Latest company news and operating guidance
During the use of the vertical cartoning machine, the machine cannot work normally due to the wear, deformation, corrosion or even improper operation of the parts. The reason is basically the change in the relative position and working relationship of the parts of the automatic cartoning machine , causing the technical state of each part to be unable to operate normally, making the working ability of the cartoning machine decrease or even lose. Common faults are generally difficult to start the engine, increased fuel consumption, decreased power or other abnormal phenomena, ... Read More
(1) The speed of the machine is limited by the speed of the lower instruction manual and the lowering plate, and the design should be more reasonable; (2) The stability of the machine is relatively poor after long-term high-speed operation, requiring stable operation and more use of servo systems; (3) The accuracy cannot meet the requirements after long-term operation, the synchronization is not good, and the reliability is required to be improved; (4) The adaptability to the product is low, its function is relatively single, the adaptability is relatively narrow, and there ... Read More
1. Pre-freezing speed Most freeze dryers cannot control the pre-freezing speed, so the pre-freezing rate can only be determined by the pre-freezing temperature and the packing time. If the pre-freezing rate is fast, the freeze-drying chamber should be lowered to a low temperature before the product is put into the box; if the pre-freezing rate is slow, the product should be cooled down after entering the box. 2. The minimum temperature for pre-freezing This temperature depends on the eutectic temperature of the product, and the minimum pre-freezing temperature should be low ... Read More
During the freeze-drying process, the pressure in the freeze-drying chamber used to be thought that the lower the better, but the current view does not think so, but should be controlled within a certain range. The low pressure is of course favorable for the sublimation of the ice in the product. However, when the pressure is too low, it is unfavorable for heat transfer, the product is not easy to obtain heat, and the sublimation rate is reduced instead. Experiments show that: when the pressure of the freeze-drying chamber is lower than 0.1 mbar, the convective heat transfe ... Read More
Food vacuum freeze-drying technology is a new type of food processing technology, which is considered to be an ideal dehydrated food processing method and can be applied to the drying treatment of many fresh fruits and vegetables that are difficult to preserve. In recent years, the emergence of freeze-dried apricots has also verified the feasibility of freeze-drying technology in the food processing industry. Apricot is rich in nutrients and contains more sugar, protein and minerals such as calcium and phosphorus. Apricot fruit has the functions of clearing heat and detoxif ... Read More
The freeze dryer dries at low temperature, which will not denature the protein, but can make the microorganisms lose their biological activity. This is especially suitable for dry preservation of biologically active products, biochemical products, genetically engineered products and blood products with poor thermal stability. The freeze dryer changes the tedious operation of the drying process in the past, prevents the pollution of materials, and realizes the automation of drying and sublimation, which is suitable for pilot or mass production. The freeze-dried articles are ... Read More
During tablet pressing production on tablet press machine , there may be some problem occurs during the production, now let’s see what are the most common problems and solution in tablet pressing production. 1. Incompact tablets 1) Problems: Sometimes, compressed tablets are not hard and have small holes. They can be scattered when pressed slightly. 2) Analysis and solutions a. The drug powder is not fine or not uniformly mixed due to high content of oily ingredients. Operators can sieve the powder though 100-mesh screen, mix it with viscose adhesive, increase tablet compre ... Read More
1. Working principle of fluid bed drier The powdery material is fluidized in the container (i.e., fluid bed) and preheated and mixed by heated purified wind. Adhesive is then atomized and fed into the container to agglomerate those material into granules. The heated wind can continuously evaporate water, solidify adhesive and dry the granules. This process repeats again and again. At last, the material is formed to ideal, uniform and porous granules. 2. Advantage of fluid bed drying machine 1) This fluid bed granulating and drying machine can granulate powder, better its fl ... Read More
In the past ten years, the freeze-drying industry has made great progress, and its application fields have gradually expanded. In the field of life science research, lyophilization technology can be used for the research of antibodies, proteins, tissues and microorganisms, so it has been widely used in the field of biopharmaceuticals. In the pharmaceutical industry, it is widely used in the preparation of vaccines and antibiotics. The freeze-drying method is basically carried out below 0 °C, that is, in the state of freezing the product. Only when the residual moisture cont ... Read More
The working principle of the freeze dryer is to freeze the dried item below the triple point temperature, and then directly sublime the solid water (ice) in the item into water vapor under vacuum conditions, take it out of the item and dry it. After pretreatment, the material enters the quick-freezing warehouse for freezing, then enters the drying warehouse for sublimation and dehydration, and is packaged in the post-processing workshop. The vacuum system establishes low pressure conditions for the sublimation drying chamber, the heating system provides the latent heat of s ... Read More