CN101659522B - Calcined dolomite production machine - Google Patents
Calcined dolomite production machine Download PDFInfo
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- CN101659522B CN101659522B CN2009100751033A CN200910075103A CN101659522B CN 101659522 B CN101659522 B CN 101659522B CN 2009100751033 A CN2009100751033 A CN 2009100751033A CN 200910075103 A CN200910075103 A CN 200910075103A CN 101659522 B CN101659522 B CN 101659522B
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- discharge port
- rotary kiln
- feeder
- preheater
- preheating
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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
Abstract
The invention relates to a calcined dolomite production machine which belongs to the field of metal magnesium. The calcined dolomite production machine comprises a vibrating screening machine, a loading machine, a preheater, a rotary kiln, a cooler, a conveyor and a finished product transfer station, wherein the vibrating screening machine comprises an underground receiving hopper, a vibrating screen is arranged below a discharge port of the underground receiving hopper, a loading inlet of the loading machine is arranged at the discharge port of the vibrating screen, a top feed bin of the preheater is arranged at a loading outlet of the loading machine, the top feed bin is communicated with a preheating chamber below the top feed bin through a blanking pipe, a push rod feeder is arranged at the discharge port of the preheating chamber, the discharge port of the push rod feeder is communicated with a feed port of the rotary kiln through a chute, a preheating zone, a calcining zone and a cooling zone are sequentially arranged in the rotary kiln, the cooler is arranged below the discharge port of the rotary kiln, the conveyor is arranged at the discharge port of the cooler, and the finished product transfer station is arranged at a throwing port of the conveyor. The calcined dolomite production machine has the advantages of high utilization rate of residual heat of flue gas and finished products, energy conservation and consumption reduction.
Description
Technical field
The present invention relates to a kind of calcined dolomite production machine in MAGNESIUM METAL field.
Background technology
What white employing was forged in existing MAGNESIUM METAL industry roasting is rotary kiln and single cylinder cooling machine, shortcomings such as it exists, and waste heat can not make full use of, single cylinder cooling machine cooling performance difference, and energy consumption height, cost height, pollute big, environment protecting is poor.Material directly enters rotary kiln baking, does not have primary heater unit and equipment, and rotary kiln is very long, and length-to-diameter ratio is more than 20, easily burning or ring formation.Kiln tail high-temperature flue gas adopts interchanger or waste heat boiler, and heat utilization ratio is very low, and soot emissions are difficult to up to standard.Cooling apparatus adopts single cylinder cooling machine, the finished product naturally cooling, and cooling performance is poor, and the heat of finished product can not get effective utilization, is unfavorable for energy-saving and cost-reducing and reduces discharging.
Summary of the invention:
In order to overcome the shortcoming of prior art, the invention provides a kind of calcined dolomite production machine, the utilization rate of waste heat height of its flue gas and finished product, energy-conservation, consumption reduction.
The present invention solves the technical scheme that its technical problem takes: its involving vibrations sieve apparatus, feeder, preheater, rotary kiln, water cooler, transfer roller and finished product transfer point, described vibrating screen classifier has underground hopper, under the discharge port of underground hopper vibratory screening apparatus is arranged, the discharge port of vibratory screening apparatus has the material loading import of described feeder, the material loading outlet of feeder has the top feed bin of described preheater, the top feed bin communicates by the preheating chamber of tremie pipe with its below, the discharge port of preheating chamber has the push rod material feeder, the discharge port of push rod material feeder is by the feeding inlet of chute and described rotary kiln, the preheating zone is arranged in the rotary kiln successively, calcining zone and cooling zone, there is described water cooler the discharge port below of rotary kiln, the discharge port of water cooler has described transfer roller, and the material casting mouth of transfer roller has described finished product transfer point.
The present invention has following advantage: 1, adopted efficient preheater, it can carry out preheating to material with kiln tail high-temperature flue gas, 1000 ℃ on kiln tail can be cooled to below 280 ℃, simultaneously material can be preheating to and enter rotary kiln more than 700 ℃ again and calcine, so the waste heat of flue gas can be fully utilized.2, reduced kiln directly than, rotary kiln contraction in length, kiln directly than being reduced to below 15, have been realized energy-efficient.3, adopted high-effect cooling device, utilized cooling air to divide equally technology, can realize high efficient heat exchanging and evenly cooling,, compared, forged white heat and farthest utilized with traditional single cylinder cooling machine forging white being cooled to below 100 ℃.4, energy-conservation, consumption reduction.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is a structural representation of the present invention.
Embodiment
As shown in drawings, the present invention includes vibrating screen classifier 1, feeder 2, preheater 3, rotary kiln 4, water cooler 5, transfer roller and finished product transfer point (not drawing among the figure).Described vibrating screen classifier 1 has underground hopper, under the discharge port of underground hopper vibratory screening apparatus is arranged, the discharge port of vibratory screening apparatus has the material loading import of described feeder 2, the material loading outlet of feeder 2 has the top feed bin of described preheating 3 devices, the top feed bin communicates by the preheating chamber of tremie pipe with its below, the discharge port of preheating chamber has the push rod material feeder, the discharge port of push rod material feeder is by the feeding inlet of chute and described rotary kiln 4, the preheating zone is arranged in the rotary kiln 4 successively, calcining zone and cooling zone, there is described water cooler 5 the discharge port below of rotary kiln 4, the discharge port of water cooler 5 has described transfer roller, and the material casting mouth of transfer roller has described finished product transfer point.
Described vibrating screen classifier model is TZS-90-180, and manufacturer is a Taihang vibration device company.
Described feeder model is ZJXQ-1, and manufacturer is a Handan Xinxing Heavy Machinery Co., Ltd.
