CN106545850A - A kind of using method of coal burner shower nozzle - Google Patents
A kind of using method of coal burner shower nozzle Download PDFInfo
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- CN106545850A CN106545850A CN201510610714.9A CN201510610714A CN106545850A CN 106545850 A CN106545850 A CN 106545850A CN 201510610714 A CN201510610714 A CN 201510610714A CN 106545850 A CN106545850 A CN 106545850A
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- blast pipe
- mixing chamber
- coal
- air
- shower nozzle
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Abstract
The invention discloses a kind of using method of coal burner shower nozzle, first coal dust is passed through in coal burner shower nozzle, coal dust is entered in mixing chamber by coal injection pipe, air is sprayed in the upper blast pipe of mixing chamber upper and lower ends and lower blast pipe, on, the connecting tube that the junction of lower blast pipe and mixing chamber is installed, the swirl angle that spiral board and spiral board are provided with connecting tube is 30 °, the air part injected is entered in mixing chamber in direct current mode by connecting tube, it is indoor that remainder enters mixing by way of spiral board is with eddy flow, mixing chamber inward eddy can produce stronger turbulence intensity with the air of direct current, so that coal dust is fully uniformly mixed together with air, quickly it is delivered in burning cover by the fan-shaped aperture on flow distribution plate, facilitate ignition.
Description
Technical field
The present invention relates to a kind of burner, specifically refers to a kind of using method of coal burner shower nozzle.
Background technology
Coal burner can make coal dust produce high temperature eddy current at short notice, complete with burning, and heat utilization efficiency is high, smoke abatement and dust control, energy-efficient, improve working conditions, the advantages of reducing labor intensity.Reducing NOx generations can not be too high with the temperature that discharge is control combustion zone at all, but low-temperature burning affects the combustion rate of coal dust again, coordinating the application of this two technologies, to make up to comprehensive optimum efficiency be purpose, actually requires that the overall process burnt to coal dust is controlled by；The stability of coal powder ignition can either be ensured, have relatively low ignition temperature again, while there is burning time sufficiently long and at a certain temperature to ensure to burn.
The coal injection pipe of traditional coal burner, its simple structure, and generally only with a wind coal channel, when air is mixed with coal dust as ventilation is larger, so that coal dust is unstable with the mixed proportion of air, and then cause the length of the flame at the shower nozzle of burner unstable；And in logical coal dust, combustion gas mixes with air and can produce very big noise, the operating efficiency of impact staff.
The content of the invention
The present invention provides a kind of using method of coal burner shower nozzle, and the convenient coal dust in burning is well mixed with air, improves the efficiency of combustion of burner.
The purpose of the present invention is by the following technical programs reaching：
The present invention is passed through coal dust in coal burner shower nozzle first, coal dust is entered in mixing chamber by coal injection pipe, air is sprayed in the upper blast pipe of mixing chamber upper and lower ends and lower blast pipe, on, the connecting tube that the junction of lower blast pipe and mixing chamber is installed, the swirl angle that spiral board and spiral board are provided with connecting tube is 30 °, the air part injected is entered in mixing chamber in direct current mode by connecting tube, it is indoor that remainder enters mixing by way of spiral board is with eddy flow, mixing chamber inward eddy can produce stronger turbulence intensity with the air of direct current, so that coal dust is fully uniformly mixed together with air, quickly it is delivered in burning cover by the fan-shaped aperture on flow distribution plate, facilitate ignition；Wherein coal burner shower nozzle includes support tube, burning cover is installed in one end end of the support tube, the other end of support tube is connected with mixing chamber, upper blast pipe and lower blast pipe are tiltedly installed with respectively in the upper and lower ends of mixing chamber, the end of mixing chamber is connected with coal injection pipe, flow distribution plate is installed in the support tube, the flow distribution plate coordinates with ligament is supported, multiple fan-shaped apertures are provided with the flow distribution plate, the upper blast pipe, lower blast pipe is provided with connecting tube with the junction of mixing chamber, multiple spiral boards are welded with connecting tube, the swirl angle of spiral board is 30 °.
Silencer mechanism is additionally provided with the upper blast pipe and the inner surface of lower blast pipe.
Air-valve is provided with the upper blast pipe and lower blast pipe.
The silencer mechanism includes body, and multiple muffler chambers are provided with the inboard wall of tube body, and filler is provided with muffler chamber, and described filler is self-adhesion fire prevention damping and silencing cotton.
