Semi-buried spherical fiber filter

Abstract

The utility model discloses a semi-buried spherical fiber filter which comprises a filter cartridge, and the filter cartridge comprises a cylinder and a conical cylinder; a bottom plate is arranged in the cylinder; a partition plate is arranged on the bottom plate to divide the cylinder above the bottom plate into a filtering area and a backwashing drainage area, a side intercepting plate is arranged on the partition plate, and the filtering area and the backwashing drainage area are communicated with each other through the side intercepting plate; a water distribution plate, a spherical fiber filler and a cushion layer are arranged in the filtering area, and a through hole is formed in the bottom plate below the filtering area; the semi-buried spherical fiber filter further comprises a filter pipeline, the filter pipeline is arranged on the filter cartridge, and the part, below the backwashing drainage pipe, of the semi-buried spherical fiber filter is buried under the ground. According to the utility model, the installation height can be reduced through a semi-buried installation mode, the maintenance is convenient, and filtered clear water is arranged underground and can be prevented from freezing; on the other hand, the spherical fiber filler is used for filtering the sewage, the filter plate is not easy to block, and the treatment efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a half -buried spherical fiber filter. BACKGROUND

[0002] In the village and town type small sewage treatment plant, often use the filter of using gravity filtration, in order to prevent freezing in winter, usually installed in the room. But the height of this kind of filtration equipment is higher, will cause the height of the plant of supporting equipment to increase, thereby increase cost, in addition, because the equipment height is higher, also will bring inconvenience to daily inspection and operation.

[0003] On the other hand, the conventional fiber bundle filter also has the problem of poor filtering effect due to the blocking of the filter plate during filtering.

[0004] Therefore, it is urgent to provide a filter that can reduce the installation height of the equipment, has anti-freezing effect, and can prevent the filter plate from being blocked. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a half -buried spherical fiber filter that can be buried underground, is convenient to overhaul and can also realize heat preservation, for reducing the construction investment of the village and town type small sewage treatment plant and solving the problem of easy blocking of the filter plate of the conventional fiber bundle filter.

[0006] The utility model solves technical problems by adopting the following technical scheme:

[0007] A half -buried spherical fiber filter, comprising a filter cylinder, the filter cylinder comprises a cylinder at the upper part and a conical cylinder connected at the bottom of the cylinder, a bottom plate is arranged in the cylinder, the bottom plate is horizontally arranged at the lower part of the cylinder, a water inlet is further formed on the sidewall of the upper part of the cylinder, a water inlet pipe is arranged in the water inlet,

[0008] A partition plate is arranged on the bottom plate, the partition plate divides the internal space of the cylinder above the bottom plate into a filtering area and a backwashing drainage area, a side intercepting plate is arranged on the partition plate, and the filtering area and the backwashing drainage area are communicated with each other through the side intercepting plate.

[0009] A water distribution plate, spherical fiber filler and cushion layer are arranged in the filtering area, and a through hole is formed in the bottom plate below the filtering area.

[0010] A backwashing drainage pipe is arranged on the sidewall of the cylinder of the backwashing drainage area, and the backwashing drainage pipe is arranged on the sidewall of the cylinder between the side intercepting plate and the bottom plate.

[0011] The semi-buried spherical fiber filter further comprises a filter pipeline, the filter pipeline comprises a vertical pipe, a clean water outlet pipe and a backwashing inlet pipe, the vertical pipe is vertically arranged in the filter cylinder, and the bottom end of the vertical pipe extends to the bottom of the conical cylinder by penetrating through the water distribution plate, the spherical fiber filler, the cushion layer and the bottom plate in sequence, the backwashing inlet pipe is connected with the upper end opening of the vertical pipe, and the clean water outlet pipe is horizontally arranged above the spherical fiber filler, one end of the clean water outlet pipe is communicated with the vertical pipe, and the other end of the clean water outlet pipe extends to the outside by penetrating through the side wall of the filter cylinder.

[0012] The semi-buried spherical fiber filter is partially buried below the ground.

[0013] Further, the end of the water inlet pipe is obliquely arranged, and the included angle between the center line of the end of the water inlet pipe and the horizontal direction is 30-40°.

[0014] Further, the conical cylinder is provided with a supporting leg.

[0015] Further, the water distribution plate is horizontally arranged at the upper portion of the filter area and is located below the water inlet pipe, and the water distribution plate is uniformly provided with circular holes with a diameter of 3-6 mm.

[0016] Further, the cushion layer is arranged above the bottom plate in the filter area, the cushion layer is paved by goose pebbles with a diameter of 20-30 mm, and the total thickness of the cushion layer is 100-120 mm.

[0017] Further, the spherical fiber filler is arranged above the cushion layer, the spherical fiber filler is formed by placing a plurality of fiber filaments with a length of 40-100 mm side by side to form a thick fiber bundle and then tightening the fiber bundle by a rope.

[0018] Further, the density of the fiber filaments is 1.1-1.2 times the density of water.

[0019] Further, the side intercepting plate between the filter area and the backwashing drainage area is provided with through holes with a diameter of 5 mm, and the thickness of the side intercepting plate is greater than 10 mm.

[0020] Further, the backwashing inlet pipe is provided with a backwashing water discharge electric valve, and the clean water outlet pipe is provided with a clean water outlet electric valve.

[0021] The semi-buried spherical fiber filter has the following beneficial effects: the semi-buried spherical fiber filter can reduce the installation height by the semi-buried installation mode, is convenient to maintain, and the filtered clean water is arranged underground to prevent icing; on the other hand, the spherical fiber filler is used to filter sewage, the filter plate is not easy to be blocked, and the treatment efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1The utility model discloses a half -buried spherical fiber filter's structure diagram.

[0023] Figure 2 The utility model discloses a spherical fiber filler's structure diagram.

[0024] Marked in the drawing shows: 1 - filter cartridge;2 - cylinder;3 - conical cylinder;4 - bottom plate;5 - water inlet pipe;6 - support leg;7 - partition;8 - filtration zone;9 - backwash drainage area;10 - side intercepting plate;11 - water distribution plate;12 - spherical fiber filler;13 - cushion layer;15 - backwash drainage pipe;16 - backwash water discharge electric valve;17 - filter pipeline;18 - standpipe;19 - clean water outlet pipe;20 - backwash inlet pipe;21 - clean water outlet electric valve. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be further described below in combination with the embodiments and drawings.

[0026] As Figure 1 The utility model discloses a half -buried spherical fiber filter, including filter cartridge 1, filter cartridge 1 includes the cylinder 2 of upper part and is connected in the conical cylinder 3 of cylinder 2 bottom, be provided with bottom plate 4 in cylinder 2, bottom plate 2 horizontal arrangement is in cylinder 2 lower part, still be provided with water inlet on the upper part lateral wall of cylinder 2, be provided with water inlet pipe 5 in water inlet. Preferably, cylinder 2 and conical cylinder 3 are integrally formed.

[0027] In this embodiment, the sewage to be treated enters the filter cartridge 1 through the water inlet pipe 5 for filtration. In order to prevent water from splashing and reduce the impact force when draining vertically downward, the end of the water inlet pipe 5 is inclinedly arranged, and the included angle between the center line thereof and the horizontal direction is 30°-40°. The conical cylinder 3 is further provided with a support leg 6, and the filter cartridge 1 can be kept in a vertical state through the support leg 6.

[0028] The bottom plate 4 is provided with a partition 7, which divides the internal space of the cylinder 2 above the bottom plate 4 into a filtration zone 8 and a backwash drainage zone 9. The partition 7 is provided with a side intercepting plate 10, and the filtration zone 8 and the backwash drainage zone 9 are communicated with each other through the side intercepting plate 10.

[0029] The filtration zone 8 is provided with a water distribution plate 11, a spherical fiber filler 12 and a cushion layer 13, and the bottom plate 4 below the filtration zone 8 is provided with a through hole.

[0030] Specifically, the water distribution plate 11 is horizontally arranged at the upper part of the filtration zone 8 and below the water inlet pipe 5. The water distribution plate 11 is uniformly provided with circular holes with a diameter of 3mm-6mm, and the number and size of the circular holes can be set according to the size of the treatment capacity, so as to achieve the purpose of uniform water distribution.

