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51 巻, 8 号
選択された号の論文の9件中1～9を表示しています
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下村 明1972 年 51 巻 8 号 p. 617
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (195K) -
燃料協会JIS原案作成委員会 , 木村 英雄, The Fuel Society of Japan Chairman1972 年 51 巻 8 号 p. 618-627
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーJapanese Industrial Standard, M 8801-4963 (Methods for testing of coal) and K 2151-1963 (Methods for testing of coke) were partly revised and published under the authority of the General Committee on 1 st April, 1972.
Some new points revised and two new subjects organized are mainly as follows:
1. JIS M8801-1972 (Coal)
1) Size analysis test
Two millimeter size analysis was adopted newly to present method for coal of power station use.
2) Crucible swelling test
It was adopted to determine the crucible swelling number from the calibration curve between areas of the standard profiles and swelling numbers, when the shape of residue (button) is irregular or the swelling number exceeds nine. The electrical heating method (same to ISO R 501) was added newly to present gas heating method.
3) Plasticity test
Gieseler plastometer method (nearly equal to ASTM D 1812-66, D 2639-67 T) was newly organized as one of the new subjects.
4) Fusibility test of coal ash
Use of large cone size (same to ASTM D 1857-64 T) was recognized for convenience of observation.
5) Grindability test
Hardgrove method (nearly equal to ASTM D 409-51) was newly organized as one of the new subjects by the wish of power station side.
2. JIS K 2151-1972 (Coke)
1) Apparent density test
Volume method was added newly to present weight method (nearly equal to ASTM D167).
2) Drum strength test
Two methods of drum test and tumbler test (same to ASTM D 294) have been contained in this term. Two new subjects of 150 r. p.m. method and uniform-size coke method were newly appointed in the drum test.
3) Reactivity test
It was recognized to use the analytical apparatus such as gas chromatograph and infrared spectrometer for CO gas analyser.抄録全体を表示PDF形式でダウンロード (1394K) -
福山 辰夫, 宮津 隆, 木元 三郎1972 年 51 巻 8 号 p. 628-638
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーTesting method for plastic properties of coal by the Gieseler Plastometer has beeng employed in the revised JIS M 8801-1972 (Testing methods for coal).
Therefore, we studied on the instrumental factors which would affect the data of the Gieseler Plastometer, one of the quite useful informations to Japanese coke industries in evaluating the quality of metallurgical coals.
Informations obtained are as follows:
1) The physical condition of a joining part between crucible and stirrer play very important role on plastic properties. Although their qualities do affect plasticities slightly.
2) The stirrer shall be replaced after wear to the extent that the diameter of rabble arms are reduced to 1.5 mm, because a maximum fluidity increases rapidly as soon as they are worn to less than 1.4 mm in their diameters.
3) With regard to the sample size, the significant difference of the maximum fluidity is observed between two samples of-35 mesh and-60 mesh. Overcrushing, therefore, must be avoided carefully in sample preparation.
4) As the decrease of the maximum fluidity can be recognized after about one month from sample preparation, the measurement should be done as soon as possible when a sample is prepared.
5) The repeatability in same laboratory obtained by the interlaboratory experiment was superior to the tolerance specified in ASTM D 1812-69, however, the reproducibility between different laboratories was an unsatisfactory result, probably due to the differences in the apparatus of each laboratory.抄録全体を表示PDF形式でダウンロード (997K) -
桐谷 義男, 露口 亨夫, 仁礼 尚道1972 年 51 巻 8 号 p. 639-644
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーA new type pitch produced from crude petroleum was studied with a view to utilizing for production of metallurgical coke. This pitch has 0. 5-0. 6 C/H, about 200°C softeningpoint and high aromaticity. Adding to a charge coal for coke oven, the pitch increase the strength of the coke produced, and furthermore it was find that the qualities of the coke produced from some non coking coals are as good as some cokes from strongly coking coals.
Moreover, it seems to the authors that application of hot briquetting technique to this pitch would has an advantages of the method in simple blending of the pitch to coals.
On these results, the authors suggested some examples of system for production of “so called modified strongly coking coal” from non coking coals, and discussed these process.抄録全体を表示PDF形式でダウンロード (548K) -
井田 四郎, 奥原 捷晃, 山口 徳二1972 年 51 巻 8 号 p. 645-659
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーWe have studied the following three problems in order to develope the continuous formed coke process.
(1) Investigation of formed coke process conducted through the world.
(2) Comparison of characteristics of various kinds of formed coke.
(3) Study on size of formed coke.
As the results, we have recognized the following three points.
(1) Studies on formed coke are putting in operation through the world, but have not been successed yet.
(2) Formed cokes made in various countries generally are superior in impact strength at room temperature but are high in their reactivity to CO2 which means that they tend to affect degradation at high temperature. We considered that an effective methods of improving the reactivity are systematic studies of the heating pattern and gas atomosphere conditions during carbonization, briquetting conditions and blending ratis of raw briquette etc.
(3) We estimated that desired size of formed coke are 60-63cc by the results of calculation and experimental model.抄録全体を表示PDF形式でダウンロード (2878K) -
適正原料粉の判定について山口 潔, 丸山 勝久, 熊井 順二郎, 木村 英雄1972 年 51 巻 8 号 p. 660-667
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーWe have been experements on the manufacture of formed coke by a pilot plant of 150 kg/h.
The purpose of this investigation was undertook to elucidate the property of suitable material coal to the Hot-Briquetting method, on the basis of operation results of the pilot plant.
The basis of the property of suitable coal were restricted to the material coal in case that manufactured formed coke of more than 90% Drum Index and more than 60% Micro Strength Index.
The results obtained are as Mows.
1. Maximum Fluidity by Gieseler Plastometer test is within the 5 to 50 ddpm.
2. Free Swelling Index is within the 11/2 to 21/2 (±1/2).
3. Roga Drum Index (RDI15001) in more than 83%.
4. The volatile matter is desirable as low as possible, but it has a limit. It may be said that estimation value of lower limit is about 21. 7±1%.抄録全体を表示PDF形式でダウンロード (912K) -
菅沢 清志, 仁礼 尚道, 田坂 鋼二, 角南 好彦, 日野 契芳, 坂井 武雄, 安部 信義, 篠田 正隆1972 年 51 巻 8 号 p. 668-674
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーThe production of a formed coke in excellent quality has been realized in use of a non-coking coal as the main raw materials.
As the result of the experimental use of this formed coke for the No.2 blast furnace in Kokura Steel Works of Sumitomo Metal Industries, Ltd. it has been proved that it is not inferior to the conventional coke for same.
We intend to study for enlarging coke oven and to make efforts to materialize the economic rationalization of a formed coke for a large blast furnace.抄録全体を表示PDF形式でダウンロード (2908K) -
桐谷 義男1972 年 51 巻 8 号 p. 675-677
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (492K) -
1972 年 51 巻 8 号 p. 683-687
発行日: 1972/08/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (606K)
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