Detection equipment for tail gas recovery of pressure spray dryer

Abstract

The invention relates to the technical field of tail gas recovery and detection of spray dryers, in particular to detection equipment for tail gas recovery of a pressure spray dryer, which comprises an assembly frame, an adjusting assembly and a bottom frame plate, a first winding roller is mounted on the assembly frame, and the bottom side of the first winding roller is movably connected with a first clamping piece; clamping plates are connected to one sides of the first clamping pieces, heat exchange tubes are arranged between the clamping plates, and second clamping pieces are connected to the bottom sides of the clamping plates; according to the scheme, the possibility that a large amount of manual operation is needed in the process of detecting the heat exchange tube is reduced, the effect that the device is more convenient to convey and adjust is improved, the detection is more convenient and rapid, the result is more visual and obvious, and the detection efficiency is improved. And the effect that the device can better adapt to the heat exchange tubes in various states for detection is improved, so that the adhesion conditions of impurities on the outer walls of the heat exchange tubes in different positions and different directions can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas recovery detection of spray dryers, and particularly relates to a detection device for waste gas recovery of a pressure spray dryer. Background Art

[0002] A pressure spray dryer is an efficient device that atomizes liquid materials under high pressure and quickly dries them into solid powders. The waste gas recovery of a pressure spray dryer is an important link to improve energy utilization efficiency, reduce environmental pollution, and lower production costs.

[0003] A Chinese patent with the patent publication number CN117717850A discloses an exhaust gas recovery device for a closed-loop pressure spray dryer. This device completes the heat exchange of the exhaust gas through the contact between the heat exchange tubes and the refrigerant. In the solution, the heat exchange tubes are arranged vertically, while some devices also use a horizontal arrangement. After long-term heat exchange work with different arrangements of the heat exchange tubes, scaling and sediment attachment will occur at different positions of the heat exchange tubes, and the amount of impurities attached to the heat exchange tubes at different positions is different. These attachments are likely to affect the heat exchange efficiency and the service life of the equipment. For this reason, a detection device for waste gas recovery of a pressure spray dryer is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a detection device for waste gas recovery of a pressure spray dryer.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A detection device for waste gas recovery of a pressure spray dryer includes an assembly frame, an adjustment component, and a bottom frame plate. A first winding roller is installed on the assembly frame. A first clamping member is movably connected to the bottom side of the first winding roller. A clamping plate is connected to one side of the first clamping member. A heat exchange tube is arranged between the clamping plates. A second clamping member is connected to the bottom side of the clamping plate; The adjustment component is installed on one side of the assembly frame. The adjustment component includes a mounting frame, an external gear ring, a steering housing, and a clamping member. One side of the external gear ring is rotatably connected inside the mounting frame. The steering housing is installed on the other side of the external gear ring. The clamping member is connected inside the steering housing; The bottom frame plate is arranged on the other side of the adjustment component. A tail frame is installed at one end of the bottom frame plate, and a support frame is arranged at the other end. A transverse detection member and a longitudinal detection member are respectively installed on the top surface of the bottom frame plate. A second winding roller is arranged on the longitudinal detection member.

[0006] Preferably, conveying frames are installed on both sides of the heat exchange tube. Moving disks are movably connected inside the conveying frames. A plurality of sleeves are arranged on the outer side surface of the moving disk. A pull rod is installed at the center position of the inner side surface of the moving disk. The other end of the pull rod is rotatably connected to an outer pull piece. The outer pull piece is located outside the conveying frame. Protrusions are symmetrically installed on the conveying frame. The protrusions are located on both sides of the outer pull piece. The outer pull piece is horizontally spanned between the two protrusions. A plurality of inner springs are annularly arranged on the outer side of the pull rod. The inner springs are connected between the moving disk and the conveying frame. The end of the heat exchange tube is connected inside the sleeve.

[0007] Preferably, sliding rods are symmetrically installed inside the assembly frame. The first clamping member includes a horizontal sliding frame, a first motor, an adjustable clamping plate, a guide rod, and a driving rod. The guide rod and the driving rod are parallelly installed on the bottom side of the horizontal sliding frame. The output end of the first motor is connected to one end of the driving rod. Different sections of external threads with different thread directions are provided on the outer surface of the driving rod. A plurality of groups of adjustable clamping plates are provided. The adjustable clamping plates are movably connected to the outer sides of the guide rod and the driving rod. Plugging grooves are provided on the adjustable clamping plates. Electromagnetic blocks are installed inside the plugging grooves. A plurality of groups of clamping plates are symmetrically provided. Grooves are provided at both ends of the clamping plates. Magnetic attraction blocks are fixedly installed inside the grooves. One end of the adjustable clamping plate is connected inside the grooves. A magnetic connection is formed between the magnetic attraction blocks and the electromagnetic blocks. A plurality of clamping grooves are provided on the clamping plates. The heat exchange tube is connected inside the clamping grooves. A "n"-shaped clamping block is inserted between both ends of each group of clamping plates; The second clamping member is installed on the bottom side of the assembly frame. The structure of the second clamping member is the same as that of the first clamping member. The direction of installation of the adjustable clamping plate inside the second clamping member is opposite to that of the adjustable clamping plate inside the first clamping member. Both ends of the clamping plate are connected between the adjustable clamping plates on both sides. The first winding roller is installed on the top surface of the assembly frame. One end of the rope wound on the first winding roller is connected to the top surface of the horizontal sliding frame. Two assembly frames are symmetrically installed. First wall grooves are provided on both of the two assembly frames. The conveying frame is connected inside the first wall grooves on both sides.

[0008] Preferably, the mounting frame is arranged on one side of the assembly frame. An outer convex ring is fixed on one side of the annular surface of the outer gear ring. The outer convex ring is rotatably connected in the mounting frame. On the other side of the annular surface of the outer gear ring, outer teeth are arranged in an array. A second motor is arranged on the bottom side of the mounting frame. A gear disk is mounted on the output end of the second motor. The gear disk meshes with the outer teeth. The steering shell is fixed on the front side surface of the outer gear ring. Outer convex blocks are symmetrically mounted on both sides of the steering shell. The outer convex blocks are rotatably connected in the support frame. Guide blocks are mounted on the inner walls on both sides of the steering shell. The conveying frame is movably connected in the guide blocks. On the top surface and the bottom surface on the inner side of the steering shell, two limiting shells are symmetrically mounted on each side. One end of the limiting shell is open. A blocking block is mounted on the other end of the limiting shell. A plurality of clamping members are arranged in each of the limiting shells. The tail frame is fixedly mounted on the top surface at the tail end of the bottom frame plate. A synchronous ring is rotatably connected in the tail frame. Synchronous rollers are horizontally mounted between the synchronous ring and the plurality of blocking blocks. The clamping members are all slidably connected to the outer sides of the synchronous rollers.

[0009] Preferably, the clamping member includes an adjustable slider, a telescopic clamping plate and a rotating block. An inner cavity is formed in the adjustable slider. A partition block is mounted at the central position of the top surface of the inner cavity. An intermediate rod is mounted on the bottom side of the partition block. The bottom end of the intermediate rod is fixed on the bottom surface of the inner cavity. The telescopic clamping plate is movably connected to the outer side of the intermediate rod. The telescopic clamping plate and the inner cavity are connected by a spring. A rotating rod is mounted between the adjustable sliders. The rotating rod passes through between the partition block and the adjustable sliders, and its two ends extend to the outer sides of the adjustable sliders. A rotating knob is mounted on the outer side end of the rotating rod. Two rotating blocks are symmetrically mounted on the rotating rod. The rotating blocks vertically support between the top surface of the inner cavity and the top surface of the telescopic clamping plate. A threaded opening is formed in the adjustable slider. A removable screw is arranged in the threaded opening. A clamping groove is also formed in the adjustable slider. A plurality of spring clamping rods are arranged in an array on the outer side of the steering shell. One end of each spring clamping rod is clamped in the corresponding clamping groove on the adjustable slider. The outer side end of the telescopic clamping plate is adapted to the two ends of the clamping plate.

[0010] Preferably, the longitudinal detection member includes a housing frame, a limiting frame, a multi-stage telescopic rod, and a fixed scraper. The limiting frame is fixedly installed on the top surface of the bottom frame plate. A rotating shaft is installed between the limiting frames. Second tooth pieces are provided at one end of each rotating shaft, and the two second tooth pieces are meshed with each other. A third motor is provided on one of the rotating shafts. There are two multi-stage telescopic rods, and one ends of the two multi-stage telescopic rods are respectively fixedly installed on the two rotating shafts. There are two housing frames, and fixing blocks are installed on the outer sides of the housing frames. The telescopic ends of the multi-stage telescopic rods are installed on the fixing blocks. Semi-circular fixed scrapers are welded and installed at the bottom ends of the housing frames. The two housing frames are adapted to each other. The heat exchange tube is connected between the two housing frames. A semi-circular movable scraper is placed inside the housing frame. A fixed frame rod is horizontally installed between the tail frame and the support frame. A second winding roller is installed on the fixed frame rod. One end of the rope wound on the second winding roller is provided with a rotating screw, and the rotating screw is threadedly connected to the housing frame.

[0011] Preferably, the transverse detection member includes a flipping frame, a lifting block, a horizontal frame, and a scraping member. A base is fixed on the bottom frame plate. A bottom rod is installed on the flipping frame, and the bottom rod is rotatably connected inside the base. Flipping tooth pieces are symmetrically installed on both sides of the flipping frame. A first cylinder is installed on the bottom frame plate, and a moving rack is installed on the telescopic end of the first cylinder. The moving rack is meshed with the flipping tooth pieces. Lifting lead screws are vertically installed between the inner walls on both sides of the flipping frame. There are two lifting blocks, which are both threadedly connected to the lifting lead screws on both sides. Second cylinders are installed on the lifting blocks. The horizontal frame is erected on the telescopic ends of the two second cylinders. A conveying lead screw is installed inside the horizontal frame. The scraping member is threadedly connected to the conveying lead screw. A horizontal plate is horizontally installed at the bottom end of one side of the horizontal frame, and the horizontal plate is located on the bottom side of the scraping member.

[0012] Preferably, the scraping member includes a horizontally moving block, an arc cover, a first tooth piece, an arc-shaped tooth ring, and a scraper. The arc cover is fixedly installed on one side of the horizontally moving block. The horizontally moving block is threadedly connected to the conveying lead screw. An arc-shaped groove is opened on one side of the arc cover. A limiting block is fixed on the inner side surface of the arc-shaped tooth ring, and the limiting block is connected inside the arc-shaped groove. A detachable scraper is installed on the outer side surface of the arc-shaped tooth ring by screws, and the detachable scraper is connected to the outer surface of the heat exchange tube. A micro motor is installed inside the horizontally moving block, and the first tooth piece is installed on the output end of the micro motor. The first tooth piece is meshed with the arc-shaped tooth ring. A scraper is also installed on the horizontally moving block, and the scraper is connected to the top surface of the horizontal plate. A plurality of collecting plates are arranged and installed on one side of the flipping frame, and the positions of the collecting plates correspond to those of the horizontal plate.

[0013] The beneficial effects of the present invention are: This solution can facilitate the positioning of the heat exchange tubes due to the setting of the conveying rack, and can arrange them sequentially according to the installation position during operation. It is also convenient to operate to separate the heat exchange tubes. The clamping plate can arrange and clamp the heat exchange tubes through the first clamping member and the second clamping member, which facilitates the subsequent detection of the heat exchange tubes. Due to the setting of the steering shell and the external gear ring, it is convenient to switch the horizontal and vertical states of the placement position of the heat exchange tubes. The position of the clamping plate can be positioned through the clamping member to avoid the movement of the heat exchange tubes during the process of adjusting the placement position. The clamping member can be positioned through the spring catch. Due to the installation of the synchronous roller and the synchronous ring, it is convenient for the heat exchange tubes in the vertical direction to move in the horizontal direction, thus achieving the effect of row-by-row detection. Due to the setting of the longitudinal detection member, it can clamp the heat exchange tubes on both sides. The impurities on the outer surface of the heat exchange tubes can be scraped off by the scraping blade. The multi-stage telescopic rod can always maintain the stable angle of the lifting position of the outer shell frame. The outer shell frame can collect the scraped impurities, and the movable scraping blade can stratify the impurities scraped off at different positions, which is convenient for intuitive identification. The height of the outer shell frame can be adjusted up and down through the setting of the second winding roller. Due to the setting of the transverse detection member, it can scrape the impurities on the heat exchange tubes in the horizontal direction. And due to the installation of the first tooth piece, the position of the detachable scraping blade can be adjusted up and down, so as to control the scraping of the top or bottom surface of the heat exchange tubes. And the impurities scraped off can be collected by using the scraping plate, the horizontal plate and the collecting plate. This solution reduces the possibility of a large amount of manual operation during the detection of the heat exchange tubes, improves the effect of the device being more convenient for conveying and adjusting, makes the detection more convenient and fast, and the result is more intuitive and obvious. It also improves the effect that the device can better adapt to heat exchange tubes in various states for detection, so as to detect the attachment of impurities on the outer walls of heat exchange tubes in different positions and directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 14 is a schematic structural diagram of a detection device for recovering the tail gas of a pressure spray dryer proposed by the present invention; Figure 2 FIG. 17 is a schematic structural diagram of the heat exchange tube and the conveying rack part; Figure 3 FIG. 20 is a front view structural diagram of the heat exchange tube and the conveying rack part; Figure 4 FIG. 23 is a schematic structural diagram of the assembly rack part; Figure 5 FIG. 26 is a front view structural diagram of the assembly rack part; Figure 6 FIG. 29 is a schematic structural diagram of the clamping plate part; Figure 7 FIG. 32 is a schematic structural diagram of the first clamping member part; Figure 8 Schematic front view structure of the first clamping part Figure 9 Schematic structure of the adjusting component and the chassis plate part Figure 10 Schematic structure of the adjusting component part Figure 11 Schematic front view structure of the adjusting component part Figure 12 Schematic structure of the clamping part Figure 13 Schematic front view structure of the clamping part Figure 14 Schematic structure of the longitudinal detection part Figure 15 Schematic front view structure of the longitudinal detection part Figure 16 Schematic outer structure of the outer shell frame and the multi-stage telescopic rod part Figure 17 Schematic inner structure of the outer shell frame and the multi-stage telescopic rod part Figure 18 Schematic structure of the longitudinal detection part Figure 19 Schematic side view structure of the longitudinal detection part Figure 20 Schematic structure of the scraping part

[0015] In the figure: 1. Assembly rack; 11. First winding roller; 12. First clamping member; 121. First motor; 122. Adjustable clamping plate; 123. External thread; 13. Second clamping member; 14. First wall groove; 15. Slide bar; 2. Adjusting assembly; 21. Mounting rack; 22. Steering housing; 23. External gear ring; 24. External convex block; 25. Spring clamping rod; 26. Synchronous roller; 27. Clamping member; 271. Adjustable slider; 272. Card slot; 273. Rotating block; 274. Telescopic clamping plate; 275. Rotary knob; 276. Partition block; 277. Intermediate rod; 278. Threaded port; 28. Guide block; 29. Second motor; 3. Bottom frame plate; 31. Tail rack; 311. Synchronous ring; 32. Support frame; 33. Fixed frame rod; 34. Second winding roller; 341. Rotating screw; 35. Moving rack; 36. First cylinder; 4. Horizontal detection member; 41. Flipping frame; 42. Lifting block; 43. Horizontal frame; 44. Scraping member; 441. Horizontal moving block; 442. Arc cover; 443. First tooth piece; 444. Arc-shaped gear ring; 445. Arc-shaped groove; 446. Scraper; 447. Removable scraping blade; 45. Collection plate; 5. Longitudinal detection member; 51. Outer shell frame; 52. Fixed block; 53. Multi-stage telescopic rod; 54. Second tooth piece; 55. Limiting frame; 56. Fixed scraping blade; 57. Movable scraping blade; 6. Heat exchange tube; 61. Conveyor rack; 62. Sleeve; 63. Movable disk; 64. Outer pulling piece; 7. Clamping plate; 71. Clamping groove; 72. Magnet; 73. Clamping block. Detailed implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0017] Embodiment 1: Refer to Figure 1-17 , a detection device for the tail gas recovery of a pressure spray dryer, including an assembly rack 1, an adjusting assembly 2 and a bottom frame plate 3. A first winding roller 11 is installed on the assembly rack 1. The bottom side of the first winding roller 11 is movably connected to a first clamping member 12. One side of the first clamping member 12 is connected to a clamping plate 7. A heat exchange tube 6 is arranged between the clamping plates 7. The bottom side of the clamping plate 7 is connected to a second clamping member 13; The adjusting assembly 2 is installed on one side of the assembly rack 1. The adjusting assembly 2 includes a mounting rack 21, an external gear ring 23, a steering housing 22 and a clamping member 27. One side of the external gear ring 23 is rotatably connected in the mounting rack 21. The steering housing 22 is installed on the other side of the external gear ring 23. The clamping member 27 is connected in the steering housing 22; The clamping member 27 includes an adjustable slider 271, a telescopic clamping plate 274 and a rotating block 273. An inner cavity is formed in the adjustable slider 271. A partition block 276 is installed at the center of the top surface of the inner cavity to facilitate the vertical installation of the intermediate rod 277 and the top surface limit of the telescopic clamping plate 274. The bottom side of the partition block 276 is provided with an intermediate rod 277. The bottom end of the intermediate rod 277 is fixed on the bottom surface of the inner cavity. The bottom surface of the inner cavity is in an "I" shape. The telescopic clamping plate 274 is movably connected to the outside of the intermediate rod 277. A spring connection is provided between the telescopic clamping plate 274 and the inner cavity. The corresponding spring is located outside the intermediate rod 277. A rotating rod is installed between the adjustable sliders 271 to facilitate the adjustment of the position of the rotating block 273. The rotating rod passes through between the partition block 276 and the adjustable slider 271, and both ends thereof extend to the outside of the adjustable slider 271. A rotating knob 275 is installed on the outer end of the rotating rod. Two rotating blocks 273 are symmetrically installed on the rotating rod. The rotating block 273 vertically supports between the top surface of the inner cavity and the top surface of the telescopic clamping plate 274 to press down on the telescopic clamping plate 274, completing the connection between the telescopic clamping plate 274 and the clamping plate 7. A threaded port 278 is formed in the adjustable slider 271. A removable screw is arranged in the threaded port 278 to facilitate the positioning of the rotating block 273. A clamping groove 272 is also formed in the adjustable slider 271. A plurality of spring latch rods 25 are arranged on the outside of the steering housing 22. One end of each spring latch rod 25 is clamped in the corresponding clamping groove 272 on the adjustable slider 271 to position the clamping member 27. The spring latch rod 25 is a tensile latch rod and will be disengaged from the clamping member 27 when pulled upward. The outer end of the telescopic clamping plate 274 is adapted to the two ends of the clamping plate 7 to facilitate their connection. Part of the rotating knob 275 can be replaced by a micro motor to achieve the effect of automatic control of the rotating block 273, which is convenient for control and reduces the possibility of manual adjustment; The chassis plate 3 is arranged on the other side of the adjusting assembly 2. A tailstock 31 is installed at one end of the chassis plate 3, and a support frame 32 is arranged at the other end. A transverse detector 4 and a longitudinal detector 5 are respectively installed on the top surface of the chassis plate 3. A second winding roller 34 is arranged on the longitudinal detector 5.

[0018] Specifically, conveying racks 61 are installed on both sides of the heat exchange tube 6 to support the horizontal movement of the heat exchange tube 6. Movable disks 63 are movably connected inside the conveying racks 61 to facilitate the separation of the sleeve 62 and the heat exchange tube 6. A plurality of sleeves 62 are arranged and installed on the outer side surface of the movable disk 63 to facilitate the connection of both ends of the heat exchange tube 6, and can be arranged in the same position as the heat exchange tube 6 during operation. A pull rod is installed at the center position of the inner side surface of the movable disk 63, and an outer pull piece 64 is rotatably connected to the other end of the pull rod to pull the movable disk 63 outwards to facilitate the subsequent separation of the heat exchange tube 6 from the sleeve 62. The outer pull piece 64 is located outside the conveying rack 61. Protrusions are also symmetrically installed on the conveying rack 61 and are located on both sides of the outer pull piece 64. The outer pull piece 64 is horizontally arranged between the two protrusions to position the movable disk 63 when it is pulled backwards, avoiding the sleeve 62 clamping the heat exchange tube 6 again under the action of the spring after being released. A plurality of inner springs are annularly arranged on the outer side of the pull rod to achieve more uniform resilience. The inner springs are connected between the movable disk 63 and the conveying rack 61 to facilitate the automatic resilience of the movable disk 63. The end of the heat exchange tube 6 is connected inside the sleeve 62, and the sleeve 62 can also be replaced with an insert type, which can be inserted into both ends of the heat exchange tube 6. The sleeve 62 can press the heat exchange tube 6 to avoid angle adjustment after loosening. Conveying wheels can be installed on the conveying rack 61 to facilitate smoother movement.

[0019] Further, sliding rods 15 are symmetrically installed inside the assembly rack 1 to act on the first clamping member 12 for stable up and down movement. The first clamping member 12 includes a horizontal sliding frame, a first motor 121, adjustable clamping plates 122, guide rods, and driving rods. The guide rods and the driving rods are installed in parallel between the inner walls of the horizontal sliding frame to act on the horizontal limit of the adjustable clamping plates 122. The output end of the first motor 121 is connected to one end of the driving rod. Multiple sections of external threads 123 with different thread directions are provided on the outer surface of the driving rod to drive all the adjustable clamping plates 122 to move during the rotation of the driving rod. Multiple groups of adjustable clamping plates 122 are provided. The adjustable clamping plates 122 are movably connected to the outside of the guide rods and the driving rods. Multiple adjustable clamping plates 122 are respectively threadedly connected to multiple sections of external threads 123 with different directions, so as to realize the clamping and separation between the adjustable clamping plates 122, and indirectly realize driving the clamping plate 7 to clamp the heat exchange tube 6. The gap between the adjustable clamping plate 122 and the heat exchange tube 6 corresponds. An inwardly concave insertion groove is provided on the adjustable clamping plate 122. An electromagnetic block is installed in the insertion groove. Multiple groups of clamping plates 7 are symmetrically provided. Grooves are provided at both ends of the clamping plate 7. The grooves are adapted to the insertion grooves. A magnetic attraction block 72 is fixedly installed in the grooves. One end of the adjustable clamping plate 122 is connected to the grooves. The magnetic attraction block 72 and the electromagnetic block are magnetically connected, so as to realize the complete positioning of the clamping plate 7 on the adjustable clamping plate 122 without falling off. Multiple clamping grooves 71 are provided on the clamping plates 7. The vertically arranged heat exchange tubes 6 are connected in the clamping grooves 71, which is convenient for subsequent row-by-row detection of the vertically arranged heat exchange tubes 6. A "n"-shaped clamping block 73 is inserted between the two ends of each group of clamping plates 7 to realize the closure of the two clamping plates 7, and prevent the separation of the clamping plates 7 so that they can move along with the heat exchange tube 6; The second clamping member 13 is installed on the bottom side of the assembly frame 1. The structure of the second clamping member 13 is the same as that of the first clamping member 12, and they are symmetrically installed. It can realize the parallel clamping of the clamping plate 7 on the heat exchange tube 6. The adjustable clamping plates 122 in the second clamping member 13 and the adjustable clamping plates 122 in the first clamping member 12 are installed in opposite directions. Both ends of the clamping plate 7 are connected between the adjustable clamping plates 122 on both sides. The first winding roller 11 is installed on the top surface of the assembly frame 1. One end of the rope wound on the first winding roller 11 is connected to the top surface of the horizontal sliding frame to control the up and down movement of the clamping plate 7. The position of the first clamping member 12 can be controlled to rise and fall by electric drive, and the clamping plate 7 can be inserted into the gap of the heat exchange tube 6. Two assembly frames 1 are symmetrically installed to install the clamping plate 7 at both ends of the heat exchange tube 6. First wall grooves 14 are formed on both assembly frames 1. The conveying frame 61 is connected in the first wall grooves 14 on both sides to facilitate the movement of the heat exchange tube 6 after installation. Positioning bolts are installed on the assembly frame 1 to position the position of the conveying frame 61 during the installation of the clamping plate 7. A lifting cylinder is installed on the bottom side of the second clamping member 13 to control the up and down movement of the second clamping member 13 to avoid collision between the two during the movement of the conveying frame 61 after the clamping plate 7 is installed.

[0020] Moreover, the mounting frame 21 is arranged on one side of the assembly frame 1. An outer convex ring is fixed on one side of the circumferential surface of the outer tooth ring 23. The outer convex ring is rotatably connected in the mounting frame 21 to support one side of the outer tooth ring 23. Outer teeth are arranged on the other side of the circumferential surface of the outer tooth ring 23. A second motor 29 is arranged on the bottom side of the mounting frame 21. A toothed disc is installed on the output end of the second motor 29. The toothed disc and the outer teeth are meshed with each other to drive the outer tooth ring 23 to rotate. The steering shell 22 is fixed on the front side of the outer tooth ring 23 so as to realize the synchronous rotation between the two. Outer convex blocks 24 are symmetrically installed on both sides of the steering shell 22. The outer convex blocks 24 are rotatably connected in the support frame 32 to support part of the steering shell 22. Guide blocks 28 are installed on the inner walls on both sides of the steering shell 22. The positions of the guide blocks 28 correspond to those of the first wall grooves 14. The conveying frame 61 is movably connected in the guide blocks 28 to facilitate the smooth movement to the designated position and then the direction adjustment. Two limiting shells are symmetrically installed on the top surface and the bottom surface on the inner side of the steering shell 22. One end of the limiting shell is open to facilitate the clamping member 27 to move out therefrom. Plug blocks are installed on the other ends of the limiting shells. A plurality of clamping members 27 are arranged in the limiting shells. The clamping members 27 correspond to the clamping plate 7. The tail frame 31 is fixedly installed on the top surface at the tail end of the bottom frame plate 3. The tail frame 31 is a hollow frame body. A synchronous ring 311 is rotatably connected in the tail frame 31. Synchronous rollers 26 are horizontally installed between the synchronous ring 311 and each plug block. The clamping members 27 are all slidably connected to the outer sides of the synchronous rollers 26, which can facilitate the stable movement of the heat exchange tube 6 row by row.

[0021] In this embodiment, the longitudinal detector 5 includes a housing frame 51, a limiting frame 55, a multi-stage telescopic rod 53, and a fixed scraping blade 56. The limiting frame 55 is fixedly installed on the top surface of the bottom frame plate 3. A rotating shaft is installed between the limiting frames 55. Second tooth pieces 54 are provided at one end of the rotating shaft. The two second tooth pieces 54 mesh with each other to realize the synchronous rotation of the multi-stage telescopic rods 53 on both sides, completing the connection of the housing frame 51 to the heat exchange tube 6. A third motor is provided on one of the rotating shafts. There are two multi-stage telescopic rods 53. One ends of the two multi-stage telescopic rods 53 are respectively fixedly installed on the outer surfaces of the two rotating shafts, so as to realize the adjustment of the horizontal and vertical states of the multi-stage telescopic rod 53, facilitate the closing of the housing frame 51, and avoid collisions during the movement. There are two housing frames 51. Fixed blocks 52 are installed on the outer sides of the housing frames 51. The telescopic ends of the multi-stage telescopic rods 53 are installed on the fixed blocks 52. The housing frame 51 covers the outside of the heat exchange tube 6. Semi-circular fixed scraping blades 56 are welded and installed on the bottom ends of the housing frames 51 to scrape the impurities on the outer surface of the vertically arranged heat exchange tube 6. The two housing frames 51 are adapted to each other to complete the closing and collect the scraped impurities. The heat exchange tube 6 is connected between the two housing frames 51. Semi-circular movable scraping blades 57 are placed in the housing frames 51. The movable scraping blades 57 have a certain weight and are adapted between the heat exchange tube 6 and the housing frame 51. They can compact the impurities scraped by the fixed scraping blades 56 and separate them by the movable scraping blades 57, and replace the fixed scraping blades 56 to scrape and collect the outer walls of different areas of the heat exchange tube 6. When moving again, the movable scraping blades 57 scrape the impurities for the second time. A fixed frame rod 33 is horizontally arranged between the tail frame 31 and the support frame 32. A second winding roller 34 is installed on the fixed frame rod 33. One end of the rope wound on the second winding roller 34 is installed with a rotating screw 341 for convenient disassembly from the housing frame 51. The rotating screw 341 is threadedly connected to the housing frame 51 to control the up and down movement of the housing frame 51. Three linked telescopic plates are arranged in the multi-stage telescopic rod 53 to achieve the effect of being extended one by one. After each telescopic plate is pulled out, two movable scraping blades 57 are placed in the housing frame 51 to separate the scraped impurities at different scraping heights, and finally it can be distinguished more clearly. The conveying frame 61 in the device is manually pushed at a constant speed, which can reduce the collision after reaching the designated position during the pushing process and reduce the probability of impurities falling from the heat exchange tube 6 during the conveying process.

[0022] Working principle: After removing the heat exchange tubes 6 one by one after long-term operation, they are placed and installed between the conveying frames 61 according to their installation positions during previous operation. Then, the conveying frames 61 are placed in the first wall grooves 14 on both sides of the assembly frame 1 and pushed to the designated positions. The positioning bolts are used to position the conveying frames 61 to reduce the situation of position deviation. Then, the first winding roller 11 is controlled to rotate, and the first winding roller 11 will slowly and evenly lower the first clamping member 12. The vertically downward clamping plate 7 will pass through the gaps between the heat exchange tubes 6 until the bottom end of the clamping plate 7 is connected to the adjustable clamping plate 122 corresponding to the second clamping member 13. Then, the first motors 121 on the first clamping member 12 and the second clamping member 13 are controlled to rotate, and the driving rods will start to rotate. During the rotation process, the adjustable clamping plates 122 at each corresponding position will move closer, thereby driving the corresponding clamping plates 7 to move closer to the position of the heat exchange tubes 6 until the heat exchange tubes 6 are connected to the corresponding clamping grooves 71. At this time, the clamping of the heat exchange tubes 6 is completed. The clamping blocks 73 are individually inserted into the clamping plates 7 in the clamped state to position the clamping plates 7 to prevent them from loosening. After the installation of the clamping blocks 73 is completed, the lifting cylinder is controlled to retract downward, and the second clamping member 13 will move downward. Then, the electromagnet is controlled to lose power. At this time, the magnetic connection between the electromagnet and the magnet 72 will be lost. At this time, the first winding roller 11 is controlled to rotate in the reverse direction to retract the first clamping member 12 upward. Then, the positioning of the conveying frame 61 by the positioning bolts is removed, and the conveying frame 61 is continuously pushed slowly and evenly so that the conveying frame 61 is pushed into the guide block 28 until it is pushed to the corresponding position of the clamping plate 7 and the clamping member 27. Then, the telescopic clamping plate 274 is manually pressed into the groove of the corresponding clamping plate 7, and then the rotating block 273 is adjusted so that it vertically supports between the telescopic clamping plate 274 and the adjustable slider 271. At this time, the telescopic clamping plate 274 always remains in the extended state and is clamped in the groove for positioning. Then, the remaining clamping members 27 are all connected to the corresponding clamping plates 7. After being completely connected, the heat exchange tubes 6 will be stably supported in the steering housing 22; When the heat exchange tube 6 is installed in a vertical state during a long-term heat exchange operation, the second motor 29 is controlled to rotate slowly at this time. The outer gear ring 23 will drive the steering shell 22 to rotate, so that the heat exchange tube 6 in a horizontal state rotates 90 degrees and then stops. After the rotation is completed, the heat exchange tube 6 will maintain a vertical state. When it is necessary to detect the heat exchange tube 6 row by row, the outer pull piece 64 is pulled outwards and rotated 90 degrees to support on the bumps on both sides. During the pulling process, the movable disk 63 will move into the conveying frame 61. At this time, the sleeve 62 will disengage from both ends of the heat exchange tube 6. The four outermost spring catch rods 25 are pulled outwards. At this time, the clamping parts 27 at the corresponding positions will lose their limits. The outermost group of clamping plates 7 is pushed outwards along the synchronous roller 26 to the designated detection position. Then, the third motor is controlled to rotate, and the multi-stage telescopic rod 53 will rotate until the outer frames 51 on both sides symmetrically clamp on the outer surface of the bottom side of the heat exchange tube 6. At this time, the second winding roller 34 is controlled to lower the rotating screw 341. The rotating screw 341 is manually installed on the outer frame 51. After completion, the second winding roller 34 is controlled to wind up, and the outer frame 51 will start to move upwards. During the movement, the fixed scraping piece 56 will first scrape the impurities on the outer surface of the bottom end of the heat exchange tube 6. The scraped impurities will fall into the outer frame 51. At this time, the collection of impurities at the bottom of the heat exchange tube 6 in a vertical state is completed. When the first telescopic plate is fully extended, the second winding roller 34 is controlled to reverse. Under the influence of its own weight, the outer frame 51 will fall back to the bottom end. Then, the two movable scraping pieces 57 are placed along the heat exchange tube 6 and the outer frame 51. Since the movable scraping piece 57 has a certain weight, it will directly press on the impurities just scraped after being placed. And because the impurities at the bottom of the heat exchange tube 6 have been scraped, it can avoid frictional resistance and directly touch the bottom during the placement process. After completion, the second winding roller 34 is repeatedly controlled to rotate, and the outer frame 51 will be pulled upwards again. During this period, the movable scraping piece 57 will scrape the impurities in the middle part of the heat exchange tube 6 and accumulate on the movable scraping piece 57 until the second telescopic plate is fully extended and then drops to the bottom end again. Two semi-circular movable scraping pieces 57 are placed again, and the above operation is repeated to continue scraping the impurities on the upper part of the heat exchange tube 6. After completion, it drops to the bottom end again, and two movable scraping pieces 57 are placed again. At this time, the impurities collected in the outer frame 51 will be compacted by the movable scraping piece 57. Then, the second winding roller 34 is controlled to retract the rotating screw 341, and the third motor is controlled to rotate to open the multi-stage telescopic rod 53. If the movable scraping piece 57 drops during the opening process, the movable scraping piece 57 can be held against by an external pressing rod. After opening, according to the impurity layers compacted by multiple movable scraping pieces 57, the content of impurities collected at different positions can be clearly distinguished, the content of impurities accumulated in different height regions on the outer surface of the heat exchange tube 6 during vertical heat exchange. Then, the above operation is repeated to detect the remaining heat exchange tubes 6 row by row. Through multiple groups of detection data, it can be accurately distinguished that in a vertical state, what are the differences in the degree of impurity adhesion on the outer walls at different heights of the heat exchange tube 6 and the degree of impurity adhesion on the outer walls at different positions.Therefore, it can be determined which positions or regions of the heat exchange tubes 6 are more likely to age or be damaged over a long period of time.

[0023] Embodiment 2: Referring to Figure 18-20 , on the basis of Embodiment 1, the following technical solutions are further provided: The lateral detection member 4 includes a flipping frame 41, a lifting block 42, a horizontal frame 43 and a scraping member 44. A base is fixed on the base plate 3. A bottom rod is installed on the flipping frame 41, and the bottom rod is rotatably connected in the base to support the turning of the flipping frame 41. Flipping teeth are symmetrically installed on both sides of the flipping frame 41 to drive the flipping frame 41 to rotate. A first cylinder 36 is installed on the base plate 3, and a moving rack 35 is installed on the telescopic end of the first cylinder 36. The moving rack 35 and the flipping teeth are meshed with each other to control the flipping and positioning of the flipping frame 41. A lifting lead screw is vertically installed between the inner walls on both sides of the flipping frame 41 to adjust the up and down positions of the lifting block 42 and the horizontal frame 43, so as to detect heat exchange tubes 6 at different heights. Two lifting blocks 42 are provided and are both threadedly connected to the lifting lead screws driven by electricity on both sides. Second cylinders are installed on the lifting blocks 42, and the horizontal frame 43 is erected on the telescopic ends of the two second cylinders to move the horizontal frame 43 telescopically to a specified position. A conveying lead screw is installed in the horizontal frame 43, and the scraping member 44 is threadedly connected to the conveying lead screw to achieve the effect of horizontal movement of the scraping member 44 to complete parallel scraping. A horizontal plate is horizontally installed at the bottom end of one side of the horizontal frame 43, and the horizontal plate is located under the scraping member 44 to catch the impurities falling during the scraping process.

[0024] The scraping member 44 includes a horizontal moving block 441, an arc cover 442, a first tooth piece 443, an arc tooth ring 444 and a scraping plate 446. The arc cover 442 is fixedly installed on one side of the horizontal moving block 441. An opening is provided on one side of the arc cover 442 to facilitate the entry of the heat exchange tube 6. The horizontal moving block 441 is threadedly connected to the conveying screw rod. An arc groove 445 is formed on one side of the arc cover 442. A limiting block is fixed on the inner side surface of the arc tooth ring 444. The limiting block is connected in the arc groove 445 to enable the limiting rotation of the arc tooth ring 444, so as to scrape the lower or upper part of the heat exchange tube 6 at an adjustable angle. A detachable scraping blade 447 is screwed on the outer side surface of the arc tooth ring 444 for easy replacement after a long time. The detachable scraping blade 447 is connected to the outer surface of the heat exchange tube 6. A micro motor is installed in the horizontal moving block 441. The first tooth piece 443 is installed on the output end of the micro motor. The first tooth piece 443 and the arc tooth ring 444 are meshed with each other to facilitate the adjustment of the position of the detachable scraping blade 447 and to position the arc tooth ring 444. A scraping plate 446 is also installed on the horizontal moving block 441. The scraping plate 446 is connected to the top surface of the horizontal plate and is used to collect the impurities scraped off in the horizontal direction. A plurality of collecting plates 45 are arranged and installed on one side of the turning frame 41. The collecting plates 45 correspond to the position of the horizontal plate to scrape and collect the impurities on the heat exchange tubes 6 at different heights. The amount of impurities attached to different positions can be identified from the amount of scraping.

[0025] Working principle: When the heat exchange tube 6 is working in a horizontal state during a long-term heat exchange process, at this time, control the first cylinder 36 to extend forward, and the flipping frame 41 will rotate by 90 degrees until it rotates to a vertical state. At this time, the heat exchange tube 6 is horizontally placed in the steering shell 22. Repeat the operation in Embodiment 1. First, pull the outermost spring catch 25 outward. At this time, the outermost clamping member 27 will lose its resistance. Then, push the outermost heat exchange tube 6 in the horizontal state outward until it is pushed in front of the lateral detector 4. Then, adjust the height of the lifting block 42 so that the scraping member 44 corresponds to the position of the topmost heat exchange tube 6. Then, control the second cylinder to extend. The scraping member 44 will move forward, and the arc cover 442 will move to the outside of one end of the corresponding heat exchange tube 6, and the detachable scraping blade 447 will contact the side wall surface of the heat exchange tube 6. Then, control the first tooth piece 443 to rotate to one side. At this time, the arc tooth ring 444 will rotate downward, and the detachable scraping blade 447 will rotate accordingly until it is connected to the arc surface on the bottom side of the heat exchange tube 6. Then, control the conveying lead screw to rotate, and the horizontal moving block 441 will move. The detachable scraping blade 447 scrapes from the bottom side of one end of the heat exchange tube 6 to the other side. During the scraping process, the impurities scraped off by the detachable scraping blade 447 will fall on the horizontal plate. During the movement of the horizontal moving block 441, the scraping plate 446 is driven to scrape the impurities scraped off on the horizontal plate into the collection plate 45 uniformly. After being scraped into the collection plate 45, they are separated. Then, reverse the above operations to return the horizontal moving block 441 to its original position. After returning, control the first tooth piece 443 to rotate again so that the detachable scraping blade 447 rotates to the top surface area of the heat exchange tube 6. Then, control the horizontal moving block 441 to move to the other side of the heat exchange tube 6 again. During the movement, the detachable scraping blade 447 will scrape the impurities on the top surface of the heat exchange tube 6. The scraped impurities will fall on the horizontal plate and be pushed into the collection plate 45 by the scraping plate 446. After completion, return the horizontal moving block 441 to its original position again. Control the second cylinder to retract, and then control the lifting block 42 to lower the height to detect the next layer of heat exchange tubes 6 in the horizontal state. When all the arranged heat exchange tubes 6 have been detected, by comparing the impurities collected on the top surface and the bottom surface of the heat exchange tube 6, the adhesion situation of the impurities on the outer wall of the heat exchange tube 6 in the horizontal state can be clearly distinguished. Then, repeat the operation to detect the next group of arranged heat exchange tubes 6. By comparing the impurities collected through multiple groups of operations, it can be distinguished which differences exist in the adhesion situation of the impurities on the heat exchange tubes 6 working in the horizontal state, and indirectly obtain which areas are more easily affected by these impurities over a long period of time.

[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0028] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A detection device for the tail gas recovery of a pressure spray dryer, characterized in that, Including: An assembly rack (1), on which a first winding roller (11) is installed. A first clamping member (12) is movably connected to the bottom side of the first winding roller (11). One side of the first clamping member (12) is connected to a clamping plate (7). A heat exchange tube (6) is arranged between the clamping plates (7). A second clamping member (13) is connected to the bottom side of the clamping plate (7). An adjusting assembly (2), which is installed on one side of the assembly rack (1). The adjusting assembly (2) includes a mounting rack (21), an external gear ring (23), a steering housing (22) and a clamping member (27). One side of the external gear ring (23) is rotatably connected in the mounting rack (21). The steering housing (22) is installed on the other side of the external gear ring (23). The clamping member (27) is connected in the steering housing (22). A bottom frame plate (3), which is arranged on the other side of the adjusting assembly (2). A tailstock (31) is installed at one end of the bottom frame plate (3), and a support frame (32) is arranged at the other end. A lateral detection member (4) and a longitudinal detection member (5) are respectively installed on the top surface of the bottom frame plate (3). A second winding roller (34) is arranged on the longitudinal detection member (5).

2. The detection device for the tail gas recovery of a pressure spray dryer according to claim 1, characterized in that, Conveyor racks (61) are installed on both sides of the heat exchange tube (6). Movable disks (63) are movably connected in the conveyor racks (61). A plurality of sleeves (62) are arranged in a row on the outer side surface of the movable disk (63). A pull rod is installed at the central position of the inner side surface of the movable disk (63). The other end of the pull rod is rotatably connected to an outer pull piece (64). The outer pull piece (64) is located outside the conveyor rack (61). The conveyor rack (61) is also symmetrically provided with convex blocks, which are located on both sides of the outer pull piece (64). The outer pull piece (64) is horizontally arranged between the two convex blocks. A plurality of inner springs are arranged in a circular array on the outer side of the pull rod. The inner springs are connected between the movable disk (63) and the conveyor rack (61). The end of the heat exchange tube (6) is connected in the sleeve (62).

3. The detection device for tail gas recovery of a pressure spray dryer according to claim 1, characterized in that, The sliding rods (15) are symmetrically installed inside the mounting rack (1). The first clamping member (12) includes a horizontal sliding carriage, a first motor (121), an adjustable clamping plate (122), a guide rod and a driving rod. The guide rod and the driving rod are installed in parallel on the bottom side of the horizontal sliding carriage. The output end of the first motor (121) is connected to one end of the driving rod. Multiple sections of external threads (123) with different thread directions are provided on the outer surface of the driving rod. Multiple groups of adjustable clamping plates (122) are provided. The adjustable clamping plates (122) are movably connected to the outer sides of the guide rod and the driving rod. Plugging slots are provided on the adjustable clamping plates (122), and electromagnetic blocks are installed in the plugging slots. Multiple groups of clamping plates (7) are symmetrically arranged. Grooves are provided at both ends of the clamping plates (7), and magnetic attraction blocks (72) are fixedly installed in the grooves. One end of the adjustable clamping plate (122) is connected to the groove, and a magnetic connection is formed between the magnetic attraction block (72) and the electromagnetic block. Multiple clamping grooves (71) are provided on the clamping plates (7). The heat exchange pipes (6) are connected in the clamping grooves (71). A "n"-shaped clamping block (73) is inserted between both ends of each group of clamping plates (7); The second clamping member (13) is installed on the bottom side of the mounting rack (1). The structure of the second clamping member (13) is the same as that of the first clamping member (12). The direction of installation of the adjustable clamping plate (122) inside the second clamping member (13) is opposite to that of the adjustable clamping plate (122) inside the first clamping member (12). Both ends of the clamping plate (7) are connected between the adjustable clamping plates (122) on both sides. The first winding roller (11) is installed on the top surface of the mounting rack (1). One end of the rope wound on the first winding roller (11) is connected to the top surface of the horizontal sliding carriage. Two mounting racks (1) are symmetrically installed. First wall grooves (14) are provided on both mounting racks (1). The conveying rack (61) is connected in the first wall grooves (14) on both sides.

