阅读说明：本技术 一种鼓形破拱器、料仓及破拱方法 (Drum-shaped arch breaking device, storage bin and arch breaking method ) 是由 李勇 拓云飞 梅雪峰 薄如 梁跃武 周敏 马壮 范春浩 李伟 路兴隆 靳树利 于 2021-01-07 设计创作，主要内容包括：本发明实施例公开了一种鼓形破拱器、料仓及破拱方法,包括由鼓身和位于鼓身两端的鼓皮构成的鼓形振动机构,以及用于提供鼓形振动机构振动源的自适应共振系统。本发明使鼓形振动体达到共振状态,进而迫使鼓形振动体附近的物料发生振动,振动通过接触传导或声波传导到料仓内的物料上,使物料松散后自然下落,避免形成结拱现象或破坏已经形成的结拱状况,达到物料能从仓下出料口顺利流出的目的。(The embodiment of the invention discloses a drum-shaped arch breaking device, a storage bin and an arch breaking method. The invention leads the drum-shaped vibrating body to reach the resonance state, further forces the material near the drum-shaped vibrating body to vibrate, and the vibration is conducted to the material in the storage bin through contact conduction or sound wave, so that the material naturally falls down after being loosened, the arch formation phenomenon is avoided or the formed arch formation condition is damaged, and the aim that the material can smoothly flow out from the lower discharge port of the storage bin is achieved.)

1. The drum-shaped arch breaker is characterized by comprising a drum-shaped vibration body (1) and an adaptive vibration system which is arranged in the drum-shaped vibration body (1) and used for providing a vibration source for the drum-shaped vibration body (1), wherein the drum-shaped vibration body (1) achieves a resonance state under the combined action of the elastic deformation capacity of the drum-shaped vibration body and the vibration source.

2. The drum arch breaker according to claim 1, wherein the drum-shaped vibration body (1) comprises a drum body (3) and a drum head (2) arranged at both ends of the drum body (3), the drum head (2) being elastically deformed relative to the drum body (3) by a vibration source provided by an adaptive vibration system, the drum head (2) being brought into a resonance state by the vibration source.

3. The drum-shaped arch breaker according to claim 1, wherein said adaptive vibration system comprises a power supply, a vibration controller (6), and a vibration exciter (4) and a vibration pickup (5) disposed on said drum head (2), said power supply supplies power to said vibration controller (6), said vibration controller (6) connects said vibration exciter (4) and said vibration pickup (5), said vibration controller (6) analyzes and processes the vibration frequency and vibration amplitude of said drum head (2) collected by said vibration pickup (5), and controls and adjusts the vibration amplitude and vibration frequency of said vibration exciter (2) according to the processing result.

4. The drum arch breaker according to claim 2, wherein said vibration controller (6) comprises a signal amplification module, an analog-to-digital conversion module, a data operation module, a data storage module and a power amplification module;

the signal amplification module is used for amplifying the vibration frequency of the drum-shaped vibration body (1) collected by the vibration pickup (5), transmitting the amplified signal to the analog-to-digital conversion module, converting the amplified signal into a digital signal by the analog-to-digital conversion module, carrying out operation analysis on the digital signal by the data operation module to obtain the frequency of the resonance state of the drum-shaped vibration body (1), thereby obtaining the state of a material body in the bin, meanwhile, the data storage module stores the frequency of the resonance state obtained by analysis, and the function amplification module receives the analysis result to generate a driving signal for controlling the vibration exciter (2), so that the feedback control of the resonance state of the drum-shaped vibration body (1) is realized.

5. The drum-shaped arch breaker according to claim 4, wherein the vibration exciter (4) and the vibration pickup (5) are explosion-proof or intrinsically safe elements, an explosion-proof isolation grid is arranged in the vibration controller (6), and explosion-proof flame-proof cables are adopted as cables electrically connected between the vibration exciter (4) and the vibration pickup (5) and the vibration controller (6).

6. The drum-shaped arch breaker according to claim 2, wherein the drum head (3) and the drumhead (2) are connected by welding, bonding, riveting or bolts, the diameter of the drum head ranges from 150mm to 2000mm, the height of the drum head ranges from 50mm to 500mm, and the thickness of the drumhead ranges from 2mm to 30 mm.

