CN209024330U - A kind of country sewage purification tank - Google Patents

Abstract

The utility model belongs to the technical field of sewage treatment equipment, in particular to a rural sewage purification tank, comprising a sedimentation tank and a sewage treatment tank, the sedimentation tank and the sewage treatment tank are connected by a connecting pipe, and an impurity sedimentation device is arranged in the sedimentation tank, A second filter screen is arranged at the lower end of the impurity sedimentation device, and a cleaning device is arranged in the sewage treatment tank. The sewage treatment tank includes a filter chamber, a reaction chamber and an oxidation chamber that are connected in sequence, and a sponge plate is arranged in the filter chamber. An ion exchange membrane is arranged in the reaction chamber, an oxygenation device is arranged in the oxidation chamber, and a disinfectant inlet is also arranged in the oxidation chamber. The utility model can repeatedly precipitate impurities in the sewage, improve the sedimentation efficiency of the impurities, and can also clean the sewage treatment tank to ensure the cleanliness of the equipment and improve its service life.

Description

A kind of rural sewage purification tank

technical field

The utility model belongs to the technical field of sewage treatment equipment, in particular to a rural sewage purification tank.

Background technique

With the improvement of urbanization level, the discharge of domestic sewage in rural areas is also gradually increasing. my country's rural areas produce more than 8 billion tons of domestic sewage every year. However, most villages do not have drainage channels and sewage treatment systems, and domestic sewage is discharged at will. The wanton discharge of untreated domestic sewage has seriously polluted the ecological environment of rural areas, directly threatening the health of farmers and the economic development of rural areas. On the one hand, untreated domestic sewage flows into surface water bodies such as low-lying rivers, lakes and ponds, seriously polluting various water sources; Occurrence and prevalence of endemic and zoonotic diseases. At present, most of the rural areas of the country still drink tap water. If domestic sewage is immersed in groundwater, it may also cause drinking water safety problems.

Since there are few large-scale production enterprises in rural areas, rural sewage is mainly domestic sewage. These sewage generally contain a large amount of organic impurities. A large number of impurities not only make the water very turbid, but also make the water body become bad and smelly. The reason is that for this type of pollution source, corresponding sewage treatment equipment is required to effectively treat these sewage containing a large amount of impurities. However, the sewage treatment equipment in the prior art generally treats these impurities through simple filtration, or directly adding flocculants and other substances to the sewage for treatment. Due to the large amount of sewage, first, the flocculants are not easy to mix with the sewage. Fully integrated, insufficient precipitation. Second, there is a certain flow of sewage, which will directly enter the next treatment process with a large amount of impurities. This kind of treatment can only simply filter and precipitate a part of larger impurities, and a large amount of smaller impurities. The impurities are still untreated and flow away directly with the sewage, and the treatment effect is poor. Moreover, there is no cleaning device in the current sewage treatment equipment, and a large amount of dirt will accumulate in the sewage treatment equipment during long-term work. If it cannot be cleaned in time, the service life of the equipment will be affected.

Utility model content

In order to solve the above problems existing in the prior art, the purpose of this utility model is to provide a rural sewage purification tank to solve the technical problems of poor impurity precipitation capability, low precipitation efficiency and no cleaning device in the prior art sewage treatment equipment.

The technical scheme adopted by the utility model is: a rural sewage purification tank, including a sedimentation tank and a sewage treatment tank, a water inlet pipe is arranged in the middle of the sedimentation tank, a drain port is arranged at the end of the sewage treatment tank, and the sedimentation tank It is connected with the sewage treatment tank through a connecting pipe, and an impurity sedimentation device is arranged in the sedimentation tank. The impurity sedimentation device includes a guide tube, a slant plate, a guide tube bracket, a first filter screen, a rotating tube, a flocculant box, a stirring Blades and a second filter screen, the guide cylinder is suspended in the sedimentation tank by a guide cylinder bracket fixedly connected to the inner wall of the sedimentation tank, a plurality of inclined plates are arranged in the guide cylinder, and the upper end of the guide cylinder is provided with a plurality of inclined plates. A first filter screen is provided, the top of the sedimentation tank is provided with a rotating pipe, the rotating pipe is a hollow pipe, and the upper end of the rotating pipe is rotatably connected with a flocculant box, and the rotating pipe passes through the first filter screen and is The end is located in the diversion cylinder, the rotating pipe is provided with a plurality of stirring blades, the lower end of the diversion cylinder is provided with a second filter screen, the sewage treatment tank is provided with a cleaning device, and the sewage treatment tank includes sequentially connected The filter chamber is provided with a sponge plate, the reaction chamber is provided with an ion exchange membrane, the oxidation chamber is provided with an oxygenation device, and the oxidation chamber is also provided with a disinfectant inlet.

