A multi-stage ore dressing device and ore dressing method for fine screening of titanium-zirconium placer

Abstract

This invention relates to the field of mineral processing equipment technology, specifically a multi-stage mineral processing equipment and method for fine screening of titanium-zirconium sand ore. The equipment includes a frame, a support, and a mounting plate, as well as a motor, a rotating rod, a screening assembly, a shaking assembly, and an impact assembly. The motor is mounted on the mounting plate, and the rotating rod is also mounted on the mounting plate and connected to the output end of the motor. The screening assembly and the shaking assembly are both mounted on the rotating rod and connected to each other. The impact assembly is mounted on the shaking assembly. When the shaking assembly is powered on, it drives the screening assembly to reciprocate along the axis of the rotating rod and drives the shaking assembly to rotate. This invention, through the use of the shaking and impact assemblies, ensures the normal reciprocating movement of the screen buckets even after blockage, while simultaneously intermittently impacting the screen buckets. The impact speed is proportional to the moving speed of the screen buckets, improving the cleaning speed of the screen buckets while ensuring the working efficiency of the mineral processing equipment.

Description

Technical Field

[0001] This invention relates to the field of mineral processing equipment technology, specifically to a multi-stage mineral processing equipment and method for fine screening of titanium-zirconium sand ore. Background Technology

[0002] Titanium-zirconium placer deposits are minerals containing titanium and zirconium, mainly formed in coastal placer deposits, alluvial placer deposits, and diluvial placer deposits. They require mining machinery and equipment for extraction and beneficiation. The beneficiation process for titanium-zirconium placer deposits typically includes crushing and screening, gravity separation, magnetic separation, and electrostatic separation. Among these, crushing and screening is a crucial early stage in the entire beneficiation process. It is necessary to crush the large pieces of ore extracted to achieve the appropriate particle size. During the process of washing and separating the mud from the surface of the ore, screening is used to distinguish the ore of different particle size ranges, so as to facilitate subsequent gravity separation, magnetic separation, and electrostatic separation processes.

[0003] Traditional screening methods typically involve placing crushed ore on a screen and using the vibration of the screen to retain ore particles larger than the screen mesh size above the screen, while ore particles smaller than the screen mesh size pass through and are removed. However, traditional screens are usually set up independently. In order to screen out ores of various particle sizes, the ore particles that have been screened need to be screened again using a screen with a smaller mesh size after each screening. This results in the entire mineral processing process being too time-consuming and seriously affecting the working efficiency of the mineral processing equipment. To address the aforementioned issues, existing technologies offer relatively good solutions. These solutions utilize mainstream energy-efficient mining machinery to perform multi-stage water washing and screening of mined titanium-zirconium ore. For example, a multi-stage water screening machine (publication number CN211303400U) includes a screen cylinder, an integrated feed and discharge pipe, and n≥2 layers of screening devices with screen apertures arranged sequentially from largest to smallest. Through these multi-layered screening devices, multiple particle sizes can be produced during the screening process. Simultaneously, the screening operation is carried out in water, effectively improving screening efficiency and thus ensuring the working efficiency of the mineral processing equipment. However, the following drawbacks still exist: because the surface of the ore particles after crushing is irregularly shaped, ore particles with a mesh size similar to the screen opening are easily blocked inside the screen opening during the vibration of the screen cylinder. As the screening equipment continues to work, the number of ore particles blocked inside the screen opening will gradually increase, causing small ore particles to be unable to pass through the screen opening smoothly during the screening process, thus affecting the normal operation of the entire mineral processing equipment. Although the normal use of the screening equipment can be ensured by replacing the screen cylinder, since a large number of screen cylinders are used in multi-stage fine screening, the process of replacing the screen cylinders requires a long downtime, which also affects the working efficiency of the mineral processing equipment.

[0004] Therefore, in order to solve the above problems, a multi-stage mineral processing equipment and method for fine screening of titanium zirconium sand is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-stage mineral processing equipment and method for fine screening of titanium-zirconium sand ore, solving the problem of long downtime required to replace the screen cylinder to ensure normal water washing and screening effects, which affects the working efficiency of the mineral processing equipment. Through the design of screening components, shaking components, and impact components, the screening components can restrict the impact components during normal screening operations, preventing collisions between the impact components and the screen buckets and thus avoiding accelerated ore particle blockage. When screen bucket blockage affects the water washing and screening effect, the screen buckets are flipped and inverted. After inversion, on the one hand, the shaking components drive the screen buckets to reciprocate horizontally, accelerating the discharge of ore particles retained in each screen bucket; on the other hand, the impact components drive the screen buckets to intermittently impact them during reciprocating movement, causing the ore particles blocked in the screen buckets to fall off naturally under the vibration generated by the impact components. This effectively shortens downtime for maintenance and ensures the working efficiency of the mineral processing equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-stage mineral processing device for fine screening of titanium-zirconium sand ore includes a frame, a support, and a mounting plate. The support and mounting plate are symmetrically arranged on the frame. Two mounting plates are provided. The device also includes a motor, a rotating rod, a screening component, a shaking component, and an impact component. The motor is mounted on the mounting plate. The rotating rod is mounted on the mounting plate and connected to the output end of the motor. The screening component and the shaking component are both mounted on the rotating rod and connected to each other. The impact component is mounted on the shaking component. When the shaking component is energized, it drives the screening component to reciprocate along the axis of the rotating rod and drives the shaking component to rotate. When the screening component is clogged, the motor is energized and drives the rotating rod to rotate. When the rotating rod rotates, it drives the screening component and the shaking component to rotate synchronously around the axis of the rotating rod (to ensure the stability of the screening component after rotation, a worm gear and worm can be used in conjunction with the motor, utilizing the self-locking function of the worm gear and worm to limit the rotation of the rotating rod, thereby ensuring the stability of the screening component after rotation). When the shaking component rotates, it drives the impact component away from the rotating rod and gradually closer to the screening component.

[0008] Preferably, the screening assembly includes a screen bucket, a fixing rod, a sleeve, a spring, and a guide plate. Multiple screen buckets are arranged vertically, with their sizes increasing from top to bottom. For each screen bucket, a receiving box of corresponding height can be installed on one side of the entire equipment to collect the ore particles remaining in each screen bucket when the screen bucket is flipped. Adjacent screen buckets are connected by a fixing rod. The sleeve passes through the middle screen bucket, and the rotating rod is movably inserted inside the sleeve and keyed to the sleeve. The spring is located between the mounting plate and the screen bucket and is sleeved with the sleeve. The guide plate is located at the bottom of the screen bucket, with the opening of the screen bucket inclined upwards and the opening of the guide plate inclined downwards. A guide wheel is located at the bottom of the lowest screen bucket, and when the screen bucket is not flipped, the guide wheel rolls on the support.

[0009] It is known that most screens used for screening mined ore particles are horizontally positioned. During the screening process, ore particles larger than the screen mesh size remain on the screen, while those smaller fall off. Considering the need for multi-stage screening, and the fact that the fallen ore particles are concentrated in one area, affecting the screening efficiency of the next stage, this solution is adopted. By tilting the screen opening upwards, the diffusion speed of ore particles in the screen can be accelerated as the screen moves back and forth along the axis of the rotating rod, thereby increasing the screening speed. Furthermore, ore particles falling from the previous stage screen can be dispersed in a stepped manner in the next stage screen under the action of the corresponding guide plates, and the diffusion action is repeated with the reciprocating movement of the screen, thus accelerating the overall screening speed and improving the working efficiency of the mineral processing equipment.

[0010] Preferably, the shaking assembly includes a fixed plate, a second motor, a cam, an I-beam wheel, a drive rod, a collar, and a guide rod. The fixed plate is disposed at the end of the rotating rod. The second motor is a dual-shaft motor and is disposed on the fixed plate. The cam is disposed at one end of the second motor. The I-beam wheel is disposed on the screen bucket in the middle position through a wheel frame and contacts the side wall of the cam. The drive rod passes through the drive shaft of the second motor and is keyed to the drive shaft of the second motor. A guide groove is provided on the mounting plate. The collar and the impact assembly are respectively disposed at both ends of the drive rod. One end of the guide rod is connected to the collar, and the other end is disposed inside the guide groove.

[0011] It is known that the most common way to achieve screen bucket shaking to ensure normal screening function is to directly use a vibrating screen. Considering that titanium zirconium sand deposits are mostly produced in coastal beaches and alluvial layers, the mined ore usually contains moist mud. Since the moist mud can easily clog the screen bucket during operation, the screening function of the screen bucket is limited. The most direct cleaning method is to wash it with water. However, it is strictly forbidden to wash the vibrating screen with water when it is powered on to avoid safety accidents. However, the vibrating screen cannot vibrate when the power is off, and washing it with water alone will limit the cleaning efficiency. Therefore, this solution is adopted. By using a second motor, a cam, and an I-beam wheel, the cam intermittently compresses the I-beam wheel during the operation of the second motor, causing the screen bucket to move along the axis of the rotating rod. Simultaneously, a spring enables the screen bucket to reciprocate during the operation of the second motor. When the cam surface is furthest from the axis and in contact with the I-beam wheel, the compressed spring is at its maximum compression state, achieving a lateral impact effect on the screen bucket. This improves the water washing and screening effect, effectively clearing the mud clogged in the uppermost screen bucket during the water rinsing process. This increases the working efficiency of the mineral processing equipment while ensuring the washing effect. Furthermore, a waterproof motor can be used for the second motor, effectively reducing safety hazards.

[0012] Preferably, the impact assembly includes an extension rod, a guide plate, a disc, a sleeve rod, a connecting rod, a hammer head, an arc-shaped guide plate, a connecting block, and an L-shaped telescopic rod. The extension rod is coaxially mounted on the I-beam wheel. The guide plate is mounted on the extension rod. The disc is slidably mounted on the extension rod and keyed to the extension rod and the guide plate. The sleeve rod is mounted on the surface of the disc. The connecting rod passes through the sleeve rod. One end of the connecting rod is slidably connected to the guide plate, and the other end is connected to the hammer head. A groove is formed on one side of the disc. The arc-shaped guide plate is movably engaged at the opening of the groove. The connecting block is rotatably mounted on the end of the drive rod. The two ends of the L-shaped telescopic rod are respectively connected to the arc-shaped guide plate and the connecting block.

[0013] It is known that a significant amount of ore particles remain inside the screen bucket during its rotation. Because the screen bucket's interior is uneven, some ore adheres to its inner wall during rotation. Therefore, the screen bucket needs to continue moving under the influence of the shaking mechanism. However, continuous movement cannot remove the ore particles clogging the screen bucket. The simplest way to remove these particles after rotation is to install a vibrating motor on its surface. However, vibration before the screen bucket reaches a vertical position exacerbates the clogging. While the vibration motor's activation time can be controlled by a controller, the high salt and moisture content in titanium-zirconium sand deposits from coastal sand deposits can corrode the controller due to salt spray, affecting the equipment's normal operation. (Alternatively, the hammerhead could be separated, but this requires an independent power source. To achieve automatic operation of this power source when the screen bucket is rotated to an inverted state, a controller is still needed, which would also be affected by salt spray.) Therefore, this solution is adopted. With the connecting rod and hammer head set up, the hammer head does not contact the screen bucket during screening, thus avoiding accelerated ore particle blockage. When cleaning the screen bucket, the hammer head is driven by the continuous operation of motor two to intermittently strike the side wall of the corresponding screen bucket, thereby shaking out the ore particles blocked inside the screen bucket. This ensures the cleaning effect while reducing the negative impact of mechanical stress and eliminating the need for long-term downtime. Motor one and motor two can be dustproof and waterproof motors to avoid interference from salt spray, thereby ensuring the working efficiency of the mineral processing equipment.

[0014] Preferably, the connecting rod includes a first segment and a second segment, the first segment and the second segment are hinged and both are provided through the sleeve rod, the guide plate has a guide opening, the end of the first segment has a bayonet, the bayonet is provided with a limit rod inside, the limit rod is provided through the guide opening, the hammer head is provided at the free end of the second segment, and the second segment is a rubber rod.

[0015] It is known that the most direct way to improve screening efficiency is to install a vibrating motor on the side wall of the screen bucket or increase the reciprocating speed of the screen bucket. Considering that the vibrating motor will cause the screen bucket to vibrate vertically during actual operation, thus aggravating the clogging of the screen bucket by ore particles; and increasing the reciprocating speed of the screen bucket requires increasing the output power of the motor driving the screen bucket, thus increasing the energy consumption of the equipment, this solution is adopted. Through the hinged design of sections one and two, when the hammer head follows the I-beam wheel and impacts the corresponding screen plate, the hinge allows the hammer head and section two to fold around the hinge point of sections one and two, preventing the screen bucket from affecting the normal rotation of the I-beam wheel. After the hammer head is misaligned with the corresponding screen bucket, the centrifugal force generated by the rotation of the I-beam wheel can restore sections one and two to a coaxial state, thus ensuring that the hammer head will effectively impact the corresponding screen plate in the next operation. During normal screening operation, the hinge point of sections one and two is contained within the sleeve rod. Internally, the rotational speed of the I-beam wheel changes due to the change in contact position between the cam and the I-beam wheel during rotation. Therefore, during the "acceleration" or "deceleration" of the I-beam wheel, section one will bend under the inertia of the hammer. As the "acceleration" and "deceleration" of the I-beam wheel continue, section one and the hammer will swing continuously, which will aggravate the shaking of the entire device. This improves the screening effect without increasing the output power of motor two, which not only avoids the ore particles from clogging the screen bucket, but also achieves a certain degree of energy saving.

[0016] Preferably, the distance between the guide groove and the rotating rod is set in a progressive manner, and the distance between the guide rod and the rotating rod is the largest when the guide wheel contacts the bracket.

[0017] By adopting the above scheme, when the screen bucket is performing normal screening work (i.e., the I-beam wheel rotates under the action of the cam), the distance between the guide rod and the rotating rod is at its maximum. At this time, as the I-beam wheel rotates, the hammer cannot contact the screen bucket, that is, it will not hit the screen bucket. Under the premise of ensuring the normal screening function of the screen bucket, vibration can be avoided from causing the ore to block inside the corresponding screen plate.

[0018] Preferably, the guide port includes a horizontal section and an inclined section that are smoothly connected, and the limiting rod is located at the connection between the horizontal section and the inclined section when the sieve bucket is flipped to the vertical state.

[0019] By adopting the above scheme, when the screen bucket continues to rotate along the axis of the rotating rod from the vertical position, the limiting rod can move from the connection between the horizontal section and the inclined section to the inclined section, so that the hammer head can reduce the shortest distance between itself and the middle screen bucket as it rotates with the I-beam wheel. Furthermore, the hinge point between section one and section two can be moved out from inside the sleeve rod. As the I-beam wheel continues to rotate, the two hammer heads can intermittently strike the screen bucket in the middle position. Since the screen bucket is in an inclined position at this time and maintains a fixed angle under the action of motor one, the impact will cause some of the ore blocked in the screen bucket to fall off under the action of vibration, thereby simplifying the cleaning process of the screen bucket and ensuring the working efficiency of the mineral processing equipment.

[0020] A mineral processing method based on any of the above-described multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore includes the following steps:

[0021] S1. Pour the ore to be screened into the top sieve hopper;

[0022] S2. Start motor two. Motor two drives the cam to rotate. When the cam rotates, it squeezes the I-beam wheel and drives the three screen buckets to move back and forth along the axis of the rotating rod to perform screening operations under the action of two springs.

