An automatic metering cement silo for cement dry powder production and its operation method

Abstract

The present invention discloses an automatically metered cement silo for cement dry powder production and its operation method, including a cement silo; a bracket for supporting the cement silo; a weighing and metering mechanism, which includes a measuring sleeve and a lining portion slidably connected within the measuring sleeve, and a plurality of weighing resistance sheets are arranged in a circumferential array between the measuring sleeve and the lining portion; a pushing unit, which pushes the measuring sleeve to fit and pushes the cement silo to slide along the bracket. The automatically metered cement silo for cement dry powder production and its operation method provided by the present invention utilize the weighing and metering mechanism arranged below the cement silo. During use, the cement silo is slid along the bracket by the pushing of the pushing unit, so that the weight of the cement silo presses on the lining portion, and then the lining portion slides along the measuring sleeve to press the plurality of weighing resistance sheets arranged in a circumferential array, thereby measuring the overall weight of the cement silo, and the measurement accuracy will not be affected by the condensation or looseness of the cement dry powder.

Description

Technical Field

[0001] The present invention relates to the technical field of powder metering, and more specifically to an automatic metering cement silo for cement dry powder production and its operation method. Background Art

[0002] A cement silo is often used as a loading device for cement dry powder. A level system is usually set on the cement silo to measure the cement dry powder stored in the cement silo.

[0003] According to the patent number CN202110587475.5, publication (announcement) date: September 17, 2021, a disclosed new type of cement silo includes a ladder. A bracket is provided at the right end of the ladder, and the right end of the ladder is fixedly connected to the left end of the bracket. A cement tank is arranged inside the bracket, and the inner wall of the bracket is fixedly connected to the outer surface of the cement tank. A sinking tank is provided at the bottom of the cement tank, and the bottom of the cement tank is fixedly connected to the top of the sinking tank. Legs are evenly arranged at the bottom of the bracket, and the bottom of the bracket is fixedly connected to the top of the legs. A motor is arranged inside the expansion port, and the inner wall of the expansion port is fixedly connected to the top of the motor. A two-way mechanism is provided at the bottom of the motor. This new type of cement silo solves the problem that during long-term use, due to the continuous accumulation of cement, the cement will form lumps or adhere to the inner wall of the cement silo, resulting in blockage of the discharge port and poor material discharge. This requires daily maintenance and regular cleaning of the cement silo during production.

[0004] In the prior art including the above-mentioned patent, the level system on the cement silo often measures based on the volume of the cement silo itself, and judges the weight of the cement dry powder by the scale of the cement dry powder in the cement silo. However, when filling new cement dry powder into the cement silo, a part of the cement dry powder will be pressed at the bottom of the silo, making the cement dry powder at the bottom more compact, while the cement dry powder at the upper part is looser, which will affect the measurement accuracy. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic metering cement silo for cement dry powder production and its operation method, aiming to solve the problem that the different gaps between cement dry powders affect the measurement accuracy.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: An automatic metering cement silo for cement dry powder production and its operation method, including:

[0007] A cement silo;

[0008] A bracket for carrying the cement silo;

[0009] A weighing and metering mechanism, which includes a measuring sleeve and a lining part slidably connected within the measuring sleeve, and a plurality of weighing resistance sheets are arranged in a circumferential array between the measuring sleeve and the lining part;

[0010] A pushing unit, which pushes the measuring sleeve to fit and pushes the cement silo to slide along the support.

[0011] Preferably, a protruding part is provided at the first end of the cement silo, and a guiding groove for guiding the protruding part is formed on the lining part.

[0012] Preferably, the weighing and metering mechanism further includes a sliding disk, and the measuring sleeve is slidably connected to the sliding disk.

[0013] Preferably, a vibration mechanism is provided on the cement silo, and the vibration mechanism includes a hollow elastic vibrating plate and a knocking rod fixedly connected inside the cement silo, and the knocking rod is driven to knock the elastic vibrating plate according to a predetermined law.

[0014] Preferably, a plurality of elastic protrusions are arranged in a circumferential array on the elastic vibrating plate.

[0015] Preferably, a plurality of resonance plates are fixedly connected in a circumferential array inside the elastic vibrating plate, and the resonance plates are located inside the elastic protrusions.

[0016] Preferably, a connecting bar is fixedly connected between the resonance plate and the elastic protrusion.

[0017] Preferably, the support includes a plurality of support rods, an upper cover is provided at the first end of the support rods, and the cement silo is slidably connected inside the upper cover.

[0018] Preferably, a sliding ring is provided on the cement silo, a sliding sleeve is provided on the support rod, and the sliding ring is slidably connected inside the sliding sleeve to limit the position of the cement silo.

[0019] An automatic metering operation method for cement dry powder production further includes the following steps:

[0020] Fill the cement dry powder into the cement silo through the filling port opened on the upper cover for storage.

[0021] Start the pushing unit to push the sliding disk to drive the lining part to fit the protruding part. At this time, the protruding part and the guiding groove are used to drive the measuring sleeve to slide along the sliding disk, and to make the center lines of the lining part and the cement silo coincide with each other, which can prevent the weight of the cement silo from spreading outward. Then, the pushing unit continues to push the cement silo. At this time, the sliding sleeve loses the limit on the cement silo, and at this time, the lining part will slide along the measuring sleeve to press the weighing resistance sheet to weigh the cement silo.

[0022] The blanking component arranged at the bottom of the cement silo is used for blanking, so that the cement dry powder continuously discharges from the cement silo. At this time, the weighing resistance sheet is also continuously weighing the cement silo to measure the weight of the discharged cement dry powder.

[0023] The cement dry powder will adhere to the inner wall of the cement silo, that is, the inner wall of the elastic vibrating plate. At this time, the knocking rod is driven to knock a plurality of elastic protrusions in sequence according to a predetermined rule, so that the elastic protrusions vibrate and transmit the vibration to the elastic vibrating plate. At this time, the cement dry powder attached to the elastic vibrating plate will be shaken off due to the vibration of the elastic vibrating plate. The vibrations of the plurality of elastic protrusions at different times can make the elastic vibrating plate vibrate continuously to improve the vibration effect. And when the elastic vibrating plate vibrates, it will be transmitted to the resonance plate through the connecting bar. At this time, the resonance plate will vibrate together with the elastic vibrating plate to enhance the amplitude of the vibration.

[0024] After the elastic vibrating plate vibrates, the pushing unit is started to separate the supporting part from the cement silo, ending the weighing and protecting the weighing resistance sheet.

[0025] In the above technical solution, an automatically metered cement silo for cement dry powder production and its operation method provided by the present invention have the following beneficial effects: By using the weighing and metering mechanism arranged below the cement silo, when in use, the cement silo is slid along the bracket by the pushing of the pushing unit, so that the weight of the cement silo presses on the supporting part, and then the supporting part slides along the measuring sleeve to press a plurality of weighing resistance sheets arranged in a circumferential array, thereby measuring the overall weight of the cement silo, and the measurement accuracy will not be affected by the condensation or looseness of the cement dry powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0027] Figure 1 It is the overall schematic diagram provided by the embodiment of the present invention;

[0028] Figure 2 It is the exploded schematic diagram of the weighing and metering mechanism provided by the embodiment of the present invention;

[0029] Figure 3 It is the exploded schematic diagram of the cement silo, bracket and upper cover provided by the embodiment of the present invention;

[0030] Figure 4 It is the internal schematic diagram of the vibration mechanism provided by the embodiment of the present invention;

[0031] Figure 5 For Figure 4 The enlarged schematic diagram at A in

[0032] Figure 6 Schematic diagram of the percussion rod explosion provided by the embodiment of the present invention;

[0033] Figure 7 Schematic cross-sectional view of the percussion rod provided by the embodiment of the present invention;

[0034] Figure 8 Schematic overall cross-sectional view provided by the embodiment of the present invention.

[0035] Explanation of reference numerals:

[0036] 1, support; 11, support rod; 12, fixed base sleeve; 121, limit groove; 2, cement silo; 21, protruding part; 22, sliding ring; 3, weighing and metering mechanism; 30, hydraulic cylinder; 301, auxiliary connecting frame; 31, sliding plate; 32, measuring sleeve; 33, weighing resistance sheet; 34, supporting part; 341, guiding groove; 4, upper cover; 5, vibration mechanism; 51, motor; 52, elastic vibrating plate; 521, elastic protrusion; 522, electrostatic adsorption part; 5221, dust scraping plate; 53, percussion rod; 531, fixed sleeve; 532, sliding column; 533, insulating sleeve; 534, rotating block; 535, composite spring; 536, sliding sleeve; 54, insulating block; 55, resonance plate; 551, connecting strip. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0038] As Figure 1-8 shown, an automatically metered cement silo for cement dry powder production and its operation method include:

[0039] Cement silo 2;

[0040] A support 1 for carrying the cement silo 2;

[0041] A weighing and metering mechanism 3, which includes a measuring sleeve 32 and a supporting part 34 slidably connected in the measuring sleeve 32, and a plurality of weighing resistance sheets 33 are arranged in a circumferential array between the measuring sleeve 32 and the supporting part 34;

[0042] A pushing unit, which pushes the measuring sleeve 32 to fit and pushes the cement silo 2 to slide along the support 1.

[0043] Specifically, the cement silo 2 is slidably installed on the support 1 and is provided with a limit block to enable the cement silo 2 to slide only towards the top of the support 1. A weighing and metering mechanism 3 is arranged at the bottom of the support 1. The weighing and metering mechanism 3 includes a measuring sleeve 32 and a supporting part 34 slidably connected within the measuring sleeve 32. A plurality of weighing resistance chips 33 (the number of weighing resistance chips 33 is not less than five) are arranged in a circumferential array between the measuring sleeve 32 and the supporting part 34. The plurality of weighing resistance chips 33 can disperse the weight of the cement silo 2, thereby preventing irreversible damage to the weighing resistance chips 33 caused by the excessive weight of the cement silo 2. A pushing unit (the pushing unit can be a hydraulic cylinder 30 or a large-weight jack) is also arranged at the bottom of the support 1, and the measuring sleeve 32 is fixed on the output end of the pushing unit; during use, cement dry powder is filled from the top of the cement silo 2, and then the pushing unit is started to make the output end extend and approach the cement silo 2. Subsequently, it approaches slowly to make the supporting part 34 fit the cement silo 2, and continuously pushes to slide the cement silo 2 along the support 1 and move towards the top of the support 1. At this time, the weight of the cement silo 2 will press on the supporting part 34, causing the supporting part 34 to slide within the measuring sleeve 32, so that the plurality of weighing resistance chips 33 are pressed to change the resistance value, thereby weighing the cement silo 2.

