Long-service-life protective plate for cement dry-process rotary kiln

Abstract

The utility model discloses a long-life guard plate for a cement dry method rotary kiln, which comprises a plurality of arc plate components, the arc plate components are spliced together, a shroud ring component is arranged among the arc plate components, four fixing rods are inserted into the outer wall of one side of the shroud ring component, the shroud ring component comprises four shroud ring pieces, the four shroud ring pieces are spliced together, and the four shroud ring pieces are arranged on the outer wall of one side of the shroud ring component. The hoop ring piece comprises a hoop ring, an inserting groove is formed in one end of the hoop ring, inserting holes are formed in the two sides of the inner wall of the inserting groove, an inserting block is integrally formed at the other end of the hoop ring, one end of the inserting block is inserted into the inserting groove, an inserting hole is formed in the outer wall of one side of the inserting block, and a fixing rod is inserted into the inserting hole and the inserting hole; the utility model has the beneficial effects that the shroud ring assembly can be inserted on the four arc plate assemblies, so that the four arc plate assemblies are firmly fixed together, the problem of engine looseness among protective plates during long-time operation of the rotary kiln is avoided, and the problem of leakage of the rotary kiln caused by loose connection among the protective plates is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a long-life guard plate for a cement dry-process rotary kiln. Background Art

[0002] The rotary kiln is a core equipment commonly used in the incineration process. The stable operation of the incineration system depends on whether the rotary kiln can operate continuously and normally. The interior of the rotary kiln is generally equipped with a refractory guard plate structure, which is generally made of high-chromium heat-resistant steel. Several kiln mouth guard plate monomers are installed in the kiln by bolts, forming a closed circle together. When in use, a refractory castable protective layer is built on the working surface of the kiln mouth guard plate to achieve the purpose of protecting the kiln.

[0003] For example, a kiln mouth guard plate for a cement dry process rotary kiln with application number CN200620034633.5 and authorization announcement date 20070725 includes a port vertical plate and a horizontal seat plate, wherein the upper end of the port vertical plate is provided with an arc-shaped edge, and the ends of both sides of the port vertical plate are provided with a pair of interlocking devices. One improvement is that the pair of interlocking devices is a interlocking head and a matching interlocking seat. Another improvement is that the working surface of the port vertical plate is provided with an attachment groove for pouring castables. Still another improvement is that a triangular tie bar is provided at the intersection of the port vertical plate and the horizontal seat plate. The utility model has an ideal protection effect on the kiln mouth, and adjacent kiln mouth guard plates can be interlocked with each other, so that the kiln mouth cylinder is not burned by flames, which prolongs the service life of the kiln mouth cylinder. It also has the characteristics of long service life, high overall strength, high temperature resistance, and fracture resistance.

[0004] Traditional rotary kiln guard plates are mostly installed inside the kiln by bolts, and multiple adjacent guard plates are fixed together by splicing. However, the splicing method is not strong enough to ensure the firmness of multiple guard plates. Therefore, it is urgent to design a long-life cement dry-process rotary kiln guard plate to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a long-life cement dry process rotary kiln guard plate to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A long-life guard plate for a cement dry-process rotary kiln comprises a plurality of arc plate assemblies, which are spliced ​​together, a hoop assembly is arranged between the plurality of arc plate assemblies, and four fixing rods are inserted into the outer wall of one side of the hoop assembly, the hoop assembly comprises four hoop pieces, the four hoop pieces are spliced ​​together, the hoop piece comprises a hoop, one end of the hoop is provided with a plug-in groove, and both sides of the inner wall of the plug-in groove are provided with plug-in holes, the other end of the hoop is integrally formed with a plug-in block, and one end of the plug-in block is inserted into the inside of the plug-in groove, an outer wall of one side of the plug-in block is provided with an insertion hole, and the fixing rod is inserted into the insertion hole and the insertion hole.

[0008] Furthermore, the arc plate assembly comprises an arc plate, a plurality of ribs are welded on the outer wall of the top of the arc plate, and a clamping end is integrally formed at one end of the arc plate.

[0009] Furthermore, a through hole is formed on an outer wall of one side of the rib plate, and the hoop is inserted into the through hole.

[0010] Furthermore, a second clamping end is integrally formed at the other end of the arc plate, and the second clamping end is in contact with the first clamping end.

[0011] Furthermore, a card slot is provided on an outer wall on one side of the second card-connecting end, and a card block is integrally formed on an outer wall on one side of the first card-connecting end, and the card block is carded in the card slot.

[0012] Furthermore, the arc plate includes a metal layer, an outer wall on the top side of the metal layer is provided with a heat-insulating layer, and an outer wall on the bottom side of the metal layer is provided with a heat-resistant layer.

[0013] In the above technical scheme, the utility model provides a long-life guard plate for a cement dry-process rotary kiln, (1) through the provision of a hoop ring assembly, the hoop ring assembly can be inserted into four arc plate assemblies, so that the four arc plate assemblies are firmly fixed together, thereby avoiding the problem of loosening of the guard plates when the rotary kiln is operated for a long time, and preventing the guard plates from being loosely connected and leaking in the rotary kiln, thereby increasing the service life of the guard plate; (2) through the provision of a card slot and a card block, the cooperation of the card block and the card slot can form a sealing structure, which can improve the sealing between the card connection end 1 and the card connection end 2, thereby improving the sealing effect between the arc plate assemblies spliced ​​together; (3) through the provision of a fixing rod, a plug-in hole and a through hole, the design of the plug-in hole and the through hole facilitates the fixing rod to pass through the hoop ring assembly, so that multiple hoop ring assemblies can be spliced ​​together, thereby reducing the difficulty of splicing multiple sets of guard plate structures together, and facilitating the splicing of the arc plate assemblies into a cylindrical shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The utility model provides an overall structural schematic diagram of a long-life cement dry process rotary kiln guard plate embodiment.

[0016] Figure 2 The utility model provides a schematic diagram of the structure of an arc plate assembly for a long-life cement dry-process rotary kiln guard plate embodiment.

[0017] Figure 3 The present invention is a schematic diagram of the structure of an arc plate material provided for a long-life cement dry-process rotary kiln guard plate embodiment of the present invention.

[0018] Figure 4 The utility model is a schematic diagram of the structure of a hoop assembly provided in an embodiment of a guard plate for a cement dry-process rotary kiln with a long service life.

[0019] Figure 5 The utility model is a schematic diagram of the structure of a hoop ring member provided in an embodiment of a long-life cement dry-process rotary kiln guard plate.

[0020] Description of reference numerals:

[0021] 1. Arc plate assembly; 2. Hoop assembly; 3. Fixing rod; 4. Arc plate; 5. Clamping end 1; 6. Clamping block; 7. Clamping end 2; 8. Clamping groove; 9. Rib plate; 10. Through hole; 11. Hoop member; 12. Hoop; 13. Plug groove; 14. Plug hole; 15. Plug block; 16. Insert hole; 17. Metal layer; 18. Heat-resistant layer; 19. Insulation layer. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-5As shown, a long-life guard plate for a cement dry-process rotary kiln provided by an embodiment of the utility model comprises a plurality of arc plate assemblies 1, which are spliced ​​together, a hoop assembly 2 is arranged between the plurality of arc plate assemblies 1, and four fixing rods 3 are inserted into the outer wall of one side of the hoop assembly 2, the hoop assembly 2 comprises four hoop members 11, which are spliced ​​together, the hoop member 11 comprises a hoop 12, a plug-in groove 13 is provided at one end of the hoop 12, and plug-in holes 14 are provided on both sides of the inner wall of the plug-in groove 13, a plug-in block 15 is integrally formed at the other end of the hoop 12, and one end of the plug-in block 15 is inserted into the inside of the plug-in groove 13, an insertion hole 16 is provided on the outer wall of one side of the plug-in block 15, and the fixing rod 3 is inserted into the inside of the insertion hole 14 and the insertion hole 16.

[0024] Specifically, in this embodiment, a plurality of arc plate assemblies 1 are included, and the plurality of arc plate assemblies 1 are spliced ​​together. A hoop assembly 2 is provided between the plurality of arc plate assemblies 1. The hoop assembly 2 can be inserted into the four arc plate assemblies 1, so that the four arc plate assemblies 1 are firmly fixed together, so as to avoid the problem of loosening of the guard plates during long-term operation of the rotary kiln, and to prevent the leakage of the rotary kiln due to the loose connection between the guard plates. In addition, four fixing rods 3 are inserted into the outer wall of one side of the hoop assembly 2. The hoop assembly 2 includes four hoop members 11, which are spliced ​​together. The hoop member 11 includes a hoop 12, and the hoop 12 is inserted into the through hole 10, so that the hoop 12 and the through hole 10 are connected. The ribs 9 are installed together, a plug-in groove 13 is provided at one end of the hoop 12, and plug-in holes 14 are provided on both sides of the inner wall of the plug-in groove 13, and an insert block 15 is integrally formed at the other end of the hoop 12, and one end of the insert block 15 is inserted into the plug-in groove 13, and an insertion hole 16 is provided on the outer wall of one side of the insert block 15. The fixing rod 3 is inserted into the plug-in hole 14 and the insertion hole 16, so that the hoop assembly 2 is fixed, and then the above steps are repeated. Multiple spliced ​​arc plate assemblies 1 can be installed on the same fixing rod 3, so that the guard plate forms a cylindrical shape, which is convenient for fixing inside the kiln, and the fixing rod 3 is inserted into the plug-in hole 14 and the insertion hole 16.

[0025] The utility model provides a long-life guard plate for a cement dry process rotary kiln. The hoop assembly 2 can be inserted into four arc plate assemblies 1, so that the four arc plate assemblies 1 are firmly fixed together, thereby preventing the guard plates from loosening during long-term operation of the rotary kiln and preventing the guard plates from leaking due to loose connections.

[0026] In one embodiment provided by the present utility model, Figure 2As shown, the arc plate assembly 1 includes an arc plate 4, and a plurality of ribs 9 are welded on the outer wall at the top of the arc plate 4. The ribs 9 are convenient for improving the sealing between the arc plate 4 and the inner wall of the kiln. A clamping end 5 is integrally formed at one end of the arc plate 4. A through hole 10 is provided on the outer wall on one side of the rib 9. The through hole 10 is convenient for a hoop 12 to pass through the rib 9. The hoop 12 is inserted into the through hole 10. A clamping end 2 7 is integrally formed at the other end of the arc plate 4. The clamping end 2 7 is in contact with the clamping end 1 5. A clamping groove 8 is provided on the outer wall on one side of the clamping end 2 7. A clamping block 6 is integrally formed on the outer wall on one side of the clamping end 1 5. The cooperation of the clamping block 6 and the clamping groove 8 can form a sealing structure, which can improve the sealing between the clamping end 1 5 and the clamping end 2 7, so that the sealing effect between the arc plate assemblies 1 spliced ​​together is improved, and the clamping block 6 is clamped in the clamping groove 8.

[0027] In another embodiment provided by the present utility model, Figure 3 As shown, the arc plate 4 includes a metal layer 17, and an outer wall on one side of the top of the metal layer 17 is provided with an insulation layer 19, and the insulation layer 19 is made of insulation rock wool mixed with sand, which can greatly improve the insulation capacity of the arc plate 4. The outer wall on one side of the bottom of the metal layer 17 is provided with a heat-resistant layer 18, and the heat-resistant layer 18 is made of a mixture of loess, rock wool, etc., which can improve the high temperature resistance of the arc plate 4.

[0028] Working principle: When splicing the guard plate, two arc plate assemblies 1 can be spliced ​​together first. In this process, the two arc plate assemblies 1 can be quickly installed together through the cooperation of the clamping end 1 5 and the clamping end 2 7. Subsequently, the prepared hoop 12 is inserted into the through hole 10 so that the hoop 12 and the rib plate 9 are installed together. At the same time, in this process, the two adjacent hoop assemblies 12 can be spliced ​​together through the cooperation of the clamping block 6 and the clamping groove 8. The above steps are repeated later to splice four arc plate assemblies 1 and four hoop assemblies 2 together, so that the arc plate assembly 1 is installed together with the hoop assembly 2, and in this process, the cooperation of the clamping block 6 and the clamping groove 8 can form a sealing structure, which can improve the sealing between the clamping end 1 5 and the clamping end 2 7, so that the sealing effect between the arc plate assemblies 1 spliced ​​together is improved, and then the fixing rod 3 is inserted into the plug hole 14 and the insertion hole 16 to fix the hoop assembly 2, and then the above steps are repeated. Multiple spliced ​​arc plate assemblies 1 can be installed on the same fixing rod 3, so that the guard plate forms a cylindrical shape, which is convenient for fixing inside the kiln.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A long-life cement dry process rotary kiln guard plate, comprising a plurality of arc plate assemblies (1), characterized in that: A plurality of arc plate assemblies (1) are spliced ​​together, a hoop assembly (2) is provided between the plurality of arc plate assemblies (1), and four fixing rods (3) are plugged into the outer wall of one side of the hoop assembly (2), the hoop assembly (2) comprises four hoop members (11), the four hoop members (11) are spliced ​​together, the hoop member (11) comprises a hoop (12), one end of the hoop (12) is provided with a plug-in slot (13), and both sides of the inner wall of the plug-in slot (13) are provided with plug-in holes (14), the other end of the hoop (12) is integrally formed with an insert block (15), and one end of the insert block (15) is plugged into the inside of the plug-in slot (13), the outer wall of one side of the insert block (15) is provided with an insert hole (16), and the fixing rod (3) is plugged into the inside of the insert hole (14) and the insert hole (16).

2. The long-life cement dry process rotary kiln guard plate according to claim 1, characterized in that: The arc plate assembly (1) comprises an arc plate (4), a plurality of ribs (9) are welded on the top outer wall of the arc plate (4), and a clamping end (5) is integrally formed at one end of the arc plate (4).

3. The long-life cement dry process rotary kiln guard plate according to claim 2, characterized in that: A through hole (10) is provided on the outer wall of one side of the rib plate (9), and the hoop (12) is inserted into the through hole (10).

4. The long-life cement dry process rotary kiln guard plate according to claim 2, characterized in that: The other end of the arc plate (4) is integrally formed with a second clamping end (7), and the second clamping end (7) and the first clamping end (5) are in contact with each other.

5. The long-life cement dry process rotary kiln guard plate according to claim 4, characterized in that: A clamping groove (8) is provided on the outer wall of one side of the clamping end second (7), and a clamping block (6) is integrally formed on the outer wall of one side of the clamping end first (5), and the clamping block (6) is clamped inside the clamping groove (8).

6. The long-life cement dry process rotary kiln guard plate according to claim 2, characterized in that: The arc plate (4) comprises a metal layer (17), a heat-insulating layer (19) is provided on the outer wall on the top side of the metal layer (17), and a heat-resistant layer (18) is provided on the outer wall on the bottom side of the metal layer (17).

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