JPS63172793A - Solid fuel-water slurry - Google Patents
Solid fuel-water slurryInfo
- Publication number
- JPS63172793A JPS63172793A JP62005841A JP584187A JPS63172793A JP S63172793 A JPS63172793 A JP S63172793A JP 62005841 A JP62005841 A JP 62005841A JP 584187 A JP584187 A JP 584187A JP S63172793 A JPS63172793 A JP S63172793A
- Authority
- JP
- Japan
- Prior art keywords
- solid fuel
- water slurry
- standard deviation
- sigmag
- slurry
- 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.)
- Granted
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000007787 solid Substances 0.000 title abstract 2
- 239000004449 solid propellant Substances 0.000 claims abstract description 86
- 238000009826 distribution Methods 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- -1 polyoxyethylene Polymers 0.000 claims abstract description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002006 petroleum coke Substances 0.000 claims abstract description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 5
- 239000011335 coal coke Substances 0.000 claims abstract description 5
- 239000003208 petroleum Substances 0.000 claims abstract description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 41
- 239000003245 coal Substances 0.000 claims description 8
- 150000003871 sulfonates Chemical class 0.000 claims description 5
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 150000008054 sulfonate salts Chemical class 0.000 abstract 2
- 239000007859 condensation product Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000000446 fuel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011362 coarse particle Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 208000005156 Dehydration Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- YWPOLRBWRRKLMW-UHFFFAOYSA-M sodium;naphthalene-2-sulfonate Chemical compound [Na+].C1=CC=CC2=CC(S(=O)(=O)[O-])=CC=C21 YWPOLRBWRRKLMW-UHFFFAOYSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、高濃度の固体燃料・水スラリーに関し、更に
詳しくは、高濃度で、かつ低粘度であって、輸送、貯蔵
、取扱などが容易な固体燃料赤水スラリーに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a highly concentrated solid fuel/water slurry, and more specifically, to a highly concentrated solid fuel/water slurry that is highly concentrated and has a low viscosity and is difficult to transport, store, and handle. Concerning easy solid fuel red water slurry.
［従来技術及びその問題点］
近年、エネルギー源として、石炭、石油コークスなどの
固体燃料が見直されている。しかしながら、固体燃料は
、石油のような液体燃料と比較して、輸送や貯蔵を円滑
に行うことが困難であり、また取り扱いに際しても作業
能率が悪いと言う欠点がある。[Prior art and its problems] In recent years, solid fuels such as coal and petroleum coke have been reconsidered as energy sources. However, solid fuels have disadvantages in that, compared to liquid fuels such as petroleum, it is difficult to transport and store them smoothly, and the efficiency of handling is low.
これらの欠点を改善するために、固体燃料を微粉状にし
て水中に分散させた固体燃料・水スラリーの開発が進め
られている。しかし、固体燃料・水スラリーにおいて、
固体燃料の濃度を上げると、固体燃料・水スラリーの粘
度が著しく高くなり、流動性が失われ、取扱いや、管路
輸送などが困難になる。また、固体燃料ｅ水スラリーの
粘度を下げるために、固体燃料の濃度を下げると、輸送
効率が低下し、さらに燃料やガス化原料として使用する
ためには、事前に脱水処理を必要とするなどの難点があ
る。In order to improve these drawbacks, progress is being made in developing a solid fuel/water slurry in which solid fuel is pulverized and dispersed in water. However, in solid fuel/water slurry,
When the concentration of solid fuel is increased, the viscosity of the solid fuel/water slurry increases significantly, resulting in loss of fluidity and difficulty in handling, pipe transportation, etc. In addition, if the concentration of solid fuel is lowered to lower the viscosity of the solid fuel e-water slurry, the transportation efficiency will decrease, and furthermore, dehydration treatment will be required in advance in order to use it as a fuel or gasification raw material. There are some drawbacks.
固体燃料・木スラリーを工業的に使用するためには、固
体燃料・水スラリー中の固体燃料の含有量を高濃度に維
持しながら、しかもその粘度を低くする必要がある。高
濃度でかつ低粘度の固体燃料・水スラリーの製造方法と
しては、幾何標準偏差（σｇ）の値が大きくなるように
固体燃料の粒度分布をｇＲ整する方法が提案されている
（特開昭５９−１５４８６号公報参照）、この方法にお
いて、固体燃料粒子の幾何標準偏差の値を大きくするた
めには、該粒子の粒度分布の幅を広くする必要があり、
そのためには、該粒子の粗粒分および／または超微粒子
分の量を増大させることが必要となる。そして、粗粒分
を増大させることは、貯蔵、輸送時の安定性の低下、噴
霧時におけるバーナーなどの閉塞、燃焼時における未燃
焼分の増加など種々の好ましくない現象の原因となり、
一方、超微粒子分を増大させることは、固体燃料粒子表
面積の著しい増大にともなって、その分散のために多量
の添加物を必要とし、粉砕に要する動力の増大すると言
う欠点がある。また、固体燃料の粒径を非常に小さくす
ること自体極めて困難なことである。In order to use the solid fuel/wood slurry industrially, it is necessary to maintain the solid fuel content in the solid fuel/water slurry at a high concentration while reducing its viscosity. As a method for producing solid fuel/water slurry with high concentration and low viscosity, a method has been proposed in which the particle size distribution of solid fuel is adjusted to gR so that the value of the geometric standard deviation (σg) becomes large (Japanese Patent Application Laid-Open No. 59-15486), in this method, in order to increase the value of the geometric standard deviation of solid fuel particles, it is necessary to widen the width of the particle size distribution of the particles,
For this purpose, it is necessary to increase the amount of coarse particles and/or ultrafine particles. Increasing the coarse particle content causes various undesirable phenomena such as a decrease in stability during storage and transportation, blockage of burners during spraying, and an increase in unburned content during combustion.
On the other hand, increasing the ultrafine particle content has the drawback that the surface area of the solid fuel particles increases significantly, requiring a large amount of additives for dispersion, and increasing the power required for pulverization. Further, it is extremely difficult to reduce the particle size of solid fuel to a very small size.
［発明の目的］
本発明は、前記のような従来技術が有する欠点のない、
工業的に容易に製造することができ、しかも有利に使用
することができる、固体燃料を高濃度で含有し、かつ低
粘度である固体燃料・水スラリーを提供することを目的
とする。[Object of the Invention] The present invention is free from the drawbacks of the prior art as described above.
It is an object of the present invention to provide a solid fuel/water slurry that can be industrially easily produced and advantageously used, contains a high concentration of solid fuel, and has a low viscosity.
［発明の構成］
本発明は、石炭及び／またはコークスからなる固体燃料
を含む固体燃料・水スラリーにおいて、該固体燃料を５
０〜８０＠量％含有し、該固体燃料は、その粒子の幾何
平均径（ＤＰ５０）が、７４ＩＬｍ以下であり１粒度分
布が、対数正規分布における上側幾何標準偏差（σｇ÷
）と下側幾何標準偏差（σｇ−）との算術平均が６〜１
２の範囲内の値であり、それらの比（σｇ◆／σｇ−）
が０．６以下の範囲の値であるように調整されているこ
とを特徴とする固体燃料・水スラリーにある。[Configuration of the Invention] The present invention provides a solid fuel/water slurry containing a solid fuel made of coal and/or coke, in which the solid fuel is
0 to 80% by mass, the solid fuel has a geometric mean diameter (DP50) of particles of 74 ILm or less, and a particle size distribution of the upper geometric standard deviation (σg ÷
) and the lower geometric standard deviation (σg-) is 6 to 1.
2, and their ratio (σg◆/σg−)
The solid fuel/water slurry is characterized in that the solid fuel/water slurry is adjusted to have a value in a range of 0.6 or less.
本発明において使用される「幾何平均径」及び「幾何標
準偏差」の各用語は、粉末の粒度及びその分布を規定す
るために一般に使用されている用語であり、対数正規分
布での粒径と積算通過重量百分率との関係から、次のよ
うに定義される。The terms "geometric mean diameter" and "geometric standard deviation" used in the present invention are terms generally used to define the particle size of powder and its distribution, and are the terms that are generally used to define the particle size of powder and its distribution. From the relationship with the cumulative passing weight percentage, it is defined as follows.
幾何平均径（ＤＰ５Ｇ）：
積算通過重量百分率が５０％に相当する粒径上側幾何標
準偏差（σｇ＋）：
Ｊｌｋｌ通算重量百分率が８４．１３％に相当する粒径
（ＤＰ÷σ）と幾何平均径（ＤＰ５０）との比（ＤＰ÷
σ／Ｄｐ５０）
下側幾何標準偏差（σｇ−）：
幾何平均径（ＤＰ５０）と、積算通過重量百分率が、１
５．８７％に相当する粒径との比（ＤＰ５０／Ｄｐ−σ
）
本発明における固体燃料は、石炭及び／または石油コー
クスである０石炭及び石油コークスとしては、特に限定
されず、通常燃料として一般に使用されているものを使
用することが出来る０石炭として、灰分が約６％以下で
あるようなものが特に好ましい、脱灰処理された石炭、
例えば、灰分約１０ｇ１量％含有する石炭を、例えば重
液選炭法などそれ自体公知の方法で脱灰処理した約６重
量％以下の石炭も好適に使用することができる。また、
石油コークスは、一般に石油精製工程から副生ずる石油
コークスであり、通常灰分を０．１〜１重量％含有する
ものが使用される。Geometric mean diameter (DP5G): Particle diameter corresponding to a cumulative passing weight percentage of 50% Upper geometric standard deviation (σg+): Particle diameter corresponding to a Jlkl total weight percentage of 84.13% (DP÷σ) and geometric mean diameter (DP50) ratio (DP÷
σ/Dp50) Lower geometric standard deviation (σg-): Geometric mean diameter (DP50) and integrated passing weight percentage are 1
The ratio to the particle size corresponding to 5.87% (DP50/Dp-σ
) The solid fuel in the present invention is coal and/or petroleum coke, and is not particularly limited. Coal and petroleum coke that are commonly used as fuel can be used. Deashed coal, particularly preferably such that it is less than or equal to about 6%;
For example, coal containing about 10 g of 1% by weight of ash can be deashed by a method known per se, such as a heavy liquid coal washing method, and the coal has an ash content of about 6% by weight or less. Also,
Petroleum coke is generally a by-product of petroleum refining processes, and usually contains 0.1 to 1% by weight of ash.
本発明の固体燃料・水スラリー中の固体燃料の含有量は
、５０〜８０重量％、好ましくは、６５〜７５重量％で
ある。固体燃料粒子の幾何平均径は、７４ｇ、ｍ以下、
好ましくは２０〜５３ｕＬｍである。幾何平均径が７４
μｍよりも大きいと粗大粒子が増加して、使用時におけ
る種々の障害の原因となり、余り小さすぎると微細粒子
が多くなるため、その製造効率が低下し、かつ数子分散
のために分散剤を多量添加することが必要になる。The content of solid fuel in the solid fuel/water slurry of the present invention is 50 to 80% by weight, preferably 65 to 75% by weight. The geometric mean diameter of solid fuel particles is 74 g, m or less,
Preferably it is 20-53 uLm. Geometric mean diameter is 74
If the size is larger than μm, the number of coarse particles will increase, causing various problems during use. If the size is too small, the number of fine particles will increase, reducing the manufacturing efficiency, and requiring a large amount of dispersant for particle dispersion. It will be necessary to add it.
固体燃料粒子の粘度分布が、対数正規分布における上側
幾何標準偏差（σｇりと下側幾何標準偏差（σｇ−）と
の算術平均が６〜１２の範囲の値であり、上側幾何標準
偏差と下側幾何標準偏差との比（σｇ＋／σｇ−）が０
．６以下、好ましくは、０．４以下の範囲の値になるよ
うに調整することが必要である。それにより固体燃料・
木スラリー中の固体燃料粒子の粗粒分含量が低減し、高
濃度化と低粘度化が回部となる。The viscosity distribution of solid fuel particles is such that the arithmetic mean of the upper geometric standard deviation (σg-) and the lower geometric standard deviation (σg-) in the lognormal distribution is in the range of 6 to 12, and the upper geometric standard deviation and the lower The ratio (σg+/σg−) to the side geometric standard deviation is 0
．． It is necessary to adjust the value to a value of 6 or less, preferably 0.4 or less. As a result, solid fuel
The coarse content of solid fuel particles in the wood slurry is reduced, resulting in higher concentration and lower viscosity.
上記標準偏差の比が、０．６よりも大きくなると、粗粒
分を低減させるためには、幾何平均径（ＤＰ５０）を著
しく小さくさせなくてはならず、固体燃料・水スラリー
の高濃度化と低粘度化が困難になり、また工業的製造プ
ロセスにおいても不利となる。When the ratio of the above standard deviations becomes larger than 0.6, the geometric mean diameter (DP50) must be significantly reduced in order to reduce the coarse particle content, resulting in a high concentration of solid fuel/water slurry. This makes it difficult to reduce the viscosity and is also disadvantageous in industrial manufacturing processes.
本発明の固体燃料・水スラリーを製造する方法としては
１例えば、固体燃料を通常使用される乾式または湿式の
粉砕機を使用して、幾何平均径（ＤＰ５０）が７４μｍ
以下である種々の幾何平均径（ＤＰ５０）を有する固体
燃料粒子を製造し、これらを用いて、混合物の固体燃料
粒子の粘度分布が上記規定した範囲内にはいるように調
製混合した後所定量の水と混合する方法がある。また、
各種の粒径を有する固体燃料粒子の調製に際しては公知
の分級操作を利用することもできる。As a method for producing the solid fuel/water slurry of the present invention, 1, for example, a solid fuel with a geometric mean diameter (DP50) of 74 μm is used, using a dry or wet pulverizer that is usually used.
Solid fuel particles having various geometric mean diameters (DP50) as follows are produced, and these are mixed in a predetermined amount so that the viscosity distribution of the solid fuel particles in the mixture falls within the range specified above. There is a way to mix it with water. Also,
Known classification operations can also be used to prepare solid fuel particles having various particle sizes.
本発明の固体燃料・水スラリー中には、高濃度化に伴な
う粘度上昇を抑制するために、適当な分散剤などのごと
き添加物を含有させることができる０分散剤としては、
それ自体公知の物質を使用することができ、例えば、ナ
フタレンスルホン酸塩、石油スルホン酸塩、リグニンス
ルホン酸塩、及びこれらのホルマリン縮合物；ポリオキ
シエチレンアルキルエーテル硫酸エステル塩、ポリオキ
シエチレンアルキルアリールエーテル硫酸エステル塩；
ポリグリセリンの硫酸化物；メラミン樹脂のスルホン酸
塩：石炭抽出物のスルホン酸塩等を挙げることが出来る
。In the solid fuel/water slurry of the present invention, in order to suppress the increase in viscosity due to high concentration, additives such as suitable dispersants can be included as zero dispersants.
Substances known per se can be used, for example naphthalene sulfonates, petroleum sulfonates, lignin sulfonates, and formalin condensates thereof; polyoxyethylene alkyl ether sulfate salts, polyoxyethylene alkylaryls. Ether sulfate ester salt;
Examples include sulfates of polyglycerin; sulfonates of melamine resins; sulfonates of coal extracts.
分散剤の使用量は、固体燃料・水スラリー１００重量部
に対して、０．０１〜３重量部が適当である。また、分
散剤は固体燃料・水スラリーの製造工程の任意の時点、
固体燃料・水スラリーの製造後に添加することができる
。The appropriate amount of the dispersant used is 0.01 to 3 parts by weight based on 100 parts by weight of the solid fuel/water slurry. In addition, the dispersant can be used at any point in the manufacturing process of solid fuel/water slurry.
It can be added after the solid fuel/water slurry is produced.
本発明の固体燃料・水スラリーは、７０重量％以上の固
体燃料を含有する高濃度固体燃料・水スラリーでありな
がら、後述する方法で測定した粘度が約８００ｍＰａ＊
ｓ以下程度の低粘度であるため、そのまま工業的に有利
に使用することができる。Although the solid fuel/water slurry of the present invention is a highly concentrated solid fuel/water slurry containing 70% by weight or more of solid fuel, it has a viscosity of approximately 800 mPa* as measured by the method described below.
Since it has a low viscosity of about s or less, it can be advantageously used industrially as it is.
［発明の効果］
本発明の固体燃料・水スラリーは、固体燃料粒子を高濃
度で含有しながら、しかも低粘度であるので、石油など
の液体燃料と同様に工業的に有利に使用することができ
、固体燃料粒子の表面積が低減され、かつ粗粒分の含有
量が著しく少ないため、分散剤などの添加剤の必要量が
軽減され、更に、燃焼時における未燃焼分の発生が極め
て抑制されるなどの特徴を有する。従って、本発明の固
体燃料粒子スラリーは、ボイラー、加熱炉等における燃
料として、また、水素、−酸化炭素などの製造における
ガス化用原料として好適に利用することが出来るもので
ある。[Effects of the Invention] The solid fuel/water slurry of the present invention contains solid fuel particles at a high concentration and has a low viscosity, so it can be used industrially to advantage in the same way as liquid fuels such as petroleum. Since the surface area of solid fuel particles is reduced and the content of coarse particles is significantly lower, the amount of additives such as dispersants required is reduced, and the generation of unburned particles during combustion is extremely suppressed. It has the following characteristics. Therefore, the solid fuel particle slurry of the present invention can be suitably used as a fuel in boilers, heating furnaces, etc., and as a raw material for gasification in the production of hydrogen, carbon oxide, etc.
次に実施例及び比較例を示す、実施例及び比較例に於け
る。固体燃料の性状、固体燃料粒子の粒度分布の測定方
法、固体燃料・水スラリーの粘度測定方法を、次に示す
。Next, Examples and Comparative Examples will be described. The properties of solid fuel, the method for measuring the particle size distribution of solid fuel particles, and the method for measuring the viscosity of solid fuel/water slurry are shown below.
（１）固体燃料の性状 下記性状の脱灰処理した石炭を使用した。(1) Properties of solid fuel Deashed coal with the following properties was used.
工業分析（重量％）二 水分 ５．１（恒湿基
準） 灰分 ２．３［ＪＩＳ Ｍ８８
１２］ 揮発分 ４０．８固定炭素 ５１．８
発Ｍｆｆｌ（ｋｃａｌ／ｋｇ）： ７４１０（
恒湿基準）［ＪＩＳ Ｍ８８１４］元素分析（重量％
）：ｒＲ素 ７９．６［ＪＩＳ Ｍ８８１３］
水素 ５．２窒素 １．７
硫黄 ０．５
酸素 １０．６
灰分 ２．４
（２）固体燃料粒子の粒度分布の測定方法島津製作所製
遠心沈降式粒度分布測定装置ＣＰ−５０型と、通常の篩
とを併用して測定した。Industrial analysis (wt%) 2 Moisture 5.1 (humidity standard) Ash 2.3 [JIS M88
12] Volatile matter 40.8 Fixed carbon 51.8 Emitted Mffl (kcal/kg): 7410 (
Humidity standard) [JIS M8814] Elemental analysis (weight%
): rR element 79.6 [JIS M8813]
Hydrogen 5.2 Nitrogen 1.7 Sulfur 0.5 Oxygen 10.6 Ash 2.4 (2) Method for measuring particle size distribution of solid fuel particles Measurement was performed using a sieve.
（３）固体燃料・水スラリーの粘度測定方法固体燃料・
水スラリーを製造後直ちに、東京計器■製Ｂ型回転粘度
計（動３０−ター使用）を用いて測定した。ｌ１１１１
定は、温度２７℃、回転数１２ｒｐｍで行い、測定開始
１分後の値を読み取って行なった。(3) Method for measuring viscosity of solid fuel/water slurry Solid fuel/water slurry
Immediately after producing the water slurry, it was measured using a B-type rotational viscometer (using a dynamic 30-tar) manufactured by Tokyo Keiki ■. l1111
The measurement was carried out at a temperature of 27° C. and a rotation speed of 12 rpm, and the value was read 1 minute after the start of the measurement.
［実施例１］
固体燃料を、ボールミルを用いて湿式粉砕した後、■開
き２９７μｍの篩で分級して、粉砕の程度が異なる種々
の固体燃料粉砕試料を調製した。[Example 1] Solid fuel was wet-pulverized using a ball mill and then classified using a sieve with an opening of 297 μm to prepare various solid fuel pulverized samples having different degrees of pulverization.
各試料の幾何平均径（ＤＰ５０）、上側幾何様偏差（Ｄ
Ｐ◆σ）および下側幾何標準偏差（ＤＰ−σ）を第１表
に示す。Geometric mean diameter (DP50) and upper geometric deviation (D
P◆σ) and lower geometric standard deviation (DP-σ) are shown in Table 1.
第 １ 表
試料 Ｄｐ５０ Ｄｐ◆σ ｏｐ−σＡ
４０４ｍ ９０μｍ ７ 、９ＪＬｍＢ ５７
１２０ １７
Ｇ ２６ ７９ ２．９
Ｄ ２．８ ９．７ −
試料Ａを６４重量部、試料Ｃを２８重量部および試料り
を８重量部均一に混合して、第２表に示すような幾何平
均径および粒度分布を有する固体燃料粒子を調製した。Table 1 Sample Dp50 Dp◆σ op-σA
404m 90μm 7, 9JLmB 57
120 17 G 26 79 2.9 D 2.8 9.7 - 64 parts by weight of sample A, 28 parts by weight of sample C and 8 parts by weight of sample were uniformly mixed and prepared in the geometry shown in Table 2. Solid fuel particles with average diameter and particle size distribution were prepared.
固体燃料粒子７０重量部、水３０重量部および分散剤と
してのβ−ナフタレンスルホン酸ナトリウムのホルマリ
ン縮合物０．５重量部を室温で混合容器に入れ、手攪拌
で予備混合した後、特殊機化工業■製のラボディスパー
を使用して、回転数３００ Ｏｒ、ｐ−鳳、で３分間攪
拌して、固体燃料濃度７０４３％の固体燃料・水スラリ
ーを製造した。70 parts by weight of solid fuel particles, 30 parts by weight of water, and 0.5 parts by weight of a formalin condensate of sodium β-naphthalene sulfonate as a dispersant were placed in a mixing container at room temperature, premixed by hand stirring, and then mixed with special equipment. A solid fuel/water slurry having a solid fuel concentration of 7043% was produced by stirring for 3 minutes at a rotation speed of 300 Orr using a laboratory spar manufactured by Kogyo 1.
その粘度を第２表に示す。Its viscosity is shown in Table 2.
［実施例２］
実施例１に記載した試料Ｂを７２重量部１．試料Ｃを２
１重量部および試料りを７重量部を均一に混合して、第
２表に示すような幾何平均径および粒度分布を有する固
体燃料粒子を調製した他は、実施例１におけると同様に
して固体燃料・水スラリーを製造した。その粘度を第２
表に示す。[Example 2] Sample B described in Example 1 was added in an amount of 72 parts by weight1. Sample C 2
Solid fuel particles were prepared in the same manner as in Example 1, except that 1 part by weight and 7 parts by weight of the sample were uniformly mixed to prepare solid fuel particles having the geometric mean diameter and particle size distribution as shown in Table 2. A fuel/water slurry was produced. The viscosity is the second
Shown in the table.
［比較例１〜２］
実施例１におけると同様の方法により、本発明の範囲外
の粒度分布を有する固体燃料を調製し、実施例１におけ
ると同様にして固体燃料濃度スラリーを製造した。固体
燃料の幾何平均径および粒度分布、そして固体燃料・水
スラリーの粘度を第２表に示す。[Comparative Examples 1 and 2] A solid fuel having a particle size distribution outside the range of the present invention was prepared in the same manner as in Example 1, and a solid fuel concentration slurry was produced in the same manner as in Example 1. Table 2 shows the geometric mean diameter and particle size distribution of the solid fuel, and the viscosity of the solid fuel/water slurry.
以下余白Margin below
Claims (1)
スラリーにおいて、該固体燃料を５０〜８０重量％含有
し、該固体燃料は、その粒子の幾何平均径（Ｄ＿Ｐ５０
）が、７４μｍ以下であり、粒度分布が、対数正規分布
における上側幾何標準偏差（σｇ＋）と下側幾何標準偏
差（σｇ−）との算術平均が６〜１２の範囲内の値であ
り、それらの比（σｇ＋／σｇ−）が０．６以下の値で
あるように調整されていることを特徴とする固体燃料・
水スラリー。 ２、該固体燃料の含有量が、６５〜７５重量％の範囲に
あることを特徴とする特許請求の範囲第１項記載の固体
燃料・水スラリー。 ３、固体燃料の粒子の幾何平均径（Ｄ＿Ｐ５０）が２０
〜５３μｍの範囲にあることを特徴とする特許請求の範
囲第１項記載の固体燃料・水スラリー。 ４、上側幾何標準偏差と下側幾何標準偏差との比（σｇ
＋／σｇ−）が０．４以下であることを特徴とする特許
請求の範囲第１項記載の固体燃料・水スラリー。 ５、分散剤が含有されていることを特徴とする特許請求
の範囲第１項記載の固体燃料・水スラリー。 ６、ナフタレンスルホン酸塩、石油スルホン酸塩、リグ
ニンスルホン酸塩、及びこれらのホルマリン縮合物、ポ
リオキシエチレンアルキルエーテル硫酸エステル塩、ポ
リオキシエチレンアルキルアリールエーテル硫酸エステ
ル塩、ポリグリセリンの硫酸化物、メラミン樹脂のスル
ホン酸塩、石炭抽出物のスルホン酸塩からなる群より選
ばれる分散剤が含有されていることを特徴とする特許請
求の範囲第１項記載の固体燃料・水スラリー。[Claims] 1. A solid fuel/water slurry consisting of coal and/or petroleum coke, which contains 50 to 80% by weight of the solid fuel, and the solid fuel has a geometric mean particle diameter (D_P50
) is 74 μm or less, and the particle size distribution is such that the arithmetic mean of the upper geometric standard deviation (σg+) and lower geometric standard deviation (σg−) in the lognormal distribution is a value within the range of 6 to 12, and those A solid fuel, characterized in that the ratio (σg+/σg−) is adjusted to a value of 0.6 or less.
water slurry. 2. The solid fuel/water slurry according to claim 1, wherein the content of the solid fuel is in the range of 65 to 75% by weight. 3. The geometric mean diameter (D_P50) of solid fuel particles is 20
The solid fuel/water slurry according to claim 1, characterized in that the solid fuel/water slurry has a particle size in the range of ~53 μm. 4. Ratio of upper geometric standard deviation to lower geometric standard deviation (σg
The solid fuel/water slurry according to claim 1, wherein the solid fuel/water slurry has a ratio of +/σg-) of 0.4 or less. 5. The solid fuel/water slurry according to claim 1, which contains a dispersant. 6. Naphthalene sulfonate, petroleum sulfonate, lignin sulfonate, and their formalin condensates, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkylaryl ether sulfate, polyglycerin sulfate, melamine The solid fuel/water slurry according to claim 1, further comprising a dispersant selected from the group consisting of sulfonates of resins and sulfonates of coal extracts.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62005841A JPH0710987B2 (en) | 1987-01-12 | 1987-01-12 | Solid fuel / water slurry |
| AU83052/87A AU612127B2 (en) | 1986-12-26 | 1987-12-24 | Solid fuel-water slurry composition and process for the preparation of the same |
| CN87108310A CN1021343C (en) | 1986-12-26 | 1987-12-24 | Solid fuel-water slurry composition and process for preparation of same |
| KR1019870015002A KR900005100B1 (en) | 1986-12-26 | 1987-12-26 | Solid fuel-water slurry confution and it's preparaing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62005841A JPH0710987B2 (en) | 1987-01-12 | 1987-01-12 | Solid fuel / water slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63172793A true JPS63172793A (en) | 1988-07-16 |
| JPH0710987B2 JPH0710987B2 (en) | 1995-02-08 |
Family
ID=11622243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62005841A Expired - Lifetime JPH0710987B2 (en) | 1986-12-26 | 1987-01-12 | Solid fuel / water slurry |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710987B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718273A (en) * | 1993-06-30 | 1995-01-20 | Kawasaki Heavy Ind Ltd | Method and apparatus for producing high-concentration coal-water paste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838791A (en) * | 1981-08-31 | 1983-03-07 | Ube Ind Ltd | Preparation of high concentration coal-water slurry |
| JPS58222191A (en) * | 1982-06-18 | 1983-12-23 | Ube Ind Ltd | Production of solid fuel/water slurry |
| JPS5915486A (en) * | 1982-07-16 | 1984-01-26 | Ube Ind Ltd | Preparation of solid fuel/water slurry |
-
1987
- 1987-01-12 JP JP62005841A patent/JPH0710987B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838791A (en) * | 1981-08-31 | 1983-03-07 | Ube Ind Ltd | Preparation of high concentration coal-water slurry |
| JPS58222191A (en) * | 1982-06-18 | 1983-12-23 | Ube Ind Ltd | Production of solid fuel/water slurry |
| JPS5915486A (en) * | 1982-07-16 | 1984-01-26 | Ube Ind Ltd | Preparation of solid fuel/water slurry |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718273A (en) * | 1993-06-30 | 1995-01-20 | Kawasaki Heavy Ind Ltd | Method and apparatus for producing high-concentration coal-water paste |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710987B2 (en) | 1995-02-08 |
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