Opening and closing driving cover for smelting and pouring

Abstract

The utility model discloses a smelting and pouring opening and closing driving cover which comprises a sealing bin arranged on the periphery of a casting ladle, an exhaust pipe is arranged on the side portion of the sealing bin, a sealing cover is arranged on the top of the sealing bin, and the sealing cover is driven by a driving mechanism to open or close the sealing bin. A first movable support moving front and back along the sealing bin is arranged in the sealing bin, a second movable support moving left and right along the first movable support is arranged on the first movable support, a movable groove allowing the casting ladle to penetrate through is formed in the first movable support, and a positioning groove allowing the casting ladle to penetrate through is formed in the second movable support. The waste gas treatment device has the characteristic of convenience and thoroughness in waste gas emission.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ladle exhaust device, especially a smelting pouring opening and closing drive cover. BACKGROUND

[0002] When molten iron is poured into a ladle for smelting ductile cast iron, spheroidization and inoculation are key steps. The purpose of spheroidization is to convert flake graphite in molten iron into spherical graphite, thereby significantly improving the strength, toughness and ductility of the material. The purpose of inoculation is to refine graphite balls and improve the distribution and roundness of graphite balls, thereby further optimizing the performance of cast iron and making it have better comprehensive performance.

[0003] The spheroidization and inoculation method includes pouring-in method, in-mold inoculation method and wire feeding method. In the pouring-in method, spheroidizing agent and inoculating agent are put into the ladle, and then molten iron is poured in. The impact force and stirring action of the molten iron are used to mix and react the spheroidizing agent and inoculating agent with the molten iron. During the spheroidization and inoculation process, the spheroidizing agent and inoculating agent mix with the molten iron, which may produce harmful gases and dust such as magnesium vapor, sulfur oxides, carbon monoxide and nitrogen oxides.

[0004] Existing workshops are generally equipped with powerful exhaust systems to exhaust dust and harmful gases. However, due to the large space of the workshop, it is easy to miss the extraction. In different pouring conditions, the ladle needs to be moved to different positions, which also easily leads to incomplete exhaust of dust and harmful gases. INVENTION CONTENTS

[0005] The purpose of the utility model is to provide a smelting pouring opening and closing drive cover. The utility model has the characteristics of convenient and complete exhaust of waste gas.

[0006] The technical scheme of the utility model is: a smelting pouring opening and closing drive cover, including a sealing bin arranged around the ladle, an air extraction pipe arranged on the side of the sealing bin, a sealing cover arranged on the top of the sealing bin, the sealing cover being driven by a driving mechanism to open or close the sealing bin; a first moving support arranged inside the sealing bin and moving forward and backward along the sealing bin, a second moving support arranged on the first moving support and moving left and right along the first moving support, a movable slot arranged on the first moving support for the ladle to pass through, and a positioning slot arranged on the second moving support for the ladle to pass through.

[0007] In the foregoing smelting pouring opening and closing drive cover, the bottom of the first moving support is provided with a traveling wheel driven by a moving motor, one side of the second moving support is provided with a push cylinder, and the bottom of the second moving support is provided with a moving wheel.

[0008] In the foregoing smelting pouring opening and closing drive cover, an exhaust fan is arranged on the air extraction pipe, a gas detector is arranged in the sealing bin, and the gas detector is electrically connected with the exhaust fan through a controller.

[0009] The inner side of the sealing bin is provided with a heat-resistant layer, and the outer side of the sealing bin is provided with a heat insulation layer.

[0010] The driving mechanism comprises a rotating shaft installed on one side of the sealing cover, the two ends of the rotating shaft are respectively rotationally connected with the sealing bin, one end of the rotating shaft is provided with a sector gear, the sector gear is meshed with a driving gear, and the driving gear is connected with a driving motor.

[0011] The outer part of the rotating shaft is sleeved with a torsion spring, one end of the torsion spring is connected with the sealing cover, and the other end of the torsion spring is connected with the sealing bin.

[0012] The periphery of the positioning groove on the second moving support is provided with a plurality of limiting columns, the ladle is provided with a positioning block limited between adjacent limiting columns, and the side of the limiting column facing the positioning block is provided with a buffer pad.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a sealing bin is wrapped ladle, the heat, harmful gas and dust produced in the spheroidization and incubation process when casting nodular cast iron are isolated from the workshop, and are discharged through the air extraction pipe to carry out waste gas treatment, avoid harmful gas and dust to spread to the outside, cause pollution, wherein the sealing cover is driven by the driving mechanism, when pouring, the sealing cover is driven by the driving mechanism to open the sealing bin, and the molten iron is poured into the ladle, when spheroidization and incubation, the sealing cover is driven by the driving mechanism to close the sealing bin, and the air extraction treatment is convenient, complete. First moving support and second moving support are arranged in the sealing bin, and the position of the ladle is adjusted through the first moving support and the second moving support, so that it corresponds with the pouring outlet, thereby adapting to different pouring conditions, improving pouring stability and accuracy, and not affecting the air extraction treatment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model.

[0016] Figure 2 It is the structure schematic diagram of the second moving support.

[0017] The marks in the drawings are: 1, sealing bin;11, air extraction pipe;12, exhaust fan;13, gas detector;14, heat-resistant layer;15, heat insulation layer;2, sealing cover;21, rotating shaft;22, sector gear;23, driving gear;24, driving motor;25, torsion spring;3, first moving support;31, walking wheel;4, second moving support;41, push cylinder;42, moving wheel;43, positioning groove;44, limiting column;45, buffer pad;5, ladle;51, positioning block. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Example:

[0021] like Figures 1-2 As shown, the melting and casting opening and closing drive cover includes a sealed chamber 1 surrounding the ladle 5, with an exhaust pipe 11 on the side of the sealed chamber 1 and a sealed cover 2 on the top of the sealed chamber 1. The sealed cover 2 is driven by a drive mechanism to open or close the sealed chamber 1. Inside the sealed chamber 1, there is a first movable support 3 that moves back and forth along the sealed chamber 1. The first movable support 3 has a second movable support 4 that moves left and right along the first movable support 3. The first movable support 3 has an active groove for the ladle 5 to pass through, and the second movable support 4 has a positioning groove 43 for the ladle 5 to pass through.

[0022] This invention uses a sealed chamber 1 to enclose the ladle 5, isolating the heat, harmful gases, and dust generated during the spheroidizing inoculation process of ductile iron casting from the workshop. These gases are then discharged through an extraction pipe 11 for waste gas treatment, preventing the spread of harmful gases and dust to the outside environment and causing pollution. The sealed cover 2 is driven by a drive mechanism. During pouring, the drive mechanism opens the sealed chamber 1, facilitating the pouring of molten iron into the ladle 5. During spheroidizing inoculation, the drive mechanism closes the sealed chamber 1, facilitating exhaust gas treatment. Waste gas discharge is convenient and thorough. A first movable support 3 and a second movable support 4 are also installed inside the sealed chamber 1. These supports adjust the position of the ladle 5 to correspond with the pouring outlet, adapting to different pouring conditions, improving pouring stability and accuracy, without affecting the exhaust gas treatment.

[0023] The bottom of the first mobile support 3 is provided with a walking wheel 31 driven by a mobile motor, one side of the second mobile support 4 is provided with a push cylinder 41, and the bottom of the second mobile support 4 is provided with a mobile wheel 42. The first mobile support 3 moves forward and backward in the sealed warehouse 1 through the walking wheel 31, and the second mobile support 4 moves left and right on the first mobile support 3 through the push of the push cylinder 41 and the cooperation of the mobile wheel 42. The other side of the second mobile support 4 is provided with a limiting device to prevent the second mobile support 4 from falling off the first mobile support 3. As shown in Figure 1 The limiting device can be a connecting rod structure. One end of the connecting rod structure is hinged to the first mobile support 3, and the other end of the connecting rod structure is hinged to the second mobile support 4. The sealed warehouse 1 and the first mobile support 3 are both provided with guide rails to guide the moving direction of the walking wheel and the mobile wheel.

[0024] The exhaust pipe 11 is provided with an exhaust fan 12, and the sealed warehouse 1 is provided with a gas detector 13, which is electrically connected to the exhaust fan 12 through a controller. The content of harmful gas in the sealed warehouse 1 is detected by the gas detector 13, so that the exhaust capacity of the exhaust fan 12 is controlled by the controller, so that the harmful gas is better and faster sucked, and the cleanliness of the sealed warehouse 1 after the exhaust is completed is ensured.

[0025] The inner side of the sealed warehouse 1 is provided with a heat-resistant layer 14, and the outer side of the sealed warehouse 1 is provided with a heat insulation layer 15. The heat-resistant layer 14 is arranged to avoid damage to the sealed warehouse 1 when high-temperature molten iron is poured, and the heat insulation layer 15 is arranged to reduce the diffusion of heat and avoid the adverse effects of heat on the workshop and workers.

[0026] The driving mechanism includes a rotating shaft 21 mounted on one side of the sealing cover 2, both ends of the rotating shaft 21 are rotatably connected to the sealed warehouse 1, one end of the rotating shaft 21 is provided with a sector gear 22, the sector gear 22 is engaged with a driving gear 23, and the driving gear 23 is connected with a driving motor 24. The driving motor 24 drives the sector gear 22 to rotate through the driving gear 23, the sector gear 22 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the sealing cover 2 to rotate, thereby realizing the opening or closing of the sealed warehouse 1.

[0027] The rotating shaft 21 is externally sleeved with a torsional spring 25, one end of the torsional spring 25 is connected with the sealing cover 2, and the other end of the torsional spring 25 is connected with the sealed warehouse 1. When the driving motor 24 drives the sealing cover 2 to open, the torsional spring 25 is in a taut state, and when the driving motor 24 is powered off, the torsional spring 25 returns to the initial state, realizing the automatic closing of the sealing cover 2 and reducing energy consumption; and the sealing cover 2 can be tightly attached to the sealed warehouse 1, improving the sealing performance and reducing the overflow of waste gas.

[0028] The second mobile support 4 is provided with a plurality of limiting columns 44 on the periphery of the positioning groove 43, the ladle 5 is provided with a positioning block 51 limited between the adjacent limiting columns 44, and the side of the limiting column 44 towards the positioning block 51 is provided with a buffer pad 45. The limiting column 44 is used to limit and fix the installation position of the ladle 5, and the buffer pad 45 is used to reduce the impact force during the pouring of molten iron, so that the position of the ladle 5 is avoided from being deviated, and the stability of the ladle 5 during pouring is improved.

[0029] The part not described in detail in the utility model is the prior art, and therefore is not specifically described here.

Claims

1. A smelted cast open-close drive cover, characterized by: The application relates to a ladle sealing device, which comprises a sealing bin (1) arranged at the periphery of a ladle (5), a suction pipe (11) arranged at the side of the sealing bin (1), a sealing cover (2) arranged at the top of the sealing bin (1), and a driving mechanism for driving the sealing cover (2) to open or close the sealing bin (1); the inside of the sealing bin (1) is provided with a first moving support (3) moving forward and backward along the sealing bin (1), the first moving support (3) is provided with a second moving support (4) moving left and right along the first moving support (3), the first moving support (3) is provided with a movable slot for the ladle (5) to pass through, and the second moving support (4) is provided with a positioning slot (43) for the ladle (5) to pass through.

2. The smelt pouring open-close drive cover according to claim 1, characterized in that: The bottom of the first moving support (3) is provided with a walking wheel (31) driven by a moving motor, one side of the second moving support (4) is provided with a pushing cylinder (41), and the bottom of the second moving support (4) is provided with a moving wheel (42).

3. The smelt pouring open / close drive cover according to claim 1, characterized in that: The suction pipe (11) is provided with an exhaust fan (12), the sealing bin (1) is provided with a gas detector (13), and the gas detector (13) is electrically connected with the exhaust fan (12) through a controller.

4. The smelt spout toggle drive cover of claim 1, wherein: The inside of the sealing bin (1) is provided with a heat-resistant layer (14), and the outside of the sealing bin (1) is provided with a heat insulation layer (15).

5. The smelt spout toggle drive cover of claim 1, wherein: The driving mechanism comprises a rotating shaft (21) arranged at one side of the sealing cover (2), both ends of the rotating shaft (21) are rotationally connected with the sealing bin (1), one end of the rotating shaft (21) is provided with a sector gear (22), the sector gear (22) is engaged with a driving gear (23), and the driving gear (23) is connected with a driving motor (24).

6. The smelt spout toggle drive cover of claim 5, wherein: The rotating shaft (21) is externally sleeved with a torsion spring (25), one end of the torsion spring (25) is connected with the sealing cover (2), and the other end of the torsion spring (25) is connected with the sealing bin (1).

7. The smelt spout damper of claim 1, wherein: The second moving support (4) is provided with a plurality of limiting columns (44) at the periphery of the positioning slot (43), the ladle (5) is provided with a positioning block (51) limited between adjacent limiting columns (44), and the side of the limiting column (44) facing the positioning block (51) is provided with a buffer pad (45).

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