A self-detecting and self-regulating safe pulverized coal conveying and distributing device

Abstract

The present invention relates to the field of coal powder transportation technology, specifically a self-detecting and self-adjusting safe type coal powder transportation and distribution device, comprising a branch pipe, a main conveying pipe and a conical guide plate, wherein the two branch pipes are distributed and fixedly connected to both sides of the bottom end of the main conveying pipe, the outer side of the end of the branch pipe is fixedly connected with a control monitoring part by bolts, the end of the main conveying pipe and the control monitoring part are respectively connected with connecting pipes by bolts, and wear detection parts are provided on both sides of the main conveying pipe. The present invention can regularly and automatically detect the degree of wear of the conical guide plate, and there is no need to disassemble the branch pipe and the main conveying pipe during detection, so that the detection is automatic, convenient, fast and accurate, and the rate of coal powder transported in the branch pipe can be stably and safely detected for a long time, so that the detection equipment can operate stably without being affected by the coal powder, so that the rate of coal powder transported in the branch pipe can be detected and monitored in real time, and can be conveniently adjusted and controlled in real time.

Description

Technical Field

[0001] The invention relates to the technical field of coal powder conveying, in particular to a self-detecting and self-regulating safe coal powder conveying and distributing device. Background Art

[0002] A pulverized coal distributor is a device used in direct-blowing pulverizing systems to evenly distribute air and pulverized coal to the subsequent primary air ducts. It is widely used in boiler systems in the power, chemical, textile, and petroleum industries, particularly in blast furnace coal injection systems, where it plays a crucial role. The pulverized coal distributor utilizes the principles of gas dynamics. Pulverized coal entering the main pipe is driven by the airflow and then directed by conical guide plates installed inside the main pipe. It then enters the branch pipe, achieving uniform delivery and distribution of the pulverized coal.

[0003] The existing Chinese patent publication number CN221939530U is a coal powder conveying pipeline. This existing technology includes a bellows, two connecting pipes with one end coaxially connected to the two ends of the bellows by welding, a metal braided sheath coaxially connected to the flange at the other end of the connecting pipe by welding, and a metal braided sheath sleeved on the outside of the bellows to play a protective role. The inner wall of the bellows is coaxially connected to the winding pipe, and the winding pipe and the flange are also connected by welding. The coal powder conveying pipeline provided by the utility model can be widely used in coal powder conveying pipelines. The winding pipe prevents direct contact between the coal powder and the bellows, prevents the bellows from being corroded by the coal powder, and extends the service life of the metal hose. At the same time, the bellows can absorb pipeline deformation and prevent pipeline vibration.

[0004] During use, the above-mentioned device and the existing coal powder distributor cannot automatically and conveniently detect the degree of wear of the conical guide plate arranged inside the pipe body during long-term use and whether there are large cracks and potholes on it, so that the conical guide plate cannot be replaced in time during use, and the coal powder transported by the coal powder distributor and the coal powder conveying pipeline cannot be fully and evenly distributed and transported to the interior of the two branches for transportation. Traditional equipment requires the equipment to be disassembled to detect the degree of wear of the internal conical guide plate. The detection process is time-consuming, labor-intensive and inefficient, and the flow rate detection equipment and sensors arranged internally are prone to malfunction and damage after long-term use in the flowing coal powder, making it impossible to conveniently detect and control the coal powder rate and flow rate transported by the branch pipe, so that the high flow rate and high conveying rate of coal powder during transportation are prone to danger. Therefore, a self-detecting and self-adjusting safe coal powder conveying and distribution device is needed to improve the above-mentioned problems. Summary of the Invention

[0005] In response to the problems in the prior art, the present invention provides a self-detecting and self-adjusting safe coal powder conveying and distribution device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a self-detecting and self-adjusting safe coal powder conveying and distribution device, including a branch pipe, a main conveying pipe and a conical guide plate, the two branch pipes are distributed and fixedly connected to the two sides of the bottom end of the main conveying pipe, the outer side of the end of the branch pipe is fixedly connected to the control monitoring part by bolts, the ends of the main conveying pipe and the control monitoring part are respectively connected to the connecting pipe by bolts, and wear detection parts are provided on both sides of the main conveying pipe. The wear detection parts are located above the branch pipes, and the outer end of the wear detection part is fixedly installed with a first installation part by bolts. The conical guide plate is fixedly installed inside the main conveying pipe by bolts, and the conical guide plate is located between two symmetrically distributed branch pipes. The wear detection part includes a sealing placement frame, and a sealing baffle is slidably inserted into the inner side of the sealing placement frame. A first electric push rod is fixedly installed at both ends of the inner side of the sealing placement frame, and the upper end of the first electric push rod is fixedly connected to the outer side of the upper end of the sealing baffle. A self-detection body is provided inside the sealing placement frame, and the self-detection body includes an angle adjustment device and a wear detection device, and the wear detection device is provided at the inner end of the angle adjustment device.

