JPS62171919A - Slaked lime composition - Google Patents
Slaked lime compositionInfo
- Publication number
- JPS62171919A JPS62171919A JP1265186A JP1265186A JPS62171919A JP S62171919 A JPS62171919 A JP S62171919A JP 1265186 A JP1265186 A JP 1265186A JP 1265186 A JP1265186 A JP 1265186A JP S62171919 A JPS62171919 A JP S62171919A
- Authority
- JP
- Japan
- Prior art keywords
- slaked lime
- water
- calcium chloride
- composition
- lime composition
- 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
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 77
- 239000000920 calcium hydroxide Substances 0.000 title claims abstract description 77
- 235000011116 calcium hydroxide Nutrition 0.000 title claims abstract description 77
- 229910001861 calcium hydroxide Inorganic materials 0.000 title claims abstract description 77
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910001868 water Inorganic materials 0.000 claims abstract description 32
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 29
- 239000001110 calcium chloride Substances 0.000 claims abstract description 29
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 235000011148 calcium chloride Nutrition 0.000 abstract description 25
- 239000000428 dust Substances 0.000 abstract description 21
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000292 calcium oxide Substances 0.000 abstract description 4
- 235000012255 calcium oxide Nutrition 0.000 abstract description 4
- VJHCJDRQFCCTHL-UHFFFAOYSA-N acetic acid 2,3,4,5,6-pentahydroxyhexanal Chemical compound CC(O)=O.OCC(O)C(O)C(O)C(O)C=O VJHCJDRQFCCTHL-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000005507 spraying Methods 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 7
- 229920000578 graft copolymer Polymers 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 229920002125 Sokalan® Polymers 0.000 description 5
- 239000004584 polyacrylic acid Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 229910000514 dolomite Inorganic materials 0.000 description 4
- 239000010459 dolomite Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000003516 soil conditioner Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 240000008866 Ziziphus nummularia Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000002364 soil amendment Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は消石灰組成物に係り、特に散布使用時の粉塵飛
散率が低く、自沈性に優れた消石灰組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a slaked lime composition, and particularly to a slaked lime composition that has a low dust scattering rate during spraying use and has excellent self-settling properties.
［従来の技術］
消石灰は水酸化カルシウムを主体とするものであって、
廉価なアルカリ剤であることから、農業用土質改良剤、
土木建設用土質改良剤又は中和剤、その他、工業廃水中
和剤、酸性廃ガス捕集剤等として、建築業、製造業、農
業等の幅広い分野で使用さ、れている。[Prior art] Slaked lime is mainly composed of calcium hydroxide,
Since it is an inexpensive alkaline agent, it is used as an agricultural soil conditioner.
It is used in a wide range of fields such as the construction industry, manufacturing industry, and agriculture, as a soil improver or neutralizer for civil engineering construction, a dispersing agent for industrial wastewater, and an acidic waste gas collector.
［発明が解決しようとする問題点１
このように消石灰は産業上極めて有用であるが、その製
品自体が微粉末であるため、粉塵の発生が非常に多く、
作業性を害するとともに作業環境や周辺の大気を汚染す
るという欠点を有して１／）た、特に、農業用土質改良
剤として用いる場合、機械散布方式の導入の増加につれ
、大気中への粉塵飛散は、消石灰の飛散損失や周囲の環
境公害という問題を引き起こすことがあり、その解決が
強く望まれている。[Problem to be solved by the invention 1 As described above, slaked lime is extremely useful industrially, but since the product itself is a fine powder, it generates a large amount of dust.
Particularly when used as an agricultural soil conditioner, as the introduction of mechanical spraying methods increases, dust particles enter the atmosphere. Scattering can cause problems such as scattering loss of slaked lime and pollution of the surrounding environment, and a solution to this problem is strongly desired.
また、通常の消石灰は自沈性が悪く、バルク状態である
ため、機械散布方式における散布貯槽用ホッパー内での
容積が大きくなる（ブリッジング）うえ、ホッパー内か
ら均一状態で取り出すことが困難である。In addition, since normal slaked lime has poor slushing properties and is in a bulk state, the volume in the hopper for the spray storage tank in the mechanical spraying method becomes large (bridging), and it is difficult to take it out from the hopper in a uniform state. .
また、消石灰は、一般に後述の第１図の如き工程により
製造される。そして、製造後、サイロに貯蔵された消石
灰は、通常、サイロ下部のハンドル（弁）（図示せず）
を開いて、ビニール袋に所定量計量採取され、袋の上部
をシール機にかけてシールされて製品として出荷される
。この場合、従来品では、袋詰後、袋の中で消石灰が沈
みにくいことから、そのままシール機にかけることがで
きず、時間をおいてからシール機にかけている。Moreover, slaked lime is generally manufactured by a process as shown in FIG. 1, which will be described later. After production, the slaked lime stored in the silo is usually stored in a handle (valve) at the bottom of the silo (not shown).
The sample is opened, a predetermined amount is taken into a plastic bag, the top of the bag is put through a sealing machine, and the product is sealed and shipped. In this case, with the conventional product, the slaked lime does not easily sink in the bag after being packed into a bag, so it cannot be directly applied to a sealing machine, so the product is placed in a sealing machine after some time has passed.
そのため、袋詰の作業効率は著しく悪いという欠点があ
った。Therefore, there was a drawback that the efficiency of bagging work was extremely poor.
［問題点を解決するための手段］
本発明は、上記従来の問題点を解決し、散布使用時の粉
塵飛散率が低く自沈性に優れた消石灰組成物を提供する
ものであって。[Means for Solving the Problems] The present invention solves the above-mentioned conventional problems and provides a slaked lime composition that has a low dust scattering rate during spraying use and has excellent slushing properties.
消石灰と塩化カルシウムとを含むことを特徴とする消石
灰組成物、
及び
消石灰、塩化カルシウム、保水剤及び水を含むことを特
徴とする消石灰組成物、
を要旨とするものである。A slaked lime composition characterized by containing slaked lime and calcium chloride, and a slaked lime composition characterized by containing slaked lime, calcium chloride, a water retention agent, and water.
以下に本発明の詳細な説明する。The present invention will be explained in detail below.
本発明の消石灰組成物は、消石灰に防散剤として塩化カ
ルシウム、あるいは、塩化カルシウム、保水剤及び水を
添加してなるものである。The slaked lime composition of the present invention is made by adding calcium chloride or calcium chloride, a water retention agent, and water as a dispersion prevention agent to slaked lime.
本発明において消石灰としては、特に制限はなく、高純
度水酸化カルシウムの他、不純物としてＭ化マグネシウ
ム、酸化カルシウム等を含む様々な純度の消石灰を用い
ることができる。In the present invention, the slaked lime is not particularly limited, and in addition to high-purity calcium hydroxide, slaked lime of various purity containing impurities such as magnesium chloride, calcium oxide, etc. can be used.
消石灰に添加する塩化カルシウムは、粉末、顆粒等いず
れの形態でも良い、塩化カルシウムの添加量は、過少で
あると十分な防散効果が得られず、また多過ぎる場合に
は、経済性を損なう他、消石灰の化学的、物理的特性に
影響を及ぼすことがある。このため、一般に、本発明の
消石灰組成物中の塩化カルシウムの量は消石灰に対して
０．５〜１０重量％、好ましくは０．５〜５重量％とす
る。なお、防散剤として塩化カルシウムのみを添加する
場合には、水散布を行なう方が好ましい。Calcium chloride added to slaked lime may be in any form such as powder or granules. If the amount of calcium chloride added is too small, sufficient scattering prevention effect will not be obtained, and if it is too large, it will impair economic efficiency. Additionally, it may affect the chemical and physical properties of slaked lime. For this reason, the amount of calcium chloride in the slaked lime composition of the present invention is generally from 0.5 to 10% by weight, preferably from 0.5 to 5% by weight, based on the slaked lime. In addition, when adding only calcium chloride as a dispersion prevention agent, it is preferable to perform water spraying.
防散剤として、塩化カルシウムと供に保水剤を併用添加
する場合においては、水を添加することにより優れた防
散効果を得ることができる。この場合、保水剤としては
、カルボキシメチルセルロース、カルボキシメチルでん
ぷん、ポリエチレンオキサイド、ポリエチレングリコー
ル、ホリアクリルアミド、でんぷん−ポリアクリロニト
リルグラフト共重合体の加水分解物、でんぷん−ポリア
クリル酸グラフト共重合体、でんぷん−ポリアクリルア
ミドグラフト重合体、ポリビニルアルコール、ポリアク
リル酸ソーダ、アルギン酸ソーダ、ポリビニルピロリド
ン、酢酸ビニル系エマルション、ヒドロキシエチルセル
ロース、メチルセルロース等の各種の吸水性合成高分子
が用いられる。これらは一般に粉末として単独あるいは
２種以上を併用して用いることができる。塩化カルシウ
ムと共に保水剤及び水を添加する場合、保水剤及び水の
量は、消石灰組成物中の消石灰に対して、保水剤０．０
１〜１重量％、水０．０５〜０．４重量％とするのが好
ましい。When a water retention agent is added together with calcium chloride as a dispersion prevention agent, an excellent dispersion prevention effect can be obtained by adding water. In this case, water retention agents include carboxymethyl cellulose, carboxymethyl starch, polyethylene oxide, polyethylene glycol, polyacrylamide, starch-polyacrylonitrile graft copolymer hydrolyzate, starch-polyacrylic acid graft copolymer, starch-polyacrylic acid graft copolymer, and starch-polyacrylic acid graft copolymer. Various water-absorbing synthetic polymers such as acrylamide graft polymer, polyvinyl alcohol, sodium polyacrylate, sodium alginate, polyvinylpyrrolidone, vinyl acetate emulsion, hydroxyethylcellulose, and methylcellulose are used. Generally, these can be used alone or in combination of two or more in the form of powder. When a water retention agent and water are added together with calcium chloride, the amount of water retention agent and water is 0.0
Preferably, the content is 1 to 1% by weight, and the content of water is 0.05 to 0.4% by weight.
本発明の消石灰組成物は、通常の消石灰に、防散剤とし
て適量の塩化カルシウムあるいは更に保水剤及び水を添
加し、ミキサー等１攪拌し、必要に応じて更に粉砕して
均一に混合分散させることにより容易に調製することが
できる。この場合、水の添加は攪拌又は粉砕工程におい
てスプレーノズルなどを用いて散布することにより行な
うのが好ましい。The slaked lime composition of the present invention is prepared by adding an appropriate amount of calcium chloride as a scattering agent or a water retention agent and water to ordinary slaked lime, stirring with a mixer, and further pulverizing as necessary to uniformly mix and disperse. It can be easily prepared by In this case, the addition of water is preferably carried out by spraying using a spray nozzle or the like during the stirring or pulverizing process.
また、本発明の組成物は、生石灰を水又は水蒸気で消化
して、
Ｃａｏ＋Ｈ２Ｏ−＊Ｃａ （ＯＨ）２
なる反応で消石灰を連続的に製造する製造工程の任意の
箇所において、塩化カルシウム等を添加することにより
製造することができる。即ち、一般の実機製造工程にお
いては、消石灰は、第１図に示ス如く、トロンメル式、
アンカ一式、シュルテッス式、オートクレーブ式等の消
化機１に生石灰と理論量よりも大過剰の水を加えて熟成
して製造され、得られた消石灰は粉砕機（ミル）２で粉
砕し、更にスクリューコンベア３で振動ミル４に送給し
て更に粉砕し、移送ポンプ５、パケットコンベア６を経
てサイロ７に貯蔵される。、（なお、第１図において８
はミキサーである。）本発明の消石灰組成物は、このよ
うな消石灰製造工程において、消化機から振動ミルへ製
品を移送するスクリューコンベア３（通常、滞留時間約
５分）の部分に、水、粉末の塩化カルシウム、あるいは
保水剤の散布を行なうことにより容易に製造することが
できる。塩化カルシウムと共に保水剤を添加する場合、
これらは予め混合した後添加しても、また、各々、別個
に添加しても良い。なお、塩化カルシウム、保水剤、水
の添加箇所は、図示の如く、スクリューコンベア３の部
分とするのが望ましいが、これに限定されず、その他の
箇所、例えば消化機ｌから粉砕＠２へ到る部分としても
良い。In addition, the composition of the present invention can be prepared by adding calcium chloride or the like at any point in the manufacturing process in which quicklime is digested with water or steam to continuously produce slaked lime through the reaction Cao+H2O-*Ca(OH)2. It can be manufactured by That is, in the general actual manufacturing process, slaked lime is produced using the trommel method, as shown in Figure 1.
It is produced by adding quicklime and a large excess of water than the theoretical amount to a digester 1 such as an anchor set, Schultes type, or autoclave type, and aging it.The obtained slaked lime is crushed in a crusher (mill) 2, and then It is sent to a vibration mill 4 by a conveyor 3 for further pulverization, and then stored in a silo 7 via a transfer pump 5 and a packet conveyor 6. , (In addition, in Fig. 1, 8
is a mixer. ) In the slaked lime production process, the slaked lime composition of the present invention contains water, powdered calcium chloride, Alternatively, it can be easily produced by spraying a water retention agent. When adding a water retention agent along with calcium chloride,
These may be added after being mixed in advance, or may be added separately. It is preferable that the calcium chloride, water retention agent, and water be added to the screw conveyor 3 as shown in the figure, but it is not limited thereto, and may be added to other locations, for example, from the digester 1 to the pulverizer @2. It can also be used as a part.
［作用］
消石灰に塩化カルシウム、あるいは、塩化カルシウム及
び保水剤を混合して更に水を吸着させることにより、消
石灰粒子同志の架橋体が形成され、また、各粒子の表面
付着性も向上する。[Function] By mixing slaked lime with calcium chloride, or calcium chloride and a water retention agent to further adsorb water, a crosslinked body of slaked lime particles is formed, and the surface adhesion of each particle is also improved.
このため、得られる消石灰組成物は、自沈性が高く、極
めて低発塵性のものとなる。Therefore, the obtained slaked lime composition has high self-sinking properties and extremely low dust generation.
なお、消石灰に水を吸着させることにより、その防散性
をある程度改善することができるが、あまりに多量の水
を添加すると製品の消石灰が自硬し、使用不可能となる
。この自硬性の水分量の限界は、一般に１重量％とされ
ている。通常、製品消石灰中の在来水分が０．２〜０．
３重量％であることから、可能な最大添加水分は約０．
５重量％であり、この程度の水分添加では十分な防散効
果は得られない。Note that by adsorbing water to slaked lime, its dispersion resistance can be improved to some extent, but if too much water is added, the slaked lime in the product will self-harden and become unusable. The limit of the water content for self-hardening is generally 1% by weight. Normally, the native water content in the product slaked lime is 0.2 to 0.
3% by weight, the maximum possible added moisture is approximately 0.
The amount of water added is 5% by weight, and a sufficient scattering effect cannot be obtained with this level of water addition.
これに対し、本発明によれば、塩化カルシウム、保水剤
の優れた防散効果により、添加水分は製品消石灰当り、
約０．３重量％程度でも十分な防散性が得られ、製品を
自硬させることなく、低発塵性で、自沈性に優れた消石
灰組成物とすることができる。In contrast, according to the present invention, due to the excellent scattering effect of calcium chloride and water retention agent, the amount of added water is reduced per slaked lime product.
Even at about 0.3% by weight, sufficient dispersion resistance can be obtained, and a slaked lime composition with low dust generation and excellent self-sinking properties can be obtained without causing the product to self-harden.
［実施例］
以下に実施例及び比較例を挙げて本発明をより具体的に
説明するが、本発明はその要旨を超えない限り、以下の
実施例に限定されるものではない。[Examples] The present invention will be described in more detail with reference to Examples and Comparative Examples below, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.
実施例１、比較例１
微粉末のドロマイト消石灰５００ｇをモルタルミキサー
のポール内に採り、第１表に記載の薬剤を所定量加えた
後、低速で５分間攪拌した（本発明実施例はケース勤、
２〜５）。Example 1, Comparative Example 1 500 g of finely powdered dolomite slaked lime was placed in the pole of a mortar mixer, and after adding a prescribed amount of the chemicals listed in Table 1, the mixture was stirred at low speed for 5 minutes. ,
2-5).
得られた消石灰組成物について、発塵試験を行なった。A dust generation test was conducted on the obtained slaked lime composition.
発塵試験は、透明塩化ビニール管（Φ７ｃｍＸＨ１００
ｃｍ）の上部より、消石灰組成物５０ｇを一度に落下さ
せ、落下直後にデジタル粉塵計にセットした吸引用ビニ
ールパイプ（φ１２ｍｍ）を塩化ビニール管の内側底部
より３０ｃｍ上部にセットし、落下１分３０秒後から１
分間隔で５分間連続して粉塵量を測定した。粉塵量は、
デジタル粉塵計が示すカウント数（Ｃ，Ｐ、Ｍ）で調べ
た。The dust generation test was conducted using a transparent vinyl chloride pipe (Φ7cm x H100
50 g of slaked lime composition was dropped at once from the top of the slaked lime composition. Immediately after the drop, a vinyl suction pipe (φ12 mm) set in a digital dust meter was set 30 cm above the inner bottom of the vinyl chloride pipe, and the drop was 1 minute 30 minutes. 1 seconds later
The amount of dust was measured continuously for 5 minutes at minute intervals. The amount of dust is
It was investigated using the count numbers (C, P, M) indicated by a digital dust meter.
なお、比較のため、塩化カルシウムを添加していないド
ロマイト消石灰（比較例１．ケース間。For comparison, dolomite slaked lime without added calcium chloride (Comparative Example 1. between cases).
ｌ）についても同様に発塵試験を行なった。A dust generation test was similarly conducted for 1).
結果を第２図に示す。The results are shown in Figure 2.
第 １ 表
第２図より、本発明の消石灰組成物は極めて良好な防塵
性を示すことが明らかである。比較例においては、落下
後２．５分後からは殆ど発塵量が減少せず、微粒子が浮
遊する状態となっていたが１本発明のいずれの場合でも
、落下直後の発塵量が比較例の半分以下となっているだ
けでなく、発塵量はそれ以後も急速に低下していること
が認められる。特に、水を更に添加した場合（ケース勤
、５）は、極めて良好な防塵効果を発揮することがわか
る。From Table 1 and Figure 2, it is clear that the slaked lime composition of the present invention exhibits extremely good dustproof properties. In the comparative example, the amount of dust generated hardly decreased after 2.5 minutes after the fall, and fine particles were suspended; however, in both cases of the present invention, the amount of dust generated immediately after the fall was compared. Not only was it less than half of what it was in the previous example, but it was also observed that the amount of dust generated has been rapidly decreasing since then. In particular, it can be seen that when water is further added (case duty, 5), an extremely good dustproofing effect is exhibited.
