SU441958A1 - Multichamber ball mill - Google Patents

Description

A different ball mill is known, comprising blended cajers forming a common body, the axes of which horizontally are located symmetrically around the axis of rotation of the mill, and the drive. However, fine mills have a large circumferential diameter, the space enclosed between chambers and segments within chambers is not used for grinding, which entails a large specific anergy consumption for driving these mills. The purpose of the invention is to improve the brush and reduce the drive power. This is achieved by the fact that each chamber is made, for example, in the form of a cylinder, with a concave cavity into which the convex part of the adjacent chamber enters. For the most compactness, the mill is made of four chambers; with an atom, its axis of rotation coincides with the general pattern of 1r chambers. On fyr. I depicts a multi-chamber ball melyitsa, a common Vvzh; in Fig 2 - a section along aa on figo1 | in fig. 3 - four-chamber mill incision. The mill casing is formed by measuring chambers I, symmetrically arranged around the axis of rotation 2 of the mill. Each chamber has service hatches, armored inside, equipped with a loading device, for example, in the form of a cochlea, and an unloading device (not shown in FIG. ;, flanges with partitions) Which, in turn, are connected with cylindrical rings 4 to the bottom 5 of the mill , equipped with intermediate hollow trunnions 6 "1 rotating the bearing in the bearings 7. The loading part of the mill has a throat 8c. The unloading box 9 is equipped with an aspirator TO and unloading II devices: intermediate trunnion 6 to the workers with the central drive A shaft 12 connected to the mill drive. The grinding chambers I are formed by grinding bodies 13 (FIG.). The cavities H of the chambers have a cross-sectional shape, for example, a segment for redistributing the grinding bodies 13. In these cavities 1 partly includes a B1-shaped part 13 adjacent chamber Fig. 3 shows the optimal variant of a mill mill consisting of four grinding chambers located around the common axis of rotation of the mill and entering with part of its cylindrical surfaces one into the other, representing a cross section of the segment and serving to redistribute Determination of grinding media and comminuted material. At the same time, the geometrical axis of the mill forms the SCH6Y of all four chambers. The source material, for example, clinker, through the loading neck 8 enters the loading part of the cylindrical ring 4, from where it is captured by the loading device of one of the grinding chambers I, for example, in the form of a cochlea and enters the chamber, where it is crushed by the action of moving grinding bodies. . In this case, the concave 58 of the chamber. I contribute to the redistribution of grinding bodies. After grinding, the finished material passes through the flanges with a septum. 3, the cylindrical ring, the bottom 5 of the mill and the hollow journal 6 into the unloading box 9, are aspirated by the device 10 and unloaded by the device II for further transportation to the warehouse. SUMMARY OF THE INVENTION I. A multi-chamber ball mill comprising grinding chambers forming a common body, horizontal axes of which are symmetrically arranged around the axis of rotation of the mill, and driven so as to improve assembly and reduce power drive, each chamber is made, for example, in the form of a cylinder with a concave cavity, which includes the convex part of the adjacent chamber, 2. A mill according to claim I, characterized in that, in order to obtain the greatest compactness effect, it is made four-chamber, at fl m its axis of rotation coincides with the common generator chambers.

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