4. The detection device for the tail gas recovery of a pressure spray dryer according to claim 1, characterized in that, The mounting bracket (21) is arranged on one side of the assembly bracket (1). One side of the outer circumferential surface of the outer tooth ring (23) is fixed with an outer convex ring, and the outer convex ring is rotatably connected within the mounting bracket (21). On the other side of the outer circumferential surface of the outer tooth ring (23), outer teeth are arranged and mounted. A second motor (29) is arranged on the bottom side of the mounting bracket (21), and a gear disk is mounted on the output end of the second motor (29). The gear disk and the outer teeth are meshed with each other. The steering housing (22) is fixed on the front side surface of the outer tooth ring (23). Outer convex blocks (24) are symmetrically mounted on both sides of the steering housing (22), and the outer convex blocks (24) are rotatably connected within the support bracket (32). Guide blocks (28) are mounted on the inner side walls on both sides of the steering housing (22), and the conveying bracket (61) is movably connected within the guide blocks (28). On the top surface and the bottom surface on the inner side of the steering housing (22), two limiting housings are symmetrically mounted on each side. One end of the limiting housing is open, and a blocking block is mounted on the other end of the limiting housing. A plurality of clamping members (27) are arranged within the limiting housings. The tail bracket (31) is fixedly mounted on the top surface at the tail end of the bottom frame plate (3). A synchronous ring (311) is rotatably connected within the tail bracket (31), and synchronous rollers (26) are horizontally mounted between the synchronous ring (311) and a plurality of blocking blocks. The clamping members (27) are all slidably connected to the outer sides of the synchronous rollers (26).

5. The detection device for the tail gas recovery of a pressure spray dryer according to claim 1, characterized in that, The clamping member (27) includes an adjustable slider (271), a telescopic clamping plate (274), and a rotating block (273). An inner cavity is formed in the adjustable slider (271). A partition block (276) is mounted at the central position of the top surface of the inner cavity. An intermediate rod (277) is mounted on the bottom side of the partition block (276), and the bottom end of the intermediate rod (277) is fixed to the bottom surface of the inner cavity. The telescopic clamping plate (274) is movably connected to the outer side of the intermediate rod (277), and the telescopic clamping plate (274) and the inner cavity are connected by a spring. A rotating rod is mounted between the adjustable sliders (271). The rotating rod penetrates between the partition block (276) and the adjustable slider (271), and its two ends extend to the outer sides of the adjustable slider (271). A rotating knob (275) is mounted on the outer side end of the rotating rod. Two rotating blocks (273) are symmetrically mounted on the rotating rod. The rotating blocks (273) vertically support between the top surface of the inner cavity and the top surface of the telescopic clamping plate (274). A threaded opening (278) is formed in the adjustable slider (271), and a removable screw is arranged within the threaded opening (278). A card slot (272) is further formed in the adjustable slider (271). A plurality of spring clamping rods (25) are arranged in a row on the outer side of the steering housing (22), and one end of each spring clamping rod (25) is clamped within the card slot (272) on the corresponding adjustable slider (271). The outer side end of the telescopic clamping plate (274) is adapted to the two ends of the clamping plate (7).

6. The detection device for tail gas recovery of a pressure spray dryer according to claim 1, wherein, The longitudinal detection member (5) includes a housing frame (51), a limit frame (55), a multi-stage telescopic rod (53), and a fixed scraping blade (56). The limit frame (55) is fixedly installed on the top surface of the bottom frame plate (3). A rotating shaft is installed between the limit frames (55). Second tooth pieces (54) are provided at one end of the rotating shaft. The two second tooth pieces (54) are meshed with each other. A third motor is provided on one of the rotating shafts. Two multi-stage telescopic rods (53) are provided. One ends of the two multi-stage telescopic rods (53) are respectively fixedly installed on the two rotating shafts. Two housing frames (51) are provided. Fixed blocks (52) are installed on the outer sides of the housing frames (51). The telescopic ends of the multi-stage telescopic rods (53) are installed on the fixed blocks (52). Semi-circular fixed scraping blades (56) are welded and installed at the bottom ends of the housing frames (51). The two housing frames (51) are adapted to each other. The heat exchange tube (6) is connected between the two housing frames (51). A semi-circular movable scraping blade (57) is placed inside the housing frame (51). A fixed frame rod (33) is horizontally installed between the tail frame (31) and the support frame (32). A second winding roller (34) is installed on the fixed frame rod (33). One end of the rope wound on the second winding roller (34) is provided with a rotating screw (341). The rotating screw (341) is threadedly connected to the housing frame (51).

7. The detection device for the tail gas recovery of a pressure spray dryer according to claim 1, characterized in that, The transverse detection member (4) includes a flipping frame (41), a lifting block (42), a horizontal frame (43), and a scraping member (44). A base is fixed on the bottom frame plate (3). A bottom rod is installed on the flipping frame (41). The bottom rod is rotatably connected inside the base. Flipping tooth pieces are symmetrically installed on both sides of the flipping frame (41). A first cylinder (36) is installed on the bottom frame plate (3). A moving rack (35) is installed on the telescopic end of the first cylinder (36). The moving rack (35) is meshed with the flipping tooth pieces. Lifting lead screws are vertically installed between the inner walls on both sides of the flipping frame (41). Two lifting blocks (42) are provided and are respectively threadedly connected to the lifting lead screws on both sides. Second cylinders are installed on the lifting blocks (42). The horizontal frame (43) is installed on the telescopic ends of the two second cylinders. A conveying lead screw is installed inside the horizontal frame (43). The scraping member (44) is threadedly connected to the conveying lead screw. A horizontal plate is horizontally installed at the bottom end of one side of the horizontal frame (43). The horizontal plate is located at the bottom side of the scraping member (44).

8. The detection device for the tail gas recovery of a pressure spray dryer according to claim 7, characterized in that, The scraping member (44) includes a horizontally moving block (441), an arc-shaped cover (442), a first tooth piece (443), an arc-shaped tooth ring (444) and a scraping plate (446). The arc-shaped cover (442) is fixedly installed on one side of the horizontally moving block (441). The horizontally moving block (441) is threadedly connected to the conveying lead screw. An arc-shaped groove (445) is formed on one side of the arc-shaped cover (442). A limiting block is fixed on the inner side surface of the arc-shaped tooth ring (444), and the limiting block is connected in the arc-shaped groove (445). A detachable scraping blade (447) is screw-mounted on the outer side surface of the arc-shaped tooth ring (444), and the detachable scraping blade (447) is connected to the outer surface of the heat exchange tube (6). A micro motor is installed in the horizontally moving block (441), and the first tooth piece (443) is installed on the output end of the micro motor. The first tooth piece (443) and the arc-shaped tooth ring (444) are meshed with each other. A scraping plate (446) is further installed on the horizontally moving block (441), and the scraping plate (446) is connected to the top surface of the horizontal plate. A plurality of collecting plates (45) are arranged and installed on one side of the flipping frame (41), and the collecting plates (45) correspond to the position of the horizontal plate.

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