Preheater crust cleaning device

Abstract

The utility model discloses a preheater crust cleaning device which comprises a pushing mechanism and a blockage cleaning mechanism extending into a preheater discharging pipe, a working table is installed at the action end of the pushing mechanism, a hollow rotating shaft is installed on the working table, and a power assembly on the working table is in power connection with the rotating shaft. The unblocking mechanism comprises propeller blades, a rotating disc and a plurality of crushing pickaxs, the propeller blades are installed on the rotating shaft, the rotating disc is concentrically and fixedly arranged at the end of the rotating shaft, the crushing pickaxs are installed on the outer edge of the rotating disc, a driving assembly for synchronously driving the crushing pickaxs to stretch and move outwards is arranged on the rotating disc, and a plurality of nozzles are installed on the outer edge of the rotating disc; the end, away from the rotating disc, of the rotating shaft is rotationally connected with a water conveying pipe, and the water conveying pipe communicates with an external high-pressure water source. The device can effectively scrape crust in the discharging pipe of the preheater, and is higher in efficiency and excellent in effect.

Description

Technical Field

[0001] The utility model belongs to the field of preheater maintenance equipment, and in particular relates to a preheater crust cleaning device. Background Art

[0002] The wall of the preheater will be adhered by the powdered materials carried by the gas flowing through it, especially the feed pipe is more prone to blockage. The traditional way to clear the blockage of the preheater feed pipe is to clean it manually, which is difficult to operate and very inefficient. The existing preheater feed pipe cleaning device uses an air cannon generated by compressed air for cleaning, and also uses an electric propeller blade to extend into the feed pipe to scrape off the crust, but the crust cannot be completely cleaned and the effect is not ideal. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model aims to provide a preheater crust cleaning device, which can effectively scrape off the crust in the preheater feed pipe with higher efficiency and excellent effect.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A preheater crust cleaning device comprises a pushing mechanism and a clearing mechanism extending into a preheater feed pipe, wherein a working table is installed at the action end of the pushing mechanism, a hollow rotating shaft is installed at the working table, a power assembly on the working table is connected to the rotating shaft power, the clearing mechanism comprises a propeller blade, a rotating disk and a plurality of breakers, the propeller blade is installed on the rotating shaft, the rotating disk is concentrically fixed at the end of the rotating shaft, the breakers are installed on the outer edge of the rotating disk, a driving assembly for synchronously driving the breakers to telescope outward is provided on the rotating disk, a plurality of nozzles are installed on the outer edge of the rotating disk, the nozzles are connected to the cavity of the rotating shaft through a water supply channel opened in the rotating disk, the end of the rotating shaft away from the rotating disk is rotatably connected to a water pipe, and the water pipe is connected to an external high-pressure water source.

[0006] Preferably, adjacent breakers and nozzles are arranged at equal intervals.

[0007] Preferably, a plurality of slide grooves are provided on the rotating disk at equal angles in the radial direction, the driving assembly comprises a guide rod, a disc and a sleeve rod slidably mounted in the slide groove, the breaker is mounted on the corresponding outer end of the sleeve rod, and the guide rod is vertically fixed to the sleeve rod; the disc is concentrically movably arranged on one side of the rotating disk, an arc-shaped guide hole is provided on the disc, the guide rod is slidably mounted in the guide hole, and a rotating assembly for driving the disc to rotate is provided on the rotating disk.

[0008] Preferably, the rotating assembly includes a screw, a first mounting block and a second mounting block, the first mounting block is rotatably mounted on the disc, the second mounting block is rotatably mounted on the rotating disc, one end of the screw is rotatably mounted on the first mounting block, and the other end is threaded through the second mounting block and extends outward, and an adjustment portion is provided at the end of the screw extending out of the second mounting block.

[0009] Preferably, a sliding rod is provided in the inner cavity of the sleeve rod, the breaker is installed on the outer end of the sliding rod, the sliding rod is sleeved in the sleeve rod and a limit block is fixed at its inner end which is slidably matched with the inner cavity of the sleeve rod, and a spring is also provided in the inner cavity of the sleeve rod, and the spring abuts against the limit block.

[0010] Preferably, the power assembly includes a motor, a first gear and a second gear. The first gear is coaxially fixedly connected to the output shaft of the motor installed on the workbench, and the second gear is coaxially fixedly connected to the rotating shaft, and the two gears are meshed with each other.

[0011] Preferably, the pushing mechanism includes a base and a hydraulic cylinder, a guide rail is installed on the base, the bottom of the workbench is slidably installed on the guide rail, and the piston rod of the hydraulic cylinder installed on the base is fixedly connected to the side end of the workbench.

[0012] The beneficial effects of the utility model are:

[0013] 1. Under the sliding limit function of the guide rail, the utility model pushes the workbench and the clearing mechanism forward through the hydraulic cylinder, thereby realizing the steady pushing of the clearing mechanism into the preheater discharge pipe, and the device has stronger stability.

[0014] 2. When the clearing mechanism is installed in the lower material pipe, first use the rotation drive of the rotating assembly to make the disc rotate around the center of the circle. Through the cooperation of the guide rod and the arc-shaped guide hole, multiple sleeve rods slide into the slide groove at the same time, thereby driving the sliding rod and the breaker at its end to retract synchronously, avoiding the sliding rod and the breaker extending too long to affect the insertion into the lower material pipe.

[0015] 3. After the breaker on the rotating disk is inserted into the discharge pipe, the sleeve rod, slide rod and breaker are extended out of the rotating disk through the rotating assembly. After the breaker hits the inner wall of the discharge pipe, it continues to extend and causes the slide rod to squeeze the spring in the sleeve rod, so that the breaker effectively hits the inner wall of the discharge pipe under the action of the spring elastic force, thereby enabling the device to adapt to the use of clearing discharge pipes of different diameters, and has stronger applicability.

[0016] 4. Since the screw is threadedly sleeved in the second mounting block, when the screw is rotated by the adjusting portion, the screw extends or shortens toward the first mounting block. During this period, the first mounting block and the second mounting block will rotate by themselves, thereby driving the disc to rotate around its center through the first mounting block, thereby driving multiple guide rods to move synchronously.

[0017] 5. The external high-pressure water source is sent to each nozzle through the water pipe, rotating shaft and water supply channel. The nozzle sprays high-pressure water to the inner wall of the lower material pipe to assist the scraping action of the breaker, thereby significantly improving the clearing efficiency of the lower material pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation of the sleeve rod and the slide rod in the rotating disk of the utility model;

[0020] Figure 3 It is a schematic diagram of the installation of the circular disc and the rotating disc of the utility model. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of use of the present invention.

[0022] like Figure 1-3 As shown, the utility model proposes a preheater crust cleaning device, including a pushing mechanism and a clearing mechanism extending into the preheater feed pipe, a workbench 2 is installed at the action end of the pushing mechanism, the pushing mechanism includes a base 1 and a hydraulic cylinder 11, a guide rail 12 is horizontally installed on the base 1, the bottom of the workbench 2 is slidably installed on the guide rail 12, and the piston rod of the hydraulic cylinder 11 horizontally installed on the base 1 is fixedly connected to the side end of the workbench 2. Under the sliding limit action of the guide rail 12, the hydraulic cylinder 11 pushes the workbench 2 and the clearing mechanism forward, thereby realizing the steady pushing of the clearing mechanism into the preheater feed pipe, and the device is more stable.

[0023] A hollow rotating shaft 3 is installed on the workbench 2, and the power assembly on the workbench 2 is connected to the rotating shaft 3. In this embodiment, the power assembly includes a motor, a first gear and a second gear. The output shaft of the motor installed on the workbench 2 is coaxially connected to the first gear, and the second gear is coaxially connected to the rotating shaft 3, and the two gears are meshed with each other. The motor drives the rotating shaft 3 to rotate through the two gears.

[0024] The blockage clearing mechanism includes a propeller blade 4, a rotating disk 5 and a plurality of crushing drafts 6. The propeller blade 4 is mounted on the rotating shaft 3. The rotating disk 5 is fixedly mounted concentrically at the end of the rotating shaft 3. The crushing drafts 6 are mounted on the outer edge of the rotating disk. The rotating shaft 3 drives the propeller blade 4 and the rotating disk 5 to rotate synchronously. After the crushing drafts 6 scrape off the crust in the preheater feed pipe, the scraped waste is pushed out of the lower feed port through the rotation of the propeller blade 4, so that the blockage clearing efficiency is higher. The hollow rotating shaft 3 can not only drive the propeller blade 4 and the rotating disk 5 to rotate, but also perform water delivery operations through the internal cavity.

