Installation structure of radar level meter on sewage tank of alumina plant

Abstract

The invention discloses an installation structure of a radar level meter on a sewage tank of an alumina plant, which comprises the radar level meter (1), wherein the radar level meter (1) is installed on a tank cover (3) of the sewage tank (4) through an installation joint pipe (2), a connecting joint pipe (5) is additionally arranged between the installation joint pipe (2) and the tank cover (3), and a ring-shaped steel plate (6) is arranged between the installation joint pipe (2) and the connecting joint pipe (5). The installation structure avoids that the radar level meter is immersed in rainwater, prevents the sewage in the sewage tank from splashing owing to stirring to corrode a bell mouth of the radar level meter, and simultaneously guarantees the effective measurement for the liquid level of the sewage tank by the radar level meter. The installation structure is outstanding in effect, simple in structure, convenient in installation, easy in implementation and worthy of popularization and application.

Description

technical field [0001] The invention relates to the installation structure of the radar liquid level gauge on the sewage tank, especially the installation structure on the sewage tank of an alumina plant. Background technique [0002] The sewage tanks in the alumina production plant are all installed underground, that is, the top cover of the tank is basically flush with the ground, so that the sewage can flow naturally into the sewage tank. In order to prevent sewage from overflowing from the sewage tank, and the recycling of sewage also requires that the liquid level of the sewage tank must be detected and displayed, alarmed and interlocked with the sewage pump. The sewage in the alumina production plant contains alkali and is highly corrosive, and the sewage tank itself is equipped with a stirring device. It is better to use a non-contact measurement method for liquid level detection. The radar level gauge adopts the non-contact measurement method. Its probe integrates t...

AI Technical Summary

Problems solved by technology

The disadvantages of this installation method are: first, the sewage tank itself is located in the lower part of the workshop. When there is a heavy rainstorm and the ground water is deep, only the installation connecting pipe with a height of 150mm will be easily flooded by rainwater. The radar level gauge will be soaked in rainwater, which will damage the radar level gauge

Second, when the liquid level of the sewage tank is high, due to the effect of the stirring device of the sewage tank, some sewage will splash on the bell mouth and corrode the bell mouth

Both situations will affect the service life of the radar level gauge

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