection.
Mining: used for tailings treatment, concentrate dehydration, etc.
Chemical industry: used for filtration, separation and purification of chemical products.
Papermaking: used for dehydration, concentration and washing of pulp.
Food: used for filtering, impurity removal and purification of food raw materials.
Pharmaceutical: used for solid-liquid separation and purification in the pharmaceutical process.
Environmental protection: used for sewage treatment, gypsum dehydration in flue gas desulfurization, etc.