CN211987260U - Multi-medium filter - Google Patents

Abstract

The utility model relates to a multi-media filter, include: the multi-media filter backwashing device comprises a barrel, wherein a plurality of layers of filter media and a backwashing pipeline are arranged in the barrel, and when the backwashing pipeline backwashes the multi-media filter, the multi-layer filter media are divided into a plurality of parts for backwashing in sequence. Furthermore, the number of the backwashing pipelines is two, one backwashing pipeline is used for backwashing the multi-layer filtering medium on one side of the partition plate, and the other backwashing pipeline is used for backwashing the multi-layer filtering medium on the other side of the partition plate. The utility model relates to a many medium filter is at the operation in-process, gets some filtration sectional area during the backwash and carries out the backwash, compares with the water yield when normal backwash, and required backwash water yield can significantly reduce like this, and the backwash is effectual, and the backwash water consumption rate is low, for equipment backwash pump and backwash pipeline sparingly investment.

Description

Multi-medium filter

Technical Field

The utility model relates to a technical field belongs to sewage treatment technical field, concretely relates to multi-media filter.

Background

The multi-medium filter is a process of making high-turbidity water pass through granular or non-granular material with a certain thickness under a certain pressure by using one or several kinds of filter media so as to effectively remove suspended impurities and make the water clear, and the commonly used filter materials include quartz sand, anthracite, manganese sand and the like, and are mainly used for removing turbidity and softening water in water treatment, pre-treatment of pure water and the like, and the turbidity of the effluent can reach below 3 ℃.

After a general multi-media filter operates for a long time, the interior of the multi-media filter is polluted and blocked; especially, the filter blockage of sewers and sandstone sewage occurs more frequently. As shown in the attached figure 1, when the conventional multi-media filter is provided with a backflushing system to flush the multi-media filter, a scheme of flushing all the multi-layer filter media is adopted, so that the backflushing operation cost is high, the backflushing water consumption rate is high, the energy consumption is high, and the requirements of energy conservation and consumption reduction are not met.

To this end, it is desirable to provide a multimedia filter that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-media filter for it is big to solve the backwash water consumption, and the cleaning performance is not good, problem that the running cost is high.

The utility model provides a multi-media filter, which comprises a cylinder body, wherein a plurality of layers of filter media and a backwashing pipeline are arranged in the cylinder body; when the backwashing pipeline backwashes the multi-medium filter, the multi-layer filter medium is divided into a plurality of parts for backwashing in sequence.

The preferable scheme is that a partition plate is arranged in the center of the cylinder body and evenly divides the cylinder body into two parts, and a backwashing pipeline is used for backwashing the multiple layers of filter media on the two sides of the partition plate separately.

Preferably, the backwashing pipeline is provided with two pipelines, one of the pipelines is used for backwashing the multi-layer filter medium on one side of the partition plate, and the other pipeline is used for backwashing the multi-layer filter medium on the other side of the partition plate.

The backwashing pipeline is provided with a plurality of backwashing branch pipes, the backwashing branch pipes are connected with the backwashing pipeline, and when the backwashing branch pipes backwash the multi-media filter, the backwashing branch pipes on one side of the partition plate firstly backwash the multi-layer filter media, and then the backwashing branch pipes on the other side of the partition plate backwash the multi-layer filter media.

In a preferable scheme, the backwashing branch pipes are horizontally arranged in parallel, and the interval distance between the adjacent backwashing branch pipes is equal.

In a preferred scheme, the upper part of the backwashing branch pipe is provided with a plurality of water outlet holes.

In a preferred scheme, a plurality of water outlet holes are uniformly distributed on the backwashing branch pipe.

The utility model provides a many medium filter's beneficial effect does: the center of the cylinder body of the multi-media filter is provided with the partition plate, the cylinder body is uniformly divided into two parts, and about 1/2 filter sectional area is taken for backwashing during backwashing, so that the required backwashing water volume can be greatly reduced to be half of the flow rate during normal backwashing, the backwashing water consumption rate is low, and the investment is saved for equipment backwashing pumps and backwashing pipelines.

Drawings

FIG. 1: the prior art provides a schematic elevation cross-sectional view of a multi-media filter construction.

FIG. 2: the utility model provides a pair of multi-media filter structure's front view section sketch 1.

FIG. 3: the utility model provides a pair of multi-media filter structure's elevation section sketch 2.

FIG. 4: the utility model provides a pair of many media filter's overlook section sketch map.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solution of the present invention and the beneficial effects thereof will be described in detail with reference to the accompanying drawings.

The first embodiment:

as shown in fig. 2, the multi-media filter of the present embodiment includes a cylinder 1, wherein a plurality of layers of filter media 2 and a backwashing pipeline 3 are disposed in the cylinder 1; the center of the barrel body 1 is provided with a partition plate 4, the partition plate 4 uniformly divides the barrel body 1 into two parts, the number of the backwashing pipelines 3 is two, one backwashing pipeline 3 is used for backwashing the multi-layer filtering medium 2 on one side of the partition plate 4, and the other backwashing pipeline 3 is used for backwashing the multi-layer filtering medium 2 on the other side of the partition plate 4. The multi-media filter in the embodiment is provided with the partition plate 4 and the two backwashing pipelines 3, and when backwashing is carried out, one backwashing pipeline 3 is used for backwashing half of the filtering section area of the multi-layer filtering medium 2, so that the required backwashing water volume can be greatly reduced to be half of the flow rate during normal backwashing, the backwashing water consumption rate is low, and the investment is saved for equipment backwashing pumps and backwashing pipelines.

Second embodiment:

as shown in fig. 3 and 4, the multi-media filter of the present embodiment includes a cylinder 1, wherein a plurality of layers of filter media 2 and a backwashing pipeline 3 are arranged in the cylinder 1; the center of the barrel body 1 is provided with a partition plate 4, the partition plate 4 is used for uniformly dividing the barrel body 1 into two parts, a plurality of backwashing branch pipes 7 are arranged on the backwashing pipeline 3, the backwashing branch pipes 7 are connected with the backwashing pipeline 3 and are uniformly distributed at the bottom of the barrel body 1, the backwashing branch pipes 7 are arranged in a mutually parallel horizontal mode, the interval distance between the backwashing branch pipes 7 is equal, a first valve 5 is arranged between the backwashing pipeline 3 and one half of the backwashing branch pipes 7, and a second valve 5 is arranged between the backwashing pipeline 3 and the other half of the backwashing branch pipes 7.

Further, when the backwashing branch pipe 7 backwashes the multi-layer filter, the first valve 5 is opened, the second valve 6 is closed, the backwashing branch pipe 7 on one side of the partition plate 4 is firstly used for backwashing the multi-layer filter medium 2, and after a period of time, the first valve 5 is closed, so that backwashing on the multi-layer filter medium 2 on one side of the partition plate 4 is completed. The second valve 6 is opened and the multi-layer filter medium 2 is backwashed with the backwash branch pipe 7 on the other side of the partition 4.

Furthermore, a plurality of water outlet holes 8 are formed in the upper part of the backwashing branch pipe 7.

Further, the plurality of water outlet holes 8 are uniformly distributed on the backwashing branch pipe 7.

In the multi-media filter in the embodiment, 1/2 filter cross section is taken for backwashing during backwashing, so that the required backwashing water volume can be greatly reduced to be half of the flow rate during normal backwashing, and the backwashing branch pipes 7 which are uniformly distributed can ensure uniform water distribution during backwashing, have good backwashing effect and low backwashing water consumption rate, and save investment for equipment backwashing pumps and backwashing pipelines.

Although the present invention has been described with reference to the above preferred embodiments, it is not intended to limit the scope of the present invention, and various changes and modifications relative to the above embodiments may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (5)

1. A multi-media filter, comprising: the device comprises a barrel, wherein a plurality of layers of filter media and a backwashing pipeline are arranged in the barrel; when the backwashing pipeline is used for backwashing the multi-media filter, the multi-layer filter media are divided into a plurality of parts for backwashing in sequence;

the center of the cylinder is provided with a partition plate, the partition plate uniformly divides the cylinder into two parts, and the backwashing pipeline is used for backwashing the multiple layers of filter media on the two sides of the partition plate separately;

the backwashing device comprises a plurality of backwashing pipelines, a plurality of filter media and a plurality of backwashing pipelines, wherein the backwashing pipelines are connected with the backwashing pipelines, one backwashing pipeline is used for backwashing the multi-layer filter media on one side of the partition plate, and the other backwashing pipeline is used for backwashing the multi-layer filter media on the other side of the partition plate.

2. The multimedia filter according to claim 1, wherein a plurality of backwash branch pipes are provided on the backwash pipeline, the backwash branch pipes are connected to the backwash pipeline, and when the backwash branch pipes backwash the multimedia filter, the backwash branch pipes on one side of the partition plate are used to backwash the multimedia filter, and then the backwash branch pipes on the other side of the partition plate are used to backwash the multimedia filter.

3. The multimedia filter of claim 2, wherein the backwash legs are horizontally disposed in parallel with each other, and the adjacent backwash legs are spaced apart at equal intervals.

4. The multimedia filter of claim 3, wherein the backwash branch pipe is provided at an upper portion thereof with a plurality of water outlet holes.

5. The multi-media filter of claim 4, wherein the plurality of water outlet holes are evenly distributed on the backwash manifold.

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