Fine ore bin multi-opening raw ore discharging and vibration stirring uniformizing feeder

Abstract

The utility model discloses a fine ore bin multi-opening raw ore blanking and vibration stirring uniformizing feeder. The fine ore bin multi-opening raw ore blanking and vibration stirring uniformizing feeder comprises a vibration feeding mechanism, a powerful stirrer and an intelligent control system. The feeder realizes uniform raw ore granularity, uniform raw ore useful metal grade and uniform and stable raw ore quantity ton before the fine ore bin is fed to the ball mill through the modes of multi-port feeding, uniform stirring and integrated intelligent control. The problems that raw ore granularity mixing is not uniform, raw ore metal grades are not uniform and feeding of the ball mill is not stable before discharging of the fine ore bin is supplied to the ball mill are solved. The research, development and application of the equipment are beneficial to improving the mine production efficiency, reducing the production cost and improving the product quality, and positive contributions are made to sustainable development of the mining industry.

Description

TECHNICAL FIELD

[0001] The utility model relates to raw ore blanking feeder, concretely relates to a kind of powder ore bunker multi-port raw ore blanking combined vibration stirring uniform material feeder. BACKGROUND

[0002] In the production process of mine, powder ore bunker lower end feeder is as the important equipment of powder ore supply of ball mill, and its blanking uniformity and stability have crucial influence on the running efficiency of subsequent ball mill and product quality. However, in actual production process, due to the raw ore grade difference of underground ore lean ore and rich ore, ore blending uneven in crushing production and long storage time of powder ore bunker, it often leads to uneven mixing of raw ore granularity before powder ore bunker blanking supply ball mill, uneven raw ore metal grade and ball mill feeding instability. These problems not only affect the stability of ore grinding, lead to large fluctuation of ore dressing, but also make useful metal not fully recovered, affect production index and economic benefit. Therefore, developing a kind of feeder device capable of improving the blanking uniformity and stability of powder ore bunker has important significance for improving the production efficiency of mine ore dressing, reducing production cost and improving product quality. SUMMARY

[0003] The utility model aims at solving above-mentioned technical problem, discloses a kind of powder ore bunker multi-port raw ore blanking combined vibration stirring uniform material feeder, and the feeder is realized raw ore granularity uniform, raw ore useful metal grade uniform and raw ore quantity ton uniform stable before powder ore bunker blanking supply ball mill by the mode of multiple blanking, uniform stirring and integrated intelligent control, solves the problem of uneven mixing of raw ore granularity before powder ore bunker blanking supply ball mill, uneven raw ore metal grade and ball mill feeding instability

[0004] The development and application of the device will help to improve the production efficiency of mine, reduce production cost and improve product quality, and make positive contribution to the sustainable development of mining industry.

[0005] The technical solution provided by the utility model for solving technical problems is as follows:

[0006] A kind of powder ore bunker multi-port raw ore blanking combined vibration stirring uniform material feeder, including vibration feeder mechanism, powerful mixer, intelligent control system;

