CN103193400A - Temperature-controlled suspension roaster - Google Patents
Temperature-controlled suspension roaster Download PDFInfo
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- CN103193400A CN103193400A CN2013101313795A CN201310131379A CN103193400A CN 103193400 A CN103193400 A CN 103193400A CN 2013101313795 A CN2013101313795 A CN 2013101313795A CN 201310131379 A CN201310131379 A CN 201310131379A CN 103193400 A CN103193400 A CN 103193400A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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Abstract
The invention relates to a temperature-controlled suspension roaster. The temperature-controlled suspension roaster comprises a cyclone separator, a preheating cyclone drum, a temperature-controlled roaster, a drier and a multistage cyclone cooler, wherein the cyclone separator is a two-stage cyclone separator which comprises a first-stage cyclone separator and a secondary cyclone separator, and the multistage cyclone cooler sequentially comprises a first-stage cooler, a middle-stage cooler and a final-stage cooler from the upstream to the upstream of the running path of material. The temperature-controlled suspension roaster has the advantages that the process arrangement is simple, the occupied land is small, and the operation and maintenance expenses are low; the roasting effect is good, the decomposition efficiency of magnesium carbonate is high, and magnesium oxide products with different purities can be obtained by changing calcination temperature; magnesite powder is dried and preheated by using discharged waste gas, the heat of high-temperature waste flue gas is fully recycled, and the heat efficiency of the roaster is improved; and the four-stage cyclone cooler has a good cooling effect and can be used for cooling a finished product magnesium oxide to be below 100 DEG C so that caloric content of magnesium oxide can be fully recovered for disintegrating magnesite and the energy consumption of the roaster can be reduced.
Description
Technical field
This patent belongs to ceramic manufacturing technology field, particularly relates to a kind of temperature controllable magnesium hydroxide suspension stoving oven.
Background technology
China is one of the abundantest country of magnesite resource in the world, and explored magnesite reserves reach 35.64 hundred million tons, account for 28.7% of world's total reserves, occupy first place in the world.Therefore, China's magnesium oxide production is based on calcined magnesite, and light calcined magnesia mainly adopts reflecting kiln, rotary kiln or fluidizing furnace calcining to form, and heavy burned magnesium oxide adopts the shaft furnace calcining to form.
Producing in the magnesian technology at traditional calcined magnesite, no matter be reflecting kiln, rotary kiln, or all there is the energy consumption height in shaft furnace, and product purity is low, and serious environment pollution, low grade ore can not get the effectively problem of utilization.The calcining of magnesite is the core link that magnesium oxide is produced, and therefore, the magnesian hear rate of burning till directly influences production cost of products.Adopt traditional kiln type calcined magnesite, the waste gas of discharge is taken away a large amount of heats, causes magnesian production hear rate too high, increases product cost.
Summary of the invention
This patent provides a kind of temperature controllable suspension roaster for solving the technical problem that exists in the known technology, the thermo-efficiency height of this suspension roaster, and hear rate is few, can also be by changing the magnesium oxide product that calcining temperature obtains different purity.
