CN205598864U - Low pressure pulse dust collector - Google Patents

Abstract

The utility model discloses a low pressure pulse dust collector, including the box, be provided with mutual rupturable gas purifying cavity and filter chamber in that the box is inside, be equipped with intake pipe and outlet duct on the both sides wall of box respectively, gas purifying cavity and outlet duct intercommunication, filter chamber and intake pipe intercommunication are provided with jet -propelled pipe in gas purifying cavity, jet -propelled pipe one end runs through gas purifying cavity and extends to the box and outer and install the pulse valve at this tip, is provided with a plurality of filter bags in the filter chamber, the one end of filter bag with the gas purifying cavity intercommunication, jet -propelled guan shangkai has a plurality ofly and the nozzle filter bag one -to -one, install along the guide plate of the direction slope of admitting air at the other end of dirt board in advance, be fixed with the balancing weight on the side of dirt backboard to the intake pipe in advance. Collect through the secondary to dust in the flue gas for finally accord with industry standard by combustion gas in the outlet duct, reach the purpose of being badly in need of improving dust removal effect in the industry.

Description

A kind of action of low-voltage pulse dust arrester

Technical field

This utility model relates to field of Environment Protection, specifically refers to a kind of action of low-voltage pulse dust arrester.

Background technology

Pulse bag type dust collector, belong to mechanical shaking type cleaner unit, dust in air-flow and granule can be collected and separate, main employing mechanical vibrator mode carries out deashing, is widely used in the purification of the dusty gas of food, pharmacy, feedstuff, metallurgy, building materials, cement, machinery, chemical industry, electric power, light industry and the recovery of particulate dust.

At present, existing pulse bag type dust collector is typically made up of several parts such as bottom steel structure stand, ash bucket, casing, inlet and outlet, filter bag, jetting deashing device and control devices.The usual volume of existing pulse bag type dust collector is big, cost is high, and it is bigger, inefficient to consume energy.Chinese invention patent CN241002Y discloses " pulse bag type dust collector of ultralow pressure winding-up " on the 13rd in December in 2000.This patent mainly replaces existing air compressor with Roots blower, and increases gas bag volume, pulse valve escape pipe caliber, injection tube caliber, injection hole aperture, reduces jetting pressure and increases blows air amount.But, air quantity that air compressor can be provided by compared by Roots blower and wind-force is less, and its jetting deashing effect is unsatisfactory；Similarly, when the flue gas produced during coalingging coke furnace carbonization chamber processes, due to limited space on charging car, cleaner unit intake stack design path is short, is drawn into filter bag of dust collector casing when there being fire to scurry into cleaner unit suspended hood in coke oven, causes filter bag to damage.

Utility model content

The purpose of this utility model is to provide a kind of action of low-voltage pulse dust arrester, while ensureing the stability that filter bag uses, improves the ash-removal effect of cleaner unit.

The purpose of this utility model is achieved through the following technical solutions:

A kind of action of low-voltage pulse dust arrester, including casing, clean air cavity and the filter chamber of mutually isolation it is provided with at described box house, air inlet pipe and escape pipe it is respectively equipped with on the two side of casing, and described clean air cavity connects with escape pipe, described filter chamber connects with air inlet pipe, it is provided with air jet pipe in described clean air cavity, described air jet pipe one end is run through clean air cavity and is extended to outside casing and be provided with pulse valve in this end, multiple filter bag it is provided with in described filter chamber, one end of described filter bag connects with described clean air cavity, multiple and filter bag nozzle one to one is had on described air jet pipe；Also including the hinged pre-dirt plate being arranged on filter chamber top in end, one end, the other end at described pre-dirt plate is provided with the deflector tilted along airintake direction, and is fixed with balancing weight on the pre-dirt backboard side to air inlet pipe.The best for the dust removing effects of cleaner in prior art, this utility model is provided with pre-dirt plate in the filter chamber of flue gas, i.e. flue gas is after air inlet pipe enters in filter chamber, under the effect of pre-dirt plate, due to effect of inertia, crude particle dust in air-flow falls directly into the bottom (i.e. the bottom of casing) of filter chamber, and then plays the effect of pre-dirt；Air-flow continues to move up, pass through filter bag, by dust catching at the outer surface of filter bag, purified gas rises in the clean air cavity on filter chamber top in then entering filter bag, after converging, this purified gas is directly discharged by escape pipe, and when filter bag external dust gathers certain thickness, pulse valve action, compressed air is made to flow in air jet pipe, and sprayed in the filter bag of its correspondence by multiple nozzles, high velocity air drives surrounding air in nozzle sprays into each filter bag, make the dust releasing being captured on filter bag outer wall, finally it is collected into the bottom of filter chamber, after dust bottom filter chamber is collected, pulse valve cuts out, filter bag returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe, reach the purpose being badly in need of in the industry improving dust removing effects.

And in prior art, when the flue gas produced during coalingging coke furnace carbonization chamber processes, the design path of intake stack is shorter, in flue gas, filter bag is caused damage in entering directly into cleaner unit by the Mars of residual, inventor carries out further investigation and finds, the flue gas flow velocity when entering in air inlet pipe is the most unstable, in high temperature environments, the Mars flowed out with flue gas cannot consume the amount of heat himself carried in moving process when flue gas flow rate is too fast, and at flue gas flow rate relatively time slack, Mars can in moving process automatic distinguishing, i.e. filter bag cannot be caused damage；Simultaneously, the pre-dirt plate being fixedly installed in filter chamber can hinder the normal pass of flue gas, therefore, the dust in flue gas can not only be filtered for the first time by this utility model at the pre-dirt plate of the hinged setting of import department of air inlet pipe, moreover it is possible to intercepts the air-flow in air inlet pipe；When the flow velocity of flue gas stream is too fast, pre-dirt plate can be formed impact, the pre-dirt plate flow direction around its pin joint and along flue gas is swung, utilize the balancing weight in pre-dirt back to increase the gravity of pre-dirt plate, the amplitude of fluctuation preventing pre-dirt is excessive, and once when flue gas, the impact dynamics of pre-dirt plate be reduced, pre-dirt plate will occur reverse swing, to control the size of the passage formed between air inlet pipe and pre-dirt plate, and then control flow velocity that flue gas enters in filter chamber and (i.e. utilize gas in unit volume to be entered after in big passage by passage aisle with certain flow velocity, the principle that its speed can reduce)；I.e. enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag and causes it impaired.

Having stopper slot in the upper end of described balancing weight, be hinged with connecting rod at the top of described filter chamber, and be provided with roller at the end of connecting rod, described roller-coaster is arranged in stopper slot.When the amplitude of fluctuation of pre-dirt plate is excessive, is equivalent to the flue gas in exhaustor and directly impacts on filter bag, it is impossible to reach two-stage dust removal effect, and easily make filter bag impaired by the interference of Mars；This utility model has stopper slot in the upper end of balancing weight, and hinged on the cavity wall of filter chamber it is provided with connecting rod, and the pulley of connecting rod end is slidably at stopper slot, make to obtain to slide mobile extreme position on the left of stopper slot time, pre-dirt plate then cannot continue to swing to the right, similarly, when pulley moves the extreme position on the right side of stopper slot, pre-dirt plate then cannot continue to swing to the left, excessive with the left and right amplitude of oscillation that prevents pre-dirt plate, ensure that flue gas enters in filter chamber with stable flow velocity in dust removal process, maximizes the dust removing effects realizing flue gas.

Being provided with condenser on the sidewall of described casing, the gas outlet of described condenser connects with filter chamber, and the air inlet of condenser connects with air inlet pipe.Arranging condenser between air inlet pipe and filter chamber, described condenser is flue gas condenser, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag to prevent from entering the flue-gas temperature in filter chamber too high.

The bottom of described casing is provided with revolving valve.As preferably, rotary valve is installed back at box bottom, wherein revolving valve is also referred to as discharge valve or vane type wind stopping device, vane type wind stopping device Main Function in air conveying or casing is that and makes discharger in the case of having pressure differential, dust is smoothly discharged out, and stop air to leak, thus ensure conveying and casing can normally with work efficiently.

Described filter bag is basalt filter bag.As preferably, basalt filter bag (CBF fiber+P84 fiber+high silica) is with the inorganic basalt fibre of fine-denier as raw material, give full play to its high temperature resistant, aging-resistant superior function, through unique nonwoven nonwovens process, thoroughly solve its fiber without curling ripple, be easily generated electrostatic, be difficult to the technical barrier of combing, define concrete dynamic modulus small-bore PO PE NT PTFE, basalt Nomex has been filled up the filter bag under the conditions of China's bag-type dusting worst hot case and has been produced high temperature blank, is the ideal product substituting stainless steel fibre filter bag.

This utility model compared with prior art, has such advantages as and beneficial effect:

1, this utility model enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag and causes it impaired；

2, after in this utility model, dust bottom filter chamber is collected, pulse valve cuts out, and filter bag returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe, reach the purpose being badly in need of in the industry improving dust removing effects；

3, this utility model arranges condenser between air inlet pipe and filter chamber, and described condenser is flue gas condenser, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag to prevent from entering the flue-gas temperature in filter chamber too high.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:

Fig. 1 is this utility model structural representation；

Fig. 2 is the structural representation under this utility model deashing state.

Labelling and corresponding parts title in accompanying drawing:

1-air inlet pipe, 2-condenser, 3-pulse valve, 4-pre-dirt plate, 5-air jet pipe, 6-connecting rod, 7-stopper slot, 8-balancing weight, 9-deflector, 10-escape pipe, 11-filter bag, 12-revolving valve, 13-casing.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.

Embodiment 1

As depicted in figs. 1 and 2, the present embodiment includes casing 13, clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing 13, air inlet pipe 1 and escape pipe 10 it is respectively equipped with on the two side of casing 13, and described clean air cavity connects with escape pipe 10, described filter chamber connects with air inlet pipe 1, it is provided with air jet pipe 5 in described clean air cavity, described air jet pipe 5 one end is run through clean air cavity and is extended to outside casing 13 and be provided with pulse valve 3 in this end, multiple filter bag 11 it is provided with in described filter chamber, one end of described filter bag 11 connects with described clean air cavity, multiple and filter bag 11 nozzle one to one is had on described air jet pipe 5；Also including the hinged pre-dirt plate 4 being arranged on filter chamber top in end, one end, the other end at described pre-dirt plate 4 is provided with the deflector 9 tilted along airintake direction, and is fixed with balancing weight 8 at pre-dirt plate 4 on the side of air inlet pipe 1.

The best for the dust removing effects of cleaner in prior art, the present embodiment is provided with pre-dirt plate 4 in the filter chamber of flue gas, i.e. flue gas is after air inlet pipe 1 enters in filter chamber, under the effect of pre-dirt plate 4, due to effect of inertia, crude particle dust in air-flow falls directly into the bottom (i.e. the bottom of casing 13) of filter chamber, and then plays the effect of pre-dirt；Air-flow continues to move up, by filter bag 11, by dust catching at the outer surface of filter bag 11, purified gas rises in the clean air cavity on filter chamber top in then entering filter bag 11, after converging, this purified gas is directly discharged by escape pipe 10, and when filter bag 11 external dust gathers certain thickness, pulse valve 3 action, compressed air is made to flow in air jet pipe 5, and sprayed in the filter bag 11 of its correspondence by multiple nozzles, high velocity air drives surrounding air in nozzle sprays into each filter bag 11, make the dust releasing being captured on filter bag 11 outer wall, finally it is collected into the bottom of filter chamber, after dust bottom filter chamber is collected, pulse valve 3 cuts out, filter bag 11 returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe 10, reach the purpose being badly in need of in the industry improving dust removing effects.

And in prior art, when the flue gas produced during coalingging coke furnace carbonization chamber processes, the design path of intake stack is shorter, in flue gas, filter bag 11 is caused damage in entering directly into cleaner unit by the Mars of residual, inventor carries out further investigation and finds, the flue gas flow velocity when entering in air inlet pipe 1 is the most unstable, in high temperature environments, the Mars flowed out with flue gas cannot consume the amount of heat himself carried in moving process when flue gas flow rate is too fast, and at flue gas flow rate relatively time slack, Mars can in moving process automatic distinguishing, i.e. filter bag 11 cannot be caused damage；Simultaneously, the pre-dirt plate 4 being fixedly installed in filter chamber can hinder the normal pass of flue gas, therefore, the dust in flue gas can not only be filtered for the first time by this utility model at the pre-dirt plate 4 of the hinged setting of import department of air inlet pipe 1, moreover it is possible to intercepts the air-flow in air inlet pipe 1；When the flow velocity of flue gas stream is too fast, pre-dirt plate 4 can be formed impact, the pre-dirt plate 4 flow direction around its pin joint and along flue gas is swung, utilize the balancing weight 8 on pre-dirt plate 4 back side to increase the gravity of pre-dirt plate 4, the amplitude of fluctuation preventing pre-dirt is excessive, and once when flue gas, the impact dynamics of pre-dirt plate 4 be reduced, pre-dirt plate 4 will occur reverse swing, to control the size of the passage formed between air inlet pipe 1 and pre-dirt plate 4, and then control flow velocity that flue gas enters in filter chamber and (i.e. utilize gas in unit volume to be entered after in big passage by passage aisle with certain flow velocity, the principle that its speed can reduce)；I.e. enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate 4, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag 11 and causes it impaired.

Wherein, the present embodiment has stopper slot 7 in the upper end of described balancing weight 8, is hinged with connecting rod 6 at the top of described filter chamber, and is provided with roller at the end of connecting rod 6, and described roller-coaster is arranged in stopper slot 7；Being provided with condenser 2 on the sidewall of described casing 13, the gas outlet of described condenser 2 connects with filter chamber, and the air inlet of condenser 2 connects with air inlet pipe 1.

When the amplitude of fluctuation of pre-dirt plate 4 is excessive, is equivalent to the flue gas in exhaustor and directly impacts on filter bag 11, it is impossible to reach two-stage dust removal effect, and easily make filter bag 11 impaired by the interference of Mars；This utility model has stopper slot 7 in the upper end of balancing weight 8, and hinged on the cavity wall of filter chamber it is provided with connecting rod 6, and the pulley of connecting rod 6 end is slidably at stopper slot 7, make to obtain to slide mobile extreme position on the left of stopper slot 7 time, pre-dirt plate 4 then cannot continue to swing to the right, similarly, when pulley moves the extreme position on the right side of stopper slot 7, pre-dirt plate 4 then cannot continue to swing to the left, excessive with the left and right amplitude of oscillation that prevents pre-dirt plate 4, ensure that flue gas enters in filter chamber with stable flow velocity in dust removal process, maximize the dust removing effects realizing flue gas.Arranging condenser 2 between air inlet pipe 1 and filter chamber, described condenser 2 is flue gas condenser 2, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag 11 to prevent from entering the flue-gas temperature in filter chamber too high.

As preferably, rotary valve 12 is installed back bottom casing 13, wherein revolving valve 12 also referred to as discharge valve or vane type wind stopping device, vane type wind stopping device Main Function in air conveying or casing 13 is that and makes discharger in the case of having pressure differential, dust is smoothly discharged out, and stop air to leak, thus ensure conveying and casing 13 can normally with work efficiently.

As preferably, basalt filter bag 11(CBF fiber+P84 fiber+high silica) it is with the inorganic basalt fibre of fine-denier as raw material, give full play to its high temperature resistant, aging-resistant superior function, through unique nonwoven nonwovens process, thoroughly solve its fiber without curling ripple, be easily generated electrostatic, be difficult to the technical barrier of combing, define concrete dynamic modulus small-bore PO PE NT PTFE 11, basalt Nomex has been filled up the filter bag 11 under the conditions of China's bag-type dusting worst hot case and has been produced high temperature blank, is the ideal product substituting stainless steel fibre filter bag 11.

Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.

Claims (5)

1. an action of low-voltage pulse dust arrester, including casing (13), clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing (13), air inlet pipe (1) and escape pipe (10) it is respectively equipped with on the two side of casing (13), and described clean air cavity connects with escape pipe (10), described filter chamber connects with air inlet pipe (1), it is characterized in that: in described clean air cavity, be provided with air jet pipe (5), described air jet pipe (5) one end is run through clean air cavity and is extended to casing (13) and outward and be provided with pulse valve (3) in this end, multiple filter bag (11) it is provided with in described filter chamber, one end of described filter bag (11) connects with described clean air cavity, multiple and filter bag (11) nozzle one to one is had on described air jet pipe (5)；Also include the hinged pre-dirt plate (4) being arranged on filter chamber top in end, one end, the other end described pre-dirt plate (4) is provided with the deflector (9) tilted along airintake direction, and is fixed with balancing weight (8) pre-dirt plate (4) on the side of air inlet pipe (1).

A kind of action of low-voltage pulse dust arrester the most according to claim 1, it is characterized in that: have stopper slot (7) in the upper end of described balancing weight (8), connecting rod (6) it is hinged with at the top of described filter chamber, and at the end of connecting rod (6), roller being installed, described roller-coaster is arranged in stopper slot (7).

A kind of action of low-voltage pulse dust arrester the most according to claim 1, it is characterized in that: condenser (2) is installed on the sidewall of described casing (13), the gas outlet of described condenser (2) connects with filter chamber, and the air inlet of condenser (2) connects with air inlet pipe (1).

A kind of action of low-voltage pulse dust arrester the most according to claim 1, it is characterised in that: the bottom of described casing (13) is provided with revolving valve (12).

A kind of action of low-voltage pulse dust arrester the most according to claim 1, it is characterised in that: described filter bag (11) is basalt filter bag.