Scraper evaporator, it is a kind of new type and highly adaptable evaporator, high
viscosity, heat sensitive and easy to crystallize, easy toscaling materials are all
applicable.Which is mainly composed of heating jacket and scraper, heating steam inside
the jacket, scraper mounted on a rotatable shaft, there is a small gap between scraper
and the inner wall of heating jacket, usually 0.5 ~ 1.5 mm.After the material liquid is
preheated, it is feed from the upper part of the evaporator along the tangent direction.
Under the action of gravity and the rotating scraper, it is distributed on the inner wall
uniformly and form the underspin film, the raw material is continuously evaporated and
concentrated in the falling process. The finished liquid is discharged from the bottom and
the secondary steam comes out from the top.In some occasions, the evaporator dries the
solution and produces a solid product directly at the bottom.
Features of scraper evaporator:
1.The scraper evaporator has high efficiency and great capacity, and the evaporation
capacity of water and organic solvents is 100-300kg /hꞏm2.
2.The scraper evaporator is treated by the material in the evaporation surface of the
residence time is short, about ±10 seconds, no coking, no scaling.
3.The scraper evaporator can realize low temperature evaporation under vacuum
condition.
4.The scraper evaporator is suitable for continuous production, the operation is elastic,
the structure is simple, easy to maintain, can carry out automatic control.
5.The scraper evaporator changes the inclination Angle of the groove on the outside of
the scraper and can adjust the time of material staying in the evaporator to meet the
needs of material evaporation with different viscosity.
6.The parts and equipment of the scraper evaporator that contact the material liquid are
all made of stainless steel, so as to keep the material liquid from being polluted.
7.The scraper evaporator is equipped with quick-opening cover plate on the top to
facilitate the cleaning of heating tube.On the top of both sides of the lamp hole, vision
mirror, easy to operate in the observation.
Application range of scraper evaporator:
Scraper evaporator is widely used in petroleum, chemical, pharmaceutical and other
industries, especially for high viscosity (such as vegetable extracts, honey, etc.) and easy
crystallization, scaling, heat sensitive materials.
2. Specification:
Effective
heating
area m2
Main technical parameters
Equipment
total
height mm(A)
Heat
cylinder
height
mm(B)
Separator
height
mm(C)
Bottom
seal
head
height
mm(E)
Heat cylinder
diametermm(Dn)
Jacket
diametermm(Do)
Motor
powerkw/h
0.5 2850 880 500 270 273 377 1.1
1 3500 1200 650 235 325 426 1.5
1.5 3750 1500 650 250 377 500 1.5
2 4350 1850 680 315 400 500 2.2
3 4650 2130 750 330 500 600 4
4 5500 3000 750 330 500 600 4
6 6700 3660 800 350 600 700 7.5
8 6700 3600 800 350 800 900 7.5/11
10 7200 4000 850 420 900 1000 11
…… …… …… …… …… …… …… ……
40 14500 8810 1400 1950 1800 1950 37/45
Scraper evaporator, it is a kind of new type and highly adaptable evaporator, high
viscosity, heat sensitive and easy to crystallize, easy toscaling materials are all
applicable.Which is mainly composed of heating jacket and scraper, heating steam inside
the jacket, scraper mounted on a rotatable shaft, there is a small gap between scraper
and the inner wall of heating jacket, usually 0.5 ~ 1.5 mm.After the material liquid is
preheated, it is feed from the upper part of the evaporator along the tangent direction.
Under the action of gravity and the rotating scraper, it is distributed on the inner wall
uniformly and form the underspin film, the raw material is continuously evaporated and
concentrated in the falling process. The finished liquid is discharged from the bottom and
the secondary steam comes out from the top.In some occasions, the evaporator dries the
solution and produces a solid product directly at the bottom.
Features of scraper evaporator:
1.The scraper evaporator has high efficiency and great capacity, and the evaporation
capacity of water and organic solvents is 100-300kg /hꞏm2.
2.The scraper evaporator is treated by the material in the evaporation surface of the
residence time is short, about ±10 seconds, no coking, no scaling.
3.The scraper evaporator can realize low temperature evaporation under vacuum
condition.
4.The scraper evaporator is suitable for continuous production, the operation is elastic,
the structure is simple, easy to maintain, can carry out automatic control.
5.The scraper evaporator changes the inclination Angle of the groove on the outside of
the scraper and can adjust the time of material staying in the evaporator to meet the
needs of material evaporation with different viscosity.
6.The parts and equipment of the scraper evaporator that contact the material liquid are
all made of stainless steel, so as to keep the material liquid from being polluted.
7.The scraper evaporator is equipped with quick-opening cover plate on the top to
facilitate the cleaning of heating tube.On the top of both sides of the lamp hole, vision
mirror, easy to operate in the observation.
Application range of scraper evaporator:
Scraper evaporator is widely used in petroleum, chemical, pharmaceutical and other
industries, especially for high viscosity (such as vegetable extracts, honey, etc.) and easy
crystallization, scaling, heat sensitive materials.
2. Specification:
Effective
heating
area m2
Main technical parameters
Equipment
total
height mm(A)
Heat
cylinder
height
mm(B)
Separator
height
mm(C)
Bottom
seal
head
height
mm(E)
Heat cylinder
diametermm(Dn)
Jacket
diametermm(Do)
Motor
powerkw/h
0.5 2850 880 500 270 273 377 1.1
1 3500 1200 650 235 325 426 1.5
1.5 3750 1500 650 250 377 500 1.5
2 4350 1850 680 315 400 500 2.2
3 4650 2130 750 330 500 600 4
4 5500 3000 750 330 500 600 4
6 6700 3660 800 350 600 700 7.5
8 6700 3600 800 350 800 900 7.5/11
10 7200 4000 850 420 900 1000 11
…… …… …… …… …… …… …… ……
40 14500 8810 1400 1950 1800 1950 37/45
