Protective atmosphere electroslag furnace bottom water tank fixing structure

Abstract

The utility model relates to the field of special metallurgy, and discloses a protective atmosphere electroslag furnace bottom water tank fixing structure, which comprises a base, a bottom water tank and a support, at least two brackets are uniformly arranged on the base around the bottom water tank; the driving unit is fixed to the support, a pressing block is fixed to the output end of the driving unit, the output end of the driving unit faces the bottom water tank, and the driving unit drives the pressing block to stretch out to press the lower edge of the bottom water tank or retract to break away from the lower edge of the bottom water tank according to external electric signals. Wherein surface contact can be formed when the pressing block presses the edge of the lower portion of the bottom water tank, and the crystallizer and the bottom water tank are fixed through a connecting piece. According to the utility model, the production cost can be reduced, the process can be simplified, the production efficiency can be improved, and the production safety can be improved.

Description

Technical Field

[0001] The utility model relates to the field of special metallurgy, in particular to a protective atmosphere electroslag furnace bottom water tank fixing structure. Background Art

[0002] Protective atmosphere electroslag furnace is a kind of equipment that introduces protective atmosphere such as inert gas (such as argon) or reducing gas during the smelting process to prevent metal and slag from being oxidized, thereby obtaining high-quality alloy or steel ingots. It mainly consists of the following devices:

[0003] Power supply: Provides the required electrical energy for the electroslag furnace, usually using AC or DC power supply, its capacity and parameters depend on the size of the furnace and smelting requirements.

[0004] Transformer: Converts high voltage electricity into low voltage, high current electricity suitable for use in electric slag furnaces to meet the power requirements of the smelting process.

[0005] Electrode system: includes electrode arm, electrode clamp, electrode guide rod and other components, used to clamp and conduct current to the consumable electrode, convert electrical energy into heat energy and melt the electrode.

[0006] Crystallizer: It is one of the core components of the electroslag furnace. It is usually a water-cooled copper or steel cylindrical structure, and its inner surface shape matches the shape of the ingot to be produced. The function of the crystallizer is to allow the molten metal dripping from the molten pool to quickly cool and crystallize in it to form a dense metal ingot.

[0007] Bottom water tank: It is mainly composed of a water-cooled interlayer box body and a box bottom. A concave cavity is arranged on the bottom of the box, and a plurality of bosses are arranged around the concave cavity which can be tightly attached to the side of the crystallizer. Water supply pipes and water outlet pipes are also arranged at both ends.

[0008] Furnace body and furnace cover: The furnace body is the main structure of the electroslag furnace, used to support and fix other components, and provide a relatively closed smelting space. The furnace cover is used to close the smelting space to prevent heat loss and leakage of protective atmosphere. It is usually equipped with observation holes, operation holes, etc. for easy observation and operation.

[0009] Control system: including electrical control system and automatic control system, which are used to control the operating parameters of the electroslag furnace, such as current, voltage, smelting speed, protective atmosphere flow, etc., to realize automation and precise control of the smelting process.

[0010] The bottom water tank cools the bottom of the crystallizer through a water cooling system, taking away the heat released during the solidification of the molten metal, so that the molten metal can be quickly cooled and crystallized in the crystallizer to form a dense metal ingot, thereby improving the quality of the product. Figure 1As shown in the figure, in the prior art, the mold is connected to the bottom water tank as a whole through bolts, the bottom water tank is fixed to the base through clamping blocks, and the base is fixed to the ground. The following problems exist in the existing fixing scheme of the mold through bolts and the bottom water tank and need to be solved:

[0011] 1. After steelmaking is completed, the bottom water tank is separated from the base, and the mold and the bottom water tank are lifted together. During one smelting cycle, the bottom water tank and the base are disassembled and assembled once each. Removing the bolts is time-consuming and laborious, and the process is cumbersome, which is not conducive to improving production efficiency.

[0012] 2. Lifting the mold and the bottom water tank together requires a large lifting force, resulting in waste of energy consumption.

[0013] 3. The connection between the bottom water tank and the base is tightened by a pressing block, and the bolts for tightening the pressing block need to be manually operated. Manual operation has a high labor intensity, and the tightening torque is not constant, sometimes large and sometimes small, which is not conducive to improving production efficiency. Utility Model Content

[0014] A series of simplified concepts are introduced in the Utility Model Content section. These simplified concepts are simplified from the prior art in this field and will be further described in detail in the Specific Embodiment section. The Utility Model Content section of the present utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0015] The technical problem to be solved by the present utility model is to provide a structure that can automatically complete the fixing and separation of the bottom water tank of a protective atmosphere electroslag furnace.

[0016] To solve the above technical problem, the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace provided by the present utility model includes:

[0017] A base for carrying and fixing the bottom water tank and the bracket;

[0018] At least two brackets evenly arranged around the bottom water tank on the base;

[0019] A driving unit fixed on the bracket, with a pressing block fixed on its output end, the output end facing the bottom water tank, and driving the pressing block to extend to press the lower edge of the bottom water tank or retract to disengage from the lower edge of the bottom water tank according to an external electrical signal;

[0020] Among them, when the pressing block presses the lower edge of the bottom water tank, surface contact can be formed to fix the bottom water tank. The base, the bracket and the pressing block are made of metal materials, and the mold and the bottom water tank are fixed through connecting pieces.

[0021] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, it further includes:

[0022] The bearing parts, the number of which corresponds to that of the pressing blocks, are formed at positions corresponding to the pressing blocks on the lower edge of the bottom water tank, and are in surface contact with the pressing blocks to fix the bottom water tank.

[0023] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, a first guiding surface is formed on the surface where the pressing block contacts the bearing part.

[0024] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, a second guiding surface adapted to the first guiding surface is formed on the surface where the bearing part contacts the pressing block.

[0025] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, the driving unit is a horizontally arranged cylinder.

[0026] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, when there are two driving units, the two driving units are located at both ends of a circular diameter.

[0027] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, when there are three driving units, the three driving units are evenly arranged on a circumference.

[0028] Preferably, further improving the fixing structure of the bottom water tank of the protective atmosphere electroslag furnace, it further includes: a control button, which is electrically connected to the control end of the cylinder.

[0029] The working principle of the present utility model is as follows;

[0030] Before steelmaking, after hoisting the bottom water tank onto the base and positioning it at the center of each support, start the driving unit to extend its output end towards the bottom water tank, and the pressing block presses against the lower edge of the bottom water tank until surface contact is formed. Then, stop the output end of the driving unit from moving. After hoisting the mold and fixing it to the bottom water tank through a connecting piece, start steelmaking.

[0031] After steelmaking is completed, start the driving unit to retract its output end, and the pressing block disengages from the lower edge of the bottom water tank until the pressing block does not interfere with the hoisting of the mold. Then, stop the output end of the driving unit from moving, remove the connecting piece, and hoist the mold away. Thus, a smelting cycle is completed.

[0032] The present utility model can at least achieve the following technical effects:

[0033] 1. Adopting the solution of the present utility model, the mold and the bottom water tank are fixed through a connecting piece. After the connection between the mold and the bottom water tank is removed, they can be hoisted separately. One bottom water tank can be used in cooperation with multiple molds through water replenishment, thereby saving the energy consumption required for hoisting and reducing the production cost.

[0034] 2. Based on the same principle as the above point 1, in multiple smelting cycles, the utility model only needs to hoist the bottom water tank once, which can streamline the process and improve production efficiency.

[0035] 3. The utility model abandons the scheme of bolt - fixing the bottom water tank in the prior art and realizes the fixation of the bottom water tank through a cylinder, saving the time and labor consumed by manual operation for installing and removing the bolts of the bottom water tank, and can improve production efficiency.

[0036] 4. Based on the same principle as the above point 3, the stable fixation of the bottom water tank can be realized through the cylinder, avoiding the safety hazards brought by manual bolt - fixing of the bottom water tank, and can improve production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings of the utility model are intended to show the general characteristics of the methods, structures, and / or materials used in specific exemplary embodiments according to the utility model, and supplement the description in the specification. However, the drawings of the utility model are schematic diagrams not drawn to scale, and thus may not be able to accurately reflect the precise structure or performance characteristics of any given embodiment. The drawings of the utility model should not be construed as limiting the scope of the values or properties covered by the exemplary embodiments according to the utility model. The following further elaborates on the utility model in conjunction with the drawings and specific embodiments.

[0038] Figure 1 is a schematic diagram of the overall structure of the prior art.

[0039] Figure 2 is a schematic diagram of the fixing structure of the prior art.

[0040] Figure 3 is a schematic diagram of the overall structure of the utility model.

[0041] Figure 4 is a schematic diagram of the fixing structure of the first embodiment of the utility model.

[0042] Figure 5 is a schematic diagram of the fixing structure of the second embodiment of the utility model.

[0043] Description of the reference numerals in the drawings:

[0044] Mold 1;

[0045] Bottom water tank 2;

[0046] Fixing structure of the bottom water tank of the atmosphere electroslag furnace 3;

[0047] Base 4;

[0048] Pressure block 5;

[0049] Connecting block 6;

[0050] Bolt 7;

[0051] Bracket 8;

[0052] Drive unit 9;

[0053] Carrying part 10;

[0054] First guiding surface 11;

[0055] Second guiding surface 12. Detailed implementation manners

[0056] The following uses specific embodiments to illustrate the implementation manners of the present utility model. Those skilled in the art can fully understand other advantages and technical effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Each detail in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without departing from the overall design concept of the utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. The following exemplary embodiments of the present utility model can be implemented in many different forms and should not be construed as being limited only to the specific embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present utility model is thorough and complete, and the technical solutions of these exemplary specific embodiments can be fully conveyed to those skilled in the art. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, the element can be directly connected or coupled to the other element, or there can be an intermediate element. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there is no intermediate element. In all the drawings, the same reference numerals always represent the same elements.

[0057] First embodiment;

[0058] Refer to Figure 3 Combine with Figure 4 As shown, the present utility model provides a fixing structure for the bottom water tank of a protective atmosphere electroslag furnace, including:

[0059] A base 4, which is used to carry and fix the bottom water tank 2 and the bracket 8;

[0060] At least two brackets 8, which are evenly arranged around the bottom water tank 2 on the base 4;

[0061] A drive unit 9, which is fixed on the bracket 8, a pressure block 5 is fixed on its output end, its output end faces the bottom water tank 2, and it drives the pressure block 5 to extend to press against the lower edge of the bottom water tank 2 or retract to disengage from the lower edge of the bottom water tank 2 according to an external electrical signal;

[0062] Among them, when the pressing block 5 presses against the lower edge of the bottom water tank 2, a surface contact can be formed, thereby fixing the bottom water tank 2. The base 4, the support 8, and the pressing block 5 are made of metal materials. The mold 1 and the bottom water tank 2 are fixedly connected by bolts. For example, the mold 1 and the bottom water tank 2 are fixedly connected by bolts.

[0063] In addition, it should also be understood that although the terms "first", "second", etc. can be used here to describe different elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, without departing from the teachings of the exemplary embodiments of the present invention, the first element, component, region, layer, or part discussed below can also be referred to as the second element, component, region, layer, or part.

[0064] Second embodiment;

[0065] Reference Figure 3 Combined Figure 5 As shown, the present invention provides a fixed structure for the bottom water tank of a protective atmosphere electroslag furnace, including:

[0066] A base 4, which is used to carry and fix the bottom water tank 2 and the support 8;

[0067] At least two supports 8, which are evenly arranged around the bottom water tank 2 on the base 4;

[0068] A driving unit 9, which is fixed on the support 8, with a pressing block 5 fixed on its output end, its output end facing the bottom water tank 2, and it drives the pressing block 5 to extend and press against the bearing part 10 or retract and disengage from the bearing part 10 according to an external electrical signal;

[0069] A bearing part 10, the number of which corresponds to that of the pressing block 5, is formed at a position corresponding to the pressing block 5 on the lower edge of the bottom water tank 2, and forms a surface contact with the pressing block 5 to fix the bottom water tank 2;

[0070] A first guiding surface 11 is formed on the surface of the pressing block 5 in contact with the bearing part 10;

[0071] A second guiding surface 12 adapted to the first guiding surface is formed on the surface of the bearing part 10 in contact with the pressing block 5;

[0072] At least two supports 8, which are evenly arranged around the bottom water tank 2 on the base 4;

[0073] The driving unit 9 adopts a horizontally arranged air cylinder, which is fixed on the support 8, with a pressing block 5 fixed on its output end, its output end facing the bottom water tank 2, and it drives the pressing block 5 to extend and press against the lower edge of the bottom water tank 2 or retract and disengage from the lower edge of the bottom water tank 2 according to an external electrical signal;

[0074] A control button, electrically connected to the cylinder control end, for controlling the extension or retraction of the cylinder;

[0075] Wherein, the base 4, the bracket 8 and the pressing block 5 are made of metal materials, and the mold 1 and the bottom water tank 2 are fixedly connected by bolts.

[0076] Optionally, when there are two cylinders, the two cylinders are located at both ends of a circular diameter.

[0077] Optionally, when there are three cylinders, the three cylinders are evenly arranged on a circumference.

[0078] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not in an ideal or overly formal sense, unless expressly defined herein.

[0079] The above has described the present utility model in detail through specific embodiments and examples, but these do not constitute a limitation to the present utility model. Without departing from the principle of the present utility model, those skilled in the art can also make many modifications and improvements, which should also be regarded as the protection scope of the present utility model.

Claims

1. A fixed structure for the bottom water tank of a protective atmosphere electroslag furnace, characterized in that, Including: A base (4) for carrying and fixing a bottom water tank (2) and a bracket (8); At least two brackets (8) evenly arranged on the base (4) around the bottom water tank (2); A driving unit (9) fixed on the bracket (8), with a pressing block (5) fixed on its output end, the output end facing the bottom water tank (2), and driving the pressing block (5) to extend and press against the lower edge of the bottom water tank (2) or retract away from the lower edge of the bottom water tank (2) according to an external electrical signal; Wherein, when the pressing block (5) presses against the lower edge of the bottom water tank (2), a surface contact can be formed, and the mold (1) and the bottom water tank (2) are fixed through a connecting piece.

2. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 1, characterized in that , further including: A bearing part (10) corresponding to the pressing block (5) in number, formed at a position corresponding to the lower edge of the bottom water tank (2) opposite to the pressing block (5), and forming a surface contact with the pressing block (5) to fix the bottom water tank (2).

3. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 2, characterized in that: A first guiding surface is formed on the surface of the pressing block (5) in contact with the bearing part (10).

4. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 3, characterized in that: A second guiding surface adapted to the first guiding surface is formed on the surface of the bearing part (10) in contact with the pressing block (5).

5. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 1, characterized in that: The driving unit (9) is a horizontally arranged cylinder.

6. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 1, characterized in that: When there are two driving units, the two driving units are located at both ends of a circular diameter.

7. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 1, characterized in that: When there are three driving units, the three driving units are evenly arranged on a circumference.

8. The fixed structure of the bottom water tank of the protective atmosphere electroslag furnace according to claim 5, characterized in that, Further including: A control button electrically connected to the control end of the cylinder.

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