Material cooling
Thread Content
1. The company’s product is at around 70 degrees Celsius; when it is transferred to the freezing tank, it is cooled and crystallized using freezing brine at minus 5 degrees Celsius, which results in energy waste. It is planned to install a device on the pipeline before it enters the freezing tank; this device will use cooling water or air cooling to reduce the temperature to around 30 degrees. After that, the mixture enters the freezing tank, where it is cooled further with frozen brine to a temperature of 10–15 degrees before the product is centrifuged out. 2. The product crystallizes at around 50 degrees, which can easily cause pipe blockages. I’m asking if there is any equipment that can meet these operating conditions?
Cooling is achieved using a tubular heat exchanger, and a chemical process pump is used to transfer the crystals into the crystallization vessel.
It means trying to lower the temperature to 30°C, but crystals form at 50°C – so what do you do? You can’t just skip the 50°C level, right?
How did it end up in the self-control area? . .
Our product crystallizes very easily, and after crystal formation it can accumulate on the inner walls of the pipes, causing blockages; as a result, such pipes cannot be used in heat exchangers
What we mean is: it’s too energy-intensive to use frozen saline at 70 degrees; if the temperature is first reduced to around 30 degrees, then using frozen saline would save energy, right?
The thick pipes are used for cooling; when a buffer is employed, the crystals together with the liquid can be pumped using a mixing pump to the crystallization tank.
It does save energy, but doesn’t condition 2 imply that crystallization occurs at 50°C, thus easily clogging the pipes?
Why not use two reactors: one to cool the process water to 30°C and then send it to the freezing reactor to cool it down to 10–15°C?