CN104355036B - The drop pipe parts of coal spout and coal handling system - Google Patents
The drop pipe parts of coal spout and coal handling system Download PDFInfo
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- CN104355036B CN104355036B CN201410584700.XA CN201410584700A CN104355036B CN 104355036 B CN104355036 B CN 104355036B CN 201410584700 A CN201410584700 A CN 201410584700A CN 104355036 B CN104355036 B CN 104355036B
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- drop pipe
- coal
- pipe parts
- air
- deflector chute
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- 239000003245 coal Substances 0.000 title claims abstract description 94
- 230000004888 barrier function Effects 0.000 claims abstract description 21
- 238000012856 packing Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 21
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 6
- 239000002817 coal dust Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Chutes (AREA)
Abstract
The invention discloses drop pipe parts and the coal handling system of a kind of coal spout.Described drop pipe parts include that having deflector chute connects the drop pipe (21) of end, wherein, described drop pipe parts also include connecting, near described deflector chute, the air-lock device that end is arranged, this air-lock device includes locking gas part (11), this lock gas part (11) includes the main part of the coal breakage passage of fixed part (111) and the described drop pipe of the packing (21) being fixed on described drop pipe (21), and this main part extends to sequentially form choke portion (113) and elastic barrier portion (112) from described fixed part (111).The coal spout that the present invention provides can stop that the air-flow carrying coal dust passes through to avoid the generation of air blast, and its simple in construction, with low cost, the repair and maintenance cost in minimizing later stage.
Description
Technical field
The present invention relates to coal conveying device, in particular it relates to the drop pipe parts of a kind of coal spout and the coal handling system including this coal spout.
Background technology
In the coal handling system of power plant, coal is generally delivered to belt feeder to be transported in boiler original coal bunker by coal through coal spout.Coal spout generally comprises the parts such as coal breakage bucket, down-comer and guiding gutter, and coal enters down-comer from coal breakage bucket and falls on the belt of belt feeder with conveying through guiding gutter.
Owing to having difference in height, easily causing airborne dust during therefore coal falls in down-comer, especially in the case of coal is more dried, the coal stream of whereabouts carries bigger wind, so that the coal dust in coal stream is kicked up.In prior art, usual use following three method reduces the airborne dust during coal breakage: hang dust-break curtain in deflector chute exit, on coal spout, installation steel flapper, installation unpowered dust removal device or water swash dust arrester.First two method generally supports the use, even if but in the case of deflector chute exit hangs dust-break curtain and simultaneously installs steel flapper on coal spout, deflector chute outlet still has the strongest wind powder to overflow, if raw coal is dried, wind powder certainly will be caused jointly to overflow fly upward, polluting environment, therefore, its dust removing effects is the most bad.Additionally, when using unpowered dust removal device or sharp dust arrester to reduce airborne dust, although dust removing effects is fine, but, this mode dedusting not only cost is high, and very water wasting expense is electric, and fluctuation of service, breaks down when stopping transport, has a strong impact on dust removing effects.Additionally, this dedusting method needs later stage repair and maintenance, this is again a no small cost expense.
In sum, prior art exists dust removing effects is bad, dedusting is relatively costly, need the shortcomings such as later stage repair and maintenance.
Summary of the invention
The technical problem to be solved is to provide the drop pipe parts of a kind of coal spout, these drop pipe parts can not only stop that the air-flow carrying coal dust passes through to avoid the generation of air blast, and its simple in construction, with low cost, the repair and maintenance cost in minimizing later stage.
In order to solve above-mentioned technical problem, the present invention provides the drop pipe parts of a kind of coal spout, these drop pipe parts include that having deflector chute connects the drop pipe of end, wherein, described drop pipe parts also include connecting, near described deflector chute, the air-lock device that end is arranged, this air-lock device includes locking gas part, and this lock gas part includes the main part of the coal breakage passage of fixed part and the described drop pipe of packing being fixed on described drop pipe, and this main part extends to sequentially form choke portion and elastic barrier portion from described fixed part.
Preferably, described elastic barrier portion is divided into some, and the direction that the plurality of part is respectively directed away from this choke portion since described choke portion extends.
Preferably, the edge of described main part contacts with the internal face of the coal breakage passage of described drop pipe.
Preferably, the tube wall of described drop pipe being provided with opening, described fixed part is arranged in described opening and is fixed on described aperture position, the position relative with described opening that described elastic barrier portion elasticity is connected on the internal face of described drop pipe.
Preferably, described air-lock device also includes reinforcement, this reinforcement is stacked with described lock gas part and extends to described choke portion and the boundary position in described elastic barrier portion along described bearing of trend from described fixed part, described fixed part is connected to described reinforcement, and described reinforcement is fixedly connected on the edge of described opening.
Preferably, described air-lock device also includes clamping element, and the mode that the described fixed part of described lock gas part is bolted is clamped between described clamping element and described reinforcement.
Preferably, the cross section of described drop pipe is formed as square cross section, and described lock gas part is formed as tabular.
On the basis of technique scheme, the present invention also provides for a kind of coal handling system, this coal handling system includes coal spout, this coal spout includes coal breakage bucket and is positioned at the deflector chute below this coal breakage bucket, wherein, this coal spout also includes the drop pipe parts that the present invention provides, and the described deflector chute of described drop pipe connects end and is connected to described deflector chute, and the other end connecting end relative with described deflector chute of this drop pipe is connected to described coal breakage bucket.
Preferably, described drop pipe is obliquely installed, angle α >=40 ° between this drop pipe and horizontal plane.
Preferably, angle β between plane and the horizontal plane at described lock gas part place is in the range of β >=40 °.
Pass through technique scheme, the present invention provide coal spout drop pipe parts use during by air-lock device can allow for coal stream by and hinder passing through of air-flow, can reach good dust removing effects, and its simple in construction, with low cost, avoid the repair and maintenance in later stage.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of specification, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the detailed description of the invention of the drop pipe parts of the coal spout according to present invention offer, wherein in order to clearly show that the structure of the air-lock device within drop pipe, drop pipe has been carried out section view process；
Fig. 2 is the schematic diagram of the lock gas part in the detailed description of the invention of the drop pipe parts according to present invention offer；
Fig. 3 is the schematic diagram of the reinforcement in the detailed description of the invention of the drop pipe parts according to present invention offer；
The schematic diagram of the clamping element in the detailed description of the invention of the drop pipe parts that Fig. 4 provides according to the present invention.
Description of reference numerals
11 lock gas parts；111 fixed parts；112 elastic barrier portions；113 choke portions；12 reinforcements；13 clamping elements；14 reinforce weld part；15 bolts；16 nuts；21 drop pipes；31 horizontal planes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
In the present invention, for ease of understanding and describing, in the case of illustrating on the contrary, the noun of locality of use such as D score is typically to be below in short transverse (i.e. vertical direction)；It is inside and outside that " inside and outside " refers to relative to the profile of each parts itself, and " forward " or " forward " refers to the direction that coal stream flows, but the above-mentioned noun of locality is not limited to the present invention.And " air-flow " mentioned in the present invention refers to carry the air-flow of coal dust.
The present invention provides the drop pipe parts of a kind of coal spout, these drop pipe parts include that having deflector chute connects the drop pipe 21 of end, wherein, drop pipe parts also include connecting, near deflector chute, the air-lock device that end is arranged, this air-lock device includes locking gas part 11, this lock gas part 11 includes the main part of the coal breakage passage of the fixed part 111 and packing drop pipe 21 being fixed on drop pipe 21, and this main part extends to sequentially form choke portion 113 and elastic barrier portion 112 from fixed part 111.
Here, it is to be understood that " packing " meaning above is to be relatively independent two parts by the coal breakage channel partition of drop pipe 21.During using, when coal stream enters coal breakage passage and arrives the position at air-lock device place, the air-flow that coal stream and the flowing by coal stream bring is blocked in the side of air-lock device, and due to when coal flows down the gravity of himself enable to elastic barrier portion 112 and deform, therefore, only coal stream can continue flow forward by air-lock device, and air-flow is blocked in the side of air-lock device, thus cannot continue to move along.Therefore, the whereabouts pipe fitting of the coal spout that the present invention provides by arrange air-lock device be capable of only allowing coal stream by and the purpose that do not allows air-flow to pass through.
The present invention is described in detail below in conjunction with Fig. 1 to Fig. 4, for the ease of understanding and describing, in the following description, the whereabouts pipe fitting of the coal spout that the present invention provides is in installment state, in this installment state, drop pipe 21 is at an angle with horizontal plane 31 to be obliquely installed, and the direction shown in Fig. 1 is the flow direction of coal stream.But the invention is not limited in this, in actual applications, drop pipe can also be vertically arranged and be actually needed to meet.
In order to the purpose of above-mentioned logical coal choked flow is better achieved, elastic barrier portion 112 can be divided into some, the direction that the plurality of part is respectively directed away from this choke portion 113 since choke portion 113 extends, thus when coal circulation is out-of-date, the partial elastic barrier portion 112 being not in contact with coal stream can keep in situ, it is to avoid is open when the out-of-date whole elastic barrier portion 112 of coal circulation and makes air-flow by the region passed through without coal stream.Such as shown in Fig. 2, elasticity barrier portion 112 can be divided into four parts, on the basis of ensureing the ability that deformation is recovered in elastic barrier portion 112, additionally it is possible to be effectively prevented from above-mentioned situation according to the elastic barrier portion 112 of actual conditions segmentation.
In order to preferably hinder air-flow to pass through, the edge of main part can contact with the internal face of the coal breakage passage of drop pipe 21, thus prevents air-flow from flowing out along the edge of main part.
Additionally, in the present invention, lock gas part 11 can be fixed on drop pipe 21 by the way of any appropriate.Preferably, in the embodiment that the present invention provides, being set to of lock gas part 11: as shown in fig. 1, opening can be provided with on the tube wall of drop pipe 21, fixed part 111 is arranged in opening and is fixed on aperture position, the position relative with opening that elastic barrier portion 112 elasticity is connected on the internal face of drop pipe 21.
In addition, in order to prevent causing choke portion 113 that irreversible deformation occurs because coal flows through big, air-lock device can also include reinforcement 12, this reinforcement 12 is stacked with lock gas part 11 and extends to choke portion 113 and the boundary position in elastic barrier portion 112 along above-mentioned bearing of trend from fixed part 111, fixed part 111 is connected to reinforcement 12, and reinforcement 12 is fixedly connected on the edge of opening.Therefore, reinforcement 12 can not only play the effect supporting choke portion 113, also contributes to the connection of fixed part 111.Additionally, in the detailed description of the invention of the present invention, reinforcement is fixedly connected on the edge of opening in a welding manner, as shown in fig. 1, and in order to strengthen the intensity of weld, strong weld can be added in the position that the edge of reinforcement 12 and opening is welded to connect and form reinforcing weld part 114.At this, it should be noted that, choke portion 113 can have elasticity, can not also have elasticity, but in the case of having elasticity, losing the effect stopping air-flow to prevent choke portion 113 from producing excessive flexural deformation, reinforcement 12 can extend to cover locks about 2/3rds of gas part 11 length, in this case, about 1/3rd of a length of lock gas part 11 length in elastic barrier portion 112.
Additionally, air-lock device also includes clamping element 13, the mode that the fixed part 111 of lock gas part 11 is bolted is clamped between clamping element 13 and reinforcement 12, thus protects fixed part 111 to be not damaged by when fastening.In the detailed description of the invention of the present invention, fixed part 111 can be attached by four groups of bolts 15 and nut 16 and fix, as shown in Fig. 2 and Fig. 3 and Fig. 4,
In the detailed description of the invention of the drop pipe parts of present invention offer, the cross section of drop pipe 21 can be formed as the shape of any enclosed, such as, shown in Fig. 1 to Fig. 4, the cross section of drop pipe 21 is formed as square cross section, correspondingly, lock gas part 11 is formed as tabular such that it is able to make to lock the internal face contact of the coal breakage passage of the EDGE CONTACT drop pipe 21 of the main part of gas part 11.Same, the cross section of drop pipe 21 can also be formed as circular cross section, in this case, according to lock gas part 11 arrange position and with respect to the horizontal plane 31 angle, lock gas part 11 shape can be correspondingly formed as being adapted to have the shape of the drop pipe 21 of circular cross section.
Additionally, for the material making lock gas part 11, as long as disclosure satisfy that above-mentioned functions demand, the present invention does not limit.The pierce tap that secondary recovery even can be utilized to utilize can realize the purpose of logical coal choked flow.Therefore, this greatly reduces cost of investment.It addition, by foregoing description, the structure of the drop pipe assembly that the present invention provides is very simple and easy for installation, it is easy to change, and its replacement cycle is about half a year, greatly reduces the expense even avoiding follow-up repair and maintenance.
On the basis of technique scheme, the present invention also provides for a kind of coal handling system, this coal handling system includes coal spout, this coal spout includes coal breakage bucket and is positioned at the deflector chute below this coal breakage bucket, wherein, this coal spout also includes the drop pipe parts that the present invention provides, and the deflector chute of drop pipe 21 connects end and is connected to deflector chute, and the other end connecting end relative with deflector chute of this drop pipe 21 is connected to coal breakage bucket.
By above-mentioned setting, the drop pipe parts that the coal handling system that the present invention provides provides by arranging the present invention can be effectively reduced the coal dust in deflector chute exit and pollute, and also possess above-mentioned advantage.
In the ordinary course of things, reducing the impact to belt conveyor to reduce speed when coal flows to reach deflector chute, drop pipe 21 can be obliquely installed.In this case, for the material for manufacturing drop pipe commonly used in the art, when the angle on inclined-plane is more than or equal to 40 °, in the absence of external forces, coal can flow freely, and therefore, it can there is this set: angle α >=40 ° between drop pipe 21 and horizontal plane 31, so that the coal noresidue in the coal breakage passage of drop pipe 21, it is ensured that coal breakage vias inner walls smooth.
In like manner, in order to avoid producing long-pending coal phenomenon at air-lock device, the angle β between plane and the horizontal plane 31 at lock gas part 11 place is in the range of β >=40 °.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can be carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in the case of reconcilable, can be combined by any suitable means, in order to avoid unnecessary repetition, various possible combinations are illustrated by the present invention the most separately.
Additionally, can also be combined between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the drop pipe parts of a coal spout, these drop pipe parts include that having deflector chute connects the drop pipe (21) of end, it is characterized in that, described drop pipe parts also include connecting, near described deflector chute, the air-lock device that end is arranged, this air-lock device includes locking gas part (11), this lock gas part (11) includes the main part of the coal breakage passage of fixed part (111) and the described drop pipe of the packing (21) being fixed on described drop pipe (21), this main part extends to sequentially form choke portion (113) and elastic barrier portion (112) from described fixed part (111).
Drop pipe parts the most according to claim 1, it is characterized in that, described elastic barrier portion (112) is divided into some, and the direction that the plurality of part is respectively directed away from this choke portion (113) since described choke portion (113) extends.
Drop pipe parts the most according to claim 1, it is characterised in that the edge of described main part contacts with the internal face of the coal breakage passage of described drop pipe (21).
Drop pipe parts the most according to claim 1, it is characterized in that, it is provided with opening on the tube wall of described drop pipe (21), described fixed part (111) is arranged in described opening and is fixed on described aperture position, the position relative with described opening that described elastic barrier portion (112) elasticity is connected on the internal face of described drop pipe (21).
Drop pipe parts the most according to claim 4, it is characterized in that, described air-lock device also includes reinforcement (12), stacked with described lock gas part (11) and along described main part the bearing of trend of this reinforcement (12) extends to the boundary position of described choke portion (113) and described elastic barrier portion (112) from described fixed part (111), described fixed part (111) is connected to described reinforcement (12), and described reinforcement (12) is fixedly connected on the edge of described opening.
Drop pipe parts the most according to claim 5, it is characterized in that, described air-lock device also includes clamping element (13), and the mode that the described fixed part (111) of described lock gas part (11) is bolted is clamped between described clamping element (13) and described reinforcement (12).
7., according to the drop pipe parts described in any one in claim 1-6, it is characterised in that the cross section of described drop pipe (21) is formed as square cross section, described lock gas part (11) is formed as tabular.
8. a coal handling system, including coal spout, this coal spout includes coal breakage bucket and is positioned at the deflector chute below this coal breakage bucket, it is characterized in that, this coal spout also includes according to the drop pipe parts according to any one of claim 1-7, the described deflector chute of described drop pipe (21) connects end and is connected to described deflector chute, and the other end connecting end relative with described deflector chute of this drop pipe (21) is connected to described coal breakage bucket.
Coal handling system the most according to claim 8, it is characterised in that described drop pipe (21) is obliquely installed, angle α >=40 ° between this drop pipe (21) and horizontal plane (31).
Coal handling system the most according to claim 8, it is characterised in that angle β between plane and the horizontal plane (31) at described lock gas part (11) place is in the range of β >=40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584700.XA CN104355036B (en) | 2014-10-27 | 2014-10-27 | The drop pipe parts of coal spout and coal handling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584700.XA CN104355036B (en) | 2014-10-27 | 2014-10-27 | The drop pipe parts of coal spout and coal handling system |
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| Publication Number | Publication Date |
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| CN104355036A CN104355036A (en) | 2015-02-18 |
| CN104355036B true CN104355036B (en) | 2016-08-17 |
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| CN201410584700.XA Active CN104355036B (en) | 2014-10-27 | 2014-10-27 | The drop pipe parts of coal spout and coal handling system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773477A (en) * | 2015-03-26 | 2015-07-15 | 中国能源建设集团安徽省电力设计院有限公司 | Large-drop coal dropping pipe with air return function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931686A (en) * | 2005-09-13 | 2007-03-21 | 陆洪瑞 | Mechanically sealed valve |
| CN201190013Y (en) * | 2008-04-12 | 2009-02-04 | 襄樊凯瑞电力科技有限公司 | Three-dimensional disperse material collecting coal dropping pipe |
| CN101368625A (en) * | 2008-10-07 | 2009-02-18 | 山东泰山钢铁集团有限公司 | Large-caliber sliding chute wind screen valve |
| CN201411213Y (en) * | 2009-05-06 | 2010-02-24 | 吴啸 | Buffer air lock |
| CN202274505U (en) * | 2011-10-18 | 2012-06-13 | 吉林省电力有限公司电力科学研究院 | Coal locker for coal drop pipe of coal feeder |
| CN203064624U (en) * | 2013-02-17 | 2013-07-17 | 梅州市电业开发总公司 | Self-weight type buffer air lock |
| CN103496594A (en) * | 2013-09-27 | 2014-01-08 | 师厚刚 | Dual airlock valve |
| CN204197801U (en) * | 2014-10-27 | 2015-03-11 | 中国神华能源股份有限公司 | The drop pipe parts of coal spout and coal handling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8640855B2 (en) * | 2010-10-13 | 2014-02-04 | Steven Hays Brobst | Apparatus and method for passive dust control in a transfer chute |
-
2014
- 2014-10-27 CN CN201410584700.XA patent/CN104355036B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931686A (en) * | 2005-09-13 | 2007-03-21 | 陆洪瑞 | Mechanically sealed valve |
| CN201190013Y (en) * | 2008-04-12 | 2009-02-04 | 襄樊凯瑞电力科技有限公司 | Three-dimensional disperse material collecting coal dropping pipe |
| CN101368625A (en) * | 2008-10-07 | 2009-02-18 | 山东泰山钢铁集团有限公司 | Large-caliber sliding chute wind screen valve |
| CN201411213Y (en) * | 2009-05-06 | 2010-02-24 | 吴啸 | Buffer air lock |
| CN202274505U (en) * | 2011-10-18 | 2012-06-13 | 吉林省电力有限公司电力科学研究院 | Coal locker for coal drop pipe of coal feeder |
| CN203064624U (en) * | 2013-02-17 | 2013-07-17 | 梅州市电业开发总公司 | Self-weight type buffer air lock |
| CN103496594A (en) * | 2013-09-27 | 2014-01-08 | 师厚刚 | Dual airlock valve |
| CN204197801U (en) * | 2014-10-27 | 2015-03-11 | 中国神华能源股份有限公司 | The drop pipe parts of coal spout and coal handling system |
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| CN104355036A (en) | 2015-02-18 |
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