CN217077303U

CN217077303U - Internal circulation backflow conveying device convenient for industrial wastewater treatment

Info

Publication number: CN217077303U
Application number: CN202220634172.4U
Authority: CN
Inventors: 惠宇涛
Original assignee: Jiangsu Daoze Environmental Protection Technology Co ltd
Current assignee: Jiangsu Daoze Environmental Protection Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-29
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses an internal circulation backflow conveying device convenient for industrial wastewater treatment, which comprises an aerobic tank and a filtering tank which are adjacently arranged, wherein the bottom of the aerobic tank is provided with an aeration device, a filtering plate is horizontally arranged in the filtering tank, the filtering tank is higher than the aerobic tank, the wall of the filtering tank is provided with a backflow port, the backflow port is communicated with the aerobic tank, and the backflow port is provided with a slag scraping mechanism; the bottom of the filter tank is provided with an air flotation mechanism which comprises a dissolved air pump and an air flotation tank, the air flotation tank is fixed at the bottom of the filter plate, the top and the side of the air flotation tank are both provided with air outlet holes, and the air flotation tank is connected with the dissolved air pump through a pipeline. The bottom of the filtering tank is provided with the air floatation mechanism, microbial flocs in a water body float upwards through the air floatation mechanism, and the microbial flocs are scraped back into the aerobic tank from the backflow port through the slag scraping mechanism, so that the efficient backflow of activated sludge is realized, and the sewage treatment efficiency is improved; the fixed waste in the sludge is discharged from the filter tank by the slag discharge mechanism, so that the backflow conveying device is not abraded, and the use cost is reduced.

Description

Internal circulation backflow conveying device convenient for industrial wastewater treatment

Technical Field

The utility model relates to an industrial wastewater treatment device technical field especially relates to a be convenient for handle industrial wastewater inner loop backward flow conveyor.

Background

Industrial wastewater refers to wastewater containing industrial production materials, intermediate products, byproducts and other pollutants discharged in the industrial production process, and is one of important reasons for water pollution. The activated sludge process is a process for treating sewage by continuously mixing and culturing sewage and various microbial populations under artificial oxygenation conditions to form activated sludge. The biological coagulation, adsorption and oxidation of the activated sludge are utilized to decompose and remove organic pollutants in the sewage. Then separating the sludge from the water, returning most of the sludge to the aeration tank through a return conveying device, and discharging the redundant sludge out of the activated sludge system. At present, the reflux of activated sludge is realized mostly by a sludge pump.

However, in the process of implementing the technical solution of the present invention in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following problems:

due to the fact that solid particles such as metal debris exist in the activated sludge, the sludge pump is easily abraded in the backflow process, the service life of the sludge pump is shortened, and the use cost is improved; and the sludge plays a role in decomposing microbial flocs growing in a suspension manner, and the reflux of other solid wastes can cause the reduction of the proportion of the microbial flocs in the aerobic tank, so that the treatment effect of the aerobic tank is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be convenient for handle industrial waste water inner loop backward flow conveyor to solve the technical problem who mentions in the background art, the utility model discloses a realize through following technical scheme:

an internal circulation backflow conveying device convenient for industrial wastewater treatment comprises an aerobic tank and a filtering tank which are adjacently arranged, wherein the bottom of the aerobic tank is provided with an aeration device, a filtering plate is horizontally arranged in the filtering tank, the filtering tank is higher than the aerobic tank, the wall of the filtering tank is provided with a backflow port, the backflow port is communicated with the aerobic tank, and the backflow port is provided with a slag scraping mechanism; the bottom of the filter tank is provided with an air flotation mechanism which comprises a dissolved air pump and an air flotation tank, the air flotation tank is fixed at the bottom of the filter plate, the top and the side of the air flotation tank are both provided with air outlet holes, and the air flotation tank is connected with the dissolved air pump through a pipeline.

Furthermore, one end of the filter plate is provided with a slag collecting groove, and a slag discharging mechanism is arranged in the slag collecting groove.

