CN101947481A - Selective crusher for underground use - Google Patents
Selective crusher for underground use Download PDFInfo
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- CN101947481A CN101947481A CN 201010516217 CN201010516217A CN101947481A CN 101947481 A CN101947481 A CN 101947481A CN 201010516217 CN201010516217 CN 201010516217 CN 201010516217 A CN201010516217 A CN 201010516217A CN 101947481 A CN101947481 A CN 101947481A
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Abstract
The invention relates to a selective crusher for underground use, which comprises a supporting stand, a supporting roller mechanism and a revolving drum body, wherein the supporting roller mechanism is arranged on the supporting stand, and the revolving drum body is horizontally installed on the supporting roller mechanism through a rolling ring which is arranged around the drum body and is matched with a supporting roller in the supporting roller mechanism; the inner cavity of the roller is provided with a pre-screening section, a pushing and screening section, a crushing and screening section and a discharge section sequentially backwards from the feed end, wherein a pre-screening section discharge opening is arranged below the pre-screening section, and a discharge chute is arranged below the crushing and screening section; a center shaft which is coaxial with the roller and is driven by a power source to rotate is installed in the roller, a beater plate is arranged on the shaft body of the center shaft at the section matched with the pre-screening section, a rotor in the shape of an oblique tooth is arranged on the shaft body of the center shaft at the section matched with the crushing and screening section, and a spiral discharge auger is arranged on the shaft body of the center shaft at the section matched with the discharge section; and a plurality of axially arranged lifting plates and nail plates are installed on the inner wall of the screening drum of the crushing and screening section at intervals.
Description
Technical field
The present invention relates to a kind of separatory down-hole of bastard coal bradford breaker that is applicable to run-of-mine coal (ROM coal) behind the underground mining.
Background technology
In the coal mining process, produce foreign material such as spoil, ironware inevitably, in recent years, development along with coal-mining technique, particularly combine adopt, the utilization of Lian Cai and caving coal technology, in the coal mining process, sneak into a large amount of roof and floors and dirt band, make the ature of coal variation, caused immense pressure and harm for coal dressing of coal by washing system, the lifting transport power of mine is also greatly consumed and is wasted, and more because the direct gug of run-of-mine coal (ROM coal), makes ground spoil amount constantly increase and has formed a large amount of " hillock ".Not only take a large amount of arable lands, and cause problems such as serious environmental pollution, surface collapse.
For coal production,, alleviate ground coal washing pressure in order to reduce the environmental hazard of hillock, promote conevying efficiency, in the down-hole raw coal is carried out the discharge refuse removal of impurities and handles, realize that down-hole coal, cash separate, make spoil not gug be that real coal is cleanly produced, the green only way that produces.But use ripe coal, cash separation equipment at present on the ground, be subjected to the influence of conditions down-hole and environment, be not suitable for using in the down-hole.Therefore must propose coal, cash separation processes under the new suitable coal mine in conjunction with down-hole industrial and mineral reality, develop underground separation equipment safe and reliable, that sorting capability is big, service life is long.
Form as can be known by the research run-of-mine coal (ROM coal), run-of-mine coal (ROM coal) is made up of coal, dirt band stone, rock, mineral, foreign material etc., and the difference in hardness of different material is very big, therefore can consider to utilize the difference of the mechanical property of different component in the run-of-mine coal (ROM coal) that run-of-mine coal (ROM coal) is carried out the selectivity sorting.
The selective crushing sorting is that mixed material is applied suitable active force, make the bigger rock of hardness, the not broken or less fragmentation of material, and make the less rock of hardness, mineral broken fully or broken substantially, and utilize rock, mineral strength difference, reach the purpose of strengthening broken and sorting.Have the advantages that according to rock forming mineral compression strength is big, tensile strength is little, to its fragmentation, can make fragmentation more effective with appropriate methods.For example: should adopt the cooperation that fractures to impact broken for hard material; For the such brittle material of coal, then to adopt the splitting fragmentation comparatively suitable.
According to the strength difference of coal in the run-of-mine coal (ROM coal) and spoil, foreign material carry out selective crushing realize down-hole run-of-mine coal (ROM coal) discharge refuse removal of impurities be one very effectively run-of-mine coal (ROM coal) handle approach, can realize that spoil discharges the not purpose of gug on the spot.But up to the present, also there is not selective crushing equipment ripe, that be applicable to down-hole run-of-mine coal (ROM coal) discharge refuse.
On February 23rd, 1994, State Patent Office announced the patent of a kind of drum-type down-hole with bradford breaker, and its patent No. is ZL 93228113.3.This invention is to be used for raw coal primary election and lump coal separation, steel, scum fragmentation, have the drum-type down-hole bradford breaker that hits the part rotor, form by rotating part, dust cover and discharging portion, waste material discharge portion, basic framework and carrying roller portion, rotor drive division, drum driven portion etc.Its principal character is: rotating part is by cylinder and places the rotor that hits part that has of cylinder inside to combine, cylinder and rotor drive in the same way rotation respectively, and fragmentation, the screening of material are separated by cylinder with foreign matter once finish, and the finished product epigranular, cross and pulverize for a short time, energy consumption is low.
The advantage of this invention is that its cylinder is built-in to have the rotor that hits part, and cylinder and rotor drive rotation in the same way respectively, can will enter the material fragmentation of cylinder effectively, realizes broken, screening and isolation integral.
But also there is the part defective in this invention: the first, and power is imported into by an end, and chain drive system, body are subjected to moment of torsion big, and noise is big, and hinge wheel is reinforced relatively difficulty; Secondly, axis and level did not have angle when body was installed, and were unfavorable for the propelling of spoil or foreign material, and machine does not have bigger axial force, Gu the unit failure of machine is many; The 3rd, discharge device competitive list first-class.
Simultaneously, this invention lacks considering of down-hole industrial and mineral, and improper down-hole run-of-mine coal (ROM coal) discharge refuse is used.
Summary of the invention
Purpose of the present invention provides the more rational novel down-hole of a kind of structure bradford breaker at existing weak point in the above-mentioned prior art just.This disintegrating machine rationally determines to impose the crushing force of material according to the broken physical characteristic of down-hole run-of-mine coal (ROM coal), realizes selectable broken material, and reduces crossing of material and pulverize, and reaches the even-grained requirement of finished product.
Purpose of the present invention can realize by following technical measures:
The rolling ring level that down-hole of the present invention comprises frames, is arranged on backing roll wheel mechanism on the frames, matches by the support running roller with in the backing roll wheel mechanism around its cylindrical shell setting with bradford breaker is installed in the rotating cylinder on the backing roll wheel mechanism; Described rotating cylinder comprises that cylinder and ring wrap in the outer dust cover of cylinder; Described drum cavity by feed end backward successively segmentation be set to pre-screening section, advance screening section, crushing and screening section, discharge zone, below pre-screening section, be provided with pre-screening section discharge gate, below the crushing and screening section, be provided with discharge chute; In cylinder, central shaft by its rotation of drive power source is installed in mode with the cylinder coaxial line, be provided with beater plate with the central shaft axis body of the pre-screening section section of matching, be provided with helical teeth shape rotor with the central shaft axis body section of the crushing and screening section section of matching, be provided with the discharge with endless screw auger with the central shaft axis body section of the discharge zone section of matching; The barrel of described pre-screening section and crushing and screening section is the screen drum structure, and the aperture of its sieve aperture is 30-150mm, and the riser of a plurality of axial settings is installed on the inboard wall of riddle drum of crushing and screening section at interval and the nail-plate that some splitting splittings are followed closely is installed; The riser of a plurality of axial settings is installed in uniform mode on described propelling screening section inwall.
Riser described in the present invention and nail-plate are all axially to become 3 °-15 ° angle setting with roller tube, and shape is arranged in the shape of a spiral, and adjustable angle, and its yawing moment is consistent with the rotation direction of cylinder.
The cross section of broken splitting nail is pyramid structure described in the present invention, crest line from the contact-making surface of break broken nail and nail-plate along pyramid evenly is provided with four ribs until the finger top obliquely, article four, ribs is in the roof intersection of nail, nail length is 70---400mm, the axial spacing of the broken nail of splitting is sparse gradually from the feeding mouth to the discharging opening, feeding end nail spacing is consistent with slot size, and discharge end nail spacing is 2-3 times of sieve aperture spacing.
The shape of helical teeth described in the present invention rotor, beater plate and discharge with endless screw auger are installed in the central shaft corresponding position by axle sleeve 36 respectively, and combine with central shaft by the key ways of connecting; 4 every group of described beater plates, 90 ° at interval, it is staggered that two adjacent groups becomes, and stagger angle is 45 °.
Dust cover described in the present invention combines with frames, is provided with dust removing tube 15 at the dust cover top, and dust removing tube 15 links to each other with the deduster of outside; Lower nozzle place at dust removing tube is provided with the clearing apparatus that is made of brush sweeper 33.
The wheel mechanism of backing roll described in the present invention comprises along the frames length direction arranges two groups of backing roll wheels of being made up of active support wheel and driven support wheel respectively that are provided with, active support wheel in every group of backing roll wheels and driven support wheel combine with respective support base on being fixedly mounted on frames by the bearing diagonal seat of relative tilt setting respectively, and be positioned at be provided with in the coaxial line mode two of the frames homonymy initiatively support wheels combine with driving mechanism by power transmission shaft; The circular inner groovy structure of the wheel rim section configuration of described active support wheel and driven support wheel for matching with the rolling ring section configuration; And two groups of backing roll wheels are asymmetric layout, and wherein feeding end supports running roller spacing δ
1Make cylinder feeding flow path direction produce certain inclination angle less than this structure of discharge end running roller spacing δ 2(, thereby be convenient to material gravity flow discharge), wherein be provided with the governor motion that is used for spacing between one group of support running roller; Described frames below is equipped with and is used to the slip rail wheel of realizing that complete machine moves.
Advance the cross section of the screen drum of screening section and crushing and screening section to be polygonized structure described in the present invention.
Clearing apparatus described in the present invention adopts the servo-actuated brush unit, also can adopt the drive-type brush unit; Advance screening section and crushing and screening section cross section can be designed to the dodecagon structure---can be designed to dodecahedron; The number of broken riser is 0.5 times of described polyhedron limit number; Advance screening section and crushing and screening section polyhedron can adopt the strip sieve plate to be welded, in conjunction with the place, limit nail-plate is being installed, and is using screw bolt reinforcing.
Equipment of the present invention is to utilize in the run-of-mine coal (ROM coal) coal different with the hardness of spoil, foreign material, falls under certain height and breaks into pieces, and coal is easy to fragmentation and is sized out, and spoil is difficult for broken and is discharged from, and foreign material such as wood, ironware all are discharged from simultaneously.So this use is novel to be made up of rotating cylinder, dust cover, discharge chute, clearing apparatus, bearing diagonal seat, bearing block, drive, runway, drum drive, rotor drive etc.
When the present invention worked, material was fed by an end of screen drum, and material rises to peak by the riser of screen drum inboard with coal in the tube, left the back enters the strike part from the top of rotor tow-away zone.For soft material, epitrochanterian strike part imposes impact, makes it quicken that the back impinges upon with bigger speed on the inwall of cylinder and broken; For rigid material, epitrochanterian strike imposes effect such as impact, roll, and it is broken that material is forced.
Because gravity and action of centrifugal force, material drop into the splitting fragmentation of riser below and nail on.Because the slabbing action of spike, it is broken that material is continued, and especially bulk materials breaks.Fully after the fragmentation, along under the acting in conjunction of screen drum inclination direction partical gravity, material travels forward along screen drum at the screw action power of riser and material self.Material repeats to promote-fall in screen drum-process of fragmentation-screening, through sieving actoion, make granularity see through compass screen surface and separate with bulk spoil, metal sundries etc. less than the coal cinder of sieve aperture, coal cinder from the down-hole coal outlet with the lower end of bradford breaker discharge.Bulk spoil or metal sundries etc. are discharged through marker impeller or discharge with endless screw auger from the exhaust end of screen drum.
Material has sufficient screening process when returning cylinder bottom with cylinder.Fine is through cylinder eye screening, and the discharge chute by the dust cover bottom is discharged on the discharging belt, discharges unimpededly in order to guarantee screening, and the pass design of mesh has clearing function, is difficult for stopping up.Material once can be finished fragmentation and screening by cylinder like this, and foreign matter is discharged through the cylinder discharging opening, and collected by the waste material discharge section owing to there are not enough crushing forces can not be broken.
Beneficial effect of the present invention is as follows:
1, wear-resistant, material size big (≤300mm), help simplifying classification;
2, because rotary screen finishes the separating once of fragmentation, screening and foreign matter of material with the combination that band hits the rotor of part;
3, by changing the rotating speed and the residing position of cylinder of rotor, reach the broken requirement of different material;
4, since cylinder screening rapidly fully, the finished product epigranular of material is crossed and is pulverized extremely lowly, for soft materials such as raw coal, its disposal ability is big and energy consumption is lower;
5, can change the gradient of cylinder by regulating tubular axis and the size of the angle of horizontal plane, thereby the stressed size and the direction of motion of change material are improved screening effect;
6, the method for operation is simple, is easy to processing and manufacturing, when load is excessive, initiatively support wheel and driven support wheel, can skid, realize protection automatically;
7, the broken nail of splitting is sparse gradually from the feed end to the exhaust end on the inner wall of rotary drum, and feed end nail spacing is consistent with slot size, and discharge end nail spacing is 2-3 times of sieve aperture spacing.Can guarantee like this can access sufficient screening fragmentation when material is initial, material is discharged rapidly in the discharge stage.
8, after material is raised plate and rises to certain altitude, rely on gravity fall to make its fragmentation, reduce the energy consumption when broken, energy savings;
9, by adding the broken nail of splitting, the combination that under the splitting fragmentation, makes coal and spoil more legibility from, increase work efficiency;
10, realize that by the slip rail wheel of bottom complete machine moves, thereby freely adjust machine location, be particluarly suitable for the down-hole and use.
Description of drawings
Fig. 1 is a contour structures schematic diagram of the present invention.
Fig. 2 is the structure chart of structure of the present invention.
Fig. 3 is the cross-sectional figure of Fig. 2.
The structural representation that Fig. 4 progressively increases from the feed end to the discharge end for the beater plate radius of gyration among the present invention.
Fig. 5 is a rotor structure schematic diagram of the present invention.
Fig. 6 is a crushing and screening segment structure schematic diagram (polygonized structure).
Fig. 7 is a crushing and screening segment structure schematic diagram (circle).
Fig. 8 is broken nail of splitting and nail-plate perspective view.
Fig. 9 is the rearview of Fig. 8.
Figure 10 is the sectional side elevation of Fig. 8.
The structural representation of Figure 11 discharge with endless screw auger section.
Sequence number among the figure:
The pre-screening section 3-of 1-rotating cylinder 2-advances the initiatively broken nail of the spoke-like A-frame 21-of support wheel 17-driven support wheel 18-crossbeam 19-rotor 20-bearing diagonal seat 22-base for supporting 23-supporting bracket 24-slip rail wheel 25-drive motors 26-shaft coupling 27-decelerator 28-pre-screening section discharge gate 29-splitting 30-nail-plate 31-plane cylinder sieve plate 32-fastening bolt 33-clearing apparatus 34-discharge with endless screw auger 35-beater plate 36-axle sleeve section 37-sieve aperture 38-central shaft of screening section 4-feed end 5-charging aperture 6-discharge chute 7-exhaust end 8-power transmission shaft 9-crushing and screening section 10-cylinder 11-curved surface cylinder sieve plate 12-rolling ring 13-riser 14-dust cover 15-dust removing tube 16-.
The specific embodiment
The present invention is further described below with reference to embodiment (accompanying drawing):
As Fig. 1, Fig. 2, shown in Figure 3, rolling ring 12 levels that down-hole of the present invention comprises frames 23, is arranged on backing roll wheel mechanism on the frames, matches by the support running roller with in the backing roll wheel mechanism around its cylindrical shell setting with bradford breaker are installed in the rotating cylinder 1 on the backing roll wheel mechanism; Described rotating cylinder 1 comprises that cylinder 10 and ring wrap in the outer dust cover 14 of cylinder; Described cylinder 10 inner chambers by feed end 4 backward successively segmentation be set to pre-screening section 2, advance screening section 3, crushing and screening section 9, discharge zone 7, below pre-screening section 2, be provided with pre-screening section discharge gate 28, below crushing and screening section 9, be provided with discharge chute 6; In cylinder 10, central shaft 38 by its rotation of drive power source is installed in mode with the cylinder coaxial line, be provided with beater plate 35 (referring to Fig. 4) with the central shaft axis body of pre-screening section 2 sections of matching, be provided with helical teeth shape rotor 19(referring to Fig. 5,6 with the central shaft axis body section of crushing and screening section 9 sections of matching), be provided with discharge with endless screw auger 34(referring to Figure 11 with the central shaft axis body section of discharge zone 7 sections of matching); The barrel of described pre-screening section 2 and crushing and screening section 9 is the screen drum structure, the aperture of its sieve aperture is 30-150mm, and the riser 13 and the nail-plate 30 that some splitting splittings nails 29 are installed of a plurality of axial settings are installed on the inboard wall of riddle drum of crushing and screening section 9 at interval; On described propelling screening section 3 inwalls, the riser 13(of a plurality of axial settings is installed referring to Fig. 6) in uniform mode; Described riser 13 and nail-plate 30 are all axially to become 3 °-15 ° angle setting with roller tube, and shape is arranged in the shape of a spiral, and adjustable angle, and its yawing moment is consistent with the rotation direction of cylinder 10.
