CN209778591U - A sewage treatment device for pigs - Google Patents

Abstract

The utility model discloses a sewage treatment device for raising pigs, which comprises an anaerobic pool, an anoxic pool, an aerobic pool and a sedimentation pool which are sequentially connected according to the sewage flow direction. The beneficial effect of the utility model: by setting the connecting shaft, the liquid outlet hole, the first rotary joint and the conduit, when the sewage enters the sedimentation tank of the device, the flocculant can pass through the conduit, the first rotary The inside of the joint and the connecting shaft finally enters the sewage in the mixing chamber from the liquid outlet hole, and then people turn on the motor, the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the V-belt, and the driven wheel drives the suction pipe and the connecting shaft Rotating, the connecting shaft drives the blades to stir, so that the flocculant is fully mixed with the solid particles in the sewage, so that the large particles can settle to the bottom of the mixing chamber or the sludge pool, so that the device can fully remove the sludge in the sewage.

Description

A sewage treatment device for pigs

technical field

The utility model relates to a pig raising sewage treatment device, which belongs to the technical field of sewage treatment.

Background technique

In recent years, my country's large-scale and intensive livestock and poultry breeding industry has developed vigorously. The modern closed-scale large-scale breeding technology has promoted the development of my country's urban livestock and poultry breeding industry to high-quality and efficient development, and the ensuing discharge of livestock and poultry breeding wastewater has also shown The trend of increasing year by year has caused serious environmental pollution such as soil, water and air to the region. Due to my country's preference for pork, the number and scale of pig farms are relatively large, and the wastewater discharge from pig farms accounts for the largest share of wastewater discharge from livestock and poultry farms. more than half of the total.

A kind of sewage treatment device has been clearly proposed in the pig farm sewage treatment device with publication number CN204625435U, but when the current pig farm sewage treatment device settles the sludge, the sedimentation tank cannot fully remove the sludge in the sewage.

Utility model content

The purpose of the utility model is to provide a pig raising sewage treatment device capable of effectively removing sludge in order to solve the above problems.

The utility model achieves the above object through the following technical scheme, a pig raising sewage treatment device, including an anaerobic pool, anoxic pool, aerobic pool and sedimentation pool connected sequentially according to the sewage flow direction, the outlet of the aerobic pool is connected with the The water inlet of the anoxic tank is connected through the return pipe, the sedimentation tank is connected with the water inlet of the anoxic tank through the first mud return pipe, and the sedimentation tank is connected with the anaerobic tank water inlet through the second mud return pipe. There are several baffles in the vertical direction of water flow in the pool to divide the anaerobic pool into several relatively independent chambers, and each chamber is provided with a baffle parallel to the baffle, and the bottom of the baffle does not contact the anaerobic chamber. At the bottom of the pool, the sedimentation tank is provided with a stirring chamber, the bottom surface of the stirring chamber is conical, the underside of the stirring chamber is connected with a mud pool, and the bottom surface of the mud pool is provided with a partition, so A placement chamber is formed by a partition in the sedimentation tank, a connecting shaft is provided in the stirring chamber, and the connecting shaft is hollow, and a number of liquid outlets are arranged vertically and communicated with the interior on the side wall of the connecting shaft. , the upper end of the connecting shaft is connected with a conduit through the first rotary joint, and the conduit is connected with a flocculant drop box, and a plurality of obliquely arranged paddles are distributed in an annular array on the outside of the connecting shaft, and the paddles are connected to the bottom surface of the stirring chamber contact with the side wall, the lower end of the connecting shaft is connected with a suction pipe, the side wall of the suction pipe is provided with a suction port, the lower end of the suction pipe penetrates through the partition and is connected with a second rotary joint, the second The rotary joint is in communication with the second mud return pipe, a motor is provided in the placement cavity, a driving wheel is set on the output end of the motor, and a driven wheel is set on one end of the suction pipe located in the placement cavity , the driving wheel and the driven wheel are connected by a V-belt.

As a further configuration of the present invention, a top cover is provided on the top surface of the stirring chamber, and a through hole is opened in the top cover, and the first rotary joint is provided in the through hole.

As a further configuration of the present invention, the blade is provided with a plurality of through grooves for water flow, and the plurality of through grooves are arranged in an array on the blade surface of the blade.

As a further configuration of the present invention, the paddles are provided with a plurality of flow guide blocks, and the plurality of flow guide blocks and the plurality of through grooves are alternately arranged.

As a further configuration of the present invention, the guide block is in the shape of a triangular prism.

