Mixer

Claim 2

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material debouching at the upper end of said sleeve, supply means for liquid being provided underneath said supply inlet, said sleeve accommodating a central mixing shaft coupled to a drive means, said mixing shaft bearing blade holders with blades fitted therein, said blade holders each being rotatable through 360* about an axis of rotation which is perpendicular to the mixing shaft and being fixable in any position by a locking member, said blades extending solely in the upper part of said sleeve and a free granulating space being situtated underneath said blades in said sleeve, deforming means being in contact with the outer surface of said sleeve and being displaceable by displacement means with respect to said sleeve in the longitudinal direction of the mixing shaft.

Claim 3

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material debouching at the upper end of said sleeve, supply means for liquid being provided underneath said supply inlet, said sleeve accommodating a central mixing shaft coupled to a drive means, said mixing shaft bearing blade holders with blades fitted therein, said blade holders each being rotatable through 360* about an axis of rotation which is perpendicular to the mixing shaft and being fixable in any position by a locking member, said blades extending solely in the upper part of said sleeve and a free granulating space being situtated underneath said blades in said sleeve, deforming means being in contact with the outer surface of said sleeve and being displaceable by displacement means with respect to said sleeve in the longitudinal direction of the mixing shaft.

Claim 4

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material debouching at the upper end of said sleeve, supply means for liquid being provided underneath said supply inlet, said sleeve accommodating a central mixing shaft coupled to a drive means, said mixing shaft bearing blade holders with blades fitted therein, said blade holders each being rotatable through 360* about an axis of rotation which is perpendicular to the mixing shaft and being fixable in any position by a locking member, said blades extending solely in the upper part of said sleeve and a free granulating space being situtated underneath said blades in said sleeve, deforming means being in contact with the outer surface of said sleeve and being displaceable by displacement means with respect to said sleeve in the longitudinal direction of the mixing shaft.

Claim 5

A mixer according to claim 1, wherein the central axis of the sleeve encloses an acute angle with the vertical.

Claim 6

A mixer according to claim 1, further comprising an adjusting device with which the angle enclosed by the central axis of the sleeve and the vertical is adjustable.

Claim 7

A mixer according to claim 3, wherein the sleeve is supported by a pivot plate which comprises a passage opening for said sleeve and which is pivotally supported on one side by stationary brackets so as to pivot about a horizontal swivel axis, while, on the opposite side of the pivot plate, supports which can pivot about an axis parallel to the swivel axis of the pivot plate are fitted in slots in the pivot plate, a screw spindle extending through each support, which screw spindle can pivot about an axis which is parallel to the swivel axis of the pivot plate, each screw spindle bearing a displaceable check nut underneath the support and a displaceable retaining nut above the support.

Claim 8

A mixer according to claim 1, wherein at least one blade holder block is mounted on the mixing shaft, which block bears, distributed over its periphery, a plurality of said blade holders each having slots wherein the end of a blade is detachably lockable by means of a locking member, each blade holder being secured by bolt means to a retaining member which is rotatable through 360* about an axis of rotation perpendicular to the mixing shaft, said retaining member being accommodated in a chamber in the blade holder block and being secured against outward displacement by means of a collar of the blade holder block, said retaining member being lockable with the aid of said bolt means in each angular position with respect to the blade holder block.

Claim 9

A mixer according to claim 5, wherein the outer circumference of the blade holder block has substantially the form of an equilateral trianGle or polygon.

Claim 10

A mixer according to claim 6, wherein the outer circumference of the blade holder block is substantially square.

Claim 11

A mixer according to claim 6, wherein each side of the blade holder block is provided with a cylindrical recess, the central axis of which is perpendicular to the mixing shaft and into which a cylindrical end of the corresponding blade holder is fittingly inserted.

Claim 12

A mixer according to claim 8, wherein at least one filling ring is arranged between the bottom of the cylindrical recess in the blade holder block and a projecting outer annular flange of the corresponding blade holder.

Claim 13

A mixer according to claim 5, wherein the blade holder block has a cylindrical bore through which the mixing shaft extends, said blade holder block being lockable in each position with respect to said mixing shaft.

Claim 14

A mixer according to claim 5, wherein each blade holder bears at most two blades.

Claim 15

A mixer according to claim 5, wherein a filling piece is detachably locked by a locking member in a slot of the blade holder.

Claim 16

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material debouching at the upper end of said sleeve, supply means for liquid being provided underneath said supply inlet, said sleeve accommodating a central mixing shaft coupled to a drive means, said mixing shaft bearing blade holders with blades fitted therein, said blade holders each being rotatable through 360* about an axis of rotation which is perpendicular to the mixing shaft and being fixable in any position by a locking member, said blades extending solely in the upper part of said sleeve and a free granulating space being situated underneath said blades in said sleeve, rollers with axes of rotation perpendicular crossing the mixing shaft, being in contact with the outer surface of the sleeve, which rollers are arranged in downwardly spaced successive groups, each comprising a plurality of rollers uniformly distributed over the circumference of the wall of the sleeve, corresponding rollers in successive roller groups being arranged in staggered and overlapping positions with respect to each other, said rollers being journalled on a common support which is coaxial with respect to the sleeve and which is equipped with guide bushings which are slidably mounted on guide rods that are parallel to the mixing shaft, a plurality of cylinder and piston assemblies engaging the support to impart a reciprocating movement to the same.

Claim 17

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material debouching at the upper end of said sleeve, supply means for liquid being provided underneath said supply inlet, said sleeve accommodating a central mixing shaft coupled to a drive means, said mixing shaft bearing blade holders with blades fitted therein, said blade holders each being rotatable through 360* about an axis of rotation which is perpendicular to the mixing shaft and being fixable in any position by a locking member, said blades extending solely in the upper part of said sleeve and a free granulating space being situated underneath said blades in said sleeve, rollers with axes of rotation perpendicular crossing the mixing shaft, being in contact with the outer surface of the sleeve, which rollers are arranged in downwardly spaced successive groups, each comprising a plurality of rollers uniformly distributed over the circumference of the wall of the sleeve, corresponding rollers in successive roller groups being arranged in staggered and overlapping positions with respect to each other, said rollers being journalled on a common support which is coaxial with respect to the sleeve and which is equipped with guide bushings which are slidably mounted on guide rods that are parallel to the mixing shaft, a plurality of cylinder and piston assemblies engaging the support to impart a reciprocating movement to the same.

Claim 18

A mixer, comprising an elongated, substantially cylindrical, upright sleeve, which forms the wall of a mixing chamber, a supply inlet for solid material and a supply inlet for liquid debouching in said mixing chamber, said sleeve accommodating a central mixing shaft coupled to a drive means, at least one blade holder block being mounted on the mixing shaft, which block bears, distributed over its periphery, a plurality of blade holders, each having slots, wherein the end of a blade is detachably lockable by means of a locking member, each blade holder being secured by bolt means to a retaining member which is rotatable through 360* about an axis of rotation perpendicular to the mixing shaft, said retaining member being accommodated in a chamber in the blade holder block and being secured against outward displacement by means of a collar of the blade holder block, said retaining member being lockable with the aid of said bolt means in each angular position with respect to the blade holder block, said blades extending solely in the upper part of the sleeve and a free granulating space being situated underneath said blades in said sleeve.

Claim 19

A mixer, comprising an elongated, substantially cylindrical, upright sleeve, which forms the wall of a mixing chamber, a supply inlet for solid material and a supply inlet for liquid debouching in said mixing chamber, said sleeve accommodating a central mixing shaft coupled to a drive means, at least one blade holder block being mounted on the mixing shaft, which block bears, distributed over its periphery, a plurality of blade holders, each having slots, wherein the end of a blade is detachably lockable by means of a locking member, each blade holder being secured by bolt means to a retaining member which is rotatable through 360* about an axis of rotation perpendicular to the mixing shaft, said retaining member being accommodated in a chamber in the blade holder block and being secured against outward displacement by means of a collar of the blade holder block, said retaining member being lockable with the aid of said bolt means in each angular position with respect to the blade holder block, said blades extending solely in the upper part of the sleeve and a free granulating space being situated underneath said blades in said sleeve.

Claim 20

A mixer according to claim 14, further comprising an adjusting device with which the angle enclosed by the central axis of the sleeve and the vertical is adjustable.

Claim 21

A mixer according to claim 15, wherein the sleeve is supported by a pivot plate which comprises a passage opening for said sleeve and which is pivotally supported on one side by stationary brackets so as to pivot about a horizontal swivel axis, while, on the opposite side of the pivot plate, supports which can pivot about an axis parallel to the swivel axis of the pivot plate are fitted in slots in the pivot plate, a screw spindle extending through each support, which screw spindle can pivot about an axis which is parallel to the swivel axis of the pivot plate, each screw spindle bearing a displaceable check nut underneath the support and a displaceable retaining nut above the support.

Claim 22

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material and a supply inlet for liquid debouching in said mixing chamber, said sleeve accommodating a central mixing shaft coupled to a drive means, at least one blade holder block being mounted on the mixing shaft, which block bears, distributed over its periphery, a plurality of blade holders, each having slots, wherein the end of a blade is detachably lockable by means of a locking member, each blade holder being secured by bolt means to a retaining member which is rotatable through 360* about an axis of rotation perpendicular to the mixing shaft, said retaining member being accommodated in a chamber in the blade holder block and being secured against outward displacement by means of a collar of the blade holder block, said retaining member being lockable with the aid of said bolt means in each angular position with respect to the blade holder block, deforming means being in contact with the outer surface of said sleeve and being displaceable by displacement means with respect to said sleeve in the longitudinal direction of the mixing shaft.

Claim 23

A mixer, comprising an elongated, substantially cylindrical, upright sleeve of flexible material, such as rubber, which forms the wall of a mixing chamber, a supply inlet for solid material and a supply inlet for liquid debouching in said mixing chamber, said sleeve accommodating a central mixing shaft coupled to a drive means, at least one blade holder block being mounted on the mixing shaft, which block bears, distributed over its periphery, a plurality of blade holders, each having slots, wherein the end of a blade is detachably lockable by means of a locking member, each blade holder being secured by bolt means to a retaining member which is rotatable through 360* about an axis of rotation perpendicular to the mixing shaft, said retaining member being accommodated in a chamber in the blade holder block and being secured against outward displacement by means of a collar of the blade holder block, said retaining member being lockable with the aid of said bolt means in each angular position with respect to the blade holder block, deforming means being in contact with the outer surface of said sleeve and being displaceable by displacement means with respect to said sleeve in the longitudinal direction of the mixing shaft.

Claim 24

A mixer according to claim 17, further comprising an adjusting device with which the angle enclosed by the central axis of the sleeve and the vertical is adjustable.

Claim 25

A mixer according to claim 18, wherein the sleeve is supported by a pivot plate which comprises a passage opening for said sleeve and which is pivotally supported on one side by stationary brackets so as to pivot about a horizontal swivel axis, while, on the opposite side of the pivot plate, supports which can pivot about an axis parallel to the swivel axis of the pivot plate are fitted in slots in the pivot plate, a screw spindle extending through each support, which screw spindle can pivot about an axis which is parallel to the swivel axis of the pivot plate, each screw spindle bearing a displaceable check nut underneath the support and a displaceable retaining nut above the support.