Industrial silicon plant electrode lifting control device and system thereof

Abstract

The utility model belongs to the technical field of metallurgy and energy, and particularly relates to an industrial silicon plant electrode lifting control device and a system thereof, which comprise a workbench, an oil cylinder is assembled and connected on the lower side of the workbench, an output end of the oil cylinder is connected with an electrode, a guide mechanism is assembled and connected on the side edge of the electrode, and the guide mechanism comprises three sliding chutes. A sliding frame is slidably connected into the sliding groove, limiting plates located on the upper side and the lower side of the electrode are arranged in the sliding frame, the limiting plates stretch out of the sliding frame and make contact with the upper side and the lower side of the electrode, and the limiting plates and the output end face of the oil cylinder move synchronously. According to the utility model, the guide mechanism is arranged on the side edge of the electrode, so that the electrode can be kept stable in the up-and-down moving process.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgy and energy technology, and specifically relates to an electrode lifting control device for industrial silicon plants. Background Technology

[0002] Industrial silicon, also known as quasi-metallic silicon, is a commercial name that emerged in the mid-1960s. Metallic silicon is a product smelted from silica and carbonaceous reducing agents in an electric arc furnace. Its main component, silicon, contains approximately 98% silicon, with the remaining impurities being iron, aluminum, calcium, etc. It is classified into various specifications depending on its applications. Byproducts of quasi-metallic silicon include microsilica powder, edge-skin silicon, black-skin silicon, and metallic silicon slag. Microsilica powder, also known as silica fume, is widely used in refractory materials and the concrete industry. During the operation of an industrial silicon electric arc furnace, electrode lifting control is crucial to the entire production process. Generally, electrode lifting is controlled by hydraulic cylinders, but the electrodes are prone to swaying during lifting, and there is a lack of appropriate limiting devices. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an electrode lifting control device for industrial silicon plants to solve the problems mentioned in the background art.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0005] An electrode lifting control device for an industrial silicon plant includes a worktable. A hydraulic cylinder is mounted and connected to the lower side of the worktable. An electrode is connected to the output end of the hydraulic cylinder. A guide mechanism is mounted and connected to the side of the electrode. The guide mechanism includes three sliding grooves. A sliding frame is slidably connected in the sliding grooves. Limiting plates located on the upper and lower sides of the electrode are provided in the sliding frames. The limiting plates extend out of the sliding frames and contact the upper and lower sides of the electrode. The limiting plates move synchronously with the output end face of the hydraulic cylinder.

[0006] Preferably, a spring is provided between the limiting plate and the sliding frame, and the spring is located between the bottom side of the sliding frame and the limiting plate.

[0007] Preferably, an assembly plate is fixedly connected to the upper side of the slide, and a limiting strip passing through the sliding frame is fixedly connected between the assembly plate and the worktable.

[0008] Preferably, the three upper limiting plates are connected by a connecting member, and the three lower limiting plates are fixedly connected to the oil cylinder. The middle part of the connecting member is a circular block, and the edge of the circular block is fixedly connected to the limiting plate by a connecting plate.

[0009] This utility model also provides an electrode lifting control system for an industrial silicon plant, which further includes: a distributed control system cabinet and a relay module located in the distributed control cabinet. A 2.2μF capacitor module is connected in parallel at both ends of the relay module. The capacitor module is used to absorb excess current generated when the contacts of the relay module release current. The relay module is connected to a solenoid valve that controls the lifting of the hydraulic cylinder.

[0010] Preferably, it also includes an emergency stop control module, wherein a switching element is provided between the emergency stop control module and the power supply line of the solenoid valve. When an emergency stop signal is received, the switching element can quickly cut off the power supply to realize the emergency stop of electrode lifting and lowering. The emergency stop control module is connected to a computer operating terminal through a communication cable to ensure the timeliness and accuracy of signal transmission.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This invention uses limiting plates on the upper and lower end faces of the electrode, and a hydraulic cylinder to move the electrode. Under the guidance of the guide mechanism, the electrode moves up and down, ensuring stable lifting and lowering. At the same time, this device facilitates the replacement of the electrode.

[0013] In distributed control systems, connecting a 2.2μF capacitor in parallel across the relays can significantly reduce relay contact wear, extend relay lifespan, and reduce costs and production interruptions caused by frequent relay replacements.

[0014] In a distributed control system, by connecting the power supply lines of the lifting solenoid valves, when an emergency stop signal is received from the computer, the power supply to the solenoid valves can be quickly cut off, causing the electrodes to stop lifting and lowering. This prevents the electrodes from becoming uncontrollable due to abnormal conditions, ensuring the safety and stability of the production process. Attached Figure Description

[0015] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 This is a schematic diagram of the structure of an electrode lifting control device for an industrial silicon plant according to the present invention.

