Irregular shaking type sand screening device

Abstract

The invention discloses an irregular shaking type sand screening device. The irregular shaking type sand screening device comprises a base, a screening frame and a movable block; vertical plates are symmetrically fixed on the left and right sides of the top of the base; a support plate is fixed between the vertical plates on the two sides; the screening frame is arranged above the support plate; the bottom of the screening frame is connected with the support plate through a connecting spring; multiple slide rods, vertically arranged, are connected to the bottom of the screening frame at equalintervals; the lower ends of the slide rods penetrate through the support plate, and downwards extend; rollers are mounted at the bottoms of the slide rods; the movable block is arranged between the base and a mounting plate, and is slidingly connected with the base through a slide block; a curved surface is arranged at the top of the movable block; a movable frame is fixed in the center positionof the bottom of the movable block; the movable frame adopts a front-back opening design; and straight tooth surfaces are symmetrically arranged on the upper and lower surfaces of an inner cavity of the movable frame. Through reinforcement of irregular shaking of the screening frame, the screening efficiency can be effectively improved.

Description

technical field [0001] The invention relates to a screening device, in particular to an irregular shaking sand screening device. Background technique [0002] In building construction, fine sand is one of the most important building materials. However, the raw materials of sand are relatively rough and need to be filtered and screened. We mainly rely on sand screening machines to separate them from some sundries. This is very widely used. of sand. Sand screening machine, also known as Delong dry land sand screening ship, is suitable for sand and stone separation equipment on rivers, reservoirs, coal yards and construction sites. Very commonly used mechanical equipment is widely used in many fields, and its role in production and construction is becoming more and more obvious. [0003] Most of the existing sand screening devices have the problem of low efficiency. The reason is that the relative movement between the sand and the sieve plate is not very violent, and a relati...

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Problems solved by technology

[0003] Most of the existing sand screening devices have the problem of low efficiency. The reason is that the relative movement between the sand and the sieve plate is not very violent, and a relatively direct way to strengthen this relative movement is to strengthen the insufficiency of the sieve plate. regular movement, so the present invention proposes an irregular shaking sand screening device

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