CN113063192B - Humidifying device and humidifying method - Google Patents
Humidifying device and humidifying method Download PDFInfo
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- CN113063192B CN113063192B CN202110366288.4A CN202110366288A CN113063192B CN 113063192 B CN113063192 B CN 113063192B CN 202110366288 A CN202110366288 A CN 202110366288A CN 113063192 B CN113063192 B CN 113063192B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
- F24F6/10—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements heated electrically
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a humidifying device and a humidifying method, relates to the technical field of hot galvanizing, and solves the technical problem that the surface quality of steel is seriously influenced due to the fact that a large amount of water vapor is injected into a furnace nose when the production of common steel is switched in the prior art. The humidifying device comprises a gas supply end, a gas outlet and a gas inlet pipe, wherein the gas supply end is used for supplying dry gas; a humidifying tank filled with liquid for humidifying and drying gas; and, humidifying the air bag; the air supply end is communicated with the humidifying air bag through a first pipeline, the air supply end is communicated with the humidifying tank through a second pipeline, the second pipeline penetrates into liquid deeply, and the humidifying tank is communicated with the humidifying air bag through a third pipeline. According to the humidifying device provided by the invention, when high-strength steel is produced, the second pipeline is completely closed, so that dry gas enters the humidifying gas bag and takes away the humidifying gas in the humidifying gas bag. When switching to the production of ordinary steel, the first pipeline is completely closed, the second pipeline is opened, and the dry gas passes through the humidifying tank to form the humidified gas so as to inhibit the zinc ash.
Description
Technical Field
The invention relates to the technical field of hot galvanizing, in particular to a humidifying device and a humidifying method.
Background
In a galvanizing production line for steel manufacturing, a plurality of strip steels are produced in a crossed manner. Such as: when producing common steel, a humidifying device is required to be started for inhibiting zinc ash; the humidifying device needs to be closed when the high-strength steel is produced.
However, in the conventional humidifying device or system, when the humidifying device or system is closed during the production of high-strength steel, the humidified gas in the pipeline is condensed in the humidified gas bag. When the production of common steel is switched, the humidifying device or the humidifying system needs to be opened again, at the moment, the humidifying gas from the humidifying device or the humidifying system is mixed with the condensed humidifying gas, a large amount of water vapor can be injected into the furnace nose within a certain period of time, and the surface quality of the strip steel is seriously influenced.
Disclosure of Invention
In view of the above, the present invention is directed to overcome the disadvantages of the prior art, and in a first aspect, a humidifying device is provided to solve the technical problem in the prior art that a large amount of moisture is injected into a furnace nose when a plurality of different steels are switched to be produced, which may seriously affect the surface quality of the steel.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a humidifying device comprising:
the gas supply end is used for supplying drying gas;
a humidification tank containing a liquid for humidifying the dry gas; and the number of the first and second groups,
humidifying the air bag;
the air supply end is communicated with the humidifying air bag through a first pipeline, the air supply end is communicated with the humidifying tank through a second pipeline, the second pipeline extends deep into the liquid, and the humidifying tank is communicated with the humidifying air bag through a third pipeline.
Optionally, the air feed end is connected with the three-way valve, the air feed end pass through the three-way valve respectively with first pipeline with the second pipeline intercommunication.
Optionally, the second pipeline has hose portion and hard tube portion, the hose portion with hard tube portion intercommunication, floater has been placed in the humidification jar, hard tube portion with floater rigid coupling.
Optionally, the floater is slidably connected with a guide rod, and the guide rod is fixedly connected with the humidifying tank.
Optionally, the lateral wall of the humidification tank is connected with a liquid level detection device, and the liquid level detection device is communicated with the humidification tank.
Optionally, the lateral wall of humidification jar is connected with the level gauge, the level gauge with humidification jar intercommunication.
Optionally, an electric heating device is connected to a side wall of the humidification tank, and a heating portion of the electric heating device is placed in the liquid.
