Crucible adjustment device

Abstract

The present invention discloses a crucible adjustment device, which belongs to the technical field of crucible processing equipment. The device comprises a furnace body, the furnace body comprises a furnace wall and a furnace chamber arranged on the inner wall of the furnace wall, a smelting space with an open top formed inside the furnace wall, a crucible arranged in the smelting space, a pad for supporting the crucible arranged inside the furnace wall, a support column arranged at the bottom of the pad so that the pad and the bottom of the inner wall of the furnace wall form a heating space, a pad ring is movably sleeved on the outside of the pad ring, a plurality of through holes are opened on the pad ring, a high-temperature resistant spring is arranged at the bottom of the pad ring, and the pad ring can move vertically below and horizontally of the pad block. The present invention can quickly transfer the heat in the heating space to the smelting space by pressing down the pad ring, and adjust the temperature of the crucible without moving the crucible and the crucible furnace, thereby improving the heat transfer efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of crucible processing equipment, and the disclosure relates to an adjustment device, and more particularly to a crucible adjustment device. Background Art

[0002] Crucible furnace is a simple smelting equipment, mainly used for melting non-ferrous metals with relatively low melting points, such as copper, aluminum and their alloys. The alloy is melted in the crucible, and the heat is transferred to the charge through the crucible. The charge and the combustion products are not in direct contact, so the chemical composition of the alloy is almost unaffected by the furnace gas, and the temperature of the alloy liquid is relatively uniform.

[0003] Since the bottom temperature of the crucible furnace is high, the crucible temperature inside the furnace is usually adjusted by lifting the crucible to change its height. However, the crucible is prone to shaking when it is lifted, which affects the quality of the preparation and may even collide with the furnace body. When the temperature is adjusted by changing the height of the crucible, the crucible is most efficiently heated when it is at the bottom of the furnace, resulting in high fuel consumption and low thermal efficiency.

[0004] Utility model patent number CN210711828U discloses a device for adjusting the crucible position in a single crystal furnace. The specification describes a method for adjusting the temperature and maintaining crucible stability by raising and lowering the furnace body to adjust the distance between the crucible and the furnace heater. Due to the heavy weight and high temperature of the crucible furnace, supporting it with telescopic columns is inconvenient. If the crucible furnace falls, it could cause a serious safety accident. Adjusting the crucible temperature without moving the crucible or the crucible furnace is a pressing issue. Summary of the Invention

[0005] In order to overcome at least one of the above-mentioned disadvantages, the present invention provides a crucible adjustment device. The object of the present invention can be achieved by adopting the following technical solutions:

[0006] A crucible adjustment device comprises a furnace body, which comprises a furnace wall and a furnace chamber arranged on the inner wall of the furnace wall, a smelting space with an open top formed inside the furnace wall, a crucible being arranged in the smelting space, a pad for supporting the crucible being arranged inside the furnace wall, a support column being provided at the bottom of the pad so that a heating space is formed between the pad and the bottom of the inner wall of the furnace wall, a gasket being movably sleeved on the outside of the pad, a plurality of through holes being provided on the gasket, a high-temperature resistant spring being provided at the bottom of the gasket, and the gasket being able to move vertically in the horizontal position and below the gasket, a furnace cover being movably mounted on the upper end of the furnace wall, a support frame being mounted on the furnace body, a clamping part being arranged above the furnace pad assembly, and the lower end of the clamping part being movably clamped to hold the crucible, the clamping part passing through the furnace body and realizing vertical movement under the drive of a driving device, the clamping part comprising a sleeve ring movably sleeved on the outside of the crucible, the sleeve ring moving upward to lift the crucible, and the sleeve ring moving downward to push the sleeve ring and the gasket block to be dislocated.

[0007] The collar can hold the crucible. Both ends of the collar are connected with connecting rods through rotating shafts, and a lifting rack connected to the driving device is arranged at the top of the connecting rod.

