CN219128395U - Sand filter with flushing structure - Google Patents

Abstract

The utility model discloses a sand filter with a flushing structure, and relates to the technical field of water treatment. The utility model comprises a filtering container, a sand filtering layer in the container and a flushing component arranged on the filtering container; the filter container comprises a cylinder with a cone structure at the lower end and a box cover hermetically arranged at the upper end of the cylinder; the inside of the cylinder is provided with a water inlet pipe which is coaxially arranged, the upper end of the water inlet pipe extends to the upper end part in the cylinder, and the lower end of the water inlet pipe extends to the lower end part in the cylinder; a conical cover is fixed at the lower end of the water inlet pipe; the flushing component is arranged on the conical barrel structure part at the lower end of the cylinder and is positioned on the upper side of the conical cover; the lower end of the cylinder is hermetically provided with a bottom sealing cover through a bolt; the upper end of the water inlet pipe is fixedly communicated with an annular water tank; the side wall of the annular water tank is fixedly communicated with a water inlet connecting pipe. The utility model can intermittently supply water to the flushing component to flush the lower surface of the sector sand-based water permeable brick arranged below the sand filter layer, thereby ensuring the long-time uninterrupted operation of the sand filter.

Description

Sand filter with flushing structure

Technical Field

The utility model belongs to the technical field of water treatment, and particularly relates to a sand filter with a flushing structure.

Background

The sand filter is used as a water filtering device, and can remove suspended matters in water so as to achieve the aim of cleaning sewage, and is widely applied to sewage treatment due to good filtering effect. The sand filter is a water filtering treatment process which uses natural quartz sea sand with the particle size of 3-5mm as a filter material to intercept suspended matters and other impurities in water, so that sewage is clarified, and the treatment process is simple and effective, economical and practical. In the conventional sand filter, suspended matters in raw water are adsorbed by the surface of a filter material and continuously accumulated in a filter material layer, the pores of the filter material layer are gradually blocked by dirt, the filtering process is required to be stopped for backwashing, and a sand filter device cannot continuously run, so that the treatment efficiency is affected. In order for the sand filter to be able to operate uninterrupted, the present application provides a sand filter having a flushing structure.

Disclosure of Invention

The utility model aims to provide a sand filter with a flushing structure, which is characterized in that flushing is carried out on the lower surface of a fan-shaped sand-based water permeable brick arranged below a sand filtering layer by intermittently supplying water to a flushing component, so that long-time uninterrupted operation of the sand filter is ensured.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a sand filter with a flushing structure, which comprises a filtering container, a sand filtering layer in the container and a flushing component arranged on the filtering container; the filter container comprises a cylinder with a cone structure at the lower end and a box cover hermetically arranged at the upper end of the cylinder; the inside of the cylinder is provided with a water inlet pipe which is coaxially arranged, the upper end of the water inlet pipe extends to the inner upper end part of the cylinder, and the lower end of the water inlet pipe extends to the inner lower end part of the cylinder; a conical cover is fixed at the lower end of the water inlet pipe; the flushing component is arranged on the conical barrel structural part at the lower end of the cylinder, and is positioned on the upper side of the conical cover; the lower end of the cylinder is hermetically provided with a bottom sealing cover through a bolt; the upper end of the water inlet pipe is fixedly communicated with an annular water tank; the side wall of the annular water tank is fixedly communicated with a water inlet connecting pipe, and the water inlet connecting pipe penetrates through the side wall of the cylinder to the outside; the side wall of the cylinder is fixedly communicated with a clear water outlet pipe at the same height; a plurality of supporting vertical plates are fixed between the inner wall of the upper end of the conical barrel structure part of the cylinder and the peripheral side surface of the water inlet pipe; four staggered sector sand-based water permeable bricks are arranged above the supporting vertical plates; the sand filtering layer is arranged above the sand-based water permeable bricks; a plurality of fixed supporting legs are fixed on the peripheral side surface of the cylinder.

As a preferable technical scheme of the utility model, a sewage mixing and discharging pipe is arranged in the water inlet pipe; the lower end of the sewage mixing and discharging pipe extends to the inner bottom of the cylinder; the upper end of the sewage mixing and discharging pipe penetrates through the annular water tank and the tank cover to the outside, and a pipeline valve is arranged on the sewage mixing and discharging pipe; the outer wall of the sewage mixing discharge pipe is welded and fixed with the inner wall of the lower end of the water inlet pipe through a circular ring plate; a plurality of water outlets are arranged on the water pipe wall between the circular ring plate and the supporting vertical plate.

As a preferred technical scheme of the utility model, the flushing assembly comprises a circular ring pipeline; a water inlet joint is arranged on the circular pipeline; the circular pipeline is fixedly communicated with a plurality of branch pipes, the branch pipes penetrate through the outer wall of the lower end of the cylinder to the inside of the cylinder, and the end parts of the branch pipes are provided with high-pressure spray heads.

