CN112170196A

CN112170196A - Powder vibration screening device for ore mining

Info

Publication number: CN112170196A
Application number: CN202011269801.XA
Authority: CN
Inventors: 张树文; 康虔; 张雅浏; 黄涛; 吴建勋; 吴雪莹; 朱忠华
Original assignee: Nanhua University
Current assignee: Nanhua University; University of South China
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-01-05

Abstract

The invention discloses a powder vibration screening device for ore mining, and particularly relates to the technical field of ore mining devices. The utility model provides a powder vibration screening device for ore mining, which comprises a housin, by being equipped with the feed inlet in the casing, first axis of rotation, screen cloth and sieve, the top of feed inlet is enclosed to have closed the dust screen, the feed inlet is equipped with the baffle, coaxial coupling has the motor in the first axis of rotation, be equipped with first belt on the output shaft of motor, first belt is equipped with the second axis of rotation, be equipped with first crank in the second axis of rotation, circumference equidistance distributes in the first axis of rotation has a plurality of division boards, sliding connection has the cleaning board in the casing between screen cloth and the sieve, the other end and the sieve sliding connection of cleaning board, still be equipped with the spring leaf on the cleaning board, still be equipped with first arch in the casing, it is connected. By adopting the technical scheme of the invention, the problems of complex structure and poor screening effect of the existing split screening device are solved, and the selection of the available ore powder is optimized.

Description

Powder vibration screening device for ore mining

Technical Field

The invention relates to the technical field of ore mining devices, in particular to a powder vibration screening device for ore mining.

Background

At present, powder shale shaker that the market is general often pours the material directly to the shale shaker on from the discharge gate of processing powder material device (such as reation kettle) during operation, direct screening. The material produces great impact force when empting, causes the impact to the screen cloth of powder shale shaker very easily, leads to the screen cloth life-span to shorten, improves use cost. And the material appears very big raise dust when getting into the screen cloth, causes the hidden danger to operating personnel's healthy, also causes great pollution to the environment, and because the material loss that the raise dust leads to directly leads to the material screening rate of recovery to descend, has also increased the screening cost. In addition, an accurate cross beam is needed to be made when the material is poured onto the screen, if the material is poured too much, the material overflows the vibrating screen, so that the material is wasted, if the material is poured too little, the pouring frequency is increased, the operation frequency is increased to a certain extent, and the labor intensity of operators is also increased.

