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Cone Crusher Cavity Types Performance and Improvement
A Cone crusher is an important equipment for crushing stones. Because of its high production efficiency, fine and uniform discharge, it is widely used in stone processing in mining and construction industries. It can break the stone from the following grades of particles. In order to produce different grades of products, crushing can be divided into medium crushing, medium-fine crushing, and fine crushing. The corresponding cavity shapes are standard, intermediate and short head. Our study of cavity-type is the study of the shape of the cone crusher liner.
The difference between various cavity types
The so-called cone crusher cavity, that is the space and shape enclosed by the cone crusher mantle and cone crusher concave. Cone crusher cavities include a standard cavity, middle cavity, and short head cavity. Such as a 7 ft cone crusher, tight parallel bands length 240mm, feed inlet width 105mm as fine cavity; tight parallel bands length 163mm, feed inlet width 334mm as a standard cavity.
| Crusher Cavity | Specification(mm) | Feed Opening Width(mm) | Discharge Opening Width(mm) | Parallel Zone Length(mm) |
| Standard Cavity | PYB 1750 | 250 | 25-50 | 150 |
| 7 FT | 334 | 22-50 | 163 | |
| PYB 2200 | 350 | 30-60 | 175 | |
| Medium Cavity | PYB 1750 | 215 | 10-30 | 150 |
| 7 FT | / | / | / | |
| PYB 2200 | 275 | 10-30 | 250 | |
| Short Head Cavity | PYB 1750 | 100 | 13-15 | 225 |
| 7 FT | 105 | 6-15 | 240 | |
| PYB 2200 | 130 | 10-15 | 300 |
Cone Crusher Cavity， A -Standard Cavity, B-Medium Cavity, C-Short Head Cavity
Change and influence of cavity-type in operation
After the cone liner and bowl liner had installed, its span life just some days. During the production wear process, the cavity shape continuously changes with the wear of the liner. The differences between them appear to be smaller and smaller, and their performance changes with the cavity type. If it regularly exchanges the cone crusher liners, it is ok. However, such as 7 Ft cone crusher, After 2 months of working, the crusher liners also can work, but the processing capacity has been greatly reduced, so we need to study and change the cavity to suit.
Cavity Change Regular Pattern
Fine Cavity Change Regular Pattern
7ft fine cavity cone crusher as an example, when a new set cone crusher liners have installed, the cavity shape like the following figure (a); After one month working, the cavity shape like the following figure (b); After three months working, the cavity shape like the following figure (c):
Fine Cavity Change Regular Pattern
Medium Cavity Change Regular Pattern
7ft medium cavity cone crusher as an example, when a new set cone crusher liners have installed, the cavity shape like the following figure (a); After one month working, the cavity shape like the following figure (b); After three months working, the cavity shape like the following figure (c):
Medium Cavity Change Regular Pattern
