A powder discharge pipe unblocking device

Abstract

This invention discloses a device for unblocking powder-feeding pipes, belonging to the field of pipe unblocking technology. It includes a support frame, a vibration device, a detection device, and a control unit. The support frame is fixedly installed on the outside of the powder-feeding pipe along the powder-feeding direction. At least one vibration device is mounted on the support frame to apply vibration force to the powder-feeding pipe. The detection device is installed on the inner wall of the powder-feeding pipe to obtain the internal pressure value. The vibration device and the detection device are respectively connected to the control unit, which controls the working state of the vibration device based on the internal pressure value of the powder-feeding pipe. This unblocking device utilizes mechanically generated physical vibration to create force between the blockage and the powder-feeding pipe. The blockage deforms under regular oscillation, and under the influence of its own gravity, the blockage falls naturally, achieving the purpose of unblocking the pipe.

Description

Technical Field

[0001] This invention relates to the field of pipe dredging technology, specifically to a powder-draining pipe dredging device. Background Technology

[0002] Limestone desulfurization in thermal power plants is an essential process in the power industry both domestically and internationally. In actual production, a large amount of powdery waste is generated, mainly calcium carbonate and other substances. We can further collect and utilize or treat it in a pollution-free manner.

[0003] In actual production processes, the pipes used for waste discharge and collection are frequently clogged by dust, causing production line shutdowns or work stoppages to address the blockages. Currently, the waste discharge pipes use flexible pipes for connection in the middle, which also solves the problem of axial misalignment caused by the installation of the upper and lower pipe sections. When a blockage occurs, the flexible pipe is removed to clear the entire waste discharge pipe, and then reinstalled afterward. This entire process is time-consuming, labor-intensive, and very inconvenient. Furthermore, the large amount of limestone remaining inside the pipe for extended periods corrodes the inner wall, reducing the pipe's lifespan and increasing maintenance costs associated with pipe replacement. Therefore, a device is needed to effectively clear dust discharge pipes and prevent blockages. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a powder discharge pipe unblocking device, which controls the vibration frequency to regularly vibrate the blockage object, causing it to fall naturally and ensuring the unobstructed flow of the powder discharge pipe.

[0005] This invention is achieved through the following technical solution:

[0006] A powder discharge pipe unblocking device includes a support frame, a vibration device, a detection device, and a control unit.

[0007] The support frame is fixedly installed on the outside of the powder-feeding pipe along the powder-feeding direction. At least one vibration device is installed on the support frame. The vibration device is used to apply vibration force to the powder-feeding pipe. The detection device is installed on the inner wall of the powder-feeding pipe to obtain the internal pressure value of the powder-feeding pipe. The vibration device and the detection device are respectively connected to the control unit. The control unit is used to control the working state of the vibration device according to the internal pressure value of the powder-feeding pipe.

[0008] Preferably, the support frame is a closed annular frame structure, which is sleeved on the outside of the powder discharge tube.

[0009] Preferably, the support frame includes a ring frame, support legs, and a square ring frame;

[0010] The ring frame and the square ring frame are respectively fitted onto the upper and lower ends of the powder-feeding tube, and multiple support legs are circumferentially distributed around the powder-feeding tube. The upper and lower ends of the support legs are connected to the ring frame and the square ring frame, respectively.

[0011] Preferably, the upper end of the powder discharge pipe is connected to the feeding cylinder, the lower end of the powder discharge pipe is connected to the unloading cylinder, and the annular frame is fixedly sleeved on the outer wall of the unloading cylinder.

[0012] Preferably, a reinforcing member is provided between two adjacent support legs.

[0013] Preferably, the reinforcing member is a cross-arranged shear brace, and the end of the shear brace is fixedly connected to the support leg.

[0014] Preferably, the vibration device is a vibration pump, the output end of which is connected to a vibration tube. The output end of the vibration pump is connected to the outer wall of the powder drop pipe through a flange. The vibration tube is located inside the powder drop pipe and is in contact with the inner wall of the powder drop pipe in a natural state.

[0015] Preferably, the detection device is a pressure sensor, which is fixed on the inner wall of the powder discharge tube.

[0016] Preferably, the powder discharge tube is a flexible tube.

[0017] Preferably, the control unit is connected to a buzzer.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention provides a limestone dredging device. A vibration device is installed around the limestone dredging pipe via a support frame. The vibration device generates physical vibration, which is applied to the limestone dredging pipe. The vibration disperses the aggregated limestone, which then falls naturally under gravity, thus clearing the pipe. Simultaneously, a pressure sensor is installed inside the limestone dredging pipe to obtain the internal pressure. The control unit determines the blockage status of the limestone dredging pipe based on the pressure value and then determines whether to activate the vibration device, thereby forming a closed-loop control to keep the limestone dredging pipe unobstructed.

[0020] Furthermore, the vibration device is supported and fixed by a frame structure, which greatly reduces the weight of the support frame and reduces manufacturing costs.

[0021] Furthermore, shear bracing is used to fix the support frame, providing structural stability and thus increasing its service life. Attached Figure Description

[0022] Figure 1 This is a front view of the powder discharge pipe unblocking device of the present invention;

[0023] Figure 2This is a cross-sectional view of the powder discharge pipe unblocking device of the present invention;

[0024] Figure 3 This is a top view of the ring frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the C-type mounting plate of the present invention.

[0026] In the diagram: 1. Feeding cylinder, 2. Powder discharge pipe, 3. Discharge cylinder, 4. Ring frame, 5. Reinforcing parts, 6. C-type mounting plate, 7. Control box, 8. Buzzer, 9. Vibration pump, 10. Vibration tube, 11. Pressure sensor, 12. Mounting platform, 13. Fixing nut, 14. Locking nut. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 invention.

[0029] A powder discharge pipe unblocking device includes a support frame, a vibration device, a detection device, and a control unit.

[0030] The support frame is fixedly installed on the outside of the powder discharge pipe 2 along the powder discharge direction. At least one vibration device is installed on the support frame. The vibration device is used to apply vibration force to the powder discharge pipe 2. The detection device is installed on the inner wall of the powder discharge pipe 2 to obtain the internal pressure value of the powder discharge pipe. The control unit is used to determine the blockage state of the powder discharge pipe based on the internal pressure value of the powder discharge pipe. When the pressure value is greater than the set threshold, it indicates that the powder discharge pipe is blocked. The control unit makes a judgment based on the pressure value and starts the vibration device to apply vibration force to the powder discharge pipe. The vibration force disperses the blocked dust and allows it to fall naturally, thereby clearing the powder discharge pipe.

[0031] The aforementioned dust-draining device aims to solve the problem of pipes frequently being blocked by dust and unable to be discharged in a timely manner. This invention uses vibration as a starting point, employing physical methods to regularly vibrate the blockage, breaking up the clumps of dust and allowing them to fall naturally. At the same time, in order to achieve automatic unblocking of the dust-draining pipe, the controller obtains the internal pressure of the dust-draining pipe, judges the pressure data, and controls the working state of the vibration device based on the judgment result, thereby forming a closed-loop control to keep the dust-draining pipe unobstructed.

[0032] Example 1

[0033] Please see Figure 1-4 A powder discharge pipe unblocking device includes a feeding cylinder 1 and a discharge cylinder 3 arranged coaxially from top to bottom. A powder discharge pipe 2 is connected between the feeding cylinder 1 and the discharge cylinder 3. The powder discharge pipe 2 is a cloth bag made of high temperature and corrosion resistant materials such as industrial canvas bags or aramid bags. The feeding cylinder 1, the discharge cylinder 3, and the powder discharge pipe 2 together form the discharge pipe of the desulfurized limestone powder silo. The upper end of the powder discharge pipe 2 is connected to the lower end of the feeding cylinder 1 through a flange, and the lower end of the powder discharge pipe 2 is connected to the top end of the discharge cylinder 3 through a flange. When the pipe needs maintenance or replacement, the powder discharge pipe 2 can be removed by opening the flange.

[0034] The support frame includes a ring frame 4, support legs, and a square ring frame. The ring frame 4 is sleeved on the upper part of the outside of the unloading cylinder 3 and is fixedly connected to the unloading cylinder 3. The four support legs are evenly distributed around the ring frame and extend upward to the upper end of the powder drop pipe. The four support legs are evenly distributed around the powder drop pipe. C-shaped mounting plates 6 are provided at the four corner support legs and the ring frame 4 near the side wall of the unloading cylinder 3. The C-shaped mounting plate 6 has a transverse snap-fit ​​groove on the side near the unloading cylinder 3 and is adapted to the ring frame 4. The frame of the ring frame 4 is transversely snapped into the groove at this location. The C-shaped mounting plate 6 has a longitudinal groove on the side near the unloading cylinder 3 that can snap into the support leg. The groove is used to snap and fix the support leg.

[0035] A square ring frame is fixedly installed on the top of four support legs. The square ring frame is directly connected and fixed to the four support legs through flanges or nuts. The square ring frame is sleeved on the top outer side of the powder drop pipe 2. Mounting platforms 12 are welded on the left and right sides of the square ring frame, and mounting screw holes are opened on the mounting platforms 12. Vibration pumps 9 are installed on the mounting platforms 12 on both sides. The bottom of the vibration pumps 9 is provided with fixed legs that are connected to the mounting platforms 12. The fixed legs are fixed to the mounting screw holes of the mounting platforms 12 by bolts. Flanges are provided on the powder drop pipe 2 near the vibration pumps 9 on both sides. The output end of the vibration pumps 9 is connected to the powder drop pipe 2 through the flanges, and the output end of the vibration pumps 9 is also provided with flanges and connected and fixed to the flanges of the powder drop pipe 2.

[0036] The output end of the vibration pump 9 is connected to a vibration tube 10. The vibration tube 10 is in contact with the inner wall of the powder drop tube 2 in a natural vertical state. The vibration tube 10 generates a vibration frequency and acts on the blockage and the inner wall of the powder drop tube 2 to make it fall off. Pressure sensors 11 are arranged longitudinally on the side wall of the inner wall of the powder drop tube 2 away from the vibration tube 10. High-sensitivity piezoresistive pressure sensors or piezoelectric pressure sensors should be used. The pressure sensors 11 are connected to each other through a high-frequency data cable. The high-frequency data cable is wrapped with PBT material or a similar anti-corrosion and anti-static protective layer to prevent objects or dust from falling and damaging the data cable during long-term use.

[0037] The four corners of the C-shaped mounting plate 6 are provided with fixing nuts 13 that pass through and do not contact the transverse snap-fit ​​groove. The fixing nuts 13 pass through the C-shaped mounting plate 6 and are screwed into the screw holes of the unloading cylinder 3. This allows the C-shaped mounting plate 6 to be freely disassembled and the installation angle of the ring frame 4 to be adjusted. At the same time, the screw holes corresponding to the unloading cylinder 3 can also be manually adjusted and re-drilled.

[0038] A locking nut 14 is threaded through the middle of the C-type mounting plate 6, and the front end of the locking nut 14 abuts against the annular frame 4 in the transverse snap-fit ​​groove. The size of the locking nut 14 is at least twice that of the fixing nut 13. Tightening the locking nut 14 can further reinforce the connection between the annular frame 4 and the C-type mounting plate 6.

[0039] The four corner support legs of the ring frame 4 are equipped with reinforcement parts 5 on both sides. The reinforcement parts 5 are detachable scaffolding. The connection between them and the support legs of the ring frame 4 is made by nuts. The reinforcement parts 5 are arranged in a cross pattern. The intersection of two reinforcement parts 5 is fixed by scaffolding locking buckles. The reinforcement parts 5 further fix the frame of the ring frame 4. At the same time, the detachable scaffolding also makes it easy to adjust the ring frame 4.

[0040] A buzzer 8 is installed on the left support leg of the ring frame 4 and connected to the control unit. The buzzer 8 is a sharp warning horn. When the pressure sensor 11 exceeds the preset pressure value, the control unit outputs an alarm signal and the buzzer 8 emits a warning sound. A control box 7 is installed on the right support leg of the ring frame 4. The control unit is located in the control box. The control unit is electrically connected to the vibration pump 9, the pressure sensor 11 and the buzzer 7 respectively. The signal output terminal of the pressure sensor 11 is connected to the control unit. The control unit is used to receive the electrical signals generated by the vibration pump 9, the buzzer 8 and the pressure sensor 11 when they are working, and to control the electrical components.

[0041] Working principle: In use, the ring frame 4 is fitted onto the outer wall of the unloading cylinder 3, and the ring frame 4 is fixed to the pipe by locking the C-shaped mounting plate 6. Then, the reinforcing parts 5 are cross-installed between the support legs of the ring frame 4 for further reinforcement. When the dust falls naturally through the combination of the feeding cylinder 1, the dust discharge pipe 2 and the unloading cylinder 3, when the dust discharge pipe 2 is blocked due to excessive discharge, the blockage will press the pressure sensor 11. The sensor sends an electrical signal to the control box 7 and simultaneously turns on the buzzer 8 to warn. At this time, the vibration pump 9 is turned on. The output end of the vibration pump 9 drives the vibration tube 10 to generate a vibration frequency, which continuously vibrates between the blockage and the inner wall of the dust discharge pipe 2. Since the dust discharge pipe 2 is a cloth bag, the blockage and vibration will expand the circumference of the inner wall. At the same time, the blockage will fall naturally into the unloading cylinder 3 under the action of gravity and vibration frequency, completing the waste removal work.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A powder discharge pipe unblocking device, characterized in that, Includes support frame, vibration device, detection device and control unit; The support frame is fixedly installed on the outside of the powder drop tube (2) along the powder drop direction. At least one vibration device is installed on the support frame. The vibration device is used to apply vibration force to the powder drop tube (2). The detection device is installed on the inner wall of the powder drop tube (2) to obtain the internal pressure value of the powder drop tube. The vibration device and the detection device are respectively connected to the control unit. The control unit is used to control the working state of the vibration device according to the internal pressure value of the powder drop tube. The support frame includes a ring frame (4), support legs, and a square ring frame; The square ring frame and the ring frame (4) are respectively fitted on the upper and lower ends of the powder drop tube, and multiple support legs are circumferentially distributed around the powder drop tube. The upper and lower ends of the support legs are respectively connected to the square ring frame and the ring frame. A reinforcing member is provided between two adjacent support legs. The reinforcing member is a cross-arranged shear brace, and the end of the shear brace is fixedly connected to the support leg. The upper end of the powder discharge pipe is connected to the feeding cylinder (1), and the lower end of the powder discharge pipe is connected to the unloading cylinder (3). The annular frame (4) is fixedly sleeved on the outer wall of the unloading cylinder (3). The vibration device is a vibration pump. The output end of the vibration pump (9) is connected to a vibration tube (10). The output end of the vibration pump is connected to the outer wall of the powder drop tube through a flange. The vibration tube (10) is located inside the powder drop tube and is in contact with the inner wall of the powder drop tube (2) in a natural state. The powder discharge tube is a flexible tube; The output end of the vibration pump drives the vibration tube to generate a vibration frequency, which continuously vibrates between the blockage object and the inner wall of the powder drop tube. The vibration will expand the circumference of the inner wall of the powder drop tube (2).

2. The powder discharge pipe unblocking device according to claim 1, characterized in that, The support frame is a closed ring structure that is fitted over the powder discharge tube.

3. The powder discharge pipe unblocking device according to claim 1, characterized in that, The detection device is a pressure sensor, which is fixed on the inner wall of the powder discharge tube.

4. The powder discharge pipe unblocking device according to claim 1, characterized in that, The control unit is connected to a buzzer.

Images