JPH0453896A - Coke hot powdering test apparatus - Google Patents
Coke hot powdering test apparatusInfo
- Publication number
- JPH0453896A JPH0453896A JP16000690A JP16000690A JPH0453896A JP H0453896 A JPH0453896 A JP H0453896A JP 16000690 A JP16000690 A JP 16000690A JP 16000690 A JP16000690 A JP 16000690A JP H0453896 A JPH0453896 A JP H0453896A
- Authority
- JP
- Japan
- Prior art keywords
- coke
- side wall
- reaction
- filled
- reaction vessel
- 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
- 239000000571 coke Substances 0.000 title claims abstract description 67
- 238000012360 testing method Methods 0.000 title claims description 9
- 238000000227 grinding Methods 0.000 title abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000010298 pulverizing process Methods 0.000 claims description 16
- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 10
- 238000002309 gasification Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012495 reaction gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、土に高炉内におけるコークスの高温性状の評
価に用いるコークスの熱間粉化試験装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a hot coke pulverization test device used for evaluating the high-temperature properties of coke in a soil blast furnace.
〈従来の技術〉
高炉用コークスの粉化特性は高炉操業に多大な影響を与
える。粉化特性が上昇すると炉内の通気抵抗が増加し、
装入物の棚つりゃスリップなどの装入物陣下異常を招き
、高炉操業に悪影響を及ぼす。従ってコークス製造部門
ではコークス粉化特性管理が重要な業務になっている。<Prior art> The pulverization characteristics of blast furnace coke have a great influence on blast furnace operation. As the powdering properties increase, the ventilation resistance inside the furnace increases,
This will lead to abnormalities in the bottom of the charge, such as charge racks and slips, which will have a negative impact on blast furnace operations. Therefore, managing coke pulverization characteristics has become an important task in coke production departments.
コークス粉化特性の評価方法の代表的なものの中にタン
ブラ−試験がありＪＩＳにも規定されている。この試験
方法は、例えば塊コークスをタンブラ−試験機内へ入れ
４００回転させた後の＋６ＩＩ１１歩留りをもってＴＩ
ごと称し、コークスの冷間での耐摩耗性を表す指数とし
て使用している。！９指数は高炉通気抵抗指数との対応
性がよく重要視されている。A tumbler test is a typical method for evaluating coke pulverization characteristics, and is also specified in JIS. In this test method, for example, lump coke is put into a tumbler tester and rotated 400 times, and the yield is +6II11.
It is used as an index to express the cold abrasion resistance of coke. ! The 9 index is considered important because of its correspondence with the blast furnace ventilation resistance index.
しかしながらＴＩｒは現状の管理指数の中では高炉との
対応性は良好であるもののＴｌ−のみで高炉炉況変動を
説明しきれない現象が一部存在するのも事実である。こ
れはＴＩＥ”が冷間の強度評価にとどまるためであり、
コークスが高炉内でガス化反応を受けて劣化する挙動が
考慮されていないためである。ガス化によるコークス強
度劣化を評価する方法としては、鉄と鋼、Ｖｏｌ、７０
、（１９８４） ｐ、４３等に示されている反応後強度
測定試験が知られている。However, although TIr has good correspondence with blast furnaces among the current management indices, it is also true that there are some phenomena in which fluctuations in blast furnace conditions cannot be explained by Tl- alone. This is because "TIE" is only a cold strength evaluation.
This is because the behavior of coke degrading as it undergoes a gasification reaction in a blast furnace is not taken into account. As a method for evaluating coke strength deterioration due to gasification, see Tetsu to Hagane, Vol. 70.
, (1984) p. 43, etc., is known.
しかし当方法の問題点はガス化処理した後にＴ型強度試
験をするところにある。このような試験方法ではガス化
反応が高温になるほど粒子内拡敞律速となり反応域が粒
子の表層に限定され劣化が粒子内部に至らないため強度
は高めに評価され真に高炉内での反応による粉化挙動を
評価しているとはいい雌いのである。However, the problem with this method is that the T-type strength test is performed after the gasification treatment. In this test method, the higher the temperature of the gasification reaction, the more the rate of expansion within the particles becomes rate-limiting, and the reaction region is limited to the surface layer of the particles, so deterioration does not reach the inside of the particles, so the strength is evaluated to be high, and it is true that the reaction is due to the reaction inside the blast furnace. It is a good idea to evaluate the powdering behavior.
このように従来技術ではガス化反応により生成した脆弱
層が表層にとどまるため、反応が拡散律速となる頭載で
は反応層がコークスの表層に限定されてしまうので、高
炉内のように反応で生成した脆弱層が衝撃で剥離され、
フレッシュな表層が常に形成されるといったコークスの
粉化挙動を精度よく評価することができなかった。In this way, in the conventional technology, the brittle layer generated by the gasification reaction stays at the surface layer, so in overhead loading where the reaction is diffusion-controlled, the reaction layer is limited to the surface layer of coke, so the brittle layer generated by the gasification reaction stays at the surface layer. The weakened layer is peeled off by impact,
It was not possible to accurately evaluate the pulverization behavior of coke, which shows that a fresh surface layer is always formed.
〈発明が解決しようとする課題〉
以上のような背景より本発明は、高炉内でのコークスの
粉化挙動をより精度よく評価することのできるコークス
熱間粉化試験装置を桿案することを目的とするものであ
る。<Problems to be Solved by the Invention> Based on the above background, the present invention aims to develop a coke hot pulverization test device that can more accurately evaluate the pulverization behavior of coke in a blast furnace. This is the purpose.
く課題を解決するための手段〉
本発明は、雰囲気ガスの流出入を可能ｔこした加熱炉内
に、円筒状の側壁とその下蓋及び該円筒内に出し入れ可
能な径を有する上蓋とからなる反応容器を設け、かつ該
側壁、該上蓋多び該下蓋それぞれの内壁面には充填され
たコークス塊を拘束する複数の突起を設け、かつ該上蓋
と該下蓋間には充填されたコークス塊を押圧する所定の
荷重が負荷されるように構成し、かつ該側壁に対して該
上蓋が充填されたコークス塊を拘束した状態で相対的に
回動できるようにしたことを特徴とするコークス熱間粉
化試験装置である。Means for Solving the Problems> The present invention provides a heating furnace that allows atmospheric gas to flow in and out, and includes a cylindrical side wall, a lower cover thereof, and an upper cover having a diameter that allows insertion and removal into the cylinder. A reaction vessel is provided, and a plurality of protrusions are provided on the inner wall surfaces of the side wall, the upper lid, and the lower lid to restrain the filled coke mass, and a space between the upper lid and the lower lid is provided with a plurality of projections for restraining the filled coke lump. It is characterized in that it is constructed so that a predetermined load is applied to press the coke lump, and that the upper lid can rotate relative to the side wall while restraining the filled coke lump. This is a hot coke pulverization test device.
く作 用〉
本発明装置は上述のように構成されているので、コーク
スのガス化処理と衝撃による粉化を同時に施せる。例え
ば、高温の炭酸ガス化雰囲気下で容器内に充填した塊コ
ークスに押圧荷重を与え、拘束固定した状態で容器を回
転させることで容器内のコークスが互いにゴリゴリとこ
すりあって粉化するので、あたかも高炉内でコークスが
粉化する如く、ガス化反応で生成した脆弱層が衝撃で剥
離され、フレッシュな表層が常に形成されるコークスの
粉化過程を再現することができる。Effect> Since the apparatus of the present invention is configured as described above, coke gasification treatment and impact pulverization can be performed simultaneously. For example, by applying a pressing load to lump coke filled in a container in a high-temperature carbon dioxide atmosphere and rotating the container in a restrained and fixed state, the coke in the container rubs against each other and becomes powder. It is possible to reproduce the coke pulverization process in which the brittle layer produced by the gasification reaction is peeled off by impact and a fresh surface layer is constantly formed, just as coke is pulverized in a blast furnace.
従って、本発明の試験装置により、コークスの高炉内で
の粉化特性を従来法より精度よく評価できるようになっ
た。Therefore, the test device of the present invention has made it possible to evaluate the pulverization characteristics of coke in a blast furnace more accurately than conventional methods.
次に実施例に基づいて本発明をより詳細に説明する。Next, the present invention will be explained in more detail based on examples.
〈実施例〉
本発明装置の特徴は反応容器内に充填された塊コークス
の上、底部をスパイク状突起で拘束した状態で容器を回
転させることにより、内部のコークスをガス化反応させ
ながら同時に回転粉化させることにある。<Example> The feature of the device of the present invention is that by rotating the container while the top and bottom of the lump coke filled in the reaction container is restrained by spike-shaped protrusions, the coke inside is gasified and rotated at the same time. The purpose is to turn it into powder.
第１図は本発明装置の一実施例で、その概略図である６
図において、５は加熱炉で、１２は電熱ヒーター、１３
は断熱耐火れんがであり、１は加熱炉５内に設けられた
反応容器である。FIG. 1 is an embodiment of the device of the present invention, and is a schematic diagram 6
In the figure, 5 is a heating furnace, 12 is an electric heater, and 13 is a heating furnace.
1 is a heat insulating refractory brick, and 1 is a reaction vessel provided in the heating furnace 5.
第２図は、反応容器１にコークス３を充填し、荷重を負
荷し、側壁１−１を回転さセたときの模式図である。点
線で示した位置がコークスの仮想摩擦面である。FIG. 2 is a schematic diagram when the reaction vessel 1 is filled with coke 3, a load is applied, and the side wall 1-1 is rotated. The position indicated by the dotted line is the virtual friction surface of coke.
反応容器１は円筒状の側壁１−１と該円筒内に出し入れ
可能な径を有する上蓋１−２及び下蓋１３から構成され
ている。そして側壁、上蓋及び下蓋の内壁面にはスパイ
ク状の突起１−４が設けられ充填したコークスをその上
部から所定の荷重で拘束できるようになっている。上蓋
１−２の上部にはシャフト１５が固定されており、所定
の荷重は６−１を支点とした重錘６によりシャフト１５
に伝達される。下蓋１−３の下部には同様にソヤフ目４
が固定されており、上ｌｌｌ−２からの押圧力を受けて
いる。なおシャフト１４はパイプで構成されておりその
下部で雰囲気ガスの導入口８に連なっている。８から導
入された雰囲気ガスはシャフ目４から、下蓋１−３に穿
たれたガス流出孔１１を通り、反応容器■中へ噴射され
る。そして加熱炉内５を通りサイクロン９に導がれる。The reaction container 1 is composed of a cylindrical side wall 1-1, an upper lid 1-2 and a lower lid 13 having a diameter that allows the cylindrical side wall 1-1 to be inserted into and removed from the cylinder. Spiked projections 1-4 are provided on the inner wall surfaces of the side walls, upper lid, and lower lid, so that the filled coke can be restrained from above with a predetermined load. A shaft 15 is fixed to the upper part of the upper cover 1-2, and a predetermined load is applied to the shaft 15 by a weight 6 with 6-1 as a fulcrum.
is transmitted to. Similarly, there is a soyaf eye 4 at the bottom of the lower lid 1-3.
is fixed and receives a pressing force from upper lll-2. The shaft 14 is composed of a pipe, and its lower part is connected to the atmospheric gas inlet 8. The atmospheric gas introduced from 8 passes through the shaft 4, passes through a gas outlet hole 11 formed in the lower lid 1-3, and is injected into the reaction vessel 1. Then, it passes through the heating furnace 5 and is guided to the cyclone 9.
また反応容器１の側壁１−１は円筒形で、その底部には
溝が設けられ、シャツ目４と同心円をなスハイプ１Ｇに
固定されており、パイプＩ６はべ／Ｌ４又は歯車１７を
介してモーター１７に接続されている。The side wall 1-1 of the reaction vessel 1 is cylindrical, and a groove is provided at the bottom of the side wall 1-1, which is fixed to a shaft 1G that is concentric with the shirt opening 4. It is connected to the motor 17.
なお、この例では反応容器１の側壁１−１を回転させる
構造としたが、側壁を固定させ上下の蓋部を回転させる
構造とすることもできる。Although this example has a structure in which the side wall 1-1 of the reaction container 1 is rotated, it is also possible to have a structure in which the side wall is fixed and the upper and lower lids are rotated.
また、この例では反応ガスの導入に下蓋を支持するパイ
プと下蓋に穿たれたガス流出孔を用いたが、加熱炉内下
部から直接反応ガスを噴出させるようにし、反応容器全
体をポーラスな構造としてもよい。In addition, in this example, a pipe supporting the lower lid and a gas outlet hole drilled in the lower lid were used to introduce the reaction gas, but the reaction gas was ejected directly from the lower part of the heating furnace, making the entire reaction vessel porous. It is also possible to have a similar structure.
なお、第３図（ａ）に反応容器の上蓋の断面図、［有］
）に平面図を示す、 １０が突起で１１がガス流出孔で
ある。In addition, Fig. 3(a) is a cross-sectional view of the upper lid of the reaction vessel.
) shows a plan view, 10 is a protrusion and 11 is a gas outflow hole.
次に第４図に側壁１−１と下Ｍ１−３が一体となった本
発明の他の実施例である反応容器を示す。Next, FIG. 4 shows a reaction vessel according to another embodiment of the present invention in which the side wall 1-1 and the lower M1-3 are integrated.
（ａ）は断面図、（ｂｌは平面図である。この場合側壁
１１に設けられた突起は円筒の内周高さ方向に設けられ
た４木の丸棒１−４である。第５図はこの反応容器にコ
ークス３を充填し、荷重を負荷し、側壁を回転させたと
きの模式図である。点線で示した位置がコークスの仮想
＊擦面である。(a) is a cross-sectional view, (bl is a plan view. In this case, the protrusion provided on the side wall 11 is a four-wooden round bar 1-4 provided in the height direction of the inner circumference of the cylinder. is a schematic diagram when this reaction vessel is filled with coke 3, a load is applied, and the side wall is rotated.The position indicated by the dotted line is the virtual rubbing surface of the coke.
本発明の反応容器の側壁は円筒形でその内壁に設けられ
た複数の突起１−４により、容器の回転に伴って隣接す
るコークスを連動させる働きがある。突起に隣接するコ
ークスの運動によりその半径方向に存在するコークスに
も運動が伝わり容器内中心部の拘束コークスの周囲を歯
車が回転するが如くゴリゴリと回転し始め衝撃粉化作用
を及ぼず。内部の回転運動が均一になることが重要であ
り、このためスパイクの長さは上部への荷重８ｋｇｆ、
反応容器１４０φでコークス粒径１０−１５ｍを使用し
た場合は、第３図に示すように放射状で等間隔に５φ×
５腸Ｈを２８個程度設け、コークス装入深さは１３０〜
１５０ｍ＋＋Ｈで良好な回転挙動を示す。The side wall of the reaction vessel of the present invention is cylindrical, and a plurality of protrusions 1-4 provided on the inner wall serve to interlock adjacent cokes as the vessel rotates. The motion of the coke adjacent to the protrusion causes the motion to be transmitted to the coke existing in the radial direction, and the coke begins to rotate roughly like a gear rotating around the bound coke at the center of the container without exerting an impact pulverization effect. It is important that the internal rotational movement be uniform, so the length of the spikes is such that the load on the top is 8kgf,
When using a coke particle size of 10-15 m in a reaction vessel of 140 φ, as shown in Figure 3, 5 φ
Approximately 28 5-holes H are provided, and the coke charging depth is 130~
Shows good rotational behavior at 150m++H.
下Ｍ１−３の底部には溝がありシャフト１４を経て回転
装置７へと連結されている。回転速度は非常にゆっくり
で高炉内での標準コークスの反応粉化量２５％と、内部
の回転状態から１ ＝０．５ｒｐ−が良好である０反応
温度、ガス雰囲気は任意の条件で設定すればよい。ガス
流速は反応容器内で発生したコークス粉が反応容器内に
滞留できる流速とすることが望ましい０本発明者らの実
験では管内流速２．５ｍ／ｓ以下であれば発生したコー
クス粉のサイクロン９側への移動は全く生しないことを
ｔｉ認している。The bottom of the lower M1-3 has a groove and is connected to the rotating device 7 via the shaft 14. The rotation speed is very slow, and the reaction temperature of 25% of the standard coke in the blast furnace is 0.5 rpm, which is good from the internal rotation condition.The reaction temperature and gas atmosphere can be set at any conditions. Bye. It is preferable that the gas flow velocity be set to a velocity that allows the coke powder generated in the reaction vessel to remain in the reaction vessel.In the experiments conducted by the present inventors, if the flow velocity in the pipe is 2.5 m/s or less, the generated coke powder will be removed from the cyclone9. I am fully aware that movement to the side does not occur at all.
コークスの粉化特性の評価はコークスの反応前重量Ｗ０
、反応後のコークス重量Ｗｌ、反応後の＋５閣のコーク
ス重量Ｗ！を秤量し、反応後の粉率ＰＩと反応率Ｒ１を
求めることにより行う。Evaluation of coke pulverization characteristics is based on the weight of coke before reaction W0
, coke weight after reaction Wl, coke weight of +5 kaku after reaction W! This is done by weighing and determining the powder ratio PI and reaction rate R1 after the reaction.
ＰＩ＝ Ｘ１００（％）
表１ 測定条件
表２ 粉率測定結果の比較
因みに、第４回に示す反応容器を用い、表１に示す測定
条件で製造条件の異なる８種の実炉コークスの反応粉化
実験を行った結果を表２に示す。PI= Table 2 shows the results of the experiment.
また、同コークス使用中の高炉で休風中の羽目から炉芯
のコークスを採取し粉率の測定およびガスサンプリング
結果から炉内でのコークスツルージョンロス量を１算で
求めた。結果を表２に示す。In addition, coke was sampled from the core of a blast furnace that was currently using the coke, and the amount of coke strusion loss in the furnace was calculated from the powder ratio measurement and gas sampling results. The results are shown in Table 2.
本発明で測定したコークス粉率（−５ｍｃｏ）の値と羽
目採取コー・クスの粉率は良好な対応関係があり、本発
明装置が高炉内のコークス粉化特性を精度よく評価でき
ることが実証された。There is a good correspondence between the value of the coke powder ratio (-5mco) measured by the present invention and the powder ratio of the coke sampled coke, and it has been demonstrated that the apparatus of the present invention can accurately evaluate the coke powder characteristics in the blast furnace. Ta.
〈発明の効果〉
本発明装置により、コークスの高炉内での粉化特性を実
高炉羽目からコークスサンプリングすることなしに簡便
に、かつ高精度で評価できるので高炉で必要とする品質
のコークスを確実に供給することができるようになり高
炉炉況の安定に寄与できる。<Effects of the Invention> With the apparatus of the present invention, the pulverization characteristics of coke in a blast furnace can be easily and highly accurately evaluated without sampling the coke from the actual blast furnace surface, ensuring that coke of the quality required in the blast furnace is produced. This will contribute to stabilizing the conditions in the blast furnace.
また、この試験装置を用いて得られたコークスの高温粉
化特性値を利用して、コークスの特性値を設定目標値に
制御するに必要なコークス製造条件（素材の選択、コー
クス炉形状等の各因子の単独または組合）を容易に見つ
け出せる効果も大きい。In addition, using the high-temperature pulverization characteristic values of coke obtained using this test device, we also investigated the coke production conditions (selection of materials, coke oven shape, etc.) necessary to control the coke characteristic values to the set target values. The effect of easily finding each factor (either alone or in combination) is also great.
第１図は本発明装置の全体図、第２図は本発明装置の作
動模式図、第３図（ａ）は反応容器の上蓋の側面図、（
ｂ）は突起の配置を示す平面図、第４図（ａ）は反応容
器の側面図、（支））は下蓋の突起の配置を示す平面図
、第５図は本発明装置の作動模式図である。
■・・・反応容器、
１−２・・・上蓋、
１−４・・・突起、
５・・・加熱炉、
６−１・・・支点、
８・・・反応ガス入口、
１１・・・ガス流出孔、
１３・・・耐火れんが、
１−１・・・側壁、
１−３・・・下蓋、
３・・・コークス、
６・・・重錘、
７・・・減速機モータ、
９・・・サイクロン、
１２・・・電気炉、
１４・・・ンヤフト、
Ｊ５・・・シャフト、
】６・・・パイプ。
り
図Figure 1 is an overall view of the apparatus of the present invention, Figure 2 is a schematic diagram of the operation of the apparatus of the present invention, Figure 3 (a) is a side view of the upper lid of the reaction vessel, (
b) is a plan view showing the arrangement of the protrusions, Fig. 4(a) is a side view of the reaction vessel, (support) is a plan view showing the arrangement of the protrusions on the lower lid, and Fig. 5 is a schematic diagram of the operation of the device of the present invention. It is a diagram. ■... Reaction container, 1-2... Top lid, 1-4... Protrusion, 5... Heating furnace, 6-1... Fulcrum, 8... Reaction gas inlet, 11... Gas outflow hole, 13... Refractory brick, 1-1... Side wall, 1-3... Lower cover, 3... Coke, 6... Weight, 7... Reducer motor, 9 ...cyclone, 12...electric furnace, 14...yaft, J5...shaft, ]6...pipe. diagram
Claims (1)
側壁とその下蓋及び該円筒内に出し入れ可能な径を有す
る上蓋とからなる反応容器を設け、かつ該側壁、該上蓋
及び該下蓋それぞれの内壁面には充填されたコークス塊
を拘束する複数の突起を設け、かつ該上蓋と該下蓋間に
は充填されたコークス塊を押圧する所定の荷重が負荷さ
れるように構成し、かつ該側壁に対して該上蓋が充填さ
れたコークス塊を拘束した状態で相対的に回動できるよ
うにしたことを特徴とするコークス熱間粉化試験装置。A reaction vessel consisting of a cylindrical side wall, a lower cover thereof, and an upper cover having a diameter that can be taken in and out of the cylinder is provided in a heating furnace that allows atmospheric gas to flow in and out. A plurality of protrusions are provided on the inner wall surface of each of the lower lids to restrain the filled coke lumps, and a predetermined load is applied between the upper lid and the lower cover to press the filled coke lumps. A coke hot pulverization test apparatus characterized in that the upper cover is able to rotate relative to the side wall while restraining the filled coke lump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16000690A JPH0453896A (en) | 1990-06-20 | 1990-06-20 | Coke hot powdering test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16000690A JPH0453896A (en) | 1990-06-20 | 1990-06-20 | Coke hot powdering test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453896A true JPH0453896A (en) | 1992-02-21 |
Family
ID=15705940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16000690A Pending JPH0453896A (en) | 1990-06-20 | 1990-06-20 | Coke hot powdering test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453896A (en) |
-
1990
- 1990-06-20 JP JP16000690A patent/JPH0453896A/en active Pending
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