Shown in Fig. 8,9,10, the cross section of broken splitting nail 29 is pyramid structure described in the present invention, crest line from the contact-making surface of break broken nail 29 and nail-plate 30 along pyramid evenly is provided with four ribs until the finger top obliquely, article four, ribs is in the roof intersection of nail, nail length is 70---400mm, the axial spacing of the broken nail 29 of splitting is sparse gradually from the feeding mouth to the discharging opening, and feeding end nail spacing is consistent with slot size, and discharge end nail spacing is 2-3 times of sieve aperture spacing.
Shown in Fig. 4,5,11, the shape of helical teeth described in the present invention rotor 19, beater plate 35 and discharge with endless screw auger 34 are installed in central shaft 38 corresponding positions by axle sleeve 36 respectively, and combine with central shaft 38 by the key ways of connecting; 35 every groups 4 of described beater plates, 90 ° at interval, it is staggered that two adjacent groups becomes, and stagger angle is 45 °.
Dust cover described in the present invention 14 combines with frames 23, is provided with dust removing tube 15 at dust cover 14 tops, and dust removing tube 15 links to each other with the deduster of outside; Lower nozzle place at dust removing tube is provided with the clearing apparatus that is made of brush sweeper 33.
The wheel mechanism of backing roll described in the present invention comprises along frames 23 length directions arranges two groups of backing roll wheels of being made up of active support wheel 16 and driven support wheel 17 respectively that are provided with, active support wheel 16 in every group of backing roll wheels and driven support wheel 17 combine with respective support base 22 on being fixedly mounted on frames 23 by the bearing diagonal seat 21 of relative tilt setting respectively, and be positioned at be provided with in the coaxial line mode two of frames 23 homonymies initiatively support wheels 16 combine with driving mechanism by power transmission shaft 8; The circular inner groovy structure of the wheel rim section configuration of described active support wheel 16 and driven support wheel 17 for matching with rolling ring 12 section configurations; And two groups of backing roll wheels are asymmetric layout, and wherein feeding end supports running roller spacing δ
1Make cylinder feeding flow path direction produce certain inclination angle less than this structure of discharge end running roller spacing δ 2(, thereby be convenient to material gravity flow discharge), be outside equipped with wheel cover at described active support wheel 16 and driven support wheel 17, wherein be provided with the screw rod governor motion that is used for spacing between one group of support running roller, can make this group support the pitch smaller between running roller (initiatively support wheel 16 and driven support wheel 17) or become big, thereby make the angle increase of tubular axis and horizontal plane or dwindle; The slip rail wheel 24 that is used to realize that complete machine moves is equipped with in described frames 23 belows.
Advance the cross section of the screen drum of screening section 3 and crushing and screening section 9 to be polygonized structure described in the present invention.
More specifically say: rolling ring described in the present invention 12 is integral cast steel spares, circumference along rolling ring 12, alternately arrange with channel-section steel combination beam and angle steel combination beam and riveted joint forms the crossbeam 18 of vertical structure every 30 °, constituted cage modle cylinder framework with the annular end frame of feed end 4, exhaust end 7; Along cage modle cylinder framework axially, it is divided into several equal portions, four radial A-frames 20 are installed in that the inner chamber of cage modle tubular framework is equidistant, in order to centre of support axle 38 and cylinder 10 rotation in the same way respectively, smash in order to the material that will enter the tow-away zone.
The plane cylinder sieve plate 31 or the curved surface cylinder sieve plate 11 that constitute the screen drum of described propelling screening section 3 and crushing and screening section 9 are fixed with countersunk bolt with tubular cage modle framework, constitute polygon rotary screen or curved surface rotary screen (referring to Fig. 6, Fig. 7); Crossbeam 18 correspondence positions at inner wall of rotary drum are fixing with riser 13 by fastening bolt 32; Plane cylinder sieve plate 31 or curved surface cylinder sieve plate 11 adopt wear-resisting potassium steel or high-strength steel sheet to make, and steel plate thickness 20-40 millimeter is between sieve aperture 30-150 millimeter.6 risers 13 axially are installed, riser 13 employing section steel manufactures, height 300 millimeter at inboard wall of riddle drum every 60 °.
35 every groups 4 of described beater plates, 90 ° at interval, it is staggered that two adjacent groups becomes, and stagger angle is 45 °.
Described dust cover 14 and discharge chute 6 can prevent flour dust overflow with the outside seal of cylindrical shell.Discharge chute 6 bottoms are travelling belt, and the width of the width of travelling belt and discharge chute 6 is suitable.Maintenance for convenience, the bottom of dust cover 14 should have service ports.
Drum drive among the present invention, central shaft drive unit have constituted the driver part of down-hole with bradford breaker jointly, drum driven drives decelerator 27 by drive motors 25 by shaft coupling 26 and rotates, decelerator 27 drives power transmission shaft 8 and rotates, initiatively support wheel 16 contacts with the rolling ring 12 at cylinder 10 two ends, drives cylinder 10 rotations by frictional drive.Central shaft 38 adopts chain drive, is rotated by driven by motor chain and then drive central shaft 38; The rotation direction of cylinder 10 and central shaft 38 is for driving in the same way.
The course of work of the present invention is as follows:
Material feeds the charging aperture 5 of the feed end 4 that enters rotating cylinder by cylinder 10 1 sides, is introduced into the prescreening section, and the material that a part of granularity is little passes the pre-screening section discharge gate 28 of bottom and discharges.All the other most of materials are advanced to and advance screening section 3 and crushing and screening section 9, and under the castering action that advances riser 13 and broken riser 13, material is thus lifted to peak in the tube, and the top from central shaft 38 after leaving enters the tow-away zone of hitting part 35.Material is broken having carried out repeatedly dropping, be subjected on the rotor 19 hitting the strike of part 35 simultaneously and fragmentation, for soft material, as coal, strike part 35 on the central shaft 38 imposes impact, makes it quicken that the back impinges upon with bigger speed on the inwall of cylinder 10 and broken; For rigid material, the strike part 35 on the central shaft 38 imposes effect such as impact, roll, and it is broken that material is forced.Material drops into broken the nail on 29 by further broken of splitting of riser 13 belows, especially bulk materials is by fully broken, then at the screw action power of riser 13 and material self along under the acting in conjunction of screen drum inclination direction partical gravity, material axially travels forward along cylinder 10.Material repeats to promote-fall in screen drum-process of fragmentation-screening, material has obtained abundant screening when returning cylinder 10 bottoms with cylinder 10, the sieve aperture 37 that fine is opened on cylinder 10 appears, discharge chute 6 by dust cover 14 bottoms is discharged on the discharging belt to be transported, and enters next procedure.And bulk materials such as spoil, metal sundries etc. rotate under the progradation at cylinder 10, discharge through discharge with endless screw auger 34 or marker impeller from the exhaust end 7 of screen drum 10.So just realized the separation of material.
1, riser 13 and cylinder 10 axially parallels, tubular axis and horizontal plane have certain angle (about 3 °).
2, riser 13 has certain angle (about 3 °) with cylinder 10 axis, be arranged in helical form, and tubular axis can be parallel with horizontal plane, and certain angle (about 3 °-5 °) is also arranged.
3, riser 13 and cylinder 10 axis are in a plane, and shaft screen is coniform, and feed end 4 diameters are little, and exhaust end 7 diameters are big.
4, riser 13 is axially installed 6 at cylinder 10 inwalls every 60 °, perhaps axially installs 8 every 45 °.
Structure of the present invention can have several forms of following difference, according to the character of different material with requirement and different.
1, for the fragmentation of soft material, every group of beater plate 35 can increase to 6---and 8, evenly distribute, the rotating speed of central shaft can reduce simultaneously.
2, according to the generation rule of mineral crackle, bulk materials cracks under less impulsive force, and medium and small material cracks fragmentation under bigger impulsive force, therefore beater plate 35 radius of gyration on the central shaft vertically feed end 4 increase gradually to exhaust end 7, to meet the Fracture law requirement.As shown in Figure 4.
3, look the brokenness of material, but 3 ° of beater plate 35 fore-and-aft tilts on the central shaft---5 °,, make material be unlikely to pulverizing to accelerate the speed that moves axially of material.
1, for soft material, can on sieve plate, design the Long Circle sieve aperture, its shape ratio is 1≤l/d≤2, the d value is bigger slightly than finished product granularity in the ordinary course of things.
2, for rigid material, directly alternately weld and form sieve aperture by grid section, use the fixedly broken nail 29 of splitting of fastening bolt 32 at the interface point place.See shown in Figure 7.
The design principle of cylinder 10 sieve plates:
Embodiment 6
The material outlet side can adopt discharge with endless screw, also can adopt the impeller discharge.Discharge with endless screw is not easy to damage, and simple in structure, but the impeller discharge is faster.
The present invention is simple in structure, and is reliable, and maintenance capacity is little, can effectively remove foreign material such as bulk spoil, metal and wooden unit, is fit to very much the operation of down-hole run-of-mine coal (ROM coal) sorting discharge refuse and uses.Though though the above portion that listed has gone out less embodiment, for those skilled in the art, its to any change that the present invention did, remodeling, this advances, replaces, reconfigures etc. all within the scope of protection of present invention.
Claims (7)
1. down-hole bradford breaker is characterized in that: rolling ring (12) level that described disintegrating machine comprises frames (23), be arranged on backing roll wheel mechanism on the frames, match by the support running roller with in the backing roll wheel mechanism around its cylindrical shell setting is installed in the rotating cylinder (1) on the backing roll wheel mechanism; Described rotating cylinder (1) comprises that cylinder (10) and ring wrap in the outer dust cover (14) of cylinder; Described cylinder (10) inner chamber by feed end (4) backward successively segmentation be set to pre-screening section (2), advance screening section (3), crushing and screening section (9), discharge zone (7), be provided with pre-screening section discharge gate (28) in pre-screening section (2) below, be provided with discharge chute (6) in the below of crushing and screening section (9); In cylinder (10), central shaft (38) by its rotation of drive power source is installed in mode with the cylinder coaxial line, be provided with beater plate (35) with the central shaft axis body of pre-screening section (2) section of matching, be provided with helical teeth shape rotor (19) with the central shaft axis body section of crushing and screening section (9) section of matching, be provided with discharge with endless screw auger (34) with the central shaft axis body section of discharge zone (7) section of matching; The barrel of described pre-screening section (2) and crushing and screening section (9) is the screen drum structure, the aperture of its sieve aperture is 30-150mm, and at interval the riser (13) of a plurality of axial settings is installed and the nail-plate (30) that (29) are followed closely in some splitting splittings is installed on the inboard wall of riddle drum of crushing and screening section (9); The riser (13) of a plurality of axial settings is installed in uniform mode on described propelling screening section (3) inwall.
2. down-hole according to claim 1 bradford breaker, it is characterized in that: described riser (13) and nail-plate (30) are all axially to become 3 °-15 ° angle setting with roller tube, shape is arranged in the shape of a spiral, and adjustable angle, and its yawing moment is consistent with the rotation direction of cylinder (10).
3. down-hole according to claim 1 bradford breaker, it is characterized in that: the cross section of described broken splitting nail (29) is pyramid structure, crest line from the contact-making surface of break broken nail (29) and nail-plate (30) along pyramid evenly is provided with four ribs until the finger top obliquely, article four, ribs is in the roof intersection of nail, nail length is 70---400mm, the axial spacing of the broken nail of splitting is sparse gradually from the feeding mouth to the discharging opening, feeding end nail spacing is consistent with slot size, and discharge end nail spacing is 2-3 times of sieve aperture spacing.
4. down-hole according to claim 1 bradford breaker, it is characterized in that: described helical teeth shape rotor (19), beater plate (35) and discharge with endless screw auger (34) are installed in central shaft (38) corresponding position by axle sleeve (36) respectively, and combine with central shaft by the key ways of connecting; 4 every group of described beater plates (35), 90 ° at interval, it is staggered that two adjacent groups becomes, and stagger angle is 45 °.
5. down-hole according to claim 1 bradford breaker is characterized in that: described dust cover (14) combines with frames (23), is provided with dust removing tube (15) at dust cover (14) top, and dust removing tube (15) links to each other with the deduster of outside; Be provided with the clearing apparatus that constitutes by brush sweeper (33) at the lower nozzle place of dust removing tube.
6. down-hole according to claim 1 bradford breaker, it is characterized in that: described backing roll wheel mechanism comprises along frames (23) length direction arranges two groups of backing roll wheels of being made up of active support wheel (16) and driven support wheel (17) respectively that are provided with, the bearing diagonal seat (21) that active support wheel (16) in every group of backing roll wheels and driven support wheel (17) are provided with by relative tilt respectively combines with the respective support base (22) on being fixedly mounted on frames (23), and two the active support wheels (16) that are provided with in the coaxial line mode that are positioned at frames (23) homonymy combine with driving mechanism by power transmission shaft (8); The circular inner groovy structure of the wheel rim section configuration of described active support wheel (16) and driven support wheel (17) for matching with rolling ring (12) section configuration; And two groups of backing roll wheels are asymmetric layout, and wherein feeding end supports running roller spacing δ
1Less than discharge end running roller spacing δ 2, and wherein be provided with the governor motion that is used for spacing between one group of support running roller; Described frames (23) below is equipped with and is used to the slip rail wheel (24) of realizing that complete machine moves.
7. down-hole according to claim 1 bradford breaker is characterized in that: the cross section of the screen drum of described propelling screening section (3) and crushing and screening section (9) is polygonized structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102199743A (en) * | 2011-04-27 | 2011-09-28 | 重庆大有表面技术有限公司 | Automatic separating and recovering device for zinc-nickel permeated layer permeating agent |
| CN102964074A (en) * | 2012-09-27 | 2013-03-13 | 徐州天地重型机械制造有限公司 | Construction waste recycled aggregate shaping machine |
| CN103691198A (en) * | 2013-12-20 | 2014-04-02 | 西安洁姆环保科技有限责任公司 | Solid-liquid mixture separating device |
| CN103721780A (en) * | 2012-10-16 | 2014-04-16 | 义乌市黑白矿山机械有限公司 | Coaxial breaking and sieving integrated machine |
| CN104607279A (en) * | 2015-02-12 | 2015-05-13 | 李长娟 | Support roller-containing powder preparation device for ceramics and use method thereof |
| CN105268355A (en) * | 2014-06-24 | 2016-01-27 | 中联重科股份有限公司 | Transmission device and engineering machinery with transmission device |
| CN107029836A (en) * | 2017-06-01 | 2017-08-11 | 郭大军 | A kind of certainly broken roller screen of autogenous grinding |
| CN108187809A (en) * | 2017-12-29 | 2018-06-22 | 宁波清智环保科技有限公司 | Solid waste treatment facility |
| CN108476691A (en) * | 2018-05-24 | 2018-09-04 | 东北农业大学 | A kind of mechanical online homogeneous hybrid system of solid-state fertilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102199743A (en) * | 2011-04-27 | 2011-09-28 | 重庆大有表面技术有限公司 | Automatic separating and recovering device for zinc-nickel permeated layer permeating agent |
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| CN102964074A (en) * | 2012-09-27 | 2013-03-13 | 徐州天地重型机械制造有限公司 | Construction waste recycled aggregate shaping machine |
| CN103721780A (en) * | 2012-10-16 | 2014-04-16 | 义乌市黑白矿山机械有限公司 | Coaxial breaking and sieving integrated machine |
| CN103721780B (en) * | 2012-10-16 | 2015-12-16 | 义乌市黑白矿山机械有限公司 | A kind of close coupled type crushing and screening all-in-one |
| CN103691198A (en) * | 2013-12-20 | 2014-04-02 | 西安洁姆环保科技有限责任公司 | Solid-liquid mixture separating device |
| CN105268355A (en) * | 2014-06-24 | 2016-01-27 | 中联重科股份有限公司 | Transmission device and engineering machinery with transmission device |
| CN104607279A (en) * | 2015-02-12 | 2015-05-13 | 李长娟 | Support roller-containing powder preparation device for ceramics and use method thereof |
| CN107029836A (en) * | 2017-06-01 | 2017-08-11 | 郭大军 | A kind of certainly broken roller screen of autogenous grinding |
| CN107029836B (en) * | 2017-06-01 | 2023-08-08 | 郭大军 | Self-grinding and self-breaking roller screen |
| CN108187809A (en) * | 2017-12-29 | 2018-06-22 | 宁波清智环保科技有限公司 | Solid waste treatment facility |
| CN108476691A (en) * | 2018-05-24 | 2018-09-04 | 东北农业大学 | A kind of mechanical online homogeneous hybrid system of solid-state fertilizer |
| CN108476691B (en) * | 2018-05-24 | 2024-01-23 | 东北农业大学 | Online homogeneity mixing system of mechanical solid fertilizer |
| CN109107690A (en) * | 2018-10-29 | 2019-01-01 | 张海亭 | A kind of sorting unit of iron ore |
| CN113477689A (en) * | 2021-07-27 | 2021-10-08 | 六安市叶集区长塔农业科技有限公司 | Soil remediation equipment capable of automatically feeding |
| CN113477689B (en) * | 2021-07-27 | 2022-09-06 | 中煤科工集团武汉设计研究院有限公司 | Soil remediation equipment capable of automatically feeding |
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