As a further configuration of the present invention, a scraper is connected to one side of the mud suction port, and the scraper is in contact with the side wall of the mud pool and the top surface of the partition.

As a further configuration of the present invention, the included angle between the paddle and the vertical surface is 15 degrees to 45 degrees.

As a further configuration of the present utility model, the lower part of the baffle is bent toward the water flow direction.

As a further configuration of the present utility model, an oil seal located in the partition is sleeved on the suction pipe.

As a further configuration of the present utility model, a power pump is provided on the second mud return pipe.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model arranges the connecting shaft, the liquid outlet hole, the first rotary joint and the conduit so that when the sewage enters the sedimentation tank of the device, the flocculant can pass through the conduit, the first rotary joint and the connecting shaft sequentially from the flocculant delivery box. Inside, it finally enters the sewage in the mixing chamber from the outlet hole, and then people turn on the motor, the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the V-belt, the driven wheel drives the suction pipe and the connecting shaft to rotate, and the connecting shaft Drive the blades to stir, so that the flocculant and the solid particles in the sewage are fully mixed, so that large particles can settle to the bottom of the mixing chamber or the mud pool, which improves the mixing effect of the solid particles in the sewage and the flocculant, so that the device can Fully remove the sludge in the sewage.

Description of drawings

Fig. 1 is the structural representation of a kind of pig raising sewage treatment device of the present utility model;

Fig. 2 is the structural representation of the settling tank in a kind of pig raising sewage treatment device of the utility model;

Fig. 3 is a perspective view of a connecting shaft and blades in a pig raising sewage treatment device of the present invention.

Reference signs: 1, anaerobic tank; 2, anoxic tank; 3, aerobic tank; 4, sedimentation tank; 5, return pipe; 6, through groove; 7, baffle; 8, baffle; 1st return mud pipe; 10. Second return mud pipe; 11. Stirring chamber; 12. Top cover; 13. Mud pool; 14. Motor; 15. Driving wheel; 16. Driven wheel; 17. V-belt; 18 , second rotary joint; 19, deflector block; 20, power pump; 21, clapboard; 22, suction pipe; 23, suction port; 24, scraper; 25, connecting shaft; 26, first rotary joint ; 27, conduit; 28, liquid outlet; 29, paddle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 3, a pig raising sewage treatment device, including anaerobic pond 1, anoxic pond 2, aerobic pond 3 and sedimentation pond 4 connected sequentially according to the sewage flow direction, and the outlet of aerobic pond 3 The water inlet of the anoxic tank 2 is connected through the return pipe 5, the sedimentation tank 4 is connected with the water inlet of the anoxic tank 2 through the first mud return pipe 9, and the sedimentation tank 4 is connected with the anaerobic tank 1 water inlet through the second mud return pipe 10 The anaerobic tank 1 is provided with a number of baffles 7 in the vertical direction of water flow to divide the anaerobic tank 1 into several relatively independent chambers, each chamber is provided with a baffle 8 parallel to the baffle 7, and the baffles The bottom of 8 does not touch the bottom of anaerobic tank 1, and the lower part of baffle plate 8 bends toward the direction of water flow. There is a stirring chamber 11 in the sedimentation tank 4. The bottom surface of the stirring chamber 11 is conical. The mud tank 13 and the bottom surface of the mud pool 13 are provided with a dividing plate 21, the sedimentation tank 4 forms a placement chamber by the dividing plate 21, the stirring chamber 11 is provided with a connecting shaft 25, the connecting shaft 25 is a hollow structure, and the side of the connecting shaft 25 The wall is provided with several liquid outlet holes 28 arranged vertically and connected to the inside. The upper end of the connecting shaft 25 communicates with a conduit 27 through the first rotary joint 26. The conduit 27 is connected with a flocculant drop box. The outer ring array of the connecting shaft 25 is distributed with A number of inclined paddles 29, and the paddles 29 are in contact with the bottom surface and side walls of the mixing chamber 11, the angle between the paddles 29 and the vertical surface is 15 degrees to 45 degrees, and the lower end of the connecting shaft 25 is connected with a suction pipe 22. The side wall of the suction pipe 22 is provided with a suction port 23. The lower end of the suction pipe 22 runs through the partition 21 and communicates with the second rotary joint 18. The second rotary joint 18 is connected to the second mud return pipe 10. The first The rotary joint 26 and the second rotary joint 18 are all the same as the rotary joint in a sewage sedimentation tank with the publication number CN208465263U, so no further description is given. The second mud return pipe 10 is provided with a power pump 20, and a motor is provided in the placement chamber. 14, the output end of the motor 14 is provided with a driving wheel 15, and the end of the suction pipe 22 located in the cavity is provided with a driven wheel 16, and the driving wheel 15 and the driven wheel 16 are connected by a V-belt 17.

