Combination mixing and conveying device for highly viscous fluids
OwnerFriedhelm Schneiderinventor
Life of this patent
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Abstract
For mixing and conveying of highly viscous fluids, the invention provides a single-stage or multi-stage axial centrifugal pump to which the components to be mixed are fed through lateral connections (10, 12) in front of the first rotor (FIG. 1). The blades (4, 4') of the or of each rotor (FIG. 2) have at least one hole (5). The lateral connections (10, 12) have at least one mixing nozzle (12) with several holes (13). The pump housing consists of two parts. Fixed guide blades (2, 2') are provided in the lower part (1), out of which the upper part (5) together with rotor shaft (3), its bearings (7, 8) and the rotors can be lifted. A relief and control opening (15) is provided above a gasket (14) which separates the upper part (5) from the inside of the pump.
Claims12
In a combination mixing and conveying device for highly viscous fluids comprising a hollow cylindrical housing having an inner wall on which are mounted several stationary guide blades forming guide wheels and coaxially to which extends a rotor shaft having rotor blades thereon, said cylindrical housing with said guide blades forming guide wheels on said inner wall defining a stator and said rotor shaft with said rotor blades thereon defining a rotor;
- an annular space between said inner surface and an exterior surface of said rotor shaft and defining a mixing chamber;
- means defining a closure member closing off one end of said cylindrical housing, said closure member having an opening therethrough receiving said rotor shaft;
- said closure member having a slide-ring packing engaging said exterior surface of said rotor shaft for sealing off said mixing chamber;
- means defining a lateral inlet opening to said mixing chamber for said fluids to be mixed and means defining an outlet opening from said mixing chamber for a mixed mixture, the improvement comprising wherein said parts, hollow cylindrical housing includes lower and upper housing said mixing chamber being provided in said lower part, said rotor blades on said rotor shaft being oriented in a first set of rotor blades at an upper portion of said mixing chamber and a second set of rotor blades at a lower portion of said mixing chamber, said lateral inlet opening into said upper portion of said lower part above said first set of rotor blades, each blade of said first and second sets of rotor blades having means defining at least one hole therethrough, said guide blades being oriented in a first set of stator blades coaxial with and axially spaced from said first set of rotor blades and in a second set of stator blades coaxial with an axially spaced from said second set of rotor blades, said first and second sets of rotor blades being equidistantly spaced from said first and second set of stator blades.
Dependencies are inferred from the claim text.