Auxiliary circulation system and circulation clarifier comprising same

Abstract

The utility model discloses an auxiliary circulation system and a circulation clarifier comprising the same, and relates to the technical field of sewage treatment. The auxiliary circulation system comprises an air inlet pipe, an auxiliary circulation pipe and a pipeline fixing device; the air inlet pipe is externally connected with air inlet equipment; the auxiliary circulating pipe is communicated with the air inlet pipe, and a plurality of air holes are formed in the auxiliary circulating pipe at intervals; the pipeline fixing device comprises a connecting rod and at least two pull rods; the two ends of the connecting rod are fixedly connected with the bottom ends of the pull rods respectively; the air inlet pipe is arranged on any one of the pull rods; and the auxiliary circulating pipe is arranged on the connecting rod. The auxiliary circulation system provided by the utility model is of an assembled structure, the air inlet pipe and the auxiliary circulation pipe can be assembled outside a reactor or equipment needing to enhance the airlift circulation effect through the pipeline fixing device on the premise that a sewage treatment project is not stopped, the installation is convenient, the operation is simple, and the cost is low. And online transformation in the operation process of the reactor or equipment can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an auxiliary circulation system and a circulation clarifier comprising the same. Background Art

[0002] During the operation of sewage treatment projects, the actual influent water quality of some projects does not meet the design, and the pollutant concentration is far lower than the designed water quality. Therefore, the actual aeration volume at the bottom of the aeration tank is low during operation, resulting in insufficient aeration intensity. The circulation dynamics of the circulating clarifier installed in the aeration tank are insufficient, causing sludge accumulation in the internal sedimentation area and carrying a large amount of sludge in the effluent, affecting the sewage treatment effect. For sewage treatment projects that have been completed and are continuously operating, in order to avoid affecting the stability and safety of the existing operating system, it is necessary to solve the problems of sludge accumulation in the circulating clarifier and sludge leakage in the effluent without stopping production, improve the airlift circulation dynamics of the circulating clarifier, and ensure the stability of the effluent water quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is that insufficient circulation leads to sludge accumulation inside the circulation clarifier and sludge leakage in the outlet water, thus affecting the sewage treatment effect.

[0004] In order to solve the above problems, the present invention proposes the following technical solutions:

[0005] An auxiliary circulation system includes an air intake pipe, an auxiliary circulation pipe, and a pipe fixing device;

[0006] The air intake pipe is externally connected to an air intake device;

[0007] The auxiliary circulation pipe is connected to the air inlet pipe, and a plurality of air holes are arranged at intervals on the auxiliary circulation pipe;

[0008] The pipeline fixing device includes a connecting rod and at least two pull rods; the two ends of the connecting rod are respectively fixedly connected to the bottom ends of the pull rods;

[0009] The air inlet pipe is arranged on any one of the pull rods; the auxiliary circulation pipe is arranged on the connecting rod.

[0010] In this solution, the auxiliary circulation system and the circulation clarifier can be fixedly installed, and the gas is input from the air inlet pipe and output from multiple air holes on the auxiliary circulation pipe. This can enhance the circulation effect of the sewage, promote the scouring of the sludge at the bottom of the circulation clarifier by the sewage, and enhance the mud-water separation effect of the circulation clarifier in the aeration tank, ultimately solving the problem of insufficient sewage circulation during project operation, sludge accumulation inside the reactor, and affected effluent water quality.

[0011] A further technical solution is that the pipeline fixing device also includes a base, and the top end of the pull rod is movably connected to the base.

[0012] Its further technical solution is that the base includes a first vertical square tube, a first hook and a first horizontal square tube, and the first hook and the first horizontal square tube are respectively arranged on both sides of the first vertical square tube; the first vertical square tube is sleeved on the top of the pull rod and is movably connected to the top of the pull rod through a screw assembly; the first vertical square tube and the top of the pull rod are connected by a screw assembly to adjust the distance of the first vertical square tube sleeved into the pull rod.

[0013] A further technical solution is that the first vertical square tube is provided with an elongated pin hole, the pull rod is provided with a matching pin hole, and the first vertical square tube and the pull rod are connected by a pin.

[0014] A further technical solution is that a second horizontal square tube is provided at the bottom end of the pull rod, a second hook is provided on the second horizontal square tube, the first hook and the second hook are located on the same side of the pull rod, the opening of the first hook faces downward, and the opening of the second hook faces upward.

[0015] Its further technical solution is that the pipeline fixing device also includes a support tube and a second vertical square tube, the second vertical square tube is arranged at one end of the connecting rod, the second vertical square tube is fixedly connected to the bottom end of the pull rod, the support tube connects the second vertical square tube and the connecting rod, and the support tube, the second vertical square tube and the connecting rod form a triangle.

[0016] A further technical solution is that a one-way conduction valve is provided in the air hole.

[0017] A further technical solution is that a U-shaped baffle is provided on the connecting rod, and the auxiliary circulation pipe is fixedly fastened to the U-shaped baffle by a U-shaped buckle, and the U-shaped buckle is buckled with the U-shaped baffle.

[0018] A further technical solution is that a PVC pipe clamp is provided on the pull rod, and the air inlet pipe is fixedly fastened to the pull rod through the PVC pipe clamp.

[0019] The utility model also provides a circulating clarifier, comprising a circulating clarifier body and the auxiliary circulating system.

[0020] A further technical solution is that the air inlet pipe and the auxiliary circulating flow pipe are arranged on the circulating flow clarifier through a pipe fixing device.

[0021] Compared with the prior art, the technical effects achieved by this utility model include:

[0022] The auxiliary circulation system provided by the utility model is an assembled structure. Under the premise that the sewage treatment project does not stop production, the air inlet pipe and the auxiliary circulation pipe can be assembled to the outside of the reactor or equipment where the air lift circulation effect needs to be enhanced through the pipe fixing device. It is easy to install and simple to operate, and can realize online transformation during the operation of the reactor or equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of the auxiliary circulation system provided in an embodiment of the present utility model;

[0025] Figure 2 A schematic structural diagram of a base of an auxiliary circulation system provided in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 The main view;

[0027] Figure 4 Schematic diagram of the structure of the screw assembly;

[0028] Figure 5 A schematic diagram of the structure of the pull rod of the auxiliary circulation system provided by an embodiment of the present utility model, in which A is a partial enlarged view;

[0029] Figure 6 A schematic structural diagram of the connecting rod of the auxiliary circulation system provided by an embodiment of the present utility model;

[0030] Figure 7 A schematic structural diagram of a circulating clarifier containing an auxiliary circulating system provided in an embodiment of the present invention.

[0031] Reference numerals

[0032] Auxiliary circulation system 4;

[0033] Intake pipe 1;

[0034] Auxiliary circulation pipe 2, air hole 21;

[0035] Pipeline fixing device 3, base 31, pull rod 32, connecting rod 33;

[0036] First hook 311, first vertical square tube 312, first horizontal square tube 313, foam silicone gasket 314, round hole 315, screw assembly 316, elongated pin hole 317;

[0037] Stainless steel hexagon flange cylindrical screw 3161, stainless steel square washer 3162, stainless steel nut 3163;

[0038] Second hook 321, second transverse square tube 323, rib 324, adapter pin hole 325;

[0039] Second vertical square tube 331, support tube 332;

[0040] U-shaped baffle 34, U-shaped buckle 35, PVC pipe clamp 36;

[0041] Circulation clarifier body 5, side plates 51, and bottom plate 52. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0043] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0044] It should also be understood that the terms used in this specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0045] Example 1

[0046] See also Figure 1-6 , the embodiment of the present utility model provides an auxiliary circulation system 4, which includes an intake pipe 1, an auxiliary circulation pipe 2 and a pipe fixing device 3;

[0047] The air intake pipe 1 is externally connected to an air intake device;

[0048] The auxiliary circulation pipe 2 is connected to the air inlet pipe 1, and a plurality of air holes 21 are provided on the auxiliary circulation pipe 2 at intervals;

[0049] The pipeline fixing device 3 includes a connecting rod 33 and at least two pull rods 32; the two ends of the connecting rod 33 are fixedly connected to the bottom ends of the pull rods 32 respectively;

[0050] The air intake pipe 1 is arranged on any one of the pull rods 32 ; the auxiliary circulation pipe 2 is arranged on the connecting rod 33 .

[0051] In this embodiment, one end of the air intake pipe 1 is equipped with a flexible joint, the other end of the air intake pipe 1 is connected to one end of the auxiliary circulation pipe 2 through an elbow, and the other end of the auxiliary circulation pipe 2 is equipped with a plug.

[0052] See further Figure 2-4 In this embodiment, the pipeline fixing device 3 further includes a base 31 , and the top end of the pull rod 32 is movably connected to the base 31 .

[0053] In a specific embodiment, the base 31 is welded together by a first hook 311, a first vertical square tube 312, and a first transverse square tube 313. The first hook 311 and the first transverse square tube 313 are respectively connected to the left and right sides of the upper end of the first vertical square tube 312. The first hook 311 opens downward and is equipped with a foam silicone gasket 314 on the inside to enhance the friction of the hook's fixation. The top of the first vertical square tube 312 has a circular hole 315, which corresponds to the insertion of a screw assembly 316. The front side has an elongated pin hole 317.

[0054] The provision of the first transverse square tube 313 makes it easier for an operator to grip the pipeline fixing device 3 .

[0055] Furthermore, the screw assembly 316 is composed of a stainless steel hexagonal flange cylindrical screw 3161, a stainless steel square washer 3162 and a stainless steel nut 3163, and the square washer 3162 and the nut 3163 are sequentially mounted on the cylindrical screw 3161 from top to bottom.

[0056] Specifically, the pull rod 32 is a square tube, the size of the first vertical square tube 312 is larger than the size of the pull rod 32, the first vertical square tube 312 is sleeved and installed on the outside of the pull rod 32, and the base 31 and the pull rod 32 are connected and fixed with the pin (not shown in the figure) through the screw assembly 316 to control the overlapping height.

[0057] Specifically, the screw assembly 316 is inserted into the circular hole 315 at the top of the first vertical square tube 312 and enters the interior of the pull rod 32. By rotating the screw of the screw assembly 316, the overlapping height of the pull rod 32 and the base 31 can be controlled, that is, the first vertical square tube 312 can be extended and retracted in the vertical direction after being inserted into the pull rod 32, and the extension length is controlled by the screw assembly 316; the pin (not shown in the figure) is inserted into the elongated pin hole 317 of the first vertical square tube 312 and enters the matching pin hole 325 of the pull rod 32, further fixing the first vertical square tube 312 and the pull rod 32 to prevent the connection between the two from falling off.

[0058] In this embodiment, the first vertical square tube 312 and the top end of the pull rod 32 are connected by a screw assembly 316 to adjust the distance between the first vertical square tube 312 and the pull rod 32. The first vertical square tube 312 is provided with an elongated pin hole 317, and the pull rod 32 is provided with an adapter pin hole 325. The first vertical square tube 312 and the pull rod 32 are connected by a pin.

[0059] See further Figure 5 In this embodiment, the pull rod 32 includes a second hook 321, a second horizontal square tube 323, and a rib 324. The second horizontal square tube 323 is welded and fixed to the bottom end of the pull rod 32; the second hook 321 opens upward and is welded to the top of the second horizontal square tube 323; one end of the rib 324 is provided with a right-angle opening, which is clamped on the second hook 321, and the other end is connected to the left side of the pull rod 32. The angle between the rib 324 and the second horizontal square tube 323 is less than 90 degrees. The rib 324 is used to enhance the fixing effect of the second hook 321.

[0060] It should be noted that, in the pipe fixing device 3 of this embodiment, the first hook 311 and the second hook 321 are located on the same side of the pull rod 32, the opening of the first hook 311 faces downward, and the opening of the second hook 321 faces upward, so as to facilitate the assembly and fixation of the pipe fixing device 3 and the external equipment.

[0061] See further Figure 6 In the auxiliary circulation system 4 of this embodiment, the pipeline fixing device 3 also includes a support tube 332 and a second vertical square tube 331. One end of each connecting rod 33 is welded to the second vertical square tube 331. The two ends of the support tube 332 are respectively welded to the second vertical square tube 331 and the connecting rod 33. The support tube 332, the second vertical square tube 331, and the connecting rod 33 form a triangular structure, which provides a stable support. Both ends of the connecting rod 33 have this triangular structure.

[0062] In this embodiment, the second vertical square tube 331 is fixed to the bottom end of the pull rod 32 by screws, and the pull rod 32 is provided with corresponding screw holes.

[0063] In this embodiment, a one-way valve is provided in the air hole 21 to avoid blockage.

[0064] In a specific embodiment, a U-shaped baffle plate 34 is provided on the connecting rod 33 , and the auxiliary circulation pipe 2 is fixedly fastened to the U-shaped baffle plate 34 via a U-shaped buckle 35 , and the U-shaped buckle 35 is buckled with the U-shaped baffle plate 34 .

[0065] The U-shaped baffle 34 is made of stainless steel, and the U-shaped buckle 35 is made of stainless steel.

[0066] The U-shaped baffle 34 is welded to the bottom of the connecting rod 33 .

[0067] The tie rod 32 is provided with a PVC pipe clamp 36, and the air intake pipe 1 is fixedly fastened to the tie rod 32 via the PVC pipe clamp 36. In this embodiment, the tie rod 32 used to fix the air intake pipe 1 is provided with a PVC pipe clamp 36 to fix the air intake pipe 1. The PVC pipe clamp 36 is fixed to the tie rod 32 with screws. Furthermore, the tie rod 32 is provided with corresponding screw holes for installing screws.

[0068] Example 2

[0069] See also Figure 7 This embodiment provides a circulating clarifier, which includes the auxiliary circulating system 4 that can be installed without stopping production and the circulating clarifier body 5 as described in the above embodiment.

[0070] In a specific implementation, the circulating clarifier body 5 includes side panels 51 and a bottom panel 52. Several side panels 51 are connected end to end in sequence. The bottom panel 52 is connected to the lower edge of the side panels 51. The bottom panel 52 encloses the lower bottom of the circulating clarifier body 5 to form a conical bottom with the top angle facing downward. However, the bottom panel 52 of the main body is not closed.

