CN103922355A - Device for producing spodumene and preparation process - Google Patents
Device for producing spodumene and preparation process Download PDFInfo
- Publication number
- CN103922355A CN103922355A CN201410161151.5A CN201410161151A CN103922355A CN 103922355 A CN103922355 A CN 103922355A CN 201410161151 A CN201410161151 A CN 201410161151A CN 103922355 A CN103922355 A CN 103922355A
- Authority
- CN
- China
- Prior art keywords
- triphane
- preheating
- grades
- preheating cylinder
- airduct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a device for producing spodumene and a preparation process. The device comprises a coarse particle suspension preheater, a rotary kiln, a separating valve and a leakage-free grate type cooling machine which are sequentially connected. The preparation process comprises the steps of preheating by adopting the coarse particle suspension preheater, roasting and transforming by adopting the rotary kin, separating by adopting the separating valve, and cooling by adopting the leakage-free grate type cooling machine. According to the device, by designing the coarse particle suspension preheater, tail gas of the rotary kiln is fully utilized for preheating, thus the energy consumption is reduced; by adopting the separating valve, the spodumene discharged out from the kiln can be effectively separated, and the safe and smooth operation of the whole system is ensured; by adopting the leakage-free grate type cooling machine, an optimal cooling effect can be achieved, and heat carried away by the spodumene discharged out from the kiln is fully utilized, thus the energy consumption of the system is reduced. The device realizes large-scale production and central automatic operation control of the spodumene, thereby greatly increasing the labor productivity and being better in economic benefit and environment protection benefit.
Description
Technical field
The present invention relates to triphane production field, specifically refer to a kind of device and preparation technology who produces triphane.
Background technology
Triphane, carrying out before acidification, need to carry out roasting and process transition, changes into beta spodumene from α triphane.At present domestic conventional triphane roasting technology transition adopts mostly separately rotary kiln baking to transform; Wherein triphane roasting requires roasting time long transition, be not suitable for fast anxious burning of burning, and the length of the clinkering zone of rotary kiln is relevant with burner flame field degree setting range, doubly, and the 5-7 that dry method hollow rotary kiln is generally rotary kiln diameter doubly for the 8-10 that is generally rotary kiln diameter with the rotary kiln of the outer suspended preheater of kiln.In conjunction with this feature, under the certain prerequisite in kiln footpath, gradient, in order to ensure roasting time transition, can only suitably reduce the reduction of rotary kiln rotating speed, rolling number of times and the lift height of triphane material in rotary kiln all will reduce, thereby reduce that material contacts with high temperature gas flow and the heat transfer by conduction carried out and the probability of transmission of heat by convection, so adopt existing independent rotary kiln baking transformation technology to carry out triphane calcination process, can not increase substantially the production capacity of single cover system.Existing independent employing rotary kiln baking transformation technology simultaneously, the waste heat in rotary kiln waste gas and the rear triphane that makes the transition are taken away amount of heat and are not all recovered utilization, and energy consumption is very high.
Summary of the invention
The object of the invention is to: the above-mentioned defect that overcomes prior art; a kind of triphane device and preparation technology of producing is provided; make full use of rotary kiln waste heat by three grades of suspension preheating systems; reduce energy consumption; greatly improve labor productivity; realize environmental protection and produce, there is good economic benefit and environmental protection benefit.
The present invention is achieved through the following technical solutions: a kind of device of producing triphane, comprises coarse particles suspended preheater, rotary kiln, the material distributing valve connecting successively and expect castor formula cooler without leaking.
Coarse particles suspended preheater comprises the one-level preheating cylinder, secondary preheating cylinder, the three grades of preheating cylinders that connect successively, described one-level preheating cylinder, secondary preheating cylinder, three grades of preheating cylinders are equipped with volute, blast inlet, air outlet, airduct elbow and airduct straight section, described one-level preheating cylinder, volute bottom are connected with secondary preheating cylinder airduct straight section with one-level tremie pipe by one-level cone successively, and one-level preheating cylinder blast inlet is connected secondary preheating cylinder air outlet by airduct elbow successively with airduct straight section; Secondary preheating cylinder volute bottom is connected with three grades of preheating cylinder airduct straight sections with secondary tremie pipe by secondary cone successively, and secondary preheating cylinder volute blast inlet is connected three grades of preheating cylinder air outlets by airduct elbow successively with airduct straight section; Three grades of preheating cylinder volute bottoms are connected with blanking cone with three grades of tremie pipes by three grades of cones successively, three grades of preheating cylinder volute blast inlets, be connected blanking cone by airduct elbow with airduct straight section successively, on the airduct straight section of described one-level preheating cylinder, secondary preheating cylinder, three grades of preheating cylinders, be provided with spreading plate and wind-speed adjusting device.
Rotary kiln is the tubular structure of cylindrical shell inner steel lining refractory brick, it is to material distributing valve direction gradient 3%～3.5%, comprise the kiln tail seal section, feed zone, calcining section and the section of burning till that connect successively, described feed zone is connected with the blanking cone of coarse particles suspended preheater by kiln tail seal section, described rotary kiln also comprises kiln head cover, and described kiln head cover is connected with the upper feeding mouth of sub-material valve housing.
