Arc-shaped sieve plate capable of reducing blockage of sieve seams

Abstract

The invention provides an arc-shaped sieve plate structure capable of reducing sieve seam blockage. The arc-shaped sieve plate structure comprises sieve wires, back ribs and feeding and discharging end angle steel; The sieve wires are arranged in parallel; an included angle of 60 degrees is formed between the arrangement angle of the sieve wires and the feeding and discharging end angle steel and the back ribs; the cross section of each sieve wire is wedge-shaped; the back width of each sieve wire is 0.8 mm-1. 5mm; the wedge-shaped small end of each sieve wire is welded on the back rib by adopting damping welding; the back ribs are parallel to the angle steel; and the width of the sieve seams is 0.35 mm to 1.0 mm. According to the arc-shaped sieve plate, material clamping and blocking of sieve wires of the arc-shaped sieve plate can be reduced, the aperture ratio is high, and it can be guaranteed that the sieve wires have a certain cutting effect on slurry.

Description

technical field [0001] The invention relates to the technical field of coal preparation equipment, in particular to an arc-shaped sieve plate for reducing sieve clogging. Background technique [0002] Curved screen is an efficient solid-liquid separation equipment, which is widely used in the dehydration and de-intermediation process of coal preparation plants. The wires of the curved sieve plates in the prior art are perpendicular to the flow direction of the slurry, which has a certain cutting effect on the slurry, but at the same time, the particles in the slurry whose particle size is roughly equivalent to the size of the sieve slot will block the sieve slot, resulting in a curved screen. The reduction of plate opening ratio leads to the deterioration of the mediation and dehydration effect of the curved sieve. [0003] Therefore, due to the above-mentioned technical defects in the prior art, it is a problem to be solved in this technical field. Contents of the invent...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a curved sieve plate that reduces the clogging of the sieve slots, aiming at solving the problem of clogging of the screen slots in the prior art, and ensuring that the screen wires of the curved sieve plate have a certain cutting effect on the slurry

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