High rate fiber dis filter /fiber drum filter /fiber filter for waste water treatment
I. Overview Fiber filter cloth disc filter is one of the advanced filters, and this technology has been adopted in many sewage plants. The filter cloth turntable filter has good treatment effect, good effluent water quality, stable effluent water quality, reliable equipment operation and high degree of automation. It is an ideal reclaimed water process filtration system equipment. The fiber filter cloth rotary disc filter is mainly used for cooling circulating water treatment and reuse of wastewater after advanced treatment. As cooling water and circulating water after filtration, reuse: Inlet water quality SS≤60mg / L, Outlet water quality SS≤10mg / L. It is used for the advanced treatment of sewage. After being installed in the conventional activated sludge method, aeration method, SBR system, oxidation ditch system, and oxidation pond system, it can be used in the following areas: 1
Removal of total suspended solids 2 Removal of phosphorus in combination with adding agents Removes heavy metals. II Design parameters of fiber turntable filter Project technical parameters Filter type filter cloth microfiltration Filter disk diameter about DN1000,DN1500,DN2000mm,DN2500 or DN3000 Filter cloth mesh diameter ≤10 microns Filter cloth material Fibre filter cloth (acid and alkali resistance) Effective filtering area 5.0 m2 (single disc) Water quality conditions before filtration Sewage secondary treatment effluent (guaranteed) Inlet water quality SS≤30mg / l (instantaneous peak 60mg / l) Quality of effluent water SS≤5mg / l, turbidity ≤2NTU (when inlet water SS≥50mg / l, the filtration efficiency of suspended matter is 70%) Medium temperature PH 6 ~ 9 Operating costs 0.01 yuan / ton of water (excluding depreciation costs) Thridthe structure of the fiber turntable filter The fiber rotary disc filter is mainly composed of (1) box body, (2) filter disc, (3) backwash mechanism, (4) mud discharge structure, (5) central tube, (6) drive mechanism, (7) electrical control, (8) Composed of pump and valve mechanism. 1. Box: Welding of carbon steelOR SS304, imported anticorrosive paint inside, eXpoxy zinc-rich anticorrosive paint for exterior, compact box, light weight, small footprint. The auxiliary tank can adjust the water level drop. 2. Filter disc: Each filter disc is composed of 6 independent pieces, covered with filter cloth and substrate. The trap's depth stores trapped particles, reducing head loss during normal operation. Each filter cloth filter disk has at least 5.2m2, 13m2 effective immersion filtering area, and can be easily taken out of the device. 3. Backwashing mechanism: It consists of backwashing suction port, pipe, backwashing suction port bracket and other components. Used for backwash of filter cloth. 4. Mud discharging mechanism: It consists of mud discharging suction mouth, pipe, mud suction suction bracket and other components. Used to clean the sludge from the bottom of the filter. 5. Central tube: The treated water flows into the sub-tank through the hollow tube after being processed, and the hollow tube can transport the middle water and the filter disk can be driven to rotate. 6. Driving mechanism: It consists of reducer, sprocket, chain, etc., which is used to drive the central tube and filter disc to rotate. 7.Electrical system: It is composed of electric control box, PLC, touch screen, liquid level control and other electric control components. It is used to control the process of backwashing and sludge discharge, make it run automatically, and can adjust the interval of backwashing and sludge discharge time. . 8. Pump and valve mechanism: It consists of centrifugal pump, pipeline and electric ball valve, which are used for backwashing and mud discharging. Fourth, working principle The rotary disc type micro-filter process is composed of a central drum, a rotary disc, a backwash system, and supporting control electrical systems. The turntable is fixed around the center drum and has a communication hole with the center drum. Raw water (sewage) flows into the drum from the opening of one end of the central drum, and enters each of the turntables through communication holes. Filter cloths are installed on both sides of the turntable, and the filter cloth is woven with stainless steel or polyester wires. 10 μm. After the raw water is filtered through the filter cloth, clean water flows out of the filter cloth and is discharged out of the system through the filtered water outlet. With the progress of filtration, the trapped impurities on the inside of the filter cloth continue to increase, the filtration pressure difference increases, and the amount of water passing through the filter cloth decreases. When the impurities accumulate to a certain level and the liquid level of the central drum reaches the set value, backwashing is required to backwash the impurities accumulated inside the filter cloth. The backwash water pump draws the clear water that passes through the filter cloth, sprays it on the outside of the filter cloth, and flushes out the trapped impurities on the inside of the filter cloth. After the flushing, the sewage falls into the drip tray and then is discharged out of the device. During the backwash, the turntable rotates, and the backwash water is sprayed with filter cloths of different angles until the turntable rotates once. All the filter cloths are cleaned, the backwash is stopped, and the static filtration process is re-entered until the backwash is performed again. The rotary disc type micro-filter adopts imported high-efficiency filter cloth as the filter medium. The filter cloth is woven from the metal wires of special warp and weft threads. It has the characteristics of high precision, high flux, high strength, and strong slag accumulation. High filtration accuracy can reach 10um, the unit area flux can reach 76L / s • m2 (@ 300mm hydrostatic head), and it can withstand the backwash pressure of 7.5bar, effectively improving the backwash effect. With the progress of filtration, the trapped impurities on the inside of the filter cloth continue to