[0007] Preferably, the wear detection device includes a third mounting plate, a first track plate, a fixed connecting rod and a second track plate, the first track plate is symmetrically fixedly mounted on the outer end of the third mounting plate, the symmetrically arranged second track plate is fixedly connected to the outer side of the first track plate through a fixed connecting rod, the first track plate and the second track plate are respectively slidably mounted with a first sliding tooth plate and a second sliding tooth plate inside, the middle part of the outer end of the third mounting plate is rotatably mounted with a synchronous rotating rod, and control gears are fixedly mounted at both ends of the synchronous rotating rod, the control gear is located between the first sliding tooth plate and the second sliding tooth plate, and both side ends of the control gear are respectively engaged with the first sliding tooth plate The plate is meshed with the second sliding tooth plate, and the second motor is fixedly installed on the outer side of the third mounting plate through a mounting frame. The driving end of the second motor is fixedly connected to the middle of the outer end of a control gear. The upper end of the first sliding tooth plate and the outer side of the bottom end of the second sliding tooth plate are fixedly connected to the first connecting frame, and the outer end of the first connecting frame is fixedly connected to the fourth electric push rod, and the outer end of the fourth electric push rod is fixedly connected to the telescopic control spring, and the outer end of the telescopic control spring is fixedly connected to the pressure sensor, and the outer end of the pressure sensor is rotatably installed with a detection wheel through the mounting frame, and the bottom end of the first connecting frame is provided with a large crack detection mechanism.

[0008] Preferably, the large crack detection mechanism includes a second connecting frame, the bottom end of the second connecting frame is fixedly connected to the fifth electric push rod, the front end of the fifth electric push rod is fixedly connected to the mounting limit frame, the front end of the mounting limit frame is internally rotatably installed with a swing arm, the front end of the swing arm is fixedly connected to a conical detection scraper, second angle sensors are fixedly provided on both sides of the mounting limit frame, and the end of the swing arm that is rotatably clamped on the mounting limit frame is connected to the second angle sensor, and limit pressure springs are symmetrically fixedly installed at both ends of the swing arm, and the upper end of the limit pressure spring is fixedly connected to the mounting limit frame.

[0009] Preferably, a non-contact thickness measuring device and a controller are fixedly installed on the outer end of the third mounting plate, and the synchronous rotating rod is located between the non-contact thickness measuring device and the controller, the second connecting frame is fixedly connected to the bottom end of the first connecting frame, the angle adjustment device includes a second electric push rod, the front end of the second electric push rod is fixedly connected to the movable adjustment plate, the third electric push rod is fixedly installed at the side end corner of the movable adjustment plate away from the second electric push rod, the front end of the third electric push rod is fixedly connected to the second mounting plate, the second mounting plate is rotatably installed with a rotating adjustment arm at the middle of the side end away from the movable adjustment plate, the first motor and the first angle sensor are respectively fixedly installed at both ends of the side of the second mounting plate away from the movable adjustment plate, the driving end of the first motor is fixedly connected to the end of the rotating adjustment arm clamped on the second mounting plate, the other end of the second mounting plate is connected to the first angle sensor, and the rotating adjustment arm is fixedly connected to the middle of the inner end of the third mounting plate.

[0010] Preferably, the control and monitoring part includes a conveying connecting pipe, the front end of the conveying connecting pipe is fixedly connected to the conical conveying pipe, and protective sealing covers are fixedly installed on the middle parts of both sides of the conveying connecting pipe by bolts. A movable control panel is provided inside the conveying connecting pipe, and sliding card plates are fixedly connected on both sides of the movable control panel. The sliding card plates are slidably clamped on both sides of the conveying connecting pipe, and a sixth electric push rod is fixedly installed on both sides of the conveying connecting pipe. The front end of the sixth electric push rod is fixedly connected to the sliding card plate, and laser ranging sensors are fixedly installed on both sides of the conveying connecting pipe and at one end away from the sixth electric push rod. The sliding card plate is located directly in front of the laser ranging sensor, and the end of the movable control panel is fixedly connected to a conical partition adjustment plate, and the conical partition adjustment plate is located inside the conical conveying pipe.

[0011] Preferably, the conical delivery pipe and the conical baffle adjustment plate are both arranged in a conical shape, the sixth electric push rod, the sliding card plate and the laser ranging sensor are located inside the protective sealing cover, and the conical delivery pipe is fixedly connected to the branch pipe by bolts.

[0012] Preferably, the first mounting plate is fixedly installed on the outer end of the sealing placement frame by bolts, the sealing placement frame is fixedly installed on the side end of the main conveying pipe by bolts, and the angle adjustment device and the wear detection device are located inside the sealing placement frame, the angle adjustment device and the wear detection device are located on the outside of the conical guide plate, and the outer end of the conical detection scraper is set in a conical and smooth shape.

[0013] Preferably, the non-contact thickness measuring device is an eddy current thickness gauge.

[0014] Preferably, the non-contact thickness measuring device is a microwave thickness gauge.

[0015] Preferably, the non-contact thickness measuring device is an ultrasonic thickness gauge.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention provides an angle adjustment device and a wear detection device on both sides of the main conveying pipe. The various detection wheels in the wear detection device can quickly detect the thickness of the conical guide plate, and can determine whether the conical guide plate is severely worn and thinned during use. In addition, the various detection wheels can move on the conical guide plate, not only can multi-point detection be performed on the conical guide plate, but also continuous detection of specified areas on the conical guide plate can be performed. It can fully and accurately determine whether the conical guide plate is worn and thinned or has potholes during long-term use. The large crack detection mechanism provided in the wear detection device can assist in detecting whether large cracks and large potholes appear on the conical guide plate. At the same time, the large crack detection mechanism can scrape and remove the coal powder on the detection path of each detection wheel when moving on the conical guide plate, so that the detection wheel's detection result of the conical guide plate thickness is more accurate, so that the device can regularly and automatically detect the degree of wear of the conical guide plate. There is no need to disassemble the branch pipe and the main conveying pipe during detection, making the detection automatic, convenient, fast and accurate.

[0018] Second, the present invention can detect the coal powder transporting rate in the branch pipe stably and safely for a long time, so that the detection equipment can operate stably without being affected by the coal powder. The sixth electric push rod can control the sliding card to slide inside the conveying connecting pipe, thereby driving the movable control plate and the conical baffle adjustment plate to move. By adjusting and controlling the position of the conical baffle adjustment plate inside the conical conveying pipe and the degree of fit between the conical baffle adjustment plate and the inside of the conical conveying pipe, the gap between the conical conveying pipe and the conical baffle adjustment plate can be controlled, thereby controlling the coal powder transporting rate from the conveying connecting pipe. When the sixth electric push rod controls the sliding card to slide to different positions on both sides of the conveying connecting pipe, the laser ranging sensors arranged on the outside of both sides of the conveying connecting pipe can accurately measure the distance between the sliding card. The spacing is detected and monitored, so as to indirectly deduce the position of the mobile control plate and the conical baffle adjustment plate at this time, judge the position of the conical baffle adjustment plate inside the conical conveying pipe and the size of the gap between the conical baffle adjustment plate and the inside of the conical conveying pipe, and accurately know the coal powder transport rate in the conveying connecting pipe. Moreover, since the laser ranging sensor is arranged on the outside of the conveying connecting pipe, it can be unaffected by the coal powder transported in the conveying connecting pipe for several steps, and can operate stably for a long time, so that the coal powder transport rate in the branch pipe can be detected and monitored in real time, and can be adjusted and controlled in real time, so that the coal powder transport rate can be stably and conveniently detected for a long time. In the process of detection, the coal powder transport rate can be synchronously adjusted and controlled to ensure the safety of the process of transporting and adding coal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0021] Figure 2 This is a schematic diagram of the main body split structure in the present invention;

[0022] Figure 3 Schematic diagram of the internal structure of the branch pipe connection end in the present invention Figure 1 ;

[0023] Figure 4 This is a schematic structural diagram of the sealing baffle in the present invention in a raised state;

[0024] Figure 5 Schematic diagram of the internal structure of the branch pipe connection end in the present invention Figure 2 ;

[0025] Figure 6 Schematic diagram of the structure of the wear detection unit in the present invention;

[0026] Figure 7Schematic diagram of the self-detection main structure of the present invention;

[0027] Figure 8 A schematic diagram of the side view of the three-dimensional structure of the self-detection body in the present invention;

[0028] Figure 9 Schematic diagram of the angle adjustment device structure of the present invention;

[0029] Figure 10 Schematic diagram of the structure of the wear detection device in the present invention;

[0030] Figure 11 Schematic diagram of the structure of the auxiliary large crack detection mechanism in the present invention;

[0031] Figure 12 Schematic diagram of the control and monitoring unit structure of the present invention;

[0032] Figure 13 Schematic diagram of the split structure on both sides of the control and monitoring part in the present invention Figure 1 ;

[0033] Figure 14 Schematic diagram of the split structure on both sides of the control and monitoring part in the present invention Figure 2 ;

[0034] Figure 15 Schematic diagram of the internal structure of the tapered delivery pipe in the present invention Figure 1 ;

[0035] Figure 16 Schematic diagram of the internal structure of the tapered delivery pipe in the present invention Figure 2 .

[0036] In the figure: 1-connecting pipe, 2-wear detection part, 3-first mounting plate, 4-control monitoring part, 5-branch pipe, 6-main conveying pipe, 7-conical guide plate, 8-sealing baffle, 9-first electric push rod, 10-sealing placement frame, 11-self-detection body, 12-angle adjustment device, 13-wear detection device, 14-second electric push rod, 15-movable adjustment plate, 16-third electric push rod, 17-second mounting plate, 18-first motor, 19-rotating adjustment arm, 20-first angle sensor, 21-third mounting plate, 22-first track plate, 23-fixed connecting rod, 24-second motor, 25-control gear, 26-first sliding gear plate, 27-second track Road plate, 28-controller, 29-synchronous rotating rod, 30-large crack detection mechanism, 31-detection wheel, 32-pressure sensor, 33-telescopic control spring, 34-fourth electric push rod, 35-first connecting frame, 36-second sliding tooth plate, 37-contact thickness measuring device, 38-second connecting frame, 39-fifth electric push rod, 41-installation limit frame, 42-second angle sensor, 43-conical detection scraper, 44-swing arm, 45-limit pressing spring, 46-conical conveying pipe, 47-conical conveying connecting pipe, 48-protective sealing cover, 49-sixth electric push rod, 50-sliding card plate, 51-laser ranging sensor, 52-movement control board, 53-conical partition adjustment plate. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] like Figure 1-8 As shown, a self-detecting and self-adjusting safe coal powder conveying and distribution device of the present invention includes a branch pipe 5, a main conveying pipe 6 and a conical guide plate 7. The two branch pipes 5 are distributed and fixedly connected to both sides of the bottom end of the main conveying pipe 6. The outer side of the end of the branch pipe 5 is fixedly connected with a control monitoring part 4 by bolts. The ends of the main conveying pipe 6 and the control monitoring part 4 are respectively connected with connecting pipes 1 by bolts. Wear detection parts 2 are provided on both sides of the main conveying pipe 6. The wear detection parts 2 are located above the branch pipe 5. The outer end of the wear detection part 2 is fixedly installed with a first mounting plate 3 by bolts. The conical guide plate 7 is fixedly installed inside the main conveying pipe 6 by bolts, and the conical guide plate 7 is located between the two symmetrically distributed branch pipes 5. The wear detection parts 2 are located above the branch pipe 5. The outer end of the wear detection part 2 is fixedly installed with a first mounting plate 3 by bolts. The conical guide plate 7 is fixedly installed inside the main conveying pipe 6 by bolts. The conical guide plate 7 is located between the two symmetrically distributed branch pipes 5. The damage detection part 2 includes a sealing placement frame 10, and a sealing baffle 8 is slidably inserted into the inner side of the sealing placement frame 10. A first electric push rod 9 is fixedly installed at both ends of the inner side of the sealing placement frame 10. The upper end of the first electric push rod 9 is fixedly connected to the outer side of the upper end of the sealing baffle 8, and the sealing baffle 8 is provided to play a role of isolation and protection. A self-detection body 11 is provided inside the sealing placement frame 10. The self-detection body 11 includes an angle adjustment device 12 and a wear detection device 13. The wear detection device 13 is provided at the inner end of the angle adjustment device 12. The conical guide plate 7 is fixedly installed inside the main conveying pipe 6 by bolts. When the conical guide plate 7 is severely worn and thinned or large cracks and potholes appear, it can be easily replaced.

[0041] like Figure 10As shown, the wear detection device 13 includes a third mounting plate 21, a first track plate 22, a fixed connecting rod 23 and a second track plate 27. The first track plate 22 is symmetrically fixedly mounted on the outer end of the third mounting plate 21. The symmetrically arranged second track plate 27 is fixedly connected to the outer side of the first track plate 22 through the fixed connecting rod 23. The first sliding tooth plate 26 and the second sliding tooth plate 36 are respectively slidably mounted on the interior of the first track plate 22 and the second track plate 27. The middle part of the outer end of the third mounting plate 21 is rotatably connected to the synchronous rotation rod 29. The two ends of the rotating rod 29 are fixedly installed with control gears 25, which are located between the first sliding tooth plate 26 and the second sliding tooth plate 36. The two side ends of the control gear 25 are respectively meshed with the first sliding tooth plate 26 and the second sliding tooth plate 36. The outer side of the third mounting plate 21 is fixedly installed with a second motor 24 through a mounting bracket. The driving end of the second motor 24 is fixedly connected to the middle of the outer end of a control gear 25. The upper end of the first sliding tooth plate 26 and the outer side of the bottom end of the second sliding tooth plate 36 are fixedly connected to the first connecting bracket 35. The outer ends of the first connecting frame 35 are fixedly connected to the fourth electric push rod 34, and the outer ends of the fourth electric push rod 34 are fixedly connected to the telescopic control spring 33. The outer ends of the telescopic control spring 33 are fixedly connected to the pressure sensor 32. The outer ends of the pressure sensors 32 are rotatably mounted with detection wheels 31 through the mounting frame. The bottom ends of the first connecting frame 35 are provided with large crack detection mechanisms 30. The outer ends of the third mounting plates 21 are fixedly mounted with non-contact thickness measuring equipment 37 and controller 28, and the synchronous rotation rod 29 is located between the non-contact thickness measuring equipment 37 and the controller 28. The controller 28 is connected to each running electric push rod and other electrical equipment through wires to receive detection information and data and control the operation of each electrical equipment. Each detection wheel 31 can be accurately moved to the reserved detection position and then contact the outer end surface of the conical guide plate 7. The pressure detected by the pressure sensor 32 is judged to determine whether the conical guide plate 7 is worn and thinned. At the same time, each large crack detection mechanism 30 can move on the outer end surface of the conical guide plate 7, making the detection result more accurate.

[0042] like Figure 11As shown, the large crack detection mechanism 30 includes a second connecting frame 38, the bottom end of the second connecting frame 38 is fixedly connected to the fifth electric push rod 39, the front end of the fifth electric push rod 39 is fixedly connected to the installation limit frame 41, the front end of the installation limit frame 41 is internally rotatably installed with a swing arm 44, the front end of the swing arm 44 is fixedly connected to a conical detection scraper 43, and second angle sensors 42 are fixedly provided on both sides of the installation limit frame 41, and the end of the swing arm 44 that is rotatably clamped on the installation limit frame 41 is connected to the second angle sensor 42, and the two ends of the swing arm 44 are symmetrically fixedly installed with a limit pressing spring 45, the upper end of the limit pressing spring 45 is fixedly connected to the installation limit frame 41, and starting the fifth electric push rod 39 can make the installation limit frame 41 and the conical detection scraper 43 and other components move forward a long specified distance, so that the front end of each large crack detection mechanism 30 is fully pressed and fitted with the outer end surface of the conical guide plate 7, and then the fixed connecting rod 23 is started to indirectly control the first sliding gear The reciprocating movement of the plate 26 and the second sliding tooth plate 36 causes the conical detection scraper 43 to fit and reciprocate with the outer end surface of the conical guide plate 7. Since the outer end of the conical detection scraper 43 is conically and smoothly set, when there are large cracks and potholes on the outer end surface of the conical guide plate 7, the conical detection scraper 43 is inserted into the inside of the large crack or pothole during the movement, so that the moving conical detection scraper 43 compresses the limit pressing spring 45 at the corresponding position to make the swing arm 44 rotate inside the mounting limit frame 41. The rotation angle can be detected by the second angle sensor 42, and the detection result is transmitted to the controller 28, and then transmitted to the large screen of the detection terminal through the controller 28. The detection value can be used to determine whether there are large cracks or potholes on the outer end surface of the conical guide plate 7. The larger the rotation angle, the deeper the front end of the conical detection scraper 43 is inserted into the crack or pothole during the movement, which means that the crack or pothole is larger.

[0043] like Figure 9As shown, the second connecting frame 38 is fixedly connected to the bottom end of the first connecting frame 35, and the angle adjustment device 12 includes a second electric push rod 14, the front end of the second electric push rod 14 is fixedly connected to a movable adjustment plate 15, and the movable adjustment plate 15 is fixedly installed with a third electric push rod 16 at the end corner of the side end away from the second electric push rod 14, and the front end of the third electric push rod 16 is fixedly connected to a second mounting plate 17, and the second mounting plate 17 is rotatably installed with a rotating adjustment arm 19 at the middle part of the side end away from the movable adjustment plate 15. The first motor 18 and the first angle sensor 20 are fixedly installed at both ends of the second mounting plate 17 on the side away from the movable adjustment plate 15, respectively. The driving end of the first motor 18 is fixedly connected to the end of the rotating adjustment arm 19 clamped on the second mounting plate 17, and the other end of the second mounting plate 17 is connected to the first angle sensor 20. The rotating adjustment arm 19 is fixedly connected to the middle part of the inner end of the third mounting plate 21. The second electric push rod 14 and the third electric push rod 16 can control the wear detection device 13 to move forward twice continuously in a stable and precise manner.

[0044] like Figure 12-16As shown, the control and monitoring part 4 includes a conveying connecting pipe 47, the front end of the conveying connecting pipe 47 is fixedly connected to the tapered conveying pipe 46, and protective sealing covers 48 are fixedly installed in the middle of both sides of the conveying connecting pipe 47 by bolts. A moving control board 52 is provided inside the conveying connecting pipe 47, and sliding clamps 50 are fixedly connected on both sides of the moving control board 52. The sliding clamps 50 are slidably clamped on both sides of the conveying connecting pipe 47, and sixth electric push rods 49 are fixedly installed on both sides of the conveying connecting pipe 47. The front end of the sixth electric push rod 49 is fixedly connected to the sliding clamps 50. Laser ranging sensors 51 are fixedly installed on both sides of the conveying connecting pipe 47 and at one end away from the sixth electric push rod 49. The sliding clamps 50 are located directly in front of the laser ranging sensor 51. The end of the moving control board 52 is fixedly connected to a tapered baffle adjustment plate 53. The tapered baffle adjustment plate 53 is located inside the tapered conveying pipe 46. The sixth electric push rod 49 can control the sliding clamps 50 to slide inside the conveying connecting pipe 47, so that The movable control plate 52 and the conical baffle adjustment plate 53 are driven to move. By adjusting and controlling the position of the conical baffle adjustment plate 53 inside the conical conveying pipe 46 and the degree of fit between the conical baffle adjustment plate 53 and the inside of the conical conveying pipe 46, the gap between the conical conveying pipe 46 and the conical baffle adjustment plate 53 can be controlled, thereby controlling the rate at which the pulverized coal is conveyed from the conveying connecting pipe 47. When the sixth electric push rod 49 controls the sliding card plate 50 to slide to different positions on both sides of the conveying connecting pipe 47, the laser ranging sensor 51 arranged on the outside of both sides of the conveying connecting pipe 47 can accurately detect and monitor the distance between the sliding card plate 50, thereby indirectly inferring the position of the movable control plate 52 and the conical baffle adjustment plate 53 at this time, judging the position of the conical baffle adjustment plate 53 inside the conical conveying pipe 46 and the size of the gap between the conical baffle adjustment plate 53 and the inside of the conical conveying pipe 46, the pulverized coal conveying rate in the conveying connecting pipe 47 can be accurately known.

[0045] The conical conveying pipe 46 and the conical baffle adjustment plate 53 are both set in a conical shape, which is convenient for controlling the gap size between the conical baffle adjustment plate 53 and the conical conveying pipe 46. The sixth electric push rod 49, the sliding card plate 50 and the laser ranging sensor 51 are located inside the protective sealing cover 48. The conical conveying pipe 46 is fixedly connected to the branch pipe 5 by bolts for easy disassembly.

[0046] The first mounting plate 3 is fixedly mounted on the outer end of the sealing placement frame 10 by bolts, and the sealing placement frame 10 is fixedly mounted on the side end of the main conveying pipe 6 by bolts, and the angle adjustment device 12 and the wear detection device 13 are located inside the sealing placement frame 10, and the angle adjustment device 12 and the wear detection device 13 are located on the outside of the conical guide plate 7, which can facilitate the detection of the outer end face of the conical guide plate 7. The outer end of the conical detection scraper 43 is set in a conical and smooth shape, so that the conical detection scraper 43 can be inserted into the large cracks or potholes on the conical guide plate 7 when sliding close to the outer end face of the conical guide plate 7.

[0047] The non-contact thickness measuring device 37 is an eddy current thickness gauge, which uses the eddy current effect generated by the high-frequency electromagnetic field in the conical guide plate 7 to calculate the thickness by detecting the eddy current changes. It is a non-contact measurement, suitable for high-temperature environments, fast response, and suitable for dynamic monitoring. The non-contact thickness measuring device 37 can also be a microwave thickness gauge, which emits microwaves and measures the phase or amplitude changes after penetrating the conical guide plate 7. It is suitable for use when the material of the conical guide plate 7 is non-metallic such as ceramics and composite materials. It has strong penetrability and accurate and fast detection. The non-contact thickness measuring device 37 can also be an ultrasonic thickness gauge, which can achieve non-contact, high-precision and high-efficiency operation.

