Online massecuite fluidity change detection instrument and detection method of sugar refinery

Abstract

The invention discloses an online massecuite fluidity change detection instrument and detection method of a sugar refinery. The detection instrument comprises a shaft seal mounting plate, a bearing mounting plate and a motor mounting plate. A shaft seal assembly and a bearing assembly are respectively arranged on the shaft seal mounting plate and the bearing mounting plate. A stepping motor connected with a control host through a signal cable is mounted at the rear end of the motor mounting plate. A rotating shaft is coaxially mounted on the shaft seal assembly and the bearing assembly; one ormore propellers are mounted at the front end of the rotating shaft; and the rear end of the rotating shaft is connected with an output shaft of the stepping motor through a coupler arranged between the bearing mounting plate and the motor mounting plate, A front shaft seal mounting plate is in sealed butt joint with a detector adapter on the crystallizing tank by using a quick-mounting hoop and the propellers extend into the crystallizing tank. According to the invention, the current or voltage of the stepping motor is detected by the detection instrument and comparison and operation are carried out on the currents or voltages in air and water, thereby realizing real-time detection of the online massecuite fluidity change.

Description

technical field [0001] The invention relates to the detection technology of the production process of boiled sugar, in particular to an instrument and a detection method for detecting the fluidity change of massecuite on-line in a sugar factory. Background technique [0002] In the existing sugar boiling process in domestic sugar factories, the flow effect of massecuite will directly affect the crystallization environment and crystal growth rate. The paste is maintained at the required supersaturation, and the crystals in it are moved by the flow of the mother liquor, so that the sugar solution can produce convective circulation in the crystallization tank to achieve the purpose of sugar extraction. [0003] The convection of the massecuite in the crystallization tank has a great relationship with the effect of boiling sugar: [0004] 1. The convection of massecuite is good, the water evaporation speed is fast, the cooking time is shortened, the material handling capacity i...

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Problems solved by technology

[0005] 2. Poor circulation of massecuite will cause various problems such as sugar melting, sticking crystals, pseudocrystals, coking and prolonging cooking time.

[0006] 3. The convection of the massecuite is too fast, and it is easy to cause the sugar to go away

Due to the different experience of each operator, there are some differences in the results of the observation and inspection; and because the fluidity of the massecuite needs to be checked repeatedly according to different stages in the process of boiling sugar and growing crystals, and the massecuite is extracted from the sampling stick of the crystallization tank. For the groove type, whenever the operator observes and checks the change of fluidity, it needs to pull the sampling rod several times for sampling to obtain a relatively average inspection result, which greatly increases the labor intensity of the operator

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