A laterite nickel ore layer washing line

Abstract

The present application discloses a laterite nickel ore washing line including washing equipment and dressing equipment along a stepped mountain, which includes a chain plate feeder, a cylindrical washing machine and a double spiral scrubbing machine; the winding device, a spiral chute, a shaker, and a magnetic separator along the stepped mountain; wherein the slurry outlet of the double spiral scrubbing machine is connected to the cyclone. This application depends on the ladder mountain construction, makes the pulp between the pulp in gravity by the above equipment below the equipment natural flow, avoid the extra pulp conveying power source, reduce the energy consumption of the pulp drive, thus reduce the construction cost and the late operating cost, at the same time, through the ladder of mountain to carry the equipment, reduce the cost of equipment frame, thus reduce the overall construction cost.

Description

[0001] Description

[0002] A LATERITE NICKEL ORE LAYER WASHING LINE

[0003] FILED OF DISCLOSURE

[0004] This application relates to the technical field of laterite nickel processing equipment, specifically relates to a laterite nickel ore washing line.

[0005] BACKGROUND

[0006] Laterite nickel ore is a polymer of loose clay oxides containing nickel, iron, magnesium, cobalt, silicon, aluminum and other elements, formed by long-term weathering, leaching, immersion and alteration in tropical or subtropical areas. Due to the serious oxidation of + 3 valence state, the overall appearance of its iron is reddish brown, so it is named laterite nickel ore. Different from nickel sulfide ore, laterite nickel ore is a difficult to select type of oxidized ore, which cannot be effectively enriched in nickel by mineral dressing method, so it should be washed.

[0007] Patent CN111545341A A laterite nickel ore chromium removal process, Including SI, ore washing process and S2, chromium selection process, A raw pulp with a size of-1.5mm, Then it is graded to form a coarse raw pulp with a particle size of + 0.058mm to-1.5mm, The crude raw pulp enters the spiral chute to obtain the tailings and concentrate, The concentrate enters a section of shaker for screening to obtain a section of shaker tailings and a section of shaker concentrate, A stage of shaker concentrate into the second stage shaker for reselection to obtain the two stage shaker tailings, the second stage shaker middle ore and the second stage shaker concentrate; After grinding and return to the second stage shaker, One section of shaker tailings and two sections of shaker tailings are grinding after magnetic separation.

[0008] However, the pulp between each equipment of the existing technology is mostly transported by power sources, resulting in large energy consumption and high production cost. SUMMARY

[0009] The purpose of this application is to overcome the above technical deficiencies and propose a laterite nickel ore layer washing line to solve the technical problems of the existing technology, resulting in high energy consumption and high production cost .

[0010] To achieve the above technical obj ectives , this application adopts the following technical solutions :

[0011] The present application provides a laterite nickel ore layer washing line , including ore washing equipment and ore dressing equipment arranged in a step level along a stepped mountain;

[0012] The ore washing equipment includes a chain plate feeder, a cylindrical ore washing machine and a double spiral scrubbing machine connected from top to bottom along a stepped mountain;

[0013] The dressing equipment includes a cyclone , spiral chute , shaker and magnetic separator connected from top to bottom along a stepped mountain;

[0014] Wherein the slurry outlet of the double screw scrub is connected to the hydrocyclone .

[0015] In some embodiments , the washing equipment and the dressing equipment are arranged from top to bottom .

[0016] In some embodiments , the washing equipment and the dressing equipment are arranged in the mountain, and the slurry outlet of the double spiral scrub is connected to the cyclone through a feed pump .

[0017] In some embodiments , the cylinder washer has a first inlet , a first outlet , and a second outlet for discharging large-si zed gravel , the second outlet for discharging pulp, and the second outlet is connected to the feed end of the double screw washer .

[0018] In some embodiments , the laterite nickel ore washing line further includes a first conveyor belt connected to the first outlet .

[0019] In some embodiments , the double screw scrub has a second inlet , third outlet and fourth outlet , the second inlet is connected to the cylinder ore washer, the third outlet for discharging small si zed gravel , the fourth outlet for discharging pulp, and the fourth outlet is connected to the cyclone by a feed pump . In some embodiments , the ore washing apparatus further includes a linear vibrating screen located downstream of the double spiral scrub, the third outlet connected to the feed end of the linear vibrator, and the slurry outlet of the linear vibrator connected to the cyclone through a feed pump .

[0020] In some embodiments , the ore washing apparatus further comprises a stirring tank where the feed end is connected to the fourth outlet and the slurry outlet of the linear vibrating screen, and the discharging end of the tank is connected to the cyclone through a feed pump .

[0021] In some embodiments , the laterite nickel ore washing line further includes a second conveyor belt connected to the gravel outlet of the linear shaker .

[0022] In some embodiments , the shakers are provided with a plurality of them, successively arranged along the mountain from top to bottom .

[0023] Compared to the existing art , This application, the provided laterite nickel ore level washing line , The chain plate feeder, the cylinder ore washing machine and the double spiral scrubbing machine are arranged from top to bottom along the mountain, The cyclone , the spiral chute , the shaker and the magnetic separator are also arranged along the mountain from top to bottom, The cylinder washing machine , the double screw scrubbing machine for washing and screening the gravel , The cyclone , the spiral chute , the shaker and the magnetic concentrator for slurry reselection, Through the combination of washing equipment and dressing equipment as the presequence processing process of laterite nickel ore , And the above equipment is arranged in a ladder hierarchy along a ladder mountain, Make the slurry between the equipment flow naturally from the upper equipment to the lower equipment under the action of gravity, Avoid setting additional power sources for slurry transport , Reduces the energy consumption of the mineral pulp drive , Then reducing the operation cost of mineral processing . Moreover, through the stepped mountain to carry the above equipment , reduce the construction cost of the equipment frame , thus reducing the overall construction cost .

[0024] The above description is only an overview of the technical scheme of the present application . In order to have a clearer understanding of the technical means of the present application, it can be implemented in accordance with the contents of the description, with the best embodiment of the present application and explained in detail with the attached drawings . The speci fic embodiment of the present application is given in detail by the following embodiments and the attached drawings .

[0025] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG . 1 is a flowchart of an embodiment of the laterite nickel ore level washing line provided in the present application;

[0027] FIG . 2 is a stereoscopic diagram of the laterite nickel ore washing line in FIG . 1 ;

[0028] FIG . 3 is a flowchart of another embodiment of the laterite nickel ore washing line provided in the present application;

[0029] FIG . 4 is a stereoscopic diagram of the washing line in FIG . 3 .

[0030] Note of the attached drawings :

[0031] 1-chain plate feeder, 2-cylinder washing machine , 3-double spiral scrubbing machine , 4-linear vibrating screen, 5-mixing tank, 6-cyclone , 7-spiral chute , 8-shaker, 9-concentrate pump pool , 10- magnetic separator .

[0032] DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0033] In order to make the purpose , technical scheme and advantages of the present application more clear, the fol lowing present application is further explained in detail in combination with the attached drawings and embodiments . It should be understood that the speci fic embodiments described herein are used only to interpret the application and not to define the application .

[0034] In order to solve the existing technology of the pulp between various equipment using the transport of power source , large energy consumption, high production cost technical problems , this application provides a laterite nickel ore level washing line , equipment along the ladder mountain hierarchy, makes the pulp between the equipment under gravity by the above equipment below the equipment natural flow, avoid extra set the pulp conveying of power source , reduce the energy consumption of the pulp drive, thus reduce the operating cost of mineral processing . Moreover, through the stepped mountain to carry the above equipment , reduce the construction cost of the equipment frame , thus reducing the overall construction cost .

