Kiln door of rotary cement kiln

Abstract

The rotary cement kiln door comprises a first door body and a second door body which are rotationally installed at a door frame through a door shaft assembly, and the opposite sides of the first door body and the second door body are each provided with an arc-shaped notch so that a combustor through hole can be formed after installation; the upper side and the lower side of the first door body and the upper side and the lower side of the second door body are connected with the door frame through buckle assemblies, handles are arranged at the positions, located above the arc-shaped notches, of the first door body and the second door body, and a high-temperature-resistant camera is installed on the first door body. When the door is used, the first door body and the second door body can be easily opened or closed by one person through cooperation of the handle and the door shaft assembly, time and labor are saved in the operation process, the door frame is not prone to deformation in the operation process, and therefore air leakage and sand material leakage can be effectively avoided, energy consumption is reduced, and field environmental sanitation is ensured; the first door body and the second door body are fixedly connected with the door frame by operating the buckle assembly, and the condition in the rotary kiln can be observed through the high-temperature-resistant camera.

Description

Technical Field

[0001] This utility model relates to the field of cement processing and production technology, and in particular to a cement rotary kiln door. Background Technology

[0002] The cement rotary kiln is a major and crucial piece of equipment in the production of cement building materials. Inside the kiln are high-temperature cement clinker and high-temperature air. During actual operation, the interior of the cement rotary kiln is under negative pressure, preventing outside cold air from entering. Therefore, a well-sealed environment is essential. The kiln door, as a key component of the cement rotary kiln, must possess excellent sealing performance to prevent the leakage of high-temperature gases and dust, while also preventing the entry of outside air and ensuring stable temperature and pressure inside the kiln. Simultaneously, the design of the kiln door must consider ease of inspection and maintenance. When inspection or repair of the kiln's interior is required, the door should be able to be opened to allow personnel to enter.

[0003] However, the existing cement rotary kiln door is designed to be suspended. During maintenance, it takes two 3-ton hand-operated hoists and four people 5 hours to open the kiln door. Closing it also takes about 5 hours. The opening and closing process is complicated and troublesome. Moreover, during production, due to severe deformation of the kiln door and door frame, there is serious air leakage and sand leakage, resulting in increased energy consumption and poor on-site environmental hygiene. Utility Model Content

[0004] The purpose of this application is to provide a cement rotary kiln door to solve the problems of complex and troublesome operation of existing cement rotary kiln doors; and the serious air leakage and sand leakage caused by severe deformation of the kiln door and door frame during production, which easily leads to increased energy consumption and poor on-site environmental hygiene.

[0005] To solve the above-mentioned technical problems, this application provides a cement rotary kiln door, comprising:

[0006] The first and second doors are rotatably installed on the door frame via a door hinge assembly. Both the first and second doors have arc-shaped notches on opposite sides to form burner through holes after installation. The upper and lower sides of the first and second doors are connected to the door frame via a snap-fit ​​assembly. Both the first and second doors have handles located above the arc-shaped notches. A high-temperature resistant camera is installed on the first door.

[0007] In a preferred embodiment, a cement rotary kiln door includes a door shaft assembly comprising a plurality of first connecting plates fixed to the door frame and a plurality of second connecting plates fixed to the first door body and the second door body. Each of the first connecting plates and the second connecting plates is provided with a mounting hole, and a rotating shaft passes through the mounting hole. Both ends of the rotating shaft are screwed with limit nuts.

[0008] In a preferred embodiment, a cement rotary kiln door includes a buckle assembly comprising two snap-fit ​​plates fixed to the door frame and snap-fit ​​rods fixed to the sides of the first and second door bodies. The snap-fit ​​plates are provided with snap-fit ​​holes, and the snap-fit ​​rods are located between the two snap-fit ​​plates and are fixed by pins inserted into the snap-fit ​​holes.

[0009] The solution requires detailed explanation of a cement rotary kiln door, wherein one end of the pin rod is connected to the upper part of the locking rod via a chain.

[0010] In a preferred embodiment, a cement rotary kiln door is provided with a flexible high-temperature resistant sealing gasket at the contact position between the first door body and the second door body and the door frame.

[0011] In a preferred embodiment, a cement rotary kiln door is provided with a flexible high-temperature resistant sealing gasket on the opposite side of the first door body and the second door body.

[0012] As a preferred embodiment, a cement rotary kiln door is provided with a transparent observation window on the first door body or the second door body.

[0013] The solution requires further explanation as to the fact that, for a cement rotary kiln door, the high-temperature resistant camera is an HC series endoscopic camera.

[0014] Compared with existing technologies, the cement rotary kiln door provided by this utility model includes a first door body and a second door body rotatably installed on the door frame via a door hinge assembly. Both the first and second door bodies have arc-shaped notches on opposite sides to form burner through holes after installation. The upper and lower sides of the first and second door bodies are connected to the door frame via a snap-fit ​​assembly. Handles are provided above the arc-shaped notches on both the first and second door bodies. A high-temperature resistant camera is installed on the first door body. In use, the first and second door bodies can be easily opened or closed by one person using the handles and door hinge assembly. The operation is time-saving and labor-saving, and the door frame is not easily deformed during operation, thus effectively preventing air leakage and sand leakage, reducing energy consumption, and ensuring a clean working environment. After closing the first and second door bodies, the snap-fit ​​assembly can be used to fix them to the door frame. The high-temperature resistant camera allows observation of the conditions inside the rotary kiln. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] The core of this application is to provide a cement rotary kiln door that solves the problems of complex and troublesome operation of existing cement rotary kiln doors; and the serious air leakage and sand leakage caused by severe deformation of the kiln door and door frame during production, which easily leads to increased energy consumption and poor on-site environmental hygiene.

[0017] Figure 1 This is a schematic diagram of a cement rotary kiln door structure provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of a door hinge assembly structure provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of a snap-fit ​​assembly structure provided in an embodiment of this application;

[0020] In the diagram: 1. Door frame; 2. First door body; 3. Second door body; 4. Arc-shaped notch; 5. Burner through hole; 6. Handle; 7. High-temperature resistant camera; 8. First connecting plate; 9. Second connecting plate; 10. Shaft; 11. Limiting nut; 12. Clip plate; 13. Clip rod; 14. Pin rod; 140. Anti-detachment blocking component; 15. Chain; 16. Flexible high-temperature resistant sealing gasket; 17. Transparent observation window; 18. Door hinge assembly; 19. Buckle assembly. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0022] The core of this application is to provide a cement rotary kiln door that solves the problems of complex and troublesome operation of existing cement rotary kiln doors; and the serious air leakage and sand leakage caused by severe deformation of the kiln door and door frame during production, which easily leads to increased energy consumption and poor on-site environmental hygiene.

[0023] Figure 1 This is a schematic diagram of a cement rotary kiln door structure provided in an embodiment of this application. Figure 2 This is a schematic diagram of a door hinge assembly structure provided in an embodiment of this application. Figure 3 This is a schematic diagram of a snap-fit ​​assembly 19 provided in an embodiment of this application. See also... Figures 1 to 3 As shown.

[0024] Example 1

[0025] A cement rotary kiln door includes a first door body 2 and a second door body 3 rotatably mounted on a door frame 1 via a door hinge assembly 18. In use, the first door body 2 and the second door body 3 can rotate around the door hinge assembly 18. Each of the first door body 2 and the second door body 3 has an arc-shaped notch 4 on its opposite side to form a burner through hole 5 after installation. One end of the burner can be installed inside the rotary kiln through the burner through hole 5. The upper and lower sides of the first door body 2 and the second door body 3 are connected to the door frame 1 via a snap-fit ​​assembly 19. Each of the first door body 2 and the second door body 3 has a handle 6 above the arc-shaped notch 4. With the help of the handle 6 and the door hinge assembly 18, only one person is needed to easily open or close the first door body 2 and the second door body 3. When opening, the snap-fit ​​assembly 19 needs to be in the unlocked state. When closing, the snap-fit ​​assembly 19 can be operated to lock, fixing the first door body 2 and the second door body 3 to the door frame 1. A high-temperature resistant camera 7 is installed on the first door 2, allowing remote observation of the rotary kiln's interior via the camera from the control room. Preferably, the high-temperature resistant camera 7 can be an HC series endoscopic camera.

[0026] Example 2

[0027] Based on Embodiment 1, a cement rotary kiln door, in order to achieve the rotational connection and connection stability between the first door body 2 and the second door body 3 and the door frame 1, preferably, the door shaft assembly 18 includes a plurality of first connecting plates 8 fixed to the door frame 1 and a plurality of second connecting plates 9 fixed to the first door body 2 and the second door body 3. The first connecting plates 8 and the second connecting plates 9 are provided with mounting holes, and a rotating shaft 10 passes through the mounting holes. Both ends of the rotating shaft 10 are screwed with limit nuts 11. In use, the first door body 2 and the second door body 3 can rotate around the rotating shaft 10. This connection method can also ensure the tightness of the connection between the first door body 2 and the second door body 3 and the door frame 1, and improve the sealing effect.

[0028] Based on Embodiment 1, a cement rotary kiln door, in order to achieve a snap-fit ​​connection, preferably includes two snap-fit ​​plates 12 fixed to the door frame 1 and a snap-fit ​​rod 13 fixed to the side of the first door body 2 and the second door body 3. The snap-fit ​​plates 12 are provided with snap-fit ​​holes. After the first door body 2 and the second door body 3 are closed, the snap-fit ​​rod 13 is located between the two snap-fit ​​plates 12. At this time, inserting a pin rod 14 into the snap-fit ​​hole can limit and fix the snap-fit ​​rod 13 between the two snap-fit ​​plates 12, thereby limiting and fixing the first door body 2 and the second door body 3 at the door frame 1.

[0029] In this embodiment, for the convenience of inserting and connecting the pin rod 14, one end of the pin rod 14 is preferably connected to the upper part of the locking rod 13 via a chain 15, which can prevent the pin rod 14 from being lost from the locking hole. In actual use, an anti-detachment blocking component 140 is also provided at the other end of the pin rod 14.

[0030] Based on Example 1, in order to improve the sealing performance of a cement rotary kiln door, a flexible high-temperature resistant sealing gasket 16 is preferably provided at the contact position between the first door body 2 and the second door body 3 and the door frame 1.

[0031] Based on Example 1, a cement rotary kiln door, in order to further improve the sealing performance of the kiln door, preferably, is provided with a flexible high-temperature resistant sealing gasket 16 on the opposite side of the first door body 2 and the second door body 3.

[0032] Based on Example 1, a cement rotary kiln door is preferably provided with a transparent observation window 17 on the first door body 2 or the second door body 3 to facilitate on-site observation of the conditions inside the cement rotary kiln.

[0033] This embodiment provides a cement rotary kiln door, including a first door body 2 and a second door body 3 rotatably mounted on a door frame 1 via a door hinge assembly 18. Both the first door body 2 and the second door body 3 have arc-shaped notches 4 on opposite sides to form burner through holes 5 after installation. The upper and lower sides of the first door body 2 and the second door body 3 are connected to the door frame 1 via a snap-fit ​​assembly 19. Each of the first door body 2 and the second door body 3 has a handle 6 located above the arc-shaped notch 4. A high-temperature resistant camera 7 is mounted on the first door body 2. In use, the first door body 2 and the second door body 3 can be easily opened or closed by one person using the handle 6 and the door hinge assembly 18. The operation is time-saving and labor-saving, and the door frame 1 is not easily deformed during operation, thus effectively preventing air leakage and sand leakage, reducing energy consumption, and ensuring a clean working environment. After closing the first door body 2 and the second door body 3, the snap-fit ​​assembly 19 can be used to fix the first door body 2 and the second door body 3 to the door frame 1. The high-temperature resistant camera 7 allows observation of the conditions inside the rotary kiln.

[0034] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0035] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A cement rotary kiln door, characterized by, The utility model relates to a kind of burner door frame and burner door, including: First door body (2) and second door body (3) are rotatably installed at door frame (1) by door shaft assembly (18), the first door body (2) and the second door body (3) are provided with arc-shaped cutout (4) to form burner through hole (5) after installation on one side, the upper and lower side of the first door body (2) and the second door body (3) is connected by buckle assembly (19) between the door frame (1), the first door body (2) and the second door body (3) are provided with handle (6) at the top of arc-shaped cutout (4), high-temperature-resistant camera (7) is installed on the first door body (2).

2. The cement rotary kiln door as claimed in claim 1, wherein, The door shaft assembly (18) includes a plurality of first connecting plates (8) fixed to the door frame (1) and a plurality of second connecting plates (9) fixed to the first door body (2) and the second door body (3), the first connecting plate (8) and the second connecting plate (9) are provided with mounting holes, the rotating shaft (10) is penetrated in the mounting hole, the both ends of the rotating shaft (10) are screwed with limit nut (11).

3. The cement rotary kiln door of claim 1, wherein, The buckle assembly (19) includes two clamping plates (12) fixed to the door frame (1) and a clamping rod (13) fixed to the side of the first door body (2) and the second door body (3), the clamping plate (12) is provided with clamping hole, the clamping rod (13) is located between two clamping plates (12) and is fixed by inserting the bolt rod (14) in the clamping hole.

4. The cement rotary kiln door of claim 3, wherein, One end of the bolt rod (14) is connected with the upper part of the clamping rod (13) by chain (15).

5. The cement rotary kiln door as claimed in claim 1, wherein, The contact position of the first door body (2) and the second door body (3) and the door frame (1) is also provided with flexible high-temperature-resistant sealing pad (16).

6. The cement rotary kiln door of claim 1, wherein, The opposite side of the first door body (2) and the second door body (3) is also provided with flexible high-temperature-resistant sealing pad (16).

7. The cement rotary kiln door of claim 1, wherein, The first door body (2) or the second door body (3) is also provided with transparent observation window (17).

8. The cement rotary kiln door according to any one of claims 1 to 7, characterized in that The high-temperature-resistant camera (7) is HC series endoscopic camera.

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