Canada DWT type through-flow belt dryer

DWT series belt dryer is the second generation belt drying equipment developed and produced by our company. The main structural feature is that the heat exchanger is placed at the upper and lower positions of the mesh belt. The hot air circulation mode is longitudinal multi-unit series circulation, which has the advantages of uniform heating and high heat utilization rate. It can be used for the drying of sheet, strip, granular and partial paste materials with good air permeability.

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CanadaHot air convection dryer series

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Product Description

Product overview

Equipment Overview

At present, small pieces of materials and fibrous materials are dried using more equipment box dryer, tunnel dryer and mesh belt dryer three categories. The first two are intermittent production, with high labor intensity, low degree of automation, and many uncontrollable factors; the mesh belt dryer realizes the continuity and automation of material entry and exit, and has high production efficiency, which meets the development needs of modern large-scale production. It is widely used.

The belt dryer is widely used in industry, and the drying process is completed in a fully enclosed environment to avoid dust leakage. Suitable for materials that are not allowed to break. The dried material is placed on the conveyor belt in a static state for drying, and the material will not be damaged. The finished product is of good quality. The dried materials have the same drying time, which can ensure the consistent color and uniform moisture content of the materials. DWT series through-flow belt dryer is a new generation of belt drying equipment developed and produced by Yongbang Drying. The main structural feature is that the heat exchanger is placed at the upper and lower positions of the mesh belt. The hot air circulation mode is longitudinal multi-unit series circulation, which has the advantages of uniform heating and high heat utilization rate. It can be used for the drying of sheet, strip, granular and partial paste materials with good air permeability. For dehydrated vegetables, Chinese herbal medicine and other materials with high moisture content and no fine powder particles, it has the advantages of fast drying speed, high evaporation strength and good product quality.

Working principle

The through-flow belt dryer is composed of several independent units. Each unit consists of a box, a conveyor belt and transmission system, a circulating fan, a heating device, a separate or common fresh air intake system and an exhaust system. The number of units can be determined as required, and the operating parameters such as air volume, temperature, humidity and exhaust gas circulation of the drying medium can be independently controlled to ensure the reliability of the dryer and the optimization of operating conditions.

The material in the hopper is evenly spread on the stainless steel wire mesh by the feeder, and the mesh belt is driven by the transmission motor to move at a constant speed in the drying oven. The drying section consists of several units. Hot air circulates longitudinally in two (or several) units. Fresh air is sucked into the dryer cavity by the fan and heated by the heat exchanger. The hot air passes through the material layer to exchange heat with the material, enters the lower cavity, and then flows to the next unit. The cooled hot air is reheated by the heat exchanger, and then passes through the mesh belt to exchange heat with the material again. The number of each dryer unit can be determined according to the characteristics of the material and the process requirements.

Equipment Features

The operation of the belt dryer is flexible. After the wet materials enter the belt dryer, the drying process is carried out in a completely sealed box. The working conditions are better, and the leakage of dust is avoided.

When the dried material in the belt dryer moves with the conveyor belt, the relative position between the material particles is relatively fixed (can be considered as a fixed bed), and the drying time is basically the same. For some drying processes where material color changes or moisture content requirements are uniform, the belt dryer is very suitable. In addition, the vibration and impact of the material on the belt dryer are very slight, and the material particles are not easy to break, so it is also suitable for drying some materials (such as food) that are not allowed to break.

The belt dryer can not only dry the material, but also sometimes bake, burn or mature the material. (4) The structure of the dryer is not complicated, the installation is convenient, and it can be operated for a long time. In case of failure, it can enter the internal maintenance of the box body, and the maintenance is convenient. (5) Disadvantages: large floor area and large noise during operation. Through the belt dryer scope of application: widely used in food, chemical fiber, leather, forestry, pharmaceutical and light industry, in the inorganic salt and fine chemical industry is also often used.

CanadaQG type air flow dryer

Canadanone

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