Described preheater model is ZJY-20, and factory is tame Handan Xinxing Heavy Machinery Co., Ltd.
Described rotary kiln model is ZJH-20, and manufacturer is a Handan Xinxing Heavy Machinery Co., Ltd.
Described water cooler model is ZJL-20, and manufacturer is a Handan Xinxing Heavy Machinery Co., Ltd.
Described transfer roller model is SD800-00, and manufacturer is the metallurgical company limiteds in three rivers.
During use, the raw material rhombspar is transported to the stock ground by automobile, by pack into the underground hopper of vibrating screen classifier 1 of automobile or shovel loader, after feeder 2 is sent rhombspar into the top feed bin of preheater 3, rhombspar enters preheating chamber by tremie pipe to rhombspar through bolting.Rhombspar absorbs the heat of hot waste gas, rhombspar and air-flow inverse motion, and independently preheating chamber can make and fully carry out heat exchange between rhombspar and the high-temperature flue gas, and the temperature of hot waste gas is reduced to below 280 ℃, and rhombspar is preheating to about 900 ℃.Rhombspar predecomposition 25-30%.The push rod material feeder computer controlled automatic of preheating chamber bottom, the rhombspar after the preheating enters rotary kiln 4 by chute.Rhombspar passes through preheating zone, calcining zone and the cooling zone in the rotary kiln 4 slowly, in an orderly manner.Dolomite calcination is mainly finished in rotary kiln, and fuel is coal gas or coal dust, and calcining temperature is 1400 ± 50 ℃ in the rotary kiln 4.Rhombspar is also done radial motion in the axial motion in rotary kiln 4, be in the state of rolling, and radiation, convection current, three kinds of heat exchange methods of conduction carry out simultaneously, make whole calcination process very even, and kiln hood, kiln tail are micro-negative pressure operation.The white water cooler that enters of forging after burning till cools off.Forge white enter shaft cooler 5 after, the secondary air cooling that blasts from water cooler 5 bottoms is forged white, and independently cooling infrastructure is evenly arranged cooling duct at whole section, can will forge white being cooled to below 100 ℃, secondary air is warmed up to 500-600 ℃, enters and participates in burning in the rotary kiln 4.Cooled forging whitely falls into drag conveyer through oscillating feeder even discharging, delivers to the finished product transfer point, rises to finished product bin through chapelet and gets final product.
Claims (1)
1. calcined dolomite production machine, it is characterized in that: its involving vibrations sieve apparatus (1), feeder (2), preheater (3), rotary kiln (4), water cooler (5), transfer roller and finished product transfer point, described vibrating screen classifier (1) has underground hopper, under the discharge port of underground hopper vibratory screening apparatus is arranged, the discharge port of vibratory screening apparatus has the material loading import of described feeder (2), the material loading outlet of feeder (2) has the top feed bin of described preheater (3), the top feed bin communicates by the preheating chamber of tremie pipe with its below, the discharge port of preheating chamber has the push rod material feeder, the discharge port of push rod material feeder is by the feeding inlet of chute and described rotary kiln (4), rotary kiln has the preheating zone in (4) successively, calcining zone and cooling zone, there is described water cooler (5) the discharge port below of rotary kiln (4), the discharge port of water cooler (5) has described transfer roller, and the material casting mouth of transfer roller has described finished product transfer point; Described preheater (3) is efficient preheater, kiln tail high-temperature flue gas can be carried out preheating to material, and 1000 ℃ on kiln tail is cooled to below 280 ℃, and simultaneously material is preheating to and enters rotary kiln more than 700 ℃ again and calcine; The kiln of described rotary kiln (4) is directly than being reduced to below 15 the rotary kiln contraction in length; Described water cooler (5) is a high-effect cooling device, utilizes cooling air to divide equally technology, can realize high efficient heat exchanging and evenly cooling, forging white being cooled to below 100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100751033A CN101659522B (en) | 2009-08-06 | 2009-08-06 | Calcined dolomite production machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100751033A CN101659522B (en) | 2009-08-06 | 2009-08-06 | Calcined dolomite production machine |
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| Publication Number | Publication Date |
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| CN101659522A CN101659522A (en) | 2010-03-03 |
| CN101659522B true CN101659522B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100751033A Active CN101659522B (en) | 2009-08-06 | 2009-08-06 | Calcined dolomite production machine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984319A (en) * | 2010-12-08 | 2011-03-09 | 鞍山市华杰建材技术开发有限公司 | Energy-saving and efficiency-improvement double-temperature-field rotary kiln system |
| CN103787598B (en) * | 2014-01-15 | 2015-10-21 | 沾益县鹏达农业开发有限责任公司 | A kind of unslaked lime delivery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996020381A1 (en) * | 1994-12-28 | 1996-07-04 | Ugo Brusa | Reactor for heating and treating materials in a controlled atmosphere |
| CN2492555Y (en) * | 2001-07-25 | 2002-05-22 | 郑荣龙 | Device for preparation of electric melting magnesia by external preheating and decomposing |
| CN1772677A (en) * | 2005-10-12 | 2006-05-17 | 王全祥 | Magnesia calcining boiling furnace rotary kiln method and apparatus |
-
2009
- 2009-08-06 CN CN2009100751033A patent/CN101659522B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996020381A1 (en) * | 1994-12-28 | 1996-07-04 | Ugo Brusa | Reactor for heating and treating materials in a controlled atmosphere |
| CN2492555Y (en) * | 2001-07-25 | 2002-05-22 | 郑荣龙 | Device for preparation of electric melting magnesia by external preheating and decomposing |
| CN1772677A (en) * | 2005-10-12 | 2006-05-17 | 王全祥 | Magnesia calcining boiling furnace rotary kiln method and apparatus |
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| CN101659522A (en) | 2010-03-03 |
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