JPS625535Y2 - - Google Patents
Info
- Publication number
- JPS625535Y2 JPS625535Y2 JP2526782U JP2526782U JPS625535Y2 JP S625535 Y2 JPS625535 Y2 JP S625535Y2 JP 2526782 U JP2526782 U JP 2526782U JP 2526782 U JP2526782 U JP 2526782U JP S625535 Y2 JPS625535 Y2 JP S625535Y2
- Authority
- JP
- Japan
- Prior art keywords
- branch
- solid particles
- flow rate
- pipe
- damper
- 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
Links
- 239000002245 particle Substances 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
Landscapes
- Air Transport Of Granular Materials (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Description
【考案の詳細な説明】
本考案は、固体粒子を空気搬送する配管の分岐
部に於ける流量調整ダンパーに関するものであ
る。[Detailed Description of the Invention] The present invention relates to a flow rate adjusting damper at a branch part of a pipe for conveying solid particles by air.
固体粒子を空気搬送する配管、例えば第１図に
示す如く流動床燃焼炉１に微粉炭バンカ２より送
り出された微粉炭及び石灰石バンカ３より送り出
された石灰石を送風機４からの搬送空気にて空気
搬送する燃料供給管５は、流動床燃焼炉１内の多
数の燃料供給ノズル６へ微粉炭及び石灰石を均等
に分配することが極めて困難である為、通常図示
の如く燃料供給管５を途中からＹ字形に分岐し、
この分岐燃料供給管５′を夫々途中からＹ字形に
分岐し、この分岐燃料供給管５″を燃料供給ノズ
ル６に接続している。 Piping for conveying solid particles by air, for example, as shown in FIG. Since it is extremely difficult to evenly distribute pulverized coal and limestone to the large number of fuel supply nozzles 6 in the fluidized bed combustion furnace 1, the fuel supply pipe 5 is usually connected from the middle as shown in the figure. Branches into a Y shape,
The branch fuel supply pipes 5' are each branched into a Y-shape from the middle, and the branch fuel supply pipes 5'' are connected to a fuel supply nozzle 6.
然し乍ら、このように微粉炭及び脱硫剤等の固
体粒子を空気搬送する燃料供給管をＹ字形に多数
段に分岐すると、分岐部よりも上流のベンド部等
の影響によつて固体粒子が燃料供給管５の断面内
で第２図ａに示す如く一様に分散することなく、
いずれかの壁面に沿い、例えば第２図ｂに示す如
く偏つて分布していることが多い。従つて、この
状態で分岐された場合には片方の分岐燃料供給管
内の固体粒子の濃度が極端に高くなり、最終的に
各燃料供給ノズル６から炉内に均一な濃度の微粉
炭及び石灰石を分配供給することができず、従つ
て流動燃焼に偏りが生じ、不安定になるものであ
る。 However, if the fuel supply pipe that pneumatically transports solid particles such as pulverized coal and desulfurization agent is branched into multiple stages in a Y-shape, the solid particles will not be supplied as fuel due to the influence of the bend section upstream of the branch section. Without being uniformly distributed within the cross section of the tube 5 as shown in FIG. 2a,
It is often distributed unevenly along any wall surface, for example as shown in FIG. 2b. Therefore, if the fuel supply pipes are branched in this state, the concentration of solid particles in one branch fuel supply pipe will be extremely high, and eventually a uniform concentration of pulverized coal and limestone will be delivered from each fuel supply nozzle 6 into the furnace. Distributed supply is not possible, and therefore fluidized combustion becomes unbalanced and unstable.
前述の第２図ｂに示される固体粒子の偏りは、
穀粉、セメント等の空気搬送に於いても生じ、多
数の搬送先に搬送する際均一な濃度で分配供給す
ることができないものである。 The deviation of the solid particles shown in Figure 2b above is
This also occurs when flour, cement, etc. are transported by air, and it is not possible to distribute and supply them at a uniform concentration when transporting to multiple destinations.
