Self-rectification docking system and method for sampling and detecting atmosphere of silicon steel annular furnace

Abstract

The invention provides a self-rectification butt joint system and method for sampling and detecting the atmosphere of a silicon steel annular furnace, and the system comprises a plurality of groups of concave joint panel mechanisms which are uniformly arranged on a rotary platform of the annular furnace at intervals, and a plurality of groups of convex joint butt joint mechanisms which are arranged on fixed point positions on the ground, a concave joint integration device and a convex joint integration device for controlling on-off of an atmosphere detection pipeline are respectively arranged on the two-stage centering rectification device, a two-stage centering rectification mode is adopted, the two-stage centering rectification device is large in rectification range, high in precision and reliable in structure, the automation degree on a silicon steel annular furnace heat treatment line can be greatly improved, and the product quality is effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of industrial furnace heat treatment in the ferrous metallurgical industry, specifically to a self-correcting docking system and method for sampling and detecting the atmosphere of a silicon steel ring furnace. Background Technology

[0002] The Annular Annealing Furnace (ROF) for grain-oriented silicon steel is a crucial piece of equipment in high-end grain-oriented silicon steel projects. It is a key component ensuring the normal production of grain-oriented silicon steel and mainly consists of a furnace shell, inner shroud, trolleys, and a rotating mechanism. The furnace bottom comprises multiple trolleys arranged circumferentially. Steel coils are placed on these trolleys, and each coil is covered with a heat-resistant steel inner shroud. The bottom of the inner shroud is sealed with sand. Different protective gases of varying compositions are circulated within the shroud according to the furnace section. The protective gas components are primarily N2, H2, or HN. x Different process sections have different compositions, and the control system will automatically select the composition or flow rate according to the process curve.

[0003] To ensure real-time monitoring of the protective atmosphere at specific locations within each inner enclosure, the annular furnace is equipped with an atmosphere sampling and detection system. Atmosphere detection employs a fixed-level detection method, with the sampling connector consisting of paired male and female connectors. The annular furnace's rotating platform has 60 sets of female connector panel devices that rotate with the trolley. Four sets of male connector mating devices are located at fixed points on the ground, mating sequentially with the female connector panels as the trolley rotates. In other words, the four sets of male connector mating devices must be sequentially paired with the 60 sets of female connector panels.

[0004] The rotation of the bottom trolley of the annular furnace is driven by a hydraulic cylinder. However, its positioning accuracy is limited due to factors such as control precision, installation deviation, and furnace thermal expansion. Therefore, we need to design a docking device with automatic correction function to ensure that the male and female joints can automatically correct themselves during the docking process, thus eliminating accumulated deviations.

[0005] Research revealed several automatic pipe docking devices on existing silicon steel ring furnace heat treatment lines. However, their self-correcting capabilities are limited, and they cannot effectively handle angular displacement deviations. Manual intervention is frequently required when jamming occurs during equipment operation. Therefore, I have invented a large-scale self-correcting docking device to overcome the shortcomings of existing technologies. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a self-correcting docking system and method for sampling and detecting the atmosphere of a silicon steel ring furnace, thereby achieving self-correction during the docking process of the convex and concave joints under the condition of limited trolley positioning accuracy.

[0007] The embodiments of this application are implemented as follows: This application provides a self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace. It includes multiple sets of concave joint panel mechanisms evenly spaced on the ring furnace rotating platform and multiple sets of convex joint docking mechanisms installed at fixed points on the ground. The concave joint panel mechanism includes a guide rail base and a movable seat that slides up and down along the guide rail base. A primary guide sleeve and a concave joint integrated device are installed on the movable seat. The aforementioned convex joint docking mechanism includes a correction base and a centering trolley that moves laterally and rotates on the correction base. The top of the centering trolley is provided with a primary guide rod device and a convex joint integration device. The primary guide rod device is centered on the primary guide sleeve. The convex joint integration device and the concave joint integration device self-correct and dock. The bottom of the centering trolley is provided with casters that contact the correction base.

[0008] In some optional implementations, the primary guide rod device includes primary guide rods symmetrically arranged on both sides of the centering trolley, and a guide cylinder located at the rear of the centering trolley. The guide cylinder pushes the primary guide rod to move, and the primary guide rod is inserted into the primary guide sleeve.

[0009] In some alternative implementations, the concave connector integrated device includes an atmosphere detection concave connector, a secondary guide sleeve, and a concave connector mounting plate. The concave connector mounting plate is fastened to the center of the movable seat by fasteners. The atmosphere detection concave connector passes through the center of the concave connector mounting plate, and the secondary guide sleeves are symmetrically arranged on both sides of the atmosphere detection concave connector.

[0010] In some optional embodiments, the convex joint integrated device includes an atmosphere detection convex joint, a secondary guide rod, a convex joint mounting plate, and a centering slider assembly. The centering slider assembly includes a centering slider and a slider cylinder. The slider cylinder is installed at the tail of the centering slider to push the centering slider to move. The convex joint mounting plate is connected to the centering slider by fasteners. The atmosphere detection convex joint passes through the center of the convex joint mounting plate. The secondary guide rods are symmetrically arranged on both sides of the atmosphere detection convex joint, and the secondary guide rods are inserted into the secondary guide sleeves.

[0011] In some optional implementations, the correction base includes a base, a clamping block, a vibration-absorbing universal ball joint, and side supports. The clamping block is fixed on the base frame and is arranged corresponding to the front-rear direction of the centering trolley. The vibration-absorbing universal ball joint is installed on the left and right sides of the centering trolley via the side supports.

[0012] In some alternative embodiments, the guide rail base includes a bottom base and guide rail supports located on both sides of the bottom base. The guide rail supports are provided with slide rails, and the movable seat moves up and down along the slide rails. The bottom base is provided with a support platform to support the movable seat, and elastic elements are provided on both sides of the movable seat.

[0013] In some alternative implementations, there is a certain gap between the primary guide rod and the primary guide sleeve, and the secondary guide rod and the secondary guide sleeve are tightly fitted together.

[0014] In some alternative implementations, the vibration-absorbing omnidirectional ball includes an omnidirectional ball and a spring, wherein the omnidirectional ball is connected to the side support via the spring.

[0015] In some alternative embodiments, a disc spring assembly is provided between the convex joint mounting plate and the centering slide, and the disc spring assembly is sleeved on the fastener.

[0016] A method for a self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace, characterized in that... When the annular furnace completes a rotation of one material level, the guide cylinder first pushes the primary guide rod to engage with the primary guide sleeve. The primary guide sleeve is fixed on the movable seat, which moves and rotates within the gap range with the guide rail support, thereby controlling the deviation between the Z-axis direction and the rotational angular displacement direction around the Y-axis within a certain range. Driven by the universal wheels, the primary guide rod moves and rotates freely on the upper surface of the correction base, and is reset under the action of the vibration-absorbing universal ball, thereby controlling the deviation between the X-axis direction and the rotational angular displacement direction around the Z-axis within a certain range. The above process is the first-level correction, which reduces the initial large-range radial deviation S1 to a certain range. After the primary guide rod and the primary guide sleeve are connected, the centering cylinder pushes the centering slider to slide along the primary guide rod, so that the secondary guide rod on the concave and convex joint integrated device is connected with the secondary guide sleeve. The secondary guide rod and the secondary guide sleeve are tightly fitted, and its correction range is smaller than that of the primary correction. The convex joint mounting plate slides within a certain range of 360 degrees between the disc spring assembly to eliminate the remaining radial deviation S2 in the X-axis and Z-axis directions. At the same time, the disc spring assembly is freely compressed at various angles to eliminate the angular displacement deviation R1 around the X and Z axes. This process is the secondary correction.

[0017] The beneficial effects of this application are as follows: The self-correcting alignment system and method for sampling and detecting the atmosphere of a silicon steel ring furnace provided in this application adopts a two-stage alignment correction method: the first-stage correction aims to reduce the trolley positioning deviation to a certain range, which is accomplished by the concave joint panel device and the convex joint alignment device body structure; the second-stage correction is responsible for eliminating all remaining deviations, which is accomplished by the concave and convex joint integrated block; the self-correcting range is large, the accuracy is high, and the structure is reliable, which can greatly improve the automation level of the silicon steel ring furnace heat treatment line and effectively ensure product quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a layout diagram of the self-correcting docking system according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the recessed connector panel mechanism according to an embodiment of this application; Figure 3 This is a top view of the convex joint docking mechanism according to an embodiment of this application; Figure 4 This is a front view of the convex joint docking mechanism according to an embodiment of this application; Figure 5 This is a schematic diagram illustrating the correction principle of the concave and convex joints for atmosphere detection in an embodiment of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0024] like Figure 1 As shown, this invention provides a self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace. It includes multiple sets of concave joint panel mechanisms 1 evenly spaced on the ring furnace's rotating platform, and multiple sets of convex joint docking mechanisms 2 installed at fixed points on the ground. Each time the ring furnace rotates one material level, the convex joint docking mechanism docks with the concave joint panel mechanism once.

[0025] like Figure 2 As shown, the concave connector panel mechanism includes a guide rail base 11 and a movable seat 12 that slides up and down along the guide rail base. A primary guide sleeve 13 and a concave connector integrated device are installed on the movable seat. The concave connector integrated device includes an atmosphere detection concave connector 14, a secondary guide sleeve 15, and a concave connector mounting plate 16. The concave connector mounting plate is installed in the center of the movable seat by fasteners. The atmosphere detection concave connector passes through the center of the concave connector mounting plate. The secondary guide sleeves are symmetrically arranged on both sides of the atmosphere detection concave connector.

[0026] The guide rail base includes a bottom base 111 and guide rail supports 112 located on both sides of the bottom base. The guide rail supports are provided with slide rails, and the movable seat moves up and down along the slide rails. The bottom base is provided with a support platform to support the movable seat. The movable seat is provided with elastic elements 113 on both sides. There is a gap between the two sides of the movable seat and the guide rail supports, which allows it to rotate slightly. The movable seat is automatically reset by the elastic elements provided on both sides.

[0027] like Figure 3 , Figure 4 As shown, the convex joint docking mechanism includes a correction base 21 and a centering trolley 22 that moves and rotates on the correction base. The top of the centering trolley is provided with a primary guide rod device 23 and a convex joint integration device 24. The primary guide rod device is centered on the primary guide sleeve. The convex joint integration device and the concave joint integration device self-correct and dock. The bottom of the centering trolley is provided with casters 25 that contact the correction base.

[0028] Furthermore, the primary guide rod device includes primary guide rods 231 symmetrically arranged on both sides of the centering trolley, and a guide cylinder 232 located at the rear of the centering trolley. The guide cylinder pushes the primary guide rod to move, and the primary guide rod is inserted into the primary guide sleeve.

[0029] Furthermore, the convex joint integrated device includes an atmosphere detection convex joint 241, a secondary guide rod 242, a convex joint mounting plate 243, and a centering slider assembly. The centering slider assembly includes a centering slider 244 and a slider cylinder 245. The slider cylinder is installed at the tail of the centering slider to push the centering slider to move. The convex joint mounting plate is connected to the centering slider by fasteners. The atmosphere detection convex joint passes through the center of the convex joint mounting plate. The secondary guide rods are symmetrically arranged on both sides of the atmosphere detection convex joint, and the secondary guide rods are inserted into the secondary guide sleeves.

[0030] Furthermore, the correction base includes a base 211, a clamping block 212, a vibration-absorbing universal ball joint 213, and a side support 214. The clamping block is fixed on the base frame and is set in the front-rear direction of the trolley to prevent the trolley from tipping over. The vibration-absorbing universal ball joint is installed on the left and right sides of the trolley through the side support.

[0031] Furthermore, the vibration-absorbing omnidirectional ball joint includes an omnidirectional ball and a spring, with the omnidirectional ball connected to the side support via the spring. The vibration-absorbing omnidirectional ball joint combines the functions of an omnidirectional ball and a spring, effectively handling deviations in horizontal and angular displacement, and is responsible for automatically resetting the trolley's lateral movement and deflection.

[0032] The atmosphere detection male connector is fixed to the male connector mounting plate and moves in extension and retraction during the centering stroke; the atmosphere detection female connector is fixed to the female connector mounting plate and moves in a circular motion with the rotating platform of the annular furnace. The opening and closing of the gas path is controlled by the atmosphere detection female and male connectors. Both are equipped with spring mechanisms inside. The gas path opens when they are connected and automatically cuts off when they are disconnected.

[0033] Furthermore, there is a certain gap (1~3mm) between the first-stage guide rod and the first-stage guide sleeve to ensure that the first-stage guide post can be smoothly inserted into the guide sleeve when angular displacement deviation occurs; the second-stage guide rod and the second-stage guide sleeve are tightly fitted together.

[0034] Furthermore, a disc spring assembly 246 is provided between the convex joint mounting plate and the centering slide, and the disc spring assembly is sleeved on the fastener.

[0035] like Figure 5 As shown, the method of using the self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace includes the following: When the annular furnace completes a rotation of one material level, the guide cylinder first pushes the primary guide rod to engage with the primary guide sleeve. The primary guide sleeve is fixed on the movable seat, which moves and rotates within the gap range with the guide rail support, thereby controlling the deviation between the Z-axis direction and the rotational angular displacement direction around the Y-axis within a certain range. Driven by the universal wheels, the primary guide rod moves and rotates freely on the upper surface of the correction base, and is reset under the action of the vibration-absorbing universal ball, thereby controlling the deviation between the X-axis direction and the rotational angular displacement direction around the Z-axis within a certain range. The above process is the first-level correction, which reduces the initial large-range radial deviation S1 to a certain range.

[0036] After the primary guide rod and the primary guide sleeve are connected, the centering cylinder pushes the centering slider to slide along the primary guide rod, so that the secondary guide rod on the concave and convex joint integrated device is connected with the secondary guide sleeve. The secondary guide rod and the secondary guide sleeve are tightly fitted, and its correction range is smaller than that of the primary correction. The convex joint mounting plate slides within a certain range of 360 degrees between the disc spring assembly to eliminate the remaining radial deviation S2 in the X-axis and Z-axis directions. At the same time, the disc spring assembly is freely compressed at various angles to eliminate the angular displacement deviation R1 around the X and Z axes. This process is the secondary correction.

Claims

1. A self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace, comprising multiple sets of concave joint panel mechanisms evenly spaced on the rotating platform of the ring furnace, and multiple sets of convex joint docking mechanisms installed at fixed points on the ground, characterized in that... The recessed connector panel mechanism includes a guide rail base and a movable seat that slides up and down along the guide rail base. A primary guide sleeve and a recessed connector integrated device are installed on the movable seat. The aforementioned convex joint docking mechanism includes a correction base and a centering trolley that moves laterally and rotates on the correction base. The top of the centering trolley is provided with a primary guide rod device and a convex joint integration device. The primary guide rod device is centered on the primary guide sleeve. The convex joint integration device and the concave joint integration device self-correct and dock. The bottom of the centering trolley is provided with casters that contact the correction base.

2. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 1, characterized in that, The primary guide rod device includes primary guide rods symmetrically arranged on both sides of the centering trolley, and a guide cylinder located at the rear of the centering trolley. The guide cylinder pushes the primary guide rod to move, and the primary guide rod is inserted into the primary guide sleeve.

3. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 2, characterized in that, The aforementioned concave connector integrated device includes an atmosphere detection concave connector, a secondary guide sleeve, and a concave connector mounting plate. The concave connector mounting plate is installed at the center of the movable seat by fasteners. The atmosphere detection concave connector passes through the center of the concave connector mounting plate, and the secondary guide sleeve is symmetrically arranged on both sides of the atmosphere detection concave connector.

4. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 3, characterized in that, The aforementioned convex joint integrated device includes an atmosphere detection convex joint, a secondary guide rod, a convex joint mounting plate, and a centering slider assembly. The centering slider assembly includes a centering slider and a slider cylinder. The slider cylinder is installed at the tail of the centering slider to push the centering slider to move. The convex joint mounting plate is connected to the centering slider by fasteners. The atmosphere detection convex joint passes through the center of the convex joint mounting plate. The secondary guide rods are symmetrically arranged on both sides of the atmosphere detection convex joint, and the secondary guide rods are inserted into the secondary guide sleeves.

5. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 1 or 4, characterized in that, The correction base includes a base, a clamping block, a vibration-absorbing universal ball joint, and a side support. The clamping block is fixed on the base frame and is set in the front-rear direction corresponding to the centering trolley. The vibration-absorbing universal ball joint is installed on the left and right sides of the centering trolley through the side support.

6. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 4, characterized in that, The guide rail base includes a bottom base and guide rail supports located on both sides of the bottom base. The guide rail supports are provided with slide rails, and the movable seat moves up and down along the slide rails. The bottom base is provided with a support platform to support the movable seat, and elastic elements are provided on both sides of the movable seat.

7. The self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 6, characterized in that, There is a certain gap between the primary guide rod and the primary guide sleeve, and the secondary guide rod and the secondary guide sleeve are tightly fitted together.

8. The method for a self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 5 or 7, characterized in that, The vibration-absorbing omnidirectional ball includes an omnidirectional ball and a spring, and the omnidirectional ball is connected to the side support through the spring.

9. The method for a self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace according to claim 7, characterized in that, A disc spring assembly is provided between the convex joint mounting plate and the centering slide, and the disc spring assembly is sleeved on the fastener.

10. The method of using the self-correcting docking system for sampling and detecting the atmosphere of a silicon steel ring furnace as described in claim 9, characterized in that, When the annular furnace completes a rotation of one material level, the guide cylinder first pushes the primary guide rod to engage with the primary guide sleeve. The primary guide sleeve is fixed on the movable seat, which moves and rotates within the gap range with the guide rail support, thereby controlling the deviation between the Z-axis direction and the rotational angular displacement direction around the Y-axis within a certain range. Driven by the universal wheels, the primary guide rod moves and rotates freely on the upper surface of the correction base, and is reset under the action of the vibration-absorbing universal ball, thereby controlling the deviation between the X-axis direction and the rotational angular displacement direction around the Z-axis within a certain range. The above process is the first-level correction, which reduces the initial large-range radial deviation S1 to a certain range. After the primary guide rod and the primary guide sleeve are connected, the centering cylinder pushes the centering slider to slide along the primary guide rod, so that the secondary guide rod on the concave and convex joint integrated device is connected with the secondary guide sleeve. The secondary guide rod and the secondary guide sleeve are tightly fitted, and its correction range is smaller than that of the primary correction. The convex joint mounting plate slides within a certain range of 360 degrees between the disc spring assembly to eliminate the remaining radial deviation S2 in the X-axis and Z-axis directions. At the same time, the disc spring assembly is freely compressed at various angles to eliminate the angular displacement deviation R1 around the X and Z axes. This process is the secondary correction.

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