An adjustable reflux device suitable for sewage integrated wastewater treatment equipment

Abstract

The present application belongs to the technical field of water treatment equipment, and in particular, relates to an adjustable reflux device suitable for sewage integrated wastewater treatment equipment, including a pool body, wherein a partition is arranged inside the pool body, and the partition divides the inside of the pool body into different functional areas. The device also includes a flow regulating mechanism, and the flow regulating mechanism can adjust the flow and proportion of water entering different functional areas. The use of this reflux device can save space and adjust the reflux volume as needed. When the water intake of the integrated equipment is low, the water circulation flow can be ensured to reduce the space occupied by the original equipment, so that the equipment space can be efficiently utilized, which is conducive to the bacterial flora in the adjustable reflux device of the present application being in the best state, and is conducive to the adjustable reflux device of the present application to achieve good ammonia nitrogen and COD removal effects, and can make the equipment run efficiently. The equipment of the present application will have a wide range of uses in the field of environmental protection equipment.

Description

Technical Field

[0001] The present application belongs to the technical field of water treatment equipment, and in particular to a reflux device suitable for integrated sewage treatment equipment. Background Art

[0002] my country is vigorously building new rural areas, constructing an ecological civilization society, and realizing rural revitalization. However, there are no relatively centralized sewage treatment plants in rural areas where the population is relatively scattered and the municipal supporting facilities are not yet perfect. The decentralized sewage generated by each household is generally discharged directly, which seriously restricts the pace of rural revitalization. Decentralized sewage treatment integrated technology, as a small sewage treatment facility, can solve the domestic sewage generated in remote areas such as new rural areas and tourist resorts on site.

[0003] As a set of integrated equipment, traditional AAO decentralized sewage integrated equipment usually sets up biochemical sedimentation tanks and flocculation sedimentation tanks after aerobic tanks to adjust the return flow and improve the process in order to ensure that all indicators of wastewater treatment can be met. This method cannot accurately control the diversion rate of water flow, and cannot be adjusted according to the diversion or return ratio of water flow. In addition, this method also has the problems of large equipment space occupation and low equipment operation efficiency. Summary of the invention

[0004] In order to solve one of the above problems, the present application provides an adjustable reflux device suitable for an integrated sewage treatment equipment, comprising a pool body, wherein a partition is arranged inside the pool body, and the partition divides the inside of the pool body into different functional areas, characterized in that it also includes a flow regulating mechanism, and the flow regulating mechanism can adjust the flow and proportion of water entering different functional areas.

[0005] Preferably, two partitions are arranged inside the water pool body, and the two partitions divide the water pool body into three different functional areas, namely, a water inlet pool, a reflow pool and a sedimentation pool. A partition is arranged between the reflow pool and the sedimentation pool. The water inlet pool is located in the middle, and the reflow pool and the sedimentation pool are located on both sides of the water inlet pool. A water inlet is arranged at the bottom or top of the water inlet pool, and a water outlet is arranged at the bottom of the reflow pool and the sedimentation pool for directing water to the corresponding process pools.

[0006] Preferably, a partition is provided between the reflow tank and the sedimentation tank at the same height to achieve uniform water inflow on both sides and control the reflow ratio to 1 / 2.

[0007] Preferably, the flow regulating mechanism is provided with a flow regulating switch for the water outlet, which can adjust the reflux ratio.

[0008] Preferably, more accurate regulation of the flow ratio is achieved through the cooperation of the electromagnetic flowmeter and the flow regulating switch.

[0009] Preferably, the flow regulating mechanism is a rotary adjustable valve, and the rotary adjustable valve is arranged at the upper end of the partition between the water inlet pool and the return pool to adjust the return flow rate.

[0010] Preferably, the rotary adjustable valve has three gears, and the water overflow is controlled by rotating the adjusting gate.

[0011] Preferably, the rotary adjustable valve is controlled by a manual rotary handle at the front end to switch the gate.

[0012] Preferably, the adjustable valve is embedded in the partition and can move up and down to control the overflow of water.

[0013] Preferably, the adjustable valve is controlled to move up and down by a manual rotating handle at the upper end.

[0014] Compared with the prior art, the adjustable reflux device of the present application has achieved the following significant progress: in the original technical solution, the reflux of the nitrifying liquid is carried out in the sedimentation tank by a pump. The reflux device of the present application can adjust the reflux ratio of the nitrifying liquid as needed, and increase the reflux ratio when the amount of rural sewage discharged is low. The sludge in the middle area can be used for sludge seed retention. The device occupies very little space in the sewage treatment device, has a good diversion control function, and controls the reflux ratio by the water inlet flow rate. The use of this reflux device can save space and adjust the reflux amount as needed. When the water inlet of the integrated equipment is low, the water circulation flow can be guaranteed. It has the characteristics of simple operation and maintenance and low operating costs.

[0015] In addition, the present application adopts a rotary adjustable reflux device, which can, on the one hand, further reduce the space occupied by the original equipment and make efficient use of the equipment space. On the other hand, this device can also intelligently adjust the reflux flow rate, which is conducive to the bacterial flora in the adjustable reflux device of the present application being in the best state, and is conducive to the adjustable reflux device of the present application achieving good ammonia nitrogen and COD removal effects, which can make the equipment run efficiently, and the equipment of the present application will have a wide range of uses in the field of environmental protection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : is a schematic diagram of a preferred structure of the adjustable reflux device described in this application;

[0017] Figure 2 : is another preferred structural schematic diagram of the adjustable reflux device described in the present application;

[0018] Figure 3 : is another preferred structural schematic diagram of the adjustable reflux device described in this application. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments in the present application to clearly and completely describe the technical solutions in the present application. The description herein is only used to explain the present application, rather than to limit the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0020] Example 1

[0021] like Figure 1 As shown, an adjustable reflux device suitable for integrated sewage treatment equipment includes a pool body, a partition 3 is arranged inside the pool body, the partition divides the inside of the pool body into different functional areas, and also includes a flow regulating mechanism, which can adjust the flow and proportion of water entering different functional areas.

[0022] Two partitions 3 are arranged inside the water pool body, and the two partitions 3 divide the water pool body into three different functional areas, namely, an inlet pool 2, a reflow pool 5 and a sedimentation pool 4. A partition 3 is arranged between the reflow pool 5 and the sedimentation pool 4. The inlet pool 2 is located in the middle, and the reflow pool 5 and the sedimentation pool 4 are located on both sides of the inlet pool 2. A water inlet 1 is arranged at the bottom or top of the inlet pool 2, and a water outlet 6 is arranged at the bottom of the reflow pool and the sedimentation pool for directing water to the corresponding process pools.

[0023] The following describes the working principle and use method of the adjustable reflux device described in the present application. The sewage lifted from the aerobic pool in the integrated device enters the water inlet pool 2 through the water inlet 1, and water begins to be stored in the water inlet pool 2. The baffle 3 leading to the reflow pool 5 on the left and the sedimentation pool 4 on the right is fixed and at the same height. At this time, the reflux ratio is 1 / 2. When the water storage reaches a certain water level, the water begins to overflow to both sides. The overflow on the left side enters the reflow pool 5 through the baffle 3 and then enters the anoxic pool through the reflow pool outlet 6. The overflow on the right side enters the sedimentation pool 4 through the baffle 3 and then enters the flocculation sedimentation pool through the sedimentation pool outlet 6. When it is necessary to adjust the reflux ratio, the electromagnetic flowmeter 8 reading can be observed to adjust the flow switch 7 to control the proportion of water in the water inlet pool 2 entering the reflow pool. When the amount of sewage is low, the reflux ratio can be increased to ensure the flow of water in the integrated device. The water in the reflow pool 5 flows back to the anoxic pool through the reflow pool outlet 6. Compared with the prior art, the adjustable reflux device of the present application has achieved the following significant progress. In the original technical solution, the nitrification liquid is refluxed in the sedimentation tank by a pump. The reflux device of the present application can adjust the nitrification liquid reflux ratio as needed, and increase the reflux ratio when the rural sewage discharge volume is low. The sludge in the middle area can be used for sludge seed.

[0024] Example 2

[0025] like Figure 2As shown, an adjustable reflux device suitable for integrated sewage treatment equipment includes a pool body, a partition 3 is arranged inside the pool body, the partition divides the inside of the pool body into different functional areas, and also includes a flow regulating mechanism, which can adjust the flow and proportion of water entering different functional areas.

[0026] Two partitions 3 are arranged inside the water pool body, and the two partitions 3 divide the water pool body into three different functional areas, namely, an inlet pool 2, a reflow pool 5 and a sedimentation pool 4. A partition 3 is arranged between the reflow pool 5 and the sedimentation pool 4. The inlet pool 2 is located in the middle, and the reflow pool 5 and the sedimentation pool 4 are located on both sides of the inlet pool 2. A water inlet 1 is arranged at the bottom or top of the inlet pool 2, and a water outlet 6 is arranged at the bottom of the reflow pool and the sedimentation pool for directing water to the corresponding process pools.

[0027] The flow regulating mechanism is a rotatable adjustable valve 16, which is arranged at the upper end of the partition 3 between the water inlet pool 2 and the return pool 5, and is used to adjust the return flow rate.

[0028] The rotary adjustable valve 16 has three gears, and the water overflow is controlled by rotating the gate. The rotary adjustable valve is composed of a transmission shaft 17, three gears set on the transmission shaft 17 and a manual rotating handle 18 at the front end. The rotary adjustable valve controls the gate switching by the manual rotating handle 18 at the front end.

[0029] The sewage lifted from the aerobic tank in the integrated device enters the water inlet tank 2 through the water inlet 1, and water begins to accumulate in the water inlet tank 2. The baffle 3 leading to the sedimentation tank 4 on the right is fixed, and the height of the rotating adjustable gate 16 leading to the return tank 5 on the left is initially at the same height as the baffle 3 leading to the sedimentation tank 4 on the right. At this time, the return ratio is 1 / 2. When the water reaches a certain water level, the water begins to overflow to both sides. The overflow on the right enters the sedimentation tank 4 through the baffle 3 and then enters the flocculation sedimentation tank through the sedimentation tank outlet 5. When the reflux ratio needs to be adjusted, the handle 18 can be shaken to control the rotation of the adjustable valve 16 to control the ratio of water in the water inlet pool 2 entering the reflux pool 5. When the sewage volume is low, the reflux ratio can be increased to ensure the flow of water in the integrated equipment. Among the three gates, large, medium and small, when the medium gate is used, the reflux ratio is 1 / 2, and the water in the reflux pool 5 flows back to the anoxic pool through the reflux pool outlet 6. In addition, based on this implementation method, more gates can be selected to increase the number of adjustable gears.

[0030] Compared with the existing technical solutions, the beneficial effect of the present application is that in the original technical solution, the nitrification liquid reflux is refluxed in the sedimentation tank by a pump. The reflux device of the present application can adjust the nitrification liquid reflux ratio as needed, and increase the reflux ratio when the rural sewage discharge volume is low. The sludge in the middle area can be used for sludge seed.

[0031] Example 3

[0032] like Figure 3 As shown, an adjustable reflux device suitable for integrated sewage treatment equipment includes a pool body, a partition 3 is arranged inside the pool body, the partition divides the inside of the pool body into different functional areas, and also includes a flow regulating mechanism, which can adjust the flow and proportion of water entering different functional areas.

[0033] Two partitions 3 are arranged inside the water pool body, and the two partitions 3 divide the water pool body into three different functional areas, namely, the water inlet pool 2, the reflow pool 5 and the sedimentation pool 4. A partition 3 is arranged between the reflow pool 5 and the sedimentation pool 4. The water inlet pool 2 is located in the middle, and the reflow pool 5 and the sedimentation pool 4 are located on both sides of the water inlet pool 2. The water inlet pool 2 is provided with a water inlet 1 at the bottom or top, and the reflow pool and the sedimentation pool are provided with a water outlet 6 at the bottom for flowing water to the corresponding process pool. The adjustable valve 26 is embedded in the partition 3 and can move up and down to control the overflow of water. The upper end of the adjustable valve 26 is fixedly connected to the transmission shaft 17, and the manual rotating handle 18 at the front end of the transmission shaft 17 is formed. The adjustable valve 26 is driven by the manual rotating handle 18 at the upper end to drive the movement of the transmission shaft 17 to control the adjustable valve 26 to move up and down.

[0034] The following describes the working principle and use method of the adjustable reflux device described in the present application. The sewage lifted from the aerobic pool in the integrated device enters the water inlet pool 2 through the water inlet 1, and water begins to accumulate in the water inlet pool 2. The partition 3 leading to the sedimentation pool 4 on the right is fixed, and the height of the adjustable gate 26 leading to the return pool 5 on the left is initially at the same height as the partition 3 leading to the sedimentation pool 4 on the right. At this time, the return ratio is 1 / 2. When the water storage reaches a certain water level, the water begins to overflow to both sides. The overflow on the right side enters the sedimentation pool 4 through the partition 3 and then enters the flocculation sedimentation pool through the sedimentation pool outlet 6. When it is necessary to adjust the return ratio, the adjustable valve 26 can be controlled to move up and down by shaking the handle 18 to control the proportion of water in the water inlet pool 2 entering the return pool 5. When the amount of sewage is low, the return ratio can be increased to ensure the flow of water in the integrated equipment. The water in the return pool 5 flows back to the anoxic pool through the return pool outlet 6.

[0035] As can be seen from the above, in the original technical solution, the nitrification liquid is refluxed in the sedimentation tank by a pump. The reflux device of the present application can adjust the nitrification liquid reflux ratio as needed, and increase the reflux ratio when the rural sewage discharge volume is low. The sludge in the middle area can be used for sludge seed.

[0036] In addition, the present application also has other beneficial effects, including that the device occupies very little space in the sewage treatment device, has a good diversion control function, controls the reflux ratio by the water inlet flow rate, ensures that the bacterial flora in the adjustable reflux device of the present application is in the best state, and compares the treatment effect of the device of the application with that of the equipment with non-adjustable reflux ratio on the existing market.

[0037] The following is the treatment effect data of the common integrated sewage equipment used in a beautiful village in the south after being used in combination with the equipment of this application. The average ammonia nitrogen removal rate in a single month using the common integrated treatment equipment is 85%, and the COD removal rate is 90%. After the existing common integrated treatment equipment is used in combination with the reflux device of this application, the comparison is made under the same conditions. After being used in combination with the reflux device of this application, the average ammonia nitrogen removal rate in a single month is 92%, and the COD removal rate is 95%, which is conducive to the adjustable reflux device of this application to achieve good ammonia nitrogen and COD removal effects.

[0038] The above-described embodiments are merely descriptions of the preferred implementation modes of the present application and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary engineering and technical personnel in the field shall fall within the scope of protection determined by the claims of the present application.

Claims

1. An adjustable reflux device suitable for sewage integrated wastewater treatment equipment, comprising a pool body, wherein a partition is arranged inside the pool body, and the partition divides the inside of the pool body into different functional areas, characterized in that: It also includes a flow regulating mechanism, which can adjust the flow and proportion of water entering different functional areas; two partitions are arranged inside the water pool body, and the two partitions divide the water pool body into three different functional areas: an inlet pool, a reflow pool and a sedimentation pool; a partition is arranged between the reflow pool and the sedimentation pool, the inlet pool is located in the middle, and the reflow pool and the sedimentation pool are located on both sides of the inlet pool; a water inlet is arranged at the bottom or top of the inlet pool, and a water outlet is arranged at the bottom of the reflow pool and the sedimentation pool for flowing water to the corresponding process pool; a partition is arranged between the reflow pool and the sedimentation pool and is located at the same height to achieve uniform water inflow on both sides and control the reflux ratio to 1 / 2; the flow regulating mechanism is provided with a flow regulating switch for the water outlet, and the reflux ratio can be adjusted; more accurate regulation of the flow ratio can be achieved through the cooperation of the electromagnetic flowmeter and the flow regulating switch Section; the flow regulating mechanism is a rotary adjustable valve, which is arranged at the upper end of the baffle between the water inlet pool and the return pool for adjusting the return volume; the rotary adjustable valve has three gears, and the water overflow is controlled by rotating the adjusting gate; the rotary adjustable valve is controlled by the manual rotating handle at the front end to switch the gate; the adjustable valve is embedded in the baffle and can move up and down to control the water overflow; the adjustable valve is controlled to move up and down by the manual rotating handle at the upper end; the overflow on the right side enters the sedimentation tank through the baffle and then enters the flocculation sedimentation tank through the outlet of the sedimentation tank. When the return ratio needs to be adjusted, the adjustable valve can be controlled to move up and down by shaking the handle to control the proportion of water in the water inlet pool entering the return pool. When the sewage volume is low, the return ratio can be increased to ensure the flow of water in the integrated equipment, and the water in the return pool flows back to the anoxic pool through the outlet of the return pool.

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