RU168874U1 - FILTER FABRIC PLATE DEVICES FOR MECHANICAL WASTE WATER TREATMENT - Google Patents

Abstract

The invention relates to the field of wastewater treatment, in particular to devices for trapping and removing garbage and waste from wastewater. A filter plate of a mechanical wastewater treatment device is proposed, in which two holes are made, from the side of one hole opposite to the other hole, made a protruding part in the form of a sector lying in a plane perpendicular to the holes in the plate, and provided with a hook, the protruding part is made of two parts, the angular ratios of which relative to the straight line passing through the centers of the holes are (2.9-3.1): 2, the hook is made in the smaller part of the sector with the throat facing the holes, and the outside of the hook coincides with the generatrix of the sector, most of which are made with each the side of at least one protrusion, the heights of which correspond to the lengths of the bushings. The plate of the filter cloth of the device for mechanical wastewater treatment with a fixed cloth with a hook, which is made in a smaller part of the sector with a throat facing the holes, and the outer the hook toron coincides with the generatrix of the sector, eliminates the lowering of the delayed debris and its accumulation at the base of the canvas. Moving the cloth allows you to remove this delayed garbage from the filtration zone without using a rake, and bending the cloth allows you to unload the delayed garbage from the hooks and self-cleaning the cloth by ejecting the garbage stuck between the cloth plates, large parts of the sector with protrusions. Filter cloth plate of the device for mechanical wastewater treatment provides stability of parameters

Description

The utility model relates to the field of wastewater treatment, in particular to devices for trapping and removing garbage and waste from wastewater.

Known plate is a flexible thin strip of filter cloth of a device for mechanical wastewater treatment, the length of which is determined by the size of the filter, and is fixed in the frame. The strip is equipped with fixing elements: the lower end of the plate has an opening, and its upper end has end tier spikes located at an angle. A set of flexible thin plates forms a filter cloth cleaned by gear rake mounted on two endless chains mounted on pairs of drive and working gear wheels (RF patent No. 2293065, M. class. C02F 5/14, publ. 10.02.2007).

The disadvantages of these plates are the difficulty of extracting large debris from the water forming “floating islands” in front of the device; the difficulty of providing integrated water purification and the ability of the device to work with a small amount of openings (from 5 mm).

Improving the cleaning of the plates during operation is achieved by performing a bend in the upper part and a set of support ridges with grooves and a second fixing hole (RF patent for utility model No. 122586, M. class. B01D 29/00, publ. 10.12.2012).

Closest to the proposed one is a filter plate of a device for mechanical wastewater treatment, in which two holes are made, in the plate from the side of one hole opposite the other hole, a protruding part in the form of a sector lying in a plane perpendicular to the holes in the plate and provided hook (RF patent No. 2361043, M. CL EV 03/18, publ. 07/10/2009).

A common drawback of these plates of a device for mechanical wastewater treatment is the presence of transverse vibration during operation, which is used for their self-cleaning, but leads to instability of the filtering parameters due to changes in the gaps between the plates and the possibility of trash being stuck between the plates.

The technical result, to which the utility model is directed, is the creation of a filter cloth plate that provides stability of parameters and quality of cleaning.

To achieve this technical result, a filter plate of a device for mechanical wastewater treatment is proposed, in which two holes are made, a protruding part in the form of a sector lying in a plane perpendicular to the holes in the plate is made in the plate from the side of one hole opposite to the other hole, and equipped with a hook, the protruding part is made of two parts, the angular ratios of which are relative to the straight line passing through the centers of the holes (2.9-3.1): 2, the hook is made lower portion of a sector with a throat facing to the holes and the outer side of the hook coincides with a generatrix sector, most of which are made on each side at least one projection, the height of which correspond to the lengths of the sleeves.

The proposed plate of the filter cloth of the device for mechanical wastewater treatment can be manufactured on existing equipment from known materials. Other technical solutions for a similar purpose with a similar set of essential features when conducting a search in the scientific and technical literature and patent documentation were not found by the applicant. Therefore, the applicant believes that the proposal for this application meets the eligibility criteria of the utility model “novelty” and “industrial applicability”.

The essence of the utility model is illustrated by drawings of a non-exclusive example of a plate of a filter cloth of a device for mechanical wastewater treatment.

In FIG. 1 and 2 show the implementation of the plate of the filter cloth of the device for mechanical wastewater treatment, in FIG. 3 is a diagram of a fragment of a filter cloth assembled from plates of a filter cloth; FIG. 4 - various relative positions of the plates of the filter cloth.

In the figures: plate 1, holes 2 and 3, made in the form of bushings - radial single-surface bearing holes, the protruding part in the form of sector 4, which lies in a plane perpendicular to holes 2 and 3 in plate 1, (plate 1 and sector 4 lie in one plane), the greater part 5 of sector 4 and its smaller part 6, straight line 7 passing through the centers of the holes 2 and 3, the angular ratios of parts 5 and 6 of sector 4 are in the range (2.9-3.1): 2, most part 5 of sector 4 is solid, in the smaller part 6 of sector 4 hook 8 is made, yawning horn facing holes 2 and 3 in the plate 1, the outer side of the hook 8 coincides with the generatrix of sector 4. Pos. 9, studs are provided for assembling the filter cloth from the plates, pos. 10 marked the gaps of the filter cloth 1, pos. 11 - protrusions whose heights correspond to the lengths of the bushings of the holes 2 and 3.

Most of the 5 sector 4 provides the rigidity of the hook 8. The specified shape and size ratio are determined from the calculation of the distribution load on the hook 8 and verified experimentally.

The holes 2 and 3 for fixing in the filter cloth are made in the form of sleeves.

The plates of the filter cloth of a device for mechanical wastewater treatment are usually made of impact-resistant plastic, for example acrylonitrile butadiene styrene (ABS plastic).

The filter plate of the mechanical wastewater treatment device is used as an element of the filter cloth of the device for mechanical wastewater treatment, i.e. for filtering solids in liquids. The filter cloth consists of many proposed plates mounted staggered on the studs 9, passed through holes 2 and 3 in the plates. Since each plate of the filter cloth of the device for mechanical wastewater treatment is placed on two studs 9, and the holes 2 and 3 are made in the form of bushings, the filter cloth has flexibility in the planes of the studs 9, so that the plates of the filter cloth of the device for mechanical wastewater treatment can occupy different relative positions, as shown in FIG. 4. The length of the bushings of the holes 2 and 3 provides the size of the gaps 10 of the filter cloth. The design provides rigidity of the web in the plane of the studs 9.

With the filter plate position of the mechanical wastewater treatment device shown in FIG. 1, the cleaned stream enters vertically arranged plates (web) in the direction of the arrow. In this case, the delayed garbage accumulates on the hooks 8. With a stationary canvas, the presence of hooks 8 eliminates the lowering of the delayed garbage and its accumulation at the base of the canvas. Moving the cloth allows you to remove this delayed garbage from the filtration zone without using rakes, and bending the cloth provides different relative positions of the plates of the filter cloth (Fig. 4), which allows you to unload the delayed garbage from hooks 8 and self-cleaning of the cloth by ejecting garbage stuck between the plates 1 of the cloth , in large parts 5 of sector 4 with projections 11.

Plates can be used in various devices for mechanical wastewater treatment of both periodic and continuous action.

The proposed plates are made and successfully tested by the applicant in devices for mechanical wastewater treatment.

Although the present proposal has been demonstrated and described with reference to an embodiment thereof, it will be understood by those skilled in the art that various other changes may be made to it regarding materials, shapes and details, without departing from the essence and scope of this technical solution, as defined below. the formula.

Claims (1)

The filter plate of the mechanical wastewater treatment device, in which two holes are made, in the plate from the side of one hole opposite the other hole, a protruding part in the form of a sector lying in a plane perpendicular to the holes in the plate and provided with a hook, characterized in that the protruding part is made of two parts, the angular ratios of which are relative to the straight line passing through the centers of the holes (2.9-3.1): 2, the hook is made in the smaller part of the sector with the throat, facing to the holes, and the outer side of the hook coincides with the generatrix of the sector, most of which are made on each side of at least one ledge, the heights of which correspond to the lengths of the bushings.

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