Optionally, the bottom of the humidifying tank is connected with a water inlet valve and a drain valve.
Optionally, the humidification tank is communicated with a water storage tank through a fourth pipeline, the water storage tank is provided with an overflow port, and the overflow port is lower than the highest position which can be reached by the liquid in the humidification tank.
In a second aspect, there is provided a humidifying method using the humidifying device described above, including the steps of:
when the common steel is produced, the first pipeline is closed, the second pipeline is opened, the dry gas passes through the humidifying tank to be humidified to form humidified gas, and the humidified gas enters the humidified gas bag through the third pipeline to produce the common steel;
when the high-strength steel is produced, the first pipeline is opened, the second pipeline is closed, the dry gas passes through the first pipeline and enters the humidifying gas bag to be emptied, residual humidifying gas in the humidifying gas bag is exhausted, and the high-strength steel is produced and provided with the dry gas.
Compared with the prior art, the humidifying device provided by the invention has the beneficial effects that:
according to the invention, the air supply end is respectively connected with the humidifying air bag and the humidifying tank at the same time, and when high-strength steel is produced, the second pipeline is completely closed, so that dry air enters the humidifying air bag, and water vapor in the humidifying air bag is completely taken away. When switching to the production ordinary steel, the first pipeline is closed completely, the second pipeline is opened, at the moment, the dry gas at the gas supply end is humidified by the humidifying tank to form the humidified gas, and the humidified gas enters the humidified gas bag through the third pipeline to inhibit the zinc ash. Therefore, the invention effectively solves the technical problem that the surface quality of the strip steel is seriously influenced because a large amount of water vapor is injected into the furnace nose when the production is switched to the production of common steel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a structural view of a humidifying device of the present invention;
fig. 2 is a flow chart of the humidification method of the present invention.
In the figure:
100-a gas supply end, 110-a three-way valve, 1110-a first pipeline, 1120-a one-way valve, 120-a second pipeline, 1210-a hose part, 1220-a hard pipe part, 130-a third pipeline, 200-a humidifying tank, 210-a first liquid level detection device, 220-a second liquid level detection device, 230-a floater, 240-a guide rod, 250-a water inlet valve, 260-a blowdown valve, 270-a liquid level meter, 280-a fourth pipeline, 290-an electric heating device, 300-a water storage tank, 310-a water discharge valve and 400-a humidifying air bag.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only a few embodiments of the present invention, and are not comprehensive embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
On a galvanizing production line, zinc ash is generated when common steel is produced, so that a humidifying device is needed for humidifying to inhibit the zinc ash and avoid the defect of zinc ash and zinc slag.
However, the existing humidifying device or humidifying system cannot meet the requirement. The inventor researches and finds that the following problems mainly exist:
on the one hand, when producing high-strength steel, the humidifying device or the humidifying system needs to be closed, but moisture remaining in the humidifying air pocket is condensed in the humidifying air pocket. When the humidifying system or the humidifying device is turned on again in the production of common steel, the humidifying device or the humidifying system provides the newly provided humidifying gas to be mixed with the remaining humidifying gas in the humidifying gas bag, so that a large amount of humidifying gas enters the furnace nose within a certain period of time, and the surface quality of the strip steel is seriously influenced.
On the other hand, when the liquid level in the humidification tank is reduced, the humidification tank can automatically replenish water in the existing humidification device, and it can be understood that the pressure intensity of the same point is larger along with the increase of the liquid level, so that the gas which needs to enter the humidification tank for humidification in the existing humidification device is generated, and the flow of the gas entering the humidification tank is reduced or even zero due to the overlarge pressure intensity. Therefore, the humidifying device cannot play a humidifying role, and cannot inhibit zinc ash to cause the defect of zinc ash and zinc slag.
In order to solve the above problems, the inventor has developed a humidifying device and a humidifying method, and the general idea is as follows:
on one hand, when the humidifying air bag is switched to the common steel production, the humidifying air bag is ensured not to have condensed humidifying air in advance; on the other hand, when the automatic water replenishing of the humidifying tank is ensured, the pressure intensity is not increased due to the rise of the liquid level of the humidifying tank, and the gas flow entering the humidifying tank for humidifying the gas supply end is not influenced.
