An experimental furnace

By designing an inert gas refining and heating structure for the experimental furnace and combining it with a mobile device, the problems of large weight, large size, and inconvenient movement of the casting furnace were solved, enabling efficient, low-cost, and high-purity production of small batches of new alloy ingots.

CN117490417BActive Publication Date: 2026-03-31FOSHAN SANSHUIFENGLV ALUMINIUMINDUSTRY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-14
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing melting and casting furnaces are heavy, large in size, inconvenient to move, and occupy a large area, which cannot meet the needs of small-batch new alloy ingot casting tests. Furthermore, they have high production costs, and improper feeding can easily lead to poor ingot quality.

Method used

An experimental furnace was designed, including a furnace body, silica cotton interlayer, permeable bricks, pipes and heating elements. It reduces heat loss and improves purification efficiency through inert gas refining and heating structure. It is also equipped with a moving device and a supporting device to achieve convenient movement and efficient production.

Benefits of technology

This technology enables efficient production of small batches of new alloy ingots, reduces heat loss and aluminum oxide inclusions, lowers production costs, and improves the purity and production efficiency of the ingots.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117490417B_ABST
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Abstract

The application provides an experimental furnace, which comprises a furnace body, silicate cotton, a gas-permeable brick, a pipeline and a heating element; the furnace body is internally provided with a cavity; the furnace body is provided with a feeding opening; the upper portion of the furnace body is provided with an air inlet; the lower portion of the furnace body is provided with a liquid outlet; one end of the feeding opening, the liquid outlet and the air inlet is communicated with the cavity; the furnace body is provided with a sandwich layer; the silicate cotton is filled in the sandwich layer; the gas-permeable brick is arranged at the bottom of the cavity; one end of the pipeline is communicated with the other end of the air inlet; the other end of the pipeline is inserted into the gas-permeable brick; the pipeline is arranged around the silicate cotton; and the heating element is arranged in the cavity. The application has the advantages of high energy utilization rate, small occupied area, convenient movement and reduced experimental cost.
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Description

Technical Field

[0001] This invention relates to the field of melting and casting furnace technology, and more specifically, to an experimental furnace. Background Technology

[0002] As is well known, industrial materials require the periodic production of new alloy test round ingots. These ingots, made with different alloy compositions, are then extruded into profiles using extrusion presses to evaluate product performance. The existing melting furnace has a capacity of 25 tons, producing only one batch of ingots for testing. This method is costly, and the 25 tons of test round ingots produced cannot be used all at once, resulting in significant waste. However, if the feed rate is too low, insufficient molten aluminum in the furnace leads to inadequate stirring and refining, affecting the quality of the cast round ingots.

[0003] Therefore, existing melting and casting furnaces are heavy, large in size, inconvenient to move, and occupy a large area, which cannot meet the needs of users. Summary of the Invention

[0004] Therefore, in order to solve the problems of existing melting and casting furnaces being heavy, large in size, inconvenient to move, and occupying a large area, the present invention provides an experimental furnace, the specific technical solution of which is as follows:

[0005] An experimental furnace, comprising:

[0006] The furnace body has a cavity inside, a feeding port, an air inlet at the top, and a liquid outlet at the bottom. One port of the feeding port, the liquid outlet, and the air inlet are all connected to the cavity. The furnace body has a double layer.

[0007] Silicate cotton, wherein the silicate cotton is filled within the interlayer;

[0008] A breathable brick, wherein the breathable brick is installed at the bottom of the cavity;

[0009] The pipe has one end connected to the other end of the air inlet, the other end of the pipe is inserted into the breathable brick, and the pipe is wound around the silica cotton.

[0010] A heating element is installed inside the cavity.

[0011] The aforementioned experimental furnace is suitable for small-batch trial production of new alloy ingots. It consists of a furnace body with an air inlet. One port of the inlet connects to a cavity within the furnace body to introduce inert gas, maintaining an inert gas environment above the molten aluminum and reducing aluminum oxidation inclusions. The other port of the inlet connects to a pipe, allowing inert gas from the pipe to enter the cavity through permeable bricks. The furnace body is also equipped with a sandwich layer containing silicate cotton, which provides excellent insulation. This design reduces heat loss within the cavity. By incorporating pipes wound inside silica cotton, the furnace heat heats the inert gas before it enters the permeable bricks, ensuring the inert gas temperature is as close as possible to the molten aluminum temperature. This prevents cold inert gas from directly entering the molten aluminum and causing thermal expansion, maintaining a fine, uniform dispersion. The contact area between the inert gas and the molten aluminum is maximized, enhancing the efficiency of purification and inclusion adsorption. Heating elements are also included to heat the ingots within the cavity.

[0012] Furthermore, the cross-sectional area of ​​the furnace body decreases sequentially from top to bottom along the height direction of the furnace body.

[0013] Furthermore, the interlayer covers the outer wall of the cavity.

[0014] Furthermore, the liquid outlet is equipped with a filter block for filtering liquid impurities.

[0015] Furthermore, there are multiple breathable bricks, each connected to a pipe, and the number of ports of the pipe located inside the breathable bricks is the same as the number of breathable bricks and corresponds one-to-one.

[0016] Furthermore, the heating element is a silicon carbide rod.

[0017] Furthermore, the silicon carbide rods are multiple and arranged side by side, with the multiple silicon carbide rods laid horizontally.

[0018] Furthermore, the heating element is located above the breathable brick, and the heating element and the breathable brick are spaced apart.

[0019] Furthermore, the experimental furnace also includes a moving device and a supporting device, wherein the supporting device is mounted on the moving device and is used to support the furnace body.

[0020] Furthermore, the mobile device includes a chassis, a power unit, and a control system communicatively connected to the power unit; the power unit and the control system are mounted on the chassis, and the furnace body is mounted on the chassis. Attached Figure Description

[0021] The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0022] Figure 1 This is one of the partial cross-sectional structural schematic diagrams of the experimental furnace according to an embodiment of the present invention;

[0023] Figure 2 This is a second partial cross-sectional view of the experimental furnace according to an embodiment of the present invention;

[0024] Figure 3 This is the third partial cross-sectional structural schematic diagram of the experimental furnace according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the moving device and supporting device of the experimental furnace according to an embodiment of the present invention;

[0026] Figure 5 One of the structural schematic diagrams of the moving device of the experimental furnace according to an embodiment of the present invention;

[0027] Figure 6 A second schematic diagram of the structure of the moving device of the experimental furnace according to an embodiment of the present invention;

[0028] Figure 7 One of the structural schematic diagrams of the support device for the experimental furnace according to an embodiment of the present invention;

[0029] Figure 8 A second schematic diagram of the structure of the support device for the experimental furnace according to an embodiment of the present invention;

[0030] Figure 9 for Figure 8 A schematic diagram of the partial structure of A in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Silicate cotton; 2. Breathable brick; 3. Pipe; 4. Heating element; 5. Cavity; 6. Feeding port; 7. Air inlet; 8. Liquid outlet; 9. Furnace body; 10. Outer shell; 11. Moving device; 111. Chassis; 112. Power unit; 113. Control system; 12. Supporting device; 121. Guide frame; 122. Mounting frame; 123. Lifting device; 1231. Slide rail; 1232. Slider; 124. Drive device; 125. Supporting structure; 126. Connecting frame; 1261. Main body; 1262. Horizontal part; 127. Support block; 1271. Support part; 1272. Guide part; 128. Pushing device; 13. Filter block. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of the invention.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] In this invention, the terms "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0037] like Figures 1-3 As shown, an experimental furnace according to one embodiment of the present invention includes a furnace body, silicate cotton 1, a breathable brick 2, a pipe 3, and a heating element 4; the furnace body has a cavity 5, a feeding port 6, an air inlet 7 at the top, and a liquid outlet 8 at the bottom; one end of the feeding port 6, the liquid outlet 8, and the air inlet 7 are all connected to the cavity 5; the furnace body has a sandwich layer; the silicate cotton 1 is filled in the sandwich layer; the breathable brick 2 is installed at the bottom of the cavity 5; one end of the pipe 3 is connected to the other end of the air inlet 7, the other end of the pipe 3 is inserted into the breathable brick 2, and the pipe 3 is wound around the silicate cotton 1; the heating element 4 is installed in the cavity 5.

