Thin film wiped evaporator is a new developed machine special for the high concentration ointment and food paste ,like tomato paste, honey jam etc. Vacuum scraper concentrator is using the special scraper agitator which can make inside product move under concentrator ,So the product will not stick to the inside shell wall of the concentrator tank .that can be get very high viscosity final products.

The shell of the thin film wiped evaporator  is equipped with a heating steam jacket, which is equipped with a rotatable blade, that is, a scraper. There are two types of scrapers: fixed type and rotor type. The gap between the former and the inner wall of the casing is 0.5-1.5mm, and the gap between the latter and the wall changes with the number of revolutions of the rotor. The feed liquid is added from the upper part of the scraper concentrator along the tangential direction (also added to the throwing disc coaxial with the scraper). Due to the action of gravity, centrifugal force and rotating scraper, the solution forms a swirling film on the inner wall of the vessel, and is evaporated and concentrated in the process to complete the liquid discharge at the bottom. This concentrator is a single-pass type concentrator that uses external power to form a film 

1. The scraper evaporator has high efficiency and large capacity, and the evaporation capacity of water and organic solvents is 100-300Kg/h.

2. The material to be treated in the scraper evaporator has a short residence time on the evaporation surface, about ±10 seconds, without coking and scaling.

3. The wiper evaporator can realize low temperature evaporation under vacuum conditions.

4. The scraper evaporator is suitable for continuous production, with large operation flexibility, simple structure, easy maintenance and automatic control.

5. The scraper evaporator changes the inclination angle of the groove on the outer side of the scraper, and can adjust the residence time of the material in the evaporator to meet the needs of the evaporation of materials with different viscosities.

6. All parts and equipment in contact with the material and liquid of the scraper evaporator are made of stainless steel, so as to keep the material and liquid from being polluted.

7. The top of the wiper evaporator is equipped with a quick-open cover, which is convenient for brushing the heating tube. There are light holes and sight glasses on both sides of the top for easy observation during operation. 

 Thin film wiped evaporator includes concentrator tank equipped with scraper agitator, condenser, sub-cooler，water/gas separator,collection tank,vacuum pump and pipeline etc.