BULK COAL HANDLING EQUIPMENT

26 November 2021
L'Association de production "TEHNOROS" produit une large gamme d'équipements de transbordement du charbon, à la fois cyclique et principe de fonctionnement continu:
    • Grab and container (for handling bulk materials in specialized containers) portal cranes;
    • Grab bridge cranes;
    • Grab and container (for handling bulk materials in specialized containers) gantry cranes;
    • Scraper reclaimers and bucket chain reclaimers, bridge scraper reclaimers for open and closed warehouses, also for material blending;
    • Rotary bucket bridge and boom reclaimers - for taking material at an open or closed warehouse, also for blending material;
    • Car dumpers of all possible configurations, including an innovative product - a traverse-car dumper.
    • Ship loaders– for sea vessels up to 65,000 DWT and shuttles serving roadside transshipment, having a small boom reach and a capacity up to 3,000 TPH
    • Ship loaders – for ocean-class vessels of 65 000 -110 000 DWT, with a capacity of 2,000 to 6,000 TPH.
    • Continuous type ship unloaders (with bucket chain elevator inside unloading device).


If you look at it from an industry branch point of view, you can divide all the market into 7 main areas:

1. Enrichment plants that receive coal from mines and open pits by rail, and use car dumpers for unloading it, and scraper or bucket, chain or rotary reclaimers at an open or closed warehouse (as a storage of raw materials or an blending storage of raw materials, and a storage of finished products before shipment), as well as a stackers to put a material in a pile.

2. Power stations that receive coal by rail, and use car dumpers to unload coal from incoming railway cars, a stacker to fill in a storage (according to Russian standards, a power station coal storage must allow the operation of the station for 30 days without receiving new fuel) and some of the possible reclaimers to take material from the stack. Gantry grab cranes are often used to unload rail way cars, feed coal to the storage, take fuel from the storage and feed it to the receiving hoppers. It is also common to dump material by a belt loop loader or plow dumper directly from the conveyor gallery to the storage, followed by distribution over the warehouse area by bulldozers. Due to the fact that most of the coal on the Russian market has a piece size of up to 300 mm and even more, warehouses have a large capacity – hundreds of thousands of tons, the operating temperature range starts from -45 degrees, and until recently, environmental pollution with coal dust was not a big problem, scraper reclaimers have a very limited distribution. Much more often you can find a rotary bucket wheel boom stacker reclaimer.

3. Metallurgical and coke plants consume large volumes of coal of the most expensive brands. Such enterprises can have up to 10 car dumpers that ensure uninterrupted unloading of rail way cars, but they also have much less technological equipment in the storage - they often dump coal directly from the conveyor passing over the overpass, and then take coal from the storage by bridge grab cranes. It is also often carried out loading of coke by grab bridge cranes in heavy-duty dump trucks.

4. "Old guard" - old universal transshipment sea terminals with portal cranes, used only for coal transshipment, having high costs, far from optimal logistics, but not requiring large capital investments, having a pool of suppliers and customers that has already been developed over many years, dynamic and grasping, much of them is based on key specialists – professionals of the industry.

5. New specialized terminals - with large investments and support at the state level, focused on large cargo turnover (up to 20 million tons per year or more), high equipment capacity (from 3,500 to 6,000 TPH per process line), working with large suppliers and customers, thinking in billions, more bureaucratic and formalized, functioning as robotic systems.

6. Coastal terminals have the smallest part of the market: in the far Eastern and Northern ports, ships of 500 to 5,000 DWT are loaded to deliver coal to remote settlements in the Arctic with small coal power plants and for heating residential buildings. These terminals use grab gantry cranes and conveyor loading systems of simple design and as low productivity as cost. At the points where this coal is obtained, unloading is carried out almost exclusively by portal grab cranes. Approximately the same logistics scheme is implemented along the country's major river arteries. Some industrial enterprises have small river berths and receive both coal and other materials (for example, limestone) through them.

7. For the time individual cases of using continuous coal loading machines are being discussed as projects. Although we are used to seeing Russia as a coal-exporting country that transports coal through its territory by rail, sometimes there are circumstances that lets to consider (at least at the project level) the use of more powerful and environmentally friendly systems, especially in regions that are significantly far from motherland.

At the moment, despite the fall on world’s market, new specialized export terminals are being built, and those already built are introducing new lines, increasing capacity, upgrading to handle larger vessels, equipping closed storages, installing more advanced aspiration and dust suppression systems, replacing grab gantry cranes with continuous type ship loaders to meet more stringent environmental requirements.

One of the most popular services today is consulting customers and designers about best practices in coal transshipment, successes and mistakes, review and argumentation of all the advantages and disadvantages of different approaches.

Also, customers often want to see one supplier for all technologically related equipment – for example, a car dumper, feeder, positioner, crushing and milling machine, stacker reclaimer, ship loader and all the auxiliary conveyors. The "one-stop-shopping" technology allows the customer to save time and reduce risks, and requires the supplier to have a wide product line and fair amount of knowledge and experience to cope with such complex tasks.

In order to remain competitive, Tehnoros continuously monitors advanced technologies, applies the most high-tech engineering in its projects, puts customer-orientation first in its relations with customers, and maintains the highest level of quality.