The distillation tower is made of rare metal titanium and other materials and its alloy materials. It has high strength, high toughness, high temperature resistance, corrosion resistance and light weight. It is widely used in chemical, petrochemical, metallurgy, light industry and textile. , alkali, pharmaceutical, pesticide, electroplating, electronics and other fields.
Distillation column works mature mash fermentation <br> <br> in not only contain alcohol, also contains dozens of other kinds of material components, if coupled with water, these substances far more than the content of alcohol content, mature wake The alcohol content is only about 7-11% (capacity), and impurities including water, alcohols, aldehydes, acids, and lipids account for almost 90%. To get pure alcohol, a certain method must be adopted. Alcohol is separated from mature cockroaches. In the production, the method of heating distillation is adopted, and various boiling point, specific gravity and volatile substances are separated from different equipments to obtain higher purity alcohol.
The working principle of the crude distillation tower is that after the preheating of the fermented mature mash, it enters the upper part of the crude distillation column, and the bottom of the tower is continuously and uniformly heated into the steam. At this time, the liquid alcohol in the mature mash can be converted into alcohol due to the heating effect. The gas, as well as other low-boiling and volatile impurities, become gaseous and enters the aldehyde column together with the alcohol (also directly into the distillation column), and the waste after the distillation is discharged outside the tower.
When the crude distillation tower is operating normally, the temperature at the top of the tower should not be lower than 93 °C, but it should not be too high. The too high top temperature is not beneficial to the separation and consumes a large amount of steam. Generally controlled at 95-96 ° C. When the temperature is too low, the alcohol that is awake does not completely evaporate, and the rate of escape is significantly increased. The boiling point of pure alcohol is 78.3 ° C, but the boiling point of the mixed liquid mixed with water and other components is far more than 78.3 ° C. Therefore, the bottom temperature control of the crude distillation column should not be lower than 105 ° C, generally between 105 ° C and 109 ° C. The mature hydrazine must be preheated before entering the crude distillation tower to reduce the temperature difference, which is beneficial to the stable operation of the crude distillation column. Generally, the preheating temperature should be controlled between 60 and 70 °C. Some production units are generally 5-10 °C lower due to the influence of equipment performance.
In addition to the aldehyde column, the working principle is that after the crude alcohol in the mature hydrazine is subjected to crude distillation, it enters the aldehyde removal tower from the top of the crude distillation column, and is heated and condensed and refluxed in the aldehyde removal tower to contain the crude alcohol. Low-boiling, volatile impurities such as aldehydes and esters are discharged from the aldehyde tube, and the de-alcoholic alcohol enters the liquid phase rectification tower from the bottom of the aldehyde column, and some of the wine heads enter the sputum or mature of the fermenter from the wine head tube. In the middle.
Under normal circumstances, the temperature of the bottom of the aldehyde tower is 86-89 ° C, the temperature of the top of the tower is controlled at 79 ° C, and the water temperature of the 1* condenser on the aldehyde column should not be lower than 60 ° C. The temperature of a condenser after Zui shall not be lower than 25 ° C.
The working principle of the distillation column is that after the above two columns are distilled, the alcohol concentration needs to be further improved, and the impurities need to be further excluded. The distillation purpose of the distillation column is to remove the impurities in the head by heating, condensation, reflux. The fumes oil, the lower tail impurities, and the finished product that meets the quality standard - alcohol.
The temperature at the top of the distillation column should generally be controlled at 79 ° C, the temperature at the bottom of the column should be controlled at 105-107 ° C, and the temperature in the column should be between 88 and 92 ° C under normal conditions. The 1* condenser water temperature on the distillation column should be 60-65 ° C, the 2* condenser should be 35-40 ° C, and the condenser temperature after the Zui is not lower than 25 ° C.
Distillation column works mature mash fermentation <br> <br> in not only contain alcohol, also contains dozens of other kinds of material components, if coupled with water, these substances far more than the content of alcohol content, mature wake The alcohol content is only about 7-11% (capacity), and impurities including water, alcohols, aldehydes, acids, and lipids account for almost 90%. To get pure alcohol, a certain method must be adopted. Alcohol is separated from mature cockroaches. In the production, the method of heating distillation is adopted, and various boiling point, specific gravity and volatile substances are separated from different equipments to obtain higher purity alcohol.
The working principle of the crude distillation tower is that after the preheating of the fermented mature mash, it enters the upper part of the crude distillation column, and the bottom of the tower is continuously and uniformly heated into the steam. At this time, the liquid alcohol in the mature mash can be converted into alcohol due to the heating effect. The gas, as well as other low-boiling and volatile impurities, become gaseous and enters the aldehyde column together with the alcohol (also directly into the distillation column), and the waste after the distillation is discharged outside the tower.
When the crude distillation tower is operating normally, the temperature at the top of the tower should not be lower than 93 °C, but it should not be too high. The too high top temperature is not beneficial to the separation and consumes a large amount of steam. Generally controlled at 95-96 ° C. When the temperature is too low, the alcohol that is awake does not completely evaporate, and the rate of escape is significantly increased. The boiling point of pure alcohol is 78.3 ° C, but the boiling point of the mixed liquid mixed with water and other components is far more than 78.3 ° C. Therefore, the bottom temperature control of the crude distillation column should not be lower than 105 ° C, generally between 105 ° C and 109 ° C. The mature hydrazine must be preheated before entering the crude distillation tower to reduce the temperature difference, which is beneficial to the stable operation of the crude distillation column. Generally, the preheating temperature should be controlled between 60 and 70 °C. Some production units are generally 5-10 °C lower due to the influence of equipment performance.
In addition to the aldehyde column, the working principle is that after the crude alcohol in the mature hydrazine is subjected to crude distillation, it enters the aldehyde removal tower from the top of the crude distillation column, and is heated and condensed and refluxed in the aldehyde removal tower to contain the crude alcohol. Low-boiling, volatile impurities such as aldehydes and esters are discharged from the aldehyde tube, and the de-alcoholic alcohol enters the liquid phase rectification tower from the bottom of the aldehyde column, and some of the wine heads enter the sputum or mature of the fermenter from the wine head tube. In the middle.
Under normal circumstances, the temperature of the bottom of the aldehyde tower is 86-89 ° C, the temperature of the top of the tower is controlled at 79 ° C, and the water temperature of the 1* condenser on the aldehyde column should not be lower than 60 ° C. The temperature of a condenser after Zui shall not be lower than 25 ° C.
The working principle of the distillation column is that after the above two columns are distilled, the alcohol concentration needs to be further improved, and the impurities need to be further excluded. The distillation purpose of the distillation column is to remove the impurities in the head by heating, condensation, reflux. The fumes oil, the lower tail impurities, and the finished product that meets the quality standard - alcohol.
The temperature at the top of the distillation column should generally be controlled at 79 ° C, the temperature at the bottom of the column should be controlled at 105-107 ° C, and the temperature in the column should be between 88 and 92 ° C under normal conditions. The 1* condenser water temperature on the distillation column should be 60-65 ° C, the 2* condenser should be 35-40 ° C, and the condenser temperature after the Zui is not lower than 25 ° C.
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