Leachate sewage treatment device with good use effect

Abstract

The utility model discloses a leachate sewage treatment device with a good use effect. The leachate sewage treatment device comprises an oil removal tank and a separation tank, supporting legs are arranged at four corners below the deoiling tank; the separating tank is positioned among the supporting legs; symmetrical liquid outlet pipes are communicated with the lower part of the oil removal tank and are jointly connected with a liquid outlet pipe II through a three-way pipe fitting, and the liquid outlet pipe II extends into the separation tank; a deoiling assembly is arranged in the deoiling box; and a solid leading-out assembly is arranged in the separation box. The oil removal tank and the separation tank are arranged up and down, so that oil can be directly introduced into the separation tank after oil removal and sludge precipitation operation, and the integration degree is high; after being subjected to primary precipitation in the oil removal tank, the water enters the separation tank to be subjected to solid-liquid separation again, and water carried in the precipitation object is separated again, so that the solid-liquid separation effect is improved; and solids separated from the separation box can be directly guided out, so that blockage caused by accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a leachate sewage treatment device with good use effect. Background Art

[0002] During the garbage stacking and landfilling process, biochemical degradation processes such as compaction and fermentation, combined with the seepage of precipitation and groundwater, produce a highly concentrated liquid containing organic and inorganic components known as leachate. Many factors influence the formation of leachate, including rainfall and snowfall in the landfill area, the nature and composition of the garbage, the landfill's anti-seepage treatment, and the site's hydrogeological conditions.

[0003] The water quality of landfill leachate is complex and contains a variety of toxic and harmful inorganic and organic substances. The leachate of kitchen waste also contains grease. When decomposing it, it needs to be separated into solid and liquid and de-oiled first, and then enter the reaction zone for nitrification and reflux denitrification to remove harmful substances. Finally, it can be completed by precipitation. However, in the existing technology, before the chemical reaction step, the landfill leachate needs to undergo multiple separation steps separately, and the leachate needs to be transferred multiple times. The degree of integration is not high. Moreover, de-oiling and sludge precipitation are only performed simultaneously in the de-oiling tank, which will result in incomplete separation. A large amount of water will be extracted in the separated sludge, affecting subsequent operations. In addition, when the solid-liquid separation is performed separately, the solids accumulate on the filter screen and are difficult to clean directly. The above problems affect the overall efficiency of leachate treatment and the effect, and there is room for improvement. Utility Model Content

[0004] The utility model aims to solve the technical problem of low leachate treatment efficiency in the above-mentioned prior art and provide a leachate sewage treatment device with good use effect.

[0005] To solve the above technical problems, the present invention provides a technical solution: a leachate sewage treatment device with good use effect, comprising a de-oiling tank and a separation tank; support legs are provided at the four corners below the de-oiling tank, and the separation tank is located between the support legs; symmetrical liquid outlet pipes are provided below the de-oiling tank, and the liquid outlet pipes are connected to a second liquid outlet pipe through a tee pipe fitting, and the second liquid outlet pipe extends into the separation tank;

[0006] The de-oiling box is provided with an oil-removing assembly; the separation box is provided with a solid export assembly, and the solid export assembly includes a second box cover provided on the separation box; a drain basket is slidingly provided in the separation box, and the bottom plate of the drain basket is mesh-shaped and inclined; a rectangular export outlet is provided on the front of the drain basket near the lower end, and the front of the separation box is provided with a second export outlet corresponding to the export outlet; a connecting rod is provided at the upper end of the drain basket; two metal hooks are provided on the connecting rod; symmetrical side panels are provided on the second box cover, and a motor is provided on the outer side of one of the side panels, and a rotating rod is provided between the two side panels at the output end of the motor, and two sets of pull ropes are wound on the rotating rod, and the lower ends of the pull ropes extend into the drain basket and are connected to the metal hooks, and a through hole that can accommodate the pull ropes is provided on the second box cover.

