JPS61163148A - Manufacture of expanded perlite - Google Patents
Manufacture of expanded perliteInfo
- Publication number
- JPS61163148A JPS61163148A JP246185A JP246185A JPS61163148A JP S61163148 A JPS61163148 A JP S61163148A JP 246185 A JP246185 A JP 246185A JP 246185 A JP246185 A JP 246185A JP S61163148 A JPS61163148 A JP S61163148A
- Authority
- JP
- Japan
- Prior art keywords
- pearlite
- water
- raw material
- particle size
- manufacture
- 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
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は微粉パーライトを顆粒化し焼成発泡させる膨脹
パーライトの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing expanded pearlite in which finely powdered pearlite is granulated and fired and foamed.
一般ニ、パーライトを焼成発泡させる場合、その原料積
石の粒度は７メツシユ（２，８＋ａｍ）〜２００メツシ
ュ（０，０７４ｍｍ）の範囲のものが利用され。In general, when perlite is fired and foamed, the particle size of the raw material stone is in the range of 7 mesh (2,8+am) to 200 mesh (0,074 mm).
２００メツシユ以下の微粉は極力除去されるのが通例で
ある。２００メツシユ以下の微粉の多い積石の場合、焼
成炉への供給輸送経路、例えばホッパー、シュート、フ
ィーダー等での粒度偏析が激しく、給鉱速度の不均一等
から炉内での溶融トラブルを起したり、あるいはこの微
粉が未膨脹または膨脹不充分のまま製品中に混入し。It is customary to remove fine powder of 200 mesh or less as much as possible. In the case of stacked stones with a lot of fine powder of 200 mesh or less, there is severe grain size segregation in the supply transportation route to the firing furnace, such as hoppers, chutes, feeders, etc., and melting problems in the furnace can occur due to uneven ore feeding speed. Or, this fine powder may be mixed into the product as unexpanded or insufficiently expanded.
品質あるいは歩留りの低下をきたす原因となっていた。This caused a decline in quality or yield.
このため２００メツシユ以下の微粉は極力分離除去し
て廃棄している（３〜１０％）が、この廃棄による原料
コスト高の問題と、廃棄処分による環境汚染が問題とな
っている。For this reason, fine powder of 200 meshes or less is separated and removed as much as possible and discarded (3 to 10%), but this disposal raises the problem of high raw material costs and environmental pollution due to disposal.
本発明は従来廃棄処分されていた微粉パーライトを通常
原料積石の粒度程度に顆粒化することにより、原料とし
て使用可能とし、歩留りの向上と環境問題を一挙に解決
し得る膨脹パーライトの製造方法を提供することを目的
とするものである。The present invention provides a method for manufacturing expanded pearlite that can be used as a raw material by granulating fine powder pearlite, which has conventionally been disposed of, to a particle size similar to that of ordinary raw material stacked stone, thereby improving yields and solving environmental problems at once. The purpose is to provide
すなわち、本発明は微粉パーライトに予め水、少量の無
機物と水、無機塩の水溶液のいずれかを添加し顆粒化し
た後、これを焼成発泡させる膨脹パーライトの製造方法
である。That is, the present invention is a method for producing expanded pearlite, in which water, a small amount of an inorganic substance and water, or an aqueous solution of an inorganic salt is added in advance to finely powdered pearlite to form granules, and then the granules are fired and foamed.
本発明において、無機物の代表例としてはベントナイト
等が挙げられ、また無機塩の代表例としては水ガラス、
ソーダ灰等が挙げられる。In the present invention, representative examples of inorganic substances include bentonite, and representative examples of inorganic salts include water glass,
Examples include soda ash.
微粉パーライトに添加される水、少量の無機物と水、無
機塩の水溶液は微粉パーライトの性状等に応じて適宜選
択される。また、これら水またはバインダーの添加量も
原料微粉の性状１粒度に負うところが大であり、顆粒化
が達成される範囲で適当量とすればよい。これら顆粒化
は市販されている種々の粉体造粒機によって行い得る。Water, a small amount of inorganic substance and water, and an aqueous solution of an inorganic salt to be added to the fine pearlite are appropriately selected depending on the properties of the fine pearlite. Furthermore, the amount of water or binder added depends largely on the particle size of the raw material fine powder, and may be adjusted to an appropriate amount within a range that achieves granulation. These granulations can be performed using various commercially available powder granulators.
顆粒化させる粒度は通常原料積石の粒度、すなわち７〜
２００メツシユに近いものにするが。The particle size to be granulated is usually the particle size of the raw material stone, i.e. 7~
I'll make it close to 200 meshes.
好ましくは４８メツシユ（０，１４７ｍｍ）〜２００メ
ツシュの範囲で一膨脹パーライトの使用目的に応じて適
宜調整する。なお、粒度が大きすぎると膨脹が不十分と
なる。顆粒化後には乾燥機で乾燥し、ここに所望の粒度
となした顆粒状パーライトが得られる。The thickness is preferably adjusted within the range of 48 meshes (0.147 mm) to 200 meshes depending on the intended use of the expanded pearlite. Note that if the particle size is too large, expansion will be insufficient. After granulation, it is dried in a drier to obtain granulated pearlite having a desired particle size.
かくして得られる顆粒状パーライトは通常積石と同様の
方法で焼成発泡させて膨脹パーライトを製造する６なお
、これら顆粒状パーライトを通常積石に混合して焼成し
ても何らさしつかえない。The granular pearlite thus obtained is fired and foamed in the same manner as ordinary stone piles to produce expanded pearlite.6 Note that there is no problem even if these granular pearlites are mixed with ordinary stone piles and fired.
以下に実施例を示す。Examples are shown below.
実施例
表−１に示す粒度の原料微粉パーライトを用い、これら
を同じく表−１に示す量の水、バインダーを用い４種類
の顆粒状パーライトを得た。EXAMPLES Four types of granular pearlite were obtained using raw material fine powder pearlite having the particle size shown in Table 1 and using water and binder in the amounts shown in Table 1.
これら顆粒状パーライトの粒度を表−１に示す。Table 1 shows the particle sizes of these granular pearlites.
表 −１
得られた顆粒状パーライトを原料として焼成発泡して得
た膨脹パーライトの性状等を表−２に示す２
表 −２
膨脹パーライトの品質は見掛密度と水に浮上する部分の
量で見るが、見掛密度は通常積石より重いが、水浮上分
Ｖよび歩留りは通常積石とほぼ同様になった。使用目的
によっては顆粒状パーライトの方が適している場合もあ
る６以上のような本発明によれば、これまで廃棄されて
いた微粉パーライトを顆粒化することにより、通常積石
と変ることのない原料として使用でき、歩留りの向上と
ともに廃棄による環境問題も解決でき、微粉パーライト
を使用する場合にみられる粒度偏析による焼成炉までの
運搬設備でのトラブルあるいは炉の溶融トラブルが完全
に解消され、炉の安全操業が得られる等の効果が発揮さ
れ、極めて有用な方法が得られる。Table 1 The properties of expanded pearlite obtained by firing and foaming the obtained granular pearlite as a raw material are shown in Table 2 Table 2 The quality of expanded pearlite is determined by its apparent density and the amount of the part that floats on water. As you can see, the apparent density is heavier than normal stacked stone, but the water floating fraction V and yield are almost the same as normal stacked stone. Granular pearlite may be more suitable depending on the purpose of use. According to the present invention as described above, by granulating fine powder pearlite that has been discarded up to now, it is no different from ordinary stone piles. It can be used as a raw material, improving yields and solving environmental problems caused by disposal, and completely eliminates troubles in transportation equipment to the firing furnace or melting problems in the furnace due to particle size segregation that occurs when using fine pearlite powder. This method achieves effects such as safe operation of the system, and provides an extremely useful method.
Claims (1)
塩の水溶液のいずれかを添加し顆粒化した後、これを焼
成発泡させる膨脹パーライトの製造方法。1. A method for producing expanded pearlite, in which water, a small amount of an inorganic substance and water, or an aqueous solution of an inorganic salt is added in advance to finely powdered pearlite to form granules, and then the granules are fired and foamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP246185A JPS61163148A (en) | 1985-01-10 | 1985-01-10 | Manufacture of expanded perlite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP246185A JPS61163148A (en) | 1985-01-10 | 1985-01-10 | Manufacture of expanded perlite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163148A true JPS61163148A (en) | 1986-07-23 |
Family
ID=11529937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP246185A Pending JPS61163148A (en) | 1985-01-10 | 1985-01-10 | Manufacture of expanded perlite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163148A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310940A (en) * | 2014-09-29 | 2015-01-28 | 宁波荣山新型材料有限公司 | Artificial perlite and puffed products and preparation method of artificial perlite |
| PL423475A1 (en) * | 2017-11-16 | 2019-05-20 | Politechnika Lodzka | Method for producing granular pearlite from the waste pearlite |
| PL424940A1 (en) * | 2018-03-19 | 2019-09-23 | Politechnika Łódzka | Method for producing granular material from the waste pearlite |
| PL424941A1 (en) * | 2018-03-19 | 2019-09-23 | Politechnika Łódzka | Method for producing granular material from the waste pearlite |
| DE112021006587T5 (en) | 2020-12-21 | 2023-10-12 | Yazaki Energy System Corporation | Foam glass body, thermal insulation material with foam glass body and method for producing a foam glass body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114218A (en) * | 1977-03-17 | 1978-10-05 | Takashi Ishikawa | Fire proof composite panel for building material |
-
1985
- 1985-01-10 JP JP246185A patent/JPS61163148A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114218A (en) * | 1977-03-17 | 1978-10-05 | Takashi Ishikawa | Fire proof composite panel for building material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310940A (en) * | 2014-09-29 | 2015-01-28 | 宁波荣山新型材料有限公司 | Artificial perlite and puffed products and preparation method of artificial perlite |
| PL423475A1 (en) * | 2017-11-16 | 2019-05-20 | Politechnika Lodzka | Method for producing granular pearlite from the waste pearlite |
| PL424940A1 (en) * | 2018-03-19 | 2019-09-23 | Politechnika Łódzka | Method for producing granular material from the waste pearlite |
| PL424941A1 (en) * | 2018-03-19 | 2019-09-23 | Politechnika Łódzka | Method for producing granular material from the waste pearlite |
| DE112021006587T5 (en) | 2020-12-21 | 2023-10-12 | Yazaki Energy System Corporation | Foam glass body, thermal insulation material with foam glass body and method for producing a foam glass body |
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