WO2012067531A1 - Procédé permettant d'obtenir des agents destinés à imprégner des matières poreuses pour empêcher un incendie et à éteindre en profondeur des feux dits couvants dans une tourbière et dans des dépôts de charbon et de déchets communaux - Google Patents

Procédé permettant d'obtenir des agents destinés à imprégner des matières poreuses pour empêcher un incendie et à éteindre en profondeur des feux dits couvants dans une tourbière et dans des dépôts de charbon et de déchets communaux Download PDF

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Publication number
WO2012067531A1
WO2012067531A1 PCT/RS2010/000015 RS2010000015W WO2012067531A1 WO 2012067531 A1 WO2012067531 A1 WO 2012067531A1 RS 2010000015 W RS2010000015 W RS 2010000015W WO 2012067531 A1 WO2012067531 A1 WO 2012067531A1
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WO
WIPO (PCT)
Prior art keywords
fire
solution
impregnation
coal
fires
Prior art date
Application number
PCT/RS2010/000015
Other languages
English (en)
Inventor
Nedeljko Dzudzelija
Goran Samardzija
Original Assignee
Capitol W.B.C. D.O.O.
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 Capitol W.B.C. D.O.O. filed Critical Capitol W.B.C. D.O.O.
Priority to CA2853332A priority Critical patent/CA2853332A1/fr
Publication of WO2012067531A1 publication Critical patent/WO2012067531A1/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
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/30—Fireproofing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/18—Compounds of alkaline earth metals

Definitions

  • the subject of this invention relates to the field of chemistry and specifically relates to chemical mixtures dissolved in water. These are used for fire protection impregnation of materials for protection or reduction of fire hazard.
  • the technical problem resolved with this invention consists of the following: how to accomplish a process for obtaining agents for fire inhibiting impregnation of wood, wood products, packaging corrugated cardboard, natural textile materials and other solid porous materials, which can also be used effectively for depth extinction of the so-called smoulder fires on peat land, in coal and communal waste depots and the very process of obtaining this agent and its application should be fully harmless for human beings, flora and fauna and economically acceptable for extensive use.
  • the process of burning has been defined as a chemical process when the burning substance is chemically mixed with oxygen that results in the release of heat and appearance of flame.
  • the burning process is directly connected with the move of molecules in the substance and depends on the distance between them and their mutual force of attraction, the so-called cohesion forces. It is known that those forces are most powerful in solid bodies and least powerful in gasses. This is why we say that molecules of solid bodies “quiver”, or move in an oscillatory manner. It can be concluded that the heat brought to a body actually affects the change of molecule movement speed in this body, it rises. Heat elimination from a body, likewise, lowers the speed of molecules in it.
  • the value that characterizes internal kinetic energy of a substance is called temperature. The following is necessary for the burning process: presence of the substance that burns (burning substance), presence of the substance encouraging burning (oxygen) and heat energy for reaching ignition temperature of the burning substance. If we eliminate any of those conditions or lower their presence, possibilities of fires are considerably reduced, combustion becomes incomplete and fire hazard is reduced to a minimum.
  • EP 1156092 of the inventors disclose a solution for the manufacturing of glues that could be used as a coating material generating fireproof characteristics and containing MgCl 2 .
  • CN 1139626 of the Chinese inventor Fan Hongfei disclose a technical solution containing MgCl 2 and MgO which are mixed with a 5% solution aluminum silicate and this produces resin or rubber serving for coating in order to get fireproof characteristics. This solution is characteristic for its simple process and low prices, but it is not used in those cases when the matter coated should retain its earlier esthetic properties.
  • JP 3170325 of the company Mitsubishi Materials Corp. shows a technical solution of obtaining resins and materials for filling fireproof barrier cavities that also contains MgCl 2 and Mg(OH) 2 that are characteristic for their stability and possibility of being stored over a long period of time.
  • the surface of the treated substance becomes fireproof due to the hygroscopic layer that remains on the surface of the matter for a long time and also all along its depth. This establishes a dynamic balance between absorption of humidity from the air and water evaporation from the whole treated substance.
  • the invention is also characteristic because the mixture, according to the invention, is effectively used in the form of a water solution or foam for fire extinguishing of solid and flammable matters, wood, paper, textile, and coal and similar. It is important that during storage and use it does not produce any poisonous by-products. It is also important that the fire extinguishing solution, according to this invention, can be also used at very low temperatures due to its lower freezing point.
  • the fundamental nature of this invention is also the fact that the mixture dissolved in water has a stronger wetting power and such water is the so-called “wet water” or “penetrating water” that can penetrate to the smallest pores of the burning substance and this increases the effectiveness of flame extinction especially in cases when it is necessary to extinguish the fire substance in the depth of material layers so that the fire- fighting agent reaches the source of fire more easily.
  • the novelty in this invention is that it can be successfully used to put out large forest fires, or prevent their spreading.
  • This solution, according to the invention is particularly effective in flame extinguishing in large areas. Barriers, which have specific widths and would be formed in the direction of the widening of those areas by treating the areas that are not under fire, would be fire-fighting buffer zones that would fully prevent flame spreading or, in case of extremely bad conditions, they would much reduce it or slow it down. In the regions where fires are expected, preventive placement of the agent, according to the invention, on most threatened localities would downgrade the outbreak of fires to a minimum.
  • the solution can be used as foam consisting of bubbles whose membrane is made of the solution - emulsion whereas the interior is filled with air.
  • foam is called air foam and is formed in one of the well known ways in two phases.
  • the first phase includes the forming of the solution and the second phase comprises the forming of foam from the obtained solution by means of comet tubes (foam nozzles; movable and fixed, throwers - monitors, or foam generators).
  • Foam formed from the solution according to the invention, has stability within certain limits and this means that it is stable for a short time. Experiments have established that the solution has strength not to prevent the improved properties of flow and slipping. This increases chances of success during fire extinguishing.
  • This invention has a number of advantages by comparison with earlier well known technical solutions that similarly deal with the problem of retard influence on the burning process and with the finding of special substances that can achieve quicker, safer and more effective fire extinguishing in class "A".
  • the most important advantages are as follows:It is ecologically absolutely acceptable because during heating and evaporation it does not develop any matters dangerous or hazardous for the health of people, animals and flora;
  • the firefighting agent eliminating heat from the burning substance is brought in the center of fire and at the moment when the temperature of the burning substance gets lower than the ignition temperature, the burning process automatically stops);
  • Fire protection agent of "A" category solid porous materials: wood, rubber, plastics, paper, cardboard, textile, textile dust, coal, dry plant coal dust, plant residue, etc.
  • A category (solid porous materials: wood, rubber, plastics, paper, cardboard, textile, textile dust, coal, dry plant coal dust, plant residue, etc.) is a solution of the following composition: - 150 g MgCl 2 *6H 2 0,
  • Fire extinction with a solution obtained by simple mixing of the above components in water for 15 minutes is performed in one of the known ways (full jet, sprayed jet or water mist).
  • the jet shape, pressure for generating enough quantity of water mist and the power of pumps for distant throwing of solutions from the tanks are determined by practical field requirements. It is necessary to mention that this solution cannot put out fires where the burning matter is under electrical voltage and fires of Sodium, Potassium, Magnesium, etc., or when there is quick lime, sulphur and alkali matter on the surface affected by fire.
  • treated material retains moisture for a long time and it prevents residual fires (subsequent flames from insufficiently quenched centers).
  • Fire protection agent used to prevent fires of category "A" solid porous materials: wood, rubber, plastics, paper, cardboard, textile, textile dust, coal, dry plant coal dust, plant residue, etc.
  • solid porous materials wood, rubber, plastics, paper, cardboard, textile, textile dust, coal, dry plant coal dust, plant residue, etc.
  • wood after having been cut, is dried in a natural manner (slowly) or artificially (more quickly) and is used as pieces of wood, veneer, panel, plywood, etc.
  • Wood is material that in nature mostly accounts for as flammable matter in fires.
  • the agent used for wood impregnation to acquire the property of inflammability is the following composition:
  • Fire protection impregnation of semi finished products and ready made products of all kinds of hard and soft wood such as chestnut, oak, ash, beech, elm, poplar, nut fruit, fir tree, juniper and pine tree is carried out with the subject mixture in autoclaves under a well established procedure.
  • Application of autoclaves performs a subsurface structural fire protection wood impregnation that also allows further treatment of semi-finished wooden products and finished products when all properties of fire protection impregnation have been retained.
  • Effective use of the mixture concerned in subsurface structural fire protection impregnation of all kinds of hard wood is done in autoclaves.
  • subsurface fire protection In addition to subsurface fire protection, fungicide and insecticide protection and UV radiation protection are also achieved by applying this mixture.
  • subsurface fire protection impregnation of conifers are achieved in trees with a relative moisture up to 15 % whereas subsurface fire protection impregnation of deciduous (hard) trees is achieved with the moisture content between 18% and 30%.
  • most successful fire protection impregnation is achieved with the moisture content between 20% and 25%. With such percent moisture content in conifers, it is not possible to perform effect subsurface fire protection as this protection is formed on a thin surface layer of wood of several millimeters only.
  • Wood to be impregnated for fire protection is brought into the autoclave
  • Period of vacuum continuation varies depending on needs and it can last from 30 minutes to 80 minutes;
  • fire protection impregnated wood must be dried to the planned quantity of moisture. This drying process can be done naturally or forcibly (in drying chambers). After evaporation of water surplus, active components of the mixture concerned remain permanently bonded to the whole wood structure - on the surface and in subsurface.
  • the wood so treated can be cut, sawed or in any other way treated pursuant to the needs, with no exposed surfaces left untreated.
  • Impregnation is done when the raw materials are immersed in the solution made of components combined in the quoted mass proportions, according to this example, for the duration of 5 minutes. After this period of time, they are taken out and dried naturally at room temperature. The materials impregnated in this manner fully retain their properties as at the time before impregnation. They have only gained the property of non- flammability through the above process.
  • the laying down of the solution on the above materials is possible by sprays or in some other well known manner of the lying down of the solution so that it is uniformly and compactly lain down on the whole treated surface.
  • Wood - oak ⁇ - - kg/m 3 (boards 2,5x100x1000 mm)
  • Figure 1 shows the results of worked times with calculated mean values of mass loss depending on the time of exposure to fire.
  • Line A indicates the protected sample and line B indicates the non-protected sample.
  • the diagram clearly shows that the change curve rises up to 7% over the time period of 4 minutes and after flame extinction it becomes constant.
  • wetting agent on the market under various commercial brand names can be used as a wetting agent.
  • low foam wetting agents can be used, or rather alcoxylated oxo-alcohols C 13 - C 15 obtained by alcoholation of ethylene and propylene oxide or some other effective wetting agents.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Cette invention concerne le domaine de la chimie et porte sur un procédé permettant d'obtenir des agents destinés à imprégner des matières poreuses pour empêcher un incendie et à éteindre en profondeur des feux dits couvants dans une tourbière et dans des dépôts de charbon et de déchets communaux. L'invention permet de résoudre un problème technique, le procédé permettant d'obtenir un mélange qui, grâce à un traitement spécial, imprègne en protégeant contre l'incendie du bois et des produit du bois, du carton ondulé d'emballage, du textile de matières naturelles et d'autres matières poreuses dures. Il peut également être efficacement appliqué pour l'extinction sous la surface de feux couvants dans une tourbière et des dépôts de charbon et de déchets communaux. Ceci a été réalisé de sorte que le mélange soit composé de chlorure de magnésium (MgCl2) anhydre et de l'agent mouillant dilué dans de l'eau en proportions en poids précisément spécifiées qui sont ultérieurement soumis à imprégnation. Après ceci, il y a un recouvrement immédiat de la matière traitée d'une couche hygroscopique qui a des propriétés de lutte contre l'incendie et sert d'ignifugeant.
PCT/RS2010/000015 2010-11-18 2010-11-23 Procédé permettant d'obtenir des agents destinés à imprégner des matières poreuses pour empêcher un incendie et à éteindre en profondeur des feux dits couvants dans une tourbière et dans des dépôts de charbon et de déchets communaux WO2012067531A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2853332A CA2853332A1 (fr) 2010-11-18 2010-11-23 Procede permettant d'obtenir des agents destines a impregner des matieres poreuses pour empecher un incendie et a eteindre en profondeur des feux dits couvants dans une tourbiere et dans des depots de charbon et de dechets communaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RS20100504A RS20100504A3 (en) 2010-11-18 2010-11-18 PROCEDURE FOR OBTAINING FIRE IMPREGNATION MEASURES OF POROUS MATERIALS AND DEPTH EXTINGUISHING SMOKING FIRE IN THREATS, COALS AND MUNICIPAL WASTES
RSP-2010/0504 2010-11-18

Publications (1)

Publication Number Publication Date
WO2012067531A1 true WO2012067531A1 (fr) 2012-05-24

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PCT/RS2010/000015 WO2012067531A1 (fr) 2010-11-18 2010-11-23 Procédé permettant d'obtenir des agents destinés à imprégner des matières poreuses pour empêcher un incendie et à éteindre en profondeur des feux dits couvants dans une tourbière et dans des dépôts de charbon et de déchets communaux

Country Status (3)

Country Link
CA (1) CA2853332A1 (fr)
RS (1) RS20100504A3 (fr)
WO (1) WO2012067531A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156147A (zh) * 2015-09-15 2015-12-16 辽宁工程技术大学 一种抑制高硫煤自燃的阻化剂
CN107553642A (zh) * 2017-09-19 2018-01-09 安徽嘉美工艺品有限公司 一种防止水曲柳木开裂的干燥方法
CN111054014A (zh) * 2019-12-31 2020-04-24 西安森兰科贸有限责任公司 一种新型高密度泡沫阻化防灭火剂及其制备方法
CN111844300A (zh) * 2020-07-29 2020-10-30 宿州洛通木业有限公司 一种防火木材处理方法
CN113209540A (zh) * 2021-03-31 2021-08-06 北京欣合盛信息科技有限公司 一种可直接投放的缓释固体防灭火材料及其制备方法
CN114654550A (zh) * 2022-01-10 2022-06-24 东北林业大学 一种阻燃木材及其制备方法、金属卤化物的用途

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10815427B2 (en) 2017-11-17 2020-10-27 Branislav R. Simonovic Fire-retardant for an insulation product

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562967C (de) * 1927-12-28 1932-10-31 Excelsior Feuerloeschgeraete A Erzeugung frostsicherer schaumbildender Feuerloeschloesungen
US3457172A (en) * 1966-08-10 1969-07-22 Flame Out Inc Flame extinguishing composition
GB1387222A (en) * 1972-07-14 1975-03-12 Kalk Chemische Fabrik Gmbh Flameproofing of wood
GB1470070A (en) * 1973-12-19 1977-04-14 Kalk Chemische Fabrik Gmbh Process for the flame-profing impregnation of wood

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562967C (de) * 1927-12-28 1932-10-31 Excelsior Feuerloeschgeraete A Erzeugung frostsicherer schaumbildender Feuerloeschloesungen
US3457172A (en) * 1966-08-10 1969-07-22 Flame Out Inc Flame extinguishing composition
GB1387222A (en) * 1972-07-14 1975-03-12 Kalk Chemische Fabrik Gmbh Flameproofing of wood
GB1470070A (en) * 1973-12-19 1977-04-14 Kalk Chemische Fabrik Gmbh Process for the flame-profing impregnation of wood

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156147A (zh) * 2015-09-15 2015-12-16 辽宁工程技术大学 一种抑制高硫煤自燃的阻化剂
CN107553642A (zh) * 2017-09-19 2018-01-09 安徽嘉美工艺品有限公司 一种防止水曲柳木开裂的干燥方法
CN111054014A (zh) * 2019-12-31 2020-04-24 西安森兰科贸有限责任公司 一种新型高密度泡沫阻化防灭火剂及其制备方法
CN111844300A (zh) * 2020-07-29 2020-10-30 宿州洛通木业有限公司 一种防火木材处理方法
CN113209540A (zh) * 2021-03-31 2021-08-06 北京欣合盛信息科技有限公司 一种可直接投放的缓释固体防灭火材料及其制备方法
CN114654550A (zh) * 2022-01-10 2022-06-24 东北林业大学 一种阻燃木材及其制备方法、金属卤化物的用途
CN114654550B (zh) * 2022-01-10 2023-09-26 东北林业大学 一种阻燃木材及其制备方法、金属卤化物的用途

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Publication number Publication date
RS20100504A3 (en) 2013-10-31
CA2853332A1 (fr) 2012-05-24
RS20100504A2 (en) 2012-06-30

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