Smelting equipment for producing ultralow-temperature-resistant nodular cast iron

Abstract

The utility model discloses smelting equipment for producing ultralow-temperature-resistant nodular cast iron, and relates to the technical field of nodular cast iron production, in particular to smelting equipment for producing ultralow-temperature-resistant nodular cast iron, which comprises a fixed base, a smelting furnace is assembled on the fixed base, and a closed purification base is mounted on the smelting furnace. The closed purification base is arranged on the smelting furnace, a flow guide pouring nozzle is fixedly fixed on the smelting furnace, a plugging plate for sealing the pouring nozzle is movably connected to the closed purification base, the plugging plate is opened when liquid is discharged, and an external closing plate which is opened when the liquid is discharged is movably connected to the closed purification base. According to the smelting equipment for ultralow-temperature-resistant nodular cast iron production, under the action of the draught fan, waste gas generated during nodular cast iron preparation can be smoothly collected, then passes through the gas outlet cavity, is purified by the activated carbon adsorption plate and is finally discharged, and it is guaranteed that the produced waste gas can be smoothly purified and discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of ductile iron production, in particular to smelting equipment for producing ultra-low temperature resistant ductile iron. Background Art

[0002] Ductile iron is a high-strength cast iron material with comprehensive properties close to those of steel. Based on its excellent properties, it has been successfully used to cast some parts with complex forces and high requirements for strength, toughness and wear resistance. Ductile iron has rapidly developed into a cast iron material second only to gray cast iron. Ductile iron is obtained by spheroidizing and inoculating spheroidal graphite, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining a higher strength than carbon steel. Ductile iron needs to be smelted during production, and a large amount of harmful waste gas is often generated during the preparation of ductile iron. In order to purify its waste gas, a fan is usually set above the inclination of the smelting furnace to collect the waste gas. However, due to its open collection method, the waste gas generated will still be emitted into the air, resulting in poor purification effect of the waste gas, and when it is dumped after smelting, the waste gas will still be emitted into the air, seriously affecting the purification effect of the waste gas. For this reason, we propose a smelting equipment for the production of ultra-low temperature resistant ductile iron. Utility Model Content

[0003] The utility model provides smelting equipment for producing ultra-low temperature resistant ductile iron, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a smelting equipment for ultra-low temperature resistant ductile iron production, comprising a fixed base, a smelting furnace is mounted on the fixed base, a closed purification base is mounted on the smelting furnace, and a pouring nozzle with inherent diversion is fixed on the smelting furnace, a sealing plate for closing the pouring nozzle is movably connected to the closed purification base, and the sealing plate is opened when liquid is discharged, an external sealing plate that is opened when liquid is discharged is movably connected to the closed purification base, and an internal sealing plate that is opened during smelting is movably connected to the closed purification base, and an internal sealing plate that is opened during smelting is movably connected to the internal part of the closed purification base, an air outlet is fixed on the top of the closed purification base, and an activated carbon adsorption plate for purifying exhaust gas is installed inside the air outlet, the air outlet can be connected to the interior of the smelting furnace through the internal sealing plate, and the air outlet can be connected to the outside when the external sealing plate is opened.

[0005] Optionally, connecting columns are fixed on both sides of the smelting furnace, the connecting columns are movably connected to the fixed base, and a first motor is fixed on the fixed base, and the output shaft of the first motor is fixedly connected to one end of one of the connecting columns.

[0006] Optionally, an air intake cavity and an air outlet cavity are provided inside the closed purification base, the air outlet cavity is connected to the air outlet, and a fan is fixed at the bottom of the air outlet cavity.

[0007] Optionally, the air outlet cavity is connected to the air intake cavity through a fan, and the bottoms of both sides of the internal closing plate are provided with latching teeth and are engaged with gears.

[0008] Optionally, the gear is connected to the closed purification base via a rotating shaft, and a second motor is fixed in the closed purification base, and the output shaft of the second motor is connected to the center of one side of one of the gears.

[0009] Optionally, one end of the internal closing plate is fixed to the external closing plate, a spring is fixed to one end of the external closing plate, and one end of the spring is fixed to one end of the blocking plate.

[0010] The utility model has the following beneficial effects:

[0011] 1. The smelting equipment for the production of ultra-low temperature resistant ductile iron can smoothly collect the waste gas generated during the preparation of ductile iron under the action of the fan, and then pass through the air outlet cavity and be purified by the activated carbon adsorption plate to be finally discharged, ensuring that the waste gas produced can be purified and discharged smoothly, avoiding environmental pollution caused by direct discharge of waste gas, thereby making its production more environmentally friendly.

[0012] 2. The smelting equipment for producing ultra-low temperature resistant ductile iron has a sealing plate that closes the mouth during smelting, so that the exhaust gas can only be discharged through the internal sealing plate, and when the ductile iron liquid is poured, the exhaust gas that comes out smoothly is sucked through the external sealing plate, so that the exhaust gas can be collected as much as possible, reducing the amount directly discharged into the air, ensuring that the exhaust gas can be fully purified, and thus making the purification of the exhaust gas more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the smelting furnace connection of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the smelting furnace connection of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the internal closed plate connection of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of point A of the utility model.

[0018] In the figure: 1. fixed base; 2. smelting furnace; 3. closed purification base; 4. first motor; 5. air outlet; 6. pouring nozzle; 7. sealing plate; 8. external closing plate; 9. connecting column; 10. activated carbon adsorption plate; 11. suction chamber; 12. fan; 13. internal closing plate; 14. second motor; 15. gear; 16. spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 5 A smelting equipment for producing ultra-low temperature resistant ductile iron comprises a fixed base 1, a smelting furnace 2 is mounted on the fixed base 1, a closed purification base 3 is mounted on the smelting furnace 2, and a pouring spout 6 with inherent diversion is fixed on the smelting furnace 2, when pouring, the diversion of the pouring spout 6 enables it to discharge smoothly, a sealing plate 7 for closing the pouring spout 6 is movably connected to the closed purification base 3, and the sealing plate 7 is opened when discharging liquid, when smelting, the sealing plate 7 can be closed to prevent the exhaust gas from being directly emitted into the air through the pouring spout 6, an external sealing plate 8 opened when discharging liquid is movably connected to the closed purification base 3, and then when pouring, the exhaust gas accompanying the pouring can be absorbed so that it can be purified and discharged, and the interior of the closed purification base 3 is movably connected with an internal sealing plate 8 opened when smelting Plate 13, so that during smelting, the exhaust gas in the smelting furnace 2 can only be discharged through the internal closed plate 13, so that the exhausted exhaust gas can be fully purified, and the top of the closed purification base 3 is fixed with an exhaust port 5, and the purified exhaust gas is discharged into the air through the exhaust port 5, and at the same time, an activated carbon adsorption plate 10 for purifying the exhaust gas is installed inside the exhaust port 5. Under the action of the activated carbon adsorption plate 10, the exhaust gas can be purified, making its production more environmentally friendly, and the exhaust port 5 can be connected with the interior of the smelting furnace 2 through the internal closed plate 13, and then during smelting, the exhaust gas can pass through the internal closed plate 13 and then be purified and discharged, and at the same time, the exhaust port 5 can be connected with the outside when the external closed plate 8 is opened, and then when dumping, the exhaust gas can pass through the external closed plate 8 and then be purified and discharged.

[0021] See also Figures 1 to 3, connecting columns 9 are fixed on both sides of the smelting furnace 2, and the smelting furnace 2 can be tilted under the drive of the connecting columns 9, and the connecting columns 9 are movably connected to the fixed base 1. Under the limitation of the fixed base 1, the connecting columns 9 can be rotated at a fixed position on the fixed base 1, and a first motor 4 is fixed on the fixed base 1, and the output shaft of the first motor 4 is fixedly connected to one end of one of the connecting columns 9. Under the drive of the output shaft of the first motor 4, the connecting columns 9 can drive the smelting furnace 2 to rotate, and the first motor 4 is connected to a controller, and the controller controls the first motor 4. The controller and the first motor 4 are both existing technologies and are not described here.

[0022] See also Figures 1 to 4 An air intake chamber 11 and an air outlet chamber are provided inside the closed purification base 3. The inhaled air can enter the air outlet chamber through the air intake chamber 11. The air outlet chamber is connected to the air outlet 5. A fan 12 is fixed at the bottom of the air outlet chamber. Under the action of the fan 12, the exhaust gas can be smoothly inhaled.

[0023] See also Figures 1 to 5 The air outlet chamber is connected with the air intake chamber 11 through the fan 12. The bottoms of both sides of the internal closing plate 13 are provided with latching teeth and are engaged with gears 15. Driven by the gears 15, the internal closing plate 13 can be moved, and then the internal closing plate 13 can be closed or opened. When the internal closing plate 13 is closed, the ductile iron liquid can be prevented from entering the air intake chamber 11.

[0024] See also Figures 1 to 5 The gear 15 is connected to the closed purification base 3 through a rotating shaft, and then rotates at a fixed position on the closed purification base 3, and a second motor 14 is fixed in the closed purification base 3, and the output shaft of the second motor 14 is connected to the center of one side of the gear 15. Driven by the output shaft of the second motor 14, the gear 15 can drive the internal closed plate 13 to move, and the second motor 14 is connected to a controller, which controls the second motor 14. The controller and the second motor 14 are both existing technologies and are not described here.

[0025] See also Figures 1 to 5 One end of the internal closing plate 13 is fixed to the external closing plate 8. Driven by the internal closing plate 13, the external closing plate 8 can move. A spring 16 is fixed to one end of the external closing plate 8. One end of the spring 16 is fixed to one end of the blocking plate 7. When the internal closing plate 13 is opened, the spring 16 is in a compressed state. When the external closing plate 8 and the blocking plate 7 are opened, the external closing plate 8 can be opened before the blocking plate 7, thereby ensuring that the exhaust gas can be fully sucked away and purified when it is dumped.

[0026] In summary, when the smelting equipment for producing ultra-low temperature resistant ductile iron is used, when the ductile iron is smelted, the blocking plate 7 is closed to the mouth 6, the external sealing plate 8 is in a closed state, and the internal sealing plate 13 is in an open state. Under the action of the fan 12, the exhaust gas in the smelting furnace 2 is sucked into the air intake chamber 11, and then transported to the air outlet chamber, and then flows to the air outlet 5. Under the action of the activated carbon adsorption plate 10, it is purified and finally discharged. Driven by the output shaft of the first motor 4, the smelting furnace 2 can be tilted, so that the smelted ductile iron liquid can be smoothly poured out, and before pouring , driven by the output shaft of the second motor 14, the gear 15 can rotate, and then the internal sealing plate 13 can move, so that the internal sealing plate 13 can be in a closed state, and driven by the internal sealing plate 13, the external sealing plate 8 can move and then open, and its spring 16 is gradually decompressed along with the movement of the external sealing plate 8, and then drives the sealing plate 7 to move, so that the sealing plate 7 can open and pour to the mouth 6. When the ductile iron liquid is poured, the exhaust gas can pass through the external sealing plate 8 and enter the suction chamber 11, and be discharged through the outlet 5 under the purification of the activated carbon adsorption plate 10.

[0027] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smelting device for producing ultra-low temperature resistant ductile iron, comprising a fixed base (1), a smelting furnace (2) mounted on the fixed base (1), a closed purification base (3) mounted on the smelting furnace (2), and a pouring nozzle (6) with inherent flow guidance fixed on the smelting furnace (2), characterized in that: The closed purification base (3) is movably connected with a sealing plate (7) for sealing the pouring nozzle (6), and the sealing plate (7) is opened when liquid is discharged. The closed purification base (3) is movably connected with an external sealing plate (8) that is opened when liquid is discharged. The closed purification base (3) is internally movably connected with an internal sealing plate (13) that is opened during smelting. An air outlet (5) for exhausting gas is fixed on the top of the closed purification base (3), and an activated carbon adsorption plate (10) for purifying waste gas is installed inside the air outlet (5). The air outlet (5) can be connected to the inside of the smelting furnace (2) through the internal sealing plate (13), and the air outlet (5) can be connected to the outside when the external sealing plate (8) is opened.

2. The smelting equipment for producing ultra-low temperature resistant ductile iron according to claim 1, characterized in that: Connecting columns (9) are fixed on both sides of the smelting furnace (2), and the connecting columns (9) are movably connected to the fixed base (1). A first motor (4) is fixed on the fixed base (1), and an output shaft of the first motor (4) is fixedly connected to one end of one of the connecting columns (9).

3. The smelting equipment for producing ultra-low temperature resistant ductile iron according to claim 1, characterized in that: An air intake cavity (11) and an air outlet cavity are provided inside the closed purification base (3); the air outlet cavity is connected to the air outlet (5); and a fan (12) is fixed at the bottom of the air outlet cavity.

4. The smelting equipment for producing ultra-low temperature resistant ductile iron according to claim 3, characterized in that: The air outlet cavity is connected to the air intake cavity (11) through the fan (12), and the bottoms of both sides of the internal closing plate (13) are provided with latching teeth and are engaged with gears (15).

5. The smelting equipment for producing ultra-low temperature resistant ductile iron according to claim 4, characterized in that: The gear (15) is connected to the closed purification base (3) via a rotating shaft, and a second motor (14) is fixed inside the closed purification base (3), and the output shaft of the second motor (14) is connected to the center of a circle on one side of one of the gears (15).

6. The smelting equipment for producing ultra-low temperature resistant ductile iron according to claim 5, characterized in that: One end of the internal sealing plate (13) is fixed to the external sealing plate (8), a spring (16) is fixed to one end of the external sealing plate (8), and one end of the spring (16) is fixed to one end of the blocking plate (7).

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