First, the material overview bean sand powder can be divided into red bean sand, green bean sand, pea sand and so on. It is a commonly used snack filling in our lives and is the most important raw material for making moon cakes. Therefore, the bean paste is extremely strict in the production process and cannot have any pollution, and must reach “QSâ€.
Second, the material characteristics and production processes bean paste has a high moisture content, easy to mold. Taking red bean paste as an example, the water content of the filter cake is between 60-65%, and the finished product moisture is 5% after drying.
Drying Overview Dry bean paste is the last link in the entire process, and it is the most important guarantee for verifying the quality of bean flour. Therefore, it is necessary to select the right drying equipment when drying the bean paste. This will not only ensure the completion of the dry production operation but also improve the product quality.
At present, the domestic dried bean powder still stays in the old drying methods. For example, some small workshops generally use the mixing axe to dry while mixing, so that the product quality cannot be achieved and the production environment is rather poor. Enterprises with good conditions use paddle drying, air drying, belt drying, and ribbon drying. However, none of the above can meet industrial production. Because paddle drying, belt drying, and ribbon drying are relatively long in production, it is easy to make some of the materials degeneration or adhere to the walls during drying. If they are not discovered in time, they will be mixed with dried materials. Inside the finished product. The product is unqualified and unsanitary. Therefore, according to the actual situation of bean paste manufacturers, Liqun Dry designed a flash dryer for the production of bean paste for Fujian Biotech, and made corresponding changes in the performance of the flash dryer. In the process of commissioning production, one-time compliance, very short drying time, particularly good fluidity of the material, bright color, and good product moisture control. In addition, there is no sticking phenomenon in the drying tower, and there is no residual bean powder in the bottom of the tower. This eliminates the need for workers to clean up each production job, which reduces labor intensity.
4. Working Principle of Flash Dryer Bean sand is added to the flash dryer by the screw feeder. The hot air enters the tangent line of the dryer to generate a high-speed spiral air flow. The wet material is stirred in the high-speed air stream and stirred in the machine. Under the action, the particles are also crushed and classified while being dried. The smaller the particles, the faster the gas-solid heat transfer. Small particles in the role of rotating airflow, from the dryer section of the lower fluidized section to the upper drying section of qualified products from the top classifier and hot air into the cyclone separator, separated and collected into a finished product packaging; and larger particles and humidity The high particles, under the influence of gravity and centrifugal force, fall back to the middle and lower sections of the dryer and are crushed and dried again.
V. Drying process
VI. Application Prospects Through the production practice, the rotary flash dryer has greatly improved the drying efficiency of dried bean paste and other equipment, and has improved production capacity, energy saving, production cost reduction and environmental pollution reduction. Outstanding advantages. In the actual production, it has produced a good economic effect, which has effectively enhanced the competitiveness of the company. Therefore, in the drying process similar to bean paste powder, rotary flash dryer has a great promotion value.
Welcome to contact Changzhou Liqun Flash Drying Equipment Co., Ltd. We will provide you with free technical advice!
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