Full-automatic conveying control system for laterite nickel ore

Abstract

The utility model discloses a kind of laterite nickel ore full-automatic conveying control system, including batching bin, bidirectional belt conveyor, rotary kiln, the batching bin is installed with several stick valves, radar material level meter is installed on the batching bin, the bidirectional belt conveyor is provided with several, the position of rotary kiln and bidirectional belt conveyor corresponds, bidirectional belt conveyor can flexibly control raw material in two conveying directions selects one conveying direction, raw material is sent to rotary kiln, ensure the continuity and flexibility of raw material in production process, radar material level meter detects the height of raw material in batching bin, realizes the real-time monitoring of material level, the amount of raw material conveyed by bidirectional belt conveyor can be detected, improve the accuracy and efficiency of batching, by the design of stick valve and reversible belt conveyor, raw material flow and flow direction can be automatically adjusted, two rotary kiln feeding can realize mutual standby, ensure the continuity of production.

Description

Technical Field

[0001] This utility model relates to the field of laterite nickel ore conveying technology, specifically a fully automatic laterite nickel ore conveying control system. Background Technology

[0002] With the continuous growth of global demand for nickel metal, nickel ore mining and smelting technologies are receiving increasing attention. Due to the uneven distribution and diverse composition of laterite nickel ore resources, nickel production faces challenges such as unstable raw material supply and low production efficiency.

[0003] In related technologies, laterite nickel ore with a nickel content of 0.8% to 1.5% is used in the nickel production process. Due to significant differences in the composition of laterite nickel ore from different shipments, it is necessary to use 4-5 different shipments of laterite nickel ore for blending to meet smelting requirements. In practice, the proportion of each type of laterite nickel ore is usually controlled below 30%. However, when the nickel ore composition is poor, the proportion of laterite nickel ore from individual shipments may increase, exceeding the conventional blending range. In this case, the existing conveyor belts and batching bins cannot meet the demand, not only increasing the workload of manual handling and reducing production efficiency, but also increasing safety hazards in the production process. Furthermore, frequent manual intervention also affects the accuracy and stability of batching, adversely impacting the quality of the smelted products. Utility Model Content

[0004] The purpose of this invention is to provide a fully automatic conveying and control system for laterite nickel ore to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic conveying control system for laterite nickel ore, including a batching silo, on which a plurality of bar valves are installed, the opening and closing of which controls the discharge of raw materials from the batching silo, and a radar level gauge is installed on which the radar level gauge detects the material level in the batching silo, thereby improving the accuracy and efficiency of batching.

[0006] A bidirectional belt conveyor is provided, wherein several bidirectional belt conveyors are set up and correspond to the positions of the bar valves. The bidirectional belt conveyors receive and transport the raw materials discharged from the bar valves. The bidirectional belt conveyors can provide raw materials for two rotary kilns, thereby improving the flexibility of raw material transportation.

[0007] A rotary kiln, which is positioned corresponding to a bidirectional belt conveyor, receives raw materials conveyed by the bidirectional belt conveyor and processes the raw materials.

[0008] The sampler is connected to the batching silo and quantitatively extracts the raw materials from the batching silo. It can be used for random sampling of raw materials to facilitate the inspection of nickel content in the raw materials.

[0009] Furthermore, the batching silo is equipped with a feeding mechanism that provides raw materials to the batching silo. A radar level gauge detects the material level and provides signals for the start and stop of the feeding mechanism. The feeding mechanism includes a storage shed, which is equipped with a second conveyor belt that transports raw materials to the batching silo. The storage shed is equipped with a drying kiln, and a first conveyor belt is provided between the drying kiln and the storage shed to realize the supply of raw materials for drying in the batching silo and ensure that the raw materials are stored dry in the batching silo.

[0010] Furthermore, the batching silo is connected to an air cannon to prevent the laterite nickel ore raw material from sticking to the inner wall of the batching silo.

[0011] Furthermore, the sampler includes a star-shaped unloader and a material cart, enabling quantitative extraction of raw materials with good sealing performance to prevent leakage.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The bidirectional belt conveyor can flexibly control the raw materials to choose one of the two conveying directions and send the raw materials to the rotary kiln, ensuring the continuity and flexibility of raw materials in the production process.

[0014] (2) Radar level gauge detects the height of raw materials in the batching bin, realizing real-time monitoring of material level. The amount of raw materials conveyed by the bidirectional belt conveyor can be detected, improving the accuracy and efficiency of batching.

[0015] (3) Through the design of bar valve and reversible belt conveyor, the flow rate and direction of raw materials can be automatically adjusted. The two rotary kilns can be used as backups for each other to ensure the continuity of production. At the same time, the raw materials can be blocked during maintenance to ensure the stability and safety of the production process.

[0016] (4) The batching bin is equipped with an air cannon. Air is sprayed to remove the raw materials from the inner wall of the batching bin and restore the flow of raw materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the conveying control structure of this utility model.

[0018] In the diagram: 1. Drying kiln; 2. First conveyor belt; 3. Storage shed; 4. Second conveyor belt; 5. Radar level gauge; 6. Batching silo; 7. Air cannon; 8. Rotary rotary valve; 9. Material car; 10. Bar valve; 11. Bidirectional belt conveyor; 12. Rotary kiln. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] Please see Figure 1 This utility model provides a technical solution: a fully automatic conveying control system for laterite nickel ore, including a batching bin 6, on which a plurality of bar valves 10 are installed. The opening and closing of the bar valves 10 controls the discharge of raw materials from the batching bin 6. A radar level gauge 5 is installed on the batching bin 6. The radar level gauge 5 is located at the upper end of the batching bin 6 and can detect the material level in the batching bin 6. The plurality of bar valves 10 provide raw materials to the corresponding bidirectional belt conveyors 11.

[0022] A bidirectional belt conveyor 11 is provided, and several bidirectional belt conveyors 11 are provided and correspond to the positions of the bar valves 10. The bidirectional belt conveyors 11 receive and transport the raw materials discharged from the bar valves 10. The bidirectional belt conveyors 11 can transport the raw materials to the left or right, and provide raw materials to a rotary kiln 12 as needed, making the raw material transportation more flexible.

[0023] Rotary kiln 12, which is positioned corresponding to bidirectional belt conveyor 11, receives raw materials conveyed by bidirectional belt conveyor 11, and performs drying and roasting pre-reduction on laterite nickel ore raw materials.

[0024] The sampler is connected to the batching bin 6 and quantitatively extracts the raw materials from the batching bin 6. It can perform random sampling of the raw materials and check the nickel content in the raw materials.

[0025] In this embodiment, the batching bin 6 is equipped with a feeding mechanism, which provides raw materials to the batching bin 6. The radar level gauge 5 detects the material level and provides a signal for starting and stopping the feeding mechanism. When the radar level gauge 5 detects that the material level is lower than the threshold, the feeding mechanism starts to work. When the radar level gauge 5 detects that the material level reaches the preset height, the feeding mechanism stops working.

[0026] In this embodiment, as Figure 1 As shown, the feeding mechanism includes a storage shed 3, which is equipped with a second conveyor belt 4. The second conveyor belt 4 transports raw materials to the batching bin 6. The start and stop of the second conveyor belt 4 is provided by a radar level gauge 5. The storage shed 3 stores dry raw materials.

[0027] In this embodiment, as Figure 1As shown, the storage shed 3 is equipped with a drying kiln 1, and a first conveyor belt 2 is provided between the drying kiln 1 and the storage shed 3. The drying kiln 1 dries the raw materials, which can prevent the raw materials from sticking together and improve the flowability of the raw materials, which is conducive to the rapid discharge of the raw materials from the bar valve 10.

[0028] In this embodiment, the batching bin 6 is connected to an air cannon 7. The air cannon 7 includes an air tank, a quick-release valve with a triggering device, and a nozzle. It distributes air bursts as needed to most effectively remove accumulated raw materials. At key locations in the batching bin 6, when compressed air (or other inert gas) in the air tank is suddenly released by the quick-release valve, it is sprayed onto specific or general locations through specially designed nozzles, depending on the nozzle design. The bursting airflow helps to break down the accumulated raw materials, allowing them to resume normal flow.

[0029] In this embodiment, the bidirectional belt conveyor 11 is a reversible belt conveyor, which can transport raw materials in both left and right directions, thereby improving the flexibility of raw material transportation.

[0030] In this embodiment, the sampler includes a star-shaped unloader 8 and a material cart 9. The rotation of the star-shaped unloader 8 can discharge materials from the batching bin 6 into the material cart 9, thereby realizing the sampling inspection of raw materials.

[0031] Specifically, during use, the laterite nickel ore raw material is dried in the drying kiln 1 to a more fluid state. The first conveyor belt 2 sends the raw material to the storage shed 3 for storage. When using the raw material, the second conveyor belt 4 sends the raw material to the batching bin 6. The radar level gauge 5 detects the material level of the raw material in the batching bin 6. When the material level reaches the specified height, the radar level gauge 5 sends a signal to the second conveyor belt 4 to stop conveying.

[0032] After the bar valve 10 is opened, the raw material flows from the bar valve 10 to the corresponding bidirectional belt conveyor 11. Several bidirectional belt conveyors 11 are set up to provide raw materials for two rotary kilns 12. The radar level gauge 5 detects the material level in the batching bin 6 to improve the accuracy of batching.

[0033] The feeding of the two rotary kilns 12 serves as a backup for each other, ensuring continuous production and eliminating the need for manual handling of dry ore, thereby significantly reducing labor costs and improving work efficiency.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic conveying control system for laterite nickel ore, characterized in that, include: A batching bin (6) is provided with several bar valves (10). The opening and closing of the bar valves (10) controls the discharge of raw materials from the batching bin (6). A radar level gauge (5) is provided on the batching bin (6). A bidirectional belt conveyor (11) is provided, and several bidirectional belt conveyors (11) are provided and correspond to the positions of the bar valves (10). The bidirectional belt conveyors (11) receive and transport the raw materials discharged from the bar valves (10). Rotary kiln (12), the rotary kiln (12) is positioned corresponding to the bidirectional belt conveyor (11), the rotary kiln (12) receives the raw materials conveyed by the bidirectional belt conveyor (11); A sampler is connected to the batching bin (6) to quantitatively extract raw materials from the batching bin (6).

2. The fully automatic conveying control system for laterite nickel ore according to claim 1, characterized in that: The batching bin (6) is equipped with a feeding mechanism, which provides raw materials to the batching bin (6). The radar level gauge (5) detects the material level and provides signals for the start and stop of the feeding mechanism.

3. The fully automatic conveying control system for laterite nickel ore according to claim 2, characterized in that: The feeding mechanism includes a storage shed (3), which is equipped with a second conveyor belt (4) for conveying raw materials to the batching bin (6).

4. The fully automatic conveying control system for laterite nickel ore according to claim 3, characterized in that: The storage shed (3) is equipped with a drying kiln (1), and a first conveyor belt (2) is provided between the drying kiln (1) and the storage shed (3).

5. The fully automatic conveying control system for laterite nickel ore according to claim 1, characterized in that: The ingredient hopper (6) is connected to an air cannon (7).

6. The fully automatic conveying control system for laterite nickel ore according to claim 1, characterized in that: The bidirectional belt conveyor (11) is a reversible belt conveyor.

7. The fully automatic conveying control system for laterite nickel ore according to claim 1, characterized in that: The sampler includes a star-shaped unloader (8) and a material cart (9).

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