Grashlak dryer

Granulated blast furnace slag buy in Ukraine

      ENERGOTEK LLC designs and manufactures dryers of all types and types for blast furnace slag / blast furnace granulated slag.
      Our company has the ability to design and produce according to customer's specifications any drying unit for granulated slag with a capacity in the range from 1 ton per hour to 25 tons per hour. If higher productivity is needed, our company is ready to offer modular systems for drying granulated slag with a capacity of 70 tons per hour to 500 tons per hour.
       Granulated blast furnace slag (colloquially - granshlag), differs from just blast furnace slag. Blast furnace slag, after casting iron, is poured in molten form from a blast furnace and then cools down in dumps. Blast furnace slag is the same blast furnace slag that goes to granulation. There are 3 types of granulation of blast furnace slag - dry, semi-dry and wet. In the territory of the former USSR, blast furnace slag is obtained mainly by the wet method, which is why up to 18-20% of water can be in the slag after granulation. The dryer drum for drying blast furnace granulated slag should be aggregated with a heat generator operating either on gaseous fuel (natural gas, propane-butane mixture), or on liquid (diesel fuel, fuel oil, various synthetic boiler / furnace fuels, coal water), or solid (wood fire chambers, coal fire chambers, multi-fuel (working both on pellets, briquettes from wood raw materials, agricultural raw materials, and wood chips, wood, coal - brown, anthracite, coal grades D and G), coal-dust injection units).

       The easiest to maintain and most technologically advanced are natural gas heat generators. They can be fully automated, do not require constant monitoring. The only drawback is the cost of natural gas in Ukraine. The cost of drying is 1.5-3 times higher than when working on solid fuels or liquid (synthetic furnace fuels, products of tire pyrolysis, oils). The most significant savings can be achieved by using solid fuel heat generators. Among them, the best price / cost ratio * manufacturability has a pulverized coal heat generator. And the most economical will be a heat generator working on briquettes from sunflower husk and also on brown coal (pieces 20-100mm).
       However, they have significant disadvantages. So, for example, all solid fuel heat generators require a stoker for timely fuel supply and ash removal. When using a heat generator on wood, it is necessary to constantly monitor the moisture of the incoming firewood, since otherwise it will be impossible to achieve the necessary heat output for the drying process. A permanent warehouse for firewood with a weekly supply is also needed if you do not have a number of permanent sources of firewood and a firewood preparation area (unloading, sawing, sorting). For example, for a heat generator with a capacity of 1-1.5 MW, the required amount of firewood is 25-37 cubic meters. per day, which is equivalent to 1 truck. But for example, brown coal will need 2-2.5 times less. Thus, it turns out that depending on the wishes and needs of the customer, the type of heat generator used is not always obvious. Sometimes it is more advisable to put a heat generator running on diesel fuel or on natural gas and not have unnecessary trouble.

     Also, in addition to the heat generator, for the operation of the drying drum, a smoke exhaust is required, which ensures the suction of the necessary combustion air, its passage through the drying drum, cyclone and evacuation of moisture evaporated from the ores. For each productivity in tons per hour, taking into account humidity at the inlet and outlet of the dryer drum, rheological properties of slag, porosity, etc., a smoke exhauster with the necessary parameters is specially calculated, designed and produced.
       The third necessary element for the proper conduct of the slag drying process is the presence of a dust precipitating cyclone. Dry granular slag is not a very dusty material and therefore dust cleaning systems here will not be super-large both in size and in cost. The parameters of the cyclone depend on the performance of the dryer drum, the amount of moisture removed from the material, such as a heat generator.
       Therefore, in each case, depending on the configuration, we select cyclones individually.
    When purchasing equipment in our company, we provide all the necessary documents - data sheet, operation manual, installation and aggregation schemes with the supply and unloading of material. We also provide any feasible advisory assistance in the preparation of project documentation for coordination with government agencies. Warranty - 24 months. At the end of the warranty - after-sales service.
 

     The price is only for a tumble dryer of the minimum configuration and minimum performance. The price does not include heat generator, cyclone, smoke exhaust.