Separation system with vorject dust separator

FIELD: process engineering.

SUBSTANCE: invention relates to gas cleaning of dust and may be used in various industrial branches. Proposed dust separator comprises cylindrical housing 1, axial dusty gas intake with swirler 4, ejector 7, spinner 5 and conical bumper washer. Housing top accommodates axial clean gas discharge branch pipe and secondary flow peripheral intake 8 with swirler 9. Said axial clean gas discharge branch pipe is communicated with air duct 10 provided with inlet branch pipe 23 of the frame sleeve filter. Filter comprises housing 17, filtration section 21 with boxes 22 and 23 for dusty gas intake and clean gas discharge, filtration sleeves 16 with frame 19, tubular grating, dust collection bin 18 and regeneration mechanism. The latter consists of solenoid valve 11, compressed air feed pipe 12, Venturi nozzle 14 and regeneration automatic control device 15. Filter comprises also temperature pickup, dust collector dust level alarm pickup, thermal automatic annunciator detector and manifold with nozzles to be connected to fire fighting system incorporating control unit arranged in filtration section outlet box, their outlet being connected to common microprocessor.

EFFECT: higher efficiency of separating low-specific weight particles and system reliability.

1 dwg

 

The invention relates to techniques for gas purification from dust and can be used in various industries in pneumatic systems, pneumology, aspiration.

The closest technical solution to the declared object is vortex dust collector according to the patent of Russian Federation №2337763, 01D 45/12 from 15.06.04 containing cylindrical body with a conical hopper and located in the lower part of the axial suction inlet, fairing and fender washer placed on the end surface of the cylinder, and placed at the top of the pipe to enter the secondary flow and the outlet connected to the filter (prototype).

The disadvantage of the prototype is the relatively low efficiency of dust collection.

The technical result - improving the efficiency of dust collection.

This is achieved by the fact that the aspiration system with vortex dust collector, containing a two-stage system gazopyleochistnyh, where the first step of purification of the gas mixture is vortex dust collector, working on the principle of counter-swirling flows, and a second step of purification filter, vortex dust collector comprises a cylindrical housing, the axial input dusty gas swirler and the ejection nozzle, which forms with the wall entering the annular channel formed by konicek the mi surfaces respectively of the axial input and ejection nozzle, Radome and tapered fender washer, and placed in the upper part of the housing axial outlet for the purified gas output and peripheral input secondary flow with swirl, and at the end of the axial pipe purified gas is fixed duct connected to the inlet pipe frame filter bag with pulsed blowing, comprising a housing, a filter section with boxes to enter dusted and cleaned out the air filter sleeve with frame tubular grate, a hopper for collecting dust and the regeneration mechanism comprising a solenoid valve, a pipe for supplying compressed air nozzles, nasdaw of the Venturi device automatic regeneration control, the United General microprocessor, and the filter is further provided with a temperature sensor, and in the hopper for dust collection set alarm level sensor dust in the output box of the filter section has automatic thermal sensor-detector, the outputs of which are connected to a common microprocessor, and the output duct of the filter section of the dust collector is installed manifold with nozzles for connection to the fire-extinguishing system control unit which is connected with a common microprocessor.

The drawing shows a diagram of the aspiration system with apparatus HICP and frame filter.

The aspiration system with devices is ω HICP and frame filter is a two-stage system of gazopyleochistnyh, where the first step of purification of the gas mixture is vortex dust collector, working on the principle of counter-swirling flows (HICP)and the second frame filter.

Vortex dust collector comprises a cylindrical housing 1 with the hopper 2, the axial input 3 swirler 4, Radome 5, fender washer 6 and the ejection nozzle 7, the input 8 of the secondary flow with swirl 9, an axial outlet for the purified gas output.

Axial socket output pre-cleaned gas is connected by a duct 10 to the inlet side 23 of frame filter

Frame bag filter with impulse blowing includes a housing 17, the filtering section 21 with the ducts 22 and 23 to enter dusted and cleaned out the air filter sleeve 16 with the frame 19, the pipe grate 20, the hopper 18 for collecting dust and mechanism of regeneration of the filter, consisting of a solenoid valve 11, pipe 12 for supplying compressed air nozzle 13; Venturi nozzle 14, the device 15 automatic regeneration control. Frame bag filter equipped with a sprinkler system (not shown)that includes the following elements. In the case of the filter unit has a temperature sensor in the hopper dust - emergency level sensor dust in the output duct - heat automatic sensor-detector, the outputs of which are connected to a common microprocessor placed in the control Cabinet, and in the output box installed manifold with nozzles for connection to the fire-extinguishing system control unit which is connected with a common microprocessor, and the regeneration system bag filters contains a control unit, which is connected in electronic communication with a common microprocessor.

The aspiration system with apparatus HICP and frame filter works as follows.

Dust and contaminated air stream enters through the input 8 and, whirling vane swirler 9, moves down in the housing 1. To meet him from the bottom through the axial input 3 is fed to the primary dust-Laden gas, which is twisted axially vane swirler 4 in the same direction as the downward secondary thread. Dust particles under the influence of centrifugal forces to move towards the walls of the housing 1. Swirling the secondary stream, dashing against the bumper washer 6, partially exploded, interacting with the primary flow coming from the Central input 3. Dust particles having greater inertia, are separated from the flow to rotate the fender washers 6 and through the gap between it and the walls of the casing 1 are emitted into the hopper 2. The hopper 2 is a vacuum created due to the ejection nozzle 7 that is installed in the axial input 3 against the swirler 4. Sucked by the ejector flow, which may contain very fine particles of dust, especially with small the m specific gravity and size less than 10 microns (light solid particles), transferred to the vanes of the swirler 4, and the maximum radius that provides maximum spin and conclusion from the periphery of the gas jet in a secondary thread and then again in the hopper 2. It promotes optimal interaction of the swirling jets of the primary flow with a downward swirling flow of the secondary flow and to improve the efficiency of dust collection due to return to the hopper dust particles with low specific weight. Installing a filter on the output of cleaned gas can provide a high separation efficiency of small particles with low specific weight and to increase the dust content in the air of working zone to sanitary and hygienic norms.

The filter works as follows.

The inlet 23 of the frame of the filter is connected by a duct 10 with the output axis of the socket to output the cleaned gas in the vortex dust collector.

The cleaned air is supplied to the filter section 21 of the filter bag, and then inside of vertically arranged filter elements 16 in the form of a filter sleeve to the frame, and then into the duct 22 to the clean gas outlet located above the filter section 21.

Under the housing 17 is conical hopper 18 with piliigriiim device type "double flasher (not shown) or a conical hopper with auger with dust valve with manual actuator piliigriiim device is istom type rotary rotary shutter, as well as local control panel screw and gateway rotary shutter. The hopper is mounted level sensor dust (not shown).

The filter housing is equipped with a support rack (not shown)made in the form of at least three racks rigidly interconnected by horizontal rods, and inclined ribs, one end of which is connected to the racks and rods, and the other with the hopper 18 of the filter. On a rack rigidly mounted and fixed between itself and the housing 17 of the filter stairs and railings.

As the material of the filter bag filter can be applied: non-woven polyester reinforced internal frame mesh; woven aramid reinforced internal frame mesh; fine-fibered non-woven polyester reinforced internal frame net with a special coating; water-resistant non-woven polyester reinforced internal frame net with a special coating; non-woven, reinforced internal frame mesh polyester, antistatic with maslovlagootdelitel impregnated with a smooth surface; fine-fibered non-woven polyester reinforced internal frame net with a special coating. Fine-fibrous structure of the filter element allows to obtain very low rates of residual dust content is not more than 0.2 mg/is 3.

Regeneration of the filter. Excessive pressure compressed air for regeneration is 0.4 to 0.8 PA; the pulse is 0,1...0,2 C. the frequency of the pulses depends on the nature of changes in the resistance of the filter. In this method, mechanical shaking, providing deformation of the tissue and the destruction of the dust layer, combined with a reverse purge. The strengthening effect of reverse purge contributes installed at the entrance to the hose pipe Venturi, as the ejection sleeve purified gases. Usually simultaneously blown 5...10% sleeves without interruption of the filtration process. Sleeve length does not exceed 2,5...3,5 m; solenoid valves compressed air is automated. In such filters, the load on gas is usually in 2...4 times higher than in filters with shaking and 1.5...6 m/min

To optimize dust removal and for its safe operation in the filter housing has a temperature sensor (not shown)in the hopper dust - emergency level sensor dust in the output duct 22 - thermal automatic sensor-detector, the outputs of which are connected to a common microprocessor placed in the control Cabinet and in the output box installed manifold with nozzles for connection to the fire-extinguishing system control unit which is connected with the others by the microprocessor, and the regeneration system bag filters contains a control unit, which is connected in electronic communication with a common microprocessor.

Thermal sensor-detector and manifold with injectors fire extinguishing system is installed in the output duct 22 of the filter because it is an output link in the proposed device, and to prevent the spread of flame in case of fire further along the ventilation channels, these systems establish here that will increase the reliability and security of the entire device. The work of the collector nozzle is based on the principle of opening the emergency solenoid valve feed water fed to the valve control signal from a common microprocessor that processes the signal from the heat sensor of the detector, which in turn responds to the temperature increase in the output box, until ignition of dust aerosols and filtering media of the filter block.

The powder fire extinguishing system (not shown) occurs in the second embodiment, if the first stage fails, for example, an electromagnetic valve in the water supply, or is disconnected the water supply system, then the system will work powder fire extinguishing, and the operation of these systems is provided from a microprocessor, which may be the inpatient (for example, in the control Cabinet) or be integrated in a control console (not shown), so that you in case of an accident to manage the process of fire, stopping the dissemination of fire, which in General will increase the security of the entire system of air cleaning from dust.

Dust collecting devices of this type are intended for a Central aspiration system. Filters with impulse regeneration is widely used in technological processes with small and large capacity gas at ordinary and high temperatures. In the apparatus there is a reduction of vibroacoustic energy, since the filter elements are simultaneously aerodynamic silencer active (sorption) type.

The aspiration system with vortex dust collector, containing a two-stage system gazopyleochistnyh, where the first step of purification of the gas mixture is vortex dust collector, working on the principle of counter-swirling flows, and a second step of purification filter, vortex dust collector comprises a cylindrical housing, the axial input dusty gas swirler and the ejection nozzle, which forms with the wall entering the annular channel formed by conical surfaces, respectively, the axial input and ejection nozzle, and conical fairing fender washer and placed in in the RNA part of the body axial outlet for the purified gas output and peripheral input secondary flow with swirl, characterized in that the axial end of the pipe is cleaned, fixed gas duct connected to the inlet pipe frame filter bag with pulsed blowing, comprising a housing, a filter section with boxes to enter dusted and cleaned out the air filter sleeve with frame tubular grate, a hopper for collecting dust and the regeneration mechanism consisting of a solenoid valve, a pipe for supplying compressed air nozzles, nasdaw of the Venturi device automatic regeneration control, United with a common microprocessor, and the filter is further provided with a temperature sensor, and in the hopper for dust collection set alarm level sensor dust, in the output box of the filter section has automatic thermal sensor-detector, the outputs of which are connected to a common microprocessor, and the output duct of the filter section of the dust collector is installed manifold with nozzles for connection to the fire-extinguishing system control unit which is connected with a common microprocessor.



 

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2 ex, 1 tbl, 5 dwg

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1 dwg, 3 ex

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1 dwg

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1 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: 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: 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: process flows, filters.

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: mechanics.

SUBSTANCE: proposed system incorporates pipelines, first and second vortex dust separators, each incorporating a cylindrical casing with an upper tangential inlet branch pipe, a swirler communicating with the lower inlet branch pipe furnished with a tapered dust baffle washer arranged along the casing axis, an axial outlet branch pipe and a taper dust collector bin with a dust release branch pipe furnished with a rotary lock and a fan with its intake branch pipe communicating with the first dust separator axial outlet branch pipe and its pressure branch pipe communicating with the second dust separator inlet branch pipes. The proposed system is additionally furnished with the third vortex dust separator that features a similar design but smaller overall sizes and lower efficiency compared to the aforesaid first and second dust separators. Note that the aforesaid third dust separator inlet branch pipes communicate with the second separator bin and its axial outlet branch pipe is connected to the sleeve filter, its outlet being connected to the first dust separator lower inlet branch pipe. Note here that the starting gas feed pipeline communicates with the first dust separator upper and lower inlet branch pipes.

EFFECT: higher efficiency of purifying gas with finely-dispersed particles.

1 dwg

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: 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

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