In recent years, the prevailing trend of energy conservation and environmental protection has affected all walks of life. For the pharmaceutical industry, energy conservation and environmental protection means improving pharmaceutical technology, improving the performance of pharmaceutical equipment, making further pharmaceutical finishing work, managing emission treatment of waste gas, waste water and waste body, and reaching relevant standards. Among them, the quality of pharmaceutical equipment has a certain impact on the pharmaceutical industry, especially in the aspect of energy saving. Therefore, building energy saving and environmental friendly high-performance pharmaceutical equipment is very important.
     Take the blade dryer as an example. It is a low speed stirring dryer with a stirring slurry inside the equipment, which makes wet material stir in the blade and is in full contact with the heat carrier and hot surface, so as to achieve the purpose of drying, the structure form is usually horizontal, double axis or four axis. There are many drying equipments on the market, and their characteristics are different. The difference between the blade dryer and the other dryer is that it is used in the fields of chemical, food, petrochemical, pharmaceutical, environmental protection and so on. It can be used in the fields of chemical, food, petrochemical, pharmaceutical, environmental protection and so on. It can be heated or cooled to the paste, granular, powdery and slurry materials and complete drying, cooling, heat adding, sterilization, reaction, low temperature combustion and so on. It can also dry heat sensitive materials and recover solvents in the drying process under special circumstances.
  It is understood that the extremely early blade dryer was developed by Germany, and then Japan introduced the technology and improved it. Among them, the Nara Machinery Manufacturing Institute of Japan Co., Ltd. has now developed a series of two structures and more than 10 specifications of the dual axis and four axes. Compared with the German and Japanese countries, the paddle dryer in China started late and the technology is still exploring, but it can basically meet the needs of domestic food and pharmaceutical industries.
 
  What are the characteristics of the impeller dryer in China? The personage of the industry has carried on a brief introduction to this:
  Low energy consumption and high thermal efficiency. As the blade dryer is used to heat the heat, the energy consumption is low, the material transmission system needs less power and less power consumption, so as to achieve the purpose of energy saving.
  Environmental protection, small pollution. The dust emission of the blade dryer meets the relevant requirements. Closed-circuit circulation can be used for the polluted materials or the work conditions requiring solvent recovery.
 
   It is easy to control and has strong applicability. The gradient of temperature, humidity and mixing degree of the material in the axial region is very small, and the process is stable. The residence time of the material can be accurately adjusted by adjusting the speed of the main engine.
 
  The flow of materials is single and there is no backmixing. The material is dried evenly, with stable quality and no need for mixing.
 
  Easy to operate and easy to clean. According to the insiders, the blade dryer is easy to install and occupies a small area. And the driving and parking operation is very simple. When the feed is stopped, the rake leaves of the material can quickly emptying the material in the dryer through the special large size inspection door and the view mirror, and can carry on the good cleaning and observation to the equipment.
 
  The cost of operation and maintenance is low. The operation time of employees is greatly shortened, the amount of wear is small, and maintenance costs are few.
 
  With the maturity of domestic drying technology, many technical researchers and pharmaceutical enterprises have explored the drying equipment, actively learn from foreign advanced technology and combine the national conditions of our pharmaceutical and food industries to improve and upgrade equipment. At present, a new kind of equipment has been born on the market, that is, the hollow blade machine.
 
  Unlike the traditional blade dryer, the hollow blade dryer is mainly composed of a W-shaped shell with a jacket, two hollow blade shafts and a transmission device. The shaft is lined with hollow blades, and the shaft ends are provided with rotary joints imported by thermal medium. The heat required for drying moisture is transported to the material by the inner wall and the hollow blade wall of the W groove with a jacket. During the drying process, the hollow shaft with hollow blades heates the material and stirs it to renew the heating surface. It is understood that the hollow paddle dryer has higher drying efficiency and more energy saving. It is often used in drying or cooling of materials such as carbon black, light calcium carbonate, titanium dioxide, barium carbonate, nitrile uric acid, manganese dioxide, polyethylene, polypropylene (recovery solvent) and so on.
 
 
  Our company's KJG hollow blade dryer is adaptable and widely used. It is a new horizontal intermittent vacuum drying equipment. After evaporation, the wet material is evaporated by the vacuum pump and pumped out by the vacuum pump. The bright spot is that the steam consumption is small, as the vacuum rake dryer uses steam into the jacket with more steam, and the latent heat is used to heat the material, and the amount of steam used for each kilogram of the finished product is small, which is generally 1.3-1.8 steam. The equipment is currently used in the organic semi-finished products and fuel drying operations in chemical industry.
 
  Technology is the first productive force. On the road of development, the oar dryer equipment manufacturing enterprises need to keep pace with the times. In the 2018 new year, we should strengthen the independent innovation ability, develop and produce automatic, intelligent, energy saving and environmental protection products to adapt to the development trend of the new era and meet the market demand better.