CN115235234A - Special rotary kiln for smelting laterite-nickel ore - Google Patents
Special rotary kiln for smelting laterite-nickel ore Download PDFInfo
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- CN115235234A CN115235234A CN202210810228.1A CN202210810228A CN115235234A CN 115235234 A CN115235234 A CN 115235234A CN 202210810228 A CN202210810228 A CN 202210810228A CN 115235234 A CN115235234 A CN 115235234A
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- feeding
- rotary kiln
- crushing
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- cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/32—Arrangement of devices for charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention is suitable for the field of production of nickel-iron ore, and provides a special rotary kiln for smelting laterite-nickel ore, which comprises the following components: the rotary kiln comprises a rotary kiln barrel, a rotary kiln barrel and a feeding barrel, wherein the rotary kiln barrel is obliquely and rotatably arranged on a base, and the feeding barrel is rotatably connected to the top end of the rotary kiln barrel in the oblique direction; the crushing device comprises a base, a box body fixedly arranged on the base, a feeding cavity and a crushing cavity, wherein the box body is respectively provided with the feeding cavity and the crushing cavity; and the feeding part is used for conveying the nickel ore materials in the feeding cavity into the feeding channel, and the feeding channel is communicated with the inner cavity of the rotary kiln cylinder. The rotary kiln can prevent the accumulation of feeding materials when the materials are added into the cylinder of the rotary kiln, and can solve the problems that the accumulation of nickel ore materials in the rotary kiln is easy to cause in the traditional rotary kiln, and the quality and the efficiency of processing and reducing nickel ore are reduced.
Description
Technical Field
The invention belongs to the field of production of nickel-iron ores, and particularly relates to a special rotary kiln for smelting laterite-nickel ores.
Background
At present, people can produce nickel raw materials by smelting laterite-nickel ore, the nickel raw materials can be processed and utilized by various industries, and when the laterite-nickel ore is processed, a rotary kiln is generally used for smelting the laterite-nickel ore.
As disclosed in the patent document with publication number CN215328313U a special rotary kiln for smelting laterite-nickel ore, including the rotary kiln, rotary kiln top outer wall is equipped with the smoking pipe, and smoking pipe one side outer wall is equipped with the rose box, the rose box inner wall is equipped with the baffle, and is equipped with the filter chamber respectively and collects the chamber on the baffle, filter chamber both ends inner wall all is equipped with two and slides the groove, and slides the inslot wall and have first filter screen and second filter screen respectively sliding connection, all be equipped with a plurality of coupling spring between first filter screen and second filter screen and the groove one side outer wall that slides, filter chamber middle part sliding connection has the removal post, and removes post one end and be equipped with two respectively and connect the rope, two connect rope one end respectively with first filter screen and second filter screen one side outer wall connection.
For another example, patent document No. CN113073164A discloses a rotary kiln for reduction of nickel iron ore, which includes a cylinder and a driving support device, wherein the cylinder is sequentially provided with a preheating section, a drying and dehydrating section, a reducing section, a smelting section and a cooling section along the direction of movement of the material, the reducing section is provided with an air inlet, and the drying and dehydrating section and/or the preheating section is provided with an air outlet.
Also, for example, patent document CN106480327A discloses a device and method for reducing laterite-nickel ore by using an electrically heated rotary kiln. The device comprises a rotary kiln barrel, a kiln tail nitrogen charging and receiving mechanism and a kiln head sealing mechanism, wherein the kiln tail nitrogen charging and receiving mechanism comprises a nitrogen charging pipe, a sealing tank and a material receiving barrel, and the kiln head sealing mechanism comprises a feeding hopper, a reducing pipe, a sealing assembly and a sealing shell. The scheme aims at solving the problems that air enters the kiln to cause secondary oxidation of the metalized materials and coke combustion in the reduction process of reducing the laterite-nickel ore by using the rotary kiln due to poor tightness, provides measures of adopting kiln head sealing and kiln tail nitrogen filling, and effectively solves the problems of secondary oxidation of the metalized materials and coke combustion in the kiln due to poor tightness.