[0008] The outer diameter of the bottom surface of the crucible is smaller than the outer diameter of the cushion block, the outer diameter of the collar is smaller than the inner diameter of the cushion block, the bottom surface of the connecting rod is lower than the bottom surface of the collar, and the connecting rod is located above the cushion ring.

[0009] The inner diameter of the collar is larger than the inner diameter of the cushion ring, and the outer diameter of the collar is smaller than the outer diameter of the cushion ring.

[0010] The crucible is a crucible with a wider top and a narrower bottom. The inner diameter of the collar is smaller than the outer diameter of the upper end of the crucible, and the position where the collar holds the crucible is at the upper 1 / 3 of the crucible.

[0011] A plurality of protruding buckles are arranged on the outer wall of the crucible. When the collar moves upward, it is movably stuck on the buckles, and the buckles are arranged at the upper 1 / 3 of the crucible.

[0012] The driving device includes a gear meshing with the lifting rack and a motor for driving the gear to operate.

[0013] The connecting rod is an inverted "U"-shaped connecting rod. The connecting rod and the collar are rotatably connected, and the lifting rack is arranged at the middle part of the top surface of the connecting rod.

[0014] Protrusions are arranged on the connecting rod, and grooves corresponding to the protrusions are opened on the furnace cover.

[0015] The outer wall body of the cushion ring and the inner wall body of the cushion block are in a matching shape, and the cushion ring can move downward from the same horizontal plane of the cushion block.

[0016] The beneficial technical effects of the present invention: According to the present disclosure, the crucible adjusting device uses the clamping part to move vertically upward to lift the furnace cover and the crucible at the same time, replacing the traditional method of lifting the crucible by a chain, effectively avoiding the crucible from colliding with the furnace body. The collar and the connecting rod jointly form a stabilizer to keep the crucible stable; there is no need to manually open the furnace cover, reducing potential safety hazards; the crucible can be rotated to pour out the materials in the crucible, which is more convenient; when the clamping part moves downward, the furnace cover is covered, and at the same time, the cushion ring can be pressed down to quickly transfer the heat in the heating space to the smelting space, adjusting the temperature of the crucible without moving the crucible and the crucible furnace, and improving the heat transfer efficiency. Description of the Drawings

[0017] In the drawings, the following content is given by way of example and not by way of limitation:

[0018] Figure 1 Shows the overall structural schematic diagram of the first embodiment of the present invention;

[0019] Figure 2 Shows the overall front view structural perspective view of the first embodiment of the present invention;

[0020] Figure 3 A perspective view of the main structure of a furnace body according to a first embodiment of the present invention is shown;

[0021] Figure 4 A cross-sectional view of the furnace body and furnace pad structure of the first embodiment of the present invention is shown;

[0022] Figure 5 A perspective view of the overall front structure of the crucible of the first embodiment of the present invention when it is hoisted is shown;

[0023] Figure 6 and Figure 7 A schematic diagram of the mounting structure of the clamping portion and the crucible according to the first embodiment of the present invention is shown;

[0024] Figure 8 It shows a schematic diagram of the overall right side structure of the first embodiment of the present invention;

[0025] Figure 9 A schematic diagram of the installation structure of the pad and the support column according to the second embodiment of the present invention is shown;

[0026] Figure 10 A schematic diagram of the installation structure of the pad and the support column according to the third embodiment of the present invention is shown;

[0027] Figure 11 A schematic diagram of the mounting structure of the clamping portion and the crucible according to the fourth embodiment of the present invention is shown.

[0028] In the figure: 1 is the furnace body, 2 is the support frame, 3 is the clamping part, 4 is the driving device, 5 is the crucible, 11 is the furnace wall, 12 is the furnace chamber, 13 is the furnace cover, 14 is the furnace pad assembly, 15 is the heating space, 16 is the pad, 17 is the support column, 18 is the pad ring, 19 is the high temperature resistant spring, 31 is the collar, 32 is the connecting rod, 33 is the lifting rack, 61 is the inner wall body, and 62 is the outer wall body. DETAILED DESCRIPTION

[0029] In the detailed disclosure below, reference is made to the accompanying drawings, which are characterized by a portion of the drawings as illustrations of specific embodiments that can be implemented, and fully describe these embodiments. In order to make those skilled in the art more clear and specific about the technical solutions of the present invention, the implementation methods described below are not limited to these. The present invention is further described in detail below in conjunction with the embodiments and drawings.

