CN211987259U

CN211987259U - Quartz sand filter

Info

Publication number: CN211987259U
Application number: CN202020221521.0U
Authority: CN
Inventors: 覃洪振; 王少雄
Original assignee: Guangzhou Hanzhi Liwen Environmental Protection Technology Co ltd
Current assignee: Guangzhou Hanzhi Liwen Environmental Protection Technology Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-11-24
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a quartz sand filter includes: the upper ends of the tank bodies are provided with water inlets and pressure transmitters arranged at the water inlets, the lower ends of the tank bodies are provided with water outlets, the water outlets are respectively connected with a main water inlet pipe and a back flush drain pipe through three-way pipes, the main water inlet pipe is adjacent to the water inlets of the tank bodies and is respectively provided with a first electric control valve, the back flush drain pipe is adjacent to each water inlet of the tank bodies and is respectively provided with a second electric control valve, the water outlets of the tank bodies are respectively connected with a main water outlet pipe through a water outlet branch pipe, each water outlet branch pipe is respectively provided with a; four filter layers filled in the tank body from top to bottom, wherein the filter materials are quartz sand with the thickness of D2-3 mm, D3-6 mm, D6-12 mm and D12-24 mm respectively; the filtering cap assembly comprises a pore plate positioned below the filtering layer and a plurality of water filtering caps arranged on the pore plate. The utility model discloses need not to stop the machine and can realize automatic filtration and back flush to can improve sewage filtration and back flush effect.

Description

Quartz sand filter

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to quartz sand filter.

Background

At the present stage, water treatment receives more and more attention because the quality of water whether can bring great influence to production or daily life, and its influence mostly all can show after a period of time, in other words just the problem of quality of water can only wait until the problem can find the problem. Most of the existing water filters need to be filtered by multiple media, and the media of the multiple media filters are mostly quartz sand. The former water promotes the entering filtration jar body after the booster pump pressure boost, from top to bottom through the filter layer at jar internal, gets rid of the impurity of aquatic through holding back the effect, reaches the filterable effect of sewage.

After the existing pressure filtration works for a period of time, suspended matters are continuously intercepted, and backwashing is required. The advantage of adopting quartz sand filtration lies in that the filter effect is good, the back flush of being convenient for. The back washing period is determined according to the quality of raw water, and the back washing can be put into normal operation. During backwashing, the equipment stops running, a backwashing pump is started, and filtered water is used for backwashing. On one hand, the power of the back washing pump is large, the power consumption is high, on the other hand, a large amount of filtered water is consumed, the discontinuity of filtering operation is caused, and the automatic control program is relatively complex.

The prior art discloses a differential full-automatic back-flushing filter, which is composed of a plurality of filtering compartments in parallel, wherein filtering layers are filled in the filtering compartments, a water inlet is arranged at one side port of each filtering compartment, a water outlet is arranged at the other end of each filtering compartment, and a filtering pump is arranged at the water inlet of each filtering compartment. A filter layer is arranged in the filter compartment, the filter material of the filter layer is natural quartz sand with the thickness of D1-2 mm, and the height of the filter layer is 1500 mm. The filter can automatically change the direction of water flow of outlet water through the filter pump, filter outlet water automatically backflushes any filter compartment therein, and the filter compartment can be automatically put into operation after the backflushing is finished, so that the discontinuity of the filter operation can not be caused. However, in the actual operation process, the backwashing efficiency is low due to the fact that the sizes of the filter materials in the filter layer are D1-2 mm of natural quartz sand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quartz sand filter need not to shut down and can realize automatically filtering and back flush to can effectively improve sewage filter effect and back flush efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

there is provided a quartz sand filter comprising:

the water inlet and the pressure transmitter are arranged at the water inlet, the water outlet is arranged at the lower end of the tank body, the water outlets of the tank bodies are respectively connected with a water inlet main pipe and a back flush drain pipe through a three-way pipe, a first electric control valve is respectively arranged at the water inlet of the water inlet main pipe adjacent to each tank body, a second electric control valve is respectively arranged at the back flush drain pipe adjacent to the water inlet of each tank body, the water outlets of the tank bodies are respectively connected with a water outlet main pipe through a water outlet branch pipe, a third electric control valve is respectively arranged on each water outlet branch pipe, and a fourth electric control valve is arranged on the water outlet main pipe;

the filter layer is arranged in the tank body and comprises a first filter layer, a second filter layer, a third filter layer and a fourth filter layer which are sequentially arranged from top to bottom, wherein a filter material in the first filter layer is quartz sand with the diameter of D2-3 mm, a filter material in the second filter layer is quartz sand with the diameter of D3-6 mm, a filter material in the third filter layer is quartz sand with the diameter of D6-12 mm, and a filter material in the fourth filter layer is quartz sand with the diameter of D12-24 mm;

and the filtering cap assembly comprises a pore plate which is arranged in the tank body and is positioned below the filtering layer and a plurality of water filtering caps which are uniformly arranged on the pore plate.

