SFM dust collectors are a cost-effective option for solving various tasks of dust aspiration.
They are single-block semi-automatic pocket dust collectors of non-continuous action with filtering surface area from 6 to 45 m2 and with mechanical shaking of filter elements. To regenerate the dust collector it is necessary to switch off the fan periodically.
The dust extraction plant is used to clean air or gases from various types of dry, loose, non-sticking dust. Dust collectors can be placed both indoors and outdoors.
Restrictions on the use of SFM
- in the standard version dust collectors do not provide structural protection against explosion;
- not designed for continuous operation;
- not suitable for the for the following types of dust: smoldering, self-igniting, fibrous, sticky, dusts with moisture.
Applications
- aspiration of silo and bunker loading/unloading;
- aspiration of manufacturing machinery and downstream equipment;
- aspiration of transfer points, conveying belts, conveyors, elevators;
- aspiration of crushers, mills, screens, coolers, mixers, batcher, etc.
- aspiration of shot blasting and sand blasting.
Features & Benefits
-
No compressed air connection is required.
The filter pockets are regenerated by mechanical shaking. - High level of purification
Residual dust content of 10-20 mg/m3 and less. -
Easy assembly and mounting
The dust collector is supplied as a fully assembled unit or as an assembly of modules (housing, hopper with supports, regeneration system), which simplifies on-site installation in limited dimensions and significantly reduces commissioning time. -
High-quality paint coat of the unit
To protect the collector housing from external influences, there is an option to make special sandblasting of the metal surface and further three-layer coating with paints of the Finnish manufacturer Tikkurila. - Modular design
- Optional two-stage filtration with additional module.
| SFM dust collector design
The upper part of SFM dust collectors consists of a housing with “clean” and “dirty” filter chambers with a front door. The lower part includes a conical hopper (picture on the right) mounted on supports, a dust-collecting tank on wheels with a manual cut-off valve. Dust collectors are equipped with regeneration system by mechanical shaking of filter elements. The cleaning motor mounted outside the collector housing and protected by a casing can operate in wet and dusty environment. Possible sizes, relevant filtration areas, and rated capacities are shown in the table below. Construction |
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| Filter Elements Filter elements of SFM dust collectors are flat, smooth woven pockets sewn in the upper part into one piece. A metal mesh frame stretched on a rectangular metal bar chassis is inserted inside each pocket. |
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Type of filter elements used in SFM dust collectors
| Designation | Filter type | Pocket material | |
|---|---|---|---|
| PF-P6-SFM | SFM 06 | Polymeric ester | |
| PF-P13-SFM | SFM 13 | Polymeric ester | |
| PF-P23-SFM | SFM 23 | Polymeric ester | |
| PF-P30-SFM | SFM 30 | Polymeric ester | |
| PF-P45-SFM | SFM 45 | Polymeric ester | |
| PF-C6-SFM | SFM 06 | Antistatic polyester | |
| PF-C13-SFM | SFM 13 | Antistatic polyester | |
| PF-C23-SFM | SFM 23 | Antistatic polyester | |
| PF-C30-SFM | SFM 30 | Antistatic polyester | |
| PF-C45-SFM | SFM 45 | Antistatic polyester |
Regeneration system
In order to maintain the air permeability of the filter cloth, it must be regularly cleaned from dust. For this purpose, the filter pocket is shaken by means of a rod connected to an electric motor mounted outside the filter chamber. After switching on the electric motor, a reciprocating motion is transmitted to the rod with a comb through the eccentric mechanism. During shaking the dust, settled on the surface of the filter pocket, flakes off and falls downwards, settling in the hopper.
Special features of SFM dust collector regeneration
Due to the regeneration of the SFM series filters by mechanical shaking, they require periodic shutdown. The operating cycle is about 2 hours, the shaking duration is 90 seconds (factory setting, adjustable parameter).
During regeneration, the airflow through the dust collector must be stopped. It can be realized by installing a special control unit, which stops the fan before starting the shaking motor by manually pressing the regeneration activation button. The shaking motor is started up again after its run-out.
At the end of the regeneration process the control unit automatically stops shaking and starts the fan until the next pressing of the regeneration button. In the standard version the dust collector is not equipped with a fan, therefore the control unit provides only manual start and automatic stop of the shaking motor.
SFM-…-FH spot dust collectors
For aspiration of silos, hoppers loaded with bulk solids as well as for aspiration of overflow areas, SFM filters are available in spot version (without hopper) for installation above the dusting area.
General engineering drawing of a standard dust collector SFM -..-GV/DB
Technical characteristics of SFM dust collectors
| Dust collector model | Perfor- mance, m³/h | Filtration area, m² | Weight, kg | А, mm | В, mm | С, mm | D, mm | D1, mm | Н, mm | h, mm | Е, mm | F, mm | G, mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SFM-06 | 550 | 6 | 213 | 500 | 700 | 1 806 | 139 | 199 | 2 011 | 988 | 350 | 550 | 788 |
| SFM-13 | 1 200 | 13 | 257 | 800 | 700 | 1 806 | 159 | 199 | 2 011 | 988 | 650 | 550 | 788 |
| SFM-23 | 2 100 | 23 | 300 | 800 | 945 | 2 082 | 159 | 249 | 2 287 | 1 108 | 650 | 795 | 908 |
| SFM-30 | 2 800 | 30 | 328 | 1000 | 945 | 2 082 | 249 | 249 | 2 287 | 1 108 | 850 | 795 | 908 |
| SFM-45 | 4 200 | 45 | 365 | 1000 | 945 | 2 507 | 314 | 314 | 2 712 | 1 108 | 850 | 795 | 848 |
General engineering drawing of a spot (silo, assembly-line) dust collector SFM-..-FH
SFM spot filters can be produced both in pressure version (without fan) – for ventilating silos, bunkers, etc., which are under overpressure, and in discharge version (with fan) – for installation at transfer points and on silos where it is necessary to create a vacuum.
Technical characteristics of dust collectors SFM-..-FH
| Dust collector model | Performance, m3/ч | Filtration area, m2 | Weight, kg | А, mm | В, mm | С, mm | D1, mm | E, mm | F, mm | G, mm | H, mm | Xxa, mm | Xxb, mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SFM-06-FH | 550 | 6 | 130 | 500 | 700 | 816 | 199 | 436 | 634 | 72 | 172 | 200 | 3х200 |
| SFM-13-FH | 1 200 | 13 | 156 | 800 | 700 | 816 | 199 | 736 | 634 | 72 | 122 | 3х200 | 3х200 |
| SFM-23-FH | 2 100 | 23 | 195 | 800 | 945 | 972 | 249 | 736 | 879 | 94,5 | 122 | 3х200 | 4х200 |
| SFM-30-FH | 2 800 | 30 | 205 | 1 000 | 945 | 972 | 249 | 936 | 879 | 94,5 | 82 | 4х220 | 4х200 |
| SFM-45-FH | 4 200 | 45 | 225 | 1 000 | 945 | 1 397 | 314 | 936 | 879 | 94,5 | 82 | 4х220 | 4х200 |
Delivery set
| Standard delivery set |
|---|
| Dust collector housing with a service door |
| Pyramid hopper with an inlet nozzle |
| Regeneration system with control panel |
| Supports |
| Purified air outlet manifold |
| Filter-pockets PH-P..-SFM or PH-C..-SFM with frame |
| Ground line (for antistatic design) |
| Extra |
|---|
| Fan |
| Additional discharge and collection systems for captured dust |
| The SFM-30 and SFM-45 modules can be mirrored together |
Contacts
Arrisa Avenue, Unit #15, Office No. 303, 3rd Floor, Kolte Patil Downtown, Kharadi, Pune-411014, India