CN105879543A - Flue gas guide system of coke-side small furnace ends - Google Patents
Flue gas guide system of coke-side small furnace ends Download PDFInfo
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- CN105879543A CN105879543A CN201610295018.8A CN201610295018A CN105879543A CN 105879543 A CN105879543 A CN 105879543A CN 201610295018 A CN201610295018 A CN 201610295018A CN 105879543 A CN105879543 A CN 105879543A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/003—Arrangements for pollution-free discharge
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a flue gas guide system of coke-side small furnace ends. A supporting seat is arranged on a base line of a furnace top; a draught fan and a dust remover are fixed on the supporting seat; the flue gas guide system further comprises a main gas pipe and a plurality of gas collecting hoods; the gas collecting hoods cover just above the outer sides of the two adjacent coke-side small furnace ends; one end of the main gas pipe is communicated with an air suction opening of the draught fan and a gas inlet of the dust remover; the other end of the main gas pipe is communicated with the plurality of gas collecting hoods through branch gas pipes; each gas collecting hood is composed of a collecting section and a refracting section, which are connected with each other; a spiral groove is formed in an inner wall of each collecting section along the axis direction; each refracting section is conical and the conical tip of the refracting section is communicated with the tail end of the corresponding branch gas pipe. In a working process, the plurality of gas collecting hoods are used for intensively collecting flue gas escaped from the small furnace ends on the base line of the furnace top at the same time, and the collected flue gas enters the main gas pipe through the branch gas pipes and enters a dust filter under the traction of the air force of the draught fan, so as to perform the flue gas treatment, the escaping of the flue gas at the furnace top is avoided and environmental pollution is avoided.
Description
Technical field
The present invention relates to Environmental Protection Technology in Coking Industry field, specifically refer to a kind of little burner of coke side and lead cigarette system.
Background technology
Coking is that multi-source pollutes industry, and flue dust is mainly to pollute emissions in coking production process.Modern cell-type coke oven is generally fitted provided with vehicular or ground standing posture is coaling and coke discharging and dedusting system, and wherein the application of ground standing posture dust pelletizing system is relatively broad.Ground standing posture coke discharging and dedusting system utilizes coupling fluid-structure or VFC blower fan and to be purified its overwhelming majority flue dust collecting through coke discharging and dedusting device by the collecting hood being arranged on coke guide mainly for coke side flue dust.But coke side little furnace head position still has part flue dust loss to deteriorate working environment.The little burner of coke side discharges of the coke, and flue dust derives from blow-on door, red Jiao initially enters grid, continue coke pushing and pass 4 stages of fire door, and it is the most prominent that the reddest Jiao initially enters grid stage flue dust.
Because of the front of the single little burner of coke side, firedoor frame and furnace stay to coke guide orbit centre away from there are differences, bucket type dust gathering arrester scratching furnace stay is covered for preventing from leading burnt grid, its nearly body of heater end and coke side little burner front spacing are relatively big, thus leave structural defect for flue dust loss at little burner.Flue dust temperature of the discharging of the coke height, transient heat buoyancy and dirt are large-minded, but bucket type dust gathering arrester area ratio great disparity is covered with both coke quenching cart compartment tops in coke guide grid of coke guide top, ground dedusting blower fan suction is mainly allocated to coke quenching cart compartment top and covers bucket type dust gathering arrester, cover between bucket type dust gathering arrester and little burner, there is interstice coverage plus leading burnt grid, therefore cause the loss at little burner of part flue dust.In order to improve its dust removing effects, some coal chemical enterprises are taked leading Jiao Shanding and cover perforate the auxiliary dust suction of additional vehicle-mounted fan on the side plate of bucket type dust gathering arrester nearly body of heater side, and Some Enterprises is taked to adjust earth station's dedusting fan time parameter that runs up in advance and increased red Jiao initially enter grid stage suction with pre-；But it is the most undesirable to produce effects, but also adds power consumption.
Summary of the invention
It is an object of the invention to provide a kind of little burner of coke side and lead cigarette system, stop the loss of furnace roof flue gas, it is to avoid pollute environment.
The purpose of the present invention is achieved through the following technical solutions:
A kind of little burner of coke side leads cigarette system, furnace roof baseline is provided with support seat, blower fan and cleaner unit are fixed on described support seat, also include main trachea and multiple gas skirt, described gas skirt covers directly over outside two little burners of adjacent coke side, described main trachea one end connects with inlet scoop, the cleaner unit air inlet of blower fan respectively, and the main trachea other end is connected with multiple described gas skirts by bronchus；Described gas skirt is made up of interconnective collection section and refraction section, and described collection section is tubular and offers helicla flute along its axis direction wall within it, and described refraction section is coniform and its cone tip portion connects with described bronchial end；Described cleaner unit includes 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, and described air jet pipe has multiple and filter bag nozzle one to one；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.
When the present invention works, loss flue gas out in burner little on furnace roof baseline is carried out centralized collection by multiple gas skirts the most simultaneously, and the flue gas collected enters in main trachea by bronchus, enter under the traction of blower fan wind-force in dirt catcher, to carry out the process of flue gas, stop the loss of furnace roof flue gas, it is to avoid pollute environment.Wherein, flue gas forms turbulent flow when moving in bronchus and main trachea so that flue gas can form certain impact to inner surface of trachea having component velocity, i.e. flue gas in the radial direction along trachea, and similarly flow of flue gas can be caused certain obstruction by inner surface of trachea；And, turbulent flow can be regarded as the flowing being formed by stacking by the vortex of various different scales from physically saying, the size of these whirlpools is random in the distribution of trachea axis direction, the vortex of large scale mainly has the boundary condition of flowing to be certainly sized, can be comparable with the size in flow field, it is the reason causing low frequency pulsating；The vortex of little yardstick is mainly toughness power and is determined, its size may only have the one thousandth magnitude of flow field yardstick, is the reason causing dither；Microvortex rotation is formed after the Vortex Breakdown of large scale, the vortex of less yardstick is formed after the Vortex Breakdown of smaller scale, thus in full-blown turbulent region, the yardstick of watery nasal discharge vortex can change in comparatively wide scope continuously, the vortex of large scale is constantly obtained energy from main flow and is set up by the interaction energy between vortex and transmit to little vortex, finally just convert due to the vortex constantly disappearance mechanical energy acting on little yardstick of fluid viscosity or be referred to as the heat energy for fluid that dissipates, the temperature i.e. causing main trachea drastically raises, main endotracheal pressure increases, correspondingly, the workload of blower fan also sharply increases.And in the present invention, gas skirt is made up of collection section and refraction section, and on the inwall of collection section, have the helicla flute being distributed along its axis direction, the flue gas before entering main trachea is made to gradually form the eddy current of large scale in gas skirt, and non-turbulent flow, i.e. flue gas is rotationally advancing around the axis of trachea, particularly in being perpendicular to horizontal main duct portion, the energy that the energy that the flue gas being rotationally advancing is consumed is consumed when rising less than flue gas under normal circumstances, and the mechanical energy of fluid to be converted to the amount of heat energy less, the variations in temperature of main trachea is inconspicuous, and then reduce blower fan and the consumption of electric power.
And it is 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.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.
Being provided with flap valve at described bronchial end, described flap valve connects with described refraction section upper end.By flap valve, the flow that the flue gas in gas skirt can enter bronchus and main trachea regulates and controls, it is to avoid idle running or overload occurs in the workload of blower fan, and then reduces cost when fume collection processes.
Described main trachea is provided with flue gas switching valve.When the flue gas loss of the little burner of coke side is serious, during the fume collection overload of bronchus and main trachea, the flue gas switching valve being positioned on main trachea can directly connect with ground station for dust removal, can carry out auxiliary conducting by the flue gas in gas skirt, improve the fume collection treatment effeciency in the little burner of coke side.
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.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the gas skirt of the present invention is made up of collection section and refraction section, and on the inwall of collection section, have the helicla flute being distributed along its axis direction, the flue gas before entering main trachea is made to gradually form the eddy current of large scale in gas skirt, and non-turbulent flow, i.e. flue gas is rotationally advancing around the axis of trachea, particularly in being perpendicular to horizontal main duct portion, the energy that the energy that the flue gas being rotationally advancing is consumed is consumed when rising less than flue gas under normal circumstances, and the mechanical energy of fluid to be converted to the amount of heat energy less, the variations in temperature of main trachea is inconspicuous, and then reduce blower fan and the consumption of electric power；
2, the present invention is when the flue gas loss of the little burner of coke side is serious, during the fume collection overload of bronchus and main trachea, the flue gas switching valve being positioned on main trachea can directly connect with ground station for dust removal, auxiliary conducting can be carried out by flue gas in gas skirt, improve the fume collection treatment effeciency in the little burner of coke side；
3, in the present invention, bag dust filter processes the scope of air quantity extensively, little to per minute several square meters, big to tens thousand of square metres per minute, it is adaptable to the flue gas ash removal at industrial furnace cellar for storing things, can greatly reduce the discharge of atmosphere pollution.
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 of cleaner unit；
Fig. 3 is the structural representation under cleaner unit 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, 14-blower fan, 15-support seat, 16-furnace roof baseline, 17-flow valve, the main trachea of 18-, 19-helicla flute, 20-gas skirt, 21-flap valve, 22-bronchus, 23-flue gas switching valve, 24-cleaner unit.
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. 3, the present embodiment is provided with support seat 15 on furnace roof baseline 16, blower fan 14 and cleaner unit 24 are fixed on described support seat 15, also include main trachea 18 and multiple gas skirt 20, described gas skirt 20 covers directly over outside two little burners of adjacent coke side, described main trachea 18 one end connects with inlet scoop, cleaner unit 24 air inlet of blower fan 14 respectively, and main trachea 18 other end is connected with multiple described gas skirts 20 by bronchus 22；Described gas skirt 20 is made up of interconnective collection section and refraction section, and described collection section is tubular and offers helicla flute 19 along its axis direction wall within it, and described refraction section is coniform and its cone tip portion connects with described bronchus 22 end；Described cleaner unit 24 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.
During work, loss flue gas out in burner little on furnace roof baseline 16 is carried out centralized collection by multiple gas skirts 20 the most simultaneously, and the flue gas collected enters in main trachea 18 by bronchus 22, enter under the traction of blower fan 14 wind-force in dirt catcher, to carry out the process of flue gas, and at main trachea 18, flow valve 17 is installed on one end of cleaner unit 24, flow valve 17 coordinates with cleaner unit 24, the efficiency making cleaner unit 24 matches with flue gas input, to the full extent smoke filtration is processed, stop the loss of furnace roof flue gas, it is to avoid pollute environment.Wherein, flue gas forms turbulent flow when moving in bronchus 22 and main trachea 18 so that flue gas can form certain impact to inner surface of trachea having component velocity, i.e. flue gas in the radial direction along trachea, and similarly flow of flue gas can be caused certain obstruction by inner surface of trachea；And, turbulent flow can be regarded as the flowing being formed by stacking by the vortex of various different scales from physically saying, the size of these whirlpools is random in the distribution of trachea axis direction, the vortex of large scale mainly has the boundary condition of flowing to be certainly sized, can be comparable with the size in flow field, it is the reason causing low frequency pulsating；The vortex of little yardstick is mainly toughness power and is determined, its size may only have the one thousandth magnitude of flow field yardstick, is the reason causing dither；Microvortex rotation is formed after the Vortex Breakdown of large scale, the vortex of less yardstick is formed after the Vortex Breakdown of smaller scale, thus in full-blown turbulent region, the yardstick of watery nasal discharge vortex can change in comparatively wide scope continuously, the vortex of large scale is constantly obtained energy from main flow and is set up by the interaction energy between vortex and transmit to little vortex, finally just convert due to the vortex constantly disappearance mechanical energy acting on little yardstick of fluid viscosity or be referred to as the heat energy for fluid that dissipates, the temperature i.e. causing main trachea 18 drastically raises, pressure in main trachea 18 increases, correspondingly, the workload of blower fan 14 also sharply increases.And in the present invention, gas skirt 20 is made up of collection section and refraction section, and on the inwall of collection section, have the helicla flute 19 being distributed along its axis direction, the flue gas before entering main trachea 18 is made to gradually form the eddy current of large scale in gas skirt 20, and non-turbulent flow, i.e. flue gas is rotationally advancing around the axis of trachea, particularly in being perpendicular to horizontal main trachea 18 part, the energy that the energy that the flue gas being rotationally advancing is consumed is consumed when rising less than flue gas under normal circumstances, and the mechanical energy of fluid to be converted to the amount of heat energy less, the variations in temperature of main trachea 18 is inconspicuous, and then reduce blower fan 14 and the consumption of electric power.
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 the present invention 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.
The present embodiment passes through flap valve 21, and the flow that the flue gas in gas skirt 20 can enter bronchus 22 and main trachea 18 regulates and controls, it is to avoid idle running or overload occurs in the workload of blower fan 14, and then reduces cost when fume collection processes.When the flue gas loss of the little burner of coke side is serious, during the fume collection overload of bronchus 22 and main trachea 18, it is positioned at the flue gas switching valve 23 on main trachea 18 can directly connect with ground station for dust removal, auxiliary conducting can be carried out by flue gas in gas skirt 20, improve the fume collection treatment effeciency in the little burner of coke side.
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；The present invention 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, maximizes 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.
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 (6)
1. the little burner of coke side leads cigarette system, furnace roof baseline (16) is provided with support seat (15), blower fan (14) and cleaner unit (24) are fixed on described support seat (15), it is characterized in that: also include main trachea (18) and multiple gas skirt (20), described gas skirt (20) covers directly over outside two little burners of adjacent coke side, described main trachea (18) one end connects with inlet scoop, cleaner unit (24) air inlet of blower fan (14) respectively, and main trachea (18) other end is connected with multiple described gas skirts (20) by bronchus (22)；Described gas skirt (20) is made up of interconnective collection section and refraction section, described collection section is tubular and offers helicla flute (19) along its axis direction wall within it, and described refraction section is coniform and its cone tip portion connects with described bronchus (22) end；Described cleaner unit 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), air jet pipe (5) it is provided with in described clean air cavity, 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 little burner of coke side the most according to claim 1 leads cigarette system, it is characterised in that: being provided with flap valve (21) at described bronchus (22) end, described flap valve (21) connects with described refraction section upper end.
A kind of little burner of coke side the most according to claim 1 leads cigarette system, it is characterised in that: on described main trachea (18), flue gas switching valve (23) is installed.
A kind of little burner of coke side the most according to claim 1 leads cigarette system, 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 little burner of coke side the most according to claim 1 leads cigarette system, 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 little burner of coke side the most according to claim 1 leads cigarette system, it is characterised in that: the bottom of described casing (13) is provided with revolving valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295018.8A CN105879543A (en) | 2016-05-06 | 2016-05-06 | Flue gas guide system of coke-side small furnace ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295018.8A CN105879543A (en) | 2016-05-06 | 2016-05-06 | Flue gas guide system of coke-side small furnace ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105879543A true CN105879543A (en) | 2016-08-24 |
Family
ID=56702246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295018.8A Pending CN105879543A (en) | 2016-05-06 | 2016-05-06 | Flue gas guide system of coke-side small furnace ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105879543A (en) |
-
2016
- 2016-05-06 CN CN201610295018.8A patent/CN105879543A/en active Pending
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Application publication date: 20160824 |