CN211847327U

CN211847327U - High-filter-material-layer biological aerated filter convenient to transport

Info

Publication number: CN211847327U
Application number: CN202020234618.5U
Authority: CN
Inventors: 曹昊苏; 张文波; 钟远标; 赵国辉
Original assignee: Suzhou Suchuang Environment Technology Development Co ltd
Current assignee: Suzhou Suchuang Environment Technology Development Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-11-03
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a high filter bed aeration biological filter convenient for transportation, which relates to the technical field of sewage treatment, and comprises a fixed ring and at least 2 high filter bed aeration biological filter modules, wherein the high filter bed aeration biological filter modules are vertical high filter bed aeration biological filters, and each high filter bed aeration biological filter module comprises an air duct, a filter brick layer, a bearing layer, a filter bed and a clear water layer, and the air duct, the filter brick layer, the bearing layer, the filter bed and the clear water layer are sequentially arranged from the bottom of the filter to the top of the filter along the vertical direction; aiming at an integrated high-filter-layer aerated biological filter which is inconvenient to transport, the modular design is adopted to divide the high-filter-layer aerated biological filter into smaller vertical high-filter-layer aerated biological filters, so that the transport is convenient; meanwhile, due to the modular design, the vertical high-filter-bed biological aerated filter is installed in a factory and can be directly used after being transported to the site, so that the construction period is greatly shortened, and the construction difficulty is greatly reduced.

Description

High-filter-material-layer biological aerated filter convenient to transport

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a high filter bed biological aerated filter convenient to transport.

Background

BAF (biological aerated filter) is a brand-new sewage treatment process developed in the 20 th century and 80 th era on the basis of a common biological filter by taking the reference of a water filter process. The first biological aerated filter in the world was put into production in France in 1981 and then widely used in European countries.

The structure of the biological aerated filter is the same as that of a common rapid filter, and the difference is that the lower part and the bottom of the biological aerated filter are provided with an aeration system. The water distribution device can be divided into an upward flow mode and a downward flow mode according to the water flow direction, and an upward flow mode (namely, the gas-water co-flow mode is adopted) is adopted at present, so that the water distribution and the gas distribution are more uniform. Meanwhile, SS intercepted at the bottom can be substituted into the middle upper part of the filter chamber in the water vapor rising process, the pollutant carrying capacity of the filter chamber is increased, and the working period is prolonged.

The filter material is a key part of the biological aerated filter, has direct influence on the efficacy of the biological aerated filter, and simultaneously influences the structural form and the cost of the biological aerated filter. At present, the common filter materials include quartz sand, ceramsite and plastic products (such as synthetic fibers, polystyrene pellets and corrugated plates).

The grain size of the filter material mainly depends on the function of the biological aerated filter. The smaller the grain size of the filter material is, the better the effect of the biological aerated filter is, but the smaller grain size can shorten the working period of the biological aerated filter, the filter material is not easy to clean, and the corresponding quantity of backwash water can be increased, so that various factors are comprehensively considered to select the proper grain size of the filter material. At present, the biological aerated filter commonly adopts filter materials with the grain diameter of 3-6 mm and the thickness of a filter layer of 3-4 m.

At present, the design volume of the integrated high-filter-material-layer biological aerated filter which is widely applied is determined according to the water quality of inlet and outlet water and the load of filter materials, when the biological aerated filter with higher height needs to be designed, the whole biological aerated filter is inconvenient to transport due to huge volume, the parts of the biological aerated filter need to be disassembled and transported to a use site for welding and installation, and the construction period and the construction difficulty are larger.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high filter bed bological aerated filter convenient to transportation, convenient transportation has promoted high filter bed bological aerated filter's installation effectiveness simultaneously by a wide margin.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a high filter bed bological aerated filter convenient to transportation, including retainer plate and 2 at least high filter bed bological aerated filter modules, high filter bed bological aerated filter module is the high filter bed bological aerated filter of vertical formula, high filter bed bological aerated filter module includes vent pipe, filter brick layer, bearing layer, filter bed and clear water layer, vent pipe, filter brick layer, bearing layer, filter bed and clear water layer are arranged from the filtering pond bottom to the filtering pond top along vertical direction in proper order.

In one embodiment, the aeration pipeline comprises a backwashing gas pipeline and an aeration pipeline, and the backwashing gas pipeline and the aeration pipeline are arranged at intervals in a crossed mode.

In one embodiment, the filter brick layer comprises a plurality of filter bricks, a plurality of water distribution holes are arranged at the lower end part of the filter brick layer, and the ventilation pipeline is arranged in the water distribution holes.

In one embodiment, the backwash gas pipe and the aeration pipe are located on the same horizontal plane.

In one embodiment, a water outlet is formed in the side wall of the clear water layer.

In one embodiment, the fixing ring is a channel steel.

In one embodiment, the length of the high-filter-layer biological aerated filter module is not more than 4000 mm, the width of the high-filter-layer biological aerated filter module is not more than 3500 mm, and the height of the high-filter-layer biological aerated filter module is 3500-10000 mm.

In one embodiment, the height of the filter material layer is 2500-.

Compared with the prior art, the technical scheme of the utility model have following advantage and beneficial effect: the utility model provides a high filter bed aeration biological filter convenient for transportation, which comprises a fixed ring and at least 2 high filter bed aeration biological filter modules, wherein the high filter bed aeration biological filter modules are vertical high filter bed aeration biological filters, each high filter bed aeration biological filter module comprises an air duct, a filter brick layer, a bearing layer, a filter bed and a clear water layer, and the air duct, the filter brick layer, the bearing layer, the filter bed and the clear water layer are sequentially arranged from the bottom of the filter to the top of the filter along the vertical direction; aiming at an integrated high-filter-layer aerated biological filter which is inconvenient to transport, the modular design is adopted to divide the high-filter-layer aerated biological filter into smaller vertical high-filter-layer aerated biological filters, so that the transport is convenient; meanwhile, due to the modular design, the vertical high-filter-bed biological aerated filter is installed in a factory and can be directly used after being transported to the site, so that the construction period is greatly shortened, and the construction difficulty is greatly reduced.

Drawings

FIG. 1 is a schematic structural diagram of a vertical high-filter-bed biological aerated filter in an embodiment in a front view;

FIG. 2 is a left side view schematically showing the structure of the vertical high-filter-bed biological aerated filter in the embodiment;

FIG. 3 is a schematic view showing the combined state of the vertical high-filter-bed biological aerated filter in the embodiment;

FIG. 4 is a schematic structural diagram of a filter brick layer structure in the embodiment.

In the figure: 10-a stationary ring; 20-high filter material layer aeration biological filter module; 1-a backwash gas pipeline; 2-an aeration pipeline; 4-a filter brick layer; 41-water distribution holes; 5-a supporting layer; 6-a filter material layer; 7-clear water layer; 71-water outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, product, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product, or apparatus.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

Examples

As shown in fig. 1-4, the present embodiment provides a high-filter-layer biological aerated filter convenient for transportation, which includes at least 2 high-filter-layer biological aerated filter modules 20 (3 high-filter-layer biological aerated filter modules in this embodiment) and at least 2 fixing rings 10 (2 fixing rings in this embodiment), where the high-filter-layer biological aerated filter modules 20 are vertical high-filter-layer biological aerated filters, the high-filter-layer biological aerated filter modules 20 include an air duct, a filter brick layer 4, a support layer 5, a filter material layer 6 and a clear water layer 7, and the air duct, the filter brick layer 4, the support layer 5, the filter material layer 6 and the clear water layer 7 are sequentially arranged along a vertical direction from the bottom of the filter to the top of the filter.

The fixing ring 10 is used for fixing a plurality of high filter material layer 6 biological aerated filters together to form a stable high filter material layer biological aerated filter;

the air duct is used for inputting air to the high filter material layer 6 aeration biological filter, and is used for cleaning the filter material or providing oxygen required by the filter material layer 6; the filter brick layer 4 is used as a sewage inlet, and has the advantages of difficult blockage and uniform water and gas distribution compared with the traditional buffer layer and water cap combined water and gas distribution;

the supporting layer 5 is used for supporting the filter material layer 6 and simultaneously plays a role in separating the filter brick layer 4 from the filter material layer 6;

the filter material layer 6 is used as a treatment layer for purifying sewage, and can effectively purify the sewage to achieve the effect of purifying the sewage;

and the clear water layer 7 is used for temporarily storing the sewage purified by the filter material layer 6.

In this embodiment, the ventilation pipeline includes a backwash gas pipeline 1 and an aeration pipeline 2, and the backwash gas pipeline 1 and the aeration pipeline 2 are alternately arranged in a crossing manner.

The backwashing gas pipelines 1 and the aeration pipelines 2 are arranged at intervals in a crossing way, which is beneficial to the uniform distribution of gas in the aeration biological pond.

In this embodiment, the filter brick layer 4 includes a plurality of filter bricks, a plurality of water distribution holes 41 are disposed at the lower end of the filter brick layer 4, and the ventilation duct is disposed in the water distribution holes 41.

The ventilating pipeline is arranged in the water distribution hole 41, so that on one hand, the height space of the high-filter-layer biological aerated filter can be effectively saved, on the other hand, the water distribution and the gas distribution of the filter are more uniform and not easy to block, the impact resistance of the high-filter-layer biological aerated filter is improved, and the high-filter-layer biological aerated filter has a better purification treatment effect.

In this embodiment, the backwash gas pipe 1 and the aeration pipe 2 are located on the same horizontal plane.

In this embodiment, a water outlet 71 is disposed on the sidewall of the clean water layer 7. The water outlet 71 is used for outputting the purified sewage outwards.

In this embodiment, the fixing ring 10 is a channel steel.

In this embodiment, the length of the high filter material layer biological aerated filter module 20 is not greater than 4000 mm, the width is not greater than 3500 mm, and the height range is 3500 and 10000 mm.

In this embodiment, the height of the filter material layer 6 is 2500-.

The vertical high-filter-material-layer biological aerated filter provided by the embodiment can independently treat sewage without being connected with each other.

The sewage working principle of the vertical high-filter-material-layer biological aerated filter is as follows:

the sewage treatment process comprises the following steps: sewage enters the biological aerated filter from the filter brick layer 4 at the bottom of the vertical high-filter-material-layer biological aerated filter through water distribution holes 41, then flows out from gaps among the filter bricks, then flows through the supporting layer 5 and the filter material layer 6, fully contacts and reacts with a biological film on the filter material layer 6, is degraded, enters the clear water layer 7, and is finally discharged from a water outlet 71 on the side wall of the clear water layer 7;

and (3) aeration treatment process: oxygen or air enters the filter tank from the aeration pipeline 2, sewage enters the filter tank from the water distribution holes 41, oxygen or air bubbles and water flow overflow from filter brick gaps of the filter brick layer 4 together, and the air or the oxygen bubbles and the sewage flow are in the same direction and enter the filter material layer 6 through the supporting layer 5 to provide oxygen for biodegradation reaction on a biological membrane of the filter material layer 6;

the back washing treatment process comprises the following steps: the backwashing process is similar to the aeration process, backwashing water enters the filter tank from the filter brick water distribution holes 41 of the filter brick layer 4, backwashing gas (such as air) enters the filter tank through the backwashing gas pipeline 1, the backwashing gas and the backwashing water overflow upwards and enter the filter material layer 6 through the supporting layer 5 to purge the filter material, and the purged water enters the clear water layer 7 and is finally discharged from the water outlet 71 on the side wall of the clear water layer 7.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high filter bed bological aerated filter convenient to transportation which characterized in that, includes retainer plate and 2 at least high filter bed bological aerated filter modules, high filter bed bological aerated filter module is vertical high filter bed bological aerated filter, high filter bed bological aerated filter module includes air duct, strains the brick layer, holds the layer, strains the material layer and clear water layer, air duct, strain brick layer, holds the layer, strains the material layer and clear water layer and arranges in proper order to the filter top from the filter bottom along vertical direction.

2. A high-filter-bed biological aerated filter with convenient transportation according to claim 1, wherein the aeration pipeline comprises a backwash gas pipeline and an aeration pipeline, and the backwash gas pipeline and the aeration pipeline are arranged at intervals in a crossed way.

3. A high filter bed biological aerated filter for easy transport according to claim 2 wherein said filter bed comprises a plurality of filter bricks, said filter bed having a plurality of water distribution holes at the lower end thereof, said aeration conduits being disposed in said water distribution holes.

4. A transport-friendly high-filter-layer bological aerated filter according to claim 3, wherein the backwash gas conduit and the aeration conduit are located on the same horizontal plane.

5. A high-filter-bed biological aerated filter convenient for transportation according to claim 4, wherein the side wall of the clean water layer is provided with a water outlet.

6. A high filter bed biological aerated filter for transport according to claim 5 wherein said retaining ring is channel steel.

7. The high filter bed biological aerated filter convenient for transportation of claim 6, wherein the length of the high filter bed biological aerated filter module is not more than 4000 mm, the width is not more than 3500 mm, and the height range is 3500-10000 mm.

8. The biological aerated filter with a high filter material layer convenient for transportation of claim 7, wherein the height of the filter material layer is 2500-4500 mm.