Intelligent material batching and feeding equipment

Abstract

The utility model provides intelligent material batching and feeding equipment. The intelligent material batching and feeding equipment comprises a main belt conveyor, two first feeding devices and two second feeding devices, wherein the two first feeding devices and the two second feeding devices are arranged at the main belt conveyor; the first feeding device comprises a first stock bin, a roller screening machine and a first weighing belt conveyor are sequentially arranged between the first stock bin and the main belt conveyor in the conveying direction, and a returned material conveying belt is arranged below the roller screening machine. The second feeding device comprises a second stock bin, and a vibrating feeder and a second weighing belt conveyor are sequentially arranged between the second stock bin and the main belt conveyor in the conveying direction. The intelligent material proportioning and feeding equipment provided by the utility model solves the technical problems of unreasonable material proportioning, untimely feeding and inaccurate feeding amount control in the pyrometallurgy technology in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of automated recycling technology for polymetallic mineral tailings, specifically to an intelligent equipment for material batching and feeding. Background Technology

[0002] Polymetallic mineral tailings contain large amounts of sulfates. On the one hand, lead sulfate has a high smelting temperature; on the other hand, it contains lead oxides in different valence states. Without proper recycling and effective utilization, it easily creates new sources of pollution such as lead dust and sulfur dioxide, and leads to further waste of resources. Therefore, the selection of treatment technologies is not only about reducing costs and improving quality, but also about providing a strong guarantee for environmental protection, pollution control, and sustainable development. Currently, the main processes for recovering polymetallic mineral tailings include pyrometallurgical methods, hydrometallurgical methods, and combined beneficiation and smelting methods.

[0003] Pyrometallurgical technology is a method of obtaining rare and precious metals by adding reducing agents such as carbon powder and iron filings, and using specialized furnace types such as reverberatory furnaces, rotary furnaces, and blast furnaces for smelting. There are two main methods for pyrometallurgical smelting: one is to directly smelt mineral tailings, and the other is to convert them into carbonates or hydroxides for smelting.

[0004] Traditional pyrometallurgical processes suffer from problems such as unreasonable material ratios, untimely feeding, and inaccurate control of feeding amounts. Utility Model Content

[0005] To address the technical problems of unreasonable material proportioning, untimely feeding, and inaccurate feeding control in existing pyrometallurgical technologies, this utility model provides an intelligent equipment for material batching and feeding.

[0006] An intelligent material batching and feeding equipment includes a main belt conveyor and two first feeding devices and two second feeding devices located at the main belt conveyor; the first feeding device includes a first hopper, and a roller screen and a first weighing belt are sequentially arranged between the first hopper and the main belt conveyor along the conveying direction, and a return conveyor belt is arranged below the roller screen; the second feeding device includes a second hopper, and a vibrating feeder and a second weighing belt are sequentially arranged between the second hopper and the main belt conveyor along the conveying direction.

[0007] In a preferred embodiment of the intelligent material batching and feeding equipment provided by this utility model, the feed inlet of the roller screen is located below the discharge outlet of the first silo, and the discharge outlet is located above the feed inlet of the first weighing belt conveyor; the discharge outlet of the first weighing belt conveyor is located above the main belt conveyor; the feed inlet of the vibrating feeder is located below the discharge outlet of the second silo, and the discharge outlet is located above the feed inlet of the second weighing belt conveyor; the discharge outlet of the second weighing belt conveyor is located above the main belt conveyor.

[0008] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, both the discharge port of the first silo and the discharge port of the second silo are equipped with pallet gate valves.

[0009] In a preferred embodiment of the intelligent material batching and feeding equipment provided by this utility model, a PLC control device is further provided. The PLC control device is electrically connected to the main belt conveyor, the roller screening machine, the first weighing belt conveyor, the return conveyor belt, the vibrating feeder, the second weighing belt conveyor, and the jaw gate valve.

[0010] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, feeding devices are provided at both the first hopper and the second hopper.

[0011] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, the feeding device is a grab bucket.

[0012] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, the feeding device is a crane.

[0013] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, the first silo, the second silo, the roller screening machine, the first weighing belt conveyor, the second weighing belt conveyor, the return conveyor belt, and the vibrating feeder are each provided with a dust suction port at their respective inlet and outlet; the dust suction port is connected to a bag filter through a pipe.

[0014] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, a negative pressure fan is provided on the pipe between the bag dust collector and the dust suction port.

[0015] In a preferred embodiment of the intelligent equipment for material batching and feeding provided by this utility model, the two first silos are respectively filled with blocky polymetallic materials and coke; the two second silos are respectively filled with limestone and copper slag.

[0016] Compared to existing technologies, the intelligent material batching and feeding equipment provided by this utility model, through the setting of the roller screen and the vibrating feeder, achieves uniform feeding, which also improves the metering accuracy of the first and second weighing belt conveyors. By using the first or second feeding device to feed and batch different materials in different ways, the feeding is more timely and the feeding amount is easier to control. The pallet gate valve can control the material falling. Each pallet gate valve can be controlled individually or in conjunction with others, playing a very important role in normal operation, shutdown, or fault repair. Coke and lumpy polymetallic materials are separated into small particles smaller than 3 cm by the roller screen to meet the minimum particle size requirements of the furnace feed material. Dust is collected and the air is purified by the cooperation of the dust suction port, the negative pressure fan, and the bag filter. Through PLC control, the timing, quantity, and ratio are controllable, and the flexible human-machine switching mode can achieve efficient and accurate batching and feeding. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an intelligent equipment for material batching and feeding provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first feeding device in an intelligent equipment for material batching and feeding provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second feeding device in an intelligent material batching and feeding equipment provided by this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please refer to the following: Figures 1 to 3 These are schematic diagrams of the structure of an intelligent material batching and feeding equipment provided by this utility model, as well as schematic diagrams of the structure of the first feeding device and the structure of the second feeding device therein.

[0022] The intelligent equipment for material batching and feeding includes a main belt conveyor 1 and two first feeding devices 15 and two second feeding devices 16 located on the conveying line of the main belt conveyor 1.

[0023] The first feeding device 15 includes a first hopper 51, a roller screen 3, a first weighing conveyor belt 21, and a return conveyor belt 7. The discharge port of the first hopper 51 is equipped with a jaw gate valve 4. The inlet of the roller screen 3 is located below the discharge port of the first hopper 51, and the discharge port is located above the inlet of the first weighing conveyor belt 21. The roller screen 3 is inclined, with its inlet higher than its discharge port. The discharge port of the first weighing conveyor belt 21 is located above the main conveyor belt 1. The return conveyor belt 7 is inclined, with its discharge port higher than its inlet, and one end of its inlet located below the conveying path of the roller screen 3.

[0024] The second feeding device 16 includes a second hopper 52, a vibrating feeder 9, and a second weighing conveyor belt 22. The discharge port of the second hopper 52 is also equipped with a jaw gate valve 4. The inlet of the vibrating feeder 9 is located below the discharge port of the second hopper 52, and the discharge port is located above the inlet of the second weighing conveyor belt 22. The discharge port of the second weighing conveyor belt 22 is located above the main conveyor belt 1.

[0025] Both the first silo 51 and the second silo 52 are equipped with a feeding device, which is a grab bucket 6 located above the first silo 51 and the second silo 52; the feeding device can also be a crane lifting ton bags to feed the first silo 51 and the second silo 52. In this embodiment, the grab bucket 6 is used for the feeding operation.

[0026] Each of the first silo 51, the second silo 52, the roller screening machine 3, the first weighing belt conveyor 21, the second weighing belt conveyor 22, the return conveyor belt 7, and the vibrating feeder 9 is equipped with a dust suction port (not shown in the figure) at both its inlet and outlet. The dust suction port is connected to a bag filter 14 via a pipe (not shown in the figure). A negative pressure fan (not shown in the figure) is installed on the pipe between the bag filter 14 and the dust suction port.

[0027] It also includes a PLC control device, which is electrically connected to the main belt conveyor 1, the roller screening machine 3, the first weighing belt conveyor 21, the return conveyor belt 7, the vibrating feeder 9, the second weighing belt conveyor 22, and the jaw gate valve 4.

[0028] In specific implementation, the first hoppers 51 of the two first feeding devices 15 are respectively located in the blocky multi-metal material bin 10 and the coke bin 11; the discharge points of the two return conveyor belts 7 are respectively located above the two raw material return zones 8.

[0029] The second hoppers 52 of the two second feeding devices 16 are respectively located in the limestone bin 12 and the copper slag bin 13.

