For the buyers of the drying industry, how to evaluate the drying equipment is a comprehensive issue. How should we start? It is generally believed that evaluation can be conducted mainly from two aspects: its technical and economical aspects. First, the service life of a set of drying equipment is often a few years or more. The price of the equipment is only a fixed cost, and the main factor influencing the economic efficiency of the equipment in the life cycle is variable cost. In the operating cycle of the drying equipment, its profit is the revenue during the use period minus the fixed and variable expenses of the equipment. Fixed expenses refer to equipment depreciation and loan interest. Variable expenses refer to raw material costs, operating expenses, and maintenance costs. Since depreciation and interest are constant, the real impact on equipment revenue is variable expenses, and there is a big gap between the cost of different drying equipment, so raw material costs, operating costs and maintenance costs of equipment are the basis for evaluating drying equipment. Secondly, it is necessary to combine the types of materials that the equipment dries and the batches to check the drying costs of the materials, taking into account the impact of the energy saving methods, waste heat recovery, and environmental protection on the drying costs. Therefore, the comprehensive cost of drying equipment is also the basis for evaluating drying equipment. The technical evaluation of drying equipment is mainly based on the processing quality and energy utilization of the equipment. First, the energy efficiency of drying equipment is an important indicator to measure the advantages and disadvantages of a drying process or drying equipment in energy utilization. The so-called energy efficiency of a drying device refers to the ratio of the energy required to dehydrate the device and the energy provided to the device. It is generally believed that the energy efficiency of the drying equipment depends on the initial and final temperature of the drying medium, the ambient temperature and moisture content, the amount of heat supplied and lost, and the circulation of the exhaust gas. The heat supplied to the drying equipment mainly includes three parts: the amount of heat required for evaporation of water, the amount of heat required for heating the material, and heat loss. When evaluating drying equipment, the energy efficiency of drying equipment is an important basis for evaluating drying equipment. Second, there are many application industries for drying equipment, and each industry has its own particularity. There are specific requirements for the material, structure and processing quality of drying equipment. Therefore, manufacturers are required to provide high-quality drying equipment to meet the requirements of various industries for drying equipment. Processing quality is an important basis for evaluating drying equipment. Therefore, the evaluation of the technical and economical standards of drying equipment is basically in the above mentioned. Of course, more standards need to be explored in practice. Henan Zonghai Plastic Industry Co., Ltd. , https://www.hnzonghai.com
Evaluating the economics of drying equipment is mainly based on the economic benefits and overall costs of the equipment used.