A cylinder washing machine with adjustable inclination

Abstract

The present application relates to the technical field of mine dressing machinery equipment, and particularly relates to a cylinder washing machine with adjustable inclination angle, which comprises a fixing frame and a rotating frame, one end of the rotating frame is rotationally connected with the top of the fixing frame, the other end of the rotating frame is connected with the fixing frame through an inclination angle adjusting mechanism, and the top of the rotating frame is fixedly connected with a washing mechanism. The inclination angle adjusting mechanism is arranged between the fixing frame and the rotating frame, so that the rotating frame is in an inclined state with the left higher than the right and the inclination angle is adjustable. An operator can flexibly change the inclination angle of the washing mechanism according to the mud content, granularity and processing capacity of the ore, so that the best balance between washing degree and processing capacity is achieved, various ore properties are adapted, and the use range of the equipment is expanded.

Description

Technical Field

[0001] This invention relates to the field of mining and mineral processing machinery and equipment, and in particular to a cylindrical washing machine with an adjustable tilt angle. Background Technology

[0002] The cylindrical washing machine is a commonly used pretreatment washing and beneficiation equipment in mining beneficiation production lines, mainly used for washing, desliming, and screening muddy ores. Its basic working principle is as follows: ore is fed into the inclined rotating cylinder through the high-end feed inlet. Driven by a transmission device, the cylinder rotates at low speed. Lifting blades or liners on the inner wall of the cylinder continuously lift and drop the material, causing it to rub and collide with each other during the tumbling process. Simultaneously, high-pressure water jets wash the ore, achieving the peeling and separation of clay and mud from the surface. The washed ore is discharged from the low-end outlet of the cylinder, while the muddy water is discharged through the screen holes in the cylinder wall or the discharge end.

[0003] Currently, existing cylindrical ore washing machines typically employ a fixed tilt angle design, with the cylinder inclination angle generally set between 3° and 5°. This angle remains fixed after the equipment is manufactured and cannot be adjusted during use. This fixed tilt angle structure has the following drawbacks in practical applications: First, it is impossible to flexibly adjust the residence time of materials in the washing cylinder according to the characteristics of different ores, such as mud content, particle size, and viscosity, making it difficult to balance washing effect and throughput. The properties of ores from different mines and different batches vary greatly. Ores with high mud content require longer washing time to be cleaned, while ores with low mud content require faster processing to increase output. A fixed inclination angle cannot adapt to this variation, and a compromise must often be made between washing effect and throughput.

[0004] Secondly, when processing highly viscous ores with high mud content, a fixed inclination angle often cannot provide sufficient scrubbing time, resulting in incomplete cleaning. For ores with high clay content and high viscosity, insufficient residence time of the material in the cylinder will lead to incomplete mud removal, resulting in excessive mud content in the discharge, affecting the efficiency of subsequent crushing, screening, and beneficiation processes, and even causing blockages in downstream equipment.

[0005] Therefore, there is an urgent need to develop a cylindrical washing machine with adjustable tilt angle that can flexibly and conveniently adjust the tilt angle of the cylinder according to the properties of the ore. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a cylindrical washing machine with adjustable tilt angle that can flexibly and conveniently adjust the tilt angle of the cylinder according to the properties of the ore.

[0007] The technical solution is as follows: A cylindrical ore washing machine with adjustable tilt angle, comprising a fixed frame and a rotating frame. One end of the rotating frame is rotatably connected to the top of the fixed frame, and the other end of the rotating frame is connected to the fixed frame via a tilt adjustment mechanism. A ore washing mechanism is fixedly connected to the top of the rotating frame. The tilt adjustment mechanism includes a guide rod installed along the axial direction of the ore washing mechanism. The guide rod is fixedly connected to the bottom of the rotating frame, and a sliding block is slidably connected to the guide rod. A transition shaft is rotatably connected to the side of the sliding block. A lifting plate is vertically slidably connected to the fixed frame. The top of the lifting plate is rotatably connected to the sliding block. A first hydraulic cylinder is also fixedly connected to the fixed frame. The movable end of the first hydraulic cylinder is rotatably connected to the adapter shaft. A feeding mechanism is provided at the feeding end of the ore washing mechanism. The feeding mechanism includes a feeding plate, a toothed ring, and a protruding rod. The toothed ring is installed at the feeding end of the ore washing mechanism and rotates synchronously with the ore washing mechanism. The feeding plate is located on one side of the feeding end of the ore washing mechanism. A protruding rod is provided on its side to cooperate with the toothed ring. When the ore washing mechanism rotates to wash ore, the toothed ring periodically presses against the protruding rod, causing the feeding plate to vibrate.

[0008] Furthermore, the ore washing mechanism includes an outer cylinder fixed to the top of the rotating frame, a rhomboid mesh cylinder coaxially rotatably installed in the middle of the outer cylinder, a waste discharge port at the bottom of the outer cylinder, a motor fixed to the bottom of the rotating frame, a transmission shaft connected to the output shaft of the motor, and transmission between the transmission shaft and the rhomboid mesh cylinder via a transmission component. A high-pressure water pipe is fixed to the top of the outer cylinder and penetrates the rhomboid mesh cylinder.

[0009] Furthermore, multiple rings are coaxially mounted on the outer surface of the rhomboid mesh cylinder, and the outer surface of the rings has an annular limiting groove. A support wheel is installed on the inner wall of the outer cylinder, and the support wheel is engaged in the limiting groove of the ring.

[0010] Furthermore, the inner wall of the rhomboid mesh cylinder is provided with multiple partitions along its circumference, and the partitions are installed at the junction of adjacent sides of the rhomboid mesh cylinder.

[0011] Furthermore, the feeding mechanism also includes a support frame fixed to the rotating frame, the unloading plate is slidably disposed on the top of the support frame, and a first spring is connected between the unloading plate and the support frame.

