Precious metal reduction furnace

Abstract

The utility model belongs to the technical field of precious metal purification devices, and discloses a precious metal reduction furnace which comprises a heating furnace, a material bearing quartz tube is arranged in the heating furnace, quick flanges are arranged at the two ends of the material bearing quartz tube, and an air inlet pipe and an exhaust pipe are arranged on one side of each quick flange. A water outlet is formed in the side, close to the exhaust pipe, of the quick flange, and a quartz tube supporting frame is arranged on the surface of the material bearing quartz tube; when the eccentric wheel rotates, the connecting plate can be driven to move in a reciprocating mode, the connecting plate can drive the knocking plate to move in a reciprocating mode, when the knocking plate moves, the fixing block can be frequently impacted to make a sound, then an operator is reminded of gas leakage, and finally the leaked gas drives the knocking plate to impact the fixing block to make a sound. Therefore, operators are reminded of gas leakage, potential safety hazards are effectively avoided, and the safety of the whole process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precious metal purification devices, in particular to a precious metal reduction furnace. Background Art

[0002] A precious metal reduction furnace is a device that uses high temperature and reducing gas to reduce precious metal oxides into elemental metals.

[0003] At present, the traditional method of precious metal reduction is to place the material on a quartz tube through a quartz boat, introduce reducing gas, and heat it at high temperature to use redox reaction to obtain metal elements. The product is mainly water. The precious metal reduction process is completed through tail gas treatment and wastewater collection.

[0004] In actual operation, the connection between the air inlet pipe and the supporting quartz tube is usually a flange connection. Although this connection method can provide good sealing and stability in the initial stage, over time, due to the influence of high temperature, high pressure and the corrosive environment generated by chemical reactions, the sealing material at the flange connection is prone to aging, hardening or cracking. Once the sealing performance of the flange connection deteriorates, when the reducing gas continues to be introduced into the quartz tube, the pressure inside the supporting quartz tube increases, and the gas may leak out from these tiny gaps. This leakage is often slow and difficult to detect. The operator may not be able to immediately detect the abnormality, and thus cannot ensure potential safety hazards, reducing the safety of the entire process. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a precious metal reduction furnace.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a precious metal reduction furnace, comprising a heating furnace, wherein a material-carrying quartz tube is provided inside the heating furnace, quick flanges are provided at both ends of the material-carrying quartz tube, an air inlet pipe and an exhaust pipe are provided on one side of the quick flange, a drain port is provided on the side of the quick flange close to the exhaust pipe, and a quartz tube support frame is provided on the surface of the material-carrying quartz tube;

[0007] A warning mechanism is arranged on the surface of the quick flange, and the warning mechanism includes a sealing ring, which is sleeved on the surface of the quick flange, and the bottom end of the sealing ring surface is fixedly installed with a connecting shell, and the top of the connecting shell is fixedly installed with a connecting pipe, and the top of the connecting pipe is fixedly connected to the surface of the sealing ring, the interior of the connecting shell is rotatably connected to an impeller, one side of the impeller is installed with an eccentric wheel, and the interior of the connecting shell is fixedly installed with a spring, one end of the spring is fixedly installed with a connecting plate located at one end of the eccentric wheel, one side of the interior of the connecting shell is fixedly installed with a fixed block, and the side of the connecting plate close to the fixed block is fixedly installed with a knocking plate.

[0008] Preferably, a support groove is provided on one side of the sealing ring, and a support block located inside the support groove is fixedly mounted on the side of the quick flange close to the air intake pipe, and the number of the support blocks and support grooves is three.

[0009] Preferably, a circular groove is provided inside the sealing ring, and a gap is provided between the circular groove, the material-carrying quartz tube and the quick flange.

[0010] Preferably, a slide groove is provided on one side of the interior of the quartz tube support frame, and the interior of the connecting plate is rollingly connected to a pulley located inside the slide groove.

[0011] Preferably, the number of the springs is two, and the springs are designed to be transversely symmetrical about the center of the connecting plate.

[0012] Preferably, a square hole is provided at the bottom end of the connecting shell.