Material distributing valve comprises housing, sub-material grid, sub-material valve plate and YE, described sub-material grid is positioned at housing, and sub-material grid end is provided with sub-material valve plate, the fixed connection place of described sub-material valve plate and sub-material grid is provided with YE, and the lower discharge port of described material distributing valve housing is connected with expect castor formula cooler opening for feed without leakage.
Comprise upper body, cooling castor bed, lower frame, grog toothed roll crusher without leaking material castor formula cooler, described upper body is provided with opening for feed, described cooling castor berth is in expecting castor formula cooler stage casing without leaking, and cooling castor bed is provided with stick pusher, described grog toothed roll crusher is positioned at without leaking material castor formula cooler end bottom, is provided with cooling air import in described lower frame.
Further, described rotary kiln is 3.5% to material distributing valve direction gradient, triphane is in rotary kiln baking transformation process, by adjust rotary kiln installation gradient and and rotary kiln self constantly rotate, quick continuous triphane particle can be pushed to calcining section from feed zone, carry out triphane burning transition, in order fast triphane particle to be pushed to calcining section, the installation gradient of rotary kiln preferably tilts 3.5% to material distributing valve direction.
Further, the sub-material grid of described material distributing valve is that high temperature steel cast forms, dividing material granularity is 400 × 400mm, here the material to sub-material grid and specification are carried out preferably, directly enter material distributing valve, and carry out sub-material according to triphane specification from the rotary kiln section of burning till β type triphane out in sub-material grid, 1050 DEG C of triphane temperature altitudes to be separated, sub-material grid adopts high temperature steel casting craft to make, and as preferably, will ensure the thermotolerance of sub-material grid to high-temperature triphane; A point material granularity for sub-material grid is 400 × 400mm, ensures through triphane being crushed to below 25mm without the grog toothed roll crusher leaking in material castor formula cooler being conducive to.
A preparation technology who produces triphane, is characterized in that: comprise the following steps:
A, the preheating of coarse particles suspended preheater: triphane raw ore is placed in to three grades of whirlwind pre-heating systems are pulverized, preheating, makes triphane granularity be not more than 3mm, water content is not more than 1%, and triphane suspension preheating to 380 DEG C;
B, rotary kiln baking make the transition: the product that step a is obtained is delivered in rotary kiln, and rotary kiln is heated to 1200～1350 DEG C, makes triphane change into beta spodumene by α triphane, and beta spodumene kiln discharge temperature is controlled to 1050 DEG C;
C, material distributing valve sub-material: the product that step b is obtained is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction without leaking the cooling recovery of material castor formula cooler, and granularity is greater than 400 × 400mm and separates by material distributing valve, bypass processing;
D, without leaking, material castor formula cooler is cooling: step c is obtained to granularity and be less than 400 × 400mm beta spodumene and be cooled to 0～65 DEG C, and be crushed to granularity by grog discaling roll pulverizer and be not more than 25mm finished product.
Further, in step a, triphane raw ore suspension preheating step in coarse particles suspended preheater is:
I, triphane raw ore is delivered in one-level preheating cylinder airduct straight section, after spreading plate is pulverized, carries out heat exchange with secondary preheating cylinder flue gas, secondary preheating cylinder flue-gas temperature is 200～240 DEG C, and after heat exchange, triphane temperature is 100～120 DEG C;
The triphane particle that ii, step I obtain enters secondary preheating cylinder airduct straight section through one-level tremie pipe, after pulverizing by spreading plate, carry out heat exchange with three grades of preheating cylinder flue gases, three grades of preheating cylinder flue-gas temperatures are 340～380 DEG C, and after heat exchange, triphane temperature is 200～220 DEG C;
The triphane particle that iii, step I i obtain enters three grades of preheating cylinder airduct straight sections through secondary tremie pipe, pulverize afterwards and enter flue gas three grades of preheating cylinder airduct straight sections from blanking cone by spreading plate and carry out heat exchange, entering three grades of preheating cylinder airduct straight section flue-gas temperatures from blanking cone is 480～550 DEG C, after heat exchange, triphane temperature is 370～380 DEG C, and the triphane of three grades of preheating cylinder collections enters rotary kiln through three grades of tremie pipes and blanking cone successively.
Further, in described coarse particles suspended preheater pre-heating step, in coarse particles suspended preheater, each airduct straight section wind speed is by wind-speed adjusting device control, and described each airduct wind speed is for being 20～22m/s.
Further, in described steps d, in triphane process of cooling, change thermogenetic high temperature air with the freezing air blasting without the import of leakage material castor formula cooler blanking framework cooling air and enter rotary kiln participation calcining as secondary air.
Further, described triphane raw ore is Australian lithium concentrate, and by mass percentage, its chemical composition is: Li
20:6%, Fe
20
3: 0.59%, Si0
2: 65.19%, Ca0:0.31%, Na
20:0.05%, k
20:0.30%, MgO:0.13%, Ai
20
3: 20%, moisture content: 7.43%.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention is by the setting of coarse particles suspended preheater, it makes full use of rotary kiln exhaust gas by three grades of whirlwind pre-heating systems realizations and carries out suspension preheating, reduce energy consumption, the wherein wind-speed adjusting device setting in coarse particles suspended preheater, can realize wind speed in preheating cylinder airduct straight sections at different levels is adjusted, and then meet triphane particle and preheating cylinder flue gas heat exchange demand.
(2) the present invention is by the setting of material distributing valve, in material distributing valve structure, sub-material grid adopts high temperature steel cast to form, and divide material granularity specification to carry out preferably to sub-material barrier, thereby effectively realize the triphane that rotary kiln is separated according to granularity, ensure whole system safe operation, meet finished product triphane granularity requirements simultaneously.
(3) setting of material castor formula cooler is leaked in the present invention by nothing, makes triphane reach best cooling performance, fully recycles simultaneously, thereby reduce system energy consumption by going out the heat that rotary kiln triphane takes away.
(4) in the present invention triphane raw ore through the preheating of coarse particles suspended preheater, rotary kiln baking transition, material distributing valve sub-material, expect cooling four processing steps of castor formula cooler without leaking; improve beta spodumene Quality and yield; being conducive to realize continuous large-scale produces; automatic operation control; thereby greatly raise labour productivity; reduce energy consumption, realize environmental protection and produce, there is good economic benefit and environmental protection benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is coarse particles suspended preheater structural representation of the present invention;
Fig. 3 is rotary structure schematic diagram of the present invention;
Fig. 4 is material distributing valve structural representation of the present invention;
Fig. 5 is that the present invention is without leaking material castor formula Refrigerator structure schematic diagram;
Wherein: 1-coarse particles suspended preheater, 1-1-one-level preheating cylinder, 1-2-secondary preheating cylinder, 1-3-tri-grade preheating cylinder, 1-4-blanking cone, 1-5-one-level cone, 1-6-one-level tremie pipe, 1-7-secondary cone, 1-8-secondary tremie pipe, 1-9-tri-grade cone, 1-10-tri-grade tremie pipe, 1-11-spreading plate, 1-12-wind-speed adjusting device, 2-rotary kiln, 2-1-feed zone, 2-2-calcining section, 2-3-the section of burning till, 2-4-kiln tail seal section, 2-5-kiln head cover, 3-material distributing valve, 3-1-housing, 3-2-sub-material grid, 3-3-sub-material valve plate, 3-4-YE, 4-without leaking material castor formula cooler, 4-1-upper body, 4-2-cooling castor bed, 4-3-lower frame, 4-4-grog toothed roll crusher, 4-5-stick pusher.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this, without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacements and change, all should comprise within the scope of the invention.
Embodiment 1:
The primary structure of the present embodiment, a kind of preparation facilities of producing triphane as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, comprise the coarse particles suspended preheater 1 that connects successively, rotary kiln 2, material distributing valve 3 and without leaking material castor formula cooler 4.
Coarse particles suspended preheater 1 comprises one-level preheating cylinder 1-1, the secondary preheating cylinder 1-2, the three grades of preheating cylinder 1-3 that connect successively, described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3 are equipped with volute, blast inlet, air outlet, airduct elbow and airduct straight section, described one-level preheating cylinder 1-1 volute bottom is connected with secondary preheating cylinder 1-2 airduct straight section with one-level tremie pipe 1-6 by one-level cone 1-5 successively, and one-level preheating cylinder 1-1 blast inlet is connected secondary preheating cylinder 1-2 air outlet by airduct elbow successively with airduct straight section; Secondary preheating cylinder 1-2 volute bottom is connected with three grades of preheating cylinder 1-2 airduct straight sections with secondary tremie pipe 1-8 by secondary cone 1-7 successively, and secondary preheating cylinder 1-2 volute blast inlet is connected secondary preheating cylinder 1-2 air outlet by airduct elbow successively with airduct straight section; Three grades of preheating cylinder 1-3 volute bottoms are connected with blanking cone 1-4 with three grades of tremie pipe 1-10 by three grades of cone 1-9 successively, three grades of preheating cylinder 1-3 volute blast inlets, be connected blanking cone 1-4 with airduct straight section by airduct elbow successively, on the airduct straight section of described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3, be provided with spreading plate 1-11 and wind-speed adjusting device 1-12.
Rotary kiln 2 is the tubular structure of kiln cylinder body inner steel lining refractory brick, it is to material distributing valve direction gradient 3.5%, comprise kiln tail seal section 2-4, the feed zone 2-1, calcining section 2-2 and the section of the burning till 2-3 that connect successively, described feed zone 2-1 is connected with the blanking cone 1-4 of coarse particles suspended preheater 1 by kiln tail seal section 2-4, described rotary kiln 2 also comprises kiln head cover 2-5, and described kiln head cover 2-5 is connected with the upper feeding mouth of the housing 3-1 of material distributing valve 3.
Material distributing valve 3 comprises housing 3-1, sub-material grid 3-2, sub-material valve plate 3-3 and YE 3-4, described sub-material grid 3-2 is positioned at housing 3-1, and sub-material grid 3-2 end is provided with sub-material valve plate 3-3, the fixed connection place of described sub-material valve plate 3-3 and sub-material grid 3-2 is provided with YE 3-4, the lower discharge port of described material distributing valve housing 3-1 is connected with expect castor formula cooler 4 opening for feeds without leakage, described sub-material grid 3-2 is that high temperature steel cast forms, and a point material granularity is 400 × 400mm.