[0023] S3. When it is necessary to remove the ore remaining in the three screen hoppers or to clean the ore particles blocking the screen hoppers, start motor one. Under the action of the rotating rod and the sleeve, motor one drives the three screen hoppers to flip to an inverted state, pouring out the remaining ore particles. During the flipping, the guide rod, under the action of the guide groove, makes the hammer head close to the screen hopper in the middle position. When the I-beam wheel rotates under the action of the cam, it drives the hammer head to rotate continuously, realizing intermittent impact on the screen hopper in the middle position, thereby discharging the ore particles blocking the screen hopper.

[0024] S4. Restart motor one. Motor one will drive the three screen buckets to reset under the action of the rotating rod and the sleeve.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. Through the configuration of motor one, screening component, shaking component, and impact component, the shaking component drives the screening component to move horizontally during ore particle screening. Simultaneously, with the addition of springs, the screening component reciprocates horizontally, thus enabling ore particle screening. When prolonged screening causes ore particles to clog the screening component, affecting its normal washing and screening effect, motor one drives the screening component to flip to an inverted state. During this flipping process, the shaking component adjusts the position of the impact component, ensuring that the impact component contacts the screening component precisely when the screening component is flipped to a vertical position. The transition from vertical to inverted position increases the stroke of the impact component, strengthening its impact on the screening component and causing the clogged ore particles to automatically dislodge, ensuring the subsequent washing and screening effect. This reduces downtime and maintains the working efficiency of the mineral processing equipment.

[0027] 2. By using guide rods and guide grooves, the position of the impact component can be adjusted during screening operations, allowing the hammers in the impact component to separate from the screening component. This prevents the vibration generated by the impact component hitting the screen bucket during screening operations from exacerbating the blockage of ore particles in the screen bucket. During the process of cleaning the ore particles blocked in the screen bucket, the impact component can be driven by motor two. The impact speed of the impact component on the screen bucket is proportional to the reciprocating speed of the screen bucket in the horizontal direction. That is, when the screen plate is severely blocked, the impact speed of the hammers on the screen bucket and the reciprocating speed of the screen bucket in the horizontal direction can be accelerated simultaneously, thereby speeding up the cleaning speed of the ore particles blocked in the screen bucket, effectively shortening downtime, and ensuring the working efficiency of the mineral processing equipment.

[0028] 3. Through the set screening components, using its multiple different screen buckets and the guide plates set at the bottom of each screen bucket, multi-stage screening of ore particles can be achieved. Even with the screen buckets and guide plates facing different directions, the upward setting of the screen bucket openings allows the ore particles in each screen bucket to be evenly dispersed. At the same time, under the action of the guide plates at the bottom of each screen bucket, the ore particles screened off from the previous stage can be evenly distributed in the next stage screen bucket, so that each guide plate and the corresponding screen bucket form a "V" shaped angle, thereby avoiding the accumulation of ore particles in each stage screen bucket. This ensures the working efficiency of the mineral processing equipment while maintaining screening efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0031] Figure 3 For the present invention Figure 1 Enlarged view of part A in the middle section;

[0032] Figure 4 For the present invention Figure 1 Side view;

[0033] Figure 5 For the present invention Figure 4 Schematic diagram of the connection structure between the mounting plate, the shaking component, and the impact component;

[0034] Figure 6 This is a partial cross-sectional view of the connection structure between the second motor and the impact assembly of the present invention;

[0035] Figure 7 This is a diagram showing the state of the sieve bucket when it reaches its limit position according to the present invention;

[0036] Figure 8 This is a diagram showing the state of the sieve bucket of the present invention when it is flipped to a vertical position.

[0037] In the diagram: 1. Frame; 2. Bracket; 3. Mounting plate; 31. Guide groove; 4. Motor 1; 5. Rotating rod; 6. Screening assembly; 61. Screen bucket; 611. Guide wheel; 62. Fixed rod; 63. Sleeve; 64. Spring; 65. Guide plate; 7. Shaking assembly; 71. Fixed plate; 72. Motor 2; 73. Cam; 74. I-beam wheel; 75. Drive rod; 76. Collar; 77. Guide rod; 8. Impact assembly; 81. Extension rod; 82. Guide plate; 821. Guide port; 8211. Horizontal section; 8212. Inclined section; 83. Disc; 831. Groove; 84. Sleeve rod; 85. Connecting rod; 851. Section 1; 8511. Bayonet; 8512. Limiting rod; 852. Section 2; 86. Hammer; 87. Arc-shaped guide plate; 88. Connecting block; 89. L-shaped telescopic rod. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 8 This invention provides a multi-stage mineral processing equipment and method for fine screening of titanium-zirconium sand ore, the technical solution of which is as follows:

[0040] For details, please refer to Figure 1A multi-stage mineral processing device for fine screening of titanium-zirconium sand ore includes a frame 1, a support 2, and a mounting plate 3. The support 2 and mounting plate 3 are symmetrically arranged on the frame 1. There are two mounting plates 3. The device also includes a motor 4, a rotating rod 5, a screening component 6, a shaking component 7, and an impact component 8. The motor 4 is mounted on the mounting plate 3. The rotating rod 5 is mounted on the mounting plate 3 and connected to the output end of the motor 4. The screening component 6 and the shaking component 7 are both mounted on the rotating rod 5 and connected to each other. The impact component 8 is mounted on the shaking component 7. When the shaking component 7 is powered on, it drives the screening component 6 to move back and forth along the axis of the rotating rod 5 and drives the shaking component 7 to rotate. When the screening component 6 is blocked, the motor 4 is powered on and drives the rotating rod 5 to rotate. When the rotating rod 5 rotates, it drives the screening component 6 and the shaking component 7 to rotate synchronously around the axis of the rotating rod 5. When the shaking component 7 rotates, it drives the impact component 88 away from the rotating rod 5 and gradually closer to the screening component 6.

