SU1645000A1 - Mill - Google Patents

Description

one

(21) 46 43902/33

(22) 04/25/89

(46) 04.30.91. 15ml, t 16

(71) Ivanovo Institute of Chemical Technology

(72) V.B. Lapshin, V.D. Trachtenberg, M.Yu. Kolobov, V.N. Blnkchev and Yu.I. Makarov

(53) 621.926.4 (088.8)

(56) USSR Author's Certificate R 867416, class, B 02 C 7/06, 1979.

USSR Author's Certificate P 854433, cl. B 02 C 7/06, 1979.

(54) MILL

(57) The invention relates to devices for grinding and displacing materials and can be used.

in the chemical, construction, food and other industries. The purpose of the invention is to increase the efficiency of the selective grinding of materials of different strengths and

improving the quality of their mix. The mill contains loading 1 and unloading 7 nozzles, housing 8, in which coaxial drive shafts 11 and 14 are equipped with disk working bodies 9 and 10, and various impact elements in the form of blades fixed on disks in concentric rows and rotated under. in the direction of rotation of the discs, two boot nozzles 2 and 3 mounted on the walls of the housing, flat impact elements arranged in concentric rows on the disks from the housing side, a cylindrical shell 17 mounted between the disks and the shell shell made with truncated pyramid openings and forming an annular channel with the shell of the case, impeller discs 4-6, connected to each other and fastened to loading pipes, one of which is connected to the drive shaft. 1 il.

i

ate

18

The invention relates to devices for grinding and mixing materials and can be used in the chemical, construction, food and other industries.

The purpose of the invention is to increase the efficiency of selective and ground materials of varying strength and to improve the quality of their mixing.

The drawing shows the proposed mill.

The mill contains boot nozzles, impeler disks 4-6; discharge pipe 7; the housing 8, in which the rotational towards one is located, to the other two coaxial disks 9 and 10. The disk 9 mounted on the hollow shaft 11 contains two to three rows of impact elements 12 from the disk 10 and one to two from the side of the housing Yes and shock elements 13. A disk Yu fixed on shaft 14 contains two to three rows of impact elements 15 on the side of disk 9 and two to three rows of impact elements 16 on the side of the body. Between disks 9 and 10 and case 8 are installed cylindrical shell 17 with holes in the shape of a truncated pyramid. The annular channel 18 is formed by the shell of the housing 8 and the cylindrical shell 17. On the walls of the housing 8 are mounted chippers 19.

The mill operates as follows.

If the speed of the drive shaft 14 is greater than the speed of the shaft 11, then the least durable material is fed through pipe 2 by the impeller disk 5 into the mill, where it is thrown onto the chambers 19 under the action of the impact elements 13, crushed and fed to the cylindrical shell 17 NIPU is stranded through pipe 3 by a disk impeller b, where under the action of impact elements 16 moving with greater speed as compared with impact elements 13, it is thrown onto the chippers 19, it is crushed and fed to the cylindrical shell T7. The most durable material is fed into the mill by a disk impeller 4 through the nozzle 1 located in the tubular shaft 11, and is crushed by the action of the engine in opposite directions of impact elements 12 and 15.

The p-shock elements do not merge into a single stream, but are crushed into individual portions with a number equal to the number of holes in the cylindrical shell 17. In the turbulent zones formed by holes in the form of a truncated pyramid in the cylindrical shell 17, the air and crushed material flows different directions, the crushed materials are mixed and withdrawn into the annular channel 18, where the portions of the mixed materials are combined into a single stream and removed from the mill through the discharge pipe 7. The mixed material is unloading steps on the floor under the action of gravity and a very weak flow of air. In the annular channel 18, the centrifugal field is practically absent and no stratification of mixed materials is observed. The annular channel 18 is provided with a cross-sectional area of not less than the cross-sectional area of the charging nozzles 1-3. The impeller discs 4-6 are rigidly connected to one another, and the disc impeller b connects to the production shaft 14, which allows the amount of material fed to the grinding zone to be measured and the specified mix ratio to be varied according to the rotational speed of the latter. .

The use of the mill makes it possible to increase the efficiency of selective grinding of materials of different strengths and to improve the quality of their mixing. The mill allows to obtain fine materials with specified granulometric characteristics and to mix them in a given ratio. Combining the processes of grinding and mixing makes the mill compact and reduces its intensity.

Lormula invention

A mill containing a shell with a shell and a pair of disks mounted on coaxial natural horizontal shafts, flat impact elements fixed on the disks in concentric rows and deflected from the radial direction of rotation of the disks, a nozzle for feeding material into the interdisk space and a discharge nozzle, t s16450006

l and h it is so that, with the case of the hull and the foxes, the efficiency of the breeding system with openings in the pide

efficient grinding of materials of rachlich-truncated pyramndm and generatrix

Noah strength and improve the quality of the body loop ring to nll,

mixing them, it is equipped with installed discs and are made with additional

on the side walls of the casing with two-flat impact elements, connecting pipes for material supply on the casing side,

between the discs and the end walls

enclosures mounted between equiped with impellers.

Claims (1)

Lor m u l e A mill containing a casing with a shell and a pair of disks mounted on it on coaxial horizontal drive shafts, flat percussion elements fixed on the disks in concentric rows and deflected from the radial direction in the direction of rotation of the disks, a pipe for supplying material to the inter-disk space and unloading; branch pipe, from1645000 s It is necessary to ensure that, in order to increase the efficiency of selective grinding of materials of various strengths and improve the quality of their mixing, it is equipped with two nozzles mounted on the side walls of the casing for supplying material between the disks and the end walls of the casing mounted between both the seagull of the case and the disks with an additional shell with holes in the form of a truncated pyramid and forming an annular channel with the shell of the body, and the disks are made with additional flat percussion elements located with casing hand, wherein nozzles for supplying material formed with impellers.