CN107651327A - A kind of boiler coal bunker blocking prevention device - Google Patents
A kind of boiler coal bunker blocking prevention device Download PDFInfo
- Publication number
- CN107651327A CN107651327A CN201710984414.6A CN201710984414A CN107651327A CN 107651327 A CN107651327 A CN 107651327A CN 201710984414 A CN201710984414 A CN 201710984414A CN 107651327 A CN107651327 A CN 107651327A
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission shaft
- coal bunker
- coal
- feed roller
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 52
- 230000000903 blocking effect Effects 0.000 title claims abstract description 16
- 230000002265 prevention Effects 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 241000273930 Brevoortia tyrannus Species 0.000 description 16
- 239000000463 material Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
To solve run coal bin blockage problem, the present invention provides a kind of boiler coal bunker blocking prevention device, it is characterised in that：Including being fed roller, power transmission shaft, motor, the feed roller is arranged on the contraction flow region position of 1 meter of run coal bin diameter below, and driven by motor by power transmission shaft, the both ends of power transmission shaft pass through corresponding hole on coal bunker, feed roller rotates and then stirred the raw coal that top blocks under the drive of power transmission shaft, play a part of dredging, further, the blade of roller is fed by way of dislocation not in one plane, it is retracted when not working by the controller being connected in power transmission shaft in power transmission shaft, easily it can so be detached by corresponding hole on coal bunker, and then reduce the interference to raw coal feeding process.
Description
Technical field
The invention belongs to boiler raw coal anti-blocking technology field, more particularly to a kind of boiler coal bunker blocking prevention device.
Background technology
The blocking of mouth under boiler run coal bin, annoyings coal-burning power plant for a long time, and serious threat production safety and production
Efficiency.In general, run coal bin structure upper is in cylinder, and bottom is in hyperbolic line-cone or other up big and down small shapes.On
Mouth is big, lower mouth is small, and material relies on own wt and fallen into from top to bottom in boiler combustion chamber.The material of whereabouts is due in conical vessel
Interior flowing, so more flow down, area is smaller, is formed bigger extruding in itself to material.Its extruding is delivered to bulkhead
On, external force and probability that fines is attached on bulkhead are increased, and Flow of Goods and Materials direction is from bulkhead to center Xia Kou directions
Flowing, material will not form big wash away to bulkhead.Therefore, under nature, tiny material is easily adhered on bulkhead, material
Coefficient of friction further increases after attached wall, and attached wall material can be more long-pending thicker.Four right angle coefficient of friction in square taper storehouse are more presented
Above-mentioned phenomenon, this is the main reason for resulting in blockage.
As can be seen here, the basic reason for causing coal bunker blocking is that mouth is small under run coal bin.And due to natural, coal bunker
Up big and down small structure is the basic ideas for solving charging stability.Generally, by taking 300MW units as an example, mouth under run coal bin
Diameter is mostly 629mm, and for flow area less than 0.3 square metre, some makes flow area further along with liner plate and dredging facility
Reduce, more aggravated the probability blocked.
According to the difference of raw coal breediness, it is more that the shape after blocking is roughly divided into arcuation, parabolic shape, arcature shape etc.
Kind.The position of blocking, majority are less than at 1 meter within coal gate 1.5m-3m suitable for reading, that is, in lower port diameter.At this
In the range of somewhere start to bond thin layer material, increasing friction force after bonding, be then stepped up thickness with radially extending towards axial direction
Degree, ultimately forms different shape and blocks, cause to stop.When coal water content is larger, the longer situation of run coal bin down time
Under, easily cause the phenomenon of hardened hardening of the coal face along bulkhead and fluffy coal so that middle part or top are taken arch and blocked.Such case exists
The rainy season in Jiangsu and Zhejiang Provinces area is especially universal, and in the case where that can not be raw coal dehumidifying, how to prevent from blocking just turns into a difficulty
Topic.By taking 4 × 300MW power plant as an example, per tour employs 4 casual labour to carry out block clearing, and because labor intensity is big, the first quarter gets off will
Several people are changed, get off to put within three months man-hour, oil plant and because loss caused by idle running, equivalent generated energy can reach several hundred million degree unexpectedly
As many as.
Existing clogging-preventing measures have reciprocating dredging machine, air bubble, oscillatory type, rotary etc..It is reciprocating to be divided into fluid pressure type
With mechanical two kinds, due to using bar structure so that lower mouth flow area reduces and obstructed, can be aggravated when equipment does not work
Block, it is therefore desirable to continuous work, cause the life-span very short, without promotional value.Air bubble is adapted to spacious environment, otherwise can make
Into noise pollution, and only minimum position is worked, active area is small.Oscillatory type can aggravate between raw coal in some cases
Extruding makes blocking more very, and higher to coal bunker power demand.It can rotatably play a role, but easily cause stall, and
Run coal bin will keep low coal position to run, and otherwise stall is serious.
The content of the invention
In order to solve the problems, such as prior art coal bunker blocking, it is an object of the present invention to use a kind of boiler coal bunker simple in construction
Anti-block apparatus, with overcome prior art to prevent blocking of coal bunker effect is poor, potential safety hazard is big, cost is high the defects of.
To achieve the above object, the present invention provides a kind of boiler coal bunker roll-type anti-block apparatus, it is characterised in that：Including feed
Roller, power transmission shaft, motor, the feed roller are arranged on the contraction flow region position of 1 meter of run coal bin diameter below, and by motor
Driven by power transmission shaft.The both ends of power transmission shaft pass through corresponding hole on coal bunker.Feed roller rotates under the drive of power transmission shaft
And then the raw coal that top blocks is stirred, play a part of dredging.
Further, the blade of roller is fed by way of dislocation not in one plane, by being connected to when not working
In controller retraction power transmission shaft in power transmission shaft, easily it can so be detached by corresponding hole on coal bunker, and then reduction pair
The interference of raw coal feeding process.
Brief description of the drawings
Fig. 1 is the structural representation of the feed roller of the present invention.
Fig. 2 is the overall structure diagram of the present invention.
Wherein：1- coal bunkers, 2- are fed the blade of roller, 3- power transmission shafts, 4- motor.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Referring to Fig. 1, Fig. 2 a kind of boiler coal bunker blocking prevention device, it is characterised in that：Including feed roller, power transmission shaft 3 and electricity
Motivation 4, the feed roller is arranged on the diameter below of run coal bin 1 and is less than 1 meter of contraction flow region position, and passes through biography by motor 4
Moving axis 3 drives.The both ends of power transmission shaft pass through corresponding hole on coal bunker 1.Feed roller rotates under the drive of power transmission shaft 3, gives
The blade 2 of roller tube stirs the raw coal that top blocks in rotation, plays a part of dredging.To make this boiler coal bunker blocking prevention device
When not working, easily corresponding hole detaches from coal bunker 1, is fed the blade 2 of roller by way of dislocation not at one
In plane, it can be retracted when not working by the controller being connected in power transmission shaft 3 in power transmission shaft 3, and then reduce and raw coal is given
The interference of material process.
Claims (2)
- A kind of 1. boiler coal bunker blocking prevention device, it is characterised in that：Including feed roller, power transmission shaft, motor, the feed roller By power transmission shaft driven installed in the contraction flow region position of 1 meter of run coal bin diameter below and by motor, the both ends of power transmission shaft pass through Symmetrical hole on coal bunker, the edge for being fed roller are symmetrically arranged with blade, described blade outboard one end to feed roller The distance in axle center is less than the coal bunker inside radius of feed roller axle center position.
- A kind of 2. boiler coal bunker blocking prevention device as claimed in claim 1, it is characterised in that：The blade of the feed roller passes through The mode of dislocation in one plane, power transmission shaft is not retracted when not working by the controller control being connected in the power transmission shaft It is interior and coal bunker is detached by hole symmetrical on the coal bunker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984414.6A CN107651327A (en) | 2017-10-20 | 2017-10-20 | A kind of boiler coal bunker blocking prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984414.6A CN107651327A (en) | 2017-10-20 | 2017-10-20 | A kind of boiler coal bunker blocking prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107651327A true CN107651327A (en) | 2018-02-02 |
Family
ID=61119266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710984414.6A Pending CN107651327A (en) | 2017-10-20 | 2017-10-20 | A kind of boiler coal bunker blocking prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107651327A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371702A (en) * | 2019-06-24 | 2019-10-25 | 盐城市华科电子有限公司 | A kind of anti-blocking feed hopper of insulation board production convenient for controlling blanking velocity |
| CN113041971A (en) * | 2021-03-24 | 2021-06-29 | 青岛科技大学 | Anti-blocking microchannel reactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202481601U (en) * | 2012-03-06 | 2012-10-10 | 华北电力大学 | Rotary raw coal blocking-dredging machine |
| CN105346877A (en) * | 2015-12-02 | 2016-02-24 | 苏州依斯倍环保装备科技有限公司 | Flocculant feeding device |
| CN105836324A (en) * | 2016-05-17 | 2016-08-10 | 大唐环境产业集团股份有限公司 | Cylindrical anti-blocking raw coal bin |
| CN205525989U (en) * | 2015-11-20 | 2016-08-31 | 陕西科飞电器有限责任公司 | Wedge anti -blocking fill |
| CN205952751U (en) * | 2016-07-07 | 2017-02-15 | 山东省环能设计院股份有限公司 | Stifled device is prevented to coal slime |
-
2017
- 2017-10-20 CN CN201710984414.6A patent/CN107651327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202481601U (en) * | 2012-03-06 | 2012-10-10 | 华北电力大学 | Rotary raw coal blocking-dredging machine |
| CN205525989U (en) * | 2015-11-20 | 2016-08-31 | 陕西科飞电器有限责任公司 | Wedge anti -blocking fill |
| CN105346877A (en) * | 2015-12-02 | 2016-02-24 | 苏州依斯倍环保装备科技有限公司 | Flocculant feeding device |
| CN105836324A (en) * | 2016-05-17 | 2016-08-10 | 大唐环境产业集团股份有限公司 | Cylindrical anti-blocking raw coal bin |
| CN205952751U (en) * | 2016-07-07 | 2017-02-15 | 山东省环能设计院股份有限公司 | Stifled device is prevented to coal slime |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371702A (en) * | 2019-06-24 | 2019-10-25 | 盐城市华科电子有限公司 | A kind of anti-blocking feed hopper of insulation board production convenient for controlling blanking velocity |
| CN110371702B (en) * | 2019-06-24 | 2021-03-12 | 盐城市华科电子有限公司 | Insulation board production is with preventing stifled feeder hopper convenient to control unloading speed |
| CN113041971A (en) * | 2021-03-24 | 2021-06-29 | 青岛科技大学 | Anti-blocking microchannel reactor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |
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| RJ01 | Rejection of invention patent application after publication |