Anti-seismic insulating and heat-insulating ceramic fiber special-shaped part

Abstract

The utility model discloses an anti-seismic insulation and heat insulation ceramic fiber special-shaped part which is used for anti-seismic, insulation and heat insulation of a submerged arc furnace discharging pipe or a stand column. Comprising a ceramic fiber special-shaped part provided with an upper disc, and the middle of the ceramic fiber special-shaped part is of a stepped structure with a large upper portion, a small lower portion and a stepped hole in the middle. A middle spacer sleeve with the same shape as the surface of an inner step can be arranged on the surface of the inner step of the step structure of the ceramic fiber special-shaped part to be protected through a fastening filler block which is arranged in the middle spacer sleeve and composed of two half filler blocks with the same shape, and the fastening filler block is arranged in the middle spacer sleeve and composed of two half filler blocks with the same shape. And a circular positioning slot is formed in the middle of the fastening filler block. The fastening filler block is in a big-end-up step shape, wherein a disc is arranged at the top of the fastening filler block, and the outer surface of the fastening filler block is the same as the inner surface of the middle spacer sleeve in shape. The step structure is provided with three layers. The utility model has the characteristics of vibration reduction, good insulation and heat insulation effect, convenience in maintenance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic fiber refractory materials, in particular to a ceramic fiber special-shaped part with anti-vibration, insulation and heat-insulating effects, which is used for a feed pipe or a column of a submerged arc furnace. Background Art

[0002] The bottom of the feed pipe and column of the submerged arc furnace needs to be insulated and heat-insulated with related parts. At present, ceramic fiber materials are generally used to make insulation and heat-insulating parts. Ceramic fiber parts are widely used as insulation and heat-insulating parts of submerged arc furnaces because of their light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and mechanical vibration resistance.

[0003] At present, ceramic fiber materials used as insulation components are mostly single-layer single-piece structures, and multiple single-layer single-piece structures can also be used in combination. When used in combination, the insulation and insulation effect of the contact surface between the sheets is poor. In addition, since the electric arc furnace will generate large vibrations during operation, most of the vibrations will be transmitted to the bottom of the furnace column. Since the single-layer single-piece insulation and insulation components have weak vibration resistance, they are easily damaged, resulting in a short service life. In addition, this type of insulation and insulation components is inconvenient to maintain, resulting in delayed production and increased production costs. Summary of the invention

[0004] The utility model aims to provide a seismic-resistant, insulating and heat-insulating ceramic fiber special-shaped part to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an earthquake-resistant, insulating and heat-insulating ceramic fiber special-shaped part, comprising a ceramic fiber special-shaped part with an upper plate, the middle part of the ceramic fiber special-shaped part is a stepped structure with a larger upper part and a smaller lower part and a stepped hole in the middle, the ceramic fiber special-shaped part can be fastened to the inner step surface of the stepped structure to be protected by a fastening liner composed of two half-liners, and a middle spacer sleeve with the same shape as the inner step surface is provided, and a fastening liner is provided inside the middle spacer sleeve, the fastening liner block is composed of two half-liners with the same shape, and a circular positioning slot is provided in the middle of the fastening liner block.

[0006] A preferred implementation of the utility model ceramic fiber special-shaped part is that the fastening liner block is provided with a disc on the top and has an outer surface shape that is the same as the inner surface shape of the middle spacer sleeve and has a stepped shape with a larger top and a smaller bottom.

[0007] A preferred implementation of the ceramic fiber special-shaped part of the utility model is that the stepped structure has three layers.

[0008] Furthermore, the shape of the upper plate is circular, oval or square.

[0009] A preferred implementation of the ceramic fiber special-shaped part of the utility model is that a wedge-shaped fastening groove capable of driving a wedge-shaped block is arranged at the inner surface edge of the fastening lining block close to the positioning slot.

[0010] Furthermore, the number of the wedge-shaped fastening grooves is 2-3.

[0011] A preferred implementation of the ceramic fiber special-shaped part of the utility model is that the upper surface of the middle spacer sleeve is flush with the upper surface of the upper plate.

[0012] A preferred implementation of the ceramic fiber special-shaped part of the utility model is that the upper surface of the fastening liner is flush with the upper surface of the middle spacer sleeve.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the ceramic fiber special-shaped parts adopt an integral stepped structure, which can eliminate the problem of poor insulation and heat insulation effect caused by the stacking of single-piece structures, and improve the insulation and heat insulation capacity of the ceramic fiber parts; the ceramic fiber special-shaped parts adopt a stepped structure with a large top and a small bottom, and the feed pipe or column of the submerged arc furnace to be protected can be firmly locked with the stepped structure by fastening the lining block, which can avoid damage to the ceramic fiber special-shaped parts caused by the vibration of the pipe or column, and extend the service life; an intermediate spacer is set between the stepped structure and the fastening lining block, which can very conveniently disassemble and replace the ceramic fiber special-shaped parts, and avoid problems such as long maintenance and replacement time leading to delayed production. The utility model has the characteristics of good vibration reduction, insulation and heat insulation effects, and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0015] Figure 1 It is a schematic diagram of the axial projection of a special-shaped part structure according to an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Axonometric projection diagram from an upward angle;

[0017] Figure 3 yes Figure 1 Explosion diagram of ceramic fiber special-shaped parts;

[0018] Figure 4 yes Figure 2 Schematic diagram of the explosion of ceramic fiber special-shaped parts.

[0019] The numbers in the figure indicate: 1-ceramic fiber special-shaped part; 2-fastening lining block; 3-middle spacer sleeve; 4-upper plate; 5-positioning slot; 6-step structure; 7-step hole; 8-inner step surface; 9-wedge-shaped fastening groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] See also Figure 1-Figure 4 As shown, in this embodiment, the earthquake-resistant, insulating, and heat-insulating ceramic fiber shaped part 1 includes an upper plate 4, and the shape of the upper plate 4 is preferably circular, and may also be elliptical or square. The middle part of the ceramic fiber shaped part 1 is a stepped structure 6 with a stepped hole 7 in the middle, which is larger at the top and smaller at the bottom. The stepped structure 6 generally has three layers, and the surface outside the stepped structure 6 is called the outer surface, and the surface inside the stepped hole 7 is called the inner stepped surface 8. The outer surface of the stepped structure 6 and the inner stepped surface 8 are substantially the same in shape.

[0022] In this embodiment, a middle spacer sleeve 3 is arranged in the step hole 7 of the step structure 6. The middle spacer sleeve 3 contacts the inner step surface 8. The middle spacer sleeve 3 also has an outer surface and an inner surface. The outer surface of the middle spacer sleeve 3 has the same shape as the inner step surface 8. The two can be embedded in and separated from each other, and the outer surface and inner surface of the middle spacer sleeve 3 have basically the same shape.

[0023] In this embodiment, a fastening liner 2 is provided inside the middle spacer sleeve 3. The fastening liner 2 is composed of two half-liners of the same shape. The two half-liners of the same shape are used in pairs to form the whole of the fastening liner 2. A circular positioning slot 5 is provided in the middle of the fastening liner 2. The positioning slot 5 originally accommodates the feed pipe or column of the submerged arc furnace to be protected. A wedge-shaped fastening groove 9 into which a wedge-shaped block can be driven is provided at the inner surface edge of the fastening liner 2 near the positioning slot 5. After the wedge-shaped fastening groove 9 is cut along the axis, the cross-section of the wedge-shaped fastening groove 9 is a triangle extending downward to the position of about 1 / 4-1 / 3 thickness of the upper plate 4. Three wedge-shaped fastening grooves 9 can be provided, and a wedge-shaped block capable of withstanding high temperature is driven between the fastening liner 2 and the tubular object to be protected, so that the ceramic fiber special-shaped parts are more stable and firm.

[0024] In this embodiment, the upper surface of the middle spacer sleeve 3 is flush with the upper surface of the upper plate 4 , and the upper surface of the fastening liner block 2 is flush with the upper surface of the middle spacer sleeve 4 .

[0025] The utility model uses ceramic fiber as the basic raw material for making earthquake-resistant, insulating and heat-insulating ceramic fiber special-shaped parts, which are formed by vacuum filtration or prefabrication process. The main steps include crushing refractory wool, proportioning, adding binder after trapping the materials, and vacuum filtration or prefabrication. After drying in a furnace, the parts are trimmed to form finished ceramic fiber special-shaped parts.

[0026] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] As described above, the above 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. However, 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 embodiments of the present application.

Claims

1. A seismic-resistant, insulating and heat-insulating ceramic fiber shaped part, comprising a ceramic fiber shaped part (1) provided with an upper plate (4), characterized in that: The ceramic fiber profiled part (1) has a stepped structure (6) in the middle which is larger at the top and smaller at the bottom and has a stepped hole (7) in the middle. An intermediate spacer sleeve (3) having the same shape as the inner step surface (8) is provided on the inner step surface (8) of the stepped structure (6). A fastening liner (2) is provided inside the intermediate spacer sleeve (3). The fastening liner (2) is composed of two half-liners of the same shape. A circular positioning slot (5) is provided in the middle of the fastening liner (2).

2. The earthquake-resistant, insulating and heat-insulating ceramic fiber special-shaped part according to claim 1, characterized in that: The fastening lining block (2) is provided with a disc on the top and has an outer surface shape that is the same as the inner surface shape of the middle spacer sleeve (3) and is in a stepped shape with a larger top and a smaller bottom.

3. The earthquake-resistant, insulating and heat-insulating ceramic fiber shaped part according to claim 1 is characterized in that: The stepped structure (6) has three layers.

4. The earthquake-resistant, insulating and heat-insulating ceramic fiber shaped part according to claim 3 is characterized in that: The upper plate (4) is in the shape of a circle, an ellipse or a square.

5. The earthquake-resistant, insulating and heat-insulating ceramic fiber shaped part according to claim 1, characterized in that: A wedge-shaped fastening groove (9) into which a wedge-shaped block can be driven is provided at the inner surface edge of the fastening lining block (2) close to the positioning slot (5).

6. The earthquake-resistant, insulating and heat-insulating ceramic fiber shaped part according to claim 5, characterized in that: The number of the wedge-shaped fastening grooves (9) is 2-3.

7. The earthquake-resistant, insulating and heat-insulating ceramic fiber special-shaped part according to claim 1, characterized in that: The upper surface of the middle spacer sleeve (3) is flush with the upper surface of the upper plate (4).

8. The earthquake-resistant, insulating and heat-insulating ceramic fiber shaped part according to claim 1, characterized in that: The upper surface of the fastening liner (2) is flush with the upper surface of the middle spacer sleeve (3).

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