Features of fine bar screen

To have a clearer understanding of the fine bar screen sub-equipment, some of its characteristics are now described as follows.

Here is the content list:

The screening principle of "large sieve small particles".

Effective prevention of clogging of the fine bar screen.

Constantly update the materials.

Significant development of production and measuring technology

The screening principle of "large sieve small particles"

Most of the fine bar screen equipment adopts the screening principle of "large sieve small particles". The relationship between the width of the sieve opening of the curved sieve (including the vibrating fine sieve, etc.) and the separation particle size. When the sieve width is 1.0mm, the separation particle size is 0.5mm, that is, the separation particle size is half of the sieve width, which is normal. But when the mesh width of the Fine bar screen is less than 1.0mm, the separation particle size is less than half of the mesh width. When the sieve width is greater than 1.0mm, the separation particle size is greater than half of the sieve width. That is, the separation particle size varies with the width of the sieve. The smaller the mesh width of the fine bar screen, the finer the separation particle size becomes. These are the valuable features of the curved-screen as a fine particle screening and grading device.

Effective prevention of clogging of the fine bar screen.

Different Fine bar screen equipment has different mechanisms to prevent clogging of the screen holes. Lin Dalike sieve uses the high-speed, low-amplitude vertical elliptical movement of the motor and the elasticity of the screen. The UR-type sieve uses a linear vibrator and the principle of the air jet. Ultrasonic sieving machine can not only prevent the sieve of Fine bar scree from clogging, but also increase the sieving efficiency when sieving fine materials. Most of these fine vibrating screens use high-frequency and low-amplitude vibration to avoid clogging the screen holes.

Constantly update the materials.

Fine bar screen adopts a screen made of stainless steel wedge-shaped sieve bars, with a bar width of 1.6mm and a sieve width of 0.089mm. The use of synthetic compound materials instead of stainless steel to make Fine bar screen screens is still developing rapidly. The nylon fine sieve widely used in our country is made of domestic nylon 1010 raw material, with a grating structure, and an injection-molded fine sieve. It has the obvious advantages of wear resistance, low price, and the screen hole is not easy to be blocked.

Significant development of production and measuring technology

As a Fine bar screen is a new development in screen material, industrial screens with a mesh size of 0.05mm have been manufactured. The fine bar screen used in foreign laboratories has a minimum mesh size of 5μm or even 1～2μm, which is called an electroformed microporous screen. With the development of fine bar screen mesh manufacturing technology, the measurement technology of mesh size has also been developed. The test shows that the size of the sieve is of decisive significance for improving the grade of iron ore concentrate.

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