Alloy baking equipment for smelting molten steel

Abstract

The utility model belongs to the technical field of metallurgy, and provides alloy baking equipment for smelting molten steel, which comprises a base, a pair of supports, a cross and a baking box, and the supports are oppositely arranged on two sides of the upper surface of the base; the cross is located between the two supports, the cross is vertically and rotatably arranged on one support, loading and unloading hoppers are rotatably arranged at the four ends of the cross, and along with rotation of the cross, loading ports of the loading and unloading hoppers face upwards all the time, and unloading ports of the loading and unloading hoppers face downwards all the time; a discharging plate capable of being opened and closed is arranged at the bottom of the loading and unloading hopper; the baking box is located between the two supports. According to the alloy baking device, alloy in a rolling state can be baked and rapidly heated, meanwhile, it can be guaranteed that the alloy is evenly baked, then the baking quality of the alloy is guaranteed, in addition, regular feeding and discharging are achieved through a unique feeding and discharging mode, the baking efficiency can be greatly improved, and the using effect is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy, and in particular relates to alloy baking equipment used for smelting molten steel. Background Art

[0002] Adding alloy charge is a necessary process in the steelmaking process. In order to reduce steelmaking energy consumption and improve steel quality, an alloy baking furnace is needed to dry and dehydrate the ferroalloy.

[0003] At present, the existing alloy baking furnaces are mostly used for static baking of alloys in actual use. In this environment, the inner and outer layers of the alloys are heated unevenly, which can easily reduce the baking quality of the alloys. In addition, the heating process of the alloy in the inner layer is relatively slow, and the baking efficiency is low.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The utility model aims to overcome the problems in the prior art that alloy baking equipment cannot guarantee baking quality and has low baking efficiency, and to provide an alloy baking equipment for smelting molten steel.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An alloy baking device for smelting molten steel, comprising: a base, a pair of brackets, a cross and a baking oven, wherein the pair of brackets are arranged on both sides of the upper surface of the base; the cross is located between the two brackets, and the cross is vertically rotatably arranged on one of the brackets, and the four ends of the cross are rotatably provided with loading and unloading hoppers, and with the rotation of the cross, the loading port of the loading and unloading hopper is always facing upward and the unloading port is always facing downward; the bottom of the loading and unloading hopper is provided with an openable and closable unloading plate; the baking oven is located between the two brackets, and the baking oven is fixed on the other bracket, and the top of the baking oven The top and bottom of the baking oven are both open for feeding and discharging materials, the top opening of the baking oven corresponds to the discharging port of the loading and unloading hopper rotated to the top, and the bottom opening of the baking oven corresponds to the loading port of the loading and unloading hopper rotated to the bottom; multiple layers of guide mesh plates are evenly distributed from top to bottom in the baking oven, one end of the guide mesh plate is fixed to an inner wall of one side of the baking oven, and the other end is inclined downward and spaced from the inner wall of the other side of the baking oven to form a material drop channel, so that the material rolls along an S-shaped trajectory in the baking oven; a flame spraying plate is provided below each of the guide mesh plates, and the upper plate of the flame spraying plate sprays a fire stream toward the guide mesh plate.

[0008] In the alloy baking equipment for smelting molten steel as described above, preferably, the support is a tripod

[0009] A motor is installed on the top of the bracket where the cross is located, and the motor is transmission-connected with the middle part of the cross.

[0010] Preferably, a cylinder is protruding from the center of the top of one side of the loading and unloading hopper facing the cross;

[0011] A sleeve is transversely fixed to the end of the cross, and the sleeve is sleeved on the outside of the corresponding cylinder.

[0012] Preferably, a limiting plate is provided at the end of the cylinder.

[0013] Preferably, the discharge plate is composed of two arc-shaped plates, and ends of the two arc-shaped plates that are away from each other are respectively hinged to two sides of the bottom of the loading and unloading hopper.

[0014] Preferably, a cylinder is vertically provided on the side of the loading and unloading hopper opposite to the cylinder;

[0015] The output rod of the oil cylinder extends downward, and a pair of connecting rods are hinged at the lower end of the output rod of the oil cylinder.

