A dynamic loosening system for intermediate bins

Abstract

This application discloses a dynamic loosening system for an intermediate silo, relating to the technical field of gypsum board production equipment. It utilizes a fan, a multi-nozzle distributor, and a backflush box. The fan generates a rapidly flowing airflow, the multi-nozzle distributor directs the airflow to the backflush box, and the backflush box guides the airflow into the silo, achieving loosening of the gypsum powder within the silo. This system has the advantages of low noise and minimal damage to the silo body. The multi-nozzle distributor sequentially directs the airflow into different nozzles, which in turn sequentially guide it into different backflush boxes, thus ensuring that different locations within the silo are sequentially exposed to the airflow, effectively loosening the gypsum powder. An analysis and processing device is also included. Based on the feeding speed information detected by the metering reamer, the analysis and processing device adjusts the fan's operating state to further loosen the gypsum powder in the silo, resulting in more efficient energy utilization.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production equipment technology, and in particular to a dynamic loosening system for intermediate silos. Background Technology

[0002] In the gypsum production process, calcined gypsum powder needs to be added to a mixer and mixed with other additives. Before this, the amount of calcined gypsum powder added needs to be precisely controlled. Unlike the conventional gypsum powder addition process, the amount of calcined gypsum powder added needs to be precisely controlled, so an intermediate silo is used. A metering cutter is set at the bottom of the intermediate silo to detect and control the amount of gypsum powder added. However, because the gypsum powder in the intermediate silo often sloshes, it is easy to cause a shortage of material at the position of the metering cutter. In the existing technology, the method to solve the above problem is to install a vibrating motor on the wall of the intermediate silo to loosen the material. However, this method has three problems: first, it is noisy; second, it is easy to cause fatigue damage to the silo wall; and third, it can only drive the vibrating motor with standard power, resulting in high energy consumption. Summary of the Invention

[0003] The purpose of this invention is to provide a low-energy-consumption, low-noise, and low-loss intermediate silo loosening system.

[0004] Therefore, this invention discloses a dynamic material loosening system for an intermediate silo, comprising:

[0005] Fan;

[0006] A multi-nozzle distributor, which is connected to the fan, allows airflow to be blown out from different nozzles in turn;

[0007] Several backflush boxes are respectively installed on the side wall of the silo and are respectively connected to different nozzles of the multi-nozzle distributor to guide the airflow in the multi-nozzle distributor into the silo;

[0008] An analysis and processing device is provided, which adjusts the operating state of the blower based on the feeding speed information detected by the metering reamer, in order to loosen the gypsum powder in the silo.

[0009] In some embodiments of this application, in order to adjust the operating state of the fan, a method for adjusting the operating state of the fan by the analysis and processing device is disclosed, the method comprising:

[0010] A standard feeding speed value is set;

[0011] Obtain the feeding speed information detected by the metering reamer, and determine the real-time feeding speed value of the metering reamer;

[0012] If the real-time feeding speed value is less than the standard feeding speed value, then the fan will be driven to operate;

[0013] If the real-time feeding speed value is greater than or equal to the standard feeding speed value, then the fan operation is stopped.

[0014] In some embodiments of this application, another method for adjusting the operating state of the fan is also disclosed, wherein the method for adjusting the operating state of the fan by the analysis and processing device includes:

[0015] Based on the correspondence between the feeding speed information and the fan drive status, a first fan drive strategy is established;

[0016] A wind turbine drive model is established for the operation capability of the wind turbine, and the wind turbine drive model is used to drive the wind turbine.

[0017] The fan drive model determines the real-time feeding speed based on the feeding speed information, and determines the drive command to drive the fan in the first fan drive strategy.

[0018] In some embodiments of this application, the content of the first fan drive strategy is disclosed. The first fan drive strategy includes several matching groups, and the matching groups include different segments of the feeding speed range and the corresponding fan drive commands.

