Crucible holder suitable for fire assaying gold separation furnace

Abstract

The utility model discloses a crucible frame suitable for a fire assaying gold separation furnace, which comprises a crucible frame body, a plurality of sliding frames are slidably arranged on the crucible body along the same direction, a plurality of positioning holes are linearly arranged on the sliding frames, movable clamps are respectively arranged at the tops of the sliding frames and positioned on two sides of the positioning holes, and the movable clamps are used for clamping the sliding frames. A clamp driving part is arranged between the movable clamps on the two sides and can drive the movable clamps on the two sides to move close to or away from each other. According to the utility model, crucibles with different specifications can be clamped in batches to carry out temperature control test on a large batch of gold-bearing samples, and meanwhile, the gold-bearing samples with different components can be independently taken out from the interior of the annealing gold separation furnace without influencing other gold-bearing samples needing to be subjected to continuous temperature control treatment.

Description

Technical Field

[0001] This utility model belongs to the technical field of temperature control testing of gold-containing samples, specifically relating to a crucible rack suitable for fire assay gold separation furnaces. Background Technology

[0002] In the field of gold grade analysis, the fire assay gravimetric method is a classic detection method. Its core process involves key steps such as high-temperature melting, annealing, and gold separation and purification. Among them, the annealing and gold separation process requires the gold-containing sample to be placed in a specially made crucible for programmed temperature control.

[0003] In existing technologies, a single gold-containing sample is placed in a single crucible, and then crucible tongs are used to clamp the crucible and place it into the annealing and gold separation furnace for temperature control. However, in practical applications, it is necessary to test gold-containing samples in many crucibles simultaneously. The traditional method of using crucible tongs to clamp crucibles one by one for testing is difficult to meet the needs of large-scale production that processes hundreds of samples per day.

[0004] In existing technologies, a mesh frame is used to simultaneously hold several crucibles for temperature-controlled testing. However, the required temperature-controlled testing time varies depending on the composition of the gold-containing sample. Existing mesh frames can only remove all crucibles from the furnace at once, affecting the temperature-controlled testing of the remaining gold-containing samples.

[0005] Therefore, in view of the above-mentioned problems in the temperature control test of existing clamped crucibles, this utility model discloses a crucible rack suitable for fire assay and gold separation furnace. Utility Model Content

[0006] This utility model discloses a crucible rack suitable for fire assay gold separation furnace, which can hold crucibles of different specifications in batches for large-scale temperature control testing of gold-containing samples. At the same time, gold-containing samples with different compositions can be taken out of the annealing gold separation furnace individually without affecting other gold-containing samples that need to continue temperature control treatment.

[0007] This utility model is achieved through the following technical solution:

[0008] A crucible rack suitable for a fire assay and gold separation furnace includes a crucible rack body, on which a plurality of sliding frames are slidably arranged in the same direction. A plurality of positioning holes are linearly arranged on the sliding frames. Movable clamps are respectively arranged on both sides of the positioning holes at the top of the sliding frames. A clamp driving member is arranged between the movable clamps on both sides. The clamp driving member can drive the movable clamps on both sides to move relatively closer or relatively farther apart.

[0009] The sliding frame can slide along a first direction on the crucible holder body. Sliding the sliding frame off the crucible holder body allows for the pre-installation of crucibles in the positioning holes on the sliding frame. Then, the clamping drive mechanism moves the movable clamps located on both sides of the positioning holes closer together, clamping and fixing the crucibles on both sides, thus securing the crucibles on the sliding frame. Simultaneously, by controlling the distance the movable clamps move closer together, the clamping drive mechanism can accommodate crucibles of different diameters. It should be noted that crucibles of the same diameter must be installed in all the positioning holes on the same sliding frame. After the crucibles are clamped and fixed, the sliding frame can be slid back onto the crucible holder body, and then the crucible holder body can be forked into the annealing and separating furnace using the crucible holder forks.

[0010] When it is necessary to check the temperature control of different samples filled in crucibles of different sizes on different sliding racks, the corresponding sliding rack can be pulled out from the crucible rack body by using the pull hook, so that the sliding rack slides out of the annealing and gold separation furnace, so that the operator can check the temperature control of the samples in the crucible.

[0011] To better realize this utility model, the crucible rack body is further provided with a sliding groove, the sliding frame is slidably installed inside the sliding groove, the groove wall of the sliding groove is provided with an elastic locking member, and the side of the sliding frame is provided with a locking groove corresponding to the position of the elastic locking member.

[0012] To better realize this utility model, the groove wall of the slide is further provided with an installation groove, and the interior of the installation groove is provided with an elastic locking component. The elastic locking component includes a spring and a lock head. The spring is provided in the installation groove, and the end of the spring near the sliding frame is provided with a lock head, which matches and engages with the locking groove.

