MindMap Gallery 24.1.17 Fire hazard classification of production
First-class fire protection engineer, the fire hazard classification of production is based on the state, quantity and characteristics of substances in the production process. The fire hazard classification of production varies according to different standards.
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This is a mind map about bacteria, and its main contents include: overview, morphology, types, structure, reproduction, distribution, application, and expansion. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about plant asexual reproduction, and its main contents include: concept, spore reproduction, vegetative reproduction, tissue culture, and buds. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about the reproductive development of animals, and its main contents include: insects, frogs, birds, sexual reproduction, and asexual reproduction. The summary is comprehensive and meticulous, suitable as review materials.
Fire hazard classification for production
1. memory skills
1.1. The original text in the book is in the notes
1.2. It is basically the same as the stored classification. The differences are reflected in the green boxes and need to be remembered separately.
1.3. the difference
1.3.1.
1.4. Special case
1.4.1.
2. Classification
2.1. Category A
2.1.1. Liquids with flash point <28°C
(Pharmaceuticals and pesticides) Sulfonation method saccharin factory; liquor liquid method brewing workshop, alcohol distillation tower, blending workshop, filling workshop, and wine pump room with an alcohol content of 38 degrees and above; brandy distillation workshop, blending workshop, and filling workshop , wine pump room
2.1.2. Gases with lower explosion limit <10%
Electrolyzed water or electrolyzed salt plant, cyclohexanone plant
2.1.3. Can decompose by itself at room temperature or oxygenate in the air A substance that can cause rapid spontaneous combustion or explosion
Celluloid Factory
2.1.4. Under the influence of water or water vapor in the air at room temperature, Substances that can produce flammable gases and cause combustion or explosion
2.1.5. A strong oxidant that can easily cause combustion or explosion when exposed to acid, heat, impact, friction, catalysis, or flammable inorganic substances such as organic matter or sulfur.
2.1.6. Substances that can cause combustion or explosion when impacted, rubbed, or in contact with oxidants or organic matter
2.1.7. Production in closed equipment where the operating temperature is not less than the spontaneous ignition point of the substance itself
2.2. Category B
2.2.1. Liquids with flash point ≥28℃ to <60℃
Cresol plant, chloropropanol plant, epichlorohydrin plant
2.2.2. Gases with lower explosion limit ≥10%
2.2.3. Oxidants not belonging to Category A
2.2.4. Flammable solids not belonging to Class A
Sulfur recovery plant
2.2.5. combustion-supporting gas
Oxygen station, air separation plant
2.2.6. Floating dust and fibers that can form explosive mixtures with air, and liquid droplets with a flash point ≥60°C
Aluminum powder or magnesium powder plant, metal product polishing area, coal pulverized plant, flour mill grinding area, activated carbon manufacturing and regeneration plant, grain silo working tower, flax mill dust collector and filter room
2.3. Category C
2.3.1. Liquids with flash point ≥60℃
Benzoic acid factory, acetophenone factory
2.3.2. flammable solid
2.3.3.
2.4. Category D
2.4.1. Production that processes non-combustible substances and often produces strong radiant heat, sparks or flames at high temperatures or in a molten state
2.4.2. Various productions that use gases, liquids, and solids as fuel or burn gases and liquids for other purposes
2.4.3. The production of using or processing refractory substances at room temperature
2.5. Category E
2.5.1. Production of non-combustible substances used or processed at room temperature
3. When used or produced in the production process, flammable, The amount of combustible material is too small to constitute an explosion When there is a risk of explosion or fire, it can be determined according to the actual situation;
3.1.
4. Real questions
4.1. 2018
4.2. 2020