CN111455300B - Equipment airflow split supply type air knife girder for hot dip galvanized sheet production and use method - Google Patents
Equipment airflow split supply type air knife girder for hot dip galvanized sheet production and use method Download PDFInfo
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- CN111455300B CN111455300B CN202010533101.0A CN202010533101A CN111455300B CN 111455300 B CN111455300 B CN 111455300B CN 202010533101 A CN202010533101 A CN 202010533101A CN 111455300 B CN111455300 B CN 111455300B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 210000001503 joint Anatomy 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 11
- 239000011701 zinc Substances 0.000 description 11
- 229910052725 zinc Inorganic materials 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- Organic Chemistry (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to an airflow split supply type air knife girder of equipment for producing a hot dip galvanized plate and a use method thereof, belonging to the technical field of hot dip galvanized plates in the metallurgical industry. The technical proposal is as follows: the device consists of a girder device, an air inlet pipe device, a guide plate device and an air outlet pipeline device; the air flow output by the fan enters an air inlet pipe (5) and is divided into two equal-flow air flows through an air inlet pipe inner cavity guide plate (6); the two air flows have equal flow and pressure and are stably ejected after being converged in the air knife body (24). On the basis of not changing the whole appearance structure of the air knife girder, the invention ensures that the air knife girder has reasonable internal structure, changes one cavity into two cavities to form a double-flow-channel double-flow air knife girder body, continuously keeps double flow in the girder body, is specially discharged and enters two air inlets arranged at two ends of the air knife body, thereby avoiding air flow turning back, reducing air pressure change and air flow fluctuation, and being particularly suitable for the transformation of the existing equipment for producing the hot galvanized plate.
Description
Technical Field
The invention relates to an airflow split supply type air knife girder of equipment for producing a hot dip galvanized plate and a use method thereof, belonging to the technical field of hot dip galvanized plates in the metallurgical industry.
Background
At present, according to the production process requirements of a hot dip galvanized sheet, an air knife needs an air blower to be in butt joint with an air inlet of an air knife girder through a special air supply pipeline, air is supplied to the girder according to the set air flow and air pressure requirements, an air outlet of the air knife girder is in butt joint with an air inlet of a knife body, then the air flow is sent to the knife body of the air knife, and after the air flow circulates through the knife body, the air flow reaches an air blowing port of the knife body, zinc is blown and scraped through the air blowing port, and the production of the hot dip galvanized sheet is implemented. At present, all air knife girders used for galvanized sheet production are cavity type, the air knife girders are square steel pipes, one end of each girder is provided with an air inlet, air flow directly enters the girder cavity after being in butt joint with an air supply pipeline of a blower, a plurality of air outlets are sequentially arranged at the middle position of the lower end of the cavity and are in butt joint with the air inlets of the same quantity as the knife body, and the air flow flows to the air knife body.
The inner cavity of the air knife girder in the background technology is directly used as a cavity, one end of the girder is connected with air flow and then sequentially sends the air into air knife bodies with different types ranging from 0.75m to 2m through the air exhaust port, and the air knife bodies blow and scrape zinc through the air exhaust port, so that the galvanized sheet production is completed. The knife body air blowing port is a butt joint structure formed by correspondingly installing an upper knife lip and a lower knife lip, the gap of the long knife lip is regulated to be less than 0.5mm according to the whole length of the technological requirement, and in order to ensure the quality of a zinc plate, the zinc thickness is consistent, the plate surface is smooth, the thickness of a zinc layer is controllable and adjustable, and the requirements on the air flow speed, the air pressure and the blowing strength are strict. The air flow is connected into the rear cavity by one end of the air knife girder and sequentially flows along one direction and is sent into the knife body through the girder and the plurality of air outlets of the knife body, and the following problems are obvious in the flow-through mode:
1. the air knife girder mainly has the functions of supporting the air knife body and butting air flow sent by the conveying pipeline to sequentially convey the air flow to the air knife body. The air knife girder is connected with air flow from one cavity, the air flow flows forwards from one end, the middle position of the girder is required to be arranged at the air outlet of the girder according to the production technology requirement, 4 to 8 air outlets are generally arranged in sequence, one end is an air inlet, the other end (also called the top end) is provided with a cavity, when the air flow flows, the air flow is turned back, the air flow is unstable, the air pressure is changed, the air knife girder is connected with the air flow from one end in one cavity, the air flows along one direction, a plurality of air outlets are sequentially arranged in the flowing direction through the big Liang Shunxiang, the air flows are sequentially sent to the air knife body, the air flow and the air pressure are also changed due to different air flow transmission time nodes, the air pressure of each air outlet is sequentially reduced, the air flow is sequentially reduced, the air pressure air flow in the air knife body is inconsistent, and the air blowing effect of the air outlet of the air knife body is affected.
2. The thickness of the zinc layer of the zinc plate is increased according to the set plan; generating uneven zinc thickness in unit area; the quality problems of uneven zinc surface, uneven spangles and the like appear; the control difficulty of the zinc plate production technology is increased, the shutdown rate is increased, and the production efficiency and the economic benefit of enterprises are affected.
