UA136196U - GAS DISTRIBUTION DEVICE OF THE APPARATUS OF THE Pseudo-liquefied layer - Google Patents

Abstract

The gas-distributing device (FGD) of the fluidized bed apparatus contains two parallel fixed grate, each of which is made in the form of a triangular prism with a vertical outer and horizontal lower walls, the right grate is located at a given distance from the lower base of the left grate. grate, a plate is fixed on the axis, which repeats the shape of the horizontal gas jet with the possibility of mechanical adjustment of the size of the fractures.

Description

The useful model belongs to the technological heat and mass exchange equipment for the dehydration and granulation of solutions in a fluidized bed and can be used in the chemical, pharmaceutical, food, mining and other industries.

The closest analog to the proposed useful model in terms of technical essence is a gas distribution device (GRP) (Patent of Ukraine for a utility model Mo 109509 0 ВО1у 8/44. Gas distribution device of a fluidized bed apparatus / S.O. Turko, Y.M. Kornienko, S. Haydai. S, Martyniuk

O.V., Lubeka A.M. - 25.08.2016, Bul. Mo 16), which contains two parallel fixed grates, each of which is made in the form of a triangular prism with vertical outer and horizontal lower walls, the right grate is located at a given distance from the lower base of the left grate, two plates are located one above the other between them, and the plates are located one above the other with specified steps between the slots and: and and", near the left slot, narrowing inserts are attached to the fracturing plates, the grate and the walls of the chamber.

The disadvantage of the considered design is the lack of ability to regulate the amount of energy supplied with the liquefaction agent through the fracturing cracks, which, when changing the initial height of the layer of granular material, negatively affects the quality indicators of the hydrodynamics of heterogeneous fluidization in the self-oscillating mode.

The useful model is based on the task of improving the fluidized bed fracturing device design, which will ensure the possibility of changing the amount of energy supplied with the fluidizing agent through the fracturing slits when changing the height of the layer of granular material, which prevents a negative impact on the qualitative indicators of the hydrodynamics of heterogeneous fluidization.

The problem is solved by the fact that in the gas distribution device of the fluidized bed apparatus, which contains two parallel stationary grates, each of which is made in the form of a triangular prism with vertical outer and horizontal lower walls, the right grate is located at a given distance from the lower base of the left grate, to which narrowing inserts are attached, a plate is fixed between the grates on the axis, which repeats the configuration of a horizontally directed gas jet with the possibility of mechanically adjusting the sizes of the fracturing slots. Such a fracturing design ensures the introduction of a gas flow through two slits located at a distance from each other in the horizontal and

From vertical directions. The plate repeats the configuration of a horizontally directed gas jet, which makes it possible to prevent the formation of stagnant zones on it, and the possibility of adjusting the angle of inclination of the plate allows you to change the sizes of the slits depending on how much energy needs to be supplied by each of the gas jets to ensure the implementation of non-homogeneous jet-pulsation fluidization in self-oscillating mode when changing the initial height of the layer of granular material.

The essence of the useful model is explained by the drawings, which show: in fig. 1 - longitudinal section of the chamber of the fluidized bed apparatus; in Fig. 2 - a view of the gas distribution device of the fluidized bed apparatus. The gas distribution device contains two fixed grates 1 and 2, each of which is made in the form of a triangular prism with vertical outer 3Z and horizontal lower walls 4, between the grates there is a plate 5 fixed on a movable axis 6.

The gas distribution device works as follows: the flow of gas (heated coolant), which is subject to interaction with solid particles, is fed in the lower part through the slots of the gas distribution device in two jets - in horizontal and vertical directions. This method of energy input with a gas coolant provides intensive directed vertical movement of solid material in the right part of the granulator chamber (ascending zone) with the subsequent transfer of particles to the left part of the granulator chamber, where the gas phase moves through a layer of granular material in filtration mode.

Claims (1)

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