RU2376218C2 - Device for dustfree loading of loose materials into soft containers - Google Patents

Abstract

FIELD: packing industry.

SUBSTANCE: device for dustfree loading of loose materials into soft containers comprises hopper (1), frame (5) with loading chute (6), air duct for removal of dust and flexible suspensions (13). Air duct for dust removal is arranged in the form of annular channel (8), created with nozzle (7), which covers loading chute (6). Nozzle is equipped with hatches (9) with mounted filtering elements and accessories for their regeneration and fixator of soft container neck. Accessories for regeneration are arranged in the form of nets that are in contact with filtering elements with plates fixed on them for net oscillation. Hopper is equipped with feeder with drive equipped with time relay.

EFFECT: prevention of dust pollution of environment.

4 dwg

Description

The claimed invention relates to a device for loading and unloading using bulk materials and can be used in the metallurgical, heat power, construction and other industries, in particular for unloading dust from the storage bins of dry gas filters and loading it into soft containers.

A device for unloading dust from filters into mobile containers (Mazus MG Filters for collecting industrial dusts. - M: Mechanical Engineering, 1985. - P.126, Fig. 8.2), containing a hopper equipped with a dust discharge shutter.

The disadvantages of such a device include the fact that when dust is unloaded from the filter hopper using a dust discharge shutter, dust-free loading of mobile containers is not provided.

The closest to the claimed invention in technical essence and the achieved result is a device for dustless loading of bulk materials in soft containers (US 5518048, publ. 05.21.1996), containing a hopper equipped with a feeder with a drive mounted on the bottom flange of the feeder frame with boot chute, an air duct for removing dust, made in the form of an annular channel formed by a pipe fixed under the frame on its lower surface, which covers the boot heat, and flexible suspensions. In addition, the nozzle is equipped with an air duct for the removal of dust into the dust cleaning system, which is cut into its side wall, and the feeder is made in the form of a flat gate valve, which ensures overlapping of the feed heat channel.

The disadvantages of such a device include the need to use additional equipment with a prototype for removing dusty air generated in a soft container and, directly, additional devices for cleaning dust from the container dust from the container to ensure dust-free process of loading bulk materials from the hopper into soft containers. And this, in turn, leads to a complication and increase in the cost of the process of such an overload, and also due to the presence of a large number of additional equipment and connecting nodes between its individual elements, it leads to a decrease in the reliability of dust-free loading of bulk materials into soft containers.

The basis of the claimed invention is the task of creating a device for dust-free loading of bulk materials in soft containers, which due to the introduction of new structural elements and their relative position will prevent environmental pollution when loading bulk materials in mobile containers, in particular in soft containers.

The problem is solved due to the fact that in the device dust-free loading of bulk materials into soft containers containing a hopper equipped with a feeder with a drive, a frame with a loading chute fixed on the lower flange of the feeder, an air duct for dust removal, made in the form of an annular channel formed by a fixed according to the invention, the nozzle is equipped with hatches with filter elements mounted in them and aids for their regeneration in the form of grids in contact with filtering elements with plates fixed to them, causing the mesh to vibrate. In addition, in some cases of manufacturing in the inventive device, the pipe, which covers the boot chute, can be equipped with a neck lock of a soft container, made in the form of a detachable annular shell with a loop lock, and the feeder drive can be equipped with a time relay.

The implementation of the duct for the removal of dust in the form of an annular channel formed by a nozzle that covers the feed chute, allows dusty air to be uniformly discharged along the annular channel simultaneously from the entire volume of the soft container without contact of the dusty air with the bulk material entering the container, which, in turn, prevents additional pollution of the dusty exhaust air increases the degree of its subsequent cleaning by filtering elements and, thereby, prevents dusting of the environment s.

The equipment of the branch pipe covering the loading chute, with hatches with filter elements mounted in them, provides directly with the help of hardware integrated in the inventive device the reliable cleaning of dusty air displaced from a soft container from dust and prevents environmental dusting. The equipment of hatches with devices for their regeneration in the form of grids in contact with filter elements with plates fixed to them, causing the mesh to vibrate, structurally simply provides directly with the hardware built into the inventive device the restoration of the filtering ability of the filter elements.

Equipping the nozzle covering the feed chute with a retainer for the neck of a soft container, for example, a retainer made in the form of a detachable annular shell with a loop lock, allows the neck of the container to be sealed on the nozzle, thereby preventing dusty air from entering the environment.

The equipment of the bunker with a feeder with a drive, and the drive - time relay provides a metered supply of bulk material into the container, eliminating the possibility of overfilling, and also prevents dust from spilling when removing the neck of a soft container from the nozzle covering the loading chute, which helps to prevent dusting of the environment.

Given the above and taking into account the disclosed causal relationship between the totality of the features of the claimed invention and the achieved technical result, it can be argued that the problem posed as the basis for creating a device for dust-free loading of bulk materials in soft containers is completely solved, since the use of the invention prevents pollution environment when loading bulk materials into soft containers directly using the hardware of the claimed invention.

The essence of the inventive device dust-free loading of bulk materials in soft containers is illustrated by drawings, which show:

- figure 1 is a General view of the device with a mobile soft container;

- figure 2 is a view along aa in figure 1;

- figure 3 is a view of B in figure 1;

- figure 4 - node In figure 1.

The device includes a hopper 1, a feeder 2 with a drive 3, and a time relay 4 installed in the drive control system 3. A frame 5 with a loading chute 6 is mounted on the lower flange of the feeder 2. A pipe 7 is surrounded by a pipe 7, which forms an annular channel 8 with the chute 7 representing an air duct for removal of dusty air from a soft container. The pipe 7 is equipped with hatches 9, in which the filter elements 10 (of filter cloth) and devices for their regeneration are mounted, for example, in the form of grids 11 with plates 12 fixed to them.

Flexible pendants 13 are fixed on the frame 5. On the nozzle 7 a throat clamp of a soft container is mounted (for example, a container of type MKP 1,0T4-1,5 PPR2), which consists of a detachable ring shell 14 with a loop lock 15 having a handle 16. A soft container 17 is mounted on a transport trolley 18 or on a pallet (not shown).

The inventive device operates as follows.

After laying the soft container 17 on the transport trolley 18, the latter moves to the vertical axis of the claimed device, after which the slings of the container 17 are fixed on the flexible suspensions 13, and the neck of the container is worn on the pipe 7 and fixed on it with an annular shell 14 by means of a loop lock 15 with the handle 16.

Then the drive 3 is turned on, which drives the feeder 2, and at the same time the time relay 4 is started. Bulk material (dust, coal, grain, etc.) begins to flow into the container 17 through the loading chute 6 fixed on the frame 5. The bulk material, filling the container 17 displaces dust containing air from it. Dusty air, rising upward, enters the annular channel 8 and moves along the entire cross section of this annular channel 8. Since the pressure of the dusty air in the annular channel 8 slightly increases compared to atmospheric pressure, the dusty air through the filtering elements 10 mounted in the hatches 9 leaves the inventive device outside, being cleaned of dust.

As the dust layer accumulates on the filter elements 10, they are periodically regenerated, which is carried out by mechanical action on the plates 12, causing the mesh 11 to vibrate, which are in contact with the filter elements 10. As a result, the dust deposited on the filter elements 10 is scattered into the container 17.

After filling the container 17, the timer 4 turns off the drive 3, and the feeder 2 stops the flow of bulk material into the feed chute 6 and, accordingly, into the container 17.

The duration of the feeder 2 is controlled by setting the time relay 4 and is determined by the formula:

,

,

where T is the duration of the feeder, h;

V is the volume of material loaded into the container, m ³ ;

P - feeder capacity, m ³ / h.

The neck of the container 17 is removed from the pipe 7, the slings of the container are disconnected from the flexible suspensions 13, and the trolley 18 is rolled back into the range of the lifting means for further transportation to the destination.

A device made in this way provides reliable protection of the environment from dust contamination when loading bulk materials into soft containers.

Claims (1)

A device for dust-free loading of bulk materials into soft containers, containing a hopper equipped with a feeder with a drive, a frame with a loading chute fixed to the lower flange of the feeder, an air duct for removing dust, made in the form of an annular channel formed by a pipe secured under the frame on its lower surface, which covers loading chute and flexible suspensions, characterized in that the pipe is equipped with hatches with filter elements mounted in them and devices for their regeneration in the form of contact yuschihsya with filtering elements with fixed nets to them the plates, resulting in fluctuation of the grid.

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