Explosion-proof forklift application knowledges

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 Explosion-proof forklift application knowledge
A: Sources
    Diesel and battery vehicles transporting flammable su bstances may be the cause of the explosion, which is

not a hypothetical, but a fact. Many of the explosion and fire occurred in the petroleum, chemical, paint,

pharmaceutical, industry,forklift bucket attachment
its causes have been identified for non-explosion-proof vehicles. Without the

protection of ordinary vehicles caused by the accidental explosion has become an indisputable fact.
B: Application of places
    The explosion-proof vehicles containing explosive mixtures are widely used in petroleum, chemical,

pharmaceutical, textile, military, paints, pigments, coal and other industrial sectors and ports, railways,

freight yards, warehouses and other places for loading and unloading, stacking and handling operations.
â—† production, concentration, liquefaction, storage and transportation of flammable gases;
â—† production, filling, release, used skid steer buckets
storage and transportation of flammable liquid and these liquid handling and

cleaning the place of the workpiece;
â—† manufacturing and processing rubber, plastic place;
â—† processing, crushing and storage of explosive dust, flammable conductive dust, combustible, non-conductive

dust, combustible fibers in place. Such as metals, pharmaceuticals, resins, plastics plant, Ordnance Factory.

C: the level of danger
Hazardous areas according to an explosive mixture frequency, duration and degree of risk is divided into

several districts. Explosive gas hazardous area is divided into Zone 0, Zone 1 and Zone 2.
Zone 0: the explosive gas mixture continuously or for long periods of places.
Zone 1: may occur in the normal operation of the explosive gas mixture.
Zone 2: is likely to arise in the normal operation of the explosive gas mixture, even if there is also the

occasional short-term existence of the place.
Explosive dust hazardous areas are divided into Area 10 and Area 11.
Area 10: the explosive dust mixture continuous or long-standing place.
Area 11: occasionally accumulates dust raised while the short-term place of explosive dust mixture.
Explosion level
Explosive gas mixture in the standard test conditions, according to their maximum experimental sa fe gap or

minimum igniting current score for the IIA, IIB, IIC three. Booster capability of Class IIC (such as water

gas, acetylene), IIB (such as civilian gas, ethylene, dimethyl ether), followed by booster capability minimum

for Category IIA (such as ethane, propane, toluene, gasoline).
Explosive dust (including fiber) divided into four categories according to their physical properties:
An explosive dust: such as aluminum, zinc, aspirin and other dust.
Two, conductive combustible dust: such as graphite, coke, coal dust.
Three, the flammability non-conductive dust: dust, such as polyethylene, dyes and other.
, Flammable fiber: such as hemp fibers, wool fibers, etc.
Temperature groups
Explosive gas and dust temperature groups according to their ignition temperature were divided into six groups

and three groups.
D: The vehicle\\ s basic protective measures

The forklift basic pro tective measures can be divided into six:
A diesel engine air intake, exhaust system, install the flame resistance and exhaust spark eliminator.
Second, the control of the vehicle surface temperature and diesel engine exhaust gas temperature, it is not

higher than the value of the temperature groups of explosion-proof forklift.
Third, the forklift starter motors, motors, batteries, switches and meters and other electrical components to

take protective measures to eliminate or control the arc and spark.
Fourth, the use of antistatic belts, tires, non-metal fan and fork body to take the anti-collision sparks

measures.
Five independent automation system over-temperature, speeding and leakage protection.
And effective monitoring of the concentration of the explosive mixture in the operating region.
F: vehicle why the explosion-proof?
    The for klift is the most widely used material handling, processing and storage places of flammable gases,

vapors and dust, including raw materials transported to processing sites, and the finished product is

transported to storage sites, as well as dangerous goods are loaded into the vehicle. In these processes, and

occasionally some operating accidents, such as goods or accidentally fell from the fork to puncture the

forklift hit the stacked goods, piping or other equipment caused by flammable substances leakage, evaporation

and proliferation. In addition, the normal processing of flammable materials (such as filling of materials,

emissions, crushing), the leakage, evaporation, and diffusion is inevitable. Distributed flammable substances

mixed with air form explosive mixtures when the concentration reaches the explosive limit, and met the right

ignition energy, that will cause a fire o r explosion.