Disclosure of Invention
The invention aims to provide an air flow separate supply type air knife girder of equipment for producing hot galvanized plates and a use method thereof, on the basis of not changing the overall appearance structure of the air knife girder, the internal structure of the air knife girder is reasonable, one cavity is changed into two cavities to form a double-flow-channel double-flow air knife girder body, the girder body keeps double flow, special flows are discharged exclusively, and enter two air inlets arranged at two ends of the air knife body, so that the air flow is prevented from turning back, the air pressure change is reduced, the air flow fluctuation is reduced, the air flow separate supply type air knife girder is particularly suitable for the transformation of the existing equipment for producing hot galvanized plates, and the problems in the background art are solved.
The technical scheme of the invention is as follows:
an airflow split supply type air knife girder of equipment for producing hot dip galvanized plates comprises a girder device, an air inlet pipe device, a guide plate device and an air outlet pipeline device;
the girder device comprises a square girder and a girder head blocking plate, wherein the square girder is a square cylinder, two ends of the square girder are respectively blocked by the girder head blocking plate, the upper surface of the right part of the square girder is provided with a girder inner cavity air inlet, and the lower surfaces of the left part and the right part of the square girder are respectively provided with a girder tail end air outlet and a girder front air outlet;
the air inlet pipe device comprises a girder air inlet, an air inlet pipe joint and an air inlet pipe, wherein the inner diameter of the air inlet pipe is matched with that of the girder inner cavity air inlet, the top of the upper end of the air inlet pipe is provided with the air inlet pipe joint, the girder air inlet of the air inlet pipe joint is externally connected with a fan air pipe to receive the air flow conveyed by a fan, and the lower end of the air inlet pipe is butted on the girder inner cavity air inlet to enable the air inlet pipe to be communicated with the square large Liang Qiangti;
the flow guide plate device comprises an air inlet pipe inner cavity flow guide plate, a girder tail end inner cavity flow guide plate, a girder inner cavity flow guide auxiliary plate and a girder tail end inner cavity flow guide auxiliary plate, wherein an air inlet pipe inner cavity flow guide plate is arranged in an air inlet of the girder inner cavity, the upper end of the air inlet pipe inner cavity flow guide plate enters an air inlet pipe, the air inlet pipe is divided into two channels, the lower end of the air inlet pipe inner cavity flow guide plate enters a square girder cavity, the air inlet pipe inner cavity flow guide plate is connected with the girder inner cavity arranged in the square girder cavity into a whole, the square girder cavity is divided into two equal air flow channels which are not communicated with each other, namely an equal air flow channel I and an equal air flow channel II, the equal air flow channel I is communicated with a girder front air outlet on the lower surface of the square girder, and the equal air flow channel II is communicated with a girder tail end air outlet on the lower surface of the square girder; the upper part of the air inlet pipe inner cavity guide plate is internally arranged at the lower end of the air inlet pipe, the width of the air inlet pipe inner cavity guide plate is consistent with the inner diameter of the air inlet pipe, the air inlet pipe is embedded in the middle of the lower end of the air inlet pipe in the forward direction, the air inlet pipe is divided into a left semicircular air inlet pipe and a right semicircular air inlet pipe in a bisecting mode, the air inlet pipe is extended to the air inlet port of the girder inner cavity on the square girder, the air flow accessed by the air inlet pipe is divided into a left equivalent air flow and a right equivalent air flow in a bisecting mode, the air inlet pipe inner cavity guide plate is connected with the front end of the girder inner cavity guide plate arranged in the square girder cavity into a whole, the rear end of the girder inner cavity guide plate is connected with the left edge of the girder front air outlet arranged on the lower surface of the square girder, the top end of the girder inner cavity guide plate is embedded at the right side edge of the girder inner cavity air inlet, the lower end is embedded at the right edge of the girder front air outlet, and an independent and complete air flow channel I is formed between the right semicircular air inlet pipe of the air inlet pipe and the girder front air outlet and the girder; the upper end of the girder tail end inner cavity guide plate is arranged on the upper surface of the square girder inner cavity, the lower end of the girder tail end inner cavity guide plate is arranged at the left edge of the girder tail end exhaust port, one end of the girder tail end inner cavity guide auxiliary plate is arranged at the right edge of the girder tail end exhaust port, and the other end of the girder tail end inner cavity guide plate is arranged on the lower surface of the square girder inner cavity; in the square girder, an air inlet pipe inner cavity guide plate, a girder tail end inner cavity guide plate and a girder tail end inner cavity guide auxiliary plate form another independent and complete air flow channel II between the left half semicircular air inlet pipe of the air inlet pipe and the girder tail end exhaust port;
the air outlet pipeline device consists of a girder front exhaust pipe, a girder front exhaust pipe orifice flange, a girder tail end exhaust pipe orifice and a girder tail end exhaust pipe orifice flange, wherein the girder front exhaust pipe is arranged at the outer end of a girder front exhaust port; the girder tail end exhaust pipe is arranged at the outer end of the girder tail end exhaust port, the girder tail end exhaust pipe orifice is arranged at the top end of the girder tail end exhaust pipe, and the girder tail end exhaust pipe orifice flange is in butt joint with the air inlet at the left end of the air knife body, so that the air flow of the second air flow channel in the square girder is input into the left end of the air knife body.
