CN203065359U - White cement clinker bleaching equipment - Google Patents
White cement clinker bleaching equipment Download PDFInfo
- Publication number
- CN203065359U CN203065359U CN2012207353142U CN201220735314U CN203065359U CN 203065359 U CN203065359 U CN 203065359U CN 2012207353142 U CN2012207353142 U CN 2012207353142U CN 201220735314 U CN201220735314 U CN 201220735314U CN 203065359 U CN203065359 U CN 203065359U
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- CN
- China
- Prior art keywords
- cement clinker
- white cement
- monotubular
- hot blast
- rotary kiln
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- 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.)
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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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Abstract
The utility model discloses white cement clinker bleaching equipment, comprising a single-cylinder bleacher and a gate cooler connected in series with the single-cylinder bleacher, wherein the feeding hole of the single-cylinder bleacher is connected with the kiln door cover of a rotary kiln, while the discharge hole of the single-cylinder bleacher is connected with the feeding hole of the gate cooler; the gate cooler is provided with a hot air outlet; the hot air outlet of the gate cooler is connected with the kiln door cover of the rotary kiln and a decomposing furnace through a hot air recovery pipe, respectively; a water spraying pipeline and an air extraction pipeline are arranged inside the single-cylinder bleacher; the water spraying pipeline is connected with a water spraying system; and the air extraction pipeline is connected with a water vapor treatment system. The white cement clinker bleaching equipment provided by the utility model has the functions of cement clinker bleaching, cooling and heat recovering, and realizes heat recovery and utilization of the white cement clinker while guaranteeing bleaching and cooling of the cement clinker; and furthermore, the white cement clinker bleaching equipment is capable of greatly reducing heat consumption of the firing system.
Description
Technical field
The utility model relates to a kind of cement manufacture plant, particularly a kind of white cement clinker bleaching equipment.
Background technology
White portland cement is called for short " white cement ", is the whiteness that improves grog, requires the kiln discharge high temperature chamotte chilling bleaching process of taking to spray water in the white cement production process.Behind the grog kiln discharge (1400 ℃～1450 ℃) through shrend or the water spray chilling, most of liquid phase has little time crystallization in the grog just becomes vitreum, the small part particle of crystallization can not be grown up gradually and is small grains, has improved the reflection potential of crystal; Simultaneously, water spray produces a large amount of water vapour parcel grogs top layer secluding air moment, makes in the grog existing low price iron mineral not oxidized, thereby improves the grog whiteness.
At present, white cement clinker bleaching process both domestic and external mainly contains following several method: 1) immersion method: high temperature kiln discharge grog is directly entered the pond from kilneye, after the water-bath cooling, adopt equipment taking-up grogs such as machine for zipper.This method energy consumption height, grog immersion rear section aquation has reduced the intensity of grog.2) spraying in the rotary kiln: take the water spray cooling before the grog kiln discharge, spray into reductive agent simultaneously and stop generation Fe
2O
3, part water vapour is gone into kiln in this method has increased system energy consumption, has influenced the normal operation of rotary kiln.3) poaching engine method: the kiln discharge grog is gone into single cylinder cooling machine, claim the monotubular poaching engine again, arrange certain nozzle in the monotubular poaching engine, water coolant is sprayed onto on the grog uniformly, the water vapour of vaporization is extracted out by extraction pipe, after going out monotubular poaching engine grog and being cooled to 50 ℃～150 ℃ directly into clinker warehouse.This method is used widely for the main technique of existing white cement production line grog bleaching and cooling.
Usually, white cement clinker water spray is chilled to about 600 ° of C and can satisfies the bleaching requirement, if the remaining heat of grog can efficient recovery, can reduce the hear rate of firing system significantly.In above-mentioned three kinds of white cement clinker bleaching process, all the remaining heat of grog is not recycled effectively, method 1) do not possess the function of heat recuperation, method 2), the high-temperature vapor that the cooling grog generates 3) is extracted out by extraction pipe, by the heat of the recyclable a part of water vapour of equipment such as heat exchanger, but the recovery of heat effect is relatively poor.Therefore, develop energy-efficient white cement bleaching equipment, improve heat recovery efficiency, the dialogue Cement industry is energy-saving and cost-reducing significant.
Summary of the invention
The utility model provides a kind of white cement clinker bleaching equipment for solving the technical problem that exists in the known technology, and this equipment can reduce white cement production hear rate effectively, has energy-efficient characteristics.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of white cement clinker bleaching equipment, the cooling machine that comprises the monotubular poaching engine and be connected in series with it, the opening for feed of described monotubular poaching engine is connected with rotary kiln wicket cover, and discharge port is connected with the opening for feed of described cooling machine; Described cooling machine is provided with hot-blast outlet, and the hot-blast outlet of cooling machine reclaims airduct by hot blast and is connected respectively with decomposing furnace with rotary kiln wicket cover; Described monotubular poaching engine inside arranges water pipeline and air draft pipe, and described water pipeline is connected with water spray system, and described air draft pipe is connected with the steam treatment system.
