TOC removal device for low-temperature distillation of industrial wastewater

Abstract

The utility model relates to water treatment technical field especially a kind of TOC removal device for industrial wastewater low-temperature distillation, including shell, shell is the shell structure of inside hollow, water inlet pipe is equipped in shell, the inside cavity of shell is divided into irradiation cavity and exhaust cavity by water inlet pipe, exhaust cavity is located above irradiation cavity and is interconnected, multiple spray heads are equipped on water inlet pipe, and spray head is located in irradiation cavity;The inside of shell is equipped with inclined baffle, inclined baffle is inclined from periphery towards middle part, and discharge port is arranged in the middle part of inclined baffle;Rotary motor is equipped in the bottom of shell, the rotating shaft of rotary motor is through the bottom wall of shell and extends to the inside of shell, the rotating shaft of rotary motor is fixedly connected with driving shaft, driving shaft passes through discharge port and extends to irradiation cavity, and fan blade is detachably connected on driving shaft, and fan blade is opposite spray head;The utility model utilizes ultraviolet to decompose organic microparticle in water, organic matter is oxidized and decomposed into carbon dioxide and water, and then distilled water is obtained.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a TOC removal device for low-temperature distillation of industrial wastewater. Background Technology

[0002] Low-temperature evaporation refers to evaporation processes operating at temperatures below 70°C. Depending on the operating pressure, low-temperature evaporation can be further divided into low-temperature reduced-pressure evaporation and low-temperature atmospheric-pressure evaporation. Due to the low temperature, distilled water tends to retain a certain amount of total organic carbon (TOC). TOC is expressed as the total amount of organic matter in water, with higher TOC values ​​indicating higher organic matter content. Therefore, TOC can be used as an indicator of organic pollution in water. After low-temperature evaporation of industrial wastewater, eliminating TOC is a necessary measure. Common methods include: using activated carbon filters, which adsorb organic matter, including TOC; using ion exchange resins, which remove dissolved organic matter and ions; using UV light irradiation, which decomposes organic matter in water; and using ozone oxidation, a physical method where ultraviolet light with wavelengths less than 200nm effectively decomposes organic particles in water, especially low-molecular-weight pollutants, oxidizing and decomposing organic matter into carbon dioxide and water. For example, Chinese patent CN2122466... 17U discloses a high-purity water TOC removal device, including an inlet pipe, a filter device, a first connecting pipe, a decarbonation tank, an outlet pipe, an exhaust pipe, a drain pipe, and an ultraviolet monitor. One end of the inlet pipe is connected to tap water, and the other end is fixedly connected to one end of the filter device. The other end of the filter device is fixedly connected to one end of the first connecting pipe, and the other end of the first connecting pipe is fixedly connected to the first end of the decarbonation tank. The first end of the decarbonation tank is also equipped with an ultraviolet monitor. The other end of the decarbonation tank is equipped with an outlet pipe, one end of which connects to the inside of the decarbonation tank, and the other end of which is equipped with an outlet valve. An exhaust pipe and a drain pipe are respectively installed on the outer wall of the decarbonation tank. The above-mentioned high-purity water TOC removal device is equipped with an irradiation chamber and an exhaust chamber. The irradiation chamber has a spray device that can effectively increase the amount of ultraviolet light received by the raw water. After sufficient degradation, the water flows into the exhaust chamber, where negative pressure is used to separate CO2 gas from the water. However, this patent first uses an irradiation chamber to decompose CO2 gas, then mixes the CO2 gas with distilled water, and then separates the CO2 gas from the water through negative pressure. During this process, some CO2 gas will dissolve in the water, resulting in poor quality distilled water.

