Laboratory column leaching equipment with simple ore unloading function

Abstract

The utility model discloses laboratory column leaching equipment capable of simply unloading ores. Protruding rings are arranged on the outer edge of the lower end face of a column body, the outer edge of the upper end face of a base and the outer edge of the lower end face of the base respectively. Clamping grooves are formed in the inner peripheries of the first clamp and the second clamp, the maximum height of the clamping grooves is equal to twice the height of the protruding ring, and the depth of the clamping grooves is equal to the protruding width of the protruding ring. The first hoop is hooped between the protruding ring on the outer edge of the lower end face of the column body and the protruding ring on the outer edge of the upper end face of the base, and the protruding ring on the outer edge of the lower end face of the column body and the protruding ring on the outer edge of the upper end face of the base are clamped in a clamping groove of the first hoop in an overlapped mode. The bottom plate is as high as the protruding ring on the outer edge of the lower end face of the base, and the bottom plate and the protruding ring on the outer edge of the lower end face of the base are overlapped and clamped in the clamping groove of the second hoop; a plurality of drain holes are evenly distributed in the surface of the bottom plate. According to the utility model, the workload of dismounting the column is greatly saved, the risk of dismounting the column is reduced, and the reliable connection among the column body, the base and the bottom plate can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory simulation heap leaching test in hydrometallurgy, and in particular to a laboratory column leaching device for simple ore unloading. Background Art

[0002] In hydrometallurgy, columns of different diameters are selected for laboratory column leaching tests according to the different ore particle sizes. Column leaching test, also known as percolation leaching test, is an important indoor test method for heap leaching. The task of column leaching is to determine the optimal concentration of leaching agent, the consumption of leaching agent, the leaching rate of useful elements, the leaching liquid-solid ratio, study the various process index parameters in the leaching process, and make a preliminary evaluation of the prospects for mining the ore deposit by heap leaching.

[0003] According to different processes, the common leaching system is divided into acid leaching system, alkaline leaching system, bacterial biological leaching system, etc., so the leaching column needs to be acid and alkali resistant and corrosion resistant. The material of the column can be plexiglass, stainless steel, PVC, etc. The general structure of the column is generally composed of a hollow cylinder with a certain wall thickness plus a base, and is generally connected by a flange or a fixed base. The leachate is pumped to the top of the column by a peristaltic pump, dripped into the ore, and then penetrated to the bottom of the column, flowing out from the small holes at the bottom, and the leachate is collected in the leachate barrel, and then pumped into the top of the column by the leachate, and the leaching cycle is completed until the leaching task is completed.

[0004] When unloading the column, a large amount of manpower is needed to flip the column, pour out the ore, or hold the flange and remove the flange screws symmetrically to prevent it from getting stuck. For ore with a particle size of 30-40cm, the test ore volume is usually 100-300kg. Therefore, unloading the column is dangerous and the workload is large. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a laboratory column leaching device for simple ore unloading.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A laboratory column leaching device for simple ore unloading comprises a column, a first clamp, a base, a second clamp and a bottom plate, wherein the column is connected to the base through the first clamp, and the base is connected to the bottom plate through the second clamp;

[0008] The outer edge of the lower end surface of the column, the outer edge of the upper end surface of the base and the outer edge of the lower end surface of the base are respectively provided with protruding circles; the inner peripheries of the clamps 1 and 2 are both provided with clamping grooves, the maximum height of the clamping grooves is equal to twice the height of the protruding circles, and the depth of the clamping grooves is equal to the protruding width of the protruding circles; the clamp 1 is tightly clamped between the protruding circle on the outer edge of the lower end surface of the column and the protruding circle on the outer edge of the upper end surface of the base, and the protruding circle on the outer edge of the lower end surface of the column and the protruding circle on the outer edge of the upper end surface of the base are overlapped and clamped in the clamping groove of the clamp 1; the height of the bottom plate is the same as the height of the protruding circle on the outer edge of the lower end surface of the base, and the bottom plate and the protruding circle on the outer edge of the lower end surface of the base are overlapped and clamped in the clamping groove of the clamp 2; a plurality of hydrophobic holes are evenly distributed on the surface of the bottom plate.

[0009] Furthermore, the column and the base are both hollow organic glass or PVC columns, with an inner diameter of 10-50 cm and a wall thickness of 1-5 cm; the height of the column is 0.5-3 m, and the height of the base is 10-30 cm.

[0010] Furthermore, the protruding ring is made of organic glass or PVC, the height of the protruding ring is 1.5-3cm, the protruding width is 0.5-2cm, the maximum height of the groove on the inner circumference of the clamp 1 and the clamp 2 is 3-6cm, and the depth of the groove is 0.5-2cm.

[0011] Furthermore, the clamp one and the clamp two are stainless steel double clamps of the same specification, and the thickness of the stainless steel used to make the clamp one and the clamp two is 2-4 mm.

[0012] Furthermore, a cross load-bearing frame is provided in the base.

[0013] Furthermore, the top surface of the cross load-bearing frame is in a triangular pointed shape.

[0014] Furthermore, a waterproof gasket is provided on the inner edge of the upper end surface of the base.

[0015] Furthermore, the base plate is made of organic glass or PVC, and the diameter of the hydrophobic hole is 2-5 mm.

[0016] Furthermore, the diameter of the bottom plate is the same as the outer diameter of the protruding ring of the base.

[0017] The beneficial effect of the utility model is that the column, base and bottom plate in the laboratory column leaching equipment of the utility model are detachably connected by clamps. After the test, it is only necessary to rotate the screws of clamps one and two to release the connection between the column, base and bottom plate to complete the column unloading work, which greatly saves the workload and reduces the risk of column unloading. Moreover, by optimizing the connection structure of the clamps, the column, the base and the bottom plate, a reliable connection between the column, the base and the bottom plate can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an exploded schematic diagram of a laboratory column leaching device in an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the clamp 1 and the clamp 2 in the embodiment of the utility model;

[0020] Figure 3 This is a front cross-sectional view of the base in the embodiment of the utility model;

[0021] Figure 4 A top view of the base in the embodiment of the utility model;

[0022] Figure 5 Schematic diagram of the bottom plate in the embodiment of the present utility model. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0024] Example 1

[0025] This embodiment provides a laboratory column leaching device for simple unloading of ore, such as Figure 1-5 As shown, it includes a column 1, a clamp 1 2, a base 3, a clamp 2 4 and a bottom plate 5. The column 1 is connected to the base 3 through the clamp 1 2, and the base 3 is connected to the bottom plate 5 through the clamp 2 4;

[0026] The outer edge of the lower end surface of the column 1, the outer edge of the upper end surface of the base 3 and the outer edge of the lower end surface of the base 3 are respectively provided with a protruding circle 7; the inner periphery of the clamp 1 2 and the clamp 2 4 are both provided with a slot 6, the maximum height of the slot 6 is equal to twice the height of the protruding circle 7, and the depth of the slot 6 is equal to the protruding width of the protruding circle 7; the clamp 1 2 is clamped between the protruding circle on the outer edge of the lower end surface of the column 1 and the protruding circle on the outer edge of the upper end surface of the base 3, and the protruding circle on the outer edge of the lower end surface of the column 1 and the protruding circle on the outer edge of the upper end surface of the base 3 are overlapped and clamped in the slot of the clamp 1 2; the height of the bottom plate 5 is the same as the height of the protruding circle on the outer edge of the lower end surface of the base 3, and the bottom plate 5 and the protruding circle on the outer edge of the lower end surface of the base 3 are overlapped and clamped in the slot of the clamp 2 4; a plurality of hydrophobic holes 10 are evenly distributed on the surface of the bottom plate 5.

[0027] Specifically, in this embodiment, the column 1 and the base 3 are both hollow organic glass or PVC columns, with an inner diameter of 10-50 cm and a wall thickness of 1-5 cm; the height of the column 1 is 0.5-3 m, and the height of the base 3 is 10-30 cm.

[0028] In this embodiment, the material of the protruding ring 7 is organic glass or PVC, the height of the protruding ring is 1.5-3cm, the protruding width is 0.5-2cm, the maximum height of the groove 6 on the inner circumference of the clamp 1 2 and the clamp 2 4 is 3-6cm, and the groove depth is 0.5-2cm.

[0029] In this embodiment, the clamp 1 2 and the clamp 2 4 are stainless steel double clamps of the same specification, and the thickness of the stainless steel used to make the clamp 1 2 and the clamp 2 4 is 2-4 mm.

[0030] In this embodiment, a cross load-bearing frame 8 is provided in the base 3. The cross load-bearing frame 8 can increase the load-bearing capacity of the base 3 and reduce the risk of deformation. Specifically, in this embodiment, the top surface of the cross load-bearing frame 8 is triangular pointed, which is convenient for the leachate to flow down.

[0031] In this embodiment, a waterproof gasket 9 is provided on the inner edge of the upper end surface of the base 3 to prevent water leakage at the device connection.

[0032] In the embodiment, the base plate 5 is made of organic glass or PVC, and the diameter of the hydrophobic hole is 2-5 mm.

[0033] In this embodiment, the diameter of the bottom plate 5 is the same as the outer diameter of the protruding circle of the base 3 .

[0034] When in use, the assembled laboratory column immersion equipment is fixed on the column immersion table by the clamp and flange. After the test, the column and base, base and bottom plate can be disassembled by rotating the screws of clamp 1 and clamp 2, which greatly saves the workload and reduces the risk of column unloading.

[0035] Example 2

[0036] This embodiment provides an application example of the laboratory column leaching equipment described in Embodiment 1.

[0037] A low-grade gold-containing sample was subjected to a cyanide column leaching test using the laboratory column leaching equipment described in Example 1.

[0038] Prepare filter cloth, pebbles, lime, sodium cyanide and other leaching reagents in advance as required. Fix the assembled laboratory column leaching equipment on the column leaching table through the clamp and flange, and place the filter cloth on the bottom plate. Throw pebbles down from the top of the column so that the pebbles are placed on the filter cloth.

