CN214142496U - Nose zinc ash treatment device of continuous hot galvanizing furnace - Google Patents
Nose zinc ash treatment device of continuous hot galvanizing furnace Download PDFInfo
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- CN214142496U CN214142496U CN202022164544.5U CN202022164544U CN214142496U CN 214142496 U CN214142496 U CN 214142496U CN 202022164544 U CN202022164544 U CN 202022164544U CN 214142496 U CN214142496 U CN 214142496U
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 268
- 239000011701 zinc Substances 0.000 title claims abstract description 261
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 261
- 238000005246 galvanizing Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 104
- 239000010959 steel Substances 0.000 claims abstract description 104
- 239000007924 injection Substances 0.000 claims abstract description 43
- 238000002347 injection Methods 0.000 claims abstract description 43
- 238000000137 annealing Methods 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 30
- 230000007547 defect Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 91
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 230000000087 stabilizing effect Effects 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000004401 flow injection analysis Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
A nose zinc ash treatment device of a continuous hot galvanizing furnace is used for environment-friendly zinc ash treatment of a continuous hot galvanizing high-speed unit, belongs to the technical field of hot galvanizing furnace nose zinc ash treatment equipment manufacture, and comprises a plate type zinc ash suction device which is provided with a first suction chamber, a second suction chamber, a third suction chamber and a gas injection chamber in sequence from one end of a furnace nose close to an annealing furnace to one end of the furnace nose close to a zinc pot, and the gaseous injection pipeline and the gaseous suction pipeline of the same centre of a circle in cross-section of being connected with board-like zinc ash aspirator, the utility model discloses a board-like zinc ash aspirator cooperation outside pipeline is gaseous suction pipeline, inside pipeline is the mode of the gaseous transport concentric tube way of gaseous injection pipeline, designs a continuous hot galvanizing furnace nose zinc ash processing apparatus, and the furnace nose of having solved vertical annealing stove is in the liquid zinc of submergence in the zinc pot, and the problem that zinc ash produced the zinc ash defect on belted steel along with belted steel traffic direction adhesion.
Description
Technical Field
The utility model provides a hot galvanizing furnace nose zinc ash processing apparatus in succession for the environmental protection zinc ash of the high-speed unit of hot galvanizing in succession handles, belongs to hot galvanizing furnace nose zinc ash processing apparatus manufacturing technical field.
Background
The furnace nose of the neutral annealing furnace in the continuous hot galvanizing production is normally immersed in liquid zinc in a zinc pot, zinc steam generated after heated strip steel is immersed in zinc liquid meets nitrogen in the furnace nose to generate condensed zinc ash, the zinc ash is brought into a quenching section of the annealing furnace through the furnace nose along with nitrogen or nitrogen-hydrogen mixed gas, the other part of the zinc ash is adhered to the inner wall of the furnace nose, and the zinc ash is floated on the strip steel and the zinc liquid level in the furnace nose after being excessively gathered and adhered to the strip steel along with the running direction of the strip steel to generate zinc ash defects.
After a large amount of zinc ash is gathered in the furnace nose of the vertical furnace, abnormal vibration can occur along with the operation of a production line, zinc ash falls onto strip steel and a zinc liquid level in the furnace nose under the influence of the flowing of protective gas in the furnace, most of the zinc ash falls on the upper surface of the strip steel and is taken out of a zinc pot along with the strip steel operated by the production line, the product is leaked to be plated or the adhesive force of a plating layer is not strong due to the large amount of zinc ash, the defects of plating layer cracking, dezincification and local leakage plating can occur in riveting or stamping DDQ-grade household appliance boards, the abrasion of a die is increased during the processing of customers, the service life of the die is shortened, the production cost is improved, the product quality cannot be guaranteed, and the products subjected to local dezincification flow into a humid place in the south or the north and can be corroded too early when being used.
People also find a plurality of methods for treating and inhibiting zinc ash, such as a nitrogen humidifying system, a zinc ash filtering system, a zinc pumping pump and other equipment, but the problems of zinc ash generation and product quality cannot be solved effectively fundamentally, the zinc ash adhered to the upper surface of the strip steel is more a negative factor for a zinc pot sinking roller and a rear stabilizing roller which are contacted with the upper surface of the strip steel than the lower surface of the strip steel, because the zinc ash is adhered to the upper surface of the strip steel and then generates friction after passing through the sinking roller and the rear stabilizing roller, the zinc ash is taken away by the sinking roller and the rear stabilizing roller, the increase of the slag adhesion amount of the sinking roller and the rear stabilizing roller is influenced, new defects are generated, and the equipment in the zinc pot is extremely adversely influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's shortcoming, adopt board-like zinc ash aspirator cooperation outside pipeline to be gaseous suction pipeline, the inside pipeline is the mode of the gaseous transport concentric tube way that sprays the pipeline, design a continuous hot galvanizing furnace nose zinc ash processing apparatus, the furnace nose of having solved vertical annealing stove is in the liquid zinc of submergence in the zinc pot, the zinc steam that the belted steel after the heating produced after immerging in the zinc liquid meets the nitrogen gas in the furnace nose and produces the condensation zinc ash, the zinc ash is along with nitrogen gas or nitrogen hydrogen mist carry over the furnace nose into the quench section of annealing stove, and the adhesion is on the inner wall of furnace nose, can drift down to the belted steel on with the zinc liquid level in the furnace nose after gathering too much, along with the problem that the belted steel traffic direction adhesion produced the zinc ash defect on the belted steel.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
a zinc ash treatment device for a nose of a continuous hot galvanizing furnace comprises a plate type zinc ash suction device, wherein the plate type zinc ash suction device is arranged on the surface of strip steel on the inner side wall of the nose of the furnace, the projection of the plate type zinc ash suction device on the collinear vertical surface with the length direction line of the strip steel in the nose of the furnace is in a trapezoid shape, the longer bottom side of the trapezoid shape is fixedly connected with the inner side wall of the nose of the furnace, the plate type zinc ash suction device is sequentially provided with a first suction chamber, a second suction chamber, a third suction chamber and a gas injection chamber from one end, close to a zinc pot, of the nose of the furnace to one end, close to the inner side wall of the nose of the furnace, and is connected with a gas conveying concentric pipeline penetrating through the side wall of the nose of the furnace, the gas conveying concentric pipeline comprises a gas injection pipeline and a gas suction pipeline, the cross section of which is concentric, the gas injection pipeline is arranged in the gas suction pipeline, and the gas injection pipeline is connected with a ventilation body in the nose, one end of the gas suction pipeline in the furnace nose is respectively communicated with the first suction chamber, the second suction chamber, the third suction chamber and the gas injection chamber, and the end part of the gas suction pipeline outside the furnace nose is connected with the zinc ash treatment mechanism.
In the utility model, a plate-type zinc ash aspirator is arranged on the inner side wall of a furnace nose of a galvanizing annealing furnace, the plate-type zinc ash aspirator is correspondingly arranged on the surface of strip steel and is arranged in the width direction of the furnace nose, furnace gas containing zinc ash in the furnace nose is pumped out and filtered by the plate-type zinc ash aspirator and then is sent into the furnace nose again to be close to the annealing furnace, the interior of the furnace nose is sealed by zinc liquid in a zinc pot at the opening of the tail end of the furnace nose, air is prevented from entering the interior of the furnace nose to influence the atmosphere in the annealing furnace, the strip steel enters the zinc liquid after being heated by the annealing furnace, the zinc ash can be generated in the furnace nose after the zinc liquid surface is contacted with high-temperature strip steel, the strip steel bypasses a zinc pot sink roll and then goes out of the zinc pot to run upwards after passing through a rear stabilizing roll and a front stabilizing roll, the end with the longest side length of the plate-type zinc ash aspirator is arranged in the furnace nose, the whole body is in a flat shape, two tail ends are gradually contracted in the furnace nose, the strip steel is positioned at the highest point of the trapezoid at the distance from the nearest end of the strip steel, a gradual transition mode is adopted, even if the strip steel is scraped to a plate type zinc ash aspirator, the strip steel can not be broken, the gas conveying concentric pipeline is the combination of the suction pipelines of the first suction cavity, the second suction cavity and the third suction cavity and the air supply pipeline of the gas injection cavity, gas and injection gas are independently sucked, the gas injection pipeline is positioned in the gas suction pipeline, in order that the temperature of the strip steel plate is not influenced by cooling gas, the gas injection pipeline is used for heating the small-flow injection gas and transferring the heat generated by the high-temperature gas suction pipeline to the pipeline wall to realize the heating purpose, so that the temperature of the injection gas is close to the temperature of the strip steel plate, the accurate control of the actual plate temperature of the strip steel entering a zinc pot is ensured, and the use efficiency; the utility model solves the problems of the pipeline trend and the energy utilization in the narrow space, reduces the energy consumption, the gas suction pipeline sucks out the zinc ash in the furnace nose, the sucked zinc ash is processed by the zinc ash processing mechanism, the utility model adopts the mode that the plate-type zinc ash suction device is matched with the gas conveying concentric pipeline of which the outer pipeline is the gas suction pipeline and the inner pipeline is the gas injection pipeline, designs a continuous hot galvanizing furnace nose zinc ash processing device, solves the problem that the furnace nose of the vertical annealing furnace is immersed in the liquid zinc in the zinc pot, the zinc steam generated after the heated strip steel is immersed in the zinc liquid meets the nitrogen in the furnace nose to generate condensed zinc ash, the zinc ash is carried into the quenching section of the annealing furnace along with the nitrogen or the nitrogen-hydrogen mixed gas through the furnace nose, and the zinc ash adheres to the inner wall of the furnace nose, and can float to the strip steel and the zinc liquid level in the furnace nose after being excessively gathered, and the zinc ash defect is generated by the adhesion of the zinc ash on the strip steel along with the running direction of the strip steel.
In a preferable mode, the surface of the plate type zinc ash suction device is provided with a plurality of suction holes with the distance of 10-20mm and the diameter of 8-12 mm.
As a preferable mode, the surface of the plate type zinc ash suction device is provided with a plurality of slit type suction nozzles which are vertical to the surface of the strip steel or staggered with 30-90 degrees of inclination, the distance between the slit type suction nozzles is 50-500mm, and the inner diameter of the slit type suction nozzle is 8-10 mm.
Preferably, the zinc ash treatment mechanism comprises a suction filter, the input end of the suction filter is communicated with the gas suction pipeline through a filter suction pipeline, the output end of the suction filter is respectively provided with a filter exhaust pipeline and a filter conveying pipeline, one end of the filter exhaust pipeline, far away from the suction filter, is close to the annealing furnace and is communicated with the inside of the furnace nose, and one end of the filter conveying pipeline, far away from the suction filter, is connected with a zinc ash hopper.
As a preferable mode, a plurality of plate-type zinc ash suction devices are arranged on the inner side wall of the furnace nose on the upper surface and the lower surface of the strip steel in a staggered mode, and the distance from the plate-type zinc ash suction devices on the upper surface of the strip steel to the upper surface of the strip steel is equal to the distance from the plate-type zinc ash suction devices on the lower surface of the strip steel to the lower surface of the strip steel.
As a preferable mode, a suction balance cavity is arranged among the first suction cavity, the second suction cavity and the third suction cavity, a reinforcing rib penetrating through the plate type zinc ash suction device is arranged on the suction balance cavity, and the reinforcing rib is perpendicular to the inner side wall of the furnace nose.
Preferably, the reinforcing rib is two partition plates which divide the third suction chamber into a transition area parallel to the strip steel.
As a preferable mode, an external vibrator of the furnace nose is arranged on the outer side wall of the furnace nose.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a board-like zinc ash aspirator cooperation outside pipeline is gaseous suction pipeline, the inner tube is the mode of the gas transmission concentric tube way of gas injection pipeline, design a continuous hot galvanizing furnace nose zinc ash processing apparatus, the furnace nose of having solved vertical annealing stove is in the liquid zinc of submergence in the zinc pot, the zinc steam that belted steel after the heating produced after immerging in the zinc liquid meets the nitrogen gas in the furnace nose and produces condensation zinc ash, zinc ash brings into the quench section of annealing stove along with nitrogen gas or nitrogen hydrogen mist through the furnace nose, and the adhesion is on the inner wall of furnace nose, can drift to on belted steel and the zinc liquid level in the furnace nose after the gathering is too much, along with the problem that belted steel traffic direction adhesion produced the zinc ash defect on the belted steel.
(2) The utility model discloses a porous formula suction zinc ash division board cavity that forms is adopted on the surface of board-like zinc ash aspirator, the inside zinc ash of absorption furnace nose of the largest area.
(3) The utility model adopts a slit type suction nozzle which is vertical to or staggered with the surface of the strip steel and has an inclination of 30-90 degrees in a plurality of directions, and can absorb the zinc ash in the furnace nose 1 and on the surface of the strip steel in a large area.
