CN102425940A - Device and method for preparing and transporting lime rotary kiln pulverized coal - Google Patents
Device and method for preparing and transporting lime rotary kiln pulverized coal Download PDFInfo
- Publication number
- CN102425940A CN102425940A CN2011103786239A CN201110378623A CN102425940A CN 102425940 A CN102425940 A CN 102425940A CN 2011103786239 A CN2011103786239 A CN 2011103786239A CN 201110378623 A CN201110378623 A CN 201110378623A CN 102425940 A CN102425940 A CN 102425940A
- Authority
- CN
- China
- Prior art keywords
- coal
- pulverized coal
- rotary kiln
- pipeline
- lime
- 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.)
- Pending
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a device and a method for preparing and transporting lime rotary kiln pulverized coal. A raw coal bunker is connected with an inlet of a quantitative coal feeder; an outlet of the quantitative coal feeder is connected with a coal mill; the upper part of the coal mill is provided with a separator; an inlet of a bag type pulverized coal collector is connected with the separator; an outlet of the bag type pulverized coal collector is connected with an exhaust fan; the bottom of the bag type pulverized coal collector is connected with a pulverized coal bunker; the pulverized coal bunker is connected with a rotary kiln by a pipeline with an air blower; and the rotary kiln is connected with the bottom of the coal mill by the pipeline with a circulating fan. The method comprises the following steps of: filling crushed and screened conny into the raw coal bunker, and feeding the conny to the coal mill through the quantitative coal feeder; drying and levigating pulverized coal in the coal mill, absorbing the pulverized coal into the bag type pulverized coal collector by negative pressure generated by a main exhaust blower, separating gas from the pulverized coal, and storing the separated pulverized coal; and transporting the pulverized coal to the rotary kiln by a high-pressure fan or a pressure gas source for burning in the kiln so as to calcine lime. The device is stable and reliable in work, small in investment scale, small in occupied land, less and simple in equipment, safe and reliable, less in coal type limitation and low in pollution.
Description
Technical field
The present invention relates to the metallurgy lime class, particularly burn coal stone ash rotary system, relate in particular to pulverized coal preparation and transport and method thereof in a kind of lime rotary kiln.
Background technology
For solve the scale of investment that exists in traditional pulverized coal preparation and the winding-up big, take up an area of many complicated, inflammable and explosive, many, the problems such as pollution is big of big, equipment to the coal restriction; Since each steel industry proposes energy-saving and emission-reduction; And lime burner furnace is used pulverized coal preparation and blowing process more and more widely under the situation that does not have other fuel thermal source.
In order to make full use of coal in small, broken bits and this resource of low calorific value coal that clamp dog or coal produce in transportation; And easily it is sprayed in the lime burner furnace, the technical staff in this pulverized coal preparation and winding-up field just is being devoted to seek the reliable and stable process equipment of a kind of pulverized coal preparation and coal injection.
Summary of the invention
The present invention is intended to realize this goal and a kind of lime rotary kiln pulverized coal preparation and transport and method thereof is provided; It has overcome the difficulty of prior art; Make full use of coal in small, broken bits and this resource of low calorific value coal that clamp dog or coal produce in transportation, and easily it is sprayed in the lime burner furnace.
Technical solution of the present invention is following:
A kind of lime rotary kiln pulverized coal preparation and transport, it comprises run coal bin, rotary kiln, said device also comprises quantitative feeder, coal pulverizer, pocket type powder collector, exhaust blower, Pulverized Coal Bin, air blast and circulating fan;
Said run coal bin connects the inlet of quantitative feeder; The outlet of said quantitative feeder connects coal pulverizer, and the top of said coal pulverizer is provided with a separator, and the inlet of said pocket type powder collector connects separator; The outlet of said pocket type powder collector connects exhaust blower; The bottom of said pocket type powder collector connects Pulverized Coal Bin, and said Pulverized Coal Bin connects rotary kiln through the pipeline that is provided with air blast, and said rotary kiln connects the bottom of coal pulverizer through the pipeline that is provided with circulating fan.
Said device also comprises a meausring apparatus, is arranged on the exit of Pulverized Coal Bin.
Said rotary kiln is provided with a burner, and said burner connects meausring apparatus.
Said device also comprises a deduster, is arranged on the pipeline between rotary kiln to coal pulverizer.
Said device also comprises a nitrogen protection device, connects the coal pulverizer facility through plurality of conduits.
Said pocket type powder collector is the long bag and low pulse cloth bag collection machine.
Pipeline between said circulating fan and the deduster is provided with a control valve 15; Pipeline collateral branch pipe between said control valve 15 and the deduster is connected one and has the cool air hose of mixing cold blast sliding valve; Said pocket type powder collector to the pipeline between the exhaust blower is provided with a control valve 5; Said pocket type powder collector to the pipeline between the Pulverized Coal Bin is provided with a control valve 18; Said Pulverized Coal Bin 7 through one be provided with control valve 17 pipeline connect the inlet of pocket type powder collector; Be provided with a control valve 10 between said rotary kiln and the Pulverized Coal Bin.
A kind of lime rotary kiln pulverized coal preparation and carrying method adopt above-mentioned lime rotary kiln pulverized coal preparation and transport, may further comprise the steps:
The broken coal that (1) will the pass through crushing and screening run coal bin of packing into is supplied with coal pulverizer through quantitative feeder;
(2) coal dust is drawn in the pocket type powder collector by the negative pressure that main exhaust fan produces in the levigate back of mill drying;
(3) in the pocket type powder collector, carry out the gas powder and separate, coal dust is fallen in the Pulverized Coal Bin through elephant trunk and is stored;
(4) adopt high pressure positive blower or pressure gas source that coal dust is transported to rotary kiln, be used for the kiln internal combustion and come lime burning.
In the said step (1), the particle size diameter of said broken coal is less than 40mm.
In the said step (2), said coal pulverizer feeds dry mixed gas and is used for dry coal dust, and coal pulverizer porch dry gas temperature is 250 ℃, and coal dust is milled down to-200 orders more than 80% in coal pulverizer, moisture < 1.5%.
The present invention will be applicable to the broken coal that the raw coal of lime rotary kiln winding-up produces through crushing and screening transhipment back, the run coal bin of packing into; Through feeder, supply with coal-grinding equipment, be milled down to-200 orders more than 80%, moisture < 1.5%; Separate through the gas powder again, with finished product coal dust loading coal powder storehouse; Through after the weighing equipment metering, with high pressure positive blower or pressure gas source coal dust is transported to the burner of lime rotary kiln, be used for the kiln internal combustion and come lime burning.
Utilization of the present invention is drawn the kiln hood heated dry air and is blasted in the coal-grinding equipment through deduster, circulating fan, and the kiln hood hot blast mixes the cold wind temperature adjustment again and becomes qualified coal mill oven dry wind through dedusting.
Control fuel gas and dust amount and method of temperature are among the present invention: the hot blast that kiln hood is drawn carries out udst separation, controls into the mill hot blast temperature through mixing cold blast sliding valve introducing cold air.
The present invention adopts the method for coal dust weighing equipment under the powder storehouse, the weighing equipment precision to 0.05% that wherein requires.
The present invention adopts the auxiliary method of carrying of pressed gas, and the pressure of the assist gas that wherein requires must add the pressure loss+400Pa through transfer pipeline and equipment more than or equal to klining mouth termination ejection required pressure.
The pipeline equipment of pulverized coal conveying further comprises: trunk line: be used for concentrating pulverized coal conveying, make the concentration and the pressure loss keep suitable value; Purging device: be used for the scavenging pipeline accumulated powder.
The present invention has been owing to adopted above technical scheme, and with respect to prior art, lime rotary kiln pulverized coal preparation of the present invention and transport and method thereof make full use of coal in small, broken bits and this resource of low calorific value coal that clamp dog or coal produce in transportation; And easily it is sprayed in the lime burner furnace, its working stability is reliable, and scale of investment is little; Take up an area of for a short time, equipment is few and simple, safe and reliable; Few to the coal restriction, pollute little.
Description of drawings
Fig. 1 is a kind of lime rotary kiln pulverized coal preparation of the present invention and the sketch map that is connected of transport.
Fig. 2 is the flow chart of a kind of lime rotary kiln pulverized coal preparation of the present invention and carrying method.
Reference numeral:
1 is run coal bin, and 2 is quantitative feeder, and 3 is coal pulverizer, and 4 is the pocket type powder collector, and 5 is control valve; 6 is exhaust blower, and 7 is Pulverized Coal Bin, and 8 is meausring apparatus, and 9 is air blast, and 10 is control valve; 11 is burner, and 12 is rotary kiln, and 13 is deduster, and 14 for mixing cold blast sliding valve, and 15 is control valve; 16 is circulating fan, and 17 is control valve, and 18 is control valve, and 19 is nitrogen protection device.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Referring to Fig. 1; The invention provides a kind of lime rotary kiln pulverized coal preparation and transport, it mainly is made up of run coal bin 1, rotary kiln 12, quantitative feeder 2, coal pulverizer 3, pocket type powder collector 4, exhaust blower 6, Pulverized Coal Bin 7, air blast 9 and circulating fan 16.
Run coal bin 1 connects the inlet of quantitative feeder 2; Quantitatively the outlet of feeder 2 connects coal pulverizer 3, and the top of coal pulverizer 3 is provided with a separator, and the inlet of pocket type powder collector 4 connects this separator; The outlet of pocket type powder collector 4 connects exhaust blower 6; The bottom of pocket type powder collector 4 connects Pulverized Coal Bin 7, and Pulverized Coal Bin 7 connects rotary kiln 12 through the pipeline that is provided with air blast 9, and rotary kiln 12 connects the bottom of coal pulverizer 3 through the pipeline that is provided with circulating fan 16.
As shown in fig. 1, the pipeline between circulating fan 16 and the deduster 13 is provided with a control valve 15.Pipeline collateral branch pipe between control valve 15 and the deduster 13 is connected one and has the cool air hose of mixing cold blast sliding valve 14.Pipeline between pocket type powder collector 4 to the exhaust blower 6 is provided with a control valve 5.Pipeline between pocket type powder collector 4 to the Pulverized Coal Bin 7 is provided with a control valve 18.Pulverized Coal Bin 7 through one be provided with control valve 17 pipeline connect the inlet of pocket type powder collector 4.Be provided with a control valve 10 between rotary kiln 12 and the Pulverized Coal Bin 7.
This device is also installed a meausring apparatus 8, and this meausring apparatus 8 is arranged on the exit of Pulverized Coal Bin 7.This device is also installed a deduster 13, and this deduster 13 is arranged on the pipeline of 3 of rotary kiln 12 to coal pulverizers.This device is also installed a nitrogen protection device 19, and this nitrogen protection device 19 connects coal pulverizer 3 facilities such as grade through plurality of conduits.
On rotary kiln 12, be provided with a burner 11, this burner 11 connects meausring apparatus 8.Pocket type powder collector 4 in the device is the long bag and low pulse cloth bag collection machine.
Referring to Fig. 2, the present invention also provides a kind of lime rotary kiln pulverized coal preparation and carrying method, adopts above-mentioned lime rotary kiln pulverized coal preparation and transport, and this method may further comprise the steps:
The broken coal that (1) will the pass through crushing and screening run coal bin of packing into is supplied with coal pulverizer through quantitative feeder.The particle size diameter of broken coal is less than 40mm.
(2) coal dust is drawn in the pocket type powder collector by the negative pressure that main exhaust fan produces in the levigate back of mill drying.Coal pulverizer feeds dry mixed gas and is used for dry coal dust, and coal pulverizer porch dry gas temperature is 250 ℃, and coal dust is milled down to-200 orders more than 80% in coal pulverizer, moisture < 1.5%.
(3) in the pocket type powder collector, carry out the gas powder and separate, coal dust is fallen in the Pulverized Coal Bin through elephant trunk and is stored.
(4) adopt high pressure positive blower or pressure gas source that coal dust is transported to rotary kiln, be used for the kiln internal combustion and come lime burning.
In concrete the application, the present invention mainly comprises coal supply facility, pulverized coal preparation facility, nitrogen protecting system and injection system.Wherein:
Coal supply facility: mainly form by run coal bin and metering device.Behind the lump coal regrading fine coal of 40mm, and coal cinder perhaps will be fit to the raw coal of lime burner furnace as required at the coal in small, broken bits that fragmentation transhipment produces, and through delivering to run coal bin after the thick broken screening, give coal pulverizer by metering device feeding at the bottom of the storehouse then.
Pulverized coal preparation facility: comprise all kinds of auxiliary equipment such as coal pulverizer, deduster, receipts powder device, meausring apparatus, main exhaust fan and feeding system.The levigate and dry of raw coal carries out in coal pulverizer simultaneously.The gas that is used for dry and pulverized coal conveying is extracted out by kiln hood.The high-temperature gas that the hot-air that kiln hood is extracted out is about about 600 ℃ and the cold wind of inspiration are mixed into required dry gas.
Coal pulverizer porch dry gas temperature is～250 ℃, and dry gas is taken the coal dust of certain fineness to be positioned at coal pulverizer top separator and separated after getting into coal pulverizer.Undesirable rough coal powder falls back on the mill, is milled once more.The coal dust that fineness is qualified gets into through the carrier pipe that rises with dry gas receives the powder device.Stone coal that can not be levigate is fallen in the slag ladle of coal pulverizer bottom, is regularly removed by manual work.Components of system as directed tail gas is discharged by main exhaust fan, through smoke stack emission in atmosphere.
Get off coal powder collection through receiving the powder device, get into Pulverized Coal Bin through powder sinking tube.The coal dust meausring apparatus is set under the Pulverized Coal Bin.Receiving the powder device is the long bag and low pulse cloth bag collection machine.The gas that contains coal dust is got into by the casing middle part, after the buffering area effect through filter bag, the coal dust detention outside bag, get into purified gas in the bag through the sack on top to upper box, and discharge from upper box.Filter bag is arranged to plurality of rows, and every row has a pulse valve and winding-up pipe, and the pipe top nozzle is aimed at the center of filter bag.Release pulses gas dashes the filter bag surface dust fall during deashing.
Pulverized coal preparation system relies on the draft of main exhaust fan to form negative pressure, takes out from rotary kiln end and exports to the main exhaust fan inlet, and negative pressure increases gradually.Pulverized coal preparation system adopts negative pressure system.Main exhaust fan is the power source of pulverized coal conveying in the pulverized coal preparation system.System also is provided with mixes cool air hose.The effect of cool air hose is a cooling rate of when shutting down, accelerating system.
Nitrogen protecting system: several nitrogen protections are set in coal mill system purge point, the prevention burning occurs with the hazards of blast, thereby < 300ppm guarantees system safety operation for the temperature of control system and CO content.
Injection system: the winding-up facility is made up of Pulverized Coal Bin, meausring apparatus, air blast, coal powder lance and valve etc.Coal dust falls in the Pulverized Coal Bin storing after receiving the collection of powder device.When winding-up started, coal dust fell into meausring apparatus by gravity, by air blast coal dust is blown to kiln again before combustion system participate in burning.
As shown in fig. 1, the present invention will be suitable for the raw coal of lime rotary kiln, through the broken coal of crushing and screening transhipment back generation; Granularity is below 40mm; The run coal bin 1 of packing into is supplied with coal pulverizers 3 through quantitative feeder 2, and coal pulverizer 3 feeds the dry mixed gas and is used for dry coal dust; Coal dust is drawn in the pocket type powder collector 4 by the negative pressure that main exhaust fan produces in the levigate back of coal pulverizer 3 inner dryings; In pocket type powder collector 4, carrying out the gas powder separates; Gas after the filtering is taken away from pocket type powder collector 4 tops by dedusting exhaust blower 6; Enter atmosphere through chimney, coal dust is fallen in the Pulverized Coal Bin 7 through elephant trunk and is stored.
The high temperature drying gas that the dry mixed gas that feeds coal pulverizer is extracted out by rotary kiln end with by mixing mutually from mixing the air that cold blast sliding valve introduces.Nitrogen through nitrogen system is introduced is controlled the temperature and the CO content of gaseous mixture, thereby makes system safety operation.
Be stored in the coal dust of Pulverized Coal Bin 7, when needs are jetted, open the blanking valve under the Pulverized Coal Bin,,, deliver to the preceding combustion system of kiln and participate in burning again through the coal dust conveying fan through the scale hooper weighing.
In sum, lime rotary kiln pulverized coal preparation of the present invention and transport and method thereof make full use of coal in small, broken bits and this resource of low calorific value coal that clamp dog or coal produce in transportation, and easily it are sprayed in the lime burner furnace; Its working stability is reliable, and scale of investment is little, takes up an area of little; Equipment is few and simple; Safe and reliable, few to the coal restriction, pollute little.
Certainly; Those skilled in the art in the present technique field will be appreciated that; The foregoing description only is to be used for explaining the present invention; And be not with opposing qualification of the present invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (10)
1. lime rotary kiln pulverized coal preparation and transport; It comprises run coal bin (1), rotary kiln (12), it is characterized in that: said device also comprises quantitative feeder (2), coal pulverizer (3), pocket type powder collector (4), exhaust blower (6), Pulverized Coal Bin (7), air blast (9) and circulating fan (16);
Said run coal bin (1) connects the inlet of quantitative feeder (2); The outlet of said quantitative feeder (2) connects coal pulverizer (3); The top of said coal pulverizer (3) is provided with a separator; The inlet of said pocket type powder collector (4) connects separator, and the outlet of said pocket type powder collector (4) connects exhaust blower (6), and the bottom of said pocket type powder collector (4) connects Pulverized Coal Bin (7); Said Pulverized Coal Bin (7) connects rotary kiln (12) through the pipeline that is provided with air blast (9), and said rotary kiln (12) connects the bottom of coal pulverizer (3) through the pipeline that is provided with circulating fan (16).
2. lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport is characterized in that: said device also comprises a meausring apparatus (8), is arranged on the exit of Pulverized Coal Bin (7).
3. lime rotary kiln pulverized coal preparation as claimed in claim 2 and transport is characterized in that: said rotary kiln (12) is provided with a burner (11), and said burner (11) connects meausring apparatus (8).
4. lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport is characterized in that: said device also comprises a deduster (13), is arranged on the pipeline between rotary kiln (12) to coal pulverizer (3).
5. lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport is characterized in that: said device also comprises a nitrogen protection device (19), connects coal pulverizer (3) facility through plurality of conduits.
6. lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport is characterized in that: said pocket type powder collector (4) is the long bag and low pulse cloth bag collection machine.
7. lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport is characterized in that: the pipeline between said circulating fan (16) and the deduster (13) is provided with a control valve (15); Pipeline collateral branch pipe between said control valve (15) and the deduster (13) is connected one and has the cool air hose of mixing cold blast sliding valve (14); Pipeline between said pocket type powder collector (4) to the exhaust blower (6) is provided with a control valve (5); Pipeline between said pocket type powder collector (4) to the Pulverized Coal Bin (7) is provided with a control valve (18); Said Pulverized Coal Bin (7) through one be provided with control valve (17) pipeline connect the inlet of pocket type powder collector (4); Be provided with a control valve (10) between said rotary kiln (12) and the Pulverized Coal Bin (7).
8. lime rotary kiln pulverized coal preparation and carrying method adopt lime rotary kiln pulverized coal preparation as claimed in claim 1 and transport, it is characterized in that, may further comprise the steps:
The broken coal that (1) will the pass through crushing and screening run coal bin of packing into is supplied with coal pulverizer through quantitative feeder;
(2) coal dust is drawn in the pocket type powder collector by the negative pressure that main exhaust fan produces in the levigate back of mill drying;
(3) in the pocket type powder collector, carry out the gas powder and separate, coal dust is fallen in the Pulverized Coal Bin through elephant trunk and is stored;
(4) adopt high pressure positive blower or pressure gas source that coal dust is transported to rotary kiln, be used for the kiln internal combustion and come lime burning.
9. lime rotary kiln pulverized coal preparation as claimed in claim 8 and carrying method is characterized in that: in the said step (1), the particle size diameter of said broken coal is less than 40mm.
10. lime rotary kiln pulverized coal preparation as claimed in claim 8 and carrying method; It is characterized in that: in the said step (2); Said coal pulverizer feeds dry mixed gas and is used for dry coal dust; Coal pulverizer porch dry gas temperature is 250 ℃, and coal dust is milled down to-200 orders more than 80% in coal pulverizer, moisture < 1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103786239A CN102425940A (en) | 2011-11-25 | 2011-11-25 | Device and method for preparing and transporting lime rotary kiln pulverized coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103786239A CN102425940A (en) | 2011-11-25 | 2011-11-25 | Device and method for preparing and transporting lime rotary kiln pulverized coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425940A true CN102425940A (en) | 2012-04-25 |
Family
ID=45959946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103786239A Pending CN102425940A (en) | 2011-11-25 | 2011-11-25 | Device and method for preparing and transporting lime rotary kiln pulverized coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102425940A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776028A (en) * | 2014-01-20 | 2014-05-07 | 杭州浙大天元科技有限公司 | Micro-oil ignition system and method applicable to W-type flame boiler |
| CN104180383A (en) * | 2014-07-30 | 2014-12-03 | 上海题桥能源科技发展有限公司 | Safe and environment-friendly pulverized coal preparation method and system |
| CN104456600A (en) * | 2014-12-16 | 2015-03-25 | 抚顺天赐石灰石开发有限公司 | Lime rotary kiln pulverized coal preparing and conveying device |
| CN107642985A (en) * | 2017-09-30 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of rotary kiln coal powder injection technological process |
| CN107763651A (en) * | 2017-09-14 | 2018-03-06 | 云南中翼鼎东能源科技开发有限公司 | The method and its coal supply system of a kind of boiler coal feeding |
| CN107760884A (en) * | 2017-11-14 | 2018-03-06 | 临沂鑫海新型材料有限公司 | Prereduction desulfurizer in rotary kiln in RKEF method smelting ferronickels |
| CN110404651A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of security system and its method ensureing pulverized coal preparation process |
| CN113566563A (en) * | 2021-06-16 | 2021-10-29 | 福建三明南方水泥有限公司 | Combustion control method of intelligent rotary kiln |
| CN114309013A (en) * | 2022-01-05 | 2022-04-12 | 太仓北新建材有限公司 | Gypsum board production line wastepaper recovery unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148019A (en) * | 1986-12-09 | 1988-06-20 | Babcock Hitachi Kk | Pulverized coal burning system |
| CN1257757A (en) * | 1999-12-29 | 2000-06-28 | 上海宝钢集团公司 | Tail gas recirculation system for coal injection and pulverization of blast furnace and its control method |
| CN1710328A (en) * | 2005-07-01 | 2005-12-21 | 煤炭科学研究总院北京煤化工研究分院 | Medium and small sized industrial pulverized-coal fired boiler |
| US20110214427A1 (en) * | 2010-03-04 | 2011-09-08 | Xu Zhao | Process for reducing coal consumption in coal fired power plant with steam piping drying |
| CN202328315U (en) * | 2011-11-26 | 2012-07-11 | 宝钢工程技术集团有限公司 | Device for preparing and transporting lime rotary kiln coal powders |
| CN202329087U (en) * | 2011-11-26 | 2012-07-11 | 宝钢工程技术集团有限公司 | Lime rotary kiln coal powder preparation conveying device |
-
2011
- 2011-11-25 CN CN2011103786239A patent/CN102425940A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148019A (en) * | 1986-12-09 | 1988-06-20 | Babcock Hitachi Kk | Pulverized coal burning system |
| CN1257757A (en) * | 1999-12-29 | 2000-06-28 | 上海宝钢集团公司 | Tail gas recirculation system for coal injection and pulverization of blast furnace and its control method |
| CN1710328A (en) * | 2005-07-01 | 2005-12-21 | 煤炭科学研究总院北京煤化工研究分院 | Medium and small sized industrial pulverized-coal fired boiler |
| US20110214427A1 (en) * | 2010-03-04 | 2011-09-08 | Xu Zhao | Process for reducing coal consumption in coal fired power plant with steam piping drying |
| CN102191956A (en) * | 2010-03-04 | 2011-09-21 | 天华化工机械及自动化研究设计院 | Method for reducing coal consumption of coal fired power plant by arranging steam pipe type drying system |
| CN202328315U (en) * | 2011-11-26 | 2012-07-11 | 宝钢工程技术集团有限公司 | Device for preparing and transporting lime rotary kiln coal powders |
| CN202329087U (en) * | 2011-11-26 | 2012-07-11 | 宝钢工程技术集团有限公司 | Lime rotary kiln coal powder preparation conveying device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776028A (en) * | 2014-01-20 | 2014-05-07 | 杭州浙大天元科技有限公司 | Micro-oil ignition system and method applicable to W-type flame boiler |
| CN103776028B (en) * | 2014-01-20 | 2016-03-30 | 杭州浙大天元科技有限公司 | Be applicable to micro oil ignition system and the method thereof of W type flame boiler |
| CN104180383A (en) * | 2014-07-30 | 2014-12-03 | 上海题桥能源科技发展有限公司 | Safe and environment-friendly pulverized coal preparation method and system |
| CN104180383B (en) * | 2014-07-30 | 2016-08-24 | 上海题桥能源科技发展有限公司 | The coal dust preparation system of a kind of safety and environmental protection and preparation method |
| CN104456600A (en) * | 2014-12-16 | 2015-03-25 | 抚顺天赐石灰石开发有限公司 | Lime rotary kiln pulverized coal preparing and conveying device |
| CN107763651A (en) * | 2017-09-14 | 2018-03-06 | 云南中翼鼎东能源科技开发有限公司 | The method and its coal supply system of a kind of boiler coal feeding |
| CN107642985A (en) * | 2017-09-30 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of rotary kiln coal powder injection technological process |
| CN107760884A (en) * | 2017-11-14 | 2018-03-06 | 临沂鑫海新型材料有限公司 | Prereduction desulfurizer in rotary kiln in RKEF method smelting ferronickels |
| CN110404651A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of security system and its method ensureing pulverized coal preparation process |
| CN113566563A (en) * | 2021-06-16 | 2021-10-29 | 福建三明南方水泥有限公司 | Combustion control method of intelligent rotary kiln |
| CN114309013A (en) * | 2022-01-05 | 2022-04-12 | 太仓北新建材有限公司 | Gypsum board production line wastepaper recovery unit |
| CN114309013B (en) * | 2022-01-05 | 2023-06-20 | 北新建材(苏州)有限公司 | Paper scrap recovery device for gypsum board production line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102425940A (en) | Device and method for preparing and transporting lime rotary kiln pulverized coal | |
| CN100501234C (en) | Integrated system for the extraction of heavy ash, conversion thereof into light ash and reduction of unburnt matter | |
| CN102502262B (en) | Pneumatic transmission and blast furnace injection technology and system for removing dust of coke oven | |
| CN101397598B (en) | Coal fine preparation, blowing method and device from packed-bed smelting reduction furnace | |
| CN103234215B (en) | Blended pulverized coal combustion control device and method | |
| JP2010242999A (en) | Method and device for directly pulverizing and burning woody biomass and boiler system | |
| KR102045781B1 (en) | Grinding and Drying Plant | |
| CN104086107A (en) | Method of comprehensively utilizing precipitator ash and slag of calcium carbide furnace | |
| CN206131034U (en) | Pulverized coal preparation device | |
| CN102889608B (en) | Direct fired pulverizing system of smoke pre-drying lignite fan mill | |
| CN102661666A (en) | Tail gas utilization method and tail gas utilization system of rotary lime kiln | |
| CN102384664A (en) | Sintering and cooling integrated method for efficiently recovering and utilizing waste heat resources and device thereof | |
| CN107013902A (en) | Lignite couples boiler combustion system with biomass | |
| CN105627345A (en) | Pulverized coal preparation system and pulverized coal preparation method | |
| CN202328315U (en) | Device for preparing and transporting lime rotary kiln coal powders | |
| CN109812830A (en) | A kind of biologic grain and coal-fired coupled electricity-generation system and method | |
| CN104326688B (en) | A kind of a large amount of, system and method for safe utilization brown coal calcination of cement clinker | |
| CN202329087U (en) | Lime rotary kiln coal powder preparation conveying device | |
| CN208269617U (en) | A kind of energy-saving and environment-friendly scale grain heat-drying complexes | |
| CN204224470U (en) | A kind of system of a large amount of, safe utilization brown coal calcination of cement clinker | |
| JP2009079118A (en) | Carbide reserving and conveying device and method for it | |
| CN108344287B (en) | Energy-saving and environment-friendly large-scale grain drying complete device and drying method | |
| CN202547358U (en) | Tail gas utilization system for lime rotary kiln | |
| US6293208B1 (en) | Method of installation of supply of air of solid and pulverized fuel burner | |
| CN208735655U (en) | A kind of dry half direct-firing blower mill pulverized coal preparation system of list medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120425 |