SU1708709A1 - Bin device - Google Patents

Abstract

The invention relates to devices for induction in containers of predominantly rectangular sections of bulk materials prone to caking, and can be used in the energy, building, food and other industries. The aim of the invention is to increase the reliability of operation. In the initial position, the perforated sleeve 5 with the sleeve is located in the corner zone of the bunker. There is no air supply through the pipeline, coaxial springs 21 and 27 are maximally decompressed, both valve stages are closed. As the material is stored, the latter is compacted and, if necessary, unloading the hopper enters through the outflow opening. In the absence of an increase in the intensity of the outflow of a material, the air pressure is raised to RVN < P < Rnvr. In this case, the internal valve stage 25 is triggered, the small spring 27 is compressed, the ball 26 opens a hole with diameter d, compressed air through this hole and bypass channel 24 through the hollow stem and through the axial nozzle 22 shoots at the stuck material. 2 ZP.F-Ly. 4 ill. Evidb21 / 72022 Fig. Za00SCH)

Description

The invention relates to devices for induction in containers, mainly of rectangular cross section, bulk materials prone to caking, and can be used in the energy, construction, food and other industries,

A bunker device is known, comprising a housing having a rectangular shape in cross section and a device for breaking the arches located therein, comprising perforated sleeves located along the hull edges and connected to an air supply source with nozzles. However, this device is not reliable in operation,

The aim of the invention is to increase reliability in operation by expanding the functional capabilities of the device in the modes of inducing the compressed material by aeration, pneumatic loosening or pneumomechanical destruction of individual material.

The goal is achieved by those. that the body of the bunker device is made pyramidal, and the ends of the perforated for caving arches are provided with sleeves, and the sleeves fixed on the upper ends of the sleeves are mounted in pockets formed in the device body with longitudinal axes to the vertical at an angle greater than the angle of inclination of the body edges nozzles are placed in sleeves fixed to the lower ends of the sleeves and connected to the walls of the bunker by cables, and each of them consists of a two-stage spring loaded coaxially mounted in its housing with valve springs, the bottom end of which stands for the end of the body, and in the lower part of the latter there are inner groove with a ball and radical channels connected to it, while the ratio of stiffness coefficients of the outer and inner springs corresponds conditionally to:

, 2

(Sch.

C2 (b)

where Ci and Sa are the stiffness coefficients of the outer and inner springs;

O and d are the diameters of the passageways of the outer and inner valve stages.

FIG. 1 schematically shows a bunker device; FIG. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 1; Fig, 4 section bb In Fig, 3,

The bunker device contains a pyramidal body of the bunker 1c with an outlet 2. Pockets 3 in the upper zone along

the pyramidal casing ribs, in which devices for breaking vaults are installed, each consisting of an upper sleeve 4. a perforated sleeve 5 (for example, a fire hose) and a lower sleeve with nozzles 6. connected to the bunker case by a limiting cable 7. Pockets 3 with upper sleeves 4 are placed outside the discharge pipe material, and the longitudinal axes of the sleeves 4 are located to the vertical at an angle greater than the angle of inclination of the body edges, and intersect with the main axis of the bunker at a point above the calculated curve yes 8 formed material 9, upper sleeve 10 by means of conduits coupled to the compressed air source (not shown) Each lower sleeve comprises a housing 11 with a lid 12 and butt 14 in the housing 15. The

0 which, on the lower part, is made of an inner annular groove 16 with radial channels 17, a cover 12 and an end of the body 15, a stopper hardware lock nuts 18, a perforated sleeve 5 is fitted on the ledges 13 of the body

5 11 and by means of the cover 12 is crimped by a seal 19. A similar design of the fastening of the sleeves is made in the upper sleeves. Inside each lower sleeve 6 are placed nozzles consisting of a two-stage spring-loaded coaxially mounted valve springs, with axial guides in the end face of the housing 15 and a perforated partition 23. The outer stage 20 of the two-stage valve, with a pressure of the large spring 21, blocks the passage 12 with a diameter D. and the bottom end the outer stage stands for the end of the housing 15 in the form of a hollow stem 20 with an axial nozzle 22. The inner stage 25 with the ball 26 of the two-stage valve is pressed by the small spring 27 blocks the passage in the cylinder head pana outer stage 20 with a diameter of d. In the floor of the Stock 20 of the outer stage 20, the protrusion 23 is made with the overflow

5 by a channel 24. against which the lower spring of the small spring 27 rests. In the ring groove -16, a movable ball 29 is freely accommodated to block the radial channels 17, the lower sleeve 6 is connected to the limiting cable 7 by means of a screw 30,

Coaxial large 21 and small 27 springs have stiffness coefficients Ci and C2, respectively, and moreover

5, the spring 21 is more rigid than small 27. i.e., Ci C2, For the axial movement of both valve stages by the amount A, different air pressures are necessary; for the internal valve stage, 15-0.20 MPA.