increase, the filtration pressure difference increases, and the amount of water passing through the filter cloth decreases. When the impurities accumulate to a certain level and the liquid level of the central drum reaches the set value, backwashing is required to backwash the impurities accumulated inside the filter cloth. The backwash water pump draws the clear water that passes through the filter cloth, sprays it on the outside of the filter cloth, and flushes out the trapped impurities on the inside of the filter cloth. After the flushing, the sewage falls into the drip tray and then is discharged out of the device. During the backwash, the turntable rotates, and the backwash water is sprayed with filter cloths of different angles until the turntable rotates once. All the filter cloths are cleaned, the backwash is stopped, and the static filtration process is re-entered until the backwash is performed again. The raw water enters the center drum from the central water inlet pipe, and enters the filter disc fixed around the drum through the water distribution hole of the center drum. The filter cloth woven with stainless steel or polyester wire is installed on both sides of the filter disc. After the raw water is filtered through the filter cloth, the clear water flows out of the filter disc and is discharged from the water outlet weir. With the continuous filtering, the impurities trapped on the inside of the filter cloth increase continuously, the clear water flowing out of the filter disc gradually decreases, and the water level in the disc keeps rising. When the liquid level in the filter disc reaches the set value, the drum starts to rotate. The high-pressure water provided by the backwashing device automatically flushes the surface of the filter disc, and the impurities then fall into the dirt collection tank fixed inside the filter and enter the sludge pipe for external discharge. With the continuous rinsing, the water level in the pan continues to drop. When the set liquid level is reached, the backwash automatically stops, the drum also stops rotating, and the system re-enters the static filtration process. The backwashing stage does not affect the operation of the device. The filter operates in continuous water inflow, staged backwash, and continuous water outflow. different angles until the turntable rotates once. All the filter cloths are cleaned, the backwash is stopped, and the static filtration process is re-entered until the backwash is performed again. The raw water enters the center drum from the central water inlet pipe, and enters the filter disc fixed around the drum through the water distribution hole of the center drum. The filter cloth woven with stainless steel or polyester wire is installed on both sides of the filter disc. After the raw water is filtered through the filter cloth, the clear water flows out of the filter disc and is discharged from the water outlet weir. With the continuous filtering, the impurities trapped on the inside of the filter cloth increase continuously, the clear water flowing out of the filter disc gradually decreases, and the water level in the disc keeps rising. When the liquid level in the filter disc reaches the set value, the drum starts to rotate. The high-pressure water provided by the backwashing device automatically flushes the surface of the filter disc, and the impurities then fall into the dirt collection tank fixed inside the filter and enter the sludge pipe for external discharge. With the continuous rinsing, the water level in the pan continues to drop. When the set liquid level is reached, the backwash automatically stops, the drum also stops rotating, and the system re-enters the static filtration process. The backwashing stage does not affect the operation of the device. The filter operates in continuous water inflow, staged backwash, and continuous water outflow. I. Overview Fiber filter cloth disc filter is one of the advanced filters, and this technology has been adopted in many sewage plants. The filter cloth turntable filter has good treatment effect, good effluent water quality, stable effluent water quality, reliable equipment operation and high degree of automation. It is an ideal reclaimed water process filtration system equipment. The fiber filter cloth rotary disc filter is mainly used for cooling circulating water treatment and reuse of wastewater after advanced treatment. As cooling water and circulating water after filtration, reuse: Inlet water quality SS≤60mg / L, Outlet water quality SS≤10mg / L. It is used for the advanced treatment of sewage. After being installed in the conventional activated sludge method, aeration method, SBR system, oxidation ditch system, and oxidation pond system, it can be used in the following areas: 1 Removal of total suspended solids 2 Removal of phosphorus in combination with adding agents Removes heavy metals. II Design parameters of fiber turntable filter Project technical parameters Filter type filter cloth microfiltration Filter disk diameter about DN1000,DN1500,DN2000mm,DN2500 or DN3000 Filter cloth mesh diameter ≤10 microns Filter cloth material Fibre filter cloth (acid and alkali resistance) Effective filtering area 5.0 m2 (single disc) Water quality conditions before filtration Sewage secondary treatment effluent (guaranteed) Inlet water quality SS≤30mg / l (instantaneous peak 60mg / l) Quality of effluent water SS≤5mg / l, turbidity ≤2NTU (when inlet water SS≥50mg / l, the filtration efficiency of suspended matter is 70%) Medium temperature PH 6 ~ 9 Operating costs 0.01 yuan / ton of water (excluding depreciation costs) Thridthe structure of the fiber turntable filter The fiber rotary disc filter is mainly composed of (1) box body, (2) filter disc, (3) backwash mechanism, (4) mud discharge structure, (5) central tube, (6) drive mechanism, (7) electrical control, (8) Composed of pump and valve mechanism. 1. Box: Welding of carbon steelOR SS304, imported anticorrosive paint inside, eXpoxy zinc-rich anticorrosive paint for exterior, compact box, light weight, small footprint. The auxiliary tank can adjust the water level drop. 2. Filter disc: Each filter disc is composed of 6 independent pieces, covered with filter cloth and substrate. The trap's depth stores trapped particles, reducing head loss during normal operation. Each filter cloth filter disk has at least 5.2m2, 13m2 effective immersion filtering area, and can be easily taken out of the device. 3. Backwashing mechanism: It consists of backwashing suction port, pipe, backwashing suction port bracket and other components. Used for backwash of filter cloth. 4. Mud discharging mechanism: It consists of mud discharging suction mouth, pipe, mud suction suction bracket and other components. Used to clean the sludge from the bottom of the filter. 5. Central tube: The treated water flows into the sub-tank through the hollow tube after being processed, and the hollow tube can transport the middle water and the filter disk can be driven to rotate. 6. Driving mechanism: It consists of reducer, sprocket, chain, etc., which is used to drive the central tube and filter disc to rotate. 7.Electrical system: It is composed of electric control box, PLC, touch screen, liquid level control and other electric control components. It is used to control the process of backwashing and sludge discharge, make it run automatically, and can adjust the interval of backwashing and sludge discharge time. . 8. Pump and valve mechanism: It consists of centrifugal pump, pipeline and electric ball valve, which are used for backwashing and mud discharging. Fourth, working principle The rotary disc type micro-filter process is composed of a central drum, a rotary disc, a backwash system, and supporting control electrical systems. The turntable is fixed around the center drum and has a communication hole with the center drum. Raw water (sewage) flows into the drum from the opening of one end of the central drum, and enters each of the turntables through communication holes. Filter cloths are installed on both sides of the turntable, and the filter cloth is woven with stainless steel or polyester wires. 10 μm. After the raw water is filtered through the filter cloth, clean water flows out of the filter cloth and is discharged out of the system through the filtered water outlet. With the progress of filtration, the trapped impurities on the inside of the filter cloth continue to increase, the filtration pressure difference increases, and the amount of water passing through the filter cloth decreases. When the impurities accumulate to a certain level and the liquid level of the central drum reaches the set value, backwashing is required to backwash the impurities accumulated inside the filter cloth. The backwash water pump draws the clear water that passes through the filter cloth, sprays it on the outside of the filter cloth, and flushes out the trapped impurities on the inside of the filter cloth. After the flushing, the sewage falls into the drip tray and then is discharged out of the device. During the backwash, the turntable rotates, and the backwash water is sprayed with filter cloths of different angles until the turntable rotates once. All the filter cloths are cleaned, the backwash is stopped, and the static filtration process is re-entered until the backwash is performed again. The rotary disc type micro-filter adopts imported high-efficiency filter cloth as the filter medium. The filter cloth is woven from the metal wires of special warp and weft threads. It has the characteristics of high precision, high flux, high strength, and strong slag accumulation. High filtration accuracy can reach 10um, the unit area flux can reach 76L / s • m2 (@ 300mm hydrostatic head), and it can withstand the backwash pressure of 7.5bar, effectively improving the backwash effect. With the progress of filtration, the trapped impurities on the inside of the filter cloth continue to increase, the filtration pressure difference increases, and the amount of water passing through the filter cloth decreases. When the impurities accumulate to a certain level and the liquid level of the central drum reaches the set value, backwashing is required to backwash the impurities accumulated inside the filter cloth. The backwash water pump draws the clear water that passes through the filter cloth, sprays it on the outside of the filter cloth, and flushes out the trapped impurities on the inside of the filter cloth. After the flushing, the sewage falls into the drip tray and then is discharged out of the device. During the backwash, the turntable rotates, and the backwash water is sprayed with filter cloths of different angles until the turntable rotates once. All the filter cloths are cleaned, the backwash is stopped, and the static filtration process is re-entered until the backwash is performed again. The raw water enters the center drum from the central water inlet pipe, and enters the filter disc fixed around the drum through the water distribution hole of the center drum. The filter cloth woven with stainless steel or polyester wire is installed on both sides of the filter disc. After the raw water is filtered through the filter cloth, the clear water flows out of the filter disc and is discharged from the water outlet weir. With the continuous filtering, the impurities trapped on the inside of the filter cloth increase continuously, the clear water flowing out of the filter disc gradually decreases, and the water level in the disc keeps rising. When the liquid level in the filter disc reaches the set value, the drum starts to rotate. The high-pressure water provided by the backwashing device automatically flushes the surface of the filter disc, and the impurities then fall into the dirt collection tank fixed inside the filter and enter the sludge pipe for external discharge. With the continuous rinsing, the water level in the pan continues to drop. When the set liquid level is reached, the backwash automatically stops, the drum also stops rotating, and the system re-enters the static filtration process. The backwashing stage does not affect the operation of the device. The filter operates in continuous water inflow, staged backwash, and continuous water outflow.
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