The air inlet pipe is of an L-shaped structure and is composed of a transverse pipe and a vertical pipe, the end part of the transverse pipe is connected with an air inlet pipe joint, the end part of the vertical pipe is connected with an air inlet of the girder inner cavity, and the upper end of the air inlet pipe inner cavity guide plate is positioned in the vertical pipe.
The square girder is a rectangular cylinder.
The application method of the airflow split air knife girder of the equipment for producing the hot dip galvanized sheet comprises the following steps:
the air flow output by the fan enters an air inlet pipe and is divided into two equal-flow air flows through an inner cavity guide plate of the air inlet pipe; one air flow enters the first air flow channel and enters the right end of the air knife body through the front girder exhaust port, the front girder exhaust pipe and the right end air inlet of the air knife body; the other air flow enters the second air flow channel and enters the left end of the air knife body through the exhaust port at the tail end of the girder and the exhaust pipe at the tail end of the girder and the air inlet at the left end of the air knife body; the two air flows have equal flow and pressure and are stably ejected after being converged in the air knife body.
The square girder is an important part of the existing hot galvanized plate production equipment, the square girder is rectangular steel pipe specification, 200mm multiplied by 300mm rectangular steel pipes are generally selected according to the air knife specification, the girder length is generally 750mm to 2000mm unequal, and girder head blocking plates are arranged at two ends of the square girder to block the square girder into a closed cavity. The invention does not change the appearance structure of the square girder, and achieves the aim of the invention by improving the internal structure of the square girder. Is particularly suitable for the transformation of the existing hot galvanized sheet production equipment, reduces the cost, and is simple and easy to operate.
The invention realizes the special air inlet, special air delivery and special air delivery of the air knife girder after the front opening, can effectively ensure the normal air pressure and stable air flow of the air flow delivery and effectively improve the performance effect of the air knife.
The beneficial effects of the invention are as follows:
1. the air knife girder air inlet pipe inner guide plate overcomes the problems that the air flow prior art is full flowing in from one end of the girder in one cavity, and is sequentially and orderly discharged through the air outlets in multiple points after flowing in, the generated front air outlet air pressure is high, the rear air outlet air pressure is reduced, and the front air pressure and the rear air pressure are inconsistent. The air pressure stability is ensured by dividing channels, special flows and special outlets.
2. After the air knife girder is internally provided with the guide plate device, the air flow is split, dedicated in, dedicated out and dedicated in, the air flow resistance is reduced, the air flow is stable, and the problems that part of air flows into the girder from one end and then flows back to the air outlet at the middle part of the air knife girder after flowing into the tail end of the knife body in a cavity mode in the prior art are overcome, and the air flows to the air knife body and the air flows back are solved, so that the air flow is stable.
3. The air knife girder adopts two outflow openings to align with air inlets at two ends of the air knife body respectively for air flow transmission, so that the air flow of the air knife body is ensured to be more stable, the air pressure is consistent, and the overall performance of the air knife is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic top view of an embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection state of the air knife body and the knife body;
FIG. 4 is a schematic diagram of the internal structure of the invention in the state of being connected with the air knife body;
in the figure: square girder 1, girder head closure plate 2, girder air inlet 3, air inlet pipe joint 4, air inlet pipe 5, air inlet pipe inner cavity guide plate 6, girder inner cavity air inlet 7, girder inner cavity guide plate 8, girder tail end inner cavity guide plate 9, girder inner cavity guide auxiliary plate 10, girder tail end inner cavity guide auxiliary plate 11, girder front air outlet 12, girder front air outlet pipe 13, girder front air outlet pipe orifice 14, girder front air outlet pipe orifice flange 15, girder tail end air outlet 16, girder tail end air outlet pipe 17, girder tail end air outlet pipe orifice 18, girder tail end air outlet pipe orifice flange 19, air flow channel one 20, air flow channel two 21, air knife right end air inlet 22, air knife left end air inlet 23 and air knife 24.
Detailed Description
The invention is further illustrated by the following examples.
