CN217921748U - Wastewater treatment device utilizing photocatalysis technology - Google Patents

Abstract

The utility model relates to the technical field of waste water treatment, in particular to a waste water treatment device using photocatalysis technology, comprising: a housing, the housing is provided with a water inlet and a water outlet; a filter, the filter is connected to the water inlet place; ultraviolet light source, the ultraviolet light source is arranged in the center of the top surface of the shell; the load plate, the load plate is set on the inner wall of the shell; the catalyst layer, the catalyst layer is set on the surface of the load plate; gas distributor, stirring Components and cleaning bristles. The wastewater treatment device provided by the utility model filters the impurities in the wastewater by setting a filter element at the water inlet, and by setting the cleaning bristles in contact with the catalyst layer, when the stirring blade rotates, the cleaning bristles rotate accordingly and contact the catalyst layer The surface contact is used to remove the attachments adhering to the surface of the catalyst layer. The gas distributor is arranged at the bottom of the shell to disturb the waste water through the gas to enhance the stirring effect and provide gas input for the photocatalytic reaction.

Description

A waste water treatment device using photocatalytic technology

technical field

The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device utilizing photocatalysis technology.

Background technique

Using photocatalysis to reuse wastewater treatment is a common treatment method in the field of wastewater treatment. The principle of photocatalysis is to use visible light or ultraviolet light to catalyze photocatalysts (that is, catalysts, such as titanium dioxide, zinc oxide, tin oxide, zirconium dioxide, cadmium sulfide and other oxide sulfide semiconductors) to catalyze the degradation of organic matter in contact with it. Therefore, in the photocatalytic treatment device, it is an important condition to improve the photocatalytic treatment of wastewater to ensure that the light source and the catalyst are directly and effectively irradiated, and that the wastewater is fully in contact with the catalyst.

Existing photocatalytic treatment devices, such as Chinese patent document CN 214299636 U (application number 202120219488.2), disclose a wastewater treatment device based on a loaded photocatalyst, including a filter box and a treatment box, and the front and rear sides of the filter box inner wall are close to The position on the left is provided with symmetrically distributed U-shaped positioning plates, and a filter plate is slidably connected between the two U-shaped positioning plates. There are symmetrically distributed servo motors, the end of the output shaft of the servo motor passes through the top of the second box cover and is coaxially connected with a rotating shaft, and the outer wall of the rotating shaft is provided with a plurality of stirring blades arranged at equal intervals. The wastewater treatment device based on the loaded photocatalyst can filter the impurities in the wastewater through the filter box, and the servo motor drives the stirring blade to rotate through the rotating shaft, so that the wastewater can fully contact with the photocatalyst, thereby improving the treatment of wastewater. efficiency. The filter box installed in this device can filter some impurities, but it cannot completely guarantee that the filtered wastewater is completely free of impurities. Therefore, during the use of the device, the catalyst will still be covered by impurities in the wastewater, resulting in a decrease in catalytic efficiency. .

Therefore, in order to achieve a better treatment effect on wastewater, it is still necessary to improve the treatment device to meet the needs of wastewater treatment.

Utility model content

The utility model is to overcome the above-mentioned deficiencies in the prior art, and provides a waste water treatment device using photocatalysis technology. A first filter device is arranged on the water inlet pipe of the device to perform preliminary filtration of pollutants, so as to reduce adhesion to light sources and catalysts. For the generation of surface impurities, a gas distributor is installed in the device to disturb the wastewater through gas, enhance the stirring effect, and provide gas input for the reaction.

