Leachate spray-back system and spray-back method

Abstract

The present application relates to a leachate backspray system and a backspray method, and relates to the technical field of leachate treatment. It includes a storage tank having a pre-leaching area, a mid-leaching area and a post-leaching area, and a conveying assembly is connected in the storage tank for conveying garbage from the mid-leaching area towards the post-leaching area. When the garbage in the mid-leaching area is drained, the slider is driven by a driving member to slide towards the lower part of the post-leaching area, and the garbage in the mid-leaching area is squeezed to the lower part of the post-leaching area and finally conveyed to the post-leaching area through the stop-falling hole; the slider is driven by the driving member to slide in a direction away from the lower part of the post-leaching area until the slider is no longer below the stop-rising hole, and then the garbage in the pre-leaching area is conveyed to the mid-leaching area through the stop-rising hole for draining; the slider is driven by the driving member to slide reciprocally, and the garbage in the post-leaching area is continuously taken out, and the garbage in the pre-leaching area is continuously replenished, so as to maintain the continuous operation of the leachate backspray system. The replenishment and removal of garbage can be realized independently, without affecting each other, so the overall efficiency of garbage drainage is higher.

Description

Technical Field

[0001] This application relates to the field of leachate treatment, and in particular to a leachate backspray system and a backspray method. Background Art

[0002] Leachate is the wastewater generated during the stacking of garbage. During the garbage incineration process, leachate is usually backsprayed into the incinerator. On the one hand, it can control the temperature of the incinerator, and on the other hand, it can solve the problem of high cost of additional treatment of leachate.

[0003] A leachate backspray system in the related art includes a storage tank and an incinerator. A filter plate is arranged inside the storage tank, and a delivery pipeline is connected between the bottom of the storage tank and the incinerator. During use, garbage is stacked above the filter plate, and the leachate drips to the bottom of the storage tank under the action of the filter plate. When backspraying is required, the leachate is transported into the incinerator through the delivery pipeline to achieve backspraying.

[0004] In the process of implementing the above related technology, the inventor found that at least the following problems exist in this technology: when the leachate in the garbage above the filter plate is completely separated, it is necessary to first completely remove this part of the garbage before adding new garbage, which takes a long time and is likely to reduce the accumulation speed of leachate, so it needs to be improved. Summary of the Invention

[0005] In order to improve the problem that the accumulation speed of leachate is greatly affected by the time of taking and placing garbage, this application provides a leachate backspray system and a backspray method.

[0006] In a first aspect, a leachate backspray system provided by this application adopts the following technical solution:

[0007] A leachate backspray system includes a storage tank and an incinerator. A filter plate is arranged inside the storage tank, and a delivery pipeline is connected between the bottom of the storage tank and the incinerator. A partition is fixedly arranged on the inner wall of the storage tank, and the partition is located above the filter plate. A stop-rising plate and a stop-falling plate are respectively arranged on both sides of the partition;

[0008] The stop-rising plate, the partition and the stop-falling plate divide the space above the filter plate into the following three areas:

[0009] Above the stop-rising plate is the pre-leaching area, which is used to store the garbage to be leached;

[0010] Below the stop-rising plate and the stop-falling plate is the mid-leaching area, which is used to store the garbage that is being leached;

[0011] Above the stop-falling plate is the post-leaching area, which is used to store the garbage that has been leached;

[0012] The anti-lifting plate is provided with an anti-lifting hole penetrating therethrough, and an anti-lifting component for restricting the conveyance of garbage from the middle seepage area to the pre-seepage area is arranged in the anti-lifting hole;

[0013] The anti-dropping plate is provided with an anti-dropping hole penetrating therethrough, and an anti-dropping component for restricting the conveyance of garbage from the post-seepage area to the middle seepage area is arranged in the anti-dropping hole;

[0014] A sliding hole is penetratingly arranged on the side wall of the storage tank at the middle seepage area and close to the side of the pre-seepage area, a sliding block is adaptively inserted in the sliding hole, and the storage tank is further connected with a driving member for driving the sliding block to slide axially along the sliding hole.

[0015] By adopting the above technical solutions, garbage is put into the storage tank from the pre-seepage area, and the garbage in the pre-seepage area is conveyed to the middle seepage area through the anti-lifting hole for water drainage; when the garbage in the middle seepage area is drained of water, the driving member is used to drive the sliding block to slide downward toward the lower part of the post-seepage area, and the garbage in the middle seepage area is squeezed to the lower part of the post-seepage area and finally conveyed to the post-seepage area through the anti-dropping hole; the driving member is used to drive the sliding block to slide in a direction away from the lower part of the post-seepage area until the sliding block is no longer located below the anti-lifting hole, and thereafter the garbage in the pre-seepage area is conveyed to the middle seepage area through the anti-lifting hole for water drainage; the driving member is used to drive the sliding block to slide reciprocally, and the garbage in the post-seepage area is continuously taken out, and garbage is continuously replenished to the pre-seepage area, so that the continuous operation of the leachate backspray system can be maintained; when the temperature in the incinerator needs to be reduced, the leachate below the filter plate is pumped into the incinerator through the conveying pipeline for backspray. The replenishment and removal of garbage can be realized respectively without affecting each other, so the overall efficiency of garbage water drainage is higher.

[0016] Optionally, a lower anti-lifting hole is communicated with the bottom end of the anti-lifting hole, and the anti-lifting component includes an anti-lifting lower plate for covering the bottom opening of the anti-lifting hole, and one end of the anti-lifting lower plate close to the sliding hole is rotatably connected to the inner wall of the lower anti-lifting hole.

[0017] By adopting the above technical solutions, in the initial state, the driving member drives the sliding block to slide in a direction away from the post-seepage area until the sliding block is not directly below the anti-lifting hole. In this state, the anti-lifting lower plate flips downward under its own gravity, so that the anti-lifting hole and the lower anti-lifting hole are in a smooth state, and thus the garbage in the pre-seepage area can be conveyed to the middle seepage area through the anti-lifting hole and the lower anti-lifting hole. When the garbage in the middle seepage area is drained of water, the driving member is used to drive the sliding block to slide downward toward the lower part of the post-seepage area. During this process, the sliding block pushes the anti-lifting lower plate to flip upward until the anti-lifting lower plate covers the anti-lifting hole, so that the anti-lifting hole is converted into a closed state, thereby restricting the reflux of garbage to the pre-seepage area. When most of the garbage after the water drainage in the middle seepage area is conveyed to the post-seepage area, the driving member drives the sliding block to reset. When the sliding block is no longer located below the anti-lifting hole, the anti-lifting plate flips downward to restore the smooth state of the anti-lifting hole, and the garbage in the pre-seepage area can naturally fall into the middle seepage area through the anti-lifting hole for water drainage. In summary, the anti-lifting lower plate can realize the adjustment of the opening and closing of the anti-lifting hole under the action of whether it is supported by the sliding block or not.

[0018] Optionally, a top stop hole is communicatively provided at the top end of the stop hole. The stop component includes a stop upper plate for covering the top opening of the stop hole. The end of the stop upper plate is rotatably connected to the inner wall of the stop upper hole. The stop component further includes a limiting rod, which is fixedly connected to the inner wall of the stop upper hole and is located on the side of the stop upper plate away from the stop hole. When the stop upper plate rotates to fit with the limiting rod, the included angle between the stop upper plate and the stop plate is an acute angle.

[0019] By adopting the above technical solution, during the process of the slider sliding downward below the post-filtration area, the garbage in the middle filtration area can be squeezed to below the post-filtration area. The garbage below the post-filtration area will push the stop upper plate to flip upward until the stop upper plate abuts against the limiting rod. At this time, the stop hole is in an unobstructed state, thereby realizing the transportation of the garbage in the middle filtration area to the post-filtration area. When most of the garbage after draining in the middle filtration area is transported to the post-filtration area, the driving member drives the slider to reset. During this process, some of the garbage in the post-filtration area located between the stop plate and the stop hole will fall into the middle filtration area. However, as this part of the garbage falls, the stop plate flips downward to close the stop hole, and thereafter the garbage in the post-filtration area can be prevented from falling into the middle filtration area. In summary, the stop upper plate can be automatically opened and closed under the pushing or pressing action of the garbage.

[0020] Optionally, the filter plate includes a straight section and an arc section. The arc section is located on the side of the straight section away from the sliding hole, and the concave surface of the arc section is arranged upward;

[0021] A lifting plate is rotatably connected to the end face of the slider close to the arc section. The slider is further connected with a lifting component for driving the lifting plate to flip up and down to push the garbage at the arc section towards the stop plate.

[0022] By adopting the above technical solution, when the slider slides to the arc section, the lifting component is used to drive the lifting plate to flip upward, so that the garbage at the arc section can be pushed towards the post-filtration area, thereby enabling more drained garbage to be transported to the post-filtration area. When the slider resets, the lifting component can be used to drive the lifting plate to reset. Thereafter, when the slider slides away from below the lower stop plate, the lifting plate will not affect the downward flipping of the lower stop plate.

[0023] Optionally, the lifting component includes a lifting gear and a lifting rack. The lifting gear is rotatably connected to the slider. The lifting plate is rotatably connected to the slider by being fixedly connected to the lifting gear. The lifting rack is fixedly connected to the storage tank, and the lifting gear meshes with the lifting rack.

[0024] By adopting the above technical solution, after the slider slides to the contact position between the lifting gear and the lifting rack, continuously sliding the slider can make the lifting gear mesh with the lifting rack. After that, with the continuous sliding of the slider, the lifting rack can make the whole lifting gear and the lifting plate automatically turn upward, so as to push the garbage at the arc section towards the post-seepage area, thereby enabling more garbage after draining to be conveyed to the post-seepage area. When the slider resets, the lifting rack makes the whole lifting gear and the lifting plate turn downward until the lifting plate returns to the vertical state. At the same time, the lifting gear is separated from the lifting rack. In summary, when the slider slides to the arc section, the lifting plate can automatically turn upward, and when the slider slides away from the arc section, the lifting plate can automatically turn downward.

[0025] Optionally, the anti-falling plate is slidably connected to the inner wall of the storage tank, and the inner wall of the storage tank is fixedly connected with a support bar for supporting the anti-falling plate. The top wall of the anti-falling plate is fixedly connected with an anti-falling pipe with both ends open. The anti-falling pipe and the anti-falling plate form a box structure with an upward opening. The top wall of the storage tank is slidably connected with a pressure rod, and the top wall of the anti-falling pipe abuts against the bottom wall of the pressure rod.

[0026] By adopting the above technical solution, during the process of conveying the garbage towards the post-seepage area, the pressure rod can prevent the garbage from easily pushing the whole anti-falling plate and the anti-falling pipe upward, with higher stability. And when there is a large amount of garbage accumulated in the post-seepage area, the pressure rod can be slid to slide the pressure rod away from directly above the anti-falling pipe. After that, the whole anti-falling pipe and the anti-falling plate can be taken out, which is more convenient for transporting the garbage in the post-seepage area.

[0027] Optionally, a sliding groove is provided at the bottom of the inner side wall of the anti-falling pipe. The length direction of the sliding groove is parallel to the top wall of the anti-falling plate. A sliding rod is slidably connected in the sliding groove. The sliding rod is fixedly connected with a connecting rod, and the end of the connecting rod away from the sliding rod is detachably connected to the pressure rod.

[0028] By adopting the above technical solution, before taking out the whole anti-falling pipe and the anti-falling plate, the pressure rod can be slid first. During the process of the sliding rod sliding with the pressure rod, the anti-falling upper plate at the bottom of the anti-falling pipe can be pressed down, so as to promote the anti-falling upper plate to turn downward until the anti-falling upper plate covers the anti-falling hole. Then the connecting rod is detached from the pressure rod, and the whole connecting rod and the sliding rod are taken out of the anti-falling pipe. Then the pressure rod is further slid so that the pressure rod is no longer directly above the anti-falling pipe. After that, the anti-falling pipe and the anti-falling plate can be taken out, thus facilitating the transportation of the garbage in the post-seepage area.

[0029] Optionally, a receiving groove is arranged on the bottom wall of the slider along its sliding direction. A scraping plate is fixedly arranged at the end of the inner wall of the receiving groove close to the anti-falling plate. The end of the scraping plate away from the receiving groove abuts against the top of the filter plate. A cleaning brush for brushing the top wall of the filter plate is also arranged inside the receiving groove.

[0030] By adopting the above technical solution, during the sliding process of the slider, the scraping plate can scrape the top wall of the filter plate, and the cleaning brush can brush the top wall of the filter plate. Therefore, during the reciprocating sliding process of the slider, the surface of the filter plate can be cleaned, and the prefabricated holes, cavities, etc. of the filter plate can be cleaned, making the filter plate not easily blocked.

[0031] Optionally, an installation groove is provided on the bottom wall of the slider along the direction perpendicular to its sliding path. The cleaning brush includes a connected brush handle and bristles. The brush handle is located in the installation groove and is slidably connected to the inner wall of the installation groove. The bristles extend out of the installation groove and abut against the filter plate.

[0032] By adopting the above technical solution, when the cleaning brush needs to be replaced, first use the driving member to slide the part of the slider with the installation groove out of the sliding hole, and then the brush handle can be slid out of the installation groove, thus realizing the replacement of the cleaning brush, which is convenient to operate.

[0033] In a second aspect, the present application provides a backspray method based on a leachate backspray system, adopting the following technical solution:

[0034] A backspray method based on a leachate backspray system includes the following steps:

[0035] S1. Put the garbage into the storage tank from the pre-leaching area. The garbage in the pre-leaching area is transported to the middle leaching area through the anti-lifting holes for water drainage.

[0036] S2. When the garbage in the middle leaching area has finished draining water, drive the slider to slide downward below the post-leaching area through the driving member. The garbage in the middle leaching area is squeezed to below the post-leaching area and finally transported to the post-leaching area through the anti-falling holes.

[0037] S3. Drive the slider to slide in a direction away from below the post-leaching area through the driving member until the slider is no longer below the anti-lifting holes. After that, the garbage in the pre-leaching area is transported to the middle leaching area through the anti-lifting holes for water drainage.

[0038] S4. Repeat steps S2 and S3, continuously take out the garbage in the post-leaching area, and continuously supplement the garbage in the pre-leaching area to maintain the continuous operation of the leachate backspray system.

[0039] When the incinerator needs to be cooled down, use the conveying pipeline to pump the leachate below the filter plate into the incinerator for backspray.

[0040] By adopting the above technical solution, the garbage can automatically flow through the pre-leaching area, the middle leaching area and the post-leaching area in sequence. Just continuously supplement new garbage to the pre-leaching area and continuously take out the garbage with drained water in the post-leaching area to realize automatic water drainage of the garbage. Moreover, the replenishment and removal of the garbage can be operated separately without affecting each other. Therefore, the overall efficiency of garbage water drainage is higher. Description of the Drawings

[0041] Figure 1 Structural schematic diagram of an embodiment of the present application Figure 1 , in this state, the upward stop hole is closed and the downward stop hole is unblocked;

[0042] Figure 2 is Figure 1 the top view of;

[0043] Figure 3 is Figure 2 the cross-sectional view along the A-A direction, used to reflect the positional relationship of the pre-infiltration area, the infiltration middle area and the post-infiltration area;

[0044] Figure 4 is Figure 3 the enlarged view at B in, used to reflect the connection relationship between the downward stop assembly and the downward stop plate;

[0045] Figure 5 is Figure 3 the enlarged view at C in, used to reflect the connection relationship between the upward stop assembly and the upward stop plate;

[0046] Figure 6 Structural schematic diagram of an embodiment of the present application Figure 2 , in this state, the upward stop hole is unblocked and the downward stop hole is closed;

[0047] Figure 7 is Figure 6 the cross-sectional view along the D-D direction, used to reflect the positional relationship of the pre-infiltration area, the infiltration middle area and the post-infiltration area.

