Cored wire welding cooler and using method thereof

Abstract

The invention discloses a cored wire welding cooler and a using method thereof, and relates to the technical field of ferrous metallurgy production. The system comprises a hot water tank, a cold air tank, a cold water tank, a left hot water pipeline, a cold water pipeline, a right hot water pipeline, a left cold air pipeline, a right cold air pipeline and a cooling wall, wherein the left hot water pipeline and the right hot water pipeline are connected with the hot water tank; according to the cooling device, cooling of the welding portion of the cored wire can be achieved, meanwhile, the opening and closing limit of the valve can be automatically adjusted through temperature feedback of the temperature sensor so as to ensure that the cooling strength and temperature can be guaranteed, operation of field workers is simplified, and meanwhile due to the fact that the cored wire is restrained by the cooling wall when being straightened through the cooling wall, the cooling effect is good. The core-spun yarn welding structure and the periphery of the core-spun yarn welding structure are cooled, so that the core-spun yarn welding structure and the periphery of the core-spun yarn welding structure are prevented from generating unusual conditions of welding breaking and even breakage in the coiling and packaging process and the subsequent feeding process, and the manpower and material resource cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of iron and steel metallurgical production, in particular to a cored wire welding cooler and a use method thereof. Background Art

[0002] The cored wire machine is an important part of the cored wire production process. Its main function is to crush various additives (deoxidizer, desulfurizer, modifier, alloy, etc.) to be added to molten steel or molten iron into a certain particle size, and then use cold-rolled low-carbon steel strip to include them into a composite material with any length, so as to adjust the composition of molten steel, thereby significantly improving various indicators such as the morphology of molten steel inclusions to meet production requirements; At present, the cored wire machine produces cored wire by wrapping alloy powder with strip-shaped steel strip. The steel strip obtained after unwinding the steel strip is not a continuous steel strip. The steel strip needs to be welded end to end to meet the needs of the steel strip production line. Welding equipment is required for welding. When the welding equipment currently used welds the steel strip of the cored wire, the heat during the welding process will cause the material around the weld to heat up rapidly, which may cause welding deformation, stress concentration, and even make the material brittle, affecting the subsequent coiling and packaging and even the wire feeding process, affecting the production or process requirements; In view of the above problems, the inventor proposes a cored wire welding cooler and a method of using the same to solve the above problems. Summary of the invention

[0003] In order to solve the problem that the cored wire may open weld or even break during the coiling and packaging process and that it is difficult to feed molten steel when the cored wire has open weld or break, the purpose of the present invention is to provide a cored wire welding cooler and a method of using the same.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a cored wire welding cooler, comprising a hot water tank, a cold air tank, a cold water tank, a left hot water pipe, a cold water pipe, a right hot water pipe, a left cold air pipe, a right cold air pipe and a cooling wall, wherein the left hot water pipe and the right hot water pipe are connected to the hot water tank, the cold water pipe is connected to the cold water tank, and the left cold air pipe and the right cold air pipe are connected to the cold air tank; The left hot water pipe and the right hot water pipe are both provided with hot water pipe temperature sensors, the cold water pipe is provided with a cold water pipe temperature sensor, and the left cold air pipe and the right cold air pipe are provided with a cold air pipe temperature sensor; The cold water pipe is provided with a cold water pipe electric valve, the left hot water pipe and the right hot water pipe are both provided with a hot water pipe electric valve, and the left cold air pipe and the right cold air pipe are both provided with a cold air pipe electric valve; A reserved water inlet is arranged at the lower part of the cooling wall.

[0005] Preferably, one-way valves are provided in the left hot water pipe, the cold water pipe, the right hot water pipe, the left cold air pipe and the right cold air pipe.

[0006] Preferably, one-way valves are provided at the bottoms of the hot water tank, the cold air tank and the cold water tank.

[0007] Preferably, a power switch is provided on the cold water pipe electric valve.

