Sewage treatment device

Abstract

The utility model discloses a sewage treatment device which comprises a sewage pool, an agent dropwise adding part arranged on the side face of the sewage pool, a stirring part arranged above an opening of the sewage pool and a water inlet part for providing sewage for the sewage pool, and the water inlet part comprises a first water inlet pipe, a second water inlet pipe and a third water inlet pipe. The third water inlet pipe is movably sleeved with an inner pipe, a splash guard is arranged on the outer side of the inner pipe, and a buoyancy adjusting device is arranged on the splash guard. By arranging the inner pipe and the anti-splashing cover, when the water level in the sewage pool is low and the fall between the outlet of the water inlet pipe and the sewage surface is large, sewage splashing can be reduced, and pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a wastewater treatment device. Background Technology

[0002] Phthalic anhydride, abbreviated as maleic anhydride, is an organic compound with the chemical formula C8H4O3. It is a white crystalline powder, insoluble in cold water, slightly soluble in hot water and ether, and soluble in ethanol, pyridine, benzene, carbon disulfide, etc. It is an important organic chemical raw material and a crucial intermediate in the preparation of phthalic acid ester plasticizers, coatings, saccharin, dyes, and organic compounds. Currently, o-xylene is used as a raw material, and vanadium pentoxide is used as a catalyst. At a temperature of 350–360℃, o-xylene undergoes a gas-phase catalytic oxidation reaction with air to produce phthalic anhydride. The oxidation reaction produces volatile acidic gases as a byproduct. During production, these volatile acidic gases are absorbed by water, generating acidic wastewater. This acidic wastewater is pumped to a wastewater treatment plant for treatment. Currently, the outlet of the existing wastewater pump is directly connected to the wastewater tank. When the wastewater level in the tank is low, the large drop between the outlet and the water surface easily causes wastewater splashing, which evaporates into the surrounding air, causing environmental pollution, especially when the wastewater contains volatile acidic gases. Utility Model Content

[0003] In view of this, the present invention provides a wastewater treatment device that can reduce the spread of acidic volatile gases into the environment caused by splashing when wastewater enters the wastewater tank.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a sewage treatment device, including a sewage tank, a reagent dripping component disposed on the side of the sewage tank, a stirring component disposed above the opening of the sewage tank, and a water inlet component for supplying sewage to the sewage tank. The water inlet component includes a first water inlet pipe, a second water inlet pipe, and a third water inlet pipe. An inner pipe is movably sleeved on the outside of the third water inlet pipe. A splash guard is provided on the outside of the inner pipe, and a buoyancy adjustment device is provided on the splash guard.

[0005] Furthermore, the side wall of the sewage tank is provided with support columns, and several crossbeams are provided on the top opening, with support platforms on the crossbeams.

[0006] Furthermore, the stirring components include a low-speed motor, a stirring rod, and a stirring paddle. The low-speed motor is mounted on a support platform, the stirring rod is mounted on the output end of the low-speed motor, and the stirring paddle is mounted on the stirring rod.

[0007] Furthermore, the drug dispensing component includes a drug storage tank, a dispensing pipe is provided on the side wall near the bottom of the drug storage tank, a control valve is provided on the dispensing pipe, and a control cabinet is also provided on the side wall of the sewage tank, with the control valve and the control cabinet being electrically connected.

[0008] Furthermore, the medicine storage tank is also equipped with a medicine replenishment pipe at the top and a level gauge on the side wall.

[0009] Furthermore, a guide component is provided between the third water inlet pipe and the inner pipe. The guide component includes a main body and a key. The inner wall of the main body is provided with several keyways, and the outer wall is provided with guide protrusions.

[0010] Furthermore, the inner wall of the inner tube is provided with a guide groove. The length of the guide groove is less than the length of the inner tube and is a certain distance from the top of the inner tube. The guide groove and the guide protrusion are matched, that is, the guide protrusion can slide along the guide groove.

