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How to choose the chemical storage cabinets
Author:Fabor Time:2016-09-29

How to choose the chemical storage cabinets (chemical storage cabinets, chemical storage cabinets)?

Today's industry faces an increasing number of hazardous chemicals, its safe storage, how to reduce the incidence of fire accidents, the protection of personal and equipment safety has become an urgent problem to be solved. Fires can ruthlessly swallow life in an instant, destroying property. 
In every analysis after a factory fire accident, it was found that most of the accidents were related to the classification, storage and disposal of flammable and hazardous chemicals, and most of the similar accidents could be avoided. It is important to correctly regulate the storage and classification of flammable and hazardous chemicals in the enterprise. 
Chemical storage cabinets for the storage of flammable liquids, flammable liquids and certain dangerous chemicals, including corrosive chemicals, but also for the storage of flammable, combustible oil and oil, pesticides and so on. 
Chemical manufacturers, laboratories, medical institutions and other places will use different types of chemicals, so the need for different safety cabinets to store. 
The following are the basic steps and guidelines for selecting a chemical storage cabinet:
First, consider what chemicals are stored? Are chemicals compatible? Choose the metal or plastic-type storage cabinet?
The first decision must be whether to choose a metal-made storage cabinet or a polyethylene plastic storage cabinet. In most cases, the choice of metal type storage cabinet should be a reasonable choice. However, if you want to store polar, corrosive acids or pesticides, you should use polyethylene storage cabinets, because the polyethylene has good resistance to chemical corrosion. 
Flammable, flammable and corrosive liquid chemicals are often stored in different colors for easy identification and identification. Yellow for flammable liquids. Fire safety cabinet Red for flammable liquids Fire safety cabinet, blue for weak corrosive flammable liquids, green Storage of pesticides and pesticides. 
1.1 The chemical substances normally stored are:
1, antifreeze
2, flammable products
3, corrosion products
4, diesel
5, desiccant
6, flammable liquids
7, oil (gasoline, etc.)
8, hazardous waste
9, oil and other hydrocarbons
10, medical infectious waste
11, oil
12. An oxidizing agent
13, paint
14. Insecticides
15, oil
16, solid waste
17. Solvent
18, used oil
19. A reactive substance
1.2 Compatibility between chemicals
Sodium hydroxide with hydrochloric acid or nitrate; Perchloric acid and ethanol; Aluminum powder and ammonium persulfate; Chlorate and ammonium nitrate (such as ammonium nitrate); Ammonium sulfate with ammonia; , Antimony sulfide or sulfur; Chromic anhydride and ethanol, sulfuric acid or sulfur; Nitric acid and acetic anhydride; Ammonium nitrate and zinc powder; Barium thiocyanate and sodium nitrate; Nitric acid and phthalic or hydrogen iodide; Peroxide and magnesium, zinc Or aluminum; Chlorophenols, perchlorates and sulfuric acid; Yellow phosphorus, also phosphorus and nitric acid, nitrate or chlorate; Mercury oxide and sulfur; Magnesium and phosphate; Oxygen and organic or oil; Fuming nitric acid And hydrogen sulfide; acetone and hydrogen peroxide; benzene and perchloric acid; hydrogen and chlorine or fluorine gas; ammonia and chlorine or hydrogen chloride, hydrogen sulfide; chlorine and acetylene or ethylene, etc. must be stored separately. 
Metal sodium and nitrocellulose, acetone and calcium carbide, red phosphorus and calcium carbide, ethanol and benzene, sulfur and H blowing agent fire fighting methods of different chemical dangerous goods can not be stored with the storage cabinet. 
1.3 Other types of chemical storage cabinets
Anti-Leak Chemical Tank Storage Cabinets, Leak-Proof Chemicals Oil Tanks Storage Tanks and Leak-Proof Chemicals Oil Tank Storage Cabinets can store 2, 4 and 8 standard 55-gallon drums, since all are polyethylene Materials, the whole system has good chemical resistance, very suitable for storage of large-capacity corrosive or general chemical liquids, especially for outdoor storage. Anti-Leak Chemical Oil Tanks Storage Tanks and Leak-Proof Chemicals Oil Tanks Storage cabinets have built-in vents. All storage cabinets can be operated and moved by forklift. In fact, they are a moving warehouse of chemicals or oil barrels, placed in the right place to meet the strict requirements of consumption. 
Second, consider the type and volume of chemical storage containers to determine the correct number and size of storage tanks
Is your storage container a 55 gallon drum, an IBC container, a 1-5 gallon jar, a gas cylinder, or something else? You should also calculate how much chemical you need to store? What is the amount of each chemical? This way you can calculate that you only need a small cabinet or a relatively large cabinet, or a few large cabinets? 
Is the treatment done with a forklift, pallet truck, or by hand or by other means? These are the number of storage cabinet you think, the size of the premise.
Third, determine the correct type of storage cabinet
There are many types of flammable liquid storage cabinets. You have to consider, you need to put on the floor of the conventional rectangular, or installed on the wall, or on the counter below the cabinet? Or, you have to consider, you need a special storage of paint and ink cabinet? Or a cabinet that stores corrosive acids? Is it stored indoors or outdoors? Closing the way the handle type
Fourth, the study of product features storage cabinet, flexible use, to see if they meet their needs
Your cabinet should have all the correct safety features, such as double-wall and double-layer doors or other forms of doors, adjustable shelves, corrosion-resistant coatings, labels, and adequate leakage volume to prevent possible leaks. Is to meet the 2-hour fire rating, or 4-hour fire rating? Is not installed explosion-proof air conditioning or mandatory exhaust? How about self-locking?
Fifth, the final inspection storage cabinet to meet the standards, fire rating, third-party certification and durability
You need to purchase the cabinets you need from a suitable, certified, well-established supplier to ensure that flammable liquid storage complies with all standards and certifications that must be met, such as UL, OSHA, and FM. All of our cabinets meet OSHA, EPA, DOT and NFPA and are fully FM and UL approved. Double fireproof steel plate design, the middle 38 mm insulation, automatic three-point linkage locking device, completely isolated from external flames contact, is to meet the most basic conditions of the standard. 
5.1 The hazard level of a stored chemical is defined as:
IA level: a flash point of less than 23C, the boiling point of less than 38C
IB grade: Flash point less than 23C, boiling point greater than 38C
IC grade: flash point at 23C or more than 23C, but less than 38C
Class II: Flash point at 38C or above 38C but less than 60C
OSHA 29 CFR 1910.106 US Occupational Safety and Health Administration Standard
1, the maximum capacity of the storage cabinet, I or II-class liquid does not exceed 60 gallons, III-class liquid does not exceed 120 gallons, can be stored in the storage cabinet
Flame Retardancy of Storage Cabinets Cabinets must be designed and fabricated to meet internal temperatures not exceeding 325 ° F. The test conditions are the standard time-temperature curves specified in the NFPA 251-1969 Standard for Building and Materials Ignition Experiments. In the fire test, all joints and joints must be kept closed and the door must be securely closed. Storage cabinets must be clearly marked "flammable - non-pyrotechnic
3, Metal cabinets constructed in the following manner shall be considered as conforming to the standard: the bottom, top, doors and sides of the cabinet shall be at least 18 gauge steel plates and have a two-layer structure of 1-1 / 2 inches of voids. Then riveting, welding can be as effective as other methods of fastening. The goalkeeper is equipped with a three-point lock, the threshold should be at least 2 inches above the bottom of the cabinet
4. Cabinets constructed in the following manner shall be deemed to comply with the standards: the bottom, the top and the side shall be made of at least one inch thick permissible plywood, which will not collapse or crack in the case of combustion. All should then be joined and nailed at both ends with flat-headed wood screws. Where more than one door is used, there shall be a lap joint of not less than 1 inch thick. The mounting hinge does not lose its support in the event of a loose bolt in the combustion test or a burning of the surrounding material of the screw. 
NFPA Code 3.0 - 4.3.3 National Fire Protection Association Code
1, I, II and IIIA liquids in a single storage cabinet should not exceed 120 gallons
2. The sum of the volumes of liquids I, II and IIIA stored in a group of storage tanks shall not exceed the maximum permissible flammable and combustible quantity of flammable chemicals stored within the maximum permissible unit area
3, in accordance with the provisions of, not necessarily for the purpose of fire protection, storage cabinets must ventilation ventilation
4, if not exhaust, the cabinet exhaust port need to be sealed with a lid
5, if there is any reason to need exhaust, storage cabinet exhaust must be oriented outdoors, and will not produce any litigation

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