Spiral board rotation direction in the upper blast pipe is left-handed, and the spiral board rotation direction in the lower blast pipe is dextrorotation.
The present invention compared with prior art, had the following advantages that and beneficial effect：
1st, the swirl angle of spiral board of the present invention is 30 ° so that air obtains preferable rotates effe on spiral board, produces certain momentum, beneficial to rapidly mixing in mixing room air and coal dust.
2nd, the air of direct current of the invention and eddy flow is spurted in mixing chamber, so that the turbulence intensity of gas is greatly improved in mixing chamber, the noise of larger decibel can be also produced simultaneously, the silencer mechanism installed on inner surface of the upper blast pipe with lower blast pipe can be by most noise absorption, reduce the noise of coal dust firing so that burning cover flame is undisturbedly burnt.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the part of the application, does not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Structural representations of the Fig. 1 for coal burner；
Front views of the Fig. 2 for flow distribution plate；
Schematic diagrames of the Fig. 3 for silencer mechanism；
Mark and corresponding parts title in accompanying drawing：
1- support tubes, 2- burning covers, 3- mixing chambers, 4- upper blast pipes, 5- lower blast pipes, 6- coal injection pipes, 7- flow distribution plates, 8- connecting tubes, 9- spiral boards, 10- silencer mechanisms, 11- air-valves, 12- sector apertures, 13- bodys, 14- muffler chambers, 15- fillers.
Specific embodiment
Embodiment 1
As shown in Figure 1, the present invention is passed through coal dust in coal burner shower nozzle first, coal dust is entered in mixing chamber by coal injection pipe, air is sprayed in the upper blast pipe of mixing chamber upper and lower ends and lower blast pipe, on, the connecting tube that the junction of lower blast pipe and mixing chamber is installed, the swirl angle that spiral board and spiral board are provided with connecting tube is 30 °, the air part injected is entered in mixing chamber in direct current mode by connecting tube, it is indoor that remainder enters mixing by way of spiral board is with eddy flow, mixing chamber inward eddy can produce stronger turbulence intensity with the air of direct current, so that coal dust is fully uniformly mixed together with air, quickly it is delivered in burning cover by the fan-shaped aperture on flow distribution plate, facilitate ignition；Wherein coal burner shower nozzle support tube 1, burning cover 2 is installed in one end end of the support tube 1, the other end of support tube 1 is connected with mixing chamber 3, upper blast pipe 4 and lower blast pipe 5 are tiltedly installed with respectively in the upper and lower ends of mixing chamber 3, the end of mixing chamber 3 is connected with coal injection pipe 6, flow distribution plate 7 is installed in the support tube 1, the flow distribution plate 7 is coordinated with 1 gap of support tube, multiple fan-shaped apertures 12 are provided with the flow distribution plate 7, the upper blast pipe 4, lower blast pipe 5 is provided with connecting tube 8 with the junction of mixing chamber 3, multiple spiral boards 9 are welded with connecting tube 8, the swirl angle of spiral board 9 is 30 °；Silencer mechanism 10 is additionally provided with the upper blast pipe 4 and the inner surface of lower blast pipe 5, the silencer mechanism 10 includes body 13, multiple muffler chambers 14 are provided with 13 inwall of the body, filler 15 in muffler chamber 14, is provided with, described filler 15 is self-adhesion fire prevention damping and silencing cotton；In upper and lower blast pipe 4,5, the air of direct current and eddy flow is spurted in mixing chamber 3, so that the turbulence intensity of gas is greatly improved in mixing chamber 3, the noise of larger decibel can be also produced simultaneously, the silencer mechanism 10 installed on inner surface of the upper blast pipe 4 with lower blast pipe 5 can be by most noise absorption, reduce the noise of coal dust firing so that 2 flame of burning cover is undisturbedly burnt.