[0044] Furthermore, the structure for driving the supporting part 34 to approach the cement silo 2 can be the measuring sleeve 32 fixed at the bottom of the support 1. A plurality of hydraulic cylinders 30 are arranged on the support 1. A lifting ring is arranged at the output end of the hydraulic cylinder 30, and the lifting ring is fixed at the bottom of the cement silo 2. When weighing is not required, the hydraulic cylinder 30 is started to make the output end extend to push the cement silo 2 away from the supporting part 34. When weighing is required, the output end is retracted to make the cement silo 2 slide along the support 1 and approach the supporting part 34 to weigh the cement silo 2; it can also be a hoist arranged at the top of the support 1. A plurality of hoisting ropes are arranged on the hoist, and the plurality of hoisting ropes are fixed on the measuring sleeve 32. During use, the hoist is started to lift the measuring sleeve 32, making the supporting part 34 fit the bottom of the cement silo 2, and continuing to lift with the hoist to lift the cement silo 2 for weighing; or any driving structure well-known to those skilled in the art can be used.

[0045] In the above technical solution, the weighing and metering mechanism 3 arranged below the cement silo 2 is utilized. During use, the cement silo 2 is slid along the support 1 by the pushing of the pushing unit, so that the weight of the cement silo 2 presses on the supporting part 34. Then, the supporting part 34 slides along the measuring sleeve 32 to press the plurality of weighing resistance chips 33 arranged in a circumferential array, thereby measuring the overall weight of the cement silo 2, and the measurement accuracy will not be affected by the condensation or looseness of the cement dry powder.

[0046] As an embodiment further provided by the present invention, a protruding part 21 is arranged at the first end of the cement silo 2, and a guiding groove 341 for guiding the protruding part 21 is formed on the supporting part 34. Specifically, at the first end of the cement silo 2 (taking Figure 1For reference, the first end (the lower end) is provided with a protruding portion 21, and a guiding groove 341 for guiding the protruding portion 21 is formed on the supporting portion 34. When weighing the cement silo 2, the supporting portion 34 will approach the bottom of the cement silo 2 (i.e., the first end). At this time, the protruding portion 21 will be embedded in the guiding groove 341 so that the center line of the cement silo 2 coincides with the center line of the supporting portion 34. The weighing resistance chips 33 are arranged in a circular array with the center line of the supporting portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy. During use, cement dry powder is filled from the top of the cement silo 2, and then the pushing unit is activated to extend the output end and approach the cement silo 2. Subsequently, it slowly approaches to make the supporting portion 34 fit the cement silo 2, and continuously pushes to slide the cement silo 2 along the bracket 1 and move towards the top of the bracket 1. At this time, the protruding portion 21 will be embedded in the guiding groove 341 so that the center line of the cement silo 2 coincides with the center line of the supporting portion 34. The weighing resistance chips 33 are arranged in a circular array with the center line of the supporting portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy, and the supporting portion 34 slides in the measuring sleeve 32, so that the multiple weighing resistance chips 33 are pressed to change the resistance value, thereby weighing the cement silo 2.

[0047] In the above embodiments, the shapes of the protruding portion 21 and the guiding groove 341 can be a conical protrusion and a conical groove respectively, so that the conical protrusion slides and fits along the conical groove to make the center line of the cement silo 2 coincide with the center line of the supporting portion 34; they can also be an elliptical protrusion and an elliptical groove. Similarly, the elliptical protrusion slides and fits along the elliptical groove to make the center line of the cement silo 2 coincide with the center line of the supporting portion 34; or other structures well-known to those skilled in the art are also acceptable.

[0048] As the optimal embodiment provided by the present invention, the weighing and metering mechanism 3 further includes a sliding disk 31, and the measuring sleeve 32 is slidably connected to the sliding disk 31. Specifically, the weighing and metering mechanism 3 further includes a sliding disk 31, the sliding disk 31 is fixedly connected to the output end of the driving unit, and the measuring sleeve 32 is slidably connected to the sliding disk 31; during use, cement dry powder is filled from the top of the cement silo 2, and then the pushing unit is started to make the output end extend and approach the cement silo 2, and then slowly approach to make the lining part 34 fit the cement silo 2, and continuously push to slide the cement silo 2 along the bracket 1 and move towards the top of the bracket 1. At this time, the protruding part 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31 to make the center line of the cement silo 2 coincide with the center line of the lining part 34. The sliding disk 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the lining part 34 when the center line of the cement silo 2 coincides with the center line of the lining part 34. The weighing resistance chips 33 are circumferentially arrayed based on the center line of the lining part 34. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy, and the lining part 34 is made to slide in the measuring sleeve 32, so that the multiple weighing resistance chips 33 are pressed to change the resistance value to weigh the cement silo 2.