[0008] The present invention also provides a method for using a cored wire welding cooler, comprising the following steps: S1. Inject cooling medium First, close the one-way valve to prevent the cooling medium from flowing back, and then inject hot water with a temperature of 50-60°C into the hot water tank of the cooling medium storage device from the lower pipe of the hot water tank, until it reaches 95% of the capacity of the hot water tank, and stop injecting hot water; At the same time, cold air with a temperature of -20~-10℃ is introduced from the cold air tank to the cold air tank of the cooling medium storage device, and the cold air is injected to 95% of the capacity of the cold air tank, and then the introduction of cold air is stopped; After that, cold water with a water temperature of 1~5℃ is injected into the cold water tank of the cooling medium storage equipment from the lower pipe of the cold water tank, and the injection is stopped until 95% of the capacity of the cold water tank is filled, and the cooling medium is sufficient; S2, cored wire welding cooling After the cored wire begins to be welded, guide the red-hot welded cored wire through the cooling wall to the bottom of the cooling water nozzle, and then follow the steps below: First, open the electric valve of the hot water pipe to allow hot water to flow out through the water outlet to cool the welding part of the cored wire and its surrounding tissues. After cooling, the excess hot water cooling medium flows along the cooling wall to the reserved water outlet at the lower part and is discharged outward. After opening the electric valve of the hot water pipe, adjust the opening ratio of the electric valve of the hot water pipe to control the left hot water pipe and the right hot water pipe. When the cooling temperature is within the target temperature range, stop adjusting the opening of the electric valve of the hot water pipe, otherwise, readjust the opening of the electric valve of the hot water pipe; Open the electric valve of the cold water pipeline to allow cold water to flow out through the water outlet to cool the surrounding tissue of the welding part of the cored wire. After cooling, the excess cold water cooling medium flows along the cooling wall to the reserved water outlet at the lower part and is discharged outward. After opening the electric valve of the cold water pipeline, adjust the opening ratio of the electric valve of the cold water pipeline to control the left hot water pipeline and the right hot water pipeline. When the cooling temperature is within the target temperature range, stop adjusting the opening of the electric valve of the cold water pipeline, otherwise, readjust the opening of the electric valve of the cold water pipeline; Open the electric valve of the cold air pipe to allow the cold air to flow out through the air outlet to cool the tissue around the welding part of the cored wire. After cooling, the excess cold air cooling medium escapes outward. After opening the electric valve of the cold air pipe, adjust the opening ratio of the electric valve of the cold air pipe to control the left hot water pipe and the right hot water pipe. When the cooling temperature is within the target temperature range, stop adjusting the opening of the electric valve of the cold air pipe, otherwise, readjust the opening of the electric valve of the cold air pipe; S3. Start the temperature detection system Start the temperature detection system and start real-time temperature detection of the cored wire cooling system. If the temperature of the cooling medium in the pipeline is lower than or higher than the set threshold, the hot water pipeline temperature sensor, the cold air pipeline temperature sensor, and the cold water pipeline temperature sensor receive signals and transmit signals to the hot water pipeline electric valve, the cold air pipeline electric valve, and the cold water pipeline electric valve to control the size of their switches, so as to control the pressure and temperature of the cooling medium in the pipeline. After the cored wire is cooled, the hot water pipeline electric valve, the cold air pipeline electric valve, and the cold water pipeline electric valve are closed to end the cored wire cooling process. S4. Shut down and drain the cooler system After the welding is cooled, the cooling medium in the cooling medium storage device of the cooler is discharged along the input pipe through the one-way valve, the electric valve of the cold water pipe, the electric valve of the cold air pipe, and the electric valve of the hot water pipe are closed, and the hot water pipe temperature sensor, the cold air pipe temperature sensor and the cold water pipe temperature sensor are closed.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, not only can the cooling of the welding part of the cored wire be achieved, but also the opening and closing limit of the valve can be automatically adjusted through the temperature feedback of the temperature sensor to ensure the cooling intensity and temperature, thereby simplifying the operation of on-site workers. At the same time, since the cored wire is restrained by the cooling wall when it is straightened by the cooling wall, it will not affect other normal structures of the cored wire. By cooling the welding structure of the cored wire and its surroundings, the abnormal situation of open welding or even breakage of the cored wire during coiling and packaging and subsequent wire feeding is avoided, thereby saving manpower and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 The present invention is a schematic structural diagram of a cored wire welding cooler according to an embodiment of the present invention.

[0012] Figure 2 Schematic diagram of the structure of the cored wire nozzle in an embodiment of the present invention.

[0013] In the figure: 1. hot water tank; 2. air conditioning tank; 3. cold water tank; 4. electric valve for hot water pipe; 5. electric valve for air conditioning pipe; 6. electric valve for cold water pipe; 7. power switch; 8. one-way valve; 9. left hot water pipe; 10. cold water pipe; 11. right hot water pipe; 12. left air conditioning pipe; 13. right air conditioning pipe; 15. hot water pipe temperature sensor; 16. air conditioning pipe temperature sensor; 17. cold water pipe temperature sensor; 18. cooling wall; 19. reserved water outlet. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Example: Figure 1-2 As shown, the present invention provides a cored wire welding cooler, comprising a hot water tank 1, a cold air tank 2, a cold water tank 3, a left hot water pipe 9, a cold water pipe 10, a right hot water pipe 11, a left cold air pipe 12, a right cold air pipe 13 and a cooling wall 18, the cold air tank 2 is used to temporarily store cooling medium cold air, the hot water tank 1 is used to temporarily store cooling medium hot water, the cold water tank 3 is used to temporarily store cooling medium cold water, the cooling water pipe 10 is used to transport cooling medium cooling water for cooling the welding part, the left cold air pipe 12 and the right cold air pipe 13 are used to transport cooling medium cooling water for cooling the welding part The surrounding tissues are used to transport cooling medium cold air, the left hot water pipe 9 and the right hot water pipe 11 are used to transport cooling medium hot water to other parts of the cored wire, and the three transport lines correspond to corresponding storage devices respectively, which are prior arts in the art, so they will not be described in detail. By setting the cooling wall 18, the cooling wall 18 begins to play a straightening role, standardizing the forward direction of the cored wire, the left hot water pipe 9 and the right hot water pipe 11 are connected to the hot water tank 1, the cold water pipe 10 is connected to the cold water tank 3, and the left cold air pipe 12 and the right cold air pipe 13 are connected to the cold air tank 2; The left hot water pipe 9 and the right hot water pipe 11 are both provided with a hot water pipe temperature sensor 15, the cold water pipe 10 is provided with a cold water pipe temperature sensor 17, and the left cold air pipe 12 and the right cold air pipe 13 are provided with a cold air pipe temperature sensor 16. By providing the hot water pipe temperature sensor 15, the cold air pipe temperature sensor 16 and the cold water pipe temperature sensor 17, the hot water pipe temperature sensor 15, the cold air pipe temperature sensor 16 and the cold water pipe temperature sensor 17 have the function of monitoring the temperature of the cooling medium, ensuring the temperature stability of the cored wire during the cooling period, preventing the cored wire from being cooled inadequately, causing the strength of the welding part to decrease, and at the same time, ensuring the temperature of the cooling medium during the transportation process, reducing the incomplete cooling of the cored wire welding part caused by insufficient cooling temperature, and ensuring the continuity and stability of the cooling process; The cold water pipe 10 is provided with a cold water pipe electric valve 6, the left hot water pipe 9 and the right hot water pipe 11 are both provided with a hot water pipe electric valve 4, and the left cold air pipe 12 and the right cold air pipe 13 are both provided with a cold air pipe electric valve 5. By providing the hot water pipe electric valve 4, the cold air pipe electric valve 5 and the cold water pipe electric valve 6, the hot water pipe electric valve 4, the cold air pipe electric valve 5 and the cold water pipe electric valve 6 are used to control the release and closing of the cooling medium and control the intensity of cooling, and the hot water pipe temperature sensor 15, the cold air pipe temperature sensor 16 and the cold water pipe temperature sensor 17 are all connected to the hot water pipe electric valve 4, the cold air pipe electric valve 5 and the cold water pipe electric valve 6 for feedback control of the valve opening and closing size, thereby controlling the pressure of the cooling medium in the pipe and the cooling temperature; A reserved water inlet 19 is provided at the lower part of the cooling wall 18. The reserved water inlet 19 is used to discharge excess cooling medium, thereby preventing water from entering the core wire due to excessive cooling medium flow, causing the core material to become wet, and affecting the wire feeding operation in the subsequent steelmaking process.

[0016] One-way valves are provided in the left hot water pipe 9 , the cold water pipe 10 , the right hot water pipe 11 , the left cold air pipe 12 and the right cold air pipe 13 .

[0017] A one-way valve 8 is provided at the bottom of the hot water tank 1, the cold air tank 2 and the cold water tank 3. By providing the one-way valve 8, the one-way valve 8 allows the fluid (liquid or gas) to flow in one direction and prevents the flow in the opposite direction, so that the cooling medium in the storage device reaches a certain pressure and storage volume, which is convenient for subsequent sufficient cooling of the welding part.

[0018] A power switch 7 is provided on the cold water pipe electric valve 6. By setting the power switch 7, after the hot water pipe electric valve 4, the cold air pipe electric valve 5 and the cold water pipe electric valve 6 are opened through the power switch 7, the cooling medium in the hot water tank 1, the cold air tank 2 and the cold water tank 3 will flow into the left hot water pipe 9, the cold water pipe 10, the right hot water pipe 11, the left cold air pipe 12 and the right cold air pipe 13 at a certain pressure and temperature, and guide to different cooling parts of the cored wire.

[0019] The present invention also provides a method for using a cored wire welding cooler, comprising the following steps: S1. Inject cooling medium First, close the one-way valve 8 to prevent the cooling medium from flowing back, and then inject hot water with a temperature of 50-60°C into the cooling medium storage device hot water tank 1 from the lower pipe of the hot water tank 1, inject it to 95% of the capacity of the hot water tank 1, and stop injecting hot water; At the same time, cold air with a temperature of -20~-10°C is introduced from the cold air tank 2 to the cold air tank 2 of the cooling medium storage device, and the cold air is injected to 95% of the capacity of the cold air tank 2, and the introduction of cold air is stopped; Afterwards, cold water with a water temperature of 1-5°C is injected into the cold water tank 3 of the cooling medium storage device from the lower pipe of the cold water tank 3 until it reaches 95% of the capacity of the cold water tank 3, and the injection of cold water is stopped until the cooling medium is sufficient; S2, cored wire welding cooling After the cored wire begins to be welded, the red-hot welded cored wire is guided through the cooling wall 18 to below the cooling water inlet, and then the following steps are followed: First, open the hot water pipe electric valve 4 to allow hot water to flow out through the water outlet to cool the welding part of the cored wire and its surrounding tissues. After cooling, the excess hot water cooling medium flows along the cooling wall 18 to the reserved water outlet 19 at the lower part and is discharged outward. After opening the hot water pipe electric valve 4, adjust the opening ratio of the hot water pipe electric valve 4 to control the left hot water pipe 9 and the right hot water pipe 11. When the cooling temperature is within the target temperature range, stop adjusting the opening of the hot water pipe electric valve 4, otherwise, readjust the opening of the hot water pipe electric valve 4; Open the cold water pipeline electric valve 6 to allow cold water to flow out through the water outlet to cool the surrounding tissue of the welding part of the cored wire. After cooling, the excess cold water cooling medium flows along the cooling wall 18 to the reserved water outlet 19 at the lower part and is discharged outward. After opening the cold water pipeline electric valve 6, adjust the opening ratio of the cold water pipeline electric valve 6 to control the left hot water pipeline 9 and the right hot water pipeline 11. When the cooling temperature is within the target temperature range, stop adjusting the opening of the cold water pipeline electric valve 6, otherwise, readjust the opening of the cold water pipeline