Desulfurization device for wastewater treatment

Abstract

The utility model discloses a desulfurization device for wastewater treatment, which comprises a reaction tank, the upper end of the reaction tank is fixedly provided with a sealing top cover, and the upper end of the sealing top cover is respectively and fixedly communicated with a water inlet, an exhaust port and a feed port; a stirring motor is fixedly mounted in the middle of the upper end of the sealing top cover, a stirring shaft is fixedly mounted on a transmission shaft part at the lower end of the stirring motor, a stirring paddle is fixedly mounted on the outer curved surface of the lower end of the stirring shaft, a first sludge discharge pipe is fixedly communicated with the bottom of the reaction tank, and a sludge discharge groove is fixedly communicated with the lower end of the first sludge discharge pipe; a sludge discharging motor is fixedly mounted at the side end of the sludge discharging groove, a spiral conveying paddle is fixedly mounted on a transmission shaft part on the inner side of the sludge discharging motor, a second sludge discharging pipe is fixedly communicated with the outer side of the lower end of the sludge discharging groove, and an aerator is fixedly mounted on the outer side wall of the lower end of the reaction tank in a supporting manner. According to the utility model, the wastewater is desulfurized and filtered, and meanwhile, sediments and impurities generated by desulfurization and filtration are convenient to maintain and clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, specifically is a desulfurization device for wastewater treatment. BACKGROUND

[0002] Wastewater treatment technology refers to the process of separating or converting pollutants in wastewater into harmless substances through various methods, thereby purifying the wastewater. This technology covers physical, chemical, and biological treatment methods, aiming to reduce the negative impact of wastewater on the environment, human beings, and ecosystems. The main functions of wastewater treatment include:

[0003] Environmental protection: harmful substances in wastewater, such as heavy metals and toxic organic matter, can cause serious pollution to water bodies, soil, and air if not treated before being discharged into the environment. Through wastewater treatment technology, these harmful substances can be effectively removed to protect the environment from pollution. Water resource protection: water resources are valuable natural resources, and wastewater treatment technology can remove pollutants in wastewater to meet the standards for reuse, thereby achieving water resource conservation and recycling. This is of great significance in alleviating water resource shortages. Human health protection: pathogens and bacteria in wastewater can pose a threat to human health. Through wastewater treatment technology, these microorganisms can be killed or removed, reducing the risk of disease transmission and protecting human health. Promote sustainable development: wastewater treatment technology not only contributes to environmental protection and human health, but also is closely related to economic development. Through wastewater treatment, reliable water resources can be provided for industries, agriculture, and daily life, thereby promoting sustainable development. Meet regulatory requirements: Many countries and regions have established strict wastewater discharge standards, requiring enterprises and individuals to adopt appropriate wastewater treatment technology to ensure that wastewater meets the specified standards before being discharged. Therefore, wastewater treatment technology is also a necessary means for enterprises and individuals to comply with regulations and avoid legal risks.

[0004] However, in actual use, the existing technology produces a large amount of sulfur-containing wastewater in many industrial production processes, such as chemical, dyeing, and leather-making industries. The presence of sulfides in wastewater not only causes unpleasant odors in water bodies, but also causes serious damage to the ecological environment of water bodies, affecting the survival of aquatic organisms, and may be converted into harmful substances under certain conditions, posing a threat to human health. Traditional wastewater desulfurization methods include chemical precipitation, oxidation, and biological methods. Chemical precipitation usually requires the addition of a large amount of chemical reagents, which is costly and may cause secondary pollution; oxidation may require high temperature, high pressure, or catalysts during the treatment process, which is complex to operate and energy-intensive; biological methods are relatively environmentally friendly, but have low treatment efficiency and strict requirements for wastewater quality, making them unsuitable for the treatment of high-concentration sulfur-containing wastewater. UTILITY MODEL CONTENT