[0048] Working principle: During use, the flowing coal powder transported in by the main conveying pipe 6 is divided and diverted by the cutting of the conical guide plate 7, so that the coal powder flows into the inside of the branch pipe 5 for redirected distribution and transportation. During long-term use, the conical guide plate 7 is in constant contact and collision with the transported coal powder, which causes the conical guide plate 7 to be seriously worn, and it is very easy for the conical guide plate 7 to become asymmetrically thinned, pitted and have large cracks on both sides. When the conical guide plate 7 has the above-mentioned situation and cannot be detected and replaced in time, the coal powder transported by the main conveying pipe 6 cannot be accurately and evenly diverted to the two branch pipes 5 for transportation, and the amount of coal powder transported in the branch pipe 5 cannot be accurately controlled and transported. After the specified time of use, the main conveying pipe 6 is stopped and the coal powder is transported. To transport the pulverized coal in the conveying pipe 6 and the branch pipe 5, the first electric push rods 9 set on both sides of the main conveying pipe 6 are started. The first electric push rods 9 can drive the sealing baffle 8 to rise from the inside of the sealing placement frame 10. At this time, the sealing baffle 8 no longer seals the inner end of the sealing placement frame 10. Then the second electric push rods 14 set on both sides of the main conveying pipe 6 are started. The second electric push rods 14 drive the movable adjustment plate 15 to move inside the sealing placement frame 10. After moving a specified distance, the third electric push rod 16 is started. The third electric push rod 16 drives the second mounting plate 17 to continue to move forward, and the first motor 18 runs synchronously during the movement. The first motor 18 can drive the rotating adjustment arm 19 to rotate, thereby rotating the rotary The movable adjustment arm 19 can adjust and control the tilt angle of the wear detection device 13 as a whole, so that the third mounting plate 21 in the wear detection device 13 is parallel to the outer end surface of the conical guide plate 7, and the first angle sensor 20 provided can accurately detect and monitor the rotation angle of the rotating adjustment arm 19, and the detection information can be transmitted to the controller 28 in real time. The controller 28 then controls the operation of the first motor 18 in real time to make the rotation angle of the third mounting plate 21 accurate, ensuring that the third mounting plate 21 is in a parallel state with the outer end surface of the conical guide plate 7. When the third mounting plate 21 is in a parallel state with the outer end surface of the conical guide plate 7, and the wear is made parallel by the two-stage movement of the second electric push rod 14 and the third electric push rod 16 After the detection device 13 as a whole is discharged from the inside of the sealing placement frame 10 and moves to the preset detection position on the outside of the conical guide plate 7, each fourth electric push rod 34 is started synchronously, and the telescopic control spring 33 and the detection wheel 31 are driven forward by the fourth electric push rod 34 to move a predetermined distance, so that each detection wheel 31 moves to the preset detection position, and at this time the detection wheel 31 is squeezed and contacted with the side end surface of the conical guide plate 7. At this time, the pressure sensor 32 can detect the squeezing force and transmit the detected pressure value to the controller 28, and then transmit it to the large screen of the detection terminal through the controller 28. When the four detection wheels 31 in a wear detection device 13 move to the preset detection position and synchronously contact with the four points on the outer end surface of the conical guide plate 7,When the pressure value detected by the pressure sensor 32 is less than the preset minimum threshold value, it indicates that the side end surface of the conical guide plate 7 is severely worn and has become thinner, and the second motor 24 is started during the detection process, and a control gear 25 is driven by the second motor 24 and the reducer to rotate forward and reverse at a uniform speed. The synchronous rotation rod 29 is provided to enable the two control gears 25 to rotate forward and reverse at a synchronous speed. The forward and reverse rotating control gears 25 can make the first sliding tooth plate 26 and the second sliding tooth plate 36 slide stably along the inside of the first track plate 22 and the second track plate 27, so that the first sliding tooth plate 26 and the second sliding tooth plate 36 moving upward and downward can bring By moving each first connecting frame 35, the moving first connecting frame 35 can ultimately control each detection wheel 31 to move stably along the side end surface of the conical guide plate 7, and observe the pressure value detected by the pressure sensor 32. When the pressure value detected by the pressure sensor 32 fluctuates, it indicates that there is a deeper and larger pothole on the conical guide plate 7. In addition, multiple detection wheels 31 synchronously detect the conical guide plate 7, so that the detection result is more accurate. In addition, the non-contact thickness measuring device 37 provided in the wear detection device 13 can detect the thickness of the conical guide plate 7 without contact assistance, so that the wear degree of the conical guide plate 7 can be accurately judged.

[0049] A large crack detection mechanism 30 is provided on one side of each first connecting frame 35. When the large crack detection mechanism 30 is in operation, the detection wheel 31 must stop moving forward before it contacts the side end surface of the conical guide plate 7. That is, when the large crack detection mechanism 30 needs to be in operation, each detection wheel 31 will not move to the preset detection position and will stop. By starting the fifth electric push rod 39, the installation limit frame 41 and the conical detection scraper 43 and other components can be moved forward a longer specified distance, so that the front end of each large crack detection mechanism 30 is fully pressed against the outer end surface of the conical guide plate 7. The first and second sliding tooth plates 26 and 36 are in contact with each other, and the fixed connecting rod 23 is started to indirectly control the reciprocating movement of the first sliding tooth plate 26 and the second sliding tooth plate 36, so that the conical detection scraper 43 is in contact with the outer end surface of the conical guide plate 7 and moves back and forth. Since the outer end of the conical detection scraper 43 is in a conical and smooth configuration, when there are large cracks and potholes on the outer end surface of the conical guide plate 7, the conical detection scraper 43 is inserted into the inside of the large cracks or potholes during the movement, so that the moving conical detection scraper 43 compresses the limit pressing spring 45 at the corresponding position, so that the swing arm 44 is installed inside the limit frame 41. The second angle sensor 42 can detect the angle of rotation, and transmit the detection result to the controller 28, and then transmit it to the large screen of the detection terminal through the controller 28. The detection value can be used to judge whether there are large cracks or potholes on the outer end surface of the conical guide plate 7. The larger the rotation angle, the deeper the front end of the conical detection scraper 43 is inserted into the crack or pothole during the movement, which means the crack or pothole is larger. When the conical detection scraper 43 moves along the outer end surface of the conical guide plate 7 for detection, the conical guide plate 7 can be judged. The coal dust adhering to the outer end surface is scraped off, so the thickness can be detected more accurately by first detecting with the conical detection scraper 43 and then using the detection wheel 31. Therefore, the various conical detection scrapers 43 can not only detect larger cracks and potholes on the conical guide plate 7, but also realize the advance cleaning of the detection route of the detection wheel 31, so that the coal dust on the detection route of the detection wheel 31 is fully scraped off, so that the detection wheel 31 can accurately detect the degree of wear of the conical guide plate 7 during use, and can accurately judge whether the conical guide plate 7 is seriously worn and thinned after long-term use;

[0050] The sixth electric push rod 49 in the start-up control monitoring unit 4 can control the sliding card plate 50 to slide inside the conveying connecting pipe 47, thereby driving the movement control plate 52 and the conical baffle adjustment plate 53 to move. By adjusting and controlling the position of the conical baffle adjustment plate 53 inside the conical conveying pipe 46 and the degree of fit between the conical baffle adjustment plate 53 and the inside of the conical conveying pipe 46, the gap between the conical conveying pipe 46 and the conical baffle adjustment plate 53 can be controlled, thereby controlling the rate at which the coal powder is conveyed from the conveying connecting pipe 47. When the sixth electric push rod 49 controls the sliding card plate 50 to slide to different positions on both sides of the conveying connecting pipe 47, the laser distance measuring sensors arranged on the outside of the two sides of the conveying connecting pipe 47 are 51 can accurately detect and monitor the distance between itself and the sliding card plate 50, thereby indirectly inferring the position of the moving control plate 52 and the conical baffle adjustment plate 53 at this time, judging the position of the conical baffle adjustment plate 53 inside the conical conveying pipe 46 and the size of the gap between the conical baffle adjustment plate 53 and the inside of the conical conveying pipe 46, and can accurately know the coal powder transport rate in the conveying connecting pipe 47. Moreover, since the laser ranging sensor 51 is arranged on the outside of the conveying connecting pipe 47, it can be unaffected by the coal powder transported in the conveying connecting pipe 47 for several steps, and can operate stably for a long time, so that the coal powder transport rate in the branch pipe 5 can be detected and monitored in real time, and can be adjusted and controlled conveniently in real time.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-detecting and self-regulating safe pulverized coal conveying and distribution device, comprising a branch pipe (5), a main conveying pipe (6) and a conical guide plate (7), characterized in that: Two branch pipes (5) are distributed and fixedly connected to both sides of the bottom end of the main delivery pipe (6); the outer side of the end of the branch pipe (5) is fixedly connected to a control monitoring part (4) by bolts; wear detection parts (2) are provided on both sides of the main delivery pipe (6); the outer end of the wear detection part (2) is fixedly installed with a first mounting plate (3) by bolts; the conical guide plate (7) is fixedly installed inside the main delivery pipe (6) by bolts; the wear detection part (2) includes a sealing placement frame (10); the sealing placement frame (10) is provided with a self-detection body (11); the self-detection body (11) includes an angle adjustment device ( 12) and a wear detection device (13), the wear detection device (13) is arranged at the inner end of the angle adjustment device (12), the wear detection device (13) comprises a third mounting plate (21), a first track plate (22), a fixed connecting rod (23) and a second track plate (27), the first track plate (22) is symmetrically fixedly mounted on the outer end of the third mounting plate (21), the symmetrically arranged second track plate (27) is fixedly connected to the outer side of the first track plate (22) through the fixed connecting rod (23), and the interiors of the first track plate (22) and the second track plate (27) are respectively slidably connected and mounted with first sliding gears. The third mounting plate (21) is provided with a synchronous rotating rod (29) at the middle of the outer end thereof, and a control gear (25) is fixedly installed at both ends of the synchronous rotating rod (29). The control gear (25) is located between the first sliding tooth plate (26) and the second sliding tooth plate (36). Both side ends of the control gear (25) are respectively engaged with the first sliding tooth plate (26) and the second sliding tooth plate (36). The outer side of the third mounting plate (21) is fixedly provided with a second motor (24) through a mounting frame. The driving end of the second motor (24) is connected to a control gear (25). The middle of the outer end is fixedly connected, the upper end of the first sliding tooth plate (26) and the outer side of the bottom end of the second sliding tooth plate (36) are fixedly connected to the first connecting frame (35), the outer end of the first connecting frame (35) is fixedly connected to the fourth electric push rod (34), the outer end of the fourth electric push rod (34) is fixedly connected to the telescopic control spring (33), the outer end of the telescopic control spring (33) is fixedly connected to the pressure sensor (32), the outer end of the pressure sensor (32) is rotatably mounted with a detection wheel (31) through the mounting frame, and the bottom end of the first connecting frame (35) is provided with a large crack detection mechanism (30).

2. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 1, characterized in that: The large crack detection mechanism (30) comprises a second connecting frame (38), the bottom end of the second connecting frame (38) is fixedly connected to a fifth electric push rod (39), the front end of the fifth electric push rod (39) is fixedly connected to a mounting limit frame (41), a swing arm (44) is rotatably mounted inside the front end of the mounting limit frame (41), the front end of the swing arm (44) is fixedly connected to a conical detection scraper (43), second angle sensors (42) are fixedly arranged on both sides of the mounting limit frame (41), and the end of the swing arm (44) rotatably clamped on the mounting limit frame (41) is connected to the second angle sensor (42), and limit pressing springs (45) are symmetrically fixedly mounted on both ends of the swing arm (44), and the upper end of the limit pressing spring (45) is fixedly connected to the mounting limit frame (41).

3. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 2, characterized in that: The ends of the main conveying pipe (6) and the control and monitoring part (4) are respectively connected with connecting pipes (1) by bolts. The inner side of the sealing placement frame (10) is slidably plugged with a sealing baffle (8). The inner ends of the sealing placement frame (10) are fixedly installed with a first electric push rod (9). The upper end of the first electric push rod (9) is fixedly connected to the outer side of the upper end of the sealing baffle (8). The outer end of the third mounting plate (21) is fixedly installed with a non-contact thickness measuring device (37) and a controller (28), and the synchronous rotation rod (29) is located between the non-contact thickness measuring device (37) and the controller (28). The second connecting frame (38) is fixedly connected to the bottom end of the first connecting frame (35). The angle adjustment device (12) includes a second electric push rod (14). The front end of the second electric push rod (14) is fixedly connected to a movable adjustment plate (1 5), a third electric push rod (16) is fixedly installed at the corner of the side end of the movable adjustment plate (15) away from the second electric push rod (14), the front end of the third electric push rod (16) is fixedly connected to the second mounting plate (17), and a rotating adjustment arm (19) is rotatably installed at the middle of the side end of the second mounting plate (17) away from the movable adjustment plate (15), and a first motor (18) and a first angle sensor (20) are fixedly installed at both ends of one side of the second mounting plate (17) away from the movable adjustment plate (15), the driving end of the first motor (18) is fixedly connected to the end of the rotating adjustment arm (19) clamped on the second mounting plate (17), the other end of the second mounting plate (17) is connected to the first angle sensor (20), and the rotating adjustment arm (19) is fixedly connected to the middle of the inner end of the third mounting plate (21).

4. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 3 is characterized by: The control and monitoring part (4) includes a conveying connecting pipe (47), the front end of the conveying connecting pipe (47) is fixedly connected to a tapered conveying pipe (46), the middle parts of both sides of the conveying connecting pipe (47) are fixedly installed with protective sealing covers (48) by bolts, the interior of the conveying connecting pipe (47) is provided with a movable control board (52), both sides of the movable control board (52) are fixedly connected to sliding card boards (50), the sliding card boards (50) are slidably connected to both sides of the conveying connecting pipe (47), and both sides of the conveying connecting pipe (47) are fixedly connected to the sliding card boards (50). A sixth electric push rod (49) is fixedly installed, and the front end of the sixth electric push rod (49) is fixedly connected to the sliding card plate (50). Laser distance measuring sensors (51) are fixedly installed on both sides of the conveying connecting pipe (47) and at one end away from the sixth electric push rod (49). The sliding card plate (50) is located directly in front of the laser distance measuring sensor (51). The end of the mobile control board (52) is fixedly connected to a conical baffle adjustment plate (53), and the conical baffle adjustment plate (53) is located inside the conical conveying pipe (46).

5. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 4, characterized in that: The conical delivery pipe (46) and the conical baffle adjustment plate (53) are both arranged in a conical shape. The sixth electric push rod (49), the sliding card plate (50) and the laser distance sensor (51) are located inside the protective sealing cover (48). The conical delivery pipe (46) is fixedly connected to the branch pipe (5) by bolts.

6. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 5, characterized in that: The first mounting plate (3) is fixedly mounted on the outer end of the sealing placement frame (10) by means of bolts. The sealing placement frame (10) is fixedly mounted on the side end of the main delivery pipe (6) by means of bolts. The angle adjustment device (12) and the wear detection device (13) are located inside the sealing placement frame (10). The angle adjustment device (12) and the wear detection device (13) are located outside the conical guide plate (7). The outer end of the conical detection scraper (43) is arranged in a conical and smooth shape.

7. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 6, characterized in that: The non-contact thickness measuring device (37) is an eddy current thickness gauge.

8. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 6, characterized in that: The non-contact thickness measuring device (37) is a microwave thickness gauge.

9. The self-detecting and self-adjusting safe pulverized coal conveying and distribution device according to claim 6, characterized in that: The non-contact thickness measuring device (37) is an ultrasonic thickness gauge.

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