Annular screen

Abstract

The invention relates to an annular screen. The annular screen is characterized by comprising a transmission belt and a screen, wherein the side edge of the screen is connected with the transmission belt; the side edge of the screen is buried into the middle part of the transmission belt or is combined with the upper surface of the transmission belt to form a whole body; the screen is provided with a connection part; and the connection part is used for connecting the two ends of the screen to form a closed annular shape. The annular screen has the beneficial effects that 1, the screen can be driven by a certain driving device to do circular movement so that an original lasting impacted partial range of falling-off mud is enlarged, partial abrasion of a previous single screen is reduced and the service life of the screen is prolonged; 2, the annular screen only needs to increase the support at a falling-off region of the mud and the manufacturing cost of the single screen is reduced, and meanwhile, the separation aim can be realized by one layer of the single screen and the manufacturing cost is saved.

Description

technical field [0001] The invention relates to a ring screen. Background technique [0002] At present, screens in oil drilling engineering are mainly used in vibrating screen equipment, and screens of different sizes and diameters are used to remove useless solids and collect useful solids in drilling fluid. It has played an increasingly important role in the drilling process and has become an indispensable part of the drilling system. It is one of the important auxiliary tools to improve drilling efficiency and reduce drilling costs. The current screens are almost all used together, which requires that the whole screen needs to be tensioned to a certain requirement, so as to meet the requirements of the vibration inertia force and achieve the optimal separation efficiency. At the same time, due to the continuous impact of the drilling fluid on a In the fixed area, the screen is severely worn and replaced frequently. In order to solve this problem, the network has success...

AI Technical Summary

Problems solved by technology

The current screens are almost all used together, which requires that the whole screen needs to be tensioned to a certain requirement, so as to meet the requirements of the vibration inertia force and achieve the optimal separation efficiency. At the same time, due to the continuous impact of the drilling fluid on a In the fixed area, the screen is severely worn and replaced frequently. In order to solve this problem, the network has successively adopted double-layer screens, multi-layer screens, bonded screens, and a combination of various screen styles to increase the screen capacity. service life, and at the same time explore the separation efficiency, service life and maintenance of moderate solutions under various combinations of working conditions, but no matter which method is used, there are shortcomings similar to the following: (1) short service life; (2) The screen structure is unreasonable and the filtering effect is poor; (3) The screen replacement is inconvenient, etc.

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