Anhydrous dextrose drying device and drying process

Abstract

The invention belongs to the technical field of biomedicine, in particular relates to an anhydrous dextrose drying device and a drying process. The technical scheme is that the anhydrous dextrose drying device comprises a fluidized bed and a back mixing bed. The fluidized bed comprises a first-section fluidized bed and a second-section fluidized bed. The lower portion of the back mixing bed is connected with an air inlet pipe I through an air feeder I, a heater I is arranged on the air inlet pipe I, an air inlet pipe II and an air inlet pipe III are respectively connected with the first-section fluidized bed, an air inlet pipe IV and an air inlet pipe V are respectively connected with the second-section fluidized bed, an air feeder II is respectively connected with the air inlet pipe II, the air inlet pipe III, the air inlet pipe IV and the air inlet pipe V through a heat exchanger II, so that the phenomena that finished products are apt to change colors and blocked caused by high temperature of materials caused by continuous drying can be avoided.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and in particular relates to anhydrous glucose drying equipment and a drying process. Background technique [0002] Glucose is an indispensable nutrient for the metabolism of organisms. The heat released by its oxidation reaction is an important source of energy for human life activities. It can be used directly in the food and pharmaceutical industries. In the industry, a large amount of glucose is used as a raw material to synthesize vitamins. c. Its main preparation products are large infusion solution and hyperosmotic medium needle. Due to the special administration route of infusion solution and medium needle, the quality of raw materials is particularly important. Especially heat source reaction, impurity content, foreign matter, etc., if not guaranteed, may cause great harm to patients. Dextrose anhydrous is a replacement product for the production of infusions or middle needles. Cou...

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Problems solved by technology

At present, the drying of anhydrous glucose production enterprises uses fluidized bed as the main drying equipment. The fluidized bed has many advantages such as small maintenance workload, low failure rate, easy maintenance, and reliable operation. However, the operation of back-mixed bed equipment is not easy to control , The boiling effect is not good, the output per unit area is low, compared with the same period, the fluidized bed drying efficiency is low, which is not conducive to large-scale production, and the unit consumption of the product is high

[0005] The fan is one of the most important auxiliary equipment in the drying process of anhydrous glucose production, and the induced draft fan and the blower fan initially applied to this type of drying system all adopt the motor frequency constant speed operation mode, and then adjust the air volume through the inlet damper baffle To achieve the purpose of automatically controlling the pressure in the fluidized bed, its disadvantage is that it cannot effectively control the motor, regardless of whether the system load changes, the motor is in the power frequency operation mode

This not only causes a lot of waste of electric energy, but also reduces the life of the motor. On the other hand, most manufacturers still use the traditional control method, that is, through relay control. This control method has the disadvantages of large starting current, poor operation safety and reliability, and energy waste. question

[0006] During the drying process, while ensuring the cleanliness of the drying air supply, a small amount of water is removed more efficiently. How to save energy while ensuring the drying effect? ​​During the production quality tracking process, it was also found that the finished product of anhydrous glucose was stored After that, the temperature of the material will rise, which is not conducive to storage, and it is also a problem that plagues current manufacturers.

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