CN101956989A - Spiral deslagging device of biomass boiler - Google Patents
Spiral deslagging device of biomass boiler Download PDFInfo
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- CN101956989A CN101956989A CN 201010195922 CN201010195922A CN101956989A CN 101956989 A CN101956989 A CN 101956989A CN 201010195922 CN201010195922 CN 201010195922 CN 201010195922 A CN201010195922 A CN 201010195922A CN 101956989 A CN101956989 A CN 101956989A
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Abstract
The invention discloses a spiral deslagging device of a biomass boiler, which comprises a rotating shaft, a cylinder, a control unit and a charge level indicator, wherein the rotating shaft is arranged in the cylinder and is sleeved with spiral blades; the cylinder is provided with a slag inlet and a slag outlet; the slag inlet of the cylinder is connected and communicated with the hearth of the biomass boiler; the charge level indicator is arranged in the cylinder; and the control unit is connected with the charge level indicator, the rotating shaft and the cylinder respectively for controlling the rotation of the rotating shaft and the opening and closing of the slag inlet and slag outlet on the cylinder according to the signal of the charge level indicator. In the invention, according to the characteristics of small ash amount, light weight and small coking degree of biomass fuels after combustion, the charge level indicator is arranged in the cylinder, the accumulated amount of the ash can be measured accurately, the furnace slag can be discharged periodically, the loss caused by electricity waste and wear in the continuous operation of the spiral deslagging device is reduced, the opening time of the hearth of the boiler is reduced, heat loss is reduced, and fuel is saved.
Description
Technical field
The present invention relates to a kind of boiler slag removal equipment, more particularly, the present invention relates to a kind of spiral deslagging device that is used for biomass boiler.
Background technology
The mode of the lime-ash of coal-burning boiler removing at present comprises artificial slagging-off mode and utilizes special equipment slagging-off mode, artificial slagging-off labour intensity is big, when extinguishing lime-ash, can produce a large amount of flue gases that contaminative is arranged, therefore except be not more than at evaporation capacity 0.5 ton/time (t/h) boiler on also use the artificial slagging-off, generally all adopt special slag removal equipment slagging-off.Slag removal equipment is divided into mechanical deslagging, water sluice and strength deashing device, and scraper slagging machine, spiral tapping machine, Martin's mucking machine and disk mucking machine etc. belong to mechanical deslagging equipment, and be wherein common with the above two.
The slag removal equipment that is applied to biomass boiler is based on scraper slagging machine, spiral tapping machine.Adopt the scraper-type mucking machine, be out of order easily, mainly show as clamp, chain rupture and wearing and tearing etc., and the scraper-type mucking machine is general and traveling-grate stoker is supporting.Spiral-type slag eliminator is relatively simple for structure, and floor space is little, and material is carried in closed shell, so the environmental sanitation condition is good; Its shortcoming is that power consumption is bigger, and equipment attrition serious (especially flight and main shaft) is blocked when carrying relatively large lime-ash easily.
Chinese patent ZL200420035071.7 discloses a kind of spiral mucking machine, comprise motor, decelerator, cylindrical shell, it is characterized in that motor, decelerator are contained in the upside of cylindrical shell, on the axle bed of cylindrical shell two ends, be fixed with a helical blade axle, on the helical blade axle helical blade is housed, motor drives decelerator by tumbler and the helical blade axle rotates.Though this spiral mucking machine has advantages such as structure environmental pollution comparatively simple, that cause is little, but because at steaming hour, it is to move continuously incessantly to slag tap, and causes power consumption big, equipment attrition is serious, and blocks easily when carrying relatively large lime-ash and break down.
Chinese patent ZL200810244573.3 discloses a kind of modified water-cooling spiral tapping machine, it comprises motor, described motor connects power transmission shaft, be set with helical blade on the described power transmission shaft, described helical axis is installed on U type tube body, and described cylindrical shell is provided with the lime-ash entrance and exit, and described power transmission shaft and described blade are provided with the cooling-water duct that is connected, the entrance and exit of described cooling-water duct is arranged at the transmission the tip of the axis respectively, is provided with cooling-water duct in the described barrel wall.This modified water-cooling spiral tapping machine is guaranteeing that heat exchange area is big, tapping temperature is low, good cooling results under the condition that lime-ash can utilize again, but still fails to solve the problem that power consumption is big, equipment attrition is serious.
Chinese patent ZL 200620170631.9 discloses a kind of water-cooling spiral tapping machine with broken function, it comprises disintegrating machine, the discharging opening of described disintegrating machine communicates with the cooling cylindrical shell, described cooling cylindrical shell is installed on support, be provided with rotating shaft in the described cooling cylindrical shell, described rotating shaft is connected by drive mechanism with motor shaft, described shaft set has helical blade, described rotating shaft, helical blade are respectively arranged with the cooling duct, be connected between the described cooling duct, the water inlet of the cooling duct that is connected, delivery port are provided with described rotating shaft respectively.The lime-ash that this water-cooling spiral tapping machine forms after can broken biomass fuel combustion, and these lime-ash cooling backs are done output, the fertilizer in the lime-ash can not run off.But this water-cooling spiral tapping machine is to move continuously incessantly to slag tap at steaming hour equally, causes power consumption big, and equipment attrition is serious.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide a kind of biomass boiler spiral deslagging device of regularly slagging tap, to solve the problem that power consumption is big, equipment attrition is serious that spiral tapping machine turns round and causes continuously.
In order to realize the purpose of the invention described above, the invention provides a kind of biomass boiler spiral deslagging device, it comprises rotating shaft and cylindrical shell, rotating shaft is installed in the cylindrical shell, be arranged with helical blade in the rotating shaft, cylindrical shell is provided with slag inlet and slag notch, the slag inlet of cylindrical shell is connected with the burner hearth of biomass boiler and communicates, also comprise a control module and level-sensing device, this level-sensing device is arranged in the described cylindrical shell, and control module is connected with level-sensing device, rotating shaft, cylindrical shell respectively with opening and closing according to slag inlet, slag notch on the rotation of the signal controlling rotating shaft of level-sensing device and the cylindrical shell.When the grey quantity of slag in boiler furnace is discharged to deslagging device is accumulated to some, level-sensing device also issues a signal to control module, control module sends operational order immediately, the slag inlet of cylindrical shell is closed, slag notch is opened by motor-driven rotatable shaft and driven the flight rotation, take lime-ash to slag notch by flight, transported behind the screw-in dolly; When lime-ash was lower than the measurement position of level-sensing device, control module sent control signal once more, the claimed apparatus setting-up time that remains in operation, after lime-ash was cleared substantially, stopped the rotation of rotating shaft this moment, opens slag inlet, close slag notch, continue deslagging in the deslagging device by the fire grate of burner hearth.
Preferably, adopt reciprocating fire grate in the burner hearth, cylindrical shell is installed on back of furnace row, and level-sensing device is arranged on the front upper place in the cylindrical shell.
Preferably, slag notch is arranged on the lower front of cylindrical shell, after helical blade before slag notch and the rotating shaft to angle be acute angle, the described helical blade behind the slag notch and the angle of rotating shaft forward direction are acute angle.To being the axial direction that points to the rotating shaft rear portion, the rotating shaft forward direction is the axial direction that points to the rotating shaft front portion after the rotating shaft.
Preferably, being obliquely installed of cylindrical shell to the front lower place, level-sensing device is installed in the top of slag notch in the cylindrical shell.
Preferably, level-sensing device determines that according to the gradient of cylindrical shell gradient is big more apart from the height of slag notch, and level-sensing device is high relatively more apart from the height of slag notch, and gradient is more little, and level-sensing device is low relatively more apart from the height of slag notch.
Preferably, material level is counted the blocking rotary type level-sensing device.
Further, the helical blade at slag notch rear is arranged with slag bucket in cylindrical shell.
Preferably, the similar V-shaped groove shape of slag bucket, its bottom is near helical blade, and the two side extends upward.
Compared with prior art, the present invention is according to biomass fuel (comprising biomass molding fuel, diffusing shape fuel etc.) few, the light weight of the burning grey quantity of slag in back, the characteristics of few coking, in rotating cylinder, set up level-sensing device, can measure the accumulating amount of lime-ash exactly, regularly discharged slag, reduce of expense electricity, the easy to wear loss that cause of spiral deslagging device because of turning round and cause continuously, reduce opening the time of boiler furnace simultaneously, reduced thermal loss, saved fuel.
