CN2076199U - High-concentration water-coal slurry burner - Google Patents
High-concentration water-coal slurry burner Download PDFInfo
- Publication number
- CN2076199U CN2076199U CN 90221662 CN90221662U CN2076199U CN 2076199 U CN2076199 U CN 2076199U CN 90221662 CN90221662 CN 90221662 CN 90221662 U CN90221662 U CN 90221662U CN 2076199 U CN2076199 U CN 2076199U
- Authority
- CN
- China
- Prior art keywords
- pipe
- swirl
- atomizer
- interior pipe
- coal slurry
- 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.)
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Abstract
The utility model relates to a high-concentration water-coal slurry burner, which comprises a tubular atomizer and an air register which is approximate cylinder, and adopts a Y-shaped semi-inner mixing spray head and an axial adjustable impeller structure. The utility model uses the compressed air or the steam as the atomizing medium, uses the low-pressure air as the combustion supporting wind, and the water-coal slurry can realize stable and high efficiency combustion. The high-concentration water-coal slurry burner has the advantages of simple and reasonable structure, easy arrangement and operation, great adjusting ratio, low gas consumption rate, good combustion stability, high efficiency and low dirty discharge index. The utility model can be widely used for various industrial furnaces and other heat engineering devices for the industry, such as the metallurgy, the chemical engineering, the ceramic, the construction material, the machinery, etc.
Description
Technical field of the present utility model belongs to combustion apparatus.
High-concentration coal-water slurry is that a kind of coal dust weight accounts for 65-70%, and water content is 30-35%, and a small amount of chemical addition agent is formed pulpous state fuel.This New-type fuel can partly replace heavy oil and other coal fuel, and be widely used in various industrial furnaces, Industrial Boiler and station boiler, some developed countries in the world at present, burning water-coal-slurry on fuel oil equipment, mainly at large scale industry boiler and station boiler, the burning capacity of burner is all more than 500kg/h, its nozzle structure is circular seam type or porous type (1), its air distribution mode is used classification (two-stage or three grades) air distribution more, therefore, the complex structure of burner, bulky, can't be applied to generally require the industrial furnace of dispersed supply of heating.The water coal slurry burner of domestic-developed, mainly contain Zhejiang University's low pressure spiral-flow type (2) and Anshan heat energy have give the combustion chamber water coal slurry burner (3).The former outstanding shortcoming is that the shower nozzle wearing and tearing are inhomogeneous, and wearing and tearing are arranged slightly, and atomizing effect worsens immediately, and the latter mainly is that to give the indoor slagging scorification of combustion serious, is difficult to move steadily in the long term.
The purpose of this utility model is primarily aimed at water coal slurry burner commonly used at present, burning capacity is bigger than normal, complex structure, easily slagging scorification, shortcoming such as be difficult for long-term stable operation, manufacture and design the high-concentration coal-water slurry burner, its burning capacity is 100-500kg/h, and burner structure comprises atomizer and air register, the atomizer shower nozzle is straight-through, the half interior y-type structure that mixes of single hole, air register is the single-stage air distributing type, and the swirl-flow devices of atomizer and air register can be regulated its axial distance.Under nothing is given chamber conditions, in industrial furnace, can directly spray combusting coal water slurry.This burner simple in structure is easy to make, and adjustable range is big, and pipeline is unimpeded, and atomization quality is good.
The utility model comprises that the center is an atomizer, and overcoat is an air register, and atomizer places the interior pipe of air register, regulates its axial location by mobile atomizer.
Atomizer structure, comprise the single hole straight way, mix Y type shower nozzle (1) in half, interior pipe (2), outer tube (3), sealing nut (4) is referring to figure (1), interior pipe transporting water coal slurry in the annular channel between interior pipe and outer tube, is carried atomizing medium, the outlet of atomizing medium carrier pipe is connected with interior pipe outlet section, form the mixer of atomizing medium and water-coal-slurry, it is sections of atomization that atomizer is exported to burner outlet, diameter of inner pipe 0.003-0.012M, the diameter of pipe was 0.001-0.005M in atomizing medium fed, and sections of atomization length is 0.005-0.015M.
Air register is the single stage type structure, comprise interior pipe (8), shell (7), swirl-flow devices (5), adjusting screw(rod) and nut, screw rod is connected with swirl-flow devices, and can move axially (6) along interior pipe (8), can regulate the axial distance of swirl-flow devices, regulate the section ratio of eddy flow pipeline and direct current pipeline, referring to figure (2).
The utility model atomizer shower nozzle mixer, the center line angle of cut of (two) ingate of atomizing medium and interior pipe connected pipe is 30-60 °.Atomizer shower nozzle (1) and outer tube (3) are connected and sealing by sealing nut, and the distance that can regulate sections of atomization.
The swirl-flow devices of the utility model air register can adopt vane type, tangential vane formula or tangential slot, swirl vane is 30 °-60 ° with the established angle of axle, the axial adjustment distance of swirl-flow devices is 0-0.1M, and therefore, this device can be regulated the setting angle of its axial distance and swirl vane and axle.
The part of the combustion air by air register produces eddy flow by swirl-flow devices, another part by in the circumferential weld of cyclone and shell by being the direct current annular jet, two strands of jets mix at the burner outlet place and flow out.By the relative axial position of screw rod (6) adjusting swirl-flow devices, to change the ratio of eddy flow and dc loop-current two parts combustion air, reach the swirl strength of regulating air register, to guarantee the water-coal-slurry burn steadily.It is vital that swirl-flow devices blade angle and its axial distance can be regulated, it influences the swirl strength of combustion air significantly, its swirl strength is controlled between the 0.3-2.7, the axial velocity that the combustion air of air register flows out is also of the utmost importance, the import of air register, outlet diameter, determine that according to combustion intensity its outlet axial velocity should be controlled in the 5-60m/s scope.
Atomizer places in the interior pipe of air register, can move freely and extracts out, regulates burning condition, utilizes in the air register fixedly atomizer of the double-screw bolt on the pipe.
The utility model is made atomizing medium with compressed air or steam, uses low-pressure air to make combustion air, can make water-coal-slurry realize the burning of stability and high efficiency rate ground.This burner structure is simple, reasonable, easy operating, and the adjusting ratio is big, and the gas consumption rate is low, and mixing and atomizing effect are good, and combustion stability is good, and efficient height, safe and reliable can move for a long time continuously, and the disposal of pollutants index is low.
Water-coal-slurry cheap, use water coal slurry burner can obtain energy-conservation, the effect that reduces cost.Can be widely used in industrial furnace and other thermal apparatus of industries such as various metallurgy, chemical industry, pottery, building materials, machinery.
Claims (5)
1, the high-concentration coal-water slurry burner, the center is an atomizer, the overcoat air register, it is characterized in that atomizer places the interior pipe of air register, removable atomizer is regulated its axial location, atomizer comprises shower nozzle, interior pipe, outer tube and sealing nut, shower nozzle is that single hole is straight-through, mix y-type structure in half, interior pipe is the water-coal-slurry carrier pipe, and the circular passage between outer tube and interior pipe is the atomizing medium carrier pipe, the outlet of atomizing medium carrier pipe is connected with interior pipe outlet section, interior pipe outlet section is the mixer of water-coal-slurry, and the diameter of pipe was 0.001-0.005M in its diameter of inner pipe 0.003-0.012M, atomizing medium pipe entered, sections of atomization length is 0.005-0.015M, air register is a single stage type, comprises interior pipe, shell, swirl-flow devices, adjusting screw(rod) and nut, axostylus axostyle is connected with swirl-flow devices, can regulate the axial distance of swirl-flow devices.
2,, it is characterized in that mixer in the atomizer shower nozzle, 30-60 ° in the center line angle of cut of the inlet of atomizing medium and interior pipe connected pipe according to the described water coal slurry burner of claim 1.
3, according to the described water coal slurry burner of claim 1, it is characterized in that atomizer shower nozzle and outer tube, connect and sealing the distance that can regulate sections of atomization by sealing nut.
4, according to the described water coal slurry burner of claim 1, it is characterized in that import, the outlet of air register, determine that according to combustion intensity its outlet axial velocity is 5-60m/s.
5, according to the described water coal slurry burner of claim 1, it is characterized in that swirl-flow devices, can adopt vane type, tangential vane, tangential slot.Swirl vane is 30 °-60 ° with the setting angle of axle, and blade adjustments can be regulated the axial location and the swirl vane setting angle of swirl-flow devices apart from 0-0.10M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221662 CN2076199U (en) | 1990-10-10 | 1990-10-10 | High-concentration water-coal slurry burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221662 CN2076199U (en) | 1990-10-10 | 1990-10-10 | High-concentration water-coal slurry burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2076199U true CN2076199U (en) | 1991-05-01 |
Family
ID=4899766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90221662 Withdrawn CN2076199U (en) | 1990-10-10 | 1990-10-10 | High-concentration water-coal slurry burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2076199U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220960B (en) * | 2007-01-12 | 2010-06-23 | 向英 | Water-coal-slurry atomizer and water-coal-slurry combustion device including the same |
| CN102913903A (en) * | 2012-11-08 | 2013-02-06 | 北京科技大学 | High-concentration pulverized coal burner |
| CN106838896A (en) * | 2017-04-01 | 2017-06-13 | 郑州鼎然环保科技有限公司 | A kind of dore furnace single channel burner |
-
1990
- 1990-10-10 CN CN 90221662 patent/CN2076199U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220960B (en) * | 2007-01-12 | 2010-06-23 | 向英 | Water-coal-slurry atomizer and water-coal-slurry combustion device including the same |
| CN102913903A (en) * | 2012-11-08 | 2013-02-06 | 北京科技大学 | High-concentration pulverized coal burner |
| CN102913903B (en) * | 2012-11-08 | 2015-08-26 | 北京科技大学 | Burner for Pulverized Coal of High Concentration |
| CN106838896A (en) * | 2017-04-01 | 2017-06-13 | 郑州鼎然环保科技有限公司 | A kind of dore furnace single channel burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |