Continuously-circulating screen vibrating sieve

Abstract

The invention discloses a continuously-circulating screen vibrating sieve. The continuously-circulating screen vibrating sieve is mainly composed of a screen circulation system, a screen excitation system and a screen circulation driving system. The screen circulation system is formed by assembling screen trays, a chain and chain wheels. The screen trays are hinged together through connecting shafts. The screen excitation system is composed of funnels, excitation motors and supporting springs, wherein the funnels are provided with groove-shaped tracks. The funnels are arranged below the circulating screen trays on the screen circulation system. Rollers supporting the circulating screen trays roll in the groove-shaped tracks. The screen circulation driving system is composed of a chain transmission motor and a speed reducer. The chain transmission motor transmits power to the driving chain wheel through the speed reducer, and the driving chain wheel drives the whole screen circulation system to move. The continuously-circulating screen vibrating sieve is simple in structure and convenient to manufacture; the screen can circulate continuously, the self-cleaning capacity is high, and the defects that the self-cleaning capacity of an existing drilling fluid vibrating screen is poor, screen blocking and screen burning are likely to occur, and the solid-phase liquid content after separation is high can be effectively overcome.

Description

technical field [0001] The invention relates to a vibrating screen with continuous circulation screen mesh, in particular to a vibrating screen with continuous circulation of the screen mesh, belonging to the technical field of petroleum drilling equipment. Background technique [0002] The working principle of the existing drilling fluid vibrating screen is to use the exciting force to make the screen basket and the screen mesh produce circular, linear, elliptical and other forms of vibration. Under the action of vibration, the solid phase of the screen surface moves from the feed to At the same time, the liquid phase and the solid phase with a particle size smaller than the screen size pass through the screen, thereby realizing the separation of drilling fluid. The liquid content of the drilling cuttings discharged from the existing drilling fluid shale shaker is as high as 20%, and the drilling cuttings are piled up on the well site. The drilling fluid containing various ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a vibrating screen with continuous circulation screen, the screen can be continuously circulated, and only the screen participates in the vibration, so as to solve the problem of the existing drilling fluid vibrating screen. Poor net self-cleaning ability, prone to sieve blockage, sieve paste, high liquid content in the solid phase after separation, etc.

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