Comprise upper body 4-1, cooling castor bed 4-2, lower frame 4-3, grog toothed roll crusher 4-4 without leaking material castor formula cooler 4, described upper body 4-1 is provided with opening for feed, described cooling castor bed 4-2 is positioned at without leaking material castor formula cooler 4 stage casings, and cooling castor bed 4-2 is provided with stick pusher 4-5, described grog toothed roll crusher 4-4 is positioned at without leaking material castor formula cooler 4 end bottoms, is provided with cooling air import in described lower frame 4-3.
Produce a preparation technology for triphane, described processing step is: a, the preheating of coarse particles suspended preheater: Australian lithium concentrate is placed in to coarse particles suspended preheater, and by mass percentage, its chemical composition is: Li
20:6%, Fe
20
3: 0.59%, Si0
2: 65.19%, Ca0:0.31%, Na
20:0.05%, k
20:0.30%, MgO:0.13%, Ai
20
3: 20%, moisture: 7.43%.Suspension preheating step is:
I, Australian lithium concentrate is delivered in one-level preheating cylinder 1-1 airduct straight section, after spreading plate is pulverized, carries out heat exchange with secondary preheating cylinder 1-2 flue gas, secondary preheating cylinder 1-2 flue-gas temperature is 200 DEG C, and after heat exchange, triphane temperature is 100 DEG C;
The triphane particle that ii, step I obtain enters secondary preheating cylinder 1-2 airduct straight section through one-level tremie pipe 1-6, after pulverizing by spreading plate 1-11, carry out heat exchange with three grades of preheating cylinder 1-3 flue gases, three grades of preheating cylinder 1-3 flue-gas temperatures are 340 DEG C, and after heat exchange, triphane temperature is 220 DEG C;
Iii, the triphane particle that step I i obtains enters three grades of preheating cylinder 1-3 airduct straight sections through secondary tremie pipe 1-8, pulverize afterwards and enter flue gas three grades of preheating cylinder 1-3 airduct straight sections from blanking cone 1-4 by spreading plate 1-11 and carry out heat exchange, entering three grades of preheating cylinder 1-3 airduct straight section flue-gas temperatures from blanking cone 1-4 is 480 DEG C, after heat exchange, triphane temperature is 380 DEG C, the triphane of three grades of preheating cylinder 1-3 collections enters rotary kiln 2 through three grades of tremie pipe 1-10 and blanking cone 1-4 successively, wherein in coarse particles suspended preheater 1, in each airduct straight section, wind speed controls to 20m/s, can regulate one-level preheating cylinder by wind-speed adjusting device 1-12 in airduct straight section simultaneously, wind speed in the set airduct straight section of secondary preheating cylinder and three grades of preheating cylinders is to reach suspension preheating temperature,
B, rotary kiln baking makes the transition: the product that step a is obtained is delivered in rotary kiln, temperature is 380 DEG C, enter rotary kiln 2, by rotary kiln 2 being installed to the adjustment of gradient and the rotation of rotary kiln self, fast and continuously triphane particle is advanced to calcining section 2-2 from the feed zone 2-1 of rotary kiln, when rotary kiln 2 rotates, triphane is at the calcining section 2-2 of rotary kiln continuous heating to 1150 DEG C, and enter the section of burning till 2-3, control temperature and be heated to 1200 DEG C, triphane changes into beta spodumene by α triphane, beta spodumene kiln discharge temperature is controlled to 1050 DEG C, triphane particle is from entering rotary kiln 2 to making the transition to β type kiln discharge, in kiln, stopping total time is 240min,
C, material distributing valve sub-material: the product that step b is obtained is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction without leaking cooling recovery in material castor formula cooler 4, and granularity is greater than 400 × 400mm and is separated and carried out bypass processing by material distributing valve;
D, without leaking, material castor formula cooler is cooling: the granularity that step c is obtained is less than 400 × 400mm beta spodumene and is delivered to without carrying out in the cooling castor bed 4-2 leaking in material castor formula cooler 4 cooling, in triphane in cooling castor bed 4-2 and lower frame 4-3, cooling air import forces the freezing air blasting to carry out fast heat exchange, be cooled to 0 DEG C of envrionment temperature, the grog toothed roll crusher 4-4 that cooled triphane arranges through end bottom pulverizes, after controlled fragmentation, triphane granularity is not more than 25mm, be triphane finished product, the freezing air wherein blasting through with the heat exchange of high temp. lithium pyroxene after form dust-laden high-temperature hot air, to serve as secondary air without the high temperature air that leaks material castor formula cooler 4 hot junctions, temperature is 500 DEG C and enters and in rotary kiln 2, participate in triphane roasting transition.
Embodiment 2:
The primary structure of the present embodiment, a kind of preparation facilities of producing triphane as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, comprise the coarse particles suspended preheater 1 that connects successively, rotary kiln 2, material distributing valve 3 and without leaking material castor formula cooler 4.
Coarse particles suspended preheater 1 comprises one-level preheating cylinder 1-1, the secondary preheating cylinder 1-2, the three grades of preheating cylinder 1-3 that connect successively, described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3 are equipped with volute, blast inlet, air outlet, airduct elbow and airduct straight section, described one-level preheating cylinder 1-1 volute bottom is connected with secondary preheating cylinder 1-2 airduct straight section with one-level tremie pipe 1-6 by one-level cone 1-5 successively, and one-level preheating cylinder 1-1 blast inlet is connected secondary preheating cylinder 1-2 air outlet by airduct elbow successively with airduct straight section; Secondary preheating cylinder 1-2 volute bottom is connected with secondary preheating cylinder 1-2 airduct straight section with secondary tremie pipe 1-8 by secondary cone 1-7 successively, and secondary preheating cylinder 1-2 volute blast inlet is connected three grades of preheating cylinder 1-2 air outlets by airduct elbow successively with airduct straight section; Three grades of preheating cylinder 1-3 volute bottoms are connected with blanking cone 1-4 with three grades of tremie pipe 1-10 by three grades of cone 1-9 successively, three grades of preheating cylinder 1-3 volute blast inlets, be connected blanking cone 1-4 with airduct straight section by airduct elbow successively, on the airduct straight section of described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3, be provided with spreading plate 1-11 and wind-speed adjusting device 1-12.
Rotary kiln 2 is the tubular structure of kiln cylinder body inner steel lining refractory brick, it is to sub-material direction gradient 3.0%, comprise kiln tail seal section 2-4, the feed zone 2-1, calcining section 2-2 and the section of the burning till 2-3 that connect successively, described feed zone 2-1 is connected with the blanking cone 1-4 of coarse particles suspended preheater 1 by kiln tail seal section 2-4, described rotary kiln 2 also comprises kiln head cover 2-5, and described kiln head cover 2-5 is connected with the upper feeding mouth of the housing 3-1 of material distributing valve 3.
Material distributing valve 3 comprises housing 3-1, sub-material grid 3-2, sub-material valve plate 3-3 and YE 3-4, described sub-material grid 3-2 is positioned at housing 3-1, and sub-material grid 3-2 end is provided with sub-material valve plate 3-3, the fixed connection place of described sub-material valve plate 3-3 and sub-material grid 3-2 is provided with YE 3-4, the lower discharge port of described material distributing valve housing 3-1 is connected with expect castor formula cooler 4 opening for feeds without leakage, described sub-material grid 3-2 is that high temperature steel cast forms, and a point material granularity is 400 × 400mm.
Produce a preparation technology for triphane, described processing step is: a, the preheating of coarse particles suspended preheater: Australian lithium concentrate is placed in to coarse particles suspended preheater, and by mass percentage, its chemical composition is: Li
20:6%, Fe
20
3: 0.59%, Si0
2: 65.19%, Ca0:0.31%, Na
20:0.05%, k
20:0.30%, MgO:0.13%, Ai
20
3: 20%, moisture: 7.43%, suspension preheating step is:
I, Australian lithium concentrate is delivered in one-level preheating cylinder 1-1 airduct straight section, after spreading plate is pulverized, carries out heat exchange with secondary preheating cylinder 1-2 flue gas, secondary preheating cylinder 1-2 flue-gas temperature is 240 DEG C, and after heat exchange, triphane temperature is 100 DEG C;
The triphane particle that ii, step I obtain enters secondary preheating cylinder 1-2 airduct straight section through one-level tremie pipe 1-6, after pulverizing by spreading plate 1-11, carry out heat exchange with three grades of preheating cylinder 1-3 flue gases, three grades of preheating cylinder 1-3 flue-gas temperatures are 380 DEG C, and after heat exchange, triphane temperature is 220 DEG C;
Iii, the triphane particle that step I i obtains enters three grades of preheating cylinder 1-3 airduct straight sections through secondary tremie pipe 1-8, pulverize afterwards and enter flue gas three grades of preheating cylinder 1-3 airduct straight sections from blanking cone 1-4 by spreading plate 1-11 and carry out heat exchange, entering three grades of preheating cylinder 1-3 airduct straight section flue-gas temperatures from blanking cone 1-4 is 550 DEG C, after heat exchange, triphane temperature is 380 DEG C, the triphane of three grades of preheating cylinder 1-3 collections enters rotary kiln 2 through three grades of tremie pipe 1-10 and blanking cone 1-4 successively, wherein in coarse particles suspended preheater 1, in each airduct straight section, wind speed controls to 22m/s, can regulate one-level preheating cylinder by wind-speed adjusting device 1-12 in airduct straight section simultaneously, wind speed in the set airduct straight section of secondary preheating cylinder and three grades of preheating cylinders is to reach suspension preheating temperature,
B, rotary kiln baking makes the transition: the product that step a is obtained is delivered in rotary kiln, temperature is 380 DEG C, enter rotary kiln 2, by rotary kiln 2 being installed to the adjustment of gradient and the rotation of rotary kiln self, fast and continuously triphane particle is advanced to calcining section 2-2 from the feed zone 2-1 of rotary kiln, when rotary kiln 2 rotates, triphane is at the calcining section 2-2 of rotary kiln continuous heating to 1150 DEG C, and enter the section of burning till 2-3, control temperature and be heated to 1350 DEG C, triphane changes into beta spodumene by α triphane, beta spodumene kiln discharge temperature is controlled to 1050 DEG C, triphane particle is from entering rotary kiln 2 to making the transition to β type kiln discharge, in kiln, stopping total time is 240min,
C, material distributing valve sub-material: the product that step b is obtained is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction without leaking cooling recovery in material castor formula cooler 4, and granularity is greater than 400 × 400mm and is separated and carried out bypass processing by material distributing valve;
D, without leaking, material castor formula cooler is cooling: the granularity that step c is obtained is less than 400 × 400mm beta spodumene and is delivered to without carrying out in the cooling castor bed 4-2 leaking in material castor formula cooler 4 cooling, in triphane in cooling castor bed 4-2 and lower frame 4-3, cooling air import forces the freezing air blasting to carry out fast heat exchange, be cooled to 0 DEG C of envrionment temperature, the grog toothed roll crusher 4-4 that cooled triphane arranges through end bottom pulverizes, after controlled fragmentation, triphane granularity is not more than 25mm, be triphane finished product, the freezing air wherein blasting through with the heat exchange of high temp. lithium pyroxene after form dust-laden high-temperature hot air, to serve as secondary air without the high temperature air that leaks material castor formula cooler 4 hot junctions, temperature is 650 DEG C and enters and in rotary kiln 2, participate in triphane roasting transition.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification, equivalent variations that every foundation technical spirit of the present invention is done above embodiment, all fall into protection scope of the present invention.
