It has simple and reliable structure, stable operation, good sealing, no pollution, low noise, fast screen change, fine grading, large sorting proportion, high output, accurate sorting, low failure rate, convenient maintenance and other advantages, and is especially suitable for grading use in sand and stone quarry.
The roller screen is fine and durable. The steel frame is welded with profile steel. The hopper has large volume and is made of steel plates. There are five funnels for discharging. The funnel mouth is connected with a flange, which can feed materials to both sides or one side, which is convenient for hauling or gravity flow, improves the output, and prevents plugging materials from wearing the screen mesh and delaying production.
Single axis exciting elliptical screen
The elliptical vibrating screen, which became popular in the mid-1990s, has the advantages of both linear and circular vibrating screens. The elliptical shale shaker in common use is driven by three shafts. It is required to be equipped with six universal shafts and a synchronize. However, due to the large volume, complex structure and high cost of its transmission system, it is not suitable for small and medium-sized vibrating screens below 20 ㎡.
In order to overcome the shortcomings of the prior art, such as large volume, complex structure and high cost, the invention provides a single shaft exciting elliptical vibrating screen. The technical feature is that the screen box can generate elliptical motion driven by the circular exciting force of a single axis by using the difference between the horizontal tuning value and the vertical tuning value of the vibration system.
The quality indicators of the screen are mainly screening capacity [t/h] and screening efficiency [%]. It is generally required that the screening efficiency of the screen machine shall not be less than 70%. Compared with linear vibration, the screening efficiency can reach more than 90% under the same screening capacity according to the use of elliptical vibrating screen that has been put into production. Because the screen hole is not blocked, the screen surface cleaning work under very bad working conditions can be greatly reduced; In addition, the plant height and the cost of equipment investment in the whole project will be greatly reduced.
The heavy vibrating screen can be divided into elliptical vibrating screen, circular vibrating screen, linear vibrating screen, self centering vibrating screen, etc.
according to the movement track. The light vibrating screen is mainly represented by the three-dimensional vibrating screen filter, also known as rotary vibrating screen. The movement track can be adjusted, and it is widely used in food, pharmaceutical, chemical, paint, beverage filtering, abrasive and other industries. The three-dimensional vibrating screen filter is derived from the 450 filter, standard inspection screen, Ultrasonic vibrating screen is the most widely used