Uninterrupted gas supply device of oriented silicon steel annular furnace rotating unit

Abstract

An uninterrupted gas supply device of an oriented silicon steel annular furnace rotating unit comprises a rotating trolley (5) and a protective gas supply butt joint device on the gas supply side, and is characterized in that the rotating trolley (5) rotates around the center of an annular furnace, and the protective gas supply butt joint device on the gas supply side comprises a rotating center pier (6.1) and a moving arm trolley (6); an air supply side movable docking device (3) and an air supply side fixed docking device (4). The uninterrupted gas supply device and method for the oriented silicon steel annular furnace rotating unit have the advantages that real uninterrupted gas supply of protective gas is achieved through matching of the two butt joint devices, excellent oriented silicon steel product performance can be obtained, manual operation is replaced by full-automatic operation, the working environment of workers is improved, labor efficiency is improved, and the production cost is reduced. The utility model has the advantages of simple operation, unmanned operation, high operation efficiency and shorter switching process time, improves the operation efficiency of a production line, and is more in line with the high-quality development requirements of the industry and the country on wisdom and unmanned operation.

Description

Technical Field

[0001] The utility model relates to a gas supply device for the metallurgical industry, in particular to an uninterrupted gas supply device for a rotating unit of an annular furnace for oriented silicon steel. Background Art

[0002] Grain-oriented silicon steel products are absolutely important core materials for the power grid transmission and transformation system. Due to their long process flow, highly complex technology, strict requirements on the process and equipment in each process, and demanding requirements on the performance of the final product, the oriented silicon steel process and equipment technology represents the top level of a country's steel metallurgy and is known as the "crown jewel of the steel industry."

[0003] The RBAF high-temperature recrystallization annealing ring furnace is one of the most core heat treatment equipment in the production process of high magnetic induction oriented silicon steel. Its function is to heat the oriented silicon steel strip to a maximum of 1250°C to achieve high-temperature recrystallization annealing, so as to make the silicon steel achieve uniform crystal structure, coarse grains, remove harmful impurities, etc., thereby obtaining high-magnetic induction and low iron loss oriented silicon steel products of excellent quality.

[0004] The steel coils in the RBAF high-temperature recrystallization annealing ring furnace are placed on a rotating trolley in the furnace. The trolley supporting the steel coils rotates according to the set time requirements so as to transport the steel coils in the furnace to different process sections for heat treatment. Protective gas needs to be introduced into the steel coils throughout the entire process in the furnace to protect them from oxidation. The protective gas used is a mixture of nitrogen and hydrogen. The commonly used method for the protective gas supply on the rotating trolley side is to connect the hose with a quick connector to the connector of the protective gas pipeline on the rotating trolley. However, as the rotating trolley rotates to the extreme angle, the gas supply hose must be manually pulled out and quickly connected to the protective gas connector at other positions on the trolley in the shortest possible time, thereby ensuring that the protective gas supply to the steel coils on the rotating trolley is interrupted as short as possible.

[0005] But the disadvantages of this method are:

[0006] 1) The workload is large, the hose and quick connector are large in size (DN80-125), heavy in weight, and the manual operation is extremely inconvenient;

[0007] 2) There is an interruption in gas supply when the hose is manually switched, which has a certain adverse effect on the final quality of the steel coil in the furnace.

[0008] Therefore, the gas supply method of the rotary unit of the known oriented silicon steel annular furnace has the above-mentioned inconveniences and problems. Utility Model Content

[0009] The purpose of the utility model is to provide a safe and reliable uninterrupted gas supply device for a rotating unit of an annular furnace for oriented silicon steel.

[0010] To achieve the above purpose, the technical solution of the utility model is:

[0011] An uninterrupted gas supply device for a rotating unit of an annular furnace for oriented silicon steel, comprising a rotating trolley and a protective gas supply docking device on the gas supply side, characterized in that:

[0012] The rotating trolley rotates around the center of the annular furnace, and the rotating trolley is provided with a plurality of material positions for placing steel coils, and the angle between two adjacent material positions is the first angle. The rotating trolley is provided with a protective gas ring pipe for introducing protective gas into the steel coils on the material positions, and the rotating trolley rotates one material position at the first angle each time; the top of the rotating trolley is provided with a plurality of gas-receiving side female joint assemblies evenly arranged in the circumferential direction, and the angle between two adjacent gas-receiving side female joint assemblies is the second angle, and the gas-receiving side female joint assembly is provided with a female joint and a first gas-receiving side cut-off valve, and the two are connected by a first soft connection, and the first gas-receiving side cut-off valve is connected with the protective gas ring pipe, and the female joint is fixedly arranged on the female joint base;

[0013] The protective gas supply docking device on the gas supply side includes a rotating central pier, a movable arm trolley, a gas supply side mobile docking device and a gas supply side fixed docking device.

[0014] The rotating center pier is fixed at the bottom of the sunken foundation, and a guide rail is provided on the top surface of the foundation;

[0015] The movable arm of the movable arm trolley is arranged horizontally, and the movable arm and the rotating center pier are arranged in an L shape. A wheel cooperating with the guide rail is arranged under the movable arm of the movable arm trolley; one end of the movable arm trolley is rotated through the rotating shaft at the top of the rotating center pier and the wheel cooperating with the guide rail;

[0016] The air supply side mobile docking device is arranged on the upper part of the mobile arm end head, the male joint for docking with the female joint on the air supply side mobile docking device is fixedly installed on the male joint base, the male joint is connected to the outlet of the second cut-off valve, the air inlet side is connected to the sliding telescopic joint through the second soft connection, and the sliding telescopic joint is connected to the air supply pipeline of the mobile docking device: a driving cylinder is arranged on the upper part of the mobile docking device, one end of the driving cylinder is fixed on the base of the air supply side mobile docking device, and the other end is connected to the male joint base. Under the action of the driving cylinder, the male joint base can move forward and backward along the direction of the guide pin, wherein the guide pin 1 and the guide pin 2 are fixedly arranged on the base of the air supply side mobile docking device, and are driven separately by the guide pin driving cylinder 1 and the guide pin driving cylinder 2 respectively:

[0017] Wherein: when the mobile docking device on the air supply side needs to dock with the female joint assembly on the air receiving side, the mobile docking device on the air supply side stops at the initial position through the mobile arm trolley. At this time, the mobile docking device on the air supply side is roughly positioned and aligned with one of the female joint assemblies on the air receiving side. At this time, the guide pin 1 and the guide pin 2 are driven forward separately by the guide pin driving cylinder 1 and the guide pin driving cylinder 2 respectively, and inserted into the corresponding holes of the female joint base for precise positioning to ensure that the center of the female joint and the male joint are accurately aligned. Then, the driving cylinder drives the male joint forward to dock with the female joint. After the docking is completed, the first cut-off valve and the first soft connection are automatically opened, and the protective gas passes through the protective gas ring pipe through the docking device.

[0018] When the air supply side mobile docking device and the air receiving side female joint assembly need to be disconnected, the first shut-off valve and the first soft connection are automatically closed to cut off the protective gas, and then the driving cylinder drives the male joint to retreat and disconnect from the female joint, and the guide pin 1 and the guide pin 2 are then driven backward separately by the guide pin driving cylinder 1 and the guide pin driving cylinder 2 respectively, and stop at the original position after exiting the corresponding hole of the female joint base;

[0019] The structure and working principle of the fixed docking device on the air supply side are the same as those of the side air supply mobile docking device.

[0020] Among them: the air supply side mobile docking device is fixedly installed on the mobile arm trolley, one end of the mobile arm trolley is fixed on the center point of the annular furnace through the rotating center pier, and always rotates along the center point of the annular furnace. The mobile arm reduction motor is fixedly installed on the mobile arm trolley frame, and its output shaft is connected to the driving sprocket through an electromagnetic clutch, and the driving sprocket is connected to the main driving wheel through a transmission chain. The main driving wheel and the passive wheel are installed on the running track of the main driving wheel and the passive wheel.

[0021] When the movable arm trolley needs to rotate, the movable arm reduction motor starts, and the electromagnetic clutch is energized and attracted to drive the driving sprocket to rotate, and then the main driving wheel is driven to rotate through the transmission chain; when the movable docking device on the air supply side is docked with the female joint assembly on the air receiving side, the electromagnetic clutch loses power and disengages, and the movable arm trolley can passively rotate with the rotating trolley;

[0022] The angle between the movable docking device on the air supply side and the fixed docking device on the air supply side is the third angle.

[0023] The uninterrupted gas supply device of the rotating unit of the oriented silicon steel annular furnace of the utility model can be further realized by adopting the following technical measures.

[0024] The uninterrupted gas supply device of the rotating unit of the aforementioned oriented silicon steel ring furnace, wherein the rotating trolley rotates clockwise or counterclockwise.

[0025] The uninterrupted gas supply device of the rotating unit of the aforementioned oriented silicon steel ring furnace, wherein the first flexible connection can eliminate the deviation caused by insufficient positioning accuracy and control accuracy during the docking process.

[0026] The uninterrupted gas supply device of the rotating unit of the aforementioned oriented silicon steel ring furnace, wherein the movable arm of the movable arm trolley is arranged horizontally.

[0027] The uninterrupted gas supply device of the rotating unit of the aforementioned oriented silicon steel ring furnace, wherein the guide rails are configured as main driving wheel guide rails and passive wheel guide rails, and the wheels are configured as driving wheels and passive wheels.

[0028] After adopting the above technical solution, the uninterrupted gas supply device of the rotating unit of the oriented silicon steel annular furnace of the utility model has the following advantages:

[0029] 1. It realizes the truly uninterrupted supply of protective gas, and can obtain excellent oriented silicon steel product performance;

[0030] 2. Fully automated operations replace manual operations, improve the working environment for workers, increase labor efficiency, and enable unmanned operations, which is more in line with the industry and national requirements for high-quality development of "intelligence" and "unmanned";

[0031] 3. High operating efficiency, shorter switching time, and improved production line operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the arrangement of the uninterrupted gas supply device of the rotating unit of the oriented silicon steel annular furnace according to an embodiment of the utility model;

[0033] Figure 2 It is a structural schematic diagram of an uninterrupted gas supply device of a rotating unit of an annular furnace for oriented silicon steel according to an embodiment of the utility model;

[0034] Figure 3 for Figure 2 A top view of

[0035] Figure 4 It is a schematic diagram of the docking structure of the uninterrupted gas supply device of the rotating unit of the oriented silicon steel annular furnace according to an embodiment of the utility model;

[0036] Figure 5 for Figure 4 Top view of the .

[0037] In the figure: 1 protective gas ring pipe, 2 gas receiving side female joint assembly, 2.1 female joint, 2.2 first shut-off valve, 2.3 first flexible connection, 2.4 female joint base, 3 mobile docking device on the gas supply side, 3.1 male joint, 3.2 second shut-off valve, 3.3 second flexible connection, 3.4 sliding telescopic joint, 3.5 guide pin 1, 3.6 guide pin 2, 3.7 guide pin drive cylinder 1, 3.8 guide pin drive cylinder 2, 3.9 docking cylinder, 3.10 male joint base, 3.11 base of mobile docking device on the gas supply side, 4 fixed docking device on the gas supply side, 4.1 male joint, 4.2 shut-off valve on the gas supply side , 4.3 the third soft connection, 4.4 sliding telescopic joint, 4.5 guide pin one, 4.6 guide pin two, 4.7 guide pin drive cylinder one, 4.8 guide pin drive cylinder two, 4.9 docking cylinder, 4.10 male joint base, 4.11 air supply side fixed docking device base, 5 rotating trolley, 6 moving arm trolley, 6.1 rotating center pier, 6.2 moving arm trolley frame, 6.3 moving arm reduction motor, 6.4 clutch, 6.5 drive sprocket, 6.6 transmission chain, 6.7 main drive wheel, 6.8 passive wheel, 6.9 main drive wheel guide, 6.10 passive wheel guide, 7 foundation, 8 material level. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the embodiments and the accompanying drawings. Example

[0039] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the layout of the uninterrupted gas supply device of the rotating unit of the circular furnace for oriented silicon steel according to the embodiment of the utility model. As shown in the figure, the rotating trolley 5 of the circular furnace is provided with a number of material positions 8 for placing steel coils according to the process requirements, and the angle between two adjacent material positions 5 is A. The protective gas ring pipe 1 is also fixedly installed on the rotating trolley 5, which is used to pass protective gas to the steel coils on the material positions 8. The rotating trolley 5 rotates around the center point of the circular furnace, and the rotation direction can be clockwise or counterclockwise, which is ultimately determined by the layout of the furnace process section. The rotating trolley 5 rotates one material position each time, that is, angle A.

[0040] A plurality of gas receiving side female joint assemblies 2 are arranged evenly in the circumferential direction on the rotating trolley 5, and the angle between two adjacent gas receiving side female joint assemblies 2 is B. A female joint 2.1 and a first gas receiving side cut-off valve 2.2 are installed on the gas receiving side female joint assembly 2, and the two are connected through a first flexible connection 2.3. The first gas receiving side cut-off valve 2.2 is connected to the protective gas ring pipe 1, and the female joint 2.1 is installed and fixed on the female joint base 2.4. The first flexible connection 2.3 can eliminate the deviation caused by insufficient positioning accuracy, control accuracy, etc. during the docking process.

[0041] Figure 2This is a schematic structural diagram of an uninterrupted gas supply device for a rotating unit of an annular furnace for oriented silicon steel according to an embodiment of the utility model. Figure 3 for Figure 2 The protective gas supply docking device on the gas supply side is composed of a gas supply side mobile docking device 3 and a gas supply side fixed docking device 4. The gas supply side mobile docking device 3 is fixedly installed on the movable arm trolley 6, and the gas supply side fixed docking device 4 is fixedly installed on the foundation 7.

[0042] The angle between the movable docking device 3 on the air supply side and the fixed docking device 4 on the air supply side is C.

[0043] The male connector 3.1 on the mobile docking device 3 on the air supply side is fixedly installed on the male connector base 3.10, the outlet of the second shut-off valve 3.2 is connected to the male connector 3.1, and the air inlet side is connected to the sliding expansion joint 3.4 through the second soft connection 3.3, and the sliding expansion joint 3.4 is connected to the air supply pipeline of the mobile docking device.

[0044] One end of the driving cylinder 3.9 is fixed on the base 3.11 of the mobile docking device on the air supply side, and the other end is connected to the male connector base 3.10. Under the action of the driving cylinder 3.9, the male connector base 3.10 can move forward and backward along the direction of the guide pin. The guide pin 1 3.5 and the guide pin 2 3.6 are fixedly installed on the base 3.11 of the mobile docking device on the air supply side, and are driven separately by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively.

[0045] Figure 4 This is a schematic diagram of the docking structure of the uninterrupted gas supply device of the rotating unit of the oriented silicon steel annular furnace according to the embodiment of the utility model. Figure 5 for Figure 4 When the air supply side mobile docking device 3 needs to dock with the air receiving side female joint assembly 2, the air supply side mobile docking device 3 stops at the initial position through the mobile arm trolley 6. At this time, the air supply side mobile docking device 3 is roughly positioned and aligned with one of the air receiving side female joint assemblies 2. At this time, the guide pin 1 3.5 and the guide pin 2 3.6 are driven forward by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively, and inserted into the corresponding holes of the female joint base 2.4 for precise positioning to ensure that the center of the female joint 2.1 and the male joint 3.1 are accurately aligned, and then the driving cylinder 3.9 drives the male joint 3.1 forward to dock with the female joint 2.1. After the docking is completed, the first shut-off valve 2.2 and the first soft connection 2.3 are automatically opened, and the protective gas passes through the protective gas ring pipe 1 through the docking device.

[0046] When the mobile docking device 3 on the air supply side needs to be disconnected from the female joint assembly 2 on the air receiving side, the first shut-off valve 2.2 and the first soft connection 2.3 are automatically closed to cut off the protective gas, and then the driving cylinder 3.9 drives the male joint 3.1 to retreat and disconnect from the female joint 2.1, and the guide pin 1 3.5 and the guide pin 2 3.6 are then driven backward separately by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively, and stop at the original position after exiting the corresponding holes of the female joint base 2.4.

[0047] The structure and working principle of the side air supply fixed docking device 4 are basically the same as those of the side air supply mobile docking device 3 .

[0048] The air supply side mobile docking device 3 is fixedly mounted on the mobile arm trolley 6. One end of the mobile arm trolley 6 is fixed to the center point of the annular furnace through the rotation center 6.1, and always rotates along the center point of the annular furnace. The mobile arm reduction motor 6.3 is fixedly mounted on the mobile arm trolley frame, and its output shaft is connected to the driving sprocket 6.5 through the electromagnetic clutch 6.4, and the driving sprocket 6.5 is connected to the main driving wheel 6.7 through the transmission chain 6.6. The main driving guide rail 6.9 and the driven wheel guide rail 6.10 are installed on the running tracks of the main driving wheel 6.7 and the driven wheel 6.8.

