1. Product Introduction of Sodium sulfate crystallization system

The solubility curve of sodium and sulfuric acid changes greatly after 40 ℃, which shows that the solubility of sodium is much higher than that of sulfuric acid. This means that the effect of cooling crystallization and precipitation of sodium sulfate below 40 ℃ will be very obvious. If it is reduced from 30 ℃ to 10 ℃, 31.8 g of sodium sulfate will be precipitated in the saturated solution corresponding to 100 g of water, with a precipitation rate of 78%. It can be seen that for sodium sulfate solution, cooling crystallization has lower energy consumption and better effect than evaporation crystallization.

2. Product Parameter (Specification) of Sodium sulfate crystallization system

3. Product Feature And Application of Sodium sulfate crystallization system

The sodium sulfate solution in the solution storage tank passes through the heat exchanger and is precooled with the low-temperature and low concentration mother liquor separated by centrifuge. The low-temperature mother liquor is heated and returned to the crusher sorting system as the system make-up water. The sodium sulfate solution enters the thickener, which is equipped with scraper and cooling coil, with external insulation layer. The refrigerant is circulated in the cooling coil, and the cooling capacity is generated by the refrigeration unit. Sodium sulfate is cooled and crystallized in the thickener, the concentrated phase at the bottom enters the centrifuge for separation, the solid from the centrifuge enters the dryer to remove the crystallization water, the mother liquor enters the mother liquor pool, and the mother liquor in the mother liquor pool is pumped to the heat exchanger to pre cool the sodium sulfate solution. The dryer uses the hot flue gas of the furnace as the heat source to remove the crystal water from the sodium sulfate decahydrate crystal to obtain anhydrous sodium sulfate. The sodium sulfate enters the storage bin and enters the packaging after cooling.

4. Product Details of Sodium sulfate crystallization system

1). The system has two modes: PLC automatic control and manual control.

2). Schneider is used as the main control electrical, Siemens as the PLC brand, and international and domestic well-known brands such as GF, coreda, chengci, etc. are selected as the instruments.

3). The storage tank is equipped with a liquid level transmitter to digitally display the liquid level; The system is equipped with necessary high and low voltage protection switches.

The control object in the system is mainly the switching value, and the control object involved is mainly the control of pump equipment except the on-off valve. That is to say, the system is a system based on switching value control; Therefore, this control system adopts programmable logic controller (PLC) to complete the automatic control of electrical and instrument parts, and can display the main monitoring indicators and system operation status in the process.

5. Product Qualification of Sodium sulfate crystallization system

The Sodium sulfate crystallization system is made of Acid resistant material, which can meet the Acidic environment.

6. Deliver, Shipping And Serving of Sodium sulfate crystallization system

Professional loading engineers shall complete the loading to ensure that no accidents will occur during transportation.

7. FAQ

1). How many years have your company made this kind of equipment?

RE: Since 2010.

2). Do you have detailed and professional installation manual?

RE: We provide detailed installation, operation and maintenance instructions.

3). Are you a trading company or a manufacturer?

RE: We are directly design and manufacturing supplier.

4). Can you can design the equipment according to our size?

RE: Sure. We provide non-standard designed and manufactured equipment.

5). How many staff abroad you sent to install the equipment?

RE: Provide 2-3 engineers to guide installation and commissioning. 1-2 mechanical engineers, 1 Automation Engineer.

6). How many days you need to install the equipment?

RE: The equipment specifications and quantities of each project are different, and the normal single unit lasts about 30 days.

Xiangtan Lufeng Machinery Co., Ltd. was established in 2010 and is located in the Industrial Park of Hunan Xiangtan High-tech Zone. Through more than 10 years of precipitation and development, Lufeng company has made many achievements in the design and manufacture of high-quality copper&lead&zinc smelting equipment.

Today, Lufeng has become one of the best manufacturers of high-quality smelting equipment in China and abroad, such as copper&lead smelting furnace, linear ingot casting machine, disc ingot casting machine, lead pot refining system, lead-acid battery crushing and sorting system, copper&lead&zinc electrolysis system, etc.