Ball selecting method of briquette machine

In addition to the need to repair the spherical shape of the briquette machine, it is also necessary to change materials of different natures. The simple and clear way is to replace the roller skins of different ball socket shapes, but how to choose the shape and size of the ball socket?

1. Select the shape according to the material

The characteristics of each material are different, only some materials can share the same shape of the ball socket and can ensure the ball formation rate and strength. (1) For dry powder materials, it is suitable to choose flat square ball sockets, and because this raw material is not allowed to add any binder during pressing, it is not possible to use large and deep ball sockets, otherwise it is difficult to guarantee Ball rate (2) For powdered materials that require a binder, a larger round ball socket should be used, so as to better control the moisture of the material and the amount of binder, so as to ensure the ball formation rate and the ball formation strength; (3) If the material needs to be pressed by wet method, the ball should use small and medium-sized ball sockets, and the diameter of the pellet should be 3 to 5 cm, so as to ensure the formation rate and strength.

2. Determination of spherical size

The spherical size of the briquette machine directly affects the demolding and ball formation strength of the pellets, but this size cannot be determined casually. The size of the ball needs to be determined according to the diameter of the roller of the briquette machine, and then the ball The diameter determines the depth of the ball socket. (1) The size and specifications of the ball on the roller of the briquette machine can be customized and processed according to requirements, but there is also a corresponding range. The spherical size of the briquette machine should be determined according to the diameter of the counter roller. When the diameter of the counter roller is small, the spherical size cannot be made too large. If the contact surface of the counter roller is exceeded, the material is difficult to form, but it If it is too small, it should not be less than 15 mm under normal circumstances. If it is too small, it will affect the service life of the roller skin. If you want to use a larger ball socket on a small diameter counter roll, you can choose to use a pillow-type ball socket to increase the spherical size appropriately. (2) The depth of the ball socket should be determined according to the diameter of the ball, which directly determines the demolding condition of the ball. Never increase the depth of the ball socket in order to increase the output, otherwise it will lead to the failure of the ball demolding The deeper ball socket depth will also affect the surface finish of the ball.