Cone Crusher Cavity Types Performance and Improvement

Cone crusher is important equipment for crushing stone. 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 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: standard cavity, middle cavity, and short head cavity. Such as 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 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

After 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 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.

 

 

 

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):

 

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):