CN105879544A - Coke oven flue gas dust removing system - Google Patents

Coke oven flue gas dust removing system Download PDF

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Publication number
CN105879544A
CN105879544A CN201610295030.9A CN201610295030A CN105879544A CN 105879544 A CN105879544 A CN 105879544A CN 201610295030 A CN201610295030 A CN 201610295030A CN 105879544 A CN105879544 A CN 105879544A
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CN
China
Prior art keywords
bag
gas
dust
filter
air
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Application number
CN201610295030.9A
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Chinese (zh)
Inventor
陈昱
Original Assignee
四川安创环保科技有限公司
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Priority to CN201610295030.9A priority Critical patent/CN105879544A/en
Publication of CN105879544A publication Critical patent/CN105879544A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0019Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/002Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04Cleaning filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/4263Means for active heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/002Combinations of devices relating to groups B01D45/00 and B01D46/00
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B43/00Preventing or removing incrustations

Abstract

The invention discloses a coke oven flue gas dust removing system. The coke oven flue gas dust removing system comprises a box body, wherein the box body is internally provided with a gas purifying cavity and a filtering cavity, which are separated from each other; a gas inlet pipe and a gas outlet pipe are arranged on two side walls of the box body respectively; the gas purifying cavity is communicated with the gas outlet pipe; the filtering cavity is communicated with the gas inlet pipe; the gas purifying cavity is internally provided with a gas spraying pipe; one end of the gas spraying pipe penetrates through the gas purifying cavity to extend out of the box body; a pulse valve is mounted at the end of the gas spraying pipe; the filtering cavity is internally provided with a plurality of filtering bags; one end of each filtering bag is communicated with the gas purifying cavity; the gas spraying pipe is provided with a plurality of nozzles corresponding to the filtering bags one by one; a flow guide plate, which is inclined along a gas inlet direction, is arranged at the other end of a dust preventing plate; a counter weight block is fixed on a side face, which is opposite to the gas inlet pipe, of the dust preventing plate. By carrying out secondary collection on dust in flue gas, gas, which is finally discharged from the gas outlet pipe, meets industrial standards and the aim of urgently needing to improve the dust removing effect in the industry is realized.

