SU100372A1 - Coarse grate for sewer stations with a continuous rake - Google Patents

Description

Sewerage stations for the retention of large components of wastewater (sora) are used with gratings with rake apparatuses placed above them, serving 1, for removing the delayed litter with PCHJCTOK.

On existing devices, such removal of delayed litter is incomplete, and part of it is forced through the grate, and the fibrous waves (the particles often remain on the grille. In addition, such devices require considerable floor space to be installed.

The design of the coarse grille allows us to substantially eliminate these drawbacks. This is achieved by the fact that the coarse lattice is made of grate rods not connected by loops and the rake apparatus is installed under the grate. moreover, the rake tooth is placed between the rods and the ends protrude above the grating.

Such a coarse grille design is more compact and reliable in operation and requires less production space to be installed.

ia of FIG. 1 shows a grooved gr. Cross-section of the lattice along the line AA of FIG. 2, in FIG. 2 is also in longitudinal section and in FIG. 3 yes; view of the grille) in front.

The coarse grating consists of an inclined metal frame 1 of the vertical support 2 and the components of the grate itself of several grate metal rods 3, arranged along the frame and not connected by cross links. The lower ends of the rods are rigidly attached to the frame, and the upper ones lie loosely on the drum 4- To ensure unhindered

from the dump of the litter grate, the upper hubs of the rods are bent by the float curve.

Under the rods 3 of the grating there is a rake apparatus consisting of several rake 5 fixed on endless chains 6. The chains are pulled on asterisks, one of which is connected to the electric drive ("shown in the drawing). The rakes are attached to the chains by the ends of their paws 7 so that the teeth of the rake 5 are located between the rods 3, and when the device is working, the teeth move in the gap between the rods from the bottom up.

In order to avoid sagging the chain with a rake when removing relatively heavy objects, support plates 8 are installed at its sides, which are rigidly connected to the frame.

In order to prevent the possibility of pushing the litter under the grate, the ends of the teeth are bent to the side, in order to reverse their movement.

In the process of working grabeliogch; the apparatus of the tooth is picked up and moved upwards along the rods of the debris that has lingered on them and the fibrous components. With the approach to the upper position, the rake teeth go under the grate, and the collected contaminants fall from the bent canopies of the 3 rods / yoke 9, which has a withdrawal JO for drainage from the liquid litter.

PREAMETE OF THE INVENTION

The grille for sewage stations with a continuous rake device designed to remove large components of the waste fluid retained by the grate has been made so that, in order to improve the conditions for removing large and fibrous components, it is made parallel, not connected by cross-section of grate rods, and a rake apparatus is installed under the grate, and a rake is the size of the tooth (between the windows and protrude above the grate.