CN209456094U - A kind of Aluminium hydroxide roasting furnace system - Google Patents
A kind of Aluminium hydroxide roasting furnace system Download PDFInfo
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- CN209456094U CN209456094U CN201822122235.4U CN201822122235U CN209456094U CN 209456094 U CN209456094 U CN 209456094U CN 201822122235 U CN201822122235 U CN 201822122235U CN 209456094 U CN209456094 U CN 209456094U
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- aluminium hydroxide
- expansion tank
- roasting furnace
- outlet side
- discharge end
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Abstract
The utility model discloses a kind of Aluminium hydroxide roasting furnace systems, including the heating system for heated material, the feed inlet that is connect with heating system, for filtering the gray back transportation system of dust, the expansion tank for separating low temperature gas-solid mixture, premix reactor, the cooling system for cooling down material for mixing high-temperature material and low-temperature material, and the discharge port connecting with cooling system；The inlet end of gray back transportation system is connected to the outlet side of heating system, the discharge end of gray back transportation system is connected to the feed end of expansion tank, expansion tank and the discharge end of heating system are all connected to premix reactor, and the discharge end and outlet side for premixing reactor are all connected to cooling system.The cryogenic gas entered in heating system can be made to reduce by the way that expansion tank is arranged, reduce the thermic load of heating system；The temperature of charge into cooling system can be made integrally to reduce by setting premix reactor, reduce the refrigeration duty of cooling system, integrally reduce the energy consumption in Aluminium hydroxide roasting furnace system.
Description
Technical field
The utility model relates to Aluminium hydroxide roasting technical fields, more specifically to a kind of Aluminium hydroxide roasting furnace
System.
Background technique
In aluminum oxide production process, the type of furnace that the country mainly uses at present is gaseous pollutant control, maturing temperature
General control can just produce qualified metallurgical-grade aluminum oxide product at 1000~1100 DEG C.
The principal element for determining maturing temperature is the index of cutting down according to the circumstance in product aluminium oxide, and a large amount of test data proves and reason
By analytical proof: under state-of-the-art, the final principal element for influencing product quality first is that gray back material enters roaster
Position (former design position is back to the pre- heat separator of second level whirlwind, about 500~550 DEG C of temperature) in system, due to gray back object
The temperature of material is lower, and high temperature or enough reaction time is needed to can be only achieved the requirement of end product quality.Therefore, only logical
The requirement for improving the temperature for roasting main furnace to meet product quality is crossed, causes the energy for needing to consume in roasting process more, suspends
Temperature in roaster can be relatively high, to generate a large amount of nitrogen oxides, pollutes environment.
It is current art technology to reduce nitrogen oxides in conclusion how to reduce the energy consumed in roasting process
Personnel's urgent problem to be solved.
Utility model content
In view of this, can reduce and roast the purpose of the utility model is to provide a kind of Aluminium hydroxide roasting furnace system
The energy consumed in journey.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of Aluminium hydroxide roasting furnace system, including for heated material heating system, connect with the heating system
Feed inlet, for filtering the gray back transportation system of dust, the expansion tank for separating low temperature gas-solid mixture, for mixing height
Premix reactor, the cooling system for cooling down material of warm material and low-temperature material, and connect with the cooling system
Discharge port；The inlet end of the gray back transportation system is connected to the outlet side of the heating system, the gray back transportation system
Discharge end is connected to the feed end of the expansion tank, and the discharge end of the expansion tank and the heating system is all connected to described pre-
Mixed reactor, the discharge end of the premix reactor and outlet side are all connected to the cooling system.
Preferably, the heating system includes the suspension roasting for the cyclone preheater of heated material and for roasting material
Burn furnace；The feed inlet is connected to the cyclone preheater, and it is pre- that the inlet end of the gray back transportation system is connected to the whirlwind
The outlet side of hot device, the discharge end of the cyclone preheater are connected to the feed end of the premix reactor, the suspension roasting
The inlet end of furnace is connected to the outlet side of the cooling system.
Preferably, the gray back transportation system includes deduster for filtering dust and for transporting low temperature gas-solid mixing
The conveying device of object, the inlet end of the deduster are connected to the outlet side of the cyclone preheater, the conveying device into
Material end is connected to the discharge end of the deduster, and the discharge end of the conveying device is connected to the feed end of the expansion tank.
Preferably, the conveying device includes for conveying the air-driven chute of material, for providing the centrifugal high pressure of wind-force
Blower, the discharge end of the deduster are connected to the feed end of the air-driven chute, and the centrifugal high pressure fan is set to described
On air-driven chute.
Preferably, it is equipped between the air-driven chute and the expansion tank and is mentioned for promoting the strength of gas-solid mixture pressure
Pump is risen, is connected with roots blower on the air lift mud pump.
Preferably, the control for controlling the load of the deduster is equipped between the deduster and the air-driven chute
Valve.
Preferably, the control valve includes the hand operated gate valve connecting with the deduster and connects with the air-driven chute plate
The electronic star-shaped dust-discharging valve connect, the hand operated gate valve are connect with the electronic star-shaped dust-discharging valve.
Preferably, the expansion tank includes cabinet and the ash bucket for being connected to the lower box, the outlet of the expansion tank
Mouth is equipped with bag filter.
Preferably, venturi drier is provided between the feed inlet and the cyclone preheater.
Preferably, the premix reactor include premixer for premixing high/low temperature material and for by high-temperature material and
The reaction chamber that low-temperature material is further mixed, and for the gas chamber of air inlet, the discharge end of the premixer is connected to institute
State the feed end of reaction chamber, the discharge end of the reaction chamber and outlet side are connect with the cooling system, the premixer and
The reaction chamber is connect with the gas chamber.
A kind of Aluminium hydroxide roasting furnace system provided by the utility model, including for heated material heating system,
The feed inlet being connect with heating system, for filtering the gray back transportation system of dust, for separating the swollen of low temperature gas-solid mixture
Swell, premix reactor, the cooling system for cooling down material for mixing high-temperature material and low-temperature material, and with cooling
The discharge port of system connection；The inlet end of gray back transportation system is connected to the outlet side of heating system, and gray back transportation system goes out
Material end is connected to the feed end of expansion tank, and the discharge end of expansion tank and heating system is all connected to premix reactor, premix reaction
The discharge end of device and outlet side are all connected to cooling system.
Low-temperature material is added by feed inlet in Aluminium hydroxide roasting furnace system provided by the utility model, and low-temperature material passes through
Become high-temperature material after heating system, high-temperature material subsequently enters premix reactor；Gas at normal temperature via cooling system air inlet
End enter after enter heating system, due to wind-force act on, the high-temperature gas after heating system can carry a part of material into
Enter gray back transportation system, gray back transportation system can become low temperature gas-solid mixture after filtering, low temperature gas-solid mixture via
Gray back transportation system is transmitted in expansion tank, and cryogenic gas is discharged using the gas solid separation function of itself in expansion tank, low temperature object
Material enters premix reactor by the discharge end of expansion tank；At this time from the temperature for the low-temperature material being discharged to premix reactor in expansion tank
Degree without heating lower than the temperature for the high-temperature material being discharged in heating system to premix reactor due to premixing in reactor
High-temperature material and low-temperature material by mixing after enter cooling system, finished product materials are discharged after the cooling of cooling system
Discharge port.
It can be made by the way that expansion tank is arranged between gray back transportation system and cooling system by the low of gray back transportation system
Gas discharge in wet solid mixture, reduces the cryogenic gas entered in cooling system, is added with reducing to enter in cooling system
Cryogenic gas in hot systems reduces the thermic load of heating system；It is pre- by being arranged between heating system and cooling system
Mixed reactor, after mixing with high-temperature material the temperature of charge into cooling system can integrally reduced low-temperature material, to drop
The low refrigeration duty of cooling system, integrally reduces the energy consumption in Aluminium hydroxide roasting furnace system provided herein,
To reduce the generation of nitrogen oxides.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the schematic diagram of Aluminium hydroxide roasting furnace system provided by the utility model；
Fig. 2 is the schematic diagram of expansion tank provided by the utility model.
In Fig. 1-2:
1- deduster, 2- centrifugal high pressure fan, 3- expansion tank, 4- one cyclonic preheater, 5- three-level cyclone preheater, 6-
Second level cyclone preheater, 7- suspension roaster, 8- venturi drier, 9- feed inlet, 10- three-level cooling cyclone, 11- air inlet
Mouth, 12- discharge port, 13- Category Four cyclone cooler, 14- compressed air, 15- gas chamber, 16- hand operated gate valve, 17- are electronic star-like
Unloading valve, 18- air-driven chute, 19- air lift mud pump, 20- roots blower, 21- one cyclonic cooler, 22- second level whirlwind are cold
But device, the premixer 23-, 24- reaction chamber, the first outlet side 25-, 26- cabinet, 27- ash bucket, the first discharge end of 28-, 29- first
Feed end.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The core of the utility model is to provide a kind of Aluminium hydroxide roasting furnace system, can reduce consuming in roasting process
Energy.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the schematic diagram of Aluminium hydroxide roasting furnace system provided by the utility model；Fig. 2
For the schematic diagram of expansion tank provided by the utility model.
A kind of Aluminium hydroxide roasting furnace system, including for heated material heating system, connect with heating system into
Material mouth 9, for filtering the gray back transportation system of dust, the expansion tank 3 for separating low temperature gas-solid mixture, for mixing high temperature
Premix reactor, the cooling system for cooling down material of material and low-temperature material, and the discharge port being connect with cooling system
12；The inlet end of gray back transportation system is connected to the outlet side of heating system, and the discharge end of gray back transportation system is connected to expansion
The discharge end of the feed end of case 3, expansion tank 3 and heating system be all connected to premix reactor, premix reactor discharge end and
Outlet side is all connected to cooling system.
It should be noted that can be connected by pipeline between above-mentioned each system, this Shen since system equipment is larger
Please provided by the air-flow operation of Aluminium hydroxide roasting furnace system can be driven using blower, the specific location of blower setting can be with
For the outlet side of gray back transportation system, this outlet side is also used as the outlet of Aluminium hydroxide roasting furnace system provided herein
End.
Low-temperature material, low-temperature material warp is added by feed inlet 9 in Aluminium hydroxide roasting furnace system provided by the utility model
Become high-temperature material after crossing heating system, high-temperature material subsequently enters premix reactor；Gas at normal temperature via cooling system into
Port 11 enters heating system after entering, and since wind-force acts on, the high-temperature gas after heating system can carry a part of object
Material enters gray back transportation system, and gray back transportation system can become low temperature gas-solid mixture, low temperature gas-solid mixture after filtering
It being transmitted in expansion tank 3 via gray back transportation system, cryogenic gas is discharged using the gas solid separation function of itself in expansion tank 3,
Low-temperature material enters premix reactor by the discharge end of expansion tank 3；Low temperature from being discharged to premix reactor in expansion tank 3 at this time
The temperature of material without heating lower than the temperature for the high-temperature material being discharged in heating system to premix reactor due to premixing
High-temperature material and low-temperature material in reactor enter cooling system after mixing, by finished product after the cooling of cooling system
Discharge port 12 is discharged in material.
It can be made by the way that expansion tank 3 is arranged between gray back transportation system and cooling system by the low of gray back transportation system
Gas discharge in wet solid mixture, reduces the cryogenic gas entered in cooling system, is added with reducing to enter in cooling system
Cryogenic gas in hot systems reduces the thermic load of heating system；It is pre- by being arranged between heating system and cooling system
Mixed reactor, after mixing with high-temperature material the temperature of charge into cooling system can integrally reduced low-temperature material, to drop
The low refrigeration duty of cooling system, integrally reduces the energy consumption in Aluminium hydroxide roasting furnace system provided herein,
To reduce the generation of nitrogen oxides.
On the basis of the above embodiments, heating system includes for the cyclone preheater of heated material and for calcining matter
The suspension roaster 7 of material；Feed inlet 9 is connected to cyclone preheater, and the inlet end of gray back transportation system is connected to cyclone preheater
Outlet side, the discharge end of cyclone preheater is connected to the feed end of premix reactor, and the inlet end of suspension roaster 7 is connected to
The outlet side of cooling system.
It should be noted that it is that raw material obtains at heating that the mode of the preheating of cyclone preheater, which is by way of air blast,
Reason, so, not only with the trend of material in cyclone preheater, also with the trend of air-flow, the cyclone preheater generally used
Discharge end be set to the lower part of cyclone preheater, the feed end of cyclone preheater is set to the side surface upper part of cyclone preheater,
And the outlet side of cyclone preheater is set in the upper top of cyclone preheater.Material when heating, can be sufficiently sharp
Next stage equipment is entered by the discharge end of cyclone preheater with the gravity and centrifugal force of material.
The air inlet 11 of Aluminium hydroxide roasting furnace system provided herein can be set on cooling system, atmosphere into
Material can be cooled down after entering cooling system.
Wind-force source inside cyclone preheater from suspension roaster 7 inlet end, inside cooling system
Gas is absorbed by the heat of the mixed material of premix reactor, so the outlet side of cooling system is connected to suspension roasting
The inlet end of furnace 7 is for the inlet end of suspension roaster 7 is connected to atmosphere, the gas temperature of entrance in suspension roaster 7
Degree is higher, can reduce the thermic load in suspension roaster 7.
Arrangement above is it can be concluded that gas trend inside Aluminium hydroxide roasting furnace system provided herein are as follows: by this
The air inlet 11 of Aluminium hydroxide roasting furnace system provided by applying enters air, and air reaches suspension roasting after cooling system
Furnace 7 is burnt, enters cyclone preheater later, is discharged into atmosphere after reaching gray back transportation system by the outlet side discharge of cyclone preheater.
In order to realize Multi-stage heating, to reach apparent heating effect and the heating temperature that achieves the goal, can use more
A concatenated form of cyclone preheater, i.e., using one cyclonic preheater 4, second level cyclone preheater 6 and the preheating of three-level whirlwind
Device 5.It is of course also possible to use the cyclone preheater of other quantity, as long as Multi-stage heating can be carried out to material.
Material enters one cyclonic preheater 4 by feed inlet 9, since above-mentioned cyclone preheater all has feed end, discharging
End and gas outlet, so connection type can be connected to the feed end of one cyclonic preheater 4, one cyclonic for feed inlet 9
The discharge end of preheater 4 is connected to the feed end of second level cyclone preheater 6, and the discharge end of second level cyclone preheater 6 is connected to outstanding
The feed end of floating roaster 7, the discharge end of suspension roaster 7 are connected to the feed end of three-level cyclone preheater 5, and three-level whirlwind is pre-
The discharge end of hot device 5 is connected to the feed end of premix reactor.The outlet side of one cyclonic preheater 4 is connected to gray back delivery system
The inlet end of system, being connected to for second level cyclone preheater 6 can connect in the inlet end of one cyclonic preheater 4, three-level whirlwind
The outlet side of preheater 5 is connected to the inlet end of second level cyclone preheater 6, and the outlet side of suspension roaster 7 is connected to three-level rotation
The inlet end of wind preheater 5.The above connection makes suspension roaster 7, one cyclonic preheater 4, second level cyclone preheater 6 and three
Local circulation is formed between grade cyclone preheater 5.
In order to realize multistage cooling, to reach apparent cooling effect and the cooling temperature that achieves the goal, can use more
A concatenated form of cooling cyclone uses one cyclonic cooler 21, second level cooling cyclone 22, three-level cooling cyclone
10 and Category Four cyclone cooler 13.It is of course also possible to use the cooling cyclone of other quantity, as long as can be carried out to material
Multistage is cooling.
Air inlet 11 is set to the inlet end of Category Four cyclone cooler 13, and the outlet side of Category Four cyclone cooler 13 is connected to
The inlet end of three-level cooling cyclone 10, the outlet side of three-level cooling cyclone 10 are connected to the air inlet of second level cooling cyclone 22
End, the outlet side of second level cooling cyclone 22 is connected to the inlet end of one cyclonic cooler 21, one cyclonic by connecting tube
The outlet side of cooler 21 is connected to the inlet end of suspension roaster 7, and the outlet side and discharge end for premixing reactor are all connected to
Connecting tube is brought into one cyclonic cooler 21 by gas flow.
On the basis of the above embodiments, gray back transportation system includes deduster 1 for filtering dust and for conveying
The conveying device of low temperature gas-solid mixture, the inlet end of deduster 1 are connected to the outlet side of cyclone preheater, conveying device into
Material end is connected to the discharge end of deduster 1, and the discharge end of conveying device is connected to the feed end of expansion tank 3.
It should be noted that deduster 1 is the equipment that dust is separated from flue gas, the performance of deduster 1 is used can
Drag losses and efficiency of dust collection when the gas flow of processing, gas are by deduster 1 are expressed, and deduster 1 is boiler and industry
Common facility in production.It is connect herein using deduster 1 with cyclone preheater, the inlet end for being specifically as follows deduster 1 connects
It is connected to the outlet side of one cyclonic preheater 4, deduster 1 can will enter the material dust inside deduster 1 and divide from gas
It separates out to reach conveying device, then is sent into expansion tank 3 by conveying device and is utilized again.
Deduster 1, which is arranged, will be discharged into subordinate equipment by the gas of deduster 1, can will be discharged by cyclone preheater
Gas in material dust be filtered, make to will be free from material dust in the gas by deduster 1, again by material dust
Secondary be transmitted in Aluminium hydroxide roasting furnace system provided herein can use Matter Transfer, reduce costs.
In a kind of embodiment about conveying device, conveying device include for convey the air-driven chute 18 of material,
For providing the centrifugal high pressure fan 2 of wind-force, the discharge end of deduster 1 is connected to the feed end of air-driven chute 18, centrifugal high pressure
Blower 2 is set on air-driven chute 18.
The dust that deduster 1 traps is transported to expansion tank 3 by air-driven chute 18, is in this transmission process
Dual-Phrase Distribution of Gas olid transmission process, since the wind that the centrifugal high pressure fan 2 being arranged on air-driven chute 18 is brought on air-driven chute 18 is
Cold wind can reduce the temperature of material in the process, enter premix reactor for material and prepare.
In view of equipment volume is larger, material transfer position is higher, is equipped between air-driven chute 18 and expansion tank 3 for mentioning
The air lift mud pump 19 of gas-solid mixture pressure is risen, is connected with roots blower 20 on air lift mud pump 19.
Air lift mud pump 19 is a kind of low-pressure air conveying equipment, is suitable for continuously, and conveying material dust is equably promoted,
Its conveying capacity is larger and hoisting depth is higher.It can replace elevator use, when hoisting depth is more than 30m using more
It is economical.The device structure is simple, convenient and reliable operation, no dust, and parts wear is small easy to repair.
Roots blower 20 belongs to positive displacement blower, and principle is performed relative motion in cylinder using two lobed rotors to compress
With the rotary compressor of conveying gas.This blower fan structure is simple, easily manufactured, and the gas suitable for low-pressure occasion conveys
And compression system.
In order to control the inventory exported in deduster 1, it can be equipped with control between deduster 1 and air-driven chute 18 and remove
The control valve of the load of dirt device 1.
The form of control valve can there are many, such as control valve include the hand operated gate valve 16 being connect with deduster 1 and with
The electronic star-shaped dust-discharging valve 17 of 18 plate of air-driven chute connection, hand operated gate valve 16 are connect with electronic star-shaped dust-discharging valve 17.
Hand operated gate valve 16 is also known as manual knife gate valve, knife-shape gate valve it to be that a kind of flashboard is in close contact always with valve seat close
The valve of envelope, principle are the round mouths that a latus rectum size is provided on flashboard, are opened and closed by flashboard so that round mouth is with logical on flashboard
The movement that diameter completely disengages and matches.Hand operated gate valve 16 is main control equipment.
The advantages of electronic star-shaped dust-discharging valve 17 is: stable working is reliable, discharging is uniformly accurate, structure optimization, small in size, close
Sealing property is good, easy to maintain, Portable energy-saving, long service life etc..It is also that drying, dust, particle, solid-handling equipment can not
One of equipment lacked.
The quantity of hand operated gate valve 16 and electronic star-shaped dust-discharging valve 17 can be 6 and to be arranged in a one-to-one correspondence, certainly, can also
Using the hand operated gate valve 16 and electronic star-shaped dust-discharging valve 17 of other quantity.
