Refrigerated truck water ice and salt ice refrigeration principle At atmospheric pressure, the melting point of ice is 0°C. When the ice melts, the heat absorption is 334.8 kJ/kg. Adding salt to the water ice can reduce its melting point. Within a certain range, the more salt in water ice, the lower the melting point. Experiments have shown that when the mass of salt added is 29% of the mass of water ice, the melting point of the mixture can reach a minimum value of -21.2°C. If you add more salt, the melting point no longer declines. The salt ice of different compositions is usually selected based on the proper temperature of the refrigerated cargo. For example, using salt ice with a salt content of 22%, the temperature in the compartment can be maintained at -18~-13°C. The water ice refrigeration device has a low investment and a low operating cost, but ordinary water (salt) ice has a small amount of heat absorption per unit mass, and the cooling in the vehicle compartment is limited. In addition, melting of salt ice will pollute the environment and food, corrode the car and the value of goods damp. Therefore, water (salt) ice refrigeration is mainly used for refrigerated transportation of fish and other aquatic products. Xigong Chusheng (Hubei) Special Purpose Vehicle Manufacturing Co., Ltd. specializes in the production of sprinklers, tank trucks, garbage trucks, wreckers, mixer trucks, dump trucks, aerial vehicles, and other special vehicles. Learn More Product Information Welcome Corporate website: Or call the sales hotline, 15672994333.
Classification of tablet press: Models can be divided into single punch tablet press, rotary tablet press, sub-high speed rotary tablet press, automatic high speed tablet press and rotary core tablet press.
The sheet shape pressed by the tablet press is initially flat circular, and later developed into shallow circular arc and deep circular arc on both sides, which is for the need of coating. With the development of special-shaped tablet press, oval, triangle, oblong, square, diamond, circular ring tablets followed. In addition, with the continuous development of preparations, due to the requirements of compound preparations and timed release preparations, special tablets such as double layer, triple layer and core coating are made, which need to be completed on special tablet press.
Rotary tablet press is a machine which is made of several pairs of die distributed on the turntable to make a circular lifting movement according to a certain track and press the granular material into tablet through the press wheel. And the stamping rod with the rotary table rotating speed ≥60m/min line press is called high-speed rotary tablet press, this high-speed rotary tablet press has a forced feeding mechanism, the machine is controlled by PLC, has the automatic adjustment of pressure, control the weight of the piece, eliminate the waste piece, print data, display fault shutdown and other functions, in addition to the control of the weight difference within a certain range, Quality problems such as missing Angle and loose lobe can be automatically identified and eliminated.
With the development of market demand, the scope of application of tablet press is more and more wide, no longer simply limited to the suppression of Chinese and Western medicine tablets, more widely suppressed health food, veterinary medicine tablets, chemical tablets: such as mothballs, washing blocks, smurf blocks, art powder, pesticide tablets, food tablets: chicken essence block, isatis root block, divine Qu tea block, compressed biscuits.
Rotary Tablet Press,Tablet Press,Tablet Machine,Tablet Maker,Pill Machine JIANGYIN CITY XUAN TENG MACHINERY EQUIPMENT CO.,LTD , https://www.xuantengmachine.com