[0071] In a specific implementation, the pipeline installation and fixing device 3 of the auxiliary circulation system 4 is composed of three pull rods 32 , three bases 31 , two connecting rods 33 , four second vertical square tubes 331 and four support tubes 332 .

[0072] In a specific implementation, the air intake pipe 1 of the auxiliary circulation system 4 is fixedly mounted on the pull rod 32 , and the auxiliary circulation pipe 2 of the auxiliary circulation system 4 is fixedly mounted on the connecting rod 33 .

[0073] In a specific implementation, the second hook 321 of the auxiliary circulation system 4 is hooked on the bend of the bottom plate 52 of the circulation clarifier body 5, and the first hook 311 is hooked on the upper crossbeam of the side plate 51 of the circulation clarifier body 5, thereby realizing the fixed installation of the auxiliary circulation system outside the circulation clarifier.

[0074] The present application can be used in the sewage treatment project without stopping production. When the aeration tank and the circulation clarifier in the aeration tank are full of sewage, by holding the first horizontal square tube 312 on the base 31 of the auxiliary circulation system 4, the first hook 311 on the base 31 and the second hook 321 on the pull rod 32 are adjusted to the docking position with the circulation clarifier body 5, and then the screw assembly 316 is tightened to fix the position of the base 31 and the pull rod 32, thereby installing and fixing the auxiliary circulation system 4 on the outside of the circulation clarifier body 5, and the air inlet pipe 1 of the auxiliary circulation system 4 is connected to the external aeration facility. The gas is input from the air inlet pipe 1 and output from the auxiliary circulation pipe 2, which can enhance the circulation effect of sewage, promote the flushing of sludge at the bottom of the circulation clarifier by sewage, and enhance the mud-water separation effect of the circulation clarifier in the aeration tank, and ultimately solve the problem of insufficient sewage circulation during project operation, sludge accumulation inside the reactor, and affected effluent water quality.

[0075] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0076] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An auxiliary circulation system, characterized in that: It includes an air intake pipe, an auxiliary circulation pipe and a pipe fixing device; The air intake pipe is externally connected to an air intake device; The auxiliary circulation pipe is connected to the air inlet pipe, and a plurality of air holes are arranged at intervals on the auxiliary circulation pipe; The pipeline fixing device includes a connecting rod and at least two pull rods; the two ends of the connecting rod are respectively fixedly connected to the bottom ends of the pull rods; The air inlet pipe is arranged on any one of the pull rods; the auxiliary circulation pipe is arranged on the connecting rod.

2. The auxiliary circulation system according to claim 1, characterized in that: The pipeline fixing device also includes a base, and the top end of the pull rod is movably connected to the base.

3. The auxiliary circulation system according to claim 2, characterized in that: The base includes a first vertical square tube, a first hook and a first horizontal square tube, and the first hook and the first horizontal square tube are respectively arranged on both sides of the first vertical square tube; the first vertical square tube is sleeved on the top of the pull rod and is movably connected to the top of the pull rod through a screw assembly; the first vertical square tube and the top of the pull rod are connected by a screw assembly to adjust the distance of the first vertical square tube sleeved into the pull rod.

4. The auxiliary circulation system according to claim 3, characterized in that: The first vertical square tube is provided with an elongated pin hole, the pull rod is provided with a matching pin hole, and the first vertical square tube and the pull rod are connected via a pin.

5. The auxiliary circulation system according to claim 3, characterized in that: A second transverse square tube is provided at the bottom end of the pull rod, and a second hook is provided on the second transverse square tube. The first hook and the second hook are located on the same side of the pull rod, the opening of the first hook faces downward, and the opening of the second hook faces upward.

6. The auxiliary circulation system according to claim 1, characterized in that: The pipeline fixing device also includes a support tube and a second vertical square tube. The second vertical square tube is arranged at one end of the connecting rod. The second vertical square tube is fixedly connected to the bottom end of the pull rod. The support tube connects the second vertical square tube and the connecting rod. The support tube, the second vertical square tube and the connecting rod form a triangle.

7. The auxiliary circulation system according to claim 1, characterized in that: A one-way conducting valve is provided in the air hole.

8. The auxiliary circulation system according to claim 1, characterized in that: A U-shaped baffle is provided on the connecting rod, and the auxiliary circulation pipe is fixedly fastened to the U-shaped baffle through a U-shaped buckle, and the U-shaped buckle is buckled with the U-shaped baffle.

9. The auxiliary circulation system according to claim 1, characterized in that: The pull rod is provided with a PVC pipe clamp, and the air inlet pipe is fixedly fastened to the pull rod through the PVC pipe clamp.

10. A loop clarifier, characterized in that: It comprises a circulating clarifier body and the auxiliary circulating system according to any one of claims 1 to 9.

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