CN210419769U - High-temperature suspension fluidization rapid calcination system for powder materials - Google Patents
High-temperature suspension fluidization rapid calcination system for powder materials Download PDFInfo
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- CN210419769U CN210419769U CN201920942140.9U CN201920942140U CN210419769U CN 210419769 U CN210419769 U CN 210419769U CN 201920942140 U CN201920942140 U CN 201920942140U CN 210419769 U CN210419769 U CN 210419769U
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Abstract
The utility model relates to a high-temperature suspension fluidization rapid calcination system for powder materials, which comprises a vibration fluidization drying device, a horizontal rolling suspension calcination device, an air blower, a hot air generating device, a gas-solid separation collector, a ceramic membrane dust removal device, a draught fan and a chimney; the utility model overcomes the disadvantage that the powder can not be calcined at high temperature in the traditional magnesite processing technology, realizes the suspension fluidization of the powder material by adopting a horizontal rolling suspension calcining device, and simultaneously dehydrates and dries the magnesite powder and produces steam by utilizing the calcined hot flue gas, so that the heat recovery utilization rate of the system reaches more than 90 percent; the method realizes comprehensive and efficient utilization of energy, and has the advantages of cleanness, environmental protection, safe and stable operation, simple process, strong economy, high product calcination quality, strong controllability of production process and the like.
Description
Technical Field
The utility model relates to a magnesite processing technology field especially relates to a powder material high temperature suspension fluidization fast calcination system.
Background
The magnesite resource reserves in China are rich, and the reserves and the output of Liaoning magnesite ore are at the top of the world at present, so the magnesium material industry becomes the unique dominant resource industry in Liaoning province.
The traditional magnesite processing technology and equipment are not suitable for the requirements of modern development on circular economy and environmental protection, and a diversified and multi-product magnesium oxide production technology for efficiently and comprehensively utilizing magnesite is urgently needed at present. In view of comprehensive utilization of energy, advanced, stable, simple and energy-saving process technology is required for processing magnesite powder so as to produce light-burned active magnesium oxide with high added value and high grade.
According to research, the fine powder of low-grade magnesite after grinding can be produced into light-burned active magnesium oxide products through high-temperature suspension calcination, and the current domestic related technologies comprise ① fixed suspension process, ② fixed fluidization process, ③ fixed scintillation fluidization process and ④ high-temperature vibration fluidization calcination process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a powder material high-temperature suspension fluidization fast calcining system, which overcomes the defect that powder can not be calcined at high temperature in the traditional magnesite processing technology, adopts a horizontal rolling suspension calcining device to realize the suspension fluidization of the powder material, and simultaneously utilizes the calcined hot flue gas to dehydrate and dry the magnesite powder and produce steam, so that the heat recovery utilization rate of the system reaches more than 90 percent; the method realizes comprehensive and efficient utilization of energy, and has the advantages of cleanness, environmental protection, safe and stable operation, simple process, strong economy, high product calcination quality, strong controllability of production process and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-temperature suspension fluidization rapid calcination system for powder materials comprises a vibration fluidization drying device, a horizontal rolling suspension calcination device, an air blower, a hot air generating device, a gas-solid separation collector, a ceramic membrane dust removal device, an induced draft fan and a chimney; the material inlet of the vibration fluidization drying device is connected with a raw material groove of magnesite powder through a pneumatic conveying pipeline, and the dried material outlet of the vibration fluidization drying device is connected with the feed end of the horizontal rolling suspension calcining device through the pneumatic conveying pipeline; the air outlet of the horizontal rolling suspension calcining device is respectively connected with the drying air inlet of the vibrating fluidized drying device and the high-temperature gas inlet of the waste heat boiler through pipelines; a drying air outlet of the vibration fluidization drying device and a low-temperature gas outlet of the waste heat boiler are respectively connected with a flue gas inlet of the ceramic membrane dust removal device through pipelines, and a clean flue gas outlet of the ceramic membrane dust removal device is connected with a chimney through an induced draft fan; the discharge end of the horizontal rolling suspension calcining device is connected with the inlet of the gas-solid separation collector through a pneumatic conveying pipeline, and the outlet of the gas-solid separation collector is connected with the magnesium oxide product tank through a screw conveyor.
The horizontal rolling suspension calcining device comprises a cylinder body, a rotary supporting mechanism, a rotary driving mechanism, a feeding end closed box and a discharging end closed box, wherein the rotary supporting mechanism comprises rolling rings and riding wheels, the rotary driving mechanism comprises a motor, a speed reducer, a gear and a gear ring, the cylinder body is erected on the corresponding riding wheels through at least 2 rolling rings, the gear ring is arranged on the cylinder body, the motor drives the gear to rotate through the speed reducer, and the gear is meshed with the gear ring to drive the cylinder body to rotate around a central axis; the cylinder body is arranged obliquely; the high end of the cylinder body is a feeding end, the feeding end extends into the feeding end closed box, the top of the feeding end closed box is provided with a feeding hole, and one end of the feeding end closed box, which is opposite to the feeding end of the cylinder body, is connected with the hot air settling chamber through a hot air inlet; the lower end of the barrel is a discharge end, the discharge end extends into the discharge end closed box, the top of the discharge end closed box is provided with an air outlet, the bottom of the discharge end closed box is provided with a discharge port, the discharge end closed box opposite to the discharge end of the barrel is provided with a cold air inlet, and the cold air inlet is connected with an air fan through a cold air pipeline; the feed end closed box and the discharge end closed box are hermetically connected with the cylinder; the cylinder body is divided into a flow guide section, a calcining section and a cooling section along the material flowing direction, a plurality of spiral lifting plates are arranged on the inner walls of the cylinder body of the flow guide section, the calcining section and the cooling section close to the calcining section along the circumferential direction and the longitudinal direction, a central cylinder is arranged in the cylinder body of the calcining section, and a plurality of forward spiral spoilers and reverse spiral spoilers are arranged on the outer wall of the central cylinder; the inner wall of the cylinder body is provided with a heat-insulating layer.
The spiral material raising plate is different in setting angle, length, width, rotating radius and screw pitch.
The spiral directions of the forward spiral spoiler and the reverse spiral spoiler are opposite, and the forward spiral spoiler and the reverse spiral spoiler are irregularly arranged on the outer wall of the central cylinder; the setting angle, the length, the width, the rotating radius and the screw pitch of the positive spiral spoiler are different, and the setting angle, the length, the width, the rotating radius and the screw pitch of the reverse spiral spoiler are different.
The spiral lifting plate, the forward spiral spoiler and the reverse spiral spoiler are formed by spirally winding stainless steel metal plate strips.
The inclination of the cylinder body is 1.5-3.5 degrees.
The heat-insulating layer consists of a refractory brick layer, a heat-resistant castable layer and a nano micropore heat-insulating layer which are sequentially arranged from inside to outside.
The hot air generating device is composed of a petroleum coke powder burner, a combustion stabilizing chamber and a hot air settling chamber, the hot air settling chamber is arranged close to the feeding end of the horizontal rolling suspension calcining device, the combustion stabilizing chamber is arranged on the outer side of the hot air settling chamber, the petroleum coke powder burner is arranged at one end of the combustion stabilizing chamber opposite to the hot air settling chamber, and the bottom of the combustion stabilizing chamber is provided with an air inlet which is connected with an air blower through an air inlet pipeline.
The vibration fluidized drying device is a vibration fluidized bed dryer.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the magnesite powder is in the cylinder body, and through the inclined rotary conveying of the cylinder body and the disturbance and beating actions of the spiral material raising plate, the positive spiral spoiler and the negative spiral spoiler, regular and irregular suspension motion is generated at the same time, so that the best effect of calcination is achieved, magnesium oxide is separated out through rapid calcination, and the energy can be saved by about 20 percent compared with the conventional powder calcination process;
2) the process flow is short, the safety is high, the operation is easy, and continuous operation can be realized; the material conveying speed and the temperature of the heat medium can realize stepless regulation and automatic control;
3) the whole calcining process is in a fully closed state, so that the method is more environment-friendly;
4) the output heat medium flue gas is generated by the petroleum coke powder burner, the heat medium flue gas has the advantages of less ash content, high heat value and full combustion without impurities, and the economic cost can be saved by more than 30% compared with the process adopting other fuels for combustion;
5) the utilization rate of the waste heat reaches more than 95 percent, the heat efficiency of the system is high, and the dust content discharged after the residual flue gas with the concentration of less than 5 percent is subjected to ceramic membrane separation and dust removal is 5mg/Nm3Below the national dust emission standard (20 mg/Nm)3)；
6) The heat-insulating layer is arranged in the cylinder and consists of a refractory brick layer, a heat-resistant castable layer and a nano micropore heat-insulating layer, so that energy loss of the system can be reduced to the maximum extent;
7) the vibration fluidized drying device adopts a vibration fluidized bed dryer, which consists of a closed horizontal box body, a fluidization cavity, a vibration distribution plate, a high-temperature air stabilization chamber, an excitation device and a spring support base, adopts a partial vibration participating structure, axially and freely stretches and retracts to solve the problem of high-temperature expansion, and adopts a vibration isolation and sealing device to solve the problem that high temperature, vibration isolation and sealing cannot coexist.
Drawings
Fig. 1 is a schematic structural diagram of a high-temperature suspension fluidization rapid calcination system for powder materials according to the present invention.
FIG. 2 is a schematic structural diagram of the horizontal rolling suspension calcining device of the present invention.
Fig. 3 is a cross-sectional view of the cartridge of the present invention.
In the figure: 1. raw material tank 2, vibration fluidized drying device 3, horizontal rolling suspension calcining device 301, cylinder 302, feed end closed box 303, discharge end closed box 304, rolling ring 305, riding wheel 306, rotary driving mechanism 307, hot air settling chamber 308, spiral lifting plate 309, center cylinder 310, forward spiral spoiler 311, reverse spiral spoiler 4, air blower 5, hot air generating device 6, gas-solid separation collector 7, spiral conveyor 8, magnesium oxide product tank 9, ceramic membrane dust removing device 10, induced draft fan 11 and chimney
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the high-temperature suspension fluidization rapid calcination system for powder materials of the present invention comprises a vibration fluidization drying device 2, a horizontal rolling suspension calcination device 3, an air blower 4, a hot air generating device 5, a gas-solid separation collector 6, a ceramic membrane dust removing device 9, an induced draft fan 10 and a chimney 11; the material inlet of the vibrating fluidized drying device 2 is connected with a raw material tank 1 of magnesite powder through a pneumatic conveying pipeline, and the dried material outlet of the vibrating fluidized drying device 2 is connected with the feed end of the horizontal rolling suspension calcining device 3 through the pneumatic conveying pipeline; the air outlet of the horizontal rolling suspension calcining device 2 is respectively connected with the drying air inlet of the vibrating fluidized drying device 2 and the high-temperature gas inlet of the waste heat boiler through pipelines; a drying air outlet of the vibration fluidization drying device 2 and a low-temperature gas outlet of the waste heat boiler are respectively connected with a flue gas inlet of a ceramic membrane dust removal device 9 through pipelines, and a clean flue gas outlet of the ceramic membrane dust removal device 9 is connected with a chimney 11 through an induced draft fan 10; the discharge end of the horizontal rolling suspension calcining device 3 is connected with the inlet of a gas-solid separation collector 6 through a pneumatic conveying pipeline, and the outlet of the gas-solid separation collector 6 is connected with a magnesium oxide product tank 8 through a screw conveyor 7.
As shown in fig. 2 and 3, the horizontal rolling suspension calcining device 3 comprises a cylinder 301, a rotary supporting mechanism, a rotary driving mechanism 306, a feeding end closed box 302 and a discharging end closed box 303, wherein the rotary supporting mechanism comprises rolling rings 304 and riding wheels 305, the rotary driving mechanism 306 comprises a motor, a speed reducer, a gear and a gear ring, the cylinder 301 is erected on the corresponding riding wheels 305 through at least 2 rolling rings 304, the cylinder 301 is provided with the gear ring, the motor drives the gear to rotate through the speed reducer, and the gear is meshed with the gear ring to drive the cylinder 301 to rotate around a central axis; the cylinder 301 is arranged obliquely; the high end of the cylinder body 301 is a feeding end, the feeding end extends into the feeding end closed box 302, a feeding port is formed in the top of the feeding end closed box 302, and one end, opposite to the feeding end of the cylinder body 301, of the feeding end closed box 302 is connected with a hot air settling chamber 307 through a hot air inlet; the lower end of the barrel 301 is a discharge end, the discharge end extends into the discharge end closed box 303, the top of the discharge end closed box 303 is provided with an air outlet, the bottom of the discharge end closed box 303 is provided with a discharge port, the discharge end closed box 303 opposite to the discharge end of the barrel 301 is provided with a cold air inlet, and the cold air inlet is connected with an air fan through a cold air pipeline; the feeding end closed box 302, the discharging end closed box 303 and the cylinder 301 are hermetically connected; the cylinder 301 is divided into a flow guide section, a calcining section and a cooling section along the material flowing direction, a plurality of spiral lifting plates 308 are arranged on the inner walls of the flow guide section, the calcining section and the cooling section cylinder 301 close to the calcining section along the circumferential direction and the longitudinal direction, a central cylinder 309 is arranged in the cylinder 301 of the calcining section, and a plurality of spiral spoilers 310 and spiral spoilers 311 are arranged on the outer wall of the central cylinder 309; the inner wall of the cylinder 301 is provided with a heat insulation layer.
The spiral material raising plate 308 has different setting angles, lengths, widths, rotation radiuses and pitches (not specifically shown in the figure).
The spiral directions of the forward spiral spoiler 310 and the reverse spiral spoiler 311 are opposite, and the forward spiral spoiler and the reverse spiral spoiler are irregularly arranged on the outer wall of the central cylinder 309; the setting angle, length, width, radius of rotation, and pitch of the forward spiral spoiler 310 are different from each other, and the setting angle, length, width, radius of rotation, and pitch of the reverse spiral spoiler 311 are different from each other (not specifically shown).
The spiral lifting plate 308, the forward spiral spoiler 310 and the reverse spiral spoiler 311 are formed by spirally winding stainless steel metal plate strips.
The inclination of the cylinder 301 is 1.5-3.5 °.
The heat-insulating layer consists of a refractory brick layer, a heat-resistant castable layer and a nano micropore heat-insulating layer which are sequentially arranged from inside to outside.
The hot air generating device 5 is composed of a petroleum coke powder burner, a combustion stabilizing chamber and a hot air settling chamber 307, the hot air settling chamber 307 is arranged close to the feeding end of the horizontal rolling suspension calcining device 3, the combustion stabilizing chamber is arranged on the outer side of the hot air settling chamber 307, the petroleum coke powder burner is arranged at one end of the combustion stabilizing chamber opposite to the hot air settling chamber 307, and the bottom of the combustion stabilizing chamber is provided with an air inlet which is connected with an air blower 4 through an air inlet pipeline.
The vibrating fluidized drying device 2 is a vibrating fluidized bed dryer.
As shown in fig. 1, the process of the high-temperature suspension fluidization rapid calcination system for powder materials of the present invention is as follows:
1) dehydrating and drying magnesite powder by using a vibrating fluidized drying device 2 at the drying temperature of 300-400 ℃, and enabling the dehydrated and dried powder material to enter a horizontal rolling suspension calcining device 3 through a sealed discharge valve with a quantitative feeding function;
2) as shown in fig. 2 and 3, the horizontal rolling suspension calcining device 3 has a cylinder 301 which is obliquely arranged and rotationally rolls along the circumferential direction, the high end of the cylinder 301 is a feeding end, the low end of the cylinder 301 is a discharging end, the cylinder 301 is internally divided into a flow guide section, a calcining section and a cooling section along the material flowing direction, a plurality of spiral material raising plates 308 are arranged on the inner walls of the cylinder 301 of the flow guide section, the calcining section and the cooling section close to the calcining section along the circumferential direction and the longitudinal direction, a central cylinder 309 is arranged in the cylinder 301 of the calcining section, and a plurality of forward spiral spoilers 310 and a plurality of reverse spiral spoilers 311 are arranged on the outer wall of the central; the dehydrated and dried powder material vertically falls at the feed end to form a waterfall material flow, the high-temperature flue gas blown by horizontal pressurization is brought into the cylinder 301, and the powder material is vertically and crossly contacted with hot air, quickly conducts, transfers mass and heat, and is decomposed to generate light active magnesium oxide; the temperature of the high-temperature flue gas is 1000 +/-50 ℃, the magnesite powder is heated in a suspension manner, the heat balance is achieved at 820 +/-20 ℃, and magnesium oxide and carbon dioxide gas are escaped;
3) with the rolling of the cylinder 301, the powder material entering the cylinder 301 is lifted by the spiral lifting plate 308 and flows to the discharge end, and when the powder material passes through the calcining section, irregularly flowing air flow is formed among the spiral lifting plate 308, the forward spiral spoiler 310 and the reverse spiral spoiler 311, so that the powder material is subjected to lifting and disturbing effects, and the powder material is fully calcined in suspension flow; naturally cooling the calcined high-activity magnesium oxide in a cooling section, cooling the magnesium oxide by cold air when discharging from the discharging end of the cylinder 301, cooling the magnesium oxide to 80-100 ℃, collecting the magnesium oxide by a gas-solid separation collector 6, and conveying the magnesium oxide into a magnesium oxide product tank 8 by a screw conveyor 7;
4) the temperature of flue gas carrying 2-5% of dust after calcination is 850 +/-20 ℃, wherein a part of the flue gas is mixed with hot gas at 150-200 ℃ after magnesium oxide is cooled, and the mixture is sent to a vibrating fluidized drying device 2 to participate in the dehydration and drying process of magnesite powder after the temperature is reduced to 350-500 ℃; the other part of the flue gas enters a waste heat boiler to produce industrial steam; the residual flue gas which is less than 5 percent of the undigested system and the flue gas discharged by the vibration fluidization drying device 2 and the waste heat boiler enter a ceramic membrane dust removal device 9 together, and the dust content is separated to be less than 5mg/Nm3And then, the air is guided to a chimney 11 by an induced draft fan 10 to be discharged.
In the high-temperature suspension fluidization rapid calcination system for the powder material, firstly, the vibration fluidization drying device 2 is adopted to dehydrate and dry the magnesite powder, and then the horizontal rolling suspension calcination device 3 is adopted to calcine the dehydrated and dried magnesite powder; in the horizontal rolling suspension calcining device 3, the heat medium airflow breaks through a magnesite powder waterfall flow which is in a free falling body along the horizontal direction, the magnesite powder waterfall flow and the waterfall flow are in cross contact, the heat of the heat medium airflow is quickly transferred to the dispersed falling magnesite powder, after the dispersed falling magnesite powder enters the barrel 301, the magnesite powder moves to the discharge end in a suspension state along with the rotation of the inclined barrel and the lifting action of the spiral lifting plate 308; and the calcining process is finally completed by the stirring and beating actions of the spiral lifting plate 308, the forward spiral spoiler 310 and the reverse spiral spoiler 311 during the calcining stage to generate regular and irregular suspension motion.
The pneumatic conveying of the magnesite powder and the magnesium oxide powder adopts a conveying form of mixing an air suction type and an air compression type. The mixed pneumatic conveying device conveys powder materials in an air suction pipeline and an air compression pipeline of the fan. When the fan works, the materials enter the discharger along the air suction pipeline along with the air flow from the suction nozzle, so that the materials are separated from the air. The air separated from the discharger enters the fan along the air pipe and is discharged from the air compressing pipeline. The material separated from the discharger is discharged by the air seal machine, enters the air compression pipeline, is mixed with air again, and is conveyed to the discharger along the air compression pipeline and is discharged by the air seal machine. The air is purified by the cloth cylinder filter and then discharged into the atmosphere.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A high-temperature suspension fluidization rapid calcination system for powder materials is characterized by comprising a vibration fluidization drying device, a horizontal rolling suspension calcination device, an air blower, a hot air generating device, a gas-solid separation collector, a ceramic membrane dust removal device, an induced draft fan and a chimney; the material inlet of the vibration fluidization drying device is connected with a raw material groove of magnesite powder through a pneumatic conveying pipeline, and the dried material outlet of the vibration fluidization drying device is connected with the feed end of the horizontal rolling suspension calcining device through the pneumatic conveying pipeline; the air outlet of the horizontal rolling suspension calcining device is respectively connected with the drying air inlet of the vibrating fluidized drying device and the high-temperature gas inlet of the waste heat boiler through pipelines; a drying air outlet of the vibration fluidization drying device and a low-temperature gas outlet of the waste heat boiler are respectively connected with a flue gas inlet of the ceramic membrane dust removal device through pipelines, and a clean flue gas outlet of the ceramic membrane dust removal device is connected with a chimney through an induced draft fan; the discharge end of the horizontal rolling suspension calcining device is connected with the inlet of the gas-solid separation collector through a pneumatic conveying pipeline, and the outlet of the gas-solid separation collector is connected with the magnesium oxide product tank through a screw conveyor.
2. The high-temperature suspension fluidization rapid calcination system for the powder materials as claimed in claim 1, wherein the horizontal rolling suspension calcination device comprises a cylinder, a rotation support mechanism, a rotation driving mechanism, a feed end closed box and a discharge end closed box, the rotation support mechanism comprises rolling rings and supporting wheels, the rotation driving mechanism comprises a motor, a speed reducer, a gear and a gear ring, the cylinder is erected on the corresponding supporting wheels through at least 2 rolling rings, the cylinder is provided with the gear ring, the motor drives the gear to rotate through the speed reducer, and the gear is meshed with the gear ring to drive the cylinder to rotate around a central axis; the cylinder body is arranged obliquely; the high end of the cylinder body is a feeding end, the feeding end extends into the feeding end closed box, the top of the feeding end closed box is provided with a feeding hole, and one end of the feeding end closed box, which is opposite to the feeding end of the cylinder body, is connected with the hot air settling chamber through a hot air inlet; the lower end of the barrel is a discharge end, the discharge end extends into the discharge end closed box, the top of the discharge end closed box is provided with an air outlet, the bottom of the discharge end closed box is provided with a discharge port, the discharge end closed box opposite to the discharge end of the barrel is provided with a cold air inlet, and the cold air inlet is connected with an air fan through a cold air pipeline; the feed end closed box and the discharge end closed box are hermetically connected with the cylinder; the cylinder body is divided into a flow guide section, a calcining section and a cooling section along the material flowing direction, a plurality of spiral lifting plates are arranged on the inner walls of the cylinder body of the flow guide section, the calcining section and the cooling section close to the calcining section along the circumferential direction and the longitudinal direction, a central cylinder is arranged in the cylinder body of the calcining section, and a plurality of forward spiral spoilers and reverse spiral spoilers are arranged on the outer wall of the central cylinder; the inner wall of the cylinder body is provided with a heat-insulating layer.
3. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 2, wherein the spiral material raising plate is different in setting angle, length, width, rotation radius and screw pitch.
4. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 2, wherein the spiral directions of the forward spiral spoiler and the reverse spiral spoiler are opposite, and the forward spiral spoiler and the reverse spiral spoiler are irregularly arranged on the outer wall of the central cylinder; the setting angle, the length, the width, the rotating radius and the screw pitch of the positive spiral spoiler are different, and the setting angle, the length, the width, the rotating radius and the screw pitch of the reverse spiral spoiler are different.
5. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 2, wherein the spiral material raising plate, the forward spiral spoiler and the reverse spiral spoiler are formed by spirally winding stainless steel metal plate strips.
6. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 2, wherein the inclination of the cylinder is 1.5 ° to 3.5 °.
7. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 2, wherein the heat insulation layer is composed of a refractory brick layer, a heat-resistant castable layer and a nano-microporous heat insulation layer which are sequentially arranged from inside to outside.
8. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 1, wherein the hot air generation device is composed of a petroleum coke powder burner, a combustion stabilizing chamber and a hot air settling chamber, the hot air settling chamber is arranged close to the feeding end of the horizontal rolling suspension calcination device, the combustion stabilizing chamber is arranged outside the hot air settling chamber, the petroleum coke powder burner is arranged at one end of the combustion stabilizing chamber opposite to the hot air settling chamber, and the bottom of the combustion stabilizing chamber is provided with an air inlet connected with an air blower through an air inlet pipeline.
9. The high-temperature suspension fluidization rapid calcination system for powder materials according to claim 1, wherein the vibrating fluidized drying device is a vibrating fluidized bed dryer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204226A (en) * | 2019-06-21 | 2019-09-06 | 李胜日 | A kind of powder material high temperature suspension fluidization quick calcining process and system |
| CN112050554A (en) * | 2020-08-20 | 2020-12-08 | 莱州市守喜镁业有限公司 | Drying process flow of anhydrous magnesium sulfate |
-
2019
- 2019-06-21 CN CN201920942140.9U patent/CN210419769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204226A (en) * | 2019-06-21 | 2019-09-06 | 李胜日 | A kind of powder material high temperature suspension fluidization quick calcining process and system |
| CN112050554A (en) * | 2020-08-20 | 2020-12-08 | 莱州市守喜镁业有限公司 | Drying process flow of anhydrous magnesium sulfate |
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