[0038] The aforementioned experimental furnace is suitable for small-batch trial production of new alloy ingots. It is equipped with a furnace body containing an air inlet 7. One port of the air inlet 7 is connected to a cavity 5 within the furnace body for introducing inert gas. This inert gas creates an inert gas environment above the molten aluminum, reducing aluminum oxidation and inclusions. The other port of the air inlet 7 is connected to a pipe 3, allowing inert gas from the pipe 3 to enter the cavity 5 through a permeable brick 2. The furnace body is also fitted with a sandwich layer containing silicate cotton 1, which provides excellent insulation. This reduces heat loss within the cavity 5. By incorporating a pipe 3 that winds around the silica cotton 1, the heat from the furnace body heats the inert gas before it enters the permeable brick 2, ensuring the inert gas temperature is as close as possible to the molten aluminum temperature. This prevents cold inert gas from directly entering the molten aluminum and causing thermal expansion, maintaining a fine, uniformly dispersed state. The contact area between the inert gas and the molten aluminum is maximized, enhancing the efficiency of purification and adsorption of inclusions. A heating element 4 is also provided to heat the ingot within the cavity 5.

[0039] In particular, the way the pipe 3 is arranged around the furnace body can maximize the preheating of the inert gas and reduce the thermal expansion of bubbles. Alternatively, the inert gas can be preheated using the heat within the cavity 5 without consuming additional energy.

[0040] Preferably, the inert gas is argon and / or nitrogen. By introducing preheated inert gas into the molten aluminum within cavity 5, inert gas is used for refining, degassing, and slag removal, reducing the erosion of the inner wall of cavity 5 by the refining agent and minimizing additional aluminum contamination from the refining agent.

[0041] In one embodiment, casters are installed at the bottom of the furnace body. This facilitates the movement of the furnace body.

[0042] In one embodiment, the furnace body includes a furnace body 9 and an outer shell 10, the cavity 5 is located inside the furnace body 9, the outer shell 10 and the furnace body 9 are detachably connected, and the interlayer is located between the outer shell 10 and the furnace body 9.

[0043] Preferably, the outer casing 10 is mounted to the furnace body 9 by screws or other fasteners. This facilitates disassembly.

[0044] Preferably, the outer casing 10 is made of steel. This reduces the weight of the furnace body and makes it easier to move.

[0045] Preferably, the silica cotton 1 is fixed to the furnace body by screws or other fasteners to prevent it from falling off. If the silica cotton 1 needs to be replaced, it can be quickly replaced simply by removing the outer casing 10.

[0046] In one embodiment, the cross-sectional area of ​​the furnace body decreases from top to bottom along the height direction of the furnace body. That is, the cross-sectional area of ​​the furnace body is smaller at the bottom and larger at the top, and the rate of change of the volume of cavity 5 is equal to the rate of change of the volume of inert gas, so as to avoid and reduce the collision and aggregation of bubbles themselves, and increase the refining and degassing effect.

[0047] In one embodiment, the interlayer covers the outer wall of the cavity 5.

[0048] In one embodiment, the outlet 8 is provided with a filter block 13 for filtering liquid impurities. Thus, during casting, the molten aluminum flows through the filter block 13, removing inclusions from the molten aluminum and improving the purity of the aluminum melt.

[0049] In one embodiment, there are multiple permeable bricks 2, each connected to a pipe 3. The number of ports of the pipe 3 located within the permeable bricks 2 corresponds one-to-one with the number of permeable bricks 2. Thus, before the inert gas enters the permeable bricks 2 through the pipe 3, the heat in the furnace body heats the inert gas in the pipe 3, bringing it as close as possible to the temperature of the molten aluminum. This prevents cold inert gas from directly entering the molten aluminum and causing thermal expansion, maintaining a fine, uniformly dispersed state, maximizing the contact area between the inert gas and the molten aluminum, and enhancing the efficiency of purification and adsorption of inclusions.

[0050] In one embodiment, the heating element 4 is a silicon carbide rod. This enables precise temperature control.

[0051] In one embodiment, the silicon carbide rods are multiple and arranged side by side, with the multiple silicon carbide rods laid horizontally. This ensures a large heat radiation surface and uniform heating during the heating process.

[0052] In one embodiment, the heating element 4 is located above the breathable brick 2, and the heating element 4 and the breathable brick 2 are spaced apart.

[0053] like Figures 4-9 As shown, in one embodiment, the experimental furnace further includes a moving device 11 and a supporting device 12. The supporting device 12 is mounted on the moving device 11 and is used to support the furnace body. Thus, by providing the moving device 11 and the supporting device 12, the furnace body is supported by the supporting device 12 and moved from the feeding position to the casting well by the moving device 11. Specifically, ingots and other raw and auxiliary materials are loaded into the furnace body at the feeding position, melted, and their composition adjusted. After the aluminum liquid composition is adjusted, the furnace body is supported by the supporting device 12 and moved by the moving device 11 to the casting well to await casting. After casting is completed, the moving device 11 and the supporting device 12 work together to move the furnace body back to the feeding position.

[0054] Clearly, the cooperation between the moving device 11 and the supporting device 12 reduces manual labor and improves work efficiency.

[0055] Specifically, the mobile device 11 includes a chassis 111, a power unit 112, and a control system 113 that is communicatively connected to the power unit 112; the power unit 112 and the control system 113 are mounted on the chassis 111, and the furnace body is mounted on the chassis 111.

[0056] Specifically, the control system 113 includes a logic processing module and a camera, which are connected. A QR code containing location information is provided on the outer surface of the furnace body. The mobile device 11 moves to the side of the QR code. The camera captures the QR code and transmits the captured image to the logic processing module. The logic processing module calculates the location information of the power device 112 based on the captured image and an affine transformation matrix, and plans the motion trajectory of the power device 112 based on the location information. The QR code includes the location information of the furnace body and the location information of the casting well. The step of planning the motion trajectory of the power device 112 based on the location information is described.

[0057] Specifically, the logic processing module includes a code reading system and a visual trajectory planning module. The code reading system is used to read the QR code information in the captured image and calculate the position information of the power device 112. The visual trajectory planning module is used to plan the motion trajectory of the power device 112 in three-dimensional space based on the position information calculated by the code reading system.

[0058] Specifically, both the logic processing module and the camera are mounted on the chassis 111.

[0059] Thus, by setting up a logic processing module and a camera

[0060] In one embodiment, the supporting device 12 includes a guide frame 121, a mounting frame 122, a supporting structure 125, a lifting device 123 for controlling the lifting movement of the supporting structure 125, and a driving device 124 for controlling the reciprocating movement of the mounting frame 122 along the guiding direction of the guide frame 121; the guide frame 121 is arranged horizontally and mounted on the chassis 111; one end of the guide frame 121 extends to the outside of the chassis 111; the mounting frame 122 is mounted on the guide frame 121, the driving device 124 is mounted on the mounting frame 122, and the lifting device 123 is mounted on the mounting frame 122.

[0061] Specifically, the lifting device 123 includes a slide rail 1231, a slider 1232, a transmission belt, and a first rotary motor. The slide rail 1231 is vertically mounted on the mounting frame 122. The slider 1232 is slidably connected to the slide rail 1231. One end of the transmission belt is sleeved on the output end of the first rotary motor, and the transmission belt is connected to the slider 1232. The supporting structure 125 is connected to the slider 1232. The first rotary motor is mounted on the mounting frame 122.

[0062] Specifically, the drive device 124 includes a roller and a second rotary motor for controlling the rotation of the roller; the second rotary motor is mounted on the mounting frame 122, and the roller is mounted on the mounting frame 122 and contacts the guide frame 121.

[0063] Specifically, the supporting structure 125 includes a connecting frame 126, a supporting block 127, and a pushing device 128; the connecting frame 126 is connected to the slider 1232; the pushing device 128 is installed on the connecting frame 126, and the telescopic end of the pushing device 128 is connected to the supporting block 127, which is used to support the furnace body.

[0064] Preferably, the telescopic end of the pushing device 128 is rotatably connected to the supporting block 127.

[0065] The connecting frame 126 includes a main body 1261 and a horizontal part 1262 installed on the main body 1261. The main body 1261 is connected to the slider 1232. The horizontal part 1262 extends in a horizontal direction. The supporting block 127 is sleeved on the horizontal part 1262 and slidably connected to the horizontal part 1262. The pushing device 128 is installed on the horizontal part 1262. The telescopic part of the pushing device 128 reciprocates along the horizontal direction of the horizontal part 1262.

[0066] The supporting block 127 includes a supporting portion 1271 and a guide portion 1272 connected to the supporting portion 1271; the guide portion 1272 is slidably sleeved on the horizontal portion 1262. In this way, the direction of movement of the supporting block 127 is defined.

[0067] Preferably, the pushing device 128 is a cylinder.

[0068] In one embodiment, there are two of each of the supporting device 12 and the lifting device 123, and they are arranged facing each other. This improves the stability of the supporting device 12 in supporting the furnace body.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An experimental furnace, characterized by The utility model relates to a kind of heating furnace, including: Furnace body, the cavity is equipped in the furnace body, the furnace body is equipped with feeding port, the upper portion of the furnace body is equipped with air inlet, the lower portion of the furnace body is equipped with liquid outlet, the feeding port, the liquid outlet and the air inlet one port are communicated with the cavity, the furnace body is equipped with interlayer; Silicate cotton, the silicate cotton is filled in the interlayer; Air brick, the air brick is arranged in the bottom of the cavity; Pipeline, one end of the pipeline is communicated with the air inlet other port, the other end of the pipeline is inserted in the air brick, the pipeline is around in the silicate cotton; Heating element, the heating element is arranged in the cavity; The cross-sectional area of the furnace body decreases from top to bottom along the height direction of the furnace body;The interlayer covers the outer wall of the cavity;The number of the air brick is multiple and is communicated with the pipeline respectively, the number of the port of the pipeline in the air brick is same with the number of the air brick and one-to-one correspondence;The heating element is silicon-carbon rod;The number of the silicon-carbon rod is multiple and is side by side arrangement, and multiple silicon-carbon rods are laid in horizontal direction;The heating element is above the air brick, and the heating element and the air brick are spaced apart;Further including moving device and supporting device, the supporting device is arranged on the moving device, and the supporting device is used to support the furnace body.

2. The test furnace of claim 1, wherein The liquid outlet is provided with a filter block for filtering liquid impurities.

3. The test furnace of claim 1, wherein The moving device includes a chassis, a power device, and a control system in communication with the power device. The power device and the control system are arranged on the chassis, and the furnace body is arranged on the chassis.

Citation Information

Patent Citations

  • Gas bottom blowing refining deoxidation equipment for smelting furnace

    CN115540610A

  • Argon gas preheating device of polycrystalline silicon ingot furnace

    CN206438201U