However, in the process of smelting nickel ore, the rotary kiln provided by the scheme adopts the manner of directly adding the nickel ore through the feeding cylinder, so that the adding amount of the nickel ore material is difficult to control, the nickel ore material is easy to accumulate in the rotary kiln during feeding, and the quality and efficiency of processing and reducing the nickel ore are reduced.
Disclosure of Invention
The invention aims to provide a special rotary kiln for smelting laterite-nickel ore, and aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions.
A special rotary kiln for smelting laterite-nickel ore comprises:
the rotary kiln comprises a rotary kiln barrel, a rotary kiln barrel and a rotary kiln, wherein the rotary kiln barrel is obliquely and rotatably arranged on a base, a material receiving box is rotatably connected and arranged at the bottom end of the rotary kiln barrel in the oblique direction, and a material feeding barrel is rotatably connected and arranged at the top end of the rotary kiln barrel in the oblique direction;
the box body is fixedly arranged on the base, and is provided with a feeding cavity and a crushing cavity respectively, wherein the bottom end of the feeding cavity is communicated with the bottom end of the crushing cavity through a connecting channel, and the connecting channel is in an inclined state, so that nickel mineral materials which are crushed in the crushing cavity enter the feeding cavity;
be used for with the nickel mineral material in the feed cavity sends the feed portion in the feedstock channel, feedstock channel with communicate with each other between the rotary kiln barrel inner chamber for the nickel mineral material that feedstock channel was sent to in feedstock channel can further the landing enter into the rotary kiln barrel, and it can be understood that, the metallization material that forms after carrying out abundant reduction reaction in the rotary kiln barrel is finally collected in the case that connects.
In an embodiment provided by the invention, two ends of the rotary kiln cylinder are respectively rotatably mounted on a first support ring seat and a second support ring seat, and the first support ring seat and the second support ring seat are both fixedly connected and mounted on the base, wherein the first support ring seat is used for supporting the bottom end of the rotary kiln cylinder in the inclination direction, and the second support ring seat is used for supporting the top end of the rotary kiln cylinder in the inclination direction.
In one embodiment provided by the invention, the rotation of the rotary kiln cylinder is driven by a servo motor, wherein the servo motor is arranged on the base, and an output shaft of the servo motor is provided with a driving gear; and a driven gear ring meshed with the driving gear is coaxially and fixedly arranged on the rotary kiln cylinder, so that the rotary kiln cylinder is driven to rotate by using the started servo motor.
In one embodiment of the present invention, the feeding portion includes a supporting ring sleeve coaxially and rotatably disposed in the feeding cavity, a plurality of feeding blocks are fixedly mounted on the supporting ring sleeve, each feeding block has a feeding slot, the supporting ring sleeve is driven to rotate by a feeding motor, and an output shaft of the feeding motor is coaxially and fixedly connected to the supporting ring sleeve.
In an embodiment provided by the invention, the feeding channel is arranged on a feeding cylinder, the feeding cylinder is fixedly arranged on the box body, and one end of the feeding cylinder coaxially extends into the feeding cavity;
the feeding cylinder is provided with a feeding nozzle communicated with the feeding channel.
In one embodiment of the invention, a support sleeve is rotatably sleeved on the feeding cylinder through a bearing connection, the support sleeve is fixedly arranged on a second support ring seat, and the second support ring seat is coaxially and rotatably arranged at the top end of the rotary kiln cylinder along the inclined surface.
In one embodiment provided by the invention, a first crushing assembly and a second crushing assembly are respectively arranged in the crushing cavity; the top of the box body is provided with a feeding port for feeding materials into the crushing cavity, and the feeding port is positioned above the first crushing assembly.
In an embodiment provided by the invention, the first crushing assembly comprises arc-shaped screen plates fixedly arranged in the crushing cavity, a plurality of strip-shaped channels are uniformly distributed on the arc-shaped screen plates, and the arc-shaped screen plates are positioned below the feeding port;
the first crushing assembly further comprises a roller rotating shaft which is rotatably arranged in the crushing cavity, the rotation of the roller rotating shaft is driven by a motor, a plurality of crushing pieces are uniformly and fixedly arranged on the roller rotating shaft, and when the roller rotating shaft rotates, the crushing pieces freely pass through the strip-shaped channel.
In one embodiment of the present invention, the crushing member comprises a crushing rod fixedly mounted on the rotating shaft of the roller, and a crushing block is fixedly mounted at the end of each crushing rod, and the crushing block is provided with a plurality of crushing teeth.
In one embodiment provided by the invention, the rotating direction of the rotating shaft of the roller is opposite to the sliding direction of the materials along the surface of the arc-shaped screen plate.
Compared with the prior art, the rotary kiln special for smelting the laterite-nickel ore provided by the invention falls into nickel ore materials on the arc-shaped screen plate through the feeding port, small-volume materials directly pass through the strip-shaped channel to fall into the bottom of the crushing cavity and enter the feeding cavity through the connecting channel, and large-volume materials are continuously lifted by the crushing piece in the process of sliding down along the arc-shaped screen plate and can be crushed in the lifting process; the second crushing assembly is used for further finely crushing the materials crushed by the first crushing assembly; furthermore, in the specific use of the feeding part provided by the embodiment of the invention, the supporting ring sleeve is driven to rotate by the feeding motor, namely, the rotating supporting ring sleeve drives the feeding block to rotate in the feeding cavity, so that the materials at the bottom of the feeding cavity can be continuously fed into the feeding groove, when the feeding groove rotates to be aligned with the feeding nozzle, the materials in the feeding groove fall into the feeding channel through the feeding nozzle, and further the materials in the feeding channel slide down into the rotary kiln cylinder, so that the accumulation of the fed materials cannot occur when the materials are added into the rotary kiln cylinder, and the problems that the accumulation of nickel ore materials in the rotary kiln is easily caused in the traditional rotary kiln, and the quality and the efficiency of nickel ore processing and reduction are reduced can be solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic structural view of a special rotary kiln for smelting laterite-nickel ore according to the present invention;
FIG. 2 is a front view of a feeding section provided in the present invention;
FIG. 3 is a schematic perspective view of an arc-shaped mesh plate provided by the present invention;
FIG. 4 is a schematic structural view of a first crushing assembly provided by the present invention;
fig. 5 is a partially enlarged schematic view of a portion a in fig. 1.
In the drawings: 100. a box body; 101. a feeding port; 102. a connecting channel; 103. a feeding chamber; 104. a crushing chamber; 200. a base; 201. a material receiving box; 300. a material supply part; 301. a feeding block; 302. a feed chute; 303. a support ring sleeve; 304. a feeding motor; (ii) a 400. A rotary kiln cylinder; 401. a first support ring seat; 402. a second support ring seat; 403. a servo motor; 404. a support sleeve; 500. a second crushing assembly; 600. an arc-shaped screen plate; 601. a strip channel; 700. a first crushing assembly; 701. a roller rotating shaft; 702. a breaking bar; 703. breaking the fragments; 704. crushing teeth; 800. a feeding cylinder; 801. a feed channel; 802. a feeding nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
As shown in fig. 1, in embodiment 1 of the present invention, there is provided a special rotary kiln for smelting laterite-nickel ore, the rotary kiln comprising:
the rotary kiln barrel 400 is obliquely and rotatably arranged on the base 200, a material receiving box 201 is rotatably connected and arranged at the bottom end of the rotary kiln barrel 400 in the oblique direction, and a feeding barrel 800 is rotatably connected and arranged at the top end of the rotary kiln barrel 400 in the oblique direction;
the box body 100 is fixedly arranged on the base 200, the box body 100 is respectively provided with a feeding cavity 103 and a crushing cavity 104, wherein the bottom end of the feeding cavity 103 is communicated with the bottom end of the crushing cavity 104 through a connecting channel 102, and the connecting channel 102 is in an inclined state, so that nickel mineral materials which are crushed in the crushing cavity 104 enter the feeding cavity 103;
the feeding part 300 is used for conveying the nickel mineral materials in the feeding cavity 103 to the feeding channel 801, the feeding channel 801 is communicated with the inner cavity of the rotary kiln cylinder 400, so that the nickel mineral materials conveyed to the feeding channel 801 by the feeding part 300 can further slide down to enter the rotary kiln cylinder 400, and it can be understood that the metalized materials formed after full reduction reaction in the rotary kiln cylinder 400 are finally collected in the material receiving box 201.
