RU2078623C1 - Device for separating grain grinding products - Google Patents

Abstract

FIELD: milling. SUBSTANCE: device has a load-carrying frame suspended by ropes to permit rocking. The sections with screen frames and pans are arranged in series one above the other. The pans are provided with passageways for supplying an initial product and passageways for discharging finished and intermediate products. The passageways for supplying an initial products and passageways for discharging intermediate products are made up as chutes that project outside of a section. The grinders are secured to the individual stand. Each of the grinders is interposed between the chute for discharging intermediate above-screen product of the top sections and the chute for supplying of the initial product of the bottom section. The passageways for discharging finished product are interconnected through respective vertical passages. A counterweight is secured symmetrically on the load-carrying frame from the side opposite to the section securing. EFFECT: improved design. 2 dwg

Description

 The invention relates to the processing industry, in particular to devices for sorting grinding products, mainly grain, and is intended for use in the milling industry in the production of mini-mills.

 A device for separating grain grinding products (sieving ZRM), containing a supporting frame, four sections with sieve frames and pallets having channels for entering the products of grinding and exit of the finished product, the drive of oscillatory movements (see the Handbook of flour milling, grinder, feed mill, Auth. G. M. Bardyshev et al., Kolos Publishing House, 1973 6P8.1 S 74 UDC 664.7 / 031 /, pp. 84.86, Fig. 75 /.

 The disadvantages of the known devices are the relative complexity of the technological scheme and cumbersome.

 A device is known for separating grain grinding products (sifting ZRSh-6), containing a supporting frame suspended on ropes, six sections with sieve frames and pallets having channels for entering the products of grinding and exit of finished intermediate products and off-balance oscillations (see the Handbook of flour milling, grinder , feed mill, author G.M. Bardyshev and other publisher Kolos, 1973 6P8.1 S 74 UDC 664.7 / 031 /, p. 84.86).

 This device is characterized by the disadvantages of the previous analogue.

 In terms of technical nature, the closest to the proposed device is a device for separating grain grinding products (sifting ZRSh4-4M), including a supporting frame suspended on ropes with the possibility of swinging, sections mounted on it with sieve frames and pallets having channels for the input of the initial product and channels for the output of finished and intermediate products, an unbalanced oscillator (see. "Equipment for the production of flour and cereals", Handbook, auth. AB Demsky et al. Moscow, VO agropromizdat, 1990 LBC 36.820-22 , UDC 664.7-075.31, 6P 8.13 0 224).

 However, this device, despite the complexity of the technological scheme, has insufficient functionality and requires the use of a large number of vehicles for transporting grinding products from the grinder to sifting, and from it to the container for flour and bran.

 The technical result is the expansion of functionality while reducing the footprint.

 This is achieved by the fact that in the device for separating grain grinding products, including a supporting frame suspended on ropes with the possibility of swinging, sections with sieve frames and pallets fixed thereon having channels for input of the initial product and channels for the exit of finished and intermediate products, an unbalanced oscillator , sections with sieve frames and pallets are fixed sequentially one above the other, channels for input of the initial product of each section and output channels for output of intermediate products are made in the form of a tray s, extending beyond the sections, while the device is equipped with choppers mounted on a separate rack, each of which is located between the tray for the exit of the intermediate oversize product of the upstream section and the tray for the entrance of the initial product of the downstream section, and the channels for the exit of each finished product are combined the corresponding vertical channels having exits in the lower part of the device, while on the supporting frame from the side opposite to the securing section, symmetrically counterweight secured.

 The essence of the invention lies in the fact that the location of the sections one above the other and the corresponding arrangement and connection of their channels made it possible to organize a design with a small footprint, and the presence of grinders between the sections provides the possibility of additional processing of grain without the use of additional vehicles.

 Comparison with the closest analogue made it possible to judge the compliance with the criterion of "novelty", and the absence of distinctive features in the analogues indicates the compliance with the criterion of "inventive step".

 Preliminary tests confirm the possibility of industrial use of the facility.

 Figure 1 presents a General view of the device; FIG. 2, section AA in FIG. one.

