Anti-caking and arch-breaking device for bio-organic fertilizer storage silos

Abstract

This utility model relates to an anti-caking and arch-breaking device for bio-organic fertilizer storage silos, comprising a feeding silo with a discharging silo connected below it. The discharging silo is equipped with a three-dimensional vibration arch-breaking system and a rotary arch-breaking system. The three-dimensional vibration arch-breaking system includes a vibration motor evenly distributed around the walls of the discharging silo. The rotary arch-breaking system includes a bottom rotating column rotatable at the central axis inside the discharging silo. Multiple rotating blades are staggered on the surface of the bottom rotating column. This utility model can prevent material from sticking to the silo walls through high-frequency vibration and actively break up material arches through the rotating blades, effectively reducing the agglomeration rate and ensuring smooth unloading.

Description

Technical Field

[0001] This utility model relates to the technical field of bio-organic fertilizer production equipment, and in particular to a device for preventing material caking and breaking arches in bio-organic fertilizer storage silos. Background Technology

[0002] In the large-scale production of bio-organic fertilizer, storage silos are key equipment used for the temporary storage of semi-finished or finished organic fertilizer products. Because bio-organic fertilizer raw materials contain a certain proportion of moisture (usually 15%-30%) and include components rich in fiber and viscous substances such as straw and livestock manure, they are prone to clumping during storage due to the adsorption and cohesion between materials. Simultaneously, during the unloading stage, the material at the conical bottom of the storage silo easily forms stable "material arches" (i.e., materials supporting each other to form an arch-like structure) due to compression, leading to blockage of the unloading channel and severely affecting production continuity.

[0003] Currently, the traditional methods used in the industry to solve the above problems mainly rely on manual knocking of the silo walls or manual unblocking. These methods are not only ineffective in preventing material caking and breaking up arches, but also have the following drawbacks: First, frequent manual intervention increases labor costs (each production line requires an additional 2-3 workers); second, the knocking process can easily cause mechanical damage to the silo body, shortening the service life of the storage silo; and third, it cannot fundamentally solve the caking problem (it can only break up surface caking), and the arch-breaking effect is slow, which can easily lead to production interruptions. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a device for preventing material caking and breaking up arches in bio-organic fertilizer storage silos. The specific technical solution is as follows:

[0005] A bio-organic fertilizer storage silo anti-caking and arch-breaking device includes a feeding silo, with a discharging silo connected below the feeding silo. The discharging silo is equipped with a three-dimensional vibration arch-breaking system and a rotary arch-breaking system. The three-dimensional vibration arch-breaking system includes a vibration motor, which is evenly arranged around the walls of the discharging silo. The rotary arch-breaking system includes a bottom rotating column that can rotate at the central axis inside the discharging silo. Multiple rotating blades are staggered on the surface of the bottom rotating column.

[0006] As a further improvement to the above technical solution, a drive motor is installed on the top of the feeding hopper, a top rotating column is fixedly connected to the top of the bottom rotating column, a number of stirring rods are connected to the surface of the top rotating column, and the top output rod of the top rotating column is connected to the output shaft of the drive motor.

[0007] As a further improvement to the above technical solution, the rotating blade is provided with several toothed grooves at its edge.

[0008] As a further improvement to the above technical solution, a hot air blower is installed on the top of the feeding hopper, an annular air outlet pipe is installed on the top inner side of the feeding hopper, several air outlets are installed at the bottom of the annular air outlet pipe, the air supply end of the hot air blower is connected to the annular air outlet pipe, and a microwave humidity monitor is also installed on the top inner side of the feeding hopper.

[0009] As a further improvement to the above technical solution, the top of the feeding hopper is connected to a feeding funnel and an exhaust valve, and the bottom of the discharging hopper is connected to a discharge pipe, on which a valve is installed.

[0010] As a further improvement to the above technical solution, the inner side of the feeding hopper has four sets of downward inclined surfaces, and each inclined surface is provided with multiple vibration motors, which are arranged in the vertical axis of the inclined surface.

[0011] As a further improvement to the above technical solution, the feeding hopper is also equipped with frequency converter one and frequency converter two. Frequency converter one is electrically connected to the vibrating motor, and frequency converter two is electrically connected to the hot air blower.

[0012] As a further improvement to the above technical solution, a controller is also included, wherein the drive motor, vibration motor, microwave humidity monitor, exhaust valve and hot air blower are all connected to the controller.

[0013] The beneficial effects of this utility model are:

[0014] 1. Dual protection against caking and arch breaking: Through the synergistic action of the three-dimensional vibration arch breaking system (vibration motor) and the rotary arch breaking system (bottom rotating column + rotating blades), high-frequency vibration can prevent materials from sticking to the bin wall, and the rotating blades can actively break up material arches, effectively reducing the caking rate and ensuring smooth unloading.

[0015] 2. Control humidity at the source to reduce the risk of clumping: The humidity of the material is monitored in real time by a microwave humidity monitor. When the humidity exceeds the standard, the hot air fan is automatically started and hot air is evenly delivered through the ring-shaped air outlet pipe to reduce the moisture content of the material from the source and solve the clumping problem caused by high humidity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the upper and lower hoppers in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the feeding hopper in this utility model.

[0019] Attached reference numerals: 1. Feeding hopper; 100. Inclined surface; 2. Discharging hopper; 3. Drive motor; 4. Discharge pipe; 5. Vibrating motor; 6. Bottom rotating column; 7. Rotating blade; 71. Toothed groove; 8. Top rotating column; 9. Stirring rod; 10. Feeding funnel; 11. Microwave humidity monitor; 12. Annular air outlet pipe; 121. Air outlet; 13. Exhaust valve; 14. Hot air blower. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Example

[0022] For the anti-caking and arch-breaking device of the bio-organic fertilizer storage silo, please refer to... Figures 1-3 It includes a feeding hopper 1 and a discharging hopper 2, which can be connected by a flange for sealing (a wear-resistant rubber gasket is installed between the flanges to prevent material leakage). The whole is made of Q345 wear-resistant steel welded and formed, with a wall thickness of 8-10mm, and can adapt to the working pressure of 0.1-0.3MPa in the hopper.

[0023] Specifically, the top of the feeding hopper 1 is cylindrical, and the bottom is a truncated pyramid structure. The inner side has four sets of downward-sloping surfaces to guide the material to flow towards the center. The top of the feeding hopper 1 is bolted with a drive motor 3 (model Y132M-4, power 7.5kW), a feeding funnel 10 (diameter 500mm, for easy feeding by forklift or conveyor belt), and an exhaust valve 13 (electromagnetic type, model ZCF-16, to balance the air pressure inside the hopper). An annular air outlet pipe 12 is welded to the top of the inner side, and 20 air outlets 121 (orifice diameter 10mm, inclined at 45° to spray hot air onto the material) are evenly distributed at the bottom of the pipe. A microwave humidity monitor 11 (model MS-100, detection range 5%-40%, accuracy ±1%) is installed on the top side of the inner side via a bracket to monitor the surface humidity of the material in real time.

[0024] The feeding hopper 2 has a conical structure with four sets of downward-sloping ramps 200 on its inner side (inclination angle 55° to reduce material stagnation dead zones). Each ramp 200 has three vibrating motors 5 (model YZO-10-6, power 0.75kW, amplitude 1.5mm) mounted vertically along its axis. Four additional vibrating motors 5 can be installed around the perimeter of the feeding hopper 2, for a total of 16 motors. The frequency of all motors is adjusted via a frequency converter (model FR-E740-0.75K). A discharge pipe 4 is welded to the bottom of the feeding hopper, on which a pneumatic valve (model Q611F-16, linked to the controller for unloading) is installed.

[0025] Specifically, the rotary arch-breaking system includes a bottom rotating column 6 (located at the center axis of the discharge bin 2) and a top rotating column 8 (located at the center of the feed bin 1), which are coaxially fixedly connected by a coupling. The bottom rotating column 6 has six sets of rotating blades 7 welded to its surface (two blades per set, staggered at 120°, with lengths adapted to the inner diameter of the discharge bin 2), and the blade edges have toothed grooves 71 (15mm deep, 20mm spacing, to enhance the shearing force against agglomerates). The top rotating column 8 has four sets of stirring rods 9 welded to its surface (the ends are bent at 15° to stir the material in the feed bin 1 and prevent agglomeration on the upper layer). The top of the top rotating column 8 is connected to the output shaft of the drive motor 3 via a coupling, driving the entire system to rotate (speed 0-60 r / min, adjustable by a controller).

[0026] In the preferred hot air system of this application, a hot air blower 14 (model RB-200A, power 3kW, outlet temperature 50-80℃) is installed on the top of the feeding hopper 1. Its air supply end is connected to the annular outlet pipe 12 through a high-temperature resistant hose. The wind speed of the hot air blower 14 is adjusted by a frequency converter (model VFD004M43B) (5-15m / s).

[0027] In the preferred control system of this application, a PLC controller (model S7-200 SMART) is used, which is connected to drive motor 3, vibration motor 5, microwave humidity monitor 11, exhaust valve 13, hot air blower 14, and frequency converters one and two via wires. The controller presets a humidity threshold (e.g., 25%). When the value detected by microwave humidity monitor 11 exceeds the threshold, the hot air blower 14 and exhaust valve 13 are automatically started (hot air is introduced for 3-5 minutes and then closed, and the exhaust valve operates synchronously to balance the air pressure). During unloading, the controller starts vibration motor 5 (frequency 30Hz) and drive motor 3 (speed 40r / min) in conjunction, and automatically shuts down after the arch breaking is completed.

[0028] Working principle

[0029] 1. Feeding stage: The bio-organic fertilizer enters the feeding hopper 10 into the feeding bin 1. The drive motor 3 drives the top rotating column 8 and the stirring rod 9 to rotate, which initially stirs the material and prevents it from piling up and clumping. The microwave humidity monitor 11 monitors the humidity in real time and transmits it to the controller.

[0030] 2. Humidity control stage: If the humidity is >25%, the controller starts the hot air blower 14. The hot air is blown evenly onto the material through the annular air outlet 12 and the air outlet 121. At the same time, the exhaust valve 13 is opened to discharge the moisture until the humidity drops below the threshold (the hot air temperature is 50-60℃ to avoid high temperature damaging the activity of organic fertilizer).

[0031] 3. Unloading stage: Open the valve of the discharge pipe 4, and the controller starts the vibration motor 5 (adjusted to 30Hz by the frequency converter) and the drive motor 3 (the bottom rotating column 6 drives the rotating blade 7 to rotate at 40r / min); the high-frequency vibration generated by the vibration motor 5 causes the material on the bin wall to fall off, and the rotating blade 7 shears and crushes the material arch that is about to be formed through the tooth groove 71. The material is discharged through the discharge pipe 4 under the action of gravity and vibration.

[0032] 4. Shutdown phase: After unloading is completed, the controller shuts down the vibration motor 5, drive motor 3 and valve in sequence to complete one operation cycle.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing arching and caking in a bio-organic fertilizer storage bin, characterized in that, It includes a feeding hopper (1), and a feeding hopper (2) is connected below the feeding hopper (1). The feeding hopper (2) is equipped with a three-dimensional vibration arch breaking system and a rotary arch breaking system. The three-dimensional vibration arch breaking system includes a vibration motor (5), which is evenly arranged around the wall of the feeding hopper (2). The rotary arch breaking system includes a bottom rotating column (6) that can rotate at the central axis inside the feeding hopper (2). Multiple rotating blades (7) are staggered on the surface of the bottom rotating column (6).

2. The arching prevention device for bio-organic fertilizer storage bin according to claim 1, characterized in that: The top of the feeding hopper (1) is equipped with a drive motor (3), the top of the bottom rotating column (6) is fixedly connected with a top rotating column (8), the surface of the top rotating column (8) is connected with a number of stirring rods (9), and the top output rod of the top rotating column (8) is connected to the output shaft of the drive motor (3).

3. The arching prevention device for bio-organic fertilizer storage bin according to claim 2, characterized in that: The rotating blade (7) has several toothed grooves (71) at its edge.

4. The biological organic fertilizer storage bin anti-caking and arch-breaking device according to claim 3, characterized in that: A hot air blower (14) is installed on the top of the feeding hopper (1), and an annular air outlet pipe (12) is installed on the top inner side of the feeding hopper (1). Several air outlets (121) are installed at the bottom of the annular air outlet pipe (12). The air supply end of the hot air blower (14) is connected to the annular air outlet pipe (12). A microwave humidity monitor (11) is also installed on the top inner side of the feeding hopper (1).

5. The biological organic fertilizer storage bin anti-caking and arch-breaking device according to claim 4, characterized in that: The top of the feeding hopper (1) is connected to a feeding funnel (10) and an exhaust valve (13), and the bottom of the unloading hopper (2) is connected to a discharge pipe (4), on which a valve is installed.

6. The biological organic fertilizer storage bin anti-caking and arch-breaking device according to claim 5, characterized in that: The inner side of the feeding bin (2) has four sets of downward inclined surfaces (200), and each inclined surface (200) is provided with multiple vibration motors (5), which are arranged in the vertical axis of the inclined surface (200).

7. The biological organic fertilizer storage bin anti-caking and arch-breaking device according to claim 6, characterized in that: The feeding hopper (1) is also equipped with a frequency converter one and a frequency converter two. The frequency converter one is electrically connected to the vibration motor (5), and the frequency converter two is electrically connected to the hot air blower (14).

8. The biological organic fertilizer storage bin anti-caking and arch-breaking device according to claim 5, characterized in that: It also includes a controller, and the drive motor (3), vibration motor (5), microwave humidity monitor (11), exhaust valve (13) and hot air blower (14) are all connected to the controller.

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