Further, the slag discharging mechanism is a screw conveyer.

Furthermore, a guide plate is arranged at the top of the filter tank and above the slag collecting groove.

Furthermore, a water pump is arranged between the aerobic tank and the filter tank, a water inlet of the water pump is communicated with the bottom of the aerobic tank through a pipeline, and a water outlet of the water pump is communicated with the top of the filter tank through a pipeline.

Furthermore, the bottom of the filter tank is provided with a water outlet which is positioned at the lower side of the filter plate.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

the bottom of the filter tank is provided with the air floatation mechanism, microbial floc in a water body floats upwards through the air floatation mechanism, and is scraped back to the aerobic tank from the reflux port through the slag scraping mechanism, so that efficient reflux of activated sludge is realized, the content of microorganisms in the aerobic tank is improved, and the sewage treatment efficiency is further improved; other fixed wastes such as metal scraps in the sludge are discharged out of the filter tank by the slag discharge mechanism, so that the backflow conveying device is not abraded, and the use cost is reduced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a perspective view of the structure of an aerobic tank and a filtering tank in the embodiment of the present application;

fig. 2 is a schematic structural diagram of an embodiment of the present application.

In the drawings, there is shown: 1. an aerobic tank; 2. a filtration tank; 21. a return port; 3. a filter plate; 4. an air floatation mechanism; 5. a slag scraping mechanism; 51. a dissolved air pump; 52. an air flotation tank; 6. and a slag discharging mechanism.

Detailed Description

For better understanding of the above technical solutions, the following detailed descriptions will be made in conjunction with the accompanying drawings and the detailed description of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

As shown in figures 1 and 2, the internal circulation backflow conveying device convenient for industrial wastewater treatment comprises an aerobic tank 1 and a filtering tank 2 which are adjacently arranged, wherein an aeration device (not shown) is arranged at the bottom of the aerobic tank 1, a filtering plate 3 is horizontally arranged in the filtering tank 2, a backflow port 21 is arranged on the wall of the filtering tank 2, and the backflow port 21 is communicated with the aerobic tank 1; the bottom of the filtering tank 2 is provided with an air floating mechanism 4 for lifting the microbial flocs in the water body to the water surface; the return opening 21 is provided with a slag scraping mechanism 5 for scraping the sludge into the aerobic tank 1.

Specifically, as shown in fig. 1 and 2, the aerobic tank 1 and the filtering tank 2 are concrete-poured tank bodies, an aeration device is fixed at the bottom of the aerobic tank 1, the aeration device comprises an aeration pipe and a high-pressure air source which are spirally laid at the bottom of the aerobic tank 1, nozzles are uniformly installed on the aeration pipe, one end of the aeration pipe is connected with the high-pressure air source, and the other end of the aeration pipe is closed. The aeration device is used for continuously blowing air into the aerobic tank 1 so as to increase the oxygen content in the water body of the aerobic tank and improve the treatment efficiency of the aerobic tank 1 on organic matters.

The middle position of the filtering tank 2 is horizontally provided with a filtering plate 3, and the lower side of the filtering plate 3 is provided with a water outlet for discharging filtered water. One side of the filter plate 3 is provided with a semi-cylindrical slag collecting groove, and a slag discharging mechanism 6 is arranged in the slag collecting groove. Preferably, the filter plate 3 inclines 1-5 degrees towards the slag collecting groove to facilitate the solid waste to slide into the slag collecting groove; the slag discharging mechanism 6 is a screw conveyor, a sealing door (not shown) is installed at the discharging end of the screw conveyor, and after water in the filtering tank 2 is emptied, the sealing door and the screw conveyor are opened to discharge the solid waste in the slag collecting groove.

