RU212372U1 - Wastewater treatment device from leaves and debris in a storm water inlet with a round storm water inlet - Google Patents

Abstract

The utility model relates to wastewater treatment. A device for cleaning waste water from leaves and debris in a storm water inlet with a round storm water inlet contains an outer flange of a round shape, a container having a cylindrical side water-permeable wall, an upper open end, a lower water-permeable end, and the internal volume of the container, limited by the side wall and ends, is empty. The container is made of mesh woven from a polymer thread, and the flange is made of molded wear-resistant polymer material, integrally connected to the upper open end of the container and provided with handles for moving the device, made of a polymer cable and integrally connected to the flange. The cast flange is made of polyethylene terephthalate, or polyethylene, or polypropylene. The open end of the container is fixed on a steel base rod, bent to fit the inner perimeter of the flange and placed inside the flange. The cast flange is made with a reinforcing embedded bar placed along the outer perimeter inside the flange. The container is made of a mesh woven from a nylon cord. EFFECT: expanding the arsenal of devices for wastewater treatment, increasing the strength of the device. 4 w.p. f-ly, 6 ill.

Description

Application area

The utility model relates to the field of wastewater treatment, namely to filtering devices with external flanges in the upper part of the device, placed inside storm water inlets for cleaning wastewater from leaves and debris, namely, to the road and courtyard network of storm sewers, where round pipes are common. in terms of storm water inlets with round storm water inlets according to the "DK" type GOST 26008-83 Cast iron storm water inlets for wells. Specifications.

Terms used in the present description.

Rain inlets: structures designed to receive wastewater from ground surfaces.

As storm water inlets, we further mean storm water wells or storm water inlets according to GOST 26008-83 Cast iron storm water inlets for wells. Specifications.

Rainwater well - a structure designed to collect and drain water from ground surfaces.

Storm water inlets according to GOST 26008-83 - rain water inlets for wells, consist of a grate and a body, and are designed to receive surface wastewater from streets, courtyards and other territories.

State of the art

Known filter cartridge for purifying water in storm sewers, containing a housing having a side cylindrical wall, upper and lower permeable ends, and also in the upper part of the housing having an external solid flange around the perimeter of the housing and lugs for slinging and moving the filter cartridge, characterized in that the internal volume of the filter cartridge, limited by the side cylindrical wall and permeable ends, is empty, and a grate is placed on its lower permeable end (Utility model patent No. The disadvantage of this filter cartridge is its low capacity for accumulated leaves and debris with a constant resistance.

Known devices for wastewater treatment from suspended solids and oil products, designed for installation in sewer wells (for example, utility model patent No. 131019 (E03F 5/04, published 08/10/2013) [2]. model No. 105320 (E03F 5/04, published 06/10/2011) [3].These known devices are a container or basket with the possibility of water flowing through it.The disadvantage is the complexity of installing the device in the well and removing it from the well due to the absence of a solid flange in the devices along the perimeter of the body and eyelets for its slinging and moving.In addition, the known devices are not intended for installation on a support platform in the hatch of the storm water inlet.

Known filter cartridge for cleaning storm drains from leaves and debris according to the utility model patent No. 207909 (application No. 2021113434, IPC E03F 5/14; B01D 27/08. Published 11/23/2021) [4], containing a housing having a side cylindrical wall , an upper open end, a lower permeable end, an outer solid flange in the upper part of the housing, the internal volume of which, limited by the side cylindrical wall and ends, is empty, characterized in that the side cylindrical wall is made permeable. By narrowing the scope of the filter cartridge to purify water only from leaves and debris and removing the cleaning load (a special case of which is the filter medium) from the filter cartridge, the copyright holder obtained a design that allows cleaning the drain from a large amount of leaves and debris and provides the possibility of less frequent cleaning of this filter cartridge. Thus, due to less frequent cleaning, the service life of the known device increases, which entails requirements for increasing the strength of the device, since it is affected by operating conditions that have a destructive effect on the materials from which the device is made: aggressive sewage environment, corrosion, fluctuations in ambient temperature, atmospheric precipitation, etc. However, the known filter cartridge does not provide constructive means that increase the strength of the device to realize an increased service life of the device.

By the combination of essential features, the filter cartridge for cleaning storm drains from leaves and debris according to the utility model patent No. 207909 [4] is accepted as the closest analogue.

The technical result of the utility model is to expand the arsenal of devices for wastewater treatment from leaves and debris, containing an outer flange and a container with permeable walls, with improved performance properties. The technical problem is to increase the strength of the device for wastewater treatment from leaves and debris, containing an outer flange and a container with permeable walls.

The technical problem is solved by the whole set of essential features of the utility model.

Utility Model Disclosure

The claimed technical result is achieved by the fact that a device for cleaning wastewater from leaves and debris in a storm water inlet with a round storm water inlet, containing a round outer flange, a container having a cylindrical side permeable wall, an upper open end, a lower permeable end, and the internal volume of the container, limited by the side wall and ends, is empty, while the container is made of a mesh woven from a polymer thread, and the flange is made of cast wear-resistant polymer material, is monolithically connected to the upper, open end of the container, and is equipped with handles for moving the device, made of a polymer cable and integrally connected with a flange.

In this case, the cast flange is made of polyethylene terephthalate or polyethylene, or polypropylene.

At the same time, the open end of the container is fixed on a steel base rod, bent to the size of the inner circumference of the flange and placed inside the flange.

At the same time, the cast flange is made with a reinforcing embedded bar placed along the outer circumference inside the flange.

In this case, the container is made of a mesh woven from a nylon cord.

List of figures

Fig. 1 - General view of the claimed device.

Fig. 2 - view A in Fig. 1, top view of the device.

Fig. 3 - section B-B in Fig. 2.

Fig. 4 is view B in FIG. 3.

Fig. 5 is a sectional view of the inventive device installed on a support platform in a rain inlet.

Fig. 6 - view D in Fig. 5.

The proposed drawings illustrate only one preferred embodiment of the utility model, and therefore cannot be considered as limiting the content of the utility model.

List of positions

1 - the claimed device;

2 - flange;

3 - capacity;

4 - side walls of the body;

5 - lower permeable end of the container;

6 - handles;

7 - base rod for container 3;

8 - stiffening element;

9 - connecting seam;

10 - rainwater well;

11 - support platform;

12 - fastener;

13 - storm water inlet.

Implementation of the utility model

The device for wastewater treatment from leaves and debris is designed for installation in storm water inlets with storm water inlets of the "DK" type - a round storm water inlet according to GOST 26008-83. Pig-iron storm water inlets for wells. Specifications [5]. According to GOST, storm water inlets for wells consist of a grate and a body, and are designed to receive surface wastewater from streets, courtyards and other territories.

The claimed device (Fig. 1) contains an outer flange 2 of round shape, integrally connected to the tank 3.

The flange (Fig. 2) is made of a wear-resistant polymer material, for example:

polyethylene terephthalate (PET, PET, PETG, lavsan) - durable, wear-resistant, good dielectric (see Wikipedia. Published on 03.10.2012)

high density polyethylene (low pressure) - HDPE, HDPE, HDPE (High Density Polyethylene) - is a very hard, strong and rigid thermoplastic, widely used for injection and blow molding;

low density polyethylene (high pressure) - LDPE, LDPE, LDPE (Low Density Polyethylene).

Essential properties of all types of polyethylene (HDPE, LDPE, LLDPE):

low density (lighter than water);

very good chemical resistance;

no water absorption;

impermeability to water vapor;

high viscosity, flexibility, extensibility and elasticity in the temperature range from -70 to +100°C;

easy processing by all methods suitable for thermoplastics;

very good weldability (see https://ref.unipack.ru/93 Properties and application of high density polyethylene (HDPE, HDPE), Published 08/07/2011);

polypropylene - harder (abrasion resistant), more heat-resistant than polyethylene, almost does not undergo corrosion cracking (see Wikipedia. Published on 03/12/2007)

and other types of polymers with similar properties.

Flange 2 is integrally connected to the upper, open end of container 3.

The container 3 is made with a cylindrical side permeable wall 4, an upper open end, a lower permeable end 5. The internal volume of the container, limited by the side wall and ends, is empty (Fig. 1).

The container 3 is made of a grid woven from a polymer thread, preferably a nylon cord, and sewn vertically with a seam 9 (Fig. 3).

Capron fiber (kapron is a synthetic polyamide fiber obtained from oil, a product of caprolactam polymerization) is highly durable: a nylon thread with a diameter of 0.1 mm can withstand a weight of 0.55 kg. Along with high strength, nylon fibers are characterized by high wear resistance, resistance to abrasion, and the action of repeated deformation (bends). Nylon fibers do not absorb moisture, so they do not lose strength when wet (see Wikipedia. Published on 12/19/2021).

The open end of the container is fixed on a steel base bar 7, bent to fit the inner circumference of the flange 2 and placed inside the flange (Fig. 2, 4).

Along the outer circumference of the flange, a embedded steel bar 8 is placed inside it to stiffen the structure.

The lower end 5 of the container 3 is made with a closed seam 9.1 connecting the lower edges of the wall. In another version, the lower end of the container can be tied with a nylon rope threaded through the corresponding mesh loops.

Flange 2 is provided with handles 6 for moving the device, made of a polymer cable, mainly nylon, and monolithically fixed ends inside the flange.

Specific Implementation Examples

Example 1. A device 1 for treating wastewater from leaves and debris in a storm water well with a round storm water inlet type "DK" according to GOST 26008-83, containing an external solid flange 2 of a round shape, a container 3 having a cylindrical side permeable wall 4, the upper open end, the lower 5 permeable end, and the internal volume of the container, limited by the side wall and ends, is empty. The container 3 is made of mesh woven from kapron thread. Flange 2 is made of cast polyethylene terephthalate, integrally connected to the upper open end of the container and provided with handles 6 for moving the device, made of nylon cable and integrally connected to the flange. The open end of the container is fixed on a steel base bar 7 bent to fit the inner circumference of the flange and placed inside the flange. The cast flange is made with a reinforcing embedded bar 8, placed along the outer circumference inside the flange.

Example 2. The device is made according to example 1, but the cast flange is made of polyethylene.

Example 3. The device is made according to example 1, but the cast flange is made of polypropylene.

The given examples are not exhaustive, and other embodiments of the utility model are possible without changing its essence and not going beyond the formulas of the utility model.

Work

The mesh is connected by the upper edge with a metal, mainly steel, base bar 7, bent along the inner circumference of the flange, followed by tying the junction with a nylon thread.

Vertically and along the bottom edge, the mesh is sewn with a nylon thread, with the formation of a container 3. It is possible to perform when the network is tied from below with a nylon rope through the eyelets of the network, with the possibility of untying and removing accumulated debris.

The base bar 7 with the edge of the mesh container 3 fixed on it is placed in the mold for casting the flange 2 along the inner circumference of the flange, another steel bar 8 is also laid there, along the outer circumference of the flange, as an embedded part to stiffen the structure. To obtain handles 6, segments of nylon ropes (cables) with knots tied at the ends are placed in the mold with their ends to prevent the handles from pulling out of the flange. A polymer from the above mentioned polymer is poured into the mold under pressure to form the flange. The result is a monolithic device with a solid flange and a mesh container of high strength and reusability.

The resulting device is placed in a storm water inlet 10 with a round storm water inlet 13, installing the flange 2 on the support platform 11. A general sectional view of the device 1 installed in a concrete well of a storm sewer system is shown in Fig. 5.

The support platform 11 in the form of a ring is made of a corner. The linear dimensions of the support platform are consistent with the linear dimensions of the inner diameter of the well 10. The support platform 11 is fastened with a vertical shelf of the corner to the wall of the well with a fastener 12 near the lower end of the storm water inlet body 13. The horizontal shelf of the corner around the circumference forms a support surface for installing a round flange 2 of the device 1 on it (Fig. 6).

It is possible to place the device 1 in the housing of the storm water inlet 13, while the support platform 11 is attached by a vertical shelf of the corner to the inner surface of the wall of the housing of the storm water inlet 13 (not shown).

The rainwater inlet is closed with a grate. Waste water with leaves and debris enters the device 1 from above, limited by a permeable side wall 4 and an open upper end and a permeable lower end 5, while leaves and large debris settle in the tank 3, and the water comes out already cleaned through the mesh cells from the bottom. tank 3 and permeable side wall 4 into the well and discharged from it using an outlet pipe (not shown).

As the container 3 is filled with leaves and debris, the device is removed from the well by the handles 6, the garbage and the device are removed, and with the empty container 3 placed again in the well until further filling. The process of operating the device is repeated. The monolithic design of the claimed utility model and the materials used for its manufacture, which are durable and resistant to environmental influences, ensure the achievement of the claimed technical result.

Thus, the implementation of the device with the design described above provides for the expansion of the arsenal of technical means for this purpose.

Industrial Applicability

The claimed technical solution will find application in the development, manufacture and operation in wastewater treatment systems as a device for purifying water from leaves and debris in storm water wells with round storm water inlets type "DK" in accordance with GOST 26008-83. In the manufacture of the claimed device, available materials, components and equipment are used.

Sources of information

1. Utility model patent No. 176544 Filter cartridge (Application No. 2017127894. IPC B01D 27/00, E03F 5/14, published on 01/23/2018).

2. Utility model patent No. 131019 Device for wastewater treatment from oil products, designed for installation in a sewer well (Application No. 2013114491. IPC E03F 5/04, published on 10.08.2013).

3. Utility model patent No. 105320 Rain collector (options) (Application No. 2010137876. IPC E03F 5/04, published on 10.06.2011).

4. Utility model patent No. 207909 Filter cartridge for cleaning storm drains from leaves and debris (application No. 2021113434, IPC E03F 5/14; B01D 27/08. Published on 11/23/2021) is the closest analogue.

5. GOST 26008-83. Pig-iron rainwater inlets for wells. Specifications.

Claims (5)

1. A device for cleaning wastewater from leaves and debris in a storm water inlet with a round storm water inlet, containing a circular outer flange, a container having a side cylindrical permeable wall, an upper open end, a lower permeable end, and the internal volume of the container, limited by the side wall and ends , empty, characterized in that the container is made of a mesh woven from a polymer thread, and the flange is made of molded wear-resistant polymer material, is integrally connected to the upper open end of the container and is provided with handles for moving the device, made of a polymer cable and integrally connected to the flange. 2. The device according to claim 1, characterized in that the cast flange is made of polyethylene terephthalate or polyethylene, or polypropylene. 3. The device according to claim. 1, characterized in that the open end of the container is fixed on a steel base bar, bent to the size of the inner circumference of the flange and placed inside the flange. 4. The device according to claim. 1, characterized in that the cast flange is made with a reinforcing embedded bar placed along the outer circumference inside the flange. 5. The device according to claim. 1, characterized in that the container is made of a mesh woven from a nylon cord.

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