CS231444B1 - Leak-proff gate valve - Google Patents

Abstract

Tight gate valve closure pipelines, hoppers and containers during transport loose materials. The equipment relates to transport manufacturers roads and fittings for bulk materials. The purpose of the invention is to create a tight one a slide gate to prevent it particularly powder-permeable material materials along the guides and on the sides, where the gate valve is serviceable by piping. Watching to reduce energy demands on the slide movement. ' Tight slide valve in guide rails which are unfinished to the closing wall the pipe is tilted at an average angle the natural inclination of the gradient towards the flow direction through the pipe and on the penetration side piping is sealed with a seal.

Description

The invention relates to a tight gate valve for closing pipes and the like in the transport of bulk materials.

All the gate valves used up to now, installed as a shut-off device for pipelines, hoppers, reservoirs, etc., have a leak in the operation with loose materials.

This is because material, especially powdered materials, is released along the slide guides and on the sides where the slide passes through the duct. This results in material loss from the enclosed spaces.

The purpose of the invention is to provide a tight gate valve to prevent material, especially powdered material, from passing along the guide rails and on the sides where the gate valve penetrates the conduit.

This object is achieved according to the invention based on the aforementioned initial features, in that the sealing spool in the guide rails which are not finished to the closure wall of the pipe is inclined at an average angle of natural inclination or flow angle to the flow direction of the pipe. the leak side of the pipe is sealed with a gasket.

The tight gate valve is actuated by a drive unit with limit switches defining the opening and closing rate.

The tight gate valve according to the invention ensures that no leakage of material, especially powdered materials, is possible along the guide rails of the gate valve and on the side where the gate valve penetrates the duct.

The design of the slide valve is inclined with only one pipe passage. The slope of the slide is selected so that it is equal to the average angle of natural inclination of the conveyed masses.

In this design of the slide gate, where the unfinished guide rails to the closing wall are not only fully closed the slide, but at the same time reduce the energy consumption during its opening and closing.

Further details follow from the description of an exemplary embodiment, in which Fig. 1 is a schematic cross-sectional view of a bulk material pipeline with a closed tight spool closure, and Fig. 2 is a view of a bulk material pipeline and a tight spool closure in a power unit closed position.

In FIG. 1, a tight slide 2 is shown in the guide rails 2 inclined at an average angle of natural inclination of the slope 6 relative to the direction of flow of the material g through the conduit. The sealing slide 2 is sealed on the conduit side 2 of the pipe by a gasket 6 and is actuated by the drive unit g.

In Fig. 2 a tight slide 2 is shown ^{in the} guide rails 2 which are not finished to the closing wall 4 of the pipe. The sealing valve 2 is sealed on the passage side 2 of the pipeline.

The opening and closing rate is defined by the limit switches not shown.

Claims (2)

SUBJECT OF THE INVENTION Tight gate valve for closing pipelines for conveying bulk materials, characterized in that it comprises a tightly closed slide (2) mounted in guide rails (3) which are not finished to a pipe closing wall (1) which is inclined at an average angle the natural gradient of the slope (4) with respect to the flow direction of the material (5) through the conduit and sealed on the conduit (7) by the seal (6). Tight gate valve according to claim 1, characterized in that the tight gate valve (2) is provided with a drive unit (8) with limit switches to limit the opening and closing rate.