Biochemical wastewater regulating reservoir with built-in filler

Abstract

The invention relates to the technical field of sewage treatment, in particular to a biochemical wastewater adjusting tank with built-in filler, which comprises a tank body, a filler frame, biological filler and a driving device.The filler frame comprises at least two support shafts vertically fixed at the bottom of the tank body and two flexible belts wound between the at least two support shafts and parallel to each other; the two flexible belts can synchronously move in the same direction between the at least two supporting shafts; a plurality of rope-shaped biological fillers are connected between the two flexible belts; the driving device is configured to be capable of driving the two flexible belts to synchronously move in the same direction. According to the invention, the contact area between the biological filler and wastewater in the tank body can be increased, the formation of a biological membrane on the biological filler is promoted, the phenomena of mutual winding, clustering and even breakage of the biological filler in the movement process in the tank body are avoided, and the service life of the biological filler is effectively prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a biochemical wastewater regulating pool with built-in fillers. Background Art

[0002] In the biochemical sewage treatment system, the regulating tank is mainly used to balance the flow rate and water quality fluctuations of the influent, ensuring the stable operation of the subsequent treatment units. In order to further reduce the load of the subsequent treatment units, some existing regulating tanks are equipped with rope-shaped biological fillers to promote the attachment of microorganisms and the formation of biofilms, thereby preliminarily degrading organic pollutants in the wastewater.

[0003] In existing regulating tanks, one end of the rope-like filler is usually fixed to a rope rack arranged at the top of the regulating tank, and the other end is free to swim in the water, allowing it to swing within a certain range with the fluctuation of the water flow. However, since the range of motion of the filler is limited by its own length, this limits the effective contact area between the filler and the wastewater, which is not conducive to the formation of biofilm, and further affects the biodegradation efficiency. In addition, the rope-like fillers arranged in this way are prone to entanglement and clumping, and may even break, resulting in the need for frequent maintenance and replacement. In view of the above problems, the present invention proposes an improved biochemical wastewater regulating tank with built-in filler. Summary of the invention

[0004] The object of the present invention is to provide a biochemical wastewater regulating tank with built-in filler to solve the problems raised in the above-mentioned background technology.

[0005] The present invention is achieved through the following technical solutions:

[0006] A biochemical wastewater regulating tank with built-in fillers comprises a tank body, a filler rack, biological fillers and a driving device, wherein the filler rack comprises at least two supporting shafts vertically fixed to the bottom of the tank body and two flexible belts wound between the at least two supporting shafts and parallel to each other, and the two flexible belts can move synchronously in the same direction between the at least two supporting shafts; a plurality of rope-shaped biological fillers are connected between the two flexible belts; and the driving device is configured to be able to drive the two flexible belts to move synchronously in the same direction.

[0007] Optionally, the driving device includes a power shaft disposed in the pool body and a driving motor driving the power shaft to rotate, and the two flexible belts are wound around the outside of the power shaft.

[0008] Optionally, a plurality of gear rods are fixedly provided on the outer wall of the power shaft, and the plurality of gear rods are arranged at intervals along the circumferential direction of the power shaft, and the gear rods push the biological filler to move when the support shaft rotates.

[0009] Optionally, two groups of gear rods are provided, and the two groups of gear rods are arranged at two ends of the power shaft, and the two groups of gear rods push the two ends of the biological filler to move synchronously when the support shaft rotates.

[0010] Optionally, the power shaft is a hollow structure with an opening at the bottom, and a delivery pipe fixed to the bottom of the pool body is inserted into the bottom of the power shaft, the delivery pipe is connected to a high-pressure water source, a drain port is provided on the side wall of the delivery pipe, and a plurality of nozzles are arranged along the circumference of the outer wall of the power shaft, and the plurality of nozzles are sequentially connected to the drain port when the power shaft rotates around the delivery pipe.

[0011] Optionally, the biological filler includes a center rope and a filler ring rotatable around the axis of the center rope, the gear rod pushes the center rope to move when the support shaft rotates, and the nozzle sprays water toward the filler ring when the gear rod pushes the center rope to move, and the water spraying direction of the nozzle deviates from the center of the filler ring.

[0012] Optionally, a sewage trough is provided at the bottom of the pool body, the delivery pipe is fixed in the sewage trough, and a sewage outlet connected to the sewage trough is provided on the pool body.

[0013] Optionally, a mounting platform fixed to the tank body is provided on the top of the sewage tank, the housing of the drive motor is fixed on the top of the mounting platform, and the output shaft of the drive motor extends to the bottom of the mounting platform and is fixedly connected to the power shaft.

[0014] Optionally, two baffles are fixedly arranged on the inner wall of the pool body between the mounting platform and the sewage tank, and the nozzle sprays water directly to the area between the two baffles when the nozzle is connected to the drain port.

[0015] Optionally, the support shaft comprises an axis body vertically fixed to the bottom of the pool body and two sliding wheels arranged at intervals along the axial direction of the axis body and rotatably connected to the axis body, and the wheel surface of the sliding wheel is concave to form a limiting groove.

[0016] Compared with the prior art, the present invention provides a biochemical wastewater regulating tank with built-in filler, which has the following beneficial effects:

[0017] 1. The present invention drives two flexible belts in the tank body to move in the same direction through a driving device, and the biological filler moves with the flexible belts, which can increase the contact area between the biological filler and the wastewater in the tank body, thereby facilitating the formation of a biofilm on the biological filler and improving the efficiency of biodegradation in the wastewater. At the same time, since the two ends of the biological filler are fixed by the two flexible belts, the biological filler will not be entangled, clumped or even broken during the movement in the tank body, which effectively prolongs the service life of the biological filler;

[0018] 2. The present invention provides two sets of toothed rods, which can simultaneously apply thrust to both ends of the biological filler, thereby ensuring the synchronization of the movement of the two flexible belts fixedly connected to the two ends of the biological filler. If the movement of the two flexible belts is not synchronized, the biological filler may be pulled and broken. The above-mentioned configuration can effectively reduce the possibility of the biological filler being pulled and broken.

[0019] 3. The present invention is provided with a delivery pipe, a drain port and a plurality of nozzles. When it is necessary to clean the biofilm on the biological filler, high-pressure water is sprayed to the biological filler through the nozzle, thereby washing off the biofilm attached to the biological filler, and achieving the purpose of cleaning the biological filler. In addition, since the nozzle connected to the delivery pipe is constantly switched, and only when the biological filler moves to the front of the nozzle, the nozzle will be connected to the delivery pipe and spray water to the biological filler, so that the purpose of saving water resources can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of a top view structure;

[0022] Figure 3 It is a schematic diagram of the structure of the filler frame, biological filler and driving device of the present invention;

[0023] Figure 4 A schematic diagram showing the connection structure between the filler frame and the driving device of the present invention;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0025] Figure 6 A schematic diagram showing the structure of the gear rod, nozzle and delivery pipe of the present invention;

[0026] Figure 7 A schematic diagram showing the structure of the baffle of the present invention;

[0027] Figure 8 It is a schematic diagram of the split structure of the power shaft and the delivery pipe of the present invention.

[0028] In the figure: 1. pool body; 2. flexible belt; 3. support shaft; 30. shaft body; 31. sliding wheel; 310. limiting groove; 4. baffle; 5. driving device; 50. driving motor; 51. power shaft; 52. transmission wheel; 520. groove; 53. gear rod; 6. conveying pipe; 60. drainage outlet; 61. water inlet pipe; 7. nozzle; 8. biological filler; 80. center rope; 81. filler ring; 82. attachment whiskers; 9. sewage tank; 10. sewage outlet; 11. filter net; 12. mounting table. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example: See Figures 1 to 8 According to an embodiment of the present invention, a biochemical wastewater regulating tank with built-in fillers is provided, comprising a tank body 1, a filler frame, a biological filler 8 and a driving device 5, wherein the filler frame comprises at least two support shafts 3 vertically fixed to the bottom of the tank body 1 and two flexible belts 2 wound between the at least two support shafts 3 and parallel to each other, the two flexible belts 2 can move synchronously in the same direction between the at least two support shafts 3; a plurality of rope-shaped biological fillers 8 are connected between the two flexible belts 2; the driving device 5 is configured to be able to drive the two flexible belts 2 to move synchronously in the same direction. Specifically in this example, the number of support shafts 3 is thirteen, and the thirteen support shafts 3 are divided into two rows along the width direction of the tank body 1, one row has six shafts and the other row has seven shafts, and the two flexible belts 2 are wound between the two rows of support shafts 3.

[0031] When the above scheme is implemented, the driving device 5 drives the two flexible belts 2 in the pool body 1 to move in the same direction, and the biological filler 8 moves with the flexible belts 2, which can increase the contact area between the biological filler 8 and the wastewater in the pool body 1, thereby facilitating the formation of a biofilm on the biological filler 8 and improving the efficiency of biodegradation in the wastewater. At the same time, since the two ends of the biological filler 8 are fixed by the two flexible belts 2, the biological filler 8 will not be entangled with each other, clumped or even broken during the movement in the pool body 1, thereby effectively extending the service life of the biological filler 8.

[0032] In this exemplary embodiment, the driving device 5 includes a power shaft 51 disposed in the pool body 1 and a driving motor 50 for driving the power shaft 51 to rotate, and two flexible belts 2 are wound around the outside of the power shaft 51. Specifically, the power shaft 51 and the flexible belt 2 can be driven by teeth or simple friction. When the driving motor 50 is started, the driving motor 50 drives the power shaft 51 to rotate, and the power shaft 51 can drive the two flexible belts 2 to move in the same direction. Of course, in order to limit the relative distance between the two flexible belts 2, so that the biological filler 8 connected between the two flexible belts 2 remains in a straightened state, in this example, a transmission wheel 52 is fixedly arranged at each end of the power shaft 51, and a groove 520 is arranged on the wheel surface of the transmission wheel 52. The two flexible belts 2 can be respectively embedded and restricted in the grooves 520 on the wheel surfaces of the two transmission wheels 52, so that the biological filler 8 connected between the two flexible belts 2 can remain in a straightened state, further reducing the occurrence of knotting and winding.

[0033] When the biological filler 8 becomes heavier due to the formation of biofilm, the power shaft 51 may not be able to drive the flexible belt 2 to move due to slippage, only relying on the friction between the power shaft 51 and the flexible belt 2. In order to ensure that the power shaft 51 can continuously and stably output power to the flexible belt 2, in this exemplary embodiment, a plurality of toothed rods 53 are fixedly provided on the outer wall of the power shaft 51. The plurality of toothed rods 53 are arranged at intervals along the circumferential direction of the power shaft 51. The toothed rods 53 push the biological filler 8 to move when the support shaft 3 rotates. When slippage occurs between the power shaft 51 and the flexible belt 2 due to the excessive weight of the biological filler 8, at this time, a part of the rotational driving force of the power shaft 51 acts on the flexible belt 2 through friction, and another part of the rotational driving force can directly act on the biological filler 8 through the toothed rods 53, thereby ensuring that the power shaft 51 can continuously and stably drive the flexible belt 2 to move.

[0034] In this exemplary embodiment, two groups of gear rods 53 are provided, and the two groups of gear rods 53 are arranged at both ends of the power shaft 51. The two groups of gear rods 53 push the two ends of the biological filler 8 to move synchronously when the support shaft 3 rotates. By providing two groups of gear rods 53, the two groups of gear rods 53 can simultaneously apply thrust to both ends of the biological filler 8, ensuring the synchronization of the movement of the two flexible belts 2 fixedly connected to the two ends of the biological filler 8, because if the movement of the two flexible belts 2 is not synchronized, the biological filler 8 may be pulled and broken, and the above-mentioned arrangement can effectively reduce the possibility of the biological filler 8 being pulled and broken.

[0035] In this exemplary embodiment, the power shaft 51 is a hollow structure with an opening at the bottom. The bottom of the power shaft 51 is plugged with a delivery pipe 6 fixed to the bottom of the pool body 1. The delivery pipe 6 is connected to a high-pressure water source. A drain port 60 is provided on the side wall of the delivery pipe 6. Specifically, a water inlet pipe 61 is also provided on the side wall of the bottom end of the delivery pipe 6. The water inlet pipe 61 can be connected to an external water source through a water pump. The outer wall of the power shaft 51 is arranged with a plurality of nozzles 7 along its circumference. The plurality of nozzles 7 are sequentially connected to the drain port 60 when the power shaft 51 rotates around the delivery pipe 6. After such arrangement, during the period of degrading organic matter in the wastewater, the driving shaft can drive the flexible belt 2 to move slowly and continuously in the tank body 1, thereby increasing the contact area between the biological filler 8 and the wastewater, making it easier to form a biofilm on the biological filler 8; and when it is necessary to clean the biofilm on the biological filler 8, the water in the tank body 1 can be drained or drained first, and then the driving shaft can be used to drive the flexible belt 2 to move, and the delivery pipe 6 is connected to the high-pressure water source. When the biological filler 8 moves to the front of one of the nozzles, the nozzle is also connected to the delivery pipe 6 through the drain port 60. At this time, the high-pressure water is sprayed to the biological filler 8 through the nozzle 7 connected to the delivery pipe 6, so as to wash off the biofilm attached to the biological filler 8, so as to achieve the purpose of cleaning the biological filler 8. In addition, since the nozzle connected to the delivery pipe 6 is constantly switched, and only when the biological filler 8 moves to the front of the nozzle, the nozzle will be connected to the delivery pipe 6 and spray water to the biological filler 8, so as to achieve the purpose of saving water resources.

[0036] In this exemplary embodiment, the biological filler 8 includes a central rope 80 and a filler ring 81 rotatably arranged on the central rope 80 around the axis of the central rope 80. Specifically, the filler ring 81 can be rotatably connected to the central rope 80 through a deep groove ball bearing. The filler ring 81 is evenly provided with attachment whiskers 82 made of polypropylene for microorganism attachment. The gear rod 53 pushes the central rope 80 to move when the support shaft 3 rotates. The nozzle 7 sprays water toward the filler ring 81 when the gear rod 53 pushes the central rope 80 to move, and the spraying direction of the nozzle 7 deviates from the center of the filler ring 81. After such arrangement, when the filler ring 81 is flushed with the nozzle 7, the filler ring 81 will rotate around the central rope 80 due to the impact of the water flow, so that the nozzle can perform all-round flushing on the filler ring 81, thereby improving the cleaning effect of the nozzle on the filler ring 81.

[0037] In this exemplary embodiment, a sewage tank 9 is provided at the bottom of the tank body 1, the delivery pipe 6 is fixed in the sewage tank 9, and a sewage outlet 10 connected to the sewage tank 9 is provided on the tank body 1. By providing the sewage tank 9, the biofilm flushed down by the nozzle can be collected and processed, and the collected sewage can be discharged and processed through the sewage outlet 10. In order to achieve solid-liquid separation when sewage is discharged, a filter screen 11 is provided at the sewage outlet 10, and the filter screen 11 can intercept most of the biofilm in the sewage in the sewage tank 9, and most of the liquid part will be discharged from the sewage outlet 10.

[0038] In this exemplary embodiment, a mounting platform 12 fixed to the tank body 1 is provided on the top of the sewage tank 9, the housing of the drive motor 50 is fixed on the top of the mounting platform 12, and the output shaft of the drive motor 50 extends to the bottom of the mounting platform 12 and is fixedly connected to the power shaft 51. In this way, the mounting platform 12 can not only serve as a platform for installing the drive motor 50, but also shield the top of the flushing area to prevent the biofilm from splashing outward from the top of the tank body 1.

[0039] In this exemplary embodiment, two baffles 4 are fixedly arranged on the inner wall of the tank body 1 between the mounting platform 12 and the sewage tank 9, and when the nozzle 7 is connected to the drain port 60, water is sprayed directly on the area between the two baffles 4. After such arrangement, the two baffles 4 can shield both sides of the flushing area to prevent the flushed biofilm from splashing around, so that the flushed biofilm can accurately fall into the sewage tank 9, which is convenient for centralized treatment of the biofilm.

[0040] In this exemplary embodiment, the support shaft 3 has an axis body 30 fixed vertically to the bottom of the pool body 1 and two sliding wheels 31 arranged axially at intervals along the axis body 30 and rotatably connected to the axis body 30 through deep groove ball bearings, and the wheel surface of the sliding wheel 31 is concave to form a limiting groove 310. After such arrangement, the two flexible belts 2 can be respectively embedded and limited in the limiting grooves 310 on the wheel surfaces of the two sliding wheels 31, so as to keep the biological filler 8 connected between the two flexible belts 2 in a straightened state and reduce the occurrence of knotting and entanglement. At the same time, since the sliding wheel 31 is rotatably connected to the axis body 30, the resistance of the flexible belt 2 when moving can be reduced, so that the flexible belt 2 can move more smoothly.

[0041] Working principle: After the sewage to be treated is injected into the tank body 1, the microorganisms in the sewage will adhere to the packing ring 81 of the biological filler 8 and gradually form a biofilm. At this time, the drive motor 50 is started, and the two flexible belts 2 in the tank body 1 are driven by the drive motor 50 to move in the same direction, so that the biological filler 8 moves with the flexible belts 2. This increases the contact area between the biological filler 8 and the wastewater, promotes the formation of the biofilm, and thus improves the biodegradation efficiency of organic matter in the wastewater. Since the two ends of the biological filler 8 are fixed by the two flexible belts 2, it is ensured that it will not be entangled, agglomerated or broken when moving in the tank body 1, thereby effectively extending the service life of the biological filler 8.

[0042] When it is necessary to clean the aged biofilm on the biological filler 8, the water in the tank body 1 is first drained or drained. Then the flexible belt 2 is driven to move by the driving shaft, and the delivery pipe 6 is connected to the high-pressure water source. As the driving shaft rotates and the flexible belt 2 moves, the high-pressure water is sprayed onto the biological filler 8 through the nozzle 7, effectively washing off the attached biofilm, and completing the cleaning process of the biological filler 8.

[0043] Although 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 defined by the appended claims and their equivalents.

Claims

1. A biochemical wastewater regulating tank with built-in filler, characterized in that: include: pool(1); A packing rack, comprising at least two supporting shafts (3) vertically fixed to the bottom of the tank body (1) and two flexible belts (2) wound between the at least two supporting shafts (3) and parallel to each other, wherein the two flexible belts (2) can move synchronously in the same direction between the at least two supporting shafts (3); A plurality of rope-shaped biological fillers (8) connected between the two flexible belts (2); A driving device (5) is configured to drive the two flexible belts (2) to move synchronously in the same direction.

2. The biochemical wastewater regulating tank with built-in filler according to claim 1 is characterized in that: The driving device (5) comprises a power shaft (51) arranged in the pool body (1) and a driving motor (50) for driving the power shaft (51) to rotate, and the two flexible belts (2) are wound around the outside of the power shaft (51).

3. The biochemical wastewater regulating tank with built-in filler according to claim 2 is characterized in that: A plurality of gear rods (53) are fixedly arranged on the outer wall of the power shaft (51), and the plurality of gear rods (53) are arranged at intervals along the circumferential direction of the power shaft (51). When the support shaft (3) rotates, the gear rods (53) push the biological filler (8) to move.

4. The biochemical wastewater regulating tank with built-in filler according to claim 3 is characterized in that: The gear rods (53) are provided in two groups, and the two groups of gear rods (53) are arranged at two ends of the power shaft (51). When the support shaft (3) rotates, the two groups of gear rods (53) push the two ends of the biological filler (8) to move synchronously.

5. The biochemical wastewater regulating tank with built-in filler according to claim 3 is characterized by: The power shaft (51) is a hollow structure with an opening at the bottom. A delivery pipe (6) fixed to the bottom of the pool body (1) is inserted into the bottom of the power shaft (51). The delivery pipe (6) is connected to a high-pressure water source. A drainage port (60) is provided on the side wall of the delivery pipe (6). A plurality of nozzles (7) are arranged along the circumference of the outer wall of the power shaft (51). When the power shaft (51) rotates around the delivery pipe (6), the plurality of nozzles (7) are connected to the drainage port (60) in sequence.

6. The biochemical wastewater regulating pond with built-in filler according to claim 5, characterized in that: The biological filler (8) includes a center rope (80) and a filler ring (81) rotatably arranged on the center rope (80) around the axis of the center rope (80); the gear rod (53) pushes the center rope (80) to move when the support shaft (3) rotates; the nozzle (7) sprays water toward the filler ring (81) when the gear rod (53) pushes the center rope (80) to move, and the water spraying direction of the nozzle (7) deviates from the center of the filler ring (81).

7. The biochemical wastewater regulating tank with built-in filler according to claim 5 or 6, characterized in that: A sewage trough (9) is provided at the bottom of the pool body (1), the delivery pipe (6) is fixed in the sewage trough (9), and a sewage outlet (10) connected to the sewage trough (9) is provided on the pool body (1).

8. The biochemical wastewater regulating pond with built-in filler according to claim 7, characterized in that: A mounting platform (12) fixed to the tank body (1) is provided on the top of the sewage tank (9); a housing of the drive motor (50) is fixed to the top of the mounting platform (12); an output shaft of the drive motor (50) extends to the bottom of the mounting platform (12) and is fixedly connected to the power shaft (51).

9. The biochemical wastewater regulating pond with built-in filler according to claim 8, characterized in that: Two baffles (4) are fixedly arranged on the inner wall of the pool body (1) between the mounting platform (12) and the sewage tank (9), and when the nozzle (7) is connected to the drain port (60), water is sprayed directly onto the area between the two baffles (4).

10. The biochemical wastewater regulating tank with built-in filler according to claim 1, characterized in that: The support shaft (3) comprises an axis body (30) vertically fixed to the bottom of the pool body (1), and two sliding wheels (31) arranged at intervals along the axial direction of the axis body (30) and rotatably connected to the axis body (30), and a limiting groove (310) is formed inwardly on the wheel surface of the sliding wheel (31).

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