SU672461A1 - Recirculation shaft-type grain drier - Google Patents

Description

(54) MINING RECIRCULATION BENCHMARKER

one

The invention relates to devices for drying the grain and can be applied to the needs of the harvesting system and in agriculture.

Mine recirculation grain dryers are known that contain parallel-installed multizone mines with inlet and outlet ducts inside, a distribution chamber for the heat transfer fluid located between the shields divided by partitions into compartments corresponding to the zones in the shchakhs and recirculation elevator 1.

However, in the known grain dryers the cost-effectiveness of the essential process is not high enough.

The aim of the invention is to increase the efficiency of the drying process.

This goal is achieved by the fact that the grain dryer additionally contains bunkers placed parallel to the shafts, mounted for movement and connected to the recirculation elevator, and inside the mines at the base of the first zone, inclined trays with grain receivers, fitted with gate valves and connected to the bunkers, are evenly placed over their cross sections. Delivered to-liiiuH tsm.m has also been achieved by the fact that in the bu :: kerg x installed horizontal 1 and LI-driIaEc1-.e branch pipes, communicating with diverting ducts.

On FC 1 pokpchapa we offer a grain dryer, a general view; and h of fig. 2 - grain dryer, side view; n 3 - y ;; ol 1.

Zereyus pplk. S. M, C; 1 Two mines of 1 s in; duhsra: 1p, -de; 1I: e.:; yyim boxes 2, distribution chamber 3, divided

partitions 4 on compartments, recirculation norium 5, bunkers 6 mounted on cantilevers 7 on rollers 8, gravity flow pipes 9, change1, inclined trays 10 with receivers 11 grain, gate valves 12 connected to the drive 13, peak 14, inside spring 15, heat exchanger 16, cylindrical and 17 nozzles and conveyor 18..

The recycling grain dryer operates as follows:

The raw grain is fed to the recirculation norium 5, which also receives the recirculating grain from the bins 6, both streams of zeon are mixed and put into the heat exchanger 16 for separation. After the binning, during which the humidity and temperature of the individual grains level off somewhat, the mixture of grain in two parallel streams enters the mines 1, where it is blown at the beginning with a drying agent, and at the end of the cooling air coming from them from the distribution chamber 3 to the inlet and outlet duct 2. In order to avoid mixing the drying agent with air, as well as to create differentiated modes, chamber 3 is divided by partitions 4 into compartments corresponding to zones in shchakht. The bulk of the grain passes through all the zones, is cooled, is released from the dryer to the conveyor 18, and with its help is sent to the warehouse. Part of the grain that has passed through the first zone falls into the receivers 11 of the inclined trays 10, which have different lengths and are evenly distributed throughout the cross section of the mines. The mouths of the trays 10 in each shaft are closed by a system of gates 12 connected to the drive 13, one for each niaxTbi, and a spring 15.

When the trays are periodically opened, the grain contained in them is poured into a common bunker 6 and sent along self-flowing pipes 9 to the recirculation elevator 5 as recycling grain.

In this way, the grain can be dried at any initial moisture content, and the multiplicity of raw and recirculating grain is regulated with the help of gates, and the selection of recirculating grain after the first zone of the day allows for deeper differentiation of temperature regimes by zones, thereby increasing the cost-effectiveness of the actual process.

If it is necessary to inspect the mines or replace the ducts, the bunker 6 installed on the rollers 8 can be moved away from the mines 1 along the beams 7.

In order to ensure the free discharge of the spent cyujKH agent from the withdrawal of the neck ducts of the second zone, the hopper 6 is provided with through horizontal cylindrical nozzles 17 placed therein respectively of the openings of the tapping ducts.

To prevent moisture from entering the recirculating grain when precipitation is above the hopper 6, a visor 14 is installed.

Claims (2)

1. A shaft recirculation grain dryer, containing parallel-mounted multi-zone mines with supply and discharge boxes inside, a distribution chamber for the heat transfer fluid between the shafts, divided by partitions into compartments corresponding to the zones in the crushing. that, in order to increase the cost-effectiveness of the actual process, the grain dryer additionally contains bins placed parallel to the shafts that are movable and connected to the recirculation th elevator and inside schaht at the base of the first zone uniformly on their trays sloping section installed receivers grain HJH6epaMH fitted and connected to hoppers. 2. A grain dryer according to claim 1, characterized in that horizontal cylindrical nozzles are installed in the bins, communicating with the outlet ducts. Sources of information taken into account in the examination I. USSR Copyright Certificate No. 500443, cl. F 26 B 17/12, 1975. I ////////////////// U /// 7у7 // 777 cg. / r sixteen 12 13 Tl hEJI   oh oh oh oh h