[0007] The vibrating feeder mechanism comprises a powder ore bin bottom discharge port, an electric hydraulic feeder gate, and a feeder vibrator; the discharge port is arranged at the bottom of the powder ore bin, and the discharge port is connected with a strong mixer through a closed discharge chute; an electric hydraulic feeder gate is arranged on the closed discharge chute; and the closed discharge chute is provided with a feeder vibrator; the strong mixer comprises a box body and a stirring mechanism; the strong mixer is arranged at the center of the closed discharge chute; the box body comprises an upper box body, a lower box body, and a discharge hopper; the upper box body is a material stirring area; the upper box body and the lower box body are welded with an inclined plate I; the lower box body and the discharge hopper are welded with an inclined plate II; the lower box body is provided with an electric hydraulic thrust gate II; the outer part of the box body is welded with a box support column; an observation port is arranged on one side of the upper box body; after the material is stirred, the material is transported to a ball mill through a discharge chute at the lower end of the discharge hopper and a belt conveyor; the stirring mechanism comprises a needle roller cycloid reduction motor, a stirring spindle, and a positive taper helical plate stirring blade; the top end of the strong mixer is welded with a stirring drive support frame; the needle roller cycloid reduction motor is arranged at the center of the stirring drive support frame; the shaft of the needle roller cycloid reduction motor is connected with the stirring spindle; the positive taper helical plate stirring blade is arranged on the stirring spindle; the bottom thrust bearing and the stirring spindle lower support frame are arranged at the bottom of the stirring spindle; the stirring spindle lower support frame is connected with the box body in the transverse direction; and the bottom thrust bearing is sealed by a bearing bush seat. The intelligent control system comprises sensors for detecting flow, ore discharge concentration, and raw ore grade; detectors for detecting flow, ore discharge concentration, and raw ore grade; detector signal transmission lines; an intelligent control display screen; and bidirectional signal transmission lines; the sensors for detecting flow, ore discharge concentration, and raw ore grade are arranged on the raw ore discharge pipeline; the sensors for detecting flow, ore discharge concentration, and raw ore grade transmit detection data to the detectors for detecting flow, ore discharge concentration, and raw ore grade for detection and analysis; after the detection and analysis, the data is transmitted to the intelligent control display screen through the detector signal transmission lines; the data is displayed on the intelligent control display screen; the display screen displays the data and compares the data with the preset values; when the displayed values are different from the preset values, the intelligent control system transmits signals to the feeder gate control power supply, circuit breaker, frequency converter, and feeder gate motor through the bidirectional signal transmission lines; the feeder gate motor is started; the opening and closing of the electric hydraulic thrust gate II are adjusted to control the ore feeding amount; at the same time, the bidirectional signal transmission lines also transmit signals to the vibrator power supply, circuit breaker, frequency converter, and feeder vibrator; the feeder vibrator is started; the amplitude is adjusted through the frequency converter; and finally, the displayed values are the same as the preset values.

[0008] The frequency converter is 1HZ-50HZ; the flow and stability of the raw ore discharging process are adjusted and controlled through the frequency converter.

[0009] The discharge hopper 2-5 is provided with a discharge port sealing strip 2-6 at the lower end.

[0010] The advantages of this utility model are: 1. The feeder achieves uniform particle size, uniform useful metal grade, and uniform and stable quantity of raw ore in tons before it is fed to the ball mill from the powder ore bin through multi-port feeding, uniform stirring, and integrated intelligent control; 2. It is applicable to powder ore bins of different sizes and types, and has wide applicability; 3. It can be used in conjunction with other related equipment to form a complete material handling system, and adopts an integrated intelligent control system to realize the automated operation and intelligent management of the equipment; 4. The intelligent control system monitors parameters such as material flow rate, grade, and concentration in real time through sensors, and automatically adjusts the working status of the electric gate and vibrator according to these parameters to realize the automated operation and intelligent management of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a view of the present invention from direction A;

[0013] Figure 3 This is a CC view of the present invention;

[0014] Figure 4 This is a DD view of the present invention;

[0015] Figure 5 This is the circuit schematic diagram of the intelligent control system of this utility model;

[0016] 1-1. Fine ore bin; 1-2. Bottom of the ore bin; 1-3. Concrete support column at the bottom of the fine ore bin; 1-4. Concrete structural beam at the bottom of the fine ore bin; 1-5. Feed port at the bottom of the fine ore bin; 1-6. Enclosed feed chute; 1-7. Electro-hydraulic feed gate; 1-8. Feed vibrator; 1-9 is the raw ore flow direction indicator.

[0017] 2-1. Upper part of the box body; 2-2. Inclined plate one; 2-3. Lower part of the box body; 2-4. Inclined plate two; 2-5. Bottom discharge port; 2-6. Discharge port sealing strip; 2-7. Box support column; 2-8. Observation port; 2-9. Belt conveyor; 2-10. Electric hydraulic feed gate two;

[0018] 3-1. Cycloidal needle roller motor; 3-2. Bolts connecting the motor and the support frame; 3-3. Upper part of the mixing shaft; 3-4. Upper support frame of the mixing shaft; 3-5. Lower part of the mixing shaft; 3-6. Positive conical spiral plate mixing blades; 3-7. Lower support frame of the mixing shaft; 3-8. Bottom thrust bearing; 3-9. Bottom thrust bearing seat; 3-10. Top bearing of the cycloidal needle roller motor; 3-11. Flange; 3-12. Bolts; 3-13. Spiral blade bracket;

[0019] 4-1 Ball mill; 4-2 Ball mill discharge chute; 4-3 Raw ore discharge pipeline; 4-4 Sensors for detecting flow rate, discharge concentration, and raw ore grade; 4-5 Detector for detecting flow rate, discharge concentration, and raw ore grade; 4-6 Detector transmission signal line; 4-7 Intelligent control display screen; 4-8 Bidirectional transmission signal line; 5-1 Feed gate control power supply; 5-2 Circuit breaker one; 5-3 Frequency converter one; 5-4 Feed gate motor; 6-1 Feed vibrator power supply; 6-2 Circuit breaker two; 6-3 Frequency converter two; 7-1 Feed water pipe solenoid valve; 7-2 Feed water pipe. Detailed Implementation

[0020] Analysis: Problems and causes existing in the current process of feeding fine ore into the silo, and determination of improvement goals and directions. In actual production, there are a series of problems in the raw ore processing stage before the ball mill is supplied with fine ore. These problems mainly stem from factors such as the quality differences of underground ore, uneven ore blending during crushing, and excessively long storage time in the fine ore silo.

[0021] Firstly, due to the significant difference in grade between lean and rich ores in the underground mine, the raw ore entering the fines bin exhibits a marked inhomogeneity in the grade of useful metals. This inhomogeneity is further amplified when the material is not fully mixed, resulting in large fluctuations in the grade of the raw ore supplied to the ball mill, thus affecting the mineral processing efficiency.

[0022] Secondly, uneven ore blending is also a significant issue in crushing production. Improper mixing ratios of ores of different qualities and particle sizes during the crushing process can lead to uneven particle size distribution in the material entering the powder bin. This unevenness not only affects the grinding efficiency but may also negatively impact the operational stability of the ball mill.

[0023] In addition, the long storage time of fine ore in silos is also a factor that cannot be ignored. Materials stored for extended periods are affected by gravity and...

[0024] The interaction between materials can easily form a hollow cone shape, causing coarse particles at the edges to slide off first during feeding, resulting in particle size gradation. This leads to fluctuations in the particle size and grade of the raw ore at the feed inlet. This directly affects the grinding fineness of the ball mill and the unevenness of the raw ore grade, thus impacting the beneficiation effect and product quality.

[0025] To address the aforementioned issues, our technical team conducted in-depth research and analysis, identifying improvement goals and directions: to develop equipment capable of improving the uniformity of raw ore particle size, metal grade, and the stability of the quantity supplied to the ball mill from the powder ore bin. This equipment will solve the problems existing in the current powder ore bin feeding process, improve grinding stability and beneficiation efficiency, while simultaneously reducing production costs and increasing economic benefits.

[0026] To address this, we developed a multi-port raw ore feeder with combined vibration and mixing for powdered ore. This equipment achieves uniform mixing and stable supply of materials during the feeding process through multi-port feeding, vibration mixing, and precise control. The multi-port feeding structure improves feeding speed and uniformity, while vibration and mixing technologies enhance material stability and mixing uniformity. The integrated intelligent control system ensures a stable and consistent supply of material to the ball mill, meeting production requirements.

[0027] Furthermore, this equipment boasts wide applicability and high customizability. It is suitable for fines silos of varying sizes and types and can be used in conjunction with other related equipment to form a complete raw ore supply and processing system. Additionally, we can customize designs according to the specific needs of our clients to meet their unique requirements.

[0028] A multi-port raw ore feeder with combined vibration mixing and homogenization includes a vibration feeding mechanism, a high-power mixer, and an intelligent control system;

[0029] The vibrating feeding mechanism includes a bottom discharge port 1-5 of the powder ore bin, an electro-hydraulic feeding gate 1-7, and a feeding vibrator 1-8. The bottom discharge port 1-5 of the powder ore bin is connected to a high-power mixer through a closed feeding chute 1-6. The electro-hydraulic feeding gate 1-7 is installed on the closed feeding chute 1-6. The electro-hydraulic feeding gate 1-7 can be manually opened and adjusted to the feeding state. The feeding vibrator 1-8 is installed on the closed feeding chute 1-6. The amplitude of the feeding vibrator 1-8 is controlled by a frequency converter between 1HZ and 50HZ, thereby controlling the flow rate and stability of the raw ore feeding process and preventing material blockage and accumulation.

[0030] The high-powered mixer includes a housing and a mixing mechanism. The mixer is installed at the center of a closed discharge chute 1-6. The housing consists of an upper housing body 2-1, a lower housing body 2-3, and a discharge hopper. The upper housing body 2-1 is the material mixing zone. The upper housing body 2-1 and the lower housing body 2-3 are welded together by a inclined plate, and the lower housing body 2-3 and the discharge hopper are welded together by an inclined plate. An electric hydraulic thrust gate 2-10 is installed on the lower housing body 2-3. Housing support columns 2-7 are welded to the outside of the housing body. An observation port 2-8 is provided on one side of the upper housing body. After mixing, the material enters the belt conveyor 2-9 through the discharge chute at the lower end of the discharge hopper and is transported to the ball mill. The mixing mechanism includes a needle roller cycloidal reducer motor 3-1, a mixing main shaft, and positive conical spiral plate mixing blades 3-6. The high-powered mixer has a welding drive support frame 3-4 at the top. A cycloidal needle roller motor 3-1 is installed at the center of the drive frame. The cycloidal needle roller motor 3-1 is connected to the drive support frame 3-4 with bolts 3-2. The shaft of the cycloidal needle roller motor is connected to the main mixing shaft. A flange 3-11 is welded to the upper shaft 3-3 and the lower shaft 3-5 of the main mixing shaft. The flange is connected with bolts 3-12. A conical spiral plate mixing blade 3-6 is installed on the main mixing shaft. The conical spiral plate mixing blade is connected and fixed to the main mixing shaft with a spiral blade bracket 3-13. A bottom thrust bearing 3-8 and a lower support frame 3-7 are installed at the bottom of the main mixing shaft. The lower support frame 3-7 is horizontally connected to the housing. The bottom thrust bearing is sealed by a bearing seat 3-9.

[0031] The intelligent control system includes sensors 4-4 for detecting flow rate, discharge concentration, and raw ore grade; detectors 4-5 for detecting flow rate, discharge concentration, and raw ore grade; a transmission signal line 4-6 for the detector; an intelligent control display screen 4-7; and a bidirectional transmission signal line 4-8. Sensors 4-4 are installed on the raw ore discharge pipeline and transmit the detected data to the detectors 4-5. After detection and analysis, the data is transmitted to the intelligent control display screen 4-7 via the detector transmission signal line 4-6. The data is then displayed on the intelligent control display screen. The system automatically compares the displayed value with the pre-set values. If the displayed value differs from the set value, the intelligent control system transmits signals via bidirectional transmission signal line 4-8 to the feed gate control power supply 5-1, circuit breaker 5-2, frequency converter 5-3, and feed gate motor 5-4. The feed gate motor 5-4 starts, adjusting the opening and closing of the electro-hydraulic thrust gate 2-10 to control the feed rate. Simultaneously, bidirectional transmission signal line 4-8 also transmits signals to the feed vibrator power supply 6-1, circuit breaker 6-2, frequency converter 6-3, and feed vibrator 1-8. The feed vibrator 1-8 starts, and the amplitude is adjusted via frequency converter 6-3, ultimately ensuring that the displayed value matches the set value.

[0032] The intelligent control system monitors parameters such as material flow rate, grade, and concentration in real time through sensors, and automatically adjusts the working status of the electro-hydraulic thrust gate 2-10 and the feed vibrator 1-8 based on these parameters, thereby realizing automated operation and intelligent management of the equipment.

[0033] Start-up and shutdown sequence: Start-up → Intelligent control system → Belt → Electric hydraulic thrust gate 2-10 → High-power mixer → Electric hydraulic feed gate 1-7 and feed vibrator 1-8. Shutdown sequence is the reverse.

[0034] Material is simultaneously fed from all four discharge ports of the powder ore bin. Utilizing the length of the lower plate of the discharge chute, the material first falls into the center of the top spiral plate agitator blades during the discharge process. The top spiral plate agitator blades have the shortest top spiral and the longest bottom spiral. After being agitated layer by layer by the downward spiraling blades, the material falls into the discharge funnel, completing a powerful and uniform mixing process. After the mixed material enters the chute at the bottom of the funnel, the amount of material supplied to the ball mill is controlled by an electric hydraulic thrust gate 2-10. To prevent material spillage and dust during the discharge process, rubber baffles are installed at the edges of the discharge ports. The material is transported to the ball mill via a conveyor belt. By implementing the above technology, the uniformity and stability of the material during the discharge process can be increased through vibration and agitation.

Claims

1. A multi-port raw ore feeder with combined vibration mixing and homogenization, characterized in that: Includes a vibratory feeder, a high-power mixer, and an intelligent control system; The vibrating feeding mechanism includes a bottom discharge port (1-5) of the powder ore bin, an electric hydraulic feeding gate (1-7), and a feeding vibrator (1-8). The bottom discharge port (1-5) of the powder ore bin is connected to a high-power mixer through a closed discharge chute (1-6). The electric hydraulic feeding gate (1-7) is installed on the closed discharge chute (1-6), and the feeding vibrator (1-8) is installed on the closed discharge chute (1-6). The high-power mixer includes a housing and a mixing mechanism. The high-power mixer is installed at the center of the closed discharge chute (1-6). The housing consists of an upper part (2-1), a lower part (2-3), and a hopper. The upper part (2-1) of the housing is the material mixing zone. The upper part (2-1) and the lower part (2-3) of the housing are welded together with a first inclined plate, and the lower part (2-3) and the hopper are welded together with a second inclined plate (2-4). An electric hydraulic thrust gate (2-10) is installed on the lower part (2-3) of the main body of the box. A box support column (2-7) is welded to the outside of the main body of the box. An observation port (2-8) is left on one side of the upper part of the main body of the box. After the material is stirred, it enters the belt conveyor (2-9) through the hopper and is transported to the ball mill. The stirring mechanism includes a cycloidal needle roller motor (3-1), a stirring main shaft, and a positive conical spiral plate stirring blade (3-6). A stirring drive support frame (3-4) is welded to the top of the high-power mixer. A cycloidal needle roller motor (3-1) is installed at the center of the stirring drive support. The shaft of the cycloidal needle roller motor is connected to the stirring main shaft. A positive conical spiral plate stirring blade (3-6) is installed on the stirring main shaft. A bottom thrust bearing (3-8) and a lower support frame (3-7) of the stirring main shaft are installed at the bottom of the stirring main shaft. The lower support frame (3-7) of the stirring main shaft is horizontally connected to the box. The intelligent control system includes sensors (4-4) for detecting flow rate, discharge concentration, and raw ore grade; a detector (4-5) for detecting flow rate, discharge concentration, and raw ore grade; a detector transmission signal line (4-6); an intelligent control display screen (4-7); and a bidirectional transmission signal line (4-8). The sensor (4-4) is installed on the raw ore discharge pipeline. It transmits the detected data to the detector (4-5) for analysis, and then transmits the data through the detector transmission signal line (4-6) to the intelligent control display screen (4-7) for display. The system is then configured to work in conjunction with pre-set parameters on the intelligent control display screen. The system performs self-detection and comparison. When the value displayed on the screen differs from the set value, the intelligent control system transmits signals through the bidirectional transmission signal line (4-8) to the feed gate control power supply (5-1), circuit breaker one (5-2), frequency converter one (5-3), and feed gate motor (5-4). The feed gate motor (5-4) starts and adjusts the opening and closing of the electro-hydraulic thrust gate two (2-10) to control the feed rate. At the same time, the bidirectional transmission signal line (4-8) also transmits signals to the feed vibrator power supply (6-1), circuit breaker two (6-2), frequency converter two (6-3), and feed vibrator (1-8). The feed vibrator (1-8) starts and adjusts the amplitude through frequency converter two (6-3) until the value displayed on the screen is the same as the set value.

2. The multi-port raw ore feeding and vibrating mixing feeder for powdered ore bins according to claim 1, characterized in that... The frequency converter is 1Hz-50Hz and is used for adjustment.

3. The multi-port raw ore feeding and vibrating mixing feeder for powdered ore bins according to claim 1, characterized in that... The lower end of the hopper is equipped with a discharge port sealing strip (2-6).

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