SU1247450A1 - Debris-trapping arrangement for water intake structure - Google Patents

Description

The invention relates to hydraulic engineering and can be used in devices to prevent the ingress of litter into water receiving structures.

The purpose of the invention is to reduce material consumption.

FIG. 1 is a front view of a trash device; in fig. 2 - the same, top view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 - the same, an embodiment of the grid with an inclination towards the water intake structure; in fig. 5 is a section BB in FIG. 2; in fig. 6 — node I in FIG. 3; in fig. 7 is a view of B in FIG. 6; in fig. 8 - section G-Y in FIG. 7

The device holding the device contains a grid made of horizontal rods 3 in the channel between the foundations 1 and the flatbed 2, the ends of which are fixed to the vertical support walls 5 on the flatbeat 2 at a distance from the foundations 1 parallel to them by means of the brackets 4.

The lattice plane is located vertically (Fig. 3) or at an acute angle to the flybet 2 (Fig. 4).

Guides 6 with a trolley 7 are mounted on the bases 1. The trolley 7 has a drive made in the form of a reversing motor 8, a gearbox 9 and a chain 10 for transmitting movement from the shaft of the gearbox 9 to the wheels of the carriage 7, and the rake 11, the tooth 12 of which is located between rods 3 lattices.

Between the walls 5 and the devices 1 there are devices for removing litter from the water, made in the form of inclined belt conveyors, the tape 13 of each of which is placed on two drums 14. The upper drum 14 is driven, for example, a gear motor 15. The tape 13 is made of perforated plates 16, having on the outer surface of the gripping strips 17 and interconnected by hinges 18. The upper ends of the belt conveyors are located above the device for removal of waste, made in the form of a belt conveyor 19, installed over the pillars.

Devices for removing litter from the water and for removing the litter are turned on and off at the same time automatically.

The detaining device operates as follows.

Water from a water source (not shown) passes between the foundations 1 through a trash device and enters a water intake structure (not shown).

This establishes a certain difference in water levels before and after the grate, due to which water passes

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through the lattice, leaving various debris on it, for example, twigs, plant stems, algae, etc. Since in the belt 13 of the device for removing litter from water there are through holes, the water passes through both branches of the belt 13, and the various litter is retained by that branch which is located on the side of the incident flow.

Thus, the tape 13 functions as an additional grille.

After some time, when, due to the clogging of the grille and tape 13, their capacity decreases and the level difference reaches the maximum permissible value, an automatic device ("e shown) containing, for example, a pressure switch and actuators turns on the engine 8 and the motor gearbox 15. A trolley 7 with a rake 11 begins to move along guides 6 to one or the other side of the channel between the pillars 1. In this case, the rake 11 captures the trash stuck to the grate and shifts it to the end of the grate to such a position when p svalivaets with lattice bars 3 and under the action of gravity and the flow of water passing through the belt 13, falls on its surface.

Since the belt 13 rotates around the drums 14, the debris caught on its surface rises up and is dumped onto the conveyor 19. The rails 17 attached to the plates 16 prevent the litter from slipping back into the water when the rubbish is above the water surface.

At that moment, when the rake 11 has reached the very edge of the rods 3, the automatics switches the engine 8 of the carriage 7 to reverse.

When the carriage 7 moves to the opposite end of the lattice, the rake 11 also collects trash and displaces it to the very end of the rods 3. When the trash begins to fall off the rods 3 of the lattice, the engine 8 automatically switches to reverse, and the carriage 7 with the rake 11 begins to move in reverse direction. The litter transferred by the rake 11 to the location of the second device for extracting the litter from the water rises last to the top and falls on the conveyor 19.

The process of cleaning the grid is repeated several times until the design capacity of the grid and the initial difference in water levels in the channel is restored. After that, the cart 7 with rake 11 automatically stops, the devices for removing litter from water are automatically turned off.

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Claims (2)

1. WATER-CONTAINING DEVICE FOR WATER INTAKE STRUCTURE, containing a grate with horizontal rods placed between the abutments and the flatbet, a litter outlet and guides installed on the abutments with a trolley having a cleaning rake interacting with the grate, and a drive, characterized in that, in order to reduce material-intensive, it is equipped with two vertical support partitions located on the flatboot parallel to the abutments, to which the ends of the lattice rods are attached, and devices for extracting from ode litter placed between the partitions and the abutments and are constructed as inclined conveyor belt, the upper ends of which are located above the device for removal of litter. 2. The device according to π. 1, characterized in that the conveyor belt is made in the form of perforated plates pivotally connected to each other and having gripping bars on the outer surface.