DE3001930A1 - Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting - Google Patents

Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting

Info

Publication number
DE3001930A1
DE3001930A1 DE19803001930 DE3001930A DE3001930A1 DE 3001930 A1 DE3001930 A1 DE 3001930A1 DE 19803001930 DE19803001930 DE 19803001930 DE 3001930 A DE3001930 A DE 3001930A DE 3001930 A1 DE3001930 A1 DE 3001930A1
Authority
DE
Germany
Prior art keywords
slag
agent
grit
ice
strewing
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.)
Withdrawn
Application number
DE19803001930
Other languages
German (de)
Inventor
Gerhard 3320 Salzgitter Friedrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRIEDRICH ERICH METALL HUETTE
Original Assignee
FRIEDRICH ERICH METALL HUETTE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FRIEDRICH ERICH METALL HUETTE filed Critical FRIEDRICH ERICH METALL HUETTE
Priority to DE19803001930 priority Critical patent/DE3001930A1/en
Publication of DE3001930A1 publication Critical patent/DE3001930A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/18Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
    • C09K3/185Thawing materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Structures (AREA)

Abstract

Strewing agent for slippery ice- and snow-covered paths and roads consists of slag granules obtd. in the smelting process. Granules obtd. in desulphurisation, based on soda, are pref. Environmental pollution is reduced considerably compared with the use of salt contg. Cl. If alkaline slag is used, thawing is effected without the formation of harmful acids and there is no damage to the road surface. The slag pref. contains ca. 70% dead fraction and 30% magnetic fraction. The upper particle size of the granules is 5 mm. Max. 15% thawing agent, e.g. salt etc., and be added.

Description

Streumittel für rutschige Wege und StraßenGrit for slippery paths and roads

Die Erfindung betrifft ein Streumittel für rutschige Wege und Straßen infolge Eis- und Schneebelastung.The invention relates to a grit for slippery paths and roads as a result of ice and snow loads.

Es ist bekannt, daß Streumittel, die ganz oder im Wesentlichen aus chlorhaltigen Salzen bestehen, eine hohe Umweltbelastung darstellen. Derartige Streumittel führen aufgrund ihres Chlorgehaltes zum Absterben der Pflanzen am Rand der Wege und Straßen. Außerdem greifen diese Streumittel den Straßenbelag an.It is known that grit, which consists entirely or essentially chlorine-containing salts represent a high level of environmental pollution. Such grit due to their chlorine content lead to the death of the plants at the edge of the paths and roads. In addition, these grit attack the road surface.

Schließlich stellen sie eine hohe Belastung für Kläranlagen dar, da sie das Abwasser ansäuern und damit aus dem für die biologische Klärung optimalen ph-Bereich von 7 bis 8 bringen.After all, they pose a high burden for sewage treatment plants, there they acidify the wastewater and thus out of the water that is optimal for biological clarification Bring the pH range from 7 to 8.

Der Erfindung liegt die Aufgabe zugrunde, ein Streumittel zu finden, das die Umweltbelastung wesentlich verringert.The invention is based on the object of finding a grit, which significantly reduces the environmental impact.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Streumittel aus beim Verhüttungsprozeß anfallenden Schlackenkörnern besteht. Diese Schlackenkörner entstehen beim Hochofen- oder Stahlwerksprozeß durch Verspritzen oder beim Abziehen der Schlacke.According to the invention, this object is achieved by that the grit consists of slag grains produced during the smelting process. These slag grains are produced by spraying in the blast furnace or steelworks process or when removing the slag.

Sie bestehen aus Eisenoxid sowie aus Schlacken, die alkalische Salze enthalten, wobei der Salzgehalt bei Schlackenkörnern, die bei dem Entschwefelungsprozeß auf Sodabasis anfallen, besonders groß ist. Diese alkalischen Salze verursachen bei der Verwendung als Streumittel einen Auftaueffekt, ohne daß dabei für die Umwelt schädliche Säuren entstehen. Entsprechend treten auch keine Beschädigungen des Straßenbelages mehr auf.They consist of iron oxide as well as slags that contain alkaline salts contain, the salt content of slag grains that are used in the desulfurization process based on soda, is particularly large. These alkaline salts cause when used as a litter a thawing effect without harming the environment harmful acids are formed. Accordingly, there is also no damage to the road surface more on.

Das erfindungsgemäße Streumittel wirkt sich aber auch indirekt in hohem Maße umweltentlastend aus. Die Schlackenkörner säuern nämlich wegen des alkalischen Schlackenanteiles nicht mehr das Abwasser an. Sie tragen sogar dazu bei, den ph-Wert des in die Kläranlage einlaufenden Abwassers in den optimalen Bereich zu bringen.However, the scattering agent according to the invention also has an indirect effect environmentally friendly to a high degree. The slag grains acidify because of the alkaline Slag portion no longer affects the wastewater. They even help improve the pH of the wastewater entering the sewage treatment plant in the optimal range.

Daneben werden die biologischen Verhältnisse in der Kläranlage auch durch die Eisen anteile des Streumittels günstig beeinflußt, da diese Eisenanteile wenigstens zum Teil oxidiert sind und deshalb mit dem Wasser gut reagieren. Hierdurch erhöht sich die Leistungsfähigkeit der biologischen Reinigung. Das erfindungsgemäße Streumittel ist somit nicht nur umweltunschädlich, sondern beeinflußt gewisse Bereiche sogar positiv.In addition, the biological conditions in the sewage treatment plant are also positively influenced by the iron content of the grit, as this iron content are at least partially oxidized and therefore react well with the water. Through this the efficiency of the biological cleaning increases. The inventive Litter is therefore not only harmless to the environment, but also affects certain areas even positive.

