Equipment for removing COD (Chemical Oxygen Demand) from strong brine in coal chemical industry

Abstract

The utility model relates to the technical field of removal of COD (Chemical Oxygen Demand) in brine, in particular to equipment for removing COD in coal chemical industry strong brine, which comprises a shell, a connecting cover is connected onto the shell through a connecting mechanism, an aeration disc is fixedly connected in the shell, an ozone generator is fixedly connected onto the shell, the ozone generator is connected with the shell through an air inlet pipe, and the air inlet pipe is fixedly connected with the shell. A movable plate is arranged in the aeration disc, a plurality of dredging columns are fixedly connected to the movable plate at equal intervals, the dredging columns are located under aeration holes of the aeration disc, and the movable plate moves through a moving mechanism. According to the utility model, the aeration holes are prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of COD removal from brine, in particular to equipment for removing COD from concentrated brine in coal chemical industry. Background Art

[0002] Chemical oxygen demand (COD) is the amount of oxidant consumed when a water sample is treated with a certain strong oxidant under certain conditions. It is an indicator of the amount of reducing substances in the water. There are many ways to remove COD, including adsorption, chemical coagulation, electrochemical method, ozone oxidation, biological method, micro-electrolysis, etc. When using the ozone oxidation method, an aeration plate is set at the bottom of the concentrated brine and ozone is introduced to remove COD from the water. Since the water contains sediment, the aeration holes on the aeration plate will be blocked during treatment, affecting the aeration effect. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that the water contains sediments, which may cause the aeration holes on the aeration plate to be blocked during treatment, thus affecting the aeration effect, and proposes a device for removing COD from concentrated brine in coal chemical industry.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for removing COD from concentrated brine in coal chemical industry is designed, comprising a shell, a connecting cover is connected to the shell through a connecting mechanism, an aeration disk is fixedly connected inside the shell, an ozone generator is fixedly connected to the shell, the ozone generator and the shell are connected through an air inlet pipe, a movable plate is arranged inside the aeration disk, a plurality of dredging columns are fixedly connected to the movable plate at equal distances, the plurality of dredging columns are located directly below the aeration holes of the aeration disk, and the movable plate is moved by a movable mechanism.

[0006] Preferably, the moving mechanism comprises a threaded barrel, the threaded barrel is rotatably connected to the housing via a sealed bearing, a threaded column is threadedly connected to the inner thread of the threaded barrel, and the upper end of the threaded column is fixedly connected to the moving plate.

[0007] Preferably, a positioning rod is provided through the movable plate, and the positioning rod is fixedly connected to the aeration disk.

[0008] Preferably, a second bevel gear is fixedly connected to the lower end of the threaded cylinder, a rotating shaft is rotatably connected to the housing via a bearing, a first bevel gear is fixedly connected to the rotating shaft, and the first bevel gear is meshed with the second bevel gear.

[0009] Preferably, the connecting mechanism comprises a connecting ear, the connecting ear is fixedly connected to the shell, a threaded sleeve is fixedly connected to the connecting cover, a fastening bolt is passed through the connecting ear, and the fastening bolt is threadedly connected to the threaded sleeve.

[0010] Preferably, the shell is connected to a sedimentation tank via a connecting pipe.

[0011] The utility model provides a device for removing COD from concentrated brine in coal chemical industry, which has the beneficial effect of: using a moving mechanism to drive a moving plate to move, thereby moving the dredging column upward, which can dredge the aeration holes on the aeration pipe and prevent the aeration holes from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a device for removing COD from concentrated brine in coal chemical industry proposed by the utility model;

[0013] Figure 2 This is a three-dimensional cross-sectional view of a coal chemical concentrated brine COD removal device proposed by the utility model Figure 1 ;

[0014] Figure 3 This is a three-dimensional cross-sectional view of a coal chemical concentrated brine COD removal device proposed by the utility model Figure 2 ;

[0015] Figure 4 This is a structural schematic diagram of a mobile plate partition of a coal chemical concentrated brine COD removal device proposed by the utility model.

[0016] In the figure: 1. shell; 2. ozone generator; 3. connecting ear; 4. connecting cover; 5. sedimentation tank; 6. fastening bolt; 7. threaded sleeve; 8. connecting pipe; 9. aeration plate; 10. air inlet pipe; 11. threaded cylinder; 12. rotating shaft; 13. first bevel gear; 14. second bevel gear; 15. moving plate; 16. dredging column; 17. threaded column; 18. positioning rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example 1

[0019] Reference Figure 1-4A device for removing COD from concentrated brine in coal chemical industry comprises a shell 1, a connecting cover 4 is connected to the shell 1 through a connecting mechanism, an aeration disk 9 is fixedly connected inside the shell 1, an ozone generator 2 is fixedly connected to the shell 1, the ozone generator 2 is connected to the shell 1 through an air inlet pipe 10, ozone is introduced through the ozone generator 2, and ozone overflows from the aeration disk 9 to remove COD.

[0020] The aeration plate 9 is composed of a plurality of aeration pipes connected to a vertical pipe. A movable plate 15 is arranged inside the aeration plate 9. A plurality of dredging columns 16 are fixedly connected to the movable plate 15 at equal distances. The plurality of dredging columns 16 are located directly below the aeration holes of the aeration plate 9. The movable plate 15 is moved by a moving mechanism. The moving mechanism drives the movable plate 15 to move, thereby moving the dredging columns 16 upward, which plays a role in dredging the aeration holes on the aeration pipes and prevents the aeration holes from being blocked.

[0021] The moving mechanism includes a threaded barrel 11, which is rotatably connected to the housing 1 through a sealed bearing. A threaded column 17 is connected to the inner thread of the threaded barrel 11, and the upper end of the threaded column 17 is fixedly connected to the moving plate 15. The position of the threaded column 17 in the threaded barrel 11 can be adjusted by rotating the threaded barrel 11.

[0022] A positioning rod 18 is provided through the movable plate 15 and is fixedly connected to the aeration plate 9. The positioning rod 18 is designed to limit the movable plate 15 when the movable plate 15 is adjusted, thereby preventing the movable plate 15 from deflecting.

[0023] Example 2

[0024] In Example 1, since the threaded barrel 11 is located at the bottom of the housing 1, it is not convenient to drive the threaded barrel 11 to rotate. Figure 1-3 As another preferred embodiment of the utility model, on the basis of embodiment 1, the lower end of the threaded cylinder 11 is fixedly connected to the second bevel gear 14, the housing 1 is rotatably connected to the rotating shaft 12 through a bearing, the rotating shaft 12 is fixedly connected to the first bevel gear 13, the first bevel gear 13 is meshed with the second bevel gear 14, and the first bevel gear 13 and the second bevel gear 14 are used for transmission, so that the movable plate 15 can be driven to move by rotating the rotating shaft 12, which is beneficial to the convenience during operation.

[0025] When dredging, by rotating the rotating shaft 12, the first bevel gear 13 and the second bevel gear 14 drive the threaded barrel 11 to rotate, adjust the position of the threaded column 17 in the threaded barrel 11, drive the moving plate 15 to move, and make the dredging column 16 move upward, which will play a role in dredging the aeration holes on the aeration pipe.

[0026] Example 3

[0027] Reference Figure 1-3 As another preferred embodiment of the utility model, on the basis of embodiment 1, the connecting mechanism includes a connecting ear 3, the connecting ear 3 is fixedly connected to the shell 1, the connecting cover 4 is fixedly connected to a threaded sleeve 7, the connecting ear 3 is penetrated by a fastening bolt 6, and the fastening bolt 6 is threadedly connected to the threaded sleeve 7. By adopting the design of the fastening bolt 6, the connecting cover 4 can be opened to maintain the inside of the shell 1.

[0028] The shell 1 is connected to a sedimentation tank 5 via a connecting pipe 8 , and a water pump is provided on the connecting pipe 8 . The design of the sedimentation tank 5 allows the brine treated by the shell 1 to be precipitated.

[0029] 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 device for removing COD from concentrated brine in coal chemical industry, comprising a housing (1), wherein a connecting cover (4) is connected to the housing (1) via a connecting mechanism, and wherein: An aeration disc (9) is fixedly connected inside the shell (1), an ozone generator (2) is fixedly connected to the shell (1), the ozone generator (2) and the shell (1) are connected via an air inlet pipe (10), a movable plate (15) is arranged inside the aeration disc (9), a plurality of dredging columns (16) are fixedly connected to the movable plate (15) at equal distances, the plurality of dredging columns (16) are located directly below the aeration holes of the aeration disc (9), and the movable plate (15) is moved via a moving mechanism.

2. The equipment for removing COD from coal chemical concentrated brine according to claim 1, characterized in that: The moving mechanism comprises a threaded barrel (11), the threaded barrel (11) being rotatably connected to the housing (1) via a sealed bearing, a threaded column (17) being internally threadedly connected to the threaded barrel (11), and the upper end of the threaded column (17) being fixedly connected to the moving plate (15).

3. The equipment for removing COD from coal chemical concentrated brine according to claim 2, characterized in that: A positioning rod (18) is provided through the movable plate (15), and the positioning rod (18) is fixedly connected to the aeration plate (9).

4. The equipment for removing COD from coal chemical concentrated brine according to claim 3, characterized in that: The lower end of the threaded cylinder (11) is fixedly connected to a second bevel gear (14); the housing (1) is rotatably connected to a rotating shaft (12) via a bearing; the rotating shaft (12) is fixedly connected to a first bevel gear (13); the first bevel gear (13) is meshed with the second bevel gear (14).

5. A device for removing COD from concentrated brine in coal chemical industry according to any one of claims 1-4, characterized in that: The connecting mechanism comprises a connecting ear (3), the connecting ear (3) is fixedly connected to the housing (1), a threaded sleeve (7) is fixedly connected to the connecting cover (4), a fastening bolt (6) is passed through the connecting ear (3), and the fastening bolt (6) is threadedly connected to the threaded sleeve (7).

6. The equipment for removing COD from coal chemical concentrated brine according to claim 5, characterized in that: The shell (1) is connected to a sedimentation tank (5) via a connecting pipe (8).

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