CN105772384A - Screening spreader - Google Patents
Screening spreader Download PDFInfo
- Publication number
- CN105772384A CN105772384A CN201610271046.6A CN201610271046A CN105772384A CN 105772384 A CN105772384 A CN 105772384A CN 201610271046 A CN201610271046 A CN 201610271046A CN 105772384 A CN105772384 A CN 105772384A
- Authority
- CN
- China
- Prior art keywords
- screen
- screen axis
- grating
- axis
- buffering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
- B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4654—Corrugated Screening surfaces
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a screening spreader (1). A buffer spreading plate (4) is inclinedly arranged below a feeding port (5), buffer screen axles (8) and screen strip screen axles (9) form a screen surface (6), two ends of the screen axles are connected with a transmission bearing seat (24) and a speed reduction motor (21), a positive guide screw and a negative guide screw are arranged in each screen strip screen axle, mutually interlaced movable screen strips (13) and fixed screen strips (12) are arranged on the screen strip screen axle, two ends of the screen strip screen axle are provided with anti-blocking holes (16), a screw conveyer (20) is arranged just below the anti-blocking hole and used for conveying the slice-shaped coal to an unqualified-size coal discharge port (33). The screening spreader is used in the SiChuan TianHua thermal power plant, the screening efficiency is high, slice-shaped materials are reduced, the spreading is uniform, the impact resistance is strong, blocking phenomenon does not occur, the check and maintenance process is convenient, the installation space is small, the electric consumption amount is low, and the service life is long.
Description
Technical field
The present invention relates to the screening plant of a kind of thickness coal charge, be related specifically to the sub-sieve material distributing machine in coal, field, mine.
Background technology
The coal gangue particle of thermal power plant burning in circulating fluid bed boiler certain proportion particle diameter, in the coal charge of colliery, coal charge contains substantial amounts of qualified particle diameter and need not repeat to crush, it is thus desirable to screening machine is separated qualified particle diameter to alleviate crushing, more conform to boiler combustion curve.And in Coal Transportation System, whether the screening efficiency of screening machine, chute blockage situation, cloth be uniformly, maintenance changes the parameters such as accessory cycle and directly affect the combustion curve of boiler.Boiler combustion substantial amounts of tablet coal charge process there is certain impact.
Well-known, screening machine only has two kinds of modes both at home and abroad at present, and one is bar shaped screen slot, and another kind is sieve aperture.Well-known, sieve aperture efficiency is low, and sieve aperture easily blocks up, but its advantage is in that the screening dry material that moisture content is low, viscosity is low and uniform particle sizes are almost without tablet particle diameter.Well-known, the screening machine advantage of another kind of bar shaped screen slot is in that screening efficiency is slightly higher, less easily blocks up, but its shortcoming is to have a large amount of tablet to there is (set Sieving and casing and account for the 5-35% entering screening as 10mm, 8-10.mm particle diameter tablet) in discharging.So solving or slow down strip-type screen slotted screen to divide sheet material to become a whole industry difficult problem always.
Material particular diameter accounts for the 5-35% of whole ratio after being equal or slightly larger than the tablet squeezed entrance screening machine of screen slot.The sheet material that tablet is irregular shape such as 8mm is the narrowest while being 8mm, and that long be then about 20mm, and that such as coal charge tablet is narrow again is 10mm, and grow while being the irregularly shaped of 25-30mm.
This invention core is in that to solve an industry difficult problem: slow down the screening ratio 5-35% of as-fired coal tablet.
Particle diameter is equal or slightly larger than after the sheet material of screen slot is discharged from anti-blockage holes and drops to inside the helical feed being positioned below, promotion by conveying worm, not qualified particle diameter discharging opening come by this portion portion material, fall into, crusher in crushing, to qualified particle diameter, can effectively solve and slow down the existence of tablet.
Whether the screening efficiency of screening machine, chute blockage situation, cloth be uniform, will directly affect the benefit of follow-up disintegrating apparatus.
The benefit improving screening efficiency is: 1, reduce disintegrating machine mair motor power consumption；2, alleviated broken, more met combustion curve；3, the minimizing for the treatment of capacity can extend the service life of grinder hammerhead.
Chute blockage phenomenon is the homely food of Coal Conveying System of Power Plant, and particularly especially prominent when, coal charge poor fluidity big in coal moisture content weight, gangue amount, the compass screen surface conveying resolving screening machine is equal to nip off the root that chute blockage phenomenon occurs.
Cloth is uneven be also major part screening machine weakness, follow-up disintegrating machine is had an advantage that by uniform distribution: 1, disintegrating machine main rotor tup even wearing；2, alleviate main rotor to beat with one heart, extend the mair motor life-span；3, the adjustment of particle diameter it is more conducive to.
At present, what power plant's screening machine mainly adopted is vibrosieve, roto-siofter, intersection sieve, roller picker etc.；Vibrosieve shortcoming: exert oneself little, screening efficiency is low, frequent chute blockage；Roto-siofter shortcoming: exert oneself little, screen rate is low, frequent chute blockage, can not cloth；Intersect and sieve shortcoming: power of motor is big, blade wear is serious, impact resistance is poor, the time between overhauls(TBO) is short；Roller picker shortcoming: screening efficiency is low.
Such as the screening plant that denomination of invention is a kind of vibrating-type roller screen (CN102310041A), it includes screen box, roller type compass screen surface, vibrator, vibration damping support device and base, compass screen surface is connected to form by organizing roller bearing more and is added gear drive by vibrator vibration, compass screen surface angle 0-90 °, be exactly in fact sieve plate made into roller bearing be connected.This roller picker structure is complicated, and screen axis is solid screen axis, effectively screening only several screen slot, and screening efficiency is low；And power of motor is big, poor practicability.
And for example denomination of invention is that namely a kind of New type roller picker intersects the screening plant of sieve (CN101091950A), it includes screen box, driver plate, screen axis, decelerator, coal charge completes conveying and saturating sieve under the rotation of driver plate, this device driver plate put into operation after driver plate and blade wear serious and change difficulty；Feeding mouth front end impact resistance is poor；The screening of many particle diameters coal charge can not be realized.
Summary of the invention
The order ground of the present invention is in that to solve the deficiencies in the prior art, a kind of novel sub-sieve material distributing machine is provided, solve conventional screen subset bar shaped screen slot discharging have a large amount of tablet problem and solve that screening efficiency is low, undercapacity, can not the problems such as cloth, serious wear, impact resistance be poor, putty in compass screen surface putty, screen axis, maintenance difficulty, replacing accessory cycle are short.
The present invention is achieved through the following technical solutions: sub-sieve material distributing machine, it includes casing, buffering drapery panel, driving decelerating electric machine, buffering screen axis, grating screen axis, arc cutting plate, conveying worm, buffering drapery panel is obliquely installed the lower section in charging aperture, buffering screen axis and grating screen axis composition compass screen surface, screen axis is connected with the driveline of reducing motor；The two ends of buffering screen axis and grating screen axis are arranged on casing both sides respectively through bearing block；The anti-blockage holes of every grating screen axis two end is connected with conveying worm, and conveying worm promotes tablet coal charge extremely not qualified discharging opening.
It is provided with guide spiral in described grating screen axis, guide spiral is made up of forward conveyor screw and reverse conveyor screw, forward conveyor screw is fixedly mounted on the side within grating screen axis, reverse conveyor screw is fixedly mounted on the opposite side within grating screen axis, and the material in screen axis is derived to anti-blockage holes discharge by guide spiral.
Sub-sieve material distributing machine, it is characterized in that: it includes casing, buffering drapery panel, multiple reducing motor, a reducing motor drive many screen axis, buffering screen axis and grating screen axis composition compass screen surface, guide spiral it is provided with in grating screen axis, screen axis two end anti-blockage holes is arranged right below conveying worm, is connected with reducing motor output shaft respectively through bearing block, chain, sprocket wheel outside screen axis two terminal shell；Conveying worm driving section immediately below casing internal anti-blockage holes is connected with the reducing motor output shaft on buffering screen axis；
Being provided with guide spiral in described grating screen axis, guide spiral is made up of forward conveyor screw and reverse conveyor screw, and forward conveyor screw is fixedly mounted on the side within grating screen axis, and reverse conveyor screw is fixedly mounted on the opposite side within grating screen axis；
Described grating screen axis is made up of with fixing grating interlaced arrangement movable grating；
Described grating screen axis be respectively arranged at two ends with anti-blockage holes, be provided with arc cutting plate directly over anti-blockage holes, anti-blockage holes be arranged right below conveying worm.
Sub-sieve material distributing machine according to claim 1, it is characterised in that: anti-blockage holes is in casing grating screen axis two side, is provided with arc cutting plate directly over anti-blockage holes, anti-blockage holes be arranged right below conveying worm.
