SU436134A1 - EQUIPMENT FOR EARTH EQUIPMENT - Google Patents

Description

one

The known soil collecting devices of suction dredges, made in the form of different types of tips, including conical with a rotating tube, ensure that the dredge of the soil under development is taken only to the depths limited by the suction capacity of the dredge pumps.

The purpose of the invention is to increase the depth of the development of the soil and to increase productivity by using the pressure effect of the disintegrant.

In the proposed soil collecting device, the disintegrant is made with an additional cylindrical-conical part, on the outer side of which small blades are placed with a slope opposite to the inclination of the outward-facing blades, and a mixing chamber with gripping pockets and entrance windows is mounted on the ground receiving pipe.

The drawing shows the proposed device for harvesting.

The grouting device consists of a disintegrant, mainly of the plow type with spiral-helix surfaces of waste-cutting blades 1 with an additional cylindrical-conical part 2, on the outer side of which small blades 3 are placed with an inclination opposite to the inclination of the blade-cutting blades of a ground-receiving pipe 4 with mixing chamber 5, equipped with winding pockets b and input windows 7 and drive 8. The device is mounted on a lifting frame 9 in bearings 10. The device operates as follows.

The device receives rotation from the actuator 8. The blades 1 bound soil is cut and fed into the nilindro-conical part 2. The sliced and wetted soil blocks from the cylindrical-conical part of the device flow through pipe 4 into the mixing chamber 5. In chamber 5, the soil is mixed with water sucked due to the vacuum from the suction dredger and the low pressure suppressor formed as a result of the water being captured by the pockets 6 of the mixing chamber during its rotation. At the same time, the water filling the cavities of the car-6 vanes slides along the curvilinear surface of the car-vanes taken along the water flow line and enters the receiving windows 7 of the mixing chamber 5. The pockets 6 and the receiving windows 7 are arranged so as to be wetted The soil and water mixtures entered the mixing chamber simultaneously in coincident directions.

In the mixing chamber 5 pulp formation occurs as a result of mixing the flows of water and soil. The slurry enters through the subsequent intermediate pipe of the device to the suction pipe of the suction pump.

Blades 3 are optional accessories that increase the efficiency of the device. Their purpose is to loosen and feed the ground blade 1 when the device spontaneous embedding of the opening head into the ground to a depth exceeding the length of the blade blade 1. In this case, when the blade 3 rotates, the blade having the opposite blade 1 is tilted, loosening soil outside the cutting parts of the blades 1 and the supply of loosened soil to the front end of the device.

In order to avoid the breakthrough of air from the surface of the water into the pockets 6, the mixing chamber is located at a depth of 2-3 m from the water mirror in the pool.

By increasing the suction capacity, it increases the depth of the excavation and the productivity of the dredger.

Subject invention

A suction dredger, including a disintegrant, mainly of a plow type with spiral-helix surfaces of waste-cutting blades, a rotating ground receiving pipe with a drive, characterized in that

The purpose of using the pressure effect of the disintegrant and increasing the depth of the development of the soil, the disintegrant is made with an additional cylindrical-conical part, on the outer side of which small blades are placed with a slope opposite to the inclination of the blade-cutting blades, and a mixing chamber is mounted on the ground-receiving pipe

with exciting pockets and front windows.