CN203501204U - Granular material spiral scattering and feeding device for boiler - Google Patents
Granular material spiral scattering and feeding device for boiler Download PDFInfo
- Publication number
- CN203501204U CN203501204U CN201320724590.3U CN201320724590U CN203501204U CN 203501204 U CN203501204 U CN 203501204U CN 201320724590 U CN201320724590 U CN 201320724590U CN 203501204 U CN203501204 U CN 203501204U
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- boiler
- feeding device
- particulate material
- material spiral
- scattering
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Abstract
The utility model discloses a granular material spiral scattering and feeding device for a boiler. The granular material spiral scattering and feeding device solves the problems that due to the fact that an existing feeding device is uneven in feeding, the consumption of granular materials is large, and heat efficiency is low. According to the technical scheme, the granular material spiral scattering and feeding device comprises a feeding device and a feeding pipe. A scattering device corresponding to the feeding device is installed inside the feeding pipe and comprises a horizontally-arranged scattering wheel corresponding to the feeding device. The axle of the scattering wheel is connected with a driving device through a transmission mechanism. The granular material spiral scattering and feeding device is simple in structure, easy and convenient to control and even in granular material scattering, the combustion efficiency of the boiler is improved, and the combustion cost is saved.
Description
Technical field
The utility model relates to a kind of pay-off, and a kind of boiler is shed pay-off with particulate material spiral specifically.
Background technology
Industrial Boiler occupies critical role in national economy, and the every aspect of industrial production and people's lives all be unable to do without steam and hot water.Because Industrial Boiler is all to take fire coal as main for these years, so Industrial Boiler is also high-energy equipment, and the sulfide of discharge, nitride are to cause one of air-polluting reason.Therefore many places forbid that coal-burning boiler uses.Biomass granular fuel boiler development is very fast.
Automatic charging is to be all generally poured in hopper with screw feeding machine (being commonly called as screw feeder) granular fuel, utilizes the rotation of screw feeder to push material to oblique feed pipe on boiler, by certainly flumping to hearth combustion of particulate material.Because fuel is by from flumping to burner hearth, will be deposited in the side burning (as shown in Figures 1 and 2) on the grate furnace of burner hearth below feed pipe, fuel is too thick, ventilates just bad, burns insufficient, has just caused waste.Secondly furnace flame is inhomogeneous, and each parts are heated inconsistent, and heating surface can not fully be heated, and also just causes the thermal efficiency not reach designing requirement.Although biomass granule fuel is regenerative resource, resource is also the waste that limited, simple screw feeding machine has not only caused resource.And increased production cost.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, provide a kind of simple in structure, control easy, particulate material is shed evenly, the boiler that improves boiler combustion efficiency, fuel saving cost is shed pay-off with particulate material spiral.
Technical scheme comprises feeding device and feed pipe, the scattering mechanism corresponding with feeding device is housed in described feed pipe, described scattering mechanism comprises the horizontally disposed spreading reel corresponding with feeding device, and the wheel beam warp transmission mechanism of described spreading reel is connected with drive unit.
On described spreading reel, be radially evenly provided with many minutes muscles.
The diameter of described spreading reel is less than the caliber 1-3cm of feed pipe
The wheel shaft of described spreading reel is connected with the driving shaft of conveying device by belt or gear drive.
Negative pulley wheel on the wheel shaft of described spreading reel or the diameter of driven gear are less than drive pulley on the driving shaft of conveying device or the diameter of driving gear.
Inventor conducts in-depth research the feeding manner of boiler, in any case find to change charging aperture, capital is because the problem of particle gravity, be difficult to realize uniform distribution, if wanting particulate material to overcome gravity falls on distant fire grate, must apply external force, and simple motive force still can make particulate material concentrate on the fire grate of certain, and be difficult to realize even diffusion.Inventor is for the problems referred to above, designed a kind of spreading reel, particulate material is sent on spreading reel, utilize the High Rotation Speed of spreading reel that particulate material is shed in along charging aperture to boiler under the effect of centrifugal force, this strength can be good at overcoming the gravity of particulate material self, and this centrifugal force can make particulate material evenly spread, part particulate material can evenly be sprinkling upon on the fire grate of boiler, also have part particulate material when being shed the fire grate superjacent air space of burner hearth just by ignition combustion, be equivalent to Boiling Combustion, under Boiling Combustion state, fuel can fully burn, improve fuel efficiency.
Further, on spreading reel, be disposed radially a minute muscle, spreading reel is separated into storage tank one by one, be convenient to particulate material collection, transmit and shed, the diameter of described spreading reel should be less than feed pipe caliber, and making spreading reel can in pipe, take the axle center of wheel shaft is center of circle fast rotational, throw around loose wheel and the space between feed pipe as required fill insulant material to avoid particulate material to be thrown in space when spreading reel rotates, and for burner hearth insulation, reduce heat energy loss.The diameter of preferred described spreading reel is less than the caliber 1-3cm of feed pipe.
Described spreading reel is driven by its wheel shaft, described wheel shaft can be driven by drive unit by transmission mechanism, further, described drive unit can be the driving mechanism designing separately, also can share a drive unit with feeding device, as the driving shaft of the drive unit of the wheel shaft of spreading reel and feeding device coupled together by transmission mechanism (as belt or gear), the advantage of design is to have saved other a set of driving mechanism on the one hand like this, during feeding device work simultaneously, can synchronously drive spreading reel to rotate, both can collaborative work.Because spreading reel need to be realized High Rotation Speed, and the rotating speed of the driving shaft that the motor of feed arrangement is drawn is lower, for addressing this problem, the diameter ratio of both drive pulleys of adjustable connection and negative pulley wheel (or driving gear and driven gear), make spreading reel realize High Rotation Speed, without increasing separately power.Described feeding device can be for existing various feed mechanisms be as screw feeding machine etc.
The utility model structure is very simple, simple to operate, can realize and evenly shed graininess particulate material, particulate material is distributed on fire grate more even, abundant at stove chamber inner combustion, furnace flame is more even, each several part is subject to all consistent, and the thermal efficiency meets design requirement, can fuel saving compared with traditional feeding manner more than 15%.The utility model is applicable to coordinating with various feeding devices, for carry particulate material in boiler.
Accompanying drawing explanation
Fig. 1 is the feed state schematic diagram in conventional boiler.
Fig. 2 is that A in Fig. 1 is to view.
Fig. 3 is this practical new construction schematic diagram.
Fig. 4 is the front view of spreading reel.
Fig. 5 is the B-B cutaway view of Fig. 4.
Fig. 6 is for being used the feed state schematic diagram after the utility model device.
Fig. 7 is that the C of Fig. 6 is to view.
Wherein, 1-feed pipe, the loose wheel of 2-throwing, 3-wheel shaft, 4-divide muscle, 5-screw feeding machine, 6-drive pulley, 7-belt, 8-negative pulley wheel, 9-burner hearth, 10-fire grate, 11-driving shaft, 12-motor.13-hopper.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further explained to explanation:
With reference to Fig. 3, in the utility model, feeding device is screw feeding machine, described screw feeding machine 5 is corresponding with feed pipe 1, biological particles material (abbreviation particulate material) can be sent in feed pipe 1 by screw feeding machine 5, in described feed pipe 1, be horizontally disposed with spreading reel 2, the wheel shaft 3 of described spreading reel 2 passes feed pipe 1 and is connected with the driving shaft 11 of screw feeding machine 5 by transmission mechanism.In the utility model, adopt belt transmission, described transmission mechanism comprises drive pulley on the driving shaft 11 that is arranged on screw feeding machine 56 and is arranged on the negative pulley wheel 8 on the wheel shaft 3 of spreading reel 2, and the belt 7 that connects drive pulley 6 and negative pulley wheel 8.The diameter of described negative pulley wheel 8 is less than drive pulley 6.Described driving shaft 11 is driven and is rotated by motor 12.Referring to Fig. 3 and Fig. 4, on described spreading reel 2, be radially evenly provided with many minutes muscles 4, spreading reel 2 is separated into a plurality of fan-shaped storage tanks, charging for gathering screw feeder 5, and utilize the revolving force of spreading reel 2, charging is delivered to the position of feed pipe 1 mouth of pipe, then to even centrifugal shedding in burner hearth.The diameter of described spreading reel 2 is less than the caliber 1-3cm of feed pipe 1, and gap can fill insulant material.
Operation principle:
Referring to Fig. 3, Fig. 6 and Fig. 7, screw feeding machine 5 is delivered to the particulate material in hopper 13 entrance of feed pipe 1, and fall on the spreading reel 2 of corresponding High Rotation Speed, the motor 12 of screw feeding machine 5 drives driving shaft 11 rotations, when making screw feeding machine 5 charging work, also through drive pulley 6, belt 7 and negative pulley wheel 8 drive wheel shaft 3 to rotate, make spreading reel 2 High Rotation Speeds, particulate material on spreading reel 2 is loose to the interior even throwing of burner hearth 9 by the outlet of feed pipe 1 along spreading reel 2 edges under the centrifugal action rotating at a high speed, part particulate material is being shed when interior to the burner hearth 9 above fire grate 10 just by ignition combustion, remainder evenly falls on fire grate 10 and burns, particulate material covers evenly on fire grate 10, there will not be the phenomenon of piling up at fire grate 10 feed sides, improved the efficiency of combustion of boiler, reduced the consumption of particulate material.
Claims (5)
1. a boiler is shed pay-off with particulate material spiral, comprise feeding device and feed pipe, it is characterized in that, the scattering mechanism corresponding with feeding device is housed in described feed pipe, described scattering mechanism comprises the horizontally disposed spreading reel corresponding with feeding device, and the wheel beam warp transmission mechanism of described spreading reel is connected with drive unit.
2. boiler as claimed in claim 1 is shed pay-off with particulate material spiral, it is characterized in that, is radially evenly provided with many minutes muscles on described spreading reel.
3. boiler as claimed in claim 1 is shed pay-off with particulate material spiral, it is characterized in that, the diameter of described spreading reel is less than the caliber 1-3cm of feed pipe.
4. the boiler as described in claim 1-3 any one is shed pay-off with particulate material spiral, it is characterized in that, the wheel shaft of described spreading reel is connected with the driving shaft of conveying device by belt or gear drive.
5. boiler as claimed in claim 4 is shed pay-off with particulate material spiral, it is characterized in that, the negative pulley wheel on the wheel shaft of described spreading reel or the diameter of driven gear are less than drive pulley on the driving shaft of conveying device or the diameter of driving gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724590.3U CN203501204U (en) | 2013-11-15 | 2013-11-15 | Granular material spiral scattering and feeding device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724590.3U CN203501204U (en) | 2013-11-15 | 2013-11-15 | Granular material spiral scattering and feeding device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501204U true CN203501204U (en) | 2014-03-26 |
Family
ID=50332180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724590.3U Expired - Fee Related CN203501204U (en) | 2013-11-15 | 2013-11-15 | Granular material spiral scattering and feeding device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203501204U (en) |
-
2013
- 2013-11-15 CN CN201320724590.3U patent/CN203501204U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20161115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |