CN103144866A - Novel coal scuttle - Google Patents
Novel coal scuttle Download PDFInfo
- Publication number
- CN103144866A CN103144866A CN2013100948298A CN201310094829A CN103144866A CN 103144866 A CN103144866 A CN 103144866A CN 2013100948298 A CN2013100948298 A CN 2013100948298A CN 201310094829 A CN201310094829 A CN 201310094829A CN 103144866 A CN103144866 A CN 103144866A
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- Prior art keywords
- coal
- wall
- point
- contour line
- brachistochrone
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Abstract
The invention discloses a novel coal scuttle, and an inner wall of the coal scuttle is an integral curved surface obtained by rotating a contour line for a circle around a center line. The novel coal scuttle is characterized in that an upper end point of the contour line is a point on the inner edge of an outlet end of a raw coal bunker, a lower end point of the contour line is a point on the inner edge of an inlet end of a coal feeder, and the contour line is brachistochrone which passes between the upper end point and the lower end point. The brachistochrone is adopted as the contour line, so that the movement of coal granules on a wall surface is fastest, the wall friction and extrusion of raw coal and the inner wall of the coal scuttle are reduced, the adhering of the raw coal to the inner wall is reduced, and normal operation of an equipment system is guaranteed.
Description
Technical field
The present invention relates to material storing equipment, relate in particular to a kind of novel coal bunker.
Background technology
In production link in the industries such as electric power, building materials, the energy, chemical industry, the storage that usually relates to material such as grinds at the step.The pulverized coal preparation system in power plant for example, the raw coal that is stored in run coal bin enters feeder through coal bunker, then flows to coal mill by feeder and grind.It is conical that existing coal bunker mostly is, and connects the feeder of top coal bunker and bottom.Raw coal is motion from top to bottom in coal bunker, and due to the variation of coal bunker sectional area, kinematic velocity is progressively accelerated, smoothly by whole coal bunker.But near the raw coal wall is due to effects such as wall friction, extruding, the motion of wall coal grain is slow, even attach or anchor on wall, and the raw coal that affects core flows, even cause the raw coal of whole coal bunker to stop up, form that " chute blockage " with " disconnected coal ", has influence on the normal operation of equipment, even causes safety misadventure when serious.At this moment, must beat by external force, raw coal and wall are broken away from, recover the normal operation of the athleticism restorer system of coal grain.
Summary of the invention
The present invention provides a kind of novel coal bunker in order to solve the prior art above shortcomings; Adopt brachistochrone as the shape line, can make the motion of the coal grain on wall the most fast, reduced wall friction, the extruding of raw coal and coal bunker inwall, reduced raw coal at the attaching of inwall, the normal operation of assurance device systems.
The objective of the invention is to adopt following technical proposals to realize:
A kind of novel coal bunker, the complete curved surface that the inwall of described coal bunker is rotated a circle and obtains around line of centers by an outline line, the upper extreme point of described outline line is the point on the exit end inward flange of run coal bin, the lower extreme point of outline line is the point on feeder arrival end inward flange, and described outline line is by the brachistochrone between upper extreme point and lower extreme point.
Beneficial effect of the present invention:
Adopt brachistochrone as coal bunker shape line, wall friction, the extruding of raw coal and coal bunker inwall have been reduced, reduced raw coal attaching at inwall, can make the coal grain motion on wall the most fast, avoid raw coal to stop up and form chute blockage, disconnected coal, overcome the wall coal grain problem slowly of moving, guarantee the normal operation of device systems.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein, 1. line of centers, 2. outline line.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
A kind of novel coal bunker, the complete curved surface that the inwall of described coal bunker is rotated a circle and obtains around line of centers 1 by an outline line 2, it is characterized in that, the upper extreme point A of described outline line 2 is the point on the exit end inward flange of run coal bin, the lower extreme point B of outline line is the point on feeder arrival end inward flange, and described outline line is by the brachistochrone between upper extreme point A and lower extreme point B.
