WO2003042323A1 - Agent de fonte de la neige et antigel et procede de production de l'agent - Google Patents

Agent de fonte de la neige et antigel et procede de production de l'agent Download PDF

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Publication number
WO2003042323A1
WO2003042323A1 PCT/CN2001/001627 CN0101627W WO03042323A1 WO 2003042323 A1 WO2003042323 A1 WO 2003042323A1 CN 0101627 W CN0101627 W CN 0101627W WO 03042323 A1 WO03042323 A1 WO 03042323A1
Authority
WO
WIPO (PCT)
Prior art keywords
antifreeze
melting
snow
snow melting
mgcl
Prior art date
Application number
PCT/CN2001/001627
Other languages
English (en)
Chinese (zh)
Inventor
Mingkui Han
Original Assignee
Tianjinshi Changluprecisebioche Mistry Co., Ltd.
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 Tianjinshi Changluprecisebioche Mistry Co., Ltd. filed Critical Tianjinshi Changluprecisebioche Mistry Co., Ltd.
Publication of WO2003042323A1 publication Critical patent/WO2003042323A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials 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
    • C09K3/185—Thawing materials

Definitions

  • the invention relates to a snow melting agent and a manufacturing method thereof, and in particular, to a snow melting antifreeze agent with a particle size of 1 to 8 mm and a manufacturing method thereof.
  • the invention also relates to the application of the snow melting antifreeze in snow melting, antifreezing and dust removal. Background technique
  • Snowfall has a serious impact on people's production and life. Therefore, countries are paying more and more attention to snowmelt operations.
  • the traditional main product of snowmelt is sodium chloride, but due to its environmental pollution and poor use in high and cold areas, the amount of use is gradually decreasing.
  • the blended salt magnesium and salt calcium snowmelting agents that are more commonly used in many countries, although they have fast-acting and long-lasting characteristics, have poor fluidity, slightly poor machine mixing uniformity, and contain a lot of sulfate ions. It also has corrosion on road shoulders and bridges, so this product is still not ideal.
  • the existing snow melting agents are all sheet-like in shape, and their shortcomings are poor fluidity, uneven spreading, and difficulty in penetrating into the snow completely, and the contact area with snow is small, resulting in long snow melting time. Therefore, the development of a snow melting agent with good fluidity, uniform spread and short snow melting time is an urgent problem to be solved at present.
  • the primary object of the present invention is to provide a snow melting antifreeze, which is a spherical particle with a particle size of 1 to 8.
  • the snow melting antifreeze has completely overcome the defects of the traditional snow melting agent and provides a brand-new product. ;
  • Another object of the present invention is to provide a method for manufacturing snow melting antifreeze.
  • Another object of the present invention is to provide an application of the snow melting antifreeze in snow melting, antifreeze and dust removal
  • the present invention relates to a snow melting antifreeze, which is composed of NaCl, MgCl 2 ⁇ 6 ⁇ 2 0 and CaCl 2 ⁇ 2H 2 0
  • the composition is characterized in that it is a spherical particle with a particle size of 1 to 8 mm.
  • the snow melting antifreeze according to the present invention may be a composite type, and its composition and weight ratio are:
  • the condition is that the weight ratio of MgCl 2 ⁇ 6H 2 0 and CaCl 2 ⁇ 2H 2 0 cannot be zero at the same time.
  • composition and weight ratio are:
  • composition and weight ratio are:
  • the snow melting antifreeze according to the present invention can be made into a single magnesium type, that is, the weight ratio of NaCl and CaCl 2 ⁇ 2H 2 0 is zero, and its composition is only MgCl 2. 6H 2 0.
  • the snow-melting antifreeze according to the present invention can also be made into a single calcium type, that is, the weight ratio of NaCl and MgCl 2 ⁇ 6H 2 0 is zero, and its composition is only CaCl 2 ⁇ 2H 2 0.
  • the invention also relates to a method for manufacturing the snow melting antifreeze, which method comprises the following steps:
  • the finished product is a spherical snowmelt antifreeze with a particle size of 1-8mm.
  • the granulation equipment used in the present invention is not too limited, as long as it is a tower granulation equipment, it can be used.
  • the present invention uses high-quality magnesium chloride hexahydrate as a raw material, sends it into a melting tank by a bucket elevator, and heats it to 120-15 CTC to melt the magnesium chloride hexahydrate into a molten liquid.
  • the pump is introduced into the mixing tank, and the sodium chloride is sent into the mixing tank with a bucket elevator, and the mixture is stirred in the mixing tank, so that magnesium chloride hexahydrate and sodium chloride are uniformly mixed to form a slurry in which both solid and liquid phases coexist.
  • the slurry is driven to a granulating tower by a feed pump, and granulated using a rotary granulating head (for example, a general granulating head used for urea granulation).
  • a rotary granulating head for example, a general granulating head used for urea granulation.
  • spheroid particles coated with magnesium chloride are coated with sodium chloride as the nucleus.
  • a qualified product—a composite snowmelt antifreeze NaCl—MgCl 2 composite snowmelt antifreeze
  • the heating and melting temperature is 120-150 ° C.
  • the present invention also relates to the application of the snow-melting antifreeze in snow melting, anti-freezing and dust removal.
  • the application is to spray or throw the composite snow melting antifreeze directly on various roads, parks, courtyards or airport sites.
  • the manufacturing method of the invention is not harsh, the equipment is simple, raw materials are easily available, the cost is low, and continuous large-scale production can be achieved.
  • the invention can be directly sprayed or sprayed, and is mainly used for snow melting, antifreezing, and thawing in various roads, parks, courtyards, airports, and other places, as well as for road dust removal, soil stabilization, and cement road antifreeze.
  • the product of the present invention is spherical, the surface is smooth, and the fluidity is very good, which is very suitable for large-scale machine throwing. It is also very convenient to use in the home courtyard. Because the high-quality raw materials with very low sulfate ion are selected, the product of the invention has no adverse effects on road facilities and transportation equipment.
  • the product of the invention has stable use performance, has more uniform mixing, fast and durable snow melting and anti-freezing functions, and can be kept frozen for a long time. Its freezing point is below minus 37.3 ° C, which can ensure effective use in high and cold regions.
  • the courtyard road was 40 meters long and 8 meters wide divided into two areas, of which the length 20 meters wide and 8 meters are sprayed with the snow melting antifreeze of the present invention, the other half is not sprayed.
  • the amount of spraying is based on the ratio of 50 grams of snow melting agent per square meter.
  • the surface of the snow surface has been exposed. The unspreading part of the snow surface has not been melted. After 2.5 hours of spraying, all the snow has melted, the water has not frozen, and the part of the snow surface not sprayed with the anti-freezing agent has not yet melted.
  • the hour temperature was-1.4 ° C.
  • the highest temperature of the day reached 0.8 ° C.
  • 4:00 pm observe the unspreading part of the snow slightly.
  • On the 8th night it snowed 2.3 again, and on the morning of the 9th, it was observed that there was no snow on the road where the snow-melting agent was removed, and the road was not frozen, and the antifreeze effect was obvious.
  • a thin layer of ice has formed on the bottom of the pavement where no snowmelt antifreeze is sprayed.
  • the snow is hard on the ice and the soft fresh snow on the upper layer.
  • the highest temperature on the 9th is 1.2 ° C.
  • the snow has been halved.
  • On the 10th the maximum temperature had reached 2.3 ° C and the snow melted at 3: 00 pm.
  • the above-mentioned spherical sodium-magnesium composite type, single magnesium type and single calcium type snow melting antifreeze agent are the products of the present invention, and others are traditional snow melting agents.
  • the three types of snow-melting antifreezes of the present invention are spheroids, and the biggest features are:
  • the droplets naturally fall on the top of the tower and are cooled into spherical particles.
  • the scraper is sent to the screening machine outside the tower for screening.
  • the qualified products of the spherical and sodium-magnesium composite snowmelting antifreeze with a particle size of 2-4mm are returned to the mixing tank for remelting and granulation.
  • the difference is that the raw materials used are magnesium chloride hexahydrate 6.0% and sodium chloride 4.0 tons to manufacture the sodium-magnesium composite snow-melting antifreeze.
  • the difference is that the raw materials used are magnesium chloride hexahydrate at 7.0 ⁇ and sodium chloride at 3.0 tons to manufacture the sodium-magnesium composite snowmelt antifreeze.
  • the difference is that the raw material used is 10 ⁇ calcium chloride dihydrate to produce a spherical, single-calcium snowmelt antifreeze with a particle size of 2-4.
  • the snow-melting antifreeze according to the present invention is spherical, has a smooth surface, and has good fluidity, which is very suitable for large-scale machine throwing.
  • the raw materials of the invention are of high quality and have no adverse effects on road facilities, transportation equipment and the like.
  • the conditions of the manufacturing method of the present invention are not harsh, the equipment is simple, raw materials are readily available, the cost is low, and continuous large-scale production can be achieved.
  • the anti-freezing agent for snow melting according to the present invention can be directly sprayed or sprayed, and is mainly used for snow melting, anti-freezing, dust removal and soil stabilization in various roads, parks, courtyards, airports, and the like.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

