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The Main Types Of The Dryer

Jun 08, 2018

Working principle of ordinary conventional drying machine

As shown in the picture, the dryer in the draught of the fan, the outside fresh air directly through the inlet of the air inlet and heater heat exchange into dry hot air, and then heat exchange with the roller in the roller after the heat exchange was discharged, and the clothing in the drum, in the dry hot air function gradually evaporated and dried. Because the evaporation of water in clothing needs absorption and consumption of heat energy, the exhaust temperature of dryer increases gradually with the decrease of water content in clothing. The main problem is that the heater is exposed to heat dissipation and the heat dissipation of the shell is large. The fluctuation of steam pressure has great influence on the energy consumption. [1]

Internal rotation

Equipment structure

It consists of horizontal cylindrical cylinder, exhaust pipe, feeding device, discharging device, inner spiral device, cleaning device, dialing board, air diversion device, transmission device, dust removal equipment and electronic control equipment. The performance features 1. To solve the problem that the water vapor returns to the material after the system temperature is reduced in the same direction movement of the traditional drying machine. 2. During the drying process, the hot gas flow is moving from the tail to the material and fully utilized through the heat conduction, convection and radiant heat transfer; 3, through the inner spiral. Mixing, sweeping, copying, pushing material movement, completing the whole drying process; 4, countercurrent conduction dehumidification, to avoid reducing the repeat drying process.

Roller type

Drum dryer is widely used in food, feed, chemical, pharmaceutical, mining and other industries. The working process of the equipment is as follows: after the dehydrated wet material is added to the dryer, the material is evenly distributed in the dryer and fully contact with the hot air in the dryer. The heat transfer and mass transfer are accelerated. During the drying process, the material is discharged under the action of the tilting plate and the thermal temperament, and the other star discharge valve of the dryer. The machine is suitable for the drying of all kinds of residue materials with water less than 85%, such as beer distiller's grains, bean dregs, jetting corn skin, coal mud and fruit residue. It has good effect for opening feed resources, reducing the feeding cost and reducing environmental pollution for 10 years. The main export products of the drum dryer in China are the vibration drying equipment and the vacuum drying equipment. The export of small and medium grain, food and agricultural and forestry products is more than a few hundred. The main export areas are Southeast Asia and other developing countries, and they have opened the door of the European and American markets. Principle introduction the heat source of the drum dryer comes from the combustion device and adopts the parallel flow heating mode. Therefore, the material needed to dry is pushed from the feed box and feed into the cylinder, that is, pushed by the spiral plate. As the dryer is tilted, the material flows to the back end under the action of gravity and rotation. On the other hand, the material is repeatedly copied from the sheet, and then continuously raised to the upper end, so that the material can form a uniform curtain inside the tube, and the heat exchange is fully exchanged with the hot gas flow in the cylinder, because the moisture content is repeatedly raised and the moisture contained. It is gradually dried to achieve the purpose of drying. Operation method opens the machine door, dehydrates the dehydrated material evenly in the rotary drum, then closes and closes the door. According to the material type, choose the right time to adjust the timing device to the required time. Press the start button to start the blower. According to users' needs, one way rotation and two way rotation can be selected in the rotation direction of the rotary cylinder. As long as the computer board switches to one way or two way, the machine will perform one-way operation or two-way operation according to the requirements. (turning 25 seconds, stopping for 5 seconds, reversing 25) watch the overturn of the internal fabric from the observation window frequently. If an accident occurs, the power supply should be cut off in time to check the malfunction. When the machine runs to the specified time, the machine will automatically stop running. At this time, the operator must be asked to open the door to check the drying of the inner fabric. If the effect is not achieved, the operator will be able to extend the time properly. [1]

The main characteristic of the system is automatic control device, which can automatically complete the whole drying process by adjusting the time through the control panel. The rotary drum is made of high quality stainless steel, the cylinder is beautiful and smooth, and it is durable. The processing capacity is large, the fuel consumption is low, and the drying cost is low. Triangle belt drive is adopted, with stable operation, low noise, and safety. [1]


Building materials industry is one of the most important basic industries in China. Building materials include three categories of building materials and products, non-metallic minerals and products, inorganic non-metallic new materials, widely used in the fields of architecture, military industry, environmental protection technology industry and people's life. China is already the largest producer and consumer of building materials in the world. Main building materials [1]

The output of cement, flat glass, building sanitary ceramics, stone and wall materials has ranked first in the world for many years. At the same time, the quality of building materials continues to improve, the consumption of energy and raw materials is decreasing year by year, various new building materials are constantly emerging, and building materials products are constantly upgrading. As a result, the processing requirements of building materials are constantly improved, for example, the control requirements of raw materials, impurities, water content and so on are constantly improved. Only in this way can we produce products with guaranteed quality. The mine drier is a new product emerging according to the needs of product quality and process. The mining dryer takes into account the environmental protection and energy saving, so the research and development expenditure is based on reducing pollution, reducing wastage, saving land area and providing productivity, and the new generation of products has been studied through multi research and planning of professional technical experts. The size and size of the equipment can be adjusted according to the practical application of the building materials industry, so as to meet the processing needs of different materials.