[0049] As an embodiment further provided by the present invention, a vibration mechanism 5 is provided on the cement silo 2. The vibration mechanism 5 includes a hollow elastic vibrating plate 52 fixedly connected inside the cement silo 2 and a striking rod 53. The striking rod 53 is driven to strike the elastic vibrating plate 52 according to a predetermined law. Specifically, a vibration mechanism 5 is provided on the cement silo 2. The vibration mechanism 5 includes a hollow elastic vibrating plate 52 fixedly connected inside the cement silo 2 and a striking rod 53. The elastic vibrating plate 52 replaces the inner wall of the cement silo 2 to contact the cement dry powder. A rotating shaft is provided at the center line of the cement silo 2, and the striking rod 53 is fixedly connected to the rotating shaft. During use, cement dry powder is filled from the top of the cement silo 2, and then the rotating shaft is started. At this time, the rotating shaft rotates to make the striking rod 53 strike the elastic vibrating plate 52 according to a predetermined law (the predetermined law is to strike once at intervals of a certain time), so that the elastic vibrating plate 52 generates vibration to shake off the cement dry powder attached to the elastic vibrating plate 52 to facilitate subsequent weighing. Then, the pushing unit is started to make the output end extend and approach the cement silo 2. Subsequently, it slowly approaches to make the lining portion 34 fit the cement silo 2, and continuously pushes to slide the cement silo 2 along the support 1 and move towards the top of the support 1. At this time, the protruding portion 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31 to make the center line of the cement silo 2 coincide with the center line of the lining portion 34. The sliding disk 31 can enable the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the lining portion 34 when the center line of the cement silo 2 coincides with the center line of the lining portion 34. The weighing resistance chips 33 are arranged in a circular array with the center line of the lining portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy. The lining portion 34 slides along the measuring sleeve 32, so that the multiple weighing resistance chips 33 are pressed to change the resistance value to weigh the cement silo 2.

[0050] As another embodiment further provided by the present invention, a plurality of elastic protrusions 521 are arranged in a circumferential array on the elastic vibrating plate 52. Specifically, a plurality of elastic protrusions 521 are arranged in a circumferential array on the elastic vibrating plate 52. When the knocking rod 53 rotates, it will knock on the elastic protrusions 521 to vibrate the elastic vibrating plate 52. During use, cement dry powder will be filled from the top of the cement silo 2, and then the rotating shaft will be started. At this time, the rotating shaft rotates to make the knocking rod 53 knock on the elastic protrusions 521, so that the elastic protrusions 521 transmit the vibration to the elastic vibrating plate 52 to generate vibration. Every time different elastic protrusions 521 are knocked, vibration is transmitted to the elastic vibrating plate 52 to shake off the cement dry powder adhering to the elastic vibrating plate 52 to facilitate subsequent weighing. Then, the pushing unit is started to make the output end extend and approach the cement silo 2. Subsequently, it slowly approaches so that the supporting part 34 fits the cement silo 2, and continuously pushes to slide the cement silo 2 along the bracket 1 and move towards the top of the bracket 1. At this time, the protruding part 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31 to make the center line of the cement silo 2 coincide with the center line of the supporting part 34. The sliding disk 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the supporting part 34 when the center line of the cement silo 2 coincides with the center line of the supporting part 34. The weighing resistance chips 33 are arranged in a circumferential array with the center line of the supporting part 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the plurality of weighing resistance chips 33 to improve the weighing accuracy. The supporting part 34 slides in the measuring sleeve 32, so that the plurality of weighing resistance chips 33 are pressed to change the resistance value to weigh the cement silo 2.

[0051] As yet another embodiment further provided by the present invention, a plurality of resonance plates 55 are fixedly connected in a circumferential array within the elastic vibration plate 52, and the resonance plates 55 are located within the elastic protrusions 521; a plurality of resonance plates 55 are arranged within the elastic vibration plate 52. The number of resonance plates 55 corresponds to that of the elastic protrusions 521, and they are arranged within the elastic protrusions 521, capable of resonating with the elastic protrusions 521 when the elastic protrusions 521 vibrate, thereby prolonging the vibration time, and capable of vibrating within the hollow elastic vibration plate 52 to amplify the vibration effect; during use, cement dry powder is filled from the top of the cement silo 2, and then the rotating shaft is started. At this time, the rotating shaft rotates to make the knocking rod 53 knock the elastic protrusions 521, so that the elastic protrusions 521 transmit the vibration to the elastic vibration plate 52 to generate vibration. Each time different elastic protrusions 521 are knocked, vibration is transmitted to the elastic vibration plate 52, and the resonance plates 55 can resonate with the elastic protrusions 521 when the elastic protrusions 521 vibrate, thereby prolonging the vibration time, and capable of vibrating within the hollow elastic vibration plate 52 to amplify the vibration effect, so as to shake off the cement dry powder adhering to the elastic vibration plate 52 to facilitate subsequent weighing. Then, the pushing unit is started to make the output end extend and approach the cement silo 2. Subsequently, it slowly approaches so that the supporting portion 34 fits the cement silo 2, and continuously pushes to slide the cement silo 2 along the bracket 1 and move towards the top of the bracket 1. At this time, the protruding portion 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31, so that the center line of the cement silo 2 and the center line of the supporting portion 34 coincide. The sliding disk 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the supporting portion 34 when the center line of the cement silo 2 and the center line of the supporting portion 34 coincide. The weighing resistance sheets 33 are arranged in a circumferential array with the center line of the supporting portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the plurality of weighing resistance sheets 33 to improve the weighing accuracy, so that the supporting portion 34 slides within the measuring sleeve 32, causing the plurality of weighing resistance sheets 33 to be pressed and change the resistance value to weigh the cement silo 2. The weighing resistance sheets 33 are strain gauges, and their resistance values are 350 Ω to 1000 Ω.

[0052] In the above embodiment, the shape of the resonance plate 55 can be U-shaped tuning fork-shaped, and the length of the resonance plate 55 is the same as that of the cement silo 2, so that when the resonance plate 55 vibrates, the longer U-shaped tuning fork can resonate out sound waves with a lower pitch and a longer wavelength to shake off the cement dry powder; it can also be a vertical plate formed by linearly arranged spiral elastic steel wires arranged in a linear array. One end of the vertical plate is fixed on the elastic vibration plate 52, capable of playing a resonance effect to amplify the sound wave during vibration; or any resonance structure well-known to those skilled in the art can be used.

[0053] As the optimal embodiment provided by the present invention, a connecting bar 551 is fixedly connected between the resonance plate 55 and the elastic protrusion 521. Specifically, a connecting bar 551 is fixedly connected between the resonance plate 55 and the elastic protrusion 521. When the elastic protrusion 521 receives a knocking vibration, the vibration is transmitted to the resonance plate 55 through the elastic protrusion 521, and at the same time, it can prevent damage caused by friction between the resonance plate 55 and the elastic protrusion 521 due to excessive vibration amplitude. During use, cement dry powder is filled from the top of the cement silo 2, and then the rotating shaft is started. At this time, the rotating shaft rotates to make the knocking rod 53 knock the elastic protrusion 521. When the elastic protrusion 521 receives a knocking vibration, the vibration is transmitted to the resonance plate 55 through the elastic protrusion 521, and at the same time, it can prevent damage caused by friction between the resonance plate 55 and the elastic protrusion 521 due to excessive vibration amplitude. Each time a different elastic protrusion 521 is knocked, vibration is transmitted to the elastic vibration plate 52, and the resonance plate 55 can resonate with the elastic protrusion 521 when the elastic protrusion 521 vibrates, so as to extend the vibration time, and can vibrate inside the hollow elastic vibration plate 52 to amplify the vibration effect, so that the cement dry powder attached to the elastic vibration plate 52 is shaken off to facilitate subsequent weighing. Then, the pushing unit is started to make the output end extend and approach the cement silo 2, and then slowly approach to make the supporting part 34 fit the cement silo 2, and continuously push to slide the cement silo 2 along the support 1 and move towards the top of the support 1. At this time, the protruding part 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31, so that the center line of the cement silo 2 coincides with the center line of the supporting part 34. The sliding disk 31 can enable the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the supporting part 34 when the center line of the cement silo 2 coincides with the center line of the supporting part 34. The weighing resistance sheets 33 are circumferentially arranged with the center line of the supporting part 34 as the reference, so the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance sheets 33 to improve the weighing accuracy, and the supporting part 34 is made to slide inside the measuring sleeve 32, so that the multiple weighing resistance sheets 33 are pressed to change the resistance value to weigh the cement silo 2.

[0054] As an embodiment further provided by the present invention, the support 1 includes a plurality of support rods 11, and an upper cover 4 is provided at the first end of the support rod 11. The cement silo 2 is slidably connected inside the upper cover 4. Specifically, the support 1 includes a plurality of support rods 11, and at the first end of the support rod 11 (taking Figure 3For reference, with the first end being the upper end and the second end being the lower end), an upper cover 4 is provided. The cement silo 2 is slidably connected within the upper cover 4, and a sealing rubber ring is provided between the two to prevent the leakage of the internal dry cement powder. At the second end of the support rod 11, an auxiliary connecting frame 301 is provided, and a hydraulic cylinder (i.e., the driving unit) is fixedly connected to the auxiliary connecting frame 301. The auxiliary connecting frame 301 can provide a certain supporting force. A motor 51 is fixedly connected to the upper cover 4, and the output end of the motor 51 is fixedly connected to a rotating shaft. A filling port for filling is opened on the upper cover 4. During use, dry cement powder is filled into the cement silo 2 through the filling port on the upper cover 4, and then the motor 51 is started to rotate the rotating shaft so that the knocking rod 53 knocks the elastic protrusion 521. When the elastic protrusion 521 receives the knocking vibration, the vibration is transmitted to the resonance plate 55 through the elastic protrusion 521. At the same time, it can prevent damage caused by friction between the resonance plate 55 and the elastic protrusion 521 due to excessive vibration amplitude. Each time a different elastic protrusion 521 is knocked, vibration is transmitted to the elastic vibration plate 52, and the resonance plate 55 can resonate with the elastic protrusion 521 when the elastic protrusion 521 vibrates, thereby prolonging the vibration time and being able to vibrate within the hollow elastic vibration plate 52 to amplify the vibration effect, so that the dry cement powder attached to the elastic vibration plate 52 is shaken off to facilitate subsequent weighing. Then, the pushing unit is started to extend the output end and move closer to the cement silo 2. Subsequently, it slowly approaches so that the lining portion 34 fits against the cement silo 2, and continuously pushes to slide the cement silo 2 along the support rod 11 and move towards the first end of the support rod 11. At this time, the protruding portion 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31 so that the center line of the cement silo 2 coincides with the center line of the lining portion 34. The sliding disk 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the lining portion 34 when the center line of the cement silo 2 coincides with the center line of the lining portion 34. The weighing resistance chips 33 are arranged in a circular array with the center line of the lining portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy, and the lining portion 34 is made to slide within the measuring sleeve 32, causing the multiple weighing resistance chips 33 to be pressed and change their resistance values to weigh the cement silo 2.

