Ozone fluidized bed experimental device

Abstract

The utility model discloses an ozone fluidized bed experimental device. The ozone fluidized bed experimental device comprises a frame body, and a raw water tank, a water inlet pump, an ozone fluidized reactor and an ozone generator which are integrally arranged on the frame body, wherein the raw water tank is connected with a water inlet of the ozone fluidized reactor through the water inlet pump; an ozone aeration device is arranged in the ozone fluidized reactor, and the ozone generator is connected with an air inlet of the ozone aeration device through a pipeline. According to the utility model, the technical effects that related operation parameters can be rapidly and simply measured by combining different processes, and real data reference is provided for actual engineering application are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an ozone fluidized bed experimental device. Background Art

[0002] With the progress of mankind, water pollution has attracted more and more attention. Among them, the treatment of industrial wastewater is particularly prominent. Industrial wastewater has the characteristics of complex composition, high toxicity, poor biodegradability, and many difficult-to-biodegrade organic matter. With the annual increase in the amount of industrial wastewater and the continuous increase in new pollutants, the water treatment process of the combination of traditional physical and chemical treatment and biochemical treatment faces serious challenges. Ozone has a strong oxidizing property, which is second only to fluorine, and its byproduct is clean and pollution-free oxygen, which has a strong advantage in the field of environmental governance. Therefore, the advanced oxidation of ozone and its combined process are increasingly widely used in industrial wastewater treatment, but in the project, there are insufficient reference process parameters, which will lead to insufficient or waste of ozone. In addition, due to the different characteristics of wastewater for different projects, it is also necessary to re-debug the on-site process to explore the parameters, which leads to high debugging costs and long debugging time, delaying the progress of the project. Utility Model Content

[0003] The main purpose of the utility model is to provide an ozone fluidized bed experimental device to solve the problems in the related art of insufficient reference process parameters in the advanced oxidation of ozone, the need for re-debugging for different wastewaters, high debugging costs, and time and labor consumption.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an ozone fluidized bed experimental device, which comprises: a frame and a raw water tank, a water inlet pump, an ozone fluidized reactor and an ozone generator which are integrated and arranged on the frame; wherein:

[0005] The raw water tank is connected to the water inlet of the ozone fluidized reactor through the water inlet pump;

[0006] An ozone aeration device is arranged in the ozone fluidized reactor, and the ozone generator is connected to the air inlet of the ozone aeration device through a pipeline.

[0007] Furthermore, it also includes a stirring component, which is arranged in the raw water tank and is configured to be driven to stir the raw water in the raw water tank.

[0008] Furthermore, an ozone aeration device is provided at the lower part of the ozone generator;

[0009] A guide tube and a guide device are also provided in the ozone generator. The lower end of the guide tube corresponds to the water inlet, and the upper end corresponds to the guide device. There is a gap between the guide device and the upper end of the guide tube so that the liquid flowing through the guide tube can flow out from the gap.

[0010] Furthermore, the flow guiding device is coaxially arranged with the flow guiding tube, and the cross-sectional area of ​​the flow guiding device is larger than the cross-sectional area of ​​the flow guiding tube.

[0011] Furthermore, a first water outlet and a second water outlet with different heights are axially provided on the upper portion of the ozone fluidized reactor.

[0012] Furthermore, a sampling port is provided on the ozone fluidized reactor, and the sampling port is located above the flow guide device and below the first water outlet and the second water outlet.

[0013] Furthermore, it also includes a tail gas destroyer, which is fixed on the frame. The upper end of the ozone fluidized bed reactor is provided with a tail gas outlet, and the tail gas destroyer is connected to the tail gas outlet through a pipeline.

[0014] Furthermore, it also includes an ozone concentration detector and a flow meter. The ozone concentration detector is fixed on the frame, and the ozone generator, the ozone concentration detector, the flow meter and the ozone aeration device are connected in sequence.

[0015] Furthermore, the ozone generator includes a gear regulator, and the gear regulator is used to adjust the ozone concentration generated by the ozone generator.

[0016] Furthermore, it also includes a control electric box and an ozone leakage alarm, wherein the control electric box and the ozone leakage alarm are both fixedly mounted on the frame;

[0017] The control electrical box is electrically connected to at least the ozone generator and the water inlet pump.

[0018] In the embodiment of the utility model, a frame body and a raw water tank, a water inlet pump, an ozone fluidized reactor and an ozone generator integrated on the frame body are provided; wherein the raw water tank is connected to the water inlet of the ozone fluidized reactor through the water inlet pump; an ozone aeration device is provided in the ozone fluidized reactor, and the ozone generator is connected to the air inlet of the ozone aeration device through a pipeline, so that on the one hand, the equipment required for ozone fluidized treatment is integrated into one frame body, and when the treatment process needs to be re-determined, the equipment can be quickly transported to the site for experimental ozone fluidized treatment to determine the process parameters, thereby achieving the technical effect of being able to quickly and simply combine different processes to determine the relevant operating parameters, and provide real data reference for actual engineering applications, thereby solving the problems in the related technology of insufficient reference process parameters in the advanced oxidation of ozone, the need for re-debugging for different wastewaters, high debugging costs, and time-consuming and labor-intensive debugging; at the same time, after the equipment required for ozone fluidized treatment is integrated into one frame body, the use and transportation costs and floor space are reduced, and maintenance and debugging are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The drawings and descriptions of the schematic embodiments of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0021] Among them, 1 is a frame, 2 is a raw water tank, 3 is a stirring assembly, 4 is an ozone leak alarm, 5 is a water inlet pump, 6 is a water inlet, 7 is a vent, 8 is an aeration device, 9 is a guide tube, 10 is an ozone fluidized reactor, 11 is a sampling port, 12 is a guide device, 13 is a first water outlet, 14 is a second water outlet, 15 is an exhaust gas outlet, 16 is an exhaust gas destroyer, 17 is a control electrical box, 18 is an ozone concentration detector, 19 is an ozone generator, and 20 is a flow meter. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to describe the embodiments of the utility model described here.

[0024] In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "inner", etc. are based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the terms "disposed", "provided with", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] In addition, the term "plurality" shall mean two or more.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] At present, advanced oxidation of ozone and its combined processes are increasingly used in industrial wastewater treatment. However, there are insufficient reference process parameters in the project, which will lead to insufficient or waste of ozone. In addition, due to the different characteristics of wastewater from different projects, it is also necessary to re-debug the treatment equipment used on site to explore parameters, which leads to high debugging costs and long debugging time, delaying the progress of the project.

[0030] To solve the above technical problems, Figure 1As shown, the embodiment of the utility model provides an ozone fluidized bed experimental device, which includes: a frame 1 and a raw water tank 2, a water inlet pump 5, an ozone fluidized reactor 10 and an ozone generator 19 integrated on the frame 1; wherein,

[0031] The raw water tank 2 is connected to the water inlet 6 of the ozone fluidized reactor 10 via a water inlet pump 5;

[0032] An ozone aeration device 8 is provided in the ozone fluidized reactor 10, and an ozone generator 19 is connected to an air inlet of the ozone aeration device 8 through a pipeline.

[0033] In this embodiment, the ozone fluidized bed experimental device is a miniaturized ozone fluidized bed device, which integrates the equipment required for wastewater ozone oxidation treatment into a frame 1, and the frame 1 serves as the installation base of each device. Specifically, in this embodiment, the frame 1 can be an aluminum alloy frame structure, such as Figure 1 As shown, it includes a plurality of transverse frames, vertical frames and transverse mounting plates. The transverse mounting plates can be fixed on the transverse frames and vertical frames at different positions, and the space of the frame 1 is divided into different parts according to needs. Different spaces can be used to accommodate and install different equipment. The specific space division method can be determined according to the volume of the specific equipment used, the layout position and the connection relationship between the various equipment. This embodiment does not limit it here.

[0034] In this embodiment, the equipment required for the ozone fluidized bed mainly includes a raw water tank 2, a water inlet pump 5, an ozone fluidized reactor 10 and an ozone generator 19. Among them, the raw water tank 2 is used to store the raw water to be treated, and to perform relevant pretreatment operations on the raw water. In one embodiment, the required pretreatment operations include stirring the raw water stored in the raw water tank 2, which can make the raw water more uniform and stable, or adding acid / alkali to the raw water to adjust the pH value of the raw water, or adding liquid catalysts such as hydrogen peroxide, sodium hypochlorite, etc. According to different pretreatment requirements, the raw water tank 2 may include related stirring equipment, feeding ports, etc. in addition to a cavity for storing raw water. This embodiment does not limit it here, and it can be designed according to actual needs and working conditions.

[0035] The ozone fluidized reactor 10 is a device for raw water and ozone to undergo oxidation reaction, and is a relatively important component in the ozone fluidized bed. In this embodiment, the ozone fluidized reactor 10 at least includes a water inlet 6, a water outlet, and an ozone aeration device 8. The raw water in the raw water tank 2 enters the ozone fluidized reactor 10 through the water inlet 6, and the ozone is aerated in the ozone fluidized reactor 10 through the ozone aeration device 8, thereby increasing the contact area between the ozone and the raw water, thereby improving the treatment effect. In order to facilitate the input of the raw water in the raw water tank 2 into the ozone fluidized reactor 10, the water outlet of the raw water tank 2 and the water inlet 6 of the ozone fluidized reactor 10 in this embodiment are connected by a water inlet pump 5. Under the action of the water inlet pump 5, the raw water can be pressurized and then input into the ozone fluidized reactor 10. The pressurized raw water flows faster and can better react with ozone.

[0036] like Figure 1 As shown, in order to make the water inlet of the ozone fluidized reactor 10 more uniform, at least two water inlets 6 can be formed on the ozone fluidized reactor 10, and the two water inlets 6 can be connected to the water inlet pump 5 through a three-way valve. It can be understood that there can be more than two water inlets 6.

[0037] The ozone generator 19 is a device for generating ozone, and it can be a product in the related art. The specific structure of the ozone generator 19 is not described in detail in this embodiment. The ozone generator 19 is connected to the ozone aeration device 8 through a pipeline, and the generated ozone can be transported to the ozone aeration device 8 for aeration.

[0038] like Figure 1 As shown, in an embodiment in which the raw water tank 2, the water inlet pump 5, the ozone fluidized reactor 10 and the ozone generator 19 are arranged on the frame 1, since the raw water tank 2 and the ozone fluidized reactor 10 both have a certain height, the two are arranged on both sides of the frame 1, and the installation foundation is provided by the horizontal mounting plate in the frame 1, and the matching installation space is divided. The water inlet pump 5 can be arranged between the raw water tank 2 and the ozone fluidized reactor 10, thereby reducing the length of the pipeline connection. Since the height of the raw water tank 2 is generally lower than the ozone fluidized reactor 10, the frame 1 has a spare installation space above the raw water tank 2, and the ozone generator 19 can be arranged above the raw water tank 2 to improve the space utilization. It should be noted that the above-mentioned embodiment of the specific arrangement is not restrictive, and can be adaptively adjusted according to actual conditions based on the concept of this embodiment.

[0039] On the one hand, the utility model achieves the purpose of integrating the equipment required for ozone fluidization treatment into a frame 1, and when the treatment process needs to be re-determined, the equipment can be quickly transported to the site for experimental ozone fluidization treatment to determine the process parameters, thereby achieving the technical effect of being able to quickly and simply combine different processes to measure relevant operating parameters, and provide real data reference for actual engineering applications, thereby solving the problems faced in the related technology of insufficient reference process parameters in the advanced oxidation of ozone, the need for re-debugging for different wastewaters, high debugging costs, and time-consuming and labor-intensive debugging; at the same time, after the equipment required for ozone fluidization treatment is integrated into a frame 1, the use and transportation costs and floor space are reduced, and it is convenient for maintenance and debugging.

[0040] In one embodiment of the raw water tank 2, in order to improve the uniformity and stability of the raw water and to facilitate the materials added during the pretreatment process to be better dissolved in the raw water, Figure 1 As shown, in this embodiment, a stirring assembly 3 is further provided on the raw water tank 2 . The stirring assembly 3 is arranged in the raw water tank 2 . The stirring assembly 3 is configured to be driven to stir the raw water in the raw water tank 2 .

[0041] In one embodiment of the stirring component 3, it includes a stirring shaft, a stirring blade and a stirring motor. The stirring motor can be fixed at the upper end of the raw water tank 2, and the stirring shaft extends into the raw water tank 2 and is connected to the stirring blade. At the same time, the upper end of the stirring shaft extends out of the raw water tank 2 and is transmission-connected to the stirring motor. The stirring motor drives the stirring shaft to rotate, thereby driving the stirring blade to rotate, thereby achieving stirring of the raw water.

[0042] In order to better mix the raw water with the ozone in the ozone fluidized reactor 10, Figure 1 As shown, the raw water preferably enters from the lower end of the ozone fluidized reactor 10, and accordingly, the ozone aeration device 8 is arranged at the lower part of the ozone generator 19. In order to further improve the mixing effect, as shown in FIG. Figure 1 As shown, in this embodiment, a guide tube 9 and a guide device 12 are also provided in the ozone generator 19. The lower end of the guide tube 9 corresponds to the water inlet 6, and the upper end corresponds to the guide device 12. There is a gap between the guide device 12 and the upper end of the guide tube 9 so that the liquid flowing through the guide tube 9 can flow out from the gap.

[0043] Specifically, it should be noted that the ozone aeration device 8 can be an ozone titanium aeration head installed at the bottom of the ozone fluidized reactor 10 and located at the lower end of the guide tube 9, and the aeration volume is 0-10L / min. The guide tube 9 is a roughly cylindrical hollow cylindrical structure, and the guide device 12 is a plate-like structure installed above the guide tube 9. A certain distance is maintained between the outer side of the guide tube 9 and the inner wall of the ozone fluidized reactor 10. The raw water entering the ozone fluidized reactor 10 through the water inlet pump 5 first enters the guide tube 9. Using the kinetic energy of ozone and water pressure, ozone and raw water flow upward along the guide tube 9 in the guide tube 9 until they contact the guide device 12. Under the action of the guide device 12, the fluid trajectory of the gas-water mixed liquid is changed. Under the influence of the setting of the guide device 12 and the negative pressure formed at the bottom of the middle guide tube 9, the gas-water mixed liquid will form a counterclockwise internal circulation on the left side of the guide tube 9, and a clockwise internal circulation will be formed on the right side of the guide tube 9. The two water inlets 6 at the bottom of the ozone fluidized reactor 10 can be arranged close to the inner wall of the guide tube 9 .

[0044] In this embodiment, the flow guide tube 9 and the flow guide device 12 are arranged to make the raw water circulate multiple times in the ozone fluidized bed, greatly extending the water flow path, expanding the gas-liquid contact area, constantly renewing the gas-liquid film layer, increasing the bubble stroke and improving the ozone transfer efficiency, and finally making the ozone contact with the pollutants in the raw water more fully, and the ozone treatment effect in the sewage is better. According to the flow rate of ozone gas, the raw water can reach 5-20 times of circulation through calculation.

[0045] In one arrangement implementation of the flow guiding device 12 and the flow guiding tube 9 , the flow guiding device 12 and the flow guiding tube 9 are arranged coaxially, and the cross-sectional area of ​​the flow guiding device 12 is larger than the cross-sectional area of ​​the flow guiding tube 9 .

[0046] To facilitate better determination of process parameters, in this embodiment, a first water outlet 13 and a second water outlet 14 of different heights are axially opened on the upper part of the ozone fluidized reactor 10, and the water outlet can be selected according to the actual water inlet flow rate and residence time.

[0047] To facilitate water sample testing during water treatment, such as Figure 1 As shown, in this embodiment, a sampling port 11 is also provided on the ozone fluidized reactor 10, and the sampling port 11 is located above the flow guide device 12, and is also located below the first water outlet 13 and the second water outlet 14. It can be understood that the first water outlet 13, the second water outlet 14 and the sampling port 11 are all provided with openable valves, which can be mechanical valves or electromagnetic valves, and this embodiment does not limit them here. To facilitate emptying, in this embodiment, an emptying port 7 can also be provided at the bottom of the ozone fluidized reactor 10.

[0048] Since the input amount of ozone is uncertain in the process of determining the process parameters, the ozone fluidized reactor 10 will produce some unreacted ozone mixed gas. In order to better handle this part of the ozone mixed gas, the present embodiment also includes a tail gas destroyer 16, which is fixed on the frame 1. The upper end of the ozone fluidized reactor 10 is provided with a tail gas outlet 15, and the tail gas destroyer 16 is connected to the tail gas outlet 15 through a pipeline. In the present embodiment, the tail gas destroyer 16 can adopt a device capable of handling ozone mixed gas in the relevant technology, and the present embodiment does not repeat its specific structure here. Through the setting of the tail gas destroyer 16, the unreacted ozone mixed gas can be treated in an environmentally friendly manner to prevent ozone from being directly discharged into the air and causing harm to the experimenter.

[0049] In order to obtain more accurate process parameters, such as Figure 1 As shown, this embodiment also includes an ozone concentration detector 18 and a flow meter 20. The ozone concentration detector 18 is fixed on the frame 1, and the ozone generator 19, the ozone concentration detector 18, the flow meter 20 and the ozone aeration device 8 are connected in sequence.

[0050] Specifically, it should be noted that the ozone concentration detector 18 can detect the ozone concentration currently generated by the ozone generator 19. In one embodiment, the ozone concentration detector 18 detects a concentration of 0-100 mg / L; the detection principle is a dual-path ultraviolet absorption method with a display resolution of 0.01 mg / L; and the input pressure is less than 0.1 MPa. The flow meter 20 can accurately detect the current ozone flow rate. In one embodiment, the flow meter 20 is a rotor flow meter with a range of 0-10 L / min.

[0051] On this basis, the ozone generator 19 includes a gear regulator, which is used to adjust the ozone concentration generated by the ozone generator 19. The gear regulator may include multiple gear adjustments. In one embodiment, the ozone concentration is controlled at 5-120 mg / L, and the outlet pressure of the ozone generator 19 is ≤0.1 MPa.

