Wastewater treatment device for laboratory analysis

Abstract

The utility model discloses a wastewater treatment device for laboratory analysis, which belongs to the technical field of laboratory analysis and comprises a water tank for collecting laboratory wastewater and a purification component for treating the laboratory wastewater. The water collecting hopper is provided with a separation assembly used for separating heavy metal in wastewater, the separation assembly comprises a sedimentation tank and a flotation assembly used for mixing medicine and wastewater, the flotation assembly comprises a water distribution plate arranged in an umbrella shape, and a medicine spreading plate arranged in an umbrella shape is arranged below the water distribution plate; according to the waste water treatment device, the problems that waste water can be collected for simple treatment due to lack of treatment equipment by users of some existing small laboratories, the waste water cannot be treated easily due to low treatment degree, and the waste water cannot be treated easily are solved. Therefore, heavy metals in the wastewater cannot be fully separated out, and pollution is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory analysis, in particular to a wastewater treatment device for laboratory analysis. Background Art

[0002] The laboratory is a place where experiments are conducted. The laboratory is the cradle of science, the base of scientific research, the source of scientific and technological development, and plays a very important role in the development of science and technology. Some substances containing heavy metal ions are often needed in the laboratory. These substances containing heavy metal ions cannot be fully used, and a certain amount of wastewater containing heavy metal ions will be generated.

[0003] Existing wastewater containing heavy metal ions needs to be treated centrally. However, some small laboratories lack equipment for centralized wastewater treatment. Many users of small laboratories will directly dump the wastewater without treatment, which will cause soil and water pollution. Some small laboratory users will collect wastewater for simple treatment due to lack of treatment equipment. Due to the low level of treatment, the heavy metals in the wastewater cannot be fully separated, which will still cause pollution.

[0004] The existing wastewater treatment devices have the above-mentioned problems. Therefore, those skilled in the art provide a wastewater treatment device for laboratory analysis to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a wastewater treatment device for laboratory analysis to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater treatment device for laboratory analysis, comprising a water tank for collecting laboratory wastewater and a purification component for treating laboratory wastewater, the purification component comprising a water collecting bucket connected to a water inlet of the water tank, and a separation component for separating heavy metals in the wastewater is installed on the water collecting bucket;

[0007] The separation components include a sedimentation tank and a flotation component for mixing the drug with the wastewater.

[0008] Preferably, the flotation assembly comprises an umbrella-shaped water-dividing plate, an umbrella-shaped medicine-spreading plate is provided below the water-dividing plate, and the wastewater falling from the water-dividing plate and the medicine liquid spread from the medicine-spreading plate are mixed at the end of the medicine-spreading plate.

[0009] Preferably: a spiral guide groove 1 is provided on the top of the water dividing plate, a guide groove 2 with a spiral direction opposite to that of the guide groove 1 is provided on the medicine spreading plate, and the top surface of the medicine spreading plate partially overlaps with the bottom wall of the water dividing plate.

[0010] Preferably: the bottom end of the medicine spreading plate is provided with an upwardly inclined edge, a shallow groove is formed between the edge and the medicine spreading plate, the height of the edge is lower than the lowest point of the second guide groove, and a plurality of through holes are provided at the bottom of the shallow groove.

[0011] Preferably: a mud discharge pipe is installed at the bottom of the sedimentation tank, and a drainage pipe is connected to the middle and upper part of the sedimentation tank.

[0012] Preferably: a dredging assembly for preventing internal blockage is installed at the bottom end of the mud discharge pipe, and the dredging assembly includes a lifting frame, a turntable is connected to the bottom of the lifting frame, a dredging rod is installed in the middle of the turntable, and the dredging rod extends to the middle and lower part of the mud discharge pipe.

[0013] Preferably, a detachable filter screen is installed on the top of the water collecting bucket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, by setting an umbrella-shaped water-dividing plate and a medicine-spreading plate, the wastewater is dispersed by the water-dividing plate, and the medicine-spreading plate disperses the medicine. The dispersed medicine and wastewater can be fully mixed, and the mixed wastewater enters the sedimentation tank for separation, which can conveniently remove heavy metal ions in laboratory wastewater.

[0016] 2. In the utility model, a dredging rod is provided, which can rotate. The dredging rod can rotate and clean the accumulated solids in the mud discharge pipe to prevent excessive sludge containing heavy metals from affecting the re-separation of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side stereoscopic cross-sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0021] In the figure: 1. water tank; 2. water collecting bucket; 3. sedimentation tank; 4. water distribution plate; 5. medicine spreading plate; 6. diversion trough 1; 7. diversion trough 2; 8. edge; 9. through hole; 10. mud discharge pipe; 11. drain pipe; 12. lifting frame; 13. turntable; 14. dredging rod; 15. removable filter screen; 16. wedge-shaped part; 17. support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 to Figure 4 In an embodiment of the utility model, a wastewater treatment device for laboratory analysis includes a water tank 1 for collecting laboratory wastewater and a purification component for treating laboratory wastewater, the purification component includes a water collecting bucket 2 connected to the water inlet of the water tank 1, and a separation component for separating heavy metals in the wastewater is installed on the water collecting bucket 2. The separation component includes a sedimentation tank 3 and a flotation component for mixing drugs with wastewater. A detachable filter screen 15 is installed on the top of the water collecting bucket 2, and the flotation component includes a water dividing plate 4 arranged in an umbrella shape, and an umbrella-shaped medicine spreading plate 5 is arranged below the water dividing plate 4. The wastewater falling from the water dividing plate 4 and the medicine liquid spread by the medicine spreading plate 5 are mixed at the end of the medicine spreading plate 5.

[0024] Wastewater generated during the same experiment in the laboratory is filtered through a detachable filter 15 and then enters the water tank 1. The water tank 1 is connected to the water collecting bucket 2 by a corrosion-resistant conduit. A valve is provided on the conduit to switch the water into the water collecting bucket 2. The sedimentation tank 3 can precipitate the flocs in the wastewater. When the wastewater falls from the water distribution plate 4, it will be dispersed in multiple directions. The medicine can fall from the medicine spreading plate 5. The medicine contains components that can form complexes or chelates with heavy metals in the wastewater. The wastewater and the medicine converge at the end of the medicine spreading plate 5. The dispersed wastewater can be mixed with the medicine to facilitate the separation of heavy metal components in the sedimentation tank 3.

[0025] In one embodiment, specifically, a spiral guide groove 1 6 is provided on the top of the water dividing plate 4, and a guide groove 2 7 is provided on the medicine spreading plate 5 in the opposite spiral direction to the guide groove 1 6. The top surface of the medicine spreading plate 5 partially overlaps with the bottom wall of the water dividing plate 4, and the ends of the guide groove 2 7 spread out toward both sides. The guide groove 1 6 can increase the flow rate of the wastewater, and the guide groove 2 7 can increase the flow rate of the medicine. Since the spiral directions of the guide groove 1 6 and the guide groove 2 7 are opposite, the medicine will collide with the wastewater, so that the medicine can be fully mixed with the wastewater, thereby improving the mixing effect.

[0026] Among them, the bottom end of the medicine spreading plate 5 is provided with an upwardly inclined edge 8, and a shallow groove is formed between the edge 8 and the medicine spreading plate 5. The height of the edge 8 is lower than the lowest point of the guide groove 7. A plurality of through holes 9 are provided at the bottom of the shallow groove. The shallow groove formed between the edge 8 and the medicine spreading plate 5 can make the wastewater stay for a short time, and part of the water that would originally fall into the sedimentation tank 3 will flow back into the shallow groove to improve the mixing effect.

[0027] On the basis of the above embodiments, specifically, a mud discharge pipe 10 is installed at the bottom of the sedimentation tank 3, a drain pipe 11 is connected to the middle and upper part of the sedimentation tank 3, and a dredging component for preventing internal blockage is installed at the bottom end of the mud discharge pipe 10, and the dredging component includes a lifting frame 12, and a turntable 13 is connected to the bottom of the lifting frame 12, and a dredging rod 14 is installed in the middle of the turntable 13, and the dredging rod 14 extends to the middle and lower part of the mud discharge pipe 10. The drain pipe 11 can discharge the purified wastewater after it meets the purification standards, and the mud discharge pipe 10 can discharge the precipitated complex. When mud discharge is not needed, the lifting frame 12 can block the bottom of the drain pipe 11. When in use, the lifting frame 12 falls, and the lifting frame 12 can drive the dredging rod 14 on the turntable 13 to rise and fall, so as to discharge and collect the sludge accumulated in the mud discharge pipe 10 and reduce pollution.

[0028] When in use, the wastewater generated in the laboratory experiment is poured into the water tank 1. When the wastewater reaches a certain amount, the wastewater is introduced into the water collecting bucket 2. When the wastewater column flows onto the water dividing plate 4, the wastewater is dispersed into multiple parts by the water dividing plate 4. The dispersed wastewater will be guided by the guide groove 1 6. The guide groove 1 6 can make the wastewater form a local vortex. At the same time, the medicine falls from the medicine spreading plate 5, is dispersed by the guide groove 2 7 and then discharged. The wastewater and the medicine are mixed and converged at the edge 8, which can improve the mixing degree of the medicine and the wastewater, and the mixed wastewater is then discharged to the bottom. In the sedimentation tank 3, since there are ingredients in the medicine that can form complexes with heavy metal ions, the heavy metal ions in the wastewater will form solid complexes under the action of the medicine. When the heavy metal ions in the wastewater are completely adsorbed, the treated wastewater can be discharged through the drain pipe 11. When it is necessary to discharge the solids inside the sedimentation tank 3, the water in the sedimentation tank 3 is first drained, and the lifting frame 12 is lowered to move the dredging rod 14 downward. When the dredging rod 14 moves, the mud inside the mud discharge pipe 10 will become loose, and then it moves downward to completely discharge the mud in the mud discharge pipe 10.

[0029] In one embodiment, specifically, a plurality of wedge-shaped portions 16 are provided on the top of the dredging rod 14, and a plurality of support rods 17 are provided on the dredging rod 14. By providing the wedge-shaped portions 16, the wedge-shaped portions 16 are narrow at the top and wide at the bottom, and the wedge blocks and the support rods 17 can bring out the mud in the mud discharge pipe 10 when the dredging rod 14 falls.

[0030] 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 wastewater treatment device for laboratory analysis, characterized in that: It comprises a water tank (1) for collecting laboratory wastewater and a purification component for treating laboratory wastewater, wherein the purification component comprises a water collecting bucket (2) connected to a water inlet of the water tank (1), and a separation component for separating heavy metals in the wastewater is installed on the water collecting bucket (2); The separation component comprises a sedimentation tank (3) and a flotation component for mixing the medicine with the wastewater.

2. A laboratory analysis wastewater treatment device according to claim 1, characterized in that: The flotation assembly comprises a water dividing plate (4) arranged in an umbrella shape, and a medicine spreading plate (5) arranged in an umbrella shape is arranged below the water dividing plate (4). Wastewater falling from the water dividing plate (4) and the medicine liquid spread by the medicine spreading plate (5) are mixed at the end of the medicine spreading plate (5).

3. A laboratory analysis wastewater treatment device according to claim 2, characterized in that: The top of the water distribution plate (4) is provided with a spiral guide groove 1 (6), the medicine spreading plate (5) is provided with a guide groove 2 (7) in the opposite spiral direction to the guide groove 1 (6), and the top surface of the medicine spreading plate (5) partially overlaps with the bottom wall of the water distribution plate (4).

4. A laboratory analysis wastewater treatment device according to claim 3, characterized in that: The bottom end of the medicine spreading plate (5) is provided with an upwardly inclined edge (8), a shallow groove is formed between the edge (8) and the medicine spreading plate (5), the height of the edge (8) is lower than the lowest point of the second guide groove (7), and a plurality of through holes (9) are provided at the bottom of the shallow groove.

5. A laboratory analysis wastewater treatment device according to claim 4, characterized in that: A mud discharge pipe (10) is installed at the bottom of the sedimentation tank (3), and a drainage pipe (11) is connected to the middle and upper part of the sedimentation tank (3).

6. A laboratory analysis wastewater treatment device according to claim 5, characterized in that: A dredging assembly for preventing internal blockage is installed at the bottom end of the mud discharge pipe (10), and the dredging assembly includes a lifting frame (12), the bottom of the lifting frame (12) is connected to a turntable (13), and a dredging rod (14) is installed in the middle of the turntable (13), and the dredging rod (14) extends to the middle and lower part of the mud discharge pipe (10).

7. A laboratory analysis wastewater treatment device according to claim 6, characterized in that: A detachable filter screen (15) is installed on the top of the water collecting bucket (2).

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