CN102798287B - Roasting rotary furnace - Google Patents
Roasting rotary furnace Download PDFInfo
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- CN102798287B CN102798287B CN201210286057.3A CN201210286057A CN102798287B CN 102798287 B CN102798287 B CN 102798287B CN 201210286057 A CN201210286057 A CN 201210286057A CN 102798287 B CN102798287 B CN 102798287B
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Abstract
The invention relates to a roasting rotary furnace belonging to the technical field of non-ferrous metal metallurgy, in particular to a structural improvement on the roasting rotary furnace. The invention provides a small roasting rotary furnace. The roasting rotary furnace has the characteristics of spiral back-and-forth rapid uniform feeding, hydraulic tipping discharge mode, controllable reduction time, high thermal efficiency, wide scope of application and low cost. The roasting rotary furnace comprises a furnace body, wherein a supporting and positioning mechanism and a transmission mechanism are arranged on a base of the furnace body; and the roasting rotary furnace has the key structural points that a hydraulic tipping mechanism is arranged below the base, the discharge end of the furnace body is provided with a solid discharge port and a melt discharge port, the feed end of the furnace body is provided with a furnace head cover body with a burner, and a feed mechanism is arranged on the side part of the furnace head cover body.
Description
Technical field
the invention belongs to non-ferrous metal metallurgy process equipment technical field, more particularly, relate to a kind of improvement of calcination rotary kiln structure.
Background technology
calcining kiln (being calcination rotary kiln) is the Thermal Equipment of fall apart shape or pasty material being carried out to heat treated, and calcining kiln occupies an important position in nonferrous production; This equipment is used for to ore, and concentrate and intermediate product carry out sintering, the heat treated such as roasting.
existing calcining kiln is the horizontal cylinder shape equipment of hollow, kiln body shell is rolled into by steel plate, slightly tilts and horizontal plane (gradient is that every meter of length is 20～60 millimeters), around vertical axes, furnace charge is borrowed the effect of the gradient vertically, and the revolution of kiln and the thrust of material travel forward.The length of calcining kiln can be tens of rice to 100 tens of rice, diameter is from 3 meters to more than 6 meters or 6 meters, selected arbitrarily with technological requirement.Cylindrical shell is rolled into by steel plate, is the container that material completes physicochemical change, because of but the matrix of calcining kiln.In order to adapt to high temperature, play protection cylindrical shell and reduce heat radiation therefore all build refractory material (being liner) in cylindrical shell by laying bricks or stones.According to the change procedure of material, in cylindrical shell, be divided into each work band, as drying belt, give the torrid zone, point ungird, clinkering zone (or reaction zone) etc.Also comprise bracing or strutting arrangement, transmission device, burner and charging (feeding) equipment, bracing or strutting arrangement bears the total weight of rotating part, and its tricks is called the gear number of kiln, generally has 4～8 grades, and material enters kiln form and conventionally adopts chute feed-type.Existing calcining kiln is mainly used for processing and is easy to mobile furnace charge.
due to the high speed development of World Economics and the great demand of stainless steel industry, the whole world constantly increases the demand of metallic nickel.Along with can economic utilization, nickel sulfide ore resource that grade is higher is day by day exhausted, the emphasis of development of resources is turned to the abundant but lower lateritic nickel ore (nickel ore) of grade of reserves by global nickel industry.This certainly will have higher requirement to smelting process method, the process equipment of the lower lateritic nickel ore of grade.
ferronickel technique (being usually used in the reduction roasting of the nickel sulfide ore that grade is higher) is produced in reduction melting: the existing calcination rotary kiln equipment in rotary kiln electric furnace process, rotary kiln blast furnace process, rotary kiln Blast Furnace Method has the large feature for the treatment of capacity.Although the structure of existing calcining kiln has been carried out to continuous improvement, its structure is become increasingly complex, diameter is large, kiln body is long, profile is huge; In actual use procedure, the thermal efficiency is very low, it is huge to take up an area, and operation, difficult in maintenance, greatly increased labour intensity, and the recovery time is difficult to grasp.And the cost of existing calcining kiln improves constantly, a lot of medium-sized and small enterprises cannot be born at all.
ferronickel is produced also has rotary kiln production nodulizing process, and this technique is, after low-grade lateritic nickel ore drying, fragmentation, screening are processed, to mix in proportion with flux, reducing agent, adds rotary kiln to fuse.Ore is reduced in calcination rotary kiln, generates spongiform dilval.The mixture of alloy and slag obtains thick ferronickel granule through processing such as shrend, cooling, broken, screening, magnetic separation or gravity treatments.Adopt the method in existing calcining kiln, to process low grade nickel ore and also have the shortcomings such as production efficiency is low, the rate of recovery of nickel is low, be not promoted in the past.
Summary of the invention
the present invention is exactly for the problems referred to above, make up the deficiencies in the prior art, a kind of small-sized calcining kiln is provided, and this roasting rotary furnace has spiral and comes and goes the feature that marker method, recovery time are controlled, the thermal efficiency is high, the scope of application is wide, cost is low that Quick uniform feed, hydraulic pressure are tumbled.
for realizing above-mentioned purpose of the present invention, the present invention adopts following technical scheme.
the present invention includes kiln body, on the base of kiln body, be provided with supporting and positioning mechanism and transmission mechanism, its structural feature: the below of base is provided with hydraulic tipping gear, kiln body discharge end is provided with solid discharging opening and melt discharging opening, kiln body feeding end side is provided with the kiln hood cover body with burner, and the side of kiln hood cover body is feeder.
particularly, described solid discharging opening is that one and melt discharging opening are two; Two melt discharging openings and fixing discharging opening coexist on a circumference, and this circumference is the bottom surface circumference of the cylindric inner chamber of kiln body, and the angle that two melt discharging openings and circle center line connecting are is 120 °.
described kiln body inner lining refractory block layer, the upper end of kiln body discharge end intracavity sidewall is provided with solid discharging opening, and lower end is provided with melt discharging opening, and the sidewall middle part of kiln body discharge end inner chamber is provided with observation panel; Kiln external body adopts the end enclosure structure of orthodrome transition; Gear ring on the external wall of kiln is meshed with the gear of transmission mechanism, and gear is connected with variable-frequency motor by reductor; On the external wall of kiln, the both sides of gear ring are also provided with wheel band; Described supporting and positioning mechanism comprises flat carrier roller and having along carrying roller, and the wheel band of kiln body feeding end is arranged on flat carrier roller, and the wheel band of kiln body discharge end has been arranged on along on carrying roller; The bottom of kiln body discharge end base has the bearing of being fixedly hinged, and the opposite side of base is connected with the push rod of below hydraulic tipping gear by being movably hinged bearing.
further, the connected mode of described gear ring and kiln body adopts the outer wall welding of some tangent spring-plates and kiln body.
further, described hydraulic tipping gear comprises two bearings that are fixedly hinged, and two are movably hinged bearing, and two hydraulic cylinders; Two bearings that are fixedly hinged be arranged on symmetrically kiln axon to both sides, the bottom of kiln body discharge end base, the bottom welding of be fixedly hinged bearing one end and base, the other end, by being embedded in advance foundation bolt in basis closing, adopts bearing pin to connect between pivoting support; Two be movably hinged bearing be arranged on symmetrically kiln axon to both sides, the below at base middle part, be movably hinged the bottom welding of bearing one end and base, the other end is connected with the push rod of hydraulic cylinder by bearing pin, and close by the foundation bolt handle being embedded in advance in cheating fundamentally the bottom of hydraulic cylinder.
described kiln hood cover body comprises the cover body of the inner lining refractory block layer on the first support and the first support top, on cover body, be provided with the exhaust opening corresponding with kiln body feeding end kiln body entrance and the flame import of burner, the flue of exhaust opening in cover body is connected with off-gas recovery treatment system.
further, between described kiln body and cover body, be provided with gap, gap is 40～50mm.
described feeder comprises helixes feed equipment, running gear and the second support, and track one end of running gear is arranged on the second support, and the other end of running gear track has lead limit switch, and is arranged on the first support; The feed support both sides that are fixed on helixes feed equipment below are respectively arranged with a group of being positioned on track and have driving wheel and one group of driven pulley of movable motor; Helixes feed equipment comprises screw feeder cylinder, the distolateral connected feed motor of same screw feeder cylinder that is provided with of entrance of screw feeder cylinder, and arrival end top is feed hopper, the below of the port of export is feed opening.
as another kind of preferred version of the present invention, screw feeder cylinder one end of helixes feed equipment is provided with feed motor, the one end that can stretch into kiln body is provided with temperature resistant encapsulation cover, the motor-driven screw feeder bar of the built-in feed of screw feeder cylinder, the other end of screw feeder bar is arranged on the heat-resisting bearing in temperature resistant encapsulation cover; Screw feeder cylinder and screw feeder bar between driven pulley and temperature resistant encapsulation cover all adopt heat resisting steel.So that helixes feed equipment can bear the hot environment in kiln body.
as a modification of the present invention, between wheel band and the external wall of kiln, be provided with some backing plates, the left end of backing plate is positioned at outside wheel band, with the external wall welding of kiln, and on it, be welded with wheel and be with corresponding the second pin block of a side, the right-hand member of backing plate is also positioned at outside wheel band, and is welded with respectively the first pin block on the same excircle of these end both sides, kiln body; The second pin block of adjacent backing plate is welded on the right-hand member of this backing plate, the right-hand member of backing plate and the welding of kiln body, and two first pin blocks of adjacent backing plate are welded on respectively the both sides up and down of this backing plate.
the kiln body length of roasting rotary furnace of the present invention is 1.5～15m, φ 3～6m.
tumble each parts control synchronous, sequential working of discharge, temperature element etc. of power supply, air feed, air feed, screwdriven, screw feeder, the hydraulic pressure that the electric control system of roasting rotary furnace of the present invention meets roasting rotary furnace requires.
compared with prior art beneficial effect of the present invention.
roasting rotary furnace of the present invention not only, for the roasting reduction of low ore grade nickel iron charge, high-grade nickel sulfide ore, also can be used for processing scrap battery, zinc oxide ore etc.; Both can process solid, also can process melt non-ferrous metal material; Tool has the following advantages.
