Wear-resistant structure for a laterite nickel ore autoclave

Abstract

The present application discloses a wear-resistant structure for a laterite nickel ore autoclave, comprising an autoclave body, an insulating sleeve, and a wear-resistant plate. An accommodating cavity is formed in the autoclave body, and a first mounting slot is formed on the inner wall of the accommodating cavity. The insulating sleeve is embedded in the first mounting slot, and a second mounting slot is formed on the insulating sleeve. The wear-resistant plate is embedded in the second mounting slot, wherein the insulating sleeve blocks the flow of electrical charges between the wear-resistant plate and the autoclave body. The insulating sleeve is embedded in the first mounting slot, and the wear-resistant plate is embedded in the second mounting slot, so that the wear-resistant plate can be fixed inside the autoclave body, thereby improving the wear resistance of a stirring area by means of the wear-resistant plate. In addition, since the insulating sleeve blocks the flow of the electrical charges between the wear-resistant plate and the autoclave body, the galvanic effect between the wear-resistant plate and the autoclave body can be prevented, avoiding accelerated corrosion of the autoclave body caused by the galvanic effect from different types of metals, thereby prolonging the service life of the autoclave.

Description

TECHNICAL FIELD

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

[0002] An autoclave is a common device for high-pressure leaching of laterite nickel ore hydrometallurgy. Reactions in the autoclave are complex. The autoclave has the characteristics of high pressure, high temperature and high acidity.

[0003] At present, the stirring region of the autoclave is easy to wear, affecting the safety and use of the autoclave. The autoclave needs to be inspected and repaired periodically, resulting in high maintenance costs. Chinese Patent CN211988621U discloses a wear-resistant protective plate for an autoclave. Considering that the stirring region of the autoclave is the portion that is most easily worn, a wear-resistant plate is laid on an inner wall of an autoclave body in the stirring region, thereby improving the wear resistance of the stirring region of the autoclave. However, because the wear-resistant plate and the autoclave are made of different types of metals, the galvanic cell effect is easily generated between the wear-resistant plate and the autoclave so that the autoclave body of the autoclave is easily chemically corroded.

[0004] Therefore, the corrosion speed of the autoclave body may be accelerated due to the galvanic cell effect caused by the wear-resistant plate, which is an urgent technical problem to be solved. SUMMARY

[0005] An object of the present application is to overcome the preceding technical deficiencies and provide an autoclave wear-resistant structure of a laterite nickel ore so as to solve the technical problem in the traditional art that the corrosion speed of an autoclave body may be accelerated due to the galvanic cell effect caused by a wear-resistant plate.

[0006] To achieve the preceding object, the present application adopts the technical solutions described below.

[0007] The present application provides a wear-resistant structure for a laterite nickel ore autoclave. The wear-resistant structure for the laterite nickel ore autoclave includes an autoclave body, an insulation sleeve, and a wear-resistant plate.

[0008] The autoclave body has an accommodating cavity, and a first mounting groove is disposed on an inner wall of the accommodating cavity.

[0009] The insulation sleeve is embedded in the first mounting groove and provided with a second mounting groove.

[0010] The wear-resistant plate is embedded in the second mounting groove.

[0011] The insulation sleeve is used for blocking a charge flow between the wear-resistant plate and the autoclave body.

[0012] In some examples, the wear-resistant plate includes a plurality of unit portions sequentially spliced end to end and embedded in the second mounting groove.

[0013] In some examples, a slot is disposed on one end of a unit portion among the plurality of unit portions, a pin is disposed on the other end of the unit portion, and the pin of the unit portion is embedded in a slot of an adjacent unit portion among the plurality of unit portions.

[0014] In some examples, the unit portion has a plurality of slots, and the unit portion further has a plurality of pins corresponding to slots of the adjacent unit in a one-to-one manner.

[0015] In some examples, one of the plurality of unit portions is a titanium alloy unit portion.

[0016] In some examples, an annular groove is disposed on an outer side of the first mounting groove, and the insulation sleeve is partially embedded in the annular groove.

[0017] In some examples, a plurality of communication holes communicating with the annular groove are disposed on an outer wall of the autoclave body, bolt holes corresponding to the plurality of communication holes in a one-to-one manner are disposed on the insulation sleeve, and a bolt passes through one of the plurality of communication holes and is in bolted connection with a respective one of the bolt holes to enable the insulation sleeve and the autoclave body to be connected to each other.

[0018] In some examples, the insulation sleeve is a plastic insulation sleeve.

[0019] In some examples, an anode groove is formed in the inner wall of the accommodating cavity, the wear-resistant structure for the laterite nickel ore autoclave further comprises an anode block, and the anode block is embedded in the anode groove.

[0020] In some examples, an inner side of the wear-resistant plate has an arc surface.

[0021] According to the wear-resistant structure for the laterite nickel ore autoclave provided in the present application, the insulation sleeve is embedded in the first mounting groove, and the wear-resistant plate is embedded in the second mounting groove. In this case, the wear-resistant plate can be secured in the autoclave body. Therefore, the wear resistance of the stirring region can be improved by using the wear-resistant plate. Moreover, the insulation sleeve can block the charge flow between the wear-resistant plate and the autoclave body, thereby blocking the galvanic cell effect between the wear-resistant plate and the autoclave body, avoiding the problem that the corrosion speed of the autoclave body is accelerated due to the galvanic cell effect caused by different types of metals, and prolonging the service life of the autoclave. BRIEF DESCRIPTION OF DRAWINGS

[0022] FIG. 1 is a structural view of a wear-resistant structure for the laterite nickel ore autoclave according to an example of the present application.

[0023] FIG. 2 is a partial structure view of position A in FIG. 1.

[0024] Reference list 100 autoclave body 110    accommodating cavity 120    first mounting groove 130    annular groove 140    communication hole 150    anode groove 200     insulation sleeve 210    second mounting groove 220    bolt hole 300     wear-resistant plate 310    unit portion 311     slot 312    pin 400    anode block DETAILED DESCRIPTION

[0025] To illustrate the object, technical solutions, and advantages of the present application more clearly, the present application is further described below in detail in conjunction with the drawings and the examples. It is to be understood that the examples described herein are intended to explain and not to limit the present application.

[0026] It is to be noted that the wear-resistant structure for the laterite nickel ore autoclave according to the present application is used for, but not limited to, an autoclave of a laterite nickel ore. For ease of description, in the present application, an example in which the wear-resistant structure for the laterite nickel ore autoclave is applied to an autoclave of a laterite nickel ore is merely taken for description. The principle of the wear-resistant structure for the laterite nickel ore autoclave applied to other types of devices is substantially the same as the principle of the wear-resistant structure for the laterite nickel ore autoclave applied to an autoclave of a laterite nickel ore, which is not repeated here.

[0027] Referring to FIG. 1, FIG. 1 is a structural view of a wear-resistant structure for a laterite nickel ore autoclave according to an example of the present application. The wear-resistant structure for the laterite nickel ore autoclave includes an autoclave body 100, an insulation sleeve 200, and a wear-resistant plate 300. The autoclave body 100 has an accommodating cavity. A first mounting groove 120 is disposed on an inner wall of the accommodating cavity 110. The insulation sleeve 200 is embedded in the first mounting groove 120 and provided with a second mounting groove 200. The wear-resistant plate 300 is embedded in the second mounting groove 210. The insulation sleeve 200 is used for blocking a charge flow between the wear-resistant plate 300 and the autoclave body 100.

