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TWO:Frederick was now in imminent danger of being assailed by a coalition of Austria, Russia, Poland, and England. Indeed, it was by no means certain that France might not also join the alliance. All this was the result of Fredericks great crime in wresting Silesia from Austria. Such was the posture of affairs when, in the summer of 1755, Frederick decided to take a trip into Holland incognito. He disguised himself with a black wig, and assumed the character of a musician of the King of Poland. At Amsterdam he embarked for Utrecht in the common passage-boat. The king mingled with the other passengers without any one suspecting his rank. There chanced to be in the boat a young Swiss gentleman, Henry de Catt, twenty-seven years of age. He was a teacher, taking a short tour for recreation. He gives the following account of his interview with the king, whom, at the time, he had no reason to suppose was other than an ordinary passenger. We give the narrative in his own words:On the evening of the 3d of December, 1757, the king arrived at Parchwitz, in the heart of Silesia, about thirty miles from Breslau. Here the wreck of Prince Beverns army joined him. Thus re-enforced, he could bring about thirty thousand men into the field. He immediately, in the night, assembled his principal officers, and thus addressed them; the words were taken down at the time. We give this characteristic address slightly abbreviated:

Hydrocyclone (liquid cyclone)01

Hydrocyclone (liquid cyclone)02

A hydrocyclone (liquid cyclone) injects treatment solution into stationary equipment to perform separation, classification, and concentration, and is an innovative separator with a very simple structure and no drive unit.

Structure of a hydrocyclone (liquid cyclone)

A suspension containing fine particles of several micrometers or more is supplied to a cylindrical container circumferentially at high speed. And as a result it starts to rotate and a centrifugal force is generated. At this time a gravitational acceleration of several tens of thousands of G is generated in the circumferential direction, and thus leading to fast sedimentation and concentration of the fine particles. The separated concentration can be freely selected by changing the supply rate (supply pressure and flow rate) and the flow ratio of the outlet. Our hydrocyclone (liquid cyclone) was designed and manufactured to classify and concentrate fine particles, and so has a small element.

THREE:On the 15th of March Frederick left Berlin for Silesia. Stopping to examine some of his works at Glogau and Breslau, he reached Neisse on the 23d. On the 29th he dismissed the Old Dessauer, with many expressions of kindness and sympathy, to go home to recover his health.
  • Equipment costs can be reduced.
  • Operating costs can be reduced.
  • Maintenance costs can be reduced.
  • Any change in raw material and product can be easily addressed.
  • Large amounts can be treated in a small area.
  • Separation and cleaning are easy because of the simple structure.
  • Simplified control
  • This equipment can be operated in synchronization with external devices.
  • Alarm and interlock mechanism.
THREE:491 The rumor that Daun was marching upon Berlin proved a false alarm. On the 4th of September the king again wrote DArgens from his encampment at Waldau, a few leagues south of his last position, just over the border in Saxony:
  • Classification and concentration for the manufacture of inorganic powder materials
  • Classification of ceramic materials
  • Removal of fine particles, including iron powder
  • Removal of fine particles from pigments
  • Removal of fine organic particles from solvents
  • Separation of starch and yeast
  • Removal of fine particles from high-temperature strong acid solutions
  • Removal of fine particles from low-temperature solutions