EP1284814A1 - Reacteur le comprenant pour le traitement d'une matiere solide par un gaz ou un melange gazeux nocif - Google Patents
Reacteur le comprenant pour le traitement d'une matiere solide par un gaz ou un melange gazeux nocifInfo
- Publication number
- EP1284814A1 EP1284814A1 EP01919592A EP01919592A EP1284814A1 EP 1284814 A1 EP1284814 A1 EP 1284814A1 EP 01919592 A EP01919592 A EP 01919592A EP 01919592 A EP01919592 A EP 01919592A EP 1284814 A1 EP1284814 A1 EP 1284814A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- reactor
- treated
- treatment
- outlet
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/22—Stationary reactors having moving elements inside in the form of endless belts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/14—Containers, e.g. vats
- D06B23/16—Containers, e.g. vats with means for introducing or removing textile materials without modifying container pressure
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/14—Containers, e.g. vats
- D06B23/18—Sealing arrangements
Definitions
- Reactor for the treatment of a solid material with a harmful gas or gaseous mixture and installation comprising it.
- the invention relates to a reactor and an installation allowing the treatment of a solid material with a reactive gas or a gaseous mixture containing such a gas which cannot be released into the atmosphere due in particular to its toxicity and / or of its polluting effects.
- the toxic and / or polluting component of such a gas or gas mixture is hereinafter called "harmful gas”.
- the treatments in question can be applied to any medium having a structure and properties such that the reactive gas bathes and / or passes through it with an efficiency such that the set goal is achieved.
- the reactor and the installation according to the invention are more particularly intended for the treatment of a solid material in the form of a fibrous mass.
- the reactive gas can be, among others, chlorine, ozone or ammonia.
- the object of the invention is to ensure that the harmful gas does not enter the environment, not only at its outlet from the reactor but also at the inlet of the material to be treated. treat in the reactor and at the outlet of the treated material from the reactor.
- This object defines a general principle of sealing on which the present invention is based.
- a reactor and an installation have been designed which are based on this general principle of sealing.
- the invention relates to a reactor for the continuous treatment of a solid material with a noxious gas or a gas mixture containing at least one noxious gas.
- the "reactive gas” in the treatment is also the “harmful gas”, whereas in the case of a gaseous mixture the “reactive gas” may not itself be harmful but be in the presence of a harmful gas. In general, however, the "reactive gas” in the mixture also constitutes the “harmful gas”. In what follows we will consider that the harmful gas is the reactive gas.
- the reactor according to the invention is based on the principle of the exchange between a reactive (and harmful) gas which is most often mixed with at least one other gas, and a solid matter in motion.
- the reactor according to the invention is therefore a sealed reactor for the continuous treatment of a solid material with a noxious reactive gas, optionally mixed with at least one other gas, characterized in that it operates according to the principles of counter- current and multiple effect.
- the reactor according to the invention comprises means for the introduction of said gas or gas mixture, means for the extraction of the gas mixture resulting from the treatment, means for the introduction of the material to be treated and means for the extraction of the treated material, as well as means for transporting said material between its introduction and its extraction, characterized in that the means for the introduction of the gas or gas mixture and the means for the extraction of the treated material are designed and arranged so that the gas or gas mixture is introduced into the reactor at the outlet of the treated material.
- the means for extracting the gaseous mixture resulting from the treatment and the means for introducing the material to be treated are designed and arranged so that the gas mixture resulting from the treatment is extracted from the reactor at the inlet of the material to be treated.
- the concentration of active and harmful gas introduced at the outlet of the treated material is depleted by passing it through treatment cells.
- the concentration of harmful gas decreases in each cell and tends towards a zero value at the inlet of the reactor.
- the reactor defined above is characterized in that its reaction zone or enclosure consists of sealed cells in which the concentration of reactive gas is depleted by reaction with the material to be treated.
- these sealed cells (2) are designed so that the gas or gas mixture passes through them successively in the opposite direction.
- the means of transporting the material to be treated are in particular constituted by porous strips or perforated rollers or drums.
- the means of transporting the material to be treated in the sealed cells are in particular porous strips.
- the reactor according to the invention comprises means capable of creating a pressure drop facilitating the homogeneous diffusion of the reactive gas in the material to be treated.
- the invention also relates to an installation for the treatment of a solid material with a harmful reactive gas or a gaseous mixture containing such a gas, installation which comprises a reactor, an inlet and an outlet for the gaseous medium, as well as an inlet and an outlet for the material to be treated, which installation is characterized in that
- sealing enclosure is provided at its inlet and outlet devices respectively for entering and leaving the material to be treated and, on the path of this material, at the inlet and at the outlet of the reactor enclosure, of systems ensuring the sealing, and
- sealing and reactor enclosures are in communication with an assembly for extracting the gases and destroying the harmful gas to be used.
- Figure 1 attached shows an embodiment of one installation according to one invention in the case of the treatment of a fibrous mass.
- the material to be treated is transported by a belt conveyor. It passes through a sealing system which is composed of a small chamber where there are, on each side of the strip, rollers which compress the material and therefore provide one seal.
- the interior of this system can either be traversed by air so as to eliminate the gas coming from the reactor, or put under slight overpressure with respect to the reactor enclosure, so as to prevent the gas from leaving the reactor.
- the output of the treated material is done through a similar system.
- the treated product when the treated product can be submerged and the gas used allows it, at the outlet the treated material is not transported by the belt conveyor through a sealing system of the type previously described but falls into a hopper. This outlet is shown in dotted lines in FIG. 1.
- the equipment necessary for the diffusion of the gas through the material is located inside the reactor enclosure which is enclosed in the sealing enclosure.
- An extractor system makes it possible to extract the gas or the gaseous mixture from the reactor enclosure and from the sealing enclosure in order to bring it towards the destroyer or trap of harmful gas.
- This destroyer or trap can consist of a heating device in the case of ozone which thus transforms into oxygen, of a solution of soda in the case of chlorine which is thus transformed into a solution of sodium hypochlorite, of water in the case of ammonia which is thus transformed into a solution of ammonia etc.
- the sealing enclosure is provided an access door. For safety reasons, it is only possible to open this access door when the concentration of the harmful gas inside the sealing enclosure is below the tolerance limit threshold. To fix the idea, in the case of ozone this threshold is 0.1 ppm, while in the enclosure of the reactor the ozone content is of the order of 16000 ppm.
- FIG. 2 schematically represents an embodiment of the invention.
- the reaction chamber 1 is divided into cells 2, the sealing of which is obtained by means of rollers 3.
- the gas mixture is introduced at the outlet of the treated material, passes through the moving material carried by a porous strip and then penetrates in the direction reverse in the next cell.
- the resulting gas mixture depleted in reactive and harmful gas, is extracted at the inlet of the material to be treated. So that the material is not entrained by the gas flow, it is held between two porous conveyor belts (upper conveyor and lower conveyor, respectively). These two porous bands which enclose the material, move on a porous support 4 creating a pressure drop which facilitates the homogeneous diffusion of the reactive gas in this material.
- the reactor according to the invention is advantageously used to implement the process for the oxidation of a fibrous mass by a gaseous mixture containing ozone, in particular a mass of wool, described in the international patent application (PCT ) deposited in parallel and which has the title "Process of oxidation or activation of a fibrous mass by a gaseous mixture containing ozone".
- the treatment of fibers, especially wool must be homogeneous, all the fibers must be treated. Each fiber must therefore be in contact, over its entire length, with the gas flow.
- the reactor must be continuously supplied with a fibrous sheet. This feeding can take place according to different variants, provided that the treatment of the fibers is carried out in a homogeneous manner and over their entire length.
- the reactor according to the invention is a strip reactor comprising a plurality of cells (3 in FIG. 3) in its reaction zone 5.
- the gas or gas mixture used for the treatment of a veil of fibers circulates against the current of the fibrous mass. It enters the reactor under the mat of cell 3 where it crosses the fiber layer, passes in the opposite direction to cell 2 where it crosses the fiber layer, then in the reverse direction again, passes into cell 1 where it crosses the fiber layer.
- the mixture depleted in reactive gas for example O3, is led into the extraction chamber 6 where there are perforated cylinders (2 in FIG. 3) over which the fibers pass.
- These cylinders are provided with a suction system which sucks the gaseous mixture leaving the reaction zone 5 to send it to a destroyer of harmful gas 7 which is in the case of FIG. 3 a thermal destroyer of ozone, while the treated fibrous mass is collected at the outlet 8 of the extraction chamber.
- the passage of the fibrous mass over the perforated cylinders also makes it possible to increase the reaction time.
- roller systems comprising a blowing roller surmounted by a suction roller.
- this embodiment is less preferred because the fibers tend to stick to the rollers due to suction.
- Figure 4 attached shows the principle of a vertical drum reactor comprising four cells each provided with a drum.
- the reactor of FIG. 4 can be of inverted pyramidal shape, the diameters of the drums increasing from the base of the inverted pyramid upwards, that is to say from the mass inlet. fibrous at its exit and the reactive gas circulating against the current.
- the reactors described in more detail above all operate against the current and the layers of fibers are there crossed by the gas flow alternately on one and the other face, which contributes to a homogeneous treatment of said fibers.
- the seal can be ensured by the addition of a water lock at the inlet and at the outlet of the reactor.
- FIG. 5 attached illustrates the principle of the use of water locks.
- the path traveled by the carrier bands is shown diagrammatically by the broken line.
- This reactor fitted with a water lock is used when the material to be treated must be held between two strips.
- FIG 6 attached is a block diagram of a reactor suitable for the treatment of fluff materials such as washed wool.
- the reactor includes a cell and a metal apron ensuring the transport of the material.
- the principle of the entry airlock is identical to that of the Figure 5 but the bands only feed the spin press.
- the wool at the exit of this one falls on the metallic apron.
- the wool falls into a watertight chute which plunges into the water bath which collects the wool, this bath possibly being a chemical treatment bath (enzymatic bath, for example).
- FIGS. 7a and 7b are block diagrams showing a combination of reactors, with bands in FIG. 7a and with drums in FIG. 7b, which make it possible to carry out the reaction in multiple effect.
- FIG. 8 appended is the diagram of an example circuit of the oxygen / ozone mixture in a pilot installation for treating wool with ozone.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Treatment Of Fiber Materials (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0004032A FR2806931B1 (fr) | 2000-03-30 | 2000-03-30 | Installation et reacteur pour le traitement d'une matiere solide par un gaz ou un melange gazeux nocif |
FR0004032 | 2000-03-30 | ||
PCT/FR2001/000942 WO2001074481A1 (fr) | 2000-03-30 | 2001-03-28 | Reacteur le comprenant pour le traitement d'une matiere solide par un gaz ou un melange gazeux nocif |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1284814A1 true EP1284814A1 (fr) | 2003-02-26 |
Family
ID=8848661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01919592A Withdrawn EP1284814A1 (fr) | 2000-03-30 | 2001-03-28 | Reacteur le comprenant pour le traitement d'une matiere solide par un gaz ou un melange gazeux nocif |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1284814A1 (fr) |
JP (1) | JP2003528722A (fr) |
CN (1) | CN1227062C (fr) |
AU (2) | AU4666001A (fr) |
FR (1) | FR2806931B1 (fr) |
NZ (1) | NZ521592A (fr) |
WO (1) | WO2001074481A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007144326A (ja) * | 2005-11-29 | 2007-06-14 | National Institute Of Advanced Industrial & Technology | 気体処理装置 |
KR101244674B1 (ko) * | 2006-05-02 | 2013-03-25 | 다우 코닝 아일랜드 리미티드 | 웹 밀봉 장치 |
GB0712922D0 (en) * | 2007-07-03 | 2007-08-15 | Swedish Biomimetics 3000 Ltd | Solid phase reaction method |
DE102008002393A1 (de) * | 2008-06-12 | 2009-12-17 | Robert Bosch Gmbh | Vorrichtung zur Gasexposition |
CN103215775B (zh) * | 2013-04-12 | 2014-12-10 | 王林伟 | 臭氧漂白装置 |
ITUA20163921A1 (it) | 2016-05-30 | 2017-11-30 | Mayer Textilmaschf | Apparecchiatura multifunzionale per la tintura in continuo di catene di ordito per tessuti. |
CN108978088A (zh) | 2018-07-30 | 2018-12-11 | 上海森浩印染机械有限公司 | 臭氧去浮色的方法和装置 |
CN110898863B (zh) * | 2019-12-09 | 2021-07-06 | 江西世安科技发展有限公司 | 一种实验室氨水瓶干燥放置箱 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB863219A (en) * | 1957-12-20 | 1961-03-22 | Takeo Takagi | Apparatus for continuous treatment of fibers with organic gaseous materials |
US3560166A (en) * | 1968-02-05 | 1971-02-02 | Dow Chemical Co | System for treatment of substrates by a plurality of fluid reactants |
US4300367A (en) * | 1979-02-23 | 1981-11-17 | The United States Of America As Represented By The Secretary Of The Department Of Agriculture | Apparatus for treatment of fibers with ozone-steam mixtures |
FR2537014B1 (fr) * | 1982-12-06 | 1987-06-05 | Marchal Equip Auto | Reacteur pour la fixation d'un gaz sur un solide, utilisable notamment pour la chloration de lames racleuses d'essuie-glaces |
DE8703823U1 (de) * | 1987-03-13 | 1987-04-23 | Lohmann Gmbh & Co Kg, 5450 Neuwied | Vorrichtung zur kontinuierlichen Oberflächenbehandlung von bahnförmigem Kunststoffmaterial mit gasförmigem Fluor |
-
2000
- 2000-03-30 FR FR0004032A patent/FR2806931B1/fr not_active Expired - Fee Related
-
2001
- 2001-03-28 EP EP01919592A patent/EP1284814A1/fr not_active Withdrawn
- 2001-03-28 AU AU4666001A patent/AU4666001A/xx active Pending
- 2001-03-28 CN CNB018063462A patent/CN1227062C/zh not_active Expired - Fee Related
- 2001-03-28 JP JP2001572211A patent/JP2003528722A/ja active Pending
- 2001-03-28 AU AU2001246660A patent/AU2001246660B2/en not_active Ceased
- 2001-03-28 WO PCT/FR2001/000942 patent/WO2001074481A1/fr not_active Application Discontinuation
- 2001-03-28 NZ NZ521592A patent/NZ521592A/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0174481A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1227062C (zh) | 2005-11-16 |
JP2003528722A (ja) | 2003-09-30 |
FR2806931A1 (fr) | 2001-10-05 |
WO2001074481A1 (fr) | 2001-10-11 |
AU2001246660B2 (en) | 2005-03-24 |
AU4666001A (en) | 2001-10-15 |
FR2806931B1 (fr) | 2002-11-15 |
NZ521592A (en) | 2003-10-31 |
CN1416363A (zh) | 2003-05-07 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20020726 |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CHOISNARD, LUC Inventor name: LEMAN, BERNARD |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CHOISNARD, LUC Inventor name: LEMAN, BERNARD |
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17Q | First examination report despatched |
Effective date: 20050121 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20061004 |