[0028] In this example, the insulation sleeve 200 is embedded in the first mounting groove 120, and the wear-resistant plate 300 is embedded in the second mounting groove 210. In this case, the wear-resistant plate 300 can be secured in the autoclave body 100. Therefore, the wear resistance of the stirring region can be improved by using the wear-resistant plate 300. Moreover, the insulation sleeve 200 can block the charge flow between the wear-resistant plate 300 and the autoclave body 100, thereby blocking the galvanic cell effect between the wear-resistant plate 300 and the autoclave body 100, avoiding the problem that the corrosion speed of the autoclave body 100 is accelerated due to the galvanic cell effect caused by different types of metals, and prolonging the service life of the autoclave.

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

[0030] In this example, the unit portions 310 are sequentially spliced end to end to form the wear-resistant plate 300. When the wear-resistant plate 300 is mounted, the unit portions 310 may be embedded in the second mounting groove 210 one by one. When the wear plate 300 is detached, the unit portions 310 may be detached from the second mounting groove 210 one by one.

[0031] In some examples, a slot is disposed on one end of a unit portion 310. A pin 310 is disposed on the other end of the unit portion 310. The pin 312 of the unit portion 310 is embedded in a slot 311 of an adjacent unit portion 310.

[0032] In this example, the slot and the pin are disposed on the unit portion 310. The pin 312 and the slot 311 enable adjacent unit portions 310 to match each other and be connected to each other so that the unit portions 310 may be accurately spliced together with each other.

[0033] Referring to FIG. 2, in some examples, a unit portion 310 has a plurality of slots 311. The unit portion 310 further has a plurality of pins 312 corresponding to adjacent slots 311 in a one-to-one manner.

[0034] In this example, the unit portion 310 has a plurality of slots 311 and a plurality of pins 312 so that the pins 312 are inserted in the slots 311 in a one-to-one manner, thereby enabling the unit portions 310 to be spliced with each other more stably.

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

[0036] In this example, the unit portion 310 is a titanium alloy unit portion 310 so that the unit portion 310 has sufficiently strong wear resistance.

[0037] In some examples, an annular groove 130 is disposed on an outer side of the first mounting groove 120. The insulation sleeve 200 is partially embedded in the annular groove 130.

[0038] In this example, the insulation sleeve 200 is partially embedded in the annular groove 130 so that the insulation sleeve 200 can be mounted in the autoclave body 100 more stably.

[0039] In some examples, a plurality of communication holes 140 communicating with the annular groove 130 are disposed on an outer wall of the autoclave body 100. Bolt holes 220 corresponding to the communication holes 140 in a one-to-one manner are disposed on the insulation sleeve 200. A bolt passes through a communication hole 140 and is in bolted connection with a respective bolt hole 220 to enable the insulation sleeve 200 and the autoclave body 100 to be connected to each other.

[0040] In this example, the bolt passes through the communication hole 140 and is in bolted connection with the respective bolt hole 220 so that the insulation sleeve 200 and the autoclave body 100 are connected to each other, thereby preventing the insulation sleeve 200 from being disengaged from the annular groove 130 and the first mounting groove 120.

[0041] In some examples, the insulation sleeve 200 is a plastic insulation sleeve 200.

[0042] In this example, the insulation sleeve 200 is made of a plastic material so that the insulation sleeve 200 has sufficient structural strength and corrosion resistance.

[0043] In some examples, an anode groove 150 is formed in the inner wall of the accommodating cavity 110. The wear-resistant structure for the laterite nickel ore autoclave further includes an anode block 400. The anode block 400 is embedded in the anode groove 150.

[0044] In this example, the anode block 400 is made of metal with strong reducibility. The anode block 400 is embedded in the anode groove 150 so that the anode block 400 is in direct contact with the autoclave body 100. The anode block 400 is more easily corroded. Negative charges may flow to the autoclave body 100, thereby playing a role in protecting the autoclave body 100. The corrosion speed of the autoclave body 100 can be reduced by sacrificing the anode block 400.

[0045] In some examples, an inner side of the wear-resistant plate 300 has an arc surface.