[0012] Furthermore, the toothed ring is concentrically fixed to one end of the diamond-shaped mesh cylinder near the feed plate, and the protruding rod is fixed to the side of the feed plate.

[0013] Furthermore, a support auxiliary mechanism is connected between the fixed frame and the rotating frame. The support auxiliary mechanism includes a support rod symmetrically and rotatably mounted on the rotating frame, a locking rod fixedly connected to the fixed frame, the support rod resting on the upper surface of the locking rod so that the support rod is in an inclined state, and a row of locking teeth is opened on the side of the support rod near the locking rod, and the locking rod is locked in the locking teeth.

[0014] Furthermore, the support auxiliary mechanism also includes a second spring, which is connected between the support rod and the rotating frame.

[0015] Furthermore, the support auxiliary mechanism also includes a second hydraulic cylinder, a push rod, and a mouth plate. A mouth plate is fixedly connected to the back of each support rod. The second hydraulic cylinder is symmetrically fixed to the fixed frame. A push rod is connected between the movable ends of the second hydraulic cylinder. The push rod passes through the mouth plate and contacts the inner wall of the mouth plate away from the support rod.

[0016] This invention provides an angle adjustment mechanism between the fixed frame and the rotating frame, allowing the rotating frame to be tilted with the left side higher than the right side and the tilt angle to be adjustable. Operators can flexibly change the tilt angle of the washing mechanism according to the mud content, particle size and processing capacity requirements of the ore, achieving the best balance between washing cleanliness and processing capacity, adapting to various mineral properties and expanding the scope of equipment application. In the tilt adjustment mechanism, the axial direction of the guide rod is parallel to the axial direction of the washing mechanism. The sliding block slides along the axial direction of the guide rod, the lifting plate slides vertically along the fixed frame, and the transfer shaft is rotatably connected to each component. The linear stroke of the first hydraulic cylinder is converted into the angular displacement of the rotating frame without interference. The motion conversion is smooth and not easy to jam. Moreover, the load is transmitted vertically, the first hydraulic cylinder is subjected to reasonable force and has a long service life. By setting up a support auxiliary mechanism, the locking teeth on the support rod engage with the locking rod, and after the tilt angle is adjusted to the correct position, the second spring keeps them in contact, forming a rigid diagonal brace, thereby achieving an auxiliary support effect. In addition, if the hydraulic cylinder is damaged due to an accident, the support rod can support the equipment independently, significantly improving the rigidity and safety of the whole machine in the working state. Furthermore, since the locking teeth are set on the support rod that rotates with the rotating frame, when the tilt angle is increased, the support rod can automatically disengage from the locking rod as it swings up with the rotating frame, and automatically reset and lock after it is in the correct position. Only when the tilt angle is decreased does the second hydraulic cylinder need to actively unlock through the through push rod and the mouth plate. One action simultaneously releases the locks on both the front and rear sides, with fewer operation steps, less effort, and a high degree of automation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the tilt adjustment mechanism and the ore washing mechanism of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the tilt adjustment mechanism of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the ore washing mechanism of the present invention.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of the ore washing mechanism of the present invention from another perspective.

[0023] Figure 7 This is a three-dimensional structural diagram of the support and auxiliary mechanism of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0025] Figure 9 This is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention from another perspective.

[0026] In the diagram: 1. Fixed frame, 2. Rotating frame, 3. Inclination adjustment mechanism, 31. Guide rod, 32. Sliding block, 33. Adapter shaft, 34. Lifting plate, 35. First hydraulic cylinder, 4. Ore washing mechanism, 41. Outer cylinder, 42. Waste discharge port, 43. Diamond mesh cylinder, 44. Motor, 45. Drive shaft, 46. Transmission component, 47. Ring, 48. Support wheel, 49. Partition plate, 410. High-pressure water pipe, 5. Feeding mechanism, 51. Toothed ring, 52. Support frame, 53. Discharge plate, 54. Protruding rod, 55. First spring, 6. Support auxiliary mechanism, 61. Support rod, 62. Clamping tooth, 63. Mouth-shaped plate, 64. Clamping rod, 65. Second spring, 66. Second hydraulic cylinder, 67. Push rod. Detailed Implementation

[0027] 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.

[0028] Example 1: See Figures 1 to 6This embodiment provides a cylindrical washing machine with adjustable tilt angle, including a fixed frame 1 and a rotating frame 2. The fixed frame 1 is the reference load-bearing component of the whole machine. It is welded from steel profiles and includes several vertical legs and longitudinal beams and transverse beams connected to the top of the vertical legs. The fixed frame 1 is anchored to the foundation or installation platform by anchor bolts through the bottom plate at the bottom of the legs. The rotating frame 2 is also a frame-shaped load-bearing frame welded from steel profiles. It straddles the fixed frame 1. The bottom right end of the rotating frame 2 is rotatably connected to the top right end of the fixed frame 1. Specifically, a downwardly extending ear plate is fixed to the bottom right end of the rotating frame 2. A shaft hole is opened on the ear plate. A bearing seat is fixed to the top right end of the fixed frame 1. A hinge shaft extends horizontally in the front-back direction and passes through the shaft hole of the bearing seat and the ear plate, so that the rotating frame 2 can swing up and down in the vertical plane around the hinge shaft. The hinge shaft constitutes the fulcrum for the swing of the rotating frame 2.

[0029] The left end of the rotating frame 2 is connected to the left side of the fixed frame 1 by an inclination adjustment mechanism 3. The inclination adjustment mechanism 3 lifts the left end of the rotating frame 2, so that the rotating frame 2 is tilted relative to the horizontal plane with the left side higher than the right side, and its tilt angle can be adjusted.

[0030] A cylindrical ore washing mechanism 4 is fixed to the top of the rotating frame 2. The axis of the ore washing mechanism 4 extends in the left and right direction and is consistent with the tilting posture of the rotating frame 2. The ore washing mechanism 4 completes the cleaning of muddy ore by rotating itself and spraying water on the ore. The left end of the ore washing mechanism 4 is the feeding end. The rotating frame 2 at the feeding end is equipped with a feeding mechanism 5. The ore is fed into the ore washing mechanism 4 through the feeding mechanism 5.

[0031] A support auxiliary mechanism 6 is also connected between the fixed frame 1 and the rotating frame 2. The support auxiliary mechanism 6 is used to lock and support the left end of the rotating frame 2 after the tilt angle is adjusted to the correct position, and to assist the tilt angle adjustment mechanism 3 in supporting the equipment. At the same time, in the event of an accident involving the tilt angle adjustment mechanism 3, it can independently support the components on the rotating frame 2, which significantly improves the rigidity and safety of the whole machine in the working state.

[0032] The overall working process of this embodiment is as follows: the ore enters the inclined washing mechanism 4 from the feed end (left end, high end). The washing mechanism 4 rotates while spraying water. Under the action of gravity and tumbling, the ore rolls and moves from the high end to the low end (right end). The mud is scrubbed, broken and discharged through the screen holes with the water flow. The washed ore is discharged from the low end, thus completing the washing operation.

[0033] See Figure 4The tilt adjustment mechanism 3 includes a guide rod 31, a sliding block 32, a connecting shaft 33, a lifting plate 34, and a first hydraulic cylinder 35. There are two guide rods 31, which are symmetrically fixed to the left side of the bottom of the rotating frame 2. The installation direction of the guide rods 31 is parallel to the axis of the washing mechanism 4, that is, the guide rods 31 extend horizontally in the left and right direction. The outer circular surface of the guide rods 31 is ground and has a low surface roughness to ensure the smoothness of subsequent sliding fit.

[0034] The sliding block 32 is slidably connected to the two guide rods 31 respectively. In one specific implementation, the sliding block 32 has a through hole that matches the shape of the guide rod 31. A linear bearing is press-fitted into the through hole, and the guide rod 31 passes through the linear bearing, so that the sliding block 32 can slide back and forth along the axial direction (left and right direction) of the guide rod 31 and is difficult to disengage. In another specific implementation, a T-shaped groove can be machined on the guide rod 31, and a slider embedded in the groove can be set on the sliding block 32, so that the two form a sliding fit.

[0035] The adapter shaft 33 is rotatably connected to the inner side of the sliding block 32. Here, the inner side refers to the side surface facing the center of the machine body width. The axis of the adapter shaft 33 extends horizontally in the front-back direction. The two ends of the adapter shaft 33 are rotatably connected to the inner sides of the left and right sliding blocks 32 through bearings (e.g., rolling bearings), so that the adapter shaft 33 constitutes a transverse connecting shaft between the front and rear sides. The middle part of the shaft body of the adapter shaft 33 is provided with a connecting lug or threaded joint for connecting to the movable end of the first hydraulic cylinder 35.

[0036] The lifting plate 34 consists of two pieces, which are symmetrically and vertically slidably connected to the left side of the fixed frame 1. Specifically, a vertical guide rail or vertical channel steel is fixed between the two vertical columns on the left side of the fixed frame 1. A slider or guide shoe that slides with the vertical guide rail is fixed on the back of the lifting plate 34, so that the lifting plate 34 can only move up and down in the vertical direction and cannot rotate around the vertical axis. The top of the lifting plate 34 extends upward and is rotatably connected to the sliding block 32 on the corresponding side through a pin. That is, the top of the lifting plate 34 and the sliding block 32 form a hinge.

[0037] The left side of the fixed frame 1 is symmetrically fixed with first hydraulic cylinders 35. Specifically, the cylinder body of the first hydraulic cylinder 35 is vertically fixed to the crossbeam or vertical column on the left side of the fixed frame 1 through the mounting seat. Its piston rod extends and retracts in the vertical direction. The movable end of the first hydraulic cylinder 35 is rotatably connected to the adapter shaft 33. Therefore, the extension and retraction force of the first hydraulic cylinder 35 can be transmitted to the front and rear sliding blocks 32 simultaneously through the adapter shaft 33. The front and rear first hydraulic cylinders 35 are supplied with oil by the same hydraulic station. The two cylinders extend and retract synchronously through parallel oil circuits or synchronous valves to prevent the rotating frame 2 from twisting during the lifting process.

[0038] The working principle of the tilt adjustment mechanism 3 is as follows: When it is necessary to increase the tilt angle of the rotating frame 2, the piston rod of the first hydraulic cylinder 35 is extended, and the piston rod pushes the sliding block 32 upward through the transition shaft 33. After the sliding block 32 is lifted, on the one hand, the lifting force is transmitted to the rotating frame 2 through the guide rod 31, so that the rotating frame 2 swings upward around the hinge axis at its right end, the left end of the rotating frame 2 rises, and the tilt angle of the washing mechanism 4 increases accordingly. On the other hand, since the movement trajectory of each point on the left end of the rotating frame 2 is an arc with the right end hinge axis as the center, the sliding block 32 also has a displacement component in the left and right directions while rising with the rotating frame 2. This displacement component is absorbed by the sliding block 32 sliding along the axial direction of the guide rod 31. At the same time, the lifting plate 34 slides vertically along the fixed frame 1, and the rotational connection between the transition shaft 33 and the sliding block 32, and between the lifting plate 34 and the sliding block 32 absorbs the angle changes between the components. Thus, the axial sliding pair formed by the guide rod 31 and the sliding block 32, the vertical sliding pair formed by the lifting plate 34 and the fixed frame 1, and the rotating pair formed by the adapter shaft 33 and each component cooperate to convert the linear stroke of the first hydraulic cylinder 35 into the angular displacement of the rotating frame 2 without interference. The mechanism will not jam due to trajectory mismatch, and the lifting plate 34 transmits the lateral force from the rotating frame 2 to the fixed frame 1. The first hydraulic cylinder 35 mainly bears the axial force and is in good stress condition.

[0039] Conversely, when the piston rod of the first hydraulic cylinder 35 retracts, the sliding block 32 descends, the left end of the rotating frame 2 falls back, and the tilt angle of the washing mechanism 4 decreases.

[0040] As a preferred, but not limited, implementation, the tilt angle adjustment range of the washing mechanism 4 is 3° to 10°, more preferably 3° to 8°, and it can continuously and steplessly remain at any angle during the tilt angle adjustment process. The size of the tilt angle determines the axial forward speed and residence time of the ore within the washing mechanism 4: when the ore has a high mud content, the mud clumps are difficult to disperse, or the ore particle size is fine, the tilt angle is reduced (e.g., 3° ​​to 4°), the ore's movement speed within the drum slows down, the residence time is prolonged, the number of washing cycles increases, and the washing cleanliness is improved; when the ore has a low mud content, coarse particle size, or when a higher throughput is required, the tilt angle is increased (e.g., 6° to 8°), the ore's forward speed accelerates, and the throughput per unit time increases. Therefore, this embodiment can conveniently adapt to different types of feed through the tilt angle adjustment mechanism 3, taking into account both washing cleanliness and throughput.

[0041] Example 2: See Figure 5 and Figure 6 The ore washing mechanism 4 includes an outer cylinder 41, a diamond-shaped mesh cylinder 43, a motor 44, a transmission shaft 45, a transmission component 46, a ring 47, a support wheel 48, a partition plate 49, and a high-pressure water pipe 410.

[0042] The outer cylinder 41 is a cylindrical trough with openings at both ends. The top of the outer cylinder 41 is fixed to the top of the rotating frame 2 by several saddles. The outer cylinder 41 is used to receive the mud and fine materials that fall out of the screen holes of the diamond-shaped mesh cylinder 43 and guide them to be discharged.

[0043] The bottom of the outer cylinder 41 is provided with a waste discharge port 42. The waste discharge port 42 is located in the low area of ​​the bottom of the outer cylinder 41. It can extend along the axial direction of the outer cylinder 41 in the shape of a long strip, or it can be a circular or rectangular hole. Since the outer cylinder 41 is in an inclined state with the left side higher than the right side along with the rotating frame 2, the mud and fine particles falling into the bottom of the outer cylinder 41 are collected at the lower end along the inclined surface of the bottom of the cylinder under the action of gravity, and finally discharged through the waste discharge port 42. It can also enter the sedimentation tank, hydrocyclone or return water system through the external chute or pipe of the waste discharge port 42 to realize mud-water separation and water recycling.

[0044] The rhomboid mesh cylinder 43 is coaxially and rotatably installed in the middle of the outer cylinder 41. The rhomboid mesh cylinder 43 is octagonal, meaning its cross-section is a regular octagon. It is formed by eight perforated plates with screen holes connected sequentially along the circumference. The perforated plates are welded together by frame profiles or angle steel to form a rigid polygonal prism cylinder. The left end of the rhomboid mesh cylinder 43 is the feed inlet, and the right end is the discharge outlet. The ore is conveyed from left to right within it. The screen hole diameter of the rhomboid mesh cylinder 43 is selected according to the target liberation particle size and the allowable particle size of the useful minerals, for example, it can be 10mm to 30mm.

[0045] The reason for setting the mesh cylinder as an octagonal rhomboid mesh cylinder 43 instead of a circular mesh cylinder is that: when the rhomboid mesh cylinder 43 rotates, the distance from each point on its inner wall to the axis changes periodically, and the height at which the material inside the cylinder is lifted also changes periodically. It will fall in a concentrated manner when each edge passes the top, forming a pulsating lifting action. Compared with a circular cylinder at the same rotation speed, this pulsating action is more effective in peeling and breaking up the mud clumps. At the same time, the octagonal shape forms outwardly protruding ridges at the junction of adjacent sides, providing a natural fixed base for the installation of the partition plate 49.

[0046] The motor 44 is fixed to the left side of the bottom of the rotating frame 2. The output shaft of the motor 44 is connected to the transmission shaft 45 through a coupling or a reducer. The transmission shaft 45 extends in the left-right direction, and its two ends are supported on the rotating frame 2 by bearing seats. The motor 44 should preferably be a low-speed, high-torque drive type with a reducer, so that the rotation speed of the diamond mesh cylinder 43 is in the range of 5 r / min to 20 r / min. This setting avoids the material from centrifugally sticking to the wall and reducing the scrubbing effect when the speed is too high, and also avoids insufficient lifting capacity when the speed is too low.

[0047] The drive shaft 45 and the rhomboid mesh cylinder 43 are connected by a transmission component 46. The transmission component 46 can be a gear drive or a belt drive. Taking a gear drive as an example, the transmission component 46 includes a driving gear fixed to the drive shaft 45 and a driven gear ring fixed to the end of the rhomboid mesh cylinder 43. The two mesh together, and the transmission ratio is designed according to the diameter of the rhomboid mesh cylinder 43 and the target speed. Taking a belt drive as an example, the transmission component 46 includes a driving pulley fixed to the drive shaft 45, an annular pulley fixed to the outer circumference of the rhomboid mesh cylinder 43, and a transmission belt tensioned between the two, with a tensioning pulley provided. Belt drives offer advantages such as overload slippage protection, low operating noise, and vibration reduction; gear drives offer accurate transmission ratios and high load-bearing capacity.

[0048] A high-pressure water pipe 410 is fixedly connected to the inner top of the outer cylinder 41, and the high-pressure water pipe 410 penetrates the rhomboid mesh cylinder 43. Specifically, the inlet end of the high-pressure water pipe 410 enters from the top of the outer cylinder 41 and extends axially along the rhomboid mesh cylinder 43. Its pipe body is fixed to the inner top of the outer cylinder 41 by a bracket, and the middle or end of the pipe body passes through the inner cavity of the rhomboid mesh cylinder 43. Since the high-pressure water pipe 410 is fixed to the stationary outer cylinder 41 and is not connected to the rhomboid mesh cylinder 43, the high-pressure water pipe 410 is not driven when the rhomboid mesh cylinder 43 rotates, and no rotary joint is required, making the structure simple and reliable. A circumferential gap is left between the pipe section extending into the inner cavity and the rhomboid mesh cylinder 43, so the rhomboid mesh cylinder 43 will not contact the high-pressure water pipe 410 during rotation. Multiple nozzles are arranged axially at intervals on the high-pressure water pipe 410 or multiple water spray holes are directly opened. The nozzles face the inner wall of the rhomboid mesh cylinder 43 and the material layer, and the water supply pressure is, for example, 0.3MPa to 0.8MPa. High-pressure water continuously washes the material as it is lifted and dropped, causing the stripped mud to be discharged through the screen holes with the water flow. At the same time, it has a self-cleaning effect on the screen holes of the diamond-shaped screen cylinder 43, reducing clogging.

[0049] Multiple rings 47 are coaxially mounted on the outer surface of the rhombic mesh cylinder 43. The multiple rings 47 are arranged at intervals along the axial direction of the rhombic mesh cylinder 43. The rings 47 are fixed to the outer periphery of the rhombic mesh cylinder 43 by welding or clamping. The outer surface of the rings 47 is provided with an annular limiting groove. The limiting groove extends continuously along the circumference of the rings 47, and its cross-section is V-shaped, U-shaped or arc-shaped.

[0050] A support wheel 48 is fixedly connected to the inner wall of the outer cylinder 41. The support wheel 48 is engaged in the limiting groove of the ring 47. Specifically, the support wheel 48 is rotatably connected to the inner wall of the outer cylinder 41. The support wheel 48 is evenly distributed along the circumference of the ring 47. On the one hand, it bears the weight of the rhomboid mesh cylinder 43 and its internal material in a rolling bearing manner, and transmits the radial load of the rhomboid mesh cylinder 43 to the outer cylinder 41 and the rotating frame 2. On the other hand, the contact between the groove wall of the limiting groove and the side edge of the wheel surface of the support wheel 48 forms axial limiting and circumferential guidance, restricting the rhomboid mesh cylinder 43 from axial movement and radial swaying during rotation. Thus, the cooperation between the support wheel 48 and the ring 47 provides guidance for the rotation of the rhomboid mesh cylinder 43, making the rotation of the rhomboid mesh cylinder 43 more stable and avoiding the swaying, jamming and uneven wear that easily occur in large-diameter polygonal mesh cylinders under low speed and heavy load.

[0051] The inner wall of the rhomboid mesh cylinder 43 is provided with multiple partitions 49 along its circumference. The partitions 49 are installed at the junction of adjacent sides of the rhomboid mesh cylinder 43, that is, the partitions 49 are fixed on each edge of the octagonal cross section and rotate synchronously with the rhomboid mesh cylinder 43. The extension direction of the partitions 49 is parallel to the axis of the rhomboid mesh cylinder 43. The partitions 49 on two adjacent edges and the two perforated plates in between form a bucket-shaped space. When the rhomboid mesh cylinder 43 rotates, the lower partition 49 flips the ore upward and carries it to a certain height as the cylinder rises. Then, when it passes the top and the opening of the partition 49 is facing down, the ore is poured down. The ore impacts the material layer below and the cylinder wall in a free fall, producing a strong scrubbing, abrasive and crushing effect, causing the mud, clay and stone-mud mixed on the surface of the ore to separate and fall off.

[0052] Example 3: See Figure 8 and Figure 9 The ore washing mechanism 4 has a feeding mechanism 5 on the rotating frame 2 at the feed end. The feeding mechanism 5 includes a toothed ring 51, a support frame 52, a feed plate 53, a protruding rod 54, and a first spring 55.

[0053] The support frame 52 is fixedly connected to the left side of the top of the rotating frame 2, and the bottom end of the support frame 52 is fixedly connected to the top of the rotating frame 2, so that it tilts together with the rotating frame 2. The top of the support frame 52 is provided with a slide rail or guide rod in the front-to-back direction, and the feeding plate 53 is slidably mounted on the slide rail or guide rod on the top of the support frame 52 by means of a slider or sliding sleeve. The feeding plate 53 is generally trough-shaped, and its front and rear sides are provided with upward-turned baffles, so that the ore falling into the plate is constrained in the trough and guided towards the feed port of the diamond mesh cylinder 43.

[0054] A first spring 55 connects the feed plate 53 and the support frame 52. The first spring 55 is a compression spring, which is sleeved on the guide rod 31 and presses against the feed plate 53 and the support frame 52. The first spring 55 is arranged in the front-back direction, for example, one set on each of the left and right sides of the feed plate 53. The first spring 55 provides a restoring force to the feed plate 53 and maintains an elastic connection between the feed plate 53 and the support frame 52, creating conditions for vibration.

[0055] A toothed ring 51 is concentrically fixed to the left end of the rhomboid mesh cylinder 43. The toothed ring 51 rotates together with the rhomboid mesh cylinder 43, and its plane of rotation is perpendicular to the axis of the rhomboid mesh cylinder 43. The teeth on the inner side of the toothed ring 51 are wedge-shaped, that is, the tooth surface of each tooth is an inclined slope. When viewed along the rotation direction of the toothed ring 51, the slope gradually rises and forms a steep tooth valley between the adjacent teeth.

[0056] The side of the feed plate 53 is fixed with a protruding rod 54. The protruding rod 54 extends horizontally in the front-back direction, and its end is stuck in the tooth of the toothed ring 51. That is, the end of the protruding rod 54 extends into the tooth valley on the inner side of the toothed ring 51 and is opposite to the wedge-shaped inclined surface of the two adjacent teeth.

[0057] The working principle of the feeding mechanism 5 is as follows: While the motor 44 drives the rhomboid mesh cylinder 43 to rotate, the toothed ring 51, fixed to the left end of the rhomboid mesh cylinder 43, rotates along with it. The rotating wedge-shaped teeth gradually push against the end of the protruding rod 54 in the direction of rotation. The protruding rod 54 drives the feeding plate 53 to slide in the front-back direction against the elastic force of the first spring 55, compressing and storing energy. When the inclined surface of the tooth passes the protruding rod 54 and the tooth valley crosses the end of the protruding rod 54, the protruding rod 54 loses its pushing force, the first spring 55 releases energy, and the feeding plate 53 quickly springs back to its original position. Then, the next tooth begins to push again. The toothed ring 51 rotates continuously, and the above pushing and springing process is repeated periodically at the frequency of the toothed ring 51's teeth, thus causing the feeding plate 53 to reciprocate in the front-back direction under the action of the toothed ring 51 and the protruding rod 54. The ore falling into the feed plate 53 is dispersed by vibration, and the material layer is loosened and evenly distributed. This effectively prevents sticky ore with high moisture content from arching, adhering, and clogging at the feed inlet, ensuring that the ore enters the diamond-shaped mesh cylinder 43 continuously and evenly, avoiding fluctuations in the material layer inside the cylinder and a decrease in washing cleanliness caused by inconsistent feeding. This vibration is entirely driven by the rotation of the diamond-shaped mesh cylinder 43, eliminating the need for additional power sources such as a vibration motor 44. The structure is highly coupled with the power transmission path of the whole machine, resulting in low energy consumption and minimal maintenance.

[0058] Example 4: See Figure 7 A support auxiliary mechanism 6 is connected between the fixed frame 1 and the rotating frame 2. The support auxiliary mechanism 6 includes a support rod 61, a locking tooth 62, a mouth-shaped plate 63, a locking rod 64, a second spring 65, a second hydraulic cylinder 66, and a push rod 67.

[0059] Support rods 61 are symmetrically and rotatably mounted on the left portion of the rotating frame 2 in the front-rear direction. Specifically, the upper end of each support rod 61 is rotatably connected to the left portion of the rotating frame 2 via a pin shaft.

[0060] A catch rod 64 is fixedly connected to the left portion of the fixing frame 1, extending in the front-rear direction. The catch rod 64 extends horizontally in the front-rear direction and is fixed to the left portion of the fixing frame 1, with a cross-section in a shape matching the catch teeth 62, such as a triangle, diamond or rack shape. The support rods 61 rest on the upper surface of the catch rod 64, so that the support rods 61 are in an inclined state, that is, each support rod 61 is supported obliquely downward on the catch rod 64 from its rotational connection point with the rotating frame 2.

[0061] A row of catch teeth 62 is provided on the side of each support rod 61 adjacent to the catch rod 64. The row of catch teeth 62 are arranged sequentially along the length direction of the support rod 61, and the tooth profile of each catch tooth 62 is complementary to the cross-sectional shape of the catch rod 64. The catch rod 64 is engaged in the catch teeth 62, at which point the swinging of the support rod 61 is constrained by the catch rod 64. The support rod 61 in its inclined posture transmits the load at the left end of the rotating frame 2 to the catch rod 64 and the fixing frame 1, forming a rigid support for the rotating frame 2.

[0062] The second spring 65 is connected between the support rod 61 and the rotating frame 2, and is used to maintain the position of the support rod 61 so that the support rod 61 can always abut against the catch rod 64. The second spring 65 may be a tension spring, with its two ends respectively hooked on the hanging rod of the support rod 61 and the hanging seat of the rotating frame 2. The tension of the second spring 65 makes the support rod 61 tend to rotate around its pin shaft toward the catch rod 64, thereby ensuring that the catch teeth 62 and the catch rod 64 are always in close contact, no loose teeth or disengagement occurs, and eliminating looseness and impact caused by manufacturing clearances and vibration.

[0063] A mouth-shaped plate 63 is fixedly connected to the left side surface of each support rod 61. The mouth-shaped plate 63 is a frame-shaped plate with an inner cavity, which is in the shape of a Chinese character "kou" (mouth) when viewed from the side. Second hydraulic cylinders 66 are symmetrically and fixedly connected to the fixing frame 1. The cylinder body of each second hydraulic cylinder 66 is fixed on the fixing frame 1, and its movable end extends and retracts in the left-right direction. A push rod 67 is connected between the movable ends of the second hydraulic cylinders 66. The push rod 67 extends horizontally in the front-rear direction, and its two ends are respectively connected to the movable ends of the front and rear second hydraulic cylinders 66. The push rod 67 penetrates through the mouth-shaped plates 63 and extends into their inner cavities. The push rod 67 is in contact with the inner left wall of each mouth-shaped plate 63, and leaves a space for the support rod 61 to swing to the left, that is, in the natural state, there is a clearance between the shaft of the push rod 67 and the inner right wall of each mouth-shaped plate 63, so that the support rod 61 can swing to the left by a certain angle without being blocked by the push rod 67 temporarily.

[0064] The working process of the above-mentioned auxiliary support mechanism 6 is divided into two states: locking and unlocking.

[0065] Locked state: When the tilt angle of the rotating frame 2 is adjusted to the correct position, the locking rod 64 engages with the locking teeth 62 of the support rod 61. The tension of the second spring 65 keeps the locking teeth 62 in contact with the locking rod 64. The support rod 61 forms a diagonal brace. The load on the left end of the rotating frame 2 is transmitted to the fixed frame 1 through the support rod 61 and the locking rod 64. The tilt angle is locked by a rigid support, thereby assisting the first hydraulic cylinder 35 in bearing the static load. In the event of an accident involving the first hydraulic cylinder 35, the locking rod 64 takes over the support of the rotating frame 2 and its components, improving equipment safety and operational stability.

