Zhongyu Heavy Industry

To select a right vibratory screen requires the user to clarify the hourly capacity, material type, feed gradation, particle shape, application type (wet or dry), type of screen media and deck opening. Such accurate information may also help the end user to maximize the performance of the vibrating screen during the operation. The main obstacles to efficient screening are carryover, plugging and blinding. Each can be minimized with a variety of solutions.

Carryover occurs when excessive undersize particles fail to pass through the openings. Solutions may involve changing stroke, speed or reversing screen rotation; changing wire diameter or the shape of the opening to increase open area; changing the angle of inclination; changing feed tonnage; controlling feed segregation; and centering feed on the screen.

Plugging happens when near-size particles become lodged, blocking the openings. Solutions may include increasing stroke, changing media wire diameter or opening shape, using urethane or rubber media, and adjusting crusher settings.

Blinding occurs when moisture causes fine particles to stick to the surface media and gradually cover the openings. If changing the screen media does not improve the situation, consider ball trays or heated decks. Ball trays incorporate rubber balls into pockets beneath the screen cloth. As the machine vibrates, the balls strike the media to free collected material. Heated decks have an electric current in the wire that heats and dries material, so that it easily knocks itself loose as the screen vibrates.

Zhongyu Heavy Industry Co., Ltd has over 30 years of experience in manufacture of mining equipment. Various types of vibratory screen are available for your selection. If you have any interest, welcome to contact us at any time.