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

The principle of spiral 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 spiral cylinder through the rotation of the spiral shaft. The spiral dehydrator usually consists of a feeding device, a spiral shaft, a spiral cylinder, a discharge port, etc. After the pulp enters the spiral cylinder, the rotation of the spiral shaft gradually pushes the pulp toward the discharge port. At the same time, the water in the pulp is squeezed out through the inner wall of the spiral cylinder, thereby achieving the dehydration effect.

Advantages of spiral dehydrator:

High efficiency and energy saving: The spiral dehydrator can continue dehydration operations, which not only improves production efficiency, but also effectively saves energy costs. Its principle allows the water in the pulp to be quickly eliminated during the dehydration process, speeding up the dehydration speed.

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

Easy operation: The operation of the spiral dehydrator is relatively simple. You only need to control the feeding speed, the rotation speed of the spiral shaft and other parameters to achieve stable dehydration effects and reduce the difficulty of operation.

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

Application of spiral dehydrator in pulp dehydration:

Screw dehydrators are widely used in pulp dehydration. First of all, it can be used for pretreatment before pulp dehydration to remove excess water from the pulp and increase the concentration of the pulp, which is beneficial to the subsequent papermaking process. Secondly, the spiral dehydrator can also perform dehydration in various aspects of the papermaking process, such as dehydration before the forming of cardboard, paper, etc., to ensure the quality of the finished product. In addition, the spiral dehydrator can also be used for the recycling of waste paper to remove moisture from the waste paper pulp, providing an important link for waste paper regeneration.

in conclusion:

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

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