An airflow split supply type air knife girder of equipment for producing hot dip galvanized plates comprises a girder device, an air inlet pipe device, a guide plate device and an air outlet pipeline device;
the girder device comprises a square girder 1 and a girder head blocking plate 2, wherein the square girder is a square cylinder, two ends of the square girder 1 are respectively blocked by the girder head blocking plate 2, the upper surface of the right part of the square girder 1 is provided with a girder inner cavity air inlet 7, and the lower surfaces of the left part and the right part of the square girder 1 are respectively provided with a girder tail end air outlet 16 and a girder front air outlet 12;
the air inlet pipe device comprises a girder air inlet 3, an air inlet pipe connector 4 and an air inlet pipe 5, wherein the inner diameter of the air inlet pipe 5 is matched with the inner diameter of an air inlet 7 of a girder inner cavity, the top of the upper end of the air inlet pipe 5 is provided with the air inlet pipe connector 4, the girder air inlet 3 of the air inlet pipe connector 4 is externally connected with a fan air pipe to receive the air flow conveyed by a fan, and the lower end of the air inlet pipe is butted on the air inlet 7 of the girder inner cavity so that the air inlet pipe is communicated with the cavity of the square girder 1;
the guide plate device comprises an air inlet pipe inner cavity guide plate 6, a girder inner cavity guide plate 8, a girder tail end inner cavity guide plate 9, a girder inner cavity guide auxiliary plate 10 and a girder tail end inner cavity guide auxiliary plate 11, wherein the air inlet pipe inner cavity guide plate 6 is arranged in the girder inner cavity air inlet 7, the upper end of the air inlet pipe inner cavity guide plate 6 enters the air inlet pipe 5 to divide the air inlet pipe 5 into two channels, the lower end of the air inlet pipe inner cavity guide plate 6 enters the cavity of the square girder 1 and is connected with the girder inner cavity guide plate 8 arranged in the cavity of the square girder 1 into a whole, the cavity of the square girder 1 is divided into two equal air flow channels which are not communicated with each other, namely an equal air flow channel I20 and an equal air flow channel II 21, the equal air flow channel I20 is communicated with a girder front air outlet 12 on the lower surface of the square girder 1, and the equal air flow channel II 21 is communicated with a girder tail end air outlet 16 on the lower surface of the square girder 1; the upper part of the air inlet pipe inner cavity guide plate 6 is internally arranged at the lower end of the air inlet pipe 5, the width of the air inlet pipe inner cavity guide plate 6 is consistent with the inner diameter of the air inlet pipe 5, the air inlet pipe 5 is horizontally divided into a left semicircular air inlet pipe and a right semicircular air inlet pipe and extends to a girder inner cavity air inlet 7 on the square girder 1, so that the air flow accessed by the air inlet pipe is horizontally divided into a left equivalent air flow and a right equivalent air flow to the square girder inner cavity, the lower part of the air inlet pipe inner cavity guide plate 6 is connected with the front end of a girder inner cavity guide plate 8 arranged in the cavity of the square girder 1 into a whole, the rear end of the girder inner cavity guide plate 8 is connected with the left edge of a girder front air outlet 12 arranged on the lower surface of the square girder 1, the top end of the girder inner cavity guide plate 10 is embedded at the right edge of the girder inner cavity air inlet 7, the lower end is embedded at the right edge of the girder front air outlet 12 through the lower surface of the girder 1, and the left equivalent air flow is conveyed to the square girder inner cavity guide plate 6, the girder inner cavity guide plate 8 and the girder inner cavity guide plate 10 enable the air inlet pipe 5 and the girder front half air outlet 12 to form an independent air flow channel 20; the upper end of the girder tail end inner cavity guide plate 9 is arranged on the upper surface of the inner cavity of the square girder 1, the lower end of the girder tail end inner cavity guide plate is arranged at the left edge of the girder tail end exhaust port 16, one end of the girder tail end inner cavity guide auxiliary plate 11 is arranged at the right edge of the girder tail end exhaust port 16, and the other end of the girder tail end inner cavity guide plate is arranged on the lower surface of the inner cavity of the square girder 1; in the square girder 1, an air inlet pipe inner cavity guide plate 6, a girder inner cavity guide plate 8, a girder tail end inner cavity guide plate 9 and a girder tail end inner cavity guide auxiliary plate 11 form another independent and complete air flow channel II 21 between a left half semicircular air inlet pipe of the air inlet pipe 5 and a girder tail end air outlet 16;
the air outlet pipeline device consists of a girder front exhaust pipe 13, a girder front exhaust pipe orifice 14, a girder front exhaust pipe orifice flange 15, a girder tail end exhaust pipe 17, a girder tail end exhaust pipe orifice 18 and a girder tail end exhaust pipe orifice flange 19, wherein the girder front exhaust pipe 13 is arranged at the outer end of the girder front exhaust port 12, the girder front exhaust pipe orifice 14 is arranged at the top end of the girder front exhaust pipe 13, and is in butt joint with an air inlet 22 at the right end of an air knife body through the girder front exhaust pipe orifice flange 15, so that air flow of an air flow channel one 20 in a square girder is input into the right end of the air knife body 24; the girder tail end exhaust pipe 17 is arranged at the outer end of the girder tail end exhaust port 16, a girder tail end exhaust pipe orifice 18 is arranged at the top end of the girder tail end exhaust pipe 17, and is in butt joint with an air inlet 23 at the left end of the air knife body through a girder tail end exhaust pipe orifice flange 19, so that the air flow of the second air flow channel 21 in the square girder is input into the left end of the air knife body 24.
The air inlet pipe 5 is of an L-shaped structure and is composed of a transverse pipe and a vertical pipe, the end part of the transverse pipe is connected with the air inlet pipe joint 4, the end part of the vertical pipe is connected with the air inlet 7 of the girder inner cavity, and the upper end of the air inlet pipe inner cavity guide plate 6 is positioned in the vertical pipe.
The square girder is a rectangular cylinder.
In the embodiment, the length of the square girder 1 is set according to the production width specification of the zinc plate, and is generally between 750mm and 2000mm, and two ends of the square girder 1 are respectively blocked by a girder head blocking plate 2.
The air inlet 7 of the girder inner cavity is opened on the upper surface of the square girder with the distance of 300mm from the right end of the square girder to the girder head, and the diameter is smaller than the width of the square girder by 5mm. The inner diameter of the air inlet pipe 5 is equivalent to that of the girder inner cavity air inlet 7, the upper end top is provided with the girder air inlet 3 and an air inlet pipe joint 4, and is externally connected with a fan air pipe to receive the air flow conveyed by the fan. The lower end of the air inlet pipe is butted above the air inlet 7 of the girder inner cavity, so that the air inlet pipe is communicated with the square big Liang Qiangti, the lower half end of the air inlet pipe 5 is internally provided with the air inlet pipe inner cavity guide plate 6, the length of the air inlet pipe is shorter than about fifty percent of the lower end of the air inlet pipe 5, the width of the air inlet pipe is consistent with the inner diameter of the air inlet pipe 5, the air inlet pipe 5 is embedded in the middle of the lower end of the air inlet pipe 5 in a forward direction, the air inlet pipe 5 is divided into two semicircular air inlet pipes in a flat mode, the two semicircular air inlet pipes extend to the air inlet 7 of the girder inner cavity, and the air flow accessed by the air inlet pipe is divided into two equal air flows in a flat mode so far and is conveyed to the square girder inner cavity.
The girder inner cavity guide plate 8 is an S-shaped steel plate, the width of the girder inner cavity guide plate is consistent with that of the square girder 1, the length of the girder inner cavity guide plate is set according to design requirements, the top end of the girder inner cavity guide plate is connected with the lower end of the air inlet pipe inner cavity guide plate 6 in the middle of the girder inner cavity air inlet 7, the lower end of the girder inner cavity guide plate is connected with the left edge of the girder front air outlet 12, and the diameter opening of the girder front air outlet 12 is generally smaller than 10mm of the width of the square girder inner cavity and is arranged at the lower surface of the square girder. The girder inner cavity flow guide auxiliary plate 10 is an arc-shaped steel plate, the length is set according to design requirements, the width is consistent with the width of the square girder inner cavity, the top end of the girder inner cavity flow guide auxiliary plate is inlaid at the right edge of the girder inner cavity air inlet 7, and the lower end of the girder inner cavity flow guide auxiliary plate is inlaid at the right edge of the girder front air outlet 12 through the extension of the lower surface of the girder 1. After the girder inner cavity guide plate 8 and the girder inner cavity guide auxiliary plate 10 are installed, the girder inner cavity guide plate 8 and the girder inner cavity guide auxiliary plate are correspondingly connected with the lower ends of the air inlet pipe 5 and the air inlet pipe inner cavity guide plate 6, so that an air inlet channel at the right half part of the air inlet pipe 5 is connected through the girder front exhaust port 12 to form an independent complete air flow channel I20, and the special air flow channel conveying is realized.
The girder tail end inner cavity guide plate 9 is an arc-shaped steel plate, the width is consistent with the width of the girder inner cavity, the length is determined according to design requirements, the upper end of the girder tail end inner cavity guide plate is arranged above the corresponding position of the girder tail end exhaust port 16, the lower end of the girder tail end inner cavity guide plate is arranged at the left edge of the girder tail end exhaust port 16, and the diameter of the girder tail end exhaust port 16 is smaller than 5mm of the width of the square girder inner cavity. The beam tail end inner cavity flow guide auxiliary plate 11 is an arc-shaped steel plate, the width is consistent with the width of the beam inner cavity, the length is determined according to design requirements, the front end of the beam tail end flow guide auxiliary plate is arranged at the right edge of the beam tail end exhaust port, and the rear part of the beam tail end exhaust port is buckled on the inner side of the lower inner wall of the square beam 1. After the girder tail end inner cavity guide plate 9 and the girder tail end inner cavity guide auxiliary plate 11 are installed, the girder inner cavity is formed from the left semicircular air inlet of the girder air inlet 3 to the girder tail end air outlet 16 from the middle end cavity of the square girder 1 to form a girder inner cavity, and a second complete airflow transmission channel 21 is formed.
The girder front exhaust pipe 13 is arranged at the outer end of the girder front exhaust port 12, a girder front exhaust pipe orifice 14 is arranged at the top end of the girder front exhaust pipe 13, and is in butt joint with an air inlet 22 at the right end of the air knife body through a girder front exhaust pipe orifice flange 15, so that air flow of an air flow channel one 20 in the square girder is input into the right end of the air knife body 24; the girder tail end exhaust pipe 17 is arranged at the outer end of the girder tail end exhaust port 16, a girder tail end exhaust pipe orifice 18 is arranged at the top end of the girder tail end exhaust pipe 17, and is in butt joint with an air inlet 23 at the left end of the air knife body through a girder tail end exhaust pipe orifice flange 19, so that the air flow of the second air flow channel 21 in the square girder is input into the left end of the air knife body 24.
The application method of the airflow split air knife girder of the equipment for producing the hot dip galvanized sheet comprises the following steps:
the air flow output by the fan enters an air inlet pipe 5 and is divided into two equal-flow air flows through an air inlet pipe inner cavity guide plate 6; one air flow enters the first air flow channel 20 and enters the right end of the air knife body 24 through the girder front air outlet 12, the girder front air outlet pipe 13 and the air knife body right end air inlet 22; the other air flow enters the second air flow channel 21 and enters the left end of the air knife body 24 through the girder tail end air outlet 16, the girder tail end exhaust pipe 17 and the air knife body left end air inlet 23; the two air flows have equal flow rates and equal pressure and are stably ejected after being converged in the air knife body 24.
Claims (4)
1. The utility model provides a hot dip galvanized sheet production is with equipment air current branch supply formula air knife girder which characterized in that: the device consists of a girder device, an air inlet pipe device, a guide plate device and an air outlet pipeline device;
the girder device comprises a square girder (1) and a girder head blocking plate (2), wherein the square girder is a square cylinder, two ends of the square girder (1) are respectively blocked by the girder head blocking plate (2), a girder inner cavity air inlet (7) is formed in the upper surface of the right part of the square girder (1), and girder tail end air outlets (16) and girder front air outlets (12) are respectively formed in the lower surfaces of the left part and the right part of the square girder (1);
the air inlet pipe device comprises a girder air inlet (3), an air inlet pipe joint (4) and an air inlet pipe (5), wherein the inner diameter of the air inlet pipe (5) is matched with the inner diameter of an air inlet (7) of the girder inner cavity, the air inlet pipe joint (4) is arranged at the top of the upper end of the air inlet pipe (5), the girder air inlet (3) of the air inlet pipe joint (4) is externally connected with a fan air pipe to receive the air flow conveyed by the fan, and the lower end of the air inlet pipe is butted on the air inlet (7) of the girder inner cavity so that the air inlet pipe is communicated with the cavity of the square girder (1);
the guide plate device comprises an air inlet pipe inner cavity guide plate (6), a girder inner cavity guide plate (8), a girder tail end inner cavity guide plate (9), a girder inner cavity guide auxiliary plate (10) and a girder tail end inner cavity guide auxiliary plate (11), wherein the air inlet pipe inner cavity guide plate (6) is arranged in a girder inner cavity air inlet (7), the upper end of the air inlet pipe inner cavity guide plate (6) enters an air inlet pipe (5), the air inlet pipe (5) is divided into two channels, the lower end of the air inlet pipe inner cavity guide plate (6) enters a cavity of the square girder (1), the air inlet pipe inner cavity guide plate (8) is connected with the girder inner cavity guide plate (8) arranged in the cavity of the square girder (1) into a whole, the cavity of the square girder (1) is divided into two equal air flow channels which are not communicated with each other, namely an equal air flow channel I (20) and an equal air flow channel II (21), and the equal air flow channel I is communicated with a girder front air outlet (12) on the lower surface of the square girder (1), and the equal air flow channel II is communicated with a girder tail end air outlet (16) on the lower surface of the square girder (1); the upper part of the air inlet pipe inner cavity guide plate (6) is internally arranged at the lower end of the air inlet pipe (5), the width of the air inlet pipe inner cavity guide plate (6) is consistent with the inner diameter of the air inlet pipe (5), the air inlet pipe (5) is equally divided into a left semicircular air inlet pipe and a right semicircular air inlet pipe, the left semicircular air inlet pipe and the right semicircular air inlet pipe are extended to the position of an air inlet (7) of the girder inner cavity on the square girder (1), the air flow accessed by the air inlet pipe is equally divided into a left air flow and a right air flow, and flows to the square girder inner cavity, the lower part of the air inlet pipe inner cavity guide plate (6) is connected with the front end of a girder inner cavity guide plate (8) arranged in the cavity of the square girder (1) into a whole, the rear end of the girder inner cavity guide plate (8) is connected with the left edge of a girder front air outlet (12) of the lower surface of the square girder, the top end of the girder inner cavity guide auxiliary plate (10) is embedded at the right edge of the air inlet (7) of the girder inner cavity, the lower end extends to the right edge of the girder front air outlet (12) of the girder (1), and the air inlet pipe inner cavity guide plate (6) and the air inlet pipe inner cavity guide plate (20) forms a complete air inlet pipe inner cavity (20); the upper end of the girder tail end inner cavity guide plate (9) is arranged on the upper surface of the inner cavity of the square girder (1), the lower end of the girder tail end inner cavity guide plate is arranged at the left edge of the girder tail end exhaust port (16), one end of the girder tail end inner cavity guide auxiliary plate (11) is arranged at the right edge of the girder tail end exhaust port (16), and the other end of the girder tail end inner cavity guide plate is arranged on the lower surface of the inner cavity of the square girder (1); in the square girder (1), an air inlet pipe inner cavity guide plate (6), a girder inner cavity guide plate (8), a girder tail end inner cavity guide plate (9) and a girder tail end inner cavity guide auxiliary plate (11) enable another independent and complete air flow channel II (21) to be formed between a left half semicircular air inlet pipe of the air inlet pipe (5) and a girder tail end air outlet (16);
the air outlet pipeline device consists of a girder front exhaust pipe (13), a girder front exhaust pipe orifice (14), a girder front exhaust pipe orifice flange (15) and a girder tail end exhaust pipe (17), a girder tail end exhaust pipe orifice (18) and a girder tail end exhaust pipe orifice flange (19), wherein the girder front exhaust pipe (13) is arranged at the outer end of the girder front exhaust port (12), the girder front exhaust pipe orifice (14) is arranged at the top end of the girder front exhaust pipe (13), and is in butt joint with an air inlet (22) at the right end of an air knife body through the girder front exhaust pipe orifice flange (15), so that air flow of an air flow channel I (20) in a square girder is input into the right end of the air knife body (24); the girder tail end exhaust pipe (17) is arranged at the outer end of the girder tail end exhaust port (16), a girder tail end exhaust pipe orifice (18) is arranged at the top end of the girder tail end exhaust pipe (17), and the girder tail end exhaust pipe orifice flange (19) is in butt joint with an air inlet (23) at the left end of the air knife body so as to input the air flow of the air flow channel II (21) in the square girder into the left end of the air knife body (24).
2. The equipment air flow split air knife girder for hot dip galvanized sheet production according to claim 1, characterized in that: the air inlet pipe (5) is of an L-shaped structure and is composed of a transverse pipe and a vertical pipe, the end part of the transverse pipe is connected with the air inlet pipe joint (4), the end part of the vertical pipe is connected with the air inlet (7) of the girder inner cavity, and the upper end of the air inlet pipe inner cavity guide plate (6) is positioned in the vertical pipe.
3. The equipment air flow split air knife girder for hot dip galvanized sheet production according to claim 1 or 2, characterized in that: the square girder is a rectangular cylinder.
4. A method for using an air flow split type air knife girder of equipment for producing hot dip galvanized plates, which adopts the air knife girder defined in any one of claims 1 to 3, and is characterized by comprising the following steps:
the air flow output by the fan enters an air inlet pipe (5) and is divided into two equal-flow air flows through an air inlet pipe inner cavity guide plate (6); one air flow enters the first air flow channel (20) and enters the right end of the air knife body (24) through the girder front air outlet (12), the girder front air outlet pipe (13) and the air knife body right air inlet (22); the other air flow enters the second air flow channel (21) and enters the left end of the air knife body (24) through the girder tail end exhaust port (16), the girder tail end exhaust pipe (17) and the air knife body left end air inlet (23); the two air flows have equal flow and pressure and are stably ejected after being converged in the air knife body (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010533101.0A CN111455300B (en) | 2020-06-12 | 2020-06-12 | Equipment airflow split supply type air knife girder for hot dip galvanized sheet production and use method |
