CN203740394U - Coal drop pipe capable of preventing coal adhering - Google Patents
Coal drop pipe capable of preventing coal adhering Download PDFInfo
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- CN203740394U CN203740394U CN201320713872.3U CN201320713872U CN203740394U CN 203740394 U CN203740394 U CN 203740394U CN 201320713872 U CN201320713872 U CN 201320713872U CN 203740394 U CN203740394 U CN 203740394U
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- coal
- coal spout
- wall
- drop pipe
- coal drop
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Abstract
The utility model relates to a coal drop pipe, in particular to a coal drop pipe capable of preventing coal adhering. The coal drop pipe comprises ultrasonic transducers, a coal drop pipe outer wall, a coal drop pipe inner wall, elastic adhesive tapes, a high-frequency oscillators, vibrating bases, a coal drop pipe inner wall supporting column, an inner protecting sheet retaining screw, an inner protecting sheet, an inner protecting sheet elastic rubber mat, and a coal drop pipe inner wall elastic rubber mat, wherein the coal drop pipe is composed of the coal drop pipe outer wall and the coal drop pipe inner wall; the coal drop pipe outer wall mainly plays a supporting function; the coal drop pipe inner wall is a channel for conveying coal. A double-layered coal drop pipe design is adopted, the inner pipe is hung on the outer pipe, and has an enough movable space and elasticity, a well vibrating effect can be realized with slight vibration force, and a high-frequency low-amplitude vibration can be realized, so that the stripping capacity of the internal face on adhered substances is enhanced, and meanwhile, negative effects on other parts of a coal drop system are avoided; the coal drop pipe is simple in structural style, convenient to mount, low in maintenance amount during operation, long in service life, and good in coal caking effect, and can completely solve a problem that a coal drop hopper is blocked by coal.
Description
Technical field
The present invention relates to coal spout, particularly a kind of antiseized coal coal spout.
Background technology
In thermal power plant's coal supply system, coal spout is the position of easy chute blockage, and coal spout is on feeder flashboard, and below coal breakage bucket, the overwhelming majority is circular structure, and diameter is generally in 1 meter.Coal had been received the extruding of himself gravity and the extruding of coal breakage headwall before entering coal spout in coal breakage bucket, in the time entering coal spout straight pipeline, tube wall is produced to very large pressure, if coal breakage tube wall is now rough, or in coal, contain the impurity such as certain clay, add certain moisture, fine particle and coal dust through tube wall are very easy to stick on coal breakage tube wall, thin layer material starts to bond, increasing friction force after bonding, then towards axially with radially extending, increase gradually thickness, finally form difformity and stop up, cause cutout.The particularly run coal bin of large-size thermal power plant configuration unit pulverized-coal system, stop up once lower coal occurs in power plant, generator set will be forced to the urgent removal of load of exerting oneself that reduces, and even occur that boiler combustion shakiness causes a large amount of throwing oil, and more serious meeting causes boiler extinguishment, the unplanned stoppage in transit of unit.
Because the space of coal spout is smaller, on it, relatively large dredging device cannot be installed, mechanical vibrator has been installed absolutely mostly, exactly vibrating motor is directly arranged on coal spout shell, in the time finding to stop up, Vibration on Start-up motor, because coal spout is the rigidity structure of the thickness steel plate that is not less than 10 wares, cause that amplitude is little, the low block clearing weak effect of oscillation frequency, noise greatly, particularly easily run coal bin basis is shattered.If the power of shaking is excessive, easily make the link bolt looseness on equipment, make wall distortion, time of vibration is longer, and run coal bin is more real by " top ", has increased on the contrary dredging difficulty.
In investigation, find that at the scene the coal spout of a lot of power plant is all pounded by sledgehammer rough and uneven in surface, the chance of having aggravated so again chute blockage.For convenient block clearing timely, a lot of power plant have opened on coal spout discloses coal hole, and in the time finding chute blockage, operations staff holds rapidly drill rod and by disclosing coal hole, coal disclosed.Do like this efficiency very low, there is again danger.
At present, for solving lower coal blockage problem, existing company changes coal spout place into the blockage-clearing device of rotation, by gyro-rotor, revolution is supported, suspention support arm forms, on revolution warehouse inwall, a rooted tooth blade is set, although can effectively wipe the raw coal of tying on bulkhead off, disintegrate the basis of knot arch in storehouse, but can not to raw coal in blanking process because of gravity, the coal cinder that the factors such as humidity form plays effect broken and that stir, can not thoroughly remove the drawback of obstruction, the coal that the blockage-clearing device of rotation itself adheres in addition cannot be removed totally thoroughly, time has been grown and has also affected block clearing effect.The block clearing plant maintenance amount that is exactly in addition rotation is large, and the construction and installation cycle is longer, invests larger.
Summary of the invention
The object of the present invention is to provide a kind of antiseized coal coal spout, mainly solve the problem of coal spout at normal chute blockage in service.And ensure little at normal maintenance in service, on other equipment without any impact and harm, transformation is simple, improvement cost is low, operation life is long.
For achieving the above object, technical scheme of the present invention is:
A kind of antiseized coal coal spout, is characterized in that: it is made up of ultrasonic transducer, coal spout outer wall, coal spout inwall, elastic adhesive tape, high frequency generator, vibrating base, coal spout inwall pillar stiffener, inner casing check screw, inner casing, inner casing elastic rubber fitting, coal spout inwall elastic rubber fitting; Wherein: coal spout is made up of coal spout outer wall and coal spout inwall, and coal spout outer wall mainly plays a supportive role, coal spout inwall is the passage of carrying coal, good springiness, the antifriction metal (AFM) plate of its material selection 3mm left and right; The top of coal spout outer wall studs with some coal spout inwall pillar stiffeners, above coal spout inwall, have with pillar stiffener for hole; Coal spout inwall is suspended on by hole above on the pillar stiffener of top of coal spout outer wall, and coal spout inwall is suspension status under the support of coal spout outer wall like this.
Described antiseized coal coal spout, is characterized in that: between coal spout outer wall and coal spout inwall, suitable position studs with elastic adhesive tape, and this adhesive tape has and good elasticity and intensity, ensures that coal spout inwall has the free activity space of 1mm.
Described antiseized coal coal spout, is characterized in that: several vibrating bases are installed on coal spout inwall, and its version is the outside of stretching out coal spout outer wall, does not contact with coal spout outer wall, and its end face stretching out is oblique about 30 degree.
Described antiseized coal coal spout, is characterized in that: on each vibrating base, dither is installed, its oscillation frequency is not less than per minute more than 10,000 times, and its amplitude is not more than 1mm.
Described antiseized coal coal spout, is characterized in that: the both sides, hanging position of coal spout inwall are all provided with elastic rubber fitting and inner casing elastic rubber fitting, is used for ensureing coal spout inwall elasticity activity space.
Described antiseized coal coal spout, is characterized in that: the hanging position of coal spout inwall is provided with inner casing, and its material requires to have good elasticity and wear resisting property.The inner casing top coal spout outer wall that links closely, the inner casing coal spout inwall that links closely below, to prevent that coal dust from entering the inside.Inner casing is fixed by inner casing check screw.
Described antiseized coal coal spout, it is characterized in that: inner casing is connected with ultrasonic transducer by inner casing check screw, coal spout inwall pillar stiffener, be the annex that ultrasonic transducer is welded on coal spout inwall pillar stiffener, ultrasonic energy can be delivered on inner casing by actv..
Described antiseized coal coal spout, it is characterized in that: under the control able to programme of the working state control device of ultrasonic transducer and dither, have multiple working forms, can work independently according to actual needs, also can work simultaneously, also can be according to certain sequential working.
The invention has the advantages that: adopt double-deck coal spout design, inner tube is suspended on good activity space and elasticity on outer tube, will produce extraordinary vibrating effect with very little vibratory force, can realize the vibration of high frequency short arc, strengthened the energy of peeling off to coherent substance of internal face, simultaneously to other part of coal breakage system without any negative interaction.Version is simple, easy for installation, and the maintenance that is in operation is few, and operation life is long.Antiseized coal is effective, can thoroughly solve the problem of coal hopper coal blockage.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is A partial enlarged drawing in the embodiment of the present invention 1.
Fig. 3 is B partial enlarged drawing in the embodiment of the present invention 1.
Fig. 4 is C partial enlarged drawing in the embodiment of the present invention 1.
Detailed description of the invention
Refer to Fig. 1, it is the structural representation of a kind of antiseized coal coal spout embodiment 1 of the present invention.As shown in the figure: it comprises taper coal breakage bucket 1, ultrasonic transducer 2, coal spout outer wall 3, coal spout inwall 4, elastic adhesive tape 5, high frequency generator 6, vibrating base 7, coal spout inwall pillar stiffener 8, inner casing check screw 9, inner casing 10, inner casing elastic rubber fitting 11, coal spout inwall elastic rubber fitting 12.Wherein, the coal spout below taper coal breakage bucket 1 is made up of coal spout outer wall 3 and coal spout inwall 4.Coal spout inwall 4 is suspended on 3 li of coal spout outer walls by the coal spout inwall pillar stiffener 8 being embedded on coal spout outer wall 3.The top symmetric position of coal spout outer wall 3 is provided with ultrasonic transducer 2.
Refer to Fig. 2, the top of coal spout inwall 4 is also provided with inner casing 10, is closely connected with coal spout inwall pillar stiffener 8 by inner casing check screw 9.Its material requires to have good elasticity and wear resisting property.
Refer to Fig. 3, the hanging position, top of coal spout inwall 4, on coal spout inwall pillar stiffener 8, the both sides of coal spout inwall 4 are provided with inner casing elastic rubber fitting 11 and coal spout inwall elastic rubber fitting 12, are used for ensureing the activity space of coal spout inwall 4.
Refer to Fig. 4, below coal spout inwall 4 and between coal spout outer wall 3, elastic adhesive tape 5 is installed, be used for ensureing the activity space of coal spout inwall 4.
Refer to Fig. 4, the appropriate location of coal spout inwall 4 is provided with several vibrating bases 7, and its version is the outside of stretching out coal spout outer wall 3, does not contact with coal spout outer wall 3, and its end face stretching out is oblique about 30 degree.On each vibrating base 7, dither 6 is installed, its oscillation frequency is not less than per minute more than 10,000 times, and its amplitude is not more than 1mm.
The antiseized coal coal spout of the present invention principle of work is: in the time of defeated coal work, coal spout inwall is under the effect of ultrasonic transducer and high frequency generator, produce the high-frequency vibration of downward 30 degree directions, this power produces propulsive effort vertically downward and the peeling force of vertical axis, what stick to that particulate on internal face obtains peels off square being directly proportional of energy and oscillation frequency, because oscillation frequency is very high, so it is just very large to adhere to the energy of peeling off of particulate acquisition, simultaneously coal spout inwall is the metal material of smooth good springiness, adding coal spout inwall is the suspension that has free activity space, this situation can ensure that coal spout inwall can not adhere to anything completely, the problem that can stop the disconnected coal of coal spout part completely occurs.In addition, can, according to the adhesion feature of coal in power plant, can take operational mode flexibly, for example: vibrator can single-point work, sequential working, intermittent use, work etc. simultaneously.
Claims (3)
1. an antiseized coal coal spout, it is characterized in that: it comprises taper coal breakage bucket (1), ultrasonic transducer (2), coal spout outer wall (3), coal spout inwall (4), elastic adhesive tape (5), high frequency generator (6), vibrating base (7), coal spout inwall pillar stiffener (8), inner casing check screw (9), inner casing (10), inner casing elastic rubber fitting (11), coal spout inwall elastic rubber fitting (12), wherein, coal spout below taper coal breakage bucket (1) is made up of coal spout outer wall (3) and coal spout inwall (4), to be suspended on coal spout outer wall (3) inner by being embedded in coal spout inwall pillar stiffener (8) on coal spout outer wall (3) for coal spout inwall (4), the top symmetric position of coal spout outer wall (3) is provided with ultrasonic transducer (2).
2. the antiseized coal coal spout of one according to claim 1, it is characterized in that: the appropriate location of coal spout inwall (4) is provided with several vibrating bases (7), its version is the outside of stretching out coal spout outer wall (3), do not contact with coal spout outer wall (3), its end face stretching out is oblique about 30 degree, dither (6) is installed on each vibrating base (7), its oscillation frequency is not less than per minute more than 10,000 times, and its amplitude is not more than 1mm.
3. the antiseized coal coal spout of one according to claim 1, it is characterized in that: the top of coal spout inwall (4) is also provided with inner casing (10), be closely connected with coal spout inwall pillar stiffener (8) by inner casing check screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713872.3U CN203740394U (en) | 2013-11-13 | 2013-11-13 | Coal drop pipe capable of preventing coal adhering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713872.3U CN203740394U (en) | 2013-11-13 | 2013-11-13 | Coal drop pipe capable of preventing coal adhering |
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| Publication Number | Publication Date |
|---|---|
| CN203740394U true CN203740394U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713872.3U Expired - Fee Related CN203740394U (en) | 2013-11-13 | 2013-11-13 | Coal drop pipe capable of preventing coal adhering |
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| CN (1) | CN203740394U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750705A (en) * | 2018-07-05 | 2018-11-06 | 佛山市墨宸智能科技有限公司 | A kind of Coal Transport save set |
| CN110171725A (en) * | 2019-05-16 | 2019-08-27 | 太原理工大学 | A kind of device for the anti-adherency of concrete production weighing cabin |
| CN111874463A (en) * | 2020-07-17 | 2020-11-03 | 上海兴全电力技术有限公司 | Device for efficiently preventing bridging and wall adhesion of hopper materials |
| CN116174412A (en) * | 2023-01-03 | 2023-05-30 | 华能秦煤瑞金发电有限责任公司 | Coal cleaning device for effectively cleaning coal sticking of coal dropping pipe |
-
2013
- 2013-11-13 CN CN201320713872.3U patent/CN203740394U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750705A (en) * | 2018-07-05 | 2018-11-06 | 佛山市墨宸智能科技有限公司 | A kind of Coal Transport save set |
| CN110171725A (en) * | 2019-05-16 | 2019-08-27 | 太原理工大学 | A kind of device for the anti-adherency of concrete production weighing cabin |
| CN111874463A (en) * | 2020-07-17 | 2020-11-03 | 上海兴全电力技术有限公司 | Device for efficiently preventing bridging and wall adhesion of hopper materials |
| CN116174412A (en) * | 2023-01-03 | 2023-05-30 | 华能秦煤瑞金发电有限责任公司 | Coal cleaning device for effectively cleaning coal sticking of coal dropping pipe |
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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: 20140730 Termination date: 20191113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |