Fiber rotary filter manufacturer

Fiber rotary filter manufacturerFiber disc filter (filter cloth filter) is one of the effective filters in the sewage treatment process.Fiber rotary filter manufacturer,Fiber disc filterAdopting biological sewage treatment technology, the treatment effect is good, the effluent is stable, and it is loved by a large number of customers.Fiber disc filter is mainly used for cooling circulating water treatment and deep treatment of wastewater for reuse. As cooling water and circulating water, filtered and reused: inlet water qualitySS≤80mg/LBelow is the quality of the effluent waterSS≤20mg/LUsed for deep treatment of sewage, it can be used in the following fields: ① removal of total suspended solids ② removal of phosphorus by combining with chemical agents ③ removal of heavy metals, etc.

1、 Advantages and Characteristics

Fiber disc filter is a treatment method that intercepts impurities in water through filter cloth and reduces the concentration of suspended solids in water. The fiber rotary filter system includes: filtration system, backwashing system, electrical control system, water pump, etc. The entire system achieves high interception efficiency through optimized design.

1. The effluent quality is good and stable, meeting the first-class A standard for sewage treatment in China. High backwashing frequency prevents the growth of green algae, ensuring that the filter cloth is not clogged or compacted.

2. The operating cost of fiber disc filter is very low,

3. Compared with traditional processes, fiber rotary filter eliminates civil engineering such as blower room, lift pump room, chlorination room, clean water tank, sedimentation tank, etc., and occupies a very small area.

4. The fiber rotary filter eliminates many structures, valves, pipelines, etc., making equipment maintenance and repair simple and convenient. The degree of automation in operation is quite high, so there is no need for dedicated personnel to supervise, greatly reducing the labor intensity of workers.

5. Compared with traditional filters, fiber rotary filter eliminates the need for pre chlorination, which not only reduces operating costs but also avoids potential hazards.

2、 Application Fields

Fiber rotary filter equipment is mainly used for further purification of surface water, deep treatment of wastewater, and reuse of reclaimed water. Design water quality: influent SS ≤ 80mg/L, effluent SS ≤ 10mg/L, actual operation effluent is better.

1. Surface water purification mainly refers to the use of surface water in areas that do not require high water usage, such as cooling water.

2. Used for advanced treatment of sewage, placed after conventional activated sludge process, delayed aeration process, SBR system, oxidation ditch system, drip filter system, oxidation pond system, the objects that can be removed are total suspended solids, total phosphorus (requiring the addition of chemicals), heavy metals, etc.

3、 Equipment advantages

The fiber rotary filter filtration system is a new type of sewage deep treatment equipment, which is widely used in the deep treatment of sewage, the reprocessing of cooling circulating water, the reuse of reclaimed water, the purification of surface water, and the upgrading and transformation of municipal and industrial wastewater treatment.

Compared with traditional equipment, fiber disc filter equipment manufacturers have the following characteristics:

1. Low installed power: Raw water passes through fiber filter cloth under the action of gravity to complete the filtration process, and there is no energy consumption in the entire process;

2. Small footprint: The fiber rotary filter fully utilizes vertical space, and the layout of auxiliary equipment is compact, making it easy to manage and maintain centrally;

3. Small head loss: The commonly set head loss is 300mm;

4. Continuous operation of automation control: The system operates continuously under the control of the automation system, even when the backwashing process is started, the filtering process continues;

5. Low operating cost: During normal filtering, the system consumes no energy except for necessary monitoring components that are activated; The backwashing water is filtered water in the central tube, and the backwashing energy is concentrated with high efficiency;

6. The effluent quality is stable, and fiber filter cloth with different filtration accuracies can be selected to achieve effluent SS ≤ 5mg/L;

7. Strong impact resistance, equipped with different specifications of fiber filter cloth, with a water inlet tolerance of SS ≤ 80mg/L;

4、 The structural composition of the filter:

Fiber rotary filterThe core device of the filter is the middle filter turntable, which is composed of six fan-shaped sections wrapped with filter cloth. It belongs to a plug-in structure, making transportation and maintenance particularly convenient. The drive motor on the upper right drives the turntable to rotate; The middle of the filter disc is a hollow central water collection cylinder; The backwashing device includes a backwashing suction cup and a backwashing suction pump; The mud discharge device includes a mud discharge pump (also a reverse suction pump) and a bucket type mud collection tank, with porous mud discharge pipes arranged on top of the bucket type mud collection tank; It also includes the self-control system (PLC automatic control panel).

5、 Common faults and maintenance

Fiber turntable filter manufacturers should check the wiring terminals in the electrical control cabinet of the fiber turntable filter equipment every three months for looseness. If this is the case, the wiring terminals should be tightened. When there is a fault in the electrical part, the electrical circuit should be checked according to the electrical schematic to see if it is normal, if the circuit breaker trips, and if the fuse is burned out. The cause should be identified and resolved before powering on again.

Common faults and maintenance of electrical equipment in fiber rotary filter:

1. Reason for tripping of the motor circuit breaker of the fiber rotary filter equipment: (1) Loose or disconnected joints and terminals; (2) The current setting value of the circuit breaker is too small. Countermeasure: (1) Connect and fasten the terminals correctly; (2) Adjust the current setting of the circuit breaker according to the rated current of the motor.

