Portable access door for rotary kiln cylinder

By designing a convenient access door on the wall of the rotary kiln, the coordination of the guide rod and the moving rod is used to achieve rapid opening and closing of the access door, solving the problems of inconvenient operation and long maintenance time of the existing access door, and improving the maintenance efficiency.

CN222951492UActive Publication Date: 2025-06-06JIANGSU HAIJIAN
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Patent Information

Application Number
CN202421706061.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-06-06
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

The maintenance doors of the existing rotary kiln cylinders are time-consuming and labor-intensive to open and close, and are inconvenient to operate. The maintenance workers with long lengths have a high working intensity and have a long maintenance time.

Method used

A convenient access door is designed. By welding the reinforcement plate on the wall of the rotary kiln barrel and providing an access door on the reinforcement plate, the maintenance door is separated from the opening of the reinforcement plate by adjusting parts, and the door panel is pushed to open it for easy access.

Benefits of technology

The rapid opening and closing of the maintenance door is achieved, reducing the working intensity and time of the maintenance workers, and improving the efficiency and convenience of maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222951492U_ABST
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Abstract

The utility model discloses a portable access door for a rotary kiln barrel, which relates to the field of rotary kilns and comprises a reinforcing plate welded on a rotary kiln body, two groups of positioning plates are fixedly connected to the outer wall of the rotary kiln body, a guide rod is fixedly connected between each group of positioning plates, and a guide rod is fixedly connected between each group of positioning plates. And a group of moving rods moving along the guide rods are arranged on the rod walls of the two guide rods. The reinforcing plate is arranged on the cylinder wall of the rotary kiln, the strength of the cylinder wall is prevented from being damaged at the door opening position, the opening is formed in the reinforcing plate and the cylinder wall, the access door is arranged in the opening, the guide rod is arranged on the cylinder wall, the movable rods are arranged on the guide rod, and the reinforcing rod is fixed between the movable rods. The reinforcing rod is fixedly connected with the maintenance door through the adjusting piece, then the maintenance door is separated from the opening of the reinforcing plate through the adjusting piece, then the maintenance door is separated from the opening by pushing the moving rod, the opening is opened, and workers can conduct maintenance conveniently.
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Description

Technical Field

[0001] The utility model relates to the field of rotary kilns, in particular to a convenient maintenance door for a rotary kiln cylinder. Background Art

[0002] At present, domestic rotary kilns usually have maintenance doors on the kiln hood. The kiln lining or refractory bricks can only be handled through the kiln hood. For a long cylinder, the maintenance workers have a high workload and the maintenance time is long. Some rotary kilns also have maintenance doors on the cylinder, but the opening and closing of the maintenance doors is time-consuming and laborious, inconvenient to operate, and even the location is unreasonable. Utility Model Content

[0003] The purpose of the utility model is to provide a convenient inspection door for a rotary kiln cylinder to solve the problem that for a long cylinder, the maintenance workers have a high workload and a long maintenance time. Some rotary kiln cylinders are also provided with inspection doors, but the opening and closing of the inspection doors is time-consuming and laborious, and the operation is inconvenient.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a convenient maintenance door for a rotary kiln cylinder, comprising a reinforcing plate welded on a rotary kiln body, two groups of positioning plates being fixedly connected to the outer wall of the rotary kiln body, a guide rod being fixedly connected between each group of the positioning plates, a group of moving rods moving along the guide rods being provided on the rod walls of the two guide rods, two reinforcing rods being fixedly connected between the two moving rods, adjusting parts being provided inside the two reinforcing rods, the two reinforcing rods being fixedly connected to a maintenance door via the adjusting parts, and the size of the maintenance door being adapted to the opening size of the reinforcing plate.

[0005] Preferably, one opposite side of the two moving rods is fixedly connected with a group of clamps, and each group of the clamps is wound around the guide rod.

[0006] Preferably, the adjusting member comprises an adjusting bolt, the bottom end of the adjusting bolt passes through the reinforcing rod and is threadedly connected to a bolt sleeve, and one end of the bolt sleeve away from the adjusting bolt is fixedly connected to the maintenance door.

[0007] Preferably, clamping parts for clamping the maintenance door are provided at the four corners of the reinforcing plate, and the clamping parts include a pressing plate, an adjusting port is opened in the center of the pressing plate, a fastening bolt is provided in the cavity of the adjusting port, and the bottom end of the fastening bolt is threadedly connected to the reinforcing plate.

[0008] Preferably, the outer wall of the maintenance door is provided with a group of handles for adjusting the maintenance door.

[0009] Preferably, a rubber pad is provided around the bottom edge of the maintenance door.

[0010] The technical effects and advantages of the utility model are as follows: the utility model provides a reinforcing plate on the cylinder wall of the rotary kiln to prevent damage to the strength of the cylinder wall at the door opening, opens an opening between the reinforcing plate and the cylinder wall, and provides an inspection door in the opening; a guide rod is provided on the cylinder wall, a moving rod is provided on the guide rod, and a reinforcing rod is fixed between the moving rods; the reinforcing rod is fixedly connected to the maintenance door through an adjusting member, and then the maintenance door is separated from the opening of the reinforcing plate by the adjusting member, and then the moving rod is pushed to separate the maintenance door from the opening, and then the opening is opened, which is convenient for staff to carry out maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0012] Figure 2 It is a front view structural schematic diagram of the reinforcement plate of the utility model.

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the left side portion of the reinforcement plate of the present invention.

[0014] In the figure: 1. rotary cellar body; 2. reinforcement plate; 3. maintenance door; 4. positioning plate; 5. guide rod; 6. moving rod; 7. clamp; 8. reinforcement rod; 9. adjustment piece; 91. adjustment bolt; 92. bolt sleeve; 10. clamping piece; 101. fastening bolt; 102. adjustment port; 11. handle; 12. rubber pad. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The utility model provides Figure 1-3 A convenient inspection door for a rotary kiln cylinder shown in the figure comprises a reinforcing plate 2 welded on a rotary kiln body 1, two groups of positioning plates 4 are fixedly connected to the outer wall of the rotary kiln body 1, a guide rod 5 is fixedly connected between each group of positioning plates 4, a group of moving rods 6 moving along the guide rods 5 are provided on the rod walls of the two guide rods 5, two reinforcing rods 8 are fixedly connected between the two moving rods 6, the inside of the two reinforcing rods 8 are provided with adjusting members 9, the two reinforcing rods 8 are fixedly connected with a maintenance door 3 through the adjusting members 9, and the size of the maintenance door 3 is adapted to the opening size of the reinforcing plate 2;

[0017] By providing a guide rod 5 and a moving rod 6 provided on the guide rod 5, the moving rod 6 can slide on the guide rod 5, and the reinforcing rod 8 between the two moving rods 6 and the reinforcing rod 8 are fixedly connected to the maintenance door 3 through the adjusting member 9, and then the maintenance door 3 is driven to move on the guide rod 5 by the moving rod 6, thereby realizing the opening and closing of the maintenance door 3.

[0018] like Figure 1 As shown, a group of clamps 7 are fixedly connected to the opposite sides of the two moving rods 6 , and each group of clamps 7 is wound around the guide rod 5 , so that the moving rod 6 is slidably connected to the guide rod 5 through the clamps 7 .

[0019] like Figure 2 As shown, the four corners of the reinforcing plate 2 are provided with pressing members 10 for pressing the maintenance door 3, the pressing member 10 comprises a pressing plate, an adjusting port 102 is opened in the center of the pressing plate, a fastening bolt 101 is arranged in the cavity of the adjusting port 102, the bottom end of the fastening bolt 101 is threadedly connected with the reinforcing plate 2, and a group of handles 11 for adjusting the maintenance door 3 are arranged on the outer wall of the maintenance door 3;

[0020] By arranging the pressing pieces 10 at the four corners of the maintenance door 3, the pressing pieces 10 can press the maintenance door 3, reduce the gap between the maintenance door 3 and the rotary cellar body 1, and prevent the dust inside the rotary cellar body 1 from being emitted due to the gap being too large.

[0021] like Figure 3 As shown, the adjusting member 9 includes an adjusting bolt 91, the bottom end of the adjusting bolt 91 passes through the reinforcing rod 8 and is threadedly connected with a bolt sleeve 92, and one end of the bolt sleeve 92 away from the adjusting bolt 91 is fixedly connected to the maintenance door 3. The adjusting member 9 includes an adjusting bolt 91, the bottom end of the adjusting bolt 91 passes through the reinforcing rod 8 and is threadedly connected with a bolt sleeve 92, and one end of the bolt sleeve 92 away from the adjusting bolt 91 is fixedly connected to the maintenance door 3, and a rubber pad 12 is provided around the bottom edge of the maintenance door 3;

[0022] The bolt sleeve 92 can be driven to move by rotating the adjusting bolt 91, and the maintenance door 3 can be driven to move by the movement of the bolt sleeve 92, so as to realize the separation and combination of the maintenance door 3 and the rotary cellar body 1, and the movement of the maintenance door 3 is convenient during separation, thereby realizing the opening of the maintenance door 3.

[0023] Working principle of the utility model: when in use, first turn the fastening bolt 101 counterclockwise to remove the fastening bolt 101 from the reinforcing plate 2, then remove the pressing plate, and then turn the adjusting bolt 91 counterclockwise to drive the bolt sleeve 92 to move, and drive the maintenance door 3 to separate from the opening of the rotary cellar body 1 through the movement of the bolt sleeve 92. At the same time, hold the handle 11 by hand. When the maintenance door 3 is completely separated from the opening of the rotary cellar body 1, pull the handle 11 to drive the maintenance door 3 to move along the guide rod 5. At this time, the opening is opened, waiting for maintenance personnel to inspect;

[0024] When the inspection is completed, the handle 11 is pulled upwards. When the maintenance door 3 moves to the opening of the rotary cellar body 1, the adjusting bolt 91 is turned clockwise to drive the bolt sleeve 92 to move, so that the maintenance door 3 moves to the opening of the rotary cellar body 1, and then the pressure plate is placed at the four corners of the maintenance door 3, so that the pressure plate presses the maintenance door 3 on one side, and then the pressure plate is tightened by the tightening bolt 101 to press the maintenance door 3, thereby strengthening the seal between the maintenance door 3 and the rotary cellar body 1.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A convenient inspection door for a rotary kiln cylinder, comprising a reinforcing plate (2) welded on a rotary kiln body (1), characterized in that: Two groups of positioning plates (4) are fixedly connected to the outer wall of the rotary kiln body (1), and guide rods (5) are fixedly connected between each group of positioning plates (4). The rod walls of the two guide rods (5) are provided with a group of moving rods (6) that move along the guide rods (5). Two reinforcing rods (8) are fixedly connected between the two moving rods (6). Adjusting members (9) are provided inside the two reinforcing rods (8). The two reinforcing rods (8) are fixedly connected to a maintenance door (3) via the adjusting members (9), and the size of the maintenance door (3) is adapted to the opening size of the reinforcing plate (2).

2. The portable inspection door for a rotary kiln cylinder according to claim 1, characterized in that: A group of clamps (7) are fixedly connected to the opposite sides of the two moving rods (6), and each group of clamps (7) is wound around the guide rod (5).

3. The portable inspection door for a rotary kiln cylinder according to claim 1, characterized in that: The adjusting member (9) comprises an adjusting bolt (91), the bottom end of the adjusting bolt (91) passes through the reinforcing rod (8) and is threadedly connected to a bolt sleeve (92), and one end of the bolt sleeve (92) away from the adjusting bolt (91) is fixedly connected to the maintenance door (3).

4. The portable inspection door for a rotary kiln cylinder according to claim 1, characterized in that: The four corners of the reinforcing plate (2) are provided with clamping parts (10) for clamping the maintenance door (3), and the clamping part (10) comprises a pressing plate, and an adjusting port (102) is provided at the center of the pressing plate, and a fastening bolt (101) is provided in the cavity of the adjusting port (102), and the bottom end of the fastening bolt (101) is threadedly connected to the reinforcing plate (2).

5. The portable inspection door for a rotary kiln cylinder according to claim 1, characterized in that: The outer wall of the maintenance door (3) is provided with a group of handles (11) for adjusting the maintenance door (3).

6. The portable inspection door for a rotary kiln cylinder according to claim 1, characterized in that: A rubber pad (12) is provided around the bottom edge of the maintenance door (3).