Laterite nickel ore blending apparatus

Abstract

Disclosed in the present application is a laterite nickel ore blending apparatus, comprising a plurality of belt conveyor lines, a feeding and mixing module, flow control devices, a data input module and a central control system, wherein the plurality of belt conveyor lines are used for conveying different batches of laterite nickel ore; the feeding and mixing module is arranged at the tail end of the belt conveyor lines and is used for mixing the different batches of laterite nickel ore; and the flow control devices are arranged on each of the belt conveyor lines and are used for adjusting the belt speed to control the flow rates of the different batches of laterite nickel ore. In the present application, different batches of laterite nickel ore are respectively conveyed by means of the plurality of belt conveyor lines, and information of the batches of laterite nickel ore is input into the central control system by means of the data input module, such that on the basis of data information, the central control system controls the flow control devices to regulate the conveying flow rates of laterite nickel ore on the belt conveyor lines, thereby achieving the aim of dynamically blending the batches of laterite nickel ore, and forming a dynamic balance in ore composition.

Description

A laterite nickel ore blending device TECHNICAL FIELD

[0001] The present application relates to the technical field of laterite nickel ore blending, and particularly relates to a laterite nickel ore blending device. BACKGROUND

[0002] In laterite nickel ore smelting, in addition to nickel, the laterite nickel ore also contains a large amount of impurities such as iron, aluminum, magnesium and silicon. The existence of these impurities will affect the extraction efficiency of nickel. By blending, the chemical composition ratio in the laterite nickel ore can be adjusted, so that the smelting process is more efficient.

[0003] Different batches of laterite nickel ore raw materials have different chemical compositions, that is, different contents of nickel, iron, aluminum, magnesium and silicon. When the content of different elements in the laterite nickel ore fluctuates greatly, it will affect the stability of the subsequent treatment process.

[0004] SUMMARY

[0005] The present application aims to overcome the above technical deficiencies and provide a laterite nickel ore blending device to solve the technical problem of the influence of the composition change of different batches of laterite nickel ore raw materials on the stability of the subsequent treatment process in the prior art.

[0006] To achieve the above technical purpose, the present application adopts the following technical scheme:

[0007] The present application provides a laterite nickel ore blending device, comprising:

[0008] A plurality of belt conveying lines are used to convey different batches of laterite nickel ore;

[0009] A feeding and mixing module is arranged at the end of the belt conveying line and is used to mix different batches of laterite nickel ore;

[0010] A flow control device is arranged on each belt conveying line and is used to adjust the belt speed to control the flow of different batches of laterite nickel ore;

[0011] A data input module is used to collect the composition detection data of each batch of laterite nickel ore; and

[0012] A central control system is used to receive the composition detection data of each batch of laterite nickel ore collected by the data input module and calculate the flow ratio according to the composition detection data, and then control the action of the flow control device according to the flow ratio.

[0013] In some embodiments, the flow control device comprises a flow sensor and a frequency converter, the frequency converter is electrically connected with a driving motor of the belt conveying line for adjusting the rotating speed of the driving motor of the belt conveying line, and the flow sensor is installed on the belt conveying line for detecting the flow of the laterite nickel ore.

[0014] In some embodiments, the central control system comprises a data receiving unit, a calculation unit and a control unit, the data receiving unit is electrically connected with the data input module for receiving the composition detection data, the calculation unit is electrically connected with the data receiving unit for calculating the flow ratio according to the composition detection data, and the control unit is electrically connected with the calculation unit and the flow control device for sending a control signal to the flow control device to adjust the belt speed according to the flow ratio calculated by the calculation unit.

[0015] In some embodiments, a remote monitoring module is further included, which is communicatively connected with the central control system for monitoring the running state and flow condition of the belt conveying line in real time.

[0016] In some embodiments, the feed mixing module comprises a first mixing platform, a second mixing platform and a third mixing platform, the first mixing platform, the second mixing platform and the third mixing platform are connected in sequence from top to bottom, the first mixing platform is used for dividing a plurality of belt conveying lines into a plurality of groups and mixing the materials conveyed by each group, the second mixing platform is used for receiving the mixed materials of the first mixing platform and mixing the materials in one direction, and the third mixing platform is used for receiving the mixed materials of the second mixing platform and mixing the materials in a direction opposite to that of the second mixing platform.

[0017] In some embodiments, the feed mixing module further comprises a crushing channel, the crushing channel is arranged at the bottom of the third mixing platform, and the crushing channel is used for receiving the mixed materials of the third mixing platform and crushing large particles.

[0018] In some embodiments, the first mixing platform is in the shape of a circular bucket, a plurality of groups of arc-shaped flow guide channels are arranged on the first mixing platform, the number of the arc-shaped flow guide channels in each group is multiple, each group of the arc-shaped flow guide channels corresponds to one belt conveying line, and the arc-shaped flow guide channels in one group are all downwardly inclined and converge at the bottom end.

[0019] In some embodiments, the bottom end convergence of each group of the arc-shaped flow guide channels is provided with a first stirring mechanism.

[0020] In some embodiments, the second mixing platform is arranged at the bottom of the first mixing platform, and a second stirring mechanism is arranged in the second mixing platform, the second mixing platform is also in the shape of a circular bucket, and the slope of the second mixing platform is smaller than that of the first mixing platform.

[0021] In some embodiments, the tertiary mixing platform comprises a cylindrical part and a round-bottomed bucket connected to the bottom of the cylindrical part, the cylindrical part is arranged at the bottom of the secondary mixing platform, and a third stirring mechanism is arranged on the inner side of the cylindrical part for stirring the material on the cylindrical part and the round-bottomed bucket.

[0022] Compared with the prior art, the laterite nickel ore blending equipment provided by the application can dynamically blend each batch of laterite nickel ore by respectively conveying different batches of laterite nickel ore through a plurality of belt conveying lines, inputting the information of each batch of laterite nickel ore into the central control system through a data input module, and controlling the flow control device according to the data information to control the conveying flow of each belt conveying line, so as to dynamically blend each batch of laterite nickel ore and form a dynamic balance of the composition of the ore, thereby avoiding the instability of the subsequent processing process caused by the change of the composition of the laterite nickel ore. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a structural schematic diagram of the laterite nickel ore blending equipment provided by the embodiment of the application;

[0024] Fig. 2 is a structural block diagram of the central control system of the laterite nickel ore blending equipment provided by the embodiment of the application;

[0025] Fig. 3 is a structural top view schematic diagram of the feeding and mixing module of the laterite nickel ore blending equipment provided by the embodiment of the application;

[0026] Fig. 4 is a structural front view schematic diagram of the feeding and mixing module of the laterite nickel ore blending equipment provided by the embodiment of the application.

[0027] Explanation of reference signs:

[0028] 1, belt conveying line; 2, feeding and mixing module; 21, primary mixing platform; 2101, arc-shaped flow guide; 2102, first stirring mechanism; 22, secondary mixing platform; 2201, second stirring mechanism; 23, tertiary mixing platform; 231, cylindrical part; 232, round-bottomed bucket; 2301, third stirring mechanism; 24, crushing channel; 3, flow control device; 31, flow sensor; 32, frequency converter; 4, central control system; 41, data receiving unit; 42, calculation unit; 43, control unit; 5, data input module; 6, remote monitoring module; 7, laterite nickel ore raw material pile. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the application more clear and explicit, the application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and do not limit the application.

[0030] In order to solve the technical problem of the influence of the composition change of different batches of laterite nickel ore raw materials on the stability of the subsequent treatment process, the application provides a laterite nickel ore blending equipment, which can control the feed ratio by controlling the flow of different belt lines, and design an automatic control system to realize automatic control and remote control of the flow.

[0031] It should be noted that the laterite nickel ore blending equipment described in the application is used for, but not limited to, blending of laterite nickel ore. For the convenience of description, in the application, only the application of the laterite nickel ore blending equipment in blending of laterite nickel ore is taken as an example for description, and the principle of the application of the laterite nickel ore blending equipment in other ore blending is substantially the same as that in the blending of laterite nickel ore, which will not be described here.

