CN104089296B - Integrate powder process storage powder for the rotary-type pulverized coal combustion system of powder and temperature controllable - Google Patents
Integrate powder process storage powder for the rotary-type pulverized coal combustion system of powder and temperature controllable Download PDFInfo
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- CN104089296B CN104089296B CN201410320096.XA CN201410320096A CN104089296B CN 104089296 B CN104089296 B CN 104089296B CN 201410320096 A CN201410320096 A CN 201410320096A CN 104089296 B CN104089296 B CN 104089296B
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Abstract
The present invention proposes a kind of powder process storage powder that integrates for the rotary-type pulverized coal combustion system of powder and temperature controllable, comprise powder-making machine, storage powder tank and burner, it is provided with little powder collector and big powder collector on the top of storage powder tank, machine supplying powder is established at the feed opening place of storage powder tank, blower fan two divided into by machine supplying powder, coaling machine is established at the hopper place of powder-making machine, blower fan one is established in powder-making machine bottom, powder-making machine and big powder collector, blower fan one and little powder collector, blower fan one and blower fan two, wind road it is equipped with between blower fan two and burner, the present invention is by electrical control system centralized Control, achieve powder process, Chu Fen, for powder, for wind, the integrated operation of burning, for industrial furnace and asphalt grain mixing equipment use pulverized coal combustion system to provide sound assurance, whole process carries out entirely in closed conduit, totally pollution-free, simple to operate, convenience and furnace temperature are controlled.
Description
Technical field
The present invention relates to pulverized coal combustion system, it is specifically related to a kind of powder process storage powder that integrates for the rotary-type pulverized coal combustion system of powder and temperature controllable.
Background technology
Shi Ge big coal country of China, coal resources cheapness is abundant, all trades and professions application widely. How can utilize on high-efficiency environment friendly ground, it is the content that each industry needs further investigation. At present, the like product used on industrial furnace and asphalt grain mixing equipment mainly contains two types: a class is that lump coal granularity being less than 25mm with coal-grinding and powder-spraying machine is worn into the coal dust about 90 orders and directly sprayed in burner and burn. This kind of advantage is that mill coal dusts and is integrated, on-the-spot powder process, burning, and whole system architecture is simple, is convenient to install. Shortcoming is that coal-grinding and powder-spraying machine output is limited, with regard to needs two even three Coal-disintegrating machines confession powder when the burner needing calorific value big uses, on burner, coal inlet is not easily arranged, and energy consumption is big, and wind-force is wayward, owing to rotating speed is fast, inner consumable accessory abrasion is too fast, maintenance is frequent, and output is limited, does not just rise to 5 tons, consumption coal per hour and has gone. Along with the continuous upgrading of burner, this kind has not provided sufficient coal dust for powder mode, can not meet the demand in market. In addition, owing to can not store up powder, once coal-grinding and powder-spraying machine has had fault, then whole system all to be stopped work to fix a breakdown, and impact is produced. Another class is that 100 order coal dusts made by lump coal mill granularity being less than 25mm with large-scale powder manufacturing apparatus, collection is got up, it is transported to storage powder tank place, it is transported in storage powder tank with the lift technique such as lift (when buying packed coal dust) or pumping equipment when powder (buy tank car coaling) again, and then with powder feeder unit, coal dust is blown into burner combustion by air-supply arrangement. This kind of advantage is that output increased is unrestricted, easily concentrates adjustment, flame quality height for powder for wind. Shortcoming is that powder process is separated with storage powder, and coal dust belongs to inflammable substance, dangerous in transport with the process stored, not environmentally. Storage powder tank has done little not reach service requirements, done greatly, and security measures is difficult to accomplish.At present; it is make storage tank with stainless steel abroad; welding requires extremely tight; internal weld seams requires do not have any burrs; inner blanketing with inert gas, it is intended that prevent coal dust from exploding, also need in addition to install the sfgd.s such as safety valve additional; construction costs is very high, and the storage powder tank of 100 tons is with regard to price 1,000,000 Renminbi nearly. At home, some user, in order to cost-saving, often uses the common tank substitute that general steel plate makes, existing report security incident occur.
Summary of the invention
For prior art Problems existing, technical problem to be solved by this invention how to enable to use pulverized coal combustion system to integrate powder process, Chu Fen, for powder, supply wind, burning on various industrial furnace and asphalt grain mixing equipment, thus realizes energy-conservation, safety, High-efficient Production.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of powder process storage powder that integrates is for the rotary-type pulverized coal combustion system of powder and temperature controllable, comprising powder-making machine, storage powder tank and burner, establish little powder collector and big powder collector respectively on the top of described storage powder tank; Machine supplying powder is established at the feed opening place of storage powder tank, being connected with Y-tube two under machine supplying powder, Y-tube two one end is connected by wind Lu Liuyu burner, and Y-tube two the other end is connected with blower fan two, blower fan two is established valve one and valve two, between valve one and valve two, is connected with Y-tube one; Establishing coaling machine at the hopper place of described powder-making machine, coal bunker is established on coaling machine top; Powder-making machine is connected by the big powder collector of wind Lu Yiyu, establishes blower fan one in powder-making machine bottom, and blower fan one is connected by the big powder collector of wind Lu Sanyu, and blower fan one is also connected by the little powder collector of wind Lu Eryu; Being connected with Y-tube three between blower fan one and wind road two, the other end of Y-tube three is connected by wind Lu Wuyu Y-tube one, establishes valve respectively at the mouth of pipe place of Y-tube three; Little powder collector is connected by wind Lu Siyu dust removal installation; Level gage up and down in the portfire of the analytical engine of coaling machine, machine supplying powder, powder-making machine, powder-making machine upper end, blower fan one, blower fan two, burner, burner, storage powder tank is by electrical control system centralized Control.
The burner hearth of described burner is for rotating burner hearth.
Hopper is established in the hood shell side of described powder-making machine, has established mill roller and the bull ring of the effect of rolling in powder-making machine.
Described coaling machine is feeding machine, conveyor or spiral feeder.
The unlatching door of the lower coal amount of control is established in described upper coal bunker bottom.
The present invention adopts the powder process storage powder that integrates designed by technique scheme to supply powder for the rotary-type pulverized coal combustion system of wind and temperature controllable, it is the upper coal of collection, powder process, Chu Fen, for powder, for wind, burning in the pulverized coal combustion system of one, whole process completes continuously in closed conduit and equipment. The coal dust (this powder-making machine also can as required at any time adjust coal powder size) of the present invention about scene has a powder-making machine that the lump coal being less than 25mm is pulverized into 100 orders, is stored in the storage powder tank of transition by wind power system by coal dust and stores. Owing to being scene powder process at any time, this storage powder tank does not need very big, coal dust with mill with, the coal dust amount of storage is few, and the storage time is short, and safety requirements is far below the requirement of great Chu powder tank, and safety coefficient increases greatly. And every day shut down before can storage powder in emptying storage powder tank, what avoid that coal dust standing storage causes gets damp, and hardens to block the phenomenon of storage powder tank feed opening. Whole mill coal storage powder process carries out in a closed system, environmental protection, convenience.Having under storage powder tank for powder air supply device, can adjust upper coal amount at any time by adjustment coaling machine rotating speed, upper coal is convenient, to control furnace temperature. Upper air quantity adjusts by valve, to obtain desirable flame. Burner hearth is for rotating burner hearth, and burning is reliable, efficiently not easily slagging scorification. Powder can be carried out sorting by the analytical engine on powder-making machine, and powder process granularity is adjustable, easy to control.
Accompanying drawing explanation
Fig. 1 represents the structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is integrated powder process storage powder and do concrete explanation for the structure of powder and the rotary-type pulverized coal combustion system of temperature controllable.
See Fig. 1, the present invention integrates powder process storage powder and comprises powder-making machine 5 for the structure of powder and the rotary-type pulverized coal combustion system of temperature controllable, storage powder tank 18 and burner 21, and the burner hearth of burner 21, for rotating burner hearth, guarantees that burning is reliable, efficiently not easily slagging scorification like this. The top of powder-making machine 5 is provided with analytical engine, lump coal mill is made coal dust by powder-making machine 5, coal powder size and output are controlled by adjusting the analytical engine rotating speed on powder-making machine 5 top, there is hopper the case side of powder-making machine 5, mill roller and bull ring is had in powder-making machine 5, rely on and roll between mill roller and bull ring, thus reach the object of comminuted coal block. Little powder collector 22 and big powder collector 23 is established respectively on the top of storage powder tank 18. Machine supplying powder 17 is established at the feed opening place of storage powder tank 18, machine supplying powder is connected with Y-tube 2 16 17 times, one end of Y-tube 2 16 is connected with burner 21 by wind road 6 20, the other end of Y-tube 2 16 is connected with blower fan 2 12, blower fan 2 12 is established valve 1 and valve 2 13, between valve 1 and valve 2 13, is connected with Y-tube 1. Establishing coaling machine 4 at the hopper place of powder-making machine 5, coaling machine 4 can be feeding machine, conveyor or spiral feeder, and coal bunker 3 is established on the top of coaling machine 4, and the unlatching door of the lower coal amount of control is established in the bottom of upper coal bunker 3. Powder-making machine 5 is connected with big powder collector 23 by wind road 1, establishes blower fan 1 in powder-making machine 5 bottom, and blower fan 1 is connected with big powder collector 23 by wind road 3 24, and blower fan 1 is also connected with little powder collector 22 by wind road 2 25. Y-tube 37 it is connected with between blower fan 1 and wind road 2 25, the other end of Y-tube 37 is connected with Y-tube 1, between Y-tube 37 and wind road 2 25, it is connected with valve 6, between Y-tube 37 and blower fan 1, it is connected with valve 8, between Y-tube 37 and wind road 5 11, be connected with valve 9. Little powder collector 22 is connected with fly-ash separator 2 by wind road 4 27. All electric original papers such as the coaling machine 4 of the present invention, machine supplying powder 17, powder-making machine 5, analytical engine, blower fan 1, blower fan 2 12, burner 21, the portfire 19 of burner, the level gage up and down of storage tank 18 are by electrical control system 1 centralized Control.
During work, with forklift, the lump coal being less than 25mm is loaded in upper coal bunker 3, under the bucket of upper coal bunker 3, has unlatching door can control lower coal amount. Lump coal is delivered into powder-making machine 5 through coaling machine 4, and the upper coal speed of coaling machine 4 can be controlled by adjustment motor tachometer gage (or frequency transformer) on electrical control system 1. Lump coal adds after in machine from the hopper of the case side of powder-making machine 5, relies on the mill roller in powder-making machine 5 and rolling between bull ring, thus reaches the object of comminuted coal block. Lump coal mill is made coal dust by powder-making machine 5, and coal powder size and output are controlled by adjusting the analytical engine rotating speed on powder-making machine 5 top.
After pulverized coal grinding, blowing afloat by blower fan 1, the analytical engine above powder-making machine 5 carries out sorting, and the pipeline flowing through wind road 1 with the wind that fineness conforms with specification enters big powder collector 23 and collects and enter storage powder tank 18 again, and excessively thick material enters again powder-making machine 5 and refaces.Whole system apoplexy circulates in wind road, the pipeline of the ultrafine powder that big powder collector 23 could not be collected through wind road 3 24 returns to blower fan 1 place and enters little powder collector 22 through the pipeline on wind road 2 25 again, ultrafine powder enters in storage powder tank 18 through collecting, the pipeline of air after purification through wind road 4 27 enters in fly-ash separator 2, and general coal powder size controls about 100 orders and can meet burner 21 to use. By this working cycle, the qualified coal dust that powder-making machine 5 is produced and ultrafine powder all enter into storage powder tank 18 and store in order to burner use, it does not have some waste, clean environmental protection.
When burner 21 is not lighted, powder-making machine 5 uses wind road described above when grinding preparation coal dust.
After burner 21 is lighted, grind powder while just can valve-off 6 Open valve 9 when burning, make the air containing ultrafine powder directly by the pipeline on wind road 5 11, converge through Y-tube 1 and the main coal dust stream under storage powder tank 18, enter burner 21 combustion together, now, desirable flame is obtained by adjustment valve 1 and valve 2 13. Due to on-the-spot powder process, Chu Fen; so the mode of production can flexible combination; due to be in advance mill system some coal dusts be stored in the tank of powder tank 18; the tank of storage powder tank 18 is provided with upper and lower level gage; burner 21 can determine whether open powder-making machine 5 after lighting as required; even if powder-making machine 5 has had fault, do not need maintenance of ceasing fire yet, production can not be affected.
Coal dust machine supplying powder 17(under tank in storage powder tank 18 can be feeding machine, it is possible to be spiral feeder) blanking on demand, discharge quantity is by the Frequency Converter Control on electrical control system 1, to control furnace temperature. Coal dust is transported to burner 21 combustion by valve 1 and valve 2 13 by blower fan 2 12. The adjustment of the air quantity come by the adjustment of valve 2 13 and wind road 5 11 can obtain desirable flame.
For lower than 100 object coal dusts, the coal dust in storage powder tank 18 delivers to the burner hearth combustion of burner 21 through powder-supply system, all can conveniently adjust for powder amount and air quantity. Need to by portfire 19 by diesel oil atomization during igniting, it is sprayed onto in burner 21 body of heater and lights, simultaneously for coal dust, in the hearth body of burner 21, coal dust can get final product fuel cut-off during spontaneous combustion, Fuel injection system is generally at 1-3 minute, after spontaneous combustion of pulverized coal, desirable flame and material temperature can be obtained by the air door air quantity adjusted on upper coal amount and air quantity and burner.
Present invention achieves powder process, Chu Fen, supply powder, supply the integrated operation of wind, burning, for industrial furnace and asphalt grain mixing equipment use pulverized coal combustion system to provide sound assurance, whole process carries out entirely in closed conduit, totally pollution-free, simple, convenient and furnace temperature is controlled.
Claims (5)
1. integrating powder process storage powder for a rotary-type pulverized coal combustion system for powder and temperature controllable, comprise powder-making machine, storage powder tank and burner, is characterized in that establishing little powder collector and big powder collector respectively on the top of described storage powder tank; Machine supplying powder is established at the feed opening place of storage powder tank, being connected with Y-tube two under machine supplying powder, Y-tube two one end is connected by wind Lu Liuyu burner, and Y-tube two the other end is connected with blower fan two, blower fan two is established valve one and valve two, between valve one and valve two, is connected with Y-tube one; Establishing coaling machine at the hopper place of described powder-making machine, coal bunker is established on coaling machine top; Powder-making machine is connected by the big powder collector of wind Lu Yiyu, establishes blower fan one in powder-making machine bottom, and blower fan one is connected by the big powder collector of wind Lu Sanyu, and blower fan one is also connected by the little powder collector of wind Lu Eryu; Being connected with Y-tube three between blower fan one and wind road two, the other end of Y-tube three is connected by wind Lu Wuyu Y-tube one, establishes valve respectively at the mouth of pipe place of Y-tube three; Little powder collector is connected by wind Lu Siyu dust removal installation; Level gage up and down in the portfire of the analytical engine of coaling machine, machine supplying powder, powder-making machine, powder-making machine upper end, blower fan one, blower fan two, burner, burner, storage powder tank is by electrical control system centralized Control.
2. the powder process storage powder that integrates according to claim 1 is for the rotary-type pulverized coal combustion system of powder and temperature controllable, it is characterized in that the burner hearth of described burner is for rotating burner hearth.
3. the powder process storage powder that integrates according to claim 1 is for the rotary-type pulverized coal combustion system of powder and temperature controllable, it is characterized in that hopper is established in the hood shell side of powder-making machine, has established mill roller and the bull ring of the effect of rolling in powder-making machine.
4. the powder process storage powder that integrates according to claim 1 is for the rotary-type pulverized coal combustion system of powder and temperature controllable, it is characterized in that described coaling machine is feeding machine, conveyor or spiral feeder.
5. the powder process storage powder that integrates according to claim 1 is for the rotary-type pulverized coal combustion system of powder and temperature controllable, it is characterized in that the unlatching door of the lower coal amount of control is established in described upper coal bunker bottom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320096.XA CN104089296B (en) | 2014-07-08 | 2014-07-08 | Integrate powder process storage powder for the rotary-type pulverized coal combustion system of powder and temperature controllable |
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| CN201410320096.XA CN104089296B (en) | 2014-07-08 | 2014-07-08 | Integrate powder process storage powder for the rotary-type pulverized coal combustion system of powder and temperature controllable |
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| CN106322364B (en) * | 2015-07-03 | 2019-03-08 | 邹人养 | A kind of layer of burner, kiln are mixed and burned system |
| CN107254334B (en) * | 2017-08-02 | 2021-02-02 | 魏厚建 | Solid-liquid phase change latent heat environment-friendly energy utilization method by using double compound fuels |
| CN108458358A (en) * | 2018-04-28 | 2018-08-28 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of coal base distribution boiler transmission ＆ distribution pulverized coal system |
| CN117184910B (en) * | 2023-08-29 | 2024-03-08 | 煤炭科学技术研究院有限公司 | Pulverized coal feeder and method for cleaning pulverized coal feeder |
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| US4184640A (en) * | 1978-05-05 | 1980-01-22 | Williams Robert M | Coal grinding apparatus for direct fired burners |
| CN1116547C (en) * | 2001-03-30 | 2003-07-30 | 王金 | Fuel powder producing and feeding combustion system |
| CN101392954A (en) * | 2008-10-31 | 2009-03-25 | 宗翠红 | Vertical hearth-rotating boiler |
| CN201339948Y (en) * | 2009-01-09 | 2009-11-04 | 宋军保 | Pulverized coal preparation system |
| CN204026717U (en) * | 2014-07-08 | 2014-12-17 | 赵怀竹 | Integrate powder process storage powder and supply powder and the rotary-type pulverized coal combustion system of controllable temperature |
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