CN210711049U

CN210711049U - Shallow sand filter with ion exchange fiber layer

Info

Publication number: CN210711049U
Application number: CN201921367881.5U
Authority: CN
Inventors: 张勇
Original assignee: Maanshan Aoke Environmental Protection Science & Technology Development Co ltd
Current assignee: Maanshan Aoke Environmental Protection Science & Technology Development Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-06-09
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar belongs to water purification technical field. The utility model discloses a jar body, the internal portion packing of jar has the packing layer, the packing layer divide into packing layer and packing layer down, should go up the packing layer and be equipped with ion exchange fiber intermediate layer down between the packing layer, ion exchange fiber intermediate layer includes ion exchange fiber, goes up fixed network and fixed network down, ion exchange fiber is located fixed network and fixes between the network down. The utility model discloses a middle part at shallow sand filter is equipped with an ion exchange fiber intermediate layer, is equipped with ion exchange fiber in this ion exchange fiber intermediate layer is inside for purify the purifying effect of improvement water to the ion type pollution factor in the water.

Description

Shallow sand filter with ion exchange fiber layer

Technical Field

The utility model relates to a water purifies technical field, more specifically says, relates to a shallow sand filter of subsidiary ion exchange fiber laminar.

Background

The shallow sand filter is one kind of medium filter and consists of several standard high speed sand cylinder units, and has inside filtering medium to eliminate various suspended matters, microbes and other fine grains in water and to reduce water turbidity and purify water. Common filter media in the prior art include quartz sand, activated carbon, anthracite, manganese sand and the like.

The shallow sand filter in the prior art mainly aims at industrial circulating water, domestic drinking water, community rainwater recovery and the like, mainly filters and treats impurities such as suspended matters in wastewater, but is not ideal in treatment effect on ionic pollution factors such as heavy metals contained in wastewater, namely, the treatment effect on the impurities in the wastewater is limited, so that the water quality range treated by the shallow sand filter is narrow. Further improvements are needed.

Through search, the Chinese patent number ZL 201721852867.5, the invention creation name is: the shallow filter comprises a water distributor communicated with a liquid inlet and arranged in a spherical barrel shell, wherein a first filter layer is arranged below the water distributor and is a pore filter layer; a second filter layer is arranged below the first filter layer, the second filter layer is a quartz sand filter layer provided with a water collector, and the water collector is communicated with the water distributor; a third filter layer is arranged below the second filter layer, the third filter layer is an activated carbon filter layer provided with a water collector, and the water collector is communicated with the liquid outlet; the first filter layer is a concave-convex filter layer formed by connecting a plurality of square pyramid platforms, and filter holes are formed in the square pyramid platforms.

The Chinese patent application No. 201720801923.6, the name of the invention creation is: the utility model provides a shallow sand filter, this application includes that the sphere strains a section of thick bamboo, the sphere is strained and is equipped with water inlet, water-locator, filter material layer, water collecting system and delivery port from top to bottom in proper order in the section of thick bamboo, the water inlet is equipped with sealing device with the junction of pressurized water pipe, the water-locator is located the top that the sphere was strained and is gone into, the filter material layer is garnet layer, the cotton layer of PP, degerming rete, activated carbon layer and supporting layer from top to bottom in proper order, water collecting system includes a plurality of evenly distributed's water collector.

Above-mentioned two contrast patents are through being equipped with a plurality of filter layers in the filter, filter the water through a plurality of filter layers, though a plurality of filter layers can effectively improve the purifying effect of water, but its filter layer mainly be to impurity such as suspended solid in the water, and purifying effect is relatively poor in the water that contains ionic type pollution factor, needs further improvement.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome the problem that the shallow sand filter has poor purifying effect on the water body containing ionic pollution factors in the prior art, and provides a shallow sand filter with an ion exchange fiber layer; the utility model discloses a middle part at shallow sand filter is equipped with an ion exchange fiber intermediate layer, is equipped with ion exchange fiber in this ion exchange fiber intermediate layer is inside for purify the purifying effect of improvement water to the ion type pollution factor in the water.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar, which comprises a tank body, the internal portion packing of jar has the packing layer, the packing layer divide into packing layer and lower packing layer, should go up the packing layer and be equipped with the ion exchange fiber intermediate layer down between the packing layer, the ion exchange fiber intermediate layer includes the ion exchange fiber, goes up the fixed network and fixes the net down, the ion exchange fiber is located the fixed network and fixes between the net down.

As a further improvement of the utility model, activated carbon fibers are arranged between the ion exchange fibers and the upper fixing net.

As a further improvement of the utility model, the aperture of the upper fixing net is smaller than the particle diameter of the filler in the upper filler layer.

As a further improvement, the internal portion of jar is equipped with a supporting network, the side of supporting network links to each other with the internal wall of jar is fixed, and the supporting network is located between packing layer and the last fixed network.

As a further improvement of the utility model, the outside of the tank top is provided with a water inlet, the water inlet is communicated with the water inlet transverse pipe in the tank through a water inlet pipe, the water inlet transverse pipe is communicated with the water distribution pipe, and the water distribution pipe is provided with a water distributor.

As a further improvement of the utility model, the water distributor is equipped with 2 at least, and is equipped with a plurality of water-distributors on every water distributor, and a plurality of water-distributors wait the interval to set up on the water distributor that corresponds.

As a further improvement of the present invention, a back-washing water inlet is provided at the outside of the lower portion of the tank body, and the back-washing water inlet is communicated with a back-washing pipe inside the tank body through a back-washing water inlet horizontal pipe, the back-washing pipe is communicated with a back-washing branch pipe, and a water inlet is provided on the back-washing branch pipe.

As a further improvement of the present invention, the back-washing pipes are provided with at least 2 back-washing branch pipes, and each back-washing pipe is provided with a plurality of back-washing branch pipes, and the back-washing branch pipes located on the same back-washing pipe are symmetrically distributed about the back-washing pipe.

As a further improvement of the utility model, the upper part of the tank body is provided with a back washing outlet pipe, the back washing outlet pipe is communicated with the inside of the tank body, and a control valve is arranged on the back washing outlet pipe positioned at the outside of the tank body.

As a further improvement of the present invention, the ion exchange fiber interlayer further comprises a filling port, and the filling port is disposed on the sidewall of the tank body for replacing the ion exchange fiber.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar, through install an ion exchange fiber intermediate layer between the last packing layer of jar internal portion and the packing layer down, the inside ion exchange fiber that is equipped with of this ion exchange fiber intermediate layer, treat to purify the water when jar internal portion purifies, the packing layer mainly is with the big particulate matter in the water through last, impurity such as suspended solid is detached, purify the ion type pollution factor in the water by ion exchange fiber again, improve the whole purifying effect of water, and simultaneously, make shallow sand filter's application field more extensive.

(2) The utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar is through the particle diameter of packing in control last fixed network and the last packing layer to and be equipped with activated carbon fiber layer between ion exchange fiber and last fixed network, avoid going up the packing in the packing layer or the suspended solid in the water enters into the ion exchange fiber intermediate layer and influences the purifying effect of ion exchange fiber to the water.

(3) The utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar is better in order to guarantee the purifying effect of shallow sand filter, is equipped with a plurality of water-locator in the inside of jar body, and the interval is equipped with a plurality of water-locator on the every water-locator, will treat by the water-locator and purify the water and evenly carry to jar internal portion to even spraying on last packing layer, improve filler and ion exchange fiber's purifying effect.

(4) The utility model discloses a shallow sand filter of subsidiary ion exchange fiber laminar is through being equipped with back flush water inlet pipe in jar body bottom to design the overall arrangement of pipeline, make shallow sand filter when carrying out the back flush, the even jar internal portion that enters into of its backwash liquid sees off the internal portion of jar, and the big particulate matter that lies in the packing of jar internal portion, impurity such as suspended solid follow back flush outlet pipe and see off, makes the filler recycle, improves shallow sand filter's utilization efficiency.

Drawings

FIG. 1 is a schematic structural view of a shallow sand filter with an ion exchange fiber layer according to the present invention;

FIG. 2 is a schematic structural view of an ion exchange fiber sandwich according to the present invention;

FIG. 3 is a schematic structural view of a middle water inlet pipeline of the present invention;

fig. 4 is a schematic structural view of the middle backwashing water inlet pipeline of the utility model.

The reference numerals in the schematic drawings illustrate:

10. a tank body; 11. feeding a filling opening; 12. a lower filling opening; 21. a water inlet; 22. a water inlet horizontal pipe; 23. a water distribution pipe; 24. A water distributor; 31. an upper filler layer; 32. a lower packing layer; 41. a filling port; 42. ion exchange fibers; 43. fixing the net; 44. a lower fixing net; 50. a water outlet; 61. backwashing the water inlet; 62. backwashing the water inlet horizontal pipe; 63. a backwash pipe; 64. Back flushing the branch pipe; 65. backwashing a water outlet; 66. and (4) controlling the valve.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

The shallow sand filter with the ion exchange fiber layer comprises a tank body 10, wherein a filler is filled in the tank body 10 and is used for filtering and purifying a water body to be purified. The shallow sand filter in the prior art adopts quartz sand or activated carbon as a filler in the tank body 10, so that impurities such as large particles, suspended matters and the like in a water body are removed, the purification effect of ionic pollution factors in the water body is poor, and the application field of the shallow sand filter in the prior art is small due to heavy metal ions, calcium ions, magnesium ions and the like in the water body and needs to be further improved.

As shown in fig. 1, in order to solve this problem, the packing layer filled inside the tank 10 is divided into an upper packing layer 31 and a lower packing layer 32, and the packing in the packing layer is one or more of ceramsite, quartz sand, activated carbon, anthracite or manganese sand. In addition, referring to fig. 2, in the present embodiment, an ion exchange fiber interlayer is disposed between the upper packing layer 31 and the lower packing layer 32, and the ion exchange fiber interlayer includes a filling port 41, ion exchange fibers 42, an upper fixing net 43 and a lower fixing net 44, the ion exchange fibers 42 in the present embodiment are located between the upper fixing net 43 and the lower fixing net 44, and the filling port 41 is disposed on the side wall of the tank body 10, and the filling port 41 is communicated with the cavity between the upper fixing net 43 and the lower fixing net 44, so as to facilitate replacement of the ion exchange fibers 42. It should be noted that in this embodiment, the ion exchange fiber 42 can be loaded or unloaded from the loading port 41 by using a clamping tool.

Preferably, in this embodiment, the filler in the upper filler layer 31 is ceramsite and activated carbon, the ceramsite is located on the upper portion of the upper filler layer 31, and the activated carbon is located on the lower portion of the upper filler layer 31; in this embodiment, the lower packing layer 32 uses quartz sand as a packing. Referring to fig. 1, in this embodiment, an upper filling opening 11 and a lower filling opening 12 are formed in a side wall of a tank 10, wherein the upper filling opening 11 is communicated with an inner space of an upper filling layer 31, and is used for filling ceramsite and activated carbon into the upper filling layer 31; the lower filling opening 12 communicates with the inner space of the lower filling layer 32, and is used for filling the quartz sand into the inner part of the lower filling layer 32.

In addition, in this embodiment, a supporting net is disposed inside the tank 10, which is not shown in the drawings, and is used for supporting the filler in the upper filler layer 31, so as to prevent the filler in the upper filler layer 31 from pressing the ion exchange fiber interlayer under the action of gravity to cause deformation of the ion exchange fiber interlayer. The side edge of the support net in this embodiment is fixedly connected with the inner wall of the tank body 10, that is, the edge of the support net is fixedly connected with the inner wall of the tank body 10, and preferably, the support net can be connected with the inner wall of the tank body 10 by welding. In this embodiment, two slots are circumferentially formed on the inner wall of the tank 10 for fixing the upper fixing net 43 and the lower fixing net 44, respectively.

It should be noted that the pore diameter of the upper fixing net 43 in this embodiment is set to be smaller than the particle diameter of the filler in the upper filler layer 31, so that the filler in the upper filler layer 31 or suspended matters in the water body can be effectively prevented from entering the ion exchange fiber interlayer to damage the ion exchange fibers 42 and affect the purifying effect of the ion exchange fibers 42 on the water body; and meanwhile, the supporting net also plays a role in blocking in the whole process. In addition, the shallow sand filter in this embodiment is mainly directed to a horizontal shallow sand filter.

The shallow sand filter of subsidiary ion exchange fiber laminar of this embodiment, treat that the water that purifies at jar body 10 inside at first through packing layer 31, carry out preliminary purification to the water by haydite and active carbon in the packing layer 31, with the large particulate matter in the water, impurity such as suspended solid is detached, the water that purifies once permeates to carry out deep purification by the ion exchange fiber 42 in the intermediate layer to the ion exchange fiber intermediate layer in to the water pollution factor in the water, purify the water by the quartz sand in lower filler hole 12 again, the water through purifying exports through the delivery port 50 of the outlet pipe of jar body 10 bottom, whole purifying process can effectively improve the whole purifying effect of water, enlarge shallow sand filter's application field. Meanwhile, the whole shallow sand filter device is simple to install and convenient to maintain.

It is worth to be noted that the ion exchange fiber 42 in this embodiment is prepared by introducing one or more complexing groups, such as carboxyl groups and amino groups, having a strong adsorption capacity for the contaminating ions, onto the polyacrylonitrile fiber through chemical synthesis, chelation, and other methods using natural fiber materials, so as to achieve the purpose of removing the contaminating ions quickly and efficiently, and the preparation method is simple and has a low cost. The ion exchange fibers 42 in this embodiment adopt cation exchange fibers, anion exchange fibers or amphoteric ion exchange fibers according to the type of the ionic pollution factors in the water body to be purified, so that the ion exchange fibers 42 have more pertinence and the purification effect is improved.

