Laterite nickel ore leaching equipment

Abstract

The laterite-nickel ore leaching equipment comprises a leaching tank, a spraying mechanism and a material containing tank, a cavity with an opening in the top end is formed in the leaching tank, a spraying area is arranged at the top of the leaching tank, and liquid can be contained in the cavity; 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 opening in the top end is formed in the material containing groove, a plurality of water leakage holes communicated with the cavity are formed in the material containing groove, the material containing groove and the leaching groove are detachably connected and located in the spraying area, and the cavity can be used for being filled with mineral aggregate. The detachable material containing groove is adopted, and the problems that in the prior art, long time needs to be consumed for cleaning mineral aggregate, and leaching continuity cannot be guaranteed are solved.

Description

Technical Field

[0001] The present application relates to the technical field of leaching equipment, and in particular to a laterite nickel ore leaching equipment. Background Art

[0002] Laterite nickel ore is a significant nickel resource, primarily composed of silicate and oxide minerals. It typically contains high proportions of aluminum, iron, and magnesium, as well as smaller amounts of nickel and cobalt. Leaching of laterite nickel ore involves the use of chemical solvents (such as sulfuric acid or nitric acid) to dissolve valuable metals (such as nickel and cobalt) from the ore for subsequent separation and purification.

[0003] Chinese patent CN203846087U discloses a novel countercurrent leaching tank, comprising a leaching tank body, a plurality of injection pipes provided at the bottom of the leaching tank body, an overflow port provided at the top of the leaching tank body, one end of the injection pipe extending from the bottom of the leaching tank body to connect to a pressure water supply device, a plurality of water spray holes provided along the length of the injection pipe, and a flow rate regulating device provided between the injection pipe and the pressure water supply device. However, when leaching laterite nickel ore using the above scheme, after the laterite nickel ore is leached in the leaching tank body, the leachate needs to be drained and then manually entered into the leaching tank to clean the ore. This takes a long time to clean the laterite nickel ore in the leaching tank body, and the continuity of leaching cannot be guaranteed, thereby affecting production efficiency. Summary of the Invention

[0004] The purpose of this application is to overcome the above technical deficiencies and provide a laterite nickel ore leaching equipment to solve the problems in the prior art that it takes a long time to clean the ore, cannot ensure leaching continuity, and affects production efficiency.

[0005] In order to achieve the above technical objectives, this application adopts the following technical solutions:

[0006] The present application provides a laterite nickel ore leaching device, comprising a leaching tank, a spraying mechanism and a material holding tank, wherein a cavity with an open top is provided in the leaching tank, and a spraying area is provided at the top of the leaching tank, and the cavity can be filled with liquid; the spraying mechanism comprises a moving part and a spraying part, the moving part is movably connected to the top of the leaching tank, the moving part can reciprocate in the spraying area, and the spraying part is connected to the moving part; a cavity with an open top is provided in the material holding tank, and a plurality of water leakage holes connected to the cavity are opened on the material holding tank, the material holding tank can be detachably connected to the leaching tank and located in the spraying area, and the cavity can be used to fill laterite nickel ore.

[0007] In some embodiments, the moving part includes a mounting frame, two forward and reverse motors, two gears and two racks. The mounting frame is slidably connected to the opposite sides of the leaching tank. The two forward and reverse motors are connected to the mounting frame. The output ends of the forward and reverse motors are respectively fixedly connected to the two gears. The two racks are respectively arranged on the opposite sides of the leaching tank, and the two racks are respectively engaged with the two gears.

[0008] In some embodiments, the mounting frame includes two vertical plates and a horizontal plate, the horizontal plate is fixed between the two vertical plates, the two vertical plates are slidingly connected to the opposite sides of the leaching tank, and the two forward and reverse motors are fixedly connected to the two vertical plates.

[0009] In some embodiments, the spraying member includes a liquid guide tube fixed between the two vertical plates, and the liquid guide tube is arranged along the width direction of the leaching tank, and a plurality of spray heads are arranged on the liquid guide tube at intervals.

[0010] In some embodiments, the spray mechanism further includes a liquid pumping member, and the spray member is connected to the cavity via the liquid pumping member.

[0011] In some embodiments, a filter plate is fixed in the leaching tank, and the filter plate separates the cavity into a placement cavity and a clean water cavity. The placement cavity corresponds to the spraying area, and the spraying part is connected to the clean water cavity via a liquid extraction part.

[0012] In some embodiments, the plurality of leakage holes are provided at the lower end of the material holding trough, and there is a height difference between the lower end of the material holding trough and the inner bottom wall of the cavity.

[0013] In some embodiments, the material holding trough is formed by connecting multiple conical buckets, and the lower ends of the multiple conical buckets are each provided with multiple leakage holes.

[0014] In some embodiments, a plurality of lifting rings are provided on the top of the material holding trough.

[0015] In some embodiments, a drain pipe communicating with the cavity is provided at the bottom end of the leaching tank, and a control valve is provided on the drain pipe.

[0016] Compared with the prior art, the present application provides a laterite nickel ore leaching device, wherein a movable part is movably connected to the top of the leaching tank, a spraying part is connected to the movable part, and the movable part reciprocates along the length of the leaching tank, so that a spraying area is formed below the spraying part. A cavity with an opening at the top is provided in the material holding tank, and a plurality of leakage holes are provided on the material holding tank that are connected to the cavity. The material holding tank can be connected to the leaching tank and located in the spraying area. The ore in the material holding tank is sprayed by the spraying part, and the leachate can flow into the leaching tank through the leakage holes for collection. Since the leachate flows into the leaching tank through the leakage holes during the leaching process, when the ore needs to be cleaned, the ore in the material holding tank can be directly poured out, which is convenient for cleaning. At the same time, the remaining material holding tanks filled with ore can be replaced for continuous leaching, and the leaching efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a laterite nickel ore leaching device provided in an embodiment of the present application;

[0018] Figure 2 It is a structural diagram of the moving part provided in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the internal structure of a laterite nickel ore leaching device provided in an embodiment of the present application;

[0020] Figure 4 It is a schematic structural diagram of the material holding trough provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] In order to solve the technical problems in the prior art that it takes a long time to clean the ore, the continuity of leaching cannot be guaranteed, and the production efficiency is affected, the present application provides a laterite nickel ore leaching equipment, which has a detachable material holding tank connected to the leaching tank, and obtains the leachate by spraying the ore in the material holding tank. After the leaching is completed, the remaining material holding tanks filled with ore can be replaced for continuous leaching, thereby improving the leaching efficiency of the ore.

[0023] It should be noted that the laterite nickel ore leaching equipment described in the present invention is used for but not limited to leaching laterite nickel ore. For the convenience of explanation, in the present invention, only one laterite nickel ore leaching equipment is used for leaching laterite nickel ore as an example for explanation, and no details are given here.

[0024] See also Figures 1-4 , Figures 1-4In one embodiment of the present application, a laterite nickel ore leaching device is provided, comprising a leaching tank 1, a spraying mechanism 2 and a material holding tank 3. The leaching tank 1 is provided with a cavity with an open top, and a spraying area is provided at the top of the leaching tank 1, and the cavity can be filled with liquid; the spraying mechanism 2 includes a moving part 21 and a spraying part 22, the moving part 21 is movably connected to the top of the leaching tank 1, the moving part 21 can reciprocate in the spraying area, and the spraying part 22 is connected to the moving part 21; the material holding tank 3 is provided with a cavity with an open top, and a plurality of leakage holes 30 connected to the cavity are opened on the material holding tank 3. The material holding tank 3 can be detachably connected to the leaching tank 1 and is located in the spraying area, and the cavity can be used to fill laterite nickel ore.

[0025] In one embodiment, the leaching tank 1 is rectangular in shape and can be made of welded steel plates, which provides high structural strength. Specifically, a drain pipe 12 communicating with the cavity is provided at the bottom end of the leaching tank 1, and a control valve is provided on the drain pipe 12.