 The device contains a suspension frame 2 suspended on ropes 1, to which sections 3-6 and an unbalanced oscillator 7 with a pulley 8 are attached one above the other, an electric motor 9 with a pulley 10 and a counterweight 11. Sections 3-6 include a set of sieve frames 12 - 15 and pallets 16 and have channels 17 for input of the original product and channels 18 -20 for the exit of finished products.

 Channels 17 for the input of the initial product and channels 21 for the output of the intermediate products are made in the form of trays and extend beyond the enclosure sections 3-6. Channels 18 -20 for the exit of finished products are combined with the corresponding vertical channels 22 -24, each of which has an outlet at the bottom of the device.

 Between the channel 21 for the output of the intermediate product of the upstream section and the channel 17 for the input of the initial product of the downstream section, grain grinders 26 are installed on a separate rack 24.

 The device operates as follows.

 When the electric motor 9 is turned on, the rotation is transmitted through the pulleys 8, 10 and the unbalanced oscillator 7. The supporting frame 2 suspended on the ropes, together with the sections 3-6 and the counterweight 11 mounted on it, oscillate.

 The grain is fed to the inlet of the upper grinder 26, passing through which it is crushed and fed into the channel 17 to enter the initial product of the first section 3. Using a set of sieve frames 12, 13, 14 and pan 16, the crushed product is divided into four fractions: for the flour grade, large groats and small grains. Coarse grains through channel 21 enter the input of the second grinder 26, fine grains enter the third grinder 26, flour of the first grade into the vertical channel 22, flour of the 2nd grade into the vertical channel 23. After grinding coarse grains in the second grinder 26, the grinding product through channel 17 it enters the second section 4, which is also divided into four fractions: bran, flour of two varieties, small grains. Bran through the channel 19 falls into the vertical channel 23, flour of the 1st grade into the vertical channel 22, flour of the 2nd grade into the vertical channel 23, fine grains through channel 21 enter the input of the third grinder 26.

 After grinding the fine grains in the third grinder 26, the grinding product passes through the channel 17 into the third section 5, in which it is divided into three fractions: two types of flour, fine grains. Flour of the 1st grade through channel 18 enters the vertical channel 22, flour of the 2nd grade into the vertical channel 23, fine grains along the channel 21 to the inlet of the fourth grinder 26.

 After grinding small grains in the fourth grinder 26, the grinding product passes through the channel 17 into the fourth section 6, in which it is divided into three fractions: flour of two varieties, bran. Flour of the 1st grade through channel 18 falls into the vertical channel 22, flour of the 2nd grade into the vertical channel 23, bran into the vertical channel 24.

 Thus, as a result of design features, there is no need for vehicles for transporting both intermediate products of grain grinding and finished products, which greatly simplifies the design of the mill complex.

 As for an example of a specific implementation, in the conditions of a conventional machine shop, it is possible to manufacture four sections 3-6 of sieving a welded construction made of sheet steel with guides for standard sieve frames 12-15 and pallets 16, to equip the sections with removable covers and the necessary channels for the entry and exit of products grinding, fix the sections one above the other on the frame, make vertical pipelines with the necessary bends for connecting to the outlet channels of the sections.

 As grinders 26, you can use the simplest roller grinders of small height.

Claims (1)

 A device for separating grain grinding products, including a supporting frame suspended on ropes with a possibility of swinging, sections with sieve frames and pallets fixed to it, having channels for entering the initial product and channels for leaving finished and intermediate products, an unbalanced oscillator, characterized in that the sections with sieve frames and pallets sequentially fixed one above the other, channels for the input of the initial product of each section and channels for the output of the intermediate products are made in the form of trays, protruding outside the sections, while the device is equipped with choppers mounted on a separate rack, each of which is located between the tray for the exit, the intermediate oversize product above the section located and the tray for the input of the original product below the section, and the channels for the exit of each finished product are interconnected the corresponding vertical channels having outputs in the lower part of the device, while on the supporting frame from the side opposite to the securing sections, symmetrically fixed tivoves.

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