Double-tank biological aerated filter capable of realizing automatic control

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a double-tank biological aerated filter capable of realizing automatic control, which comprises a box body, a first biological aerated filter and a second biological aerated filter are arranged in the box body, a multi-filtering component is arranged in the first biological aerated filter, an aeration component is arranged on the lower side of the multi-filtering component, and a water outlet is arranged on the lower side of the aeration component. A double-layer filtering assembly is arranged on the lower side of the aeration assembly, and a backwashing assembly is arranged on the lower side of the double-layer filtering assembly. According to the utility model, the first biological aerated filter and the second biological aerated filter can be used for simultaneously treating sewage with better water quality, so that the sewage can be quickly treated; sewage with poor water quality is primarily treated through the first biological aerated filter, and then is further treated through the second biological aerated filter, so that the sewage treatment effect is improved; the double-tank combined biological aerated filter has excellent impact resistance, and the effluent quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a double-tank aerated biological filter tank capable of realizing automatic control. Background Art

[0002] Aerated biological filter, referred to as BAF, was developed in the late 1980s and early 1990s on the basis of ordinary biological filters and is known as the third generation of biofilm technology. This technology combines the operating characteristics of traditional biofilm technology and rapid filter technology, and is researched and developed to adapt to the ever-increasing emission standards and wastewater resource reuse rate. BAF can not only be used for deep treatment of sewage treatment plants, but has also been widely used in the treatment of urban sewage, domestic wastewater and various industrial wastewaters.

[0003] Existing aerated biological filters can usually only treat sewage of the same water quality, but the water quality of sewage generated by urban sewage, domestic wastewater, etc. is different, resulting in the need for multiple devices to treat sewage of different water quality levels separately, resulting in high sewage treatment costs and affecting the efficiency of sewage treatment of different levels. Therefore, a dual-tank aerated biological filter that can achieve automatic control is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a double-tank aerated biological filter capable of realizing automatic control, so as to overcome the above-mentioned defects in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-tank aerated biological filter tank capable of realizing automatic control, comprising a box body, a water distribution tank being installed at the upper end of the box body, two first partitions being fixedly arranged inside the water distribution tank at intervals, a water distribution cavity being arranged between the two first partitions, a first sewage cavity being arranged on one side of the water distribution tank, a second sewage cavity being arranged on the other side of the water distribution tank, a second partition being fixedly arranged in the middle of the box body, a first aerated biological filter tank being arranged on one side of the box body, a second aerated biological filter tank being arranged on the other side of the box body, and a multi-filter tank being fixedly arranged on the upper side of the interior of the first aerated biological filter tank. An aeration component is installed at the lower side of the multiple filtering component, a double-layer filtering component is installed at the lower side of the aeration component, a backwashing component is installed at the lower side of the double-layer filtering component, a supporting plate is fixedly provided at the lower side of the backwashing component, a first water outlet pipe is provided at one side of the lower part of the first aerated biological filter, a second water outlet pipe is provided at one side of the lower part of the second aerated biological filter, a first water inlet pipe is provided on the first sewage chamber, a second water inlet pipe is provided on the second sewage chamber, the interior of the first aerated biological filter is the same as the internal structure of the second aerated biological filter, and electric ball valves are provided inside the first water outlet pipe 19 and the second water outlet pipe 20.

[0006] Among them, sewage with better water quality can be treated simultaneously through the first aerated biological filter and the second aerated biological filter, so as to quickly treat the sewage and improve the efficiency of sewage treatment; sewage with poor water quality is firstly treated through the first aerated biological filter, and then further treated through the second aerated biological filter, so as to treat sewage with poor water quality and improve the effect of sewage treatment, so that sewage with different water quality levels can be treated and the effect and efficiency of sewage treatment can be improved; the double-tank combined aerated biological filter has flexible operation combination control and excellent impact resistance to adapt to the fluctuating water volume and water quality of dispersed domestic sewage and improve the effluent water quality.

