Unloading at Site

Transport requirements from the local port to the plant site (cost of unloading from the ship, cost of reloading on the rail/road containers, transport to site, unloading at site, etc.). 

Inspection of all equipment after unloading at site in the presence of vendor s representative. 

Namral gas is available at a pressure from oil wells, and its supply can be obtained at point of consumption by pipelines (with appropriate safety precautions and metering system). This method of obtaining fuel can save efforts and the energy required for transportation, unloading at site and then pumping to points of use in the case when fuel is obtained as furnace oil filled in tanker loads. 

Quickly finalise the technical and commercial conditions. This should be done after considering the landed cost of the items at premises after taking into account the statutory duties (if items are to be imported from another country) and any other costs involved for them (including unloading at site and storage). Take suitable steps to minimise the time required for loading and transport of such materials in suitable containers. 

It is difficult or dangerous to pack, load, transport from supplier, and unload at site if such items are being procured from outside. 

JIT is followed when a large inventory can block a lot of working capital. Procurement of various items is planned and executed in such a manner that they arrive at point of application just when they are to be used/fed into the system. This needs very accurate estimation of the rates of consumption time required for procurement (testing samples at vendor s works, loading, transportation, and unloading at site) is necessary for the success of this arrangement. However, a reasonable stock of the spares shall be available in the stores as matter of abundant precaution. 

The pressure dependence of the Raman-active vibron modes (Figs. 11(a) and 11(b)) was studied on unloading at 300 K in new phases. 1-N2 exhibits typical behavior for such molecular crystals branching of vibrational modes and increasing of separation between them with pressure due to increasing intermolecular interactions. All of the vibrational modes originate from the same center, which is close to the frequency of the V2 disk-like molecules in E-N2. Thus, the structure of the i phase is characterized by the presence of just one type of site symmetry for the molecules and the large number of vibrational modes arises from a unit... 

To properly model the RTC handling processes at the sites, the time necessary to un-load/load the RTCs has to be considered. The total processing time for RTC handling is summarized in parameter which is the number of basic periods required to make an RTC available for transport (after loading or unloading). I.e. if RTCs are unload-ed/loaded, tj is the minimum time span an RTC has to spend at site i. In most cases, a turnover time span of one work shift, i.e. one basic period, is assumed before an RTC... 

Equations (3.36) and (3.37) represent stock balances for loaded and unloaded RTCs. Both stocks are interconnected by RTC transfer flows rz and rz. E.g. unloading of RTCs in period t at site i immediately reduces the number of loaded RTCs. However, t periods are required for unloading and shunting before these RTCs can be handled as empty RTCs again. Both stocks are replenished by incoming RTCs from other sites... 

Certain materials like sodium sulphate and lime powder are packed in small hags and conveyed hy truckloads/railway. They can be unloaded manually or carried in hand carts at site if small amounts are required for use. 

If the materials are packed in big bags, they need unloading machines, portable hoists at site for taking out from tracks or railway wagons. 

Receiving fuel supplies by special tankers, weighbridge at site, and unloading facilities for filling into main storage tanks. 

Logistics which includes packing and loading, transport by railway, ships, road tankers (or through direct pipelines in case of chemicals to be procured from neighbouring units), unloading, and storing at site. 

If the driver that is loading or unloading at a rig site is an outside driver (employed by another company), you will need to make sure the driver is familiar with the general safety precautions on the site (the site traffic pattern, required PPE, H2S and other alarm, fire procedures, evacuation orders and alarms, etc.). You will also want to make sure your competent person watches the driver closely during the loading and unloading to make sure the driver does not put himself/herself or rig hands in danger. 

In recent years there has been a growing awareness of the need to plan for safe moving traffic on sites. The basic principle is to keep the movements of vehicles and people physically apart — this may require barriers and designated routes on site. Also, pedestrian crossing points will have to be established, with adequate lighting. So plan for safe access to and around the site. How will vehicles be kept clear of pedestrians, especially at site entrances and exits, loading and unloading areas and anywhere where the drivers vision may be restricted ... 

Unloading at the storage site would not appear to require any special facilities, apart from a respect of procedures and the need to provide equipment for decontamination of the containers and the transport vehicle. 

Another auxiliaiy unloading system that has proven to be very effective and efficient involves the use of moveable, hydraulically operated truck dumps located at the disposal site. Operationally, the trailer is backed up onto one of the tipping ramps, with or without its tractor. The back of the trailer is opened, and the unit is then tilted upward until the wastes fall out by gravity. The time required for the entire unloading operation typically is about 5 min per trip. 

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