Further, support rods are fixedly arranged on both sides of the inner wall of the sedimentation tank, the second filter screen is connected to the support rod through a connecting rod, and the connecting rod is rotatably connected with the second filter screen and the support rod. An electric cylinder is arranged on the outer wall of the sedimentation tank, the connecting rod is connected with the electric cylinder through a pushing rod, and the connecting rod is slidably connected with the pushing rod. The second filter screen is mainly used to filter the precipitated impurities, and at the same time prevent the filtered impurities from returning to the middle or upper part of the sedimentation tank. The support rod and the connecting rod are mainly used to support and fix the second filter screen. It may be larger in size and may block the second filter screen. In order to solve this problem, it is preferable to set an electric cylinder to drive the second filter screen to vibrate, and a push rod is set on the connecting rod to connect the electric cylinder. The second filter screen can vibrate normally, the connecting rod is connected with the second filter screen and the support rod in rotation, the electric cylinder drives the push rod to move left and right, the push rod is slidably connected with the connecting rod, and drives one end of the connecting rod to rotate around the support rod, which is connected to the connecting rod. The second filter screen at the other end of the rod moves in an arc shape, that is, the second filter screen shakes left and right while vibrating up and down to filter the impurities on the second filter screen.

Further, a water pump is also provided on the connecting pipe, one end of the connecting pipe located in the sedimentation tank is located above the first filter net, and the connecting pipe at this end is provided with a filter ball net. The connecting pipe is mainly used to extract the water in the sedimentation tank into the sewage treatment tank. The water pump mainly provides the power for the connecting pipe to extract. The end of the connecting pipe located in the sedimentation tank is set above the first filter screen, mainly to ensure that the extracted water is fully extracted. It is the water quality that has been completely precipitated. The first filter screen can prevent the flocculant and the initially precipitated impurities from being taken away with the water in the connecting pipe. The connecting pipe is provided with a filter ball net to further prevent impurities from entering the connecting pipe.

Further, a sedimentation pump is arranged at the bottom of the sedimentation tank, a sedimentation discharge pipe is arranged on one side of the bottom of the sedimentation tank, and the sedimentation extraction pump is connected with the sedimentation discharge pipe. Various impurities precipitated in the sedimentation tank will accumulate together to form sludge. If these sludges cannot be treated in time, when they accumulate to a certain extent, the sedimentation effect of the sedimentation tank will be affected, and the water in the entire sedimentation tank will be turbid. The significance of sedimentation is lost. Preferably, a sedimentation pump is provided at the bottom of the sedimentation tank, and a sedimentation discharge pipe is connected to the sedimentation pump. The sedimentation pump can timely extract the impurities deposited in the sedimentation tank and discharge it through the sedimentation discharge pipe. .

Further, a drive motor is provided on the top of the sedimentation tank, and the drive motor is connected with the rotating pipe through a conveyor belt. The main purpose of the rotating pipe is to introduce the flocculant into the sewage and drive the stirring blade to stir the flocculant and the sewage evenly, so as to improve the sedimentation efficiency. The rotating pipe can be driven in various ways. Preferably, a driving motor is provided on the top of the sedimentation tank, and the driving motor is connected with the rotating pipe through a conveyor belt. This driving method has the advantages of smooth transmission and low noise.

