How to get uninterrupted filtration?

The parallel connection of bag filter can ensure the continuous filtration or increase the flow rate.

Alternate replacement of filter bags can maintain continuous filtration.

Gradual filtration

Installation of bag filter in series can realize the filtration gradually.

If gradual filtration is used as the pre-filtration of high precision filtration, the cost of filtration will be reduced a lot.

Also, we can combine sand filtration and other filtration method with bag filter together, to improve the filtration efficiency and reduce the filtration cost.

Combine self cleaning machine, centrifugal filter and bag filter together. We can use it separately, and also can install this with other filters in series, to get best result.

When to replace filter bags?

There are two methods of checking when to replace filter bags.

One is determining the time of replacement of filter bags according to experiences.

The other one is that install pressure gauge at the inlet and outlet of bag filter. Determine the time of replacement of filter bags according to the pressure difference between the inlet and outlet. Normally, the pressure drop which one filter bag can be withstood is 0.5-1kg/cm2. When pressure difference is up to this number area, please replace the filter bags.

How to select most suitable dust collector filter bags?

Select suitable dust collector filter bags which are with best cost performance according to working condition

According to working temperature:

When temperature is less than 130 degree C, choose normal temperature dust filter bags, when temperature is 130-260 degree C, choose high temperature dust filter bags.

According to gas moisture:

Dust gas is divided into three states according to relative humidity.

Dry gas: relative humidity is below 30%

Normal gas: relative humidity is between 30%-80%

High humidity gas: relative humidity above 80%

When gas humidity is too high, shall use ptfe laminated and water repellent filter bags.

According to chemical properties of dust gas:

Acid, alkali, oxidant, organic solvents and other chemical components are contained in different of kinds of kiln flue gas and chemical waste gas. Therefore, shall select suitable dust collector filter bags which are with acid, alkali and oxidation resistance according to the chemical composition contained in the gas.

Select suitable dust filter bags according to special property of dust

According to wet ability and adhesiveness of dust:

If the dust is hygroscopic and has a strong adhesion, shall select dust filter bags which are treated with ptfe lamination/membrane and water proof or water repellent.

According to flammability and charging of dust: when some dusts are flammable, flame retardant dust filter bags should be selected. Antistatic dust filter bag is specially used for charged dust.

Select dust filter bag according to the dust cleaning mode of dust collector bag house

Shaking type dust collector bag house:

Shall select dust filter bags with thin, smooth and soft material which is conducive to the transmission of vibration waves.

Air reversed dust collector bag house:

Shall select dust filter bag with soft material which is with stable structure and good wear resistance.

Pulse jet bag filter: normally use round dust filter bag with support filter bag cage/frame. And the filter bag materials shall be thick, wear resistant and with strong tensile resistance.

Cooling of dust collector bag house high temperature gas

When use dust collector bag house to treat high temperature gas, shall select high temperature resistant filter bags/sleeve materials. Right now, woven fiberglass is used most often. It is can be working under continuous temperature 260 degree C. But when the temperature of the flue gas exceeds the allowable temperature of the filter material, before entering the bag type dust collector, it is generally required to be cooled (should be kept above the dew point temperature), and there are three kinds of cooling methods:

1, natural cooling: lengthening the length of the pipe conveying gas, The gas is cooled by the natural convection and radiation heat of the pipe and the surrounding air. The utility model is more used for metal pipes, and can be used as s type for making distance longer. The method is simple, and the cooling effect is weak, and the occupation space is larger.

2, water cooling: sparing cooling water into the high temperature flue gas directly, it is also called cooling tower. Section air flow of wind cooling tower is usually 2-3.5 m / s. To prevent the water into the dust collector bag filter, can use the temperature control system to regulate the amount of water.

3, cooling by mixing cold air: inhalation limited amount of nearby air, it means mixing nearby air with high temperature gas to reduce the temperature.

When the trap is used for catching high temperature smoke, the ambient air can be absorbed at the same time. This method is simple, but this will increase the filtration air volume.

how to measure filter bag support cage professionally?

When to replace filter bags?

There are two methods of checking when to replace filter bags.

One is determining the time of replacement of filter bags according to experiences.

The other one is that install pressure gauge at the inlet and outlet of bag filter. Determine the time of replacement of filter bags according to the pressure difference between the inlet and outlet. Normally, the pressure drop which one filter bag can be withstood is 0.5-1kg/cm2. When pressure difference is up to this number area, please replace the filter bags.

Types of liquid filter bags

There are many types of liquid filter bags, the manufacturing method includes 5 needle stitching/sewn filter bags, welded filter bags.

The common material of liquid filter bags: monofilament nylon mesh filter bags, stainless steel liquid filter bags, PP felt filter bags, PE felt filter bags, filter bags with plastic top, filter bags with metal ring.

About production standard of filter bag cages

Filter bag cages require the vertical wire and supporting rings are uniform distributed and with enough strength and stiffness, so that can be withstand the pressure during dust cleaning of filter bags. And also avoid the damage and deformation caused by collision and impact during delivery and installation of filter bag cages.

All the welding of filter bag cages must be strong. Loose welding and rosin welding joints are not allowed.

The surface of filter bag cages which will be in touch of filter bags shall be smooth, welding scars, sags and rag are not allowed.

The tension spring type of filter bag cage should have enough ring number and elasticity, and the spacing should be uniform after pulling out.

The surface of the filter bag cages must be treated with corrosion protection and galvanized according to different needs. Spraying or painting, such as for high temperature and corrosion protection, shall meet the requirement of using temperature.

Dust filter bag cage material Q235 or 20 steel wire, wire diameter 3mm-4mm, supporting ring distance 150cm--250cm.

The verticality of the dust bag cage is 6M plus or minus 1mm.

The dust bag cages include one complete cage, segmented cage such two section or three sections.

Tips of filter bag cage production process

To select and purchase good and reliable filter bag cage manufacturer, it is necessary to know about filter bag cage production process.

Filter bag cage is one of key parts of dust collector bag house. Production process is key factor of working performance of filter bag cages. Good production process will take good working performance for filter bag cages.

INDRO is using hard drawn steel wire, stainless steel wire to make filter bag cages.

Hard steel wire and stainless steel wire which are used in INDRO are with excellent strength and stiffness. INDRO is using professional filter bag cage high frequency welding machine to do welding fabrication once.

The filter bag cage production process is as followings: wire drawing, straightening and cutting, supporting ring, support ring welding, welding, wear skeleton tube, welding bottom, pickling, electroplating, drying. Because carbon steel wire or stainless steel wire has a lot of oil pollution, before use, pickling and phosphating should be carried out for decontamination and rust removal.

Immerse proceeded filter bag cage into oil removing tank for 15 minutes to remove the grease on the surface of filter bag cages.

Take filter bag cages out of oil removing tank, put filter bag cages into cleaning tank for soaking, this is to remove the deoiling agent.

Take the filter bag cages out of cleaning tank, put filter bag cages into rust removing tank for rust removing. This is to remove the metal oxide layer on the bag cage, so as to enhance the adsorbability.

Take the filter bag cages out of rust moving tank, put filter bag cages into phosphating bath for doing phosphating and enhacing the adhesion of the filter bag cage surface.

Put the proceeded filter bag cage into the oven for drying for 20 minutes, set the temperature of oven at 2100 degree C, this is to remove the moisture of filter bag cages and keep the filter bag cage dry.

After drying, do spray and coating of filter bag cages. The thickness of coating is 60-100micron.

Put the painted filter bag cages into oven, set the temperature at 2220 degree C, do baking for 120 minutes. Then keep temperature at 2220 degree C, do heating setting up for 30minutes. Making filter bag cage cool down, then filter bags cages are finished.

INDRO controls each process of filter bag cages production very strictly, so that our filter bags cages are with excellent working performance and longer using life.

Filter Bags, Replacement Filter Bags, Dust Collector Bag Supplies

As filtration bag manufacturer, factory direct supplier, and distributor of replacement filter bags and products experts, Shanghai INDRO has spent nearly 20 years designing and fabricating optimized custom dust bags and sleeves to go on collectors ranging from normal temperature filter bags to high temperature resistant filter bags.

INDRO offers a complete line of superior quality replacement and custom filter bags designed to fit most manufacturers dust collector baghouses.

We manufacture a complete line of replacement dust collector bags and cartridges for every industry. 

Our dust collector filter bags and cartridges are available in cotton, wool and synthetics like polyester, polypropylene and Teflon felts.

For unusual conditions, we can select a fabric or felt. Fabric and felt dust collector bags help to guarantee maximum service life, efficiency and economy.

To assure product consistency, we check every lot so they meet our specifications for weight, thickness, permeability and strength.

We now can offer PTFE membrane products for high efficiency applications.

Bag Filters - Baghouse Dust Collectors – Shanghai INDRO

Shanghai INDRO continually raises the bar in bag filter technology, providing the widest range of bag filters for any baghouse dust collector.

We make filter bags to fit most styles and types of baghouses and other dust collection systems.  Filter bags come in a wide range of fabrics, coatings, finishes, sizes and configurations. 

Our line of PTFE membrane bags are designed to double bag life, lower energy costs, reduce wear on other parts of the collector, reduce plant down time, and save maintenance costs to help keep your dust collector and your plant performing at its peak.

Media (fabric) options include: Polyester, Duo Density, Polypropylene, Fiberglass, Aramid/Nomex, PPS, P84, PTFE (Teflon).

Medias are available in various fabric weights and treatments such as singed, glazed, PTFE, anti-static, fire-retardant, oleophobic, acid resistant and more.

Configurations (bag construction) include snap band top, A-hanger, raw edge, grommet, cord, loop, strap, disc bottom, disc w/wear strip, flange, hem, sewn flat, envelope, compression cap, and more.

Tips of Monofilament Mesh Filter Bag (NMO)

Monofilament Mesh FilterBag (NMO) is constructed using a woven fabric. Each thread is a single filament, providing excellent strength with no fiber migration. ... The monofilament yarn used in the fabric is extremely abrasion resistant, resistant to a broad range of chemicals.

The INDRO monofilament nylon mesh filter bags are all sewn. An additional bias tape is used as standard on the finer grades of NMO (nylon) and PEMO (polyester).

NMO is a two-dimensional square of woven mesh fabric used for lower solids or higher accuracy screening and classification of solids. Made from a smooth uniform, one piece extruded thread woven into a screen with high accuracy and consistency. Used for exact separation. NMO filter bag is defined by a hole size in microns, i.e. 25, 50, 75, 100, 120, 150, 175, 200, 250, 300, 400, 500, 600, 800.

Federer: 1 of Big 4 left at Wimbledon

Switzerland's Roger Federer celebrates winning the quarterfinal match against Canada's Milos Raonic at Wimbledon, London on July 12. [Photo/Agencies] Roger Federer is in the Wimbledon semifinals for the 12th time. The seven-time champion at the All-England Club beat Milos Raonic 6-4, 6-2, 7-6 (4) on Center Court. Federer will next face Tomas Berdych on Friday in the semifinals. Berdych advanced when Novak Djokovic retired from their match with an injury. Raonic beat Federer in the semifinals last year, and then lost to Andy Murray in the final. "When you see that they're there for you, it's a bit of an unusual feeling. I'm very touched, actually, to have so much support," Federer said. "I never would have imagined when I was younger that I would have experienced this."Less than a month from his 36th birthday, Federer is still giving 'em what they want. When Wimbledon began, Federer and the rest of the Big 4 — Novak Djokovic, Andy Murray and Rafael Nadal — had accounted for each of the past 14 men's singles championships. Now, as the tournament heads to the semifinals on Friday, only Federer remains.

Call him the Big 1.

"It's nice to see different guys, maybe, but I'm happy that my dream run continues," Federer said, "and we'll now see what happens next."Federer's path through the draw has been impressive, to say the least.

He has won every set he's played this fortnight, the only semifinalist who can make that claim.

He has won 63 of 66 service games. He has faced only 14 break points. He has made only 49 unforced errors, fewer than 10 per match.

So the first question put to 2016 runner-up Milos Raonic after his 6-4, 6-2, 7-6 (4) loss to the seven-time Wimbledon champion in the quarterfinals Wednesday was: What does a guy have to do to beat Federer?"You know, you have to do a lot. It's a stiff task," said Raonic, who defeated Federer in the semifinals last year before losing to Murray in the final. "I guess you can know what you have to do. It's a lot harder to do it than just to know it."He's hardly the first to realize that, of course.

Bag Filter Housings for Wastewater Treatment

Bag filters are great for removing solids in a variety of waste streams.

Shanghai INDRO offers a full line of bag filter housings and media, including single, multi-bag, metal and plastic housings. Filter Bags can be used for applications including water filtration and water treatment, agriculture, chemical and food processing.

Bag filters and filter cartridges for water treatment

When it comes to industrial filtration, there are several different filter types to choose from when working with industrial grade liquids, including both bag filters and cartridge filters. Ultimately, however, the final choice comes down to choosing the right filtration technology to meet the performance demands of your facility, while remaining within your projected operating costs. Both bag and cartridge style filters offer removable media, but the final decision should be based on the application, as each type of media has its advantages and disadvantages.

BAG FILTERS

Bag filters are often the best choice for any number of industrial applications. These types of filters use a wide range of filtration media based on the application, such as activated carbon, needle felt, and nylon monofilament mesh. The operate by trapping waste solids inside the bag and are considered to be a relatively low-cost form of industrial filtration.

However, these filters have a smaller surface area than most cartridge filters. The low overall operating cost makes bag filters an excellent choice for small batch operations where the cost of a self-cleaning system would not be justified. Along with this, small operations will not have a high bag replacement frequency leading to lower disposal costs. Bag filtration systems tent to produce less solid waste than cartridge filters, making them an excellent choice for applications where the user wants to minimize their volume of waste.

CARTRIDGE FILTERS

Cartridge filters capture solid contaminants on the outer surfaces of the filter media. These types of filters run the gamut from inexpensive bonded units to more expensive models made from a variety of high-capacity pleated types of media. These filters can be used for a wide range of applications where sub-micron filtration is needed. These include beverage and food production facilities, chemical and paint plants, and applications where the filtration of acids and bases is required. Cartridge filters are also ideal for pharmaceutical applications as well as those in which ultra-pure water filtration is required.

Water treatment solutions –about filter bag and filter cartridge

In many filtering applications, a choice between the use cartridge filter or a bag filter has to be made. Both are sediment filters, that is to say they reduce the amount of sediments transported by the fluid trough filtration.
There are some differences between these two filter systems:

- The choice of cartridge filter depends on the application. Cartridge filters are preferable for systems with contaminations lower than 100 ppm, that is to say with contamination levels lower than 0.01% in weight.

Cartridge filter can be surface or depth-type filter: depth-type filters capture particles and contaminant through the total thickness of the medium, while in surface filters (that are usually made of thin materials like papers, woven wire, cloths) particles are blocked on the surface of the filter.
Surface filters are best if you are filtering sediment of similar-sized particles. If all particles are i.e. five micron, a pleated 5-micron filter works best because it has more surface area than other filters. Compared with pleated surface filters, depth filters have a limited surface area, but they have the advantage of depth.

It can be generally stated that if the size of filter surface is increased, higher flows are possible, the filter last longer, and the dirt holding capacity increases. Cartridge filters are normally designed disposable: this means that they have to be replaced when the filter is clogged.

- Bag filters are in general frequently used for dust removal in industrial applications. The flow can be from the outside to the inside of the filter (that means, the separation of particles happens on the external surface of the filter) or the other way around, depending on the application. The particles are normally captured on the internal surface of the bag filter.

Bag filters are in general not designed for replacement when they are clogged, but some bag filters for gaseous applications like dust removal can be cleaned, for example by mechanical shaking or by backwashing with compressed air (so called reverse-flow bag filters).

Bag filters are mostly surface-type filters.

- A rule of thumb is that for concentrations higher than 5 mg/m³ a surface filter is favored, while for concentrations lower than 0.5 mg/m³ a depth-type filter is preferred. In general surface filters can by backwashed and cleaned more easily, while depth-type filters normally have to be disposed when clocked.

Applications of water treatment filter bags

Needle Felt filter bags - Prefiltration in Water Treatment

Needle Felt filter bags - Amine Filtration in Petroleum Industry

Needle Felt filter bags - Electrophoretic Paint Filtration in Automotive Industry

Needle Felt filter bags - Syrup Filtration

Needle Felt filter bags - Raw Medicine Filtration

Needle Felt filter bags - Recycled Water Filtration in Electronic Industries

Monofilament Mesh filter bags - Prefiltration in Metallurgy Industry

Monofilament Mesh filter bags - Degreasing in Automotive Industry

Monofilament Mesh filter bags - Raw Water Filtration in Water Treatment Industry

Monofilament Mesh filter bags - Coolant Filtration in Paint Industry

Monofilament Mesh filter bags - Cutting Fluid Filtration in Machine Industry

Monofilament Mesh filter bags - Coarse Filtration in Chemical Industry

Monofilament Mesh filter bags - Recycled Water Filtration in Paper Mills

As one liquid filter bag manufacturer, Shanghai Indro Industry Co., Ltd offers all range of water treatment filter bags mentioned above.

Bag filters for water treatment overview

HOW BAG FILTERS WORK

Like its name suggests, a bag filter is a small bag made of a filtering material that attaches to a sturdy ring at the opening. The bag sits inside a filter housing and as the bag fills with water, it seeps through the filter's tiny holes, leaving behind unwanted contaminants. When you want high flow rate and basic purification, a bag filtration is a great solution.

WHAT IT FILTERS

A point of entry water system, the primary job of bag filters is to reduce the amount of silt, sand, dirt and other types of sediment in your water. Some bags have a micron rating small enough to filter out some particulates, but they will not clean out bacteria like e. coli or chemicals like chloramines. To remove contaminants like those, additional filter systems will be needed.

KEY USES

Bag filters are unique in that their primary use is in commercial, agricultural and industrial settings. Rarely, if ever, is a bag filter recommended for residential filtration. What makes a bag filter best for these industries is its ability to capture sediment without slowing down the flow rate. If a large piece of sediment is trapped in the bag, water can just flow around it because there is still a plenty of open surface area. This differs from filters that have small openings - if the filter surface is blocked by sediment, the water gets slowed or even stopped. Not only is maintaining flow rate beneficial, but you can remove the filter from its housing and manually remove the trapped material. The reusability is another key benefit of a bag filter.

CHOOSING A BAG FILTER

If removing sediment is your priority, a bag filter system is a great choice. With so many options available, it can feel overwhelming to decide which is right for you. To help narrow the selection process, consider these key questions:

·         What type of sediment are you filtering out? By knowing the size of the contaminant, you can determine the micron rating (size of holes in the filter) and media type (polyester, polypropylene or nylon) that will perform best. Additionally, the type of sediment will influence the kind of filter housing you should use.

·         What is the pH level of the water being filtered? It's important to know the pH of your water because the housing material can be impacted by it. If the water needing filtration has a higher or lower pH, choose a different housing material.

·         How much water is being used on a daily basis? If you anticipate needing to filter a high volume of water, you'll need to select a system that can support it.

·         What is the maximum and minimum water temperature? Filters perform differently at different temperatures, so selecting a filter that is best at high temps will not be useful if your water temp is low.

·         What is the ideal flow rate? Flow rate and micron rating are tied to one another - a higher micron rating has a greater flow - so it's important to balance the sediment size and desired flow rate to create a filtering system that meets your needs.

Andre Roberson's teammates roast his tipping tact after his $30 million deal

After coming to terms on a three-year, $30 million contract to remain with the Oklahoma City Thunder, All-Defensive Second Team wing Andre Roberson must’ve felt like celebrating with an adult beverage or whatever it is that costs $487.13 per bottle at a bar. The fun was apparently only just getting started.
The morning after Roberson agreed to his new deal, a server put Roberson on blast for tipping $13.97, or less than 3 percent, posting a photo of the bill and some choice words to his Twitter account:

Mesh filter sock and felt filter sock for aquarium from filter socks manufacturer

For reef tank or fish tanks or saltwater tanks in aquarium, mesh filter socks and felt filter socks are both available.

Normally, the micron rating is 100-200 micron, and the filter socks sizes are from 4*9” to 7*15”, 7*16”, and other sizes.

Mesh filter socks are washable, compared for felt filter socks, it can last a little longer time. But it cannot block fine particles.

Compared with mesh filter socks, when same size and same micron, the felt filter socks cost will be a little lower. And felt filter socks can block fine particles.

As one professional filter socks manufacturer, Shanghai Indro Industry Co., Ltd is manufacturing widely range of mesh filter socks and felt filter socks used in aquarium.

You can choose the most suitable one according to your exact conditions.

Aquarium Filter Media Bags - Filter Bags for Fish Tanks

It is always important to protect your aquarium equipment for the long run. Every filter media bag in INDRO’s selection is designed to do exactly that. These reusable bags hold your carbon, ammonia remover, or other media or resin, in order to prevent loose media from potentially causing expensive damage to your power filter's motor. These bags are easy to adapt to many different types of filters for your maximum convenience.

INDRO's aquarium filter media bags features top quality products in aquarium care, water maintenance and filtration equipment.

INDRO’s aquarium mesh filter bags are reusable, fine mesh filter bags that feature a drawstring for easy and secure bag closure. Use bag to hold carbon, ammonia remover, or any other filter media or resin. These help prevent costly damage to the power filter motor when being used in backpack filters. mesh filter bag can also be used to bury media in the gravel in undergravel filter systems.

 INDRO’s welded aquarium filter bag features a durable non-stitched seam. The Bag is unlike other filter bags in that it is resistant to acids, bleach and other harmful materials and will not degrade over time. Utilizing 180 micron mesh, the welded filter bag comes with a convenient resealable locking closure and is easily adaptable to many different varieties of filters.

The aquarium mesh filter bag is the most cost effective way to protect your filter from damage caused by loose filter media. This specially designed, 100% nylon, drawstring bag maximizes filtration and will not disintegrate in water. Protect your filter without reducing filter performance!

As one reliable aquarium filter media bagssupplier/manufacturer, Shanghai Indro Industry Co., Ltd is manufacturing many kinds of quality aquarium filtration products at reliable prices.

zinc refining column dust collection

Applications: zinc refining column dust collection

Temperature: 250 degree C after cooling

Baghouse: long bag pulse jet dust collector bag house under low pressure

Recommended filter bag: SIIC FMS filter bags

Price comparison of PP/PE/NMO filter socks

When same size, same micron rating and same structure, NMO filter socks’ price is highest.

PP/PE filter socks’ prices are same, lower than NMO filter socks.

But compared with PP/PE felt filter socks, NMO filter socks are more washable.

So the most suitable one is the best one, you can choose the most suitable filter socks according to your exact case.

Shanghai Indro Industry Co., Ltd is one professional manufacturer of filter socks, we offers widely range of PP/PE/NMO filter socks and workable solution for your difference case.

Experimental Germany beats Mexico 4-1 to reach Confed final

Germany's Leon Goretzka scores their second goal during a semi final between Germany and Mexico at the FIFA Confederations Cup Russia 2017 in Sochi, Russia on June 29, 2017. [Photo/Agencies]

SOCHI, Russia — Just how much Leon Goretzka wanted to seize his opportunity in an experimental Germany squad became clear after only eight minutes against Mexico.

With two goals in the space of 109 seconds on Thursday, Goretzka put the defensively-ragged Mexicans on the back foot and set Germany on its way to the Confederations Cup final with a clinical 4-1 victory.

Germany coach Joachim Loew is using the World Cup warm-up tournament to assess his pool of talent, resting all but three of his world champions from 2014. Silverware was never the priority. But the World Cup will have another trophy for company if Loew's fledglings can beat Chile on Sunday in St. Petersburg.

Germany drew 1-1 with the South American champions in the group stage, recovering after conceding in the sixth minute - and learning from the lax start.

"Against Chile in particular we were caught off guard; we'd discussed that beforehand and implemented it well today," the 22-year-old Goretzka said. "After getting through the group stage, our objective was to reach the final. We've done that convincingly. Now we want to win the title and reward ourselves for our performances so far."All three German scorers in the southern Russian resort of Sochi were players making their tournament debuts. After Goretzka netted in the 6th and 8th minutes, Timo Werner and Amin Younes scored in the second half.

"They have developed really well," Loew said through a translator in the Fisht Stadium. "Over these weeks, we have become a genuine team and that is important. They are very ambitious and yearning to be part of the national team."Despite the emphatic score line, Germany goalkeeper Marc-Andre Ter Stegen was kept busy. There were 25 shots on goal but he only conceded in the 89th minute, when he was beaten by Marco Fabian's long-range swerving shot.