• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1429580 Reducing pollution in making resin-fibre mats SAINT GOBAIN INDUSTRIES 3 Oct 1974 [10 Oct 1973] 42998/74 Heading D1R In the production of a bonded fibre mat 23 pollution is reduced by recycling waste products by repeated passage through the mat, washing the waste products, purifying part of the waste at each cycle and transferring part of the heat resulting from fibre formation to a fluid which is then cooled. Glass fibres are produced by introducing molten material 102 into a perforated rotor and drawn downwards by an annular array of high speed hot gas jets. Alternatively the fibres are extruded from spinneret (112, Fig. 13, not shown), by directing a molten glass net (121, Fig. 14, n.s.) upon high speed rotors (123, 124) or by the action of hot gas jets upon glass rods or filaments (115, Fig. 12, n.s.). The drawn fibres are sucked onto perforated belt 15 by blower 19, distribution being achieved by oscillating nozzle 14 or by air pair of compressed air nozzles (14, Fig. 13, n.s.). Binder is applied by jets 13, preferably as an aqueous solution or dispersion of phenol formaldehyde resin, urea-formaldehyde resin, oxidised linseed oil or bitumen. Cooling water is supplied by sprays 50 situated above or below binder sprays 13 and/or below perforated belt 15 to remove the heat produced by fibre formation. (Little or no atmospheric air is drawn in for cooling, c.f. the prior art, Fig. 1, n.s.). The gases drawn through mat 23 are washed by sprays 45, by bubbling through wales in jar (48, Fig. 12, n.s.) or by counter-current contact with thin films of water flowing over dividing walls (46, Fig. 4, n.s.). Heat is also removed. Chamber 16 below the perforated belt may increase in cross section to reduce the velocity of the gas and thus collect particles of solid waste. A cyclonic or electrostatic precipitator 18 proceeds blower 19. Most of the partly purified gas is returned by duct 34 to mat forming chamber 22 and again passes through mat 23. 5% to 10% of the gas is taken to burner 39 where remaining organic impurities are connected to carbon dioxide and water and released to the atmosphere. Duct 35 leading to burner 39 may be situated in chamber 22 (Fig. 4, n.s.). Noise is reduced by absorbing panels 99, 100. The washing water collects at sump 103 and is passed through vibratory mesh filter 51 to remove fibres and insoluble binder. The filtered water is cooled by circulation through heat exchanger 105. Cooled filtered water is supplied via pump 55 to cooling sprays 50, washing means 45 binder preparation 108 and water treatment station 109. As illustrated station 109 comprises a pump 77 which raises the pressure to 16 bar, a heat exchanger 83 which raises the pressure to 80‹C, a mixer 78 in which superheated steam raises the water to 200‹C and a reactor 82 in which the treated water is kept for 2 to 4 minutes. The treated water is cooled in the heat exchanger, decompressed, centrifuged at 110 to remove binder insolubilised by the heat and returned to tank 52. In other embodiments heat is applied to the interior of a treatment tank by steam or an immersed burner or electric arc. In other embodiments the dissolved binder is removed by flocculation or bacterial action. The solid waste removed by filter 51 and centrifuge 110 is heated to 600 to 700‹C to burn organic material and frit the fibres into low volume plates which are returned to the fibre production station, or heated to 1000‹C to melt the waste fibres.
    公开号:SU843766A3
    申请号:SU742068848
    申请日:1974-10-09
    公开日:1981-06-30
    发明作者:Левек Марсель；Барт Мари-Пьер；А.Баттижелли Жан
    申请人:Сэн Гобен Эндюстри (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to technology for producing fibrillary fibers from glass, in particular, to a method of cleaning out flue gas. A method for cleaning flue gas in the production of fibrillar fibers from glass, treating it with water and burning (100% gas) 1 is known. the way the exhaust gas is completely combusted,. which leads to pollution of the environment and the method of cleaning is not a matter of purpose. The purpose of the invention is to reduce the environmental pollution and increase the efficiency of the process. This goal is achieved by the fact that in the process of purification of exhaust gas in the production of fibrillar fibers by treating it with water and burning water from the gas treated with WATER, at 30-45 ° C, moisture is removed, then 310% of the gas is burned (at 600-700 and the rest of the gas is returned to production. A gas containing 0.006-0.025% by weight of fibers and 0.01-0.03% by weight of a binder based on organic compounds is subjected to purification ... Treatment with water is carried out at 30-45 ° and combustion at 600–700 ° C. A pp. and me r 1. 35,000 exhaust gas in the production of fibrillar vsel A cone containing 0.013% by weight of fibers and 0.016% by weight of binder based on phenol-formaldehyde resin and urea is treated with 70 water, followed by removal of the remaining moisture using a cyclone or electrostatic device. A gas containing another 80 mg / nm is obtained therefore, 5% of the gas, i.e., 1750 nmH / h, is fed to combustion at 700 ° C, and the rest of the gas is returned to production. Recycling 95% of the gas does not adversely affect the production process of the fibrillar fibers. Example 2. Example 1 is repeated, with the difference that 3% of the gas is fed to the combustion. At the same time, recycling of 97% of the gas does not affect the negatively the production process of the fibrillar fibers. Example 3. Example 1 is repeated, with the difference that 10% of the gas is fed to the combustion. However, the recycling of 90% of the gas does not adversely affect the production process of the fibrillar fibers.
    As can be seen from the examples, the exhaust gas has a sufficient degree of purification, and due to the recirculation of 9097% of the exhaust gas (returning it to production), the environment is reduced because of the burning of only 3-10% of the gas which also makes the method econol. Invention Formula
    Exhaust gas cleaning method in fibrillary fiber production
    from glass by treating it and burning it, characterized in that, in order to reduce environmental pollution and improve the economy of the method, the gas that has undergone water treatment removes the remaining moisture at 30-45 ° C, and then burns 3-10% of the gas while 600-700 C, and the rest of the gas returned to production,
    0 Sources of information
    taken into account during the examination 1. U.S. Patent No. 3,528,220, Cl. 5.J3-9, published. 1964 (prototype).
    权利要求:
    Claims (1)
    [1]
    Claim
    A method for purifying exhaust gas in the production of fibrillar fibers from glass by treating it with water and burning, characterized in that, in order to reduce environmental pollution and increase the efficiency of the method, the remaining moisture is removed from the gas treated with water at 30-45¾ ', then burned 3-10% of gas at 600-700 ° C, and the remaining amount of gas is returned to production.
    10 Sources of information taken into account in the examination
    1. US patent No. 3528220, CL. 55.8-9, published. 1964 (prototype).
    Compiled by L. Reutova
    类似技术:
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    同族专利:
    公开号 | 公开日
    ATA810274A|1981-04-15|
    DE2448418C2|1986-06-26|
    FR2247346B1|1978-02-17|
    BR7408419A|1975-11-04|
    HU172876B|1978-12-28|
    DK149647B|1986-08-25|
    SE409199B|1979-08-06|
    IL45755D0|1974-11-29|
    CH610955A5|1979-05-15|
    NL7412646A|1975-04-14|
    IE41882B1|1980-04-23|
    FR2247346A1|1975-05-09|
    NO743568L|1975-05-05|
    LU71077A1|1975-06-24|
    NL172471C|1983-09-01|
    BE820942A|1975-04-10|
    CH597287A5|1978-03-31|
    AT364740B|1981-11-10|
    AR209427A1|1977-04-29|
    IT1022709B|1978-04-20|
    ZA746264B|1975-10-29|
    PL91767B1|1977-03-31|
    IE41882L|1975-04-10|
    TR18256A|1976-11-10|
    JPS5843339B2|1983-09-26|
    FI58114B|1980-08-29|
    IL45755A|1978-06-15|
    NO770918L|1975-04-11|
    HU175296B|1980-06-28|
    DE2448418A1|1975-05-07|
    SE7412711L|1975-04-11|
    AU7405974A|1976-04-15|
    FI58114C|1980-12-10|
    DK528274A|1975-06-30|
    FI291274A|1975-04-11|
    CA1056568A|1979-06-19|
    GB1429580A|1976-03-24|
    CA1069645A|1980-01-08|
    JPS5076328A|1975-06-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1594689A1|1966-06-02|1970-03-26|Wilhelm Stark|Method and device for cleaning exhaust gases|
    GB1248393A|1967-08-21|1971-09-29|Fibreglass Ltd|Improvements in the avoidance of air pollution in the manufacture of glass fibre products|
    GB1421346A|1971-12-20|1976-01-14|Agk Ind Inc|Moulding an article|
    DE2163183C3|1971-12-20|1975-11-13|Krautzberger & Co, 6228 Eltville|Device for suctioning off spray mist|US4050367A|1976-05-06|1977-09-27|Marion L. Eakes Co.|Ventilating system for industrial machines|
    JPS581052B2|1976-11-09|1983-01-10|Mitsui Shipbuilding Eng|
    FR2460360B1|1979-07-02|1983-08-19|Flaekt Ind|
    FR2503134B1|1981-04-02|1985-06-14|Saint Gobain Isover|WASHING METHOD AND DEVICE USED IN THE MANUFACTURE OF MINERAL FIBER MATTRESSES|
    DE4141659A1|1991-12-17|1993-06-24|Gruenzweig & Hartmann|METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF MINERAL WOOL FLEECE|
    AT400712B|1993-05-24|1996-03-25|Heraklith Baustoffe Ag|METHOD AND DEVICE FOR AIR DIRECTION ON SPINNING MACHINES|
    CN103357231A|2012-04-01|2013-10-23|昆山市创新科技检测仪器有限公司|Air purification device and air purification treatment method|
    CN102798128A|2012-09-07|2012-11-28|无锡锡通工程机械有限公司|Asphalt flue gas treatment device|
    ITMI20122000A1|2012-11-26|2014-05-27|Fisi Fibre Sint Spa|METHOD FOR THE REALIZATION OF A REDUCED THICKNESS PADDING AND WITH FIBER STABILIZED, PARTICULARLY FOR THE USE IN GARMENTS, CLOTHES AND SLEEPING BAGS.|
    CN111905528A|2020-08-24|2020-11-10|王莉|Glass substrate kiln exhaust treatment device easy to operate|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7336169A|FR2247346B1|1973-10-10|1973-10-10|
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