Conveying worm guide direction in sub-sieve material distributing machine according to claim 1 carries material direction consistent with compass screen surface, and after screening, thick particle diameter discharging opening is consistent with conveying worm particle diameter discharging opening.
Described screen axis is divided into buffering screen axis and grating screen axis.
Described compass screen surface is made up of with grating screen axis buffering screen axis, and compass screen surface angle is set to-15～75 °.
Described grating screen axis is made up of fixing grating, movable grating, pivot flange sheet, anti-blockage holes, power transmission shaft.
The described screen slot on grating screen axis is to be arranged, by fixing grating is interlaced with movable grating, the activity screen slot produced, and on grating screen axis, movable grating can be set to complete movable grating, it is possible to is set to the combination between piecemeal activity grating and fixing grating.
The described movable grating on grating screen axis is with fixing grating not limit for length is short, do not limit diameter, do not limit grating shape.
Described grating screen axis grating includes movable grating and fixing grating, and screen axis two ends are respectively arranged with anti-blockage holes.
Described buffering drapery panel is drawing and pulling type drapery panel, replaceable after wear-resisting.
Described buffering screen axis is made up of seamless steel pipe, and buffering screen axis is provided with screen slot and also can not set screen slot, such as with being provided with positive and negative guide spiral and anti-blockage holes in the buffering screen axis of screen slot.
Described sub-sieve material distributing machine casing is made up of upper and lower enclosure, and upper and lower enclosure Vertical Centre Line is that screen axis center is to hatching line.Butt-splitting machine shell is conducive to maintenance to change screen axis after opening.
Described compass screen surface is made up of with grating screen axis buffering screen axis exactly, and the order of screen axis is positioned at discharging opening side for buffering screen axis at charging aperture side grating screen axis.
Described screen axis power transmission shaft is arranged at screen axis two side, and screen axis side is driven bearing, and opposite side is actuating device, and actuating device is provided with chain, sprocket wheel, bearing and bearing block.
Described bracing frame is under the bearing block of outer two sides of casing, and bracing frame is connected with bearing block and casing.
Described conveying worm is securing member design for disassembly, all detachable after spiral wear.
Described grating screen axis includes grating, flange plate, power transmission shaft, anti-blockage holes, and the uniform through hole on flange plate of grating, the gap formed between grating and grating is screen slot.
Being provided with arc cutting plate between top and the inwall of casing at described buffering screen axis and grating screen axis two ends, arc cutting plate is positioned at anti-blockage holes upper end, and its Main Function prevents from entering anti-blockage holes more than screen slot material.
It is provided with positive and negative guide spiral in described sub-sieve material distributing machine screen axis and also can be set to positive and negative guide sheet.
Described buffering screen axis and grating screen axis length, diameter, revolution are all identical.
Described grating material is not limited to reinforcing bar, and grating shape is not limited to circle, square.
Described reducing motor actuating device can drive one or some screen axis according to duty requirements.
Described screen axis shape can be circle, polygon etc..
Described anti-blockage holes is in grating screen axis two side, and between drive flange sheet and pivot flange sheet, the well-regulated hole blocking the formation of several grating is anti-blockage holes, and anti-blockage holes shape is not limited to rectangle.It is also not necessarily limited to 1-30.
The described compass screen surface in sub-sieve material distributing machine can be all made up of buffering screen axis, or is all made up of grating screen axis, it is possible to is present in sub-sieve material distributing machine with grating screen axis mixing by buffering screen axis.
Described sub-sieve material distributing machine can sieve multiple particle diameter, it refers to by the grating quantity increasing and decreasing on grating screen axis thus changing the width size of screen slot and realizing, realizing multi-stage screening after can passing through the separation of the cutting plate below compass screen surface after different particle diameters occurs, the gap width of screen slot is gradually increased to off grade size discharging opening by charging aperture.
The gear of described coveyor drive is not limited to circular cone tooth and worm and gear.
Described spiral transferring machine is in below the anti-blockage holes of screen axis two side, and the pusher direction of rotation of conveyer is for promoting material toward cloth screen-dividing machine not qualified particle diameter port of export direction.The tablet material that anti-blockage holes falls down is fallen in spiral transferring machine spiral.
Described buffering drapery panel adopts wear resistant and impact resistant material, primarily serves the purpose of cloth, buffering.Buffering drapery panel is set to pullable replacing.
Described buffering screen axis can be made by seamless steel pipe, primarily serves the purpose of cloth, shock resistance, conveying, screening.
Described material is not limited to coal, Ore, industrial chemicals, grain etc..
Described sealing device is positioned at screen axis two end and side, casing junction two.
Described protective cover is rotatable parts protective cover, such as shaft joint protective cover, chain pitch wheel protective cover, protecting cover for transmission shaft.
Described maintenance observation port is: the maintenance observation port being provided with upper casing act as maintenance observation effect, and the maintenance observation port being located at lower casing act as observation particle diameter effect.
Described discharging opening is be located at discharging opening below compass screen surface and qualified particle diameter discharging opening, and the discharging opening being located at screen axis tail end is thick not qualified particle diameter discharging opening.
Described sieve compass screen surface rotation aspect is: rotate clockwise.That is: buffering screen axis sieves to grating screen axis, the conveying of not qualified particle diameter discharging opening direction.
Described hanger is positioned at upper casing, is mainly used in lifting, repair and maintenance.
Sub-sieve material distributing machine includes upper casing, lower casing, buffering drapery panel, charging aperture, compass screen surface, screen axis, buffering screen axis, grating screen axis, grating, screen slot, fixing grating, movable grating, forward conveyor screw, reverse conveyor screw, anti-blockage holes, pivot flange sheet, power transmission shaft, arc cutting plate, conveying worm, reducing motor, Gearing of Screw Transporter, bracing frame, bearing block, bearing, chain, sprocket wheel, circular cone tooth, sealing device, shaft joint, protective cover, maintenance observation port, not qualified particle diameter discharging opening, qualified particle diameter discharging opening, hanger.Coal charge is entered in body by cabinet top charging aperture, buffering drapery panel breaks belt feeder column coal charge, drop to the screening carrying out conveying-type on the compass screen surface being made up of some buffering screen axis and grating screen axis in oval column, under reducing motor drives, material completes compass screen surface cloth, shock resistance, conveying, screening function.
Every screen axis two ends are provided with power transmission shaft, sealing device, bearing block, sprocket wheel, chain, reducing motor drive chain to rotate thus reality is sieved and transfer function.When coal charge comes grating screen axis, the coal charge of qualified particle diameter is fallen in grating screen axis, and grating screen axis directly falls into corresponding qualified discharging opening at the centrifugal action of high-speed rotation；Because the screen slot on grating screen axis adds in process at high speed centrifugation with squeezing, portable screen is sewn on and is continually changing, thus solving high moisture content, viscous stifled property feed blocking screen slot problem.Particle diameter is equal or slightly larger than the sheet material of screen slot gap width when cannot discharge from activity screen slot, when this part of material is the positive and negative guide helical rotation by being located in screen axis, to screen axis two side, this part of material is pushed to anti-blockage holes and discharges.
Particle diameter is equal or slightly larger than after the sheet material of screen slot gap width is discharged from anti-blockage holes and has dropped to inside helical feed, promotion by conveying worm, not qualified particle diameter discharging opening come by this portion portion material, fall into, crusher in crushing, to qualified particle diameter, can effectively solve and slow down the existence of tablet.
Guide spiral in screen axis is divided into positive and negative two kinds of angles, guarantee that when screen axis rotates, coal charge is pushed to the anti-blockage holes at screen axis two ends to discharge by forward conveyor screw and reverse conveyor screw respectively, guide spiral also can be replaced by stock guide, stock guide forward, backstep welding are connected in screen axis, and function is identical with guide spiral.
Present invention solves the problem that
(1) not putty: compass screen surface is made up of screen axis, and every screen axis is connected with actuating device, and compass screen surface is equidirectional rotational conveyance, therefore compass screen surface carries not putty by force.Not putty in grating screen axis: fall in grating screen axis less than the qualified coal charge of screen slot, grating screen axis centrifugal force rotates and drops to below compass screen surface in qualified tapping channel by throwing away less than the coal charge of screen slot；Push to the anti-blockage holes at screen axis two ends when the coal charge being equal or slightly larger than screen slot is squeezed in grating screen axis by force by the positive and negative guide spiral set in grating screen axis or guide sheet to discharge, therefore not putty in grating screen axis.
(2) tablet: particle diameter is equal or slightly larger than after the sheet material of screen slot is discharged from anti-blockage holes and drops to inside the helical feed being positioned below, promotion by conveying worm, not qualified particle diameter discharging opening come by this portion portion tablet material, fall into, crusher in crushing, to qualified particle diameter, can effectively solve and slow down the existence of tablet.
