RU215947U1 - GRAIN FLOW CROSSING SYSTEM - Google Patents

Abstract

The present utility model relates to a grain flow cross-hair system in modular type grain dryers.

Its use makes it possible to achieve a technical result in the form of a decrease in the percentage of ignition of grain in a grain column when drying crops that are difficult to dry (technical oilseeds). For this purpose, a system of crosshairs of grain flows is proposed, which is structurally designed in such a way that there are no areas not filled with grain in it.

When grain moves in the system of cross-flows, the inner part of the walls of the system is self-cleaning due to the friction of the grain against the wall, leaving no chaff and grain dust deposits on the walls from the inside, which are the provocateurs of the fire source. The grain flow crosshair system comprises an upper panel 1, a lower panel 2, a narrowing panel 3, an end wall 4, a floor of the upper module 6, an inspection hatch 7, an upper counter panel 9, a purge window 10, an inspection hatch 11. f-ly, 3 ill.

Description

The field of technology to which this utility model belongs

This utility model relates to a system for organizing the crosshairs of grain (product) flows and can be used in modular column-type grain dryers.

State of the art

In the patent Grain Cross-Over TM System U.S. Patent #6,360,451 of the American manufacturer of modular column dryers SUKUP Manufacturing Co. presents a system of crossing grain flows at the place of grain flow from the upper module of the grain dryer to the lower one, the purpose of which is to organize a change in the position of the grain layer relative to the walls of the grain column. Since the grain adjacent to the inner wall of the grain column is more heated than the grain adjacent to the outer wall, the drying rate of the inner grain layer is higher than the drying rate of the outer (less heated layer).

When moving grain from the upper module of the grain dryer to the lower one, thanks to the system of cross-flows, the location of the inner layer of grain is changed to the outer one using the system of cross-flows.

The disadvantage of this design is the presence of unfilled grain sections of the grain column at the intersection of grain flows. In the shown FIG. 1 sections of the grain column not filled with grain are marked with triangles. The entire crosshair system is circled.

Zones not filled with grain, over time, concentrate the sticking of chaff and other grain impurities, which leads to the ignition of grain in this place.

Utility Model Disclosure

This utility model solves the problem of eliminating the shortcomings of the closest analogue and achieving a technical result in the form of a grain flow crosshair system design that has a significantly lower propensity to ignite grain in the crosshair zone, and also has design features to ensure simple and affordable cleaning of the system.

The specified problem with the achievement of the noted technical result is solved by the fact that in the present utility model the design of the crosshair system is proposed, in which cavities not filled with grain are eliminated. Grain, flowing through the cross-flow system, completely fills the grain column in the place of the cross-flow, leaving no empty areas.

Access to the zone of crosshairs is limited from above by the floor of the upper module 6 with an inspection hatch 7 made of sheet metal with a cover fitted with an interference fit on a shell (not shown in the figures) with a rubber seal (not shown in the figure). When removing the cover 7 of the inspection hatch, the operator has the opportunity to blow through the cavity of the cross-flow system using a compressed air hose, bounded from above by the floor of the upper module 6 with hatch 7, and from below by the panels of the upper 1 and lower 2. at the moment of blowing, they fly out outside the grain dryer into specially organized purge windows 10. If necessary, it is possible to clean the inside of the grain column in the zone of cross-flow. For this purpose, inspection hatches 11 are provided, made in the form of a gate, which, when opened, allows access to the inside of the column of the grain flow crosshair system.

Brief description of the figures

The present utility model is illustrated by figures showing an embodiment of a grain flow crosshair system. The same or similar elements are identified by the same reference numerals throughout the sketches.

On FIG. 1 shows the Grain Cross-Over TM System, developed by the American company SUKUP Mqanufacturing Co., with problem areas that are not filled with grain and are concentrators of pollution and ignition.

In FIG. 2 shows the design of the grain flow crosshair system.

The figure shows the top panel 1, the bottom panel 2 and the narrowing panel 3. At the intersection of the grain flows, the thickness of the grain column remains the same as the thickness of the perforated section of the grain column. At the same time, the width of the grain column is halved by means of the narrowing panel 3. The narrowing panel 3 provides narrowing of the grain layer when passing through the cross-flow system in order to bypass the oncoming flow of grain from the opposite grain column.

The figure shows the upper counter panel 9, which maintains the thickness of the grain layer after passing through the narrowing panel, preventing the formation of areas not filled with grain.

The figure shows the floor of the upper module 6 with an inspection hatch 7. The inspection hatch 7 allows inspection of the state of contamination of the grain flow crosshair system, as well as its cleaning.

The figure shows purge windows 10 and an inspection hatch 11. Purge windows 10 are the exit point for dust and chaff at the time of blowing out of the grain dryer.

Inspection hatches 11 allow you to inspect and clean the inside of the crosshair system.

On FIG. 3 The system of flow crosshairs is shown in two projections for greater visualization.

Detailed Description of the Embodiment

The grain moves down the grain columns of the upper module under the influence of gravity. The speed of grain movement is limited by the speed of rotation of the dosing rollers of the unloading mechanism of the grain dryer (not shown in the figures).

When grain enters the crosshairs of the grain flows, the width of the grain column is gradually narrowed by half by means of the narrowing panel 3. This is required in order to ensure that grain from the right column of the upper module enters the left column of the lower module. Taking into account the special design of the system of crossing grain flows, due to the presence in the design of the top response panel 9, located parallel to the panels, perforated grain column 8, the system of crossing grain flows is completely filled with grain and has no voids. For this reason, all panels are self-cleaning by the grain moving inside them, preventing the formation of dust zones.

Inspection hatch 7, as well as inspection hatches 11, are used to clean the system of flow crosshairs, which allow cleaning the outer and inner parts of the grain column in the zone of grain flow crosshairs.

Claims (2)

1. The grain flow crosshair system, containing upper (1) and lower (2) panels, limiting the grain layer at the crosshair of grain flows, a narrowing panel (2), which performs the function of narrowing the grain layer for the purpose of bypassing the oncoming grain flow, end wall (4 ), which is a continuation of the partition of the grain column (5) in the place of the crosshairs of the flows, the floor of the upper module (6), which has an inspection hatch (7) with a cover, designed to clean the inside of the crosshairs system, an upper counter panel (9), limiting the product layer from above after its passage through the crosshair system, a purge window (10), designed to remove chaff and grain dust outside the grain dryer, an inspection hatch (11), which allows cleaning the internal cavity of the system. 2. The system according to claim 1, characterized in that the upper counter panel (9) is structurally located parallel to the axis of movement of the product in the grain column.

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