CN201254529Y - Cement clinker calcination system - Google Patents
Cement clinker calcination system Download PDFInfo
- Publication number
- CN201254529Y CN201254529Y CNU2008201333276U CN200820133327U CN201254529Y CN 201254529 Y CN201254529 Y CN 201254529Y CN U2008201333276 U CNU2008201333276 U CN U2008201333276U CN 200820133327 U CN200820133327 U CN 200820133327U CN 201254529 Y CN201254529 Y CN 201254529Y
- Authority
- CN
- China
- Prior art keywords
- links
- kiln
- decomposing furnace
- cement
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a cement clinker burning system, which comprises a rotary kiln (1); a kiln head cover (3) is arranged at the front part of the rotary kiln (1); and a kiln head burner is arranged on the kiln head cover (3) which is connected with a single cooling machine (2). The cement clinker burning system is characterized in that an air beam grid plate (2-2) is arranged at a material feeding hole of the single cooling machine (2-1); the tail part of the rotary kiln (1) is connected with a decomposing furnace (5); the decomposing furnace (5) is connected with a first-stage pre-heater (6) and a second-stage pre-heater (7); the second-stage pre-heater (7) is connected with the first-stage pre-heater (6); the first-stage pre-heater (6) and the second-stage pre-heater (7) are connected with a waste heat boiler (8); the waste heat boiler (8) is connected with a settling chamber (9); the settling chamber (9) is connected with a high-voltage electric dust-collecting machine (10); and the high-voltage electric dust-collecting machine (10) is connected with a chimney (16) through a boiler draft fan (15). The cement clinker burning system can realize the cement clinker production and electricity generation through utilizing the waste heat at the same time, so as to improve the decomposing ratio of the material entering into the kiln.
Description
Technical field:
The utility model relates to the burning clinker of cement equipment technical field, especially a kind of burning clinker of cement system.
Background technology:
The calcination process of cement clinker is a most important process in the manufacture of cement.As the rotary kiln of one of cement burning plant, unit-hour output height, clinker quality are good because of having, mechanize, level of automation advantages of higher, by being adopted in most cement mill.
Rotary kiln is the physical-chemical reaction by fuel combustion, thermal exchange, material, with the raw material mature calcined material.Cement manufacturing industry is a high energy consumption industry, and the expenditure of energy expenditure is occupied very big proportion in its production cost, so people are seeking the mode of production that cuts down the consumption of energy and the way that reclaims the energy always.Cement kiln residual heat generating technology system utilizes the heat energy of the high-temp waste gas of kiln system, becomes electric energy by device translates such as waste heat boilers, is a UTILIZATION OF VESIDUAL HEAT IN and conservation measures.
At present, hollow dry method band cogeneration rotary kiln has been applied in the cement burning industry.The technical process of common a kind of hollow dry method kiln system with cogeneration is: burner sprays into coal dust in the rotary kiln, and high temperature heat source is provided, and is used for calcination of cement clinker; Cement slurry through calcination of cement clinker behind preheating, lime carbonate decomposition, solid state reaction and the sintering reaction, enters into the kiln hood cover in rotary kiln, fall into single cylinder cooling machine then and cool off, and cooling back cement clinker is delivered to the grog stocking system through transfer roller; Outside air carries out the heat exchange cooling with grog from single cylinder cooling machine, enter then combustion-supporting warm air is provided in kiln hood cover and the rotary kiln; Hot flue gas after the burning to first grade subsides chamber sedimentation part dust enters waste heat boiler, heat exchanger in the heating waste heat boiler, and water is heated vaporization in heat exchanger becomes hot steam, and the pipeline of hot steam by insulation is to the gas-turbine rotary electrification; Flue gas after the reheat heat exchanger enters the secondary settling pocket and continues the sedimentation dust, enters the dedusting of high voltage electric dust-precipitator then, and flue gas after being purified enters atmosphere by boiler induced-draft fan and chimney.This process system exists: the material dispersity is low, pre-heat effect is poor, grog yields poorly and shortcoming such as hear rate height.
