Environment-friendly treatment device for waste incineration residues

Abstract

The application discloses an environment-friendly treatment device for waste incineration residues, and relates to the technical field of waste incineration treatment. The application comprises: a curing bin, which is provided with a feeding port and a discharging mechanism, the discharging mechanism can discharge leachate and bottom ash respectively; a stirring mechanism, a spraying mechanism and a ventilation mechanism, which are all arranged in the curing bin, the stirring mechanism can stir the bottom ash, the spraying mechanism can spray conditioning water to the stirring bottom ash, and the ventilation mechanism can send air into the curing bin and discharge humid gas. The application can stir the bottom ash through the stirring mechanism, break the clumps, make the bottom ash fully contact with water and air, make the reaction more uniform, greatly shorten the curing period, relatively close the whole process, reduce the dust dispersion problem and the pollution to the surrounding atmospheric environment, can effectively collect the leachate and introduce the leachate into a sewage treatment equipment, avoid secondary pollution, send air through the side wall and draw air through the top, and form an air flow from bottom to top in the curing bin.

Description

Technical Field

[0001] This application relates to the field of waste incineration technology, specifically to an environmentally friendly treatment device for waste incineration residue. Background Technology

[0002] The residue produced after waste incineration is mainly divided into two categories: bottom ash and fly ash. Bottom ash is the solid residue left on the grate of the incinerator after combustion. It accounts for the largest proportion of the waste incineration residue, about 80-90% of the total volume. Fly ash is the fine particulate matter captured by the flue gas purification system (such as bag filter, scrubbing tower, etc.). When bottom ash is treated for environmental protection, it needs to be aged to allow the metal components in it to fully react with water, reduce the temperature and alkalinity, so as to achieve the purpose of stabilization. Currently, common aging methods are mostly open-air stacking or simple storage, which have significant drawbacks: First, the aging efficiency is low, the reaction is uneven, it relies on natural reactions, and the aging cycle is long; Second, open-air stacking leads to dust dispersion, polluting the surrounding atmospheric environment; Third, if the leachate generated during the aging process is not collected properly, it will cause secondary pollution of soil and groundwater; Fourth, natural stacking has poor ventilation and slow heat dissipation, which easily forms reaction dead zones, resulting in inconsistent overall aging effects. Therefore, an environmentally friendly treatment device for waste incineration residue is proposed. Utility Model Content

[0003] The purpose of this application is to address the significant drawbacks of current common aging methods, which mostly involve open-air stacking or simple storage: 1. Low aging efficiency, uneven reaction, reliance on natural reactions, and long aging cycles; 2. Open-air stacking leads to dust dispersion, polluting the surrounding atmospheric environment; 3. Improper collection of leachate generated during the aging process can cause secondary pollution of soil and groundwater; 4. Poor ventilation and slow heat dissipation under natural stacking can easily create reaction dead zones, resulting in inconsistent overall aging effects. This application provides an environmentally friendly treatment device for waste incineration residue.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution: An environmentally friendly treatment device for waste incineration residue includes: The aging chamber is equipped with a feed inlet and a discharge mechanism, which can discharge leachate and bottom ash separately. The agitation mechanism, spraying mechanism, and ventilation mechanism are all located inside the aging chamber. The agitation mechanism can agitate the bottom ash, the spraying mechanism can spray conditioning water onto the agitated bottom ash, and the ventilation mechanism can introduce air into the aging chamber and expel humid gas.

[0005] Furthermore, the discharge mechanism includes a main pipe, a branch pipe, a filter plate, and a valve. One end of the main pipe is connected to the bottom of the aging chamber, and the other end is connected to the sewage treatment equipment. The branch pipe is inclined and connected to the main pipe. The filter plate is inclinedly installed inside the main pipe, and the valve is installed on the branch pipe.

[0006] Furthermore, the stirring mechanism includes a drive motor, a rotating frame, a first stirring rod, and a second stirring rod. The drive motor is mounted on the aging chamber, the free end of the rotating frame is connected to the output shaft of the drive motor, and both the first and second stirring rods are mounted on the rotating frame.

[0007] Furthermore, an internal gear ring is provided inside the aging chamber, and a first stirring rod is rotatably mounted on a rotating frame. A fixed gear that meshes with the internal gear ring is provided on the first stirring rod.

[0008] Furthermore, the aging chamber is constructed with a receiving cavity, and the rotating frame rotates to close the receiving cavity. The fixed gear and the internal gear ring are both located inside the receiving cavity.

[0009] Furthermore, it also includes a fixed cylinder and a spiral conveyor rod. The fixed cylinder is installed inside the aging chamber, and the spiral conveyor rod is installed inside the fixed cylinder with one end connected to the rotating frame and the other end of the spiral conveyor rod extending into the main pipe.

[0010] Furthermore, the spraying mechanism includes a spray ring pipe and multiple spray pipes, the free end of the spray pipes being connected to a water supply device, and all multiple spray pipes being connected to the spray ring pipe.

[0011] Furthermore, the aging chamber is constructed with an annular cavity with a conical cross-section. The ventilation mechanism includes an air outlet pipe, an air inlet ring pipe located within the annular cavity, multiple air inlet pipes, and a filter ring plate. The free end of the air outlet pipe is connected to the exhaust gas treatment equipment, the free end of the air inlet ring pipe is connected to the air supply equipment, and the multiple air inlet pipes are all connected to the air inlet ring pipe.

[0012] The beneficial effects of this application are as follows: This application uses a stirring mechanism to stir the bottom ash, breaking up the clumps and allowing the bottom ash to fully contact with moisture and air, resulting in a more uniform reaction and significantly shortening the aging cycle. The entire process is relatively closed, reducing dust emission and pollution to the surrounding atmospheric environment. It can effectively collect leachate and introduce it into the sewage treatment equipment to avoid secondary pollution. Through side wall air supply and top air intake, an upward airflow is formed in the aging chamber, which accelerates the cooling of the bottom ash and carries away the gases generated by the reaction, avoiding local overheating and the formation of dead corners, thus improving the aging quality and safety. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural view of this application; Figure 2 This is a three-dimensional sectional view of this application; Figure 3This application Figure 2 Enlarged view of point A in the middle; Figure 4 This application Figure 2 Enlarged view of point B in the middle; Figure 5 This application Figure 2 Enlarged view of point C in the middle; Figure 6 This application Figure 2 Enlarged view of point D in the middle.

[0014] Reference numerals: 1. Aging chamber; 2. Feed inlet; 3. Main pipe; 4. Branch pipe; 5. Filter plate; 6. Drive motor; 7. Rotating frame; 8. First stirring rod; 9. Second stirring rod; 10. Internal gear ring; 11. Fixed gear; 12. Receiving cavity; 13. Fixed cylinder; 14. Screw conveyor rod; 15. Spray ring pipe; 16. Spray pipe; 17. Annular cavity; 18. Air inlet ring pipe; 19. Air inlet pipe; 20. Filter ring plate; 21. Valve; 22. Air outlet pipe. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0016] like Figures 1-6 As shown, an embodiment of this application discloses an environmentally friendly treatment device for waste incineration residue, comprising: The aging chamber 1 is equipped with a feed inlet 2 and a discharge mechanism. The aging chamber 1 is vertical and has a frustum-shaped structure. The feed inlet 2 is located on the side of the aging chamber 1 and near the top. The discharge mechanism is located at the bottom of the aging chamber 1 and can discharge leachate and bottom ash separately. The stirring mechanism, spraying mechanism and ventilation mechanism are all installed in the aging chamber 1. The stirring mechanism can stir the bottom ash, the spraying mechanism can spray conditioning water onto the stirring bottom ash, and the ventilation mechanism can introduce air into the aging chamber 1 and exhaust humid gas. During the aging process, the bottom ash is fed into the aging chamber 1 through inlet 2, and then inlet 2 is closed. In actual use, a control valve can be installed on inlet 2 to control its opening or closing. The bottom ash is then agitated by a stirring mechanism, while conditioning water is sprayed onto the agitated bottom ash through a spraying mechanism, ensuring full contact between the bottom ash and the conditioning water. After maintaining this for a period of time, the stirring and spraying mechanisms are stopped, and the chamber is left to stand for a while to allow the conditioning water to fully penetrate. Under the action of gravity, the conditioning water slowly penetrates from top to bottom and forms leachate. When the leachate reaches the bottom of the aging chamber 1, it is discharged through the discharge mechanism. The bottom ash is moist but without free water. The stirring mechanism is then restarted, and air is introduced into the aging chamber 1 through the ventilation mechanism while humid gas is discharged, accelerating the cooling of the bottom ash and removing the gases produced by the reaction. This process is repeated until aging is complete. Once aging is complete, the bottom ash is discharged through the discharge mechanism.

[0017] like Figure 6 As shown, the specific structure of the discharge mechanism of this application is disclosed. The discharge mechanism includes a main pipe 3, a branch pipe 4, a filter plate 5, and a valve 21. One end of the main pipe 3 is connected to the bottom of the aging chamber 1, and the other end is connected to the sewage treatment equipment. The main pipe 3 is vertical. The sewage treatment equipment is not shown in the attached drawings. The branch pipe 4 is inclined and connected to the main pipe 3. The filter plate 5 is inclinedly installed in the main pipe 3. The filter plate 5 is fixed in the main pipe 3 and located at the connection between the main pipe 3 and the branch pipe 4. The valve 21 is installed on the branch pipe 4 and is fixed on the branch pipe 4. Referring to the above, in the initial state, valve 21 is closed. When the leachate reaches the bottom of the aging chamber 1, it will pass through the main pipe 3 and eventually enter the sewage treatment equipment for treatment. The leachate and bottom ash are separated by the filter plate 5. The bottom ash cannot pass through the filter plate 5. After aging is completed, valve 21 is opened. The bottom ash first enters the main pipe 3, and then rolls down and is discharged along the inclined direction of the filter plate 5 and the branch pipe 4, so as to achieve the separate discharge of leachate and bottom ash.

[0018] like Figures 2-3 As shown, the specific structure of the stirring mechanism of this application is disclosed. The stirring mechanism includes a drive motor 6, a rotating frame 7, a first stirring rod 8, and a second stirring rod 9. The drive motor 6 is mounted on the aging chamber 1 and fixed on the aging chamber 1. The free end of the rotating frame 7 is connected to the output shaft of the drive motor 6. The rotating frame 7 and the aging chamber 1 are coaxially distributed and the top end is fixedly connected to the output shaft of the drive motor 6. The first stirring rod 8 and the second stirring rod 9 are both mounted on the rotating frame 7. The first stirring rod 8 and the second stirring rod 9 are both in the vertical direction. The second stirring rod 9 is fixed on the rotating frame 7. The first stirring rod 8 is mainly used to stir the bottom ash located in the cylindrical section, and the second stirring rod 9 is mainly used to stir the bottom ash located in the conical section. Referring to the above, when in use, the drive motor 6 is turned on, the output shaft rotates forward, and the rotating frame 7, the first stirring rod 8 and the second stirring rod 9 rotate together, and the bottom ash is stirred by the first stirring rod 8 and the second stirring rod 9 together.

[0019] like Figure 3 As shown, a further technical solution of this application is disclosed. An internal gear ring 10 is provided in the aging chamber 1. The internal gear ring 10 is coaxially fixed in the aging chamber 1. The first stirring rod 8 is rotatably mounted on the rotating frame 7. The axis of the first stirring rod 8 is vertical. A fixed gear 11 that meshes with the internal gear ring 10 is provided on the first stirring rod 8. The fixed gear 11 is coaxially fixed on the first stirring rod 8. Referring to the above, when the rotating frame 7 rotates, it drives the first stirring rod 8 to revolve together. During this process, through the meshing action of the fixed gear 11 and the internal gear ring 10, the first stirring rod 8 is driven to rotate on its own axis, so as to realize that the first stirring rod 8 rotates on its own axis while revolving around the center, thereby improving the stirring effect on the bottom ash.

[0020] like Figure 3 As shown, a further technical solution of this application is disclosed. The aging chamber 1 is constructed with a receiving cavity 12. The rotating frame 7 rotates and closes the receiving cavity 12. The fixed gear 11 and the internal gear ring 10 are both located inside the receiving cavity 12. Referring to the above, during use, by ensuring that both the fixed gear 11 and the internal gear ring 10 are located within the enclosed receiving cavity 12, the bottom ash escaping from the aging chamber 1 can be prevented from affecting the normal transmission of the fixed gear 11 and the internal gear ring 10, thereby improving the stability of use.

[0021] like Figure 6 As shown, a further technical solution of this application is disclosed, which also includes a fixed cylinder 13 and a spiral conveying rod 14. The fixed cylinder 13 is disposed in the aging chamber 1 and is coaxially fixed in the aging chamber 1. The bottom of the fixed cylinder 13 has an inlet and the top has an outlet. The spiral conveying rod 14 is disposed in the fixed cylinder 13 and one end is connected to the rotating frame 7. The spiral conveying rod 14 and the fixed cylinder 13 are coaxially distributed and the top end is fixedly connected to the top end of the rotating frame 7. The other end of the spiral conveying rod 14 extends into the main pipe 3 and the bottom end of the spiral conveying rod 14 extends into the main pipe 3. Referring to the above, when the rotating frame 7 rotates forward, it drives the screw conveyor 14 to rotate together. The bottom ash first enters the fixed cylinder 13 from the inlet, and then moves upward under the conveying action of the screw conveyor 14, and finally is discharged from the outlet, so as to realize the vertical circulation of the bottom ash and further improve the stirring effect.

[0022] like Figures 3-4As shown, the specific structure of the spraying mechanism of this application is disclosed. The spraying mechanism includes a spray ring pipe 15 and a plurality of spray pipes 16. The free end of the spray pipe 16 is connected to the water supply equipment. The spray ring pipe 15 and the aging chamber 1 are coaxially distributed. The water supply equipment is not shown in the attached drawings of the specification. The plurality of spray pipes 16 are all connected to the spray ring pipe 15 and the plurality of spray pipes 16 are evenly distributed. Referring to the above, during use, conditioning water is supplied into the spray ring pipe 15 through the water supply equipment. The conditioning water is divided into multiple streams and sprayed out onto the bottom ash through multiple spray pipes 16, so as to spray conditioning water onto the bottom ash that is turning over.

[0023] like Figure 5 As shown, the specific structure of the ventilation mechanism of this application is disclosed. The aging chamber 1 is constructed with an annular cavity 17 with a conical cross section. The annular cavity 17 and the aging chamber 1 are coaxially distributed. The ventilation mechanism includes an air outlet pipe 22, an air inlet ring pipe 18 located in the annular cavity 17, multiple air inlet pipes 19, and a filter ring plate 20. The free end of the air outlet pipe 22 is connected to the exhaust gas treatment equipment, and the free end of the air inlet ring pipe 18 is connected to the air supply equipment. The air inlet ring pipe 18 and the annular cavity 17 are coaxially distributed. The filter ring plate 20 is fixed in the annular cavity 17 and the two are coaxially distributed. The multiple air inlet pipes 19 are all connected to the air inlet ring pipe 18 and are evenly distributed. The exhaust gas treatment equipment and the air supply equipment are not shown in the accompanying drawings. Referring to the above, during use, air is supplied to the air inlet ring pipe 18 through the air supply equipment. The air is split into multiple streams and blown out onto the bottom ash through multiple air inlet pipes 19. The filter ring plate 20 can prevent the bottom ash from adhering to the air inlet ring pipe 18 and the air inlet pipe 19, thereby avoiding blockage. Even if a small amount of leachate passes through the filter ring plate 20 and enters the annular cavity 17, the shape design of the annular cavity 17 can also prevent leachate residue. Afterwards, the humid gas enters the exhaust gas treatment equipment through the exhaust pipe 22 for treatment, so as to realize the supply of air into the aging chamber 1 and the discharge of humid gas.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An environmentally friendly treatment device for waste incineration residue, characterized in that, include: The aging chamber (1) is equipped with a feed inlet (2) and a discharge mechanism, which can discharge leachate and bottom ash separately. The stirring mechanism, spraying mechanism and ventilation mechanism are all installed in the aging chamber (1). The stirring mechanism can stir the bottom ash, the spraying mechanism can spray conditioning water onto the stirring bottom ash, and the ventilation mechanism can send air into the aging chamber (1) and discharge humid gas.

2. The environmental protection treatment device for waste incineration residue according to claim 1, characterized in that, The discharge mechanism includes a main pipe (3), a branch pipe (4), a filter plate (5), and a valve (21). One end of the main pipe (3) is connected to the bottom of the aging chamber (1), and the other end is connected to the sewage treatment equipment. The branch pipe (4) is inclined and connected to the main pipe (3). The filter plate (5) is inclinedly installed inside the main pipe (3), and the valve (21) is installed on the branch pipe (4).

3. The environmental protection treatment device for waste incineration residue according to claim 2, characterized in that, The stirring mechanism includes a drive motor (6), a rotating frame (7), a first stirring rod (8), and a second stirring rod (9). The drive motor (6) is mounted on the aging chamber (1), and the free end of the rotating frame (7) is connected to the output shaft of the drive motor (6). The first stirring rod (8) and the second stirring rod (9) are both mounted on the rotating frame (7).

4. The environmental protection treatment device for waste incineration residue according to claim 3, characterized in that, An internal gear ring (10) is provided inside the aging chamber (1), and a first stirring rod (8) is rotatably mounted on a rotating frame (7). A fixed gear (11) that meshes with the internal gear ring (10) is provided on the first stirring rod (8).

5. The environmental protection treatment device for waste incineration residue according to claim 4, characterized in that, The aging chamber (1) has a cavity (12) inside. The rotating frame (7) rotates and closes the cavity (12). The fixed gear (11) and the internal gear ring (10) are both located inside the cavity (12).

6. The environmental protection treatment device for waste incineration residue according to claim 3, characterized in that, It also includes a fixed cylinder (13) and a spiral conveyor (14). The fixed cylinder (13) is set inside the aging chamber (1), and the spiral conveyor (14) is set inside the fixed cylinder (13) with one end connected to the rotating frame (7). The other end of the spiral conveyor (14) extends into the main pipe (3).

7. The environmental protection treatment device for waste incineration residue according to claim 1, characterized in that, The spraying mechanism includes a spray ring pipe (15) and multiple spray pipes (16). The free end of the spray pipe (16) is connected to the water supply equipment, and the multiple spray pipes (16) are all connected to the spray ring pipe (15).

8. The environmental protection treatment device for waste incineration residue according to claim 1, characterized in that, The aging chamber (1) is constructed with an annular cavity (17) with a conical cross section. The ventilation mechanism includes an air outlet pipe (22), an air inlet ring pipe (18) located in the annular cavity (17), multiple air inlet pipes (19), and a filter ring plate (20). The free end of the air outlet pipe (22) is connected to the exhaust gas treatment equipment, the free end of the air inlet ring pipe (18) is connected to the air supply equipment, and multiple air inlet pipes (19) are all connected to the air inlet ring pipe (18).

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