Example 2
As shown in fig. 1, in embodiment 1 of the present invention, there is provided a special rotary kiln for smelting laterite-nickel ore, the rotary kiln comprising:
the rotary kiln barrel 400 is obliquely and rotatably arranged on the base 200, a material receiving box 201 is rotatably connected and arranged at the bottom end of the rotary kiln barrel 400 in the oblique direction, and a feeding barrel 800 is rotatably connected and arranged at the top end of the rotary kiln barrel 400 in the oblique direction;
the box body 100 is fixedly arranged on the base 200, the box body 100 is respectively provided with a feeding cavity 103 and a crushing cavity 104, wherein the bottom end of the feeding cavity 103 is communicated with the bottom end of the crushing cavity 104 through a connecting channel 102, and the connecting channel 102 is in an inclined state, so that nickel mineral materials which are crushed in the crushing cavity 104 enter the feeding cavity 103;
the feeding part 300 is used for feeding the nickel mineral material in the feeding cavity 103 into the feeding channel 801, the feeding channel 801 is communicated with the inner cavity of the rotary kiln cylinder 400, so that the nickel mineral material fed to the feeding channel 801 by the feeding part 300 can further slide down into the rotary kiln cylinder 400, and it can be understood that the metalized material formed after the sufficient reduction reaction in the rotary kiln cylinder 400 is finally collected in the material receiving box 201.
Preferably, with reference to fig. 1, in an embodiment of the present invention, two ends of the rotary kiln cylinder 400 are respectively rotatably mounted on a first support ring seat 401 and a second support ring seat 402, and both the first support ring seat 401 and the second support ring seat 402 are fixedly connected to and mounted on the base 200, wherein the first support ring seat 401 is configured to support a bottom end of the rotary kiln cylinder 400 in an inclined direction, and the second support ring seat 402 is configured to support a top end of the rotary kiln cylinder 400 in the inclined direction.
Further, in the embodiment of the present invention, the rotation of the rotary kiln cylinder 400 is driven by a servo motor 403, wherein the servo motor 403 is installed on the base 200, and a driving gear is installed on an output shaft of the servo motor 403; a driven ring gear engaged with the driving gear is coaxially and fixedly installed on the rotary kiln cylinder 400, and thus the rotary kiln cylinder 400 is driven to rotate by the activated servo motor 403.
With reference to fig. 1 and fig. 2, in the embodiment of the present invention, the feeding portion 300 includes a supporting ring sleeve 303 coaxially and rotatably disposed in the feeding cavity 103, a plurality of feeding blocks 301 are fixedly mounted on the supporting ring sleeve 303, each of the feeding blocks 301 has a feeding slot 302, the rotation of the supporting ring sleeve 303 is driven by a feeding motor 304, wherein an output shaft of the feeding motor 304 is coaxially and fixedly connected with the supporting ring sleeve 303.
Further, with continuing reference to fig. 1-2, in the embodiment of the present invention, the feeding channel 801 is opened on a feeding cylinder 800, the feeding cylinder 800 is fixedly installed on the box 100, and one end of the feeding cylinder 800 coaxially extends into the feeding cavity 103.