[0031] The cushion layer 13 is arranged above the bottom plate 4 in the filtering area 8, which is paved by goose pebbles with a diameter of 20-30 mm, and the total thickness of the cushion layer 13 is 100-120 mm.

[0032] The spherical fiber filler 12 is arranged above the cushion layer 13, as shown in the figure, which is composed of a plurality of fiber filaments with a length of 40-100 mm. During the manufacturing process, the plurality of fiber filaments are placed side by side to form a thicker fiber bundle, and then a rope is tightened in the middle of the fiber bundle. After tightening, the diameter of the middle of the fiber bundle becomes smaller, and the fiber filaments at both ends are radially spread out, finally forming a fiber ball. Figure 2

[0033] The density of the fiber filaments is 1.1-1.2 times the density of water, so the spherical fiber filler will not float during normal filtration, and due to its own structure, the spherical fiber filler can also be dispersed during backwashing.

[0034] In this embodiment, the sewage to be treated is discharged from the inlet pipe 5 into the filtering area 8, and the water distribution plate 11 receives the inflowing sewage, which is uniformly distributed on the water distribution plate 11 and flows uniformly into the spherical fiber filler 12 through the round holes on the water distribution plate 11. After being filtered by the spherical fiber filler 12, the sewage continues to flow downward into the cushion layer 13, which can prevent the spherical fiber filler 12 from blocking the through holes on the bottom plate, and also serves the purpose of uniform outflow. Finally, the treated sewage is discharged from the cushion layer 12 into the conical cylinder 3.

[0035] The backwashing drainage pipe 15 is arranged on the side wall of the cylindrical body of the backwashing drainage area 9, and the backwashing drainage pipe 15 is arranged on the side wall between the side intercepting plate 10 and the bottom plate 4. The backwashing water discharge electric valve 16 is further arranged on the backwashing drainage pipe 15, so that the backwashing water in the backwashing drainage area 9 can be discharged through the backwashing drainage pipe 15, and controlled through the backwashing water discharge electric valve 16.

[0036] In addition, the side intercepting plate 10 between the filtering area 8 and the backwashing drainage area 9 is provided with through holes with a diameter of 5 mm, and in order to prevent the spherical fiber filler from being hooked when passing through the side intercepting plate during backwashing, the thickness of the side intercepting plate is greater than 10 mm.

[0037] Continuing to refer to Figure 1 ​The semi-buried spherical fiber filter further comprises a filter pipeline 17, the filter pipeline 17 comprises a vertical pipe 18, a clean water outlet pipe 19 and a backwashing inlet pipe 20, the vertical pipe 18 is vertically arranged in the filter cylinder 1, and the bottom end of the vertical pipe 18 extends to the bottom of the conical cylinder 3 through the water distribution plate 11, the spherical fiber filler 12, the cushion layer 13 and the bottom plate 4 in sequence, the backwashing inlet pipe 20 is connected with the upper end opening of the vertical pipe 18, and the clean water outlet pipe 19 is horizontally arranged above the spherical fiber filler 12, one end of the clean water outlet pipe 19 is communicated with the vertical pipe 18, and the other end of the clean water outlet pipe 19 extends to the outside through the side wall of the filter cylinder 1.

[0038] In the embodiment, the bottom end opening of the vertical pipe 18 is an inclined opening, which is beneficial to the water flow and prevents blockage.

[0039] In addition, in order to reduce the installation height of the filter, facilitate on-site operation, reduce the height of the workshop and save investment, the semi-buried spherical fiber filter is partially buried below the ground, and the setting mode can also play a heat preservation role.

