A smelting furnace closure lid

By introducing a drive motor and scraper structure into the smelting furnace cover, impurities on the inner wall are automatically cleaned, solving the problem of decreased sealing performance caused by dust accumulation, extending the service life of the furnace cover and maintaining good sealing performance.

CN224681253UActive Publication Date: 2026-08-25ZHONGTIAN JIESHENG (TIANJIN) NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202522097365.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-25
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

After prolonged use, dust and impurities accumulate on the inner wall of existing smelting furnace covers, affecting sealing performance and shortening service life.

Method used

A structure including a furnace cover body, a support plate, a drive motor, a turntable, a lifting cylinder, and a scraper was designed. The drive motor drives the scraper to automatically clean the inner wall of the furnace cover. Combined with refractory materials and sealing design, it ensures airtightness and high temperature resistance.

Benefits of technology

This allows for regular cleaning of the furnace cover's inner wall, preventing impurities from adhering, extending the furnace cover's service life, and maintaining good sealing performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224681253U_ABST
    Figure CN224681253U_ABST
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Abstract

The utility model relates to a smelting furnace closed furnace cover, including the buckle installation on the furnace body furnace cover body and setting on the support plate of furnace body lateral wall, support plate bottom is equipped with first drive motor and second drive motor, and the output shaft of first drive motor is connected with the rotating platform and is fixed with the lifting cylinder on the rotating platform, and the piston rod of lifting cylinder is connected with furnace cover body through n-shaped connecting rod, and the output shaft top of second drive motor is fixed with the scraper, and the upper surface of support plate is equipped with the support cylinder outside second drive motor output shaft. The utility model can carry out the periodic cleaning to the furnace cover body inner wall, avoids the influence of impurity adhesion and uses the furnace cover body.
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Description

Technical Field

[0001] This utility model relates to the technical field of furnace covers for smelting furnaces, and more particularly to a sealed furnace cover for a smelting furnace. Background Technology

[0002] A smelting furnace is a device that melts metal ingots and some scrap metal, adds necessary alloying components, and then, through processes such as slag removal and refining, smelts them into the desired alloy. The furnace cover is the device that seals the furnace body. After prolonged use, existing smelting furnace covers often accumulate dust and impurities on their inner walls, which over time can affect the normal use of the cover and cause damage.

[0003] Chinese utility model patent with announcement number CN222317707U discloses a new furnace cover structure for refining furnaces. It mainly uses a high-pressure air blowing pipe structure to clean impurities attached to the inner wall of the furnace cover. This design is not good for the sealing performance of the furnace cover, which will greatly reduce the service life of the furnace cover. Utility Model Content

[0004] The present invention aims to address the shortcomings of the prior art by providing a sealed furnace cover for a smelting furnace.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A sealing furnace cover for a smelting furnace includes a furnace cover body that is fastened and installed on the furnace body and a support plate disposed on the side wall of the furnace body. A first drive motor and a second drive motor are installed at the bottom of the support plate. The output shaft of the first drive motor is connected to a turntable and a lifting cylinder is fixed on the turntable. The piston rod of the lifting cylinder is connected to the furnace cover body through an n-shaped connecting rod. A scraper is fixed at the top of the output shaft of the second drive motor. A support cylinder is provided on the upper surface of the support plate outside the output shaft of the second drive motor.

[0007] The furnace cover body includes an upper cover and a lower cover connected together;

[0008] The bottom of the lower cover is provided with an inner ring and an outer ring, and the top of the side wall of the furnace body is inserted between the inner ring and the outer ring;

[0009] The top cover has a cavity filled with refractory material, and a sealing plug is installed between the top of the top cover and the cavity.

[0010] The inner wall of the outer ring has a groove and a sealing ring is installed in the groove.

[0011] A connecting seat is provided at the middle of the top of the cover, and a fixing seat is provided at one end of the n-shaped connecting rod. The fixing seat and the connecting seat are fixedly connected by bolts.