Summary of the invention:
Be to solve the problem that prior art exists, the purpose of this utility model provides a kind of burning clinker of cement system.It has proposed the burning clinker of cement system of a kind of cogeneration band secondary preheater and decomposing furnace, thereby efficiently solves problems of the prior art.
For achieving the above object, the utility model adopts following technical scheme: described a kind of burning clinker of cement system, include rotary kiln (1), the front portion of rotary kiln (1) is provided with kiln hood cover (3), kiln hood burner (4) is arranged on the kiln hood cover (3), kiln hood cover (3) links to each other with single cylinder cooling machine (2-1), its characteristics are: the opening for feed place of described single cylinder cooling machine (2-1) is provided with air girder grate plate (2-2), high pressure blower (2-3) and the corresponding setting of air girder grate plate (2-2), the afterbody of described rotary kiln (1) links to each other with decomposing furnace (5), decomposing furnace (5) links to each other with secondary preheater (7) with one-level preheater (6) respectively by pipeline, secondary preheater (7) links to each other with one-level preheater (6) by pipeline, one-level preheater (6) links to each other with lift (12) with pipeline between the secondary preheater (7), one-level preheater (6) links to each other with waste heat boiler (8) by pipeline with secondary preheater (7), waste heat boiler (8) links to each other with settling pocket (9) by pipeline, settling pocket (9) links to each other with high voltage electric dust-precipitator (10) by pipeline, and high voltage electric dust-precipitator (10) links to each other with chimney (16) by boiler induced-draft fan (15).
Be provided with airduct (13) between described kiln hood cover (3) and the decomposing furnace (5).Decomposing furnace (5) is provided with decomposing furnace burner (14).Be provided with high-temperature blower (11) between waste heat boiler (8) and the settling pocket (9) owing to adopted technique scheme, the utlity model has following superiority:
1, it adopts the burning clinker of cement system and device of cogeneration band secondary preheater and decomposing furnace, be at the various physical-chemical reactions of cement clinker sintering process and utilize cogeneration and be provided with, realized the two big functions of producing cement clinker and utilizing cogeneration in the burning clinker of cement process to greatest extent.
2, in this technology owing to adopted band secondary preheater and decomposition furnace system, improved and gone into kiln material rate of decomposition, reduced the sintering load of rotary kiln.Thereby the output of rotary kiln can be increased substantially.
3, form composite cooler owing to novel air girder grate plate is set, increase high pressure blower simultaneously, make the high-temperature cement grog be subjected to forcing to cool off the temperature that has improved combustion air then in the air girder grate plate at the single cylinder cooling machine opening for feed; Fuel combustion conditions and after-flame degree have been strengthened; The raising of the output of rotary kiln in addition descends the unit heat consumption of rotary kiln significantly.
Description of drawings:
Fig. 1 is a system flow schematic diagram of the present utility model.
In Fig. 1: 1-rotary kiln; 2-1-single cylinder cooling machine; 2-2-air girder grate plate; 2-3-high pressure blower; 3-kiln hood cover; 4-kiln hood burner; 5-decomposing furnace; 6-one-level preheater; 7-secondary level preheater; 8-waste heat boiler; 9-settling pocket; 10-high voltage electric dust-precipitator; 11-high-temperature blower; 12-lift; 13-airduct; 14-decomposing furnace burner; 15-boiler induced-draft fan; 16-chimney;
Embodiment:
See Fig. 1, described a kind of burning clinker of cement system, include rotary kiln 1, the front portion of rotary kiln 1 is provided with kiln hood cover 3, kiln hood burner 4 is arranged on the kiln hood cover 3, kiln hood cover 3 links to each other with single cylinder cooling machine 2-1, its characteristics are: the opening for feed place of described single cylinder cooling machine 2-1 is provided with air girder grate plate 2-2, high pressure blower 2-3 and the corresponding setting of air girder grate plate 2-2, the afterbody of described rotary kiln 1 links to each other with decomposing furnace 5, decomposing furnace 5 links to each other with secondary preheater 7 with one-level preheater 6 respectively by pipeline, secondary preheater 7 links to each other with one-level preheater 6 by pipeline, one-level preheater 6 links to each other with lift 12 with pipeline between the secondary preheater 7, one-level preheater 6 links to each other with waste heat boiler 8 by pipeline with secondary preheater 7, waste heat boiler 8 links to each other with settling pocket 9 by pipeline, and settling pocket 9 links to each other with high voltage electric dust-precipitator 10 by pipeline, and high voltage electric dust-precipitator 10 links to each other with chimney 16 by boiler induced-draft fan 15.
Be provided with airduct 13 between described kiln hood cover 3 and the decomposing furnace 5.Decomposing furnace 5 is provided with decomposing furnace burner 14.Be provided with high-temperature blower 11 between waste heat boiler 8 and the settling pocket 9.
Described a kind of burning clinker of cement system, its technical process is: material is in lift 12 is promoted to connecting tube between secondary preheater 7 and the one-level preheater 6, bring in the one-level preheater 6 through ducted high velocity air disperse, separation, heat exchange (heating), material after the heating is collected through one-level preheater 6, and enters the decomposition of carrying out lime carbonate in the decomposing furnace 5 by the bottom discharge pipe; Material one small part after the decomposition directly enters rotary kiln 1 from decomposing furnace 5 bottom reducings and carries out sintering, another most of outlet through decomposing furnace 5 enter in the secondary preheater 7 disperse once more, separation, heat exchange (heating), material after the heating is collected through secondary preheater 7, and enters by the bottom discharge pipe and to carry out sintering in the rotary kiln 1.At this moment the material in rotary kiln 1 only carries out a spot of lime carbonate decomposition reaction, mainly is to carry out solid state reaction and sintering reaction.Cement clinker in rotary kiln 1 behind the sintering (finished product), enter into kiln hood cover 3, fall into air girder grate plate 2-2 then, blow over to enter after pressure is cooled off through high pressure blower 2-3 and proceed cooling among the single cylinder cooling machine 2-1, cooling back cement clinker is delivered to the grog stocking system through transfer roller.
Described a kind of burning clinker of cement system, the technical process of its system fuel and gas is: kiln hood burner 4 sprays into a part of fuel (coal dust) in the rotary kiln 1, and high temperature heat source is provided, and is used for calcination of cement clinker; Outside air is heated intensification with high temperature chamotte in air girder grate plate 2-2 and single cylinder cooling machine 2-1, enter then in kiln hood cover 1 and the rotary kiln 1 combustion-supporting warm air is provided; Decomposing furnace burner 14 sprays into another part fuel (coal dust) in the decomposing furnace 5, and warm source in providing is mainly used in the lime carbonate that accounts for thermal losses per-cent maximum and decomposes reaction.Combustion air in the decomposing furnace 5 is by being provided by the gas at air girder grate plate 2-2 and single cylinder cooling machine 2-1 heat temperature raising, promptly directly sending in the decomposing furnace 5 by the airduct 13 of drawing at kiln hood cover 3.
High-temperature flue gas after the burning to decomposing furnace 5 adds thermal material, enters secondary preheater 7 through connecting tube and adds thermal material, enters one-level preheater 6 through connecting tube again and adds thermal material.Enter waste heat boiler 8 then, heat exchanger in the heating waste heat boiler 8, water is heated vaporization in heat exchanger becomes hot steam, and the pipeline of hot steam by insulation is to the gas-turbine rotary electrification; Flue gas after the reheat heat exchanger enters settling pocket 9 through high-temperature blower 11 and carries out the sedimentation dust, enters 10 dedustings of high voltage electric dust-precipitator then, and flue gas after being purified enters atmosphere by original boiler induced-draft fan 15 and chimney 16.