[0035] Referring to FIG . 1 , which is a structural diagram of the laterite nickel ore layer washing line in one embodiment of the present application .

[0036] The present application provides a laterite nickel ore washing line , including washing equipment and dressing equipment arranged in a step mountain; the washing equipment includes a chain plate feeder 1 , a cylindrical washing machine 2 , a double screw scrubbing machine 3 ; the ore forming equipment includes a cyclone 6 , a spiral groove 7 , a shaker 8 , and a magnetic separator 10 along the step mountain; wherein the slurry outlet of the double screw scrubbing machine 3 is connected to the cyclone 6 .

[0037] In this embodiment , The chain plate feeder 1 , the cylinder ore washing machine 2 , the double spiral scrubbing machine 3 are arranged along the mountain from top to bottom, The cyclone 6 , the spiral chute 7 , the shaker 8 and the magnetic separator 10 are also arranged along the mountain from top to bottom, The cylinder washer 2 and the double screw scrub 3 are used for washing and screening the gravel , The cyclone 6 , the spiral ute 7 , the shaker 8 and the magnetic separator 10 for slurry reselection, Through the combination of washing equipment and dressing equipment as the presequence processing process of laterite nickel ore , And the above equipment is arranged in a ladder hierarchy along a ladder mountain, Make the slurry between the equipment flow naturally from the upper equipment to the lower equipment under the action of gravity, Avoid setting additional power sources for slurry transport , Reduces the energy consumption of the mineral pulp drive , Then reducing the operation cost of mineral processing . Moreover, through the stepped mountain to carry the above equipment , reduce the construction cost of the equipment frame , thus reducing the overall construction cost .

[0038] At the scene of the laterite nickel ore , as the laterite nickel mining makes the pit around gradually formed ladder mountain, this application using the site ladder of the mountain washing equipment and processing equipment set on the mountain ladder, makes the equipment can from top to bottom arrangement arrangement , rely on pulp gravity equipment between pulp transportation, low cost .

[0039] It is easy to understand that in the present application, such as chain plate feeder 1 , cylinder washer 2 , double spiral scrub 3 , cyclone 6 , spiral chute 7 , shaker 8 , magnetic separator 10 .

[0040] In one embodiment , refer to FIGS . 1 to 2 , the washing equipment and the dressing equipment are arranged from top to bottom along a stepped mountain .

[0041] When the mountain is high enough, the chain plate feeder 1 , the cylinder washer 2 , the double spiral washer 3 , the hydrocyclone 6 , the spiral chute 7 , the shaker 8 and the magnetic separator 10 can be configured along the mountain from the top to the bottom, wherein the double spiral washer 3 is connected to the hydrocyclone 6 by a feed pump .

[0042] In one embodiment , refer to FIGS . 3 to 4 , the washing apparatus and the dressing equipment are arranged in a mountain, and the linear vibrating screen 4 is connected to the cyclone 6 by a feed pump .

[0043] When the mountain height is low and the steps are insuf ficient to complete the linear arrangement of the equipment , the chain plate feeder 1 , the cylinder washing machine 2 , the double spiral scrubbing machine 3 are set in one row, the cyclone 6 , the spiral chute 7 , the shaker 8 and the magnetic concentrator 10 are set in another row, the two rows of equipment are arranged on the mountain, and the slurry outlet of the double spiral washer 3 is connected to the cyclone 6 through the feed pump, conveying the pulp on the whole production line , so that the production cost can be reduced .

[0044] It is understandable that the number of the washing equipment and the dressing equipment is not limited and can be set according to the actual situation .

[0045] In one embodiment , the cylinder washer 2 has a first inlet, first outlet and second outlet for discharging large si zed gravel , the second outlet for discharging pulp, and the second outlet is connected to the feed end of the double screw washer 3 .

[0046] In one embodiment , the laterite nickel ore washing line further comprises a first conveyor belt connected to the first outlet .

[0047] In this embodiment , The cylinder ore washing machine 2 includes a sieve cartridge rotating along an axis thereof , The open opening at both ends of the sieve , One end is the first import , The other end constitutes the first outlet , The sieve hole of the circumference of the sieve constitutes the second outlet , The chain plate feeder 1 is connected to the first inlet , For the speci fic use , The dump pours the ore into the feed channel , The feed channel is connected to the feed end of the chain plate feeder 1 , The chain plate feeder 1 delivers the sieve of the cylindrical washing machine 2 , Then spray water into the sieve to clean the material , The larger gravel is unable to pass through the sieve holes of the sieve , I s transported through the first conveyor belt from the first outlet , Small particles of ore are mixed with water to form pulp at the second outlet into the double screw scrubbing machine

[0048] 3 .

[0049] In one embodiment , the double screw washer 3 has a second inlet , a third outlet and a fourth outlet , the second inlet is connected to the cylinder washer 2 , the third outlet is for discharging small si zed gravel , the fourth outlet is for discharging pulp, and the fourth outlet is connected to the cyclone 6 by a feed pump .

[0050] It should be noted that the large gravel and small gravel in this embodiment only reflect a relative concept without limiting their si ze . In principle , the si ze of large gravel is greater than that of small gravel . In practice , the above purpose of this embodiment can be achieved by setting the sieve aperture of the cylinder washing machine 2 to a set value , such as 2cm .

[0051] In one embodiment , the ore washing apparatus further comprises a linear vibrating screen 4 located downstream of the double screw washer 3 , a third outlet connected to the feed end of the linear vibrator 4 , and a slurry outlet of the linear vibrator 4 connected to the cyclone 6 through a feed pump .

[0052] In this embodiment , After the material enters the double spiral machine 3 , The pulp formed thereof has met the requirements required for subsequent mineral processing may be transported to the cyclone 6 through the feed pump through the fourth outlet , The small si ze gravel is discharged through the third outlet , Because the small si ze of the gravel surface is also attached with a small amount of slurry, In order to avoid causing waste , a linear shaker

[0053] 4 is provided downstream of the double spiral scrubbing machine 3 , The third outlet is connected to the feed end of the linear vibrator 4 , To deliver small gravel to the linear shaker 4 for cleaning and sorting, Understandably, The linear vibrating screen 4 also has two outlets , One is used to discharge the pulp for the pulp outlet , The other is used to discharge the small-si zed gravel for the gravel outlet , The slurry outlet of the linear vibrating 4 is connected to the cyclone 6 by a feed pump, Thus conveying the slurry attached to the gravel surface to the cyclone 6 , This setup can avoid waste .

[0054] In one embodiment , the ore washing apparatus further includes a stirring tank 5 with the feeding end connected to the fourth outlet and the slurry outlet of the linear vibrator 4 , and the discharging end of the stirring tank 5 connected to the cyclone 6 through a feed pump .

[0055] In this embodiment , The cylindrical ore washing machine 2 , the double spiral scrubbing machine 3 and the linear vibrating screen 4 contain a large number of fine particles in the pulp obtained from the washed laterite nickel ore , While to avoid particle deposition at the bottom of the device , Failure to the mineral processing equipment , Therefore , there is also a mixing tank 5 , The feed end of the stirring tank 5 is connected to the fourth outlet and the slurry outlet of the linear shaker 4 , The discharging end of the stirring tank 5 is connected to the cyclone 6 by a feed pump, The slurry after the double screw machine 3 and the linear vibrating screen 4 enters the stirring tank 5 , The slurry is continuously stirred by the mixing paddle in the mixing tank 5 , Can ef fectively avoid particle deposition, At the same time , since the treatment ef ficiency of the washing equipment is not consistent with that of the dressing equipment , Therefore , the stirring tank 5 may also act as a temporary storage , The slurry flow delivered to the beneficiating equipment can be controlled by the mixing tank 5 , Ensure that the slurry is transported to the ore dressing equipment at a reasonable rate .

[0056] In actual production, each equipment may be damaged or maintenance , will af fect the ef ficiency of the whole production line , and by setting the slurry, even i f some mixing tank 5 damage or maintenance , the mixing tank 5 can accommodate or transport pulp, ensure the whole production line continuous work, to avoid an equipment af fect the whole production line . Moreover, in the actual production, the washing equipment and mineral processing equipment are provided with multiple , when the mixing tank 5 can play a transitional role , that is , all the pulp of the washing equipment are transported to the mixing tank 5 , and the mixing tank 5 reasonably distributes the pulp to the mineral processing equipment , which helps to improve the processing ef ficiency of the whole production line .

[0057] It should be noted that in this application, " import" and " export" should be generally understood, for example , the second outlet of the cylinder washing machine 2 is the sieve hole of the cylinder washing machine 2 . besides , In this application, The term " connected" should also be generally understood, for instance , The second inlet of the double screw washing machine 3 and the second outlet of the cylinder washing machine 2 may be connecting the second inlet of the double screw washing machine 3 and the second outlet of the cylinder washing machine 2 via a pipe , It may also be the second inlet of the double screw washer 3 located below the second outlet of the cylinder ore washer 2 , The ore material discharged from the second outlet of the cylinder washing machine 2 can flow directly into the second inlet of the double screw washing machine 3 , This all indicates that the inlet of the double screw scrubbing machine 3 is connected to the second outlet of the cylinder washing machine 2 , And not limited to having to be connected through the actual pipeline .

[0058] In one embodiment , the aker 8 is provided with a plurality of the kers 8 arranged along the mountain from top to bottom .

[0059] In this embodiment , the plurality of rollers 8 are one stage and two stages respectively, and the two stages are arranged in turn along the slurry flow direction, so that the slurry is further separated so that the particle si ze of the pulp conforms to the standard of the subsequent process .

[0060] In this embodiment , the chain plate feeder 1 is arranged near the top of the mountain and connected to the feed channel on the mountain, and the chain plate feeder 1 is connected to the first inlet to transport ore to the cylindrical washer 2 through the chain plate feeder 1 . Among them, the feed channel can be used for transport vehicles to directly pour laterite nickel ore into it . It should be noted that the above equipment is the existing technology, and the speci fic structure and working principle will not be described too much here .

[0061] In this embodiment , a concentrate pump cell 9 is also provided between the shaker 8 and the magnetic separator 10 .

[0062] In order to better understand the present application, the technical scheme of this application is described in detail below in combination with FIGS . 1 to 4 :

[0063] The chain plate feeder 1 , the cylinder washing machine 2 , the double screw washer 3 , the linear vibrating screen 4 , the stirring tank 5 , the hydrocyclone 6 , the spiral chute 7 , the shaker 8 , the concentrate pump tank 9 and the magnetic concentrator 10 are successively connected, That is , the chain plate feed 1 is connected to the first inlet , The first outlet is connected to the first conveyor belt , The second outlet is connected to the second inlet , The third outlet is connected to the feed end of the linear vibrator 4 , The fourth outlet is connected to the feed end of the mixing tank 5 , The gravel outlet of the linear vibrating screen 4 is connected to the second conveyor belt , The slurry outlet of the linear vibrating 4 is connected to the feed end of the mixing tank 5 , The discharging end of the stirring tank 5 is connected to the cyclone 6 by a feed pump, For the speci fic use , The dump pours the ore into the feed channel , The feed channel is connected to the feed end of the chain plate feeder 1 , The chain plate feeder 1 delivers the ore from the first inlet to the cylinder washing machine 2 , The cylinder ore washing machine 2 for the ore material cleaning and preliminary screening, Wherein the large si ze gravel is discharged from the first outlet and conveyed through the first conveyor belt , The slurry is transported from the second outlet to the double screw scrub 3 , The double spiral scrubbing machine 3 for secondary cleaning and screening of the slurry, Small si ze gravel from the third outlet to the linear shaker 4 for cleaning and screening, The pulp discharged from the fourth outlet is directly transported to the mixing tank 5 , The cleaned small gravel of the linear vibrating screen 4 is transported through the second conveyor belt , The pulp is also delivered to the mixing tank 5 , The stirring tank 5 stirs the slurry to prevent particle deposition, And the slurry is successively transported to the cyclone 6 , the spiral chute 7 , a section shaker, a two-stage shaker and the magnetic concentrator 10 for sorting, Finally, the pulp required for the subsequent processing, This application relies on the construction of the existing stepped mountain around the mine , Make the slurry between the equipment flow naturally from the upper equipment to the lower equipment under the action of gravity, Avoid setting additional power sources for slurry transport , Reduces the energy consumption of the mineral pulp drive , Thus reducing the operation cost of benef iciprocessing, At the same time , through the stepped mountain to carry the above equipment , Reduce the construction cost of the equipment frame body, Thus reducing the overall construction cost .

