ここから本文です
TWO:Sitting until he dried, Larry donned his garments.

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:The book has been prepared with a full knowledge of the fact, that what an apprentice may learn, as well as the time that is consumed in learning, are both measured by the personal interest felt in the subject studied, and that such a personal interest on the part of an apprentice is essential to permanent success as an engineer. A general dryness and want of interest must in this, as in all cases, be a characteristic of any writing devoted to mechanical subjects: some of the sections will be open to this charge, no doubt, especially in the first part of the book; but it is trusted that the good sense of the reader will prevent him from passing hurriedly over the first part, to see what is said, at the end, of casting, forging, and fitting, and will cause him to read it as it comes, which will in the end be best for the reader, and certainly but fair to the writer.Three soldiers stood before the open door and amused themselves by provoking these people in the most inhuman manner, by abusing them and telling them that later on they would be hanged or shot. The poor fellows shivered and their teeth clattered. I, the newly arrived "swine," was treated in much the same way, but I reduced the insolent blusterers into the quietest people of the world by warning them that by and by I would ask the commanding officer whether his soldiers had the right to call a Netherlander a "swine." That put some heart into my fellow-victims, and I urged them that they would do best by replying calmly to any questions which the commanding officer might put177 to them. They actually became more composed, and told me the following:
  • 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:If the Roman conquest did not altogether put an end to these sentiments, it considerably mitigated their intensity. The imperial city was too strong to feel endangered by the introduction of alien deities within its precincts. The subject states were relieved from anxiety with regard to a political independence which they had irrecoverably lost. Moreover, since the conquests of Alexander, vast aggregations of human beings had come into existence, to which the ancient exclusiveness was unknown, because they never had been cities at all in the ancient sense of the word. Such were Alexandria and Antioch, and these speedily became centres of religious syncretism. Rome herself, in becoming the capital of an immense empire, acquired the same cosmopolitan character. Her population consisted for the most part of emancipated slaves, and of adventurers from all parts of the world, many of whom had brought their national faiths with them, while all were ready to embrace any new faith which had superior attractions to offer. Another important agent in the diffusion and propagation of new religions was the army. The legions constituted a sort of migratory city, recruited from all parts of the empire, and moving over its whole extent. The dangers of a military life combined with its authoritative ideas are highly favourable to devotion; and the soldiers could readily adopt new modes for the expression of this feeling both from each other and from the inhabitants of the countries where they were stationed, and would in turn204 become missionaries for their dissemination over the most distant regions. That such was actually the case is proved by numerous religious inscriptions found in the neighbourhood of Roman camps.313
  • 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