Further, slots are provided in both the filter chamber and the reaction chamber, and the sponge plate and the ion exchange membrane are both arranged in the slots. The slot is mainly used to fix the sponge plate and ion exchange membrane. The sponge plate and ion exchange membrane will inevitably accumulate some dirt due to long-term work. When cleaning is required, it can be easily removed from the slot for cleaning. Cleaning, when the sponge plate and ion exchange membrane are damaged, they can also be easily removed for replacement.

Further, the cleaning device includes a water pipe and a rotary nozzle, the water pipe is located at the top of the sewage treatment tank, the filter chamber, the reaction chamber and the oxidation chamber are all provided with a rotary nozzle, and the rotary nozzle is rotatably connected to the water pipe. The cleaning device is mainly used to clean the sewage treatment tank and the corresponding internal equipment to ensure a good working environment. The water pipe is mainly used to provide enough clean water. The rotating nozzle sprays the water to various parts in the sewage treatment tank at a certain pressure. It is connected with the water pipe in rotation. Since the water has a certain pressure when it is sprayed, its reaction force will also drive the rotating nozzle to rotate, so as to ensure that all corners in the sewage treatment tank can be washed and improve the washing efficiency.

Further, the bottom of the oxygenation device runs through the inside of the oxidation chamber through an air supply pipe, and the air supply pipe is provided with a plurality of air supply ports. The oxygenation device can provide a large amount of oxygen in the sewage, realize the oxidation of some substances in the sewage, and at the same time ensure that the sewage has a good oxygen content, ensuring that the purified sewage is suitable for the normal growth of organisms. The air supply pipe mainly introduces oxygen into In the sewage, setting up multiple air supply ports can evenly introduce oxygen into the water.

Further, the end of the rotating tube is provided with a shower head. The shower head mainly sprays the flocculant discharged through the rotating tube into the sewage in a multi-angle and uniform manner to ensure more uniform mixing of the flocculant and the sewage.

Further, the guide tube is a hollow tube, and the water inlet pipe is located at the bottom of the guide tube. The diversion cylinder is a hollow cylinder, which is convenient for the flow of sewage and the mixing with flocculant. The water inlet pipe is set at the bottom of the diversion cylinder, and the water flowing out from the water inlet pipe will flow upward along the diversion cylinder. Provides an upward impulse to combine the impurities in the newly entered sewage with the impurities that are being precipitated. When the impurities are sufficiently large and their own weight is enough to overcome the impulse provided by the water flow, they will settle to the bottom of the sedimentation tank.

The beneficial effects of the present utility model are:

1. By setting up the impurity sedimentation device, the flocculant is continuously added to the sewage and stirred to ensure that the sewage entering from the water inlet pipe is continuously and fully adsorbed with the flocculant in the sedimentation tank and the impurities that are being precipitated and become larger, and the impurity sedimentation device It is arranged between the connecting pipe and the water inlet pipe to ensure that the water flowing out from the connecting pipe can be sufficiently precipitated, and the impurities in the sewage are precipitated to the greatest extent, which improves the working efficiency of sewage sedimentation; The device can clean the sewage treatment tank after work through the cleaning device to ensure the cleanliness of the sewage treatment tank, avoid long-term accumulated dirt from clogging the corresponding equipment, and prolong the service life of the device.

2. By setting the support rod, connecting rod, push rod and electric cylinder, the electric cylinder drives the push rod to move left and right, and the push rod pushes the connecting rod to rotate around the support rod, so as to realize the up and down vibration of the second filter screen, which will fall on the second filter screen. The impurities on the net are filtered, and the second filter screen can also prevent the filtered impurities from flowing into the upper part of the sedimentation tank with the sewage.

3. By setting the slot, the sponge plate and the ion exchange membrane are fixed in the slot. When the sponge plate and the ion exchange membrane are damaged or accumulate a lot of dirt, they can be easily removed from the slot for further cleaning. Replace and clean.

4. By setting a shower nozzle at the end of the rotating pipe, the flocculant discharged through the rotating pipe is sprayed into the sewage with a shower nozzle to ensure more uniform mixing of the flocculant.

5. By setting a sedimentation pump and a sedimentation discharge pipe, the impurities precipitated in the sedimentation tank can be discharged in time to prevent the impurities from flowing into the sewage treatment tank through the connecting pipe.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

In the figure: 1-sedimentation tank; 2-sewage treatment tank; 3-water inlet pipe; 4-connecting pipe; -Rotating tube; 10-flocculant box; 11-stirring blade; 12-second filter screen; 13-connecting rod; 14-support rod; 15-push rod; 16-electric cylinder; 17-sedimentation pump; 18- Sedimentation discharge pipe; 19-drive motor; 20-conveyor belt; 21-shower head; 22-filter ball net; 23-water pump; 24-filter chamber; 25-sponge plate; 26-slot; 27-water pipe; 28-rotation Nozzle; 29-reaction chamber; 30-ion exchange membrane; 31-oxidation chamber; 32-oxygenation device; 33-disinfectant inlet; 34-air supply pipe; 35-water outlet; 36-valve.

Detailed ways

The present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

Example 1:

As shown in FIG. 1, a rural sewage purification tank includes a sedimentation tank 1 and a sewage treatment tank 2. A water inlet pipe 3 is arranged in the middle of the sedimentation tank 1, and a drain port 35 is arranged at the end of the sewage treatment tank 2. The The sedimentation tank 1 and the sewage treatment tank 2 are connected by a connecting pipe 4. The sedimentation tank 1 is provided with an impurity sedimentation device. The impurity sedimentation device includes a guide tube 5, a sloping plate 6, a guide tube support 7, a first filter The net 8, the rotating tube 9, the flocculant box 10, the stirring blade 11, the second filter screen 12, the guide tube 5 is suspended in the sedimentation tank 1 through the guide tube bracket 7 fixedly connected to the inner wall of the sedimentation tank 1 , a plurality of inclined plates 6 are arranged in the guide cylinder 5, the upper end of the guide cylinder 5 is provided with a first filter screen 8, and the top of the sedimentation tank 1 is provided with a rotating pipe 9, and the rotating pipe 9 is in the middle Empty pipe, the upper end of the rotating pipe 9 is rotatably connected with a flocculant box 10, the rotating pipe 9 passes through the first filter screen 8 and its end is located in the guide cylinder 5, and a plurality of stirring pipes are arranged on the rotating pipe 9 The blade 11, the lower end of the guide cylinder 5 is provided with a second filter screen 12, the sewage treatment tank 2 is provided with a cleaning device, and the sewage treatment tank 2 includes a filter chamber 24, a reaction chamber 29 and an oxidation chamber connected in sequence 31. The filtration chamber 24 is provided with a sponge plate 25, the reaction chamber 29 is provided with an ion exchange membrane 30, the oxidation chamber 31 is provided with an oxygenation device 32, and the oxidation chamber 31 is also provided with a disinfectant Entrance 33.