A kind of temperature controllable suspension roaster, it is characterized in that: formed by cyclonic separator, preheating whirlwind tube, temperature controllable stoving oven, moisture eliminator, multistage cyclone water cooler, wherein cyclonic separator comprises the two stage cyclone separator, be primary cyclone and secondary cyclone, multistage water cooler comprises one-level water cooler, intermediate stage water cooler and aftercooler successively from upstream to the downstream of material operation
The outlet of moisture eliminator links to each other with the entrance of primary cyclone, and the gas inlet of moisture eliminator links to each other with the pneumatic outlet of preheating whirlwind tube,
Primary cyclone also is linked with the high-temperature blower for combustion gas, and the material outlet of primary cyclone links to each other with the material inlet of preheating whirlwind tube,
The gas inlet of preheating whirlwind tube also links to each other with the pneumatic outlet of secondary cyclone, and the material outlet of preheating whirlwind tube also links to each other with the material inlet of stoving oven;
The gas entry of stoving oven is connected with gaspipe line, and the burner noz(zle) for gas-fired is housed on the stoving oven, and the outlet of stoving oven links to each other with the entrance of secondary cyclone;
The material outlet of secondary cyclone also links to each other with the material inlet of one-level water cooler,
The material outlet of one-level water cooler links to each other with the material inlet of intermediate stage water cooler, the pneumatic outlet of one-level water cooler links to each other with the gas inlet of stoving oven, in the gas inlet of one-level water cooler and the intermediate stage water cooler the pneumatic outlet of the water cooler of close upstream link to each other
The gas inlet of intermediate stage water cooler links to each other with the pneumatic outlet of the water cooler of next stage more, and the material outlet of intermediate stage water cooler links to each other with the material inlet of the water cooler of next stage more,
The gas inlet of aftercooler links to each other with air, and the material outlet of aftercooler is the finished product materials outlet of temperature controllable suspension roaster.
This patent can also be by the following technical solutions:
The quantity of described intermediate stage water cooler is 2 grades.
Advantage and positively effect that this patent has are:
Because this patent adopts technique scheme, processing set-up is simple, and floor space is little, and the Operation and Maintenance expense is low; Calcine effective, magnesiumcarbonate decomposition efficiency height, and can be by changing the magnesium oxide product that calcining temperature obtain different purity; Utilize the waste gas drying and forewarm magnesite breeze of discharging, fully reclaim the heat content in the high-temperature waste flue gas, improve system thermal efficiency; The Category Four cyclone cooling effect of cooler is good, the magnesian temperature of finished product can be cooled to below 100 ℃, and the heat content that fully reclaims wherein decomposes usefulness for magnesite, reduces the firing system energy consumption.
Description of drawings
Fig. 1 is the structural representation of this patent;
Among the figure: 1, moisture eliminator; 2, primary cyclone; 3, secondary cyclone; 4, preheating whirlwind tube; 5, stoving oven; 6, one-level water cooler; 7, secondary coolers; 8, three grades of water coolers; 9, level Four water cooler; 10, high-temperature blower.
Embodiment
For further understanding utility model content, characteristics and the effect of this patent, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, among the figure, solid line adds the flow direction that arrow is represented solid materials, and two dot chain line adds the flow direction that arrow is represented dusty gas, and dotted line is represented the flow direction of waste gas.
A kind of temperature controllable suspension roaster, formed by cyclonic separator, preheating whirlwind tube 4, temperature controllable stoving oven 5, moisture eliminator 1, multistage cyclone water cooler, wherein cyclonic separator comprises the two stage cyclone separator, be primary cyclone 2 and secondary cyclone 3, multistage water cooler comprises one-level water cooler, intermediate stage water cooler and aftercooler successively from upstream to the downstream of material operation
The outlet of moisture eliminator links to each other with the entrance of primary cyclone, and the gas inlet of moisture eliminator links to each other with the pneumatic outlet of preheating whirlwind tube,
Primary cyclone also is linked with the high-temperature blower 10 for combustion gas, and the material outlet of primary cyclone links to each other with the material inlet of preheating whirlwind tube,
The gas inlet of preheating whirlwind tube also links to each other with the pneumatic outlet of secondary cyclone, and the material outlet of preheating whirlwind tube also links to each other with the material inlet of stoving oven;
The gas entry of stoving oven is connected with gaspipe line, and the burner noz(zle) for gas-fired is housed on the stoving oven, and the outlet of stoving oven links to each other with the entrance of secondary cyclone;
The material outlet of secondary cyclone also links to each other with the material inlet of one-level water cooler,
The material outlet of one-level water cooler links to each other with the material inlet of intermediate stage water cooler, the pneumatic outlet of one-level water cooler links to each other with the gas inlet of stoving oven, in the gas inlet of one-level water cooler and the intermediate stage water cooler the pneumatic outlet of the water cooler of close upstream link to each other
The gas inlet of intermediate stage water cooler links to each other with the pneumatic outlet of the water cooler of next stage more, and the material outlet of intermediate stage water cooler links to each other with the material inlet of the water cooler of next stage more,
The gas inlet of aftercooler links to each other with air, and the material outlet of aftercooler is the finished product materials outlet of temperature controllable suspension roaster.
