Method for crystallization, concentration of monosodium glutamate and recycling method of second-time refrigerating residual heat of steam
A technology of secondary steam, concentration and crystallization, which is applied in application, food preparation, food science, etc., can solve the problems of increasing the production cost of monosodium glutamate, consuming large cooling water, and energy waste, so as to improve energy utilization efficiency, reduce energy consumption, Achieving low-cost effects
Inactive Publication Date: 2010-07-28
LINGHUA GROUP INCORPORATED COMPANY
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the process is simple, it has the disadvantages of serious waste of energy.
Since the crystallization process of monosodium glutamate needs to be carried out under negative pressure, the secondary steam in the crystallization tank must be removed at any time, and the condensation of the secondary steam also consumes a large amount of cooling water
On the one hand, MSG refining consumes a lot of steam, on the other hand, a large amount of secondary steam is emptied, and waste heat is seriously wasted, which not only causes waste of energy, but also increases the production cost of MSG
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0015] When monosodium glutamate is concentrated, the secondary steam (75°C, 0.25kg / cm 2 , 1.0t / h) enter the cyclone separator for vapor-liquid separation, the liquid part returns to the vacuum crystallization tank, and the vapor part is sprayed into the indirect evaporator through the ejector. After the secondary steam expands in the indirect evaporator to absorb the heat of the chilled water, it enters the condenser to condense (condensing temperature 37°C, condensing pressure 0.06kgf / cm 2 ). The generated condensate is sent to the glutamic acid production workshop to prepare the glutamic acid feed liquid, and the non-condensable gas is evacuated by the vacuum pump.
[0016] Chilled water (flow rate 22.7t / h, temperature 15-20°C) is pumped from the glutamic acid production workshop to the indirect evaporator, and then pumped back to the glutamic acid production workshop after exothermic cooling in the indirect evaporator (down to 10°C) Cool down and use.
[0017] After the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention discloses cooling process of utilizing the afterheat in the secondary steam generated during sodium glutamate concentrating crystallization, and belongs to the field of sodium glutamate producing technology. The process includes absorbing the heat of cooling water with the secondary steam generated during crystallization via expanding contact and evaporating chilling, condensating the secondary steam in the condensator, and pumping the heat released cooling water to glutamic acid producing shop for cooling. The present invention has obvious energy saving effect and may be used widely in sodium glutamate production.
Description
technical field [0001] The invention relates to the field of monosodium glutamate production, in particular to a monosodium glutamate concentration crystallization secondary steam waste heat refrigeration recycling method. Background technique [0002] At present, my country's monosodium glutamate is refined by evaporation and crystallization process. In the process of evaporating the monosodium glutamate feed liquid, a large amount of primary steam needs to be consumed, and a large amount of low-pressure secondary steam is also generated. In the prior art, the generated secondary steam is condensed and evacuated directly through a vacuum pump. Although the process is simple, there are deficiencies such as serious waste of energy. Since the crystallization process of monosodium glutamate needs to be carried out under negative pressure, the secondary steam in the crystallization tank must be pumped out at any time, and at the same time, the condensation of the secondary ste...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/228A23L27/22
Inventor 杨玉岭满德恩李高卫胡昆之王玉政姬广坤
Owner LINGHUA GROUP INCORPORATED COMPANY