Inner cylinder of cement preheater

Abstract

The utility model relates to the field of inner barrels of preheaters, in particular to an inner barrel of a cement preheater. Comprising a container body, a plurality of first hanging plates and a plurality of second hanging plates are arranged on the container body, the first hanging plates are spliced to form a circular shape, the four side edges of each first hanging plate abut against the side edges of the four adjacent first hanging plates, the second hanging plates are located among the four adjacent first hanging plates, and the first hanging plates and the second hanging plates are connected through bolts. The four side edges of each second hanging plate abut against the side edges of the four adjacent second hanging plates, and the second hanging plates cover gaps among the four adjacent first hanging plates. The utility model has the technical effect of good sealing performance.

Description

Technical Field

[0001] The present application relates to the field of preheater inner cylinders, and in particular to a cement preheater inner cylinder. Background Art

[0002] Currently, cement preheaters are one of the key equipment in the cement production process and are usually located at the front end of the cement kiln. Their function is to improve the combustion efficiency of the cement kiln and reduce the demand for fuel by preheating the raw materials entering the kiln. Cement preheaters usually consist of components such as a preheater cylinder, a support system, a separator, a cyclone tube, and a flue gas pipe. The raw materials (usually powdered limestone and fly ash) rotate through the cyclone tube in the preheater and are heated by the hot air flow, thereby increasing their temperature. In this way, the raw materials entering the cement kiln have been preheated to a certain temperature, which is conducive to the formation of cement clinker in the kiln and the utilization of heat energy. Currently, the inner cylinder of cement preheaters mostly adopts a structure made of ceramic hanging plates connected one by one. However, the connection between the current ceramic hanging plates is not sealed well, which can easily cause damage to the cylinder and reduce the service life of the preheater. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide an inner cylinder of a cement preheater, which can solve the technical problem of poor sealing of the inner cylinder of the cylinder.

[0004] The embodiment of the present application provides a cement preheater inner cylinder adopting the following technical solution:

[0005] A cement preheater inner cylinder comprises a cylinder body, wherein a plurality of first hanging plates and a plurality of second hanging plates are provided on the cylinder body, wherein the plurality of first hanging plates are spliced ​​together to form a circular shape, wherein the four sides of the first hanging plates abut against the sides of four adjacent first hanging plates, wherein the second hanging plates are located between the four adjacent first hanging plates, wherein the four sides of the second hanging plates abut against the sides of four adjacent second hanging plates, and wherein the second hanging plates cover the gaps between the four adjacent first hanging plates.

[0006] Furthermore, steps are provided on four sides of the outer side surface of the first hanging plate, and the steps on four adjacent first hanging plates form an accommodating cavity, and the second hanging plate is embedded in the accommodating cavity.

[0007] Furthermore, a protrusion is provided on the surface of the second hanging plate facing the first hanging plate, and a notch is provided at each of the four corners of the first hanging plate, and the protrusion is inserted into the notch.

[0008] Furthermore, connecting plates are provided at the four corners of the first hanging plate, the connecting plates are located in the notches, and fixing bolts are connected between the connecting plates and the second hanging plate.

[0009] Furthermore, connecting plates are provided on the second hanging plates at both ends of the cylinder body. Fixing plates are provided on the connecting plates. The fixing plates are arranged in a U shape. The fixing plates are provided with mounting holes. Multiple connecting holes are provided on the connecting plates. The second hanging plates and the connecting holes are connected by connecting bolts.

[0010] Furthermore, the connecting holes are arranged in an oblong shape.

[0011] Furthermore, rib plates are connected between the fixing plates and the connecting plates.

[0012] Advantages of the present utility model:

[0013] The second hanging plates on the inner cylinder body provided by the present utility model cover the gaps between adjacent first hanging plates, thereby improving the sealing performance of the inner cylinder body. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structures of the first hanging plate and the second hanging plate in an embodiment of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structures of the first hanging plate and the second hanging plate from another perspective in an embodiment of the present utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the connecting seat in an embodiment of the present utility model.

[0019] The reference numerals are respectively: 1, cylinder body; 2, first hanging plate; 21, step; 22, notch; 23, connecting plate; 24, fixing bolt; 3, second hanging plate; 31, convex block; 4, connecting seat; 41, fixing plate; 411, mounting hole; 42, connecting hole; 43, rib plate; Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] The embodiment of the present application discloses a cement preheater inner cylinder, referring to Figure 1-4, including a cylinder body 1, which is arranged in a cylindrical shape. There are multiple first hanging plates 2 and multiple second hanging plates 3 arranged on the cylinder body 1. The first hanging plates 2 and the second hanging plates 3 can be made of ceramics. The second hanging plates 3 are arranged in a cross shape. The multiple first hanging plates 2 and the second hanging plates 3 are arranged in multiple rows along the axial length direction of the cylinder body 1. The multiple first hanging plates 2 in each row are spliced together to form a circular shape, and the multiple second hanging plates 3 in each row are spliced together to form a circular shape. The four side edges of the first hanging plate 2 are abutted against the side edges of the adjacent four first hanging plates 2, and the four side edges of the second hanging plate 3 are abutted against the side edges of the adjacent four second hanging plates 3. The multiple rows of first hanging plates 2 and second hanging plates 3 are superimposed to form the cylindrical cylinder body 1, and the second hanging plate 3 is located between the four adjacent first hanging plates 2. The inner surface of the first hanging plate 2 is fitted with the outer surface of the second hanging plate 3. The second hanging plate 3 covers the gap between the adjacent four first hanging plates 2, and the side edge of the second hanging plate 3 is located at the middle position of the side edge of the first hanging plate 2. The multiple second hanging plates 3 are spliced together to cover the gap between the multiple first hanging plates 2, and the sealing performance is better.

[0027] At the same time, steps 21 are arranged on the four side edges of the outer surface of the first hanging plate 2. The steps 21 on the adjacent four first hanging plates 2 form a receiving cavity, and the second hanging plate 嵌入式于 the receiving cavity, so that the connection stability between the first hanging plate 2 and the second hanging plate 3 is better. At the same time, a convex block 31 is integrally formed on the surface of the second hanging plate 3 facing the first hanging plate 2. Notches 22 are opened at the four corners of the first hanging plate 2. The convex block 31 is inserted into the notch 22. At the same time, the surface of the convex block 31 is flush with the inner surface of the first hanging plate 2. Connecting plates 23 are integrally formed at the four corners of the first hanging plate 2. The connecting plates 23 are located in the notch 22. A fixing bolt 24 is connected between the connecting plate 23 and the second hanging plate 3. Through the fixing bolt 24, the first hanging plate 2 and the second hanging plate 3 can be firmly connected together. And through the setting of the convex block 31, the distribution of the bolts can be made more dispersed, so that the bolts will not be too concentrated and the force is better. <(

[0028] In addition, connection seats 4 are arranged on the second hanging plates 3 at both ends of the cylinder body 1. The connection seats 4 are fitted with the outer surface of the second hanging plate 3. Connection holes 42 are opened at the four corners of the connection seats 4. The second hanging plate 3 is connected with the connection holes 42 through connection bolts. At the same time, the connection holes 42 are arranged in an oblong shape, so that it is convenient for the operator to adjust the position of the connecting plate 23. A fixing plate 41 is welded on the surface of the connection seat 4背离 the second hanging plate 3. The fixing plate 41 is arranged in a U shape. An installation hole 411 is opened at one end of the fixing plate 41远离 the connection seat 4. The installation hole 411 can facilitate the operator to fix the fixing plate 41 on the inner wall of the preheater by using bolts, so as to fix the cylinder body 1 in the preheater. At the same time, a rib plate 43 is welded between the fixing plate 41 and the connection seat 4, and the rib plate 43 can improve the connection strength between the fixing plate 41 and the connection seat 4.

[0029] The implementation principle of the inner cylinder of a cement preheater in an embodiment of the present application is as follows: first, multiple first hanging plates 2 are spliced ​​together in a row, and then the second hanging plates 3 are sequentially installed between two adjacent first hanging plates 2, and the first hanging plates 2 and the second hanging plates 3 are fixed together using fixing bolts 24, and then the first hanging plates 2 are sequentially spliced ​​between multiple second hanging plates 3. After repeated splicing, the cylinder body 1 can be formed, and the second hanging plates 3 cover the gaps between adjacent first hanging plates 2, thereby improving the sealing performance of the inner cylinder body 1.

[0030] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cement preheater inner cylinder, characterized by: It includes a cylinder body, on which there are multiple first hanging plates and multiple second hanging plates. The multiple first hanging plates are spliced into a circular shape. The four side edges of the first hanging plate are abutted against the side edges of four adjacent first hanging plates. The second hanging plate is located between four adjacent first hanging plates. The four side edges of the second hanging plate are abutted against the side edges of four adjacent second hanging plates. The second hanging plate covers the gap between four adjacent first hanging plates.

2. The cement preheater inner cylinder according to claim 1, characterized in that: Steps are provided on the four side edges of the outer surface of the first hanging plate. The steps on four adjacent first hanging plates form a receiving cavity, and the second hanging plate is fitted into the receiving cavity.

3. The cement preheater inner cylinder according to claim 1, characterized in that: Protrusions are provided on the surface of the second hanging plate facing the first hanging plate. Notches are provided at the four corners of the first hanging plate, and the protrusions are inserted into the notches.

4. The cement preheater inner cylinder according to claim 3, characterized in that: Connection plates are provided at the four corners of the first hanging plate. The connection plates are located within the notches, and fixing bolts are connected between the connection plates and the second hanging plate.

5. The cement preheater inner cylinder according to claim 4, characterized in that: Connection seats are provided on the second hanging plates at both ends of the cylinder body. Fixing plates are provided on the connection plates. The fixing plates are arranged in a U-shape and provided with mounting holes. Multiple connection holes are provided on the connection seats. The second hanging plate and the connection holes are connected by connection bolts.

6. The cement preheater inner cylinder according to claim 5, characterized in that: The connection holes are arranged in an oblong shape.

7. The cement preheater inner cylinder according to claim 5, characterized in that: Rib plates are connected between the fixing plates and the connection seats.

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