Sulfur autotrophic denitrification small equipment convenient to use

Abstract

The utility model discloses small-sized sulfur autotrophic denitrification equipment convenient to use. Hooks are erected in an operation layer; the lifting basket comprises a net-shaped box body and a lifting hook, the top of the net-shaped box body is provided with the lifting hook, the net-shaped box body is filled with sulfur autotrophic filler, and the lifting basket is placed in the filter material pair lamination layer. A hook is erected in the operation layer, and a lifting hook on the basket is hooked through the hook, so that an operator can easily move the basket to a specified position or take out the whole basket from the basket, the placement or replacement process of the sulfur autotrophic filler in the net-shaped box body is further simplified, and the sulfur autotrophic filler can be conveniently taken out from a filter tank to be cleaned or replaced; and the safety risk in the operation process is reduced through the simplified operation process and the reduced manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a small-scale sulfur autotrophic denitrification device that is easy to use. Background Technology

[0002] With increasingly stringent environmental protection requirements, the denitrification process in wastewater treatment is becoming increasingly important. As a key piece of equipment for treating nitrogen compounds in wastewater, the performance of denitrification filters directly affects the efficiency and effectiveness of the entire wastewater treatment system.

[0003] However, existing denitrification filters have significant shortcomings in replacing sulfur autotrophic media. Traditional denitrification filter replacement requires first removing the old sulfur autotrophic media, cleaning the filter interior, and then filling with new sulfur autotrophic media. This process involves multiple steps, each requiring manual operation, which is not only time-consuming but also cumbersome. Because sulfur autotrophic media are typically heavy, transportation and replacement require substantial manpower and resources. The complexity and time-consuming nature of the sulfur autotrophic media replacement process leads to prolonged downtime of the denitrification filter, impacting the overall efficiency of the wastewater treatment system. Furthermore, during the sulfur autotrophic media replacement process, operators may come into contact with wastewater or hazardous substances, posing certain safety risks.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a small-scale sulfur autotrophic denitrification device that is easy to use, in order to solve the problem of complex procedures and large workload in replacing sulfur autotrophic packing in conventional denitrification filter beds in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a user-friendly small-scale sulfur autotrophic denitrification device, comprising a denitrification filter, hooks, a basket, and sulfur autotrophic packing material; the denitrification filter is arranged from bottom to top as a water distribution zone, a filter plate layer, a support layer, a filter media stacking layer, and an operation layer, with the hooks mounted inside the operation layer; the basket comprises a mesh box and a hook that cooperates with the hooks, the hooks being provided on the top of the mesh box, the sulfur autotrophic packing material being filled inside the mesh box, and the basket being placed inside the filter media stacking layer.

[0007] In one embodiment of the present invention, a water collection tank and a centrifugal pump are also included, wherein the water collection tank is connected to the water distribution area through the centrifugal pump.

[0008] The beneficial effects of the above embodiments are that the centrifugal pump can ensure that the sewage in the collection tank can enter the denitrification filter tank evenly and continuously, avoiding the problem of decreased treatment effect due to unstable flow, and helping to improve the treatment efficiency and stability of the entire system.

[0009] In one embodiment of this utility model, a liquid level sensor or a float level gauge is provided inside the water collection tank, and the centrifugal pump is signal-connected to the liquid level sensor or the float level gauge.

[0010] The beneficial effects of the above embodiments are that the level sensor or float level gauge can monitor the water level changes in the water collection tank in real time and transmit this information to the control system to ensure that the water level in the water collection tank is always kept within a suitable range. This not only avoids the overflow problem caused by excessively high water level, but also prevents the normal operation of the equipment from being affected by excessively low water level.

[0011] In one embodiment of the present invention, an overflow pipe is provided on the water collection bucket, and the overflow pipe is located near the top of the water collection bucket.

[0012] The beneficial effects of the above embodiments are as follows: the overflow pipe is a safety device used to automatically discharge excess water when the water level in the collection tank exceeds a predetermined height, which helps to prevent the collection tank from overflowing due to accidents (such as control system failure), thereby protecting the safety of equipment and personnel.

[0013] In one embodiment of the present invention, a backwash water tank and a backwash outlet pipe are also included. The backwash water tank is connected to the denitrification filter, and the denitrification filter is connected to the outside through the backwash outlet pipe.

[0014] The beneficial effects of the above embodiments are as follows: by regularly using the clean water in the backwash water tank to backwash the filter, the dirt and impurities on the surface of the filter media can be effectively removed, restoring its filtration performance. As an effective cleaning method for denitrification filters, it helps to extend the service life of the filter media and maintain the efficient operation of the equipment.

[0015] In one embodiment of this utility model, maintenance ladders are provided on the side walls of both the backwash water tank and the denitrification filter.

[0016] The beneficial effects of the above embodiments are as follows: the maintenance ladder provides operators with a safe and convenient way to inspect and maintain the denitrification filter and its related components, which helps to identify and solve problems in a timely manner, thereby avoiding greater losses. At the same time, it can also improve the safety of the working environment and reduce maintenance costs.

[0017] In one embodiment of the present invention, a blower and a backwashing air pipe connected to the blower are also included. The backwashing air pipe extends into the denitrification filter and is located below the filter plate layer. The outlet of the backwashing air pipe is arranged upward toward the filter plate layer.

[0018] The beneficial effects of the above embodiments are as follows: when cleaning the sulfur self-growth packing, the blower and backwash air pipe use airflow to blow up the filter material and clean the attached sludge. They are used alternately with the backwash water tank and backwash outlet pipe. By setting the start and stop times for the two cleaning methods, the sludge on the sulfur self-growth packing can be effectively cleaned.

[0019] In one embodiment of the present invention, a mounting bracket is further included, and the hook is provided on the mounting bracket.

[0020] The beneficial effects of the above embodiments are that they further improve the convenience of replacing the sulfur self-growth packing in the basket, which not only saves time and effort but also improves work efficiency and reduces the possibility of errors.

[0021] As described above, the user-friendly small-scale sulfur autotrophic denitrification equipment of this utility model has the following beneficial effects: hooks are installed inside the operating layer, which hook onto the hooks on the basket, allowing operators to easily move the basket to a designated position or remove the entire basket from it. This simplifies the placement or replacement process of the sulfur autotrophic packing material in the mesh box, and it can be easily removed from the filter for cleaning or replacement. The simplified operation process and reduced manual intervention lower the safety risks during operation, which not only helps to keep the equipment clean and hygienic and extend its service life, but also ensures the continuity and stability of the denitrification process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of the easy-to-use small-scale sulfur autotrophic denitrification device provided by this utility model;

[0024] Figure 2 Another structural schematic diagram of the easy-to-use small-scale sulfur autotrophic denitrification device provided by this utility model;

[0025] Figure 3 A partial structural schematic diagram of the easy-to-use small-scale sulfur autotrophic denitrification device provided by this utility model;

[0026] Figure 4 A plan view of a small-scale sulfur autotrophic denitrification device that is easy to use, provided by this utility model.

[0027] Component designation explanation

[0028] 1 denitrification filter 15 backwash water tank

[0029] 3 hooks, 16 backflush water pipes

[0030] 4 baskets, 17 maintenance ladders

[0031] 5-sulfur self-supporting packing 18 blower

[0032] 6 water distribution area 19 backwash air pipes

[0033] 7 filter plates, 20 mounting brackets

[0034] 8 supporting layers, 21 mesh box

[0035] 9 filter media stacked layers 22 hooks

[0036] 10 Operational Layer 23 Overflow Port

[0037] 11-compartment water tank, 24-floating debris removal device

[0038] 12 level sensors, 25 centrifugal pumps

[0039] 13 Float Level Gauge 26 Backwash Water Pump

[0040] 14 Overflow pipe 27 Chemical dosing tank Detailed Implementation

[0041] This utility model provides a small-scale sulfur autotrophic denitrification device that is easy to use. To make the purpose, technical solution and effect of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and examples.

[0042] In the description of this utility model, it should be understood that the terms "up, down, left, right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation," "connection," etc. should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Please see Figures 1 to 4This utility model provides a user-friendly small-scale sulfur autotrophic denitrification device, including a denitrification filter 1, hooks 3, baskets 4, and sulfur autotrophic packing material 5. The denitrification filter 1 is arranged from bottom to top as a water distribution zone 6, filter plate layer 7, support layer 8, filter media stacking layer 9, and operating layer 10. In this embodiment, the small-scale denitrification device can process 200-300 cubic meters of water per day. Wastewater first enters the water distribution zone 6 of the denitrification filter, where it undergoes preliminary distribution and pretreatment. The water distribution zone 6 ensures that the wastewater is evenly distributed throughout the filter, preparing it for subsequent filtration and denitrification processes. The wastewater then passes through the filter plate layer 7, which typically consists of multiple filter plates, to further remove large suspended solids and impurities from the wastewater. Subsequently, the wastewater enters the support layer 8, which provides necessary support to prevent the filter media from sinking and maintain the structural stability of the filter. The filter media stack 9 is filled with specialized sulfur autotrophic filler 5, which provides a suitable growth environment for denitrifying sulfur bacteria. When wastewater flows through the filter media stack 9, the denitrifying sulfur bacteria use the organic matter in the wastewater to reduce nitrates to nitrogen gas, thereby achieving significant denitrification.

[0044] The hook 3 is installed within the operating layer 10; the basket 4 includes a mesh box 21 and a hook 22 that cooperates with the hook 3. The hook 22 is located on the top of the mesh box 21, and the mesh box 21 is filled with the sulfur self-nourishing filler. The basket 4 is placed within the filter media stack 9. In this embodiment, there are multiple mesh boxes 21, which completely cover the filter media stack 9. The size and number of mesh boxes 21 can be adjusted according to actual conditions. The hook 22 is movably installed on the top of the mesh box 21 and hangs down naturally when not in use.

[0045] In this embodiment, a water collection tank 11 and a centrifugal pump 25 are also included. The water collection tank 11 is connected to the water distribution zone 6 via the centrifugal pump 25. The close connection between the water collection tank 11 and the water distribution zone 6 ensures that wastewater flows into the denitrification filter 1 uniformly and continuously, effectively avoiding the problem of treatment effect affected by flow fluctuations and significantly improving the overall treatment efficiency and stability of the system. To further optimize performance, the water collection tank 11 is also equipped with a level sensor 12 or a float level gauge 13, achieving signal connection. For example, by monitoring the water level changes in the water collection tank 11 in real time, the control system can ensure that the water level is always maintained within a suitable range, preventing the risk of overflow due to excessively high water levels and avoiding the adverse effects of excessively low water levels on equipment operation.

[0046] In addition, an overflow pipe 14 is provided on the top of the water collection tank 11. As a safety device, it can automatically discharge excess water when the water level exceeds a predetermined height, effectively preventing the water collection tank 11 from overflowing due to unexpected situations, thereby ensuring the safety of equipment and personnel.

[0047] To maintain the filtration performance of the filter bed, the equipment is also equipped with a backwash water tank 15 and a backwash outlet pipe 16. By periodically backwashing the filter bed with clean water from the backwash water tank 15, dirt and impurities on the surface of the filter media can be efficiently removed, extending the service life of the filter media and maintaining the efficient operation of the equipment. In this embodiment, a backwash water pump 26 is also included. The backwash water tank 15 is connected to the bottom of the denitrification filter bed 1 through the backwash water pump 26. During the backwashing stage, clean water from the backwash water tank 15 is pumped to the filter media stack layer 9 where the sulfur autotrophic packing is located, thereby cleaning the sulfur autotrophic packing.

[0048] To improve cleaning efficiency, the denitrification equipment is also equipped with a blower 18 and a backwash air pipe 19. The blower 18 delivers air into the denitrification filter tank 1 through the backwash air pipe 19, which is positioned below the filter plate layer 7 and blows air towards the filter plate layer, ensuring that the air can loosen the sulfur autotrophic filter media and allow pollutants to detach from the media. Specifically, the blower 18 is a Roots blower. When cleaning the sulfur autotrophic packing, the blower and backwash air pipe utilize airflow to clean the attached sludge. They are used alternately with the backwash water tank and backwash outlet pipe, allowing for flexible setting of the start and stop times for both cleaning methods, effectively cleaning the deposits on the sulfur autotrophic packing.

[0049] Preferably, the backwash tank 15 is also equipped with the float level gauge 13 for monitoring water level changes within the backwash tank 15. Specifically, regarding equipment maintenance, both the backwash tank 15 and the denitrification filter 1 are equipped with maintenance ladders 17 on their side walls, providing operators with a safe and convenient access path, facilitating timely detection and resolution of problems, preventing greater losses, improving the safety of the working environment, and reducing maintenance costs. In another feasible embodiment, the backwash tank 15 and the backwash outlet pipe 16 can be combined with a pulse-type water washing device to clean the filter plate layer 7 and the filter media stack layer 9, thereby improving the cleaning effect.

[0050] Optionally, the system also includes a mounting bracket 20, on which the hook 3 is provided, allowing operators to easily adjust the position of the basket 4 according to actual needs to adapt to different working scenarios. This further improves the convenience of replacing the sulfur self-nourishing filler 5, saves time and effort, increases work efficiency, and reduces the possibility of errors.

[0051] Optionally, the denitrification filter 1 is also equipped with an overflow port 23 and a floating debris removal device 24. The overflow port 23 is located above the liquid surface of the denitrification filter 1, and the floating debris removal device 24 is located on the liquid surface. The floating debris removal device 24 includes a scraper and a drive motor for driving the scraper to swing on the liquid surface to clean the floating debris peeled off from the backwash packing. The scraper has a telescopic structure, which can effectively move the floating debris on the liquid surface when fully extended. In addition, the centrifugal pump 25 connected to the denitrification filter reverses during the cleaning stage to suck up the sediment that has settled at the bottom of the denitrification filter 1 after the preliminary treatment of the wastewater.

[0052] It also includes a dosing tank 27, a stirring device, and a metering pump. The stirring device is installed in the dosing tank to accelerate the dissolution of the drug in the tank. The dosing tank 27 is also connected to the denitrification filter 1 via the metering pump to quantitatively add the dissolved drug to the denitrification filter 1. Specifically, the flow rate of the metering pump is 150 L / h.

[0053] In this embodiment, the metering pump, stirring device, backwash water pump 26, blower 18, centrifugal pump 25, and liquid level sensor 12 are all connected to the intelligent control device to realize intelligent control.

[0054] Please see Figure 1 and Figure 2 The hook 3 can be scaled by a hand-cranked wheel to adjust the height of the hook.

[0055] In summary, this utility model's user-friendly small-scale sulfur autotrophic denitrification device features hooks 3 within the operating layer 10. These hooks 3 engage with hooks 22 on the basket 4, allowing operators to easily move the basket 4 to a designated position or remove it entirely. This simplifies the placement and replacement of the sulfur autotrophic packing 5 within the mesh box 21, facilitating its removal from the filter for cleaning or replacement. The simplified operation and reduced manual intervention lower safety risks during operation, contributing to equipment cleanliness, extended service life, and ensuring the continuity and stability of the denitrification process. Therefore, this utility model effectively overcomes the shortcomings of existing technologies and possesses high industrial applicability.

[0056] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A user-friendly, small-scale sulfur autotrophic denitrification device, characterized in that, The system includes a denitrification filter, hooks, a basket, and sulfur autotrophic packing material. The denitrification filter is arranged from bottom to top as a water distribution zone, a filter plate layer, a support layer, a filter media stack layer, and an operating layer. The hooks are installed in the operating layer. The basket includes a mesh box and a hook that cooperates with the hooks. The hook is installed on the top of the mesh box. The sulfur autotrophic packing material is filled in the mesh box. The basket is placed in the filter media stack layer.

2. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 1, characterized in that, It also includes a water collection tank and a centrifugal pump, wherein the water collection tank is connected to the water distribution area through the centrifugal pump.

3. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 2, characterized in that, The water collection tank is equipped with a liquid level sensor or a float level gauge, and the centrifugal pump is connected to the liquid level sensor or the float level gauge.

4. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 2, characterized in that, An overflow pipe is provided on the water collection tank, and the overflow pipe is located near the top of the water collection tank.

5. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 1, characterized in that, It also includes a backwash water tank and a backwash outlet pipe. The backwash water tank is connected to the denitrification filter, and the denitrification filter is connected to the outside through the backwash outlet pipe.

6. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 5, characterized in that, Maintenance ladders are installed on the side walls of both the backwash water tank and the denitrification filter.

7. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 1, characterized in that, It also includes a blower and a backwash pipe connected to the blower. The backwash pipe extends into the denitrification filter and is located below the filter plate layer. The outlet of the backwash pipe is arranged upward toward the filter plate layer.

8. The user-friendly small-scale sulfur autotrophic denitrification equipment according to claim 1, characterized in that, It also includes a mounting bracket, on which the hook is provided.

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