Weitere Vorteile bestehen darin, daß die Schlackenkörner auch bei Temperaturen, bei denen die bekannten Auftaumittel nicht mehr wirken, noch rutschhemmende Eigenschaften haben, so daß es auch bei extremen Temperaturen eingesetzt werden kann.Nicht zuletzt ist das Streumittel, da es sich um ein Abfallprodukt handelt, auch vergleichsweise billig.Further advantages are that the slag grains also with Temperatures at which the known de-icing agents no longer work, still anti-slip Have properties so that it can be used even at extreme temperatures used Last but not least, since it is a waste product, the grit is also comparatively cheap.

Als besonders geeignet haben sich Schlackenkörner erwiesen, die einen Taubanteil im Bereich von etwa 7o % und einen Magnetanteil im Bereich von etwa 30 % haben.Slag grains that have a Deaf share in the range of around 70% and a magnet share in the range of around 30 % to have.

Die Schlackenkörner sollten vorzugsweise eine obere Korngröße von 5mm nicht übersteigen, da auf diese Weise große Oberflächen zur Bildung des Taueffektes entstehen.The slag grains should preferably have an upper grain size of Do not exceed 5mm, as this creates large surfaces for the formation of the dew effect develop.

Bei extremen Temperaturen kann dem erfindungsgemäßen Streumittel zusätzlich noch ein Auftaumittel wie Salz oder dergleichen zugegeben werden, wobei aufgrund des schon vorhandenen Auftaueffektes geringere Zugaben bis maximal 15 x ausreichen.At extreme temperatures, the grit according to the invention can also a de-icing agent such as salt or the like can be added, due to Due to the already existing thawing effect, smaller additions up to a maximum of 15 times are sufficient.

Claims (5)

Streumittel für rutschige Wege und Straßen Ansprüche: 1. Streumittel für rutschige Wege und Straßen infolge Eis- und Schneebelastung, dadurch gekennzeichnet, daß das Streumittel aus beim Verhüttungsprozeß anfallenden Schlackenkörnern besteht.Grit for slippery paths and roads Requirements: 1. Grit for slippery paths and roads due to ice and snow loads, characterized by that the grit consists of slag grains obtained during the smelting process. 2. Streumittel nach Anspruch 1, dadurch gekennzeichnet, daß das Streumittel aus bei dem Entschwefelungsprozeß auf Sodabasis anfallenden Schlackenkörnern besteht.2. Spreading means according to claim 1, characterized in that the spreading means consists of slag grains from the soda-based desulfurization process. 3. Streumittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Schlackenkörner einen Taubanteil im Bereich von etwa 70 % und einen Magnetanteil im Bereich von etwa 30 % haben.3. Spreading means according to claim 1 or 2, characterized in that the slag grains have a deaf content in the range of about 70% and a magnet content in the range of about 30%. 4. Streumittel nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die'Schlacken- körner eine obere Korngröße von 5mm haben.4. grit according to one or more of claims 1 to 3, characterized characterized that the 'slag- grains have an upper grain size of Have 5mm. 5. Streumlttel nach einem oder- mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Streumittel bis maximal 15 % eines Auftaumittels wie Salz oder dergleichen zugegeben ist.5. Streumlttel according to one or more of claims 1 to 4, characterized characterized that the spreading agent up to a maximum of 15% of a thawing agent such as salt or the like is added.
DE19803001930 1980-01-19 1980-01-19 Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting Withdrawn DE3001930A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803001930 DE3001930A1 (en) 1980-01-19 1980-01-19 Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803001930 DE3001930A1 (en) 1980-01-19 1980-01-19 Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting

Publications (1)

Publication Number Publication Date
DE3001930A1 true DE3001930A1 (en) 1981-07-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803001930 Withdrawn DE3001930A1 (en) 1980-01-19 1980-01-19 Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting

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DE (1) DE3001930A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376693B (en) * 1983-06-10 1984-12-27 Toegel Rudolf Ing METHOD FOR THE PRODUCTION OF GRANULATED SPREADING MATERIAL FOR THE FIGHT AGAINST THE SNOW AND / OR ICE SMOOTH OF TRAFFIC AREAS
WO1987003293A1 (en) * 1985-11-29 1987-06-04 Alkotó Ifjuság Egyesülés Anti-freeze product for snow and ice removal
EP0962512A1 (en) * 1998-05-19 1999-12-08 Leopold Dipl.-Ing. Zwittnig Grit for traffic areas and method for manufacturing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Merkblatt für Maßnahmen gegen Winterglätte auf Straßen, 1969, Forschungsgemeinschaft für das Straßenwesen e.V. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376693B (en) * 1983-06-10 1984-12-27 Toegel Rudolf Ing METHOD FOR THE PRODUCTION OF GRANULATED SPREADING MATERIAL FOR THE FIGHT AGAINST THE SNOW AND / OR ICE SMOOTH OF TRAFFIC AREAS
WO1987003293A1 (en) * 1985-11-29 1987-06-04 Alkotó Ifjuság Egyesülés Anti-freeze product for snow and ice removal
EP0962512A1 (en) * 1998-05-19 1999-12-08 Leopold Dipl.-Ing. Zwittnig Grit for traffic areas and method for manufacturing the same
AT406055B (en) * 1998-05-19 2000-02-25 Zwittnig Leopold SPREADING MATERIAL FOR TRAFFIC AREAS AND METHOD FOR THE PRODUCTION THEREOF

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