Further, the feeding cylinder 800 is provided with a feeding nozzle 802 communicated with the feeding channel 801.
It can be understood that in the specific use of the feeding portion 300 provided in the embodiment of the present invention, the supporting ring sleeve 303 is driven to rotate by the feeding motor 304, that is, the rotating supporting ring sleeve 303 drives the feeding block 301 to operate in the feeding cavity 103, so as to continuously feed the material at the bottom of the feeding cavity 103 into the feeding chute 302, when the feeding block 301 rotates until the feeding chute 302 aligns with the feeding nozzle 802, the material in the feeding chute 302 falls into the feeding channel 801 through the feeding nozzle 802, and further, the material in the feeding channel 801 slides into the rotary kiln barrel 400.
It will be appreciated that in order not to interfere with the material in the feed chute 302 entering the feed barrel 800, the support ring sleeve 303 and the feed nozzle 802 are staggered, and the feed nozzle 802 and the feed chute 302 are moved along a path corresponding to that of the feed chute 303, so that when the support ring sleeve 303 is rotated, the feed block 301 with the feed chute 302 can be used to continuously lift the material at the bottom of the feed chamber 103 until the feed chute 302 is aligned with the feed nozzle 802, and the material slides down and collects in the rotary kiln barrel 400.
Example 3
As shown in fig. 1, in embodiment 1 of the present invention, there is provided a special rotary kiln for smelting laterite-nickel ore, the rotary kiln comprising:
the rotary kiln barrel 400 is obliquely and rotatably arranged on the base 200, a material receiving box 201 is rotatably connected and arranged at the bottom end of the rotary kiln barrel 400 in the oblique direction, and a feeding barrel 800 is rotatably connected and arranged at the top end of the rotary kiln barrel 400 in the oblique direction;
the box body 100 is fixedly arranged on the base 200, the box body 100 is respectively provided with a feeding cavity 103 and a crushing cavity 104, wherein the bottom end of the feeding cavity 103 is communicated with the bottom end of the crushing cavity 104 through a connecting channel 102, and the connecting channel 102 is in an inclined state, so that nickel mineral materials which are crushed in the crushing cavity 104 enter the feeding cavity 103;
the feeding part 300 is used for feeding the nickel mineral material in the feeding cavity 103 into the feeding channel 801, the feeding channel 801 is communicated with the inner cavity of the rotary kiln cylinder 400, so that the nickel mineral material fed to the feeding channel 801 by the feeding part 300 can further slide down into the rotary kiln cylinder 400, and it can be understood that the metalized material formed after the sufficient reduction reaction in the rotary kiln cylinder 400 is finally collected in the material receiving box 201.
Preferably, with reference to fig. 1, in an embodiment of the present invention, two ends of the rotary kiln cylinder 400 are respectively rotatably mounted on a first support ring seat 401 and a second support ring seat 402, and both the first support ring seat 401 and the second support ring seat 402 are fixedly connected to and mounted on the base 200, wherein the first support ring seat 401 is configured to support a bottom end of the rotary kiln cylinder 400 in an inclined direction, and the second support ring seat 402 is configured to support a top end of the rotary kiln cylinder 400 in the inclined direction.
Further, in the embodiment of the present invention, the rotation of the rotary kiln cylinder 400 is driven by a servo motor 403, wherein the servo motor 403 is installed on the base 200, and a driving gear is installed on an output shaft of the servo motor 403; a driven gear ring engaged with the driving gear is coaxially and fixedly installed on the rotary kiln cylinder 400, and thus the rotary kiln cylinder 400 is driven to rotate by the activated servo motor 403.
With reference to fig. 1 and fig. 2, in the embodiment of the present invention, the feeding portion 300 includes a supporting ring sleeve 303 coaxially and rotatably disposed in the feeding cavity 103, a plurality of feeding blocks 301 are fixedly mounted on the supporting ring sleeve 303, each of the feeding blocks 301 has a feeding slot 302, the rotation of the supporting ring sleeve 303 is driven by a feeding motor 304, wherein an output shaft of the feeding motor 304 is coaxially and fixedly connected with the supporting ring sleeve 303.
