SU1331913A1 - Arrangement for moistening cotton fibres - Google Patents

Abstract

The invention relates to the textile industry and makes it possible to increase the efficiency of wetting cotton raw before ginning a black Godar jin battery to the fact that the confuser 2 is placed around a cylindrical pneumatic line 3 with perforated walls for transporting to the Window-air mixture. The confuser 2 is made in the form of a box directly connected to the chamber 1 for supplying a moistening agent, and is located at a distance from the end 4 of the pneumatic line, 1.5 to 2.0 of its diameter. At the same time, the perforation 5 along the axis of the pneumatic line is made oval, located on its side surface in a checkerboard pattern and has an area equal to 0, 1 - 0.2 the cross-sectional area of the pneumatic line, and the length of the perforated area is 2.0-2.5 diameters pneumatic tubing. 1 hp f-ly, 2 np. O) with with CD with

Description

113

The invention relates to the textile industry and can be used in cotton factories to clean raw cotton before ginning.

The purpose of the invention is to increase the processing efficiency.

FIG. 1 shows the proposed device, a general view; in fig. 2 shows section A-A in FIG. one.

The device comprises a chamber 1 for supplying a humidifying agent, a confuser 2 connected to a pneumatic line 3 for transporting a fiber-air mixture having a vertical section 4. The confuser 2 is placed at a distance of 1.5-2.0 times the diameter of the pneumatic line 3 from the end of its vertical part D. Along the axis of the latter along the lateral surface, oval perforation 5 is staggered in staggered order, the perforated area is 2.0-2.5 times the diameter of the pneumatic line 3. The perforation area 5 is 0.1-0.2 of the cross-sectional area. 3. Under the butt end of the vertical portion 3 4 of pneumatic conveyor 6 is mounted for supplying the processed cotton.

The device works as follows.

Raw cotton is supplied by the conveyor 6 to the end of the pneumatic line 3, where due to the discharge created by the raw pneumatic conveying system to the battery of gins (not shown), it is sucked together with the surrounding air. In the initial part of the pneumatic line 3, the air flow velocity diagram has the form of a paraboloid (with a minimum velocity of the surface layer). That is why lumps of raw cotton, having a small speed at the beginning of the pneumatic line 3, are pushed to its periphery. As a result, at the entrance to the perforated section of the pneumatic line 3, the raw cotton transported forms (with the exception of individual volatiles and other lighter fractions) a moving annular layer with a relatively uniform thickness and density

In the perforated section of the pneumatic line 3 (i.e. inside chamber 1), the fiber-air mixture is fed from a jet of moisturizing agent coming from chamber 1 through confusor 2 through perforation 5. Passing through the parietal layer of raw cotton agent intensively obdu32

wad him lumps and flyers. In the process of passing the perforated part of the pneumatic line 3, raw cotton

subject to repeated exposure

VIS moisturizing agent, as a result

the fiber cover and the surface of the seed coat are effectively moistened. The uniformity of wetting is ensured by grinding the lumps of cotton and their active mixing with repeated exposure to the moisturizing agent. Airflow directed towards the axis of the pneumatic line 3, for

the account of the shift of cotton lumps into faster layers of the transport air stream contributes to their rapid acceleration and increases the reliability of the cotton pneumatic conveying system to the gin battery.

Providing the pneumatic line 3 with a vertical section with perforation 5 inside the chamber 1, as well as placing the diffuser 2 from the end of the pneumatic line 3 on

a distance of 1.5–2.0 m makes it possible to increase the efficiency of wetting the cotton-syrup before its ginning, since the gravitational forces contribute to the uniform distribution of lumps

raw material around the perimeter of the section

of the pneumatic line. At the same time, on the length of the perforated area equal to 2.0 - 2.5 diameters of the pneumatic line 3, raw cotton manages to distribute and level the thickness of the formed ring.

target layer

The location of the perforated portion of the pneumatic line 3 inside the confuser 2 and the choice of the perforation area 5 within 0.1-0.2 of the cross-sectional area of the pneumatic line 3 allow using the phenomenon of raw cotton displacement to the periphery of the section

for grinding, intensive wetting and mixing it with counter flows of a moisturizing agent. With the indicated ratios of the areas of perforation 5 and pneumatic line 3, the total

under normal operating conditions, the flow rate of the humidifying agent does not exceed 1.35 and, therefore, the average rate of supply of the said agent to the pneumatic conduit does not exceed 1.63 m / s.

At such a speed, large (poorly suspended in the air) parts of the water have time to settle, and fine particles pass into the pneumatic line evenly from all sides.

313319

In addition, in the proposed device, there is no need to install an additional pneumatic system for suction of the spent humidifying agent.

Claims (2)

1. A device for wetting cotton raw, containing a supply chamber for a wetting agent with a confuser, a cylindrical pneumatic line with perforated walls, connected to a pneumatic conveying system, in order to increase the processing efficiency. 0 g 134 The confuser is placed around the pneumatic duct and is made in the form of a box directly connected to the chamber supplying the moistened agent, and is set at a distance of 1.5-2.0 of its diameter from the end of the pneumatic duct. 2. The device according to claim 1, about tl, which is that the perforation is made oval and is arranged in a checkerboard pattern along the axis of the pneumatic line with an area corresponding to 0.1-0.2 of the cross-sectional area of the pneumatic line, and the length of the perforated area corresponds to 2.0 - 2.5 diameters of the pneumatic duct. Uvlatnuyu Avent Editor N. Gunko Order 3772/24 Circulation 427 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, .A FIG. Z Compiled by Yu. Shvorobey Tehred M. Khodanich Proofreader M. Yaroshi