CN205933958U - Calcination device of useless phosphor powder - Google Patents

Calcination device of useless phosphor powder Download PDF

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Publication number
CN205933958U
CN205933958U CN201620790327.8U CN201620790327U CN205933958U CN 205933958 U CN205933958 U CN 205933958U CN 201620790327 U CN201620790327 U CN 201620790327U CN 205933958 U CN205933958 U CN 205933958U
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China
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cyclone cylinder
level
heat exchange
fluorescent material
exchange pipeline
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CN201620790327.8U
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Chinese (zh)
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许开华
鲁习金
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Jiangxi Green Recycling Industry Co.,Ltd.
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Jiangxi Green Eco-Manufacture Resource Cycle Co Ltd
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Abstract

The utility model provides a calcination device of useless phosphor powder, including the suspension pre -heater, roasting kiln and suspension cooler, the suspension pre -heater preheats a whirlwind section of thick bamboo including the A heat transfer pipeline that is used for the useless phosphor powder of suspension heating and with the gas -solid separates A heat transfer pipeline being used for of being connected, the roasting kiln includes kiln hood and kiln tail, the kiln tail is equipped with feed inlet and air outlet, the kiln hood is equipped with the discharge gate, the air outlet and the A heat transfer pipeline of kiln tail are connected, a hot flue gas for $facing A trades hot piping roasting kiln calcination in -process and produces, preheat the bottom and feed inlet intercommunication of a whirlwind section of thick bamboo, so that gas -solid separation obtain preheat after useless phosphor powder carry to the roasting kiln in, the suspension cooler is used for the cooling whirlwind section of thick bamboo that the gas -solid separates including the B heat transfer pipeline that is used for the useless phosphor powder of suspension cooling and with B heat transfer pipeline is connected, the discharge gate and the B heat transfer pipeline of kiln hood are connected, a cooling air flow mixed for inciting somebody to action useless phosphor powder after the calcination is carried to the B heat transfer pipeline in and is let in B heat transfer pipeline by the external world.

Description

A kind of calciner of useless fluorescent material
Technical field
This utility model is related to the utilization technology field of useless fluorescent material, the roasting dress of more particularly, to a kind of useless fluorescent material Put.
Background technology
With the popularization in daily life of the products such as fluorescent lamp, computer, mobile phone and color television with widely use, rare earth Fluorescent material consumption increases increasingly, and correspondingly, the yield of discarded fluorescent material also constantly increases.Contain relatively due in useless fluorescent material For rare earth elements such as expensive yttrium and europiums, therefore, recovering rare earth element from useless fluorescent material, has very strong realistic meaning.
At present, during the recycling of useless fluorescent material rare earth elements, the extraction of follow-up rare earth element for convenience, Often roasting to be carried out to useless fluorescent material, but in roasting process, substantial amounts of heat consumption can be produced, cause roasting cost relatively Height, thus further increase the cost recovery of useless fluorescent material.
Utility model content
For solving the above problems, this utility model provides a kind of calciner of useless fluorescent material, and this calciner includes Suspended preheater, calcining kiln and suspension cooler, the heat that fluorescent material that roasting can be given up produces efficiently is reclaimed profit again With improving the overall thermal efficiency of useless fluorescent material roasting process, reducing roasting heat consumption simultaneously.
This utility model provides a kind of calciner of useless fluorescent material, cold including suspended preheater, calcining kiln and suspension But device, suspended preheater include for the A heat exchange pipeline of the useless fluorescent material of heating that suspends and be connected with A heat exchange pipeline for gas Gu detached preheating cyclone cylinder, calcining kiln includes kiln hood and kiln tail, and kiln tail is provided with charging aperture and air outlet, and kiln hood is provided with discharging Mouthful, the air outlet of kiln tail is connected with A heat exchange pipeline, for conveying, to A heat exchange pipeline, the hot cigarette producing in calcining kiln roasting process Gas, the bottom of preheating cyclone cylinder is connected with charging aperture, so that the useless fluorescent material after the preheating that obtains of gas solid separation is delivered to roasting In kiln, suspension cooler include for the B heat exchange pipeline of the useless fluorescent material of cooling that suspends and be connected with B heat exchange pipeline for gas Gu detached cooling cyclone cylinder, the discharging opening of kiln hood is connected with B heat exchange pipeline, for the useless fluorescent material after roasting is delivered to B Mix with by the cooling air-flow that the external world is passed through in B heat exchange pipeline in heat exchange pipeline.
Wherein, described kiln hood is additionally provided with air inlet, and described cooling cyclone cylinder is additionally provided with air outlet, described kiln hood air inlet with Described cooling cyclone cylinder air outlet is connected by pipeline, and the high-temperature gas for producing described cooling cyclone cylinder is delivered to described Use as combustion-supporting gas in calcining kiln.
Wherein, the quantity of described preheating cyclone cylinder is 2-4, and the quantity of described cooling cyclone cylinder is 2-3.
Wherein, the quantity of preheating cyclone cylinder is 4, and respectively one-level preheating cyclone cylinder, two grades of preheating cyclone cylinders, three-levels are pre- Hot cyclone cylinder and level Four preheating cyclone cylinder, A heat exchange pipeline includes connecting that one-level preheats cyclone cylinder and two grades of preheating cyclone cylinders One heat exchange pipeline, two grades of preheating cyclone cylinders of connection and three-level preheat the second heat exchange pipeline of cyclone cylinder, connect three-level preheating whirlwind Cylinder and level Four preheat the 3rd heat exchange pipeline of cyclone cylinder and connect the 4th heat exchange that level Four preheats cyclone cylinder and kiln tail air outlet Pipeline, useless fluorescent material passes through the first heat exchange pipeline and enters in suspended preheater.
Wherein, one-level preheats cyclone cylinder, two grades of preheating cyclone cylinders, three-levels preheat cyclone cylinder and the bottom of level Four preheating cyclone cylinder Portion is respectively equipped with one-level discharge nozzle, two grades of discharge nozzles, three-level discharge nozzle and level Four discharge nozzle, one-level discharge nozzle and the second heat exchanger tube Road connects, and two grades of discharge nozzles are connected with the 3rd heat exchange pipeline, and three-level discharge nozzle is connected with the 4th heat exchange pipeline, level Four discharge nozzle and Kiln tail charging aperture connects.
Wherein, the quantity of cooling cyclone cylinder is 3, respectively one-level cooling cyclone cylinder, two grades of cooling cyclone cylinders and three-level Cooling cyclone cylinder, B heat exchange pipeline includes connecting one-level and cools down cyclone cylinder and two grades of cooling the Ith heat exchange pipelines of cyclone cylinders, connections Two grades of cooling cyclone cylinders and three-level cool down the IIth heat exchange pipeline of cyclone cylinder and connect that extraneous and three-level cools down cyclone cylinder the III heat exchange pipeline, extraneous cooling air-flow is passed through the IIIth heat exchange pipeline and is entered in suspension cooler.
Wherein, one-level cools down cyclone cylinder, two grades of cooling cyclone cylinders and three-level and cools down the bottom of cyclone cylinder and is respectively equipped with I grade and goes out Expects pipe, II grade of discharge nozzle and III grade of discharge nozzle;I grade of discharge nozzle is connected with II heat exchange pipelines, and II grade of discharge nozzle is changed with the IIIth grade Hot channel connects, and III grade of discharge nozzle is used for for useless fluorescent material exporting calciner.
Wherein, the calciner of useless fluorescent material also includes dust arrester installation, and preheating cyclone cylinder is connected with dust arrester installation, for returning Receive the useless fluorescent material in the waste gas that in preheating cyclone cylinder, gas solid separation produces.
Wherein, dust arrester installation includes cloth bag catcher, centrifugal blower and the chimney being sequentially connected, and preheating cyclone cylinder is provided with Air outlet, air outlet is connected with cloth bag catcher.
Wherein, calcining kiln is rotary kiln.
The calciner of a kind of useless fluorescent material that this utility model provides, can carry out suspend heating, roasting to useless fluorescent material Burn and suspend and cool down, the heat that cooling after the flue gas of useless fluorescent material roasting generation and roasting is produced heat smoke is carried out efficiently Recycling, improve the overall thermal efficiency of useless fluorescent material roasting process, reduce roasting heat consumption, solve prior art The problem that traditional roasting pretreatment device thermal efficiency is low, power consumption is high.In addition, adopting suspended preheater and suspension cooler, can To improve the contact area of gas and useless fluorescent material, heat transfer rate is fast, and heat exchanger effectiveness is high, improves roasting efficiency.By preheating Useless fluorescent material can be more easy to be calcined, the drying of useless fluorescent material and decomposed function can be completed in warm-up phase, generation Replace the partial function of calcining kiln, the length of calcining kiln can have been shortened, reduce production cost.
Brief description
Fig. 1 is the calciner schematic diagram of useless fluorescent material in this utility model one embodiment.
Specific embodiment
Described below is preferred implementation of the present utility model it is noted that ordinary skill for the art For personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and moisten Decorations are also considered as protection domain of the present utility model.
Fig. 1 is the calciner schematic diagram of useless fluorescent material in this utility model one embodiment.With reference to Fig. 1, this practicality is new The calciner of a kind of useless fluorescent material that type provides, including suspended preheater 100, calcining kiln 200 and suspension cooler 300, hangs Floating preheater 100 is included for the A heat exchange pipeline of the useless fluorescent material of the heating that suspends and is divided for gas-solid with what A heat exchange pipeline was connected From preheating cyclone cylinder, calcining kiln 5 includes kiln hood 52 and kiln tail 51, and kiln tail 51 is provided with charging aperture 512 and air outlet 511, kiln hood 52 are provided with discharging opening 521, and the air outlet 511 of kiln tail is connected with A heat exchange pipeline, for conveying calcining kiln roasting to A heat exchange pipeline During the heat smoke that produces, the bottom of preheating cyclone cylinder connected with charging aperture 512, so that after the preheating that obtains of gas solid separation Useless fluorescent material is delivered in calcining kiln 5, and suspension cooler includes B heat exchange pipeline and and B for the useless fluorescent material of the cooling that suspends The cooling cyclone cylinder for gas solid separation that heat exchange pipeline connects, the discharging opening 521 of kiln hood 52 is connected with B heat exchange pipeline, is used for Useless fluorescent material after roasting is delivered in B heat exchange pipeline and mixes with by the cooling air-flow that the external world is passed through in B heat exchange pipeline.
In this utility model one embodiment, useless fluorescent material is the useless fluorescent material comprising rare earth element, does not specifically limit, permissible For green emitting phosphor or red fluorescence powder etc..
In this utility model one embodiment, the particle diameter of useless fluorescent material does not limit.
In this utility model one embodiment, useless fluorescent material is entered A heat exchange pipeline and is mixed with heat smoke, quickly forms outstanding Floating state, is carried out heat exchange, the temperature rise of useless fluorescent material simultaneously, then the useless fluorescent material of suspended state is blown into preheating with heat smoke Carry out gas solid separation in cyclone cylinder, useless fluorescent material drops to the bottom of cylinder, then by bottom enter kiln tail carry out follow-up Roasting.Suspended state heating is carried out by A heat exchange pipeline, firing rate is very fast, and the utilization rate of the heat of heat smoke is higher.Preheating Cyclone cylinder is except the effect of gas solid separation is it is also possible to play certain heat exchange action.
In this utility model one embodiment, the bottom of preheating cyclone cylinder is provided with the first discharge nozzle, and preheating cyclone cylinder passes through First discharge nozzle is connected with calcining kiln charging aperture.
In this utility model one embodiment, the quantity of preheating cyclone cylinder is 2-4, passes through pipeline between preheating cyclone cylinder Connect.
As shown in figure 1, in this utility model one preferred implementation, the quantity of preheating cyclone cylinder is 4, respectively one-level 1, two grades of preheating cyclone cylinders 2 of preheating cyclone cylinder, three-level preheating cyclone cylinder 3 and level Four preheating cyclone cylinder 4, A heat exchange pipeline is included even Connect the first heat exchange pipeline 12, two grades of preheating cyclone cylinders 2 of connection and the three-level that one-level preheats cyclone cylinder 1 and two grades of preheating cyclone cylinders 3 Second heat exchange pipeline 23 of preheating cyclone cylinder 3, connection three-level preheat cyclone cylinder 3 and level Four preheats the 3rd heat exchanger tube of cyclone cylinder 4 Road 34 connects and connects the 4th heat exchange pipeline 45 that level Four preheats cyclone cylinder 4 and kiln tail air outlet 511, and useless fluorescent material passes through the One heat exchange pipeline 12 enters in suspended preheater.When the quantity preheating cyclone cylinder is 4, firing stage can be made full use of and produce Raw heat.
In this utility model one preferred implementation, 1, two grades of preheating cyclone cylinders 2 of one-level preheating cyclone cylinder, three-level preheating rotation The bottom of air duct 3 and level Four preheating cyclone cylinder 4 is respectively equipped with 11, two grades of discharge nozzles 21 of one-level discharge nozzle, three-level discharge nozzle 31 and Level Four discharge nozzle 41, one-level discharge nozzle 11 is connected with the second heat exchange pipeline 23, and two grades of discharge nozzles 21 and the 3rd heat exchange pipeline 34 are even Connect, three-level discharge nozzle 31 is connected with the 4th heat exchange pipeline 45, level Four discharge nozzle 41 is connected with kiln tail charging aperture 512.
In this utility model one embodiment, one-level preheating cyclone cylinder 1 and two grades of preheating cyclone cylinders 2 pass through the first heat exchanger tube Road 12 connects the air outlet referring to two grades of preheating cyclone cylinders 2 and one-level preheats the air intake vent of cyclone cylinder 1 by the first heat exchanger tube Road 12 connects, and equally, preheats cyclone cylinder for other, and next stage preheats the air outlet of cyclone cylinder and upper level preheats cyclone cylinder Air intake vent is also to be connected by heat exchange pipeline.
In this utility model one embodiment, the calciner of useless fluorescent material also includes dust arrester installation, dust arrester installation with pre- Hot cyclone cylinder connects, for reclaiming the useless fluorescent material in the waste gas that in preheating cyclone cylinder, gas solid separation produces.
In this utility model one embodiment, when the quantity preheating cyclone cylinder is 4, dust arrester installation is revolved with one-level preheating Air duct 1 connects.
As shown in figure 1, in this utility model one embodiment, cloth bag catcher 20 that dust arrester installation includes being sequentially connected, Centrifugal blower 30 and chimney 40, one-level preheating cyclone cylinder 1 is provided with air outlet 13, and air outlet 13 is connected with cloth bag catcher 20.
In this utility model one embodiment, preheat, in one-level, the waste gas that in cyclone cylinder, gas solid separation produces and pass through air outlet 13 enter in cloth bag catcher 20, separate and obtain useless fluorescent material and gas, and gas enters chimney 40 through centrifugal blower 30, passes through Chimney 40 enters in air, and useless fluorescent material goes to raw material cabin 50 after collecting.
In this utility model one embodiment, the useless phosphor raw material in raw material cabin 50 is by two grades of preheating cyclone cylinder 2 air-out Mouth is preheated with one-level and feeds between the first heat exchange pipeline 12 that cyclone cylinder 1 air inlet is connected, and forms Dual-Phrase Distribution of Gas olid with thermal current, and Complete first time heat exchange in the first heat exchange pipeline 12, then enter together with the heat smoke from two grades of preheating cyclone cylinders 2 One-level preheats cyclone cylinder 1, preheats in cyclone cylinder 1 in one-level and completes gas solid separation, and material is gone out by the one-level that one-level preheats cyclone cylinder 1 Expects pipe 11 is discharged, and waste gas is discharged into dust arrester installation by one cyclonic cylinder 1 air outlet 13.Preheat the thing of cyclone cylinder 1 from one-level Material (stream), imports two grades of preheating cyclone cylinder 2 air inlets and preheats, with three-level, the second heat exchange pipeline 23 that cyclone cylinder 3 air outlet is connected In, after completing second heat exchange and gas solid separation, material is discharged by two grades of discharge nozzles 21 of two grades of preheating cyclone cylinders 2.It is derived from The material of two grades of preheating cyclone cylinders 2, imports three-level and preheats what cyclone cylinder 3 air inlet was connected with level Four preheating cyclone cylinder 4 air outlet In 3rd heat exchange pipeline 34, after completing third time heat exchange and gas solid separation, material preheats the 3rd discharging of cyclone cylinder 3 by three-level Pipe 31 is discharged.The material preheating cyclone cylinder 3 from three-level enters level Four preheating rotation together with the high-temp waste gas discharged by calcining kiln 5 Air duct 4, after completing the 4th heat exchange and gas solid separation, material is discharged to by the 4th discharge nozzle 41 that level Four preheats cyclone cylinder 4 Carry out roasting in calcining kiln 5.
In this utility model one embodiment, the temperature of the useless fluorescent material after preheating reaches 700 DEG C about.
By useless fluorescent material and thermal current mixing fluorescent material is preheated, by preheating useless fluorescent material can be more easy to be calcined into Row reaction, furthermore it is possible to the heat after high efficiente callback material roasting, reduces the comprehensive heat consumption of system.
In this utility model one embodiment, when first useless fluorescent material is preheated first, due to now also not having Have and carry out roasting, therefore firing stage does not also produce heat smoke, now thermal current can come from the high temperature that other approach obtain Gas, the heat smoke that the useless fluorescent material of subsequent batches just can be produced using firing stage is used for warm-up phase as thermal current. Because, in real process, the roasting of useless fluorescent material is a continuous process, and first useless fluorescent material may be using other ways The high-temperature gas that footpath produces, but after firing stage produces heat smoke, this heat smoke just can be used as the steam of warm-up phase Stream is thus provide energy for warm-up phase.
In this utility model one embodiment, the useless fluorescent material of preheating is placed in calcining kiln and carries out roasting, obtain roasting Useless fluorescent material afterwards, sintering temperature is 800-1000 DEG C, and roasting time is 1-6h, and calcination atmosphere is oxidizing atmosphere;Firing stage The heat smoke producing is used for warm-up phase as thermal current.
In this utility model one embodiment, firing stage introduces air and forms oxidizing atmosphere.
In this utility model one embodiment, calcining kiln includes kiln hood and kiln tail, and useless fluorescent material is roasted from kiln tail charging Burn, and be delivered to kiln hood discharging according to certain speed.In calcining kiln, kiln hood is passed through natural gas and is burnt and produced high temperature Flue gas, under the driving of blower fan, flue gas flows from kiln hood to kiln tail.
In this utility model one embodiment, calcining kiln is rotary kiln.
In this utility model one embodiment, cooling air-flow is air.
In this utility model one embodiment, the bottom of cooling cyclone cylinder is provided with the second discharge nozzle, and cooling cyclone cylinder passes through Useless fluorescent material is exported calciner by the second discharge nozzle.
In this utility model one embodiment, the quantity of cooling cyclone cylinder is 2-3, passes through pipeline between cooling cyclone cylinder Connect.
As shown in figure 1, in this utility model one preferred implementation, the quantity of cooling cyclone cylinder is 3, respectively one-level 7, two grades of cooling cyclone cylinders 8 of cooling cyclone cylinder and three-level cooling cyclone cylinder 9, B heat exchange pipeline includes connecting one-level cooling cyclone cylinder 7 Cool down cyclone cylinders 8 and the IIth of three-level cooling cyclone cylinder 9 the and change with the Ith heat exchange pipeline 78 of two grades of cooling cyclone cylinders 8, two grades of connection Hot channel 89 and the IIIth heat exchange pipeline 90 connecting extraneous 79 and three-level cooling cyclone cylinder 9, extraneous 79 cooling air-flow is passed through IIIth heat exchange pipeline 90 enters in suspension cooler.When cool down cyclone cylinder quantity be 3 when, can be with sufficiently cool roasting after Useless fluorescent material, contributes to subsequent applications.
In this utility model one embodiment, one-level 7, two grades of cooling cyclone cylinders 8 of cooling cyclone cylinder and three-level cool down whirlwind 9 bottoms of cylinder are respectively equipped with 71, II grade of discharge nozzle 81 of I grade of discharge nozzle and III grade of discharge nozzle 91;Kiln hood discharging opening 521 changes with the Ith Hot channel 78 connects, and I grade of discharge nozzle 71 is connected with the IIth heat exchange pipeline 89, and II grade of discharge nozzle 81 and the IIIth grade of heat exchange pipeline 90 are even Connect, III grade of discharge nozzle 91 is used for for useless fluorescent material exporting calciner.
In this utility model one embodiment, one-level cooling cyclone cylinder 7 and two grades of cooling cyclone cylinders 8 pass through the Ith heat exchanger tube Road 78 connects the air outlet referring to two grades of cooling cyclone cylinders 8 and one-level cools down the air intake vent of cyclone cylinder 7 by the Ith heat exchange pipeline 78 connections, equally, cool down cyclone cylinder for other, and next stage cools down the air outlet of cyclone cylinder and upper level cools down entering of cyclone cylinder Air port is also to be connected by heat exchange pipeline.
In this utility model one preferred implementation, kiln hood 52 is additionally provided with air inlet 522, and cooling cyclone cylinder is additionally provided with air-out Mouthful, kiln hood air inlet 522 is connected by pipeline with cooling cyclone cylinder air outlet, for the high-temperature gas producing cooling cyclone cylinder It is delivered in calcining kiln and use as combustion-supporting gas.
In this utility model embodiment, when the quantity cooling down cyclone cylinder is 3, kiln hood air inlet 522 is cold with one-level But cyclone cylinder air outlet 72 is connected by pipeline, and the high-temperature gas for one-level cools down cyclone cylinder generation is delivered in calcining kiln Use as combustion-supporting gas.
In this utility model one preferred implementation, high-temperature gas is entered in calcining kiln by high temperature draught fan 6.
In this utility model one embodiment, after the useless fluorescent material after cooling air-flow and roasting carries out heat exchange, enter roasting It is used for combustion-supporting in firing.During cooling stage, after after cooling air-flow and roasting, useless fluorescent material carries out heat exchange, the temperature of air-flow Raise, then this air-flow is delivered in calcining kiln and can compare air using room temperature as auxiliary with the burning of additional natural gas Help gas, reduce the energy expenditure in roasting process.If air-flow has more than needed, also act as useless fluorescent material following process process With heat, so take full advantage of cooling air-flow, save energy consumption.
In this utility model one embodiment, the temperature of the useless fluorescent material after cooling can be down to room temperature.
In this utility model one embodiment, introduce natural gas at kiln hood 52 position.
In this utility model one embodiment, the calciner of useless fluorescent material also includes storage bin 10, storage bin and cooling Cyclone cylinder bottom connect so that cooling after useless fluorescent material be delivered to stand-by in storage bin 10.
In this utility model one preferred implementation, III grade of discharge nozzle 91 is connected with storage bin 10, useless after being cooled down Fluorescent material enters storage bin 10, is used for subsequently further being processed.