[0007] Preferably, a first connecting pipe is provided between the first sewage chamber and the upper inner side of the first biological aerated filter, a second connecting pipe is provided between the first sewage chamber and the upper inner side of the second biological aerated filter, a third connecting pipe is provided between the second sewage chamber and the upper inner side of the first biological aerated filter, a first water pump is installed on the front side of the box, a first water pipe is provided between the first water pump and the lower inner side of the first biological aerated filter, and a second water pipe is provided between the first water pump and the upper inner side of the second biological aerated filter. The first water pump is a prior art and will not be described in detail.

[0008] Preferably, the multiple filtration assembly includes a frame, the frame is fixed on the upper side of the interior of the first aerated biological filter, a plurality of third partitions are fixedly provided at intervals on both sides of the interior of the frame, the plurality of third partitions are staggeredly distributed on both sides of the interior of the frame, the plurality of third partitions form a wavy channel inside the frame, and a plurality of ceramsite filter material layers are vertically spaced inside the frame.

[0009] Preferably, the aeration assembly includes an air pump, which is installed on one side of the outside of the box, an air inlet pipe is fixedly provided on the upper side of the air pump, an air outlet pipe is fixedly provided on the lower side of the air pump, a main aeration pipe is fixedly provided in the middle of the interior of the box, the main aeration pipe runs through the second partition, the main aeration pipe is located inside the first aerated biological filter and inside the second aerated biological filter, the main aeration pipe is connected to the air outlet pipe, a plurality of auxiliary aeration pipes are fixedly provided at intervals in the middle of the interior of the first aerated biological filter, and each of the auxiliary aeration pipes is connected to the main aeration pipe. The air pump is a prior art and will not be described in detail.

[0010] Preferably, each of the auxiliary aeration tubes is in an O-shaped structure, and a plurality of air outlet holes are provided on the upper side of each of the auxiliary aeration tubes.

[0011] Preferably, the double-layer filter assembly comprises a ceramic granular layer, the ceramic granular layer is filled on the lower side of the interior of the first aerated biological filter, and a gravel granular layer is provided on the lower side of the ceramic granular layer.

[0012] Preferably, the backwash assembly includes a second water pump, the second water pump is installed on the outer side of the box, the water distribution chamber is provided with a third water inlet pipe, the second water pump is connected to the inside of the water distribution chamber by a third water pipe, the lower inner side of the box is provided with a main backwash pipe, the main backwash pipe runs through the second partition, the backwash pipe is located inside the first aerated biological filter and inside the second aerated biological filter, the inner side of the main backwash pipe is connected to the second water pump by a fourth water pipe, a plurality of auxiliary backwash pipes are arranged at intervals on the lower inner side of the first aerated biological filter, each of the auxiliary backwash pipes is connected to the main backwash pipe, a plurality of water spray holes are arranged at intervals on the upper side of each of the auxiliary backwash pipes, and each of the auxiliary backwash pipes is in an O-shaped structure. The second water pump is a prior art and will not be described in detail.

[0013] Preferably, a control panel is installed on the front side of the box, wherein the control panel is prior art and will not be described in detail.

[0014] Preferably, a first L-shaped partition is fixedly provided on one side of the interior of the second aerated biological filter, a first filter chamber is provided inside the second aerated biological filter separated by the first L-shaped partition, the interior of the first filter chamber is filled with activated carbon, a fourth connecting pipe is provided on the lower side of the interior of the first aerated biological filter and connected to the lower side of the interior of the first filter chamber, a third water outlet pipe is provided on the upper side of the interior of the first filter chamber, a first detector is installed on the lower side of the first L-shaped partition, and a first small water pump is provided inside the fourth connecting pipe.

[0015] Preferably, a second L-shaped partition is fixedly provided on one side of the interior of the first aerated biological filter, a second filter chamber is provided inside the first aerated biological filter separated by the second L-shaped partition, the interior of the second filter chamber is filled with activated carbon, a fifth connecting pipe is provided on the lower side of the interior of the second aerated biological filter and connected to the lower side of the interior of the second filter chamber, a fourth water outlet pipe is provided on the upper side of the interior of the second filter chamber, a second detector is installed on the lower side of the second L-shaped partition, a second small water pump is provided inside the fifth connecting pipe, and electric ball valves are provided inside the third and fourth water outlet pipes.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model can simultaneously treat sewage with good water quality through the first aerated biological filter and the second aerated biological filter, so as to quickly treat the sewage and improve the efficiency of sewage treatment; firstly, the sewage with poor water quality is preliminarily treated through the first aerated biological filter, and then the sewage is further treated through the second aerated biological filter, so as to treat the sewage with poor water quality and improve the effect of sewage treatment, thereby being able to treat sewage with different water qualities and improve the effect and efficiency of sewage treatment; the double-tank combined aerated biological filter has flexible operation combination mode regulation and has excellent impact resistance to adapt to the fluctuating water volume and water quality of dispersed domestic sewage and improve the effluent water quality.

[0018] 2. The utility model can first form a wavy channel inside the frame through a number of third partitions, thereby extending the flow distance of the sewage in the frame, so as to facilitate multiple filtering effects on the sewage in the frame through a number of ceramsite filter layers, which can adsorb pollutants in the water and remove suspended matter in the water; then, the air and sewage are fully contacted through a number of auxiliary aeration pipes, and the liquid is stirred to accelerate the transfer of oxygen in the air to the liquid, strengthen the contact between organic matter in the sewage and microorganisms and dissolved oxygen, and oxidize and decompose the organic matter in the sewage; then the sewage is double filtered through the ceramic particle layer and the gravel particle layer; finally, the mixed solution in the several auxiliary backwashing pipes is sprayed upward through a number of water spray holes, which can realize the flushing of the ceramic particle layer and the gravel particle layer, avoid the blockage of the ceramic particle layer and the gravel particle layer, and the sewage is chemically neutralized by the medicine in the mixed solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a schematic diagram of the isometric structure of the utility model.

[0021] Figure 2 It is an oblique isometric structural schematic diagram of the utility model.

[0022] Figure 3 This is an isometric structural diagram of the aeration component in the utility model.

[0023] Figure 4 It is a schematic diagram of the top view structure of the utility model.

[0024] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle.

[0025] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at BB in the middle.

[0026] In the figure, a box body 10, a water distribution tank 11, a first baffle 12, a first sewage chamber 13, a second sewage chamber 14, a water distribution chamber 15, a second baffle 16, a first aerated biological filter 17, a second aerated biological filter 18, a first outlet pipe 19, a second outlet pipe 20, a first inlet pipe 21, a second inlet pipe 22, a third inlet pipe 23, a first connecting pipe 24, a second connecting pipe 25, a third connecting pipe 26, a control panel 27, a frame 28, a third baffle 29, a ceramsite filter layer 30, an air pump 31, an air inlet pipe 32, an air outlet pipe 33, an aeration assembly 34, a main aeration pipe 35, and an auxiliary aeration pipe 36, ceramic particle layer 37, gravel particle layer 38, support plate 39, main backwash pipe 40, auxiliary backwash pipe 41, air outlet 42, water spray hole 43, backwash assembly 44, second water pump 45, third water pipe 46, fourth water pipe 47, first water pump 48, first water pipe 49, second water pipe 50, multiple filter assembly 51, double-layer filter assembly 52, first L-shaped partition 53, first filter chamber 54, third water outlet pipe 55, fourth connecting pipe 56, second L-shaped partition 57, second filter chamber 58, fourth water outlet pipe 59, fifth connecting pipe 60, first detector 61, second detector 62. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0029] See also Figure 1-6The utility model provides a technical solution: a dual-tank aerated biological filter capable of realizing automatic control, comprising a box body 10, a water distribution box 11 is bolted to the upper end of the box body 10, two first partitions 12 are welded and fixed inside the water distribution box 11, a water distribution chamber 15 is arranged between the two first partitions 12, a first sewage chamber 13 is arranged on one side of the water distribution box 11, a second sewage chamber 14 is arranged on the other side of the water distribution box 11, a second partition 16 is welded and fixed in the middle of the box body 10, a first aerated biological filter 17 is arranged on one side of the box body 10, a second aerated biological filter 18 is arranged on the other side of the box body 10, and a multiple filter group is fixed on the upper side of the first aerated biological filter 17 Component 51, an aeration component 34 is installed at the lower side of the multiple filtering component 51, a double-layer filtering component 52 is installed at the lower side of the aeration component 34, a backwashing component 44 is installed at the lower side of the double-layer filtering component 52, a supporting plate 39 is fixedly provided at the lower side of the backwashing component 44, a first outlet pipe 19 is provided at one side of the lower part of the first aerated biological filter 17, a second outlet pipe 20 is provided at one side of the lower part of the second aerated biological filter 18, a first water inlet pipe 21 is provided on the first sewage chamber 13, a second water inlet pipe 22 is provided on the second sewage chamber 14, the interior of the first aerated biological filter 17 is the same as the internal structure of the second aerated biological filter 18, and electric ball valves are provided inside the first outlet pipe 19 and the second outlet pipe 20.

[0030] Further, such as Figure 1-2 , Figure 4-6 As shown, a first connecting pipe 24 is provided between the first sewage chamber 13 and the inner upper side of the first aerated biological filter 17, a second connecting pipe 25 is provided between the first sewage chamber 13 and the inner upper side of the second aerated biological filter 18, a third connecting pipe 26 is provided between the second sewage chamber 14 and the inner upper side of the first aerated biological filter 17, a first water pump 48 is installed on the front side of the casing 10, a first water pipe 49 is provided between the first water pump 48 and the inner lower side of the first aerated biological filter 17, and a second water pipe 50 is provided between the first water pump 48 and the inner upper side of the second aerated biological filter 18.

[0031] Further, such as Figure 5-6 As shown, the multiple filtering assembly 51 includes a frame 28, which is bolted to the upper side of the interior of the first aerated biological filter 17, and a plurality of third partitions 29 are welded and fixed at intervals on both sides of the interior of the frame 28. The plurality of third partitions 29 are staggered and distributed on both sides of the interior of the frame 28. The plurality of third partitions 29 form a wavy channel inside the frame 28, and a plurality of ceramsite filter material layers 30 are vertically spaced inside the frame 28.

[0032] Further, such as Figure 1 , Figure 3-5As shown, the aeration assembly 34 includes an air pump 31, which is bolted to the outer side of the box body 10, an air inlet pipe 32 is fixedly provided on the upper side of the air pump 31, and an air outlet pipe 33 is fixedly provided on the lower side of the air pump 31. A main aeration pipe 35 is fixedly provided with bolts in the middle of the interior of the box body 10, and the main aeration pipe 35 passes through the second partition 16. The main aeration pipe 35 is located inside the first aerated biological filter 17 and inside the second aerated biological filter 18. The main aeration pipe 35 is connected to the air outlet pipe 33, and a plurality of auxiliary aeration pipes 36 are fixedly provided with bolts at intervals in the interior of the first aerated biological filter 17, and each auxiliary aeration pipe 36 is connected to the main aeration pipe 35.

[0033] Further, such as Figure 3 As shown, each auxiliary aeration pipe 36 has an O-shaped structure, and a plurality of air outlet holes 42 are provided on the upper side of each auxiliary aeration pipe 36 .

[0034] Further, such as Figure 5-6 As shown, the double-layer filter assembly 52 includes a ceramic granular layer 37 , which is filled on the lower side of the interior of the first aerated biological filter 17 , and a gravel granular layer 38 is provided on the lower side of the ceramic granular layer 37 .

[0035] Further, such as Figure 2 , Figure 4-5 As shown, the backwash assembly 44 includes a second water pump 45, which is bolted to one side of the outside of the box body 10, and a third water inlet pipe 23 is welded and fixed on the water distribution chamber 15. The second water pump 45 is connected to the inside of the water distribution chamber 15 by a third water pipe 46. A main backwash pipe 40 is bolted to the lower side of the inside of the box body 10, and the main backwash pipe 40 passes through the second partition 16. The backwash pipe 40 is located inside the first aerated biological filter 17 and inside the second aerated biological filter 18. A fourth water pipe 47 is connected between the inside of the main backwash pipe 40 and the second water pump 45. A plurality of auxiliary backwash pipes 41 are bolted to the lower side of the inside of the first aerated biological filter 17, and each auxiliary backwash pipe 41 is connected to the main backwash pipe 40. A plurality of water spray holes 43 are arranged at intervals on the upper side of each auxiliary backwash pipe 41, and each auxiliary backwash pipe 41 has an O-shaped structure.

[0036] Further, such as Figure 1-6 As shown, a control panel 27 is installed on the front side of the box body 10 .

[0037] Further, such as Figure 1-5As shown, a first L-shaped partition 53 is fixedly provided on one side of the interior of the second aerated biological filter 18, and a first filter chamber 54 is provided inside the second aerated biological filter 18 separated by the first L-shaped partition 53. The interior of the first filter chamber 54 is filled with activated carbon, and a fourth connecting pipe 56 is provided at the lower side of the interior of the first aerated biological filter 17 and the lower side of the interior of the first filter chamber 54. A third water outlet pipe 55 is provided at the upper side of the interior of the first filter chamber 54, a first detector 61 is installed on the lower side of the first L-shaped partition 53, and a first small water pump is provided inside the fourth connecting pipe 56.

[0038] Further, such as Figure 1-5 As shown, a second L-shaped partition 57 is fixedly provided on one side of the interior of the first aerated biological filter 17, and a second filter chamber 58 is provided inside the first aerated biological filter 17 separated by the second L-shaped partition 57. The interior of the second filter chamber 58 is filled with activated carbon, and a fifth connecting pipe 60 is provided at the lower side of the interior of the second aerated biological filter 18 and the lower side of the interior of the second filter chamber 58. A fourth water outlet pipe 59 is provided at the upper side of the interior of the second filter chamber 58, a second detector 62 is installed at the lower side of the second L-shaped partition 57, a second small water pump is provided inside the fifth connecting pipe 60, and electric ball valves are provided inside the third water outlet pipe 55 and the fourth water outlet pipe 59.

[0039] When in use, sewage with better water quality enters the first sewage chamber 13 through the first water inlet pipe 21, sewage with poorer water quality enters the second sewage chamber 14 through the second water inlet pipe 22, and medicine and clean water enter the water distribution chamber 15 through the third water inlet pipe 23.

[0040] When treating sewage with good water quality, the control panel 27 controls a part of the sewage in the first sewage chamber 13 to enter the first aerated biological filter 17 through the first connecting pipe 24, and another part of the sewage in the first sewage chamber 13 to enter the second aerated biological filter 18 through the second connecting pipe 25; at this time, the sewage falls into the frame 28, and a wave-shaped channel is formed inside the frame 28 through a plurality of third partitions 29, thereby extending the flow distance of the sewage in the frame 28, so as to facilitate multiple filtering effects on the sewage in the frame 28 through a plurality of ceramsite filter layers 30, which can absorb pollutants in the water and remove suspended matter in the water.

[0041] Next, the sewage moves downward through the frame 28, and the air pump 31 is started at this time, so that the air above the box 10 is sucked into the air pump 31 through the air inlet pipe 32, and the air in the air pump 31 enters the main aeration pipe 35 through the air outlet pipe 33, and the air in the main aeration pipe 35 enters into a plurality of auxiliary aeration pipes 36. Finally, the air in the plurality of auxiliary aeration pipes 36 is ejected upward through a plurality of air outlet holes 42, so that the air is fully in contact with the sewage, and the liquid is stirred, so as to accelerate the transfer of oxygen in the air to the liquid, strengthen the contact between organic matter in the sewage and microorganisms and dissolved oxygen, and oxidize and decompose the organic matter in the sewage.

[0042] The sewage after being fully aerated continues to move downward, and is double filtered by the ceramic particle layer 37 and the gravel particle layer 38. At this time, the second water pump 45 is started to pump the medicine and clean water in the water distribution chamber 15 into the second water pump 45 through the third water pipe 46. The mixed solution in the second water pump 45 enters the main backwash pipe 40 through the fourth water pipe 47. The mixed solution in the main backwash pipe 40 enters the several auxiliary backwash pipes 41. The mixed solution in the several auxiliary backwash pipes 41 is sprayed upward through the several water spray holes 43, so as to flush the ceramic particle layer 37 and the gravel particle layer 38 to avoid blockage of the ceramic particle layer 37 and the gravel particle layer 38, and the sewage is chemically neutralized by the medicine in the mixed solution. The water falls to the lower side of the first aerated biological filter 17. Finally, the sewage in the first aerated biological filter 17 is detected by the second detector 62. When the second detector 62 passes the detection, the electric ball valve in the first outlet pipe 19 is opened to discharge the treated sewage in the first aerated biological filter 17 through the first outlet pipe 19. Then the first detector 61 detects the sewage in the second aerated biological filter 18. When the first detector 61 passes the detection, the electric ball valve in the second outlet pipe 20 is opened to discharge the treated sewage in the second aerated biological filter 18 through the second outlet pipe 20, so as to carry out a large amount of treatment in the dual tanks at the same time for the sewage with better water quality, thereby improving the efficiency of sewage treatment.

[0043] When treating sewage with poor water quality, the control panel 27 controls the sewage in the second sewage chamber 14 to enter the first aerated biological filter 17 through the third connecting pipe 26. At this time, the sewage in the first aerated biological filter 17 falls into the frame 28, so that the sewage flows in a wave-like manner in the frame 28, so that the sewage is fully in contact with the plurality of ceramsite filter material layers 30, thereby performing multiple filtering effects on the sewage.

[0044] The sewage continues to move downward, and the air pump 31 is started at this time, so that the air above the box 10 is sucked into the air pump 31 through the air inlet pipe 32, and the air in the air pump 31 enters the main aeration pipe 35 through the air outlet pipe 33, and the air in the main aeration pipe 35 enters the plurality of auxiliary aeration pipes 36, and the air in the plurality of auxiliary aeration pipes 36 is ejected upward through the plurality of air outlet holes 42, so that the air is fully in contact with the sewage, and the organic matter in the sewage is oxidized and decomposed.

[0045] The fully aerated sewage continues to move downward, and is double filtered by the ceramic particle layer 37 and the gravel particle layer 38. At this time, the second water pump 45 is started to pump the medicine and clean water in the water distribution chamber 15 into the second water pump 45 through the third water pipe 46. The mixed solution in the second water pump 45 enters the main backwash pipe 40 through the fourth water pipe 47. The mixed solution in the main backwash pipe 40 enters the several auxiliary backwash pipes 41. The mixed solution in the several auxiliary backwash pipes 41 is sprayed upward through the several water spray holes 43, which can flush the ceramic particle layer 37 and the gravel particle layer 38 to avoid blockage of the ceramic particle layer 37 and the gravel particle layer 38, and the sewage is chemically neutralized by the medicine in the mixed solution. The treated sewage falls to the lower side of the inside of the first aerated biological filter 17.

[0046] At this time, the first water pump 48 is started, and the sewage in the lower side of the first aerated biological filter 17 is pumped into the first water pump 48 through the first water pipe 49. The sewage in the first water pump 48 enters the upper side of the second aerated biological filter 18 through the second water pipe 50. The sewage in the second aerated biological filter 18 is treated in the same manner as the sewage in the first aerated biological filter 17. The sewage is treated again in the second aerated biological filter 18 for multiple sewage treatment, so as to perform double-tank sewage treatment on sewage with poor water quality. Finally, the sewage in the second aerated biological filter 18 is detected by the first detector 61. When the first detector 61 passes the detection, the sewage with poor water quality is fully treated and discharged through the second outlet pipe 20, thereby improving the effect of sewage treatment. In order to be able to treat sewage with different water quality levels, the effect and efficiency of sewage treatment are improved.

