JPS61143485A - Spraying agent for preventing scattering of dust - Google Patents
Spraying agent for preventing scattering of dustInfo
- Publication number
- JPS61143485A JPS61143485A JP26578884A JP26578884A JPS61143485A JP S61143485 A JPS61143485 A JP S61143485A JP 26578884 A JP26578884 A JP 26578884A JP 26578884 A JP26578884 A JP 26578884A JP S61143485 A JPS61143485 A JP S61143485A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- agent
- spraying agent
- fresh water
- scattering
- 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
- Prevention Of Fouling (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、粉じん飛散防止用散布剤の改良に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an improvement in a dispersing agent for preventing dust scattering.
従来、粉じん飛散防止用の散布剤としては、主として有
機系高分子樹脂を主成分としたものが多く、一部には無
機材料のセメントモルタルによるものもある。これらは
、いずれも貯炭カードや鉱石ヤードでの貯蔵パネル表面
に水溶液状にて散布し、パイル表面の微細な粒子を凝集
させるか、又はパイル表面そのものをコーティングして
粉じん飛散の防止を計うている。Conventionally, most of the dispersing agents for preventing dust scattering are mainly made of organic polymer resins, and some are made of cement mortar, which is an inorganic material. These are either sprayed in aqueous solution onto the surface of coal storage cards or storage panels in ore yards to agglomerate fine particles on the pile surface, or coat the pile surface itself to prevent dust from scattering. There is.
しかしながら、有機系の粉じん飛散防止用散布剤は、ヤ
ード排水中のＣＯＤ （Ｃｈ＠ｍ１ｃａｌ ｏｚｙｇｅ
ｎｄ＠ｍａｎｄ）濃度を、又石炭の燃焼に際しては熱焼
ガス中のＮＯｘ濃度を増加させる欠点を有する。However, organic dust scattering prevention spraying agents can reduce COD (Ch@m1cal ozyge) in yard wastewater.
This has the drawback of increasing the NOx concentration in the sintered gas when burning coal.
本発明は上記事情に鑑みてなされたもので、粉じんの飛
散１．ＣＯＤ濃度やＮＯｘ濃度を増加させることなく防
止し得る粉じん飛散防止用散布剤を提供することを目的
とする。The present invention has been made in view of the above circumstances, and includes: 1. dust scattering; It is an object of the present invention to provide a dust scattering prevention agent that can prevent COD concentration and NOx concentration without increasing them.
〔問題を解決するための手段）
本発明は、清水中に該清水に対し５０乃至７５重量−の
石炭灰及び０．５乃至２重量−の硬化剤を溶解させるこ
とを特徴とするもので、生石灰の硬化反応を利用して粉
じん飛散防止を図ることができる。[Means for solving the problem] The present invention is characterized in that 50 to 75 weight of coal ash and 0.5 to 2 weight of hardening agent are dissolved in fresh water, Dust scattering can be prevented by utilizing the hardening reaction of quicklime.
本発明によれば、石炭灰は硬化して散布面に存在する微
細な粉じん粒子を凝集させると共に、散布面そのものを
コーティングし、これによシ粉じんの発生を抑制できる
。また、石炭灰及び生石灰は無機質であるから、排水水
質および燃焼排ガスへの影響もなく、ＣＯＤ濃度や、Ｎ
Ｏｘ濃度の増加を回避できる。According to the present invention, the coal ash hardens to agglomerate fine dust particles present on the spraying surface, and coats the spraying surface itself, thereby suppressing the generation of dust. In addition, since coal ash and quicklime are inorganic, they have no effect on wastewater water quality or combustion exhaust gas, and reduce COD concentration and N
An increase in Ox concentration can be avoided.
本実施例に係る粉じん飛散防止用散布剤は、石炭灰とし
てのフライアッシュと硬化剤としての生石灰から構成さ
れ、これら両者の濃度は清水に対し、
７ライアツシ、濃度；５０〜７５重量−生石灰濃度
；０，５〜２重量％である。そしズ、これらを清水
中に溶解して水溶液状で散布する。この際、散布量に単
位面積当シ１〜５１で良い。The scattering agent for preventing dust scattering according to the present example is composed of fly ash as coal ash and quicklime as a hardening agent, and the concentration of both of these is 7 liters of fresh water, concentration: 50 to 75 weight - quicklime concentration
;0.5-2% by weight. Then, dissolve these in fresh water and spray as an aqueous solution. At this time, the amount of spraying may be 1 to 51 per unit area.
こうした構成の散布剤における作用は、以下に述べる通
シである。即ち、フライアッシュの硬化反応は、
３Ａｊ ２０ ｓ ・２８１０２＋１２ＣａＯ＋ ２１
Ｈ２０−＋３ＣａＯ”２ＳｉＯ２”３Ｈ２０＋３（ＣＩ
Ｏ−Ａ／：２０．・６Ｈ２０）となる。上記反応式より
、フライアッシュの生成分であるムライト（２Ａｔ２０
３・２Ｓ量０２）と生石灰との硬化反応によシカルシウ
ムシリケート（３０ａＯ−２８１０２−３Ｈ２０）とカ
ルシウムアルミケート（３ＣａＯ・Ａｊ２０．−６Ｈ２
０）を生成することが確認できる。つま）、フライアッ
シュは硬化し、散布面に存在する微細な粉じん粒子を凝
集させると共に、散布面そのものをコーティングし、粉
じんの発生を抑制する。The effects of the dispersing agent having such a structure are as described below. That is, the hardening reaction of fly ash is 3Aj 20 s ・28102+12CaO+ 21
H20−+3CaO”2SiO2”3H20+3(CI
O-A/:20.・6H20). From the above reaction formula, mullite (2At20
Calcium silicate (30aO-28102-3H20) and calcium aluminate (3CaO・Aj20.-6H2
0) can be confirmed to be generated. The fly ash hardens and aggregates the fine dust particles present on the spraying surface, and coats the spraying surface itself, suppressing the generation of dust.
しかして、本発明の散布剤によれば、清水中に該清水に
対し５０〜７５重量−の７ライアツシ１、及び０．５〜
２重量％の生石灰を溶解することＫよシ、上述した如く
７ライアツシ、は硬化して散布面に存在する微細な粉じ
ん粒子を凝集させると共に、散布面そのものをコーティ
ングし、粉じんの発生を抑制できる。また、フライアッ
シュ及び生石灰は無機質のものであるため、排水水質お
よび燃焼排ガスへの影響はな〈従来の如きＣＯＤ濃度や
ＮＯｘ濃度の増加を回避できる。Therefore, according to the spraying agent of the present invention, in the fresh water, 50 to 75% by weight of 7 lya 1 and 0.5 to 75% of the fresh water are added.
By dissolving 2% by weight of quicklime, as mentioned above, the 7-liquid lime hardens and aggregates the fine dust particles present on the sprayed surface, and coats the sprayed surface itself, suppressing the generation of dust. . Furthermore, since fly ash and quicklime are inorganic, they do not affect the quality of waste water or combustion exhaust gas (the conventional increase in COD concentration and NOx concentration can be avoided).
なお、上記実施例では、フライアッシー２５０〜７５重
量％、生石灰を０．５〜２重量％と制限したが、これら
の範囲以外では十分な粉じん発生の抑制ができない。In the above embodiment, the fly assemblage was limited to 250 to 75% by weight and the quicklime content was limited to 0.5 to 2% by weight, but dust generation cannot be sufficiently suppressed outside these ranges.
また、上記実施例では、硬化剤として生石灰を用いたが
、これに限らず、例えば石灰石を用いても良い。Further, in the above embodiment, quicklime was used as the hardening agent, but the hardening agent is not limited to this, and for example, limestone may be used.
Claims (1)
及び０．５乃至２重量％の硬化剤を溶解させたことを特
徴とする粉じん飛散防止用散布剤。A dispersing agent for preventing dust scattering, characterized in that 50 to 75% by weight of coal ash and 0.5 to 2% by weight of a hardening agent are dissolved in fresh water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26578884A JPS61143485A (en) | 1984-12-17 | 1984-12-17 | Spraying agent for preventing scattering of dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26578884A JPS61143485A (en) | 1984-12-17 | 1984-12-17 | Spraying agent for preventing scattering of dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61143485A true JPS61143485A (en) | 1986-07-01 |
Family
ID=17422050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26578884A Pending JPS61143485A (en) | 1984-12-17 | 1984-12-17 | Spraying agent for preventing scattering of dust |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61143485A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619100B1 (en) | 2006-02-20 | 2006-09-05 | 김희영 | Composition for reducing fugitive dust for spray paint |
| CN107099274A (en) * | 2017-05-03 | 2017-08-29 | 黑龙江省长城化工建材研究所 | Administer the environmentally friendly coverture of haze powder shipping storage process airborne dust |
-
1984
- 1984-12-17 JP JP26578884A patent/JPS61143485A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619100B1 (en) | 2006-02-20 | 2006-09-05 | 김희영 | Composition for reducing fugitive dust for spray paint |
| CN107099274A (en) * | 2017-05-03 | 2017-08-29 | 黑龙江省长城化工建材研究所 | Administer the environmentally friendly coverture of haze powder shipping storage process airborne dust |
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