CN205807399U - A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable - Google Patents
A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable Download PDFInfo
- Publication number
- CN205807399U CN205807399U CN201620571443.0U CN201620571443U CN205807399U CN 205807399 U CN205807399 U CN 205807399U CN 201620571443 U CN201620571443 U CN 201620571443U CN 205807399 U CN205807399 U CN 205807399U
- Authority
- CN
- China
- Prior art keywords
- adjustable
- air
- pulverized coal
- air channel
- baffle plate
- 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.)
- Expired - Fee Related
Links
Abstract
The pulverized coal concentrator structure of a kind of inside and outside deep or light real-time, tunable, is arranged in the outlet section in air channel of burner, mainly includes adjustable pulverized coal baffle mechanism and an adjustable air-duct clapboard；Adjustable pulverized coal baffle mechanism is arranged in the upstream of ducting outlet section of burner, including some groups of concentration baffle combination circumferentially, is made up of baffle plate fixed support, rotatable abrasionproof baffle plate, two connecting rods, slip collar and adjusting yoke；The anglec of rotation of controllable register is carried out, to change breeze airflow by the direction of motion after concentration baffle plate, it is achieved breeze airflow is in the radial direction concentration difference in an air channel by the axially-movable of adjusting yoke；An adjustable air channel baffle arrangement, in the downstream of ducting outlet section of burner, forms including stationary barrier, adjustable partition board and dividing plate adjusting yoke；Regulated the length that overlaps of adjustable partition board and stationary barrier by the axially-movable of dividing plate adjusting yoke, change the maintenance position of the radially coal powder density difference of an air channel after Pulverized Coal Concentration, it is achieved Pulverized Coal Concentration effect is in the regulation of burner outlet.
Description
Technical field
This utility model belongs to coal powder burning technology field, is specifically related to deep or light distribution inside and outside a kind of primary wind and powder and in real time may be used
The pulverized coal concentrator adjusted.
Background technology
Pulverized coal bias combustion technology is widely used in power boiler burning field at present.Dense-dilute burner combustion technology can solve to optimize
The steady combustion of coal dust, low NOxEmission performance.Being limited to First air and transport the concentration restriction of coal dust, bias combustion is typically by near combustion
Normal coal powder density localized rich near burner nozzle that the concentrator structure of burner spout transports at primary air piping with realization
Light separation.Pulverized coal concentrator utilizes the coal dust such as gravity, centrifugal force to compare the inertia force that air is bigger at present, uses certain machinery
Structure (such as block, shutter etc.) concentrates breeze airflow.But the adjustment of coal powder density, bias pulverized coal distribution characteristics at concentrator
Just it is difficult to after being installed to burner control in real time.Even if Pulverized Coal Concentration rate can be adjusted by some movable limit block, but cannot
When changing the holistic distribution characteristics of bias pulverized coal stream, such as turbulent burner radially bias combustion, concentrator cannot make First air
Dense outer light and outer dense interior light mutual switching in powder.The power boiler burning system complicated for China's ature of coal, load is changeable, along with
Improving constantly efficiency of combustion and discharge standard requirement, the adjustability of the core component concentrator of dense-dilute burner combustion technology is the most corresponding
There is higher demand.
Summary of the invention
For solving defect present in above-mentioned prior art, the purpose of this utility model is to provide a kind of inside and outside deep or light reality
Time adjustable pulverized coal concentrator structure, the coal powder density of two strands of air-flows of coal powder light-dark in an air channel can not only be realized, moreover it is possible to
Switching coal powder density radial distribution in air channel, dense outer light and outer dense interior light real-time switching in i.e. realizing；This concentrator will
It is obviously improved the real-time adjustability of Pulverized Coal Concentration, to adapt to coal dust firing operating mode complicated and changeable and growing high-efficiency cleaning
Combustion requirements.
For reaching above-mentioned purpose, this utility model be the technical scheme is that
A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable, formed including central air hose 1 and primary air piping
Secondary air channel 3, is disposed with some groups of adjustable pulverized coal baffle mechanisms 4, described adjustable pulverized coal baffle plate machine in described air channel 3 inner circumferential
Structure 4 comprises the fixed support 402 being fixed on primary air piping inwall and fixed support 402 hinged rotatable abrasionproof gear
Slip collar 404, chain connection rotatable abrasionproof baffle plate 401 and slip collar on plate 401, centrally disposed airduct 1 outer wall
Two connecting rods 403 of 404, described slip collar 404 is connected on adjusting yoke 5, by moving axially of adjusting yoke 5, successively
Drive slip collar 404, two connecting rod 403 and rotatable abrasionproof baffle plate 401, change rotatable abrasionproof baffle plate 401 in an air channel
Interior inclination angleSize, thus affect breeze airflow at coal powder density after adjustable pulverized coal baffle mechanism in an air channel
Reallocation；WhenIt is dense that primary wind and powder forms outer dense interior light First air coal dust under adjustable pulverized coal baffle mechanism effect
Degree distribution；WhenPrimary wind and powder forms interior dense outer light coal powder density distribution,Change to affect coal dust dense simultaneously
Spend the rich-lean ratio in First air outlet, thus it is adjustable to deep or light mutually switching an air channel central diameter to realize coal powder density.