[0048] In the figure:

[0049] 1. Storage tank; 11. Incinerator; 12. Delivery pipeline; 13. Partition board; 14. Support bar; 15. Pre-infiltration area; 16. Infiltration middle area; 17. Post-infiltration area;

[0050] 2. Filter plate; 21. Straight section; 22. Arc section;

[0051] 3. Upward stop plate; 30. Upward stop hole; 300. Lower upward stop hole; 31. Upward stop assembly; 311. Lower upward stop plate;

[0052] 4. Downward stop plate; 40. Downward stop hole; 400. Upper downward stop hole; 41. Downward stop assembly; 411. Upper downward stop plate; 412. Limit rod; 42. Downward stop pipe; 43. Sliding sleeve; 44. Pressure rod; 45. Connecting rod; 46. Slide bar; 460. Slide groove;

[0053] 5. Slide block; 50. Slide hole; 51. Driving part; 52. Lifting plate; 53. Lifting assembly; 531. Lifting gear; 532. Lifting rack; 54. Scraper; 540. Accommodation groove; 55. Cleaning brush; 550. Installation groove; 551. Brush handle; 552. Brush bristles. Detailed implementation manners

[0054] The following further elaborates on this application in conjunction with the attached Figures 1-7 drawings for a more detailed description.

[0055] An embodiment of this application discloses a leachate backspray system. Referring to Figure 1 , the leachate backspray system includes a storage tank 1 and an incinerator 11. The storage tank 1 is used to store garbage, drain the garbage, and the leachate is stored at the bottom of the storage tank 1. The incinerator 11 is used to incinerate the garbage. A delivery pipeline 12 is communicatively provided between the bottom of the storage tank 1 and the top of the incinerator 11. When the incinerator 11 needs to be cooled down, the leachate at the bottom of the storage tank 1 can be pumped into the incinerator 11 through the delivery pipeline 12 in cooperation with a water pump to achieve the backspray treatment of the leachate.

[0056] Referring to Figure 2 and Figure 3 , a filter plate 2, a partition plate 13, a rising stop plate 3 and a falling stop plate 4 are arranged inside the storage tank 1. The partition plate 13 is vertically fixed at the top position of the inner wall of the storage tank 1. The filter plate 2 is located below the partition plate 13, and there is a space for garbage to pass between the bottom of the partition plate 13 and the top wall of the filter plate 2. The rising stop plate 3 and the falling stop plate 4 are respectively located on both sides of the partition plate 13 and are horizontally arranged. The rising stop plate 3, the falling stop plate 4 and the partition plate 13 divide the space above the filter plate 2 into the following three areas: above the rising stop plate 3 is the pre-leaching area 15 for storing garbage to be drained. Below the rising stop plate 3 and the falling stop plate 4 is the mid-leaching area 16 for storing garbage that is being drained. Below the falling stop plate 4 is the post-leaching area 17 for storing garbage that has been drained.

[0057] Referring to Figure 3 , the rising stop plate 3 is fixedly connected to the inner wall of the storage tank 1, and the rising stop plate 3 is vertically penetrated with a rising stop hole 30. A rising stop assembly 31 for restricting the conveyance of garbage from the mid-leaching area 16 to the pre-leaching area 15 is arranged in the rising stop hole 30. The falling stop plate 4 is inserted into the storage tank 1 and can slide vertically. A support bar 14 is fixedly arranged on the inner wall of the storage tank 1 for supporting the bottom wall of the falling stop plate 4. A vertically arranged falling stop pipe 42 is integrally formed on the top wall of the falling stop plate 4. The falling stop plate 4 and the falling stop pipe 42 form a box structure with an open top for storing garbage. The falling stop plate 4 is vertically penetrated with a falling stop hole 40. A falling stop assembly 41 for restricting the conveyance of garbage from the post-leaching area 17 to the mid-leaching area 16 is arranged in the falling stop hole 40.

[0058] Referring to Figure 1 and Figure 3, the storage tank 1 is located at the infiltration middle area 16, and a sliding hole 50 is horizontally penetrated through the side wall of one side close to the infiltration front area 15. A slider 5 is adaptively inserted into the sliding hole 50. The storage tank 1 is also fixedly connected with a driving member 51. The driving member 51 is a linear reciprocating mechanism such as a cylinder or a hydraulic cylinder, and is used to drive the slider 5 to slide along the axial direction of the sliding hole 50, so as to push the garbage in the infiltration middle area 16 towards the infiltration rear area 17 and reset.

[0059] Referring to Figure 3 , based on the above partition, during use, the garbage is put into the storage tank 1 from the infiltration front area 15, and the garbage in the infiltration front area 15 is conveyed to the infiltration middle area 16 through the anti-lift hole 30 for water drainage. When the garbage in the infiltration middle area 16 finishes draining water, the driving member 51 drives the slider 5 to slide downward towards the infiltration rear area 17, and the garbage in the infiltration middle area 16 is squeezed to the lower part of the infiltration rear area 17 and finally conveyed to the infiltration rear area 17 through the anti-falling hole 40. During this process, the anti-lift assembly 31 can limit the garbage from entering the infiltration front area 15, so the stability of the garbage during the conveying process from the infiltration middle area 16 towards the infiltration rear area 17 can be ensured.

[0060] After the garbage that has finished draining water in the infiltration middle area 16 is conveyed to the infiltration rear area 17, the driving member 51 drives the slider 5 to reset until the slider 5 is no longer located below the anti-lift hole 30. After that, the garbage in the infiltration front area 15 naturally falls from the anti-lift hole 30 to the infiltration middle area 16 for water drainage. During this process, the anti-falling assembly 41 can limit the garbage in the infiltration rear area 17 from falling to the infiltration middle area 16, so the stability of the garbage during the conveying process from the infiltration front area 15 to the infiltration middle area 16 can be ensured.

[0061] Referring to Figure 3 , a receiving groove 540 is penetrated through the bottom wall of the slider 5 along its length direction, and a plurality of mounting grooves 550 are penetrated through the bottom wall of the slider 5 along its width direction, and the plurality of mounting grooves 550 are uniformly distributed along the length direction of the slider 5. A plurality of cleaning brushes 55 are arranged at the bottom of the slider 5, and the plurality of cleaning brushes 55 correspond to the plurality of mounting grooves 550 one by one. The cleaning brush 55 includes a brush handle 551 and bristles 552. The cross section of the brush handle 551 is T-shaped and is adaptively inserted into the mounting groove 550. The bristles 552 are adhered to the bottom of the brush handle 551 and are located in the receiving groove 540. When the slider 5 slides, the bottom of the bristles 552 can brush the top wall of the filter plate 2. One end of the inner wall of the receiving groove 540 far from the sliding hole 50 is fixedly adhered with a scraper 54. The scraper 54 is made of rubber and the end of the scraper 54 far from the end connected with the receiving groove 540 is inclined towards the direction away from the sliding hole 50. When the slider 5 slides towards the arc section 22, the scraper 54 can scrape the top wall of the filter plate 2.

[0062] Referring to Figure 3, the filter plate 2 includes a straight section 21 and an arc section 22, and both the straight section 21 and the arc section 22 are fixedly arranged inside the storage tank 1. The arc section 22 is located on the side of the straight section 21 away from the sliding hole 50, and the cross-section of the arc section 22 is a 1 / 4 arc and the concave surface is arranged upward.

[0063] Referring to Figure 3 and Figure 4 , a lifting plate 52 is rotatably connected to the top of the end face of the slider 5 close to the arc section 22. During the process of the lifting plate 52 flipping up and down around the rotation point, the bottom of the lifting plate 52 fits against the concave surface of the arc section 22. The slider 5 is also provided with a lifting assembly 53 for driving the lifting plate 52 to flip up and down. The lifting assembly 53 includes a lifting gear 531 and a lifting rack 532. The lifting gear 531 is rotatably connected to the top of the end face of the slider 5 close to the arc section 22. The lifting plate 52 is fixedly connected to the lifting gear 531 and the plane where the lifting plate 52 is located passes through the central axis of the lifting gear 531. The lifting rack 532 is fixedly connected to the inner side wall of the storage tank 1 and the lifting rack 532 is horizontally arranged. When the slider 5 slides downward below the seepage area 17, the lifting gear 531 contacts the lifting rack 532, and then by continuing to slide the slider 5, the lifting gear 531 can be engaged with the lifting rack 532. After that, the lifting rack 532 can cause the whole lifting gear 531 and the lifting plate 52 to automatically flip upward, so as to push the garbage at the arc section 22 towards the seepage area 17, thereby enabling more garbage after draining to be transported to the seepage area 17.

[0064] Referring to Figure 3 and Figure 4 , a falling prevention upper hole 400 is communicated with the top end of the falling prevention hole 40. The width of the falling prevention upper hole 400 is greater than the width of the falling prevention hole 40. The falling prevention assembly 41 includes a falling prevention upper plate 411 and a limiting rod 412. The falling prevention upper plate 411 is rotatably connected to the inner wall of the falling prevention upper hole 400 and the connection part is located at one end of the inner wall of the falling prevention upper hole 400 close to the partition plate 13. The limiting rod 412 is fixedly connected to the inner wall of the falling prevention upper hole 400 and the limiting rod 412 is located above the falling prevention upper plate 411. When the garbage below the falling prevention plate 4 is transported upward, the garbage pushes the falling prevention upper plate 411 upward until the falling prevention upper plate 411 abuts against the limiting rod 412, and at this time the included angle between the falling prevention upper plate 411 and the falling prevention plate 4 is an acute angle, which is 60° in this embodiment. In this state, the falling prevention hole 40 and the falling prevention upper hole 400 are in a flow-through state, and the garbage can be transported upward. When there is no longer garbage pushing the falling prevention upper plate 411 upward, the garbage above the falling prevention upper plate 411 sinks under its own gravity, thereby driving the falling prevention upper plate 411 to flip downward to reset until the falling prevention upper plate 411 covers the falling prevention hole 40 again. After that, the garbage above the falling prevention plate 4 can be restricted from falling from the falling prevention hole 40 and the falling prevention upper hole 400.