As a preferable scheme of the quartz sand filter, the height of the first filter layer is 500mm, the height of the second filter layer is 200mm, the height of the third filter layer is 200mm, and the height of the fourth filter layer is 300 mm.

As an optimal selection scheme of a quartz sand filter, every the jar body still includes the connector, the connector has first flange and the second flange that is located its both ends, the diameter of first flange is greater than the diameter of second flange, first flange with the delivery port is connected, the second flange with the jar body corresponds go out water branch connection, compressed air inlet has been seted up on the first flange, the gas vent has been seted up to the upper end of the jar body.

As a preferable scheme of the quartz sand filter, the filter cap component further comprises a support frame, the support frame comprises three support pipes which are arranged at intervals, one end of each support pipe is connected with the bottom of the inner side of the tank body, and the other end of each support pipe is connected with the pore plate.

As a preferred scheme of the quartz sand filter, the filter cap component further comprises three thick-wall pipes positioned below the pore plate, wherein between every two adjacent thick-wall pipes, one end of one of the thick-wall pipes is connected with the inner side wall of the tank body, the other end of the thick-wall pipe is connected with one end, close to the side wall of the tank body, of the other thick-wall pipe, and the three thick-wall pipes are of a triangular structure.

As a preferred scheme of the quartz sand filter, the quartz sand filter also comprises a water distribution pipe arranged in the tank body, wherein the water distribution pipe comprises a water distribution pipe body and a plurality of water distribution holes arranged on the water distribution pipe body at intervals, one end of the water distribution pipe body is connected with the water inlet through a three-way pipe, and the other end of the water distribution pipe body is provided with a plugging cap.

As a preferable scheme of the quartz sand filter, the water distribution pipe body is connected with the upper end of the inner side wall of the tank body through a connecting piece.

As a preferable scheme of the quartz sand filter, a manhole is further arranged at one side of the tank body and adjacent to the lower end of the water distribution pipe; one side of the tank body is positioned above the filter cap assembly, a discharge opening is further formed in the upper portion of the filter cap assembly, and a visual window is further formed in the side wall of the tank body.

The utility model has the advantages that: the utility model discloses utilize the quartz sand as filtering the filtering layer, hold back remaining tiny particle in aqueous, reach the purpose of purification, wherein, the quartz sand that the filter layer adopted four layers of sizes to diminish in proper order from top to bottom can effectively improve filter effect and back flush efficiency. Through setting up a plurality of independent jar bodies, the not interfering of filtration during operation is mutually flexible. When the resistance of the filter layer rises to reach the set pressure or the whole equipment runs for the set time, the water inlet and outlet electric control valves are automatically switched to change the water flow direction, and one or two of the tank bodies are backwashed by using the water outlet of other tank bodies. During backwashing, the equipment does not need to stop running, a backwashing pump does not need to be additionally arranged, the automation degree is high, and the running power consumption is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a side view of a first perspective of a quartz sand filter according to an embodiment of the present invention.

Fig. 2 is a side view of a second viewing angle of a quartz sand filter according to an embodiment of the present invention.

Fig. 3 is a side view of a third perspective of a quartz sand filter in accordance with an embodiment of the present invention.

Fig. 4 is a side view of a can body according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a tank according to an embodiment of the present invention.

Fig. 6 is a schematic bottom view of a filter cap assembly according to an embodiment of the present invention.

Fig. 7 is a schematic side view of a water distributor (without connectors) according to an embodiment of the present invention.

