Transmitter device for measuring residual acidity or alkalinity in uranium mine leaching slurries
A transmitter and leaching technology, applied in the direction of material resistance, etc., can solve the problems of high labor intensity, intermittent monitoring, and inability to immediately and accurately reflect changes in the acid or alkali concentration of the leached pulp, and achieve measurement reliability and accuracy Enhanced effect
Active Publication Date: 2019-12-20
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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Problems solved by technology
At present, most water smelters still use traditional manual intermittent sampling and manual analysis, which only achieves the purpose of intermittently monitoring the concentration of the remaining acid solution in the leached pulp. However, the concentration of acid or alkali in the leaching process and the pulp is a dynamic relationship. After sampling, the remaining acid or alkalinity in the leached pulp still decreases with the increase of time, so the traditional manual analysis method of manual intermittent sampling cannot immediately and accurately reflect the change of acid or alkali concentration in the leached pulp, and the labor intensity of workers bigger
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[0022] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0023] Such as figure 1 As shown, the industrial electromagnetic concentration meter is a conductivity type concentration meter that is based on the principle of electromagnetic induction by measuring the change in the conductivity of the solution to determine its concentration. Compared with the conductivity type concentration meter with electrode measuring parts, its measuring part does not directly contact the solution to be measured, so it is a non-contact conductivity type concentration meter. It has the advantages of high precision, good stability, durability, easy use, and small maintenance workload. The industrial electromagnetic concentration meter uses two toroidal transformers to form the transmitting part, and the current flowing through the measured solution is induced by the excitation transformer and detected by the detection transformer. figure...
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Abstract
The invention belongs to the technical field of auto-measurement of residual acidity for leaching slurry in a hydrometallurgical plant of uranium mine and relates to a transmitter device used for measuring residual acidity or alkalinity in leaching slurry of uranium mine. A measuring probe detection element is disposed in a polypropylene shell. A probe measuring central hole is formed in the polypropylene shell. A temperature sensitive element stainless steel protective casing is disposed on a measuring probe. A built-in temperature sensor can measure the temperature of the leaching slurry. The measuring probe is connected to and is supported by a front circuit board fixing base and a front circuit board protective cover respectively through a stainless steel support and connection tube and an anti-corrosion polypropylene tube. A signal wire passes through the center of the stainless steel support and connection tube from the measuring probe and is led to a front circuit board. The front circuit board is sealed in the front circuit board protective cover and is connected to the front circuit board fixing base through a front circuit board fixing copper column. The front circuit board fixing base is installed on the stainless steel support and connection tube. The device is used for measuring and controlling the residual acidity or alkalinity of the leaching slurry in a leaching process in the hydrometallurgical plant.
Description
Technical field [0001] The invention belongs to the technical field of on-line automatic measurement of residual acidity of leaching pulp in uranium mines and hydrometallurgical plants, and particularly relates to a transmitter device for measuring residual acidity or alkalinity in leaching pulp of uranium mines. Background technique [0002] Most ore leaching processes in uranium hydrometallurgical plants use acid or alkaline leaching processes. The process requires continuous measurement and control of the remaining acidity or alkalinity in the slurry. The method of measuring the conductivity of the leaching slurry is widely used at home and abroad to indirectly and continuously measure the remaining in the leaching process. Acidity or alkalinity, factory practice shows that it is feasible. In the early days, the old-fashioned Su 2400-like electrode conductivity meter was used because the electrode material must be a precious metal or special alloy with high chemical stability;...
Claims
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IPC IPC(8): G01N27/06
CPCG01N27/06
Inventor 陈福平周丽华陈强李绍海
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY