SU1729953A1 - Hopper for semiloose materials - Google Patents

Abstract

The invention relates to devices for storing and unloading difficult-to-flow materials and can be used in the food, chemical, metallurgical industry, as well as in other industries engaged in the processing of difficult-flowing materials prone to freezing and sticking on the walls of the bunker. The purpose of the invention is to increase the reliability of the bunker. The bunker contains a vertical body 1, to the bottom of which is attached a conical bottom 2 with an outlet nozzle 3. Inside the bunker is fixed a baler 4, made in the form of a spiral-shaped pipe with a constant pitch H, mounted in the near-wall part of the body and the conical bottom. The spiral tube is provided with apertures a oriented along the generatrix of the conical bottom. Slotted nozzles 5 are attached to the holes, the longitudinal axis bb of which is oriented downward along the generator of the conical bottom. The slit nozzles are installed with a pitch L providing intersection of air jets emerging from adjacent nozzles. The step size is determined experimentally depending on the width and length of the nozzle slit, as well as on the pressure of the compressed air supplied to the baler. 2 Il. Yo

Description

Rusch-o

1

The invention relates to devices for storing and unloading difficult-to-flow materials and can be used in the food, chemical, metallurgical industry, as well as in other industries engaged in the processing of difficult-flowing materials prone to freezing and sticking on the walls of the bunker.

The purpose of the invention is to increase the reliability of the bunker.

FIG. 1 shows the proposed bunker, a general view; in fig. 2 - device for breaking the arch.

The bunker contains a vertical case 1, to the bottom of which a conical bottom 2 is attached with an outlet nozzle 3. Inside the bunker there is an articulator installed 4, made in the form of a spiral pipe with constant pitch H mounted in the near-wall part of the case and the conical bottom. The spiral tube is provided with apertures a oriented along the generatrix of the conical bottom. Slotted nozzles 5 are attached to the holes and the longitudinal axis bb of which is oriented along the generator of the conical bottom (Fig. 1) with the opening downward. The slit nozzles are installed with a pitch L providing intersection of air jets emerging from adjacent nozzles. The step size L is determined experimentally depending on the width and length of the nozzle slit, as well as on the pressure of the compressed air supplied to the baler.

The upper end of the spiral-shaped pipe is plugged with plug 6. At the lower end 7 of the spiral-shaped pipe 4 (Fig. 2), a thread 8 is cut to connect the valve 9 (Fig. 1). The chipper with the help of the valve 9 is connected to the main air duct 10 (Fig. 1).

The bunker for hard-flowing materials works as follows.

When the outlet nozzle 3 is closed, the hopper is filled with a non-flowable material 11. Then the gate (not shown) of the outlet nozzle is opened. The bulk material is poured out through the outlet of the outlet.

If a vault is formed during the loading of the bunker, a part of the material located under the vault is poured out of the bunker and the flow of bulk material from the bunker is stopped. In this case, the valve 9 is opened and compressed air is fed into the blender 4. Air passes through the internal cavity of the spiral binder pipe , through the holes and enters the slotted nozzles 5. Since

the holes of the slit nozzles b are oriented downward along the generatrix of the conical bottom, and the slit nozzles are located in its near-wall part, the air coming out of

nozzles, moves the material lying on the walls of the conical bottom to the outlet, destroying, at the same time the fifth arch. The body under the force of the body of material lying on it, deprived of support,

it collapses and the material is uniformly poured out of the bunker without supplying compressed air.

In the case of the release of bulk materials from a bunker capable of forming stagnant zones in a vertical case, such as bentonite, the stagnant zone is activated by the operation of slotted nozzles located in the turns of the spiral pipe installed in the case, which work simultaneously with the slotted nozzles located on the turns of the bludgeon on the conical bottom.

Since the jets of air coming out of

adjacent slotted nozzles intersect, aeration of the material occurs over the entire area of contact of the material with the walls of the bunker, which ensures the destruction of the roof in the conical bottom and the elimination of the stagnant zone in the vertical housing.

When the supply of material from the hopper is stabilized, the supply of compressed air to the free-breaking device is stopped by closing the valve 9.

The supply of the splash guard with slotted nozzles, the axes of which are directed along the walls of the casing, and their location on the spiral-shaped pipe with a pitch ensuring the intersection of the air jets leaving

from adjacent nozzles, increases the reliability of the bunker and, as a result, its performance.

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Claims (1)

Invention Formula Bunker for hard-flowing materials containing a vertical body with a conical lower part and an outlet and installed in the body 0 an arching device made in the form of a spiral-shaped pipe with openings in its lower part communicated with an air supply source, characterized in that, in order to increase reliability in operation by ensuring the cleaning of the walls of the bunker, the defragmenter is provided with slotted nozzles whose axes are directed along the walls the bodies, while the nozzles are arranged in increments that intersect the jets of air exiting adjacent nozzles.