SU1672982A1 - Drying bin for loose materials - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to increase productivity. An inverter 7 is installed in the drying chamber bin 5, consisting of covers 8, side walls 9 and bottoms 10, forming intersecting channels 11. In the blowing zones 3, the material is treated with coolant passing through the perforated walls 4 and a layer of grain. The grain is heated and dehydrated due to the evaporation of moisture from the surface of the kernels, and the moisture is removed outside with the spent heat carrier. In zones 5 of the cage, the grain is not subjected to treatment with coolant and begins to cool, and the accumulated heat in the kernels begins to move from the center to the periphery, coinciding with the direction of movement of moisture. Moreover, the ratio of the height of the solid wall and the height of the perforated wall is 1: 2.5, and the ratio of the lengths of the sides of the inputs of the Inventor channels adjacent to the outer and inner walls of the annular chamber is 1: 0.75. 1 hp f-ly, 2 ill.

Description

The invention relates to agriculture, in particular to devices for drying bulk materials, preferably grains, and can be used in the agro-industry system.

The purpose of the invention is to increase productivity.

FIG. 1 shows a schematic diagram of a drying box, a vertical section; in fig. 2 is a section A-A in FIG. 1.

The drying chamber 1 consists of an annular drying chamber 2, which in its height has zones 3 of the blowers limited by annular perforated walls 4, zones 5 of the binning bounded by annular solid walls 6. In the zone 5 of the binders an inverter 7 is installed. , side walls 9 and bottoms 10 forming intersecting channels 11,

The drying chamber works in the following way.

Grain from above is continuously fed B to the drying chamber 2. a passage in succession of the purge zone 3 and from the bed 5. In the purge zones 3, the material is treated with coolant passing through the perforated walls 4 and the grain layer. The grain is heated and dehydrated due to the evaporation of moisture from the surface of the kernels, and the moisture is removed outside with the spent heat carrier. In tillage zones 5, the grain is not exposed to treatment with a coolant and begins to cool, and the accumulated heat in the kernels begins to move from the center to the periphery, coinciding with the direction of moisture movement, which speeds up the process of bringing moisture to the grain surface. There is an accelerated process of heat and mass transfer inside the kernels and in the intergranular space. At the same time with the above processes, the grain goes through the inverter 7 installed in the zone 1 5 of the spacing. In this case, a layer of grain located above the inverter 7 and moved under

the action of graphitic forces. divided into two streams which are displaced along cross-installed bottoms 10 from the outer to the inner walls 6, and vice versa.

Repeated (by the number of discharge zones with inverters) changing the position of the flows of the grain layer relative to each other and the walls of the drying chamber provides uniform heating and drying. Optimum operation of the drying chamber is carried out at a ratio of the height of the solid wall of the binning area and the height of the perforated blowing area 1: 2.5. when the thickness of the annular layer is equal to the height of the solid wall of the binning zone. The inputs of the inverter channels adjacent to the outer and inner walls and forming the separating edge of the annular drying chamber have side lengths equal to 1: 0.75, and ensure uniform material transportation in the horizontal section of the drying chamber.

Constantly passing through the drying chamber the material is sent for further processing, ensuring the precision of the work of the complexes or lines of post-harvest grain processing.

Claims (1)

1. Drying bin for bulk materials containing a vertical drying annular chamber in the form of coaxially arranged perforated and solid walls with an inverter placed in it consisting of crossing channels formed by walls and bottoms and having inlet channels adjacent to the outer and inner walls and forming a separating edge of the annular chamber, characterized in that. In order to increase productivity, the inverter is installed between solid walls, while the ratio of the height of the solid wall and the height of the perforated wall is 1 2.5 2.3 Akrompop 1, characterized in that the ratio of the lengths of the sides of the inputs of the channels of the inverter adjacent to the outer and inner walls of the annular chamber, is 1 0.75 FIG. 2