Detecting and controlling method for liquid level of high-temperature solution

Abstract

The invention discloses a detecting and controlling method for the liquid level of a high-temperature solution. The detecting and controlling method is characterized in that an electric conduction baseboard used for transmitting electric wave signals is arranged at the bottom of a high-temperature solution kiln; an exploring electrode used for sampling the electric wave signals is arranged above the high-temperature solution and controlled to move close to the surface of the high-temperature solution until the exploring electrode is in contact with the high-temperature solution, and the exploring electrode starts to sample to obtain contact signals; the exploring electrode is controlled to move far away from the surface of the high-temperature solution until the exploring electrode is separated from the high-temperature solution, and the exploring electrode starts to sample to obtain falling-off signals; a liquid level detector receives the contact signals and the falling-off signals generated from the above steps and transmits the signals to a PLC (Programmable Logic Controller); the liquid level height is obtained through PLC treatment; based on the liquid level height obtained from the above step, and the feeding frequency is obtained through the formula shown in the specification. According to the invention, the detecting and controlling method has the benefits that the liquid level can be kept stable continuously, the technical index in the kiln can be guaranteed to reach technological requirements, the yield and the qualified rate of products can be improved, and the rejection rate is low.

Description

technical field [0001] The invention relates to the technical field of high-temperature solution liquid level measurement, in particular to a high-temperature solution liquid level detection and control method. Background technique [0002] Basalt continuous fiber is a continuous fiber made of basalt ore as raw material, which is melted at a high temperature of 1450-1500 degrees, and drawn at high speed through a platinum-rhodium alloy drawing bushing. In addition to the characteristics of high strength and high modulus, the fiber is It also has excellent properties such as high / low temperature resistance, acid and alkali resistance, oxidation resistance, radiation resistance, heat insulation and sound insulation, fire and flame retardancy, etc. Therefore, basalt fiber can be widely used in fire protection, environmental protection, aerospace, military industry, automobile and ship manufacturing, engineering Plastics and construction and other fields. [0003] The ore for p...

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Problems solved by technology

[0006] The invention overcomes the shortcomings of the measurement and control method used in the prior art, such as difficulty in measuring the liquid level of the high-temperature solution, low measurement accuracy, difficulty in controlling the liquid level, which affects the stability of subsequent processes such

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