[0026] 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 to the moving part, and the moving part reciprocates in the spraying area, so that the spraying part can spray the liquid evenly into the material tank 3.

[0027] It should be noted that the moving member 21 is not limited to a specific structure, as long as it can reciprocate in the spraying area, and no other limitation is made here.

[0028] In this specific embodiment, the moving part 21 includes a mounting frame 211, two forward and reverse motors 212, two gears 213 and two racks 214. The mounting frame 211 is slidingly connected to the opposite sides of the leaching tank 1, and the two forward and reverse motors 212 are connected to the mounting frame 211. The output ends of the forward and reverse motors 212 are respectively fixedly connected to the two gears 213. The two racks 214 are respectively arranged on the opposite sides of the leaching tank 1, and the two racks 214 are respectively engaged with the two gears 213.

[0029] Among them, the mounting frame 211 includes two vertical plates and a horizontal plate, the horizontal plate is fixed between the two vertical plates, the two vertical plates are respectively slidably connected to the opposite sides of the leaching tank 1, and the two forward and reverse motors 212 are respectively fixedly connected to the two vertical plates. Specifically, T-shaped slide rails are provided on the opposite sides of the leaching tank 1, and T-shaped slide grooves are provided in the two vertical plates, which respectively cooperate with the two T-shaped slide rails.

[0030] In this specific embodiment, the spraying member 22 includes a liquid guide tube fixed between the two vertical plates, and the liquid guide tube is arranged along the width direction of the leaching tank 1. A plurality of spray heads are arranged on the liquid guide tube at intervals.

[0031] On the basis of the above solution, the spray mechanism 2 further includes a liquid pumping member 23 , and the spray member 22 is connected to the cavity via the liquid pumping member 23 . By circulating the liquid for utilization, the waste of water resources can be reduced.

[0032] It should be noted that the liquid extraction component 23 is a water pump, which extracts the liquid in the cavity to the spray component 22, and the process of spraying the liquid to the material tank 3 through the spray component 22 is intermittent, so as to prevent the liquid from overflowing from the top of the material tank 3.

[0033] On the basis of the above scheme, in order to avoid clogging of the spraying part, specifically, a filter plate 11 is fixedly provided in the leaching tank 1, and the filter plate 11 separates the cavity into a placement cavity and a clean water cavity. The placement cavity corresponds to the spraying area, and the spraying part 22 is connected to the clean water cavity via the liquid extraction part 23.

[0034] In one embodiment, in order to extend the time for the liquid to circulate in the material trough 3, specifically, multiple leakage holes 30 are provided at the lower end of the material trough 3, and there is a height difference between the lower end of the material trough 3 and the inner bottom wall of the cavity.

[0035] In this specific embodiment, in order to facilitate the smooth outflow of the leachate, the material holding trough 3 is formed by connecting multiple conical buckets 31, and the lower ends of the multiple conical buckets 31 are provided with multiple leakage holes 30.

[0036] It should be noted that the conical bucket 31 is wider at the top and narrower at the bottom, which can accommodate more laterite nickel ore and provide a larger contact area with the liquid, which helps to improve the leaching efficiency. Moreover, the conical design can control the flow rate of the liquid. During the leaching process, an appropriate flow rate helps to ensure that the liquid can fully contact the solid, thereby improving the extraction rate of the desired components. In addition, it can also reduce residue. The bottom of the conical bucket 31 helps to reduce residue, especially when the liquid needs to be completely emptied. The conical structure makes it easier for the liquid to concentrate at the bottom and flow out along the narrow multiple leakage holes 30, reducing the possibility of liquid being retained in the container.

[0037] On the basis of the above solution, in order to facilitate the replacement of the holding trough 3 and improve the continuity of the laterite nickel ore leaching, specifically, a plurality of lifting rings 32 are provided on the top of the holding trough 3. A lifting mechanism cooperates with the lifting rings 32 to lift the holding trough 3 away from the leaching tank 1 and to lift another holding trough 3 filled with laterite nickel ore into the spray area. It should be noted that flanges are formed on opposite sides of the top of the holding trough 3, and the two flanges can be abutted against the opposite side walls of the leaching tank 1.