Working principle: When the device of the present utility model is working, the sewage enters the sedimentation tank 1 from the water inlet pipe 3, and the flocculant in the flocculant box 10 on the top of the sedimentation tank 1 is scattered into the sewage in the sedimentation tank 1 through the rotating pipe 9 In the process, the flocculant is combined with the impurities in the sewage to precipitate. Since the rotating rod 9 is located in the diversion cylinder 5, most of the precipitation is carried out in the diversion cylinder 5. Due to the stirring effect, the diversion cylinder 5 Cooperating with the stirring blade 11, the sewage inside and outside the guide tube can generate a stable circulating flow state, and the inclined plate 6 arranged in the guide tube 5 also has the function of guide flow, and at the same time facilitates the adhesion of impurities, so that the inside of the guide tube can be The impurities in the sewage are continuously precipitated to improve the sedimentation efficiency, and the inclined plate 6 is inclined along the same circumferential direction. Due to the continuous entry of sewage into the water inlet pipe 3, the entering sewage flows from the bottom to the top relative to the sewage in the diversion tube, so it will generate upward lift force on the impurities, and at the same time, new sewage will continuously enter the diversion tube 5 and the flocculant. as well as smaller impurities. Since the impurities themselves also have a certain gravity, when the gravity of the impurities is less than the upward momentum, they will be combined with the impurities and flocculants in the newly entered sewage by the upward momentum until they are sufficiently large; When the gravity is greater than the upward impulse, it will descend to the bottom of the sedimentation tank 1 through the second filter screen 12, and then be discharged from the sedimentation tank 1 through the corresponding device. Sewage continuously enters, and continuously combines with flocculant and smaller impurities in the guide tube 5 until the impurities settle to the bottom of the sedimentation tank 1 when they are large enough. This device can ensure that the impurities in the sewage can Repeated precipitation is obtained to ensure that the water impurity content after precipitation is low. The precipitated water is located in the upper layer of the sedimentation tank 1, and flows upward with the continuous influx of sewage, and is filtered by the first filter screen 8, and then flows into the sewage treatment tank 2 from the connecting pipe 4. The sewage treatment tank The water in 2 will be further filtered by the sponge plate 25, the filtered water will be purified through the ion exchange membrane 30, and the subsequent oxygenation device will provide corresponding oxygen for the sewage, and oxidize some substances in the sewage, and some Oxygen will also dissolve in the sewage to maintain the oxygen content of the sewage. The disinfectant inlet can add corresponding disinfectants and deodorants to the sewage to disinfect the sewage and remove odors. In order to maintain the pressure in the sewage treatment tank Balance, and a plurality of exhaust holes (not shown in the figure) are also opened in the sewage treatment tank to discharge the excess gas in the sewage treatment tank 2 .

When the sewage treatment tank 2 needs to be cleaned, close the valve 36 on the connecting pipe 4, then drain the sewage in the sewage treatment tank 2, then close the drain port 35, open the valve on the water pipe 27, and drain the sewage into the sewage treatment tank. Inject clean water, because the water pipe 27 is provided with a rotating nozzle 28, the water in the water pipe 27 is injected with a certain pressure, and the clean water is sprayed from the rotating nozzle 28 to flush the sewage treatment tank 2. Because the rotating nozzle 28 is connected to the water pipe in rotation, The water is sprayed from the rotating nozzle 28 at high pressure, and the water column will generate a reaction force to drive the rotating nozzle 28 to rotate, flushing the surroundings of the sewage treatment tank 2 to improve the flushing effect.

Example 2:

As a preferred solution of the present invention, on the basis of Example 1, support rods 14 are fixed on both sides of the inner wall of the sedimentation tank 1, and the second filter screen 12 is connected to the support rod 14 through the connecting rod 13, so The connecting rod 13 is connected in rotation with the second filter screen 12 and the support rod 14. An electric cylinder 16 is provided on the outer wall of the sedimentation tank 1. The connecting rod 13 is connected with the electric cylinder 16 through the push rod 15. The connection The rod 13 is slidably connected with the push rod 15 . The second filter screen 12 is mainly used to filter the precipitated impurities, while preventing the filtered impurities from returning to the middle or upper part of the sedimentation tank 1. The support rod 14 and the connecting rod 13 are mainly used to support and fix the second filter screen 12. The impurities deposited for the first time may be large in volume and may block the second filter screen 12. In order to solve this problem, preferably, an electric cylinder 16 is provided to drive the second filter screen 12 to vibrate, and a push rod is provided on the connecting rod 13. 15 is used to connect the electric cylinder. In order to ensure that the second filter screen 12 can vibrate normally, the connecting rod 13 is connected with the second filter screen 12 and the support rod 14 in rotation. The electric cylinder 16 drives the push rod 15 to move left and right. The connecting rod 13 is slidably connected, which drives one end of the connecting rod 13 to rotate around the support rod 14, and the second filter screen 12 connected to the other end of the connecting rod 13 moves in an arc shape, that is, the second filter screen 12 vibrates up and down while shaking left and right. The impurities on the second filter screen 12 are screened and filtered.

Example 3:

As a preferred solution of the present invention, on the basis of Example 1, a water pump 23 is also provided on the connecting pipe 4, and one end of the connecting pipe 4 located in the sedimentation tank 1 is located above the first filter screen 8, and the The end connecting pipe 4 is provided with a filter ball net 22 . The connecting pipe 4 is mainly used to extract the water in the sedimentation tank 1 into the sewage treatment tank 2. The water pump 23 mainly provides the power for the connecting pipe 4 to extract. 8 above, mainly to ensure that the extracted water is completely precipitated water quality, the first filter 8 can prevent the flocculant and the preliminarily precipitated impurities from being carried away with the water in the connecting pipe 4, and the connecting pipe 4 is provided with There is a filter ball net 22 to further prevent impurities from entering the connecting pipe 4 .

Example 4:

As shown in FIG. 1, a rural sewage purification tank includes a sedimentation tank 1 and a sewage treatment tank 2. A water inlet pipe 3 is arranged in the middle of the sedimentation tank 1, and a drain port 35 is arranged at the end of the sewage treatment tank 2. The The sedimentation tank 1 and the sewage treatment tank 2 are connected by a connecting pipe 4. The sedimentation tank 1 is provided with an impurity sedimentation device. The impurity sedimentation device includes a guide tube 5, a sloping plate 6, a guide tube support 7, a first filter The net 8, the rotating tube 9, the flocculant box 10, the stirring blade 11, the second filter screen 12, the guide tube 5 is suspended in the sedimentation tank 1 through the guide tube bracket 7 fixedly connected to the inner wall of the sedimentation tank 1 , a plurality of inclined plates 6 are arranged in the guide cylinder 5, the upper end of the guide cylinder 5 is provided with a first filter screen 8, and the top of the sedimentation tank 1 is provided with a rotating pipe 9, and the rotating pipe 9 is in the middle Empty pipe, the upper end of the rotating pipe 9 is rotatably connected with a flocculant box 10, the rotating pipe 9 passes through the first filter screen 8 and its end is located in the guide cylinder 5, and a plurality of stirring pipes are arranged on the rotating pipe 9 The blade 11, the lower end of the guide cylinder 5 is provided with a second filter screen 12, the sewage treatment tank 2 is provided with a cleaning device, and the sewage treatment tank 2 includes a filter chamber 24, a reaction chamber 29 and an oxidation chamber connected in sequence 31. The filtration chamber 24 is provided with a sponge plate 25, the reaction chamber 29 is provided with an ion exchange membrane 30, the oxidation chamber 31 is provided with an oxygenation device 32, and the oxidation chamber 31 is also provided with a disinfectant Entrance 33.

Support rods 14 are fixed on both sides of the inner wall of the sedimentation tank 1, and the second filter screen 12 is connected to the support rod 14 through the connecting rod 13. The connecting rod 13 and the second filter screen 12 and the support rod 14 are both. Rotationally connected, an electric cylinder 16 is arranged on the outer wall of the sedimentation tank 1 , the connecting rod 13 is connected with the electric cylinder 16 through a push rod 15 , and the connecting rod 13 is slidably connected with the push rod 15 .

The connecting pipe 4 is also provided with a water pump 23 , one end of the connecting pipe 4 located in the sedimentation tank 1 is located above the first filter screen 8 , and the connecting pipe 4 at this end is provided with a filter ball net 22 .

A sedimentation pump 17 is provided at the bottom of the sedimentation tank 1 , and a sedimentation discharge pipe 18 is provided on one side of the bottom of the sedimentation tank 1 , and the sedimentation pump 17 is connected with the sedimentation discharge pipe 18 . Various impurities precipitated in the sedimentation tank 1 will accumulate together to form sludge. If these sludges cannot be treated in time, when they accumulate to a certain extent, the sedimentation effect of the sedimentation tank will be affected, and the water in the entire sedimentation tank will be turbid. In this way, the meaning of precipitation is lost. Preferably, a precipitation pump 17 is provided at the bottom of the sedimentation tank 1, and a sedimentation discharge pipe 18 is connected to the sedimentation pump 17. Impurities are extracted and discharged through the sediment discharge pipe.

