Wear-resistant structure of laterite-nickel ore autoclave

Abstract

The utility model discloses a laterite-nickel ore autoclave wear-resistant structure which comprises an autoclave body, an insulating sleeve and a wear-resistant plate, an accommodating cavity is formed in the autoclave body, and a first mounting groove is formed in the inner wall of the accommodating cavity. The insulation sleeve is embedded in the first installation groove, and the insulation sleeve is provided with a second installation groove. The wear-resisting plate is embedded in the second mounting groove, and the insulating sleeve prevents charge flow between the wear-resisting plate and the kettle body. The insulating sleeve is embedded in the first mounting groove, and the wear-resisting plate is embedded in the second mounting groove, so that the wear-resisting plate can be fixed in the kettle body, and the wear resistance of a stirring area can be improved by utilizing the wear-resisting plate; meanwhile, as the insulation sleeve blocks the charge flow between the wear-resisting plate and the kettle body, the primary battery effect between the wear-resisting plate and the kettle body can be blocked, the corrosion speed of the kettle body is prevented from being accelerated by the primary battery effect caused by different types of metal, and the service life of the high-pressure kettle is prolonged.

Description

Technical Field

[0001] The present application relates to the field of laterite nickel ore smelting, and in particular to a wear-resistant structure of a laterite nickel ore autoclave. Background Art

[0002] Autoclaves are commonly used equipment for high-pressure leaching in the hydrometallurgical smelting of laterite nickel ore. The reactions inside the autoclave are complex and characterized by high pressure, high temperature, and high acidity.

[0003] Currently, the stirring area of ​​an autoclave is susceptible to wear, which affects the safety and usability of the autoclave and requires regular inspection and repair, resulting in high maintenance costs. Chinese patent CN211988621U discloses a wear-resistant protective plate for an autoclave. Because the stirring area of ​​the autoclave is the most susceptible to wear, a wear-resistant plate is laid on the inner wall of the autoclave in this area to improve the wear resistance of the autoclave's stirring area. However, due to the different metal types of the wear-resistant plate and the autoclave, a galvanic effect easily occurs between the two, making the autoclave body susceptible to chemical corrosion.

[0004] Therefore, the galvanic effect caused by the wear-resistant plate will accelerate the corrosion rate of the kettle body, which is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of this application is to overcome the above technical deficiencies and propose a wear-resistant structure for a laterite nickel ore autoclave to solve the technical problem in traditional technology that the galvanic effect caused by the wear-resistant plate will accelerate the corrosion rate of the autoclave body.

[0006] In order to achieve the above technical objectives, this application adopts the following technical solutions:

[0007] The present application provides a laterite nickel ore autoclave wear-resistant structure, which includes:

[0008] The kettle body has a receiving cavity therein, and the inner wall of the receiving cavity is provided with a first mounting groove;

[0009] an insulating sleeve, wherein the insulating sleeve is embedded in the first mounting groove and has a second mounting groove; and

[0010] a wear-resistant plate, the wear-resistant plate being embedded in the second mounting groove;

[0011] The insulating sleeve is used to block the flow of electric charges between the wear-resistant plate and the kettle body.

[0012] In some embodiments, the wear-resistant plate includes a plurality of unit parts, and the plurality of unit parts are spliced ​​end to end in sequence and embedded in the second installation groove.

[0013] In some embodiments, a slot is provided at one end of the unit portion, and a latch is provided at the other end of the unit portion, and the latch of the unit portion is embedded in the slot of the adjacent unit portion.

[0014] In some embodiments, the unit portion has a plurality of the slots, and the unit portion further has a plurality of latches corresponding one-to-one to the slots of a plurality of adjacent unit portions.

[0015] In some embodiments, the unit portion is a titanium alloy unit portion.

[0016] In some embodiments, an annular groove is provided on the outer side of the first mounting groove, and the insulating sleeve is partially embedded in the annular groove.

[0017] In some embodiments, the outer wall of the kettle body is provided with several connecting holes connected to the annular groove, and the insulating sleeve is provided with screw holes corresponding one to one to the several connecting holes. Bolts are passed through the connecting holes and screwed into the screw holes to connect the insulating sleeve and the kettle body.

[0018] In some embodiments, the insulating sleeve is a plastic insulating sleeve.

[0019] In some embodiments, an anode tank is provided on the inner wall of the accommodating cavity, and the laterite nickel ore autoclave wear-resistant structure further includes an anode block, which is embedded in the anode tank.

[0020] In some embodiments, the inner side of the wear-resistant plate is a curved surface.

[0021] The wear-resistant structure of the laterite nickel ore autoclave provided by the present application embeds the insulating sleeve in the first mounting groove and embeds the wear-resistant plate in the second mounting groove, so that the wear-resistant plate can be fixed inside the autoclave body, thereby utilizing the wear-resistant plate to improve the wear resistance of the stirring area; at the same time, since the insulating sleeve can block the flow of charge between the wear-resistant plate and the autoclave body, the galvanic cell effect between the wear-resistant plate and the autoclave body can be blocked, thereby avoiding the problem of accelerated corrosion of the autoclave body caused by the galvanic cell effect caused by different types of metals, thereby extending the service life of the autoclave. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the wear-resistant structure of a laterite nickel ore autoclave provided in an embodiment of the present application;

[0023] Figure 2 yes Figure 1 Schematic diagram of the local structure at point A in the figure.

[0024] Explanation of the accompanying drawings: kettle body 100, accommodating cavity 110, first mounting groove 120, annular groove 130, connecting hole 140, anode tank 150, insulating sleeve 200, second mounting groove 210, screw hole 220, wear-resistant plate 300, unit part 310, slot 311, pin 312, anode block 400. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below 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.

[0026] It should be noted that the wear-resistant structure of the laterite nickel ore autoclave described in the present application is used for but not limited to laterite nickel ore autoclaves, etc. For the convenience of explanation, in this application, only the application of the wear-resistant structure of the laterite nickel ore autoclave to the laterite nickel ore autoclave is taken as an example for explanation. The principle of applying the wear-resistant structure of the laterite nickel ore autoclave to other types of equipment is essentially the same as that applied to the laterite nickel ore autoclave, and will not be described in detail here.

[0027] See also Figure 1 , Figure 1 This is a schematic diagram of the wear-resistant structure of a laterite nickel autoclave in one embodiment of the present application. The wear-resistant structure includes an autoclave body 100, an insulating sleeve 200, and a wear-resistant plate 300. The autoclave body 100 has a receiving chamber 110, and a first mounting groove 120 is defined within the inner wall of the receiving chamber 110. The insulating sleeve 200 is embedded in the first mounting groove 120 and further defines a second mounting groove 210. The wear-resistant plate 300 is embedded in the second mounting groove 210. The insulating sleeve 200 is used to block the flow of charge between the wear-resistant plate 300 and the autoclave body 100.

[0028] In this embodiment, the insulating sleeve 200 is embedded in the first mounting groove 120, and the wear-resistant plate 300 is embedded in the second mounting groove 210, so that the wear-resistant plate 300 can be fixed inside the kettle body 100, thereby the wear-resistant plate 300 can be used to improve the wear resistance of the stirring area; at the same time, since the insulating sleeve 200 can block the flow of charge between the wear-resistant plate 300 and the kettle body 100, the galvanic cell effect between the wear-resistant plate 300 and the kettle body 100 can be blocked, thereby avoiding the problem of accelerated corrosion of the kettle body 100 caused by the galvanic cell effect caused by different types of metals, thereby extending the service life of the high-pressure kettle.

[0029] In some embodiments, the wear-resistant plate 300 includes a plurality of unit portions 310 , which are sequentially spliced ​​end to end and embedded in the second installation groove 210 .

[0030] In this embodiment, the wear plate 300 is composed of a plurality of unit parts 310 connected end to end. When installing the wear plate 300, the unit parts 310 can be inserted into the second installation groove 210 one by one. When removing the wear plate 300, the unit parts 310 can be removed from the second installation groove 210 one by one.

[0031] In some embodiments, a slot 311 is defined at one end of the unit portion 310 , and a latch 312 is defined at the other end of the unit portion 310 . The latch 312 of one unit portion 310 is embedded in the slot 311 of an adjacent unit portion 310 .

[0032] In this embodiment, by providing latches and slots on the unit parts 310 , adjacent unit parts 310 are connected by using the latches 312 and slots 311 , so that the unit parts 310 can be precisely spliced ​​together.

[0033] See Figure 2 In some embodiments, the unit portion 310 has a plurality of slots 311 , and the unit portion 310 further has a plurality of latches 312 corresponding one-to-one to the plurality of adjacent slots 311 .

[0034] In this embodiment, since the unit portion 310 has a plurality of slots 311 and a plurality of latches 312 , the plurality of latches 312 are inserted into the slots 311 in a one-to-one correspondence, thereby enabling the unit portions 310 to be more stably connected to each other.

[0035] In some embodiments, the unit portion 310 is a titanium alloy unit portion 310 .

[0036] In this embodiment, since the unit portion 310 is a titanium alloy unit portion 310 , the unit portion 310 can have sufficiently strong wear resistance.

[0037] In some embodiments, an annular groove 130 is defined outside the first installation groove 120 , and the insulating sleeve 200 is partially embedded in the annular groove 130 .

[0038] In this embodiment, the insulating sleeve 200 is partially embedded in the annular groove 130 , so that the insulating sleeve 200 can be more stably installed in the kettle body 100 .

[0039] In some embodiments, the outer wall of the kettle body 100 is provided with a plurality of connecting holes 140 connected to the annular groove 130, and the insulating sleeve 200 is provided with screw holes 220 corresponding one-to-one to the plurality of connecting holes 140. Bolts are passed through the connecting holes 140 and screwed into the screw holes 220 to connect the insulating sleeve 200 and the kettle body 100 to each other.

