A device for detecting blockage of a waste soil and rock transportation chute

Abstract

The utility model discloses a kind of waste soil and stone transport chute bin material blocking detection devices, including chute bin, protective box, pressure detection tool, material level meter, control device, the protective box is provided with the pressure detection tool of installation in bin wall outside, control device, the material level meter respectively installs in the east and west of chute bin feed inlet, the pressure detection tool further include elastic rubber plate, mounting plate, detection rack, telescopic adjusting ring, pressure sensor.The utility model's function is that the device is installed pressure detection tool in the both sides of easy material blocking section of chute bin bending place to carry out pressure detection, and the feedback of material level meter on chute bin feed inlet is combined to determine whether material blocking occurs in chute discharging process, if material blocking, stop alarm, otherwise, continue to run;Its detection result is accurate, also convenient for user to combine possible occurrence with on-site treatment measures, make determination and make early warning treatment.

Description

Technical Field

[0001] This utility model patent belongs to the technical field of material blockage detection equipment, specifically relating to a material blockage detection device for a waste soil and rock transport chute. Background Technology

[0002] Currently, both mining and construction companies equip their crushing systems with large-piece waste rock crushing and transfer facilities. The extracted large ore or stone is crushed 2-3 times to obtain the target product. During this process, belt conveyors are used to transfer the stone multiple times through hoppers and chutes. However, due to the large and irregular size of the stone pieces, chute blockages frequently occur and cannot be detected and controlled in time. This prevents the stone from being discharged from the hopper through the blocked chutes, causing it to accumulate higher and higher. This results in two problems: firstly, it can cause crushing damage to the conveyor belts and other equipment above; secondly, it can cause the stone to be pushed out of the hopper, resulting in safety accidents such as equipment damage and personal injury, thus affecting normal production operations. Existing chute blockage detection mainly relies on rotary resistance level gauges and diaphragm level gauges. Both types of blockage detection switches can cause false alarms due to material quality and belt drop point deviation, resulting in a complete shutdown.

[0003] Therefore, this utility model proposes a device for detecting blockage in waste soil and rock transport chutes. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a material blockage detection device for waste soil and rock transport chutes. This device uses pressure detection fixtures installed on both sides of the easily blocked section at the bend of the chute to perform pressure detection, and combines this with feedback from the material level gauge at the chute inlet to determine whether material blockage has occurred during the chute's material discharge process. If blockage is detected, the machine will stop and alarm; otherwise, it will continue to operate. The detection results are accurate, and it also allows users to combine potential situations with on-site handling measures to make judgments and provide early warnings.

[0005] This utility model is achieved through the following technical solution: a blockage detection device for a waste rock transport chute, comprising a chute, a protective box, a pressure detection fixture, a level gauge, and a control device. Protective boxes are installed on the east and west outer sides of the chute wall at the bends where blockage is prone to occur. The protective boxes contain the pressure detection fixture and control device installed on the outer side of the chute wall. The level gauges are respectively installed on the east and west sides of the chute inlet. The pressure detection fixture further includes an elastic rubber plate, a mounting plate, a detection frame, a telescopic adjustment ring, and pressure sensors. The elastic rubber plate is bolted to the detection hole in the chute wall via the mounting plate on its outer side, and the inner protrusion of the elastic rubber plate can fill the detection hole. The detection frame is installed on the chute wall outside the detection hole, and a gap is provided between the inner side of the detection frame and the outer side of the elastic rubber plate. Several pressure sensors are evenly installed in a ring on the detection frame via the telescopic adjustment ring.

[0006] Preferably, the control device further includes a pressure detection processor, a level gauge, a terminal block, a power interface, and an alarm. The pressure detection processor is electrically connected to the level gauge, the terminal block, the power interface, the alarm, and the pressure sensor. The power interface provides power to the pressure detection processor, the level gauge, the terminal block, the alarm, and the pressure sensor by connecting to a power source.

[0007] Preferably, the pressure detection processor is configured as a PLC integrated industrial control board.

[0008] Preferably, the pressure sensor is a column-type pressure sensor.

[0009] Preferably, the telescopic adjustment ring is installed in the screw hole of the testing frame through the external thread on its outer side, the telescopic adjustment ring has a pressure sensor mounting hole in its center, and the telescopic adjustment ring has an anti-slip rotating cap at its rear end.

[0010] Preferably, the external thread at the rear end of the telescopic adjustment ring is provided with a scale.

[0011] The beneficial effects of this utility model are: This device detects pressure by installing pressure detection fixtures on both sides of the easily clogged section at the bend of the chute. It then combines this with feedback from the material level gauge at the chute inlet to determine if a blockage has occurred during material discharge. If a blockage is detected, the machine stops and an alarm sounds; otherwise, it continues operating. The device's design incorporates a gap to allow sufficient space for the elastic rubber plate to deform, and also facilitates user adjustment of the distance between the pressure sensor's front end and the outer side of the elastic rubber plate. This ensures that the pressure measurement function is triggered promptly when the elastic rubber plate deforms. The device also includes a telescopic adjustment ring. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0013] Figure 1 This is a structural diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This utility model Figure 3 Isometric view of section A; Figure 5 This utility model Figure 4 A partial schematic diagram of B in the diagram; Figure 6 This utility model Figure 4 A partial schematic diagram of C in the middle; The attached diagram lists the components represented by each number as follows: 1. Chute hopper; 2. Protective box; 3. Elastic rubber sheet; 4. Mounting plate; 5. Detection frame; 6. Telescopic adjustment ring; 7. Pressure sensor; 8. Bolt structure; 9. Detection hole; 10. Protrusion; 11. Gap; 12. Pressure detection processor; 13. Wiring terminal; 14. Power interface; 15. Alarm; 16. External thread; 17. Screw hole; 18. Mounting hole; 19. Anti-slip rotating cap; 20. Scale. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example

[0015] like Figures 1 to 6 As shown, the existing technology in this embodiment has the following problems: The inventors found that the existing chute blockage detection mainly uses rotary level gauges and diaphragm level gauges. Both types of blockage detection switches will cause false alarms due to the quality of the material and the deviation of the conveyor belt drop point, resulting in a complete shutdown.

[0016] Therefore, the inventor provides a waste rock transportation chute blockage detection device, including a chute 1, a protective box 2, a pressure detection fixture, a level gauge (not shown in the figure), and a control device. The protective box 2 is installed on the east and west outer sides of the chute wall at the bend where blockage is prone to occur. The protective box 2 is equipped with a pressure detection fixture and a control device installed on the outer side of the chute wall. The level gauges are installed on the east and west sides of the feed inlet (not shown in the figure) of the chute 1. The pressure detection fixture also includes an elastic rubber plate 3, a mounting plate 4, a detection frame 5, a telescopic adjustment ring 6, and a pressure sensor 7. The elastic rubber plate 3 is mounted on the detection hole 9 of the chute wall by the mounting plate 4 on its outer side through a bolt structure 8, and the inner protrusion 10 of the elastic rubber plate 3 can fill the detection hole 9. The detection frame 5 is installed on the chute wall outside the detection hole 9, and a gap 11 is provided between the inner side of the detection frame 5 and the outer side of the elastic rubber plate 3. Several pressure sensors 7 are evenly installed in a ring on the detection frame 5 through the telescopic adjustment ring 6. Its effects are as follows: The device performs pressure detection by installing pressure detection fixtures on both sides of the easily blocked section at the bend of the chute 1, and combines the feedback from the material level gauge at the feed inlet of the chute 1 to determine whether a blockage occurs during the material discharge process. If a blockage occurs, the machine will stop and alarm; otherwise, it will continue to operate. The design of the gap 11 in the device allows sufficient space for the deformation of the elastic rubber plate 3, and also facilitates the user to adjust the distance between the front end of the pressure sensor 7 and the outer side of the elastic rubber plate 3, so that the pressure measurement function can be triggered in time when the elastic rubber plate 3 deforms. The device also includes a telescopic adjustment ring 6.

[0017] Furthermore, the control device also includes a pressure detection processor 12, a level gauge, a terminal block 13, a power interface 14, and an alarm 15. The pressure detection processor 12 is electrically connected to the level gauge, the terminal block 13, the power interface 14, the alarm 15, and the pressure sensor 7. The power interface 14 provides power to the pressure detection processor 12, the level gauge, the terminal block 13, the alarm 15, and the pressure sensor 7 by connecting to a power source.

[0018] Furthermore, the pressure detection processor 12 is configured as a PLC integrated industrial control board.

[0019] Furthermore, the pressure sensor 7 is configured as a column-type pressure sensor 7.

[0020] Furthermore, the telescopic adjustment ring 6 is installed in the screw hole 17 of the testing frame 5 through the external thread 16 on its outer side. The telescopic adjustment ring 6 has a mounting hole 18 for the pressure sensor 7 at its center, and an anti-slip rotating cap 19 is provided at the rear end of the telescopic adjustment ring 6.

[0021] Furthermore, the external thread 16 at the rear end of the telescopic adjustment ring 6 is provided with a scale 20; this structure is designed to improve the accuracy of adjusting the telescopic extension of the pressure sensor 7. Example

[0022] Based on the above embodiments, the inventors also designed the following alarm logic based on field tests: Pressure acquisition: The pressure collected by the four pressure sensors on each side is averaged to obtain an average value. Then, the values ​​on the east and west sides are compared with the original values ​​to determine whether there is a blockage. The judgment logic is shown in Table 1 below: Table 1

[0023] Logical Association: A logical association is established with the level gauge in the chute. The level gauge triggers an alarm, triggered by both the level gauge and the pressure sensor. Based on the alarm, the PLC can activate auxiliary facilities to clear blockages or shut down the system. The judgment logic is shown in Table 2 below: Table 2

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting a blockage of a waste earth and rock transport chute, characterised in that: The chute (1) includes a chute (1), a protective box (2), a pressure detection fixture, a level gauge, and a control device. Protective boxes (2) are installed on the east and west outer sides of the chute wall at the bend where material is easily blocked. The protective boxes (2) contain a pressure detection fixture and a control device installed on the outside of the chute wall. The level gauges are installed on the east and west sides of the chute (1) inlet. The pressure detection fixture also includes an elastic rubber plate (3), a mounting plate (4), a detection frame (5), a telescopic adjustment ring (6), and a pressure sensor. (7) The elastic rubber plate (3) is mounted on the detection hole (9) of the warehouse wall by the mounting plate (4) on its outer side through the bolt structure (8) and the inner protrusion (10) of the elastic rubber plate (3) can fill the detection hole (9). The detection frame (5) is mounted on the warehouse wall outside the detection hole (9) and a gap (11) is provided between the inner side of the detection frame (5) and the outer side of the elastic rubber plate (3). Several pressure sensors (7) are evenly installed in a ring on the detection frame (5) through the telescopic adjustment ring (6).

2. The device for detecting the blockage of the waste soil and stone transportation chute according to claim 1, characterized in that: The control device also includes a pressure detection processor (12), a level gauge, a terminal block (13), a power interface (14), and an alarm (15). The pressure detection processor (12) is electrically connected to the level gauge, the terminal block (13), the power interface (14), the alarm (15), and the pressure sensor (7). The power interface (14) provides power to the pressure detection processor (12), the terminal block (13), the alarm (15), the level gauge, and the pressure sensor (7) by connecting to a power source.

3. The device for detecting the blockage of the waste soil and stone transportation chute according to claim 2, characterized in that: The pressure detection processor (12) is configured as a PLC integrated industrial control board.

4. The device for detecting the blockage of the waste soil and stone transportation chute according to claim 1, characterized in that: The pressure sensor (7) is configured as a column-type pressure sensor (7).

5. The device for detecting the blockage of the waste soil and stone transportation chute according to claim 1, characterized in that: The telescopic adjustment ring (6) is installed in the screw hole (17) of the testing frame (5) through the external thread (16) on its outer side. The telescopic adjustment ring (6) has a mounting hole (18) for the pressure sensor (7) at its center and an anti-slip rotating cap (19) at its rear end.

6. The device for detecting the blockage of the waste soil and stone transportation chute according to claim 5, characterized in that: The telescopic adjustment ring (6) has a scale (20) in the external thread (16) at the rear end.

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