Efficient unblocking maintenance device and method for cement kiln preheater

Abstract

The invention discloses an efficient unblocking maintenance device and method for a cement kiln preheater, and relates to the technical field of cement production.The structure of an unblocking maintenance device for a preheater in the prior art is optimized and improved, a hard long tamping rod is transformed into a splicing rod capable of being bent and wound, and the tamping rod is rolled into a roll in the normal state; before being pounded into a blocked position, the pounding rods are combined to be deformed into a hard long rod; a base capable of flexibly rotating is arranged for the tamping rod, so that the applicability and the flexibility of the whole device are guaranteed; the efficient unblocking maintenance device for the cement kiln preheater has the technical effects that the space needed by operation is small, flexibility is good, applicability is high, the operation process is convenient and efficient, and the penetrating angle of the tamping rod can be easily changed.

Description

Technical Field

[0001] The invention relates to the technical field of cement production, and in particular to a high-efficiency clearing and maintenance device and method for a cement kiln preheater. Background Art

[0002] Every cement production line has a preheater. During production operation, the alkali, chlorine and sulfur content in the material is too high, and the volatile components circulate and accumulate in the system. They evaporate at high temperatures and condense in low temperature areas, causing the preheater to form a crust. When the crust grows to a certain thickness or the accumulation of material reaches a certain level, the preheater is likely to be blocked.

[0003] When the preheater is blocked, the system will be forced to stop, which will have a certain impact on the continuous and stable production of the cement kiln system and the reduction of production costs, and also restrict the increase of the output of the cement kiln system. When the preheater is blocked, the company usually adopts the principle of closing first and then opening, unblocking first and then poking the blockage, and uses manual cleaning and tamping rods (tamping rods refer to long rods and steel pipes) to poke open the lower channel and find a way for the blocked materials.

[0004] However, the traditional manual preheater clearing method is inefficient and highly dangerous. To address the above problems, a Chinese invention patent with the patent authorization number CN114754593B discloses a cement kiln preheater clearing mechanical device, which uses related equipment (mechanical devices) instead of manual labor to drive the steel pipe to move and complete the clearing, thereby improving the working conditions of workers and improving the safety performance of the operation. The speed and displacement of the clearing steel pipe are controlled by controlling the speed and running time of the driving motor to achieve precise clearing. The pitch movement of the clearing steel pipe is controlled by the telescopic cylinder. The left and right swing of the clearing pipe is controlled by the rotation of the rotating support, thereby expanding the clearing range and improving the clearing efficiency.

[0005] Although the solution disclosed in the above patent can replace manual work to a certain extent and reduce the labor intensity and danger of the operation process, it is limited by its own structure, especially by the length of the steel pipe (tamping rod) used for dredging, and has poor flexibility; and the entire equipment requires a large space for layout, and the holes (holes with doors) through which the tamping rod can enter for dredging operations are located in different positions, and some of them are even temporarily opened. It is difficult to use the above device for dredging operations, and it cannot be carried out because it cannot be opened, and the applicability is poor.

[0006] Therefore, there is a need for an efficient cement kiln preheater clearing and maintenance device that requires little space for operation, has good flexibility, strong applicability, a convenient and efficient operation process, and can easily change the penetration angle of the tamping rod. Summary of the invention

[0007] The embodiment of the present application solves the technical problems in the prior art of the preheater clearing and maintenance device having poor flexibility, large space required for operation and poor applicability by providing an efficient clearing and maintenance device for a cement kiln preheater. The embodiment of the present application achieves the technical effects that the efficient clearing and maintenance device for a cement kiln preheater has small space required for operation, good flexibility, strong applicability, convenient and efficient operation process and can easily change the penetration angle of the tamping rod.

[0008] The embodiment of the present application provides a cement kiln preheater efficient blockage clearing and maintenance device, comprising a bearing base, a shaping bearing tube assembly, and a tamping rod assembly; the bearing base is a combination of a telescopic rod and a rotating plate, and a reel-shaped rod retracting assembly is positioned on the top;

[0009] The shaping bearing pipe assembly comprises a straight base pipe fixed on a bearing base, a top lifting wheel, and a plurality of shaping winch assemblies positioned on the side wall of the base pipe; the top lifting wheel is controlled to penetrate into the through slot at the top of the base pipe and rotate, thereby driving the tamping rod assembly in the base pipe to move and deform;

[0010] The tamping rod assembly penetrates the base pipe and includes a rod end cone, a base rod located at the tail of the rod end cone, and a rear rod having one end fixed to the base rod and the other end fixed to the rod retracting assembly;

[0011] The rope wound on the shaping winch assembly is positioned at the tail of the rod end cone, and the tamping rod assembly is shaped by pulling in cooperation with the top lifting wheel;

[0012] The rear rod includes multiple rod units and multiple filling compression springs, which are rolled up on the rod retracting and extending assembly; the two ends of the rod unit are respectively provided with a front column block and a rear column block; the filling compression spring is located between the two rod units, and is sleeved on the front column block and the rear column block, and both ends of the filling compression spring are against the end of the rod unit.

[0013] Further, the bearing base includes a bottom telescopic rod, a carrying plate, a top rotating plate and an outer cover box;

[0014] The bottom telescopic rod is a rigid telescopic rod arranged longitudinally;

[0015] The carrier plate is a hard circular plate, and the center position of the bottom is positioned at the top of the bottom telescopic rod;

[0016] The carrier is rotatably connected to the bottom telescopic rod and rotates under the coordinated control of the power assembly and the control unit, and the axial direction of the rotation shaft is perpendicular to the axial direction of the bottom telescopic rod;

[0017] The top rotating disk is a hard disk, which rotates around its own axis and is connected to the top of the carrier disk and is coaxial with the carrier disk;

[0018] The outer cover box is a hard cover body, which is cylindrical in shape as a whole, and the bottom is fixed on the top surface of the top rotating disk, and together with the top rotating disk, a flat columnar space is formed;

[0019] A guide tube is provided on the side wall of the outer cover box; the overall length direction of the guide tube is the same as the radial direction of the carrier plate, and one end of the guide tube is connected to the inner space of the outer cover box.

[0020] Further, the shaping load-bearing pipe assembly includes a base pipe, a side load bar, a top lifting wheel, a wheel carrier, a bottom load wheel, a pipe end frame and a shaping winch assembly;

[0021] The base tube is a hard round tube, the axial direction of which is the same as the radial direction of the top rotating disk, and is fixed on the top rotating disk through a tube positioning body. A plurality of through grooves are provided on the top and bottom, and these through grooves are used to facilitate the top lifting wheel and the bottom load wheel to contact the tamping rod assembly in the base tube;

[0022] The side load strips are located on both sides of the base tube, and the length direction is the same as the axial direction of the base tube;

[0023] The top lifting wheel is arranged horizontally, with its axis perpendicular to the axis of the base pipe, and has a built-in motor. Both ends are positioned on the wheel carrier; the wheel carrier is positioned on the side load bar and is a telescopic rod structure; the top lifting wheel is driven by the wheel carrier to enter the through slot;

[0024] The bottom load wheels are rotatably connected to the side load bars at both ends and are located in the through grooves at the bottom of the base pipe, and there are multiple of them;

[0025] The pipe end bracket is fixed on the side wall of the base pipe.

[0026] Furthermore, in the non-compressed state, the length of the filling compression spring is greater than half the length of the rod unit, and at this time, the distance between the front columnar block and the rear columnar block of two adjacent rod units is less than half the length of the filling compression spring.

[0027] Furthermore, the front column block and the rear column block are both hard cylinders, coaxial with the rod unit and with the surface away from the rod unit being a plane; the diameter of the front column block and the rear column block is two-thirds to three-quarters of the diameter of the rod unit.

[0028] Further, the shaping winch assembly includes a retractable winch and a connecting rope;

[0029] The retractable winch is positioned on the pipe end frame, one end of the connecting rope is wound around and positioned on the retractable winch, and the other end is fixed to the tail end of the rod end cone of the tamping rod assembly near the edge; the spacing between adjacent fixed points of the shaping winch assembly on the rod end cone is equal.

[0030] Preferably, the diameter of the rod retracting assembly is greater than 80 cm, and the number of turns of the rear rod wound on the rod retracting assembly is less than 1 turn.

[0031] Preferably, both ends of the filling compression spring are fixed to the end of the rod unit to which it is closely attached; the number of turns of the rear rod wound on the rod retracting assembly is greater than 4 turns; and the diameter of the rod retracting assembly is less than 50 cm.

[0032] Preferably, it also includes an extrusion positioning block;

[0033] The pipe positioning body includes a base frame and a positioning bearing;

[0034] The base frame is fixed on the top rotating disk; the positioning bearing sleeve is set on the base pipe; the outer ring of the positioning bearing is fixed on the base frame;

[0035] The shaping bearing pipe assembly also includes a pipe driving assembly for driving the base pipe to rotate around its own axis;

[0036] A through slot is provided on the top of the guide tube, and an extrusion positioning block is positioned on the through slot; the extrusion positioning block fixes the rear rod in the guide tube by extrusion as required;

[0037] The end of the front columnar block away from the rod unit is fixed with a front protrusion, and the end of the rear columnar block away from the rod unit is provided with a matching groove matching the front protrusion;

[0038] The front protrusion is a rectangular hard block, and the front protrusion is inserted into the matching groove when the filling compression spring is in a normal state and when it is in a compressed state, so as to transmit power from the base pipe;

[0039] The end of the filling compression spring is closely attached to the rod unit but is not fixed on the rod unit.

[0040] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0041] By optimizing and improving the structure of the preheater clearing and maintenance device in the prior art, the hard long tamping rod is transformed into a bendable and winding spliced ​​rod, the tamping rod is rolled up under normal circumstances, and the tamping rod is combined to be deformed into a hard long rod before being tamped into the blockage position; a flexible and rotating base is provided for the tamping rod to ensure the applicability and flexibility of the entire device; the technical problems of poor flexibility, large space required for operation and poor applicability of the preheater clearing and maintenance device in the prior art are effectively solved, thereby achieving the technical effect that the efficient clearing and maintenance device for the cement kiln preheater requires a small space for operation, has good flexibility, strong applicability, is convenient and efficient in the operation process, and can easily change the insertion angle of the tamping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the appearance and structure of the high-efficiency clearing and maintenance device for cement kiln preheater of this application;

[0043] Figure 2This is a schematic diagram of the bottom structure of the cement kiln preheater high-efficiency clearing and maintenance device for this application;

[0044] Figure 3 This is a schematic diagram of the top structure of the cement kiln preheater high-efficiency clearing and maintenance device for this application;

[0045] Figure 4 It is a structural schematic diagram of the shaping load-bearing tube assembly;

[0046] Figure 5 This is a schematic diagram of the top structure of the basic pipe;

[0047] Figure 6 This is a schematic diagram of the bottom structure of the foundation pipe;

[0048] Figure 7 A schematic diagram of the positional relationship between the base pipe, the side load bar and the pipe end bracket;

[0049] Figure 8 is a structural schematic diagram of a tamping rod assembly;

[0050] Fig. 9 This is an exploded view of the rear lever;

[0051] Fig.10 Schematic diagram of the internal structure of the outer cover box;

[0052] Fig.11 It is a schematic diagram of the positional relationship between the shaping bearing tube assembly and the tamping rod assembly.

[0053] In the figure:

[0054] Bottom telescopic rod 110, carrier plate 120, top rotating plate 130, outer cover box 140, guide tube 150, extrusion positioning block 160, base tube 210, tube positioning body 211, base frame 212, positioning bearing 213, side load bar 220, top lifting wheel 230, wheel carrier 240, bottom load wheel 250, tube drive assembly 260, tube end frame 270, retractable winch 281, connecting rope 282, rod end cone 310, base rod 320, rod unit 330, front columnar block 331, rear columnar block 332, front protrusion 333, matching groove 334, filling compression spring 340, rod retractable assembly 400. DETAILED DESCRIPTION

[0055] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0056] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0058] Embodiment 1

[0059] like Figures 1 to 10 As shown, the cement kiln preheater efficient clearing and maintenance device of the present application includes a bearing base, a shaping bearing tube assembly, a tamping rod assembly, a power assembly and a control unit.

[0060] The bearing base plays the role of bearing the shaping bearing tube assembly and the tamping rod assembly. During operation, the bearing base drives the two to shift flexibly through its own extension and / or rotation, thereby flexibly changing the impact direction of the tamping rod assembly.

[0061] like Figure 1 and Figure 2 As shown, the bearing base includes a bottom telescopic rod 110, a carrier plate 120, a top rotating plate 130 and an outer cover box 140;

[0062] The bottom telescopic rod 110 is a rigid telescopic rod arranged longitudinally, and is an electric telescopic rod, a pneumatic telescopic rod or a telescopic cylinder;

[0063] The carrier plate 120 is a hard circular plate, which plays the role of connection and bearing, and the center position of the bottom is located at the top of the bottom telescopic rod 110;

[0064] The carrier plate 120 is rotatably connected to the bottom telescopic rod 110 and rotates under the coordinated control of the power assembly and the control unit, and the axial direction of the rotation axis is perpendicular to the axial direction of the bottom telescopic rod 110;

[0065] The top rotating disk 130 is a hard disk, which rotates around its own axis and is connected to the top of the carrier disk 120 and is coaxial with the carrier disk 120; the top rotating disk 130 rotates relative to the carrier disk 120 under the coordinated control of the power assembly and the control unit;

[0066] The outer cover box 140 is a hard cover body, which is cylindrical in shape as a whole. The bottom is fixed on the top surface of the top rotating disk 130, and together with the top rotating disk 130, a flat columnar space is formed, which is used to accommodate the rear rod of the tamping rod assembly. The center of the space is located with a rod retracting assembly 400 for reeling in and releasing the rear rod; the rod retracting assembly 400 is a reel structure, which is controlled by the control unit to operate, and the axial direction is the same as the thickness direction of the top rotating disk 130, and the rear rod is reeled in and released under the control of the control unit;

[0067] like Figure 3 As shown, a guide tube 150 is provided on the side wall of the outer cover box 140; the overall length direction of the guide tube 150 is the same as the radial direction of the carrier 120, and one end is connected to the internal space of the outer cover box 140 for guiding the rear rod to enter and exit the outer cover box 140.

[0068] Furthermore, a carrying vehicle is provided at the bottom of the carrying base, and the carrying vehicle can move flexibly with the carrying base.

[0069] Preferably, the carrier vehicle has legs.

[0070] like Figures 4 to 7 As shown, the shaping bearing pipe assembly is used to guide the moving direction of the tamping rod assembly and shape the rear rod of the tamping rod assembly, and includes a base pipe 210, a side load bar 220, a top lifting wheel 230, a wheel carrier 240, a bottom load wheel 250, a pipe end frame 270 and a shaping winch assembly;

[0071] The base tube 210 is a hard round tube, the axial direction of which is the same as the radial direction of the top rotating disk 130, one end of which is arranged close to the end of the guide tube 150 and the distance between the end of the guide tube 150 and the base tube 210 is less than 5 cm; the base tube 210 is fixed on the top rotating disk 130 by a tube positioning body 211, and rotates with the rotation of the top rotating disk 130; the tube positioning body 211 is a plate-shaped, rod-shaped or frame structure, which plays a role in bearing connection; the top and bottom of the base tube 210 are provided with a plurality of through grooves, which are used to facilitate the top lifting wheel 230 and the bottom load wheel 250 to contact the tamping rod assembly in the base tube 210;

[0072] The base pipe 210 is coaxial with the guide pipe 150;

[0073] The side load bars 220 are hard long bars, two in number, located on both sides of the base tube 210 and arranged close to the side walls of the base tube 210, with the length direction being the same as the axial direction of the base tube 210, and used to support the top lifting wheel 230 and the bottom load wheel 250;

[0074] The top lifting wheel 230 is a horizontally arranged cylindrical or funnel-shaped wheel body, with its axial direction perpendicular to the axial direction of the base tube 210, its side surface made of rubber, and a built-in motor, which rotates around its own axis under the coordinated control of the power component and the control unit; the two ends of the top lifting wheel 230 are positioned on the wheel carrier 240; the wheel carrier 240 is positioned on the side load bar 220, and is a telescopic rod structure, which drives the top lifting wheel 230 to approach or move away from the base tube 210 under the control of the control unit; the top lifting wheel 230 is arranged close to the through groove on the base tube 210, and is located at the top of the base tube 210; driven by the wheel carrier 240, it penetrates into the through groove and contacts the tamping rod assembly, thereby driving the tamping rod assembly to move.

[0075] Furthermore, the number of the through grooves on the top of the base pipe 210 is two, and the number of the top lifting wheels 230 of the shaping support pipe assembly is also two. The two top lifting wheels 230 rotate independently and are independently lifted and lowered under the drive of the wheel carrier 240.

[0076] The bottom load wheel 250 is a horizontally arranged cylindrical or funnel-shaped wheel body, with its axial direction perpendicular to the axial direction of the base tube 210, and its two ends are rotatably connected to the side load bars 220. It is located in the through groove at the bottom of the base tube 210 and always contacts the tamping rod assembly when in use. There are multiple bottom load wheels 250, which are arranged in a row.

[0077] The pipe end frame 270 is fixed on the side wall of the base pipe 210 and is arranged away from the guide pipe 150. It is a hard annular frame, and its axial direction is the same as that of the base pipe 210, and plays the role of bearing and supporting the shaping winch assembly;

[0078] The shaping winch assembly is a winch structure, and there are multiple winches, which are evenly distributed on the pipe end frame 270, with equal spacing between each other, and are used to assist the top lifting wheel 230 to shape the tamping rod assembly;

[0079] The shaping winch assembly includes a retractable winch 281 and a connecting rope 282; the retractable winch 281 is positioned on the pipe end frame 270, one end of the connecting rope 282 is wound around and positioned on the retractable winch 281, and the other end is fixed to the tail end of the rod end cone 310 of the tamping rod assembly near the edge; the spacing between adjacent fixed points of the shaping winch assembly on the rod end cone 310 is equal.

