CN115212984A - Online crushing and screening equipment and process for large-particle-size nickel ores - Google Patents
Online crushing and screening equipment and process for large-particle-size nickel ores Download PDFInfo
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- CN115212984A CN115212984A CN202210703090.5A CN202210703090A CN115212984A CN 115212984 A CN115212984 A CN 115212984A CN 202210703090 A CN202210703090 A CN 202210703090A CN 115212984 A CN115212984 A CN 115212984A
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000012216 screening Methods 0.000 title claims abstract description 74
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 89
- 238000001035 drying Methods 0.000 claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses equipment and a process for online crushing and screening large-particle-size nickel ores, wherein the equipment comprises a drying and screening device, a crushing device and a conveying device, wherein the conveying device is used for conveying ores to be crushed from the drying and screening device to the crushing device; the control system is respectively connected with the conveying device and the distance sensor, the distance sensor transmits sensed material height data to the control system, and the control system controls the conveying device to speed up, speed down, start or stop according to the received material height data. The invention can realize automatic control of the ore feeding amount of the crushing device, so as to ensure that the ore feeding amount of the crushing device is not too low or too high, and avoid reduction of the crushing efficiency of the crushing device or damage to the crushing device.
Description
Technical Field
The invention belongs to the field of metallurgical equipment, and particularly relates to online crushing and screening equipment and process for large-particle-size nickel ore.
Background
The nickel ores passing through the discharge port of the drying kiln have different particle sizes, the large-particle-size nickel ores cannot meet the requirements of the production process, the large-particle-size nickel ores need to be screened out, the large-particle-size nickel ores are conveyed to a crusher to be crushed, and the crushed materials are conveyed to a batching plant again. In the prior art, a forklift is usually adopted to transport large-particle-size nickel ores, the whole process is long in period, manual assistance in cleaning, vehicle transportation and the like are needed, the cost is high, and the production efficiency is low; the forklift directly feeds materials to the crusher port, the materials are easy to collide with the equipment, and impact force is generated instantly when ore is dropped, so that the equipment is damaged.
Through retrieval, china with publication number CN114289154A specially used for 2022 years, 4 months and 8 days discloses a four-time crushing and one-time closed-circuit screening ore crushing process and device, which comprises a first crusher, a transfer device, a waste throwing device, a first linear vibrating screen, a second crusher, a third crusher, a second linear vibrating screen, a cone crusher and a stone grinder, wherein the ore crushing step is as follows: the method comprises the following steps: adding the ore into a first crusher through a forklift for crushing, so as to perform primary coarse crushing on the ore; step two: conveying the coarsely crushed ore to a first linear vibrating screen through an external conveying mechanism so as to pre-screen the coarsely crushed ore; step three: conveying the pre-screened ore into a second crusher through an external conveying mechanism so as to perform intermediate crushing on the pre-screened ore; step four: conveying the crushed ore to a third crusher through an external conveying mechanism so as to finely crush the crushed ore; step five: conveying the finely crushed ore into a second linear vibrating screen through an external conveying mechanism so as to perform secondary screening on the finely crushed ore; step six: conveying the ore subjected to secondary screening into a cone crusher through an external conveying mechanism for final fine crushing; step seven: transferring the finally finely crushed ore into a waste throwing device through a transfer device so as to throw and remove waste rocks; step eight: and transferring the discarded ore into a stone grinding machine through another transfer device to finally obtain the concentrate. This patent is through the second linear vibrating screen that sets up and throwing useless device, when using the device, has reduced the granularity of product, has improved the taste of product to practiced thrift and ground the space, reduced consumption of power, practiced thrift the cost.
At present, when the crusher crushes ores, if the ore feeding amount is too large, the crushing and screening efficiency of the crusher can be reduced, and the phenomenon of ore accumulation or ore pressing can also occur, so that equipment is damaged. Therefore, it is necessary to design a set of crushing equipment capable of automatically controlling the feeding amount of the crusher so as to avoid the efficiency reduction and equipment damage caused by the excessive feeding amount.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the equipment and the process for online crushing and screening of the nickel ore with large particle size, which are used for controlling the ore feeding amount of a crusher, so that the problems of low efficiency and equipment damage caused by overlarge ore feeding amount are solved.
Based on one aspect of the invention, the online crushing and screening equipment for the large-particle-size nickel ore comprises a drying and screening device, a crushing device and a conveying device, wherein the conveying device is used for conveying the ore to be crushed from the drying and screening device to the crushing device; the control system is respectively connected with the conveying device and the distance sensor, the distance sensor transmits sensed material height data to the control system, and the control system controls the conveying device to speed up, speed down, start or stop according to the received material height data.
In the technical scheme, the ore to be crushed which is dried and sieved by the drying and sieving device is conveyed to the crushing device by the conveying device, the distance sensor arranged above the feeding hole of the crushing device can sense the amount of the ore to be crushed (namely the ore feeding amount) entering the crushing device, when the ore to be crushed in the crushing device is accumulated to a certain height, the amount of the ore to be crushed in the crushing device is larger, the sensing data of the distance sensor received by the control system reaches or exceeds the set threshold value, the control system controls the conveying device to reduce the conveying speed or stops conveying until the amount of the ore to be crushed in the crushing device is reduced to be below the threshold value, and then the control system controls the conveying device to improve the conveying speed.
Further, the crushing device comprises a primary crusher and a secondary crusher; the conveying device comprises a first conveying device and a second conveying device, and the first conveying device is used for conveying ores to be crushed from the drying and screening device to the primary crusher; the second conveying device is used for conveying coarse materials discharged from a coarse material discharge port of the primary crusher into the secondary crusher. Meanwhile, the primary crusher and the secondary crusher are arranged to crush the ore to be crushed into required particle size as much as possible, so that the product rate of ore crushing is increased; and firstly, a first-stage crusher is adopted for crushing, and then a second-stage crusher is adopted for crushing, so that the crushing efficiency can be improved.
Further, the distance sensor comprises a first distance sensor and a second distance sensor, the first distance sensor is arranged above the feeding hole of the first-stage crusher, and the second distance sensor is arranged above the feeding hole of the second-stage crusher; the control system is used for controlling the first conveying device to accelerate, decelerate, start or stop according to the height data of the materials in the primary crusher sensed by the first distance sensor, and the control system is also used for controlling the second conveying device to accelerate, decelerate, start or stop according to the height data of the materials in the secondary crusher sensed by the second distance sensor. The ore feeding amount of the first-stage crusher and the ore feeding amount of the second-stage crusher are respectively sensed through the two distance sensors, the sensing data are transmitted to the control system, and the control system controls the conveying speed of the first conveying device and the conveying speed of the second conveying device according to the sensing data so as to ensure that the ore feeding amount in the first-stage crusher and the ore feeding amount in the second-stage crusher cannot exceed a threshold value. The feed rate is the amount of ore delivered to the plant and may be calibrated by the volume or weight of ore input to the plant.
Further, an iron removing device is arranged above the first conveying device and used for removing iron impurities in the ore to be crushed. The iron impurities in the ore are removed through the iron removal device, so that the damage of the iron impurities to the crusher can be avoided, the impurity content of the crushed product is reduced, and the subsequent treatment and use of the crushed ore are facilitated.
Further, the conveying device also comprises a third conveying device which is used for conveying the fine materials discharged by the drying and screening device and the crushing device to the fine material storage unit for storage.
Further, the first conveying device, the second conveying device and the third conveying device are all conveying belts. The conveying belt is a common conveying device, has a simple structure, is low in purchase and use cost, and is beneficial to reducing the overall cost of equipment.
Further, a dust cover is arranged above the conveying belt. The dust cover can prevent the dust in the material to be crushed or the crushed fine material conveying process from drifting to the air, thereby deteriorating the construction environment.
Further, dry screening plant includes the drying kiln, the discharge end of drying kiln is connected with the screen cloth tripper, the screen cloth tripper includes coarse fodder discharge gate and thin material discharge gate, the coarse fodder discharge gate of screen cloth tripper is located first conveyer's top, the thin material discharge gate of screen cloth tripper is located third conveyer's top. The screen distributor can sieve out the fine material and the coarse material in the dried ore, directly convey the fine material to the fine material storage unit, and convey the coarse material to the crushing device, thereby avoiding the fine material from being conveyed to the crushing device for unnecessary crushing, and improving the crushing efficiency.
Based on another aspect of the invention, an online crushing and screening process for large-particle-size nickel ores is provided, which comprises the following steps: starting large-particle-size nickel ore online crushing and screening equipment, putting large-particle-size nickel ore into a drying and screening device, drying and screening the large-particle-size nickel ore by the drying and screening device, and transmitting screened coarse materials to a crushing device for crushing by a conveying device;
the first distance sensor senses the height of ore in the primary crusher and transmits sensed height data to the control system, the control system judges whether the height of the ore in the crushing device exceeds a threshold value, and if yes, the first conveying device is controlled to reduce the conveying speed or stop conveying; the second distance sensor senses the height of ore in the secondary crusher and transmits sensed height data to the control system, the control system judges whether the height of the ore in the crushing device exceeds a threshold value, and if yes, the second conveying device is controlled to reduce the conveying speed or stop conveying;
the first distance sensor continuously senses the height of ore in the primary crusher and transmits sensed height data to the control system, and when the height data received by the control system is lower than a threshold value, the control system controls the first transmission device to start transmission or increase the transmission speed; the second distance sensor continuously senses the height of ore in the secondary crusher and transmits sensed height data to the control system, and when the height data received by the control system is lower than a threshold value, the control system controls the second conveying device to start conveying or increase the conveying speed;
and when the crushing and screening are finished, closing the online screening equipment for the large-particle-size nickel ores.
In the technical scheme, after the online screening equipment is started, the nickel ore with large particle size is put into the drying and screening device, the dried ore is screened into coarse material and fine material, the fine material can be directly transported to the fine material storage unit for storage, and the coarse material is transported to the crushing device for crushing; the distance sensor arranged above the feeding hole of the crushing device can sense the height of ores to be crushed in the crushing device, the quantity relation between the weight and the height of the ores to be crushed in the crushing device can be calculated as the density of the ores to be crushed and the inner diameter of the crushing device are fixed, when the height of the ores to be crushed in the crushing device exceeds a threshold value, the ore feeding amount of the crushing device is over large, and at the moment, the control system controls the conveying device to reduce the conveying speed or stop conveying; along with the ore to be crushed in the crushing device is gradually crushed and discharged out of the crushing device, the stacking height of the ore to be crushed in the crushing device is gradually reduced, at the moment, the control system controls the conveying device to lift the conveying speed, the processes are continuously repeated, and the ore feeding amount of the crushing device is maintained near the maximum value in the bearable range until the crushing process is completed.
Further, the fine materials screened by the drying and screening device and the crushed fine materials are both conveyed to a fine material storage unit by a third conveying device.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the large-particle-size nickel ore online crushing and screening equipment provided by the invention, ores to be crushed, which are dried and screened by the drying and screening device, are conveyed into the crushing device by the conveying device, the distance sensor arranged above the feeding hole of the crushing device can sense the amount of the ores to be crushed (namely ore feeding amount) entering the crushing device, when the ores to be crushed in the crushing device are accumulated to a certain height, the amount of the ores to be crushed in the crushing device is larger, the sensing data of the distance sensor received by the control system reaches or exceeds the set threshold value, the control system controls the conveying device to reduce the conveying speed or stop conveying until the amount of the ores to be crushed in the crushing device is reduced to be below the threshold value, and the control system controls the conveying device to increase the conveying speed. The invention can realize automatic control of the ore feeding amount of the crushing device, so as to ensure that the ore feeding amount of the crushing device is not too low or too high, and avoid reducing the crushing efficiency of the crushing device or damaging the crushing device.
