Intelligent ph adjusting device for landfill leachate

Abstract

The utility model provides garbage percolate's intelligent pH adjusting equipment, include: percolate delivery pipeline and be used for adjusting the adjusting assembly of pH, adjusting assembly is connected in percolate delivery pipeline downstream section outer surface, percolate delivery pipeline one end is equipped with the shunt pipe, and the both ends of shunt pipe are liquid inlet and liquid outlet respectively, and liquid inlet and liquid outlet are connected in percolate delivery pipeline's upstream and downstream respectively, and the liquid inlet of shunt pipe is installed with the shunt valve, and its liquid outlet is installed with the check valve. Linear cylinder drives pH sensor probe to extend downward, contacts percolate in shunt pipe, real -time collection pH value signal and transmission to adjusting assembly, through linear cylinder can draw back and reduce the corrosion length of time, avoid frequently replacing, through check valve can avoid liquid to remain in shunt pipe, then through adjusting assembly injects into percolate delivery pipeline in medicament, can shorten the reaction time.

Description

Technical Field

[0001] This utility model relates to the field of leachate treatment technology, specifically to an intelligent pH adjustment device for landfill leachate. Background Technology

[0002] Landfill leachate is a highly concentrated organic wastewater formed from the moisture contained in the landfill itself, rainwater and snowmelt entering the landfill, and other moisture, after deducting the saturated water holding capacity of the landfill and the topsoil layer, and passing through the landfill and topsoil layers. Landfill leachate is usually strongly acidic or may become alkaline later, and its composition is complex and highly variable.

[0003] For example, the national authorized patent announcement number CN206168070U discloses a leachate treatment system. It includes a collection tank, a sedimentation tank connected to the rear of the collection tank, a filtration tank connected to the rear of the sedimentation tank, a spraying device connected to the rear of the filtration tank, a combustion chamber connected to the rear of the spraying device, and a regulating tank connected to the rear of the combustion chamber. This invention, through the effective combination of these devices, achieves effective treatment of leachate, reduces environmental pollution, and features a simple structure and low treatment cost. Practical use has yielded excellent technical results.

[0004] However, most current leachate treatment systems lack effective pH adjustment mechanisms, which can cause pH fluctuations in the leachate. This can disrupt the stability of colloidal particles or suspended matter, leading to faster filter media clogging, requiring frequent backwashing, and increasing energy consumption and filter media wear. Utility Model Content

[0005] This invention aims to solve the problems mentioned in the background art by providing an intelligent pH adjustment device for landfill leachate.

[0006] The specific technical solution is as follows: An intelligent pH adjustment device for landfill leachate includes: a leachate conveying pipeline and an adjustment component for adjusting pH. The adjustment component is connected to the outer surface of a downstream section of the leachate conveying pipeline. One end of the leachate conveying pipeline is provided with a diversion pipe, with an inlet and an outlet at each end. The inlet and outlet are respectively connected to the upstream and downstream of the leachate conveying pipeline. A diversion valve is installed at the inlet of the diversion pipe, and a check valve is installed at its outlet.

[0007] As a preferred embodiment of this utility model, the upper surface of the middle section of the diversion pipe is connected to a connecting pipe, and a hollow ring is installed inside the connecting pipe within the diversion pipe. The hollow ring is used to prevent leachate from flowing upward from the diversion pipe into the connecting pipe.

[0008] As a preferred embodiment of this utility model, support blocks are respectively attached to both ends of the lower surface of the diverter. The support blocks are M-shaped. The upper surfaces of the two support blocks are respectively connected to collars by bolts. The two collars are respectively attached to one end of the outer surface of the diverter. Connecting plates are respectively installed on the upper surfaces of the two collars.

[0009] As a preferred embodiment of this utility model, a horizontal plate is provided between the two connecting plates. The horizontal plate is located at the upper end of the connecting pipe, and a through hole is provided on the upper surface of the horizontal plate. A linear cylinder is installed on the upper surface of the horizontal plate.

[0010] As a preferred embodiment of this utility model, the extension end of the linear cylinder passes through the through hole, and the end is connected to a pH sensor probe via a flange. The pH sensor can extend into the connecting pipe through the extension end of the linear cylinder and contact the leachate in the diversion pipe.

[0011] In a preferred embodiment of this utility model, the regulating component includes a reagent tank located at the downstream section of the leachate conveying pipeline, and a controller is installed on one side of the surface of the reagent tank.

[0012] As a preferred embodiment of this utility model, the lower surface of the medicine tank is provided with a discharge port, the discharge port is connected to the inlet of a metering pump through a pipe, and the discharge port of the metering pump is connected to an inclined pipe.

[0013] As a preferred embodiment of this utility model, the other end of the inclined tube is connected to the surface of the leachate conveying pipe, and a spiral block is installed on the inner wall of the connection between the inclined tube and the leachate conveying pipe.

[0014] In a preferred embodiment of this utility model, the signal input terminal of the controller is electrically connected to the signal output terminal of the pH sensor, and the control output terminal of the controller is electrically connected to the control input terminal of the metering pump through a control signal line.

[0015] In a preferred embodiment of this utility model, the controller is model S7-200 SMART and the pH sensor is model PH800.

[0016] This utility model has the following beneficial effects: 1. The intelligent pH adjustment device for landfill leachate provided by this utility model, through the design of adjustment components, diversion pipes, and pH sensors, allows the leachate to flow from upstream to downstream along the leachate delivery pipeline. Then, by opening the diversion valve, some liquid enters the inlet of the diversion pipe. A linear cylinder then drives the pH sensor probe downwards, passing through a horizontal plate through-hole, connecting pipe, and hollow ring to directly contact the leachate in the diversion pipe. The pH value signal is collected in real time and transmitted to the adjustment component. The linear cylinder can pull the probe back to reduce corrosion time and avoid frequent replacements. A one-way valve prevents liquid from remaining in the diversion pipe. Finally, the adjustment component injects the reagent into the leachate delivery pipeline, shortening the reaction time and improving the adjustment response speed. Furthermore, the M-shaped support block provides stable support and reduces the impact of vibration on detection accuracy.

[0017] 2. The intelligent pH adjustment device for landfill leachate provided by this utility model, through the design of a reagent tank, controller, and spiral block, calculates the required dosage of reagent after the controller receives the detection signal from the pH sensor, and controls the metering pump to draw reagent from the reagent tank, which can avoid excessive or insufficient reagent and reduce reagent waste. Then, it is injected into the leachate delivery pipeline through the inclined tube. The spiral block in the inclined tube promotes turbulent mixing of reagent and leachate, quickly completes pH adjustment, avoids local pH fluctuations, ensures stable overall adjustment effect, avoids agglomeration and clogging of filter media, reduces backwashing frequency, and reduces energy consumption and filter media wear. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an intelligent pH adjustment device for landfill leachate provided in an embodiment of this utility model. Figure 1 ; Figure 2 Schematic diagram of the diversion pipe structure of the intelligent pH adjustment device for landfill leachate provided in this embodiment of the utility model. Figure 2 ; Figure 3 A schematic diagram of the pH sensor structure of the intelligent pH adjustment device for landfill leachate provided in this embodiment of the utility model. Figure 3 ; Figure 4 Schematic diagram of the regulating component structure of the intelligent pH regulating device for landfill leachate provided in this embodiment of the utility model. Figure 4 .

[0019] In the attached image: 1. Leachate delivery pipeline; 2. Adjustment components; 201. Chemical tank; 202. Controller; 203. Metering pump; 204. Inclined tube; 205. Spiral block; 3. Diverter pipe; 301. Connecting pipe; 302. Diverter valve; 303. Check valve; 304. Hollow ring; 4. Collar; 401. Support block; 402. Connecting plate; 403. Horizontal plate; 404. Linear cylinder; 405. pH sensor. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1 The intelligent pH adjustment device for landfill leachate provided in this embodiment, such as... Figures 1-4As shown, the system includes: a leachate conveying pipe 1 and a pH adjustment component 2. The adjustment component 2 is connected to the outer surface of the downstream section of the leachate conveying pipe 1. One end of the leachate conveying pipe 1 is provided with a diversion pipe 3, with an inlet and an outlet at each end. The inlet and outlet are connected to the upstream and downstream of the leachate conveying pipe 1, respectively. A diversion valve 302 is installed at the inlet of the diversion pipe 3, and a check valve 303 is installed at its outlet. A connecting pipe 301 is connected to the upper surface of the middle section of the diversion pipe 3. A hollow ring 304 is installed inside the connecting pipe 301, located within the diversion pipe 3. The hollow ring 304 is used to prevent leachate from flowing upward from the diversion pipe 3 into the connecting pipe 301. Support blocks 401, M-shaped, are attached to both ends of the lower surface of the diversion pipe 3. Two collars 401 are bolted to the upper surfaces of the two support blocks 401, and each collar 4 is attached to one end of the outer surface of the diversion pipe 3. Connecting plates 402 are mounted on the upper surfaces of the two collars 4. A horizontal plate 403 is located between the two connecting plates 402, above the connecting pipe 301. A through hole is provided on the upper surface of the horizontal plate 403, and a linear cylinder 404 is mounted on its upper surface. The extension end of the linear cylinder 404 passes through the through hole, and a pH sensor 405 probe is connected to its end via a flange. The pH sensor 405 can extend into the connecting pipe 301 through the extension end of the linear cylinder 404 to contact the leachate in the diversion pipe 3.

[0025] By adjusting the design of component 2, diversion pipe 3, and pH sensor 405, the leachate flows from upstream to downstream along the leachate delivery pipe 1. Then, by opening the diversion valve 302, some liquid enters the inlet of the diversion pipe 3. Subsequently, the linear cylinder 404 drives the pH sensor 405 probe to extend downward, passing through the through hole of the horizontal plate 403, the connecting pipe 301, and the hollow ring 304 in sequence, directly contacting the leachate in the diversion pipe 3. The pH value signal is collected in real time and transmitted to the adjustment component 2. The linear cylinder 404 can pull it back to reduce corrosion time and avoid frequent replacement. The one-way valve 303 can prevent the liquid from remaining in the diversion pipe 3. Then, the adjustment component 2 injects the reagent into the leachate delivery pipe 1, which can shorten the reaction time and improve the adjustment response speed. In addition, the M-shaped support block 401 can provide stable support and reduce the impact of vibration on the detection accuracy.

[0026] Example 2 The intelligent pH adjustment device for landfill leachate provided in this embodiment, such as... Figures 2-4As shown, the system includes: Adjustment component 2 comprising a reagent tank 201, located downstream of the leachate conveying pipeline 1. A controller 202 is mounted on one side of the reagent tank 201. The lower surface of the reagent tank 201 has a discharge port, which is connected via a pipe to the inlet of a metering pump 203. The discharge port of the metering pump 203 is connected to an inclined tube 204. The other end of the inclined tube 204 is connected to the surface of the leachate conveying pipeline 1, and a spiral block 205 is installed on the inner wall of the connection point between the inclined tube 204 and the leachate conveying pipeline 1. The signal input terminal of the controller 202 is electrically connected to the signal output terminal of a pH sensor 405, and the control output terminal of the controller 202 is electrically connected to the control input terminal of the metering pump 203 via a control signal line. The controller 202 is an S7-200 SMART, and the pH sensor 405 is a PH800.

[0027] Through the design of the reagent tank 201, controller 202, and spiral block 205, after the controller 202 receives the detection signal from the pH sensor 405, it calculates the required dosage and controls the metering pump 203 to draw the reagent from the reagent tank 201. This avoids excessive or insufficient reagent and reduces reagent waste. The reagent is then injected into the leachate delivery pipeline 1 through the inclined tube 204. The spiral block 205 in the inclined tube 204 promotes turbulent mixing of the reagent and leachate, quickly completing pH adjustment, avoiding local pH fluctuations, ensuring stable overall adjustment effect, preventing agglomeration and clogging of filter media, reducing backwashing frequency, and reducing energy consumption and filter media wear.

[0028] In summary, the intelligent pH adjustment device for landfill leachate provided in this embodiment has the following advantages: the pH sensor 405 monitors in real time, and the controller 202 and the metering pump 203 accurately add a stable pH value within a reasonable range, controlling the pH to a suitable range away from drastic fluctuations and the isoelectric point, maximizing the dispersion of colloidal particles and reducing agglomeration.

[0029] In use, the leachate flows from upstream to downstream along the leachate delivery pipe 1. Then, by opening the diversion valve 302, some liquid enters the inlet in the diversion pipe 3. Subsequently, the linear cylinder 404 drives the pH sensor 405 probe to extend downward, passing through the through hole of the horizontal plate 403, the connecting pipe 301, and the hollow ring 304 in sequence, directly contacting the leachate in the diversion pipe 3. The pH value signal is collected in real time and transmitted to the controller 202. After receiving the detection signal from the pH sensor 405, the controller 202 calculates the required dosage and controls the metering pump 203 to draw the agent from the agent tank 201. The agent is then injected into the leachate delivery pipe 1 through the inclined tube 204. The spiral block 205 in the inclined tube 204 promotes turbulent mixing of the agent and the leachate, avoiding agglomeration and clogging of the filter media, reducing the number of backwashings, and reducing energy consumption and filter media wear.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intelligent pH adjustment device for landfill leachate, characterized in that, include: The leachate conveying pipeline (1) and the pH adjustment component (2) are connected to the outer surface of the downstream section of the leachate conveying pipeline (1). One end of the leachate conveying pipeline (1) is provided with a diversion pipe (3). The two ends of the diversion pipe (3) are the inlet and the outlet, respectively. The inlet and the outlet are connected to the upstream and downstream of the leachate conveying pipeline (1), respectively. A diversion valve (302) is installed at the inlet of the diversion pipe (3), and a check valve (303) is installed at its outlet.

2. The intelligent pH adjustment device for landfill leachate according to claim 1, characterized in that, The upper surface of the middle section of the diversion pipe (3) is connected to a connecting pipe (301). A hollow ring (304) is installed inside the connecting pipe (301) inside the diversion pipe (3). The hollow ring (304) is used to prevent leachate from flowing upward from the diversion pipe (3) into the connecting pipe (301).

3. The intelligent pH adjustment device for landfill leachate according to claim 2, characterized in that, The two ends of the lower surface of the diversion pipe (3) are respectively attached to support blocks (401). The support blocks (401) are M-shaped. The upper surfaces of the two support blocks (401) are respectively connected to collars (4) by bolts. The two collars (4) are respectively attached to one end of the outer surface of the diversion pipe (3). The upper surfaces of the two collars (4) are respectively equipped with connecting plates (402).

4. The intelligent pH adjustment device for landfill leachate according to claim 3, characterized in that, A horizontal plate (403) is provided between the two connecting plates (402). The horizontal plate (403) is located at the upper end of the connecting pipe (301). The upper surface of the horizontal plate (403) is provided with a through hole. A linear cylinder (404) is installed on the upper surface of the horizontal plate (403).

5. The intelligent pH adjustment device for landfill leachate according to claim 4, characterized in that, The extension end of the linear cylinder (404) passes through the through hole, and the end is connected to a pH sensor (405) probe via a flange. The pH sensor (405) can extend into the connecting pipe (301) through the extension end of the linear cylinder (404) and contact the leachate in the diversion pipe (3).

6. The intelligent pH adjustment device for landfill leachate according to claim 1, characterized in that, The regulating component (2) includes a reagent tank (201) located downstream of the leachate conveying pipeline (1), and a controller (202) is installed on one side of the surface of the reagent tank (201).

7. The intelligent pH adjustment device for landfill leachate according to claim 6, characterized in that, The lower surface of the medicine tank (201) is provided with a discharge port, which is connected to the inlet of a metering pump (203) through a pipe, and the discharge port of the metering pump (203) is connected to an inclined pipe (204).

8. The intelligent pH adjustment device for landfill leachate according to claim 7, characterized in that, The other end of the inclined tube (204) is connected to the surface of the leachate conveying pipe (1), and a spiral block (205) is installed on the inner wall of the connection between the inclined tube (204) and the leachate conveying pipe (1).

9. The intelligent pH adjustment device for landfill leachate according to claim 7, characterized in that, The signal input terminal of the controller (202) is electrically connected to the signal output terminal of the pH sensor (405), and the control output terminal of the controller (202) is electrically connected to the control input terminal of the metering pump (203) through a control signal line.

10. The intelligent pH adjustment device for landfill leachate according to claim 9, characterized in that, The controller (202) is model S7-200 SMART, and the pH sensor (405) is model PH800.

Images