[0013] Preferably, the surfaces of the connecting plates are in contact with the inner wall of the connecting shell, and the knocking plate is arranged in the middle of one side of the connecting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model discloses that when gas leaks from the gap between the quick flange and the material-carrying quartz tube, the leaked gas will pass through the connecting pipe into the interior of the connecting shell and drive the impeller to rotate. The impeller will drive the eccentric wheel and the connecting plate to move. When the eccentric wheel rotates, it will drive the connecting plate to move back and forth, and the connecting plate will drive the knocking plate to move back and forth. When the knocking plate moves, it will frequently hit the fixed block, causing it to make a sound, thereby reminding the operator of the gas leakage. Finally, the knocking plate is driven by the leaked gas to hit the fixed block to make a sound, thereby reminding the operator of the gas leakage, effectively avoiding potential safety hazards and improving the safety of the entire process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2This is a schematic diagram of the squint device of the utility model;

[0018] Figure 3 This is a schematic diagram showing the support block of the utility model;

[0019] Figure 4 This is a schematic diagram of a cross-sectional connection shell of the utility model;

[0020] Figure 5 This is a schematic diagram showing the eccentric wheel of the utility model;

[0021] Figure 6 This is a schematic diagram showing the warning mechanism of the utility model;

[0022] Figure 7 This is a schematic diagram of a cross-sectional connection plate of the present invention.

[0023] In the figure: 1. Heating furnace; 2. Material-carrying quartz tube; 3. Quick flange; 4. Inlet pipe; 5. Exhaust pipe; 6. Drain outlet; 7. Quartz tube support frame; 8. Sealing ring; 9. Connecting shell; 10. Connecting pipe; 11. Impeller; 12. Eccentric wheel; 13. Spring; 14. Connecting plate; 15. Knocking plate; 16. Fixing block; 17. Support block; 18. Support groove; 19. Slide groove; 20. Pulley. DETAILED DESCRIPTION

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

[0025] like Figures 1 to 7 As shown, the utility model provides a precious metal reduction furnace, including a heating furnace 1, a material-carrying quartz tube 2 is provided inside the heating furnace 1, quick flanges 3 are provided at both ends of the material-carrying quartz tube 2, an air inlet pipe 4 and an exhaust pipe 5 are provided on one side of the quick flange 3, a drain port 6 is provided on the side of the quick flange 3 close to the exhaust pipe 5, and a quartz tube support frame 7 is provided on the surface of the material-carrying quartz tube 2;

[0026] A warning mechanism is provided on the surface of the quick flange 3. The warning mechanism includes a sealing ring 8, which is sleeved on the surface of the quick flange 3. A connecting shell 9 is fixedly installed on the bottom end of the surface of the sealing ring 8. A connecting pipe 10 is fixedly installed on the top of the connecting shell 9, and the top of the connecting pipe 10 is fixedly connected to the surface of the sealing ring 8. An impeller 11 is rotatably connected to the inside of the connecting shell 9, and an eccentric wheel 12 is installed on one side of the impeller 11. A spring 13 is fixedly installed inside the connecting shell 9, and one end of the spring 13 is fixedly installed with a connecting plate 14 located at one end of the eccentric wheel 12. A fixed block 16 is fixedly installed on one side of the inside of the connecting shell 9, and a knocking plate 15 is fixedly installed on the side of the connecting plate 14 close to the fixed block 16.

[0027] The above scheme is adopted: the operator places the precious metal oxide into the material-carrying quartz tube 2 through a quartz boat, and then installs the quick flange 3 on one end of the material-carrying quartz tube 2. After the installation is completed, the sealing ring 8 can be put on the surface of the quick flange 3 and the material-carrying quartz tube 2, and the reducing gas is introduced into the material-carrying quartz tube 2 from the air inlet pipe 4. The material-carrying quartz tube 2 is heated, and then an oxidation-reduction reaction is used to obtain a metal element. The product is mainly water, thereby completing the precious metal reduction process. After the precious metal reduction is completed, the exhaust pipe 5 and the drain port 6 can be opened to discharge the waste gas and wastewater.

