Precipitation device for leachate treatment

Abstract

The utility model discloses a precipitation device for leachate treatment, which comprises a precipitation tank, the left end of the precipitation tank is inserted with a connecting pipe, the top end of the connecting pipe is sleeved with a filtering outer cylinder, the left side of the filtering outer cylinder is inserted with a feeding pipe, the top end of the filtering outer cylinder is clamped with a top cover, and the circumferential inner wall of the filtering outer cylinder is clamped with a limiting ring. The bottom of the limiting ring is connected with a filtering inner cylinder in a clamped mode, a plurality of filtering holes are formed in the filtering inner cylinder, a plurality of barbs are fixedly connected to the outer wall of the circumference of the limiting ring, an overflow pipe is inserted into the right side of the filtering outer cylinder, the other end of the overflow pipe is inserted into the top of the sedimentation tank, and an overflow pipe is inserted into the right side of the filtering outer cylinder. And a liquid outlet pipe is inserted into the right end of the filtering outer cylinder. According to the utility model, the leachate passes through the filtering holes of the filtering inner cylinder, so that garbage in the leachate is filtered, and the leachate is pretreated, so that residues are prevented from entering the sedimentation tank, and the sedimentation effect is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of leachate treatment, in particular to a precipitation device used for leachate treatment. Background Art

[0002] Garbage leachate refers to high-concentration organic wastewater generated during the stacking and landfilling of garbage. The wastewater has high COD, BOD, SS and salt content, and direct discharge will cause great pollution to the environment. Sedimentation is the process of using gravity or electrochemical principles to make solid particles settle in liquid. By adding precipitants or changing the pH value, temperature and other conditions of the solution, the suspended matter in the solution can be condensed into larger particles, thereby facilitating subsequent separation operations.

[0003] At present, most of the existing leachate is not pre-treated during sedimentation treatment, resulting in some residues entering the sedimentation tank, affecting the sedimentation effect, and easily clogging the feed pipe, which is inconvenient to clean, thereby affecting the sedimentation treatment effect of the leachate. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that most of the existing leachate is not pre-treated during precipitation treatment, resulting in a portion of residue entering the sedimentation tank, affecting the precipitation effect, and easily clogging the feed pipe, making it inconvenient to clean, thereby affecting the precipitation treatment effect of the leachate, and a precipitation device for leachate treatment is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sedimentation device for treating leachate comprises a sedimentation tank, wherein a connecting pipe is inserted at the left end of the sedimentation tank, a filter outer cylinder is sleeved at the top end of the connecting pipe, a feed pipe is inserted at the left side of the filter outer cylinder, a top cover is clamped at the top end of the filter outer cylinder, a limiting ring is clamped at the circumferential inner wall of the filter outer cylinder, a filter inner cylinder is clamped at the bottom of the limiting ring, a plurality of filter holes are provided on the filter inner cylinder, a plurality of barbs are fixedly connected to the circumferential outer wall of the limiting ring, an overflow pipe is inserted at the right side of the filter outer cylinder, the other end of the overflow pipe is plugged into the top of the sedimentation tank, and a liquid outlet pipe is inserted at the right end of the filter outer cylinder.

[0007] Furthermore, a sealing gasket is clamped on the top end of the filter outer cylinder.

[0008] Furthermore, a first valve is provided on the feed pipe.

[0009] Furthermore, a second valve is provided on the overflow pipe.

[0010] Furthermore, a drug injection tube is inserted into the top of the sedimentation tank, and a silicone cap is clamped on the top of the drug injection tube.

[0011] Furthermore, a cleaning pipe is inserted into the right end of the sedimentation tank.

[0012] Furthermore, a third valve is provided on both the liquid outlet pipe and the cleaning pipe.

[0013] The beneficial effects of the utility model are:

[0014] 1. The leachate passes through the filter holes of the filter inner tube to filter the garbage in the leachate, and then the leachate is pre-treated to prevent the residue from entering the sedimentation tank to avoid affecting the sedimentation effect.

[0015] 2. Discharge the leachate into the sedimentation tank from the overflow pipe, open the top cover, take out the limit ring and the filter inner cylinder together, and then clean the filter inner cylinder quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a sedimentation device for leachate treatment proposed by the utility model;

[0017] Figure 2 This is a side structural schematic diagram of a sedimentation device for leachate treatment proposed by the utility model;

[0018] Figure 3 The utility model discloses a cross-sectional structural schematic diagram of a sedimentation device for leachate treatment.

[0019] In the figure: 1. sedimentation tank; 2. connecting pipe; 3. filter outer cylinder; 4. top cover; 5. sealing gasket; 6. feed pipe; 7. first valve; 8. overflow pipe; 9. second valve; 10. limit ring; 11. filter inner cylinder; 12. filter hole; 13. barb; 14. injection tube; 15. silicone cover; 16. liquid outlet pipe; 17. cleaning pipe; 18. third valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3A sedimentation device for treating leachate comprises a sedimentation tank 1, a connecting pipe 2 is inserted at the left end of the sedimentation tank 1, a filter outer cylinder 3 is sleeved at the top end of the connecting pipe 2, a feed pipe 6 is inserted at the left side of the filter outer cylinder 3, leachate is transported into the filter outer cylinder 3 from the feed pipe 6, a top cover 4 is clamped at the top end of the filter outer cylinder 3, a limiting ring 10 is clamped at the inner wall of the circumference of the filter outer cylinder 3, a filter inner cylinder 11 is clamped at the bottom of the limiting ring 10, and a filter inner cylinder 11 is provided on the filter inner cylinder 11 There are multiple filter holes 12, and the leachate passes through the filter holes 12 of the filter inner cylinder 11, so as to filter the garbage in the leachate. The circumferential outer wall of the limit ring 10 is welded with multiple barbs 13. The design of the barbs 13 prevents the garbage from floating up to avoid clogging the feed pipe 6. The right side of the filter outer cylinder 3 is connected with an overflow pipe 8, and the other end of the overflow pipe 8 is connected with the top of the sedimentation tank 1. The right end of the filter outer cylinder 3 is connected with a liquid outlet pipe 16, and the supernatant is discharged from the liquid outlet pipe 16.

[0022] A sealing gasket 5 is clamped on the top of the filter outer cylinder 3, and the sealing gasket 5 is used to seal the filter outer cylinder 3 and the top cover 4. A first valve 7 is arranged on the feed pipe 6, and a second valve 9 is arranged on the overflow pipe 8. When the filter hole 12 of the filter inner cylinder 11 is blocked, the second valve 9 is opened to discharge the leachate from the overflow pipe 8 into the sedimentation tank 1. An injection tube 14 is inserted at the top of the sedimentation tank 1, and a silicone cover 15 is clamped on the top of the injection tube 14. The precipitant is put into the sedimentation tank 1 from the injection tube 14, so that the leachate can be better precipitated. A cleaning tube 17 is inserted at the right end of the sedimentation tank 1, and the sediment is discharged from the cleaning tube 17. A third valve 18 is provided on the liquid outlet pipe 16 and the cleaning tube 17.

[0023] The working principle of this embodiment is as follows: when in use, first, open the first valve 7, and transfer the leachate from the feed pipe 6 to the filter outer cylinder 3, then, the leachate passes through the filter hole 12 of the filter inner cylinder 11, so as to filter the garbage in the leachate, wherein the design of the barb 13 prevents the garbage from floating up to avoid clogging the feed pipe 6, then, the leachate is transferred to the sedimentation tank 1 through the connecting pipe 2 for sedimentation, during sedimentation, open the silicone cover 15, and put the precipitant into the sedimentation tank 1 from the injection pipe 14, so that the leachate is better precipitated, and the precipitation produces supernatant and sediment, then, open the third valve 18 on the liquid outlet pipe 16, and the supernatant is discharged from the liquid outlet pipe 16, and then open the third valve 18 on the cleaning pipe 17, and the sediment is discharged from the cleaning pipe 17;

[0024] When the filter hole 12 of the filter inner cylinder 11 is blocked, close the first valve 7, open the second valve 9, discharge the leachate from the overflow pipe 8 into the sedimentation tank 1, then open the top cover 4, take out the limit ring 10 and the filter inner cylinder 11 together, and then clean the filter inner cylinder 11.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sedimentation device for treating leachate, comprising a sedimentation tank (1), characterized in that: The left end of the sedimentation tank (1) is plugged with a connecting pipe (2), the top end of the connecting pipe (2) is sleeved with a filter outer cylinder (3), the left side of the filter outer cylinder (3) is plugged with a feed pipe (6), the top end of the filter outer cylinder (3) is clamped with a top cover (4), the circumferential inner wall of the filter outer cylinder (3) is clamped with a limit ring (10), the bottom of the limit ring (10) is clamped with a filter inner cylinder (11), a plurality of filter holes (12) are provided on the filter inner cylinder (11), a plurality of barbs (13) are fixedly connected to the circumferential outer wall of the limit ring (10), an overflow pipe (8) is plugged with the right side of the filter outer cylinder (3), the other end of the overflow pipe (8) is plugged with the top of the sedimentation tank (1), and a liquid outlet pipe (16) is plugged with the right end of the filter outer cylinder (3).

2. A precipitation device for leachate treatment according to claim 1, characterized in that: A sealing gasket (5) is clamped on the top end of the filter outer cylinder (3).

3. A precipitation device for leachate treatment according to claim 1, characterized in that: The feed pipe (6) is provided with a first valve (7).

4. A precipitation device for leachate treatment according to claim 1, characterized in that: The overflow pipe (8) is provided with a second valve (9).

5. A precipitation device for leachate treatment according to claim 1, characterized in that: A drug injection tube (14) is inserted into the top of the sedimentation tank (1), and a silica gel cover (15) is clamped on the top of the drug injection tube (14).

6. A precipitation device for leachate treatment according to claim 1, characterized in that: A cleaning pipe (17) is inserted into the right end of the sedimentation tank (1).

7. A precipitation device for leachate treatment according to claim 1, characterized in that: The liquid outlet pipe (16) and the cleaning pipe (17) are both provided with a third valve (18).

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