SU159459A1 - - Google Patents

Description

I.P. Kashcheev GRAIN

Mine-type grain dryers with louvered walls near the vertical grain columns of its shaft for drying unclarified grain are known. The dryer has a discharge device equipped with a mechanism to regulate the drying process.

The proposed grain dryer is designed for drying of non-refined grain coming from the combine.

For this, a metal basket is placed in the upper part of the shaft for catching large impurities, and the louvre walls of the grain columns of the mine are made in the middle and lower parts of larger louvers than in the upper part for better grain passage with fine impurities. Such constructive execution of the grain dryer helps to trap large impurities and better passage of grain with small impurities.

FIG. 1 shows the proposed grain dryer, view in plan; in fig. 2 is the same; the section along A-A pa of FIG. one; in fig. 3 - the same, a cut but bb in fig. one.

The grain dryer contains a drying ujaxTy /, firebox 2 and fans 3, 4 and 5. The drying shaft consists of two grain chambers 6. Each chamber, in turn, has grain columns 7. There is a buttonhole 8 in the upper part of the shaft 8. The release of grain is regulated by a mechanism 9, stir in the bottom of the chambers. The grain is dried with a mixture of air with flue gases, resulting from the combustion of liquid fuel, with one or two hundred and. V. Tsyrlin SHAFT TYPE

: Li

foam temperature regime with cooling of the grain.

Each grain column 7 consists of the upper short section 10 with vertical 1-step steppes, which have small louvers and, the area //, which has large louvers. The upper portion 10 is shaped like a vertical column for a more reliable passage of the grain. In section 11, due to the large blinds with the angle of inclination of the shelves of 50 °, the conditions for the free passage of the clogged grain are created while simultaneously mixing it.

The drying agent is blown by fans into the space between chambers 6, referred to as pressure chamber 12, from where it disperses into the spaces / 5 between the grain columns through special openings in the adjacent chamber walls. Thus, some of the gaps serve to supply the drying agent to the grain, while others serve to discharge the spent agent from the mine through special exhaust holes in the outer walls of the chambers.

Each exhaust hole is closed and closed by a branch pipe.

The raw grain enters the upper bunker through a pipe 14, inside which a metal basket 15 is suspended. The latter is intended to delay coarse litter, straw bunches and other impurities.

From the mine, the dry grain is removed by a mechanism for adjusting to the lower bunkers, and from them by gravity to the conveyor.

Subject invention

The shaft-type grain dryer with louvered walls at the vertical grain columns of its shaft for drying grain, containing an unloading device equipped with a mechanism for regulating the drying process, is different;

that, in order to trap large impurities and better passage of grain with small impurities, a metal basket is placed in the upper part of the mine, and the louver walls of the shaft columns in the middle and lower parts are made of larger louvers than in the top.

Aa

Fig 2