CN103922355B - A kind of device and preparation technology producing triphane - Google Patents
A kind of device and preparation technology producing triphane Download PDFInfo
- Publication number
- CN103922355B CN103922355B CN201410161151.5A CN201410161151A CN103922355B CN 103922355 B CN103922355 B CN 103922355B CN 201410161151 A CN201410161151 A CN 201410161151A CN 103922355 B CN103922355 B CN 103922355B
- Authority
- CN
- China
- Prior art keywords
- triphane
- preheating cylinder
- grades
- preheating
- 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.)
- Active
Links
Landscapes
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a kind of device and the preparation technology that produce triphane, this device comprises the coarse particles suspended preheater, rotary kiln, the material distributing valve and without leakage material castor formula cooler that connect successively, step of preparation process comprises the preheating of coarse particles suspended preheater, rotary kiln baking transition, seperating vale sub-material and without the cooling of leakage material castor formula cooler, the present invention makes full use of rotary kiln exhaust gas preheating by the design of coarse particles suspended preheater, reduces energy consumption; Effectively can be separated by granularity kiln discharge triphane by material distributing valve, ensure that whole system safety operates smoothly; By best cooling performance can be reached without leaking material castor formula cooler; the heat that kiln discharge triphane is taken away is made full use of simultaneously; to reduce system energy consumption; present invention achieves triphane large-scale production, middle control automatic operation control; thus greatly improve labour productivity, there is good economic benefit and environmental protection benefit.
Description
Technical field
The present invention relates to triphane production field, specifically refer to a kind of device and the preparation technology that produce triphane.
Background technology
Triphane, before carrying out acidification, needs to carry out roasting process transition, namely changes into beta spodumene from α triphane.Current domestic conventional triphane roasting technology transition adopts mostly separately rotary kiln baking to transform; Wherein triphane roasting requires that roasting time is long transition, be not suitable for fast burning suddenly to burn, and the length of the clinkering zone of rotary kiln is relevant with burner flame field degree setting range, rotary kiln with the outer suspended preheater of kiln is generally the 8-10 of rotary kiln diameter doubly, and dry method hollow rotary kiln is generally the 5-7 of rotary kiln diameter doubly.In conjunction with this feature, under the prerequisite that kiln footpath, gradient are certain, in order to ensure roasting time transition, suitably can only reduce the reduction of rotary kiln rotating speed, the rolling number of times of triphane material in rotary kiln and lift height all will reduce, thus decrease material and contact with high temperature gas flow and the probability of the heat transfer by conduction carried out and transmission of heat by convection, so adopt existing independent rotary kiln baking transformation technology to carry out triphane calcination process, the production capacity of single cover system can not be increased substantially.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 overcoming prior art; there is provided a kind of and produce triphane device and preparation technology; rotary kiln waste heat is made full use of by three grades of suspension preheating systems; reduce energy consumption; greatly improve labor productivity; realize environmental protection to produce, there is good economic benefit and environmental protection benefit.
The present invention is achieved through the following technical solutions: a kind of device producing triphane, comprises the coarse particles suspended preheater, rotary kiln, the material distributing valve and without leakage material castor formula cooler that connect successively.
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 with airduct straight section successively; 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, the airduct straight section of described one-level preheating cylinder, secondary preheating cylinder, three grades of preheating cylinders is 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, with without leaking, the lower discharge port of described material distributing valve housing expects that castor formula cooler opening for feed is connected.
Upper body, cooling castor bed, lower frame, grog toothed roll crusher is comprised 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 bottom material castor formula cooler end, 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 for triphane particle continuous print can be pushed calcining section from feed zone, carry out triphane burning transition, in order to fast triphane particle be pushed 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, material granularity is divided to be 400 × 400mm, here carry out preferably to the material of sub-material grid and specification, directly enter material distributing valve from the rotary kiln section of burning till β type triphane out, and carry out sub-material according to triphane specification in sub-material grid, triphane temperature altitude to be separated 1050 DEG C, sub-material grid adopts high temperature steel casting craft to make, as preferably, by guarantee sub-material grid to the thermotolerance of high-temperature triphane; A point material granularity for sub-material grid is 400 × 400mm, ensures being conducive to through triphane being crushed to below 25mm without the grog toothed roll crusher leaked in material castor formula cooler.
Produce a preparation technology for triphane, it is characterized in that: comprise the following steps:
A, the preheating of coarse particles suspended preheater: triphane raw ore is placed in three grades of whirlwind pre-heating systems carry out pulverizing, preheating, make 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: be delivered in rotary kiln by the product that step a obtains, rotary kiln is heated to 1200 ~ 1350 DEG C, makes triphane change into beta spodumene by α triphane, controls at 1050 DEG C by beta spodumene kiln discharge temperature;
C, material distributing valve sub-material: the product that step b obtains is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction and reclaims without the cooling of leakage material castor formula cooler, and granularity is greater than 400 × 400mm and is separated by material distributing valve, bypass process;
D, without leaking the cooling of material castor formula cooler: step c is obtained granularity and is less than 400 × 400mm beta spodumene and is 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, be delivered in one-level preheating cylinder airduct straight section by triphane raw ore, after spreading plate is pulverized, carry 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, heat exchange is carried out with three grades of preheating cylinder flue gases after being pulverized by spreading plate, 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 by spreading plate and enter flue gas three grades of preheating cylinder airduct straight sections from blanking cone 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 controlled by wind-speed adjusting device, and described each airduct wind speed is for being 20 ~ 22m/s.
Further, expect that freezing air that the import of castor formula cooler blanking framework cooling air blasts carries out changing thermogenetic high temperature air and enters rotary kiln as secondary air and participate in calcining in triphane process of cooling with without leaking in described steps d.
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 realizes making full use of rotary kiln exhaust gas by three grades of whirlwind pre-heating systems and carries out suspension preheating, reduce energy consumption, wind-speed adjusting device wherein in coarse particles suspended preheater is arranged, can realize adjusting wind speed in preheating cylinder airduct straight section at different levels, 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 carry out preferably to sub-material barrier sub-material size specification, thus effectively realize being separated according to granularity the triphane going out rotary kiln, ensure whole system safe operation, meet finished product triphane granularity requirements simultaneously.
(3) the present invention is by without the setting of leaking material castor formula cooler, makes the cooling performance that triphane reaches best, fully recycles simultaneously, thus 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, cool four processing steps without leaking material castor formula cooler; improve beta spodumene Quality and yield; be conducive to realizing continuous scale operation; automatic operation control; thus greatly raise labour productivity; reduce energy consumption, realize environmental protection and produce, there is good economic benefit and environmental protection benefit.
Accompanying drawing explanation
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 leakage 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 thereto, without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacement 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 producing triphane as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, comprise the coarse particles suspended preheater 1, rotary kiln 2, the material distributing valve 3 and without leakage material castor formula cooler 4 that connect successively.
Coarse particles suspended preheater 1 comprises the one-level preheating cylinder 1-1, 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 by airduct elbow with airduct straight section successively, the airduct straight section of described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3 is 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 connect successively kiln tail seal section 2-4, feed zone 2-1, calcining section 2-2 and the section of burning till 2-3, 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, with without leaking, the lower discharge port of described material distributing valve housing 3-1 expects that castor formula cooler 4 opening for feed is connected, described sub-material grid 3-2 is that high temperature steel cast forms, and a point material granularity is 400 × 400mm.
Upper body 4-1, cooling castor bed 4-2, lower frame 4-3, grog toothed roll crusher 4-4 is comprised 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 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 bottom material castor formula cooler 4 end, 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 coarse particles suspended preheater, 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, be delivered in one-level preheating cylinder 1-1 airduct straight section by Australian lithium concentrate, after spreading plate is pulverized, carry 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, heat exchange is carried out with three grades of preheating cylinder 1-3 flue gases after being pulverized by spreading plate 1-11, 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 by spreading plate 1-11 and enter flue gas three grades of preheating cylinder 1-3 airduct straight sections from blanking cone 1-4 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 blast velocity control to 20m/s, regulate one-level preheating cylinder by wind-speed adjusting device 1-12 in airduct straight section simultaneously, wind speed in secondary preheating cylinder and the airduct straight section set by three grades of preheating cylinders is to reach suspension preheating temperature,
B, rotary kiln baking makes the transition: be delivered in rotary kiln by the product that step a obtains, temperature is 380 DEG C, enter rotary kiln 2, by installing the adjustment of gradient and the rotation of rotary kiln self to rotary kiln 2, fast and continuously the feed zone 2-1 of triphane particle from rotary kiln is advanced to calcining section 2-2, while rotary kiln 2 rotates, triphane is at the calcining section 2-2 continuous heating to 1150 DEG C of rotary kiln, and enter the section of burning till 2-3, control temperature is being heated to 1200 DEG C, triphane changes into beta spodumene by α triphane, beta spodumene kiln discharge temperature is controlled at 1050 DEG C, triphane particle is from entering rotary kiln 2 to transition to β type kiln discharge, in kiln, stop total time is 240min,
C, material distributing valve sub-material: the product that step b obtains is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction and reclaims without cooling in leakage material castor formula cooler 4, and granularity is greater than 400 × 400mm and is separated by material distributing valve and carry out bypass process;
D, without leaking the cooling of material castor formula cooler: the granularity that step c obtains is less than 400 × 400mm beta spodumene and is delivered to and cools without in the cooling castor bed 4-2 leaked in material castor formula cooler 4, in triphane in cooling castor bed 4-2 and lower frame 4-3, cooling air import forces the freezing air blasted to carry out heat exchange fast, be cooled to envrionment temperature 0 DEG C, the grog toothed roll crusher 4-4 that cooled triphane is arranged bottom end pulverizes, after controlled fragmentation, triphane granularity is not more than 25mm, be triphane finished product, the freezing air wherein blasted through with the heat exchange of high temp. lithium pyroxene after form dust-laden high-temperature hot air, will as secondary air without the high temperature air leaking material castor formula cooler 4 hot junction, temperature be 500 DEG C enter in rotary kiln 2 participate in triphane roasting transition.
