|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

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 Fulltext... Hierarchy... Expanded...B01D, e.g. Fulltext... Hierarchy... Expanded...B01D 21/26, Fulltext... Hierarchy... Expanded...B01D 43/00, Fulltext... Hierarchy... Expanded...B01D 45/12)

|  | B04C |
APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES (jet mills Fulltext... Hierarchy... Expanded...B02C 19/06; cyclonic type combustion apparatus Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B04C 5/107)

|  | B04C 5/107 |
· · | Cores; Devices for inducing an air-core in hydrocyclones (forming part of the outlet pipe Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B04C 1/00, Fulltext... Hierarchy... Expanded...B04C 3/00, or Fulltext... Hierarchy... Expanded...B04C 5/00; Multiple arrangements not provided for in one of groups Fulltext... Hierarchy... Expanded...B04C 1/00, Fulltext... Hierarchy... Expanded...B04C 3/00, and Fulltext... Hierarchy... Expanded...B04C 5/00; Combinations of apparatus covered by two or more of groups Fulltext... Hierarchy... Expanded...B04C 1/00, Fulltext... Hierarchy... Expanded...B04C 3/00, and Fulltext... Hierarchy... Expanded...B04C 5/00

|  | B04C 9/00 |
Combinations with other devices, e.g. fans (combinations with filters Fulltext... Hierarchy... Expanded...B01D 50/00)

|  | B04C 11/00 |
Accessories, e.g. safety or control devices, not otherwise provided for (with electrostatic precipitating arrangements Fulltext... Hierarchy... Expanded...B03C 3/14)