[0005] The utility model discloses a desulfurization device for wastewater treatment to solve the traditional wastewater desulfurization method including chemical precipitation method, oxidation method and biological method etc. in the background art, the chemical precipitation method usually needs to add a large amount of chemical reagent, and the cost is higher and easy to produce secondary pollution, the oxidation method can need high temperature, high pressure or catalyst condition in the treatment process, and the operation is complex and the energy consumption is big, and the biological method is relatively environmental protection, but the processing efficiency is lower, and the wastewater quality requirement is strict, and it is not applicable to the treatment of high concentration sulfur-containing wastewater.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: including the reaction tank, the reaction tank upper end fixed installation has the sealing top cover, the sealing top cover upper end middle part fixed installation has the stirring motor, the stirring motor lower end transmission shaft part fixed installation has the stirring shaft, the stirring shaft lower end outer curved surface fixed installation has the stirring paddle, the reaction tank bottom fixed communication has the first sludge discharge pipe, the first sludge discharge pipe lower end fixed communication has the sludge discharge groove, the sludge discharge groove side end fixed installation has the sludge discharge motor, the sludge discharge motor inside transmission shaft part fixed installation has the spiral conveying paddle, the sludge discharge groove lower end outside fixed communication has the second sludge discharge pipe, the reaction tank lower end outside wall support fixed installation has the aerator, the aerator upper end fixed communication has the annular air pipe, the annular air pipe inside fixed communication has the extension pipe, the extension pipe inside fixed communication has the aeration disc,

[0007] The reaction tank inside lower end outside fixed communication has the first drain pipe, the first drain pipe is away from the reaction tank one side end fixed communication has the filter tank, the filter tank bottom penetrates fixed communication has the second drain pipe, the filter tank lower end outside fixed communication has the impurity discharge pipe, the reaction tank upper end outside wall support fixed installation has the drive motor, the drive motor upper end transmission shaft part fixed installation has the first synchronous wheel, and the first synchronous wheel outer end is connected with the second synchronous wheel through the synchronous belt transmission, the second synchronous wheel middle part fixed installation has the rotating shaft column, and the rotating shaft column lower end fixed installation has the filter drum.

[0008] Preferably, the sealing top cover upper end fixed communication has the water inlet, the exhaust port and the feed inlet respectively.

[0009] Preferably, the water inlet, the exhaust port and the feed inlet are communicated with the external wastewater pipe, the external exhaust pipe and the external feed pipe respectively.

[0010] Preferably, the stirring shaft is connected to the upper end of the reaction tank through the rotating shaft, and the stirring paddle is symmetrically distributed on the outer curved surface of the lower end of the stirring shaft.

[0011] Preferably, the first sludge discharge pipe middle part fixed installation has the on-off valve.

[0012] Preferably, the screw conveying paddle is rotatably connected in the sludge discharge groove through a rotating shaft.

[0013] Preferably, the number of the extension pipes is several, which are symmetrically distributed in sequence inside the annular air pipe, and the extension pipes extend inwardly to the inside of the reaction tank.

[0014] Preferably, a switch valve is fixedly installed in the middle of the first drain pipe, and a switch valve is fixedly installed in the middle of the impurity discharge pipe.

[0015] Preferably, the rotating shaft column is rotatably connected to the upper middle part of the filter tank through a rotating shaft.

[0016] Preferably, the filter cartridge is rotatably connected to the upper end of the second drain pipe through a rotating joint.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] When the wastewater and the desulfurization agent in the reaction tank are stirred and mixed, the aerator is opened, air is discharged into the aeration disc through the annular air pipe and the extension pipe, the air is uniformly dispersed into small bubbles by the aeration disc and discharged into the inside of the reaction tank, the contact area of oxygen and the wastewater in the reaction tank is increased, the oxidation reaction of sulfides in the wastewater is promoted, the chemical reaction of the desulfurization agent and the sulfides in the wastewater is accelerated, the sulfides are converted into harmless substances or compounds easy to precipitate, the precipitates generated in the reaction process gradually precipitate to the bottom of the reaction tank under the action of gravity, when the wastewater desulfurization reaction is completed, the first drain pipe is opened, the wastewater after the desulfurization reaction in the reaction tank is discharged into the filter tank, the wastewater after the desulfurization reaction is intercepted and filtered by the filter cartridge when the wastewater after the desulfurization reaction is discharged into the filter tank, and the intercepted and filtered wastewater is discharged outward through the second drain pipe, so that the wastewater is conveniently desulfurized and filtered.