In order to solve the above problems, chinese patent (patent publication No. CN104984903B) discloses a powder vibrating screen for ore mining, comprising a base, a cylinder device located above the base, a lower frame located above the cylinder device, an upper frame located above the lower frame, a feeding device located above the upper frame, a material pushing device located above the feeding device, a screen device located below the feeding device, a screening device located below the screen device, and a pushing device disposed on the screening device, wherein the base is provided with a first bracket, a second bracket located on the right side of the first bracket, a third bracket located on the right side of the second bracket, a first support pillar located below the third bracket, and a second support pillar located on the right side, the cylinder device comprises a first cylinder, a first push rod located above the first cylinder, a fourth bracket located on the left side of the first push rod, and a fifth bracket located on the right side of the first push rod, the lower frame body is provided with a first supporting rod positioned on the right side, a discharging frame positioned below the first supporting rod, a first inclined plate positioned inside the lower frame body, a closed block positioned on the left side of the first inclined plate, a second inclined plate positioned on the right side of the first inclined plate, a first filter plate positioned above the second inclined plate, a first bent rod positioned inside the lower frame body, a baffle positioned on the right side of the discharging frame and a material collecting box positioned below the baffle, the upper frame body is provided with a second bent rod, a third cross rod positioned on the right side of the second bent rod, a first connecting rod positioned on the right side and a first fixing frame positioned above, the feeding device comprises a feeding hopper, a collecting frame positioned below the feeding hopper and a second vertical rod positioned below the collecting frame, the material pushing device comprises a first motor, a rotating shaft positioned below the first motor, a spiral rod arranged on the rotating shaft, a third vertical rod positioned below the rotating shaft, a second fixing frame positioned on, the screen device comprises a screen, a first magnet and a first vibrator which are positioned below the screen, the screening device comprises a second filter plate, a third filter plate positioned above the second filter plate, a horizontal plate arranged on the second filter plate, a fourth filter plate positioned below the second filter plate, a second vibrator positioned above the fourth filter plate, a third inclined plate positioned below the fourth filter plate and a fourth inclined plate positioned below the third inclined plate, the pushing device comprises a second air cylinder, a second push rod positioned above the second air cylinder, a second magnet positioned above the second push rod, fixed blocks positioned on the periphery, a fixed frame positioned below, a second motor positioned below a fourth vertical rod positioned in the fixed frame and a support plate positioned below the second motor, the discharging frame is in an inclined shape and comprises an upper wall, a front wall and a rear wall, and the left end of the discharging frame is fixedly connected with the right surface of the lower frame body, the right surface of the lower frame body is provided with a second through hole, the left end of the discharging frame is aligned to the second through hole, the first supporting rod is I-shaped, one end of the first supporting rod is fixedly connected with the right surface of the lower frame body, the other end of the first supporting rod is fixedly connected with the upper surface of the discharging frame, the first supporting rod is provided with a second supporting rod which is bent, one end of the second supporting rod is fixedly connected with the first supporting rod, the other end of the second supporting rod is fixedly connected with the upper surface of the discharging frame, the first inclined plate is inclined from the upper left to the lower right, the left end of the first inclined plate is fixedly connected with the sealing block which is inclined from the upper left to the lower right, the left surface of the sealing block is slidably connected with the inner surface of the lower frame body, the upper end of the fourth bracket is fixedly connected with the lower surface of the first inclined plate, the upper surface of the first push rod is fixedly connected with the lower surface of the, the second inclined plate inclines from the upper left to the lower right, the left end of the second inclined plate is fixedly connected with the right end of the first inclined plate, the right end of the first inclined plate and the left end of the second inclined plate are accommodated in the second through hole, the upper end of the fifth support is fixedly connected with the lower surface of the second inclined plate, the upper surface of the discharging frame is fixedly connected with the second supporting column, the second inclined plate is accommodated in the discharging frame and is in sliding connection with the inner surface of the discharging frame, the lower surface of the second inclined plate is provided with a first vertical rod, the first vertical rod is vertically arranged, the upper surface of the first vertical rod is fixedly connected with the lower surface of the second inclined plate, the first filter plate is provided with a plurality of filter plates which are uniformly distributed on the first inclined plate and the second inclined plate, the first filter plate is vertical, the lower surface of the first filter plate is fixedly connected with the upper surfaces of the first inclined plate and the second inclined plate, the first bent rod is bent, the upper end of the first bent rod is fixedly, the lower end of the first bending rod is aligned to the first inclined plate, the baffle is in an inverted concave shape, one end of the baffle is fixedly connected with the upper surface of the discharging frame, the other end of the baffle is vertical and is blocked on the right side of the discharging frame, the baffle is provided with a first cross rod, the first cross rod is in a star-shaped cuboid shape, the first cross rod is horizontally placed, the left end of the first cross rod is fixedly connected with the right surface of the baffle, the cross section of the receiving box is in a concave shape, the receiving box is located below the baffle and is in contact with the right surface of the first vertical rod, the right surface of the first cross rod abuts against the inner surface of the receiving box, the receiving box is provided with a second cross rod, the second cross rod is in a cuboid shape, the second cross rod is horizontally placed, and the left surface of the second cross rod is fixedly connected with the right.

Although the scheme can realize the screening of the materials, the structure is complex and the screening effect is not good.

Disclosure of Invention

The invention aims to provide a powder vibration screening device for ore mining, which solves the problems of complex structure and poor screening effect of the existing split screening device.

In order to achieve the purpose, the technical scheme of the invention is as follows: a powder vibration screening device for ore mining comprises a shell, wherein a hopper-shaped feed inlet, a first rotating shaft, a screen and a screen plate are sequentially arranged in the shell from top to bottom, a dust screen is enclosed at the top of the feed inlet, an arc-shaped baffle is symmetrically arranged at the bottom of the feed inlet, the first rotating shaft is positioned in the circle center of the baffle, a motor positioned outside the shell is coaxially connected to the first rotating shaft, the motor is fixed on the shell, a first belt is arranged on an output shaft of the motor, a second rotating shaft penetrating through the shell is arranged at the other end of the first belt, a first crank positioned in the shell is arranged on the second rotating shaft, a plurality of partition plates matched with the baffle are equidistantly distributed in the circumferential direction on the first rotating shaft, the screen is positioned below the partition plates, and a cleaning plate is slidably connected in the shell between the screen and the screen plate, the other end and the sieve sliding connection of cleaning board, still be equipped with the spring leaf on the cleaning board, still be equipped with first arch in the casing, first arch and screen cloth all are located the movement track of spring leaf, still rotate between cleaning board and the first crank and be connected with first connecting rod.

The principle and the effect of the technical scheme are as follows: the motor is opened after the material gets into the casing from the feed inlet, can put into the casing with the help of division board and baffle in batches after the motor is opened and filter the material to efficiency and effect in order to do benefit to improve the screening. When the materials enter the shell, partial materials directly fall into the bottom of the shell through the screen and the sieve plate. After the motor is started, the motor can drive the second rotating shaft to rotate through the first belt, at the moment, the first crank, the first connecting rod and the cleaning plate form a crank-connecting rod mechanism, and the first crank drives the cleaning plate to reciprocate on the sieve plate, so that materials meeting the requirements on the sieve plate can be screened for the second time; in the process of cleaning the board motion, the spring leaf on cleaning the board still can promote the screen cloth to reciprocate to will pile up the material on the screen cloth and stir, the screening of the material of being convenient for. Simultaneously, after the spring pieces are contacted with the first bulges, the first bulges can enable the spring pieces to vibrate, so that materials on the screen can be vibrated, and the screening efficiency is improved.

Further, the sieve plate is connected with the shell in a sliding mode, a spring is connected between the sieve plate and the shell, a clamping groove is formed in the sieve plate and located on the motion track of the cleaning plate, and a second protrusion matched with the clamping groove is formed in the cleaning plate.

Through the arrangement, the sieve plate can reciprocate or vibrate by means of the second protrusion and the spring, so that the sieve plate is favorable for screening materials, and the efficiency of screening the materials is further improved.

Furthermore, two third rotating shafts positioned between the partition plate and the screen are arranged in the shell, a pair of rollers and gears meshed with each other are arranged on the two third rotating shafts, and a second belt is connected between any one of the third rotating shafts and an output shaft of the motor.

Through the arrangement, the materials which cannot pass through can be fed into the roller pair to be rolled when the spring piece pushes the screen to move, so that the materials can be further finely rolled, the passing rate of the materials is improved, the problem that the screening effect of the materials is influenced due to long-term accumulation of the materials is avoided, and the stability of the device is enhanced.

Furthermore, a blowing channel positioned below the pair rollers is further arranged in the shell, a gap is reserved between the blowing channel and the screen, and a blowing mechanism used for jetting gas to the pair rollers is further arranged in the blowing channel.

Furthermore, the blowing mechanism comprises a nozzle positioned above the screen, an air injection pipe connected with the nozzle and an inflator connected with the air injection pipe, a second connecting rod is rotatably connected to a push handle of the inflator, a second crank coated on a second rotating shaft is rotatably connected to the second connecting rod, and the second crank is positioned outside the shell.

Through the arrangement, the push handle of the inflator can be driven by the crank and the second connecting rod to blow the blowing channel continuously after the second rotating shaft rotates, so that materials which cannot pass through the screen mesh are blown between the pair of rollers to realize milling.

Compared with the prior art, the beneficial effect of this scheme:

1. the scheme has simple structure and simple and convenient operation, and can realize automatic screening;

2. the scheme improves the utilization rate of the motor and saves energy;

3. the scheme realizes equivalent screening, can improve the screening efficiency, and can regulate and control according to the actual production requirement.

Drawings

FIG. 1 is a front view of a vibratory screening apparatus for ore mining powder of the present invention;

FIG. 2 is a left side view of the powder vibration screening device for ore mining according to the present invention.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a shell 1, a feed inlet 2, a first rotating shaft 3, a screen 4, a screen plate 5, a dust screen 6, a baffle plate 7, a motor 8, a triangular support frame 9, a first belt 10, a second rotating shaft 11, a first crank 12, a separation plate 13, a cleaning plate 14, a pulley 15, a first spring 16, a spring piece 17, a first protrusion 18, a first connecting rod 19, a second spring 20, a storage box 21, a third rotating shaft 22, a pair roller 23, a second belt 24, a blowing channel 25, an air injection pipe 26, an inflator 27, a hose 28, a second crank 29 and a second connecting rod 30.

Examples

As shown in figures 1 and 2: the utility model provides a powder vibration screening device for ore mining, includes casing 1, is equipped with the feed inlet 2, first axis of rotation 3, screen cloth 4 and the sieve 5 of funnel shape from top to bottom in proper order in the casing 1, and the top of feed inlet 2 is enclosed and is closed dust screen 6, can avoid the raise dust and the material loss's of material screening in-process production the condition with the help of dust screen 6. The left and right sides integrated into one piece in the bottom of feed inlet 2 has convex baffle 7 that the symmetry set up, first axis of rotation 3 is located the centre of a circle department of baffle 7, first axis of rotation 3 rotates and connects on the inner wall of casing 1, the rear side coaxial coupling of first axis of rotation 3 has the motor 8 that is located the casing 1 outside, motor 8 adopts step motor 8, the output shaft of motor 8 passes casing 1, motor 8's bottom bolted connection has triangular supports frame 9, triangular supports frame 9 bolted connection has on casing 1. A first belt 10 is coated on an output shaft of the motor 8, a second rotating shaft 11 penetrating through the shell 1 is arranged at the lower end of the first belt 10, and a first crank 12 positioned in the shell 1 is coated on the second rotating shaft 11; a plurality of partition plates 13 matched with the baffles 7 are circumferentially and equidistantly distributed on the first rotating shaft 3, and the screen 4 is positioned below the partition plates 13. Two sweeping plates 14 are connected in the shell 1 between the screen 4 and the sieve plate 5 in a sliding manner, the two sweeping plates 14 are arranged on the left side and the right side in the shell 1, sliding grooves for the sweeping plates 14 to slide are formed in the left side wall and the right side wall of the shell 1, the sweeping plates 14 can be prevented from being separated from the side walls of the shell 1 by means of the sliding grooves, and the stability of the device is maintained; pulleys 15 are connected to the front side and the rear side of the upper end and the lower end of each sweeping board 14 in a rolling mode, a roller at the upper end of each sweeping board 14 is connected with a sliding groove in a sliding mode, a roller at the lower end of each sweeping board 14 is connected with the sieve plate 5 in a sliding mode, brush hair is adhered to each sweeping board 14 between the two pulleys 15 at the lower end of each sweeping board 14, a first spring 16 is connected between the upper end of each sweeping board 14 and the sliding groove, and the sweeping boards 14 can be conveniently reset by means of the first springs 16; the top of the lower end of each cleaning plate 14 is adhered with a spring piece 17, first protrusions 18 which are symmetrically arranged are adhered in the shell 1, the first protrusions 18 and the screen 4 are located on the motion track of the spring piece 17, a first connecting rod 19 is rotatably connected between each cleaning plate 14 and the first crank 12, the ends, close to each other, of the two first connecting rods 19 are rotatably connected to the upper end of the first crank 12 and are arranged in parallel, and the lower end of each first connecting rod 19 is rotatably connected with the lower end of the cleaning plate 14 and is located between the spring piece 17 and the first crank 12. Both sides all with casing 1 sliding connection around sieve 5, are connected with second spring 20 between the left and right sides of sieve 5 and the casing 1, and the symmetry is opened on sieve 5 has two draw-in grooves, and every draw-in groove all is located the movement track of cleaning board 14, and the lower extreme integrated into one piece of cleaning board 14 has the second arch with draw-in groove matched with, and the second arch is located between two pulleys 15. The bottom of the shell 1 is also connected with a storage box 21 in a sliding mode, a handle is adhered to the right side of the storage box 21, and a discharge hole matched with the storage box 21 in size is formed in the lower right side of the shell 1.

Still be connected with in the casing 1 and be located two third axis of rotation 22 between division board 13 and the screen cloth 4, the cladding has a pair of matched with pair roller 23 and a pair of intermeshing's gear on two third axis of rotation 22, and pair roller 23 is located the screen cloth 4 center directly over, and two gears all cladding are outside the front side of third axis of rotation 22 and are located casing 1, are connected with the second belt 24 that is located between first belt 10 and the casing 1 between the output shaft of left third axis of rotation 22 and motor 8. A blowing channel 25 is further arranged on the shell 1 between the pair of rollers 23 and the screen 4, gaps are respectively reserved between the blowing channel 25 and the screen 4 and between the blowing channel 25 and the pair of rollers 23, and a blowing mechanism for spraying gas to the pair of rollers 23 is further arranged in the blowing channel 25. The blowing mechanism comprises a nozzle positioned above the screen 4, an air injection pipe 26 connected with the nozzle and an inflator 27 connected with the air injection pipe 26, the nozzle is in an L shape, the rear end of the air injection pipe 26 penetrates through the shell 1, a hose 28 is connected between the air injection pipe 26 and the inflator 27, the bottom of the inflator 27 is in bolted connection with a support plate, the support plate is welded outside the shell 1, a second connecting rod 30 is rotatably connected to a push handle of the inflator 27, the upper end of the second connecting rod 30 is rotatably connected with a second crank 29 wrapped on the second rotating shaft 11, and the second crank 29 is positioned outside the shell 1.

The working process of the scheme is as follows: after materials enter the shell 1 from the feeding hole 2, the motor 8 is started, and the motor 8 can drive the first rotating shaft 3 to rotate by a fixed angle after being started, so that the materials are put into the shell 1 in batches by virtue of the partition plates 13 and the baffle plates 7 for screening, the condition that the materials are directly poured into the shell 1 in a large amount to generate huge impact force on the screen 4 and the shell 1 is avoided, and the service life of the device is prolonged; meanwhile, the batch feeding of the materials is beneficial to improving the screening efficiency and effect.

After the material enters the interior of the shell 1 through the partition plate 13, part of the material flow directly passes through the screen 4 and the sieve plate 5 and falls into the storage tank 21 of the shell 1. After motor 8 opens, motor 8 accessible first belt 10 drives second axis of rotation 11 and rotates, first crank 12 this moment, first connecting rod 19 and cleaning board 14 have constituted crank link mechanism, first crank 12 then drives cleaning board 14 reciprocating motion on sieve 5, can carry out the secondary screening to the material that meets the requirements on sieve 5 with the help of the brush hair, can push the bin 21 with the material of jam near the sieve mesh or release the sieve mesh simultaneously, the condition of sieve mesh jam on the sieve 5 has been avoided. In the moving process of the cleaning plate 14, the spring piece 17 on the cleaning plate 14 can also push the screen 4 to move up and down on the screen 4, so that the materials accumulated on the screen 4 are stirred, and the materials are conveniently screened; simultaneously after spring leaf 17 and the contact of first arch 18 and second arch and draw-in groove looks block, first arch 18 can make spring leaf 17 take place the vibration, the quick back-and-forth movement of second arch drive sieve 5 to can just vibrate the material on the screen cloth 4, improved the efficiency of screening.

After the motor 8 starts, the output shaft of the motor 8 can drive the third rotating shaft 22 to rotate by means of the second belt 24, the third rotating shaft 22 can continuously spray air to the spraying channel 25 by means of the second crank 29 after rotating, the second connecting rod 30, the inflator 27, the hose 28 and the spraying pipe 26, so that the materials stacked on the screen 4 can be blown into the space between the pair rollers 23, the third rotating shaft 22 can drive the pair rollers 23 to rotate oppositely by means of two meshed gears to form rolling compaction, the materials can be further refined, the screening rate of the materials is convenient to improve, and meanwhile, the condition that the screening efficiency is reduced due to the fact that the materials which cannot pass through are stacked in the center of the screen 4 for a long time is avoided.

The foregoing are merely examples of the present invention and common general knowledge of known specific structures and/or features of the schemes has not been described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a powder vibration screening device for ore mining which characterized in that: comprises a shell, a funnel-shaped feed inlet, a first rotating shaft, a screen and a screen plate are sequentially arranged in the shell from top to bottom, a dustproof net is enclosed at the top of the feed inlet, a circular arc-shaped baffle is symmetrically arranged at the bottom of the feed inlet, the first rotating shaft is positioned at the circle center of the baffle, a motor positioned outside the shell is coaxially connected to the first rotating shaft, the motor is fixed on the shell, a first belt is arranged on an output shaft of the motor, a second rotating shaft penetrating through the shell is arranged at the other end of the first belt, a first crank positioned in the shell is arranged on the second rotating shaft, a plurality of partition plates matched with the baffle are equidistantly distributed in the circumferential direction on the first rotating shaft, the screen is positioned below the partition plates, a cleaning plate is slidably connected in the shell between the screen and the screen plate, and the other end of the cleaning plate is, the cleaning plate is further provided with a spring piece, a first bulge is further arranged in the shell, the first bulge and the screen are both located on the motion track of the spring piece, and a first connecting rod is further rotatably connected between the cleaning plate and the first crank.

2. The ore mining powder vibratory screening device of claim 1, wherein: the screen plate is connected with the shell in a sliding mode, a spring is connected between the screen plate and the shell, a clamping groove is formed in the screen plate and located on the motion track of the cleaning plate, and a second protrusion matched with the clamping groove is formed in the cleaning plate.

3. The ore mining powder vibratory screening device of claim 1, wherein: and two third rotating shafts positioned between the partition plate and the screen are further arranged in the shell, the two third rotating shafts are provided with a pair of rollers and gears meshed with each other, and a second belt is connected between any one of the third rotating shafts and an output shaft of the motor.

4. The ore mining powder vibratory screening device of claim 3, wherein: the shell is also internally provided with a blowing channel positioned below the pair rollers, a gap is reserved between the blowing channel and the screen, and the blowing channel is also internally provided with a blowing mechanism used for jetting gas to the pair rollers.

5. The ore mining powder vibratory screening device of claim 4, wherein: the blowing mechanism comprises a nozzle positioned above the screen, an air injection pipe connected with the nozzle and an inflator connected with the air injection pipe, a second connecting rod is rotatably connected to a push handle of the inflator, a second crank coated on a second rotating shaft is rotatably connected to the second connecting rod, and the second crank is positioned outside the shell.