Energy-saving and efficient sewage treatment equipment

Abstract

The utility model provides an energy-saving and efficient sewage treatment equipment, including a cylinder, a partition plate and a guide plate are arranged in the cylinder, and the guide plate is arranged on the periphery of the partition plate; a gap is arranged between the partition plate and the guide plate; a sludge discharge pipe is arranged in the sedimentation area, and a sludge return hole is arranged in the partition plate; a first three-phase separator and a second three-phase separator are arranged in the cylinder; an aeration system is arranged above the first three-phase separator, and the water outlet area is connected to the outside of the cylinder through the water outlet system; a gas-liquid separation component is arranged on the top of the cylinder, a diverter is arranged in the anoxic area, and the gas-liquid separation component and the diverter are connected through a return pipe; an emptying pipe and a water inlet pipe are arranged at the bottom of the cylinder, and the water inlet pipe is connected to a water distributor arranged below the diverter; the first three-phase separator and the second three-way separator are connected to the gas-liquid separation component. The utility model reduces the mixer, the sludge return pump, the mixed liquid return pump, and the sludge external discharge pump, greatly simplifies the composition of the integrated equipment, and reduces the energy consumption of the equipment.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and in particular relates to energy-saving and high-efficiency sewage treatment equipment. Background Art

[0002] At present, there are various processes applied to small-scale integrated sewage treatment equipment, including A2O, MBR, contact oxidation process, etc. However, most of the process equipment is numerous and needs to be equipped with mixed liquid return pump, sludge return pump, mixer, etc., which leads to high power consumption of the equipment, high cost of treating one ton of water, and excessive burden on users, thus causing the equipment to be idle; or due to lack of technical personnel, once the equipment has problems, it will face the dilemma of equipment paralysis. Utility Model Content

[0003] In view of this, the utility model aims to propose an energy-saving and efficient sewage treatment equipment, which adopts hydraulic action to stir the anoxic zone, and returns the sludge at the bottom of the sedimentation tank by the suction force generated by the vortex formed by the incoming water. After the aerobic tank is aerated, the gas-liquid-solid mixture formed passes through the collecting pipe to realize the mixed liquid return, and the sludge is discharged through the static pressure sludge discharge pipe. Compared with the traditional process, the mixer, sludge return pump, mixed liquid return pump, and sludge external discharge pump are reduced, which greatly simplifies the composition of the integrated equipment and reduces the energy consumption of the equipment. It is an energy-saving product that can be vigorously promoted.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An energy-saving and efficient sewage treatment equipment comprises a cylinder, wherein a partition plate and a guide plate are arranged in the cylinder, wherein the partition plate divides the interior of the cylinder into a first zone and a second zone, and the guide plate is arranged on the periphery of the partition plate; and a gap is arranged between the partition plate and the guide plate; a sedimentation zone is formed between the partition plate and the inner wall of the cylinder; and a mud discharge pipe is arranged in the sedimentation zone.

[0006] A number of evenly distributed sludge return holes are provided at the bottom of the partition plate;

[0007] The first zone is provided with a first three-phase separator and a second three-phase separator from bottom to top; an anoxic zone is formed between the first three-phase separator and the bottom of the cylinder, an aerobic zone is formed between the first three-phase separator and the second three-phase separator, and a water outlet zone is formed between the second three-phase separator and the guide plate;

[0008] An aeration system is provided above the first three-phase separator, and the aeration system is connected to the outside of the cylinder through an aeration pipe;

[0009] The water outlet area is connected to the outside of the cylinder through the water outlet system;

[0010] A gas-liquid separation component is provided on the top of the cylinder, a flow divider is provided in the anoxic zone, and the gas-liquid separation component and the flow divider are connected via a reflux pipe;

[0011] The bottom of the cylinder is provided with an emptying pipe and a water inlet pipe, and the water inlet pipe is connected to a water distributor arranged below the diverter;

[0012] The first three-phase separator is connected to the gas-liquid separation component through the first gas collecting pipe, and the second three-way separator is connected to the gas-liquid separation component through the second gas collecting pipe.

[0013] Furthermore, the water distributor is disc-shaped and is provided with 4 injection pipes. The axial direction of the injection pipe is 30°-60° with the tangent direction of the water distributor, and the axial direction of the injection pipe is 30°-60° downward with the disc surface, and the incoming water forms a vortex through the injection pipe.

[0014] Furthermore, the water outlet system includes a water outlet weir, a water collecting tank, a water outlet baffle, a water collecting weir and a water outlet pipe;

[0015] The outlet weir is arranged on the top of the partition plate, and the outlet weir is a triangular outlet weir. After the water flows out through the outlet weir, it is guided by the guide plate and enters the middle part of the sedimentation tank.

[0016] The water outlet pipe is arranged on the cylinder body, a water collecting trough is arranged between the water collecting weir and the water outlet pipe, and a water outlet baffle is also arranged on the water collecting trough.

[0017] Furthermore, the top of the guide plate is higher than the top of the water outlet baffle.

[0018] Furthermore, the top port of the mud discharge pipe is higher than the water outlet baffle.

[0019] Compared with the prior art, the energy-saving and efficient sewage treatment equipment described in the utility model has the following advantages:

[0020] (1) The utility model is an energy-saving and efficient sewage treatment equipment, which uses hydraulic action to stir the anoxic zone, and uses the suction force generated by the vortex formed by the incoming water to return the sludge at the bottom of the sedimentation tank. After the aerobic tank is aerated, the gas-liquid-solid mixture formed passes through the collection pipe to realize the mixed liquid return, and the sludge is discharged through the static pressure sludge discharge pipe. Compared with the traditional process, the mixer, sludge return pump, mixed liquid return pump, and sludge external discharge pump are reduced, which greatly simplifies the composition of the integrated equipment and reduces the energy consumption of the equipment.

[0021] (2) The utility model is an energy-saving and efficient sewage treatment equipment, which only needs aeration, and does not need to install a mixed liquid return pump, a sludge return pump, a sludge discharge pump and a mixer. It has the advantages of low energy consumption and significant energy saving effect. The treated water is circulated multiple times in the equipment, which can adapt to the situation of large changes in water quality and water quantity, and can achieve good treatment effect. It has the characteristics of novel design, simple and compact structure, good treatment effect and small investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a cross-sectional view of an energy-saving and efficient sewage treatment equipment according to an embodiment of the utility model;

[0024] Figure 2 This is a top view of an energy-saving and efficient sewage treatment equipment described in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Anoxic zone; 2. Aerobic zone; 3. Outlet zone; 4. Sedimentation zone; 5. Gas-liquid separation zone; 6. Drain pipe; 7. Skimmer port; 1-1. Water inlet pipe; 1-2. Water distributor; 1-3. Diverter; 1-4. First three-phase separator; 2-1. Aeration pipe; 2-2. Aeration system; 2-3. Second three-phase separator; 2-4. First gas collecting pipe; 3-1. Outlet weir; 3-2. Water collecting trough; 3-3. Outlet baffle; 3-4. Water collecting weir; 3-5. Outlet pipe; 3-6. Second gas collecting pipe; 4-1. Mud discharge pipe; 4-2. Guide plate; 4-3. Mud discharge pipe; 4-4. Mud discharge valve; 4-5. Sludge return hole; 4-6. Partition plate; 5-1. Return pipe; 5-2. Gas outlet; 6-1. Drain valve. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] An energy-saving and efficient sewage treatment equipment, such as Figure 1 Figure 2 As shown, it includes a cylinder, a partition plate 4-6 and a guide plate 4-2 are arranged in the cylinder, the partition plate 4-6 divides the inside of the cylinder into a first area and a second area, the guide plate 4-2 is arranged on the periphery of the partition plate 4-6; and a gap is provided between the partition plate 4-6 and the guide plate 4-2; a sedimentation area 4 is formed between the partition plate 4-6 and the inner wall of the cylinder; a mud discharge pipe 4-1 is provided in the sedimentation area 4,

[0032] A plurality of evenly distributed sludge return holes 4-5 are provided at the bottom of the partition plate 4-6;