[0040] When the semi-buried spherical fiber filter of the utility model is used for filtering, sewage to be treated enters the filter area 8 from the water inlet pipe 5 and then flows into the conical cylinder 3 after being filtered, then the clean water outlet electric valve 21 is opened, and the clean water in the conical cylinder 3 is discharged through the clean water outlet pipe 20; when backwashing is needed, the clean water outlet electric valve 21 is closed, the backwashing water discharge electric valve 16 is opened, the backwashing water pressurized by an external water pump enters through the backwashing inlet pipe 18, enters the conical cylinder 3 through the vertical pipe 19, then passes through the bottom plate 4, the cushion layer 13, the spherical fiber filler 12 and the side intercepting plate 10 in sequence and then enters the backwashing drainage area 9, and then the dirty water after backwashing is discharged to a designated container through the backwashing water drainage pipe 15.

[0041] The sequence of the above embodiments is only for description, and does not represent the advantages and disadvantages of the embodiments.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A semi-buried spherical fiber filter, characterized by, The filter cartridge comprises a cylindrical upper part and a conical cylinder connected to the bottom of the cylindrical part; a bottom plate is arranged in the cylindrical part and horizontally arranged at the lower part of the cylindrical part; a water inlet is arranged on the upper side wall of the cylindrical part, and a water inlet pipe is arranged in the water inlet; A partition plate is arranged on the bottom plate, which divides the internal space of the cylindrical part above the bottom plate into a filtering area and a backwashing drainage area, and a side intercepting plate is arranged on the partition plate, and the filtering area and the backwashing drainage area are communicated with each other through the side intercepting plate; A water distribution plate, spherical fiber filler and a cushion layer are arranged in the filtering area, and a through hole is arranged on the bottom plate below the filtering area; A backwashing drainage pipe is arranged on the side wall of the cylindrical part of the backwashing drainage area, and the backwashing drainage pipe is arranged on the side wall of the cylindrical part between the side intercepting plate and the bottom plate; The semi-buried spherical fiber filter further comprises a filter pipeline, the filter pipeline comprises a vertical pipe, a clean water outlet pipe and a backwashing water inlet pipe, the vertical pipe is vertically arranged in the filter cartridge, and the bottom end of the vertical pipe sequentially penetrates the water distribution plate, the spherical fiber filler, the cushion layer and the bottom plate, and extends to the bottom of the conical cylinder, the backwashing water inlet pipe is connected with the upper end opening of the vertical pipe, and the clean water outlet pipe is horizontally arranged above the spherical fiber filler, one end of the clean water outlet pipe is communicated with the vertical pipe, and the other end of the clean water outlet pipe extends to the outside through the side wall of the filter cartridge; The semi-buried spherical fiber filter is partially buried below the ground.

2. The semi-buried spherical fiber filter according to claim 1, characterized in that, The end of the water inlet pipe is inclined, and the included angle between the center line and the horizontal direction is 30°-40°.

3. The semi-buried spherical fiber filter according to claim 1, characterized in that, The conical cylinder is provided with a supporting leg.

4. The semi-buried spherical fiber filter according to claim 1, wherein, The water distribution plate is horizontally arranged at the upper part of the filtering area and below the water inlet pipe, and the water distribution plate is uniformly provided with circular holes with a diameter of 3mm-6mm.

5. The semi-buried spherical fibrous filter according to claim 1, wherein, The cushion layer is arranged above the bottom plate in the filtering area, and the cushion layer is paved with goose pebbles with a diameter of 20mm-30mm, and the total thickness of the cushion layer is 100mm-120mm.

6. The semi-buried spherical fibrous filter according to claim 1, wherein, The spherical fiber filler is arranged above the cushion layer, and the spherical fiber filler is formed by placing a plurality of fiber filaments with a length of 40mm-100mm side by side to form a thick fiber bundle, and then tightening the fiber bundle with a rope.

7. The semi-buried spherical fibrous filter according to claim 6, characterized in that, The density of the fiber filaments is 1.1-1.2 times the density of water.

8. The semi-buried spherical fibrous filter according to claim 1, wherein, The side intercepting plate between the filtering area and the backwashing drainage area is provided with a through hole with a diameter of 5mm, and the thickness of the side intercepting plate is greater than 10mm.

9. The semi-buried spherical fibrous filter according to claim 1, wherein, The backwashing water inlet pipe is provided with a backwashing water discharge electric valve, and the clean water outlet pipe is provided with a clean water outlet electric valve.

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