Lateritic nickel ore leaching apparatus

Abstract

Disclosed in the present application is a lateritic nickel ore leaching apparatus, comprising a leaching tank, a spraying mechanism and an ore container, wherein the leaching tank is internally provided with a cavity having an open top end, a spraying area is provided at the top of the leaching tank, and liquid can be contained in the cavity; the spraying mechanism comprises a moving member and a spraying member, the moving member being movably connected to the top end of the leaching tank and being capable of reciprocatingly moving in the spraying area, and the spraying member being connected to the moving member; and the material container is internally provided with a cavity having an open top end, and is also provided with a plurality of water leakage holes in communication with the cavity, the ore container is detachably connected to the leaching tank and is located in the spraying area, and the cavity can be used for holding ore. By using the detachable ore container, the present application solves the problem in the prior art wherein it takes a long time to clean up tailings and leaching continuity thus cannot be ensured.

Description

A laterite nickel ore leaching device TECHNICAL FIELD

[0001] The present application relates to the technical field of leaching device, in particular to a laterite nickel ore leaching device. BACKGROUND

[0002] Laterite nickel ore is an important nickel resource, mainly composed of silicate minerals and oxide minerals, usually containing a high proportion of aluminum, iron, magnesium and a small amount of nickel and cobalt. The leaching of laterite nickel ore mainly refers to using chemical solvents (such as sulfuric acid or nitric acid) to dissolve valuable metals (such as nickel and cobalt) in the ore, so as to be separated and purified subsequently.

[0003] Chinese patent CN203846087U discloses a novel countercurrent leaching tank, which comprises a leaching tank body, a plurality of liquid injection pipes are arranged at the bottom of the leaching tank body, an overflow port is arranged at the upper part of the leaching tank body, one end of the liquid injection pipe extends out of the bottom of the leaching tank body and is connected with a pressure water supply device, a plurality of water injection holes are arranged along the length direction of the liquid injection pipe, and a flow rate adjusting device is further arranged between the liquid injection pipe and the pressure liquid supply device. However, through the above-mentioned scheme, the laterite nickel ore is leached, and after the leaching of the laterite nickel ore in the leaching tank body is completed, the leaching liquid needs to be pumped out, and then a worker needs to enter the leaching tank to clean the ore, which consumes a long time to clean the laterite nickel ore in the leaching tank body, and cannot guarantee the continuity of leaching, thereby affecting the production efficiency.

[0004] SUMMARY

[0005] The present application aims to overcome the above technical deficiencies, and provides a laterite nickel ore leaching device, which solves the problem that a long time is needed to clean the ore in the prior art, cannot guarantee the continuity of leaching, and affects the production efficiency.

[0006] In order to achieve the above technical purpose, the following technical scheme is adopted in the present application:

[0007] The present application provides a laterite nickel ore leaching device, which comprises a leaching tank, a spraying mechanism and a material containing tank, a cavity with an open top end is arranged in the leaching tank, a spraying area is arranged at the top of the leaching tank, and the cavity can contain liquid; the spraying mechanism comprises a moving part and a spraying part, the moving part is movably connected with the top end of the leaching tank, the moving part can reciprocate in the spraying area, and the spraying part is connected with the moving part; a cavity with an open top end is arranged in the material containing tank, a plurality of water leakage holes communicating with the cavity are formed in the material containing tank, the material containing tank is detachably connected with the leaching tank and located in the spraying area, and the cavity can be used to fill the laterite nickel ore.

[0008] In some embodiments, the moving part comprises a mounting frame, two reversible motors, two gears and two racks, the mounting frame is slidably connected to opposite sides of the leaching tank, the two reversible motors are connected to the mounting frame, the output ends of the reversible motors are fixedly connected to the two gears, the two racks are arranged on opposite sides of the leaching tank, and the two racks are engaged with the two gears respectively.

[0009] In some embodiments, the mounting frame comprises two vertical plates and a horizontal plate, the horizontal plate is fixedly arranged between the two vertical plates, the two vertical plates are slidably connected to opposite sides of the leaching tank, and the two reversible motors are fixedly connected to the two vertical plates respectively.

[0010] In some embodiments, the spraying part comprises a liquid guide pipe fixedly arranged between the two vertical plates, the liquid guide pipe is arranged along the width direction of the leaching tank, and a plurality of spray heads are arranged on the liquid guide pipe at intervals.

[0011] In some embodiments, the spraying mechanism further comprises a liquid pumping part, and the spraying part is connected to the cavity through the liquid pumping part.

[0012] In some embodiments, a filter plate is fixedly arranged in the leaching tank, the filter plate divides the cavity into a placing cavity and a clean water cavity, the placing cavity corresponds to the spraying area, and the spraying part is connected to the clean water cavity through the liquid pumping part.

[0013] In some embodiments, a plurality of water leakage holes are arranged at the lower end of the material holding tank, and the lower end of the material holding tank has a height difference with the inner bottom wall of the cavity.

[0014] In some embodiments, the material holding tank is formed by connecting a plurality of conical hoppers, and the lower end of each of the plurality of conical hoppers is provided with a plurality of water leakage holes.

[0015] In some embodiments, the top of the material holding tank is provided with a plurality of lifting rings.

[0016] In some embodiments, the bottom end of the leaching tank is provided with a drainage pipe connected to the cavity, and the drainage pipe is provided with a control valve.

[0017] Compared with the prior art, the laterite nickel ore leaching equipment provided by the application is characterized in that a moving part is movably connected to the top end of the leaching tank, a spraying part is connected to the moving part, the moving part reciprocates along the length direction of the leaching tank, so that a spraying area is formed below the spraying part, a cavity with an open top end is arranged in the material holding tank, a plurality of water leakage holes are arranged on the material holding tank and communicate with the cavity, the material holding tank is connected to the leaching tank and located in the spraying area, the mineral material in the material holding tank is sprayed by the spraying part, and the leaching liquid can flow into the leaching tank through the water leakage holes and be collected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic view of a laterite nickel ore leaching equipment according to an embodiment of the application;

[0019] Fig. 2 is a structural schematic view of a moving part according to an embodiment of the application;

[0020] Fig. 3 is a structural schematic view of the internal structure of a laterite nickel ore leaching equipment according to an embodiment of the application;

[0021] Fig. 4 is a structural schematic view of a material holding tank according to an embodiment of the application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and do not limit the application.

[0023] In order to solve the technical problem that the mineral material needs to be cleaned for a long time in the prior art, the continuity of leaching cannot be guaranteed, and the production efficiency is affected, the application provides a laterite nickel ore leaching equipment, a material holding tank is detachably connected in the leaching tank, leaching liquid is obtained by spraying the mineral material in the material holding tank, after leaching is completed, the remaining material holding tanks filled with mineral material are replaced for continuous leaching, and the leaching efficiency of the mineral material is improved.

[0024] It should be noted that the laterite nickel ore leaching equipment is used for but not limited to leaching of laterite nickel ore, in order to facilitate the description, in the application, only a laterite nickel ore leaching equipment is used for leaching of laterite nickel ore as an example for description, and details are not described herein.

[0025] Referring to FIG. 1-4, FIG. 1-4 is a kind of laterite nickel ore leaching equipment in the embodiment of the application, including leaching tank 1, spraying mechanism 2 and material tank 3, the cavity with top opening is provided in the leaching tank 1, and the leaching tank 1 top is equipped with spraying area, the cavity can be filled with liquid;The spraying mechanism 2 includes moving part 21 and spraying part 22, the moving part 21 is movably connected with the top of the leaching tank 1, the moving part 21 can reciprocate in the spraying area, the spraying part 22 is connected with the moving part 21;The cavity with top opening is provided in the material tank 3, a plurality of water leakage holes 30 are formed in the material tank 3 and communicated with the cavity, the material tank 3 can be detachably connected with the leaching tank 1 and located in the spraying area, the cavity can be used to fill laterite nickel ore.

[0026] In an embodiment, the leaching tank 1 is in the shape of a rectangle as a whole, the leaching tank 1 can be composed of steel plates welded together, and the leaching tank 1 has high structural strength. Specifically, the bottom end of the leaching tank 1 is provided with a liquid discharge pipe 12 communicated with the cavity, and the liquid discharge pipe 12 is provided with a control valve.

[0027] On the basis of the above scheme, in order to make the laterite nickel ore in the material tank contact with the liquid more fully, the spraying part is connected with the moving part, the moving part reciprocates in the spraying area, and the spraying part can uniformly spray the liquid into the material tank 3.

[0028] It should be noted that the moving part 21 is not limited to a specific structure, as long as it can reciprocate in the spraying area, and no other limitations are made herein.

[0029] In the specific embodiment, the moving part 21 includes a mounting frame 211, two reversible motors 212, two gears 213 and two racks 214, the mounting frame 211 is slidably connected with the opposite sides of the leaching tank 1, the two reversible motors 212 are connected with the mounting frame 211, the output ends of the reversible motors 212 are fixedly connected with the two gears 213, and the two racks 214 are respectively arranged on the opposite sides of the leaching tank 1 and engaged with the two gears 213.

[0030] Among them, the mounting frame 211 includes two vertical plates and a horizontal plate, the horizontal plate is fixedly arranged between the two vertical plates, the two vertical plates are slidably connected with the opposite sides of the leaching tank 1, and the two reversible motors 212 are fixedly connected with the two vertical plates. Specifically, the opposite sides of the leaching tank 1 are each provided with a T-shaped sliding rail, and the two vertical plates are each provided with a T-shaped sliding groove matched with the two T-shaped sliding rails.

[0031] In the specific embodiment, the spraying member 22 comprises a liquid guide pipe fixed between the two vertical plates, and the liquid guide pipe is arranged along the width direction of the leaching tank 1, and a plurality of spraying heads are arranged on the liquid guide pipe at intervals.

[0032] On the basis of the above-mentioned scheme, the spraying mechanism 2 further comprises a liquid pumping member 23, and the spraying member 22 is connected with the cavity through the liquid pumping member 23, and the liquid is recycled, so that the waste of water resources can be reduced.

[0033] It should be noted that the liquid pumping member 23 is a water pump, and the liquid pumping member 23 pumps the liquid in the cavity to the spraying member 22, and the process of spraying the liquid to the material containing tank 3 through the spraying member 22 is intermittent, so as to avoid the overflow of the liquid from the top of the material containing tank 3.

[0034] On the basis of the above-mentioned scheme, in order to avoid the clogging of the spraying member, specifically, a filter plate 11 is fixed in the leaching tank 1, the filter plate 11 divides the cavity into a placing cavity and a clean water cavity, the placing cavity corresponds to the spraying area, and the spraying member 22 is connected with the clean water cavity through the liquid pumping member 23.

[0035] In an embodiment, in order to prolong the time of the liquid flowing in the material containing tank 3, specifically, a plurality of water leakage holes 30 are arranged at the lower end of the material containing tank 3, and there is a height difference between the lower end of the material containing tank 3 and the inner bottom wall of the cavity.

[0036] In the specific embodiment, in order to facilitate the smooth flow of the leaching liquid, the material containing tank 3 is connected by a plurality of conical hoppers 31, and the lower end of each of the plurality of conical hoppers 31 is provided with a plurality of water leakage holes 30.

[0037] It should be noted that the upper part of the conical hopper 31 is wider, and the lower part is narrower, so that more laterite nickel ore can be placed, so that the contact area with the liquid is larger, which helps to improve the leaching efficiency; moreover, the conical design can control the flow speed of the liquid, and appropriate flow speed helps to ensure that the liquid can fully contact with the solid in the leaching process, so as to improve the extraction rate of the required components; in addition, the bottom of the conical hopper 31 helps to reduce the residue, especially in the case that the liquid needs to be completely emptied, the conical structure makes the liquid more easily concentrated at the bottom and flow out along the narrow water leakage holes 30, reducing the possibility of liquid remaining in the container.

[0038] On the basis of the above scheme, in order to facilitate the replacement of the material tank 3 and improve the continuity of the laterite nickel ore leaching, specifically, the top of the material tank 3 is provided with a plurality of lifting rings 32, and the row hoist mechanism can be matched with the lifting ring 32 to lift the material tank 3 away from the leaching tank 1, and other material tanks 3 filled with laterite nickel ore are lifted into the spraying area. It should be noted that the opposite sides of the top of the material tank 3 are formed with flanges, and the two flanges can be abutted against the opposite side walls of the leaching tank 1.

