SU573696A2 - Shaft-tyre grain drier - Google Patents

Description

one

The invention relates to drying equipment, in particular the drying of cereals for food and seed purposes.

Grain dryers with partial recirculation of grain, containing a grain preheater in a padding layer and equipped with tagshomassoo® drying tanks and cooling pits equipped with ducts, are known, equipped with ducts, respectively, for coolant distributors and cooling air. The heater with the drying shaft has a common wall in the upper part, and in the lower part there is a “heat and mass heat exchanger” and serves as a distribution chamber for the heaters, and the silos of the mines are separated by a solid partition.

However, taihie eernooskii occupy large size lines of plc aad (y € and have their own dimensions and weight characteristics.

The closest 1s) to 6 "E11 and" s is the mine grain size, tiILl1sa, and news on the author. 55342S. It contains a grain preheater in a falling falling parallel-mounted drying shaft with a pressure distribution chamber between them, connected to the inputs of the heat carrier and a cooling agent, the heater being located in the usU-distribution chamber and one of its sides attached to the end wall. The purpose of the invention is to intensify the heat and mass of the air and ensure that the breeze is cleared of light particles.

On the CKesaaTsi sacKB figL, the nebragen of the pre-shift mine shilk earns; on

fng.2 - section A-A for r.lf in FIG. 3 section BB in FIG.,. .

Suvmlka svzit.bunker 1 for raw grain w ej tcepa 2 for grain heated in P € greg @ ea just 3, located

pressure chamber 4, which is located between the two dry AHCs S in the cooling shafts B and 7. The water supply point 3 to the ZO in the drying shafts 5 of the other two in parallel to the two 8 columns passing into the area of the cooling shafts B and 7 oesay & column 9, to the coorus from the exit side of the preheated cooling agent at in: 1, the cleaner 10

This is a grieving gnpa. Eu nosushilk -%: / o was created by the release mechanism II tf; {iraZuzochnymi bunkers 12, 13.

This comes from the bunker 1 and the koyonkey 8 preheater, where ateHTOM is blown at a temperature of 200

220 C. Next, the grain enters the common column 9, where 1; 5 is released in the loosened state by the spent outside air passing through the cooling shaft 6. The air captures light impurities during its movement, which are deposited in the purifier 10, and then sent to the second cooling shaft 7 and is thrown out. The grain is discharged through the exhaust mechanism 1L ft is fed into the bunkers 2, and then into mines 5, 6 and 7. The recycled grain from the shaft 7 is returned to the bunkers 2, and the dry grain from the cooling shaft b is sent to a warehouse or elevator.

The capacity of the proposed grain-5 dryers is increased by 15-20%, partial cleaning of light impurities and drying is provided, their reduction is reduced

heat losses, as well as improved technical and economic indicators of the drying process.

Claims (1)

Invention Formula Shakhtna grain dryer on the autor. W 553425, characterized in that, in order to intensify heat and mass transfer and ensure the cleaning of grain from light impurities, the preheater in the area of the drying shafts is made in the form of two parallel louvered columns, passing into the common column in the area of the cooling shafts. A heated cooling agent is attached to a jelly-type impurity cleaner. 6-6 Rig. 3