Filtration Design and Separation

The choice of the proper combination of filter area, filter cloth and cycle time, for the most efficient filtration of a product, is accurately determined using the three-step method pioneered by Straight Line Filters, Inc.

If you can do it on a Buchner - A Straight Line can do it - continuously
  
Step 1 - Laboratory Study
A small, representative sample is all that is necessary for this preliminary step. With this sample and pertinent information about your requirements for filtrate and cake recovery, we develop the essential parameters needed to design a filter for your process. Tests are done in our laboratory on a modified Buchner Funnel. These test kits are available from Straight Line Filters, Inc. Our Buchner test develops information relating to the controlling factors: times for cake formation, washing and de-watering. Curves, such as those shown in the graph below, are developed for these functions. Knowledgeable interpretation of these curves and their relation to process requirements, allows us to determine the individual cycle times and to recommend equipment sizing. Cake and filtrate samples together with detailed test report are submitted along with equipment recommendations. Special laboratory procedures using the Buchner Funnel have been developed to evaluate other process operations such as countercurrent washing, leaching and chemical treatment.
  

Step 2 - Pilot Plant Study

A complete filtration system is set up at our Wilmington Plant with feed and level controls and other auxiliaries necessaries for demonstrating of the capabilities of the Straight Line Filter system. Pilot study normally is suggested in order to confirm rate data on a continuous basis and to familiarize a potential customer with the operation and simplicity of this equipment.
  

Step 3 - Rental Program

Straight Line Filters, Inc. rental equipment provides an economical method of in plant verification of test results under production conditions, development of plant operating procedure, production of product for further evaluation and determination of final design.

Our Standard rental machine is the packaged model 1 x 3 described on our filters page. Data obtained by operating this filter are directly scalable to production size equipment