Embodiment 2:
The primary structure of the present embodiment, a kind of preparation facilities producing triphane as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, comprise the coarse particles suspended preheater 1, rotary kiln 2, the material distributing valve 3 and without leakage material castor formula cooler 4 that connect successively.
Coarse particles suspended preheater 1 comprises the one-level preheating cylinder 1-1, 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 with airduct straight section successively; 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 by airduct elbow with airduct straight section successively, the airduct straight section of described one-level preheating cylinder 1-1, secondary preheating cylinder 1-2, three grades of preheating cylinder 1-3 is 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 connect successively kiln tail seal section 2-4, feed zone 2-1, calcining section 2-2 and the section of burning till 2-3, 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, with without leaking, the lower discharge port of described material distributing valve housing 3-1 expects that castor formula cooler 4 opening for feed is connected, 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 coarse particles suspended preheater, 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, be delivered in one-level preheating cylinder 1-1 airduct straight section by Australian lithium concentrate, after spreading plate is pulverized, carry 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, heat exchange is carried out with three grades of preheating cylinder 1-3 flue gases after being pulverized by spreading plate 1-11, 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 by spreading plate 1-11 and enter flue gas three grades of preheating cylinder 1-3 airduct straight sections from blanking cone 1-4 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 blast velocity control to 22m/s, regulate one-level preheating cylinder by wind-speed adjusting device 1-12 in airduct straight section simultaneously, wind speed in secondary preheating cylinder and the airduct straight section set by three grades of preheating cylinders is to reach suspension preheating temperature,
B, rotary kiln baking makes the transition: be delivered in rotary kiln by the product that step a obtains, temperature is 380 DEG C, enter rotary kiln 2, by installing the adjustment of gradient and the rotation of rotary kiln self to rotary kiln 2, fast and continuously the feed zone 2-1 of triphane particle from rotary kiln is advanced to calcining section 2-2, while rotary kiln 2 rotates, triphane is at the calcining section 2-2 continuous heating to 1150 DEG C of rotary kiln, and enter the section of burning till 2-3, control temperature is being heated to 1350 DEG C, triphane changes into beta spodumene by α triphane, beta spodumene kiln discharge temperature is controlled at 1050 DEG C, triphane particle is from entering rotary kiln 2 to transition to β type kiln discharge, in kiln, stop total time is 240min,
C, material distributing valve sub-material: the product that step b obtains is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction and reclaims without cooling in leakage material castor formula cooler 4, and granularity is greater than 400 × 400mm and is separated by material distributing valve and carry out bypass process;
D, without leaking the cooling of material castor formula cooler: the granularity that step c obtains is less than 400 × 400mm beta spodumene and is delivered to and cools without in the cooling castor bed 4-2 leaked in material castor formula cooler 4, in triphane in cooling castor bed 4-2 and lower frame 4-3, cooling air import forces the freezing air blasted to carry out heat exchange fast, be cooled to envrionment temperature 0 DEG C, the grog toothed roll crusher 4-4 that cooled triphane is arranged bottom end pulverizes, after controlled fragmentation, triphane granularity is not more than 25mm, be triphane finished product, the freezing air wherein blasted through with the heat exchange of high temp. lithium pyroxene after form dust-laden high-temperature hot air, will as secondary air without the high temperature air leaking material castor formula cooler 4 hot junction, temperature be 650 DEG C enter in rotary kiln 2 participate in triphane roasting transition.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls into protection scope of the present invention.
Claims (8)
1. produce a device for triphane, it is characterized in that: comprise connect successively coarse particles suspended preheater (1), rotary kiln (2), material distributing valve (3) and without leakage material castor formula cooler (4), wherein:
Described coarse particles suspended preheater (1) comprises the one-level preheating cylinder (1-1) connected 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 with airduct straight section successively, 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 with airduct straight section successively, three grades of preheating cylinder (1-3) volute bottoms are 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 cylinder (1-3) volute blast inlets, be connected blanking cone (1-4) by airduct elbow with airduct straight section successively, 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),
The tubular structure that described rotary kiln (2) is kiln cylinder body inner steel lining refractory brick, it is to material distributing valve (3) direction gradient 3% ~ 3.5%, comprise connect successively kiln tail seal section (2-4), feed zone (2-1), calcining section (2-2) and the section of burning till (2-3), 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), with without leaking, the lower discharge port of described material distributing valve housing (3-1) expects that castor formula cooler (4) opening for feed 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 bottom material castor formula cooler (4) end, is provided with cooling air import in described lower frame (4-3).
2. a kind of device 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 producing triphane according to claim 1, is characterized in that: the sub-material grid (3-2) of described material distributing valve (3) forms for high temperature steel cast, divides a material granularity to be 400 × 400mm.
4. produce a preparation technology for triphane, it is characterized in that: comprise the following steps,
A, the preheating of coarse particles suspended preheater: triphane raw ore is placed in three grades of whirlwind pre-heating systems carry out pulverizing, preheating, and triphane suspension preheating to 380 DEG C; Granularity≤3mm, moisture≤1%;
B, rotary kiln baking make the transition: be delivered in rotary kiln by the product that step a obtains, rotary kiln is heated to 1200 ~ 1350 DEG C, makes triphane change into beta spodumene by α triphane, controls at 1050 DEG C by beta spodumene kiln discharge temperature;
C, material distributing valve sub-material: the product that step b obtains is delivered in material distributing valve, granularity is less than 400 × 400mm product introduction and reclaims without the cooling of leakage material castor formula cooler, and granularity is greater than 400 × 400mm and is separated by material distributing valve, bypass process;
D, without leaking the cooling of material castor formula cooler: the granularity that step c obtains is less than 400 × 400mm beta spodumene and is cooled to 0 ~ 65 DEG C, and be crushed to granularity by grog discaling roll pulverizer and be not more than 25mm finished product.
5. a kind of preparation technology producing 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, heat exchange is carried out with secondary preheating cylinder (1-2) flue gas after spreading plate is pulverized, 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), heat exchange is carried out with three grades of preheating cylinder (1-3) flue gases after being pulverized by spreading plate (1-11), three grades of preheating cylinder (1-3) flue-gas temperatures are 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 cylinder (1-3) airduct straight sections through secondary tremie pipe (1-8), pulverize afterwards by spreading plate (1-11) and enter flue gas three grades of preheating cylinder (1-3) airduct straight sections from blanking cone (1-4) 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 480-550 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. a kind of preparation technology producing triphane according to 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 producing triphane according to claim 4, is characterized in that: expect that freezing air that the import of castor formula cooler (4) lower frame (4-3) cooling air blasts carries out changing thermogenetic high temperature air and enters rotary kiln (2) as secondary air and participate in calcining in triphane process of cooling with without leaking in described steps d.
8. a kind of preparation technology producing triphane according to claim 4, it is characterized in that: described triphane raw ore is Australian lithium concentrate, by mass percentage, its chemical composition is: Li
2o:6%, Fe
2o
3: 0.59%, SiO
2: 65.19%, CaO:0.31%, Na
2o:0.05%, K
2o:0.30%, MgO:0.13%, Al
2o
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 CN103922355A (en) | 2014-07-16 |
| CN103922355B true 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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (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 |
| CN103204510B (en) * | 2013-04-24 | 2015-04-15 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN103922355A (en) | 2014-07-16 |
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 | |
| CN101570406A (en) | Calcination process of active lime | |
| 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 | |
| CN104359321B (en) | A kind of vertical cement chamotte cooler | |
| CN102180496A (en) | Device for producing alumina clinker by semi-dry process | |
| CN107337362A (en) | A kind of industry by-product gypsum calcinatory | |
| CN103193400A (en) | Temperature-controlled suspension roaster | |
| CN202016883U (en) | Device for producing alumina clinker in semidry method | |
| CN104359300B (en) | A kind of drying and calcining machining center | |
| CN106635111B (en) | A kind of biomass pyrolytic production liquid fuel co-producing bio charcoal system | |
| CN108585555A (en) | A kind of homogeneous calcining Preparation equipment of industrialization powder clinker and preparation method | |
| 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 | |
| CN204923825U (en) | Alumina shaft kiln is calcined to flaring formula circular section | |
| CN204265644U (en) | Heat storage type lime rotary kiln | |
| CN204286017U (en) | A kind of drying and calcining machining center | |
| CN204125383U (en) | The two thorax kiln of a kind of low power consumption | |
| CN204963590U (en) | Ceramic tile production line kiln quench zone afterheat recycling device | |
| CN202430018U (en) | Device for producing high-temperature alumina with circulating fluidized bed roaster | |
| CN104496207A (en) | Heat accumulating type lime rotary kiln | |
| CN100368297C (en) | Device for preparing aluminum oxide self-efflorescence grog by fusion method and preparation method thereof | |
| CN101382392A (en) | Calandria preheater | |
| 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 |