On-line metering device for the fermentation of corn steep liquor

Abstract

The utility model discloses a corn pulp fermentation process in the on -line metering device of bubble enemy, including the measuring jar, and the lower part of measuring jar is installed with water inlet pipe and bubble enemy granule feed pipe respectively, and the inner wall of measuring jar is installed with support, and the support is installed with the buffer board corresponding with the water outlet end of water inlet pipe, and the filter screen is installed in the measuring jar, and the aperture of filter screen is less than the maximum diameter of qualified bubble enemy granule, and the rotating rod is installed in the measuring jar, and the liftable floating plate is installed on the rotating rod, and the density of floating plate is less than the density of bubble enemy solution, and floating plate is located above the filter screen. The utility model has the beneficial effects that: through setting up support and buffer board cooperation can effectively reduce the water flow impact force of water outlet end of water inlet pipe, make the water flow of water inlet pipe steady enter the measuring jar, and the density of setting up floating plate is less than the density of bubble enemy solution can be in the process of liquid inlet and float steadily, thereby avoiding the deviation of liquid level sensor measurement caused by upper liquid level swing.

Description

Technical Field

[0001] This utility model relates to the field of fermentation process control and monitoring technology, and in particular to an online metering device for foaming agents during corn steep liquor fermentation. Background Technology

[0002] Foam Defoamer is a novel sucrose fatty acid ester product developed using the latest synthetic technology. It is a new type of fermentation-specific defoamer that can completely replace polyether. This product is non-toxic, highly efficient, heat-resistant, and has a long foam-suppressing time. Because it contains siloxane components, it defoams quickly. It suppresses foam and significantly reduces surface tension, interfacial tension between molasses and crystals, and viscosity of sugar paste (sugar solution). It effectively accelerates clarification and sedimentation, enhances sugar paste convection, shortens cooking time, improves molasses separation efficiency, reduces the gravitational purity of waste molasses, and increases total recovery during cooking. It is an excellent defoamer refining aid. Adding Foam Defoamer during corn fermentation aims to effectively control the generation and accumulation of foam. This directly relates to preventing material loss, maintaining the effective volume of the fermenter, reducing the risk of contamination, ensuring good oxygen and mass transfer, ensuring stable and controllable process parameters, and protecting the normal operation of online sensors. Therefore, the rational selection and addition of defoamers is an essential key control measure in corn fermentation, crucial for ensuring stable, efficient, and safe operation of the fermentation process and improving product yield and quality. The amount added needs to be precisely controlled. Too little will not effectively defoam, while too much may inhibit microbial growth or affect subsequent extraction and purification.

[0003] In the process of adding foaming agent, the foaming agent needs to be diluted with water first, and then added in a metered manner. However, some existing foaming agent adding devices experience internal liquid level fluctuations during the water dilution process, which causes deviations in the liquid level sensor's measurement and makes it impossible to accurately measure the amount of foaming agent added, thus affecting the fermentation quality of subsequent fermentation processes. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of some existing foaming agent adding devices, such as internal liquid level fluctuations during water dilution, which leads to deviations in the liquid level sensor measurement and makes it impossible to accurately measure the amount of foaming agent added, thus affecting the fermentation quality of subsequent fermentation processes. This invention provides an online foaming agent metering device for corn steep liquor fermentation.

[0005] The purpose of this utility model is achieved through the following technical solution: an online metering device for foaming agent during corn syrup fermentation, including a metering tank. A water inlet pipe and a foaming agent granule feed pipe are installed at the lower part of the metering tank. A support is installed on the inner wall of the metering tank, and a buffer plate corresponding to the water outlet of the water inlet pipe is installed on the support. A filter screen is installed inside the metering tank, with a pore size smaller than the maximum diameter of qualified foaming agent granules. A rotating rod is installed inside the metering tank, and a liftable floating plate is installed on the rotating rod. The density of the floating plate is less than the density of the foaming agent solution. The floating plate is located above the filter screen. The water outlet of the water inlet pipe and the discharge outlet of the foaming agent granule feed pipe are both located between the lowest point of the floating plate and the filter screen. By setting up the support and buffer plate in combination, the impact force of the water flow at the water outlet of the water inlet pipe can be effectively reduced, allowing the water flow provided by the water inlet pipe to enter the metering tank stably. At the same time, setting the density of the floating plate to be less than the density of the foaming agent solution allows it to float stably during the liquid inlet process, thereby avoiding deviations in the liquid level sensor measurement caused by upper liquid level fluctuations.

[0006] Magnetic elements are installed on the floating plate, and a magnetic induction level sensor corresponding to the magnetic elements is installed on the top wall of the metering tank. A controller corresponding to the magnetic induction level sensor is installed on the metering tank. By setting the magnetic elements on the floating plate to cooperate with the magnetic induction level sensor, the rising distance of the floating plate can be monitored in real time. The controller calculates and converts the acquired data to complete the accurate metering of the foaming agent solution in the metering tank in real time.

[0007] A further technical solution involves installing a motor on the metering tank, with a rotating rod rotatably connected to the inner top wall of the tank. One end of the rotating rod penetrates the inner top wall of the tank and connects to the power output end of the motor. A stirring blade is installed on the rotating rod, with the bottom of the stirring blade in contact with the filter screen. By setting the motor to drive the stirring blade to rotate, the metered solution is stirred, thereby rapidly dissolving and diluting the foaming agent particles. By setting the stirring blade to contact the filter screen, the foaming agent particles can be prevented from depositing on the filter screen, improving the dissolution efficiency of the foaming agent particles. Setting the pore size of the filter screen to be smaller than the maximum diameter of qualified foaming agent particles can prevent unqualified particles from entering the filter.

[0008] A further technical solution involves installing a flow regulating valve on the inlet pipe. This valve is connected to a controller, which controls the opening of the flow regulating valve based on the liquid level data collected by a magnetic induction liquid level sensor. By coordinating the flow regulating valve with the controller, when the controller detects that the solution in the metering tank is close to the set liquid level, it controls the flow regulating valve to reduce its opening, thereby reducing the flow rate in the inlet pipe. This allows for more precise control of the inlet water volume and enables accurate control of solution preparation.

[0009] A further technical solution is to install a sealing cap at the inlet end of the foaming agent granule feed pipe. By setting the sealing cap, the foaming agent granule feed pipe can be sealed after adding foaming agent granules, thus preventing the foaming agent granule feed pipe from overflowing after water is added.

[0010] A further technical solution is to have two sets of symmetrical grooves on the inner side wall of the metering tank, with sliders corresponding to the grooves installed on both sides of the floating plate. The width of the sliders is smaller than the width of the grooves. By setting the grooves and sliders to cooperate, the floating plate can be limited, ensuring the stability of the floating plate when it floats and rises in the metering tank.

[0011] A further technical solution is to install a discharge valve at the bottom of the metering tank that is connected to the controller, and to discharge material after the configuration is completed by setting the discharge valve.

[0012] A further technical solution is to install a transparent observation window on the metering tank that corresponds to the filter screen. By setting a transparent observation window, it is easy to observe the dissolution and dilution of the foaming agent particles on the filter screen.

[0013] This invention has the following advantages: By combining a bracket and a buffer plate, this invention can effectively reduce the impact force of the water flow at the outlet of the inlet pipe, allowing the water flow provided by the inlet pipe to enter the metering tank stably. At the same time, the density of the floating plate is less than that of the foaming agent solution, so it can float stably during the liquid inlet process, thereby avoiding deviations in the liquid level sensor measurement caused by the upper liquid level swaying. By combining the magnetic element on the floating plate with the magnetic induction liquid level sensor, the rising distance of the floating plate can be monitored in real time. The controller calculates and converts the acquired data to complete the accurate real-time measurement of the foaming agent solution in the metering tank. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the buffer plate of this utility model;

[0016] Figure 3 This is a front view structural diagram of the present utility model;

