Locality: Elektrárna Tušimice II
Material, output: hnědé uhlí, 1500 t/h
Belt width: 1600 mm
Year: 2007
The basic function of the DC 1 unit (coal handling) is conveyance of coal from the handover point –SD, a.s. Doly Nástup Tušimice (DNT) to storage tanks of individual boilers.
The basic conveying track of fuel to the boiler plant is solved by means of two independent lines A and B. Each line can supply fuel to the boiler plant independently of each other. Mobile conveyors or two-way lead-ins are inserted in the important transfer points in the conveying track, which makes it possible to connect various combinations of conveyors from the lines A and B to the resultant conveying track, route conveyance of material to the yard No. 1 or No. 2, provide conveyance of material from yards to the boiler plant.
The DC1 included modernization or replacement of all the partial equipment serving or necessary for conveyance and storage of fuel for the purpose of providing reliable operation for the next approx. 25 years.
Conveying tracks in the external coal handling system consist of the following equipment – fixed belt conveyors, mobile belt conveyors, belt conveyors with a tripper car, distributing lead-ins, conveying track for scale testing, bridge loaders, and the tripper car.
Conveying devices – parameters:
Fixed belt conveyors
| Pcs | Equipment | Width B (mm) | Length L (m) | Difference in height H (m) | Drive power input N (kW) | Conveying capacity Q (t/h) |
| 2 | Belt conveyor T1A.B | 1,600 | 46 | 11 | 110 | 1,500 |
| 1 | Belt conveyor T3 | 1,600 | 312 | 7.1 | 200 | 1,500 |
| 1 | Belt conveyor T6 | 1,600 | 103 | 4.5 | 90 | 1,500 |
| 1 | Belt conveyor T7 | 1,600 | 57 | 7 | 75 | 1,500 |
| 1 | Belt conveyor T8 | 1,600 | 221 | 0 | 90 | 1,500 |
| 2 | Belt conveyor T10 A.B | 1,600 | 68 | 0 | 45 | 1,500 |
| 1 | Belt conveyor T22 | 1,600 | 402 | 0 | 200 | 1,500 |
Mobile belt conveyors
| Pcs | Equipment | Width B (mm) | Length L (m) | Difference in height H (m) | Drive power input N (kW) | Conveying capacity Q (t/h) |
| 2 | Belt conveyor T2 A.B | 600 | 16 | 0 | 22 | 1,500 |
Belt conveyors with tripper car
| Pcs | Equipment | Width B (mm) | Length L (m) | Difference in height H (m) | Drive power input N (kW) | Conveying capacity Q (t/h) |
| 1 | Belt conveyor T5 | 1,200 | 343 | 7.7 | 200 | 750 |
| 1 | Belt conveyor T21 | 1,200 | 409.5 | 11.7 | 235 | 750 |
Conveying track for scale testing
| Pcs | Equipment | Width B (mm) | Length L (m) | Difference in height H (m) | Drive power input N (kW) | Conveying capacity Q (t/h) |
| 1 | Belt conveyor T40 | 1,600 | 24.9 | 7.8 | 75 | 1,500 |
| 1 | Belt conveyor T41 | 1,600 | 47.3 | 13.88 | 200 | 1,500 |
| 1 | Belt conveyor T42 | 1,600 | 6.4 | 0 | 11 | 1,500 |
| 1 | Belt conveyor T43 | 1,600 | 23.25 | 0 | 18.5 | 1,500 |
| 1 | Belt conveyor T44 | 1,600 | 4.43 | 0.7 | 11 | 1,500 |
| 1 | Belt conveyor T31 | 1,600 | 28.36 | 6.5 | 75 | 1,500 |
Tripper car, 1 pc
| Type designation of tripper car | SVZ 2000/35 |
| Conveying capacity of machine – theoretical | 2,000 m3/h |
| Boom conveyor belt – width | 1,200 mm |
| Boom conveyor belt – speed | 4 m/s |
| Boom conveyor belt – length | 35 m |
| Pitch of boom | +15° to -7.5° |
| Stockyard conveyor – width | 1,200 mm |
| Stockyard conveyor – speed | 3.15 m/s |
| Stockyard conveyor – max. tension | 100 kN |
| Range of boom slewing | ±100° |
| Circumferential speed at boom end | 8.5 m/s |
| Speed of lifting – lowering at boom end | 6.4 m/min |
| Travel speed | 19.5 m/min |
| Rail gauge | 5,000 mm |
| Weight of counterweight | 20 t |
| Supply voltage | 400 V / 50 Hz |
| Installed power in total | 130 kW |
| Total machine weight approx. | 140 t |
Bridge bucket wheel loader, 2 pcs
| Type designation of loader | N 2000 x 50 |
| Theoretical conveying capacity of loader | 2,000 m3/h |
| Maximum height of stockyard | 11 m |
| Maximum width of stockyard | 45 m |
| Span of machine | 50 m |
| Wheelbase of travelling units | 10 m |
| Diameter of bucket wheel over bucket cutting edges | 10.8 m |
| Total working path of bucket wheel along bridge structure | 41.7 m |
| Weight of loader | approx. 310 t |
| Number of buckets | 10 |
| Theoretical volume of one bucket | 1,000 dm3 |
| Bucket wheel speed | approx. 4.2 rpm |
| Travelling speed of bucket wheel carriage (controlled by frequency converter) | approx. 5 to 20 m/min |
| Conveyor belt – width | 1.6 m |
| Nominal speed of conveyor belt | 2.1 m/sec |
| Travelling speed of loader (controlled by frequency converter) | approx. 4 to 20 m/min |
| Installed power in total | approx. 270 kW |
| Assumed concurrence | approx. 231 kW |
| Basic operation voltage – supply | 3PE ∼ 50 Hz 6000 V / IT |
| Basic operation voltage – motor | 3PE ∼ 50 Hz 400 V / TN-S |
