CN202543074U - Calcining device for producing light calcined magnesia powder - Google Patents
Calcining device for producing light calcined magnesia powder Download PDFInfo
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- CN202543074U CN202543074U CN2012201637850U CN201220163785U CN202543074U CN 202543074 U CN202543074 U CN 202543074U CN 2012201637850 U CN2012201637850 U CN 2012201637850U CN 201220163785 U CN201220163785 U CN 201220163785U CN 202543074 U CN202543074 U CN 202543074U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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Abstract
The utility model relates to a calcining device for producing light calcined magnesia powder. The calcining device comprises a dryer, a cyclone separator, two suspension preheaters, a calciner, a heat cyclone separator, three counterflow heat exchangers, a cooler, a Cottrell precipitator, and four burning stations, wherein the cyclone separator, the two suspension preheaters, the calciner, the heat cyclone separator, the three counterflow heat exchanger and the cooler are arranged between the dryer and the dust remover, the cyclone separator and the heat cyclone separator are used as dust removers, an air outlet of the dryer is communicated with an air inlet of the cyclone separator through a pipeline, an air inlet of the dryer is communicated with an air outlet of the first-stage suspension preheater through a U-shaped pipeline, an air inlet of the first-stage suspension preheater is communicated with an air outlet of the second-stage suspension preheater through a pipeline, an air inlet of the second-stage suspension preheater is communicated with an air outlet of the heat cyclone separator through a pipeline, and an air inlet of the heat cyclone separator is communicated with an air outlet of the calciner through a pipeline. The calcining device has the advantages that the degree of automation is high, pollution is reduced and produced light calcined magnesia has good activity.
Description
Technical field
The utility model relates to a kind of magnesite breeze roasting assembly, particularly a kind of high energy efficiency magnesite breeze roasting assembly.
Background technology
The most reflecting kiln technologies that adopt of the production of light calcined magnesia at present.Reflecting kiln production technology equipment falls behind, and single cover throughput is low, and single cover annual capacity is 6kt ~ 10kt only; Hear rate is high, every t light calcined magnesia consumption mean consumption 240kg standard coal equivalent, and what have surpasses 300kg; Serious waste of resources, every t light calcined magnesia consumption consumes raw ore 2.8 ~ 3.0t; Level of automation is low, generally adopts artificial material loading, artificial discharging; Seriously polluted, the exhaust gas discharged dust content is all at 700mg/Nm
3More than; Phenomenons such as vexed kiln, stifled kiln often appear in production poor continuity, reflecting kiln, have to carry out manual handling; Labour productivity is low, has only about 800t/ people a; The poor activity of light calcined magnesia is with active oxidation Mg content less than 80% in the magnesia unslacked of water law test; Industrial concentration is poor, and the cover that has only that has is produced, and is many only about 20 covers, in view of more than, the light calcined magnesia industry has been put on the cap of " little, diffusing, random ", this shows the degree of the backwardness of this industry.
The utility model content
The purpose of the utility model; Be to the problem that exists in the prior art; And provide a kind of high energy efficiency magnesite breeze roasting assembly, the utility model can reduce the product hear rate, reduce to pollute, improve automatization level and labour productivity, the activity of increase magnesia unslacked, increase economic efficiency.
The technical scheme that adopts is:
A kind of light-magnesite powder roasting assembly comprises that moisture eliminator, cyclonic separator, two suspended preheaters, calcining furnace, hot cyclone separator, three aheat exchangers, water cooler, fly-ash separator, quadruplets burn and stand; Wherein be provided with cyclonic separator, two suspended preheaters, calcining furnace, hot cyclone separator, three aheat exchangers, water cooler between moisture eliminator and the fly-ash separator; Cyclonic separator and hot cyclone separator are as fly-ash separator; Two suspended preheaters are respectively as first stage suspension preheater and secondary suspended preheater, and three aheat exchangers are respectively as one-level, secondary and three stage countercurrent interchanger.The air outlet of moisture eliminator is communicated with the inlet mouth of cyclonic separator through pipeline; The inlet mouth of moisture eliminator is communicated with the air outlet of first stage suspension preheater through U type pipeline; The inlet mouth of first stage suspension preheater is communicated with the air outlet of secondary suspended preheater through pipeline; The inlet mouth of secondary suspended preheater is communicated with the air outlet of hot cyclone separator through pipeline, and the inlet mouth of hot cyclone separator is communicated with the air outlet of calcining furnace through pipeline.