[0065] Referring to Figure 3 hole Figure 4, sliding sleeves 43 are fixedly arranged on the top walls of the storage tank 1 and the partition plate 13. A pressure rod 44 is inserted into the sliding sleeve 43 and the pressure rod 44 can slide axially along the sliding sleeve 43. The bottom wall of the pressure rod 44 is in contact with the top wall of the anti-falling pipe 42, so that the garbage is not easily ejected from the storage tank 1 when the garbage is transported from the self-seepage middle area 16 to the post-seepage area 17. The pressure rod 44 is detachably connected with a connecting rod 45 through a bolt. The connecting rod 45 is vertically arranged and a sliding rod 46 is fixedly arranged at the bottom. The sliding rod 46 is horizontally arranged. A sliding groove 460 is arranged at the bottom of the inner wall of the anti-falling pipe 42 along the horizontal direction. The end of the sliding rod 46 extends into the sliding groove 460. When the pressure rod 44 slides along the sliding sleeve 43, the sliding rod 46 can sequentially push a plurality of anti-falling plates 4 to turn downward, so as to promote the anti-falling plates 4 to cover the anti-falling holes 40. When the garbage in the post-seepage area 17 is stored to a certain amount, the connecting rod 45 can be detached from the pressure rod 44 first, and then the pressure rod 44 is slid so that the pressure rod 44 is no longer directly above the anti-falling pipe 42. After that, the anti-falling pipe 42, the anti-falling plate 4 as a whole and the loaded garbage can be taken out, which is more convenient.

[0066] Referring to Figure 3 and Figure 5 , the bottom end of the anti-lifting hole 30 is communicated with an anti-lifting lower hole 300. The width of the anti-lifting lower hole 300 is greater than the width of the anti-lifting hole 30. The anti-lifting assembly 31 includes an anti-lifting lower plate 311. One end of the anti-lifting lower plate 311 close to the sliding hole 50 is rotatably connected with the inner wall of the anti-lifting lower hole 300, and the connection part of the anti-lifting lower plate 311 and the anti-lifting lower hole 300 is located on the side of the anti-lifting lower hole 300 close to the sliding hole 50. When the slider 5 slides downward toward the lower part of the post-seepage area 17, the end of the slider 5 pushes the anti-lifting lower plate 311 to turn upward until the anti-lifting lower plate 311 covers the bottom opening of the anti-lifting hole 30 and the top wall of the slider 5, the bottom wall of the anti-lifting lower plate 311 and the bottom wall of the anti-lifting plate 3 are all in the same plane, so as to limit the continuous extrusion of the garbage in the self-seepage middle area 16 into the pre-seepage area 15 during this process. When the slider 5 slides away from the lower part of the post-seepage area 17, the slider 5 no longer supports the anti-lifting lower plate 311. At this time, the anti-lifting lower plate 311 turns downward under the action of its own gravity, so that the anti-lifting hole 30 and the anti-lifting lower hole 300 are restored to the flowing state, and the garbage in the pre-seepage area 15 can fall to the self-seepage middle area 16 by itself from the anti-lifting hole 30 and the anti-lifting lower hole 300.

[0067] The implementation principle of a leachate backspray system in an embodiment of the present application is as follows:

[0068] In the initial state, the driving member 51 drives the slider 5 to slide away from the post-seepage area 17 until the slider 5 is not directly below the lifting hole 30. In this state, the lower lifting plate 311 flips downward under its own gravity, so that the lifting hole 30 and the lower lifting hole 300 are in an unobstructed state; the upper blocking plate 411 covers the blocking hole 40 under its own gravity, so that the blocking hole 40 and the upper blocking hole 400 are in a closed state. Before use, the garbage is put into the storage tank 1 from the pre-seepage area 15, and the garbage in the pre-seepage area 15 is conveyed to the middle seepage area 16 through the lifting hole 30 for water drainage.

[0069] In the first stage, referring to Figure 2 and Figure 3 : When the garbage in the middle seepage area 16 has finished draining water, the driving member 51 drives the slider 5 to slide downward toward the lower part of the post-seepage area 17. During this process, the slider 5 pushes the lower lifting plate 311 to flip upward until the lower lifting plate 311 covers the lifting hole 30, so that the lifting hole 30 is converted to a closed state, thereby restricting the reflux of garbage to the pre-seepage area 15. In addition, during the process of the slider 5 sliding downward toward the lower part of the post-seepage area 17, the garbage in the middle seepage area 16 can be squeezed to the lower part of the post-seepage area 17, and the garbage in the lower part of the post-seepage area 17 will push the upper blocking plate 411 to flip upward, so that the blocking hole 40 is in an unobstructed state, and then the garbage in the middle seepage area 16 is conveyed to the post-seepage area 17. When the slider 5 slides until the lifting gear 531 contacts the lifting rack 532, continuing to slide the slider 5 can make the lifting gear 531 engage with the lifting rack 532. After that, as the slider 5 continues to slide, the lifting rack 532 can make the lifting gear 531 and the lifting plate 52 as a whole automatically flip upward to push the garbage at the arc section 22 toward the post-seepage area 17, so that more drained garbage can be conveyed to the post-seepage area 17.