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| CN202010533101.0A CN111455300B (en) | 2020-06-12 | 2020-06-12 | Equipment airflow split supply type air knife girder for hot dip galvanized sheet production and use method |
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| CN111962000B (en) * | 2020-08-19 | 2022-05-24 | 唐山市佳冠实业有限公司 | Air knife body for air flow adjustable hot-dip galvanized plate production and use method |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3670695A (en) * | 1971-02-23 | 1972-06-20 | United States Steel Corp | Apparatus for controlling weight and distribution of a coating |
| US4041895A (en) * | 1975-09-29 | 1977-08-16 | Republic Steel Corporation | Coating thickness and distribution control |
| US4346129A (en) * | 1981-03-02 | 1982-08-24 | Republic Steel Corporation | Method and apparatus for thickness control of a coating |
| KR930000188Y1 (en) * | 1990-12-29 | 1993-01-18 | 포항종합제철주식회사 | Air knife device of continuous zinc plating system |
| KR19990005731U (en) * | 1997-07-19 | 1999-02-18 | 김종진 | Air knife |
| CN2652947Y (en) * | 2003-08-27 | 2004-11-03 | 黄石山力涂镀层工程技术有限公司 | Airblade device for strip steel continuous heat dipping coating line |
| JP2006274381A (en) * | 2005-03-30 | 2006-10-12 | Nippon Steel Corp | Gas wiping nozzle and gas wiping device |
| CN204162771U (en) * | 2014-11-14 | 2015-02-18 | 魏守军 | A kind of heat zinc coating plate production air knife |
| CN205903791U (en) * | 2016-07-16 | 2017-01-25 | 江苏民生重工有限公司 | Calcium base wet desulphurization tower |
| CN205954091U (en) * | 2016-08-30 | 2017-02-15 | 天津耐瑞德科技有限公司 | Tolerance adjusting device of air knife |
| CN206033846U (en) * | 2016-08-27 | 2017-03-22 | 杭州新永丰钢业有限公司 | Automatic adjusting device in air knife knife lip clearance |
| CN206033848U (en) * | 2016-08-31 | 2017-03-22 | 天津耐瑞德科技有限公司 | Air knife frame of hot -galvanize air knife |
| CN206204398U (en) * | 2016-08-31 | 2017-05-31 | 天津耐瑞德科技有限公司 | A kind of galvanizing air knife with protective plate |
| CN207537515U (en) * | 2017-12-08 | 2018-06-26 | 江苏瑞昕金属制品科技有限公司 | Air knife micro-adjusting mechanism |
| CN108441802A (en) * | 2018-05-30 | 2018-08-24 | 重庆万达薄板有限公司 | A kind of strip hot-dip galvanizing production air knife |
| CN110899012A (en) * | 2019-12-12 | 2020-03-24 | 中冶京诚工程技术有限公司 | Powder spray gun |
| CN111962000A (en) * | 2020-08-19 | 2020-11-20 | 唐山市佳冠实业有限公司 | Air knife body for air flow adjustable hot-dip galvanized plate production and use method |
| CN212247171U (en) * | 2020-06-12 | 2020-12-29 | 唐山市佳冠实业有限公司 | Air flow distribution type air knife crossbeam of equipment for producing hot-dip galvanized plates |
-
2020
- 2020-06-12 CN CN202010533101.0A patent/CN111455300B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3670695A (en) * | 1971-02-23 | 1972-06-20 | United States Steel Corp | Apparatus for controlling weight and distribution of a coating |
| US4041895A (en) * | 1975-09-29 | 1977-08-16 | Republic Steel Corporation | Coating thickness and distribution control |
| US4346129A (en) * | 1981-03-02 | 1982-08-24 | Republic Steel Corporation | Method and apparatus for thickness control of a coating |
| KR930000188Y1 (en) * | 1990-12-29 | 1993-01-18 | 포항종합제철주식회사 | Air knife device of continuous zinc plating system |
| KR19990005731U (en) * | 1997-07-19 | 1999-02-18 | 김종진 | Air knife |
| CN2652947Y (en) * | 2003-08-27 | 2004-11-03 | 黄石山力涂镀层工程技术有限公司 | Airblade device for strip steel continuous heat dipping coating line |
| JP2006274381A (en) * | 2005-03-30 | 2006-10-12 | Nippon Steel Corp | Gas wiping nozzle and gas wiping device |
| CN204162771U (en) * | 2014-11-14 | 2015-02-18 | 魏守军 | A kind of heat zinc coating plate production air knife |
| CN205903791U (en) * | 2016-07-16 | 2017-01-25 | 江苏民生重工有限公司 | Calcium base wet desulphurization tower |
| CN206033846U (en) * | 2016-08-27 | 2017-03-22 | 杭州新永丰钢业有限公司 | Automatic adjusting device in air knife knife lip clearance |
| CN205954091U (en) * | 2016-08-30 | 2017-02-15 | 天津耐瑞德科技有限公司 | Tolerance adjusting device of air knife |
| CN206033848U (en) * | 2016-08-31 | 2017-03-22 | 天津耐瑞德科技有限公司 | Air knife frame of hot -galvanize air knife |
| CN206204398U (en) * | 2016-08-31 | 2017-05-31 | 天津耐瑞德科技有限公司 | A kind of galvanizing air knife with protective plate |
| CN207537515U (en) * | 2017-12-08 | 2018-06-26 | 江苏瑞昕金属制品科技有限公司 | Air knife micro-adjusting mechanism |
| CN108441802A (en) * | 2018-05-30 | 2018-08-24 | 重庆万达薄板有限公司 | A kind of strip hot-dip galvanizing production air knife |
| CN110899012A (en) * | 2019-12-12 | 2020-03-24 | 中冶京诚工程技术有限公司 | Powder spray gun |
| CN212247171U (en) * | 2020-06-12 | 2020-12-29 | 唐山市佳冠实业有限公司 | Air flow distribution type air knife crossbeam of equipment for producing hot-dip galvanized plates |
| CN111962000A (en) * | 2020-08-19 | 2020-11-20 | 唐山市佳冠实业有限公司 | Air knife body for air flow adjustable hot-dip galvanized plate production and use method |
Non-Patent Citations (2)
| Title |
|---|
| 热基镀锌线中FOEN气刀挡板装置的改进;赵卫红;马骏;赵朋举;;河北冶金;20160228(第02期);全文 * |
| 现场总线技术在镀锌线气刀控制系统中的应用;丁钢;李明河;张千峰;;安徽工业大学学报(自然科学版);20100115(第01期);全文 * |
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