[0030] The lumpy polymetallic material in the lumpy polymetallic material bin 10 is fed into the corresponding first material bin 51 by the corresponding grab bucket 6. The lumpy polymetallic material enters the roller screen 3 through the jaw gate valve 4. As the roller screen 3 rotates, lumpy polymetallic material smaller than the preset size falls from the gap between the rollers of the roller screen 3 onto the return conveyor belt 7 below, and is conveyed by the return conveyor belt 7 to the corresponding raw material return area 8; lumpy polymetallic material larger than the preset size falls from the end outlet of the roller screen 3 onto the first weighing conveyor belt 21, is weighed by the first weighing conveyor belt 21, and is then conveyed to the main conveyor belt 1.

[0031] The coke conveying method in the coke bin 11 is the same as the conveying method of the block polymetallic material in the block polymetallic material bin 10, and will not be described again here.

[0032] The limestone in the limestone bin 12 is fed into the corresponding second bin 51 by the corresponding grab bucket 6, and then enters the vibrating feeder 9 through the jaw gate valve 4. Under the action of the vibrating feeder 9, the limestone is evenly fed onto the second weighing belt conveyor 22, weighed by the second weighing belt conveyor 22, and then conveyed to the main belt conveyor 1.

[0033] The copper slag conveying method in the copper slag bin 13 is the same as the limestone conveying method in the limestone bin 12, and will not be described again here.

[0034] The blocky multimetal material bin 10, the coke bin 11, the limestone bin 12, and the copper slag bin 13 are arranged side by side along the main belt conveyor 1.

[0035] The bulk polymetallic materials and coke are separated by the roller screen 3. The large pieces of material are weighed and then sent to the main belt conveyor 1, and then enter the blast furnace for pyrometallurgical smelting.

[0036] Limestone and copper slag are evenly fed to the second weighing belt conveyor 22 by the vibrating feeder 9, weighed, and then fed onto the main belt conveyor 1, and finally enter the blast furnace for pyrometallurgical smelting.

[0037] During the conveying process of lumpy polymetallic materials, coke, limestone and copper slag, the air inlet is drawn in by the negative pressure fan, and the dust gas is removed by the bag filter 14.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An intelligent equipment for material batching and feeding, characterized in that: The main belt conveyor is provided with two first feeding devices and two second feeding devices; the first feeding device comprises a first bin, which is sequentially provided with a roller screen and a first weighing belt conveyor along the conveying direction between the first bin and the main belt conveyor, and a return conveying belt is arranged below the roller screen; the second feeding device comprises a second bin, which is sequentially provided with a vibrating feeder and a second weighing belt conveyor along the conveying direction between the second bin and the main belt conveyor. 2.The material batching and feeding intelligent equipment according to claim 1, characterized in that: The feeding inlet of the roller screen is arranged below the discharging outlet of the first bin, and the discharging outlet is arranged above the feeding inlet of the first weighing belt conveyor; the discharging outlet of the first weighing belt conveyor is arranged above the main belt conveyor; the feeding inlet of the vibrating feeder is arranged below the discharging outlet of the second bin, and the discharging outlet is arranged above the feeding inlet of the second weighing belt conveyor; the discharging outlet of the second weighing belt conveyor is arranged above the main belt conveyor. 3.The material batching and feeding intelligent equipment according to claim 2, characterized in that: The discharging outlets of the first bin and the second bin are each provided with a flap gate valve.

4. The intelligent material batching and feeding equipment according to claim 3, characterized in that: A PLC control device is further arranged, which is electrically connected with the main belt conveyor, the roller screen, the first weighing belt conveyor, the return conveying belt, the vibrating feeder, the second weighing belt conveyor and the flap gate valve. 5.The material batching and feeding intelligent equipment according to claim 1, characterized in that: The first bin and the second bin are each provided with a feeding device. 6.The material batching and feeding intelligent equipment according to claim 5, characterized in that: The feeding device is a grab bucket. 7.The material batching and feeding intelligent equipment according to claim 5, characterized in that: The feeding device is a travelling crane. 8.The material batching and feeding intelligent equipment according to claim 1, characterized in that: The feeding inlets and the discharging outlets of the first bin, the second bin, the roller screen, the first weighing belt conveyor, the second weighing belt conveyor, the return conveying belt and the vibrating feeder are each provided with a dust suction port; the dust suction port is connected with a bag-type dust collector through a pipeline. 9.The material batching and feeding intelligent equipment according to claim 8, characterized in that: A negative pressure fan is arranged on the pipeline between the bag-type dust collector and the dust suction port. 10.The material batching and feeding intelligent equipment according to claim 1, characterized in that: The two first bins are respectively filled with blocky multi-metal materials and coke; and the two second bins are respectively filled with limestone and copper dross.

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