The described rotatable abrasionproof baffle plate 401 inclination angle in an air channel 3Range of accommodation be 0～180 °.
Be provided with an adjustable air-duct clapboard 2 in exit, a described air channel 3, a described adjustable air-duct clapboard 2 wraps
Including stationary barrier 201 and adjustable partition board 202, the two contact portion leaves cooperation draw-in groove；The regulation of adjustable partition board 202 connecting partition is drawn
Bar 6 one end, dividing plate adjusting yoke 6 other end stretches out burner；By moving axially of dividing plate adjusting yoke 6, drive adjustable every
Moving axially of plate 202, thus change the length of First air dividing plate, affect the First air dividing plate coal dust a ducting outlet section
Concentration concentrates the original position maintained.
Described rotatable abrasionproof baffle plate 401 scribble anti-abrasive coatings towards the side that breeze airflow washes away, increase baffle plate
Ruggedness.
Compared with prior art, this utility model has the advantage that
1, this utility model passes through adjustable pulverized coal baffle mechanism 4, can realize burner one according to coal and load variations
The deep or light air-flow concentration of secondary wind powder continuously adjusts and deep or light distribution switching, to adapt to combustion conditions change demand.By axially moving
Dynamic adjusting yoke 5, drives slip collar 404 and the movement of two connecting rods 403, thus changes along air channel respectively may be used circumferentially
Adjust coal dust baffle mechanism inclination angleWhen adjusting yoke 5 moves to the opposite direction of burner outlet, rotatable abrasionproof baffle plate 401 inclines
AngleReduce；When adjusting yoke 5 moves to burner outlet direction, rotatable abrasionproof baffle plate 401 inclination angleIncrease.WhenPrimary wind and powder air-flow can form outer dense interior light breeze airflow under adjustable pulverized coal baffle mechanism effect in downstream,
And remain to burner outlet by First air dividing plate.Within the range along withIncrease, First air air-flow has more
Coal dust is guided the outside to an air channel 3 by baffle plate, and the cocnentration factor of outer dense interior thin powdered coal air-flow increases therewith.WhenPrimary wind and powder air-flow can form interior dense outer light coal dust gas under adjustable pulverized coal baffle mechanism effect in downstream
Stream, and remain to burner outlet by First air dividing plate.Within the range along withIncrease, the coal dust in First air air-flow
Guided to the inner side in an air channel by baffle plate, but coal dust can be therewith near primary air piping center, interior dense outer thin powdered coal air-flow dense
Contracting ratio reduces therewith.
2, this utility model uses adjustable First air dividing plate can be adjusted axially mode, and conventional First air dividing plate of forgoing is fixed on
The structure of ducting outlet.Adjustable First air dividing plate is made up of stationary barrier 201 and adjustable partition board 202, and the two is by linking
The draw-in groove that place reserves realizes the cooperation of axial location.At adjustable partition board 202, it is fixed with adjusting yoke 6, is adjusted by mobile dividing plate
The axial location of joint pull bar 6, thus it is possible to vary the length that overlaps of adjustable partition board 202 and stationary barrier 201, thus change dividing plate one
Action length in secondary air channel.Such as, when dividing plate adjusting yoke 6 moves along burner outlet opposite direction, adjustable First air every
Plate action length in an air channel increases, and does sth. in advance the maintenance effect of the air-coal separating effect of breeze airflow, protects further
Card air-coal separating effect；When dividing plate adjusting yoke 6 moves along burner outlet direction, adjustable First air dividing plate is in an air channel
Action length shorten, the maintenance effect of the air-coal separating effect of breeze airflow is postponed, thus weakens air-coal separating effect.Can
Adjusting First air dividing plate can better adapt to the Actual combustion operating mode demand to air-coal separating effect, the burning promoting burner is adjusted
Whole performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pulverized coal concentrator structure of deep or light real-time, tunable inside and outside this utility model.
Fig. 2-1 is the enlarged drawing of adjustable pulverized coal baffle mechanism in Fig. 1.
Fig. 2-2 is the enlarged drawing of an adjustable air-duct clapboard in Fig. 1.
Fig. 3 is that coal powder density regulation realizes schematic diagram (including angle change and the septum plate length change of coal dust baffle plate).