Further, with continuing reference to fig. 1-2, in the embodiment of the present invention, the feeding channel 801 is opened on a feeding cylinder 800, the feeding cylinder 800 is fixedly installed on the box 100, and one end of the feeding cylinder 800 coaxially extends into the feeding cavity 103.
Further, the feeding cylinder 800 is provided with a feeding nozzle 802 communicated with the feeding channel 801.
It can be understood that in the specific use of the feeding portion 300 provided in the embodiment of the present invention, the supporting ring sleeve 303 is driven to rotate by the feeding motor 304, that is, the rotating supporting ring sleeve 303 drives the feeding block 301 to operate in the feeding cavity 103, so as to continuously feed the material at the bottom of the feeding cavity 103 into the feeding chute 302, when the feeding block 301 rotates until the feeding chute 302 aligns with the feeding nozzle 802, the material in the feeding chute 302 falls into the feeding channel 801 through the feeding nozzle 802, and further, the material in the feeding channel 801 slides into the rotary kiln barrel 400.
It will be appreciated that in order not to interfere with the material in the feed chute 302 entering the feed cylinder 800, the support ring sleeve 303 and the feed nozzle 802 are staggered, and the feed nozzle 802 and the feed chute 302 are moved along a path corresponding to that of the feed chute, and when the support ring sleeve 303 is used to rotate, the feed block 301 with the feed chute 302 can be used to continuously lift the material at the bottom of the feed chamber 103 until the feed chute 302 is aligned with the feed nozzle 802, and the material slides down and collects in the rotary kiln cylinder 400.
Further, as shown in fig. 1 and fig. 5, in the embodiment of the present invention, a support sleeve 404 is rotatably sleeved on the feeding cylinder 800 through a bearing connection, the support sleeve 404 is fixedly installed on a second support ring seat 402, and the second support ring seat 402 is coaxially supported and rotatably installed at the top end of the rotary kiln cylinder 400 along the inclined plane.
With continued reference to fig. 1, 3 and 4, in an embodiment of the present invention, a first crushing assembly 700 and a second crushing assembly 500 are disposed in the crushing chamber 104; the top of the box 100 has a feed opening 101 for feeding material into the crushing chamber 104, the feed opening 101 being located above the first crushing assembly 700, it being understood that nickel mineral material entering the crushing chamber 104 first falls onto the first crushing assembly 700, is initially crushed by the first crushing assembly 700, and is further crushed by the second crushing assembly 500 as the crushed material continues to fall within the crushing chamber 104.
As shown in fig. 1, 3 and 4, in the embodiment of the present invention, the first crushing assembly 700 includes an arc-shaped mesh plate 600 fixedly installed in the crushing chamber 104, a plurality of strip-shaped channels 601 are uniformly distributed on the arc-shaped mesh plate 600, and the arc-shaped mesh plate 600 is located below the feeding opening 101.
Further, in the embodiment of the present invention, the first crushing assembly 700 further includes a roller rotating shaft 701 rotatably disposed in the crushing cavity 104, the rotation of the roller rotating shaft 701 is driven by a motor, a plurality of crushing members are uniformly and fixedly mounted on the roller rotating shaft 701, and when the roller rotating shaft 701 rotates, the crushing members freely pass through the strip channel 601.
Specifically, in the embodiment of the present invention, the crushing member includes crushing rods 702 fixedly installed on the roller rotating shaft 701, each crushing rod 702 has a crushing piece 703 fixedly installed at an end thereof, and the crushing piece 703 has a plurality of crushing teeth 704 thereon.
Further, the rotating direction of the roller rotating shaft 701 is opposite to the sliding direction of the materials along the surface of the arc-shaped screen 600.
