Online automatic sugar liquor brix measurement and control system

Abstract

The invention discloses an online automatic sugar liquor brix measurement and control system. A plurality of sugar liquor tanks are respectively connected with 0-4 discharging pipes, feeding pipes, steam pipes and diluent pipes; a brix detector and a cleaning facility are mounted on each sugar liquor tank or the pipe thereof; a temperature sensor, a liquid level sensor and / or a flowmeter are mounted in each sugar liquor tank; a brix measurement and control mainframe is connected with the brix detector, the temperature sensor, the hydraulic sensor and the flowmeter of each tank to obtain the brix, temperature and pressure signals of each tank; the brix measurement and control mainframe is connected with electromagnetic valves on the pipes of the tank, as well as an electromagnetic switch and a cleaning control electromagnetic valve of a high-pressure thermal vapor generator of the brix detector; the brix detector is equipped with a connector, the lower end of which is fixed on the tank in a sealing manner; a prism is a quadrangular prism, the front and rear side surfaces of which are antiparallelograms. The online automatic sugar liquor brix measurement and control system has the advantages of automatically cleaning the sampling surface of the brix detector, ensuring the detection precision, automatically controlling the material temperature, the liquid level and the brix of each tank within optimal values and improving the quality and output of the sugar.

Description

technical field [0001] The invention relates to the technical field of sugar liquid Brix detection and control, in particular to an online automatic measurement and control system for sugar liquid Brix. Background technique [0002] Brix refers to the percentage of the weight of soluble substances contained in the solution to the total weight. In the process of sugar making, the brix value of the syrup mother liquor in the sugar cane from the sugar cane pressing (beet oozing juice) to the boiling sugar is a very important control index. [0003] In the production process of the sugar factory, the control of the Brix value of the sugar juice at each stage can directly affect the production energy consumption and the quality of white sugar. For example, several important processes in the production process, such as adding osmotic water to squeezed juice, heating and evaporating clarified juice, sugar liquid in boiling sugar (commonly known as mother liquor) and dilution of su...

AI Technical Summary

Problems solved by technology

However, during the detection of sugar juice, fouling will occur on the detection device. With the increase of fouling, the measurement deviation will continue to increase, and the deviation will not increase linearly. In practical applications, it is difficult to clean in time, making the detection results difficult to use in process operations.

For example, when using a microwave vibrometer to measure, the surface of the microwave antenna that penetrates into the sugar juice will accumulate in a cylindrical shape and become thicker, and the scale on the antenna is difficult to realize online automatic cleaning

The refractometers that have appeared in recent years have high precision, fast measurement, and easy installation, but there is also the problem that the detection prism is prone to fouling, and fouling may reduce the accuracy to 1%.

Although equipped with hot water washing facilities for the detection prism, it is difficult to achieve regular cleaning and thorough cleaning when used online, so the detection results are still affected by fouling, which reduces the accuracy

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