(2) According to the online crushing and screening equipment for the large-particle-size nickel ore, the ore is conveyed by the belt, so that the problems that in the prior art, the large-particle-size nickel ore is transported by a forklift, cleaning is required to be assisted manually, the forklift needs to transport the large-particle-size nickel ore, the cost is high, the production efficiency is low and the like are solved.
(3) According to the large-particle-size nickel ore online crushing and screening process, after online screening equipment is started, large-particle-size nickel ore is put into a drying and screening device, the dried ore is screened into coarse materials and fine materials, the fine materials can be directly conveyed to a fine material storage unit for storage, and the coarse materials are conveyed to a crushing device for crushing; the distance sensor arranged above the feeding hole of the crushing device can sense the height of ores to be crushed in the crushing device, the quantitative relation between the weight and the height of the ores to be crushed in the crushing device can be calculated as the density of the ores to be crushed and the inner diameter of the crushing device are fixed, when the height of the ores to be crushed in the crushing device exceeds a threshold value, the feeding amount of the crushing device is over large, and at the moment, the control system controls the conveying device to reduce the conveying speed; along with the to-be-crushed ore in the crushing device is gradually crushed and discharged out of the crushing device, the stacking height of the to-be-crushed ore in the crushing device is gradually reduced, at the moment, the control system controls the conveying device to increase the conveying speed, the above processes are continuously repeated, and the ore feeding amount of the crushing device is maintained near the maximum value in the bearable range until the crushing process is completed. The control system is adopted to automatically control the ore feeding amount of the crushing device, so that the ore feeding amount of the crushing device is maintained at a proper level, the workload increase caused by manual control of the ore feeding amount is reduced, and meanwhile, the crushing efficiency of the crushing device is maintained at a higher level and the crushing device is prevented from being damaged by overhigh ore feeding amount.
Drawings
FIG. 1 is a front view of an online crushing and screening device for large-particle-size nickel ore according to an embodiment of the invention;
FIG. 2 is a top view of an online crushing and screening device for large-particle-size nickel ore according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a control system connection according to an embodiment of the present invention;
fig. 4 is a flow chart of an on-line crushing and screening process of large-particle-size nickel ore according to an embodiment of the invention.
In the figure: 1. a drying kiln; 2. a screen distributor; 3. a third conveyor belt; 4. iron removal equipment; 5. a first transfer belt; 6. a first-stage crusher; 7. vibrating a screen chute; 8. a second conveyor belt; 9. a secondary crusher; 10. a fines storage unit; 11. a first fines drop point; 12. a first coarse material blanking point; 13. a second fines drop point; 14. a second coarse material blanking point; 15. and a third fines drop point.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides an online crushing and screening device for large-particle-size nickel ore, which includes a drying and screening device, a crushing device, and a conveying device, wherein the conveying device is used for conveying ore to be crushed from the drying and screening device to the crushing device.
The drying and screening device comprises a drying kiln and a screen distributor, wherein the drying kiln is used for drying and dewatering ores, and the ores subjected to drying and dewatering are screened into fine materials and coarse materials through the screen distributor.
The crushing device comprises a primary crusher and a secondary crusher, a discharge port of the primary crusher is connected with a vibrating screen chute, and the ore crushed by the primary crusher is screened into coarse materials and fine materials by the vibrating screen chute.
The conveying device comprises a first conveying device (a first conveying belt in the embodiment), a second conveying device (a second conveying belt in the embodiment) and a third conveying device (a third conveying belt in the embodiment, and the third conveying belt is composed of two belts). The first conveying belt is provided with a first coarse material blanking point, coarse materials screened by the screen material distributor fall onto the first coarse material blanking point, and then are conveyed to the primary crusher through the first conveying belt to be crushed. And a second coarse material blanking point is arranged on the second conveying belt, and the secondary coarse material screened out by the vibrating screen chute falls to the second coarse material blanking point and is conveyed to a secondary crusher by the second conveying belt for crushing.
