screw dehydrator

Pulp dehydration is one of the indispensable and important links in the papermaking process. Its purpose is to remove the excess water in the pulp so that it can be better processed and shaped in the subsequent production process. As a commonly used pulp dewatering equipment, the screw dehydrator has the characteristics of high efficiency and energy saving, and has been widely used in pulp dehydration. This article will discuss the principle, advantages and application of the screw dehydrator in pulp dehydration.

The principle of screw dehydrator:

The spiral dehydrator is a device that uses the principle of combining mechanical force and gravity for dehydration. Its basic principle is to continuously squeeze and dehydrate the pulp in the screw cylinder through the rotation of the screw shaft. The screw dehydrator is usually composed of a feeding device, a screw shaft, a screw cylinder, and a discharge port. After the pulp enters the spiral cylinder, the rotation of the screw shaft gradually pushes the pulp to the outlet, and at the same time, the moisture in the pulp is squeezed out through the inner wall of the spiral cylinder, thereby achieving the effect of dehydration.

Advantages of spiral dehydrator:

High efficiency and energy saving: The spiral dehydrator can continue dehydration operation, which not only improves production efficiency, but also effectively saves energy costs. Its principle enables the moisture to be quickly removed during the dehydration process of the pulp, and the dehydration speed is accelerated.

Strong adaptability: The screw dehydrator can adapt to different kinds of pulp, including waste paper pulp, wood pulp, etc. It has strong adaptability and versatility, making it perform well in different situations.

Easy to operate: The operation of the screw dehydrator is relatively simple. It only needs to control the parameters such as the feed speed and the rotation speed of the screw shaft to achieve a stable dehydration effect and reduce the difficulty of operation.

Small footprint: Compared with other dehydration equipment, the spiral dehydrator occupies a small space and is suitable for installation and use in a limited space.

Application of screw dehydrator in pulp dehydration:

Screw dehydrator has a wide range of applications in pulp dehydration. First of all, it can be used for pretreatment before pulp dehydration, remove excess water in pulp, increase pulp concentration, and benefit the subsequent papermaking process. Secondly, the spiral dehydrator can also dehydrate in various links in the papermaking process, such as dehydration of cardboard, paper, etc. before forming, so as to ensure the quality of the finished product. In addition, the screw dehydrator can also be used for the recycling of waste paper to remove the moisture in the waste paper pulp, which provides an important link for the regeneration of waste paper.

in conclusion:

As an important equipment in the field of pulp dewatering, the screw dehydrator plays an important role in pulp dewatering due to its high efficiency, energy saving and strong adaptability. With the continuous development of science and technology, the performance of the screw dehydrator will continue to improve, providing strong support for the optimization of the pulp dehydration process and the sustainable development of the pulp industry.

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