A tray fixing structure

By designing a pallet fixing structure with an arc-shaped support plate and pressure plate, the problem of pallets being difficult to disassemble and replace in the rotary kiln was solved, enabling rapid pallet replacement and extending their service life, thereby improving the operating efficiency of the rotary kiln.

CN224945200UActive Publication Date: 2026-11-06NANJING XIPU HEAVY MASCH CO LTD
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Patent Information

Application Number
CN202522585929.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-11-06
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

Existing pallets are difficult to disassemble and replace in rotary kilns, especially under high temperature and impact conditions, which leads to pallet breakage and makes replacement difficult.

Method used

A tray fixing structure was designed, including an arc-shaped support plate and an arc-shaped pressure plate. The tray is fixed to the front wall of the smoke chamber by a connector, and the arc-shaped pressure plate is detachable to facilitate quick replacement of the tray.

Benefits of technology

This enables quick disassembly and replacement of the pallets, improving their service life and the operating efficiency of the rotary kiln.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a tray fixing structure, which includes an arc-shaped support plate, an arc-shaped pressure plate, and multiple trays. The arc-shaped support plate is fixedly installed on the front wall of the smoke chamber. The multiple trays are arranged in an arc shape and overlap the surface of the arc-shaped support plate. Each tray includes a connecting plate, a bent plate located on the upper part of the connecting plate, and a baffle located at the end of the bent plate. The connecting plate, the bent plate, and the baffle are integrally formed. The lower part of the connecting plate is fixed to the front wall of the smoke chamber by a connector. The cross-section of the arc-shaped pressure plate is a Z-shape formed by two right-angle bends. The arc-shaped pressure plate is integrally formed by a first plate segment, a second plate segment, and a third plate segment. The upper part of the connecting plate is located between the second plate segment and the third plate segment. The first plate segment is fixed to the front wall of the smoke chamber by a fastener. This utility model can realize the quick disassembly and replacement of the trays.
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Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, and in particular to a pallet fixing structure. Background Technology

[0002] Rotary kilns are crucial equipment in cement production, undertaking the complex process of calcining raw meal into cement clinker. The stability of the raw meal entering the kiln directly impacts its operational efficiency. Generally, the kiln tail and smoke chamber of a rotary kiln are connected, and raw meal enters the kiln through pallets installed on the smoke chamber. The installation of these pallets requires high precision: they must be securely fitted after installation, and their arrangement must be smooth and rounded. Furthermore, as this is the channel through which raw meal enters the kiln, it is subject to the impact of the material flow, which can cause the pallets to break due to repeated excessive impact, necessitating replacement. During replacement, the high temperature, impact, and deformation at the upper and lower clamping points make it difficult to disassemble the original pallet, and replacing it with a new one is also challenging. Therefore, we propose a pallet fixing structure. Summary of the Invention

[0003] The problem to be solved by this utility model is that existing pallets used for conveying raw materials are difficult to disassemble and replace.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tray fixing structure, including an arc-shaped support plate, an arc-shaped pressure plate, and multiple trays. The arc-shaped support plate is fixedly disposed on the front wall of the smoke chamber. The multiple trays are arranged in an arc shape and overlap the surface of the arc-shaped support plate. Each tray includes a connecting plate, a bent plate located on the upper part of the connecting plate, and a baffle located at the end of the bent plate. The connecting plate, the bent plate, and the baffle are integrally formed. The lower part of the connecting plate is fixed to the front wall of the smoke chamber by a connector. The cross-section of the arc-shaped pressure plate is a Z-shape formed by two right-angle bends. The arc-shaped pressure plate is integrally formed by a first plate segment, a second plate segment, and a third plate segment in sequence. The upper part of the connecting plate is located between the second plate segment and the third plate segment. The first plate segment is fixed to the front wall of the smoke chamber by a fastener.

[0005] As a preferred embodiment of the tray fixing structure of this utility model, the connecting plate has through holes on both sides of its lower part, and the connecting member includes a bolt passing through the through hole and the front wall of the smoke chamber, with a nut threaded onto the outer wall of the bolt.

[0006] In a preferred embodiment of the pallet fixing structure of this utility model, a reinforcing plate is fixed between the connecting plate and the bending plate, and the connecting plate, the bending plate, the baffle and the reinforcing plate are integrally formed.

[0007] As a preferred embodiment of the tray fixing structure of this utility model, the first plate segment is provided with a plurality of mounting holes spaced apart on its upper part, the fixing member includes a fixing bolt passing through the mounting hole and the front wall of the smoke chamber, the outer wall of the fixing bolt is threaded with a fixing nut, and the rear wall of the smoke chamber is welded with a sealing box covering the fixing bolt and the fixing nut.

[0008] In a preferred embodiment of the tray fixing structure described in this utility model, a plurality of reinforcing ribs are provided at equal intervals between the first plate segment and the second plate segment.

