B
SECTION B — PERFORMING OPERATIONS
  
SEPARATING AND MIXING
 B04
CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES (using centrifugal force for the separation of particles from liquids or gases, in general B01D, e.g. B01D 21/26, B01D 43/00, B01D 45/12)
 B04C
APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES (jet mills B02C 19/06; cyclonic type combustion apparatus F23)
 B04C

Note(s)

This sub-class deals with apparatus for separating, mixing or like treating in which centrifugal effects are generated by free vortex flow, otherwise than by rotary bowls, rotors or curved passages.

 B04C 1/00
Apparatus in which the main direction of flow follows a flat spiral
 B04C 3/00
Apparatus in which the axial direction of the vortex remains unchanged
 B04C 3/02
·  with heating or cooling, e.g. quenching, means
 B04C 3/04
·  Multiple arrangement thereof
 B04C 3/06
·  Construction of inlets or outlets to the vortex chamber
 B04C 5/00
Apparatus in which the axial direction of the vortex is reversed
 B04C 5/02
·  Construction of inlets by which the vortex flow is generated (fluid dynamics in general F15D)
 B04C 5/04
·  ·  Tangential inlets
 B04C 5/06
·  ·  Axial inlets
 B04C 5/08
·  Vortex chamber constructions
 B04C 5/081
·  ·  Shapes or dimensions
 B04C 5/085
·  ·  with wear-resisting arrangements
 B04C 5/087
·  ·  with flexible gas-tight walls
 B04C 5/10
·  ·  with perforated walls
 B04C 5/103
·  ·  Bodies or members, e.g. bulkheads, guides, in the vortex chamber (cores B04C 5/107)
 B04C 5/107
·  ·  Cores; Devices for inducing an air-core in hydrocyclones (forming part of the outlet pipe B04C 5/13)
 B04C 5/12
·  Construction of the overflow ducting, e.g. diffusing or spiral exits
 B04C 5/13
·  ·  formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
 B04C 5/14
·  Construction of the underflow ducting; Apex constructions; Discharge arrangements
 B04C 5/15
·  ·  with swinging flaps or revolving sluices; Sluices; Check-valves
 B04C 5/16
·  ·  with variable-size outlets from the underflow ducting
 B04C 5/18
·  ·  with auxiliary fluid assisting discharge
 B04C 5/181
·  ·  Bulkheads or central bodies in the discharge opening
 B04C 5/185
·  ·  Dust collectors
 B04C 5/187
·  ·  ·  forming an integral part of the vortex chamber
 B04C 5/20
·  with heating or cooling, e.g. quenching, means
 B04C 5/22
·  with cleaning means
 B04C 5/23
·  ·  using liquids
 B04C 5/24
·  Multiple arrangement thereof
 B04C 5/26
·  ·  for series flow
 B04C 5/28
·  ·  for parallel flow
 B04C 5/30
·  ·  Recirculation constructions in or with cyclones which accomplish a partial recirculation of the medium, e.g. by means of conduits
 B04C 7/00
Apparatus not provided for in group B04C 1/00, B04C 3/00, or B04C 5/00; Multiple arrangements not provided for in one of groups B04C 1/00, B04C 3/00, and B04C 5/00; Combinations of apparatus covered by two or more of groups B04C 1/00, B04C 3/00, and B04C 5/00
 B04C 9/00
Combinations with other devices, e.g. fans (combinations with filters B01D 50/00)
 B04C 11/00
Accessories, e.g. safety or control devices, not otherwise provided for (with electrostatic precipitating arrangements B03C 3/14)