Municipal solid waste leachate treatment device

Abstract

The invention discloses a municipal solid waste leachate treatment device, relates to the field of landfill leachate treatment, and solves the problem that an existing landfill leachate treatment device is difficult to efficiently treat. The municipal solid waste leachate treatment device comprises a device support and a feeding tank, a plurality of treatment tanks are arranged on the inner side of the device support, and a plurality of evaporators are fixedly mounted on the inner side of the device support; the evaporator is in butt joint with the treatment tank through a communicating pipe; the system further comprises a material injection mechanism used for feeding the landfill leachate in the feeding tank into the multiple treatment tanks, the material injection mechanism is installed at the bottom of the feeding tank and comprises a material distribution disc arranged at the bottom of the feeding tank, and the material distribution disc can sequentially feed the landfill leachate into the multiple treatment tanks; according to the invention, through the injection mechanism, the landfill leachate in the feeding tank can enter the plurality of treatment tanks in sequence by utilizing the rotation of the distribution disc, so that the continuous treatment of the landfill leachate is realized, and the treatment efficiency of the landfill leachate is improved.

Description

Technical Field

[0001] The present invention relates to the field of landfill leachate treatment, and particularly to a device for treating municipal solid waste leachate. Background Art

[0002] Municipal solid waste leachate refers to the high-concentration organic wastewater that seeps out from the garbage layer during the stacking, landfilling or treatment of municipal solid waste due to the effects of compaction, fermentation, rainwater scouring, immersion of surface water or groundwater, etc. After seeping into groundwater or surface water, it deteriorates the water quality and threatens the safety of drinking water. Therefore, it is necessary to treat the landfill leachate in a timely manner.

[0003] Sealed evaporation treatment of landfill leachate is an efficient treatment technology that evaporates and separates the water in the leachate through a closed evaporation system to achieve the concentration or solidification of pollutants. It is applicable to landfill leachate with high salinity and high-concentration refractory organic matter. Before evaporation treatment, it is necessary to pretreat the landfill leachate first. The landfill leachate is filled into a tank, and chemical agents are added to make the colloids, suspended solids and some dissolved pollutants in the water coagulate into larger particles, and then separated by gravity sedimentation. Since the treatment time of mixing and sedimentation is relatively long, only a certain amount of landfill leachate can be filled, and it can only be treated again after evaporation treatment and discharge, making it difficult to achieve efficient treatment of landfill leachate. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for treating municipal solid waste leachate to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A device for treating municipal solid waste leachate, comprising: a device support and a feed tank arranged on the top of the device support; a plurality of treatment tanks are symmetrically distributed at the center inside the device support; a plurality of evaporators symmetrically distributed at the center are fixedly installed inside the device support, and the evaporators are docked with the treatment tanks through connecting pipes; further comprising: a feeding mechanism for respectively sending the landfill leachate in the feed tank into a plurality of treatment tanks, the feeding mechanism is installed at the bottom of the feed tank, and the feeding mechanism includes a material distribution plate arranged at the bottom of the feed tank, and the material distribution plate can sequentially send the landfill leachate into a plurality of the treatment tanks; a blanking mechanism for automatically putting agents into the treatment tanks, the blanking mechanism is installed inside the treatment tanks, and the blanking mechanism includes a blanking cylinder fixedly installed on the inner wall of the top of the treatment tank, and the blanking cylinder can quantitatively put agents into the treatment tanks; a scraping mechanism for scraping the impurities remaining in the treatment tanks, the scraping mechanism is installed inside the treatment tanks, and the scraping mechanism includes spiral scraping bars arranged on the inner wall of the treatment tank, and the spiral scraping bars can scrape the impurities on the inner wall of the treatment tanks downward.

[0006] Preferably, the material injection mechanism further includes a mounting seat fixedly installed on the top of the device bracket, the bottom of the feed tank is fixedly installed on the top of the mounting seat, the material distribution plate is rotatably installed inside the mounting seat, a first discharge hole is opened on the outer side of the material distribution plate, a plurality of second discharge holes symmetrically distributed about the center are opened on the outer side of the mounting seat, the number of the second discharge holes is the same as that of the treatment tanks, and the second discharge holes are docked with the treatment tanks through discharge pipes. An installation disk is fixedly installed on the outer side of the device bracket, a plurality of installation holes symmetrically distributed about the center are opened on the outer side of the installation disk, the treatment tanks are fixedly installed inside the installation holes, a driving motor is fixedly installed on the bottom of the installation disk, a rotating rod is fixedly installed at the output end of the driving motor, the rotating rod penetrates through the installation disk and the mounting seat, and one end of the rotating rod away from the driving motor is fixedly connected to the bottom of the material distribution plate.

[0007] Preferably, the material discharging mechanism further includes a storage box fixedly installed on the top of the installation disk. The storage box is of a ring structure, and a discharging pipe is fixedly installed between the storage box and the material discharging cylinder. Discharging disks are fixedly installed on the bottom inner wall of the material discharging cylinder and the bottom inner wall of the discharging pipe. A plurality of first discharging holes are opened on the outer side of the discharging disk. A first sealing plate is slidably installed inside the material discharging cylinder, the top of the first sealing plate is in contact with the discharging disk on the material discharging cylinder, a second sealing plate is slidably installed on the top of the material discharging cylinder, the top of the second sealing plate is in contact with the discharging disk on the discharging pipe, and a plurality of second discharging holes are opened in both the first sealing plate and the second sealing plate, and the first sealing plate and the second sealing plate are arranged in a staggered manner. A pulling plate is fixedly installed on the outer side of the first sealing plate, a push rod slidably penetrating through the material discharging cylinder is fixedly installed on one side of the pulling plate away from the first sealing plate, a support plate is fixedly installed between the push rod and the second sealing plate, and two symmetrically distributed tension springs are fixedly installed between the pulling plate and the inner side of the material discharging cylinder. A push plate is fixedly installed on the outer side of the rotating rod, and the corresponding ends of the push plate and the push rod are both of an arc-shaped structure.

[0008] Preferably, the scraping mechanism further includes a driven rod rotatably installed inside the treatment tank. Scraping plates are fixedly installed at both ends of the spiral scraping bar. The outer side of the spiral scraping bar is in contact with the inner side of the treatment tank. The scraping plate at the bottom of the spiral scraping bar is in contact with the bottom inner wall of the treatment tank. One end of the scraping plate away from the spiral scraping bar is fixedly installed on the outer side of the driven rod. A main gear is fixedly installed on the outer side of the rotating rod. The top end of the driven rod extends to the top of the treatment tank, and a transmission gear is fixedly installed at the top end of the driven rod. The transmission gear meshes with the main gear.

[0009] Preferably, an aggregate tank is fixedly installed on the inner wall of the bottom of the device bracket, and the bottom of the treatment tank is docked with the aggregate tank through a sewage discharge valve.

[0010] Preferably, a slip ring is rotatably installed on the outer side of the material distribution plate, an annular cavity for the slip ring to slide in a limited manner is formed on the inner side of the mounting seat, and a spring is fixedly installed between the inner wall of the top of the annular cavity and the outer side of the slip ring.

[0011] Preferably, a support pipe is fixedly installed between the inner side of the material feeding cylinder and the treatment tank, and the push rod is slidably installed inside the support pipe.

[0012] Preferably, pulleys are rotatably installed at both the top and the bottom of the push plate, two symmetrically distributed annular sliding rails are fixedly installed on the inner side of the mounting disc, and the two pulleys are respectively slidably installed inside the two annular sliding rails.

[0013] Preferably, a limiting block is fixedly installed at one end of the push rod close to the pulling plate.

[0014] Preferably, a socket is rotatably installed on the outer side of the driven rod, and the socket is fixedly installed on the outer side of the storage box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the feeding mechanism of the present invention, by means of the rotation of the material distribution plate, the garbage leachate in the feeding tank can sequentially enter multiple treatment tanks. With the cooperation of the treatment tank and the evaporator, multiple treatment tanks can sequentially treat the garbage leachate and discharge it in sequence, realizing the continuous treatment of the garbage leachate, thereby improving the treatment efficiency of the garbage leachate.

[0016] Through the feeding mechanism of the present invention, when the material distribution plate rotates, the push plate can sequentially contact the push rods on the outer sides of multiple treatment tanks, seal the material feeding pipe, and open the material feeding cylinder, so that the medicament in the material feeding cylinder is put into the treatment tank. When the push rod moves away from the push rod, the return spring force is used to seal the material feeding cylinder and open the material feeding pipe, and the medicament in the storage box can enter the material feeding cylinder, thereby achieving the effect of quantitative feeding and improving the convenience and accuracy of medicament feeding.

[0017] Through the scraping mechanism of the present invention, during the rotation of the rotating rod, the main gear can drive the transmission gear to rotate, the transmission gear drives the driven rod to rotate synchronously, the spiral scraping strip scrapes the impurities inside the treatment tank downward, and the scraping plate scrapes the impurities on the inner wall of the bottom of the treatment tank, thereby achieving the effect of rapid discharging. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the feed tank and the aggregate tank in the present invention; Figure 3 It is a schematic structural diagram of the discharge pipe and the treatment tank in the present invention; Figure 4 is Figure 3 the enlarged structural diagram of area A in; Figure 5 It is a schematic structural diagram of the mounting seat and the material distribution plate in the present invention; Figure 6 It is a schematic structural diagram of the main gear and the mounting plate in the present invention; Figure 7 It is a schematic structural diagram of the spiral scraping bar and the scraper in the present invention; Figure 8 It is a schematic structural diagram of the discharge plate and the push rod in the present invention.

[0019] In the figure: 1, device bracket; 2, feed tank; 3, treatment tank; 4, evaporator; 5, material distribution plate; 6, blanking cylinder; 7, spiral scraping bar; 8, mounting seat; 9, discharge pipe; 10, mounting plate; 11, drive motor; 12, rotating rod; 13, storage box; 14, blanking pipe; 15, discharge plate; 16, first sealing plate; 17, second sealing plate; 18, pull plate; 19, push rod; 20, support plate; 21, tension spring; 22, push plate; 23, driven rod; 24, scraper; 25, main gear; 26, transmission gear; 27, aggregate tank; 28, sewage discharge valve; 29, slip ring; 30, spring; 31, support pipe; 32, pulley; 33, annular slide rail; 34, limit block; 35, sleeve seat. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-8, A municipal domestic waste leachate treatment device in the figure includes a device support 1 and a feed tank 2 arranged on the top of the device support 1, which is used to inject the leachate to be treated into the feed tank 2. A plurality of treatment tanks 3 are symmetrically distributed around the center on the inner side of the device support 1. A plurality of evaporators 4 are symmetrically distributed around the center and fixedly installed on the inner side of the device support 1. The evaporators 4 are connected to the treatment tanks 3 through connecting pipes, so that the evaporators 4 evaporate the leachate in the treatment tanks 3, and a pressure relief valve is installed on the top of the treatment tank 3. It also includes: a feeding mechanism, which is used to send the leachate in the feed tank 2 into a plurality of treatment tanks 3 respectively, and the feeding mechanism is installed at the bottom of the feed tank 2.

