Job Report
Transcription
Job Report
Job Report Optimum Mixtures HAZEMAG Primary Crushing Plant processes pre-mixed Limestone/Clay at Ünye Cimento Buyer: MVT Dillingen Germany Customer: Ünye Cimento Ünye, Turkey HAZEMAG & EPR GmbH • Brokweg 75 • D-48249 Dülmen • Postfach 1364 • D-48234 Dülmen Phone: +49 25 94/ 77-0 • Fax: +49 25 94/ 77-400 e-Mail: [email protected] • Internet: http://www.hazemag.de JR_Limestone_Ünye_E.doc Job Report Plant Description The new primary crushing plant incorporates the processing of limestone and clay at the same time. The two materials are stored in separate hoppers, from where they are extracted simultaneously by apron conveyor and fed into the HAZEMAG Primary Impactor for processing. The clay is extracted from a hopper by an apron conveyor installed at right angles to the limestone apron conveyor. Since the clay has an H20 content of up to 23 %, the hopper has been specially designed to ensure the trouble-free handling of this sticky material. The clay is discharged onto the limestone conveyor which is already covered with a layer of limestone, thus preventing the clay from adhering to the main apron conveyor. As the feed material mixture can have a moisture content of up to 14 % H20, all the main parts of the impactor coming into contact with the material, such as inlet plate, impact aprons, etc. are heated by an indirect thermal oil heating system resulting in the immediate evaporation of the feed material surface water on contact and reducing the caking hazard to a minimum. The rugged impactor is fitted with a heavy duty, welded cast steel rotor type GSK and with a grinding path thus producing the required granulometry in a single pass. In order to guarantee the necessary consistent cross-sectional belt loading for a downstream cross-belt analyzer, a small intermediate hopper is provided underneath the impactor outlet, from which a light-weight design apron conveyor can continuously extract a constant amount of material. Additionally, this conveyor is mounted on load cells, so that the material flow can be measured at the same time. This apron feeder discharges its constant load onto the downstream belt conveyor for the further transport to the mixing bed. In order to guarantee a consistently high quality and optimum mix of the crushed raw material prior to stockpiling on the mixing bed, the conveyor belt downstream of the impactor is fitted with a cross-belt analyzer, which continuously analyzes the composition of the crushed material. The results of the analysis are evaluated and used to control the speed of the feed material apron conveyors and thus to optimise the mixture already in front of the mixing bed. Technical Data Feed material: Feed size: Capacity: Apron conveyor limestone: Apron conveyor clay: Crusher: Crusher product: Limestone and clay Limestone up to 1,200 mm Clay up to 500 mm 1,100 t/h (limestone 800 t/h, clay 300 t/h) Width: 2.25 m, length: 11.6 m Width: 1.40 m, length: 13.3 m HAZEMAG Impactor Type AP-PM 2022 Rotor: GSK 2022 diameter 2,000 mm, width 2,200 mm Installed drive rating: 1,250 kW 90 % < 80 mm HAZEMAG & EPR GmbH • Brokweg 75 • D-48249 Dülmen • Postfach 1364 • D-48234 Dülmen Phone: +49 25 94/ 77-0 • Fax: +49 25 94/ 77-400 e-Mail: [email protected] • Internet: http://www.hazemag.de JR_Limestone_Ünye_E.doc