CN213713998U - Alumina roasting cooling device - Google Patents
Alumina roasting cooling device Download PDFInfo
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- CN213713998U CN213713998U CN202022964842.2U CN202022964842U CN213713998U CN 213713998 U CN213713998 U CN 213713998U CN 202022964842 U CN202022964842 U CN 202022964842U CN 213713998 U CN213713998 U CN 213713998U
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Abstract
The utility model discloses an alumina roasting cooling device, which belongs to the field of alumina roasting and is used for secondary cooling of alumina discharged by a cyclone cooling system, comprises a fluidized bed cooler, is connected with the cyclone cooling system, and is provided with a first cooling module and a second cooling module; the first cooling module and the second cooling module use different cooling media; the cyclone separator is communicated with the upper part of the fluidized bed cooler and is used for purifying the fluidized gas discharged by the fluidized bed cooler; the air supplementing system is connected with the top of the cyclone separator and is provided with an air supplementing port; the air supply opening is communicated with the atmosphere; the heat exchanger is connected with the air supplementing system and is used for cooling the air conveyed by the air supplementing system; and the air blowing device is communicated with the lower part of the fluidized bed cooler and is used for conveying the air cooled by the heat exchanger into the fluidized bed cooler. The cooling device has simple structure and good cooling effect, and can save energy and protect environment.
Description
Technical Field
The utility model relates to an aluminium oxide calcination technical field especially relates to an aluminium oxide calcination cooling device.
Background
In the industrial production of alumina, roasting is the last step of the production process. The roasting process is that after being washed and filtered, the aluminum hydroxide slurry is sent into a roasting furnace for drying and preheating, and the preheated material enters the roasting furnace to complete the roasting operation; and cooling the roasted material by a cooling system to obtain a qualified alumina product. The roasting process of the alumina removes crystal water therein and forms a final alumina product. The calcined alumina is cooled by a cyclone cooling system, the temperature is usually above 250 ℃, and the calcined alumina cannot be directly sent to a packaging system. Secondary cooling via a fluidized bed cooler is also required for equipment and personnel safety.
In the fluidized bed cooler, cooling water and alumina are subjected to indirect heat exchange through the wall of the steel tube, so that the temperature of the alumina is reduced to below 90 ℃. The existing fluidized bed cooler has the defects of overhigh discharging temperature, poor cooling effect and nonuniform discharging particles caused by the back mixing of material particles in the fluidized bed cooler due to low heat exchange load. And the fluidized gas discharged from the fluidized bed cooler is separated by the cyclone separator and then directly discharged into the atmosphere, thus causing the waste of energy.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model provides an aluminium oxide calcination cooling device removes dust, supplyes the cooling back with fluidized bed cooler exhaust fluidization gas, returns the fluidized bed cooler as new fluidization gas again. The fluidized bed cooler is provided with two groups of cooling modules, different cooling media are used, and the cooling media are used for other aluminum oxide roasting procedures after heat exchange. The cooling device has the characteristics of simple structure, good cooling effect and energy conservation.
The utility model adopts the technical proposal that:
an alumina roasting cooling device for secondary cooling of alumina discharged from a cyclone cooling system, comprising:
the fluidized bed cooler is connected with the cyclone cooling system and is provided with a first cooling module and a second cooling module; the first cooling module and the second cooling module use different cooling media;
the cyclone separator is communicated with the upper part of the fluidized bed cooler and is used for purifying the fluidized gas discharged by the fluidized bed cooler;
the air supplementing system is connected with the top of the cyclone separator and is provided with an air supplementing port; the air supply opening is communicated with the atmosphere;
the heat exchanger is connected with the air supplementing system and is used for cooling the air conveyed by the air supplementing system;
and the air blowing device is communicated with the lower part of the fluidized bed cooler and is used for conveying the air cooled by the heat exchanger into the fluidized bed cooler.
The cooling device has simple structure and good cooling effect, and can save energy and protect environment.
In the alumina firing cooling device disclosed in the present application, the cooling device further includes:
the feeding device is provided with a feeding pipe, a feeding valve and a feeding temperature detector;
the feeding pipe is connected with the cyclone cooling system and the fluidized bed cooler and is used for conveying the alumina cooled by the cyclone cooling system to the fluidized bed cooler;
the feeding valve is arranged at the position, close to the pipe orifice of the fluidized bed cooler, of the feeding pipe and is used for controlling the feeding speed and the feeding amount of the alumina;
the feeding temperature detector is arranged at the position, close to the pipe orifice of the fluidized bed cooler, of the feeding pipe and used for detecting the feeding temperature of the alumina.
In the alumina firing cooling device disclosed in the present application, the cooling device further includes:
the discharging device is provided with a discharging pipe, a discharging valve and a discharging temperature detector;
the discharge pipe is positioned at the lower end of the fluidized bed cooler and is used for conveying the alumina cooled by the fluidized bed cooler;
the discharge valve is arranged at the position, close to the pipe orifice of the fluidized bed cooler, of the discharge pipe and is used for controlling the discharge speed and the discharge amount of the alumina;
and the discharge temperature detector is arranged at the position, close to the pipe orifice of the fluidized bed cooler, of the discharge pipe and is used for detecting the discharge temperature of the alumina.
In the alumina roasting cooling device disclosed by the application, the fluidized bed cooler comprises a cooling chamber, an air inlet chamber and an air outlet chamber;
the cooling chamber is positioned between the air inlet chamber and the air outlet chamber, and the first cooling module and the second cooling module are arranged in the cooling chamber;
the first cooling module and the second cooling module are both composed of heat exchange tubes which are staggered up and down;
the air inlet chamber is positioned at the lower part of the fluidized bed cooler and is connected with the air blowing device;
the air outlet chamber is positioned at the upper part of the fluidized bed cooler and is connected with the cyclone separator.
In the alumina roasting cooling device disclosed in the application, the fluidized bed cooler further comprises a distribution plate, wherein the distribution plate is arranged between the cooling chamber and the air inlet chamber along the horizontal direction and used for adjusting the wind direction of cooling wind entering the cooling chamber.
In the alumina calcination cooling device disclosed in the present application, the cooling device further includes an air duct.
In the alumina-calcining cooling apparatus disclosed in the present application, the air blowing device includes:
the air blower is used for conveying the cooled air to the air inlet chamber;
the pressure regulator is arranged on an inlet channel of the fluidized gas in the air inlet chamber and is used for regulating the pressure difference between the inside and the outside of the fluidized bed cooler;
and the flow controller is arranged on an inlet channel of the fluidizing gas of the air inlet chamber and is used for controlling the gas flow of the fluidizing gas entering the fluidized bed cooler.
The utility model has the advantages that:
the utility model provides an alumina roasting cooling device for overcome the problems of overhigh discharging temperature, poor cooling effect and energy waste of the existing alumina roasting cooling device, and is used for cooling the discharged alumina of a cyclone cooling system for the second time. The cooling device is simple in structure, and suitable feeding speed and feeding amount are controlled by setting the feeding temperature detector to detect the feeding temperature of the alumina. The flow controller and the distribution plate are adjusted to control the air quantity and the air direction entering the fluidized bed cooler through the feeding temperature, the feeding speed and the feeding quantity of the aluminum oxide, so that the fluidization is uniform and stable, no dead angle exists, the blowing-through phenomenon exists, and the optimal cooling effect is achieved. The air outlet of the cyclone separator is connected with an air supplementing system to supplement lost fluidized air, and the fluidized air mixed with clean air enters the heat exchanger, is cooled by the heat exchanger and then returns to the fluidized bed cooler by the air blowing equipment to be used as new fluidized air, so that the energy is saved, and the environment is protected. Two groups of cooling modules are arranged in the fluidized bed cooler, the two groups of cooling modules adopt different cooling media, one group of cooling modules uses water as the cooling medium, and hot water after heat exchange can be used for washing aluminum hydroxide in the aluminum oxide roasting process; the other group uses the evaporation stock solution as a cooling medium, is used for the evaporation process in the alumina roasting process after heat exchange, can fully utilize the heat energy of the fluidized bed cooler in the alumina roasting process, saves energy, reduces production cost and is environment-friendly.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the alumina roasting cooling device of the present invention.
Reference numerals: the device comprises a cyclone cooling system 1, a fluidized bed cooler 2, a feeding device 3, a discharging device 4, a cyclone separator 5, an air pipe 6, an air supplementing system 7, a heat exchanger 8, a blower device 9, a cooling chamber 21, a first cooling module 22, a second cooling module 23, a distribution plate 24, an air inlet chamber 25, an air outlet chamber 26, a feeding pipe 31, a feeding valve 32, a feeding temperature detector 33, a discharging pipe 41, a discharging valve 42, a discharging temperature detector 43, a cyclone cylinder 51, an air outlet 52, a discharging pipe 53, an air supplementing opening 71, a filter 72, a drying fan 73, a blower 91, a pressure regulator 92 and a flow controller 93.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; they may be mechanically or electrically connected, directly or indirectly through intervening media, or may be interconnected within two elements or in an interactive relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the fluidized bed cooler, cooling water and alumina are subjected to indirect heat exchange through the wall of the steel tube, so that the temperature of the alumina is reduced to below 90 ℃. The existing fluidized bed cooler has the defects of overhigh discharging temperature, poor cooling effect and nonuniform discharging particles caused by the back mixing of material particles in the fluidized bed cooler due to low heat exchange load. And the fluidized gas discharged from the fluidized bed cooler is separated by the cyclone separator and then directly discharged into the atmosphere, thus causing the waste of energy.
For solving the problem that the row material high temperature, the cooling effect is poor and the energy is extravagant that current aluminium oxide calcination cooling device exists, the embodiment of the utility model provides an aluminium oxide calcination cooling device for with cyclone cooling system exhaust aluminium oxide secondary cooling, as shown in figure 1, the device includes:
the cyclone cooling system 1 is used for cooling the alumina discharged from the roasting furnace, and can cool the temperature of the alumina to about 250 ℃. The cooled alumina is too hot to be fed directly into the packaging system. Secondary cooling is also required for equipment and personnel safety.
And a fluidized bed cooler 2 for secondarily cooling the alumina cooled in the cyclone cooling system 1. In the fluidized bed cooler 2, cooling medium enters from the water inlet and indirectly exchanges heat with the alumina through the wall of the steel pipe, so that the temperature of the alumina is reduced to be below 90 ℃, and the cooling medium after heat exchange is discharged from the water outlet. The fluidized bed cooler 2 is provided with a first cooling module 22 and a second cooling module 23. The first cooling module 22 and the second cooling module 23 use different cooling media. The first cooling module 22 uses water as a cooling medium, and the hot water after heat exchange can be used for washing aluminum hydroxide in the alumina roasting process. The second cooling module 23 uses the evaporation stock solution as a cooling medium, and is used for an evaporation process in the alumina calcination process after heat exchange. In the mother liquor evaporation process of alumina production, the evaporation stock solution is generally about 85 ℃, and the evaporation steam consumption can be reduced by properly increasing the temperature, thereby saving energy. Through setting up first cooling module 22 and second cooling module 23, can utilize the heat energy in fluidized bed cooler 2 in the aluminium oxide calcination process fully, practiced thrift the energy, reduction in production cost is friendly to the environment.
And a cyclone 5 communicating with an upper portion of the fluidized-bed cooler 2 for purifying the fluidized gas discharged from the fluidized-bed cooler 2. The cyclone 5 includes a cyclone 51, an air outlet 52 and a discharge duct 53. The fluidizing gas in the fluidized bed cooler 2 enters the cyclone 51 at a tangential angle and rotates at a high speed, and under the action of centrifugal force and its gravity, alumina particles in the fluidizing gas rotate downward along the wall of the cyclone and are discharged from a discharge pipe 53 at the bottom of the cyclone 51. The rotating fluidizing gas is subjected to a reaction force of the cyclone wall to the cyclone wall while generating a centrifugal force, and the air purified in the cyclone 51 is pushed to be discharged from the air outlet 52 at the top of the cyclone 51.
And the air supplementing system 7 is connected with an air outlet 52 at the top of the cyclone separator 5 and is used for supplementing lost fluidized air. The air supply system 7 has an air supply port 71, a filter 72, and a drying fan 73. The air supply opening 71 is communicated with the atmosphere, and the atmosphere enters the air supply system 7 through the air supply opening 71. The filter 72 filters and purifies the atmosphere entering the air supply system 7, and then the atmosphere is dried by the drying fan 73 and mixed with the fluidizing gas discharged from the cyclone 5. After the fluidizing gas in the cyclone 5 is mixed with clean air, the lost fluidizing gas is replenished.
And the heat exchanger 8 is connected with the air supply system 7 and is used for cooling the fluidized air discharged by the air supply system 7. The fluidized gas obtains cold wind after the heat exchanger 8 cools off, makes the air temperature who gets into in the fluidized bed lower, and cold wind carries out the heat transfer with the high temperature alumina in the fluidized bed cooling 2 to make the material cooling effect in the fluidized bed better, solved the problem that the material granule backmixing leads to row material granule inhomogeneous in the fluidized bed cooler. The heat exchanger 8 may be any heat exchanger known in the art as long as cooling of the gas can be achieved. Such as one of a plate heat exchanger, a shell and tube heat exchanger, a spiral plate heat exchanger, a positive displacement heat exchanger and a tube and plate heat exchanger.
And a blower 9 communicating with a lower portion of the fluidized bed cooler 2 and delivering the air cooled by the heat exchanger 8 into the fluidized bed cooler 2. Air cooled by the heat exchanger 8 enters the fluidized bed cooler 2 through the air blowing device 9 to be used as fluidizing gas for driving the aluminum oxide to exchange heat with the fluidized bed cooler 2.
In one embodiment, the alumina calcination cooling apparatus further includes a feeding device 3, and the feeding device 3 has a feeding pipe 31, a feeding valve 32, and a feeding temperature detector 33. A feed pipe 31 is connected to the cyclone cooling system 1 and the fluidized bed cooler 2 for feeding the alumina cooled by the cyclone cooling system 1 to the fluidized bed cooler 2. A feed valve 32 is provided in the feed pipe 31 near the mouth of the fluidized bed cooler 2 for controlling the feed rate and amount of alumina. A feed temperature detector 33 is disposed at the mouth of the feed pipe 31 near the fluidized bed cooler 2 for detecting the feed temperature of alumina. By detecting the feeding temperature and controlling the feeding speed and the feeding amount, the aluminum oxide can achieve the best cooling effect.
In one embodiment, the alumina roasting cooling device further comprises a discharging device 4, and the discharging device 4 is provided with a discharging pipe 41, a discharging valve 42 and a discharging temperature detector 43. The tapping pipe 41 is located at the lower end of the fluidized bed cooler 2 and is used for conveying the alumina cooled by the fluidized bed cooler 2. The discharge valve 42 is arranged at the position of the discharge pipe 41 close to the pipe orifice of the fluidized bed cooler 2 and is used for controlling the discharge speed and the discharge amount of the alumina. And the discharge temperature detector 43 is arranged at the position, close to the pipe orifice of the fluidized bed cooler 2, of the discharge pipe 41 and is used for detecting the discharge temperature of the alumina, and discharging the fluidized bed cooler 2 after the discharge temperature of the alumina is lower than 90 ℃.
In one embodiment, the fluidized bed cooler 2 comprises a cooling chamber 21, an air inlet chamber 25 and an air outlet chamber 26. The cooling chamber 21 is located between the air inlet chamber 25 and the air outlet chamber 26, and a first cooling module 22 and a second cooling module 23 are arranged in the cooling chamber. The first cooling module 22 and the second cooling module 23 are composed of heat exchange tubes arranged in a staggered manner up and down. The air intake chamber 25 is located at a lower portion of the fluidized bed cooler 2, and is connected to the blowing device 9 for discharging the cooling air delivered from the blowing device 9 into the inside of the cooling chamber 21. The air outlet chamber 26 is positioned at the upper part of the fluidized bed cooler 2 and is connected with the cyclone separator 5 for discharging the fluidized air generated by the fluidized bed cooler 2 and removing dust in the cyclone separator 5.
In one embodiment, the fluidized bed cooler 2 further comprises a distribution plate 24, and the distribution plate 24 is disposed between the cooling chamber 21 and the wind inlet chamber 25 in a horizontal direction for adjusting a wind direction of the cooling wind entering the inside of the cooling chamber 21. The distribution plate 24 is adjusted according to the feeding amount of the alumina to control the wind direction entering the cooling chamber 21, so that the fluidization is uniform and stable, no dead angle and blow-through phenomenon exist, and the optimal cooling effect is achieved.
In one embodiment, the alumina calcination cooling apparatus further comprises an air duct 6 for conveying air. The air outlet 52 of the cyclone separator 5 is communicated with the air inlet of the air supplement system 7 through an air pipe 6, and the air pipe 6 conveys the fluidized air after dust removal of the cyclone separator 5 to the air supplement system 7 to supplement the lost fluidized air. The air outlet of the air supply system 7 is communicated with the air inlet of the heat exchanger 8 through an air pipe 6, and the air pipe 6 conveys the fluidized air which is supplied and mixed by the air supply system 7 to the heat exchanger 8 for cooling. An air outlet of the heat exchanger 8 is communicated with an air inlet of the air blowing device 9 through an air pipe 6, and the air pipe 6 conveys the fluidized air cooled by the heat exchanger 8 to the air blowing device 9.
In one embodiment, the blower device 9 includes a blower 91, a pressure regulator 92, and a flow controller 93. The blower 91 is used for delivering the cooled fluidizing gas to the air inlet chamber 22. The pressure regulator 92 is used for regulating the pressure difference between the inside and the outside of the fluidized bed cooler 2 and is arranged on the inlet channel of the fluidizing gas of the air inlet chamber 22. The flow controller 93, which is used to control the amount of the fluidizing gas entering the fluidized bed cooler 2, is disposed on the inlet channel of the fluidizing gas of the air inlet chamber 22. The optimum cooling effect can be achieved by controlling the amount of the fluidizing gas entering the fluidized bed cooler 2 by the feeding temperature, feeding speed and feeding amount of the alumina.
The utility model discloses an aluminium oxide calcination cooling device's working method:
alumina cooled by the cyclone cooling system 1 enters the fluidized bed cooler 2 through the feeding pipe 31, the feeding temperature of the alumina is detected by the feeding temperature detector 33, and the feeding amount and the feeding speed are controlled by the feeding valve 32. After entering the fluidized bed cooler 2, the alumina enters the bottom of the cooling chamber 21 by gravity. Meanwhile, the air blowing device 9 conveys the cold air cooled by the heat exchanger 8 to the air inlet chamber 25, the cold air in the air inlet chamber 25 enters the cooling chamber 21 through the distribution plate 24, then is discharged into the cyclone separator 5 from the air outlet chamber 26 for dust removal, enters the air supplementing system 7 through the air pipe 6 for air source supplement after dust removal, the mixed fluidized air enters the heat exchanger 8 for cooling, and the cooled cold air is conveyed to the air inlet chamber 25 through the air blowing device 9 and circulates all around. The fluidizing gas entering the cooling chamber 21 contacts with the alumina to form a fluidized state, and the alumina is cooled in the cooling chamber 21 by indirect heat exchange with a cooling medium through the wall of the steel pipe. The cooling medium is used for other alumina roasting procedures after heat exchange. The cooled alumina is discharged from the discharging device 4, and the discharging temperature detector 43 detects whether the discharging temperature reaches the standard or not.
Based on above-mentioned each embodiment, the utility model discloses aluminium oxide calcination cooling device of embodiment has following advantage: the cooling device has simple structure and good cooling effect, can save energy and is environment-friendly. The utility model provides an aluminium oxide calcination cooling device sets up feeding thermodetector 33 in the mouth of pipe department of inlet pipe 31 near fluidized bed cooler 2, detects the feeding temperature of aluminium oxide. The appropriate feed rate and amount is controlled by feed valve 32 depending on the temperature. The flow controller 93 and the distribution plate 24 are adjusted to control the air quantity and the air direction entering the fluidized bed cooler 2 through the feeding temperature, the feeding speed and the feeding quantity of the alumina, so that the fluidization is uniform and stable, no dead angle and blowing-through phenomenon exist, and the optimal cooling effect is achieved. The cooling device reuses the fluidized gas purified by the cyclone separator 5, and the fluidized gas is cooled by the heat exchanger 8 after the air supply system supplements the air source and then enters the fluidized bed cooler 2 as the fluidized gas, so that the cyclic utilization rate is high, and the cost is low. A first cooling module 22 and a second cooling module 23 are arranged in the fluidized bed cooler 2, two groups of cooling modules adopt different cooling media, the first cooling module 22 uses water as the cooling medium, and hot water after heat exchange can be used for washing aluminum hydroxide in the aluminum oxide roasting process; the second cooling module 23 uses the evaporation stock solution as a cooling medium, is used for the evaporation process in the alumina roasting process after heat exchange, can fully utilize the heat energy of the fluidized bed cooler in the alumina roasting process, saves energy, reduces production cost and is environment-friendly.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An alumina roasting cooling device for secondary cooling of alumina discharged from a cyclone cooling system, comprising:
a fluidized bed cooler (2) connected to the cyclone cooling system (1) and having a first cooling module (22) and a second cooling module (23); the first cooling module (22) and the second cooling module (23) use different cooling media;
a cyclone separator (5) which is communicated with the upper part of the fluidized bed cooler (2) and is used for purifying the fluidized gas discharged from the fluidized bed cooler (2);
the air supplementing system (7) is connected with the top of the cyclone separator (5) and is provided with an air supplementing opening (71); the air supply opening (71) is communicated with the atmosphere;
the heat exchanger (8) is connected with the air supplementing system (7) and is used for cooling the air conveyed by the air supplementing system (7);
and the air blowing device (9) is communicated with the lower part of the fluidized bed cooler (2) and conveys the air cooled by the heat exchanger (8) into the fluidized bed cooler (2).
2. The alumina calcination cooling device of claim 1, wherein the cooling device further comprises:
a feeding device (3) having a feeding pipe (31), a feeding valve (32), and a feeding temperature detector (33); the feeding pipe (31) is connected with the cyclone cooling system (1) and the fluidized bed cooler (2), and a feeding valve (32) and a feeding temperature detector (33) are arranged at the position, close to the pipe orifice of the fluidized bed cooler (2).
3. The alumina calcination cooling device of claim 1, wherein the cooling device further comprises:
the discharging device (4) is provided with a discharging pipe (41), a discharging valve (42) and a discharging temperature detector (43); the discharge pipe (41) is located at the lower end of the fluidized bed cooler (2), and the discharge valve (42) and the discharge temperature detector (43) are arranged at the position, close to the pipe orifice of the fluidized bed cooler (2).
4. The alumina roasting cooling device according to claim 1, wherein the fluidized bed cooler (2) further comprises a cooling chamber (21), an air inlet chamber (25) and an air outlet chamber (26);
the cooling chamber (21) is positioned between the air inlet chamber (25) and the air outlet chamber (26), and the first cooling module (22) and the second cooling module (23) are arranged in the cooling chamber;
the first cooling module (22) and the second cooling module (23) are respectively composed of heat exchange tubes which are staggered up and down;
the air inlet chamber (25) is positioned at the lower part of the fluidized bed cooler (2) and is connected with the air blowing device (9);
the air outlet chamber (26) is positioned at the upper part of the fluidized bed cooler (2) and is connected with the cyclone separator (5).
5. The alumina roasting cooling device according to claim 4, wherein the fluidized bed cooler (2) further comprises a distribution plate (24), and the distribution plate (24) is horizontally arranged between the cooling chamber (21) and the air intake chamber (25).
6. The alumina calcination cooling device according to claim 1, wherein the cooling device further comprises an air duct (6).
7. Alumina roasting cooling apparatus according to claim 1 or 4, characterized in that the air blowing device (9) comprises an air blower (91), a pressure regulator (92) and a flow controller (93);
the air blower (91) is used for conveying cooled fluidized air to the air inlet chamber (25);
the pressure regulator (92) and the flow controller (93) are arranged on a fluidizing gas inlet channel of the air inlet chamber (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964842.2U CN213713998U (en) | 2020-12-12 | 2020-12-12 | Alumina roasting cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964842.2U CN213713998U (en) | 2020-12-12 | 2020-12-12 | Alumina roasting cooling device |
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| CN213713998U true CN213713998U (en) | 2021-07-16 |
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