Cleaning device and cleaning method for attachments in boiler

Abstract

The invention discloses a cleaning device and a cleaning method for attachments in a boiler, and relates to the technical field of boiler cleaning. The cleaning device comprises a seat body and a plurality of groups of floating adjusting brackets connected with the seat body; each floating adjusting support is provided with a moving wheel body, the moving wheel body comprises a stator and a rotor wrapping the outer wall of the stator, and the outer wall of the rotor is provided with a wheel body and a magnetization assembly arranged at the inner bottom of the stator; advancing pedal assemblies in an annular array are arranged on the wheel body; the crushing cutter assemblies are arranged at the end parts of the two sides of the seat body in the advancing direction. Under the action of the floating adjusting support, the wheel body can be subjected to deflection lifting or descending adjustment, the device can be applied to the bumpy surface in the boiler, and when the device encounters a vertical plane, the floating adjusting support deflects and lifts upwards and continues to walk upwards along the wall in the advancing direction of the device, so that free walking on the inner wall of the boiler is achieved; the cleaning range is enlarged; and various cleaning corners and positions can be reached.

Description

Technical Field

[0001] The invention relates to the technical field of boiler cleaning, and in particular to a device and a method for cleaning internal attachments of a boiler. Background Art

[0002] During the long-term operation of the boiler, dust, coke slag and other pollutants will inevitably accumulate. These attachments not only reduce the thermal efficiency of the boiler, but may also cause safety hazards. Therefore, regular and effective boiler cleaning is essential to ensure the normal operation of the boiler. Mechanical cleaning is one of the most traditional and widely used boiler cleaning methods. It mainly relies on various mechanical devices, such as vibrators, slag removers, scrapers, etc., to physically impact or scrape the heating surface of the boiler to remove the attached ash scale;

[0003] It is difficult for existing cleaning equipment to effectively clean the corners of large boilers through simple vibration and scraping. For large boilers, it is generally necessary to use a cleaning robot to clean deep inside. However, due to the complex internal environment of the boiler and the installation of various control modules, the inner wall area is often rugged, and there is a problem of transition from horizontal to vertical surface in the internal cleaning area. In order to adapt to the complex environment of the boiler, a cleaning device and a cleaning method for internal attachments of the boiler are designed. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for cleaning internal attachments of a boiler. Under the action of a floating adjustment bracket, the wheel body can be deflected, lifted or lowered, and can be applied to the rugged surface inside the boiler. When encountering a vertical surface, the floating adjustment bracket deflects and lifts up in its forward direction, and continues to move upward along the wall, thereby achieving free movement on the inner wall of the boiler, increasing its cleaning range and reaching various cleaning corners and positions.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boiler internal attachment cleaning device, comprising: a seat body, and a plurality of groups of floating adjustment brackets connected to the seat body; a moving wheel body is installed on each group of the floating adjustment brackets, the moving wheel body comprises a stator, and a rotor covered on the outer wall of the stator, the outer wall of the rotor is equipped with a wheel body, and a magnetization component arranged at the inner bottom of the stator; a forward pedal assembly of an annular array is arranged on the wheel body, when the forward pedal assembly passes through the magnetization component, it generates magnetism and adsorbs on the inner wall of the boiler; when the moving wheel body passes through the rough boiler wall, the floating adjustment bracket can drive the moving wheel body to lift or lower and swing; and a crushing knife assembly is arranged at the ends of both sides of the seat body in the forward direction, the crushing knife assembly vibrates at high speed to cut the attachments on the inner wall of the boiler, and also includes a cleaning assembly arranged in the middle of the seat body for cleaning and sucking waste chips.

[0006] Preferably, the outer wall of the stator is provided with first coils distributed in an annular manner, and the iron core is provided with an annular manner on the rotor. When the first coils are energized, the wheel body where the rotor is located is driven to rotate under the joint action of the first coils and the iron core.

[0007] Preferably, the seat body includes an upper mounting seat and a lower mounting seat mounted on the lower part of the upper mounting seat, each group of the floating adjustment brackets is provided with two and are relatively arranged on both sides of the seat body, the floating adjustment bracket includes a support leg, the support leg is arc-shaped, the stator is fixed on the side wall of the support leg; and a first mounting shaft transversely connected to the side wall of the top end of the support leg, the outer wall of the first mounting shaft is fixed with a second transmission tooth, and an assembly groove is provided on the lower mounting seat, the assembly groove is used for assembly and insertion of the first mounting shaft, and also includes a mounting hole opened on the lower mounting seat, a first motor is installed in the mounting hole, the output shaft of the first motor is connected with a first transmission tooth, the first transmission tooth is meshed with the second transmission tooth for transmission, and is used to drive the support leg to swing up and down.

[0008] Preferably, the forward pedal assembly includes a mounting frame detachably mounted to the wheel body, a spring sheet is mounted on the bottom of the mounting frame, and a support plate is connected to the top of the spring sheet and moves up and down inside the mounting frame, a second coil is arranged on the top of the support plate, and the top of the second coil extends to the outer wall of the pedal body and is fixed to the pedal body.

[0009] Preferably, the magnetization assembly includes a mounting plate fixed to the inner bottom of the stator, a second electrode is provided on the lower surface of the mounting plate, and a first electrode is provided at the proximal end of each mounting frame. When each mounting frame is rotated to the bottom of the mounting plate and the second electrode contacts the first electrode, current can be passed through the second coils on several forward pedal assemblies at corresponding positions, thereby causing the pedal body to generate magnetism.

[0010] Preferably, the crushing knife assembly includes a support frame body, which is assembled in a mounting groove opened on the lower mounting seat through a mounting shaft, a third transmission wheel fixed at both ends of the mounting shaft on the support frame body, and a second motor embedded in the lower mounting seat, the output shaft of the second motor is fixed with a fourth transmission wheel meshing with the third transmission wheel for transmission; and a horizontal plate arranged on the end of the support frame body away from the third transmission wheel, a plurality of rotatable shafts are installed on the horizontal plate, and the bottom of each of the shafts is connected to an inclined cutting blade, and a vibration motor arranged on the support frame body is used to drive the support frame body and the plurality of cutting blades at the end to vibrate, knock and cut the attachments on the inner wall of the boiler.

[0011] Preferably, a one-way ratchet assembly arranged on the support frame is used to drive the cutting blade to rotate unidirectionally step by step to increase the cutting and crushing area; the one-way ratchet assembly includes a first cross bar, a second cross bar, and a ratchet body fixed on the outer wall of each of the rotating shafts, the upper surface of the cross plate to which the first cross bar is fixed is connected to a number of anti-return spring plates on the side wall of the first cross bar that are compatible with the ratchet body, the second cross bar is arranged on the opposite side of the first cross bar and is slidably installed on the upper surface of the cross plate, and a number of ratchet blocks that are compatible with the ratchet body are arranged on the side wall of the second cross bar, when the first cross bar is pushed back and forth, under the joint action of the ratchet blocks and the anti-return spring plates, the cutting blade at the bottom of the rotating shaft is driven to rotate gradually in one direction; and a transmission assembly installed on the support frame is used to drive the second cross bar to move.

[0012] Preferably, the transmission assembly includes a transverse axis eccentrically arranged between the two ratchet bodies, a transmission member is connected in the middle of the transverse axis, and a long groove is provided on the support frame body, the long groove is composed of a flat section and a sloping section, a push rod and a transmission rod are respectively arranged inside the flat section and the sloping section of the long groove, one end of the transmission rod can abut the push rod, and the other end thereof is connected to the transmission member, the support frame body is equipped with a mounting member at the end close to the cross plate, the mounting member is provided with a sliding groove for sliding installation of the push rod, and protrusions are arranged on both sides of the push rod, and a first elastic sheet is arranged between the protrusion and the mounting member for resetting the push rod after being pushed.

[0013] Preferably, the cleaning component includes a collecting cabin, a circular array of fans is arranged on the top of the collecting cabin, each of the fans is connected to the inner cavity of the collecting cabin and provides negative pressure therefor, and an extension tube is arranged in the middle of the collecting cabin, a certain distance is left between the top of the extension tube and the top of the collecting cabin; a spline hole groove is opened in the middle of the lower mounting seat, a mounting sleeve that can move up and down is installed in the spline hole groove, a rotatable long straight cylinder is installed in the middle of the mounting sleeve, a cleaning head is connected to the bottom of the long straight cylinder, a dust suction chamber is arranged in the cleaning head, the dust suction chamber is connected to the long straight cylinder, and a plurality of sweeping hairs are arranged at the bottom of the cleaning head; the top of the long straight cylinder extends to the interior of the extension tube and an impeller is installed, and a through groove is opened on the peripheral wall of the long straight cylinder under the impeller, when the suction airflow passes through the impeller from bottom to top, it can drive the cleaning head at the bottom of the long straight cylinder to rotate as a whole.

[0014] Preferably, a driving motor is fixed at the bottom of the lower mounting seat, and the output shaft of the driving motor is connected with a gear, and a tooth groove is arranged on one side of the mounting sleeve, and the tooth groove is meshed with the gear for transmission.

[0015] A method for cleaning internal attachments of a boiler, applied to the aforementioned device for cleaning internal attachments of a boiler, the cleaning method comprising the following steps:

[0016] S1: Through the cooperation of the forward pedal assembly and the magnetization assembly, the forward pedal assembly will generate magnetism in the area where it contacts the inner wall of the boiler, and lose magnetism at a position away from the inner wall of the boiler. Under the further action of the floating adjustment bracket, the wheel body can be deflected, lifted or lowered to achieve free movement on the inner wall of the boiler;

[0017] S2: The crushing knife assemblies at both ends of the seat body in the forward direction, when in operation, vibrate at high speed to cut and crush the attachments on the inner wall of the boiler;

[0018] S3: Reuse the cleaning component in the middle of the seat body to clean and collect waste chips.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Under the action of the floating adjustment bracket, the wheel body of the present invention can be deflected, lifted or lowered, and can be applied to the rugged surface inside the boiler. The mobile wheel body can float up and down, and when encountering a vertical surface, the floating adjustment bracket deflects and lifts up in its forward direction, and continues to move upward along the wall, thereby achieving free movement on the inner wall of the boiler, increasing its cleaning range and reaching various cleaning corners and positions.

[0021] 2. As another embodiment of the present invention, a forward pedal assembly and a magnetization assembly are provided. The forward pedal assembly will generate magnetism in the area where it contacts the inner wall of the boiler, and will lose magnetism at a position away from the inner wall of the boiler. This design is not only conducive to the magnetic advancement of the machine body inside the boiler, but also saves energy consumption.

[0022] 3. The present invention further provides a method for cleaning dirt attached to the boiler wall, which adopts a crushing knife assembly. The cutting blade acts on the surface of the boiler to knock and break the dirt. Through the further arranged one-way ratchet assembly and transmission assembly, the cutting blades where multiple rotating shafts are located rotate in one direction. As the cutting blades rotate step by step as a whole, the local cutting and crushing area covers a wider area and the crushing is more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of a second perspective stereoscopic structure;

[0025] Figure 3 for Figure 1 Schematic diagram of the disassembled structure;

[0026] Figure 4 It is a front view structural schematic diagram of the present invention;

[0027] Figure 5 for Figure 4 AA cross-sectional structural diagram;

[0028] Figure 6 It is a schematic diagram of the structure of the mobile wheel body of the present invention;

[0029] Figure 7 for Figure 6 Schematic diagram of the partial disassembly structure;

[0030] Figure 8 It is a schematic diagram of the enlarged structure of point B of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the crushing knife assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0033] Fig.11 for Fig. 9 A schematic diagram of a local enlarged structure;

[0034] Fig.12 This is a schematic diagram of the disassembled structure of the seat body of the present invention;

[0035] Fig.13 It is a schematic diagram of the stator and rotor assembly structure of the present invention.

[0036] In the figure: 111, upper mounting seat; 112, collecting chamber; 113, fan; 114, lower mounting seat; 115, mounting hole; 116, assembly groove; 117, mounting groove; 118, spline hole groove;

[0037] 211, pedal body; 212, mounting frame; 213, wheel body; 214, first electrode; 215, second electrode; 216, mounting plate; 217, stator; 2171, first coil; 218, iron core; 2181, rotor; 220, spring; 221, support plate; 222, second coil;

[0038] 311, first transmission tooth; 312, second transmission tooth; 3121, first mounting shaft; 315, supporting leg; 320, first motor;

[0039] 411, support frame; 412, transmission rod; 413, third transmission wheel; 414, horizontal axis; 415, transmission member; 416, long slot; 417, vibration motor; 418, push rod; 4181, protrusion; 4182, first spring piece; 420, mounting member; 421, horizontal plate; 4201, slide groove; 422, cutting blade; 423, ratchet body; 424, rotating shaft; 425, anti-return spring piece; 426, first horizontal bar; 427, second horizontal bar; 428, ratchet block; 460, second motor; 461, fourth transmission wheel;

[0040] 711, driving motor; 712, gear; 713, mounting sleeve; 714, tooth groove; 715, long straight tube; 7151, through groove; 7152, extension tube; 7153, impeller; 716, cleaning head; 717, sweeping hair; 718, dust suction chamber. DETAILED DESCRIPTION

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. The following describes various embodiments of the present invention in detail in conjunction with the drawings.

[0042] Example 1

[0043] See also Figures 1 to 13 The present invention preferably provides a technical solution: a boiler internal attachment cleaning device, comprising: a seat body, and a plurality of groups of floating adjustment brackets connected to the seat body; a moving wheel body is installed on each group of floating adjustment brackets, the moving wheel body comprises a stator 217, and a rotor 2181 wrapped on the outer wall of the stator 217, the outer wall of the rotor 2181 is equipped with a wheel body 213; and a magnetization component arranged at the inner bottom of the stator 217; a forward pedal assembly of an annular array is arranged on the wheel body 213, and when the forward pedal assembly passes through the magnetization component, magnetism is generated and adsorbed on the inner wall of the boiler; when the moving wheel body passes through the rough boiler wall, the floating adjustment bracket can drive the moving wheel body to lift or drop and swing; and a crushing knife assembly arranged at the ends of both sides of the seat body in the forward direction, the crushing knife assembly vibrates at high speed to cut the attachments on the inner wall of the boiler, and also includes a cleaning assembly arranged in the middle of the seat body for cleaning and sucking waste chips;

[0044] Furthermore, the outer wall of the stator 217 is provided with first coils 2171 in an annular shape, and the iron core 218 is provided in an annular shape on the rotor 2181. When the first coils 2171 are energized, the wheel body 213 where the rotor 2181 is located is driven to rotate under the joint action of the first coils 2171 and the iron core 218.

[0045] In this application, since the boiler is made of iron or other materials, a floating adjustment bracket and a moving wheel body are provided. In the design of the moving wheel body, a forward pedal assembly is used in conjunction with a magnetization assembly. In the area where the forward pedal assembly contacts the inner wall of the boiler, it will generate magnetism itself, and lose magnetism at a position away from the inner wall of the boiler. This design is not only conducive to the magnetic forward movement of the machine body inside the boiler, but also can save energy consumption;

[0046] Under the further action of the floating adjustment bracket, the wheel body can be deflected, raised or lowered, such as Figure 1 , 2 As shown, it can be applied to the rough surface inside the boiler. The moving wheel body can float up and down, and when encountering a vertical surface, the floating adjustment bracket deflects and lifts up in its forward direction, and continues to move upward along the wall, thereby achieving free movement on the inner wall of the boiler, increasing its cleaning range and reaching various cleaning corners and positions. Preferably, a battery is provided in the body, which is controlled by remote control to clean different positions in the boiler.

[0047] Furthermore, the seat body includes an upper mounting seat 111 and a lower mounting seat 114 assembled at the lower part of the upper mounting seat 111. Each group of floating adjustment brackets is provided with two and are relatively arranged on both sides of the seat body. The floating adjustment bracket includes a support leg 315, the support leg 315 is arc-shaped, and the stator 217 is fixed on the side wall of the support leg 315; and a first mounting shaft 3121 transversely connected to the side wall of the top end of the support leg 315, the outer wall of the first mounting shaft 3121 is fixed with a second transmission tooth 312, and an assembly groove 116 is provided on the lower mounting seat 114, the assembly groove 116 is used for the assembly insertion of the first mounting shaft 3121, and also includes a mounting hole 115 opened on the lower mounting seat 114, a first motor 320 is installed in the mounting hole 115, the output shaft of the first motor 320 is connected with a first transmission tooth 311, the first transmission tooth 311 and the second transmission tooth 312 are meshed for transmission, and are used to drive the support leg 315 to swing up and down.

[0048] By designing a floating adjustment bracket, such as Figure 2 , 3As shown, when the two first motors 320 arranged relatively to each other are working, the first transmission gear 311 can be driven to rotate. Under the meshing action of the first transmission gear 311 and the second transmission gear 312, the support leg 315 where the first mounting shaft 3121 is located can be driven to swing, thereby making the two relatively arranged moving wheels move. Under its structure, two groups of implementation methods can be extended. One implementation method can be applied to the rugged surface inside the boiler through the up and down floating of the moving wheel body. In another implementation method, when the front is a vertical plane, in its forward direction, the floating adjustment bracket is deflected and lifted, and continues to move upward along the wall. Under the magnetic attraction of the moving wheel body, the position of different surfaces is moved.

[0049] Example 2

[0050] As another embodiment of the present invention, the forward pedal assembly includes a mounting frame 212 detachably mounted on the wheel body 213, a spring piece 220 is mounted on the bottom of the mounting frame 212, and a support plate 221 is connected to the top of the spring piece 220 and moves up and down inside the mounting frame 212, a second coil 222 is arranged on the top of the support plate 221, and the top of the second coil 222 extends to the outer wall of the pedal body 211 and is fixed to the pedal body 211.

[0051] Furthermore, the magnetization assembly includes a mounting plate 216 fixed to the inner bottom of the stator 217, a second electrode 215 is provided on the lower surface of the mounting plate 216, and a first electrode 214 is provided at the proximal end of each mounting frame 212. When each mounting frame 212 rotates to the bottom of the mounting plate 216 and makes the second electrode 215 contact with the first electrode 214, current can be passed through the second coil 222 on several forward pedal assemblies at the corresponding positions, thereby making the pedal body 211 magnetic.