[0013] To better realize this utility model, the movable clamp further includes a sliding plate, which is slidably mounted on the top of the sliding frame and located on both sides of the positioning hole. Several arc-shaped clamps are linearly arranged on the sliding plate corresponding to the position of the positioning hole. A clamp driving component is provided between the two sliding plates, which is used to drive the two sliding plates to move relatively closer or relatively farther apart.

[0014] To better realize this utility model, a heat-resistant layer is further provided on the clamping surface of the arc-shaped chuck.

[0015] To better realize this utility model, the clamp driving component further includes a double-ended screw and a nut seat. The double-ended screw is rotatably disposed between two sliding plates on both sides. The two ends of the double-ended screw are provided with threaded sections with opposite directions of rotation. The threaded sections are connected to the sliding plates through the nut seat.

[0016] To better realize this utility model, the sliding frame further includes a first frame and a second frame arranged sequentially from top to bottom. The first frame and the second frame are respectively provided with positioning holes, and the diameter of the positioning hole on the first frame is larger than the diameter of the positioning hole on the second frame.

[0017] To better realize this utility model, further, several protruding pillars are arranged on both sides of the crucible rack body; a pull ring is provided at one end of the sliding frame.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] (1) This utility model slides several sliding frames on the crucible rack body and prepositions the crucibles through several positioning holes linearly arranged on the sliding frames. Then, the movable clamps on both sides of the positioning holes are moved relative to each other by the clamp driving component, so that crucibles of different specifications can be clamped and fixed in large quantities, thereby realizing the temperature control treatment of a large number of gold-containing samples at one time.

[0020] (2) By pulling the sliding frame separately, the sliding frame containing the gold sample to be tested can be slid out of the furnace separately without affecting the other gold samples that need to continue temperature control. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the crucible rack structure;

[0022] Figure 2 This is a top view of the crucible rack;

[0023] Figure 3 This is a schematic diagram of the fixture drive component;

[0024] Figure 4 This is a schematic diagram of the installation of the elastic locking component;

[0025] Figure 5 for Figure 4 Enlarged view of a portion at point A;

[0026] Figure 6 This is a schematic diagram of the sliding frame structure;

[0027] Figure 7 This is a schematic diagram of the chute setup.

[0028] Wherein: 1-Crucible rack body; 2-Sliding frame; 3-Positioning hole; 4-Modible clamp; 5-Clamping drive component; 6-Elastic locking component; 7-Protruding post; 8-Pull ring; 21-First frame; 22-Second frame; 41-Sliding plate; 42-Arc-shaped chuck; 51-Double-ended screw; 52-Nut seat; 61-Spring; 62-Lock head; 100-Slide groove; 200-Locking groove. Detailed Implementation

[0029] Example 1:

[0030] This embodiment provides a crucible rack suitable for fire assay and gold separation furnaces, such as... Figure 1 and Figure 2 As shown, the crucible includes a crucible rack body 1, on which several sliding frames 2 are slidably arranged in the same direction. Several positioning holes 3 are linearly arranged on the sliding frames 2. Movable clamps 4 are respectively arranged on both sides of the top of the sliding frames 2 at the positioning holes 3. A clamp driving member 5 is arranged between the two movable clamps 4. The clamp driving member 5 can drive the two movable clamps 4 to move relatively closer or relatively farther apart.

[0031] A plurality of sliding frames 2 are slidably disposed on the crucible rack body 1 along a first direction, and a plurality of positioning holes 3 are linearly arranged on the sliding frames 2 along the first direction. Meanwhile, movable clamps 4 are disposed on both sides of the positioning holes 3 on the top of the sliding frames 2 along a second direction, perpendicular to the first direction. A clamp driving member 5 is disposed between the movable clamps 4 on both sides, which can drive the movable clamps 4 on both sides to move relatively closer or relatively farther apart.

[0032] The sliding frame 2 is slid out from the crucible holder body 1 to allow the crucible filled with the sample to be installed in the positioning hole 3 on the sliding frame 2. Then, the sliding frame 2 is slid back onto the crucible holder body 1, and the crucible is pre-positioned through the positioning hole 3. Next, the clamping drive 5 drives the movable clamps 4 on both sides of the positioning hole 3 to move closer together until the movable clamps 4 clamp and fix the crucible on both sides, achieving a stable fixation of the crucible on the sliding frame 2. Then, the crucible holder body 1 can be inserted into the annealing and gold separation channel using the crucible holder fork to perform temperature control treatment on the sample inside the crucible. The clamping drive 5 controls the stroke of the movable clamps 4 to move closer together, enabling the clamping of crucibles of different sizes.

[0033] For crucibles of different specifications mounted on different sliding racks 2, and samples filled with different components, it is necessary to observe their temperature control treatment separately. At this time, the sliding rack 2 containing the crucible that needs to be inspected can be slid out from the crucible rack body 1, so that the sliding rack 2 extends out of the annealing and separating furnace, so that the staff can inspect the samples inside the crucibles on it. Crucibles that do not need to be inspected remain inside the annealing and separating furnace.

[0034] Furthermore, several protruding posts 7 are arranged on both sides of the crucible rack body 1, and a pull ring 8 is provided at one end of the sliding frame 2. The protruding posts 7 are used to cooperate with the crucible rack fork. By engaging the protruding posts 7 with the crucible rack fork, the crucible rack body 1 can be moved conveniently. The pull ring 8 is used to cooperate with the pull hook. When it is necessary to move the sliding frame 2, the pull hook can be used to hook the pull ring 8, which will drive the sliding frame 2 to slide on the crucible rack body 1.

[0035] Example 2:

[0036] This embodiment discloses a crucible rack suitable for fire assay and gold separation furnaces, which is a further optimization based on Embodiment 1, such as... Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, the crucible rack body 1 is provided with a sliding groove 100, the sliding frame 2 is slidably installed inside the sliding groove 100, the groove wall of the sliding groove 100 is provided with an elastic locking member 6, and the side of the sliding frame 2 is provided with a locking groove 200 corresponding to the position of the elastic locking member 6.

[0037] The crucible rack body 1 is provided with several sliding grooves 100 extending along a first direction. The side wall of the sliding frame 2 is slidably connected to the groove wall of the sliding groove 100 to realize the sliding of the sliding frame 2 along the first direction. When the sliding frame 2 is completely slid into the sliding groove 100, the locking groove 200 on the side of the sliding frame 2 is aligned with the elastic positioning member 6. At this time, the elastic positioning member 6 engages with the locking groove 200 to lock the sliding frame 2 inside the sliding groove 100 and prevent the sliding frame 2 from moving and falling off.

[0038] Furthermore, the groove wall of the slide 100 is provided with an installation groove, and an elastic locking member 6 is provided inside the installation groove. The elastic locking member 6 includes a spring 61 and a lock head 62. The spring 61 is provided in the installation groove, and the lock head 62 is provided at the end of the spring 61 near the sliding frame 2. The lock head 62 is matched and engaged with the locking groove 200.

[0039] When the lock head 62 is aligned with the locking groove 200, the lock head 62 extends into the locking groove 200 under the elastic force of the spring 61 and engages with the locking groove 200, thereby locking the sliding frame 2. When the sliding frame 2 is pulled by an external force, the lock head 62 is compressed, causing the spring 61 to retract toward the inside of the mounting groove, so that the lock head 62 disengages from the locking groove 200. At this time, the sliding frame 2 can slide under the action of external force.

[0040] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.

[0041] Example 3:

[0042] This embodiment discloses a crucible rack suitable for fire assay and gold separation furnaces, which is further optimized based on the above embodiment 1 or 2, such as... Figure 3 As shown, the movable clamp 4 includes a sliding plate 41, which is slidably mounted on the top of the sliding frame 2 and located on both sides of the positioning hole 3. Several arc-shaped clamps 42 are linearly arranged on the sliding plate 41 corresponding to the position of the positioning hole 3. A clamp driving member 5 is provided between the two sliding plates 41, which is used to drive the two sliding plates 41 to move relatively closer or relatively farther apart.

[0043] The top of the sliding frame 2 is provided with guide grooves on both sides of the positioning hole 3 along the second direction. The bottom of the sliding plate 41 is slidably connected with the guide grooves, so that the sliding plate 41 can slide smoothly along the second direction. An arc-shaped chuck 42 is provided on the side of the sliding plate 41 near the crucible, corresponding to the position of the positioning hole 3. The clamping drive 5 drives the sliding plates 41 on both sides to move closer to each other, thereby clamping and fixing the outer side of the crucible through the arc-shaped chuck 42 on both sides.

[0044] Furthermore, a heat-resistant layer is provided on the clamping surface of the arc-shaped chuck 42. The heat-resistant layer is made of heat-resistant ceramic to ensure that the arc-shaped chuck 42 can withstand the high temperature of the crucible surface.

[0045] The other parts of this embodiment are the same as those in Embodiment 1 or 2 above, so they will not be described again.

[0046] Example 4:

[0047] This embodiment discloses a crucible rack suitable for fire assay and gold separation furnaces, which is further optimized based on any one of embodiments 1-3 above, such as... Figure 3 As shown, the clamp driving component 5 includes a double-ended screw 51 and a nut seat 52. The double-ended screw 51 is rotatably disposed between the sliding plates 41 on both sides. The two ends of the double-ended screw 51 are provided with threaded sections with opposite directions of rotation. The threaded sections are connected to the sliding plates 41 through the nut seat 52.

[0048] A mounting plate is provided between the two sliding plates 41, and a double-ended screw 51 is rotatably mounted on the mounting plate. The sliding plate 41 has mounting holes, in which a nut seat 52 is fixedly installed. The threaded section of the double-ended screw 51 is threadedly engaged with the threaded hole on the nut seat 52. By rotating the double-ended screw 51, the two sliding plates 41 can be moved closer or further apart through their oppositely threaded ends.

[0049] The other parts of this embodiment are the same as any one of the embodiments 1-3 above, so they will not be described again.

[0050] Example 5:

[0051] This embodiment discloses a crucible rack suitable for fire assay and gold separation furnaces, which is further optimized based on any one of embodiments 1-4 above, such as... Figure 6 As shown, the sliding frame 2 includes a first frame 21 and a second frame 22 arranged sequentially from top to bottom. The first frame 21 and the second frame 22 are respectively provided with positioning holes 3, and the diameter of the positioning hole 3 on the first frame 21 is larger than the diameter of the positioning hole 3 on the second frame 22.

[0052] The first frame 21 and the second frame 22 are connected by a column. The diameter of the positioning hole 3 on the first frame 21 is equal to or slightly larger than the maximum diameter of the crucible, while the diameter of the positioning hole 3 on the second frame 22 is smaller than the maximum diameter of the crucible. The upper and lower regions of the crucible can be initially positioned using the positioning holes 3 on the first frame 21 and the second frame 22.

[0053] The other parts of this embodiment are the same as any one of the embodiments 1-4 above, so they will not be described again.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A crucible rack suitable for fire assay and gold separation furnaces, comprising a crucible rack body (1), characterized in that, The crucible body (1) is provided with several sliding frames (2) that slide in the same direction. Several positioning holes (3) are arranged linearly on the sliding frames (2). Movable clamps (4) are provided on both sides of the positioning holes (3) at the top of the sliding frames (2). A clamp driving member (5) is provided between the two movable clamps (4). The clamp driving member (5) can drive the two movable clamps (4) to move relatively closer or relatively farther apart.

2. The crucible rack suitable for fire assay and gold separation furnace according to claim 1, characterized in that, The crucible rack body (1) is provided with a sliding groove (100), and the sliding frame (2) is slidably installed inside the sliding groove (100). An elastic locking member (6) is provided on the groove wall of the sliding groove (100), and a locking groove (200) is provided on the side of the sliding frame (2) corresponding to the position of the elastic locking member (6).

3. A crucible rack suitable for fire assay and gold separation furnaces according to claim 2, characterized in that, The groove (100) has an installation groove on its groove wall. An elastic locking element (6) is provided inside the installation groove. The elastic locking element (6) includes a spring (61) and a lock head (62). The spring (61) is provided in the installation groove. The lock head (62) is provided at one end of the spring (61) near the sliding frame (2). The lock head (62) is matched and engaged with the locking groove (200).

4. A crucible rack suitable for fire assay and gold separation furnaces according to any one of claims 1-3, characterized in that, The movable clamp (4) includes a sliding plate (41), which is slidably mounted on the top of the sliding frame (2) and located on both sides of the positioning hole (3). Several arc-shaped clamps (42) are linearly arranged on the sliding plate (41) corresponding to the position of the positioning hole (3). A clamp driving member (5) is provided between the two sliding plates (41), which is used to drive the two sliding plates (41) to move relatively closer or relatively farther away.

5. A crucible rack suitable for fire assay and gold separation furnaces according to claim 4, characterized in that, The clamping surface of the arc-shaped chuck (42) is provided with a heat-resistant layer.

6. A crucible rack suitable for fire assay and gold separation furnaces according to claim 5, characterized in that, The clamp drive component (5) includes a double-ended screw (51) and a nut seat (52). The double-ended screw (51) is rotatably disposed between two sliding plates (41) on both sides. The two ends of the double-ended screw (51) are provided with threaded sections with opposite directions of rotation. The threaded sections are connected to the sliding plates (41) through the nut seat (52).

7. A crucible rack suitable for fire assay and gold separation furnaces according to any one of claims 1-3, characterized in that, The sliding frame (2) includes a first frame (21) and a second frame (22) arranged sequentially from top to bottom. The first frame (21) and the second frame (22) are respectively provided with positioning holes (3), and the diameter of the positioning hole (3) on the first frame (21) is larger than the diameter of the positioning hole (3) on the second frame (22).

8. A crucible rack suitable for fire assay and gold separation furnaces according to any one of claims 1-3, characterized in that, The crucible rack body (1) has several protruding posts (7) arranged on both sides; the sliding frame (2) has a pull ring (8) at one end.

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