In the figure:

1. a tank body; 1a, a water inlet; 1b, a water outlet; 1c, a compressed air inlet; 1d, an exhaust port; 1e, a manhole; 1f, a discharge opening; 1g, a visible window; 11. a main water inlet pipe; 12. backwashing the drain pipe; 13. a first electrically controlled valve; 14. a second electrically controlled valve; 15. a water outlet branch pipe; 16. a connector; 17. a compressed air input pipe; 18. an exhaust pipe;

2. a filter layer; 21. a first filter layer; 22. a second filter layer; 23. a third filter layer; 24. a fourth filter layer;

3. a filter cap assembly; 31. an orifice plate; 32. a water filtering cap; 33. supporting a tube; 34. a thick-walled pipe;

4. a water distribution pipe; 41. a water distribution pipe body; 42. water distribution holes; 43. a plugging cap; 44. a connecting member.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, the quartz sand filter in the present embodiment includes:

the water supply device comprises a plurality of tank bodies 1, wherein the upper ends of the tank bodies 1 are provided with water inlets 1a and pressure transmitters arranged at the water inlets 1a, the lower ends of the tank bodies 1 are provided with water outlets 1b, the water outlets 1b of the tank bodies 1 are respectively connected to a main water inlet pipe 11 and a back flush drain pipe 12 through a three-way pipe, the main water inlet pipe 11 is respectively provided with a first electric control valve 13 adjacent to the water inlet 1a of each tank body 1, the back flush drain pipe 12 is respectively provided with a second electric control valve 14 adjacent to the water inlet 1a of each tank body 1, the water outlets 1b of the tank bodies 1 are respectively connected to a main water outlet pipe through a branch water outlet pipe 15, each branch water outlet pipe 15 is respectively provided with a third electric control valve, and the main water outlet pipe is provided;

the filter layer 2 is arranged in the tank body 1, the filter layer 2 comprises a first filter layer 21, a second filter layer 22, a third filter layer 23 and a fourth filter layer 24 which are sequentially arranged from top to bottom, the filter material in the first filter layer 21 is quartz sand with the diameter of D2-3 mm, the filter material in the second filter layer 22 is quartz sand with the diameter of D3-6 mm, the filter material in the third filter layer 23 is quartz sand with the diameter of D6-12 mm, and the filter material in the fourth filter layer 24 is quartz sand with the diameter of D12-24 mm;

the filtering cap assembly 3 comprises an orifice plate 31 which is arranged in the tank body 1 and is positioned below the filtering layer 2, and a plurality of water filtering caps 32 which are uniformly arranged on the orifice plate 31.

In this embodiment, the pressure transmitter, the first electronic control valve 13, the second electronic control valve 14, the third electronic control valve, and the fourth electronic control valve are respectively connected to a PLC controller. The first electric control valve 13, the second electric control valve 14, the third electric control valve and the fourth electric control valve are all commercially available and are D971X-10DN 80.

Wherein, the service life of the water filtering cap 32 is more than or equal to 80000h by using the 32-bit low-resistance stainless steel water filtering cap.

This embodiment utilizes quartz sand as filtering layer, holds back the remaining fine particle of aquatic, reaches the purpose of purifying, and wherein, filter layer 2 adopts the quartz sand that four layers of sizes diminish from top to bottom in proper order, can effectively improve filter effect and back flush efficiency. Through setting up a plurality of independent jar bodies 1, the filtering operation is not disturbed each other. When the resistance of the filter layer 2 rises to reach the set pressure or the whole equipment runs for the set time, the water inlet and outlet electric control valves are automatically switched to change the water flow direction, and one or two tank bodies 1 are backwashed by using the water outlet of other multiple tank bodies 1. During backwashing, the equipment does not need to stop running, a backwashing pump does not need to be additionally arranged, the automation degree is high, and the running power consumption is low.

Further, the height of the four filter layers 2 is optimally designed in the embodiment, so that the sewage filtering effect is further improved. Specifically, the height of the first filter layer 21 is 500mm, the height of the second filter layer 22 is 200mm, the height of the third filter layer 23 is 200mm, and the height of the fourth filter layer 24 is 300 mm.

In this embodiment, every jar body 1 still includes connector 16, connector 16 has first flange and the second flange that is located its both ends, the diameter of first flange is greater than the diameter of second flange, first flange with delivery port 1b is connected, the second flange with jar body 1 corresponds go out water branch 15 and connect, compressed air entry 1c has been seted up on the first flange for connect compressed air input tube 17, gas vent 1d has been seted up to the upper end of jar body 1, is used for connecting blast pipe 18, wherein, is equipped with the valve of accessible PLC controller control switching on compressed air input tube 17 and the blast pipe 18 respectively. When the backwashing is carried out, the compressed air input pipe 17 inputs compressed air into the tank body 1, which is beneficial to the smooth operation of the backwashing. After passing through the filter layer 2, the compressed air is discharged through the discharge pipe 18. When compressed air is used for assisting washing, the backwashing strength q of the quartz sand filter of the embodiment is 15-16L/s.m²The filtration rate was 10M/h.

The filter cap component 3 further comprises a support frame, the support frame comprises three support pipes 33 arranged at intervals, one end of each support pipe 33 is connected with the bottom of the inner side of the tank body 1, and the other end of each support pipe 33 is connected with the pore plate 31.

Further, the filter cap component 3 further comprises three thick-wall pipes 34 located below the pore plate 31, two adjacent thick-wall pipes 34, wherein one end of one of the thick-wall pipes 34 is connected with the inner side wall of the tank body 1, the other end of the other thick-wall pipe 34 is connected with one end of the side wall of the tank body 1, and the three thick-wall pipes 34 are in a triangular structure.

The quartz sand filter of the embodiment further comprises a water distribution pipe 4 installed in the tank body 1, wherein the water distribution pipe 4 comprises a water distribution pipe body 41 and a plurality of water distribution holes 42 arranged on the water distribution pipe body 41 at intervals, one end of the water distribution pipe body 41 is connected with the water inlet 1a through a three-way pipe, and the other end of the water distribution pipe body is provided with a blocking cap 43.

The water distribution pipe body 41 is connected with the upper end of the inner side wall of the tank body 1 through a connecting piece 44.

A manhole 1e is also arranged at one side of the tank body 1 and close to the lower end of the water distribution pipe 4; one side of the tank body 1 is positioned above the filter cap component 3, and a discharge opening 1f is further arranged, and a visual window 1g is further arranged on the side wall of the tank body 1.

The number of the tank bodies 1 in the embodiment is five, the five tank bodies 1 are arranged in parallel, one tank body 1 can be backwashed through four tank bodies 1, and the other two tank bodies 1 can be backwashed through three tank bodies 1, which is determined according to actual conditions. The filtering and back flushing of each tank body 1 are automatically controlled by a PLC, and detailed description is omitted. Of course, in other embodiments, the number of the tank bodies 1 is not limited to five, and may be three, four, six or even more. For example, when six tanks 1 are connected in parallel for sewage filtration, the sewage treatment capacity is 20M³/h。

Wherein, the surface of jar body 1 is provided with first anticorrosion structure, and is specifically low, and first anticorrosion structure includes two epoxy anti-rust primer and twice finish. The internal surface of jar body 1 is equipped with the anticorrosive structure of second, specifically hangs down, and the anticorrosive structure of second is the corrosion-resistant rubber of inside lining in jar body 1 internal surface.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. A silica sand filter, comprising:

2. The quartz sand filter of claim 1, wherein the first filter layer has a height of 500mm, the second filter layer has a height of 200mm, the third filter layer has a height of 200mm, and the fourth filter layer has a height of 300 mm.

3. The quartz sand filter of claim 1, wherein each of the tanks further comprises a connector, the connector has a first flange and a second flange at two ends thereof, the diameter of the first flange is greater than that of the second flange, the first flange is connected with the water outlet, the second flange is connected with the water outlet branch pipe corresponding to the tank, the first flange is provided with a compressed air inlet, and the upper end of the tank is provided with an air outlet.

4. The quartz sand filter of claim 1, wherein the filter cap assembly further comprises a support frame comprising three support tubes spaced apart from each other, one end of the support tubes being connected to the bottom of the inside of the tank and the other end being connected to the orifice plate.

5. The quartz sand filter of claim 4, wherein the filter cap assembly further comprises three thick-walled tubes located below the pore plate, and between two adjacent thick-walled tubes, one end of one of the thick-walled tubes is connected to the inner side wall of the tank body, and the other end of the thick-walled tube is connected to one end of the other thick-walled tube close to the side wall of the tank body, and the three thick-walled tubes are in a triangular structure.

6. The quartz sand filter of claim 1, further comprising a water distribution pipe installed in the tank body, wherein the water distribution pipe comprises a water distribution pipe body and a plurality of water distribution holes arranged on the water distribution pipe body at intervals, one end of the water distribution pipe body is connected with the water inlet through a three-way pipe, and the other end of the water distribution pipe body is provided with a plugging cap.

7. The quartz sand filter of claim 6, wherein the water distributor body is connected to the upper end of the inner side wall of the tank body through a connector.

8. The quartz sand filter of claim 6, wherein a manhole is further provided at one side of the tank body adjacent to the lower end of the water distribution pipe; one side of the tank body is positioned above the filter cap assembly, a discharge opening is further formed in the upper portion of the filter cap assembly, and a visual window is further formed in the side wall of the tank body.