[0030] like Figures 1-10As shown in the figure, the first embodiment of the present invention is a crucible adjustment device, comprising a furnace body 1, the furnace body 1 comprising a furnace wall 11 and a furnace chamber 12 arranged on the inner wall of the furnace wall 11, the interior of the furnace wall 11 forms a smelting space with an open top, a crucible 5 is arranged in the smelting space, a pad 16 for supporting the crucible is arranged inside the furnace wall 11, a support column 17 is provided at the bottom of the pad 16 so that the pad 16 and the bottom of the inner wall of the furnace wall 11 form a heating space 15, the outer portion of the pad 16 is movably sleeved with a gasket ring 18, a plurality of through holes are opened on the gasket ring 18, and a bottom of the gasket ring 18 is provided The high temperature resistant spring 19 and the gasket 18 can move vertically at the horizontal position and below the pad 16. A furnace cover 13 is movably installed on the upper end of the furnace wall 11. A support frame 2 is installed on the furnace body 1. A clamping part 3 is provided above the furnace pad assembly 14. The lower end of the clamping part 3 movably clamps the crucible 5. The clamping part 3 passes through the furnace body 1 and realizes vertical movement under the drive of the driving device 4. The clamping part 3 includes a ring 31 movably sleeved on the outside of the crucible 5. The ring 31 moves upward to lift the crucible 5, and the ring 31 moves downward to push the gasket 18 and the pad 16 to be misaligned.

[0031] The crucible furnace is preferably an electric crucible furnace to prevent the fuel from passing through the furnace pad assembly 14 and contaminating the material in the crucible. If a fuel crucible furnace is selected, the furnace wall 11 is provided with an air inlet connected to the heating space 15 and an air outlet connected to the smelting space. The fuel cover is provided with a cover with high thermal conductivity and good air permeability to isolate the furnace ash.

[0032] The support frame 2 ensures stable vertical movement of the clamping portion 3. The collar 31 moves vertically up and down along a sliding groove on the support frame 2 that matches the shape of the collar 31. This eliminates the need to manually open the furnace cover 13, preventing burns and reducing safety hazards. The collar 31 also maintains the stability of the crucible 5 during lifting, preventing it from shaking relative to the chain crucible 5 and impacting the furnace body 1. By adjusting the contact area between the heating space and the melting space, more heat from the heating space enters the melting space, allowing the crucible temperature to be adjusted without moving the crucible or crucible furnace, resulting in greater convenience and a higher safety factor.

[0033] The crucible 5 is wide at the top and narrow at the bottom. The inner diameter of the collar 31 is smaller than the outer diameter of the crucible's upper end, and the collar 31 engages the crucible 5 at the upper third of the crucible. Due to the shape of the crucible's outer wall, the collar 31 rises to a height that allows it to engage directly with the outer wall. The inner wall of the collar 31 can be configured to conform to the shape of the outer wall, improving stability. The collar 31 and crucible 5 are positioned slightly upward, increasing their contact area relative to chain hoisting, resulting in greater stability.

[0034] The cross section of the lifting rack 33 is a variety of shapes other than a circle, so that the furnace cover 13 cannot rotate or slide around the lifting rack 33, or the furnace cover 13 and the connecting rod 32 are movably engaged to keep the furnace cover 13 stable and avoid affecting the stability of the crucible 5 due to the shaking of the furnace cover 13.

[0035] In this embodiment, the collar 31 can clamp the crucible 5. The two ends of the collar 31 are connected to the connecting rod 32 through a rotating shaft. The top of the connecting rod 32 is provided with a lifting rack 33 connected to the driving device 4. There are two ways for the collar 31 to press the backing ring 18:

[0036] The first method involves the outer diameter of the bottom surface of crucible 5 being smaller than that of spacer block 16, the outer diameter of collar 31 being smaller than the inner diameter of spacer block 16, and the lower end of connecting rod 32 extending downward relative to collar 31. The bottom surface of connecting rod 32 is lower than that of collar 31, and connecting rod 32 is positioned above collar 18. When collar 31 is engaged with spacer block 16, the extended portion of connecting rod 32 presses down on collar 18, thereby improving heat transfer efficiency. The length of the extended portion also limits the distance that can separate spacer block 16 from collar 18.

[0037] The second method is to have the inner diameter of the collar 31 larger than that of the backing ring 18, and the outer diameter of the collar 31 smaller than that of the backing ring 18. The collar 31 directly presses down on the backing ring 18 to improve the heat transfer efficiency. However, this method keeps the collar 31 at a high temperature at the furnace bottom for a long time, which shortens the service life of the collar 31.

[0038] For the second embodiment of the present invention, Figure 9 As shown, the outer wall 62 of the gasket 18 and the inner wall 61 of the spacer 16 are shaped to match, allowing the gasket 18 to move downward from the same horizontal plane as the spacer 16. The cross-section of the upper edge of the inner wall 61 of the spacer 16 is larger than the cross-section of the lower edge, while the cross-section of the upper edge of the outer wall 62 of the gasket 18 is smaller than the cross-section of the lower edge. Both the inner wall 61 and the outer wall 62 are inclined surfaces. The inner wall 61 and the outer wall 62 maintain the gasket 18 level with the spacer 16 under the action of the high-temperature-resistant spring 19. Pressing the gasket 18 downward causes the inner wall 61 and the outer wall 62 to separate, exposing a channel that improves heat transfer.

[0039] The third embodiment of the present invention is as follows: Figure 10 As shown, the upper portion of the inner wall 61 and the lower portion of the outer wall 62 are both provided with annular flanges. The inner wall 61 limits the outer wall 62 from moving upward, so that the gasket 18 can only move downward at the same level as the cushion block 16.

[0040] This is the fourth embodiment of the present invention, as Figure 11As shown, compared to one embodiment, the outer wall of the crucible 5 is provided with multiple protruding clips, and the collar 31 is movably locked in the clips when it moves upward. The clips are located in the upper 1 / 3 of the crucible 5. The clips lock the collar 31, preventing it from moving further upward along the crucible 5, making it suitable for crucibles 5 of different shapes. However, the contact area between the crucible 5 and the collar 31 is smaller than that of the first embodiment, resulting in poorer stability.

[0041] In this embodiment, if Figures 1-11 As shown, the working process of a crucible adjustment device provided in this embodiment is as follows:

[0042] Step 1: Clamp the crucible 5 onto the collar 31 , and the motor drives the gear to rotate to lower the clamping part 3 , placing the crucible 5 on the pad 16 , and the furnace cover 13 on the furnace wall 11 ;

[0043] Step 2: The heat in the heating space 15 is transferred to the melting space through the furnace pad assembly 14 and the multiple through holes to melt the material in the crucible 5;

[0044] Step 3: When the temperature of the smelting space is low, the driving device 4 drives the clamping part 3 to descend, and the lower end of the clamping part 3 presses down the pad ring 18 and the pad 16 to displace the pad. The heat in the heating space 15 enters the smelting space through the gap between the pad 16 and the pad ring 18 to increase the temperature.

[0045] Step 4: After smelting, the driving device 4 drives the clamping part 3 to rise, the connecting rod 32 lifts the furnace cover 13 to rise to realize automatic furnace opening, and the collar 31 is clamped on the crucible 5 to drive the crucible 5 to rise and separate from the furnace wall 11.

