A simulated moving bed separation device comprising a column, beds Ai of adsorbent separated by plates Pi with a single distribution and extraction network for fluids, in particular feed F, desorbant D, raffinate R and extract B, and a plurality of two-way valves for distribution of said fluids, said valves being limited in number compared with the prior art. The heat sink has at least one conductive side, two ends, multiple chip units and two connecting bases. The mobile terminal may be configured to display an image captured or focused using a camera at the mobile terminal.