[0028] After the quick flange 3 is installed, the sealing ring 8 can be put on the surface of the quick flange 3 and the material-carrying quartz tube 2. Then, when the material-carrying quartz tube 2 is ventilated, when the gas leaks from the gap between the quick flange 3 and the material-carrying quartz tube 2, the leaked gas will enter the inside of the sealing ring 8, and then the gas will pass through the connecting pipe 10 into the inside of the connecting shell 9, and will contact the blades on the surface of the impeller 11, and then the flowing gas will drive the impeller 11 to rotate, and the impeller 11 will drive the eccentric wheel 12 to rotate. In the process of the rotation of the eccentric wheel 12, it will push the connecting plate 14 to move. When the connecting plate 14 moves, When the eccentric wheel 12 is moved away from the connecting plate 14, the spring 13 will be compressed. Due to the resilience of the spring 13, when the eccentric wheel 12 is away from the connecting plate 14, the compressed spring 13 will push the connecting plate 14 to reset, and then when the eccentric wheel 12 rotates, the connecting plate 14 will move back and forth, and the connecting plate 14 will drive the knocking plate 15 to move back and forth. When the knocking plate 15 moves, it will frequently hit the fixed block 16, causing it to make a sound, thereby reminding the operator of gas leakage. Finally, the leaked gas drives the knocking plate 15 to hit the fixed block 16 to make a sound, thereby reminding the operator of gas leakage, effectively avoiding potential safety hazards and improving the safety of the entire process.

[0029] like Figure 3 and Figure 4As shown, a support groove 18 is provided on one side of the sealing ring 8, and a support block 17 located inside the support groove 18 is fixedly installed on the side of the quick flange 3 close to the air inlet pipe 4. There are three support blocks 17 and support grooves 18. An annular groove is provided inside the sealing ring 8, and a gap is provided between the annular groove and the material-bearing quartz tube 2 and the quick flange 3.

[0030] The above solution is adopted: through the design of the support block 17 and the support groove 18, when the sealing ring 8 is put on the surface of the quick flange 3 and the material-carrying quartz tube 2, the support block 17 can enter the interior of the support groove 18, and the support block 17 can support the sealing ring 8. Through the design of the sealing ring 8, since a circular groove is provided inside the sealing ring 8, and a gap is provided between the circular groove and the material-carrying quartz tube 2 and the quick flange 3, the leaked reducing gas will enter the interior of the circular groove under the support of the slide groove 19, thereby facilitating the gas to enter the interior of the connecting shell 9.

[0031] like Figure 5 、 Figure 6 and Figure 7 As shown, a slide groove 19 is opened on one side of the interior of the quartz tube support frame 7, and the interior of the connecting plate 14 is rollingly connected to a pulley 20 located inside the slide groove 19. There are two springs 13, and the springs 13 are designed to be transversely symmetrical about the center of the connecting plate 14.

[0032] The above solution is adopted: through the design of the slide groove 19 and the pulley 20, when the connecting plate 14 moves, the pulley 20 will be driven to move. Since the surface of the pulley 20 contacts the inner wall of the slide groove 19, when it moves, the pulley 20 will roll inside the slide groove 19, thereby enabling the connecting plate 14 to move more smoothly. Through the design of the spring 13, since there are two springs 13 and they are symmetrically designed, the two compressed springs 13 will simultaneously push the connecting plate 14 to move, thereby improving the stability of the movement of the connecting plate 14.

[0033] like Figure 4 and Figure 6 As shown, a square hole is opened at the bottom end of the connecting shell 9 , the surface of the connecting plate 14 is in contact with the inner wall of the connecting shell 9 , and the knocking plate 15 is arranged in the middle of one side of the connecting plate 14 .

[0034] The above-mentioned solution is adopted: through the design of the connecting shell 9, since a square hole is opened at the bottom end of the connecting shell 9, after the gas drives the impeller 11 to rotate, it will be discharged from the inside of the square hole, avoiding excessive pressure in the connecting shell 9 and improving the service life of the components. Through the design of the connecting plate 14, since the surface of the connecting plate 14 fits with the inner wall of the connecting shell 9, the connecting shell 9 can limit the connecting plate 14 when the connecting plate 14 moves, and the knocking plate 15 is arranged in the middle of one side of the connecting plate 14, which makes it convenient for the knocking plate 15 to knock on the surface of the fixed block 16.

[0035] The working principle and use process of this utility model:

[0036] The operator places the precious metal oxide into the material-carrying quartz tube 2 through a quartz boat, and then installs the quick flange 3 on one end of the material-carrying quartz tube 2. After the installation is completed, the sealing ring 8 can be put on the surface of the quick flange 3 and the material-carrying quartz tube 2. Then, the reducing gas is introduced into the material-carrying quartz tube 2 through the air inlet pipe 4, and the material-carrying quartz tube 2 is heated to complete the precious metal reduction process. After the precious metal reduction is completed, the exhaust pipe 5 and the drain port 6 can be opened to discharge the waste gas and wastewater.

[0037] During long-term use, when gas leaks from the gap between the quick flange 3 and the material-carrying quartz tube 2, the leaked gas will pass through the connecting pipe 10 into the interior of the connecting shell 9 and push the impeller 11 to rotate. The impeller 11 will drive the eccentric wheel 12 and the connecting plate 14 to move. When the eccentric wheel 12 rotates, it will drive the connecting plate 14 to move back and forth. The connecting plate 14 will drive the knocking plate 15 to move back and forth. When the knocking plate 15 moves, it will frequently hit the fixed block 16, causing it to make a sound, thereby reminding the operator of gas leakage.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precious metal reduction furnace, comprising a heating furnace (1), characterized in that: A material-carrying quartz tube (2) is provided inside the heating furnace (1), quick flanges (3) are provided at both ends of the material-carrying quartz tube (2), an air inlet pipe (4) and an exhaust pipe (5) are provided on one side of the quick flange (3), a drain port (6) is provided on the side of the quick flange (3) close to the exhaust pipe (5), and a quartz tube support frame (7) is provided on the surface of the material-carrying quartz tube (2); The warning mechanism is arranged on the surface of the quick flange (3), and the warning mechanism includes a sealing ring (8), the sealing ring (8) is sleeved on the surface of the quick flange (3), the bottom end of the surface of the sealing ring (8) is fixedly installed with a connecting shell (9), the top end of the connecting shell (9) is fixedly installed with a connecting pipe (10), and the top end of the connecting pipe (10) is fixedly connected to the surface of the sealing ring (8), the interior of the connecting shell (9) is rotatably connected with an impeller (11), one side of the impeller (11) is installed with an eccentric wheel (12), the interior of the connecting shell (9) is fixedly installed with a spring (13), one end of the spring (13) is fixedly installed with a connecting plate (14) located at one end of the eccentric wheel (12), one side of the interior of the connecting shell (9) is fixedly installed with a fixed block (16), and the side of the connecting plate (14) close to the fixed block (16) is fixedly installed with a knocking plate (15).

2. The precious metal reduction furnace according to claim 1, characterized in that: A support groove (18) is provided on one side of the sealing ring (8), and a support block (17) located inside the support groove (18) is fixedly installed on the side of the quick flange (3) close to the air intake pipe (4), and the number of the support blocks (17) and the support groove (18) is three.

3. The precious metal reduction furnace according to claim 1, characterized in that: A circular groove is provided inside the sealing ring (8), and a gap is provided between the circular groove and the material-carrying quartz tube (2) and the quick flange (3).

4. The precious metal reduction furnace according to claim 1, characterized in that: A slide groove (19) is provided on one side of the interior of the quartz tube support frame (7), and a pulley (20) located inside the slide groove (19) is rollingly connected to the interior of the connecting plate (14).

5. The precious metal reduction furnace according to claim 1, characterized in that: The number of the springs (13) is two, and the springs (13) are designed to be transversely symmetrical with respect to the center of the connecting plate (14).

6. The precious metal reduction furnace according to claim 1, characterized in that: A square hole is provided at the bottom end of the connecting shell (9).

7. The precious metal reduction furnace according to claim 1, characterized in that: The surfaces of the connecting plates (14) are in contact with the inner wall of the connecting shell (9), and the knocking plate (15) is arranged in the middle of one side of the connecting plate (14).

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