A vibrating dosing apparatus for an unmanned assay system

Abstract

This utility model belongs to the field of vibratory feeding technology and discloses a vibratory feeding device for an unmanned testing system, used to feed coal powder into a crucible. The vibratory feeding device includes a guide trough fixedly connected to a frame, the bottom wall of the guide trough for supporting the coal powder, an inlet on one side wall along the length of the guide trough, and an outlet on the other side wall. The crucible is located below the outlet. The guide trough is inclined relative to the ground along its length, with the inlet above the outlet. A vibrating device is fixedly connected to the guide trough and generates vibration. A flow guide is fixedly connected to the bottom wall of the trough and disperses the coal powder. Several flow guides are spaced apart along the length of the guide trough. A controller is communicatively connected to the vibrating device and a weight sensor, thereby continuously dispersing the coal powder as it flows from the inlet to the outlet, effectively preventing coal powder from adhering and clumping, thus improving the coal powder weighing accuracy of the vibratory feeding device.

Description

Technical Field

[0001] This utility model relates to the field of vibration feeding technology, and in particular to a vibration feeding device for unmanned laboratory systems. Background Technology

[0002] As a fossil energy source, coal requires sampling and crushing into powder before it can be put into use. Several portions of the coal powder are then weighed and analyzed using different types of tests. However, different batches of coal need to be analyzed before being put into use, which means that staff need to weigh the coal powder constantly, making the weighing work too arduous.

[0003] Current technology typically involves sampling and pulverizing coal, then feeding the coal powder into a vibrating hopper. A weighing crucible is installed at the hopper's outlet. During vibration, the hopper causes the coal powder to fall into the crucible. Once the target weight is reached, the hopper stops vibrating, completing the weighing process. However, during vibration, some coal powder adheres to each other, forming clumps. When the target weight is approaching, the weight of these clumps is unpredictable. If these clumps fall into the crucible, the total weight will exceed the target weight, leading to a decrease in weighing accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a vibrating feeder for an unmanned testing system, which can prevent coal from adhering and forming coal powder lumps when weighing coal powder, thereby improving the weighing accuracy of coal powder.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A vibrating feeder for an unmanned laboratory system is provided for feeding coal powder into a crucible, the crucible being placed on a weight sensor. The vibrating feeder for the unmanned laboratory system includes:

[0007] frame;

[0008] A feed trough is fixedly connected to the frame. The bottom wall of the feed trough is used to support the coal powder. An inlet is provided on one side wall along the length of the feed trough, and an outlet is provided on the other side wall. The crucible is located below the outlet. The feed trough is inclined relative to the ground along its own length, and the inlet is located above the outlet.

[0009] A vibration device, which is fixedly connected to the feed trough and is used to generate vibration;

[0010] A flow guide is fixedly connected to the bottom wall of the trough and is used to disperse the coal powder. Several of the flow guides are spaced apart along the length of the material guide trough.

[0011] The controller is communicatively connected to both the vibration device and the weight sensor.

[0012] Preferably, the vibration device includes a piezoelectric ceramic plate, which is communicatively connected to the controller.

[0013] Preferably, at least two piezoelectric ceramic sheets are spaced apart along the length of the feed channel.

[0014] Preferably, the vibration device further includes an adhesive layer, one side of which is bonded to the bottom wall of the tank, and the other side is bonded to the piezoelectric ceramic sheet.

[0015] Preferably, the vibration device further includes an elastic pad, which is fixedly connected to the end face of the piezoelectric ceramic sheet on the side away from the bottom wall of the tank.

[0016] Preferably, the guide member has an arc-shaped guide portion, which is disposed toward the inlet.

[0017] Preferably, at least two of the guide members are spaced apart along the width direction of the guide channel to form a row of guide members, and adjacent rows of guide members spaced apart along the length direction of the guide channel are staggered.

[0018] Preferably, the vibratory feeding device for the unmanned testing system further includes a support column, one end of which is elastically connected to the frame and the other end is fixedly connected to the guide trough.

[0019] Preferably, the vibratory feeding device for the unmanned testing system further includes a cleaning device, which includes a nozzle and an air pump. The nozzle is fixedly connected to the frame and faces the feed inlet. The nozzle is connected to the air outlet of the air pump. The air pump is fixedly connected to the frame and is communicatively connected to the controller.

[0020] Preferably, the vibratory feeding device for the unmanned testing system further includes a dust collection device, which includes a dust collection hood and a vacuum pump. The dust collection hood is fixedly connected to the frame and faces the discharge port. The dust collection hood is connected to the air extraction port of the vacuum pump. The vacuum pump is fixedly connected to the frame and is communicatively connected to the controller.

[0021] The beneficial effects of this utility model are:

[0022] The vibrating feeding device for an unmanned testing system provided by this utility model is fixedly connected to the frame via a guide trough. The bottom wall of the guide trough is used to support pulverized coal. An inlet is provided on one side wall along the length of the guide trough, and an outlet is provided on the other side wall. A crucible is located below the outlet. The guide trough is inclined relative to the ground along its length, with the inlet located above the outlet. This allows pulverized coal to be fed into the guide trough from the inlet, and the bottom wall of the guide trough to support the pulverized coal. A vibrating device is fixedly connected to the guide trough and generates vibration, causing the pulverized coal to vibrate and flow towards the outlet due to its own gravity. The coal powder flows into the crucible from the outlet, and the weight sensor can detect the weight of the coal powder in the crucible. When the coal powder in the crucible reaches the target weight, the controller can control the vibration device to stop vibrating, so that the vibrating feeder for the unmanned testing system can weigh the target weight of coal powder. By fixing the guide element to the bottom wall of the trough and using it to disperse the coal powder, and setting the guide element at intervals along the length of the feed trough, the coal powder is continuously dispersed by the guide element as it flows from the inlet to the outlet, effectively preventing the coal powder from adhering and clumping together, thereby improving the coal powder weighing accuracy of the vibrating feeder for the unmanned testing system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the vibrating feeder for an unmanned testing system provided in this embodiment of the utility model;

[0024] Figure 2 This is a top view of the guide trough provided in an embodiment of the present utility model;

[0025] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle.

[0026] In the picture:

[0027] 1. Rack;

[0028] 2. Feed chute; 21. Chassis bottom wall; 22. Feed inlet; 23. Feed outlet;

[0029] 3. Vibration device; 31. Piezoelectric ceramic sheet; 32. Adhesive layer; 33. Elastic pad;

[0030] 4. Flow guide; 41. Arc-shaped flow guide;

[0031] 5. Support pillar;

[0032] 6. Cleaning device; 61. Nozzle; 62. Air pump;

[0033] 7. Dust collection device; 71. Dust collection hood; 72. Vacuum pump. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] There are intermolecular attraction (van der Waals forces) between pulverized coal particles, especially when the particle size is small (micrometer scale), the van der Waals forces are significantly enhanced, promoting particle adsorption. Simultaneously, pulverized coal particles become charged due to friction, leading to electrostatic attraction between them, causing pulverized coal to adhere and form clumps. Therefore, continuously breaking up pulverized coal can effectively prevent it from clumping together. The following section combines... Figures 1 to 3 This invention provides a detailed description of the vibrating feeder for an unmanned laboratory system.

[0039] Figure 1A schematic diagram of the structure of the vibratory feeding device for an unmanned laboratory system provided in this embodiment is shown. Figure 2 A top view of the guide trough 2 provided in this embodiment is shown. Figures 1 to 2 As shown, the vibrating feeding device for an unmanned testing system provided in this embodiment is used to feed coal powder into a crucible. The crucible is placed on a weight sensor, which is used to detect the weight of the coal powder in the crucible. The device includes a frame 1, a feed trough 2, a vibration device 3, a flow guide 4, and a controller. The feed trough 2 is fixedly connected to the frame 1. The bottom wall 21 of the feed trough 2 is used to support the coal powder. An inlet 22 is opened on one side wall along the length of the feed trough 2, and an outlet 23 is opened on the other side wall. The crucible (not shown in the figure) is located below the outlet 23. The feed trough 2 is inclined relative to the ground along its own length, and the inlet 22 is located above the outlet 23. The vibration device 3 is fixedly connected to the feed trough 2 and is used to generate vibration. The flow guide 4 is fixedly connected to the bottom wall 21 and is used to disperse the coal powder. Several flow guides 4 are spaced apart along the length of the feed trough 2. The controller is communicatively connected to the vibration device 3 and the weight sensor. It should be noted that the vibrating feeder for the unmanned testing system provided in this embodiment can not only feed coal powder into the crucible, but also feed other powdered materials into the crucible, as long as the material can be fed from the feed inlet 22 to the bottom wall 21 of the tank.

[0040] The vibrating feeding device for an unmanned testing system provided in this embodiment is fixedly connected to the frame 1 via a feed trough 2. The bottom wall 21 of the feed trough 2 is used to support pulverized coal. An inlet 22 is provided on one side wall along the length of the feed trough 2, and an outlet 23 is provided on the other side wall. This allows pulverized coal to be fed into the feed trough 2 from the inlet 22, and the bottom wall 21 of the feed trough 2 to support the pulverized coal. The crucible is located below the outlet 23. The feed trough 2 is inclined relative to the ground along its length, with the inlet 22 located above the outlet 23. The vibrating device 3 is fixedly connected to the feed trough 2 and is used to generate vibration, thereby causing the pulverized coal to vibrate and move outward due to its own gravity. The coal powder flows through the inlet 23 and then falls into the crucible from the outlet 23. The weight of the coal powder in the crucible is detected by the weight sensor. When the coal powder in the crucible reaches the target weight, the controller can control the vibration device 3 to stop vibrating, so that the vibrating feeder for the unmanned testing system can weigh the target weight of coal powder. By fixing the guide 4 to the bottom wall 21 of the trough and using it to disperse the coal powder, and by setting the guide 4 at intervals along the length of the feed trough 2, the coal powder is continuously dispersed by the guide 4 as it flows from the inlet 22 to the outlet 23, effectively preventing the coal powder from adhering to clumps, thereby improving the coal powder weighing accuracy of the vibrating feeder for the unmanned testing system.

[0041] In this embodiment, the controller can be a programmable logic controller or a microcomputer, as long as it can communicate with the vibration device 3 and the weight sensor to know the weight of the coal powder in the crucible detected by the weight sensor and control the vibration device 3 to vibrate.

[0042] In this embodiment, the shape of the guide 4 is not limited and can be a frustum, cone, hemisphere or rhombus, as long as it can be fixedly connected to the bottom wall 21 of the tank and can collide with the coal powder block to break it up.

[0043] It should be noted that the method of fixing the flow guide 4 to the bottom wall 21 of the tank is not limited here. The flow guide 4 can be threaded, snapped, plugged into, or integrally formed with the bottom wall 21 of the tank. As long as the flow guide 4 is fixedly connected to the bottom wall 21 of the tank and can collide with the coal powder lumps to break them up, it is acceptable.

[0044] In this embodiment, the flow guide 4 has a first connecting hole, and the bottom wall 21 of the tank has a first fixing hole. A locking member passes through the first connecting hole and engages with the first fixing hole to fix the flow guide 4 to the bottom wall 21 of the tank. Specifically, the first connecting hole is a through hole, the first fixing hole is a threaded hole, and the locking member is a bolt. The bolt passes through the through hole and engages with the threaded hole to fix the flow guide 4 to the bottom wall 21 of the tank.

[0045] Figure 3 It shows Figure 1 A magnified view of a portion of point A in the diagram. (See diagram below.) Figure 3 Combination Figure 1 As shown, the vibration device 3 includes a piezoelectric ceramic plate 31, which is communicatively connected to a controller. The controller can charge the piezoelectric ceramic plate 31, causing it to vibrate at high frequency. This vibration causes the coal powder supported on the bottom wall 21 of the crucible to flow towards the outlet 23. The vibration of the piezoelectric ceramic plate 31 is relatively small, preventing coal powder splashing due to over-vibration. Specifically, the piezoelectric ceramic plate 31 is connected to an AC circuit. The controller is a programmable logic controller (PLC), which is connected to an AC relay. The AC relay is connected to the AC circuit. The PLC can control the opening and closing of the AC relay based on the weight information of the coal powder in the crucible fed back by the weight sensor. This allows the PLC to control the opening and closing of the AC circuit, indirectly controlling whether the piezoelectric ceramic plate 31 vibrates.

