SU1418221A1 - Pneumatic installation for conveying loose material - Google Patents

Abstract

The invention relates to the industrial pneumatic transport of high concentrations of bulk materials, namely, to aerosol transport facilities. The purpose of the invention is to reduce energy consumption. The device contains a boot 1 and a mixing chamber 2, interconnected by a cylindrical housing 3, in which a driving screw 4 is installed. In a mixing chamber 2 there is a conical intake nozzle 10 made with an inner surface in the shape of a Venturi nozzle with the formation of an annular gap 19 relative to the toroidal surface 14 of the aerating chamber 11. In the cone-shaped surface of the azuring chamber 11 there are holes 12 in which the nozzles 16 are mounted. The regulator 7 is connected by a system of levers with a check valve 5, vtolnen cone-shaped and disposed in the nozzle 8 with an annular adjustable gap 18, 1 h, n. f-ly, 1 ill. i (L

Description

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The invention relates to the industrial - pneumatic transport of high ends. The resistance of bulk materials, in particular to feeds of aerosol transport installations.

The goal invented - reducing energy intensity.

The drawing shows a pneumatic installation for transporting bulk material

I The installation contains a loading 1 and I mixing 2 chambers connected by a mw of a horizontally mounted horizontal cylindrical casing 3 with a driving screw 4 installed in it, a pivotal check valve 5 mounted on the output end of the casing 3iH by means of levers 6 connected to regulator 7 supplying compressed air to the upstream discharge nozzle 8; mixing chamber 2; Coaxially fitting | g 8 vertically installed discharge port 9 with a conical suction side 10. Under the mixing chamber 2. there is an aeration chamber 11, with communicating with a source of compressed air and with chamber 2 by means of an opening 12, the upper wall 13 of the aerating chamber 11 is formed by sections with a toroidal 14 facing outwards the surface symmetrically located relative to the axis of the conical intake nozzle 10, and The surface is an ISj oriented vertex upwards. In the surface 15, holes 12 are made and nozzles 16 are placed in them. The smaller base of the cone-shaped surface 15 is connected to the side wall 17 of the aerating chamber 11 ,.

The regulator 7 is made in the form of a cone with its top facing up and once

placed in nozzle gap

8 with ring control

18, The conical intake nozzle 10 is made with an inner surface in the shape of a Venturi nozzle with the formation of an annular gap 19 relative to the toroidal 14 surface of the aerial guide chamber 11, the Toroidal 14 surface is covered with fluoroplastic 20,

The installation works in a clean way.

 the material enters the loading chamber .1J by turns of the screw 4 through the cylindrical body 3, overcoming the resistance of the check valve 5, enters the mixing chamber

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Q 5 o measure 2, and then to the surface 14. Simultaneously with the rotation of the lever 6 of the figurative valve 5, the regulator 7 through the system of levers 21-23 leaves the central flow nozzle 8, ensuring the necessary air flow is proportional to the amount of incoming bulk material. The compressed air is supplied to the aerator by means of the inlet chamber P through the nozzle 24, and from there to the nozzles 16 of the cone-shaped surface 15 and the central discharge nozzle 8. Due to the compressed air leaving the nozzles 16, the bulk material, EoT, is brought to a pseudo-liquefied state due to the discharge created by the central flow nozzle 8, enters the inner part of the intake nozzle 10, where, under the action of the concentration of the flow, it is focused and the air mixture is further transported along the material , much greater speed in the intake of the receiving nozzle. In order to reduce the wall effect, i.e. reducing the friction forces of the material about the concave walls of the air chamber, the latter are covered with fluoroplastic F-4, the planes of which smoothly pass into the outer surface of the central nozzle 8.

Claims (2)

1. Pneumatic installation for transporting bulk material containing loading and mixing chambers interconnected horizontally. Installed cylindrical housing with a driving screw placed in it, rotary non-return valve mounted on the output end of the cylindrical core, and using a lever connected to the compressed air supply regulator in the upward flow nozzle of the mixing chamber, with which it is vertical. It is installed vertically. has a discharge nozzle with a cooling outlet Adcom, and placed under the mixing aeration chamber, communicated through the openings C.O. of the mixing chamber and with a source of compressed air, with the fact that, with the aim of us-1 energy intensity, the upper wall of the aeration chamber is formed  314 portions with a toroidal convexity downwards, a surface symmetrically located relative to the axis of the conical intake nozzle with the formation of the said flow nozzle and a conical interface oriented with it, an upwardly oriented top surface in which said apertures for communication with the cavity of the mixing chamber are provided with nozzles and transitional the sections connecting the smaller base of the cone-shaped surface with the side wall of the aerating chamber, while the feed regulator one. The air in the flow nozzle of the mixing chamber is made in the form of a -cone with the tip upwards and placed in the latter with an annular adjustable gap, and the conical intake nozzle is filled with the inner surface in the shape of the Venturi nozzle with the formation of an annular gap relative to the toroidal surface of the aeration chamber. 2. The installation according to claim 1, characterized in that the toroidal surface of the aerating chamber from the side of the mixing chamber is covered with fluoroplastic.