Claims (8)
1. a device of producing triphane, is characterized in that: comprises coarse particles suspended preheater (1), rotary kiln (2), the material distributing valve (3) connecting successively and expects castor formula cooler (4) without leaking, wherein:
Described coarse particles suspended preheater (1) comprises the one-level preheating cylinder (1-1) connecting successively, secondary preheating cylinder (1-2), three grades of preheating cylinders (1-3), described one-level preheating cylinder (1-1), secondary preheating cylinder (1-2), three grades of preheating cylinders (1-3) are equipped with volute, blast inlet, air outlet, airduct elbow and airduct straight section, described one-level preheating cylinder (1-1) volute bottom is connected with secondary preheating cylinder (1-2) airduct straight section with one-level tremie pipe (1-6) by one-level cone (1-5) successively, one-level preheating cylinder (1-1) blast inlet is connected secondary preheating cylinder (1-2) air outlet by airduct elbow successively with airduct straight section, secondary preheating cylinder (1-2) volute bottom is connected with three grades of preheating cylinders (1-2) airduct straight section with secondary tremie pipe (1-8) by secondary cone (1-7) successively, and secondary preheating cylinder (1-2) volute blast inlet is connected secondary preheating cylinder (1-2) air outlet by airduct elbow successively with airduct straight section, three grades of preheating cylinders (1-3) volute bottom is connected with blanking cone (1-4) with three grades of tremie pipes (1-10) by three grades of cones (1-9) successively, three grades of preheating cylinders (1-3) volute blast inlet, be connected blanking cone (1-4) with airduct straight section by airduct elbow successively, on the airduct straight section of described one-level preheating cylinder (1-1), secondary preheating cylinder (1-2), three grades of preheating cylinders (1-3), be provided with spreading plate (1-11) and wind-speed adjusting device (1-12),
Described rotary kiln (2) is the tubular structure of kiln cylinder body inner steel lining refractory brick, it is to material distributing valve (3) direction gradient 3%～3.5%, comprise the kiln tail seal section (2-4), feed zone (2-1), calcining section (2-2) and the section of burning till (2-3) that connect successively, described feed zone (2-1) is connected with the blanking cone (1-4) of coarse particles suspended preheater (1) by kiln tail seal section (2-4), described rotary kiln (2) also comprises kiln head cover (2-5), and described kiln head cover (2-5) is connected with the upper feeding mouth of the housing (3-1) of material distributing valve (3);
Described material distributing valve (3) comprises housing (3-1), sub-material grid (3-2), sub-material valve plate (3-3) and YE (3-4), described sub-material grid (3-2) is positioned at housing (3-1), and sub-material grid (3-2) end is provided with sub-material valve plate (3-3), described sub-material valve plate (3-3) is provided with YE (3-4) with the fixed connection place of sub-material grid (3-2), and the lower discharge port of described material distributing valve housing (3-1) leaks material castor formula cooler (4) opening for feed with nothing and is connected;
Described nothing is leaked material castor formula cooler (4) and is comprised upper body (4-1), cooling castor bed (4-2), lower frame (4-3), grog toothed roll crusher (4-4), described upper body (4-1) is provided with opening for feed, described cooling castor bed (4-2) is positioned at without leaking material castor formula cooler (4) stage casing, and cooling castor bed (4-2) is provided with stick pusher (4-5), described grog toothed roll crusher (4-4) is positioned at without leaking material castor formula cooler (4) end bottom, in described lower frame (4-3), is provided with cooling air import.
2. a kind of device of producing triphane according to claim 1, is characterized in that: described rotary kiln (2) is 3.5% to material distributing valve (3) direction gradient.
3. a kind of device of producing triphane according to claim 1, is characterized in that: the sub-material grid (3-2) of described material distributing valve (3) is poured into a mould and formed for high temperature steel, and a point material granularity is 400 × 400mm.
4. a preparation technology who produces triphane, is characterized in that: comprises the following steps,
A, the preheating of coarse particles suspended preheater: triphane raw ore is placed in to three grades of whirlwind pre-heating systems are pulverized, preheating, and triphane suspension preheating to 380 DEG C; Granularity≤3mm, moisture≤1%;
B, rotary kiln baking make the transition: the product that step a is obtained is delivered in rotary kiln, and rotary kiln is heated to 1200～1350 DEG C, makes triphane change into beta spodumene by α triphane, and beta spodumene kiln discharge temperature is controlled to 105 DEG C;
C, material distributing valve sub-material: the product that step b is obtained is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction without leaking the cooling recovery of material castor formula cooler, and granularity is greater than 400 × 400mm and separates by material distributing valve, bypass processing;
D, without leaking, material castor formula cooler is cooling: the granularity that step c is obtained is less than 400 × 400mm beta spodumene and is cooled to 0～65 DEG C, and is crushed to granularity by grog discaling roll pulverizer and is not more than 25mm finished product.
5. a kind of preparation technology who produces triphane according to claim 4, is characterized in that: in step a, in triphane raw ore, in coarse particles suspended preheater, suspension preheating step is:
I, triphane raw ore is delivered in one-level preheating cylinder (1-1) airduct straight section, after pulverizing, spreading plate carries out heat exchange with secondary preheating cylinder (1-2) flue gas, secondary preheating cylinder (1-2) flue-gas temperature is 200～240 DEG C, and after heat exchange, triphane temperature is 100～120 DEG C;
The triphane particle that ii, step I obtain enters secondary preheating cylinder (1-2) airduct straight section through one-level tremie pipe (1-6), after pulverizing by spreading plate (1-11), carry out heat exchange with three grades of preheating cylinders (1-3) flue gas, three grades of preheating cylinders (1-3) flue-gas temperature is 340～380 DEG C, and after heat exchange, triphane temperature is 200～220 DEG C;
Iii, the triphane particle that step I i obtains enters three grades of preheating cylinders (1-3) airduct straight section through secondary tremie pipe (1-8), pulverize afterwards and enter flue gas three grades of preheating cylinders (1-3) airduct straight section from blanking cone (1-4) by spreading plate (1-11) and carry out heat exchange, entering three grades of preheating cylinders (1-3) airduct straight section flue-gas temperature from blanking cone (1-4) is 480-550 DEG C, after heat exchange, triphane temperature is 370～380 DEG C, the triphane that three grades of preheating cylinders (1-3) are collected enters rotary kiln (2) through three grades of tremie pipes (1-10) and blanking cone (1-4) successively.
6. according to a kind of preparation technology who produces triphane described in claim 4 or 5, it is characterized in that: in described coarse particles suspended preheater pre-heating step, in coarse particles suspended preheater (1), each airduct straight section wind speed is controlled by wind-speed adjusting device (1-22), and described each airduct wind speed is for being 20～22m/s.
7. a kind of preparation technology who produces triphane according to claim 4, is characterized in that: in described steps d, in triphane process of cooling, change thermogenetic high temperature air with the freezing air blasting without the import of leakage material castor formula cooler (4) blanking framework (4-3) cooling air and enter rotary kiln (2) participation calcining as secondary air.
8. a kind of preparation technology who produces triphane according to claim 4, is characterized in that: described triphane raw ore is Australian lithium concentrate, by mass percentage, its chemical composition is: Li
20:6%, Fe
20
3: 0.59%, Si0
2: 65.19%, Ca0:0.31%, Na
20:0.05%, k
20:0.30%, MgO:0.13%, Ai
20
3: 20%, moisture: 7.43%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161151.5A CN103922355B (en) | 2014-04-22 | 2014-04-22 | A kind of device and preparation technology producing triphane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161151.5A CN103922355B (en) | 2014-04-22 | 2014-04-22 | A kind of device and preparation technology producing triphane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103922355A true CN103922355A (en) | 2014-07-16 |
| CN103922355B CN103922355B (en) | 2016-04-13 |
Family
ID=51140792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410161151.5A Active CN103922355B (en) | 2014-04-22 | 2014-04-22 | A kind of device and preparation technology producing triphane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103922355B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154662A (en) * | 2015-09-09 | 2015-12-16 | 四川卡森科技有限公司 | Rare earth mineral powder calcination decomposition systems and processes thereof |
| CN107628627A (en) * | 2017-10-16 | 2018-01-26 | 福州大学 | A kind of method of natural spodumene circulation roasting crystal formation conversion |
| CN108425006A (en) * | 2017-12-27 | 2018-08-21 | 攀枝花兴辰钒钛有限公司 | Stockline is broken in the calcining of spodumene concentrate |
| CN112619856A (en) * | 2021-01-05 | 2021-04-09 | 宁都县赣锋锂业有限公司 | Spodumene roasting material crushing device and method |
| CN113023739A (en) * | 2021-03-17 | 2021-06-25 | 合肥水泥研究设计院有限公司 | Spodumene powder suspension preheating calcination crystal form conversion process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2049059C1 (en) * | 1993-05-18 | 1995-11-27 | Институт химии твердого тела и переработки минерального сырья | METHOD FOR PRODUCTION OF β-SPODUMENE |
| JPH1179730A (en) * | 1997-09-01 | 1999-03-23 | Chichibu Onoda Cement Corp | Production of beta-spodumene superfine particle |
| CN1640816A (en) * | 2004-01-16 | 2005-07-20 | 北京奥凯元科技发展有限公司 | Method for preparing quality beta-type spodumene |
| CN103204510A (en) * | 2013-04-24 | 2013-07-17 | 成都正远机电设备有限公司 | Spodumene roasting transformation method |
| CN203428540U (en) * | 2013-07-16 | 2014-02-12 | 怀宁上峰水泥有限公司 | Equivalent material distributing valve for large flow powder material |
-
2014
- 2014-04-22 CN CN201410161151.5A patent/CN103922355B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2049059C1 (en) * | 1993-05-18 | 1995-11-27 | Институт химии твердого тела и переработки минерального сырья | METHOD FOR PRODUCTION OF β-SPODUMENE |
| JPH1179730A (en) * | 1997-09-01 | 1999-03-23 | Chichibu Onoda Cement Corp | Production of beta-spodumene superfine particle |
| CN1640816A (en) * | 2004-01-16 | 2005-07-20 | 北京奥凯元科技发展有限公司 | Method for preparing quality beta-type spodumene |
| CN103204510A (en) * | 2013-04-24 | 2013-07-17 | 成都正远机电设备有限公司 | Spodumene roasting transformation method |
| CN203428540U (en) * | 2013-07-16 | 2014-02-12 | 怀宁上峰水泥有限公司 | Equivalent material distributing valve for large flow powder material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154662A (en) * | 2015-09-09 | 2015-12-16 | 四川卡森科技有限公司 | Rare earth mineral powder calcination decomposition systems and processes thereof |
| CN105154662B (en) * | 2015-09-09 | 2017-12-26 | 四川卡森科技有限公司 | Rare earth miberal powder Roasting Decomposition system and its technique |
| CN107628627A (en) * | 2017-10-16 | 2018-01-26 | 福州大学 | A kind of method of natural spodumene circulation roasting crystal formation conversion |
| CN108425006A (en) * | 2017-12-27 | 2018-08-21 | 攀枝花兴辰钒钛有限公司 | Stockline is broken in the calcining of spodumene concentrate |
| CN108425006B (en) * | 2017-12-27 | 2023-12-29 | 攀枝花兴辰钒钛有限公司 | Spodumene concentrate calcination breaking line |
| CN112619856A (en) * | 2021-01-05 | 2021-04-09 | 宁都县赣锋锂业有限公司 | Spodumene roasting material crushing device and method |
| CN113023739A (en) * | 2021-03-17 | 2021-06-25 | 合肥水泥研究设计院有限公司 | Spodumene powder suspension preheating calcination crystal form conversion process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103922355B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103922355B (en) | A kind of device and preparation technology producing triphane | |
| CN104211425B (en) | Method of comprehensive utilization and the process system thereof of rotary kiln high temperature sludge ball is gone out in kiln-process phosphoric acid technique | |
| CN102180496B (en) | Device for producing alumina clinker by semi-dry process | |
| CN101570406A (en) | Calcination process of active lime | |
| CN106907931A (en) | Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln | |
| CN102393140A (en) | Suspension type automatic blanking vertical and horizontal dual-purpose heat accumulation energy-saving reduction furnace | |
| CN103803567B (en) | Continuous production device and production technique thereof are brightened in black talc calcining | |
| CN203768043U (en) | Roasting transformation, distributing and cooling-recovery production device of spodumene | |
| CN107337362A (en) | A kind of industry by-product gypsum calcinatory | |
| CN202016883U (en) | Device for producing alumina clinker in semidry method | |
| CN107628627A (en) | A kind of method of natural spodumene circulation roasting crystal formation conversion | |
| CN108585555B (en) | Industrial powder clinker homogeneous calcination preparation equipment and preparation method | |
| CN102288022B (en) | Sleeve-type gas-burning shaft kiln | |
| CN201680734U (en) | Novel vertical pre-heater | |
| CN106635111B (en) | A kind of biomass pyrolytic production liquid fuel co-producing bio charcoal system | |
| CN202511622U (en) | Device using carbide slag to manufacture cement | |
| CN107879365A (en) | A kind of system and method that aluminum oxide is produced using desiliconization flyash sintering process | |
| CN207973684U (en) | A kind of preparation facilities producing aluminium oxide lime | |
| CN204125385U (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN203642689U (en) | Combustion furnace | |
| CN202430018U (en) | Device for producing high-temperature alumina with circulating fluidized bed roaster | |
| CN204963590U (en) | Ceramic tile production line kiln quench zone afterheat recycling device | |
| CN113443842B (en) | Light-burned magnesium production device and production method | |
| CN105753348B (en) | A kind of production technology of Indonesia's bituminous rock tailing particles nsp kiln | |
| CN203728589U (en) | Continuous production device for whitening black talc through calcination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |