Ladle refining furnace
By designing the lifting mechanism and vacuuming mechanism in the ladle refining furnace, the problems of difficulty in lifting the cover plate and unpurified exhaust in traditional equipment are solved, and automated operation and environmental protection effects are achieved.
Patent Information
- Application Number
- CN202421046430.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-14
AI Technical Summary
When adding slag to the inside of the furnace body, traditional ladle refining furnaces need to work hard to lift the cover body, and the exhaust gases have not been effectively purified, resulting in environmental pollution.
A ladle refining furnace is designed, equipped with a lifting mechanism and a vacuum cleaner. The lifting mechanism automatically rises the cover plate through mechanical drive of the threaded rod and slide seat, which facilitates the addition of slag; the vacuum cleaner purifies the flue gas and uses the water tank to reuse heat through the combination of a fan, a filter box and a water tank.
The automatic lifting of the cover plate is achieved, reducing the difficulty of manpower operation, and effectively purifying the flue gas through the vacuum cleaner mechanism to prevent environmental pollution, improving the convenience of the equipment and environmental performance.
Smart Images
Figure CN222460262U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel production equipment, in particular to a ladle refining furnace. Background Art
[0002] Ladle refining furnace refers to equipment that has the heating and refining functions of a steelmaking furnace. It is used to refine the molten steel from the primary refining furnace (electric arc furnace, open hearth furnace, converter), and can adjust the temperature of the molten steel, process buffer, and meet the needs of continuous casting and continuous rolling. It is an important metallurgical equipment and one of the main refining equipment outside the furnace in steel production.
[0003] The weight and volume of the ladle refining furnace are both large. Therefore, when slag is added into the interior of the furnace body for refining, it is difficult to lift the cover due to its heavy weight. However, the traditional refining furnace does not have a mechanism for automatically lifting the furnace cover and requires the use of external equipment, which is more troublesome to use. In addition, the ladle refining furnace does not effectively purify the exhaust gas, which is easy to pollute the environment. In view of this, a ladle refining furnace is proposed to solve the above problems. Utility Model Content
[0004] The main purpose of the utility model is to provide a ladle refining furnace, which solves the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a ladle refining furnace, comprising a bottom plate, a refining furnace is fixed on the bottom plate, a cover plate is provided on the refining furnace, a graphite electrode is provided on the cover plate, a lifting mechanism is provided on the bottom plate, and a dust collecting mechanism is provided on the bottom plate;
[0006] The lifting mechanism comprises a fixed box, a rotatable threaded rod is vertically arranged in the fixed box, a sliding seat which can move up and down is threadedly connected to the threaded rod, extension plates are fixed on both sides of the cover plate, and a column is fixed between the extension plate and the sliding seat.
[0007] Furthermore, one end of the threaded rod is driven by an external motor to rotate.
[0008] Furthermore, the dust suction mechanism includes an exhaust pipe, a water tank, a filter box and a fan. An exhaust pipe is fixedly provided on the outer wall of the refining furnace and at the upper end. One end of the exhaust pipe is connected to the filter box. A fan is fixed on the bottom plate. A filter screen is vertically arranged in the filter box. One end of the fan is connected to the other end of the filter box.
[0009] Furthermore, a water tank is fixed on the bottom plate, and the exhaust pipes are distributed in a ring shape in the water tank.
[0010] Furthermore, a rotatable shaft is transversely arranged in the filter box, a brush plate is fixed on the outside of the shaft, and a brush for cleaning dust from the filter is fixed on the brush plate.
[0011] Furthermore, a through hole is formed at one end of the water tank, one end of the rotating shaft passes through the through hole and extends into the water tank, and a plurality of stirring rods are fixed on the rotating shaft.
[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0013] 1. The ladle refining furnace is provided with a lifting mechanism. When it is necessary to add slag into the refining furnace, the lifting mechanism can drive the cover plate to move upward, so as to facilitate the addition of the slag to be refined into the interior of the refining furnace, which is convenient for use.
[0014] 2. The ladle refining furnace is provided with a dust suction mechanism. During the refining process, the user can use the dust suction mechanism to allow the flue gas to enter the filter box, and purify the flue gas through the filter net inside the filter box to prevent direct discharge and pollution to the environment. The preheat in the flue gas can be reused through the setting of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the refining furnace and exhaust pipe of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the dust collection mechanism of the utility model.
[0019] In the figure: 1 bottom plate, 2 refining furnace, 3 cover plate, 4 graphite electrode, 5 lifting mechanism, 501 threaded rod, 502 slide seat, 503 fixed box, 504 column, 505 extension plate, 6 dust suction mechanism, 601 exhaust pipe, 602 water tank, 603 rotating shaft, 604 stirring rod, 605 filter screen, 606 filter box, 607 brush plate, 608 motor, 609 fan. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-2A ladle refining furnace in this embodiment includes a bottom plate 1, a refining furnace 2 is fixed on the bottom plate 1, a cover plate 3 is provided on the refining furnace 2, a graphite electrode 4 is provided on the cover plate 3, a lifting mechanism 5 is provided on the bottom plate 1, and a dust suction mechanism 6 is provided on the bottom plate 1.
[0022] The lifting mechanism 5 includes a fixed box 503, in which a rotatable threaded rod 501 is vertically arranged. One end of the threaded rod 501 is driven by an external motor to rotate the threaded rod 501, which is convenient for driving the threaded rod 501 to rotate. A sliding seat 502 that can move up and down is threadedly connected to the threaded rod 501. Extension plates 505 are fixed on both sides of the cover plate 3, and a column 504 is fixed between the extension plate 505 and the sliding seat 502.