Claims (4)
1, a kind of burning clinker of cement system, include rotary kiln (1), the front portion of rotary kiln (1) is provided with kiln hood cover (3), kiln hood burner (4) is arranged on the kiln hood cover (3), kiln hood cover (3) links to each other with single cylinder cooling machine (2-1), it is characterized in that: the opening for feed place of described single cylinder cooling machine (2-1) is provided with air girder grate plate (2-2), high pressure blower (2-3) and the corresponding setting of air girder grate plate (2-2), the afterbody of described rotary kiln (1) links to each other with decomposing furnace (5), decomposing furnace (5) links to each other with secondary preheater (7) with one-level preheater (6) respectively by pipeline, secondary preheater (7) links to each other with one-level preheater (6) by pipeline, one-level preheater (6) links to each other with lift (12) with pipeline between the secondary preheater (7), one-level preheater (6) links to each other with waste heat boiler (8) by pipeline with secondary preheater (7), waste heat boiler (8) links to each other with settling pocket (9) by pipeline, settling pocket (9) links to each other with high voltage electric dust-precipitator (10) by pipeline, and high voltage electric dust-precipitator (10) links to each other with chimney (16) by boiler induced-draft fan (15).
2, a kind of burning clinker of cement as claimed in claim 1 system is characterized in that: be provided with airduct (13) between described kiln hood cover (3) and the decomposing furnace (5).
3, a kind of burning clinker of cement as claimed in claim 1 system, it is characterized in that: described decomposing furnace (5) is provided with decomposing furnace burner (14).
4, a kind of burning clinker of cement as claimed in claim 1 system is characterized in that: be provided with high-temperature blower (11) between described waste heat boiler (8) and the settling pocket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201333276U CN201254529Y (en) | 2008-09-01 | 2008-09-01 | Cement clinker calcination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201333276U CN201254529Y (en) | 2008-09-01 | 2008-09-01 | Cement clinker calcination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254529Y true CN201254529Y (en) | 2009-06-10 |
Family
ID=40737847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201333276U Expired - Fee Related CN201254529Y (en) | 2008-09-01 | 2008-09-01 | Cement clinker calcination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254529Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003880A (en) * | 2010-12-30 | 2011-04-06 | 中信重工机械股份有限公司 | Mineral calcining testing system |
| CN102285770A (en) * | 2011-06-03 | 2011-12-21 | 陈建华 | Cement preparation method by using lime as raw material |
| CN102374773A (en) * | 2010-08-08 | 2012-03-14 | 中国铝业股份有限公司 | Modification method for carbon rotary kiln settling chamber |
| CN102435068A (en) * | 2011-09-01 | 2012-05-02 | 安徽海螺建材设计研究院 | Cement clinker burning system |
| CN102925219A (en) * | 2012-11-07 | 2013-02-13 | 东南大学 | Device for resource utilization of circulating fluidized bed coal-gasified discharged ash and use method |
| CN103206865A (en) * | 2013-03-22 | 2013-07-17 | 上海三融环保工程有限公司 | Efficient reburning denitrification device and technical method |
| CN104896915A (en) * | 2015-05-15 | 2015-09-09 | 石家庄新华能源环保科技股份有限公司 | Swing type rotary kiln |
| CN105238939A (en) * | 2015-11-10 | 2016-01-13 | 李鹏飞 | Pyrogenic process arsenic removing method and device |
| CN107235647A (en) * | 2017-06-30 | 2017-10-10 | 中国建筑材料科学研究总院 | Oxygen/carbon dioxide combustion technology applied to cement clinker production technology |
| CN111635153A (en) * | 2020-05-25 | 2020-09-08 | 南阳中联卧龙水泥有限公司 | Cement firing kiln system |
| CN111947453A (en) * | 2019-03-23 | 2020-11-17 | 周文剑 | Energy-saving and environment-friendly rotary cement kiln for recycling energy |
-
2008
- 2008-09-01 CN CNU2008201333276U patent/CN201254529Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374773B (en) * | 2010-08-08 | 2013-10-30 | 中国铝业股份有限公司 | Modification method for carbon rotary kiln settling chamber |
| CN102374773A (en) * | 2010-08-08 | 2012-03-14 | 中国铝业股份有限公司 | Modification method for carbon rotary kiln settling chamber |
| CN102003880A (en) * | 2010-12-30 | 2011-04-06 | 中信重工机械股份有限公司 | Mineral calcining testing system |
| CN102285770A (en) * | 2011-06-03 | 2011-12-21 | 陈建华 | Cement preparation method by using lime as raw material |
| CN102435068A (en) * | 2011-09-01 | 2012-05-02 | 安徽海螺建材设计研究院 | Cement clinker burning system |
| CN102435068B (en) * | 2011-09-01 | 2013-12-25 | 安徽海螺建材设计研究院 | Cement clinker burning system |
| CN102925219B (en) * | 2012-11-07 | 2014-06-11 | 东南大学 | Device for resource utilization of circulating fluidized bed coal-gasified discharged ash and use method |
| CN102925219A (en) * | 2012-11-07 | 2013-02-13 | 东南大学 | Device for resource utilization of circulating fluidized bed coal-gasified discharged ash and use method |
| CN103206865A (en) * | 2013-03-22 | 2013-07-17 | 上海三融环保工程有限公司 | Efficient reburning denitrification device and technical method |
| CN103206865B (en) * | 2013-03-22 | 2015-09-30 | 上海三融环保工程有限公司 | Efficient denitration by refueling device and process |
| CN104896915A (en) * | 2015-05-15 | 2015-09-09 | 石家庄新华能源环保科技股份有限公司 | Swing type rotary kiln |
| CN104896915B (en) * | 2015-05-15 | 2017-06-27 | 石家庄新华能源环保科技股份有限公司 | A kind of swing type rotary kiln |
| CN105238939A (en) * | 2015-11-10 | 2016-01-13 | 李鹏飞 | Pyrogenic process arsenic removing method and device |
| CN107235647A (en) * | 2017-06-30 | 2017-10-10 | 中国建筑材料科学研究总院 | Oxygen/carbon dioxide combustion technology applied to cement clinker production technology |
| CN111947453A (en) * | 2019-03-23 | 2020-11-17 | 周文剑 | Energy-saving and environment-friendly rotary cement kiln for recycling energy |
| CN111635153A (en) * | 2020-05-25 | 2020-09-08 | 南阳中联卧龙水泥有限公司 | Cement firing kiln system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201254529Y (en) | Cement clinker calcination system | |
| JP5568552B2 (en) | Cement clinker manufacturing method and cement clinker manufacturing facility | |
| CN201059880Y (en) | Pure middle-low-temperature waste heat power generation system of cement kiln | |
| CN104058608B (en) | A kind of shaft furnace of partition heated material | |
| CN102001837A (en) | Method and device for calcining materials by using low calorific value fuel | |
| CN105400532A (en) | Poly-generation system and method with coal pyrolysis as guide | |
| CN101195522A (en) | Method for calcination of chamotte in rotary cement kiln with coal gas as fuel | |
| CN101196370B (en) | Novel combined cement clinker roasted and waste heat generation system and technique | |
| CN101122388A (en) | Method and device for making fluid bed to produce super high-temperature fume | |
| CN101921074A (en) | Beam-type limekiln | |
| CN104119007A (en) | Sleeve type shaft kiln with power generation device | |
| CN204786513U (en) | Modified bin storage type pulverizing system | |
| CN208038322U (en) | A kind of lime shaft kiln cooling air cyclic utilization system | |
| CN205188211U (en) | Use many cogeneration system s of pyrolysis of coal as guide | |
| CN204058259U (en) | A kind of take coal dust as the roasting assembly of fuel | |
| CN211284248U (en) | Pulverized coal pyrolysis and coke powder combustion power generation coupling system | |
| CN213537825U (en) | Environment-friendly and efficient coupling power generation system of refuse derived fuel gasification and large coal-fired unit | |
| CN104119006B (en) | A kind of lime shaft kiln of built-in combustion room | |
| CN102889585A (en) | Environment-friendly energy-saving vertical boiling boiler | |
| CN204202383U (en) | With the industrial furnace of TRT | |
| CN207525187U (en) | A kind of heating unit of long flame dry distillation of coal complete alternation gas | |
| CN201907972U (en) | Energy-saving consumption-reducing production line for carbon products | |
| CN219083053U (en) | Comprehensive utilization power generation system for coal gangue | |
| CN2319767Y (en) | High temp. waste heat generating kiln with preheater | |
| CN202339079U (en) | Coal-fired hot air furnace capable of simultaneously producing steam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Huang Xinchun Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20091009 |