Gas pulse cooperative type vibration feeder anti-blocking system and method

Abstract

The invention discloses a gas pulse cooperative type vibration feeder anti-blocking system and method.The gas pulse cooperative type vibration feeder anti-blocking system comprises a gas source and execution module and a control module, the gas source and execution module comprises a high-pressure gas source, an air cannon and a detection module, the air cannon is connected with the high-pressure gas source through a gas outlet pipe, and the air cannon is located at a material groove of a vibration feeder; the detection module is used for detecting a pressure difference and acquiring a material video and a material flow; and the control module is used for dynamically adjusting the blockage cleaning frequency, the gas pressure and the nozzle angle. The service life of the grate net is prolonged, blockage can be cleaned without shutdown, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating feeders, and more particularly to a gas pulse coordinated vibrating feeder anti-blocking system and method. Background Art

[0002] Existing vibrating feeders use mechanical vibration to drive material flow, but when conveying high-humidity, sticky, or easily agglomerated materials, the following problems still exist: materials tend to adhere to the inner wall of the trough or at the outlet, causing blockage; the traditional method of increasing the amplitude accelerates equipment fatigue damage and increases energy consumption; and manual unblocking caused by shutdowns leads to reduced production efficiency. Summary of the Invention

[0003] In response to the problems existing in the prior art, the purpose of the present invention is to provide a gas pulse coordinated vibrating feeder anti-blocking system and method, which extends the service life of the grate mesh, eliminates the need to stop the machine to clean blockages, and improves production efficiency.

[0004] The present invention adopts the following technical solutions:

[0005] A gas pulse coordinated vibrating feeder anti-blocking system includes an air source, an execution module and a control module.

[0006] The air source and execution module includes a high-pressure air source, an air cannon, and a detection module. The air cannon is connected to the high-pressure air source through an outlet pipe. The air cannon is located at the material trough of the vibrating feeder. The detection module is used to detect pressure differences, obtain material video and material flow;

[0007] The control module is used to dynamically adjust the clearing frequency, gas pressure and nozzle angle.

[0008] Furthermore, the air cannon is equipped with a nozzle.

[0009] Furthermore, it also includes a high-speed solenoid valve and a high-pressure solenoid valve located at the air outlet pipe.

[0010] Furthermore, the detection module includes a pressure difference sensor, a visual detection unit and a material flow sensor, wherein:

[0011] Differential pressure sensors are installed at the inlet, middle and outlet of the trough to monitor the pressure difference in real time.

[0012] The visual inspection unit includes a camera that focuses on the manual rod valve area and captures real-time video of material flow to identify material accumulation or abnormal valve plate spacing;

[0013] The material flow sensor is installed downstream of the rod valve to detect the material falling speed and uniformity, and the data is synchronized to the control module.

[0014] Furthermore, the plurality of nozzles are distributed in a fan shape, a cone shape, or a straight line shape.

[0015] Furthermore, the control module judges and feeds back the data detected by the detection module. When the visual detection module finds material accumulation or the flow sensor shows a sudden drop in flow, the control module determines that the spacing between the rod valves is too close, recommends an adjustment value and issues an alarm.

[0016] Furthermore, it also includes an energy recovery module, which includes a venturi tube accelerator and a filter drying unit: the venturi tube accelerator is installed at the nozzle outlet, and uses the negative pressure generated by the high-speed airflow to suck the residual gas and return it to the gas storage tank through the bypass pipe.

[0017] The filter drying unit is used to filter and dry the recovered gas.

[0018] Furthermore, the high-pressure gas source includes an air compressor and an air storage tank, the air storage tank is connected to the air outlet pipe, and the air compressor is connected to the air storage tank.

[0019] The present invention discloses a gas pulse coordinated vibrating feeder anti-blocking method, comprising the following steps:

[0020] Step S1: Blockage detection

[0021] The differential pressure sensor detects that the differential pressure in a certain section exceeds the standard and determines the location of the blockage. The visual inspection unit simultaneously analyzes the material flow image in the rod valve area and, combined with the flow sensor data, determines whether the valve disc spacing is too close, resulting in poor material flow.

[0022] Step S2: Clear the blockage

[0023] If the trough is blocked, the control module activates the air cannon in the corresponding area, releasing a 0.5-second high-pressure pulse of gas to impact the blockage point. If the problem is with the rod valve, the system prompts to adjust the spacing. After the operator manually adjusts it, the flow sensor verifies the recovery of the blanking.

[0024] Step S3: Energy recovery

[0025] After the jet is finished, the Venturi tube uses the residual air pressure to draw the gas back to the gas storage tank.

[0026] Beneficial effects

[0027] The present invention improves the efficiency of clearing blockages: the response time is ≤0.5 seconds, the blockage rate is reduced by 90%, and there is no need to stop the machine for manual cleaning.

