A device for removing bottom tar from a gas float oil remover

Abstract

The utility model discloses a device of removing the tar deposited at the bottom of air float oil removing device, including air float oil removing device casing, the right side fixed mounting of air float oil removing device casing has the jet pump suction pipe, the inside fixed mounting of jet pump suction pipe has jet pump suction pipe valve A and jet pump suction pipe valve B, the right side fixed mounting of jet pump suction pipe has the jet pump, the output of jet pump is connected with jet pump blow -out pipe, the inside fixed mounting of jet pump blow -out pipe has jet pump outlet valve, the top fixed mounting of jet pump suction pipe has air suction pipe. The utility model discloses through structural improvement and operation method innovation, realized the dual efficacy of routine efficient oil removal and regular on -line deslagging. When routine operation, through the optimization air suction pipe, the gas bubble volume and oil removal efficiency are improved significantly, when the tar deposition at the bottom, need not stop production to be able to pass in steam and carry out forced purging, instantaneous recovery equipment performance.

Description

Technical Field

[0001] This utility model relates to the field of oil separator cleaning technology, specifically a device for removing tar deposits at the bottom of an air flotation oil separator. Background Technology

[0002] An air flotation oil separator is a commonly used water treatment device. It separates oil and suspended solids by mixing wastewater with air to form tiny bubbles. These bubbles attach to oil and suspended solids, making them less dense than water, causing them to float to the surface. It is primarily used to remove floating oil and some suspended solids from wastewater. However, air flotation oil separators have limited capacity for handling heavy oil and tar. After prolonged operation, some heavy oil settles at the bottom, causing blockage of the aeration heads and affecting equipment performance.

[0003] Since the air flotation oil separator needs to be shut down and emptied after a period of operation to remove the tar deposits at the bottom before it can be put back into use to ensure a good oil removal effect, the tar content in the remaining ammonia water is high during the shutdown period, which seriously affects the operation of the ammonia stripping system. At the same time, the aeration head is fixedly connected to the air flotation oil separator, and it is difficult to disassemble and clean it when the aeration head is blocked. Therefore, we propose a device to remove the tar deposits at the bottom of the air flotation oil separator. Utility Model Content

[0004] The purpose of this utility model is to provide a device for removing tar deposits at the bottom of an air flotation oil separator, in order to solve the problem mentioned in the background art that after the air flotation oil separator has been running for a period of time, it needs to be shut down and emptied to remove the tar deposits at the bottom before it can be put back into use to ensure good oil removal effect. However, during the shutdown period, the tar content in the remaining ammonia water is high, which seriously affects the operation of the ammonia stripping system. At the same time, the aeration head is fixedly connected to the air flotation oil separator, and it is difficult to disassemble and clean it when the aeration head is blocked.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for removing tar deposits at the bottom of an air flotation oil separator, comprising:

[0006] The air flotation oil separator housing has a jet pump suction pipe fixedly installed on its right side. Jet pump suction pipe valve A and jet pump suction pipe valve B are fixedly installed inside the jet pump suction pipe. A jet pump is fixedly installed on the right side of the jet pump suction pipe. The output end of the jet pump is connected to a jet pump outlet pipe. A jet pump outlet valve is fixedly installed inside the jet pump outlet pipe. An air intake pipe is fixedly installed above the jet pump suction pipe. Air intake pipe control valve B and air intake pipe control valve A are fixedly installed inside the air intake pipe. A steam pipe is fixedly installed on the right side of the air intake pipe. A steam inlet control valve is fixedly installed inside the steam pipe.

[0007] As a preferred embodiment of the device for removing tar deposits at the bottom of an air flotation oil separator according to the present invention, the air flotation oil separator housing is connected to the jet pump suction pipe, the jet pump suction pipe is connected to the input end of the jet pump, and the jet pump suction pipe valve A and the jet pump suction pipe valve B are located on both sides of the air suction pipe.

[0008] As a preferred embodiment of the device for removing tar deposits at the bottom of an air flotation oil separator according to the present invention, the air intake pipe is connected to the jet pump intake pipe, the air intake pipe is connected to the steam pipe, and the air intake pipe control valve A and the air intake pipe control valve B are located on both sides of the steam pipe.

[0009] As a preferred embodiment of the device for removing tar deposits at the bottom of an air flotation oil separator according to this utility model, the air flotation oil separator shell is further provided with:

[0010] A through hole is formed at the bottom of the air flotation oil separator housing. A ball valve is fixedly installed at the top of the through hole, and a mounting post is bolted to the bottom of the through hole. A connecting pipe passes through the inside of the mounting post, and a mounting ring is integrally fixedly installed on the outside of the mounting post. A sealing gasket is installed above the mounting ring, and an aeration head is fixedly installed at the top of the mounting post.

[0011] In a preferred embodiment of this utility model, a device for removing tar deposits at the bottom of an air flotation oil separator is provided, wherein the ball valve is connected to the through hole and the ball valve is connected to the interior of the air flotation oil separator housing.

[0012] As a preferred embodiment of the device for removing tar deposited at the bottom of an air flotation oil separator according to this utility model, the shape and size of the aeration head are smaller than the shape and size of the inside of the through hole, the aeration head is connected to the connecting pipe, and the connecting pipe is connected to the jet pump outlet pipe through the jet pump outlet valve.

[0013] Compared with the prior art, this utility model provides a device for removing tar deposits at the bottom of an air flotation oil separator, which has the following beneficial effects:

[0014] 1. This utility model achieves the dual functions of efficient daily oil removal and periodic online slag cleaning through structural improvements and operational innovations. During daily operation, the optimized air intake pipe significantly increases the dissolved air bubble volume and oil removal efficiency; when tar settles at the bottom, steam can be introduced for forced purging without stopping production, instantly restoring equipment performance. This device fundamentally solves the industry problems of tar deposition at the bottom of the flotation oil separator and easy clogging of the aeration head, ensuring the continuous and stable operation of the residual ammonia water treatment process, significantly reducing the risk of ammonia stripping system failure and overall operating costs, and achieving safe, efficient, and low-cost long-term operation.

[0015] 2. This utility model improves the working efficiency of the air flotation oil separator by setting independently detachable aeration heads, so that when one aeration head is blocked, the blocked aeration head can be disassembled and cleaned without stopping the machine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the air flotation oil separator shell of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Air flotation oil separator housing; 2. Mounting column; 3. Connecting pipe; 4. Jet pump outlet valve; 5. Jet pump suction pipe valve A; 6. Air suction pipe; 7. Jet pump suction pipe valve B; 8. Jet pump; 9. Jet pump blowout pipe; 10. Air suction pipe control valve B; 11. Steam pipe; 12. Steam inlet control valve; 13. Air suction pipe control valve A; 14. Jet pump suction pipe; 15. Ball valve; 16. Aeration head; 17. Sealing gasket; 18. Mounting ring; 19. Through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 An apparatus for removing tar deposits at the bottom of an air flotation oil separator includes an air flotation oil separator housing 1. A jet pump suction pipe 14 is fixedly installed on the right side of the air flotation oil separator housing 1. A jet pump suction pipe valve A5 and a jet pump suction pipe valve B7 are fixedly installed inside the jet pump suction pipe 14. A jet pump 8 is fixedly installed on the right side of the jet pump suction pipe 14. The output end of the jet pump 8 is connected to a jet pump blow-out pipe 9. A jet pump outlet valve 4 is fixedly installed inside the jet pump blow-out pipe 9. An air intake pipe 6 is fixedly installed above the jet pump suction pipe 14. An air intake pipe control valve B10 and an air intake pipe control valve A13 are fixedly installed inside the air intake pipe 6. A steam pipe 11 is fixedly installed on the right side of the air intake pipe 6. A steam inlet control valve 12 is fixedly installed inside the steam pipe 11.

[0022] This implementation plan achieves the dual benefits of efficient daily oil removal and periodic online slag cleaning through structural improvements and operational innovations. During daily operation, optimized air intake pipe 6 significantly increases dissolved air bubble volume and oil removal efficiency. When tar settles at the bottom, forced steam purging can be initiated without stopping production, instantly restoring equipment performance. This device fundamentally solves the industry-wide problems of tar deposition at the bottom of flotation oil separators and easy clogging of aeration heads, ensuring continuous and stable operation of the residual ammonia water treatment process, significantly reducing the risk of ammonia stripping system failure and overall operating costs, and achieving safe, efficient, and low-cost long-term operation.

[0023] Furthermore:

[0024] In an optional embodiment, the air flotation oil separator housing 1 is connected to the jet pump suction pipe 14, the jet pump suction pipe 14 is connected to the input end of the jet pump 8, and the jet pump suction pipe valve A5 and the jet pump suction pipe valve B7 are located on both sides of the air suction pipe 6.

[0025] In this embodiment: the design achieves the connection between the air intake pipe 6 and the air flotation oil separator housing 1 and the jet pump 8 by setting jet pump intake pipe valve A5 and jet pump intake pipe valve B7 on both sides of the air intake pipe 6 respectively.

[0026] Furthermore:

[0027] In an optional embodiment, the air intake pipe 6 is connected to the jet pump intake pipe 14 and the steam pipe 11, and the air intake pipe control valve A13 and the air intake pipe control valve B10 are located on both sides of the steam pipe 11.

[0028] In this implementation scheme, by significantly shortening the vertical height of the air intake pipe 6 and increasing its diameter, the frictional and local resistance of airflow is directly reduced, thereby significantly decreasing the resistance to air entering the jet pump 8. The direct effect is a significant increase in the volumetric flow rate of air entering the system per unit time under the suction action of the jet pump 8. This not only enhances the working efficiency of the jet pump, but more importantly, it provides a basis for generating a larger quantity, finer, and more uniform amount of bubbles within the air flotation oil separator housing 1, ultimately significantly improving the air flotation separation and removal effect on light oil and suspended solids during daily operation.

[0029] Furthermore:

[0030] In an optional embodiment, the air flotation oil separator housing 1 is further provided with:

[0031] A through hole 19 is provided at the bottom of the air flotation oil separator housing 1. A ball valve 15 is fixedly installed at the top of the through hole 19. A mounting post 2 is bolted to the bottom of the through hole 19. A connecting pipe 3 passes through the inside of the mounting post 2. A mounting ring 18 is integrally fixedly installed on the outside of the mounting post 2. A sealing gasket 17 is installed above the mounting ring 18. An aeration head 16 is fixedly installed at the top of the mounting post 2.

[0032] In this implementation plan, by setting up independently detachable aeration heads 16, it is possible to disassemble and clean the blocked aeration head 16 without stopping the machine when one of the aeration heads 16 becomes blocked, which greatly improves the working efficiency of the air flotation oil separator.

[0033] Furthermore:

[0034] In an optional embodiment, the ball valve 15 is connected to the through hole 19 and the ball valve 15 is connected to the interior of the air flotation oil separator housing 1.

[0035] In this implementation plan: This design establishes a crucial online isolation and maintenance channel by simultaneously connecting the ball valve 15 to the bottom through-hole 19 and the space inside the air flotation oil separator housing 1. Its core advantage is that when cleaning or replacing the end aeration head 16 is required, simply closing the ball valve 15 isolates the individual aeration unit from the main equipment without shutting down or emptying the entire system. This enables rapid, online inspection and maintenance of vulnerable components, significantly reducing downtime and operational complexity, and ensuring the continuity and stability of production operations.

[0036] Furthermore:

[0037] In an optional embodiment, the shape and size of the aeration head 16 are smaller than the shape and size of the inside of the through hole 19. The aeration head 16 is connected to the connecting pipe 3, and the connecting pipe 3 is connected to the jet pump outlet pipe 9 through the jet pump outlet valve 4.

[0038] In this implementation plan, the core advantage of this design lies in achieving rapid disassembly and assembly of the aeration head 16 and reliable connection to the overall system. Firstly, by designing the aeration head 16 to be smaller than the diameter of the through hole 19, the entire aeration unit can be directly removed from the bottom channel for maintenance or replacement after closing the upper ball valve 15, making operation extremely convenient. Secondly, the aeration head 16 is reliably connected to the jet pump outlet pipe 9 via the connecting pipe 3, constructing a complete and sealed fluid channel. This ensures that, whether in 'daily oil removal' or 'online cleaning' mode, the medium air or steam can be stably and efficiently delivered to the aeration head and evenly released, thus guaranteeing the smooth execution of both core functions.

[0039] Working Principle: When using this device to remove tar deposits at the bottom of the air flotation oil separator, firstly, in the normal oil removal operation mode, open the jet pump suction pipe valve A5, jet pump suction pipe valve B7, air suction pipe control valve A13, air suction pipe control valve B10, and jet pump outlet valve 4, while simultaneously closing the steam inlet control valve 12. At this time, the jet pump 8 draws in a large amount of air through the shortened and thickened air suction pipe 6, mixes it with the remaining ammonia water from the jet pump suction pipe 14, and finally releases a large number of microbubbles from the aeration head 16 through the jet pump blowout pipe 9 and connecting pipe 3, completing the air flotation oil removal process. Secondly, in the online cleaning operation mode, close the air suction pipe control valve A13 and the jet pump suction pipe valve A5, and open the steam inlet control valve 12. At this time, high-pressure, high-temperature steam enters through steam pipe 11, is forced through jet pump 8, and then, via jet pump blow-out pipe 9 and connecting pipe 3, is finally ejected from aeration head 16. This powerfully blows and impacts the tar deposited at the bottom of the air flotation oil separator shell 1, suspending and discharging it, thus achieving online cleaning without stopping production. Finally, by closing ball valve 15 and disassembling mounting column 2, aeration head 16 can be removed from through hole 19 for maintenance or replacement. The operation is simple and does not affect the main structure of the equipment. This is the working principle of the device for removing tar deposits at the bottom of the air flotation oil separator.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing tar deposits at the bottom of an air flotation oil separator, characterized in that, include: An air flotation oil separator housing (1) is provided. A jet pump suction pipe (14) is fixedly installed on the right side of the air flotation oil separator housing (1). A jet pump suction pipe valve A (5) and a jet pump suction pipe valve B (7) are fixedly installed inside the jet pump suction pipe (14). A jet pump (8) is fixedly installed on the right side of the jet pump suction pipe (14). A jet pump blow-out pipe (9) is connected to the output end of the jet pump (8). A jet pump outlet valve (4) is fixedly installed inside the jet pump blow-out pipe (9). An air suction pipe (6) is fixedly installed above the jet pump suction pipe (14). An air suction pipe control valve B (10) and an air suction pipe control valve A (13) are fixedly installed inside the air suction pipe (6). A steam pipe (11) is fixedly installed on the right side of the air suction pipe (6). A steam inlet control valve (12) is fixedly installed inside the steam pipe (11).

2. The apparatus for removing tar deposits at the bottom of an air flotation oil separator according to claim 1, characterized in that, The air flotation oil separator housing (1) is connected to the jet pump suction pipe (14), the jet pump suction pipe (14) is connected to the input end of the jet pump (8), and the jet pump suction pipe valve A (5) and the jet pump suction pipe valve B (7) are located on both sides of the air suction pipe (6).

3. The apparatus for removing tar deposits at the bottom of an air flotation oil separator according to claim 1, characterized in that, The air intake pipe (6) is connected to the jet pump intake pipe (14), and the air intake pipe (6) is connected to the steam pipe (11). The air intake pipe control valve A (13) and the air intake pipe control valve B (10) are located on both sides of the steam pipe (11).

4. The apparatus for removing tar deposits at the bottom of an air flotation oil separator according to claim 1, characterized in that, The air flotation oil separator housing (1) is also provided with: A through hole (19) is provided at the bottom of the air flotation oil separator housing (1). A ball valve (15) is fixedly installed at the top of the through hole (19). A mounting post (2) is bolted to the bottom of the through hole (19). A connecting pipe (3) passes through the inside of the mounting post (2). An mounting ring (18) is integrally fixedly installed on the outside of the mounting post (2). A sealing gasket (17) is installed above the mounting ring (18). An aeration head (16) is fixedly installed at the top of the mounting post (2).

5. The apparatus for removing tar deposits at the bottom of an air flotation oil separator according to claim 4, characterized in that, The ball valve (15) is connected to the through hole (19), and the ball valve (15) is connected to the interior of the air flotation oil separator housing (1).

6. The apparatus for removing tar deposits at the bottom of an air flotation oil separator according to claim 4, characterized in that, The shape and size of the aeration head (16) are smaller than the shape and size inside the through hole (19). The aeration head (16) is connected to the connecting pipe (3). The connecting pipe (3) is connected to the jet pump outlet pipe (9) through the jet pump outlet valve (4).

Images