[0012] The upper surface of the cover has several reinforcing ribs around the perimeter of the connecting seat.

[0013] The top cover has an n-shaped structure, and the two side plates of the top cover are fixed to the side wall of the bottom cover by bolts.

[0014] The bottom of the support cylinder is provided with a plug-in ring, and the upper surface of the support plate is provided with a plug-in ring groove, and the plug-in ring is set in the plug-in ring groove.

[0015] A handle is provided at the upper end of the outer wall of the support cylinder.

[0016] The beneficial effects of this utility model are: this utility model can regularly clean the inner wall of the furnace cover body, avoiding the adhesion of impurities and affecting the use of the furnace cover body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the furnace cover body of this utility model installed on the furnace body;

[0018] Figure 2 This is a schematic diagram of the upper cover in this utility model;

[0019] Figure 3 This is a schematic diagram of the furnace cover body of this utility model after it has been opened for cleaning;

[0020] In the diagram: 1-furnace cover body; 2-support plate; 3-first drive motor; 4-second drive motor; 5-turntable; 6-lifting cylinder; 7-n-shaped connecting rod; 8-scraper; 9-support cylinder; 10-fixed seat; 11-plug-in ring; 12-handle; 13-furnace body;

[0021] 101-Upper cover; 102-Lower cover; 103-Inner ring; 104-Outer ring; 105-Cavity; 106-Sealing plug; 107-Sealing ring; 108-Connecting seat; 109-Reinforcing rib;

[0022] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] A sealed furnace cover for a smelting furnace, such as Figures 1 to 3 As shown, it includes a furnace cover body 1, a support plate 2, a first drive motor 3, a second drive motor 4, a turntable 5, a lifting cylinder 6, an n-shaped connecting rod 7, a scraper 8, a support cylinder 9, a fixed seat 10, a plug-in ring 11, and a handle 12.

[0028] The furnace cover body 1 is snapped onto the furnace body 13.

[0029] The furnace cover body 1 includes an upper cover 101 and a lower cover 102 connected together. The upper cover 101 has an n-shaped structure, and the two side plates of the upper cover 101 are fixed to the side wall of the lower cover 102 by bolts.

[0030] The upper cover 101 and the lower cover 102 are designed to be detachable for easy replacement. Because the lower cover 101 is more likely to deform and be damaged under high temperature, only the lower cover 102 needs to be replaced.

[0031] The bottom of the lower cover 102 is provided with an inner ring 103 and an outer ring 104. The top of the side wall of the furnace body 13 is inserted between the inner ring 103 and the outer ring 104. The inner wall of the outer ring 104 is provided with a groove and a sealing ring 106 is provided in the groove. The lower cover 102 is sealed to the furnace body 13 through the inner ring 103, the outer ring 104, and the sealing ring 106, ensuring the sealing performance of the smelting furnace.

[0032] The top cover 101 has a cavity 105 filled with refractory material, and a sealing plug 106 is installed between the top of the top cover 101 and the cavity 105. By filling the top cover 101 with refractory material, the fire resistance and high temperature resistance rating of the top cover 101 can be improved.

[0033] A connecting seat 107 is provided at the top center of the top cover 101, and several reinforcing ribs 108 are provided on the upper surface of the top cover 101 around the connecting seat 107 to improve the strength of the connection.

[0034] The support plate 2 is installed on the side wall of the furnace body 13.

[0035] The bottom of the support plate 2 is equipped with a first drive motor 3 and a second drive motor 4. The output shaft of the first drive motor 3 is connected to a turntable 5 and a lifting cylinder 6 is fixed on the turntable 5. The piston rod of the lifting cylinder 6 is connected to the furnace cover body 1 through an n-shaped connecting rod 7. One end of the n-shaped connecting rod 7 is provided with a fixed seat 10. The fixed seat 10 and the connecting seat 107 are fixedly connected by bolts.

[0036] A scraper 8 is fixed to the top of the output shaft of the second drive motor 4, and a support cylinder 9 is provided on the upper surface of the support plate 2 outside the output shaft of the second drive motor 4.

[0037] The support cylinder 9 not only supports the furnace cover body 1, but also creates a closed environment to retain scraped impurities inside for centralized cleaning.

[0038] The bottom of the support cylinder 9 is provided with a plug-in ring 11, the upper surface of the support plate 2 is provided with a plug-in ring groove, the plug-in ring 11 is set in the plug-in ring groove, and the upper end of the outer wall of the support cylinder 9 is provided with a handle 12, which makes it easy to remove the support cylinder 9 and clean the impurities in a concentrated manner.

[0039] After the operation of this utility model is completed, the lifting cylinder 6 drives the n-shaped connecting rod 7 to rise, and the furnace cover body 1 rises and opens. After opening, the first drive motor 3 drives the turntable 5 to rotate. The turntable 5 drives the lifting cylinder 6, the n-shaped connecting rod 7 and the furnace cover body 1 to rotate together. After rotating, the furnace cover body 1 is located directly above the support cylinder 9. Then, the lifting cylinder 6 drives the furnace cover body 1 to descend and contact the support cylinder 9. At this time, the second drive motor 4 starts and drives the scraper 8 to clean the inner wall of the furnace cover body 1, ensuring the cleanliness of the inner wall of the furnace cover body 1.

[0040] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A sealed furnace cover for a smelting furnace, characterized in that, It includes a furnace cover body (1) that is fastened and installed on the furnace body (13) and a support plate (2) set on the side wall of the furnace body (13). A first drive motor (3) and a second drive motor (4) are installed at the bottom of the support plate (2). The output shaft of the first drive motor (3) is connected to a turntable (5) and a lifting cylinder (6) is fixed on the turntable (5). The piston rod of the lifting cylinder (6) is connected to the furnace cover body (1) through an n-shaped connecting rod (7). A scraper (8) is fixed at the top of the output shaft of the second drive motor (4). A support cylinder (9) is provided on the upper surface of the support plate (2) outside the output shaft of the second drive motor (4).

2. The sealing furnace cover for a smelting furnace according to claim 1, characterized in that, The furnace cover body (1) includes an upper cover (101) and a lower cover (102) connected together; The bottom of the lower cover (102) is provided with an inner ring (103) and an outer ring (104), and the top of the side wall of the furnace body (13) is inserted between the inner ring (103) and the outer ring (104); The top cover (101) has a cavity (105) and the cavity (105) is filled with refractory material. A sealing plug (106) is installed between the top of the top cover (101) and the cavity (105).

3. The sealing furnace cover for a smelting furnace according to claim 2, characterized in that, The inner wall of the outer ring (104) is provided with a groove and a sealing ring (107) is provided in the groove.

4. A sealing furnace cover for a smelting furnace according to claim 3, characterized in that, The top of the cover (101) is provided with a connecting seat (108) in the middle position, and one end of the n-shaped connecting rod (7) is provided with a fixing seat (10). The fixing seat (10) and the connecting seat (108) are fixedly connected by bolts.

5. A sealing furnace cover for a smelting furnace according to claim 4, characterized in that, The upper surface of the cover (101) is provided with several reinforcing ribs (109) around the outer circumference of the connecting seat (108).

6. A sealing furnace cover for a smelting furnace according to claim 5, characterized in that, The upper cover (101) has an n-shaped structure, and the two side plates of the upper cover (101) are fixed to the side wall of the lower cover (102) by bolts.

7. A sealing furnace cover for a smelting furnace according to claim 1, characterized in that, The bottom of the support cylinder (9) is provided with a plug ring (11), and the upper surface of the support plate (2) is provided with a plug ring groove, and the plug ring (11) is set in the plug ring groove.

8. A sealing furnace cover for a smelting furnace according to claim 7, characterized in that, A handle (12) is provided on the upper end of the outer wall of the support cylinder (9).

Citation Information

Patent Citations

  • Novel furnace cover structure for refining furnace

    CN222317707U