[0066] It should be noted that when the tilt angle of the washing mechanism 4 needs to be increased, this embodiment does not require any operation on the support auxiliary mechanism 6: the piston rod of the first hydraulic cylinder 35 extends and lifts the sliding block 32, the left end of the rotating frame 2 rises, and the support rod 61, which is rotatably mounted on the rotating frame 2, swings upward with the rotating frame 2. Its lower end and the locking teeth 62 rise accordingly and automatically disengage from the locking rod 64, thus automatically disengaging from the lock. The tilt angle adjustment mechanism 3 can then normally drive the rotating frame 2 to swing upward. Since the disengagement direction is consistent with the lifting direction of the rotating frame 2, and the tension of the second spring 65 is much smaller than the driving force of the rotating frame 2 lifting upward, the automatic disengagement process is smooth and without obstruction. After the tilt angle is adjusted to the correct position, the second spring 65 pulls the support rod 61 against the locking rod 64, the locking teeth 62 re-engage with the locking rod 64, and the locking is completed automatically without any additional operation.

[0067] Only when it is necessary to reduce the tilt angle of the washing mechanism 4, that is, when the left end of the rotating frame 2 falls downward, the actuating end of the second hydraulic cylinder 66 drives the push rod 67 to move to the left. The rod body of the push rod 67 abuts against the inner left wall of the mouth plate 63 and pushes the mouth plate 63. The mouth plate 63 drives the support rod 61 to swing to the left around its pin axis. The locking teeth 62 on the support rod 61 are raised and disengaged from the locking rod 64, and the lock is released. After that, the tilt angle adjustment mechanism 3 can drive the rotating frame 2 to swing downward to reduce the tilt angle of the washing mechanism 4. After the tilt angle is reduced to the appropriate position, the second hydraulic cylinder 66 reverses its action to reset the push rod 67. The mouth plate 63 loses its thrust, and the second spring 65 pulls the support rod 61 to rotate around the pin axis to reset. The locking teeth 62 re-engage with the locking rod 64, and the rotating frame 2 is relocked at the new tilt angle position.

[0068] As can be seen from the above, the support auxiliary mechanism 6 in this embodiment automatically unlocks with the rotating frame 2 when the tilt angle is increased and automatically resets and locks after reaching the position. The second hydraulic cylinder 66 is only required to actively unlock when the tilt angle is decreased, which further simplifies the operation steps.

[0069] When performing ore washing operations using the cylindrical ore washing machine of this embodiment, the following steps are included: Step 1, Installation and Initial Setup. Anchor the mounting bracket 1 to the foundation, check the lubrication of each hinge point, sliding pair and rotating pair, connect the first hydraulic cylinder 35 and the second hydraulic cylinder 66 to the hydraulic station, and connect the high-pressure water pipe 410 to the high-pressure water supply pump set.

[0070] The second step is to set the inclination angle. The required inclination angle is determined based on the mud content, particle size distribution, and target throughput of the ore to be washed.

[0071] If the tilt angle needs to be increased, the first hydraulic cylinders 35, which extend and retract synchronously at the front and rear, directly push the adapter shaft 33. The adapter shaft 33 drives the sliding block 32 to rise. The sliding block 32 drives the rotating frame 2 to swing upward around the right end hinge axis via the guide rod 31. The left end of the rotating frame 2 rises, and the tilt angle of the washing mechanism 4 increases accordingly. During this process, the support rod 61 automatically lifts away from the locking rod 64 as the rotating frame 2 swings upward. The locking teeth 62 disengage from the locking rod 64 on their own, without the need to operate the second hydraulic cylinder 66. During this process, the sliding block 32 slides along the axial direction of the guide rod 31, and the lifting plate 34 slides vertically along the fixed frame 1, automatically compensating for the swing arc. After the tilt angle is in place, the support rod 61, under the action of the tension of the second spring 65 and the downward trend of the rotating frame 2, re-attaches to the locking rod 64, and the locking teeth 62 engage with the locking rod 64, locking the tilt angle.

[0072] If the tilt angle needs to be reduced, the second hydraulic cylinder 66 first drives the push rod 67 to move to the left. The push rod 67 pushes against the inner left wall of the orifice plate 63, causing the orifice plate 63 to swing the support rod 61 to the left. The locking teeth 62 disengage from the locking rod 64, releasing the lock. Then, the piston rod of the first hydraulic cylinder 35 is controlled to retract, and the adapter shaft 33 drives the sliding block 32 to descend. The left end of the rotating frame 2 falls back, and the tilt angle of the washing mechanism 4 decreases accordingly. After the tilt angle is in place, the second hydraulic cylinder 66 reverses its action to reset the push rod 67. The second spring 65 pulls the support rod 61 to reset, and the locking teeth 62 re-engage with the locking rod 64, locking the tilt angle.

[0073] The third step is to start the machine. Start the motor 44, which drives the diamond mesh cylinder 43 to rotate at low speed via the transmission shaft 45 and the transmission component 46. At the same time, turn on the high-pressure water pipe 410 to spray water into the inner cavity.

[0074] The fourth step is feeding and dispersing. The ore falls from the chute or conveyor belt of the previous process into the feeding plate 53. The rotating toothed ring 51 repeatedly pushes the protruding rod 54 with its wedge-shaped teeth. The feeding plate 53 vibrates back and forth with the cooperation of the first spring 55, which disperses the sticky and wet ore that is prone to bridging and feeds it evenly into the left end feed port of the diamond mesh cylinder 43.

[0075] The fifth step is scrubbing and screening. The ore enters the inclined rhomboid screen cylinder 43, and as the cylinder rotates, it is flipped up by the partition plate 49 and lifted to a certain height before falling. Through repeated lifting, falling and impact, it is scrubbed and abraded, and the mud and clay are broken down. Under the washing of high-pressure water, the separated mud and fine particles fall through the screen holes of the rhomboid screen cylinder 43 into the bottom of the outer cylinder 41, and gather at the lower end along the inclined bottom of the cylinder, and are discharged through the waste outlet 42. At the same time, under the component of gravity along the inclined surface and the pushing action of the partition plate 49, the ore gradually moves forward from the high end (left) to the low end (right).

[0076] Step 6: Discharge. The washed ore is discharged from the discharge port at the right end of the diamond-shaped screen cylinder 43 and enters the next crushing, screening, or separation process. When stopping the machine, first stop feeding, and after the material in the cylinder is basically emptied, turn off the motor 44 and the water supply.

[0077] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cylindrical ore washing machine with adjustable tilt angle, comprising a fixed frame (1) and a rotating frame (2), one end of the rotating frame (2) being rotatably connected to the top of the fixed frame (1), the other end of the rotating frame (2) being connected to the fixed frame (1) via a tilt angle adjustment mechanism (3), and a ore washing mechanism (4) being fixedly connected to the top of the rotating frame (2); characterized in that, The tilt adjustment mechanism (3) includes a guide rod (31) installed along the axial direction of the washing mechanism (4). The guide rod (31) is fixed to the bottom of the rotating frame (2). A sliding block (32) is slidably connected to the guide rod (31). A transition shaft (33) is rotatably connected to the side of the sliding block (32). A lifting plate (34) is vertically slidably connected to the fixed frame (1). The top of the lifting plate (34) is rotatably connected to the sliding block (32). A first hydraulic cylinder (35) is also fixedly connected to the fixed frame (1). The movable end of the first hydraulic cylinder (35) is connected to the transition shaft. (33) Rotary connection, the feeding end of the ore washing mechanism (4) is provided with a feeding mechanism (5), the feeding mechanism (5) includes a feeding plate (53), a toothed ring (51) and a protruding rod (54). The toothed ring (51) is installed at the feeding end of the ore washing mechanism (4) and rotates synchronously with the ore washing mechanism (4). The feeding plate (53) is located on one side of the feeding end of the ore washing mechanism (4), and its side is provided with a protruding rod (54) that presses against the toothed ring (51). When the ore washing mechanism (4) rotates to wash ore, the toothed ring (51) periodically presses against the protruding rod (54), causing the feeding plate (53) to vibrate.

2. The adjustable-angle cylindrical ore washing machine according to claim 1, characterized in that, The ore washing mechanism (4) includes an outer cylinder (41) fixed to the top of the rotating frame (2). A rhomboid mesh cylinder (43) is coaxially rotatably installed in the middle of the outer cylinder (41). A waste discharge port (42) is opened at the bottom of the outer cylinder (41). A motor (44) is fixed to the bottom of the rotating frame (2). A transmission shaft (45) is connected to the output shaft of the motor (44). The transmission shaft (45) and the rhomboid mesh cylinder (43) are driven by a transmission component (46). A high-pressure water pipe (410) is fixed to the top of the outer cylinder (41). The high-pressure water pipe (410) passes through the rhomboid mesh cylinder (43).

3. The adjustable-angle cylindrical ore washing machine according to claim 2, characterized in that, The outer surface of the rhomboid mesh cylinder (43) is also coaxially mounted with multiple rings (47). The outer surface of the rings (47) has an annular limiting groove. The inner wall of the outer cylinder (41) is equipped with a support wheel (48), which is stuck in the limiting groove of the ring (47).

4. The tilt-adjustable cylindrical ore washing machine according to claim 2, characterized in that, The inner wall of the rhomboid mesh cylinder (43) is provided with a plurality of partitions (49) along its circumference, and the partitions (49) are installed at the junction of adjacent sides of the rhomboid mesh cylinder (43).

5. The adjustable-angle cylindrical ore washing machine according to claim 1, characterized in that, The feeding mechanism (5) also includes a support frame (52) fixed on the rotating frame (2), the feeding plate (53) is slidably disposed on the top of the support frame (52), and a first spring (55) is connected between the feeding plate (53) and the support frame (52).

6. The tilt-adjustable cylindrical ore washing machine according to claim 5, characterized in that, The toothed ring (51) is coaxially fixed to one end of the diamond mesh cylinder (43) near the feed plate (53), and the protruding rod (54) is fixed to the side of the feed plate (53).

7. The tilt-adjustable cylindrical ore washing machine according to claim 1, characterized in that, A support auxiliary mechanism (6) is connected between the fixed frame (1) and the rotating frame (2). The support auxiliary mechanism (6) includes a support rod (61) symmetrically rotated on the rotating frame (2). A locking rod (64) is fixed on the fixed frame (1). The support rod (61) rests on the upper surface of the locking rod (64), so that the support rod (61) is in an inclined state. A row of locking teeth (62) is opened on the side of the support rod (61) near the locking rod (64). The locking rod (64) is locked in the locking teeth (62).

8. The tilt-adjustable cylindrical ore washing machine according to claim 7, characterized in that, The support auxiliary mechanism (6) further includes a second spring (65), which is connected between the support rod (61) and the rotating frame (2).

9. A cylindrical ore washing machine with adjustable tilt angle according to claim 7, characterized in that, The support auxiliary mechanism (6) further includes a second hydraulic cylinder (66), a push rod (67) and a mouth plate (63). The back of the support rod (61) is fixedly connected to the mouth plate (63). The second hydraulic cylinder (66) is symmetrically fixedly connected to the fixed frame (1). The push rod (67) is connected between the movable ends of the second hydraulic cylinder (66). The push rod (67) passes through the mouth plate (63) and contacts the inner wall of the mouth plate (63) away from the support rod (61).

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