Sewage treatment sedimentation tank

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment settling pond which comprises a settling pond body, the settling pond body is of a hollow structure with an opening in the top, a water inlet is formed in the left side of the settling pond body, and a plurality of flow dividing mechanisms used for prolonging the sewage flowing distance are arranged in the settling pond body. According to the device, by arranging a fixing block and a collecting frame, suspended solids can enter the collecting frame to be collected and integrated, and the inconvenience that accumulated suspended solids need to be subjected to secondary treatment through a manual mode in a traditional device is changed; according to the sewage treatment device, the mode that a traditional device needs to be driven by arranging a motor and the like is changed, energy consumption is reduced, the sedimentation tank main body is arranged, and multiple groups of flow dividing mechanisms are arranged in the inner cavity of the sedimentation tank main body, so that the sedimentation time of sewage is prolonged; the sedimentation efficiency of the sewage is improved; and the problems of wide occupied area and serious land waste of the traditional sedimentation tank are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment sedimentation tank. Background Art

[0002] Sewage treatment refers to the process of separating the pollutants contained in sewage by various methods or converting them into harmless substances to purify the sewage. It is a process to make the sewage meet the water quality requirements for discharging into a certain water body or being reused again and to purify it. Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and is also increasingly entering the daily life of ordinary people.

[0003] A sedimentation tank is a facility for sewage treatment, and its main purpose is to remove suspended solids and sediment in sewage through the action of gravity. It is an important part of the sewage treatment system and is usually located at the position of primary or preliminary treatment. After the sewage enters the sedimentation tank, due to the action of gravity, the suspended solid particles will gradually sink to the bottom of the tank to form sludge, while the clear water flows out from the upper part of the tank. In this process, larger particles will sink faster, while smaller particles will be suspended in the water. After an appropriate residence time, the sedimentation tank can effectively remove suspended solids, significantly reducing the turbidity and the content of solid suspended solids in the sewage.

[0004] For example, the Chinese patent with the publication number CN221332888U discloses a sewage treatment sedimentation tank, which includes a sedimentation tank body. A first connection block is fixedly connected to the top of the sedimentation tank body. A sliding rod is fixedly connected to the outside of the first connection block. A connecting frame is slidably connected to the outside of the sliding rod. A sewage discharge mechanism is arranged on the outside of the connecting frame, and a collection mechanism is arranged on the outside of the connecting frame. The sewage can be precipitated through the sedimentation tank body. Through the mutual cooperation of the first connection block and the sliding rod, the connecting frame can slide. Through the collection mechanism, the floating objects in the sedimentation tank body can be fished out. Without the need for personnel to turn the net bag twice, the floating objects can be fished out, which is convenient to use. Through the sewage discharge mechanism, the adsorbed and precipitated sludge in the sedimentation tank body can be discharged, thus facilitating the cleaning of the sedimentation tank body by personnel.

[0005] This patent has some disadvantages in use. For example, the device in this patent still needs to manually process the suspended solids collected by the collection box, and when adjusting the height and position of the collection box, it needs to be driven by electrical equipment such as motors, and the power consumption is relatively large during the whole process. In addition, in order to ensure the sedimentation efficiency, the existing sedimentation tanks often have problems such as large floor area and serious land waste. In view of this, we propose a sewage treatment sedimentation tank. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a sewage treatment sedimentation tank to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a sewage treatment sedimentation tank, comprising:

[0008] The sedimentation tank body is a top-open internal hollow structure, a water inlet is provided on the left side of the sedimentation tank body, a plurality of diversion mechanisms for extending the flow distance of sewage are arranged in the sedimentation tank body, the diversion mechanism is composed of two guide plates 1 and 2 arranged alternately, the sedimentation tank body is provided with a collecting mechanism for collecting suspended matter at the water inlet, the collecting mechanism protects a collecting component for collecting suspended matter and a driving component for driving the collecting component.

[0009] In the above technical solution, further, the two guide plates 1 and 2 in the same diversion mechanism are distributed in a herringbone shape, the guide plate 1 is fixed to the side wall of the sedimentation tank body, the side wall of the guide plate 2 is symmetrically fixed with a fixing rod, and the other end of the fixing rod is fixed to the inner wall of the sedimentation tank body.

