SU1128073A2 - Drier for raw cotton - Google Patents

Abstract

COTTON DRYER DRYER on author. St. No. 1059377, I distinguish with the fact that, in order to reduce losses and increase its life, the half-cylinder of the screening surface has a length exceeding the size of the break, of the drum, and is installed with partial overlapping of the ends of the last adjoining to the break, which in this place is outside equipped blades, inclined in the direction of rotation, and additionally enclosed in semi-cylindrical housings, coupled with a chimney and a half-cylinder. W f I tc 00 about CO FIG.

Description

The invention relates to a technique of drying cotton and can be used in cotton factories and procurement centers.

According to the main auth. No. 1059377 is a known raw cotton drier containing a rotating drum disposed in the chamber with sections of the straight, cleaning and countercurrent sections, the cleaning section having a screening surface, an auger for removing waste and a chimney, and the drum has a gap of the length of the cleaning section and the screening surface is made in the form of a semi-cylinder fixedly mounted with a pop drum and attached to the exhaust pipe CO.

The disadvantages of the known dryer are the large losses of raw cotton and the small resource due to the driving of compaction.

The aim of the invention is to reduce losses and increase resource.

The goal is achieved by the fact that in the dryer for raw cotton, the half-cylinder of the screening surface has a length exceeding the drum breakage and is installed with partial overlap adjacent to the end rupture of the latter, which in this place is outside equipped with blades tilted in the direction of rotation, and additionally enclosed in a semi-cylindrical casing, coupled with an exhaust pipe and a semi-cylinder.,

FIG. 1 shows schematically a dryer for raw cotton; in FIG. 2, section A-A in FIG. one.

The dryer contains a rotating drum 1 placed in the chamber 2, a loading shaft 3, an unloading mechanism A, nozzles 5 and 6 for introducing a heat carrier into a coil and a countercurrent, and a chimney 7 for the spent heat carrier. The drum 1 has a slope to the horizon in the direction of the unloading mechanism 4 and section along the length into three sections of the motorway 8, cleaning 9 (having a screw 10 to remove the litter) and countercurrent 11. At the junction of sections 8, 9 and 11 between the drum 1 and the camera 2, labyrinth-type seals 12 are provided. The drum 1 is divided into sectors by means of the radial ribs 13 and is provided with blades 14 on the inner surface. The drum 1 in section 9

It has a gap under which the screening surface 15 is located. The latter is complete in the form of a stationary half-cylinder and is attached to pipe 5 7. The screening surface 15 has a length exceeding the value of the breaking of drum 1 and overlaps its shells. In the overlap areas between the gap and the seals 12, the drum 1 is externally provided around the perimeter with inclined vanes 16, arranged by the Christmas tree in the direction of its rotation. At the same time, on the sides of the exhaust pipe there are 7 sections of the drum 1

5 with paddles 16 are enclosed in semi-cylindrical casings 17.

The dryer works as follows.

Wet raw cotton is fed into the rotary drum 1 through the loading shaft 3, where, due to its inclined position, it moves in the direction of the unloading mechanism 4. At the same time, on the length of section 8

5, the material is processed in a direct flow with high-temperature moist heat. the carrier supplied to the drum 1 through the pipe 5, and then after section 9 during section 11 - dry

0 coolant supplied countercurrent. This coolant enters chamber 2 through nozzle 6. In section 9, raw cotton is transported along the screening surface 15

- with the help of the blades 14 and the ribs 13 of the rotary drum 1. In this case, small trash particles pass through the surface 15 and are retracted by the screw 10. When the drum 1 rotates, the blades

16, the raw cotton pellets are retracted from the labyrinth seals 12 in the direction of the break, not allowing their spillage through the movable joints of the seals 12 and rolling. In place

By breaking the drum 1 over the length of the section 9, the spent coolant is discharged through the gaps 7 to the atmosphere through the gaps between the blades 14. At the same time, the presence of semi-cylindrical housings 17 above the blades 16 ensures removal from the seals 12 in the zone 7 of volatile or trash impurities separated from the spent coolant.

5 Dried and cleaned cottonwood is discharged by the unloading mechanism 4 and is fed for further processing.

311280734

The proposed dryer does not require low losses, it will slap manual labor for cleaning the raw material and the long life of the chamber from trash, character.

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Claims (1)

DRYER FOR COTTON-RAW on the ed. St. No. 1059377, distinguishing me by the fact that, in order to reduce losses and increase its resource, the half-cylinder of the screening surface has a length exceeding the size of the gap, the drum, and is installed with a partial overlap of the ends of the latter adjacent to the gap, which is provided on the outside with this blades tilted in the direction of rotation, and additionally enclosed in semi-cylindrical casings, paired with a chimney and a half cylinder. ~ | il η ^A Figure 1 SU, 1128073