First, optimizing the particle size distribution of the material entering the machine is the key. The proportion of materials with a particle size less than 0.03D (D is the roller diameter of the roller press, in mm) should be strictly controlled to ensure that it accounts for more than 95% of the total. At the same time, the particle size entering the machine is generally controlled within the range of 25mm~30mm and has good uniformity to obtain the best extrusion effect. In addition, regularly use a set of screens to analyze the particle size of the material entering the machine, timely discover and adjust the material mix, and avoid too much fine powder material entering the roller press.
Secondly, pay attention to the adjustment of the side baffle and roller gap of the roller press. Ensure that the working gap between the side baffle of the roller press and the two ends of the roller is controlled within a reasonable range, such as 2mm~3mm, to reduce edge leakage and improve the extrusion effect. At the same time, regularly check the changes in the roller gap to ensure that it is within a reasonable range to ensure the density and crushing effect of the material extrusion.
Furthermore, appropriately increasing the working pressure of the roller press is also an effective method. Increase the fine powder content in the material after extrusion, thereby improving the extrusion effect. However, it should be noted that when increasing the pressure, the current of the roller press motor should be kept stable to avoid overload operation.
In addition, optimizing the design of the feed pipe is also an important part of improving the extrusion effect. Appropriately adjust the vertical feed pipe height between the weighing bin and the roller press, generally not less than 3 meters. At the same time, for the problem of the feed pipe being too large, its specifications can be appropriately reduced to increase the material pressure in the pipe and improve the extrusion effect.
In terms of equipment maintenance and care, the roller press equipment should be regularly maintained, including lubricating oil replacement, parts inspection and tightening, etc., to ensure the normal operation of the equipment. When the roller surface is worn, it should be welded online or replaced with wear-resistant roller surface materials in time to maintain the bite force and extrusion effect of the roller press.
At the same time, the introduction of an intelligent control system is also an effective means to improve the extrusion effect of the roller press. Realize remote monitoring and control of the roller press equipment to improve the stability and efficiency of operation.
Finally, it is also crucial to improve the skill level of operators. By training operators, they can operate the roller press equipment proficiently and master the optimized operation process, thereby ensuring the efficient operation of the equipment.