A first fine material blanking point, a second fine material blanking point and a third fine material blanking point are respectively arranged on the third conveying belt, and a fine material storage unit is arranged at the discharging end of the third conveying belt; the first fine material blanking point is used for receiving fine materials screened by the screen distributor, the second fine material blanking point is used for receiving fine materials screened by the vibrating screen chute, and the third fine material blanking point is used for receiving fine materials discharged from a discharge port of the secondary crusher; the fine material received by the fine material drop point is transferred to the fine material storage unit through a third transfer belt.
As shown in fig. 3, the online crushing and screening device for large-particle-size nickel ore provided by the present embodiment further includes a distance sensor and a control system, where the distance sensor includes a first distance sensor and a second distance sensor; the first distance sensor is arranged above a feeding hole of the primary crusher and used for sensing the stacking height of ores to be crushed in the primary crusher and transmitting height data to the control system, and the control system judges whether the ore feeding amount of the primary crusher is too high or too large according to the height data; the second distance sensor is arranged above a feed inlet of the secondary crusher and used for sensing the stacking height of ores to be crushed in the secondary crusher and transmitting height data to the control system, and the control system judges whether the ore feeding amount of the secondary crusher is too high or too low according to the height data.
The control system is connected with the first conveying belt and the second conveying belt in the conveying device and used for respectively controlling the conveying speeds of the first conveying belt and the second conveying belt according to the ore feeding amount of the primary crusher and the ore feeding amount of the secondary crusher.
As a preferred embodiment, the first conveyor belt is provided with an iron removal device for removing iron impurities from the ore to be crushed.
As a preferred embodiment, dust covers are arranged above the first conveying belt, the second conveying belt and the third conveying belt and used for preventing raised dust in the conveying process from entering the atmosphere, and the working environment is prevented from being deteriorated and the health of workers is influenced.
As a preferred embodiment, the feeding port of the drying kiln is provided with an alarm device, when the control system judges that the ore feeding amount is too large according to the sensing data of the distance sensor, the control system controls the alarm device to give an alarm to remind a worker to reduce the ore feeding amount of the drying kiln, and excessive ore to be crushed is prevented from being accumulated on the first conveying device or the second conveying device.
Example 2
As shown in fig. 4, the embodiment provides an online crushing and screening process for large-particle-size nickel ores, which includes the following steps:
starting large-particle-size nickel ore online crushing and screening equipment, putting large-particle-size nickel ore into a drying and screening device, drying and screening the large-particle-size nickel ore by the drying and screening device, and conveying screened fine materials to a fine material storage unit by a third conveying device; the coarse fodder of screening out is transmitted to breaker breakage by conveyer, specifically is:
the first conveying belt conveys coarse materials to be crushed, which are screened by the drying and screening device, to a primary crusher, and the iron removing device removes iron impurities in ores in the conveying process; the primary crusher crushes ores to be crushed, fine materials and coarse materials are screened out of the crushed ores through a vibrating screen chute, the fine materials are conveyed to a fine material storage unit through a third conveying device, and the coarse materials are conveyed to the secondary crusher through a second conveying belt to be crushed; fine materials obtained after the secondary crusher is crushed are conveyed to a fine material storage unit through a third conveying device;
the distance sensor senses the height of ore in the crushing device and transmits sensed height data to the control system, the control system judges whether the ore stacking height in the crushing device exceeds a threshold (the threshold comprises a first threshold and a second threshold), if so, the ore feeding amount is overlarge, and the control system controls the first conveying belt or/and the second conveying belt to reduce the conveying speed (exceeds the first threshold but does not exceed the second threshold) or stop conveying (exceeds the second threshold);
the distance sensor senses the height of ore in the crushing device and transmits sensed height data to the control system, and when the height data received by the control system is lower than a threshold value, the control system controls the first conveyor belt or/and the second conveyor belt to start conveying (lower than a second threshold value but higher than a first threshold value) or to increase the conveying speed (lower than the first threshold value); the conveying speed of the first conveying belt and the conveying speed of the second conveying belt are controlled through the control system, the ore amount to be crushed in the first-stage crusher and the second-stage crusher is close to the maximum bearable amount of the ore amount to be crushed, the damage of the first-stage crusher and the second-stage crusher due to the fact that the ore feeding amount is too large can be avoided, and the crushing efficiency can be improved.
