SU844520A2 - Device for unloading loose material from hopper - Google Patents

Description

one

The invention is intended for the storage and unloading of bulk materials from a silo and may find application in such national household areas as construction, food, chemical and others.

A device for unloading bulk materials from a hopper is known, which comprises a horizontal scraper feeder mounted under the hopper discharge opening with an endless pulling member moving along a tray which, under the upper branch of the feeder, is made in the form of a grid 1.

The disadvantage of this device is the lack of capacity control.

The purpose of the invention is to expand the technological capabilities of the device by providing performance control.

For this purpose, it is equipped with a grid movable from the drive, which is installed between the discharge opening of the bunker and the tray, and the slots in the movable grid are made with a step equal to the step of the slots in the tray.

FIG. 1 is given a longitudinal section of the device; in fig. 2 - the position of the combined shelves of the tray and the movable grille; in fig. 3 - the position of the overlap of the movable grid when the slits of the tray overlap.

The device consists of body 1, drive 2 and tension 3 shafts, a traction chain with scrapers 4. In the upper part of the device is located a loading chute 5 - in the lower part under the tension shaft - an unloading chute 6. The upper branch of the traction chain moves 7, the lower branch, along the guide 8. The tray 9 of the device is designed as a grid and above

10, a movable grill 10 is mounted thereto associated with the drive of its movement. The grilles have the same slit width, and the slit pitch in the grid of the tray is equal to the slit pitch of the movable grid.

15 The device works as follows.

With maximum performance

the slots of the movable grating are combined with

cracks mi tray (see Fig. 2) and scrapers 4

the upper branch of the traction chain, capturing the material, as it progresses, pushes it through the slits of the lattices, at the same time destroying the closure of the stuck material. The material wakes up through the slots on the bottom of the device case 1, where it is picked up

25 using scrapers from the lower branch of the haul chain and heading into chute 6.

If it is necessary to reduce the capacity to the minimum, the grid drive 10 is turned on, which moves it

30 in the direction of the shaft 3. In the extreme position

(Fig. 3) the grill 10 overlaps the slits of the grill of the tray 9, thereby stopping the spilling of the material through the spruce. When moving a moving grate from one position to another by changing the size of the slot and the tray grate, it is possible to obtain the required performance or smoothly change the performance from maximum to minimum and vice versa. Thus, the capacity of the device for unloading bulk material from the hopper is regulated.

Claims (2)

1. Device for unloading bulk materials from the bunker according to ed. St. No. 447343, / characterized in that, in order to expand the technological capabilities of the device by providing performance control, it is provided with a drive-movable grid installed between the discharge opening of the bunker and the tray. 2. A device according to claim 1, characterized in that the slots in the movable grid are made in steps equal to the step of the slots in the tray. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 447343, cl. In 65G 65/42, 1972 (prototype). . / I Y // A Y // L fug.