7. A storage bin adopting the drum-shaped arch breaker as claimed in any one of claims 1 to 5, characterized by comprising a storage bin body (8) and a discharge port (11) positioned at the bottom of the storage bin, wherein the drum-shaped vibration mechanism (1) is installed at the bottom in the storage bin body (8) for blanking through a support (10), the support (10) is positioned at the top of the discharge port (11), and a protective cover (9) is arranged outside the drum-shaped vibration mechanism (1).

8. The silo for drum breakers according to claim 7, characterized in that the exciter (4) and the vibration pickup (5) are mounted on the inner wall of the drum head (2) or on the outer wall of the drum head (2).

9. A method of breaking an arch in a drum breaker according to any of claims 1 to 8, comprising the steps of:

step 100, mounting a drum-shaped arch breaker above an outlet end of a storage bin;

step 200, starting a power supply to enable a drum-shaped arch breaking device to work when a storage bin discharges materials;

step 300, enabling a vibration exciter to provide a vibration source for a drum-shaped vibration body by the controller at a preset initial frequency, enabling the drum-shaped vibration body to reach a resonance state under the combined action of the elastic deformation capacity of the drum-shaped vibration body and the vibration source, and breaking an arch of bulk materials in a storage bin, and acquiring the drum skin vibration frequency and the vibration amplitude of the drum-shaped arch breaker in real time or at preset fixed time intervals by the vibration pickup and feeding the drum skin vibration frequency and the vibration amplitude back to the vibration controller;

step 400, when the vibration controller judges that the vibration frequency and the vibration amplitude of the drum skin are within the preset threshold range, the vibration controller only provides a power supply and does not adjust the vibration frequency and the vibration amplitude of the vibration exciter;

step 500, when the vibration controller judges that any one of the vibration frequency and the vibration amplitude of the drum head is larger than a preset upper limit value, the vibration controller adjusts and reduces the vibration frequency or the vibration amplitude of the vibration exciter; and when the controller judges that any one of the vibration frequency and the vibration amplitude of the drum head is smaller than the preset lower limit value, the vibration controller raises the vibration frequency or the vibration amplitude of the vibration exciter.

Technical Field

The embodiment of the invention relates to the technical field of blanking of a storage bin for powdery materials, in particular to a drum-shaped arch breaking device, a storage bin and an arch breaking method.

Background

In powder production, the phenomena of difficult powder blanking, blockage of a bin of a vacuum feeding machine, blockage of a bin of a small bag feeding station, powder bridging and caking and the like in the transportation and flowing process are frequently encountered, in the prior art, the size of a discharge opening is increased, the top angle of a hopper is reduced or an asymmetric hopper is adopted for improvement, or the friction force of the bin wall is reduced by an exhaust measure, and high-pressure air is injected from the lower part of the bin to fluidize and break the arch of the material;

in the prior art, an air cannon is adopted for arch breaking, but the effect is not ideal, and two main reasons exist, namely, the air cannon only can work intermittently, so that continuous and stable material blanking cannot be guaranteed; secondly, the air cannon can bond the extruded material more firmly, and plays a negative role in stabilizing the blanking.

Disclosure of Invention

Therefore, the embodiment of the invention provides a drum-shaped arch breaker, which solves the problems that stable blanking cannot be guaranteed and materials passing through the air cannon are easy to compact when the existing air cannon is broken in an arch mode.

In order to achieve the above object, an embodiment of the present invention provides the following:

a drum-shaped arch breaker comprises a drum-shaped vibration body and an adaptive vibration system which is arranged in the drum-shaped vibration body and used for providing a vibration source for the drum-shaped vibration body, wherein the drum-shaped vibration body reaches a resonance state under the combined action of the elastic deformation capacity of the drum-shaped vibration body and the vibration source.

In a preferred embodiment of the present invention, the drum-shaped vibration body includes a drum body and a drum head disposed at both ends of the drum body, the drum head is elastically deformed relative to the drum body by a vibration source provided by an adaptive vibration system, and the drum head reaches a resonance state by the vibration source.

As a preferable scheme of the present invention, the adaptive vibration system includes a power supply, a vibration controller, and a vibration exciter and a vibration pickup which are disposed on the drum head, the power supply supplies power to the vibration controller, the vibration controller is connected to the vibration exciter and the vibration pickup, and the vibration controller analyzes and processes the vibration frequency and the vibration amplitude of the drum head collected by the vibration pickup, and controls and adjusts the vibration amplitude and the vibration frequency of the vibration exciter according to a processing result.

As a preferred scheme of the present invention, the vibration controller includes a signal amplification module, an analog-to-digital conversion module, a data operation module, a data storage module, and a power amplification module;

the signal amplification module is used for amplifying the vibration frequency of the drum-shaped vibration body collected by the vibration pickup, transmitting the amplified signal to the analog-to-digital conversion module, converting the amplified signal into a digital signal by the analog-to-digital conversion module, carrying out operation analysis on the digital signal by the data operation module to obtain the frequency of the resonance state of the drum-shaped vibration body, thereby obtaining the state of a material body in the bin, simultaneously storing the frequency of the resonance state obtained by analysis by the data storage module, and generating a driving signal for controlling the vibration exciter by the function amplification module after receiving the analysis result to realize feedback control on the resonance state of the drum-shaped vibration body.

As a preferred scheme of the invention, the vibration exciter and the vibration pickup adopt explosion-proof or intrinsically safe elements, an explosion-proof isolation grid is arranged in the vibration controller, and the cables electrically connected between the vibration exciter and the vibration pickup and the vibration controller adopt explosion-proof flame-retardant cables.

In a preferred embodiment of the invention, the drum head (3) and the drumhead (2) are connected by welding, bonding, riveting or bolts, the diameter range of the drum head is 150 mm-2000 mm, the height range of the drum head is 50 mm-500 mm, and the thickness of the drum head is 2 mm-30 mm.

The invention provides a storage bin of a drum-shaped arch breaker, which comprises a storage bin body and a discharge hole positioned at the bottom of the storage bin, wherein a drum-shaped vibration mechanism is arranged at the bottom in the storage bin body for blanking through a support, the support is positioned at the top of the discharge hole, and a protective cover is arranged outside the drum-shaped vibration mechanism.

In a preferred embodiment of the present invention, the vibration exciter and the vibration pickup are mounted on an inner wall of the drum head or an outer wall of the drum head.

The invention provides an arch breaking method of a drum-shaped arch breaker, which comprises the following steps:

step 100, mounting a drum-shaped arch breaker above an outlet end of a storage bin;

step 200, starting a power supply to enable a drum-shaped arch breaking device to work when a storage bin discharges materials;

step 300, enabling a vibration exciter to provide a vibration source for a drum-shaped vibration body by the controller at a preset initial frequency, enabling the drum-shaped vibration body to reach a resonance state under the combined action of the elastic deformation capacity of the drum-shaped vibration body and the vibration source, and breaking an arch of bulk materials in a storage bin, and acquiring the drum skin vibration frequency and the vibration amplitude of the drum-shaped arch breaker in real time or at preset fixed time intervals by the vibration pickup and feeding the drum skin vibration frequency and the vibration amplitude back to the vibration controller;

step 400, when the vibration controller judges that the vibration frequency and the vibration amplitude of the drum skin are within the preset threshold range, the vibration controller only provides a power supply and does not adjust the vibration frequency and the vibration amplitude of the vibration exciter;

step 500, when the vibration controller judges that any one of the vibration frequency and the vibration amplitude of the drum head is larger than a preset upper limit value, the vibration controller adjusts and reduces the vibration frequency or the vibration amplitude of the vibration exciter; and when the controller judges that any one of the vibration frequency and the vibration amplitude of the drum head is smaller than the preset lower limit value, the vibration controller raises the vibration frequency or the vibration amplitude of the vibration exciter.

The embodiment of the invention has the following advantages:

the invention leads the drum-shaped vibrating body to reach the resonance state, further forces the material near the drum-shaped vibrating body to vibrate, and the vibration is conducted to the material in the storage bin through contact conduction or sound wave, so that the material naturally falls down after being loosened, the arch formation phenomenon is avoided or the formed arch formation condition is damaged, and the aim that the material can smoothly flow out from the lower discharge port of the storage bin is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the installation position of the drum-shaped vibration body in the storage bin in the embodiment of the invention.

In the figure:

1-a drum-shaped vibrating body; 2-drum skin; 3, a drum body; 4-a vibration exciter; 5-a vibration pickup; 6-a vibration controller; 7-a storage bin; 8-material; 9-a protective cover; 10-a scaffold; 11-discharge port.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a drum arch breaker, which includes a drum vibration mechanism 1 composed of a drum body 1 and drum heads 2 located at both ends of the drum body 3, and an adaptive resonance system for providing a vibration source of the drum vibration mechanism 1.

The self-adaptive vibration system comprises a power supply, a controller 4, a vibration exciter 4 and a vibration pickup 5, wherein the vibration exciter 4 and the vibration pickup 5 are arranged on the drum head 2, the power supply supplies power to a vibration controller 6, the vibration controller 6 is connected with the vibration exciter 4 and the vibration pickup 5, the vibration controller 6 analyzes and processes the vibration frequency and the vibration amplitude of the drum head 2 collected by the vibration pickup 5, and controls and adjusts the vibration amplitude and the vibration frequency of the vibration exciter 2 according to a processing result.

The vibration controller 6 comprises a signal amplification module, an analog-to-digital conversion module, a data operation module, a data storage module and a power amplification module.

The signal amplification module is used for amplifying the vibration frequency of the drum-shaped vibration body 1 acquired by the vibration pickup 5, transmitting the amplified signal to the analog-to-digital conversion module, converting the amplified signal into a digital signal by the analog-to-digital conversion module, performing operation analysis on the digital signal by the data operation module to obtain the frequency of the resonance state of the drum-shaped vibration body 1, and accordingly obtaining the state of a material body in the bin, meanwhile, the data storage module stores the frequency of the resonance state obtained by analysis, and the function amplification module receives the analysis result to generate a driving signal for controlling the vibration exciter 2, so that feedback control of the resonance state of the drum-shaped vibration body 1 is realized.

The vibration exciter 4 and the vibration pickup 5 adopt explosion-proof or intrinsically safe elements, an explosion-proof isolation grid is arranged in the vibration controller 6, and the cables electrically connected between the vibration exciter 4 and the vibration pickup 5 and the vibration controller 6 adopt explosion-proof flame-retardant cables.

The invention provides a storage bin of a drum-shaped arch breaker, which comprises a storage bin 8 and a discharge port 11 positioned at the bottom of the storage bin, wherein a drum-shaped vibration mechanism 1 is arranged at the bottom in the storage bin 8 for blanking through a support 10, the support 10 is positioned at the top of the discharge port 11, a protective cover 9 is arranged outside the drum-shaped vibration mechanism 1, an umbrella-shaped protective cover 9 can be arranged above the drum-shaped vibration body 1, the protective cover 9 can prevent the drum-shaped vibration body 1 from being impacted when the upper material falls, and meanwhile, a vibration space is reserved for a drum skin 3, so that the vibration energy of the drum skin 3 is not influenced by the impact of the material and reaches the.

Preferably, the exciter 4 and the vibration pickup 5 are mounted on the inner wall of the drum head 2 or on the outer wall of the drum head 2.

The drum body 3 and the drum head 2 are connected by welding, bonding, riveting or bolts, the diameter range of the drum body is 150 mm-2000 mm, the height range of the drum body is 50 mm-500 mm, and the thickness of the drum head is 2 mm-30 mm.

The invention provides an arch breaking method of a drum-shaped arch breaker, which comprises the following steps:

step 100, mounting a drum-shaped arch breaker above an outlet end of a storage bin;

step 200, starting a power supply to enable a drum-shaped arch breaking device to work when a storage bin discharges materials;

step 300, enabling a vibration exciter to provide a vibration source for the drum-shaped arch breaker by the controller at a preset initial frequency, enabling the drum-shaped arch breaker to reach a resonance state under the action of the vibration source and a damping device and break an arch of bulk materials in the storage bin, and acquiring drum skin vibration frequency and vibration amplitude of the drum-shaped arch breaker in real time or at a preset fixed time interval by the vibration pickup and feeding the drum skin vibration frequency and the vibration amplitude back to the controller;

step 400, when the controller judges that the vibration frequency and the vibration amplitude of the drum skin are within the preset threshold range, the vibration controller only provides a power supply and does not adjust the vibration frequency and the vibration amplitude of the vibration exciter;

step 500, when the controller judges that any one of the vibration frequency and the vibration amplitude of the drum skin is larger than a preset upper limit value, the vibration controller adjusts and reduces the vibration frequency or the vibration amplitude of the vibration exciter; and when the controller judges that any one of the vibration frequency and the vibration amplitude of the drum head is smaller than the preset lower limit value, the vibration controller raises the vibration frequency or the vibration amplitude of the vibration exciter.

As shown in figure 2, when the drum-shaped arch breaking device is installed and used, the drum-shaped arch breaking device is installed at the position close to the bin wall below the interior of the bin so as not to hinder blanking.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.