Flow-stabilizing anti-blocking screen hydraulic swirler

Abstract

The invention discloses a flow-stabilizing anti-blocking screen hydraulic swirler. The flow-stabilizing anti-blocking screen hydraulic swirler comprises a machine body, a feeding pipe and an overflowpipe, wherein the bottom of the machine body adopts a conical structure; a discharging opening is formed in the bottom of the machine body; a screening box is in sleeving connection and fixation to outside of the middle part of the machine body; an annular screen is arranged between the screening box and the machine body in a communicating manner; a cylinder is fixedly connected to the inner partof the screening box; a piston is in sliding connection to the inner part of the cylinder in a sealing manner; one end of the cylinder penetrates through the screen in a sealing manner, and the otherend of the cylinder penetrates through the screening box; a pressing rod adopting a cross structure is arranged on one side of the screening box, of the cylinder, in a penetrating manner, and is fixedly connected with the piston; and a spring is in sleeving connection to the part outside the cylinder, of the pressing rod. The flow-stabilizing anti-blocking screen hydraulic swirler disclosed by theinvention has the advantages that the dust adhering state of the screen is detected through a bridge circuit; reciprocating action force on the pressing rod is produced through an electromagnet and the spring, so that inflating the inner side of the screen and pumping air on the outer side of the screen are realized to increase the pressure difference of two sides, so that a great deal of generated bubbles are impacted and broken, adhered coal ash is shattered down, and blocking is avoided.

Description

technical field [0001] The invention relates to the technical field of hydraulic grading equipment, in particular to a screen hydrocyclone capable of stabilizing flow and preventing blockage. Background technique [0002] In the fine coal classification equipment, the cyclone classification equipment has the advantages of simple structure, convenient operation, large processing capacity, high classification efficiency and no transmission parts. Among them, the screening classifier equipment can strictly classify according to the particle size, and It can remove the high ash and fine mud in the coal ash, so that the concentration of the underflow can be significantly increased, and the ash content can be significantly reduced; [0003] Among them, the screen cyclone disclosed in the prior art is a new type of fine particle grading equipment developed by combining the curved screen and the hydrocyclone. Its principle is to feed the material into the cone along the tangent to f...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the screen surface of the screen hydrocyclone in the prior art is easy to block when it is in use, resulting in the inability to stabilize the classification, and proposes a screen hydrocyclone with stable flow and anti-blocking

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