CN203971664U - Gravity inertial pocket type complex dust collector - Google Patents
Gravity inertial pocket type complex dust collector Download PDFInfo
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- CN203971664U CN203971664U CN201420338729.5U CN201420338729U CN203971664U CN 203971664 U CN203971664 U CN 203971664U CN 201420338729 U CN201420338729 U CN 201420338729U CN 203971664 U CN203971664 U CN 203971664U
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Abstract
The utility model discloses gravity inertial pocket type complex dust collector, comprise at least one dust collector box body, in every dust collector box body, be divided at least two and be listed as independently filter chamber, Mei Lie filter chamber is made up of the pre-dirt pocket of the gravity inertial that has air inlet and filter bag filter chamber, Mei Lie filter bag filter chamber is had the card of filter bag to be divided into the upper air-purifying chamber that has gas outlet by outstanding, and the lower smoke chamber communicating with the pre-dirt pocket of gravity inertial, in upper air-purifying chamber, be provided with action of low-voltage pulse spraying and blowing organ, in the pre-dirt pocket of gravity inertial, be provided with the pre-dedusting distributor gear of flue gas, the pre-dirt pocket of all gravity inertials communicates with the smoke-intake pipe road that is provided with import baffle door simultaneously, in smoke-intake pipe road, be provided with flue gas cool-down mechanism, in the smoke-intake pipe road at the pre-dirt pocket air inlet of gravity inertial place, be arranged with the three-dimensional air distribution mechanism of flue gas, each upper air-purifying chamber communicates with the smoke lateral that is provided with outlet damper door respectively, and all smoke laterals communicate with smoke house steward.The utlity model has the long advantage of life of bag filter.
Description
Technical field
The utility model relates to deduster, is specifically related to gravity inertial pocket type complex dust collector.
Background technology
Filter bag is the critical component of sack cleaner dedusting.The structure of sack cleaner is at present: comprise dust collector box body, dust collector box body is separated into upper air-purifying chamber and lower smoke chamber by card, on card, vertical hanging has the filter bag that some and upper air-purifying chamber is connected, lower smoke chamber at dust collector box body offers air inlet, upper air-purifying chamber offers gas outlet, smoke-intake pipe road is connected with the air inlet of lower smoke chamber, smoke pipeline is connected with the gas outlet of upper air-purifying chamber, also be connected with gas bypass pipeline in smoke-intake pipe road, gas bypass pipeline is connected with ambient atmosphere, on gas bypass pipeline, be provided with the valve of energy folding gas bypass pipeline.The shortcoming of this sack cleaner is: (1) enters the ash-laden gas of smoke chamber dust collector box body flue-gas temperature from smoke-intake pipe road is generally all very high, in the time that flue-gas temperature exceedes the limiting temperature that filter bag can bear, filter bag works in overtemperature flue gas and very easily damages and lost efficacy, (2) enter the ash-laden gas air-flow skewness of smoke chamber dust collector box body from smoke-intake pipe road, be that ash-laden gas enters lower smoke chamber with lower air-flow distribution consistency degree, when air-flow ash-laden gas pockety enters after lower smoke chamber, can cause the filter dirt load of whole deduster inhomogeneous, compare the filter bag of concentrated area at air-flow because filter dirt duty ratio is larger, filtration velocity is higher, very easily there is filter bag damage phenomenon, once and there is the breakage of filter bag, the air current flow resistance in this damaged filter bag region can be lower, cause air-flow more concentrated, and then cause the filter bag damage in larger region, (3) because the ash-laden gas gas velocity that enters smoke chamber dust collector box body from smoke-intake pipe road flows very high, and (dust size is greater than 50 μ m) in ash-laden gas, to contain a large amount of big dust particles, when ash-laden gas with higher flue gas flow rate after smoke-intake pipe road enters lower smoke chamber, due in lower smoke chamber without any the pre-dedusting distributor of flue gas, the ash-laden gas that enters lower smoke chamber can directly impact filter bag, big dust particle in ash-laden gas also can directly wash away filter bag simultaneously, thereby make filter bag that breakage very easily occur, so not only greatly reduce the service life of filter bag, and reduce the efficiency of dust collection of sack cleaner, (4) there is no the cooling protection device that can lower the temperature to flue gas, when sack cleaner generation flue-gas temperature too high and make sack cleaner normally when the unusual service condition such as dedusting, all to open gas bypass pipeline at present, ash-laden gas is directly entered to atmosphere without filtering, until by unusual service condition maintenance closed gas bypass pipeline again, the easy like this pollution causing environment.
Utility model content
The purpose of this utility model is to provide and a kind ofly can extends life of bag filter, gravity inertial pocket type complex dust collector that efficiency of dust collection is high.
For achieving the above object, the utility model has adopted following technical scheme: described gravity inertial pocket type complex dust collector, comprise smoke-intake pipe road, and at least one dust collector box body, every dust collector box body inside is separated at least two independent sealed filter chambers of row, Mei Lie filter chamber forms by enter the pre-dirt pocket of gravity inertial and the filter bag filter chamber that cigarette direction distributes successively along flue gas, Mei Lie filter bag filter chamber is separated into upper air-purifying chamber and lower smoke chamber by card respectively, each lower smoke chamber is connected with the pre-dirt pocket of gravity inertial of same column, on the card of each filter bag filter chamber vertical hanging have some and corresponding on the filter bag that is connected of air-purifying chamber, on each, in air-purifying chamber, be respectively arranged with the action of low-voltage pulse spraying and blowing organ that can carry out to the filter bag in lower smoke chamber jetting deashing, the pre-dirt pocket of each gravity inertial offers air inlet, in the pre-dirt pocket of each gravity inertial, enter cigarette direction along flue gas and be arranged at intervals with successively respectively the pre-dedusting distributor gear of some flue gases, the pre-dirt pocket of all gravity inertials is respectively by air inlet while and smoke-intake pipe road are connected separately, on smoke-intake pipe road, be provided with the import baffle door in energy folding smoke-intake pipe road, in smoke-intake pipe road, enter cigarette direction along flue gas and be arranged at intervals with successively some flue gas cool-down mechanisms and pre-spray equipment, in the smoke-intake pipe road at the pre-dirt pocket air inlet of each gravity inertial place, be respectively arranged with the three-dimensional air distribution mechanism of flue gas, air-purifying chamber offers gas outlet on each, each upper air-purifying chamber is connected with a smoke lateral by gas outlet respectively, all smoke laterals are connected with smoke house steward simultaneously, are respectively arranged with the outlet damper door of energy folding smoke lateral on every smoke lateral.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: the structure of the pre-dedusting distributor gear of described flue gas is: comprise some front flute profile baffle plate and the rear flute profile baffle plates that are vertically installed in the pre-dirt pocket of gravity inertial, the notch of all front flute profile baffle plates all enters the setting of cigarette direction along flue gas, the notch of all rear flute profile baffle plates all enters the setting of cigarette direction against flue gas, every two adjacent front flute profile baffle plates simultaneously with one after flute profile baffle plate interlock and take, flute profile baffle plate and its interlock and leave gap between the front flute profile baffle plate of taking after every.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: all front flute profile baffle plates and all rear flute profile baffle plates are between left and right and are set up in parallel every equalization respectively, the gap between all rear flute profile baffle plates and adjacent front flute profile baffle plate is identical; The bottom of every front flute profile baffle plate respectively lower than the bottom of filter bag and and dust collector box body bottom between leave gap, after every the bottom of flute profile baffle plate respectively lower than the bottom of filter bag and and dust collector box body bottom between leave gap.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: the structure of described flue gas cool-down mechanism is: comprise that spacing parallel arranging is arranged at the some two-fluid pipelines in smoke-intake pipe road, one end sealing of two-fluid pipeline, other end opening, in two-fluid pipeline, be separated into side by side independently gas passage and aquaporin, on every two-fluid pipeline, be evenly arranged at intervals with some gas-liquid two-phase atomizers that are simultaneously communicated with gas passage and aquaporin in this root two-fluid pipeline, the gas passage of all two-fluid pipelines is connected by the admission line while and the compressed air reservoir that are connected with this gas access portal end respectively, on admission line, be provided with electromagnetic valve of gas circuit, the aquaporin of all two-fluid pipelines is connected by the inlet channel while and the water tank that are connected with this aquaporin openend respectively, on inlet channel, be provided with waterway electromagnetic valve.
Further, aforesaid gravity inertial pocket type complex dust collector wherein: inlet channel is connected with water return pipeline, is provided with backwater magnetic valve on water return pipeline.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: the structure of the described three-dimensional air distribution mechanism of flue gas is: in the smoke-intake pipe road at the pre-dirt pocket air inlet of gravity inertial place, be provided with air distribution plate, on a wherein side of the upper and lower side of air distribution plate and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of the upper and lower side of air distribution plate and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.30-0.35 times of air distribution plate length, on a wherein side of air distribution plate left and right side and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of air distribution plate left and right side and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.30-0.35 times of air distribution plate width, on air distribution plate, be evenly distributed with some wind distributing holes, the bore dia scope of wind distributing hole is 150-165mm, the percent opening of air distribution plate is 0.32-0.40.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: on a wherein side of the upper and lower side of air distribution plate and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of the upper and lower side of air distribution plate and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.33 times of air distribution plate length, on a wherein side of air distribution plate left and right side and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of air distribution plate left and right side and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.33 times of air distribution plate width, on air distribution plate, be evenly distributed with some wind distributing holes, the bore dia of wind distributing hole is 160mm, the percent opening of air distribution plate is 0.34.