Example 2

The shallow sand filter with an ion exchange fiber layer is basically the same as that in example 1, and further comprises: in this embodiment, the activated carbon fibers are disposed between the ion exchange fibers 42 and the upper fixing net 43, so as to further improve the water purification effect.

In this embodiment, in order to ensure better purification effect of the shallow sand filter, referring to fig. 1 and fig. 3, a water inlet 21 is disposed outside the tank 10, the water inlet 21 is communicated with a horizontal water inlet pipe 22 inside the tank 10 through a water inlet pipe, the horizontal water inlet pipe 22 is communicated with a water distribution pipe 23, and a water distributor 24 is disposed on the water distribution pipe 23, and the structural design forms a water inlet pipeline for conveying the water to be purified to the inside of the tank 10 for purification.

More specifically, the number of the water distribution pipes 23 is at least 2, and may be 2, 3, or 5 … … as shown in fig. 3, the number of the water distribution pipes 23 in this embodiment is 2, the horizontal water inlet pipe 22 in this embodiment is perpendicular to the water distribution pipes 23 and is located in the middle of the water distribution pipes 23, meanwhile, a plurality of water distributors 24 are provided on each water distribution pipe 23, and the plurality of water distributors 24 are equally spaced on the corresponding water distribution pipe 23. The water to be purified is uniformly conveyed to the water distribution pipes 23 through the water inlet transverse pipe 22, and then is uniformly conveyed to the interior of the tank body 10 through the plurality of water distributors 24, so that the purification effect of the filler and the ion exchange fiber 42 is effectively improved.

Example 3

The shallow sand filter with an ion exchange fiber layer is basically the same as the shallow sand filter in example 2, and further comprises: the number of the water distribution pipes 23 in this embodiment is 3, and the water distribution pipes 23 are communicated with each other through a horizontal water inlet pipe 22.

In addition, referring to fig. 1 and 4, in this embodiment, a backwash water inlet 61 is provided at the outside of the lower portion of the tank 10, the backwash water inlet 61 is communicated with a backwash pipe 63 inside the tank 10 through a horizontal backwash water inlet pipe 62, the backwash pipe 63 is communicated with a backwash branch pipe 64, the backwash branch pipe 64 is provided with a water inlet hole, and each backwash pipe below the tank 10 forms a backwash water inlet pipeline for delivering backwash liquid into the tank 10 to regenerate the packing and improve the utilization rate of the shallow sand filter.

More specifically, at least 2 backwash pipes 63 are provided, and 2, 3 or 5 backwash pipes … … are provided, and each backwash pipe 63 is provided with a plurality of backwash branch pipes 64, the backwash branch pipes 64 on the same backwash pipe 63 are symmetrically distributed about the backwash pipe 63, and the backwash branch pipes 64 on the same backwash pipe 63 are located in the same plane, and the plane is parallel to the horizontal plane.

Preferably, the back-flushing pipe 63 in this embodiment is provided with 2, as shown in fig. 4.

In this embodiment, a back washing water outlet pipe is arranged at the upper part of the tank 10, the back washing water outlet pipe is communicated with the inside of the tank 10, and a control valve 66 is arranged on the back washing water outlet pipe positioned outside the tank 10.

When the shallow sand filter purifies the water to a certain degree, the ion exchange fiber 42 is taken out from the filling port 41, the control valve 66 is opened, meanwhile, the backwash liquid enters from the backwash water inlet 61, the backwash liquid is uniformly conveyed into the tank body 10 through the backwash water inlet pipeline, the backwash liquid moves from bottom to top to convey impurities such as large particles, suspended matters and the like in the packing layer to the backwash water outlet pipe, and the impurities are conveyed out from the backwash water outlet 65 of the backwash water outlet pipe, so that the purpose of regeneration of the packing is achieved, the packing is recycled, and the utilization efficiency of the shallow sand filter is improved. After the regeneration of the filler is finished, new ion exchange fibers 42 are filled in the filling port 41, so that the next purification of the shallow sand filter is facilitated.

It should be noted that the ion exchange fibers 42 taken out in this embodiment can be treated in a centralized manner to recover the ions therein, so as to improve the resource utilization rate, and meanwhile, the ion exchange fibers 42 can be regenerated and activated to improve the utilization rate and reduce the production cost. In addition, back flush outlet pipe way and inlet tube separately set up in this embodiment, for a shared pipeline among the prior art, avoid the impurity that the backwash liquid brought out to remain in the pipeline, when carrying out next water purification, impurity enters into jar body 10 inside again to cause the problem of shallow sand filter outlet water secondary pollution.

