Langley Separation and Process has many years of knowledge and process experience with the mechanical belt filter press, representing a complete selection of Belt Presses to serve a wide range of processing applications from conventional municipal waste and industrial sludge to high solids mineral dewatering. Additionally, Langley Separation and Process can also service, rebuild, support and source OEM parts for many belt press brands, such as DRYCAKE, Ashbrook Simon Hartley, Andritz, Komline Sanderson, Envirex, Roediger, Enviroquip, Pilgrim, US Filter, Siemens, Sernagiotto, and Sernatech.
Belt presses are a common type of mechanical dewatering equipment used to dewater most biosolids generated at municipal wastewater treatment plants and many industrial applications. Belt presses are used to remove water from liquid wastewater residuals and produce a non-liquid material referred to as “cake”. The Belt Filter Press is a broadly applicable product for dewatering municipal biosolids and industrial sludges. Since this is a continual process, it is effective on high-volume waste streams where a large production of low-quality filter cake is acceptable.
Many belt press designs and filtration processes are available, but all incorporate the following basic features: polymer conditioning zone, gravity drainage zones, low pressure squeezing zone, and high pressure squeezing zones. A belt filter dewaters biosolids or industrial sludges by applying pressure to squeeze out the water or liquid phase. Belt Filter Presses are available in a three-belt, a two-belt, and an extended gravity two-belt design. Advanced designs provide a large filtration area, additional rollers, and variable belt speeds that can increase cake solids.
For more details on how belt presses operate, and to learn more about belt press parts, components, and applications, see https://langleyseparation.com/equipment/belt-press-manufacturers/.
The latest DRYCAKE Belt Press technology has been developed to obtain higher flow rates and achieve cake dryness never reached by other belt presses with the same belt working width. This dewatering performance is thanks to new and innovative design features that include:
The mechanical components have been sized to guarantee reliability even in severe conditions. The DRYCAKE Belt Press is suitable for all municipal and industrial applications.
DRYCAKE belt presses are designed for dewatering both municipal and industrial sludges. The new modular frame concept combines outstanding performance with low capital costs, thus maximizing the costs/benefit ratio. These are suitable to treat a wide range of sludge types and concentrations: The “Standard” version of the machine is designed to dewater sludges with typical solid concentration, while the “Cascade” version combined with a belt thickener option suits very dilute sludges. The modular high pressure zone is also available with 8 rollers and can optionally be converted to an 11 rollers zone, adding 3 roller modules to further increase final sludge cake dryness.
A simple and cost effective Belt Press for dewatering of biological sludges, municipal and industrial features a compact enclosed design including a high pressure zone with 6/8 rolls. This design requires minimal space while providing efficient operational results. Frames are available in hot dip galvanized or stainless steel construction.
Selection of the basic machine is a function of the type of sludge and feed solids.
The design criteria for biosolids belt press applications are sized on the basis of weight or volume of solids to be dewatered rather than the wastewater flow to the plant. To determine what size or how many presses are needed, the wastewater treatment plant must:
Ancillary equipment for efficient operation of a belt press in a biosolids application includes:
Pilot units are essential for testing your process and proving out your specific dewatering application. On site pilot unit testing provides the opportunity to test a variety of conditions, configurations and operating parameters. Langley Separation and Process can assist with setting up and running the pilot equipment to determine the optimal belt press configuration and operating conditions.
Langley Separation and Process can arrange for a rental belt press. These pilot presses are available in a variety of sizes and come complete. All you need to do is add an air supply, connect your feed tank and start testing.
Langley Separation and Process can also assist with optimizing your current unit, planning a production change or working through a filter press problem. If you are experiencing issues with cake dryness or filtrate quality, making the changes necessary to investigate the problem can be difficult if you can’t take your belt press offline. So if you want to test different treatment chemistries, filter belts, or changing cycle parameters then renting a pilot unit makes perfect sense.
Langley Separation and Process can assist with submitting customer samples to one of several fully staffed, state-of-the-art laboratories for determining the most effective liquid/solids separation chemistries and techniques for each specific application. In addition to ensuring a better informed equipment purchase, this customer-focused service will also help you determine and maintain maximum performance of your belt press. To schedule services performed by one of our state-of-the-art testing labs, please contact Langley Separation and Process.
Langley Separation and Process can also service, rebuild, support and source OEM parts for many belt press brands, such as DRYCAKE, Ashbrook Simon Hartley, Andritz, Komline Sanderson, Envirex, Roediger, Enviroquip, Pilgrim, US Filter, Siemens, Sernagiotto, and Sernatech. Available parts include:
Langley Separation and Process can deliver individual filter presses and / or complete dewatering systems featuring custom automation / control panel, pumps, pipe work, feed / receiving tanks, polymer systems, mixers, skid packages, discharge augers, platforms and other accessories and options.
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