CN2173381Y - Push feeding type semi-mechanical coal combustion kiln - Google Patents
Push feeding type semi-mechanical coal combustion kiln Download PDFInfo
- Publication number
- CN2173381Y CN2173381Y CN 93241801 CN93241801U CN2173381Y CN 2173381 Y CN2173381 Y CN 2173381Y CN 93241801 CN93241801 CN 93241801 CN 93241801 U CN93241801 U CN 93241801U CN 2173381 Y CN2173381 Y CN 2173381Y
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- China
- Prior art keywords
- coal
- arch
- chimney arch
- high temperature
- preheating
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- Expired - Fee Related
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Abstract
The utility model discloses a novel coal combustion kiln, particularly a push feeding type semi-mechanical coal combustion kiln which mainly comprises an arch, a hearth and a fire grate, wherein, the arch is composed of a low temperature arch and a high temperature arch, the hearth is divided into a high temperature hearth and a preheating dry distillation hearth. The preheating dry distillation hearth is composed of the low temperature arch, a preheating plate, a dry distillation plate and a step grate. The high temperature hearth is composed of the high temperature arch, a step grate and a horizontal fixed grate. The coal combustion kiln solves the problem that smoke is created in cycle when too much coal is fed in a hand kiln. Coal can be sufficiently combusted, smoke and dust can be eliminated, and energy can be saved. The utility model is particularly suitable for enamel kilns of zinc coating kilns, sodium silicate kilns and glass kilns.
Description
The utility model relates to a kind of coal-fired furnace.
Existing coal-fired furnace is the handwarmer of horizontal fixed fire grate or ladder fixed grate normally, adopts gravity-flow ventilation.Throw coal and slag tap by hand, this manual coal-fired furnace, coal seam thickness is unfixing in the burner hearth, formed the cyclically-varying of burning, the thickest in the time of particularly above new coal is put into coal-fired layer owing to coal-fired layer, therefore need high temperature and sufficient oxygen to supply with fully burning, but this moment is owing to be in the fire door coal state of opening, a large amount of cold airs enter burner hearth from fire door, make the fire box temperature sharp fall, destroy required hot environment, hindered the fire grate bottom air with the adding of stylish coal and entered the combustion zone, the local anoxic of burner hearth occurred, combustion conditions is worsened, particularly the volatile matter of separating out in a large number in the coal is easily fissioned into superfine carbon black under the high temperature anoxic conditions, forms dense black smoke and enter atmosphere with flue gas, not only contaminated environment but also waste energy.
Along with burning of coal, squeeze, the air capacity that burning needs reduces relatively, but along with squeeze, the air capacity that enters burner hearth under the fire grate increases on the contrary gradually, and it is too much oxygen supply to occur, and makes the furnace temperature part on the low side, the influence burning can cause incomplete combustion equally, so that waste energy.
The purpose of this utility model is to provide a kind of coal seam that can make in coal-fired process fully to burn to solve half mechanical coal-fired furnace of smoke contamination for the deficiency that solves above technology.
In order to achieve the above object, the pushing feeding type half mechanical coal-fired furnace that the utility model is designed, comprise chimney arch, burner hearth and fire grate, wherein chimney arch is made up of low temperature chimney arch and high temperature chimney arch, and corresponding formation preheating destructive distillation burner hearth and high-temperature burner hearth, for making the fine purpose that plays the preheating destructive distillation of preheating destructive distillation burner hearth energy, described preheating destructive distillation burner hearth is by the low temperature chimney arch, preheating table, destructive distillation plate and ladder fire grate constitute, its high-temperature burner hearth is by the high temperature chimney arch, ladder fire grate and horizontal fixed fire grate constitute, preheating table is arranged on low temperature chimney arch mouth and coal bunker bottom position, the destructive distillation plate is located between preheating table and the ladder fire grate, connects the horizontal fixed fire grate behind the ladder fire grate.
In order to guarantee the constant of in coal or coal-fired process fire box temperature and oxygen-supplying amount, coal adds in the burner hearth by coal bunker, particularly by being arranged on mainly raising device by pushing away of forming of stationary links, movable rod and coal-pushing plate and will regularly be pushed in destructive distillation plate or the ladder fire grate by the coal that coal bunker is added on the preheating table on preheating table and the destructive distillation plate.
In order to control the air flow direction of coal fuel gas and air in combustion process, also be provided with the water pipe arch in the buttress between low temperature chimney arch and high temperature chimney arch.
Pushing feeding type described in the utility model half mechanical coal-fired furnace, because coal is raised device and is evenly sent into from coal bunker bottom and carry out preheating in the chimney arch by pushing away, destructive distillation, ignite, burning, the volatile matter of coal is fully burnt, then utilize coal-fired deadweight to glide again along the ladder fire grate, under suitable secondary wind condition, make fixed carbon finish burning, thereby solved the problem that makes entering of a large amount of cold airs cause furnace temperature to fall sharply because of the unlatching fire door when handwarmer is thrown coal, it is many and the combustion conditions cyclically-varying takes place to have solved coal feeding amount of handwarmer, the problem of cap black smoke periodically particularly, both eliminated flue dust, energy savings again, this pushing feeding type half mechanical coal-fired furnace technology is applicable to height, in, the construction of low temperature kiln, and the transformation of various manual furnace (kiln)s, be particularly useful for the galvanizing kiln, the sodium silicate kiln, the frit kiln, pottery, the enamel firing freezing of a furnace, the construction and upgrading of extraordinary kiln such as annealing furnace.