In order to understand the technical scheme of the inventor, the following embodiments are further described.
Example 1:
the present invention provides a humidifying device, as shown in fig. 1, comprising a gas supply end 100, wherein the gas supply end 100 is connected with a first pipeline 1110 and a second pipeline 120 by a connection manner including but not limited to a three-way valve 110, for example, the gas supply end 100 can also be connected with the first pipeline 1110 and the second pipeline 120 respectively, and only an on-off valve needs to be connected on the first pipeline 1110 and the second pipeline 120. The gas supply end 100 is used for supplying dry gas to the first pipeline 1110 and the second pipeline 120, the dry gas includes but is not limited to nitrogen gas, and may also be a nitrogen-hydrogen mixed gas, and the embodiment uses the nitrogen-hydrogen mixed gas because hydrogen in the nitrogen-hydrogen mixed gas can enhance the reducibility during steel production, and provide steel product quality.
As shown in fig. 1, the gas supply end 100 is connected to the humidifying air bag 400 via a first pipe 1110, and it can be understood that after the drying gas flowing out from the gas supply end 100 passes through the humidifying air bag 400 via the first pipe 1110, the drying gas can carry away other gases in the humidifying air bag 400, such as residual humidifying gas. The first pipe 1110 is provided with a check valve, and the dry gas passing through the first pipe 1110 can be prevented from flowing back by the check valve 1120.
As shown in fig. 1, the second pipe 120 is disposed in the humidification tank 200 through the top end surface of the humidification tank 200, and the humidification tank 200 has a cylindrical shape. The humidification tank 200 contains a liquid for humidifying the dry gas, mainly water, so that the dry gas becomes humidified gas. The portion of the second pipe 120 in the humidification tank 200 is divided into a hose part 1210 and a hard pipe part 1220. Wherein, the joint of the upper end of the hard pipe part 1220 and the hose part 1210 is fixedly connected to the floater 230, and the floater 230 floats on the liquid. Through the floater 230 that sets up for when humidification jar 200 was automatic mended water, floater 230 was automatic to rise, drives hard tube portion 1220 simultaneously and rises, makes the degree of depth that hard tube portion 1220 deepened in the aquatic remain unchanged, and it is unchangeable to guarantee that the pressure that hard tube portion 1220 gas outlet received is unchangeable, with the gas flow who does not influence hard tube portion 1220 gas outlet. Further, the pressure increase after the automatic water replenishing of the humidifying tank 200 in the prior art is avoided, so that the gas flow entering the humidifying tank 200 is reduced and even zero. Therefore, the humidifying device cannot play a humidifying role, and cannot inhibit zinc ash to cause the defect of zinc ash and zinc slag.
As shown in fig. 1, the center of the float 230 is slidably connected with a guide rod 240, and the lower end of the guide rod 240 is fixedly connected to the bottom of the humidification tank 200, it can be understood that, by the arrangement of the guide rod 240, when the float 230 changes with the liquid level change in the humidification tank 200, the float 230 only moves up and down, thereby preventing the hard pipe portion 1220 from shaking to cause the gas flow at the gas outlet of the hard pipe portion 1220 to fluctuate, which affects the formation of humidified gas, and finally affects the effect of suppressing zinc ash.
As shown in fig. 1, two liquid level detection devices, i.e., a first liquid level detection device 210 and a second liquid level detection device 220, are provided at an interval in the height direction of the side wall of the humidification tank 200, and of course, both the first liquid level detection device 210 and the second liquid level detection device 220 communicate with the humidification tank 200. When the liquid level in the humidification tank 200 is lowered to the position of the second liquid level detection device 220, the second liquid level detection device 220 sends a signal, and the humidification tank 200 automatically replenishes water; after the humidification tank 200 is automatically replenished with water, when the liquid level reaches the first night level detection device, the first liquid level detection device 210 sends a signal to control the humidification tank 200 to stop automatic water replenishment.