Therefore, it can be understood that, when the material is dropped into the nickel ore material on the arc-shaped mesh plate 600 through the feeding port 101, the small-volume material is directly dropped into the bottom of the crushing cavity 104 through the strip-shaped channel 601 and enters the feeding cavity 103 through the connecting channel 102, and the large-volume material is continuously lifted by the crushing member during the process of sliding down along the arc-shaped mesh plate 600, and the large-volume material can be crushed during the lifting process.
In the present embodiment, the second crushing assembly 500 is used to perform further fine crushing of the material crushed by the first crushing assembly 700.
The above embodiments are merely illustrative of a preferred embodiment, but not limited thereto. In the implementation of the invention, appropriate replacement and/or modification can be carried out according to the requirements of users.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept as defined by the claims and their equivalents.
Claims (10)
1. The special rotary kiln for smelting the laterite-nickel ore is characterized by comprising the following components in percentage by weight:
the rotary kiln comprises a rotary kiln barrel, a rotary kiln barrel and a rotary kiln, wherein the rotary kiln barrel is obliquely and rotatably arranged on a base, a material receiving box is rotatably connected and arranged at the bottom end of the rotary kiln barrel in the oblique direction, and a material feeding barrel is rotatably connected and arranged at the top end of the rotary kiln barrel in the oblique direction;
the crushing device comprises a box body fixedly arranged on the base, wherein a feeding cavity and a crushing cavity are respectively arranged on the box body, the bottom end of the feeding cavity is communicated with the bottom end of the crushing cavity through a connecting channel, and the connecting channel is in an inclined state;
and the feeding part is used for conveying the nickel ore materials in the feeding cavity into the feeding channel, and the feeding channel is communicated with the inner cavity of the rotary kiln cylinder.
2. The special rotary kiln for smelting nickel laterite ores according to claim 1, wherein two ends of a rotary kiln cylinder are respectively rotatably mounted on a first supporting ring seat and a second supporting ring seat, the first supporting ring seat and the second supporting ring seat are both fixedly connected and mounted on a base, wherein the first supporting ring seat is used for supporting the bottom end of the rotary kiln cylinder in the inclined direction, and the second supporting ring seat is used for supporting the top end of the rotary kiln cylinder in the inclined direction.
3. The special rotary kiln for smelting laterite-nickel ores according to claim 2, wherein the rotation of the rotary kiln cylinder is driven by a servo motor, wherein the servo motor is installed on the base, and an output shaft of the servo motor is provided with a driving gear; and a driven gear ring meshed with the driving gear is coaxially and fixedly arranged on the rotary kiln cylinder.
4. The rotary kiln special for smelting lateritic nickel ores according to any one of claims 1 to 3, wherein the feeding part includes a supporting ring sleeve coaxially rotatably arranged in the feeding cavity, a plurality of feeding blocks are fixedly installed on the supporting ring sleeve, each feeding block is provided with a feeding groove, the rotation of the supporting ring sleeve is driven by a feeding motor, and an output shaft of the feeding motor is coaxially and fixedly connected with the supporting ring sleeve.
5. The rotary kiln special for smelting nickel laterite ores according to claim 4, characterized in that the feeding channel is opened on a feeding cylinder, the feeding cylinder is fixedly installed on the box body, and one end of the feeding cylinder coaxially extends into the feeding cavity;
the feeding cylinder is provided with a feeding nozzle communicated with the feeding channel.
6. The special rotary kiln for smelting nickel laterite ores according to claim 5, characterized in that a support sleeve is rotatably sleeved on the feeding cylinder through a bearing connection, the support sleeve is fixedly installed on a second support ring seat, and the second support ring seat is axially and rotatably arranged on the top end of the rotary kiln cylinder body along the inclined plane.
7. The special rotary kiln for smelting nickel laterite ores according to claim 6, wherein a first crushing assembly and a second crushing assembly are respectively arranged in the crushing cavity; the top of the box body is provided with a feeding port for feeding materials into the crushing cavity, and the feeding port is positioned above the first crushing assembly.
8. The special rotary kiln for smelting nickel laterites as claimed in claim 7, wherein the first crushing assembly comprises an arc-shaped screen plate fixedly installed in the crushing cavity, a plurality of strip-shaped channels are uniformly distributed on the arc-shaped screen plate, and the arc-shaped screen plate is positioned below the feeding port;
the first crushing assembly further comprises a roller rotating shaft which is rotatably arranged in the crushing cavity, the rotation of the roller rotating shaft is driven by a motor, a plurality of crushing pieces are uniformly and fixedly arranged on the roller rotating shaft, and when the roller rotating shaft rotates, the crushing pieces freely penetrate through the strip-shaped channel.
9. The rotary kiln special for smelting lateritic nickel ores according to claim 8, wherein the crushing members include crushing rods fixedly installed on the rotating shaft of the roller, a crushing block is fixedly installed at the end of each crushing rod, and a plurality of crushing teeth are arranged on the crushing blocks.
10. The special rotary kiln for smelting nickel laterite ores according to claim 9, characterized in that the rotation direction of the roller rotating shaft is opposite to the direction of the material sliding downwards along the surface of the arc-shaped screen plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210810228.1A CN115235234B (en) | 2022-07-11 | 2022-07-11 | Special rotary kiln for smelting laterite-nickel ore |
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| CN202210810228.1A CN115235234B (en) | 2022-07-11 | 2022-07-11 | Special rotary kiln for smelting laterite-nickel ore |
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| CN115235234A true CN115235234A (en) | 2022-10-25 |
| CN115235234B CN115235234B (en) | 2023-03-31 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202171388U (en) * | 2011-07-15 | 2012-03-21 | 攀枝花泓兵钒镍有限责任公司 | Rotary kiln for smelting red soil nickel ores |
| CN106480327A (en) * | 2016-11-11 | 2017-03-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Reduce the device and method of lateritic nickel ore using electrical heating rotary kiln |
| CN209968502U (en) * | 2019-03-06 | 2020-01-21 | 广东世纪青山镍业有限公司 | Automatic transfer chain ferronickel ore breaker |
| CN211913942U (en) * | 2020-04-09 | 2020-11-13 | 溧阳正东机械制造有限公司 | Double-toothed roller laterite-nickel ore crusher |
| CN112961954A (en) * | 2021-01-28 | 2021-06-15 | 江苏鹏飞集团股份有限公司 | Rotary kiln for producing ferronickel by directly reducing laterite-nickel ore and production method |
| CN215755324U (en) * | 2021-05-13 | 2022-02-08 | 胡余文 | Automatic feeding device for laterite-nickel ore smelting furnace |
-
2022
- 2022-07-11 CN CN202210810228.1A patent/CN115235234B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202171388U (en) * | 2011-07-15 | 2012-03-21 | 攀枝花泓兵钒镍有限责任公司 | Rotary kiln for smelting red soil nickel ores |
| CN106480327A (en) * | 2016-11-11 | 2017-03-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Reduce the device and method of lateritic nickel ore using electrical heating rotary kiln |
| CN209968502U (en) * | 2019-03-06 | 2020-01-21 | 广东世纪青山镍业有限公司 | Automatic transfer chain ferronickel ore breaker |
| CN211913942U (en) * | 2020-04-09 | 2020-11-13 | 溧阳正东机械制造有限公司 | Double-toothed roller laterite-nickel ore crusher |
| CN112961954A (en) * | 2021-01-28 | 2021-06-15 | 江苏鹏飞集团股份有限公司 | Rotary kiln for producing ferronickel by directly reducing laterite-nickel ore and production method |
| CN215755324U (en) * | 2021-05-13 | 2022-02-08 | 胡余文 | Automatic feeding device for laterite-nickel ore smelting furnace |
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| CN115235234B (en) | 2023-03-31 |
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