The present invention is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
Embodiment one
See also Fig. 1 and Fig. 2, it (is bio-mass fuels that the biomass boiler spiral deslagging device of present embodiment is applied to biomass shaping fuel-combustion, abbreviation BMF) in the boiler, it comprises control module (not shown), rotating shaft 1, cylindrical shell 2 and blocking rotary type level-sensing device 3.Rotating shaft 1 is installed in the cylindrical shell 2, rotating shaft 1 is in transmission connection with reductor 4, the motor (not shown) drives rotating shaft 1 by reductor 4 and rotates, be arranged with helical blade 5 in the rotating shaft 1, cylindrical shell 2 is provided with slag inlet 6 and slag notch 7, the slag inlet 6 of cylindrical shell 2 is connected with the burner hearth (not shown) of biomass boiler and communicates, slag notch 7 is arranged on the lower front of cylindrical shell 2, helical blade 5 before the slag notch 7 and rotating shaft 1 back to angle be acute angle, the helical blade 5 behind the slag notch 7 is an acute angle with the angle of rotating shaft 1 forward direction; Adopt the reciprocating fire grate (not shown) in the burner hearth, cylindrical shell 2 is installed on back of furnace row, and blocking rotary type level-sensing device 3 is arranged on the front upper place in the cylindrical shell 2; The helical blade 5 at slag notch 7 rears is arranged with slag bucket 8 in cylindrical shell 2, these slag bucket 8 similar V-shaped groove shapes, its bottom is near helical blade 5, the two side extends upward, the slag bucket 8 of this V-shaped groove shape can cooperate helical blade 5 better the lime-ash of bottom to be produced a kind of forward propulsion, make the rotation of helical blade 5 more smooth, be difficult for producing the stagnation plugging fault.The operation principle that level-sensing device 3 is revolved in resistance is to utilize magneto to drive the blade rotation, when detected material rises to leaf position, blade rotation is obstructed, this resistance is passed to checkout gear in the terminal box, checkout gear is switching signal of outer mutually output then, and cut off the electricity supply blade is stopped operating, when material descends, the blade resistance disappears, checkout gear just relies on the pulling force of spring to return to reset condition, at the adjustable pulling force of the material of different specific weight, when great the pulling force of spring be adjusted to the strongest, otherwise a little less than then being adjusted to.
The lime-ash that burning generates is pushed slag bucket 8 under the promotion of reciprocal grate, mainly be piled up in the first half of cylindrical shell 2, therefore blocking rotary type level-sensing device 3 is installed in the position, front upper place of cylindrical shell 2, is convenient to accurately detect the height of piling up lime-ash.Lime-ash falls in the slag bucket 8 from back of furnace row, after the grey quantity of slag of slag bucket 8 is accumulated to the position of level-sensing device 3, level-sensing device 3 shuts down, and issue a signal to control module, control module sends operational order immediately, slag inlet 6 is closed, slag notch 7 is opened, motor begins to drive rotating shaft 1 running by reductor 4, by the helical blade behind the slag notch 75 lime-ash is pushed to slag notch 7 forward, is transported behind the screw-in dolly, when a part of lime-ash is crossed slag notch 7 its place aheads of arrival, the helical blade 5 that is obliquely installed by the opposite direction in slag notch 7 the place aheads promotes to screw in slag notch 7 backward with lime-ash, carries out efficiently and completely slagging tap.When lime-ash is lower than the measurement position of level-sensing device 3, level-sensing device 3 entrys into service, control module sends control signal once more, the instruction deslagging device remains in operation a period of time, after emptying substantially, lime-ash promptly stops the rotation of rotating shaft 1, close slag notch 7, open slag inlet 6, that carries out a new round holds the slag tapping process.
Embodiment two
The biomass boiler spiral deslagging device of present embodiment, wherein, the burner hearth of boiler is not limited to reciprocal grate, can adopt the fire grate such as the traveling-grate stoker of other type, level-sensing device also can adopt other level-sensing device, and as infrared level-sensing device or microwave level-sensing device, cylindrical shell is provided with to front lower place inclination 30 degree, level-sensing device is installed in the cylinder internal diameter place of the top of slag notch in the cylindrical shell apart from slag notch about 3/4ths, and other structure is identical with embodiment one.Lime-ash falls in the slag bucket from fire grate, forwards heaps along the slag bucket that tilts, because level-sensing device is installed in the cylindrical shell front portion, the lime-ash at this place is piled up the highest usually.Present embodiment utilizes being obliquely installed of cylindrical shell, and level-sensing device can be worked effectively and accurately, guarantees carrying out smoothly of tapping process.
Though the present invention discloses as above with preferred embodiment, is not in order to limit scope of the invention process.Any those of ordinary skill in the art, promptly every when doing a little improvement in not breaking away from invention scope of the present invention according to the equal improvement that the present invention did, should be invention scope of the present invention and contain.
Claims (8)
1. the spiral deslagging device of a biomass boiler, it comprises rotating shaft and cylindrical shell, described rotating shaft is installed in the described cylindrical shell, be arranged with helical blade in the described rotating shaft, described cylindrical shell is provided with slag inlet and slag notch, the slag inlet of described cylindrical shell is connected with the burner hearth of biomass boiler and communicates, wherein, described spiral deslagging device also comprises control module and level-sensing device, described level-sensing device is arranged in the described cylindrical shell, described control module respectively with described level-sensing device, rotating shaft, cylindrical shell connects, and with the signal according to described level-sensing device, controls slag inlet on the rotation of described rotating shaft and the described cylindrical shell, the opening and closing of slag notch.
2. spiral deslagging device as claimed in claim 1 is characterized in that, adopts reciprocating fire grate in the described burner hearth, and described cylindrical shell is installed on back of furnace row, and described level-sensing device is arranged on the front upper place in the described cylindrical shell.
3. spiral deslagging device as claimed in claim 1, it is characterized in that, described slag notch is arranged on the lower front of described cylindrical shell, after described helical blade before described slag notch and the rotating shaft to angle be acute angle, the described helical blade behind the described slag notch and the angle of rotating shaft forward direction are acute angle.
4. spiral deslagging device as claimed in claim 3 is characterized in that described cylindrical shell is obliquely installed to the front lower place, and described level-sensing device is installed in the top of slag notch in the described cylindrical shell.
5. spiral deslagging device as claimed in claim 4 is characterized in that, described level-sensing device is determined according to the gradient of described cylindrical shell apart from the height of slag notch.
6. as the described spiral deslagging device of one of claim 1 to 5, it is characterized in that described material level is counted the blocking rotary type level-sensing device.
7. as the described spiral deslagging device of one of claim 1 to 5, it is characterized in that the helical blade at slag notch rear is arranged with slag bucket in described cylindrical shell.
8. spiral deslagging device as claimed in claim 7 is characterized in that, the similar V-shaped groove shape of described slag bucket, and its bottom is near helical blade, and the two side extends upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195922 CN101956989A (en) | 2010-06-09 | 2010-06-09 | Spiral deslagging device of biomass boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195922 CN101956989A (en) | 2010-06-09 | 2010-06-09 | Spiral deslagging device of biomass boiler |
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| Publication Number | Publication Date |
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| CN101956989A true CN101956989A (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010195922 Pending CN101956989A (en) | 2010-06-09 | 2010-06-09 | Spiral deslagging device of biomass boiler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567422A (en) * | 2015-01-04 | 2015-04-29 | 张�诚 | Spiral unloading device and spiral unloading machine with same |
| CN105402720A (en) * | 2015-11-12 | 2016-03-16 | 广西诚顺节能环保科技有限公司 | Biomass gasification combustion environment-friendly boiler |
| CN110937576A (en) * | 2019-12-22 | 2020-03-31 | 洛阳氟钾科技股份公司 | Production equipment for preparing hydrogen fluoride and use method thereof |
| CN112574765A (en) * | 2019-09-30 | 2021-03-30 | 招远市汇潮新能源科技有限公司 | Material level control method and device for cracking equipment and cracking equipment |
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| CN201363740Y (en) * | 2009-06-24 | 2009-12-16 | 山东电力工程咨询院有限公司 | Novel boiler bottom slag delivery device |
| CN101608795A (en) * | 2008-11-20 | 2009-12-23 | 无锡锡东能源科技有限公司 | A kind of modified water-cooling spiral tapping machine |
| CN201748450U (en) * | 2010-06-09 | 2011-02-16 | 广州迪森热能技术股份有限公司 | Spiral deslagging device of biomass boiler |
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2010
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Patent Citations (6)
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| CN2141415Y (en) * | 1992-11-16 | 1993-09-01 | 李令义 | Screw conveyer |
| CN2439607Y (en) * | 2000-08-15 | 2001-07-18 | 高龙辉 | Machinization coal reflection stove |
| CN2639261Y (en) * | 2003-08-18 | 2004-09-08 | 杨林江 | Continuous dynamic material metering device |
| CN101608795A (en) * | 2008-11-20 | 2009-12-23 | 无锡锡东能源科技有限公司 | A kind of modified water-cooling spiral tapping machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567422A (en) * | 2015-01-04 | 2015-04-29 | 张�诚 | Spiral unloading device and spiral unloading machine with same |
| CN105402720A (en) * | 2015-11-12 | 2016-03-16 | 广西诚顺节能环保科技有限公司 | Biomass gasification combustion environment-friendly boiler |
| CN112574765A (en) * | 2019-09-30 | 2021-03-30 | 招远市汇潮新能源科技有限公司 | Material level control method and device for cracking equipment and cracking equipment |
| CN112574765B (en) * | 2019-09-30 | 2021-09-10 | 招远市汇潮新能源科技有限公司 | Material level control method and device for cracking equipment and cracking equipment |
| CN110937576A (en) * | 2019-12-22 | 2020-03-31 | 洛阳氟钾科技股份公司 | Production equipment for preparing hydrogen fluoride and use method thereof |
| CN110937576B (en) * | 2019-12-22 | 2024-03-29 | 洛阳氟钾科技股份公司 | Production equipment for preparing hydrogen fluoride and application method thereof |
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Application publication date: 20110126 |