Automatic defoaming device for foam tank
By installing low-level and high-level immersion alarms and camera monitoring systems in the foam tank, and interlocking with the defoamer spraying system, the problem of environmental pollution caused by false foam in the biological desulfurization process of coke oven gas was solved, and the accurate measurement of the false foam level and automatic defoaming were achieved.
Patent Information
- Application Number
- CN202423224562.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the biological desulfurization process of coke oven gas, the generation of false bubbles causes environmental pollution, and conventional level gauges cannot accurately measure the level of false bubbles, making it impossible to start the defoaming system in a timely manner.
An automatic defoaming device for foam tanks is designed, which utilizes low-level and high-level immersion alarms combined with a camera monitoring system to interlock the defoamer spraying system. The immersion alarms accurately measure the level of the foamy liquid and activate the defoamer spraying.
It enables timely and effective control of bubbling, avoids environmental pollution, and ensures the accuracy of liquid level measurement and the automated response of the defoaming system.
Smart Images
Figure CN223747027U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of automatic defoaming devices of foam tank. BACKGROUND
[0002] In the coke oven gas biological desulfurization process, the desulfurization rich liquid and air are mixed and then enter the regeneration tank through the top injector of the regeneration tank, and the oxidation-reduction reaction occurs in the regeneration tank. At this time, the sulfur particles in the "rich liquid" will adhere to the surface of small bubbles to form sulfur foam overflow into the foam tank. When the inlet gas parameters fluctuate and the suspended sulfur content in the system is low, the sulfur foam will be weak and produce virtual bubbles. At this time, if the regeneration tank cannot effectively prevent the generation of virtual bubbles, a large amount of virtual bubbles will overflow into the foam tank. The foam tank is the terminal storage device for virtual bubbles. If the virtual bubbles are not properly treated, a large amount of virtual bubbles will overflow and cause environmental pollution.
[0003] Since virtual bubbles are the product of gas, solid and liquid, conventional liquid level meters cannot accurately measure them. Therefore, it is urgent to accurately measure the liquid level of virtual bubbles and timely interlock the defoaming system. SUMMARY
[0004] To solve the problems existing in the prior art, the utility model provides an automatic defoaming device for a foam tank. The device uses a water immersion alarm to accurately measure the virtual bubbles in the high-position virtual bubble overflow chamber and the low-position virtual bubble overflow chamber, and interlocks the defoamer spraying system to timely and effectively control the virtual bubbles.
[0005] The utility model solves the above technical problems by providing an automatic defoaming device for a foam tank. The device includes a foam tank. A low-position virtual bubble overflow chamber is arranged on one side of the foam tank. The low-position virtual bubble overflow chamber is connected to the inside of the foam tank through a hole groove one. A high-position virtual bubble overflow chamber is arranged on the other side of the foam tank. The high-position virtual bubble overflow chamber is connected to the inside of the foam tank through a hole groove two. A low-position water immersion alarm and a high-position water immersion alarm are respectively arranged on one side of the low-position virtual bubble overflow chamber and the high-position virtual bubble overflow chamber. The bottom of the low-position virtual bubble overflow chamber and the high-position virtual bubble overflow chamber is respectively connected to the inside of the foam tank through a low-position drain and a high-position drain. A low-position automatic valve and a high-position automatic valve are respectively installed on the low-position drain and the high-position drain.
[0006] The utility model is further defined as follows:
[0007] Preferably, the device further includes a monitoring system. The monitoring system includes a viewing hole and a camera. The viewing hole is arranged on one side of the top of the foam tank and is located on the same side as the high-position virtual bubble overflow chamber. The camera is arranged on one side of the viewing hole through a support and monitors the virtual bubbles in the foam tank through the viewing hole.
[0008] Preferably, the spraying system comprises a defoaming agent tank, a defoaming agent pump, a nozzle and a spraying ring pipe, the spraying ring pipe is provided with a plurality of nozzles and is fixed to the inner wall of the top of the foam tank, one side of the spraying ring pipe is connected with the defoaming agent tank, and the defoaming agent pump is installed on the spraying pipe.
[0009] Preferably, one side of the bottom of the low-position virtual bubble overflow cavity and the high-position virtual bubble overflow cavity is a slope structure, and the slope is greater than or equal to 45°.
[0010] Preferably, the included angle between the low-position discharge channel and the high-position discharge channel and the foam tank is greater than or equal to 45°.
[0011] Preferably, the installation heights of the low-position water immersion alarm and the high-position water immersion alarm are lower than the heights of the hole groove one and the hole groove two, respectively.
[0012] Preferably, the high-position water immersion alarm is signal interlocked with the defoaming agent pump.
[0013] The foam tank automatic defoaming device has the advantages that:
[0014] The foam tank automatic defoaming device has the advantages that: BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The foam tank automatic defoaming device has the advantages that: DETAILED DESCRIPTION EMBODIMENT
[0016] The foam tank automatic defoaming device has the advantages that: Figure 1 As shown in the drawing, the foam tank automatic defoaming device comprises a foam tank 1, a monitoring system and a spraying system, one side of the foam tank 1 is provided with a low-position virtual bubble overflow cavity 2, the low-position virtual bubble overflow cavity 2 is connected with the inside of the foam tank through a hole groove one 14, the other side of the foam tank 1 is provided with a high-position virtual bubble overflow cavity 5, the high-position virtual bubble overflow cavity 5 is connected with the inside of the foam tank through a hole groove two 15, a low-position water immersion alarm 3 and a high-position water immersion alarm 6 are arranged on one side of the low-position virtual bubble overflow cavity 2 and the high-position virtual bubble overflow cavity 5, respectively, the installation heights of the low-position water immersion alarm 3 and the high-position water immersion alarm 6 are lower than the heights of the hole groove one and the hole groove two, respectively, one side of the bottom of the low-position virtual bubble overflow cavity 2 and the high-position virtual bubble overflow cavity 5 is a slope structure, and the slope is 45°.
[0017] The low virtual bubble overflow chamber 2 and the bottom of the high virtual bubble overflow chamber 5 are connected with the inside of the foam tank through the low and high level drain respectively, and the angle between the low and high level drain and the foam tank is 45°, and the low and high level automatic valves 4 and 7 are respectively installed on the low and high level drain;
[0018] The monitoring system comprises an observation hole 8 and a camera 9, the observation hole 8 is arranged on one side of the top of the foam tank and is located on the same side as the high virtual bubble overflow chamber 5, and the camera 9 is arranged on one side of the observation hole 8 through a support and monitors the virtual bubble in the foam tank through the observation hole;
[0019] The spraying system comprises a defoaming agent tank 10, a defoaming agent pump 11, a nozzle 12 and a spraying ring pipe 13, a plurality of nozzles are arranged on the spraying ring pipe and are fixed to the inner wall of the top of the foam tank, so as to ensure the coverage of the cross section of the foam tank except the position of the stirrer, and a spraying pipeline on one side of the spraying ring pipe is connected with the defoaming agent tank 10, and the defoaming agent pump 11 is installed on the spraying pipeline and is signal interlocked with the high level water immersion alarm 6.
[0020] The height H1 of the hole and groove one in the embodiment is arranged at 2 / 3 of the height of the foam tank and is connected with the low virtual bubble overflow chamber 2, so as to ensure the height of the low virtual bubble overflow chamber and avoid the interference of normal sulfur foam and timely detect the rapidly generated virtual bubble.
[0021] The diameter H2 of the hole and groove one connected with the height of the foam tank in the low virtual bubble overflow chamber 2 is 0.2m, so as to ensure that the virtual bubble can be rapidly overflowed to the low virtual bubble overflow chamber 2, so as to make the low level water immersion alarm 3 timely feedback.
[0022] The height H3 of the cavity of the low virtual bubble overflow chamber 2 is 0.3m, the height H4 from the low level water immersion alarm 3 to the bottom of the low virtual bubble overflow chamber 2 is 0.15m, so as to ensure that the foam overflow chamber 2 can be filled with virtual bubble, improve the sensitivity of the low level water immersion alarm 3, the slope α of one side of the bottom plate of the low virtual bubble overflow chamber 2 is greater than or equal to 45°, the slope β of the low level drain is greater than or equal to 45°, so as to ensure that the virtual bubble in the low virtual bubble overflow chamber 2 can be drained through the low level automatic valve 4.
[0023] The height H5 of the high virtual bubble overflow chamber 5 is 0.5m, so as to ensure the height of the high virtual bubble overflow chamber 5, avoid the interference of normal sulfur foam, timely detect the rapidly generated virtual bubble, and give the reaction time of the spraying system and the monitoring system to prevent the overflow of sulfur foam.
[0024] The diameter H2 of the hole and groove one connected with the height of the foam tank in the high virtual bubble overflow chamber 5 is 0.2m, so as to ensure that the virtual bubble can be rapidly overflowed to the high virtual bubble overflow chamber 5, so as to make the high level water immersion alarm 6 timely feedback.
[0025] The height H3 of the high-position virtual bubble overflow cavity 5 is 0.3 m, the height H4 of the high-position virtual bubble overflow cavity 5 from the bottom of the cavity is 0.15 m, the high-position virtual bubble overflow cavity 5 can be filled with virtual bubbles, the sensitivity of the high-position virtual bubble overflow cavity 5 is improved, the slope alpha of the bottom plate of the high-position virtual bubble overflow cavity 5 is greater than or equal to 45 degrees, and the slope beta of the high-position virtual bubble overflow cavity 5 is greater than or equal to 45 degrees, so that the virtual bubbles in the high-position virtual bubble overflow cavity 5 can be discharged through the high-position automatic valve 7.
[0026] The principle of the embodiment is as follows: under normal conditions, the camera 9 monitors the virtual bubble in the tank through the observation hole 8 and feeds back to the control room, when the virtual bubble in the regenerating tower of the upstream equipment cannot be controlled in time, a large amount of overflow will flow into the foam tank, and the virtual bubble is a product of gas, solid and liquid, and a conventional liquid level meter cannot accurately measure it, so the present application is needed to measure and automatically remove the virtual bubble, when the virtual bubble liquid level rises to the height H1 of the hole groove, the overflow enters the low-position virtual bubble overflow cavity 2, at this time, the low-position automatic valve 4 is closed, the virtual bubble gradually accumulates at the bottom of the low-position virtual bubble overflow cavity 2, when the liquid level rises to the height H4, the low-position water immersion alarm 3 detects the liquid phase in the virtual bubble and alarms, the camera 9 monitors the virtual bubble in the tank through the observation hole 8 and feeds back to the control room to monitor the virtual bubble at any time. When the virtual bubble liquid level in the foam tank body 1 rises to the height H5 from the top of the tank plus the height H2 of the hole groove two, the virtual bubble overflow enters the high-position virtual bubble overflow cavity 5, at this time, the high-position automatic valve 7 is closed, the virtual bubble gradually accumulates at the bottom of the high-position virtual bubble overflow cavity 5, when the liquid level rises to the height H4, the high-position water immersion alarm 6 detects the liquid phase in the virtual bubble and alarms, and the deforming agent pump 11 is started in interlocking mode to spray the deforming agent, the camera 9 monitors the virtual bubble in the tank through the observation hole 8 and feeds back to the control room. When the deforming agent pump 11 is started, the high-position automatic valve 7 and the low-position automatic valve 4 are opened synchronously, as the virtual bubble is gradually eliminated, the virtual bubble liquid level decreases, the high-position automatic valve 7 and the low-position automatic valve 4 respectively discharge the virtual bubble in the high-position virtual bubble overflow cavity 5 and the low-position virtual bubble overflow cavity 2, the high-position water immersion alarm 6 cancels the alarm, and the deforming agent pump 11 stops running.
[0027] In addition to the above-mentioned embodiments, the present application can also have other implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope of the present application.
Claims
1. A device for automatic defoaming of a froth tank, comprising a froth tank (1), characterized in that: The foam tank (1) is provided with a low virtual bubble overflow chamber (2) on one side, which is connected with the inside of the foam tank through hole groove one (14), the other side of the foam tank (1) is provided with a high virtual bubble overflow chamber (5), which is connected with the inside of the foam tank through hole groove two (15), the low virtual bubble overflow chamber (2) and the high virtual bubble overflow chamber (5) are respectively provided with a low water immersion alarm (3) and a high water immersion alarm (6) on one side, and the low virtual bubble overflow chamber (2) and the high virtual bubble overflow chamber (5) are respectively connected with the inside of the foam tank through the low discharge and the high discharge, and the low discharge and the high discharge are respectively provided with a low automatic valve (4) and a high automatic valve (7).
2. The automatic defoaming device for a foam tank according to claim 1, characterized by: It also includes a monitoring system, the monitoring system includes an observation hole (8) and a camera (9), the observation hole is provided on one side of the top of the foam tank and is located on the same side with the high virtual bubble overflow chamber (5), the camera (9) is provided on one side of the observation hole (8) through the support, and the foam tank is monitored through the observation hole.
3. The automatic foam eliminating device for a foam tank according to claim 2, characterized in that: It also includes a spraying system, the spraying system includes a defoaming agent tank (10), a defoaming agent pump (11), a nozzle (12) and a spraying ring pipe (13), the spraying ring pipe is provided with a plurality of nozzles and is fixed on the inner wall of the top of the foam tank, one side of the spraying ring pipe is connected with the defoaming agent tank (10), and the defoaming agent pump (11) is installed on the spraying pipeline, and the spraying ring pipe (13).
4. The automatic foam eliminating device for a foam tank according to claim 1, characterized in that: The bottom side of the low virtual bubble overflow chamber (2) and the high virtual bubble overflow chamber (5) is a slope structure, and the slope is greater than or equal to 45°.
5. The automatic foam eliminating device for a foam tank according to claim 1, characterized in that: The included angle between the low discharge and the high discharge and the foam tank is greater than or equal to 45°.
6. The automatic foam eliminating device for a foam tank according to claim 1, characterized in that: The installation height of the low water immersion alarm (3) and the high water immersion alarm (6) is lower than the height of hole groove one and hole groove two respectively.
7. The automatic foam eliminating device for a foam tank according to claim 3, characterized in that: The high water immersion alarm (6) and the defoaming agent pump (11) are signal interlocked.