The fluidized bed -type air crusher. In the dry crusher, its structure is simple, which can achieve continuous feed and dismissal. The material can be continuously transported out in time, and its granularity distribution is steep. In addition, due to the crushing principle of this model, the nozzle is produced through a specially designed nozzle, which generates supersonic high -speed airflow, and the materials to be crushed. Under the acceleration of supersonic airflow, they collide with each other, squeezed and friction at the intersection of the nozzle. Broken. Because the material does not have a strong impact with the internal parts such as the wall, the equipment is durable, and more importantly, the high purity after the material is crushed. Another important feature is that the gas sprayed from the nozzle forms thermal insulation and expansion in the crushing room, and the material will not increase during the crushing process. Instead, the material is instantly crushed at low temperature. This crushing method, crushing the thermal material, does not need to add refrigerated media, can also ensure that its physical and chemical properties remain unchanged. However, fluidized bed -type air -flow crusher has a high energy consumption. Although the model has many advantages, it still seems to be too heavy for products with low value. Nevertheless, people crushed
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The machine still gives great enthusiasm and expectations. Some scholars believe that if the working efficiency of fluidized bed -type airflow ultra -micro crushing machines can be improved by 1 to 2 times, this will be a very meaningful thing. As the work efficiency of this model is improved, it will develop a wider application. prospect. Many people still make related efforts for this. We have accumulated certain practical experience in the development, development and use of fluidized bed -type air crusher for a long time. In order to improve the efficiency of the airflow crusher, we should first consider the two parts, that is, the crusher itself and its control conditions. The comprehensive brief description is as follows: (1) Strictly control the amount of feeding: the feed speed should be appropriate and uniform. In addition, it is necessary to consider what kind of feeding method is used. Some materials need to be spiral materials, and some materials need to use oscillation and feed. The characteristics of the material themselves should be used to determine the feeding method. The most important thing is to ensure the supply of material supply in the crushing room and meet the concentration of a certain concentration of crushing indoor materials. Practice has proved that whether the material concentration is low or too high material concentration will have a bad effect on the output of the finished product. The material concentration is low, the probability of the material to the material is small, and the material concentration is high, which will affect the speed of the air flow. Both are unfavorable efficiency to increase. The visual pressure, the material characteristics of the material, and the characteristics of the body should strictly control the feed speed of the material. (2) Increase the impact of airflow and particle impact. This should be agreed from two aspects. First of all, the design of the nozzle must be reasonable, and the layout of the nozzle is also very important. Only by meeting the above requirements can we achieve the purpose of improving production efficiency. The traditional method of fluidized bed -type airflow ultra -micro crushing machine, the setting of the nozzle is arranged in parallel around the crushing room.The probability of high particle impact. In addition, the disadvantages of this design also reflect the rough powder under the nozzle, and rarely have the opportunity to be shattered to form a blind spot. The air flow crusher breaks the traditional setting of the nozzle. In the same plane of the crushing room, a certain angle is formed with this plane, and several nozzles are set symmetrically. One vertical nozzle, with the central line of the other nozzle, points to the same focus. Under the common action of the airflow sprayed by all nozzles, the material is formed to form a conical gathering into the focus, and the material is instantly crushed. In addition, in front of the nozzle, a mixed tube is set to make the crushing room does not have blind spots, which increases the probability of the particle impact. Only this transformation can increase the effect by 150 to 200%. (3) Optimize the grading structure. Tie is a crucial link of the ultra -micro crushing system. The most significant feature of the fluidized bed air flow crusher, that is, can achieve continuous feeding and discharge, prevent the materials from crushing too much, and cause unnecessary energy consumption. According to the principle of turbine grading, properly increasing the diameter of the hierarchical wheels, increasing speed, and reducing air flow is the fundamental guarantee of ensuring that the granular is separated by small particle size. It is necessary to control the relationship between the above three according to the characteristics and specific requirements of different materials. (4) The original materials of entering the airflow crusher should be as small as possible. To achieve this purpose, pre -crushing treatment should be used before ultra -micro crushing. This is the most direct and effective method for saving energy and increasing unit output. (5) Ensure that the fluidized airflow crusher, the gas tightness requirements of the entire closed system, including pipelines, valves, and devices of equipment should not be leaked. In a word, we must use precious air power and energy sources to the nozzle, and strive to improve the gas flow and pressure. (6) Product collection and dust collectors should ensure smooth gas delivery and not resistance. The system devices of this part must not only ensure that they are collected to be qualified products, but also ensure the requirements of the environment. They are not polluted, but the equipment is too complicated, and things will bring too much burden on the overall work.