Accompanying drawing is the structural representation of pushing feeding type half mechanical coal-fired furnace.
The utility model is further described by embodiment below in conjunction with accompanying drawing:
As shown in the figure, the described pushing feeding type of present embodiment half mechanical coal-fired furnace mainly is made up of low temperature chimney arch 1, high temperature chimney arch 2, preheating table 3, destructive distillation plate 4, coal-pushing plate 5, stationary links 6, movable rod 7, ladder fire grate 8, horizontal fixed fire grate 9, coal bunker 10, and wherein low temperature chimney arch 1, preheating table 3, destructive distillation plate 4, ladder fire grate 8 form preheating destructive distillation burner hearth district 11; High temperature chimney arch 2, ladder fire grate 8, horizontal fixed fire grate 9 form high-temperature burner hearth district 12; Coal-pushing plate 5, stationary links 6, movable rod 7 constitute to push away raises device 13 and will get off to place the coal on the preheating table to push on the destructive distillation plate from coal bunker 10 by motor 14, simultaneously the coal on the destructive distillation plate is pushed on the ladder fire grate, make coal preheating, destructive distillation in preheating destructive distillation burner hearth district 11, ignite and burn, coal-fired by conducting oneself with dignity along the downslide of ladder fire grate, in burning downslide process, enter the horizontal fixed fire grate.
Motor 14 can be controlled by timing controlled and push away the coal amount that pushes away and the coal time of raising device 13, coal in the coal bunker 10 adds with artificial, also can combine and carry out machinery and add, push away at this and raise device 13 and also can directly coal be sent in the burner hearth without motor 14 is used as power with artificial promotion with other mechanical device.
Present embodiment described half mechanical pushing feeding type burning kiln becomes chamber design in the combined type burner hearth of preheating destructive distillation burner hearth and high-temperature burner hearth; The cold coal of handwarmer is directly entered burner hearth burning becoming mechanically-propelled preheating zone pre-heating temperature elevation, enter dry distillation area again and continue the intensification destructive distillation, enter the burning of high-temperature burner hearth district at last, replace former handwarmer need open and fire door by coal bunker and coal-pushing plate, thereby make coal in burner hearth, remain little negative-pressure firing, guarantee the steady periodically problem of over-emitting black exhaust of handwarmer that solved of combustion conditions, saved the energy.
Claims (9)
1, a kind of coal-fired furnace, it comprises chimney arch, burner hearth and fire grate, it is characterized in that described chimney arch is made up of low temperature chimney arch and high temperature chimney arch, and corresponding formation preheating destructive distillation burner hearth and high-temperature burner hearth.
2, coal-fired furnace according to claim 1 is characterized in that preheating destructive distillation burner hearth is made of low temperature chimney arch, preheating table, destructive distillation plate and ladder fire grate; High-temperature burner hearth is made of high temperature chimney arch, ladder fire grate and horizontal fixed fire grate.
3, coal-fired furnace according to claim 1 and 2 is characterized in that preheating table is arranged on low temperature chimney arch mouth and coal bunker bottom position, and the destructive distillation plate is located between preheating table and the ladder fire grate.
4, coal-fired furnace according to claim 1 and 2 is characterized in that also being provided with on preheating table and destructive distillation plate mainly by pushing away of forming of stationary links, movable rod and coal-pushing plate and raises device.
5, coal-fired furnace according to claim 3 is characterized in that also being provided with the coal pusher of mainly being made up of stationary links, movable rod and coal-pushing plate on preheating table and destructive distillation plate.
6, coal-fired furnace according to claim 1 and 2 is characterized in that being provided with in the baking wall between low temperature chimney arch and high temperature chimney arch the water pipe arch.
7, coal-fired furnace according to claim 3 is characterized in that being provided with in the buttress between low temperature chimney arch and high temperature chimney arch the water pipe arch.
8, coal-fired furnace according to claim 4 is characterized in that being provided with in the buttress between low temperature chimney arch and high temperature chimney arch the water pipe arch.
9, coal-fired furnace according to claim 5 is characterized in that being provided with in the buttress between low temperature chimney arch and high temperature chimney arch the water pipe arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241801 CN2173381Y (en) | 1993-10-08 | 1993-10-08 | Push feeding type semi-mechanical coal combustion kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241801 CN2173381Y (en) | 1993-10-08 | 1993-10-08 | Push feeding type semi-mechanical coal combustion kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2173381Y true CN2173381Y (en) | 1994-08-03 |
Family
ID=33815677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241801 Expired - Fee Related CN2173381Y (en) | 1993-10-08 | 1993-10-08 | Push feeding type semi-mechanical coal combustion kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2173381Y (en) |
-
1993
- 1993-10-08 CN CN 93241801 patent/CN2173381Y/en not_active Expired - Fee Related
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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 |