Description

A kind of collecting smoke dust from coke oven system
Technical field
The present invention relates to field of Environment Protection, specifically refer to a kind of collecting smoke dust from coke oven system.
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.
Summary of the invention
It is an object of the invention to provide a kind of collecting smoke dust from coke oven system, while ensureing the stability that filter bag uses, improve the ash-removal effect of cleaner unit.
The purpose of the present invention is achieved through the following technical solutions:
A kind of collecting smoke dust from coke oven system, 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 include the hinged pre-dirt plate being arranged on filter chamber top of resistant to elevated temperatures organ cover and end, one end, the other end at described pre-dirt plate is provided with the deflector tilted along airintake direction, and it is fixed with balancing weight on the pre-dirt backboard side to air inlet pipe, described organ cover one end is connected with the top inner wall of filter chamber cavity, and the organ cover other end is connected with the outer wall of described balancing weight air inlet pipe side dorsad;Described filter bag includes outer bag, the inner bag being arranged on portion in outer bag body and the truncated cone-shaped skeleton being arranged on inner bag inwall, between described outer bag and inner bag, annular space forms auxiliary air runner, bag upper end has the gas outlet being connected with auxiliary air runner outside, the cylinder of one end open is installed between bottom inner bag and bottom outer bag, the open end of described cylinder is internal with inner bag to be connected, cylinder two side all has the pore connected with auxiliary air runner, slide block is slidably arranged in cylinder, at slider bottom, spring is installed, when inner bag is in normal condition, spring forms support and makes inner bag internal and be separated between auxiliary air runner slide block.
The best for the dust removing effects of cleaner in prior art, the present invention 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;Meanwhile, the pre-dirt plate being fixedly installed in filter chamber can hinder the normal pass of flue gas, and therefore, the dust in flue gas can not only be filtered for the first time by the present invention 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.
Wherein, nozzle inflate in filter bag be allowed to expand time, the dust being attached on filter bag can sputter in filter chamber everywhere, and balancing weight upper surface has certain area, and balancing weight with pre-dirt plate swing during balancing weight top can accumulate more dust, and then the gross weight of balancing weight is increased, i.e. increase the pre-dirt plate stop dynamics to flue gas, i.e. reduce the cleaning efficiency of dust in filter chamber;And in the present invention, being provided with resistant to elevated temperatures organ cover in filter chamber top inner wall, balancing weight upper surface is opened by this organ cover with the isolation of filter chamber inner space, has stopped the possibility that dust is piled up at balancing weight top, ensure the regulation to flue gas flow rate of the pre-dirt plate, improve the efficiency of dust collection of flue gas.
And at dust-removal cloth-bag in use, dust-removal cloth-bag realizes expanding the conversion between recoil state by the air that injects of airduct discontinuity, kick down will be attached to the dust on dust-removal cloth-bag outer wall, but use circular single layer structure owing to dust-removal cloth-bag, and it is the most impaired with Recovery Process constantly expanding, and the dust that attachment is on its external wall easily remains, the workload of dust-removal cloth-bag when adding dedusting next time, cause be greatly reduced the service life of dust-removal cloth-bag;nullDuring use,The skeleton utilizing truncated cone-shaped and the inner bag matched、Outer bag constitutes a double-decker,I.e. when inner bag is injected air by airduct,Inner bag gradually expands and pressure in bag incrementally increases,Also there is volumetric expansion in outer bag simultaneously,The dust being attached to outer bag external surface starts to be kicked down,Until air pressure is applied directly on the slide block being positioned at bottom inner bag,Make slide block that linear motion vertically downward occur in cylinder,Now spring is compressed,And inner bag is connected with auxiliary air runner by the pore being positioned at cylinder both sides by inner barrel,Air is rapidly injected in auxiliary air runner,And then outer bag is expanded again,And owing to the inner space of auxiliary air runner is less,The applied stress that outer bag reexpansion produces is significantly larger than the applied stress produced when it expands for the first time,The dust being i.e. attached on outer bag is ejected completely,Compare the dust-removal cloth-bag of single layer structure,Its efficiency of dust collection is greatly improved,And the expansion of outer bag is to be driven by the expansion of inner bag,Reduce outer bag directly directly washing away by air stream,And then reduce the loss of outer bag.When the dust on dust-removal cloth-bag outer wall is kicked down completely, air in auxiliary air runner is discharged by gas outlet, air in inner bag is then by the open effusion of its upper end, outer bag and inner bag is made again to return back to its original state, now, after the air pressure that slide block is subject to disappears, again by auxiliary air runner and spaced-apart in inner bag under the elastic force effect that spring-return deformation produces, to facilitate the filtration of dust next time.
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;The present invention 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.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention 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 the present invention, 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, the present invention 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 the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram;
Fig. 2 is the structural representation under deashing state of the present invention;
Fig. 3 is the structural representation of filter bag;
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Labelling and corresponding parts title in accompanying drawing:
1-outer bag, 2-inner bag, 3-skeleton, 4-gas outlet, 5-cylinder, 6-pore, 7-slide block, 8-spring, 9-air inlet pipe, 10-condenser, 11-pulse valve, 12-pre-dirt plate, 13-air jet pipe, 14-connecting rod, 15-stopper slot, 16-balancing weight, 17-deflector, 18-escape pipe, 19-filter bag, 20-revolving valve, 21-casing, 22-organ cover.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Fig. 1 ~ Fig. 4, the present embodiment includes casing 21, clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing 21, air inlet pipe 9 and escape pipe 18 it is respectively equipped with on the two side of casing 21, and described clean air cavity connects with escape pipe 18, described filter chamber connects with air inlet pipe 9, it is provided with air jet pipe 13 in described clean air cavity, described air jet pipe 13 one end is run through clean air cavity and is extended to outside casing 21 and be provided with pulse valve 11 in this end, multiple filter bag 19 it is provided with in described filter chamber, one end of described filter bag 19 connects with described clean air cavity, multiple and filter bag 19 nozzle one to one is had on described air jet pipe 13;Also including the hinged pre-dirt plate 12 being arranged on filter chamber top in end, one end, the other end at described pre-dirt plate 12 is provided with the deflector 17 tilted along airintake direction, and is fixed with balancing weight 16 at pre-dirt plate 12 on the side of air inlet pipe 9;Also include the hinged pre-dirt plate 12 being arranged on filter chamber top of resistant to elevated temperatures organ cover 22 and end, one end, the other end at described pre-dirt plate 12 is provided with the deflector 17 tilted along airintake direction, and on the side of air inlet pipe 9, it is fixed with balancing weight 16 at pre-dirt plate 12, described organ cover 22 one end is connected with the top inner wall of filter chamber cavity, and organ cover 22 other end is connected with the outer wall of described balancing weight 16 air inlet pipe 9 side dorsad;Described filter bag 19 includes outer bag 1, it is arranged on the inner bag 2 within outer bag 1 and is arranged on the truncated cone-shaped skeleton 3 on inner bag 2 inwall, between described outer bag 1 and inner bag 2, annular space forms auxiliary air runner, bag 1 upper end has the gas outlet 4 being connected with auxiliary air runner outside, the cylinder 5 of one end open is installed between bottom inner bag 2 and bottom outer bag 1, the open end of described cylinder 5 is internal with inner bag 2 to be connected, cylinder 5 two side all has the pore 6 connected with auxiliary air runner, slide block 7 is slidably arranged in cylinder 5, spring 8 is installed bottom slide block 7, when inner bag 2 is in normal condition, spring 8 forms support and makes inner bag 2 internal and be separated between auxiliary air runner slide block 7.
The best for the dust removing effects of cleaner in prior art, the present embodiment is provided with pre-dirt plate 12 in the filter chamber of flue gas, i.e. flue gas is after air inlet pipe 9 enters in filter chamber, under the effect of pre-dirt plate 12, due to effect of inertia, crude particle dust in air-flow falls directly into the bottom (i.e. the bottom of casing 21) of filter chamber, and then plays the effect of pre-dirt;Air-flow continues to move up, by filter bag 19, by dust catching at the outer surface of filter bag 19, purified gas rises in the clean air cavity on filter chamber top in then entering filter bag 19, after converging, this purified gas is directly discharged by escape pipe 18, and when filter bag 19 external dust gathers certain thickness, pulse valve 11 action, compressed air is made to flow in air jet pipe 13, and sprayed in the filter bag 19 of its correspondence by multiple nozzles, high velocity air drives surrounding air in nozzle sprays into each filter bag 19, make the dust releasing being captured on filter bag 19 outer wall, finally it is collected into the bottom of filter chamber, after dust bottom filter chamber is collected, pulse valve 11 cuts out, filter bag 19 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 18, 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 19 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 9 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 19 cannot be caused damage;Simultaneously, the pre-dirt plate 12 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 the present invention at the pre-dirt plate 12 of the hinged setting of import department of air inlet pipe 9, moreover it is possible to intercepts the air-flow in air inlet pipe 9;When the flow velocity of flue gas stream is too fast, pre-dirt plate 12 can be formed impact, the pre-dirt plate 12 flow direction around its pin joint and along flue gas is swung, utilize the balancing weight 16 on pre-dirt plate 12 back side to increase the gravity of pre-dirt plate 12, the amplitude of fluctuation preventing pre-dirt is excessive, and once when flue gas, the impact dynamics of pre-dirt plate 12 be reduced, pre-dirt plate 12 will occur reverse swing, to control the size of the passage formed between air inlet pipe 9 and pre-dirt plate 12, 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 12, 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 19 and causes it impaired.
Wherein, the present embodiment has stopper slot 15 in the upper end of described balancing weight 16, is hinged with connecting rod 14 at the top of described filter chamber, and is provided with roller at the end of connecting rod 14, and described roller-coaster is arranged in stopper slot 15;Being provided with condenser 10 on the sidewall of described casing 21, the gas outlet of described condenser 10 connects with filter chamber, and the air inlet of condenser 10 connects with air inlet pipe 9.Nozzle inflate in filter bag 11 be allowed to expand time, it is attached to the dust on filter bag 11 to sputter everywhere in filter chamber, and balancing weight 16 upper surface has certain area, and balancing weight 16 with pre-dirt plate 12 swing during balancing weight 16 top can accumulate more dust, and then the gross weight of balancing weight 16 is increased, i.e. increase the pre-dirt plate 12 stop dynamics to flue gas, i.e. reduce the cleaning efficiency of dust in filter chamber;And in the present embodiment, filter chamber top inner wall is provided with resistant to elevated temperatures organ cover 22, balancing weight 16 upper surface is opened by this organ cover 22 with the isolation of filter chamber inner space, stop the possibility that dust is piled up at balancing weight 16 top, ensure the regulation to flue gas flow rate of the pre-dirt plate 1, improve the efficiency of dust collection of flue gas.
nullFurther,In use,The skeleton 3 utilizing truncated cone-shaped and the inner bag 2 matched、Outer bag 1 constitutes a double-decker,I.e. when inner bag 2 is injected air by airduct,Inner bag 2 gradually expands and pressure in bag incrementally increases,Also there is volumetric expansion in outer bag 1 simultaneously,The dust being attached to outer bag 1 outer surface starts to be kicked down,Until air pressure is applied directly on the slide block 7 being positioned at bottom inner bag 2,Make slide block 7 that linear motion vertically downward occur in cylinder 5,Now spring 8 is compressed,And inner bag 2 is connected with auxiliary air runner by the pore 6 being positioned at cylinder 5 both sides by cylinder 5 is internal,Air is rapidly injected in auxiliary air runner,And then outer bag 1 is expanded again,And owing to the inner space of auxiliary air runner is less,The applied stress that outer bag 1 reexpansion produces is significantly larger than the applied stress produced when it expands for the first time,The dust being i.e. attached on outer bag 1 is ejected completely,Compare the dust-removal cloth-bag of single layer structure,Its efficiency of dust collection is greatly improved,And the expansion of outer bag 1 is to be driven by the expansion of inner bag 2,Reduce outer direct directly the washing away by air stream of bag 1,And then reduce the loss of outer bag 1.
When the amplitude of fluctuation of pre-dirt plate 12 is excessive, is equivalent to the flue gas in exhaustor and directly impacts on filter bag 19, it is impossible to reach two-stage dust removal effect, and easily make filter bag 19 impaired by the interference of Mars;The present invention has stopper slot 15 in the upper end of balancing weight 16, and hinged on the cavity wall of filter chamber it is provided with connecting rod 14, and the pulley of connecting rod 14 end is slidably at stopper slot 15, make to obtain to slide mobile extreme position on the left of stopper slot 15 time, pre-dirt plate 12 then cannot continue to swing to the right, similarly, when pulley moves the extreme position on the right side of stopper slot 15, pre-dirt plate 12 then cannot continue to swing to the left, excessive with the left and right amplitude of oscillation that prevents pre-dirt plate 12, 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 10 between air inlet pipe 9 and filter chamber, described condenser 10 is flue gas condenser 10, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag 19 to prevent from entering the flue-gas temperature in filter chamber too high.
As preferably, rotary valve 20 is installed back bottom casing 21, wherein revolving valve 20 also referred to as discharge valve or vane type wind stopping device, vane type wind stopping device Main Function in air conveying or casing 21 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 21 can normally with work efficiently.
As preferably, basalt filter bag 19(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 19, basalt Nomex has been filled up the filter bag 19 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 19.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.

Claims (5)

1. a collecting smoke dust from coke oven system, including casing (21), clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing (21), air inlet pipe (9) and escape pipe (18) it is respectively equipped with on the two side of casing (21), and described clean air cavity connects with escape pipe (18), described filter chamber connects with air inlet pipe (9), it is characterized in that: in described clean air cavity, be provided with air jet pipe (13), described air jet pipe (13) one end is run through clean air cavity and is extended to casing (21) and outward and be provided with pulse valve (11) in this end, multiple filter bag (19) it is provided with in described filter chamber, one end of described filter bag (19) connects with described clean air cavity, multiple and filter bag (19) nozzle one to one is had on described air jet pipe (13);Also include the hinged pre-dirt plate (12) being arranged on filter chamber top of resistant to elevated temperatures organ cover (22) and end, one end, the other end described pre-dirt plate (12) is provided with the deflector (17) tilted along airintake direction, and on the side of air inlet pipe (9), it is fixed with balancing weight (16) pre-dirt plate (12), described organ cover (22) one end is connected with the top inner wall of filter chamber cavity, and organ cover (22) other end is connected with the outer wall of described balancing weight (16) air inlet pipe dorsad (9) side;nullDescribed filter bag (19) includes outer bag (1)、It is arranged on the internal inner bag (2) of outer bag (1) and the truncated cone-shaped skeleton (3) being arranged on inner bag (2) inwall,Between described outer bag (1) and inner bag (2), annular space forms auxiliary air runner,Bag (1) upper end has the gas outlet (4) being connected with auxiliary air runner outside,The cylinder (5) of one end open is installed between inner bag (2) bottom and outer bag (1) bottom,The open end of described cylinder (5) is internal with inner bag (2) to be connected,Cylinder (5) two side all has the pore (6) connected with auxiliary air runner,Slide block (7) is slidably arranged in cylinder (5),In slide block (7) bottom, spring (8) is installed,When inner bag (2) is in normal condition,Spring (8) forms support and makes inner bag (2) internal and be separated between auxiliary air runner slide block (7).
A kind of collecting smoke dust from coke oven system the most according to claim 1, it is characterized in that: have stopper slot (15) in the upper end of described balancing weight (16), connecting rod (14) it is hinged with at the top of described filter chamber, and at the end of connecting rod (14), roller being installed, described roller-coaster is arranged in stopper slot (15).
A kind of collecting smoke dust from coke oven system the most according to claim 1, it is characterized in that: condenser (10) is installed on the sidewall of described casing (21), the gas outlet of described condenser (10) connects with filter chamber, and the air inlet of condenser (10) connects with air inlet pipe (9).
A kind of collecting smoke dust from coke oven system the most according to claim 1, it is characterised in that: the bottom of described casing (21) is provided with revolving valve (20).
A kind of collecting smoke dust from coke oven system the most according to claim 1, it is characterised in that: described filter bag (19) is basalt filter bag.
CN201610295030.9A 2016-05-06 2016-05-06 Coke oven flue gas dust removing system CN105879544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610295030.9A CN105879544A (en) 2016-05-06 2016-05-06 Coke oven flue gas dust removing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610295030.9A CN105879544A (en) 2016-05-06 2016-05-06 Coke oven flue gas dust removing system

Publications (1)

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CN105879544A true CN105879544A (en) 2016-08-24

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CN201610295030.9A CN105879544A (en) 2016-05-06 2016-05-06 Coke oven flue gas dust removing system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362509A (en) * 2016-08-31 2017-02-01 廖淑梅 Novel efficient dust remover for agricultural machinery
CN108079721A (en) * 2017-12-27 2018-05-29 郑州源冉生物技术有限公司 A kind of environmental protection flue gas safe handling filter device
CN108998051A (en) * 2018-08-24 2018-12-14 普雷沃流体控制科技(芜湖)有限公司 A kind of control dirt control sulphur system of coke oven list gas collecting tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362509A (en) * 2016-08-31 2017-02-01 廖淑梅 Novel efficient dust remover for agricultural machinery
CN108079721A (en) * 2017-12-27 2018-05-29 郑州源冉生物技术有限公司 A kind of environmental protection flue gas safe handling filter device
CN108998051A (en) * 2018-08-24 2018-12-14 普雷沃流体控制科技(芜湖)有限公司 A kind of control dirt control sulphur system of coke oven list gas collecting tube

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Application publication date: 20160824