(3) screening efficiency: the height of screening efficiency depends on the size (percent opening area) of screen slot area, one's duty sieve material distributing machine because of in grating screen axis not chute blockage material, screen slot is activity screen slot not putty therefore screening efficiency is high.
(4) buffer abrasive resistance: when first bulk coal charge is cushioning the enterprising row buffering of drapery panel, cloth after entering sub-sieve material distributing machine from charging aperture.Buffering drapery panel effectively slow down the impulsive force of lump material, material through slowing down impulsive force falls to dropping on buffering screen axis, the buffering screen axis impulsive force slowing down material again, lump coal is on buffering screen axis after grease it in, and buffered sieve punching is delivered to grating screen axis and carries out conveying-type green ball screening and distribution.
(5) cloth function: coal charge drop to buffering drapery panel on break column structure be first time cloth；From buffering drapery panel drop to buffering screen axis break again ellipsoidal structures be second time cloth；Being carried by the compass screen surface wave rotated is third time cloth, and the coal charge ulking thickness of the more uniform compass screen surface of cloth is thin, and the screening percentage of coal charge is high.
(6) multiple particle diameter operating mode: when sieving two or more particle diameter needed for operating mode, grating on changeable grating screen axis realizes the change in screen slot gap, immediately below screen axis group after screen slot changes, demarcation strip is set to form independent tapping channel, thus realizing the screening of multiple particle diameter.
(7) energy consumption of electrical machinery problem: sub-sieve material distributing machine is mainly made up of grating screen axis, grating screen axis and hollow shape, therefore gently；Therefore in transmission, it is set to one, motor drives many grating screen axis.
(8) screen axis problem in service life: the buffered drapery panel of material and buffering screen axis impulsive force grease it in after, it is belt conveyor principle that compass screen surface rotates, and in coal charge screening, cloth process, coal thing is to screen slot in free-falling, it does not have rub by force, so, screen axis wear-out life extends several times.
(9) device space size: one's duty sieve material distributing machine compass screen surface can be set to 0 ° of level and installs, and is greatly reduced setting height(from bottom) space so comparing with other vibration type screening machine.
(10) maintenance is changed conveniently: when needing replacing buffering drapery panel that the drapery panel of abrasion is then directly extracted out the buffering drapery panel more renewed, when needing the screen axis of replacing abrasion, upper casing is opened all screen axis all conveniently replaced.
Accompanying drawing explanation
Fig. 1 is the front view of sub-sieve material distributing machine of the present invention
Fig. 2 is the top view of sub-sieve material distributing machine of the present invention
Fig. 3 is the side view of sub-sieve material distributing machine of the present invention
Fig. 4 is the main sectional view of sub-sieve material distributing machine of the present invention
Fig. 5 is the sectional view of bowing of sub-sieve material distributing machine of the present invention
Fig. 6 is the sectional view 1 of sub-sieve material distributing machine of the present invention
Fig. 7 is the sectional view 2 of sub-sieve material distributing machine of the present invention
The front view that Fig. 8 is sub-sieve material distributing machine of the present invention cuts open conveying worm and arc cutting plate figure
Fig. 9 is sub-sieve material distributing machine grating screen axis schematic diagram of the present invention
nullIn figure，1-sub-sieve material distributing machine，2-upper casing，3-lower casing，4-cushions drapery panel，5-charging aperture，6-compass screen surface，7-screen axis，8-cushions screen axis，9-grating screen axis，10-grating，11-screen slot，12-fixes grating，13-activity grating，14-forward conveyor screw，The reverse conveyor screw of 15-，16-anti-blockage holes，17-pivot flange sheet，18-power transmission shaft，19-arc cutting plate，20-conveying worm，21-reducing motor，22-Gearing of Screw Transporter，23-bracing frame，24-bearing block，25-bearing，26-chain，27-sprocket wheel，28-circular cone tooth，29-sealing device，30-shaft joint，31-protective cover，32-overhauls observation port，The not qualified particle diameter discharging opening of 33-，The qualified particle diameter discharging opening of 34-，35-hanger.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described:
nullSuch as Fig. 1、Fig. 2、Fig. 3、Fig. 4、Fig. 5、Fig. 6、Fig. 7、Fig. 8、Shown in Fig. 9，Sub-sieve material distributing machine 1，It includes upper casing 2、Lower casing 3、Buffering drapery panel 4、Charging aperture 5、Compass screen surface 6、Screen axis 7、Buffering screen axis 8、Grating screen axis 9、Grating 10、Screen slot 11、Fixing grating 12、Movable grating 13、Forward conveyor screw 14、Reverse conveyor screw 15、Anti-blockage holes 16、Pivot flange sheet 17、Power transmission shaft 18、Arc cutting plate 19、Conveying worm 20、Reducing motor 21、Gearing of Screw Transporter 22、Bracing frame 23、Bearing block 24、Bearing 25、Chain 26、Sprocket wheel 27、Circular cone tooth 28、Sealing device 29、Shaft joint 30、Protective cover 31、Maintenance observation port 32、Not qualified particle diameter discharging opening 33、Qualified particle diameter discharging opening 34、Hanger 35，By above-mentioned 9 figure the structure understanding sub-sieve material distributing machine that can be detailed、Principle、Each number of components and effect.
