Abstract: An agitator ball mill comprising a grinding chamber having a cylindrical wall, and further having a rotatably mounted agitator shaft extending into the grinding chamber and on which at least one agitator element is arranged inside the grinding chamber. The mill further comprises an inlet for supplying to the grinding chamber material to be ground and grinding bodies, an outlet for removal of the ground material, and an induction heater for the material to be ground located in the grinding chamber, the induction heater comprising an inductor and a susceptor. The at least one agitator element comprises a susceptor material which forms the susceptor of the induction heater, wherein the inductor comprises at least one coil which is arranged outside the cylindrical wall of the grinding chamber and encompasses the grinding chamber, and wherein the cylindrical wall of the grinding chamber consists of an electrically and magnetically non-conductive material.

Abstract: An agitator ball mill comprising a grinding chamber having a cylindrical wall, and further having a rotatably mounted agitator shaft extending into the grinding chamber and on which at least one agitator element is arranged inside the grinding chamber. The mill further comprises an inlet for supplying to the grinding chamber material to be ground and grinding bodies, an outlet for removal of the ground material, and an induction heater for the material to be ground located in the grinding chamber, the induction heater comprising an inductor and a susceptor. The at least one agitator element comprises a susceptor material which forms the susceptor of the induction heater, wherein the inductor comprises at least one coil which is arranged outside the cylindrical wall of the grinding chamber and encompasses the grinding chamber, and wherein the cylindrical wall of the grinding chamber consists of an electrically and magnetically non-conductive material.

Abstract: A dimensionally stable ring element (1, 2) for a heat exchanger casing (3) includes: a cylindrical sleeve (10, 20) having a cylinder axis (102, 202), a first end (104, 204) and a second end (106, 206) remote from the first end, and having an inner wall (108, 208), a dividing wall (11, 21) which projects inwards from the inner wall (108, 208) of the sleeve (10, 20) and extends helically around the cylinder axis (102, 202) along the inner wall (108, 208) from the first end (104, 204) of the sleeve (10, 20) to the second end (106, 206) of the sleeve (10, 20). At its first end (104, 204) the sleeve (10, 20) includes a projection (109, 116, 209, 216) extending parallel to the cylinder axis (102, 202), which projection is arranged in a predetermined circumferential position on the sleeve (10, 20).

Abstract: An agitator ball mill comprises agitating discs (18) on an agitating shaft, wherein two adjacent agitating discs (18) are bounding a grinding cell, respectively. The agitating discs (18) comprise grinding material passage openings (28) which are only arranged in the immediate proximity of a grinding chamber inner boundary (19), which connect adjacent grinding cells, and which have a radially outer boundary that has a distance R28 starting from the grinding chamber inner boundary (19) in the radial direction of the agitating disc (18). For the ratio of the distance R28 of the radially outer boundaries of the grinding material passage openings (28) to a radial extension R18 of the agitating discs (18), the following condition applies: 0.05·R18?R28?0.25·R18. Otherwise the agitating discs (18) are closed.

Abstract: An agitator ball mill includes a grinding chamber, a rotatably mounted agitator shaft, which protrudes into the grinding chamber and on which agitator elements, in the form of paddle wheels, are arranged spaced apart from one another axially, and an inlet for supplying material to be ground and grinding bodies and an outlet for removal of the ground material. The agitator elements are constructed in such a way that, during operation, they convey a mixture consisting of material to be ground or dispersed and grinding bodies through their interior outwards away from the agitator shaft. In the grinding chamber there are arranged return conveyor elements which are joined to the agitator shaft for conjoint rotation therewith and which convey the mixture laterally alongside and/or between the agitator elements inwards towards the agitator shaft.

Abstract: An agitator ball mill that includes agitating discs (18) on an agitating shaft drivable in a spinning direction (38), which are provided with entraining profiles (35). These entraining profiles (35) are formed by a trailing wall of a respective channel of a plurality of channels (36). In relation to the spinning direction (38) the trailing wall (39) of an inner channel section (49) runs radially straight relative to the central longitudinal axis (15) and has a length f, and has an outer bent-off channel section (41), which is bent off counter to the spinning direction (38). The outer channel sections (41) are closed radially to the outside by a peripheral portion (42) of the agitating disc (18) having a radial width e.

Abstract: A dimensionally stable ring element (1, 2) for a heat exchanger casing (3) comprises: a cylindrical sleeve (10, 20) having a cylinder axis (102, 202), a first end (104, 204) and a second end (106, 206) remote from the first end, and having an inner wall (108, 208), a dividing wall (11, 21) which projects inwards from the inner wall (108, 208) of the sleeve (10, 20) and extends helically around the cylinder axis (102, 202) along the inner wall (108, 208) from the first end (104, 204) of the sleeve (10, 20) to the second end (106, 206) of the sleeve (10, 20). At its first end (104, 204) the sleeve (10, 20) comprises a projection (109, 116, 209, 216) extending parallel to the cylinder axis (102, 202), which projection is arranged in a predetermined circumferential position on the sleeve (10, 20).

Abstract: An agitator ball mill comprises a grinding chamber (1), a rotatably mounted agitator shaft (5), which protrudes into the grinding chamber (1) and on which agitator elements (10, 20, 30), in the form of paddle wheels, are arranged spaced apart from one another axially, and an inlet (6) for supplying material to be ground and grinding bodies and an outlet (7) for removal of the ground material. The agitator elements (10, 20, 30) are constructed in such a way that, during operation, they convey a mixture consisting of material to be ground or dispersed and grinding bodies through their interior outwards away from the agitator shaft (5). In the grinding chamber (1) there are arranged return conveyor elements (17, 27, 37; 47; 57) which are joined to the agitator shaft (5) for conjoint rotation therewith and which convey the mixture laterally alongside and/or between the agitator elements (10, 20, 30) inwards towards the agitator shaft (5).

Abstract: An agitator ball mill for the fine-grinding or dispersion of a grinding material, including a container the inner wall of which delimits a cylindrical or conical, vertically arranged grinding chamber, a grinding material inlet for feeding the grinding material into the grinding chamber, a grinding body inlet for introducing grinding bodies into the grinding chamber, and a grinding material outlet for discharging the ground or dispersed grinding material from the grinding chamber, and a rotatably driven agitator having at least one agitator element and extending in the axial direction in the grinding chamber.

Abstract: An agitator ball mill having a milling chamber and an agitator having a rotatably mounted and driven agitator shaft and accelerators arranged thereupon, wherein the accelerator that is arranged furthest downstream, that is, the accelerator closest to the milling material outlet, lengthens axially and extends along the axial length of the sieve.

Abstract: An agitator ball mill for finely grinding or dispersing material has a cylindrical or conical grinding chamber for accommodating grinding bodies and for accommodating the material which is to be ground or dispersed. It also has an inlet, which is arranged at one end of the grinding chamber, an agitator, which extends in the axial direction into the grinding chamber and has agitating means, and a product outlet for the ground or dispersed material, the product outlet being arranged at the other end of the grinding chamber. Arranged in a central region at the outlet end of the grinding chamber is a gas outlet through which gaseous components, but not grinding bodies, can be discharged out of the grinding chamber.

Abstract: An agitator ball mill having a milling chamber and an agitator having a rotatably mounted and driven agitator shaft and accelerators arranged thereupon, wherein the accelerator that is arranged furthest downstream, that is, the accelerator closest to the milling material outlet, lengthens axially and extends along the axial length of the sieve.

Abstract: An agitator ball mill for finely grinding or dispersing a material comprises a grinding chamber for accommodating grinding bodies and for accommodating the grinding material. The grinding chamber has an inlet for the grinding material and is provided with an agitator which can be driven in rotation and has agitating means for moving the grinding bodies and the grinding material. A separating arrangement for separating off the grinding bodies from the ground material is arranged in the grinding chamber. The grinding chamber also has a product outlet for the material which has been ground and freed from grinding bodies, wherein the ground material passes through the separating arrangement into the product outlet. The separating arrangement is designed as a sedimentation centrifuge which can be driven in rotation and has an axial entrance, or an entrance which is at least in the vicinity of the axis, for the material intermixed with the grinding bodies.

Abstract: An agitator ball mill for finely grinding or dispersing material has a cylindrical or conical grinding chamber for accommodating grinding bodies and for accommodating the material which is to be ground or dispersed. It also has an inlet, which is arranged at one end of the grinding chamber, an agitator, which extends in the axial direction into the grinding chamber and has agitating means, and a product outlet for the ground or dispersed material, the product outlet being arranged at the other end of the grinding chamber. Arranged in a central region at the outlet end of the grinding chamber is a gas outlet through which gaseous components, but not grinding bodies, can be discharged out of the grinding chamber.

Abstract: The horizontally operating stirred ball mill has a cylindrical grinding chamber (50) serving for receiving grinding media, a material inlet (37) arranged at the end of the grinding chamber (50) and opening into the interior (3) of the grinding chamber (50), a material outlet (38) arranged at the other end of the grinding chamber and leading out of the interior (3), a stirrer (1) having a plurality of stirrer members (2) and coaxial with the chamber axis (60), and a separation system present upstream of the material outlet (38) and consisting of a separation member (80) and a drive member which drives said separation member and which separates the grinding media from the ground material and transports them back into the interior (3) of the grinding chamber (50).

Abstract: An agitator-type ball mill has a circumferential wall which bounds a working chamber having an axis and includes two radially spaced jackets which form therebetween a gap for receiving a heat-exchange medium. The jackets are releasably connected with one another so that they can be separated from each other by displacement in an axial direction. A flexible member is arranged in the gap between the jackets, connected with one of the jackets, and forms a substantially helical passage in the gap. The heat exchange medium flows through the thus-formed helical gap. The flexible member may be formed by a band which is inserted in a helical groove provided in one jacket and extends radially into the gap so as to abut against the other jacket with prestress.