SU1055538A1 - Hulling and polishing machine - Google Patents

Abstract

1. HANDY GRINDING NZSHINA, containing body, loading and inlet connections, sieve cylinder and vertical shaft mounted inside it with abrasive circles, characterized in that, in order to increase productivity by more uniform distribution of grain in the working area, the shaft above the abrasive An additional horizontal disk with vertical blades, bent at a right angle in the direction of rotation of the shaft, is mounted in circles, 1 are made so that their height increases from a disk is rigidly fixed around the disk to the periphery of the disk; the ring is mounted with the formation of a gap between the NT-W and the sieve cylinder, while the height of the ring decreases successively in the direction of rotation of the shaft, starting from one wall of the loading SP nozzle to its opposite wall, and the maximum height of the ring is less than the height of the blades of the disk. 2. Papa according to claim 1, in accordance with claim that the inner surface of the ring is roughened. ate ate ate: o X)

Description

The invention relates to the technological equipment of flour mills, large and compound feed mills. A known hulling machine comprising a cylindrical body, a rotor with whips, a device for loading and unloading, and a device for restricting the movement of grain in the body of PJ. However, in such a device, the grain bout does not reach 1-2% and the degree of purification is low. Closest to the invention to the technical essence is a shelling-grinding machine, containing a body, loading and sliding nozzles, a screen saw and a vertical shaft installed inside it with abrasive circles 2J. However, in a known machine, the receiving nozzle is located on the side, therefore the grain from the nozzle goes to top abrasive wheel on one side only. The incoming grain cannot immediately be evenly distributed over the entire annular cross section between the periphery of the upper abrasive disc and the sieve cylinder, but distributed over the abrasive circles from top to bottom along a helical line, successively increasing the filling of the indicated annular cross sections of the lower abrasive circles. Thus, the annular sections are fully loaded with the workable, only at the lower circles. For the upper circles, the abrasive working surface on a significant part of the circumference of the annular sections does not participate in the processing of the grain due to its uneven feeding along the entire periphery of the upper abrasive wheel, 1 (invented - an increase in the productivity of the peeling grinder by a more uniform distribution of grain in the working area. The goal is achieved by the fact that in a grinding sander containing a The starting, loading and discharge connections, the sieve cylinder and the vertical Hbtfi shaft installed inside it with abrasive circles, an additional horizontal disk with vertical vanes mounted in the upper part bent at a right angle in the direction of rotation of the shaft that their width increases from the center to the periphery of the disk, around the disk on the body there is a rigidly fixed split ring mounted to form a gap between it and the cylinder, with the height of the ring consistently decreases in the direction of rotation of the shaft, starting from one wall of the loading tube to its opposite wall, and the maximum ring height is less than the height of the blade blades. In addition, the inner surface of the ring is roughened. FIG. J shows the proposed, sectional machine, general view; in Fig.2 a section aa in Fig, I; FIG. 3 is a section B — H in FIG. 2. The scrubber grinder contains a housing 1 inside which a sieve cylinder 2 is installed, the diameter of which is smaller than the internal diameter of the housing 1, therefore an annular chamber 3 is formed between the housing 1 and the sieve cylinder 2. In the middle of the housing 1 there is a vertical shaft 4 on which abrasive wheels are fixed - 5. For feeding the grain to the machine serves the receiving pipe 6. For unloading the processed grain serves the discharge pipe 7, The shaft 4 is driven through a V-belt transmission from the electric motor 8. On the shaft 4, on top is abrasive x 5 circles, fixed disc 9 with the blades 10, the top of which there are bent at right angles portions 1, the width of which increases towards the periphery of the disc 9. Relatively blade portions 10 1I .napravleny toward the rotational shaft. The periphery of the disk 9 is fitted with a ring 12, which is connected to the housing 1 by jumpers 13. There is a gap 14 between the ring 12 and the sieve cylinder 2, which is necessary for the grain to go down to the lower circles 5, the height of the ring 12 decreases successively in the direction of rotation of the shaft 4 , while the maximum height