After the sewage enters the anaerobic tank 1, the microorganisms in the anaerobic tank 1 fully hydrolyze the macromolecular organic matter into small molecular organic matter, and the organic nitrogen is converted into ammonia nitrogen. 1. The treated sewage flows to the anoxic tank 2. Using small molecular organic matter as the carbon source, the nitrate nitrogen and nitrite nitrogen in the reflux mixture obtained from the subsequent aerobic reaction are reduced to nitrogen by denitrifying bacteria, and the waste water is removed from the sewage It is discharged in the liquid phase to achieve the purpose of denitrification. The sewage treated by the anaerobic tank 1 flows to the aerobic tank 3, and the ammonia nitrogen is converted into nitrite nitrogen and nitrate nitrogen by nitrifying bacteria under aerobic conditions, and at the same time Most of the organic pollutants are degraded into carbon dioxide and water by aerobic microorganisms. After releasing phosphorus, the phosphorus-accumulating bacteria absorb phosphorus and store it in the form of polyphosphate. Part of the sewage treated in the aerobic pool 3 is returned to the anoxic pool 2, and part of it is Flow to the sedimentation tank 4, the sewage treated by the aerobic tank 3 flows to the sedimentation tank 4 for solid-liquid separation, the supernatant is discharged to the receiving water body, and part of the settled sludge is returned to the anaerobic tank 1 and the anoxic tank 2 , excess sludge discharge sludge treatment system, the baffle plate 8 divides the independent chamber into a downflow chamber and an upflow chamber according to the water flow direction, and the upflow chamber is wider than the downflow chamber, which facilitates the accumulation of sludge and forms granular sludge , and the baffle plate 8 bends to the direction of water flow, which is convenient for the muddy water to be sufficient, and does not need to install a mixing and stirring device, which reduces energy consumption. The flocculant feeding box passes through the conduit 27, the first rotary joint 26 and the inside of the connecting shaft 25 in turn, and finally enters the sewage in the mixing chamber 11 from the outlet hole 28, and then people turn on the motor 14, and the motor 14 drives the driving wheel 15 to rotate , the driving wheel 15 drives the driven wheel 16 to rotate through the V-belt 17, the driven wheel 16 drives the suction pipe 22 and the connecting shaft 25 to rotate, and the connecting shaft 25 drives the paddle 29 to stir, so that the flocculant and the solid particles in the sewage are fully mixed and Due to its own gravity, the precipitation phenomenon falls into the bottom surface of the mixing chamber 11 and the mud pool 13, and people turn on the power pump 20, and the mud suction port 23 extracts the sludge in the mud pool 13 during the rotation process to leave, and at the same time, the paddle 29 During the rotation process, due to the inclined setting of the paddle 29, the paddle 29 can scrape off the sediment attached to the bottom surface and side wall of the stirring chamber 11 and have a certain centripetal thrust on it, so that the sediment can fall into the mud pool 13, so that the device can fully remove the sludge and particle impurities in the sewage.

The top surface of the stirring chamber 11 is provided with a top cover 12, and the top cover 12 is provided with a through hole, and the first rotary joint 26 is arranged in the through hole.

By setting the top cover 12, the sedimentation tank 4 can avoid external impurities from entering the stirring chamber 11 during the process of removing sludge and fixed particles in the sewage, and by setting the first rotary joint 26 in the through hole of the top cover 12 , can play a better supporting effect on the first rotary joint 26, so that the connecting shaft 25 has better stability during the rotation process.

The blade 29 is provided with a plurality of through grooves 6 for water flow, and the plurality of through grooves 6 are distributed in an array on the blade surface of the blade 29 .

By setting several through grooves 6, the paddle 29 can keep the water body flowing when stirring the sewage and the flocculant, so that the mixing effect of the sewage and the flocculant is better.

The paddle 29 is provided with a plurality of guide blocks 19, which are in the shape of a triangular prism, and the plurality of guide blocks 19 and the plurality of through grooves 6 are alternately arranged.

Through the guide block 19, the paddle 29 can rotate more smoothly when following the connecting shaft 25 to rotate and stir, so as to avoid excessive resistance during the stirring process.

One side of the mud suction port 23 is connected with a scraper 24 , and the scraper 24 is in contact with the side wall of the mud pool 13 and the top surface of the partition 21 .

By setting the scraper 24, when the suction pipe 22 is rotating, the scraper 24 can be driven to scrape the sedimentation sludge on the side wall of the mud pool 13 and the top surface of the partition plate 21, so that the sludge and sediment can be completely discharged from the suction port. 23 were drawn.

The suction pipe 22 is sleeved with an oil seal located in the partition 21 .

By setting the oil seal, the mud suction pipe 22 can keep relatively smooth rotation, and also can prevent gaps between the mud suction pipe 22 and the partition plate 21 to avoid water leakage during the rotation process.

In describing the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , are constructed and operated in a specific orientation and therefore cannot be construed as limiting the invention.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. The utility model provides a pig raising sewage treatment plant, includes according to anaerobic tank (1), oxygen deficiency pond (2), good oxygen pond (3) and sedimentation tank (4) that the sewage flow direction communicates in proper order, its characterized in that: the water outlet of the aerobic tank (3) is communicated with the water inlet of the anoxic tank (2) through a return pipe (5), the sedimentation tank (4) is communicated with the water inlet of the anoxic tank (2) through a first return pipe (9), the sedimentation tank (4) is communicated with the water inlet of the anaerobic tank (1) through a second return pipe (10), a plurality of baffles (7) are arranged in the anaerobic tank (1) in a direction perpendicular to the water flow to divide the anaerobic tank (1) into a plurality of relatively independent chambers, each chamber is internally provided with a baffle plate (8) parallel to the baffles (7), the bottom of each baffle plate (8) is not in contact with the bottom of the anaerobic tank (1), a stirring cavity (11) is arranged in the sedimentation tank (4), the bottom surface of the stirring cavity (11) is conical, a mud collecting tank (13) is communicated with the lower side of the stirring cavity (11), and a partition plate (21) is arranged on the bottom surface of the mud collecting tank (13, a placing cavity is formed in the sedimentation tank (4) through a partition plate (21), a connecting shaft (25) is arranged in the stirring cavity (11), the connecting shaft (25) is of a hollow structure, a plurality of vertically-arranged liquid outlet holes (28) communicated with the inside are formed in the side wall of the connecting shaft (25), the upper end of the connecting shaft (25) is communicated with a guide pipe (27) through a first rotary joint (26), the guide pipe (27) is connected with a flocculating agent throwing box, a plurality of obliquely-arranged blades (29) are distributed in an annular array on the outer side of the connecting shaft (25), the blades (29) are contacted with the bottom surface and the side wall of the stirring cavity (11), the lower end of the connecting shaft (25) is connected with a sludge suction pipe (22), a sludge suction port (23) is formed in the side wall of the sludge suction pipe (22), and a second rotary joint (18) is communicated with the lower end of the, second rotary joint (18) and second return mud pipe (10) and switch on, it is equipped with motor (14) to place the intracavity, the cover is equipped with action wheel (15) on the output of motor (14), suction dredge (22) are located to place one of intracavity and are served the cover and be equipped with from driving wheel (16), action wheel (15) and follow driving wheel (16) are connected through V belt (17).

2. The swine wastewater treatment device according to claim 1, wherein: the top surface of stirring chamber (11) is equipped with top cap (12), the through-hole has been seted up in top cap (12), first rotary joint (26) are established in the through-hole.

3. The swine wastewater treatment device according to claim 1, wherein: a plurality of through grooves (6) used for water flowing are formed in the paddle (29), and the through grooves (6) are distributed in an array mode on the blade surface of the paddle (29).

4. The swine wastewater treatment device according to claim 3, wherein: the blade (29) is provided with a plurality of flow guide blocks (19), and the flow guide blocks (19) and the through grooves (6) are alternately arranged.

5. The swine wastewater treatment device according to claim 4, wherein: the flow guide block (19) is in a triangular prism shape.

6. The swine wastewater treatment device according to claim 1, wherein: one side of the sludge suction port (23) is connected with a scraper (24), and the scraper (24) is contacted with the side wall of the sludge gathering pool (13) and the top surface of the partition plate (21).

7. The swine wastewater treatment device according to claim 1, wherein: the included angle between the paddle (29) and the vertical surface is 15 degrees to 45 degrees.

8. The swine wastewater treatment device according to claim 1, wherein: the lower part of the baffle plate (8) is bent towards the water flow direction.

9. The swine wastewater treatment device according to claim 1, wherein: the mud suction pipe (22) is sleeved with an oil seal positioned in the partition plate (21).

10. The swine wastewater treatment device according to claim 1, wherein: and a power pump (20) is arranged on the second sludge return pipe (10).