[0019] This invention also features a second sludge discharge pipe. When the sediment is discharged into the sludge discharge tank, the sludge discharge motor is activated. When the sludge discharge motor is activated, it drives the spiral conveyor to rotate. When the spiral conveyor rotates, it pushes the sediment discharged into the sludge discharge tank outward through the second sludge discharge pipe, thus avoiding the situation where the sediment clogs the bottom of the reaction tank and is difficult to maintain and clean. At the same time, when the filter cartridge intercepts and filters the wastewater, the intercepted impurities will remain at the outer end of the filter cartridge. When the impurities remain at the outer end of the filter cartridge, the drive motor is activated. When the drive motor is activated, it drives the rotating shaft to rotate in sequence. When the rotating shaft rotates, it drives the filter cartridge to rotate. When the filter cartridge rotates, the centrifugal force will throw the impurities remaining at the outer end of the filter cartridge outward, avoiding the filter cartridge from clogging and affecting the filtration effect. At the same time, the thrown-out impurities can be discharged through the impurity discharge pipe. Thus, while desulfurizing and filtering the wastewater, it is also convenient to maintain and clean the sediment and impurities generated during desulfurization and filtration. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a desulfurization device for wastewater treatment according to this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of a desulfurization device for wastewater treatment according to this utility model. Figure 2 ;

[0022] Figure 3 This is a cross-sectional schematic diagram of the overall structure of a desulfurization device for wastewater treatment according to this utility model.

[0023] In the diagram: 1. Reaction tank; 2. Sealed top cover; 3. Water inlet; 4. Exhaust outlet; 5. Feed inlet; 6. Stirring motor; 7. Stirring shaft; 8. Stirring paddle; 9. First sludge discharge pipe; 10. Sludge discharge trough; 11. Sludge discharge motor; 12. Screw conveyor; 13. Second sludge discharge pipe; 14. Aerator; 15. Annular air pipe; 16. Extension pipe; 17. Aeration disc; 18. First drain pipe; 19. Filter tank; 20. Second drain pipe; 21. Impurity discharge pipe; 22. Drive motor; 23. First synchronous pulley; 24. Second synchronous pulley; 25. Rotating shaft column; 26. Filter cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3 The utility model provides a kind of desulfurization device for wastewater treatment technical scheme: including reaction tank 1, reaction tank 1 upper end is fixedly installed with sealing top cover 2, sealing top cover 2 upper end is fixedly connected with water inlet 3, exhaust port 4 and feed inlet 5 respectively, and water inlet 3, exhaust port 4 and feed inlet 5 are communicated with external wastewater pipe, external exhaust pipe and external feed pipe respectively, so that by water inlet 3 cooperation external wastewater pipe the wastewater required desulfurization is discharged to reaction tank 1 inside, by exhaust port 4 cooperation external exhaust pipe the gas generated in the reaction process in reaction tank 1 inside is discharged outward, by feed inlet 5 cooperation external feed pipe desulfurization reagent is discharged to reaction tank 1 inside;

[0026] Sealing top cover 2 upper end middle part is fixedly installed with stirring motor 6, stirring motor 6 lower end transmission shaft part is fixedly installed with stirring shaft 7, and stirring shaft 7 is rotatably connected on reaction tank 1 upper end inside by shaft penetrating, stirring shaft 7 lower end outer curve is fixedly installed with stirring paddle 8, and stirring paddle 8 number has several, respectively with stirring shaft 7 lower end outer curve is symmetrically distributed in turn, reaction tank 1 bottom is fixedly connected with first sludge discharge pipe 9, and first sludge discharge pipe 9 middle part is fixedly installed with switch valve, first sludge discharge pipe 9 lower end is fixedly connected with sludge discharge tank 10, sludge discharge motor 11 is fixedly installed on the side end of sludge discharge tank 10, the inner side transmission shaft part of sludge discharge motor 11 is fixedly installed with spiral conveying paddle 12, and spiral conveying paddle 12 is rotatably connected in sludge discharge tank 10 inside by shaft, sludge discharge tank 10 lower end outside is fixedly connected with second sludge discharge pipe 13, aeration machine 14 is fixedly installed on the outer side wall of the lower end of reaction tank 1, annular air pipe 15 is fixedly connected with the upper end of aeration machine 14, extension pipe 16 is fixedly connected with the inner side of annular air pipe 15, and the number of extension pipe 16 is several, respectively with the inner side of annular air pipe 15 is symmetrically distributed in turn, extension pipe 16 extends inward to the inside of reaction tank 1, and aeration disc 17 is fixedly connected with the inner side of extension pipe 16.

