Micronics is the world-wide authority on filter presses and advanced liquid filtration technology. Here, we’ll explore the question – how does a filter press work? We will also examine the applications where they are most frequently utilized, and some of Micronics’ standard and custom filter press solutions.
You will get efficient and thoughtful service from Xuda Filtration.
What is a Filter Press?
A filter press is a piece of equipment used in liquid/solid separation. Specifically, the filter press separates the liquids and solids using pressure filtration, wherein a slurry is pumped into the filter press and is dewatered under pressure. Basically, each filter press is designed based on the volume and type of slurry that needs to be dewatered. Micronics is a trusted expert in liquid/solid separation and offers a wide range of filter press types and capacities to suit specific application needs for trouble-free, economical dewatering. These include configurations such as sidebar automatic, manual overhead, automatic dual overhead beam, stainless steel clad, explosion-proof filter presses, vacuum filter presses, and hand filter presses.
The four main components of a filter press include the frame, filter plates, manifold (piping and valves), and filter cloth, a key ingredient for optimizing filter press operations.
How Does a Filter Press Work?
The working principle of filter presses is that slurry is pumped into the machine such that solids are distributed evenly during the fill cycle. Solids build up on the filter cloth, forming the filter cake; the filtrate exits the filter plates through the corner ports into the manifold, yielding clean filtered water.
Filter presses are a pressure filtration method and as such, as the filter press feed pump builds pressure, solids build within the chambers until they are completely chock-full of solids, forming the cake. Once the chambers are full, the cycle is complete and the filter cakes are ready to be released. In many higher capacity filter presses, fast-action automatic plate shifters are employed, speeding cycle time. Some filter presses are specifically designed for fully automatic, 24-hour operation in a harsh environment such as mines or chemical manufacturing plants.
Filter Press Applications
Filter presses can be built in a wide range of sizes, from small, lab-scale 150 mm presses, to those with much larger capacities, such as those with and mm filter plates. Filter presses are used for liquid/solid separation in an extensive range of industries and applications including:
For more filter press spare parts manufacturerinformation, please contact us. We will provide professional answers.
- Food and beverage processing
- Chemical manufacturing
- Mining and Mineral processing
- Battery recycling
- Power generation
- Steel mills
- Municipal plants
- and more…
Customizing A Filter Press for Your Application Needs
The industry, application, and operational considerations will guide specifics such as the overall design, filtration capacity, number of chambers, filter plate size, materials of construction, as well as additional features/systems such as automatic plate shifters, cloth washing system, drip trays, cake shields, and safety light curtains. Design of a filter press depends on a host of factors such as filtration cycle time, cake dryness required, cloth life, whether manual or automated plate shifting is desired, and many other factors.
Contact the Experts at Micronics
Here is a list of various configurations for filter media.
Drape Over cloth- Twice the length of a plate, a Drape Over Cloth sits on top of the plate and lays down each side. It can be held in place by small nubs, or “dog ears”.
Drape Over Paper- If the cake has a tendency to blind the filter media after one batch, a filter paper can be draped on top of the cloth. When the Filter Press opens to discharge, the paper is thrown out with the cake.
Duplex Cloth- Two separate cloths, each the size of a plate’s single face, are sewn to a gusset that covers the feed hole that runs through a plate. The top and side edges of the cloth either have grommets or Velcro to secure both sides of the cloth to the plate.
CGR Cloth- This Duplex Cloth is shaped to fit in the grooves of a CGR Plate. There is a rope sewn into the cloth’s border that gets caulked into each side of the plate.
Partially Formed Cakes Could Indicate Plugged Drainholes
As filtrate passes through the filter cloth it collects on the plate panel and drains into outlet holes on the corner(s) of the panel. The outlet holes have a channel that goes into the adjacent corner eye. The channel runs between the packing surfaces. Another function of the system is to allow the cake to be dried “blown down” by compressed air. The manifold piping at the end of the press can be valved to let air into the even-numbered plates pushing the liquid thru the cloth/cake/cloth out the odd-numbered plates. Sometimes particles of precoat and bodyfeed pass through the filter cloth and become trapped within the drainage channels plugging or partially blocking them. It can be easy to overlook, since you can’t see into the channels unaided.
Contact us to discuss your requirements of Chamber/Recessed Filter Plate. Our experienced sales team can help you identify the options that best suit your needs.
Comments
Please Join Us to post.
0