CN100351594C - Dynamic calcinator for inorganic material - Google Patents
Dynamic calcinator for inorganic material Download PDFInfo
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- CN100351594C CN100351594C CNB2004100002893A CN200410000289A CN100351594C CN 100351594 C CN100351594 C CN 100351594C CN B2004100002893 A CNB2004100002893 A CN B2004100002893A CN 200410000289 A CN200410000289 A CN 200410000289A CN 100351594 C CN100351594 C CN 100351594C
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- calcinator
- fluidization air
- heater
- gas distribution
- distribution grid
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Abstract
In a dynamic calcinator for inorganic materials, a calcinator body is composed of an outer casing (1), an insulation layer (2) and refractory materials (3). The upper part of one side of the calcinator body is provided with a material feeding opening (4) and an exhaust port (5), and the lower part of the other side of the calcinator body is provided with a material discharging opening (6) and a burner nozzle (7). Both sides of the calcinator body are provided with staircase-shaped gas distributing boards (8), each of the gas distributing boards (8) is provided with a fluidized air distributing chamber (9) and an agitator (10), and a rotary vane feeder (11) is arranged between the gas distributing boards (8). The bottom of the calcinator body is provided with a fluidized air distributing main duct (12), and the fluidized air distributing main duct (12) and the fluidized air distributing chamber (9) are provided with a fluidized air distributing branch ducts (13). The present invention has the advantages that the cost of the present invention is low, the thermal efficiency of the present invention is high, when continuous production is carried out, the time of materials staying in the calcinator is uniform, the temperature is even, and the product quality is stable.
Description
Technical field
The invention belongs to a kind of Inorganic Non-metallic Materials calcining furnace, related in particular to a kind of powder or particulate inorganic nonmetallic materials dynamic calcining stove.
Background technology
Dynamic calcining powder stove is meant by modes such as strength, electric power or mechanical forces and makes powder material be heated the Thermal Equipment of processing under motion state (stir, stirring or suspended state).This is the class Thermal Equipment of generally acknowledged effective processing inorganic powder material already.Be used widely at this kind equipments of industry such as cement, generating, chemical industry, refractory materials at present, typical dynamic calcining equipment comprises that rotary kiln, fluidized calcinator, vertical multi-stage stir calcining furnace etc.Dynamic calcining equipment has solved the inhomogeneity problem of temperature of charge better, also shows the incomparable excellent performance of static calciner simultaneously at aspects such as specific productivity and product qualities.Yet aspect residence time of material homogeneity and operating characteristics, these equipment but can not have both.For example: rotary kiln is a huge Thermal Equipment that tilts to place and rotate.It has superior performance aspect the residence time of material homogeneity, still, must guarantee that the kiln body is in the rotation status that does not stop, otherwise the kiln body will bend final destruction under hot state.Same because the rotation of rotary kiln makes in the hot procedure hope of regulating atmosphere (replenishing desired gas) and additional material (as additive) at different calcination stages be not easy realization.Rotary kiln also proposes relatively harsher requirement to the mechanical strength and the heat endurance of refractory material.Fluidized calcinator shows than higher specific productivity and reasonable temperature homogeneity, but itself belongs to all mixed-type reactor fluidization process, the time of staying of the material non-constant width that distributes, be difficult to guarantee that product has the identical time of staying, for this reason, have to adopt the mode of Batch Process to satisfy requirement to the residence time of material homogeneous.Some had once developed level or vertical multi-stage fluidized calcinator, overcome the inhomogenous shortcoming of residence time of material with this, yet because inter-stage material problem of transmission and large-scale fluidized bed fluidization air distribution grid technical problem, level or vertical multi-stage fluidized calcinator are not used widely.Vertical multi-stage stir calcining furnace refractory material light-burned or kaolin calcined in once be applied, but the shared same shaft of the calcining compartments at different levels of this calcining furnace, Flow of Goods and Materials also only depends on drop between each chamber, there are not other control measure, thereby can not satisfy some calcine technology (as Coaseries kaolin calcined) dynamic calcinings at different levels chamber is required to have the requirement that difference is stirred intensity, and, can not satisfy the requirement that long residence time high strength is stirred because Flow of Goods and Materials speed is associated with the size of agitation speed.When material being carried out serialization production, often owing to the time of staying heterogeneity of material in calcining furnace, non-uniform temperature, and make product quality be difficult to guarantee, simultaneously because material and calcining furnace are indirect, the thermal efficiency is low.
Summary of the invention
Goal of the invention of the present invention is that time of staying homogeneous, the temperature of a kind of material of design in calcining furnace is even, the inorganic material dynamic calcining stove that can be continuously produced that the thermal efficiency is high.
The object of the present invention is achieved like this, it is by shell, insulating, refractory lining, charge door, discharging opening, the smoke evacuation exhaust outlet is formed, it is characterized in that shell, insulating and refractory lining constitute body of heater, have charge door and smoke evacuation exhaust outlet in upper of furnace body and body of heater one side, opposite side in the body of heater bottom has discharging opening, the top of discharging opening has burner nozzle, between one side of body of heater below the charge door and body of heater opposite side discharging opening and burner nozzle, be fixed with the stairstepping gas distribution grid, the below of gas distribution grid is fixed with fluidization air distributing chamber, agitator is housed on the gas distribution grid, the impeller blanking device is housed between the stairstepping gas distribution grid, at bottom of furnace body fluidization air is housed and distributes trunk line, be fixed with fluidization air dispensing branch road between fluidization air distribution trunk line and the fluidization air distributing chamber.
Aforesaid stairstepping gas distribution grid can be the 3-50 level.
Aforesaidly be fixed with 1-5 fluidization air dispensing branch road in fluidization air distributing chamber.
Aforesaid impeller blanking device is a rigidity.
When using, to the body of heater heating, distribute trunk line and branch pipe(tube) to send into fluidization air distributing chamber with air blast from fluidization air fluidization air simultaneously, start agitator and impeller blanking device.Add material from charge door, fluidization air makes material be in fluidized state from fluidization air distributing chamber by gas distribution grid.The direct heating and calcining of material quilt under the effect of fluidized state and agitator, material transmits to next stage from the highest level of stairstepping gas distribution grid under the effect of impeller blanking device, enter discharging opening by last one-level at last and discharge, finish calcination process, smoke waste gas is discharged from the smoke evacuation exhaust outlet.According to the requirement of material calcining, material is regulated by the rotating speed of regulating charging rate and impeller blanking device.
The present invention compared with prior art has following advantage:
1, make simply, easy to use, cost is low, thermal efficiency height.
2, calcining furnace reliability when operation improves.
3, when serialization is produced, the time of staying homogeneous of material in calcining furnace, temperature is even.
4, according to the requirement of material calcining, material is regulated by the rotating speed of regulating charging rate and impeller blanking device.
5, the constant product quality of Sheng Chaning.
6, do not resemble rotary kiln simplified huge high temperature rotating machinery, do not need to consider to have a power failure or drive apparatus fault and problem such as the cylindrical shell high temperature deformation that may cause, damage;
7, can need the local arbitrarily hole-opening of hole-opening at body of heater, be used to regulate calcination atmosphere, postreaction material or carry out thermal measurement;
8, adopt stirring and fluidization complex technique, solved the fluidization quality problem preferably, be specially adapted to make the subparticle of difficult fluidisation under the normal condition to realize fluidization;
9, owing to adopt independently stirring system, each level can freely be stirred, satisfied different material in the needed flow regime of different calcination stages.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the enlarged drawing of A among Fig. 1.
The specific embodiment
The present invention is as follows by the embodiment accompanying drawings:
As shown in the figure, shell 1, insulating 2 and refractory lining 3 constitute body of heater, have charge door 4 and smoke evacuation exhaust outlet 5 in upper of furnace body and body of heater one side, opposite side in the body of heater bottom has discharging opening 6, the top of discharging opening 6 has burner nozzle 7, between body of heater one side below the charge door 4 and body of heater opposite side discharging opening 6 and burner nozzle 7, be fixed with stairstepping gas distribution grid 8, the below of gas distribution grid 8 is fixed with fluidization air distributing chamber 9, agitator 10 is housed on the gas distribution grid 8, impeller blanking device 11 is housed between stairstepping gas distribution grid 8, at bottom of furnace body fluidization air is housed and distributes trunk line 12, be fixed with fluidization air dispensing branch road 13 between fluidization air distribution trunk line 12 and the fluidization air distributing chamber 9.
When using, to the body of heater heating, distribute trunk line 12 to send into fluidization air distributing chamber 9 with air blast from fluidization air fluidization air simultaneously by fluidization air dispensing branch road 13, start agitator 10 and impeller blanking device 11.Add material from charge door 4, fluidization air makes material be in fluidized state from fluidization air distributing chamber 9 by gas distribution grid 8.By direct heating and calcining, material transmits to next stage from the highest level of stairstepping gas distribution grid 8 material under the effect of impeller blanking device 11 under the effect of fluidized state and agitator 10, enters discharging opening 6 by last one-level at last and discharges, and finishes calcination process.Smoke waste gas is discharged from smoke evacuation exhaust 5.According to the requirement of material calcining, material is regulated by the rotating speed of regulating charging rate and impeller blanking device 11.
Claims (4)
1, a kind of inorganic material dynamic calcining stove, it comprises shell (1), insulating (2), refractory material (3), charge door (4), discharging opening (6), smoke evacuation exhaust outlet (5), it is characterized in that shell (1), insulating (2) and refractory material (3) constitute body of heater, have charge door (4) and smoke evacuation exhaust outlet (5) in upper of furnace body and body of heater one side, opposite side in the body of heater bottom has discharging opening (6), the top of discharging opening (6) has burner nozzle (7), be positioned between charge door (4) below body of heater one side and body of heater opposite side discharging opening (6) and the burner nozzle (7) and be fixed with stairstepping gas distribution grid (8), the below of gas distribution grid (8) is fixed with fluidization air distributing chamber (9), agitator (10) is housed on the gas distribution grid (8), impeller blanking device (11) is housed between stairstepping gas distribution grid (8), at bottom of furnace body fluidization air is housed and distributes trunk line (12), be fixed with fluidization air between fluidization air distribution trunk line (12) and the fluidization air distributing chamber (9) and distribute subtube (13).
2, a kind of inorganic material dynamic calcining stove as claimed in claim 1 is characterized in that described stairstepping gas distribution grid (8) is the 5-50 level.
3, a kind of inorganic material dynamic calcining stove as claimed in claim 1 is characterized in that described fluidization air distributing chamber (9) is fixed with 1-5 fluidization air and distributes subtube (13).
4, a kind of inorganic material dynamic calcining stove as claimed in claim 1 is characterized in that described impeller blanking device (11) is a rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100002893A CN100351594C (en) | 2004-01-15 | 2004-01-15 | Dynamic calcinator for inorganic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100002893A CN100351594C (en) | 2004-01-15 | 2004-01-15 | Dynamic calcinator for inorganic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558172A CN1558172A (en) | 2004-12-29 |
| CN100351594C true CN100351594C (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100002893A Expired - Fee Related CN100351594C (en) | 2004-01-15 | 2004-01-15 | Dynamic calcinator for inorganic material |
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| Country | Link |
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| CN (1) | CN100351594C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102031063B (en) * | 2009-09-27 | 2014-02-19 | 内蒙古威能金属化工有限公司 | Rare earth polishing powder and production method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4134480A1 (en) * | 1991-10-18 | 1993-04-22 | Procter & Gamble Gmbh | Decontamination of fly ash and filter dust from combustion plant - involves heating to high temp. with air in rotary calciner and recycling flue gas to combustion, useful for removal of dioxin(s) and furan(s) and prevents environmental pollution |
| US5286472A (en) * | 1989-11-27 | 1994-02-15 | Alcan International Limited | High efficiency process for producing high purity alumina |
| CN2268237Y (en) * | 1995-11-29 | 1997-11-19 | 化学工业部化工机械研究院 | Stepped fluidized-bed dryer |
| CN2420499Y (en) * | 2000-04-20 | 2001-02-21 | 高峰 | Fluidized forge furnace |
| CN1087969C (en) * | 1995-08-24 | 2002-07-24 | 弗·尔·斯米德恩公司 | Method and apparatus for treating a bed of particulate material |
| CN2529869Y (en) * | 2002-01-24 | 2003-01-08 | 黄齐文 | Superfined powder-kaoline calcinator |
| CN2697553Y (en) * | 2004-01-15 | 2005-05-04 | 太原理工大学 | Dynamic calciner for inorganic nonmetal material |
-
2004
- 2004-01-15 CN CNB2004100002893A patent/CN100351594C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286472A (en) * | 1989-11-27 | 1994-02-15 | Alcan International Limited | High efficiency process for producing high purity alumina |
| DE4134480A1 (en) * | 1991-10-18 | 1993-04-22 | Procter & Gamble Gmbh | Decontamination of fly ash and filter dust from combustion plant - involves heating to high temp. with air in rotary calciner and recycling flue gas to combustion, useful for removal of dioxin(s) and furan(s) and prevents environmental pollution |
| CN1087969C (en) * | 1995-08-24 | 2002-07-24 | 弗·尔·斯米德恩公司 | Method and apparatus for treating a bed of particulate material |
| CN2268237Y (en) * | 1995-11-29 | 1997-11-19 | 化学工业部化工机械研究院 | Stepped fluidized-bed dryer |
| CN2420499Y (en) * | 2000-04-20 | 2001-02-21 | 高峰 | Fluidized forge furnace |
| CN2529869Y (en) * | 2002-01-24 | 2003-01-08 | 黄齐文 | Superfined powder-kaoline calcinator |
| CN2697553Y (en) * | 2004-01-15 | 2005-05-04 | 太原理工大学 | Dynamic calciner for inorganic nonmetal material |
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| Publication number | Publication date |
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| CN1558172A (en) | 2004-12-29 |
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Granted publication date: 20071128 Termination date: 20110115 |