The feed end of described monotubular poaching engine is provided with the matrix firebrick of different thickness.
The water outlet position of described water pipeline is arranged on the feed end of described monotubular poaching engine, and described water pipeline is provided with the injection flow rate setting device.
Described hot blast reclaims airduct and is provided with dust-precipitator, and described dust-precipitator is any one in settling pocket, cyclone, dust precipitator and the bag filter.
Described hot blast reclaims airduct and is provided with blower fan.
Described hot blast reclaims airduct and is connected respectively with decomposing furnace with rotary kiln wicket cover, reclaims airduct at described hot blast and is provided with valve, is provided with valve at the pipeline that connects described hot blast recovery airduct and rotary kiln wicket cover.
Advantage and the positively effect that the utlity model has are: the utility model has the function of grog bleaching, cooling and heat recuperation concurrently, go out rotary kiln high temperature white cement clinker by spraying water to 550 ~ 600 ℃ in the monotubular poaching engine, realize the grog chilling, reach bleaching effect; Air draft pipe is drawn to the steam treatment system with the water vapour that generates, and prevents that water vapour from going into rotary kiln, does not influence the rotary kiln operating mode; The grog that goes out 550 ~ 600 ° of C of monotubular poaching engine carries out recovery of heat by the cooling machine, go out cooling machine hot blast temperature and can reach 200 ℃～300 ℃, reclaim airduct through hot blast and enter act as a fuel in rotary kiln and the decomposing furnace burning combustion-supporting secondary air and tertiary air, can reduce the hear rate of firing system significantly.With respect to existing white cement clinker bleaching process, the utility model can make firing system unit's heat consumption of clinker reduce by 80～120kcal/kg grog.The utility model is the tooling that the white cement clinker bleaching technology is up-to-date, technology is optimum, energy consumption is minimum both at home and abroad at present, its technical process is reasonable, the design concept environmental protection, technical indicator advanced person, meet national energy-conserving and environment-protective trend, reduce enterprise's production cost, have very strong operability and practicality.
Description of drawings
Fig. 1 is the structural representation of the utility model white cement clinker bleaching equipment.
Among the figure: band arrow dotted line is air flow line, band arrow solid line is the materials flow direction, the 1st, and cooling machine, the 2nd, monotubular poaching engine, the 3rd, water pipeline, the 4th, air draft pipe, the 5th, dust-precipitator, the 6th, blower fan, the 7th, hot blast reclaims airduct, the 8th, water spray system, the 9th, steam treatment system, the 10th, rotary kiln wicket cover, the 11st, rotary kiln, the 12nd, decomposing furnace.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, a kind of white cement clinker bleaching equipment, the cooling machine 1 that comprises monotubular poaching engine 2 and be connected in series with it, the opening for feed of monotubular poaching engine 2 is connected with rotary kiln wicket cover 10, and discharge port is connected with the opening for feed of cooling machine 1; Cooling machine 1 is provided with hot-blast outlet, and the hot-blast outlet of cooling machine 1 reclaims airduct 7 by hot blast and is connected respectively with decomposing furnace 12 with rotary kiln wicket cover 10; Monotubular poaching engine 1 inside arranges water pipeline 3 and air draft pipe 4, and water pipeline 3 is connected with water spray system 8, and air draft pipe 4 is connected with steam treatment system 9.The cooling machine can third generation cooling machine or the 4th generation cooling machine, also can be the cooling machine of other types.Above-mentioned water pipeline is provided with the injection flow rate setting device, so that injection flow rate is controlled.
Mainly acting as kiln discharge high temperature white cement clinker water spray chilling of above-mentioned monotubular poaching engine 2 controlled out monotubular poaching engine clinker temperature at 550 ~ 600 ℃ by injection flow rate.The water spray position of water pipeline 3 is positioned at the feed end of monotubular poaching engine 2, injection flow rate can be regulated automatically according to going out the poaching engine clinker temperature, feed end at monotubular poaching engine 2 is provided with air draft pipe 4, the water vapour that water spray produces is taken away, avoid water vapour to go into kiln and reduce the clinkering zone flame temperature, influence clinker burning, water pipeline 3 and air draft pipe 4 pass monotubular poaching engine 2 and reach the grog opening for feed, in time the kiln discharge grog is carried out chilling, the water vapour of Sheng Chaning is also in time taken away simultaneously.
