SU1283308A1 - Soil intake device of suction dredger - Google Patents

Abstract

The invention is intended for underwater development of soils overgrown with vegetation, and increases the productivity of the soil collecting device of a suction dredger. For this purpose, a screen 8 is fixed on the casing 3, made in the form of two symmetrically 6 planes 9 and 10 located at an angle. To the screen 8 by means of a bracket is attached a conical housing in which the drive is placed. In addition, the knives 2 are installed in a spiral at an acute angle to the radius of the ripper in the form of a screw 1. The device also has a hydraulic system with nozzles installed in the suction tip and oriented in the direction of movement of the pulp. When operating, the plane 9 or 10 of screen 8, depending on the direction of papilioning, bends the plant stems and presses them to the ground. The knives 2 mill the stems together with the ground and the roots and direct the milled mass to the axis of the screw 1. With the last and suction flow, the mass is fed to the handpiece, in which large vegetable and other inclusions are crushed by the knives installed in it. 1 hp ff, 3 ill. 5 10 (L Figure 5

Description

This invention relates to hydromechanization and is intended for underwater development of soils overgrown with vegetation.

The purpose of the invention is to increase productivity.

FIG. 1 shows a soil-collecting device, a view from the front end J in FIG. 2 — section A-A in FIG. 1; in fig. 3 is a section BB in FIG.

The suction dredger consists of a screw 1 with spiral-shaped knives 2 mounted on a blade x of a screw 1 at an acute angle d- to the radius R of a screw, a rotary casing 3 of a semi-cylindrical shape with a drive 4j of the suction tip 5, inside which is mounted ; 7chitel, consisting of fixed knives 6 attached to the tip 5, and movable knives 7 mounted on the end of the auger 1. On top of the suction tip 5 is a console fixed screen 8, made in the form of two symmetrically arranged planes 9 and 1 0, set at an angle to the horizon so that the plant stems after cutting the roots do not float, but slide along the plane 9 or

10k to screw 1 where they are crushed and transported to suction tip 5.

To screen 8 with a bracket

11 attached conical body 12, in which the actuator 13 and the support bearing 14 are located. The conical body 12 is included in the conical part 15 of the shaft 16. The second support bearing 17 is installed in the suction tip 5 on the fixed blades 6 of the shredder. On the suction tip 5 installed hydraulic system, made in the form of an annular channel 18 with nozzles 19, directed

in the direction of the suction.

The device works as follows.

Before operation, the soil collecting device is lowered into the face to a depth equal to or slightly larger than the diameter of the screw 1, depending on the state of the soil being developed. At the same time, the rotating casing 3 is located above the screw 1. Then turn on

pilonazhny mechanism of the soil collecting device, give it a horizontal movement and turn the casing 3 into the desired position by the drive

4 until it stops in the face, blocking the access of the clarified water to the suction tip 5. The plane 9 or 10 of the screen 8, depending on the direction of papilionization, bends the stalks of the plants and presses them to the ground. The spiral-shaped knives 2 mill the stems together with the ground and the roots and guide the milled mass by setting the knives 2 at an acute angle.

cJL to the radius R of the screw, to the axis of the screw 1 and further by the screw 1 and the suction flow are fed to the tip 5. When moving through the chopper, large vegetable and other inclusions

additionally ground by knives 6 and 7.

In case of development of soil with a lack of water for pulping, it is fed under pressure through the annular channel 18 to the nozzles 19, blurred. soil, forming a hydrotransported pulp, and directing it to the dredger.

To develop the next layer, the turning casing 3 is installed in the opposite position and the development is started in the opposite direction.

Claims (2)

Invention Formula 1 o A suction dredger, including a suction tip, auger with a drive blades with knives and a casing, characterized in that, in order to show performance, it is provided with a screen mounted on the casing, and the knives are installed in a spiral at an acute angle to the screw radius, the drive located on the side opposite to the suction tip, and secured to the screen with a bracket 2. The device according to claim 1, characterized in that it is equipped with a hydraulic system with nozzles installed in the suction tip and oriented in the direction of movement of the pulp. ft / 9.f h: i h