[0017] In the diagram, 1. Metering tank; 2. Water inlet pipe; 3. Foaming agent granule feed pipe; 4. Rotating rod; 5. Floating plate; 6. Magnetic element; 7. Magnetic induction liquid level sensor; 8. Flow regulating valve; 9. Support; 10. Buffer plate; 11. Controller; 12. Slide chute; 13. Sliding block; 14. Motor; 15. Stirring blade; 16. Filter screen; 17. Sealing cover; 18. Discharge valve; 19. Transparent observation window. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-3As shown, the online metering device for the fermentation of corn syrup includes a metering tank 1. The lower part of the metering tank 1 is equipped with a water inlet pipe 2 and a foaming agent granule feed pipe 3. A support 9 is installed on the inner wall of the metering tank 1, and a buffer plate 10 corresponding to the outlet end of the water inlet pipe 2 is installed on the support 9. A filter screen 16 is installed inside the metering tank 1, with a pore size smaller than the maximum diameter of qualified foaming agent granules. A rotating rod 4 is installed inside the metering tank 1, and a liftable floating plate 5 is installed on the rotating rod 4. The floating plate 5 has multiple sets of equidistant through holes. The density of the floating plate 5 is less than the density of the foaming agent solution. The floating plate 5 is located above the filter screen 16. The outlet end of the water inlet pipe 2 and the outlet end of the foaming agent granule feed pipe 3 are both located between the lowest point of the floating plate 5 and the filter screen 16. This arrangement allows for the pre-dissolution of the foaming agent granules during the water inlet process. The floating plate 5, in conjunction with the bracket 9 and the buffer plate 10, can effectively reduce the impact force of the water flow at the outlet of the inlet pipe 2, so that the water flow provided by the inlet pipe 2 can enter the metering tank 1 stably. At the same time, the density of the floating plate 5 is less than that of the foaming agent solution, so it can float stably during the liquid inlet process, thereby avoiding the upper liquid level swaying and causing the liquid level sensor to deviate in the measurement.

[0025] A magnetic element 6 is installed on the floating plate 5, and a magnetic induction liquid level sensor 7 corresponding to the magnetic element 6 is installed on the top wall of the metering tank 1. A controller 11 corresponding to the magnetic induction liquid level sensor 7 is installed on the metering tank 1. By setting the magnetic element 6 on the floating plate 5 to cooperate with the magnetic induction liquid level sensor 7, the rising distance of the floating plate 5 can be monitored in real time. The controller 11 calculates and converts the acquired data to complete the accurate metering of the foam solution in the metering tank 1 in real time.

[0026] A motor 14 is installed on the metering tank 1. A rotating rod 4 is rotatably connected to the inner top wall of the metering tank 1. One end of the rotating rod 4 passes through the inner top wall of the metering tank 1 and is connected to the power output end of the motor 14. A stirring blade 15 is installed on the rotating rod 4. The bottom of the stirring blade 15 contacts the filter screen 16. By setting the motor 14 to drive the stirring blade 15 to rotate, the metered solution is stirred, thereby quickly dissolving and diluting the foaming agent particles. By setting the stirring blade 15 to contact the filter screen 16, the foaming agent particles can be prevented from depositing on the filter screen 16, thus improving the dissolution efficiency of the foaming agent particles. Setting the pore size of the filter screen 16 to be smaller than the maximum diameter of qualified foaming agent particles can prevent unqualified particles from entering the filter.

[0027] A flow regulating valve 8 is installed on the water inlet pipe 2. The flow regulating valve 8 is connected to the controller 11. The controller 11 controls the opening of the flow regulating valve 8 based on the liquid level data collected by the magnetic induction liquid level sensor 7. By setting the flow regulating valve 8 in coordination with the controller 11, when the controller 11 detects that the solution in the metering tank 1 is close to the set liquid level, the controller 11 controls the flow regulating valve 8 to reduce the opening, thereby reducing the flow rate of the water inlet pipe 2. This allows for more precise control of the water inlet volume of the water inlet pipe 2, achieving precise control of solution preparation.

[0028] The feed end of the foaming agent granule feed pipe 3 is equipped with a sealing cap 17. By setting the sealing cap 17, the foaming agent granule feed pipe 3 can be sealed after adding foaming agent granules, so as to avoid the problem of overflow of foaming agent granule feed pipe 3 after subsequent water intake. The inner side wall of the metering tank 1 is provided with two sets of symmetrical sliding grooves 12 about the floating plate 5. The two sides of the floating plate 5 are equipped with sliders 13 corresponding to the sliding grooves 12. The width of the sliders 13 is smaller than the width of the sliding grooves 12. By setting the sliding grooves 12 and the sliders 13 to cooperate, the floating plate 5 can be limited to ensure the stability of the floating plate 5 when floating and rising in the metering tank 1.

[0029] The bottom of the metering tank 1 is equipped with a discharge valve 18 connected to the controller 11. The discharge valve 18 is set to discharge material after the configuration is completed. The metering tank 1 is equipped with a transparent observation window 19 corresponding to the filter screen 16. The transparent observation window 19 makes it easy to observe the dissolution and dilution of the foam particles on the filter screen 16.

[0030] The working process of this utility model is as follows: First, the required foaming agent granules are added into the metering tank 1 through the foaming agent granule feed pipe 3. The sealing cover 17 is closed to seal the foaming agent granule feed pipe 3. Then, the flow regulating valve 8 is activated to add water into the metering tank 1 to dissolve and dilute the foaming agent granules. During water intake, the support 9 and the buffer plate 10 can buffer the water intake, improve the stability of the water flow in the metering tank 1, and reduce the swaying of the liquid level in the metering tank 1. During the water intake process, the solution in the metering tank 1 will push the floating plate 5 to float. The magnetic induction liquid level sensor 7 can monitor the magnetic element 6 on the floating plate 5. The controller 11 detects the liquid level data in the metering tank 1 through the magnetic induction liquid level sensor 7. Two sets of liquid levels can be preset through the controller 11. The data consists of two sets: the first set is the liquid level data for setting the required liquid level, and the second set is the liquid level data that is close to and lower than the required liquid level. When the controller 11 obtains the actual liquid level through the magnetic induction liquid level sensor 7 and it reaches the liquid level data value of the second set that is close to and lower than the required liquid level, the controller 11 controls the flow regulating valve 8 to reduce the liquid flow rate of the water inlet pipe 2, so as to accurately measure the solution. When the liquid level data value of the first set is reached, the controller 11 controls the flow regulating valve 8 to close the water inlet pipe 2, and then starts the motor 14 to drive the stirring blade 15 to rotate and mix the solution and foaming agent particles in the metering tank 1, thereby completing the dissolution and dilution of the foaming agent particles. Finally, the discharge valve 18 is opened to discharge the prepared foaming agent solution.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An online metering device for foaming agents during corn steep liquor fermentation, comprising a metering tank (1), characterized in that: The lower part of the metering tank (1) is equipped with a water inlet pipe (2) and a foaming agent granule feed pipe (3). The inner wall of the metering tank (1) is equipped with a bracket (9). A buffer plate (10) corresponding to the water outlet of the water inlet pipe (2) is installed on the bracket (9). A filter screen (16) is installed inside the metering tank (1). The aperture of the filter screen (16) is smaller than the maximum diameter of qualified foaming agent granules. A rotating rod (4) is installed inside the metering tank (1). A liftable floating plate (5) is installed on the rotating rod (4). The density of the floating plate (5) is smaller than the density of the foaming agent solution. The floating plate (5) is located above the filter screen (16). The water outlet of the water inlet pipe (2) and the discharge outlet of the foaming agent granule feed pipe (3) are both located between the lowest position of the floating plate (5) and the filter screen (16). A magnetic element (6) is installed on the floating plate (5), a magnetic induction liquid level sensor (7) corresponding to the magnetic element (6) is installed on the top wall of the metering tank (1), and a controller (11) corresponding to the magnetic induction liquid level sensor (7) is installed on the metering tank (1).

2. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: A motor (14) is installed on the metering tank (1). The rotating rod (4) is rotatably connected to the inner top wall of the metering tank (1). One end of the rotating rod (4) passes through the inner top wall of the metering tank (1) and is connected to the power output end of the motor (14). A stirring blade (15) is installed on the rotating rod (4). The bottom of the stirring blade (15) is in contact with the filter screen (16).

3. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: A flow regulating valve (8) is installed on the water inlet pipe (2). The flow regulating valve (8) is connected to the controller (11). The controller (11) controls the opening degree of the flow regulating valve (8) according to the liquid level data collected by the magnetic induction liquid level sensor (7).

4. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: The feed end of the foaming agent particle feed pipe (3) is equipped with a sealing cap (17).

5. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: The inner side wall of the metering tank (1) is provided with two sets of symmetrical grooves (12) about the floating plate (5). The two sides of the floating plate (5) are equipped with sliders (13) corresponding to the grooves (12). The width of the sliders (13) is smaller than the width of the grooves (12).

6. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: The bottom of the metering tank (1) is equipped with a discharge valve (18) connected to the controller (11).

7. The online metering device for foaming agents during corn steep liquor fermentation according to claim 1, characterized in that: The metering tank (1) is equipped with a transparent observation window (19) corresponding to the filter screen (16).

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