Dust Cleaning System for Waste Incineration Industry
HQCC was founded in 1982, and it is a high-tech corporation which is specialized in research and develop of environmental protection technologies, manufacture environmental equipment, projects construction and consulting.
We are professionally manufacturing of de-dusting systems and their parts as bag filters, de-sulfuration equipment, pneumatic transportation equipment, dust handling equipment, mechanical air cooling equipment and components in all different types and specifications. All these products are used widely in industry fields such as metallurgy, power, machinery, foundry, cement, chemical, food, etc..
Our clients list includes a lots of large scale iron and steel enterprises such as Baosteel, Baotou Iron & Steel Group, Ma Anshan steel Company, Sanming Steel Company, Nanjing Steel Group, Xining Special Steel Company, Sha Steel company; and some foundry enterprises such as China Faw Group Corporation, Dongfeng Motor Group, Guangzhou Honda. We also export our products to Vietnam, Malaysia, Burma, Turkey, India, Indonesia, Japan, UAE, and Iran.
Why choose us?
Complete process system
Because of its long history, large output, wide distribution, high market reputation, a complete process system, has enjoyed a good reputation in the industry.
Stay true to the mission
We will do our best efforts to make more contributions to promoting the harmonious between human and the nature.
Quality team
Has established a unique design, manufacturing and construction team, can complete all kinds of system engineering design, production, installation.
Global service
International users radiate Vietnam, Malaysia, Myanmar, Italy, Turkey, Japan, Thailand, UAE, Iran, Russia, India...
The dust cleaning system of the garbage incinerator has the advantages of dust removal, especially high capture efficiency for micron and submicron dust particles, and is not affected by the dust resistivity; stable operation, strong adaptability to gas flow and dust concentration; large processing flow, and high performance, etc., and is used to capture non-adhesive and non-fibrous industrial dust. Its working principle is that the dust particles are intercepted by colliding with the fibers due to the inertial force when they are around the filter cloth fibers, and the fine dust particles (particle size of 1μm or less) are constantly changing the direction of movement due to the impact of gas molecules (Brownian motion). Since the gap between the fibers is smaller than the free path of the Brownian motion of the gas molecules, the dust particles collide with the fibers and are separated. Its advantages are dust removal and stability. For dust above 2μm, its efficiency can reach more than 99.9%, and it has low cost, simple management and convenient maintenance.
Benefits of Dust Cleaning System For Waste Incineration Industry
Extended equipment life
Dust can cause wear and tear on machinery. Consequently, this leads to more frequent repairs and replacements. Air filtration units benefit the operational life of the equipment. They do so by keeping it cleaner and reducing the abrasive effects of dust particles.
Reduced maintenance costs
Frequent maintenance is not only costly but also time-consuming. However, by minimizing dust accumulation, dust filtration systems reduce the need for regular maintenance. As a result, this lowers labor costs and allows maintenance staff to focus on other, more critical tasks.
Increased operational efficiency
Clean machinery operates more efficiently. Dust collection systems ensure that machines function at their optimal capacity. This reduces the risk of slowdowns and ensures consistent production rates. Therefore, the increased efficiency translates directly into higher productivity and lower operational costs.
Enhanced product consistency
Dust contamination can cause variations in product quality. But by maintaining a clean production environment, dust collection systems help ensure that products meet consistent quality standards, reducing the risk of defects and improving customer satisfaction and loyalty.
Reduced waste and rework
Defective products often need to be reworked or discarded, leading to increased material costs and wasted labor. By preventing dust contamination, air filtration systems minimize the need for rework, reducing waste and saving resources.
Compliance with quality standards
Many industries have stringent quality standards that must be met to maintain certifications and comply with customer requirements. Dust collection systems help ensure that production environments meet these standards. This avoids costly fines and ensures that products can be sold in regulated markets.
Enhanced worker safety and health
Dust collection systems play a crucial role in protecting worker health by reducing airborne dust and improving air quality. Healthier employees mean fewer sick days, lower healthcare costs, and higher productivity.
Energy savings
Efficient dust collection systems can also contribute to energy savings. By maintaining clean air and preventing dust buildup, these systems help ensure that HVAC and ventilation systems operate more efficiently, reducing energy consumption and lowering utility costs.
Regulatory compliance
Non-compliance with environmental and safety regulations can result in hefty fines and legal fees. Dust collection systems help businesses stay compliant with regulations, avoiding these costly penalties and the possibility of a forced shutdown.
Types of Dust Cleaning System For Waste Incineration Industry
Pulse jet dust collectors
- A pulse jet dust collector, also referred to as a pulse jet bag filter or pulse jet baghouse, is a dry fabric filtration system designed to remove the collected particulate matter and dust from the surface of the filter media with bursts of compressed air. The system provides excellent filtration efficiency and can eliminate potentially harmful particulate matter and gas fumes from entering work environments or from being released into the atmosphere. Pulse cleaning is usually performed “online” so the process can operate continually even with a single module.
- The name of the pulse jet baghouse derives from the short bursts or “pulses” of compressed air used to clean the bag or filter. The compressed air maximizes system efficiency at a minimal operational cost. Dust collects on the outside of the bag filter where it forms into a cake of dust. A Sensor activates pulses of compressed air to strike the bag when an appropriate thickness of dust collects. The pulse creates a shock wave effect on the outside of the filter bags to free the dust cakes off the fabric and into a collector at the base of the hopper.
Shaker dust collectors
Where compressed air is not available or impractical, shake-cleaning baghouse systems, or simply, shaker dust collectors are an excellent alternative. Shaker fabric filtration uses a shaker cleaning system to release the collected dust particles from filter media surfaces by mechanically shaking the filter bags. The shaking can be achieved manually or by using a motor connected to a rack supporting the filter bags. The system can clean off-line when the airflow is temporarily halted or it can be cleaned in sections one compartment at a time. The compartmented feature provides continuous cleaning and simultaneously allows individual compartments to be taken offline for servicing.
Cartridge collectors
Cartridge collectors are another type of fabric filter designed for specific configurations and applications. They are ideally suited for placement in smaller spaces that have the same airflow of a larger baghouse system. Cartridge collectors are cost-effective systems that present minimal safety hazards. As more fabric area is packed into smaller spaces, cartridge collectors utilize fewer filters and, because filters are changed from the outside, filters can be changed quickly with fewer safety risks. Where extremely high particulate removal efficiencies are required, cartridge collectors can also be fitted with HEPA filters to provide maximum air cleaning. HEPA filters trap 99.97% of airborne particulates down to 0.3 microns in size. CPEF also provides HEPA filtration on Pulse-Jet Systems. We routinely put HEPA filters on pulse-jet baghouses, also.
Cyclone dust collectors
Cyclone dust collectors are a type of mechanical inertial separator that removes dust from a gas stream through centrifugal or cyclonic force within a hopper chamber. As the name suggests, cyclone dust collectors create an intense circular airflow, a vortex in effect, to separate particles from the air. Heavier particles are pushed against the outer wall of the hopper and fall into a collection chamber at the bottom. Because they remove heavier particles from the airstream, cyclone systems are often employed as a pre-cleaner for larger baghouse filtration systems. They are engineered and designed in a wide range of configurations relevant to the filtration requirements of the industry. Sizes range from massive multi-cyclone outdoor collectors affixed to buildings to mobile cyclone dust collectors designed for use in labs.
Hoods :
The hood design should be such that all the air borne contaminant enter the hood and there is no escape of dust particles outside the hood area. The effective control of a contaminant producing process is brought about by first eliminating or minimising all air motion near the process and then capturing the contaminated air by causing it to flow into the exhaust hood. For this condition to be achieved, a proper capture velocity is to be selected. Air flow towards the suction opening must be sufficiently high to maintain the necessary capture velocity at the hood face and to overcome the opposing air currents. Elimination of sources of air motion as a first step in hood design is an important factor in cutting down the required air volume and power consumption of Blower horse power. The most effective hood uses the minimum exhaust volumetric flow rate to provide maximum contaminant control. Knowledge of the process or operation and generation pattern of the dust is very much essential before a hood can be designed.
Ducting system:
The ducting system plays a very important part of a dust collection system, because once the contaminant is effectively captured it has to be properly transported to the cleaning device without polluting the other areas. The design of the ducting system is based on the minimum transport velocity to be maintained so that the dust does not settle in the inside duct surface. The material of the duct is decided based on the abrasive and corrosive nature of the dust. Normally MS sheets of 1.6 mm to 5 mm are used for duct fabrication. When dust extraction system is designed for a abrasive dust like coal, cement or ceramic dust, bends & Y pieces are generally fabricated out of higher thickness sheets for longer life. For a fairly large dust extraction system, proper clean out doors shall be provided as adequate intervals for purpose of easy cleaning and maintenance. Moreover bends should be designed to have large radius (wherever possible) and Y branches should have minimum angle of entry for reducing the pressure drop in the system. Excessively high velocity in the ducting system will result in higher pressure drop in the system and consequently higher power consumption. Moreover higher velocities may cause rapid abrasion of duct work.
Air moving device:
Having designed a suitable hood and dust collector, a suitable exhaust fan or blower is required to create the necessary suction at the hoods. The capacity of the fan selected based on the total volume of air quantity required at various suction points of the system and a factor (normally) 10% of the theoretical volume is added to take care of possible leaks in the ducting system. Having designed the air quantity, the pressure drop in the system (i.e. the resistance in the system that the fan is to overcome) is calculated.
Dust disposal system:
The objective of a Dust Extraction system is not fulfilled unless the hazardous dust or contaminated dust that is filtered or removed from the dirty air stream is disposed in a proper manner without creating a secondary dust nuisance problem. Dry materials can create a secondary dust problem. In wet collectors, secondary dust problems are eliminated, although disposal of wet sludge can be a material handling problem. Solids carryover in waste water can create a sewer or water pollution problem. There are various types of dust disposal methods. In a wet system, the disposal of dust is simple, since the dust mixes with water and forms a slurrywhich can be let into a separate drain. If it is a dry dust like Cement, Coal and Ceramic dust, it is better to discharge the collected dust into the same conveyor from which it is extracted. If you take a case of brake lining out of asbestos, the dust collected in the bins at the bottom of the dust collection are mixed in a concrete mixed with water and the dust from a semisolid which is dumped into a pit which is covered later.
How to Maintain Dust Cleaning System For Waste Incineration Industry
Equip with deflagration protection
If a dust collector handles combustible dust, it must be equipped with deflagration protection. A common, cost-effective passive method is venting. An explosion vent opens when predetermined pressures are reached inside the collector, allowing the excess pressure and flame front from the deflagration to exit to a safe area.
Understand pressure capabilities
Understanding the pressure capabilities of the collector is important in the specification and selection of vent sizing. Comparing venting vessel strength to the deflagration strength and vent burst pressure is key to effective deflagration protection.
Protect the ductwork
The National Fire Protection Association (NFPA) requires protection for the ductwork and safety processes upstream of the dust collector. Equip the ducting with a flow-activated isolation valve protecting downstream work areas and processes from the propagation of flame and pressure through the inlet duct when deflagration occurs in a dust collector.
Don’t keep dust in the hoppers
A dust collector’s hopper should not be used to store dust. The hopper is only intended to funnel process dust to a storage bin. Dust that has accumulated in a hopper creates a potential fire or deflagration risk. Dust in the hopper may also diminish the collector’s performance by clogging the system and preventing the pulse-cleaning from doing its job. Self-dumping hoppers provide easy dust disposal while protecting against unwanted dust leakage between the collector and hopper.
Use pulse-cleaning controls
The dust collector’s cleaning system design works in conjunction with filter design. Selective cleaning controls provide an easy, maintenance-friendly way to keep filters clean.
Comply with emissions regulations
The U.S. Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) want to know that emissions will be at or below their required thresholds. The Minimum Efficiency Reporting Value (MERV) ratings scale provides a good indicator of a filter’s initial efficiency. However, it does not measure pressure drop, emissions while pulsing, energy performance or other parameters that better reflect dust collector efficiency.
Practice safe filter change-out
Ideally, workers should never have to enter the dust collector to change the filters. Dust collectors that require entry during service put workers at risk and require companies to file confined space entry permits and monitor for gas. For optimal safety, filters should be positioned for ease of access and slide in and out of the housing readily.
Know when to change filters
A simple but important safety requirement is to change filters when airflow through the system reaches a differential pressure limit as prescribed by the manufacturer or when the pressure drop across the collector is negatively affecting the ability of dust collector operation and the dust collection system to capture the dust, thus allowing it to escape into the facility. Some long-life cartridge filters can operate for two years or even longer between change-outs. However, for heavy dust-loading applications, filter replacement might be more frequent.
Installation requirements
To ensure the proper functioning of the dust control system, it is essential to consider the installation requirements. This includes evaluating the available utilities, such as electricity and compressed air, which are necessary for the operation of the system. Additionally, understanding the space requirements, such as the height, width, and clearance, will assist in selecting a dust collector that can be easily accommodated in your facility. Evaluating the installation requirements will help you avoid any potential challenges or delays during the setup process.
Understand the working principles of dust collectors based on their types
Different types of dust collectors utilize varying mechanisms to capture and separate dust particles from the air. It is important to understand the working principles of dust collectors to select a system that aligns with your needs. Baghouses filter, cartridge filter, cyclone separators, Pulse jet filter, electrostatic precipitators and wet scrubbers are some of the common types of dust collectors. Every category comes with its unique set of advantages and limitations. By gaining a comprehensive understanding of these mechanisms, you can choose a dust collector that best suits your application and maximizes dust control efficiency.
Value for money
While cost is an important consideration, it should not be the sole deciding factor when selecting a dust control system. Evaluating the value for money involves considering factors such as initial cost, maintenance requirements, energy efficiency, and lifespan of the equipment. A dust control system that may have a higher upfront cost but offers better filtration efficiency and longer lifespan can result in cost savings in the long run. Balancing the initial investment with long-term benefits will help you make a financially sound decision.
What kinds of support do you expect from your dust collector after\-sales service?
The after-sales service and support provided by the dust collector manufacturer should not be overlooked. When selecting a dust control system, consider the level of technical support, availability of replacement parts, and warranty offered by the manufacturer. A reliable after-sales service ensures that any issues or concerns with the dust control system can be promptly addressed, minimizing downtime, and maximizing the performance of your dust control solution.
Certifications
Our Factory
We are professionally manufacturing of de-dusting systems and their parts as bag filters, de-sulfuration equipment, pneumatic transportation equipment, dust handling equipment, mechanical air cooling equipment and components in all different types and specifications. All these products are used widely in industry fields such as metallurgy, power, machinery, foundry, cement, chemical, food, etc..
HQCC has two workshops which cover an area about 50.000m2 with advanced machineries to satisfy the productions in different requirements.
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