Efficient mineral screening instrument

Abstract

The utility model provides an efficient mineral screening instrument which comprises a screen support, a screen, a top cover and a driving base, the screen is installed on the screen support, the upper end of the screen is fixed on the screen support through the top cover, the bottom of the screen support is located on the driving base, a water inlet is formed in the top cover, a feeding port is formed in the top cover, and the feeding port is located on the driving base. The sieve support comprises a funnel-shaped ore receiving hopper, the funnel-shaped ore receiving hopper is arranged at the bottom of the sieve, an ore discharging groove is formed in the funnel-shaped ore receiving hopper, and the driving base is used for driving the sieve to horizontally reciprocate at a preset rotation angle and vertically move up and down at a preset height. The screen surface is the spherical surface with the radian and is provided with the grid support, relative deformation of the screen surface is weak, and mineral accumulation caused by standing waves is avoided. The centrifugal force and the spherical structure ensure uniform and loose material layer distribution. The screen surface horizontally swings around the central shaft and vertically swings up and down along the shaft, and due to speed difference and periodic circulation of a mineral feeding layer and a mineral discharging layer, layered accumulation of minerals due to particle size and density difference is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral screening technical field especially relates to a high -efficient mineral screening instrument. BACKGROUND

[0002] Mineral particle size analysis is an important technology in mineralogy, mainly used for analyzing the morphology, size and distribution characteristics of mineral particles. Because it is directly related to the physical properties, chemical properties and processing performance of minerals. Through mineral particle size analysis, the particle size composition, distribution rule and morphological characteristics of mineral particles can be understood, providing an important theoretical basis for mineral beneficiation and processing. Commonly used mineral particle size analysis methods include screening method, sedimentation method, microscope method, laser particle size analyzer method and ultrasonic particle size analysis method. Among them, the screening method has low cost, easy to use and high accuracy, and is widely used in production practice and analysis test.

[0003] Common screening equipment can be divided into fixed screen, rolling screen, cylinder screen, plane shaking screen, plane vibrating screen and common vibrating screen according to its structure and movement form. Among them, plane shaking screen, plane vibrating screen and common vibrating screen are commonly used for laboratory mineral particle size analysis, but due to standing wave, mineral layering and other reasons, the material layer distribution is uneven, and the screening efficiency is insufficient, so artificial hand screening is often used for further inspection and screening, and further accurate screening and inspection screening are carried out. The work efficiency is low, and the labor consumption is large.

[0004] In view of the deficiency of the conventional screening equipment, a new type of high-efficiency mineral screening instrument needs to be designed, which further improves the screening efficiency on the basis of simple structure and convenient operation, and reduces or replaces the artificial hand screening. Utility model content

[0005] The utility model provides a new type of high-efficiency mineral screening instrument, which further improves the screening efficiency on the basis of simple structure and convenient operation, and reduces or replaces the role of artificial hand screening, which will have great popularization and application and prospect. The technical means adopted by the utility model are as follows:

[0006] A kind of high-efficiency mineral screening instrument, including screen support, screen, top cover and drive base, the screen is installed on screen support, and the upper end of screen is fixed on screen support by top cover, the bottom of screen support is located on drive base, water inlet is provided on top cover, the top cover is equipped with feed inlet, the screen support includes funnel type mineral receiving hopper, the funnel type mineral receiving hopper is arranged at the bottom of screen, and discharge slot is arranged on the funnel type mineral receiving hopper, and the drive base is used to drive screen to carry out horizontal reciprocating motion of preset rotation angle and vertical motion of preset height.

[0007] Further, the sieve support comprises a support body, at least two vertically arranged slotted round rods are arranged on two sides of the support body, and slots on the slotted round rods are uniformly arranged at preset intervals, the preset intervals are the same as the height of the sieve, a conical hopper type ore receiving hopper is arranged in the middle of the support body, the ore discharging groove extends from the middle of the ore receiving hopper to the support body, and the end of the ore discharging groove is in the form of a tube and protrudes from the support body.

[0008] Further, the sieve comprises a sieve body and a grid type fixing framework, the sieve body comprises a sieve wall and a sieve surface arranged on the bottom surface of the sieve wall, the sieve surface is a spherical surface structure with a preset curvature, and the grid type fixing framework is arranged on the sieve surface to reinforce the sieve surface.

[0009] Further, the top cover comprises a cover body, a mounting positioning plate and a rotating handle, the cover body can be buckled above the sieve, circular holes are formed at two ends of the mounting positioning plate, and the circular holes are used for cooperating with and fixing the round rod slots of the sieve support, the upper side of the rotating handle is a water inlet, and the rotating handle and the mounting positioning plate are provided with a bolt mounting hole, and a bolt is arranged in the bolt mounting hole in the working state of the device.

[0010] Further, the number of the sieves is at least one, and when the number of the sieves is multiple, the sieves are vertically stacked together layer by layer.

[0011] Further, the driving base is provided with a motor, a plurality of openings are arranged on the circumference of the driving base, a horizontal action mechanism for horizontal rotation reciprocating motion is arranged on the circumference of the driving base, specifically, the horizontal action mechanism comprises a gear, a connecting rod, a rotating disc and a horizontal rod, the gear is engaged with the output end of the motor, the gear is connected with the rotating disc through the connecting rod, the rotating disc is arranged vertically to the horizontal plane, the horizontal rod is arranged vertically to the rotating disc, the bottom of the sieve support is provided with a plurality of fixing rods and rolling parts, the rolling parts are arranged on the fixing rods, the circumference of the driving base is provided with a plurality of fixed bases with curvature matched with the rolling parts, and the rolling parts are arranged on the fixed bases.

[0012] Further, the driving base comprises a vertically arranged torsion spring, and the bottom of the hopper type ore receiving hopper is provided with a cylindrical groove matched with the torsion spring.

[0013] The novel high-efficiency mineral sieve separator is simple to operate, high in sieve separation efficiency, capable of reducing or replacing manual sieve separation, and good in application effect.

[0014] Compared with the prior art, the novel high-efficiency mineral sieve separator has the following beneficial effects:

[0015] 1. The sieve's fastening components are reliable and easy to operate.

[0016] 2. The screen surface is a curved sphere with a mesh support, resulting in relatively weak deformation and no standing waves that could cause mineral accumulation. Centrifugal force and the spherical structure ensure a uniform and loose material layer distribution.

[0017] 3. The screen surface swings horizontally around the central axis and vertically up and down along the axis. Due to the speed difference between the upper and lower mineral layers, the minerals cycle periodically, avoiding stratification due to differences in particle size and density. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Fig. 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Fig. 2 This is a schematic diagram of the sieve support structure.

[0021] Fig. 3 This is the front view of the sieve support.

[0022] Fig. 4 This is a schematic diagram of a sieve structure.

[0023] Fig. 5 This is a schematic diagram of the top cover structure.

[0024] Fig. 6 This is a schematic diagram of the drive base.

[0025] Fig. 7 This is a schematic diagram of mineral movement and decomposition during the screening process of this invention.

[0026] In the diagram: 1. Screen support; 2. Screen; 3. Top cover; 4. Drive base; 11. Fixing rod; 12. Rolling bearing; 13. Receiving hopper; 14. Grooved round rod; 15. Discharge trough; 16. Cylindrical groove; 21. Screen surface; 22. Grid-type fixing frame; 31. Round hole; 32. Water inlet; 33. Thread; 34. Rotating handle; 35. First pin mounting hole; 36. Second pin mounting hole; 37. Cover; 38. Mounting positioning plate; 41. Torsion spring; 42. Motor; 43. Gear; 44. Horizontal bar; 45. Fixing base. Detailed Implementation

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] As Figs. 1-7 The utility model discloses a kind of high-efficiency mineral screening instruments, including sieve support 1, sieve 2, top cover 3 and drive base 4, the sieve 2 is installed on sieve support 1, the upper end of sieve 2 is installed on sieve support 1 by top cover 3, when sieve 2 is multiple, topmost sieve 2 installs top cover 3, the bottom of sieve support 1 is located on drive base 4, water inlet 32 is provided on the top cover 3, the top cover 3 is equipped with feed inlet, the sieve 2 is equipped with sieve hole, the sieve support 1 includes funnel type ore receiving hopper 13, the funnel type ore receiving hopper 13 is arranged at the bottom of sieve 2, when sieve 2 is multiple, the sieve 2 at the lowermost end corresponds with funnel type ore receiving hopper 13, discharge chute 15 is provided on the funnel type ore receiving hopper 13, and the drive base 4 is used to drive sieve 2 to carry out the horizontal reciprocating motion of preset rotation angle and the vertical motion of preset height up and down. In the embodiment, sieve has the sieve hole (not shown in drawing) of even dense preset aperture.

[0029] The sieve support 1 includes support body, at least two vertical setting slotted round rods 14 are provided on the both sides of the support body, the slotting on the slotted round rod 14 is evenly arranged at preset interval, and the preset interval is the same as the height of sieve. The middle part of support body is provided with conical funnel type ore receiving hopper 13. Discharge chute 15 extends from the middle part of ore receiving hopper 13 funnel to the support body, and the end thereof is tubular and protrudes from the support body.

[0030] The sieve 2 includes sieve body and grid type fixed framework 22. Sieve body 2 includes sieve wall and sieve surface 21 arranged on the bottom surface of sieve wall. The sieve surface 21 is spherical surface structure with preset curvature. The grid type fixed framework 22 is arranged on the sieve surface 21 to reinforce the sieve surface 21.

[0031] The top cover 3 comprises a cover body 37, a mounting positioning plate 38 and a rotating handle 34, the cover body 37 can be buckled above the sieve 2, the mounting positioning plate 38 is arranged above the cover body 37, circular holes 31 are arranged at both ends of the mounting positioning plate 37, which are used for cooperation and fixation with the sieve support circular rod groove, the mounting positioning plate 38 is mounted on the cover body through the screw thread 33, the upper part of the rotating handle is the water inlet 32, which is used for wet screening and water adding, the rotating handle 34 and the mounting positioning plate are provided with the first bolt mounting hole 35 and the second bolt mounting hole 36, in the embodiment, a circle of bolt mounting holes are arranged on the outer periphery of the disc-shaped handle, and the bolts are arranged in the bolt mounting holes in the working state of the device.

[0032] Based on the difference of materials, the number of the sieves 2 is at least one; when the number is multiple, each sieve 2 is stacked together in the vertical direction.

[0033] The driving base 4 is provided with a motor 42, a plurality of openings are arranged on the circumference of the driving base 4, a horizontal action mechanism for horizontal rotation reciprocating motion is arranged on the circumference of the driving base 4, specifically, the horizontal action mechanism comprises a gear 43, a connecting rod, a rotating disc and a horizontal rod 44, the gear 43 is engaged with the output end of the motor 42, the gear 43 is connected with the rotating disc through the connecting rod, the rotating disc is arranged perpendicularly to the horizontal plane, the horizontal rod 44 is arranged perpendicularly to the rotating disc, the bottom of the sieve support 1 is provided with a plurality of fixed rods 11 and rolling parts, in the embodiment, the rolling part is specifically a rolling bearing 12, the rolling part is mounted on the fixed rod 11, the circumference of the driving base 4 is provided with a fixed base 45 with an arc which matches a plurality of rolling parts, the rolling part is located on the fixed base, in the working state, the horizontal rod is in contact with the fixed rod, the rolling part and the fixed base are periodically relatively displaced, the sieve and the sieve support are driven to move vertically and periodically. In the embodiment, the number of the fixed rods is eight, in other optional embodiments, the number can be adjusted according to the actual situation.

[0034] In the working process, the motor drives the horizontal rod 44 to rotate around the shaft through the gear 43, the horizontal rod 44 drives the sieve support 1 to move periodically and horizontally reciprocating around the shaft through the torsional spring 41 arranged on the upper part of the driving base 4, the circumference of the base is provided with a slope 45 which corresponds to the combination of the fixed rod and the rolling bearing, the slope makes the sieve support 1 move up and down while moving horizontally reciprocating.

[0035] The driving base comprises a torsional spring 41 arranged vertically, the bottom of the funnel-shaped ore receiving hopper is provided with a cylindrical groove 16 which matches the torsional spring.

[0036] The utility model discloses a working principle as follows: the sieve surface horizontal direction starts to rotate periodically around the vertical axis small angle reciprocating, and vertical direction vertical motion, in a cycle, the speed is accelerated first and then decelerated, and then reverse acceleration, and then deceleration. Acceleration motion, the mine of sieve surface lower layer is affected by sieve surface, accelerates fast, and the speed is high, and centrifugal force under the action moves outward, and the upper layer of mine of sieve surface accelerates slowly, and the speed is low, and fills into sieve surface lower layer; Deceleration motion, the sieve surface lower layer decelerates fast, and the speed is slow, under the action of the inclined plane, moves to the inner layer, and the upper layer of mine decelerates slowly, and the speed is fast, and fills into the lower layer of sieve surface. Under the action of the sieve surface horizontal direction starts to rotate periodically around the vertical axis small angle reciprocating motion, the material layer disperses evenly, and the accumulation is thick bottom small. Under the action of sieve surface vertical motion and downward water flow, the mineral particle less than sieve hole moves to the lower layer of sieve surface. Because effective sieve area is big, and the material layer is thin, and the sieve surface does not have standing wave point mineral accumulation, therefore novel high -efficient mineral sieve separator has the advantages of high screening efficiency, and reaches the end point of screening fast.

[0037] As a specific embodiment, the utility model also provides a kind of high-efficiency mineral sieve separator's use method, comprising the following steps:

[0038] Assemble drive base and sieve support.

[0039] Select sieve hole suitable sieve, and stack on base. Add appropriate amount of to be analyzed ore sample on the uppermost sieve, and cover with top cover.

[0040] Fix top cover on the groove of sieve support, tighten disc-shaped handle, and insert fixed pin.

[0041] Connect water inlet and faucet, discharge outlet and sample bucket, open faucet, and adjust wet sieve water volume.

[0042] Turn on sieve separator, and the sieve surface horizontal direction starts to rotate periodically around the vertical axis reciprocating, and vertical direction vertical motion. Under the action of centrifugal force and speed difference of material layer, material layer starts to disperse on sieve surface, and material layer circulates up and down.

[0043] After screening for appropriate time, check discharge outlet discharge, when discharge outlet discharge quality is not greater than 0.1% of total material mass in 1min, reach screening end point, otherwise continue screening.

[0044] After reaching screening end point, turn off sieve separator, turn off water inlet, pull out fixed pin, and tighten disc-shaped handle. Unfasten top cover and sieve support, open top cover, and flush, collect sieve surface and sieve mineral in turn, and end screening work.

[0045] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-efficiency mineral sieving instrument, characterized in that, The system includes a sieve support, a sieve, a top cover, and a drive base. The sieve is mounted on the sieve support, and the upper end of the sieve is fixed to the sieve support by the top cover. The bottom of the sieve support rests on the drive base. The top cover is provided with a water inlet and a feed inlet. The sieve support includes a funnel-shaped ore receiving hopper, which is located at the bottom of the sieve. The funnel-shaped ore receiving hopper is provided with a discharge trough. The drive base is used to drive the sieve to perform horizontal reciprocating motion at a preset rotation angle and vertical up-and-down motion at a preset height. The drive base houses a motor, and several openings are provided around the circumference of the drive base. A horizontal actuation mechanism for horizontal reciprocating motion is installed around the circumference of the drive base. Specifically, the horizontal actuation mechanism includes a gear, a connecting rod, a turntable, and a horizontal rod. The gear meshes with the output end of the motor, and the gear is connected to the turntable via the connecting rod. The turntable is set perpendicular to the horizontal plane, and the horizontal rod is set perpendicular to the turntable. Several fixed rods and rolling parts are provided at the bottom of the sieve support. The rolling parts are mounted on the fixed rods. The drive base has an arc-shaped fixed base around its circumference that mates with the rolling parts. The rolling parts sit on the fixed base. In the working state, the horizontal rod contacts the fixed rods, and the rolling parts and the fixed base undergo periodic relative displacement, driving the sieve and sieve support to move vertically and periodically.

2. The high-efficiency mineral sieving instrument according to claim 1, characterized in that, The screen support includes a support body, on both sides of which are provided at least two vertically arranged grooved round rods. The grooves on the grooved round rods are evenly arranged at a preset interval, which is the same as the height of the screen. A conical funnel-shaped ore receiving hopper is provided in the middle of the support body. The ore discharge trough extends from the middle of the ore receiving hopper to the support body, and its end is tubular and protrudes from the support body.

3. The high-efficiency mineral sieving instrument according to claim 1, characterized in that, The sieve includes a sieve body and a mesh-type fixed frame. The sieve body includes a sieve wall and a sieve surface disposed on the bottom surface of the sieve wall. The sieve surface is a spherical structure with a preset curvature. The mesh-type fixed frame is disposed on the sieve surface to reinforce the sieve surface.

4. The high-efficiency mineral sieving instrument according to claim 1, characterized in that, The top cover includes a cover body, a mounting and positioning plate, and a rotating handle. The cover body can be fastened to the top of the sieve. The mounting and positioning plate is located above the cover body. Circular holes are provided at both ends of the mounting and positioning plate for fixing with the circular rod groove of the sieve support. The top of the rotating handle is a water inlet. The rotating handle and the mounting and positioning plate are provided with pin mounting holes. When the device is in operation, a pin is installed in the pin mounting holes.

5. The high-efficiency mineral sieving instrument according to claim 1, characterized in that, The number of sieves is at least one, and if there are multiple sieves, they are stacked together layer by layer in the vertical direction.

6. The high-efficiency mineral sieving instrument according to claim 1, characterized in that, The drive base includes a vertically arranged torsion spring, and the bottom of the funnel-shaped ore receiving hopper is provided with a cylindrical groove that matches the torsion spring.

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