[0041] As one embodiment of the present invention, refer to Figure 1 and Figure 2 The screening component 6 includes a screen bucket 61, a fixing rod 62, a sleeve 63, a spring 64, and a guide plate 65. Multiple screen buckets 61 are arranged vertically, with their dimensions increasing from top to bottom. Adjacent screen buckets 61 are connected by the fixing rod 62. The sleeve 63 passes through the middle screen bucket 61. A rotating rod 5 is movably inserted inside the sleeve 63 and keyed to it. The spring 64 is positioned between the mounting plate 3 and the screen bucket 61 and is sleeved on the sleeve 63. The two ends of the spring 64 are connected to the corresponding mounting plates 3. The screen bucket 61 is in contact with but not fixedly connected. There are two springs 64, which are symmetrically arranged at both ends of the sleeve 63. The guide plate 65 is set at the bottom of the screen bucket 61. The opening of the screen bucket 61 is inclined upward, and the opening of the guide plate 65 is inclined downward. The bottom of the lowest screen bucket 61 is provided with a guide wheel 611. When the screen bucket 61 is not flipped, the guide wheel 611 is rolled on the bracket 2. The guide wheel 611 can provide rolling support for the screen bucket 61, thereby ensuring the stability of the screen bucket 61.

[0042] Under the above settings, when the screen buckets 61 reciprocate rapidly along the axis of the rotating rod 5, the ore in the uppermost screen bucket 61 will undergo the first screening and fall into the middle screen bucket 61. The ore in the middle screen bucket 61 will undergo the second screening and fall into the lowermost screen bucket 61. The ore in the lowermost screen bucket 61 will undergo the third screening and fall (a receiving box can be placed on the frame 1 to receive the ore after the third screening). The ore in each screen bucket 61 will be dispersed along the axis of the rotating rod 5 during the reciprocating movement of the screen bucket 61. Each falling ore particle can be dispersed into the next level screen bucket 61 under the action of the corresponding guide plate 65, ensuring screening efficiency while achieving the effect of multi-stage screening, so as to screen out ores of different particle size ranges, and thus facilitate subsequent fine mineral beneficiation operations.

[0043] As one embodiment of the present invention, refer to Figure 1 and Figure 3 The shaking assembly 7 includes a fixed plate 71, a second motor 72, a cam 73, an I-beam wheel 74, a drive rod 75, a collar 76, and a guide rod 77. The fixed plate 71 is located at the end of the rotating rod 5. The second motor 72 is a dual-shaft motor and is located on the fixed plate 71. The cam 73 is located at one end of the second motor 72. The I-beam wheel 74 is located on the screen hopper 61 in the middle position through a wheel frame and contacts the side wall of the cam 73. The drive rod 75 passes through the drive shaft of the second motor 72 and is keyed to the drive shaft of the second motor 72. A guide groove 31 is provided on the mounting plate 3. The collar 76 and the impact assembly 8 are respectively located at both ends of the drive rod 75. One end of the guide rod 77 is connected to the collar 76, and the other end is located inside the guide groove 31.

[0044] Under the above-mentioned conditions, when the second motor 72 is working, it can drive the cam 73 to rotate under the action of its own drive shaft. Since the sleeve 63 is sleeved on the rotating rod 5, and the cam 73 is in contact with the I-beam wheel 74, the cam 73 will squeeze the I-beam wheel 74 during the rotation process. After being squeezed, the I-beam wheel 74 will passively squeeze the corresponding screen bucket 61 under the action of the wheel frame, so that the screen bucket 61 is away from the second motor 72. Since the sleeve 63 is equipped with a spring 64 and the two ends of the spring 64 are respectively connected to the screen bucket 61 and the mounting plate 3, during the process of the screen bucket 61 moving away from the second motor 72, one of the springs 64 will be squeezed and the other spring 64 will be stretched. When the proximal end of the cam 73 moves away from the I-beam wheel 74, the two springs 64 will reset under their own elastic force, and in the process of resetting, they will drive the screen bucket 61 to reset. As the cam 73 continues to rotate, the screen bucket 61 will reciprocate along the axis of the rotating rod 5 under the sleeve action of the sleeve 63 and the rotating rod 5, thereby ensuring the normal screening function of the screen bucket 61.