[0025] The rotating disk 5 is provided with a driving assembly for synchronously driving the crushed draft 6 to telescope outward. The rotating disk 5 is provided with a plurality of slide grooves 51 at equal angles in the radial direction. The driving assembly includes a guide rod 84, a disk 85, and a sleeve rod 82 slidably mounted in the slide groove 51. The sleeve rod 82 is slidably mounted in the inner cavity along the length. The crushed draft 6 is installed at the outer end of the slide rod 81. The slide rod 81 is sleeved in the sleeve rod 82 and a limit block 811 is fixed at its inner end to slide with the inner cavity of the sleeve rod 82. A spring 83 is also provided in the inner cavity of the sleeve rod 82, and the spring 83 abuts against the limit block 811. The guide rod 84 is vertically fixed to the sleeve rod 82; the disk 85 is concentrically movably arranged on one side of the rotating disk 5, and an arc-shaped guide hole 850 is opened on the disk 85. The guide rod 84 is slidably mounted in the guide hole 850. The rotating disk 5 is provided with a rotating assembly 31 for driving the disk 85 to rotate.

[0026] When the clearing mechanism is installed in the lower feed pipe, the rotating assembly 31 is first used to rotate the disc 85 around the center of the circle, and the guide rod 84 cooperates with the arc-shaped guide hole 850, so that multiple sleeve rods 82 slide into the slide groove 51 at the same time, thereby driving the slide rod 81 and the broken draft 6 at its end to shrink synchronously, so as to prevent the slide rod 81 and the broken draft 6 from extending too long and affecting the insertion into the lower feed pipe. After the broken draft 6 on the rotating disc 5 is inserted into the feed pipe, the sleeve rod 82, the slide rod 81 and the broken draft 6 are driven to extend out of the rotating disc 5 through the rotating assembly 31. After the broken draft 6 abuts against the inner wall of the feed pipe, it continues to extend and causes the slide rod 81 to squeeze the spring 83 in the sleeve rod 82, so that the broken draft 6 effectively abuts against the inner wall of the feed pipe under the elastic force of the spring 83, so that the device can be adapted to the clearing of feed pipes of different diameters, and has stronger applicability.

[0027] The rotating assembly 31 includes a screw 92, a first mounting block 91 and a second mounting block 93. The first mounting block 91 is rotatably mounted on the disc 85, and the second mounting block 93 is rotatably mounted on the rotating disc 5. One end of the screw 92 is rotatably mounted on the first mounting block 91, and the other end is threadedly penetrated through the second mounting block 93 and extends outward. The end of the screw 92 extending from the second mounting block 93 is provided with an adjustment portion 921. The adjustment portion 921 can adopt an inner hexagonal structure that cooperates with a wrench or can also directly adopt a crank or handwheel structure. Since the screw 92 is threadedly sleeved in the second mounting block 93, when the screw 92 is driven to rotate by the adjustment portion 921, the screw 92 extends or shortens toward the first mounting block 91 side. During this period, the first mounting block 91 and the second mounting block 93 will rotate by themselves, so that the first mounting block 91 pushes the disc 85 to rotate with its center as the center, thereby driving multiple guide rods 84 to move synchronously, which is more convenient to use.

[0028] A plurality of nozzles 7 are installed on the outer edge of the rotating disk 5, and adjacent crushing drafts 6 and nozzles 7 are arranged at equal intervals. The nozzles 7 are connected to the cavity of the rotating shaft 3 through the water supply channel 52 opened in the rotating disk 5. The end of the rotating shaft 3 away from the rotating disk 5 is rotatably connected to the water pipe 32, and the water pipe 32 is connected to an external high-pressure water source. The external high-pressure water source is sent to each nozzle 7 through the water pipe 32, the rotating shaft 3, and the water supply channel 52. The nozzles 7 spray high-pressure water to the inner wall of the lower material pipe to assist the scraping action of the crushing draft 6, thereby significantly improving the efficiency of clearing the blockage of the lower material pipe.

[0029] When the utility model is used, the rotating component 31 is used to drive the sleeve rod 82, the slide bar 81 and the crushed draft 6 to retract toward the rotating disk 5 side, so as to facilitate installation in the preheater discharge pipe; after the rotating disk 5, the crushed draft 6, etc. are sent into the preheater discharge pipe by the pushing mechanism through the workbench 2, the crushed draft 6 is driven to abut against the inner wall of the discharge pipe and compress the spring 83 in the sleeve rod 82 through the reverse rotation of the rotating component 31 again; thereafter, under the slow pushing of the pushing mechanism, the power component is used to drive the propeller blade 4, the rotating disk 5, the crushed draft 6, etc. to rotate and scrape off the crust, and the nozzle 7 is used to spray high-pressure water to assist in clearing the blockage, thereby significantly improving the clearing efficiency of the discharge pipe.

[0030] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A preheater crust cleaning device, comprising a pushing mechanism and a clearing mechanism extending into a preheater feed pipe, characterized in that: A workbench is installed at the action end of the pushing mechanism, and a hollow rotating shaft is installed on the workbench. The power component on the workbench is connected to the rotating shaft power. The clearing mechanism includes a propeller blade, a rotating disk and a plurality of breakers. The propeller blade is installed on the rotating shaft, the rotating disk is concentrically fixed at the end of the rotating shaft, the breakers are installed on the outer edge of the rotating disk, and a driving component for synchronously driving the breakers to telescope outward is provided on the rotating disk. A plurality of nozzles are installed on the outer edge of the rotating disk, and the nozzles are connected to the cavity of the rotating shaft through a water supply channel opened in the rotating disk. The end of the rotating shaft away from the rotating disk is rotatably connected to a water pipe, and the water pipe is connected to an external high-pressure water source.

2. The preheater crust cleaning device according to claim 1, characterized in that: Adjacent breakers and sprinklers are arranged at equal intervals.

3. The preheater crust cleaning device according to claim 2, characterized in that: The rotating disk is provided with a plurality of slide grooves at equal angles in the radial direction; the driving assembly comprises a guide rod, a disc and a sleeve rod slidably mounted in the slide groove; the breaker is mounted on the corresponding outer end of the sleeve rod, and the guide rod is vertically fixed to the sleeve rod; the disc is concentrically movably arranged on one side of the rotating disk, an arc-shaped guide hole is provided on the disc, the guide rod is slidably mounted in the guide hole, and a rotating assembly for driving the disc to rotate is provided on the rotating disk.

4. The preheater crust cleaning device according to claim 3 is characterized in that: The rotating assembly includes a screw, a first mounting block and a second mounting block. The first mounting block is rotatably mounted on the disc, and the second mounting block is rotatably mounted on the rotating disc. One end of the screw is rotatably mounted on the first mounting block, and the other end is threaded through the second mounting block and extends outward. An adjusting portion is provided at the end of the screw extending out of the second mounting block.

5. The preheater crust cleaning device according to claim 3, characterized in that: A sliding rod is slidably sleeved in the inner cavity of the sleeve rod, a breaker is mounted on the outer end of the sliding rod, the sliding rod is sleeved in the sleeve rod and a limit block is fixed at its inner end for sliding cooperation with the inner cavity of the sleeve rod, a spring is also arranged in the inner cavity of the sleeve rod, and the spring abuts against the limit block.

6. The preheater crust cleaning device according to claim 1, characterized in that: The power assembly includes a motor, a first gear and a second gear. The first gear is coaxially fixedly connected to the output shaft of the motor installed on the workbench, and the second gear is coaxially fixedly connected to the rotating shaft, and the two gears are meshed with each other.

7. The preheater crust cleaning device according to claim 1, characterized in that: The pushing mechanism comprises a base and a hydraulic cylinder. A guide rail is installed on the base. The bottom of the workbench is slidably installed on the guide rail. The piston rod of the hydraulic cylinder installed on the base is fixedly connected to the side end of the workbench.

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