実施例２、比較例２
実施例１で用いたものとグレードの異なるドロマイト消
石灰を試料とし、第２表に示す添加剤を所定量添加した
こと以外は実施例１と全く同じ方法で処理し、発塵試験
を行なった（本発明実施例はケース尚、 ７ 、９）
。Example 2, Comparative Example 2 A sample of dolomite slaked lime of a different grade from that used in Example 1 was treated in exactly the same manner as in Example 1, except that a predetermined amount of the additive shown in Table 2 was added. A dust generation test was conducted (the examples of the present invention are cases 7 and 9).
.
第 ２ 表
才１保水剤Ａ：でんぷん−ポリアクリル酸グラフト共重
合体
なお、比較のため、これらの添加剤を添加していないド
ロマイト消石灰（比較例２．ケース慟。No. 2 Expression 1 Water Retention Agent A: Starch-Polyacrylic Acid Graft Copolymer For comparison, dolomite slaked lime without these additives added (Comparative Example 2. Case lime).
６）及び水のみを添加したもの（ケース陥、８）につい
ても同様に発塵試験を行なった。6) and the one to which only water was added (case failure, 8) were similarly subjected to dust generation tests.
結果を第３図に示す。The results are shown in Figure 3.
第３図より、塩化カルシウム、保水剤及び水を併用添加
することにより、更に優れた防塵効果が得られることが
明らかである。From FIG. 3, it is clear that an even better dustproofing effect can be obtained by adding calcium chloride, a water retention agent, and water together.
実施例３、比較例３
第１図に示したフローの実機を用いて本発明方法を実施
した。薬剤として、塩化カルシウムを消石灰に対し２．
０重量％、でんぷん−ポリアクリル酸グラフト共重合体
を０．０３重量％、及び水を０．３重量％添加した。消
石灰と薬剤との混合時間は１０分間とし、その後サイロ
に搬送し、袋詰め（１袋２ｏｋｇ）を行なった。Example 3, Comparative Example 3 The method of the present invention was carried out using an actual machine with the flow shown in FIG. As a drug, calcium chloride is used for slaked lime.2.
0% by weight, 0.03% by weight of starch-polyacrylic acid graft copolymer, and 0.3% by weight of water. The slaked lime and the chemical were mixed for 10 minutes, and then transported to a silo and packed into bags (2 kg per bag).
袋詰開始直後、及び３７袋目の状況を見ると、いずれも
消石灰の沈みが速く、袋詰は良好に行なわれた。消石灰
を手で握ると、にぎり玉ができ、圧密性も良好であった
（但し、製品自体はサラサラした状態で取扱い易かった
）。５０袋目から、次第に袋詰めの際に製品の沈みが悪
化しはじめ、２〜３分間沈みを待ってからでないとシー
ル工程に移ることができなくなった。この部分はサイロ
からの取り出しの最後にあたったところから、取り出し
につれ軽い部分のみが残ったためと推定された。５４袋
の袋詰め所要時間は４０分であった。Looking at the situation immediately after the start of bagging and at the 37th bag, the slaked lime settled quickly in both cases, and bagging was carried out well. When slaked lime was squeezed by hand, a nigiri ball was formed and the compaction properties were good (however, the product itself was smooth and easy to handle). From the 50th bag, the product gradually began to sink during bagging, and it became impossible to proceed to the sealing process until after waiting for 2 to 3 minutes for the product to sink. Since this part was the last part to be removed from the silo, it was assumed that only the light part remained as it was removed. The time required to pack the 54 bags was 40 minutes.
一方、同じ実機を用いて薬剤を添加しないで実施した（
比較例３）、先ず、サイロ下部から袋に詰め、自沈する
のを待って、次のシール工程に移った（この場合、待機
時間をもたないとシール不可能であった）。On the other hand, it was carried out using the same actual machine without adding any drugs (
Comparative Example 3): First, the product was packed into bags from the bottom of the silo, waited for it to scuttle, and then moved on to the next sealing process (in this case, it was impossible to seal unless there was a waiting period).
その結果、５４袋の袋詰め所要時間は２時間を要した。As a result, it took two hours to pack the 54 bags.
実施例３及び比較例３の結果から、本発明によれば生産
効率を大幅に向上できることが明らかである。From the results of Example 3 and Comparative Example 3, it is clear that the present invention can significantly improve production efficiency.
［発明の効果］
以上詳述した通り、本発明の消石灰組成物は、消石灰と
塩化カルシウム、あるいは、塩化カルシウム、保水剤及
び水とを含むものであって、その優れた防散効果により
、次のような効果が奏される。[Effects of the Invention] As detailed above, the slaked lime composition of the present invention contains slaked lime and calcium chloride, or calcium chloride, a water retention agent, and water, and has the following effects due to its excellent scattering effect: An effect like this is produced.
■ 低発塵性であるため、散布使用時の飛散損失が極め
て少なく、大気汚染の問題を解決し作業環境を改善する
ことができる。■ Due to its low dust-emitting properties, there is extremely little scattering loss during spraying, which can solve the problem of air pollution and improve the work environment.
■ 自沈性に優れ、しかもサラサラとした状態となり得
るため、機械散布方式等を採用する場合、ホッパー内の
ブリッジングが防１トされ、均一・かつ安定な供給が可
能となる。■ It has excellent self-sinking properties and can be kept in a smooth state, so when mechanical dispersion methods are used, bridging inside the hopper is prevented and a uniform and stable supply is possible.
■ 消石灰の製造工程における袋詰作業においても、そ
の優れた自沈性により袋内へ投入した後直ちにシール機
にかけることができ、作業効率が向」−シ、単位時間当
りの生産量を向−卜させることができる。■ In the bagging process of the slaked lime manufacturing process, its excellent self-sinking properties allow it to be put into the bag and then immediately put through the sealing machine, improving work efficiency and increasing production volume per unit time. It can be made to read.
■ 保水剤を含む場合においては、これを農業用土壌改
質剤として散布使用した際、土壌の保水性を向−１−す
ることもでき、消石灰の中和作用の他に保水作用も奏さ
れ、作物の生育促進に大きく寄与することができる。■ If it contains a water retention agent, it can improve the water retention capacity of the soil when sprayed as an agricultural soil amendment, and in addition to the neutralizing effect of slaked lime, it also has a water retention effect. , can greatly contribute to the promotion of crop growth.
従って、本発明の消石灰組成物は、棗業用土質改良剤、
土木建設用土質改良剤又は中和剤、その他、工業廃水中
和剤、酸性廃ガス捕集剤等として、建築業、製造業、１
業等の幅広い分野において、極めて有用である。Therefore, the slaked lime composition of the present invention is a soil conditioner for the jujube industry,
For use in the construction industry, manufacturing industry, as a soil improver or neutralizing agent for civil engineering construction, as a dispersing agent for industrial wastewater, as an acidic waste gas collector, etc.
It is extremely useful in a wide range of fields such as industry.
第１図は消石灰の製造工程を示す系統図である。第２図
は実施例１及び比較例１の発塵試験の結果を示すグラフ
、第３図は実施例２及び比較例２の発塵試験の結果を示
すグラフである。
ｌ・・・消化機、 ２・・・粉砕機、３・・
・スクリューコンベア、
４・・・振動ミル、 ７・・・サイロ。FIG. 1 is a system diagram showing the manufacturing process of slaked lime. FIG. 2 is a graph showing the results of the dust generation test of Example 1 and Comparative Example 1, and FIG. 3 is a graph showing the results of the dust generation test of Example 2 and Comparative Example 2. l...Digester, 2...Crusher, 3...
・Screw conveyor, 4... Vibration mill, 7... Silo.
Claims (1)
る消石灰組成物。 （２）消石灰に対する塩化カルシウムの量が０．５〜１
０重量％であることを特徴とする特許請求の範囲第１項
に記載の消石灰組成物。 （３）消石灰、塩化カルシウム、保水剤及び水を含むこ
とを特徴とする消石灰組成物。 （４）消石灰に対する塩化カルシウムの量が０．５〜１
０重量％であることを特徴とする特許請求の範囲第３項
に記載の消石灰組成物。 （５）消石灰に対する保水剤の量が０．０１〜１重量％
であることを特徴とする特許請求の範囲第３項又は第４
項に記載の消石灰組成物。 （６）消石灰に対する水の量が０．０５〜 ０．４重量％であることを特徴とする特許請求の範囲第
３項ないし第５項のいずれか１項に記載の消石灰組成物
。[Scope of Claims] (1) A slaked lime composition characterized by containing slaked lime and calcium chloride. (2) The amount of calcium chloride relative to slaked lime is 0.5-1
The slaked lime composition according to claim 1, wherein the slaked lime composition is 0% by weight. (3) A slaked lime composition characterized by containing slaked lime, calcium chloride, a water retention agent, and water. (4) The amount of calcium chloride relative to slaked lime is 0.5-1
The slaked lime composition according to claim 3, wherein the slaked lime composition is 0% by weight. (5) The amount of water retention agent relative to slaked lime is 0.01 to 1% by weight
Claim 3 or 4 characterized in that
The slaked lime composition described in section. (6) The slaked lime composition according to any one of claims 3 to 5, wherein the amount of water relative to slaked lime is 0.05 to 0.4% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1265186A JPS62171919A (en) | 1986-01-23 | 1986-01-23 | Slaked lime composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1265186A JPS62171919A (en) | 1986-01-23 | 1986-01-23 | Slaked lime composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171919A true JPS62171919A (en) | 1987-07-28 |
Family
ID=11811269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1265186A Pending JPS62171919A (en) | 1986-01-23 | 1986-01-23 | Slaked lime composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171919A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01503232A (en) * | 1987-05-18 | 1989-11-02 | エフテーウー ゲーエムベーハー フォルシュング ウント テヒニッシェ エントヴィックルング イム ウムヴェルトシュッツ | Reactive calcium hydroxide-based purification agent for purifying gas and waste gas and method for purifying gas and waste gas |
| JPH09507425A (en) * | 1993-12-30 | 1997-07-29 | ゾール，ペーター | Composition for water treatment and soil reconditioning |
| WO2001070648A1 (en) | 2000-03-21 | 2001-09-27 | Groupe Meac S.A.S | Novel agents and dust free compositions, method for obtaining same and use in particular for soil amendment |
| JP2012020890A (en) * | 2010-07-13 | 2012-02-02 | Dc Co Ltd | Dust suppressor for calcium-based powder, calcium-based powder, method for manufacturing the calcium-based powder, and method for suppressing calcium-based powder |
-
1986
- 1986-01-23 JP JP1265186A patent/JPS62171919A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01503232A (en) * | 1987-05-18 | 1989-11-02 | エフテーウー ゲーエムベーハー フォルシュング ウント テヒニッシェ エントヴィックルング イム ウムヴェルトシュッツ | Reactive calcium hydroxide-based purification agent for purifying gas and waste gas and method for purifying gas and waste gas |
| JPH09507425A (en) * | 1993-12-30 | 1997-07-29 | ゾール，ペーター | Composition for water treatment and soil reconditioning |
| WO2001070648A1 (en) | 2000-03-21 | 2001-09-27 | Groupe Meac S.A.S | Novel agents and dust free compositions, method for obtaining same and use in particular for soil amendment |
| JP2012020890A (en) * | 2010-07-13 | 2012-02-02 | Dc Co Ltd | Dust suppressor for calcium-based powder, calcium-based powder, method for manufacturing the calcium-based powder, and method for suppressing calcium-based powder |
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