SU1078220A1 - Device for drying raw cotton - Google Patents

Abstract

I. DEVICE FOR DRYING OF A COTTON-RAW, containing a chamber with live rolls, gas distribution nozzles located under it and a discharge screw for waste, located in the lower part of the chamber, characterized in that, in order to improve the quality of drying1 and operational reliability, the nozzles are trapezoidal, nx the output slots are located in the upper large bases facing the rollers of the roller table along their forming, and the lower part of the chamber above the discharge screw is made in the form of a dual-slope tray. 2. A device according to claim 1, characterized in that the walls of the dual-slope tray are hinged. sl 00 you to flash 1

Description

The invention relates to a drying technique, preferably raw cotton, and can be used in the textile industry.

A known dryer for raw cotton containing a drum. The gaseous coolant from the furnace compartment through the channel and the special nozzle of the feeder, which is introduced into the hollow drum drum with a gap around the circumference, is injected into the latter. Wet raw cotton by pneumatic transport through the separator into the feed opening of the feeder and with the help of an inclined auger is fed into the rotating drum, where it rises to the top and is discharged under the action of gravity. At the time of the fall, the raw cotton is blown through the drying agent 1.

The disadvantage of this device should be attributed to the increased flow rate of the gaseous coolant necessary for the cotton gum, since the majority of the heat-emitting fluid passes through the myo zone of the fall of the raw cotton. the cleaning effect is low, since the baraan is only provided with a mesh surface at the end, and it is not possible to set it all over the length due to the fact that the grid is clogged when wet raw cotton is used.

Also known is a plant for drying raw cotton, which contains a chamber with a roller bed along the river. The gaseous coolant enters the lower part of the chamber and a moving layer of raw cotton passes through the gaps between the rollers of the roller table. Weed impurities are constantly emitted along the entire route of cottony, which is a positive point 2.

However, the gaseous coolant, once in the chamber under the live rolls, heats the rollers of the live rolls along them forming it along its entire length, while the coolant tends to pass through those gaps between the rolls of the live rolls on which there is less cotton raw on top. Overheating of the raw cotton leads to damage to the fibers and seeds, or to fire.

It is also known a device for drying raw cotton, a roller-containing chamber, gas distribution nozzles located under it and a waste discharge screw, located in the lower part of chamber 3.).

A disadvantage of the known device is that the coolant heats the entire roller table. At the same time, when weed impurities fall out through the gaps between the rollers of the roller table, oco6effHO light fraction {cotton leaves, separate

fiber) under the influence of the upward flow of the gaseous coolant, can be suspended for a long time in the lower part of the chamber. As a result, they overheat, which can cause a fire. Individual particles of trash under the action of the flow of gaseous coolant can re-through the gaps between the rollers of the roller table to get into the moving cotton.

The aim of the invention is to improve the quality of the substance and operational reliability.

The goal is achieved by the fact that in the device for drying raw cotton, containing a roller-bed chamber, nozzles placed under it and a waste discharge screw located in the lower part of the chamber, the nozzles are trapezoidal, their exit slots are located in the upper large bases facing to the rollers of the roller conveyor along their reversing, and the lower part of the chamber above the discharge screw is made in the form of dvukhskatny tray.

In addition, the wall dvuhskatnogo tray installed pivotally.

FIG. 1 shows a dryer, a longitudinal section; in fig. 2 - the same cross section.

The device for drying raw cotton contains a chamber 1 with a roller table 2 located therein and rollers 3. Under the roller table

2 is located pipeline 4 of gaseous coolant, made in cross-section in the shape of a rectangle with slots 5 on the upper part for output of coolant under each roller 3. Above the slots 5 there are attached sections made in the form of expanding nozzles 6. On top of the pipeline 4, in the interval between the expanding nozzles 6, the slopes 7 are arranged, made in the form of two angularly mounted strips with the location of their peaks near the central part of the rollers 3 of the roller table 2. A screw screw 8 is located below the pipeline 4. The chamber 1 in the lower part has, on two sides, hinged walls 9 and 10 installed at an angle to one another.

The device works as follows.

Wet raw cotton enters the camera and enters the roller table 2, where under the action of rotating rollers 3 it moves in the form of a layer. The gaseous coolant through the pipeline 4, through the slots 5 and extending the nozzle 6 of the nozzle 6 gets under the bottom of the surfaces of the rollers 3, washing them, and through the gaps between the rollers

3 passes to the moved layer of cotton.

Claims (2)

1. DEVICE FOR DRYING COTTON-RAW, containing a chamber with a rolling table, gas distribution nozzles placed under it and an unloading screw for waste, located in the lower part of the chamber, characterized in that, in order to improve the quality of dry and operational reliability, the nozzles are made trapezoidal, their exit slots are placed in the upper large bases facing the rollers of the rolling table along their generators, and the lower part of the chamber above the unloading auger is made in the form of a gable tray. 2. The device according to π. 1, characterized in that the walls of the gable tray are pivotally mounted. FIG. /