# US 12,214,360 B2 · Distribution device for slurry > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,360 B2 - Document ID: US12214360B2 - Status: Granted - Kind: B2 - Application number: 17/765,798 - Filed: 2020-09-17 - Published: 2022-10-27 - Granted: 2025-02-04 - Earliest claimed: 2019-10-01 - Assignees: Röhren- und Pumpenwerk Bauer Ges.m.b.H. - Applicants: Röhren- und Pumpenwerk Bauer Ges.m.b.H. - Inventors: Otto Roiss - Web page: https://patentgrep.com/patent/US12214360B2 ## CPC - A01C 23/002: {provided with auxiliary arrangements, e.g. pumps, agitators, cutters} - B02C 23/36: the crushing or disintegrating zone being submerged in liquid - A01C 23/007: {Metering or regulating systems} - B02C 18/06: with rotating knives - A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00) - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) ## Abstract An embodiment of a distribution device for a slurry containing liquid and solid constituents, including a housing, a rotor, a driving unit, and an annular air transmission chamber. The housing includes an inlet, end walls at a driving side and opposite, and a plurality of outlets. The rotor is arranged in the housing and rotatable about a rotation axis, with at least one blade arrangement for sweeping over the outlets and an air distribution chamber for distributing compressed air to the blade arrangement(s). The driving unit has a motor outside the housing and a drive shaft coaxial with the rotation axis which passes through the end wall at the driving side and is connected to the rotor. The transmission chamber is coaxial with the rotation axis, outside the drive shaft, and is connected to the air distribution chamber and an inlet for compressed air, in an air-conducting manner. ## Claims ### Claim 1 A distribution device for a slurry comprising liquid and solid constituents, comprising: a housing with an inlet for the slurry, an end wall at a driving side, an opposite further end wall and a plurality of outlets at one or both of the two end walls for distributing the slurry, a rotor, which is arranged in the housing and rotatable about a rotation axis, with at least one blade arrangement for sweeping over the outlets at the inside of the housing, and an air distribution chamber for distributing compressed air to the at least one blade arrangement, a driving unit with a motor, which is arranged outside the housing, and a drive shaft, which is coaxial with the rotation axis, passes through the end wall at the driving side and is connected to the rotor in a rotationally fixed manner, and an annular air chamber, which passes the end wall at the driving side and is arranged coaxially with the rotation axis and radially outside the drive shaft, wherein the annular air chamber is connected to an air inlet for compressed air at the outside of the housing and to the air distribution chamber at the inside of the housing in an air-conducting manner, and wherein the annular air chamber is entirely outside the drive shaft. ### Claim 2 (depends on 1) The distribution device according to claim 1, wherein the air distribution chamber is formed by a rotor outer wall at the driving side and a rotor inner wall spaced from the rotor outer wall along the rotation axis. ### Claim 3 (depends on 2) The distribution device according to claim 2, wherein the air distribution chamber is delimited radially inwardly by the drive shaft. ### Claim 4 (depends on 3) The distribution device according to claim 3, wherein the air distribution chamber comprises an opening in the rotor outer wall at the driving side, through which the drive shaft extends, wherein radially outside the drive shaft an annular region of the opening is formed as a transition of the annular air chamber into the air distribution chamber. ### Claim 5 (depends on 2) The distribution device according to claim 2, wherein the drive shaft is flanged to the rotor inner wall and the rotor inner wall is arranged to transmit torque from the driving shaft to the rest of the rotor. ### Claim 6 (depends on 2) The distribution device according to claim 2, wherein the rotor comprises a further rotor outer wall, wherein the rotor inner wall is arranged between the two rotor outer walls, closer to the rotor outer wall at the driving side. ### Claim 7 (depends on 6) The distribution device according to claim 6, wherein the further rotor outer wall comprises an aperture for flowing the slurry into an internal slurry chamber of the rotor. ### Claim 8 (depends on 1) The distribution device according to claim 1, wherein the driving unit comprises a motor flange, wherein the drive shaft is rotatably mounted in the motor flange, wherein one side of the motor flange is flanged to the end wall of the housing at the driving side and the motor is flanged to an opposite side of the motor flange, and wherein the air inlet is formed at the motor flange. ### Claim 9 (depends on 8) The distribution device according to claim 8, wherein an outside of the annular air chamber is radially delimited by an annular component of the rotor which is coaxial with the rotation axis and a first sliding seal is arranged between a radial outside of the annular component, and the motor flange. ### Claim 10 (depends on 9) The distribution device according to claim 9, wherein the motor flange protrudes through the end wall at the driving side into an interior of the housing, is thereby spaced from the rotor by a distance and the annular component bridges the spacing distance. ### Claim 11 (depends on 8) The distribution device according to claim 8, wherein an inside of the annular air chamber is radially delimited by the motor flange. ### Claim 12 (depends on 11) The distribution device according to claim 11, wherein the annular air chamber is delimited radially at the inside by the drive shaft. ### Claim 13 (depends on 8) The distribution device according to claim 8, wherein the annular air chamber is delimited radially at the outside by an annular component, which is coaxial with the rotation axis, wherein the annular component is arranged at the motor flange side and a first sliding seal is arranged between a radial outside of the annular component, and the motor flange. ### Claim 14 (depends on 1) The distribution device according to claim 1, wherein the at least one blade arrangement comprises a cavity and at least one annular or tubular blade, wherein the cavity is connected in an air-conducting manner to the air distribution chamber, wherein the blade sweeps over the outlets at the inside of the housing when the rotor is rotated and thereby the cavity is connected in an air-conducting manner to the outlet through the annular or tubular blade. ### Claim 15 (depends on 14) The distribution device according to claim 14, wherein the at least one blade arrangement is a plurality of blade arrangements, each blade arrangement comprising a cavity and at least one annular or tubular blade, and the cavities of the plurality of blade arrangements are connected in an air-conducting manner to an intermediate chamber of the rotor via a respective through-hole, and wherein the air distribution chamber is connected in an air-conducting manner to the intermediate chamber. ### Claim 16 (depends on 1) The distribution device according to claim 1, wherein the rotor is open at some places, so that the slurry can flow radially outwards through the rotor into a free space between the rotor and the housing. ### Claim 17 (depends on 1) The distribution device according to claim 1, wherein the rotor comprises a first width, which is parallel to the rotation axis, and the air distribution chamber comprises a second width, which is parallel to the rotation axis, wherein the second width is at most 50% of the first width. ### Claim 18 (depends on 17) The distribution device according to claim 17, wherein the second width is at most 35% of the first width. ### Claim 19 (depends on 18) The distribution device according to claim 18, wherein the second width is at most 25% of the first width.