RU52743U1 - DISPERSION SELF-BALANCING - Google Patents

Abstract

The utility model relates to equipment for sorting grain grinding products and can be used in the grain processing industry. In a self-balancing sifter, containing an oscillating multi-section sieve body with inlet devices for loading sections and working bodies mounted on guides, each of which is made in the form of a sieve frame divided into cells with a tray and cleaners located on it, the side walls of the sections forming bypass channels, connecting working bodies, bottom and exhaust pipes, wear-resistant release coating is applied along the inner contour of the mesh frame cells, and the cleaner is made of cotton a belt with a metal spherical support mounted below. The technical result from the use of the utility model is to increase the reliability of cleaning sieves and simplify the design of sieving.

Description

The utility model relates to equipment for sorting grain grinding products and can be used in the grain processing industry.

Known mill sieving with multifractional division of grinding products, protected by RF Patent No. 2160170, class. 07 V 1/38, publ. 12/12/10.

In a known sieving comprising an oscillating multi-section sieve body with outlet devices for entering grinding products and fractions, sieve frames with a cleaner, outlet windows for passing through fractions and a tray, the sieve frame is made in the form of a metal cylinder fixed in the middle of the outer part of the sieve frame, inlet-outlet windows are made on the side walls of the metal cylinder, and a round sieve is installed in its upper part, vertical channels are formed in the rectangular outer part of the sieve frame iema and passing fractions sieve frames are mounted on each other and rigidly attached clamping member, forming a column in which the tray formed fractions collection and transport channels grinding.

The disadvantage of sieving is the small sieving surface of the sieve frames with large sieving dimensions.

Known sifting for sorting bulk materials, protected by A.S. USSR No. 1286301, cl. 07 V 1/38, publ. 1987.01.30.

The sieving contains a multi-section sieve housing with junction boxes and guides, a set of working bodies, each of which is made in the form of a sieve frame with a pallet, side walls of sections forming over-screen channels, bypass channels connecting the working bodies, drive, inlet and outlet pipes and side trays . Each sieve frame is equipped with a liner installed in it, made in the form of a box with a perforated bottom and solid walls corresponding to the inner contour of the sieve frame, and the side walls of the sections are installed between the working bodies and have a cross-section [-shaped, while some of them have slots in the vertical wall of the profile and connected with the side trays, and the bypass channels are made in the form of blocks of trays installed with the possibility of removal.

The disadvantage is the lack of reliability of the sieving design due to its increased mass.

Closest to the claimed technical essence and the achieved result, selected as a prototype, is the sieving, protected by RF patent №2019312, cl. 07 V 1/40, publ. 1994.09.15.

Known sieving for sorting bulk products contains an oscillating multi-section sieve body with inlet devices for loading sections and working bodies mounted on guides, each of which is made in the form of a sieve frame with a tray and cleaners located on it, the side walls of the sections forming bypass channels connecting working bodies, bottom with stationary partitions and exhaust pipes. In each working element, the sieve frame is made with windows in the side bars for the release of the passage fraction, while the sump is made in the form of a flat sheet with stops at the ends to fix the sieve frame, the cleaner has a concave shape and is made with a support in contact with the sump, and its lower the edge is located above the edge of the outlet windows in the frame, while the sieving bottom is made with additional removable partitions for the formation of finished products.

The disadvantages of the known sieving are insufficient reliability due to the possibility of jamming of the cleaner between the tray and the sieve and the complexity of the design

The problem solved by the proposed solution is to improve the sieving of self-balancing for sorting bulk products.

The technical result from the use of the utility model is to increase the reliability of cleaning sieves and simplify the design of sieving.

This result is achieved by the fact that in a self-balancing sifter containing an oscillating multi-section sieve body with inlet devices for loading sections and working bodies mounted on rails, each of which is made in the form of a sieve frame divided into cells with a tray and cleaners located on it, the side walls sections forming the bypass channels connecting the working bodies, the bottom and exhaust pipes, wear-resistant release coating is applied along the inner contour of the mesh frame cells digging, and the cleaner is made of a cotton belt with a metal spherical support mounted below.

