Freeze dryer is widely used in the field of biotechnology products
Shanghai Haozhuang Instrument Co., Ltd. has developed the LNB brand freeze dryer, which is energy-saving, environmentally friendly and domestically leading. Freeze-drying (hereinafter referred to as freeze-drying) is a method of first freezing water-containing substances into a solid state, and then sublimating the moisture from the solid state into a gaseous state to remove the moisture and preserve the substances. In the process of compressed air drying, freeze-drying is to reduce the temperature of compressed air, so that the moisture in the compressed air is precipitated. The working principle of the freeze dryer (cold dryer) is the same as that of the refrigerator. After the compressed air passes through the frozen compressed air pipe, the temperature of the compressed air drops to the required temperature to meet the requirements of drying.
Air freeze-drying technology has a wide range of applications in the fields of bioengineering, pharmaceutical industry, food industry, material science and deep processing of agricultural and sideline products.
Drug freeze-drying includes western medicine and traditional Chinese medicine. Western medicine freeze-drying has been developed in China, and many larger pharmaceutical factories have freeze-drying equipment. In terms of injections, freeze-drying process is used more often, which improves the quality and shelf life of medicines, bringing benefits to both doctors and patients. There are not many varieties of freeze-dried medicines, the product price is high, and the drying process is not advanced. In terms of traditional Chinese medicine, it is limited to the freeze-drying of a small amount of Chinese herbal medicines such as ginseng, velvet antler, yam, and cordyceps sinensis. A large number of Chinese patent medicines have not yet adopted the freeze-drying process, which is far from abroad. Japan launched the "Chinese medicine western system" a few years ago, which changed the method of brewing traditional Chinese medicine, solved the tradition that traditional Chinese medicine cannot be made into injections or tablets, and solved the problem that traditional Chinese medicine cannot cure acute diseases. Therefore, the freeze-drying process of traditional Chinese medicine in China And product research has great potential to be tapped. In the field of biotechnology products, freeze-drying technology is mainly used in the production of serum, plasma, vaccines, enzymes, antibiotics, hormones and other drugs; biochemical inspection drugs, immunology and bacteriology inspection drugs; blood, bacteria, arteries, bones , Long-term preservation of skin, cornea, nerve tissue and various organs. The status of the equipment and the development of the application of freeze-drying technology and equipment are inseparable. So far, the form of freeze-drying equipment is mainly divided into two types: intermittent and continuous. The scale of the equipment ranges from less than one square meter to several There are ten square meters. Intermittent freeze-drying equipment Intermittent freeze-drying equipment is suitable for multi-variety small batch production, especially in the food field is suitable for seasonal food production. With single-machine operation, if one device fails, it will not affect the normal operation of other devices. Intermittent freeze-drying equipment is convenient to control the requirements of heating temperature and vacuum degree at different stages when materials are dried. Equipment manufacturing and maintenance are easy to carry out. However, since loading, unloading, starting and other operations take up more time, the equipment utilization rate is low and the production efficiency is not high. Continuous freeze-drying equipment began to explore and use continuous vacuum freeze-drying equipment at home and abroad. The characteristics of continuous equipment are suitable for the production of products with a single variety, large output and sufficient raw materials, especially for the production of pulp and granular products. Continuous equipment is easy to realize automatic control, which simplifies manual operation and management, and its main disadvantage is high cost. With the end of GMP certification, the domestically produced excellent freeze-drying equipment for medical use has fully entered the modernization stage, with complete functions, reliable work and stable performance. It can achieve online cleaning or steam sterilization and sterilization. All technical indicators can meet the requirements of biological products and The need for lyophilized production of medicines. In contrast, foreign freeze-drying equipment has more varieties and specifications than domestic ones, complete equipment, energy-saving structure is more refined, and continuous freeze-drying equipment has a large production volume. In order to ensure the quality and energy saving of freeze-dried products, the combined freeze-drying equipment combined with other dry equipment, such as spray freeze-drying equipment, is often used. In the future, how to improve the freeze-drying efficiency, shorten the drying time, and save energy on the premise of ensuring product quality will be the goal of the freeze-drying industry workers.
Shanghai Haozhuang has a recognized team of experts in the industry and first-class scientific and technological talents. With its profound understanding and mastery of scientific instrument technology, it brings customers to visit!
Chainsaw: Gasoline chainsaw. This is the smallest kind of chainsaw. It is powered by a small two-stroke gasoline engine, similar to the Brush Cutter, Outboard Motor, driven by a sprocket, and runs on the guide board through a dedicated cutting saw chain to achieve the purpose of cutting and pruning wood, branches, ice and other themes. Mainly used for landscaping pruning, replacing the special guide board can be used as a large wood carving, ice carving large outline modification
Chainsaw products have many advantages, such as large power, small vibration, high cutting efficiency and low cutting cost. It has become the leading hand-held logging machine in the forest area.
The chainsaw shock absorption system uses springs and high strength rubber shock absorption. Sprocket form for positive teeth, make the assembly chain more simple and convenient!
Excellent and reliable ignition device, oil supply system using adjustable oil pump.
Before use, you must read the operation manual carefully to understand the characteristics, technical performance and precautions of the chainsaw.
Before use, the fuel tank, the fuel tank of the machine to add enough oil; Adjust the tightness of the saw chain, neither too loose nor too tight.
Before operation, the operator should wear work clothes, helmet, protective gloves, dust-proof glasses or facial protective cover.
After the engine starts, the operator holds the rear saw handle with his right hand and the front saw handle with his left hand. The Angle between the machine and the ground should not exceed 60 degrees, but the Angle should not be too small, otherwise it is not easy to operate.
When cutting, cut off the lower branches first, and then saw the upper branches. Heavy or large branches should be cut in sections.
25cc petrol chainsaw,chainsaw parts,cordless chain saw,pole chain saw,gasoline chain saw
Shaoxing Haotuo Machinery CO., LTD. , https://www.haotuochinatools.com