[0007] Preferably, the de-oiling tank is provided with a tank cover, and the tank cover is provided with two through holes.

[0008] Preferably, the de-oiling assembly includes a partition plate provided at the middle end of the de-oiling tank, a water inlet pipe provided on the right side of the de-oiling tank, and a water outlet pipe provided on the left side; a guide pipe is provided in the de-oiling tank and on the right side of the partition plate, and the guide pipe is T-shaped and extends out of the partition plate; a baffle 1 is provided in the de-oiling tank and on the left side of the partition plate, and baffles 2 and 3 are provided in the de-oiling tank and on the right side of the partition plate.

[0009] Preferably, the front and rear sides of baffle 1, baffle 2 and baffle 3 are all connected to the de-oiling tank; baffle 1 is close to the water inlet pipe; baffle 2 is close to the guide pipe; and baffle 3 is close to the water outlet pipe.

[0010] Preferably, the first outlet and the second outlet are both inclined downward from the inside to the outside.

[0011] Preferably, both sides of the drain basket are provided with limiting sliding blocks, and both sides of the separation box are provided with limiting sliding grooves that can be slidably connected to the limiting sliding blocks.

[0012] The advantages of this utility model compared with the prior art are:

[0013] 1. The de-oiling tank and the separation tank are placed up and down, and can be directly introduced into the separation tank after de-oiling and sludge sedimentation operations, with a high degree of integration, reducing the complex transmission process;

[0014] 2. After the first sedimentation in the de-oiling tank, the product enters the separation tank for solid-liquid separation again, separating the water carried by the sediment again to improve the solid-liquid separation effect;

[0015] 3. The solids separated from the separation box can be directly discharged to avoid accumulation and blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the oil removal tank of the utility model.

[0018] Figure 3 It is a schematic diagram of the internal structure of the de-oiling tank of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the separation box of the utility model.

[0020] Figure 5 It is a schematic diagram of the internal structure of the separation box of the utility model.

[0021] As shown in the figure: 1. De-oiling tank, 2. Separation tank, 3. Support legs, 4. Tank cover, 5. Through hole, 6. Liquid outlet pipe, 7. Liquid outlet pipe 2, 8. Partition plate, 9. Water inlet pipe, 10. Water outlet pipe, 11. Diversion pipe, 12. Baffle 1, 13. Baffle 2, 14. Baffle 3, 15. Tank cover 2, 16. Drain basket, 17. Bottom plate, 18. Lead outlet, 19. Lead outlet 2, 20. Connecting rod, 21. Metal hook, 22. Side panel, 23. Motor, 24. Turning rod, 25. Pull rope, 26. Limit slider. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] Example 1, combined with the attached Figure 1 、 2 A leachate sewage treatment device with good use effect includes a de-oiling tank 1 and a separation tank 2; support legs 3 are provided at the four corners below the de-oiling tank 1, and the separation tank 2 is located between the support legs 3, so that the de-oiling tank 1 and the separation tank 2 can be placed up and down to directly guide the flow; a symmetrical liquid outlet pipe 6 is connected to the bottom of the de-oiling tank 1, and the liquid outlet pipe 6 is connected to a liquid outlet pipe 2 7 through a three-way pipe fitting, and the liquid outlet pipe 2 7 extends into the separation tank 2.

[0024] A box cover 4 is provided on the de-oiling box 1, and two through holes 5, i.e. cleaning ports, are provided on the box cover 4.

[0025] In the above embodiment, the de-oiling tank 1 and the separation tank 2 are placed one above the other, and the sludge after sedimentation is directly pumped into the separation tank 2, and the entrained water is separated twice in the separation tank 2, which not only has a high degree of integration but also has a better separation effect; the two liquid outlet pipes 6 correspond to the two locations where the sludge is accumulated in the de-oiling tank 1, which is convenient for drainage; and by Figure 2 It can be seen that the outer sides of the liquid outlet pipe 6 in the de-oiling tank 1 are all funnel-shaped, and the liquid outlet pipe 6 is located at the lowest point, which is convenient for outlet and less likely to leave residue.