[0046] In this example, the inner side of the wear-resistant plate 300 has an arc surface so that the wear-resistant plate 300 may fit an outer edge of a stirring blade.

[0047] In order to better understand the present invention, the technical solutions of the present application are described in detail hereinafter in conjunction with FIGS. 1 and 2.

[0048] According to the wear-resistant structure for the laterite nickel ore autoclave provided in the present application, the insulation sleeve 200 is partially embedded in the annular groove 130 so that the insulation sleeve 200 can be mounted in the autoclave body 100 more stably. The unit portions 310 are sequentially spliced end to end to form the wear-resistant plate 300. Therefore, when the wear-resistant plate 300 is mounted, the unit portions 310 may be embedded in the second mounting groove 210 one by one. In this case, the wear-resistant plate 300 can be secured in the autoclave body 100. Therefore, the wear resistance of the stirring region can be improved by using the wear-resistant plate 300. Additionally, the insulation sleeve 200 can block the charge flow between the wear-resistant plate 300 and the autoclave body 100, thereby blocking the galvanic cell effect between the wear-resistant plate 300 and the autoclave body 100, avoiding the problem that the corrosion speed of the autoclave body is accelerated due to the galvanic cell effect caused by different types of metals, and prolonging the service life of the autoclave.

[0049] The preceding embodiments of the present application are not intended to limit the scope 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 the claims of the present application.

Claims

1. A wear-resistant structure for a laterite nickel ore autoclave, comprising:an autoclave body having an accommodating cavity, wherein a first mounting groove is disposed on an inner wall of the accommodating cavity;an insulation sleeve embedded in the first mounting groove and provided with a second mounting groove; anda wear-resistant plate embedded in the second mounting groove;wherein the insulation sleeve is used for blocking a charge flow between the wear-resistant plate and the autoclave body.

2. The wear-resistant structure for the laterite nickel ore autoclave according to claim 1, wherein the wear-resistant plate comprises a plurality of unit portions sequentially spliced end to end and embedded in the second mounting groove.

3. The wear-resistant structure for the laterite nickel ore autoclave according to claim 2, wherein a slot is disposed on one end of a unit portion among the plurality of unit portions, a pin is disposed on an other end of the unit portion, and the pin of the unit portion is embedded in a slot of an adjacent unit portion among the plurality of unit portions.

4. The wear-resistant structure for the laterite nickel ore autoclave according to claim 3, wherein the unit portion has a plurality of slots, and the unit portion further has a plurality of pins corresponding to slots of the adjacent unit in a one-to-one manner.

5. The wear-resistant structure for the laterite nickel ore autoclave according to claim 2, wherein one of the plurality of unit portions is a titanium alloy unit portion.

6. The wear-resistant structure for the laterite nickel ore autoclave according to claim 1, wherein an annular groove is disposed on an outer side of the first mounting groove, and the insulation sleeve is partially embedded in the annular groove.

7. The wear-resistant structure for the laterite nickel ore autoclave according to claim 6, wherein a plurality of communication holes communicating with the annular groove are disposed on an outer wall of the autoclave body, bolt holes corresponding to the plurality of communication holes in a one-to-one manner are disposed on the insulation sleeve, and a bolt passes through one of the plurality of communication holes and is in bolted connection with a respective one of the bolt holes to enable the insulation sleeve and the autoclave body to be connected to each other.

8. The wear-resistant structure for the laterite nickel ore autoclave according to claim 1, wherein the insulation sleeve is a plastic insulation sleeve.

9. The wear-resistant structure for the laterite nickel ore autoclave according to claim 1, wherein an anode groove is formed in the inner wall of the accommodating cavity, the wear-resistant structure for the laterite nickel ore autoclave further comprises an anode block, and the anode block is embedded in the anode groove.

10. The wear-resistant structure for the laterite nickel ore autoclave according to claim 1, wherein an inner side of the wear-resistant plate has an arc surface.

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