The opening for feed of cooling machine 1 connects the discharge port of monotubular poaching engine 2, cooling machine 1 mainly act as the heat content that reclaims out monotubular poaching engine grog, and grog is cooled to below 100 ℃.Cooling machine 1 connects hot blast and reclaims airduct 7, hot blast reclaims airduct 7 and is provided with dust-precipitator 5 and blower fan 6, draw wind by blower fan 6, the hot blast that goes out cooling machine 1 is introduced in rotary kiln wicket cover 10 and the decomposing furnace 12, combustion-supporting secondary air and the tertiary air of burning that act as a fuel respectively, its hot blast temperature can be increased to 200 ℃～300 ℃.The effect of dust-precipitator 5 is that the hot blast that cooling machine 1 is separated dedusting, and dust-precipitator 5 is provided with the blanking airlock.Dust-precipitator 5 patterns can be the dust-precipitator of settling pocket, cyclone, dust precipitator, bag filter or other types.Hot blast reclaims airduct 7 and is connected respectively with decomposing furnace 12 with rotary kiln wicket cover, reclaims airduct 7 at hot blast and is provided with valve, is provided with valve at the pipeline that connects hot blast recovery airduct 7 and rotary kiln wicket cover.Can carry out controlled distribution going out cooling machine hot blast, enter rotary kiln 11 and decomposing furnace 12 respectively.Water spray system 8 comprises water pump, nozzle, spray gun and Controlling System.Steam treatment system 9 comprises steam induced exhaust, dust precipitator and exhaust blower.
Principle of work of the present utility model and key problem in technology are:
1) grog bleaching: the clinker temperature that goes out rotary kiln 11 is 1350 ℃～1450 ℃, enters monotubular poaching engine 2 by wicket cover 10.Monotubular poaching engine 2 is general to adopt two grades of supporting way, and gradient is 3 °～5 °, and rotating speed is adjustable, the grog that goes out rotary kiln 11 chilling of spraying water in the process through monotubular poaching engine 2.The front end of feed end is provided with the matrix firebrick of different thickness, prolongs grog in the residence time of water spray quench zone.The water spray position is positioned at the poaching engine front end, and injection flow rate can be regulated automatically according to going out the poaching engine clinker temperature.Monotubular poaching engine 2 inside arrange water pipeline 3 and air draft pipe 4, water spray system 8 is introduced water in the water pipeline 3, and the water of ejection contacts with the grog that enters poaching engine 2, and clinker temperature reduces rapidly, become water vapour after the water heat absorption, be drawn to steam treatment system 9 by air draft pipe 4.Grog is chilled to certain control temperature through water spray and is bleached.
2) two-stage grog cooling: the utility model adopts monotubular poaching engine 2 and the cooling of cooling machine 1 secondary grog.The grog that goes out monotubular poaching engine 2 enters in the cooling machine 1, and the clinker temperature that can control cooling machine 1 by water spray system 8 adjusting injection flow rates is between 550 ℃～600 ℃.Cooling machine 1 adopts air-cooled mode that grog further is cooled to less than 100 ℃.
3) heat recuperation: hot blast the drawing under the wind at blower fan 6 that goes out cooling machine 1, after process dust-precipitator 5 gathers dust, entering hot blast reclaims in the airduct 7, hot blast recovery airduct 7 is divided into two-way and connects wicket cover 10 and decomposing furnace 12 respectively, the hot blast of going into wicket cover 10 is called secondary air, the hot blast of going into decomposing furnace 12 is called tertiary air, and the air quantity size of secondary air and tertiary air can be regulated by the valve that hot blast reclaims on the airduct 7.The temperature of secondary air and tertiary air is 200 ℃～300 ℃, and the heat that unit grog two, tertiary air reclaim reaches 80～120kcal/kg grog, and energy-saving effect is obvious.
The utility model has the function of cement clinker bleaching, cooling and heat recuperation concurrently, when guaranteeing white cement clinker bleaching and cooling, realize the pick up the heat of white cement clinker, solved the technical barrier that existing white cement clinker bleaching process is difficult to efficient recovery grog heat.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model 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 enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (6)
1. a white cement clinker bleaching equipment is characterized in that, the cooling machine that comprises the monotubular poaching engine and be connected in series with it, and the opening for feed of described monotubular poaching engine is connected with rotary kiln wicket cover, and discharge port is connected with the opening for feed of described cooling machine; Described cooling machine is provided with hot-blast outlet, and the hot-blast outlet of cooling machine reclaims airduct by hot blast and is connected respectively with decomposing furnace with rotary kiln wicket cover; Described monotubular poaching engine inside arranges water pipeline and air draft pipe, and described water pipeline is connected with water spray system, and described air draft pipe is connected with the steam treatment system.
2. the described white cement clinker bleaching equipment of claim 1 is characterized in that the feed end of described monotubular poaching engine is provided with the matrix firebrick of different thickness.
3. the described white cement clinker bleaching equipment of claim 1 is characterized in that the water outlet position of described water pipeline is arranged on the feed end of described monotubular poaching engine, and described water pipeline is provided with the injection flow rate setting device.
4. the described white cement clinker bleaching equipment of claim 1 is characterized in that, described hot blast reclaims airduct and is provided with dust-precipitator, and described dust-precipitator is any one in settling pocket, cyclone, dust precipitator and the bag filter.
5. a claim 1 or 4 described white cement clinker bleaching equipments is characterized in that, described hot blast reclaims airduct and is provided with blower fan.
6. described white cement clinker bleaching equipment of claim 1, it is characterized in that, described hot blast reclaims airduct and is connected respectively with decomposing furnace with rotary kiln wicket cover, reclaim airduct at described hot blast and be provided with valve, be provided with valve at the pipeline that connects described hot blast recovery airduct and rotary kiln wicket cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207353142U CN203065359U (en) | 2012-12-27 | 2012-12-27 | White cement clinker bleaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207353142U CN203065359U (en) | 2012-12-27 | 2012-12-27 | White cement clinker bleaching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065359U true CN203065359U (en) | 2013-07-17 |
Family
ID=48764173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207353142U Withdrawn - After Issue CN203065359U (en) | 2012-12-27 | 2012-12-27 | White cement clinker bleaching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203065359U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011640A (en) * | 2012-12-27 | 2013-04-03 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching process and equipment |
| CN103693871A (en) * | 2013-12-18 | 2014-04-02 | 南昌赣亨行技术开发有限公司 | White cement clinker bleaching machine |
| CN103693872A (en) * | 2013-12-18 | 2014-04-02 | 南昌赣亨行技术开发有限公司 | Distributor of white cement clinker grate cooler |
| CN104108891A (en) * | 2014-07-14 | 2014-10-22 | 中国中材国际工程股份有限公司 | White cement clinker bleaching device and process |
| CN104329945A (en) * | 2014-10-22 | 2015-02-04 | 天津水泥工业设计研究院有限公司 | Iron ore magnetic roasted ore waste heat recovery process and iron ore magnetic roasted ore waste heat recovery equipment |
| CN106630708A (en) * | 2016-12-28 | 2017-05-10 | 东源辉科建材发展有限公司 | White cement clinker bleaching method and device |
| CN106977120A (en) * | 2017-05-26 | 2017-07-25 | 葛洲坝石门特种水泥有限公司 | A kind of white cement clinker and its calcining, cooling bleaching method |
| CN108017294A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of white cement bleaching machine |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN108585565A (en) * | 2018-07-19 | 2018-09-28 | 江西银杉白水泥有限公司 | A kind of white cement clinker bleaching process that utilization rate of waste heat is high |
-
2012
- 2012-12-27 CN CN2012207353142U patent/CN203065359U/en not_active Withdrawn - After Issue
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011640A (en) * | 2012-12-27 | 2013-04-03 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching process and equipment |
| CN103693872B (en) * | 2013-12-18 | 2015-10-28 | 南昌赣亨行技术开发有限公司 | A kind of Distributor of white cement clinker grate cooler |
| CN103693871A (en) * | 2013-12-18 | 2014-04-02 | 南昌赣亨行技术开发有限公司 | White cement clinker bleaching machine |
| CN103693872A (en) * | 2013-12-18 | 2014-04-02 | 南昌赣亨行技术开发有限公司 | Distributor of white cement clinker grate cooler |
| CN104108891B (en) * | 2014-07-14 | 2015-11-18 | 中国中材国际工程股份有限公司 | A kind of white cement clinker bleaching process device and processing method |
| CN104108891A (en) * | 2014-07-14 | 2014-10-22 | 中国中材国际工程股份有限公司 | White cement clinker bleaching device and process |
| CN104329945A (en) * | 2014-10-22 | 2015-02-04 | 天津水泥工业设计研究院有限公司 | Iron ore magnetic roasted ore waste heat recovery process and iron ore magnetic roasted ore waste heat recovery equipment |
| CN104329945B (en) * | 2014-10-22 | 2016-08-17 | 天津水泥工业设计研究院有限公司 | A kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and equipment |
| CN106630708A (en) * | 2016-12-28 | 2017-05-10 | 东源辉科建材发展有限公司 | White cement clinker bleaching method and device |
| CN106977120A (en) * | 2017-05-26 | 2017-07-25 | 葛洲坝石门特种水泥有限公司 | A kind of white cement clinker and its calcining, cooling bleaching method |
| CN108017294A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of white cement bleaching machine |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN108017294B (en) * | 2018-01-31 | 2023-08-01 | 江西银杉白水泥股份有限公司 | Bleaching machine for white cement |
| CN108585565A (en) * | 2018-07-19 | 2018-09-28 | 江西银杉白水泥有限公司 | A kind of white cement clinker bleaching process that utilization rate of waste heat is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |