Fire prevention measures for the technical interla

Fire prevention measures for the technical interlayer in the plant of cotton textile enterprises

the technical interlayer is generally used to arrange special pipelines and facilities. At present, in the plant of many enterprises, the company has been widely used under the guidance of science and technology, including some cotton textile (including wool textile and hemp textile, the same below), especially the new, reconstructed and expanded cotton textile enterprises since the late 1970s, It has not only changed the original plant form and structure, but also developed to a higher place. The sandwich technology is widely used in buildings. By using the hanging and leveling form of the building space, it allows the air supply pipe that controls the temperature and humidity of the plant and workshop, the return air pipe that saves energy and uses the indoor temperature, and the dust collection pipe that filters and removes impurities, Including wires for indoor production lighting "We work closely with Philips technology on this amazing new product, and the auxiliary facilities such as cables are covered in the interlayer, which not only improves the production conditions, but also beautifies the indoor environment used in the manufacture of electronic universal laboratory machines.

these functions of the technical interlayer are undeniable, but the interlayer is also a narrow and crowded fire dead corner that is easy to be ignored and forgotten. In particular, it is called safety and fire protection The cotton textile enterprises in "huhukou" are more latent, sudden, confusing and harmful. In recent years, fires originating in the technical mezzanine have occurred from time to time, and even fires originating outside the mezzanine have often spread and expanded rapidly through the technical mezzanine, which is surprising. What are the precautions for the use and installation of the plastic tensile testing machine in a cotton mill in Shanghai due to sparks from the electrical contacts of the cotton cleaning and reeling machine? Follow the steps of our technicians. Let's have a look. The fire broke out, and the fireworks spread rapidly after entering the technical interlayer through the air suction pipe. Due to the continuous smoke on all sides and the unclear source of fire, it brought great difficulties to the firefighters who came to put out the fire. Finally, they had to ask the special service squadron for reinforcement and smoke exhaust through the broken wall to put out the fire

fire hazards and characteristics of technical mezzanine

for the fire hazards and characteristics of the technical mezzanine in the workshop of cotton textile enterprises, combined with many years of experience in fire protection in cotton textile enterprises, I mainly focus on the following six aspects

    1. Cotton dust accumulates and it is difficult to clean up

the gags and cotton dust produced in the production process of cotton textile enterprises are continuously poured into the technical interlayer from the holes and gaps of the ceiling with the air flow and temperature in the workshop. Due to the light load, dark light, low height and crowded space of the interlayer, the staff cannot enter it for cleaning. Over time, gags and cotton dust will accumulate more and more in the interlayer. Because these cotton fibers have the characteristics of flammability, spontaneous combustion and hidden combustion, coupled with the temperature and humidity control in the car room, it is conducive to the growth and reproduction of microorganisms, so that the cotton fibers are easy to mildew, rancidity, decomposition and oxidation. At this time, once you encounter Mars, it will burn rapidly and become a piece

    2. Most of the ceiling materials are flammable

the initial ceiling materials of the technical interlayer are generally calcium plastic board, silencing board, plywood, particleboard, etc. these boards are light and beautiful. However, most of them are flammable and combustible substances, which will not only burn, but also emit toxic and harmful gases, posing a serious threat to the rescuers

    3. Lines are densely distributed and prone to accidents

a large number of wires and cables are generally laid in the technical interlayer, but some enterprises do not carry out flame-retardant threading treatment as required, nor do they carry out necessary straightening and arrangement when laying wires and cables. A large number of fluorescent lamps are embedded in the ceiling, and all ballasts and connectors are placed in the interlayer, and some unfixed and sporadic power lines are also laid next to them. If these wires are overloaded, short circuited, and the ballast is aged or heated, it is easy to cause fire accidents

    4. Air ducts support combustion and spread rapidly

some of the air ducts and air ducts laid in the interlayer are made of plastic materials such as wood and glass fiber reinforced plastics, which are easy to burn in case of fire. Moreover, these air ducts and ducts, which form an interconnected system inside, can continuously ventilate and supplement oxygen at a speed of 2 ~ 3M per second. At the same time, under the convection effect of the fire, it will increase the intensity of the fire, and can also send the kindling in the smoke to other parts and floors of the workshop, rapidly expanding the combustion area

    5. The combustion is concealed and the opportunity is delayed

the technical interlayer is a relatively closed space. After the fire, the temperature rises quickly, the smoke is thick, and the line of sight is blocked by the wall. Once the fire breaks out, it is highly concealed and not easy to be found. When the fire spread around along the inflammables, and the smoke sprang out of the holes and cracks of the ceiling to the workshop, the fire quickly turned into a violent burning stage. At this time, the fire was put out, which not only delayed the best time to put out the fire, but also made it difficult for the rescuers to accurately judge the fire source. In addition, sometimes, although the fire on the surface of the interlayer is extinguished, the flames "hiding" in the corners of the interlayer will burn secretly, and then form a fire again

    6. There is no place to stand, and it is difficult to rescue

the technical interlayer generally adopts the aluminum light keel frame, which has light load and narrow interior. In case of a fire accident, the firefighters have no place to stand, and it is difficult to choose a solid commanding point, break the top and find the source to control the fire. On the contrary, it is also easy to cause casualties