Metallurgical wastewater supernatant liquid taking device

Abstract

The utility model discloses a liquid extraction device for metallurgical wastewater supernatant, which relates to the technical field of metallurgical wastewater extraction equipment, and comprises a wastewater pool and a liquid extraction pump, metallurgical wastewater is stored in the wastewater pool, the liquid extraction pump is arranged on the wastewater pool, the water inlet end of the liquid extraction pump is connected with a telescopic pipe, the side part of the telescopic pipe is provided with a mounting rack, and the mounting rack is provided with a water inlet and a water outlet. A floating structure is arranged on the mounting frame, and the bottom end of the telescopic pipe is immersed into the metallurgical wastewater in the wastewater pool. The service life can be prolonged, and overhaul and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical waste water extraction equipment, in particular to a liquid extraction device for metallurgical waste water supernatant. Background Art

[0002] The metallurgical process generates large amounts of acidic metallurgical wastewater, including acid leachate, extraction residue, and electrodeposition lean liquor. These wastewaters are often highly acidic and contain high concentrations of iron and sulfate ions. Because acidic wastewater is highly corrosive, direct discharge can corrode pipelines and structures, interfere with water purification, and acidify the soil. Treating metallurgical wastewater requires significant investment, necessitating a more effective solution.

[0003] The study found that filtering metallurgical wastewater and extracting the supernatant for use in the preparation of lithium slag admixtures can improve the impermeability of concrete when using lithium slag admixtures to prepare concrete, reduce the difficulty and cost of treating heavy metals in metallurgical wastewater, and realize the resource utilization of metallurgical wastewater.

[0004] When extracting the supernatant liquid of metallurgical wastewater in the wastewater pool, the liquid level of the metallurgical wastewater will drop. In order to ensure the reliability of extracting the supernatant liquid, a float-type submersible pump is required. The float-type submersible pump can rise and fall with the liquid level. The pump body of the float-type submersible pump is immersed in the interior of the metallurgical wastewater, which increases the risk of damage, shortens the service life, and is inconvenient for inspection and maintenance. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a liquid taking device for supernatant liquid of metallurgical wastewater. The utility model can extend the service life and facilitate overhaul and maintenance.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A liquid collection device for supernatant liquid of metallurgical wastewater comprises a wastewater pool and a liquid collection pump. The wastewater pool stores metallurgical wastewater. The liquid collection pump is arranged on the wastewater pool. The water inlet end of the liquid collection pump is connected to a telescopic tube. A mounting frame is provided on the side of the telescopic tube. A floating structure is provided on the mounting frame. The bottom end of the telescopic tube is immersed in the interior of the metallurgical wastewater in the wastewater pool.

[0008] Furthermore, the telescopic tube includes a first pipe, a bellows, and a second pipe. The upper end of the first pipe is connected to the water inlet end of the liquid pump, the lower end of the first pipe is connected to the upper end of the bellows, the lower end of the bellows is connected to the upper end of the second pipe, and the side of the second pipe is provided with the mounting bracket.

[0009] Furthermore, a frustum is provided below the second pipe, with the tip of the frustum facing downward, and a connecting rod is provided on the circumference of the frustum, with the upper end of the connecting rod connected to the side of the second pipe.

[0010] Furthermore, the floating structure includes a buoy, which is arranged on the mounting frame.

[0011] Furthermore, a fixing frame is provided on the inner wall of the wastewater pool, and a height adjustment rod is provided on the fixing frame. The height adjustment rod is vertically slidably connected to the mounting frame, and a limit plate is provided at the bottom of the height adjustment rod, which is used to limit the minimum height of the mounting frame.

[0012] Furthermore, the height adjustment rod adopts a threaded rod, which is threadedly connected to the fixing frame. The bottom of the threaded rod is provided with the limiting plate. The mounting frame is provided with a through hole, the threaded rod is arranged in the through hole, and the threaded rod and the through hole are vertically slidably matched.

[0013] Furthermore, a handle is provided on the top of the threaded rod.

[0014] The utility model has the beneficial effects:

[0015] 1. When extracting the supernatant liquid, the supernatant liquid enters the liquid extraction pump through the telescopic tube. When the liquid level drops, the floating structure and the arrangement of the telescopic tube can make the mounting frame move downward as the liquid level drops, and the telescopic tube extends as the liquid level drops, ensuring that the bottom end of the telescopic tube can always contact the supernatant liquid, thereby ensuring the reliability of the liquid extraction operation.

[0016] In the above-mentioned liquid extraction process, only the bottom of the telescopic tube can be immersed in the upper clear liquid of the metallurgical wastewater, and the liquid extraction pump is located outside the metallurgical wastewater. Compared with the situation in which the buoy submersible pump is immersed in the metallurgical wastewater in the background technology, the risk of damage to the liquid extraction pump can be reduced, the service life is extended, and the inspection and maintenance of the liquid extraction pump is also convenient.

[0017] 2. The structure of the telescopic pipe including the first pipe, the bellows and the second pipe is simple and reliable and easy to assemble.

[0018] 3. By setting a frustum below the second pipe, the frustum can be used to block the supernatant below the second pipe from directly entering the second pipe. The frustum will not block the supernatant in the horizontal direction from entering the second pipe, so that more supernatant in the horizontal direction can be extracted, reducing the disturbance of the supernatant below the frustum, reducing the degree and speed of turbidity of the supernatant due to disturbance, and helping to improve the quality of liquid extraction.

[0019] 4. By setting a fixed frame on the wastewater pool, setting a height adjustment rod on the fixed frame, the height adjustment rod is vertically slidably connected to the mounting frame, and setting a limit plate at the bottom of the height adjustment rod, the limit plate can be used to limit the minimum height of the mounting frame to limit the depth of liquid extraction, thereby preventing excessive extraction of metallurgical wastewater and reducing the risk of extracting turbid wastewater from the bottom of the pool, which is conducive to ensuring the quality of liquid extraction.

[0020] 5. By using a threaded rod as a height adjustment lever, the limit plate's height can be adjusted. Turning the rod downward lowers the limit plate; turning it upward raises it. The lower the limit plate, the greater the range of the mounting bracket's descent, increasing the depth of the liquid draw. Conversely, the higher the limit plate, the shallower the depth of the liquid draw. This adjustable depth enhances operational flexibility.

[0021] 6. Because the threaded rod also plays a guiding role in the up and down movement of the mounting frame, the risk of horizontal deviation of the mounting frame is reduced, ensuring that the mounting frame can only rise and fall in the vertical direction with the liquid level, thereby improving the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a liquid collection device for the supernatant liquid of metallurgical wastewater;

[0023] Figure 2 This is a partial structural front view of a liquid extraction device for the supernatant liquid of metallurgical wastewater;

[0024] Figure 3 It is a partial structural stereogram of a liquid extraction device for the supernatant liquid of metallurgical wastewater;

[0025] Figure 4 It is a three-dimensional device for collecting the supernatant liquid of metallurgical wastewater after removing the wastewater pool. Figure 1 ;

[0026] Figure 5 It is a three-dimensional device for collecting the supernatant liquid of metallurgical wastewater after removing the wastewater pool. Figure 2 ;

[0027] Figure 6 The present invention is a partial structural front view of a liquid extraction device for the supernatant liquid of metallurgical wastewater after a frustum and a connecting rod are added.

[0028] Description of reference numerals:

[0029] 1- Wastewater pool,

[0030] 2-Liquid pump,

[0031] 31-first pipe, 32-bellows, 33-second pipe, 331-cone, 332-connecting rod,

[0032] 4-mounting frame, 41-through hole,

[0033] 5- buoy,

[0034] 6-Fixed bracket,

[0035] 7-threaded rod, 71-handle,

[0036] 8-Limiting plate. DETAILED DESCRIPTION

[0037] To better understand the present invention, the present invention is further described below with reference to the accompanying drawings. It is worth noting that in the description of the present invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are used solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0038] Example 1:

[0039] See also Figure 1 、 Figure 2 and Figure 3 A device for collecting supernatant liquid from metallurgical wastewater comprises a wastewater tank 1 and a liquid collection pump 2. The wastewater tank 1 stores metallurgical wastewater, which, after sedimentation, forms stratified layers, with the upper layer being a clear liquid. The liquid collection pump 2 is mounted on top of the wastewater tank 1. A telescopic tube is mounted on the water inlet end of the liquid collection pump 2, and a mounting bracket 4 is mounted on the side of the telescopic tube. The mounting bracket 4 is mounted with a floating structure, and the bottom end of the telescopic tube is submerged within the supernatant liquid of the metallurgical wastewater.

[0040] To extract the supernatant liquid, the liquid extraction pump 2 is activated, and the supernatant liquid is extracted through the telescopic tube and the liquid extraction pump 2. The floating structure and the telescopic tube allow the mounting frame 4 to rise and fall with the liquid level, and the telescopic tube to extend and retract with the liquid level. Specifically, when the liquid level drops, the mounting frame 4 moves downward, and the telescopic tube extends as the liquid level drops. This ensures that the bottom end of the telescopic tube always contacts the supernatant liquid, ensuring the reliability of the liquid extraction operation.

[0041] In the above-mentioned liquid extraction process, only the bottom of the telescopic tube can be immersed in the upper clear liquid of the metallurgical wastewater, and the liquid extraction pump 2 is located outside the metallurgical wastewater. Compared with the situation in which the buoy submersible pump is immersed in the metallurgical wastewater in the background technology, the risk of damage to the liquid extraction pump 2 can be reduced, the service life is extended, and the inspection and maintenance of the liquid extraction pump 2 is also convenient.

[0042] In addition, in this embodiment, the liquid pump 2 may be a centrifugal pump.

[0043] See also Figure 4 and Figure 5 This embodiment also provides a specific structure of the telescopic tube, which includes a first pipe 31, a bellows 32, and a second pipe 33. The upper end of the first pipe 31 is installed with the water inlet end of the liquid pump 2 through a flange, the lower end of the first pipe 31 is installed with the upper end of the bellows 32 through a flange, and the lower end of the bellows 32 is installed with the upper end of the second pipe 33 through a flange. The side of the second pipe 33 is welded and fixed with a mounting bracket 4.

[0044] As the telescopic tube expands and contracts with the liquid level, the bellows 32 expands and contracts. When the liquid level drops, the bellows 32 expands; when the liquid level rises, the bellows 32 contracts. The telescopic tube structure is simple, reliable, and easy to assemble.

[0045] See also Figure 4 and Figure 5 In this embodiment, the floating structure includes a buoy 5 , which is welded and fixed to the mounting frame 4 .

[0046] For further information, see Figure 6 A frustum 331 is provided below the second pipe 33 , with the tip of the frustum 331 facing downward. Two connecting rods 332 are welded and fixed to the circumference of the frustum 331 , and the upper ends of the two connecting rods 332 are welded and fixed to the side of the second pipe 33 .

[0047] When the liquid extraction pump 2 extracts the supernatant liquid of the metallurgical wastewater, the frustum 331 can prevent the supernatant liquid below the second pipe 33 from directly entering the second pipe 33. The frustum 331 will not prevent the supernatant liquid in the horizontal direction from entering the second pipe 33, so that more supernatant liquid in the horizontal direction can be extracted, reducing the disturbance of the supernatant liquid below the frustum 331, reducing the degree and speed of turbidity of the supernatant liquid due to disturbance, and helping to improve the liquid extraction quality.

[0048] Example 2:

[0049] This embodiment 2 is further improved on the basis of embodiment 1:

[0050] See also Figure 2 and Figure 3 A fixing bracket 6 is fixedly mounted on the inner wall of the wastewater tank 1. For example, the fixing bracket 6 can be fixed to the inner wall of the wastewater tank 1 by screws or bolts. A screw hole is provided on the fixing bracket 6. A height adjustment rod is provided in the screw hole. The height adjustment rod is a threaded rod 7. The threaded rod 7 is threadedly engaged with the screw hole. A handle 71 is welded and fixed to the top of the threaded rod 7. Figure 4 The lower end of the threaded rod 7 passes through the through hole 41 provided on the mounting frame 4, and the threaded rod 7 vertically slides in cooperation with the through hole 41. Figure 5A limiting plate 8 is welded and fixed to the bottom of the threaded rod 7.

[0051] As the liquid pump 2 extracts the supernatant liquid from the metallurgical wastewater, the liquid level of the metallurgical wastewater drops, and the float 5 drops along with the liquid level. The float 5 drives the mounting frame 4 and the second pipe 33 to drop along with the liquid level. The bellows 32 in the telescopic tube adaptively extends, and during the process of the mounting frame 4 descending, the mounting frame 4 moves downward relative to the threaded rod 7. When the bottom surface of the mounting frame 4 abuts the top surface of the limit plate 8, the mounting frame 4 is blocked by the limit plate 8, preventing the mounting frame 4 from moving further downward, thereby preventing the float 5 and the second pipe 33 from moving downward.

[0052] From the above process, it can be seen that the limit plate 8 can limit the minimum height of the mounting frame 4 so as to limit the depth of liquid extraction, prevent excessive extraction of metallurgical wastewater, reduce the risk of extracting turbid wastewater from the bottom of the pool, and help ensure the quality of liquid extraction.

[0053] The height of the limit plate 8 in this embodiment is adjustable. When the threaded rod 7 is turned downward, the limit plate 8 is lowered; when the threaded rod 7 is turned upward, the limit plate 8 is raised. The lower the limit plate 8, the greater the range of descent of the mounting bracket 4, which increases the depth of the liquid draw. Conversely, the higher the limit plate 8, the shallower the depth of the liquid draw. This adjustable depth improves operational flexibility.

[0054] In addition, because the threaded rod 7 also guides the up and down movement of the mounting frame 4, the risk of horizontal deviation of the mounting frame 4 is reduced, ensuring that the mounting frame 4 can only rise and fall in the vertical direction with the liquid level, thereby improving reliability of use.

[0055] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A liquid extraction device for supernatant liquid of metallurgical wastewater, comprising a wastewater tank and a liquid extraction pump, wherein the wastewater tank stores metallurgical wastewater, and is characterized in that: The liquid pump is arranged on the wastewater pool, the water inlet end of the liquid pump is connected to a telescopic tube, the side of the telescopic tube is provided with a mounting frame, the mounting frame is provided with a floating structure, and the bottom end of the telescopic tube is immersed in the interior of the metallurgical wastewater in the wastewater pool.

2. The liquid collection device for the supernatant of metallurgical wastewater according to claim 1, characterized in that: The telescopic tube includes a first pipe, a bellows, and a second pipe. The upper end of the first pipe is connected to the water inlet end of the liquid pump, the lower end of the first pipe is connected to the upper end of the bellows, and the lower end of the bellows is connected to the upper end of the second pipe. The mounting bracket is provided on the side of the second pipe.

3. The liquid collection device for the supernatant of metallurgical wastewater according to claim 2, characterized in that: A frustum is provided below the second pipe, with the tip of the frustum facing downwards. A connecting rod is provided around the frustum, and the upper end of the connecting rod is connected to the side of the second pipe.

4. The liquid collection device for the supernatant of metallurgical wastewater according to claim 1, characterized in that: The floating structure includes a buoy, and the buoy is arranged on the mounting frame.

5. A liquid collection device for supernatant liquid of metallurgical wastewater according to any one of claims 1 to 4, characterized in that: A fixing frame is provided on the inner wall of the wastewater pool, and a height adjustment rod is provided on the fixing frame. The height adjustment rod is vertically slidably connected to the mounting frame, and a limit plate is provided at the bottom of the height adjustment rod for limiting the minimum height of the mounting frame.

6. The liquid collection device for the supernatant of metallurgical wastewater according to claim 5, characterized in that: The height adjustment rod is a threaded rod, which is threadedly connected to the fixing frame. The bottom of the threaded rod is provided with the limiting plate. The mounting frame is provided with a through hole, and the threaded rod is arranged in the through hole. The threaded rod and the through hole are vertically slidably matched.

7. The liquid collection device for the supernatant of metallurgical wastewater according to claim 6, characterized in that: A handle is provided on the top of the threaded rod.

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