of the ring is less than the height of the blades of the disk 9, the machine works in a way. The motor 8, via a V-belt transmission, informs the rotation of the shaft 4, the abrasive wheels 5 and the disk 9. Most of the grain from the nozzle 6 enters the disk 9, the grain jia disk 9 is positioned along the blades in the form of a truncated triangle due to the difference in the blades 10 of the bent sections 11, thanks to which, along the blades, is placed a significantly larger amount of grain than in the absence of sections 1. An increase in the width of sections 11 to the periphery of the disk allows a significant amount of grain to be located at the periphery of the disk, while rotating the grain of the stack t from the disk 9 on top of the ring 12. Part incoming grain width nozzle gap 6 via provalivaets down. On the disk 9, the grain moves along the blades 10 to the periphery under the action of centrifugal force and simultaneously rotates together with the disk 9. Ring 12. The ring 12 prevents the grain from moving from disk 9. At the same time, the grain located on the periphery of the blades 10 is exposed to the rough surface of the ring 12 Only that part of the grain that is above the ring 12 can leave the disc 9. Since the height of the ring 12 successively decreases to zero at the nozzle 6 the level of the plane of the disc 9), the grain from the disc 9 evenly descends throughout the region NOSTA, flowing over the ring 12 enters the annular gap 14 and further into the gap between the peripheral surface of the upper abrasive wheel 5 and the sieve cylinder 2 uniformly fills the annular gap. The grain located around the entire circumference of the annular gap 14, moves by gravity downward and in the direction of rotation of the circle 5, being exposed to an abrasive surface at the beginning of the upper circle 5, and as it moves down the processing by the downstream circles 5. The treated grain is removed through the exhaust pipe logs 7. The shells and light impurities are removed through the annular chamber 3. By virtue of the design of the scraper-shpffovalnoy machine, in which a disk is mounted on the shaft, on top of the abrasive wheels. The blades of the IL and on the periphery of the disk a ring rigidly attached to the body is installed, the height of which gradually decreases in the direction of the shaft rotation, and a uniform distribution of grain around the circumference of the upper abrasive wheel is achieved. Post The grain that drank on the rim disk cannot be quickly dropped from it by centrifugal force, since this is prevented by a ring fixed behind the periphery of the disk and rigidly connected to the body. Only that part of the grain, which is located on the periphery of the blades above the ring, is reset from the disk, and since the height of the coltta is successively lowered to zero (the level of the disk plane), the grain from the disk is evenly dropped — all over the upper abrasive circle, flowing over the ring 12. A uniform grain intake over the entire circumference above the upper abrasive wheel reduces the energy intensity of the process and increases the productivity of the machine, since abrasive processing of grain in circles is performed throughout the region. Nost. In addition, the peeling process (removal of the shells) begins from the moment the grain hits the blade disc, which is due to the centrifugal one. The force slides along the inner surface of the ring, which has a rough surface and is an additional working body. Thus, the installation of a blade disc and rings with variable height allows, by increasing the area of contact of the grain mass with the working bodies, to increase the intensity of the shelling process.

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Claims (2)

1 / HUSELING AND GRINDING MACHINE, comprising a housing, loading and exhaust nozzles, a sieve cylinder and a cylinder installed inside it • a vertical shaft with abrasive wheels, characterized in that, in order to increase productivity by more even distribution of grain in the working area, on the shaft above with abrasive wheels an additional horizontal disk with vertical blades is installed, I have. in the upper part, sections that are bent at right angles to the rotation direction of the shaft are made so that their width increases from the center to the periphery of the disk / around the disk, a split ring is mounted rigidly mounted to form a gap between them and the sieve cylinder, while the height rings sequentially decreases in the direction of rotation of the shaft, starting from one wall of the loading pipe to its opposite wall, and the maximum height of the ring is less than the height of the disk blades. 2. The machine according to claim 1, which is thin with the fact that the inner surface of the ring is roughened. >