Micro-aeration backflushing-free filter tank

Abstract

The utility model discloses a micro-aeration backwash-free filter tank in the field of sewage treatment, which comprises a tank body, a filter tank, a filter tank, a filter tank, a filter tank and a backwash-free filter tank, and is characterized in that the tank body comprises a filter area and a drainage area; the filtering structure is arranged in the filtering area and is used for filtering the sewage entering the filtering area; the water passing assembly is used for realizing water feeding and water discharging of the pool body; the air inlet pipe is used for aerating the filtering structure; the blow-off pipe is arranged on the pool wall of the filtering area above the filtering structure and is used for discharging suspended matters; the utility model has the beneficial effects that by arranging the positions of the blow-off pipe and the filter structure, the dirt is automatically discharged from the blow-off pipe through the siphon principle when the dirt is accumulated to a certain amount, the siphon backflushing frequency is low, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a micro-aeration non-backwash filter tank. Background Art

[0002] With the development of economy and the progress of society, the development of various industries will change from extensive development to intensive development. Among them, the characteristics of reducing investment costs and improving operation efficiency will become the new development direction, and environmental protection equipment is no exception.

[0003] The main function of the filter in sewage treatment is to filter out some suspended solids contained in the water after sewage treatment, to ensure that the sewage can meet the discharge standards after treatment. The commonly used filters now are V-type filters and valveless filters. The problems of V-type filters are low working efficiency, complex process operation, and high cost. They are suitable for medium and large projects. The valveless filters suitable for small projects also have the problems of high backwash times and low working efficiency.

[0004] To this end, we propose a micro-aeration non-backwash filter. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a micro-aeration non-backwash filter.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present utility model is:

[0007] A micro-aeration non-backwash filter tank comprises: a tank body, comprising a filter area and a drainage area connected at the bottom; a filter structure, arranged in the filter area, for filtering sewage entering the filter area; a water flow assembly, arranged in the filter area and the drainage area, for realizing water inflow and drainage of the tank body; an air inlet pipe, arranged on the tank wall of the filter area below the filter structure, for realizing aeration of the filter structure; and a sewage discharge pipe, arranged on the tank wall of the filter area above the filter structure, for discharging suspended matter.

[0008] By setting the sewage pipe above the water-passing component, which is set above the filtering structure, the sewage will be filtered through the filtering structure through the aeration of the air inlet pipe below, and the filtered water will be discharged from the drainage area. In this way, the suspended matter intercepted during filtration will accumulate and suspend in the water above the filtering structure. After accumulating to a certain amount, it can be discharged from the sewage pipe through the siphon principle. When the sewage is discharged to the inlet end of the sewage pipe, the sewage discharge is stopped and the filtering function returns to normal. The process operation is simple, the number of siphon backwash times is low, and the work efficiency is higher.

[0009] It is further defined that the filtration area and the drainage area are separated by a partition, and a gap connecting the filtration area and the drainage area is opened at the bottom of the partition; the partition is separated by the partition, the structure is simple, and the production is convenient.

[0010] It is further defined that the filtration structure includes an air distribution plate, a gravel layer arranged on the air distribution plate, and a quartz sand layer arranged on the gravel layer. The two sides of the air distribution plate are respectively stuck on the pool wall and partition of the filtration area; ventilation is achieved through the air distribution plate, and the gravel layer and the quartz sand layer filter the sewage, and the filtration effect is better.

[0011] It is further defined that the water flow assembly includes a water inlet pipe and a drain pipe, the water inlet pipe is arranged on the wall of the filter area pool above the sewage pipe, and the drain pipe is arranged on the pool wall of the drainage area.

[0012] It is further defined that the sewage pipe includes vertical sections at both ends and a horizontal section in the middle. The sewage pipe passes through the horizontal section and is arranged on the pool wall of the filtration area. The length of the vertical section inside the pool body is smaller than the length of the vertical section outside the pool body, and a gap is left between the vertical section inside the pool body and the quartz sand layer.

[0013] It is further defined that the air distribution plate is in the shape of a door, and L-shaped clips are provided on the inner side of the pool wall and the partition of the filtration area, and the bottoms of both sides of the air distribution plate are clamped on the clips; by setting the clips, the air distribution plate is placed on the clips, and disassembly and assembly are simpler and more convenient.

[0014] The beneficial effects of the utility model are as follows: by setting the positions of the sewage pipe and the filter structure, when the sewage accumulates to a certain amount, the sewage is automatically discharged from the sewage pipe through the siphon principle, the number of siphon backwash times is low, and the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a simple structural diagram of the utility model.

[0016] The symbols of the components are as follows:

[0017] Pool body 1, filtration area 11, drainage area 12, filtration structure 2, air distribution plate 21, gravel layer 22, quartz sand layer 23, water flow component 3, water inlet pipe 31, drainage pipe 32, air inlet pipe 4, sewage pipe 5, partition 6. DETAILED DESCRIPTION

[0018] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0019] Example:

[0020] like Figure 1As shown, a micro-aeration non-backwash filter tank includes a tank body 1, a filter structure 2, a water flow assembly 3, an air inlet pipe 4 and a sewage pipe 5; the tank body 1 includes a filter area 11 and a drainage area 12 connected at the bottom, the filter area 11 and the drainage area 12 are separated by a partition 6, and a gap connecting the filter area 11 and the drainage area 12 is opened at the bottom of the partition 6; the filter structure 2 is arranged in the filter area 11 to filter the sewage entering the filter area 11; the filter structure 2 includes an air distribution plate 21, a gravel layer 22 arranged on the air distribution plate 21, and a quartz sand layer 23 arranged on the gravel layer 22, the air distribution plate 21 is in the shape of a gate, and L-shaped ears are provided on the inner side of the pool wall of the filter area 11 and the partition 6, and the bottoms of both sides of the air distribution plate 21 are clamped on the ears; the water flow assembly 3 includes a water inlet pipe 4 and a water flow assembly 5; Pipe 31 and drain pipe 32, the water inlet pipe 31 is arranged on the wall of the filter area 11 pool above the sewage pipe 5, the outer end of the water inlet pipe 31 is connected to the sewage pump, and the drain pipe 32 is arranged on the pool wall of the drainage area 12; the air inlet pipe 4 is arranged on the pool wall of the filter area 11 below the filter structure 2 to realize aeration of the filter structure 2, and the outer end of the air inlet pipe 4 is connected to the aeration fan; the sewage pipe 5 is arranged on the pool wall of the filter area 11 above the filter structure 2 for discharging suspended matter; the sewage pipe 5 includes vertical sections at both ends and a horizontal section in the middle. The sewage pipe 5 is passed through the pool wall of the filter area 11 through the horizontal section. The length of the vertical section inside the pool body 1 is less than the length of the vertical section outside the pool body 1, and there is a gap between the vertical section inside the pool body 1 and the quartz sand layer 23.

[0021] By arranging the sewage pipe 5 above the water-passing component 3, and the water-passing component 3 above the filtering structure 2, the sewage will be filtered through the filtering structure 2 through the aeration of the air inlet pipe 4 below, and the filtered water will be discharged from the drainage area 12. In this way, the suspended matter trapped during filtration will accumulate and suspend in the water above the filtering structure 2. After accumulating to a certain amount, it can be discharged from the sewage pipe 5 through the siphon principle. When the sewage is discharged to the inlet end of the sewage pipe 5, the sewage discharge is stopped, and the filtering function is restored to normal. The process operation is simple, the number of siphon backwash times is low, and the work efficiency is higher. Partitioning is achieved by the partition 6, the structure is simple, and the production is convenient. Ventilation is achieved by the air distribution plate 21, and the gravel layer 22 and the quartz sand layer 23 filter the sewage, and the filtering effect is better. By arranging the ear, the air distribution plate 21 is placed on the ear, and disassembly and assembly are simpler and more convenient.

Claims

1. A micro-aeration non-backwash filter, characterized in that: include: A tank body (1) includes a filtering area (11) and a drainage area (12) connected at the bottom; A filtering structure (2) is provided in the filtering area (11) and filters sewage entering the filtering area (11); A water flow assembly (3) is provided on the filter area (11) and the drainage area (12) and is used to realize water inflow and drainage of the pool body (1); An air inlet pipe (4) is provided on the pool wall of the filter area (11) below the filter structure (2) to achieve aeration for the filter structure (2); A sewage pipe (5) is provided on the pool wall of the filtration area (11) above the filtration structure (2) and is used for discharging suspended matter.

2. The micro-aeration non-backwash filter according to claim 1, characterized in that: The filter area (11) and the drainage area (12) are separated by a partition (6), and a gap is provided at the bottom of the partition (6) for connecting the filter area (11) and the drainage area (12).

3. The micro-aeration non-backwash filter according to claim 2, characterized in that: The filtering structure (2) comprises an air distribution plate (21), a gravel layer (22) provided on the air distribution plate (21), and a quartz sand layer (23) provided on the gravel layer (22); two sides of the air distribution plate (21) are respectively fixed on the pool wall of the filtering area (11) and the partition plate (6).

4. The micro-aeration non-backwash filter according to claim 3, characterized in that: The water flow assembly (3) comprises a water inlet pipe (31) and a drain pipe (32); the water inlet pipe (31) is arranged on the wall of the pool in the filtration area (11) above the sewage pipe (5); and the drain pipe (32) is arranged on the pool wall of the drainage area (12).

5. The micro-aeration non-backwash filter according to claim 4, characterized in that: The sewage pipe (5) comprises vertical sections at both ends and a horizontal section in the middle. The sewage pipe (5) is passed through the pool wall of the filtration area (11) through the horizontal section. The length of the vertical section inside the pool body (1) is shorter than the length of the vertical section outside the pool body (1), and a gap is left between the vertical section inside the pool body (1) and the quartz sand layer (23).

6. The micro-aeration non-backwash filter according to claim 3, characterized in that: The air distribution plate (21) is in the shape of a gate. L-shaped clamping ears are provided on the inner side of the pool wall of the filtration area (11) and the partition (6). The bottoms of both sides of the air distribution plate (21) are clamped on the clamping ears.

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