Fig. 4-1 is the schematic three dimensional views of adjustable pulverized coal concentrator.
Fig. 4-2 is the right view of adjustable pulverized coal concentrator.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 1 and Fig. 2-1, the pulverized coal concentrator structure of a kind of inside and outside deep or light real-time, tunable of this utility model, it is suitable for
In comprising in the burner in central air hose 1 and an air channel 3, it is arranged in an air channel 3 interior away from burner outlet certain distance
Local.Adjustable pulverized coal concentrator, specifically includes adjustable pulverized coal baffle mechanism 4, adjustable First air dividing plate 2, adjusting yoke 5 and dividing plate
Adjusting yoke 6.Adjustable pulverized coal baffle mechanism 4 is many groups is arranged circumferentially in the baffle combination in an air channel, including fixed support
402, rotatable abrasionproof baffle plate 401, two connecting rod 403 and slip collar 404.Fixed support 402 leads to rotatable abrasionproof baffle plate 401
Crossing chain connection, rotatable abrasionproof baffle plate 401 can rotate around fixed support 402.Rotatable abrasionproof baffle plate 401 and slip collar
By two connecting rod 403 chain connections between 404.Slip collar 404 connects coal dust baffle plate adjusting yoke 5.Therefore pull bar 5 is axial
Movement can pass sequentially through slip collar 404, two connecting rod 403 and form rotatable abrasionproof baffle plate 401 turning around fixed support 402
Dynamic.
As shown in Fig. 2-2, be arranged in First air outlet an adjustable air-duct clapboard 2 by stationary barrier 201 and adjustable every
Plate 202 forms, and the two is cooperated by the draw-in groove of indwelling in advance.Adjustable partition board 202 one end connects dividing plate adjusting yoke 6,
First air dividing plate length in an air channel and operating distance can be changed by moving axially of dividing plate adjusting yoke 6.
Fig. 3 is the Simplified Three-dimensional schematic diagram of adjustable pulverized coal concentrator, comprise respectively dense outer light, coal dust in making coal dust outer the denseest in
3 kinds of adjustment state that light and First air spacer function length changes.
Fig. 4-1 and Fig. 4-2 is the three-dimensional front view arranged in air channel of burner of this pulverized coal concentrator and right view.
Operation principle of the present utility model is: due to adjustable pulverized coal baffle mechanism and the effect of an adjustable air-duct clapboard,
Making an air channel be divided into an interior air channel and an outer air channel, primary wind and powder air-flow is in adjustable pulverized coal baffle mechanism guiding function
Under, pulverized coal particle can be assembled to the inner side of primary air piping or outside, forms the coal dust radially concentration difference of local, the most adjustable once
This radial direction concentration difference can be maintained burner outlet by wind dividing plate, forms deep or light two strands of breeze airflows and enters hearth combustion.Can
Rotate abrasionproof baffle plate and can according to circumstances change baffle plate inclination angleThus change the rotatable abrasionproof baffle plate channeling direction to coal dust
With the degree of guiding.An adjustable air-duct clapboard moves axially change dividing plate operating distance after concentrator baffle plate by pull bar,
Also can to a certain degree change the opportunity of bias pulverized coal air-flow concentrating and separating, affect the coal powder light-dark ratio of burner outlet.Coordinate and adjust
Joint adjustable pulverized coal baffle mechanism and an adjustable air-duct clapboard, can need the dense of real-time optimization breeze airflow according to Actual combustion
Degree distribution, improves the generation of the burning precontamination thing that catches fire, controls and safeguards that the equipment safety in burner hearth inner burner region is steady
Fixed operation.
Claims (4)
1. a pulverized coal concentrator structure for deep or light real-time, tunable inside and outside, formed including central air hose (1) and primary air piping
Secondary air channel (3), it is characterised in that: it is disposed with some groups of adjustable pulverized coal baffle mechanisms (4) in described air channel (3) inner circumferential,
Described adjustable pulverized coal baffle mechanism (4) comprises the fixed support (402) and fixed support being fixed on primary air piping inwall
(402) slip collar (404) on hinged rotatable abrasionproof baffle plate (401), centrally disposed airduct (1) outer wall, hinge
Chain connects rotatable abrasionproof baffle plate (401) and two connecting rods (403) of slip collar (404), and described slip collar (404) is connected to
On adjusting yoke (5), by moving axially of adjusting yoke (5), drive slip collar (404), two connecting rods (403) and can successively
Rotate abrasionproof baffle plate (401), change the rotatable abrasionproof baffle plate (401) inclination angle in an air channelSize, thus affect coal
Powder air-flow in an air channel after adjustable pulverized coal baffle mechanism coal powder density reallocation；WhenPrimary wind and powder
Outer dense interior light concentration of pulverized coal distribution is formed under adjustable pulverized coal baffle mechanism effect；WhenFirst air
Powder forms interior dense outer light coal powder density distribution,Change affect the rich-lean ratio that coal powder density exports at First air simultaneously, thus
Realize coal powder density adjustable to deep or light mutually switching an air channel central diameter.