[0009] The beneficial effects of this utility model are as follows: multiple trays are arranged in an arc shape and their bottoms overlap with an arc-shaped support plate. The arc-shaped support plate is used to support the weight of multiple trays. The upper part of multiple trays is pressed against the front wall of the smoke chamber by an arc-shaped pressure plate. Multiple trays are fixed to the front wall of the smoke chamber by connectors. If a tray is damaged after long-term use, the damaged tray can be removed and a new tray can be installed after disassembling the arc-shaped pressure plate, thus realizing the quick disassembly and replacement of the trays. Attached Figure Description

[0010] 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. Among them: Figure 1 This is a visual diagram of a tray fixing structure.

[0011] Figure 2 This is a schematic diagram of the structure of a tray in a tray fixing structure.

[0012] Figure 3 This is a schematic diagram of an arc-shaped pressure plate in a pallet fixing structure.

[0013] Figure 4 This is a schematic diagram showing the arrangement of an arc-shaped support plate, an arc-shaped pressure plate, and multiple pallets in a pallet fixing structure.

[0014] Figure 5 This is a cross-sectional view of an arc-shaped support plate, an arc-shaped pressure plate, and a support plate fixed to the front wall of a smoke chamber in a support plate fixing structure. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0016] Reference Figures 1-5This is the first embodiment of the present invention, which provides a tray fixing structure, including an arc-shaped support plate 100, an arc-shaped pressure plate 200, and multiple trays 300. The arc-shaped support plate 100 is fixedly disposed on the front wall of the smoke chamber 1. The multiple trays 300 are arranged in an arc shape and overlap the surface of the arc-shaped support plate 100. Each tray 300 includes a connecting plate 301, a bent plate 302 located on the upper part of the connecting plate 301, and a baffle 303 located at the end of the bent plate 302. 01. The bending plate 302 and the baffle 303 are integrally formed. The lower part of the connecting plate 301 is fixed to the front wall of the smoke chamber 1 by the connector 400. The cross-section of the arc-shaped pressure plate 200 is a Z-shape formed by two right-angle bends. The arc-shaped pressure plate 200 is integrally formed by the first plate segment 201, the second plate segment 202 and the third plate segment 203 in sequence. The upper part of the connecting plate 301 is located between the second plate segment 202 and the third plate segment 203. The first plate segment 201 is fixed to the front wall of the smoke chamber 1 by the fastener 500.

[0017] In use, the arc-shaped support plate 100 is pre-fixed to the front wall of the smoke chamber 1. Multiple support plates 300 are arranged in an arc shape and overlapped on the surface of the arc-shaped support plate 100. The gaps between the multiple support plates 300 are adjusted to ensure they are arc-shaped with uniform gaps and a smooth transition. The arc-shaped support plate 100 can support the weight of the multiple support plates 300. The multiple support plates 300 are respectively fixed to the front wall of the smoke chamber 1 via connectors 400. Then, the third plate segment 203 of the arc-shaped pressure plate 200 presses down on the upper part of the connecting plate 301 of the multiple support plates 300. The arc-shaped pressure plate 200 is then fixed to the smoke chamber 1 via fasteners 500. The front wall of chamber 1 is then refractory material can be applied to the surface of multiple support plates 300. If any of the support plates 300 located between the arc-shaped support plate 100 and the arc-shaped pressure plate 200 is damaged under the impact of raw material, the arc-shaped pressure plate 200 can be removed first, then the damaged support plate 300 can be removed and replaced with a new support plate 300, and then the arc-shaped pressure plate 200 can be reinstalled on the front wall of the smoke chamber 1. This allows for the quick removal and replacement of multiple support plates 300. Even if the support plates 300 located between the arc-shaped support plate 100 and the arc-shaped pressure plate 200 detach from the front wall of the smoke chamber 1 under the impact of raw material, they will not fall off directly. Example 2

[0018] Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0019] Specifically, the connecting plate 301 has through holes on both sides of its lower part, and the connecting piece 400 includes a bolt 401 that passes through the through hole and the front wall of the smoke chamber 1, and a nut 402 is threaded onto the outer wall of the bolt 401.

[0020] After arranging multiple pallets 300 in an arc shape and overlapping them on the surface of the arc-shaped support plate 100, bolts 401 are passed through the through holes and the front wall of the smoke chamber 1, and then nuts 402 are screwed in. The pallets 300 are fixed to the front wall of the smoke chamber 1 by the connection of bolts 401 and nuts 402.

[0021] Preferably, a reinforcing plate 304 is fixed between the connecting plate 301 and the bending plate 302, and the connecting plate 301, the bending plate 302, the baffle 303 and the reinforcing plate 304 are integrally formed.

[0022] The bending plate 302 withstands the impact of raw materials, and the reinforcing plate 304 fixed between the connecting plate 301 and the bending plate 302 can enhance the pressure-bearing capacity of the bending plate 302.

[0023] Preferably, the upper part of the first plate segment 201 is provided with a plurality of mounting holes spaced apart, the fastener 500 includes a fixing bolt 501 passing through the mounting hole and the front wall of the smoke chamber 1, the outer wall of the fixing bolt 501 is threaded with a fixing nut 502, and a sealing box 503 is welded to the rear wall of the smoke chamber 1 and covers the outside of the fixing bolt 501 and the fixing nut 502.

