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Sludge thickening screw press
Sludge thickening screw press inherits the technical advantages of sludge dewatering screw press and developed its own advantages, such as low energy consumption, nigh efficiency, fully automatic control, and stable operation. It can directly thickenthe sludge in the secondary sedimentation tank quickly and continuously, and the sludge concentration is stable and adjustable in the range of 90-96%. After using tinis equiprient, thickening tark is not needed any more, which reduces construction ost and land space. Furthermore, it can effectively reduce the odor and phosphcorus release caused by the sludge in the thickening tank, release the workload of subsequent treatments, and significantly increase the capacity of sludge dewatering equipment.
Description
Work Principle
The sludge thickening screw press is composed of a thickener, a driving device, a filttate tank, a mixing system, and a frame. When the screw press is working, the sludge IS purnped to Ihe rousing tark by the sudge purmp, In the mean time, the dosng pumQ aiso guanttatively transports the polmer to the mixing tank, then the stirrina motor drives agitator to start mixing untl solid particles are floculated. When the liquid level reaches the upper level of the fiquid level sensor, the sersor gets a sigrwl and instructs the main motor of screw press to work, thereby starting to filter and press the sludge that comes into the screws body. Under the squeezing of the screw shaft, the sludge is raised step by step to the sludge outlet, and the filtrate flows out from the gap between the fixed ring and the moving ring.
In general the sludge thickener screw press uses the principle of screw extrusion which is finalized by the strong extrusion force from the change of screw diameter and pitch, and the tiny gap between the rroving ring and the fixed ring, thus the sold andliguid can be separated. Sluckenthickening screw press is a new type of solick-licuid separationequipment for sludge concentration.
Technical Features
The sludge thickening range is wide, it is applicable to sludge consistency ranges from 98% to 99.8%. The concentrate of the thickened sludge is stable and adjustable in the range of 90-96%. High concentration efficiency and small land space. No filter cloth, self-cleaning, no clogging, no need for high-pressure washing water.
Low speed operation, low energy consumption, low operating cost, no vibration, no noise.
Closed operation reduces odor emissions.
Few vulnerable parts, low maintenance cost and long service life. Fully automatic control, continuous operation, simple maintenance and management.
Scope of application
As the pretreatment equipment of the sludge deep dewateering system, it is usually matched with ultra-high pressure elastic press, membrane filter press and other sludge deep dewatering equipments.
Replace the sludge thickening tank as the pretreatment equipment of the sludge dewatering system. Used in other slurry concentration or solid-liquid separation processes.
| Model | Capacity(m3/hr) | Sludge treatment capacity | Screw specification | Mud cake discharge outlet Off the ground (mm) | Size (mm) | Weight (kg) | Running Weight (KG) | Power (kw) | water pressure | Cleaning water consumption (L/h) | Maintenance trequency | Replacement cycle of wearing parts (year) | ||||||||
| 2500mg/L | 5000mg/L | 10000mg/L | 20000mg/L | L | W | H | Screw shaft | Blender | total | Screw shaft | Activity Ring | |||||||||
| DLN301 | 70~100kg/h | 28 m³/h | 14 m³/h | 10 m³/h | 5 m³/h | φ300×1 | 500 | 3160 | 1150 | 2000 | 850 | 1250 | 0.75 | 0.55 | 1.3 | 0.1Mpa~0.2Mpa (No need for high pressure flushing device) | 40 | 5 minutes/day | 10 | 5 |
| DLN302 | 140~200kg/h | 56 m³/h | 28 m³/h | 20 m³/h | 10 m³/h | φ300×2 | 500 | 3360 | 1350 | 2000 | 1200 | 1900 | 1.5 | 0.75 | 2.25 | 80 | 10 | 5 | ||
| DLN303 | 210~300kg/h | 84 m³/h | 42 m³/h | 30 m³/h | 15m³/h | φ300×3 | 500 | 3560 | 1600 | 2000 | 1750 | 2550 | 2.25 | 1.1 | 3.35 | 120 | 10 | 5 | ||
| DLN304 | 280~400kg/h | 112 m³/h | 56 m³/h | 40 m³/h | 20 m³/h | φ300×4 | 500 | 3700 | 2110 | 2000 | 2300 | 3400 | 3 | 1.1 | 4.1 | 160 | 10 | 5 | ||
| DLN351 | 120~160kg/h | 48 m³/h | 24 m³/h | 16 m³/h | 8m³/h | φ350×1 | 680 | 3850 | 1200 | 2300 | 1030 | 1930 | 1.1 | 0.75 | 1.85 | 60 | 10 | 5 | ||
| DLN352 | 240~320kg/h | 96 m3/h | 48 m³/h | 32 m³/h | 16m³/h | φ350×2 | 680 | 3950 | 1600 | 2300 | 1960 | 3110 | 2.2 | 1.1 | 3.3 | 120 | 10 | 5 | ||
| DLN353 | 360~480kg/h | 144 m³/h | 72 m³/h | 48 m³/h | 24 m³/h | φ350×3 | 680 | 4250 | 2000 | 2300 | 2890 | 4390 | 3.3 | 1.5 | 4.8 | 180 | 10 | 5 | ||
| DLN354 | 480~640kg/h | 192 m³/h | 96 m³/h | 64 m³/h | 32 m³/h | φ350×4 | 680 | 4400 | 2550 | 2300 | 3820 | 5420 | 4.4 | 0.75+0.75 | 5.9 | 240 | 10 | 5 | ||
| DLN401 | 200~300kg/h | 80 m³/h | 40 m³/h | 30 m³/h | 15m³/h | φ400×1 | 880 | 4450 | 1400 | 2560 | 2090 | 4090 | 1.5 | 1.1 | 2.6 | 80 | 10 | 5 | ||
| DLN402 | 400~600kg/h | 160 m³/h | 80 m³/h | 60 m³/h | 30 m³/h | φ400×2 | 880 | 4650 | 1900 | 2560 | 3280 | 5780 | 3 | 1.5 | 4.5 | 160 | 10 | 5 | ||
| DLN403 | 600~900kg/h | 240 m³/h | 120 m³/h | 90 m³/h | 45 m³/h | φ400×3 | 880 | 4750 | 2550 | 2560 | 5170 | 7670 | 4.5 | 1.1+1.1 | 6.7 | 240 | 10 | 5 | ||
| DLN404 | 800~1200kg/h | 320 m³/h | 160 m³/h | 120 m³/h | 60 m³/h | φ400×4 | 880 | 4850 | 3150 | 2560 | 6560 | 9060 | 6 | 1.1+1.1 | 8.2 | 320 | 10 | 5 | ||
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