[0046] Continue as Figure 3 Combination Figure 1As shown, at least two piezoelectric ceramic plates 31 are spaced apart along the length of the feed chute 2, thereby enabling the overall vibration of the feed chute 2 and optimizing the conveying effect of pulverized coal. It should be noted that the number of piezoelectric ceramic plates 31 can be one, two, three, four, or even more. Those skilled in the art can reasonably select the number of piezoelectric ceramic plates 31 installed in the vibrating feeder for the unmanned testing system according to the actual vibration requirements of the feed chute 2.

[0047] Because vibratory feeding equipment used in unmanned testing systems often needs to weigh coal powder from several batches of coal, and the quality of different batches of coal often varies, when the coal powder is conveyed in the feed trough 2, some coal powder can easily remain in the gap between the piezoelectric ceramic plate 31 and the bottom wall 21 of the trough. When weighing the coal powder of another batch of coal, the coal powder from the two batches can easily mix and flow into the crucible, causing the test results of the coal powder to be invalid. To solve the above technical problem, the vibrating device 3 also includes an adhesive layer 32. One side of the adhesive layer 32 is bonded to the bottom wall 21 of the trough, and the other side is bonded to the end face of the piezoelectric ceramic plate 31 near the bottom wall 21 of the trough. This uses an adhesive to fill the gap between the piezoelectric ceramic plate 31 and the bottom wall 21 of the trough, preventing coal powder from remaining in the gap and causing different batches of coal powder to mix and flow into the crucible. It should be noted that the adhesive layer 32 can be made of high-temperature epoxy resin or silicone, so that the piezoelectric ceramic plate 31 can be bonded to the bottom wall 21 of the trough.

[0048] Continue as Figure 3 As shown, the vibration device 3 also includes an elastic pad 33, which is fixedly connected to the end face of the piezoelectric ceramic sheet 31 facing away from the bottom wall 21 of the tank. The elastic pad 33 shields the end face of the piezoelectric ceramic sheet 31 facing away from the bottom wall 21 of the tank, thereby preventing coal powder from impacting the piezoelectric ceramic sheet 31 during the flow process, reducing the mechanical impact on the piezoelectric ceramic sheet 31, and extending the service life of the piezoelectric ceramic sheet 31. Specifically, the elastic pad 33 can be a silicone pad or a rubber pad, which can reduce the impact of coal powder on the piezoelectric ceramic sheet 31 through its own elasticity.

[0049] like Figure 2 As shown, the guide member 4 has an arc-shaped guide section 41, which is positioned towards the feed inlet 22. This allows the arc-shaped guide section 41 to collide with the coal powder lumps, thereby more effectively breaking up the coal powder lumps and making the coal powder in the feed trough 2 flow evenly to the discharge outlet 23, significantly improving the coal powder breaking efficiency.

[0050] Continue as Figure 2As shown, at least two guide elements 4 are spaced apart along the width direction of the guide trough 2 to form a row of guide elements 4. Adjacent rows of guide elements 4 spaced apart along the length direction of the guide trough 2 are staggered, so that when the coal powder lumps collide with one guide element 4 and are not completely dispersed, they can continue to flow towards the discharge port 23 and collide with another guide element 4 until the coal powder lumps are completely dispersed, thereby further improving the coal powder dispersion efficiency.

[0051] like Figure 1 As shown, the vibratory feeding device for the unmanned testing system also includes a support column 5. One end of the support column 5 is elastically connected to the frame 1, and the other end is fixedly connected to the guide trough 2. This allows the support column 5 to absorb the vibration generated by the vibrating device 3, thereby reducing the impact of vibration on the guide trough 2 and preventing deformation of the guide trough 2 due to vibration. Specifically, the support column 5 and the frame 1 are elastically connected by a spring, so that the vibration generated by the vibrating device 3 can be absorbed by the spring, thus preventing the guide trough 2 from deforming due to rigid vibration.

[0052] Continue as Figure 1 As shown, the vibrating feeder for the unmanned testing system also includes a cleaning device 6. The cleaning device 6 includes a nozzle 61 and an air pump 62. The nozzle 61 is fixedly connected to the frame 1 and faces the feed inlet 22. The nozzle 61 is connected to the air outlet of the air pump 62. The air pump 62 is fixedly connected to the frame 1 and communicates with the controller. Thus, after the vibrating feeder for the unmanned testing system weighs a batch of coal powder, the controller can control the air pump 62 to supply air to the nozzle 61, so that the high-pressure gas blows through the guide chute 2 and cleans the guide chute 2.

[0053] Preferably, the vibratory feeding device for the unmanned testing system further includes a dust collection device 7, which includes a dust collection hood 71 and a vacuum pump 72. The dust collection hood 71 is fixedly connected to the frame 1 and faces the discharge port 23. The dust collection hood 71 is connected to the air extraction port of the vacuum pump 72. The vacuum pump 72 is fixedly connected to the frame 1 and communicates with the controller. Thus, when the high-pressure gas blows through the guide trough 2, causing the coal powder in the guide trough 2 to form coal dust, the controller can control the vacuum pump 72 to suck up the coal dust at the discharge port 23, preventing the coal dust from overflowing and polluting the environment.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vibrating feeder for an unmanned laboratory system, used to feed pulverized coal into a crucible, the crucible being placed on a weight sensor, characterized in that, The vibratory feeding device for the unmanned testing system includes: Rack (1); The material guide trough (2) is fixedly connected to the frame (1). The bottom wall (21) of the material guide trough (2) is used to carry the coal powder. The material guide trough (2) has an inlet (22) on one side wall along its length and an outlet (23) on the other side wall. The crucible is located below the outlet (23). The material guide trough (2) is inclined relative to the ground along its length. The inlet (22) is located above the outlet (23). A vibration device (3) is fixedly connected to the feed trough (2) and is used to generate vibration; A flow guide (4) is fixedly connected to the bottom wall (21) of the trough and is used to disperse the coal powder. Several flow guides (4) are spaced apart along the length of the material guide trough (2). The controller is communicatively connected to the vibration device (3) and the weight sensor.

2. The vibrating feeder for an unmanned laboratory system according to claim 1, characterized in that, The vibration device (3) includes a piezoelectric ceramic plate (31), which is communicatively connected to the controller.

3. The vibrating feeder for an unmanned laboratory system according to claim 2, characterized in that, At least two of the piezoelectric ceramic sheets (31) are spaced apart along the length of the feed channel (2).

4. The vibrating feeder for an unmanned laboratory system according to claim 2, characterized in that, The vibration device (3) also includes an adhesive layer (32), one side of which is bonded to the bottom wall (21) of the tank, and the other side is bonded to the end face of the piezoelectric ceramic sheet (31) near the bottom wall (21).

5. The vibrating feeder for an unmanned laboratory system according to claim 4, characterized in that, The vibration device (3) further includes an elastic pad (33), which is fixedly connected to the end face of the piezoelectric ceramic sheet (31) facing away from the bottom wall (21) of the tank. The elastic pad (33) shields the end face of the piezoelectric ceramic sheet (31) facing away from the bottom wall (21) of the tank.

6. The vibrating feeder for an unmanned laboratory system according to claim 1, characterized in that, The guide member (4) has an arc-shaped guide section (41) which is positioned toward the feed inlet (22).

7. The vibrating feeder for an unmanned laboratory system according to claim 6, characterized in that, At least two of the guide members (4) are spaced apart along the width direction of the guide channel (2) to form a row of guide members (4), and adjacent rows of guide members (4) spaced apart along the length direction of the guide channel (2) are staggered.

8. The vibrating feeder for an unmanned laboratory system according to any one of claims 1-7, characterized in that, The vibratory feeding device for the unmanned testing system also includes a support column (5), one end of which is elastically connected to the frame (1), and the other end is fixedly connected to the guide trough (2).

9. The vibrating feeder for an unmanned laboratory system according to any one of claims 1-7, characterized in that, The vibratory feeding device for the unmanned testing system also includes a cleaning device (6), which includes a nozzle (61) and an air pump (62). The nozzle (61) is fixedly connected to the frame (1) and faces the feed inlet (22). The nozzle (61) is connected to the air outlet of the air pump (62). The air pump (62) is fixedly connected to the frame (1) and communicates with the controller.

10. The vibrating feeder for an unmanned laboratory system according to claim 9, characterized in that, The vibratory feeding device for the unmanned testing system also includes a dust collection device (7), which includes a dust collection hood (71) and a vacuum pump (72). The dust collection hood (71) is fixedly connected to the frame (1) and faces the discharge port (23). The dust collection hood (71) is connected to the air extraction port of the vacuum pump (72). The vacuum pump (72) is fixedly connected to the frame (1) and communicates with the controller.

Images