CN102794390B - A kind of (sand) reclaimer - Google Patents
A kind of (sand) reclaimer Download PDFInfo
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- CN102794390B CN102794390B CN201210255221.4A CN201210255221A CN102794390B CN 102794390 B CN102794390 B CN 102794390B CN 201210255221 A CN201210255221 A CN 201210255221A CN 102794390 B CN102794390 B CN 102794390B
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- sand
- upper millstone
- flour milling
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Abstract
The present invention relates to a kind of (sand) reclaimer, what comprise frame and upper setting thereof can relatively pivotal upper millstone and lower millstone, the lower end of upper millstone is provided with upper millstone flour milling, the upper end of lower millstone be provided with to upper millstone flour milling position relatively and extrude for coordinating with upper millstone flour milling, lower millstone flour milling, described upper millstone flour milling and the accommodation gap be provided with between lower millstone flour milling for holding corresponding old sand particle of the corresponding old sand particle of rubbing.Old sand particle not breakable (sand) reclaimer when the invention provides the lower and regenerating used of a kind of use cost.
Description
Technical field
The present invention relates to the (sand) reclaimer for the regenerating used produced in Foundry Production.
Background technology
In Foundry Production industry, no matter be adopt clay-bonded sand casting or adopt water-glass sand casting, capital produces a large amount of antiquated sands, also claims old sand, and resin self-setting sand old sand is all used for phenolic sand molding and coremaking by nearly all resin self-setting sand manufacturing enterprise after mechanical friction mode regenerates; Some Enterprises is by impacting and rubbing clay old sand, and removal unit divides the dead clay mambrane of sand grain surface, and all or part of replacement fresh sand is used in clay-bonded sand; These processing modes are difficult to remove the coated dead clay of sand grain surface and inert coating, and the regeneration effect reached is limited, cause casting quality reduction, hydraulic performance decline.Old sand is just abandoned by most enterprise after reuse several times, again changes fresh sand, causes environmental pollution and cost to improve.Along with the raising required casting quality, from the angle of economy and environmental protection, regenerating used has become indispensable part in Foundry Production.
At present, the reclamation technique method that factory commonly uses mainly is divided into three major types according to the difference of its equipment operation principle: dry reclamation, wet reclamation, thermal reclamation.Thermal reclamation is, by roaster, old sand is heated to 850-900 DEG C, to remove the renovation process of flammable residue on old sand grain, thermal reclamation is good especially to the regeneration effect of organic binder bond sand, remaining binder removes totally, the Heat stability is good of reclaimed sand, can recover former size distribution, but cost is higher, energy consumption is comparatively large, and its use is subject to certain restrictions.Wet reclamation utilizes the dissolving of water, scrubbing action and mechanical agitation, makes the false breakage of particles in old sand, and the remaining binder film of sand grain surface dissolves, comes off or remove.The major advantage of wet reclamation is, the old sand water-soluble to some, has good regeneration effect, reclaimed sand quality is good, and can make facing sand and use, the regeneration rate of old sand is high, its major defect is that complex process, floor space are comparatively large, and cost is high, and has the problems such as sewage disposal.But in order to avoid this difficult problem of regenerating used sewage disposal, current regenerating used multi-steering adopts dry reclamation.
Dry reclamation is divided into again centrifugal, air-flowing type, oscillatory type, reverse-flow etc., the regeneration of centrifugal and air-flowing type utilizes mechanical centrifugal power and compressed air stream that old sand grain is accelerated to certain speed, relies between sand grains and hardware or rubbing action that sand grains is mutual regenerates old sand; Oscillatory type regeneration is under the effect of vibration force, the body filling old sand block ceaselessly vibrates, thus cause impact between sand lump, friction, and the impact of sand lump and vibrating body inwall, friction, make sand lump breaking, old sand grain regenerated, reverse-flow regeneration is used for regeneration old sand by the strong friction between sand grains and between sand grains and component.Above-mentioned these are centrifugal, the operation principle of air-flowing type, oscillatory type and reverse-flow dry reclamation is by making old sand capsomere produce higher speed, then there is severe impact, collision between old sand particle and old sand particle and between old sand particle and relevant device, thus old sand grain is regenerated, therefore the larger speed of old sand particle is a necessary condition of regenerating used.The demoulding power that these process of regenerating provide is limited, can not remove the residual film on old sand grain completely, and the quality of reclaimed sand is not too high; Owing to needing for old sand housing provides higher speed; this just needs equipment to have higher intensity; add the cost of equipment; the old sand that high speed is little is quite serious to the wearing and tearing of equipment; the replacement frequency of equipment is higher; too increase the cost of equipment; simultaneously; because old sand particle is frangible; old sand particle at a high speed mutually impacts, collides, and often there will be old sand Particle Breakage phenomenon, along with the raising of old sand particle demolding rate; speed needed for old sand particle, impulsive force and frictional force are larger, the wearing and tearing of element of installation and the Fragmentation Phenomena of old sand particle more serious.
Summary of the invention
The object of the present invention is to provide a kind of use cost lower and regenerating used time old sand particle not breakable (sand) reclaimer.
In order to solve the problem, technical scheme of the present invention is:
A kind of (sand) reclaimer, what comprise frame and upper setting thereof can relatively pivotal upper millstone and lower millstone, the lower end of upper millstone is provided with upper millstone flour milling, the upper end of lower millstone be provided with to upper millstone flour milling position relatively and extrude for coordinating with upper millstone flour milling, lower millstone flour milling, described upper millstone flour milling and the accommodation gap be provided with between lower millstone flour milling for holding corresponding old sand particle of the corresponding old sand particle of rubbing.
Described lower millstone and described gantry rotation assemble, and are provided with the elasticity pre-tightening mechanism forcing described upper millstone to move towards described lower millstone between described upper millstone and described frame.
Described upper millstone is arranged in described frame by the exportable governor motion adjusting action is up and down moving up and down.
Described governor motion comprises and is fixedly arranged on adapter sleeve in described frame and upper end and is arranged in connecting rod in the endoporus of described adapter sleeve, lower end and the described upper millstone of described connecting rod are fixedly linked, and described connecting rod is threaded in the top of described adapter sleeve moves up and down the adjusting nut of adjustment to connecting rod.
Assemblage gap is provided with between the outer peripheral face of described connecting rod and the inner hole wall of described adapter sleeve, described elasticity pre-tightening mechanism comprises the Adjusting bolt Adjusting screw be arranged in described assemblage gap, the outer peripheral face of described Adjusting bolt Adjusting screw is threaded with the inner hole wall of described adapter sleeve, described elasticity pre-tightening mechanism also comprises the pre-compressed spring be set on described connecting rod, and pre-compressed spring is mounted between Adjusting bolt Adjusting screw and upper millstone.
The lower end of described upper millstone is provided with the upper millstone roll flute of screw involute shape distribution, and described upper millstone roll flute has the lower surface of arc, and the lower surface of described upper millstone roll flute constitutes described upper millstone flour milling; Described lower millstone upper end is provided with the lower millstone roll flute of screw involute shape distribution, and described lower millstone roll flute has the upper surface of arc, and the upper surface of described lower millstone roll flute constitutes described lower millstone flour milling.
Described upper millstone comprises upper millstone body and is fixedly arranged on the upper millstone wearing plate of described upper millstone body lower end, and described upper millstone roll flute and described upper millstone wearing plate are wholely set; Described lower millstone comprises lower millstone body and is fixedly arranged on the lower millstone wearing plate of described lower millstone body upper end, and described lower millstone roll flute and described lower millstone wearing plate are wholely set.
Described upper millstone wearing plate is spliced by the fan-shaped upper wearing plate that polylith shape is identical, and the outer arc line of all fan-shaped upper wearing plates is a full circle; Described lower millstone wearing plate is spliced by the fan-shaped lower wearing plate that polylith shape is identical, and the outer arc line of all fan-shaped lower wearing plates is a full circle.
The middle part of described upper millstone is provided with runs through its upper and lower end face and for the charging hole of corresponding old sand charging, the lower end of described charging hole is communicated with described accommodation gap.
Described (sand) reclaimer also comprise be arranged at below described lower millstone for collect corresponding through upper and lower mill to the annular sand hopper of old sand after mill, the upper end of described annular sand hopper is provided with dust cover, described dust cover offers dedusting hole.
Beneficial effect of the present invention is: during use, corresponding old sand is positioned over, in accommodation gap between lower millstone, on, the relative gyration of lower millstone, upper, in the gyration process of lower millstone, between old sand particle and old sand particle, old sand particle and upper, extrude between the abradant surface of lower millstone, friction and grinding, the characteristic wear-resisting due to old sand particle and upper, the pressurization of lower millstone, rubbing effect, the Duo film of old sand particle surface is made to be easy to remove, do not need in the removal process of inert coating, larger relative speed of gyration is had between lower millstone, this reduces the requirement of regenerating used to equipment, thus reduce the cost of equipment, violent impact, collision can not be there is between old sand particle and old sand particle and between old sand particle and upper and lower mill, old sand particle is not easily broken, and old sand particle can not be very serious to the wearing and tearing of upper and lower mill, thus also reduce the replacement frequency of equipment consumable accessory.
Further, connecting rod and adjusting nut can adjust upper millstone and move up and down, thus the width up and down in gap is held in adjustment, can increase the scope of application of whole (sand) reclaimer.
Further, by the effect of pre-compressed spring and Adjusting bolt Adjusting screw, the adjustment of pressure between upper and lower mill can be realized, thus increase the grinding effect of upper and lower mill to old sand particle.
Further, all helically involute distribution of upper and lower mill roll flute, such old sand particle, in the process of lapping of upper and lower mill, can move to mill edge by spiral involute track gradually by the middle part of mill, facilitate discharging.
Further, charging hole is set at the middle part of upper millstone, can grind feed in raw material, discharging on one side, can realize continuous seepage, improve regenerating used efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is that the B-B of Fig. 1 is to sectional view;
Fig. 4 is the scheme of installation of upper millstone wearing plate in Fig. 1;
Fig. 5 is the scheme of installation of lower millstone wearing plate in Fig. 1;
Fig. 6 is that D-D in Fig. 2 is to sectional drawing;
Fig. 7 is the structural representation of single fan-shaped lower wearing plate in 5;
Fig. 8 is that the A-A of Fig. 7 is to sectional view.
Detailed description of the invention
A kind of embodiment of (sand) reclaimer is as shown in Fig. 1 ~ 8: comprise frame and be arranged at the master collet 5 in frame by frame tie-beam 7, the inner hole wall of master collet 5 is rotatably equipped with by rolling bearing and thrust bearing the main shaft 6 that pivot center extends along the vertical direction, the upper end of main shaft 6 is fixed with lower millstone 14 by screw, the lower end of main shaft 6 is fixed with drive pulley 31, the side of frame is provided with the driving mechanism driving lower millstone 14 to rotate, driving mechanism comprises drive motors 1, the clutch end of drive motors 1 is in transmission connection by the drive pulley 31 of driving-belt 2 with main shaft 6 lower end.The top of lower millstone 14 is provided with upper millstone 15, upper millstone 15 mounts on the back timber 11 of frame by the exportable governor motion 13 adjusting action is up and down moving up and down, governor motion 13 comprises and welds the adapter sleeve 24 that is fixed on back timber 11 and upper end and be arranged in connecting rod 13 in adapter sleeve 24, connecting rod 13 is threaded in the top of adapter sleeve 24 and connecting rod 13 is moved up and down to the adjusting nut 23 of adjustment, assemblage gap is provided with between the outer peripheral face of connecting rod 13 and the inner hole wall of adapter sleeve 24, connecting rod 13 is set with Adjusting bolt Adjusting screw 25 in assemblage gap, the outer peripheral face of Adjusting bolt Adjusting screw 25 is threaded with the inner hole wall of adapter sleeve 24, the outer peripheral face of Adjusting bolt Adjusting screw 25 has been threaded in the below of adapter sleeve 24 thin nut 22.The upper end welding of upper millstone 15 is fixed with connecting rod hold-down nut 26, the lower end of connecting rod 13 is threaded with connecting rod hold-down nut 26, connecting rod 13 is top-loaded with pre-compressed spring 21 between Adjusting bolt Adjusting screw 25 and connecting rod hold-down nut 26, and Adjusting bolt Adjusting screw 25 and pre-compressed spring 21 constitute the elasticity pre-tightening mechanism forcing described upper millstone to move towards described lower millstone.Upper millstone 15 comprises upper millstone body 30 and is installed with the upper millstone wearing plate 32 be made up of wear-resisting alloy steel of upper millstone body 30 lower end, upper millstone wearing plate 32 is spliced by ten block-shaped identical fan-shaped upper wearing plates 17, each fan-shaped upper wearing plate 17 is fixedly linked with upper millstone body 30 by screwing 19 and upper positioning key 18, the lower end of each fan-shaped upper wearing plate 17 is all integrally formed with upper millstone roll flute 33, all fan-shaped on after wearing plate 17 is bolted together, the outer arc line of all fan-shaped upper wearing plates 17 is a full circle, the distribution in continuous print spiral involute shape of upper millstone roll flute 33 on all fan-shaped upper wearing plates 17, upper millstone roll flute 33 has the lower surface of arc, upper millstone wearing plate 32 is made up of multiple fan-shaped upper wearing plate 17 can the expediently maintenance of mill wearing plate 32 each several part and replacing.The lower millstone wearing plate 35 that lower millstone 14 comprises lower millstone body 36 and is made up of Wear-resistant alloy steel material, lower millstone wearing plate 35 is spliced by ten block-shaped identical fan-shaped lower wearing plates 40, each fan-shaped lower wearing plate 40 is fixedly linked with lower millstone body 36 by lower screw 39 and lower positioning key 38, in figure, part 50 represents the lower positioning spline with lower positioning key 38 location fit, the lower end of each fan-shaped lower wearing plate 40 is all integrally formed with lower millstone roll flute 34, after all fan-shaped lower wearing plates 40 are bolted together, the outer arc line of all fan-shaped lower wearing plates 40 is a full circle, the distribution in continuous print spiral involute shape of lower millstone roll flute 34 on all fan-shaped lower wearing plates 40, lower millstone roll flute 34 has the upper surface of arc.The lower surface of all upper millstone roll flutes 33 constitutes the upper millstone flour milling for extruding, grinding corresponding old sand, the upper surface of all lower millstone roll flutes 34 constitutes and to be oppositely arranged to upper millstone flour milling and lower millstone flour milling for extruding, grinding corresponding old sand, is provided with the accommodation gap 37 for holding corresponding old sand particle between upper and lower mill flour milling.The middle part of upper millstone 15 be provided with two run through its upper and lower end face and for the charging hole 20 of corresponding old sand charging, the lower end of two charging holes 20 is communicated with accommodation gap 37, the upper end of two charging holes 20 is communicated with feeding cylinder 12, and feeding cylinder 12 slides and is plugged in charging hole 20.(sand) reclaimer also comprise be arranged at below 14 lower millstones for collect corresponding through upper and lower mill to the annular sand hopper 8 of old sand after mill, the upper end of annular sand hopper 8 is fixedly connected with upper millstone body 30, the upper end of annular sand hopper 8 is provided with dust cover 10, dust cover 10 offers dedusting hole 9.Whole frame is the frame structure be made up of column 4 and crossbeam 16, adopts this structure while guarantee frame strength, can reduce the weight of frame, simultaneously at the scene installation frame time, as long as make to weld with embedded board 3 bottom column 4, easy for installation.
During use, old sand particle enters in the accommodation gap 37 between upper and lower platen through feeding cylinder 12, charging hole 20, drive motors 1 drives pressing disc 14 to rotate, the upper and lower mill roll flute of upper and lower platen extrudes old sand particle, exchanges views, connecting rod 13 and adjusting nut 23 can adjust the gap between upper and lower platen, thus making accommodation gap adapt to different size old sand particle, pre-compressed spring 21 and Adjusting bolt Adjusting screw 25 regulate the extruding force of upper platen 15, thus ensure the grinding effect to old sand particle.In the relative turning course of upper and lower platen, old sand particle can under centrifugal force and Action of Gravity Field, and transport to edge until fall into annular sand hopper by spiral involute track by the middle part holding gap, dust is then discharged by dedusting hole.This (sand) reclaimer compact conformation, rationally, grinding gap, pressure adjustable, strong adaptability, sand grains percentage of damage is low, and grinding effect is good, and pollute little, use value is high, and can realize continuous continual production.
In other embodiments of the invention: drive motors can also be replaced by hydraulic motor; Governor motion can also be conditioned cylinder and replace, and certain governor motion also can not be established, and the pre-compressed spring in elasticity pre-tightening mechanism also can immediate roof be loaded between frame and upper platen; Pressing disc can also maintain static, and now drive motors can rotate by driving upper platen, and transmission now can be by external toothing transmission; Upper and lower mill wearing plate can be all that an integrally-built wearing plate is formed, and the roll flute be arranged on corresponding wearing plate also can be integrally formed on corresponding mill body, now can be connected the wearing layer that high-abrasive material makes at the outer surface of roll flute; Certainly the roll flute arranged on each mill wearing plate can not have yet, and after old sand particulate abrasive, can be taken away by old sand particle after raising upper platen; The number of charging hole can also be one; Adapter sleeve can also be integrally formed on back timber.
Claims (7)
1. a (sand) reclaimer, it is characterized in that: what comprise frame and upper setting thereof can relatively pivotal upper millstone and lower millstone, the lower end of upper millstone is provided with upper millstone flour milling, the upper end of lower millstone is provided with relative with upper millstone flour milling position and extrudes for coordinating with upper millstone flour milling, the lower millstone flour milling of the corresponding old sand particle of rubbing, described upper millstone flour milling and the accommodation gap be provided with between lower millstone flour milling for holding corresponding old sand particle, the middle part of described upper millstone is provided with runs through its upper and lower end face and for the charging hole of corresponding old sand charging, the lower end of described charging hole is communicated with described accommodation gap, described lower millstone and described gantry rotation assemble, the elasticity pre-tightening mechanism forcing described upper millstone to move towards described lower millstone is provided with between described upper millstone and described frame, described (sand) reclaimer also comprise be arranged at below described lower millstone for collect corresponding through, lower millstone is to the annular sand hopper of the old sand after mill, the upper end of described annular sand hopper is provided with dust cover, described dust cover offers dedusting hole.
2. (sand) reclaimer according to claim 1, is characterized in that: described upper millstone is arranged in described frame by the exportable governor motion adjusting action is up and down moving up and down.
3. (sand) reclaimer according to claim 2, it is characterized in that: described governor motion comprises and is fixedly arranged on adapter sleeve in described frame and upper end and is arranged in connecting rod in the endoporus of described adapter sleeve, lower end and the described upper millstone of described connecting rod are fixedly linked, and described connecting rod is threaded in the top of described adapter sleeve moves up and down the adjusting nut of adjustment to connecting rod.
4. (sand) reclaimer according to claim 3, it is characterized in that: between the outer peripheral face of described connecting rod and the inner hole wall of described adapter sleeve, be provided with assemblage gap, described elasticity pre-tightening mechanism comprises the Adjusting bolt Adjusting screw be arranged in described assemblage gap, the outer peripheral face of described Adjusting bolt Adjusting screw is threaded with the inner hole wall of described adapter sleeve, described elasticity pre-tightening mechanism also comprises the pre-compressed spring be set on described connecting rod, and pre-compressed spring is mounted between Adjusting bolt Adjusting screw and upper millstone.
5. the (sand) reclaimer according to claim 1 ~ 4 any one, it is characterized in that: the lower end of described upper millstone is provided with the upper millstone roll flute of screw involute shape distribution, described upper millstone roll flute has the lower surface of arc, and the lower surface of described upper millstone roll flute constitutes described upper millstone flour milling; Described lower millstone upper end is provided with the lower millstone roll flute of screw involute shape distribution, and described lower millstone roll flute has the upper surface of arc, and the upper surface of described lower millstone roll flute constitutes described lower millstone flour milling.
6. (sand) reclaimer according to claim 5, is characterized in that: described upper millstone comprises upper millstone body and is fixedly arranged on the upper millstone wearing plate of described upper millstone body lower end, and described upper millstone roll flute and described upper millstone wearing plate are wholely set; Described lower millstone comprises lower millstone body and is fixedly arranged on the lower millstone wearing plate of described lower millstone body upper end, and described lower millstone roll flute and described lower millstone wearing plate are wholely set.
7. (sand) reclaimer according to claim 6, is characterized in that: described upper millstone wearing plate is spliced by the fan-shaped upper wearing plate that polylith shape is identical, and the outer arc line of all fan-shaped upper wearing plates is a full circle; Described lower millstone wearing plate is spliced by the fan-shaped lower wearing plate that polylith shape is identical, and the outer arc line of all fan-shaped lower wearing plates is a full circle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255221.4A CN102794390B (en) | 2012-07-23 | 2012-07-23 | A kind of (sand) reclaimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210255221.4A CN102794390B (en) | 2012-07-23 | 2012-07-23 | A kind of (sand) reclaimer |
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| CN102794390A CN102794390A (en) | 2012-11-28 |
| CN102794390B true CN102794390B (en) | 2015-09-23 |
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| CN201210255221.4A Active CN102794390B (en) | 2012-07-23 | 2012-07-23 | A kind of (sand) reclaimer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722354A (en) * | 2013-12-18 | 2015-06-24 | 上海世邦机器有限公司 | Vertical spindle type disc crusher with sieving function |
| CN105945219B (en) * | 2016-06-27 | 2019-01-22 | 苏州欣苏诚铸造机械有限公司 | Rubbing regenerating device |
| CN108339616B (en) * | 2018-02-10 | 2019-01-08 | 佛山市三水鲸鲨化工有限公司 | A kind of Morphology Control Technology equipment of newest powder body material |
| CN115090357B (en) * | 2022-06-20 | 2023-06-27 | 镇江市合一新能源材料科技有限公司 | Reaction kettle body for recycling palladium-carbon catalyst and application method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085895A (en) * | 1996-09-18 | 1998-04-07 | Howa Chuki Kk | Molding sand regenerating machine |
| AU7449798A (en) * | 1998-05-21 | 1999-12-06 | Hiromi Yamamoto | Cement grinder |
| DE10358416B3 (en) * | 2003-12-13 | 2005-04-28 | Haering Joerg | Device for regenerating foundry sand comprises a breaker consisting of a fixed grinding plate and a rotating grinding disk with a vertical axis of rotation |
| CN101342505A (en) * | 2008-08-07 | 2009-01-14 | 西安建筑科技大学 | Grinding disc of high-voltage panel type grinding equipment |
| EP2514539B1 (en) * | 2009-12-18 | 2016-07-06 | Matsukawa, Yasutsugu | Granular body grinding device |
| CN202667544U (en) * | 2012-07-23 | 2013-01-16 | 机械工业第四设计研究院 | Sand reclaiming device |
| CN202667545U (en) * | 2012-07-23 | 2013-01-16 | 机械工业第四设计研究院 | Sand reclaiming mechanism |
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