Bag House
Our complete range of fabric filtration solutions
Ecomak's bag collectors/filters come with proven technology and provide efficient cleaning with pulse cleaning method and reverse air cleaning method. Ecomak can offer customized options depending on the application, dust load, pressure, temperature among other parameters to ensure long system life with easy and minimal maintenance.
Ecomak has decades of experience in providing superior cloth/fabric filtration technology for a variety of applications. Our bag house systems can handle continuous dust loads and temperatures of up to 280 °C.
Reverse-air Baghouse
In a Reverse-air bag-house (RABH), the bags are fastened onto a cell plate at the bottom of the baghouse and suspended from an adjustable hanger frame at the top. Dirty gas flow normally enters the baghouse and passes through the bag from the inside, and the dust collects on the inside of the bags.
Reverse-air baghouse are compartmentalized to allow continuous operation. Before a cleaning cycle begins, filtration is stopped in the compartment to be cleaned. Bags are cleaned by injecting clean air into the dust collector in a reverse direction, which pressurizes the compartment. The pressure makes the bags collapse partially, causing the dust cake to crack and fall into the hopper below. At the end of the cleaning cycle, reverse airflow is discontinued, and the compartment returns to the main stream.
The flow of the dirty gas helps maintain the shape of the bag. However, to prevent total collapse and fabric chafing during the cleaning cycle, rigid rings are sewn into the bags at intervals.
Reverse Air-Baghouse system is used where the volumes of the gas handled are huge.
Ecomak has provided Reverse Air Baghouse for the last three decades. The first ever project in company's history was for a Reverse Air Baghouse catering to 1,00,000 Am3/hr capacity. Ecomak can provide Reverse Air Baghouse upto 30,00,000 Am3/hr.
Pulse Jet Baghouse
Online Baghouse
In an offline pulse jet baghouse, the construction and working is similar as the online baghouse. The offline Pulse jet Baghouse consists of a number of modules/chambers. Each module is isolated from gas stream by closing its outlet poppet damper in predetermined sequence. In an isolated module, each of filter bag rows is cleaned sequentially by compressed air pulses. The mass of air also draws air behind it, adding to the downward airflow.
The dust removed falls into the hoppers and is discharged through discharge valve. A master controller – which can be Programmable Logic Controller (PLC) based dictates the sequence of the chambers that should be go in "Offline Mode".
Offline baghouse systems are generally suitable for large volumes or applications which have light dust. These baghouse systems are robust and sturdy. One of the main advantages of the offline baghouse system is that the maintenance of the system can be done by "switching off" one module till the time the maintenance activity is complete.
Offline baghouse systems are used in steel, cement and power applications where the gas volumes are huge.
Ecomak Offline pulse-jet baghouse technology caters to various sectors of the industry. Offline Pulse-jet baghouse is used for PRIMARY and SECONDARY Ventilation applications.
Pulse Jet Baghouse
Ofline Baghouse
In a Reverse Pulse Jet Baghouse or simply known as Pulse Jet Baghouse (PJBF or PJF), filter bags are supported by a metal cage, which are fastened on a laser cut tubesheet plate at the top of the baghouse.
Dirty gas enters from the bottom of the baghouse and flows from outside to inside the bags. The metal cage prevents collapse of the bag. This filters the dirty gas which captures the dusty gas particles on the outer surface of the bags.
Bags are cleaned by a short burst of compressed air injected through a common air manifold over a row of bags. The compressed air is accelerated by a venturi nozzle mounted at the reverse-jet baghouse top of the bag. Since the duration of the compressed-air burst is short (generally, less than 0.1seconds), it acts as a rapidly moving air bubble, traveling through the entire length of the bag and causing the bag surfaces to flex. This flexing of the bags breaks the dust cake, and the dislodged dust falls into a collection hopper below.
Pulse Reverse-jet dust collectors can be operated continuously and cleaned without interruption of flow because the burst of compressed air is very small compared with the total volume of dusty air through the collector. The short cleaning cycle of reverse-jet collectors reduces recirculation and redeposit of dust. This cleaning system works with the help of sequential timer or PLC based panel attached to the fabric filter. This timer indicates the solenoid valve to inject air to the blow pipe.
Online baghouse systems are used in applications such as- Industrial Boiler Exhaust flue gas, material handling systems, capturing nuisance dust in plants among a few of the many applications.
Ecomak has supplied online pulse-jet baghouses with volumes ranging up to 1,00,000 Am3/hr and more for a wide variety of applications ranging from milk powder to uranium ore
Insertable Baghouse
In Insertable baghouse, the pad-shaped bags are fastened onto a cell plate at the bottom of the baghouse and suspended from an adjustable hanger frame at the top. Dirty gas flow normally enters the baghouse and passes through the bag from the inside, and the dust collects on the inside of the bags.
Insertable bagfilters have continuous operation. Before a cleaning cycle begins, filtration is stopped in the compartment to be cleaned. Bags are cleaned by injecting clean air into the dust collector in a reverse direction, which pressurizes the compartment. The pressure makes the bags collapse partially, causing the dust cake to crack and fall into the hopper below. At the end of the cleaning cycle, reverse airflow is discontinued, and the compartment returns to the main stream.
The flow of the dirty gas helps maintain the shape of the bag. However, to prevent total collapse and fabric chafing during the cleaning cycle, rigid rings are sewn into the bags at intervals. Insertable pulse jet baghouse are best utilized where there are space constraints or limitations to install a conventional baghouse in the plant.
Do you have space constraints in your plant for pollution control equipment??
Insertable Baghouse is THE Solution for this situation. ECOMAK offers Insertable baghouse ranging from as less as 1000 Am3/hr to 30000 Am3/hr.