Figure 1 shows the sieving General view, figure 2 - working bodies, section ;. figure 3 - sieve frame, in section; figure 4 - sieve frame, top view; figure 5 - cleaner, in section; figure 6 - cleaner, view along arrow A.

The self-balancing sieve contains an oscillating multi-section sieve body 1, suspended on flexible suspensions 2 to the ceiling frame 3, with inlet devices 4 for loading sections and working bodies mounted on guides 5 (Fig. 1). Each working body is made in the form of a sieve frame 6 with a tray 7 and cleaners 9 located on the grid 8. On top of the sieve frame 6, a sieve 10 is fixed (Fig. 2). In each working body, the sieve frame 6 is divided by bars 11 into cells, while windows 12 (Fig. 3) are made in the side bars to release a passage fraction. On the inner contour of the cells applied wear-resistant release coating 13 (figure 4). For tightness, a nap cloth is glued to the sieve frame 14. The walls of the sections form end bypass channels 15 connecting the working bodies, the bottom 16 and the outlet pipes 17. On the sides of the sections there are lateral bypass channels 18 for the passage products. A balancing mechanism 19 is installed inside the housing 1. The cleaner 9 (FIGS. 5, 6) consists of a cotton belt 20, from the bottom of which a metal spherical support 21 is installed.

Sieving works as follows.

The sieve housing 1 performs on the suspension 2 circular translational oscillations in the horizontal plane. The initial product enters through the inlet devices 4 in several parallel streams to the upper sieve frames 6. Next, the product, passing through the sieves 10 of the working bodies, is sieved and separated into a gathering and passage fractions. The by-products are sent to the end bypass channels 15 to the underlying working bodies and are removed from the sifting through the outlet pipes 17 installed in the bottom 16, and in the sieving doors. The passage products through the pallet 7, the windows 12 are discharged into the side bypass channels 18. In accordance with the technological scheme, the passage products are directed by the side bypass channels 18 to the underlying working bodies or are removed from the machine through the outlet pipes 17. The balancing mechanism 19 rotates the sifter, including working bodies. The cleaner 9 mounted on the grid is in contact with the sieve 10 and cleans it from clogging with the product. Due to the reduced size of the support, the cleaner does not jam during movement, as it does not tip over. Wear-resistant release coating 13 protects the inner surfaces of the cells from wear.

Pile fabric 14 is necessary for the tightness of the sieve frame 6. A metal spherical support 21 oscillates the cleaner 9 to increase the cleaning effect.

The screening body 1 is made of aluminum and metal profiles, and the suspension 2 is made of a metal rope. The inlet devices 4, the pallet 7, the bypass channels 15, the exhaust pipes 17 are made of sheet steel, the guides 5 are made of aluminum. The sieve frames used are made of wooden bars, the balancing mechanism 19 of cast iron and metal steel. Wear-resistant release coating 13 is used according to TU 5141-001-17823007-99, pile fabric 14, for example, according to article 3008.

The cleaner 9 is made of a special cotton belt, for example, according to TU 17 of the RSFSR R 60-10141-81, a metal spherical support 21 - according to OST 17-176-88 of coated steel. Sieve 10 is made of synthetic yarns according to GOST 4403-91.

Thus, in the proposed screening, self-balancing compared to the prototype, the reliability of cleaning the sieves due to the cleaner increases, the design is simplified and the metal consumption is reduced due to the exclusion of liners. In addition, the service life of the sieve frames is increased.

Claims (1)

Sieving is a self-balancing, containing oscillating multi-section sieve body with inlet devices for loading sections and working bodies mounted on guides, each of which is made in the form of a sieve frame divided into cells with a tray and cleaners located on it, the side walls of the sections forming bypass channels connecting working bodies, bottom and exhaust pipes, characterized in that a wear-resistant release coating is applied along the inner contour of the sieve frame cells, and a cleaner It executes from cotton belt installed below the metal spherical bearing.