The pulverized coal concentrator structure of inside and outside deep or light real-time, tunable the most according to claim 1, it is characterised in that: described turn
The dynamic abrasionproof baffle plate (401) inclination angle in an air channel (3)Range of accommodation be 0～180 °.
The pulverized coal concentrator structure of inside and outside deep or light real-time, tunable the most according to claim 1, it is characterised in that: described one
Secondary air channel (3) exit is provided with an adjustable air-duct clapboard (2), and a described adjustable air-duct clapboard (2) includes stationary barrier
(201) and adjustable partition board (202), the two contact portion leaves cooperation draw-in groove；Adjustable partition board (202) connecting partition adjusting yoke
(6) one end, dividing plate adjusting yoke (6) other end stretches out burner；By moving axially of dividing plate adjusting yoke (6), drive can
Adjust moving axially of dividing plate (202), thus change the length of First air dividing plate, affect First air dividing plate a ducting outlet section
Coal powder density concentrate maintain original position.
The pulverized coal concentrator structure of inside and outside deep or light real-time, tunable the most according to claim 1, it is characterised in that: described turn
That moves abrasionproof baffle plate (401) scribbles anti-abrasive coatings towards the side that breeze airflow washes away, and increases the ruggedness of baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571443.0U CN205807399U (en) | 2016-06-13 | 2016-06-13 | A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571443.0U CN205807399U (en) | 2016-06-13 | 2016-06-13 | A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205807399U true CN205807399U (en) | 2016-12-14 |
Family
ID=58143195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620571443.0U Expired - Fee Related CN205807399U (en) | 2016-06-13 | 2016-06-13 | A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205807399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910101A (en) * | 2016-06-13 | 2016-08-31 | 西安西热电站信息技术有限公司 | Pulverized coal concentrator with inner and outer concentration capable of being adjusted in real time |
-
2016
- 2016-06-13 CN CN201620571443.0U patent/CN205807399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910101A (en) * | 2016-06-13 | 2016-08-31 | 西安西热电站信息技术有限公司 | Pulverized coal concentrator with inner and outer concentration capable of being adjusted in real time |
| CN105910101B (en) * | 2016-06-13 | 2018-01-12 | 西安西热电站信息技术有限公司 | A kind of pulverized coal concentrator of inside and outside deep or light real-time, tunable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204026721U (en) | Coal dust classifier and pulverized-coal fired boiler | |
| CN102679337B (en) | Cyclone combustor with adjustable flame shape and mixing strength | |
| CN103953919B (en) | A kind of burnout degree and secondary air regulation device for pulverized-coal fired boiler | |
| CN106194834B (en) | Nested air outlet structure of wind tunnel | |
| CN208057957U (en) | A kind of low disturbance flow resistance regulating valve of lower resistance | |
| US5662464A (en) | Multi-direction after-air ports for staged combustion systems | |
| CN105910101B (en) | A kind of pulverized coal concentrator of inside and outside deep or light real-time, tunable | |
| CN205807399U (en) | A kind of pulverized coal concentrator structure of inside and outside deep or light real-time, tunable | |
| CN106871116A (en) | A kind of axle eddy flow stepless-adjustment nodal pattern low NO | |
| CN101865462A (en) | Weak-cyclone primary air multi-stage separation cyclone burner | |
| CN202647746U (en) | Real-time adjustable novel swirl burner | |
| CN102758733A (en) | Air channel device for chimney air draft equipment | |
| CN203810390U (en) | Over fire air and secondary air regulation device for pulverized coal boiler | |
| JP5080626B2 (en) | Variable air blowing device | |
| CN103017161B (en) | A kind of vortex burner | |
| CN104100971B (en) | A kind of turbulent burner of First air air-coal separating | |
| CN102562300B (en) | Vortex gas steam turbine | |
| CN103162289B (en) | A kind of swirl block formula pulverized coal concentrator | |
| CN203517857U (en) | Rotation-speed-changeable rotary pulverized-coal distributor | |
| CN202073642U (en) | Vortex combined type heat engine | |
| CN204084351U (en) | A kind of turbulent burner of First air air-coal separating | |
| CN201803364U (en) | Compact type oxygen-enriched combustor | |
| CN201974031U (en) | Adjustable swirler for flame shapes of rotary kiln burner | |
| CN202132940U (en) | Regulating rod device with rotating vanes | |
| CN202023635U (en) | Reheating vortex combined type heat engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20190613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |