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TWO:My country is quite immersed in prejudices, left in it by its ancient masters. The Milanese have no pardon for those who would have them live in the eighteenth century. In a capital which counts 120,000 inhabitants, you will scarcely find twenty who love to instruct themselves, and who sacrifice to truth and virtue. My friends and I, persuaded that periodical works are among the best means for tempting to some sort of reading minds incapable of more serious application, are publishing in papers, after the manner of the English Spectator, a work which in England has contributed so much to increase mental culture and the progress of good sense. The French philosophers have a colony in[7] this America, and we are their disciples because we are the disciples of reason, &c.Hence both in the state of extreme political liberty and in that of extreme political subjection the ideas of honour disappear or get perfectly confused with others. For in the former the despotism of the laws renders the pursuit of the favour of others of no avail; and in the latter state the despotism of men, by destroying civil existence, reduces everybody to a precarious and temporary personality. Honour, therefore, is one of the fundamental principles of those monarchies that are a mitigated form of despotism, being to them what revolutions are to despotic States, namely, a momentary return to the state of nature, and a reminder to the chief ruler of the condition of primitive equality.

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:
  • 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:PREFACE.
  • 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