[0039] In order to better understand the present application, the technical solutions of the present application will be described in detail below in combination with FIGS. 1-4:

[0040] By moving the moving piece 21 to one side of the spraying area, the row hoist mechanism (not shown in the figure) is matched with the lifting ring 32 to transport the material tank 3 to the spraying area, and the opposite side walls of the leaching tank 1 abut against the flanges on the opposite sides of the material tank 3, so that the material tank 3 and the leaching tank 1 are detachably connected, and the bottom end of the material tank 3 extends into the leaching tank 1. By reciprocating the moving piece 21 in the spraying area, the liquid in the cavity is pumped to the spraying piece 22 by the liquid pumping piece 23, and is sprayed into the material tank 3 through the spraying piece 22. The leaching liquid flows into the cavity through the plurality of water leakage holes 30 for circulation; after leaching is completed, the material tank 3 is lifted by the row hoist mechanism and moved away from the spraying area; and the above process is repeated, and the remaining material tanks 3 filled with laterite nickel ore are transported to the spraying area by the row hoist mechanism and detachably connected with the leaching tank 1, to ensure the continuity of the laterite nickel ore leaching; the laterite nickel ore that has completed leaching can be directly poured out from the material tank 3, facilitating the replacement of the laterite nickel ore in the material tank 3.

[0041] The specific embodiments of the above application do not constitute a limitation on the scope of protection of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A laterite nickel ore leaching device, comprising a leaching tank, a spraying mechanism and a material holding tank, a cavity with an open top is arranged in the leaching tank, and a spraying area is arranged on the top of the leaching tank, and the cavity can hold liquid; characterized in that, The spraying mechanism comprises a moving part and a spraying part, the moving part is movably connected with the top end of the leaching tank, and the moving part can reciprocate in the spraying area, and the spraying part is connected with the moving part. The material holding tank is provided with a cavity with an open top end, a plurality of water leakage holes are formed in the material holding tank and communicate with the cavity, the material holding tank is detachably connected with the leaching tank and located in the spraying area, and the cavity is used to fill the mineral materials.

2. A laterite nickel ore leaching plant according to claim 1, characterised in that, The moving part comprises a mounting frame, two reversible motors, two gears and two racks, the mounting frame is slidably connected with the opposite sides of the leaching tank, the two reversible motors are connected with the mounting frame, the output ends of the reversible motors are fixedly connected with the two gears respectively, the two racks are arranged on the opposite sides of the leaching tank respectively, and the two racks are engaged with the two gears respectively.

3. A laterite nickel ore leaching plant according to claim 2, characterised in that, The mounting frame comprises two vertical plates and a horizontal plate, the horizontal plate is fixedly arranged between the two vertical plates, the two vertical plates are slidably connected with the opposite sides of the leaching tank respectively, and the two reversible motors are fixedly connected with the two vertical plates respectively.

4. A laterite nickel ore leaching plant according to claim 3, characterised in that, The spraying part comprises a liquid guide pipe fixedly arranged between the two vertical plates, and the liquid guide pipe is arranged along the width direction of the leaching tank, and a plurality of spraying heads are arranged on the liquid guide pipe at intervals.

5. A laterite nickel ore leaching plant according to claim 1, characterized in that, The spraying mechanism further comprises a liquid pumping part, and the spraying part communicates with the cavity through the liquid pumping part.

6. A laterite nickel ore leaching plant according to claim 5, characterised in that, A filter plate is fixedly arranged in the leaching tank, the filter plate divides the cavity into a placing cavity and a clean water cavity, the placing cavity corresponds to the spraying area, and the spraying part communicates with the clean water cavity through the liquid pumping part.

7. A laterite nickel ore leaching plant according to claim 1, characterized in that, The plurality of water leakage holes are arranged at the lower end of the material holding tank, and there is a height difference between the lower end of the material holding tank and the inner bottom wall of the cavity.

8. A laterite nickel ore leaching plant according to claim 7, characterised in that, The material holding tank is formed by connecting a plurality of conical hoppers, and the lower end of each of the plurality of conical hoppers is provided with a plurality of water leakage holes.

9. A laterite nickel ore leaching plant according to claim 1, characterized in that, The top of the material holding tank is provided with a plurality of lifting rings.

10. A laterite nickel ore leaching plant according to claim 1, characterized in that, The bottom end of the leaching tank is provided with a liquid discharge pipe communicating with the cavity, and the liquid discharge pipe is provided with a control valve.

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