SU1355677A1 - Sluice-type feeder of hydraulic conveying system of suction dredger - Google Patents

Abstract

This invention relates to hydromechanization and is intended for excavation. The purpose of the invention is to increase the reliability of the work by preventing jamming. The lock feeder includes sequentially installed loading, lock and pressure chambers (K) 2-4. Between themselves, K 2-4 are communicated by holes with gates 5,6. Seat 8.9 valves 5.6 are made in the form of a longitudinal arch and have elastic pads 10,11. During the development of the soil, the slurry through slurry line 12 enters K 2, where it is clarified and discharged through pipe 14. After K 2 is filled with settling fractions, gate 5 is opened and the soil is reloaded into K 3 and then mixed into K 4. with pressurized water enters the pulpway 16 and is transported to the shore. 1 il. b (L with SP sd O5 | d-b

Description

This invention relates to hydromechanization and is intended for excavation.

The purpose of the invention is to increase the reliability of the operation by preventing jamming of the valves.

The drawing shows the lock feeder, a longitudinal section.

The lock feeder of the hydrotransport system of the suction projectile contains successively mounted on the camera frame: loading 2, lock 3 and pressure 4. Cameras are interconnected with openings with gates 5 and 6 equipped with hydraulic actuator 7. Seat 8 and 9 gates made in the form the longitudinal arch, have elastic pads 10 and 11. In the loading chamber 2 slurry guide 12 is embedded with an ejector soil collecting device 13. In the upper part of the loading chamber there is an outlet with a nozzle 14 for dumping the clarified slurry overboard. In the pressure chamber 4 there is a mixing unit consisting of the inlet pipe 15 and the pressure slurry pipe 16. Water is fed to the ejector and the pressure slurry pipe through pipe 17. The saddles 8 and 9 are facing downward, and the gaskets 10 and 11 are made of elastic material located in the tops of the arches of saddles.

The gateway feeder operates as follows.

Pressure water in a constant mode is fed into the chamber of the ejector and through the mixing unit into the pressure slurry line 16. Both shutters are closed. During the development of the soil, the slurry with the help of an ejector through the slurry line 12 enters the feed chamber 2, where it is clarified through the nozzle 14

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clarified water is dumped overboard. The settling fractions of the soil fill the chamber 2, after which the shutter 5 opens and the ground under the action of gravitational forces is reloaded from the loading chamber 2 into the lock chamber 3. Upon completion of the overload, the shutter 5 closes, the shutter 6 opens and the soil is transferred the pressure lock from the lock chamber to the pressure one. Here, soil particles are mixed with pressurized water, and through the mixing unit enter the slurry line 16 and are further transported to the shore. After the slug chamber is emptied, the shutter 6 is closed, the shutter 5 opens again and the next portion of soil from the loading chamber is reloaded into the lock chamber and then into the pressure chamber. The flaps are made in the form of segmented surfaces moving when closing from bottom to top. The saddles have the shape of a longitudinal arch, under which the ground does not penetrate. Taking into account that at the moment of closure of the closures, the contact edges of the valves are in the underwater space free from the ground, their closing with the saddle occurs practically in pure water.

Claims (1)

Invention Formula A locking feeder of a suction lift hydrotransport system, comprising chambers sequentially interconnected by holes with gates and saddles, characterized in that, in order to increase reliability by preventing seizure of the gates, each saddle is made of a longitudinal arch, the expanding part of the facing down, with a gasket of elastic material located at the top of the arch.