Claims (3)

for the external valve stage, 350, 50 MPa, then the dynamic equilibrium in both cases is described by the system Ci A C2 A, since Rnar PBN, TH and so on. to achieve this goal, it is necessary and sufficient to meet the conditions (1). The bunker device operates as follows. In the initial position, the perforated sleeve 5 with the sleeve 6 is located in the corner zone of the bunker. There is no air supply through line 10, coaxial springs 21 and 27 are maximally decompressed, both valve stages are closed. As the material 9 is stored, the latter is compacted and, if necessary, the hopper is unloaded through the outlet 2, it is not satisfactory, with the complete cessation of the outflow of the bulk material. Then, pipelines 10 in the first stage supply compressed air with pressure P PBN. Both valve stages remain closed, the bunker device operates in the mode of material aeration through perforated hoses in the corner zones of the bunker. In the absence of the effect of increasing the intensity of the expiration of the material, the air pressure is raised to RVN P Ph. In this case, the internal valve stage 25 is triggered, the spring 27 is small, the ball 26 is opened, opens a hole with diameter d, the compressed air through this hole and the bypass channel 24 runs through the hollow pipe 20 and the nozzle 22 shoots at the frozen material. When the material is not sufficiently affected by these two factors (aeration and pneumatic collapse), the pressure of compressed air is increased to, which leads to the inclusion of both valve stages. As a result, the air through the passage 12 and the holes in the perforated partition 28 flows through the inner annular groove 16 into the radial channels 17. Since the radial channels 17 are directed to the walls of the bunker, the lower sleeve 6, together with the perforated sleeve 5, is caused by the resulting reactive component of the hopper 5. It goes deep into the bunker to its main axis. As a result of the formation of turbulent eddies and the redistribution of pressure between the inlet jets into the radial channels 17, a self-oscillation process occurs as a flow around the ball 29, as a result of which the ball alternately closes and opens the inlet windows in the radial. Together with the perforated sleeve 5 and the limiting cable 7, the channels 17 and the lower sleeve 6 perform complex spatial movements, being destroyed by the cable 7 and axial jets of the vaults, loosening the crumpled compressed bulk material by pneumomechanical action. Thus, expanding the functionality of the bunker device allows to increase the reliability of its operation as a whole at various degrees of caking and at different stages of storage of bulk material. Claim 1. Bunker device comprising a body having a rectangular shape in cross section and a device for breaking the arches located therein, including bodies located along the edges of the body and perforated sleeves with nozzles connected to the air supply source, about l and h Now, in order to increase reliability of operation, the casing is made pyramidal, and the ends of the sleeves are provided with sleeves, the sleeves fixed on the upper ends of the sleeves are mounted in the housing, the nozzles are placed in sleeves fixed on The ends of the sleeves, and each of them consists of two-stage spring-loaded coaxially mounted valve springs located in its housing and a nozzle located along the axis of the housing under the valve, the lower end of which protrudes beyond the end of the housing, in the lower part of the latter there are inner grooves with a ball and connected to there are radial channels, and the ratio of the stiffness coefficients of the outer and inner valve springs corresponds to the condition where Ci, C2 are the stiffness coefficients of the outer and inner springs; D, d - diameters of aisles, outer and inner valve treads. 2. Device pop. 1, characterized in that the sleeves mounted on the lower ends of the sleeves are connected to the body with cables to restrict the movement of the sleeves. 3. Ust | Yuy9T8o under item 1, that is, that the sleeves that are mounted on the upper ends of the sleeves, see uwana in pockets formed by the device body, and the longitudinal axes are located to the vertical at an angle greater than the angle of inclination of the edges of the body. 1 AA FIG. 2 ± JL 15 sixteen FIG, H