Low temperature pulverizing technology of ultra-fine low temperature pulverizer for traditional Chinese Medicine

Ultra low temperature pulverizer for traditional Chinese Medicine In the process of material comminution, the cold source of the system forms a closed-circuit circulation system to make full use of energy and save energy consumption: the temperature of the cold source for comminution can be reduced to - 196 ℃; according to the temperature of the embrittlement point of the material, the temperature can be adjusted and controlled in the comminution process, and the comminution temperature can be selected to reduce energy consumption: the comminution fineness can reach 10-700 meshes or even microns μ Liquid nitrogen is used as grinding medium to achieve the comprehensive effects of ultra-low temperature grinding, material explosion-proof and anti-oxidation The low temperature pulverizing process of the ultra-low temperature pulverizer of traditional Chinese medicine is to use liquid nitrogen to freeze, cool the waste rubber products to below the glass temperature, and then use the ultra-low temperature pulverizer of traditional Chinese medicine to pulverize There are two methods of low temperature comminution Direct freezing and low temperature grinding method The production process of this grinding method is: cut off the tire bead on the tire dissector, divide the tire surface into 2-3 small pieces, put them in the freezing (liquid nitrogen) device, and then use the ultra-low temperature pulverizer of traditional Chinese medicine to crush them to get the rubber powder The method of low temperature comminution, in which coarse crushing is carried out first and then fine crushing is carried out under the condition of freezing The production process of this grinding method is as follows: after cutting the waste tires according to the method, put them in the freezing device In the ultra-low temperature crusher of traditional Chinese medicine, the waste tires are crushed first, then frozen again, and then finely crushed, so as to obtain the rubber powder This production method needs two times of liquid nitrogen freezing, so the production cost is high However, when the steel wire radial tire is treated by this method, the steel wire is easy to separate from the rubber, and at the same time, the power consumption can be correspondingly reduced The low-temperature grinding process has the following advantages: (1) it is suitable for crushing substances that are not easy to be crushed at room temperature, such as rubber, thermoplastic, etc (2) the powder material with obvious particle size distribution can be obtained by the built-in classifier (3) the rubber powder with finer size and better fluidity can be obtained by pulverizing at room temperature, and the powder has good formability after pulverizing (4) it can avoid dust explosion, odor pollution and noise (5) the power required for crushing is very low, which can improve the output of the crusher (6) the comminuted heat sensitive substances will not be degraded by oxidation and heat (7) by using the difference of low temperature brittleness of various substances, complex substances can be selectively crushed, such as rubber, metal and fiber tire.