Auto Mechanical Bar Screen / SS304 SS316L Bar Racks Wastewater Treatment
Cost effective mechanical bar screen for wastewater treatment
The Bar Screen is installed at the inlet of water treatment system. It is composed of pedestal, specific plough shaped tines, rake plate, elevator chain and motor units etc. It is assembled into different space according to different flow rate or channel width.The rake plate ,which is fixed in the elevator chain,starts clockwise movement under the drive of the driving device, hooking residue from down to up together with the elevator chain. Under the effect of steering guide and guiding wheel, residue gets discharged by gravity while the rake plate reached the top of bar screen. The rake tines moved to the bottom of the equipment and starts to work for another round, residue moves continuously.
Technical Parameters
| Model Parameter |
GNCF -500 |
GNCF -600 | GNCF -700 |
GNCF -800 |
GNCF -900 |
GNCF -1000 |
GNCF -1100 |
GNCF -1200 |
GNCF -1300 |
GNCF -1400 |
GNCF -1500 |
|
| Device Width(mm) | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | |
| Channel Width B1(mm) | B+100 | |||||||||||
| Effective Grille Spacing B2(mm) | B-157 | |||||||||||
| Anchor Bolts Spacing B3(mm) | B+200 | |||||||||||
| Total Width B4(mm) | B+350 | |||||||||||
| Teeth Spacing b(mm) | t=100 | 1≤b≤10 | ||||||||||
| t=150 | 10＜b≤50 | |||||||||||
| Installing Angle α(˚) | 60-85 | |||||||||||
| Channel Depth H(mm) | 800-12000 | |||||||||||
| Height Between Discharge Port and Platform H1(mm) | 600-1200 | |||||||||||
| Total Height H2(mm) | H+H1+1500 | |||||||||||
| Back Rack Height H3(mm) | t=100 | ≈1000 | ||||||||||
| t=150 | ≈1000 | |||||||||||
| Screen Speed v(m/min) | ≈2.1 | |||||||||||
| Motor Power N(kw) | 0.55-1.1 | 0.75-1.5 | 1.1-2.2 | 1.5-3.0 | ||||||||
| Head Loss(mm) | ≤20(no jam) | |||||||||||
| Civil Load | P1(KN) | 20 | 25 | |||||||||
| P2(KN) | 8 | 10 | ||||||||||
| △P(KN) | 1.5 | 2 | ||||||||||
| Model Parameter |
GNCF-500 | GNCF-600 | GNCF-700 | GNCF-800 | GNCF-900 | GNCF-1000 | GNCF-1100 | GNCF-1200 | GNCF-1300 | GNCF-1400 | GNCF-1500 | ||
| Flow Depth H3(m) | 1 | ||||||||||||
| Flow Velocity V(m/s) | 0.8 | ||||||||||||
| Grid Spacing b(mm) | 1 | Flow Rate Q(m3/s) | 0.03 | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.08 | 0.09 | 0.1 | 0.11 | 0.12 |
| 3 | 0.07 | 0.09 | 0.1 | 0.12 | 0.14 | 0.16 | 0.18 | 0.2 | 0.22 | 0.24 | 0.26 | ||
| 5 | 0.09 | 0.11 | 0.14 | 0.16 | 0.18 | 0.21 | 0.23 | 0.26 | 0.28 | 0.31 | 0.33 | ||
| 10 | 0.11 | 0.14 | 0.17 | 0.21 | 0.24 | 0.27 | 0.3 | 0.33 | 0.37 | 0.4 | 0.43 | ||
| 15 | 0.13 | 0.16 | 0.2 | 0.24 | 0.27 | 0.31 | 0.34 | 0.38 | 0.42 | 0.45 | 0.49 | ||
| 20 | 0.14 | 0.17 | 0.21 | 0.25 | 0.29 | 0.33 | 0.37 | 0.41 | 0.45 | 0.49 | 0.53 | ||
| 25 | 0.14 | 0.18 | 0.22 | 0.27 | 0.31 | 0.35 | 0.39 | 0.43 | 0.47 | 0.51 | 0.55 | ||
| 30 | 0.15 | 0.19 | 0.23 | 0.27 | 0.32 | 0.36 | 0.4 | 0.45 | 0.49 | 0.53 | 0.57 | ||
| 40 | 0.15 | 0.2 | 0.24 | 0.29 | 0.33 | 0.38 | 0.42 | 0.46 | 0.51 | 0.55 | 0.6 | ||
| 50 | 0.16 | 0.2 | 0.25 | 0.29 | 0.34 | 0.39 | 0.43 | 0.48 | 0.52 | 0.57 | 0.61 | ||
Working Principle:
When the rake tooth chain operate to upside of equipment, due to the guiding of Geneva wheel and curve, which produce the relative self-cleaning motion between each group rake tooth, most of the solid drop down by gravity. Another parts clean up the sundries sticking in the rake tooth by sweeper ‘s Reverse movement.
Rake tooth chain similar to grilling by water flow direction, the rake tooth clearance which assembled in rake tooth chain shaft can be chose according to usage condition; Which can guarantee water flow pass by smoothly after the rake tooth separate the suspended solid in the fluid. the whole process can be continuous and intermittent.
Advantages:
-High Separation Efficiency
-Simple structure with compact size, easy to install and move
-Overload safety device. It can cut the shear pin when screen is overloaded
-Excellent self-cleaning ability with realiable operation
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