CN2643176Y - Smokeless coal-burning apparatus - Google Patents
Smokeless coal-burning apparatus Download PDFInfo
- Publication number
- CN2643176Y CN2643176Y CN 200320100218 CN200320100218U CN2643176Y CN 2643176 Y CN2643176 Y CN 2643176Y CN 200320100218 CN200320100218 CN 200320100218 CN 200320100218 U CN200320100218 U CN 200320100218U CN 2643176 Y CN2643176 Y CN 2643176Y
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- coal
- gas
- phase combustion
- smokeless coal
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fumeless coal burner, which comprises a burner body including a hearth and an ash chamber and is characterized in that a partition is set in the hearth to separate the hearth into a solid-phase combustion chamber and a gas-phase combustion chamber, the solid-phase combustion chamber has an enclosed top and a bottom communicating with the gas-phase combustion chamber, a coke oven gas channel, the bottom of which is communicated with the ash chamber, is arranged in the solid-gas combustion chamber, a bell made of fire-retardant material is arranged in the middle of the gas-phase combustion chamber. The utility model separates the traditional coal hearth into two combustion chambers that are communicated, the process of coal burning is divided into two combustion phases, the solid-phase combustion phase and the gas-phase combustion phase, thereby ensuring the combustible gas is burned thoroughly, and efficiently reducing pollution of the exhaust fume to the environment. The utility model is applicable to various small coal boilers (heating furnace, tea bath furnace, etc. which has a thermal power less than 2.8MW) and household coal furnaces.
Description
Technical field
The utility model relates to a kind of coal-burning installation, particularly about a kind of smokeless coal-burning installation.
Background technology
According to the theory of combustion of coal as can be known, the main component that constitutes the black smoke dust is small carbon black pellet, and when new coal adds fashionablely, the volatile matter in the coal (mainly is C
mH
n) can be separated out by Fast Heating, at this moment, because furnace temperature lower (new coal has reduced furnace temperature), anoxic, burning are insufficient, the volatile matter of separating out has just formed dense black smoke, and environment is polluted.
Summary of the invention
At the problems referred to above, it is abundant that the purpose of this utility model provides a kind of fuel combustion, can effectively reduce the smokeless coal-burning installation of environmental pollution.
For achieving the above object, the utility model is taked following technical scheme: a kind of smokeless coal-burning installation, it comprise have burner hearth, the burner body of grey chamber, it is characterized in that: in described burner hearth, be provided with one described burner hearth is divided into the partition of solid phase combustion chamber and gas phase combustion chamber, described solid phase top of combustion chamber sealing, the bottom communicates with described gas-phase combustion chamber, be provided with the oven gas passage that a bottom is communicated with described grey chamber in the described solid phase combustion chamber, described gas-phase combustion chamber middle part is provided with the convergent that a usefulness refractory material makes and connects the flaring mouth.
Described convergent connects the tapered portion of flaring mouth to lopsidedness, and the shape that upwards rises in the shape of a spiral.
The shape of cross section of described burner hearth is square.
The shape of cross section of described burner hearth is rounded.
The shape of cross section ovalize of described burner hearth.
Described partition is made by refractory material.
Described partition is made up of the heating water jacket.
The utility model is owing to take above design, and it has the following advantages: 1, the utility model has become the burning of coal process change two stage combustion process of solid-gas phase separation because traditional coal-fired furnace cavity is separated into two combustion chambers that the bottom communicates.In the solid phase combustion chamber, be provided with simultaneously an oven gas passage, therefore, the black smoke that the overwhelming majority contains combustible can advance ash entrance chamber by the oven gas passage from the solid phase combustion chamber, and with after the new wind facies of grey chamber air inlet mixes, and heats through coal-fired floor to enter the gas-phase combustion chamber again; And it is indoor in gas-phase combustion, because the temperature height, sufficient completing combustion takes place with airborne oxygen in unburnt combustible in strong backflow, can reach the purpose of smoke abatement and dust control thus, after tested, use boiler of the present utility model can reach the smoke evacuation dustiness be lower than 100mg/Nm
3Lingemann blackness is less than 1 grade level.2, the utility model is owing to separate with water jacket or refractory material between two combustion chambers, and make a convergent in the gas-phase combustion chamber with special-shaped refractory material and connect the flaring mouth, it is hereby ensured that the gas-phase combustion chamber is in " thermal insulation " state in combustion process, ensure that temperature wherein reaches about 1000 ℃, particularly convergent connects the special planform of flaring mouth employing, air-flow is formed reflux, further ensured the sufficient mixed combustion of fuel gas.The utility model can be widely used in small scall coal-fired boiler (thermal power is less than the heating stove of 2.8MW, tea-bath furnace etc.), burners such as residential coal combustion stove, and suitable coal is bituminous coal, anthracite of noncoking etc.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the cross-sectional schematic of overlooking of Fig. 1
The specific embodiment
The utility model can be various small scall coal-fired boilers, residential coal combustion stove etc., it comprises burner main bodys such as body of heater shell, burner hearth, grey chamber, flue, in bodies of heater such as heating stove, tea-bath furnace, can also comprise water jacket, water tank etc., the utility model difference from prior art mainly is the improvement for burner hearth, event only is described in detail the improvement of parts such as burner hearth below, omits the description for the burner remainder.
As shown in Figure 1 and Figure 2, burner hearth 1 of the present utility model can be square, also can be circular, can also be oval or other shape.The middle part of burner hearth 1 is provided with one burner hearth 1 is divided into two-part partition 2, cuts off a side end sealing of 2, as solid phase combustion chamber 3, cuts off 2 opposite side as gas-phase combustion chamber 4, and solid phase combustion chamber 3 communicates with the bottom of gas-phase combustion chamber 4.Be provided with an oven gas passage 5 in the solid phase combustion chamber 3, oven gas passage 5 tops are communicated with the top of solid phase combustion chamber 3, and the bottom of oven gas passage 5 is communicated with grey chamber 6.4 middle parts, gas-phase combustion chamber are provided with the convergent that the special-shaped refractory material of a usefulness makes and connect flaring mouth 7, and this convergent connects the tapered portion 71 of flaring mouth 7 to lopsidedness, and the shape that upwards rises in the shape of a spiral.
From said structure as can be seen, when when fire door 8 adds new coal, the branch that evaporates in the coal promptly flows in solid phase combustion chamber 3, because the top seal of solid phase combustion chamber 3, flue gas has only two paths, and one is to enter gas-phase combustion chamber 4 from the coal seam, and another is to advance ash entrance chamber 6 from oven gas passage 5, and this passage resistance is little, and therefore most of flue gas will advance ash entrance chamber 6 from oven gas passage 5.Advance the flue gas of ash entrance chamber 6 and mix, be inhaled into gas-phase combustion chamber 4 by coal seam more shallow on the fire grate 11 with the fresh air that air inlet 10 on 6 fire doors 9 of grey chamber enters.In gas-phase combustion chamber 4, because convergent connects the effect of flaring mouth 7, flue gas forms eddy current, and tilt and the effect of the tapered portion 71 of the shape that rises in the shape of a spiral under rotate, prolong the time of staying, temperature sharply rises, volatile matter in the flue gas is fully burnt, the depressurization that then connects the flaring part of flaring mouth 7 again by convergent, make the dust sedimentation in the flue gas, pollutant in the flue gas that the row of making (enters heat exchange pipe or water jacket or chimney etc.) upward reduces greatly, thereby has solved the basic reason of burner over-emitting black exhaust effectively, has reached to reduce the purpose that fume emission pollutes environment.
Partition 2 of the present utility model can be made by refractory material, also can be made up of the heating water jacket, can also be made by alternate manner.Oven gas passage 5 of the present utility model can adopt steel plate to be welded into rectangular tube, round tube, triangle tube etc.The shape of the convergent flaring mouth 7 in the utility model gas-phase combustion chamber 4 and size also can change according to the size of combustion power.
Claims (10)
1, a kind of smokeless coal-burning installation, it comprise have burner hearth, the burner body of grey chamber, it is characterized in that: in described burner hearth, be provided with one described burner hearth is divided into the partition of solid phase combustion chamber and gas phase combustion chamber, described solid phase top of combustion chamber sealing, the bottom communicates with described gas-phase combustion chamber, be provided with the oven gas passage that a bottom is communicated with described grey chamber in the described solid phase combustion chamber, described gas-phase combustion chamber middle part is provided with the convergent that a usefulness refractory material makes and connects the flaring mouth.
2, smokeless coal-burning installation as claimed in claim 1 is characterized in that: described convergent connects the tapered portion of flaring mouth to lopsidedness, and the shape that upwards rises in the shape of a spiral.
3, smokeless coal-burning installation as claimed in claim 1, it is characterized in that: the shape of cross section of described burner hearth is square.
4, smokeless coal-burning installation as claimed in claim 1, it is characterized in that: the shape of cross section of described burner hearth is rounded.
5, smokeless coal-burning installation as claimed in claim 1 is characterized in that: the shape of cross section ovalize of described burner hearth.
6, as claim 1 or 2 or 3 or 4 or 5 described smokeless coal-burning installations, it is characterized in that: described partition is made by refractory material.
7, as claim 1 or 2 or 3 or 4 or 5 described smokeless coal-burning installations, it is characterized in that: described partition is made up of the heating water jacket.
8, as claim 1 or 2 or 3 or 4 or 5 described smokeless coal-burning installations, it is characterized in that: described oven gas passage is a kind of in the square tube, pipe, triangle tube of steel plate welding.
9, smokeless coal-burning installation as claimed in claim 6 is characterized in that: described oven gas passage is a kind of in the square tube, pipe, triangle tube of steel plate welding.
10, smokeless coal-burning installation as claimed in claim 7 is characterized in that: described oven gas passage is a kind of in the square tube, pipe, triangle tube of steel plate welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100218 CN2643176Y (en) | 2003-10-10 | 2003-10-10 | Smokeless coal-burning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100218 CN2643176Y (en) | 2003-10-10 | 2003-10-10 | Smokeless coal-burning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643176Y true CN2643176Y (en) | 2004-09-22 |
Family
ID=34304878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100218 Expired - Fee Related CN2643176Y (en) | 2003-10-10 | 2003-10-10 | Smokeless coal-burning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643176Y (en) |
-
2003
- 2003-10-10 CN CN 200320100218 patent/CN2643176Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040922 Termination date: 20091110 |