Coal injection duct device convenient to clean
By designing a heat-resistant steel pipe with a refractory semi-ring fitted on its surface in the pulverized coal injection pipe device, and utilizing fastening and rotating components, the problem of poor wear resistance of the pulverized coal injection pipe was solved, enabling rapid replacement and cleaning of refractory materials, and improving the service life and production efficiency of the equipment.
Patent Information
- Application Number
- CN202520319671.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing pulverized coal injection pipes have poor wear resistance during use, which leads to frequent replacement and cleaning, requiring the disassembly of the entire burner, affecting the operation of the production line and potentially damaging the steel structure.
A pulverized coal injection pipe device that is easy to clean is designed. The device consists of first and second refractory semi-rings fitted onto the surface of a heat-resistant steel pipe. By utilizing fastening components, fixing components, and rotating components, the refractory semi-rings can be quickly disassembled and replaced without disassembling the burner.
This technology enables rapid replacement of refractory materials without affecting the normal operation of the production line, improving cleaning efficiency, extending equipment lifespan, and reducing maintenance costs.
Smart Images
Figure CN223910003U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal injection pipe technical field, concretely is coal injection pipe device convenient to clean. BACKGROUND
[0002] Coal injection pipe is very widely used on rotary kiln equipment, and is very important, mainly sends coal and air to rotary kiln head, and first can reduce energy consumption, improves calcination output, can also better improve the service life of rotary kiln equipment, greatly increases the running speed of equipment, reduces harmful substances, improves output, and through coal injection pipe replaces existing plasma gun, can greatly reduce cost, but the traditional coal injection pipe pours refractory material on heat-resistant steel pipe usually, and this material needs to have good refractoriness and wear resistance simultaneously, however, the existing cast material is often poor in wear resistance, needs to be replaced and cleaned after using for a period of time, in addition, since the cast material is integrally cast on the steel pipe, the burner needs to be integrally disassembled and installed every time replacement or repair, which not only affects the normal operation of the production line, but also can cause the steel structure of coal injection pipe to be damaged, therefore, we propose coal injection pipe device convenient to clean. SUMMARY
[0003] The utility model solves the technical problem of overcoming the existing defects, provides coal injection pipe device convenient to clean, can replace the refractory material quickly without disassembling the burner integrally, improves cleaning efficiency, and can effectively solve the problems in the background art.
[0004] To realize the above-mentioned purpose, the utility model provides the following technical scheme: coal injection pipe device convenient to clean, including heat-resistant steel pipe and fixed assembly,
[0005] Heat-resistant steel pipe: the surface is sleeved with first refractory half ring and second refractory half ring, the first refractory half ring and second refractory half ring are clamped together, the surface of the first refractory half ring is installed with two corresponding reset components, the lower portion of the reset component is installed with fastening assembly, and the two fastening assemblies are connected with the second refractory half ring;
[0006] The fixed assembly comprises a mounting groove, a sliding rod, a spring, a toothed plate, a first L-shaped connecting strip and a second L-shaped connecting strip, two corresponding mounting grooves are formed in the left and right sides of the second fire-resistant half ring, two corresponding sliding holes are formed in the front and back sides of the mounting groove, a sliding rod is slidably connected in the sliding hole, two sliding rods are connected by a spring, four corresponding clamping holes are formed in the front and back sides of the first fire-resistant half ring, four sliding rods are clamped in the clamping holes, two corresponding first L-shaped connecting strips are fixed on the circumferential surface of the two sliding rods on the back side, two corresponding second L-shaped connecting strips are fixed on the circumferential surface of the two sliding rods on the front side, the side surfaces of the first L-shaped connecting strips and the second L-shaped connecting strips are fixed with toothed plates, the two toothed plates in the mounting groove are parallel, and a rotating assembly is mounted in the mounting groove, so that the first fire-resistant half ring and the second fire-resistant half ring are preliminarily connected through the fixed assembly.
[0007] Further, the rotating assembly comprises a gear, a rotating shaft and a rotating disc, the gear is rotatably connected in the mounting groove, the gear is engaged with the two toothed plates in the mounting groove, the rotating shaft is fixed on the end surface of the gear, two corresponding connecting holes are formed in the left and right ends of the circumferential surface of the second fire-resistant half ring, the rotating shaft is rotatably connected in the connecting hole, and the rotating disc is fixed on the end surface of the rotating shaft, so that the four toothed plates are driven to move through the rotating assembly.
[0008] Further, the reset assembly comprises a fixed block, a connecting rod, a fixed disc and a torsion spring, two corresponding fixed blocks are fixed on the left and right sides of the circumferential surface of the first fire-resistant half ring, an installation hole is formed in the middle of the fixed block, a connecting rod is rotatably connected in the two installation holes, two corresponding fixed discs are fixed on the front and back ends of the connecting rod, two corresponding torsion springs are sleeved on the circumferential surface of the connecting rod, one end of the torsion spring is fixed on the side surface of the fixed block, and the other end of the torsion spring is fixed on the end surface of the fixed disc, so that the two fastening frames are reset through the reset assembly.
[0009] Further, the fastening assembly comprises a fastening frame, a fastening rod and a fastening groove, the fastening frame is fixed on the circumferential surface of the connecting rod, the fastening rod is fixed on the lower side of the fastening frame, two corresponding fastening grooves are formed in the left and right sides of the circumferential surface of the second fire-resistant half ring, and the fastening rod is clamped in the fastening groove, so that the first fire-resistant half ring and the second fire-resistant half ring are further connected through the fastening assembly.
[0010] Further, the connecting rod is fixed on the circumferential surface of the connecting rod, and the side surface of the driving plate is provided with uniformly distributed anti-skid grooves, so that the user can rotate the two connecting rods through the driving plate.
[0011] Compared with the prior art, the beneficial effects of the utility model are that the coal injection pipe device convenient to clean has the following advantages:
[0012] The first refractory half ring and the second refractory half ring are assembled on the surface of the heat-resistant steel pipe through the fastening assembly and the fixing assembly, and the first refractory half ring and the second refractory half ring can be quickly disassembled by disassembling the fastening assembly and the fixing assembly during use, so that the first refractory half ring and the second refractory half ring can be quickly replaced without disassembling the burner as a whole, and the cleaning efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a front side structure schematic view of the utility model;
[0014] Fig. 2 It is a fixing assembly structure schematic view of the utility model;
[0015] Fig. 3 It is a rotating assembly structure schematic view of the utility model.
[0016] In the drawing: 1 heat-resistant steel pipe, 2 first refractory half ring, 3 second refractory half ring, 4 fixing assembly, 41 installation groove, 42 sliding rod, 43 spring, 44 toothed plate, 45 first L-shaped connecting strip, 46 second L-shaped connecting strip, 5 rotating assembly, 51 gear, 52 rotating shaft, 53 rotating disc, 6 reset assembly, 61 fixed block, 62 connecting rod, 63 fixed disc, 64 torsion spring, 7 fastening assembly, 71 fastening frame, 72 fastening rod, 73 fastening groove, 8 push plate. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0018] Please refer to Figs. 1-3 The embodiment provides a technical scheme: a coal injection pipe device convenient to clean, which comprises a heat-resistant steel pipe 1 and a fixing assembly 4.