[0049] When the movable arm trolley 6 needs to rotate, the movable arm reduction motor 6.3 starts, drives the driving sprocket 6.5 to rotate through the electromagnetic clutch 6.4 (in the energized state), and then drives the main driving wheel to rotate through the transmission chain 6.6. When the air supply side mobile docking device 3 is docked with the air receiving side female joint assembly 2, the electromagnetic clutch 6.4 loses power and disengages, and the movable arm 6 can passively rotate with the rotating trolley 5. Example

[0050] The uninterrupted gas supply method of the rotary unit of the oriented silicon steel annular furnace of the utility model:

[0051] The rotating trolley 5 of the oriented silicon steel annular furnace is provided with a number of material positions 8 for placing steel coils according to process requirements. The angle between two adjacent material positions 8 is A. The protective gas ring pipe 1 is also fixedly installed on the rotating trolley 5 to pass protective gas to the steel coils on the material positions 8. The rotating trolley 5 rotates around the center point of the annular furnace. The rotation direction can be clockwise or counterclockwise, which is ultimately determined by the layout of the furnace process section. The rotating trolley 5 rotates one material position each time, that is, angle A.

[0052] A plurality of gas receiving side female joint assemblies 2 are arranged evenly in the circumferential direction on the rotating trolley 5, and the angle between two adjacent gas receiving side female joint assemblies 2 is B. A female joint 2.1 and a first gas receiving side cut-off valve 2.2 are installed on the gas receiving side female joint assembly 2, and the two are connected through a first flexible connection 2.3. The first gas receiving side cut-off valve 2.2 is connected to the protective gas annular pipe 1, and the female joint 2.1 is installed and fixed on the female joint base 2.4. The flexible connection 2.3 can eliminate the deviation caused by insufficient positioning accuracy, control accuracy, etc. during the docking process.

[0053] The protective gas supply docking device on the gas supply side is composed of a mobile docking device 3 on the gas supply side and a fixed docking device 4 on the gas supply side. The mobile docking device 3 on the gas supply side is fixedly installed on the movable arm trolley 6, and the fixed docking device 4 on the gas supply side is fixedly installed on the foundation 7.

[0054] The angle between the movable docking device 3 on the air supply side and the fixed docking device 4 on the air supply side is C.

[0055] The male connector 3.1 on the mobile docking device 3 on the air supply side is fixedly installed on the male connector base 3.10, the outlet of the second shut-off valve 3.2 is connected to the male connector 3.1, and the air inlet side is connected to the sliding expansion joint 3.4 through the second soft connection 3.3, and the sliding expansion joint 3.4 is connected to the air supply pipeline of the mobile docking device.

[0056] One end of the driving cylinder 3.9 is fixed on the base 3.11 of the mobile docking device on the air supply side, and the other end is connected to the male connector base 3.10. Under the action of the driving cylinder 3.9, the male connector base 3.10 can move forward and backward along the direction of the guide pin. The guide pin 1 3.5 and the guide pin 2 3.6 are fixedly installed on the base 3.11 of the mobile docking device on the air supply side, and are driven separately by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively.

[0057] When the mobile docking device 3 on the air supply side needs to be docked with the female joint assembly 2 on the air receiving side, the mobile docking device 3 on the air supply side stops at the initial position through the mobile arm trolley 6. At this time, the mobile docking device 3 on the air supply side is roughly positioned and aligned with one of the female joint assemblies 2 on the air receiving side. At this time, the guide pin 1 3.5 and the guide pin 2 3.6 are driven forward separately by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively, and inserted into the corresponding holes of the female joint base 2.4 for precise positioning to ensure that the center of the female joint 2.1 and the male joint 3.1 are accurately aligned, and then the driving cylinder 3.9 drives the male joint 3.1 forward to dock with the female joint 2.1. After the docking is completed, the first shut-off valve 2.2 and the first soft connection 2.3 are automatically opened, and the protective gas passes through the protective gas ring pipe 1 through the docking device.

[0058] When the mobile docking device 3 on the air supply side needs to be disconnected from the female joint assembly 2 on the air receiving side, the first shut-off valve 2.2 and the first soft connection 2.3 are automatically closed to cut off the protective gas, and then the driving cylinder 3.9 drives the male joint 3.1 to retreat and disconnect from the female joint 2.1, and the guide pin 1 3.5 and the guide pin 2 3.6 are then driven backward separately by the guide pin driving cylinder 1 3.7 and the guide pin driving cylinder 2 3.8 respectively, and stop at the original position after exiting the corresponding holes of the female joint base 2.4.

[0059] The structure and working principle of the side air supply fixed docking device 4 are basically the same as those of the side air supply mobile docking device 3 .

[0060] The air supply side mobile docking device 3 is fixedly mounted on the mobile arm trolley 6. One end of the mobile arm trolley 6 is fixed to the center point of the annular furnace through the rotation center 6.1, and always rotates along the center point of the annular furnace. The mobile arm reduction motor 6.3 is fixedly mounted on the mobile arm trolley frame, and its output shaft is connected to the driving sprocket 6.5 through the electromagnetic clutch 6.4, and the driving sprocket 6.5 is connected to the main driving wheel 6.7 through the transmission chain 6.6. The main driving guide rail 6.9 and the driven wheel guide rail 6.10 are installed on the running tracks of the main driving wheel 6.7 and the driven wheel 6.8.

[0061] When the movable arm trolley 6 needs to rotate, the movable arm reduction motor 6.3 starts, drives the driving sprocket 6.5 to rotate through the electromagnetic clutch 6.4 (in the energized state), and then drives the main driving wheel to rotate through the transmission chain 6.6. When the air supply side mobile docking device 3 is docked with the air receiving side female joint assembly 2, the electromagnetic clutch 6.4 loses power and disengages, and the movable arm 6 can passively rotate with the rotating trolley 5.

[0062] The following describes the uninterrupted gas supply method by taking clockwise rotation as an example:

[0063] When the rotating trolley 5 is in the stopped state, the moving arm 6 stops at the initial position. At this time, the mobile docking device 3 on the air supply side is roughly aligned with one set of the female joint assemblies 2 on the air receiving side. When the steel coil on the material level 8 needs air supply, the mobile docking device 3 on the air supply side completes the docking with one set of the female joint assemblies 2 on the air receiving side, and the protective gas is supplied to the steel coil through the protective gas ring pipe 1. At the same time, the electromagnetic clutch 6.4 on the moving arm 6 loses power and disengages, and the moving arm 6 passively rotates with the rotating trolley 5.

[0064] When the annular furnace starts production, the rotating trolley 5 starts to rotate according to the rhythm required by the production process, rotating one material level (angle A) each time. The interval time of each rotation is determined by the production process (the interval time is 1-2 hours). After rotating several material levels, it stops and the moving arm 6 reaches the limit position from the initial position. At this time, the rotation angle of the moving arm 6 is B.

[0065] At this time, the fixed docking device 4 on the gas supply side is roughly aligned with one set of the female joint assembly 2 on the gas receiving side, and the fixed docking device 4 on the gas supply side is docked with the aligned set of female joint assembly 2 on the gas receiving side to ensure the uninterrupted gas supply of the protective gas ring tube 1. After the docking is completed, the mobile docking device 3 on the gas supply side is disengaged from the corresponding female joint assembly 2 on the gas receiving side. The electromagnetic clutch 6.4 on the mobile arm 6 is electrically attracted, and the mobile arm is driven by the mobile arm reduction motor 6.3 to rotate, and then stops after returning to the initial position. At this time, the mobile docking device 3 on the gas supply side is roughly aligned with one set of the female joint assembly 2 on the gas receiving side, and the mobile docking device 3 on the gas supply side is docked with the corresponding set of female joint assembly 2 on the gas receiving side. After the docking is completed, the fixed docking device 4 on the gas supply side is disengaged from the female joint assembly 2 on the gas receiving side, and then the mobile arm 6 rotates with the rotating trolley again, and the above process is repeated.

[0066] Arrangement angle and quantity determination method of gas receiving side female joint assembly 2, gas supply side mobile docking device 3, gas supply side fixed docking device 4

[0067] The angles A (the angle between two adjacent material levels 5), B (the angle between two adjacent air receiving side female joint components 2, which is also the angle between the initial position and the limit position of the movable arm 6), and C (the angle between the air supply side mobile docking device 3 and the air supply side fixed docking device 4) involved in the above-mentioned should meet the following conditions:

[0068]

[0069] The fixed docking device 4 on the air supply side cannot be set between the initial position and the limit position of the movable arm 6, that is, it satisfies:

[0070]

[0071] Substituting equation 1, equation 2, and equation 3 into the above equation, we can get:

[0072]

[0073] Wherein: n1 is an integer divisible by 360 and is greater than or equal to 3, which is the number of the female connector assemblies 2 on the air receiving side;

[0074] n2: integer;

[0075] n3: is an integer.

[0076] In this embodiment, the air supply side mobile docking device 3 and the air supply side fixed docking device 4 are both one set. If multiple air supply is required, it is only necessary to add a corresponding number of cut-off valves, docking joints and other components to the air receiving side female joint component 2, the air supply side mobile docking device 3 and the air supply side fixed docking device 4. The guide pin driving cylinder and docking cylinder can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0077] The utility model has substantial characteristics and significant technological progress. The uninterrupted gas supply device and method of the rotating unit of the oriented silicon steel ring furnace of the utility model, through the cooperation of the two docking devices, realizes the truly uninterrupted gas supply of the protective gas, can obtain excellent oriented silicon steel product performance, and replaces manual operation with fully automated operation, improves the working environment of workers, improves labor efficiency, and realizes unmanned operation with high operating efficiency and shorter switching process time, thereby improving the operating efficiency of the production line. It is also more in line with the industry and national requirements for high-quality development of "intelligence" and "unmanned".

[0078] The above embodiments are only for the purpose of illustrating the present invention, but not for limiting the present invention. A person skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. An uninterrupted gas supply device for a rotating unit of an annular furnace for oriented silicon steel, comprising a rotating trolley (5) and a protective gas supply docking device on the gas supply side, characterized in that: The rotating trolley (5) rotates around the center of the annular furnace. The rotating trolley is provided with a plurality of material positions (8) for placing steel coils. The angle between two adjacent material positions (8) is a first angle. The rotating trolley (5) is provided with a protective gas ring pipe (1) for supplying protective gas to the steel coils on the material positions (8). The rotating trolley (5) rotates one material position at the first angle each time. The top of the rotating trolley (5) is provided with a plurality of gas receiving side female joint assemblies (2) evenly arranged in the circumferential direction. The angle between two adjacent gas receiving side female joint assemblies (2) is a second angle. The gas receiving side female joint assembly (2) is provided with a female joint (2.1) and a first gas receiving side shut-off valve (2.2). The two are connected via a first flexible connection (2.3). The first gas receiving side shut-off valve (2.2) is connected to the protective gas ring pipe (1). The female joint (2.1) is fixedly arranged on a female joint base (2.4). The protective gas supply docking device on the gas supply side comprises a rotating central pier (6.1), a movable arm trolley (6), a gas supply side movable docking device (3) and a gas supply side fixed docking device (4). The rotating center pier (6.1) is fixedly mounted at the bottom of the sunken foundation (7), and a guide rail is provided on the top surface of the foundation (7); The movable arm of the movable arm trolley (6) is arranged horizontally, and the movable arm and the rotating center pier are arranged in an L shape. A wheel cooperating with the guide rail is arranged under the movable arm of the movable arm trolley; one end of the movable arm trolley (6) is rotated through the rotating shaft at the top end of the rotating center pier and the wheel cooperating with the guide rail; The air supply side mobile docking device (3) is arranged on the upper part of the mobile arm end. The male connector (3.1) on the air supply side mobile docking device for docking with the female connector (2.1) is fixedly mounted on the male connector base (3.10). The male connector (3.1) is connected to the outlet of the second shut-off valve (3.2). The air inlet side is connected to the sliding expansion joint (3.4) through the second soft connection (3.3). The sliding expansion joint (3.4) is connected to the air supply pipeline of the mobile docking device. The upper part of the mobile docking device (3) is provided with a driving Cylinder (3.9), one end of the driving cylinder is fixed on the base (3.11) of the mobile docking device on the air supply side, and the other end is connected to the male joint base (3.10). Under the action of the driving cylinder (3.9), the male joint base (3.10) can move forward and backward along the direction of the guide pin, wherein the guide pin 1 (3.5) and the guide pin 2 (3.6) are fixedly arranged on the base (3.11) of the mobile docking device on the air supply side, and are driven separately by the guide pin driving cylinder 1 (3.7) and the guide pin driving cylinder 2 (3.8): Wherein: when the air supply side mobile docking device (3) and the air receiving side female joint assembly (2) need to be docked, the air supply side mobile docking device (3) is stopped at the initial position by the movable arm trolley (6), and the air supply side mobile docking device (3) is roughly positioned and aligned with one of the air receiving side female joint assemblies (2). At this time, the guide pin 1 (3.5) and the guide pin 2 (3.6) are driven forward by the guide pin driving cylinder 1 (3.7) and the guide pin driving cylinder 2 (3.8) respectively, and inserted into the corresponding holes of the female joint base (2.4) for precise positioning, ensuring that the center of the female joint (2.1) and the male joint (3.1) are precisely aligned, and then the driving cylinder (3.9) drives the male joint (3.1) forward to dock with the female joint (2.1). After the docking is completed, the first shut-off valve (2.2) and the first soft connection (2.3) are automatically opened, and the protective gas passes through the docking device and the protective gas ring pipe (1); When the movable docking device (3) on the gas supply side needs to be disconnected from the female joint assembly (2) on the gas receiving side, the first shut-off valve (2.2) and the first flexible connection (2.3) are automatically closed to cut off the protective gas, and then the driving cylinder (3.9) drives the male joint (3.1) to retreat and disconnect from the female joint (2.1), and the guide pin 1 (3.5) and the guide pin 2 (3.6) are then driven backward by the guide pin driving cylinder 1 (3.7) and the guide pin driving cylinder 2 (3.8) respectively, and after exiting the corresponding hole of the female joint base (2.4), they stop at the original position; The structure and working principle of the air supply side fixed docking device (4) are the same as those of the air supply side mobile docking device (3). Wherein: the air supply side mobile docking device (3) is fixedly mounted on the mobile arm trolley (6), one end of the mobile arm trolley (6) is fixed to the center point of the annular furnace through a rotating center pier (6.1), and always rotates along the center point of the annular furnace; the mobile arm reduction motor (6.3) is fixedly mounted on the mobile arm trolley frame, and its output shaft is connected to the driving sprocket (6.5) through an electromagnetic clutch (6.4); the driving sprocket (6.5) is connected to the main driving wheel (6.7) through a transmission chain (6.6); and the main driving wheel (6.7) and the driven wheel (6.8) are mounted on the running tracks of the main driving wheel (6.9) and the driven wheel (6.10); When the movable arm trolley (6) needs to rotate, the movable arm reduction motor (6.3) is started, and the driving sprocket (6.5) is driven to rotate through the electromagnetic clutch (6.4) in the energized state, and then the main driving wheel is driven to rotate through the transmission chain (6.6); when the air supply side movable docking device (3) is docked with the air receiving side female joint assembly (2), the electromagnetic clutch (6.4) loses power and disengages, and the movable arm trolley (6) can passively rotate with the rotating trolley (5); The angle between the air supply side movable docking device (3) and the air supply side fixed docking device (4) is the third angle.

2. The uninterrupted gas supply device for the rotating unit of the oriented silicon steel annular furnace according to claim 1, characterized in that: The rotating trolley (5) rotates clockwise or counterclockwise.

3. The uninterrupted gas supply device for the rotating unit of the oriented silicon steel annular furnace according to claim 1, characterized in that: The first soft connection (2.3) can eliminate deviations caused by insufficient positioning accuracy and control accuracy during the docking process.

4. The uninterrupted gas supply device for the rotating unit of the oriented silicon steel annular furnace according to claim 1, characterized in that: The movable arm of the movable arm trolley (6) is arranged horizontally.

5. The uninterrupted gas supply device for the rotating unit of the oriented silicon steel annular furnace according to claim 1, characterized in that: The guide rails are configured as main driving wheel guide rails (6.9) and passive wheel guide rails (6.10), and the wheels are configured as driving wheels (6.7) and passive wheels (6.8).

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