electric valve 6; Open the cold air duct electric valve 5 to allow cold air to flow out through the air outlet to cool the tissue around the welding part of the cored wire. After cooling, the excess cold air cooling medium escapes outward. After opening the cold air duct electric valve 5, adjust the opening ratio of the cold air duct electric valve 5 to control the left hot water pipe 9 and the right hot water pipe 11. When the cooling temperature is within the target temperature range, stop adjusting the opening of the cold air duct electric valve 5, otherwise, readjust the opening of the cold air duct electric valve 5; S3. Start the temperature detection system Start the temperature detection system and start to detect the temperature of the cored wire cooling system in real time. If the temperature of the cooling medium in the pipeline is lower than or higher than the set threshold, the hot water pipeline temperature sensor 15, the cold air pipeline temperature sensor 16, and the cold water pipeline temperature sensor 17 receive signals and transmit signals to the hot water pipeline electric valve 4, the cold air pipeline electric valve 5, and the cold water pipeline electric valve 6 to control the size of their switches, so as to control the pressure and temperature of the cooling medium in the pipeline. After the cored wire is cooled, the hot water pipeline electric valve 4, the cold air pipeline electric valve 5, and the cold water pipeline electric valve 6 are closed to end the cored wire cooling process. S4. Shut down and drain the cooler system After the welding cooling is completed, the cooling medium in the cooling medium storage device of the cooler is discharged along the input pipe through the one-way valve 8, the cold water pipe electric valve 6, the cold air pipe electric valve 5, and the hot water pipe electric valve 4 are closed, and the hot water pipe temperature sensor 15, the cold air pipe temperature sensor 16 and the cold water pipe temperature sensor 17 are closed.

[0020] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cored wire welding cooler, comprising a hot water tank (1), a cold air tank (2), a cold water tank (3), a left hot water pipe (9), a cold water pipe (10), a right hot water pipe (11), a left cold air pipe (12), a right cold air pipe (13) and a cooling wall (18), characterized in that: The left hot water pipe (9) and the right hot water pipe (11) are connected to the hot water tank (1), the cold water pipe (10) is connected to the cold water tank (3), and the left cold air pipe (12) and the right cold air pipe (13) are connected to the cold air tank (2); The left hot water pipe (9) and the right hot water pipe (11) are both provided with hot water pipe temperature sensors (15), the cold water pipe (10) is provided with a cold water pipe temperature sensor (17), and the left cold air pipe (12) and the right cold air pipe (13) are provided with cold air pipe temperature sensors (16); The cold water pipe (10) is provided with a cold water pipe electric valve (6), the left hot water pipe (9) and the right hot water pipe (11) are both provided with a hot water pipe electric valve (4), and the left cold air pipe (12) and the right cold air pipe (13) are both provided with a cold air pipe electric valve (5); A reserved water inlet (19) is provided at the lower portion of the cooling wall (18).

2. A cored wire welding cooler according to claim 1, characterized in that: One-way valves are provided in the left hot water pipe (9), the cold water pipe (10), the right hot water pipe (11), the left cold air pipe (12) and the right cold air pipe (13).

3. A cored wire welding cooler according to claim 1, characterized in that: One-way valves (8) are provided at the bottom of the hot water tank (1), the cold air tank (2) and the cold water tank (3).

4. A cored wire welding cooler as claimed in claim 1, characterized in that: The cold water pipeline electric valve (6) is provided with a power switch (7).

5. A method for using the cored wire welding cooler according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Inject cooling medium First, close the one-way valve (8) to prevent the cooling medium from flowing back, then inject hot water at a temperature of 50 to 60° C. into the cooling medium storage device hot water tank (1) from the lower pipe of the hot water tank (1), until the hot water tank (1) reaches 95% of its capacity, and then stop injecting hot water; At the same time, cold air at a temperature of -20 to -10°C is introduced from the cold air tank (2) into the cooling medium storage device cold air tank (2), and the introduction of cold air is stopped until the cold air tank (2) reaches 95% of its capacity; Afterwards, cold water having a water temperature of 1 to 5° C. is injected into the cold water tank (3) of the cooling medium storage device from the lower pipe of the cold water tank (3) until 95% of the capacity of the cold water tank (3) is filled, and the injection of cold water is stopped until the cooling medium is sufficient; S2, cored wire welding cooling After the cored wire begins to be welded, the red hot welded cored wire is guided through the cooling wall (18) to below the cooling water inlet, and then the following steps are performed: First, the hot water pipe electric valve (4) is opened to allow hot water to flow out through the water outlet to cool the welding part of the cored wire and the surrounding tissue. After cooling, the excess hot water cooling medium flows along the cooling wall (18) to the reserved water outlet (19) at the lower part and is discharged outward. After the hot water pipe electric valve (4) is opened, the opening ratio of the hot water pipe electric valve (4) is adjusted to control the left hot water pipe (9) and the right hot water pipe (11). When the cooling temperature is within the target temperature range, the opening adjustment of the hot water pipe electric valve (4) is stopped. Otherwise, the opening of the hot water pipe electric valve (4) is readjusted. The cold water pipeline electric valve (6) is opened to allow cold water to flow out through the water outlet to cool the surrounding tissue of the welding part of the cored wire. After cooling, the excess cold water cooling medium flows along the cooling wall (18) to the reserved water outlet (19) at the lower part and is discharged outward. After the cold water pipeline electric valve (6) is opened, the opening ratio of the cold water pipeline electric valve (6) is adjusted to control the left hot water pipeline (9) and the right hot water pipeline (11). When the cooling temperature is within the target temperature range, the opening adjustment of the cold water pipeline electric valve (6) is stopped. Otherwise, the opening of the cold water pipeline electric valve (6) is readjusted. The cold air duct electric valve (5) is opened to allow cold air to flow out through the air outlet to cool the tissue around the welding part of the cored wire. After cooling, the excess cold air cooling medium escapes outward. After the cold air duct electric valve (5) is opened, the opening ratio of the cold air duct electric valve (5) is adjusted to control the left hot water duct (9) and the right hot water duct (11). When the cooling temperature is within the target temperature range, the opening adjustment of the cold air duct electric valve (5) is stopped. Otherwise, the opening of the cold air duct electric valve (5) is readjusted. S3. Start the temperature detection system The temperature detection system is started to detect the temperature of the cored wire cooling system in real time. If the temperature of the cooling medium in the pipeline is lower than or higher than a set threshold, the hot water pipeline temperature sensor (15), the cold air pipeline temperature sensor (16), and the cold water pipeline temperature sensor (17) receive a signal and transmit a signal to the hot water pipeline electric valve (4), the cold air pipeline electric valve (5), and the cold water pipeline electric valve (6) to control the size of their opening and closing, so as to control the pressure and temperature of the cooling medium in the pipeline. After the cored wire is completely cooled, the hot water pipeline electric valve (4), the cold air pipeline electric valve (5), and the cold water pipeline electric valve (6) are closed to end the cored wire cooling process. S4. Shut down and drain the cooler system After the welding process is cooled, the cooling medium in the cooling medium storage device of the cooler is discharged along the input pipeline through the one-way valve (8), the cold water pipeline electric valve (6), the cold air pipeline electric valve (5), and the hot water pipeline electric valve (4) are closed, and the hot water pipeline temperature sensor (15), the cold air pipeline temperature sensor (16), and the cold water pipeline temperature sensor (17) are closed.

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