First, sum up: The fifties of the 20th century, " Luwa " and " Samesre uther " Company is it make to develop already right away to Scraped film evaporator (also call membrane evaporimeter ) abroad, developed so faring , Scraped film evaporator has already been generally approved and accepted by everybody. HEC Company develops the company as the speciality of the evaporimeter today, in distillation, concentrate , take off angry decolouring , taking off bad smell dry reacting field solve different craft deal with turner and special problem of demand; Offer itIt is the extensive, it use after kinds of Scraped film evaporators of Type not different, for example: 1. Offer 2 suitable and in extensive range , different for one. Various kinds of used are transfered to subdivision Type; 3. Vertical or horizontal structure; 4. The cylinder or awl Type are designed; 5. Obey flowing or adverse current Work introduce;

Characteristic: Scraped film evaporator has the following technological characteristics and other evaporimeters different to some extent mainly: ??It is great to operate the elasticity: Some performance alone because of shaving the membrane device , make it is it deal with apt to form dirt , crystallization , bubble and demand evaporate , high viscidity and raise the supplies that viscidity increase with the density sharply steadily to suitable for, it evaporates course too the function is dealt with steadily;

二、Work introduce
down：
The supplies of two kinds of different boiling point are separated for according to the mixture. In here, hot separation of Product belong to all produce membrane and rapid to work up high speed on mechanical force , Shave the membrane of evaporimeter. After waiting to deal with the supplies and entering Scraped film evaporator, the cloth device had with the rotor at first keeps in touch , assign get tubes of wall even , blow by one group diaphragm accelerated and form in heating surface immediately(0. 5-3. ) liquid film of the interval of 5mm; Form a vortex in every fluid which blows front of the diaphragm (￠ò district ) (see Fig. 1), in surface and blade fluid in the interval under top of heating being a high one rapid to work up very, resulted in conducting heat and spreading the quality strongly , even high viscidity Product produced high hot transmission coefficient under the circumstances that this is moved rapidly 。
▲Scraped film evaporator Work introduce：
Led and inserted such parts as a set of vertical round Axle and rotor heated ,etc. to make up . Is it deal with supplies is it insert set (2 Fig. ) top enter the evaporimeter to heat lying in successively to wait, through lie in cloth device , feed inlet of office assign get vertical Axle inboard wall it, supplies at this moment blow diaphragm accelerate and form a turbulance membrane on heating surface immediately, move forward downwards with the spiral form .
Among course this, whirling person who blows membrane guarantee liquid film even and in succession, prevent the liquid film from heating the surface to form burntly and forming the dirt . Light group copies of material (low boiling point ) form evaporation steam is it rise , carry on vapour liquid separate by vapour liquid separator to flow; Smash and return to evaporimeter cloth mouth in drop or foam that here produce; The gas after separating flows into the top of the evaporimeter and steam two times to export the associative external condenser or make a process, recombinate copy (high boiling point ) along heat surface flow into with track , Type of spiral , evaporimeter bottom (one one second ) , discharge exporting 。