Industrial Polytetrafluoroethylene (PTFE) Needled Felt Filter Bag for Dust Collector

INTRODUCTION

Filter bag is the core of the dust filter components. The filter bag has the strict requirements on design, filter material cutting, woven technology etc. These requirements are very important for the normal operation of the bag filter and convenient maintenance, and it is great significance to enlong the service life of the filter bag.

Structure and application

Filter bag are composed by woven filter material bag body and supported in role, snap ring, clamp, chain hoist, etc. The rest of the filter bag dust collector and its accessories are the venturi tube, frame, mouth of elastic ring, etc.

Specifications

The diameter of the filter bag is 115-200mm, length is 2000 - 9000mm, the specifications of the commonly used filter bag is 120 - 160 mm diameter,  2000 ~ 6000mm length.


 

Filter bag processing need attention

Filter bag processing matters that should be paid attention: 

After the selection of filter bag material and determine the specifications of the filter bag, we will process the filter bag as following attention matters:

(1) Precise design required size of the filter cloth for filter bag parts, the filter cloth will larger than the actual amount design size, to leave a spare for weaving.

(2) To choose the right filter bag accessories, specifications and check its quality. The filter bag accessories should match the filter bag quality requirements.

(3) We make the filter bag line drawing, cutting, sewing on automatic production line. When the filter bag need manual processing, we will open it on the operation platform, and with certain pulling force to keep it is flat.

(4) We keep the strict processing quality standards, according to design drawings and operation process. Our worker meet the requirements of tooling and clothing shoes and hats, no smoking.

(5) We have the responsible for the processing of products, and examines, waste, residue, defective goods in the beginning.
 
The filter bag sewing need attention:

Filter bag sewing material should be the same as the material of filter material. In special circumstances, we will adopt to use different filter material of sewing thread, the suture properties such as strength, heat resistance and chemical resistance should be better than the filter material sewing thread.

The filter bag stitching line:

Filter bag bag body vertical stitches must be strong, straight, and shall not be less than three line. The bag top and bottom according to different requirements with single or double needle stitching. Filter bag suture needle closely related to the filter bag material, not only to ensure the stitching rigor and suture strength not leak dust, but also shall not damage the strength of the filter material itself.
The Needle density of chemical fiber filter material filter bag should within 10 cm length (25 + / - 5) needle; Glass fiber filter material filter bag needle density can not too large. The stitching width normally for 9 ~ 12 cm. The stitches and distance on the edge of the filter material: needled felt for 2 ~ 3 mm, glass fiber filter material is 5 ~ 8 mm.
Filter bag should be according to the design requirements for inspection and repair after sewing, eliminate surface crease, dirt and grease. For PTFE coated filter bag, in addition to the needle density control and strict operating procedures, it needs to use special materials for all the pin hole repairing.

Inspection of filter bag:
Filter bag manufacture should be according to the national standards, industry standards and enterprise standards, quality supervision departments according to the number of sampling test project and the proportion. According to the number of sampling ratio is 5% ~ 20%. For higher requirements on the filter bag, As a group of sampling rate should be above 15%.
 

Working occasions

In industry dust collection:

Power Stations
Filtered dust 
Flue ash, discharging flue ash 
Coal dust 
Building and Construction 
Cement, furnace dust, gypsum, limestone, finely ground quartz, 
Calcium hydroxide, lead monoxide, quicklime, acid crystals, 
Pure clay, phosphates, magnesite concentrate, finely ground 
fluorid, production of aluminum 
Chemical Industry 
Thomas meal (Fertilizer) 
Rubber compounds, sinter dust, catalysts 
Sodium sulfate 
Soap powder

In machinery top:

Silos / Tanks 
Discharging systems 
Warehouse units 
Mixing equipment 
Homogenizing systems 
Chute Bottoms 
Conveyor systems 
Ventilator systems 
Aeration systems 
Powder Coating Machinery 
Bottoms for sinter basin

Packaging & Shipping
Different types of filter bag must be individually packaged. In general, it is wrapped in plastic bags for each filter bag, the number of filter bags in a carton. Filter bag must be neat and regular packing, with the ring of the filter bag to avoid ring flat compression deformation. For the requirement to keep the shape of filter bag (such as glass fiber needled felt filter bag), it must fill padding for filter bag inside.

We provide all kinds of standard export packing for cargo protection. The bag filter will be fixed on the container. The filter bag and cages will be fixed in corrugated box and steel framed structure.

Our Services

1. Enquiries quickly reply within 24 hours.

2. After-sales service, rapid response, the engineer installation guide. The feedback problems will be replied within 24 hours. We can arrange professional engineers arrived at equipment location within 48 working hours for problem solved.

3. The dust collector design according to the specific condition of dust removal technology. The wind network project design for all system. To be the optimal structure design.

4. The lowest equipment price whole network in alibaba  Welcome to rate of the price. If our price is higher, we will return twice of our quoted price difference to you. Please prompt before sign the contract with us. Due to our good faith principle. 

5. The bag filter equipment over 20 years working life.

6. Associated with equipment spare parts, ensure the replacement parts within 20 years.

7. If accessories stop production or update, to ensure that the replacement parts can be normal use, and keep noticed one year before the spare parts stop production.

8. Ensure easy operation and absolutely no worries about future

Company Information

CNP Co., Ltd. was founded in 2008, specializes in the field of air pollution control and bag filter, Including engineering design, planning, consulting, equipment research and development, manufacturing, sales, installation and commissioning, as well as production and services.

With national environmental design qualification and qualification certificate of foreign contracted projects, as well as certification of the IS09001, IS014001 and IS018001. Now we have become a much respected users-concerned PM2.5 dust control and industrial de-dusting solutions provider. We do contracting business of municipal solid waste incineration flue gas treatment system, electromechanical integration of environmental protection, total contracting capabilities of new technologies.

Since Five years ago, CNP has always regarded as our responsibility as to "Purify the atmosphere and benefit mankind", adhered to scientific and technological innovation and introduction, digestion and development. So far, we have developed more than 30 sets of series over 400 kinds of specifications of bag filter, successfully undertake and complete total contracting of a variety of types of large, medium-sized dust-removal, desulfurization project.

Achieve an annual output of dust filter area of one million square meters. Products are sold domestically and also exported to nearly 20 countries and regions, including Japan,Korea, Singapore , Australia, USA,Brazil, Russia, Portugal,India, Vietnam , Bangladesh. Products are widely used in metallurgy,boiler,waste incineration , nonferrous metals, building materials, food,light industry, chemical industry, machinery casting,electronics industries and so on.

Based on the high starting point, CNO Co., Ltd., with a positive and upward pioneering spirit, will further create brilliancy as to technological innovation, intellectual property rights and independent brand strategy.

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