A high efficiency physicochemical tower

Abstract

The application provides a high-efficiency physical and chemical tower, which is composed of a tower body part, a water inlet part, a water outlet part and a sludge discharge part, the tower body part comprises a precipitation zone, a buffer zone, a sludge zone, an outer central cylinder and an inner central cylinder, the outer central cylinder is sleeved outside the inner central cylinder, the water inlet part is arranged in communication with the inner central cylinder, the upper end of the inner central cylinder is provided with a water outlet connected in communication with the outer central cylinder, the bottom end of the outer central cylinder is connected in communication with the buffer zone, the water inlet part is used for conveying sewage, a coagulant and a coagulant aid to the physical and chemical tower, the upper part of the precipitation zone is provided with the water outlet part for discharging water, the bottom of the sludge zone is provided with the sludge discharge part for discharging sludge, and a main control system is further arranged outside the tower body part. The application has the advantages of small occupied area, higher sewage treatment efficiency, automatic sludge discharge, saved labor and prevention of sludge anaerobic blackening, odor, sludge floating in the precipitation zone caused by untimely sludge discharge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coagulation sedimentation, and particularly relates to a high-efficiency materialization tower. BACKGROUND

[0002] Physical sedimentation of sewage is to separate suspended solids in sewage according to the difference in density between the suspended solids and water. Commonly used sedimentation tanks include horizontal flow type, radial flow type, vertical flow type and inclined plate pipe type sedimentation tanks. The vertical flow type sedimentation tank is widely used in the field of sewage treatment due to the advantages of convenient sludge discharge, no sludge scraping machinery, simple management and small land occupation. However, due to the water distribution, the diameter of the tank body is generally small. When treating a large amount of water, multiple tank bodies need to be set to meet the requirement of sewage treatment capacity. Meanwhile, more manual operation is required for sludge discharge, and the sludge discharge time is difficult to control. Long sludge discharge time leads to large sludge treatment capacity and high cost. Short sludge discharge time leads to anaerobic sludge turning and high suspended solids concentration in effluent.

[0003] Therefore, in order to overcome the above technical defects, the original basis needs to be optimized and improved to obtain a high-efficiency materialization tower which can solve the above problems. SUMMARY

[0004] The present application provides a high-efficiency materialization tower. The technical transformation of the existing vertical flow type sedimentation tank solves the problems of long sludge discharge time, large sludge treatment capacity and high cost of the existing vertical flow type sedimentation tank.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A high-efficiency materialization tower is composed of a tower body part, a water inlet part, a water outlet part and a sludge discharge part. The tower body part includes a sedimentation zone, a buffer zone, a sludge zone, an outer center cylinder and an inner center cylinder. The sedimentation zone, the buffer zone and the sludge zone are arranged in sequence from top to bottom. The outer center cylinder and the inner center cylinder are vertically installed in the inner cavity of the tower body part. The outer center cylinder is sleeved outside the inner center cylinder. The water inlet part is in communication with the inner center cylinder. The inner center cylinder is provided with a water outlet at the upper end, which is in communication with the outer center cylinder. The bottom end of the outer center cylinder is in communication with the buffer zone. The water inlet part is used to deliver sewage, coagulant and coagulant aid to the materialization tower. The sedimentation zone is provided with a water outlet part at the upper part for water discharge. The sludge zone is provided with a sludge discharge part at the bottom for sludge discharge. The tower body part is further provided with a main control system outside. The main control system is in electrical connection with the water inlet part, the water outlet part and the sludge discharge part.

[0007] Preferably, the water inlet part comprises a water inlet main pipe, a first dosing pipeline, a water inlet pump and a second dosing pipeline, the water inlet main pipe is arranged in communication with the inner central cylinder, and the first dosing pipeline is connected to the water inlet main pipe, the water inlet pump is arranged at the rear end of the first dosing pipeline, and the water inlet pump is used for mixing sewage and reagents and conveying to the inner central cylinder, and the second dosing pipeline is arranged on the top end of the tower body part, and the output end of the second dosing pipeline is arranged opposite to the water outlet at the top of the inner central cylinder.

[0008] Preferably, the first dosing pipeline is used for adding PAC reagents, and the second dosing pipeline is used for adding PAM reagents.

[0009] Preferably, a sludge flushing device is arranged at the upper end of the tower body part, the sludge flushing device comprises a tap water pipeline, an electric timing valve and a spiral nozzle, the spiral nozzles are arranged in an annular distribution on the upper parts of the outer central cylinder and the inner central cylinder, the tap water pipeline is arranged in communication with the spiral nozzles on the top of the tower body part, the electric timing valve is arranged on the tap water pipeline, and the electric timing valve is arranged in electrical connection with the main control system.

[0010] Preferably, the water outlet part comprises a water outlet weir, a water collecting channel and a water outlet pipe, the water outlet weir and the water collecting channel are arranged at the upper end of the precipitation area of the tower body part, the water collecting channel is arranged at the outer side of the water outlet weir, and the bottom surface of the water collecting channel is communicated with the water outlet pipe for water drainage.

[0011] Preferably, a horizontal pipe is arranged at the end of the water outlet pipe, an exhaust pipe is vertically arranged upwards on the horizontal pipe, the top of the exhaust pipe is arranged higher than the water outlet pipe, and an automatic exhaust device is arranged at the top of the exhaust pipe.

[0012] Preferably, an inclined pipe is connected between the water outlet pipe and the exhaust pipe, and the inclined pipe is arranged at an angle of 45° with the water outlet pipe or the exhaust pipe.

[0013] Preferably, an ultrasonic sludge level meter is arranged in the tower body part, and the ultrasonic sludge level meter is arranged in electrical connection with the main control system.

[0014] Preferably, the sludge discharge part comprises a collecting sludge branch pipe, a sludge discharge main pipe and a sludge discharge electromagnetic valve, a plurality of collecting sludge branch pipes are connected to the bottom of the sludge area, the collecting sludge branch pipes are arranged in communication with the sludge discharge main pipe, the sludge discharge electromagnetic valve is arranged on the sludge discharge main pipe, and the sludge discharge electromagnetic valve is arranged in electrical connection with the main control system.

[0015] Preferably, a sludge discharge butterfly valve is further arranged on the sludge discharge main pipe.

[0016] The present application has the following beneficial effects:

[0017] 1. This invention features a vertically arranged physicochemical tower. The diameter of the high-efficiency physicochemical tower is larger than that of a traditional vertical flow sedimentation tank, resulting in a larger water treatment capacity. For the same water treatment capacity, the high-efficiency physicochemical tower requires a smaller floor space.

[0018] 2. The reagents in this application are mixed by water pump or in pipeline, which eliminates the need for additional hybrid power supply, saves energy, and avoids mechanical failure.

[0019] 3. This application adopts an inner and outer central cylinder structure, which provides more uniform water distribution compared to the reflector structure and can effectively prevent uneven water distribution due to short flow.

[0020] 4. The application provides an automatic flushing device for floating sludge above the central cylinder, which can effectively prevent the floating sludge from escaping and contaminating the supernatant in the sedimentation zone, while also saving manual flushing.

[0021] 5. An automatic venting device is installed at the water outlet to effectively prevent air blockage or air lock in the pipe and avoid sewage spillage when gas in the pipe flows back to the water inlet.

[0022] 6. This application includes an automatic sludge discharge device at the bottom of the physicochemical tower. An ultrasonic sludge level gauge accurately detects the sludge level. Based on this information, the main control system automatically discharges sludge, saving labor and preventing anaerobic blackening, foul odor, and sludge floating in the sedimentation zone due to untimely sludge discharge. Alternatively, the automatic sludge discharge can be replaced with manual sludge discharge, depending on the specific circumstances. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the high-efficiency physicochemical tower structure of the present invention;

[0024] Reference numerals in the attached diagrams: 1. Tower body, 11. Sedimentation zone, 12. Buffer zone, 13. Sludge zone, 14. Outer central cylinder, 15. Inner central cylinder, 2. Water inlet section, 21. Main water inlet pipe, 22. First dosing pipeline, 23. Water inlet pump, 24. Second dosing pipeline, 25. Tap water pipeline, 26. Electric timer valve, 27. Spiral nozzle, 3. Water outlet section, 31. Water outlet weir, 32. Water collection channel, 33. Water outlet pipe, 34. Vent pipe, 35. Automatic venting device, 4. Sludge discharge section, 41. Ultrasonic sludge level gauge, 42. Sludge collection and discharge branch pipe, 43. Main sludge discharge pipe, 44. Sludge discharge solenoid valve, 45. Sludge discharge butterfly valve. Detailed Implementation

[0025] The specific content of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0026] Please see Figure 1As shown, this invention provides a high-efficiency physicochemical tower, comprising a tower body 1, an inlet section 2, an outlet section 3, and a sludge discharge section 4. The tower body 1 includes a sedimentation zone 11, a buffer zone 12, a sludge zone 13, an outer central cylinder 14, and an inner central cylinder 15. The sedimentation zone 11, buffer zone 12, and sludge zone 13 are arranged sequentially from top to bottom. The outer central cylinder 14 and inner central cylinder 15 are vertically installed within the inner cavity of the tower body 1, with the outer central cylinder 14 fitted over the inner central cylinder 15. The inlet section 2 and the inner central cylinder 15 are connected... The inner central cylinder 15 has an outlet at its upper end that connects to the outer central cylinder 14, and the bottom end of the outer central cylinder 14 connects to the buffer zone 12. The inlet section 2 is used to transport sewage, coagulant, and coagulant aid to the physicochemical tower. The sedimentation zone 11 has an outlet section 3 for drainage at its upper part, and the sludge zone 13 has a sludge discharge section 4 for sludge discharge at its bottom. The tower body 1 also has a main control system installed outside it. The main control system is electrically connected to the inlet section 2, the outlet section 3, and the sludge discharge section 4.

[0027] The effective hydraulic retention time of the sedimentation zone 11 is set to 1.5-2.5h.

[0028] The height of the buffer zone 12 is set to 0.3-0.5m.

[0029] The angle between the inclined wall of the sludge zone 13 and the horizontal plane should be 55-60°.

[0030] The flow velocity in the central cylinder should preferably be less than 0.03 m / s.

[0031] Furthermore, the water inlet section 2 includes a main water inlet pipe 21, a first dosing pipeline 22, a water inlet pump 23, and a second dosing pipeline 24. The main water inlet pipe 21 is connected to the inner central cylinder 15, and the first dosing pipeline 22 is connected to the main water inlet pipe 21. The water inlet pump 23 is installed at the rear end of the first dosing pipeline 22. The water inlet pump 23 is used to mix sewage and chemicals and transport them to the inner central cylinder 15. The top of the tower body section 1 is also equipped with a second dosing pipeline 24, and the output end of the second dosing pipeline 24 is set directly opposite the water outlet at the top of the inner central cylinder 15.

[0032] PAC agent is added to the inlet main pipe 21 before the inlet pump 23. Under the action of the inlet pump 23, the sewage and agent are fully mixed in the pipe. The mixed sewage enters the inner central cylinder 15 through the pump outlet pipe 33. PAM agent is added to the top of the central cylinder. The sewage in the inner central cylinder 15 overflows into the outer central cylinder 14. Under the action of PAM agent, the sewage forms large flocs. The muddy water mixture enters the buffer zone 12.

[0033] Furthermore, the first dosing line 22 is used to add PAC agent, and the second dosing line 24 is used to add PAM agent.

[0034] Furthermore, a sludge flushing device is installed at the upper end of the tower body 1. This device includes a water supply pipeline 25, an electric timer valve 26, and spiral nozzles 27. The outer central cylinder 14 and inner central cylinder 15 are equipped with spiral nozzles 27 arranged in a ring. A water supply pipeline 25 is mounted on the top of the tower body 1, connecting to the spiral nozzles 27. An electric timer valve 26 is installed on the water supply pipeline 25 and is electrically connected to the main control system. Under the control of the electric timer valve 26, clean water is periodically sprayed onto the spiral nozzles 27 at the top of the central cylinder, flushing the floating sludge to the bottom of the central cylinder. The sludge-water mixture enters the buffer zone 12. Under gravity, the sludge enters the sludge zone 13, and the supernatant settles in the sedimentation zone 11.

[0035] Furthermore, the water outlet section 3 includes a water outlet weir 31, a water collection channel 32, and a water outlet pipe 33. The water outlet weir 31 and the water collection channel 32 are installed along the upper edge of the sedimentation zone 11 of the tower body section 1. The water collection channel 32 is located outside the water outlet weir 31, and its bottom surface is connected to the water outlet pipe 33 for drainage. The supernatant from the sedimentation zone 11 overflows through the water outlet weir 31 into the water collection channel 32. The water collection channel 32 is located around the top of the tower body, and it collects all the supernatant at the inlet of the water outlet pipe 33.

[0036] Furthermore, a horizontal pipe is provided at the end of the water outlet pipe 33, and an exhaust pipe 34 is vertically installed on the horizontal pipe. The top of the exhaust pipe 34 is set higher than the water outlet pipe 33, and an automatic exhaust device 35 is installed on the top of the exhaust pipe 34. The automatic exhaust device 35 discharges the air in the drain pipe, stabilizes the air pressure in the drain pipe, and prevents air from forming air resistance or airlock in the pipe.

[0037] Furthermore, an inclined pipe is connected between the water outlet pipe 33 and the exhaust pipe 34, and the inclined pipe forms a 45° angle with the water outlet pipe 33 or the exhaust pipe 34.

[0038] Furthermore, an ultrasonic mud level gauge 41 is installed inside the tower body section 1, and the ultrasonic mud level gauge 41 is electrically connected to the main control system.

[0039] Furthermore, the sludge discharge section 4 includes sludge collection branch pipes 42, a sludge discharge main pipe 43, and a sludge discharge solenoid valve 44. Several sludge collection branch pipes 42 are connected to the bottom of the sludge zone 13. The sludge collection branch pipes 42 are connected to the sludge discharge main pipe 43. A sludge discharge solenoid valve 44 is installed on the sludge discharge main pipe 43 and is electrically connected to the main control system. Based on the comparison between the collected sludge height information and the set height, the sludge discharge solenoid valve 44 automatically opens to discharge sludge when the sludge level exceeds the set upper limit, and automatically closes to stop sludge discharge when the sludge level is below the lower limit.

[0040] Furthermore, a mud discharge butterfly valve 45 is also installed on the mud discharge main pipe 43. It can be switched to manual mud discharge butterfly valve 45 for mud discharge according to actual usage conditions.

[0041] Influent Process: Wastewater flows through the influent main pipe 21 and mixes thoroughly with the PAC dosing agent in the PAC dosing pipeline under the centrifugal rotation of the influent pump 23. The mixed wastewater then enters the inner central cylinder 15 through the pump outlet pipe 33. PAM dosing agent is added at the top of the central cylinder, while wastewater overflows from the inner central cylinder 15 into the outer central cylinder 14. The wastewater and agent undergo a coagulation reaction, forming large flocs. The sludge-water mixture enters the buffer zone 12. Under gravity, the sludge enters the sludge zone 13, and the supernatant settles in the sedimentation zone 11. To prevent floating sludge from forming at the top of the central cylinder, a floating sludge flushing device is installed at the top. Under the control of the electric timer valve 26, clean water is periodically sprayed onto the spiral nozzle 27 at the top of the central cylinder, flushing the floating sludge to the bottom of the central cylinder.

[0042] Water discharge process: The supernatant from sedimentation zone 11 overflows through the effluent weir 31 into the collection channel 32, which is located around the top of the tower, collecting all the supernatant to the outlet pipe 33. The horizontal section of the outlet pipe 33 is connected to the vent pipe 34, and the vertical section of the outlet pipe 33 is parallel to the vent pipe 34. The vertical section of the outlet pipe 33 and the vent pipe 34 are connected by a 45° inclined pipe. The vent pipe 34 is higher than the outlet pipe 33, and an automatic venting device 35 is installed at the top of the vent pipe 34 to discharge air from the drain pipe, stabilize the air pressure inside the drain pipe, and prevent air from forming airlocks or blockages in the pipe.

[0043] Sludge removal process: An ultrasonic sludge level gauge 41 is installed at the top of the high-efficiency physicochemical tower to collect real-time information on the sludge height at the bottom and transmit the information to the computer program. The collected sludge height information is compared with the set height. When the sludge level exceeds the set upper limit, the sludge discharge solenoid valve 44 automatically opens to discharge sludge; when the sludge level falls below the lower limit, the sludge discharge solenoid valve 44 automatically closes to stop sludge discharge. Multiple sludge collection branch pipes 42 are installed at the bottom to collect and gather the sludge at the bottom onto the main sludge discharge pipe 43. The manual sludge discharge butterfly valve 45 can be switched to discharge sludge as needed.

[0044] This invention has the following characteristics:

[0045] 1. This invention features a vertically arranged physicochemical tower. The diameter of the high-efficiency physicochemical tower is larger than that of a traditional vertical flow sedimentation tank, resulting in a larger water treatment capacity. For the same water treatment capacity, the high-efficiency physicochemical tower requires a smaller floor space.

[0046] 2. The reagents in this application are mixed by water pump or in pipeline, which eliminates the need for additional hybrid power supply, saves energy, and avoids mechanical failure.

[0047] 3. This application adopts an inner and outer central cylinder structure, which provides more uniform water distribution compared to the reflector structure and can effectively prevent uneven water distribution due to short flow.

[0048] 4. The application provides an automatic flushing device for floating sludge above the central cylinder, which can effectively prevent the floating sludge from escaping and contaminating the supernatant in the sedimentation zone, while also saving manual flushing.

[0049] 5. An automatic venting device is installed at the water outlet to effectively prevent air blockage or air lock in the pipe and avoid sewage spillage when gas in the pipe flows back to the water inlet.

[0050] 6. This application includes an automatic sludge discharge device at the bottom of the physicochemical tower. An ultrasonic sludge level gauge accurately detects the sludge level. Based on this information, the main control system automatically discharges sludge, saving labor and preventing anaerobic blackening, foul odor, and sludge floating in the sedimentation zone due to untimely sludge discharge. Alternatively, the automatic sludge discharge can be replaced with manual sludge discharge, depending on the specific circumstances.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

[0052] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0053] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A high-efficiency physicochemical tower, characterized in that, The tower consists of a tower body, an inlet section, an outlet section, and a sludge discharge section. The tower body includes a sedimentation zone, a buffer zone, a sludge zone, an outer central cylinder, and an inner central cylinder, arranged sequentially from top to bottom. The outer and inner central cylinders are vertically installed inside the tower body, with the outer central cylinder fitted over the inner central cylinder. The inlet section is connected to the inner central cylinder, and the upper end of the inner central cylinder has an outlet connected to the outer central cylinder. The bottom end of the outer central cylinder is connected to the buffer zone. The inlet section is used to deliver wastewater, coagulant, and coagulant aid to the physicochemical tower. An outlet section for drainage is installed at the upper part of the sedimentation zone, and a sludge discharge section for sludge discharge is installed at the bottom of the sludge zone. A main control system is also installed outside the tower body, and the main control system is electrically connected to the inlet, outlet, and sludge discharge sections. The water inlet section includes a main water inlet pipe, a first dosing pipeline, a water inlet pump, and a second dosing pipeline. The main water inlet pipe is connected to the inner central cylinder, and the first dosing pipeline is connected to the main water inlet pipe. The water inlet pump is installed at the rear end of the first dosing pipeline. The water inlet pump is used to mix sewage and chemicals and transport them to the inner central cylinder. The top of the tower body is also equipped with a second dosing pipeline, and the output end of the second dosing pipeline is set directly opposite the water outlet at the top of the inner central cylinder. A sludge flushing device is installed at the upper end of the tower body. The sludge flushing device includes a water supply pipeline, an electric timer valve, and a spiral nozzle. Spiral nozzles distributed in a ring are installed on the upper part of the outer and inner central cylinders. A water supply pipeline is mounted on the top of the tower body and connected to the spiral nozzles. An electric timer valve is installed on the water supply pipeline and is electrically connected to the main control system. The first dosing line is used to add PAC reagent, and the second dosing line is used to add PAM reagent; The water outlet section includes a water outlet weir, a water collection channel, and a water outlet pipe. The upper edge of the sedimentation zone of the tower body is equipped with a water outlet weir and a water collection channel. The water collection channel is located outside the water outlet weir, and the bottom surface of the water collection channel is connected to a water outlet pipe for drainage. The end of the water outlet pipe is provided with a horizontal pipe, and an exhaust pipe is installed vertically upward on the horizontal pipe. The top of the exhaust pipe is set higher than the water outlet pipe, and an automatic exhaust device is installed on the top of the exhaust pipe. An inclined pipe is connected between the water outlet pipe and the exhaust pipe, and the inclined pipe forms a 45° angle with the water outlet pipe or the exhaust pipe. The PAM agent in the PAM dosing pipeline is added at the top of the central cylinder. At the same time, the sewage in the inner central cylinder overflows into the outer central cylinder. The sewage and the agent undergo a coagulation reaction to form large flocs. The mud-water mixture enters the buffer zone.

2. The high-efficiency physicochemical tower according to claim 1, characterized in that, An ultrasonic mud level gauge is installed inside the tower body, and the ultrasonic mud level gauge is electrically connected to the main control system.

3. The high-efficiency physicochemical tower according to claim 1, characterized in that, The sludge discharge section includes sludge collection branch pipes, sludge discharge main pipes, and sludge discharge solenoid valves. Several sludge collection branch pipes are connected to the bottom of the sludge zone. The sludge collection branch pipes are connected to the sludge discharge main pipes. A sludge discharge solenoid valve is installed on the sludge discharge main pipe and is electrically connected to the main control system.

4. The high-efficiency physicochemical tower according to claim 3, characterized in that, The sludge discharge main pipe is also equipped with a sludge discharge butterfly valve.

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