[0019] In some embodiments of this application, in order to enable the system to gradually optimize the first wind turbine drive strategy, the method for driving the wind turbine operating state has been improved, and the method for driving the wind turbine operating state further includes:

[0020] Based on the feeding speed information, the real-time feeding speed is determined, and a real-time feeding speed curve is generated;

[0021] The fan is driven in the original way. The curve change characteristics of the real-time feeding speed curve are analyzed. The first fan driving strategy is modified according to the curve change characteristics to obtain the second driving strategy.

[0022] The wind turbine drive model drives the wind turbine to operate according to the second drive strategy.

[0023] In some embodiments of this application, a method for modifying the first wind turbine drive strategy is disclosed. The method for modifying the first wind turbine drive strategy includes:

[0024] Scan the real-time feeding speed curve and determine the segment of the real-time feeding speed curve in a stable state, obtain the current feeding speed and the drive command of the blower, and take the current feeding speed and the drive command of the blower as the optimal matching result.

[0025] Replace the matching groups with the same feeding speed in the first fan drive strategy with the feeding speed and fan drive command in the newly determined optimal matching results.

[0026] In some embodiments of this application, to avoid inefficient operation of the wind turbine, the modification of the first wind turbine drive strategy has been improved. The method for modifying the first wind turbine drive strategy further includes:

[0027] Scan the real-time feeding speed curve. If the real-time feeding speed curve remains stable, reduce the operating power of the fan according to the preset power value. If the real-time feeding speed curve does not change, determine that the fan is in an inefficient state.

[0028] If the fan is in an inefficient state, the operating power of the fan is reduced until the optimal operating power of the fan is reached, and the matching group with the same feeding speed in the first fan drive strategy is replaced with the fan drive command and feeding speed corresponding to the optimal operating power.

[0029] In some embodiments of this application, a method for reducing the operating power of the wind turbine to an optimal operating power is disclosed. The method for reducing the operating power of the wind turbine to an optimal operating power includes:

[0030] If the operating power of the fan is continuously reduced, and the real-time feeding speed curve shows a decrease, and the decrease value per unit time is greater than a preset value, then the operating power of the fan corresponding to the point where the real-time feeding speed curve shows a decrease is determined as the optimal operating power.

[0031] In some embodiments of this application, in order to improve the working effect of the backflush box, the backflush box is disposed on the side of the funnel section of the silo.

[0032] In some embodiments of this application, a specific configuration method for the multi-nozzle dispenser and backflush box is provided, wherein the multi-nozzle dispenser has six nozzles and the backflush box has six nozzles.

[0033] This application discloses a dynamic loosening system for intermediate silos, which has the following advantages compared to the existing method of loosening gypsum powder in silos using a vibrating motor:

[0034] 1. The application includes a blower, a multi-nozzle distributor, and a backflush box. The blower generates a fast-flowing airflow, the multi-nozzle distributor directs the airflow to the backflush box, and the backflush box directs the airflow into the silo, thereby loosening the gypsum powder in the silo. It has the advantages of low noise and minimal damage to the silo body.

[0035] 2. The multi-nozzle distributor of the application guides the airflow into different nozzles in turn, and then into different back-blowing boxes in turn, so that different positions in the hopper are guided by the airflow in turn, which has a loosening effect on the gypsum powder.

[0036] 3. The application is equipped with an analysis and processing device. Based on the feeding speed information detected by the metering reamer, the analysis and processing device adjusts the operation of the blower to loosen the gypsum powder in the silo, making energy utilization more efficient.

[0037] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a dynamic material loosening system in an intermediate silo according to an embodiment of this application;

[0039] Figure 2 This is a step diagram illustrating a method for adjusting the operating state of the fan according to an embodiment of this application.

[0040] Figure Labels

[0041] 1. Fan; 2. Multi-nozzle distributor; 3. Support nozzle; 4. Backflush box; 5. Hopper; 6. Metering cutter. Detailed Implementation

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Example:

[0045] In the gypsum production process, calcined gypsum powder needs to be added to a mixer and mixed with other additives. Before this, the amount of calcined gypsum powder added needs to be precisely controlled. Unlike the conventional gypsum powder addition process, the amount of calcined gypsum powder added needs to be precisely controlled, so an intermediate silo is used. A metering cutter is set at the bottom of the intermediate silo to detect and control the amount of gypsum powder added. However, because the gypsum powder in the intermediate silo often sloshes, it is easy to cause a shortage of material at the position of the metering cutter. In the existing technology, the method to solve the above problem is to install a vibrating motor on the wall of the intermediate silo to loosen the material. However, this method has three problems: first, it is noisy; second, it is easy to cause fatigue damage to the silo wall; and third, it can only drive the vibrating motor with standard power, resulting in high energy consumption.

[0046] The purpose of this invention is to provide a low-energy-consumption, low-noise, and low-loss intermediate silo loosening system.

[0047] Therefore, this invention discloses a dynamic material loosening system for an intermediate silo, see reference. Figure 1 It includes: a blower 1, a multi-nozzle distributor 2, several backflush boxes 4, and an analysis and processing device.

[0048] The multi-nozzle distributor 2 is connected to the blower 1, so that airflow is blown out from different nozzles 3 in turn; the back-blowing box 4 is respectively set on the side wall of the silo 5 and is respectively connected to different nozzles 3 of the multi-nozzle distributor 2, so as to guide the airflow in the multi-nozzle distributor 2 into the silo 5; the analysis and processing device adjusts the operating state of the blower 1 according to the feeding speed information detected by the metering reamer 6, so as to loosen the gypsum powder in the silo 5.

[0049] In some embodiments of this application, in order to adjust the operating state of the fan 1, a method for adjusting the operating state of the fan 1 by the analysis and processing device is disclosed. The method for adjusting the operating state of the fan 1 by the analysis and processing device includes:

[0050] The first step is to set a standard feeding speed value.

[0051] The second step is to obtain the feeding speed information detected by the metering reamer 6 and determine the real-time feeding speed value of the metering reamer 6.

[0052] Third, if the real-time feeding speed value is less than the standard feeding speed value, then drive the fan 1 to operate.

[0053] Fourth step: If the real-time feeding speed value is greater than or equal to the standard feeding speed value, then stop the operation of the blower 1.

[0054] In some embodiments of this application, another method for adjusting the operating state of the fan 1 is also disclosed, see [link to relevant documentation]. Figure 2The method by which the analysis and processing device adjusts the operating state of the fan 1 includes:

[0055] Step S100: Based on the correspondence between the feeding speed information and the fan drive status, a first fan 1 drive strategy is established.

[0056] It should be understood that, in order to avoid material shortage in the metering reamer 6, the different feeding speeds indicated by the feeding speed information correspond to different fan drive states.

[0057] Step S200: A wind turbine drive model is established for the operating capability of the wind turbine 1. The wind turbine drive model is used to drive the wind turbine 1.

[0058] It should be understood that the operating capacity of fan 1 can be understood as the power, air volume and air volume per unit power of fan 1; the fan drive model can be understood as the program that adjusts the operation of fan 1. This program can determine the drive command in the preset first fan drive strategy according to the real-time input parameters, and the fan 1 operates according to the drive command.

[0059] In step S300, the fan drive model determines the real-time feeding speed based on the feeding speed information, and determines the drive command to drive the fan 1 to operate in the first fan drive strategy.

[0060] In some embodiments of this application, the content of the first fan drive strategy is disclosed. The first fan drive strategy includes several matching groups, and the matching groups include different segments of the feeding speed range and the corresponding fan drive commands.

[0061] In some embodiments of this application, in order to enable the system to gradually optimize the first wind turbine drive strategy, the method for driving the wind turbine 1 operating state has been improved, and the method for driving the wind turbine 1 operating state further includes:

[0062] The first step is to determine the real-time feeding speed based on the feeding speed information and generate a real-time feeding speed curve.

[0063] The second step is to continue driving the fan 1 in the original driving mode, analyze the curve change characteristics of the real-time feeding speed curve, and modify the first fan driving strategy according to the curve change characteristics to obtain the second driving strategy.

[0064] It is important to understand that the curve change characteristics include rising, falling, and curvature. Different curve change characteristics correspond to the characteristics of the feeding speed change, and different feeding speed change characteristics correspond to the material shortage state of the metering reamer 6. For example, if the curve changes to a stable straight line, it corresponds to a stable feeding speed. A stable feeding speed means that the material shortage phenomenon of the metering reamer 6 is effectively controlled.

[0065] The first fan drive strategy includes drive commands for different feeding speeds. Different drive commands can cause the fan 1 to enter different operating states. The modification of the first fan drive strategy mentioned here also refers to the modification of different feeding speeds and their corresponding drive commands.

[0066] The reason for modifying the first fan drive strategy is that the first fan drive strategy may cause the operating state of the fan 1 and the real-time feeding speed to reach a dynamic balance. In this state, the real-time feeding speed reaches the speed specified in the first fan drive strategy. In fact, if the operating power of the fan 1 is further increased, the real-time feeding speed may increase. Therefore, the correspondence between the fan drive state and the feeding speed recorded by the first fan drive strategy does not enable the fan 1 and the metering cutter 6 to reach the most efficient matching state.

[0067] Third, the wind turbine drive model drives the wind turbine 1 to operate according to the second drive strategy.

[0068] In some embodiments of this application, a method for modifying the first wind turbine drive strategy is disclosed. The method for modifying the first wind turbine drive strategy includes:

[0069] The first step is to scan the real-time feeding speed curve and determine the segment of the real-time feeding speed curve that is in a stable state, obtain the current feeding speed and the drive command of the fan 1, and take the current feeding speed and the drive command of the fan 1 as the optimal matching result.

[0070] It should be understood that the aforementioned stable state refers to the fact that the variation range of the real-time feeding speed corresponding to the real-time feeding speed curve remains within a specific range.

[0071] The second step is to replace the matching groups with the same feeding speed in the first fan drive strategy with the feeding speed and the drive command of fan 1 in the newly determined optimal matching results.

[0072] In some embodiments of this application, to avoid inefficient operation of the wind turbine 1, the modification of the first wind turbine 1 driving strategy has been improved. The method for modifying the first wind turbine driving strategy further includes:

[0073] The first step is to scan the real-time feeding speed curve. If the real-time feeding speed curve remains stable, the operating power of the fan 1 is reduced according to the preset power value. If the real-time feeding speed curve does not change, the fan 1 is determined to be in an inefficient state.

[0074] The second step is to reduce the operating power of the fan 1 if the fan 1 is in an inefficient state until the optimal operating power of the fan 1 is reached, and replace the matching group with the same feeding speed in the first fan drive strategy with the drive command and feeding speed of the fan 1 corresponding to the optimal operating power.

[0075] In some embodiments of this application, a method for reducing the operating power of the fan 1 until the optimal operating power is disclosed. The method for reducing the operating power of the fan 1 until the optimal operating power includes: continuously reducing the operating power of the fan 1; if the real-time feeding speed curve shows a decrease and the decrease value per unit time is greater than a preset value, then the operating power of the fan 1 corresponding to the point where the real-time feeding speed curve shows a decrease is determined as the optimal operating power.

[0076] In some embodiments of this application, in order to improve the working effect of the backflushing box 4, the backflushing box 4 is disposed on the side of the funnel section of the silo 5.

[0077] In some embodiments of this application, a specific configuration method for the multi-nozzle dispenser 2 and the backflush box 4 is provided, wherein the multi-nozzle dispenser 2 has six nozzles 3 and the backflush box 4 has six nozzles 4.

[0078] This application discloses a dynamic loosening system for intermediate silos, which has the following advantages compared to the existing method of loosening gypsum powder in silos using a vibrating motor:

[0079] 1. The application includes a blower, a multi-nozzle distributor, and a backflush box. The blower generates a fast-flowing airflow, the multi-nozzle distributor directs the airflow to the backflush box, and the backflush box directs the airflow into the silo, thereby loosening the gypsum powder in the silo. It has the advantages of low noise and minimal damage to the silo body.

[0080] 2. The multi-nozzle distributor of the application guides the airflow into different nozzles in turn, and then into different back-blowing boxes in turn, so that different positions in the hopper are guided by the airflow in turn, which has a loosening effect on the gypsum powder.

[0081] 3. The application is equipped with an analysis and processing device. Based on the feeding speed information detected by the metering reamer, the analysis and processing device adjusts the operation of the blower to loosen the gypsum powder in the silo, making energy utilization more efficient.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An intermediate bin dynamic slack feed system characterized by, The utility model relates to a gypsum powder production system, which comprises: a fan; a multi-nozzle distributor in communication with the fan, which blows air from different branch nozzles in turn; several back blowing boxes respectively arranged on the side wall of the stock bin and respectively in communication with different branch nozzles of the multi-nozzle distributor, so as to guide the air flow in the multi-nozzle distributor into the stock bin; an analysis processing device, which adjusts the running state of the fan according to the feeding speed information detected by the metering reamer, so as to loosen the gypsum powder in the stock bin; wherein the method for adjusting the running state of the fan comprises: establishing a first fan driving strategy according to the corresponding relationship between the feeding speed information and the fan driving state; establishing a fan driving model for the running capacity of the fan, which is used to drive the fan; the fan driving model determines the real-time feeding speed according to the feeding speed information and determines the driving command for driving the fan to run in the first fan driving strategy; the first fan driving strategy comprises several matching groups, and the matching group comprises different sections of the feeding speed interval and the corresponding fan driving command; wherein the method for driving the running state of the fan further comprises: determining the real-time feeding speed according to the feeding speed information and generating a real-time feeding speed curve; continuing to drive the fan in the original driving mode, analyzing the curve change characteristics of the real-time feeding speed curve, and correcting the first fan driving strategy according to the curve change characteristics to obtain a second driving strategy; the fan driving model drives the fan to run according to the second driving strategy; the method for correcting the first fan driving strategy comprises: scanning the real-time feeding speed curve, determining the section of the real-time feeding speed curve in a stable state, obtaining the current feeding speed and the driving command of the fan, and taking the current feeding speed and the driving command of the fan as the optimal matching result; replacing the feeding speed and the driving command of the fan in the newly determined optimal matching result with the matching group of the same feeding speed in the first fan driving strategy.

2. The intermediate bin dynamic destriping system of claim 1, wherein, The method for adjusting the running state of the fan by the analysis processing device comprises: setting a feeding standard speed value; obtaining the feeding speed information detected by the metering reamer to determine the real-time feeding speed value of the metering reamer; if the real-time feeding speed value is less than the feeding standard speed value, driving the fan to run; if the real-time feeding speed value is greater than or equal to the feeding standard speed value, stopping the fan from running.

3. The intermediate bin dynamic destriping system of claim 1, wherein, The method for correcting the first fan driving strategy further comprises: scanning the real-time feeding speed curve, if the real-time feeding speed curve continuously remains in a stable state, reducing the running power of the fan according to a preset power value, if the real-time feeding speed curve does not change, judging that the fan is in an inefficient state; if the fan is in an inefficient state, reducing the running power of the fan until the optimal running power of the fan is reached, and replacing the matching group of the same feeding speed in the first fan driving strategy with the driving command and the feeding speed of the fan corresponding to the optimal running power.

4. The intermediate bin dynamic destriping system of claim 3, wherein, The method for reducing the running power of the fan until the optimal running power comprises: The running power of the fan is continuously reduced, if the real-time feeding speed curve appears to decrease, and the decrease value in unit time is greater than the preset value, the running power of the fan corresponding to the decrease node of the real-time feeding speed curve is determined as the optimal running power.

5. The intermediate bin dynamic destriping system of claim 4, wherein, The back-blowing box is arranged at the side of the hopper section of the stock bin.

6. The intermediate bin dynamic destriping system of claim 5, wherein, The number of the back-blowing boxes is six. The number of the branch nozzles of the multi-nozzle distributor is six.

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