[0045] As one embodiment of the present invention, refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The impact assembly 8 includes an extension rod 81, a guide plate 82, a disc 83, a sleeve rod 84, a connecting rod 85, a hammer head 86, an arc-shaped guide plate 87, a connecting block 88, and an L-shaped telescopic rod 89. The extension rod 81 is coaxially mounted on the I-beam wheel 74. The guide plate 82 is mounted on the extension rod 81. The disc 83 is slidably mounted on the extension rod 81 and keyed to the extension rod 81 and the guide plate 82. The sleeve rod 84 is mounted on the surface of the disc 83. The connecting rod 85 passes through the sleeve rod 84. One end of the connecting rod 85 is slidably connected to the guide plate 82, and the other end is connected to the hammer head 86. A groove 831 is formed on one side of the disc 83. The arc-shaped guide plate 87 is movably engaged with the groove opening of the groove 831. The connecting block 88 is rotatably mounted on the end of the drive rod 75. The two ends of the L-shaped telescopic rod 89 are respectively connected to the arc-shaped guide plate 87 and the connecting block 88. The connecting rod 85 encloses... The screen 61 comprises two sections, 851 and 852, which are hinged together and both pass through a sleeve rod 84. A guide plate 82 has a guide opening 821. A latch 8511 is provided at the end of section 851. A limit rod 8512 is provided inside the latch 8511 and passes through the guide opening 821. A hammer 86 is provided at the free end of section 852, which is a rubber rod. The guide opening 821 includes a horizontal section 8211 and an inclined section 8212 that are smoothly connected. When the screen 61 is flipped to a vertical position, the limit rod 8512 is located at the connection between the horizontal section 8211 and the inclined section 8212.

[0046] Under the above-mentioned conditions, when the ore particles clogging the screen hopper 61 affect the water washing and screening effect, motor 4 is started. The output end of motor 4 will drive the rotating rod 5 to rotate. The rotating rod 5 will drive the sleeve 63 to rotate under the action of being keyed to the sleeve 63. Since the sleeve 63 is set through the screen hopper 61 in the middle position and is connected to the fixed plate 71, the sleeve 63 will drive the screen hopper 61 and the fixed plate 71 to rotate during the rotation. Since motor 72 is a dual-shaft motor and its drive shaft is keyed to the drive rod 75, the drive rod 75 will rotate around the axis of the rotating rod 5 under the action of motor 72, following the fixed plate 71. During the rotation, the drive rod 75 will drive the collar 76 and the guide rod 77 to rotate synchronously. The guide rod 77 will move along the inside of the guide groove 31 during the rotation and will move through the collar during the movement. Ring 76 drives drive rod 75 to move along its own axis; the distance between guide groove 31 and rotating rod 5 is progressively set, and the distance between guide rod 77 and rotating rod 5 is the largest when guide wheel 611 contacts bracket 2; since the end of drive rod 75 is rotatably provided with connecting block 88, connecting block 88 will move synchronously with drive rod 75, and can drive disc 83 to move under the action of L-shaped telescopic rod 89 and arc-shaped guide plate 87. During the movement of disc 83, sleeve rod 84 can be driven to move, and during the movement of sleeve rod 84, connecting rod 85 can be driven to move. During the movement of connecting rod 85, the limiting rod 8512 at the bottom of section 1 851 will move along the direction of guide port 821 until screen bucket 61 flips to the vertical state and the limiting rod 8512 moves to the connection between horizontal section 8211 and vertical section;At this time, motor 4 continues to drive the rotating rod 5 to rotate, causing the screen bucket 61 to flip to an inverted state. At this time, the limiting rod 8512 enters the interior of the inclined section 8212, and the hinge point of section 1 851 and section 2 852 moves out from the interior of the sleeve rod 84. The distance between the hammer head 86 and the axis of the I-beam wheel 74 is greater than the distance between the outer wall of the screen bucket 61 in the middle position and the axis of the I-beam wheel 74. Since motor 2 72 is in a continuous working state, cam 73 will cooperate with motor 2 72 to contact the I-beam wheel 74 and drive the I-beam wheel 74 to rotate (in order to ensure that the I-beam wheel 74 can rotate stably under the action of cam 73, meshing tooth grooves can be opened on the surface of the I-beam wheel 74 and cam 73). During the rotation of the I-beam wheel 74, it can drive the extension rod 81 to rotate. Since the extension rod 81 and the disc 8 With a 3-key connection, the disc 83 rotates continuously under the action of the extension rod 81, driving the hammer 86 to rotate synchronously with the I-beam wheel 74. This allows the hammer 86 to intermittently impact the corresponding screen hopper 61 during its rotation. (During the impact, when the hammer 86 is blocked by the corresponding screen hopper 61, it will fold under the hinge action of section one 851 and section two 852 to ensure the normal rotation of the disc 83. After the hammer 86 passes the corresponding screen hopper 61, the centrifugal force generated during the rotation of the disc 83 allows section one 851 and section two 852 to return to a coaxial state, ensuring the normal operation of subsequent hammer impacts.) This facilitates the removal of ore particles clogging the screen hopper 61 after it is inverted, thus shortening downtime and ensuring the working efficiency of the mineral processing equipment.

[0047] A mineral processing method based on any of the above-mentioned multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore includes the following steps:

[0048] S1. Pour the ore to be screened into the top sieve 61;

[0049] S2. Start motor 72. Motor 72 drives cam 73 to rotate. When cam 73 rotates, it squeezes I-beam wheel 74 and drives three screen buckets 61 to move back and forth along the axis of rotating rod 5 under the action of two springs 64 to perform screening operation.

[0050] S3. When it is necessary to remove the ore remaining in the three screen hoppers 61 or to clean the ore particles blocked in the screen hoppers 61, start motor 4. Under the action of rotating rod 5 and sleeve 63, motor 4 drives the three screen hoppers 61 to flip to an inverted state, pouring out the remaining ore particles. During the flipping, under the action of guide groove 31, guide rod 77 makes hammer head 86 close to the screen hopper 61 in the middle position. When I-beam wheel 74 rotates under the action of cam 73, it drives hammer head 86 to rotate continuously, realizing intermittent impact on screen hopper 61 in the middle position, thereby discharging the ore particles blocked in screen hopper 61.