As a preferable technical scheme of the utility model, a first fan-shaped lap joint part is arranged at the lower half part of one end of the fan-shaped sand-based water permeable brick; the upper half part of the other end of the fan-shaped sand-based water permeable brick is provided with a second fan-shaped lap part which is in lap fit with the first fan-shaped lap part.

The utility model has the following beneficial effects:

the flushing assembly of the utility model adopts an intermittent water supply mode to flush the lower surface of the sector sand-based water permeable brick arranged below the sand filter layer, thereby ensuring the long-time uninterrupted operation of the sand filter, and having simple integral structure, safe and convenient use and suitability for popularization and use.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a sand filter with flushing structure according to the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a schematic axial cross-section of the present utility model.

FIG. 4 is a schematic view of the structure of the present utility model with the cover, sand filter layer and fan-shaped sand-based water permeable bricks removed.

Fig. 5 is a schematic structural view of the sewage mixing discharge pipe.

In the drawings, the list of components represented by the various numbers is as follows:

1-filtering container, 2-sand filtering layer, 3-flushing component, 4-sector sand-based water permeable brick, 5-sewage mixing discharge pipe, 11-cylinder, 12-box cover, 13-water inlet pipe, 14-conical cover, 15-supporting vertical plate, 16-bottom sealing cover, 17-annular water tank, 18-water inlet connecting pipe, 19-clear water outlet pipe, 110-annular plate, 111-water outlet, 112-fixed supporting leg, 31-annular pipeline, 32-water inlet joint, 33-diversion branch pipe, 34-high pressure nozzle, 41-first sector lap joint part and 42-second sector lap joint part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

First embodiment:

referring to fig. 1-4, the present utility model is a sand filter with a flushing structure, comprising a filtering container 1, a sand filtering layer 2 in the container, and a flushing assembly 3 mounted on the filtering container 1; the filter container 1 comprises a cylinder 11 with a cone-shaped structure at the lower end and a box cover 12 hermetically arranged at the upper end of the cylinder 11; a water inlet pipe 13 is coaxially arranged in the cylinder 11, the upper end of the water inlet pipe 13 extends to the upper end part in the cylinder 11, and the lower end of the water inlet pipe 13 extends to the lower end part in the cylinder 11; a conical cover 14 is fixed at the lower end of the water inlet pipe 13; the flushing component 3 is arranged on the conical barrel structure part at the lower end of the cylinder 11, and the flushing component 3 is positioned on the upper side of the conical cover 14; the lower end of the cylinder 11 is hermetically provided with a bottom sealing cover 16 through bolts; the upper end of the water inlet pipe 13 is fixedly communicated with an annular water tank 17; the side wall of the annular water tank 17 is fixedly communicated with a water inlet connecting pipe 18, and the water inlet connecting pipe 18 penetrates through the side wall of the cylinder 11 to the outside; the side wall of the cylinder 11 is fixedly communicated with a clear water outlet pipe 19 at the same height; a plurality of supporting vertical plates 15 are fixed between the inner wall of the upper end of the conical barrel structure part of the cylinder 11 and the peripheral side surface of the water inlet pipe 13; four staggered sector sand-based water permeable bricks 4 are arranged above the plurality of support vertical plates 15; the sand filtering layer 2 is arranged above the sand-based water permeable bricks 4; a plurality of fixed support legs 112 are fixed to the peripheral side surface of the cylinder 11. The sand used by the fan-shaped sand-based water permeable brick 4 is desert high quartz sand, the surface of the quartz sand is covered with a film, and then the film is combined with a resin curing agent into a whole, so that the fan-shaped sand-based water permeable brick 4 has good water permeability and filterability, and can intercept large particulate matters.

A sewage mixing and discharging pipe 5 is arranged in the water inlet pipe 13; the lower end of the sewage mixing and discharging pipe 5 extends to the inner bottom of the cylinder 11; the upper end of the sewage mixing and discharging pipe 5 penetrates through the annular water tank 17 and the tank cover 12 to the outside, and a pipeline valve is arranged on the sewage mixing and discharging pipe 5; the outer wall of the sewage mixing discharge pipe 5 and the inner wall of the lower end of the water inlet pipe 13 are welded and fixed through a circular plate 110; a plurality of water outlets 111 are arranged on the wall of the water pipe 13 between the annular plate 110 and the supporting vertical plate 15.

As shown in fig. 3, the flushing assembly 3 comprises a circular ring conduit 31; the circular pipeline 31 is provided with a water inlet joint 32; a plurality of branch pipes 33 are fixedly communicated with the circular ring pipeline 31, the branch pipes 33 penetrate through the outer wall of the lower end of the cylinder 11 to the inside, and high-pressure spray heads 34 are arranged at the end parts of the branch pipes 33.

As shown in fig. 5, a first fan-shaped lap part 41 is arranged at the lower half part of one end of the fan-shaped sand-based water permeable brick 4; the upper half part of the other end of the fan-shaped sand-based water permeable brick 4 is provided with a second fan-shaped lap part 42 which is in lap fit with the first fan-shaped lap part 41.

The sewage is connected into the water inlet connecting pipe 18, and sequentially carries out sand filtration treatment along the water inlet pipe 13, the water outlet 111, the fan-shaped sand-based water permeable bricks 4 and the sand filter layer 2, and the treated water is discharged from the clear water outlet pipe 19.

Intermittent high-pressure conveying flushing water flow to the flushing assembly 3, flushing the lower surface of the sector sand-based water permeable bricks 4 by a high-pressure nozzle 34 which is used for supplying water at high pressure in a circumferential direction, stripping large-particle impurities from the lower surface of the sector sand-based water permeable bricks 4, and conveying and outputting the particle impurities and high-pressure water upwards from the bottom of the sewage mixing and discharging pipe 5 along with the pressure increase of the cone part at the lower end of the cylinder 11 along with the stripped impurities.

The flushing assembly 3 of the utility model adopts an intermittent water supply mode to flush the lower surface of the sector sand-based water permeable brick 4 arranged below the sand filter layer 2, thereby ensuring long-time uninterrupted operation of the sand filter, and having simple integral structure, safe and convenient use and suitability for popularization and use.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (3)

1. The utility model provides a sand filter with wash out structure, includes filtration container (1), sand filtering layer (2) in the container, its characterized in that:

also comprises a flushing component (3) arranged on the filtering container (1);

the filtering container (1) comprises a cylinder (11) with a cone-shaped structure at the lower end and a box cover (12) hermetically arranged at the upper end of the cylinder (11); a water inlet pipe (13) which is coaxially arranged is arranged in the cylinder (11), the upper end of the water inlet pipe (13) extends to the upper end part in the cylinder (11), and the lower end of the water inlet pipe (13) extends to the lower end part in the cylinder (11); a conical cover (14) is fixed at the lower end of the water inlet pipe (13); the flushing component (3) is arranged on a conical barrel structure part at the lower end of the cylinder (11), and the flushing component (3) is positioned on the upper side of the conical cover (14); the lower end of the cylinder (11) is hermetically provided with a bottom sealing cover (16) through bolts; the upper end of the water inlet pipe (13) is fixedly communicated with an annular water tank (17); a water inlet connecting pipe (18) is fixedly communicated with the side wall of the annular water tank (17), and the water inlet connecting pipe (18) penetrates through the side wall of the cylinder (11) to the outside; a clear water outlet pipe (19) is fixedly communicated with the side wall of the cylinder (11) at the same height;

a plurality of supporting vertical plates (15) are fixed between the inner wall of the upper end of the conical barrel structure part of the cylinder (11) and the peripheral side surface of the water inlet pipe (13); four staggered sector sand-based water permeable bricks (4) are arranged above the supporting vertical plates (15); the sand filtering layer (2) is arranged above the sand-based water permeable bricks (4);

a sewage mixing and discharging pipe (5) is arranged in the water inlet pipe (13); the lower end of the sewage mixing and discharging pipe (5) extends to the inner bottom of the cylinder (11); the upper end of the sewage mixing and discharging pipe (5) penetrates through the annular water tank (17) and the tank cover (12) to the outside, and a pipeline valve is arranged on the sewage mixing and discharging pipe (5); the outer wall of the sewage mixing discharge pipe (5) and the inner wall of the lower end of the water inlet pipe (13) are welded and fixed through a circular plate (110); a plurality of water outlets (111) are formed in the wall of the water pipe (13) between the circular ring plate (110) and the supporting vertical plate (15);

a plurality of fixed supporting legs (112) are fixed on the peripheral side surface of the cylinder (11).

2. A sand filter with flushing structure according to claim 1, characterized in that the flushing assembly (3) comprises a circular ring pipe (31); a water inlet joint (32) is arranged on the circular pipeline (31); a plurality of branch pipes (33) are fixedly communicated on the circular ring pipeline (31), the branch pipes (33) penetrate through the outer wall of the lower end of the cylinder (11) to the inside of the cylinder, and a high-pressure spray head (34) is arranged at the end part of the branch pipe (33).

3. A sand filter with flushing structure according to claim 1, characterized in that the lower half of one end of the fan-shaped sand-based water permeable brick (4) is provided with a first fan-shaped overlap (41); the upper half part of the other end of the fan-shaped sand-based water permeable brick (4) is provided with a second fan-shaped lap part (42) which is in lap fit with the first fan-shaped lap part (41).

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