Rotary Vacuum Disc Filters
1.tary Vacuum Disc Filters is used as filter media to replace the traditional sand filter. It is mainly used in sewage treatment plant upgrading, water reuse engineering and other sewage treatment engineering filtration process.
2. the upgrading project of sewage...
Description
1.Rotary Vacuum Disc Filters is used as filter media to replace the traditional sand filter. It is mainly used in sewage treatment plant upgrading, water reuse engineering and other sewage treatment engineering filtration process.
2. the upgrading project of sewage treatment plant, combined with chemical phosphorus removal treatment measures, the effluent quality can be improved.
Technical parameters
Product detail
Original: Jiangsu, China
Certification: ISO9001, ISO14001, etc.
Price: Negotiable
Material: SUS304
Voltage: 380V 50Hz, the voltage can be as local demand
Payment term: TT, LC
Delivery date: Negotiable
Packing: export standard
Market: Middle East/ Africa/Asia/South America/Europe/North America
Warranty: 1 year
MOQ: 1 set
Working principle
Our product consists of a series of horizontal rotating filter plates, each of which is composed of an even number of fan-shaped filter plates. The disc has a filter cloth that can be easily disassembled, the filter cloth is made of fiber, and the filter diameter of the filter is 10um.
Application
Rotary Vacuum Disc Filters can be widely used for filtration after sedimentation, clarification and flotation.
The cooling water and the circulating water are further purified.
Our product is used for the treatment of sewage. After the conventional two grade sewage treatment system, the total suspended solids are removed, and some pollutants such as phosphorus, turbidity and COD can be removed with the addition of adding agents, especially for the upgrading and upgrading of the effluent from the built sewage treatment plant.
The middle water is used back.
Equipment characteristics
The running state of it is as follows: filtration, backwashing , sludge discharge.
1. Filtering
The flow of sewage enters the filter, and a water weir is arranged in the filter. The filter cloth is totally submerged, and the sewage is filtered through the outer side of the filter cloth. The filtrate is collected through the hollow pipe, and the gravity flows through the weir to discharge the filter. The whole process is continuous.
2. Backwashing
Some sludge adsorbed on the outside of the filter cloth and gradually formed the sludge layer. With the accumulation of sludge on filter cloth, the filtration resistance of filter cloth increases, and the water level of filter increases gradually. The pressure sensor is used to monitor the level change in the tank. When the liquid level in the tank reaches the set point (high water level), PLC can start the anti suction pump and start the backwashing process. When cleaning, the filter can be filtered continuously.
During filtration, the filter turntable is in a static state, which is conducive to the deposition of the bottom of the sludge. During cleaning, the filter turntable rotates at a speed of 1 /2 minutes. The suction pump suction filter cloth surface is absorbed and the sludge particles accumulated on the filter cloth are absorbed, and the water in the filter turntable is drawn from the inside to the outside, and the filter cloth is anti cleaning. The instantaneous flushing area accounts for only about 1% of the total filter turntable area. The backwashing process is intermittent.
When backwashing, the 2 filter plates are one group, which are controlled by the electric valve on the pipe of the suction pump, and the cleaning process of each group in a complete cleaning process of it is carried out alternately, during which the work of the suction pump is continuous. When the water quality is suddenly deteriorated, the liquid level in the pool is rapidly rising to the backwash level, and all backwashing pumps are started at the same time, and several groups of filter turntables can be backwashed at the same time until the backwashing cycle is restored to normal.
3. Mud drainage system
A funnel tank bottom is arranged under the filter turntable of it, so as to facilitate the collection of sludge at the bottom of the pool. Sludge deposition at the bottom of the sludge tank reduces the amount of sludge on the filter cloth, prolonging the filtration time and reducing the amount of backwash water. After a set period of time, PLC starts the mud pump, and restores the sludge to the drainage system of the plant through the bottom hole perforating mud pipe. Among them, the time interval between sludge discharge and sludge discharge can be adjusted.
Water conditions and effluent quality
It is located at the terminal of water treatment.
Inflow: SS is less than 30mg/L (maximum can withstand 40- 60 mg/L.)
Effluent: SS is less than 10mg/L, and the turbidity is less than 2 NTU.
Design parameters
Average filtration rate is less than 15m3/m2.h
Filter area 5.7m2 (D=2m single disc) ,12.6m2 (D=3m single disc)
Backwash water is less than 1%
The operating cost is less than 0.001 USD/ton of water (excluding depreciation charges).
Anti suction strength 333L/m2.S
Selection formula
F=Q/V
F- The filter area m2;
Q- design quantity m3/h;
V- average filtration rate m3/m2.h
The average filtration rate should be selected according to the solid load and hydraulic load of the influent.
Experience and markets:
KHN is professional Rotary Vacuum Disc Filters manufacturer. Products are well sailed all over the world, got many compliments from customers.
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