How does the roller crusher work?

Figure 2-10 shows the structure and working principle of the roller crusher . The roller 1 is mounted on a fixed bearing 4 on the frame 3, and the roller 2 is supported by a movable bearing 4'. The two rollers are respectively driven by two motors and are rotated in opposite directions. The ore is fed from the upper part and the crushing is carried out in the gap formed between the two rolls. Since the use of multi-metal mine smooth roll face, so crushing effect mainly by crushing, grinding and some incidental effect (in the case of the tooth surface by chop main effect). The broken material is discharged by gravity. The crusher is characterized in that since the material passes through the middle of the two rolls and is only pressed once, the over-grinding phenomenon is less.

The roller crusher has the advantages of simple structure, compact and light weight, reliable operation, low price and convenient maintenance, and the crushed product has uniform particle size, small crushing, and fine product size (can be broken to less than 3 mm). Therefore, it is suitable for the treatment of brittle materials and small-scale plants (such as tungsten ore) containing clay and sticky materials.

The main disadvantage of the roller crusher is its low processing capacity.

The specifications of the roller crusher are expressed by the roll diameter and the roll length.

Baby Neck Ring

Baby neck ring is a swimming practice ring specially designed for babies. During the period when the baby can't raise his head, use the swimming ring worn on the baby's neck. The height of the baby swimming pool is basically designed according to the height of the baby on the neck. The baby swimming ring is divided into different specifications such as S/M/L/XL. It is made of rubber, PVC and other materials, and has different shapes such as round, star, and animal.
PVC is a new type of material. Compared with plastic, PVC Material has certain advantages, such as good gloss, good hand feeling, good comfort, firmness, and not easy to leak water. In addition, the double airbags basically used in baby swimming rings made of PVC material. , The design of four airbags basically does not have potential safety hazards.

Baby neck ring size tips:
S: 3-4 kg
M: 4-6 kg
L: 6-8 kg

XL: Above 8kg