[0022] The feeding mechanism includes a distribution plate 5 arranged at the bottom of the feed tank 2. The distribution plate 5 can sequentially send the leachate into a plurality of treatment tanks 3. The feeding mechanism also includes a mounting seat 8 fixedly installed on the top of the device support 1. The bottom of the feed tank 2 is fixedly installed on the top of the mounting seat 8. The distribution plate 5 is rotatably installed inside the mounting seat 8, so that the feed tank 2 and the distribution plate 5 temporarily store the leachate. The outer side of the distribution plate 5 is provided with a first discharge hole, and the outer side of the mounting seat 8 is provided with a plurality of second discharge holes symmetrically distributed around the center. The number of the second discharge holes is the same as that of the treatment tanks 3, and the second discharge holes are connected to the treatment tanks 3 through discharge pipes 9. When the distribution plate 5 rotates, the first discharge hole is aligned with the second discharge hole, then the leachate in the feed tank 2 can enter the discharge pipe 9 through the first discharge hole and the second discharge hole. As the distribution plate 5 rotates, sequential feeding of a plurality of treatment tanks 3 is realized. An installation plate 10 is fixedly installed on the outer side of the device support 1. A plurality of mounting holes symmetrically distributed around the center are provided on the outer side of the installation plate 10. The treatment tanks 3 are fixedly installed inside the mounting holes, so that the installation plate 10 provides support for the treatment tanks 3. A driving motor 11 is fixedly installed at the bottom of the installation plate 10. The output end of the driving motor 11 is fixedly installed with a rotating rod 12. The rotating rod 12 penetrates through the installation plate 10 and the mounting seat 8. The end of the rotating rod 12 away from the driving motor 11 is fixedly connected to the bottom of the distribution plate 5. The driving motor 11 can drive the distribution plate 5 to rotate through the rotating rod 1 , so that the first drainage holes on the distribution plate 5 are sequentially aligned with a plurality of second drainage holes, realizing sequential feeding of a plurality of treatment tanks 3, facilitating continuous evaporation treatment of the leachate. A collecting tank 27 is fixedly installed on the inner wall of the bottom of the device support 1. The bottom of the treatment tank 3 is connected to the collecting tank 27 through a sewage discharge valve 28, so that the impurities after evaporation treatment inside the treatment tank 3 can enter the collecting tank 27 for recycling treatment. A slip ring 29 is rotatably installed on the outer side of the distribution plate 5. An annular cavity for the slip ring 29 to be limited and slide is provided inside the mounting seat 8. A spring 30 is fixedly installed between the inner wall of the top of the annular cavity and the outer side of the slip ring 29. Using the elastic potential energy of the spring 30, the slip ring 29 elastically presses the distribution plate 5, improving the sealing performance between the distribution plate 5 and the mounting seat 8 and preventing liquid leakage.

[0023] Example 2: Please refer to Figures 2-8, this embodiment further explains Example 1. The unloading mechanism in the figure includes a unloading barrel 6 fixedly mounted on the top inner wall of the processing tank 3. The unloading barrel 6 can quantitatively put medicine into the processing tank 3. The unloading mechanism also includes a storage box 13 fixedly mounted on the top of the mounting plate 10 for storing medicine. The storage box 13 is annular in structure, and a unloading pipe 14 is fixedly mounted between the storage box 13 and the unloading barrel 6, so that the medicine in the storage box 13 can enter the unloading barrel 6 through the unloading pipe 14. The bottom inner wall of the unloading barrel 6 and the bottom inner wall of the unloading pipe 14 are fixedly mounted with a discharge tray 15. A plurality of first unloading holes are provided on the outer side of the discharge tray 15. A first sealing plate 16 is slidably mounted on the inner side of the unloading barrel 6. The top of the first sealing plate 16 is in contact with the upper surface of the unloading barrel 6. The discharge disc 15 of the discharge barrel 6 is in contact with the second sealing plate 17, and the top of the discharge barrel 6 is slidably installed with a second sealing plate 17. The top of the second sealing plate 17 is in contact with the discharge disc 15 on the discharge pipe 14, and the first sealing plate 16 and the second sealing plate 17 are both provided with a plurality of second discharge holes, and the first sealing plate 16 and the second sealing plate 17 are staggered. When the second discharge hole on the first sealing plate 16 is aligned with the first discharge hole of the discharge disc 15 on the discharge barrel 6, the second discharge hole on the second sealing plate 17 can be staggered with the first discharge hole of the discharge disc 15 on the discharge pipe 14, and the second sealing plate 17 can seal the discharge pipe 14, and the medicine in the discharge barrel 6 can be put into the processing tank 3. On the contrary, the second discharge hole on the second sealing plate 17 is aligned with the discharge disc 15 on the discharge pipe 14. 5, the second discharge hole on the first sealing plate 16 is staggered with the first discharge hole of the discharge disk 15 on the discharge barrel 6, and the medicine in the storage box 13 can enter the discharge barrel 6 through the discharge pipe 14, so as to realize the quantitative discharge and storage of the medicine. A pull plate 18 is fixedly installed on the outer side of the first sealing plate 16, and a push rod 19 that slides through the discharge barrel 6 is fixedly installed on the side of the pull plate 18 away from the first sealing plate 16. A support plate 20 is fixedly installed between the push rod 19 and the second sealing plate 17, so that when the push rod 19 moves, the first sealing plate 16 and the second sealing plate 17 can be driven to move synchronously through the pull plate 18 and the support plate 20. Two symmetrically distributed tension springs 21 are fixedly installed between the pull plate 18 and the inner side of the discharge barrel 6 to facilitate the movement of the pull plate 18 The push rod 19 is manually reset. A push plate 22 is fixedly installed on the outside of the rotating rod 12, and the end of the push plate 22 corresponding to the push rod 19 is an arc-shaped structure, so that when the rotating rod 12 rotates, it can drive the push plate 22 to make a circular motion with the rotating rod 12 as the center. When the push plate 22 contacts the push rod 19, the push plate 22 can push the push rod 19 to move, thereby realizing the movement of the first sealing plate 16 and the second sealing plate 17. A support tube 31 is fixedly installed between the inner side of the discharge barrel 6 and the processing tank 3. The push rod 19 is slidably installed on the inner side of the support tube 31 to provide support and guidance for the movement of the push rod 19, thereby improving the stability of the movement of the push rod 19. The top and bottom of the push plate 22 are rotatably installed with pulleys 32, and the inner side of the mounting plate 10 is fixedly installed with two symmetrically distributed annular slide rails 33.Two pulleys 32 are respectively slidably installed on the inner sides of two annular slide rails 33, so that when the push plate 22 makes a circular motion, it can drive the pulleys 32 to move along the inner sides of the annular slide rails 33, improving the smoothness of the movement of the push plate 22. A limiting block 34 is fixedly installed at one end of the push rod 19 close to the pull plate 18. When the tension spring 21 pulls the pull plate 18 to reset, the limiting block 34 can abut against the inner side of the blanking cylinder 6, ensuring the accuracy of the moving positions of the first sealing plate 16 and the second sealing plate 17.

[0024] Embodiment 3: Please refer to Figures 3-7 , this embodiment further illustrates other embodiments. The scraping mechanism shown in the figure includes a spiral scraping strip 7 provided on the inner wall of the treatment tank 3. The spiral scraping strip 7 can scrape the impurities on the inner wall of the treatment tank 3 downward. The scraping mechanism also includes a driven rod 23 rotatably installed inside the treatment tank 3. Scrapers 24 are fixedly installed at both ends of the spiral scraping strip 7. The outer side of the spiral scraping strip 7 is in contact with the inner side of the treatment tank 3, so that when the spiral scraping strip 7 rotates, it can scrape the impurities inside the treatment tank 3 downward. The scraper 24 located at the bottom of the spiral scraping strip 7 is in contact with the bottom inner wall of the treatment tank 3, so that when the spiral scraping strip 7 moves, the scraper 24 can move along the bottom inner wall of the treatment tank 3, facilitating the scraping of the impurities at the bottom of the treatment tank 3. One end of the scraper 24 away from the spiral scraping strip 7 is fixedly installed on the outer side of the driven rod 23. A main gear 25 is fixedly installed on the outer side of the rotating rod 12. The top end of the driven rod 23 extends to the top of the treatment tank 3, and a transmission gear 26 is fixedly installed at the top end of the driven rod 23. The transmission gear 26 meshes with the main gear 25, so that when the rotating rod 12 rotates, it can drive the main gear 25 to rotate synchronously. The main gear 25 can drive the driven rod 23 to rotate through the transmission gear 26, facilitating the scraping of the impurities inside the treatment tank 3. A socket 35 is rotatably installed on the outer side of the driven rod 23. The socket 35 is fixedly installed on the outer side of the storage box 13, improving the smoothness of the rotation of the driven rod 23.

