On-site video display of sodium alginate washing equipment

　　The technological process of sodium alginate is as follows: dry or wet seaweed (algae) is crushed, washed with water to remove impurities, extracted with strong alkali water and clarified to obtain crude alginate solution, precipitated with calcium chloride to obtain colored calcium alginate, decolorized and deodorized, treated with acid to remove soluble impurities to obtain alginate precipitate, reacted with sodium carbonate to obtain sodium alginate, and then dried, crushed and sieved to obtain sodium alginate powder.