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Monosodium glutamate two-effect countercurrent evaporation crystallization system and its working process
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A two-effect evaporation and evaporation crystallization technology, applied in the field of biochemistry, can solve the problems of high energy consumption and achieve the effect of reducing steam consumption
Active Publication Date: 2017-11-10
无锡荣丰生物工程有限公司
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Problems solved by technology
However, the existing crystallization process is the main cause of high energy consumption, and the requirements for process improvement and innovation are very urgent
Method used
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Embodiment 1
[0046] Example 1 Monosodium glutamate two-effect countercurrent evaporation crystallization system (without steam jet pump)
[0047] Such as figure 1 As shown, the monosodium glutamate two-effect countercurrent evaporation crystallization system includes: a first-effect heater 2, a first-effect crystallizer 3, a first-effect circulation pump 4, a discharge crystal slurry pump 5, an elutriation liquid pump 6, and a second-effect feeding pump 7 , two-effect evaporator 8, condenser 9, condensed water tank 10, condensed water pump 11 and vacuum pump 12;
[0048] The first-effect heater 2 is communicated with the first-effect crystallizer 3, the first-effect crystallizer 3 is communicated with the second-effect evaporator 8, and the second-effect evaporator 8 is communicated with the condenser 9; the first-effect crystallizer 3 and the second-effect evaporator 8 All are communicated with vacuum pump 12; The first-effect crystallizer 3 and the second-effect evaporator 8 are also c...
Embodiment 2
[0050] Example 2 The working process of monosodium glutamate two-effect countercurrent evaporation crystallization system
[0051] As the system shown in embodiment 1, the specific process is as follows:
[0052] (1) vacuuming: open the water inlet and outlet valve of condenser 9, open vacuum pump 12, system is vacuumized, until the pressure of first-effect crystallizer 3 and second-effect evaporator 8 all reaches target value;
[0053] (2) Feeding: Feed to the second-effect evaporator 8 until the liquid level of the second-effect evaporator 8 reaches the target value, open the second-effect feeding pump 7, and feed the first-effect crystallizer 3 through the second-effect feeding pump 7 Suspend feeding until the liquid level of the first-effect crystallizer 3 reaches the target value, and start the first-effect circulation pump 4;
[0054] (3) Turn on the steam: open the raw steam valve, supply steam to the first-effect heater 2, the system material temperature starts to ris...
Embodiment 3
[0082] Example 3 Monosodium glutamate two-effect countercurrent evaporation crystallization system (with steam jet pump)
[0083] Such as figure 1 As shown, the system shown in Embodiment 1 also includes a steam jet pump 1, and the steam jet pump 1 communicates with the first-effect heater 2 and the second-effect evaporator 8 respectively. The one-effect crystallizer 3 is an Oslo type crystallizer. There is a stirrer at the bottom of the Oslo type crystallizer, the stirrer is connected with a motor, and the rotating speed of the stirrer is 18-28r / min.
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Abstract
The invention relates to a double-effect countercurrent evaporation crystallization system for monosodium glutamate and a working process thereof, and belongs to the technical field of biochemistry. The system comprises a steam jet pump, a single-effect heater, a single-effect crystallizer, a single-effect circulating pump, a discharge crystallizing slurry pump, an elutriation liquid pump, a double-effect feeding pump, a double-effect evaporator, a condenser, a condensate tank, a condensate pump and a vacuum pump. The steam jet pump is used at single effect, the single-effect crystallizer is large in evaporation capacity while the double-effect evaporator is small in evaporation capacity, the liquid concentration after double-effect evaporation does not reach the saturation concentration, double-effect crystallization of materials is avoided ingeniously, and both graining and crystal growth are performed in the single-effect crystallizer. The existing single-tank batch crystallization process is modified into a double-effect evaporation crystallization system. The modified system can be used for batch production as well as continuous production, and steam consumption is lowered greatly.
Description
technical field [0001] The invention relates to a monosodium glutamate double-effect countercurrent evaporation crystallization system and its working process, belonging to the technical field of biochemistry. Background technique [0002] The scientific name of monosodium glutamate is sodium glutamate, and the finished product is white columnar crystals or crystalline powder. It is one of the freshness-enhancing condiments widely used at home and abroad. Monosodium glutamate uses sugary or starchy grains as raw materials to produce glutamic acid through fermentation, and then extracts glutamic acid through sterilization, concentration and isoelectric point crystallization, and then neutralizes, decolorizes, evaporates, crystallizes, and dries. Process to make sodium glutamate crystals. [0003] Monosodium glutamate crystallization is a very important process in the production process of monosodium glutamate. During the crystallization process, due to the need for crystalli...
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