[0039] Prepare samples according to the prescribed process, transport them to the column leaching laboratory and place them in the sample preparation area. Put the prepared ore into the basin, put the ore into the column, and tap the column at the same time to ensure uniform loading. Number different columns, and record the sample number, weight, particle size and water weight on the cyanide leaching test record sheet. Use clean water to measure the maximum penetration rate and water content of the ore column and record them. Use 1g / L sodium hydroxide to drip for 1-2 days, and start dripping NaCN solution after the pH of the solution dripping out from the column is >9. Use a pump to pump the prepared spray liquid to the spray liquid storage tank, and adjust the corresponding spray intensity according to the established spray system to start spraying. Before cyanidation, the pH of the solution must be adjusted to the specified range to prevent the volatilization of cyanide. Operators must wear gas masks during column leaching cyanidation. After the spraying starts, the leachate is measured, sampled and sent for inspection regularly according to the established plan, and the main technical parameters of the leachate are determined. The leaching liquid is treated accordingly or the parameters are adjusted according to the test needs and then returned to the column for spray leaching; the solution that needs to be discharged is poured into the designated waste liquid collection barrel for centralized treatment.

[0040] Timely track the results of leachate analysis and calculation of the individual and cumulative leaching rates of metals to determine whether the column leaching test can be completed. After the column leaching is completed, wash with 4g / L sodium hydroxide solution until the NaCN concentration of the column solution is less than 10ppm, then use tap water to continuously wash the equipment for 2 days until the pH value of the column solution is about 7, and send the washing water for inspection. Weigh and record the weight of the slurry. Use a cart to place a large stainless steel basin, unscrew the screws of clamp one and clamp two, lower the base and bottom plate, and the ore slides into the iron basin under gravity. Use clean water to rinse the column wall, and the remaining ore will flow into the iron basin with the water to achieve complete column unloading.

[0041] For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all of these changes and modifications should be included in the protection scope of the claims of the utility model.

Claims

1. A laboratory column leaching equipment for simple ore unloading, characterized in that: The invention comprises a column (1), a clamp 1 (2), a base (3), a clamp 2 (4) and a bottom plate (5), wherein the column (1) is connected to the base (3) via the clamp 1 (2), and the base (3) is connected to the bottom plate (5) via the clamp 2 (4); The outer edge of the lower end surface of the column (1), the outer edge of the upper end surface of the base (3) and the outer edge of the lower end surface of the base (3) are respectively provided with protruding circles (7); the inner circumferences of the clamps 1 (2) and 2 (4) are both provided with clamping grooves (6); the maximum height of the clamping grooves (6) is equal to twice the height of the protruding circles (7), and the depth of the clamping grooves (6) is equal to the protruding width of the protruding circles (7); the clamps 1 (2) are clamped tightly between the protruding circles at the outer edge of the lower end surface of the column (1) and the outer edge of the upper end surface of the base (3). The protruding ring on the outer edge of the lower end surface of the column (1) and the protruding ring on the outer edge of the upper end surface of the base (3) are overlapped and clamped in the clamping groove of the clamping hoop (2); the height of the bottom plate (5) is the same as the height of the protruding ring on the outer edge of the lower end surface of the base (3), and the bottom plate (5) and the protruding ring on the outer edge of the lower end surface of the base (3) are overlapped and clamped in the clamping groove of the clamping hoop (4); and a plurality of hydrophobic holes (10) are evenly distributed on the surface of the bottom plate (5).

2. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: The column (1) and the base (3) are both hollow organic glass or PVC columns, with an inner diameter of 10-50 cm and a wall thickness of 1-5 cm; the height of the column (1) is 0.5-3 m, and the height of the base (3) is 10-30 cm.

3. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: The material of the protruding ring (7) is organic glass or PVC, the height of the protruding ring is 1.5-3 cm, the protruding width is 0.5-2 cm, the maximum height of the groove (6) on the inner circumference of the clamp 1 (2) and the clamp 2 (4) is 3-6 cm, and the depth of the groove is 0.5-2 cm.

4. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: The clamp 1 (2) and the clamp 2 (4) are double stainless steel clamps of the same specification, and the thickness of the stainless steel used to make the clamp 1 (2) and the clamp 2 (4) is 2-4 mm.

5. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: A cross load-bearing frame (8) is provided inside the base (3).

6. The laboratory column leaching equipment for simple ore unloading according to claim 5 is characterized in that: The top surface of the cross load-bearing frame (8) is in a triangular pointed shape.

7. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: A waterproof gasket (9) is provided on the inner edge of the upper end surface of the base (3).

8. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: The material of the bottom plate (5) is organic glass or PVC, and the diameter of the hydrophobic hole is 2-5 mm.

9. The laboratory column leaching equipment for simple ore unloading according to claim 1 is characterized in that: The diameter of the bottom plate (5) is the same as the outer diameter of the protruding circle of the base (3).

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