[0024] After the position of the arc-shaped pressure plate 200 is determined, the fixing bolt 501 is passed through the mounting hole on the first plate segment 201 and the front wall of the smoke chamber 1. Then, the fixing nut 502 is tightened and welded to the fixing bolt 501. The sealing box 503 is welded to the outside of the fixing bolt 501 and the fixing nut 502 on the rear wall of the smoke chamber 1 to prevent the raw material inside the smoke chamber 1 from corroding the fixing bolt 501 and the fixing nut 502, so that the arc-shaped pressure plate 200 can be firmly connected to the front wall of the smoke chamber 1.

[0025] Preferably, multiple reinforcing ribs 204 are provided at equal intervals between the first plate segment 201 and the second plate segment 202.

[0026] The reinforcing rib 204 set between the first plate segment 201 and the second plate segment 202 helps to enhance the overall structural strength of the arc-shaped pressure plate 200.

[0027] In use, since the arc-shaped support plate 100 is fixed to the front wall of the smoke chamber 1, multiple support plates 300 are arranged in an arc shape and overlapped on the surface of the arc-shaped support plate 100. The gaps between the multiple support plates 300 are adjusted to make the multiple support plates 300 arc-shaped with uniform gaps and smooth transition. The arc-shaped support plate 100 can support the weight of the multiple support plates 300. The bolt 401 is passed through the through hole and the front wall of the smoke chamber 1, and then the nut 402 is screwed in. The support plates 300 are fixed to the front wall of the smoke chamber 1 through the connection of the bolt 401 and the nut 402. Then, the third plate segment 203 of the arc-shaped pressure plate 200 is pressed against the upper part of the connecting plate 301 of the multiple support plates 300. After the position of the arc-shaped pressure plate 200 is determined, the fixing bolt 501 is passed through the mounting hole on the first plate segment 201 and the front wall of the smoke chamber 1, and then the fixing nut 502 is tightened. The sealing box 503 is welded to the outside of the fixing bolts 501 and fixing nuts 502 to prevent the raw material inside the smoke chamber 1 from corroding the fixing bolts 501 and fixing nuts 502, so that the arc-shaped pressure plate 200 can be firmly connected to the front wall of the smoke chamber 1. Then, the casting material can be applied to the surface of multiple support plates 300. If any of the multiple support plates 300 located between the arc-shaped support plate 100 and the arc-shaped pressure plate 200 is damaged under the impact of raw material, the arc-shaped pressure plate 200 can be removed first, and then the damaged support plate 300 can be removed and replaced with a new support plate 300. Then, the arc-shaped pressure plate 200 can be reinstalled on the front wall of the smoke chamber 1, so as to realize the quick removal and replacement of multiple support plates 300. Even if the support plates 300 located between the arc-shaped support plate 100 and the arc-shaped pressure plate 200 are separated from the front wall of the smoke chamber 1 under the impact of raw material, they will not fall off directly.

[0028] 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 tray fixing structure, characterized in that: The system includes an arc-shaped support plate (100), an arc-shaped pressure plate (200), and multiple support plates (300). The arc-shaped support plate (100) is fixedly installed on the front wall of the smoke chamber (1). The multiple support plates (300) are arranged in an arc shape and overlap the surface of the arc-shaped support plate (100). Each support plate (300) includes a connecting plate (301), a bent plate (302) located on the upper part of the connecting plate (301), and a baffle (303) located at the end of the bent plate (302). The connecting plate (301), the bent plate (302), and the baffle (303) are... The connecting plate (301) is integrally formed. The lower part of the connecting plate (301) is fixed to the front wall of the smoke chamber (1) by the connecting piece (400). The cross-section of the arc-shaped pressure plate (200) is a Z-shape formed by two right-angle bends. The arc-shaped pressure plate (200) is integrally formed by the first plate segment (201), the second plate segment (202) and the third plate segment (203) in sequence. The upper part of the connecting plate (301) is located between the second plate segment (202) and the third plate segment (203). The first plate segment (201) is fixed to the front wall of the smoke chamber (1) by the fixing piece (500).

2. The tray fixing structure as described in claim 1, characterized in that: The connecting plate (301) has through holes on both sides of its lower part. The connecting piece (400) includes a bolt (401) that passes through the through hole and the front wall of the smoke chamber (1). The bolt (401) is threaded with a nut (402) on its outer wall.

3. The tray fixing structure as described in claim 1, characterized in that: A reinforcing plate (304) is fixed between the connecting plate (301) and the bending plate (302), and the connecting plate (301), bending plate (302), baffle (303) and reinforcing plate (304) are integrally formed.

4. The tray fixing structure as described in claim 1, characterized in that: The first plate segment (201) has multiple mounting holes spaced apart on its upper part. The fastener (500) includes a fixing bolt (501) that passes through the mounting hole and the front wall of the smoke chamber (1). The outer wall of the fixing bolt (501) is threaded with a fixing nut (502). The rear wall of the smoke chamber (1) is welded with a sealing box (503) that covers the fixing bolt (501) and the fixing nut (502).

5. The tray fixing structure as described in claim 1, characterized in that: Multiple reinforcing ribs (204) are provided at equal intervals between the first plate segment (201) and the second plate segment (202).