Multi-station gold separating device

Abstract

The utility model provides a multi-station gold separation device, and relates to the technical field of fire assaying, the gold separation device comprises a bearing device, a water washing device, a drying device, an annealing device and a bearing device, the bearing device is used for bearing gold particles, the bearing device is arranged on the bearing device, and the water washing device is arranged on the bearing device; the bearing device sequentially passes through the washing device, the drying device and the annealing device; the washing device is used for adding distilled water into the bearing device so as to clean the residual nitric acid solution in the bearing device; the drying device is used for evaporating liquid in the bearing device; the annealing device is used for heating the gold particles in the bearing device, the hardness of the gold particles in the bearing device is improved, and workers can collect the gold particles conveniently. In the embodiment of the invention, the washing device, the drying device, the annealing device and the like are used for respectively carrying out washing, drying, annealing and other processes on the gold particles in the bearing device, so that the gold particles can realize multi-station gold separation treatment in the technological process, and the working efficiency of the gold separation device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire assay, in particular to a multi-station gold parting device. Background Art

[0002] The fire assay analysis method is the main detection method for gold and silver analysis and trade arbitration in the gold industry at home and abroad. According to the regulations of national standards, the main technological steps of the fire assay detection method include batching, mixing, melting, cupellation, gold parting, weighing, etc. The purpose of the fire assay gold parting process is to convert the gold-silver alloy grains after cupellation into gold grains, which is convenient for the inspector to determine the mass of gold in the sample. At present, most laboratories have been using the working mode of manual operation one by one for fire assay gold parting operation, with high operation repeatability, low detection efficiency, and easy loss of samples due to operation errors. The detection results are greatly affected by factors such as the practitioner's technique, proficiency, or subjective emotion.

[0003] The fire assay gold parting process flow is to first place the gold-silver alloy grains in acetic acid solution for heat treatment, then flatten the alloy grains and place them in a test tube, dissolve the silver with nitric acid of different concentrations, then pour out the gold grains for high-temperature annealing and shaping, and finally collect the gold grains for subsequent weighing. Its detailed operation steps include acetic acid treatment, alloy grain flattening, 1+7 nitric acid treatment, acid replacement, 1+2 nitric acid treatment, cleaning, drying, annealing, collecting gold grains, etc. In order to improve the efficiency of the fire assay gold parting process flow, there is an urgent need for a multi-station gold parting device now. Summary of the Utility Model

[0004] The utility model provides a multi-station gold parting device, which separately sets devices with corresponding functions for each technological step in the fire assay gold parting process flow, so as to achieve the technical effect of improving the working efficiency of the gold parting device, and solve the technical problem of how to provide a new type of gold parting device to improve the working efficiency of the gold parting device.

[0005] To solve the above technical problems, the following technical solutions are now proposed:

[0006] A multi-station gold parting device for cleaning the gold grains separated from gold-silver alloy grains, comprising:

[0007] A carrying device for carrying the gold grains;

[0008] A water washing device for adding distilled water into the carrying device;

[0009] A drying device for evaporating the liquid in the carrying device;

[0010] An annealing device for heating and melting the gold grains in the carrying device;

[0011] A handling device, with the loading device arranged on the handling device, and the loading device passing successively through the water washing device, the drying device, and the annealing device via the handling device;

[0012] Wherein, the heating temperature of the drying device is lower than that of the annealing device.

[0013] Furthermore, in this embodiment, multiple groups of the drying device and the annealing device are included, and the drying device and the annealing device are arranged in sequence and cyclically along the movement direction of the handling device.

[0014] Furthermore, in this embodiment, the handling device includes:

[0015] A first movement slide rail, with the water washing device, the drying device, and the annealing device arranged successively along the direction of the first movement slide rail;

[0016] A second movement slide rail, which is vertically arranged on the first movement slide rail and is slidably connected to the first movement slide rail;

[0017] A manipulator assembly, which is slidably arranged on the second movement slide rail and is used for handling the loading device.

[0018] Furthermore, in this embodiment, the manipulator assembly includes a base, a driving device, a first fork clamp, and a second fork clamp. The base is slidably arranged on the second movement slide rail, the driving device is fixedly arranged on the base, the first fork clamp and the second fork clamp are respectively arranged on both sides of the driving device, the driving device is used to drive the first fork clamp or the second fork clamp to move, and the movement directions of the first fork clamp and the second fork clamp are opposite.