The top of the sedimentation tank 1 is provided with a drive motor 19 , and the drive motor 19 is connected to the rotating pipe 9 through a conveyor belt 20 in a driving manner. The main purpose of the rotating pipe 9 is to introduce the flocculant into the sewage and to drive the stirring blade 11 to stir the flocculant and the sewage evenly, so as to improve the sedimentation efficiency. The rotating pipe 9 can be driven in various ways. Preferably, a driving motor 19 is provided on the top of the sedimentation tank 1, and the driving motor 19 is connected with the rotating pipe 9 through a conveyor belt 20. This driving method has the advantages of smooth transmission and low noise.

Both the filter chamber 24 and the reaction chamber 29 are provided with a slot 26 , and the sponge plate 25 and the ion exchange membrane 30 are both provided in the slot 26 . The slot 26 is provided mainly for the convenience of fixing the sponge plate 25 and the ion exchange membrane 30. The sponge plate 25 and the ion exchange membrane 30 will inevitably accumulate some dirt due to long-term work. When cleaning is required, it can be easily removed from the slot. When the sponge plate 25 and the ion exchange membrane 30 are damaged, they can also be easily taken out for replacement.

The cleaning device includes a water pipe 27 and a rotary nozzle 28. The water pipe 27 is located at the top of the sewage treatment tank 2. The filter chamber 24, the reaction chamber 29 and the oxidation chamber 31 are all provided with a rotary nozzle 28, and the rotary nozzle 28 rotates. Connected to the water pipe 27. The cleaning device is mainly used to clean the sewage treatment tank and the corresponding equipment inside to ensure a good working environment. The water pipe 27 is mainly used to provide enough clean water, and the rotating nozzle 28 sprays the water to various parts in the sewage treatment tank with a certain pressure. The rotating nozzle 28 is rotatably connected to the water pipe 27. Since the water has a certain pressure when it is sprayed, its reaction force will also drive the rotating nozzle 28 to rotate, so as to ensure that every corner in the sewage treatment tank can be flushed and improve the flushing efficiency.

The bottom of the oxygenation device 32 penetrates through the inside of the oxidation chamber 31 through an air supply pipe 34, and the air supply pipe 34 is provided with a plurality of air supply ports. The oxygenation device 32 can provide a large amount of oxygen in the sewage, realize the oxidation of some substances in the sewage, and at the same time ensure that the sewage has a good oxygen content, ensuring that the purified sewage is suitable for the normal growth of organisms. Oxygen is introduced into the sewage, and multiple air supply ports can be set up to introduce oxygen evenly into the water.

The end of the rotating tube 9 is provided with a shower head 21 . The shower head 21 mainly sprays the flocculant discharged through the rotating pipe 9 into the sewage in a multi-angle and uniform manner, so as to ensure more uniform mixing of the flocculant and the sewage.

The diversion cylinder 5 is a hollow cylinder, and the water inlet pipe 3 is located at the bottom of the diversion cylinder 5 . The diversion cylinder 5 is a hollow cylinder, which is convenient for the flow of sewage and the mixing with the flocculant. The water inlet pipe 3 is set at the bottom of the diversion cylinder, and the water flowing out from the water inlet pipe will flow upward along the diversion cylinder 5, and the whole diversion tube will flow upwards. The sewage in the cylinder 5 provides an upward impulse, so that the impurities in the sewage that just entered are combined with the impurities that are being precipitated. When the impurities are sufficiently large and their own weight is enough to overcome the impulse provided by the water flow, they will settle to the bottom of the sedimentation tank. .

It is worth noting that the treatment device in this embodiment is actually tested in a certain place in the north, and the average daily sewage treatment volume is 100 cubic meters, and the water quality of the effluent is independently tested. At 70mg/L, it meets the requirements of the national first-level emission standard; and after adding corresponding drugs to the device for treatment, other corresponding indicators are tested to meet the national second-level emission standard requirements.

The present utility model is not limited to the above-mentioned optional embodiments, and anyone can draw other various forms of products under the inspiration of the present utility model. The technical solutions within the scope defined by the claims all fall within the protection scope of the present invention.

