A flocculation purification device for treating landfill leachate
The flocculation and purification device, with its cross-nozzle design and automatic filter residue cleaning, solves the problems of uneven flocculant mixing and easy filter clogging, achieving efficient flocculation treatment and simplified filter maintenance.
Patent Information
- Application Number
- CN202423136920.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-19
AI Technical Summary
In existing flocculation treatment devices, the flocculant and leachate are not mixed evenly, the flocculated sediment is easily broken up, which increases the difficulty of filtration and makes the filter screen easy to clog, requiring frequent replacement.
The system employs a cross-nozzle design, with the outlet pipes of the leachate circulation tank and the flocculant separator connected to the inlet of the mixing tank, forming a cross-impact water flow to achieve uniform mixing. After mixing, the sediment is intercepted by a fine filter screen, the filtrate is circulated, and the filter residue is cleaned through a sludge suction pipe.
It achieves thorough mixing of flocculant and leachate, avoids breaking up flocculent precipitates, reduces filter clogging, simplifies filter cleaning, and reduces manpower and material consumption.
Smart Images
Figure CN223607086U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flocculation treatment device technical field especially relates to a flocculation purification device for processing landfill leachate. BACKGROUND
[0002] The current flocculation treatment device uses, usually is to pour flocculants directly into the device and mixes with leachate, such mixed is not enough uniform, and the reaction is slow. In order to promote mixing, generally set up stirring mechanism in the device interior and stir, but also will impact the flocculation precipitate formed, once the flocculation precipitate is broken, not only will improve the subsequent filtration difficulty, and with the flocculation precipitate's continuous accumulation, filter screen is easier to be blocked, need often change filter screen, consume manpower and material resources. SUMMARY
[0003] The utility model wants to solve the technical problem to provide a flocculation purification device for processing landfill leachate, aims at solving the technical problem that the flocculation agent mixes with leachate not enough uniform in prior art, flocculation precipitate is easy to be broken and increases filtration difficulty, filter screen needs to be replaced frequently.
[0004] The utility model discloses a flocculation purification device for processing landfill leachate, including reaction device body, the upper portion of reaction device body is equipped with the water inlet, and the lower portion is equipped with the water outlet, the top of inside reaction device body is equipped with the mixing box, and the leachate circulation tank and flocculant liquid distributor are located the left and right sides of mixing box, be equipped with first spray head, second spray head in mixing box and leachate circulation tank and flocculant liquid distributor are linked with respectively, first spray head and second spray head are all inclined and set up to the up, and the spray range of first spray head and second spray head is mutually overlapped. The inside of reaction device body is equipped with the coarse filter screen and fine filter screen arranged in the upper and lower, the bottom of mixing box is equipped with the mixing outlet, and the mixing outlet passes through coarse filter screen and stretches to the upper of fine filter screen, the circulation water pump is connected on the reaction device body below fine filter screen, and the circulation water pump is connected with leachate circulation tank, and the flocculant liquid distributor is connected with the pressurizing pump, the upper of coarse filter screen and fine filter screen still is equipped with the suction residue pipe respectively.
[0005] Further, the left and right sides of the mixing box are respectively provided with a plurality of arrayed inlet ports, the inlet ports on the two sides are symmetrically arranged, each inlet port on the left side is connected with a first spray head, and each inlet port on the right side is connected with a second spray head.
[0006] Further, the first spray head and the second spray head are symmetrically arranged.
[0007] Further, the percolate circulating tank and the flocculating agent distributing tank are respectively provided with a plurality of liquid outlet pipes, the liquid outlet pipes of the percolate circulating tank are respectively and one by one inserted into the liquid inlets on the left side of the mixing tank, and the liquid outlet pipes of the flocculating agent distributing tank are respectively and one by one inserted into the liquid inlets on the right side of the mixing tank.
[0008] Further, the coarse filter screen and the fine filter screen are both in the shape of "∧", the mixed liquid outlet passes through the middle part of the coarse filter screen and is fixedly connected with the coarse filter screen, and the end of the mixed liquid outlet extends above the middle part of the fine filter screen.
[0009] Further, the circulating water pump is connected with the reaction device body through a circulating liquid inlet pipe, the liquid outlet end of the circulating water pump is connected with a plurality of circulating liquid outlet pipes, and the circulating liquid outlet pipes are connected with the percolate circulating tank.
[0010] Further, the pressurizing pump is installed on the top of the reaction device body, a flocculating agent inlet pipe is connected with the pressurizing pump, and the pressurizing pump is connected with the flocculating agent distributing tank through a flocculating agent outlet pipe.
[0011] Further, the reaction device body on the left and right sides of the coarse filter screen and the fine filter screen is provided with a plurality of suction pipes arranged in front and back, a plurality of suction pipes on the same side are connected with a suction tank, and the suction tank is connected with a negative pressure device.
[0012] Compared with the prior art, the flocculation purification device has the following advantages: the flocculation purification device can filter the landfill leachate first, and then perform circulating treatment on the filtrate, the filtrate and the flocculating agent are sprayed through different nozzles and form cross-impingement water flow, so that sufficient mixing is realized, the flocculation precipitate after mixing reaction is intercepted by the fine filter screen, and the treated filtrate is finally discharged from the water outlet, the mixing mode does not cause the flocculation precipitate to be broken by the stirring mechanism, and sufficient mixing reaction can be ensured; the impurities accumulated on the filter screen can be sucked out through the suction pipe, the filtering effect is not affected, and the filter screen does not need to be replaced, so that the operation is more convenient and simple. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a structural schematic view of the utility model (wherein the dotted line represents the spraying direction of water flow);
[0014] Figure 2 It is a partial enlarged view of A part in Figure 1
[0015] Figure 3 It is a connection top view of the suction pipe and the suction tank in the utility model.
[0016] Wherein: 1, reaction device body; 2, water inlet; 3, water outlet; 4, mixing box; 401, liquid inlet; 402, mixed liquid outlet; 5, leachate circulation tank; 6, flocculant distribution tank; 7, first spray head; 8, second spray head; 9, coarse filter screen; 10, fine filter screen; 11, circulating water pump; 12, pressure pump; 13, suction tube; 14, liquid outlet pipe; 15, circulating liquid inlet pipe; 16, circulating liquid outlet pipe; 17, circulating distribution pipe; 18, flocculant inlet pipe; 19, flocculant outlet pipe; 20, suction tank. DETAILED DESCRIPTION
[0017] The specific embodiments of the utility model for treating landfill leachate flocculation purification device are described below in combination with the drawings.
[0018] Embodiment:
[0019] The specific embodiments of the utility model for treating landfill leachate flocculation purification device are described below in combination with the drawings. Figure 1 It mainly includes reaction device body 1, and the upper part of the reaction device body 1 is provided with water inlet 2, and the lower part is provided with water outlet 3.
[0020] The top of the inside of the reaction device body 1 is provided with mixing box 4, and the left and right sides of the mixing box 4 are respectively provided with leachate circulation tank 5 and flocculant distribution tank 6, and the connection mode of the leachate circulation tank 5 and the flocculant distribution tank 6 with the mixing box 4 is the same. Figure 1 、 Figure 2 The left and right sides of the mixing box 4 are respectively provided with a plurality of arrayed liquid inlets 401, and the liquid inlets 401 on the two sides are symmetrically arranged, and each liquid inlet 401 on the left side is connected with a first spray head 7, and each liquid inlet 401 on the right side is connected with a second spray head 8. The first spray head 7 and the second spray head 8 on the left and right sides are both inclined upward, and the first spray head 7 and the second spray head 8 on the left and right sides are symmetrically arranged, so that the spray ranges of the first spray head 7 and the second spray head 8 overlap each other.
[0021] A plurality of liquid outlet pipes 14 are respectively inserted in the leachate circulation tank 5 and the flocculant distribution tank 6, each liquid outlet pipe 14 on the leachate circulation tank 5 is one-to-one correspondingly inserted in each liquid inlet 401 on the left side of the mixing box 4, so that the leachate circulation tank 5 can be connected with the first spray head 7; each liquid outlet pipe 14 on the flocculant distribution tank 6 is one-to-one correspondingly inserted in each liquid inlet 401 on the right side of the mixing box 4, so that the flocculant distribution tank 6 can be connected with the second spray head 8.
[0022] The reaction device body 1 is internally provided with a coarse filter screen 9 and a fine filter screen 10 arranged in an up-down mode, and the coarse filter screen 9 and the fine filter screen 10 are both in the shape of "∧".
[0023] A circulating water pump 11 is connected to the reaction device body 1 below the fine filter screen 10, the liquid inlet end of the circulating water pump 11 is connected with the reaction device body 1 through a circulating liquid inlet pipe 15, the liquid outlet end of the circulating water pump 11 is connected with a plurality of circulating branch pipes 17 through a circulating liquid outlet pipe 16, and each of the circulating branch pipes 17 is connected with the leachate circulating tank 5.
[0024] A pressurizing pump 12 is mounted on the top of the reaction device body 1 outside, the pressurizing pump 12 is connected with a flocculant inlet pipe 18, and the pressurizing pump 12 is also connected with a flocculant branch tank 6 through a flocculant outlet pipe 19.
[0025] The top of the coarse filter screen 9 and the fine filter screen 10 is also respectively provided with a sludge suction pipe 13, and the sludge suction pipe 13 is connected with a sludge suction tank 20. Figure 1 、 Figure 3 The reaction device body 1 on the left and right sides of the coarse filter screen 9 and the fine filter screen 10 is internally provided with a plurality of sludge suction pipes 13 arranged in a front-rear mode, the sludge suction pipes 13 on the same side are connected with a sludge suction tank 20, and the sludge suction tank 20 is connected with a negative pressure device.
[0026] In the use of the flocculation and purification device, the garbage leachate is introduced into the reaction device body 1 from the water inlet 2, is filtered by the coarse filter screen 9 and the fine filter screen 10, is then pumped into the leachate circulating tank 5 by the circulating water pump 11, is sprayed out from the first nozzle 7, the pressurizing pump 12 is operated, the flocculant is pumped into the flocculant branch tank 6 from the flocculant inlet pipe 18, is then sprayed out from the second nozzle 8, the filtered liquid sprayed out from the first nozzle 7 and the flocculant sprayed out from the second nozzle 8 form a cross-impingement water flow, are fully mixed in the mixing tank 4, and are discharged through the mixing liquid outlet 402, the flocculation and precipitation after the mixing reaction are intercepted by the fine filter screen 10, and the filtered liquid after the treatment is finally discharged from the water outlet 3 after a period of circulating reaction.
[0027] Of course, the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the flocculation and purification device, the purpose is to enable the person skilled in the art to understand the content of the flocculation and purification device and to implement the flocculation and purification device, and the protection scope of the flocculation and purification device cannot be limited by the above-mentioned embodiments. Any modification made according to the spirit and essence of the main technical scheme of the flocculation and purification device should be covered in the protection scope of the flocculation and purification device.
Claims
1. A flocculation purification device for treating landfill leachate, characterized by: The utility model provides a reaction device, including reaction device body (1), the upper portion of reaction device body (1) is equipped with water inlet (2), the lower portion is equipped with water outlet (3), the top inside reaction device body (1) is equipped with mixing box (4), the percolate circulation box (5) and flocculating agent distribution box (6) located the both sides of mixing box (4), be equipped with first shower nozzle (7), second shower nozzle (8) respectively with percolate circulation box (5) and flocculating agent distribution box (6) in mixing box (4) are linked to, first shower nozzle (7) with second shower nozzle (8) are all inclined and set up upwards, and the injection range of first shower nozzle (7) and second shower nozzle (8) is mutually overlapped, the inside reaction device body (1) is equipped with coarse filter screen (9) and fine filter screen (10) arranged in upper and lower, the bottom of mixing box (4) is equipped with mixing outlet (402), mixing outlet (402) passes through coarse filter screen (9) and reaches the top of fine filter screen (10), the reaction device body (1) of fine filter screen (10) below is connected with circulating water pump (11), circulating water pump (11) is connected with percolate circulation box (5), and flocculating agent distribution box (6) is connected with pressurizing pump (12), the top of coarse filter screen (9) and fine filter screen (10) still is equipped with suction residue pipe (13) respectively.
2. The flocculation purification device for treating landfill leachate according to claim 1, characterized in that: The left and right sides of mixing box (4) are equipped with a plurality of arrayed liquid inlets (401), the liquid inlets (401) on both sides are symmetrically arranged, each liquid inlet (401) on the left side is connected with a first shower nozzle (7), and each liquid inlet (401) on the right side is connected with a second shower nozzle (8).
3. The flocculation purification device for treating landfill leachate according to claim 2, characterized in that: The first shower nozzle (7) and the second shower nozzle (8) are symmetrically arranged.
4. The flocculation purification device for treating landfill leachate according to claim 2, characterized in that: A plurality of liquid outlet pipes (14) are inserted into the percolate circulation box (5) and the flocculating agent distribution box (6), respectively, each liquid outlet pipe (14) on the percolate circulation box (5) is inserted into each liquid inlet (401) on the left side of the mixing box (4) one by one, and each liquid outlet pipe (14) on the flocculating agent distribution box (6) is inserted into each liquid inlet (401) on the right side of the mixing box (4) one by one.
5. The flocculation purification device for treating landfill leachate according to claim 1, characterized in that: The coarse filter screen (9) and the fine filter screen (10) are both in the shape of "∧", the mixing outlet (402) passes through the middle of the coarse filter screen (9) and is fixedly connected with the coarse filter screen (9), and the end of the mixing outlet (402) extends above the middle of the fine filter screen (10).
6. The flocculation purification device for treating landfill leachate according to claim 1, characterized in that: The liquid inlet end of the circulating water pump (11) is connected with the reaction device body (1) through a circulating liquid inlet pipe (15), the liquid outlet end of the circulating water pump (11) is connected with a plurality of circulating distribution pipes (17) through a circulating liquid outlet pipe (16), and each circulating distribution pipe (17) is connected with the percolate circulation box (5).
7. The flocculation purification device for treating landfill leachate according to claim 1, characterized in that: The pressurizing pump (12) is installed on the top of the reaction device body (1) outside, a flocculating agent inlet pipe (18) is connected to the pressurizing pump (12), and the pressurizing pump (12) is connected with the flocculating agent distribution tank (6) through a flocculating agent outlet pipe (19).
8. The flocculation purification device for treating landfill leachate according to claim 5, characterized in that: The reaction device body (1) on the left and right sides of the coarse filter screen (9) and the fine filter screen (10) is provided with a plurality of front and rear arranged suction pipes (13), a plurality of suction pipes (13) on the same side are connected with a suction tank (20), and the suction tank (20) is connected with a negative pressure device.