[0027] Reaction tank 1 inside lower end outside is fixedly connected with first drain pipe 18, and the middle part of first drain pipe 18 is fixedly installed with switch valve, and the side end away from reaction tank 1 of first drain pipe 18 is fixedly connected with filter tank 19, and the bottom of filter tank 19 is fixedly connected with second drain pipe 20 penetrating, and the outer side of the lower end of filter tank 19 is fixedly connected with impurity discharge pipe 21, and the middle part of impurity discharge pipe 21 is fixedly installed with switch valve, and drive motor 22 is fixedly installed on the outer side wall of the upper end of reaction tank 1, and the upper end transmission shaft part of drive motor 22 is fixedly installed with first synchronous pulley 23, and the outer end of first synchronous pulley 23 is connected with second synchronous pulley 24 by synchronous belt transmission, and the middle part of second synchronous pulley 24 is fixedly installed with rotating shaft column 25, and rotating shaft column 25 is rotatably connected in the upper end middle part of filter tank 19 by shaft penetrating, and filter cylinder 26 is fixedly installed on the lower end of rotating shaft column 25, and the bottom of filter cylinder 26 is rotatably connected on the upper end of second drain pipe 20 by rotary joint.

[0028] Working principle: in use, the utility model discloses through the control opening stirring motor 6, when stirring motor 6 opens, will drive stirring shaft 7 to rotate, when stirring shaft 7 rotates, will drive stirring paddle 8 to the wastewater and desulfurization reagent in the inside of reaction kettle 1 and carry out the stirring mixing, when the wastewater and desulfurization reagent in the inside of reaction kettle 1 carry out the stirring mixing, through opening aerator 14, when aerator 14 opens, will through annular air pipe 15 and extension pipe 16 and enter to the aeration disc 17 of air, when air enters to the aeration disc 17, through aeration disc 17 can be evenly dispersed into small air bubble and enter to the inside of reaction kettle 1 with air, make increase oxygen and the contact area of wastewater in the inside of reaction kettle 1, promote the oxidation reaction of sulfide in wastewater, to accelerate desulfurization reagent and sulfide in wastewater and take place chemical reaction, convert sulfide into harmless substance or easily precipitated compound, and the precipitate produced in the reaction process gradually precipitates to the bottom of reaction kettle 1 under the action of gravity, when wastewater desulfurization reaction is completed, through opening first drain pipe 18, when first drain pipe 18 opens, will enter to the inside of filter tank 19 after the wastewater of desulfurization reaction treatment in the inside of reaction kettle 1, when the wastewater after desulfurization reaction treatment enters to the inside of filter tank 19, through filter cartridge 26 can carry out the interception filtration treatment to wastewater, simultaneously through second drain pipe 20 can export after the wastewater of interception filtration and filter, to realize the effect that wastewater is conveniently desulfurized and filtration treatment;

[0029] When the wastewater is desulfurized and filtered, the first sludge discharge pipe 9 is opened, and when the first sludge discharge pipe 9 is opened, the precipitate at the bottom of the reaction tank 1 is discharged into the sludge discharge tank 10, and when the precipitate is discharged into the sludge discharge tank 10, the sludge discharge motor 11 is controlled to be opened, and when the sludge discharge motor 11 is opened, the spiral conveying paddle 12 is driven to rotate, and when the spiral conveying paddle 12 rotates, the precipitate discharged into the sludge discharge tank 10 is pushed outwards through the second sludge discharge pipe 13, thereby avoiding the situation that the precipitate is blocked at the bottom of the reaction tank 1 and is difficult to maintain and clean, and when the filter cartridge 26 intercepts and filters the wastewater, the impurities intercepted and filtered are retained at the outer end of the filter cartridge 26, and when the impurities are retained at the outer end of the filter cartridge 26, the drive motor 22 is controlled to be opened, and when the drive motor 22 is opened, the first synchronous wheel 23 is driven to rotate, and when the first synchronous wheel 23 rotates, the second synchronous wheel 24 is driven to rotate through the synchronous belt transmission, and when the second synchronous wheel 24 rotates, the rotating shaft column 25 is driven to rotate, and when the rotating shaft column 25 rotates, the filter cartridge 26 is driven to rotate, and when the filter cartridge 26 rotates, the impurities retained at the outer end of the filter cartridge 26 are thrown outwards under the action of the rotating centrifugal force, avoiding the situation that the filter cartridge 26 is blocked and the filtering effect is affected, and the impurities thrown out can be discharged through the impurity discharge pipe 21, thereby realizing the desulfurization and filtration of the wastewater and facilitating the maintenance and cleaning of the precipitate and impurities generated by desulfurization and filtration.

[0030] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or device.

[0031] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A desulfurization device for wastewater treatment, characterized in that: The reaction vessel includes a reaction vessel (1), a sealed top cover (2) is fixedly installed on the upper end of the reaction vessel (1), a stirring motor (6) is fixedly installed in the middle of the upper end of the sealed top cover (2), a stirring shaft (7) is fixedly installed on the lower drive shaft of the stirring motor (6), a stirring paddle (8) is fixedly installed on the outer curved surface of the lower end of the stirring shaft (7), a first mud discharge pipe (9) is fixedly connected to the bottom of the reaction vessel (1), a mud discharge trough (10) is fixedly connected to the lower end of the first mud discharge pipe (9), and a mud discharge trough (10) is fixedly connected to the side end of the mud discharge trough (10). A sludge discharge motor (11) is installed, and a spiral conveyor (12) is fixedly installed on the inner drive shaft of the sludge discharge motor (11). A second sludge discharge pipe (13) is fixedly connected to the outer side of the lower end of the sludge discharge trough (10). An aerator (14) is fixedly installed on the outer wall of the lower end of the reaction tank (1). An annular air pipe (15) is fixedly connected to the upper end of the aerator (14). An extension pipe (16) is fixedly connected to the inner side of the annular air pipe (15). An aeration disc (17) is fixedly connected to the inner side of the extension pipe (16). The reaction vessel (1) is fixedly connected to the lower outer side of the interior by a first drain pipe (18). The first drain pipe (18) is fixedly connected to a filter tank (19) on the side away from the reaction vessel (1). The bottom of the filter tank (19) is fixedly connected to a second drain pipe (20). The lower outer side of the filter tank (19) is fixedly connected to a waste pipe (21). The upper outer wall of the reaction vessel (1) is supported and fixedly installed with a drive motor (22). The upper drive shaft of the drive motor (22) is fixedly installed with a first synchronous pulley (23). The outer end of the first synchronous pulley (23) is connected to a second synchronous pulley (24) via a synchronous belt. The middle of the second synchronous pulley (24) is fixedly installed with a rotating shaft column (25). The lower end of the rotating shaft column (25) is fixedly installed with a filter cylinder (26).

2. The desulfurization device for wastewater treatment according to claim 1, characterized in that: The upper end of the sealing top cover (2) is fixedly connected to the water inlet (3), the exhaust port (4) and the feed inlet (5).

3. A desulfurization device for wastewater treatment according to claim 2, characterized in that: The water inlet (3), the exhaust outlet (4) and the feed inlet (5) are respectively connected to the external wastewater pipe, the external exhaust pipe and the external feed pipe.

4. A desulfurization device for wastewater treatment according to claim 3, characterized in that: The stirring shaft (7) is rotatably connected to the upper end of the reaction vessel (1) through a rotating shaft. There are several stirring paddles (8), which are symmetrically distributed on the outer curved surface of the lower end of the stirring shaft (7).

5. A desulfurization device for wastewater treatment according to claim 4, characterized in that: A switch valve is fixedly installed in the middle of the first mud discharge pipe (9).

6. A desulfurization device for wastewater treatment according to claim 5, characterized in that: The spiral conveyor (12) is rotatably connected inside the mud discharge trough (10) via a rotating shaft.

7. A desulfurization device for wastewater treatment according to claim 6, characterized in that: There are several extension tubes (16), which are symmetrically distributed on the inner side of the annular gas tube (15) and extend inward to the interior of the reaction vessel (1).

8. A desulfurization device for wastewater treatment according to claim 7, characterized in that: A switch valve is fixedly installed in the middle of the first drain pipe (18), and a switch valve is fixedly installed in the middle of the discharge pipe (21).

9. A desulfurization device for wastewater treatment according to claim 8, characterized in that: The rotating shaft (25) is rotatably connected to the middle of the upper end of the filter tank (19) through a rotating shaft.

10. A desulfurization device for wastewater treatment according to claim 9, characterized in that: The bottom of the filter cylinder (26) is rotatably connected to the upper end of the second drain pipe (20) via a rotating joint.

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