In order to realize above-mentioned technical effect, the utility model adopts following technical scheme:

A wastewater treatment device utilizing photocatalytic technology, comprising,

a housing, the housing is provided with a water inlet and a water outlet;

filter element, the filter element is connected at the water inlet;

an ultraviolet light source, the ultraviolet light source is arranged at the center of the top surface in the housing;

a load plate, the load plate is arranged on the inner wall of the housing;

a catalyst layer, the catalyst layer is arranged on the surface of the support plate;

A gas distributor, the gas distributor is fixed on the inner bottom of the housing, and the housing also has an air inlet for supplying gas to the gas distributor;

A stirring assembly, the stirring assembly includes a driving motor and a stirring paddle, the driving motor is arranged on the casing, the stirring paddle is arranged inside the casing, and the stirring paddle is powered by the driving motor;

The cleaning bristles are arranged on the stirring paddle, and the cleaning bristles are in contact with the catalyst layer.

The wastewater treatment device provided by the utility model, by setting a filter element at the water inlet, the impurities carried in the wastewater are blocked outside the photocatalytic area as much as possible, and the impurities that cannot be filtered by the filter element are passed through the end of the stirring paddle Set the cleaning bristles in contact with the catalyst layer. When the stirring paddle rotates, the cleaning bristles will rotate accordingly and contact the surface of the catalyst layer to remove the attachments adhering to the surface of the catalyst layer, so as to ensure that the catalyst layer can always receive the light emitted by the ultraviolet light source. Ultraviolet light ensures the efficiency of photocatalytic treatment of wastewater. The gas distributor is installed at the bottom of the shell to disturb the wastewater through gas, enhance the stirring effect, and provide gas input for the photocatalytic reaction.

Preferably, the stirring paddle is connected to the driving motor through a belt transmission mechanism, the belt transmission mechanism includes a driving wheel, a driven wheel and a transmission member, the driving wheel is arranged on the output shaft of the driving motor, and the bottom surface of the driven wheel passes through The connecting rod is connected with the stirring paddle, the driven wheel is circular, and the stirring assembly includes at least two stirring paddles.

Preferably, the ultraviolet light source is arranged in the lampshade, and both the ultraviolet light source and the lampshade can be detachably installed on the lamp holder, and the lamp holder is detachably installed on the top surface of the housing, and the size of the lamp holder is smaller than that from The size of the inner ring of the moving wheel.

Further preferably, the cleaning bristles are in contact with the lampshade.

The ultraviolet light source has a certain service life. In order to facilitate replacement, the ultraviolet light source is arranged in the lampshade, and the ultraviolet light source and the lampshade are both arranged on a detachable lamp holder, but at the same time, the detachable setting of the lamp holder will inevitably affect the stirring blade. From the perspective of the device structure, there is a gas distributor at the bottom of the shell. The larger the area of the device, the better the turbulence of the wastewater. Therefore, the stirring paddle and its driving motor cannot be installed at the bottom of the shell. In order to achieve a good stirring effect, the stirring paddle is set in the middle part of the top of the shell. At the same time, in order to avoid the ultraviolet light source, the stirring paddle is set on the circular driven wheel. The driven wheel can be set by bearing or other methods On the casing, the driving motor transmits power to the driven wheel by means of the driving wheel and the transmission part arranged on the output shaft, thereby driving the stirring paddle to rotate without affecting the replacement of the ultraviolet light source.

Preferably, the cross-section of the catalytic layer is in a "W" shape, so as to increase the contact area of the catalyst with the ultraviolet light source and waste water.

Preferably, the bottom of the housing is fixed with support legs, the bottom of the housing is bent downwards, the housing is provided with a sewage outlet, the sewage outlet is located at the lowest point of the bottom of the housing, and the sewage outlet is provided with a sewage outlet valve.

Preferably, an inspection port is opened on the casing, and an inspection door for opening and closing the inspection port is also provided on the casing.

The devices and materials used in the utility model are all existing commercially available devices and materials, and will not be repeated here.

The beneficial effects of the utility model are:

1. The waste water treatment device provided by the utility model can block the impurities carried in the waste water outside the photocatalytic area as much as possible by setting a filter element at the water inlet;

2. For impurities that cannot be filtered by the filter element, the cleaning bristles that are in contact with the catalyst layer are arranged at the end of the stirring paddle. When the stirring paddle rotates, the cleaning bristles rotate accordingly and contact the surface of the catalyst layer to remove sticky The attachment attached to the surface of the catalyst layer ensures that the catalyst layer can always receive the ultraviolet light emitted by the ultraviolet light source, ensuring the efficiency of photocatalytic treatment of wastewater. The gas distributor is set at the bottom of the shell to disturb the wastewater through gas to enhance the stirring effect. , to provide gas input for the photocatalytic reaction;

3. Set the stirring paddle on the circular driven wheel. The driven wheel can be set on the shell by bearing or other means, and the driving motor will transmit the power to the driven wheel by means of the driving wheel and the transmission part set on the output shaft. The moving wheel, so as to drive the stirring paddle to rotate, does not affect the replacement of the ultraviolet light source.

Description of drawings

Fig. 1 is the structural representation of the waste water treatment device utilizing photocatalytic technology that embodiment 1 provides;

Among them, 1. shell; 11. water inlet; 111. filter; 12. water outlet; 13. sewage outlet; 14. sewage valve; 15. support leg; 16. inspection port; 17. inspection door; Light source; 21. Lamp holder; 22. Handle; 23. Lampshade; 31. Load plate; 32. Catalyst layer; 4. Gas distributor; 41. Air inlet; 51. Stirring paddle; 52. Drive motor; 53. Active Wheel; 54. transmission part; 55. driven wheel; 6. cleaning bristles.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

Example 1:

As shown in Figure 1, a wastewater treatment device using photocatalytic technology includes,

Housing 1, the housing 1 has a water inlet 11 and a water outlet 12; the bottom of the housing 1 is fixed with support legs 15, the bottom of the housing 1 is bent downward, and the housing 1 is opened with a sewage outlet 13. The sewage outlet 13 is located at the bottom of the housing 1, and the sewage outlet 13 is provided with a sewage valve 14; the water outlet 12 is arranged on the side wall of the housing 1, and the water outlet 12 can be provided with a water outlet filter. net, so as to avoid the impurities produced in the process from flowing out with the water; the casing 1 is provided with an inspection port 16, and the casing 1 is also provided with an inspection door 17 for opening and closing the inspection port 16;

Filter 111, the filter 111 is connected to the water inlet 11, in this embodiment, the filter 111 is a hollow cylinder whose size matches the water inlet 11, and the filter 111 is provided with a multi-layer filter net, the filter 111 The left and right ends of the filter are provided with structures that are convenient to connect with the water inlet 11 and the external water inlet pipe, such as flanges, threads, etc., such as the filter element 111, which can also be used for the water inlet disclosed in Chinese patent document CN 214990626 U (application number 20202937604.2) Filtering device, or other existing devices with the same filtering function, the water inlet 11 is provided with a connection structure matching the filter element 111;

An ultraviolet light source 2, the ultraviolet light source 2 is arranged at the center of the inner top surface of the housing 1, in this embodiment, the ultraviolet light source 2 is an ultraviolet lamp;

Load boards 31, the load boards 31 are arranged on the inner wall of the housing 1, in this embodiment, four identical load boards 31 are provided, and the load boards 31 are evenly distributed on the inner wall of the housing 1;

Catalyst layer 32, described catalyst layer 32 is arranged on the surface of load plate 31, and described catalytic layer is " W " type, to increase the contact area of catalyst and ultraviolet light source 2 and waste water; In the present embodiment, catalyst layer 32 is coated with Made of titanium dioxide (TiO ₂ ) distributed on the surface of the load plate 31;

A gas distributor 4, the gas distributor 4 is fixed on the inner bottom of the housing 1, and the housing 1 is also provided with an air inlet 41 for supplying gas to the gas distributor 4;

Stirring assembly, the stirring assembly includes a driving motor 52 and a stirring paddle 51, the driving motor 52 is arranged on the casing 1, the stirring paddle 51 is arranged inside the casing 1, and the stirring paddle 51 is provided by the driving motor 52 power;

The cleaning bristles 6 are arranged on the stirring paddle 51 , and the cleaning bristles 6 are in contact with the catalyst layer 32 .