Cette invention concerne une composition d'agent de fonte de la neige et antigel et un procédé de production de la composition. Cette composition contient NaCl, MgCl2.6H2O et CaCl2.6H2O. Elle est caractérisée en ce qu'elle est sphéroïde et sa grosseur granulaire est de 1-8mm. Le procédé consiste à faire chauffer NgCl2.6H2O et CaCl2.6H2O jusqu'à obtention d'un liquide fondu. Ensuite la quantité voulue de NaCl est ajoutée à la fusion. Ces constituants sont alors mélangés pour former une suspension uniforme. Elle est alors pulvérisée dans le dispositif de pulvérisation à tour. La suspension tombe librement du haut de la tour. Après refroidissement, elle forme des granules sphériques. Après un passage au tamis à maille un agent de fonte de neige et antigel a été obtenu, la grosseur des granules étant de 1-8mm. Le produit présente non seulement d'excellentes caractéristiques de fonte de neige, antigel, de dégel et de dépoussiérage, mais également des propriétés de forme, de fluidité et de mélange uniforme uniques. Il est utilisé comme agent de fonte de neige, antigel et de dégel pour des routes, et notamment des jardins, des cours, des aéroports etc., il peut être utilisé comme agent de dépoussiérage pour les routes et comme agent antigel pour des surfaces de route en ciment. L'invention convient d'avantage à une exploitation en machine à grande échelle.
PCT/CN2001/001627 2001-11-13 2001-12-14 Agent de fonte de la neige et antigel et procede de production de l'agent WO2003042323A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB011347945A CN1158375C (zh) 2001-11-13 2001-11-13 复合型融雪防冻剂及其生产工艺
CN01134794.5 2001-11-13

Publications (1)

Publication Number Publication Date
WO2003042323A1 true WO2003042323A1 (fr) 2003-05-22

Family

ID=4672751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2001/001627 WO2003042323A1 (fr) 2001-11-13 2001-12-14 Agent de fonte de la neige et antigel et procede de production de l'agent

Country Status (2)

Country Link
CN (1) CN1158375C (fr)
WO (1) WO2003042323A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11512238B2 (en) 2019-01-30 2022-11-29 Andrew BLANK Infused salt and manufacturing methods

