Tubular ultrasonic coagulation inclined tube sedimentation tank

Abstract

The utility model relates to a tubular ultrasonic coagulation inclined tube sedimentation tank, which belongs to the field of sewage treatment equipment and comprises a lifting pump, an ultrasonic generation component and an inclined tube sedimentation tank. The ultrasonic generation assembly comprises a frequency-adjustable ultrasonic generator, a tubular ultrasonic coagulation reactor, an ultrasonic transducer, an ultrasonic amplitude-change pole and an ultrasonic emission head; the ultrasonic emission head is connected with the tubular ultrasonic coagulation reactor, and the frequency-adjustable ultrasonic generator is connected with the ultrasonic transducer; the ultrasonic amplitude-change pole is connected between the ultrasonic transducer and the ultrasonic emission head; an outlet of the lifting pump is communicated with a water inlet of the tubular ultrasonic coagulation reactor; a water outlet of the tubular ultrasonic coagulation reactor is communicated to the inclined tube sedimentation tank through a pipeline; the device is simple in structure, high in reaction speed, small in size, capable of being directly installed on a pipeline for use, adjustable in reaction strength and long in service life. The solid-liquid separation efficiency of the inclined tube sedimentation tank can be improved, and the effect of removing SS, TP, COD, algae, turbidity and the like is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment equipment, and specifically relates to a tubular ultrasonic coagulation inclined tube sedimentation tank. Background Art

[0002] Since sewage contains a large amount of SS and insoluble particles, the load of subsequent physical and chemical treatment and biochemical treatment increases, the treatment efficiency decreases, and the treatment difficulty and operation and maintenance costs increase. Therefore, it is of great significance to carry out sewage pretreatment to remove SS, colloids and insoluble particles in sewage in the field of sewage treatment. These substances are generally removed by flotation, sedimentation, filtration, adsorption and other methods, but they are limited by the particle size, viscosity, density, electrical properties, material properties and other properties of the particles in the sewage, and the removal efficiency is low, the removal effect is poor, and the solid-liquid separation performance is poor, which greatly increases the treatment cost and construction cost.

[0003] Coagulation sedimentation is a method that can effectively remove SS, colloids and insoluble particles in sewage. This method mainly uses inclined tube sedimentation. Before the wastewater enters the inclined tube sedimentation tank, flocculants (PAC) and coagulants (PAM) are added to enhance the efficiency of inclined tube sedimentation. By setting up a coagulation reaction tank in front of the inclined tube sedimentation tank, the added flocculants are evenly mixed with water, and the alum flowers produced will rapidly grow in the reaction tank. The alum flowers continue to contact, collide, adsorb and condense to a particle size of 0.6-1.0 mm, and enter the sedimentation tank for gravity sedimentation to achieve solid-liquid separation. At present, there are two main types of coagulation reaction tanks: mechanical coagulation reaction tanks and hydraulic coagulation reaction tanks. Although the former is easy to adjust and control, it has a complex structure. Although the latter has a simple structure, it is not easy to adjust and control. Utility Model Content

[0004] In order to overcome the problems existing in the background technology, the utility model provides a tubular ultrasonic coagulation inclined tube sedimentation tank, which has a simple structure, fast reaction speed, small volume, can be directly installed on the pipeline for use, and has adjustable reaction intensity and long service life. It can not only improve the solid-liquid separation efficiency of the inclined tube sedimentation tank, but also has the function of removing SS, TP, COD, algae, turbidity, etc.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] The tubular ultrasonic coagulation inclined tube sedimentation tank comprises a lifting pump, an ultrasonic generating assembly and an inclined tube sedimentation tank; the ultrasonic generating assembly comprises a frequency-adjustable ultrasonic generator, a tubular ultrasonic coagulation reactor, an ultrasonic transducer, an ultrasonic amplitude variable rod and an ultrasonic transmitting head; the ultrasonic transmitting head is connected to the tubular ultrasonic coagulation reactor, and the frequency-adjustable ultrasonic generator is connected to the ultrasonic transducer; the ultrasonic amplitude variable rod is connected between the ultrasonic transducer and the ultrasonic transmitting head; the outlet of the lifting pump is connected to the water inlet of the tubular ultrasonic coagulation reactor; the water outlet of the tubular ultrasonic coagulation reactor is connected to the inclined tube sedimentation tank through a pipeline.

[0007] Preferably, the tubular ultrasonic coagulation inclined tube sedimentation tank also includes a dosing device, which includes a reagent tank and an electromagnetic metering pump. The electromagnetic metering pump is connected between the reagent tank and the dosing port of the tubular ultrasonic coagulation reactor through a pipeline, and a reagent flow regulating valve is provided on the connecting pipeline.

[0008] Preferably, the tubular ultrasonic coagulation reactor is vertically arranged, the water inlet is opened at the lower end of the tubular ultrasonic coagulation reactor, the water outlet is opened at the upper end, and the dosing port is opened at the side of the bottom.

[0009] Preferably, an ultrasonic transducer B is provided at the bottom of the medicine tank.

[0010] Preferably, the inclined tube sedimentation tank is provided with an inclined tube and a flow stabilizing tube; the flow stabilizing tube is arranged at the center of the inclined tube sedimentation tank; and the bottom of the inclined tube sedimentation tank is a conical bottom.

[0011] Preferably, the water outlet of the tubular ultrasonic coagulation reactor is connected to the flow stabilizing cylinder through a pipeline.

[0012] Preferably, a sewage pool is further included, and the inlet of the lift pump is connected to the sewage pool pipeline.

[0013] Preferably, a baffle or a spiral plate is provided in the tubular ultrasonic coagulation reactor.

[0014] Beneficial effects of the utility model:

[0015] The utility model realizes the interference of ultrasonic wave on sewage coagulation by arranging a tubular ultrasonic coagulation reactor, thereby improving the coagulation reaction rate and coagulation effect of sewage, saving the volume of the coagulation reaction tank, and has the characteristics of simple structure, small size, and easy installation and replacement; the tubular ultrasonic coagulation reactor of the utility model can be directly installed on the pipeline, saving space.

[0016] By using an adjustable frequency ultrasonic generator, a water inlet flow regulating valve, and a reagent flow regulating valve, the intensity and reaction time of the coagulation reaction can be adjusted. By adjusting the reaction intensity and reaction time, the best coagulation reaction effect can be achieved.

[0017] The utility model can disperse the agent under the action of ultrasonic cavitation, has better mass transfer effect, improves the dispersion effect of the agent and sewage, greatly saves the consumption of the agent, and is suitable for the mixed reaction of various agents and sewage in sewage and wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the baffle structure in the tubular ultrasonic coagulation reactor of the utility model;

[0020] In the figure, 1 is a sewage tank, 2 is a lifting pump, 3 is a tubular ultrasonic coagulation reactor, 4 is a water inlet flow regulating valve, 5 is a flow meter, 6 is a water inlet, 7 is a reagent flow regulating valve, 8 is a reagent inlet, 9 is an ultrasonic driving power supply, 10 is a frequency-adjustable ultrasonic generator, 11 is an ultrasonic transducer A, 12 is an ultrasonic amplitude transformer, 13 is an ultrasonic transmitter, 14 is a water outlet, 15 is a sampling tube, 16 is a baffle / spiral plate, 17 is a reagent tank, 18 is an ultrasonic transducer B, 19 is an electromagnetic metering pump, 20 is an inclined tube sedimentation tank, 21 is an inclined tube, and 22 is a flow stabilizing tube. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0023] like Figure 1-2 As shown, the tubular ultrasonic coagulation inclined tube sedimentation tank includes a sewage tank 1, a lifting pump 2, a dosing device, an ultrasonic generating component and an inclined tube sedimentation tank 20.

[0024] The ultrasonic generating assembly includes a frequency-adjustable ultrasonic generator 10, a tubular ultrasonic coagulation reactor 3, an ultrasonic transducer A11, an ultrasonic horn 12, and an ultrasonic transmitter 13. The ultrasonic transmitter 13 is connected to the tubular ultrasonic coagulation reactor 3, the frequency-adjustable ultrasonic generator 10 is connected to the ultrasonic transducer A11, and the ultrasonic horn 12 is connected between the ultrasonic transducer A11 and the ultrasonic transmitter 13.

[0025] The lifting pump 2 is connected between the sewage tank 1 and the tubular ultrasonic coagulation reactor 3, and the sewage in the sewage tank 1 is transported to the tubular ultrasonic coagulation reactor 3 through the water inlet 6. The dosing device includes a reagent tank 17 and an electromagnetic metering pump 19. The electromagnetic metering pump 19 is connected between the reagent tank 17 and the drug inlet 8 of the tubular ultrasonic coagulation reactor 3 through a pipeline, and the coagulation reagents such as flocculants or coagulants in the reagent tank 17 are transported to the tubular ultrasonic coagulation reactor 3. The reagent delivery pipe is provided with a reagent flow regulating valve 7.

[0026] The sewage is transported to the ultrasonic tubular coagulation reactor 3 by the lifting pump 2, and the reagent is pumped into the tubular ultrasonic coagulation reactor 3 by the electromagnetic metering pump 19. The ultrasonic driving power supply 9 converts the 50Hz alternating current into a high-power high-frequency (15kHz-50kHz) power supply, and provides it to the ultrasonic transducer A11. The ultrasonic transducer A11 converts the high-frequency electrical energy into mechanical vibration energy. The vibration energy of the ultrasonic transducer is amplified by the ultrasonic horn 12 and then transmitted to the ultrasonic transmitter 13. The ultrasonic transmitter 13 transmits the mechanical energy and pressure to and acts on the reactants (medicine and sewage) of the tubular ultrasonic coagulation reactor 3. Ultrasonic waves produce alternating high and low pressures in the liquid. During the low-pressure cycle period, ultrasonic waves produce small vacuum bubbles in the liquid. During the high-pressure cycle process, the small vacuum bubbles burst violently. This phenomenon is called cavitation. The implosion of cavitation bubbles causes strong fluid dynamic shear force, and the shear force can fully mix the reactants. The reagent and sewage react violently under the action of ultrasonic cavitation, and then flow out of the tubular ultrasonic coagulation reactor 3 under the action of the inlet pressure. The inlet pipe of the tubular ultrasonic coagulation reactor 3 is provided with an inlet flow regulating valve 4 and a flow meter 5 to control the inlet flow. By using an adjustable frequency ultrasonic generator, an inlet flow regulating valve 4, and a reagent flow regulating valve 7, the intensity and reaction time of the coagulation reaction can be adjusted. By adjusting the reaction intensity and reaction time, the best coagulation reaction effect can be achieved. A sampling tube 15 with a valve is provided at the outlet pipe, and sampling can be used to observe the mixing reaction effect. The frequency of the ultrasonic wave can be adjusted by the mixing effect to achieve a better reaction effect.

[0027] As a preferred embodiment, an ultrasonic transducer B18 is provided at the bottom of the medicine tank 17, and the ultrasonic transducer B18 is connected to the frequency-adjustable ultrasonic generator 10 by a wire. The added medicine is usually solid, and the vibration generated by the ultrasonic transducer B18 stirs the medicine in the medicine tank 17, thereby accelerating the mixing and dissolution of the solid medicine and water.

[0028] As a preferred solution, the tubular ultrasonic coagulation reactor 3 is vertically arranged, the water inlet 6 is opened at the lower end of the tubular ultrasonic coagulation reactor 3, the water outlet 14 is opened at the upper end, and the drug inlet 8 is opened at the side of the bottom; the tubular ultrasonic coagulation reactor 3 is provided with a baffle or spiral plate 16 for extending the path of sewage. By providing the baffle or spiral plate 16, the residence time of sewage in the tubular ultrasonic coagulation reactor 3 is extended, and the ultrasonic action time is extended.

[0029] The inclined tube sedimentation tank 20 is provided with an inclined tube 21 and a flow stabilizing tube 22. The flow stabilizing tube 22 is arranged at the center of the inclined tube sedimentation tank 20. The bottom of the inclined tube sedimentation tank 20 is a conical bottom, and a slag discharge pipe is arranged at the bottom of the cone. The water outlet 14 of the tubular ultrasonic coagulation reactor 3 is connected to the flow stabilizing tube 22 through a pipeline. The mixed liquid after the coagulation reaction in the tubular ultrasonic coagulation reactor 3 enters the flow stabilizing tube 22 of the inclined tube sedimentation tank 20. The flocs are flocculated in the flow stabilizing tube 22, and the flow velocity slows down when they reach the bell mouth of the flow stabilizing tube. Large particles are precipitated under the action of gravity. Some water carrying particles moves upward and passes through the inclined tube filler. The particles are intercepted by the inclined tube and sink into the bottom of the cone. The clear water rises and is discharged from the outlet weir, thereby realizing solid-liquid separation.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A tubular ultrasonic coagulation inclined tube sedimentation tank, characterized in that: The invention comprises a lifting pump (2), an ultrasonic generating assembly and an inclined tube sedimentation tank (20); the ultrasonic generating assembly comprises a frequency-adjustable ultrasonic generator (10), a tubular ultrasonic coagulation reactor (3), an ultrasonic transducer A (11), an ultrasonic amplitude-changing rod (12) and an ultrasonic transmitting head (13); the ultrasonic transmitting head (13) is connected to the tubular ultrasonic coagulation reactor (3), and the frequency-adjustable ultrasonic generator (10) is connected to the ultrasonic transducer A (11); the ultrasonic amplitude-changing rod (12) is connected between the ultrasonic transducer A (11) and the ultrasonic transmitting head (13); the outlet of the lifting pump (2) is connected to the water inlet (6) of the tubular ultrasonic coagulation reactor (3); and the water outlet (14) of the tubular ultrasonic coagulation reactor (3) is connected to the inclined tube sedimentation tank (20) through a pipeline.

2. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 1 is characterized in that: It also includes a dosing device, which includes a medicine tank (17) and an electromagnetic metering pump (19). The electromagnetic metering pump (19) is connected between the medicine tank (17) and a medicine inlet (8) of the tubular ultrasonic coagulation reactor (3) through a pipeline, and a medicine flow regulating valve (7) is provided on the connecting pipeline.

3. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 2 is characterized in that: The tubular ultrasonic coagulation reactor (3) is arranged vertically, the water inlet (6) is opened at the lower end of the tubular ultrasonic coagulation reactor (3), the water outlet (14) is opened at the upper end, and the drug inlet (8) is opened at the side of the bottom.

4. The tubular ultrasonic coagulation inclined tube sedimentation tank according to any one of claims 1 to 3, characterized in that: The inclined tube sedimentation tank (20) is provided with an inclined tube (21) and a flow stabilizing tube (22); the flow stabilizing tube (22) is arranged at the center of the inclined tube sedimentation tank (20); and the bottom of the inclined tube sedimentation tank (20) is a conical bottom.

5. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 4 is characterized in that: The water outlet (14) of the tubular ultrasonic coagulation reactor (3) is connected to the flow stabilizing cylinder (22) through a pipeline.

6. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 4, characterized in that: It also includes a sewage pool, and the inlet of the lift pump (2) is connected to the sewage pool (1) through a pipeline.

7. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 2, characterized in that: An ultrasonic transducer B (18) is provided at the bottom of the medicine tank (17).

8. The tubular ultrasonic coagulation inclined tube sedimentation tank according to claim 1, characterized in that: The tubular ultrasonic coagulation reactor (3) is provided with a baffle or a spiral plate (16).

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