Tube bank dryer bearing a field repair of wear and tear

Tube bank dryer bearing wear and tear of the 2020 - at the site 07 - About 13 abstract: this paper introduces a kind of tube bank dryer bearing abrasion problem of the technology at the site, and the reason analysis, proposed several common fix, ultimately determine the use of polymer composite materials with patent equipment on-site repair solution. Key words: tube bank dryer; Bearing wear; Site remediation technologies; F the blue technology, equipment introduced tube bank dryer is a kind of common drying equipment, its principle is the use of heat conduction and thermal radiation through the heat exchange tube wall outside of the water vapor heat to surface drying of material, so as to achieve the purpose of drying materials. Has simple operation, high automation, high efficiency and energy saving and other characteristics, widely used in chemical industry, food, light industry, starch, etc. Its structure is mainly composed of main drive system, supporting system, feeding system, steam system. Some biotech companies, equipment problem analysis two starch tube bank dryer bearing a workshop, interval sets installed wear condition, wear is the most big up to 1 cm, its form by the former in the order: back pressure plate, the big gear, interval set, the set set, interval sets. Think after analyzing the causes of bearing wear and interval set position for gear pressure plate and set loose casing pressure plate or inadequate pretightening set set and interval set and the axial relative motion and dynamic, cause the diameter of axle wear. Third, contrast of several common repair technology for such transmission parts wear problem, traditional repair process is often after removal to repair workshop equipment repair welding machining processing, down time is longer, and repair welding process is easy to cause thermal stress, lead to shaft bending deformation, causing irreversible damage. And traditional brush plating process for plating thickness generally have a requirement, can not meet the thickness of the centimeter level. Other than no matter use what kind of repair technology are impossible to achieve in the short term equipment boot operation conditions, so the above several solutions is obviously not suitable for the dryer shaft wear repair requirements. Aimed at the abrasion of the shaft, combined with several traditional repair process to determine the scene of the use of polymer composite materials to repair solution. Polymer composite materials for bearing a wear problem according to equipment parameters such as speed, bearing type, use requirement to select different equipment repair process, one of the most commonly used for mould repair process ( See image below) Use of material properties, the repair process, in combination with the practical situation of the scene processing repair tools, is the use of compression molding according to the positioning parts repair worn parts of a process at the site, a short time to repair, repair of high precision, low repair cost, no secondary damage to equipment, easy operation, etc. 4, project implementation process: 1. Will wear position baked oil processing in the first place, remove oil seep into the metal microporous; 2. Use polishing machine will wear position for grinding processing, using alcohol or acetone clean; 3. Will monitor mold die assembly and repair parts, fit, and then remove the brush after demoulding agent standby; 4. In proportion to reconcile the world blue 2211 f materials and stir well until there is no color difference; 5. Using 2211 f materials will wear position filled and slightly larger than wear; 6. Mold assembly, waiting for the material curing; 7. After curing mold and remove excess material removal, assembly again daub material set sets, interval sets and bearing. 8. Later when stop check pressure plate in time, in use process found loose timely processing. Five, the conclusion through the repair, and once again proved that f the blue polymer composite materials with the mold can be a very good solution to solve the equipment transmission parts wear and tear problems, proves that using f the blue field repair process has high repair precision, good satisfy the requirement of the equipment precision, has the repair cost is low, the repair time is short, no secondary damage to equipment, simple operation and other advantages. （ F the blue)