[0070] In the second stage, referring to Figure 6 and Figure 7 : When most of the garbage in the middle seepage area 16 after draining water has been conveyed to the post-seepage area 17, the driving member 51 drives the slider 5 to reset. During this process, the lifting rack 532 makes the lifting gear 531 and the lifting plate 52 as a whole flip downward until the lifting plate 52 returns to the vertical state. During this process, some garbage in the post-seepage area 17 between the blocking plate 4 and the blocking hole 40 will fall to the middle seepage area 16, but as this part of the garbage falls, the blocking plate 4 flips downward to close the blocking hole 40, and then the garbage in the post-seepage area 17 will no longer fall to the middle seepage area 16. The slider 5 continues to slide in the direction away from the post-seepage area 17 until the slider 5 is no longer below the lifting hole 30. At this time, the lifting plate 3 flips downward, and the garbage in the pre-seepage area 15 naturally falls to the middle seepage area 16 through the lifting hole 30 for water drainage.

[0071] Repeating the steps of the first stage and the second stage can achieve the automatic operation of garbage in the pre-seepage area 15, the middle-seepage area 16, and the post-seepage area 17. Just regularly supplement garbage to the pre-seepage area 15 and regularly remove the garbage in the post-seepage area 17 to achieve the automatic drainage and transportation of garbage, with higher efficiency.

[0072] The embodiment of the present application also discloses a backspray method based on a leachate backspray system, including the following steps:

[0073] S1. Put the garbage from the pre-seepage area 15 into the storage tank 1, and the garbage in the pre-seepage area 15 is transported to the middle-seepage area 16 through the anti-lift hole 30 for drainage.

[0074] S2. When the garbage in the middle-seepage area 16 has finished draining, drive the slider 5 to slide downward below the post-seepage area 17 through the driving member 51. The garbage in the middle-seepage area 16 is squeezed to below the post-seepage area 17 and finally transported to the post-seepage area 17 through the anti-falling hole 40.

[0075] S3. Drive the slider 5 to slide in a direction away from below the post-seepage area 17 through the driving member 51 until the slider 5 is no longer below the anti-lift hole 30. After that, the garbage in the pre-seepage area 15 is transported to the middle-seepage area 16 through the anti-lift hole 30 for drainage.

[0076] S4. Repeat steps S2 and S3, continuously remove the garbage in the post-seepage area 17, and continuously supplement the garbage to the pre-seepage area 15 to maintain the continuous operation of the leachate backspray system.

[0077] When the incinerator 11 needs to be cooled down, the leachate below the filter plate 2 is pumped into the incinerator 11 through the conveying pipeline 12 for backspray.

[0078] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A leachate recirculation spraying system, comprising a storage tank (1) and an incinerator (11). A filter plate (2) is arranged inside the storage tank (1). A delivery pipeline (12) is connected between the bottom of the storage tank (1) and the incinerator (11). It is characterized in that: A partition plate (13) is fixedly arranged on the inner wall of the storage tank (1). The partition plate (13) is located above the filter plate (2). A rising-stop plate (3) and a falling-stop plate (4) are respectively arranged on both sides of the partition plate (13); The space above the filter plate (2) is divided into the following three areas by the rising-stop plate (3), the partition plate (13) and the falling-stop plate (4): Above the rising-stop plate (3) is the pre-seepage area (15) for storing the garbage to be drained; Below the rising-stop plate (3) and the falling-stop plate (4) is the middle-seepage area (16) for storing the garbage that is being drained; Above the falling-stop plate (4) is the post-seepage area (17) for storing the garbage that has been drained; A rising-stop hole (30) is penetrated through the rising-stop plate (3), and a rising-stop component (31) for restricting the conveyance of garbage from the middle-seepage area (16) to the pre-seepage area (15) is arranged in the rising-stop hole (30); A falling-stop hole (40) is penetrated through the falling-stop plate (4), and a falling-stop component (41) for restricting the conveyance of garbage from the post-seepage area (17) to the middle-seepage area (16) is arranged in the falling-stop hole (40); A sliding hole (50) is penetrated through the side wall of the storage tank (1) at the middle-seepage area (16) and close to the side of the pre-seepage area (15). A slider (5) is adaptively inserted into the sliding hole (50), and the storage tank (1) is also connected with a driving component (51) for driving the slider (5) to slide axially along the sliding hole (50); The filter plate (2) includes a straight section (21) and an arc section (22). The arc section (22) is located on the side of the straight section (21) away from the sliding hole (50), and the concave surface of the arc section (22) is arranged upward; A lifting plate (52) is rotatably connected to the end face of the slider (5) close to the arc section (22). The slider (5) is also connected with a lifting component (53) for driving the lifting plate (52) to turn up and down to push the garbage at the arc section (22) towards the falling-stop plate (4); The lifting component (53) includes a lifting gear (531) and a lifting rack (532). The lifting gear (531) is rotatably connected to the slider (5). The lifting plate (52) is fixedly connected to the lifting gear (531) to realize the rotational connection between the lifting plate (52) and the slider (5). The lifting rack (532) is fixedly connected to the storage tank (1), and the lifting gear (531) is meshed with the lifting rack (532).

2. The leachate recirculation spraying system according to claim 1, characterized in that: The bottom end of the rising-stop hole (30) is communicated with a lower rising-stop hole (300). The rising-stop component (31) includes a lower rising-stop plate (311) for covering the bottom opening of the rising-stop hole (30). One end of the lower rising-stop plate (311) close to the sliding hole (50) is rotatably connected to the inner wall of the lower rising-stop hole (300).

3. The leachate recirculation spraying system according to claim 1, characterized in that: The top end of the anti-falling hole (40) is communicatively provided with an upper anti-falling hole (400). The anti-falling assembly (41) includes an upper anti-falling plate (411) for covering the top opening of the anti-falling hole (40). The end of the upper anti-falling plate (411) is rotationally connected to the inner wall of the upper anti-falling hole (400). The anti-falling assembly (41) further includes a limiting rod (412). The limiting rod (412) is fixedly connected to the inner wall of the upper anti-falling hole (400) and is located on the side of the upper anti-falling plate (411) away from the anti-falling hole (40). When the upper anti-falling plate (411) rotates to fit with the limiting rod (412), the included angle between the upper anti-falling plate (411) and the anti-falling plate (4) is an acute angle.

4. The leachate recirculation spraying system according to claim 1, characterized in that: The anti-falling plate (4) is slidably connected to the inner wall of the storage tank (1), and a support bar (14) for supporting the anti-falling plate (4) is fixedly connected to the inner wall of the storage tank (1). A top wall of the anti-falling plate (4) is fixedly connected to an anti-falling pipe (42) with both ends open. The anti-falling pipe (42) and the anti-falling plate (4) form a box structure with an upward opening. A pressure rod (44) is slidably connected to the top wall of the storage tank (1), and the top wall of the anti-falling pipe (42) abuts against the bottom wall of the pressure rod (44).

5. The leachate recirculation spraying system according to claim 4, characterized in that: A chute (460) is provided at the bottom of the inner side wall of the anti-falling pipe (42). The length direction of the chute (460) is parallel to the top wall of the anti-falling plate (4). A sliding rod (46) is slidably connected in the chute (460). The sliding rod (46) is fixedly connected to a connecting rod (45). The end of the connecting rod (45) away from the sliding rod (46) is detachably connected to the pressure rod (44).

6. The leachate recirculation spraying system according to claim 1, characterized in that: A receiving groove (540) is provided on the bottom wall of the slider (5) along its sliding direction. A scraping plate (54) is fixedly provided at the end of the inner wall of the receiving groove (540) close to the anti-falling plate (4). The end of the scraping plate (54) away from the receiving groove (540) abuts against the top of the filter plate (2). A cleaning brush (55) for brushing the top wall of the filter plate (2) is further provided inside the receiving groove (540).

7. The leachate recirculation spraying system according to claim 6, characterized in that: An installation groove (550) is provided on the bottom wall of the slider (5) along the direction perpendicular to its sliding path. The cleaning brush (55) includes a brush handle (551) and bristles (552) connected to each other. The brush handle (551) is located in the installation groove (550) and is slidably connected to the inner wall of the installation groove (550). The bristles (552) extend out of the installation groove (550) and abut against the filter plate (2).

8. A recirculation spraying method based on the leachate recirculation spraying system according to any one of claims 1 - 7, characterized in that, It includes the following steps: S1. Put the garbage into the storage tank (1) from the pre-seepage area (15) of the garbage. The garbage in the pre-seepage area (15) is conveyed to the middle seepage area (16) through the anti-lifting hole (30) for water drainage. S2. After the garbage in the middle seepage area (16) finishes draining water, drive the slider (5) to slide downward toward the lower part of the post-seepage area (17) through the driving member (51). The garbage in the middle seepage area (16) is squeezed to the lower part of the post-seepage area (17) and finally conveyed to the post-seepage area (17) through the anti-falling hole (40). S3. Drive the slider (5) to slide away from the lower part of the post-leaching area (17) by the driving member (51) until the slider (5) is no longer below the lifting hole (30). Thereafter, the garbage in the pre-leaching area (15) is conveyed from the lifting hole (30) to the middle leaching area (16) for water drainage; S4. Repeat steps S2 and S3, continuously remove the garbage in the post-leaching area (17), and continuously supplement the garbage in the pre-leaching area (15) to maintain the continuous operation of the leachate backspray system; When the incinerator (11) needs to be cooled down, use the conveying pipeline (12) to pump the leachate below the filter plate (2) into the incinerator (11) for backspray.

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