Ore supply device of autogenous mill

Abstract

The utility model provides an autogenous mill ore supply device, which relates to the technical field of autogenous mill ore supply and comprises a trigger, a mill hopper, a conveying belt, a detection component and a control component, the trigger is used for conveying ore, the mill hopper is used for temporarily storing the ore, a feed port of the mill hopper is arranged below the trigger to receive the ore, the conveying belt is used for conveying the ore to an autogenous mill, and the detection component is used for detecting the ore. The conveying belt is arranged below a discharging port of the mill hopper to receive ore, the detection assembly is used for detecting the ore conveying amount of the trigger and detecting the ore storage amount of the mill hopper, and a controller of the control assembly is in signal connection with a sensor of the detection assembly and is in signal connection with a frequency converter of the trigger and a frequency converter of the conveying belt. By controlling the running speed of the plate machine and monitoring the storage capacity of the mill hopper, the ore cannot enter the conveying belt excessively at a time, so that the conveying belt is prevented from being impacted and crushed, and the conveying belt cannot be damaged and cannot work normally.

Description

Technical Field

[0001] The utility model relates to the technical field of autogenous mill ore supply, in particular to an autogenous mill ore supply device. Background Art

[0002] At present, the market demand for sulfur concentrate with a grade of more than 48% is increasing. To produce high-grade sulfur concentrate with a grade of more than 48%, the original ore needs to be crushed into flat blocks of about 300mm (maximum not more than 800mm) for the next step of grinding, flotation, filtration and other process treatments. The crushed blocks are transferred from the crushing hopper to the plate machine and then transferred to the mill conveyor belt to supply the mill for ore dressing production. However, due to the unstable size of the crushed blocks and the large fluctuation of the material volume, the plate machine will have an unbalanced ore volume during the crushing and transmission process. When the blocks are transferred to the mill conveyor belt, the ore often hits the conveyor belt, causing the conveyor belt to be damaged and unable to work normally. The maintenance intensity is high and the production continuity is poor, which has a great impact on production. Utility Model Content

[0003] In view of the problem in the prior art that ore is prone to impact and damage the conveyor belt, the utility model provides a self-grinding mill ore feeding device, which can control the running speed of the plate machine and monitor the storage capacity of the mill hopper to prevent too much ore from entering the conveyor belt at one time, thereby causing impact and damaging the conveyor belt, causing the conveyor belt to be damaged and unable to work normally.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An autogenous grinding mill ore feeding device, comprising:

[0006] Plate machine, which is used to transport ore;

[0007] A mill hopper, which is used for temporarily storing ore, and a feed port of the mill hopper is arranged below the plate machine to receive the ore;

[0008] A conveyor belt, which is used to convey the ore to the autogenous mill, and the conveyor belt is arranged below the discharge port of the mill hopper to receive the ore;

[0009] A detection component, which is used to detect the ore conveying capacity of the plate machine and the ore storage capacity of the grinding mill hopper;

[0010] A control component, a controller of which is connected to the sensor signal of the detection component, and the controller of the control component is connected to the frequency converter of the plate machine and the frequency converter of the conveyor belt.

[0011] The autogenous grinding mill ore feeding device as described above further comprises a crushing hopper for crushing ore, and the trigger machine is arranged below the discharge port of the crushing hopper to receive the ore.

[0012] In the above-mentioned autogenous grinding mill ore feeding device, further, the detection component includes an electronic belt scale, and the sensor of the electronic belt scale is used to detect the running speed of the trigger machine and the weight of the ore conveyed by the trigger machine.

[0013] In the above-mentioned ore feeding device for the grinding mill, further, the detection component comprises a radar level meter, and the sensor of the radar level meter is used to detect the storage height of the ore in the grinding mill hopper.

[0014] In the above-mentioned autogenous grinding mill ore feeding device, further, the control component is a PLC controller, and the PLC controller is connected to the inverter of the plate machine and the inverter of the conveyor belt by signal.

[0015] In the above-mentioned autogenous grinding mill ore feeding device, further, the PLC controller controls the running speed of the plate machine and the conveyor belt so that the ore feeding capacity of the plate machine ranges from 59 t / h to 61 t / h.

[0016] In the above-mentioned self-grinding mill ore feeding device, further, the PLC controller controls the running speed of the plate machine and the conveyor belt so that the ore storage capacity of the mill hopper ranges from 400mm to 600mm.

[0017] As described above, the autogenous mill ore feeding device, further, the autogenous mill is arranged below the conveyor belt to receive the ore.

[0018] In the autogenous grinding mill ore feeding device as described above, further, the conveyor belt is made of nylon or polyester.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The utility model ensures the stable ore conveying capacity of the plate mill through the electronic belt scale and the radar level meter, and the mill hopper maintains a certain amount of ore storage, so that the falling ore will not directly impact and damage the conveyor belt, and the conveyor belt will not be crushed by excessive material.

[0021] 2. The utility model has a simple structure but strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1This is a schematic diagram of the structure of the ore supply device according to an embodiment of the utility model;

[0024] In the figure: 1. Trigger; 2. Mill hopper; 3. Conveyor belt; 4. Crushing hopper; 5. Autogenous mill; 6. Electronic belt scale; 7. Radar level meter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Example:

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" in the embodiments of the utility model and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, unless otherwise clearly defined and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] The utility model provides a technical solution: a self-grinding mill ore feeding device, which comprises a plate machine 1, a mill hopper 2, a conveyor belt 3, a detection component and a control component, the plate machine 1 is used for conveying ore, the mill hopper 2 is used for temporarily storing ore, a feeding port of the mill hopper 2 is arranged below the plate machine 1 to receive ore, the conveyor belt 3 is used for conveying ore to the self-grinding mill 5, the conveyor belt 3 is arranged below the discharge port of the mill hopper 2 to receive ore, the detection component is used to detect the ore conveying amount of the plate machine 1 and the ore storage amount of the mill hopper 2, the controller of the control component is connected to the sensor signal of the detection component, and the controller of the control component is connected to the inverter signal of the plate machine 1 and the inverter signal of the conveyor belt 3.

[0032] For details, see Figure 1 This ore supply device detects the running speed of the trigger 1 and the weight of the ore on the trigger 1 through the detection component, and detects the temporary ore storage in the mill hopper 2 at the same time, and cooperates with the control component to control the trigger 1 and the conveyor belt 3, so that the ore storage in the mill hopper 2 is maintained within a certain range. When the ore falls on the conveyor belt 3, the conveyor belt 3 will not be directly impacted and damaged by too much ore falling, and the conveyor belt 3 will not be crushed to death by excessive material. In this way, the device can stably supply ore and operate safely. Among them, the detection components include but are not limited to electronic belt scales, speed and weight sensors, radar level meters, infrared sensors, etc.; the control components include but are not limited to PLC controllers, PAC controllers, DCS controllers, etc.

[0033] As an optional implementation, in some embodiments, a crushing hopper 4 for crushing ore is also included, and the plate machine 1 is arranged below the discharge port of the crushing hopper 4 to receive the ore. Among them, the ore transported by the plate machine 1 is crushed by the crushing hopper 4, and the larger ore is crushed into smaller ores. The crushing hopper 4 is used for crushing, which has the advantages of efficient crushing (it can quickly and effectively crush materials of various hardnesses, greatly improving the engineering efficiency. At the same time, the rotation speed of the crushing hopper and the number of blades are adjustable, which can meet the crushing needs of different particle sizes and meet the requirements of different projects), energy saving and environmental protection (the crushing hopper generates less noise and dust during operation, and has less impact on the environment, which meets the environmental protection requirements of modern society. In addition, its efficient working method helps to reduce resource consumption and is in line with the sustainable development concept of energy conservation and emission reduction).

[0034] As an optional implementation, in some embodiments, the detection component includes an electronic belt scale 6, and the sensor of the electronic belt scale 6 is used to detect the running speed of the plate machine 1 and the weight of the ore conveyed by the plate machine 1. Among them, the present ore supply device selects the electronic belt scale 6 as the detection component of the plate machine 1, which has the advantages of high measurement accuracy (it can accurately detect the weight and belt speed of the material conveyed by the belt conveyor, and its measurement accuracy can reach 0.1%, which is more accurate than other weighing equipment. At the same time, it can also calculate the flow rate, cumulative measurement, etc. of the material to ensure accurate measurement and avoid errors), simple operation (only simple settings and calibration are required to start normal use), and easy maintenance (only the sensors and meters of the belt scale need to be cleaned regularly).

[0035] As an optional implementation, in some embodiments, the detection component includes a radar level meter 7, and the sensor of the radar level meter 7 is used to detect the storage height of the ore in the mill hopper 2. Among them, the present ore supply device selects the radar level meter 7 as the detection component of the mill hopper 2, which has the advantages of high measurement accuracy (adopting non-contact measurement, electromagnetic waves can penetrate the vacuum, are not affected by the atmosphere, steam, and volatile mist in the tank, and can achieve accurate level measurement. It is not affected by factors such as material properties, temperature, pressure, gas, etc., and has high measurement accuracy), strong stability (strong anti-interference ability, for interference echoes, such as interference echoes caused by the noise caused by the joint or the inlet and outlet, it has a restrictive function. At the same time, its measurement is not affected by the process and environment, and it can work stably and reliably no matter what kind of harsh on-site working conditions), safety and environmental protection (adopting non-contact measurement, there is no need to directly contact with the measured medium, avoiding possible pollution and leakage problems, and meeting environmental protection requirements. At the same time, the materials used are stable and durable, can be recycled, and are also in line with the concept of energy saving and environmental protection).

[0036] As an optional implementation, in some embodiments, the control component is a PLC controller. Among them, the ore supply device uses a PLC controller as the control component of the plate machine 1 and the conveyor belt 3, which has the advantages of simple programming, high reliability, and strong adaptability.

[0037] In the above embodiment, the PLC controller further controls the running speed of the plate machine 1 and the conveyor belt 3 so that the ore conveying capacity of the plate machine 1 is in the range of 59t / h to 61t / h. After the data of the electronic belt scale 6 is transmitted to the PLC controller, it is analyzed by programming whether it is within the required range, preferably, the range is controlled at 60t / h.

[0038] In the above embodiment, the PLC controller further controls the running speed of the plate machine 1 and the conveyor belt 3 so that the ore storage volume of the mill hopper 2 is within the range of 400 mm to 600 mm. After the data of the radar level meter 7 is transmitted to the PLC controller, it is analyzed by programming whether it is within the required material storage volume range, preferably, the range is controlled within 500 mm.

[0039] As an optional implementation, in some embodiments, the autogenous mill 5 is arranged below the conveyor belt 3 to receive the ore. In this way, it is more conducive for the ore to fall into the autogenous mill 5.

[0040] As an optional implementation, in some embodiments, the material of the conveyor belt 3 is nylon or polyester. The conveyor belt 3 can be made of different materials according to the actual working environment, as long as it meets the working conditions. Nylon conveyor belts have the advantages of thin belt body, high strength, and impact resistance, while polyester conveyor belts have the advantages of impact resistance, high strength, and good flexibility.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable ordinary technicians in the field to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the essence of the content of the utility model should be included in the protection scope of the utility model.

Claims

1. A self-grinding mill ore feeding device, characterized in that: include: Plate machine, which is used to transport ore; A mill hopper, which is used for temporarily storing ore, and a feed port of the mill hopper is arranged below the plate machine to receive the ore; A conveyor belt, which is used to convey the ore to the autogenous mill, and the conveyor belt is arranged below the discharge port of the mill hopper to receive the ore; A detection component, which is used to detect the ore conveying capacity of the plate machine and the ore storage capacity of the grinding mill hopper; A control component, a controller of which is connected to the sensor signal of the detection component, and the controller of the control component is connected to the frequency converter of the plate machine and the frequency converter of the conveyor belt.

2. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: It also includes a crushing hopper for crushing ore, and the trigger machine is arranged below the discharge port of the crushing hopper to receive the ore.

3. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: The detection component comprises an electronic belt scale, and the sensor of the electronic belt scale is used to detect the running speed of the trigger machine and the weight of the ore conveyed by the trigger machine.

4. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: The detection component comprises a radar level meter, and a sensor of the radar level meter is used to detect the storage height of the ore in the mill hopper.

5. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: The control component is a PLC controller.

6. The autogenous grinding mill ore feeding device according to claim 5, characterized in that: The PLC controller controls the running speed of the plate machine and the conveyor belt so that the ore conveying capacity of the plate machine ranges from 59t / h to 61t / h.

7. The autogenous grinding mill ore feeding device according to claim 5, characterized in that: The PLC controller controls the running speed of the plate machine and the conveyor belt so that the ore storage capacity of the mill hopper ranges from 400 mm to 600 mm.

8. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: The autogenous grinding mill is arranged below the conveyor belt to receive the ore.

9. The autogenous grinding mill ore feeding device according to claim 1, characterized in that: The conveyor belt is made of nylon or polyester.

Images