Dust collection system

FIELD: technological processes.

SUBSTANCE: invention concerns gas treatment systems. Dust collection system includes source of gas to be cleaned, pipes, fan, three dust collectors at oncoming swirl gas flows, dampers and conical separation concentrator installed in the pipes, concentrator containing cylindrical swirl chamber connected to inlet chamber with tangential inlet. Swirl chamber encases axial pipe for discharge of gas flow with lesser dust concentration, pipe outlet located at the swirl chamber side opposite to inlet chamber. Swirl chamber surface carries side pipe for discharge of gas flow with larger dust concentration. Source of gas to be cleaned is connected to tangential inlet of separation concentrator, side pipe of which is connected via dampers to tangential inlet pipe and inlet swirler of first dust collector. Axial outlet pipe of first collector is connected to tangential inlet pipe of third dust collector via a damper and to side pipe of separation concentrator via dampers. Axial pipe of concentrator is connected to tangential inlet pipe and inlet swirler of second dust collector, axial outlet pipe of which is connected to inlet swirler of third dust collector and to axial outlet pipe of separation concentrator, while axial outlet pipe of third dust collector is connected to suction pipe of fan.

EFFECT: improved gas treatment efficiency, convenience of maintenance.

3 dwg

 

The invention relates to systems for the purification of gas and can be used in various industries - chemical, food processing, woodworking, building materials, require purification of exhaust gases from fine dust particles.

Known dust collection system containing source gas to be purified, a fan and two dust collector on the counter-swirling gas flows, each of which is made in the form of a cylindrical body with a conical hopper with a tangential inlet pipe, inlet swirl second input connection with paleotology conical washer on its outer surface with an axial outlet pipe and with perevypustim pipe, which has a rotary shutter. With this are connected to the output of a source gas to be purified, a tangential inlet pipe, a cylindrical housing, an axial inlet pipe of the first dust collector, fan, tangential inlet pipe, a cylindrical housing and an axial outlet of the second dust collector. The fan is connected directly to an input swirl second paleolatitudes, perevypusku pipe which is connected directly to the input of the first swirl paleolatitudes (see the description of the patent RU №2137528, 1999). This system is the most the e closest analogue of the proposed technical solution.

A disadvantage of the known system is that it does not provide a clean flow of fine dust.

The objective of the proposed invention is to increase the efficiency of gas purification, especially containing finely dispersed particles, and ensuring ease of maintenance.

The invention consists in that the dust collection system includes a source of gas to be purified, piping, fan and two dust collector on the counter-swirling gas flows, each of which is made in the form of a cylindrical body with a conical hopper, the first tangential inlet pipe, inlet swirl second input connection and paleotology conical washer on its outer surface with an axial outlet pipe cleaned gas and perevypustim pipe, which has a rotary shutter. The system of the particulate differs from the closest analogue that is further provided with a third dust collector on the counter-swirling flow of gas in a similar design, mounted on pipelines dampers and splitter hub including a cylindrical vortex chamber provided with an inlet chamber having a tangential input in the vortex chamber installed axial pipe for output gas stream with a lower concentration of dust, the output of which is placed pair input from the camera side of the vortex chamber, on the surface of the vortex chamber is side socket for output gas stream with a higher concentration of dust, the source gas to be purified is connected to the tangential input of the splitter hub side outlet of which is connected through the first and second flap with tangential inlet cone and advanced through a third valve with inlet swirl of the first collector, the axial outlet of which is connected through a fourth valve with tangential inlet side of the third dust collector and through the fourth, fifth and first valve side outlet separator-concentrator, the axial pipe of which is connected through the sixth and seventh valves with tangential inlet nozzle, optionally through eighth flap with inlet swirl second collector, the axial outlet of which is connected through the ninth gate to the input swirl the third dust collector and through the ninth, tenth and the sixth valve to the axial pipe of the separator of the hub and the axial outlet of the third collector connected to the suction inlet of the fan.

The invention is illustrated by drawings, where figure 1 shows a diagram of the proposed system dust collection, figure 2 is a front view of the separator-concentrator depicted in figure 1, and figure 3 - it VI is the top.

The dust collection system includes a source of gas to be purified 1, fan 2, and three of the dust collector 3, 4 and 5 on the counter-swirling gas flows, each of which is made in the form of a cylindrical body 6 with a conical hopper 7, the tangential inlet cone 8, the inlet swirler 9, installed in the second inlet pipe 10, and paleotology conical washer 11 on its outer surface with an axial outlet pipe purified gas 12 and perevypustim pipe 13, which has a rotary shutter 14.

The system contains ten dampers 15-24 and the separator-concentrator 25 including inlet chamber 26 having a tangential input connected to cylindrical vortex chamber 27, the lateral pipe 28 to output gas stream with a higher concentration of dust and axial pipe 29 to the output of the gas stream with a lower concentration of dust.

The dust collection system works as follows.

The flow of dust-Laden gas from the source 1 passes through a tangential entry in the inlet chamber 26 of the separator-concentrator 25 (see figure 2, 3), which is fed into the cylindrical vortex chamber 27, where it is split. In the vortex chamber 27 is installed axial pipe 29 to the output of the gas stream with a lower concentration of dust, the output of which is placed opposite to the inlet chamber side of the vortex chamber, on the surface in Krivoy camera is side socket 28 to output gas stream with a higher concentration of dust.

The gas stream with a higher concentration of dust from the side of the socket 28 is supplied to the cleaning, the dust collector 3, as follows. When you open the flaps 15, 16 and 17 and the valve is closed 19 stream is fed to the tangential inlet pipe 8 and through the inlet swirl 9 second inlet pipe 10.

After cleaning in the first dust collector 6, the axial gas outlet pipe 12 through the open valve 18 is supplied to the tangential inlet pipe 8 of the third dust collector 5.

The gas stream with a lower concentration of dust from the axial pipe 29 of the separator-concentrator 25 when you open the flaps 20, 21 and 22 and the closed flap 24 is directed to the tangential inlet pipe 8 of the second dust collector 4 and through the inlet swirl 9 second inlet pipe 10 of the second dust collector 4.

After clearing the second dust collector 4, the gas through the open valve 23 is applied to the input swirl 9 of the third dust collector.

From the axis of the outlet pipe 12 of the third dust collector 5 thread cleaned gas enters the suction inlet of the fan 2 and then released into the atmosphere.

Formed in the collector 3, 4 and 5, the dust is removed by perevypustim the pipe 13 through the rotary valve 14.

If necessary, conduct cleanup to reduce the resistance of dust collection system. To do this, disable the PE the first 3 and second 4 dust collectors by overlapping flaps 16, 18, 21 and 23, with the valve 15, 19, 20, and 24 are open and the flow of dust-Laden gas from the axial pipe 29 and the side of the socket 28 of the separator-concentrator 25 serves respectively tangential inlet pipe 8 and the inlet swirl 9 pipe 10 dust collector 5, and the cleaned gas is supplied to the fan 2 and is discharged into the atmosphere.

Example.

The proposed dust collection system was used to capture coke dust with an initial concentration on the login 5,2-12 g/m3while the content of the coke particles of dust with a size of 15 microns was reached 40%. The output of the system, the concentration of dust particles was 0.2-0.4 g/m3and the content of particles with a size of 15 microns was less than 15%.

Thus, the proposed system dust collection is not only convenient, but also is characterized by high efficiency gas cleaning.

The dust collection system, including the source of the purified gas, pipelines, fan and two dust collector on the counter-swirling gas flows, each of which is made in the form of a cylindrical body with a conical hopper, the first tangential inlet pipe, inlet swirl second input connection and paleotology conical washer on its outer surface with an axial outlet pipe cleaned gas and plavius the first pipe, which has a rotary shutter, wherein is further provided with a third dust collector on the counter-swirling flow of gas in a similar design, mounted on pipelines dampers and splitter hub including a cylindrical vortex chamber provided with an inlet chamber having a tangential input in the vortex chamber installed axial pipe for output gas stream with a lower concentration of dust, the output of which is placed opposite to the inlet chamber side of the vortex chamber, on the surface of the vortex chamber is side socket for output gas stream with a higher concentration of dust, the source gas to be purified is connected to the tangential entry delimiter hub side outlet of which is connected through the first and second flap with tangential inlet cone and advanced through a third valve with inlet swirl of the first collector, the axial outlet of which is connected through a fourth valve with tangential inlet side of the third dust collector and through the fourth, fifth and first valve side outlet separator-concentrator, the axial pipe of which is connected through the sixth and seventh valves with tangential inlet nozzle, optionally through eighth gate with input Savir the winner of the second dust collector, the axial outlet of which is connected through the ninth gate to the input swirl the third dust collector and through the ninth, tenth and the sixth valve to the axial pipe of the separator of the hub and the axial outlet of the third collector connected to the suction inlet of the fan.



 

Same patents:

FIELD: technological processes.

SUBSTANCE: invention concerns gas treatment systems. Dust collection system includes source of gas to be cleaned, fan, pipes and three dust collectors at oncoming swirl gas flows, each collector made in the form of cylindrical case with conical tank, tangential top inlet pipe, inlet swirler in bottom inlet pipe, and dust-screening conical disk at its outer surface, with axial outlet pipe for cleaned gas and dust discharge pipe in which flood gate is mounted. Conical tanks of first and second dust collectors have dust and gas mix discharge pipes. Source of gas to be cleaned is connected to the fan inlet, fan delivery nozzle is connected by pipes with dampers to tangential inlet pipes and inlet swirlers of first and second dust collectors, axial outlet pipes of which enter open air. Dust and gas mix discharge pipes of conical tanks of first and second dust collectors are connected by pipes with dampers to tangential inlet pipe and inlet swirler of third dust collector, axial outlet pipe of which is connected over a damper to pipe connecting source of gas to be cleaned to the fan inlet.

EFFECT: efficient treatment system for large gas volumes.

1 dwg, 1 ex

FIELD: motors and pumps.

SUBSTANCE: dust-collecting system includes the source of cleaned gas, pipelines, fan, two dust-collecting units installed at counter-current swirling flows of gas. Each dust-collecting unit is represented with the cylindrical body with the tapered hopper, the first tangential inlet nozzle, inlet swirler in the second inlet nozzle and dust extracting beveled washer installed on its outer surface. The body is also provided with axial outlet nozzle for the cleaned gas and dust discharge nozzle where flood-gate is installed. The system is also provided with the source of clean air, the chokes installed on the pipelines and separating concentrator including cylindrical swirling chamber linked with inlet chamber provided with tangential inlet. There is axial pipe in the swirling chamber to discharge gas flow with less dust concentration. The swirling chamber outlet is located at the opposite side from inlet chamber. Side nozzle is mounted on the surface of swirling chamber to discharge gas flow with higher dust concentration. Tapered hopper of the fist dust-collecting unit is provided with dust-laden gas outlet nozzle. Cleaned gas source is connected to the tangential inlet of separating concentrator having side nozzle connected to the tangential inlet nozzle of the first dust-collecting unit. The axial outlet nozzle of the first dust-collecting unit is linked with the suction nozzle of the fan. Clean air source is coupled with the pipeline provided with choke and with inlet swirler of the first dust-collecting unit. Besides, axial pipe of the separating concentrator is coupled with the pipeline provided with choke and with the pipeline connecting clean gas source with inlet swirler of the first dust-collecting unit. The dust-laden gas nozzle of the first dust-collecting unit is linked with the tangential inlet nozzle and inlet swirler of the second dust-collecting unit. The axial outlet nozzle of the second dust-collecting unit is provided with the suction nozzle of the fan.

EFFECT: effective cleaning if dust-laden gas flow containing highly-disperse particles.

3 dwg, 1 ex

Vortex apparatus // 2341335

FIELD: mechanics.

SUBSTANCE: vortex apparatus comprises casing wit upper and lower covers, the lower one making a condensate collector, gas inlet/outlet and condensate outlet branch pipes, partitions, vortex pipe, initial compressed gas flow rate control device and condensate-separation units. Aforesaid vortex pipe includes a cold flow and hot flow pipes. Initial compressed gas flow rate control device incorporates a screw-type tightening device (STD) with adjusting washer furnished with a cross-piece with stem arranged in the STD membrane hole. The said stem passes via the cold flow pipe and through the gland in the upper cover out from the apparatus and is furnished with the rotation drive. The condensate-separation units comprise pipe laid between the said partitions, two pairs of crosswise slots arranged opposite to each other on the hot flow pipe at the distance of (1.25 to 1.45) d, where d is the pipe ID, from the STD edge and shifted relative to each other by 90°. Note that the said slots are arranged along the axis at the distance of (0.15 to 0.25) d. The circular chamber outlet channels, inside the hot flow pipe, are terminates at the gap between the casing wall and thin-wall cylinder. The hot flow pipe outlet is furnished with a nozzle and thin-wall cylinder is provided with confuser-diffuser element making an injector.

EFFECT: control over initial compressed gas flow rate by external effects and higher efficiency of condensation-separation processes.

1 cl, 4 dwg

Dust separator // 2325953

FIELD: mechanics filtration.

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EFFECT: increase in dust separator efficiency.

2 cl, 2 dwg, 3 tbl, 5 ex

FIELD: production of ameliorant based on natural bischofite, phosphorites, metallurgical production wastes in the form of slag, used etching solutions employed in etching of ferrous metals with sulfuric acid, and used electrolytes utilized in galvanic plating.

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EFFECT: improved quality of ameliorant, reduced consumption of power and decreased production costs in obtaining of ameliorant.

3 cl, 1 dwg, 16 tbl

FIELD: separation of heterogeneous dispersed systems; devices for centrifugal separation of liquids from mechanical admixtures in hydraulic cyclone clearances; metallurgy and metalworking industry.

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EFFECT: enhanced efficiency.

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Hydrocyclone // 2230614

The invention relates to the field of engineering, namely the dry dust collecting devices that can be used to capture fine and coarse bulk materials in the food industry and in the production of building materials, metallurgy and other industries requiring clean air or gas

Spray // 2187383
The invention relates to a technique of sputtering current substances, liquid, semi-liquid, bulk and can find application in various industrial processes, for example for cooling and lubricating the cutting sprayed liquids for spraying and painting of surfaces, as well as in medicine and agriculture

FIELD: mechanics.

SUBSTANCE: method of separating solid phase from gas flow containing solid phase in the amount of over 100 mg/Nm3 comprises the following stages, i.e. (a) separation of solid phase from gas flow with the help of separator designed for separation of gas from solid phase for gas flow to contain solid phase in the amount of less than 50 mg/Nm3 and to produce lower product comprising separated solid phase and a part of gas flow, (b) separation of a part of solid phase from the said lower product with the help of cyclone wherein solid phase and gas flow are produced, the said flow still containing an amount of solid phase, (c) bringing gas flow produced in stage (b) in contact with water to separate solid phase and produce gas flow with solid phase in the amount of 0 to 50 mg/Nm3 and, finally, (d) integrating gas flows with lower solid phase content produces at stages (c) and (a).

EFFECT: lower content of solid phase in exhaust gases.

9 cl, 1 dwg, 1 tbl

FIELD: mechanics.

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SUBSTANCE: invention is related to dry dedusting of gases and can be applied in various industries, primary in metallurgy industry. Dust-laden gas from dust release sources is fed to direct-flow dust-arresting device via gas pipelines with valves and fitting of axial feed of dust-laden gas. Gas is whirled in guiding axial device upstream the separation chamber and dust is rejected to the hopper via window in separation chamber. Preliminary purified gas is fed to fine gas filter to filter gas, divert purified gas and unload dust resulted after fine gas filtering. Moreover dust-laden gas is additionally fed to direct-flow dust-arresting device, which is installed upstream the separation chamber at discharge of the guiding axial device, via guiding device for tangential feed of dust-laden gas where gas is whirled in the direction same as in the guiding axial device. Rejection of dust to hopper from separation chamber is performed in tangential direction through the window in form of slot port provided lengthwise the separation chamber for tangential rejection of dust.

EFFECT: increased efficiency of gas purification, primary of dust-laden gas from several dust release sources.

4 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: filer-cyclone incorporates a vertical cylindrical housing with a taper bottom furnished with a dust removal union and that feeding dusted gas flow into the said cyclone and arranged tangentially to the said housing, a cover with a union to withdraw purified gas, a rotary exhaust pipe representing a filter element and a windmill. The said windmill is fitted in the purified gas discharge union above the exhaust pipe and driven by the purified gas flow. Here note that the said windmill rotation is transmitted to the exhaust pipe by a belt and a friction gearing.

EFFECT: dust collection higher efficiency, higher reliability and longer life.

2 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: system incorporates a fan, pipelines, fist and second whirlwind dust-collectors, each comprising a cylindrical casing with an upper tangential inlet branch pipe, a swirler communicating with the lower inlet branch pipe and an axial outlet branch pipe. The said system includes also a separator-concentrator comprising a cylindrical whirlwind chamber communicating with the inlet chamber furnished with the tangential inlet. The aforesaid whirlwind chamber houses an axial pipe to withdraw the lower concentration dust flow, the chamber outlet being arranged on the side opposite the whirlwind chamber inlet chamber. The said whirlwind chamber side surface accommodates a side branch pipe to withdraw the larger concentration dust flow. The dust collectors communicate with each other via the aforesaid concentrator-separator. The initial gas feed pipeline is connected to the first dust collector upper and lower inlet branch pipes and to concentrator-separator whirlwind chamber tangential inlet communicating with the first dust collector outlet branch pipe. The concentrator-separator whirlwind chamber axial pipe communicates with the second dust collector swirler, while the whirlwind chamber side branch pipe communicates with the second dust collector tangential inlet branch pipe, the said second dust collector axial outlet branch pipe being communicated with the fan suck-in branch pipe.

EFFECT: higher efficiency of gas purification.

3 dwg

FIELD: mechanical engineering industry; automobile industry; other industries; device of neutralization of the toxic components of the exhaust gas emissions.

SUBSTANCE: the invention is pertaining to the field of mechanical engineering industry, in particular, to the devices of purification and neutralization of the air medium from harmful substances: the finely-dispersed particles and the toxic gases. The device contains the ultraviolet emitter consisting of, at least, one ultraviolet lamp made out of the quartz glass with the continuous emission spectrum in the range of 190-420 nanometers, which is built in the body so, that the being purified passes at the speed of 0.1-0.5 m\s in the annular space between the UV-lamp and the body, and the suppressor of rate speed of the non-stationary gas streams having the vanes mounted at the angle of 80°. The device is supplied with the collector of the dispersion particles connected to the body at the outlet of the device. In the collector there is the built in conical gas duct with the central angle of 20° made in the form of the spiral with the diminishing angle of inclination of its turns and equal at the inlet to the inclination angle of the vanes of the speed suppressor and to 0° at the outlet of the gas duct with the maximum ratio of the diameters of the body, the inlet and outlet holes of flue 3:1:5, and having on the outer surface not less than one annular slot with the arc size of 180°. In the collector there is the built-in electric filter, which working area diameter is equal to the diameter of the outlet of the gas duct. The collector has the hole for the pure gas outlet and is made detachable. The technical result of the invention is: development of the effective device of neutralization of the toxic ingredients of the dusty gas outbursts, including the gas outbursts with the high concentration of the finely dispersed dust.

EFFECT: the invention ensures development of the effective device of neutralization of the toxic ingredients of the dusty gas outbursts, including the gas outbursts with the high concentration of the finely dispersed dust.

2 cl, 4 dwg, 1 tbl

FIELD: sorption type filters for purifying of air from toxic substances including radioactive dust, biological aerosols, toxicants, in particular, destruction of chemical weapons, absorption of hazardous admixtures from process air of industrial premises, as well as for purifying of ventilation waste.

SUBSTANCE: filter has cylindrical casing with bottom, inlet and outlet branch pipes, cover, and also filtering member and sorption unit, which are located within casing in axially aligned relation therewith. Filtering member is fixed on pin connected to casing bottom, and sorption unit is biased by detachable cover. Ratio of sorption unit height, its outer and inner diameters is 1:(0.97-0.99):(0.76-0.77). Filter of such design allows operational life to be increased by 2-3 times.

EFFECT: wider operational capabilities, increased efficiency, reduced air flow resistance, and provision for replacement of used filtering member and sorption unit.

1 dwg

FIELD: chemical industry; building industry, heat-and-power industry; other industries; installations for purification of the industrial gases from the dust.

SUBSTANCE: the invention is intended for purification of the industrial gas-dust outbursts predominantly from the drying drums in the building, chemical, heat and power and other industries. The installation includes the bunch of the cyclones, the ventilating wet dust-catcher and the ventilating system including as the stimulators of the traction two fans sequentially installed along the gas route. The first fan from the supply side is connected to the inlet fitting pipe of the wet dust catcher, and the second fan from the inlet side - to its outlet fitting pipe. The technical result of the invention is provision of the ecological safety of the production process at the broad range of the production parameters variation, which is achieved by extension of the functional capabilities of the ventilation system and the phase of the wet dust catching.

EFFECT: the invention ensures the ecological safety of the production process at the broad range of the production parameters variation, extension of the functional capabilities of the ventilation system and the phase of the wet dust catching.

1 dwg

FIELD: natural gas industry; purification of gases from dispersible impurities.

SUBSTANCE: the invention is intended for purification of gases from dispersible impurities and may be applied in the pressure pneumatic transport systems and production lines of processing of dispersible materials mainly with non-stationary streams. The method of air purification provides for action of inertial forces on a dispersible material in a discharger, withdrawal of the air from the discharging gear and action of the centrifugal forces on the particles in the cyclone apparatus with consequent filtration of the air. Depending on a mode of transportation, 40-80 % of an air stream with the smaller content of the particles are removed from the discharging gear, run through the cyclone apparatus, from which up to 30-90 % of the air stream with the smaller content of the particles fed into the cyclone apparatus are withdrawn and directed for filtration, and 10-70 % from the air stream with high content of the particles fed into the cyclone apparatus are through a damper of braids removed in the filtering dust collector of the cyclone apparatus. Other part of the air stream in amount of 20-60 % with high concentration of the particles is removed from the discharging gear into a collector of the dispersible material, whence it is removed into the cyclone apparatus, from which up to 10-50 % of the air stream with the small contents of p[articles fed into the cyclone apparatus are removed and directed for filtration, and 50-90 % of the air stream with a high content of the particles fed into the cyclone apparatus through the damper of braids removed into the filtering dust collector of the cyclone apparatus. The technical result consists in the continuously high efficiency of trapping of the thinly dispersed materials at different modes of transportation at the constantly high productivity with preservation of the service life of the bag filters.

EFFECT: the invention ensures continuously high efficiency of trapping of the thinly dispersed materials at different modes of transportation and constantly high productivity with preservation of the service life of the bag filters.

1 dwg, 3 ex

Filter-cyclone // 2240869
The invention relates to a device for air cleaning of industrial enterprises from dust, in particular to the collector with granular filter material

FIELD: natural gas industry; purification of gases from dispersible impurities.

SUBSTANCE: the invention is intended for purification of gases from dispersible impurities and may be applied in the pressure pneumatic transport systems and production lines of processing of dispersible materials mainly with non-stationary streams. The method of air purification provides for action of inertial forces on a dispersible material in a discharger, withdrawal of the air from the discharging gear and action of the centrifugal forces on the particles in the cyclone apparatus with consequent filtration of the air. Depending on a mode of transportation, 40-80 % of an air stream with the smaller content of the particles are removed from the discharging gear, run through the cyclone apparatus, from which up to 30-90 % of the air stream with the smaller content of the particles fed into the cyclone apparatus are withdrawn and directed for filtration, and 10-70 % from the air stream with high content of the particles fed into the cyclone apparatus are through a damper of braids removed in the filtering dust collector of the cyclone apparatus. Other part of the air stream in amount of 20-60 % with high concentration of the particles is removed from the discharging gear into a collector of the dispersible material, whence it is removed into the cyclone apparatus, from which up to 10-50 % of the air stream with the small contents of p[articles fed into the cyclone apparatus are removed and directed for filtration, and 50-90 % of the air stream with a high content of the particles fed into the cyclone apparatus through the damper of braids removed into the filtering dust collector of the cyclone apparatus. The technical result consists in the continuously high efficiency of trapping of the thinly dispersed materials at different modes of transportation at the constantly high productivity with preservation of the service life of the bag filters.

EFFECT: the invention ensures continuously high efficiency of trapping of the thinly dispersed materials at different modes of transportation and constantly high productivity with preservation of the service life of the bag filters.

1 dwg, 3 ex

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