[0023] The device starts an external motor, which drives the threaded rod 501 to rotate, and the threaded rod 501 drives the slide 502 to rise, and the slide 502 drives the column 504 to rise, and then drives the cover plate 3 on the extension plate 505 to rise, so as to facilitate the addition of slag to be refined into the interior of the refining furnace 2 body 1, which is convenient for use.
[0024] See also Figure 3-4 The dust collection mechanism 6 in this embodiment includes an exhaust pipe 601, a water tank 602, a filter box 606 and a fan 609. An exhaust pipe 601 is fixedly provided on the outer wall of the refining furnace 2 and at the upper end. One end of the exhaust pipe 601 is connected to the filter box 606. A fan 609 is fixed on the bottom plate 1. A filter screen 605 is vertically arranged in the filter box 606. One end of the fan 609 is connected to the other end of the filter box 606.
[0025] The device starts the fan 609 to generate suction in the exhaust pipe 601, sucking the smoke into the exhaust pipe 601, and then transporting it to the filter box 606, and then filtering the smoke through the filter net 605.
[0026] A water tank 602 is fixed on the bottom plate 1 , and an exhaust pipe 601 is distributed in the water tank 602 in a ring shape, so as to heat the water in the water tank 602 .
[0027] At the same time, a rotatable shaft 603 is horizontally arranged in the filter box 606, and a brush plate 607 is fixed on the outside of the shaft 603. A brush for cleaning dust from the filter screen 605 is fixed on the brush plate 607, so as to facilitate cleaning of dust on the filter screen 605.
[0028] In addition, a through hole is opened at one end of the water tank 602, and one end of the rotating shaft 603 passes through the through hole and extends into the water tank 602. A plurality of stirring rods 604 are fixed on the rotating shaft 603. The stirring rods 604 stir the water body to make the water body inside the water tank 602 fluid, thereby preventing the water body from heating up slowly due to the long distance between the water body and the exhaust pipe 601, thereby improving the efficiency of heat recovery inside the water tank 602.
[0029] The working principle of the above embodiment is:
[0030] During use, when the user needs to add slag to the interior of the refining furnace 2 for refining, the external motor is started to drive the threaded rod 501 to rotate, and then the threaded rod 501 drives the slide 502 to rise, and then the slide 502 drives the column 504 to rise, and then drives the cover plate 3 on the extension plate 505 to rise, so as to facilitate the addition of the slag to be refined into the interior of the refining furnace 2 body 1, which is convenient for use.
[0031] During the refining process, the user can start the fan 609 to generate suction in the exhaust pipe 601 to suck the smoke into the exhaust pipe 601. When the smoke is in the water tank 602, the water in the water tank 602 can be heated. The smoke is then transported to the filter box 606 and filtered through the filter net 605.
[0032] When the filter 605 needs to be cleaned, the motor 608 is started, and the motor 608 drives the rotating shaft 603 to rotate, and the rotating shaft 603 drives the brush plate 607 to clean the dust on the filter 605. At this time, the stirring rod 604 can also be driven to stir the water in the water tank 602 to prevent the water from heating up slowly due to the long distance between the water body and the exhaust pipe 601.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0034] 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 ladle refining furnace, comprising a bottom plate (1), characterized in that: A refining furnace (2) is fixed on the bottom plate (1), a cover plate (3) is provided on the refining furnace (2), a graphite electrode (4) is provided on the cover plate (3), a lifting mechanism (5) is provided on the bottom plate (1), and a dust collecting mechanism (6) is provided on the bottom plate (1); The lifting mechanism (5) comprises a fixed box (503), a rotatable threaded rod (501) is vertically arranged in the fixed box (503), a sliding seat (502) that can move up and down is threadedly connected to the threaded rod (501), extension plates (505) are fixed on both sides of the cover plate (3), and a column (504) is fixed between the extension plate (505) and the sliding seat (502).
2. The ladle refining furnace according to claim 1, characterized in that: One end of the threaded rod (501) is driven by an external motor to rotate the threaded rod (501).
3. The ladle refining furnace according to claim 1, characterized in that: The dust collecting mechanism (6) comprises an exhaust pipe (601), a water tank (602), a filter box (606) and a fan (609); an exhaust pipe (601) is fixedly provided on the outer wall of the refining furnace (2) and at the upper end; one end of the exhaust pipe (601) is connected to the filter box (606); a fan (609) is fixed on the bottom plate (1); a filter screen (605) is vertically provided in the filter box (606); one end of the fan (609) is connected to the other end of the filter box (606).
4. The ladle refining furnace according to claim 3, characterized in that: A water tank (602) is fixed on the bottom plate (1), and an exhaust pipe (601) is distributed in a ring shape inside the water tank (602).
5. The ladle refining furnace according to claim 3, characterized in that: A rotatable rotating shaft (603) is transversely arranged in the filter box (606), a brush plate (607) is fixed on the outside of the rotating shaft (603), and a brush for cleaning dust from the filter screen (605) is fixed on the brush plate (607).
6. The ladle refining furnace according to claim 3, characterized in that: A through hole is formed at one end of the water tank (602), and one end of the rotating shaft (603) passes through the through hole and extends into the water tank (602). A plurality of stirring rods (604) are fixed on the rotating shaft (603).