Disc Bowl Centrifuge

1866 Words8 Pages
TITLE: Experiment 8 Disk Bowl Centrifuge OBJECTIVES: * To understand disc bowl centrifuge working principle * To demonstrate the separation of heavy phase liquid * To demonstrate the effect of product type as throughput * To calculate the separation efficiency INTRODUCTION: Centrifugal separator is a type of equipment that used to separate solids from liquid or liquid from liquid by using centrifugal force. In this experiment, we are going to investigate the liquid-liquid separation for oil and water liquid of different density by virtue of spinning at relatively high speeds. There are two major types of centrifuge which are tube bowl centrifuge and disc bowl centrifuge where both can be used for either liquid-liquid separation or solid-liquid separation of different density. For disc bowl centrifuge, the feed is admitted near the base and passes up though holes in the disc inverted cones separated at 5mm apart. Disc centrifuges usually range from 10 cm to 75 cm in diameter. Separation occurs as the heavy phase liquid (oil) experiences a higher magnitude of centrifugal force causing it to settle on the outer ring while the lighter phase liquid (water) is collected on the inner collecting ring. Both the frequency of the centrifugal speed and density difference between the two types of liquid will affect the separation process and separation efficiency. MATERIALS AND EQUIPMENT: a. 1 L beaker x 3 b. 250 ml measuring cylinder x 2 c. Weighing scale d. Water and cooking oil e. Disc bowl centrifuge unit. Fig 1: Disc Bowl Centrifuge A. Disc rpm Meter B. Frequency Inverter C. Mixing Tank D. Disc Bowl E. Liquid Collecting Outlet F. AC Motor G. Main Power Switch ON/OFF RESULTS AND CALCULATIONS: water :oil = 1:1 | | | | m(kg) | V(ml)

More about Disc Bowl Centrifuge

Open Document