In the said apparatus; The inlet mouth of calcining furnace is communicated with one-level aheat exchanger air outlet through U type pipeline; One-level aheat exchanger inlet mouth is communicated with through U type pipeline secondary aheat exchanger air outlet; Secondary aheat exchanger inlet mouth is communicated with through pipeline three stage countercurrent interchanger air outlets, and three stage countercurrent interchanger inlet mouths are communicated with atmosphere and water cooler air outlet respectively.
In the said apparatus; The cyclonic separator discharge port is communicated with the escape pipe of secondary suspended preheater through pipeline; The discharge port of first stage suspension preheater is communicated with the escape pipe of hot cyclone separator through pipeline, and the discharge port of secondary suspended preheater is communicated with the opening for feed of calcining furnace through pipeline.
In the said apparatus; The discharge port of hot cyclone separator is communicated with U type pipeline between one-level aheat exchanger inlet mouth and the secondary aheat exchanger air outlet; One-level aheat exchanger discharge port is communicated with three stage countercurrent interchanger escape pipes through pipeline; Secondary aheat exchanger extraction line is communicated with three stage countercurrent interchanger inlet pipe through pipeline, and three stage countercurrent interchanger extraction lines are communicated with the water cooler feed-pipe through pipeline.
In the said apparatus, the cyclonic separator air outlet is communicated with the fly-ash separator inlet mouth, and the fly-ash separator air outlet is communicated with fan air inlet, and the blower fan air outlet is communicated with the chimney inlet mouth, and connecting pipe is provided with loop expansion pipe.The fly-ash separator discharge port is communicated with the lift pump opening for feed through pneumatic conveyer, connecting tube, and the lift pump inlet mouth is communicated with the blower fan air outlet through pipeline, and the lift pump discharge port is communicated with one-level aheat exchanger inlet mouth through pipeline.
In the said apparatus; The air outlet at quadruplet burning station respectively with the U type pipeline that is connected first stage suspension preheater air outlet and moisture eliminator inlet mouth, be connected the U type pipeline and the U type pipeline that is connected secondary aheat exchanger air outlet one-level aheat exchanger inlet mouth of one-level aheat exchanger air outlet and calcining furnace inlet mouth; Pipeline is provided with under meter, variable valve; Tensimeter, gas blower provides the burning fresh air for the burning station.
In the said apparatus, be provided with feeding system before the moisture eliminator, be respectively feed bin, valve, feeding machine, transfer roller.
Above-mentioned feeding machine is constant feeder, metering screw transfer roller.
Above-mentioned moisture eliminator is venturi drier or oven dry beater.
Above-mentioned fly-ash separator is dust precipitator or bag filter.
Above-mentioned tornado dust collector, hot cyclone separator, calcining furnace, aheat exchanger, its angle of taper are the 60-65 degree.
Above-mentioned water cooler is fluidized bed water cooler or liquid bed water cooler, according to the size of scale, can be a cover, can be two covers.
The fuel that adopt at above-mentioned quadruplet burning station is solid fuel, liquid fuel or geseous fuel.
Above-mentioned pneumatic conveyer is air lift mud pump or screw delivery pump.
Above-mentioned lock wind apparatus be electronic, electricity surges or manually weight list flap valve, weight list flap valve.
The method of work of the device of the utility model is:
1, fineness is-0.074mm≤12%; The magnesite breeze of attached water≤15% is sent in the moisture eliminator by transfer roller through feeding machine in the feed bin, carries out heat exchange with hot gas from the first stage suspension preheater, is 150-180 ℃ through the temperature of charge after the heat exchange; Attached water≤1%; Brought into cyclonic separator by hot gas, the dusty gas after cyclonic separator separates gets into fly-ash separator and further purifies purified gas dust content≤30mg/Nm
3, send into emptying behind the chimney by fan.