[0052] In order to facilitate the efficient operation of the ozone generator 19, in this embodiment, a pure oxygen tank is connected to the inlet end of the ozone generator 19 to control the intake pressure to be less than 0.1Mpa. The ozone generator 19 is turned on, and the gear of the ozone generator 19 is controlled by the gear regulator to control the concentration of ozone. The outlet of the ozone generator 19 is directly connected to the ozone concentration detector 18, and the ozone concentration is tested by the ozone concentration detector 18. The outlet of the ozone concentration detector 18 is connected to the flow meter 20, and the other end of the flow meter 20 is connected to the ozone aeration device 8.

[0053] In order to enable the experimental device to be used quickly after being transported to the site, Figure 1As shown, the present embodiment also includes a control electrical box 17, which is fixed on the frame 1 and can be located above the water inlet pump 5 or at other locations. The control electrical box 17 is electrically connected to other equipment on the frame 1 that requires power supply. In one embodiment, the control electrical box 17 is electrically connected to at least the ozone generator 19 and the water inlet pump 5. Optionally, the control electrical box 17 can also be electrically connected to other electronic devices such as the ozone concentration detector 18 and the flow meter 20. In the present embodiment, the power input terminals of various electronic devices in the experimental device are integrated into the control electrical box 17. After the experimental device is transported to the site, the municipal electricity or industrial electricity can be directly connected to the power input terminal of the control electrical box 17 to enable it, which is more effective and more convenient to use.

[0054] In order to facilitate the detection of ozone leakage during the experiment, the present embodiment further includes an ozone leakage alarm 4 . The range of the ozone concentration meter is 0-10 ppm. The ozone leakage alarm 4 is fixedly mounted on the frame 1 .

[0055] The above description is only the preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the utility model.

Claims

1. An ozone fluidized bed experimental device, characterized in that: include: A frame and a raw water tank, a water inlet pump, an ozone fluidized reactor and an ozone generator integrated on the frame; wherein, The raw water tank is connected to the water inlet of the ozone fluidized reactor through the water inlet pump; An ozone aeration device is arranged in the ozone fluidized reactor, and the ozone generator is connected to the air inlet of the ozone aeration device through a pipeline.

2. The ozone fluidized bed experimental device according to claim 1, characterized in that: It also includes a stirring component, which is arranged in the raw water tank and is configured to be driven to stir the raw water in the raw water tank.

3. The ozone fluidized bed experimental device according to claim 1, characterized in that: The ozone aeration device is arranged at the lower part of the ozone generator; A guide tube and a guide device are also provided in the ozone generator. The lower end of the guide tube corresponds to the water inlet, and the upper end corresponds to the guide device. There is a gap between the guide device and the upper end of the guide tube so that the liquid flowing through the guide tube can flow out from the gap.

4. The ozone fluidized bed experimental device according to claim 3, characterized in that: The flow guiding device is coaxially arranged with the flow guiding cylinder, and the cross-sectional area of ​​the flow guiding device is larger than the cross-sectional area of ​​the flow guiding cylinder.

5. The ozone fluidized bed experimental device according to claim 3 or 4, characterized in that: A first water outlet and a second water outlet with different heights are axially provided on the upper part of the ozone fluidized reactor.

6. The ozone fluidized bed experimental device according to claim 5, characterized in that: The ozone fluidized reactor is also provided with a sampling port, which is located above the flow guide device and below the first water outlet and the second water outlet.

7. The ozone fluidized bed experimental device according to claim 1, characterized in that: It also includes a tail gas destroyer, which is fixed on the frame. The upper end of the ozone fluidized reactor is provided with a tail gas outlet, and the tail gas destroyer is connected to the tail gas outlet through a pipeline.

8. The ozone fluidized bed experimental device according to claim 1, characterized in that: It also includes an ozone concentration detector and a flow meter. The ozone concentration detector is fixed on the frame. The ozone generator, the ozone concentration detector, the flow meter and the ozone aeration device are connected in sequence.

9. The ozone fluidized bed experimental device according to claim 1, characterized in that: The ozone generator comprises a gear regulator, and the gear regulator is used to adjust the ozone concentration generated by the ozone generator.

10. The ozone fluidized bed experimental device according to claim 1, characterized in that: It also includes a control electric box and an ozone leakage alarm, wherein the control electric box and the ozone leakage alarm are both fixedly mounted on the frame; The control electrical box is electrically connected to at least the ozone generator and the water inlet pump.

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