[0019] The heat-resistant steel pipe 1 is sleeved with the first fire-resistant half ring 2 and the second fire-resistant half ring 3, the first fire-resistant half ring 2 and the second fire-resistant half ring 3 are clamped together, the surface of the first fire-resistant half ring 2 is provided with two corresponding reset assemblies 6, the lower part of the reset assembly 6 is provided with a fastening assembly 7, the two fastening assemblies 7 are connected with the second fire-resistant half ring 3, the reset assembly 6 comprises a fixed block 61, a connecting rod 62, a fixed disc 63 and a torsion spring 64, the left and right sides of the circumferential surface of the first fire-resistant half ring 2 are fixedly provided with two corresponding fixed blocks 61, the middle part of the fixed block 61 is provided with a mounting hole, the inside of the two mounting holes is rotatably connected with the connecting rod 62, the front and rear ends of the connecting rod 62 are fixedly provided with two corresponding fixed discs 63, the circumferential surface of the connecting rod 62 is sleeved with two corresponding torsion springs 64, one end of the torsion spring 64 is fixed on the side surface of the fixed block 61, the other end of the torsion spring 64 is fixed on the end surface of the fixed disc 63, the fastening assembly 7 comprises a fastening frame 71, a fastening rod 72 and a fastening groove 73, the circumferential surface of the connecting rod 62 is fixedly provided with the fastening frame 71, the lower side of the fastening frame 71 is fixedly provided with the fastening rod 72, the left and right sides of the circumferential surface of the second fire-resistant half ring 3 are provided with two corresponding fastening grooves 73, the fastening rod 72 is clamped in the inside of the fastening groove 73, the first fire-resistant half ring 2 and the second fire-resistant half ring 3 are further connected through the setting of the fastening assembly 7, and the two fastening frames 71 are reset through the setting of the reset assembly 6;
[0020] The fixed assembly 4 comprises an installation groove 41, a sliding rod 42, a spring 43, a toothed plate 44, a first L-shaped connecting strip 45 and a second L-shaped connecting strip 46, two corresponding installation grooves 41 are formed in the left and right sides of the inside of the second fire-resistant half ring 3, two corresponding sliding holes are formed in the front and rear sides of the inside of the installation groove 41, the inside of the sliding hole is slidably connected with the sliding rod 41, the two sliding rods 41 are connected through the spring 43, four corresponding clamping holes are formed in the front and rear sides of the first fire-resistant half ring 2, the four sliding rods 41 are clamped in the inside of the four clamping holes, the circumferential surface of the two sliding rods 42 on the rear side is fixedly provided with two corresponding first L-shaped connecting strips 45, the circumferential surface of the two sliding rods 42 on the front side is fixedly provided with two corresponding second L-shaped connecting strips 46, the side surface of the first L-shaped connecting strip 45 and the second L-shaped connecting strip 46 is fixedly provided with the toothed plate 44, the two toothed plates 44 located in the inside of the installation groove 41 are parallel, the inside of the installation groove 41 is provided with the rotating assembly 5, the rotating assembly 5 comprises a gear 51, a rotating shaft 52 and a rotating disc 53, the inside of the installation groove 41 is rotatably connected with the gear 51, the gear 51 is engaged with the two toothed plates 44 located in the inside of the installation groove 41, the end surface of the gear 51 is fixedly provided with the rotating shaft 52, two corresponding connecting holes are formed in the left and right ends of the circumferential surface of the second fire-resistant half ring 3, the rotating shaft 52 is rotatably connected in the inside of the connecting hole, the end surface of the rotating shaft 52 is fixedly provided with the rotating disc 53, the four toothed plates 44 are moved through the setting of the rotating assembly 5, and the first fire-resistant half ring 2 and the second fire-resistant half ring 3 are preliminarily connected through the setting of the fixed assembly 4.
[0021] The circumferential surface of the connecting rod 62 is fixed with the actuating plate 8, the side surface of the actuating plate 8 is provided with the anti-skid grooves which are uniformly distributed, and the user can rotate the two connecting rods 62 through the actuating plate 8.
[0022] The working principle of the coal injection pipe device convenient to clean is as follows: when in use, the first refractory half ring 2 and the second refractory half ring 3 are assembled on the surface of the heat-resistant steel pipe 1, after assembly, the four sliding rods 42 enter the interiors of the four corresponding clamping holes opened on the front and rear sides of the first refractory half ring 2 under the action of the two springs 43, in this case, the first refractory half ring 2 and the second refractory half ring 3 can be preliminarily connected, and the two connecting rods 62 are rotated under the action of the four torsion springs 64, so that the two fastening frames 71 are rotated to drive the two fastening rods 72 to be clamped in the interiors of the two fastening grooves 73, in this case, the first refractory half ring 2 and the second refractory half ring 3 can be further connected, after connection, the assembly of the first refractory half ring 2 and the second refractory half ring 3 can be completed, when disassembling, the two gears 51 are rotated to drive the front and rear four toothed plates 44 to move by rotating the two rotating discs 53, so that the two first L-shaped connecting strips 45 and the two second L-shaped connecting strips 46 are moved to drive the four sliding rods 42 to move away from the four clamping holes opened on the front and rear sides of the first refractory half ring 2, then the two fastening rods 72 are separated from the two fastening grooves 73 by actuating the two connecting rods 62 through the two actuating plates 8, after separation, the first refractory half ring 2 and the second refractory half ring 3 can be disassembled, in this case, the first refractory half ring 2 and the second refractory half ring 3 can be quickly replaced without disassembling the burner as a whole, the cleaning efficiency is improved, and the first refractory half ring 2 and the second refractory half ring 3 are both made of refractory material.
[0023] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.
Claims
1. A coal injection pipe arrangement which is easy to clean, characterized in that: It comprises a heat-resistant steel pipe (1) and a fixing assembly (4); The heat-resistant steel pipe (1) is provided with a first fire-resistant half ring (2) and a second fire-resistant half ring (3) on the surface, the first fire-resistant half ring (2) and the second fire-resistant half ring (3) are clamped together, the surface of the first fire-resistant half ring (2) is provided with two corresponding reset assemblies (6), the lower part of the reset assembly (6) is provided with a fastening assembly (7), and the two fastening assemblies (7) are connected with the second fire-resistant half ring (3); The fixing assembly (4) comprises a mounting groove (41), a sliding rod (42), a spring (43), a toothed plate (44), a first L-shaped connecting strip (45) and a second L-shaped connecting strip (46), two corresponding mounting grooves (41) are formed in the left and right sides of the second fire-resistant half ring (3), two corresponding sliding holes are formed in the front and rear sides of the mounting groove (41), the sliding hole is slidably connected with the sliding rod (41), the two sliding rods (41) are connected through the spring (43), four corresponding clamping holes are formed in the front and rear sides of the first fire-resistant half ring (2), the four sliding rods (41) are clamped in the four clamping holes, two corresponding first L-shaped connecting strips (45) are fixed on the circumferential surface of the two sliding rods (42) on the rear side, two corresponding second L-shaped connecting strips (46) are fixed on the circumferential surface of the two sliding rods (42) on the front side, the side surfaces of the first L-shaped connecting strips (45) and the second L-shaped connecting strips (46) are fixed with toothed plates (44), the two toothed plates (44) in the mounting groove (41) are parallel, and a rotating assembly (5) is mounted in the mounting groove (41).
2. The coal pipe arrangement for ease of cleaning of claim 1, wherein: The rotating assembly (5) comprises a gear (51), a rotating shaft (52) and a rotating disc (53), the gear (51) is rotatably connected in the mounting groove (41), the gear (51) is meshed with the two toothed plates (44) in the mounting groove (41), the rotating shaft (52) is fixed on the end surface of the gear (51), two corresponding connecting holes are formed in the left and right ends of the circumferential surface of the second fire-resistant half ring (3), the rotating shaft (52) is rotatably connected in the connecting hole, and the rotating disc (53) is fixed on the end surface of the rotating shaft (52).
3. The cleanable coal pipe arrangement of claim 1, wherein: The reset assembly (6) comprises a fixed block (61), a connecting rod (62), a fixed disc (63) and a torsion spring (64), two corresponding fixed blocks (61) are fixed on the circumferential surface of the first fire-resistant half ring (2), a mounting hole is formed in the middle of the fixed block (61), a connecting rod (62) is rotatably connected in the two mounting holes, two corresponding fixed discs (63) are fixed on the front and rear ends of the connecting rod (62), two corresponding torsion springs (64) are sleeved on the circumferential surface of the connecting rod (62), one end of the torsion spring (64) is fixed on the side surface of the fixed block (61), and the other end of the torsion spring (64) is fixed on the end surface of the fixed disc (63).
4. The cleanable coal pipe arrangement of claim 3, wherein: The fastening assembly (7) comprises a fastening frame (71), a fastening rod (72) and a fastening groove (73), the fastening frame (71) is fixed on the circumferential surface of the connecting rod (62), the lower side of the fastening frame (71) is fixed with the fastening rod (72), and the circumferential surface of the second fire-resistant half ring (3) is provided with two corresponding fastening grooves (73) on the left and right sides, and the fastening rod (72) is clamped in the fastening grooves (73).
5. The cleanable coal pipe arrangement of claim 1, wherein: A push plate (8) is fixed on the circumferential surface of the connecting rod (62), and anti-skid grooves are uniformly distributed on the side surface of the push plate (8).