Rural sewage multi-stage biological treatment device

Abstract

The utility model discloses a multi-stage biological treatment device for rural sewage, and relates to the technical field of sewage treatment devices, the multi-stage biological treatment device comprises a sedimentation tank assembly, a fishing mechanism and a multi-stage treatment mechanism, and the fishing mechanism comprises a first motor, a screw rod, a mounting plate, a second motor, a connecting rod, a rotating rod, a stirring paddle, a filter plate and filter holes. According to the utility model, the fishing mechanism is arranged, so that floccules and particulate matters settled on the filter plate can be fished out of the settling pond and guided into the collecting pond in time through the fishing mechanism after the floccules and the particulate matters are settled in actual use; the problems of low sewage treatment efficiency and shortened service life of equipment caused by blockage of the sewage treatment equipment due to the floccules and the particulate matters are avoided after the floccules and the particulate matters are accumulated in the sedimentation tank, and the sewage treatment equipment is very convenient to use, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment devices, and particularly relates to a multi-stage biological treatment device for rural sewage. Background Art

[0002] The discharge of domestic sewage in rural areas of our country is large, and most of the domestic sewage is directly discharged into the environment without treatment, which poses a serious threat to the ecological environment in rural areas and the drinking water safety of local residents. Rural households are scattered, with large topographical differences, making it difficult to lay pipe networks and requiring a large amount of capital investment. Therefore, the in-situ modular sewage treatment technology has significant advantages for treating rural sewage.

[0003] The utility model patent with the publication number CN 206940692 U discloses a multi-stage sewage biological treatment device, which includes a sedimentation tank, an anaerobic tank, an aeration tank and a filtration tank. The left side wall of the sedimentation tank is connected with a water inlet pipe, and a water pump is arranged on the water inlet pipe. A flocculant pipe is arranged at the top inside the sedimentation tank; the sedimentation tank is connected with the anaerobic tank through a water pipe; several ventilation holes are arranged at the top of the aeration tank, and a reduction motor is arranged at the bottom of the aeration tank. The motor shaft at the top of the reduction motor is connected with a rotating shaft, and a stirring blade and a spiral blade are installed on the rotating shaft. The stirring blade and the spiral blade are located inside the aeration tank; the aeration tank is connected with the filtration tank through a water pipe; a cover plate is arranged at the top of the filtration tank, and a filter screen plate, a softening resin layer and an activated carbon layer are arranged in the filtration tank from top to bottom in sequence. The bottom of the right side wall of the filtration tank is connected with a water outlet pipe. This utility model combines physical method, chemical method and biological method to treat sewage, so as to ensure that the treated water quality reaches a higher standard.

[0004] However, there are still some disadvantages in the actual use of the above device. The more obvious one is that after the flocculants are used for the precipitation of flocs in the sedimentation tank of the device, the flocs still remain at the bottom of the sedimentation tank, and are prone to accumulation after long-term use. Moreover, rural sewage often contains large-volume garbage such as vegetable leaves and plastics or particulate pollutants such as sediment. The mixing of flocs and particulate pollutants easily causes blockage of the sewage treatment equipment, resulting in low sewage treatment efficiency and shortening the service life of the equipment.

[0005] Therefore, it is necessary to invent a multi-stage biological treatment device for rural sewage to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a multi-stage biological treatment device for rural sewage, by setting a fishing mechanism to solve the problem that the mixing of flocs and particulate pollutants easily causes blockage of the sewage treatment equipment, resulting in low sewage treatment efficiency and shortening the service life of the equipment as mentioned in the above background art.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: A multi-stage biological treatment device for rural sewage, comprising:

[0008] A sedimentation tank assembly, the sedimentation tank assembly includes a sedimentation tank main body and a mounting frame, and the mounting frame is fixedly connected to the outside of the sedimentation tank main body;

[0009] A salvage mechanism, the salvage mechanism includes a first motor, a screw rod, a mounting plate, a second motor, a connecting rod, a rotating rod, a stirring paddle, a filter plate and filter holes. The first motor is fixedly connected to the inner bottom of the mounting frame. One end of the screw rod is fixedly connected above the output end of the first motor, and the other end of the screw rod is rotatably connected to the top of the mounting frame through a bearing. The mounting plate is threadedly sleeved on the outside of the screw rod and is slidably connected to the mounting frame. The second motor is fixedly connected above the mounting plate and the output end of the second motor passes through the mounting plate. The connecting rod is fixedly connected below the second motor. The rotating rod is rotatably connected to the connecting rod through a pin shaft and is located below the connecting rod. The stirring paddle is fixedly connected to the outside of the rotating rod. The filter plate is fixedly connected to the bottom of the connecting rod. The filter holes are opened on the surface of the filter plate;

[0010] A multi-stage treatment mechanism, the multi-stage treatment mechanism is fixedly connected to the outside of the sedimentation tank assembly.

[0011] For the multi-stage biological treatment device for rural sewage according to at least one embodiment of the present disclosure, the sedimentation tank assembly further includes a base, a mounting table, a water pump, a water inlet pipe and a collection tank. The base is fixedly connected below the sedimentation tank. The mounting table is fixedly connected above the base. The water pump is fixedly connected above the mounting table. The water inlet pipe is fixedly connected to the outside of the water pump. The collection tank is located above the base and outside the sedimentation tank main body.

[0012] For the multi-stage biological treatment device for rural sewage according to at least one embodiment of the present disclosure, the multi-stage treatment mechanism includes an anaerobic tank, a U-shaped pipe, an aeration tank, a blower, an air inlet pipe, a filtration tank and a water outlet pipe.

[0013] For the multi-stage biological treatment device for rural sewage according to at least one embodiment of the present disclosure, the anaerobic tank is fixedly connected above the base, the U-shaped pipe is fixedly connected to the outside of the anaerobic tank, the aeration tank is fixedly connected above the base and is fixedly connected to the U-shaped pipe. The blower is fixedly connected to the bottom of the aeration tank. The air inlet pipe is fixedly connected to the outside of the blower and extends into the aeration tank. The filtration tank is fixedly connected above the base and is located outside the aeration tank. The water outlet pipe is fixedly connected to the bottom of the filtration tank.

[0014] The technical effects and advantages of the present utility model:

[0015] The utility model is provided with a salvage mechanism, so that when in actual use, after flocs and particulate matters precipitate, the salvage mechanism can timely salvage the flocs and particulate matters deposited on the filter plate from the sedimentation tank and introduce them into the collection tank, avoiding the accumulation of flocs and particulate matters in the sedimentation tank and then mixing into the interior of subsequent treatment equipment, and avoiding the problems that the sewage treatment equipment is blocked by flocs and particulate matters, resulting in low sewage treatment efficiency and shortening the service life of the equipment. Moreover, it is very convenient to use and improves the sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0017] Figure 1 is a front view of the overall structure of a rural sewage multi-stage biological treatment device according to an embodiment of the present disclosure.

[0018] Figure 2 is a schematic diagram of the overall structure of a rural sewage multi-stage biological treatment device according to an embodiment of the present disclosure.

[0019] Figure 3 is a schematic diagram of the salvage structure of a rural sewage multi-stage biological treatment device according to an embodiment of the present disclosure.

[0020] Figure 4 is a sectional view of the salvage structure of a rural sewage multi-stage biological treatment device according to an embodiment of the present disclosure.

[0021] The specific reference numerals in the drawings are as follows:

[0022] Sedimentation tank assembly; 11, sedimentation tank body; 12, mounting frame; 13, base; 14, mounting table; 15, water pump; 16, inlet pipe; 17, collection tank;

[0023] Salvage mechanism; 21, first motor; 22, screw rod; 23, mounting plate; 24, second motor; 25, connecting rod; 26, rotating rod; 27, stirring paddle; 28, filter plate; 29, filter holes;

[0024] Multi-stage treatment mechanism; 31, anaerobic tank; 32, U-shaped pipe; 33, aeration tank; 34, blower; 35, inlet pipe; 36, filtration tank; 37, outlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the drawings.

[0026] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and embodiments.

[0027] Unless otherwise specified, the exemplary embodiments / examples shown will be understood to provide exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, without departing from the technical concept of the present disclosure, the features of various embodiments / examples can be additionally combined, separated, interchanged, and / or rearranged.

[0028] In the drawings, cross - hatching and / or shading are generally used to make the boundaries between adjacent components clear. Thus, unless stated otherwise, the presence or absence of cross - hatching or shading does not convey or imply any preference or requirement regarding the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. Further, in the drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences can be performed in an order different from that described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. Additionally, the same reference numerals denote the same components.

[0029] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on the other component, directly connected to or directly coupled to the other component, or there can be an intermediate component. However, when the component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there is no intermediate component. For this reason, the term "connected" can refer to a physical connection, an electrical connection, etc., and can have or not have an intermediate component.

[0030] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "below," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "below" or "beneath" other components or features would then be positioned "above" the other components or features. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0031] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or provided values ​​that will be recognized by those of ordinary skill in the art.

[0032] Figure 1 It is a schematic diagram of the overall structure of a multi-stage biological treatment device for rural sewage according to an embodiment of the present disclosure.

[0033] like Figures 1-4 As shown, the rural sewage multi-stage biological treatment device disclosed in the present invention may include: a sedimentation tank assembly 1, a salvaging mechanism 2, a multi-stage treatment mechanism 3 and other components.

[0034] Figure 2 It is a schematic diagram of the overall structure of a multi-stage biological treatment device for rural sewage according to an embodiment of the present disclosure.

[0035] like Figure 2As shown, in the present disclosure, the sedimentation tank assembly 1 includes a sedimentation tank body 11, a mounting frame 12, a base 13, a mounting platform 14, a water pump 15, a water inlet pipe 16 and a collecting tank 17, wherein the mounting frame 12 is fixedly connected to the outside of the sedimentation tank body 11, the base 13 is fixedly connected below the sedimentation tank, the mounting platform 14 is fixedly connected above the base 13, the water pump 15 is fixedly connected above the mounting platform 14, the water inlet pipe 16 is fixedly connected to the outside of the water pump 15, and the collecting tank 17 is located above the base 13 and outside the sedimentation tank body 11.

[0036] Thus, the operator can first turn on the water pump 15 to pump the sewage into the sedimentation tank through the water inlet pipe 16 for sedimentation.

[0037] Figure 3 It is a schematic diagram of the salvage structure of a multi-stage biological treatment device for rural sewage according to an embodiment of the present disclosure.

[0038] Figure 4 It is a cross-sectional view of the salvage structure of a multi-stage biological treatment device for rural sewage according to one embodiment of the present disclosure.

[0039] like Figures 3-4 As shown, in a preferred embodiment, the salvage mechanism 2 includes a first motor 21, a screw 22, a mounting plate 23, a second motor 24, a connecting rod 25, a rotating rod 26, a stirring paddle 27, a filter plate 28 and a filter hole 29, wherein the first motor 21 is fixedly connected to the inner bottom of the mounting frame 12, one end of the screw 22 is fixedly connected to the top of the output end of the first motor 21, and the other end of the screw 22 is rotatably connected to the top of the mounting frame 12 through a bearing, the mounting plate 23 is threadedly sleeved on the outside of the screw 22 and is slidably connected to the mounting frame 12, the second motor 24 is fixedly connected above the mounting plate 23 and the output end of the second motor 24 passes through the mounting plate 23, the connecting rod 25 is fixedly connected to the bottom of the second motor 24, the rotating rod 26 is rotatably connected to the connecting rod 25 through a pin and is located below the connecting rod 25, the stirring paddle 27 is fixedly connected to the outside of the rotating rod 26, the filter plate 28 is fixedly connected to the bottom of the connecting rod 25, and the filter hole 29 is opened on the surface of the filter plate 28.

[0040] Therefore, after the sewage enters the sedimentation tank, the operator first adds flocculant into the sedimentation tank and then turns on the second motor 24. The second motor 24 rotates to drive the connecting rod 25 to rotate, and the connecting rod 25 rotates to drive the rotating rod 26 to rotate. When the rotating rod 26 drives the stirring paddle 27 to rotate, the flocculant and the sewage are fully mixed and the water floccules are precipitated. After the floccules and particulate matter are precipitated, the operator turns off the second motor 24 and then turns on the first motor 21. The first motor 21 rotates to drive the screw 22 to rotate. The screw 22 rotates to drive the mounting plate 23 to slide upward on the mounting frame 12. The sliding of the mounting plate 23 drives the connecting rod 25 and the rotating rod 26 to move. The rotating rod 26 moves and drives the filter plate 28 to move up until it rises above the sedimentation tank. Then the operator rotates the rotating rod 26 to guide the floccules and sediments into the collecting tank 17 to complete the salvage of the floccules and particulate matter. Then the operator reverses the first motor 21 to drive the filter plate 28 to move downward back to the bottom of the sedimentation tank.

[0041] Figure 2 It is a schematic diagram of the overall structure of a multi-stage biological treatment device for rural sewage according to an embodiment of the present disclosure.

[0042] like Figure 2 As shown, in the present disclosure, the multi-stage treatment mechanism 3 includes an anaerobic tank 31, a U-shaped tube 32, an aeration tank 33, a fan 34, an air inlet pipe 35, a filter tank 36 and an outlet pipe 37, wherein the anaerobic tank 31 is fixedly connected to the top of the base 13, the U-shaped tube 32 is fixedly connected to the outside of the anaerobic tank 31, the aeration tank 33 is fixedly connected to the top of the base 13 and is fixedly connected to the U-shaped tube 32, the fan 34 is fixedly connected to the bottom of the aeration tank 33, the air inlet pipe 35 is fixedly connected to the outside of the fan 34 and extends into the aeration tank 33, the filter tank 36 is fixedly connected to the top of the base 13 and is located outside the aeration tank 33, and the outlet pipe 37 is fixedly connected to the bottom of the filter tank 36.

[0043] Therefore, the sewage after sedimentation and salvage in the sedimentation tank first enters the anaerobic tank 31 for treatment, and the treated sewage then enters the aeration tank 33 for treatment. At this time, the operator turns on the fan 34 to send oxygen into the aeration tank 33 through the air inlet pipe 35 to mix with the sewage. Finally, the sewage enters the filter tank 36 for filtration, and after the filtration is completed, it flows out of the treatment device through the outlet pipe 37.

[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A multi-stage biological treatment device for rural sewage, characterized in that: include: A sedimentation tank assembly (1), the sedimentation tank assembly (1) comprising a sedimentation tank body (11) and a mounting frame (12), the mounting frame (12) being fixedly connected to the outside of the sedimentation tank body (11); A salvaging mechanism (2), the salvaging mechanism (2) comprising a first motor (21), a screw (22), a mounting plate (23), a second motor (24), a connecting rod (25), a rotating rod (26), a stirring paddle (27), a filter plate (28) and a filter hole (29), the first motor (21) being fixedly connected to the bottom of the mounting frame (12), one end of the screw (22) being fixedly connected to the top of the output end of the first motor (21), the other end of the screw (22) being rotatably connected to the top of the mounting frame (12) via a bearing, and the mounting plate (23) being threadedly sleeved on the screw ( The second motor (24) is fixedly connected to the top of the mounting plate (23) and the output end of the second motor (24) passes through the mounting plate (23). The connecting rod (25) is fixedly connected to the bottom of the second motor (24). The rotating rod (26) is rotatably connected to the connecting rod (25) through a pin and is located below the connecting rod (25). The stirring paddle is fixedly connected to the outside of the rotating rod (26). The filter plate (28) is fixedly connected to the bottom of the connecting rod (25). The filter hole (29) is provided on the surface of the filter plate (28); A multi-stage treatment mechanism (3), wherein the multi-stage treatment mechanism (3) is fixedly connected to the outside of the sedimentation tank assembly (1).

2. The multi-stage biological treatment device for rural sewage according to claim 1 is characterized in that: The sedimentation tank assembly (1) further comprises a base (13), a mounting platform (14), a water pump (15), a water inlet pipe (16) and a collection tank (17); the base (13) is fixedly connected to the bottom of the sedimentation tank; the mounting platform (14) is fixedly connected to the top of the base (13); the water pump (15) is fixedly connected to the top of the mounting platform (14); the water inlet pipe (16) is fixedly connected to the outside of the water pump (15); and the collection tank (17) is located above the base (13) and outside the sedimentation tank body (11).

3. The multi-stage biological treatment device for rural sewage according to claim 2 is characterized in that: The multi-stage treatment mechanism (3) comprises an anaerobic tank (31), a U-shaped pipe (32), an aeration tank (33), a fan (34), an air inlet pipe (35), a filter tank (36) and a water outlet pipe (37).

4. The multi-stage biological treatment device for rural sewage according to claim 3 is characterized by: The anaerobic tank (31) is fixedly connected to the top of the base (13); the U-shaped tube (32) is fixedly connected to the outside of the anaerobic tank (31); the aeration tank (33) is fixedly connected to the top of the base (13) and is fixedly connected to the U-shaped tube (32); the fan (34) is fixedly connected to the bottom of the aeration tank (33); the air inlet pipe (35) is fixedly connected to the outside of the fan (34) and extends into the aeration tank (33); the filter tank (36) is fixedly connected to the top of the base (13) and is located outside the aeration tank (33); and the water outlet pipe (37) is fixedly connected to the bottom of the filter tank (36).

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