A multi-stage sedimentation continuous oil removal device

Abstract

This invention provides a multi-stage sedimentation continuous oil removal device, including a mounting frame. Multiple sedimentation tanks are arranged along the length of the mounting frame. Each sedimentation tank includes a first sedimentation tank and a second sedimentation tank that are interconnected. A baffle plate connects the first and second sedimentation tanks. An overflow port and a through hole are provided on the upper side of the baffle plate. A liquid inlet pipe is connected to the first sedimentation tank at one end of the mounting frame, and a liquid delivery pipe is connected to the second sedimentation tank at the other end. This invention uses multiple sedimentation tanks and baffle plates within them to reduce the flow rate of the solution within the tanks. The solution can undergo sedimentation and oil removal once in each tank. Through multi-stage oil removal, all oil in the solution is ensured to be discharged. The solution is continuously input during the oil removal process, achieving continuous oil removal operation with a large processing capacity. The structure is simple and easy to manufacture.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology and relates to a multi-stage sedimentation continuous oil removal device. Background Technology

[0002] Nickel concentrate or high-nickel matte and other nickel raw materials are processed through grinding, pulping, leaching, thickening, sedimentation separation, and filter pressing. The filtrate is then filtered through a 300mm flat filter and enters a high-level tank. The high-level tank solution and the post-soap organics are then fed into a multiphase flow reactor and a multi-stage extraction clarification tank for four-stage countercurrent extraction to obtain raffinate and loaded organics. C272 is used as the extractant and 260# solvent oil (light white oil) is used as the diluent to purify nickel sulfate. However, due to the excessively high speed of the multi-stage pump during extraction, the extract and organics are very finely separated, resulting in excessive dissolved oil that cannot be separated. The presence of oil leads to problems such as porosity, yellowing or blackening of the nickel plates produced by electrowinning, low yield, and poor plate quality. Therefore, it is necessary to remove the oil from the extract to facilitate subsequent production. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage sedimentation continuous oil removal device to address the problems existing in the prior art.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A multi-stage sedimentation continuous oil removal device includes a mounting frame with multiple sedimentation tanks along its length. Each sedimentation tank has a baffle plate dividing it into a first sedimentation tank and a second sedimentation tank. The baffle plate has a through hole. An overflow pipe connects the sidewall of the second sedimentation tank to the sidewall of the first sedimentation tank adjacent to it. A liquid inlet pipe connects to the first sedimentation tank at one end of the mounting frame, and a liquid delivery pipe connects to the second sedimentation tank at the other end. The liquid delivery pipe connects to a final sedimentation tank, which is connected to an outlet pipe. A main oil drain pipe is located on one side of the mounting frame. Oil drain branch pipes connect to the upper parts of the first, second, and final sedimentation tanks, and are connected to the main oil drain pipe.

[0006] Furthermore, there are three settling tanks.

[0007] Furthermore, an overflow valve is provided on the overflow pipe.

[0008] Furthermore, the inlet pipe is equipped with an inlet valve, and the outlet valve is equipped with an outlet valve.

[0009] Furthermore, the top of the first settling tank, the second settling tank, and the third settling tank are equipped with vent valves and level gauges.

[0010] Furthermore, an oil drain valve is provided on the oil drain branch pipe.

[0011] Furthermore, the infusion tube is equipped with an infusion valve.

[0012] The advantages of this invention are as follows: multiple settling tanks are provided and baffles are installed in the settling tanks to reduce the flow rate of the solution in the settling tanks. The solution can undergo settling and oil removal once in each settling tank. Through multi-stage oil removal, the oil in the solution can be ensured to be discharged. The solution is continuously input during the oil removal process to achieve continuous oil removal operation and large processing capacity. The structure is simple and easy to manufacture. Attached Figure Description

[0013] Figure 1 This is a schematic front view of the structure of this utility model;

[0014] Figure 2 This is a top view illustrating the structure of this utility model;

[0015] In the diagram, 1-mounting bracket, 2-settling tank, 201-first settling tank, 202-second settling tank, 3-baffle, 4-through hole, 5-overflow pipe, 6-overflow valve, 7-inlet pipe, 8-transfer pipe, 9-end settling tank, 10-outlet pipe, 11-inlet valve, 12-outlet valve, 13-main drain pipe, 14-branch drain pipe, 15-drain valve, 16-vent valve, 17-level gauge, 18-transfer valve. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings:

