JPS59174695A - Inhibitor against rise in content of coal in open-air storage - Google Patents
Inhibitor against rise in content of coal in open-air storageInfo
- Publication number
- JPS59174695A JPS59174695A JP4852583A JP4852583A JPS59174695A JP S59174695 A JPS59174695 A JP S59174695A JP 4852583 A JP4852583 A JP 4852583A JP 4852583 A JP4852583 A JP 4852583A JP S59174695 A JPS59174695 A JP S59174695A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- open
- content
- resin
- emulsifying agent
- 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.)
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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は野積み石炭の含水率上昇抑制剤に関するもの
でおる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an agent for suppressing an increase in moisture content of open piled coal.
近年、石油ショックを契機に省エネルギー、省資源が叫
ばれ、同時にエネルギー源としての石炭がその地位を回
復するに及んで、その使用量も漸次増大の傾向を辿って
いる。こ扛に件なって石炭貯蔵に関連する諸問題もクロ
ーズ・アップされてきた。例えば炭塵飛散、発熱防止、
劣化防止等がそれで、その対策も種々考えられている。In recent years, in the wake of the oil shock, there has been a call for energy conservation and resource conservation, and at the same time, as coal has regained its position as an energy source, its usage has also been gradually increasing. In connection with this incident, various issues related to coal storage have also been brought into focus. For example, prevention of coal dust scattering, heat generation,
Various measures have been considered to prevent deterioration, etc.
しかし野積み石炭の雨水浸透防止については未だ本格的
な対策が講じられていない。However, no serious measures have yet been taken to prevent rainwater from seeping into open coal piles.
野積み石炭の雨水浸透による水分の上昇は、水分蒸発の
ために余分のエネルギーを消費させ、経済的に大きな損
失を招くばかりでなく、原料炭の場合はコークス製造工
程において種々の悪影響を及ばず。従って雨水による石
炭の含水率の上昇を１％抑制するだけでも大きなメリッ
トを生むことになる。The increase in water content due to rainwater infiltration in open piled coal not only consumes extra energy for water evaporation and causes large economic losses, but also causes various negative effects in the coke manufacturing process in the case of coking coal. . Therefore, even suppressing the increase in moisture content of coal by 1% due to rainwater will bring great benefits.
本発明は、このような状況下に、安価で優れた野積み石
炭の含水率上昇抑制剤を提供することを目的とするもの
である。すなわち、本発明は、乳化剤を含まないか、ま
たは樹脂エマルション中の樹脂１００重量部に対して乳
化剤を１重量部以下含有する水中油型樹脂エマルション
を有効成分とする野積み石炭の含水率上昇抑制剤である
。Under such circumstances, it is an object of the present invention to provide an inexpensive and excellent inhibitor of increase in moisture content of open coal. That is, the present invention is directed to suppressing an increase in the moisture content of piled coal using an oil-in-water resin emulsion as an active ingredient that does not contain an emulsifier or contains 1 part by weight or less of an emulsifier per 100 parts by weight of resin in the resin emulsion. It is a drug.
本発明の有効成分である水中油型樹脂エマルションは、
疎水性単量体を乳化剤を用いずに、または用いる場合で
も疎水性単量体重量のｌチ以下で乳化重合して得ること
ができる。The oil-in-water resin emulsion that is the active ingredient of the present invention is
It can be obtained by emulsion polymerization of hydrophobic monomers without using an emulsifier, or even when using an emulsifier, the weight is less than 1 inch of the weight of the hydrophobic monomer.
本発明に用いられる疎水性単量体としては、酢酸ビニル
、アクリル酸エステル、メタクリル酸エステル、スチレ
ン、エチレン、フタジエン、塩化ヒニル、塩化ビニリデ
ンなどが挙げられ、これらの１種または２種以上の混合
物が乳化重合に供される。また、これらの疎水性単量体
はカチオン性単量体と共重合してもよく、その場合カチ
オン性単量体は、全単量体のｉｏｗｔ％以下程度とする
とよい。カチオン性単量体としては、メタクリロイルオ
キシエチルトリメチルアンモニウムクロライド、メタク
リル゛ｒミドプロピルトリメチルアンモニウムクロライ
ド、ビニルピリジン等を用いることができる。Examples of the hydrophobic monomer used in the present invention include vinyl acetate, acrylic ester, methacrylic ester, styrene, ethylene, phtadiene, vinyl chloride, vinylidene chloride, etc. One type or a mixture of two or more of these monomers can be used. is subjected to emulsion polymerization. Further, these hydrophobic monomers may be copolymerized with a cationic monomer, and in this case, the amount of the cationic monomer is preferably about iowt% or less of the total monomers. As the cationic monomer, methacryloyloxyethyltrimethylammonium chloride, methacrylamidopropyltrimethylammonium chloride, vinylpyridine, etc. can be used.
乳化剤としては、カチオン性、アニオン性またはノニオ
ン性のいずれの界面活性剤を用いてもよい。As the emulsifier, any cationic, anionic or nonionic surfactant may be used.
カチオン性界面活性剤としては、炭素数１２以上の脂肪
族炭化水素基を有する第１級アミン塩、第２級アミン塩
、第３級アミン塩、および第４級アンモニウム塩が用い
られ、この中でも、第４級アンモニウム塩型が好ましい
。この第４級アンモニウム塩型のカチオン性界面活性剤
としては、例えば、ラウリルトリメチルアンモニウムク
ロライド、セチルトリメチルアンモニウムクロライド、
ステアリルトリメチルアンモニウムクロライドなどが挙
げられる。As the cationic surfactant, primary amine salts, secondary amine salts, tertiary amine salts, and quaternary ammonium salts having an aliphatic hydrocarbon group having 12 or more carbon atoms are used, and among these, , quaternary ammonium salt type is preferred. Examples of the quaternary ammonium salt type cationic surfactant include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride,
Examples include stearyltrimethylammonium chloride.
アニオン性界面活性剤としては、アルキルスルホン酸ナ
トリウム、アルキルベンゼンスルホン酸ナトリウム、ポ
リオキシエチレンアルキルエーテル硫酸エステルのナト
リウム塩、ポリオキシエチレンフェニルエーテル硫酸エ
ステルのナトリウム塩、高級アルコール硫酸エステルの
ナトリウム塩、ロート油等が挙げられる。Examples of anionic surfactants include sodium alkyl sulfonate, sodium alkylbenzene sulfonate, sodium salt of polyoxyethylene alkyl ether sulfate, sodium salt of polyoxyethylene phenyl ether sulfate, sodium salt of higher alcohol sulfate, and funnel oil. etc.
ノニオン性界面活性剤としては、ポリオキンエチレンア
ルキルフェニルエーテル、ポリオキシエチレンアルキル
エーテル、ポリオキシエチレンポリオキシプロピレンエ
ーテルなどが、用いられるが、ＨＬＢが１６以上のもの
が好ましい。As the nonionic surfactant, polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene ether, etc. are used, but those having an HLB of 16 or more are preferred.
乳化重合は、疎水性単量体を必要に応じ乳化剤と共に水
中で攪拌分散し、窒素ガスを吹込みながら加温し、過酸
化ベンゾイル、過硫酸塩。In emulsion polymerization, hydrophobic monomers are stirred and dispersed in water together with an emulsifier if necessary, heated while blowing nitrogen gas, and benzoyl peroxide and persulfate are added.
過酸化水素などの触媒や、これらの酸化剤とチオ硫酸ナ
トリウム、亜硫酸水素ナトリウムなどの還元剤とを組み
合せたレドックス触媒を用いて行う。まだ、触媒のほか
に硫酸銅のような重合促進剤を用いると、生成するエマ
ルションの樹脂粒子が小さくなシ乳化安定性がよくなる
ので好ましい。This is carried out using a catalyst such as hydrogen peroxide or a redox catalyst that combines these oxidizing agents with a reducing agent such as sodium thiosulfate or sodium bisulfite. However, it is preferable to use a polymerization accelerator such as copper sulfate in addition to the catalyst because the resin particles of the resulting emulsion are small and the emulsion stability is improved.
乳化剤は用いないのが好ましいが、用いるときは、疎水
性単量体重量のｌ−以下としなければならない。また、
一般に乳化重合時または重合後の乳化安定性を高めるた
めに、ポリビニルアルコールやカルホキツメチルセルロ
ースなどの保護コロイドを用いることがあるが、本発明
においては乳化剤や保穫コロイドを用いない方が好まし
い。なぜならば、乳化剤や保護コロイドを多量に含む水
中油型エマルションを石炭に散布すると、これらの物質
がエマル７ョン粒子間に介在することＫよシ、粒子の合
一が妨げられ、樹脂皮膜の生成に長時間を要し、また生
成した皮膜の透水性を増大させる原因となるからである
。It is preferable not to use an emulsifier, but when it is used, it must be less than 1- of the weight of the hydrophobic monomer. Also,
Generally, a protective colloid such as polyvinyl alcohol or calhomethylcellulose is sometimes used to improve emulsion stability during or after emulsion polymerization, but in the present invention it is preferable not to use an emulsifier or a protective colloid. This is because when an oil-in-water emulsion containing a large amount of emulsifiers and protective colloids is sprayed on coal, these substances interpose between the emulsion particles, preventing the particles from coalescing and causing the resin film to form. This is because it takes a long time to form and causes an increase in the water permeability of the formed film.
本発明の野積み石炭の含水率上昇抑制剤は、通常、樹脂
分５〜１０％の濃度で用い、野積み石炭に対しては、石
炭山表面１ｍ’描り樹脂分として２５〜２０ｏｔ、好ま
しくは５０−１００ ｆ散布する。その際、散布機を用
いて、石炭山の全表面に対して均一に散布するとよい。The moisture content increase inhibitor for open pile coal of the present invention is usually used at a concentration of 5 to 10% resin content, and for open pile coal, the resin content is preferably 25 to 20 ot, preferably Spray at 50-100 f. At that time, it is recommended to use a spreader to uniformly spread the coal over the entire surface of the coal pile.
なお、薬剤の散布は一回だけでもよいが、複数回行って
もよい。また次のように用いテモよい。Note that the chemical may be sprayed only once, or may be sprayed multiple times. It is also good to use it as follows.
■ 石炭山の形成時に、その表層部と欧る移送中の石炭
にベルトコンベア上で散布する。■ When a coal pile is formed, it is spread on the surface layer and the coal being transported to Europe on a conveyor belt.
■ 石炭山の形成時に、移送中の石炭のす、べてにベル
トコンベア上で散布する。■ When a coal pile is formed, all the coal being transported is spread on a conveyor belt.
■ ■または■に記載の散布を行い石炭山を形成したの
ち、さらにその表層部に散布する。■ After forming a coal pile by performing the spraying described in ■ or ■, the coal pile is further sprayed on the surface layer.
本発明の野積み石炭の含水率上昇抑制剤を野積み石炭に
散布すると、樹脂皮膜の形成が促進され、樹脂皮膜と石
炭とが強く結合して石炭山の表面を強固にし、また、石
炭山表面の石炭を疎水化する。したがって、雨水の内部
浸透を防止することができ、石炭の含水率上昇を抑制す
ることができる。なお、皮膜が強固なため、激しい降雨
によって石炭山が崩壊することの防止効果も期待できる
。When the moisture content increase inhibitor for open piled coal of the present invention is sprayed on open piled coal, the formation of a resin film is promoted, and the resin film and coal are strongly bonded to strengthen the surface of the coal pile. Hydrophobizes the coal on the surface. Therefore, internal infiltration of rainwater can be prevented, and an increase in the moisture content of coal can be suppressed. Furthermore, since the film is strong, it can also be expected to prevent coal piles from collapsing due to heavy rainfall.
次に実施例を挙げて、本発明の詳細な説明する。Next, the present invention will be explained in detail with reference to Examples.
実施例
４メツシーのふるいを通過したグーニエラ炭３〜を表層
水と透過水とを分取できる円形容器（直径３０硼）上に
円錐状に山積みし、これに第１表に示す各種樹脂エマル
ションを、樹脂分濃度を５％に調整したのち均一に散布
し、３日間室内で風乾した。次にこれを降雨強度１０園
／ｈｒの人工降雨下に２０時間曝した後、表層水量、透
過水量及び山積み石炭の重量変化（降雨前後の重量差）
を測定し、全水分お・よび浸透率を求めた。結果を第２
表に示す。降雨後の全水分は、降雨前の全水分と重量変
化から次式にょシ算出した。Example 4 Three pieces of Goonyella charcoal that had passed through the Metsushi sieve were piled up in a conical shape on a circular container (30 meters in diameter) that could separate surface water and permeated water, and various resin emulsions shown in Table 1 were added to this. After adjusting the resin concentration to 5%, it was evenly spread and air-dried indoors for 3 days. Next, after exposing this to artificial rain with a rainfall intensity of 10 gardens/hr for 20 hours, changes in surface water volume, permeation water volume, and weight of piled coal (weight difference before and after rain)
The total water content and permeability were determined. Second result
Shown in the table. The total moisture after rain was calculated using the following formula from the total moisture before rain and weight change.
また、浸透率は次式により算出した。In addition, the penetration rate was calculated using the following formula.
第１表 注） ＰＯＥはポリオキシエチレンを表わす。Table 1 Note) POE stands for polyoxyethylene.
第２表
第２表から、乳化剤を含まないか、樹脂外に対して１％
以下の乳化剤を含む樹脂エマルションは、乳化剤を多く
含むものに比べ石炭の含水率上昇抑制効果が優れている
ことがわかる。Table 2 From Table 2, it does not contain emulsifier or is 1% based on the outside of the resin.
It can be seen that the resin emulsions containing the following emulsifiers are more effective in suppressing increases in the moisture content of coal than those containing a large amount of emulsifiers.
実施例２
第３表に示す樹脂エマルションを用いて、実施例１と同
様に試験を行い、全水分および浸透率を求めた。結果は
第４表に示す。Example 2 Using the resin emulsion shown in Table 3, a test was conducted in the same manner as in Example 1 to determine the total water content and permeability. The results are shown in Table 4.
第３表
第４表
第４表から、樹脂エマルションは保護コロイドを含まな
い方が効果がよいことがわかる。From Table 3 and Table 4, it can be seen that the resin emulsion is more effective when it does not contain a protective colloid.
出願人 栗田工業株式会社 ６４４Applicant Kurita Industries Co., Ltd. 644
Claims (1)
樹脂１００重量部に対して乳化剤を１重量部以下含有す
る水中油型樹脂エマルションを有効級分とする野積み石
炭の含水率上昇抑制剤。 ２）樹脂エマルションは、保護コロイドを含有しないも
のである特許請求の範囲第１項記載の野積み石炭の含水
率上昇抑制剤。[Scope of Claims] l) Water content of open piled coal whose effective grade is an oil-in-water resin emulsion that does not contain an emulsifier or contains 1 part by weight or less of an emulsifier per 100 parts by weight of resin in the resin emulsion. Rate increase inhibitor. 2) The resin emulsion does not contain a protective colloid, the inhibitor for increasing the moisture content of open coal as set forth in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4852583A JPS59174695A (en) | 1983-03-23 | 1983-03-23 | Inhibitor against rise in content of coal in open-air storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4852583A JPS59174695A (en) | 1983-03-23 | 1983-03-23 | Inhibitor against rise in content of coal in open-air storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59174695A true JPS59174695A (en) | 1984-10-03 |
| JPH0353356B2 JPH0353356B2 (en) | 1991-08-14 |
Family
ID=12805775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4852583A Granted JPS59174695A (en) | 1983-03-23 | 1983-03-23 | Inhibitor against rise in content of coal in open-air storage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59174695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5310494A (en) * | 1992-04-29 | 1994-05-10 | Natec Resources, Inc. | Method for controlling dusting of coke and coal |
| US5536429A (en) * | 1992-04-29 | 1996-07-16 | Benetech, Inc. | Method for treating coke and coal and products produced thereby |
| US9017767B2 (en) | 2012-06-13 | 2015-04-28 | Benetech, Inc. | Method of suppressing dust in piles and railcars using plasticized cellulose ethers |
| US9937523B2 (en) | 2012-11-19 | 2018-04-10 | Benetech, Inc. | Dust suppression formulas using plasticized cellulose ethers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931589A (en) * | 1972-07-21 | 1974-03-22 | ||
| JPS536638A (en) * | 1976-07-06 | 1978-01-21 | Vyzk Ustav Bavlnarsky | Method of and apparatus for cooling spinning unit of opennend spinning frames |
| JPS5674191A (en) * | 1979-11-22 | 1981-06-19 | Mitsui Eng & Shipbuild Co Ltd | Granulation of coal for coal slurry transportation |
-
1983
- 1983-03-23 JP JP4852583A patent/JPS59174695A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931589A (en) * | 1972-07-21 | 1974-03-22 | ||
| JPS536638A (en) * | 1976-07-06 | 1978-01-21 | Vyzk Ustav Bavlnarsky | Method of and apparatus for cooling spinning unit of opennend spinning frames |
| JPS5674191A (en) * | 1979-11-22 | 1981-06-19 | Mitsui Eng & Shipbuild Co Ltd | Granulation of coal for coal slurry transportation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5310494A (en) * | 1992-04-29 | 1994-05-10 | Natec Resources, Inc. | Method for controlling dusting of coke and coal |
| US5536429A (en) * | 1992-04-29 | 1996-07-16 | Benetech, Inc. | Method for treating coke and coal and products produced thereby |
| US9017767B2 (en) | 2012-06-13 | 2015-04-28 | Benetech, Inc. | Method of suppressing dust in piles and railcars using plasticized cellulose ethers |
| US9937523B2 (en) | 2012-11-19 | 2018-04-10 | Benetech, Inc. | Dust suppression formulas using plasticized cellulose ethers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0353356B2 (en) | 1991-08-14 |
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