[0051] S4. Restart motor 4. Under the action of rotating rod 5 and sleeve 63, motor 4 drives the three screen buckets 61 to reset.

[0052] Working principle: When in use, the ore to be screened is filled into the uppermost screen hopper 61. The motor 72 is started, and the drive shaft of the motor 72 drives the cam 73 to rotate. When the cam 73 rotates, the distal end of the cam will squeeze the I-beam wheel 74. After being squeezed, the I-beam wheel 74 squeezes the screen hopper 61 in the middle position under the action of the wheel frame. The screen hopper 61 moves along the axis of the rotating rod 5 under the action of the sleeve 63 and the rotating rod 5. It squeezes and stretches the springs 64 at both ends of the sleeve 63 respectively. As the cam 73 continues to rotate, when the distal end of the cam 73 moves away from the I-beam wheel 74, the two springs 64 reset under the action of their own elasticity. During the reset process, the three screen hoppers 61 are reset synchronously. In this way, the three screen hoppers 61 move back and forth along the axis of the rotating rod 5 to achieve the effect of washing and screening the ore.

[0053] After screening is completed, motor 2 72 is turned off and motor 1 4 is started. The output end of motor 1 4 drives the rotating rod 5 to rotate. The rotating rod 5 drives the sleeve 63 and the screen hopper 61 in the middle position to flip through the key connection with the sleeve 63. Since the two adjacent screen hoppers 61 are connected by the fixed rod 62, the three screen hoppers 61 can be flipped synchronously, so as to take out the ore particles remaining in the three screen hoppers 61.

[0054] When some ore particles become clogged inside the corresponding screen hopper 61 after prolonged screening, affecting the water washing and screening effect, the three screen hoppers 61 are flipped to an inverted state by motor 4. Since the end of the rotating rod 5 is connected to motor 72 via a fixing plate 71, and the drive shaft of motor 72 is keyed to a drive rod 75, with a guide rod 77 connected to the end of the drive rod 75 via a collar 76, the drive rod 75, sleeve 63, and guide rod 77 all rotate around the axis of the rotating rod 5 under the action of motor 72. During rotation, the guide rod 77 moves along the trajectory of the guide groove 31. Because the end of the guide rod 77 is equipped with a connecting... Connecting block 88 is connected to the annular plate via L-shaped telescopic rod 89 and arc-shaped guide plate 87. Therefore, during the movement of the guide rod 77, the disc 83 can be pushed to move along the axis of the extension rod 81. During the movement of the disc 83, the distance between the guide groove 31 and the rotating rod 5 changes, causing the sleeve rod 84 on it to gradually move away from the motor 72. Since the extension rod 81 is provided with a guide plate 82, and the guide plate 82 has a guide opening 821 containing a horizontal section 8211 and an inclined section 8212, the connecting rod 85 passing through the sleeve rod 84 will be limited by the limiting rod 8512 provided on its included section 851. As the guide rod 8512 moves along the guide opening 821, and continues to move from the horizontal section 8211 of the guide opening 821 to the inclined section 8212 and inside the inclined section 8212, the hinge point of section 1 851 and section 2 852 moves out from inside the sleeve rod 84. When the I-beam wheel 74 rotates under the action of the cam 73, the cam 73 drives the extension rod 81 to rotate, and drives the disc 83 to rotate through the extension rod 81 and the guide plate 82. During the rotation of the disc 83, the sleeve rod 84 rotates, thereby driving section 1 851, section 2 852 and the hammer head 86 located at the end of section 2 852 to rotate. During the rotation of the hammer head 86, it can intermittently rotate. The hammer 86 impacts the screen 61 in the middle position. Since the screen 61 is in an inverted state and the two adjacent screen 61 are connected by a fixed rod 62, the vibration effect generated when the hammer 86 impacts the screen 61 in the middle position can be transmitted to the two screen 61 in the upper and lower positions through resonance. Since the motor 72 drives the cam 73 to rotate quickly, the hammer 86 can quickly impact the screen 61 in the middle position to reduce energy loss during vibration transmission and discharge the ore particles blocked inside each screen 61, thereby ensuring the normal use of each screen 61 and effectively ensuring the working efficiency of the mineral processing equipment while shortening downtime.

[0055] After the ore particles that clogged the screen bucket 61 are cleaned, the screen bucket 61 is reset by the motor 4. During the reset process, the guide rod 77 is reset by the guide groove 31, so that the hinge point of section 1 851 and section 2 852 re-enters the inside of the sleeve rod 84, thus preventing the hammer 86 from hitting the screen plate during the screening process.