In this utility model one embodiment, calcining kiln 5 is rotary kiln.
In this utility model one embodiment, fired after high temperature give up fluorescent material by one-level cool down cyclone cylinder 7 air intake The Ith heat exchange pipeline 78 that is connected feeds in suspension cooler mouthful and between the air outlet of two grades of cooling cyclone cylinders 8, thermal material and two grades The cold air mixing that cooling cyclone cylinder 8 air outlet is discharged, forms Dual-Phrase Distribution of Gas olid and completes first time heat exchange, then enter together Enter one-level cooling cyclone cylinder 7, carry out gas solid separation, material (stream) temperature reduces, useless fluorescent material cools down cyclone cylinder 7 by one-level I grade of discharge nozzle 71 is discharged;Gas temperature raises, and is discharged by one-level cooling cyclone cylinder 7 air outlet 72 and enters roasting through high temperature draught fan 6 Combustion-supporting in firing 5, such as gas has available calcellation fluorescent material following process process heat more than needed.Cool down cyclone cylinder 7 from one-level Material imports two grades of cooling cyclone cylinder 8 air inlets and three-level cools down in the IIth heat exchange pipeline 89 between cyclone cylinder 9 air outlet, completes After second heat exchange and gas solid separation, material is discharged by II grade of discharge nozzle 81 of two grades of cooling cyclone cylinders 8.Cool down from two grades Cyclone cylinder 8 enters three-level cooling cyclone cylinder 9 together with cold air, and completes third time heat exchange and gas solid separation, and material is by three III grade of discharge nozzle 91 of level cooling cyclone cylinder 9 exits into storage bin 10.
The give up operation principle of calciner of fluorescent material of this utility model is:Useless fluorescent material enters the first heat exchange pipeline 12 In, heat smoke enters in the first heat exchange pipeline 12 by two grades of preheating cyclone cylinders 2, mixes with heat smoke in the first heat exchange pipeline 12 Close and then carry out first time heat exchange, useless fluorescent material temperature raises, the fluorescent material that then gives up enters one-level preheating together with heat smoke Carry out gas solid separation after cyclone cylinder 1, obtain waste gas and useless fluorescent material, useless fluorescent material is dropped to cylinder body bottom and then gone out by one-level Expects pipe 11 is discharged in the second heat exchange pipeline 23, and waste gas preheats cyclone cylinder air outlet 13 by one-level and enters cloth bag catcher 20 In, separate and obtain useless fluorescent material and gas, raw material cabin 50 gone to by useless fluorescent material, and gas enters chimney 40 through centrifugal blower 30, Enter in air through chimney 40.Heat smoke preheats cyclone cylinder 3 by three-level and enters in the second heat exchange pipeline 23, one-level discharge nozzle The useless fluorescent material of 11 discharges is mixed with heat smoke and carries out second heat exchange, after then entering two grades of preheating cyclone cylinders 2 together Carry out gas solid separation, obtain useless fluorescent material and be discharged into the 3rd heat exchange pipeline 34 by two grades of discharge nozzles 21, waste gas passes through first Heat exchange pipeline 12 enters one-level preheating cyclone cylinder 1, and heat smoke preheats cyclone cylinder 4 by level Four and enters in the 3rd heat exchange pipeline 34, Heat smoke and the mixing of useless fluorescent material carry out third time heat exchange, preheat subsequently into three-level and carry out gas solid separation after cyclone cylinder 3, obtain To useless fluorescent material, the 4th heat exchange pipeline 45 is discharged into by three-level discharge nozzle 31, the heat smoke that kiln tail gas outlet 511 produces enters Enter in the 4th heat exchange pipeline 45, useless fluorescent material and heat smoke carry out the 4th heat exchange, preheat after cyclone cylinder 4 subsequently into level Four Carry out gas solid separation, obtain useless fluorescent material and kiln tail charging aperture 512 is discharged into by level Four discharge nozzle 41, enter the useless of kiln tail 51 Fluorescent material carries out roasting, and after roasting terminates, the useless fluorescent material after the roasting obtaining enters the Ith heat exchange through kiln hood discharging opening 521 Pipeline 78, cooling air-flow enters the Ith heat exchange pipeline 78 by two grades of cooling cyclone cylinders 8, and useless fluorescent material and cooling air-flow are mixed into Row first time heat exchange, useless fluorescent material temperature reduces, and cools down subsequently into one-level and carries out gas solid separation after cyclone cylinder 7, is given up Gas and useless fluorescent material, waste gas passes through air outlet 72 and is delivered to kiln hood air inlet 522 by high temperature draught fan 6 and enters calcining kiln work For combustion-supporting gas, the bottom that useless fluorescent material drops to cylinder is discharged into the IIth heat exchange pipeline 89 by I grade of discharge nozzle 71, cools down Air-flow cools down cyclone cylinder 9 by three-level and enters in the IIth heat exchange pipeline 89, and useless fluorescent material and cooling air-flow carry out second heat and hand over Change, carry out gas solid separation subsequently into after two grades of cooling cyclone cylinders 8, obtain useless fluorescent material and be discharged into by II grade of discharge nozzle 81 IIIth heat exchange pipeline 90, cooling air-flow enters the IIIth heat exchange pipeline 90 by air inlet, and useless fluorescent material and cooling air-flow carry out the Three heat exchanges, cool down subsequently into three-level and carry out gas solid separation after cyclone cylinder 9, the useless fluorescent material after being cooled down passes through III grade Discharge nozzle 91 is discharged, and enters storage bin 10, is used for subsequently further being processed.
This utility model provides a kind of calciner of useless fluorescent material, and useless fluorescent material can be carried out with suspend heating, roasting Burn and suspend and cool down, on the one hand, after the flue gas produce useless fluorescent material roasting and roasting, cooling produces the heat of heat smoke Carry out efficient recycling, improve the overall thermal efficiency of useless fluorescent material roasting process, reduce roasting heat consumption, solve The problem that the traditional roasting pretreatment technique thermal efficiency of prior art is low, power consumption is high.On the other hand, using heating and the suspension of suspending The method of cooling, can improve the contact area of gas and useless fluorescent material, and heat transfer rate is fast, and heat exchanger effectiveness is high, improve roasting Efficiency.In addition, can be more easy to be calcined thus being reacted, by the drying of useless fluorescent material and part by the useless fluorescent material of preheating Decompose and completed by warm-up phase, instead of the partial function of calcining kiln, the length of calcining kiln can be shortened.
To sum up, the calciner of the useless fluorescent material that this utility model provides includes suspended preheater, calcining kiln and suspends cold But device, the heating that suspends with the heat after high efficiente callback material roasting, can reduce the comprehensive heat consumption of system.Suspension is cooled in high efficiency While cooling down high-temperature material, through heat exchange, heat is passed to cold air, for the air supply in rotary kiln, so that heat is obtained Reclaim.Therefore, the calciner energy consumption of the useless fluorescent material that this utility model provides is less, and roasting cost is relatively low, contributes to reducing The cost recovery of useless fluorescent material.
The above is preferred implementation of the present utility model it is noted that ordinary skill for the art For personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and moisten Decorations are also considered as protection domain of the present utility model.

Claims (10)

1. a kind of calciner of useless fluorescent material is it is characterised in that include suspended preheater, calcining kiln and suspension cooler, institute State suspended preheater include for the useless fluorescent material of heating that suspends A heat exchange pipeline and with being used for that described A heat exchange pipeline is connected The preheating cyclone cylinder of gas solid separation, described calcining kiln includes kiln hood and kiln tail, and described kiln tail is provided with charging aperture and air outlet, described Kiln hood is provided with discharging opening, and the air outlet of described kiln tail is connected with described A heat exchange pipeline, for conveying roasting to described A heat exchange pipeline The heat smoke producing in firing roasting process, the bottom of described preheating cyclone cylinder is connected with described charging aperture, so that described gas-solid Separate the useless fluorescent material after the preheating obtaining to be delivered in described calcining kiln, described suspension cooler includes useless for the cooling that suspends The B heat exchange pipeline of fluorescent material and the cooling cyclone cylinder for gas solid separation being connected with described B heat exchange pipeline, described kiln hood Discharging opening is connected with described B heat exchange pipeline, is passed through with by the external world for being delivered to the useless fluorescent material after roasting in B heat exchange pipeline Cooling air-flow mixing in described B heat exchange pipeline.
2. as claimed in claim 1 give up fluorescent material calciner it is characterised in that described kiln hood is additionally provided with air inlet, institute State cooling cyclone cylinder and be additionally provided with air outlet, described kiln hood air inlet is connected by pipeline with described cooling cyclone cylinder air outlet, uses It is delivered in described calcining kiln in the high-temperature gas producing described cooling cyclone cylinder and use as combustion-supporting gas.
3. as claimed in claim 1 give up fluorescent material calciner it is characterised in that described preheating cyclone cylinder quantity be 2- 4, the quantity of described cooling cyclone cylinder is 2-3.
4. as claimed in claim 3 give up fluorescent material calciner it is characterised in that described preheating cyclone cylinder quantity be 4 Individual, respectively one-level preheating cyclone cylinder, two grades of preheating cyclone cylinders, three-levels preheat cyclone cylinder and level Four preheating cyclone cylinder, and described A changes Hot channel includes connecting described one-level and preheats the first heat exchange pipeline of cyclone cylinder and described two grades of preheating cyclone cylinders, connects described two Level preheating cyclone cylinder and described three-level preheat the second heat exchange pipeline of cyclone cylinder, connect described three-level preheating cyclone cylinder and described four 3rd heat exchange pipeline of level preheating cyclone cylinder and the described level Four of connection preheat cyclone cylinder and the 4th of described kiln tail air outlet the and change Hot channel, useless fluorescent material passes through described first heat exchange pipeline and enters in described suspended preheater.
5. give up as claimed in claim 4 fluorescent material calciner it is characterised in that described one-level preheating cyclone cylinder, described Two grades of bottoms preheating cyclone cylinder, described three-level preheating cyclone cylinder and described level Four preheating cyclone cylinder are respectively equipped with one-level discharging Pipe, two grades of discharge nozzles, three-level discharge nozzle and level Four discharge nozzle, described one-level discharge nozzle is connected with described second heat exchange pipeline, institute State two grades of discharge nozzles to be connected with described 3rd heat exchange pipeline, described three-level discharge nozzle is connected with described 4th heat exchange pipeline, described Level Four discharge nozzle is connected with described kiln tail charging aperture.
6. as claimed in claim 3 give up fluorescent material calciner it is characterised in that described cooling cyclone cylinder quantity be 3 Individual, respectively one-level cooling cyclone cylinder, two grades of cooling cyclone cylinders and three-level cooling cyclone cylinder, described B heat exchange pipeline includes connecting Described one-level cool down cyclone cylinder and described two grades of cooling cyclone cylinders the Ith heat exchange pipeline, connect described two grades of cooling cyclone cylinders and Described three-level cools down the IIth heat exchange pipeline of cyclone cylinder and connects the IIIth heat exchanger tube that extraneous and described three-level cools down cyclone cylinder Road, described extraneous cooling air-flow is passed through the IIIth heat exchange pipeline and is entered in described suspension cooler.
7. give up as claimed in claim 6 fluorescent material calciner it is characterised in that described one-level cooling cyclone cylinder, described The bottom of two grades of cooling cyclone cylinders and described three-level cooling cyclone cylinder is respectively equipped with I grade of discharge nozzle, II grade of discharge nozzle and III grade and goes out Expects pipe;Described I grade of discharge nozzle is connected with described IIth heat exchange pipeline, and described II grade of discharge nozzle is with described IIIth heat exchange pipeline even Connect, described III grade of discharge nozzle is used for for useless fluorescent material exporting described calciner.
8. as claimed in claim 1 give up fluorescent material calciner it is characterised in that the calciner of described useless fluorescent material also Including dust arrester installation, described dust arrester installation is connected with described preheating cyclone cylinder, divides for reclaiming gas-solid in described preheating cyclone cylinder Useless fluorescent material in the waste gas producing.
9. as claimed in claim 8 give up fluorescent material calciner it is characterised in that described dust arrester installation includes being sequentially connected Cloth bag catcher, centrifugal blower and chimney, described preheating cyclone cylinder is provided with air outlet, and described air outlet is collected with described cloth bag Device connects.
10. as claimed in claim 1 give up fluorescent material calciner it is characterised in that described calcining kiln be rotary kiln.
CN201620790327.8U 2016-07-26 2016-07-26 Calcination device of useless phosphor powder Active CN205933958U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106065432A (en) * 2016-07-26 2016-11-02 江西格林美资源循环有限公司 The method of roasting of a kind of useless fluorescent material and device
CN109836060A (en) * 2019-04-04 2019-06-04 南京凯盛国际工程有限公司 A kind of powdered lime calcining and decomposing preparation system
CN109900124A (en) * 2019-04-04 2019-06-18 南京凯盛国际工程有限公司 A kind of granular material cooling device
CN112174176A (en) * 2020-09-28 2021-01-05 沈阳鑫博工业技术股份有限公司 A kind of device and method for preparing α-alumina using aluminum hydroxide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106065432A (en) * 2016-07-26 2016-11-02 江西格林美资源循环有限公司 The method of roasting of a kind of useless fluorescent material and device
CN109836060A (en) * 2019-04-04 2019-06-04 南京凯盛国际工程有限公司 A kind of powdered lime calcining and decomposing preparation system
CN109900124A (en) * 2019-04-04 2019-06-18 南京凯盛国际工程有限公司 A kind of granular material cooling device
CN112174176A (en) * 2020-09-28 2021-01-05 沈阳鑫博工业技术股份有限公司 A kind of device and method for preparing α-alumina using aluminum hydroxide
CN112174176B (en) * 2020-09-28 2022-11-15 沈阳鑫博工业技术股份有限公司 A device and method for preparing α-alumina by using aluminum hydroxide

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