Optionally, the valve body of other forms, such as ball valve or butterfly valve etc. also can be used when necessary.
On the basis of the above embodiments, expansion tank 3 includes cabinet 26 and the ash bucket 27 for being connected to 26 lower part of cabinet, expansion
The gas outlet of case 3 is equipped with bag filter.
Material dust becomes the mixture of swiftly flowing gas and material dust, i.e. low temperature after air lift mud pump 19
Gas-solid mixture is directly entered in cabinet 26 after the first feed end 29 by expansion tank 3, and the space of cabinet 26 is relative to
The space of one feed end 29 is larger, and the gas-solid mixture flow velocity of high pressure rapidly drastically reduces, most of material impacting cabinet 26
Behind top, since the reduction of speed can be deposited in the ash bucket 27 of expansion tank 3.
Since the first outlet side 25 of expansion tank 3 is equipped with bag filter, the gas in cabinet 26 is in bag filter wind
It under the action of machine, can be moved into bag filter, the meeting short grained dust of entrainment portions in gas at this time, when little particle powder
When dirt is gathered in the thickness for reaching certain on deduster 1, bag filter can carry out blowback under the action of compressed air 14, instead
Dust after blowing can be fallen into the ash bucket 27 of expansion tank 3.
Ash bucket 27 is arranged in 26 lower part of cabinet of the expansion tank 3 of the present embodiment setting, can be to the material entered in expansion tank 3
Dust is collected, and is discharged by the first discharge end 28 of 27 lower part of ash bucket；And hydroxide provided herein is being discharged
While cold air in aluminium roaster system, bag filter is installed in the first outlet side 25 of expansion tank 3, makes full use of cloth
The blowback effect of bag dust collector, the little particle dust blowback for carrying gas mention while having filtered gas into expansion tank 3
The service efficiency of material has been risen, and has saved cost.
In view of containing certain moisture in material, venturi can be provided between feed inlet 9 and cyclone preheater
Drier 8, specifically, the inlet end of venturi drier 8 can be connected to the outlet side of second level cyclone preheater 6, in text
The feed end of drier 8 connects feed inlet 9 in mound, and the port of the outlet of venturi drier 8 and material is connected to level-one rotation
The feed end of wind preheater 4, makes the material entered in one cyclonic preheater 4 carry out preliminarily dried in advance, and venturi is dry
8 bodily form of device is small, gas-flow resistance is small, adapts to the pneumatic conveying dryer that dried material partial size is big and size distribution is wide, especially suitable for
Drying to aluminium hydroxide.
On the basis of the above embodiments, premix reactor includes the premixer for premixing high temperature material and low-temperature material
23 and the reaction chamber 24 for further being mixed high-temperature material and low-temperature material, and for the gas chamber 15 of air inlet, in advance
The discharge end of mixed room 23 is connected to the feed end of reaction chamber 24, and the discharge end of reaction chamber 24 and outlet side connect with cooling system
It connects, premixer 23 and reaction chamber 24 are connect with gas chamber 15.
It should be noted that high-temperature material is provided by heating system, low-temperature material is provided by expansion tank 3, high-temperature material with
Low-temperature material carries out preliminary mixing, reaction in premixer 23, increases low-temperature material temperature, and high-temperature material temperature reduces,
The mixture that the compressed air 14 entered later by gas chamber 15 carries two kinds of materials sufficiently reacts in reaction chamber 24, because entire anti-
Answering process is endothermic process, further reduced the temperature of high-temperature material, and improve the temperature of low-temperature material, is sufficiently increased
The time of contact of high-temperature material and low-temperature material reduces the thermic load of cooling system, so that the whole heat for reducing system disappears
Consumption, effectively improves efficiency of energy utilization.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Aluminium hydroxide roasting furnace system provided by the utility model is described in detail above.It is used herein
Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can be made to this utility model, these improve and repair
Decorations are also fallen into the protection scope of the utility model claims.
Claims (10)
1. a kind of Aluminium hydroxide roasting furnace system, which is characterized in that including the heating system and the heating for heated material
The feed inlet (9) of system connection, the gray back transportation system for filtering dust, the expansion tank for separating low temperature gas-solid mixture
(3), for mixing premix reactor, the cooling system for cooling down material of high-temperature material and low-temperature material, and with it is described
The discharge port (12) of cooling system connection；
The inlet end of the gray back transportation system is connected to the outlet side of the heating system, the discharging of the gray back transportation system
End is connected to the feed ends of the expansion tank (3), described in the discharge end of the expansion tank (3) and the heating system is all connected to
Reactor is premixed, the discharge end of the premix reactor and outlet side are all connected to the cooling system.
2. Aluminium hydroxide roasting furnace system according to claim 1, which is characterized in that the heating system includes for adding
The cyclone preheater of thermal material and suspension roaster (7) for roasting material；
The feed inlet (9) is connected to the cyclone preheater, and the inlet end of the gray back transportation system is connected to the whirlwind
The outlet side of preheater, the discharge end of the cyclone preheater are connected to the feed end of the premix reactor, the suspension roasting
The inlet end for burning furnace (7) is connected to the outlet side of the cooling system.
3. Aluminium hydroxide roasting furnace system according to claim 2, which is characterized in that the gray back transportation system includes using
In the deduster (1) of filtering dust and for the conveying device of transporting low temperature gas-solid mixture, the inlet end of the deduster (1)
It is connected to the outlet side of the cyclone preheater, the feed end of the conveying device is connected to the discharge end of the deduster (1),
The discharge end of the conveying device is connected to the feed end of the expansion tank (3).
4. Aluminium hydroxide roasting furnace system according to claim 3, which is characterized in that the conveying device includes for defeated
Send the air-driven chute (18) of material, the centrifugal high pressure fan (2) for providing wind-force, the discharge end connection of the deduster (1)
Feed end in the air-driven chute (18), the centrifugal high pressure fan (2) are set on the air-driven chute (18).
5. Aluminium hydroxide roasting furnace system according to claim 4, which is characterized in that the air-driven chute (18) with it is described
Air lift mud pump (19) for promoting gas-solid mixture pressure is equipped between expansion tank (3), on the air lift mud pump (19)
It is connected with roots blower (20).
6. Aluminium hydroxide roasting furnace system according to claim 5, which is characterized in that the deduster (1) and the wind
The control valve for controlling the load of the deduster (1) is equipped between dynamic chute (18).
7. Aluminium hydroxide roasting furnace system according to claim 6, which is characterized in that the control valve includes removing with described
The hand operated gate valve (16) of dirt device (1) connection and the electronic star-shaped dust-discharging valve (17) being connect with the air-driven chute (18) plate, institute
Hand operated gate valve (16) is stated to connect with the electronic star-shaped dust-discharging valve (17).
8. Aluminium hydroxide roasting furnace system according to claim 7, which is characterized in that the expansion tank (3) includes cabinet
(26) and it being connected to the ash bucket (27) of the cabinet (26) lower part, the air lift mud pump (19) is connected to the cabinet (26),
The first outlet side (25) of the expansion tank (3) is equipped with bag filter.
9. Aluminium hydroxide roasting furnace system according to claim 8, which is characterized in that the feed inlet (9) and the rotation
Venturi drier (8) are provided between wind preheater.
10. according to claim 1 to Aluminium hydroxide roasting furnace system described in 9 any one, which is characterized in that the premix is anti-
Answering device includes premixer (23) for premixing high temperature material and low-temperature material and for further being mixed high/low temperature material
The reaction chamber (24) of conjunction, and for the gas chamber (15) of air inlet, the discharge end of the premixer (23) is connected to the reaction chamber
(24) feed end, the discharge end of the reaction chamber (24) and outlet side are connect with the cooling system, the premixer
(23) it is connect with the gas chamber (15) with the reaction chamber (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122235.4U CN209456094U (en) | 2018-12-17 | 2018-12-17 | A kind of Aluminium hydroxide roasting furnace system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109336149A (en) * | 2018-12-17 | 2019-02-15 | 河南科达东大国际工程有限公司 | A kind of Aluminium hydroxide roasting furnace system |
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