これを解決する為に、ダンパーを用いることが
考えられるが、固体粒子の濃度が変化する程ダン
パー開度を操作すれば、搬送空気流量が大幅に変
化することになつて搬送阻害を起し、ひどい場合
には閉塞することもありうる。 In order to solve this problem, it is possible to use a damper, but if the damper opening degree is manipulated to the extent that the concentration of solid particles changes, the flow rate of the conveying air will change significantly, causing conveyance inhibition. In severe cases, it may become blocked.
本考案は、かかる諸事情に鑑みなされたもの
で、固体粒子を空気搬送する配管から複数の分岐
配管へ固体粒子を分配する際、搬送空気流量に大
きな変化を与えることなく、固体粒子のみの流量
調整を行つて、各分岐配管へ略均一な濃度の固体
粒子を分配できるようにした流量調整ダンパーを
提供せんとするものである。 The present invention was developed in view of the above circumstances, and when distributing solid particles from a pipe that transports solid particles by air to multiple branch pipes, the flow rate of only solid particles can be reduced without making a large change in the flow rate of the transport air. It is an object of the present invention to provide a flow rate regulating damper which can be adjusted to distribute solid particles at a substantially uniform concentration to each branch pipe.
以下本考案による固体粒子空気搬送配管の分岐
部に於ける流量調整ダンパーの実施例を図によつ
て説明すると、第３図ａ，ｂに於いて、１０は固
体粒子空気搬送配管で、これのＹ字状の分岐部に
分岐配管１１，１１′の開口端に位置させる流量
調整ダンパー１２を回転軸１３にて支持してあ
り、回転軸１３の配管外部の軸端にはハンドル１
４を取付けてある。この流量調整ダンパー１２は
分岐配管１１，１１′の外壁側にのみ仕切板１５
を備え中央に大きな開口１６を設けて矩形枠状に
形成してある。尚、流量調整ダンパー１２の形状
は第４図に示す如く分岐配管１１，１１′の外壁
側にのみ仕切板１５を備え左右両側に開口１６
ａ，１６ｂを設けて逆Ｔ形状に形成しても良いも
のである。 Below, an embodiment of the flow rate adjusting damper at the branch part of the solid particle air conveying pipe according to the present invention will be explained with reference to the drawings. A flow rate adjustment damper 12 located at the open end of the branch pipes 11, 11' at the Y-shaped branch is supported by a rotating shaft 13, and a handle 1 is attached to the shaft end of the rotating shaft 13 outside the pipe.
4 is installed. This flow rate adjustment damper 12 is provided with a partition plate 15 only on the outer wall side of the branch pipes 11, 11'.
It is formed into a rectangular frame shape with a large opening 16 in the center. The shape of the flow rate adjustment damper 12 is as shown in FIG. 4, with a partition plate 15 only on the outer wall side of the branch pipes 11, 11' and openings 16 on both the left and right sides.
A, 16b may be provided to form an inverted T shape.
かように構成された本考案の流量調整ダンパー
によれば、固体粒子を配管１０を通して空気搬送
した際、分岐部よりも上流のベンド部等の影響に
より固体粒子が配管１０内で第２図ｂに示される
ように偏つて分布しても、分岐部まで空気搬送さ
れると、偏つて分布している固体粒子が流量調整
ダンパー１２の仕切板１５に案内されて配管１０
の軸中心線寄りに導かれる。そして搬送空気は分
岐部で固体粒子を分配するように分岐配管１１と
流量調整ダンパー１２の開口１６又は１６ａ，１
６ｂを通して分岐配管１１′に流れ、搬送空気流
量は分岐配管１１，１１′で大きな変化はないの
で、各分岐配管１１，１１′への固体粒子の流量
が調整され、略均一な濃度の固体粒子が分配され
ることになる。 According to the flow rate regulating damper of the present invention configured as described above, when solid particles are conveyed by air through the pipe 10, the solid particles are caused to flow inside the pipe 10 as shown in Fig. 2b due to the influence of the bend section upstream of the branch section. Even if the solid particles are unevenly distributed as shown in FIG.
is guided closer to the center line of the axis. The conveying air is then connected to the branch pipe 11 and the openings 16 or 16a, 1 of the flow rate adjusting damper 12 so as to distribute the solid particles at the branch part.
6b to the branch pipe 11', and since the conveying air flow rate does not change significantly between the branch pipes 11 and 11', the flow rate of solid particles to each branch pipe 11 and 11' is adjusted, and the solid particles have a substantially uniform concentration. will be distributed.
従つて、かかる流量調整ダンパー１２が第１図
に示される流動床燃焼炉１の燃料供給管５及び分
岐燃料管５′の分岐部に装備されている場合に
は、各燃料供給ノズル６から炉内に均一な濃度の
微粉炭及び石灰石が分配供給され、安定した流動
燃焼が行われることになる。 Therefore, when such a flow rate adjustment damper 12 is installed at the branch part of the fuel supply pipe 5 and the branch fuel pipe 5' of the fluidized bed combustion furnace 1 shown in FIG. Pulverized coal and limestone are distributed and supplied at a uniform concentration within the combustion chamber, resulting in stable fluidized combustion.
また穀物、セメント等の空気搬送管の分岐部に
装備されている場合には、多数の搬送先に略均一
な濃度でもつて穀物、セメント等を空気搬送でき
て、略等量の穀物、セメント等を分配供給でき
る。 In addition, if it is installed at a branch of an air conveyance pipe for grains, cement, etc., it is possible to air convey grains, cement, etc. to multiple destinations with approximately uniform concentration. can be distributed and supplied.
然して本考案の流量調整ダンパー１２は、配管
１０内での固体粒子の偏りが変化した場合、外部
からハンドル１４を回して該ダンパー１２を回動
し、固体粒子が偏つている外壁側の分岐配管の開
口端に位置させると、前記と同様に各分岐配管１
１，１１′への固体粒子の流量が調整され、略均
一な濃度の固体粒子が分配されることになる。 However, in the flow rate adjusting damper 12 of the present invention, when the unevenness of solid particles inside the pipe 10 changes, the damper 12 can be rotated by turning the handle 14 from the outside, and the damper 12 can be adjusted to the branch pipe on the outer wall side where the solid particles are unevenly distributed. When placed at the open end of each branch pipe 1 as above,
The flow rate of solid particles to 1 and 11' is adjusted to provide a substantially uniform concentration of solid particles.
以上詳記した通り本考案の流量調整ダンパーに
よれば、固体粒子を空気搬送している配管から複
数の分岐配管へ固体粒子を分配する際、搬送空気
流量に大きな変化を与えることなく、また閉塞等
のトラブルを生じさせることなく、固体粒子のみ
の流量調整を行うことができるので、各分岐配管
へ略均一な濃度の固体粒子を分配できるという優
れた効果がある。 As described in detail above, according to the flow rate adjustment damper of the present invention, when distributing solid particles from a pipe that is pneumatically transporting solid particles to multiple branch pipes, it is possible to avoid major changes in the transport air flow rate and prevent blockages. Since the flow rate of only the solid particles can be adjusted without causing such troubles, there is an excellent effect that the solid particles can be distributed at a substantially uniform concentration to each branch pipe.
第１図は流動床燃焼炉の燃料供給系統を示す
図、第２図ａは第１図の燃料供給系統の燃料供給
管内における微粉炭及び石灰石等の固体粒子の空
気搬送時の正常な分布状態を示す図、第２図ｂは
偏つて分布している状態を示す図、第３図ａは本
考案による固体粒子搬送配管の分岐部に於ける流
量調整ダンパーの一実施例を示す縦断面図、第３
図ｂは仝図ａのＡ−Ａ線断面図、第４図は他の実
施例の第３図ａのＡ−Ａ線断面図である。
１０……固体粒子空気搬送配管、１１，１１′
……分岐配管、１２……流量調整ダンパー、１３
……回転軸、１４……ハンドル、１５……仕切
板、１６，１６ａ，１６ｂ……開口。
Figure 1 shows the fuel supply system of a fluidized bed combustion furnace, and Figure 2a shows the normal distribution of solid particles such as pulverized coal and limestone in the fuel supply pipe of the fuel supply system shown in Figure 1 during air transport. FIG. 2b is a diagram showing a state in which the distribution is unevenly distributed, and FIG. , 3rd
FIG. 4 is a cross-sectional view taken along line A--A in FIG. 3a of another embodiment. 10...Solid particle air conveying piping, 11, 11'
... Branch piping, 12 ... Flow rate adjustment damper, 13
... Rotating shaft, 14 ... Handle, 15 ... Partition plate, 16, 16a, 16b ... Opening.
Claims (1)
管の開口端に位置できるように枢支され、且つ分
岐配管の外壁側にのみ仕切板を備えて成る固体粒
子空気搬送配管の分岐部に於ける流量調整ダンパ
ー。 At the branch part of the solid particle air conveying piping, the pipe is pivoted so that it can be positioned at the open end of the branch piping, and is provided with a partition plate only on the outer wall side of the branch piping. Flow rate adjustment damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2526782U JPS58128338U (en) | 1982-02-24 | 1982-02-24 | Flow rate adjustment damper at the branch part of solid particle air conveying piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2526782U JPS58128338U (en) | 1982-02-24 | 1982-02-24 | Flow rate adjustment damper at the branch part of solid particle air conveying piping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58128338U JPS58128338U (en) | 1983-08-31 |
| JPS625535Y2 true JPS625535Y2 (en) | 1987-02-07 |
Family
ID=30037243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2526782U Granted JPS58128338U (en) | 1982-02-24 | 1982-02-24 | Flow rate adjustment damper at the branch part of solid particle air conveying piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128338U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221616A (en) * | 1984-04-18 | 1985-11-06 | Babcock Hitachi Kk | Pulverized material supplying device |
-
1982
- 1982-02-24 JP JP2526782U patent/JPS58128338U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58128338U (en) | 1983-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2794686A (en) | Air flow conveying system | |
| US4131072A (en) | Apparatus for individual controlled distribution of powdered solid fuel to plural burning units | |
| JPS625535Y2 (en) | ||
| JPS6137930Y2 (en) | ||
| JPH02123025A (en) | High pressure transport device for granule | |
| DK161018B (en) | DEVICE FOR TRANSPORT OF SUBSTANTED PARTICLES | |
| JPS6023047B2 (en) | Method and device for distributing powder and granules in a gas stream | |
| USRE24716E (en) | Air flow conveying system | |
| JPS5936026A (en) | Distribution controller for air feeding pulverulent body | |
| JPH0452557Y2 (en) | ||
| CN216403139U (en) | Kiln dust and cement raw material warehousing system | |
| JPH0522504Y2 (en) | ||
| JPH053471Y2 (en) | ||
| JPH01167503A (en) | Fluidized bed type combustion device | |
| GB707690A (en) | Handling pulverulent materials | |
| SU1303518A1 (en) | Pneumatic tube for transporting loose materials | |
| JPS6246992Y2 (en) | ||
| JPS5982228A (en) | Flow controlling method of powdery granular matter | |
| JPH08319018A (en) | Skirt structure for belt conveyer | |
| JPH0622664Y2 (en) | Top hopper-Internal particle size distribution control device | |
| JPS6215251Y2 (en) | ||
| JPS5869625A (en) | Granular powder dividing and air-transporting apparatus | |
| JPS6332215A (en) | Air conveying distribution device for granular material | |
| JPH09133339A (en) | Variable distributor of pulverized coal carriage line | |
| JPS6320027A (en) | Feeding method for fine powder |