Sub-sieve material distributing machine charging aperture 5 material is by three several screen axis screenings of driven by motor as Figure 1 and Figure 4, compass screen surface is horizontally disposed, sub-sieve material distributing machine is provided with by upper casing 2 and lower casing 3, every screen axis of sub-sieve material distributing machine is provided with sealing device 29, bearing block 24, bearing 25, bearing block are connected with bracing frame 23, also is provided with bracing frame below motor.Compass screen surface shown in Fig. 4 is cushioned screen axis 8 by two and forms with six roots of sensation grating screen axis 9, and two buffering screen axis are by the transmission of a reducing motor 21, and another two groups of grating screen axis are respectively by the transmission of two reducing motors 21, and every three grating screen axis 9 are one group.Screen axis is connected with conveying worm 20, and conveying worm is by Gearing of Screw Transporter 22 transmission of sub-sieve material distributing machine 1 rear end.
As Fig. 2, Fig. 5 show the top view of sub-sieve material distributing machine, can have a clear understanding of that charging inwall is provided with buffering drapery panel 4, buffering drapery panel is connected with level 2 buffering screen axis 8, be rotated by reducing motor 21 Tongfang and drive compass screen surface conveying, sieve qualified particle diameter material and fall down to qualified particle diameter passage 34.Sub-sieve distributing device casing two side is provided with actuating device, has reducing motor 21, bearing 25, bearing block 24, power transmission shaft 18, sealing device 29, chain 26, sprocket wheel 27, protective cover 31 respectively.Gearing of Screw Transporter 22, chain 26, circular cone tooth 28, protective cover 31, power transmission shaft 18.Upper casing 2 is provided with maintenance observation port 32.The compass screen surface of sub-sieve material distributing machine shown in Fig. 5 is by cushioning screen axis 8 and grating screen axis 9 forms, positive and negative guide spiral it is provided with in grating screen axis, grating screen axis 9 two end is provided with anti-blockage holes 16, anti-blockage holes 16 is arranged right below conveying worm 20, tablet material is pushed to not qualified particle diameter discharging opening 33 by conveying worm, enters crusher in crushing extremely qualified particle diameter.
As shown in Fig. 3, Fig. 6, Fig. 7, sub-sieve material distributing machine buffering drapery panel 4 width is consistent with compass screen surface 6 width, and buffering drapery panel is removable.The casing of sub-sieve material distributing machine shown in Fig. 3, Fig. 6 be externally provided with Gearing of Screw Transporter 22 it by chain 26, sprocket wheel 27, conical gear 28, bearing 25, bearing block 24, power transmission shaft 18, protective cover group 31 one-tenth.The anti-blockage holes 16 of the end of screen axis two shown in Fig. 7 is arranged right below two groups of conveying worms 20, is provided with two groups of arc cutting plates 19 directly over screen axis two end anti-blockage holes.
As shown in Figure 7, Figure 8 sub-sieve material distributing machine arc cutting plate 19, screen axis, conveying worm 20 position relationship, be provided with two groups of arc cutting plates 19 directly over screen axis two side anti-blockage holes 16, screen axis two side anti-blockage holes 16 is arranged right below two groups of conveying worms 20.
Grating screen axis 9 is made up of power transmission shaft 18, anti-blockage holes 16, fixing grating 12, movable grating 13, pivot flange sheet 17, positive and negative guide spiral as shown in Figure 9, forms screen slot 11 between fixing grating 12 and movable grating 13.
Sub-sieve material distributing machine screening as shown in Figure 1, Figure 2, Figure 4 shows, cloth ruuning situation can be observed constantly by maintenance observation port 32.
The operation principle process of present example is as follows:
If 2*600MW unit is example, two boilers burn 1000 tons of gangues per hour
Carrying out coal charge (gangue) is 1500t/h；Charging particle diameter 0-300mm；Material accounts for 75% less than 10mm coal grain, coal free surface moisture about 8%.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, coal charge 1500t/h falls from charging aperture 5 to drop to and breaks coal charge column structure buffering drapery panel 4；Coal charge falls to then through buffering drapery panel 4 breaks ellipsoidal structure on buffering screen axis 8 again, coal charge diffusion, screening, conveying；Coal charge is come and is carried out sinusoidal wave streaming conveying screening on the compass screen surface being made up of six roots of sensation grating screen axis 9, and coal charge is uniformly diffused into whole compass screen surface, opens in the uniform cloth of waterfall shape, complete cloth function when the bulk materials after final sizing is transported to not qualified particle diameter discharging opening 33.Particle diameter less than 10mm falls qualified particle diameter discharging opening 34 from the screen slot 11 of compass screen surface 10mm, when the material of 0-10mm falls, is extruded in grating screen axis 9, less than wide 8mm's and the screen axis centrifugal action that can be easily rotated of the length material less than 10mm get rid of to qualified particle diameter passage；More than wide 8-10mm and length about the tablet of 15-30mm then by the positive and negative guide spiral in grating screen axis 9 this part tablet is discharged from the anti-blockage holes 16 of two sides (this partly material account for the 5-35% of qualified particle diameter, the desirable circulating combustion of boiler is had certain nibs by this part sheet material), anti-blockage holes 16 is arranged right below conveying worm 20, the guide direction of conveying worm 20 is consistent with not qualified particle diameter discharging opening 33 after screening, and tablet and not qualified thick coal cinder enter boiler of feeding coal after crusher in crushing extremely qualified particle diameter.
Claims (3)
1. sub-sieve material distributing machine, it is characterized in that: it includes casing, buffering drapery panel (4), multiple reducing motor (21), a reducing motor drive many screen axis, buffering screen axis (8) and grating screen axis (9) composition compass screen surface (6), guide spiral it is provided with in grating screen axis, screen axis two end anti-blockage holes (16) is arranged right below conveying worm (20), is connected with reducing motor (21) output shaft respectively through bearing block (24), chain (26), sprocket wheel (27) outside screen axis two terminal shell；Conveying worm driving section immediately below casing internal anti-blockage holes is connected with the reducing motor output shaft in buffering screen axis (8)；
It is provided with guide spiral in described grating screen axis, guide spiral is made up of forward conveyor screw (14) and reverse conveyor screw (15), forward conveyor screw is fixedly mounted on the side that grating screen axis (9) is internal, and reverse conveyor screw is fixedly mounted on the opposite side that grating screen axis (9) is internal；
Described grating screen axis (9) is made up of with fixing grating (12) interlaced arrangement movable grating (13)；
Described grating screen axis (9) be respectively arranged at two ends with anti-blockage holes (16), be provided with arc cutting plate (19) directly over anti-blockage holes, anti-blockage holes be arranged right below conveying worm (20).
2. sub-sieve material distributing machine according to claim 1, it is characterised in that: anti-blockage holes (16) is in casing grating screen axis (9) two side, is provided with arc cutting plate (19) directly over anti-blockage holes, anti-blockage holes be arranged right below conveying worm (20).
3. conveying worm (20) the guide direction in sub-sieve material distributing machine according to claim 1 carries material direction consistent with compass screen surface (6), does not close particle diameter discharging opening (33) consistent with conveying worm (20) particle diameter discharging opening after screening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271046.6A CN105772384A (en) | 2016-04-27 | 2016-04-27 | Screening spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271046.6A CN105772384A (en) | 2016-04-27 | 2016-04-27 | Screening spreader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772384A true CN105772384A (en) | 2016-07-20 |
Family
ID=56399793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610271046.6A Pending CN105772384A (en) | 2016-04-27 | 2016-04-27 | Screening spreader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105772384A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733635A (en) * | 2017-01-08 | 2017-05-31 | 四川重盟电力设备制造有限公司 | Screening machine screen axis transverse direction drawing structure and its assembly and disassembly methods |
| CN107262354A (en) * | 2017-08-15 | 2017-10-20 | 青海洁神环境能源产业有限公司 | A kind of sorting equipment |
| CN109622366A (en) * | 2019-01-11 | 2019-04-16 | 北京昊辰投资担保有限公司 | Material separator and separation method |
| CN110433949A (en) * | 2018-05-04 | 2019-11-12 | 陕西未来能源化工有限公司 | A kind of coal screening device and its application method |
| CN112170157A (en) * | 2020-11-02 | 2021-01-05 | 四川重盟电力设备制造有限公司 | Non-blocking screening machine |
| CN112871650A (en) * | 2021-03-09 | 2021-06-01 | 日昌升建筑新材料设计研究院有限公司 | Visual shale shaker protection casing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985122A (en) * | 2010-11-16 | 2011-03-16 | 马琳 | Efficient screening distributor |
| CN201841116U (en) * | 2010-11-16 | 2011-05-25 | 马琳 | Sieving distributor |
| CN102247945A (en) * | 2011-06-04 | 2011-11-23 | 马琳 | Material distributing screening machine |
| WO2011143026A3 (en) * | 2010-05-14 | 2012-04-19 | Emerging Acquisitions, Llc | De-inking screen with air knife |
| CN204769479U (en) * | 2015-06-14 | 2015-11-18 | 马琳 | Sieve shaft type screening machine |
-
2016
- 2016-04-27 CN CN201610271046.6A patent/CN105772384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011143026A3 (en) * | 2010-05-14 | 2012-04-19 | Emerging Acquisitions, Llc | De-inking screen with air knife |
| CN101985122A (en) * | 2010-11-16 | 2011-03-16 | 马琳 | Efficient screening distributor |
| CN201841116U (en) * | 2010-11-16 | 2011-05-25 | 马琳 | Sieving distributor |
| CN102247945A (en) * | 2011-06-04 | 2011-11-23 | 马琳 | Material distributing screening machine |
| CN204769479U (en) * | 2015-06-14 | 2015-11-18 | 马琳 | Sieve shaft type screening machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733635A (en) * | 2017-01-08 | 2017-05-31 | 四川重盟电力设备制造有限公司 | Screening machine screen axis transverse direction drawing structure and its assembly and disassembly methods |
| CN107262354A (en) * | 2017-08-15 | 2017-10-20 | 青海洁神环境能源产业有限公司 | A kind of sorting equipment |
| CN110433949A (en) * | 2018-05-04 | 2019-11-12 | 陕西未来能源化工有限公司 | A kind of coal screening device and its application method |
| CN109622366A (en) * | 2019-01-11 | 2019-04-16 | 北京昊辰投资担保有限公司 | Material separator and separation method |
| CN112170157A (en) * | 2020-11-02 | 2021-01-05 | 四川重盟电力设备制造有限公司 | Non-blocking screening machine |
| CN112871650A (en) * | 2021-03-09 | 2021-06-01 | 日昌升建筑新材料设计研究院有限公司 | Visual shale shaker protection casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105772384A (en) | Screening spreader | |
| CN104722472A (en) | Coal classifying screen | |
| CN210279281U (en) | Conveying equipment for refractory material production raw materials | |
| CN103752369B (en) | A kind of mining difference three running roller pick breaker | |
| CN203725182U (en) | Mining differential three-roller tooth type crusher | |
| CN108144715B (en) | Rotatory broken impact coal crushing apparatus | |
| CN204769479U (en) | Sieve shaft type screening machine | |
| CN107469904A (en) | A kind of jaw crusher feeds intake buffer unit | |
| CN104607383B (en) | Coal classifying screen | |
| CN208944207U (en) | A kind of crusher | |
| CN208340788U (en) | Ore pulverizer is used in a kind of mining | |
| CN213376842U (en) | Ore crusher | |
| CN108262092B (en) | Novel high-efficient oil sand breaker | |
| CN106975538A (en) | Coal mine roadway conveys crushing system | |
| CN102989657A (en) | Filtering sieve shaft of sieving machine | |
| CN201168617Y (en) | Gear teeth type stage crusher | |
| CN104438048A (en) | Screening distributing device | |
| CN107088453B (en) | Screen broken machine | |
| CN201711185U (en) | Drum screen type ultrafine crusher | |
| CN210097855U (en) | Secondary crushing roller device for crusher | |
| CN202155213U (en) | Combined paired roll type crusher | |
| CN107876141A (en) | A kind of efficient oppositely rolling roller crusher | |
| CN206897612U (en) | A kind of broken lifting device | |
| CN208037582U (en) | A kind of mine rotary blade dispenser | |
| CN114345444B (en) | Convenient-to-use stone crushing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
|
| WD01 | Invention patent application deemed withdrawn after publication |