And when the crushing and screening are finished, closing the online screening equipment for the large-particle-size nickel ores.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (10)
1. The online crushing and screening equipment for the large-particle-size nickel ores comprises a drying and screening device, a crushing device and a conveying device, wherein the conveying device is used for conveying ores to be crushed to the crushing device from the drying and screening device; the control system is respectively connected with the conveying device and the distance sensor, the distance sensor transmits sensed material height data to the control system, and the control system controls the conveying device to speed up, speed down, start or stop according to the received material height data.
2. The on-line crushing and screening equipment for the large-particle-size nickel ores according to the claim 1, characterized in that the crushing device comprises a primary crusher and a secondary crusher; the conveying device comprises a first conveying device and a second conveying device, and the first conveying device is used for conveying ores to be crushed from the drying and screening device to the primary crusher; the second conveying device is used for conveying coarse materials discharged from a coarse material discharge port of the primary crusher into the secondary crusher.
3. The online crushing and screening equipment for the large-particle-size nickel ores according to claim 2, characterized in that the distance sensor comprises a first distance sensor and a second distance sensor, the first distance sensor is arranged above a feeding port of a primary crusher, and the second distance sensor is arranged above a feeding port of a secondary crusher; the control system is used for controlling the first conveying device to accelerate, decelerate, start or stop according to the height data of the materials in the primary crusher sensed by the first distance sensor, and the control system is also used for controlling the second conveying device to accelerate, decelerate, start or stop according to the height data of the materials in the secondary crusher sensed by the second distance sensor.
4. The on-line crushing and screening equipment for the large-particle-size nickel ores according to claim 2, characterized in that iron removal equipment is arranged above the first conveying device and used for removing iron impurities in the ores to be crushed.
5. The on-line crushing and screening equipment for the large-particle-size nickel ores according to the claim 2, characterized in that the conveying device further comprises a third conveying device, and the third conveying device is used for conveying the fine materials discharged by the drying and screening device and the crushing device to a fine material storage unit for storage.
6. The on-line crushing and screening equipment for large-particle-size nickel ores according to claim 5, characterized in that the first conveying device, the second conveying device and the third conveying device are all conveying belts.
7. The on-line crushing and screening equipment for the nickel ores with large particle size according to claim 6, characterized in that a dust cover is arranged above the conveying belt.
8. The online crushing and screening equipment for the large-particle-size nickel ores according to claim 7, characterized in that the drying and screening device comprises a drying kiln, a discharge end of the drying kiln is connected with a screen distributor, the screen distributor comprises a coarse material discharge port and a fine material discharge port, the coarse material discharge port of the screen distributor is positioned above the first conveying device, and the fine material discharge port of the screen distributor is positioned above the third conveying device.
9. An online crushing and screening process for large-particle-size nickel ores, which is used for crushing and screening the large-particle-size nickel ores on the basis of the online crushing and screening equipment for the large-particle-size nickel ores as claimed in any one of claims 1 to 8, and is characterized by comprising the following steps of:
starting large-particle-size nickel ore online crushing and screening equipment, putting large-particle-size nickel ore into a drying and screening device, drying and screening the large-particle-size nickel ore by the drying and screening device, and transmitting screened coarse materials to a crushing device for crushing by a conveying device;
the first distance sensor senses the height of ore in the primary crusher and transmits sensed height data to the control system, the control system judges whether the height of the ore in the crushing device exceeds a threshold value, and if yes, the first conveying device is controlled to reduce the conveying speed or stop conveying; the second distance sensor senses the height of ore in the secondary crusher and transmits sensed height data to the control system, the control system judges whether the height of the ore in the crushing device exceeds a threshold value, and if yes, the second conveying device is controlled to reduce the conveying speed or stop conveying;
the first distance sensor continuously senses the height of ore in the primary crusher and transmits sensed height data to the control system, and when the height data received by the control system is lower than a threshold value, the control system controls the first transmission device to start transmission or increase the transmission speed; the second distance sensor continuously senses the height of ore in the secondary crusher and transmits sensed height data to the control system, and when the height data received by the control system is lower than a threshold value, the control system controls the second conveying device to start conveying or increase the conveying speed;
and when the crushing and screening are finished, closing the online screening equipment for the large-particle-size nickel ores.
10. The on-line crushing and screening process for the nickel ores with the large particle size according to the claim 9, characterized in that the fine materials sieved by the drying and screening device and the crushed fine materials are both transmitted to a fine material storage unit by a third transmission device.
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| CN202210703090.5A CN115212984A (en) | 2022-06-21 | 2022-06-21 | Online crushing and screening equipment and process for large-particle-size nickel ores |
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| CN202210703090.5A CN115212984A (en) | 2022-06-21 | 2022-06-21 | Online crushing and screening equipment and process for large-particle-size nickel ores |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226233A (en) * | 2011-05-27 | 2011-10-26 | 广西盛隆冶金有限公司 | Method and system for pretreating lateritic nickel ore |
| CN206276488U (en) * | 2016-12-12 | 2017-06-27 | 山西环能工程项目管理有限公司 | A kind of raw ore processing unit of lateritic nickel ore |
| CN206853853U (en) * | 2017-03-07 | 2018-01-09 | 临沂鑫海新型材料有限公司 | A kind of nickel alloy raw material grinding bolting mill |
| CN109290028A (en) * | 2018-09-03 | 2019-02-01 | 中国瑞林工程技术股份有限公司 | A kind of useless ore-dressing technique of low alumina-silicon ratio alumyte dry screen pre-selection throwing |
| CN210022424U (en) * | 2019-04-24 | 2020-02-07 | 合肥中亚建材装备有限责任公司 | Slag and cement combined grinding production line |
| CN112044578A (en) * | 2019-06-05 | 2020-12-08 | 西安瑞德宝尔智能科技有限公司 | Control method and controller of feeding machine |
-
2022
- 2022-06-21 CN CN202210703090.5A patent/CN115212984A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226233A (en) * | 2011-05-27 | 2011-10-26 | 广西盛隆冶金有限公司 | Method and system for pretreating lateritic nickel ore |
| CN206276488U (en) * | 2016-12-12 | 2017-06-27 | 山西环能工程项目管理有限公司 | A kind of raw ore processing unit of lateritic nickel ore |
| CN206853853U (en) * | 2017-03-07 | 2018-01-09 | 临沂鑫海新型材料有限公司 | A kind of nickel alloy raw material grinding bolting mill |
| CN109290028A (en) * | 2018-09-03 | 2019-02-01 | 中国瑞林工程技术股份有限公司 | A kind of useless ore-dressing technique of low alumina-silicon ratio alumyte dry screen pre-selection throwing |
| CN210022424U (en) * | 2019-04-24 | 2020-02-07 | 合肥中亚建材装备有限责任公司 | Slag and cement combined grinding production line |
| CN112044578A (en) * | 2019-06-05 | 2020-12-08 | 西安瑞德宝尔智能科技有限公司 | Control method and controller of feeding machine |
Non-Patent Citations (1)
| Title |
|---|
| 李小明等: "《铁合金生产概论》", vol. 1, 冶金工业出版社, pages: 148 * |
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