During use, the exit end of run coal bin is connected with the upper surface of coal bunker, and the lower surface of coal bunker is connected with the arrival end of feeder, and raw coal flows to coal mill and grinds by coal bunker, coal bunker, feeder, enters next procedure.Because the coal bunker inwall is to be rotated a circle around line of centers by brachistochrone to form, brachistochrone is by the fastest route in eminence whereabouts on the coal bunker inner wall surface, so adopt brachistochrone can make the motion of the coal grain on wall the most fast as the shape line, chute blockage and the disconnected coal of farthest avoiding raw coal stop up to form, thus overcome the wall coal grain problem slowly of moving.Reduce wall friction, the extruding of raw coal and coal bunker inwall, reduced raw coal the attaching of inwall, guaranteed the normal operation of device systems.
Although above-mentioned by reference to the accompanying drawings to the invention the specific embodiment be described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (1)
1. novel coal bunker, the complete curved surface that the inwall of described coal bunker is rotated a circle and obtains around line of centers by an outline line, it is characterized in that, the upper extreme point of described outline line is the point on the exit end inward flange of run coal bin, the lower extreme point of outline line is the point on feeder arrival end inward flange, and described outline line is by the brachistochrone between upper extreme point and lower extreme point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100948298A CN103144866A (en) | 2013-03-22 | 2013-03-22 | Novel coal scuttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100948298A CN103144866A (en) | 2013-03-22 | 2013-03-22 | Novel coal scuttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103144866A true CN103144866A (en) | 2013-06-12 |
Family
ID=48543260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100948298A Pending CN103144866A (en) | 2013-03-22 | 2013-03-22 | Novel coal scuttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103144866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380885A (en) * | 2017-09-13 | 2017-11-24 | 魏玉昊 | Prompt drop helical structure |
Citations (4)
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|---|---|---|---|---|
| CN102628591A (en) * | 2012-04-24 | 2012-08-08 | 上海艾能电力工程有限公司 | Improved structure of raw coal cabin of circulating fluidized bed boiler |
| CN202429562U (en) * | 2011-12-13 | 2012-09-12 | 中国轻工业长沙工程有限公司 | Non-blockage deformed coal bunker |
| CN202499426U (en) * | 2012-03-16 | 2012-10-24 | 煤炭工业郑州设计研究院有限公司 | Anti-blocking type coal bunker funnel |
| CN203111839U (en) * | 2013-03-22 | 2013-08-07 | 山东电力集团公司电力科学研究院 | Novel coal hopper |
-
2013
- 2013-03-22 CN CN2013100948298A patent/CN103144866A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202429562U (en) * | 2011-12-13 | 2012-09-12 | 中国轻工业长沙工程有限公司 | Non-blockage deformed coal bunker |
| CN202499426U (en) * | 2012-03-16 | 2012-10-24 | 煤炭工业郑州设计研究院有限公司 | Anti-blocking type coal bunker funnel |
| CN102628591A (en) * | 2012-04-24 | 2012-08-08 | 上海艾能电力工程有限公司 | Improved structure of raw coal cabin of circulating fluidized bed boiler |
| CN203111839U (en) * | 2013-03-22 | 2013-08-07 | 山东电力集团公司电力科学研究院 | Novel coal hopper |
Non-Patent Citations (5)
| Title |
|---|
| 吴佩萱: ""最速降线"问题-数学史上最激动人心的一次公开挑战", 《数学通报》 * |
| 周嘉炜、曹炳阳、过增元: "具有黏滞阻力时的最速降线", 《力学与实践》 * |
| 尤明庆: "最速降线求解和摩擦力影响的研究", 《河南理工大学学报》 * |
| 张正华、赵祥涛、张明学、辛烁军: "最速降线在粮食仓储物流中的应用", 《工程设计》 * |
| 林鹏;兰云贤;刘秀虎: "理想仓斗曲线的设计探讨", 《四川畜牧兽医学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380885A (en) * | 2017-09-13 | 2017-11-24 | 魏玉昊 | Prompt drop helical structure |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130612 |