Further, aforesaid gravity inertial pocket type complex dust collector, wherein: the structure of described action of low-voltage pulse spraying and blowing organ is: on each, in air-purifying chamber, be fixed with injection tube, injection tube one end is connected with compressed air cylinder, other end sealing, in injection tube, be provided with some nozzles that are communicated with it, each nozzle spout is relative with the upper bag mouth of a filter bag down.
By the enforcement of technique scheme, the beneficial effects of the utility model are: (1) can make ash-laden gas enter dust collector box body with suitable flue-gas temperature and higher air-flow distribution consistency degree, and can reduce ash-laden gas and enter the flue gas flow rate of dust collector box body, (2) can trap the granule dust of removing more than 10 μ m, greatly reduce big dust particle directly washing away filter bag in ash-laden gas, effectively protect filter bag, also contribute to improve the efficiency of dust collection of deduster, and in reducing ash-laden gas flue gas flow rate, the ash-laden gas that major part can have been filtered again to big dust particle guides to the bottom of filter bag filter chamber, make the ash-laden gas can be from the upwards lifting of filter bag bottom, guarantee that flue gas fully contacts with filter bag, avoid the direct impact of ash-laden gas to filter bag, also make part granule dust lean on gravity own to ash bucket sedimentation, greatly reduce filter bag because of the damaged probability of ash-laden gas impact, effectively extend the service life of filter bag, also improved efficiency of dust collection.
Brief description of the drawings
Fig. 1 is the structural representation of gravity inertial pocket type complex dust collector described in the utility model.
Fig. 2 is the structural representation of overlooking direction of Fig. 1.
Fig. 3 is the structural representation of A-A section in Fig. 2.
Fig. 4 is the structural representation of B-B section in Fig. 2.
Fig. 5 is the structural representation of the flue gas cool-down mechanism shown in Fig. 1.
Fig. 6 is the structural representation of the three-dimensional air distribution mechanism of the flue gas shown in Fig. 1.
Fig. 7 is the structural representation of the pre-dedusting distributor gear of the flue gas shown in Fig. 1.
Fig. 8 is the structural representation of overlooking direction of Fig. 7.
Fig. 9 principle schematic that to be ash-laden gas turn to downwards along the front flute profile baffle plate shown in Fig. 7 and rear flute profile baffle plate.
Figure 10 is the ash-laden gas principle schematic that collision turns in the exhaust gases passes of the front flute profile baffle plate shown in Fig. 7 and the formation of rear flute profile baffle plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, shown in Fig. 2, described gravity inertial pocket type complex dust collector, comprise smoke-intake pipe road, and at least one dust collector box body, in the present embodiment, comprise the first dust collector box body 1 and the second dust collector box body 2, the first dust collector box body 1 is all identical with the structure of the second dust collector box body 2, only describe as an example of the structure of the first dust collector box body 1 example below, the structure of the first described dust collector box body 1 is: the first dust collector box body 1 inside is separated into the independent sealed filter chamber of two row, Mei Lie filter chamber forms with filter bag filter chamber by enter the pre-dirt pocket 6 of gravity inertial that cigarette direction distributes successively along flue gas, Mei Lie filter bag filter chamber is separated into upper air-purifying chamber 5 and lower smoke chamber 7 by card 4 respectively, each lower smoke chamber 7 is connected with the pre-dirt pocket 6 of gravity inertial of same column, on the card 4 of each filter bag filter chamber vertical hanging have some and corresponding on the filter bag 8 that is connected of air-purifying chamber 5, on each, in air-purifying chamber 5, be respectively arranged with the action of low-voltage pulse spraying and blowing organ 9 that can carry out to the filter bag 8 in lower smoke chamber jetting deashing, the pre-dirt pocket 6 of each gravity inertial offers respectively air inlet 10, in the pre-dirt pocket 6 of each gravity inertial, enter cigarette direction along flue gas and be arranged at intervals with successively respectively the pre-dedusting distributor gear 11 of some flue gases, the pre-dirt pocket 6 of all gravity inertials of the first dust collector box body is respectively by 10 whiles of air inlet and smoke-intake pipe road 12 are connected separately, on smoke-intake pipe road 12, be provided with the import baffle door 16 in energy folding smoke-intake pipe road 12, in smoke-intake pipe road 12, enter cigarette direction along flue gas and be arranged at intervals with successively the first flue gas cool-down mechanism 13, the second flue gas cool-down mechanism 131 and the 3rd flue gas cool-down mechanism 132, in the smoke-intake pipe road 12 at the pre-dirt pocket of each gravity inertial 6 air inlet 10 places, be respectively arranged with the three-dimensional air distribution mechanism 14 of flue gas, air-purifying chamber 5 offers gas outlet on each, each upper air-purifying chamber 5 is connected with a smoke lateral 15 by gas outlet respectively, all smoke laterals 15 are connected with smoke house steward 17 simultaneously, are respectively arranged with the outlet damper door 18 of energy folding smoke lateral 15 on every smoke lateral 15,
In the present embodiment, because the structure of the pre-dedusting distributor gear 11 of flue gas of the pre-dirt pocket 6 interior settings of all gravity inertials in the first dust collector box body 1 and the second dust collector box body 2 is all identical, only describe as an example of the structure of a pre-dedusting distributor gear 11 of flue gas in the first dust collector box body 1 example below, referring to Fig. 4, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, the structure of the pre-dedusting distributor gear of described flue gas is: comprise some the front flute profile baffle plates 19 and rear flute profile baffle plate 20 that are vertically installed in the pre-dirt pocket 6 of gravity inertial, the notch of all front flute profile baffle plates 19 all enters the setting of cigarette direction along flue gas, the notch of all rear flute profile baffle plates 20 all enters the setting of cigarette direction against flue gas, every two adjacent front flute profile baffle plates 19 simultaneously with one after flute profile baffle plate 20 interlock and take, after every, flute profile baffle plate 20 and its interlock and leave gap between the front flute profile baffle plate 19 of taking, can not only trap like this and remove the granule dust of particle diameter more than 10 μ m in ash-laden gas, reduce to greatest extent big dust particle directly washing away filter bag, reduce the filter bag probability damaged because big dust particle washes away, effectively protect filter bag, also contribute to improve the efficiency of dust collection of deduster, and can distribute ash-laden gas, make a large amount of ash-laden gas (approximately 80% ash-laden gas) be booted down to the bottom of filter bag 8 in filter bag filter chamber 7, ash-laden gas can fully be contacted with filter bag 8 from the filter bag 8 downward liftings in bottom, avoid ash-laden gas directly to impact filter bag 8, in the present embodiment, all front flute profile baffle plates 19 and all rear flute profile baffle plates 20 are between left and right and are set up in parallel every equalization respectively, and the gap between all rear flute profile baffle plates 20 and adjacent front flute profile baffle plate 19 is identical, the bottom of every front flute profile baffle plate 19 is respectively lower than the bottom of filter bag 8, and and the first dust collector box body 1 bottom between leave gap, after every, the bottom of flute profile baffle plate 20 is respectively lower than the bottom of filter bag 8, and and the first dust collector box body 1 bottom between leave gap, can guarantee that like this this part of ash-laden gas of turning back downward after ash-laden gas and front flute profile baffle plate 19 and 20 collisions of rear flute profile baffle plate can be directed to the bottom of filter bag 8 completely, ash-laden gas can fully be contacted with filter bag from the filter bag 8 downward liftings in bottom, form the best way of contact of flue gas and filter bag, avoid ash-laden gas directly to impact filter bag, also make part granule dust lean on gravity own to ash bucket sedimentation, and then reduce filter bag because of the damaged probability of smoke-shock, extend the service life of filter bag,
In the present embodiment, due to the first flue gas cool-down mechanism 13, the structure of the second flue gas cool-down mechanism 131 and the 3rd flue gas cool-down mechanism 132 is all identical, only describe as an example of the structure of the first flue gas cool-down mechanism 13 example below, shown in Figure 5, the structure of the first described flue gas cool-down mechanism 13 is: comprise that spacing parallel arranging is arranged at the some two-fluid pipelines 21 in smoke-intake pipe road, one end sealing of two-fluid pipeline 21, other end opening, in two-fluid pipeline 21, be separated into side by side independently gas passage 22 and aquaporin 23, on every two-fluid pipeline 21, be from up to down evenly arranged at intervals with some gas-liquid two-phase atomizers 24 that are simultaneously communicated with gas passage in this root two-fluid pipeline 22 and aquaporin 23, gas passage 22 in all two-fluid pipelines 21 is connected by 25 whiles of admission line arm and the admission line house steward 26 that are connected with this gas access portal end respectively, admission line house steward 26 is connected with compressed air reservoir 27, on admission line house steward 26, be provided with electromagnetic valve of gas circuit 28, pressure-reducing valve 29 and gas circuit stop valve 30, aquaporin 23 in all two-fluid pipelines 21 is connected by 31 whiles of inlet channel arm and the inlet channel house steward 32 that are connected with this aquaporin openend respectively, inlet channel house steward 32 is connected with water tank 33, on inlet channel house steward 32, be provided with the first waterway electromagnetic valve 34, the first ball valve 35 and the first water route stop valve 36, by the setting of flue gas cool-down mechanism, can guarantee that ash-laden gas enters dust collector box body with lower flue-gas temperature, thereby needn't install again gas bypass pipeline additional, utilize protection of the environment, improve efficiency of dust collection, in the present embodiment, inlet channel house steward 32 is also connected with water return pipeline 37, is provided with the second waterway electromagnetic valve 38, the second ball valve 39 and the second water route stop valve 40 on water return pipeline 37, in actual applications, all flue gas cool-downs mechanism is by the control of PLC system, be provided with temperature sensor in smoke-intake pipe road 12, temperature sensor is by the temperature feedback in smoke-intake pipe road 12 to PLC system, and whether PLC system starts according to the temperature control flue gas cool-down mechanism of temperature sensor feedback,
In the present embodiment, because the structure of the three-dimensional air distribution mechanism of all flue gases is all identical, only describe as an example of the structure of the three-dimensional air distribution mechanism of one of them flue gas example below, referring to Fig. 3, shown in Fig. 6, the structure of the three-dimensional air distribution mechanism of described flue gas is: in the smoke-intake pipe road 12 at air inlet 10 places of the pre-dirt pocket 6 of gravity inertial, be provided with air distribution plate 41, the air inlet upper edge of the pre-dirt pocket air inlet 10 of the upper side edge of air distribution plate 41 and gravity inertial aligns, between the air inlet lower edge of the pre-dirt pocket air inlet 10 of the lower side of air distribution plate 41 and gravity inertial, leave certain distance m, and this is 0.30-0.35 times of air distribution plate length L apart from m, the air inlet left margin of the limit, left side of air distribution plate 41 and the pre-dirt pocket air inlet 10 of gravity inertial aligns, between the edge, air inlet the right of the pre-dirt pocket air inlet 10 of the right edge of air distribution plate 41 and gravity inertial, leave certain distance n, and this is 0.30-0.35 times of air distribution plate width W apart from n, on air distribution plate 41, be evenly distributed with some wind distributing holes 42, the bore dia scope of wind distributing hole 42 is 150-165mm, the percent opening of air distribution plate 41 is 0.32-0.40, like this when ash-laden gas is after air distribution plate 41, ash-laden gas is intake, side air inlet amount and bottom surface intake equivalent in the wind distributing hole of air distribution plate 41, make ash-laden gas enter dust collector box body from air inlet 10 with higher air-flow distribution consistency degree, and then avoid filter bag because entering the generation of the ash-laden gas air-flow distribution consistency degree too low filter bag damage phenomenon causing of dust collector box body, ash-laden gas is after air distribution plate 41 simultaneously, by with the shock of air distribution plate 41, reduce the flue gas flow rate of ash-laden gas, further avoided the generation of filter bag damage phenomenon, in the present embodiment, the air inlet upper edge of the pre-dirt pocket air inlet 10 of the upper side edge of air distribution plate 41 and gravity inertial aligns, between the air inlet lower edge of the pre-dirt pocket air inlet 10 of the lower side of air distribution plate 41 and gravity inertial, leave certain distance m, and this is 0.33 times of air distribution plate length L apart from m, the air inlet left margin of air distribution plate 41 limits, left side and the pre-dirt pocket air inlet 10 of gravity inertial aligns, between the edge, air inlet the right of the pre-dirt pocket air inlet 10 of the right edge of air distribution plate 41 and gravity inertial, leave certain distance n, and this is 0.33 times of air distribution plate width W apart from n, on air distribution plate 41, be evenly distributed with some wind distributing holes 42, the bore dia of wind distributing hole 42 is 160mm, the percent opening of air distribution plate 41 is 0.34, this set can make ash-laden gas enter dust collector box body with higher air-flow distribution consistency degree from air inlet 10,
In the present embodiment, because the structure of all action of low-voltage pulse spraying and blowing organs 9 is all identical, only the structure of described action of low-voltage pulse spraying and blowing organ 9 is below: on each, in air-purifying chamber 5, be fixed with injection tube, injection tube one end is connected with compressed air cylinder, other end sealing, in injection tube, be provided with some nozzles that are communicated with it, each nozzle spout is relative with the upper bag mouth of a filter bag down, the action of low-voltage pulse spraying and blowing organ 9 of the fixing blowing pipe structure of this employing adopts action of low-voltage pulse purge mode by row online in actual applications, not only good to the ash-removal effect of filter bag, and effectively avoid reentrainment of dust,
In the present embodiment, in smoke-intake pipe road 12, be also provided with pre-spray equipment 43, when boiler ignition start, conventionally want long-time oil firing, if filter bag is not processed in advance when oil smoke passes through filter bag, will cause expendable damage to filter bag; Pre-spraying will first cover a grieshoch on filter material surface, prevent because steam causes stopping up; When deduster is before putting into operation, can carry out degree of depth precoating ash 2mm left and right to filter bag surface by pre-spray equipment 43 like this, make filter bag surface can have enough fine dusts, guarantee that the boiler of applying this deduster can normally move in the time of minimum steady combustion load;
Operation principle of the present utility model is as follows:
First open the import baffle door 16 on smoke-intake pipe road 12, and outlet damper door 18 on all smoke laterals 15, then ash-laden gas is passed into smoke-intake pipe road 12, in the time of ash-laden gas excess Temperature, temperature sensor feedback signal on smoke-intake pipe road 12 is to PLC system, PLC system can first start the first flue gas cool-down mechanism 13, first open the electromagnetic valve of gas circuit 28 on admission line house steward 26, pressure-reducing valve 29 and gas circuit stop valve 30, compressed air in compressed air reservoir 27 is entered in the gas passage 22 in each two-fluid pipeline 21 with each admission line arm 25 through admission line house steward 26, and enter gas-liquid two-phase atomizer 24 from gas passage 22, and then open the first waterway electromagnetic valve 34 on inlet channel house steward 32, the first ball valve 35 and the first water route stop valve 36, condensed water in water tank 33 is entered in the aquaporin 23 in each two-fluid pipeline 21 with each inlet channel arm 31 through inlet channel house steward 32, and enter gas-liquid two-phase atomizer 24 from aquaporin 23, now, compressed air and condensed water spray into smoke-intake pipe road 12 after the interior atomization of gas-liquid two-phase atomizer 24, the surface area of these condensed waters after being atomized increases greatly, can fully mix with ash-laden gas, after being atomized condensed water particle mix with high-temperature dust-containing flue gas after, can can evaporate rapidly at short notice and take away heat, thereby reduce the temperature of ash-laden gas, when opening after the first flue gas cool-down mechanism 13, fail to make the flue-gas temperature of ash-laden gas to be reduced to design temperature when following, PLC system can be controlled and open the second flue gas cool-down mechanism 131 and carry out the cooling operation to ash-laden gas, in the time that the flue-gas temperature after 131 coolings of the second flue gas cool-down mechanism still exceedes design temperature, PLC system can then be controlled unlatching the 3rd flue gas cool-down mechanism 132 flue-gas temperature of ash-laden gas is cooled to below design temperature, the ash-laden gas that these cigarette temperature are reduced to below predetermined temperature enters along smoke-intake pipe road 12 before the pre-dirt pocket 6 of gravity inertial of each dirt pocket casing, can be first through being positioned at the air distribution plate 41 in the pre-dirt pocket air inlet of each gravity inertial front, ash-laden gas is after air distribution plate 41, ash-laden gas is intake, side air inlet amount and bottom surface intake equivalent in the wind distributing hole of air distribution plate 41, makes ash-laden gas can enter with higher air-flow distribution consistency degree the pre-dirt pocket 6 of gravity inertial of dust collector box body from air inlet 10,
When ash-laden gas enters after the pre-dirt pocket 6 of each gravity inertial, because flow section expands, air velocity is reduced greatly, make heavier granule dust under Action of Gravity Field to ash bucket sedimentation, along with ash-laden gas continue move ahead, the ash-laden gas collision that can contact with the front flute profile baffle plate 19 of the pre-dedusting distributor gear of flue gas and rear flute profile baffle plate 20, ash-laden gas air-flow can swerve along front flute profile baffle plate 19 and rear flute profile baffle plate 20, granule dust in ash-laden gas is under inertia force effect, its running orbit departs from ash-laden gas air motion direction, thereby granule dust and ash-laden gas air-flow are separated, ash bucket below granule dust after separation can fall under self gravitation effect, in the process that ash-laden gas and front flute profile baffle plate 19 and rear flute profile baffle plate 20 collide, wherein sub-fraction ash-laden gas air-flow can enter the S shape flow-guiding channel that front flute profile baffle plate 19 and rear flute profile baffle plate 20 form, in the process that this part of ash-laden gas air-flow moves in S shape flow-guiding channel, can carry out three shocks turns to for four times, after this part of ash-laden gas air-flow occurs to clash into and turns to, granule dust wherein can be separated with ash-laden gas air-flow and fall into ash bucket in self gravitation effect under effect of inertia, the pre-dedusting distributor gear of flue gas forming by front flute profile baffle plate 19 and rear flute profile baffle plate 20 can trap removes the granule dust of particle diameter more than 10 μ m in ash-laden gas, reduce to greatest extent big dust particle directly washing away filter bag, reduce the filter bag probability damaged because big dust particle washes away, effectively protect filter bag, also contributed to improve the efficiency of dust collection of deduster, and after ash-laden gas and the pre-dedusting distributor gear of flue gas contact-impact, flue gas distributes again, a large amount of ash-laden gas (approximately 80% ash-laden gas) can be booted down to the bottom of filter bag in filter bag filter chamber, ash-laden gas can fully be contacted with filter bag from the filter bag 6 downward liftings in bottom, avoid ash-laden gas directly to impact filter bag, few part is all less than 1m/s by the horizontal flue gas flow rate of the ash-laden gas after the pre-dedusting distributor gear of flue gas water conservancy diversion, also reduced filter bag because of the damaged probability of smoke-shock, extend the service life of filter bag, also improved efficiency of dust collection, after ash-laden gas filters by filter bag, flue dust can stick to the outer surface of filter bag, and clean flue gas can be discharged from smoke house steward 17 by each smoke subtube 15 after filter, and along with flue dust adheres to the increase of thickness, the inside and outside differential pressure of filter bag reaches after preset value, action of low-voltage pulse spraying and blowing organ 11 starts to start, the pre-dedusting distributor gear 11 of flue gas adopts action of low-voltage pulse purge mode by row online, filter bag is jetted by nozzle with lower deashing pressure (about 0.3Mpa), nozzle makes filter bag form pulse jitter to the Compressed Gas of jetting in filter bag, stick to the flue dust of filter bag outer surface under violent shake, depart from filter bag and fall into below ash bucket, complete the deashing operation of filter bag,
When being listed as filter chamber, a certain row dust collector box body one breaks down need to overhaul time; only need close the outlet damper door on the smoke lateral of Gai Lie filter chamber; whole deduster is not shut down; can ensure that like this boiler unit is not shutting down, under normal operation; Gai Lie filter chamber is carried out to repair and maintenance, greatly improved production efficiency.The utlity model has the advantage that life of bag filter is long, efficiency of dust collection is high, concentration of emission is less than 20mg/m
3advantage.
Claims (8)
1. gravity inertial pocket type complex dust collector, it is characterized in that: comprise smoke-intake pipe road, and at least one dust collector box body, every dust collector box body inside is separated at least two independent sealed filter chambers of row, Mei Lie filter chamber forms by enter the pre-dirt pocket of gravity inertial and the filter bag filter chamber that cigarette direction distributes successively along flue gas, Mei Lie filter bag filter chamber is separated into upper air-purifying chamber and lower smoke chamber by card respectively, each lower smoke chamber is connected with the pre-dirt pocket of gravity inertial of same column, on the card of each filter bag filter chamber vertical hanging have some and corresponding on the filter bag that is connected of air-purifying chamber, on each, in air-purifying chamber, be respectively arranged with the action of low-voltage pulse spraying and blowing organ that can carry out to the filter bag in lower smoke chamber jetting deashing, the pre-dirt pocket of each gravity inertial offers air inlet, in the pre-dirt pocket of each gravity inertial, enter cigarette direction along flue gas and be arranged at intervals with successively respectively the pre-dedusting distributor gear of some flue gases, the pre-dirt pocket of all gravity inertials is respectively by air inlet while and smoke-intake pipe road are connected separately, on smoke-intake pipe road, be provided with the import baffle door in energy folding smoke-intake pipe road, in smoke-intake pipe road, enter cigarette direction along flue gas and be arranged at intervals with successively some flue gas cool-down mechanisms and pre-spray equipment, in the smoke-intake pipe road at the pre-dirt pocket air inlet of each gravity inertial place, be respectively arranged with the three-dimensional air distribution mechanism of flue gas, air-purifying chamber offers gas outlet on each, each upper air-purifying chamber is connected with a smoke lateral by gas outlet respectively, all smoke laterals are connected with smoke house steward simultaneously, are respectively arranged with the outlet damper door of energy folding smoke lateral on every smoke lateral.
2. gravity inertial pocket type complex dust collector according to claim 1, it is characterized in that: the structure of the pre-dedusting distributor gear of described flue gas is: comprise some front flute profile baffle plate and the rear flute profile baffle plates that are vertically installed in the pre-dirt pocket of gravity inertial, the notch of all front flute profile baffle plates all enters the setting of cigarette direction along flue gas, the notch of all rear flute profile baffle plates all enters the setting of cigarette direction against flue gas, every two adjacent front flute profile baffle plates simultaneously with one after flute profile baffle plate interlock and take, flute profile baffle plate and its interlock and leave gap between the front flute profile baffle plate of taking after every.
3. gravity inertial pocket type complex dust collector according to claim 2, it is characterized in that: all front flute profile baffle plates and all rear flute profile baffle plates are between left and right and are set up in parallel every equalization respectively, the gap between all rear flute profile baffle plates and adjacent front flute profile baffle plate is identical; The bottom of every front flute profile baffle plate respectively lower than the bottom of filter bag and and dust collector box body bottom between leave gap, after every the bottom of flute profile baffle plate respectively lower than the bottom of filter bag and and dust collector box body bottom between leave gap.
4. gravity inertial pocket type complex dust collector according to claim 1, it is characterized in that: the structure of described flue gas cool-down mechanism is: comprise that spacing parallel arranging is arranged at the some two-fluid pipelines in smoke-intake pipe road, one end sealing of two-fluid pipeline, other end opening, in two-fluid pipeline, be separated into side by side independently gas passage and aquaporin, on every two-fluid pipeline, be evenly arranged at intervals with some gas-liquid two-phase atomizers that are simultaneously communicated with gas passage and aquaporin in this root two-fluid pipeline, the gas passage of all two-fluid pipelines is connected by the admission line while and the compressed air reservoir that are connected with this gas access portal end respectively, on admission line, be provided with electromagnetic valve of gas circuit, the aquaporin of all two-fluid pipelines is connected by the inlet channel while and the water tank that are connected with this aquaporin openend respectively, on inlet channel, be provided with waterway electromagnetic valve.
5. gravity inertial pocket type complex dust collector according to claim 4, is characterized in that: inlet channel is connected with water return pipeline, is provided with backwater magnetic valve on water return pipeline.
6. gravity inertial pocket type complex dust collector according to claim 1, it is characterized in that: the structure of the described three-dimensional air distribution mechanism of flue gas is: in the smoke-intake pipe road at the pre-dirt pocket air inlet of gravity inertial place, be provided with air distribution plate, on a wherein side of the upper and lower side of air distribution plate and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of the upper and lower side of air distribution plate and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.30-0.35 times of air distribution plate length, on a wherein side of air distribution plate left and right side and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of air distribution plate left and right side and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.30-0.35 times of air distribution plate width, on air distribution plate, be evenly distributed with some wind distributing holes, the bore dia scope of wind distributing hole is 150-165mm, the percent opening of air distribution plate is 0.32-0.40.
7. gravity inertial pocket type complex dust collector according to claim 6, it is characterized in that: on a wherein side of the upper and lower side of air distribution plate and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of the upper and lower side of air distribution plate and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.33 times of air distribution plate length, on a wherein side of air distribution plate left and right side and the pre-dirt pocket air inlet of gravity inertial, align with the air inlet edge of this side homonymy, on the pre-dirt pocket air inlet of another side of air distribution plate left and right side and gravity inertial and between the air inlet edge of this side homonymy, leave certain distance, and this distance is 0.33 times of air distribution plate width, on air distribution plate, be evenly distributed with some wind distributing holes, the bore dia of wind distributing hole is 160mm, the percent opening of air distribution plate is 0.34.
8. gravity inertial pocket type complex dust collector according to claim 1, it is characterized in that: the structure of described action of low-voltage pulse spraying and blowing organ is: on each, in air-purifying chamber, be fixed with injection tube, injection tube one end is connected with compressed air cylinder, other end sealing, in injection tube, be provided with some nozzles that are communicated with it, each nozzle spout is relative with the upper bag mouth of a filter bag down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338729.5U CN203971664U (en) | 2014-06-24 | 2014-06-24 | Gravity inertial pocket type complex dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338729.5U CN203971664U (en) | 2014-06-24 | 2014-06-24 | Gravity inertial pocket type complex dust collector |
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| CN203971664U true CN203971664U (en) | 2014-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056521A (en) * | 2014-06-24 | 2014-09-24 | 江苏新中环保股份有限公司 | Gravity inertial bag type composite dust remover |
| CN106890528A (en) * | 2017-03-14 | 2017-06-27 | 张镇龙 | High-temperature dust removal equipment |
| CN111747389A (en) * | 2020-07-16 | 2020-10-09 | 宜昌东圣磷复肥有限责任公司 | Monoammonium phosphate powder spraying production system |
-
2014
- 2014-06-24 CN CN201420338729.5U patent/CN203971664U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056521A (en) * | 2014-06-24 | 2014-09-24 | 江苏新中环保股份有限公司 | Gravity inertial bag type composite dust remover |
| CN104056521B (en) * | 2014-06-24 | 2015-12-23 | 江苏新中环保股份有限公司 | Gravity inertial pocket type complex dust collector |
| CN106890528A (en) * | 2017-03-14 | 2017-06-27 | 张镇龙 | High-temperature dust removal equipment |
| CN111747389A (en) * | 2020-07-16 | 2020-10-09 | 宜昌东圣磷复肥有限责任公司 | Monoammonium phosphate powder spraying production system |
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