Rotating Drum Filter Sludge Dewatering Machine
Disc filters are high rate inside-out filtration systems where the
dirty water flows into a central drum, then out through discs. They
are comprised of woven filter fabrics that remove solids from the
influent stream.
The inside of the drum is held lower than the ambient pressure. As
the drum rotates through the slurry, the liquid is sucked through
the membrane, leaving solids to cake on the membrane surface while
the drum is submerged. A knife or blade is positioned to scrape the
product from the surface.
Rotary Vacuum Drum Filters process slurry and discharge cake in a
continuous process. RVDFs can be used in wastewater treatment,
sludge dewatering, chemical manufacturing, the pharmaceutical
industry, cosmetics, mineral mining and refining, and the food
processing industry.
Parameters
| Model | DS Standard Capacity(kg/h) | Sludge Treatment Capacity(m³/h) |
| Low Concentration | High Concentration | 2000mg/L | 4000mg/L | 10000mg/L | 20000mg/L | 25000mg/L | 50000mg/L |
| MDS101 | 3 | 6 | 1.5 | 0.75 | 0.6 | 0.3 | 0.24 | 0.12 |
| MDS131 | 6 | 12 | 3 | 1.5 | 1.2 | 0.6 | 0.48 | 0.24 |
| MDS132 | 12 | 24 | 6 | 3 | 2.4 | 1.2 | 0.96 | 0.48 |
| MDS201 | 12 | 20 | 6 | 3 | 2 | 1 | 0.8 | 0.4 |
| MDS202 | 24 | 40 | 12 | 6 | 4 | 2 | 1.6 | 0.8 |
| MDS301 | 30 | 60 | 15 | 7.5 | 6 | 3 | 2.4 | 1.2 |
| MDS302 | 60 | 120 | 30 | 15 | 12 | 6 | 4.8 | 2.4 |
| MDS303 | 90 | 180 | 45 | 22.5 | 18 | 9 | 7.2 | 3.6 |
| MDS351 | 60 | 120 | 30 | 15 | 12 | 6 | 4.8 | 2.4 |
| MDS352 | 120 | 240 | 60 | 30 | 24 | 12 | 9.6 | 4.8 |
| MDS353 | 180 | 360 | 90 | 45 | 36 | 18 | 14.4 | 7.2 |
| MDS354 | 240 | 480 | 120 | 60 | 48 | 24 | 19.2 | 9.6 |
| MDS401 | 100 | 170 | 50 | 25 | 17 | 8.5 | 6.8 | 3.4 |
| MDS402 | 200 | 340 | 100 | 50 | 34 | 17 | 13.6 | 6.8 |
| MDS403 | 300 | 510 | 150 | 75 | 51 | 25.5 | 20.4 | 10.2 |
| MDS404 | 400 | 680 | 200 | 100 | 68 | 34 | 27.2 | 13.6 |
Principle Of The Device
XGRF type rotary precision filter is a filter device for removing
suspended solids. The device consists of the main body module of
the equipment, the core filter module, the backwash system, the
drive system, and the automatic control system. The drum is
equipped with a filter screen that can be easily disassembled.
The equipment is continuous filtration, and there is an automatic
on-off switch inside the equipment. When water enters the drum, the
liquid level sensor will send a signal, start the deceleration
drive system to drive the drum to rotate, and start the backwash
pump at the same time. Sewage flows into the hollow drum, and there
is a high-strength stainless steel filter screen on the drum. The
sewage flows out from the inside of the filter screen to the
outside, and the suspended matter in the sewage water is trapped on
the inside of the filter screen. The flushing water flushes the
filter screen from the outside to the inside through the nozzle
located at the top of the drum, and the washed fine particulate
matter is collected by the backwash water collection tank inside
the equipment and discharged from the equipment through the sewage
pipe. When no water passes through the device, the device will
automatically stop.
Equipment Advantage
A. The filter screen is made of 316L stainless steel, which is
non-toxic, non-polluting, no chemical cleaning, and has a service
life of not less than 10 years. The filter screen is woven from
316L stainless steel through fibrillation technology, and then
seamlessly welded and fixed on the stainless steel rib with
advanced spot welding technology.
B. The filter is easy to replace. Each set of equipment consists of
8 independent arc segments, each segment can be easily disassembled
and assembled, so there is no need for special tools and equipment
when replacing the filter.
C. Backwashing consumes less water. The backwash water volume of a
single unit is 60m3/d, the backwash water volume and the system
sewage volume are small, which reduces the burden of subsequent
treatment of polluted wastewater.
D. The treatment effect is good. The stainless steel filter screen
is used, and the filter pore size of the filter screen is 10~200µm,
and different pore sizes can be selected according to the
requirements of the effluent. So as to ensure the water quality and
water stability.
E. Strong shock load resistance. The equipment can operate normally
when the influent SS is not higher than 40mg/L.
F. Filtration can run continuously. Continuous filtration is
possible while backwashing.
G. Small head loss. not more than 0.3m.
H. Low energy consumption for operation. The main drive motor and
the backwash pump motor have low power and operate intermittently.
The operating cost is about 0.002 yuan/ton of water per day.
I. Run fully automated controls. Filtration, backwashing, etc. are
all controlled by the program, and are equipped with multiple
protections, and no special personnel are required for daily
operation and management.
J. Small footprint. In the case of the same amount of treated
water, the footprint of the filtration equipment is much smaller
than that of other filtration process equipment.
About Us
Wuxi BioCell Environmental Technology CO., Ltd. is a professional
moving bed biofilm reaction system supplier that is mainly engaged
in the R&D of MBBR technology equipment, production, and
affiliated sales and services.
The main products include Sludge dewatering machine; Mbbr
integrated sewage treatment plant; MBBR suspended bio filter media;
Mbbr coarse bubble diffuser and Mbbr media retention screen/seive.
In addition, BioCell provides end-to-end solutions with
highly-efficient MBBR carriers, compact plants and energy savings
for rebuilding, transformation and the upgrading of wastewater
treatment systems. Service cases have covered industries such as
automobile and auxiliary components, mechanical processing,
printing and dyeing, food, new energy, and chemical industry.
