Mullite push plate structure

Abstract

The utility model belongs to industrial kiln technical field discloses a kind of mullite push plate structures, including push plate body, push plate body is made of mullite material, the bottom of push plate body is equipped with multiple T-shaped guide slots;Rolling body module, rolling body module includes T-shaped pedestal, T-shaped pedestal is made of high-temperature-resistant alloy, and the shape of T-shaped pedestal is matched with T-shaped guide slot and is embedded therein by gap fit, high-temperature-resistant roller is installed below T-shaped pedestal, and part of high-temperature-resistant roller protrudes the bottom surface of push plate body, push plate body is formed by at least two independent first mullite plate and second mullite plate along the direction of advance splicing.The utility model replaces traditional sliding friction by high-temperature-resistant roller, converts surface contact into rolling friction, can significantly reduce the resistance of advance, again with high-temperature-resistant roller protruding bottom surface design cooperation, ensure that push plate body does not directly contact with guide rail, reduce guide rail and push plate wear, to prolong the service life of both sides and avoid jam kiln accident.

Description

Technical Field

[0001] This utility model relates to the field of industrial kiln technology, and in particular to a mullite pusher plate structure. Background Technology

[0002] Mullite pushers are key lining load-bearing bodies in kilns and are widely used in high-temperature heat treatment processes in fields such as electronic ceramics, magnetic materials, and glass sintering. Traditional mullite pushers are usually a single piece of refractory plate with its bottom surface directly in contact with the kiln's guide rails, sliding forward under the push of the propulsion mechanism.

[0003] The existing technology has the following problems: 1) High frictional resistance and high energy consumption: The integral push plate and the guide rail are in surface contact sliding friction. Especially at high temperature, the friction coefficient is high, which leads to the propulsion system needing to output huge thrust, resulting in significant energy consumption and easy overload of propulsion hydraulic cylinder or servo motor. 2) Easy to wear and short life: The bottom of the pusher plate and the guide rail are constantly rubbed together, causing both to wear out quickly. Once the bottom of the pusher plate is worn into a deep groove or the guide rail is damaged, it will affect the stability of operation and even cause kiln jamming. The overall replacement cost of the pusher plate is high and the downtime for maintenance is long. Therefore, we have proposed a mullite pusher plate structure. Utility Model Content

[0004] In view of the problems of high frictional resistance, high energy consumption, easy wear and short life of existing mullite push plates, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A mullite push plate structure includes a push plate body made of mullite material, and multiple T-shaped guide grooves are formed at the bottom of the push plate body. The rolling element module includes a T-shaped base embedded in the T-shaped guide groove. The T-shaped base is made of high-temperature resistant alloy and its shape matches the T-shaped guide groove and is embedded therein through clearance fit. High-temperature resistant rollers are rotatably mounted on the bottom of the T-shaped base via a rotating shaft, and a portion of the high-temperature resistant rollers protrudes from the bottom surface of the push plate body.

[0006] As a technical solution of the mullite pusher plate structure of this utility model, the pusher plate body is formed by splicing together at least two independent first mullite plates and second mullite plates along the pushing direction.

[0007] As a technical solution of the mullite push plate structure of this utility model, the adjacent first mullite plate and the second mullite plate are connected by a mortise and tenon structure, the mortise and tenon structure includes a trapezoidal groove opened on the push plate body and a trapezoidal tenon adapted to the trapezoidal groove.

[0008] As a technical solution of the mullite pusher plate structure of this utility model, wherein: the first mullite plate and the second mullite plate are embedded with a reinforcing mesh, and the reinforcing mesh is woven from high-temperature resistant metal wire.

[0009] As a technical solution of the mullite pusher plate structure of this utility model, a thermal expansion gap is reserved between the upper surface of the T-shaped base and the top of the T-shaped guide groove.

[0010] As a technical solution of the mullite push plate structure described in this utility model, the rotating shaft is a high-temperature ceramic shaft or a high-temperature alloy shaft with a ceramic coating on its surface.

[0011] As a technical solution of the mullite pusher plate structure described in this utility model, the material of the high-temperature resistant roller is silicon carbide, silicon nitride, or a high-temperature alloy.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model replaces traditional sliding friction with high-temperature resistant rollers, transforming surface contact into rolling friction, which can significantly reduce propulsion resistance. In conjunction with the high-temperature resistant rollers' protruding bottom surface design, it ensures that the pusher plate body does not directly contact the guide rail, reducing wear on the guide rail and pusher plate, thereby extending the service life of both and avoiding kiln jamming accidents.

[0013] 2. This utility model, through its split design combined with mortise and tenon joints, reinforcing mesh, and thermal expansion gap, enables partial replacement and maintenance, reducing downtime. Furthermore, the synergy between materials and structure ensures stable operation under high-temperature conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the main structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] Explanation of reference numerals in the attached figures: In the figure: 1. Push plate body; 101. First mullite slab; 102. Second mullite slab; 103. T-shaped guide groove; 201. Trapezoidal mortise; 202. Trapezoidal tenon; 301. T-shaped base; 302. Rotating shaft; 303. High temperature resistant roller; 4. Thermal expansion gap. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0022] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] Reference Figures 1-4 A mullite push plate structure is provided, which includes a push plate body 1, the push plate body 1 is made of mullite material, and multiple T-shaped guide grooves 103 are opened at the bottom of the push plate body 1. The rolling element module includes a T-shaped base 301 embedded in a T-shaped guide groove 103. The T-shaped base 301 is made of high-temperature resistant alloy and its shape matches the T-shaped guide groove 103 and is embedded therein with a clearance fit. High-temperature resistant rollers 303 are rotatably mounted on the bottom of the T-shaped base 301 via a rotating shaft 302. Part of the high-temperature resistant rollers 303 protrudes from the bottom surface of the push plate body 1. In application, the high-temperature resistant rollers 303 replace traditional sliding friction, transforming surface contact into rolling friction, which can significantly reduce propulsion resistance. The clearance fit between the T-shaped base 301 and the T-shaped guide groove 103 prevents jamming due to high temperature expansion. At the same time, the protruding bottom design of the high-temperature resistant rollers 303 ensures that the push plate body 1 does not directly contact the guide rail, thereby extending the service life of both.

[0024] Reference Figure 1 and Figure 2 The push plate body 1 is formed by splicing at least two independent first mullite slabs 101 and second mullite slabs 102 along the pushing direction. Adjacent first mullite slabs 101 and second mullite slabs 102 are connected by a mortise and tenon structure. The mortise and tenon structure includes a trapezoidal mortise 201 opened on the push plate body 1 and a trapezoidal tenon 202 adapted to the trapezoidal mortise 201. The trapezoidal mortise 201 and the trapezoidal tenon 202 are within tolerance of ±0.1mm. The height of the trapezoidal tenon 202 accounts for 30% of the thickness of the push plate body 1. In application, the split first mullite slab 101 and second mullite slab 102 allow for partial replacement of damaged modules, which significantly reduces maintenance costs. At the same time, the mortise and tenon structure (trapezoidal mortise 201 and trapezoidal tenon 202) absorbs thermal expansion stress, prevents cracking at the splice, and improves structural stability.

[0025] Reference Figures 1-4 The first mullite plate 101 and the second mullite plate 102 are internally embedded with a reinforcing mesh (such as 316L stainless steel or Inconel alloy woven mesh), and the reinforcing mesh is woven from high-temperature resistant metal wire. In application, the high-temperature resistant metal wire woven mesh is embedded inside the mullite plate to enhance the fracture resistance and is suitable for bearing heavy sintered products.

[0026] Reference Figure 3 and Figure 4 A thermal expansion gap 4 is reserved between the upper surface of the T-shaped base 301 and the top of the T-shaped guide groove 103. In application, the thermal expansion gap 4 reserved at the top of the T-shaped base 301 compensates for high temperature expansion and avoids the T-shaped base 301 and the T-shaped guide groove 103 from being squeezed and deformed.

[0027] Reference Figure 3 and Figure 4The rotating shaft 302 is a high-temperature ceramic shaft or a high-temperature alloy shaft with a ceramic coating on its surface. The high-temperature roller 303 is made of silicon carbide, silicon nitride, or a high-temperature alloy. In application, the ceramic rotating shaft 302 or the ceramic-coated shaft can withstand a high temperature of 1500℃, while the silicon carbide / silicon nitride high-temperature roller 303 maintains high-temperature hardness and reduces the risk of deformation.

[0028] This utility model provides a mullite pusher plate structure that replaces traditional sliding friction with high-temperature resistant rollers 303, transforming surface contact into rolling friction, which can significantly reduce pushing resistance. In conjunction with the protruding bottom design of the high-temperature resistant rollers 303, it ensures that the pusher plate body 1 does not directly contact the guide rail, reducing wear on the guide rail and pusher plate, thereby extending the service life of both and avoiding kiln jamming accidents. At the same time, the split design combined with mortise and tenon connections, reinforcing mesh, and thermal expansion gaps 4 enables partial replacement and maintenance, reducing downtime. Furthermore, the synergy of materials and structure ensures stable operation under high-temperature conditions.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mullite pusher plate structure, characterized in that: include: The push plate body (1) is made of mullite material, and multiple T-shaped guide grooves (103) are opened at the bottom of the push plate body (1). The rolling element module includes a T-shaped base (301) embedded in the T-shaped guide groove (103). The T-shaped base (301) is made of high-temperature resistant alloy and its shape matches the T-shaped guide groove (103) and is embedded therein through clearance fit. High-temperature resistant rollers (303) are rotatably mounted on the bottom of the T-shaped base (301) through a rotating shaft (302), and part of the high-temperature resistant rollers (303) protrudes from the bottom surface of the push plate body (1).

2. The mullite pusher plate structure according to claim 1, characterized in that: The push plate body (1) is composed of at least two independent first mullite slabs (101) and second mullite slabs (102) spliced ​​together along the pushing direction.

3. The mullite pusher plate structure according to claim 2, characterized in that: The first mullite slab (101) and the second mullite slab (102) are connected by a mortise and tenon structure, which includes a trapezoidal mortise (201) provided on the push plate body (1) and a trapezoidal tenon (202) that matches the trapezoidal mortise (201).

4. The mullite pusher plate structure according to claim 2, characterized in that: The first mullite slab (101) and the second mullite slab (102) are internally embedded with reinforcing mesh, which is woven from high-temperature resistant metal wire.

5. The mullite pusher plate structure according to claim 1, characterized in that: A thermal expansion gap (4) is reserved between the upper surface of the T-shaped base (301) and the top of the T-shaped guide groove (103).

6. The mullite pusher plate structure according to claim 1, characterized in that: The rotating shaft (302) is a high-temperature ceramic shaft or a high-temperature alloy shaft with a ceramic coating on its surface.

7. The mullite pusher plate structure according to claim 1, characterized in that: The high-temperature resistant roller (303) is made of silicon carbide, silicon nitride, or a high-temperature alloy.

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