The Construction of Adjustable Vacuum Crystallizer Installation for Crystallization of KCL for Forth Production Unit of Belaruskali, JSC
Goal and object’s purpose: construction of new technological line for production of coarse crystalline halurgical potassium chloride with output of at least 1,500,000 tons per year.
Method of production: potassium chloride vacuum-crystallization from hot saturated liquors. Selected process of obtaining coarse crystalline of potassium chloride consists of stepwise liquor evaporation under the vacuum in installation, consisting of seven evaporates. For the purpose of maximum energy efficiency in installation the recovery of thermal energy is provided by cooling of mother liquor with a help of titanium surface heat exchangers and mixing condensers. To reduce foaming the installation equipped with automated preparation and dozing system of antifoam agent.
Final product: coarse crystalline potassium chloride, chemical formula – KCl, average size of cluster crystals of round shape dcp=0,6 – 0,8 mm. The production of coarse crystalline potassium chloride with useful component content in conversion to К₂О not less than 62,0%.
Project implementation term is 20 month.
Delivery package includes the basic technical project with technological solutions and constructional and architectural tasks for designing the production building, three dimensional modeling of the installation.
Basic project’s characteristics:
-
dimensions of engineering building (l*w*h) 80*40*45 meters (height of upper principle building level+ 24,00 m);
-
equipment overall weight is about 2 000 ton;
-
materials of production of crystallizer is steel clad with nickel-copper alloy 400 (2.4360), surface condenser material - titanium, mixing condensers are made from stainless steels;
-
project components are: Sultzer pumps (Switzerland), Egger pumps(Switzerland), SPX Lightnin (Great Britain), valves and piping of Sistag WEY (Switzerland), instrumentation of Endress+Hauser (Switzerland);
-
technological pipelines from stainless steel with protective vinylester-acrylic coatings;
Delivery package includes process automation to the operator’s console.
Delivery package includes commissioning, training and starting-up of all the equipment complex, acceptance testing and starting up.