[0016] Preferably, a convex column is provided on the flat side surface of the arc-shaped plate, and the convex column and the oil cylinder are on the same side;

[0017] The convex column is adjacent to the junction of the two arc-shaped plates.

[0018] Preferably, the lower ends of the two connecting rods are respectively inclined toward the protruding columns on the two arc-shaped plates, and the lower ends of the connecting rods are sleeved on the outside of the corresponding protruding columns.

[0019] Preferably, the flame spraying disc is hollow to connect to the gas;

[0020] The upper disk surface of the flame spraying disk is provided with a flame spraying nozzle.

[0021] Beneficial effects: The utility model can realize baking of alloy in a rolling state and make it heat quickly, and at the same time can ensure uniform baking of the alloy, thereby ensuring the baking quality of the alloy. In addition, the regular feeding and discharging of materials through a unique feeding and discharging method can greatly improve the baking efficiency and enhance the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0023] Figure 1 It is an overall schematic diagram of the utility model;

[0024] Figure 2It is an overall schematic diagram of the loading and unloading hopper structure of the utility model;

[0025] Figure 3 for Figure 1 The enlarged schematic diagram at A in the middle;

[0026] Figure 4 for Figure 1 Schematic diagram from another perspective;

[0027] Figure 5 It is a front cross-sectional view of the baking oven structure of the present utility model.

[0028] In the figure: 1. base; 2. bracket; 3. cross; 4. loading and unloading hopper; 5. baking box; 6. guide mesh plate; 7. flame-spraying plate; 8. motor; 9. cylinder; 10. sleeve; 11. limit plate; 12. arc plate; 13. cylinder; 14. connecting rod; 15. convex column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0030] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0032] Embodiment: This embodiment aims to provide an alloy baking equipment for smelting molten steel, and its main function is to ensure the baking quality of the alloy and greatly improve the baking efficiency.

[0033] Reference Figure 1 , Figure 2 and Figure 4, including: a base 1, a pair of brackets 2 and a baking oven 5, the bracket 2 is a tripod, to ensure that the bracket 2 can be stably supported, the two parallel brackets 2 are respectively fixed to the front and rear sides of the base 1, and a motor 8 is laterally fixed to the outer side of the top of the bracket 2 on the rear side; the cross 3 is located between the two brackets 2, and the cross 3 is vertically rotatably installed on the rear bracket 2, and the motor 8 can drive the cross 3 to rotate by connecting a transmission shaft between the motor 8 and the middle part of the cross 3, and the transmission shaft is inside the rear bracket 2 and is not shown; the four ends of the cross 3 are rotatably installed with loading and unloading hoppers 4, specifically, the loading and unloading hopper 4 is convexly provided with a cylinder 9 on the side facing the cross 3, that is, the center of the top of the rear side, The four ends of the cross 3 are all laterally fixed with sleeves 10, and the sleeves 10 are sleeved on the outside of the corresponding cylinder 9. In addition, a bearing can be arranged in the sleeve 10, and then the cylinder 9 is sleeved in the bearing, which can effectively reduce the friction resistance between the cylinder 9 and the sleeve 10. Therefore, as the cross 3 rotates, the loading port of the loading and unloading hopper 4 can always face upward and the discharging port can always face downward. A limiting plate 11 is provided at the end of the cylinder 9 to prevent the cylinder 9 from slipping off the sleeve 10. By arranging the cylinder 9 at the top center of the loading and unloading hopper 4, its center can be moved downward. Regardless of whether there is alloy material in the loading and unloading hopper 4, it is not easy to tip over to the left or right, thereby enhancing the stability of the loading and unloading hopper 4.

[0034] Reference Figure 1 , Figure 3 and Figure 4 The bottom of the loading and unloading hopper 4 is provided with an openable unloading plate, which is composed of two arc-shaped plates 12. The ends of the two arc-shaped plates 12 that are far away from each other are respectively hinged to the left and right sides of the bottom of the loading and unloading hopper 4. At the same time, the bottom of the loading and unloading hopper 4 is also made to be arc-shaped through the two arc-shaped plates 12. The advantage is that it can prevent the loading and unloading hopper 4 from accidentally touching the baking oven 5 when it rotates driven by the cross 3; a cylinder 13 is vertically fixed on the side of the loading and unloading hopper 4 opposite to the cylinder 9, that is, the front side, and the output rod of the cylinder 13 extends downward, and two connecting rods 14 are hinged at the lower end of the output rod; a convex column 15 is provided on the flat side, that is, the front side of the arc-shaped plate 12, and the convex column 15 is on the same side as the cylinder 13 so as to be connected to the connecting rod 14. The convex column 1 5 is located near the junction of the two arc-shaped plates 12, and the lower ends of the two connecting rods 14 are respectively inclined toward the protruding columns 15 on the two arc-shaped plates 12, and the lower ends of the connecting rods 14 are sleeved on the outside of the corresponding protruding columns 15. Based on this, when the output rod of the oil cylinder 13 extends downward, the two arc-shaped plates 12 are pushed open by the materials in the loading and unloading hopper 4. As the output rod of the oil cylinder 13 extends longer, the opening angle of the two arc-shaped plates 12 becomes larger. Therefore, the discharge amount of the loading and unloading hopper 4 can also be reasonably controlled by the oil cylinder 13. Correspondingly, if you want to close the unloading plate, you only need to retract the output rod of the oil cylinder 13. During this period, the output rod will pull up the two connecting rods 14 at the same time, and the two connecting rods 14 will pull up the corresponding arc-shaped plates 12 through the sleeved protruding columns 15.

[0035] Reference Figure 1 and Figure 5 The baking oven 5 is also located between the two brackets 2. At the same time, the baking oven 5 is located in the center of the four loading and unloading hoppers 4. The baking oven 5 is fixed to the inner side of the front bracket 2. The top and bottom of the baking oven 5 are opened for feeding and discharging. When the loading and unloading hopper 4 is driven by the cross 3 to rotate to the top of the baking oven 5, the top opening of the baking oven 5 corresponds to the discharging port of the loading and unloading hopper 4. When the loading and unloading hopper 4 is driven by the cross 3 to rotate to the bottom of the baking oven 5, the bottom opening of the baking oven 5 corresponds to the loading port of the loading and unloading hopper 4. In other words, the unloading station is located directly above the baking oven 5, and the loading station is located directly below the baking oven 5.

[0036] Reference Figure 1 and Figure 5 , multiple layers of guide mesh plates 6 are evenly distributed from top to bottom in the baking oven 5, one end of the guide mesh plate 6 is fixed to an inner wall of one side of the baking oven 5, and the other end is tilted downward and spaced from the inner wall of the other side of the baking oven 5 to form a channel for the alloy to fall, and under the guidance of the guide mesh plate 6, the alloy rolls along an S-shaped trajectory in the baking oven 5, and the purpose of this setting is to increase the rolling time of the alloy in the baking oven 5 so that it can be heated evenly; wherein, a flame spraying plate 7 is provided under each guide mesh plate 6, and the flame spraying plate 7 is fixed in the same way as the corresponding guide mesh plate 6, and the flame spraying plate 7 is hollow so as to connect to the gas, and flame spraying nozzles are distributed on the upper disk surface of the flame spraying plate 7, so that the upper disk surface of the flame spraying plate 7 sprays a hot flow toward the guide mesh plate 6, and the direct flame spraying method can greatly accelerate the heating speed of the alloy, and at the same time, the alloy can be heated in a rolling state and avoid concentrated heat, with excellent effect.

[0037] In actual application, first ensure that the cross 3 is in a straightened state, that is, it presents a right cross shape, and the cross 3 is assumed to rotate clockwise, and the alloy to be baked is sent into the leftmost loading and unloading hopper 4 through the feeding equipment. At the same time, an open transfer box can be set below the leftmost loading and unloading hopper 4, and then the motor 8 is started to rotate the cross 3, and then the loading and unloading hopper 4 containing the alloy is rotated to the top of the baking oven 5, and the baking oven 5 can be preheated before that. Next, open the unloading plate of the loading and unloading hopper 4 above the baking oven 5, and reasonably control the falling amount of the alloy. During unloading, the leftmost empty hopper needs to be filled with the alloy to be baked in advance, so as to make full use of the working gap and save time. The alloy that falls into the baking oven 5 rolls downward along an S-shaped path. During the downward rolling of the alloy, the fire flow sprayed by the flame-spraying disk 7 allows the alloy in the rolling state to be quickly and evenly heated. The baked alloy falls into the loading and unloading hopper 4 at the bottom of the baking oven 5. The cross 3 continues to rotate to transfer the loading and unloading hopper 4 at the bottom of the baking oven 5 to the leftmost side. This process is a material lifting process, so the baked alloy can be lifted to the same height as the receiving port of the transfer box. At this time, the unloading working gap of the loading and unloading hopper 4 just above the baking oven 5 can be used to unload and load the loading and unloading hopper 4 on the leftmost side, and then the above steps can be repeated. During this time, the loading and unloading hopper 4 on the rightmost side is always empty.

[0038] The baking equipment provided in this embodiment can bake the alloy in a rolling state and heat it quickly, while ensuring that the alloy is evenly baked, thereby ensuring the baking quality of the alloy. In addition, the baking efficiency can be greatly improved through regular feeding and discharging through a unique feeding and discharging method and reasonable use of working intervals and multi-station operations, with excellent use effect.

[0039] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. An alloy baking equipment for smelting molten steel, characterized in that: include: Base; A pair of brackets are arranged oppositely on two sides of the upper surface of the base; A cross is located between the two brackets, and the cross is vertically rotatably arranged on one of the brackets, and four ends of the cross are rotatably provided with loading and unloading hoppers, and as the cross rotates, the loading port of the loading and unloading hopper always faces upwards, and the unloading port always faces downwards; The bottom of the loading and unloading hopper is provided with an openable and closable unloading plate; A baking oven is located between the two brackets, and the baking oven is fixed on the other bracket. The top and bottom of the baking oven are both open for feeding and discharging materials. The top opening of the baking oven corresponds to the discharge port of the loading and unloading hopper rotated to the top, and the bottom opening of the baking oven corresponds to the loading port of the loading and unloading hopper rotated to the bottom; Multiple layers of guide mesh plates are evenly distributed from top to bottom in the baking oven, one end of the guide mesh plate is fixed to one inner wall of the baking oven, and the other end is tilted downward and spaced from the other inner wall of the baking oven to form a material drop channel, so that the material rolls along an S-shaped track in the baking oven; A fire spraying disc is provided below each of the guide mesh plates, and the upper disc surface of the fire spraying disc sprays a fire stream toward the guide mesh plates.

2. The alloy baking equipment for smelting molten steel according to claim 1, characterized in that: The support is a tripod A motor is installed on the top of the bracket where the cross is located, and the motor is transmission-connected with the middle part of the cross.

3. The alloy baking equipment for smelting molten steel according to claim 1, characterized in that: A cylinder is protruding from the center of the top of one side of the loading and unloading hopper facing the cross; A sleeve is transversely fixed to the end of the cross, and the sleeve is sleeved on the outside of the corresponding cylinder.

4. The alloy baking equipment for smelting molten steel according to claim 3, characterized in that: A limiting plate is provided at the end of the cylinder.

5. The alloy baking equipment for smelting molten steel according to claim 3, characterized in that: The unloading plate is composed of two arc-shaped plates, and ends of the two arc-shaped plates that are away from each other are respectively hinged to the two sides of the bottom of the loading and unloading hopper.

6. The alloy baking equipment for smelting molten steel according to claim 5, characterized in that: A cylinder is vertically provided on the side of the loading and unloading hopper opposite to the cylinder; The output rod of the oil cylinder extends downward, and a pair of connecting rods are hinged at the lower end of the output rod of the oil cylinder.

7. The alloy baking equipment for smelting molten steel according to claim 6, characterized in that: The flat side surface of the arc-shaped plate is provided with a convex column, and the convex column and the oil cylinder are on the same side; The convex column is adjacent to the junction of the two arc-shaped plates.

8. The alloy baking equipment for smelting molten steel according to claim 7, characterized in that: The lower ends of the two connecting rods are respectively inclined toward the convex columns on the two arc-shaped plates, and the lower ends of the connecting rods are sleeved on the outside of the corresponding convex columns.

9. The alloy baking equipment for smelting molten steel according to claim 1, characterized in that: The flame spraying disc is hollow to connect to the gas; The upper disk surface of the flame spraying disk is provided with a flame spraying nozzle.

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