(1) spiral comes and goes Quick uniform feed: in roasting rotary furnace kiln body of the present invention, carry fast, be uniformly distributed material (mineral aggregate or coal) by controlling helixes feed equipment and running gear, while stopping feed, screw(-type) feeder retreats to roasting rotary furnace feeder side, thereby avoids high temperature (1250～1350 ℃) scaling loss helixes feed equipment in roasting rotary furnace.In addition, rationally dose counterweight, guarantee running gear even running; Take into full account the wiring problem of movable motor, simple and easy wire structures is set.This is simple in structure, small and exquisite, is convenient to processing and fabricating; Chute feed-type is more in the past easy to use, and result of use is good.
(2) the hydraulic pressure marker method of tumbling: roasting rotary furnace equipment level of the present invention arranges, for material in kiln is discharged smoothly, adopts the hydraulic pressure discharge of tumbling.According to the short and small feature of this roasting rotary furnace kiln body, by kiln body, transmission mechanism, supporting and positioning mechanism, base certain angle of together tumbling, after material is discharged, steadily reset.Hydraulic tipping gear has adopted two hydraulic cylinder synchronous motions, has guaranteed smooth start and stop and the reset of roasting rotary furnace.And existing calcining kiln kiln body length, complex structure, for single process, single product, be not suitable for the hydraulic pressure discharge of tumbling; The hydraulic tipping gear of roasting rotary furnace of the present invention can, by electrical control, improve the automatization level of equipment greatly, and therefore efficiency is high.
(3) recovery time is controlled: because the kiln body of roasting rotary furnace of the present invention is comparatively short and small, and good leak tightness; Therefore, material is in the recovery time of kiln intracoelomic cavity, can be according to different tests, different technological requirement, and appropriateness regulates, and realizes the variation of recovery time by the electric program of artificial adjusting, and its recovery time of the material reducing in roasting rotary furnace is controlled.And existing calcining kiln kiln body is long, is roughly divided into drying belt, gives the torrid zone, point ungird, clinkering zone (or reaction zone); Material is in the time that zone of reduction reacts, and because kiln volume is larger, larger as the changes of contents of the CO gas of reducing agent, the recovery time also changes thereupon, is difficult to grasp.
(4) thermal efficiency is high: roasting rotary furnace equipment only has micro-gap between kiln hood cover body and kiln body, and compare with existing rotary kiln device in this gap, very little; Therefore, the heat of being supplied with by burner is almost all for the reduction roasting of material, and thermal loss is few, and the thermal efficiency is high.
(5) scope of application is wide, cost is low: roasting rotary furnace of the present invention is not only for the roasting reduction of low ore grade nickel iron charge, high-grade nickel sulfide ore, also can be used for processing scrap battery, lead-zinc etc., both can process solid, also can process melt non-ferrous metal material, greatly improve the comprehensive utilization ratio of industrial equipment; And whole occupation area of equipment is little, volume is little, structure is comparatively simple, and therefore cost is low, particularly applicable for middle-size and small-size non-ferrous metals processing enterprise.
Accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, roasting rotary furnace of the present invention is described further.
fig. 1 is structural representation of the present invention.
wherein, 1 is that hydraulic tipping gear, 2 is that base, 3 is that transmission mechanism, 4 is that supporting and positioning mechanism, 501 is that solid discharging opening, 502 is that kiln body discharge end, 503 is that melt discharging opening, 5 is that kiln body, 504 is that kiln body feeding end, 6 is that kiln hood cover body, 602 is that burner, 7 is feeder.
fig. 2 is the left view of Fig. 1.
wherein, 601 is that the first support, 603 is that temperature measuring equipment, 604 is that flame import, 505 is that latch plate, 605 is that feeding-passage, 606 is that cover body, 607 is that exhaust opening, 608 is flue.
fig. 3 is the cutaway view of bowing of Fig. 1.
wherein, 506 is that observation panel, 507 is that kiln body entrance, 8 is that gap, 710 is that feed hopper, 712 is that feed motor, 715 is that track, 714 is the second support.
fig. 4 is the structural representation of feeder of the present invention.
wherein, 701 is that feed opening, 702 is that heat-resisting bearing, 703 is that temperature resistant encapsulation cover, 704 is that lead limit switch, 705 is that screw feeder bar, 706 is that helixes feed equipment, 707 is that running gear, 708 is that driven pulley, 709 is that feed support, 711 is that driving wheel, 713 is movable motor.
fig. 5 is the A-A cutaway view of Fig. 4.
wherein, 716 is that screw feeder cylinder, 717 is counterweight.
fig. 6 is the structural representation of hydraulic tipping gear of the present invention.
wherein, 101 for foundation bolt, 102 for the bearing that is fixedly hinged, 103 for be movably hinged bearing, 104 for push rod, 105 be hydraulic cylinder, 106 be basic melt pit.
fig. 7 is the working state figure of roasting rotary furnace of the present invention while tumbling discharge.
wherein, 301 for elastic plug tooth-type coupler, 302 for gear support, 303 for gear, 304 for variable-frequency motor, 305 for reducing motor, 401 for flat carrier roller, 402 for have along carrying roller, 403 for along, 404 for carrying roller bearing, 9 for screw-down type grease cup, 10 for fire brick layer, 508 for clay gun, 509 for round steel part, 510 for gear ring, 511 for wheel band, 610 be exhanst gas outlet.
fig. 8 is the structural representation that the present invention takes turns band.
wherein, 512 is that the second pin block, 513 is that the first pin block, 514 is backing plate.
fig. 9 is the structural representation of kiln body discharge end.
The specific embodiment
be illustrated in figure 1 the structural representation of roasting rotary furnace of the present invention.The present invention includes kiln body 5, on the base 2 of kiln body 5, be provided with supporting and positioning mechanism 4 and transmission mechanism 3, the below of base 2 is provided with hydraulic tipping gear 1, kiln body discharge end 502 is provided with solid discharging opening 501 and melt discharging opening 503, kiln body feeding end 504 sides are provided with the kiln hood cover body 6 with burner 602, and the side of kiln hood cover body 6 is feeder 7.
the outside end enclosure structure that adopts orthodrome transition of kiln body 5, adopts this structure to avoid material efflorescence in the process of kiln body 5 interior reduction roastings, is conducive to reduction roasting.The gear ring 510 of hoop on the outer wall at kiln body 5 stack shell middle parts is meshed with the gear 303 of transmission mechanism 3, gear 303 is fixed on base 2 by gear support 302, and be connected with variable-frequency motor 304 with the reductor 305 on base 2 successively by elastic plug tooth-type coupler 301, drive the rotation of kiln body 5; Adopt variable-frequency motor 304 to make roasting rotary furnace kiln body of the present invention 5 rotating speeds adjustable at 0.5～2.3r/min, thereby meet the needs of different tests technological process.Operating temperature in kiln body 5 is conventionally more than 1000 ℃; kiln body 5 inwalls are lined with fire brick layer 10; approximately 100 ℃ of left and right of temperature of kiln body 5 outer walls; for avoid kiln body 5 outer walls directly with the contacting of supporting and positioning mechanism 4; protection kiln body 5 structures, on kiln body 5 outer walls, the both sides of gear ring 510 are also provided with wheel and are with 511.
described supporting and positioning mechanism 4 comprises flat carrier roller 401 and has along carrying roller 402, two groups of flat carrier rollers 401 and two groups have the both sides that are arranged on symmetrically respectively kiln body 5 bottoms along carrying roller 402, flat carrier roller 401 is fixed on base 2 by carrying roller bearing 404 with having along carrying roller 402, supports the total weight of kiln body 5; Idler bearing adopts Sliding bush structure, and bearing shell adopts cast zinc alloy material.The wheel of kiln body feeding end 504 is with 511 to be arranged on flat carrier roller 401, and the wheel of kiln body discharge end 502 is with 511 to be arranged on along on carrying roller 402; Have along carrying roller 402 be in the both sides of carrying roller with along 403, the wheel of kiln body discharge end 502 with 511 be limited in along carrying roller 402 two along 403 between, prevent that kiln body 5 is in the time that discharging is tumbled, kiln body 5 glides in supporting and positioning mechanism 4.Top at gear support 302 and two carrying roller bearings 404 is provided with screw-down type grease cup 9, regularly oil injecting lubricating, and lubricated employing between gear ring 510 and gear 303 manual lubricating system at regular time and quantity meets the functional requirement of testing equipment.
base 2 bottoms of kiln body discharge end 502, the axial bilateral symmetry of kiln body 5 be provided with two groups of bearings 102 that are fixedly hinged, the opposite side of base 2 is connected with the push rod 104 of below hydraulic tipping gear 1 by being movably hinged bearing 103.Being movably hinged bearing 103 is also that line is provided with two groups symmetrically centered by kiln body 5 is axial, and correspondingly, hydraulic tipping gear 1 is also two groups.
be illustrated in figure 2 the structural representation of the kiln hood cover body 6 of roasting rotary furnace of the present invention.In conjunction with Fig. 1, kiln hood cover body 6 comprises the first support 601 and the cover body 606 that is fixed on the first support 601 tops, and cover body 606 is the circular cover bodies 606 that formed by the thick Plate Welding of 6mm, its inner lining refractory block layer 10.On the cover body 606 relative with kiln body feeding end 504, be provided with the flame import 604 of exhaust opening 607 and the burner 602 corresponding with kiln body entrance 507, the feeding-passage 605 that traverses cover body 606 communicates with exhaust opening 607, feeding-passage 605 can pass through the screw feeder cylinder 716 of helixes feed equipment 706, makes screw feeder cylinder 716 can stretch into kiln body 5 inner chambers.Exhaust opening 607 communicates with the flue 608 in cover body 606, and flue 608 is connected with the off-gas recovery treatment system with centrifugal exhauster by the exhanst gas outlet 610 of cover body 606 sides.Bottom at cover body 606 is also provided with temperature measuring equipment 603, and temperature measuring equipment 603 is to be made up of temperature thermocouple and mounting flange, is used for measuring the reduction temperature of kiln body 5 inside.
in addition, from Fig. 2, it can also be seen that, gear ring 510 adopts some tangent spring-plates 505 and the outer wall of kiln body 5 to weld with the connected mode of kiln body 5, has greatly alleviated labour intensity.Adopt latch plate 505 to connect damping capaicty good, do not affect the service life of this place's refractory brick.
be illustrated in figure 3 the cutaway view of bowing of Fig. 1.Can see, the helixes feed equipment 706 of the feeder 7 successively feeding-passage 605 on cover body 606, kiln body entrance 507 stretches into kiln body 5 inner chambers, and the minimum range between the temperature resistant encapsulation cover 703 of helixes feed equipment 706 ends and kiln body discharge end 502 intracavity sidewalls is 700mm.The burner 602 being fixed on cover body 606 adopts oil-gas two-way burner 602, to meet different material roasting, and the needs of different process method; Burner 602 is 12.5 ° with the angle that kiln body 5 axis are, and this angle can make burner 602 spray into flame in kiln body 5 directly and the material bed abundant heating of kiln body 5 inner bottom part, is more conducive to the reduction reaction of kiln body 5 interior materials.Between kiln body 5 and cover body 606, be provided with gap 8, gap 8 is 40～50mm; Its effect is: 1) make to keep suitable distance between the kiln body 5 of rotation and fixing cover body 606, prevent that it from causing equipment attrition because of friction; 2) by the adjusting of this gap 8, make the suitable micro-negative pressure atmosphere of the inner formation of roasting rotary furnace kiln body 5 of the present invention, this atmosphere is the best atmosphere of material reduction.Also just because of there is slight clearance 8 between kiln body 5 and cover body 606, so the waste gas of kiln body 5 inner chambers only has minute quantity to enter outside atmosphere from gap 8, major part enters off-gas recovery treatment system, is collected, and process and reclaim by off-gas recovery treatment system; Not only environmental protection, and effectively recycle the valuable rare metal dust in waste gas.
be respectively as shown in Figure 4 and Figure 5 structural representation and its side direction view of feeder 7 of the present invention.Described feeder 7 comprises helixes feed equipment 706, running gear 707 and the second support 714, and the track 715 of running gear 707 is between first support 601 and the second support 714 of cover body 606, and end fixed thereon; The top of track 715 is helixes feed equipment 706, one end of screw feeder cylinder 716 is provided with feed motor 712, the one end that can stretch into kiln body 5 is provided with temperature resistant encapsulation cover 703, the built-in screw feeder bar 705 being driven by feed motor 712 of screw feeder cylinder 716, screw feeder bar 705 is arranged on the heat-resisting bearing 702 in temperature resistant encapsulation cover 703; Screw feeder cylinder 716 has feed hopper 710 in feed motor 712 ends, and screw feeder cylinder 716 has in temperature resistant encapsulation cover 703 ends the feed opening 701 that Open Side Down.Between screw feeder cylinder 716 and track 715, be provided with feed support 709, screw feeder cylinder 716 is fixed on feed support 709 upper ends; The both sides of feed support 709 one end are relatively provided with one group of driven pulley 708, the both sides of the other end are relatively provided with one group of driving wheel 711, driving wheel 711 is driven by the movable motor 713 being fixed on feed support 709 sides, on the feed support 709 of the relative opposite side of movable motor 713, be provided with counterweight 717, so that feed support 709 balances, stable.On track 715 both sides at kiln hood cover body 6 places, be also respectively arranged with lead limit switch 704, guarantee helixes feed equipment 706 regulation stroke in walk.
be illustrated in figure 6 the structural representation of hydraulic tipping gear 1 of the present invention.Hydraulic tipping gear 1 comprises that two 102, two of bearings that are fixedly hinged are movably hinged bearing 103, and two hydraulic cylinders 105; Two bearings 102 that are fixedly hinged are arranged on the bottom of the axial both sides of kiln body 5, kiln body discharge end 502 bases 2 symmetrically, the bottom welding of bearing 102 one end and base 2 is fixedly hinged, the other end closes by 101 of foundation bolts that are embedded in advance in basis, adopts bearing pin to connect between pivoting support; Two are movably hinged bearing 103 and are arranged on symmetrically the below at the axial both sides of kiln body 5, base 2 middle parts, be movably hinged the bottom welding of bearing 103 one end and base 2, the other end is connected with the push rod 104 of hydraulic cylinder 105 by bearing pin, and the bottom of hydraulic cylinder 105 is by being embedded in advance the foundation bolt 101 of cheating fundamentally in 106 closing.When two groups of hydraulic tipping gears 1 have guaranteed that roasting rotary furnace kiln body 5 of the present invention is tumbled discharge, stably synchronous operation.The angle that hydraulic tipping gear 1 can be tumbled is 10～15 °.
the hydraulic cylinder 105 of hydraulic tipping gear 1 of the present invention is arranged in basic melt pit 106, to reduce the shared spatial altitude of roasting rotary furnace equipment of the present invention, reduces investment.If hydraulic cylinder 105 arranges on the ground, certainly will need improve the height of base front end fulcrum simultaneously, make the structure of whole roasting rotary furnace and relevant device all will do to change, can cause unnecessary waste.For another example fruit hydraulic cylinder 105 is set directly on base 2, and fulcrum also should be above base 2 so, and the parts of tumbling are kiln bodies 5; But kiln body 5 is cylindrical shape, if supporting kiln body 5, a hydraulic cylinder 105 overturns, obviously stable not, at least will in kiln body 5 both sides, two or more be set symmetrically, if will reach steady upset, arranging between hydraulic cylinder 105 and kiln body 5 understood more complicated; And if upset kiln body 5 can make gear ring 510 separate with the gear 303 of transmission mechanism 3, the machine error causing due to the bad control of precision in the time resetting, tends to make occur using the problem that engagement is not good for a long time between gear, has potential safety hazard.
working state figure when being illustrated in figure 7 roasting rotary furnace of the present invention and tumbling discharge, the working state figure during in conjunction with the feed of Fig. 1, use procedure of the present invention is as follows.
in the time that low-grade laterite nickel ore material is carried out to reduction roasting, the variable-frequency motor 304 in transmission mechanism 3 starts, 5 entrys into service of kiln body, and first burner 602 adopts diesel oil heat supply, and temperature measuring equipment 603 monitor temperatures are in the scope of technological requirement.Start the movable motor 713 of running gear 707 and the feed motor 712 of helixes feed equipment 706, material enters from feed hopper 710 in the screw feeder cylinder 716 of helixes feed equipment 706, feed opening 701 by screw feeder bar 705 forward end is carried, movable motor 713 drives driving wheel 711, driving wheel 711 drives the helixes feed equipment 706 on feed support 709, feeding-passage 605 on cover body 606, exhaust opening 607, kiln body entrance 507, enter kiln body 5 inner chambers successively; When screw feeder cylinder 716 ends of helixes feed equipment 706 have just entered kiln body 5 inner chambers, start by feed opening 701 blankings, and material constantly enters kiln body 5 inner chambers by feed opening 701 in helixes feed equipment 706 moves ahead process, when driven pulley 708 walks to lead limit switch 704 places, now the temperature resistant encapsulation cover 703 of helixes feed equipment 706 and the spacing of kiln body 5 intracavity sidewalls arrive minimum range, movable motor 713 drives driving wheel 711 to travel backward, and the screw feeder cylinder 716 of helixes feed equipment 706 is extracted out from kiln body 5 inner chambers; According to technique needs, in screw feeder cylinder 716 extractions, can continue feed, and once back and forth feed is inadequate, repeatedly reciprocal feed.Stop after feed process, helixes feed equipment 706 retreats to kiln hood cover body 6 sides.Under the temperature conditions of 1250～1350 ℃, reduction 80～100min, material, after kiln body 5 inner chambers fully reduce, is manually opened the discharge door of the solid discharging opening 501 of kiln body discharge end 502; Hydraulic tipping gear 1 is started working, and base 2 overturns forward as fulcrum take the bearing 102 that is fixedly hinged, and transmission mechanism 3 and supporting and positioning mechanism 4 on base 2 are tumbled with kiln body 5 simultaneously, and material, from solid discharging opening 501 rows, proceeds to water quenching technology; Hydraulic tipping gear 1 resets, and closes the discharge door of solid discharging opening 501, starts the reduction roasting of next group material.
in the time that low-grade lead-zinc material is carried out to reduction roasting, or process when scrap battery, the process of the feed course of work and upset kiln body 5 is the same.Just, in the time of discharge, manually knock round steel part 509, by the clay gun 508 arranging, melt material is discharged from melt discharging opening 503.
be illustrated in figure 8 roasting rotary furnace of the present invention and take turns the structural representation with 511.For making the kiln body 5 of roasting rotary furnace high temperature resistant, indeformable and normal operation under hot conditions; Wheel be with 511 and kiln body 5 outer walls between be provided with some backing plates 514, the left end of backing plate 514 is positioned at wheel and is with outside 511, with the 5 outer wall welding of kiln body, and on it, be welded with wheel and be with corresponding the second pin block 512 of 511 1 sides, the right-hand member of backing plate 514 is also positioned at wheel to be with outside 511, and is welded with respectively the first pin block 513 on the same excircle of these end both sides, kiln body 5; The second pin block 512 of adjacent backing plate 514 is welded on the right-hand member of this backing plate 514, and the right-hand member of backing plate 514 and kiln body 5 weld, and two first pin blocks 513 of adjacent backing plate 514 are welded on respectively the both sides up and down of this backing plate 514.Pass through said structure, its advantage is: 1) that one end of backing plate 514 is welded with kiln body 5, the other end of backing plate 514 is not fixedly connected with kiln body 5, by the first pin block 513 being set by backing plate 514 axial location, the second pin block 512 is installed on backing plate 514, is played the effect of fast pulley band 511; Its installation method is simple, greatly improves the installation effectiveness of equipment.2) the fixing one end of backing plate 514 and kiln body 5 is arranged alternately in wheel with 511 both sides, and the second pin block 512 on it is equally also arranged alternately in wheel with 511 both sides; Because the thickness of the first pin block 513 is less than the thickness of backing plate 514, change wheel at needs and be with 511 o'clock, only need wheel to unload with the second pin block 512 of 511 1 sides, can be with 511 to pull down on wheel, be with 511 therefore be easy to change wheel.
be illustrated in figure 9 the structural representation of roasting rotary furnace kiln body discharge end 502 of the present invention.Because solid material discharging is easier to, therefore a solid discharging opening 501 is set on kiln body discharge end 502; And comparatively difficulty of liquid material discharging, therefore two melt discharging openings 503 are set on kiln body discharge end 502, two melt discharging openings 503 and fixing discharging opening 501 coexist on a circumference, this circumference is the bottom surface circumference of kiln body 5 cylindric inner chambers, and two melt discharging openings 503 are 120 ° with the angle that circle center line connecting is.The middle part of kiln body discharge end 502 is also provided with observation panel 506, just, due to the switching of observation panel 506, therefore the 3rd melt discharging opening 503 can not be set again.
Claims (5)
1. a roasting rotary furnace, comprise kiln body (5), on the base (2) of kiln body (5), be provided with supporting and positioning mechanism (4) and transmission mechanism (3), it is characterized in that: the below of base (2) is provided with hydraulic tipping gear (1), kiln body discharge end (502) is provided with solid discharging opening (501) and melt discharging opening (503), kiln body feeding end (504) side is provided with the have burner kiln hood cover body (6) of (602), and the side of kiln hood cover body (6) is feeder (7);
Described kiln body (5) inner lining refractory block layer (10), the upper end of kiln body discharge end (502) intracavity sidewall is provided with solid discharging opening (501), lower end is provided with melt discharging opening (503), and the sidewall middle part of kiln body discharge end (502) inner chamber is provided with observation panel (506); The outside end enclosure structure that adopts orthodrome transition of kiln body (5); Gear ring (510) on kiln body (5) outer wall is meshed with the gear (303) of transmission mechanism (3), and gear (303) is connected by the same variable-frequency motor of reductor (305) (304); On kiln body (5) outer wall, the both sides of gear ring (510) are also provided with wheel band (511); Described supporting and positioning mechanism (4) comprises flat carrier roller (401) and has along carrying roller (402), it is upper that the wheel band (511) of kiln body feeding end (504) is arranged on flat carrier roller (401), and the wheel band (511) of kiln body discharge end (502) has been arranged on along on carrying roller (402); The bottom of the base (2) of kiln body discharge end (502) has the bearing of being fixedly hinged (102), and the opposite side of base (2) is connected with the push rod (104) of below hydraulic tipping gear (1) by being movably hinged bearing (103);
Described gear ring (510) adopts some tangent spring-plates (505) and the outer wall of kiln body (5) to weld with the connected mode of kiln body (5);
Described hydraulic tipping gear (1) comprises two bearings that are fixedly hinged (102), and two are movably hinged bearing (103), and two hydraulic cylinders (105); Two bearings that are fixedly hinged (102) are arranged on the axially bottom of both sides, kiln body discharge end (502) base (2) of kiln body (5) symmetrically, the bottom welding of bearing (102) one end and base (2) is fixedly hinged, the other end, by being embedded in advance foundation bolt (101) in basis closing, adopts bearing pin to connect between pivoting support; Two are movably hinged bearing (103) and are arranged on symmetrically the axially below at both sides, base (2) middle part of kiln body (5), be movably hinged the bottom welding of bearing (103) one end and base (2), the other end is connected with the push rod (104) of hydraulic cylinder (105) by bearing pin, and the bottom of hydraulic cylinder (105) is by being embedded in advance the foundation bolt (101) of cheating fundamentally in (106) closing;
Described kiln hood cover body (6) comprises the cover body (606) of the inner lining refractory block layer (10) on the first support (601) and the first support (601) top, on cover body (606), be provided with the flame import (604) of exhaust opening (607) and the burner (602) corresponding with the kiln body entrance (507) of kiln body feeding end (504), the flue (608) of exhaust opening (607) in cover body (606) is connected with off-gas recovery treatment system.
2. roasting rotary furnace as claimed in claim 1, is characterized in that: between kiln body (5) and cover body (606), be provided with gap (8), gap (8) are 40～50mm.
3. roasting rotary furnace as claimed in claim 1, it is characterized in that: feeder (7) comprises helixes feed equipment (706), running gear (707) and the second support (714), track (715) one end of running gear (707) is arranged on the second support (714), the other end of running gear (707) track (715) has lead limit switch (704), and is arranged on the first support (601); Feed support (709) both sides that are fixed on helixes feed equipment (706) below are respectively arranged with a group of being positioned on track (715) and have driving wheel (711) and one group of driven pulley (708) of movable motor (713); Helixes feed equipment (706) comprises screw feeder cylinder (716), the distolateral connected feed motor (712) of same screw feeder cylinder (716) that is provided with of entrance of screw feeder cylinder (716), arrival end top is feed hopper (710), and the below of the port of export is feed opening (701).
