JPS6397042U - - Google Patents
Info
- Publication number
- JPS6397042U JPS6397042U JP18912286U JP18912286U JPS6397042U JP S6397042 U JPS6397042 U JP S6397042U JP 18912286 U JP18912286 U JP 18912286U JP 18912286 U JP18912286 U JP 18912286U JP S6397042 U JPS6397042 U JP S6397042U
- Authority
- JP
- Japan
- Prior art keywords
- coal
- pulverized coal
- flow rate
- angle
- control device
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 claims description 28
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 3
- 239000000446 fuel Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000004449 solid propellant Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Feeding And Controlling Fuel (AREA)
Description
第１図は本考案に係る石炭粉砕制御装置の一実
施例の制御系統を示す図、第２図は第１図微粉炭
流量調節ダンパ部の平面図及び側面図、第３図は
微粉炭の衝突角と衝突面の摩耗量を示す特性図、
第４図は従来技術の石炭粉砕制御装置の系統図、
第５図は従来技術のボイラ負荷と石炭粉砕機の運
転台数の関係を示す特性図、第６図は各微粉炭管
内の流速分布を示す特性図、第７図は炉幅方向の
変位と再熱器出口蒸気ヘツダのメタル温度との関
係を示す特性図、第８，９図は従来の流量調節部
を示す断面図である。
１……ボイラ、２……石炭粉砕機、３……分配
器、５……微粉炭管、６……微粉炭バーナ、７…
…一次空気、８……微粉炭流量調節ダンパ、９…
…微粉炭流量測定装置、１０……給炭機、１１…
…バンカ、１２……微粉炭流量制御装置、１３…
…自動燃焼制御及び粉砕制御装置、１４……一次
空気量調節ダンパ、１５……微粉炭管ハウジング
、１６……セラミツクス、１７……ベーン、１８
……軸、１９……レバー、２０……ロツド、２１
……縮小部。
Fig. 1 is a diagram showing a control system of an embodiment of the coal pulverization control device according to the present invention, Fig. 2 is a plan view and side view of the pulverized coal flow rate regulating damper part shown in Fig. Characteristic diagram showing the collision angle and the amount of wear on the collision surface,
Figure 4 is a system diagram of a conventional coal crushing control device.
Figure 5 is a characteristic diagram showing the relationship between the boiler load and the number of operating coal crushers in the conventional technology, Figure 6 is a characteristic diagram showing the flow velocity distribution in each pulverized coal pipe, and Figure 7 is a characteristic diagram showing the displacement in the width direction of the furnace. A characteristic diagram showing the relationship between the metal temperature of the steam header at the outlet of the heater, and FIGS. 8 and 9 are cross-sectional views showing a conventional flow rate adjusting section. 1... Boiler, 2... Coal crusher, 3... Distributor, 5... Pulverized coal pipe, 6... Pulverized coal burner, 7...
...Primary air, 8...Pulverized coal flow rate adjustment damper, 9...
...Pulverized coal flow rate measuring device, 10...Coal feeder, 11...
... Bunker, 12... Pulverized coal flow rate control device, 13...
... Automatic combustion control and crushing control device, 14 ... Primary air amount adjustment damper, 15 ... Pulverized coal pipe housing, 16 ... Ceramics, 17 ... Vane, 18
...shaft, 19 ... lever, 20 ... rod, 21
...reduced section.
Claims (1)
機と、微粉砕した燃料を空気と共に輸送しボイラ
等の燃焼装置に供給する、複数の微粉炭管とを有
する石炭粉砕制御装置において、前記微粉炭管に
流量測定装置及びその流量測定信号により、開度
が０〜１００％まで連続して調節可能な微粉炭流
量調整装置を有することを特徴とする石炭粉砕制
御装置。 ２ 前記微粉炭流量測定信号により、バーナカツ
トするように構成されていることを特徴とする実
用新案登録第１項記載の石炭粉砕制御装置。 ３ 前記微粉炭流量測定信号により、バーナカツ
ト時の微粉炭の流量のバラツキを調整するように
構成されていることを特徴とする実用新案登録第
１項乃至第２項記載の石炭粉砕制御装置。 ４ 前記微粉炭流量調整装置は、ハウジングと、
前記ハウジング内に互いに対向して勝手違いに配
設され耐摩耗材をライニングし、微粉炭の流動方
向に対向する面と前記流動方向とのなす角度αが
１０度以上４０度以下の任意角度に調節設定可能
なベーンと、前記流動方向に対し、少なくとも角
度α以下の角度をなすハウジング内壁面を備えて
いることを特徴とする実用新案登録第１項記載の
石炭粉砕制御装置。 ５ 前記ベーンの前記面の裏面は、微粉炭流動の
瞬間停止時において、鉛直方向に対し前記角度α
以下の角度を保つように構成されていることを特
徴とする実用新案登録第１項記載の石炭粉砕制御
装置。[Scope of Claim for Utility Model Registration] 1. Includes a coal pulverizer that dries, pulverizes, and classifies solid fuel, and a plurality of pulverized coal pipes that transport the pulverized fuel with air and supply it to a combustion device such as a boiler. Coal pulverization control device, characterized in that the pulverized coal pipe has a flow rate measuring device and a pulverized coal flow rate adjusting device whose opening degree can be continuously adjusted from 0 to 100% based on the flow rate measurement signal. Device. 2. The coal pulverization control device according to item 1 of the utility model registration, characterized in that it is configured to perform burner cutting in response to the pulverized coal flow rate measurement signal. 3. The coal pulverization control device as set forth in paragraphs 1 and 2 of the utility model registration, characterized in that it is configured to adjust variations in the flow rate of pulverized coal during burner cutting using the pulverized coal flow rate measurement signal. 4 The pulverized coal flow rate adjustment device includes a housing;
They are arranged oppositely in the housing and lined with a wear-resistant material, and the angle α between the surface facing the flow direction of the pulverized coal and the flow direction is adjusted to an arbitrary angle of 10 degrees or more and 40 degrees or less. The coal crushing control device according to item 1 of the Utility Model Registration, characterized in that it comprises a settable vane and an inner wall surface of the housing forming an angle of at least an angle α or less with respect to the flow direction. 5 The back surface of the surface of the vane is at the angle α with respect to the vertical direction when the pulverized coal flow stops instantaneously.
A coal crushing control device according to item 1 of the utility model registration, characterized in that it is configured to maintain the following angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18912286U JPS6397042U (en) | 1986-12-10 | 1986-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18912286U JPS6397042U (en) | 1986-12-10 | 1986-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6397042U true JPS6397042U (en) | 1988-06-23 |
Family
ID=31141132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18912286U Pending JPS6397042U (en) | 1986-12-10 | 1986-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6397042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183715A (en) * | 1988-11-28 | 1990-07-18 | Babcock & Wilcox Co:The | Pulverized coal flow rate controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221616A (en) * | 1984-04-18 | 1985-11-06 | Babcock Hitachi Kk | Pulverized material supplying device |
-
1986
- 1986-12-10 JP JP18912286U patent/JPS6397042U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221616A (en) * | 1984-04-18 | 1985-11-06 | Babcock Hitachi Kk | Pulverized material supplying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183715A (en) * | 1988-11-28 | 1990-07-18 | Babcock & Wilcox Co:The | Pulverized coal flow rate controller |
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