The stirring paddle 51 is connected with the driving motor 52 through a belt transmission mechanism, and the belt transmission mechanism includes a driving wheel 53, a driven wheel 55 and a transmission member 54, and the driving wheel 53 is arranged on the output shaft of the driving motor 52. The bottom surface of the driven wheel 55 is connected to the stirring paddle 51 through a connecting rod, the driven wheel 55 is circular, and the stirring assembly includes at least two stirring paddles 51 . The transmission member 54 can be a chain, a belt or other transmission devices. In this embodiment, the transmission member 54 is a chain, and the stirring assembly includes three stirring paddles 51, which are evenly distributed on the bottom surface of the driven wheel 55. The ultraviolet light source 2 is arranged in the lampshade 23, and the ultraviolet light source 2 and the lampshade 23 can be detachably installed on the lamp holder 21, and the lamp holder 21 is detachably installed on the top surface of the housing 1. In this embodiment , the detachable connection methods are threaded connections, of course, other common connection methods can also be used, not limited to threaded connections. The top surface of the lamp holder 21 is provided with a handle 22 , which is convenient for the operator to rotate the lamp holder 21 , and the size of the lamp holder 21 is smaller than that of the inner circle of the driven wheel 55 . The ultraviolet light source 2 has a certain service life. For the convenience of replacement, the ultraviolet light source 2 is arranged in the lampshade 23, and the ultraviolet light source 2 and the lampshade 23 are all arranged on the detachable lamp holder 21, but at the same time, the lamp holder 21 can Disassembly and setting will inevitably affect the setting method of the stirring paddle 51. From the perspective of the device structure, the bottom of the housing 1 is provided with a gas distributor 4. The larger the area of the device, the better the disturbance effect on the waste water. Therefore, the stirring paddle 51 and Its driving motor 52 cannot be arranged at the bottom of the housing 1 . In order to achieve a good stirring effect, the stirring paddle 51 is arranged on the middle part of the top of the housing 1. At the same time, in order to avoid the ultraviolet light source 2, the stirring paddle 51 is arranged on the circular driven wheel 55. The driven wheel 55 can It is arranged on the housing 1 by using bearings or other methods, and the driving motor 52 transmits power to the driven wheel 55 through the driving wheel 53 and the transmission member 54 arranged on its output shaft, so as to drive the stirring paddle 51 to rotate without affecting the Replacement of UV light source 2.

Further, the position of the stirring paddle 51 at the lampshade 23 and the catalyst layer 32, when the stirring paddle 51 is driven by the driven wheel 55 to rotate, the cleaning bristles 6 arranged at the end of the stirring paddle 51 can be cleaned with the lampshade 23 and the catalyst layer 32 at the same time. contact to remove the impurities attached to the surface of the lampshade 23 and the catalyst layer 32 .

During specific use, the operator first connects the filter element 111 to the water inlet 11, and connects the water inlet pipe, the water outlet pipe and the air inlet pipe to the filter element 111, the water outlet 12 and the air inlet 41 respectively. First pass through the filtration of the filter element 111, enter the interior of the housing 1 through the water inlet 11, turn on the ultraviolet light source 2 and the drive motor 52, and the fixed driving wheel 53 on the output shaft of the drive motor 52 rotates, and the driving wheel 53 drives from the The driving wheel 55 rotates, and at this time, the driven wheel 55 drives the stirring paddle 51 fixed on its bottom surface to rotate; at the same time, the gas is injected into the gas distributor 4 from the air inlet 41 by using the air intake pump, and enters in the form of bubbles through the small hole on the top of the gas distributor 4. For example, in waste water, the waste water is disturbed. The ultraviolet light source 2 irradiates ultraviolet light on the catalyst layer 32. When the waste water contacts the catalyst layer 32, the waste water is treated due to the photocatalytic reaction. During the reaction, the stirring paddle 51 stirs the waste water. The cleaning bristles 6 clean the lampshade 23 and the catalyst layer 32, and the small holes on the top of the gas distributor 4 are continuously discharging gas, so there is no clogging and no cleaning is required. A water outlet filter is set at the water outlet 12 to filter the impurities generated during the photocatalysis process, and the impurities inside the housing 1 will settle to the bottom of the housing 1 where the housing 1 bends down, and the operator regularly opens the sewage valve 14 to discharge the dirt It is discharged from the sewage outlet 13 to the outside of the housing 1.

After the ultraviolet light source 2 has been used for a certain period of time, the operator uses the handle 22 to unscrew the lamp holder 21 to replace and maintain the ultraviolet light source 2. At the same time, the catalyst layer 32 will also be damaged during use, and the operator can open the maintenance door 17 , use the inspection port 16 to repair the catalyst layer 32 .

Claims (7)

1. A waste water treatment device utilizing photocatalytic technology, characterized in that, comprising, A housing (1), the housing (1) is provided with a water inlet (11) and a water outlet (12); filter element (111), the filter element (111) is connected at the water inlet (11); An ultraviolet light source (2), the ultraviolet light source (2) is arranged at the center of the inner top surface of the housing (1); a load plate (31), the load plate (31) is arranged on the inner side wall of the casing (1); a catalyst layer (32), the catalyst layer (32) is arranged on the surface of the support plate (31); A gas distributor (4), the gas distributor (4) is fixed on the inner bottom of the housing (1), and the housing (1) also has an air inlet for supplying gas to the gas distributor (4) ( 41); A stirring assembly, the stirring assembly includes a driving motor (52) and a stirring paddle (51), the driving motor (52) is arranged on the casing (1), and the stirring paddle (51) is arranged on the casing (1) Inside, the stirring paddle (51) is powered by a drive motor (52); Cleaning bristles (6), the cleaning bristles (6) are arranged on the stirring paddle (51), and the cleaning bristles (6) are in contact with the catalyst layer (32). 2. the waste water treatment device utilizing photocatalytic technology as claimed in claim 1, is characterized in that, described stirring paddle (51) is connected with drive motor (52) by belt transmission mechanism, and described belt transmission mechanism comprises driving wheel ( 53), driven wheel (55) and transmission member (54), described driving wheel (53) is arranged on the output shaft of drive motor (52), described driven wheel (55) bottom surface passes connecting rod and stirring paddle (51 ) connection, the driven wheel (55) is circular, and the stirring assembly includes at least two stirring paddles (51). 3. the waste water treatment device utilizing photocatalytic technology as claimed in claim 2, is characterized in that, described ultraviolet light source (2) is arranged in the lampshade (23), and described ultraviolet light source (2) and lampshade (23) all It is detachably installed on the lamp holder (21), and the lamp holder (21) is detachably installed on the top surface of the housing (1), and the size of the lamp holder (21) is smaller than the size of the inner ring of the driven wheel (55) . 4. The wastewater treatment device using photocatalytic technology according to claim 3, characterized in that the cleaning bristles (6) are in contact with the lampshade (23). 5 . The wastewater treatment device using photocatalytic technology according to claim 1 , wherein the cross-section of the catalyst layer is in a “W” shape. 6 . 6. The waste water treatment device utilizing photocatalytic technology as claimed in claim 1, characterized in that, the bottom of the housing (1) is fixed with supporting legs (15), and the bottom of the housing (1) is bent downwards, The housing (1) is provided with a sewage outlet (13), the sewage outlet (13) is located at the bottom of the housing (1), and the sewage outlet (13) is provided with a sewage valve (14). 7. The waste water treatment device utilizing photocatalytic technology as claimed in claim 1, characterized in that, an inspection port (16) is provided on the housing (1), and an inspection port (16) is provided on the housing (1). Open and close the inspection door (17) of the inspection port (16).

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