The main reason for the failure of screw oil press, squeezer and cake ring in screw press is caused by wear. In order to improve their wear resistance, the following measures may be taken:
1. Improve screw oil press easy-to-wear smoothness to reduce deformation items.
2. Surface treatment of the wear-prone surface layer, such as plating or coating treatment, to improve its anti-corrosion ability.
3. Reasonably choose the workpiece material, improve the hardness and toughness of the easy-to-wear parts. For example, white cast iron snails have overall high hardness and high hardness carbides, which are more wear-resistant than carburized steel.
4. The sliver is made into a squeezing ring or other structural forms to reduce friction.
5. Change the squeezing snails of the pressing section and the cake ring into a set type, so that it is easy to replace after wear.
6. Changing the multi-stage pressing to one-time pressing can ensure the stability of the pressure in the press chamber.
7. For materials that are easily mixed with mud and sand, they should be screened and cleaned before compaction to reduce abrasive wear.
8. In structural design, reasonably select design parameters, such as helix angle and appropriately increase the length of the press chamber.
9. After working for a period of time, the screw oil press bar should be rearranged to make the wear even and extend its service life.
10. Improve the oil flow direction to reduce the impact and wear of the oil and its particles on the squeezer.
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