RU173920U1 - VIBRATION DEVICE FOR MOVING AND DRAINING OF BULK MATERIALS - Google Patents

Abstract

The utility model relates to mining, construction, chemical and other industries, where the movement and dewatering of bulk, including fine, materials is carried out. The vibration device for moving and dewatering bulk materials includes an elastic working body of variable curvature, consisting of loading, central and unloading sections, curved upward and unloading edge downward on the border of the central and unloading sections and mounted on the frame using elastic elements, a vibration exciter mounted on the unloading section of the elastic working body, and a self-locking shutter pivotally mounted on the frame in the area of the unloading section of the elastic working body . The elastic working body in the central section has through holes for supplying hot air or flue gases from below, covered with elastic heat-resistant plates from above, fixed at one edge on the surface of the elastic working body. EFFECT: combination of operations of moving and dehydration of bulk materials, including fine ones. The possibilities of using a vibration device are expanding. 5 cp f-ly, 2 ill.

Description

The technical solution relates to the mining, construction, chemical and other industries where the movement and dewatering of bulk, including fine, materials is carried out.

Known vibration device for dehydration of bulk materials according to the patent of the Russian Federation for invention No. 2572138, class. B01D 33/03, B01D 35/20, publ. in BI No. 36, 2015, containing a filter, loading device, discharge devices for draining the filtrate and condensed fraction. The filter is resiliently mounted on the base, inside of which the vibrator is horizontally mounted. The filter is hollow in the form of a square with a wave-shaped screw perforated surface along the inner perimeter with pockets of a wave-like shape. It is mounted from four hollow perforated sections rigidly connected alternately to each other, each of which is a hollow circular perforated sector with four rectilinear sections. The filter pockets are made of at least one perforated strip and can be different not only in shape but also in size. Along the entire perimeter of the filter, the passage section varies not only in shape, but also in area. The quadrangles of the perforated strips from which the perforated sections are mounted are not only inclined to each other, but also to the axis of symmetry of the filter. Multiple perforated surfaces are formed on the inner surface of the filter, which along the perimeter can be different not only in shape but also in size. An unloading device in the form of an annular skirt with an unloading hole for discharging the filtrate is attached to the base at an angle β to the horizontal. The signs of this vibration device, which coincides with the features of the proposed vibration device, are the presence of a vibrator for the forced movement of bulk materials and the creation of a closed volume in which the processes of moving and dehydration of bulk materials are carried out.

Such a vibration device is notable for the complexity of its design, it contains a large number of perforated surfaces that can become clogged with drained fine particulate material, which reduces the performance of the dewatering process and necessitates periodic dismantling of the structure of the vibration device and cleaning of perforated surfaces associated with forced downtime.

Also known vibration conveyor device according to the copyright certificate of the USSR for the invention No. 700394, class. B65G 27/00, publ. in BI No. 44, 1979, containing a flexible transporting organ in the form of a metal sheet, to the lower surface of which vibrators are attached at an equal distance from each other, the distance between which is equal to or a multiple of the wavelength or its half. The signs of this vibratory conveyor device, coinciding with the features of the proposed vibratory device, are a transporting body, which is a thin metal sheet, and two vibration exciters mounted on it.

Such a device is distinguished by its simplicity of design, low metal and energy consumption, however, it has limited capabilities when working with bulk materials that need to be dehydrated, because its design does not provide for simultaneous operations of moving and dewatering bulk material, that is, it does not solve the problem.

The closest analogue in technical essence and the set of essential features is a vibration device for the production of bulk, cohesive and caking materials, known according to the patent of the Russian Federation for utility model No. 156689, class. B65G 27/10, publ. in BI No. 31, 2015, including a vibration exciter, an elastic working body of variable curvature, having loading and unloading sections and mounted on the frame using elastic elements. The discharge section of the elastic working body is curved upward and the discharge edge downward, and the frame is equipped with a self-locking shutter pivotally fixed at the level of the discharge edge of the elastic working body. All elements of this vibration device are present in the design of the proposed vibration device.

Despite the simplicity of the design and the reliability of the known vibrating device, the problem of expanding the capabilities of the device when working with bulk materials saturated with moisture has not been solved, because the design of the device does not provide for the operation of dehydration of bulk materials.

The technical problem is to expand the possibilities of using a vibration device and is solved by combining the operations of moving and dehydrating bulk materials, including fine ones.

