-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Instructions for use of automatic self-cleaning filter Self-cleaning filter is a kind of filter that directly intercepts impurities in water, removes suspended solids and particulate matter in water, reduces turbidity, purifies water quality, and reduces system fouling, algae, rust, etc.
Precision equipment for purifying water quality and protecting the normal operation of other equipment in the system.
The water enters the self-cleaning filter body from the water inlet.
Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and automatically discharge the sewage through the signal of the blowdown valve
.
1.
Introduction Self-cleaning filter is a widely used equipment in the water treatment industry.
Its simple design and good performance enable sewage to achieve the best filtering effect
.
The main components are: motor, electric control box, control pipeline, main pipe assembly, filter element assembly, 316L stainless steel brush, frame assembly, drive shaft, inlet and outlet connection flanges,
etc.
The self-cleaning filter overcomes many shortcomings of traditional filtration products, such as small dirt holding capacity, easy to be blocked by dirt, the filter part needs to be disassembled for cleaning, and the filter status cannot be monitored.
It has the function of filtering raw water and automatically cleaning and discharging the filter element.
In addition, the system provides uninterrupted water supply when cleaning and discharging sewage, which can monitor the working state of the filter and has a high degree of automation
.
It covers the needs of various filtration precisions from 10um to 3000um
.
Self-cleaning filter, operation and control can automatically clean and filter without any external energy, and automatically discharge sewage
.
Continuous flow during backwashing, the cleaning and filtration cycle can be adjusted, the default self-cleaning filtration time is 10-60/s, the water loss in cleaning and filtration only accounts for 0.
08-0.
6% of the filtered water; the filtration accuracy can reach 10-3000 microns; the working pressure can be Up to 1.
0-1.
6Mpa; flow per unit: 4-4160m/h
.
It can be installed vertically, horizontally, or upside down in any direction and in any position, and can be used for water filtration in various industries such as industry, agriculture, municipal power, electronics, medicine, food, printing and dyeing, construction, steel, metallurgy, papermaking, etc.
.
The self-cleaning filter is a kind of precision equipment that uses the filter screen to directly intercept impurities, floating objects, particles, etc.
in the liquid, while reducing the turbidity of the water, reducing dirt, and ensuring the normal operation and service life of the equipment behind it.
characteristics of sewage
.
2.
Working principle The water enters the filter from the water inlet.
First, the coarse filter element filters out the larger particles of impurities, and then reaches the fine filter screen.
After the fine particles are filtered out through the fine filter screen, the clean water is discharged from the water outlet
.
During the filtration process, the impurities in the inner layer of the fine filter gradually accumulate, and a pressure difference is formed between the inner and outer sides of the fine filter
.
When this differential pressure reaches the preset value, the automatic cleaning process will start: the drain valve opens, the hydraulic motor chamber and hydraulic cylinder of the main assembly release the pressure and discharge the water; the pressure in the hydraulic motor chamber and the sewage suction pipe drops significantly, due to the negative The dirt on the inner wall of the fine filter is absorbed by the suction nozzle, and then flows into the hydraulic motor chamber by the hydraulic motor, and is discharged by the sewage valve to form a sewage suction process
.
When the water flows through the hydraulic motor, it drives the sewage suction pipe to rotate, and the piston of the hydraulic cylinder drives the sewage suction pipe to move axially
.
The entire cleaning process will last for tens of seconds
.
The blowdown valve closes at the end of the wash, the increased water pressure returns the hydraulic cylinder piston to its original position and the filter begins to prepare for the next flush cycle
.
During the cleaning process, the normal filtration work of the filter is uninterrupted
.
The principle of automatic backwashing: As mentioned earlier, backwashing is realized by the opening of the hydraulic valve and the action of the hydraulic cylinder piston, and these are controlled by the backwashing controller
.
The backwash controller can accurately control the hydraulic valve and hydraulic cylinder according to the pressure difference from the inlet and outlet of the filter, and the power of the controller comes from the pressure of the pipeline itself
.
Features of self-cleaning filter: Uninterrupted water supply during backwashing, and the entire backwashing is achieved by cleaning every point of the suction nozzle
.
During backwashing, only a small local pressure changes between the suction nozzle and the fine filter, and the action of the collector and the hydraulic cylinder does not affect the normal water supply
.
At the same time, the amount of water consumed during backwashing is very small.
Take a filter with a flow rate of 300m3/h as an example: the backwash flow rate is 35-40m3/h, the backwash time is 7-15 seconds, and the backwash water volume for 80-160L
.
3.
Pretreatment steps Pretreatment of water filtration refers to the removal or reduction of suspended solids and colloids in water to a certain extent, and the process of meeting general water requirements is called water pretreatment
.
The commonly used methods of water filtration pretreatment are as follows: 1.
Precipitation uses natural precipitation (such as grit chambers), or softening of chemicals (such as adding chemicals), so that the sediment and large suspended solids in the water temporarily harden to form sediments.
subsidence
.
2.
Filtration The treated water is passed through the granular filter material, so that the impurities in the water are retained by the filter material and removed, usually through common equipment (such as: self-cleaning filter, automatic filter, backwash filter, brush filter) deal with
.
3.
Coagulation and clarification
.
Using the function of coagulant, the solid particles in the water are adsorbed by mutual contact, changing their size, shape and density to achieve separation from the water.
Fourth, installation requirements The selection of filter specifications should match the installation pipeline.
When the filter flow rate When the pipeline requirements cannot be met, two (or more) filters can be installed in parallel, or by-pass filtering
.
The filter should be installed as far as possible in the place to be protected by the system, and the low pressure of the inlet will affect the use, so it should also be installed in the place close to the pressure source
.
The filter should be installed in series in the pipeline system.
In order to ensure the uninterrupted water supply of the system when the system is shut down for maintenance, it is recommended to set up a bypass in the system, and the inlet and outlet of the filter and the bypass should be provided with a ball valve for cutting off
.
Where backflow is possible, a check valve should be installed at the filter outlet
.
When selecting models, pay attention that the temperature of the water flowing through the automatic self-cleaning filter does not exceed its adaptable temperature
.
The installation site has three-phase 380V power frequency alternating current (three-phase four-wire system)
.
The sewage pipe should not exceed 5 meters to avoid back pressure
.
Pay attention to filtration precision, pretreatment, and pressure in DC system, and use timing control type with caution in intermittent system
.
Reasonable selection of the installation environment, pay attention to waterproof, rain-proof, moisture-proof
.
The water inlet, water outlet and sewage outlet of the equipment should be equipped with valves (the sewage valve should be a quick valve)
.
The clear distance between the equipment is not less than 1500mm; the clear distance between the equipment and the wall is not less than 1000mm; the equipment and the surrounding should be left with a maintenance space of not less than 500mm
.
On the inlet and outlet pipelines of the equipment, pipeline brackets should be installed near the nozzle; brackets should be installed under the valve that is greater than or equal to DN150 directly connected to the nozzle of the container
.
V.
Precautions 1.
The self-cleaning filter can only be used according to the rated voltage/frequency indicated on the nameplate
.
2.
The filter should be maintained at regular intervals
.
Be sure to disconnect the power supply of the self-cleaning filter before cleaning and maintenance
.
3.
Please make sure that the wire plug is not wet during cleaning, otherwise the plug must be wiped dry before reconnecting the power supply
.
4.
Do not unplug the power cord with wet hands
.
5.
Self-cleaning filters are only used in indoor aquariums
.
6.
If the filter is damaged, especially when the power cord is damaged, it cannot be used
.
7.
Please make sure that the self-cleaning filter works in the correct water level, and the filter cannot be used without water
.
8.
Do not disassemble or repair without permission to avoid danger or damage to the body.
Repairs should be performed by professionals.
Center (2), then the sewage comes out from the inside through a fine mesh and enters the outlet (3)
.
The excess solids collect on the inner surface of the fine mesh, forming a filter cake that filters out even finer particles, creating a pressure differential
.
Once the pressure drop reaches a preset level, a purge cycle is activated by the control system by opening purge valve (4) atmospheric blowdown and closing optional control outlet valve (COV) (5)
.
Therefore, the pressure drop is in the hydraulic motor compartment and the assembled vacuum cleaner (6)
.
The pressure drop creates a backwash flow that absorbs dust on the screen, similar to a vacuum cleaner
.
(7) The backwash water passes through the nozzle (9) and the vacuum cleaner line before being discharged out of the hydraulic motor (8) hole
.
Water is expelled and the hydraulic motor causes the dust collector to rotate, similar to a sprayer
.
The pressure drop in the hydraulic motor compartment further forces the dust collector accessories to move axially (10) controlled by hydraulic pistons.
The combined movement ensures that each link clears the entire screen area
.
7.
Manufacturing process New product structure and function design, compact structure, and the created filter housing integral molding and processing technology to avoid various drips caused by welding of steel filter housings; Life; Proprietary filter element design and manufacturing technology, high-precision filter element will not be worn, pressure test will not be deformed, factory accuracy test meets user requirements; coarse and fine filter meshes are made of stainless steel welded mesh, sieve plate and sieve mesh to form an inner and outer double layer Structure; due to the active cleaning method of the filter element, its anti-interference ability is enhanced, the cleaning is thorough, and it is especially suitable for poor water quality conditions; Cooling water filtration of rolling mill, continuous casting machine and other systems, impurity filtration of high-pressure water phosphorus removal system Automobile: coating production line, widely used in automobiles, tractors, motorcycles, engine manufacturing water, and treatment systems Power plants: used for high-purity water in power plant boilers The precision pretreatment part of the preparation, the filtration of the cooling water of the generator and the sealing water, can be used as a side filter treatment when the water consumption of the system 13-4 is extremely large.
Parallel main processing, instead of filter material filtration, reduce the filter material filtration load, avoid a lot of flushing water consumption, and save costs Agricultural gardens and paper mills: In systems with sprinklers and nozzles, equipment blockage and wear caused by impurities should be reduced.
, Therefore, it is necessary to choose high-precision, high-automation filtration products for machinery, food or other: automatic and high-precision filtration of the system to prevent the cooling water system from clogging the mine: filter the underground spray water to ensure the normal operation of the system
.
Water supply and sewage treatment: used in pretreatment systems to improve system operation efficiency, widely used in drinking water treatment, building circulating water treatment, industrial circulating water treatment, sewage treatment, mining water treatment, golf course water treatment, construction, steel, Petroleum, chemical, electronics, power generation, textile, paper, food, sugar, pharmaceutical, plastic, automotive and other fields
.
Precision equipment for purifying water quality and protecting the normal operation of other equipment in the system.
The water enters the self-cleaning filter body from the water inlet.
Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and automatically discharge the sewage through the signal of the blowdown valve
.
1.
Introduction Self-cleaning filter is a widely used equipment in the water treatment industry.
Its simple design and good performance enable sewage to achieve the best filtering effect
.
The main components are: motor, electric control box, control pipeline, main pipe assembly, filter element assembly, 316L stainless steel brush, frame assembly, drive shaft, inlet and outlet connection flanges,
etc.
The self-cleaning filter overcomes many shortcomings of traditional filtration products, such as small dirt holding capacity, easy to be blocked by dirt, the filter part needs to be disassembled for cleaning, and the filter status cannot be monitored.
It has the function of filtering raw water and automatically cleaning and discharging the filter element.
In addition, the system provides uninterrupted water supply when cleaning and discharging sewage, which can monitor the working state of the filter and has a high degree of automation
.
It covers the needs of various filtration precisions from 10um to 3000um
.
Self-cleaning filter, operation and control can automatically clean and filter without any external energy, and automatically discharge sewage
.
Continuous flow during backwashing, the cleaning and filtration cycle can be adjusted, the default self-cleaning filtration time is 10-60/s, the water loss in cleaning and filtration only accounts for 0.
08-0.
6% of the filtered water; the filtration accuracy can reach 10-3000 microns; the working pressure can be Up to 1.
0-1.
6Mpa; flow per unit: 4-4160m/h
.
It can be installed vertically, horizontally, or upside down in any direction and in any position, and can be used for water filtration in various industries such as industry, agriculture, municipal power, electronics, medicine, food, printing and dyeing, construction, steel, metallurgy, papermaking, etc.
.
The self-cleaning filter is a kind of precision equipment that uses the filter screen to directly intercept impurities, floating objects, particles, etc.
in the liquid, while reducing the turbidity of the water, reducing dirt, and ensuring the normal operation and service life of the equipment behind it.
characteristics of sewage
.
2.
Working principle The water enters the filter from the water inlet.
First, the coarse filter element filters out the larger particles of impurities, and then reaches the fine filter screen.
After the fine particles are filtered out through the fine filter screen, the clean water is discharged from the water outlet
.
During the filtration process, the impurities in the inner layer of the fine filter gradually accumulate, and a pressure difference is formed between the inner and outer sides of the fine filter
.
When this differential pressure reaches the preset value, the automatic cleaning process will start: the drain valve opens, the hydraulic motor chamber and hydraulic cylinder of the main assembly release the pressure and discharge the water; the pressure in the hydraulic motor chamber and the sewage suction pipe drops significantly, due to the negative The dirt on the inner wall of the fine filter is absorbed by the suction nozzle, and then flows into the hydraulic motor chamber by the hydraulic motor, and is discharged by the sewage valve to form a sewage suction process
.
When the water flows through the hydraulic motor, it drives the sewage suction pipe to rotate, and the piston of the hydraulic cylinder drives the sewage suction pipe to move axially
.
The entire cleaning process will last for tens of seconds
.
The blowdown valve closes at the end of the wash, the increased water pressure returns the hydraulic cylinder piston to its original position and the filter begins to prepare for the next flush cycle
.
During the cleaning process, the normal filtration work of the filter is uninterrupted
.
The principle of automatic backwashing: As mentioned earlier, backwashing is realized by the opening of the hydraulic valve and the action of the hydraulic cylinder piston, and these are controlled by the backwashing controller
.
The backwash controller can accurately control the hydraulic valve and hydraulic cylinder according to the pressure difference from the inlet and outlet of the filter, and the power of the controller comes from the pressure of the pipeline itself
.
Features of self-cleaning filter: Uninterrupted water supply during backwashing, and the entire backwashing is achieved by cleaning every point of the suction nozzle
.
During backwashing, only a small local pressure changes between the suction nozzle and the fine filter, and the action of the collector and the hydraulic cylinder does not affect the normal water supply
.
At the same time, the amount of water consumed during backwashing is very small.
Take a filter with a flow rate of 300m3/h as an example: the backwash flow rate is 35-40m3/h, the backwash time is 7-15 seconds, and the backwash water volume for 80-160L
.
3.
Pretreatment steps Pretreatment of water filtration refers to the removal or reduction of suspended solids and colloids in water to a certain extent, and the process of meeting general water requirements is called water pretreatment
.
The commonly used methods of water filtration pretreatment are as follows: 1.
Precipitation uses natural precipitation (such as grit chambers), or softening of chemicals (such as adding chemicals), so that the sediment and large suspended solids in the water temporarily harden to form sediments.
subsidence
.
2.
Filtration The treated water is passed through the granular filter material, so that the impurities in the water are retained by the filter material and removed, usually through common equipment (such as: self-cleaning filter, automatic filter, backwash filter, brush filter) deal with
.
3.
Coagulation and clarification
.
Using the function of coagulant, the solid particles in the water are adsorbed by mutual contact, changing their size, shape and density to achieve separation from the water.
Fourth, installation requirements The selection of filter specifications should match the installation pipeline.
When the filter flow rate When the pipeline requirements cannot be met, two (or more) filters can be installed in parallel, or by-pass filtering
.
The filter should be installed as far as possible in the place to be protected by the system, and the low pressure of the inlet will affect the use, so it should also be installed in the place close to the pressure source
.
The filter should be installed in series in the pipeline system.
In order to ensure the uninterrupted water supply of the system when the system is shut down for maintenance, it is recommended to set up a bypass in the system, and the inlet and outlet of the filter and the bypass should be provided with a ball valve for cutting off
.
Where backflow is possible, a check valve should be installed at the filter outlet
.
When selecting models, pay attention that the temperature of the water flowing through the automatic self-cleaning filter does not exceed its adaptable temperature
.
The installation site has three-phase 380V power frequency alternating current (three-phase four-wire system)
.
The sewage pipe should not exceed 5 meters to avoid back pressure
.
Pay attention to filtration precision, pretreatment, and pressure in DC system, and use timing control type with caution in intermittent system
.
Reasonable selection of the installation environment, pay attention to waterproof, rain-proof, moisture-proof
.
The water inlet, water outlet and sewage outlet of the equipment should be equipped with valves (the sewage valve should be a quick valve)
.
The clear distance between the equipment is not less than 1500mm; the clear distance between the equipment and the wall is not less than 1000mm; the equipment and the surrounding should be left with a maintenance space of not less than 500mm
.
On the inlet and outlet pipelines of the equipment, pipeline brackets should be installed near the nozzle; brackets should be installed under the valve that is greater than or equal to DN150 directly connected to the nozzle of the container
.
V.
Precautions 1.
The self-cleaning filter can only be used according to the rated voltage/frequency indicated on the nameplate
.
2.
The filter should be maintained at regular intervals
.
Be sure to disconnect the power supply of the self-cleaning filter before cleaning and maintenance
.
3.
Please make sure that the wire plug is not wet during cleaning, otherwise the plug must be wiped dry before reconnecting the power supply
.
4.
Do not unplug the power cord with wet hands
.
5.
Self-cleaning filters are only used in indoor aquariums
.
6.
If the filter is damaged, especially when the power cord is damaged, it cannot be used
.
7.
Please make sure that the self-cleaning filter works in the correct water level, and the filter cannot be used without water
.
8.
Do not disassemble or repair without permission to avoid danger or damage to the body.
Repairs should be performed by professionals.
Center (2), then the sewage comes out from the inside through a fine mesh and enters the outlet (3)
.
The excess solids collect on the inner surface of the fine mesh, forming a filter cake that filters out even finer particles, creating a pressure differential
.
Once the pressure drop reaches a preset level, a purge cycle is activated by the control system by opening purge valve (4) atmospheric blowdown and closing optional control outlet valve (COV) (5)
.
Therefore, the pressure drop is in the hydraulic motor compartment and the assembled vacuum cleaner (6)
.
The pressure drop creates a backwash flow that absorbs dust on the screen, similar to a vacuum cleaner
.
(7) The backwash water passes through the nozzle (9) and the vacuum cleaner line before being discharged out of the hydraulic motor (8) hole
.
Water is expelled and the hydraulic motor causes the dust collector to rotate, similar to a sprayer
.
The pressure drop in the hydraulic motor compartment further forces the dust collector accessories to move axially (10) controlled by hydraulic pistons.
The combined movement ensures that each link clears the entire screen area
.
7.
Manufacturing process New product structure and function design, compact structure, and the created filter housing integral molding and processing technology to avoid various drips caused by welding of steel filter housings; Life; Proprietary filter element design and manufacturing technology, high-precision filter element will not be worn, pressure test will not be deformed, factory accuracy test meets user requirements; coarse and fine filter meshes are made of stainless steel welded mesh, sieve plate and sieve mesh to form an inner and outer double layer Structure; due to the active cleaning method of the filter element, its anti-interference ability is enhanced, the cleaning is thorough, and it is especially suitable for poor water quality conditions; Cooling water filtration of rolling mill, continuous casting machine and other systems, impurity filtration of high-pressure water phosphorus removal system Automobile: coating production line, widely used in automobiles, tractors, motorcycles, engine manufacturing water, and treatment systems Power plants: used for high-purity water in power plant boilers The precision pretreatment part of the preparation, the filtration of the cooling water of the generator and the sealing water, can be used as a side filter treatment when the water consumption of the system 13-4 is extremely large.
Parallel main processing, instead of filter material filtration, reduce the filter material filtration load, avoid a lot of flushing water consumption, and save costs Agricultural gardens and paper mills: In systems with sprinklers and nozzles, equipment blockage and wear caused by impurities should be reduced.
, Therefore, it is necessary to choose high-precision, high-automation filtration products for machinery, food or other: automatic and high-precision filtration of the system to prevent the cooling water system from clogging the mine: filter the underground spray water to ensure the normal operation of the system
.
Water supply and sewage treatment: used in pretreatment systems to improve system operation efficiency, widely used in drinking water treatment, building circulating water treatment, industrial circulating water treatment, sewage treatment, mining water treatment, golf course water treatment, construction, steel, Petroleum, chemical, electronics, power generation, textile, paper, food, sugar, pharmaceutical, plastic, automotive and other fields
.