4. roasting rotary furnace as claimed in claim 3, it is characterized in that: screw feeder cylinder (716) one end of helixes feed equipment (706) is provided with feed motor (712), the one end that can stretch into kiln body (5) is provided with temperature resistant encapsulation cover (703), the built-in screw feeder bar (705) being driven by feed motor (712) of screw feeder cylinder (716), the other end of screw feeder bar (705) is arranged on the heat-resisting bearing (702) in temperature resistant encapsulation cover (703); Screw feeder cylinder (716) between driven pulley (708) and temperature resistant encapsulation cover (703) and screw feeder bar (705) adopt heat resisting steel.
5. roasting rotary furnace as claimed in claim 4, it is characterized in that: between wheel band (511) and kiln body (5) outer wall, be provided with some backing plates (514), the left end of backing plate (514) is positioned at outside wheel band (511), weld with kiln body (5) outer wall, and on it, be welded with and take turns band (511) one corresponding the second pin blocks of side (512), the right-hand member of backing plate (514) is also positioned at outside wheel band (511), and is welded with respectively the first pin block (513) on the same excircle of these end both sides, kiln body (5); Second pin block (512) of adjacent backing plate (514) is welded on the right-hand member of this backing plate (514), the right-hand member of backing plate (514) and kiln body (5) welding, two first pin blocks (513) of adjacent backing plate (514) are welded on respectively the both sides up and down of this backing plate (514).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286057.3A CN102798287B (en) | 2012-08-13 | 2012-08-13 | Roasting rotary furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286057.3A CN102798287B (en) | 2012-08-13 | 2012-08-13 | Roasting rotary furnace |
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| CN102798287A CN102798287A (en) | 2012-11-28 |
| CN102798287B true CN102798287B (en) | 2014-05-14 |
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| CN201210286057.3A Expired - Fee Related CN102798287B (en) | 2012-08-13 | 2012-08-13 | Roasting rotary furnace |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103115486B (en) * | 2012-12-28 | 2015-06-17 | 中国神华能源股份有限公司 | Rotary kiln material feeding device and rotary kiln material feeding method |
| CN105651042A (en) * | 2016-03-09 | 2016-06-08 | 江西稀有稀土金属钨业集团有限公司 | Rotary furnace, flue inlet of rotary furnace and method for prolonging service life |
| CN106989597B (en) * | 2017-03-01 | 2019-03-08 | 张素平 | A kind of chemical industry smelting furnace facilitating discharging |
| JP7256693B2 (en) * | 2019-03-04 | 2023-04-12 | 川崎重工業株式会社 | Processing system for waste lithium-ion batteries |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324401A (en) * | 2007-06-15 | 2008-12-17 | 西安华英实业有限公司 | Horizontal type smelting furnace |
| CN101845766A (en) * | 2010-04-30 | 2010-09-29 | 中国科学院广州能源研究所 | Method and device for gasifying pulping black liquor and reclaiming directly causticized alkali |
| CN201611208U (en) * | 2009-12-31 | 2010-10-20 | 中国恩菲工程技术有限公司 | Nickel-containing material calcination device |
| DE202012101139U1 (en) * | 2012-03-29 | 2012-04-13 | Sug Schmelz- Und Giessanlagen Gmbh & Co. Kg | Rotary furnace |
| CN202792922U (en) * | 2012-08-13 | 2013-03-13 | 中国有色（沈阳）冶金机械有限公司 | Calcined short kiln |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE166340C1 (en) * | ||||
| CA1255914A (en) * | 1987-12-22 | 1989-06-20 | Ghyslain Dube | Recovery of non-ferrous metals from dross |
| JPH07294148A (en) * | 1994-04-28 | 1995-11-10 | Toyota Autom Loom Works Ltd | Controlling method for rotary melting furnace |
-
2012
- 2012-08-13 CN CN201210286057.3A patent/CN102798287B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324401A (en) * | 2007-06-15 | 2008-12-17 | 西安华英实业有限公司 | Horizontal type smelting furnace |
| CN201611208U (en) * | 2009-12-31 | 2010-10-20 | 中国恩菲工程技术有限公司 | Nickel-containing material calcination device |
| CN101845766A (en) * | 2010-04-30 | 2010-09-29 | 中国科学院广州能源研究所 | Method and device for gasifying pulping black liquor and reclaiming directly causticized alkali |
| DE202012101139U1 (en) * | 2012-03-29 | 2012-04-13 | Sug Schmelz- Und Giessanlagen Gmbh & Co. Kg | Rotary furnace |
| CN202792922U (en) * | 2012-08-13 | 2013-03-13 | 中国有色（沈阳）冶金机械有限公司 | Calcined short kiln |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平7-294148A 1995.11.10 |
| 周惠群.水泥煅烧技术及设备（回转窑篇）.《水泥煅烧技术及设备（回转窑篇）》.武汉理工大学出版社,2006,第60-80页. * |
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