Multi functional scraper type thin film evaporator

NegotiableUpdate on 05/24

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The multifunctional scraper type thin film evaporator vacuum scraper concentration equipment is equipped with a heating steam jacket on the outside of the shell and a rotatable scraper inside, which is driven by the rotating shaft at the center of the cylinder. After the raw material liquid is added in the tangential direction from the upper part of the evaporator, it forms a rotating film along the inner wall of the shell under the drive of gravity and rotating scraper. The completed liquid is discharged from the bottom of the evaporator, while the secondary steam is discharged from the upper part after passing through the demister.

Product Details

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Multi functional scraper type thin film evaporatorWorking Principle:The material continuously enters the horizontal evaporator from the large-diameter end, is accelerated and distributed by the scraper film, and immediately forms a thin flow film on the heating surface. The conical thin film evaporator relies on a centrifugal force applied to the material by the rotor, which has two effective forces, one perpendicular to the heating surface and the other towards the large diameter end body (note: the same result also occurs in the vertical conical thin film evaporator). The acceleration of the material is generated by these forces, and the incoming material ensures that the heating surface is sufficiently moist, regardless of the evaporation ratio or feed speed. Therefore, local material overheating and thermal degradation are reduced or eliminated.In some cases, this evaporator can evaporate the solution and directly obtain solid products at the bottom.

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Multi functional scraper type thin film evaporatorPerformance and Features:The equipment adopts a centrifugal sliding groove rotor, which can form a thin film even at low flow rates. The sediment in the treatment liquid adhering to the inner wall surface of the evaporation section of the cylinder can be quickly removed by the movable scraper, and the fixed gap scraper evaporatorCompared to others, the evaporation rate can be increased by 40-69%, and it has the following performance and characteristics:

1. The heat transfer coefficient value is high, the evaporation capacity is large, the evaporation intensity can reach 200kg/m2 · hr, and the thermal efficiency is high.

2. The heating time of the material is short, between about 5 seconds and 10 seconds, and it works under vacuum conditions, which is more advantageous for thermosensitive materials, keeping various components from decomposing and ensuring product quality.

3. It can adapt to a wide range of viscosity changes and handle both high and low viscosity materials, with material viscosity up to 100000 centipoise (CP).

4. Changing the rotation direction of the scraper groove can adjust the maintenance time of the material in the evaporator.

5. The inner wall of the evaporation section cylinder is precision bored and polished, making the surface less prone to coking and scaling.

6. Easy to operate, easy to adjust product indicators, and capable of continuous production under closed conditions with self-control.

7. The equipment has a small footprint, simple structure, easy maintenance, and easy cleaning.

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