A defoamer delivery system

Abstract

The application provides a defoaming agent conveying system and relates to the field of strip cleaning. In the technical scheme, when it is detected that the thickness value of the foam in the liquid storage barrel is high, the first infusion device is triggered to be turned on, and the first infusion device conveys the defoaming agent stored in the liquid storage tank to the liquid storage barrel, so that the defoaming agent injected into the liquid storage barrel is consistent with the thickness value of the foam, and the defoaming agent waste is reduced on the basis of eliminating the foam in the liquid storage barrel.

Description

Technical Field

[0001] This application relates to the field of strip steel cleaning, and in particular to an antifoaming agent delivery system. Background Technology

[0002] During the strip steel manufacturing process, the strip steel also needs to be cleaned to remove impurities such as oil and dust from its surface. This cleaning is primarily achieved by spraying alkaline solution onto the upper and lower surfaces of the strip steel. After cleaning, the alkaline solution can be collected and stored in a storage tank for reuse.

[0003] However, the alkaline solution will generate a lot of foam during the recycling process. The foam will accumulate in the storage tank and cause the foam to overflow, resulting in the waste of alkaline solution.

[0004] In related technologies, to eliminate foam in a storage tank, the main method is to directly inject the entire container of defoamer into the tank using an injection device. However, this method may result in the dosage of defoamer not matching the amount of foam, leading to a potential waste of defoamer. Utility Model Content

[0005] In view of this, this application provides a defoamer delivery system, the main purpose of which is to inject an appropriate amount of defoamer into the storage tank, thereby eliminating foam in the storage tank while saving the amount of defoamer used.

[0006] To achieve the above objectives, the first aspect of this application discloses an antifoaming agent delivery system, comprising:

[0007] A storage tank containing an alkaline solution, on the surface of which foam floats;

[0008] A liquid storage tank containing defoamer;

[0009] A first liquid level gauge is installed on the storage tank and is used to detect the thickness of the foam on the surface of the alkaline solution.

[0010] A first infusion device is connected to the storage tank and the storage container. The electrical signal that the foam thickness reaches a preset thickness value is the trigger signal for the first storage device to turn on. When the first storage and infusion device is turned on, it delivers the defoamer from the storage container to the storage tank to eliminate the foam on the alkaline solution.

[0011] Optionally, the first infusion device includes a nozzle:

[0012] The nozzle is positioned above the storage tank. When the first infusion device is activated, the defoamer obtained from the storage tank is sprayed into the storage tank through the nozzle.

[0013] Optionally, the system further includes: a control circuit;

[0014] The input terminal of the control circuit is connected to the first liquid level gauge, and the output terminal of the control circuit is connected to the first infusion device. When the thickness of the foam reaches a preset thickness value, the control circuit sends an electrical signal to the first infusion device to trigger the first infusion device to conduct.

[0015] Optionally, the first infusion device includes a metering pump:

[0016] When the first infusion device is turned on, the metering pump is activated, and the metering pump is used to pump the defoamer in the storage tank to the storage container.

[0017] Optionally, the first infusion device includes:

[0018] An overflow valve is installed between the defoamer outlet of the metering pump and the storage tank. When the metering pump delivers the defoamer obtained from the storage tank to the storage tank through the defoamer outlet, the overflow valve is used to control the pressure value of the defoamer when it passes through the defoamer outlet.

[0019] Optionally, the system further includes: a flow meter;

[0020] The flow meter is installed in the first infusion device and is connected to the control circuit. When the first infusion device delivers the defoamer from the storage tank to the storage container, the flow meter is used to obtain the transmission flow rate of the defoamer, and the control circuit is used to obtain the transmission flow rate.

[0021] Optionally, the first infusion device includes at least one ball valve:

[0022] At least one of the ball valves is connected to the control circuit. The ball valve is used to control the first infusion device to be turned on or off according to the command output by the output terminal of the control circuit. When the first infusion device is turned off, it stops delivering the defoamer from the storage tank to the storage container.

[0023] Optionally, the system further includes: a second infusion device and a containerized defoamer.

[0024] The defoamer in the drum is a replaceable container used to replenish the defoamer in the storage tank;

[0025] The second infusion device is connected to the storage tank and the barrelled defoamer. When the second infusion device is connected, and the barrelled defoamer contains the defoamer, the second infusion device is used to replenish the defoamer in the barrelled defoamer to the storage tank.

[0026] Optionally, the defoamer in the drum is positioned higher than the liquid storage tank.

[0027] Optionally, the system further includes:

[0028] The second liquid level gauge is installed in the storage tank. The second liquid level gauge is used to obtain the height value of the defoamer in the storage tank and detect the height value. When the height value reaches a preset height value, the electrical signal is used as the trigger signal for the second infusion device to be turned on.

[0029] In summary, based on the technical solution disclosed in this application, and addressing the technical problem of the dosage of defoamer not matching the foam in related technologies, this application provides a defoamer delivery system, comprising: a storage tank containing alkaline solution with foam floating on its surface; a storage container containing defoamer; a first level gauge mounted on the storage tank to detect the thickness of the foam on the surface of the alkaline solution; and a first delivery device connected to the storage tank and the storage container, wherein an electrical signal indicating that the foam thickness reaches a preset thickness value serves as a trigger signal for the first storage device to activate, and when activated, the first storage and delivery device delivers defoamer from the storage container to the storage tank to eliminate the foam on the alkaline solution. In the technical solution of this application, the first liquid level gauge detects the thickness of the foam in the storage tank. When the foam thickness is high, the first infusion device is activated. The first infusion device delivers the defoamer stored in the storage tank to the storage tank. This can make the defoamer injected into the storage tank match the foam thickness, thereby eliminating the foam in the storage tank and reducing the waste of defoamer.

[0030] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the defoamer delivery system provided in an embodiment of this application is shown. Figure 1 ;

[0034] Figure 2 A schematic diagram of the defoamer delivery system provided in an embodiment of this application is shown. Figure 2 ;

[0035] Figure 3 A schematic diagram of the defoamer delivery system provided in an embodiment of this application is shown. Figure 3 . Detailed Implementation

[0036] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0037] The main function of the cold rolling decarburization annealing unit is to anneal and coat strip steel. The cleaning section, as the pre-furnace strip steel cleaning process section of the annealing production line, employs a high-efficiency, water-saving degreasing device, combining physical and chemical methods to clean the strip steel, removing oil and other impurities from the surface and ensuring a clean surface. Its cleaning effect directly affects the surface quality of the strip steel and the formation of the oxide film, making it a crucial step in the strip steel production process.

[0038] After the strip steel enters the cleaning section, it first enters the alkaline spraying and brushing tank stage. A circulating pump sprays alkaline solution at 60℃ and 0.25MPa onto the upper and lower surfaces of the strip steel. Brush rollers then scrub the strip steel, removing oil, dust, and other impurities from its surface. Afterward, squeeze rollers remove excess alkaline solution from the strip steel surface. The remaining solution flows back through a return pipe at the bottom of the brushing tank, passing through a brush filter and a magnetic filter to remove oil, iron powder, and other impurities. It then flows back to the storage tank, where the circulating pump transports the solution back to the alkaline spraying and brushing tank. This cycle of spraying and rinsing continues. During this process, the cleaning solution generates a large amount of foam, which gradually accumulates in the storage tank, eventually overflowing with a significant amount of solution and resulting in substantial waste.

[0039] In related technologies, the main method to achieve foam removal is to inject the entire container of defoamer into the storage tank to eliminate the foam in the storage tank. However, the amount of defoamer injected into the storage tank is easily inconsistent with the volume of foam. If too much defoamer is injected, it is easy to waste the defoamer.

[0040] This embodiment provides an antifoaming agent delivery system, such as Figure 1 As shown, it includes:

[0041] Storage tank 11 contains alkaline solution with foam floating on its surface.

[0042] Storage tank 12 contains defoamer;

[0043] The first liquid level gauge 111 is installed on the storage tank and detects the thickness of the foam on the surface of the alkaline solution.

[0044] The first infusion device 13 is connected to the storage tank and the storage container. The electrical signal that the foam thickness reaches the preset thickness value is the trigger signal for the first storage device to be turned on. When the first storage and infusion device is turned on, it delivers defoamer from the storage container to the storage tank to eliminate foam on the alkaline solution.

[0045] In this embodiment, the first level gauge 111 can be a radar level gauge. The first level gauge 111 acquires the thickness value of the foam in the storage tank 11 in real time. The foam thickness value can be used to calculate the foam volume. When the foam volume is large, the first level gauge 111, upon detecting that the thickness value has reached a preset thickness value, can send a trigger electrical signal. At this point, it can be considered that defoamer needs to be injected into the storage tank. The trigger electrical signal can activate the first infusion device 13, allowing the defoamer in the storage tank 12 to be injected into the storage tank through the first infusion device, thereby eliminating the foam in the storage tank. Using the technical solution of this embodiment, when the foam reaches a certain volume, the first infusion device can be activated to deliver defoamer to the storage tank, thereby eliminating the defoamer in the storage tank. The dosage of defoamer required to eliminate the preset thickness value of foam can be adapted to the dosage of defoamer in the storage tank.

[0046] Additionally, during the process of the first infusion device delivering defoamer to the storage tank, when the thickness of the continuously decreasing foam falls below a thickness threshold, the first level gauge can send a trigger signal to control the first infusion device to shut down, thus stopping the injection of defoamer into the storage tank.

[0047] In some embodiments, the first infusion device includes a nozzle:

[0048] The nozzle is positioned above the storage tank. When the first infusion device is activated, the defoamer obtained from the storage tank is sprayed into the storage tank through the nozzle.

[0049] To achieve uniform foam elimination, such as Figure 1 As shown, the first infusion device can be designed with a nozzle 14 so that the defoamer can be sprayed evenly into the storage tank, so that the foam can be eliminated evenly, thereby accelerating the foam elimination speed and reducing the waste of defoamer.

[0050] In some embodiments, the system further includes: a control circuit;

[0051] The input terminal of the control circuit is connected to the first liquid level gauge, and the output terminal of the control circuit is connected to the first infusion device. When the thickness of the foam reaches the preset thickness value, the control circuit sends a level signal to the first infusion device to trigger the first infusion device to conduct.

[0052] like Figure 1 As shown, the defoamer delivery system can be designed with a control circuit 15. The input terminal of the control circuit 15 can receive a trigger high-level signal from the first liquid level gauge. The control circuit can output a control level signal from its output terminal to directly control the first infusion device 13 to conduct, enabling the conducted first infusion device 13 to deliver defoamer. The control circuit can be a logic gate circuit, and the control circuit 15 can be pre-set with a truth table. Upon receiving the trigger high-level signal from the first liquid level gauge, the control circuit 15 can directly look up the control level signal corresponding to the trigger high-level signal in the truth table. The output terminal of the control circuit 15 outputs a control level signal to control the first infusion device 13 to conduct. The control level signal can be either a high-level signal or a low-level signal.

[0053] In some embodiments, the first infusion device includes a metering pump:

[0054] When the first infusion device is turned on, the metering pump is activated, which is used to pump the defoamer in the storage tank to the storage container.

[0055] The first infusion device delivers the defoamer through the combined action of the pump and pipeline. Therefore, as... Figure 1 As shown, in this embodiment, the first infusion device includes a metering pump 131 to pump the defoamer. Additionally, the metering pump 131 can be connected to a control circuit 15, which can control the activation of the metering pump 131 to enable the first infusion device to deliver the defoamer.

[0056] In some embodiments, the first infusion device includes:

[0057] An overflow valve is installed between the defoamer outlet of the metering pump and the storage tank. When the metering pump delivers the defoamer obtained from the storage tank to the storage tank through the defoamer outlet, the overflow valve is used to control the pressure value of the defoamer when it passes through the defoamer outlet.

[0058] In this embodiment, the overflow valve is installed between the defoamer outlet of the metering pump and the storage tank, such as... Figure 1 As shown in 132, when the first infusion device is turned on, the delivery pressure and flow rate of the defoamer at the metering pump outlet can be stabilized when the defoamer is output from the metering pump. When the first infusion device is turned off, the metering pump 131 is still running, the hydraulic pressure at the metering pump outlet increases, and the defoamer at the metering pump outlet can be pumped out of the storage tank and returned to the storage tank through the overflow valve.

[0059] In some embodiments, the system further includes: a flow meter;

[0060] The flow meter is installed in the first infusion device and is connected to the control circuit. When the first infusion device delivers the defoamer from the storage tank to the storage container, the flow meter is used to obtain the transmission flow rate of the defoamer, and the control circuit is used to obtain the transmission flow rate.

[0061] A flow meter can be installed in the first infusion device, such as Figure 1 As shown in 133, the flow meter 133 can acquire the flow rate of the defoamer at different locations in the first infusion device. When the first infusion device is turned on, the transmission status of the defoamer can be acquired. The flow meter 133 can upload the acquired defoamer flow rate to the control circuit, and the control circuit can transmit the defoamer flow rate to the display 16 for display through the programmable logic control circuit 151 to ensure the normal operation of the first infusion device.

[0062] In some embodiments, the first infusion device includes at least one ball valve:

[0063] At least one ball valve is connected to a control circuit. The ball valve is used to control the first infusion device to be turned on or off according to the instructions of the control circuit. When the first infusion device is turned off, it stops delivering the defoamer from the storage tank to the storage container.

[0064] A ball valve is a valve in which the opening and closing element (ball) is driven by a valve stem and rotates around the ball valve axis. It can be used to control the on / off operation of a first infusion device. Ball valves can be installed at different locations within the first infusion device, and at least one ball valve can be provided in the first infusion device. Furthermore, the ball valve in the first infusion device can be a pneumatic ball valve. For example, such as... Figure 1 As shown in the schematic diagram, a pneumatic ball valve 171 may be included. When the pneumatic ball valve 171 is closed, the first infusion device is disabled; when the pneumatic ball valve 171 is open, the first infusion device is activated. Additionally, at least one ball valve 172 may be provided in the first infusion device. During normal operation of the defoamer delivery system, ball valve 172 is closed. When the system requires maintenance or repair, the fault point in the system can be located by selectively closing or opening ball valve 172.

[0065] In some embodiments, such as Figure 1 As shown, a pressure-holding valve 134 is provided in the first transmission device 13. The pressure-holding valve 134 controls the flow rate in the pipeline of the first transmission device 13 through a rheostat, thereby realizing the flow rate control of the pipeline in the first transmission device 13. The pressure-holding valve 134 is installed in the first delivery device 13 between the flow meter and the storage tank. When the first transmission device 13 is turned on, the pressure-holding valve 134 can effectively maintain the pressure and flow rate of the defoamer delivered in the first delivery device 13 at a stable level, ensuring the accuracy of the flow meter measurement and preventing the defoamer from overflowing into the storage tank 12 due to the siphon effect in the pipeline.

[0066] In some embodiments, the system further includes: a second infusion device and a containerized defoamer.

[0067] Drum-packaged defoamer is a replaceable container used to replenish defoamer in storage tanks;

[0068] The second infusion device connects the storage tank and the barrelled defoamer. When the second infusion device is activated, if the barrelled defoamer contains defoamer, the second infusion device is used to replenish the defoamer in the barrelled defoamer to the storage tank.

[0069] The drummed defoamer is a defoamer packaged in a single drum and can be used to replenish the defoamer in the storage tank. The defoamer is transferred from the drummed defoamer to the storage tank via a second infusion device between the two.

[0070] In some embodiments, to facilitate the delivery of defoamer from the drum to the storage tank, the drum of defoamer is positioned higher than the storage tank. For example... Figure 1 As shown, the defoamer in the drum is 18, and the second infusion device is 19. Due to the height difference between the drum defoamer and the storage tank, gravity is used. When the drum defoamer contains defoamer, as... Figure 2 As shown, the defoamer in the drum is replenished to the storage tank via the second infusion device 19. When the defoamer in the drum is insufficient, it is replaced to ensure that the defoamer in the storage tank is always adequate.

[0071] In some embodiments, the system further includes:

[0072] The second liquid level gauge is installed in the storage tank. The second liquid level gauge is used to obtain the height value of the defoamer in the storage tank and detect the height value. When the height value reaches the preset height value, the electrical signal is used as the trigger signal to turn on the second infusion device.

[0073] A second level gauge is installed in the storage tank. The second level gauge is used to detect the height of the defoamer in the storage tank. When the height of the defoamer is low, it can be considered that there is insufficient defoamer in the storage tank. The preset height value represents the minimum height value at which the defoamer in the storage tank is insufficient.

[0074] When the second level gauge detects that the height of the defoamer in the storage tank has reached the preset height value, the second level gauge can send a trigger signal. When the second delivery device receives the trigger signal from the second level gauge, it can conduct to deliver the defoamer in the barrel to the storage tank through the second delivery device.

[0075] In some embodiments, when the second level gauge detects that the height of the defoamer in the storage tank exceeds the height warning value, the trigger signal issued by the second level gauge controls the second infusion device to stop, and the second infusion device stops transmitting the defoamer.

[0076] In some embodiments, such as Figure 1 As shown, the second level gauge 121 can be connected to the control circuit 15. When the second level gauge 121 detects that the height of the defoamer in the storage tank reaches the preset height value, the second level gauge 121 can send a trigger signal to the control circuit. The control circuit 15 controls the second infusion device 19 to be turned on, and the second infusion device 19 replenishes the defoamer in the barrel defoamer 18 to the storage tank 12 so that the defoamer in the storage tank 12 is sufficient.

[0077] The second level gauge 121 or the control circuit 15 controls the activation and deactivation of the second infusion device 19 by triggering the activation and deactivation of the ball valve 191 in the second infusion device 19.

[0078] In some embodiments, such as Figure 3 As shown, Figure 3 A schematic diagram showing the connection relationship of part of the first infusion device 13 in the storage tank 12. Figure 3 The image shows the metering pump 131 in the first infusion device.

[0079] In some embodiments, such as Figure 1 As shown, the defoamer delivery system also includes a waste liquid pit 20 and a valve 21. By opening valve 21 and observing the flow of defoamer at valve 21, the delivery status of the defoamer at valve 21 can be monitored. The defoamer flowing out of valve 21 can further flow into the waste liquid pit, preventing the defoamer from overflowing and causing damage to the environment surrounding the defoamer delivery system.

[0080] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0081] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of this specification. Clearly, those skilled in the art can make various alterations and modifications to this specification without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims and their equivalents, this specification also intends to include such modifications and modifications.

Claims

1. A defoamer delivery system, characterized in that, include: A storage tank containing an alkaline solution, on the surface of which foam floats; A liquid storage tank containing defoamer; A first liquid level gauge is installed on the storage tank and is used to detect the thickness of the foam on the surface of the alkaline solution. A first infusion device is connected to the storage tank and the storage container. The electrical signal that the foam thickness reaches a preset thickness value is the trigger signal for the first infusion device to turn on. When the first infusion device is turned on, it delivers the defoamer from the storage container to the storage tank to eliminate the foam on the alkaline solution.

2. The system according to claim 1, characterized in that, The first infusion device includes a nozzle: The nozzle is positioned above the storage tank. When the first infusion device is activated, the defoamer obtained from the storage tank is sprayed into the storage tank through the nozzle.

3. The system according to claim 1, characterized in that, The system also includes: The control circuit has its input terminal connected to the first liquid level gauge and its output terminal connected to the first infusion device. When the thickness of the foam reaches a preset thickness value, the control circuit sends a level signal to the first infusion device to trigger the first infusion device to conduct.

4. The system according to claim 3, characterized in that, The first infusion device includes a metering pump: When the first infusion device is turned on, the metering pump is activated, and the metering pump is used to pump the defoamer in the storage tank to the storage container.

5. The system according to claim 4, characterized in that, The first infusion device includes: An overflow valve is installed between the defoamer outlet of the metering pump and the storage tank. When the metering pump delivers the defoamer obtained from the storage tank to the storage tank through the defoamer outlet, the overflow valve is used to control the pressure value of the defoamer when it passes through the defoamer outlet.

6. The system according to claim 3, characterized in that, The system also includes: a flow meter; The flow meter is installed in the first infusion device and is connected to the control circuit. When the first infusion device delivers the defoamer from the storage tank to the storage container, the flow meter is used to obtain the transmission flow rate of the defoamer, and the control circuit is used to obtain the transmission flow rate.

7. The system according to claim 1, characterized in that, The first infusion device includes at least one ball valve: At least one of the ball valves is connected to a control circuit. The ball valve is used to control the first infusion device to be turned on or off according to the command output by the output terminal of the control circuit. When the first infusion device is turned off, it stops delivering the defoamer from the storage tank to the storage container.

8. The system according to claim 1, characterized in that, The system also includes: a second infusion device and a bottled defoamer. The defoamer in the drum is a replaceable container used to replenish the defoamer in the storage tank; The second infusion device is connected to the storage tank and the barrelled defoamer. When the second infusion device is connected, and the barrelled defoamer contains the defoamer, the second infusion device is used to replenish the defoamer in the barrelled defoamer to the storage tank.

9. The system according to claim 8, characterized in that, The defoamer in the barrel is positioned higher than the liquid storage tank.

10. The system according to claim 8, characterized in that, The system also includes: The second liquid level gauge is installed in the storage tank. The second liquid level gauge is used to obtain the height value of the defoamer in the storage tank and detect the height value. When the height value reaches a preset height value, the electrical signal is used as the trigger signal for the second infusion device to be turned on.

Images