Self-detection and self-adjustment safety type pulverized coal conveying and distributing device

Abstract

The invention relates to the technical field of pulverized coal conveying, in particular to a self-detection and self-adjustment safety type pulverized coal conveying and distributing device which comprises branch guide pipes, a main conveying pipe and a conical guide plate, the two branch guide pipes are fixedly connected to the two sides of the bottom end of the main conveying pipe, and the outer sides of the ends of the branch guide pipes are fixedly connected with control monitoring parts through bolts; the ends of the main conveying pipe and the control monitoring part are connected with connecting pipes through bolts correspondingly, and abrasion detection parts are arranged on the two sides of the main conveying pipe. The abrasion degree of the conical guide plate can be regularly and automatically detected, the branch guide branch pipes and the main conveying pipe do not need to be disassembled during detection, detection is automatic, convenient, rapid and accurate, the speed of pulverized coal conveyed in the branch guide branch pipes can be stably and safely detected for a long time, detection equipment can stably operate without being influenced by the pulverized coal, and the detection efficiency is improved. The speed of pulverized coal conveyed in the branch guide branch pipes can be detected and monitored in real time, and the pulverized coal 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-adjusting safe coal powder conveying and distributing device. Background Art

[0002] The pulverized coal distributor is a device used in the direct-blowing pulverizing system to evenly distribute the air and pulverized coal to the subsequent primary air ducts. It is widely used in boiler systems in the power, chemical, textile, petroleum and other industries, especially in blast furnace coal injection systems, where it plays a vital role. The pulverized coal distributor uses the principle of gas mechanics. The pulverized coal entering from the main pipe is driven by the airflow and passes through the partition and diversion of the conical guide plate set inside the main pipe, and then enters the branch pipe to achieve uniform transportation and distribution of the pulverized coal.

[0003] The existing Chinese patent publication number is CN221939530U, which is a coal powder conveying pipeline. The existing technology includes a bellows, two connecting pipes 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 protective metal braided sheath sleeved on the outside of the bellows. 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 coal powder and the bellows, prevents the bellows from being corroded by 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 currently used 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, 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 inside of the two branch pipes for transportation. Traditional equipment needs to be disassembled to detect the degree of wear of the internally arranged conical guide plate. The detection process is time-consuming, labor-intensive and inefficient. In addition, the flow rate detection equipment and sensors arranged inside 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 view of 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 type coal powder conveying and distribution device, including a branch guide pipe, a main conveying pipe and a conical guide plate, two branch guide 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 guide pipe is fixedly connected with a control monitoring part by bolts, the ends of the main conveying pipe and the control monitoring part are respectively connected with connecting pipes by bolts, and wear detection parts are arranged on both sides of the main conveying pipe, the wear detection parts are located above the branch guide 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 guide pipes. The wear detection part includes a sealing placement frame, and a sealing baffle plate 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 plate. A self-detection body is arranged 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 arranged at the inner side 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, a synchronous rotating rod is rotatably mounted at the middle of the outer end of the third mounting plate, 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 mounted with the first sliding tooth plate The plate is meshingly connected with the second sliding tooth plate, and a second motor is fixedly installed on the outer side of the third mounting plate through a mounting frame, and a driving end of the second motor is fixedly connected to the middle part of the outer side end of a control gear, and an upper end of the first sliding tooth plate and an outer side of a bottom end of the second sliding tooth plate are fixedly connected with a first connecting frame, and an outer end of the first connecting frame is fixedly connected with a fourth electric push rod, and an outer end of the fourth electric push rod is fixedly connected with a telescopic control spring, and an outer end of the telescopic control spring is fixedly connected with a pressure sensor, and a detection wheel is rotatably installed on the outer end of the pressure sensor, and a large crack detection mechanism is arranged at the bottom end of the first connecting frame.

[0008] Preferably, the large crack detection mechanism includes a second connecting frame, the bottom end of the second connecting frame is fixedly connected to a fifth electric push rod, the front end of the fifth electric push rod is fixedly connected to a mounting limit frame, a swing arm is rotatably installed inside the front end of the mounting limit frame, 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 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, and the angle adjustment device includes a second electric push rod, a movable adjustment plate is fixedly connected to the front end of the second electric push rod, a 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, a rotating adjustment arm is rotatably installed at the middle part of the side end of the second mounting plate away from the movable adjustment plate, the first motor and the first angle sensor are respectively fixedly installed at both ends of one 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 part 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 a conical conveying pipe, protective sealing covers are fixedly installed on the middle parts of both sides of the conveying connecting pipe by bolts, a moving control board is arranged inside the conveying connecting pipe, sliding clamps are fixedly connected on both sides of the moving control board, the sliding clamps are slidably clamped on both sides of the conveying connecting pipe, 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 clamp, 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 clamp is located directly in front of the laser ranging sensor, the end of the moving control board is fixedly connected to a conical baffle adjustment plate, and the conical baffle 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 sets 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 seriously worn and thinned during use. In addition, each detection wheel can move on the conical guide plate, not only can multi-point detection be achieved on the conical guide plate, but also continuous detection of a specified area on the conical guide plate can be achieved. It can fully and accurately determine whether the conical guide plate is worn and thinned and has potholes during long-term use. The large crack detection mechanism set 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 moving detection path of each detection wheel on the conical guide plate, so that the detection wheel can detect the thickness of the conical guide plate more accurately, so that the device can regularly and automatically detect the degree of wear of the conical guide plate. During the detection, there is no need to disassemble the branch pipe and the main conveying pipe, so that the detection is automatic, convenient, fast and accurate.

[0018] 2. The present invention can detect the coal powder transport rate in the branch pipe for a long time, stably and safely, 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 plate to slide inside the conveying connecting pipe, thereby driving the moving 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 transport rate in the conveying connecting pipe. When the sixth electric push rod controls the sliding card plate to slide to different positions on both sides of the conveying connecting pipe, the laser distance measuring sensors arranged on the outside of both sides of the conveying connecting pipe can accurately measure the distance between the sliding card plate. The spacing can be 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, so as to accurately know the coal powder transport rate in the conveying connecting pipe, and because 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, and the coal powder transport rate can be synchronously adjusted and controlled during the detection process to ensure the safety of the process of conveying and adding coal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

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

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

[0022] Figure 3 The internal structure of the branch pipe connection end of the present invention is shown in FIG. Figure 1 ;

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

[0024] Figure 5 The internal structure of the branch pipe connection end of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 6 It is a schematic diagram of the structure of the wear detection part in the present invention;

[0026] Figure 7It is a schematic diagram of the self-detection main structure in the present invention;

[0027] Figure 8 It is a side view stereoscopic structure diagram of the self-detection main body in the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the angle adjustment device in the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the wear detection device in the present invention;

[0030] Fig.11 It is a schematic diagram of the structure of the auxiliary large crack detection mechanism in the present invention;

[0031] Fig.12 It is a structural schematic diagram of the control and monitoring part in the present invention;

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

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

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

[0035] Fig.16 Schematic diagram of the internal structure of the conical 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-sealed baffle plate, 9-first electric push rod, 10-sealed 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 tooth 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-moving control board, 53-conical baffle adjustment plate. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present 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 comprising 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 is further described below in conjunction with the accompanying drawings.

[0040] like Figure 1-8 As shown, a self-detecting and self-adjusting safe type coal powder conveying and distribution device of the present invention comprises a branch guide pipe 5, a main conveying pipe 6 and a conical guide plate 7, wherein the two branch guide 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 guide 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 arranged on both sides of the main conveying pipe 6, the wear detection parts 2 are located above the branch guide pipe 5, the outer side 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 guide pipes 5, and the wear detection parts 2 are fixedly installed with a first mounting plate 3 by bolts. The damage detection part 2 includes a sealing placement frame 10, and a sealing baffle plate 8 is slidably inserted into the inner side of the sealing placement frame 10. First electric push rods 9 are 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 plate 8, and the sealing baffle plate 8 is provided to play a role of barrier protection. A self-detection body 11 is arranged 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 arranged 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 conveniently replaced.

[0041] like Fig.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 inside 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 with a synchronous rotating rod 29. Control gears 25 are fixedly installed at both ends of the 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 meshed and connected with the first sliding tooth plate 26 and the second sliding tooth plate 36 respectively. The second motor 24 is fixedly installed on the outer side of the third mounting plate 21 through a mounting frame. The driving end of the second motor 24 is fixedly connected to the middle part 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 with the first connecting frame 35. The outer ends of the first connecting frame 35 are fixedly connected with the fourth electric push rod 34, the outer ends of the fourth electric push rod 34 are fixedly connected with the telescopic control spring 33, the outer ends of the telescopic control spring 33 are fixedly connected with the pressure sensor 32, the outer ends of the pressure sensor 32 are rotatably installed with the detection wheel 31 through the mounting frame, the bottom end of the first connecting frame 35 is provided with a large crack detection mechanism 30, 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, and the controller 28 is connected with each running electric push rod and other electrical equipment through a wire to receive the detection information and data and control the operation of each electrical equipment, and 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, and the pressure detected by the pressure sensor 32 is judged to determine whether the conical guide plate 7 is worn and thinned, and at the same time, each large crack detection mechanism 30 can move on the outer end surface of the conical guide plate 7, so that the detection result is more accurate.

[0042] like Fig.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 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 installed inside the front end of the mounting limit frame 41, and a conical detection scraper 43 is fixedly connected to the front end of the swing arm 44, and a second angle sensor 42 is fixedly arranged on both sides of the mounting limit frame 41, and the end of the swing arm 44 that is rotatably clamped on the mounting 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 limited pressing spring 45, and the upper end of the limited pressing spring 45 is fixedly connected to the mounting limit frame 41. Starting the fifth electric push rod 39 can make the mounting limit frame 41 and the conical detection scraper 43 and other components move forward a longer 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 arranged, 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 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 Fig. 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, a movable adjustment plate 15 is fixedly connected to the front end of the second electric push rod 14, and a third electric push rod 16 is fixedly installed at the side end corner of the movable adjustment plate 15 away from the second electric push rod 14, and a second mounting plate 17 is fixedly connected to the front end of the third electric push rod 16, and a rotating adjustment arm 19 is rotatably installed at the middle part of the side end of the second mounting plate 17 away from the movable adjustment plate 15, and the first motor 18 and the first angle sensor 20 are fixedly installed at both ends of the side of the second mounting plate 17 away from the movable adjustment plate 15, respectively, and 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, and the rotating adjustment arm 19 is fixedly connected to the middle part of the inner side end of the third mounting plate 21, and 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 and stably and accurately as a whole.

[0044] like Figure 12-16As shown, the control and monitoring part 4 includes a conveying connection pipe 47, the front end of the conveying connection pipe 47 is fixedly connected with a conical conveying pipe 46, and protective sealing covers 48 are fixedly installed in the middle of both sides of the conveying connection pipe 47 by bolts. A moving control board 52 is arranged inside the conveying connection pipe 47, and sliding card plates 50 are fixedly connected to both sides of the moving control board 52. The sliding card plates 50 are slidably connected to both sides of the conveying connection pipe 47. Sixth electric push rods 49 are fixedly installed on both sides of the conveying connection pipe 47, and the front end of the sixth electric push rod 49 is fixedly connected to the sliding card plates 50. Laser distance measuring sensors 51 are fixedly installed on both sides of the conveying connection pipe 47 and at one end away from the sixth electric push rod 49. The sliding card plates 50 are located just in front of the laser distance measuring sensor 51. The end of the moving control board 52 is fixedly connected with a conical baffle adjustment plate 53, and the conical baffle adjustment plate 53 is located inside the conical conveying pipe 46. The sixth electric push rod 49 can control the sliding card plates 50 to slide inside the conveying connection pipe 47, so that It drives the mobile 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, so that the rate at which coal powder is conveyed from the conveying connecting pipe 47 can be controlled. 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, so as to indirectly calculate the position of the mobile control plate 52 and the conical baffle adjustment plate 53 at this time, judge 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, so as to accurately know the coal powder conveyed in the conveying connecting pipe 47.

[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 installed on the outer end of the sealing placement frame 10 by bolts, and the sealing placement frame 10 is fixedly installed 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 surface 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 inside of the large cracks or potholes on the conical guide plate 7 when sliding close to the outer end surface of the conical guide plate 7.

[0047] The non-contact thickness measuring device 37 is an eddy current thickness gauge, which utilizes the eddy current effect generated by the high-frequency electromagnetic field in the conical guide plate 7, calculates the thickness by detecting the eddy current changes, and is 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 penetration 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 cut and diverted by 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 constantly in contact and impact with the transported coal powder, causing 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 device is used for a specified time, the main conveying pipe 6 is stopped. To transport the pulverized coal in the conveying pipe 6 and the branch pipe 5, the first electric push rods 9 arranged on both sides of the main conveying pipe 6 are started, and the sealing baffle plate 8 can be driven to rise from the inside of the sealing placement frame 10 through the first electric push rods 9. At this time, the sealing baffle plate 8 no longer seals and blocks the inner end of the sealing placement frame 10, and then the second electric push rods 14 arranged on both sides of the main conveying pipe 6 are started, and 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, and the second mounting plate 17 is driven to continue to move forward through the third electric push rod 16, and the first motor 18 is synchronously operated during the movement, and the first motor 18 can drive the rotating adjustment arm 19 to rotate, thereby rotating the rotating 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 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 prevented 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 synchronously started, 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 seriously worn and thinned, and the second motor 24 is started during the detection process, and a control gear 25 is driven to rotate forward and reverse at a uniform speed through the second motor 24 and the reducer. The two control gears 25 can rotate forward and reverse at a uniform speed synchronously through the set synchronous rotation rod 29. 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 The first connecting frames 35 are moved, and the moving first connecting frames 35 can finally control the stable movement of the detection wheels 31 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 are deeper and larger potholes on the conical guide plate 7, and multiple detection wheels 31 synchronously detect the conical guide plate 7, so that the detection result is more accurate, and 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 as to accurately judge the wear degree of the conical guide plate 7;

[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 then 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 and the outer end surface of the conical guide plate 7 are in contact and reciprocate. Since the outer end of the conical detection scraper 43 is conically and smoothly arranged, 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 determine whether there is a large crack or pit 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 pit during the movement, indicating that the crack or pit 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 detected. The coal powder adhered to the outer end surface is scraped off, so the thickness can be more accurately detected 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 the larger cracks and potholes on the conical guide plate 7, but also realize the early cleaning of the detection route of the detection wheel 31, so that the coal powder on the detection route of the detection wheel 31 can be 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 severely 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 moving 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 through 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 both 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 calculating 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 accurately knowing 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 conveniently adjusted and controlled in real time.

[0051] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-detecting and self-adjusting safe coal powder 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 the two 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 arranged on both sides of the main delivery pipe (6); the outer side end of the wear detection part (2) is fixedly mounted with a first mounting plate (3) by bolts; the conical guide plate (7) is fixedly mounted inside the main delivery pipe (6) by bolts; the wear detection part (2) comprises a sealing placement frame (10); a self-detection body (11) is arranged inside the sealing placement frame (10); the self-detection body (11) comprises an angle adjustment device (12) and a wear detection device (13); the wear detection device (13) is arranged at the inner side end of the angle adjustment device (12).

2. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 1, characterized in that: 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 side 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 inside the first track plate (22) and the second track plate (27); a synchronous rotating rod (29) is rotatably mounted in the middle of the outer side of the third mounting plate (21); control gears (25) are fixedly mounted at both ends of the synchronous rotating rod (29); the control gears (25) are located between the first sliding tooth plate (26) and the second sliding tooth plate (36); and the two side ends of the control gear (25) are respectively connected to the first sliding tooth plate (26) and the second sliding tooth plate (36). The sliding tooth plate (26) and the second sliding tooth plate (36) are meshedly connected. A second motor (24) is fixedly mounted on the outer side of the third mounting plate (21) via a mounting frame. The driving end of the second motor (24) is fixedly connected to the middle part of the outer side 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 a first connecting frame (35). The outer side ends of the first connecting frame (35) are fixedly connected to a fourth electric push rod (34). The outer side ends of the fourth electric push rod (34) are fixedly connected to a telescopic control spring (33). The outer side ends of the telescopic control spring (33) are fixedly connected to a pressure sensor (32). The outer side ends of the pressure sensor (32) are rotatably mounted with a detection wheel (31) via the mounting frame. The bottom end of the first connecting frame (35) is provided with a large crack detection mechanism (30).

3. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 2, 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 at 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).

4. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 3, 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 plate (8), the inner two ends of the sealing placement frame (10) are fixedly installed with first electric push rods (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 plate (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 rotating 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), and the angle adjustment device (12) comprises a second electric push rod (14), the front end of the second electric push rod (14) is fixedly connected with 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), 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), a first motor (18) and a first angle sensor (20) are respectively 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 side end of the third mounting plate (21).

5. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 4, characterized in that: The control monitoring part (4) comprises a conveying connection pipe (47), the front end of the conveying connection pipe (47) is fixedly connected to a conical conveying pipe (46), the middle parts of both sides of the conveying connection pipe (47) are fixedly installed with protective sealing covers (48) by means of bolts, a movable control board (52) is arranged inside the conveying connection pipe (47), both sides of the movable control board (52) are fixedly connected to sliding clamping boards (50), the sliding clamping boards (50) are slidably clamped on both sides of the conveying connection pipe (47), and both sides of the conveying connection pipe (47) are fixedly connected to the sliding clamping boards (50). A sixth electric push rod (49) is fixedly installed, the front end of the sixth electric push rod (49) is fixedly connected to a sliding card plate (50), laser distance measuring sensors (51) are fixedly installed on both sides of the conveying connection 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), and the end of the moving control plate (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).

6. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 5, characterized in that: The conical conveying pipe (46) and the conical baffle adjusting 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 conveying pipe (46) is fixedly connected to the branch pipe (5) by bolts.

7. A self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 6, 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 conveying pipe (6) by means of bolts, and 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 on the outer side of the conical guide plate (7), and the outer end of the conical detection scraper (43) is arranged in a conical and smooth shape.

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

9. The self-detecting and self-adjusting safe coal powder conveying and distribution device according to claim 7 is characterized in that: The non-contact thickness measuring device (37) is a microwave thickness gauge.

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

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