As shown in fig. 1, a liquid level meter 270 is further disposed on the side wall of the humidification tank 200, the liquid level meter 270 is communicated with the humidification tank 200, the lower end of the liquid level meter 270 is connected to the humidification tank 200 at a position lower than the second liquid level detection device 220, and the upper end of the liquid level meter 270 is connected to the humidification tank 200 at a position higher than the first liquid level detection device 210. Through the level gauge 270 who sets up, can be more audio-visual the liquid level in the observation humidification jar 200, avoid first liquid level detection device 210 and second liquid level detection device 220 to damage the problem of the unable accurate liquid level of observing in the humidification jar 200 in back.
As shown in fig. 1, an electric heating device 290 is further disposed on the side wall of the humidification tank 200, a heating portion of the electric heating device 290 is disposed inside the humidification tank 200 and contacts with water, and the electric heating device 290 is disposed to prevent water in the humidification tank 200 from freezing to affect the humidification effect when the temperature is low. Meanwhile, the water in the humidification tank 200 is heated by the electric heating device 290, so that the humidification effect of the dry gas is better.
As shown in fig. 1, the bottom of the humidification tank 200 is communicated with a water inlet valve 250 and a blowdown valve 260, the water inlet valve 250 is used for supplying water to the humidification tank 200, and the blowdown valve 260 is used for facilitating blowdown during maintenance and cleaning of the humidification tank 200.
As shown in fig. 1, the top of the humidification tank 200 is connected to a third pipeline 130, and the humidified gas formed by humidifying the dry gas in the humidification tank 200 enters the humidification gas bag 400 through the third pipeline 130. The one-way valve 1120 is arranged on the third pipeline 130, and the one-way valve 1120 can prevent the humidified gas in the third pipeline 130 from flowing back to the humidification tank 200, so that the humidified gas entering the humidification gas bag 400 fluctuates, and the effect of inhibiting the zinc ash is finally affected.
As shown in fig. 1, the humidification tank 200 is communicated with the water storage tank 300 through the fourth pipeline 280, and the water storage tank 300 is arranged, which is equivalent to increase the water storage capacity of the humidification tank 200, prolong the humidification time, and avoid frequent automatic water replenishment of the humidification tank 200. Meanwhile, the overflow port is formed in the water storage tank 300 and is lower than the highest position where liquid in the humidification tank 200 can reach, and the overflow port is arranged, so that the humidification tank 200 can be prevented from being automatically supplemented with water to cause water to be supplemented all the time, water enters the third pipeline 130 to enter the humidification air bag 400, strip steel production is affected, and accidents occur. Meanwhile, a drain valve 310 is provided at the bottom of the water storage tank 300 for draining water.
Example 2:
the invention provides a humidifying method, as shown in fig. 1 and fig. 2, comprising the humidifying device provided in embodiment 1, when producing ordinary steel, the first pipeline 1110 is closed, the second pipeline 120 is opened, the dry gas is humidified by the humidifying tank 200 to form the humidified gas, the humidified gas enters the humidified gas bag 400 through the third pipeline 130, and then enters the furnace nose to meet the production requirement of the ordinary steel; when high-strength steel is produced, the first pipeline 1110 is opened, the second pipeline 120 is closed, the dry gas enters the humidifying gas bag 400 through the first pipeline 1110 to exhaust the residual humidifying gas in the humidifying gas bag 400, and the dry gas enters the furnace nose through the humidifying gas bag 400 to provide the dry gas for the high-strength steel production.
It can be understood that, in the humidifying method, as the residual humidifying gas in the humidifying gas bag 400 is exhausted when the high-strength steel is produced, the technical problem that the surface quality of the strip steel is seriously influenced because a large amount of water gas is injected into the furnace nose when the high-strength steel is switched to the common steel production is solved; meanwhile, when the high-strength steel is produced, the dry gas can be continuously provided, the production condition of the high-strength steel is enhanced, namely the provided hydrogen can enhance the reducibility during the production of the high-strength steel, and the production quality is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (7)
1. A humidifying device, comprising:
a gas supply end (100), the gas supply end (100) being used for providing a drying gas;
a humidification tank (200), the humidification tank (200) being filled with a liquid for humidifying the dry gas; and the number of the first and second groups,
a humidifying air bag (400);
wherein the gas supply end (100) is communicated with the humidifying gas bag (400) through a first pipeline (1110), the gas supply end (100) is communicated with the humidifying tank (200) through a second pipeline (120), the second pipeline (120) extends into the liquid, and the humidifying tank (200) is communicated with the humidifying gas bag (400) through a third pipeline (130);
the gas supply end (100) is connected with a three-way valve (110), and the gas supply end (100) is respectively communicated with the first pipeline (1110) and the second pipeline (120) through the three-way valve (110);
the second pipeline (120) is provided with a hose part (1210) and a hard pipe part (1220), the hose part (1210) is communicated with the hard pipe part (1220), a floater (230) is placed in the humidifying tank (200), and the hard pipe part (1220) is fixedly connected with the floater (230);
the humidifying method of the humidifying device comprises the following steps: when producing ordinary steel, the first pipeline (1110) is closed, the second pipeline (120) is opened, the dry gas is humidified by the humidifying tank (200) to form humidified gas, and the humidified gas enters the humidified gas bag (400) through the third pipeline (130) to produce the ordinary steel;
when high-strength steel is produced, the first pipeline (1110) is opened, the second pipeline (120) is closed, and dry gas passes through the first pipeline (1110) and enters the humidifying gas bag (400) to evacuate residual humidifying gas in the humidifying gas bag (400) and provide the dry gas for the high-strength steel production.
2. The humidifying device according to claim 1, wherein a guide rod (240) is slidably connected to the floating object (230), and the guide rod (240) is fixedly connected with the humidifying tank (200).
3. The humidification device according to claim 1, wherein a liquid level detection device is connected to a side wall of the humidification tank (200), and the liquid level detection device is communicated with the humidification tank (200).
4. The humidification device according to claim 1, wherein a liquid level meter (270) is connected to a side wall of the humidification tank (200), and the liquid level meter (270) is communicated with the humidification tank (200).
5. The humidification device according to claim 1, wherein an electric heating device (290) is connected to a side wall of the humidification tank (200), and a heating portion of the electric heating device (290) is placed in the liquid.
6. The humidification device according to claim 1, wherein a water inlet valve (250) and a blowdown valve (260) are connected to a bottom of the humidification tank (200).
7. Humidifying device according to any one of claims 1-6, characterized in that the humidifying tank (200) is connected to a water storage tank (300) via a fourth line (280), the water storage tank (300) having an overflow, which is lower than the highest position in the humidifying tank (200) that the liquid can reach.
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| CN109385592A (en) * | 2018-10-09 | 2019-02-26 | 北京首钢冷轧薄板有限公司 | A kind of furnace nose zinc gray control system |
| CN209260142U (en) * | 2018-12-18 | 2019-08-16 | 北京京诚凤凰工业炉工程技术有限公司 | A kind of hot galvanizing annealing furnace nose humidifier |
| CN109778094A (en) * | 2019-04-01 | 2019-05-21 | 马鞍山钢铁股份有限公司 | A kind of humidifier for hot galvanizing furnace nose humidification |
| CN212309205U (en) * | 2020-04-07 | 2021-01-08 | 杨东平 | Communication base station machine room ventilation dust collecting equipment |
| CN111304424A (en) * | 2020-04-27 | 2020-06-19 | 唐山曹妃甸区首燕机械有限公司 | Stove nose humidifier |
| CN212515489U (en) * | 2020-08-26 | 2021-02-09 | 中冶南方（武汉）热工有限公司 | Integrated humidifying system for adjusting dew point |
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