How to load and unload asphalt? ? ? ? ?
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Who knows the simplest way to load and unload asphalt? The asphalt here is put into those nylon bags, and then a forklift is used to load it into the bags; it’s very time-consuming and troublesome. Does anyone have a better method? And also, how to protect the workers? ? I’ve used protective glasses before, as well as gas masks, but they weren’t very effective. The workers’ eyes and complexions changed; I hope someone can give me some answers – it’s an emergency! ! !
No one is coming to help? ? ? ? ? ? ? ? ? ? ? ? ? :Q
In larger quantities, it is stored in asphalt tankers or oil drums; when heated, the asphalt becomes liquid, and it can then be transported to wherever it is needed or heated on-site for use； Asphalt contains benzo-apyrene, a highly carcinogenic substance; protective goggles and gas masks are essential. It is necessary to use dust masks as well as select appropriate filter cartridges for gas masks in order to avoid inhaling asphalt vapors, as the toxic substances are primarily present in the gas phase ； Last edited by Chengbei Zhibei on 2009-2-23 07:18]
1. High-grade road asphalts such as 60#, 70#, 90# grades, or other liquid road asphalts used for paving, are generally transported at around 150 degrees Celsius. The transportation range is 500 kilometers in the northern regions; for transportation, insulated tank trucks with steam heating capabilities are used to raise the temperature again during transit. . . 2. Modified asphalts such as SBS and SBR are generally loaded and unloaded in the same way as liquid asphalt. . . 3. Building asphalt grades 10#, 20# and waterproof asphalt, being solids, can be transported in solid form, just like automobile, railway or ship wheels made of carbon steel. . . Haha. . . :lol
Our factory’s asphalt tanks are heated using heat transfer oil, and the asphalt is loaded directly into vehicles. If it comes from an asphalt molding machine, it is loaded onto vehicles using a crane; there is no situation like what you mentioned. The most traditional method is to place the asphalt on the ground once it is ready, cover it with wire, cut it into pieces using that wire when it’s almost cooled down, and then load it manually onto vehicles; however, this method is rarely used these days.
To prevent direct contact between asphalt and the human body, in addition to mechanical handling, proper packaging of the asphalt should also be ensured. Based on several years of experience, it is better to use iron drums for liquid asphalt, and bamboo or wicker baskets lined with kraft paper (the amount of kraft paper can be determined depending on the distance of transportation, the hardness of the asphalt, and weather conditions) or double-layer grass bags for solid asphalt. Of course, local materials can be used to create other types of packaging, such as *bags and straw bags, but the use of new packaging must be approved by the labor department. Due to the lower toxicity of petroleum asphalt, the packaging mentioned above can be simplified. The packaging of asphalt should be complete and secure to prevent the scattering of asphalt powder. If there is a small amount of inadequate packaging resulting in powder leakage, water can be sprayed on the surface of the asphalt to moisten it before handling. In this way, the dispersion of asphalt dust can also be eliminated.
Do you mean where to install it from and where to? From the tank to the vehicle, heating is achieved using a pump; the fuel tanker must be equipped with a heating device, otherwise it will be troublesome if the fuel freezes during unloading.
I have a question for you: what are the main components of asphalt? And what are its physical properties?