Composite high-strength ceramic tertiary air damper

Abstract

The utility model discloses a composite high-strength ceramic tertiary air flashboard which comprises a seat body and a flashboard body, the flashboard body is formed by splicing a plurality of ceramic blocks in a mortise and tenon joint mode, and the seat body and a row of ceramics at the top end of the flashboard body are spliced and fixed in a mortise and tenon joint mode. The utility model has the advantages of high stability, strong anti-seismic property and convenience in disassembly.

Description

Technical Field

[0001] The utility model relates to a composite high-strength ceramic tertiary wind damper plate. Background Art

[0002] At present, the conventional tertiary air damper adopts the structure of heat-resistant steel frame + wear-resistant castable outer lining, which is mostly used for on-site casting in cement plants. This structure has low cost and convenient material source, but this tertiary air damper has great disadvantages:

[0003] 1. The wear-resistant castable on the surface does not meet the requirements of wear resistance and high temperature resistance. Especially for the gate plates made on site in cement plants, ordinary mullite and high-aluminum wear-resistant castables are randomly used, which have high impurity content, low strength at high temperature, high thermal expansion coefficient of the main material, and poor thermal shock resistance, resulting in the deterioration of the overall performance of the gate plates;

[0004] 2. Structural design defects. When the structural strength of the material cannot meet the requirements of wear resistance and erosion resistance, metal skeletons and steel plates have to be used as supporting structures in large quantities. The thermal expansion rate of metal at 900°C is about 12.5×10-6%, which is 3 times that of the outer lining castable. Therefore, the thermal expansion of metal materials at high temperatures will cause the gate to "crack" the castable directly from the inside to the outside. Under high temperatures and the erosion and corrosion of clinker particles, the cracks further expand, causing the castable to fall off over a large area. When the metal skeleton without the protection of the castable is exposed to temperatures above 1000° and the erosion of high-temperature dust, it will quickly wear and burn, causing damage to the entire gate. Even the heat deformation of the exposed metal skeleton directly causes the gate to "get stuck" and lose its adjustment function;

[0005] 3. The excellent performance of castables is not only determined by the material itself, but also by the strict construction and molding process, such as the amount of water added, water temperature, maintenance conditions, heat treatment conditions, etc. Limited by actual conditions, the advantages of low cost and fast construction of the gate plate with steel structure + casting are actually achieved by completely omitting the strict construction process. The quality of the gate plate does not meet the actual technical requirements at all, and the quality of this cast-in-place gate plate is basically uncontrollable, resulting in the gate plate's use effect being good and bad, and even breaking after two or three months of use.

[0006] The poor quality of the tertiary air damper leads to poor use effect. The falling, wear and deformation of the damper lead to unstable tertiary air volume, affecting the burning quality and coal consumption of cement clinker. Some heat-resistant steel + castable dampers even break suddenly, which has a great impact on the normal operation of the production line. Frequent high-altitude operations and maintenance and replacement are also a very troublesome problem. Summary of the invention

[0007] The utility model provides a composite high-strength ceramic tertiary air damper plate in order to solve the problems existing in the prior art.

[0008] The technical solutions adopted in this utility model are:

[0009] A composite high-strength ceramic tertiary air damper comprises a seat body and a damper body, wherein the damper body is formed by splicing a plurality of ceramic blocks by using mortise and tenon joints, and the seat body and a row of ceramics at the top of the damper body are spliced ​​and fixed by using mortise and tenon joints.

[0010] Furthermore, the seat body is made of steel or ceramic.

[0011] Furthermore, a mounting ear is provided at the top of the seat body.

[0012] Furthermore, the seat body and the gate body are spliced ​​together to form a rectangular gate.

[0013] The utility model has the following beneficial effects:

[0014] 1) High stability: The mortise and tenon structure makes the connection more secure through the mutual engagement of the concave and convex parts, which can effectively resist the action of external forces and improve the stability of the structure.

[0015] 2) Strong earthquake resistance: The mortise and tenon structure can absorb part of the energy through its own elasticity and deformation, reducing the risk of structural damage and collapse.

[0016] 3) Disassembly: The connection of the mortise and tenon structure is relatively flexible, easy to disassemble and repair, and conducive to the maintenance and renewal of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the utility model.

[0018] Figure 2 This is a structural diagram of the utility model.

[0019] In the figure, the seat body is drawn with section lines. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 2 The utility model is a composite high-strength ceramic tertiary air damper. The damper is rectangular and comprises a seat body 1 and a damper body 2. The damper body 2 is formed by splicing a plurality of ceramic blocks by mortise and tenon joints. The seat body 1 and the top row of ceramics of the damper body 2 are spliced ​​and fixed by mortise and tenon joints.

[0022] A mounting ear 11 is provided at the top of the seat body 1 for mounting the gate.

[0023] The gate body is made of ceramic, which has the characteristics of impact resistance, wear resistance, strong corrosion resistance, and excellent thermal stability. Its various performances are more than three times that of heat-resistant steel.

[0024] The upper seat 1 of the gate is made of heat-resistant steel or ceramics, and the lower gate body 2 is made entirely of high-strength ceramic materials, with no metal frame in the middle. This avoids the occurrence of cracks and breakage caused by inconsistent expansion between the internal metal frame and the external ceramic and castable materials during rapid cooling and heating.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A composite high-strength ceramic tertiary air damper, characterized in that: It comprises a seat body (1) and a gate body (2), wherein the gate body (2) is formed by splicing a plurality of ceramic blocks by means of mortise and tenon joints, and a row of ceramics at the top of the seat body (1) and the gate body (2) are spliced ​​and fixed by means of mortise and tenon joints.

2. The composite high-strength ceramic tertiary air damper according to claim 1, characterized in that: The seat body (1) is made of steel or ceramic.

3. The composite high-strength ceramic tertiary air damper according to claim 1, characterized in that: A mounting ear (11) is provided at the top end of the seat body (1).

4. The composite high-strength ceramic tertiary air damper according to claim 1, characterized in that: The seat body (1) and the gate body (2) are spliced ​​together to form a rectangular gate.

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