CN219231704U - Sand filter with strong erosion resistance - Google Patents

Abstract

The utility model discloses a sand filter with strong erosion resistance, which comprises a shell, a sieve plate, a water separator, a sand layer, a sand disc, a sewage disposal device, a water inlet device, a water outlet device and a back flushing device, wherein the sieve plate is arranged on the shell; the water inlet device is arranged at the outer top of the shell, and the water outlet device and the back flushing device are arranged at the outer bottom of the shell; the water separator, the sieve plate, the sand layer and the sand disc are arranged in the shell cavity from top to bottom; the sieve plate receives water flow falling down by the water separator and is obliquely arranged; the shell outer side wall is provided with the sewage draining device, and an inner hole of the sewage draining device is connected to the bottom end of the sieve plate. The sand filter with strong erosion resistance can solve the defects that the existing sand filter is not erosion resistant and is easy to block to reduce the filtering efficiency.

Description

Sand filter with strong erosion resistance

Technical Field

The utility model relates to the technical field of sand filters, in particular to a sand filter with strong erosion resistance.

Background

The sand filter mainly adopts sand as a filter material, is one of medium filters, has a three-dimensional sand bed, can effectively filter out and retain impurities, can continuously supply water, is suitable for deep well water filtration, agricultural water treatment, pretreatment of various water treatment processes, and the like, and can be used in various places such as factories, rural areas, hotels, schools, gardening fields, water factories, and the like.

The sand filter is the most common and effective filtering equipment for removing impurities in water at home and abroad, a water source is pressurized by a booster pump and then is conveyed into the sand filter, and larger particle impurities such as crushed stone, vegetation seeds and biological residues are usually generated in the water. The high-speed water flow is wrapped up in and is blocked up by large-particle impurity impact filter inner wall, holder and sand stone filler, after long-time use, the wearing and tearing condition appears by the impact part, makes its life shorten, and partial large-particle impurity and sand stone mix together and can lead to whole filter to take place to block up moreover, reduces filtration efficiency.

Therefore, there is a need to develop a sand filter with high erosion resistance against the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a sand filter with strong erosion resistance, which can solve the defects that the existing sand filter is not erosion resistant and is easy to block so as to reduce the filtering efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a sand filter with strong erosion resistance, which comprises a shell, a sieve plate, a water separator, a sand layer, a sand disc, a sewage disposal device, a water inlet device, a water outlet device and a back flushing device, wherein the sieve plate is arranged on the shell; the water inlet device is arranged at the outer top of the shell, and the water outlet device and the back flushing device are arranged at the outer bottom of the shell; the water separator, the sieve plate, the sand layer and the sand disc are arranged in the shell cavity from top to bottom; the sieve plate receives water flow falling down by the water separator and is obliquely arranged; the shell outer side wall is provided with the sewage draining device, and an inner hole of the sewage draining device is connected to the bottom end of the sieve plate.

Further, the inner wall of the shell is provided with a circle of inclined annular flange, the sieve plate is arranged on the annular flange, and one end, close to the sewage disposal device, of the annular flange is lower than one end, far away from the sewage disposal device.

Further, the sieve plate specifically adopts a round hole sieve, and the diameter of the sieve hole of the round hole sieve is 5-10 mm.

Further, the filtering precision of the sieve plate is smaller than that of the sand stone layer.

Furthermore, the inner wall of the shell is provided with an anti-erosion layer, and the anti-erosion layer is formed by adopting an epoxy resin material in a thermal compounding way.

Further, the water separator comprises at least one water separation pipe, the water separation pipe is horizontally arranged at the top of the inner cavity of the shell, at least two water separation holes are formed in the side face of the water separation pipe, and the water inlet end of the water separator is communicated with the water inlet device.

Further, the sand layer is arranged on the sand tray to isolate the sand layer from the clean water.

Compared with the prior art, the utility model has the beneficial technical effects that:

according to the sand filter with strong erosion resistance, the erosion resistant layer is paved on the inner wall of the shell, and is formed by thermal compounding of the epoxy resin material, so that large-particle impurities do not erode the shell, and the service life of the shell is prolonged.

