Composite hanging piece for inner cylinder of preheater of cement kiln

Abstract

The utility model provides a cement kiln preheater inner barrel composite hanging piece, belongs to the technical field of preheater inner barrel hanging pieces, and solves the technical problem that the reliability of a formed preheater inner barrel is general due to the fact that an existing preheater hanging piece is poor in combination stability. The cross section of the upper sheet body and the cross section of the lower sheet body have certain radians, the bottom of the upper sheet body is connected with a first connecting block, the top of the lower sheet body is connected with a second connecting block, the first connecting block is provided with a convex block, the second connecting block is provided with a groove, and the convex block is matched with the groove; the limiting blocks can be matched with the first connecting blocks and the second connecting blocks on the same side. The hanging piece can be widely applied to the technical field of hanging pieces of inner barrels of preheaters.

Description

Technical Field

[0001] The present application belongs to the technical field of preheater inner cylinder hanging plates, and more specifically, relates to a composite hanging plate for a cement kiln preheater inner cylinder. Background Art

[0002] The preheater's primary function is to fully utilize the waste heat from the rotary kiln and precalciner to heat the raw meal, preheating the raw meal and partially decomposing the carbonates. To maximize the efficiency of heat exchange between the gas and solids and achieve high quality, high yield, and low energy consumption for the entire calcination system, uniform gas-solid dispersion, rapid heat exchange, and efficient separation are essential.

[0003] The main function of the inner tube is to strengthen the swirl intensity, enhance the heat exchange rate, and improve the decomposition rate. Traditional preheater inner tube hanging plates have an S-shaped arc in the middle and straight strips on both sides. This hanging plate combination has poor stability, resulting in mediocre reliability of the preheater inner tube. Utility Model Content

[0004] In order to solve the technical problem that the reliability of the preheater inner tube is generally poor due to the poor stability of the existing preheater hanging plate combination, a composite hanging plate for the cement kiln preheater inner tube with high preheater hanging plate combination stability is provided.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is: a composite hanging plate for the inner cylinder of a cement kiln preheater, which is provided with an upper plate body, a lower plate body and two limit blocks. The cross-sections of the upper plate body and the lower plate body have a certain curvature. The bottom of the upper plate body is connected to a first connecting block, and the top of the lower plate body is connected to a second connecting block. The first connecting block is provided with a protrusion, and the second connecting block is provided with a groove. The protrusion cooperates with the groove, and the limit block can cooperate with the first connecting block and the second connecting block on the same side.

[0006] Preferably, the left and right sides of the first connecting block and the second connecting block are both protruding top blocks, and the two limiting blocks are both provided with limiting grooves corresponding to the shape of the top blocks, and the limiting grooves cooperate with the top blocks on the same side.

[0007] Preferably, both the upper plate and the lower plate are provided with connecting holes, and the connecting holes are connected to connecting plates via bolts.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] The utility model cooperates with the protrusion and the groove, and then sets two limit blocks to connect with the two sides of the first connecting block and the second connecting block, so as to achieve a stable connection between the upper and lower pieces, thereby ensuring the stability of the hanging piece units constituting the inner cylinder of the preheater, thereby ensuring the stability of the ultimately formed inner cylinder of the preheater. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0011] Figure 1 It is a structural diagram of the inner cylinder of the preheater;

[0012] Figure 2 Schematic diagram of the structure of the upper piece;

[0013] Figure 3 Schematic diagram of the structure of the lower sheet;

[0014] Figure 4 It is a schematic diagram of the main structure of the upper piece, the lower piece and the limit block;

[0015] Figure 5 It is a side view structural diagram of the upper piece, lower piece and limit block.

[0016] Explanation of symbols in the figure:

[0017] 1. Upper piece; 2. Lower piece; 3. Limit block; 4. First connecting block; 5. Second connecting block; 6. Groove; 7. Protrusion; 8. Top block; 9. Limit groove; 10. Connecting hole; 11. Bolt; 12. Connecting piece. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0019] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0020] like Figure 1-5As shown, the present application provides a composite hanging plate for the inner cylinder of a cement kiln preheater, which is provided with an upper sheet body 1, a lower sheet body 2 and two limit blocks 3. The cross-sections of the upper sheet body 1 and the lower sheet body 2 have a certain curvature. The bottom of the upper sheet body 1 is connected to a first connecting block 4, and the top of the lower sheet body 2 is connected to a second connecting block 5. The first connecting block 4 is provided with a protrusion 7, and the second connecting block 5 is provided with a groove 6. The protrusion 7 cooperates with the groove 6, and the limit block 3 can cooperate with the first connecting block 4 and the second connecting block 5 on the same side.

[0021] In the technical solution adopted in this embodiment, the upper sheet 1 and the lower sheet 2 are connected to form a hanging piece of the inner cylinder of the preheater. Specifically, the protrusion 7 on the first connecting block 4 cooperates with the groove 6 on the second connecting block 5 to achieve a preliminary connection between the upper sheet 1 and the lower sheet 2. Subsequently, the two limit blocks 3 cooperate with the first connecting block 4 and the second connecting block 5 on the left and right sides respectively to achieve a stable connection between the upper sheet 1 and the lower sheet 2. It should be noted that the cross-sections of the upper sheet 1 and the lower sheet 2 have a certain curvature, so that multiple preheater inner cylinder hanging pieces can be connected and cooperated together to form the inner cylinder of the preheater.

[0022] Furthermore, in this embodiment, the left and right sides of the first connecting block 4 and the second connecting block 5 are both protruding top blocks 8, and the two limiting blocks 3 are both provided with limiting grooves 9 corresponding to the shape of the top blocks 8, and the limiting grooves 9 cooperate with the top blocks 8 on the same side.

[0023] In the technical solution adopted in this embodiment, the limit block 3 cooperates with the first connecting block 4 and the second connecting block 5 on the same side to achieve a stable connection between the upper sheet 1 and the lower sheet 2, specifically by cooperating the limit groove 9 on the limit block 3 with the top block 8 on the same side of the first connecting block 4 and the second connecting block 5.

[0024] Furthermore, in this embodiment, both the upper plate body 1 and the lower plate body 2 are provided with connecting holes 10 , and the connecting holes 10 are connected to connecting plates 12 via bolts 11 .

[0025] In the technical solution adopted in this embodiment, the preheater inner tube hanging plates composed of multiple upper plates 1 and lower plates 2 are connected to each other on the left and right sides to form the inner tube of the preheater. Specifically, the multiple preheater inner tube hanging plates are connected to each other through the cooperation of the connecting plates 12, bolts 11 and connecting holes 10. It should be noted that the multiple connecting plates 12 are divided into two layers and staggered. This arrangement is to make the connection between the left and right preheater inner tube hanging plates more stable, thereby further improving the stability of the preheater inner tube.

[0026] The working principle of the present invention is as follows: first, the protrusion 7 on the first connecting block 4 is matched with the groove 6 on the second connecting block 5, and the upper piece 1 and the lower piece 2 are preliminarily connected to form a preheater inner cylinder hanging piece; then, the two limit blocks 3 are respectively connected to the two sides of the first connecting block 4 and the second connecting block 5 to achieve a stable connection between the upper piece 1 and the lower piece 2; finally, multiple preheater inner cylinder hanging pieces are connected left and right through the connecting piece 12 to form a preheater inner cylinder.

[0027] The utility model cooperates with the protrusion 7 and the groove 6, and then sets two limit blocks 3 to connect with the two sides of the first connecting block 4 and the second connecting block 5, so as to achieve a stable connection between the upper sheet body 1 and the lower sheet body 2, thereby ensuring the stability of the hanging sheet unit constituting the inner cylinder of the preheater, thereby ensuring the stability of the final preheater inner cylinder.

[0028] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0029] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A composite hanging sheet for the inner cylinder of a cement kiln preheater, characterized in that: It is provided with an upper piece, a lower piece and two limit blocks. The cross-sections of the upper piece and the lower piece have a certain curvature. The bottom of the upper piece is connected to a first connecting block, and the top of the lower piece is connected to a second connecting block. The first connecting block is provided with a protrusion, and the second connecting block is provided with a groove. The protrusion cooperates with the groove, and the limit block can cooperate with the first connecting block and the second connecting block on the same side.

2. The composite hanging sheet for the inner cylinder of a cement kiln preheater according to claim 1, characterized in that: The left and right sides of the first connecting block and the second connecting block are both protruding top blocks, and the two limiting blocks are both provided with limiting grooves corresponding to the shapes of the top blocks, and the limiting grooves cooperate with the top blocks on the same side.

3. The composite hanging sheet for the inner cylinder of a cement kiln preheater according to claim 1, characterized in that: The upper plate body and the lower plate body are both provided with connecting holes, and the connecting holes are connected with connecting plates through bolts.

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