2, tornado dust collector separate dried magnesite breeze; The dried magnesite breeze that settles down after the separation gets in the standpipe road of secondary suspended preheater air outlet and first stage suspension preheater inlet mouth; Carry out heat exchange and part decomposition with the hot gas from 610-640 ℃ of secondary suspension preheating actuator temperature, heat exchange is reduced to 400-430 ℃ with the magnesite breeze temperature that part is decomposed, and gets into the first stage suspension preheater with hot gas and carries out gas solid separation; Hot gas is brought into moisture eliminator; Dried magnesite breeze gets in the standpipe road of hot cyclone separator air outlet and secondary suspended preheater inlet mouth, carries out heat exchange with hot gas from 950-1000 ℃ of hot cyclone separator temperature, and the temperature of charge after heat exchange is reduced to 610-640 ℃; Get into the secondary suspended preheater with hot gas and carry out gas solid separation; Hot gas is brought into the first stage suspension preheater, and solid (material) gets into the calcining furnace calcining, to increase the activity of magnesia unslacked; Calcining temperature in the calcining furnace is 950-1000 ℃, and the magnesia unslacked after the calcining gets into cooling system behind the hot cyclone separator separate and subside.
3, the magnesia unslacked that is separated by hot cyclone separator gets into and is brought into the one-level aheat exchanger in the U type pipeline between secondary aheat exchanger air outlet and the one-level aheat exchanger inlet mouth and carries out gas solid separation; Hot gas temperature after the separation is 650-680 ℃; Get into the calcining furnace inlet mouth through U type pipeline, solid gets in the pipeline between three stage countercurrent interchanger air outlets and the secondary aheat exchanger inlet mouth, carries out heat exchange with the hot gas that from three stage countercurrent heat exchange temperatures is 230-260 ℃; Temperature of charge after heat exchange rises to 420-450 ℃; Get into the secondary aheat exchanger with hot gas and carry out gas solid separation, gas gets into the one-level aheat exchanger, carries out heat exchange in the connecting tube of solid entering atmosphere import and three stage countercurrent interchanger inlet mouths; Make the AT that gets into three stage countercurrent interchanger reach 230-260 ℃; Get into three stage countercurrent interchanger and carry out gas solid separation, gas removes the secondary aheat exchanger, and solid advances the cooling of the water cooler degree of depth.
4, be that 230-260 ℃ material gets into water cooler and carries out degree of depth cooling from three stage countercurrent heat exchange temperatures, heat-eliminating medium is a water, and inflow temperature 28-30 ℃, leaving water temperature(LWT) is 48-50 ℃, sends into fluidized wind with Root's blower.
5, collect dust in the dust-precipitator in lift pump is sent into the U type pipeline between secondary aheat exchanger air outlet and the one-level aheat exchanger inlet mouth.
The utility model is provided with cyclonic separator, two suspended preheaters, hot cyclone separator respectively on calcining furnace discharging/top, air outlet, three aheat exchangers are set in calcining furnace inlet mouth and hot cyclone separator discharge port bottom are used for collecting from the come out heat of material of hot cyclone separator discharge port.Produce magnesia unslacked with reflecting kiln and compare, single cover throughput of the utility model device improves greatly, and single cover annual capacity can reach 850kt, can replace existing more than 600 covers with the device that 10-15 overlaps this utility model and have the reflecting kiln device now; Hear rate is low, and every t light calcined magnesia consumption only consumes the 150kg standard coal equivalent, practices thrift 90kg standard coal equivalent/t product than reflecting kiln; Magnesite resource is fully used, and every t light calcined magnesia consumption consumes raw ore 2.05t, practices thrift the nearly 1t/t product of magnesite; Level of automation is high; Reduce and pollute, the exhaust gas discharged dust content is all at 30mg/Nm
3Below; Light calcined magnesia active good, the active oxidation Mg content improves 1 13 point.
Description of drawings
Fig. 1 is the structural representation that the semidrying of the utility model is produced the device of alumina clinker;
Embodiment
A kind of light-magnesite powder roasting assembly; As shown in Figure 1, comprise venturi drier 5, cyclonic separator 10, first stage suspension preheater 13, secondary suspended preheater 16, calcining furnace 19, hot cyclone separator 20, one-level aheat exchanger 24, secondary aheat exchanger 27, three stage countercurrent interchanger 32, first fluidizing cooler 35, second fluidizing cooler 36, electrostatic precipitator 40, the 51, the 4th burning station, the 50, the 3rd burning station, 49, the second burning station, the first burning station 52, the first air feed machine 37, electrostatic precipitator 40, second transfer roller 42, the 3rd transfer roller 43, pneumatic conveyer 47, the second air feed machine 48, blower fan 45, chimney 46; It is characterized in that: the air outlet of moisture eliminator 5 is communicated with the inlet mouth of cyclonic separator 10 through pipeline; The inlet mouth of moisture eliminator 5 is communicated with the air outlet of first stage suspension preheater 13 through U type pipeline; The inlet mouth of first stage suspension preheater 13 is communicated with the air outlet of secondary suspended preheater 16 through pipeline; The inlet mouth of secondary suspended preheater 16 is communicated with the air outlet of hot cyclone separator 20 through pipeline, and the inlet mouth of hot cyclone separator 20 is communicated with the air outlet of calcining furnace 19 through pipeline.Wherein cyclonic separator 10 and hot cyclone separator 20 are as fly-ash separator.
In the said apparatus; The inlet mouth of calcining furnace 19 is communicated with one-level aheat exchanger 24 air outlets through U type pipeline; One-level aheat exchanger 24 inlet mouths are communicated with secondary aheat exchanger 27 air outlets through U type pipeline; Secondary aheat exchanger 27 inlet mouths are communicated with three stage countercurrent interchanger, 32 air outlets through pipeline, and three stage countercurrent interchanger, 32 inlet mouths are communicated with the outlet of atmosphere first fluidizing cooler 35, second fluidizing cooler 36 respectively.
In the said apparatus; Cyclonic separator 10 discharge ports are communicated with the escape pipe of secondary suspended preheater 16 through pipeline; The discharge port of first stage suspension preheater 13 is communicated with the escape pipe of hot cyclone separator 20 through pipeline, and the discharge port of secondary suspended preheater 16 is communicated with the opening for feed of calcining furnace 19 through pipeline.
In the said apparatus; The discharge port of hot cyclone separator 20 is communicated with U type pipeline between one-level aheat exchanger 24 inlet mouths and secondary aheat exchanger 27 air outlets through connecting pipe; Connecting pipe and U type pipeline are provided with the 8th loop expansion pipe the 22, the 11 loop expansion pipe the 30, the 12 loop expansion pipe 31; One-level aheat exchanger 24 discharge ports are communicated with three stage countercurrent interchanger, 32 escape pipes through pipeline; Secondary aheat exchanger 27 is communicated with three stage countercurrent interchanger, 32 inlet pipe through pipeline, and three stage countercurrent interchanger, 32 discharge ports pass through pipeline and are communicated with first fluidizing cooler 35, second fluidizing cooler, 36 opening for feeds.
In the said apparatus, cyclonic separator 10 air outlets are communicated with electrostatic precipitator 40 inlet mouths, and electrostatic precipitator 40 air outlets are communicated with dual-gripper centrifugal fan 45 inlet mouths, and centrifugal second ventilator of dual-gripper 45 air outlets are communicated with chimney 46 inlet mouths.Electrostatic precipitator 40 discharge ports are communicated with air lift mud pump 47 opening for feeds through air flume formula second transfer roller 42, the 3rd transfer roller 43; Air lift mud pump 47 inlet mouths are communicated with Roots's drum-type second air feed machine 48 air outlets through pipeline, and air lift mud pump 47 discharge ports are communicated with one-level aheat exchanger 24 inlet mouths through pipeline.
In the said apparatus, the air outlet at the first burning station 49 is through pipeline and the U type pipe connection that is connected first stage suspension preheater 13 air outlets and moisture eliminator 5 inlet mouths.The air outlet at the second burning station 50 and the 3rd burning station 51 is respectively through pipeline and the U type pipe connection that is connected first step aheat exchanger 24 air outlets and calcining furnace 19 inlet mouths.The 4th burning station 52 siphunculus roads and the U type pipe connection that is connected secondary aheat exchanger 27 air outlets and one-level aheat exchanger 24 inlet mouths.Said moisture eliminator 5 is venturi drier or oven dry beater.
In the said apparatus, be provided with feeding system before the venturi drier 5, feeding system is made up of feed bin 1, valve 2, feeding machine 3, first transfer roller 4.
Be equiped with first loop expansion pipe 6 and second loop expansion pipe 7 on the connecting pipeline between venturi drier 5 air outlets and cyclonic separator 10 inlet mouths respectively.
Be equiped with the 3rd loop expansion pipe 8 and the 4th loop expansion pipe 9 on the connecting pipeline between first stage suspension preheater 13 air outlets and venturi drier 5 inlet mouths respectively.
Connecting tube between cyclonic separator 10 discharge ports and secondary suspended preheater 16 escape pipes is provided with first air locking device 11 and the 5th loop expansion pipe 12.
Establish second air locking device 14 and the 6th loop expansion pipe 15 on the connecting tube between first stage suspension preheater 13 discharge ports and hot cyclone separator 20 escape pipes.
Connecting tube between hot cyclone separator 20 discharge ports and secondary aheat exchanger 27 air outlets is provided with the 4th air locking device 21 and the 8th loop expansion pipe 22.
Be equiped with the 3rd air locking device 17 and the 7th loop expansion pipe 18 on the connecting tube between secondary suspended preheater 16 discharge ports and calcining furnace 19 opening for feeds respectively.
Be equiped with the 9th loop expansion pipe 23 on the U type pipeline between one-level aheat exchanger 24 air outlets and calcining furnace 19 inlet mouths.
Be equiped with the 11 loop expansion pipe 30 and the 12 loop expansion pipe 31 respectively on the U type pipeline between secondary aheat exchanger 27 air outlets and one-level aheat exchanger 24 inlet mouths.
Be equiped with the 5th air locking device 25 and the tenth loop expansion pipe 26 respectively on the connecting tube between one-level aheat exchanger 24 discharge ports and three stage countercurrent interchanger, 32 escape pipes.
Be equiped with the 6th air locking device 28 and the 13 loop expansion pipe 29 respectively on the connecting tube between secondary aheat exchanger 27 discharge ports and three stage countercurrent interchanger, 32 inlet pipe.
Be equiped with the 7th air locking device 33 and the 14 loop expansion pipe 34 respectively on the connecting tube between three stage countercurrent interchanger, 32 discharge ports and first fluidizing cooler 35, second fluidizing cooler, 36 feed-pipes.
Be equiped with the 15 loop expansion pipe 38 and the 16 loop expansion pipe 39 respectively on the connecting tube between cyclonic separator 10 air outlets and electrostatic precipitator 40 inlet mouths.
Establish the 17 loop expansion pipe 44 on the connecting tube between electrostatic precipitator 40 air outlets and blower fan 45 blast inlets.
Establish the 8th air locking device 41 on the connecting tube between electrostatic precipitator 40 discharge ports and second transfer roller, 42 opening for feeds.
Tornado dust collector among the utility model embodiment, hot cyclone separator, calcining furnace, aheat exchanger, its angle of taper are the 60-65 degree.
Feed bin volume among the utility model embodiment is 70 m
3
Feeding machine among the utility model embodiment is a constant feeder, and its specification is B1400 * 8150mm.
First transfer roller among the utility model embodiment revolves transfer roller for the lock conch, and its specification is Φ 630 * 3200mm.
Moisture eliminator among the utility model embodiment is a venturi drier, and its specification is Φ 4200/ Φ 3250 * 13220 mm.
The specification of the cyclonic separator among the utility model embodiment is Φ 4800 * 9861 mm.
The specification of first suspended preheater among the utility model embodiment is Φ 5850 * 12156mm.
The specification of second suspended preheater among the utility model embodiment is Φ 6670 * 13919mm.
The specification of the calcining furnace among the utility model embodiment is Φ 6760 * 19500mm.
The specification of the hot cyclone separator among the utility model embodiment is Φ 7360 * 15572 mm.
The specification of the one-level aheat exchanger among the utility model embodiment is Φ 4900 * 10163 mm.
The specification of the secondary aheat exchanger among the utility model embodiment is Φ 4210 * 8864 mm.
The specification of three stage countercurrent interchanger among the utility model embodiment is Φ 3480 * 7075 mm.
First, second water cooler among the utility model embodiment is a fluidizing cooler, and its specification is identical, is 10300 (L) * 2040 (W) * 1900 (H) mm.
First, second air feed machine among the utility model embodiment is a Root's blower, and its specification is respectively Q=46.7m
3/ min, P=24.5kPa; 46.2m
3/ min, 29.4kPa.
Fly-ash separator among the utility model embodiment is an electrostatic precipitator, and its specification is S=170 m
2
Second, third transfer roller among the utility model embodiment is all the air flume transfer roller, and its specification is respectively B300 * 13200mm and B500 * 8500mm.
Blower fan among the utility model embodiment is the dual-gripper centrifugal fan, and its specification is Q=425000m
3/ h, P=9.32kPa.
Chimney among the utility model embodiment is a Steel Stack, and its specification is Φ 2800 * 62000 mm.
Pneumatic conveyer among the utility model embodiment is an air lift mud pump, and its specification is Φ 1000 * 3500 mm.
The thermal value at the burning of first, second, third, fourth among the utility model embodiment station is respectively Q=33 * 10
6KJ/h, Q=343 * 10
6KJ/h, Q=13 * 10
6KJ/h and Q=33 * 10
6KJ/h, the fuel of employing are geseous fuel.
Among the utility model embodiment first, second, third, fourth, the 5th, the 6th, the 7th, the 8th, the 9th, the tenth, the 11, the 12, the 13, the 14, the 15, the 16, the 17 loop expansion pipe are according to purposes and performance; Can be that the steel loop expansion pipe also can be the fabric loop expansion pipe; Can be with liner also can not be with liner, its specification is respectively Φ 3280mm, Φ 3280mm, Φ 3150mm, Φ 3150mm, Φ 660mm, Φ 660mm, Φ 660mm, Φ 760mm, Φ 2450mm, Φ 550mm, Φ 2150mm, Φ 2360mm, Φ 660mm, Φ 660mm, Φ 2400mm, Φ 2400mm, Φ 2400mm.
The first, second, third, fourth, the 5th, the 6th, the 7th, the 8th air locking device among the utility model embodiment is manual weight list flap valve, and its specification is respectively Φ 660mm, Φ 660mm, Φ 660mm, Φ 760mm, Φ 660mm, Φ 660mm, Φ 660mm, Φ 400mm.
The magnesia unslacked of the high energy efficiency magnesite breeze roasting assembly among the utility model embodiment has a daily output of 1500t.
Single cover throughput of the utility model device improves greatly, and single cover annual capacity can reach 850kt; Hear rate is low, and every t light calcined magnesia consumption only consumes the 150kg standard coal equivalent, practices thrift 90kg standard coal equivalent/t product than reflecting kiln; Magnesite resource is fully used, and every t light calcined magnesia consumption consumes raw ore 2.05t, practices thrift the nearly 1t/t product of magnesite; Level of automation is high; Reduce and pollute, the exhaust gas discharged dust content is all at 30mg/Nm
3Below; Light calcined magnesia active good, the active oxidation Mg content improves 1 13 more than the point.
Claims (2)
1. a light-magnesite powder roasting assembly comprises moisture eliminator (5), cyclonic separator (10), first stage suspension preheater (13), secondary suspended preheater (16), calcining furnace (19), hot cyclone separator (20), one-level aheat exchanger (24), secondary aheat exchanger (27), three stage countercurrent interchanger (32), first fluidizing cooler (35), second fluidizing cooler (36), electrostatic precipitator (40), the first burning station (49), the second burning station (50), the 3rd burning station (51), the 4th burning station (52), the first air feed machine (37), electrostatic precipitator (40), second transfer roller (42), the 3rd transfer roller (43), pneumatic conveyer (47), the 3rd air feed machine (48), blower fan (45), chimney (46) and feeding system; It is characterized in that: the air outlet of moisture eliminator (5) is communicated with the inlet mouth of cyclonic separator (10) through pipeline; The inlet mouth of moisture eliminator (5) is communicated with the air outlet of first stage suspension preheater (13) through U type pipeline; The inlet mouth of first stage suspension preheater (13) is communicated with the air outlet of secondary suspended preheater (16) through pipeline; The inlet mouth of secondary suspended preheater (16) is communicated with the air outlet of hot cyclone separator (20) through pipeline, and the inlet mouth of hot cyclone separator (20) is communicated with the air outlet of calcining furnace (19) through pipeline;
In the said apparatus; The inlet mouth of calcining furnace (19) is communicated with one-level aheat exchanger (24) air outlet through U type pipeline; One-level aheat exchanger (24) inlet mouth is communicated with secondary aheat exchanger (27) air outlet through U type pipeline; Secondary aheat exchanger (27) inlet mouth is communicated with three stage countercurrent interchanger (32) air outlets through pipeline, and three stage countercurrent interchanger (32) inlet mouths are communicated with the outlet of atmosphere first fluidizing cooler (35), second fluidizing cooler (36) respectively;
In the said apparatus; Cyclonic separator (10) discharge port is communicated with the escape pipe of secondary suspended preheater (16) through pipeline; The discharge port of first stage suspension preheater (13) is communicated with the escape pipe of hot cyclone separator (20) through pipeline, and the discharge port of secondary suspended preheater (16) is communicated with the opening for feed of calcining furnace (19) through pipeline;
In the said apparatus; The discharge port of hot cyclone separator (20) is communicated with U type pipeline between one-level aheat exchanger (24) inlet mouth and the secondary aheat exchanger air outlet through connecting pipe; Connecting pipe and U type pipeline are provided with the 8th loop expansion pipe (22), the 11 loop expansion pipe (30), the 12 loop expansion pipe (31); One-level aheat exchanger (24) discharge port is communicated with three stage countercurrent interchanger (32) escape pipes through pipeline; Secondary aheat exchanger (27) is communicated with three stage countercurrent interchanger (32) inlet pipe through pipeline, and three stage countercurrent interchanger (32) discharge ports are communicated with first fluidizing cooler (35), second fluidizing cooler (36) opening for feed through pipeline;
In the said apparatus; Cyclonic separator (10) air outlet is communicated with electrostatic precipitator (40) inlet mouth; Electrostatic precipitator (40) air outlet is communicated with centrifugal second ventilator of dual-gripper (45) inlet mouth, and centrifugal second ventilator of dual-gripper (45) air outlet is communicated with chimney (46) inlet mouth; Electrostatic precipitator (40) discharge port is communicated with air lift mud pump (47) opening for feed through air flume formula second transfer roller (42), the 3rd transfer roller (43); Air lift mud pump (47) inlet mouth is communicated with Root's blower (48) air outlet through pipeline, and air lift mud pump (47) discharge port is communicated with one-level aheat exchanger (24) inlet mouth through pipeline;
In the said apparatus; The air outlet at the first burning station (49) is through pipeline and the U type pipe connection that is connected first stage suspension preheater (13) air outlet and moisture eliminator (5) inlet mouth, and the air outlet at the second burning station (50) and the 3rd burning station (51) is respectively through pipeline and the U type pipe connection that is connected one-level aheat exchanger (24) air outlet and calcining furnace (19) inlet mouth; The 4th burning station (52) siphunculus road and the U type pipe connection that is connected secondary aheat exchanger (27) air outlet and one-level aheat exchanger (24) inlet mouth.
2. a kind of light-magnesite powder roasting assembly according to claim 1 is characterized in that being equiped with first loop expansion pipe (6) and second loop expansion pipe (7) respectively on the connecting pipeline between moisture eliminator (5) air outlet and cyclonic separator (10) inlet mouth;
Be equiped with the 3rd loop expansion pipe (8) and the 4th loop expansion pipe (9) respectively on the connecting pipeline between first stage suspension preheater (13) air outlet and venturi drier (5) inlet mouth;
Connecting tube between cyclonic separator (10) discharge port and secondary suspended preheater (16) escape pipe is provided with first air locking device (11) and the 5th loop expansion pipe (15);
Establish second air locking device (14) and the 6th loop expansion pipe (12) on the connecting tube between first stage suspension preheater (13) discharge port and hot cyclone separator (20) escape pipe;
Connecting tube between hot cyclone separator (20) discharge port and secondary aheat exchanger (27) air outlet is provided with the 4th air locking device (21) and the 8th loop expansion pipe (22);
Be equiped with the 3rd air locking device (17) and the 7th loop expansion pipe (18) respectively on the connecting tube between secondary suspended preheater (16) discharge port and calcining furnace (19) opening for feed;
Be equiped with the 9th loop expansion pipe (23) on the U type pipeline between one-level aheat exchanger (24) air outlet and calcining furnace (19) inlet mouth;
Be equiped with the 11 loop expansion pipe (30) and the 12 loop expansion pipe (31) respectively on the U type pipeline between secondary aheat exchanger (27) air outlet and one-level aheat exchanger (24) inlet mouth;
Be equiped with the 5th air locking device (25) and the tenth loop expansion pipe (26) respectively on the connecting tube between one-level aheat exchanger (24) discharge port and three stage countercurrent interchanger (32) escape pipes;
Be equiped with the 6th air locking device (28) and the 13 loop expansion pipe (29) respectively on the connecting tube between secondary aheat exchanger (27) discharge port and three stage countercurrent interchanger (32) inlet pipe;
Be equiped with the 7th air locking device (33) and the 14 loop expansion pipe (34) respectively on the connecting tube between three stage countercurrent interchanger (32) discharge ports and first fluidizing cooler (35), second fluidizing cooler (36) feed-pipe;
Be equiped with the 15 loop expansion pipe (38) and the 16 loop expansion pipe (39) respectively on the connecting tube between cyclonic separator (10) air outlet and electrostatic precipitator (40) inlet mouth;
Establish the 17 loop expansion pipe (44) on the connecting tube between electrostatic precipitator (40) air outlet and blower fan (45) blast inlet;
Establish the 8th air locking device (41) on the connecting tube between electrostatic precipitator (40) discharge port and second transfer roller (42) opening for feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201637850U CN202543074U (en) | 2012-04-18 | 2012-04-18 | Calcining device for producing light calcined magnesia powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201637850U CN202543074U (en) | 2012-04-18 | 2012-04-18 | Calcining device for producing light calcined magnesia powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543074U true CN202543074U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201637850U Withdrawn - After Issue CN202543074U (en) | 2012-04-18 | 2012-04-18 | Calcining device for producing light calcined magnesia powder |
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| Country | Link |
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| CN (1) | CN202543074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373822A (en) * | 2012-04-18 | 2013-10-30 | 沈阳鑫博工业技术发展有限公司 | Light calcined magnesia powder calcination device |
| CN108118142A (en) * | 2017-12-29 | 2018-06-05 | 营口益嘉镁业科技有限公司 | A kind of suspension flash decomposes and homogenizing processing technique |
| CN109020265A (en) * | 2018-08-15 | 2018-12-18 | 沈阳化工大学 | A kind of air high temperature preheating technique raising light-calcined magnesite product high yield method |
-
2012
- 2012-04-18 CN CN2012201637850U patent/CN202543074U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373822A (en) * | 2012-04-18 | 2013-10-30 | 沈阳鑫博工业技术发展有限公司 | Light calcined magnesia powder calcination device |
| CN103373822B (en) * | 2012-04-18 | 2015-06-24 | 沈阳鑫博工业技术股份有限公司 | Light calcined magnesia powder calcination device |
| CN108118142A (en) * | 2017-12-29 | 2018-06-05 | 营口益嘉镁业科技有限公司 | A kind of suspension flash decomposes and homogenizing processing technique |
| CN109020265A (en) * | 2018-08-15 | 2018-12-18 | 沈阳化工大学 | A kind of air high temperature preheating technique raising light-calcined magnesite product high yield method |
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