[0080] Preferably, the number of the shaping winch components is 2 or 3.

[0081] like Figure 8 and Fig. 9As shown, the tamping rod assembly is used to probe into the blocked position for dredging, and includes a rod end cone 310, a base rod 320 and a rear rod; the rod end cone 310 is a hard cone; the base rod 320 is a hard rod body, which is coaxial with the rod end cone 310 and has one end fixed to the tail end of the rod end cone 310, and is shorter than the base pipe 210; the rear rod is composed of a plurality of rod bodies spliced ​​together, one end of the rear rod is fixed to the end of the base rod 320 away from the rod end cone 310, and the other end is fixed to the rod retracting assembly 400;

[0082] The rear rod is composed of a plurality of rod units 330 and a plurality of filling compression springs 340;

[0083] The rod unit 330 is a hard straight round rod with a length of less than 50 cm, and a front column block 331 and a rear column block 332 are respectively provided at both ends; the front column block 331 and the rear column block 332 are both hard cylinders, and the surfaces coaxial with the rod unit 330 and away from the rod unit 330 are flat; the diameters of the front column block 331 and the rear column block 332 are two-thirds to three-quarters of the diameter of the rod unit 330;

[0084] The filling compression spring 340 is a metal compression spring, which is located between the two rod units 330 and is sleeved on the front column block 331 and the rear column block 332; both ends of the filling compression spring 340 are in contact with the end of the rod unit 330; when the filling compression spring 340 is in a non-compressed state, its length is greater than half of the length of the rod unit 330, and at this time, the distance between the front column block 331 and the rear column block 332 of the two adjacent rod units 330 is less than half of the length of the filling compression spring 340.

[0085] The axial direction of the rod unit 330 fixed to the rod retracting and extending assembly 400 is the same as the tangential direction of the rod retracting and extending assembly 400 .

[0086] Preferably, tubular rubber rings are fixedly mounted on the top lifting wheel 230 and the bottom loading wheel 250 , and the tubular rubber rings are used to protect the outer side walls of the top lifting wheel 230 and the bottom loading wheel 250 to reduce wear of the two.

[0087] Further, such as Fig.10 As shown, in order to facilitate the conduction of force and prevent the tamping rod assembly from being scattered in the outer cover box 140, the diameter of the rod retracting assembly 400 is greater than 80 cm, and the number of turns of the rear rod wound on the rod retracting assembly 400 is less than 1 turn.

[0088] Preferably, in order to achieve greater stability, increase the number of turns of the rear rod wound on the rod retracting assembly 400, increase the total length of the tamping rod assembly and reduce the volume of the entire device; both ends of the filling compression spring 340 are fixed to the end of the rod unit 330 to which it is closely attached; the number of turns of the rear rod wound on the rod retracting assembly 400 is greater than 4 turns; the diameter of the rod retracting assembly 400 is less than 50 cm.

[0089] Furthermore, the height of the flat columnar space formed by the outer cover box 140 and the top rotating disk 130 is less than 1.2 times the diameter of the rod unit 330 .

[0090] The power assembly is used to provide power for the operation of the various components of the cement kiln preheater efficient blockage clearing and maintenance device of this application, and the control unit plays a role in controlling the coordinated operation of the various components of the cement kiln preheater efficient blockage clearing and maintenance device. Both are prior arts and will not be elaborated here.

[0091] Preferably, the control unit is a combination of a programmable logic controller and control buttons.

[0092] When the cement kiln preheater efficient clearing and maintenance device of the embodiment of the present application is used:

[0093] Under normal conditions, the rear rod is rolled up by the reeling of the rod retracting assembly 400 and the push of the top lifting wheel 230;

[0094] 1. When dredging is required, first move the device of the present application as a whole to the target position, and then control the operation of the bearing base to adjust the spatial position of the shaping bearing tube assembly according to the hole door position, and then adjust the insertion direction of the tamping rod assembly;

[0095] 2. After determining the penetration (unblocking) direction, the control rod retracting assembly 400 is operated, and at the same time, the top lifting wheel 230 is controlled to move downward to contact the tamping rod assembly and rotate, so that the tamping rod assembly is ejected from the base pipe 210 through friction; at this time, the rear rod is gradually ejected from the guide pipe 150 and enters the inside of the base pipe 210;

[0096] 3. At this time, the shaping winch assembly is controlled to operate, and the overall output of the tamping rod assembly is limited by pulling, so that the tamping rod assembly is compressed due to the restraint of the connecting rope 282, so that the front column block 331 and the rear column block 332 of the adjacent rod unit 330 collide with each other, so that the tamping rod assembly output from the base pipe 210 forms a straight hard long rod;

[0097] 4. The operation of the coordinated control rod retracting assembly 400, the lifting and rotation of the top lifting wheel 230, and the operation of the shaping winch assembly enable the tamping rod assembly to complete the insertion and retraction actions; during this period, the deformation of the bearing base can be flexibly adjusted as needed, and then the insertion angle of the tamping rod assembly can be flexibly adjusted, thereby greatly improving the dredging efficiency.

[0098] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0099] The invention solves the technical problems in the prior art of poor flexibility, large space required for operation and poor applicability of the preheater clearing and maintenance device, and achieves the technical effects of small space required for operation of the cement kiln preheater efficient clearing and maintenance device, good flexibility, strong applicability, convenient and efficient operation process and easy change of the penetration angle of the tamping rod.

[0100] Embodiment 2

[0101] In order to further improve the practicality and applicability of the present application and improve the working efficiency, the present application embodiment optimizes and improves the structure of the shaping bearing tube assembly and the structure of the rod unit 330 on the basis of the above embodiment, and adds an extrusion positioning block 160 on the guide tube 150; so that the tamping rod assembly can rotate around its own axis during the dredging process, specifically:

[0102] like Fig.11 As shown, the tube positioning body 211 includes a base frame 212 and a positioning bearing 213;

[0103] The base frame 212 is a plate-shaped, rod-shaped or frame-shaped structure, fixed on the top rotating disk 130, and plays a bearing role;

[0104] The positioning bearing 213 is set and positioned on the base tube 210, and is coaxial with the base tube 210; the outer ring of the positioning bearing 213 is fixed on the base frame 212; due to the presence of the positioning bearing 213, the base tube 210 can rotate around its own axis relative to the base frame 212;

[0105] The shaping bearing tube assembly further includes a tube driving assembly 260; the tube driving assembly 260 is used to drive the base tube 210 to rotate around its own axis, and is a combination of a motor, a gear and a gear ring, wherein the motor is fixed on the tube positioning body 211, the gear is fixed on the output shaft of the motor on the tube positioning body 211, and the gear ring is sleeved and fixed on the base tube 210;

[0106] The top of the guide tube 150 is provided with a through slot, and an extrusion positioning block 160 is positioned on the through slot; the extrusion positioning block 160 is a rubber block, which is inserted into the through slot on the guide tube 150; a telescopic rod is provided on the guide tube 150, and the telescopic rod drives the extrusion positioning block 160 to move up and down under the coordinated control of the power assembly and the control unit, so as to fix the rear rod in the guide tube 150 by extrusion as needed;

[0107] The end of the front columnar block 331 away from the rod unit 330 is fixed with a front protrusion 333, and the end of the rear columnar block 332 away from the rod unit 330 is provided with a matching groove 334 matching with the front protrusion 333;

[0108] The front protrusion 333 is a rectangular hard block. When the filling compression spring 340 is in a normal state (neither compressed nor stretched) and when it is in a compressed state, the front protrusion 333 is inserted into the matching groove 334 to transmit power from the base tube 210. The cooperation between the front protrusion 333 and the matching groove 334 does not completely restrict the relative movement of the two adjacent rod units 330, and will not affect the bending and winding of the rear rod.

[0109] The end of the filling compression spring 340 is in close contact with the rod unit 330 but is not fixed on the rod unit 330 .

[0110] When the tamping rod assembly needs to be inserted into the blocked position for rotation, firstly, the extrusion positioning block 160 is controlled to press down to fix the rod unit 330 in the guide tube 150; then the top lifting wheel 230 is controlled to operate, driving the rod unit 330 closest to the rod unit 330 in the guide tube 150 to move, so that the matching groove 334 on the rod unit 330 closest to the rod unit 330 in the guide tube 150 is disengaged from the front protrusion 333 of the rod unit 330 in the guide tube 150; thereafter, the control tube drive assembly 260 is controlled to operate to drive the base tube 210 to rotate and then drive the tamping rod assembly to rotate (unidirectional continuous rotation or intermittent reciprocating rotation); if the tamping rod assembly needs to be controlled to extend and retract during the rotation, it is achieved by controlling the operation of the shaping winch assembly; when the rotation is ended, it is ensured that the front protrusion 333 can still be inserted into the matching groove 334.

[0111] Preferably, the corners of the surface of the front protrusion 333 away from the rod unit 330 are rounded.

[0112] Preferably, the rod end cone 310 is provided with a plurality of rows of teeth; when the rod end cone 310 rotates, the teeth thereon cut the blocking position by rotating themselves.

[0113] Preferably, the structure of the rod end cone 310 is the same as the structure of a clearing cutter head of a cement kiln preheater clearing mechanical device disclosed in a Chinese invention patent with patent authorization number CN114754593B. The end of the steel wire rope that drives the clearing cutter head to open and close, away from the clearing cutter head, is positioned on the retractable reel, and the retractable reel is positioned on the pipe end frame 270. The retractable reel rotates under the coordinated control of the power assembly and the control unit.

[0114] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cement kiln preheater high-efficiency clearing and maintenance device, characterized by: It comprises a bearing base, a shaping bearing tube assembly, and a tamping rod assembly; the bearing base is a combination of a telescopic rod and a rotating plate, and a reel-shaped rod retracting assembly (400) is positioned on the top; The shaping bearing pipe assembly comprises a straight base pipe (210) fixed on a bearing base, a top lifting wheel (230), and a plurality of shaping winch assemblies positioned on the side wall of the base pipe (210); the top lifting wheel (230) is controlled to penetrate into the through slot at the top of the base pipe (210) and rotate, thereby driving the tamping rod assembly in the base pipe (210) to move and deform; The tamping rod assembly penetrates the base pipe (210), and comprises a rod end cone (310), a base rod (320) located at the tail of the rod end cone (310), and a rear rod having one end fixed to the base rod (320) and the other end fixed to the rod retracting and extending assembly (400); The rope body wound on the shaping hoisting assembly is positioned at the tail of the rod end cone (310), and is pulled in cooperation with the top lifting wheel (230) to shape the tamping rod assembly; The rear rod comprises a plurality of rod units (330) and a plurality of filling compression springs (340), which are rolled up on a rod retracting and releasing assembly (400); a front column block (331) and a rear column block (332) are respectively arranged at two ends of the rod unit (330); the filling compression spring (340) is located between the two rod units (330), is sleeved on the front column block (331) and the rear column block (332), and both ends of the filling compression spring are in contact with the end of the rod unit (330).

2. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 1, characterized in that: The bearing base comprises a bottom telescopic rod (110), a carrier plate (120), a top rotating plate (130) and an outer cover box (140); The bottom telescopic rod (110) is a rigid telescopic rod arranged longitudinally; The carrier plate (120) is a hard circular plate, and the center position of the bottom is positioned at the top of the bottom telescopic rod (110); The carrier plate (120) is rotatably connected to the bottom telescopic rod (110), and rotates under the coordinated control of the power assembly and the control unit, and the axial direction of the rotation axis is perpendicular to the axial direction of the bottom telescopic rod (110); The top rotating disk (130) is a hard disk, which rotates around its own axis and is connected to the top of the carrier disk (120) and is coaxial with the carrier disk (120); The outer cover box (140) is a hard cover body, which is cylindrical in shape as a whole, and the bottom is fixed on the top surface of the top rotating disk (130), and together with the top rotating disk (130) forms a flat columnar space; A guide tube (150) is provided on the side wall of the outer cover box (140); the overall length direction of the guide tube (150) is the same as the radial direction of the carrier plate (120), and one end of the guide tube (150) is connected to the internal space of the outer cover box (140).

3. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 2, characterized in that: The shaping load-bearing pipe assembly comprises a base pipe (210), a side load bar (220), a top lifting wheel (230), a wheel carrier (240), a bottom load wheel (250), a pipe end frame (270) and a shaping winch assembly; The base pipe (210) is a hard round pipe, the axial direction of which is the same as the radial direction of the top rotating disk (130), and is fixed on the top rotating disk (130) through a pipe positioning body (211), and a plurality of through grooves are provided on the top and bottom, and these through grooves are used to facilitate the top lifting wheel (230) and the bottom load wheel (250) to contact the tamping rod assembly in the base pipe (210); The side load strips (220) are located on both sides of the base tube (210), and the length direction is the same as the axial direction of the base tube (210); The top lifting wheel (230) is arranged transversely, with its axial direction perpendicular to the axial direction of the base pipe (210), and has a built-in motor. Both ends are positioned on the wheel carrier (240); the wheel carrier (240) is positioned on the side load bar (220) and is a telescopic rod structure; the top lifting wheel (230) is driven by the wheel carrier (240) to enter the through groove; The bottom load wheel (250) is rotatably connected to the side load bar (220) at both ends and is located in a through groove at the bottom of the base pipe (210), and there are multiple bottom load wheels; The pipe end bracket (270) is fixed on the side wall of the base pipe (210).

4. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 1, characterized in that: In a non-compressed state, the length of the filling compression spring (340) is greater than half the length of the rod unit (330), and at this time, the distance between the front columnar block (331) and the rear columnar block (332) of two adjacent rod units (330) is less than half the length of the filling compression spring (340).

5. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 1, characterized in that: The front column block (331) and the rear column block (332) are both hard cylinders, and the surfaces coaxial with the rod unit (330) and away from the rod unit (330) are planes; the diameters of the front column block (331) and the rear column block (332) are two-thirds to three-quarters of the diameter of the rod unit (330).

6. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 1, characterized in that: The shaping winch assembly comprises a retractable winch (281) and a connecting rope (282); The retractable winch (281) is positioned on the pipe end frame (270); one end of the connecting rope (282) is wound around and positioned on the retractable winch (281); the other end is fixed to a position close to the edge of the tail end of the rod end cone (310) of the tamping rod assembly; and the spacing between adjacent fixing points of the shaping winch assembly on the rod end cone (310) is equal.

7. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to any one of claims 1 to 6, characterized in that: The diameter of the rod retracting and releasing assembly (400) is greater than 80 centimeters, and the number of turns of the rear rod wound on the rod retracting and releasing assembly (400) is less than 1 turn.

8. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to any one of claims 1 to 6, characterized in that: Both ends of the filling compression spring (340) are fixed to the ends of the rod unit (330) to which it is closely attached; the number of turns of the rear rod wound on the rod retracting assembly (400) is greater than 4 turns; and the diameter of the rod retracting assembly (400) is less than 50 centimeters.

9. The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 2, characterized in that: Also includes an extrusion positioning block (160); The pipe positioning body (211) comprises a base frame (212) and a positioning bearing (213); The base frame (212) is fixed on the top rotating disk (130); the positioning bearing (213) is sleeved and positioned on the base tube (210); the outer ring of the positioning bearing (213) is fixed on the base frame (212); The shaping support tube assembly further comprises a tube driving assembly (260) for driving the base tube (210) to rotate around its own axis; a through slot is provided at the top of the guide tube (150), and an extrusion positioning block (160) is positioned on the through slot; the extrusion positioning block (160) fixes the rear rod in the guide tube (150) by extrusion as required; The end of the front columnar block (331) away from the rod unit (330) is fixed with a front protrusion (333), and the end of the rear columnar block (332) away from the rod unit (330) is provided with a matching groove (334) matching with the front protrusion (333); The front protrusion (333) is a rectangular hard block, and the front protrusion (333) is inserted into the matching groove (334) when the filling compression spring (340) is in a normal state and when it is in a compressed state, so as to transmit power from the base pipe (210); The end of the filling compression spring (340) is in close contact with the rod unit (330) but is not fixed on the rod unit (330).

10. A cement kiln preheater clearing and maintenance method, characterized in that: The cement kiln preheater high-efficiency blockage clearing and maintenance device according to claim 3 is equipped with the following steps: Step 1: When dredging is required, first move the device as a whole to the target position, and then control the operation of the bearing base to adjust the spatial position of the shaping bearing tube assembly according to the hole position, and then adjust the insertion direction of the tamping rod assembly; Step 2: After determining the insertion direction, the control rod retracting assembly (400) is operated and the top lifting wheel (230) is controlled to move downward to contact the ram rod assembly and rotate, so that the ram rod assembly is ejected from the base pipe (210) through friction; Step 3: At this time, the shaping winch assembly is controlled to operate, and the overall output of the tamping rod assembly is limited by pulling, so that the tamping rod assembly is compressed due to the restraint of the connecting rope (282), so that the front column block (331) and the rear column block (332) of the adjacent rod unit (330) are in contact with each other, so that the tamping rod assembly output from the base pipe (210) forms a straight hard long rod; Step 4: Coordinate the operation of the control rod retracting assembly (400), the lifting and rotation of the top lifting wheel (230), and the operation of the shaping winch assembly, so that the tamping rod assembly completes the insertion and retraction actions; during this period, the deformation of the bearing base can be flexibly adjusted as needed, thereby flexibly adjusting the insertion angle of the tamping rod assembly.

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