[0056] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore, comprising a frame (1), a support (2), and a mounting plate (3), characterized in that: It also includes a motor (4), a rotating rod (5), a screening component (6), a shaking component (7), and an impact component (8). The motor (4) is mounted on the mounting plate (3). The rotating rod (5) is mounted on the mounting plate (3) and connected to the output end of the motor (4). The screening component (6) and the shaking component (7) are both mounted on the rotating rod (5) and connected to each other. The impact component (8) is mounted on the shaking component (7). When the shaking component (7) is powered on, it drives the screening component (6) to move back and forth along the axis of the rotating rod (5) and drives the shaking component (7) to rotate. When the screening component (6) is blocked, the motor (4) is powered on and drives the rotating rod (5) to rotate. When the rotating rod (5) rotates, it drives the screening component (6) and the shaking component (7) to rotate synchronously around the axis of the rotating rod (5). When the shaking component (7) rotates, it drives the impact component (8) away from the rotating rod (5) and gradually closer to the screening component (6). The screening assembly (6) includes a sieve bucket (61), a fixing rod (62), a sleeve (63), a spring (64), and a guide plate (65). Multiple sieve buckets (61) are arranged vertically. Two adjacent sieve buckets (61) are connected by a fixing rod (62). The sleeve (63) is installed through the middle sieve bucket (61). The rotating rod (5) is movably installed inside the sleeve (63) and is keyed to the sleeve (63). The spring (64) is installed between the mounting plate (3) and the sieve bucket (61) and is sleeved with the sleeve (63). The guide plate (65) is installed at the bottom of the sieve bucket (61). The opening of the sieve bucket (61) is inclined upward, and the opening of the guide plate (65) is inclined downward. A guide wheel (611) is installed at the bottom of the lowest sieve bucket (61). The shaking assembly (7) includes a fixed plate (71), a second motor (72), a cam (73), an I-beam wheel (74), a drive rod (75), a collar (76), and a guide rod (77). The fixed plate (71) is located at the end of the rotating rod (5). The second motor (72) is a dual-shaft motor and is located on the fixed plate (71). The cam (73) is located at one end of the second motor (72). The I-beam wheel (74) is located on the sieve bucket (61) in the middle position through a wheel frame and contacts the side wall of the cam (73). The drive rod (75) passes through the drive shaft of the second motor (72) and is keyed to the drive shaft of the second motor (72). A guide groove (31) is provided on the mounting plate (3). The collar (76) and the impact assembly (8) are respectively located at both ends of the drive rod (75). One end of the guide rod (77) is connected to the collar (76), and the other end is located inside the guide groove (31).

2. The multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore according to claim 1, characterized in that: The impact assembly (8) includes an extension rod (81), a guide plate (82), a disc (83), a sleeve rod (84), a connecting rod (85), a hammer head (86), an arc-shaped guide plate (87), a connecting block (88), and an L-shaped telescopic rod (89). The extension rod (81) is coaxially mounted on the I-beam wheel (74). The guide plate (82) is mounted on the extension rod (81). The disc (83) is slidably mounted on the extension rod (81) and keyedly connected to the extension rod (81) and the guide plate (82). The sleeve rod (84) is... On the surface of the disc (83), the connecting rod (85) is provided through the sleeve rod (84). One end of the connecting rod (85) is slidably connected to the guide plate (82), and the other end is connected to the hammer head (86). A groove (831) is provided on one side of the disc (83). The arc-shaped guide plate (87) is movably engaged at the groove opening of the groove (831). The connecting block (88) is rotatably disposed at the end of the drive rod (75). The two ends of the L-shaped telescopic rod (89) are respectively connected to the arc-shaped guide plate (87) and the connecting block (88).

3. A multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore according to claim 2, characterized in that: The connecting rod (85) includes a first segment (851) and a second segment (852). The first segment (851) and the second segment (852) are hinged and both pass through the sleeve rod (84). The guide plate (82) has a guide opening (821). The end of the first segment (851) has a bayonet (8511). The bayonet (8511) has a limit rod (8512) inside it. The limit rod (8512) passes through the guide opening (821). The hammer (86) is located at the free end of the second segment (852). The second segment (852) is a rubber rod.

4. A multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore according to claim 1, characterized in that: The distance between the guide groove (31) and the rotating rod (5) is set in a progressive manner, and the distance between the guide rod (77) and the rotating rod (5) is the largest when the guide wheel (611) contacts the bracket (2).

5. A multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore according to claim 3, characterized in that: The guide port (821) includes a horizontal section (8211) and an inclined section (8212) that are smoothly connected. When the sieve bucket (61) is flipped to a vertical state, the limiting rod (8512) is located at the connection between the horizontal section (8211) and the inclined section (8212).

6. A mineral processing method based on a multi-stage mineral processing equipment for fine screening of titanium-zirconium sand ore according to any one of claims 1-5, characterized in that: Includes the following steps: S1. Pour the ore to be screened into the uppermost screen hopper (61); S2. Start motor two (72). Motor two (72) drives cam (73) to rotate. When cam (73) rotates, it squeezes the I-beam wheel (74) and drives the three screen hoppers (61) to move back and forth along the axis of the rotating rod (5) for screening under the action of two springs (64); S3. When it is necessary to remove the ore remaining in the three screen hoppers (61) or to clean the ore particles blocked in the screen hoppers (61), start the motor. Machine 1 (4) and Motor 1 (4) drive the three screen buckets (61) to flip to an inverted state under the action of the rotating rod (5) and the sleeve (63), and pour out the remaining ore particles; when flipping, the guide rod (77) causes the hammer (86) to approach the screen bucket (61) in the middle position under the action of the guide groove (31), and the I-beam wheel (74) drives the hammer (86) to rotate continuously under the action of the cam (73), so as to realize the intermittent impact on the screen bucket (61) in the middle position, thereby discharging the ore particles blocked in the screen bucket (61); S4. Restart motor one (4). Under the action of the rotating rod (5) and the sleeve (63), motor one (4) drives the three screen buckets (61) to reset.

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