Claims (10)

1. a kind of country sewage purification tank, including sedimentation basin (1) and treatment tank (2), it is characterised in that: the sedimentation basin (1) middle part be provided with water inlet pipe (3), treatment tank (2) end is provided with discharge outlet (35), the sedimentation basin (1) and Treatment tank (2) is connected by connecting tube (4), is provided with contamination precipitation device, the contamination precipitation in the sedimentation basin (1) Device include guide shell (5), inclined plate (6), water conservancy diversion tube stent (7), the first filter screen (8), rotation pipe (9), flocculant box (10), Stirring blade (11), the second filter screen (12), the guide shell (5) pass through the water conservancy diversion that is fixedly connected on sedimentation basin (1) inner wall Tube stent (7) suspension setting is provided with multiple inclined plates (6), the guide shell (5) in sedimentation basin (1) in the guide shell (5) Upper end is provided with the first filter screen (8), is provided with rotation pipe (9) at the top of the sedimentation basin (1), and the rotation pipe (9) is hollow Pipe, rotation pipe (9) upper end is rotatably connected to flocculant box (10), the rotation pipe (9) pass through the first filter screen (8) and its End is located in guide shell (5), is provided with multiple stirring blades (11) on the rotation pipe (9), guide shell (5) lower end is set Be equipped with the second filter screen (12), be provided with cleaning device in the treatment tank (2), the treatment tank (2) include according to Filter chamber (24), reaction chamber (29) and the oxidizing chamber (31) of secondary connection, the filter chamber (24) is interior to be provided with sponge plate (25), institute It states and is provided with amberplex (30) in reaction chamber (29), be provided with oxygenate apparatus (32), the oxygen in the oxidizing chamber (31) Change room (31) and is additionally provided with disinfectant entrance (33).

2. a kind of country sewage purification tank according to claim 1, it is characterised in that: sedimentation basin (1) the inner wall two sides It is fixedly installed strut (14), second filter screen (12) is connected on strut (14) by connecting rod (13), the connection Bar (13) and the second filter screen (12) and strut (14) are rotation connection, are provided with electric cylinders on sedimentation basin (1) outer wall (16), the connecting rod (13) is connected by catch bar (15) with electric cylinders (16), and the connecting rod (13) and catch bar (15) are sliding Dynamic connection.

3. a kind of country sewage purification tank according to claim 1 or 2, it is characterised in that: also set on the connecting tube (4) It is equipped with water pump (23), the connecting tube (4) is located at one end in sedimentation basin (1) and is located above the first filter screen (8), and the end connects Filtering net (22) is provided on adapter tube (4).

4. a kind of country sewage purification tank according to claim 1, it is characterised in that: sedimentation basin (1) the bottom setting Have precipitating draw-off pump (17), sedimentation basin (1) bottom side is provided with precipitating delivery pipe (18), the precipitating draw-off pump (17) It is connect with precipitating delivery pipe (18).

5. a kind of country sewage purification tank according to claim 1, it is characterised in that: setting at the top of the sedimentation basin (1) Have driving motor (19), the driving motor (19) is sequentially connected by conveyer belt (20) and rotation pipe (9).

6. a kind of country sewage purification tank according to claim 1, it is characterised in that: the filter chamber (24) and reaction chamber (29) it is provided with slot (26) in, the sponge plate (25) and amberplex (30) are arranged in slot (26).

7. a kind of country sewage purification tank according to claim 1, it is characterised in that: the cleaning device includes water pipe (27) and rotary nozzle (28), the water pipe (27) are located at treatment tank (2) top, the filter chamber (24), reaction chamber (29) and in oxidizing chamber (31) it is provided with rotary nozzle (28), rotary nozzle (28) rotation is connected on water pipe (27).

8. a kind of country sewage purification tank according to claim 1, it is characterised in that: oxygenate apparatus (32) bottom is logical It crosses air supply pipe (34) and is applied in oxidizing chamber (31) inside, be provided with multiple air supply openings on the air supply pipe (34).

9. a kind of country sewage purification tank according to claim 1, it is characterised in that: rotation pipe (9) the end setting There are seedpod of the lotus spray head (21).

10. a kind of country sewage purification tank according to claim 1, it is characterised in that: the guide shell (5) is hollow Cylinder, the water inlet pipe (3) are located at guide shell (5) bottom.