The quantity of described intermediate stage water cooler is 2 grades.
Cited one has 4 grades water cooler in the present embodiment---one-level water cooler 6, secondary coolers 7, three grades of water coolers 8, level Four water cooler 9, and wherein secondary, three grades of water coolers constitute the intermediate stage water coolers, and the level Four water cooler is aftercooler.
Primary cyclone, preheating whirlwind tube, secondary cyclone, level Four water cooler are the whirlwind barrel structure, and body skin is that steel plate is made, and inside is built refractory brick or refractory castable by laying bricks or stones, reduces surface radiating.The inner core that the Heat resisting cast steel lacing film is formed is equipped with in whirlwind tube inside, improves the gas solid separation efficient of whirlwind tube.The whirlwind tube has characteristics such as reasonable in design, that systemic resistance is little, structure formation is simple, operation and maintenance cost is low.The temperature controllable stoving oven revolves the combined type suspension roaster for spray, and resistance is little, and the spray swirl effect is good, can guarantee that the rate of decomposition of magnesiumcarbonate is more than 99%.Gas burner is housed on the stoving oven, can regulates calcining temperature in the stove by the consumption that changes coal gas, with this magnesium oxide product that obtains different purity, satisfy user's different demands.
The operating principle of this patent is:
A, material and enter moisture eliminator together from the dusty gas that preheating whirlwind tube comes out and finish the drying and dehydrating process;
B, dried dusty gas and material enter primary cyclone together and carry out gas solid separation, flue gas is separated, and discharged by high-temperature blower;
C, the material that comes out from primary cyclone enter the connection airduct of preheating whirlwind tube and secondary cyclone, and finish the gas-solid heat exchange therein, enter preheating whirlwind tube afterwards and carry out gas solid separation; Preheating whirlwind tube is because the negative pressure that high-temperature blower causes causes dusty gas to enter into moisture eliminator by preheating whirlwind tube; Solid materials after the separation enters stoving oven, and waste gas is discharged in the moisture eliminator by preheating whirlwind tube exhaust outlet;
D, the isolated solid materials of preheating whirlwind tube are sent into stoving oven, and burner combustion coal gas is calcined for material, finishes roasting process;
E, the dusty gas of discharging from stoving oven enter secondary cyclone, and through the secondary cyclone separation, the isolated dusty gas of secondary cyclone enters preheating whirlwind tube, solid enters into the connecting tube of secondary coolers and one-level water cooler, the freezing air of discharging with secondary coolers carries out the gas-solid heat exchange, enters afterwards and carries out gas solid separation in the one-level water cooler.
F, solid materials cool off and gas solid separation after entering the one-level water cooler, the gas source that is used for cooling off to the one-level water cooler is in secondary coolers, the one-level water cooler is given secondary coolers with 1 grade of cooled material, the exhaust outlet of one-level water cooler directly connects the TD stoving oven, and hot gas enters and participates in calcining in the stove.
G, secondary coolers use three grades of water cooler expellant gas that the material of one-level water cooler output is cooled off and gas solid separation, the principle of three grades of water coolers is the same with secondary coolers, all is that cooler a little the gas that utilizes that the back one-level discharges cools off for hotter material;
The material that H, level Four water cooler utilize air to discharge for three grades of water coolers cools off and gas solid separation, discharges finished product materials, and gives three grades of water coolers with gas.
