heating equipment
The fluidized bed dryer is second only to the spray dryer. It is divided into fluidized bed dryers with agitators installed in the feeding area and fluidized bed dryers with internal heat exchange. When using a fluidized bed to dry powder particles that are prone to agglomeration or clumping, fluidization difficulties may occur in the feeding section with high moisture content. In this case, setting up an agitator in the feeding section can eliminate clumping problems and achieve normal fluidization. The latter is a combination of conduction heat transfer and convection heat transfer. When the amount of hot air used for normal fluidized state cannot meet the heating equipment heat required for drying, an internal heat exchanger is set up to supply some or most of the heat. This operation method can significantly save energy. There are various forms of internal heat exchangers. Fluidized beds are also commonly used in combination drying of second and third stage dryers.
oven
According to an authoritative investigation report by a famous Japanese brewer, the four stores in Dalinggang had a total customer flow of 5 million after four years of operation, of which 3 million were "fan level" diners, almost one in every four to five Shanghainese. Yes, we have no reason to doubt the survey data of Japanese people for their own commercial interests. On the other hand, the lively eating habits of the customers in the restaurant seem to be due to their own psychological problems
Therefore, for domestic users, choosing domestic equipment is more convenient than choosing imported equipment. In terms of the international market, China's accession to the WTO is more conducive to expanding the export of drying equipment. At present, the main export products of dry heating equipment and drying equipment in China are vacuum drying equipment, vibration drying equipment, and drying equipment for small and medium-sized grain, food, and agricultural and forestry specialty products. The annual export volume exceeds 100 units, and the main export areas are Southeast Asia and other developing countries, and the door to the European and American markets has been opened. At present, the export products of drying equipment in China account for less than 5% of the total domestic drying equipment, and it is expected that the proportion of exported products in the total domestic drying equipment will reach more than 10% during the 15th Five Year Plan period.
In international competition, the main competitors of drying equipment production enterprises in China are Denmark, Switzerland, the United Kingdom, Germany, the United States, and Japan. Compared with competitors, the advantage of drying equipment in China is its low price. The main shortcomings lie in the degree of automation control, appearance quality, completeness, and functional combination of the products, which need to be further improved.
Therefore, domestic drying equipment manufacturers should fully utilize the opportunity of China's accession to the WTO, strengthen technical exchanges with foreign countries, draw on the strengths of advanced drying equipment from foreign countries, accelerate the improvement of the automation control, appearance quality, completeness, and functional combination of China's drying equipment self heating equipment, narrow the gap with foreign products, improve the trust of China's products among users, and enable China's drying equipment to not only dominate the domestic market, but also in foreign markets.