The bottom of the filter tank 2 is provided with an air flotation mechanism 5, the air flotation mechanism 5 comprises a dissolved air pump 51 and an air flotation tank 52, the air flotation tank 52 is a rectangular box body formed by welding stainless steel, the air flotation tank 52 is fixed on the lower side of the filter plate 3, air outlet holes are formed in the top and the side surface of the air flotation tank 52, and the air flotation tank 52 is connected with the dissolved air pump 51 through a pipeline. The dissolved air pump 51 pumps water and air into the air flotation tank 52 after compressing and mixing the water and the air, releases micro bubbles in the air flotation tank 52, rises from the air outlet of the air flotation tank 52, passes through the filter plate 3 and is combined with the microbial flocs on the upper side of the filter plate 3, and the microbial flocs float up to the water surface; the solid waste, due to its heavy weight, slides down the filter plates 3 into the slag collection tank. Through blowing at 3 downside of filter, still can avoid filter 3 to block up, prolong the life of filter 3.

The height of the filtering tank 2 is higher than that of the aerobic tank 1, the filtering tank 2 and the aerobic tank 1 share a tank wall, a return opening 21 is formed in the common tank wall, and a slag scraping mechanism 4 is arranged at the return opening 21; the slag scraping mechanism 4 scrapes the floating microbial flocs back into the aerobic tank 1 from the return port 21, so as to realize the circulating return of the activated sludge.

Preferably, the top of the filter tank 2 is provided with a guide plate 21, and the guide plate 21 is arranged above the slag collecting groove; a water pump (not shown) is arranged between the aerobic tank 1 and the filter tank 2, a water inlet of the water pump is communicated with the bottom of the aerobic tank through a pipeline, a water outlet of the water pump is communicated with the top of the filter tank through a pipeline, and a water outlet of the pipeline is fixed above the guide plate 21.

When the filter is used, water in the aerobic tank is pumped to a guide plate of the filter tank by a water pump, sludge slides onto the filter plate from the guide plate, microbial floc in the sludge floats to the water surface under the action of the air floatation mechanism, and is scraped back into the aerobic tank from a return port by the slag scraping mechanism; solid waste in the sludge slides into the slag collecting tank from the filter plate to wait for uniform discharge; the filtered water is discharged from the water outlet and enters a factory to realize cyclic utilization.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement 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 be convenient for handle industrial waste water inner loop backward flow conveyor, includes the good oxygen pond of adjacent setting, filtering ponds, good oxygen bottom of the pool portion is provided with aeration equipment, the level is provided with filter, its characterized in that in the filtering ponds:

the filtering tank is higher than the aerobic tank, a backflow port is formed in the wall of the filtering tank and communicated with the aerobic tank, and a slag scraping mechanism is arranged at the backflow port;

the filter tank bottom is provided with the air supporting mechanism, the air supporting mechanism includes dissolved air pump and air supporting box, the air supporting box is fixed the filter bottom, the top and the side of air supporting box all are provided with the venthole, the air supporting box pass through the pipeline with the dissolved air pump is connected.

2. The internal circulation reflux conveyor for industrial wastewater treatment of claim 1, wherein one end of the filter plate is provided with a slag collecting groove, and the slag collecting groove is internally provided with a slag discharging mechanism.

3. The internal circulation backflow conveying device for conveniently treating industrial wastewater as claimed in claim 2, wherein the deslagging mechanism is a screw conveyor.

4. The internal circulation backflow conveying device for conveniently treating industrial wastewater as claimed in claim 2, wherein a flow guide plate is arranged at the top of the filtering tank, and the flow guide plate is arranged above the slag collecting groove.

5. The internal circulation backflow conveying device for conveniently treating industrial wastewater as claimed in claim 1, wherein a water pump is arranged between the aerobic tank and the filtering tank, a water inlet of the water pump is communicated with the bottom of the aerobic tank through a pipeline, and a water outlet of the water pump is communicated with the top of the filtering tank through a pipeline.

6. The internal circulation return flow conveyor for industrial wastewater treatment as claimed in claim 1, wherein the bottom of said filter tank is provided with a drain port, said drain port being located on the underside of said filter plate.