Kiln head guard plate

Abstract

The utility model relates to a kiln head guard board which comprises a guard board main body (1) and a mounting plate (2), the guard board main body (1) is vertically arranged, a first reinforcing plate (3) is arranged on the upper portion of the front side face of the guard board main body (1), a second reinforcing plate (4) is arranged on the lower portion of the front side face of the guard board main body (1), a clamping piece (5) is arranged on the upper portion of the rear side face of the guard board main body (1), and the clamping piece (5) comprises a first baffle (51) and a second baffle (52). The first baffle (51) and the second baffle (52) are parallel to each other and are spaced, a groove (53) for containing the wall of the cold air sleeve is formed between the first baffle (51) and the second baffle (52), and the mounting plate (2) is horizontally arranged at the bottom of the rear side face of the guard plate body (1), fixedly connected with the rear side face of the guard plate body (1) and used for being connected with a barrel of the rotary kiln. The protective plate body (1) can be prevented from deforming and cracking, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to the structure of a kiln head guard plate of a rotary kiln. Background Art

[0002] A rotary kiln refers to a rotating calcining kiln, commonly known as a rotary kiln. A rotary kiln can be divided into cement kilns, metallurgical chemical kilns, and lime kilns according to the materials it processes. A rotary kiln is mainly composed of a kiln head, a cylinder, a kiln tail, and a power device. A discharge port is provided on the kiln head. The cylinder is divided into a feeding section, a calcining section, and a cooling section. A cold air sleeve is provided on the outside of the cooling section, and a feed port is provided on the kiln tail. The power device drives the cylinder to rotate. During operation, the material enters the feeding section of the cylinder from the feed port, and gradually moves to the calcining section as the cylinder rotates. The material undergoes high-temperature heat treatment in the calcining section, and is calcined by the heat energy provided by the kiln head burner. The calcined material enters the cooling section, and is cooled and discharged from the discharge port by the cooling gas in the cold air sleeve.

[0003] Although the calcined material is cooled, its temperature is still relatively high, and the discharge port is arranged at the kiln head of the rotary kiln, which is close to the firing zone. In addition, the calcination of the kiln head burner makes the temperature around the kiln head relatively high. The kiln head is often damaged under high temperature. The existing method usually installs a kiln head guard plate at the kiln head to protect the kiln head.

[0004] The structural design of the existing kiln head guard plate is unreasonable, the weight is large, the strength is low, and the existing kiln head guard plate is not firmly fixed to the refractory material, which makes it difficult to effectively protect the refractory material, resulting in the refractory material being easy to fall off. After the refractory material on the guard plate is damaged or falls off, the kiln head guard plate is in direct contact with the high-temperature clinker. Under the friction of the high-temperature material, the kiln head guard plate is prematurely oxidized, worn, and even deformed and broken, resulting in a short service life, frequent maintenance, low equipment operation rate, and increased production costs.

[0005] The utility model aims to solve the problem that the existing kiln head guard plate is easy to be damaged, has a short service life and affects normal production. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a kiln head guard plate, including a guard plate body 1 and a mounting plate 2. The guard plate body 1 is arranged vertically, a first reinforcing plate 3 is arranged on the upper part of the front side of the guard plate body 1, a second reinforcing plate 4 is arranged on the lower part of the front side, and a clamping member 5 is arranged on the upper part of the rear side of the guard plate body 1. The clamping member 5 includes a first baffle 51 and a second baffle 52. The first baffle 51 and the second baffle 52 are parallel to each other, maintaining a spacing, and a groove 53 for accommodating the wall of the cold air sleeve 81 is formed in the middle. The mounting plate 2 is horizontally arranged at the bottom of the rear side of the guard plate body 1, and is fixedly connected to the rear side of the guard plate body 1, and is used to connect with the cylinder 8 of the rotary kiln.

[0007] When the utility model is used, according to the structure of the cylinder 8 of the rotary kiln, a suitable number of kiln head guard plates are selected, and then the mounting plates 2 of the kiln head guard plates are sequentially connected to the rotary kiln cylinder 8, and the clamping member 5 is clamped on the cylinder wall of the cold air sleeve 81, so that a plurality of kiln head guard plates surround a circle of the rotary kiln cylinder 8, and the refractory material is poured on the side of the kiln head guard plate away from the cylinder 8.

[0008] The utility model is installed on the cylinder 8 of the rotary kiln through the mounting plate 2, and a clamping member 5 is arranged on the guard plate body 1, and the clamping member 5 can be clamped with the cylinder wall of the cold air sleeve 81 to position the cold air sleeve 81, so as to prevent the cold air sleeve from being burned and deformed due to high temperature and affecting the operation of the host equipment. The first reinforcing plate 3 and the second reinforcing plate 4 are arranged on the guard plate body 1, so as to enhance the structural strength of the guard plate body 1, thereby enhancing the firmness of the installation, preventing the guard plate body 1 from deformation and cracking, and extending the service life of the kiln head guard plate. The utility model solves the problem that the existing kiln head guard plate is easy to be damaged, has a short service life, and affects normal production.

[0009] Preferably, a reinforcing rib 6 is provided on the front side of the guard plate body 1. The reinforcing rib 6 is strip-shaped and vertically arranged, and the upper and lower ends are respectively fixedly connected to the first reinforcing plate 3 and the second reinforcing plate 4. By providing the reinforcing rib 6 on the front side of the guard plate body 1, the structural strength of the guard plate body 1 can be enhanced, the guard plate body 1 can be prevented from deformation and cracking, and the service life of the kiln head guard plate can be extended.

[0010] Preferably, the mounting plate 2 is provided with a mounting threaded hole 21, and the mounting threaded hole 21 is in a stepped shape. The mounting threaded hole 21 is provided on the mounting plate 2, and the mounting plate 2 can be fixedly connected to the rotary kiln cylinder 8 by bolts, which is more secure than welding. The mounting threaded hole 21 is provided in a stepped shape, and the mounting nut can be installed in the mounting threaded hole 21 to prevent the burning of the bolt, keep the surface of the guard plate mounting plate 2 flat, and facilitate the pouring of refractory materials.

[0011] Preferably, the first reinforcing plate 3 extends to both sides along the top edge of the guard plate body 1, and the front end of the first reinforcing plate 3 is bent downward to form a barb 31. The barb 31 can be used to clamp and support the poured refractory material to prevent the refractory material from falling off, thereby extending the service life of the kiln head guard plate.

[0012] Preferably, the reinforcing rib 6 is provided with a first nail hole 61. The reinforcing rib 6 is provided with a first nail hole 61, and a nail 7 can be installed, through which the cast refractory material and the kiln head guard plate can be anchored together to prevent the refractory material from falling off and extend the service life of the kiln head guard plate.

[0013] Preferably, a second nail hole 41 is provided on the second reinforcing plate 4. The second nail hole 41 is provided on the second reinforcing plate 4, and a nail 7 can be installed, through which the cast refractory material can be anchored with the kiln head guard plate to prevent the refractory material from falling off and extend the service life of the kiln head guard plate.

[0014] Preferably, the second reinforcing plate 4 extends to both sides along the bottom edge of the guard plate body 1, and the included angle between the second reinforcing plate 4 and the guard plate body 1 is 135°.

[0015] Preferably, the guard plate body 1, the mounting plate 2, the first reinforcing plate 3, the second reinforcing and clamping member 5 are an integrally formed structure. The guard plate body 1, the mounting plate 2, the first reinforcing plate 3, the second reinforcing and clamping member 5 are an integrally formed structure, which can improve the structural strength and reduce the weight.

[0016] Preferably, the area on the top surface of the mounting plate 2 located at the periphery of the mounting threaded hole 21 protrudes upward to form a fixing platform 22. The area on the top surface of the mounting plate 2 located at the periphery of the mounting threaded hole 21 protrudes to form a fixing platform 22, which can make the mounting plate 2 and the drum 8 of the rotary kiln more firmly connected.

[0017] Preferably, the guard plate body 1 is in a fan-shaped ring shape. The guard plate body 1 is arranged in a fan-shaped ring shape, and a plurality of kiln head guard plates are connected to form a ring-shaped protective structure to protect the kiln head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 .Schematic diagram of the rear view of the kiln head guard plate;

[0019] Figure 2 . Figure 1 Schematic diagram of the AA section;

[0020] Figure 3 . Schematic diagram of the front structure of the kiln head guard plate;

[0021] Figure 4 . Schematic diagram of the local structure of the kiln head guard plate viewed from above;

[0022] Figure 5 .Schematic diagram of the kiln head guard plate installation status.

[0023] In the figure, 1. guard plate body, 2. mounting plate, 21. mounting threaded hole, 22. fixing platform, 3. first reinforcing plate, 31. barb, 4. second reinforcing plate, 41. second nail grabbing hole, 5. clamping member, 51. first baffle plate, 52. second baffle plate, 53. groove, 6. reinforcing rib, 61. first nail grabbing hole, 7. nail grabbing, 8. cylinder, 81. cold air sleeve, 82. refractory brick, 9. refractory material. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the kiln head guard plate includes a guard plate body 1 and a mounting plate 2. The guard plate body 1 is fan-shaped, vertically arranged, and extends in the left and right directions. A first reinforcing plate 3, a second reinforcing plate 4, and reinforcing ribs 6 are arranged on the front side surface of the guard plate body 1, and a clamping member 5 is arranged on the upper part of the rear side surface of the guard plate body 1.

[0026] The guard plate body 1 is arranged in a fan-shaped shape, and a plurality of kiln head guard plates are connected to form a ring-shaped guard structure surrounding the kiln head to protect the kiln head.

[0027] The first reinforcing plate 3 is arranged on the upper part of the front side of the guard plate body 1, and the first reinforcing plate 3 extends to the left and right sides along the upper edge of the front side of the guard plate body 1, and the front end of the first reinforcing plate 3 is bent downward to form a barb 31. The barb 31 can be used to clamp and support the poured refractory material to prevent the refractory material from falling off, thereby extending the service life of the kiln head guard plate.

[0028] The second reinforcing plate 4 is arranged at the lower part of the front side of the guard plate body 1, and the second reinforcing plate 4 extends to the left and right sides along the lower edge of the front side of the guard plate body 1. The second reinforcing plate 4 is provided with three second grabbing nail holes 41, and the grabbing nails 7 can be arranged in the second grabbing nail holes 41. The grabbing nails 7 can anchor the poured refractory material to the kiln head guard plate, prevent the refractory material from falling off, and extend the service life of the kiln head guard plate.

[0029] The included angle between the second reinforcing plate 4 and the guard plate body 1 is 135°. The included angle between the second reinforcing plate 4 and the guard plate body 1 is 135°, which can enable the second reinforcing plate 4 to better support and fix the poured refractory material to prevent the refractory material from falling off.

[0030] The reinforcing rib 6 is strip-shaped and vertically arranged, with upper and lower ends respectively fixedly connected to the first reinforcing plate 3 and the second reinforcing plate 4 . The reinforcing rib 6 is provided with two first grasping nail holes 61 , in which grasping nails 7 can be arranged.

[0031] The reinforcing ribs 6 can enhance the structural strength of the guard plate body 1, prevent the guard plate body 1 from deformation and cracking, and extend the service life of the kiln head guard plate. The first grabbing nail hole 61 is provided with a grabbing nail 7, which can anchor the cast refractory material to the kiln head guard plate, prevent the refractory material from falling off, and extend the service life of the kiln head guard plate.

[0032] The clamping member 5 includes a first baffle 51 and a second baffle 52, which are parallel to each other and keep a distance, and form a groove 53 in the middle to accommodate the wall of the cold air sleeve 81. The clamping member 5 is used to fix the cold air sleeve 81 in the radial direction, fix and position the cold air sleeve 81, prevent the cold air sleeve 81 from deforming due to high temperature and affecting the operation of the rotary kiln, and improve the equipment operation rate.

[0033] The mounting plate 2 is horizontally arranged at the bottom of the rear side of the guard plate body 1 and is fixedly connected to the rear side of the guard plate body 1 for being fixedly connected to the inner wall of the cylinder 8 of the rotary kiln.

[0034] The mounting plate 2 is provided with five mounting threaded holes 21 (refer to Figure 4 ), the mounting threaded hole 21 is stepped. The mounting threaded hole 21 is set on the mounting plate 2, and the mounting plate 2 can be fixedly connected to the rotary kiln cylinder 8 by bolts, which is more secure than welding. The mounting threaded hole 21 is set in a stepped shape, and the mounting nut can be installed in the mounting threaded hole 21 to prevent the burning of the bolt, keep the surface of the guard plate mounting plate 2 flat, and facilitate the pouring of refractory materials.

[0035] The top surface of the mounting plate 2 is formed with a fixing platform 22 protruding upward from the area located at the periphery of the mounting threaded hole 21 (see Figure 4 The area on the top surface of the mounting plate 2 located at the periphery of the mounting threaded hole 21 is raised to form a fixing platform, so that the mounting plate 2 and the rotary kiln cylinder 8 can be connected more firmly.

[0036] The guard plate body 1, the mounting plate 2, the first reinforcing plate 3, the second reinforcing and the clamping member 5 are an integrally formed structure. The guard plate body 1, the mounting plate 2, the first reinforcing plate 3, the second reinforcing and the clamping member 5 are an integrally formed structure, which can improve the structural strength and reduce the weight.

[0037] like Figure 5 As shown, when the utility model is used, according to the structure of the cylinder 8 of the rotary kiln, a suitable number of kiln head guard plates are selected, and then the mounting plates 2 of each kiln head guard plate are sequentially attached to the inner wall of the cylinder 8 of the rotary kiln and fixed by bolts, so that the clamping member 5 is clamped on the cylinder wall of the cold air sleeve 81, and each kiln head guard plate is abutted against each other, so that a plurality of kiln head guard plates surround a circle of the rotary kiln cylinder 8, and then refractory material 9 is poured into the area in front of the refractory bricks 82 located inside the rotary kiln cylinder, so that the refractory material 9 completely wraps the front side of the guard plate body 1 of the kiln head guard plate and the bottom of the mounting plate 2 (that is, the side of the kiln head guard plate facing the high-temperature material).

[0038] The utility model is installed on the cylinder 8 of the rotary kiln through the mounting plate 2, and a clamping member 5 is arranged on the guard plate body 1, which can be clamped with the cylinder wall of the cold air sleeve 81 through the clamping member 5 to position and fix the cold air sleeve 81, so as to prevent the cold air sleeve from being burned and deformed due to high temperature and affecting the operation of the host equipment. The first reinforcing plate 3, reinforcing ribs 6 and the second reinforcing plate 4 are arranged on the guard plate body 1, which can enhance the structural strength of the guard plate body 1, enhance the firmness of the installation, prevent the guard plate body 1 from deformation and cracking, reduce the weight, reduce the weight load of the kiln head guard plate on the kiln head, prevent the deformation of the kiln mouth ring under high temperature, and extend the service life of the kiln head guard plate.

[0039] The front end of the first reinforcing plate 3 is bent downward to form a barb 31, which can clamp, support and fix the cast refractory material to prevent the refractory material from falling off. A second grabbing nail hole 41 is provided on the second reinforcing plate 4, and a first grabbing nail hole 61 is provided on the reinforcing rib 6. Grabbing nails 7 can be provided in the first grabbing nail hole 61 and the second grabbing nail hole 41. The grabbing nails 7 can anchor the cast refractory material to the kiln head guard plate to prevent the refractory material from falling off and extend the service life of the kiln head guard plate.

[0040] The angle between the second reinforcing plate 4 and the guard plate body 1 is set to 135°, so that the second reinforcing plate 4 can better fix the cast refractory material located on the front side of the guard plate body 1 and the bottom of the mounting plate 2 to prevent the refractory material from falling off, completely put an end to the direct contact of the guard plate body 1 with high-temperature materials, and effectively prevent the cylinder 8 and the guard plate from burning, deforming, breaking, and erosion, abrasion and oxidation of silicate materials under high temperature and high load conditions, thereby improving the service life.

[0041] It should be noted that the above embodiments illustrate the present invention rather than limit the present invention.

Claims

1. Kiln head guard plate, characterized in that: The invention comprises a guard plate body (1) and a mounting plate (2). The guard plate body (1) is arranged vertically, a first reinforcing plate (3) is arranged on the upper part of the front side of the guard plate body (1), a second reinforcing plate (4) is arranged on the lower part of the front side, and a clamping member (5) is arranged on the upper part of the rear side of the guard plate body (1); The clamping member (5) comprises a first baffle (51) and a second baffle (52); The first baffle plate (51) and the second baffle plate (52) are parallel to each other and maintain a distance therebetween, with a groove (53) formed in between for accommodating the wall of the cold air sleeve; The mounting plate (2) is horizontally arranged at the bottom of the rear side of the guard plate body (1), is fixedly connected to the rear side of the guard plate body (1), and is used to be connected to the cylinder of the rotary kiln.

2. The kiln head guard plate according to claim 1, characterized in that: A reinforcing rib (6) is provided on the front side of the guard plate body (1). The reinforcing rib (6) is strip-shaped and arranged vertically, with upper and lower ends respectively fixedly connected to the first reinforcing plate (3) and the second reinforcing plate (4).

3. The kiln head guard plate according to claim 2, characterized in that: The mounting plate (2) is provided with a mounting threaded hole (21). The mounting threaded hole (21) is in a stepped shape.

4. The kiln head guard plate according to claim 3, characterized in that: The first reinforcing plate (3) extends along the top edge of the guard plate body (1) to both sides. The front end of the first reinforcing plate (3) is bent downward to form a barb (31).

5. The kiln head guard plate according to claim 4, characterized in that: The reinforcing rib (6) is provided with a first nail grabbing hole (61).

6. The kiln head guard plate according to claim 5, characterized in that: The second reinforcement plate (4) is provided with a second nail grabbing hole (41).

7. The kiln head guard plate according to claim 6, characterized in that: The second reinforcing plate (4) extends along the bottom edge of the guard plate body (1) towards both sides, and the included angle between the second reinforcing plate (4) and the guard plate body (1) is 135°.

8. The kiln head guard plate according to claim 7, characterized in that: The guard plate body (1), the mounting plate (2), the first reinforcement plate (3), and the second reinforcement and clamping member (5) are an integrally formed structure.

9. The kiln head guard plate according to claim 8, characterized in that: An area on the top surface of the mounting plate (2) located at the periphery of the mounting threaded hole (21) protrudes upward to form a fixing platform (22).

10. The kiln head guard plate according to any one of claims 1 to 9, characterized in that: The guard plate body (1) is in the shape of a fan ring.

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