[0033] The first zone is provided with a first three-phase separator 1-4 and a second three-phase separator 2-3 from bottom to top; an anoxic zone 1 is formed between the first three-phase separator 1-4 and the bottom of the cylinder, an aerobic zone 2 is formed between the first three-phase separator 1-4 and the second three-phase separator 2-3, and a water outlet zone 3 is formed between the second three-phase separator 2-3 and the guide plate 4-2;

[0034] An aeration system 2-2 is provided above the first three-phase separator 1-4, and the aeration system 2-2 is connected to the outside of the cylinder through an aeration pipe 2-1;

[0035] The water outlet area 3 is connected to the outside of the cylinder through the water outlet system;

[0036] A gas-liquid separation assembly is provided on the top of the cylinder, a flow divider 1-3 is provided in the anoxic zone 1, and the gas-liquid separation assembly and the flow divider 1-3 are connected via a reflux pipe 5-1; a gas discharge port is provided on the gas-liquid separation assembly;

[0037] The bottom of the cylinder is provided with an exhaust pipe 6 and a water inlet pipe 1-1, and the water inlet pipe 1-1 is connected to a water distributor 1-2 arranged below the diverter 1-3; an exhaust valve 6-1 is provided on the exhaust pipe 6;

[0038] The first three-phase separator 1-4 is connected to the gas-liquid separation component through the first gas collecting pipe 2-4, and the second three-way separator is connected to the gas-liquid separation component through the second gas collecting pipe 3-6.

[0039] A slag skimming port 7 is provided on the top of the cylinder.

[0040] Preferably, the water distributor 1-2 is disc-shaped and is provided with 4 injection pipes. The axial direction of the injection pipe is 45° to the tangent direction of the water distributor 1-2, and the axial direction of the injection pipe is 45° downward to the disc surface. The incoming water forms a vortex through the injection pipe, which has a stirring effect on the anoxic zone 1.

[0041] Preferably, the water outlet system includes a water outlet weir 3-1, a water collecting tank 3-2, a water outlet baffle 3-3, a water collecting weir 3-4 and a water outlet pipe 3-5;

[0042] The outlet weir 3-1 is arranged on the top of the partition plate 4-6. The outlet weir 3-1 is a triangular outlet weir 3-1. After the water flows out through the outlet weir 3-1, it is guided by the guide plate 4-2 and enters the middle of the sedimentation tank.

[0043] The water outlet pipe 3-5 is arranged on the cylinder body, a water collecting trough 3-2 is arranged between the water collecting weir 3-4 and the water outlet pipe 3-5, and a water outlet baffle 3-3 is also arranged on the water collecting trough 3-2.

[0044] Preferably, the top of the guide plate 4-2 is higher than the top of the water outlet baffle 3-3.

[0045] Preferably, the top port of the mud discharge pipe 4-1 is higher than the water outlet baffle 3-3; a mud discharge pipe 4-3 is provided in the middle and upper part of the mud discharge pipe 4-1, and a mud discharge valve 4-4 is provided on the mud discharge pipe 4-3.

[0046] Working principle: sewage enters the water distributor 1-2 through the water inlet pipe 1-1, and passes through the injection pipe to make the water vortex, so as to stir and mix the water in the anoxic zone 1.

[0047] The gas-liquid-solid mixture in the anoxic pool 1 passes through the first three-phase separator 1-4 and enters the gas-liquid separation zone 5 through the first gas collecting pipe 2-4. The gas is discharged from the equipment through the outlet 5-2.

[0048] The liquid-solid mixture flows back to the anoxic zone 1 through the reflux pipe 5-1 and the diverter 1-3. After the mud-water mixture fully reacts in the anoxic zone 1, it passes through the first three-phase separator 1-4 and enters the aerobic zone 2.

[0049] The air enters the aeration system 2-2 through the aeration pipe 2-1. After the gas-liquid-solid mixture passes through the second three-phase separator 2-3, the rising force generated by the air refluxes the mud-water mixture. After the reflux liquid passes through the second gas collection pipe 3-6, it enters the gas-liquid separation area 5. The gas is discharged from the equipment through the gas outlet 5-2.

[0050] The mixed liquid flows back to the anoxic zone 1 through the reflux pipe 5-1, and the reflux water is fully mixed with the raw water through the diverter 1-3, and rotates and rises in the anoxic tank, fully mixed with the raw water, and plays a stirring role.

[0051] The mixed liquid flows downward through the outlet weir 3-1 in the outlet area 3 and the guide plate 4-2 into the sedimentation area 4. Due to the sudden expansion of the water flow section, the flow rate of the mixed liquid drops sharply, and the activated sludge in the mixed liquid has sufficient time to settle, thus ensuring the sedimentation effect.

[0052] After sedimentation, the clean water enters the water collecting tank 3-2 after passing through the water collecting weir 3-4, and finally is discharged from the equipment through the water outlet pipe 3-5. A small amount of scum is intercepted by the scum baffle 3-3 to ensure the water quality.

[0053] The sludge in the sedimentation zone 4 can be returned through the sludge return holes 4-5 under the action of the cyclonic suction of the water flow in the anoxic zone.

[0054] The equipment in this application does not require power consumption for stirring, mixed liquid return and sludge return, and has reliable operation and good effluent water quality. It complies with the national energy-saving and consumption-reducing policy and is an energy-saving sewage treatment equipment worthy of promotion.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving and efficient sewage treatment equipment, characterized by: The invention comprises a cylinder, wherein a partition plate and a guide plate are arranged in the cylinder, wherein the partition plate divides the interior of the cylinder into a first area and a second area, and the guide plate is arranged on the periphery of the partition plate; and a gap is arranged between the partition plate and the guide plate; a sedimentation area is formed between the partition plate and the inner wall of the cylinder; and a mud discharge pipe is arranged in the sedimentation area. A number of evenly distributed sludge return holes are provided at the bottom of the partition plate; The first zone is provided with a first three-phase separator and a second three-phase separator from bottom to top; an anoxic zone is formed between the first three-phase separator and the bottom of the cylinder, an aerobic zone is formed between the first three-phase separator and the second three-phase separator, and a water outlet zone is formed between the second three-phase separator and the guide plate; An aeration system is provided above the first three-phase separator, and the aeration system is connected to the outside of the cylinder through an aeration pipe; The water outlet area is connected to the outside of the cylinder through the water outlet system; A gas-liquid separation component is provided on the top of the cylinder, a flow divider is provided in the anoxic zone, and the gas-liquid separation component and the flow divider are connected via a reflux pipe; The bottom of the cylinder is provided with an emptying pipe and a water inlet pipe, and the water inlet pipe is connected to a water distributor arranged below the diverter; The first three-phase separator is connected to the gas-liquid separation component through the first gas collecting pipe, and the second three-way separator is connected to the gas-liquid separation component through the second gas collecting pipe.

2. The energy-saving and high-efficiency sewage treatment equipment according to claim 1 is characterized in that: The water distributor is disc-shaped and is provided with 4 injection pipes. The axial direction of the injection pipe is 30°-60° with the tangent direction of the water distributor, and the axial direction of the injection pipe is 30°-60° with the disc surface. The incoming water forms a vortex through the injection pipe.

3. The energy-saving and high-efficiency sewage treatment equipment according to claim 1 is characterized in that: The water outlet system comprises a water outlet weir, a water collecting trough, a water outlet baffle, a water collecting weir and a water outlet pipe; The outlet weir is arranged on the top of the partition plate, and the outlet weir is a triangular outlet weir. After the water flows out through the outlet weir, it is guided by the guide plate and enters the middle part of the sedimentation tank. The water outlet pipe is arranged on the cylinder body, a water collecting trough is arranged between the water collecting weir and the water outlet pipe, and a water outlet baffle is also arranged on the water collecting trough.

4. The energy-saving and high-efficiency sewage treatment equipment according to claim 3 is characterized by: The top of the guide plate is higher than the top of the water outlet baffle.

5. The energy-saving and high-efficiency sewage treatment equipment according to claim 3 is characterized by: The top port of the mud discharge pipe is higher than the water outlet baffle.

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