Treatment device for recycling ammonia nitrogen in landfill leachate

Abstract

The utility model relates to the technical field of garbage treatment, and discloses a treatment device for recycling ammonia nitrogen in garbage leachate, the treatment device comprises a sewage collection tank, the outer surface of the sewage collection tank is fixedly connected with a bracket, the interior of the bracket is fixedly connected with a reaction kettle, and a liquid inlet pipe is fixedly inserted into the reaction kettle; and a water pump is arranged on the outer circumferential surface of the liquid inlet pipe. According to the treatment device for recycling the ammonia nitrogen in the landfill leachate, solid MgNHPO can be discharged out of the reaction kettle along with the treated leachate by arranging a flow guide slope, a liquid discharge pipe and a valve, and the filter screen is convenient to disassemble and clean by arranging an outer frame and a filter screen which are in sliding connection with the sewage collecting tank, so that the purposes that the solid MgNHPO can be prevented from being accumulated at the bottom of the reaction kettle, and the ammonia nitrogen in the landfill leachate can be recycled are achieved. The device has the advantages that normal treatment operation is affected, the filter screen is prevented from being easily blocked, the discharge effect of treated percolate is affected, and the problems that a filter screen of an existing treatment device is easily blocked, and solid MgNHPO is accumulated at the bottom of the treatment device and is inconvenient to clean are solved.

Description

Technical Field

[0001] The present application relates to the technical field of garbage treatment, and in particular to a treatment device for recovering ammonia nitrogen in garbage leachate. Background Art

[0002] Garbage is solid waste generated in human daily life and production. Due to its large discharge volume, complex and diverse composition, and its pollution, resource and social nature, it needs to be harmlessly, resource-based, reduced and socially treated. If it is not properly handled, it will pollute the environment, affect environmental hygiene, waste resources, and undermine the safety of production and life.

[0003] The existing patent (publication number: CN 213446400 U) discloses a treatment device for recovering ammonia nitrogen in landfill leachate, which achieves the effect of removing ammonia nitrogen by chemical reaction and improves reliability; it includes a base, a suction pump front pipe, a suction pump, a suction pump rear pipe, a reaction barrel, a filter chamber, a withdrawal pump front pipe, a withdrawal pump, a withdrawal pump rear pipe, a stirring motor, a stirring reducer, a stirring shaft, a stirring blade, a filter screen, an addition pipe, a funnel, a control support, a control box and an operation panel, the middle of the top end of the base is connected to the bottom end of the reaction barrel, the middle of the left side of the top end of the base is connected to the bottom end of the suction pump, the outer wall of the filter screen is connected to the inner wall of the filter chamber, the front left part of the top end of the base is connected to the bottom end of the control support, the top of the control support is connected to the middle of the bottom end of the control box, the left side of the front end of the control box is connected to the inner end of the operation panel, the bottom end of the funnel is connected to the top end of the addition pipe, and the right end of the addition pipe is connected to the middle of the left side of the reaction barrel.

[0004] The filter screen of the above-mentioned treatment device is prone to clogging, and solid MgNH4PO4 will accumulate at the bottom of the treatment device, which is inconvenient to clean and affects the normal treatment operation. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a treatment device for recovering ammonia nitrogen in leachate, which has the advantages of easy cleaning of the filter, avoiding filter clogging, and preventing solid MgNH4PO4 from accumulating and affecting normal treatment operations. It solves the problem that the filter of the existing treatment device is prone to clogging, and solid MgNH4PO4 will accumulate at the bottom of the treatment device, which is inconvenient to clean and affects normal treatment operations.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a treatment device for recovering ammonia nitrogen in landfill leachate, comprising a sewage collecting tank, a bracket fixedly connected to the outer surface of the sewage collecting tank, a reactor fixedly connected to the inside of the bracket, a liquid inlet pipe fixedly connected to the inside of the reactor, a water pump provided on the outer circumferential surface of the liquid inlet pipe, the bottom surface of the water pump fixedly connected to the upper surface of the bracket, a feeding pipe fixedly connected to the inside of the reactor, a drain pipe provided at the bottom of the reactor, a valve provided on the outer circumferential surface of the drain pipe, and a drain port provided inside the sewage collecting tank.

[0007] Through the above scheme, since the filter screen of the existing treatment device is prone to clogging, and the solid MgNHPO will accumulate at the bottom of the treatment device, which is inconvenient to clean and affects the normal treatment operation, the diversion slope, the drain pipe and the valve are provided to enable the solid MgNHPO to be discharged from the reactor along with the treated leachate, thereby avoiding the accumulation of solid MgNHPO at the bottom of the reactor and affecting the normal treatment operation. By providing an outer frame and a filter screen that are slidably connected to the sewage collection tank, the filter screen can be easily disassembled and cleaned, thereby avoiding the filter screen from being easily clogged and affecting the discharge of the treated leachate.

[0008] Furthermore, a motor is fixedly connected to the upper surface of the reactor, a rotating shaft is rotatably connected to the lower side of the motor, the outer circumference of the rotating shaft is fixedly connected to first stirring blades arranged equidistantly, and the outer circumference of the rotating shaft is fixedly connected to two second stirring blades.

[0009] Through the above scheme, the leachate is stirred by the first stirring blade and the second stirring blade, so that the leachate and the magnesium phosphate solution are fully mixed and reacted, thereby improving the processing efficiency.

[0010] Furthermore, a guide slope is provided at the bottom of the reactor, and the guide slope is inclined downward at a certain angle.

[0011] Through the above scheme, the solid MgNHPO can be discharged from the reactor along with the treated leachate, thereby preventing the solid MgNHPO from accumulating at the bottom of the reactor and affecting the normal treatment operation.

[0012] Furthermore, an outer frame is slidably inserted into the interior of the sewage collecting tank, and a filter is fixedly connected to the interior of the outer frame.

[0013] Through the above scheme, the solid MgNHPO is intercepted by the filter, so that the ammonia nitrogen content of the extracted solution is greatly reduced.

[0014] Furthermore, four bolts are slidably inserted inside the outer frame, and the outer circumferential surface of each bolt is connected to the internal thread of the sewage collection tank.

[0015] Through the above solution, the outer frame and the sewage collecting tank can be connected and fixed by bolts, thereby increasing the stability of the filter during operation.

[0016] Furthermore, a sealing strip is fixedly connected to the bottom surface of the outer frame, and the bottom surface of the sealing strip is in contact with the inner bottom wall of the sewage collecting tank.

[0017] Through the above solution, the sealing strip can seal the gap between the outer frame and the sewage collecting tank, thereby preventing the treated leachate from flowing out of the gap between the outer frame and the sewage collecting tank.

[0018] Furthermore, a push plate is slidably connected to the inner wall of the sewage collecting tank, and the bottom surface of the push plate is in contact with the inner bottom wall of the sewage collecting tank.

[0019] Through the above solution, the solid MgNHPO can be pushed to one side by the push plate, so as to facilitate the cleaning of the solid MgNHPO.

[0020] Furthermore, two slide plates are fixedly connected to the outer surface of the push plate, and the outer surface of each slide plate is slidably connected to the sewage collecting tank through an empty groove opened inside the sewage collecting tank.

[0021] Through the above scheme, the push plate is forced to always move horizontally, thereby increasing the stability of the push plate movement.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The treatment device for recovering ammonia nitrogen in landfill leachate is provided with a diversion slope, a liquid discharge pipe and a valve, so that solid MgNHPO can be discharged from a reactor along with the treated leachate, and an outer frame and a filter screen slidably connected to a sewage collection tank are provided, so that the filter screen is easy to disassemble and clean, thereby achieving the effect of preventing solid MgNHPO from accumulating at the bottom of the reactor and affecting normal treatment operations, and preventing the filter screen from being easily blocked and affecting the discharge of the treated leachate, thereby solving the problem that the filter screen of the existing treatment device is easily blocked, and the solid MgNHPO is accumulated at the bottom of the treatment device and is inconvenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0025] Figure 2 This is the overall front view of the application;

[0026] Figure 3 This is the structural diagram of the reactor for this application;

[0027] Figure 4 This is the structural diagram of the sewage collection tank for this application.

[0028] In the figure:

[0029] 1. Sewage collecting tank; 2. Bracket; 3. Reactor; 4. Liquid inlet pipe; 5. Water pump; 6. Feeding pipe; 7. Motor; 8. Rotating shaft; 9. First stirring blade; 10. Second stirring blade; 11. Drain pipe; 12. Valve; 13. Diversion slope; 14. Drain port; 15. Outer frame; 16. Filter; 17. Sealing strip; 18. Push plate; 19. Slide plate; 20. Bolts. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 3 A treatment device for recovering ammonia nitrogen in landfill leachate in this embodiment includes a sewage collecting tank 1, a bracket 2 is fixedly connected to the outer surface of the sewage collecting tank 1, a reactor 3 is fixedly connected to the inside of the bracket 2, a liquid inlet pipe 4 is fixedly inserted into the reactor 3, a water pump 5 is provided on the outer circumferential surface of the liquid inlet pipe 4, the bottom surface of the water pump 5 is fixedly connected to the upper surface of the bracket 2, a feeding pipe 6 is fixedly inserted into the reactor 3, a drain pipe 11 is provided at the bottom of the reactor 3, a valve 12 is provided on the outer circumferential surface of the drain pipe 11, and a drain port 14 is opened inside the sewage collecting tank 1.

[0032] See also Figure 1 , Figure 2 and Figure 3 A motor 7 is fixedly connected to the upper surface of the reactor 3, a rotating shaft 8 is rotatably connected to the lower part of the motor 7, first stirring blades 9 arranged equidistantly are fixedly connected to the outer circumferential surface of the rotating shaft 8, and two second stirring blades 10 are fixedly connected to the outer circumferential surface of the rotating shaft 8. The leachate is stirred by the first stirring blades 9 and the second stirring blades 10, so that the leachate and the magnesium phosphate solution are fully mixed and reacted, thereby improving the processing efficiency.

[0033] See also Figure 3 A guide slope 13 is provided at the bottom of the reactor 3, and the guide slope 13 is inclined downward at a certain angle, so that the solid MgNH4PO4 can be discharged from the reactor 3 along with the treated leachate, thereby preventing the solid MgNH4PO4 from accumulating at the bottom of the reactor 3 and affecting the normal processing operation.

[0034] See also Figure 1 and Figure 4An outer frame 15 is slidably inserted inside the sewage collection tank 1, and a filter screen 16 is fixedly connected inside the outer frame 15. The solid MgNH4PO4 is intercepted by the filter screen 16, so that the ammonia nitrogen content of the extracted solution is greatly reduced.

[0035] See also Figure 1 and Figure 4 Four bolts 20 are slidably inserted inside the outer frame 15, and the outer circumferential surface of each bolt 20 is connected to the internal thread of the sewage collecting tank 1. The outer frame 15 and the sewage collecting tank 1 can be connected and fixed by the bolts 20, thereby increasing the stability of the filter screen 16 during operation.

[0036] See also Figure 4 A sealing strip 17 is fixedly connected to the bottom surface of the outer frame 15, and the bottom surface of the sealing strip 17 contacts the inner bottom wall of the sewage collecting tank 1. The sealing strip 17 can seal the gap between the outer frame 15 and the sewage collecting tank 1 to prevent the treated leachate from flowing out of the gap between the outer frame 15 and the sewage collecting tank 1.

[0037] See also Figure 1 and Figure 4 The inner wall of the sewage collecting tank 1 is slidably connected with a push plate 18, and the bottom surface of the push plate 18 contacts the inner bottom wall of the sewage collecting tank 1. The solid MgNH4PO4 can be pushed to one side by the push plate 18, so as to facilitate the cleaning of the solid MgNH4PO4.

[0038] See also Figure 1 and Figure 4 Two slide plates 19 are fixedly connected to the outer surface of the push plate 18. The outer surface of each slide plate 19 is slidably connected to the sewage collecting tank 1 through an empty groove opened inside the sewage collecting tank 1, which prompts the push plate 18 to always move horizontally and increase the stability of the movement of the push plate 18.

[0039] In the present embodiment, a treatment device for recovering ammonia nitrogen in landfill leachate is provided. By setting a diversion slope 13, a drain pipe 11 and a valve 12, solid MgNH4PO4 can be discharged from the reactor 3 along with the treated leachate. By setting an outer frame 15 and a filter screen 16 that are slidably connected to the sewage collection tank 1, the filter screen 16 is easy to disassemble and clean, thereby preventing the solid MgNH4PO4 from accumulating at the bottom of the reactor 3 and affecting the normal treatment operation, and preventing the filter screen 16 from being easily blocked and affecting the discharge of the treated leachate. The problem that the filter screen 16 of the existing treatment device is easily blocked and the solid MgNH4PO4 accumulates at the bottom of the treatment device, which is inconvenient to clean, is solved.

[0040] It should be noted that a handle is provided on the upper surface of the outer frame 15 , so that the outer frame 15 and the filter 16 can be taken and placed conveniently through the handle.

[0041] The working principle of the above embodiment is:

[0042] When it is necessary to treat the ammonia nitrogen in the landfill leachate, start the water pump 5 to pump the leachate into the reactor 3 through the liquid inlet pipe 4, then put the phosphatase solution into the reactor 3 through the feeding pipe 6, start the motor 7 as a power to drive the first stirring blade 9 and the second stirring blade 10 to stir the leachate through the rotating shaft 8, so as to promote the leachate and the phosphatase solution to fully mix and react, so as to remove the ammonia nitrogen in the landfill leachate. Solid MgNH4PO4 will precipitate during the reaction. After the reaction is completed, the drain pipe 11 is opened through the valve 12 to promote the solid MgNH4PO4 to accompany the treated leachate on the diversion slope 13. The treated leachate will pass through the filter screen 16 and then be discharged to the outside through the drain port 14. The solid MgNH4PO4 will be intercepted by the filter screen 16 and slowly settle to the bottom of the sewage collecting tank 1. The outer frame 15 can be installed and disassembled by the bolts 20, and then the filter screen 16 can be cleaned to prevent the filter screen 16 from being easily blocked. When it is necessary to clean the solid MgNH4PO4 precipitated at the bottom of the sewage collecting tank 1, the outer frame 15 is first removed, and then the push plate 18 is pushed. The solid MgNH4PO4 is pushed to the position of the drain port 14 by the push plate 18 to clean the solid MgNH4PO4.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A treatment device for recovering ammonia nitrogen from landfill leachate, comprising a sewage collection tank (1), characterized in that: The outer surface of the sewage collecting tank (1) is fixedly connected to a bracket (2), the interior of the bracket (2) is fixedly connected to a reactor (3), the interior of the reactor (3) is fixedly plugged with a liquid inlet pipe (4), the outer circumferential surface of the liquid inlet pipe (4) is provided with a water pump (5), the bottom surface of the water pump (5) is fixedly connected to the upper surface of the bracket (2), a feeding pipe (6) is fixedly plugged into the interior of the reactor (3), a liquid discharge pipe (11) is provided at the bottom of the reactor (3), a valve (12) is provided on the outer circumferential surface of the liquid discharge pipe (11), and a liquid discharge port (14) is provided inside the sewage collecting tank (1).

2. The device for recovering ammonia nitrogen from landfill leachate according to claim 1, characterized in that: A motor (7) is fixedly connected to the upper surface of the reaction kettle (3); a rotating shaft (8) is rotatably connected to the lower side of the motor (7); first stirring blades (9) arranged equidistantly are fixedly connected to the outer circumferential surface of the rotating shaft (8); and two second stirring blades (10) are fixedly connected to the outer circumferential surface of the rotating shaft (8).

3. The device for recovering ammonia nitrogen from landfill leachate according to claim 1, characterized in that: A guide slope (13) is provided at the bottom of the reaction kettle (3), and the guide slope (13) is inclined downward at a certain angle.

4. The device for recovering ammonia nitrogen from landfill leachate according to claim 1, characterized in that: An outer frame (15) is slidably inserted into the interior of the sewage collecting tank (1), and a filter screen (16) is fixedly connected to the interior of the outer frame (15).

5. The device for recovering ammonia nitrogen from landfill leachate according to claim 4, characterized in that: Four bolts (20) are slidably inserted into the interior of the outer frame (15), and the outer circumferential surface of each bolt (20) is connected to the internal thread of the sewage collecting tank (1).

6. The device for recovering ammonia nitrogen from landfill leachate according to claim 4, characterized in that: A sealing strip (17) is fixedly connected to the bottom surface of the outer frame (15), and the bottom surface of the sealing strip (17) is in contact with the inner bottom wall of the sewage collecting tank (1).

7. The device for recovering ammonia nitrogen from landfill leachate according to claim 1, characterized in that: The inner wall of the sewage collecting tank (1) is slidably connected to a push plate (18), and the bottom surface of the push plate (18) is in contact with the inner bottom wall of the sewage collecting tank (1).

8. The device for recovering ammonia nitrogen from landfill leachate according to claim 7, characterized in that: Two slide plates (19) are fixedly connected to the outer surface of the push plate (18), and the outer surface of each slide plate (19) is slidably connected to the sewage collecting tank (1) via a hollow groove opened inside the sewage collecting tank (1).

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