[0010] In the above technical solution, further, the collection component includes:

[0011] A fixed block, wherein the shape of the fixed block is an inverted concave structure, and collection frames are symmetrically fixed on both sides of the fixed block, and an upper horizontal plate and a lower horizontal plate are sequentially arranged in the fixed block from top to bottom, and two groups of symmetrically arranged slag discharge components are arranged between the upper horizontal plate and the lower horizontal plate, and the slag discharge component comprises a pulley 1 and a pulley 2 arranged in parallel, and the pulley 1 and the pulley 2 are both rotatably installed between the interlayer formed by the upper horizontal plate and the lower horizontal plate, and a transmission belt is installed between the pulley 1 and the pulley 2, and the pulley 2 is transmitted and cooperated with the pulley 1 through the transmission belt, and a plurality of linearly equidistantly distributed toggle blocks are fixed to the outer wall of the transmission belt by bolts, and the toggle block has an L-shaped structure.

[0012] In the above technical solution, further, a connecting plate is symmetrically fixed between the upper horizontal plate and the lower horizontal plate and near the edge positions on both sides, a limiting block is fixed on the outer wall of the connecting plate, and a displacement groove that can accommodate the limiting block to slide up and down is opened on the inner wall of the fixed block, and the limiting block is slidably matched with the displacement groove.

[0013] In the above technical solution, further, the driving component includes:

[0014] A driving wheel, the driving wheel is rotatably installed at the center position of the lower surface of the lower cross plate, and a driven wheel 1 and a driven wheel 2 rotatably installed on the lower surface of the lower cross plate are respectively arranged on both sides of the driving wheel, the driving wheel is meshed with the driven wheel 1, and a reversing wheel rotatably installed on the lower surface of the lower cross plate is arranged between the driven wheel 2 and the driving wheel, the driving wheel is meshed with the reversing wheel, and the reversing wheel is meshed with the driven wheel 2, the top ends of the rotating shafts of the driven wheel 1 and the driven wheel 2 both penetrate the lower surface of the lower cross plate and extend upward to be coaxially connected to the rotating shaft end of the pulley 1 in the two groups of slag discharge assemblies, the bottom end of the rotating shaft of the driving wheel is coaxially connected with a rotating rod, and a plurality of blades equidistantly distributed around the circumference are fixed on the rotating rod.

[0015] In the above technical solution, further, two vertical sides of the fixed block are provided with feed ports connected to the collection frame on the corresponding side, and an inclined guide plate three is fixed between the upper horizontal plate and the lower horizontal plate and close to the feed port, and the inclined surface of the guide plate three faces the feed port.

[0016] In the above technical solution, further, a plurality of groups of evenly distributed card frames are symmetrically arranged on the lower surface of the lower cross plate, counterweight blocks are inserted and installed in the card frames, and foam plates are symmetrically fixed on the lower surface of the lower cross plate.

[0017] In the above technical solution, further, a filter screen is fixed between the upper horizontal plate and the lower horizontal plate and on the side close to the sedimentation tank body, and the side wall of the collection frame and the filter screen close to the sedimentation tank body are provided with multiple evenly distributed drainage holes.

[0018] In the above technical solution, further, a water outlet is provided on a side of the sedimentation tank body away from the water inlet, and a sewage outlet is provided at the bottom of the sedimentation tank body and close to the water outlet.

[0019] The beneficial effects of the utility model are:

[0020] 1. The sewage treatment sedimentation tank, the device is provided with a fixed block and a collection frame, and a collection mechanism for collecting suspended matter is provided in the fixed block. Through the action of multiple toggle blocks, the suspended matter can enter the collection frame to be collected and integrated, which changes the inconvenience of the traditional device that needs to perform secondary treatment of the accumulated suspended matter manually.

[0021] 2. The sewage treatment sedimentation tank, this device uses water flow to drive multiple blades to rotate, and uses the blades to drive the driving wheel and the collection component above to work. Through hydraulic braking, it changes the traditional device's need to be driven by setting up motors and other settings, saving energy consumption while reducing the overall budget expenditure of the equipment.

[0022] 3. The sewage treatment sedimentation tank, the device is provided with a sedimentation tank body, and a multi-group diversion mechanism is provided in the inner cavity of the sedimentation tank body, and the flow direction of the sewage is guided and reversed by using the guide plate 1 and the guide plate 2 which are staggered in the diversion mechanism, so that the sewage in the inner cavity of the sedimentation tank body can be displaced longer and farther in a limited space, thereby increasing the sedimentation time of the sewage, improving the sedimentation efficiency of the sewage, and changing the problem that the traditional sedimentation tank occupies a wide area and seriously wastes land. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the sedimentation tank body and multiple diversion components in the utility model;

[0025] Figure 3 It is a top view schematic diagram of the sedimentation tank body and multiple flow diversion components in the utility model;

[0026] Figure 4 This is one of the structural diagrams of the collection mechanism in the utility model;

[0027] Figure 5 This is the second structural diagram of the collection mechanism in the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of the driving component and the collecting component in the utility model;

[0029] Figure 7 It is a structural schematic diagram of the fixing block in the utility model;

[0030] Figure 8 It is a structural schematic diagram of the connecting plate and the limiting block in the utility model.

[0031] The symbols in the figure are:

[0032] 1. Sedimentation tank body; 2. Water inlet; 3. Guide plate 1; 4. Guide plate 2; 5. Fixed rod; 6. Fixed block; 7. Collecting frame; 8. Upper horizontal plate; 9. Lower horizontal plate; 10. Connecting plate; 11. Limit block; 12. Displacement groove; 13. Pulley 1; 14. Pulley 2; 15. Transmission belt; 16. Toggle block; 17. Driving wheel; 18. Driven wheel 1; 19. Driven wheel 2; 20. Reversing wheel; 21. Rotating rod; 22. Blade; 23. Feed inlet; 24. Guide plate 3; 25. Frame; 26. Counterweight; 27. Foam board; 28. Filter screen; 29. ​​Water outlet; 30. Sewage outlet. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object may be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0036] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0037] It should be noted that in this application, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0038] Embodiment 1:

[0039] Please refer to Figure 1 - Figure 8 As shown, this embodiment provides a sewage treatment sedimentation tank, including:

[0040] A sedimentation tank main body 1, the sedimentation tank main body 1 has an open top and a hollow interior structure. An inlet 2 is provided on the left side of the sedimentation tank main body 1. A plurality of flow splitting mechanisms for extending the flow distance of sewage are arranged in the sedimentation tank main body 1. The flow splitting mechanism is composed of two guide plates one 3 and a guide plate two 4 arranged alternately. A collection mechanism for collecting suspended matter is provided at the position of the inlet 2 in the sedimentation tank main body 1. The collection mechanism includes a collection component for collecting suspended matter and a drive component for driving the collection component;

[0041] In this embodiment, the collection component includes:

[0042] A fixed block 6, the shape of the fixed block 6 is an inverted concave-shaped structure. Collection frames 7 are symmetrically fixed on both sides of the fixed block 6. An upper cross plate 8 and a lower cross plate 9 are sequentially arranged in the fixed block 6 from top to bottom. Two sets of symmetrically arranged slag discharging components are arranged between the upper cross plate 8 and the lower cross plate 9. The slag discharging component includes a pulley one 13 and a pulley two 14 arranged in parallel. Both the pulley one 13 and the pulley two 14 are rotatably installed between the interlayers formed by the upper cross plate 8 and the lower cross plate 9. A transmission belt 15 is installed between the pulley one 13 and the pulley two 14. The pulley two 14 is in transmission cooperation with the pulley one 13 through the transmission belt 15. A plurality of linearly equally spaced toggle blocks 16 are fixed on the outer wall of the transmission belt 15 by bolts. The toggle block 16 is in an L-shaped structure;

[0043] In this embodiment, a connecting plate 10 is symmetrically fixed between the upper horizontal plate 8 and the lower horizontal plate 9 and near the edges on both sides. A limiting block 11 is fixed to the outer wall of the connecting plate 10. A displacement groove 12 that can accommodate the limiting block 11 to slide up and down is opened on the inner wall of the fixed block 6. The limiting block 11 is slidably matched with the displacement groove 12.

[0044] In this embodiment, the driving component includes:

[0045] A driving wheel 17 is rotatably mounted at the center of the lower surface of the lower transverse plate 9. A driven wheel 18 and a driven wheel 2 19 rotatably mounted on the lower surface of the lower transverse plate 9 are respectively arranged on both sides of the driving wheel 17. The driving wheel 17 and the driven wheel 1 18 are meshed with each other. A reversing wheel 20 rotatably mounted on the lower surface of the lower transverse plate 9 is arranged between the driven wheel 2 19 and the driving wheel 17. The driving wheel 17 is meshed with the reversing wheel 20, and the reversing wheel 20 is meshed with the driven wheel 2 19. The top ends of the rotating shafts of the driven wheels 1 18 and 19 both penetrate the lower surface of the lower transverse plate 9 and extend upward to be coaxially connected to the rotating shaft ends of the pulleys 13 in the two groups of slag discharge assemblies. The bottom end of the rotating shaft of the driving wheel 17 is coaxially connected with a rotating rod 21, and a plurality of blades 22 equidistantly distributed around the circumference are fixed on the rotating rod 21.

[0046] Among them, the working principle of this device is as follows:

[0047] When sewage enters the sedimentation tank body 1 through the fixed block 6, in this process, the multiple blades 22 rotate under the action of the sewage flow, and drive the rotating rod 21 and the driving wheel 17 to rotate, the driving wheel 17 drives the driven wheel 18 and the reversing wheel 20 to rotate, and the driven wheel 18 drives the driven wheel 2 19 to rotate. Under the action of the reversing wheel 20, the driven wheel 18 and the driven wheel 2 19 rotate in opposite directions, and the driven wheel 18 and the driven wheel 2 19 respectively drive the pulley 1 13 in the two slag discharge components to rotate. Rotate, the pulley 13 drives the corresponding pulley 2 14 to rotate through the transmission belt 15. During the rotation of the transmission belt 15, a plurality of toggling blocks 16 located outside the transmission belt 15 work simultaneously, and the toggling blocks 16 are L-shaped, so that the toggling blocks 16 can form a pickpocket-like structure during the displacement process, so that the suspended matter can be toggled to both sides of the fixed block 6, and enter the collection frame 7 through the corresponding feed port 23 to be collected, and the excess water flows into the inner cavity of the sedimentation tank body 1 through the drainage hole inside the collection frame 7;

[0048] The sedimentation and flow process of sewage in the inner cavity of the sedimentation tank body 1 is as follows: the sewage flowing out through the water inlet 2 and the collecting frame 7 is guided toward the center by the two guide plates 1 3, and then moves toward the two sides of the sedimentation tank body 1 under the guidance of the guide plate 2 4. Through the action of the multi-group diversion mechanism, the travel route of the sewage is extended, the sedimentation time of the sewage is increased, the sedimentation efficiency of the sewage is improved, and the problem of the traditional sedimentation tank occupying a wide area and serious land waste is changed. Finally, the precipitated sewage is discharged to the next treatment process through the outlet 29.

[0049] Embodiment 2:

[0050] The present embodiment provides a sewage treatment sedimentation tank, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the two guide plates 1 3 and the guide plate 2 4 in the same diversion mechanism are distributed in a herringbone shape, the guide plate 1 3 is fixed to the side wall of the sedimentation tank body 1, the side wall of the guide plate 2 4 is symmetrically fixed with a fixing rod 5, and the other end of the fixing rod 5 is fixed to the inner wall of the sedimentation tank body 1.

[0051] Among them, the sewage flowing out through the water inlet 2 and the collecting frame 7 is guided toward the center by the two guide plates 1 3, and then moves toward the two sides of the sedimentation tank body 1 under the guidance of the guide plate 2 4. By setting up multiple diversion mechanisms, the sewage in the inner cavity of the sedimentation tank body 1 can be displaced longer and farther in a limited space, which increases the sedimentation time of the sewage, improves the sedimentation efficiency of the sewage, and changes the problem of traditional sedimentation tanks occupying a wide area and serious land waste.

[0052] Embodiment 3:

[0053] The present embodiment provides a sewage treatment sedimentation tank, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: two vertical sides of the fixed block 6 are provided with feed ports 23 connected to the corresponding collecting frame 7; an inclined guide plate three 24 is fixed between the upper horizontal plate 8 and the lower horizontal plate 9 and near the feed port 23, and the inclined surface of the guide plate three 24 faces the feed port 23.

[0054] Among them, by setting the guide plate three 24, the suspended matter is guided, so that the suspended matter can pass through the feed port 23 and enter the collection frame 7 more quickly under the action of the multiple toggle blocks 16 and the guide plate three 24.

[0055] Embodiment 4:

[0056] The present embodiment provides a sewage treatment sedimentation tank, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a plurality of groups of evenly distributed card frames 25 are symmetrically arranged on the lower surface of the lower cross plate 9, and a counterweight block 26 is inserted and installed in the card frame 25; a foam plate 27 is symmetrically fixed to the lower surface of the lower cross plate 9.

[0057] Among them, the foam plate 27 increases the buoyancy of the entire collecting mechanism, so that the collecting mechanism can float on the water surface and rise and fall synchronously with the water surface. By adding or reducing the counterweight block 26, the collecting mechanism can flexibly adjust the working height of the upper horizontal plate 8 and the lower horizontal plate 9 and multiple toggle blocks 16 according to the on-site water level and the weight of the equipment, thereby improving the applicability of the device.

[0058] Embodiment 5:

[0059] The present embodiment provides a sewage treatment sedimentation tank, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a filter screen 28 is fixed between the upper horizontal plate 8 and the lower horizontal plate 9 and on the side close to the sedimentation tank body 1, and a plurality of evenly distributed drainage holes are provided on the side wall of the collecting frame 7 and the filter screen 28 close to the sedimentation tank body 1.

[0060] Among them, by setting the filter screen plate 28, the missed floating objects can be further intercepted, and the intercepted floating objects are transported to the position of the feed port 23 through a plurality of toggle blocks 16 and enter the collection frame 7.

[0061] Embodiment 6:

[0062] The present embodiment provides a sewage treatment sedimentation tank, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a water outlet 29 is provided on the side of the sedimentation tank body 1 away from the water inlet 2, and a sewage outlet 30 is provided at the bottom of the sedimentation tank body 1 and close to the water outlet 29.

[0063] Among them, the precipitated sewage is discharged from the outlet 29 to the next process, and the sludge and other impurities precipitated at the bottom of the inner cavity of the sedimentation tank body 1 are discharged through the sewage outlet 30. It is worth noting that a sewage pipe and a control valve are installed at the sewage outlet 30. This is the prior art, which is not shown in the drawings of the present application specification. When discharging the sludge, it is only necessary to open the control valve to extract the sludge from the sewage outlet 30. Those skilled in the art should be familiar with this and this application will not elaborate on it.

[0064] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A sewage treatment sedimentation tank, characterized in that, include: A sedimentation tank body (1) is a top-opening internal hollow structure. A water inlet (2) is provided on the left side of the sedimentation tank body (1). A plurality of diversion mechanisms for extending the flow distance of sewage are arranged in the sedimentation tank body (1). The diversion mechanisms are composed of two guide plates (3) and two guide plates (4) arranged alternately. A collection mechanism for collecting suspended matter is arranged in the sedimentation tank body (1) at the water inlet (2). The collection mechanism protects a collection component for collecting suspended matter and a drive component for driving the collection component.

2. A sewage treatment sedimentation tank according to claim 1, characterized in that The two guide plates 1 (3) and 2 (4) in the same diversion mechanism are arranged in a herringbone shape, the guide plate 1 (3) is fixed to the side wall of the sedimentation tank body (1), the side wall of the guide plate 2 (4) is symmetrically fixed with a fixing rod (5), and the other end of the fixing rod (5) is fixed to the inner wall of the sedimentation tank body (1).

3. A sewage treatment sedimentation tank according to claim 1, characterized in that, The collection component comprises: A fixed block (6) is shaped like an inverted concave structure, and a collecting frame (7) is symmetrically fixed on both sides of the fixed block (6). An upper horizontal plate (8) and a lower horizontal plate (9) are sequentially arranged in the fixed block (6) from top to bottom. Two groups of symmetrically arranged slag discharge components are arranged between the upper horizontal plate (8) and the lower horizontal plate (9), and the slag discharge components include a pulley 1 (13) and a pulley 2 (14) arranged in parallel. The pulley 1 (13) and the pulley 2 (14) are both rotatably installed between the interlayer formed by the upper horizontal plate (8) and the lower horizontal plate (9). A transmission belt (15) is installed between the pulley 1 (13) and the pulley 2 (14), and the pulley 2 (14) is driven and matched with the pulley 1 (13) through the transmission belt (15). The outer wall of the transmission belt (15) is fixed with a plurality of linearly equidistantly distributed toggle blocks (16) by bolts, and the toggle blocks (16) are L-shaped structures.

4. A sewage treatment sedimentation tank according to claim 3, characterized in that, A connecting plate (10) is symmetrically fixed between the upper horizontal plate (8) and the lower horizontal plate (9) and near the edges on both sides; a limit block (11) is fixed on the outer wall of the connecting plate (10); a displacement groove (12) capable of accommodating the limit block (11) to slide up and down is formed on the inner wall of the fixed block (6); the limit block (11) and the displacement groove (12) are slidably matched.

5. A sewage treatment sedimentation tank according to claim 4, characterized in that, The drive assembly comprises: The driving wheel (17) is rotatably installed at the center position of the lower surface of the lower cross plate (9). On both sides of the driving wheel (17), a first driven wheel (18) and a second driven wheel (19) which are rotatably installed on the lower surface of the lower cross plate (9) are respectively arranged. The driving wheel (17) is meshed with the first driven wheel (18). A reversing wheel (20) which is rotatably installed on the lower surface of the lower cross plate (9) is arranged between the second driven wheel (19) and the driving wheel (17). The driving wheel (17) is meshed with the reversing wheel (20). The reversing wheel (20) is meshed with the second driven wheel (19). The top ends of the rotating shafts of the first driven wheel (18) and the second driven wheel (19) both penetrate through the lower surface of the lower cross plate (9) and extend upward to be coaxially connected with the rotating shaft ends of the first belt wheels (13) in the two slag discharging assemblies. The bottom end of the rotating shaft of the driving wheel (17) is coaxially connected with a rotating rod (21). A plurality of blades (22) which are distributed at equal intervals in a circumferential manner are fixed on the rotating rod (21).

6. The sewage treatment sedimentation tank according to claim 5, characterized in that, Feeding ports (23) which are communicated with the corresponding side collecting frames (7) are formed in two vertical sides of the fixing block (6). A third guiding plate (24) which is obliquely arranged is fixed between the upper cross plate (8) and the lower cross plate (9) and close to the feeding ports (23), and the inclined surface of the third guiding plate (24) faces the feeding ports (23).

7. A sewage treatment sedimentation tank according to claim 6, characterized in that, A plurality of groups of uniformly distributed clamping frames (25) are symmetrically arranged on the lower surface of the lower cross plate (9). A counterweight block (26) is inserted and installed in the clamping frame (25). Foam plates (27) are symmetrically fixed on the lower surface of the lower cross plate (9).

8. A sewage treatment sedimentation tank according to claim 7, characterized in that, A filter screen plate (28) is fixed between the upper cross plate (8) and the lower cross plate (9) and close to one side of the sedimentation tank main body (1). A plurality of uniformly distributed drain holes are formed in the side walls of the collecting frame (7) and the filter screen plate (28) close to one side of the sedimentation tank main body (1).

9. A sewage treatment sedimentation tank according to claim 1, characterized in that, A water outlet (29) is formed in one side of the sedimentation tank main body (1) far away from the water inlet (2). A sewage outlet (30) is formed in the bottom of the sedimentation tank main body (1) and close to one side of the water outlet (29).

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