[0026] Example 2, combined with the attached Figure 1-3, a de-oiling assembly is provided in the de-oiling tank 1; the de-oiling assembly includes a partition plate 8 provided in the middle end of the de-oiling tank 1, a water inlet pipe 9 provided on the right side of the de-oiling tank 1, and a water outlet pipe 10 provided on the left side for introducing and exporting the mixed water flow; a guide pipe 11 is provided in the de-oiling tank 1 and on the right side of the partition plate 8, and the guide pipe 11 is T-shaped and extends out of the partition plate 8. The guide pipe 11 diverts the water on the right side of the partition plate 8 to the left side and avoids the upper layer of grease and the lower layer of sludge; a baffle 12 is provided in the de-oiling tank 1 and on the left side of the partition plate 8, and a baffle 2 13 and a baffle 3 14 are provided in the de-oiling tank 1 and on the right side of the partition plate 8.

[0027] The front and rear sides of baffle 1 12 , baffle 2 13 , and baffle 3 14 are all connected to the de-oiling tank 1 ; baffle 1 12 is close to the water inlet pipe 9 ; baffle 2 13 is close to the guide pipe 11 ; and baffle 3 14 is close to the water outlet pipe 10 .

[0028] In the above embodiment, the mixed sewage enters from the water inlet pipe 9, flows down from the right side of the baffle 12, and after standing in the de-oiling tank 1, the grease therein rises, and the solid impurities such as sludge fall and settle. The water body is located in the middle and enters the left side of the partition plate 8 through the diversion pipe 11 for secondary operation. After repeating the above operation once, the grease contained in the water body floats on the surface of the de-oiling tank 1. In actual application, the diversion pipe 11 is set to be higher than the liquid level, so as to block the grease on the right side of the partition plate 8. Finally, most of the grease is located on the right side of the partition plate 8, and only a small part is located on the left side. The concentration is high, and the grease can be extracted through the through hole 5; the water body can be extracted through the water outlet 10; the sludge and other solids are settled at the bottom of the de-oiling tank 1, and are pumped into the separation box 2 through the liquid outlet pipe 6 and the liquid outlet pipe 2 7, and the water contained in the solid impurities is further separated.

[0029] Example 3, combined with the attached Figure 1 、 4 5. A solid derivation assembly is provided in the separation box 2, and the solid derivation assembly includes a second box cover 15 provided on the separation box 2; a drain basket 16 is provided in the separation box 2 for sliding, and limit sliders 26 are provided on both sides of the drain basket 16, and limit chutes that can be slidably connected to the limit sliders 26 are provided on both sides of the separation box 2; the bottom plate 17 of the drain basket 16 is mesh-shaped and inclined; a rectangular derivation port 18 is provided on the front of the drain basket 16 and near the lower end, and a second derivation port 19 that can correspond to the derivation port 18 is provided on the front of the separation box 2. The outlet 18 and the second outlet 19 are both inclined downward from the inside to the outside; a connecting rod 20 is provided at the upper end of the drain basket 16; two metal hooks 21 are provided on the connecting rod 20; symmetrical side panels 22 are provided on the second box cover 15, and a motor 23 is provided on the outer side of one of the side panels 22. The output end of the motor 23 extends into a rotating rod 24 provided between the two side panels 22, and two sets of pull ropes 25 are wound on the rotating rod 24. The lower ends of the pull ropes 25 extend into the drain basket 16 and are connected to the metal hooks 21. A through hole that can accommodate the pull ropes 25 is provided on the second box cover 15.

[0030] In the above embodiment, the mixture first enters the drain basket 16. At this time, since the guide outlet 18 and the second guide outlet 19 do not correspond to each other, a closure is formed, so that no solid or liquid can be discharged; the solid sludge and the like in the mixture are intercepted by the bottom plate 17 and accumulated at the lowest point of the bottom plate 17, and will not be spread out and accumulated, so as not to cause blockage; when cleaning is required, the motor 23 drives the rotating rod 24 to rotate, and the pull rope 25 drives the drain basket 16 to move upward until the guide outlet 18 corresponds to the second guide outlet 19, so that the solid impurities on the bottom plate 17 directly slide out along the guide outlet 18 and the second guide outlet 19, making cleaning convenient.

[0031] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A leachate wastewater treatment device with good use effect, comprising a de-oiling tank (1) and a separation tank (2); characterized in that: Support legs (3) are provided at the four corners below the de-oiling tank (1), and the separation tank (2) is located between the support legs (3); symmetrical liquid outlet pipes (6) are provided below the de-oiling tank (1), and the liquid outlet pipes (6) are connected to a second liquid outlet pipe (7) through a three-way pipe fitting, and the second liquid outlet pipe (7) extends into the separation tank (2); The de-oiling box (1) is provided with a de-oiling assembly; the separation box (2) is provided with a solid outlet assembly, and the solid outlet assembly includes a second box cover (15) provided on the separation box (2); a drain basket (16) is provided in a sliding manner in the separation box (2), and the bottom plate (17) of the drain basket (16) is mesh-shaped and tilted; a rectangular outlet (18) is provided on the front and near the lower end of the drain basket (16), and a second outlet (19) that can correspond to the outlet (18) is provided on the front of the separation box (2); the upper end of the drain basket (16) is provided with a plurality of drain outlets (19). A connecting rod (20) is provided; two metal hooks (21) are provided on the connecting rod (20); symmetrical side panels (22) are provided on the second box cover (15), a motor (23) is provided on the outer side of one of the side panels (22), the output end of the motor (23) extends into a rotating rod (24) provided between the two side panels (22), two groups of pull ropes (25) are wound on the rotating rod (24), the lower ends of the pull ropes (25) are extended into the drain basket (16) and connected to the metal hooks (21), and a through hole capable of accommodating the pull ropes (25) is provided on the second box cover (15).

2. The leachate sewage treatment device with good use effect according to claim 1 is characterized in that: The de-oiling tank (1) is provided with a tank cover (4), and the tank cover (4) is provided with two through holes (5).

3. The leachate sewage treatment device with good use effect according to claim 1 is characterized in that: The de-oiling assembly includes a de-oiling box (1) having a partition plate (8) provided at the middle end thereof, a water inlet pipe (9) provided on the right side of the de-oiling box (1), and a water outlet pipe (10) provided on the left side thereof; a flow guide pipe (11) provided in the de-oiling box (1) and on the right side of the partition plate (8), the flow guide pipe (11) being T-shaped and extending out of the partition plate (8); a baffle plate 1 (12) provided in the de-oiling box (1) and on the left side of the partition plate (8), and a baffle plate 2 (13) and a baffle plate 3 (14) provided in the de-oiling box (1) and on the right side of the partition plate (8).

4. The leachate sewage treatment device with good use effect according to claim 3 is characterized in that: The front and rear sides of the baffle plate 1 (12), baffle plate 2 (13), and baffle plate 3 (14) are all connected to the de-oiling tank (1); the baffle plate 1 (12) is close to the water inlet pipe (9); the baffle plate 2 (13) is close to the flow guide pipe (11); and the baffle plate 3 (14) is close to the water outlet pipe (10).

5. The leachate sewage treatment device with good use effect according to claim 1 is characterized in that: The first outlet (18) and the second outlet (19) are both inclined downward from the inside to the outside.

6. The leachate sewage treatment device with good use effect according to claim 1 is characterized in that: Limiting slide blocks (26) are provided on both sides of the drain basket (16), and limiting sliding grooves capable of being slidably connected to the limiting slide blocks (26) are provided on both sides of the separation box (2).

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