An arch breaking silo and its control method and a gypsum board production system

Abstract

The application provides a kind of arch breaking silo and its control method and gypsum board production system.A kind of arch breaking silo, comprising: silo.Scraper, install in silo near the side of inlet, scraper includes first rotating shaft and at least one scraper arm, scraper arm first end is connected with first rotating shaft, scraper arm second end extends along the radial direction of first rotating shaft to the inner wall surface of silo, the second end face shape of scraper arm is compatible with the shape of the inner wall surface of silo.Arch breaking device, installed in silo, arch breaking device includes second rotating shaft and at least one arch breaking plough, arch breaking plough is connected with second rotating shaft.Discharge device, be provided at the discharge port of silo, and be configured to output the material in silo.Arch breaking device is located between scraper and discharge device, the feed end of arch breaking device is connected to the discharge end of scraper, and the discharge end of arch breaking device is connected to the feed end of discharge device.The arch breaking silo improves the continuity and stability of the arch breaking silo discharge.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of gypsum board production technology, specifically to an arch-breaking silo, a control method, and a gypsum board production system. Background Technology

[0002] In existing technologies, scrapers and arch-breaking devices usually operate independently, which can easily lead to material accumulation and retention under the scraper. As the operation continues, the accumulated material is prone to blockage, which can disrupt the stability of the feeding process and affect subsequent processing. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an arch-breaking silo, a control method and a gypsum board production system, which improves the continuity and stability of the material feeding from the arch-breaking silo.

[0004] This application provides an arch-breaking hopper, including a hopper, a scraper, an arch-breaking device, and a discharge device. The hopper has an inlet and an outlet. The scraper is installed inside the hopper near the inlet, and includes a first rotating shaft and at least one scraper arm. A first end of the scraper arm is connected to the first rotating shaft, and a second end of the scraper arm extends radially along the first rotating shaft towards the inner wall of the hopper, with the end face shape of the second end of the scraper arm adapted to the shape of the inner wall of the hopper. The discharge device is located at the outlet of the hopper and configured to output material from the hopper. The arch-breaking device is installed inside the hopper, and includes a second rotating shaft and at least one arch-breaking plow blade connected to the second rotating shaft. The arch-breaking device is located between the scraper and the discharge device, and the feed end of the arch-breaking device is connected to the discharge end of the scraper, while the discharge end of the arch-breaking device is connected to the feed end of the discharge device.

[0005] With this setup, the scraper first removes the material adhering to the inner wall of the hopper. The shape of the second end face of the scraper arm is adapted to the shape of the inner wall of the hopper, allowing the scraper arm to scrape material without dead angles. It removes sticky material, damp material, and fine powder adhering to the inner wall of the hopper, greatly reducing the caking and dead material layers in dead angles and ensuring the overall flowability of the material. Then, the arch-breaking device uses its arch-breaking plow blades to cut and agitate, breaking up the material arches and allowing the material to fall smoothly into the discharge device. The arch-breaking device is located between the scraper and the discharge device. The feed end and discharge end of the arch-breaking device are connected to the scraper and the discharge device, respectively. This realizes the linkage between the scraper, the arch-breaking device and the discharge device, and thus realizes the linkage between scraping, arch breaking and material output. This allows the material to be continuously guided from top to bottom, avoiding material stagnation and blockage, making the material discharge uniform and smooth, and improving the continuity and stability of the material discharge.

[0006] Based on the above technical solution, the following improvements can be made to this application.

[0007] In an exemplary embodiment, the scraper includes a plurality of scraper arms arranged sequentially along the axial direction of the first rotation axis, with adjacent scraper arms partially overlapping along the axial direction of the first rotation axis, and adjacent scraper arms being staggered along the circumferential direction of the first rotation axis.

[0008] In an exemplary embodiment, the scraping arm is a frame structure and includes a first connecting arm, a scraping support arm, and a second connecting arm connected in sequence, and both the first connecting arm and the second connecting arm are connected to the first rotating shaft; wherein, the scraping support arm is parallel to the inner wall surface of the hopper extending from the inlet to the outlet, and is used to scrape material in the hopper.

[0009] In one exemplary embodiment, the portion of the hopper near the inlet is conical, and the portion of the hopper near the outlet is also conical. The hopper is made of stainless steel, and the inner wall of the hopper is a smooth, mirror-polished surface.

[0010] In one exemplary embodiment, the arch-breaking hopper further includes a material level sensor for monitoring the material in the hopper; and / or a current detection unit for monitoring the current change of the discharge device.

[0011] This application also provides a control method for a silo breaking device as described in any of the above embodiments, comprising: obtaining the discharge speed of the discharge device of the silo breaking device; adjusting the rotation speed of the scraper and the silo breaking device of the silo breaking device according to the discharge speed of the discharge device, so that the rotation speed of the scraper and the silo breaking device can match the discharge speed of the discharge device.

[0012] In an exemplary embodiment, adjusting the rotation speed of the scraper and the arch-breaking device of the arch-breaking hopper according to the discharge speed of the discharge device includes: when the discharge speed of the discharge device increases, controlling the rotation speed of the scraper and the arch-breaking device to increase; when the discharge speed of the discharge device decreases, controlling the rotation speed of the scraper and the arch-breaking device to decrease.

[0013] In an exemplary embodiment, the scraper and the arch-breaking device operate intermittently; controlling the rotational speed of the scraper and the arch-breaking device to increase includes: shortening the intermittent duration of the scraper and the arch-breaking device within one working cycle, and / or increasing the working duration of the scraper and the arch-breaking device within one working cycle; controlling the rotational speed of the scraper and the arch-breaking device to decrease includes: increasing the intermittent duration of the scraper and the arch-breaking device within one working cycle, and / or decreasing the working duration of the scraper and the arch-breaking device within one working cycle.

[0014] In one exemplary implementation, when the discharge speed of the discharge device is within a first preset range, the arch-breaking hopper is controlled to operate in normal mode; when the discharge speed of the discharge device is greater than the value within the first preset range, the arch-breaking hopper is controlled to operate in enhanced mode; when the discharge speed of the discharge device is less than the value within the first preset range, the arch-breaking hopper is controlled to operate in low-speed mode; wherein, in the normal operation mode, the rotational speed of the scraper is less than the rotational speed of the scraper in the enhanced operation mode, but greater than the rotational speed of the scraper in the low-speed operation mode; in the normal operation mode, the rotational speed of the arch-breaking device is less than the rotational speed of the arch-breaking device in the enhanced operation mode, but greater than the rotational speed of the arch-breaking device in the low-speed operation mode.

[0015] In one exemplary implementation, the control method further includes: acquiring a current signal from the discharge device; controlling the arch-breaking hopper to operate in the enhanced mode when the magnitude of the current signal from the discharge device is greater than a first preset current value; or acquiring a material level signal within the arch-breaking hopper; controlling the arch-breaking hopper to operate in the enhanced mode when the rate of decrease of the material level signal within the hopper is lower than a first preset rate; or acquiring both the current signal from the discharge device and the material level signal within the arch-breaking hopper; controlling the arch-breaking hopper to operate in the enhanced mode when the magnitude of the current signal from the discharge device is greater than a second preset current value and the rate of decrease of the material level signal within the hopper is equal to or lower than the second preset rate; or acquiring both the current signal from the discharge device and the material level signal within the arch-breaking hopper; controlling the arch-breaking hopper to operate in the enhanced mode when the magnitude of the current signal from the discharge device is less than a third preset current value and the rate of decrease of the material level signal within the hopper is equal to or greater than the third preset rate.

[0016] This application also provides a gypsum board production system, including a rupture silo as described in any of the above embodiments, wherein the rupture silo is configured for adding a coagulant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of a silo for breaking arches provided in some embodiments of this application; Figure 2 A side view of the arch-breaking silo provided in some embodiments of this application; Figure 3 This is a partial cross-sectional top view of a silo for some embodiments of this application.

[0018] The attached diagram lists the components represented by each number as follows: 1. Material bin, 11. Inlet, 12. Outlet, 13. Dust collection port, 14. Sight glass port; 2 scraper, 21 first rotating shaft, 22 first connecting arm, 23 scraper support arm, 24 second connecting arm; 3. Arch-breaking device; 31. Second rotating shaft; 32. Arch-breaking plow blade; 4. Discharge device, 41. Discharge screw; 5. First driving device; 6. Second drive unit; 7. Third drive unit; 8 supports. Detailed Implementation

[0019] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0020] like Figures 1-3 As shown in the figure, this application provides an arch-breaking hopper, including a hopper 1, a scraper 2, an arch-breaking device 3, and a discharge device 4.

[0021] The silo 1 has an inlet 11 and an outlet 12.

[0022] The scraper 2 is installed inside the hopper 1 on the side near the feed inlet 11. The scraper 2 includes a first rotating shaft 21 and at least one scraper arm. The first end of the scraper arm is connected to the first rotating shaft 21, and the second end of the scraper arm extends radially along the first rotating shaft 21 toward the inner wall of the hopper 1. The end face shape of the second end of the scraper arm is adapted to the shape of the inner wall of the hopper 1.

[0023] The arch-breaking device 3 is installed inside the hopper 1. The arch-breaking device 3 includes a second rotating shaft 31 and at least one arch-breaking plow blade 32, which is connected to the second rotating shaft 31.

[0024] The discharge device 4 is installed at the discharge port 12 of the silo 1 and is configured to output the material in the silo 1.

[0025] Among them, the arch breaking device 3 is located between the scraper 2 and the discharge device 4, and the feed end of the arch breaking device 3 is connected to the discharge end of the scraper 2, and the discharge end of the arch breaking device 3 is connected to the feed end of the discharge device 4.

[0026] With this setup, the scraper 2 first scrapes away the material adhering to the inner wall of the hopper 1. The shape of the second end face of the scraper arm is adapted to the shape of the inner wall of the hopper 1, allowing the scraper arm to scrape away material without dead angles. This removes sticky material, damp material, and fine powder adhering to the inner wall of the hopper 1, greatly reducing the caking and dead material layer in dead angles and ensuring the overall flowability of the material. Then, the arch-breaking device 3 uses its arch-breaking plow 32 to cut and agitate, breaking up the material arch and allowing it to fall smoothly into the discharge device 4. Among them, the arch-breaking device 3 is set between the scraper 2 and the discharge device 4. The feed end and discharge end of the arch-breaking device 3 are respectively connected to the scraper 2 and the discharge device 4, realizing the linkage of the scraper 2, the arch-breaking device 3 and the discharge device 4. This realizes the linkage of scraping, arch breaking and material output, allowing the material to be continuously guided from top to bottom, avoiding material stagnation and blockage, making the material discharge uniform and smooth, and improving the continuity and stability of the material discharge.

[0027] In an exemplary embodiment, the scraper 2 includes a plurality of scraping arms arranged sequentially along the axial direction of the first rotation axis 21. Adjacent scraping arms partially overlap along the axial direction of the first rotation axis 21, and are staggered along the circumferential direction of the first rotation axis 21. This ensures that the rotational trajectories of the multiple scraping arms are complementary, resulting in a more complete scraping range on the inner wall of the hopper 1, eliminating blind spots and improving the scraping effect.

[0028] In an exemplary embodiment, the scraper arm is a frame structure and includes a first connecting arm 22, a scraper support arm 23 and a second connecting arm 24 connected in sequence, and both the first connecting arm 22 and the second connecting arm 24 are connected to the first rotating shaft 21.

[0029] The scraping arm 23 is parallel to the inner wall surface of the hopper 1 extending from the inlet 11 to the outlet 12, and is used to scrape material inside the hopper 1. This effectively increases the contact area between the scraping arm 23 and the inner wall of the hopper 1, increases the amount of material scraped at one time, and enhances the removal effect of material adhering to and forming skin on the inner wall of the hopper 1.

[0030] In one exemplary embodiment, such as Figure 1 As shown, the portion of hopper 1 near the inlet 11 is conical, and the portion of hopper 1 near the outlet 12 is also conical. Hopper 1 is made of stainless steel, and its inner wall is a smooth, mirror-polished surface. This conical shape, with its gradually narrowing inner wall from top to bottom, allows the material to naturally flow downwards under its own weight, effectively converging and guiding the material to the cylindrical structure near the outlet 12 for efficient discharge. Furthermore, the mirror-polished inner wall further reduces the probability of material adhesion and improves the smoothness of the material's descent. The stainless steel material also provides corrosion resistance, wear resistance, and easy cleaning. Of course, hopper 1 can also be made of other equivalent materials.

[0031] In one exemplary embodiment, the arch-breaking plow blades 32 are arranged sequentially and staggered along the second rotation axis 31. This eliminates blind spots in arch breaking, breaks up bridging materials from all directions, and further improves the smoothness of material discharge.

[0032] In an exemplary embodiment, the arch-breaking hopper 1 further includes a first drive device 5, a second drive device 6, a third drive device 7, and a control system. The first drive device 5 is connected to a first rotating shaft 21 to drive the scraper 2 to rotate. The second drive device 6 is connected to a second rotating shaft 31 to drive the arch-breaking device 3 to rotate. The third drive device 7 is connected to a discharge device 4 to drive the discharge screw 41 in the discharge device 4 to rotate. The first drive device 5, the second drive device 6, the third drive device 7, the aforementioned level sensor, and the aforementioned current detection unit are all electrically connected to the control system. The first drive device 5, the second drive device 6, and the third drive device 7 are all variable frequency motors, but are not limited to variable frequency motors; other equivalent alternatives may also be used. The control system may be, but is not limited to, a PLC control system.

[0033] In this way, the control system sends drive commands to the first drive device 5, the second drive device 6, and the third drive device 7 based on the signals transmitted from the level sensor and / or the current detection unit. The first drive device 5, the second drive device 6, and the third drive device 7 then drive the scraper 2, the arch-breaking device 3, and the discharge screw 41 to rotate respectively according to the drive commands from the control system. This improves the automation level of the arch-breaking hopper 1 and also improves the control accuracy of material discharge.

[0034] In one exemplary embodiment, the arch-breaking hopper also includes a level sensor for monitoring the material within the hopper 1. The level sensor then sends the detected level changes to a control device, which, based on the level changes, issues commands to control the operating modes of the scraper 2 and the arch-breaking device 3.

[0035] In one exemplary embodiment, the anti-bridging hopper further includes a current detection unit for monitoring current changes in the discharge device 4. The current detection unit is, but is not limited to, a frequency converter. Thus, the frequency converter sends the detected current data to a control device, which then issues commands based on the current data changes to control the operating modes of the scraper 2 and the anti-bridging device 3.

[0036] This application also provides a control method for an arch-breaking silo as described in any of the above embodiments, including: Obtain the discharge speed of the discharge device 4 of the arch-breaking silo; Based on the discharge speed of the discharge device 4, adjust the rotation speed of the scraper 2 and the arch-breaking device 3 in the arch-breaking hopper so that their rotation speeds match the discharge speed of the discharge device 4. Here, the rotation speeds of the scraper 2 and the arch-breaking device 3 refer to the rotation speeds of the first rotating shaft 21 and the second rotating shaft 31.

[0037] In this way, the control system determines the current material conveying volume based on the rotation speed signal of the discharge device 4, and dynamically adjusts the rotation speed of the scraper 2 and the arch-breaking device 3 in the arch-breaking hopper according to the actual conveying volume of the discharge device 4, so that the rotation speed of the scraper 2 and the arch-breaking device 3 matches the actual conveying volume of the discharge device 4. This achieves coordinated dynamic adjustment of the scraper 2, the arch-breaking device 3 and the discharge device 4, improving the accuracy of the material discharge and the continuity and smoothness of the material discharge.

[0038] In an exemplary embodiment, adjusting the rotational speed of the scraper 2 and the arch-breaking device 3 in the arch-breaking hopper according to the discharge speed of the discharge device 4 includes: When the discharge speed of the discharge device 4 increases, the rotation speed of the scraper 2 and the arch breaking device 3 is increased. When the discharge speed of the discharge device 4 decreases, the rotation speed of the scraper 2 and the arch-breaking device 3 is reduced.

[0039] In this system, the scraper 2 and the arch-breaking device 3 operate at average speeds. Thus, when the discharge speed of the discharge device 4 increases, meaning its conveying capacity increases, the control system sends commands to the first drive device 5 and the second drive device 6. These drives increase the speeds of the scraper 2 and the arch-breaking device 3, matching the increased conveying capacity of the discharge device 4. Conversely, when the discharge speed of the discharge device 4 decreases, meaning its conveying capacity decreases, the control system sends commands to the first drive device 5 and the second drive device 6, reducing the speeds of the scraper 2 and the arch-breaking device 3. This again matches the reduced conveying capacity of the discharge device 4, achieving a coordinated effect between the scraper 2, the arch-breaking device 3, and the discharge device 4.

[0040] In an exemplary embodiment, the scraper 2 and the arch-breaking device 3 operate intermittently. This avoids excessive compression of the material, significantly reduces the probability of arching, and allows the material to sink evenly and naturally along the bin wall. It also avoids excessive agitation of the material, preventing secondary agglomeration. The rhythmic coordination of the scraper 2 and the arch-breaking device 3 forms a stable material flow, eliminating material interruption.

[0041] Increasing the rotational speed of scraper 2 and arch-breaking device 3 includes: The interval between scraper 2 and arch-breaking device 3 within a working cycle is shortened, while the working time of scraper 2 and arch-breaking device 3 within a working cycle is increased. For example, the interval and working time of scraper 2 within a working cycle are adjusted from "1 minute / 10 seconds" to "45 seconds / 12 seconds". This increases the scraping frequency and prevents material accumulation on the inner wall. The interval and working time of arch-breaking device 3 within a working cycle are adjusted from "30 seconds / 5 seconds" to "20 seconds / 6 seconds". This strengthens the arch-breaking capacity of discharge port 12 and can accommodate larger conveying volumes.

[0042] Controlling the rotational speed of scraper 2 and arch-breaking device 3 involves reducing the interval between scraper 2 and arch-breaking device 3 within one working cycle, and decreasing the working time of scraper 2 and arch-breaking device 3 within one working cycle. For example, adjusting the interval and working time of scraper 2 within one working cycle from "1 minute / 10 seconds" to "1 minute 30 seconds / 8 seconds" reduces the number of times the material is repeatedly agitated, preventing excessive material compression. Adjusting the interval and working time of arch-breaking device 3 within one working cycle from "30 seconds / 5 seconds" to "40 seconds / 4 seconds" avoids excessive shearing and agglomeration of material at discharge port 12.

[0043] In an exemplary embodiment, when the discharge speed of the discharge device 4 is within a first preset range, the anti-bridging hopper is controlled to operate in normal mode. When the discharge speed of the discharge device 4 is greater than the value within the first preset range, the anti-bridging hopper is controlled to operate in enhanced mode. When the discharge speed of the discharge device 4 is less than the value within the first preset range, the anti-bridging hopper is controlled to operate in low-speed mode. Specifically, in normal mode, the rotational speed of the scraper 2 is less than the rotational speed of the scraper 2 in enhanced mode, but greater than the rotational speed of the scraper 2 in low-speed mode. Similarly, in normal mode, the rotational speed of the anti-bridging device 3 is less than the rotational speed of the anti-bridging device 3 in enhanced mode, but greater than the rotational speed of the anti-bridging device 3 in low-speed mode.

[0044] The first preset range is the discharge speed range of the arch-breaking hopper in normal operating mode. That is, in normal operating mode, the arch-breaking hopper operates at the preset speeds (default parameters) of the discharge device 4, scraper 2, and arch-breaking device 3, such as scraper 2 running for 10 seconds every minute and arch-breaking device 3 running for 5 seconds every 30 seconds. However, the discharge speed of the discharge device 4 can also be set according to the conveying capacity of the production line. Therefore, when the discharge speed of the discharge device 4 is set according to the required conveying capacity of the production line, if the discharge speed of the discharge device 4 exceeds the first preset range, the control system switches the arch-breaking hopper to an enhanced operating mode. In this enhanced operating mode, the scraper 2 and arch-breaking device 3 operate faster than in normal operating mode. This setting strengthens the working intensity of the scraper 2 and arch-breaking device 3 inside the hopper 1 to adapt to... Under high-flow discharge conditions, the system can effectively guide the material and maintain a stable and balanced discharge speed. If the discharge speed of the discharge device 4 is less than the first preset value range, the control system controls the arch-breaking hopper to switch to a low-speed operation mode. In the low-speed operation mode, the scraper 2 and the arch-breaking device 3 operate at a slower speed than in the normal operation mode. This slows down the operation speed of the scraper 2 and the arch-breaking device 3 to adapt to the low-flow discharge conditions, thereby reducing operating energy consumption and mechanical wear, effectively guiding the material and maintaining a stable and balanced discharge speed.

[0045] In one exemplary embodiment, the control method further includes: The current signal of the discharge device 4 is acquired. When the magnitude of the current signal of the discharge device 4 is greater than the first preset current value, the arch-breaking hopper is controlled to enter the enhanced operation mode. At this time, the arch-breaking hopper may be blocked. The enhanced mode is used to increase the rotation speed of the scraper 2 and the arch-breaking device 3, so as to quickly clear the blockage and enable the arch-breaking hopper to return to a stable conveying state.

[0046] In another exemplary embodiment, the control method further includes: The material level signal inside hopper 1 of the anti-bridging hopper is acquired. When the descent rate of the material level signal in hopper 1 is lower than a first preset speed, the anti-bridging hopper is controlled to enter an enhanced operation mode. At this time, the anti-bridging hopper may be in a blocked or arched state. The enhanced mode is used to increase the rotation speed of scraper 2 and anti-bridging device 3 to quickly clear the blocked or arched parts, so that the anti-bridging hopper can return to a stable conveying state.

[0047] In yet another exemplary embodiment, the control method further includes: Acquire the current signal of the discharge device 4 and the material level signal in the hopper 1 of the arch-breaking hopper; When the current signal of the discharge device 4 is greater than the second preset current value, and the descent speed of the material level signal in the hopper 1 is equal to or lower than the second preset speed, the arch-breaking hopper is controlled to be in enhanced operation mode.

[0048] At this time, the arch-breaking hopper may be blocked. The enhanced mode is used to speed up the scraper 2 and the arch-breaking device 3 to quickly clear the blockage and restore the arch-breaking hopper to a stable conveying state.

[0049] In yet another exemplary embodiment, the control method further includes: Acquire the current signal of the discharge device 4 and the material level signal in the hopper 1 of the arch-breaking hopper; When the magnitude of the current signal of the discharge device 4 is less than the third preset current value, and the descent speed of the material level signal in the hopper 1 is equal to or greater than the third preset speed, the hopper is controlled to be in enhanced operation mode.

[0050] At this time, the arch-breaking hopper may be in an arched state. The enhanced mode is used to increase the rotation speed of scraper 2 and arch-breaking device 3, so as to quickly clear the arched parts and enable the arch-breaking hopper to restore a stable conveying state.

[0051] This application also provides a gypsum board production system, including a silo for breaking arches as described in any of the above embodiments. The silo is configured for adding a setting accelerator. The silo 1 has a feed inlet 11, a dust collection inlet 13, and a sight glass 14 at its top. The dust collection inlet 13 is configured to connect to a dust collection device for dust and moisture absorption. A support frame 8 is provided at the bottom of the silo 1 to support the silo for breaking arches.

[0052] The gypsum board production system provided in this application includes the arch-breaking hopper of any of the above embodiments, and therefore has all the above-mentioned beneficial effects, which will not be repeated here.

[0053] It should be understood that the arch-breaking hopper can be used not only in gypsum board production systems, but also in other production systems for material addition.

[0054] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A type of arch-breaking silo, characterized in that, include: The hopper has an inlet and an outlet; A scraper is installed inside the hopper on the side near the feed inlet. The scraper includes a first rotating shaft and at least one scraper arm. A first end of the scraper arm is connected to the first rotating shaft, and a second end of the scraper arm extends radially along the first rotating shaft toward the inner wall of the hopper. The end face shape of the second end of the scraper arm is adapted to the shape of the inner wall of the hopper. A discharge device is installed at the discharge port of the silo and configured to output the material in the silo; and An arch-breaking device is installed inside the silo. The arch-breaking device includes a second rotating shaft and at least one arch-breaking plow blade, which is connected to the second rotating shaft. The arch-breaking device is located between the scraper and the discharge device, and the feed end of the arch-breaking device is connected to the discharge end of the scraper, while the discharge end of the arch-breaking device is connected to the feed end of the discharge device.

2. The arch-breaking silo according to claim 1, characterized in that, The scraper includes a plurality of scraper arms arranged sequentially along the axial direction of the first rotation axis. Adjacent scraper arms partially overlap along the axial direction of the first rotation axis, and adjacent scraper arms are staggered along the circumferential direction of the first rotation axis.

3. The arch-breaking silo according to claim 2, characterized in that, The scraper arm is a frame structure and includes a first connecting arm, a scraper support arm and a second connecting arm connected in sequence, and both the first connecting arm and the second connecting arm are connected to the first rotating shaft. The scraping arm is parallel to the inner wall of the hopper extending from the inlet to the outlet, and is used to scrape material within the hopper.

4. The arch-breaking silo according to claim 1, characterized in that, The portion of the hopper near the inlet is conical, and the portion of the hopper near the outlet is also conical. The hopper is made of stainless steel, and the inner wall of the hopper is a smooth, mirror-polished surface.

5. The arch-breaking silo according to any one of claims 1 to 4, characterized in that, Also includes: A level sensor is used to monitor the material in the silo; and / or A current detection unit is used to monitor the current changes of the discharge device.

6. A control method for an arch-breaking silo as described in any one of claims 1 to 5, characterized in that, include: Obtain the discharge speed of the discharge device of the arch-breaking silo; Adjust the rotation speed of the scraper and the arch-breaking device in the arch-breaking hopper according to the discharge speed of the discharge device, so that the rotation speed of the scraper and the arch-breaking device can match the discharge speed of the discharge device.

7. The control method according to claim 6, characterized in that, The step of adjusting the rotation speed of the scraper and the arch-breaking device in the arch-breaking hopper according to the discharge speed of the discharge device includes: When the discharge speed of the discharge device increases, the rotation speed of the scraper and the arch-breaking device is increased. When the discharge speed of the discharge device decreases, the rotation speed of the scraper and the arch-breaking device is reduced.

8. The control method according to claim 7, characterized in that, The scraper and the arch-breaking device operate intermittently; The method of increasing the rotational speed of the scraper and the arch-breaking device includes: shortening the interval between the scraper and the arch-breaking device in one working cycle, and / or increasing the working time of the scraper and the arch-breaking device in one working cycle; The control of reducing the rotational speed of the scraper and the arch-breaking device includes: increasing the interval duration of the scraper and the arch-breaking device within one working cycle, and / or decreasing the working time of the scraper and the arch-breaking device within one working cycle.

9. The control method according to claim 7, characterized in that, When the discharge speed of the discharge device is within the first preset range, the arch-breaking hopper is controlled to be in normal operation mode; When the discharge speed of the discharge device is greater than the value within the first preset range, the arch-breaking hopper is controlled to be in enhanced operation mode. When the discharge speed of the discharge device is less than the value within the first preset range, the arch-breaking hopper is controlled to be in a low-speed operation mode. Wherein, the rotational speed of the scraper in the normal operating mode is less than that in the enhanced operating mode, but greater than that in the low-speed operating mode; When in the normal operating mode, the rotational speed of the arch-breaking device is less than that when in the enhanced operating mode, but greater than that when in the low-speed operating mode.

10. The control method according to claim 9, characterized in that, Also includes: Obtain the current signal of the discharge device; When the magnitude of the current signal of the discharge device is greater than the first preset current value, the arch-breaking hopper is controlled to be in the enhanced operation mode; or Obtain the material level signal inside the arch-breaking silo; When the rate of decrease of the material level signal in the silo is lower than the first preset rate, the arch-breaking silo is controlled to enter the enhanced operation mode; or Acquire the current signal of the discharge device and the material level signal in the hopper of the arch-breaking hopper; When the magnitude of the current signal of the discharge device is greater than the second preset current value, and the rate of decrease of the material level signal in the hopper is equal to or lower than the second preset rate, the arch-breaking hopper is controlled to be in the enhanced operation mode; or Acquire the current signal of the discharge device and the material level signal in the hopper of the arch-breaking hopper; When the magnitude of the current signal of the discharge device is less than the third preset current value, and the descent speed of the material level signal in the hopper is equal to or greater than the third preset speed, the arch-breaking hopper is controlled to be in the enhanced operation mode.

11. A gypsum board production system, characterized in that, Includes the arch-breaking silo as described in any one of claims 1 to 5, wherein the arch-breaking silo is configured for adding a coagulant.

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