Paper Tape Filter

Here is an introduction to the tape filter machine:

• Basic Concept: A belt filter is a commonly used equipment for solid-liquid separation, primarily used in industrial production to filter and separate solid particles from liquids. It utilizes a belt as the filtering medium, trapping solid particles on the belt to achieve solid-liquid separation.

• Composition Structure

◦ Feed System: Includes equipment such as feed pipes and pumps, designed to deliver unprocessed liquids into the interior of the filter.

◦ Filter Medium: Typically, a specialized paper tape made from cellulose or synthetic materials is used, which has certain strength and filtering properties.

◦ Filter Zone: The area where the belt passes through, where the liquid is filtered and solid particles are trapped on the belt.

◦ Pressing Equipment: Such as squeezing rollers or plates, used for squeezing paper strips to enhance solid-liquid separation.

◦ Cleaning System: Includes spray nozzles or brush washers, etc., for cleaning solid particles off of tape.

Waste Collection System: Such as waste collection tanks or conveyors, used for collecting solid particles trapped on the paper tape.

Control System: Used to control the entire filter machine's operation, including functions such as start, stop, and adjustment.

• Principle of Operation: The gravity-fed belt filter utilizes the natural gravity of the liquid to pass through the filter fabric, separating impurities and achieving the purpose of liquid purification. When the impure fluid flows onto the non-woven fabric, impurities are isolated by the filter fabric, forming a filter cake. As the filter cake thickens, the fluid level rises, triggering the float level controller to send a signal. The reducer then starts, dragging the filter fabric, and the impurities and soiled fabric fall into the waste paper box, enabling automatic filter fabric replacement. After the filter fabric is updated, the fluid level decreases, the reducer stops rotating, and the machine enters the next filtration cycle. The forced-belt filter, on the other hand, relies on atmospheric pressure for forced filtration, such as vacuum, positive pressure, or Hoffman types, achieving a higher filtration effect.

• Primary Categories:

Gravity-fed Belt Filter: Includes flat belt filter, drum belt filter, arc belt filter, plate and frame belt filter, etc., with general filtration capacity of 50L/min-2000L/min, filtration accuracy of about 15-20 micrometers, small land area required, suitable for single-machine filtration.

High-Pressure Belt Filter: Including vacuum belt filter, positive pressure belt filter, and Hoffman belt filter, capable of a flow rate of up to 5000L/min with a filtration accuracy of 10 microns. It features fully automatic filtration with flushing, degreasing, and aeration systems.

• Application Fields: Widely used in the chemical industry for filtration and dehydration during chemical production; in the pharmaceutical industry for liquid filtration and purification; in the food industry for clarifying juices, alcoholic beverages, etc.; in the environmental protection industry for solid-liquid separation and wastewater treatment during sewage treatment; in the machining field, it is an ideal auxiliary machine for various grinding machines, capable of filtering out various metal and non-metal fine impurities from coolant.