SU1311786A1 - Sieve frame for screening with circular translational movement - Google Patents

Abstract

The invention is intended for sorting grain milling products in the grain processing industry and in agricultural production mills. The purpose of the invention is to increase the productivity of the sieve sieve frame. It includes a sieve frame inserted into the floor, the skeleton, made in the form of a trapezoidal gutter turned small bottom up - to the sieve (C) 6. The bottom 10 is formed from a horizontal plane 11, adjacent side surfaces made in the form of inclined planes 12, 13, and horizontal steps 14 and 15, intended to widen the gap for the exit of the product through passage fraction from C 6. Under the action of circular translational oscillations and a flowing head, the initial mixture moves in C 6. The large outflow fraction poured from C 6 through the flap and into the screen frame of the underlying screen frame. The fine passage fraction is sieved through C 6 onto plane 11, from which, under the action of circular translational oscillations and the action of rubber cleaners, is dropped onto inclined planes 12, 13, then dumped into horizontal steps and then dropped into vertical channels for further processing. 8 il. A-A SO s O) to Fig.Z

Description

The invention relates to the technique of sorting grain milling products, can be used in the grain processing industry and in the mills of agricultural production and is an improvement of the invention according to the author. St. No. 1125068.

The purpose of the invention is to increase the productivity of the sieve frame for sieving.

FIG. 1 and 2 depict a sieve frame for sifting with circular motion, general view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 - bearing frame sieve frame, view in plan; in fig. 5 is a section BB in FIG. four; in fig. 6 - sieve frame with frame, installed in the sifting cabinet; in fig. 7 - release unit of the passage fraction of the product from under the sieve of the sieve frame through the frame into the vertical channel of the sieving cabinet in the proposed frame; in fig. 8 - the same, in the famous sieve frame.

The circular sieve sieve frame contains a sieve frame 1 consisting of wooden bars 2-5 with a sieve 6 fixed to them from above. Both lateral longitudinal bars 3 have, on the edges of the sides, folds (ledges) 7 intended to be mounted on their frame is the sieve frame upstream in the cabinet. The sieve frame 1 is inserted into the supporting frame 8, which serves as a support for it and inertial cleaners 9, designed to clean the sieve 6 and remove the product through passage from the frame 8.

The frame 8 is made in the form of a trapezoidal cross section grooved from a single aluminum billet of a single sheet of aluminum, turned upside down to a sieve 6 with a small bottom. horizontal steps 14 and 15, intended to expand (with the same dimensions of the frame and the entire sieve frame) the gap to exit the passage fraction of the product from under the sieve 6.

Planes 12 and 13 and steps 14 and 15 are reinforced at the ends with vertical flanges 16 and 17, which have rectangular notches 18 and 19 designed to pass the sizing support guides when laying or sieving the sieve frame from the cabinet and thereby ensuring saving HEIGHT61 equal to the thickness of the guide. The frame 8 is made at the ends with flanges 20 and 21, perpendicular to the bottom 10 and intended for fixing the sieve frame 1 with a sieve 6 in the frame 8. The bottom 10 is connected by steps 14 and 15 and vertical walls 22 and 23 to the horizontal shelves 24 and 25 for mounting the frame 8 and the sieve frame 1 on the ledges of the sieve frame downstream in the sieve frame. Sitov frame

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The assembled unit 26 is located in the sifting cabinet 27, with the sieve frame 1 resting with its longitudinal side bars 3 on the rails 28 and 29 of the cabinet 27, and the frame 8 with the shelves 24 and 25 resting on the folds 30 and 31 of the sieve frame 32 below the sieve frame 33.

The horizontal steps 14 and 15 of the frame 8 are positioned against the slots 34 and 35 formed in the walls 36 and 37 of the cabinet 27, intended to release the passage fraction into the longitudinal vertical channels 38 and 39. Similar vertical channels for the tailing fraction are provided on the side of the flanges 20 and 21 frames 8.

In the well-known sieve frame (Fig. 8), the gap size for the bore fraction Ssin, where S is the width of the sheath 40 of the sieve frame, and is the angle of inclination of the side plane 41 of the frame to the horizontal.

Thus, the value of b is limited

off

on the one hand the size of the gap where

C — width of rubber cleaner 9 dug into hole 40 at, s

The other side b is limited by the angle a of the side plane 41 of the frame, with an increase in which the height of the frame increases, which reduces the total number of screen frames in the screening or loses part of the overhead space, which reduces the performance of the device.

The increase in the throughput gap b (Fig. 7) is accomplished by discharging 1 side of the side surfaces of the stepped frame. In this case, the planes 12 and 13 can be steeply inclined at a constant height of the frame, which speeds up and facilitates the unloading of the passage fractions and, accordingly, increases the productivity of the device.

Sieve frame for sowing with circular motion works as follows.

The initial mixture to be screened is fed to a sieve 6 from the side, for example, flanging 20. Under the action of circular translational oscillations and a loose head, the initial mixture moves along the sieve 6 in the direction of flanging 21. When moving, the mixture is sorted to a large blend of sieve 6 through the flanging 2 into the vertical channel of the sieve plate, adjacent to it, and is fed to the sieve frame 32 of the underlying sieve frame 33 for further sieving. The fine passage fraction of the initial mixture is sifted through a sieve 6 onto the plane 11 of the skeleton 8, from which, under the action of circular translational oscillations and the action of rubber cleaners 9, is dropped onto the inclined planes 12 and 13, then dumped onto the horizontal steps 14 and 15 and then dropped

through slots 34 and 35 into vertical channels 38 and 39 for further processing.

Claims (1)

Claims Sieve frame for sowing with circular motion along the ed. St. No. 1125068, characterized in that, in order to increase the productivity of the frame, the lateral surfaces of the supporting frame are stepped. "Y .-2 -3 -Ch -5 R one FIG. 21 FIG. 2 FIG. C BB 21 / 7 20 17 13 // / / FIG. five 26 9 6 27 12 eleven Ultrasound 1 Compiled by S. Shestakova Editor I. Gorna Tehred I. VeresKorrektor M. Sharoshi Order 1830/8 Circulation 539Subscription VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4