stay Bag filter It is particularly important to consider operating costs and therefore energy costs in the design of. The time interval for operators to make new investment or upgrade decisions is used to compare the costs of different filter concepts, in many cases 10 years. For a typical filter size of 1.2 million m3, the operating cost during this balancing period far exceeds the investment cost of the filtration system in the exhaust stream. As a result, the new process filter series is intensive in the development of filters to reduce the operating costs of vorderster local stations. Another focus of development work is the mastery of very high variance in the process filtration system to allow for different process technology and structural conditions to be taken into account. Therefore, the target direction from 2007 to 2009 is the "standardization" of projects carried out in dense filters to reduce the number of parts (internal variance), while keeping the large number possible to be achieved is (external variance) the relatively limited amount of constructive gundelemente in the picture is only for 1-12 filter chamber (each with 8 × jet tube, 8-17 ejector per row) to represent more than 600 , 000 different variant line filters. The range of the embodiment of the is from einkammerfilter with an IB of 20000 m3 / h. through a double filter for the medium flow rate range, a series filter with 64 filter chambers (x 136 tubes) of 12 m long tubes and a 3 million M flow rate of a tandem filter 3 / h IB is adopted. The project megafilter is available in black steel, stainless steel or in hybrid embodiments. According to different requirements and process conditions, the following basic types of pulse jet cleaning are performed: network lockable pure and rohgasklappen for on-line maintenance, semi offline and offline (e.g. semi offline (one chamber is continuously used for cleaning removal by cleaning gas side stream interruption), but additionally, the automatic feed gas side of the on-line chamber to be cleaned is closed) 。 The standardized shell components and wall modules have been optimized by FEM to achieve high bending stiffness, and the wall thickness of 3, 4 or 5 can be prefabricated by welding components in mm, and the laser robot has high productivity and high precision. The moxa series is both turnkey in integrated supply, as well as drawing delivery and local delivery available (e.g. in hardware, shell, torso and entire perimeter, i.e., tube, vacuum and metal filter head modules in drawing delivery). A reference list of which the 2009 series was first released has been included in Europe and Asia, both as electrostatic precipitator retrofits, as well as new installations, containing a large number of process filters. Turnkey project
In order to significantly reduce operating costs, so as to meet the following characteristics of bag filter series:
Gas flow distribution between the feed pipe and the feed pipe is optimized by CFD.
The newly designed clean and raw gas flap has strong aerodynamic rotation drive and small flow resistance (CFD optimization). The original gas flap is embedded.
Dense filter design with integrated diaphragm valve block, special large stroke and straight nozzle insert short flow path.
Advanced ejector technology with ideal nozzle or dense filter Coanda injector.
All on-line and off-line operation modes are implemented as standard, such as half off-line, low-pressure cleaning, small compressed air requirements and large hose service life.
Clean compact filter jetbus controller control unit and controlled initial pressure controller, in which case the differential pressure of the filter remains constant as the control variable and the tank pressure as the continuous control variable, so the requirement of compressed air required is reduced to a minimum. At the same time, the load on the filter bag is reduced and its service life is increased.
Filters in various embodiments are "made from dense filters" sleeves: for example, ePTFE / fibrous membrane media or needle Protex generate microfiber webs with further advantages related to energy efficiency, such as Protex PI and Protex m-aramid for high-temperature applications
By optimizing the flow housing, the cleaning system and the filter medium are composed of a series of possible filter hose lengths up to 12 meters in length used in megaproject. Compared to the traditional design (online pressure hose filter, traditional needle felt media, hose length 6 m), the described innovation with the projetmega? Series, for example, summarizes the cost reductions that can be achieved in industrial dust removal in Figure 5. (here, under the same process conditions, the investment cost is up to 20% (mainly due to the increase of pipe length of 6 μ M-10 μ m), the maintenance cost is reduced by 20% (due to the increased service interval of filter bag with lower load), and the energy cost is reduced by 45% PI filter media, reduce filter resistance, and in the semi offline mode of compressed air demand and the role of lower differential pressure, can always use the newly developed filter technology, LCC, through a 10-year balance sheet is reduced to 40%.