How to deal with the problem of roller failure of dry granulator

After long-term use, there will always be some small failures in the dry pelletizer, some of which are roll failures When we encounter such problems, how to solve them? Now Suzhou Jituo Machinery Co., Ltd carefully analyzes the handling methods of roll problems: 1 Roll is easy to break The roll is made of stainless steel iron 2gr13, the surface is treated by gas nitriding, the surface hardness hv10 is more than 1000 ° and the nitriding hardening layer depth is more than 0.15mm, which makes the roll surface have strong wear resistance, fatigue strength and corrosion resistance The main dimension parameters of the surface structure of the dry granulator roll are the number of teeth in the circumference, the width of the tooth surface groove and the depth of the tooth surface Different roller surface structure has different pressing effect on the applicability of materials According to the different characteristics of materials, it can be divided into three types: Western medicine type, traditional Chinese medicine type and special material type 2 The problem of roller dislocation is actually caused by the situation of high pressure and low manufacturing accuracy 3 The cooling water leaked from the drying granulator There is cooling water in the roll, and there are dynamic sealing devices on the rotating roll and the static cooling water pipe But after a long time of use, there will be leakage problems under high pressure At present, some manufacturers have improved the roll structure to make the cooling water flow directly to the roller surface, which can effectively reduce the roll surface temperature and greatly reduce the possibility of leakage, which should be said to be a progress.