[0017] like Figure 1 and 2As shown, a multi-stage sedimentation continuous oil removal device includes a mounting frame 1. Multiple sedimentation tanks 2 arranged in a straight line are provided on the mounting frame 1 along its length. In this embodiment, three sedimentation tanks 2 are provided, enabling three-stage continuous sedimentation oil removal with good oil removal effect. A baffle 3 is provided inside each sedimentation tank 2, dividing it into a first sedimentation tank 201 and a second sedimentation tank 202. A through hole 4 is also provided on the baffle 3, located in the middle of the baffle 3, allowing the solution in the first sedimentation tank 201 to flow into the second sedimentation tank 202. An overflow pipe 5 connects the side wall of the second sedimentation tank 202 to the side wall of the adjacent first sedimentation tank 201. An overflow valve 6 is provided on the overflow pipe 5. The solution in tank 2 can flow into the first settling tank 201 of the adjacent settling tank 2 through the overflow pipe 5. The first settling tank 2 of the settling tank 2 at one end of the length direction of the mounting frame 1 is connected to the inlet pipe 7, and the second settling tank 202 of the settling tank 2 at the other end is connected to the delivery pipe 8. The delivery pipe 8 is connected to the end settling tank 9, and the end settling tank 9 is connected to the outlet pipe 10. The solution can be input into the first settling tank 201 of the settling tank 2 through the inlet pipe 7 for settling. After multi-stage settling is completed, the solution is input into the end settling tank 9 and then discharged through the outlet pipe 10. The inlet pipe 7 is equipped with an inlet valve 11, and the outlet pipe 10 is equipped with an outlet valve 12. The oil-removed solution can be discharged through the outlet pipe 10 to the corresponding equipment for use.

[0018] One side of the mounting frame 1 is provided with an oil drain main pipe 13 along the length of the mounting frame 1. The upper part of the first settling tank 201, the second settling tank 202 and the end settling tank 9 are connected to the oil drain branch pipe 14. The oil drain branch pipe 14 is connected to the oil drain main pipe 13. The oil drain branch pipe 14 is provided with an oil drain valve 15. The solution can be separated into oil and water in the first settling tank 201, the second settling tank 202 and the end settling tank 10. Since the oil is lighter, it will float on the top of the first settling tank 201, the second settling tank 202 and the end settling tank 9 and be discharged through the oil drain branch pipe 14.

[0019] The top of the first settling tank 201, the second settling tank 202, and the third settling tank 9 are all equipped with vent valves 16 and level gauges 17.

[0020] The method of using this utility model is as follows:

[0021] When the oil removal operation begins, close all overflow valves 6 and drain valves 15, then open the inlet valve 11. Solution is introduced into the first settling tank 201 of the first settling tank 2 through the inlet pipe 8. The solution in the first settling tank 201 enters the second settling tank 202 through the through hole 5 on the baffle 3. Once the liquid levels in the first settling tank 201 and the second settling tank 202 reach the corresponding heights, open the overflow valve 6 on the overflow pipe 5 between the settling tank 2 and the adjacent settling tank 2, allowing the solution to flow into the first settling tank 201 of the adjacent settling tank 2. This process is repeated to ensure the solution flows into all the first settling tanks 201 and the second settling tank 202 of the settling tank 2. Finally, open the inlet valve 18 on the inlet pipe 8, allowing the solution to flow into the first settling tank 201 and the second settling tank 202. When the liquid levels in the settling tank 202 and the end settling tank 9 reach the corresponding heights, the oil drain valve 15 and the liquid outlet valve 12 can be opened, allowing the solution to flow out from the liquid outlet pipe 10 to the corresponding equipment for continued use. When the solution flows in the settling tank 2, the flow rate of the solution from the first settling tank 201 to the second settling tank 202 can be reduced due to the obstruction of the baffle 3, so that the oil phase contained in the solution floats on the top of the solution and is then discharged through the oil drain branch pipe 14 to complete one settling and oil removal. The oil-removed solution enters the adjacent settling tank 2 for another settling and oil removal. In this embodiment, three settling tanks 2 are used to achieve three-stage settling and oil removal during the flow of the solution. After three-stage oil removal, the remaining oil in the solution is discharged through the end settling tank 10 to ensure that the solution is free of oil, with good oil removal effect and large processing capacity.

Claims

1. A multi-stage sedimentation continuous oil removal device, characterized in that, The mounting frame (1) includes a mounting bracket (1) with multiple settling tanks (2) along its length. Each settling tank (2) has a baffle (3) dividing it into a first settling tank (201) and a second settling tank (202). The baffle (3) has a through hole (4). An overflow pipe (5) connects the sidewall of the second settling tank (202) to the sidewall of the first settling tank (201) of the adjacent settling tank (2). The first settling tank (2) at one end of the mounting bracket (1) is... The settling tank (201) is connected to the inlet pipe (7), and the second settling tank (202) of the settling tank (2) at the other end is connected to the delivery pipe (8). The delivery pipe (8) is connected to the end settling tank (9), and the end settling tank (9) is connected to the outlet pipe (10). The mounting bracket (1) is provided with an oil drain main pipe (13) on one side. The first settling tank (201), the second settling tank (202) and the end settling tank (9) are connected to the upper part of the oil drain branch pipe (14), and the oil drain branch pipe (14) is connected to the oil drain main pipe (13).

2. The multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, There are three settling tanks (2).

3. The multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, An overflow valve (6) is provided on the overflow pipe (5).

4. The multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, The inlet pipe (7) is equipped with an inlet valve (11), and the outlet pipe (10) is equipped with an outlet valve (12).

5. The multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, The top of the first settling tank (201), the second settling tank (202) and the end settling tank (9) are provided with a vent valve (16) and a level gauge (17).

6. The multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, The oil drain branch pipe (14) is equipped with an oil drain valve (15).

7. A multi-stage sedimentation continuous oil removal device according to claim 1, characterized in that, The infusion tube (8) is equipped with an infusion valve (18).

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