CN2708122Y - Chain grate for preventing coal bucket from being fired by ignition wire shifting forward - Google Patents
Chain grate for preventing coal bucket from being fired by ignition wire shifting forward Download PDFInfo
- Publication number
- CN2708122Y CN2708122Y CN 200420018507 CN200420018507U CN2708122Y CN 2708122 Y CN2708122 Y CN 2708122Y CN 200420018507 CN200420018507 CN 200420018507 CN 200420018507 U CN200420018507 U CN 200420018507U CN 2708122 Y CN2708122 Y CN 2708122Y
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- air
- wind chamber
- wind
- air outlets
- coal
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Abstract
The utility model relates to a chain grate for preventing a coal bucket from being fired by ignition wire shifting forward, comprising a coal bucket 1, a driving wheel 2, a wind chamber 3, a cast iron brick 4, other wind chamber 5, air outlets 6, a driven wheel 7, a screw cap 8, a press code 9, a grate beam 10, and an adjusting aerofoil 11. The sum of the section areas of the air outlets of the wind chamber 3 is less than the sum of the section areas of the air outlets of the other wind chamber 5. The air outlets 6 of the wind chamber 3 are two, and the air outlets 6 of the other wind chamber 5 are four. Each wind chamber of the chain grate for preventing a coal bucket from being fired by ignition wire shifting forward of the utility model is composed of a wind chamber plate 12, a wind gate slideway 13, a wind gate blocking plate 14, a wind gate linking rod 15, a draw rod handle 16, and a wind supply collecting box 17. The air outlets 6 of the wind chamber 3 are two, and the air outlets 6 of the other wind chamber 5 are four. The chain grate for preventing a coal bucket from being fired by ignition wire shifting forward of the utility model eliminates the phenomenon that a coal burning fire wire shifts forward and burns the coal bucket, thereby, the service life of the chain grate and the coal bucket is increased, and the economic loss of users using the chain grate is reduced.
Description
Technical field
The utility model relates to boiler combustion equipment, especially a kind of traveling-grate stoker that prevents to fire live wire reach burning coal bunker.
Background technology
Just all design routinely at present at the chain fire-gate air feed system of running a large amount of boiler combustion equipments, each air compartment all is average air feed, wind channel advance the stokehold establish control air door carry out the control of wind supply quantity size, so that reach the reasonable coupling of Coal-fired capacity and wind supply quantity, coal fully burnt.
Operation conditions according to over thousands of of our factory production and sales series traveling-grate stoker, particularly finding in the service after sale, have and exist coal more than 45% and on burning bed, fire the abnormal reach of live wire and burn coal bunker, that have even coal flashboard and coal bunker crumpled, the serious boiler that makes can not continue to have moved, and economic loss is very serious.
Exist coal-fired live wire reach at the boiler traveling-grate stoker, the problem of burning coal bunker, we investigate northeast, North China, northwest, and the investigation situation is as follows:
Investigate 119 of traveling-grate stokers altogether, what wherein have the reach of malcombustion live wire has 34, and what have the burning coal bunker has 19, and what combustion problem was arranged accounts for 44.3%.
According to investigation, investigate, what traveling-grate stoker can be existed can not normal combustion, live wire reach and the reason of burning problems such as coal bunker are summarized as follows:
(1) Fig. 1 is coal confession air capacity curve map during normal combustion on traveling-grate stoker, and visible coal carries out normal combustion on fire grate have several different phases.Different combustion phases, required air capacity of carrying out oxidation differs widely.As the coal above the fire grate of first air compartment is the warm-up phase that is in burning, is that coal enters absorption heat in the burner hearth, makes the stage of water evaporates, does not need a large amount of air supplies to carry out oxidation.The wind supply quantity of chain fire-gate five air compartments of the concrete expression of Fig. 1 is under the normal combustion situation, and institute's required airflow should be supplied with by the size of following corresponding wind supply quantity; Otherwise coal just can not fully burn on siege.If an air compartment wind supply quantity reduces wind supply quantity not according to shown in the curve map, the live wire reach will occur firing and burn the coal bunker phenomenon.
The conventional chains fire grate is designed to each air compartment even distributing wind, regulates air quantity, blast by the size of each air compartment import air door.The unreasonable defectiveness of this traditional approach.Because the general industrial boiler is when normal combustion; Chain fire-gate a plurality of air compartment is in the several different combustion phases of coal combustion, if also according to average air supply mode, the average supply than big air capacity will certainly make the reach of burning of coal live wire. and the fire box temperature of air compartment top increases, and the phenomenon that coal bunker is burnt out occurs.
(2) chain-grate boiler stoker personnel are ignorant of business, due to maloperation or the irresponsibility etc.A lot of not through training or through pro forma training, do not grasp the curve law of the different wind supply quantities of four combustion phases of traveling-grate stoker at all, thereby the just impossible aperture of grasping different air compartment wind supply quantity control valves, this just is bound to make the wind supply quantity of an air compartment too big, increased air compartment top burning of coal speed, make the reach of coal combustion live wire, produce the phenomenon of burning coal bunker.Irresponsibility or dislike trouble and do not remove careful and responsible damper reduces wind supply quantity and also causes the phenomenon of burning coal bunker.
(3) problem of burning coal bunker before the traveling-grate stoker combustion live wire to be thoroughly solved, all the same this unreasonable problem of fire grate wind supply quantity must be solved.