[0025] Working principle: First, the staff connects the pipeline for discharging leachate with the feed tank 2, so that the leachate enters the feed tank 2. At this time, the staff starts the driving motor 11, which drives the rotating rod 12 to rotate intermittently. The rotating rod 12 drives the material distribution plate 5 to rotate synchronously, so that the first discharge hole on the material distribution plate 5 is aligned with the second discharge hole on the mounting seat 8. The leachate in the feed tank 2 enters the discharge pipe 9 through the second discharge hole aligned with the first discharge hole, so that the leachate can enter the corresponding treatment tank 3 through the discharge pipe 9. At the same time, the rotating rod 12 drives the push plate 22 to rotate. The push plate 22 approaches the treatment tank 3 filled with leachate, so that the push plate 22 pushes the push rod 19 outside the treatment tank 3. The push rod 19 drives the pull plate 18 and the support plate 20 to move synchronously, so that the pull plate 18 and the support plate 20 drive the first sealing plate 16 and the second sealing plate 17 to move synchronously. The second material discharge hole on the first sealing plate 16 is aligned with the first material discharge hole of the discharge tray 15 on the material discharge cylinder 6. Moreover, the second material discharge hole on the second sealing plate 17 is staggered from the first material discharge hole of the discharge tray 15 on the discharge pipe 14, so that the second sealing plate 17 seals the discharge pipe 14. The medicament in the material discharge cylinder 6 enters the treatment tank 3 through the second material discharge hole on the first sealing plate 16 and the first material discharge hole on the discharge tray 15, and the medicament is put into the leachate in time. The treatment tank 3 evaporates the leachate through the evaporator 4. Then, the driving motor 11 drives the rotating rod 12 to rotate again, so that the first discharge hole on the material distribution plate 5 is aligned with another second discharge hole on the mounting seat 8, and the material distribution plate 5 can seal other second discharge holes. At the same time, the push plate 22 moves away from the treatment tank 3 filled with leachate. Using the resilience of the tension spring 21, the pull plate 18 is reset, and the first sealing plate 16 and the second sealing plate 17 can be reset synchronously, so that the second material discharge hole on the second sealing plate 17 is aligned with the first material discharge hole of the discharge tray 15 on the discharge pipe 14, and the second material discharge hole on the first sealing plate 16 is staggered from the first material discharge hole of the discharge tray 15 on the material discharge cylinder 6, realizing the sealing of the material discharge cylinder 6 and opening the discharge pipe 14. The medicament in the storage box 13 can enter the material discharge cylinder 6 through the discharge pipe 14, realizing the replenishment of the material discharge cylinder 6. Thus, with the intermittent rotation of the rotating rod 12, the leachate in the feed tank 2 can enter multiple treatment tanks 3 in sequence. The multiple treatment tanks 3 can evaporate the leachate in sequence, and discharge the treated leachate into the aggregate tank 27 from the sewage discharge valve 28 in sequence, realizing the continuous treatment of the leachate, thereby improving the treatment efficiency of the leachate; When the rotating rod 12 rotates, it can drive the main gear 25 to rotate synchronously. The main gear 25 can drive the driven rod 23 to rotate through the transmission gear 26, so that the transmission gear 26 drives the driven rod 23 to rotate synchronously. The driven rod 23 drives the spiral scraping bar 7 to rotate through the scraping plate 24, so that the spiral scraping bar 7 scrapes the impurities inside the treatment tank 3 downward. Moreover, the scraping plate 24 located at the bottom of the spiral scraping bar 7 moves along the inner wall of the bottom of the treatment tank 3, facilitating the feeding of the impurities into the aggregate tank 27, thereby achieving the effect of rapid discharging.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An urban domestic waste leachate treatment device, characterized in that, Including: A device support (1) and a feed tank (2), with a plurality of treatment tanks (3) arranged inside the device support (1). A plurality of evaporators (4) are fixedly installed inside the device support (1), and the evaporators (4) are docked with the treatment tanks (3) through connecting pipes; Also including: A feeding mechanism for separately feeding the leachate in the feed tank (2) into a plurality of treatment tanks (3). The feeding mechanism is installed at the bottom of the feed tank (2), and the feeding mechanism includes a distribution plate (5) arranged at the bottom of the feed tank (2), and the distribution plate (5) can sequentially feed the leachate into a plurality of the treatment tanks (3); A blanking mechanism for automatically putting medicaments into the treatment tank (3). The blanking mechanism is installed inside the treatment tank (3), and the blanking mechanism includes a blanking cylinder (6) installed on the inner wall of the top of the treatment tank (3), and the blanking cylinder (6) can quantitatively put medicaments into the treatment tank (3); A scraping mechanism for scraping the impurities remaining in the treatment tank (3). The scraping mechanism is installed inside the treatment tank (3), and the scraping mechanism includes a spiral scraping strip (7) arranged on the inner wall of the treatment tank (3), and the spiral scraping strip (7) can scrape the impurities on the inner wall of the treatment tank (3) downward.

2. The urban domestic waste leachate treatment device according to claim 1, characterized in that: The feeding mechanism further includes a mounting seat (8) installed on the top of the device support (1). The bottom of the feed tank (2) is installed on the top of the mounting seat (8). The outer side of the distribution plate (5) is provided with a first discharge hole, and the outer side of the mounting seat (8) is provided with a plurality of second discharge holes. The number of the second discharge holes is the same as the number of the treatment tanks (3), and the second discharge holes are docked with the treatment tanks (3) through discharge pipes (9). An installation disk (10) is installed on the outer side of the device support (1). A plurality of installation holes are provided on the outer side of the installation disk (10). The treatment tanks (3) are fixedly installed inside the installation holes. A driving motor (11) is installed at the bottom of the installation disk (10). The output end of the driving motor (11) is fixedly installed with a rotating rod (12), and one end of the rotating rod (12) is fixedly connected to the bottom of the distribution plate (5).

3. An urban domestic waste leachate treatment device according to claim 2, characterized in that: The blanking mechanism further includes a storage box (13) installed on the top of the mounting plate (10), and a blanking pipe (14) is installed between the storage box (13) and the blanking cylinder (6). A discharge plate (15) is fixedly installed on the bottom inner wall of the blanking cylinder (6) and the bottom inner wall of the blanking pipe (14). A plurality of first blanking holes are formed on the outer side of the discharge plate (15). A first sealing plate (16) is slidably installed inside the blanking cylinder (6), and a second sealing plate (17) is slidably installed on the top of the blanking cylinder (6). A plurality of second blanking holes are formed on both the first sealing plate (16) and the second sealing plate (17), and the first sealing plate (16) and the second sealing plate (17) are arranged in a staggered manner. A pull plate (18) is installed on the outer side of the first sealing plate (16). A push rod (19) is fixedly installed on one side of the pull plate (18). A support plate (20) is fixedly installed between the push rod (19) and the second sealing plate (17). Two tension springs (21) are installed between the pull plate (18) and the inner side of the blanking cylinder (6). A push plate (22) is fixedly installed on the outer side of the rotating rod (12).

4. An urban domestic waste leachate treatment device according to claim 3, characterized in that: The scraping mechanism further includes a driven rod (23) rotatably installed inside the treatment tank (3). Scrapers (24) are fixedly installed at both ends of the spiral scraping strip (7). The scraper (24) located at the bottom of the spiral scraping strip (7) is in contact with the bottom inner wall of the treatment tank (3). One end of the scraper (24) is fixedly installed on the outer side of the driven rod (23). A main gear (25) is fixedly installed on the outer side of the rotating rod (12). A transmission gear (26) is fixedly installed at the top end of the driven rod (23). The transmission gear (26) meshes with the main gear (25).

5. A municipal domestic waste leachate treatment device according to claim 1, characterized in that: An aggregate tank (27) is installed on the bottom inner wall of the device support (1). The bottom of the treatment tank (3) is connected to the aggregate tank (27) through a sewage discharge valve (28).

6. The urban domestic waste leachate treatment device according to claim 2, wherein: A sliding ring (29) is rotatably installed on the outer side of the distribution plate (5). An annular cavity is formed inside the mounting seat (8). A spring (30) is fixedly installed between the top inner wall of the annular cavity and the outer side of the sliding ring (29).

7. The treatment device for municipal domestic waste leachate according to claim 3, wherein: A support pipe (31) is installed between the inner sides of the blanking cylinder (6) and the treatment tank (3). The push rod (19) is slidably installed inside the support pipe (31).

8. A municipal domestic waste leachate treatment device according to claim 3, characterized in that: Pulleys (32) are rotatably installed at the top and bottom of the push plate (22). Two annular sliding rails (33) are fixedly installed inside the mounting plate (10). The two pulleys (32) are respectively slidably installed inside the two annular sliding rails (33).

9. The treatment device for municipal domestic waste leachate according to claim 3, wherein: A limit block (34) is fixedly installed at one end of the push rod (19).

10. An urban domestic waste leachate treatment device according to claim 4, characterized in that: A socket (35) is rotatably installed on the outer side of the driven rod (23). The socket (35) is installed on the outer side of the storage box (13).

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