A method for correcting deviation of backwater flow detection

Abstract

The invention belongs to the detection and the correction of the flow of the industrial cyclic utilization backwater for mines, mineral separation, and chemical engineering production process. A method disclosed by the invention is mainly used for solving the problem of the reverse drifting of the flow detection values when a flow meter and an inner wall of a fluid pipeline are low in flow speed to be bonded. The invention provides the method for fast correcting and solving the problem that the reduced diameter is changed when the flow speed is low caused by the bonding of the inner wall of a water supply pipeline of the industrial backwater. The flow detection precision of the backwater production process is improved, an on-line measuring method of the wall thickness of the pipeline is provided, the wall thickness of the same cross section of the pipeline is measured by a portable thickness measuring instrument according to different acoustic wave conductivities of different media, the effective inner diameter of the backwater pipeline is calculated according to the wall thickness of each point, a fast correcting algorithm is provided for the drifting when the detection flow of the backwater is slow, the automatic control of the backwater flow can be possible under complicated conditions, and the algorithm is simple and easy to realize.

Description

technical field [0001] The invention relates to the flow detection and correction of industrial recycling backwater in the production process of mines, ore dressings and chemical processes, and is mainly used to solve the problem of reverse drift of the flow detection value caused by the slow time-varying bonding between the flow meter and the inner wall of the fluid pipeline. Background technique [0002] In order to realize the recycling of resources and reduce the consumption of new water, most mining, mineral processing and chemical industry and other high-energy-consuming enterprises neutralize and settle the wastewater discharged from the production process in the purification tank, and then the bottom of the purification tank flows through the slurry pump and returns to the stockpile. Reservoir or other treatment processes, return water (supernatant in the purification tank) returns to the production process to continue recycling. In order to reduce production costs, ...

AI Technical Summary

Problems solved by technology

With the passage of time, the deviation between the flow detection data and the actual value is getting bigger and bigger, which eventually leads to the inability to provide guidance for production operations, let alone the automatic operation of the control loop

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