[0028] Achieve energy saving and consumption reduction: Energy recovery technology saves 30% of energy and extends equipment life.

[0029] Achieve intelligent control: Through dual detection of video and material, the status of the rod valve can be accurately determined, reducing maintenance costs by 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of a gas pulse coordinated vibrating feeder anti-blocking system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] As shown in the figure, the present invention discloses a gas pulse coordinated vibrating feeder anti-blocking system, including a gas source, an execution module and a control module.

[0033] The air source and execution module includes a high-pressure air source, an air cannon 1, and a detection module. The air cannon 1 is connected to the high-pressure air source through an air outlet pipe 2. The air cannon 1 is located at the material trough 4 of the vibrating feeder 3. The detection module is used to detect the pressure difference, obtain material video and material flow;

[0034] The control module combines pressure differential, visual images, and flow data to dynamically adjust the clearing frequency, gas pressure (0.5-1.2 MPa), and nozzle angle. The control module is installed in the operating cabinet 5.

[0035] In one embodiment of the present invention, the air cannon 1 is equipped with a nozzle 11. The impact range of the air cannon covers more than 80% of the cross section of the trough.

[0036] In one embodiment of the present invention, a high-speed solenoid valve is further included. The high-pressure solenoid valve is located at the gas outlet pipe 2. The high-speed solenoid valve controls the release timing of the gas pulse, and the response speed reaches millisecond level.

[0037] In one embodiment of the present invention, the detection module includes a pressure difference sensor 6, a visual detection unit 7 and a material flow sensor 8, wherein:

[0038] The differential pressure sensors 6 are installed at the inlet, middle and outlet of the trough to monitor the pressure difference in real time with an accuracy of ±1%.

[0039] The visual inspection unit 7 includes a camera that focuses on the manual rod valve area and captures real-time video of material flow to identify material accumulation or abnormal valve plate spacing;

[0040] The material flow sensor 8 is installed downstream of the rod valve to detect the material falling speed and uniformity, and the data is synchronized to the control module.

[0041] Operators can view suggestions through the human-machine interface, such as "The valve plate spacing is recommended to be adjusted to 15mm", and manually perform adjustments.

[0042] Multi-mode switching: In fully automatic mode, the system makes autonomous decisions; in semi-automatic mode, manual confirmation of instructions is required; in manual mode, the air cannon or rod valve can be directly operated.

[0043] In one embodiment of the present invention, the plurality of nozzles are distributed in a fan shape, a cone shape, or a straight line shape.

[0044] In one embodiment of the present invention, the control module determines and provides feedback on the data detected by the detection module. When the visual detection module finds material accumulation or the flow sensor shows a sudden drop in flow, the control module determines that the rod valve spacing is too close, recommends an adjustment value and issues an alarm.

[0045] In one embodiment of the present invention, an energy recovery module is also included, which includes a Venturi tube accelerator and a filter drying unit: the Venturi tube accelerator is installed at the nozzle outlet, and the negative pressure generated by the high-speed airflow is used to suck the residual gas at a pressure of 0.3 to 0.5 MPa, and the residual gas is recovered into the gas storage tank 10 through a bypass pipe.

[0046] The filter drying unit is used to filter and dry the recovered gas.

[0047] In one embodiment of the present invention, the high-pressure gas source includes an air compressor 9 and an air storage tank 10 . The air storage tank 10 is connected to the air outlet pipe 2 , and the air compressor 9 is connected to the air storage tank 10 .

[0048] The gas pulse and air cannon of the present invention realize coordinated clearing of blockages. The present invention utilizes the instantaneous impact force of high-pressure gas pulse and air cannon, in conjunction with the mechanical vibration of the vibrating feeder, to quickly clear material accumulation on the inner wall or outlet of the trough.

[0049] The invention's pressure differential detection system automatically triggers: differential pressure sensors are installed at the inlet, middle, and outlet of the trough to monitor pressure changes in real time. When an abnormal pressure difference is detected (e.g., upstream and downstream pressure difference ≥ 500Pa), the air cannon or nozzle in the corresponding area is automatically activated to precisely clear the blockage.

[0050] This invention enables manual adjustment of the rod valve and intelligent status monitoring. It features a manual adjustment function, allowing operators to manually adjust the distance between the rod valve discs to control material flow according to actual needs. It also uses dual video and material detection, using a camera to capture real-time images of material flow in the rod valve area and, combined with data from the material flow sensor, analyze whether the material is flowing evenly.

[0051] Intelligent judgment and suggestions: when material accumulation or abnormal flow is detected, the system automatically determines whether the valve plate spacing is too close, and prompts the recommended adjustment value through the human-machine interface, such as changing from 10mm to 15mm, to avoid manual misjudgment.

[0052] The present invention can realize intelligent zoning control, such as dividing the material trough into multiple anti-blocking areas, and automatically matching the nearest nozzle or air cannon according to the blockage location to reduce gas waste.

[0053] Energy recovery is achieved by using the Venturi effect to recover the residual compressed air after injection, which is then stored in an air storage tank after drying and filtering, saving more than 30% of energy.

[0054] It can switch between multiple modes, supporting three modes: fully automatic, semi-automatic (manual confirmation) and manual emergency, to meet the needs of different working conditions.

[0055] The present invention discloses a gas pulse coordinated vibrating feeder anti-blocking method, comprising the following steps:

[0056] Step S1: Blockage detection

[0057] If the differential pressure sensor detects an excessive pressure difference in a certain section, such as a pressure difference between the inlet and the middle of 500 Pa or higher, it determines the location of the blockage. The visual inspection unit simultaneously analyzes the material flow image in the rod valve area and, combined with the flow sensor data, determines whether the valve disc spacing is too close, resulting in poor material flow.

[0058] Step S2: Clear the blockage

[0059] If the trough is clogged, the control module activates the air cannon in the corresponding area, releasing a 0.5-second high-pressure pulse of gas to impact the blockage point. If the problem is with the rod valve, the system prompts you to adjust the spacing, such as from 10mm to 15mm. After the operator manually adjusts it, the flow sensor verifies the recovery of the blanking.

[0060] Step S3: Energy recovery

[0061] After the jet is completed, the Venturi tube uses the residual air pressure to draw the gas back to the gas storage tank, with a recovery efficiency of 60%~70%.

[0062] Use the fully automatic mode under normal working conditions; switch to semi-automatic or manual mode for manual intervention during equipment maintenance or complex blockages.

[0063] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A gas pulse coordinated vibrating feeder anti-blocking system, characterized by: Including gas source, execution module and control module, The air source and execution module includes a high-pressure air source, an air cannon, and a detection module. The air cannon is connected to the high-pressure air source through an outlet pipe. The air cannon is located at the material trough of the vibrating feeder. The detection module is used to detect pressure differences, obtain material video and material flow; The control module is used to dynamically adjust the clearing frequency, gas pressure and nozzle angle.

2. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 1, characterized in that: Air cannon equipped with nozzle.

3. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 1, characterized in that: It also includes a high-speed solenoid valve and a high-pressure solenoid valve located at the outlet pipe.

4. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 1, characterized in that: The detection module includes a differential pressure sensor, a visual detection unit, and a material flow sensor, wherein: Differential pressure sensors are installed at the inlet, middle and outlet of the trough to monitor the pressure difference in real time; The visual inspection unit includes a camera that focuses on the manual rod valve area and captures real-time video of material flow to identify material accumulation or abnormal valve plate spacing; The material flow sensor is installed downstream of the rod valve to detect the material falling speed and uniformity, and the data is synchronized to the control module.

5. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 2, characterized in that: Multiple nozzles are distributed in fan shape, cone shape or straight line shape.

6. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 1, characterized in that: The control module judges and provides feedback on the data detected by the detection module. When the visual detection module finds material accumulation or the flow sensor shows a sudden drop in flow, the control module determines that the spacing between the rod valves is too close, recommends adjustment values ​​and issues an alarm.

7. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 2, characterized in that: It also includes an energy recovery module, which includes a Venturi tube accelerator and a filter drying unit: the Venturi tube accelerator is installed at the nozzle outlet, and uses the negative pressure generated by the high-speed airflow to suck the residual gas and return it to the gas storage tank through the bypass pipe. The filter drying unit is used to filter and dry the recovered gas.

8. The gas pulse coordinated vibrating feeder anti-blocking system according to claim 1, characterized in that: The high-pressure gas source includes an air compressor and an air storage tank. The air storage tank is connected to the air outlet pipe, and the air compressor is connected to the air storage tank.

9. A gas pulse coordinated vibrating feeder anti-blocking method, characterized by: The following steps are involved: Step S1: Blockage detection The differential pressure sensor detects that the differential pressure in a certain section exceeds the standard and determines the location of the blockage. The visual inspection unit simultaneously analyzes the material flow image in the rod valve area and, combined with the flow sensor data, determines whether the valve disc spacing is too close, resulting in poor material flow. Step S2: Clear the blockage If the trough is blocked, the control module activates the air cannon in the corresponding area, releasing a 0.5-second high-pressure pulse of gas to impact the blockage point. If the problem is with the rod valve, the system prompts to adjust the spacing. After the operator manually adjusts it, the flow sensor verifies the recovery of the blanking. Step S3: Energy recovery After the jet is finished, the Venturi tube uses the residual air pressure to draw the gas back to the gas storage tank.

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