[0032] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of the laterite nickel ore blending equipment in an embodiment of the application. The laterite nickel ore blending equipment comprises a plurality of belt conveying lines 1, a feed mixing module 2, a flow control device 3, a central control system 4 and a data input module 5. The plurality of belt conveying lines 1 are used to convey different batches of laterite nickel ore. The feed mixing module 2 is arranged at the end of the belt conveying line 1 and is used to mix different batches of laterite nickel ore. The flow control device 3 is arranged on each of the belt conveying lines 1 and is used to adjust the belt speed to control the flow of different batches of laterite nickel ore. The central control system 4 is used to receive the composition detection data of each batch of laterite nickel ore collected by the data input module 5, calculate the flow ratio according to the composition detection data, and then control the action of the flow control device 3 according to the flow ratio. The data input module 5 is used to input the composition detection data of each batch of laterite nickel ore into the central control system 4. When each batch of laterite nickel ore arrives, its composition content is detected manually, and its batch and composition content can be directly input into the central control system 4 through the data input module 5 in the laboratory. The flow control device 3 is correspondingly arranged at the feed end of the belt conveying line 1. When the batch of laterite nickel ore raw material pile 7 is replaced, the central control system 4 calls the composition content of the batch of laterite nickel ore and the composition content of the laterite nickel ore being conveyed by the other several belt lines for ratio, automatically calculates the flow of the several belt lines and controls the automatic regulation of the belt machine to ensure that the feed requirement is met.

[0033] In one embodiment, referring to FIG. 1, in order to control the flow of the mineral conveying line 1, the flow control device 3 includes a flow sensor 31 and a frequency converter 32, the frequency converter 32 is electrically connected with the driving motor of the mineral conveying line 1, used to adjust the rotating speed of the driving motor of the mineral conveying line 1, the flow sensor 31 is installed on the mineral conveying line 1, used to detect the flow of laterite nickel ore. The flow sensor detects the flow of the mineral and the frequency converter controls the speed of the belt conveying, which is a common technical application in industrial automation. These two technical means are used to monitor and adjust the conveying amount of the material respectively, to ensure the stable and controllable supply of the material in the production process. Among them, the flow sensor can adopt a weight sensor, a photoelectric sensor or an ultrasonic sensor which can detect the flow, among which the weight sensor calculates the flow by measuring the weight of the mineral on the conveying belt; the photoelectric sensor estimates the flow by emitting and receiving light beams and detecting the situation of blocking light when the material passes; the ultrasonic sensor estimates the flow by measuring the change of the material accumulation height by emitting and receiving ultrasonic signals. The type of sensor is not limited to one or more, which can be used to detect the flow to obtain more accurate detection data. In addition, the frequency converter is a device used to adjust the rotating speed of the motor, which can realize stepless adjustment of the rotating speed of the motor by changing the frequency of the power supply of the motor. In the mineral conveying system, the frequency converter is usually used to control the speed of the belt conveyor to adapt to different production needs.

[0034] In one embodiment, referring to FIG. 2, the central control system 4 includes a data receiving unit 41, a calculation unit 42 and a control unit 43, the data receiving unit 41 is electrically connected with the data input module 5, used to receive the composition detection data from the laboratory; the calculation unit 42 is electrically connected with the data receiving unit 41, used to calculate the flow ratio according to the composition detection data; the control unit 43 is electrically connected with the calculation unit 42 and the flow control device 3, used to send control signals to the flow control device 3 to adjust the belt speed according to the flow ratio calculated by the calculation unit 42.

[0035] Further, referring to FIG. 1, the laterite nickel ore blending equipment also includes a remote monitoring module 6, the remote monitoring module 6 is in communication connection with the central control system 4, used to monitor the running state and flow condition of the mineral conveying line 1 in real time, among which the remote monitoring module 6 communicates with the central control system 4 to allow the user to remotely control the equipment, such as adjusting parameters, starting or stopping the equipment, etc.

[0036] In one of the embodiments, referring to Figures 3 and 4, in order to mix the mineral materials uniformly in the case of multiple batches of mineral materials being transported by multiple belt conveying lines 1, the feeding and mixing module 2 comprises a first mixing platform 21, a second mixing platform 22 and a third mixing platform 23, which are connected in sequence from top to bottom, the first mixing platform 21 is used to divide the multiple belt conveying lines 1 into multiple groups, and mix the materials transported by each group respectively, the second mixing platform 22 is used to receive the materials mixed by the first mixing platform 21 and mix the materials in one direction, and the third mixing platform 23 is used to receive the materials mixed by the second mixing platform 22 and mix the materials in the opposite direction. Through the grouping, the multiple batches of mineral materials are mixed in detail, and the materials in each group are mixed first, and then the multiple groups are mixed, and through the mixing in two directions, the existing mixing is carried out, the uniformity of the mixing is improved, and the situation that the materials are not mixed uniformly in the case of multiple batches and multiple lines is avoided.

[0037] Preferably, the number of the groups of belt conveying lines 1 is two, and the multiple groups of belt conveying lines 1 are distributed in a circular manner around the first mixing platform 21, and are tangent to the second mixing platform 22 in a smooth arc.

[0038] Further, the first mixing platform 21 is in the shape of a circular bucket, and when the mineral materials enter, the materials can slide to the center along the conical wall of the circular bucket, the first mixing platform 21 is provided with a plurality of groups of arc-shaped flow guide channels 2101, the number of the arc-shaped flow guide channels 2101 in each group is multiple, and each arc-shaped flow guide channel 2101 corresponds to one belt conveying line 1, and the arc-shaped flow guide channels 2101 in each group are all inclined downward and converge at the bottom, through the arc-shaped flow guide, the mineral materials have a certain acceleration, and the materials collide at the convergence to form a certain mixing effect.

[0039] Further, the convergence of the arc-shaped flow guide channels 2101 in each group is provided with a first stirring mechanism 2102, which improves the mixing degree of the mineral materials at the convergence.

[0040] Further, the second mixing platform 22 is arranged at the bottom of the first mixing platform 21, and is provided with a second stirring mechanism 2201, the second mixing platform 22 is also in the shape of a circular bucket, and the slope of the second mixing platform 22 is smaller than that of the first mixing platform 21, through reducing the slope, the speed of the mineral materials feeding downward is slowed down, and the second stirring mechanism 2201 is used for stirring to improve the mixing degree.

[0041] Further, the third mixing platform 23 comprises a cylinder part 231 and a round bottom 232 connected to the bottom of the cylinder part 231, the cylinder part 231 is arranged at the bottom of the second mixing platform, the inner side of the cylinder part 231 is provided with a third stirring mechanism 2301 for stirring the material on the cylinder part 231 and the round bottom 232, the stirring direction is opposite to that of the second stirring mechanism 2201, forming a comprehensive stirring effect, and the homogenization effect is better.

[0042] Further, the feeding and mixing module 2 further comprises a crushing channel 24 arranged at the bottom of the third mixing platform 23, the crushing channel 24 is used to receive the mixed material of the third mixing platform 23 and crush the large particles, in order to avoid that there are still large particles in the mixed material, the crushing mechanism built in the crushing channel 24 is used to crush the material, the crushing action also has a certain stirring effect on the material, which can improve the uniformity of the material and the particle uniformity.

[0043] It can be understood that if the large particles of the material are more, the crushing channel 24 can be arranged at the end of each belt conveying line 1, and each batch of material is crushed and then mixed.

[0044] In order to better understand the present application, the technical solutions of the present application will be described in detail in combination with figures 1 to 4:

[0045] The staff first analyzes the composition of each batch of laterite nickel ore in the laboratory, including metal content, particle size distribution, moisture and other parameters, and then inputs the central control system 4 through the data input module 5; at the same time, a plurality of belt conveying lines 1 start to work, each line is responsible for conveying different batches of laterite nickel ore, the flow sensor 31 installed on the belt conveying line 1 monitors the conveying amount in real time, the central control system 4 controls the frequency converter 32 to adjust the belt speed according to the composition data of each batch, so as to control the flow ratio of different batches of raw materials, so that the composition of each element of the multiple batches of material is relatively stable in the ore blending, and the influence on the subsequent process is avoided; finally, the multiple batches of material are mixed by the first mixing platform 21, the second mixing platform 22 and the third mixing platform 23, and the crushing channel 24 is used to crush the large particles, so as to improve the particle uniformity of the material and the uniformity of the mixing.

[0046] The specific embodiments of the present application described above do not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An ore blending device for laterite nickel ore, characterized by, include: Multiple belt conveyor lines are used to transport different batches of laterite nickel ore; A feeding and mixing module, located at the end of the belt conveyor line, is used to mix different batches of laterite nickel ore. A flow control device, which is installed on each of the belt conveyor lines, is used to adjust the belt speed to control the flow rate of different batches of laterite nickel ore; The data input module is used to collect the compositional analysis data of each batch of laterite nickel ore; as well as The central control system is used to receive the component detection data of each batch of laterite nickel ore collected by the data input module, calculate the flow ratio based on the component detection data, and control the operation of the flow control device according to the flow ratio.

2. The laterite nickel ore blending plant according to claim 1, characterized in that The flow control device includes a flow sensor and a frequency converter. The frequency converter is electrically connected to the drive motor of the belt conveyor and is used to adjust the speed of the drive motor of the belt conveyor. The flow sensor is installed on the belt conveyor and is used to detect the flow rate of laterite nickel ore.

3. The laterite ore blending plant according to claim 1, characterized in that, The central control system includes a data receiving unit, a calculation unit, and a control unit. The data receiving unit is electrically connected to the data input module and is used to receive component detection data. The calculation unit is electrically connected to the data receiving unit and is used to calculate the flow ratio based on the component detection data. The control unit is electrically connected to the calculation unit and the flow control device and is used to send a control signal to the flow control device to adjust the belt speed based on the flow ratio calculated by the calculation unit.

4. The laterite ore blending plant of claim 1, wherein, It also includes a remote monitoring module, which is communicatively connected to the central control system and is used to monitor the operating status and flow rate of the belt conveyor in real time.

5. The laterite ore blending plant of claim 1, wherein, The feeding and mixing module includes a primary mixing platform, a secondary mixing platform, and a tertiary mixing platform, which are connected sequentially from top to bottom. The primary mixing platform is used to divide multiple belt conveyor lines into multiple groups and mix the materials conveyed by each group. The secondary mixing platform is used to receive the materials mixed by the primary mixing platform and perform mixing in one direction. The tertiary mixing platform is used to receive the materials mixed by the secondary mixing platform and perform mixing in the opposite direction.

6. The laterite ore blending plant according to claim 5, characterized in that, The feeding and mixing module also includes a crushing channel, which is located at the bottom of the three-stage mixing platform. The crushing channel is used to receive the materials mixed by the three-stage mixing platform and to crush large particles.

7. The laterite ore blending plant according to claim 6, characterized in that The primary mixing platform is shaped like a bucket and has several sets of arc-shaped guide channels. Each set has multiple arc-shaped guide channels, each corresponding to one of the belt conveyors. The arc-shaped guide channels in each set are all inclined downwards and converge at the bottom.

8. The laterite ore blending plant of claim 7, wherein, A first stirring mechanism is provided at the bottom confluence of each set of arc-shaped guide channels.

9. The laterite ore blending plant of claim 8, wherein, The secondary mixing platform is located at the bottom of the primary mixing platform and has a second stirring mechanism inside it. The secondary mixing platform is also shaped like a hopper and its slope is less than that of the primary mixing platform.

10. The laterite nickel ore blending plant according to claim 9, characterized in that, The third mixing platform comprises a cylinder part and a round hopper bottom connected to the bottom of the cylinder part, the cylinder part is arranged at the bottom of the second mixing platform, and a third stirring mechanism is arranged at the inner side of the cylinder part to stir the materials on the cylinder part and the round hopper bottom.

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