Oxidation ditch for sewage treatment

Abstract

The utility model discloses an oxidation ditch for sewage treatment, which relates to the field of sewage treatment and comprises an oxidation pond, a water pumping pipe and a water inlet pipe are respectively arranged on two sides of one end of the oxidation pond, mounting sleeves are fixed on two sides of one end of the oxidation pond and in the middle of one side of the oxidation pond, and the water pumping pipe and the water inlet pipe are connected with the mounting sleeves; a filter part is arranged in one side of one end of the oxidation pond, and a biological treatment assembly is arranged at the other end of the oxidation pond and is used for treating sewage in the oxidation pond; a sludge pumping assembly is arranged on one side of the filtering part, is arranged on one side of the oxidation pond and is used for pumping and treating sludge settled in the oxidation pond. According to the sewage treatment device, the filtering piece is arranged in the oxidation pond, and the coarse filtering plate on the filtering piece plays a role in preliminarily filtering sewage, so that large foreign matters in the sewage can be filtered out, and workers can intensively fish out the large foreign matters conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to an oxidation ditch for sewage treatment. Background Art

[0002] Oxidation ditch: An oxidation ditch is an activated sludge treatment system whose aeration tank is a closed channel. Therefore, its hydraulic flow pattern differs from that of traditional activated sludge processes. It is a circulating aeration ditch connected end to end, also known as a circulating aeration tank. The earliest oxidation ditches were not constructed of reinforced concrete, but rather earthen ditches with slope protection. They were intermittently fed and aerated. In this sense, oxidation ditches were originally a sequencing batch wastewater treatment technology.

[0003] The utility model with publication number CN218642566U discloses a sewage treatment oxidation ditch, including a bracket, an annular oxidation ditch fixedly installed on the upper surface of the bracket, a frame fixedly installed on the side of the annular oxidation ditch away from the bracket, a sewage discharge mechanism is provided in the frame and the annular oxidation ditch, and a filter assembly is provided on one side of the bracket.

[0004] As shown in the above-mentioned utility model, the existing oxidation ditch generally drives the guide block to slide downward, and the guide block causes the connecting plate to drop, and the sewage pump, the first mud pumping pipe, the confluence pipe, the second mud pumping pipe and the mud discharge pipe drop synchronously, so that the lower end of the second mud pumping pipe contacts the sludge in the annular oxidation ditch, and the sewage pump is operated, and the sewage pump draws out the sludge on the upper surface of the inclined pad through the first mud pumping pipe, the confluence pipe and the second mud pumping pipe. This method can clean the sludge in the oxidation ditch, but this method does not have a sludge crushing mechanism at the pipe mouth of the mud pumping pipe, so that the sludge can easily block the pipe mouth of the mud pumping pipe, affecting the removal of the sludge, and this method does not have a mechanism to accelerate sewage treatment, which reduces the sewage treatment efficiency of the oxidation ditch. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] An oxidation ditch for sewage treatment, comprising

[0007] An oxidation tank, wherein a water extraction pipe and a water inlet pipe are respectively provided on both sides of one end of the oxidation tank, and mounting sleeves are fixed on both sides of one end of the oxidation tank and in the middle of one side thereof, and the water extraction pipe and the water inlet pipe are both connected to the mounting sleeves;

[0008] A filter is provided inside one end of the oxidation tank, and a biological treatment component is provided at the other end of the oxidation tank for treating the sewage in the oxidation tank;

[0009] One side of the filter is provided with a sludge pumping assembly, which is arranged on one side of the oxidation tank and used for pumping and treating the sludge deposited in the oxidation tank.

[0010] Preferably, two symmetrically distributed stop blocks are fixed on the inner wall of one side of one end of the oxidation tank, the stop blocks are arranged in an inclined structure, and two symmetrically distributed mounting holes are formed in the top of one side of one end of the oxidation tank.

[0011] Preferably, the filter comprises a coarse filter plate, the lower surface of the coarse filter plate is attached to the stop blocks on both sides, and the top of the coarse filter plate is fixed with a mounting plate, and the two ends of the mounting plate are connected with the mounting holes through bolts.