During present invention work，Coal dust is entered in mixing chamber 3 by coal injection pipe 6，Air is sprayed in the upper blast pipe 4 of 3 upper and lower ends of mixing chamber and lower blast pipe 5，On、Lower blast pipe 4、5 connecting tubes 8 installed with the junction of mixing chamber 3，The swirl angle that spiral board 9 and spiral board 9 are provided with connecting tube 8 is 30 °，The air-valve 11 of setting can be according to the needs of actual conditions，Quick regulation intake，To control 2 flame size of burning cover，The air part injected is entered in mixing chamber 3 in direct current mode by connecting tube 8，Remainder is entered in mixing chamber 3 by way of spiral board 9 is with eddy flow，3 inward eddy of mixing chamber can produce stronger turbulence intensity with the air of direct current，So that coal dust is fully uniformly mixed together with air，Quickly it is delivered in burning cover 2 by the fan-shaped aperture 12 on flow distribution plate 7，Facilitate ignition，Substantially increase the efficiency of combustion of coal dust；The swirl angle of spiral board 7 is set to 30 ° so that air obtains preferable rotates effe on spiral board 7, produces certain momentum, beneficial to rapidly mixing in mixing room air and coal dust.
Wherein, 9 rotation direction of spiral board in upper blast pipe 4 is left-handed, and 9 rotation direction of spiral board in the lower blast pipe 5 is dextrorotation.In the presence of spiral board 9, direction of rotation while sufficient combustion-supporting gas is provided, enhances the combustion efficiency of coal dust conversely, further fully can mix with the coal dust in coal injection pipe 6 in mixing chamber to the eddy flow spurted into from upper and lower blast pipe 4,5.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; it is be should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of using method of coal burner shower nozzle, it is characterised in that：First coal dust is passed through in coal burner shower nozzle, coal dust is entered in mixing chamber by coal injection pipe, air is sprayed in the upper blast pipe of mixing chamber upper and lower ends and lower blast pipe, on, the connecting tube that the junction of lower blast pipe and mixing chamber is installed, the swirl angle that spiral board and spiral board are provided with connecting tube is 30 °, the air part injected is entered in mixing chamber in direct current mode by connecting tube, it is indoor that remainder enters mixing by way of spiral board is with eddy flow, mixing chamber inward eddy can produce stronger turbulence intensity with the air of direct current, so that coal dust is fully uniformly mixed together with air, quickly it is delivered in burning cover by the fan-shaped aperture on flow distribution plate, facilitate ignition；Wherein coal burner shower nozzle includes support tube（1）, in the support tube（1）One end end burning cover is installed（2）, support tube（1）The other end be connected with mixing chamber（3）, in mixing chamber（3）Upper and lower ends be tiltedly installed with upper blast pipe respectively（4）And lower blast pipe（5）, mixing chamber（3）End be connected with coal injection pipe（6）, the support tube（1）Flow distribution plate is inside installed（7）, the flow distribution plate（7）With support tube（1）Gap coordinates, the flow distribution plate（7）On be provided with multiple fan-shaped apertures（12）, the upper blast pipe（4）, lower blast pipe（5）With mixing chamber（3）Junction connecting tube is installed（8）, in connecting tube（8）On be welded with multiple spiral boards（9）, spiral board（9）Swirl angle be 30 °.
2. the using method of a kind of coal burner shower nozzle according to claim 1, it is characterised in that：The upper blast pipe（4）With lower blast pipe（5）Inner surface on be additionally provided with silencer mechanism（10）.
3. the using method of a kind of coal burner shower nozzle according to claim 1, it is characterised in that：In the upper blast pipe（4）And lower blast pipe（5）On be provided with air-valve（11）.
4. the using method of a kind of coal burner shower nozzle according to claim 2, it is characterised in that：The silencer mechanism（10）Including body（13）, the body（13）Multiple muffler chambers are provided with inwall（14）, muffler chamber（14）Filler is provided with inside（15）, described filler（15）For self-adhesion fire prevention damping and silencing cotton.
5. the using method of a kind of coal burner shower nozzle according to claim 1 ~ 4 any one, it is characterised in that：The upper blast pipe（4）In spiral board（9）Rotation direction is left-handed, the lower blast pipe（5）In spiral board（9）Rotation direction is dextrorotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610714.9A CN106545850A (en) | 2015-09-23 | 2015-09-23 | A kind of using method of coal burner shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610714.9A CN106545850A (en) | 2015-09-23 | 2015-09-23 | A kind of using method of coal burner shower nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106545850A true CN106545850A (en) | 2017-03-29 |
Family
ID=58364544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510610714.9A Pending CN106545850A (en) | 2015-09-23 | 2015-09-23 | A kind of using method of coal burner shower nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545850A (en) |
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2015
- 2015-09-23 CN CN201510610714.9A patent/CN106545850A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170329 |