The sieve slope is arranged and the filtration precision is less than the sand stone layer, the sieve is preferential to filter the large granule impurity in the play water, so large granule impurity can be collected temporarily because there is inclination in the waste fitting discharging, has avoided large granule impurity and grit to mix together and can lead to the whole filter to take place to block up the defect that reduces filtration efficiency.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic diagram of a cross-sectional elevation structure of a sand filter of the present utility model with high erosion resistance;

FIG. 2 is a schematic view of the water separator of the sand filter with strong erosion resistance of the utility model;

FIG. 3 is a schematic diagram of a perspective view of a screen plate of a sand filter with high erosion resistance according to the present utility model;

FIG. 4 is a schematic top view of a sand tray of the sand filter of the present utility model with high erosion resistance.

Reference numerals illustrate: 1. a housing; 101. an annular flange; 2. an erosion resistant layer; 3. a sieve plate; 301. a screen plate notch; 302. screening surface; 4. a water separator; 401. a water diversion pipe; 402. a water dividing hole; 5. a sand layer; 6. a sand tray; 7. a sewage disposal device; 701. a blow-down valve; 702. a blow-down pipe; 8. a water inlet device; 801. a water inlet valve; 802. a water inlet pipe; 9. a water outlet device; 901. a water outlet valve; 902. a water outlet pipe; 10. a back flushing device; 1001. a back flushing valve; 1002. and (5) back flushing the pipe.

Detailed Description

The core of the utility model is to provide a sand filter with strong erosion resistance, which can solve the defects that the existing sand filter is not erosion resistant and is easy to block to reduce the filtering efficiency.

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. 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.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "middle," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Referring to the drawings, FIG. 1 is a schematic diagram of a cross-sectional structure of a sand filter with high erosion resistance according to the present utility model; FIG. 2 is a schematic view of the water separator of the sand filter with strong erosion resistance of the utility model; FIG. 3 is a schematic diagram of a perspective view of a screen plate of a sand filter with high erosion resistance according to the present utility model; FIG. 4 is a schematic top view of a sand tray of the sand filter of the present utility model with high erosion resistance.

In one embodiment of the present utility model, as shown in FIGS. 1-3, a strong erosion resistant sand filter, comprising: the device comprises a shell 1, an erosion resistant layer 2, a screen plate 3, a water separator 4, a sand layer 5, a sand disc 6, a sewage disposal device 7, a water inlet device 8, a water outlet device 9 and a back flushing device 10; a water separator 4, a sieve plate 3, a sand layer 5 and a sand disc 6 are arranged in the shell 1 from top to bottom; the screen plates 3 are obliquely arranged; the water inlet device 8 is arranged at the outer top of the shell 1, and the water outlet device 9 and the back flushing device 10 are arranged at the outer bottom of the shell 1; the outer side wall of the shell 1 is provided with a sewage disposal device 7, and an inner hole of the sewage disposal device 7 is connected with the bottom end of the sieve plate 3.

In one embodiment of the present utility model, as shown in fig. 1, a hole is formed in a side wall of a casing 1 and welded with a sewage draining device 7; the inner wall of the shell 1 is welded with a circle of inclined annular flange 101, the sieve plate 3 is arranged on the annular flange 101, the annular flange 101 is flush with the lower edge of a hole in the side wall of the shell 1, one end of the annular flange 101, which is close to the sewage disposal device 7, is lower than one end, which is far away from the sewage disposal device 7, and thus the sieve plate 3 is convenient to position when being arranged.

In a specific embodiment of the present utility model, as shown in fig. 3, the screen plate 3 is a round hole screen, the diameter of the screen hole is 6 mm, and a screen plate notch 301 is formed at the edge of the screen plate and is communicated with the sewage draining device 7. The edges of the screen panels are mounted on the annular flange 101 by means of snap-fit arrangements. In order to facilitate the disassembly and maintenance of the screen deck 3, it is necessary to provide the top of the housing 1 as a flange-connected top cover, which is not shown in the drawings herein for the purpose of expressing the main structure, and the drawings should not be taken as limiting the utility model.

In a specific embodiment of the present utility model, as shown in fig. 1, an erosion resistant layer 2 is uniformly laid on the inner wall of a casing 1, and the erosion resistant layer 2 is formed by thermal compounding of an epoxy resin material.

In a specific embodiment of the present utility model, as shown in fig. 2, the water separator 4 has six water diversion pipes 401 horizontally arranged at the top of the inner cavity of the casing 1, and a plurality of water diversion round holes 402 are symmetrically formed on the left and right sides of the water diversion pipes 401, and the top end of the middle part of the water separator 4 is welded and communicated with the water inlet device 8.

In one embodiment of the present utility model, as shown in fig. 4, small holes are uniformly distributed on the sand disk 6, the small holes are smaller than the diameter of sand, and the sand layer 5 is blocked while the filtered clear water is not blocked from flowing out.

In a specific embodiment of the utility model, as shown in fig. 1, a water separator 4, a screen plate 3, a sand layer 5 and a sand disc 6 are arranged in the inner cavity of the shell 1 from top to bottom.

In one embodiment of the present utility model, as shown in fig. 1, the water inlet device 8 includes: a water inlet valve 801 and a ninety degree bend water inlet pipe 802, the bend extending into the housing 1.

In one embodiment of the present utility model, as shown in fig. 1, the sewage draining device 7 includes: a drain valve 701 and a drain pipe 702, the lower edge of the drain pipe 702 is lower than the sieve plate 3.

In one embodiment of the present utility model, as shown in fig. 1, the water outlet device 9 and the back flushing device 10 together form a three-way pipeline, wherein the water outlet valve 901 and the water outlet pipe 902 are arranged on the right side, and the back flushing valve 1001 and the back flushing pipe 1002 are arranged on the left side.

The utility model relates to a sand filter theory of operation that erosion resistance is strong: in the filtering process, a water inlet valve 801 and a water outlet valve 901 are opened, a sewage discharge valve 701 and a back flushing valve 1001 are closed, water flows into a water separator 4 from a water inlet pipe 802, water flows are dispersed through a water separation pipe 401 and then flow out of a water separation hole 402, wherein large-particle impurities are filtered out by a sieve plate 3 which is obliquely arranged and temporarily collected in a sewage discharge device 7, the water flow continues to downwards pass through a sand stone layer 5 to filter out impurities in the water, and then clear water flows out of a water outlet pipe 902; in the sewage disposal process, the water inlet valve 801 and the back flushing valve 1001 are closed, the sewage disposal valve 701 and the water outlet valve 901 are opened, and then the sieve plate 3 and the sewage disposal pipe 702 are flushed with clean water; and in the back flushing process, the water inlet valve 801 and the water outlet valve 901 are closed, the sewage discharge valve 701 and the back flushing valve 1001 are opened, clean water flows into the inner cavity of the shell 1 from the back flushing valve 1001, the water flow drives the sand layer 5 to float impurities in the sand layer and then flows out of the sewage discharge pipe 702, and the back flushing process is completed until the water flow is clear.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (6)

1. A sand filter with high erosion resistance, characterized in that: comprises a shell (1), a sieve plate (3), a water separator (4), a sand layer (5), a sand disc (6), a sewage discharging device (7), a water inlet device (8), a water outlet device (9) and a back flushing device (10); the water inlet device (8) is arranged at the outer top of the shell (1), and the water outlet device (9) and the back flushing device (10) are arranged at the outer bottom of the shell (1); the water separator (4), the screen plate (3), the sand layer (5) and the sand disc (6) are arranged in the cavity of the shell (1) from top to bottom; the sieve plate (3) receives water flow falling down by the water separator (4) and is obliquely arranged; the outer side wall of the shell (1) is provided with the sewage draining device (7), and an inner hole of the sewage draining device (7) is connected to the bottom end of the sieve plate (3).

2. The erosion resistant sand filter of claim 1 wherein: the utility model discloses a sewage disposal device, including casing (1), ring flange (101) of slope is offered to casing (1) inner wall, sieve (3) are arranged on ring flange (101), ring flange (101) is close to one end of sewage disposal device (7) is than keeping away from one end of sewage disposal device (7) is low.

3. The erosion resistant sand filter of claim 2 wherein: the sieve plate (3) is a round hole sieve, and the diameter of the sieve hole of the round hole sieve is 5-10 mm.

4. The erosion resistant sand filter of claim 1 wherein: an anti-erosion layer (2) is arranged on the inner wall of the shell (1), and the anti-erosion layer (2) is formed by adopting an epoxy resin material in a thermal compounding way.

5. The erosion resistant sand filter of claim 1 wherein: the water separator (4) comprises at least one water separation pipe (401), the water separation pipe (401) is horizontally arranged at the top of the inner cavity of the shell (1), at least two water separation holes (402) are formed in the side face of the water separation pipe (401), and the water inlet end of the water separator (4) is communicated with the water inlet device (8).

6. The erosion resistant sand filter of claim 1 wherein: the sand layer (5) is arranged on the sand disc (6), and the sand layer (5) and the clean water are isolated.

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