Although by reference to the accompanying drawings the preferred embodiment of this patent is described above; but this patent is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of this patent; do not breaking away under the scope situation that this patent aim and claim protect; can also make a lot of forms; for example adopt more or less intermediate stage water cooler, these all belong within the protection domain of this patent.
Claims (2)
1. temperature controllable suspension roaster, it is characterized in that: formed by cyclonic separator, preheating whirlwind tube, temperature controllable stoving oven, moisture eliminator, multistage cyclone water cooler, wherein cyclonic separator comprises the two stage cyclone separator, be primary cyclone and secondary cyclone, multistage water cooler from the upstream of material operation to the downstream, comprise one-level water cooler, intermediate stage water cooler and aftercooler successively
The outlet of moisture eliminator links to each other with the entrance of primary cyclone, and the gas inlet of moisture eliminator links to each other with the pneumatic outlet of preheating whirlwind tube,
Primary cyclone also is linked with the high-temperature blower for combustion gas, and the material outlet of primary cyclone links to each other with the material inlet of preheating whirlwind tube,
The gas inlet of preheating whirlwind tube also links to each other with the pneumatic outlet of secondary cyclone, and the material outlet of preheating whirlwind tube also links to each other with the material inlet of stoving oven;
The gas entry of stoving oven is connected with gaspipe line, and the burner noz(zle) for gas-fired is housed on the stoving oven, and the outlet of stoving oven links to each other with the entrance of secondary cyclone;
The material outlet of secondary cyclone also links to each other with the material inlet of one-level water cooler,
The material outlet of one-level water cooler links to each other with the material inlet of intermediate stage water cooler, the pneumatic outlet of one-level water cooler links to each other with the gas inlet of stoving oven, in the gas inlet of one-level water cooler and the intermediate stage water cooler the pneumatic outlet of the water cooler of close upstream link to each other
The gas inlet of intermediate stage water cooler links to each other with the pneumatic outlet of the water cooler of next stage more, and the material outlet of intermediate stage water cooler links to each other with the material inlet of the water cooler of next stage more,
The gas inlet of aftercooler links to each other with air, and the material outlet of aftercooler is the finished product materials outlet of temperature controllable suspension roaster.
2. temperature controllable suspension roaster as claimed in claim 1, it is characterized in that: the quantity of described intermediate stage water cooler is 2 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131379.5A CN103193400B (en) | 2013-04-16 | 2013-04-16 | Temperature-controllsuspension suspension roaster |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310131379.5A CN103193400B (en) | 2013-04-16 | 2013-04-16 | Temperature-controllsuspension suspension roaster |
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| CN103193400A true CN103193400A (en) | 2013-07-10 |
| CN103193400B CN103193400B (en) | 2016-08-31 |
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| CN201310131379.5A Active CN103193400B (en) | 2013-04-16 | 2013-04-16 | Temperature-controllsuspension suspension roaster |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524057A (en) * | 2013-10-22 | 2014-01-22 | 瓮福（集团）有限责任公司 | Method for preparing lime by using byproduct calcium carbonate obtained from preparation of ammonium sulfate by phosphogypsum as raw material |
| CN106524730A (en) * | 2016-12-13 | 2017-03-22 | 中铝集团山西交口兴华科技股份有限公司 | Aluminium hydroxide drying system and drying method thereof |
| CN107739847A (en) * | 2017-10-16 | 2018-02-27 | 福州大学 | A kind of crystal formation conversion method of natural spodumene suspension roasting |
| CN108398018A (en) * | 2018-03-09 | 2018-08-14 | 湖南科技大学 | A kind of fine powder suspension calciner and its method of roasting |
| CN108585556A (en) * | 2018-07-24 | 2018-09-28 | 沈阳鑫博工业技术股份有限公司 | A kind of system and device and method preparing more specification light calcined magnesias |
| CN109467323A (en) * | 2019-01-15 | 2019-03-15 | 王誓学 | Lime suspension calcining process equipment |
| CN109776002A (en) * | 2019-03-06 | 2019-05-21 | 中国中材国际工程股份有限公司 | A kind of the suspension calcining activation system and method for Suitable clays mine tailing |
| CN111825351A (en) * | 2020-08-20 | 2020-10-27 | 辽宁圣世资源环境科技有限公司 | Device and process for preparing calcined magnesium oxide for magnesium phosphate cement |
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| CN1815161A (en) * | 2006-01-11 | 2006-08-09 | 贵阳铝镁设计研究院 | Blanking-tube sampling device for aluminium oxide gas suspension baking furnace |
| CN101324408A (en) * | 2008-08-04 | 2008-12-17 | 中国铝业股份有限公司 | Flue gas waste heat recovery method of aluminum oxide gaseous state suspending calcining furnace |
| CN101618887A (en) * | 2009-07-31 | 2010-01-06 | 刘鹤群 | Aluminium hydroxide suspension roasting furnace and layout in production plant |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1815161A (en) * | 2006-01-11 | 2006-08-09 | 贵阳铝镁设计研究院 | Blanking-tube sampling device for aluminium oxide gas suspension baking furnace |
| CN101324408A (en) * | 2008-08-04 | 2008-12-17 | 中国铝业股份有限公司 | Flue gas waste heat recovery method of aluminum oxide gaseous state suspending calcining furnace |
| CN101618887A (en) * | 2009-07-31 | 2010-01-06 | 刘鹤群 | Aluminium hydroxide suspension roasting furnace and layout in production plant |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524057A (en) * | 2013-10-22 | 2014-01-22 | 瓮福（集团）有限责任公司 | Method for preparing lime by using byproduct calcium carbonate obtained from preparation of ammonium sulfate by phosphogypsum as raw material |
| CN106524730A (en) * | 2016-12-13 | 2017-03-22 | 中铝集团山西交口兴华科技股份有限公司 | Aluminium hydroxide drying system and drying method thereof |
| CN107739847A (en) * | 2017-10-16 | 2018-02-27 | 福州大学 | A kind of crystal formation conversion method of natural spodumene suspension roasting |
| CN108398018A (en) * | 2018-03-09 | 2018-08-14 | 湖南科技大学 | A kind of fine powder suspension calciner and its method of roasting |
| CN108398018B (en) * | 2018-03-09 | 2019-08-30 | 湖南科技大学 | A kind of fine powder suspension calciner and its method of roasting |
| CN108585556A (en) * | 2018-07-24 | 2018-09-28 | 沈阳鑫博工业技术股份有限公司 | A kind of system and device and method preparing more specification light calcined magnesias |
| CN109467323A (en) * | 2019-01-15 | 2019-03-15 | 王誓学 | Lime suspension calcining process equipment |
| CN109467323B (en) * | 2019-01-15 | 2023-11-21 | 王誓学 | Lime suspension calcination process equipment |
| CN109776002A (en) * | 2019-03-06 | 2019-05-21 | 中国中材国际工程股份有限公司 | A kind of the suspension calcining activation system and method for Suitable clays mine tailing |
| CN109776002B (en) * | 2019-03-06 | 2024-01-19 | 中国中材国际工程股份有限公司 | Suspension calcination activation system and method suitable for clay mine tailings |
| CN111825351A (en) * | 2020-08-20 | 2020-10-27 | 辽宁圣世资源环境科技有限公司 | Device and process for preparing calcined magnesium oxide for magnesium phosphate cement |
| CN111825351B (en) * | 2020-08-20 | 2023-10-27 | 辽宁东大粉体工程技术有限公司 | Device and process for preparing middle-burned magnesia for magnesium phosphate cement |
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| CN103193400B (en) | 2016-08-31 |
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Effective date of registration: 20190402 Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1 Patentee after: Tianjin Cement Industry Design & Research Institute Co., Ltd. Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1 Patentee before: Sinoma Technology & Equipment Group Co., Ltd. |
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