CN207922257U - A kind of boiler synchronization lifting deashing mechanism - Google Patents
A kind of boiler synchronization lifting deashing mechanism Download PDFInfo
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- CN207922257U CN207922257U CN201721582551.9U CN201721582551U CN207922257U CN 207922257 U CN207922257 U CN 207922257U CN 201721582551 U CN201721582551 U CN 201721582551U CN 207922257 U CN207922257 U CN 207922257U
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Abstract
The utility model discloses a kind of boiler synchronization lifting deashing mechanism, lift drive mechanism including deashing frame and driving deashing frame reciprocal vertical lifting, the lift drive mechanism includes four drive chains moved synchronously and four drive sprockets being sequentially connected respectively with the drive chain, drive sprocket described in each two is connect by a drive shaft with a commutator respectively, the other end of each drive shaft is connect with a band base bearing, each commutator is connect by a transmission shaft with a shaft coupling, and the shaft coupling is connect with the same motor reducer；One end of the every drive chain, which is connected to, to be cleaned on frame, forms an entirety with frame is cleaned, drive chain and cleaning frame move synchronously together；The soot blower being located at the top of boiler, for automatically opening air intake valve when deashing frame reaches at the top of boiler to carry out pulsed purging to the steel brush on deashing frame.The utility model can guarantee the normal table operation of deashing device.
Description
Technical field
The utility model is related to waste heat boiler ash-clearing technology fields, and in particular to a kind of boiler synchronization lifting deashing mechanism.
Background technology
One of the technical barrier of ferrosilicon smelting stove UTILIZATION OF VESIDUAL HEAT IN is the upper SILICA FUME SiO of boiler heat exchange tube bank2In tube bank
Adhesiveness dust stratification problem.SiO in ferrosilicon furnace flue gas2Superfine, small particle is referred to as silicon powder.Silicon powder is averaged
Grain size, 200-400nm, dust wall surface accumulate 20m2/ g (it is extremely easy to produce static electricity, easily absorption and also heat-proof quality it is very good), it is micro-
Silica flour SiO2After being adhered on heat-exchanging tube bundle, boiler tube bundle heat transfer condition is made to run down, steam production is gradually reduced, if silicon
Micro mist cleaning is not clean, and boiler is difficult normal operation.In addition, since boiler tube bundle can be caused in the process of running due to uneven heating
The problem of deformation of tube bank is to influence the operation of ash-clearing structure, and perplex waste heat boiler deashing.
Generally boiler heat exchange tube bank is cleared up using liftable rectangular-shaped deashing frame at present, on deashing frame
Have steel brush, in the process of running can dust stratification be attached on steel brush, work is cleaned in influence with water, the other elevator drive machine of existing deashing frame
Structure is complicated, more electric drives, poor synchronization.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provide a kind of boiler synchronization lifting
Deashing mechanism.
Technical solution is used by realize the purpose of this utility model：
A kind of boiler synchronization lifting deashing mechanism, including deashing frame and driving deashing frame reciprocal vertical lifting
Lift drive mechanism, which is characterized in that the lift drive mechanism include four drive chains moved synchronously and respectively with
Four drive sprockets that the drive chain is sequentially connected, drive sprocket described in each two pass through a drive shaft and a commutation respectively
Device connects, and the other end of each drive shaft connect with a band base bearing, each the commutator by a transmission shaft and
One shaft coupling connects, and the shaft coupling is connect with the same motor reducer；One end of the every drive chain is connected to clearly
It sweeps on frame, forms an entirety with frame is cleaned, drive chain and cleaning frame move synchronously together.
Further include the soot blower being located at the top of boiler, soot blower includes multiple purging nozzles, and access external compression is empty
Gas, for automatically opening air intake valve when deashing frame is reached apart from a distance at the top of boiler with to entire deashing frame
Steel brush carry out pulsed purging.
The compressed air valve and motor reducer of the soot blower are connect with control system respectively.
The utility model is applied to the deashing mechanism of ferrosilicon smelting flue gas exchanging pipe of boiler by waste, can will be adhered to heat exchanger tube
On micro mist remove, and realize automatic cleaning steel brush dust stratification, ensure the normal table operation of deashing device, ensure boiler heat exchange
Efficiency makes full use of the waste heat potential of flue gas.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lift drive mechanism of boiler synchronization lifting deashing mechanism；
Fig. 2 is boiler synchronization lifting deashing mechanism and the schematic diagram after the assembly of deashing frame；
Fig. 3 is the structural schematic diagram of braced frame.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
Referring to shown in Fig. 1-3, a kind of boiler synchronization lifting deashing mechanism, including：
Lift drive mechanism including deashing frame 12 and the driving deashing frame reciprocal vertical lifting, the lifting are driven
Motivation structure includes four drive chains 7 moved synchronously and four drive sprockets being sequentially connected respectively with the drive chain
6, drive sprocket described in each two is connect by a drive shaft with a commutator 5 respectively, the other end of each drive shaft with
One band base bearing 4 connects, and each commutator connect by a transmission shaft 3 with a shaft coupling 2, the shaft coupling 2 and together
One motor reducer 1 connects；One end of the every drive chain, which is connected to, to be cleaned on frame 12, and one is formed with frame is cleaned
A entirety, drive chain and cleaning frame move synchronously together.
Further include the soot blower being located at boiler top position 13, soot blower includes multiple purging nozzles 11, access
External compression air, for automatically opening air intake valve when deashing frame 12 is reached apart from boiler 13 a distance of top position
To carry out pulsed purging to the steel brush on entire deashing frame.
Wherein, motor reducer 1 provides power by shaft coupling 2, transmission shaft 3 and commutator 5, while driving each driving
Drive sprocket 6 on axis synchronously rotates, totally four groups of sprocket wheel-link chain mechanisms, and the rotation of drive sprocket 6 drives vertical hard-drive chain
One end (can such as pass through axis pin and holder or other fixed forms) of the up and down motion of item 7, drive chain is connected to cleaning frame
On frame 12, the two, which is formed, to be hinged, and forms an entirety with frame 12 is cleaned, drive chain 7 and cleaning 12 1 lifting of frame are transported
It is dynamic.
When running up a high position for boiler due to deashing frame, 7 device of drive chain stretch out boiler outside it is longer (boiler
The stroke of height or clearing apparatus determines chain length), so the external setting one in boiler stablizes branch with what is be oriented to
Support frame frame 8 ensures the stabilization of drive chain and accurate operation.
The braced frame 8 is rectangular frame, including two risers 82, is oppositely arranged, has multiple between two risers
There are two opposite mounting plate 86 between transverse slat 81 setting up and down, described two risers, each mounting plate with it is corresponding
Riser between two groups of type leading wheel frameworks 83 are installed, the type leading wheel framework includes two directive wheels 84, is oppositely arranged, leads to respectively
Wheel carrier is crossed on the riser and mounting plate, drive chain carries out oscilaltion shifting from passing through between described two directive wheels
It is dynamic.
Multiple purging nozzles can be beaten for accessing external compression air when deashing frame reaches top automatically
It drives air valve into and pulsed purging is carried out to the steel brush of entire deashing frame, steel brush is clean, the elasticity of steel brush is kept, is subtracted
Resistance between small steel brush and heat-exchanging tube bundle, to ensure that deashing process is smooth efficiently.
Wherein, the compressed air valve of the soot blower and motor reducer respectively with control system or controller phase
Connection, is automatically controlled by the control system or controller and is turned on and off.
The top that boiler is up in boiler tube bundle deashing frame limits a high position, (can limit and be arranged at high-order position 9
High-order limit switch, connect with control system or controller, after touching high-order limit switch) motor reducer stopping fortune
Row, while the Air blowing valve of controller or control system (such as microcontroller) control high pressure air is opened, and purging is begun through
Nozzle purging cleans the steel brush on frame, cleans up the dust stratification above steel brush.After steel brush dust stratification purging, it is anti-that controller starts motor
Turn, deashing frame is run down to by vertical chain-sprocket mechanism and limits low level in boiler, (position of low level can be limited
Setting low level limit switch at 10 is set, is connect with control system or controller, after touching low level limit switch) controller
Or control system, start motor reversal, and cleaning frame is driven to move upwards, completion one high-order to the limitation of boiler top
Impulse stroke.Meanwhile entire stroke time and the frequency can be set according to different operating modes.
The purging nozzle is provided at the top of boiler, the steel brush for accessing external compression air to deashing frame
Dust stratification purging.When deashing frame movement reaches top, opens Air blowing valve and the steel brush of entire deashing frame is purged, by steel
It brushes clean, keeps the elasticity of steel brush, reduce the resistance between steel brush and heat-exchanging tube bundle, to ensure the smooth height of deashing process
Effect.
Elevating drive mechanism of the utility model by using the synchro-lift system of sprocket wheel-chain as cleaning frame,
It can either ensure to clean the synchronous operation during frame movement, also ensure and clean when frame is upwardly or downwardly run not
It will appear the appearance of bite situation.
In addition, adding the purge system of intelligent control in systems, when cleaning frame arrival highest limit, open automatically
Dynamic purge system is purged to cleaning the steel brush in frame, is ensured steel brush elasticity, is extended the service life of steel brush, improves steel
Brush cleaning efficiency.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (2)
1. a kind of boiler synchronization lifting deashing mechanism, including deashing frame and the liter of the driving deashing frame reciprocal vertical lifting
Drop driving mechanism, which is characterized in that the lift drive mechanism include four drive chains moved synchronously and respectively with institute
Four drive sprockets of drive chain drive connection are stated, drive sprocket passes through a drive shaft and a commutator respectively described in each two
Connection, the other end of each drive shaft are connect with a band base bearing, and each commutator passes through a transmission shaft and one
Shaft coupling connects, and the shaft coupling is connect with the same motor reducer；One end of the every drive chain is connected to cleaning
On frame, an entirety is formed with frame is cleaned, drive chain and cleaning frame move synchronously together,
Further include the soot blower being located at the top of boiler, soot blower includes multiple purging nozzles, accesses external compression air, is used
In automatically opening air intake valve when deashing frame reaches a distance at the top of the boiler with to the steel on entire deashing frame
Brush carries out pulsed purging.
2. boiler synchronization lifting deashing mechanism according to claim 1, which is characterized in that the compressed air of the soot blower
Valve and motor reducer are connect with control system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582551.9U CN207922257U (en) | 2017-11-23 | 2017-11-23 | A kind of boiler synchronization lifting deashing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582551.9U CN207922257U (en) | 2017-11-23 | 2017-11-23 | A kind of boiler synchronization lifting deashing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207922257U true CN207922257U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721582551.9U Active CN207922257U (en) | 2017-11-23 | 2017-11-23 | A kind of boiler synchronization lifting deashing mechanism |
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| CN (1) | CN207922257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036340A (en) * | 2017-11-23 | 2018-05-15 | 中材节能股份有限公司 | A kind of boiler synchronization lifting deashing mechanism |
-
2017
- 2017-11-23 CN CN201721582551.9U patent/CN207922257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036340A (en) * | 2017-11-23 | 2018-05-15 | 中材节能股份有限公司 | A kind of boiler synchronization lifting deashing mechanism |
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