NEWS
release time:
2022-03-11 10:42
In the production process of aluminum sulfate, the step of evaporative crystallization is indispensable. This is a more important process in the production of finished products. So what equipment is used for evaporative crystallization, and what kind of process is used to complete the fabrication. , let's find out with me.
Evaporation and crystallization equipment is recommended to use forced external circulation three-effect evaporator. The forced external circulation three-effect evaporator has the advantages of high heat transfer coefficient, high evaporation intensity, easy operation and reasonable energy consumption. Generally, the methods of continuous feeding, continuous discharging, and countercurrent evaporation are used to ensure that the high-concentration concentrate is discharged at a high-efficiency and high temperature, which can ensure the discharge concentration and avoid the precipitation of solid aluminum sulfate due to low-temperature discharge. The dilute solution is first added to the three-effect evaporator, and then enters the second and first-effect evaporators after being evaporated. The steam will then enter the heating chamber of the first-effect evaporator in turn, and the condensed water can be returned to the boiler after the condensed water is discharged after heat exchange and condensation.
The secondary steam generated by the evaporation of the first-effect separation chamber will enter the shell side of the second-effect heating chamber. After condensing and heat exchange, it will enter the third-effect jacket for flash evaporation and then mixed with the secondary steam condensate from the second-effect and then discharged. The secondary steam evaporated by the three-effect is condensed in the condenser and then discharged for subsequent use in the chemical process. Generally, it is necessary to use condensed water to further reduce the content of calcium and magnesium ions in the solution, which can reduce the scaling of the tube wall. Because the corrosiveness of the solution is relatively strong, in order to prolong the service life of the equipment, the main material of the evaporator needs to be made of titanium, and the evaporation should be carried out in a state of negative pressure and low temperature as much as possible. corrosion.
The above describes that aluminum sulfate generally needs to be sent to the evaporator when evaporating and crystallizing, and the process of its operation. It is necessary to pay attention to controlling the temperature and ensure that the sequence of the entire process is correct.
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Houyu Industrial Park, Xiajiazhuang Town, Boshan District, Zibo City, Shandong Province
Zibo Boshan Win-Win Chemical Co., Ltd. was established in 2002, It is a manufacturer specializing in the production and export of industrial aluminum sulfate, iron-free aluminum sulfate, high-purity aluminum sulfate, flame retardant aluminum sulfate, lithium battery grade aluminum sulfate, ferrous sulfate, aluminum hydroxide and other chemicals.
Contact information：+86186-0731-6212
Address: Houyu Industrial Park, Xiajiazhuang Town, Boshan District, Zibo City, Shandong Province
Domestic business：Manager Yang +8618653340892
Domestic business：+86-533-4200240
Copyright© 2022 Zibo Boshan Win-Win Chemical Co., Ltd. All Rights Reserved
Zibo Boshan Win-Win Chemical Co., Ltd. was established in 2002, It is a manufacturer specializing in the production and export of industrial aluminum sulfate, iron-free aluminum sulfate, high-purity aluminum sulfate, flame retardant aluminum sulfate, lithium battery grade aluminum sulfate, ferrous sulfate, aluminum hydroxide and other chemicals.
Contact information：+86186-0731-6212
Address: Houyu Industrial Park, Xiajiazhuang Town, Boshan District, Zibo City, Shandong Province
Domestic business：Manager Yang +8618653340892
Domestic business：+86-533-4200240
Copyright© 2022 Zibo Boshan Win-Win Chemical Co., Ltd. All Rights Reserved