SU994639A1 - Suction dredger soil intake arrangement - Google Patents

Description

(54) GROUND CONSTRUCTION EARTHING PLANT

one

The invention relates to hydromechanization and is intended to develop soils in underwater fences.

A ground dredger device for dredging is known, including a suction pipe and a myogososovy suction tip. Due to the use of not one, but several suckers, a greater intensity of development and absorption of non-bonded soils is achieved over a large area of production 2.

The disadvantage of this device is the rigidity of its design, in addition, it is ineffective in the development of loose soils with boulder inclusions due to the impossibility of collecting soils adjacent to boulders.

Closest to the proposed technical essence and the achieved result is a soil-collecting device of the dredger, which includes a suction pipe with suction pipes attached to it, made of flexible material with windows, the areas of which increase with distance from the suction pipe, and loose rings 2.

A disadvantage of the known device is the low efficiency of its operation due to the absence of jet pressure.

The purpose of the invention is to increase the efficiency of development of unconnected soils with boulder inclusions by joint mechanical, pressure-jet and erosion effect on the soil.

The goal is achieved by the fact that in the soil-collecting device of the dredge, which includes a suction pipe with suction nozzles attached to it, made of flexible material with 15 windows, the areas of which increase as they move away from the suction pipe and loose rings, each suction nozzle is equipped with water-pressure pipes. flexible hoses with water outlets located around the nozzle, the area of each of the windows increases with distance from the suction pipe, and the loosening rings are installed s on each of the water pipes between the outlets.

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

The device consists of a suction pipe 1, a suction nozzle 2, a suction nozzle 3. The nozzles 3 are made of a flexible material, such as rubber. In the walls of the pipes 3 there are suction windows 4. Water pipes 5 are installed along the pipes 3, connected along the entire length to the pipe 3 and the end to the collector 6 with a water supply pipe 7. In the walls of the pipes 5 there are water outlets 8. Between the windows 8 on the pipes 5 placed loose rings 9 of triangular cross section. The ends of the sleeves 3 and 5 are plugged.

Windows 4 and 8 are made of increasing dimensions as they move away from the suction pipe 1. This is done in order to ensure the same flow of fluid through the windows. Rings 9 are made of a material with high abrasive wear resistance.

The operation of the device is as follows.

A soil collector is lowered into the water area and the dredge is put into operation. A suction pressure is created in the suction pipe 1, which spreads to the suction tip 2. From the cavity of the tip 2, the pressure discharge spreads to the cavity of the nozzle 3, and through the suction ports 4 to the surrounding nozzle 3 of the bottom water area. From the waters there is a flow of water through the window 4 in the pipe 3.

The water pump is activated. Pressure water from the pump through the water supply pipe 7 enters the collector 6, and from it into the water pressure hoses 5. From the hoses 5, pressure water flows through the outlet ports 8 into the surrounding area of the water area.

The device is lowered to the bottom and at the same time the suction pipe is moved in the direction of papilioning. Hoses 3 and 5 lie at the bottom of the bottom. With three hoses 5 on one pipe 3, as shown in FIG. 1 and 2, at least two hoses 5 lie on the ground. When moving along the bottom of the dragging hoses 3 and 5, the soil is excavated and collected. The soil particles are separated from the bottom by the bottom due to their shift by the loose rings 9. The particles are washed out and blown out by the pressure jets of water flowing out of the water outlet windows 8. The third particles are separated from the soil mass by a stream sucked into the windows 4. This looks like a simplified soil development scheme.

Virtually all processes take place simultaneously, in interconnection. Some particles are eroded and weighed by jetting and erosion streams. Others, more firmly connected to the massif, are separated by loose rings, and only after that are they sucked into the windows 4.

Particles separated from the array are sucked into windows 4, from nozzles 3 flow into tip 2, from tip 2 into suction pipe I. At a meeting with a boulder, hoses 3 and 5 flexibly cover it, mechanically and pressure jets separate adjacent particles soil and sucked into the window 4. At the same time, smaller particles of soil are first taken into the windows of small sizes, and at the end - larger 4 windows of the largest sizes. The maximum size of windows 4 is taken not exceeding the size of the 3 Maiecoca bore.

By multiple pulling, the Ylangs develop the soil from the surface to the design elevation in depth. After collecting the soil at the sides of the boulder and in the space between the boulders, to a depth exceeding the height of the boulder, the boulder rolls down into a recess. Gradually, the boulders are at the bottom of the bottom, all the soil around them is selected from the bottom. Papillonization can be taken as a trench, as well as the usual: right to the left and left to the right.

thirty

Claims (2)

1. USSR author's certificate number 178749, cl. E 02 F 3/92, 1964. 2. USSR author's certificate for application number 2900258 / 29-03, cl. E 02 F 3/88, 1980 (prototype). 9 J fug. 2 corner /