[0003] Therefore, it is necessary to provide a TOC removal device for low-temperature distillation of industrial wastewater, which performs a TOC removal process again after the industrial wastewater has completed low-temperature distillation, while reducing the miscibility between the separated CO2 gas and the distilled water and improving the preparation quality. This is what those skilled in the art need to do. Utility Model Content

[0004] The purpose of this invention is to provide a TOC removal device for low-temperature distillation of industrial wastewater, in order to solve the technical problem in the prior art that some CO2 gas will re-dissolve with distilled water during the TOC removal process, resulting in poor quality of distilled water.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a TOC removal device for low-temperature distillation of industrial wastewater, comprising a shell, the shell having a hollow internal shell structure, an inlet pipe provided inside the shell, the inlet pipe dividing the internal cavity of the shell into an irradiation cavity and an exhaust cavity, the exhaust cavity being located above the irradiation cavity and interconnected, multiple nozzles provided on the inlet pipe, the nozzles being located inside the irradiation cavity; an inclined partition provided inside the shell, the inclined partition being inclined from all sides toward the center, the surface of the inclined partition being coated with photocatalytically active titanium dioxide, a drain port being opened in the center of the inclined partition; a rotating motor provided at the bottom of the shell, the rotating shaft of the rotating motor passing through the bottom wall of the shell and extending into the interior of the shell, a drive shaft fixedly connected to the rotating shaft of the rotating motor, the drive shaft passing through the drain port and extending into the irradiation cavity, a fan blade detachably connected to the drive shaft, the fan blade facing the nozzle.

[0006] Furthermore, the water inlet pipes are evenly distributed inside the shell, with some of the water inlet pipes penetrating the shell wall and extending outwards, and the water inlet pipes located outside the shell connected to external water pipes.

[0007] Furthermore, the irradiation cavity is equipped with irradiation lamps, which are evenly distributed on the inner wall of the housing. The irradiation lamps partially penetrate the housing wall and are connected to an external power source.

[0008] Furthermore, the irradiation lamp is an ultraviolet irradiation lamp.

[0009] Furthermore, the housing has an exhaust port located in the exhaust cavity, the exhaust port penetrates the housing wall, and an exhaust fan is provided inside the exhaust port.

[0010] Furthermore, the bottom wall of the shell slopes from all sides toward the center, and a deposition cavity with a conical bottom is formed between the bottom wall of the shell and the inclined partition. A drain outlet is provided on the shell wall inside the deposition cavity, and the drain outlet penetrates the shell wall and extends outward.

[0011] Furthermore, the irradiation cavity is connected to the deposition cavity.

[0012] Furthermore, the tilt angle of the inclined partition is 5° to 15°.

[0013] The beneficial effects of this invention are as follows: This invention utilizes an ultraviolet lamp to irradiate ultraviolet light into the irradiation cavity, decomposing organic particles in the water and oxidizing and decomposing the organic matter into carbon dioxide and water, thereby obtaining distilled water. Simultaneously, the nozzle ensures that water is sprayed evenly within the irradiation cavity, thereby improving the efficiency of organic matter decomposition and ensuring that the organic matter is fully decomposed. Furthermore, this invention utilizes a rotating motor to drive the fan blades to rotate within the irradiation cavity. The fan blades strike the large water droplets, achieving a secondary atomization and diffusion of the large water droplets, increasing the duration of the atomized water droplets within the irradiation cavity, thus ensuring the complete decomposition of organic particles in the water and further improving the filtration effect. Attached Figure Description

[0014] Figure 1 This is a perspective view of the TOC removal device for low-temperature distillation of industrial wastewater according to this utility model.

[0015] Figure 2 This is a front sectional view of the TOC removal device for low-temperature distillation of industrial wastewater according to this utility model.

[0016] Figure 3 yes Figure 2 Schematic diagram of the isometric side.

[0017] The components in the attached diagram are labeled as follows: 10. Housing; 11. Water inlet pipe; 12. Irradiation lamp; 13. Nozzle; 14. Inclined baffle; 15. Fan blade; 16. Exhaust port; 17. Deposition cavity; 18. Irradiation cavity; 19. Exhaust cavity; 20. Rotating motor; 21. Drain port; 22. Drive shaft; 23. Drain outlet. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Please see Figure 1 , Figure 2 This utility model provides a TOC removal device for low-temperature distillation of industrial wastewater, including a shell 10. The shell 10 has a hollow shell structure. A water inlet pipe 11 is provided inside the shell 10. The water inlet pipe 11 is evenly distributed inside the shell 10. The water inlet pipe 11 partially penetrates the wall of the shell 10 and extends outward. A water pipe (not shown) is connected to the water inlet pipe 11 outside the shell 10 to introduce water into the water inlet pipe 11.

[0020] Furthermore, the water inlet pipe 11 divides the internal cavity of the housing 10 into an irradiation cavity 18 and an exhaust cavity 19. The exhaust cavity 19 is located above the irradiation cavity 18 and is interconnected with it. The water inlet pipe 11 is provided with multiple nozzles 13, which are located inside the irradiation cavity 18. In use, water is introduced into the water inlet pipe 11, and the water is atomized and sprayed into the irradiation cavity 18 through the nozzles 13, so as to achieve rapid water supply and ensure uniform diffusion.

[0021] An irradiation lamp 12 is installed inside the irradiation cavity 18. The irradiation lamps 12 are evenly distributed on the inner wall of the housing 10, and part of the irradiation lamp 12 penetrates the wall of the housing 10 and is connected to an external power source. The irradiation lamp 12 is an ultraviolet irradiation lamp with a wavelength of 185nm. In use, ultraviolet light is irradiated into the irradiation cavity 18 to decompose organic particles in the water, oxidizing and decomposing the organic matter into carbon dioxide and water, thereby obtaining distilled water. At the same time, the nozzle 13 ensures that water is evenly sprayed into the irradiation cavity 18, thereby improving the efficiency of organic matter decomposition and ensuring that the organic matter is fully decomposed.

[0022] The housing 10 has an exhaust port 16 located in the exhaust cavity 19. The exhaust port 16 penetrates the wall of the housing 10 and has an exhaust fan (not shown in the figure) inside the exhaust port 16. This fan is used to forcibly discharge the carbon dioxide in the exhaust cavity 19 to ensure the stability of use. At the same time, it prevents the decomposed carbon dioxide from remaining in the irradiation cavity 18 and the exhaust cavity 19 for a long time, reduces the repeated mixing of carbon dioxide and water, and improves the filtration quality.

[0023] Furthermore, the housing 10 is provided with an inclined partition 14 inside, which is inclined from all sides toward the center, and a drain port 21 is opened in the center of the inclined partition 14. The surface of the inclined partition 14 is coated with titanium dioxide with photocatalytic activity. The titanium dioxide on the surface of the inclined partition 14 absorbs the energy of the ultraviolet light emitted by the irradiation lamp 12, and generates a photocatalytic oxidation reaction to decompose the organic particles in the water, oxidizing and decomposing the organic matter into carbon dioxide and water. A rotating motor 20 is provided at the bottom of the housing 10. The rotating shaft of the rotating motor 20 passes through the bottom wall of the housing 10 and extends into the interior of the housing 10. A drive shaft 22 is fixedly connected to the rotating shaft of the rotating motor 20. The drive shaft 22 passes through the drain port 21 and extends into the irradiation cavity 18. A fan blade 15 is detachably connected to the drive shaft 22, and the fan blade 15 faces the nozzle 13.

[0024] In this embodiment, the tilt angle of the inclined partition 14 is 5° to 15°.

[0025] In use, the water sprayed from the nozzle 13 is atomized and diffused into the irradiation cavity 18. The atomized water droplets disperse and gather into large water droplets in the irradiation cavity 18. Under the action of gravity, the large water droplets fall onto the inclined baffle 14 and are discharged from the drain port 21. This utility model uses a rotating motor 20 to drive the fan blade 15 to rotate in the irradiation cavity 18. The fan blade 15 strikes the large water droplets, realizing a second atomization and diffusion of the large water droplets, increasing the duration of the atomized water droplets in the irradiation cavity 18, thereby ensuring the full decomposition of organic particles in the water and further improving the filtration effect.

[0026] Furthermore, the bottom wall of the shell 10 slopes from all sides towards the center, forming a deposition cavity 17 with a conical bottom between the bottom wall of the shell 10 and the inclined partition 14. A drain outlet 23 is provided on the shell 10 wall within the deposition cavity 17, with the axis of the drain outlet 23 coinciding with the axis of the shell 10. The drain outlet 23 penetrates the shell 10 wall and extends outwards, its height exceeding the bottom height of the deposition cavity 17. The deposition cavity 17 accumulates filtered water. When the water level in the deposition cavity 17 reaches the drain outlet 23, the water flows out through the drain outlet 23, while the impurities deposited in the water remain at the bottom of the deposition cavity 17, completing the filtration process. The irradiation cavity 18 is connected to the deposition cavity 17 via a drain outlet 21.

[0027] The specific operation method of this utility model is as follows: water is introduced into the water inlet pipe 11, and the water is atomized and sprayed into the irradiation cavity 18 through the nozzle 13. Ultraviolet light is used to irradiate the irradiation cavity 18. At the same time, the exhaust fan in the exhaust port 16 is started to discharge carbon dioxide. The rotating motor 20 is started, and the fan blade 15 rotates in the irradiation cavity 18. The filtered water accumulates in the sedimentation cavity 17 and is then discharged from the drain port 23, thus completing the filtration.

[0028] This invention utilizes an ultraviolet lamp to irradiate ultraviolet light into the irradiation cavity 18. The titanium dioxide on the surface of the inclined partition 14 absorbs the energy of the ultraviolet light emitted by the lamp, generating a photocatalytic oxidation reaction that decomposes organic particles in the water, oxidizing and decomposing the organic matter into carbon dioxide and water, thus obtaining distilled water. Simultaneously, the nozzle 13 ensures that water is evenly sprayed within the irradiation cavity 18, thereby improving the efficiency of organic matter decomposition and ensuring that the organic matter is fully decomposed. Furthermore, the invention utilizes a rotating motor 20 to drive the fan blades 15 to rotate within the irradiation cavity 18. The fan blades 15 impact the large water droplets, achieving a secondary atomization and diffusion of the large water droplets, increasing the duration of the atomized water droplets within the irradiation cavity 18, thereby ensuring the sufficient decomposition of organic particles in the water and further improving the filtration effect.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A TOC removal device for low-temperature distillation of industrial wastewater, comprising a shell (10), the shell (10) having an internally hollow shell structure, and an inlet pipe (11) provided inside the shell (10), characterized in that, The water inlet pipe (11) divides the internal cavity of the housing (10) into an irradiation cavity (18) and an exhaust cavity (19). The exhaust cavity (19) is located above the irradiation cavity (18) and is interconnected with it. The water inlet pipe (11) is provided with multiple nozzles (13), which are located inside the irradiation cavity (18). The housing (10) is provided with an inclined partition (14), which is inclined from all sides toward the center. The surface of the inclined partition (14) is coated with photocatalytically active carbon dioxide. Titanium, with a drain port (21) in the middle of the inclined partition (14); a rotating motor (20) is provided at the bottom of the housing (10), the rotating shaft of the rotating motor (20) passes through the bottom wall of the housing (10) and extends into the interior of the housing (10), a drive shaft (22) is fixedly connected to the rotating shaft of the rotating motor (20), the drive shaft (22) passes through the drain port (21) and extends into the irradiation cavity (18), and a fan blade (15) is detachably connected to the drive shaft (22), the fan blade (15) facing the nozzle (13).

2. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 1, characterized in that, The water inlet pipe (11) is evenly distributed inside the shell (10). The water inlet pipe (11) partially penetrates the wall of the shell (10) and extends outward. The water inlet pipe (11) located outside the shell (10) is connected to a water pipe.

3. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 1, characterized in that, The irradiation cavity (18) is equipped with an irradiation lamp (12), which is evenly distributed on the inner wall of the housing (10). The irradiation lamp (12) partially penetrates the wall of the housing (10) and is connected to an external power source.

4. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 3, characterized in that, The irradiation lamp (12) is an ultraviolet irradiation lamp.

5. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 1, characterized in that, The housing (10) is provided with an exhaust port (16) located in the exhaust cavity (19), the exhaust port (16) penetrates the wall of the housing (10), and an exhaust fan is provided in the exhaust port (16).

6. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 1, characterized in that, The bottom wall of the shell (10) slopes from all sides toward the center. A deposition cavity (17) with a conical bottom is formed between the bottom wall of the shell (10) and the inclined partition (14). A drain outlet (23) is provided on the shell (10) wall inside the deposition cavity (17). The drain outlet (23) penetrates the shell (10) wall and extends outward.

7. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 6, characterized in that, The irradiation cavity (18) is connected to the deposition cavity (17).

8. The TOC removal device for low-temperature distillation of industrial wastewater according to claim 1, characterized in that, The tilt angle of the inclined partition (14) is 5° to 15°.

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