The problem posed is solved as follows. A vibration device for moving and dewatering bulk materials is proposed, including an elastic working body of variable curvature, consisting of loading, central and unloading sections, curved upward and unloading edge downward on the border of the central and unloading sections and mounted on the frame using elastic elements, a vibration exciter, fixed on the discharge section of the elastic working body, and a self-locking bolt pivotally mounted on the frame in the area of the discharge section of the elastic working body. According to the technical solution, the elastic working body in the central section has through holes for supplying hot air or flue gases from below, covered with elastic heat-resistant plates from above, fixed at one edge on the surface of the elastic working body.

This technical solution allows not only to move the bulk material along the elastic working body, but also to provide contact of the bulk material with hot air or flue gases supplied from below through the through holes of the elastic working body. Due to this, heating and dehydration of bulk material occurs due to the evaporation of excess moisture. During vibration, elastic heat-resistant plates, fixed at one edge on the surface of an elastic working body, cover through holes and prevent spillage of bulk material without interfering with the supply of hot air or flue gases.

In this case, it is advisable that the elastic working element in the central section with its lower surface be connected to a pressure chamber formed on the frame and equipped with a fitting for supplying air or furnace gases. This allows you to increase the intensity of the supply of hot air or flue gases to the bulk material through the through holes of the elastic working body and thereby increase the efficiency of dehydration of bulk material.

It is advisable that inside the pressure chamber were elements for heating the air, mounted on the frame. This technical solution allows combining the operations of moving and dewatering bulk materials in an autonomous mode of operation of a vibrating device, eliminating the need for access to a source of flue gases, thereby simplifying the use of a vibrating device.

It is advisable that the pressure chamber through the fitting was connected to the flue gas supply pipe. This technical solution allows the combination of the movement and dehydration of bulk materials without the use of elements for heating air, which simplifies the design of the vibrating device.

It is also advisable that the elastic working body at the boundary of the central and discharge sections be curved upward with the smallest possible radius, and be equipped with an additional vibration exciter at the loading section. This allows you to divide the elastic working body into two zones located at an angle to each other. The first one includes the loading and central sections of the elastic working body, on which the bulk material is moved and dehydrated, and the second includes the unloading section along which the material moves down at an increased speed to the storage location, without interfering with the movement of the material along the central section of the elastic working body. With a minimum bending radius of the elastic working body at the boundary of the central and discharge sections and the creation of two zones located at an angle to each other, it is possible to increase the damping of vibrations generated by the vibration exciter fixed on the discharge section and propagating along the elastic working element from its discharge section to the central and boot sections. However, the use of an additional vibration exciter at the loading section prevents oscillation attenuation and ensures uniform movement of bulk material along the loading and central sections of the elastic working body.

In addition, it is advisable that the frame was equipped with a casing covering the elastic working body from above and having a steam outlet, and the self-locking shutter was pivotally mounted on the frame at the level of the upper inner surface of the casing with the possibility of contacting the lower edge of the self-locking shutter with the discharge section of the elastic working body. This makes it possible to create a closed volume in which the movement and heating of bulk material is carried out without contact with the external environment and loss of thermal energy. The heating of bulk material is enhanced, and the dehydration process is accelerated. This is facilitated by the fact that a pivotally fixed self-rotating shutter contacts the discharge section of the elastic working body and opens only under the pressure of bulk material. Excessive moisture in the form of steam is removed from under the casing through the steam outlet.

The essence of the technical solution is illustrated by examples of a specific embodiment of a vibrating device for moving and dehydrating bulk materials (hereinafter - the device) and the drawings of FIG. 1, 2. In FIG. 1 shows a structural diagram of the device (side view in section) when applying hot air; in FIG. 2 is a structural diagram of the device (side view in section) when supplying flue gases.

The device includes an elastic working body 1 of variable curvature (hereinafter - working body 1), consisting of loading, central and unloading sections, curved upward and unloading edge down on the border of the central and unloading sections and mounted on the frame 2 using elastic elements 3, vibration exciter 4, fixed on the unloading section of the working body 1, and a self-locking shutter 5 (hereinafter - the shutter 5), pivotally mounted on the frame 2 in the zone of the unloading section of the elastic working body 1. The central section of the work its body 1 has through holes 6 for supplying hot air or flue gases (hereinafter referred to as openings 6), covered from above with elastic heat-resistant plates 7 (hereinafter referred to as plates 7), fixed at one edge on the surface of working body 1. Working body 1 on its central section the lower surface is connected to the walls of the pressure chamber 8 (hereinafter referred to as the chamber 8): directly to the walls of the chamber 8 made of elastic material or using heat-resistant elastic plates 9, as shown in the drawings. The pressure chamber 8 is equipped with a fitting 10 for supplying air or flue gases. Inside it, elements 11 for heating the air can be located, fixed on the frame 2 (Fig. 1), or through the nozzle 10 it can be connected to the pipeline 12 (Fig. 2) for supplying flue gases. At the border of the central and discharge sections, the working body 1 is bent upward with the smallest possible radius (as shown in the drawing), and at the loading section it is equipped with an additional vibration exciter 13. The frame 2 is equipped with a casing 14 having a steam outlet 15 and a receiving funnel 16 for feeding bulk material 17, including a finely dispersed one, which closes the working body 1. The shutter 5 is pivotally mounted on the frame 2 at the level of the upper inner surface of the casing 14 with the possibility of contact of the lower edge of the shutter 5 with the unloading part Astcom working body 1.

The device operates as follows.

In the idle state, the vibration exciters 4.13 and the heating elements 11 (Fig. 1) are turned off, the shutter 5 is closed, the receiving funnel 16 is open, the air supply (Fig. 1) or flue gases (Fig. 2) through the nozzle 10 is absent.

During operation of the vibrating device through the nozzle 10, air is supplied to the pressure chamber 8 formed on the frame 2 (Fig. 1), subsequently heated by the elements 11, or flue gases are supplied from the pipeline 12 (Fig. 2). Hot air or flue gases accumulate, and then under pressure are supplied through openings 6, covered by plates 7. Bulk material 17 is loaded into the receiving funnel 16, falling on the loading section of the working body 1. With continuous supply, it completely fills the loading funnel 16, and between the working body 1, the casing 14 and the shutter 5 forms a closed volume. The vibration exciters 4, 13 are turned on, and the bulk material 17 moves along the working body 1. Hot air or flue gases supplied under pressure through the openings 6 heat the bulk material 17. Excess moisture, connecting with hot air or flue gases, rises in the form of steam above bulk material 17 and is removed from under the casing 14 through the steam outlet pipe 15.

Since at the boundary of the central and discharge sections, the working body 1 is bent upward with the smallest possible radius, the angle of inclination to the horizon of the discharge section is much larger than the central one. Therefore, when bulk material 17 enters the discharge section, its downward movement speed increases. Due to this, the dehydrated bulk material 17 does not accumulate on the discharge section of the working body 1 so as to impede the movement of the wet bulk material 17 along the central section of the working body 1. Since the vibration exciter 4 creates vibrations in the discharge section of the working body 1, and the vibration exciter 13 on its loading section, the speed of movement of the bulk material 17 remains uniform, and its value is selected from the condition of ensuring the time required for heating the bulk material 17 and evaporation contained therein excessive moisture.

Since the movement and dehydration take place in a confined space, due to isolation from the atmosphere, hot air or flue gases completely transfer thermal energy to the moving bulk material 17, which improves the efficiency of the dehydration process.

Under the pressure of the dehydrated bulk material 17, the shutter 5 opens at an angle sufficient to release the bulk material 17, and in the absence of pressure closes, preventing the closure of the volume in which the bulk material 17 moves and dehydrates.

In addition, the casing 13 prevents spraying of the dehydrated fine material 17 under the influence of vibration, and the plate 7 prevents spillage.

Thus, the design of the proposed device allows for the dehydration of bulk material 17, without stopping its movement to the place of installation, thereby preparing for direct use. By combining operations expand the possibilities of using the device.

Claims (6)

1. A vibration device for moving and dewatering bulk materials, including an elastic working body of variable curvature, consisting of loading, central and unloading sections, curved upward and unloading edge downward on the border of the central and unloading sections and mounted on the frame using elastic elements, vibration exciter fixed on the discharge section of the elastic working body, and a self-locking bolt pivotally mounted on the frame in the zone of the discharge section of the elastic working body Ghana, characterized in that the elastic working body in the central section has through holes for supplying hot air or flue gases from below, covered from above with elastic heat-resistant plates, one edge fixed to the surface of the elastic working body. 2. The device according to claim 1, characterized in that the elastic working body in the central portion with its lower surface is connected to a pressure chamber formed on the frame and equipped with a fitting for supplying air or flue gases. 3. The device according to claim 2, characterized in that elements for heating the air are mounted on the frame inside the pressure chamber. 4. The device according to claim 2, characterized in that the pressure chamber through the specified fitting is connected to the flue gas supply pipe. 5. The device according to claim 1, characterized in that the elastic working body at the boundary of the central and discharge sections is curved upward with the smallest possible radius, and is equipped with an additional vibration exciter at the loading section. 6. The device according to claim 1, characterized in that the frame is equipped with a casing covering the elastic working body from above and having a steam outlet, and the self-locking shutter is pivotally mounted on the frame at the level of the upper inner surface of the casing with the possibility of contacting the lower edge of the self-locking shutter with the discharge section of the elastic working body.

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