[0019] Furthermore, in this embodiment, the loading device includes a test tube rack and test tubes. The test tubes are arranged on the test tube rack, and protrusions are provided on both sides of the test tube rack. When the manipulator assembly handles the handling assembly, the first fork clamp and the second fork clamp lift the test tube rack through the protrusions.

[0020] Furthermore, in this embodiment, multiple groups of the test tubes are provided on the test tube rack.

[0021] Furthermore, in this embodiment, the test tubes are distributed in a grid pattern on the test tube rack.

[0022] Furthermore, in this embodiment, a suction device is further included. The suction device is arranged between the water washing device and the drying device and is used to extract the liquid in the loading device.

[0023] Further, in this embodiment, the suction device includes a wastewater tank, a bracket, a suction pipe, and a suction pump. The wastewater tank is arranged between the water washing device and the drying device. The suction pipe is suspended above the wastewater tank through the bracket. The suction pump is connected to one end of the suction pipe away from the wastewater tank. When the suction device extracts the liquid in the carrier device, the end of the suction pipe close to the wastewater tank extends into the carrier device.

[0024] Further, in this embodiment, it further includes a blanking device. The blanking device is arranged on the side of the annealing device away from the drying device and is used to store the carrier device after the treatment is completed. When the handling device transports the carrier device, the carrier device passes through the water washing device, the drying device, the annealing device, and the blanking device in sequence through the handling device.

[0025] Beneficial effects: A multi-station gold separation device provided by an embodiment of the present invention. The gold separation device includes a carrier device, a water washing device, a drying device, an annealing device, and a carrier device. Among them, the carrier device is used to carry gold grains. The carrier device is arranged on a handling device and passes through the water washing device, the drying device, and the annealing device in sequence through the handling device. The water washing device is used to add distilled water into the carrier device to wash the residual nitric acid solution in the carrier device. The drying device is used to evaporate the liquid in the carrier device. The annealing device is used to heat the gold grains in the carrier device to increase the hardness of the gold grains in the carrier device, so as to facilitate the collection by the staff. In this embodiment, through devices such as the water washing device, the drying device, and the annealing device, processes such as water washing, drying, and annealing are respectively performed on the gold grains in the carrier device, enabling multi-station gold separation processing of the gold grains during the above process flow, and effectively improving the working efficiency of the gold separation device. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a multi-station gold separation device provided by an embodiment of the present invention;

[0027] Figure 2 It is a schematic structural diagram of the handling device provided by an embodiment of the present invention;

[0028] Figure 3 It is a schematic structural diagram of a part of the suction device provided by an embodiment of the present invention;

[0029] Figure 4 It is a schematic structural diagram of a part of the manipulator assembly provided by an embodiment of the present invention.

[0030] Description of the Reference Numerals

[0031] 1. Carrier device; 11. Pipe rack; 12. Test tube; 13. Protruding edge; 2. Water washing device;

[0032] 3. Drying device; 4. Annealing device; 5. Handling device; 51. First moving slide rail;

[0033] 52. Second moving slide rail; 53. Manipulator assembly; 54. Base; 55. Driving device;

[0034] 56. First fork clamp; 57. Second fork clamp; 6. Suction device; 61. Waste water tank;

[0035] 62. Bracket; 63. Suction pipe; 64. Suction pump; 7. Unloading device. Detailed implementation manners

[0036] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means more than two unless otherwise specifically defined.

[0039] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of the present application, the term " / and" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A / and B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the preceding and following associated objects.

[0041] In the description of the embodiments of the present application, the term "a plurality" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of pieces" means two or more pieces (including two pieces).

[0042] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0044] The cupellation analysis method is the main detection method for gold and silver analysis and trade arbitration in the domestic and international gold industries. According to the regulations of national standards, the main technological steps of the cupellation detection method include main steps such as batching, mixing, melting, cupellation, parting, weighing, etc. The purpose of the cupellation parting process is to convert the gold-silver alloy grains after cupellation into gold grains, which is convenient for the inspector to determine the mass of gold in the sample. At present, most laboratories have been using the working mode of manual operation one by one for cupellation parting operations. The operation has a high repeatability, low detection efficiency, and is prone to sample loss due to operation errors. The detection results are greatly affected by factors such as the operator's technique, proficiency, or subjective emotions.

[0045] The process of parting gold by cupellation is as follows: first, place the gold-silver alloy pellet in acetic acid solution for heat treatment, then flatten the pellet and place it in test tube 12. Dissolve the silver with nitric acid of different concentrations, pour out the gold pellet and perform high-temperature annealing for shaping, and finally collect the gold pellet for subsequent weighing. Its detailed operation steps include acetic acid treatment, pellet flattening, 1+7 nitric acid treatment, acid replacement, 1+2 nitric acid treatment, cleaning, drying, annealing, and gold pellet collection. In the existing cupellation gold parting device, the drying and annealing processes are often realized by the same heating equipment. Therefore, during the transformation of different stages, a relatively long heating or cooling process is often required. Therefore, there is an urgent need for a new type of gold parting device to improve the working efficiency of the gold parting device.

[0046] In order to solve the technical problem of how to provide a new type of gold parting device to improve the working efficiency of the gold parting device, in the embodiments of this application, a multi-station gold parting device is provided. In the cupellation gold parting process, devices with corresponding functions are separately set for each process step to achieve the technical effect of improving the working efficiency of the gold parting device.

[0047] As Figure 1 shown, Figure 1 The present invention provides a multi-station gold parting device according to an embodiment of the present invention. The gold parting device includes a carrier device 1, a water washing device 2, a drying device 3, an annealing device 4, and a handling device 5. Among them, the carrier device 1 is used to carry the gold pellet. The carrier device 1 is arranged on the handling device 5, and the carrier device 1 passes through the water washing device 2, the drying device 3, and the annealing device 4 in sequence through the handling device 5. The water washing device 2 is used to add distilled water into the carrier device 1 to wash the residual nitric acid solution in the carrier device 1. The drying device 3 is used to evaporate the liquid in the carrier device 1. The annealing device 4 is used to heat the gold pellet in the carrier device 1 to increase the hardness of the gold pellet in the carrier device 1 for easy collection by the staff.

[0048] Exemplarily, the specific process of cupellation gold parting is as follows:

[0049] S1. Dissolve silver with nitric acid

[0050] Pour an appropriate amount of hot nitric acid (about 80-90°C) into the carrier device 1 to make it react fully with the gold-silver alloy in the carrier device 1. Observe until the silver is completely dissolved. At this time, the solution is clear and only the gold pellet remains.

[0051] S2. Washing

[0052] Transfer the carrier device 1 to the water washing device 2 through the handling device 5. The water washing device 2 repeatedly adds distilled water into the carrier device 1 to fully remove the attached silver nitrate solution.

[0053] S3. Low-temperature drying

[0054] Control the temperature of the drying device 3 at 150°C. After transporting the carrier device 1 to the drying device 3 by the transfer device 5, dry the remaining distilled water in the carrier device 1.

[0055] S4. High-temperature annealing

[0056] Control the temperature of the annealing device 4 at 400°C. Transport the carrier device 1 to the annealing device 4 by the transfer device 5, and anneal the gold grains in the carrier device 1 by heating them to transform the sponge gold into harder golden-yellow gold grains.

[0057] In this embodiment, devices such as the water-washing device 2, the drying device 3, and the annealing device 4 are used to perform processes such as water-washing, drying, and annealing on the gold grains in the carrier device 1 respectively, enabling multi-station gold separation processing of the gold grains during the above process flow, effectively improving the working efficiency of the gold separation device.

[0058] Secondly, in this embodiment, the heating temperature of the drying device 3 is lower than that of the annealing device 4. It can be understood that after the gold grains in the carrier device 1 are washed by the water-washing device 2, there is still a small amount of distilled water remaining in the carrier device 1. By controlling the temperature of the drying device 3 at about 150°C, that is, by controlling the temperature of the drying device 3 within a lower temperature range, the phenomenon of violent boiling during the drying of the gold grains by the drying device 3 can be effectively avoided; and in order to anneal the gold grains in the carrier device 1, the temperature of the annealing device 4 is controlled at about 400°C.

[0059] Exemplarily, in this embodiment, the gold separation device includes multiple groups of drying devices 3 and annealing devices 4, and the drying devices 3 and the annealing devices 4 are arranged in sequence and cyclically along the moving direction of the carrier device 1. It can be understood that in the fire assay gold separation process, in order to more fully dry and anneal the gold grains, it is often necessary to heat the gold grains in the carrier device 1 by the drying devices 3 and the annealing devices 4 for a long time. Therefore, in this embodiment, by using multiple groups of drying devices 3 and annealing devices 4, the gold separation device can simultaneously perform the drying and annealing work of multiple groups of gold grains, further improving the working efficiency of the gold separation device.

[0060] Exemplarily, such as Figure 2As shown, in this embodiment, the handling device 5 includes a first moving slide rail 51, a second moving slide rail 52, and a manipulator assembly 53. The water washing device 2, the drying device 3, and the annealing device 4 are arranged in sequence along the direction of the first moving slide rail 51. The second moving slide rail 52 is vertically arranged on the first moving slide rail 51 and is slidably connected to the first moving slide rail 51. The manipulator assembly 53 is slidably arranged on the second moving slide rail 52 and is used to handle the loading device 1. It can be understood that in this embodiment, the first moving slide rail 51 is defined as the X-axis direction, and the second moving slide rail 52 perpendicular to the first moving slide rail 51 is the Y-axis direction. During use, the first moving slide rail 51 and the second moving slide rail 52 are used to control the manipulator assembly 53 to move the handling device 5 in any direction of the X-Y axis.

[0061] Exemplarily, as Figure 4 shown, the manipulator assembly 53 includes a base 54, a driving device 55, a first fork clamp 56, and a second fork clamp 57. The base 54 is slidably arranged on the second moving slide rail 52. The driving device 55 is fixedly arranged on the base 54. The first fork clamp 56 and the second fork clamp 57 are respectively arranged on both sides of the driving device 55. The driving device 55 is used to drive the first fork clamp 56 or the second fork clamp 57 to move, and the moving directions of the first fork clamp 56 and the second fork clamp 57 are opposite. It can be understood that the base 54 is slidably arranged on the second moving slide rail 52, and through the second moving slide rail 52, the base 54 can slide up and down in the reverse direction of the Y-axis. The driving device 55 is fixedly arranged on the base 54. The first fork clamp 56 and the second fork clamp 57 are respectively arranged on both sides of the driving device 55, and the first fork clamp 56 and the second fork clamp 57 are arranged perpendicular to the two-dimensional plane formed by the X-Y axis. When the driving device 55 drives the first fork clamp 56 and the second fork clamp 57 to move, the first fork clamp 56 and the second fork clamp 57 move simultaneously in the X-axis direction, and the moving directions of the first fork clamp 56 and the second fork clamp 57 are opposite.

[0062] Exemplarily, in this embodiment, the loading device 1 includes a test tube rack 11 and test tubes 12. The test tubes 12 are arranged on the test tube rack 11. Protruding edges 13 are provided on both sides of the test tube rack 11. When the manipulator assembly 53 handles the handling assembly, the first fork clamp 56 and the second fork clamp 57 lift the test tube rack 11 through the protruding edges 13, thereby realizing the transfer of the handling device 5.

[0063] Exemplarily, in this embodiment, multiple groups of test tubes 12 are provided on the test tube rack 11. By providing multiple groups of test tubes 12 for containing alloy grains on the test tube rack 11, the gold separation device can perform multi-component gold separation work simultaneously, further improving the working efficiency of the gold separation device.

[0064] Exemplarily, multiple groups of test tubes 12 are distributed in a grid pattern on the test tube rack 11. By arranging the multiple groups of test tube racks 11 regularly on the test tube rack 11, it is convenient for each device in the gold separation device to process the alloy grains in the test tubes 12.

[0065] In this embodiment, the gold separation device further includes a suction device 6. The suction device 6 is arranged between the water washing device 2 and the drying device 3 and is used to extract the liquid in the carrying device 1. It can be understood that during the water washing process, generally, the gold grains in the carrying device 1 need to be rinsed 3 - 5 times to thoroughly remove the attached silver nitrate solution. During the repeated rinsing process, the solution after rinsing the gold grains can be removed by the suction device 6. Secondly, after the water washing is completed, there will still be a lot of liquid in the carrying device 1. By using the suction device 6 to extract the excessive liquid in the carrying device 1, it is easier for the gold grains in the carrying device 1 to dry.

[0066] Exemplarily, as Figure 3 shown, in this embodiment, the suction device 6 includes a waste water tank 61, a bracket 62, a suction pipe 63, and a suction pump 64. The waste water tank 61 is arranged between the water washing device 2 and the drying device 3. The suction pipe 63 is suspended above the waste water tank 61 through the bracket 62. The suction pump 64 is connected to the end of the suction pipe 63 far away from the waste water tank 61. When the suction device 6 extracts the liquid in the carrying device 1, the end of the suction pipe 63 close to the waste water tank 61 extends into the carrying device 1, and then the liquid in the carrying device 1 is extracted. In this embodiment, a waste water tank 61 for collecting waste liquid is also provided directly below the suction pipe 63. When the suction pump 64 extracts the liquid in the carrying device 1 through the suction pipe 63, the extracted liquid can be temporarily stored in the suction pipe 63. After the handling device 5 drives the carrying device 1 away from the suction pipe 63, the suction pump 64 can control the suction pipe 63 to spray the liquid temporarily stored in the suction pipe 63 into the waste water tank 61. During this process, the suction force required for the suction pump 64 to suck the liquid can be reduced, and it can be avoided that small gold grains are sucked into the suction pipe 63 during the suction process, affecting the accuracy of detection.

[0067] In this embodiment, the gold separation device further includes a feeding device 7. The feeding device 7 is arranged on the side of the annealing device 4 away from the drying device 3 and is used to store the carrying device 1 after the treatment is completed. When the carrying device 1 transports the carrying device 1, the carrying device 1 passes through the water washing device 2, the drying device 3, the annealing device 4, and the feeding device 7 in sequence through the carrying device 1. It can be understood that in this embodiment, the feeding device 7 is used to store the carrying device 1 after the gold separation process is completed. After the handling device 5 drives the carrying device 1 to pass through the water washing device 2, the drying device 3, and the annealing device 4 in sequence, the carrying device 1 is placed at the feeding device 7 to facilitate the staff to complete the feeding.

[0068] It should be noted that this application is not limited to the above embodiments. The above embodiments are only examples, and embodiments having the same structure in essence as the technical idea and achieving the same effects within the scope of the technical solution of this application are all included in the technical scope of this application. In addition, within the scope of not departing from the gist of this application, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of this application.

Claims

1. A multi-station gold separation device for cleaning gold particles separated from gold and silver particles, characterized in that: include: A carrying device, used for carrying gold particles; A water washing device, used for adding distilled water into the carrying device; A drying device, used for evaporating the liquid in the carrying device; An annealing device, used for heating and melting the gold particles in the carrier device; A conveying device, the carrying device is arranged on the conveying device, and the carrying device passes through the washing device, the drying device, and the annealing device in sequence through the conveying device; Wherein, the heating temperature of the drying device is lower than the heating temperature of the annealing device.

2. The multi-station gold separation device according to claim 1, characterized in that: It comprises a plurality of groups of the drying devices and the annealing devices, and the drying devices and the annealing devices are cyclically arranged in sequence along the moving direction of the conveying device.

3. The multi-station gold separation device according to claim 1, characterized in that: The transport device comprises: A first moving slide rail, wherein the washing device, the drying device, and the annealing device are sequentially arranged along the direction of the first moving slide rail; a second moving slide rail, the second moving slide rail being vertically arranged on the first moving slide rail and being slidably connected to the first moving slide rail; A manipulator assembly is slidably disposed on the second moving slide rail and is used for carrying the carrying device.

4. The multi-station gold separation device according to claim 3, characterized in that: The manipulator assembly includes a base, a driving device, a first fork clamp and a second fork clamp. The base is slidably arranged on the second moving slide rail, and the driving device is fixedly arranged on the base. The first fork clamp and the second fork clamp are respectively arranged on both sides of the driving device. The driving device is used to drive the first fork clamp or the second fork clamp to move, and the movement directions of the first fork clamp and the second fork clamp are opposite.

5. The multi-station gold separation device according to claim 4, characterized in that: The carrying device includes a test tube rack and a test tube, wherein the test tube is arranged on the test tube rack, and protrusions are arranged on both sides of the test tube rack. When the manipulator assembly carries the test tube rack, the first fork clamp and the second fork clamp lift the test tube rack through the protrusions.

6. The multi-station gold separation device according to claim 5, characterized in that: A plurality of groups of test tubes are arranged on the test tube rack.

7. The multi-station gold separation device according to claim 6, characterized in that: The test tubes are distributed on the test tube rack in a grid shape.

8. The multi-station gold separation device according to claim 1, characterized in that: It also includes a suction device, which is arranged between the water washing device and the drying device and is used to extract liquid from the carrying device.

9. The multi-station gold separation device according to claim 8, characterized in that: The suction device includes a wastewater tank, a bracket, a suction pipe and a suction pump. The wastewater tank is arranged between the washing device and the drying device. The suction pipe is suspended above the wastewater tank through the bracket. The suction pump is connected to an end of the suction pipe away from the wastewater tank. When the suction device extracts liquid in the carrying device, an end of the suction pipe close to the wastewater tank extends into the carrying device.

10. The multi-station gold separation device according to claim 1, characterized in that: It also includes a material unloading device, which is arranged on a side of the annealing device away from the drying device and is used to store the carrier device after processing. When the carrying device transports the carrier device, the carrier device passes through the washing device, the drying device, the annealing device and the material unloading device in sequence through the carrying device.

Images