CN101650027B - Multifunction coal dust combustor - Google Patents
Multifunction coal dust combustor Download PDFInfo
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- CN101650027B CN101650027B CN2009100660814A CN200910066081A CN101650027B CN 101650027 B CN101650027 B CN 101650027B CN 2009100660814 A CN2009100660814 A CN 2009100660814A CN 200910066081 A CN200910066081 A CN 200910066081A CN 101650027 B CN101650027 B CN 101650027B
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- coal dust
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- 239000002817 coal dust Substances 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003245 coal Substances 0.000 claims abstract description 54
- 239000000843 powder Substances 0.000 claims description 17
- 235000010599 Verbascum thapsus Nutrition 0.000 claims description 11
- 239000003607 modifier Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 12
- 230000001105 regulatory Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 210000003660 Reticulum Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 210000003027 Ear, Inner Anatomy 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention discloses a multifunction coal dust combustor of the technical field of road construction and maintenance machinery, comprising a traveling chassis, a combustion furnace, an air and coal dust regulating mechanism, a drive mechanism, a blower, an automatic ignition device and an electric control system, wherein the air and coal dust regulating mechanism consists of an electromotion air valve, a pipeline, a flap valve and a Venturi pipe; an air outlet is connected with the combustion furnace; the pipeline comprises an automatic ignition device channel, a dense coal dust channel, a thin coal dust channel, a secondary air channel and a third air channel which are arranged in sequence from inside to outside; the outlet end of the dense coal dust channel is connected with the Venturi pipe; the outlet of the Venturi pipe is provided with a bluff body; and the flap valve is arranged on the inlet ends of the dense coal dust channel and the thin coal dust channel. The multifunction coal dust combustor has high degree of automation, sufficient combustion and high efficiency, thereby lowering demands on coal quality, and long service life and can realize the functions of automatic rotation of a combustion chamber, automatic travel of the whole combustor, automatic ignition, air oil automatic regulation and temperature automatic control.
Description
Technical field
The invention belongs to and build the road maintainance machinery technical field, be specifically related to a kind of for the multifunction coal dust combustor of thermal source is provided with hot equipment in the road building machine.
Background technology
At present, China is that the pulverized coalapparatus major part is made up of coal-fired combusting device, coal pulverizer, conveying coal pipe, oil-firing system and several parts of control system at the used coal-fired heat resource equipment of the industry of building the road.Coal-fired combusting device is fixed on the underframe and can not rotates, and it is inhomogeneous to cause the chamber wall of combustion chamber to be heated, and causes local damage in the use easily, and easily forms local slagging scorification.Road wheel is installed on the underframe, and the position of burner is adjusted by the common push-and-pull of many people, operates very inconvenient.In the production process, the artificial last coal in coal pulverizer frequently of needs, labour intensity is big, and working environment is more abominable, and is also bigger to the harm of human body.Ignite before this device work, need manually fuel oil to be lighted, the fuel oil coal dust that ignites with torch.Because the ature of coal difference of China various places is bigger, uses the manual firing, ignition success rate is lower, and is dangerous simultaneously higher, and often appearance need repeatedly light a torch, and operation is extremely inconvenient.In normal productive process, the heat required with hot equipment often is in fluctuation status, require the coal supply amount to change thereupon, the most coal supply amounts of manually adjusting that adopt of existing equipment, so artificial factor exists burning insufficient and coal supply amount and the inharmonic situation of institute's calorific requirement to very big with hot equipment operate as normal influence.
Summary of the invention
For solving the above-mentioned defective that prior art exists, the object of the present invention is to provide a kind of automatic degree height, easy to operate, efficiency of combustion height, the multifunction coal dust combustor of long service life.Have the operation high efficient and reliable and also can realize automatic rotation, walking automatically, igniting automatically, automatic coal supply function.
For achieving the above object, the technical solution used in the present invention is: this multifunction coal dust combustor has the walking underframe, burner hearth, wind powder governor motion, driving mechanism, blower fan, automatic ignition device and electric control system, described walking underframe is by support body, travel driving unit, rotating driving device is formed, it is characterized in that: described wind powder governor motion is by Electric air valve, pipeline, flap valve, Venturi tube is formed, the pipeline of wind powder governor motion, blower fan is separately fixed on the walking underframe, air outlet is connected with burner hearth, pipeline is followed successively by the automatic ignition device passage from inside to outside, the thick coal culm passage, the thin powdered coal passage, secondary air channel, the tertiary air passage, the port of export of described thick coal culm passage connects Venturi tube, the Venturi tube exit position is provided with the bluff body that makes thick coal culm and thin powdered coal mixed flow, described flap valve is positioned at thick coal culm passage and thin powdered coal feeder connection end, makes coal dust form deep or light two parts and enters separately passage respectively.
Described electric control system is made of operating desk, PLC controller, sensor, reach PLC by heat sensor from being subjected to thermal source to gather signal, PLC can adjust the coal supply amount automatically according to design temperature, and revises hysteresis error automatically according to setting curve, the live signal feedback modifiers.
Described travel driving unit has four road wheels, and the rear end two-wheeled is installed on the same rotating shaft, and rotating shaft links to each other with motor with reductor by chain-drive mechanism.
Described rotating driving device has four rotatable rollers on walking underframe top, and roller supports the rolling ring on the burner hearth housing, and wherein two rollers are driving wheel, link to each other with motor with reductor by chain-drive mechanism, and all the other two rollers are as support wheel.
Described automatic ignition device has burning torch, and burning torch is positioned at the automatic ignition device passage of thick coal culm passage, and burning torch is connected with the minitype cylinder that burning torch can be advanced and retreat automatically.
Described pipeline and burner hearth connecting portion seal by heat-resistant rubber slab.
Take the beneficial effect of technique scheme to be: this multifunction coal dust combustor has wind powder governor motion, the mixture of wind and coal dust enters wind coal governor motion with certain speed by pipeline, be provided with flap valve at thick coal culm passage and thin powdered coal feeder connection end, by the control YE flap valve is finely tuned, make coal dust form deep or light two parts and enter thick coal culm passage and thin powdered coal passage respectively, the deep or light wind powder mixture after the adjusting passage by separately respectively enters combustion chamber.The thick coal culm of central passage is handled through Venturi tube, from outlet evenly ejection at a high speed, under igniting, lighted automatic ignition device, the high temperature recirculation zone that forms through bluff body makes dense, thin powdered coal mixing continuous burning, add two, tertiary air segmentation air distribution, the coal dust intermixture of formation is easy to light, flameholding is abundant.Because this burner has bigger combustion chamber, form the high-temperature temperature field, coal dust not only can fully burn, heat energy utilization rate height, and flame can not form localized hyperthermia and burn out the equipment that needs heating in outlet.This structure composition utilizes deep or light separation, Venturi tube structure and bluff body structure, adjust in the wind powder mixture deep or light phase ratio and ignition zone heat energy motion structure and make that coal powder ignition point reduces, the adaptation coal is wide, experimental results show that fugitive constituent also can burn smoothly at the coal dust of 10-15%, reduced requirement, made its accommodation broadening ature of coal.Control system adopts PLC control, reaches PLC by heat sensor from being subjected to thermal source to gather signal, and PLC can adjust the coal supply amount automatically according to design temperature, and revises hysteresis error automatically according to setting curve, the live signal feedback modifiers.Travel driving unit can use about the site space situation or move forward and backward, and conveniently equipment is overhauled.Automatic rotating device can make burner hearth be rotated around its axis, and rotary speed can be fixed also can be adjustable arbitrarily under Frequency Converter Control, avoided the too early scaling loss of burner hearth slagging scorification and stockhole, prolongs the service life of burner hearth.Be equipped with automatic ignition device, burning torch can be advanced and retreat automatically, has parts such as flame detection, high-tension ignition electrode, little oil gun, minitype cylinder, directly lights the light oil of pressure atomization with high-voltage arc, and coal dust ignites.Compared with prior art, this multifunction coal dust combustor has the automaticity height, sufficient combustion efficient height, functions such as combustion chamber rotates automatically, the walking automatically of burner integral body, automatic ignition device, the adjusting automatically of wind oil, the automatic control of temperature.
Description of drawings
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
Fig. 1 is the overall schematic of the multi-functional powdered coal burner of the present invention.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Multifunction coal dust combustor as shown in Figure 1, has walking underframe 21, the walking underframe is made up of support body, travel driving unit, rotating driving device, the bottom of walking underframe 21 is provided with travel driving unit, have four road wheels 12, the rear end two-wheeled is installed on the same rotating shaft, and rotating shaft links to each other with motor 18 with reductor by chain-drive mechanism.Walking underframe 21 tops are provided with rotating driving device, this rotating driving device has four rotatable rollers 10 that are arranged on the walking underframe 21, on burner hearth cylindrical shell 11, be provided with rolling ring 9, roller 10 supports rolling ring 9, wherein two rollers are driving wheel, link to each other with motor with reductor by chain-drive mechanism, all the other two rollers are as support wheel, frictional force drives burner hearth by roller under reductor, chain, sprocket wheel drive rotates, the result of rotation makes and is heated evenly in the burner hearth, ash discharge is convenient, improves burner hearth service life.Walking underframe 21 tops also are provided with wind powder governor motion, blower fan 22, automatic ignition device 1 and electric control system.
Wind powder governor motion is made up of Electric air valve 13, pipeline, flap valve 15, Venturi tube 4, the effect of wind powder governor motion is that wind powder mixture and two tertiary airs are entered burner hearth by certain after being listed as adjustment, the pipeline of wind powder governor motion, blower fan 22 are separately fixed on the walking underframe 21, air outlet is connected with burner hearth, and pipeline and burner hearth connecting portion seal by heat-resistant rubber slab.Pipeline is followed successively by the automatic ignition device passage from inside to outside, thick coal culm passage 3, thin powdered coal passage 2, secondary air channel 6, tertiary air passage 7, the mixture of wind and coal dust is through two right angle pipelines 16,20 enter wind powder governor motion, flap valve 15 is positioned at thick coal culm passage and thin powdered coal feeder connection end, by the control YE flap valve 15 is finely tuned, make and form deep or light two parts through the coal dust behind the bend and enter thick coal culm passage 3 and thin powdered coal passage 2 respectively, the port of export at thick coal culm passage 3 connects Venturi tube 4, spray from outlet after the adjustment of thick coal culm process venturi pipeline, be provided with the bluff body 14 that makes thick coal culm and thin powdered coal mixed flow in the exit position of Venturi tube 4, the thick coal culm of central passage is handled through Venturi tube 4, from outlet evenly ejection at a high speed, lighted under automatic ignition device ignites, the high temperature recirculation zone that forms through bluff body makes dense, thin powdered coal mixing continuous burning.The arrival end of secondary air channel 6 and tertiary air passage 7 is connected with overfire air fan 17 and tertiary air machine 19 respectively, the inner connecting way of secondary air channel 6 and tertiary air passage 7 is that the labyrinth is connected, prevent two tertiary air phase mutual interference, two tertiary airs are by Electric air valve control air quantity size, and the outlet of secondary air channel 6 is positioned on the bonnet of burner hearth.Burner hearth is made up of bocca 8, cylindrical shell 11 and bonnet, and stack shell and bocca inwall all have refractory brick 5 linings, and there is interlayer the outside, and interlayer constitutes tertiary air passage 7.
Electric control system is made of operating desk, PLC controller, sensor, reach PLC by heat sensor from being subjected to thermal source to gather signal, PLC can adjust the coal supply amount automatically according to design temperature, and revises hysteresis error automatically according to setting curve, the live signal feedback modifiers.Adopt PLC control, import multiple coal-air ratio curve, different coals is selected for use different combustion curves, comprehensively adjust the coal powder light-dark ratio, secondary wind, tertiary air air quantity guarantee sufficient combustion.
Claims (6)
1. multifunction coal dust combustor, has the walking underframe, burner hearth, wind powder governor motion, driving mechanism, blower fan, automatic ignition device and electric control system, described walking underframe is by support body, travel driving unit, rotating driving device is formed, it is characterized in that: described wind powder governor motion is by Electric air valve, pipeline, flap valve, Venturi tube is formed, the pipeline of wind powder governor motion, blower fan is separately fixed on the walking underframe, air outlet is connected with burner hearth, pipeline is followed successively by the automatic ignition device passage from inside to outside, the thick coal culm passage, the thin powdered coal passage, secondary air channel, the tertiary air passage, the port of export of described thick coal culm passage connects Venturi tube, the Venturi tube exit position is provided with the bluff body that makes thick coal culm and thin powdered coal mixed flow, described flap valve is positioned at thick coal culm passage and thin powdered coal feeder connection end, makes coal dust form deep or light two parts and enters separately passage respectively.
2. multifunction coal dust combustor according to claim 1, it is characterized in that: described electric control system is made of operating desk, PLC controller, sensor, reach PLC by heat sensor from being subjected to thermal source to gather signal, PLC can adjust the coal supply amount automatically according to design temperature, and revise hysteresis error automatically according to setting curve, the live signal feedback modifiers.
3. multifunction coal dust combustor according to claim 1 is characterized in that: described travel driving unit has four road wheels, and the rear end two-wheeled is installed on the same rotating shaft, and rotating shaft links to each other with motor with reductor by chain-drive mechanism.
4. multifunction coal dust combustor according to claim 1, it is characterized in that: described rotating driving device has four rotatable rollers on walking underframe top, roller supports the rolling ring on the burner hearth housing, wherein two rollers are driving wheel, link to each other with motor with reductor by chain-drive mechanism, all the other two rollers are as support wheel.
5. multifunction coal dust combustor according to claim 1, it is characterized in that: described automatic ignition device has burning torch, burning torch is positioned at the automatic ignition device passage of thick coal culm passage, and burning torch is connected with the minitype cylinder that burning torch can be advanced and retreat automatically.
6. multifunction coal dust combustor according to claim 1 is characterized in that: described pipeline and burner hearth connecting portion seal by heat-resistant rubber slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100660814A CN101650027B (en) | 2009-09-08 | 2009-09-08 | Multifunction coal dust combustor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100660814A CN101650027B (en) | 2009-09-08 | 2009-09-08 | Multifunction coal dust combustor |
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| Publication Number | Publication Date |
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| CN101650027A CN101650027A (en) | 2010-02-17 |
| CN101650027B true CN101650027B (en) | 2011-06-01 |
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| CN2009100660814A Expired - Fee Related CN101650027B (en) | 2009-09-08 | 2009-09-08 | Multifunction coal dust combustor |
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| CN105318348A (en) * | 2015-11-05 | 2016-02-10 | 哈尔滨汇通电力工程有限公司 | Thermal power generating unit coal feeding amount feedback correction method based on coal-air ratio coal thermal value correction |
| CN106196039B (en) * | 2016-08-29 | 2018-05-25 | 煤科院节能技术有限公司 | A kind of slotted blunt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487949U (en) * | 2009-09-08 | 2010-05-26 | 河南陆德筑机股份有限公司 | Multifunctional pulverized coal burner |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487949U (en) * | 2009-09-08 | 2010-05-26 | 河南陆德筑机股份有限公司 | Multifunctional pulverized coal burner |
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Inventor after: Wang Zhaorui Inventor after: Zhu Bingwei Inventor after: Lv Qinglin Inventor after: Yan Shulin Inventor after: Wang Xulang Inventor after: Zhuang Zhenxian Inventor after: Gan Fubin Inventor after: Shi Zhongyu Inventor after: Wang Qinmei Inventor before: Wang Zhaorui Inventor before: Zhu Bingwei Inventor before: Lv Qinglin Inventor before: Yan Shulin Inventor before: Wang Xulang Inventor before: Zhuang Zhenxian Inventor before: Gan Fubin Inventor before: Shi Zhongyu Inventor before: Gou Yanbo Inventor after: Wang Zhaorui Inventor after: Liu Jibiao Inventor after: Zhu Bingwei Inventor after: Lv Qinglin Inventor after: Yan Shulin Inventor after: Wang Xulang Inventor after: Zhuang Zhenxian Inventor after: Gan Fubin Inventor after: Shi Zhongyu Inventor after: Wang Qinmei Inventor before: Wang Zhaorui Inventor before: Zhu Bingwei Inventor before: Lv Qinglin Inventor before: Yan Shulin Inventor before: Wang Xulang Inventor before: Zhuang Zhenxian Inventor before: Gan Fubin Inventor before: Shi Zhongyu Inventor before: Wang Qinmei |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG ZHAORUI ZHU BINGWEI LV QINGLIN YAN SHULIN WANG XULANG ZHUANG ZHENXIAN GAN FUBIN SHI ZHONGYU WANG QINMEI TO: WANG ZHAORUI ZHU BINGWEI LV QINGLIN YAN SHULIN WANG XULANG ZHUANG ZHENXIAN GAN FUBIN SHI ZHONGYU WANG QINMEI LIU JIBIAO Free format text: CORRECT: INVENTOR; FROM: WANG ZHAORUI ZHU BINGWEI LV QINGLIN YAN SHULIN WANG XULANG ZHUANG ZHENXIAN GAN FUBIN SHI ZHONGYU GOU YANBO TO: WANG ZHAORUI ZHU BINGWEI LV QINGLIN YAN SHULIN WANG XULANG ZHUANG ZHENXIAN GAN FUBIN SHI ZHONGYU WANG QINMEI |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20160908 |