[0038] In order to better understand this application, the following Figures 1-4 The technical solution of this application is described in detail:

[0039] The moving part 21 moves to one side of the spraying area, and the lifting mechanism (not shown in the figure) cooperates with the lifting ring 32 to transport the material tank 3 to the spraying area. The opposite side walls of the leaching tank 1 are in contact with 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. The moving part 21 reciprocates in the spraying area, and the liquid pumping part 23 pumps the liquid in the cavity to the spraying part 22, and the liquid is sprayed to the surface of the liquid tank 3 through the spraying part 22. In the holding tank 3, the leachate flows into the cavity through multiple leakage holes 30 for circulation; after leaching is completed, the holding tank 3 is lifted by the lifting mechanism and leaves the spraying area; and the above process is repeated, and the remaining holding tanks 3 filled with laterite nickel ore are transported to the spraying area by the lifting mechanism and detachably connected to the leaching tank 1 to ensure the continuity of the leaching of the laterite nickel ore; the laterite nickel ore that has been leached can be directly poured out from the holding tank 3, which is convenient for replacing the laterite nickel ore in the holding tank 3.

[0040] The specific implementation methods of the present application described above do not limit the scope of protection of the present application. Any other corresponding changes and modifications made based on the technical concept of the present application should be included in the scope of protection of the claims of the present application.

Claims

1. A laterite nickel ore leaching equipment, comprising a leaching tank, a spraying mechanism and a material holding tank, wherein the leaching tank is provided with a cavity with an open top, and a spraying area is provided at the top of the leaching tank, and the cavity can hold liquid; characterized in that: The spray mechanism includes a moving part and a spray part, the moving part is movably connected to the top of the leaching tank, the moving part can reciprocate in the spray area, and the spray part is connected to the moving part; A cavity with an open top is provided in the material holding trough, and a plurality of water leakage holes communicating with the cavity are opened on the material holding trough. The material holding trough is detachably connected to the leaching tank and is located in the spraying area. The cavity can be used to fill mineral materials.

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

3. A laterite nickel ore leaching equipment according to claim 2, characterized in that, The mounting frame includes two vertical plates and a horizontal plate. The horizontal plate is fixed between the two vertical plates. The two vertical plates are slidably connected to the opposite sides of the leaching tank respectively. The two forward and reverse motors are fixedly connected to the two vertical plates respectively.

4. A laterite nickel ore leaching equipment according to claim 3, characterized in that: The spraying member includes a liquid guide tube fixedly arranged between the two vertical plates, and the liquid guide tube is arranged along the width direction of the leaching tank. A plurality of spray heads are arranged on the liquid guide tube at intervals.

5. A laterite nickel ore leaching equipment according to claim 1, characterized in that: The spray mechanism further includes a liquid pumping component, and the spray component is connected to the cavity via the liquid pumping component.

6. A laterite nickel ore leaching equipment according to claim 5, characterized in that: A filter plate is fixedly provided in the leaching tank, and the filter plate separates the cavity into a placement cavity and a water purification cavity. The placement cavity corresponds to the spraying area, and the spraying part is connected to the water purification cavity via a liquid extraction part.

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

8. A laterite nickel ore leaching equipment according to claim 7, characterized in that: The material holding trough is formed by connecting a plurality of conical buckets, and the lower ends of the plurality of conical buckets are each provided with a plurality of water leakage holes.

9. A laterite nickel ore leaching equipment according to claim 1, characterized in that: A plurality of lifting rings are provided on the top of the material holding trough.

10. The laterite nickel ore leaching equipment according to claim 1, characterized in that: The bottom end of the leaching tank is provided with a drain pipe communicated with the cavity, and the drain pipe is provided with a control valve.

Images