[0047] When the second detector 62 detects that the sewage treatment inside the first aerated biological filter 17 is unqualified, the electric ball valves in the first outlet pipe 19, the second outlet pipe 20 and the fourth outlet pipe 59 are all closed, and the electric ball valve in the third outlet pipe 55 is opened, and the first small water pump in the fourth connecting pipe 56 is started to drive the sewage on the lower side of the first aerated biological filter 17 into the lower side of the first filter chamber 54 through the fourth connecting pipe 56. The sewage continuously moves upward in the first filter chamber 54, so that it is fully treated by the activated carbon in the first filter chamber 54, thereby improving the effect of sewage treatment, and finally the sewage in the first filter chamber 54 is discharged through the third outlet pipe 55.

[0048] When the first detector 61 detects that the sewage treatment in the second aerated biological filter 18 is unqualified, at this time, the electric ball valves in the first outlet pipe 19, the second outlet pipe 20 and the third outlet pipe 55 are all closed, and the electric ball valve in the fourth outlet pipe 59 is opened, and the second small water pump in the fifth connecting pipe 60 is started to drive the sewage on the lower side of the second aerated biological filter 18 into the lower side of the second filter chamber 58 through the fifth connecting pipe 60. The sewage continues to move upward in the second filter chamber 58, so that it is fully treated by the activated carbon in the second filter chamber 58, thereby improving the effect of sewage treatment, and finally the sewage in the second filter chamber 58 is discharged through the fourth outlet pipe 59.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. A dual-tank aerated biological filter capable of realizing automatic control, comprising a housing (10), characterized in that: A water distribution box (11) is installed at the upper end of the box body (10), two first partitions (12) are fixedly installed inside the water distribution box (11) at intervals, a water distribution chamber (15) is provided between the two first partitions (12), a first sewage chamber (13) is provided on one side of the water distribution box (11), and a second sewage chamber (14) is provided on the other side of the water distribution box (11), a second partition (16) is fixedly installed in the middle of the box body (10), a first aerated biological filter (17) is provided on one side of the box body (10), and a second aerated biological filter (18) is provided on the other side of the box body (10), a multi-filter assembly (51) is fixedly installed on the upper side of the first aerated biological filter (17), and an aeration assembly (51) is installed on the lower side of the multi-filter assembly (51). A double-layer filter assembly (52) is installed on the lower side of the aeration assembly (34), a backwash assembly (44) is installed on the lower side of the double-layer filter assembly (52), a support plate (39) is fixedly installed on the lower side of the backwash assembly (44), a first water outlet pipe (19) is provided on one side of the lower part of the first aerated biological filter (17), a second water outlet pipe (20) is provided on one side of the lower part of the second aerated biological filter (18), a first water inlet pipe (21) is provided on the first sewage chamber (13), a second water inlet pipe (22) is provided on the second sewage chamber (14), the interior of the first aerated biological filter (17) is the same as the interior structure of the second aerated biological filter (18), and electric ball valves are provided inside the first water outlet pipe (19) and the second water outlet pipe (20).

2. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: A first connecting pipe (24) is provided between the first sewage chamber (13) and the internal upper side of the first aerated biological filter (17), a second connecting pipe (25) is provided between the first sewage chamber (13) and the internal upper side of the second aerated biological filter (18), a third connecting pipe (26) is provided between the second sewage chamber (14) and the internal upper side of the first aerated biological filter (17), a first water pump (48) is installed on the front side of the housing (10), a first water pipe (49) is provided between the first water pump (48) and the internal lower side of the first aerated biological filter (17), and a second water pipe (50) is provided between the first water pump (48) and the internal upper side of the second aerated biological filter (18).

3. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: The multiple filtering assembly (51) comprises a frame (28), the frame (28) being fixed on the upper side of the interior of the first aerated biological filter (17), a plurality of third partitions (29) being fixedly arranged at intervals on both sides of the interior of the frame (28), the plurality of third partitions (29) being staggeredly distributed on both sides of the interior of the frame (28), the plurality of third partitions (29) forming a wave-shaped channel inside the frame (28), and a plurality of ceramsite filter material layers (30) being arranged vertically at intervals inside the frame (28).

4. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: The aeration assembly (34) comprises an air pump (31), the air pump (31) being mounted on one side of the exterior of the housing (10), an air inlet pipe (32) being fixedly disposed on the upper side of the air pump (31), an air outlet pipe (33) being fixedly disposed on the lower side of the air pump (31), a main aeration pipe (35) being fixedly disposed in the middle of the interior of the housing (10), the main aeration pipe (35) penetrating the second partition (16), the main aeration pipe (35) being located in the interior of the first aerated biological filter (17) and the interior of the second aerated biological filter (18), the main aeration pipe (35) being communicated with the air outlet pipe (33), a plurality of auxiliary aeration pipes (36) being fixedly disposed at intervals in the middle of the interior of the first aerated biological filter (17), each of the auxiliary aeration pipes (36) being communicated with the main aeration pipe (35).

5. The double-tank aerated biological filter capable of realizing automatic control according to claim 4, characterized in that: Each of the auxiliary aeration pipes (36) has an O-shaped structure, and a plurality of air outlet holes (42) are provided on the upper side of each of the auxiliary aeration pipes (36).

6. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: The double-layer filter assembly (52) comprises a ceramic granular layer (37), wherein the ceramic granular layer (37) is filled on the lower side of the interior of the first aerated biological filter (17), and a gravel granular layer (38) is provided on the lower side of the ceramic granular layer (37).

7. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: The backwashing assembly (44) comprises a second water pump (45), the second water pump (45) is installed on the outer side of the housing (10), the water distribution chamber (15) is provided with a third water inlet pipe (23), the second water pump (45) is connected to the inside of the water distribution chamber (15) and is provided with a third water pipe (46), a main backwashing pipe (40) is installed on the lower side of the interior of the housing (10), the main backwashing pipe (40) passes through the second partition (16), and the backwashing pipe (40) is located at the first aerated biological filter ( The interior of the first aerated biological filter (17) is connected to the interior of the second aerated biological filter (18); a fourth water pipe (47) is provided between the interior of the main backwash pipe (40) and the second water pump (45); a plurality of auxiliary backwash pipes (41) are provided at intervals on the lower side of the interior of the first aerated biological filter (17); each of the auxiliary backwash pipes (41) is connected to the main backwash pipe (40); a plurality of water spray holes (43) are provided at intervals on the upper side of each of the auxiliary backwash pipes (41); and each of the auxiliary backwash pipes (41) is in an O-shaped structure.

8. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: A control panel (27) is installed on the front side of the box (10).

9. The double-tank aerated biological filter capable of realizing automatic control according to claim 1, characterized in that: A first L-shaped partition (53) is fixedly provided on one side of the interior of the second aerated biological filter (18); a first filter chamber (54) is provided inside the second aerated biological filter (18) through the first L-shaped partition (53); the interior of the first filter chamber (54) is filled with activated carbon; a fourth connecting pipe (56) is provided on the lower side of the interior of the first aerated biological filter (17) and in communication with the lower side of the interior of the first filter chamber (54); a third water outlet pipe (55) is provided on the upper side of the interior of the first filter chamber (54); a first detector (61) is installed on the lower side of the first L-shaped partition (53); and a first small water pump is provided inside the fourth connecting pipe (56).

10. The double-tank aerated biological filter capable of realizing automatic control according to claim 9, characterized in that: A second L-shaped partition (57) is fixedly provided on one side of the interior of the first aerated biological filter (17); a second filter chamber (58) is provided inside the first aerated biological filter (17) through the second L-shaped partition (57); the interior of the second filter chamber (58) is filled with activated carbon; a fifth connecting pipe (60) is provided on the lower side of the interior of the second aerated biological filter (18) and is in communication with the lower side of the interior of the second filter chamber (58); a fourth water outlet pipe (59) is provided on the upper side of the interior of the second filter chamber (58); a second detector (62) is installed on the lower side of the second L-shaped partition (57); a second small water pump is provided inside the fifth connecting pipe (60); and electric ball valves are provided inside the third water outlet pipe (55) and the fourth water outlet pipe (59).

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