(4) The utility model discloses a board-like zinc ash aspirator's gas transmission concentric pipe is connected with zinc ash filter suction pipeline, and zinc ash suction filter is connected with zinc ash filter suction pipeline, zinc ash filter exhaust duct, zinc ash filter pipeline are connected, and zinc ash filter pipeline is connected with zinc ash collection cabin. Furnace gas with zinc ash extracted by the plate-type zinc ash suction device is conveyed to the zinc ash suction filter through a zinc ash filter suction pipeline for filtering, the zinc ash suction filter also has the functions of sucking and filtering the zinc ash, and clean gas after filtering is conveyed to an ascending section of the furnace nose through a zinc ash filter exhaust pipeline for recycling by utilizing the pressure provided by the zinc ash suction filter, so that normal furnace pressure is ensured, and the energy consumption is reduced. And conveying the zinc ash filtered by the zinc ash suction filter to a zinc ash collection tank through a pipeline for centralized treatment.
(5) The utility model discloses there are two sets of corresponding plate-type zinc ash suction devices at zinc-plating annealing furnace nose 1 internally mounted, arrange on the upper and lower surface of belted steel respectively, arrange the width direction of furnace nose in, send into the furnace nose once more after taking out the burner gas that contains zinc ash in the furnace nose through plate-type zinc ash suction device and filtering and be close to one section of annealing stove, furnace nose 1 inserts in the zinc-liquid of zinc pot, zinc liquid level keeps certain immersion distance with the end of furnace nose, prevent to get into air in the furnace nose, the plate-type zinc ash suction device lowest end and the zinc liquid level that are close to the zinc pot keep 300-, air is prevented from entering the interior of the furnace nose to influence the atmosphere in the annealing furnace, strip steel enters zinc liquid after being heated by the annealing furnace, zinc ash generated in the interior of the furnace nose can be influenced after the zinc liquid surface is contacted with high-temperature strip steel, and the strip steel bypasses a zinc pot sink roller, passes through a rear stabilizing roller and a front stabilizing roller and then is discharged out of a zinc pot and runs upwards; the plate type zinc ash suction device corresponds to the upper surface of the strip steel in the furnace nose, the amount of zinc ash on the upper surface of the strip steel is large relative to the amount of zinc ash on the lower surface of the strip steel, after the zinc ash is generated, the zinc ash can flow to other sections of the annealing furnace along with the protective gas in the furnace, a large amount of zinc ash can be continuously gathered on the shell in the furnace nose along with the prolonging of production time and covers the surface, the zinc ash on the top end and two sides in the furnace nose is vibrated to fall downwards, one part of the zinc ash falls on the upper surface of the strip steel, the other part of the zinc ash falls on the bottom of the furnace nose in a gap between the edge part of the strip steel and the side wall of the furnace nose, and the wider the width of the strip steel is the less zinc ash falls on the bottom of the furnace nose, and the more zinc ash is the other part of the strip steel; a large amount of zinc ash floats on the upper surface of the strip steel, one part of the zinc ash is adhered to the strip steel and taken away by the strip steel through the operation of the strip steel, and the other part of the zinc ash is gathered on the surface of zinc liquid in the furnace nose; the zinc ash amount processed by the plate-type zinc ash suction device corresponding to the upper surface of the strip steel is larger than that of the plate-type zinc ash suction device corresponding to the lower surface of the strip steel.
(6) The reinforcing ribs arranged in the plate-type zinc ash aspirator are connected with the gas conveying concentric pipeline, the first aspiration cavity, the second aspiration cavity and the third aspiration cavity, and are welded on the aspiration balance cavity and run through the aspiration balance cavity; the plate-type zinc ash aspirator adopts a stainless steel series, has the capabilities of high temperature resistance and harmful gas corrosion resistance, adopts the structural design of the reinforcing ribs inside the plate-type zinc ash aspirator, and prevents the cavity from deforming or damaging due to serious bad plate shape scraping.
(7) The utility model discloses there is a transition district that is on a parallel with belted steel in the middle of apart from belted steel nearer second suction cavity and third suction cavity, the suction force of this transition district is greater than other transition districts, the mode inside the furnace nose is installed to the longest one end of cooperation board-like zinc ash aspirator side length, make the whole of board-like zinc ash aspirator be in flat shape, two ends shrink gradually and hug closely inside the furnace nose, the nearest department apart from belted steel is in trapezoidal peak, through the mode of transition gradually, belted steel is even scraped and is rubbed board-like zinc ash aspirator and can not lead to the possibility that belted steel broke off the area yet, improve the passing rate of bad board type.
(8) The utility model discloses an externally mounted at the stove nose has an external vibrator of stove nose, use interchange or direct current drive all can, vibration frequency is adjustable, vibration power will satisfy the stove nose and can alleviate the zinc ash volume of adhering to in the stove nose inside under certain amplitude, the vibrator is used for sending out the vibration before thoroughly clearing up stove nose zinc ash, the zinc ash that can't handle to the adhering to of stove nose inside leaves adnexed object through the vibration, drop in stove nose below, the gaseous jet chamber spun gas of crossing plate-type zinc ash aspirator clears away the zinc ash that falls at the stove nose end once more, reach the mesh of thoroughly clearing up the zinc ash.
Drawings
FIG. 1 is a front view of a middle plate type zinc ash suction device of the present invention;
FIG. 2 is a top view of the middle plate type zinc ash suction device of the present invention;
FIG. 3 is a left side view of the middle plate type zinc ash suction device of the present invention;
FIG. 4 is a schematic structural view of a gas conveying concentric pipeline of the middle plate type zinc ash suction device of the present invention;
FIG. 5 is a schematic diagram of the practical application of the present invention;
FIG. 6 is a schematic gas flow diagram of a plate zinc ash aspirator;
FIG. 7 is a schematic diagram of zinc ash filtration in a plate type zinc ash suction device.
Wherein, 1, a furnace nose; 101. a plate-type zinc ash aspirator; 1010. the inner side wall of the furnace nose; 1011. the furnace nose is externally provided with a vibrator; 1012. a gas delivery concentric tube; 10121. a gas suction duct; 10122. a gas injection conduit; 1013. a suction balancing chamber; 1014. a gas injection chamber; 1015. a first suction chamber; 1016. a second suction chamber; 1017. reinforcing ribs; 1018. a third suction chamber; 1019. a suction hole; 102. a zinc ash collection chamber; 1021. a filter exhaust conduit; 1022. a suction filter; 1023. a filter delivery conduit; 1024. a filter suction duct; 1025. a zinc ash hopper; 1026. a transition zone; 103. an injection duct; 2. strip steel; 3. a zinc pot; 4. zinc liquid; 5. a zinc pot sink roll; 6. a rear stabilizing roller; 7. a front stabilizing roller; 8. the zinc level.
Detailed Description
Example 1:
referring to fig. 1-7, a zinc ash treatment device for a nose of a continuous hot galvanizing furnace comprises a plate-type zinc ash suction device 101 which is arranged on the surface of a strip steel 2 on the inner side wall 1010 of the nose of the furnace, wherein the projection of the plate-type zinc ash suction device 101 on a vertical surface which is collinear with the length direction line of the strip steel 2 in the nose of the furnace 1 is in a trapezoid shape, the longer bottom side of the trapezoid shape is fixedly connected with the inner side wall of the nose of the furnace 1, a first suction chamber 1015, a second suction chamber 1016, a third suction chamber 1018 and a gas injection chamber 1014 are sequentially arranged from one end of the nose 1 close to an annealing furnace to one end of the nose 1 close to a zinc pot 3, one end of the plate-type zinc ash suction device 101 close to the inner side wall of the nose 1 is connected with a gas conveying concentric pipeline which penetrates through the side wall of the nose 1012 of the furnace, the gas conveying concentric pipeline 1012 comprises a gas injection pipeline 10122 and a gas suction pipeline 10121 which have the same circle center, the gas injection pipeline 10122 is positioned in the gas suction pipeline 10121, the gas injection pipeline 10122 is communicated with the gas injection chamber 1014 in the furnace nose 1, one end of the gas suction pipeline 10121 in the furnace nose 1 is respectively communicated with the first suction chamber 1015, the second suction chamber 1016, the third suction chamber 1018 and the gas injection chamber 1014, and the end part of the gas suction pipeline 10121 outside the furnace nose 1 is connected with the zinc ash treatment mechanism.
Furthermore, a plurality of slit type suction nozzles which are perpendicular to the surface of the strip steel 2 in the direction or are staggered with the surface of the strip steel 2 and incline at 30-90 degrees are arranged on the surface of the plate type zinc ash suction device 101, the distance between the slit type suction nozzles is 50-500mm, the inner diameter of each slit type suction nozzle is 8-10mm, and the zinc ash in the furnace nose 1 and on the surface of the strip steel can be absorbed in a large area.
In the embodiment, a plate type zinc ash suction device 101 is installed on the inner side wall 1010 of the furnace nose of the galvanizing annealing furnace, the plate type zinc ash suction device 101 is correspondingly arranged on the surface of the strip steel 2 and is arranged in the width direction of the furnace nose 1, furnace gas containing zinc ash in the furnace nose 1 is pumped out and filtered through the plate type zinc ash suction device 101 and then is sent into the furnace nose 1 to be close to the annealing furnace, the interior of the furnace nose 1 is sealed by zinc liquid in a zinc pot 3 at the opening at the tail end of the furnace nose 1, air is prevented from entering the interior of the furnace nose 1 to influence the atmosphere of the annealing furnace, the strip steel 2 enters zinc liquid 4 after being heated through the annealing furnace, the zinc liquid surface is influenced to generate zinc ash in the furnace nose 1 after being contacted with the high-temperature strip steel 2, the strip steel 2 bypasses a zinc pot sinking roller 5 and passes through a rear stabilizing roller 6 and a front stabilizing roller 7 to go out of the zinc pot 3 to run upwards, the longest side length of the plate type zinc ash suction device 101 is installed on the inner side wall 1010 of the furnace nose, the plate type zinc ash suction device 101 is in a flat shape as a whole, two tail ends of the plate type zinc ash suction device are gradually contracted and tightly attached between two ends of the furnace nose 1, the nearest end of the strip steel 2 is positioned at the highest point of a trapezoid, a gradual transition mode is adopted, even if the strip steel 2 is scraped to the plate type zinc ash suction device 101, the strip steel 2 can not be broken, the gas conveying concentric pipeline 1012 is the combination of the air supply pipelines of the gas suction pipeline 10121 and the gas injection pipeline 10122, gas and injection gas are independently sucked, the gas injection pipeline 10122 is positioned in the gas suction pipeline 10121, in order to not influence the plate temperature of the strip steel 2 on the influence of cooling gas, the gas injection pipeline 10122 is used for heating the small-flow injection gas, transferring heat generated by the high-temperature gas suction pipeline 10121 to the pipeline wall to realize the heating purpose, so that the temperature of the injection gas is close to the plate, the actual plate temperature of the strip steel 2 entering the zinc pot 3 is accurately controlled, and the use efficiency of the jet gas is improved; the utility model solves the problems of the pipeline trend and the energy utilization in the narrow space, reduces the energy consumption, the gas suction pipeline 10121 sucks the zinc ash in the furnace nose 1, and the sucked zinc ash is processed by the zinc ash processing mechanism, the utility model adopts the mode that the plate-type zinc ash suction device 101 is matched with the gas suction pipeline 10121 as the external pipeline and the gas transmission concentric pipeline 1012 as the gas injection pipeline 10122 as the internal pipeline, designs a continuous hot galvanizing furnace nose zinc ash processing device, solves the problem that the furnace nose 1 of the vertical annealing furnace is immersed in the liquid zinc in the zinc pot 3, the zinc steam generated after the heated strip steel 2 is immersed in the zinc liquid 4 meets the nitrogen in the furnace nose 1 to generate condensed zinc ash, the zinc ash is brought into the quenching section of the annealing furnace through the furnace nose 1 along with the nitrogen or the nitrogen-hydrogen mixed gas and is adhered to the inner side wall 1010 of the furnace nose, and can float on the strip steel 2 and the zinc liquid level in the furnace nose 1 after being gathered too much, the zinc ash defect is generated along with the adhesion of the strip steel 2 on the strip steel 2 in the running direction.
Example 2:
referring to fig. 1-7, a zinc ash treatment device for a nose of a continuous hot galvanizing furnace comprises a plate-type zinc ash suction device 101 which is arranged on the surface of a strip steel 2 on the inner side wall 1010 of the nose of the furnace, wherein the projection of the plate-type zinc ash suction device 101 on a vertical surface which is collinear with the length direction line of the strip steel 2 in the nose of the furnace 1 is in a trapezoid shape, the longer bottom side of the trapezoid shape is fixedly connected with the inner side wall of the nose of the furnace 1, a first suction chamber 1015, a second suction chamber 1016, a third suction chamber 1018 and a gas injection chamber 1014 are sequentially arranged from one end of the nose 1 close to an annealing furnace to one end of the nose 1 close to a zinc pot 3, one end of the plate-type zinc ash suction device 101 close to the inner side wall of the nose 1 is connected with a gas conveying concentric pipeline which penetrates through the side wall of the nose 1012 of the furnace, the gas conveying concentric pipeline 1012 comprises a gas injection pipeline 10122 and a gas suction pipeline 10121 which have the same circle center, the gas injection pipeline 10122 is positioned in the gas suction pipeline 10121, the gas injection pipeline 10122 is communicated with the gas injection chamber 1014 in the furnace nose 1, one end of the gas suction pipeline 10121 in the furnace nose 1 is respectively communicated with the first suction chamber 1015, the second suction chamber 1016, the third suction chamber 1018 and the gas injection chamber 1014, and the end part of the gas suction pipeline 10121 outside the furnace nose 1 is connected with the zinc ash treatment mechanism.
Furthermore, a plurality of suction holes 1019 with the interval of 10-20mm and the diameter of 8-12mm are arranged on the surface of the plate type zinc ash suction device 101, a cavity formed by a porous type zinc ash suction isolation plate is adopted on the surface of the plate type zinc ash suction device 101, and the zinc ash in the furnace nose 1 is sucked in the largest area.
Further, the zinc ash treatment mechanism comprises a suction filter 1022, the input end of the suction filter 1022 is communicated with the gas suction pipeline 10121 through a filter suction pipeline 1024, the output end of the suction filter 1022 is respectively provided with a filter exhaust pipeline 1021 and a filter conveying pipeline 1023, one end of the filter exhaust pipeline 1021, which is far away from the suction filter 1022, is communicated with the inside of the furnace nose 1 near the annealing furnace at the furnace nose 1, and one end of the filter conveying pipeline 1023, which is far away from the suction filter 1022, is connected with a zinc ash hopper 1025.
Furthermore, a plurality of plate-type zinc ash suction devices 101 are arranged on the inner side wall 1010 of the furnace nose on the upper surface and the lower surface of the strip steel 2 in a staggered mode, and the distance from the plate-type zinc ash suction devices 101 on the upper surface of the strip steel 2 to the upper surface of the strip steel 2 is equal to the distance from the plate-type zinc ash suction devices 101 on the lower surface of the strip steel 2 to the lower surface of the strip steel 2.
Furthermore, a suction balance cavity 1013 is arranged among the first suction chamber 1015, the second suction chamber 1016 and the third suction chamber 1018, a reinforcing rib (1017) penetrating through the plate type zinc ash suction device 101 is arranged on the suction balance cavity 1013, the reinforcing rib 1017 is perpendicular to the inner side wall 1010 of the furnace nose, and the plate type zinc ash suction device 101 adopts a reinforcing rib 1017 structure design, so that the cavity is prevented from being deformed or damaged due to severe bad plate type scratches.
Further, the stiffener 1017 is formed as two partitions that separate the third pumping chamber 1018 into a transition region 1026 parallel to the strip 2.
Further, be equipped with stove nose external vibrator 1011 on the lateral wall of stove nose 1, stove nose external vibrator 1011 uses interchange or direct current drive all can, and the vibration frequency is adjustable, and vibration power will satisfy stove nose 1 and can alleviate the zinc ash volume of adhering to in stove nose 1 inside under certain amplitude, stove nose external vibrator 1011 is used for giving out the vibration before thoroughly clearing up stove nose zinc ash, and the zinc ash that can't handle to adhering to in stove nose 1 inside leaves adnexed object through the vibration, drops in stove nose 1 below, and the gas that crosses gas injection cavity 1014 blowout of board-like zinc ash aspirator 101 clears up the zinc ash that falls in stove nose 1 terminal once more, reaches the mesh of thoroughly clearing up the zinc ash.
