Garbage power generation leachate treatment device

By atomizing concentrated water in a waste incinerator and combining it with stirring and heating, the problem of high leachate treatment costs has been solved, achieving efficient and low-cost leachate treatment.

CN223509678UActive Publication Date: 2025-11-04ZHEJIANG ZHUJI BAFANG THERMAL POWER CO LTD
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Patent Information

Application Number
CN202422682049.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-11-04
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

In existing waste-to-energy incineration processes, leachate treatment is costly, and the concentrated leachate after treatment is even more expensive to treat through evaporation and crystallization or by sending it to municipal wastewater treatment plants, making it difficult to treat effectively.

Method used

A water pump is used to atomize and spray concentrated water into the waste incinerator. Combined with a stirring structure and a gas supply system, the high temperature of the incinerator is used to carry out a process similar to evaporation and crystallization. The stirring and heating action of the stirring blades prevents the concentrated water from settling and improves the treatment efficiency.

Benefits of technology

It achieves efficient treatment of leachate, reduces treatment costs, and further minimizes the impact on incinerator temperature through stirring and heating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a garbage power generation leachate treatment device, which relates to the technical field of leachate treatment and comprises a storage box, mounting racks are fixedly arranged on the outer walls of two sides of the storage box, bolt holes are formed in each group of mounting racks, water injection ports are further formed in the outer walls of two sides of the storage box, and the water injection ports are communicated with the mounting racks. The bottom of the storage box is fixedly connected with a supporting plate extending towards the outer side, a water pump is installed on the end face of the supporting plate, the input end of the water pump communicates with a water inlet pipe extending into the storage box, and the output end of the water pump communicates with a water outlet pipe. And atomizing nozzles are mounted at the end parts of each group of water supply pipes. The water pump and the atomizing nozzle are arranged, the water pump is used for spraying concentrated water into the garbage incinerator in an atomizing mode, the concentrated water is treated through the high temperature of the incinerator, and cost is effectively saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to leachate treatment technical field, concretely is a kind of waste power generation leachate treatment device. BACKGROUND

[0002] Garbage incineration can destroy various pathogens, convert harmful substances into harmless substances, and generate heat while incinerating garbage, achieving multiple purposes at once. The existing garbage combustion power generation utilizes the heat generated by garbage combustion to vaporize water in a water tank, and uses the vaporized water to drive a steam turbine to generate electricity.

[0003] Under normal circumstances, when using municipal solid waste incineration to generate electricity, the incinerator has certain requirements for the calorific value of the incoming garbage. In most parts of China, the moisture content of incoming raw municipal solid waste is high, and the calorific value is low, which cannot meet the requirements of the incinerator. Therefore, it is necessary to properly treat the raw municipal solid waste to remove water from the garbage and improve its calorific value, so that it can be stably ignited and burned in the incinerator. The current common treatment method is to ferment the municipal solid waste in a garbage pit for 5-7 days. After the garbage in the garbage pit is fermented, the leachate generated by the garbage in the garbage pit is collected and sent to a leachate treatment station. The leachate treated by the "regulating tank + UASB + A / O + MBR + nanofiltration" process will produce about 20% of nanofiltration concentrated water.

[0004] Currently, nanofiltration concentrated water is treated by evaporation crystallization process or by pulling municipal sewage treatment station, which is costly. Therefore, we propose a waste power generation leachate treatment device. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims to provide a waste power generation leachate treatment device to solve the technical problems mentioned in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waste power generation leachate treatment device, comprising a storage tank, the two side outer walls of the storage tank are fixedly provided with mounting brackets, and a bolt hole is formed in each group of mounting brackets, the two side outer walls of the storage tank are also provided with a water inlet to add materials inside the storage tank, the bottom of the storage tank is fixedly connected with a support plate extending outward, and a water pump is installed on the end face of the support plate, the input end of the water pump is connected with a water inlet pipe extending into the storage tank, and the output end of the water pump is connected with a water outlet pipe, the end of the water outlet pipe is connected with a water distribution plate, and the other end face of the water distribution plate is connected with a plurality of water supply pipes extending outward, and each group of water supply pipes is provided with an atomizing nozzle at the end.

[0007] By adopting the above technical solution, concentrated water is sprayed into the waste incinerator in an atomized manner using a water pump, and the concentrated water is treated by the high temperature of the incinerator, which effectively saves costs.

[0008] The present invention is further configured such that a stirring structure is installed inside the storage box to stir the material inside the storage box. The stirring structure includes multiple sets of stirring shafts spaced apart inside the storage box, and multiple sets of annularly distributed stirring blades are installed on the outer wall of each set of stirring shafts.

[0009] By adopting the above technical solution, the concentrated water in the storage tank can be stirred.

[0010] The present invention is further configured such that a drive structure for driving the stirring shaft is provided at the top of the storage box. The drive structure includes a power box installed at the top of the storage box, and a drive motor is installed at the top of the power box. The top of each set of stirring shafts extends into the power box. A drive sprocket is installed at the center of the power box, and driven sprockets are installed on both sides of the drive sprocket. A chain connects the drive sprocket and the two sets of driven sprockets. The drive sprocket and the two sets of driven sprockets are synchronously connected to a set of stirring shafts respectively.

[0011] By adopting the above technical solution, the driving effect of multiple sets of stirring shafts is achieved.

[0012] The present invention is further configured such that an air inlet pipe is sleeved in the stirring shaft, and the end of the air inlet pipe extends from the bottom end of the stirring shaft to the outside and is connected to the external air supply system through a rotary joint. An air chamber is opened in the stirring blade, and a connecting pipe is installed between the air chamber and the air inlet pipe.

[0013] By adopting the above technical solution, the air chamber is supplied with air.

[0014] In summary, the present invention has the following main advantages:

[0015] 1. This utility model, by setting up a water pump, atomizing nozzles, and a storage tank, firstly stores the concentrated water produced from the leachate treatment in the storage tank. Then, the water pump is started, and the water pump draws the concentrated water from the storage tank into the water distribution plate. At this time, multiple water supply pipes draw concentrated water from the water distribution plate to supply the atomizing nozzles. Subsequently, the atomizing nozzles spray the concentrated water into the waste incinerator in the form of water mist. The high temperature of the incinerator is used to treat the concentrated water in a manner similar to evaporation and crystallization treatment, which not only achieves the same treatment effect but also saves a lot of costs.

[0016] 2. This utility model, by setting up a stirring structure, a driving structure, and an air supply structure, simultaneously draws concentrated water for atomization and spraying, and starts the drive motor. The drive motor drives the drive sprocket to rotate, which in turn drives the driven sprocket to rotate via a chain. At this time, multiple sets of stirring shafts start to rotate and synchronously drive the stirring blades to rotate, thereby achieving a stirring effect on the concentrated water and preventing the solute in the concentrated water from precipitating downwards, which would lead to poor concentrated water treatment effect. Furthermore, during the stirring process of the stirring blades, hot air is provided to the air inlet pipe through an external air supply system. The hot air in the air inlet pipe is introduced into the air chamber of the stirring blades through a connecting pipe, so that the stirring blades have a certain temperature. Therefore, the stirring of the stirring blades also has a heating effect on the concentrated water, so that the atomized concentrated water also has a certain temperature, thereby further reducing the impact on the internal temperature of the incinerator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the driving structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the gas supply structure of this utility model.

[0021] In the diagram: 1. Storage box; 2. Mounting frame; 3. Water inlet; 4. Support plate; 5. Water pump; 6. Inlet pipe; 7. Outlet pipe; 8. Water distribution plate; 9. Water supply pipe; 10. Atomizing nozzle; 11. Power box; 12. Drive motor; 13. Stirring shaft; 14. Stirring blade; 15. Drive sprocket; 16. Driven sprocket; 17. Chain; 18. Air chamber; 19. Air inlet pipe; 20. Connecting pipe. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The embodiments of this utility model will be described below based on its overall structure.

[0024] A waste-to-energy leachate treatment device, such as Figures 1-4As shown, the storage box 1 is provided with mounting brackets 2 fixedly installed on both outer walls of the storage box 1, and each mounting bracket 2 has bolt holes. Water inlets 3 are also provided on both outer walls of the storage box 1 to add materials inside the storage box 1. A support plate 4 extending outward is fixedly connected to the bottom of the storage box 1, and a water pump 5 is installed on the end face of the support plate 4. The input end of the water pump 5 is connected to a water inlet pipe 6 extending into the storage box 1, and the output end of the water pump 5 is connected to a water outlet pipe 7. The end of the water outlet pipe 7 is connected to a water distribution plate 8, and the other end face of the water distribution plate 8 is connected to multiple sets of water supply pipes extending outward, and each set of water supply pipes 9 is equipped with an atomizing nozzle 10.

[0025] Furthermore, in this embodiment, a stirring structure is installed inside the storage tank 1 to stir the material inside the storage tank 1. The stirring structure includes multiple sets of stirring shafts 13 with spacing inside the storage tank 1, and multiple sets of annularly distributed stirring blades 14 are installed on the outer wall of each set of stirring shafts 13.

[0026] Please see Figures 2-3 The storage tank 1 is provided with a drive structure for driving the stirring shaft 13. The drive structure includes a power box 11 installed on the top of the storage tank 1, and a drive motor 12 is installed on the top of the power box 11. The top of each set of stirring shafts 13 extends into the power box 11. A drive sprocket 15 is installed at the center of the power box 11, and driven sprockets 16 are installed on both sides of the drive sprocket 15. A chain 17 connects the drive sprocket 15 and the two sets of driven sprockets 16. The drive sprocket 15 and the two sets of driven sprockets 16 are synchronously connected to a set of stirring shafts 13, so as to realize the function of one drive motor 12 driving multiple sets of stirring shafts 14.

[0027] Please see Figure 4 An air inlet pipe 19 is sleeved in the stirring shaft 13, and the end of the air inlet pipe 19 extends from the bottom end of the stirring shaft 13 to the outside and is connected to the external air supply system through a rotary joint. An air chamber 18 is opened in the stirring blade 14, and a connecting pipe 20 is installed between the air chamber 18 and the air inlet pipe 19 to provide an air source for the stirring blade 14.

[0028] The working principle of this utility model is as follows: First, the concentrated water produced by the treatment of landfill leachate is stored in the storage tank 1. Then, the water pump 5 is started, and the water pump 5 will draw the concentrated water from the storage tank 1 to the water distribution plate 8. At this time, multiple sets of water supply pipes 9 will draw concentrated water from the water distribution plate 8 to supply the atomizing nozzles 10. Then, the atomizing nozzles 10 will spray the concentrated water into the landfill in the form of water mist. The high temperature of the incinerator is used to treat the concentrated water in a manner similar to evaporation and crystallization treatment. This not only achieves the same treatment effect, but also saves a lot of costs.

[0029] Furthermore, while the concentrated water is extracted and atomized, the drive motor 12 is started. The drive motor 12 drives the drive sprocket 15 to rotate, and the drive sprocket 15 then drives the driven sprocket 16 to rotate through the chain 17. At this time, multiple sets of stirring shafts 13 start to rotate and synchronously drive the stirring blades 14 to rotate, thereby achieving the stirring effect of the concentrated water and preventing the solute in the concentrated water from precipitating downwards, which would lead to poor concentrated water treatment effect.

[0030] In addition, during the rotation and stirring of the stirring blade 14, hot air is supplied to the air inlet pipe 19 through the external air supply system. The hot air in the air inlet pipe is introduced into the air chamber 18 of the stirring blade 14 through the connecting pipe 20, so that the stirring blade 14 has a certain temperature. Therefore, the stirring of the stirring blade 14 also has the effect of heating the concentrated water, so that the atomized concentrated water also has a certain temperature, thereby further reducing the impact on the internal temperature of the incinerator.

[0031] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A waste-to-energy leachate treatment device, comprising a storage tank (1), characterized in that: The storage box (1) is fixedly provided with mounting brackets (2) on both sides of the outer wall, and each set of mounting brackets (2) is provided with bolt holes. The storage box (1) is also provided with water inlets (3) on both sides of the outer wall to realize the filling of materials inside the storage box (1). The bottom of the storage box (1) is fixedly connected with a support plate (4) extending outward, and a water pump (5) is installed on the end face of the support plate (4). The input end of the water pump (5) is connected to a water inlet pipe (6) extending into the storage box (1), and the output end of the water pump (5) is connected to a water outlet pipe (7). The end of the water outlet pipe (7) is connected to a water distribution plate (8), and the other end face of the water distribution plate (8) is connected to multiple sets of water supply pipes extending outward, and each set of water supply pipes (9) is provided with an atomizing nozzle (10) at the end.

2. The waste-to-energy leachate treatment device according to claim 1, characterized in that: The storage tank (1) is equipped with a stirring structure to stir the materials inside the storage tank (1).

3. The waste-to-energy leachate treatment device according to claim 2, characterized in that: The stirring structure includes multiple sets of stirring shafts (13) spaced apart and installed inside the storage tank (1), and multiple sets of annularly distributed stirring blades (14) are installed on the outer wall of each set of stirring shafts (13).

4. The waste-to-energy leachate treatment device according to claim 3, characterized in that: The top of the storage tank (1) is provided with a drive structure for driving the stirring shaft (13) to run.

5. The waste-to-energy leachate treatment device according to claim 4, characterized in that: The drive structure includes a power box (11) installed on the top of the storage box (1), and a drive motor (12) is installed on the top of the power box (11). The top of each set of stirring shafts (13) extends into the power box (11).

6. The waste-to-energy leachate treatment device according to claim 5, characterized in that: A drive sprocket (15) is installed at the center of the power box (11), and driven sprockets (16) are installed on both sides of the drive sprocket (15). A chain (17) connects the drive sprocket (15) and the two sets of driven sprockets (16). The drive sprocket (15) and the two sets of driven sprockets (16) are synchronously connected to a set of stirring shafts (13).

7. The waste-to-energy leachate treatment device according to claim 3, characterized in that: An air inlet pipe (19) is sleeved in the stirring shaft (13), and the end of the air inlet pipe (19) extends from the bottom end of the stirring shaft (13) to the outside and is connected to the outside air supply system through a rotary joint. An air chamber (18) is opened in the stirring blade (14), and a connecting pipe (20) is installed between the air chamber (18) and the air inlet pipe (19).