Chemical precipitation device for high-concentration chemical wastewater

Abstract

The utility model discloses a chemical precipitation device for high-concentration chemical wastewater and belongs to the technical field of chemical wastewater treatment equipment. Comprising a sedimentation tank; a rotating motor is arranged at the bottom of the sedimentation tank; an output shaft of the rotating motor is fixedly connected with a rotating column; the number of the separating frames is two, and the two separating frames are connected to the rotating column. A rotating hole is formed in the rotating column, a rotating rod fixedly connected with the separating frame is rotationally arranged in the rotating hole, and the rotating rod is fixedly connected with the rotating column through an elastic inserting assembly; the flapping assembly is arranged at the bottom of the sedimentation tank and corresponds to the position, far away from the outflow hole, of the separation frame. Through the arrangement of the rotating column, the separation frame can be quickly replaced, and the solid-liquid separation process is not affected; and meanwhile, an elastic inserting assembly and a flapping assembly are arranged, so that the sediment can be quickly taken out under the condition that the separation frame is not completely disassembled.

Description

Technical Field

[0001] This utility model provides a chemical precipitation device for high-concentration chemical wastewater, belonging to the technical field of chemical wastewater treatment equipment. Background Technology

[0002] As a vital pillar of the national economy, the chemical industry generates large quantities of high-concentration chemical wastewater during its production processes. This wastewater is characterized by its complex composition, high toxicity, high organic content, high salt content, and recalcitrant nature. Direct discharge of high-concentration chemical wastewater into the environment without effective treatment can cause severe pollution to soil, surface water, and groundwater. Chemical precipitation is a commonly used method for treating heavy metal ions and certain soluble salts in high-concentration chemical wastewater. Its principle involves adding a specific chemical precipitant to the wastewater, causing the target pollutants to react chemically with the precipitant, forming insoluble precipitates. These precipitates are then removed from the wastewater through solid-liquid separation.

[0003] Solid-liquid separation often employs filtration. However, when treating high-concentration, large-volume chemical wastewater, the high filtration pressure of the separation frame makes it prone to clogging, and the sediment within the frame needs to be removed periodically. Separating and removing the sediment from the separation frame is cumbersome, often requiring disassembly and cleaning of the frame; it also necessitates pausing the solid-liquid separation process, impacting wastewater treatment efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is that removing the sediment from the separation frame is cumbersome and can easily affect wastewater treatment efficiency.

[0005] To solve the above problems, the proposed technical solution is as follows: a chemical precipitation device for high-concentration chemical wastewater, comprising a fixed frame, a sedimentation tank, an inlet pipe, and an outlet pipe; the sedimentation tank is fixedly mounted on the fixed frame, the inlet pipe is connected to the upper end of the sedimentation tank, the outlet pipe is connected to the bottom of the sedimentation tank, and a stirring assembly is provided inside the sedimentation tank; it also includes:

[0006] The sedimentation tank has a separation frame with a filter screen. A rotating motor is installed at the bottom of the sedimentation tank, and a rotating column is fixedly connected to the output shaft of the rotating motor. There are two separation frames, which are connected to the rotating column, and one of the separation frames is located at the position corresponding to the outflow pipe. A rotating hole is opened in the rotating column, and a rotating rod fixedly connected to the separation frame is rotatably installed in the rotating hole. The rotating rod is fixedly connected to the rotating column through an elastic plug-in assembly.

[0007] A tapping assembly is provided at the bottom of the sedimentation tank, and the position of the tapping assembly corresponds to the position of the separation frame away from the outlet hole; a water receiving tank and a waste tank are respectively provided below the two separation frames, the position of the water receiving tank corresponds to the position of the outlet pipe, and the position of the waste tank corresponds to the position of the tapping assembly.

[0008] As an improvement, the elastic plug-in assembly includes a fixed rod, a spring, and a limiting block. A groove is formed in the rotating column, and a fixing hole is formed on the rotating rod. The fixed rod is located in the groove and inserted into the fixing hole. The spring is sleeved on the fixed rod, and the limiting block is fixedly sleeved on the fixed rod.

[0009] As an improvement, two fixing holes are provided, and the two fixing holes are 180° apart; the spring is reserved with compression amount.

[0010] As an improvement, the tapping assembly includes an electric telescopic rod, a lifting plate, and striking rods. The electric telescopic rod is fixedly installed at the bottom of the sedimentation tank, and the lifting plate is fixedly connected to the working end of the electric telescopic rod. Several striking rods are provided, and the striking rods are fixedly connected below the lifting plate.

[0011] As an improvement, the stirring assembly includes a support, a stirring motor, and a stirring shaft. The support is fixedly installed above the sedimentation tank, and the stirring motor is installed on the support. The stirring shaft is inserted into the sedimentation tank, and stirring blades are fixedly installed on the stirring shaft. The stirring shaft is also fixedly connected to the output shaft of the stirring motor.

[0012] As an improvement, a storage box is fixedly installed on the support, and a connecting pipe corresponding to the sedimentation tank is connected to the bottom of the storage box, and a chemical precipitant is stored inside the storage box.

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

[0014] 1. Two separation frames are provided, which are connected to the rotating column, and one of the separation frames is located at the position corresponding to the outflow pipe. By setting two separation frames, the rotation of the rotating column can drive the two separation frames to replace each other, thereby quickly replacing the separation frames without affecting the normal solid-liquid separation process and ensuring the efficiency of wastewater treatment.

[0015] 2. A rotating rod is fixedly connected to the separation frame inside the rotating hole, and the rotating rod is fixedly connected to the rotating column through a flexible plug-in component; by setting the flexible plug-in component, the replacement separation frame can be rotated 180° quickly, and the filter screen at the bottom of the separation frame can be tapped by the tapping component, so that the sediment in the separation frame can be quickly removed without completely disassembling the separation frame. Attached Figure Description

[0016] Figure 1This is a perspective view of a high-concentration chemical wastewater chemical precipitation device according to the present invention.

[0017] Figure 2 This is a perspective view of a high-concentration chemical wastewater chemical precipitation device according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the sedimentation tank of a high-concentration chemical wastewater chemical precipitation device according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the rotating column of a high-concentration chemical wastewater chemical precipitation device according to this utility model.

[0020] 1. Inlet pipe; 2. Sedimentation tank; 3. Support frame; 4. Agitator motor; 5. Storage tank; 6. Outlet pipe; 7. Fixing frame; 8. Separation frame; 9. Water receiving tank; 10. Rotating motor; 11. Rotating column; 12. Electric telescopic rod; 13. Lifting plate; 14. Waste bin; 15. Striking rod; 16. Agitator shaft; 17. Rotating hole; 18. Rotating rod; 19. Fixing hole; 20. Groove; 21. Fixing rod; 22. Spring; 23. Limiting block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figure 1-4 As shown: This utility model provides a chemical precipitation device for high-concentration chemical wastewater, including a fixed frame 7, a sedimentation tank 2, an inlet pipe 1, and an outlet pipe 6; the sedimentation tank 2 is fixedly mounted on the fixed frame 7, the inlet pipe 1 is connected to the upper end of the sedimentation tank 2, and the outlet pipe 6 is connected to the bottom of the sedimentation tank 2, and a stirring assembly is provided inside the sedimentation tank 2; it also includes:

[0023] The sedimentation tank 2 has a separation frame 8 with a filter screen and a rotating motor 10 at the bottom. A rotating column 11 is fixedly connected to the output shaft of the rotating motor 10. There are two separation frames 8, which are connected to the rotating column 11. One of the separation frames 8 is located at the position corresponding to the outlet pipe 6. A rotating hole 17 is opened in the rotating column 11. A rotating rod 18 fixedly connected to the separation frame 8 is rotatably installed in the rotating hole 17. The rotating rod 18 is fixedly connected to the rotating column 11 through an elastic plug-in assembly.

[0024] The agitator is located at the bottom of the sedimentation tank 2 and corresponds to the position of the separation frame 8 away from the outlet. Below the two separation frames 8, there are water receiving tank 9 and waste bin 14 respectively. The water receiving tank 9 corresponds to the position of the outlet pipe 6 and can receive the filtered wastewater. The waste bin 14 corresponds to the position of the agitator and can store the removed sediment.

[0025] like Figure 4 As shown, the elastic insertion assembly includes a fixing rod 21, a spring 22, and a limiting block 23. A groove 20 is formed inside the rotating column 11, and a fixing hole 19 is formed on the rotating rod 18. The fixing rod 21 is located within the groove 20 and inserted into the fixing hole 19. The spring 22 is sleeved on the fixing rod 21, and the limiting block 23 is fixedly sleeved on the fixing rod 21. Two fixing holes 19 are provided, spaced 180° apart. When the separation frame 8 rotates 180°, the fixing holes 19 ensure the re-insertion of the fixing rod 21, thereby fixing the rotating rod 18. The spring 22 has a reserved compression amount, which can continuously exert pressure on the limiting block 23, thereby increasing the stability of the fixing rod 21 inserted into the fixing hole 19.

[0026] like Figure 2 As shown, the tapping assembly includes an electric telescopic rod 12, a lifting plate 13, and striking rods 15. The electric telescopic rod 12 is fixedly installed at the bottom of the sedimentation tank 2, and the lifting plate 13 is fixedly connected to the working end of the electric telescopic rod 12. Several striking rods 15 are provided, and each striking rod 15 is fixedly connected below the lifting plate 13. By setting the electric telescopic rod 12, the lifting plate 13 can be driven to slide up and down reciprocally. The striking rods 15 are used to tap the filter screen at the bottom of the separation frame 8, thereby accelerating the removal of sediment in the separation frame 8.

[0027] like Figure 2 , 3 As shown, the stirring assembly includes a support 3, a stirring motor 4, and a stirring shaft 16. The support 3 is fixedly installed above the sedimentation tank 2, and the stirring motor 4 is mounted on the support 3. The stirring shaft 16 is inserted into the sedimentation tank 2, and stirring blades are fixedly installed on the stirring shaft 16. The stirring shaft 16 is also fixedly connected to the output shaft of the stirring motor 4. A storage tank 5 is fixedly installed on the support 3. The bottom of the storage tank 5 is connected to a connecting pipe corresponding to the sedimentation tank 2, and the storage tank 5 stores a chemical precipitant. The chemical precipitant is added to the sedimentation tank 2 through the storage tank 5, and the stirring shaft 16 and stirring blades can accelerate the rapid mixing of the precipitant and wastewater, improving the reaction effect.

[0028] The principle of this utility model

[0029] like Figure 1 , 2 As shown, wastewater enters sedimentation tank 2 through inlet pipe 1, and chemical precipitant is added to sedimentation tank 2 through storage tank 5; stirring motor 4 is started, and stirring shaft 16 and stirring blades are used to accelerate the mixing of chemical precipitant and wastewater; the target pollutants in wastewater react chemically with precipitant to generate insoluble precipitates, and then these precipitates enter separation frame 8 through outlet pipe 6. After being filtered by the filter screen at the bottom of separation frame 8, the liquid flows into water receiving tank 9, while the solid precipitates remain in separation frame 8.

