SU1182124A1 - Overflow arrangement for suction dredger - Google Patents

Abstract

A PULSE DEVICE, including a telescopic tube and a rod, is different in that, in order to reduce environmental pollution, the top is. A part of the telescopic tube is provided with a buoyant disc, having a hole in the center corresponding to the diameter of the stem of the telescopic tube and made vertical with respect to the stem, while the cross section of the disc is equal to the cross section of the upper part of the telescopic tube. Srig.G.

Description

The invention relates to overflow devices and can be used for underwater mining with dredgers.

The aim of the invention is to reduce environmental pollution.

In FIG. 1 shows a dredger, general view; in FIG. 2 - overflow device, section.

The dredger includes a floating hull 1, soil pumping units 2, suction pipes 3 connected to soil receivers 4 and (ship pressure soil pipes 5, through which the sucked Vodogruntovaya mix 15 enters the ground hold 6, a device for dumping clarified water 7, including vertical telescopic pipe 8, the lower end of which is connected to an opening in the bottom of the hull, rod 9 for lifting, lowering and lowering the upper part of the telescopic pipe, a floating disk 10, consisting of the disk 11 with a hole for the passage of the rod and 9 and 25 of the annular air chamber 12.

In a dredger, the filling process with the rest of the soil goes through a telescopic pipe into the overflow under the bottom of the vessel. The disk 10 is supported in a floating state by the flow of water overflowing into the pipe 8, its vertical position is automatically regulated by the overflow layer, and from lateral movements it is held by the rod 9, along which the disk 10 freely slides. The disk 10 around the entire perimeter, being in constant contact with the variable flow, prevents air from entering the overflow device.

This floating disk at any position of the overflow pipe provides free flow of clarified water into it, but prevents air entrainment into the pipe.

During operation, the vertical position of the disc is automatically adjusted by the flow of water from the hold to the overflow pipe. The disk is protected from lateral movements by a rod through a hole in its center.

At the end of loading and the termination of the overflow process, the lowering disk disk 10 with soil occurs as follows.

First, the water-ground mixture fills the entire capacity of the hold to the overflow level, determined by the position of the upper part of the telescopic pipe 8, then the stage of work with the overflow begins, during which part of the soil settles in the hold from the water-and-ground mixture entering the hold 6; and water flows to the top edge of the telescopic tube.

The proposed design almost completely prevents air saturation of clarified water flowing into the overflow, and the associated increase in the area of turbidity of the reservoir and disruption of the operation of machinery and mechanisms of the earthVNIIIPI Order 6073/28

Branch of PPP Patent * ', Uzhgorod, Project 4,

Claims (1)

ZEM'SNARAD OVERFLOW DEVICE, including a telescopic tube and a rod, characterized in that, in order to reduce environmental pollution, the upper part of the telescopic tube is equipped with a buoyancy disk having a hole in the center corresponding to the diameter of the telescopic tube rod and made with the possibility of vertical movement relative to the rod, while the cross section of the disk is equal to the section of the upper part of the telescopic About the pipe. ίδΙδδΓΤ <rig. 7 1 1182124