Furthermore, the control valve 66 of the shallow sand filter of this embodiment can be set as an automatic control valve without considering the cost, and the backwash liquid is ion exchange fiber regeneration liquid, and the specific process of backwash is as follows:

when backwash liquid passes through the backwash water inlet pipe 62 and the backwash pipe 63 from bottom to top from the backwash water inlet 61 of the backwash water inlet pipe and then enters the filter through the backwash branch pipe 64, the whole filter is slowly filled, when the pressure in the filter reaches a certain value range, the control valve 66 is automatically opened, and the backwash liquid is automatically discharged from the backwash water outlet pipe; after regeneration is complete, backwash liquid feed is stopped and when the pressure in the filter drops, the control valve 66 will automatically close and stop water discharge.

This embodiment adopts ion exchange fiber 42 and traditional shallow layer sand filter to combine together, under not changing original shallow layer sand filter each item superiority performance and range of application, combine ion exchange fiber 42 high efficiency and strong stable performance in the ion pollution field, when making the water after the processing realize innoxious, also can retrieve the precious metal, and whole device machinery and chemical stability are good, the application method is simple, the economic nature and the feature of environmental protection that use the adsorbent have further been improved, also expand shallow layer sand filter and become diversified and careful water quality filtration system.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides an attach ion exchange fiber laminar shallow sand filter, includes jar body (10), the packing layer has been filled to jar body (10) inside, its characterized in that: the packing layer is divided into an upper packing layer (31) and a lower packing layer (32), an ion exchange fiber interlayer is arranged between the upper packing layer (31) and the lower packing layer (32), the ion exchange fiber interlayer comprises ion exchange fibers (42), an upper fixing net (43) and a lower fixing net (44), and the ion exchange fibers (42) are positioned between the upper fixing net (43) and the lower fixing net (44).

2. The shallow sand filter with ion exchange fiber layers of claim 1, wherein: active carbon fibers are arranged between the ion exchange fibers (42) and the upper fixing net (43).

3. The shallow sand filter with ion exchange fiber layers of claim 1, wherein: the pore diameter of the upper fixing net (43) is smaller than the grain diameter of the filler in the upper filler layer (31).

4. A shallow sand filter with ion exchange fiber layers according to any one of claims 1 to 3, wherein: the support net is arranged in the tank body (10), the side edge of the support net is fixedly connected with the inner wall of the tank body (10), and the support net is positioned between the upper packing layer (31) and the upper fixing net (43).

5. The shallow sand filter with ion exchange fiber layers of claim 4, wherein: the water inlet (21) is arranged outside the upper part of the tank body (10), the water inlet (21) is communicated with a horizontal water inlet pipe (22) inside the tank body (10) through a water inlet pipe, the horizontal water inlet pipe (22) is communicated with a water distribution pipe (23), and a water distributor (24) is arranged on the water distribution pipe (23).

6. The shallow sand filter with ion exchange fiber layers of claim 5, wherein: the number of the water distribution pipes (23) is at least 2, each water distribution pipe (23) is provided with a plurality of water distributors (24), and the plurality of water distributors (24) are arranged on the corresponding water distribution pipes (23) at equal intervals.

7. The shallow sand filter with ion exchange fiber layers of claim 4, wherein: the washing tank is characterized in that a back washing water inlet (61) is formed in the outer portion of the lower portion of the tank body (10), the back washing water inlet (61) is communicated with a back washing pipe (63) in the tank body (10) through a back washing water inlet transverse pipe (62), the back washing pipe (63) is communicated with a back washing branch pipe (64), and a water inlet hole is formed in the back washing branch pipe (64).

8. The shallow sand filter with ion exchange fiber layers of claim 7, wherein: the number of the backwashing pipes (63) is at least 2, each backwashing pipe (63) is provided with a plurality of backwashing branch pipes (64), and the backwashing branch pipes (64) on the same backwashing pipe (63) are symmetrically distributed relative to the backwashing pipe (63).

9. The shallow sand filter with ion exchange fiber layers of claim 8, wherein: the upper part of the tank body (10) is provided with a back washing water outlet pipe which is communicated with the inside of the tank body (10), and the back washing water outlet pipe positioned outside the tank body (10) is provided with a control valve (66).

10. The shallow sand filter with ion exchange fiber layers of claim 1, wherein: the ion exchange fiber interlayer also comprises a filling opening (41), and the filling opening (41) is arranged on the side wall of the tank body (10) and used for replacing the ion exchange fibers (42).