Reinforced barrel of rotary kiln

Abstract

The utility model relates to a rotary kiln reinforcing cylinder which comprises a cylinder body, a plurality of radial reinforcing assemblies surrounding the cylinder body are arranged at the positions, located at cracks, of the outer wall of the cylinder body, the radial reinforcing assemblies are arranged at equal intervals in the length direction of the cylinder body, and the cracks in the cylinder body are covered with the radial reinforcing assemblies. A transverse reinforcing assembly is arranged on the outer wall, between every two adjacent radial reinforcing assemblies, of the cylinder body for connection, and every two adjacent radial reinforcing assemblies are connected through the corresponding transverse reinforcing assembly. The reinforcing device has the advantages that the cylinder body can be reinforced in the circumferential direction and the axial direction, the overall operation is simple, and the reinforcing effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal processing equipment, and in particular relates to a reinforced cylinder of a rotary kiln. Background Art

[0002] The rotary kiln calcining process is an important process for producing coal-based kaolin fine casting sand. Due to the calcining process requirements, during the long-term operation of the equipment, the rotary kiln cylinder is prone to become thinner and crack due to alternating stress concentration after being corroded by the alkaline gas and alkaline materials in the kiln. Or it is prone to metal fatigue cracks under large load and hot and cold changes. It must be reinforced in time, otherwise the cracks will continue to grow and even the entire kiln will break.

[0003] At present, the rotary kiln shell is often reinforced by directly welding the cracks. However, due to the change of temperature after welding, as the equipment runs longer, there is a possibility that the reinforcement material will fall off again, causing the cracks to expand. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a rotary kiln reinforced cylinder, which can reinforce the cylinder body in the circumferential direction and the axial direction, has simple overall operation and good reinforcement effect.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A rotary kiln reinforced cylinder comprises a cylinder body, wherein a plurality of radial reinforcement components surrounding the cylinder body are arranged at cracks on the outer wall of the cylinder body, the plurality of radial reinforcement components are arranged at equal intervals along the length direction of the cylinder body, the plurality of radial reinforcement components cover the cracks on the cylinder body, a transverse reinforcement component is provided on the outer wall of the cylinder body between two adjacent radial reinforcement components, and the two adjacent radial reinforcement components are connected via the transverse reinforcement component.

[0007] Furthermore, the radial reinforcement assembly includes a plurality of upright arc-shaped steel plates, the inner sides of which are fixed on the outer wall of the cylinder body, and the plurality of arc-shaped steel plates are connected in sequence around the cylinder body from head to tail.

[0008] Furthermore, the transverse reinforcement assembly includes a plurality of upright straight steel plates, one side of the straight steel plate is fixed to the outer wall of the cylinder body, and both ends of the straight steel plate are respectively connected to the arc-shaped steel plates in two adjacent radial reinforcement assemblies.

[0009] Furthermore, the inner side edge of the arc-shaped steel plate is fully welded to the outer wall of the cylinder body, and two adjacent arc-shaped steel plates are connected by full welding.

[0010] Furthermore, one side edge of the straight steel plate is fully welded to the outer wall of the cylinder body, and the end of the straight steel plate is connected to the plate surface of the arc-shaped steel plate by full welding.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model reinforces the side wall of the cylinder body in the circumferential direction through multiple radial reinforcement components, and reinforces the side wall of the cylinder body in the axial direction through transverse reinforcement components. At the same time, multiple radial reinforcement components are connected and fixed through the transverse reinforcement components, thereby further improving stability, simple operation and good reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a side structural schematic diagram of the utility model.

[0015] In the figure: 1. Cylinder body; 2. Arc steel plate; 3. Straight steel plate. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0017] like Figure 1 , 2 As shown, a rotary kiln reinforced cylinder includes a cylinder body 1, and a plurality of radial reinforcement components surrounding the cylinder body 1 are provided at the cracks on the outer wall of the cylinder body 1, and the plurality of radial reinforcement components are arranged at equal intervals along the length direction of the cylinder body 1, so that the plurality of radial reinforcement components cover the cracks on the cylinder body 1, that is, the cylinder body 1 is reinforced in the circumferential direction by the plurality of radial reinforcement components, and the gap is entirely within the reinforcement range of the radial reinforcement components. Specifically, the radial reinforcement components include a plurality of upright arc-shaped steel plates 2, and the plurality of arc-shaped steel plates 2 are sequentially arranged around the cylinder, and the inner side edges of the arc-shaped steel plates 2 are fixedly connected to the outer wall of the cylinder body 1 by full welding, and at the same time, two adjacent arc-shaped steel plates 2 are fixedly connected together by full welding, so that the plurality of arc-shaped steel plates 2 are sequentially connected end to end around the cylinder body 1.

[0018] like Figure 1As shown, in order to further improve the reinforcement effect, a transverse reinforcement component is also provided on the outer wall of the cylinder body 1 between two adjacent radial reinforcement components, and then the cylinder body 1 is reinforced in the axial direction through the transverse reinforcement component. Specifically, the transverse reinforcement component includes a plurality of upright straight steel plates 3, one side of the straight steel plate 3 is fixedly connected to the outer wall of the cylinder body 1 by full welding, and at the same time, the two ends of the straight steel plate 3 are respectively fixedly connected to the plate surface of the arc-shaped steel plate 2 in the two adjacent radial reinforcement components by full welding, so that the cylinder body 1 is reinforced in the axial direction, and at the same time, the connection between the radial reinforcement components is increased through the transverse reinforcement component, so that the overall reinforcement structure is more stable and the reinforcement is more comprehensive.

[0019] In this embodiment, taking the rotary kiln cylinder of φ2.8m*50m used in actual production as an example, the arc steel plate 2 and the straight steel plate 3 are both carbon steel plates with δ20 and height of 200mm. According to the actual crack direction, three groups of radial reinforcement components are provided, and the spacing between two adjacent groups of radial reinforcement components is 400mm. The spacing between two adjacent straight steel plates 3 in the transverse reinforcement component is 400mm. The arc steel plate 2 and the straight steel plate 3 are fixed to the cylinder by full welding. The reinforcement is completed and no crack enlargement is found after two years of use. It can be seen that the reinforcement effect is good.

[0020] Finally, although the above description has shown and described the embodiments of the present invention, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln reinforced cylinder, comprising a cylinder body (1), characterized in that: The outer wall of the cylinder body (1) is provided with a plurality of radial reinforcement components surrounding the cylinder body (1) at the crack, the plurality of radial reinforcement components are arranged at equal intervals along the length direction of the cylinder body (1), the plurality of radial reinforcement components cover the crack on the cylinder body (1), a transverse reinforcement component is provided on the outer wall of the cylinder body (1) between two adjacent radial reinforcement components, and the two adjacent radial reinforcement components are connected via the transverse reinforcement component.

2. The reinforced cylinder of the rotary kiln according to claim 1, characterized in that: The radial reinforcement component comprises a plurality of upright arc-shaped steel plates (2), the inner sides of the plurality of arc-shaped steel plates (2) are fixed on the outer wall of the cylinder body (1), and the plurality of arc-shaped steel plates (2) are connected in sequence end to end around the cylinder body (1).

3. The reinforced cylinder of the rotary kiln according to claim 2, characterized in that: The transverse reinforcement assembly comprises a plurality of upright straight steel plates (3), one side of the straight steel plate (3) is fixed to the outer wall of the cylinder body (1), and both ends of the straight steel plate (3) are respectively connected to the arc-shaped steel plates (2) in two adjacent radial reinforcement assemblies.

4. The reinforced cylinder of the rotary kiln according to claim 2, characterized in that: The inner side edge of the arc-shaped steel plate (2) is fully welded to the outer wall of the cylinder body (1), and two adjacent arc-shaped steel plates (2) are connected by full welding.

5. The reinforced cylinder of the rotary kiln according to claim 3, characterized in that: One side edge of the straight steel plate (3) is fully welded to the outer wall of the cylinder body (1), and the end of the straight steel plate (3) is fully connected to the plate surface of the arc-shaped steel plate (2) by full welding.

Images