[0055] As the optimal embodiment provided by the present invention, a sliding ring 22 is provided on the cement silo 2, and a fixed base sleeve 12 is provided on the support rod 11. The sliding ring 22 is slidably connected within the fixed base sleeve 12 to limit the cement silo 2. Specifically, the sliding ring 22 is provided on the cement silo 2, the fixed base sleeve 12 is provided on the support rod 11, and a limiting groove 121 is formed in the fixed base sleeve 12. The sliding ring 22 is slidably connected within the limiting groove 121. During use, cement dry powder is filled into the cement silo 2 through the filling port on the upper cover 4, and then the motor 51 is started to rotate the rotating shaft so that the knocking rod 53 knocks the elastic protrusion 521. When the elastic protrusion 521 receives the knocking vibration, the vibration is transmitted to the resonance plate 55 through the elastic protrusion 521. At the same time, it can prevent damage caused by friction between the resonance plate 55 and the elastic protrusion 521 due to excessive vibration amplitude. Each time a different elastic protrusion 521 is knocked, vibration is transmitted to the elastic vibration plate 52. The resonance plate 55 can resonate with the elastic protrusion 521 when the elastic protrusion 521 vibrates, thereby prolonging the vibration time, and can vibrate within the hollow elastic vibration plate 52 to amplify the vibration effect, so that the cement dry powder attached to the elastic vibration plate 52 is shaken off to facilitate subsequent weighing. Then, the pushing unit is started to extend the output end and move closer to the cement silo 2. Subsequently, it slowly approaches so that the supporting portion 34 fits against the cement silo 2, and continuously pushes to slide the cement silo 2 along the limiting groove 121 and move towards the first end of the support rod 11. At this time, the protruding portion 21 will be embedded in the guiding groove 341, and at the same time, the measuring sleeve 32 will slide along the sliding disk 31 to align the center line of the cement silo 2 with the center line of the supporting portion 34. The sliding disk 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the supporting portion 34 when the center line of the cement silo 2 coincides with the center line of the supporting portion 34. The weighing resistance chips 33 are circumferentially arranged with the center line of the supporting portion 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy. The supporting portion 34 slides within the measuring sleeve 32, causing the multiple weighing resistance chips 33 to be pressed and change their resistance values, thereby weighing the cement silo 2.

[0056] As the optimal embodiment provided by the present invention, an electrostatic adsorption part 522 is provided on the elastic vibration plate 52. Scraping plates 5221 are provided on both the first surface (the first surface is the upper surface and the second surface is the lower surface) and the second surface of the electrostatic adsorption part 522. An insulating block 54 is provided on the electrostatic adsorption part 522. The knocking rod 53 includes a fixed sleeve 531 sleeved on a rotating shaft. A sliding column 532 is provided on the fixed sleeve 531. A sliding sleeve 536 is slidably connected to the sliding column 532. An insulating sleeve 533 is provided on the sliding sleeve 536. A rotating block 534 is rotatably connected inside the sliding column 532. A composite spring 535 is fixedly connected between the rotating block 534 and the insulating sleeve 533. The composite spring 535 is formed by connecting two springs with different diameters. The diameter of one spring is 30% larger than that of the other spring. The insulating sleeve 533 is made of rubber, has strong insulating ability and large friction force; when in use, start the motor 51 to start rotating at different speeds respectively:

[0057] Low-speed mode, at this time the centrifugal force is small, so that the insulating sleeve 533 rotates in the cement silo 2 and will not contact the insulating block 54 or the elastic vibration plate 52. And in the low-speed mode, when the insulating sleeve 533 carries static electricity, it will adsorb the floating cement powder in the cement silo 2;

[0058] Medium-speed mode, at this time the rotation of the rotating shaft drives the fixed sleeve 531 to rotate, which will generate a certain centrifugal force. At this time, the spring with a smaller diameter in the composite spring 535 loses the pulling force, so that the sliding sleeve 536 slides along the sliding column 532, so that the insulating sleeve 533 contacts the insulating block 54. With the rotation of the rotating shaft, the insulating sleeve 533 will continuously rub against the insulating block 54 to generate static electricity;

[0059] High-speed mode, at this time the motor 51 starts the rotating shaft to rotate at a high speed. When rotating, the composite spring 535 completely loses the pulling ability, so that the sliding sleeve 536 slides along the sliding column 532 and the insulating sleeve 533 slides into the electrostatic adsorption part 522. And the electrostatic adsorption part 522 is made of metal and has the ability to conduct electricity, which can eliminate the static electricity on the insulating sleeve 533. At the same time, with the rotation of the rotating shaft, the insulating sleeve 533 will rotate and contact and scrape the scraping plate 5221 so that the cement powder adsorbed on the insulating sleeve 533 under the condition of being charged with static electricity is scraped off.

[0060] An automatic metering operation method for cement powder production further includes the following steps:

[0061] 1), Fill the cement powder into the cement silo 2 through the filling port opened on the upper cover 4 for storage.

[0062] 2), Start the pushing unit to extend the output end and move closer to the cement silo 2. Then slowly move closer so that the lining part 34 fits against the cement silo 2, and continuously push to slide the cement silo 2 along the limit groove 121 and move towards the first end of the support rod 11. At this time, the protruding part 21 will be embedded in the guiding groove 341. At the same time, the measuring sleeve 32 will slide along the sliding disc 31 to align the center line of the cement silo 2 with the center line of the lining part 34. The sliding disc 31 enables the measuring sleeve 32 to have a horizontal degree of freedom and will not damage the lining part 34 when the center lines of the cement silo 2 and the lining part 34 coincide. The weighing resistance chips 33 are arranged in a circular array with the center line of the lining part 34 as the reference. Therefore, the weight of the cement silo 2 can be evenly pressed on the multiple weighing resistance chips 33 to improve the weighing accuracy. As the pushing unit continuously pushes, the fixed base sleeve 12 loses its limit on the cement silo 2, causing the lining part 34 to slide inside the measuring sleeve 32, causing the multiple weighing resistance chips 33 to be pressed and change their resistance values to weigh the cement silo 2. During filling, the cement dry powder will splash and float in the cement silo 2. Then start the motor 51 to the medium-speed mode. At this time, the rotating shaft rotates to drive the fixed sleeve 531 to rotate, generating a certain centrifugal force. At this time, the smaller-diameter section of the spring in the composite spring 535 loses the pulling force, causing the sliding sleeve 536 to slide along the sliding column 532, enabling the insulating sleeve 533 to contact the insulating block 54. As the rotating shaft rotates, the insulating sleeve 533 will continuously rub against the insulating block 54 to generate static electricity, which can adsorb the floating cement dry powder. When the motor 51 is switched to the low-speed mode, the centrifugal force is smaller at this time, causing the insulating sleeve 533 to rotate inside the cement silo 2 and not contact the insulating block 54 or the elastic vibrating plate 52. And in the low-speed mode, when the insulating sleeve 533 carries static electricity, it will adsorb the floating cement dry powder in the cement silo 2.

[0063] 3), Then discharge the material through the discharging component arranged at the bottom of the cement silo 2 to continuously discharge the cement dry powder from the cement silo 2. At this time, the weighing resistance chips 33 are also continuously weighing the cement silo 2 to measure the weight of the discharged cement dry powder, and the floating dust will be adsorbed to improve the measurement accuracy of the cement dry powder during discharging.

[0064] 4) After the blanking is completed, a part of the cement dry powder will adhere to the inner wall of the cement silo 2, which is the inner wall of the elastic vibrating plate 52. At this time, the motor 51 is started in the high-speed mode. At this time, the motor 51 starts the rotating shaft to the high-speed rotation mode. When rotating, the composite spring 535 completely loses the pulling ability, so that the sliding sleeve 536 slides along the sliding column 532, and the insulating sleeve 533 slides into the electrostatic adsorption part 522. The electrostatic adsorption part 522 is made of metal and has the ability to conduct electricity, which can eliminate the static electricity on the insulating sleeve 533. At the same time, as the rotating shaft rotates, the insulating sleeve 533 will rotate and contact and scrape the dust scraping plate 5221 so that the cement dry powder adsorbed on the insulating sleeve 533 under the condition of being charged with static electricity is scraped off and falls into the cement silo 2. At the same time, the insulating sleeve 533 knocks on the elastic protrusion 521. When the elastic protrusion 521 receives the knocking vibration, the vibration is transmitted to the resonance plate 55 through the elastic protrusion 521. At the same time, it can prevent the damage caused by the friction between the resonance plate 55 and the elastic protrusion 521 due to excessive vibration amplitude. Every time different elastic protrusions 521 are knocked, vibration is transmitted to the elastic vibrating plate 52. The resonance plate 55 can resonate with the elastic protrusion 521 when the elastic protrusion 521 vibrates, so as to extend the vibration time, and can vibrate in the hollow elastic vibrating plate 52 to amplify the vibration effect, so as to vibrate off the cement dry powder attached to the elastic vibrating plate 52 to facilitate subsequent weighing.

[0065] 5) After the elastic vibrating plate 52 vibrates, the pushing unit is started to separate the supporting part 34 from the cement silo 2, ending the weighing and protecting the weighing resistance piece 33.

[0066] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatically metered cement silo for cement dry powder production, characterized in that, Comprising: A cement silo (2); A bracket (1) for carrying the cement silo (2); A weighing and metering mechanism (3), which includes a measuring sleeve (32) and a lining part (34) slidably connected within the measuring sleeve (32), and a plurality of weighing resistance sheets (33) are arranged in a circumferential array between the measuring sleeve (32) and the lining part (34); A pushing unit, which pushes the measuring sleeve (32) to fit and push the cement silo (2) to slide along the bracket (1); A vibration mechanism (5) is provided on the cement silo (2), and the vibration mechanism (5) includes a hollow elastic vibrating plate (52) and a knocking rod (53) fixedly connected within the cement silo (2), and the knocking rod (53) is driven to knock the elastic vibrating plate (52) according to a predetermined law; An electrostatic adsorption part (522) is provided on the elastic vibrating plate (52), dust scraping plates (5221) are provided on both sides of the electrostatic adsorption part (522), an insulating block (54) is provided on the electrostatic adsorption part (522), the knocking rod (53) includes a fixed sleeve (531) sleeved on a rotating shaft, a sliding column (532) is provided on the fixed sleeve (531), a sliding sleeve (536) is slidably connected to the sliding column (532), an insulating sleeve (533) is provided on the sliding sleeve (536), a rotating block (534) is rotatably connected within the sliding column (532), and a composite spring (535) is fixedly connected between the rotating block (534) and the insulating sleeve (533); The composite spring (535) is formed by connecting two springs with different diameters, and the diameter of one spring is 30% larger than that of the other spring, and the insulating sleeve (533) is made of rubber; It further includes a motor (51) for driving the knocking rod (53) to rotate, and wherein, the motor (51) rotates at different speeds.

2. The cement silo for automatic metering in the production of dry cement powder according to claim 1, characterized in that, A protruding part (21) is provided at the first end of the cement silo (2), and a guiding groove (341) for guiding the protruding part (21) is provided on the lining part (34).

3. The cement silo for automatic metering in the production of dry cement powder according to claim 2, wherein, The weighing and metering mechanism (3) further includes a sliding disc (31), and the measuring sleeve (32) is slidably connected to the sliding disc (31).

4. An automatic metering cement silo for cement dry powder production according to claim 3, characterized in that, A plurality of elastic protrusions (521) are arranged in a circumferential array on the elastic vibrating plate (52).

5. An automatic metering cement silo for cement dry powder production according to claim 4, characterized in that, A plurality of resonance plates (55) are fixedly connected in a circumferential array within the elastic vibrating plate (52), and the resonance plates (55) are located within the elastic protrusions (521).

6. The automatic metering cement silo for cement dry powder production according to claim 5, characterized in that, A connecting strip (551) is fixedly connected between the resonance plate (55) and the elastic protrusion (521).

7. An automatic metering cement silo for cement dry powder production according to claim 6, characterized in that, The bracket (1) includes a plurality of support rods (11), an upper cover (4) is provided at the first end of the support rods (11), and the cement silo (2) is slidably connected within the upper cover (4).

8. An automatic metering cement silo for cement dry powder production according to claim 7, characterized in that, A sliding ring (22) is provided on the cement silo (2), a fixed base sleeve (12) is provided on the support rod (11), and the sliding ring (22) is slidably connected within the fixed base sleeve (12) to limit the cement silo (2).

9. An automatic metering operation method for cement dry powder production, including the cement silo for automatic metering in cement dry powder production described in claim 8 above, characterized in that, It further includes the following steps: 1), Fill the cement dry powder into the cement silo (2) through the filling port provided on the upper cover (4) for storage; 2), Start the pushing unit to push the sliding disk (31) with the lining part (34) to fit against the protruding part (21). At this time, the protruding part (21) and the guiding groove (341) are used to drive the measuring sleeve (32) to slide along the sliding disk (31), and align the center lines of the guiding lining part (34) and the cement silo (2), which can prevent the weight of the cement silo (2) from spreading outward. Then, the pushing unit continues to push the cement silo (2). At this time, the fixed base sleeve (12) loses its limit on the cement silo (2). At this time, the lining part (34) will slide along the measuring sleeve (32) to press the weighing resistance sheet (33) to weigh the cement silo (2); 3), Discharge materials through the discharging component arranged at the bottom of the cement silo (2) to continuously discharge the cement dry powder from the cement silo (2). At this time, the weighing resistance sheet (33) is also continuously weighing the cement silo (2) to measure the weight of the discharged cement dry powder; 4), The cement dry powder will adhere to the inner wall of the cement silo (2), that is, the inner wall of the elastic vibration plate (52). At this time, drive the knocking rod (53) to sequentially knock a plurality of elastic protrusions (521) according to a predetermined rule, so that the elastic protrusions (521) vibrate and transmit the vibration to the elastic vibration plate (52). At this time, the cement dry powder adhering to the elastic vibration plate (52) will be shaken off due to the vibration of the elastic vibration plate (52). The vibrations of the plurality of elastic protrusions (521) at different times can make the elastic vibration plate (52) vibrate continuously to improve the vibration effect. And when the elastic vibration plate (52) vibrates, it will be transmitted to the resonance plate (55) through the connecting bar (551). At this time, the resonance of the resonance plate (55) will vibrate together with the elastic vibration plate (52) to enhance the amplitude of the vibration; 5), Start the pushing unit after the elastic vibration plate (52) vibrates to separate the lining part (34) from the cement silo (2), end the weighing and protect the weighing resistance sheet (33).

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