At present, the low level of automation of domestically-made drying equipment and the backwardness of control means are common problems. As far as the current level of automation is concerned, it is not difficult to solve the control problem in the drying equipment, but what is lacking most is the problem of the reasonable combination of the automatic control technology and the drying equipment. Each type of drying equipment has its specific scope of application, and each kind of material can find several kinds of drying equipment that can meet the basic requirements, but the most suitable one can only have one kind. If improperly selected, users must not only bear unnecessary one-time high procurement costs, but also pay a heavy price during the entire use period, such as low efficiency, high energy consumption, high operating costs, poor product quality, and even equipment devices. It can't run normally at all. The following are the general principles for the selection of drying equipment. It is difficult to say which one or several items are the most important ones. The ideal selection must be focused according to its own conditions, and sometimes a compromise is necessary. 1. Applicability ------- Drying equipment must first be able to be applied to specific materials and meet the basic requirements for material drying, including the ability to handle the material well (feeding, conveying, fluidization, dispersion, transfer Heat, discharge, etc., and can meet the basic requirements of the amount of processing, dehydration, product quality and so on. 2. High drying rate—Only considering the drying rate, the convection drying material is highly dispersed in the hot air, the critical moisture content is low, the drying speed is fast, and the same is the convection drying, and the drying method has different critical moisture content. The drying rate is also different. 3. Low energy consumption ------- Different drying methods have different energy consumption indicators. In general, the thermal efficiency of conduction drying can theoretically reach 100%, and convection drying can only be about 70%. 4. Save investment ----- Complete the same function of the drying device, sometimes its cost difference is very different, you should choose the lower one. 5. Low operating costs - equipment depreciation, energy consumption, labor costs, maintenance costs, spare parts costs ... and other operating costs should be as low as possible. 6. Priority should be given to selecting desiccators with simple structure, adequate supply of spare parts, high reliability, and long life. 7. Meet environmental requirements, working conditions, and high safety. 8. Before the selection, it is best to make a drying experiment for the materials, to have an in-depth understanding of the drying devices (advantages and disadvantages) that have been used for similar materials, and it is often helpful for proper selection. 9. Not relying entirely on past experience, focusing on absorbing new technologies and listening to the opinions of experts. At present, the low level of automation of domestically-made drying equipment and the backwardness of control means are common problems. As far as the current level of automation is concerned, it is not difficult to solve the control problem in the drying equipment, but what is lacking most is the problem of the reasonable combination of the automatic control technology and the drying equipment. Different materials require different dryers. Similarly, there are major differences in the requirements for control methods for different materials. The role of automatic control in the dryer is well-known, but its one-time investment is also the issue that people are most concerned about. Sometimes the investment in control equipment even exceeds the investment in the mechanical part of the dryer. It is also the subject that research should be carried out to determine a reasonable control plan for dryers and drying process requirements and to determine appropriate control measures for specific drying projects. In addition, it should also pay attention to the magnification of drying equipment . The enlargement involves disciplines such as fluid mechanics, mechanics, thermodynamics, heat transfer, materials science, dust removal, corrosion protection, electrical appliances, and control. It is very likely that some problems will arise during the amplification process. Therefore, the amplification of the drying device is by no means a simple geometrical enlargement. In this respect, it largely depends on the experience of industrialization, the mastery of the physical properties of materials and the understanding of drying equipment. The phenomena that may occur during the enlargement process should be predicted rationally and objectively, and corresponding solutions can be proposed. The so-called research amplification effect is to grasp the drying theory and drying technology while paying attention to accumulating practical experience and summing up lessons. Our unique mast-driven lift (MDL) transports goods between levels up to 5.5 m yet has easy ramp access and a closed height of only 65 mm. It uses high-quality well-engineered components. For example, direct-acting hydraulic telescopic lift cylinders provide safe, smooth, and self-leveling operation. Assembly on site is quick and easy, with no pit required because the lift is freestanding and self-supporting. 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