[0046] In view of the above detailed description, these and other changes can be made to the embodiments, and this written description, including the best mode examples, discloses the present invention. The scope of the patent obtained by the present invention is defined by the claims, which are not limited by the present disclosure. The scope of protection of the present invention is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, and they are all within the scope of protection of the present invention.

Claims

1. A crucible adjustment device, comprising a furnace body (1), the furnace body (1) comprising a furnace wall (11) and a furnace chamber (12) arranged on the inner wall of the furnace wall (11), the interior of the furnace wall (11) forming a smelting space with an open top, a crucible (5) being arranged in the smelting space, a pad (16) for supporting the crucible being arranged inside the furnace wall (11), a support column (17) being provided at the bottom of the pad (16) so that the pad (16) and the bottom of the inner wall of the furnace wall (11) form a heating space (15), characterized in that: A cushion ring (18) is externally and movably sleeved on the cushion block (16). A plurality of through holes are formed in the cushion ring (18). A high-temperature resistant spring (19) is provided at the bottom of the cushion ring (18). The cushion ring (18) can move horizontally and vertically downward relative to the cushion block (16). A furnace cover (13) is movably installed at the upper end of the furnace wall (11). A support frame (2) is installed on the furnace body (1). A clamping part (3) is provided above the furnace pad assembly (14). The lower end of the clamping part (3) movably clamps a crucible (5). The clamping part (3) penetrates through the furnace body (1) and realizes vertical movement under the drive of a drive device (4). The clamping part (3) includes a collar (31) movably sleeved outside the crucible (5). The collar (31) moves upward to lift the crucible (5), and the collar (31) moves downward to push the cushion ring (18) and the cushion block (16) out of alignment.

2. The crucible adjustment device according to claim 1, characterized in that The collar (31) can latch onto the crucible (5). Connecting rods (32) are connected to both ends of the collar (31) through rotating shafts. A lifting rack (33) connected to the drive device (4) is provided at the top of the connecting rods (32).

3. The crucible adjustment device according to claim 2, characterized in that The outer diameter of the bottom surface of the crucible (5) is smaller than the outer diameter of the cushion block (16). The outer diameter of the collar (31) is smaller than the inner diameter of the cushion block (16). The bottom surface of the connecting rod (32) is lower than the bottom surface of the collar (31). The connecting rod (32) is located above the cushion ring (18).

4. The crucible adjustment device according to claim 2, characterized in that The inner diameter of the collar (31) is larger than the inner diameter of the cushion ring (18). The outer diameter of the collar (31) is smaller than the outer diameter of the cushion ring (18).

5. The crucible adjustment device according to claim 3 or 4, characterized in that: The crucible (5) is a crucible with a wider upper part and a narrower lower part. The inner diameter of the collar (31) is smaller than the outer diameter of the upper end of the crucible. The position where the collar (31) latches onto the crucible (5) is at the upper 1 / 3 of the crucible (5).

6. The crucible adjustment device according to claim 3 or 4, characterized in that: A plurality of protruding buckles are provided on the outer wall of the crucible (5). When the collar (31) moves upward, it movably latches onto the buckles. The buckles are provided at the upper 1 / 3 of the crucible (5).

7. The crucible adjustment device according to claim 1, characterized in that The drive device (4) includes a gear meshing with the lifting rack (33) and a motor for driving the gear to operate.

8. The crucible adjustment device according to claim 1, characterized in that The connecting rod (32) is an inverted "U"-shaped connecting rod. The connecting rod (32) and the collar (31) are rotatably connected. The lifting rack (33) is provided at the middle part of the top surface of the connecting rod (32).

9. The crucible adjustment device according to claim 1, characterized in that Protrusions are provided on the connecting rod. Grooves corresponding to the protrusions are formed on the furnace cover (13).

10. The crucible adjustment device according to claim 1, characterized in that The outer wall body (62) of the cushion ring (18) and the inner wall body (61) of the cushion block (16) are in a shape-matching relationship. The cushion ring (18) can move downward from the same horizontal plane of the cushion block (16).

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