Smelting furnace for RH refractory material production

Abstract

The utility model discloses a smelting furnace for RH refractory material production, and relates to the technical field of refractory material production, the smelting furnace comprises a furnace body, a discharging mechanism is arranged on the lower portion of one side of the furnace body, and the discharging mechanism comprises a sealing assembly which is arranged on the lower portion of one side of the furnace body and comprises a sealing cover detachably installed on the outer wall of one side of the furnace body; a sealing disc is welded to the inner side of the sealing cover, a discharging opening is formed in one side of the furnace body and is blocked and sealed through the sealing disc, and two limiting rods are welded to the outer wall of the furnace body and penetrate through the sealing cover; the driving assembly is arranged on the outer wall of one side of the furnace body and used for pushing the sealing cover to move horizontally; the material guiding assembly is arranged at the bottom of the furnace body, and the problems that due to the fact that a furnace body of an existing smelting furnace and raw materials in the furnace are integrally heavy, energy is consumed in the mode that the smelting furnace is automatically turned over, and in the pouring process of the furnace body, smelting liquid is located at a high position and falls downwards, and sputtering is likely to happen are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory material production, in particular to a melting furnace for producing RH refractory materials. Background Art

[0002] In the steelmaking and metallurgical industries, RH refining furnaces, as a crucial off-furnace refining equipment, are widely used in the production of low-carbon, low-nitrogen, and low-hydrogen specialty steels. The core of an RH refining furnace, the vacuum chamber and its associated components, operate under high temperatures, high vacuum conditions, and complex chemical atmospheres for extended periods of time. Consequently, the performance requirements for the refractory materials used are extremely high. RH refractories must not only exhibit excellent high-temperature resistance, chemical stability, and thermal shock resistance, but also possess excellent erosion and spalling resistance, and a long service life. To meet these requirements, the melting furnace plays a crucial role in the preparation of RH refractories.

[0003] In the prior art, for example, the patent with publication number CN219223288U discloses a melting furnace for refractory material production, which belongs to the technical field of refractory material production. Through the arrangement of a lifting assembly, a connecting rod, a connecting assembly, a locking assembly and a limit assembly, the lifting assembly can drive the sealing cover to open, which is convenient for discharging. The lifting assembly can also drive the charging cover to open alone, which is convenient for charging. Thus, the staff does not need to manually open it, avoiding the temperature and heat waves during opening to cause harm to the staff, thereby improving the safety of the melting furnace during use.

[0004] According to the prior art mentioned in the above patent, although the safety of the smelting furnace during use is effectively improved, since the smelting furnace body and the raw materials in the furnace are relatively heavy as a whole, the method of automatically turning the smelting furnace is relatively energy-consuming, and the smelting liquid is at a high position and hangs down during the tipping process of the furnace body, which is prone to splashing. For this reason, the present utility model provides a smelting furnace for the production of RH refractory materials. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a melting furnace for the production of RH refractory materials, which solves the problem that the furnace body and the raw materials in the furnace are relatively heavy, so the automatic flipping of the melting furnace is more energy-consuming, and the molten liquid is at a higher position and hangs down during the tipping process, which makes splashing easy.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A melting furnace for RH refractory material production, comprising a furnace body, a discharging mechanism is provided at the lower part of one side of the furnace body, and the discharging mechanism includes:

[0007] A closing assembly is provided at the lower part of one side of the furnace body, comprising a cover detachably mounted on the outer wall of one side of the furnace body, a sealing disk being welded to the inner side of the cover, a discharge port being provided on one side of the furnace body and being blocked and sealed by the sealing disk, and two sets of limiting rods being welded to the outer wall of the furnace body and passing through the cover;

[0008] A driving assembly is provided on one side outer wall of the furnace body and is used to push the cover to move horizontally;

[0009] The material guiding assembly is arranged at the bottom of the furnace body and is used to receive and guide the smelting material flowing out of the furnace body discharge port.

[0010] Preferably, the driving assembly includes a mounting bracket fixed to the outer wall of one side of the furnace body, a stepper motor is installed on the upper part of the mounting bracket, a transmission rod and a rotating rod are rotatably connected to the inner side of the mounting bracket, and the power output end of the stepper motor is connected to the power input end of the transmission rod.

[0011] Preferably, a crankshaft assembly is welded and fixed between the transmission rod and the rotating rod, a movable push rod is rotatably installed inside the crankshaft assembly, and the other end of the movable push rod is movably connected to a shaft block provided on the outer wall of the cover.

[0012] Preferably, the material guide assembly includes a winding wheel fixed to the bottom end of the transmission rod, and a pulling wire is connected to and wound on the winding wheel, and the end of the pulling wire is connected to a material guide plate, and an arc groove is provided on the upper surface of the material guide plate.

[0013] Preferably, T-shaped slide grooves are provided on both sides of the guide plate, and two groups of guide sliders are symmetrically provided on the outer wall of the bottom of the furnace body, and the two groups of guide sliders are slidably installed with the T-shaped slide groove tracks.

[0014] Preferably, a base block is fixed to the bottom of the furnace body, and a tension spring is connected between the base block and the material guide plate.

[0015] Beneficial effects

[0016] The utility model provides a melting furnace for producing RH refractory materials. Compared with the prior art, it has the following advantages:

[0017] (1) The smelting furnace for producing RH refractory materials is designed with a discharge mechanism. The stepper motor on the mounting frame is started, and the stepper motor outputs power to the transmission rod, so that the cover can perform horizontal telescopic movement. When it rotates forward, the cover and the sealing disk are pushed to close the discharge port of the furnace body. When it rotates reversely, the discharge port is opened, and the smelting material is allowed to flow out from the discharge port without turning over and tipping the smelting furnace.

[0018] (2) The smelting furnace for RH refractory material production is designed with a material guide assembly. When driven by a stepper motor, the pulling wire can be pulled by a rotating rod. The pulling wire pulls the material guide plate out from the bottom of the furnace body synchronously. The smelting material is guided by the material guide plate, and the discharge is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the discharge mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the closing component and the driving component of the utility model;

[0022] Figure 4 This is a structural schematic diagram of the material guide assembly of the present utility model.

[0023] In the figure: 1-furnace body, 2-discharging mechanism, 21-closing assembly, 211-sealing cover, 212-sealing disk, 213-limiting rod, 22-driving assembly, 221-mounting frame, 222-stepping motor, 223-transmission rod, 224-rotating rod, 225-crankshaft group, 226-movable push rod, 23-material guide assembly, 231-winding wheel, 232-material guide plate, 233-pulling wire, 234-T-type slide, 235-guide slider, 236-tension spring, 237-base block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model provides a technical solution: a melting furnace for RH refractory material production, comprising a furnace body 1, a discharging mechanism 2 is provided at the lower part of one side of the furnace body 1, and the discharging mechanism 2 includes:

[0026] The closing assembly 21 is provided at the lower portion of one side of the furnace body 1 and includes a cover 211 that is detachably mounted on the outer wall of one side of the furnace body 1. A sealing disk 212 is welded to the inner side of the cover 211. A discharge port is provided on one side of the furnace body 1 and is blocked and sealed by the sealing disk 212. Two sets of limiting rods 213 are welded to the outer wall of the furnace body 1 and pass through the cover 211.

[0027] The driving assembly 22 is provided on one side outer wall of the furnace body 1 and is used to push the cover 211 to move horizontally;

[0028] The material guiding assembly 23 is provided at the bottom of the furnace body 1 and is used to receive and guide the smelting material flowing out of the discharge port of the furnace body 1 .

[0029] In this embodiment, the driving assembly 22 includes a mounting frame 221 fixed to the outer wall of one side of the furnace body 1, and a stepper motor 222 is installed on the upper part of the mounting frame 221. A transmission rod 223 and a rotating rod 224 are rotatably connected to the inner side of the mounting frame 221. The power output end of the stepper motor 222 is connected to the power input end of the transmission rod 223. A crankshaft group 225 is welded and fixed between the transmission rod 223 and the rotating rod 224. A movable push rod 226 is rotatably installed on the inner side of the crankshaft group 225, and the other end of the movable push rod 226 is movably connected to a shaft block provided on the outer wall of the cover 211.

[0030] By starting the stepper motor 222 on the mounting bracket 221 (the specific model of the stepper motor 222 is AM34HD0404-08, and the stepper motor is usually controlled to rotate by a stepper driver. The stepper driver will send a specific pulse signal to the stepper motor to realize rotation. When the pulse signal sent by the stepper driver changes, the rotation direction of the motor will also change accordingly, thereby causing the motor to reverse), the stepper motor 222 outputs power to the transmission rod 223, so that the cover 211 can perform horizontal telescopic movement. When rotating in the forward direction, the cover 211 and the sealing disk 212 are pushed to close the discharge port of the furnace body 1. When rotating in the reverse direction, the discharge port is opened to allow the smelting material to flow out of the discharge port without the need to flip and dump the smelting furnace.

[0031] In this embodiment, the material guide assembly 23 includes a winding wheel 231 fixed to the bottom end of the transmission rod 223, and a pulling wire 233 is connected to and wound on the winding wheel 231, and the end of the pulling wire 233 is connected to a material guide plate 232, an arc groove is provided on the upper surface of the material guide plate 232, and T-shaped slide grooves 234 are provided on both sides of the material guide plate 232. Two groups of guide sliders 235 are symmetrically provided on the outer wall of the bottom of the furnace body 1. The two groups of guide sliders 235 are slidably installed with the tracks of the T-shaped slide grooves 234. A base block 237 is fixed to the bottom of the furnace body 1, and a tension spring 236 is connected between the base block 237 and the material guide plate 232;

[0032] When the stepper motor 222 is driven, the pulling wire 233 can be pulled by the rotating rod 224, and the pulling wire 233 will synchronously pull the guide plate 232 out from the bottom of the furnace body 1. The smelting material is received and guided by the guide plate 232, and the discharge is more convenient.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] During operation, the furnace cover at the top of the furnace body 1 is opened, raw materials for the production of RH refractory materials are added and smelted, and the stepper motor 222 on the mounting frame 221 is started, and the stepper motor 222 outputs power to the transmission rod 223, so that the cover 211 performs horizontal telescopic movement. When rotating forward, the cover 211 and the sealing disk 212 are pushed to close the discharge port of the furnace body 1. When rotating reversely, the discharge port is opened to allow the molten material to flow out of the discharge port without turning over and tipping the smelting furnace; by designing the material guide component 23, the pulling wire 233 can be pulled by the rotating rod 224 when the stepper motor 222 is driven, and the pulling wire 233 pulls the guide plate 232 out from the bottom of the furnace body 1 synchronously. The molten material is received and guided by the guide plate 232, and the discharge is more convenient.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. 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 explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A melting furnace for producing RH refractory materials, comprising a furnace body (1), characterized in that: A discharge mechanism (2) is provided at the lower portion of one side of the furnace body (1), and the discharge mechanism (2) comprises: A sealing assembly (21) is provided at the lower portion of one side of the furnace body (1), comprising a sealing cover (211) detachably mounted on the outer wall of one side of the furnace body (1), a sealing disk (212) being welded to the inner side of the sealing cover (211), a discharge port being provided on one side of the furnace body (1) and being blocked and sealed by the sealing disk (212), and two sets of limiting rods (213) being welded to the outer wall of the furnace body (1) and penetrating the sealing cover (211); A driving assembly (22) is provided on an outer wall of one side of the furnace body (1) and is used to push the sealing cover (211) to move horizontally; The material guiding assembly (23) is arranged at the bottom of the furnace body (1) and is used to receive and guide the smelting material flowing out of the discharge port of the furnace body (1).

2. The melting furnace for producing RH refractory materials according to claim 1, characterized in that: The driving assembly (22) comprises a mounting frame (221) fixed to an outer wall of one side of the furnace body (1); a stepping motor (222) is mounted on the upper portion of the mounting frame (221); a transmission rod (223) and a rotating rod (224) are rotatably connected to the inner side of the mounting frame (221); and a power output end of the stepping motor (222) is connected to a power input end of the transmission rod (223).

3. The melting furnace for producing RH refractory materials according to claim 2, characterized in that: A crankshaft assembly (225) is welded and fixed between the transmission rod (223) and the rotating rod (224). A movable push rod (226) is rotatably mounted inside the crankshaft assembly (225), and the other end of the movable push rod (226) is movably connected to a shaft block provided on the outer wall of the cover (211).

4. The melting furnace for producing RH refractory materials according to claim 2, characterized in that: The material guide assembly (23) includes a reel (231) fixed to the bottom end of the transmission rod (223), and a pulling wire (233) is connected to and wound on the reel (231), and the end of the pulling wire (233) is connected to a material guide plate (232), and an arc groove is provided on the upper surface of the material guide plate (232).

5. The melting furnace for producing RH refractory materials according to claim 4, characterized in that: Both sides of the guide plate (232) are provided with T-shaped slide grooves (234), and the bottom outer wall of the furnace body (1) is symmetrically provided with two groups of guide sliders (235), and the two groups of guide sliders (235) are slidably installed with the tracks of the T-shaped slide grooves (234).

6. The melting furnace for producing RH refractory materials according to claim 4, characterized in that: A base block (237) is fixed to the bottom of the furnace body (1), and a tension spring (236) is connected between the base block (237) and the material guide plate (232).

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