RU2205780C1 - Device for breaking bridges of loose material in hoppers - Google Patents

Abstract

FIELD: material handling facilities. SUBSTANCE: invention relates to storing loose materials and to devices aimed at preventing formation of hand-ups in process of material discharge from hoppers. Proposed device contains vertical rod with fitted-on bushings mounted for adjusting and fixing in position in height of rod. Flexible working members are made in form of upward curved links whose ends are hinge-connected on bushings and hopper housing. Pins are installed on convex side of flexible working members. Rod has drive imparting reciprocating motion to rod, and providing oscillating motion of flexible working members in vertical. Curvature of working members change in process of rod movement. With all members of device operating, loose material contained in hopper is freely discharged through discharge port outsides. EFFECT: improved reliability in operation. 2 dwg

Description

 The invention relates to the field of storage of bulk materials, and in particular to devices for preventing the formation of arches in the process of unloading materials from bunkers of stationary and mobile means.

 Known bunker device [1], containing mounted on a vertical shaft of the sleeve, the lower of which is rigidly fixed. There are horizontal brackets on the bushings. Vertical pins are fixed to the free ends of the brackets, while the length of the pins is greater than the distance between adjacent brackets.

 The disadvantage of this hopper device is the inability to control the location of the bushings along the height of the hopper.

 It is also known a device for collapsing the arches of bulk material in the hopper [2], containing a vertically located rod with sleeves fixed on it. The shaft breakers in the form of brackets are hinged to the bushings and suspended on springs connected to movable clips adjustable in height of the rod. The brackets are fixed with vertical pins. In the hopper, the rod is suspended on springs.

 The disadvantage of this device is the lack of effectiveness of collapse of poorly bulk materials.

 The closest technical solution to the invention is a device for the collapse of the arches of bulk material in the hoppers [3], containing installed on the axis of the hopper vertical rod. On the rod are placed collapsing elements, which are bushings with elastic working elements rigidly fixed to them. The bushings are fixed with easily removable fasteners at the required rod height, depending on the type of bulk material and the angle of inclination of the walls of the hopper. The bushings are installed in such a way that the working elements mounted on adjacent bushings are staggered. The bar is fixed in the upper and lower part of the hopper by means of springs.

 The disadvantage of this device is the lack of effectiveness of collapse and loosening of the material.

 The objective of the claimed technical solution is to increase the efficiency of the device for the collapse of the arches of bulk material in bunkers.

The specified technical result is achieved by the fact that in the device for collapsing the arches of bulk material in the hoppers containing a vertical rod, on which the bushings are mounted with the ability to adjust and fix their position along the height of the rod, and the elastic working elements are mounted on adjacent bushings and arranged in a checkerboard pattern,
the elastic working elements are made in the form of rods curved upward by the bulge, the ends of which are hinged to the bushings and the body of the hopper, pins are installed on the convex side of the rods, and the rod has a drive with the ability to reciprocate.

 The proposed technical solution is illustrated by drawings.

 In FIG. 1 shows the proposed device, a General view; figure 2 is a section aa in figure 1.

 A device for collapsing the arches of bulk material in the hoppers contains a vertical rod 1 on which the bushings are mounted 2. The bushings 2 are mounted with the ability to adjust and fix their position along the height of the rod 1. The elastic working elements 3, staggered on adjacent bushings, are made in the form curved bulge up rods. The ends of the elastic working elements 3 by hinges 4 are fixed to the bushings 2 and the housing of the hopper 5. On the convex side of the rods are mounted pins 6. The rod 1 has a drive with the ability to make a reciprocating motion.

 The device operates as follows.

 When you open the unloading window (not shown) of the hopper 5 and turn on the drive, the vertical rod 1 with the bushings 2 fixed on it will begin to reciprocate, and the elastic working elements 3 mounted staggered on adjacent bushings 2, turning in hinges 4, perform oscillatory motion vertically. When the vertical rod 1 is reciprocating, the distance between the hinges 4 on the sleeve 2 in the hopper body 5 changes. Since the elastic working elements 3 are staggered between the hinges 4 on the bushings 2 in the hopper body 5, then when the vertical rod is reciprocating 1 their curvature changes.

 The reciprocating movement of the vertical rod 1 with bushings 2 fixed thereon, a change in the curvature and oscillatory vertical movement of the elastic working elements 3, made in the form of rods curved upward by the bulge, and also pins 6 mounted on their convex side, acting on the monolith of bulk material and loosening it, bring down the vaults.

 And the arches formed in a loose body, as you know, in shape are a curve convex up. The implementation of the working elements also with a bulge up helps to prevent the formation of arches and their rapid destruction.

 Elastic working elements 3 with pins 6, making oscillating movements, act on bulk material, loosening it.

 The process of loosening and collapse of the arches of bulk material is carried out simultaneously throughout the entire volume occupied by the device in the hopper 5. As a result of the operation of the elements of the device, the bulk material located in the hopper is freely discharged through the discharge window to the outside.

 By changing the frequency and amplitude of the reciprocating movement of the rod 1, as well as the installation of the bushings 2 along the height of the rod 1, you can adjust the intensity of the device to collapse the arches of bulk material in the bunkers.

Sources of information taken into account
1. USSR author's certificate 1025597, cl. B 65 D 88/68 ,. 1983 year

 2. Patent of the Russian Federation 2127701, cl. B 65 D 88/68, 1998

 3. USSR copyright certificate 1747342, cl. B 65 D 88/64, 07/15/92. Bull. 26 is a prototype.

Claims (1)

 A device for collapsing arches of bulk material in hoppers, containing a vertical rod on which the bushings are mounted with the ability to adjust and fix their position along the height of the rod, and the elastic working elements are mounted on adjacent bushings, arranged in a checkerboard pattern, characterized in that the elastic working elements are made in the form of rods bent upward by convexity, the ends of which are hinged to the bushings and the body of the hopper, pins are installed on the convex side of the rods, and the rod has a drive with the possibility of perform reciprocating motion.

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