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1305994C (zh) * 2005-04-11 2007-03-21 杨毅男 冰雪速融剂
CN1305995C (zh) * 2005-04-15 2007-03-21 杨毅男 冰雪融
CN100358968C (zh) * 2005-04-15 2008-01-02 杨毅男 融冰除雪剂
CN100357386C (zh) * 2006-04-06 2007-12-26 潍坊昌大化工有限公司 防冻结剂组合物及其制造方法
CN102966219B (zh) * 2012-12-17 2016-04-06 北京喜沸科技有限公司 能够自动融雪的建筑物屋顶和能够自动融雪的公路
CN105349103A (zh) * 2015-12-03 2016-02-24 天津长芦汉沽盐场有限责任公司 一种复合型融雪剂的生产方法
CN106221672B (zh) * 2016-07-29 2017-12-22 中盐金坛盐化有限责任公司 一种高效缓蚀型融雪剂的硬度改良剂及其制备方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416979A2 (fr) * 1978-02-10 1979-09-07 Midi Salines Est Cie Salins Procede de traitement des voies en vue de leur deglacage
JPS6128576A (ja) * 1984-07-19 1986-02-08 Daido Kk 融雪及び凍結防止剤
US5211869A (en) * 1991-07-26 1993-05-18 Ossian, Inc. Pan agglomerated deicer compositions
WO1996008604A1 (fr) * 1994-09-13 1996-03-21 Vladimir Viktorovich Oreshkin Procede de deblaiement des chaussees enneigees et verglacees et preparation dite 'kama' de lutte contre le verglas
CN1125247A (zh) * 1994-12-20 1996-06-26 沈阳市环境卫生科学研究院 除雪化冰剂
JPH0941337A (ja) * 1995-07-28 1997-02-10 Mitsubishi Heavy Ind Ltd 塩化カルシュウム濃度計ならびにそれを用いた融雪剤の散布時期の確定方法
US5711790A (en) * 1994-09-23 1998-01-27 Coller; Miriam Marking composition
US5853610A (en) * 1996-08-26 1998-12-29 Lang & Co. Chemisch-Technische Produkte Kommanditgesellschaft Antifreeze and de-icing agent, especially for the de-icing of surfaces
WO2000011100A1 (fr) * 1998-08-24 2000-03-02 Inter Tec Engineering Co., Ltd. Agent antigel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416979A2 (fr) * 1978-02-10 1979-09-07 Midi Salines Est Cie Salins Procede de traitement des voies en vue de leur deglacage
JPS6128576A (ja) * 1984-07-19 1986-02-08 Daido Kk 融雪及び凍結防止剤
US5211869A (en) * 1991-07-26 1993-05-18 Ossian, Inc. Pan agglomerated deicer compositions
WO1996008604A1 (fr) * 1994-09-13 1996-03-21 Vladimir Viktorovich Oreshkin Procede de deblaiement des chaussees enneigees et verglacees et preparation dite 'kama' de lutte contre le verglas
US5711790A (en) * 1994-09-23 1998-01-27 Coller; Miriam Marking composition
CN1125247A (zh) * 1994-12-20 1996-06-26 沈阳市环境卫生科学研究院 除雪化冰剂
JPH0941337A (ja) * 1995-07-28 1997-02-10 Mitsubishi Heavy Ind Ltd 塩化カルシュウム濃度計ならびにそれを用いた融雪剤の散布時期の確定方法
US5853610A (en) * 1996-08-26 1998-12-29 Lang & Co. Chemisch-Technische Produkte Kommanditgesellschaft Antifreeze and de-icing agent, especially for the de-icing of surfaces
WO2000011100A1 (fr) * 1998-08-24 2000-03-02 Inter Tec Engineering Co., Ltd. Agent antigel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11512238B2 (en) 2019-01-30 2022-11-29 Andrew BLANK Infused salt and manufacturing methods

Also Published As

Publication number Publication date
CN1158375C (zh) 2004-07-21
CN1347948A (zh) 2002-05-08

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