[0040] In this embodiment, the insulating sleeve 200 is connected to the kettle body 100 by passing a bolt through the communicating hole 140 and screwing into the screw hole 220 , thereby preventing the insulating sleeve 200 from being separated from the annular groove 130 and the first mounting groove 120 .

[0041] In some embodiments, the insulating sleeve 200 is a plastic insulating sleeve 200 .

[0042] In this embodiment, by setting the insulating sleeve 200 to be a plastic material, the insulating sleeve 200 has sufficient structural strength and corrosion resistance.

[0043] In some embodiments, an anode tank 150 is formed on the inner wall of the accommodating chamber 110 , and the laterite nickel ore autoclave wear-resistant structure further includes an anode block 400 , which is embedded in the anode tank 150 .

[0044] In this embodiment, the anode block 400 is made of a metal with a strong reducing property and is embedded in the anode tank 150, so that the anode block 400 is in direct contact with the kettle body 100. This makes the anode block 400 more susceptible to corrosion, while negative charges flow toward the kettle body 100, thereby protecting the kettle body 100. The sacrificial anode block 400 can slow down the corrosion rate of the kettle body 100.

[0045] In some embodiments, the inner side of the wear-resistant plate 300 is a curved surface.

[0046] In this embodiment, since the inner side of the wear-resistant plate 300 is a curved surface, the wear-resistant plate 300 can fit the outer edge of the stirring blade.

[0047] In order to better understand the present invention, the following Figures 1 to 2 The technical solution of this application is described in detail:

[0048] The wear-resistant structure of the laterite nickel ore autoclave provided in this application, by partially embedding the insulating sleeve 200 in the annular groove 130, allows the insulating sleeve 200 to be more stably installed in the autoclave body 100. The wear-resistant plate 300 is composed of a plurality of unit parts 310 spliced ​​end to end. Therefore, when installing the wear-resistant plate 300, the unit parts 310 can be embedded one by one into the second installation groove 210, so that the wear-resistant plate 300 can be fixed inside the autoclave body 100, thereby utilizing the wear-resistant plate 300 to improve the wear resistance of the stirring area. In addition, because the insulating sleeve 200 can block the flow of charge between the wear-resistant plate 300 and the autoclave body 100, it can block the galvanic effect between the wear-resistant plate 300 and the autoclave body 100, avoiding the problem of accelerated corrosion of the autoclave body caused by the galvanic effect caused by different types of metals, thereby extending the service life of the autoclave.

[0049] 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 wear-resistant structure for a laterite nickel ore autoclave, characterized in that: include: The kettle body has a receiving cavity therein, and the inner wall of the receiving cavity is provided with a first mounting groove; an insulating sleeve, wherein the insulating sleeve is embedded in the first mounting groove and has a second mounting groove; and a wear-resistant plate, the wear-resistant plate being embedded in the second mounting groove; The insulating sleeve is used to block the flow of electric charges between the wear-resistant plate and the kettle body.

2. The wear-resistant structure of the laterite nickel ore autoclave according to claim 1, characterized in that: The wear-resistant plate includes a plurality of unit parts, and the plurality of unit parts are sequentially spliced ​​end to end and embedded in the second installation groove.

3. The wear-resistant structure of laterite nickel ore autoclave according to claim 2, characterized in that: A slot is provided at one end of the unit part, and a latch is provided at the other end of the unit part. The latch of the unit part is embedded in the slot of the adjacent unit part.

4. The wear-resistant structure of laterite nickel ore autoclave according to claim 3, characterized in that: The unit portion has a plurality of slots, and the unit portion also has a plurality of latches corresponding to the slots of a plurality of adjacent unit portions.

5. The wear-resistant structure of laterite nickel ore autoclave according to claim 2, characterized in that: The unit portion is a titanium alloy unit portion.

6. The wear-resistant structure of laterite nickel ore autoclave according to claim 1, characterized in that: An annular groove is provided on the outer side of the first installation groove, and the insulating sleeve is partially embedded in the annular groove.

7. The wear-resistant structure of the laterite nickel ore autoclave according to claim 6, characterized in that: The outer wall of the kettle body is provided with a plurality of connecting holes connected to the annular groove, and the insulating sleeve is provided with screw holes corresponding to the plurality of connecting holes one by one. Bolts are passed through the connecting holes and screwed into the screw holes to connect the insulating sleeve and the kettle body.

8. The wear-resistant structure of laterite nickel ore autoclave according to claim 1, characterized in that: The insulating sleeve is a plastic insulating sleeve.

9. The wear-resistant structure of laterite nickel ore autoclave according to claim 1, characterized in that: An anode groove is provided on the inner wall of the accommodating cavity, and the laterite nickel ore autoclave wear-resistant structure further comprises an anode block, which is embedded in the anode groove.

10. The wear-resistant structure of laterite nickel ore autoclave according to claim 1, characterized in that: The inner side of the wear-resistant plate is a cambered surface.

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