2. Reason for tripping of water pump motor circuit breaker: (1) Loose or disconnected joint and terminal; (2) The current setting value of the circuit breaker is too small; (3) The water pump has a loud noise. Countermeasure: (1) Connect and fasten the terminals correctly; (2) Adjust the current setting of the circuit breaker according to the rated current of the motor; (3) Reverse the motor and adjust the motor phase sequence.

3. Reason for the water pump not producing water: (1) Leakage in the pipeline; (2) Motor reversal. Countermeasure: (1) Tighten the screws of the pipeline to make it sealed; (2) Adjust the motor phase sequence.

4. Electric valve motor does not start, reason: (1) not connected to power supply; (2) Disconnection, detachment of connectors from terminals; (3) The power supply voltage is incorrect or too low; (4) Overheating protector action (whether the ambient temperature is too high, whether the valve is stuck); (5) The micro opening action is not good; (6) The startup capacitor is not functioning properly. Countermeasure: (1) Connect the power supply properly; (2) Repair broken wires and correctly connect and tighten terminals; (3) Go check if the voltage is normal; (4) Reduce the ambient temperature and manually check if the valve opening and closing are normal; (5) Replace the micro switch; (6) Replace the capacitor with the manufacturer.

5. The reason why the electric valve opening and closing indicator light does not light up is: (1) the light bulb is broken; (2) The micro switch is not functioning properly. Countermeasure: (1) Replace the light bulb; (2) Replace the micro switch.

6. The reason why the motor cannot stop running when the electric valve reaches the position is: (1) poor switch action; (2) Reverse the phase sequence of three-phase AC power supply; (3) Error in connecting limit switch to control circuit; (4) Mechanical limit advance action. Countermeasure: (1) Replace the switch; (2) Adjust the three-phase AC phase sequence; (3) Adjust the wiring; (4) Adjust the mechanical limit again according to the adjustment instructions of the mechanical limit block.

6、 Working principle

The operating status of the fiber rotary filter includes filtration, backwashing, and sludge discharge.

(1) Filtration: The sewage flows into the filter tank by gravity, causing the filter disc to be completely submerged in the sewage. Install a water distribution weir in the filter tank to ensure uniform water distribution and low disturbance of incoming water. The sewage is filtered through a filter cloth, and the filtered liquid is collected through a hollow pipe before being discharged from the filter tank through an effluent weir. During the cleaning process, filtration is still ongoing. Therefore, the filtering process is continuous throughout the entire operation.

(2) Cleaning: Part of the sludge in the filtration is adsorbed onto the fiber filter cloth, gradually forming a sludge layer. As sludge accumulates on the filter cloth, the filtration resistance of the filter cloth increases, and the water level of the filter gradually rises. The pressure sensor in the filter tank monitors the liquid level changes in the tank. When the liquid level in the tank reaches the cleaning set value (high water level), the PLC can start the backwash pump and begin the cleaning process. The backwash time and cycle can be adjusted. The sludge on the filter cloth is discharged into the factory drainage system through a reverse suction device and a backwash water pump. During cleaning, the filter can continuously filter.

During the filtration process, the filter disc is in a static state, which is beneficial for the sedimentation of sludge at the bottom of the tank. During the cleaning period, the filter disc rotates at a speed of 0.5-1 revolutions per minute. The backwash water pump uses negative pressure to suction the surface of the filter cloth, removing the accumulated sludge particles on the filter cloth. The water inside the filter disc is simultaneously sucked from the inside out, which has a cleaning effect on the filter cloth. The instantaneous flushing area only accounts for about 1% of the total filtration turntable area, and the backwashing process is intermittent.

During normal cleaning, two filter discs are grouped together, and one set of filter discs is cleaned each time. The fiber disc filter tank is controlled by automatically switching the electric valve on the suction pump pipeline. During a complete cleaning process, the cleaning of each group alternates, and the suction pump works continuously. When the incoming water quality suddenly deteriorates and the backwash cycle is ≤ 15 minutes, the system will activate emergency measures and start 2-4 backwash pumps to backwash 2-4 sets of filter discs (4-8 discs) until the backwash cycle returns to normal.

(3) Sludge discharge: The fiber disc filter has a bucket shaped bottom under the filter disc, which is conducive to the collection of sludge at the bottom of the tank. The sedimentation at the bottom of the sludge tank reduces the amount of sludge on the filter cloth, which can prolong the filtration time and reduce the amount of backwash water. After a set period of time, the PLC starts the sludge discharge pump and returns the sludge to the factory drainage system through the perforated sludge discharge pipe at the bottom of the pool. Among them, the interval and duration of sludge discharge can be adjusted.

Fiber disc filter is particularly suitable for upgrading and renovating existing sewage treatment plants, which can increase the effluent from level B to level A. It has been widely used abroad and the technology is mature and reliable. In recent years, there have been many successful cases of application in China, and it is believed that they will be increasingly used in deep sewage treatment.

morefineRotating disk filterFor relevant information, please follow the company website (www.sdmzjscl. com)!