Claims (8)
1. The utility model provides a zinc ash processing apparatus of continuous hot galvanizing furnace nose which characterized in that: comprises a plate-type zinc ash suction device (101) which is arranged on the surface of a strip steel (2) on the inner side wall (1010) of a furnace nose, wherein the projection of the plate-type zinc ash suction device (101) on the vertical surface which is collinear with the length direction line of the strip steel (2) in the furnace nose (1) is in a trapezoid shape, the longer bottom edge of the trapezoid shape is fixedly connected with the inner side wall of the furnace nose (1), the plate-type zinc ash suction device (101) is sequentially provided with a first suction chamber (1015), a second suction chamber (1016), a third suction chamber (1018) and a gas injection chamber (1014) from one end of the furnace nose (1) close to an annealing furnace to one end of the furnace nose (1) close to a zinc pot (3), one end of the plate-type zinc ash suction device (101) close to the inner side wall of the furnace nose (1) is connected with a gas conveying concentric pipeline (1012) penetrating through the side wall of the furnace nose (1), and the gas conveying concentric pipeline (1012) comprises a gas injection pipeline (10122) and a gas suction pipeline (10121) with the same section as the center of a circle, the gas injection pipeline (10122) is positioned in the gas suction pipeline (10121), the gas injection pipeline (10122) is communicated with the gas injection chamber (1014) in the furnace nose (1), one end of the gas suction pipeline (10121) in the furnace nose (1) is respectively communicated with the first suction chamber (1015), the second suction chamber (1016), the third suction chamber (1018) and the gas injection chamber (1014), and the end part of the gas suction pipeline (10121) outside the furnace nose (1) is connected with the zinc ash treatment mechanism.
2. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: the surface of the plate-type zinc ash suction device (101) is provided with a plurality of suction holes (1019) with the spacing of 10-20mm and the diameter of 8-12 mm.
3. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: the surface of the plate-type zinc ash suction device (101) is provided with a plurality of slit-type suction nozzles which are vertical to the surface of the strip steel (2) in the direction or are staggered with each other and have inclination of 30-90 degrees, the distance between the slit-type suction nozzles is 50-500mm, and the inner diameter of the slit-type suction nozzle is 8-10 mm.
4. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: the zinc ash treatment mechanism comprises a suction filter (1022), the input end of the suction filter (1022) is communicated with a gas suction pipeline (10121) through a filter suction pipeline (1024), the output end of the suction filter (1022) is respectively provided with a filter exhaust pipeline (1021) and a filter conveying pipeline (1023), one end of the filter exhaust pipeline (1021) far away from the suction filter (1022) is communicated with the inside of a furnace nose (1) near the furnace nose (1) close to an annealing furnace, and one end of the filter conveying pipeline (1023) far away from the suction filter (1022) is connected with a zinc ash hopper (1025).
5. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: the furnace nose inside wall (1010) is arranged on the upper surface and the lower surface of the strip steel (2) in a staggered manner and is provided with a plurality of plate-type zinc ash suction devices (101), and the distance from the plate-type zinc ash suction devices (101) on the upper surface of the strip steel (2) to the upper surface of the strip steel (2) is equal to the distance from the plate-type zinc ash suction devices (101) on the lower surface of the strip steel (2) to the lower surface of the strip steel (2).
6. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: a suction balance cavity (1013) is arranged among the first suction chamber (1015), the second suction chamber (1016) and the third suction chamber (1018), reinforcing ribs (1017) penetrating through the plate type zinc ash suction device (101) are arranged on the suction balance cavity (1013), and the reinforcing ribs (1017) are perpendicular to the inner side wall (1010) of the furnace nose.
7. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 6, wherein: the reinforcing ribs (1017) are two partition plates which separate a transition region (1026) parallel to the steel strip (2) in the third suction chamber (1018).
8. The zinc dust treatment device for the nose of the continuous hot galvanizing furnace according to the claim 1, wherein: the outer side wall of the furnace nose (1) is provided with a furnace nose external vibrator (1011).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022164544.5U CN214142496U (en) | 2020-09-28 | 2020-09-28 | Nose zinc ash treatment device of continuous hot galvanizing furnace |
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| CN202022164544.5U CN214142496U (en) | 2020-09-28 | 2020-09-28 | Nose zinc ash treatment device of continuous hot galvanizing furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143998A (en) * | 2020-09-28 | 2020-12-29 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A continuous hot-dip galvanizing furnace nose zinc ash treatment device |
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2020
- 2020-09-28 CN CN202022164544.5U patent/CN214142496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143998A (en) * | 2020-09-28 | 2020-12-29 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A continuous hot-dip galvanizing furnace nose zinc ash treatment device |
| CN112143998B (en) * | 2020-09-28 | 2024-11-12 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A zinc ash treatment device for continuous hot-dip galvanizing furnace nose |
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