[0064] The speci fic embodiment of the present application described above does not constitute a limitation of the scope of protection of this application . Any other corresponding changes and deformation made in accordance with the technical conception of the application shall be covered within the protection of the claims of the application .

Claims

WHAT IS CLAIMED IS1 . A laterite nickel ore layer washing line characteri zed by a step washing equipment and dressing equipment arranged in a step level along a stepped mountain;The ore washing equipment includes a chain plate feeder, a cylindrical ore washing machine and a double spiral scrubbing machine connected from top to bottom along a stepped mountain;The dressing equipment includes a cyclone , spiral chute , shaker and magnetic separator connected from top to bottom along a stepped mountain;Wherein the slurry outlet of the double screw scrub is connected to the hydrocyclone .2 . The laterite nickel ore layer washing line according to claim 1 , wherein the washing equipment and the dressing equipment are arranged from top to bottom along a stepped mountain .3 . The laterite nickel ore layer washing line of claim 1 , wherein the washing equipment and the dressing equipment are arranged in a mountain, and the slurry outlet of the double spiral scrubbing machine is connected to the cyclone by a feed pump .4 . The laterite nickel ore layer washing line of claim 1 , wherein the cylinder washing machine has a first inlet , a first outlet and a second outlet , the first outlet for discharging large si ze gravel , the second outlet for discharging pulp, and the second outlet is connected to the feed end of the double screw washer .5 . The laterite nickel ore layer washing line of claim 4 , wherein the laterite nickel ore layer washing line further comprises a first conveyor belt connected to the first outlet .6 . The laterite nickel ore washing line of claim 1 , wherein the double spiral washer has a second inlet , third outlet and fourth outlet , the second inlet is connected to the cylinder ore washer, the third outlet is discharged for small gravel , the fourth outlet is discharged for pulp, and the fourth outlet is connected to the cyclone by a feed pump .7 . The laterite nickel ore washing line of claim 6 , wherein the washing apparatus further comprises a linear vibrating screen downstream of the double spiral scrub, the third outlet is connected to the feed end of the linear vibrating screen and theslurry outlet of the linear vibrating screen is connected to the cyclone through a feed pump .8 . The laterite nickel ore layer washing line of claim 7 , wherein the washing apparatus further comprises a mixing tank in which the feed end of the mixing tank is connected to the fourth outlet and the linear vibrator, and the feed end of the mixing tank is connected to the cyclone through a feed pump .9 . The laterite nickel ore layer washing line of claim 7 , wherein the laterite nickel ore layer washing line further comprises a second conveyor belt connected to a gravel outlet of the linear shaker .10 . The laterite nickel ore layer washing line of claim 1 , wherein the rollers are provided with a plurality of them arranged along the mountain from top to bottom .

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