[0011] Furthermore, the buoyancy adjustment device is a hollow plastic ball or float.

[0012] Furthermore, the inner tube includes a bottom end, the splash guard includes a bottom end, and the bottom end of the inner tube is higher than the bottom end of the splash guard in the vertical direction.

[0013] Furthermore, the key is wedge-shaped, with a straight edge and a bevel. When fixed, the straight edge is close to the wall of the third water inlet pipe, and the bevel is close to the side wall of the keyway.

[0014] The beneficial effects of this utility model are:

[0015] This utility model discloses a wastewater treatment device, including a wastewater tank, a reagent dripping component disposed on the side of the wastewater tank, a stirring component disposed above the opening of the wastewater tank, and a water inlet component for supplying wastewater to the wastewater tank. The water inlet component includes a first water inlet pipe, a second water inlet pipe, and a third water inlet pipe. An inner pipe is movably fitted around the third water inlet pipe, and a splash guard is provided on the outside of the inner pipe. The splash guard is equipped with a buoyancy adjustment device. By setting up the inner pipe and the splash guard, wastewater splashing can be reduced when the water level in the wastewater tank is low and when there is a large drop between the outlet of the water inlet pipe and the wastewater surface, thus reducing pollution. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the structure of the wastewater treatment device provided by this utility model;

[0018] Figure 2 for Figure 1 A top view of the wastewater treatment plant shown;

[0019] Figure 3 for Figure 1 The front view of the wastewater treatment unit shown;

[0020] Figure 4 for Figure 3The enlarged schematic diagram shown is a partial view.

[0021] Figure 5 for Figure 1 The diagram shows the structure of the water inlet component.

[0022] Figure 6 for Figure 5 The enlarged schematic diagram shown is a partial view.

[0023] Figure 7 for Figure 5 Another structural schematic diagram of the water inlet component shown;

[0024] Figure 8 for Figure 1 The diagram shows the assembly of the third water inlet pipe and guide components.

[0025] Figure 9 for Figure 1 The diagram shows the main structure of the guide component.

[0026] Figure 10 for Figure 1 The diagram shows the key structure in the guide component.

[0027] In the diagram: 100. Wastewater treatment device; 1. Wastewater tank; 11. Crossbeam; 111. Support platform; 12. Support column; 2. Chemical dosing component; 21. Chemical storage tank; 211. Dosing pipe; 212. Control valve; 22. Control cabinet; 23. Level gauge; 24. Support leg; 25. Platform; 26. Chemical replenishment pipe; 3. Stirring component; 31. Low-speed motor; 32. Stirring rod; 33. Stirring paddle; 4. Water inlet component; 41. Water inlet pipe; 411. 412. First clamp; 413. Second clamp; 414. Water pipe bracket; 415. First water inlet pipe; 416. Second water inlet pipe; 417. Third water inlet pipe; 42. Splash guard; 421. Buoyancy adjustment device; 422. Bottom end of splash guard; 43. Inner pipe; 431. Guide groove; 432. Bottom end of inner pipe; 44. Guide component; 441. Main body; 4411. Keyway; 4412. Guide protrusion; 442. Key; 4421. Straight edge; 4422. Bevel. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] refer to Figures 1-3As shown, this utility model provides a wastewater treatment device 100, including a wastewater tank 1, a reagent dripping component 2 disposed on the side of the wastewater tank 1, a stirring component 3 disposed above the opening of the wastewater tank 1, and a water inlet component 4 for supplying wastewater to the wastewater tank 1. The wastewater treatment device 100 provided by this utility model delivers wastewater into the wastewater tank 1 through the water inlet component 4, adds wastewater treatment reagent through the reagent dripping component 2, and achieves a rapid reaction under the stirring of the stirring component 3.

[0030] The sewage tank 1 is a rectangular parallelepiped with its opening facing upwards. Support columns 12 are provided on its side walls to increase its stability. Several crossbeams 11 are provided on the opening of the sewage tank 1, and support platforms 111 are mounted on the crossbeams 11. The stirring component 3 includes a low-speed motor 31 mounted on the support platform 111, a stirring rod 32 connected to the output shaft of the low-speed motor 31, and stirring paddles 33 mounted on the stirring rod 32. In this embodiment, two sets of stirring paddles 33 are provided, each set having three stirring impellers.

[0031] The chemical dosing component 2 includes a chemical storage tank 21, which is cylindrical and mounted on a support leg 24, which is installed on a platform 25. A dosing pipe 211 is located on the side wall near the bottom of the chemical storage tank 21, through which wastewater treatment chemicals can be added to the wastewater tank 1. A control valve 212 is installed on the dosing pipe 211, and the control valve 212 is electrically connected to a control cabinet 22 located on the side wall of the wastewater tank 1. A chemical replenishment pipe 26 is also located at the top of the chemical storage tank 21 for replenishing the chemical in the tank. A level gauge 23 is also installed on the chemical storage tank 21 to display the remaining chemical level and allow for timely replenishment.

[0032] refer to Figures 1-10 As shown, a water pipe bracket 413 is also fixed on the sewage tank 1 for fixing and supporting the water inlet component 4. The water inlet component 4 includes an inlet pipe 41, a splash guard 42, and an inner pipe 43 disposed inside the splash guard 42. The inlet pipe 41 includes a first inlet pipe 414, a second inlet pipe 415, and a third inlet pipe 416. The first inlet pipe 414 is fixed to the water pipe bracket 413 by a first clamp 411, and the second inlet pipe 415 is fixed to the water pipe bracket 413 by a second clamp 412. A guide component 44 is provided between the third inlet pipe 416 and the inner pipe 43. The guide component 44 is fixedly connected to the third inlet pipe 416 and slidably connected to the inner pipe 43. A guide groove 431 is provided on the inner wall of the inner pipe 43. The length of the guide groove 431 is less than the length of the inner pipe 43 and is a certain distance away from the top of the inner pipe 43. Specifically, refer to Figure 10As shown, the guide component 44 includes a main body 441 and a key 442. The main body 441 is annular in shape, and its inner wall is provided with keyways 4411. The keyways 4411 are evenly spaced along the inner wall of the main body 441, and the number is 2 to 5. The main body 441 is fitted onto the end of the third water inlet pipe 416 and is fixed by the key 442 engaging the keyway 4411. The key 442 is wedge-shaped, including a straight edge 4421 and a beveled edge 4422. When fixed, the straight edge 4421 is close to the pipe wall of the third water inlet pipe 416, and the beveled edge is close to the side wall of the keyway 4411. The outer wall of the main body 441 of the guide component 44 is provided with guide protrusions 4412. The number of guide protrusions 4412 is the same as the number of guide grooves 431. The arrangement of the guide protrusions 4412 and guide grooves allows the inner pipe 43 to move along the direction of the third water inlet pipe 416 when moving up and down, preventing the inner pipe 43 and the splash guard 42 from shaking irregularly.

[0033] refer to Figure 5 As shown, the splash guard 42 is equipped with a buoyancy adjustment device 421, which can adjust the buoyancy appropriately according to the weight of the splash guard 42 and the inner tube 43. In some embodiments, the buoyancy adjustment device 421 is a hollow plastic ball or a float. (Reference) Figure 7 As shown, in the vertical direction, the bottom end 432 of the inner tube 43 is higher than the bottom end 422 of the splash shield 42, which means that the inner tube 43 is recessed inside the splash shield 42. The buoyancy adjustment device 421 is used to control the bottom end 422 of the splash shield to be submerged below the sewage surface, while the bottom end 432 of the inner tube is above the sewage surface.

[0034] Preferably, the vertical height difference between the bottom end 432 of the inner tube and the bottom end 422 of the splash shield is 15-30cm. If it is too low, the bottom end 432 of the inner tube will be submerged in the sewage liquid surface to prevent liquid surface fluctuations. If it is too high, too much water will splash up, causing volatile acidic gas to overflow.

[0035] The wastewater treatment device provided by this utility model has a third inlet pipe movably fitted onto the inner pipe 43 at the inlet pipe 41. In use, the wastewater flowing out of the inlet pipe 41 flows into the wastewater tank 1 through the inner pipe 43. With the help of the buoyancy adjustment device 421, the inner pipe 43 and the splash guard 42 can change synchronously with the rise and fall of the liquid level. This can reduce the amount of water splashed out of the wastewater flowing into the wastewater tank 1 from the inlet pipe 41 due to changes in the liquid level, thus preventing the overflow of acidic gas and providing an environmental protection function.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A wastewater treatment device, comprising a wastewater tank (1), a reagent dripping component (2) disposed on the side of the wastewater tank (1), a stirring component (3) disposed above the opening of the wastewater tank (1), and a water inlet component (4) for supplying wastewater to the wastewater tank (1), characterized in that: The water inlet component (4) includes a first water inlet pipe (414), a second water inlet pipe (415) and a third water inlet pipe (416). The third water inlet pipe (416) is movably fitted with an inner pipe (43). A splash shield (42) is provided on the outside of the inner pipe (43). A buoyancy adjustment device (421) is provided on the splash shield (42).

2. The wastewater treatment device as described in claim 1, characterized in that: The sewage tank (1) has a support column (12) on its side wall and several crossbeams (11) on its top opening. The crossbeams (11) are equipped with a support platform (111).

3. The wastewater treatment device as described in claim 1, characterized in that: The drug dispensing component (2) includes a drug storage tank (21), and a dispensing pipe (211) is provided on the side wall near the bottom of the drug storage tank (21). A control valve (212) is provided on the dispensing pipe (211). A control cabinet (22) is also provided on the side wall of the sewage tank (1). The control valve (212) and the control cabinet (22) are electrically connected.

4. The wastewater treatment device as described in claim 1, characterized in that: A guide component (44) is provided between the third water inlet pipe (416) and the inner pipe (43). The guide component includes a main body (441) and a key (442). The inner wall of the main body (441) is provided with several keyways (4411), and the outer wall is provided with guide protrusions (4412).

5. The wastewater treatment device as described in claim 1, characterized in that: The buoyancy adjustment device (421) is a hollow plastic ball or float.

6. The wastewater treatment device as described in claim 1, characterized in that: The inner tube (43) includes an inner tube bottom end (432), and the splash shield (42) includes a splash shield bottom end (422). The inner tube bottom end (432) is higher than the splash shield bottom end (422) in the vertical direction.

7. The wastewater treatment device as described in claim 2, characterized in that: The stirring component (3) includes a low-speed motor (31), a stirring rod (32) and a stirring paddle (33). The low-speed motor (31) is mounted on a support platform (111), the stirring rod (32) is mounted on the output end of the low-speed motor (31), and the stirring paddle (33) is mounted on the stirring rod (32).

8. The wastewater treatment device as described in claim 3, characterized in that: The drug storage tank (21) is also equipped with a drug replenishment pipe (26) at the top and a level gauge (23) on the side wall.

9. The wastewater treatment device as described in claim 4, characterized in that: The key (442) is wedge-shaped and has a straight edge (4421) and a bevel (4422). When fixed, the straight edge (4421) is close to the wall of the third water inlet pipe (416) and the bevel (4422) is close to the side wall of the keyway (4411).

10. The wastewater treatment device as described in claim 5, characterized in that: The inner wall of the inner tube (43) is provided with a guide groove (431). The length of the guide groove (431) is less than the length of the inner tube (43) and is a certain distance from the top of the inner tube (43). The guide groove (431) and the guide protrusion (4412) are matched, that is, the guide protrusion (4412) can slide along the guide groove (431).

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