[0052] In this embodiment, a forward pedal assembly and a magnetization assembly are provided, such as Figure 3 , 6 As shown in and 7, first, Figure 7 As shown, under the action of the spring sheet 220, the pedal body 211 can float in the mounting frame 212, and can further adapt to the uneven position of the inner wall of the boiler, such as Fig.13Under the joint action of the stator 217 and the rotor 2181, the wheel body 213 can be driven to rotate as a whole, so that the first electrode 214 set on the inner side of the installation frame 212 passes through the position of the second electrode 215 where the installation plate 216 is located in sequence. After the first electrode 214 contacts the second electrode 215, the second coil 222 inside the installation frame 212 at the corresponding position is passed through by current, so that the pedal body 211 is magnetic. When the first electrode 214 is separated from the second electrode 215, the second coil 222 loses current and the magnetic force disappears. The bottom of the wheel body, that is, the area in contact with the boiler, is magnetic and can be adsorbed on the surface of the inner wall of the boiler.

[0053] Example 3

[0054] As other embodiments of the present invention, the crushing knife assembly includes a support frame 411, which is assembled in a mounting groove 117 opened on the lower mounting seat 114 through a mounting shaft, a third transmission wheel 413 fixed at both ends of the mounting shaft on the support frame 411, and a second motor 460 embedded in the lower mounting seat 114, and the output shaft of the second motor 460 is fixed with a fourth transmission wheel 461 that meshes with the third transmission wheel 413 for transmission; and a horizontal plate 421 arranged at the end of the support frame 411 away from the third transmission wheel 413, and a plurality of rotatable rotating shafts 424 are installed on the horizontal plate 421, and the bottom of each rotating shaft 424 is connected to an inclined cutting blade 422, and a vibration motor 417 arranged on the support frame 411 is used to drive the support frame 411 and the plurality of cutting blades 422 at the end to vibrate, knock and cut the attachments on the inner wall of the boiler.

[0055] In this embodiment, a method for cleaning dirt attached to the boiler wall is provided, using a crushing knife assembly, such as Figure 3 , 9 As shown, the second motor 460 can drive the fourth transmission wheel 461 to mesh with the third transmission wheel 413 when it is working, thereby driving the support frame 411 to deflect and lift upward. When the device is moving, the crushing knife assemblies on both sides are lifted up. After reaching the area to be cleaned, the crushing knife assemblies on both sides are driven to fall. By controlling the vibration motor 417 to work, the cutting blade 422 where the horizontal plate 421 is located can be driven to move. Through the high-speed vibration of the support frame 411 as a whole, a number of cutting blades 422 are driven to crush. When the vibration motor 417 on the support frame 411 runs at a high speed, an up and down vibration can be generated, thereby driving the entire support frame 411 together with a number of cutting blades 422 on the horizontal plate 421 to perform impact crushing and cutting. At this time, adjusting the power of the vibration motor 417 can change the strength and amplitude of its vibration. The cutting blade 422 acts on the surface of the boiler, which will cause the dirt to be knocked and broken. This is a preferred crushing method. At this time, the device can walk back and forth in the cleaning area;

[0056] Furthermore, the one-way ratchet assembly disposed on the support frame 411 is used to drive the cutting blade 422 to rotate one-way step by step to increase the cutting and crushing area; the one-way ratchet assembly includes a first cross bar 426, a second cross bar 427, and a ratchet body 423 fixed to the outer wall of each rotating shaft 424, the upper surface of the cross plate 421 fixed to the first cross bar 426, a plurality of anti-return springs 425 connected to the side wall of the first cross bar 426 and adapted to the ratchet body 423, and the second cross bar 4 27 is arranged on the opposite surface of the first horizontal bar 426 and is slidably installed on the upper surface of the horizontal plate 421, and a plurality of ratchet blocks 428 adapted to the ratchet body 423 are arranged on the side wall of the second horizontal bar 427. When the first horizontal bar 426 is pushed back and forth, under the joint action of the ratchet blocks 428 and the anti-return spring sheet 425, the cutting blade 422 at the bottom of the rotating shaft 424 is driven to gradually rotate in one direction; and a transmission component installed on the support frame 411 is used to push the second horizontal bar 427 to move.

[0057] Furthermore, the transmission assembly includes a transverse axis 414 eccentrically arranged between the two ratchet bodies 423, a transmission member 415 is connected in the middle of the transverse axis 414, and a long groove 416 is opened on the support frame 411, the long groove 416 is composed of a flat section and a slope section, a push rod 418 and a transmission rod 412 are respectively arranged inside the flat section and the slope section of the long groove 416, one end of the transmission rod 412 can abut against the push rod 418, and the other end thereof is connected to the transmission member 415, and the end of the support frame 411 close to the cross plate 421 is equipped with a mounting member 420, a slide groove 4201 is opened on the mounting member 420 for sliding installation of the push rod 418, and protrusions 4181 are arranged on both sides of the push rod 418, and a first elastic piece 4182 is arranged between the protrusion 4181 and the mounting member 420 for resetting the push rod 418 after being pushed.

[0058] Through the cooperation of the one-way ratchet assembly and the transmission assembly, as Figure 3 , 8As shown in Figures 9 and 11, the support frame 411 is similar to an inner and outer layer, and a transmission assembly is arranged in the middle of the inner side. When the vibration motor 417 on the support frame 411 runs at a high speed, an up and down vibration can be generated, thereby driving the entire support frame 411 together with the several cutting blades 422 on the horizontal plate 421 to perform impact crushing and cutting. At the same time, due to the action of the transmission assembly, the horizontal axis 414 is eccentrically arranged relative to the third transmission wheel 413, and is not on the same axis as the third transmission wheel 413. When the support frame 411 and the transmission member 415 swing up and down together, the support frame 411 and the transmission member 415 will produce relative displacement, and the displacement difference will push the support frame 411 to move in the direction close to the cross plate 421 and compress the first elastic sheet 4182. When the transmission rod 412 is separated from the end of the push rod 418, it is reset under the elastic force of the first elastic sheet 4182. The effect produced by this action converts the vibration of the support frame 411 into the back and forth movement of the second cross bar 427. Further, through the one-way ratchet assembly provided, combined with Figure 8 , 9 As shown in FIG10 , when the second horizontal bar 427 drives the ratchet block 428 to move toward the direction of the rotating shaft 424, the ratchet block 428 can be used to drive the rotating shaft 424 where the ratchet body 423 is located to rotate step by step, and the anti-return spring piece 425 where the first horizontal bar 426 is located on the other side can realize its one-way anti-return operation, so that the cutting blades 422 where the multiple rotating shafts 424 are located rotate in one direction. As the cutting blades 422 rotate step by step as a whole, the local cutting and crushing area covers a wider area and the crushing is more thorough.

[0059] Example 4

[0060] As another embodiment of the present invention, the cleaning assembly includes a collection chamber 112, a circular array of fans 113 are arranged on the top of the collection chamber 112, each fan 113 is connected to the inner cavity of the collection chamber 112 and provides negative pressure therefor, and an extension tube 7152 is arranged in the middle of the collection chamber 112, and a certain distance is left between the top of the extension tube 7152 and the top of the collection chamber 112; a spline hole groove 118 is opened in the middle of the lower mounting seat 114, and a mounting sleeve 713 that can move up and down is installed in the spline hole groove 118, and a rotatable mounting sleeve 713 is installed in the middle of the mounting sleeve 713. The movable long straight cylinder 715 has a cleaning head 716 connected to its bottom, a dust suction chamber 718 disposed inside the cleaning head 716, the dust suction chamber 718 being communicated with the long straight cylinder 715, and a plurality of sweeping hairs 717 disposed at the bottom of the cleaning head 716; the top of the long straight cylinder 715 extends to the interior of the extension cylinder 7152 and is provided with an impeller 7153, and a through groove 7151 is provided on the peripheral wall of the long straight cylinder 715 below the impeller 7153; when the suction airflow passes through the impeller 7153 from bottom to top, the cleaning head 716 at the bottom of the long straight cylinder 715 can be driven to rotate as a whole.

[0061] In this embodiment, a cleaning component is further provided, such as Figure 5 As shown, when the circumferentially distributed fan 113 is working, a strong negative pressure will be generated, and the dust and waste on the furnace wall will enter through the dust suction chamber 718 opened by the cleaning head 716 and be collected by the long straight tube 715 from bottom to top in the collection chamber 112. Due to the limited rotation installation of the long straight tube 715 and the mounting sleeve 713, the impeller 7153 is arranged in cooperation. When the sucked airflow comes out from the through groove 7151, passes through the impeller 7153 and is discharged by the extension tube 7152, under the action of the airflow, the impeller 7153 itself rotates to drive the entire cleaning head 716 at the bottom to rotate. While rotating, the sweeping hair 717 completes the rotary cleaning. At the same time, the openings on both sides of the dust suction chamber 718 allow the dust and waste to be sucked into it from the openings. Preferably, the device can move back and forth, and a filtering device is arranged at the bottom of the fan 113, and the filter element can block the dust and store it in the collection chamber 112.

[0062] Furthermore, a driving motor 711 is fixed at the bottom of the lower mounting seat 114, and the output shaft of the driving motor 711 is connected to a gear 712 and a tooth groove 714 arranged on one side of the mounting sleeve 713. The tooth groove 714 is meshed with the gear 712 for transmission. By driving the driving motor 711 to work, under the meshing transmission action of the gear 712 and the tooth groove 714, the cleaning head 716 where the mounting sleeve 713 is located can be driven to rise and fall as a whole to meet the cleaning needs of different concave and convex areas.

[0063] Example 5

[0064] In the above embodiment, a method for cleaning internal deposits of a boiler is extended and applied to the above-mentioned device for cleaning internal deposits of a boiler. The cleaning method comprises the following steps:

[0065] S1: Through the cooperation of the forward pedal assembly and the magnetization assembly, the forward pedal assembly will generate magnetism in the area where it contacts the inner wall of the boiler, and lose magnetism at a position away from the inner wall of the boiler. Under the further action of the floating adjustment bracket, the wheel body can be deflected, lifted or lowered to achieve free movement on the inner wall of the boiler;

[0066] S2: The crushing knife assemblies at both ends of the seat body in the forward direction, when in operation, vibrate at high speed to cut and crush the attachments on the inner wall of the boiler;

[0067] S3: Reuse the cleaning component in the middle of the seat body to clean and collect waste chips.

[0068] In the present invention, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0069] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A device for cleaning internal attachments of a boiler, characterized in that: include: A seat body, and a plurality of groups of floating adjustment brackets connected to the seat body; A movable wheel body is installed on each group of the floating adjustment brackets, and the movable wheel body includes a stator (217) and a rotor (2181) wrapped around the outer wall of the stator (217), the outer wall of the rotor (2181) is equipped with a wheel body (213), and a magnetization component arranged at the inner bottom of the stator (217); The wheel body (213) is provided with a circular array of forward pedal assemblies, and when the forward pedal assemblies pass through the magnetizing assembly, magnetism is generated and adsorbed on the inner wall of the boiler; When the moving wheel body passes through the rough boiler wall, the floating adjustment bracket can drive the moving wheel body to rise or fall and swing; And a crushing knife assembly is arranged at the two side ends of the seat body in the forward direction. The crushing knife assembly vibrates at high speed to cut the attachments on the inner wall of the boiler. It also includes a cleaning assembly arranged in the middle of the seat body for cleaning and sucking waste chips.

2. A boiler internal attachment cleaning device according to claim 1, characterized in that: The outer wall of the stator (217) is provided with first coils (2171) distributed in an annular manner, and an iron core (218) is provided in an annular manner on the rotor (2181). When the first coils (2171) are energized, the wheel body (213) where the rotor (2181) is located is driven to rotate under the combined action of the first coils (2171) and the iron core (218).

3. A boiler internal attachment cleaning device according to claim 1, characterized in that: The seat body comprises an upper mounting seat (111) and a lower mounting seat (114) mounted at the lower part of the upper mounting seat (111); each group of the floating adjustment brackets is provided with two and are arranged oppositely on two sides of the seat body; the floating adjustment brackets comprise supporting legs (315); the supporting legs (315) are arc-shaped; and the stator (217) is fixed on the side walls of the supporting legs (315); and a first mounting shaft (3121) laterally connected to the side wall at the top end of the supporting leg (315), the outer wall of the first mounting shaft (3121) being fixed with a second transmission tooth (312), and an assembly groove (116) arranged on the lower mounting seat (114), the assembly groove (116) being used for assembly and insertion of the first mounting shaft (3121), and also comprising a mounting hole (115) provided on the lower mounting seat (114), a first motor (320) being installed in the mounting hole (115), the output shaft of the first motor (320) being connected with a first transmission tooth (311), the first transmission tooth (311) being meshed with the second transmission tooth (312) for transmission, and being used for driving the supporting leg (315) to swing up and down.

4. A boiler internal attachment cleaning device according to claim 1, characterized in that: The forward pedal assembly comprises a mounting frame (212) detachably mounted on a wheel body (213); a spring sheet (220) is mounted on the bottom of the mounting frame (212); and a support plate (221) connected to the top of the spring sheet (220) and movable up and down inside the mounting frame (212); a second coil (222) is arranged on the top of the support plate (221); the top of the second coil (222) extends to the outer wall of the pedal body (211) and is fixed to the pedal body (211).

5. A boiler internal attachment cleaning device according to claim 4, characterized in that: The magnetization component comprises a mounting plate (216) fixed to the inner bottom of the stator (217), a second electrode (215) being arranged on the lower surface of the mounting plate (216), and a first electrode (214) being arranged at the proximal end of each mounting frame (212); when each mounting frame (212) rotates to the bottom of the mounting plate (216) and makes the second electrode (215) contact the first electrode (214), current can be passed through the second coils (222) on a plurality of forward pedal assemblies at corresponding positions, thereby causing the pedal body (211) to generate magnetism.

6. A boiler internal attachment cleaning device according to claim 1, characterized in that: The crushing knife assembly comprises a support frame (411), the support frame (411) is assembled in a mounting groove (117) provided on a lower mounting seat (114) via a mounting shaft, a third transmission wheel (413) fixed at both ends of the mounting shaft on the support frame (411), and a second motor (460) embedded in the lower mounting seat (114), and the output shaft of the second motor (460) is fixed with a fourth transmission wheel (461) meshing with the third transmission wheel (413) for transmission. ; and a transverse plate (421) arranged at the end of the support frame (411) away from the third transmission wheel (413), a plurality of rotatable shafts (424) being installed on the transverse plate (421), the bottom of each of the shafts (424) being connected with an inclined cutting blade (422), and a vibration motor (417) arranged on the support frame (411) for driving the support frame (411) and the plurality of cutting blades (422) at the end to vibrate, strike and cut the attachments on the inner wall of the boiler.

7. A boiler internal attachment cleaning device according to claim 6, characterized in that: A one-way ratchet assembly disposed on the support frame (411) is used to drive the cutting blade (422) to rotate one-way step by step to increase the cutting and crushing area; The one-way ratchet assembly comprises a first cross bar (426), a second cross bar (427), and a ratchet body (423) fixed on the outer wall of each of the rotating shafts (424); the upper surface of the cross plate (421) fixed to the first cross bar (426) is connected to a plurality of anti-return springs (425) on the side wall of the first cross bar (426) and adapted to the ratchet body (423); the second cross bar (427) is arranged on the opposite surface of the first cross bar (426) and is slidably mounted on the ratchet body (423); A plurality of ratchet blocks (428) adapted to the ratchet body (423) are arranged on the upper surface of the transverse plate (421) and on the side wall of the second transverse bar (427); when the first transverse bar (426) is pushed back and forth, the cutting blade (422) at the bottom of the rotating shaft (424) is driven to gradually rotate in one direction under the joint action of the ratchet blocks (428) and the anti-return spring sheet (425); and a transmission component installed on the support frame (411) is used to push the second transverse bar (427) to move.

8. A boiler internal attachment cleaning device according to claim 7, characterized in that: The transmission assembly comprises a transverse shaft (414) eccentrically arranged between two ratchet bodies (423), a transmission member (415) being connected in the middle of the transverse shaft (414), and a long slot (416) provided on the support frame (411), the long slot (416) being composed of a flat section and a slope section, and a push rod (418) and a transmission rod (412) being respectively arranged inside the flat section and the slope section of the long slot (416); One end of the transmission rod (412) can be in contact with the push rod (418), and the other end thereof is connected to the transmission member (415). The end of the support frame (411) close to the cross plate (421) is equipped with a mounting member (420). The mounting member (420) is provided with a slide groove (4201) for sliding installation of the push rod (418), and protrusions (4181) are arranged on both sides of the push rod (418). A first elastic sheet (4182) is arranged between the protrusion (4181) and the mounting member (420) for resetting the push rod (418) after being pushed.

9. A boiler internal attachment cleaning device according to claim 1, characterized in that: The cleaning assembly comprises a collection chamber (112), a circular array of fans (113) is arranged on the top of the collection chamber (112), each of the fans (113) is connected to the inner cavity of the collection chamber (112) and provides negative pressure therefor, and an extension tube (7152) is arranged in the middle of the collection chamber (112), and a certain distance is left between the top of the extension tube (7152) and the top of the collection chamber (112); A spline hole groove (118) is provided in the middle of the lower mounting seat (114), a mounting sleeve (713) that can move up and down is installed in the spline hole groove (118), a rotatable long straight cylinder (715) is installed in the middle of the mounting sleeve (713), the bottom of the long straight cylinder (715) is connected to a cleaning head (716), a dust suction chamber (718) is provided in the cleaning head (716), the dust suction chamber (718) is communicated with the long straight cylinder (715), and a plurality of sweeping hairs (717) are arranged at the bottom of the cleaning head (716); The top of the long straight cylinder (715) extends to the interior of the extension cylinder (7152) and is equipped with an impeller (7153), and a through groove (7151) is provided on the peripheral wall of the long straight cylinder (715) below the impeller (7153). When the suction airflow passes through the impeller (7153) from bottom to top, the cleaning head (716) at the bottom of the long straight cylinder (715) can be driven to rotate as a whole; A driving motor (711) is fixed at the bottom of the lower mounting seat (114), the output shaft of the driving motor (711) is connected to a gear (712), and a tooth groove (714) is arranged on one side of the mounting sleeve (713), and the tooth groove (714) is meshed with the gear (712) for transmission.

10. A method for cleaning internal deposits of a boiler, applied to a device for cleaning internal deposits of a boiler as claimed in any one of claims 1 to 9, characterized in that: The cleaning method comprises the following steps: S1: Through the cooperation of the forward pedal assembly and the magnetization assembly, the forward pedal assembly will generate magnetism in the area where it contacts the inner wall of the boiler, and lose magnetism at a position away from the inner wall of the boiler. Under the further action of the floating adjustment bracket, the wheel body can be deflected, lifted or lowered to achieve free movement on the inner wall of the boiler; S2: The crushing knife assemblies at both ends of the seat body in the forward direction, when in operation, vibrate at high speed to cut and crush the attachments on the inner wall of the boiler; S3: Reuse the cleaning component in the middle of the seat body to clean and collect waste chips.

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