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Woodworking plant safety knowledge

Views: 7     Author: Site Editor     Publish Time: 2018-04-08      Origin: Site

     First, the danger of fire

    1). Many combustibles, raw materials have self-ignitability and flammability

    When the circulation is good, sawdust and sawn wood tend to burn from smoldering to flame, thus igniting the dried wood. Steam drying, the temperature is easy to control and safer. However, the drying temperature is high, such as plywood production drying temperature of 180 °C, if the temperature, time, improper control, not strict cleaning system, the fragments brought into prolonged baking can occur spontaneous combustion. Dry fiber fiber production in the drying temperature of 160 - 190 °C, fiber, such as long-term heat or in case of sand, metal blocks and pipe hit Mars will spontaneously ignite or catch fire.

     2). Hot-pressing process The production of plywood and fiberboard has a hot-pressing process, and the hot-pressed plywood and fiberboard are integrated. The ignition point of the fiberboard is 190°C. When the temperature is above 160°C, its exothermic reaction is intensified, and the hot-pressing temperature is between 160-200°C. If the control is improper, the dust is susceptible to fire. After the hot-pressed plywood and fiberboard, the temperature is relatively high. If the heat-treated plywood or the fiberboard itself is not subjected to heat treatment, it is prone to sudden spontaneous combustion.

    3). Gluing, dispensing, gluing, and compounding processes Plywood Gluing, fiberboard, and glue for wood parts are urea-formaldehyde and phenolic resins, hides, and bone glues. Urea-formaldehyde resins pose a greater risk of fire; flammable liquids are used as thinners in the formulation of phenolic and urea-formaldehyde resins. Electrical sparks or open flames can easily cause fires. When preparing rubber compound, the use of furnace fur glue and bone glue, improper control of the fire, may also cause fire.

    4). Painting and painting process products In the painting process, paints, lacquers and various solvents, drying oils, etc. are used. Most of these are flammable and flammable liquids. In particular, spraying nitrocellulose paint will generate solvent vapors. , mixed with air to form an explosive mixture. During painting, static electricity is generated and accumulated. When it is discharged, it will cause the solvent vapor to burn and ignite other combustible materials. The

    Second, poor power management is also easy to cause disaster

    Improper laying of wires, overloading of lines, aging of wires, failure to protect the lines through wood piles, insulation damage, and short circuits. The installation and use of electrical equipment violates electrical codes and causes overload operation. Burning the motor and other equipment causes fire. The

    Third, the characteristics of fire

     1). Fierce combustion, rapid spread of bricks and wood structure of the wood processing plant gates, interior partitions are mostly wooden structures, span, good ventilation effect, after the fire, the fire will quickly spread and difficult to control.

    2). After the fires of the buildings that are liable to form a three-dimensional firework factory building are caught in the fire, the fires do not spread quickly in the horizontal direction. Due to the large number of flammable substances and the high combustion temperature, the flame will quickly spread vertically to the wooden beams at the roof, which is easy to form three-dimensional combustion. The

    3). Buildings are easy to collapse Factory buildings, because most of them are ordinary brick and wood structure, use wood as beams, columns, floor, once a fire, in a certain period of time, will make beams, columns, floor burning, can not control Fire, and its low fire rating, is likely to cause collapse.

    4). It is easy to cause casualties. There are more workers in the processing plant. There are fewer evacuation passages than normal, and the firefighting facilities are relatively backward. Generally, the processing plants are selected in the outskirts of the city and the urban-rural junctions. There are no fire hydrants nearby. Once a fire occurs, Fireworks quickly spread, smoke was thick, and fire was strong. Trapped people were prone to escape due to fire, and due to poor fire protection facilities, it was difficult to carry out self-rescue. Because the water-sparing fire brigade carried out fire fighting difficulties, the trapped people were easily burned. Smoke, suffocation and other dangers. The

    Fourth, wood processing companies fire safety measures

    Fire protection requirements of wood processing enterprise buildings

    1). Wood processing belongs to Category C. The fire resistance rating of its plant buildings should not be lower than Grade III. The drying room (baking room) and painting room should be one or two grades of fire resistance, preferably a separate building. If the conditions must be set, they must be separated by a firewall. The

    2). Larger wood plants should be zoned. Production areas, timber yards, administrative areas, and living areas can be separated by fences, green areas, or roads.


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