[0012] Preferably, the biological treatment assembly comprises a rack arranged on the outer side of the other end of the oxidation tank, two symmetrically distributed telescopic cylinders are fixed on the top of the rack, the output end of the telescopic cylinder is connected with a movable plate, the two ends of the movable plate are attached to the inner wall of the rack through the attachment plates, the lower surface of the movable plate is connected with a filter box through four connecting belts, and the inside of the filter box is provided with a biological filler box.

[0013] Preferably, the sludge pumping assembly comprises a sludge tank arranged on one side of the oxidation tank, a fine filter plate is clamped in the clamping groove formed on the sludge tank, a sludge pump is arranged on one side of the upper end of the sludge tank, the sludge pump is fixed on the oxidation tank, the output end of the sludge pump is connected with the sludge tank in communication through a sludge discharging pipe, and the input end of the sludge pump is attached to the inner bottom wall of the oxidation tank through a sludge pumping pipe.

[0014] Preferably, the sludge pumping assembly further comprises a motor fixed on the inner edge of one side of the oxidation tank, a transmission shaft is fixed on the output end of the motor, one end of the transmission shaft penetrates through the oxidation tank and is inserted into the inside of the oxidation tank, a plurality of stirring plates arranged in an annular array are fixed on the outer side of the middle portion of the transmission shaft, a screw blade is fixed on the outer side of one end of the transmission shaft, and the screw blade is inserted into the end cavity of the sludge pumping pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a filter is arranged in the oxidation tank, and the coarse filter plate on the filter plays the role of preliminary filtration to sewage, can filter out the large -sized foreign matter in the sewage, and the staff is convenient to the centralized fishing of large -sized foreign matter, and the biological treatment assembly is arranged on the other end of the oxidation tank, and the filter box on the biological treatment assembly and the biological filler box in it can add the oxygen -requiring bacteria in the oxidation tank, improve the sewage treatment effect of the oxidation tank, and the biological treatment assembly moves up and down through the telescopic cylinder and drives the movable plate, so that the biological filler box in the filter box is convenient to replace quickly, and the processing efficiency of the biological treatment device is improved.

[0017] The utility model is provided with a sludge box on one side of the oxidation tank. The sludge box pumps the sludge precipitated in the oxidation tank into the sludge box through a sludge pump and a sludge pumping pipe. The fine filter plate in the sludge box can separate the sludge and sewage. The sludge is processed by external extraction or extraction equipment, and the sewage is returned to the oxidation tank for processing. The stirring plate and the auger blades on the transmission shaft are driven by the motor to rotate. The stirring plate can break up the sludge at the mouth of the sludge pumping pipe, making it easier for the sludge pumping pipe to extract it. At the same time, the auger blades can transport the sludge into the sludge pumping pipe, thereby improving the sludge pumping efficiency of the sludge pumping pipe, thereby improving the sludge treatment efficiency of the device.

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached figure:

[0020] Fig. 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Fig. 2 This is a schematic diagram of the structure of the oxidation tank and filter element of the utility model;

[0022] Fig. 3 This is a schematic diagram of the structure of the biological treatment component of the utility model.

[0023] Fig. 4 This is a schematic diagram of the structure of the mud pumping component of the utility model.

[0024] In the figure: oxidation pond 1, water suction pipe 11, water inlet pipe 12, mounting sleeve 13, block 14, mounting hole 15, filter element 2, coarse filter plate 21, mounting plate 22, biological treatment component 3, frame 31, telescopic cylinder 32, movable plate 33, connecting belt 34, filter box 35, biological filler box 36, mud suction component 4, sludge box 41, fine filter plate 42, mud pump 43, mud suction pipe 44, motor 45, drive shaft 46, stirring plate 47, auger blade 48. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0026] like Figs. 1 to 4As shown, an oxidation ditch for sewage treatment, including oxidation tank 1, one end of the oxidation tank 1 is provided with water pump 11 and water inlet pipe 12 on both sides, respectively, the two sides of one end of the oxidation tank 1 and the middle of one side are fixed with mounting sleeve 13, the mounting sleeve 13 is composed of two half ring fixed sleeve cooperating with bolts, the water pump 11 and the water inlet pipe 12 are connected with the mounting sleeve 13, the inner wall of one end of the oxidation tank 1 is fixed with two symmetrically distributed stop blocks 14, the stop block 14 is provided as an inclined structure, two symmetrically distributed mounting holes 15 are provided on the top of one end of the oxidation tank 1.

[0027] Specifically, the inside of one end of the oxidation tank 1 is provided with a filter 2, the filter 2 includes a coarse filter plate 21, the lower surface of the coarse filter plate 21 is matched with the stop block 14 on both sides, the coarse filter plate 21 is provided as an inclined structure, the two sides and the bottom of the coarse filter plate 21 are matched with the inner wall of the oxidation tank 1, and the top of the coarse filter plate 21 is fixed with a mounting plate 22, both ends of the mounting plate 22 are connected with the mounting hole 15 through bolts, and the coarse filter plate 21 is limited and fixed.

[0028] Specifically, the other end of the oxidation tank 1 is provided with a biological treatment assembly 3 for treating sewage in the oxidation tank 1, the biological treatment assembly 3 includes a rack 31 arranged outside the other end of the oxidation tank 1, the rack 31 is provided as a "H" shaped structure, and the bottom of both ends of the rack 31 is provided with an extension plate, which is fixed to the ground through bolts, the top of the rack 31 is fixed with two symmetrically distributed telescopic cylinders 32, the two telescopic cylinders 32 are synchronous cylinders and are connected with the gas source outside, the output end of the telescopic cylinder 32 is connected with a movable plate 33, both ends of the movable plate 33 are matched with the inner wall of the rack 31 through the matching plate, the lower surface of the movable plate 33 is connected with a filter box 35 through four connecting belts 34, the inside of the filter box 35 is provided with a biological filler box 36, the telescopic cylinder 32 drives the filter box 35 to move up and down through the movable plate 33, so that the biological filler box 36 in the filter box 35 is convenient to replace, the biological filler box 36 can add aerobic bacteria into the oxidation tank 1, and the sewage treatment efficiency of the oxidation tank 1 is improved.

[0029] More specifically, one side of the filter 2 is provided with a mud pumping assembly 4, which is arranged on one side of the oxidation tank 1 and used for pumping and treating the sludge deposited in the oxidation tank 1. The mud pumping assembly 4 comprises a sludge tank 41 arranged on one side of the oxidation tank 1, a fine filter plate 42 clamped in a clamping groove formed on the sludge tank 41, the fine filter plate 42 being capable of separating sewage and sludge, the sludge being treated by external pumping or extraction equipment, and the sewage being returned to the oxidation tank 1 for treatment. The sludge tank 41 is provided with a mud pumping pump 43 on one side of the upper end, the mud pumping pump 43 being fixed on the oxidation tank 1, the output end of the mud pumping pump 43 being communicated with the sludge tank 41 through a sludge discharge pipe, and the input end of the mud pumping pump 43 being fitted with the inner bottom wall of the oxidation tank 1 through a mud pumping pipe 44. The mud pumping assembly 4 further comprises a motor 45 fixed on the inner side of one side of the oxidation tank 1, the output end of the motor 45 being fixed with a transmission shaft 46, one end of the transmission shaft 46 penetrating through the oxidation tank 1 and being inserted into the inside of the oxidation tank 1, a plurality of stirring plates 47 being annularly arranged on the outer side of the middle part of the transmission shaft 46, a screw blade 48 being fixed on the outer side of one end of the transmission shaft 46, the screw blade 48 being inserted into the inner cavity of one end of the mud pumping pipe 44, the motor 45 driving the transmission shaft 46 to rotate, the transmission shaft 46 driving the stirring plates 47 and the screw blade 48 to rotate, the stirring plates 47 being capable of breaking the sludge at the pipe opening of the mud pumping pipe 44, facilitating the pumping of the mud pumping pipe 44, and the screw blade 48 being capable of conveying the sludge into the mud pumping pipe 44, thereby improving the sludge pumping efficiency of the mud pumping pipe 44.

[0030] In work, the device first through water inlet pipe 12, the sewage of outside is injected into oxidation pond 1, then the biological filler is injected into biological filler box 36, again biological filler box 36 is placed into filter box 35, then start telescopic air cylinder 32, telescopic air cylinder 32 drives movable plate 33 to move downwards, movable plate 33 drives filter box 35 to immerse in the sewage in oxidation pond 1, and the aerobic bacteria in biological filler improves the treatment efficiency of oxidation pond 1 to sewage, and the sewage is circulated and flows in oxidation pond 1 by the drive mechanism of oxidation pond 1, and the coarse filter plate 21 in oxidation pond 1 concentrates the large foreign matters in sewage, so as to facilitate the staff to concentrate salvage, and the sludge in sewage deposits to the bottom of oxidation pond 1 after the sewage in oxidation pond 1 is at rest for a period of time, at this time, start mud pump 43 and motor 45, mud pump 43 is extracted into sludge tank 41 through mud pipe 44, motor 45 drives transmission shaft 46 to rotate, transmission shaft 46 drives stirring plate 47 and auger blade 48 to rotate, stirring plate 47 can break the sludge at the pipe opening of mud pipe 44, so as to facilitate the extraction of mud pipe 44, and at the same time, auger blade 48 can deliver the sludge into mud pipe 44, improve the sludge extraction efficiency of mud pipe 44, in the process of sludge extraction, the sewage is circulated by the drive mechanism in oxidation pond 1, and the sludge is flowed by the sewage, and the sludge at other places in oxidation pond 1 is flowed to mud pipe 44, in the process of sludge flow, part of the sludge is mixed into the sewage, so the sludge extraction process needs to be deposited for several times, the fine filter plate 42 in sludge tank 41 separates the sewage and sludge, and the sludge is treated by the extraction or extraction equipment outside, and the sewage is backflowed into oxidation pond 1 by the circulation mechanism outside to be treated, and after the sewage treatment is completed, the treated sewage is extracted through water suction pipe 11.

[0031] Finally, it should be noted that: the above only for preferred embodiments of the utility model have described, and do not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. An oxidation ditch for sewage treatment, characterized in that: include An oxidation tank, wherein a water extraction pipe and a water inlet pipe are respectively provided on both sides of one end of the oxidation tank, and mounting sleeves are fixed on both sides of one end of the oxidation tank and in the middle of one side thereof, and the water extraction pipe and the water inlet pipe are both connected to the mounting sleeves; A filter is provided inside one end of the oxidation tank, and a biological treatment component is provided at the other end of the oxidation tank for treating the sewage in the oxidation tank; A mud pumping assembly is provided on one side of the filter element. The mud pumping assembly is provided on one side of the oxidation pond and is used for extracting and processing the sludge deposited in the oxidation pond.

2. The oxidation ditch for sewage treatment according to claim 1, characterized in that: Two symmetrically distributed blocks are fixed on the inner wall of one side of one end of the oxidation tank, and the blocks are arranged in an inclined structure. Two symmetrically distributed mounting holes are provided on the top of one side of one end of the oxidation tank.

3. The oxidation ditch for sewage treatment according to claim 1, characterized in that: The filter element includes a coarse filter plate, both sides of the lower surface of the coarse filter plate are in contact with the stopper, and a mounting plate is fixed on the top of the coarse filter plate, and both ends of the mounting plate are connected to the mounting holes by bolts.

4. The oxidation ditch for sewage treatment according to claim 1, characterized in that: The biological treatment component includes a frame arranged on the outside of the other end of the oxidation tank, and two symmetrically distributed telescopic cylinders are fixed on the top of the frame. The output ends of the telescopic cylinders are connected to a movable plate, and both ends of the movable plate are fitted with the inner wall of the frame through a fitting plate. The lower surface of the movable plate is connected to a filter box through four connecting belts, and a biological filling box is provided inside the filter box.

5. The oxidation ditch for sewage treatment according to claim 1, characterized in that: The sludge pumping assembly includes a sludge box arranged on one side of the oxidation tank, a fine filter plate is clamped in a slot opened on the sludge box, a sludge pump is provided on one side of the upper end of the sludge box, the sludge pump is fixed on the oxidation tank, the output end of the sludge pump is connected to the sludge box through a sludge discharge pipe, and the input end of the sludge pump is in contact with the inner bottom wall of the oxidation tank through the sludge pumping pipe.

6. The oxidation ditch for sewage treatment according to claim 5, characterized in that: The mud pumping assembly also includes a motor fixed to the inner side of one side of the oxidation tank, a transmission shaft is fixed to the output end of the motor, one end of the transmission shaft passes through the oxidation tank and is inserted into the interior of the oxidation tank, a plurality of stirring plates distributed in a circular array are fixed to the outside of the middle part of the transmission shaft, an auger blade is fixed to the outside of one end of the transmission shaft, and the auger blade is inserted into the inner cavity of one end of the mud pumping pipe.

Images