SU737738A1 - Ventilation-drying apparatus - Google Patents

Description

(54) VENTILATION-DRAINAGE DEVICE

I

The invention relates to devices for drying agricultural materials, mainly corn on the cob, and can be used in the harvesting and agricultural systems.

Ventilation-drying devices are known that contain sectional drying chambers and an air-distribution channel connected to them, blocked by a dual-slope louvered grille, conveyor and fans 1.

A disadvantage of the known devices is the low efficiency of operation.

The purpose of the present invention is to improve the efficiency of the operation of the ventilation-drying device.

For this purpose, the vertical walls of the chamber sections are equipped with a cascade of transverse reflectors with elastic overlays, and the conveyor is made with a loading branch, on the resetting head, which is equipped with a helical circle separator of broken seeds, and with a discharge branch located in the air distribution channel, fans with the suction sides are supplied with pipes of an adjustable intake of fresh, spent drying agent or outside air, and the dual-slope grate is equipped with a louvered discharge gate block cable-operated.

FIG. 1 shows the device, the total vnd; in fig. 2 - plan view of the device; in fig. 3 - device, cross section; in fig. 4 is its longitudinal section. The device contains a loading hopper 1 with a vibrating feeder 2, a conveyor 3 with upper loading and lower unloading branches; a screw bar separator 4 of self-crushed grain and a hopper 5 for accumulating and drying this grain by active ventilation; gate valves 6. for loading material into drying chambers dividing the drying chambers of the partition 7.

5 cascade of transverse reflectors 8 for damping material speed, louvrers 9 for unloading cobs and block-pull devices 10 for controlling them, air distribution channel 11 for two 2Q ramp grating 12 for guides 13 for unloading chippers, conveyor 14 for dried cobs. To the distribution duct are connected transverse air ducts 15 connected to

a collector 16 into which either the outside air is pumped by the fan 17 through the pipe 18 or the exhaust coolant through the pipeline 19 with the valve 20 or the fresh coolant from the heat generator 21. Throttle valves 22 are provided for switching the coolants or the outside air, and to control the connection diagram sections of the drilling dryer are installed two-section valves 23 and 24.

Works offer dryer as follows.

The cobs from the hopper 1 by the vibrating feeder 2 are fed to the loading branch of the conveyor 3. At the drop head of the loading branch of the conveyor, the self-breaking grain is separated in a screw bar separator 4, which is accumulated and dried in the bunkers 5. Each corn section is dropped down through the loading gates 6 in each section, In this case, the reflectors 8 fixed to the cascade of partitions 7 prevent injuries and collapse of the ears.

The collar can be purged after filling in one of the sections. Depending on the connection scheme (from the heat generator or from the pipeline of the spent coolant) and the humidity of the cobs (the initial one from the specified final one), set the duration of blowdown and the temperature of the screw of the spout. Consistently connect the other sections of the collar. With a significant decrease in humidity (more than 8-10%), the purge alternates with a backlog of approximately the same duration. At low relative humidity of the outside air, it is advisable to dry the cobs during the day, and at night, cool.

Upon reaching the predetermined humidity of the cobs, the sections open the louvre unloading gates 9, through which the cobs arrive at the unloading branch of the conveyor 3, and then onto the conveyor 14, which supplies the cobs to the following processing operations.

The drying agent, or outside air, ventilator 17 feeds into the air distribution manifold 16, and from it through valves 23B one or several air ducts 15, from which it enters one or both of the paired sections of the air distribution channel 11 with a double-sided louvre grille 12.

The connection of the section to the manifold is controlled by means of valves 23 and 24.

The economic efficiency of introducing a ventilation-drying device is achieved by reducing drying costs by 25-30% and improving the quality of the material.

The annual economic efficiency from the introduction of the device will be about 0.8 rubles per 1 ton of corn cobs processed, and about 1 million rubles in the industry.

Claims (1)

Invention Formula A ventilation-drying device, mainly for corn on the cob, containing sectional drying chambers and an air distribution channel connected to them, blocked by a double-sided louvre grille, conveyor and fans, characterized in that, in order to increase efficiency, the vertical walls of the chamber sections are provided with height a cascade of transverse reflectors with elastic nakadkamn, and the conveyor is made with a loading branch, on the dumping head of which a screw bar separator is installed ushennyh seed, and the discharge branch, located in the air distribution channel, the fans by the suction nozzles are provided with an adjustable fence fresh, spent drying agent or outside air, and dual discharge grill louver damper provided with drive blochnotrosovym. Sources of information taken into account during the examination 1. USSR author's certificate No. 642581, cl. F 26 V 3/04, 1977.