[0030] After a period of time, the sediment in separation frame 8 will accumulate, easily clogging the filter screen at the bottom of separation frame 8 and affecting the efficiency of solid-liquid separation. At this time, separation frame 8 needs to be replaced. Figure 2 , 3 As shown, the liquid discharge from the effluent pipe 6 can be paused first, and the rotating motor 10 can be started to drive the rotating column 11 to rotate, causing the two separation frames 8 to switch positions and quickly complete the replacement of the separation frames 8. Then, the liquid discharge from the effluent pipe 6 can be immediately resumed to ensure the continuity of solid-liquid separation and not affect the wastewater treatment process. As for the replaced separation frames 8, as... Figure 4 As shown, for the fixing rod 21 corresponding to the replaced separation frame 8, pull the fixing rod 21 downwards to disengage it from the fixing hole 19, releasing the fixing of the rotating rod 18. Simultaneously, the limiting block 23 compresses the spring 22. Then, rotate the entire separation frame 8 180° to invert it. At this point, the other fixing hole 19 corresponds to the fixing rod 21. Release the fixing rod 21, and under the rebound force of the spring 22, the fixing rod 21 inserts into the fixing hole 19 to re-fix the rotating rod 18. After the separation frame 8 is inverted, most of the sediment can fall directly into the waste bin 14. Then, activate the electric telescopic rod 12 to make the lifting plate 13 move up and down reciprocally. Use the striking rod 15 to strike the filter screen at the bottom of the separation frame 8, allowing the sediment in the separation frame 8 and the filter screen to quickly fall into the waste bin 14. After removing the sediment, rotate the separation frame 8 back into place, ready for the next replacement.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-concentration chemical wastewater chemical precipitation device, comprising a fixing frame (7), a precipitation tank (2), a water inlet pipe (1), and an outlet pipe (6); the precipitation tank (2) is fixedly arranged on the fixing frame (7), the water inlet pipe (1) is connected to the upper end of the precipitation tank (2), the outlet pipe (6) is connected to the bottom of the precipitation tank (2), and a stirring assembly is arranged in the precipitation tank (2); characterized in that, Also include: The bottom of the sedimentation tank (2) is provided with a rotating motor (10), and the output shaft of the rotating motor (10) is fixedly connected with a rotating column (11); the separation frame (8) is provided with two, two separation frames (8) are connected to the rotating column (11), and one of the separation frames (8) is located at a position corresponding to the outlet pipe (6); the rotating column (11) is provided with a rotating hole (17), and the rotating hole (17) is rotatably provided with a rotating rod (18) fixedly connected with the separation frame (8), and the rotating rod (18) is fixedly connected with the rotating column (11) through an elastic plug-in assembly; The beating assembly is arranged at the bottom of the sedimentation tank (2), and the beating assembly corresponds to the position of the separation frame (8) away from the outlet hole; two separation frames (8) are respectively provided with a water receiving tank (9) and a waste tank (14) below, the water receiving tank (9) corresponds to the position of the outlet pipe (6), and the waste tank (14) corresponds to the position of the beating assembly.

2. The high-concentration chemical wastewater chemical precipitation device according to claim 1, characterized in that: The elastic plug-in assembly includes a fixed rod (21), a spring (22) and a limiting block (23), the rotating column (11) is provided with a groove (20), and the rotating rod (18) is provided with a fixed hole (19); the fixed rod (21) is located in the groove (20), and the fixed rod (21) is inserted into the fixed hole (19); the spring (22) is sleeved on the fixed rod (21), and the limiting block (23) is fixedly sleeved on the fixed rod (21).

3. The chemical precipitation device for high-concentration chemical wastewater according to claim 2, characterized in that: The fixed hole (19) is provided with two, and the two fixed holes (19) are separated by 180°; the spring (22) is reserved with a compression amount.

4. The high concentration chemical wastewater chemical precipitation device according to claim 1, characterized in that: The beating assembly includes an electric telescopic rod (12), a lifting plate (13) and a knocking rod (15), the electric telescopic rod (12) is fixedly arranged at the bottom of the sedimentation tank (2), and the lifting plate (13) is fixedly connected to the working end of the electric telescopic rod (12); the knocking rod (15) is provided with a plurality of, and the knocking rod (15) is fixedly connected below the lifting plate (13).

5. The high concentration chemical wastewater chemical precipitation device according to claim 1, characterized in that: The stirring assembly includes a support (3), a stirring motor (4) and a stirring shaft (16), the support (3) is fixedly arranged above the sedimentation tank (2), and the stirring motor (4) is arranged on the support (3); the stirring shaft (16) is inserted into the sedimentation tank (2), the stirring shaft (16) is fixedly provided with stirring blades, and the stirring shaft (16) is fixedly connected to the output shaft of the stirring motor (4).

6. The high concentration chemical wastewater chemical precipitation device according to claim 5, characterized in that: The support (3) is fixedly provided with a storage tank (5), the bottom of the storage tank (5) is connected with a connecting pipe corresponding to the sedimentation tank (2), and the storage tank (5) stores a chemical precipitating agent.

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