RU2220010C1 - Air-passage separator for explosive media - Google Patents

Abstract

FIELD: air- passage separators for explosive media; grinding systems; chemical industry; power engineering and construction engineering. SUBSTANCE: proposed air-passage centrifugal separator has convex cover with blades rigidly mounted on it; provision is made for control of movable blades. Rigidly mounted blades are located at angle relative to radial direction and in center in range of blade control angles. EFFECT: enhanced explosion proofness. 2 cl, 2 dwg

Description

The invention relates to air-passage separators for explosive atmospheres mainly for grinding systems and can be used in the chemical, heat and power and construction industries.

Known air passage centrifugal separators containing convex covers designed for operation in explosive atmospheres, with blades rigidly mounted on the covers, as well as with movable blades mounted with the ability to control the flow swirling [1].

However, fixed blades mounted radially do not take into account the effects of swirling flow and do not provide the necessary rigidity in case of explosion hazards.

An increase in the degree of regulation of separation ability is known from the source of information [2]. However, the known solution does not provide the necessary explosion safety.

The closest technical solution, which is taken as a prototype, is a centrifugal separator for explosive atmospheres, including a convex cover with movable blades mounted with the possibility of regulation [3].

The purpose of the invention is to provide greater stiffness of the separator in case of explosion hazard.

This goal is achieved by the fact that in the air-passage centrifugal separator for explosive atmospheres containing a convex cover with movable blades mounted on it with the possibility of regulation and an outlet pipe, rigidly mounted blades are located at an angle to the radial direction.

Moreover, rigidly mounted blades occupy a central position in the range of installation angles of movable adjustable blades.

The invention is illustrated by drawings, where in Fig.1 shows a General view of the separator in section; figure 2 is a view a from figure 1.

The air-passage centrifugal separator for explosive atmospheres has a convex cover 1 with blades 2 rigidly mounted on it and movable blades 3 mounted with the possibility of regulation, the adjustment range of which is indicated by dashed lines 4, and an outlet pipe 5.

The device operates as follows:

The air flow with the separated particles, rising upward, is twisted by adjustable blades 3 and is separated due to the centrifugal effect. The separated stream exits through the outlet 5. The convex lid with blades 2 rigidly mounted on it ensures explosion safety. Moreover, the blades 2 installed at an angle, having a large length and directivity with respect to the flow, create better conditions for explosion safety. In addition, the angled blades 2 provide the ability to separate part of the flow, which increases the degree of regulation of the separation ability of the separator.

The most preferred embodiment is one in which the rigidly mounted blades occupy a central position in the range of angles of installation of the adjustable blades.

Sources of information

1. The patent of Germany No. 3515444, 02 02/15/06 from 04/29/85.

2. USSR patent No. 1436859, 07 07 7/083 dated 06/02/86.

3. SU 1021485 A, B 07 B 7/083, 07/07/1983.

Claims (2)

1. Air-passage centrifugal: separator for explosive atmospheres, containing a convex cover with movable blades mounted with the possibility of regulation, characterized in that the blades are rigidly mounted on the convex cover at an angle to the radial direction. 2. The air-passage separator according to claim 1, characterized in that the rigidly mounted blades occupies a central position in the range of angles of installation of the adjustable blades.

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