Automatic frequency-adjustable and intensity-adjustable multi-unit pneumatic material loosening device

Abstract

The invention provides an automatic frequency-adjustable and intensity-adjustable multi-unit pneumatic material loosening device which comprises a plurality of vibrating pieces arranged in the circumferential direction of a mineral stock bin. The driving parts are fixed to the mineral stock bin, and the output ends of the driving parts can drive the vibrating parts to vibrate; the monitoring module comprises a radar level gauge, a PLC (Programmable Logic Controller) and an energy supply assembly; the energy supply assembly is connected with the driving part and can adjust the output frequency and intensity of the output end of the driving part. According to the automatic frequency-adjustable and intensity-adjustable multi-unit pneumatic material loosening device, all-directional vibration material loosening of materials in a mineral material bin can be achieved, the problem that the arch breaking effect of local positions is poor is effectively solved, and meanwhile the output frequency and intensity of the energy supply assembly to the driving part can be adjusted according to the material level condition; automation and intellectualization of the arch breaking process are achieved, and the arch breaking efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mineral storage and conveying, and particularly relates to an automatic adjustable frequency and intensity multi-unit pneumatic loosening device. BACKGROUND

[0002] In the mining, chemical, building material and other industries, the cement silo is the core equipment for the storage and transfer of granular materials, and the smoothness of the silo directly affects the continuity of the subsequent production.

[0003] However, materials such as ores, cement and fly ash have humidity sensitivity: when the environmental humidity is too high, the materials are easy to absorb water in the air, the cohesion between particles is enhanced, and "arches" or "wall sticking" are formed on the inner wall of the silo.

[0004] In the prior art, a vibrating motor or an air cannon and other arch breaking devices are usually directly arranged on the mineral silo to act on the silo wall or the arching material to break the arch, but the above prior art often only acts on a local position, the arch breaking effect is not comprehensive, in addition, the arch breaking device cannot automatically adjust the frequency and intensity according to the actual situation of the material, resulting in low arch breaking efficiency, which cannot meet the high requirements of modern industrial production on continuity and stability. SUMMARY

[0005] Based on the above status, the main purpose of the present application is to provide an automatic adjustable frequency and intensity multi-unit pneumatic loosening device to solve the problem that the existing silo directly installs and uses an air cannon or an arch breaking device, the arch breaking effect is not comprehensive, the frequency and intensity cannot be automatically adjusted, the arch breaking efficiency is low, and the modern industrial production cannot meet the high requirements of continuity and stability.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows: An automatic adjustable frequency and intensity multi-unit pneumatic loosening device comprises: a plurality of vibrating members arranged along the circumferential direction of the mineral silo; a plurality of driving members fixed to the mineral silo, the output end of the driving member being capable of driving the vibrating member to vibrate; a monitoring module comprising a radar material level meter, a PLC controller and an energy supply assembly, the signal of the radar material level meter being capable of being connected to the PLC controller, and the energy supply assembly being connected to the PLC controller; the energy supply assembly and the driving member being connected, and the energy supply assembly being capable of adjusting the output frequency and intensity of the output end of the driving member.

[0007] Preferably, it further comprises an annular air pipe fixed to the outer periphery of the silo. The driving member is a cylinder, and the end of the telescopic rod of the cylinder can act on the vibrating member as an output end. The energy supply assembly comprises an air inlet electromagnetic valve, an air outlet electromagnetic valve and a filter regulating valve, and the high-pressure gas source passes the gas into the annular air pipe through the filter regulating valve and the air inlet electromagnetic valve in sequence, and the gas in the annular air pipe is discharged into the atmosphere through the air outlet electromagnetic valve.

[0008] Preferably, a pressure sensor is installed on the annular air pipe, and the signal of the pressure sensor can be connected to a PLC controller, and the PLC controller is further connected with an alarm module.

[0009] Preferably, the vibrating member comprises a hook and a material measuring plate, the hook is connected with the material measuring plate, and the hook is hung in the interior of the ore bin.

[0010] Preferably, a flow guide plate is further included, the flow guide plate is fixed in the ore bin, and the flow guide plate is a reverse conical cylindrical structure, and the area of the upper opening is larger than that of the lower opening. The flow guide plate is located above each vibrating member, and the outer circle of the flow guide plate and the middle of the ore bin form a mounting area, and each connecting part is located in the mounting area.

[0011] Preferably, an inclined rod is fixed to the end of the hook, and the inclined rod and the hook form an outwardly expanding horn opening.

[0012] Preferably, a vibrating rod is fixed to the end of the telescopic rod of the cylinder, and a rubber buffer pad is fixed to the end of the vibrating rod.

[0013] Preferably, a through hole is formed in the side wall of the bin, a rubber sealing ring is fixed in the through hole, and the telescopic rod of the cylinder passes through the rubber sealing ring.

[0014] Preferably, a gap is arranged between each adjacent material measuring plate, and the width of the gap is 5-10mm.

[0015] Preferably, the thickness of the material measuring plate is 14-16mm.

[0016] The automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device has the advantages that the automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device is provided with a plurality of vibration members arranged along the circumferential direction of the ore bin and driving members matched with the vibration members, the vibration members realize omnibearing vibration of the material in the ore bin, and the problem of poor arch breaking effect in a local position is effectively avoided.

[0017] Other advantages of the present application will be described in the specific embodiments by introducing specific technical features and technical solutions, and those skilled in the art should understand the advantages brought by the technical features and technical solutions through the introduction of the technical features and technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of a cross section of an automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device.

[0019] Figure 2 It is a schematic diagram of a hook of an automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device.

[0020] Figure 3 It is a top view of a cross section of an automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device.

[0021] Figure 4 It is a module connection diagram of a radar material level meter of an automatic adjustable frequency and intensity type multi-unit pneumatic material loosening device.

[0022] Figure 5 It is an enlarged schematic diagram of part A.

[0023] BRIEF DESCRIPTION OF DRAWINGS 1, vibration member; 11, hook; 111, inclined rod; 12, material measuring plate; 121, gap; 2, driving member; 21, vibration rod; 22, rubber buffer pad; 3, monitoring module; 31, radar material level meter; 32, PLC controller; 33, energy supply assembly; 331, air inlet electromagnetic valve; 332, air outlet electromagnetic valve; 333, filter regulating valve; 4, guide plate; 5, circular hanging rod; 6, annular air pipe; 61, pressure sensor. DETAILED DESCRIPTION

[0024] The present application is described in detail below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, some specific details are described in detail in order to avoid obscuring the essence of the present application, and well-known methods, processes, procedures, elements are not described in detail.

[0025] In addition, those skilled in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0026] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

[0027] In the description of the present application, it should be understood that the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0028] The present application provides an automatic adjustable frequency intensity type multi-unit pneumatic material loosening device, which is installed on a material bin, especially a conical area below the material bin, for relieving arching of the material and ensuring smooth flow of the material.

[0029] Referring to Figures 1-2 , the automatic adjustable frequency intensity type multi-unit pneumatic material loosening device comprises a vibrating member 1, a driving member 2, a monitoring module 3 and a flow guide plate 4. The vibrating member 1 and the driving member 2 are provided in plurality, the vibrating member 1 is movably arranged in the material bin, the driving member is used to drive the vibrating member 1 to vibrate in the material bin, the vibrating member 1 can shake off the material adhered to the vibrating member 1 during the vibration process, and the material is smoothly dropped, and the flow guide plate 4 can avoid forming vortex or accumulation dead angle around the vibrating member 1, and guide the material to orderly drop. The monitoring module 3 is used to monitor the material flow condition in the bin, and correspondingly adjust the working strength and frequency of the driving member 2.

[0030] A plurality of circular hanging rods 5 are fixed on the inner side of the material bin, one end of the circular hanging rod 5 is pre-buried and fixed on the concrete structure of the material bin, and the other end forms a hanging point in the material bin, which is used to cooperate with the vibrating member 1 and meet the activity requirements of the vibrating member 1.

[0031] The guide plate 4 is fixed in the ore bin, the guide plate 4 is a reverse conical cylindrical structure, the guide plate 4 and the ore bin are coaxially arranged, the upper end of the guide plate 4 is welded and fixed to the inner wall of the ore bin, the area of the upper end opening of the guide plate 4 is larger than that of the lower end opening, the guide plate 4 forms an inclined surface in the ore bin, which is used for guiding the flow direction of the ore, so that the material is gathered towards the central area of the ore bin and falls orderly, and vortex or accumulation dead angle is avoided around the vibrating piece 1 or the side wall of the ore.

[0032] The outer ring of the guide plate 4 and the inner wall of the ore bin form an installation area, and the circular hanging rod 5 is located in the installation area, so that the movable suspension point of the vibrating plate can be covered by the guide plate 4, and the covered suspension position is not directly impacted by the ore, thereby avoiding damage.

[0033] Specifically, in the embodiment, the number of the vibrating pieces 1 and the driving pieces 2 is six as an example, and those skilled in the art should know that the number of the vibrating pieces 1 and the driving pieces 2 can be adjusted according to the size of the ore bin and actual production needs in actual use.

[0034] The six vibrating pieces 1 are uniformly arranged along the circumferential direction of the ore bin in the ore bin, and each vibrating piece 1 includes a hook 11 and a material measuring plate 12.

[0035] As an example, the end of the hook 11 is fixed with an inclined rod 111, and the inclined rod 111 and the hook 11 form an outwardly expanding horn opening. The ring type direct impact material loosening device provided by the application can be installed by using a crane to hoist from top to bottom, and the outwardly expanding horn opening can reduce the hoisting precision, so that the hook 11 is easily hung on the circular hanging rod 5. When the vibrating piece 1 is installed, the guide plate 4 is welded and fixed on the side wall of the ore bin.

[0036] The material measuring plate 12 is an arc-shaped plate, and the material measuring plate 12 and the ore bin are coaxially arranged. The edges of the upper side and the lower side of the material measuring plate 12 are both arc-shaped lines, the length of the edge of the upper side is greater than that of the lower side, and the lower side is closer to the axis of the ore bin than the upper side. A plurality of material measuring plates 12 can form a reverse conical material vibrating area, and the material vibrating area covers above the side wall of the conical part of the ore bin.

[0037] Referring to Figure 3As an embodiment, gaps 121 are arranged between adjacent measuring plates 12, and the width of the gaps 121 is 5-10 mm. The gaps 121 can ensure that the measuring plates 12 do not interfere with each other during vibration, and can avoid the situation that the mineral materials directly slide from the gaps 121 and cannot be vibrated, thereby ensuring the effective action of the whole vibrating area on the mineral materials.

[0038] Further, the measuring plates 12 are steel plates, and the thickness is set to 14-16 mm. The combination of the thickness and the material can make the measuring plates 12 have sufficient strength to withstand the impact of the mineral materials and the vibration of the measuring plates 12, and can also ensure good vibration transmission performance, so that the vibration energy generated by the driving member 2 can be efficiently transmitted to the mineral materials adhered thereto, and the arch breaking effect is further enhanced.

[0039] The driving member 2 is fixed on the mineral material bin, and the output end of the driving member 2 can act on the measuring plates 12, so that the plurality of measuring plates 12 can vibrate synchronously. In operation, after the driving member 2 is started, the acting force generated by the output end of the driving member 2 is transmitted to the measuring plates 12, so that the measuring plates 12 are driven to vibrate relative to the mineral material bin. Since the plurality of measuring plates 12 are arranged along the circumferential direction of the mineral material bin and vibrate synchronously, a dynamic large-area vibrating area can be formed in the conical part of the mineral material bin, and the arching problem of the mineral materials can be effectively alleviated, so that the mineral materials can smoothly flow in the mineral material bin.

[0040] Referring to Figure 1 and Figure 4 , the monitoring module 3 includes a radar material level meter 31, a PLC controller 32 and a power supply assembly 33. The signal of the radar material level meter 31 can be connected to the PLC controller 32, and the power supply assembly 33 is connected to the PLC controller 32. The power supply assembly 33 is connected to the driving member 2.

[0041] The radar material level meter 31 is fixed in the mineral material bin, can detect the material level and flow state change of the mineral materials in the mineral material bin in real time, and send a signal to the PLC controller 32. The PLC controller 32 can send a signal to the power supply assembly 33, and the power supply assembly 33 can accurately control the working state of the driving member 2 according to the instruction of the PLC controller 32, so that the vibrating member 1 can vibrate at the most appropriate frequency and strength, thereby achieving the best loosening effect.

[0042] In practical application, when the radar material level meter 31 detects that the flow of the mineral material in a certain area of the mineral material bin slows down or arching occurs, it will immediately send a signal to the PLC controller 32. After receiving the signal, the PLC controller 32 will send an adjustment instruction to the energy supply component 33, and the energy supply component 33 will change the energy supply state of the driving member 2 according to the instruction, such as increasing or decreasing the air pressure, adjusting the opening and closing frequency of the valve, etc., so as to change the output intensity and frequency of the output end of the driving member 2. Through such automatic adjustment, it can ensure that the material in the mineral material bin always maintains a smooth discharging state, greatly improving the production efficiency and stability.

[0043] As an embodiment, the driving member 2 is a pneumatic cylinder, and the end of the telescopic rod of the pneumatic cylinder serves as the output end and can act on the measuring plate 12. The automatic adjustable frequency and intensity type multi-unit pneumatic loosening device further comprises a ring-shaped air pipe 6, which is in communication with the plurality of pneumatic cylinders, and the gas in the ring-shaped air pipe 6 can enter and exit the pneumatic cylinders, so as to push the telescopic rod of the pneumatic cylinder to reciprocate.

[0044] The energy supply component 33 comprises an air inlet electromagnetic valve 331, an air outlet electromagnetic valve 332 and a filter regulating valve 333. The external high-pressure gas source can pass the gas into the ring-shaped air pipe 6 in sequence through the filter regulating valve 333 and the air inlet electromagnetic valve 331, and the air outlet electromagnetic valve 332 can control the gas to exit the ring-shaped air pipe 6. The filter regulating valve 333 is connected with the PLC controller 32, and the PLC controller 32 can transmit a pressure adjusting signal to the filter regulating valve 333. By adjusting the adjusting pressure of the filter regulating valve 333, the overall air intake amount into the ring-shaped air pipe 6 is adjusted, so as to adjust the impact intensity transmitted by the telescopic rod of the pneumatic cylinder to the measuring plate 12.

[0045] The air inlet electromagnetic valve 331 and the air outlet electromagnetic valve 332 are both high-frequency electromagnetic valves and are connected with the PLC controller 32. The PLC controller 32 can respectively transmit a frequency control signal and a pressure relief control signal to the air inlet electromagnetic valve 331 and the air outlet electromagnetic valve 332. The PLC controller 32 can adjust the opening and closing frequency of the air inlet electromagnetic valve 331 and the air outlet electromagnetic valve 332 according to the signal sent by the radar material level meter 31, so as to adjust the impact frequency transmitted by the telescopic rod of the pneumatic cylinder to the measuring plate 12.

[0046] Further, the ring-shaped air pipe 6 is provided with a pressure sensor 61, and the signal of the pressure sensor 61 can be connected to the PLC controller 32. The PLC controller 32 is further connected with an alarm module. The pressure sensor 61 and the radar material level meter 31 can respectively transmit the pressure state of the ring-shaped air pipe 6 and the flow state of the mineral material in the mineral material bin to the PLC sensor. When the system is running, if the radar material level meter 31 detects that the material level is stationary for too long and the vibration member 1 does not improve after being started to vibrate for a certain time, or the pressure sensor 61 detects that the pressure in the ring-shaped air pipe 6 is abnormal, the PLC controller 32 will send a fault signal, and the alarm module will alarm and request manual intervention.

[0047] With reference to Figure 5 As an embodiment, the end of the telescopic rod of the cylinder is fixed with a vibration rod 21, and the end of the vibration rod 21 is further fixed with a rubber buffer pad 22. The rubber buffer pad 22 can further reduce the impact and wear between the vibration rod 21 and the measuring plate 12, protect the measuring plate 12 and the vibration rod 21 from being damaged, and reduce the noise during the operation of the equipment.

[0048] Further, the sidewall of the bin is provided with a through hole, and a rubber sealing ring (not shown in the figure) is fixed in the through hole, and the vibration rod 21 is arranged in the rubber sealing ring. The arrangement of the rubber sealing ring can effectively prevent the leakage of the mineral aggregate from the through hole, and can also reduce the friction between the vibration rod 21 and the sidewall of the bin during reciprocating movement, thereby prolonging the service life of the equipment. In actual installation, the inner diameter of the rubber sealing ring matches the outer diameter of the telescopic rod of the cylinder, so as to ensure good sealing effect and smooth movement of the telescopic rod.

[0049] It can be understood by those skilled in the art that the above preferred schemes can be freely combined and superimposed without conflict.

[0050] It should be understood that the above embodiments are only exemplary and not limiting, and those skilled in the art can make various obvious or equivalent modifications or replacements to the above details without departing from the essential principles of the present application, which shall be included in the scope of the claims of the present application.

Claims

1. An automatically adjustable frequency intensity multi-cell pneumatic loosening device, characterized in that, The utility model relates to a kind of ore bin vibration device, including: Multiple vibrating members (1), multiple vibrating members (1) are arranged along the circumferential direction of the ore bin; Multiple driving members (2), the driving member (2) is fixed to the ore bin, and the output end of the driving member (2) can drive the vibrating member (1) to vibrate; Monitoring module (3), the monitoring module (3) includes radar material level gauge (31), PLC controller (32) and energy supply component (33), the signal of the radar material level gauge (31) can be accessed to the PLC controller (32), and the energy supply component (33) is connected with the PLC controller (32); The energy supply component (33) is connected with the driving member (2), and the energy supply component (33) can adjust the output frequency and intensity of the output end of the driving member (2).

2. The self-adjustable frequency intensity multi-cell pneumatic loosening device of claim 1, wherein, It also includes annular air pipe (6), and the annular air pipe (6) is fixed to the outer periphery of the bin; The driving member (2) is a pneumatic cylinder, and the end of the telescopic rod of the pneumatic cylinder serves as an output end and can act on the vibrating member (1), the annular air pipe (6) is communicated with the pneumatic cylinder; The energy supply component (33) includes an air inlet solenoid valve (331), an air outlet solenoid valve (332) and a filter regulating valve (333), a high-pressure gas source passes through the filter regulating valve (333) and the air inlet solenoid valve (331) in sequence to introduce gas into the annular air pipe (6), and the gas in the annular air pipe (6) is discharged into the atmosphere through the air outlet solenoid valve (332).

3. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 1, wherein, A pressure sensor (61) is installed on the annular air pipe (6), and the signal of the pressure sensor (61) can be accessed to the PLC controller (32). The PLC controller (32) is also connected with an alarm module.

4. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 1, wherein, The vibrating member (1) includes a hook (11) and a material measuring plate (12), the hook (11) and the material measuring plate (12) are connected, and the hook (11) is hung in the interior of the ore bin.

5. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 4, wherein, It also includes a deflector (4), and the deflector (4) is fixed in the ore bin. The deflector (4) is a reverse conical cylindrical structure, and the area of the opening at the upper end is greater than the area of the opening at the lower end. The deflector (4) is located above each vibrating member (1), and the outer ring of the deflector (4) and the middle of the ore bin form a mounting area, and each hook (11) is located in the mounting area.

6. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 4, wherein, The end of the hook (11) is fixed with an inclined rod (111), and the inclined rod (111) and the hook (11) form an outwardly expanding horn opening.

7. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 2, wherein, The end of the telescopic rod of the pneumatic cylinder is fixed with a vibrating rod (21), and the end of the vibrating rod (21) is fixed with a rubber buffer pad (22).

8. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 7, wherein, A through hole is formed in the side wall of the bin, a rubber sealing ring is fixed in the through hole, and the telescopic rod of the pneumatic cylinder passes through the rubber sealing ring.

9. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 4, wherein, A gap (121) is arranged between each adjacent material measuring plate (12), and the width of the gap (121) is 5-10 mm.

10. The self-adjusting frequency intensity multi-cell pneumatic loosening device of claim 4, wherein, The thickness of the material measuring plate (12) is 14-16 mm.

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