Spiral conveying device with mud filtering function

Abstract

The invention relates to a spiral conveying device, in particular to the spiral conveying device with a mud filtering function. The spiral conveying device comprises a material trough, a transmission shaft and blades. One end of the transmission shaft extends to the outer end of the front part of the material trough, and the transmission shaft which extends to the outer end of the front part of the material trough is provided with a rotating head in a sealing mode; and the other end of the transmission shaft extends to the outer end of the tail part of the material trough, and the transmission shaft which extends to the outer end of the tail part of the material trough is connected with a power motor through a coupling. According to the spiral conveying device, during the conveying process of drilling mud, solid and liquid separating for the drilling mud can be effectively conducted; the problems that the existing solid controlling device is high in purchasing cost and long in period of separating process, a sieve is likely to be blocked, and maintenance and repair are inconvenient are solved; by the spiral conveying device, the solid and liquid separating efficiency is significantly improved; meanwhile, the spiral conveying device has the characteristics of being low in cost, short in process period and easy to maintain and repair, and has positive popularizing meanings for reducing the purchasing cost of the existing solid controlling device and improving solid and liquid separating of the drilling mud.

Description

Technical field [0001] The invention relates to a screw conveying device, in particular to a screw conveying device with mud filtering function. Background technique [0002] During the drilling of oil and gas wells, the drilling fluid (mud) returned to the surface from the wellhead contains a large amount of drill cuttings, barite and other large solid particles. Under normal circumstances, solids control equipment is used to effectively separate the mud from solid and liquid to retain the liquid and useful solid components, so that the treated drilling fluid (mud) can be reused to reduce drilling costs and protect the environment. [0003] In recent years, the solids control system, from drilling fluid circulation tanks to solids control equipment, has been greatly improved technically, and the technological process has become more reasonable. The purification process of drilling fluid solids control equipment is roughly as follows: wellhead (returned drilling fluid) → drilling ...

AI Technical Summary

Problems solved by technology

[0004] ① It is difficult to select the mesh of vibrating screen and dryer screen, and the screen is easy to block;

[0005] ②Imported products are expensive, the cost of accessories is high, and the cycle is long

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