Summary of the invention
The purpose of this utility model is that the air feed system at the conventional chains fire grate all is to design routinely, each air compartment all is provided with the air door of equal number, wind channel advance the stokehold establish control air door carry out the control of wind supply quantity size, but because the stoker personnel are ignorant of business or irresponsibility, cause to produce the problem that coal bunker is burnt in the reach of combustion live wire, a kind of traveling-grate stoker that coal bunker is burnt in the live wire reach that prevents to fire is provided.
The traveling-grate stoker that fires live wire reach burning coal bunker that prevents described in the utility model comprises coal bunker 1, driving wheel 2. 1 air compartments 3, cast iron brick 4, other air compartments 5, air outlet 6, driven pulley 7, nut 8, presses sign indicating number 9, fire grate beam 10, air regulating board 11.The sectional area sum of one air compartment, 3 air outlets is less than the sectional area sum of other air compartment 5 air outlets.
The air outlet of one air compartment 3 is two.The air outlet of other air compartments 5 is 4.
Analyze after deliberation, reducing by an air compartment wind supply quantity is the key technology measure, and therefore, the utility model is revised the sectional area of the wind channel of an air compartment, and air supply hole is reduced to two by original four.This will be with regard to fundamentally having solved the big problem of an air compartment wind supply quantity, even the fireman is untrained, is ignorant of and can not regulates coupling one air compartment air quantity, or the fireman do not remove conscientious damper, the abnormality that coal bunker is burnt in the live wire reach also can not occur firing.
Practice shows, owing to revise an air compartment, reduces air supply hole and reduces wind supply quantity, the phenomenon that makes traveling-grate stoker eliminate the reach of coal combustion live wire and burn coal bunker.Thereby prolonged the service life of traveling-grate stoker and coal bunker, reduced use traveling-grate stoker economic loss of user.
Description of drawings
Fig. 1 is the normal wind supply quantity curve map of each air compartment of traveling-grate stoker.
Fig. 2 is a traveling-grate stoker figure elevation.
Fig. 3 is chain fire-gate plane.
Fig. 4 is the figure that is provided with of the utility model traveling-grate stoker one air compartment air door.
Fig. 5 is the figure that is provided with of other air compartment air doors of traveling-grate stoker.
The specific embodiment
As Fig. 2-shown in Figure 5, described in the utility modelly prevent to fire the traveling-grate stoker that the live wire reach burns coal bunker and comprise by coal bunker 1, driving wheel 2, an air compartment 3, cast iron brick 4, other air compartments 5, air outlet 6, driven pulley 7, nut 8, press sign indicating number 9, fire grate beam 10, air regulating board 11.The sectional area sum of one air compartment, 3 air outlets is less than the sectional area sum of other air compartment 5 air outlets.The air outlet 6 of one air compartment 3 is two.The air outlet 6 of other air compartments 5 is 4.
As Fig. 4, shown in Figure 5, each air compartment of the utility model traveling-grate stoker by air compartment plate 12, air door slideway 13, damper pull 14, throttle linkage 15, pull bar handle 16 and air feed header 17 constitute.
By Fig. 4, Fig. 5 as seen, other air compartment air feed air doors are compared with the air door of an air compartment, obviously are significantly increased on quantity, sectional area, wind supply quantity.
After preventing to fire the concrete enforcement of live wire reach burning coal bunker traveling-grate stoker, by user's feedback, the operation of all burning is normal, and none has the phenomenon of firing live wire reach burning coal bunker to take place.Thereby saved a large amount of maintenance costs, guaranteed the normal operation of boiler, made coal can reach abundant burning, produced the huge social economic benefit.
Claims (2)
1. one kind prevents to fire the traveling-grate stoker that coal bunker is burnt in the live wire reach, comprising coal bunker, driving wheel. an air compartment, cast iron brick, other air compartments, air outlet, driven pulley, nut, pressure sign indicating number, fire grate beam, air regulating board is characterized in that: the sectional area sum of an air compartment air outlet is less than the sectional area sum of other air compartment air outlets.
2. fire the traveling-grate stoker that coal bunker is burnt in the live wire reach by described the preventing of claim 1, it is characterized in that: the air outlet of an air compartment is two, and the air outlet of other air compartments is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018507 CN2708122Y (en) | 2004-02-26 | 2004-02-26 | Chain grate for preventing coal bucket from being fired by ignition wire shifting forward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018507 CN2708122Y (en) | 2004-02-26 | 2004-02-26 | Chain grate for preventing coal bucket from being fired by ignition wire shifting forward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708122Y true CN2708122Y (en) | 2005-07-06 |
Family
ID=34848933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420018507 Expired - Fee Related CN2708122Y (en) | 2004-02-26 | 2004-02-26 | Chain grate for preventing coal bucket from being fired by ignition wire shifting forward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708122Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666504B (en) * | 2009-09-30 | 2011-08-31 | 瓦房店市永宁机械厂 | Turnover plate type segment wind adjustment chain grate of wind storehouse |
-
2004
- 2004-02-26 CN CN 200420018507 patent/CN2708122Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666504B (en) * | 2009-09-30 | 2011-08-31 | 瓦房店市永宁机械厂 | Turnover plate type segment wind adjustment chain grate of wind storehouse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |