Grinding vessel for a stirred mill and stirred mill having such a grinding vessel

Abstract

The present invention provides a grinding container for a stirred mill, the grinding container having a grinding chamber boundary and a cylindrical container sleeve having an axially extending portion adjacent to the grinding chamber boundary, the cylindrical container sleeve having an outer sleeve and an inner sleeve arranged concentrically with the outer sleeve, wherein the grinding chamber boundary has a surrounding groove-shaped recess in the region of the inner sleeve, and during axial linear expansion caused by temperature, a first axial end of the inner sleeve can sink into the recess; and the present invention provides a stirred mill having such a grinding container.

Description

Technical Field

[0001] The present invention relates to a grinding container for a stirred mill and a stirred mill having such a grinding container. Background Technology

[0002] Stirred mills are used for fine and ultrafine grinding of solids in liquid or dry materials. A conventional stirred mill consists of a grinding vessel in which a stirring shaft containing grinding elements is rotatably supported. These grinding elements can be constructed as stationary discs or impact elements, and the material is pulverized by the impact, shear, and friction forces generated when the stirring shaft rotates. These mills are used in a variety of industries, such as the cement and mineral industries, pigment and dye production, as well as the pharmaceutical industry and food processing.

[0003] In high-temperature applications, such as in specialized processes in the metallurgical or chemical industries, mills can operate at temperatures well above 100°C, making the thermal expansion of components crucial. This is particularly true for grinding vessels, where the temperature difference between the inner and outer sheaths leads to high mechanical stresses. These stresses arise because the inner vessel undergoes greater linear expansion due to process heat than the cooler outer vessel. In this situation, mechanical stresses, critical to the integrity of the entire grinding vessel, are established, particularly placing significant stress on the connection between the grinding vessel and the vessel lid. To address this issue, conventional stirred mills used in high-temperature applications employ oversized flange connections and bolted connections to absorb the resulting stresses. The installation and disassembly of such mills have proven time-consuming and often require specialized tools. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a possibility for effectively compensating for strain.

[0005] According to the invention, this objective is achieved in each case through the subject matter of the independent claims.

[0006] According to a first aspect of the invention, a grinding container for a stirred mill is provided, the grinding container having a grinding chamber boundary and a cylindrical container sleeve having an axially extending portion adjacent to the grinding chamber boundary, the cylindrical container sleeve having an outer sleeve and an inner sleeve arranged concentrically with the outer sleeve, wherein the grinding chamber boundary has a surrounding groove-shaped recess in the region of the inner sleeve, and in the event of axial linear expansion caused by temperature, a first axial end of the inner sleeve can sink into the groove-shaped recess.

[0007] According to a second aspect of the invention, a stirred mill having a grinding container according to the invention is provided.

[0008] A fundamental idea of ​​this invention is to avoid the linear expansion of the grinding container due to heat and the stress generated by this linear expansion in the grinding container elements by modifying the structure of the grinding container or the boundary of the grinding chamber (e.g., the container lid of the grinding container). According to the design of the invention, the linear expansion of the inner sleeve in the axial direction due to temperature is advantageously at least partially compensated, thereby reducing or avoiding critical mechanical stress. In this case, the groove-shaped recess of the grinding chamber boundary ensures that when temperature-induced expansion occurs, the free axial end of the inner sleeve can expand into the recess within the grinding chamber boundary. Here, the groove-shaped recess allows the inner sleeve to extend into the recess until it reaches the bottom of the groove, preventing premature contact between the inner sleeve and the grinding chamber boundary. This avoids the load on the grinding chamber boundary and the occurrence of critical mechanical stress in the connection between the container sleeve and the grinding chamber constraint. Only when the inner sheath, already at the bottom of the tank, undergoes further (especially exceeding normal dimensions) linear expansion due to increased container temperature, must the mechanical stress applied to the grinding chamber boundary be absorbed and compensated through the connection between the grinding chamber boundary and the grinding container (i.e., through the grinding container flange and the connecting devices used therein, such as bolt connections). However, since the overall reduced stress, which is less critical to the integrity of the grinding container, must be absorbed in this case, the connection between the container sheath and the grinding chamber boundary (i.e., the grinding container flange in particular) can be designed to have a smaller size. Furthermore, the size and number of connecting devices can be reduced. This has a beneficial effect on the overall complexity and weight of the stirred mill and reduces installation and disassembly costs.

[0009] Another fundamental idea of ​​this invention is to enable the use of the improved stirred mill according to the invention in applications with high operating temperatures without having to adjust the number and size of the connecting devices (e.g., flange connections and screw connections).

[0010] Advantageous implementations and improvements are derived from the dependent claims with reference to the independent claims and the description with reference to the accompanying drawings.

[0011] According to one embodiment, the axial depth of the groove-shaped recess is designed to be greater than the axial linear expansion of the inner sheath of the stirred mill within a defined operating temperature range. As a result, the thermally induced axial expansion of the inner sheath can be accommodated within the recess, so that the inner sheath does not abut against the fixed boundary until a later time. Therefore, the inner sheath remains almost freely movable within the defined operating temperature range, and jamming between the inner sheath and the grinding chamber boundary associated with mechanical stress is avoided or significantly reduced. Since the expansion of the inner sheath has no or only slight force effect on the container sheath and its grinding chamber boundary within the defined temperature range, the load on the threaded connections used to connect the various components of the grinding container is advantageously reduced, allowing for a lightweight and smaller overall design. Therefore, the connections between the various components of the grinding container only need to be designed to absorb less critical mechanical stresses that occur when the linear expansion exceeds normal dimensions.

[0012] According to an improved design, the radial width of the groove-shaped recess is greater than the wall thickness of the inner sheath. This larger radial width ensures that the inner sheath does not become radially stuck in the recess, thus advantageously avoiding thermal confinement and material stress. Therefore, the inner sheath can also expand axially without hindrance, without being restricted in its movement by an excessively tight fit.

[0013] According to one embodiment, a sealing element, particularly a compressible sealing element, is provided for insertion into a groove-shaped recess. In this configuration, the sealing element ensures a seal during the linear expansion of the inner sheath and can be displaced without damage by the inner sheath. Simultaneously, the sealing element prevents abrasive materials or process media from penetrating into the groove-shaped recess, thereby avoiding contamination or blockage of the expansion space. Due to its compressibility, the sealing element can also compensate for manufacturing tolerances and ensure a reliable seal even under varying operating conditions. Furthermore, the sealing element also protects the contact surfaces of the recess and the inner sheath from abrasion by penetrating abrasive materials.

[0014] According to an improved design, the groove-shaped recess has an enlarged circumferential portion for receiving a sealing element. Advantageously, this enlarged portion reliably holds the sealing element within the recess, preventing slippage or release during operation. The enlarged portion is also configured to fully receive the sealing element once the axial end of the inner sheath abuts against the bottom of the groove-shaped recess. This targeted reception of the sealing element allows for improved sealing because it can expand and adapt uniformly without exerting excessive pressure on adjacent components.

[0015] According to an improved embodiment, the sealing element is designed as a sealing ring or sealing profile whose shape substantially corresponds to a groove-shaped recess. This specific shape advantageously achieves a precise fit between the sealing element and the axial ends of the recess or inner sheath, further improving the seal. The specially molded construction of the sealing element ensures a reliable seal, prevents abrasive materials or process media from penetrating into the expansion space, and can compensate for thermal and mechanical movement according to the corresponding profile shape without losing the sealing effect. The sealing profile can have various designs and can be, for example, designed as a lip profile with a flexible sealing lip, a raised profile with surrounding protrusions to ensure uniform contact pressure and improve the seal under pressure, or a compressible profile with an internal cavity; the invention is not limited to these forms. In the last mentioned embodiment, the hollow cavity located inside the profile is capable of elastic deformation in several directions, thereby allowing the sealing element to compensate for movement in the axial and radial directions.

[0016] According to one embodiment, the second axial end of the inner sleeve, opposite to the first axial end, is fixed within the grinding container. Fixing the second axial end ensures that temperature-induced expansion of the inner sleeve occurs only in a defined direction, thus avoiding uncontrolled material stress. Furthermore, the inner sleeve's single axial direction freedom of movement reduces the need for complex guiding elements or additional sealing mechanisms at both axial ends of the grinding container. Of course, corresponding compensation devices can also be provided at both ends of the grinding container, thereby achieving a floating support for the inner sleeve.

[0017] According to one embodiment, the inner sheath is arranged radially spaced relative to the outer sheath. This radial distance between the inner and outer sheaths advantageously reduces direct heat conduction, thus allowing the outer sheath to heat up more slowly and better compensating for the temperature difference between the inner and outer sheaths. The air space between the two sheaths, or optionally an insulating interlayer, acts as insulation, protecting the external structure of the mill from overheating and preventing the same heat-induced stress state from occurring in the outer sheath. Since the inner sheath can expand independently of the outer sheath, the different thermal expansion (also radial thermal expansion) between the two sheaths also reduces stress.

[0018] According to an improved design, a cooling system is provided positioned between the outer sheath and the inner and outer sheaths. This cooling system advantageously enables targeted temperature regulation of the inner sheath, thereby preventing heating or overheating beyond permissible limits and improving the thermal stability of the grinding process. Active cooling reduces the temperature difference between the inner and outer sheaths, thus minimizing mechanical and material stresses.

[0019] According to an improved embodiment, the cooling system has coolant lines (particularly spiral) surrounding the inner sheath. This spiral arrangement of the coolant lines allows for large-area and uniform heat dissipation along the inner sheath, minimizing temperature gradients. The spiral guide maximizes the contact area between the cooling medium and the inner sheath, thereby improving heat dissipation and enhancing cooling performance. Uniform cooling, combined with the design of the grinding container according to the invention, advantageously contributes to reducing or avoiding heat-induced material stress.

[0020] According to one embodiment, the outer sheath can be secured to the grinding chamber boundary via a flange connection, particularly by screwing it onto the grinding chamber boundary. This advantageously establishes a stable connection between the outer sheath and the grinding chamber boundary. High stress in the flange connection is avoided through the design of the container sheath according to the invention, particularly by compensating for the linear thermal expansion of the inner sheath. Therefore, excessively large flange or screw connections are not required to connect the container sheath to the grinding chamber boundary, especially the container cap. Furthermore, since there is no need to absorb extreme forces caused by thermal stress, smaller diameter and lower strength grade screws can be used. This smaller size of the screw connection makes it easier to handle during disassembly / installation and maintenance, and eliminates the need for special tools.

[0021] According to one embodiment, the container sleeve has at least two container segments. In this case, the container segments are releasably connected to each other at their axial ends facing each other, for example, by threaded flanges, clamps, or other connecting devices. Thermal expansion of the entire container sleeve is made possible by transmitting linear expansion between the container segments and targeted compensation at the axial ends of the entire grinding container formed by multiple parts, while avoiding uncontrolled or critical stresses. The structure of the container sleeve, composed of several container segments, advantageously allows for modular and scalable length designs. In this case, the targeted transmission of linear expansion allows for simplified design of the segment joints, thus eliminating the need for complex expansion joints or expensive compensation mechanisms between the individual container segments.

[0022] According to one embodiment, the grinding chamber boundary is designed as a grinding container cover. This cover design allows for easy opening of the grinding chamber, facilitating inspection, maintenance, and cleaning. Alternatively, grinding chamber boundaries with corresponding compensation devices can be provided at both ends of the grinding container.

[0023] According to an improved version of the stirred mill, the stirred mill is designed as a high-temperature range mill. Advantageously, mills with a grinding vessel design according to the invention are particularly suitable for applications with high operating temperatures exceeding 100°C, and in some applications up to 250°C or higher. Due to targeted linear expansion compensation in the inner sheath, critical mechanical stresses are reduced by thermal expansion within the operating temperature range defined for the respective mill, thereby preventing cracking or deformation and maintaining the structural integrity of the grinding vessel.

[0024] According to an improved design of the stirred mill, a temperature control system is integrated into the container jacket. This temperature control system enables precise control of the operating temperature, thereby maintaining a stable grinding process and avoiding unwanted material changes. Through uniform temperature control, the temperature difference between the inner and outer jackets is minimized. Furthermore, the container jacket according to the invention reduces or eliminates mechanical stress.

[0025] The above-described embodiments and improvements can be freely combined with each other, as long as they are meaningful. Other possible embodiments, improvements, and implementations of the present invention include combinations of features of the invention not explicitly mentioned in the preceding or hereinafter described with reference to the embodiments. In particular, those skilled in the art will also add individual aspects as improvements or supplements to the corresponding basic forms of the invention. Attached Figure Description

[0026] The present invention will now be explained in more detail with reference to the accompanying drawings and embodiments. As can be seen from the drawings: Figure 1 This is a schematic diagram of a portion of a grinding container according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the grinding container section of the grinding container according to an embodiment of the present invention; and Figure 3 This is a cross-sectional view of a stirred mill according to an embodiment of the present invention.

[0027] In the accompanying drawings, unless otherwise specified, the same, functional, and operational elements, features, and parts have the same reference numerals in every case. Detailed Implementation

[0028] Although specific embodiments and improvements have been shown and described herein, those skilled in the art will preferably substitute numerous alternative and / or similar embodiments for the specific examples shown and described without departing from the scope of the invention. This application is generally intended to cover all modifications or variations of the particular embodiments described herein.

[0029] The accompanying drawings are intended to provide a further understanding of embodiments of the invention and, in conjunction with the description, to explain the principles and concepts of the invention. Other embodiments and many of the advantages mentioned will become apparent from the drawings. The drawings are to be understood as schematic only, and the elements in the drawings are not necessarily shown to scale relative to each other. Terms indicating direction, such as “up,” “down,” “left,” “right,” “above,” “below,” “horizontal,” “vertical,” “front,” “back,” etc., are for illustrative purposes only and are not intended to limit the generality to the specific design shown in the figures.

[0030] The dashed lines in the attached diagram indicate that the connections between components do not necessarily require physical contact; they can also be wirelessly coupled to each other.

[0031] Figure 1A schematic diagram of a portion of the grinding container 10 of a stirred mill 11 according to an embodiment of the present invention is shown. The portion shown illustrates, for example, basic components used in a high-temperature stirred mill to compensate for linear expansion caused by temperature. The grinding container 10 has a grinding chamber boundary 12 designed, for example, in the form of a container lid, which axially encloses the grinding chamber 13. The grinding chamber boundary 12 is connected to a container sleeve 34, which includes an outer sleeve 14 and an inner sleeve 15, and defines the grinding container 10 outwardly around the grinding chamber 13. The inner sleeve 15 is concentrically arranged inside the outer sleeve 14 and is in direct contact with the grinding material, thus being exposed to thermal loads. The inner sleeve 15 may also have a wear-resistant coating. A flange-like connecting element 26, designed to concentrically position the inner sleeve 15 and the outer sleeve 14, is screwed onto a grinding container flange 21. The grinding chamber boundary 12 has a surrounding groove-shaped recess 16, into which the first axial end 17a of the inner sleeve 15 can sink in the axial direction A in the event of linear expansion caused by temperature. The groove-shaped recess 16 allows for compensation of the linear expansion of the inner sleeve 15 within a defined operating temperature range. When the grinding process is carried out in a high-temperature grinding mill at a temperature above 100°C, the inner sleeve 15 expands more than the relatively cool outer sleeve 14 due to process heat. The groove-shaped recess 16 allows the first axial end 17a to extend into the recess 16, reaching the bottom 18 of the recess 16, without acting on the grinding chamber boundary 12, thereby generating critical stress in the connection between the container sleeve 34 and the grinding chamber boundary 12. If further linear expansion occurs due to increased container temperature, particularly exceeding the defined operating temperature range, the resulting stress is absorbed by the connection between the grinding chamber boundary 12 and the grinding container 10 or container sleeve 34—namely, by the grinding container flange 21 and the threaded connection 22 inserted therein. However, since the reduced stress must be absorbed under these conditions, the size of the grinding container flange 21 can be smaller. Furthermore, the size and number of threaded connections 22 can also be reduced. Therefore, the grinding chamber boundary 12 (in this embodiment, the container cover placed on the grinding container 10) provides an expansion space through which the inner sheath 15 can expand linearly to a certain extent without contacting the grinding chamber boundary 12 and generating mechanical stress.

[0032] The second axial end 19a of the inner sheath 15 ( Figure 1(Not shown) is fixed in the grinding container 10. As a result, the entire linear expansion occurs only axially in the direction of the groove 16 and is compensated for by a certain amount of expansion at the groove 16. The sealing element 20 inserted into the groove 16—before and during the linear expansion—ensures a reliable seal between the grinding chamber boundary 12 and the first axial end 17a of the inner sleeve 15. The sealing element 20 prevents grinding material or process media from penetrating into the groove 16 while protecting the contact surfaces from wear and contamination. The sealing element 20 is elastic, for example designed as a sealing ring or sealing profile, and can be compressed by the first axial end 17a of the inner sleeve 15 during its linear expansion, wherein the sealing element 20 can move into the enlarged portion 32 of the groove 16 during the linear expansion. Once the first axial end 17a of the inner sleeve reaches the bottom 18 of the groove, the sealing element 20 is fully pressed into the enlarged portion and is therefore not squeezed by the inner sleeve 15 and irreversibly damaged. The enlarged portion 32 serves not only as clearance space (for the sealing element 20 acted upon by the inner sleeve 12), but also as a means of fixing the position of the sealing element 20 and preventing it from falling off. Before and during the linear expansion of the inner sleeve 15, until reaching the bottom 18, the groove-shaped recess 16 is sealed relative to the grinding chamber 13 by the sealing element 20. The grinding container flange 21 is used to stably secure the components, via which the container sleeve 34 is fixed to the grinding chamber boundary 12. Due to the design according to the invention for accommodating the linear expansion of the inner sleeve 15, the mechanical stress occurring in the grinding container flange 21 is reduced, allowing the dimensions of the threaded connection 22 and the grinding container flange 21 itself to be smaller than those of a conventional stirred mill 11 without expansion compensation. Furthermore, the number of screw connections 22 on the circumference of the grinding container flange 21 can be reduced.

[0033] Figure 2 A cross-sectional view of the grinding container section 23 of the grinding container 10 according to an embodiment of the present invention is shown. The embodiment is feasible in which the grinding container 10 is formed solely by the grinding container section 23 designed as shown herein. Figure 2The structure of the grinding container 10 is partially shown, particularly the arrangement of the inner sleeve 15 within the outer sleeve 14, and the possibility of unilateral axial linear expansion of the inner sleeve 15 or its compensation. The inner sleeve 15 is concentrically arranged within the outer sleeve 14 and extends along the entire axial length L of the grinding container 10. The inner sleeve 15 is fixed to the second axial end 19a, while the opposing first axial end 17a can be recessed into the surrounding groove-shaped recess 16 of the grinding chamber boundary 12. This enables directional compensation of the axial linear expansion of the inner sleeve 15. The container sleeve 34 is screwed onto the grinding chamber boundary 12 via the grinding container flange 21. A stirring shaft 24, which is rotatably supported within the grinding container 10, is provided with a plurality of stirring elements 25. By rotating the stirring shaft 24, the grinding media (not shown) introduced into the grinding container 10 moves within the grinding chamber 13, and fine or ultra-fine grinding of the grinding material is performed by the applied impact force, shear force, and friction force. The outer sheath 14 and the inner sheath 15 are arranged at a certain distance. In an embodiment, a cooling system 36 is provided in the resulting gap 35, wherein a cooling medium pumped through two sleeves 37 circulates around the container sheath 34 in the gap 35 and carries away the generated process heat.

[0034] Figure 3 A cross-sectional view of a stirred mill 11 according to an embodiment of the present invention is shown. Figure 3 The modular structure of the grinding container 10 is shown, which is formed by two connected grinding container sections 23. Each grinding container section 23 has its own pre-joined... Figure 2 The structure described. Combined Figure 1 The described design of the grinding container restraint 12 (for compensating for the linear expansion of the axial ends 17a, 17b of the corresponding grinding container sections 23 in the groove-shaped recess 16) is respectively provided on both ends 27, 29 of the grinding container 10. The axial ends 19a, 19b located at the center of the grinding container 10 are connected to each other via radially protruding connecting flanges 33 and fixed within the grinding container 10. In the stirred mill 11, a stirring shaft 24 equipped with a plurality of stirring elements 25 extends along the entire axial length L of the grinding container 10. The stirring elements 25 are arranged such that, by means of grinding media (not shown) located in the grinding chamber 13, the stirring elements 25 pulverize the grinding material in the grinding container 10 through rotation of the stirring shaft 24. Figure 3 An inlet shell 28 is located at the right end 27 of the stirred mill 11, through which the grinding material is introduced into the grinding container 10. The outlet shell 30 is located at... Figure 3 At the opposite left end 29, the ground product exits the grinding container 10 through the outlet housing 30. The stirring shaft 24 is supported by at least one additional bearing and is stably guided within the grinding container 10. Figure 3The embodiment of the grinding vessel 10 shown allows for a scalable design of the stirred mill 11 by adding other grinding vessel sections 23, while compensating for the temperature-dependent linear expansion of the entire inner sheath 15 within each grinding vessel section 23. Figure 3 In an arrangement of two or more grinding container sections 23 (not shown), expansion compensation in other grinding container sections 23 can be achieved, for example, by providing groove-shaped recesses 16 in the connecting flanges of other grinding container sections 23.

[0035] In the foregoing detailed description, various features have been summarized in one or more examples to enhance the rigor of the representation. However, it should be clear that the above description is merely illustrative and not restrictive. It is intended to cover all alternatives, modifications, and equivalents of the various features and embodiments. Given the foregoing description, many other examples will be readily and directly understood by those skilled in the art based on their expertise.

[0036] The embodiments were chosen and described in order to best represent the principles upon which the invention is based and its potential applications in practice. Therefore, those skilled in the art can best modify and use the invention and its various embodiments with respect to their intended use. In the claims and description, the terms “comprising” and “having” are used as neutral linguistic terms corresponding to the term “including”. Furthermore, the use of the term “a” is not intended to fundamentally exclude the plurality of features and components described in this manner.

[0037] List of reference numerals

[0038] 10 Grinding container

[0039] 11. Stirred Mill

[0040] 12 Grinding chamber boundary

[0041] 13 Grinding Chamber

[0042] 14 Outer Sheath

[0043] 15 Inner Sheath

[0044] 16. Depression

[0045] 17a, 17b First Axial End

[0046] 18. Bottom of the tank

[0047] 19a, 19b Second Axial End

[0048] 20 Sealing elements

[0049] 21 Grinding container flange

[0050] 22 Screw connection device

[0051] 23 Grinding container section

[0052] 24 Stirring Shaft

[0053] 25. Stirring element

[0054] 26 Connecting elements

[0055] 27 ends

[0056] 28 Inlet shell

[0057] 29 ends

[0058] 30. Outlet shell

[0059] 31 bearing

[0060] 32. Expanded section

[0061] 33 Connecting flange

[0062] 34 Container sheath

[0063] 35 gap

[0064] 36 Cooling System

[0065] 37 casing

[0066] Axial direction

[0067] L axial length

Claims

1. A grinding container (10) for a stirred mill (11), the grinding container (10) having a grinding chamber boundary portion (12) and a cylindrical container sleeve (34), the container sleeve (34) having an axially extending portion adjacent to the grinding chamber boundary portion (12), the container sleeve (34) having an outer sleeve (14) and an inner sleeve (15) arranged concentrically with the outer sleeve (14), wherein, The grinding chamber boundary (12) has a surrounding groove-shaped recess (16) in the region of the inner sheath (15), and in the event of axial linear expansion caused by temperature, the first axial end (17a, 17b) of the inner sheath (15) can sink into the groove-shaped recess (16).

2. The grinding container (10) according to claim 1, wherein, Within the operating temperature range of the stirred mill (11), the axial depth of the groove-shaped recess (16) is greater than the axial linear expansion of the inner sheath (15).

3. The grinding container (10) according to claim 1 or 2, wherein, The radial width of the groove-shaped recess (16) is greater than the wall thickness of the inner sheath (15).

4. The grinding container (10) according to any one of the preceding claims, wherein, A sealing element (20) is provided in the groove-shaped recess (16), particularly a compressible sealing element (20).

5. The grinding container (10) according to claim 4, wherein, The groove-shaped recess (16) has an enlarged surrounding portion (32) for receiving the sealing element (20).

6. The grinding container (10) according to claim 4 or 5, wherein, The sealing element (20) is designed as a sealing ring or sealing profile having a shape substantially corresponding to the groove of the recess (16).

7. The grinding container (10) according to any one of the preceding claims, wherein, The second axial end (19a, 19b) of the inner sheath (15), which is opposite to the first axial end, is fixed in the grinding container (10).

8. The grinding container (10) according to any one of the preceding claims, wherein, The inner sheath (15) and the outer sheath (14) are arranged radially spaced apart.

9. The grinding container (10) according to any one of the preceding claims, wherein, A cooling system (36) is provided between the outer sheath (14) and the inner sheath (15).

10. The grinding container (10) according to claim 9, wherein, The cooling system has coolant lines surrounding the inner sheath (15), particularly spirally extended coolant lines.

11. The grinding container (10) according to any one of the preceding claims, wherein, The container sleeve (34) can be secured to the grinding chamber boundary (12) via a flange connection device (21), and in particular, can be screwed onto the grinding chamber boundary (12).

12. The grinding container (10) according to any one of the preceding claims, wherein, The container sheath (34) is formed by at least two container segments (23).

13. The grinding container (10) according to any one of the preceding claims, wherein, The boundary portion (12) of the grinding chamber is designed as a grinding container cover.

14. A stirred mill (11) comprising a grinding container (10) according to any one of claims 1 to 13.

15. The stirred mill (11) according to claim 14, wherein, The stirred mill (11) is designed as a high-temperature range mill.

16. The stirred mill (11) according to claim 14 or 15, wherein, A temperature control system is integrated into the container jacket (34).

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