[0017] Figure 2 This is a schematic diagram of the electrode assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lower structure of an electrode lifting control device for an industrial silicon plant according to the present invention.

[0019] Figure 4 This is a schematic diagram of the guiding mechanism structure of this utility model;

[0020] Figure 5This is a schematic diagram of a distributed control system.

[0021] The symbols for the main components are explained below:

[0022] Workbench 1;

[0023] Hydraulic cylinder 2; assembly plate 3, limit strip 31, electrode 4;

[0024] Guide mechanism 5, slide 51, sliding frame 52, limiting plate 53, spring 54, connector 55, circular block 551, connecting plate 552;

[0025] 61. Relay module; 62. Capacitor module; 63. Solenoid valve; 64. Emergency stop control module; 65. Switching element; 66. Computer operation terminal. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1: As Figure 1-4 As shown, an electrode lifting control device for an industrial silicon plant includes a workbench 1. A hydraulic cylinder 2 is mounted and connected to the lower side of the workbench 1. An electrode 4 is connected to the output end of the hydraulic cylinder 2. A guide mechanism 5 is mounted and connected to the side of the electrode 4. The guide mechanism 5 includes three sliding grooves 51. A sliding frame 52 is slidably connected in the sliding grooves 51. Limiting plates 53 located on the upper and lower sides of the electrode 4 are provided in the sliding frame 52. The limiting plates 53 extend out of the sliding frame 52 and contact the upper and lower sides of the electrode 4. The limiting plates 53 move synchronously with the output end face of the hydraulic cylinder 2.

[0028] Using the technical solution of this embodiment, the cylinder 2 drives the electrode 4 to move up and down. Because the electrode 4 is unstable when the cylinder 2 drives the electrode 4 to move up and down, the guide mechanism 5 is installed on the side of the electrode 4 to stabilize the electrode 4 during the up and down movement. The sliding frame 52 slides in the slide groove 51 and the upper and lower sides of the sliding frame 52 are fixed. The limiting plate 53 moves up and down along the slide groove 51 and positions the upper and lower sides of the electrode 4 through the limiting plate 53, thereby realizing the up and down movement of the cylinder 2 under the restriction of the slide groove 51.

[0029] Referring to the figure: A spring 54 is provided between the limiting plate 53 and the sliding frame 52. The spring 54 is located between the bottom side of the sliding frame 52 and the limiting plate 53. In this embodiment, by adding a spring 54 between the electrode 4 and the bottom side of the sliding frame 52, the limiting plate 53 can press against the electrode 4. At the same time, by retracting the spring 54, it is convenient to replace the electrode 4.

[0030] Referring to the figure: An assembly plate 3 is fixedly connected to the upper side of the slide groove 51, and a limiting strip 31 passing through the sliding frame 52 is fixedly connected between the assembly plate 3 and the worktable 1. In this embodiment, the assembly plate 3 is used to fix the upper end of the slide groove 51, so that the relative positions of the three slide grooves 51 are fixed, and the limiting strip 31 restricts the sliding frame 52 from sliding within the slide groove 51.

[0031] Referring to the diagram: A connecting piece 55 connects the three upper limiting plates 53, and the three lower limiting plates 53 are fixedly connected to the hydraulic cylinder 2. The connecting piece 55 has a circular block 551 in the center, and a connecting plate 552 is fixedly connected between the edge of the circular block 551 and the limiting plates 53. In this embodiment, the three limiting plates 53 are fixed by the connecting piece 55, allowing the three limiting plates 53 to move simultaneously.

[0032] Example 2: Refer to Figure 5 A distributed control system includes any of the aforementioned industrial silicon plant electrode lifting control devices, and further includes: a distributed control system cabinet and a relay module 61 located within the distributed control cabinet. A 2.2μF capacitor module 62 is connected in parallel across the two ends of the relay module 61. The capacitor module 62 is used to absorb excess current generated when the contacts of the relay module 61 release current. The relay module 61 is connected to a solenoid valve 63 that controls the lifting of the hydraulic cylinder 2. In this embodiment, according to the principle of resistance-capacitance absorption, when the contacts of the relay module 61 release current, the capacitor module 62 can absorb excess current generated due to current lag. Specifically, at the instant the circuit is connected and disconnected, the capacitor can store and release electrical energy, thereby effectively reducing the rate of change of current through the relay contacts, and thus reducing the generation of electric arcs. This can significantly reduce the wear of the relay contacts, extend the service life of the relay module 61, and reduce the cost and production interruption problems caused by frequent replacement of the relay module 61. In specific operation, the position of the relay module 61 for electrode lifting in the distributed control system cabinet is first determined in the circuit. A 2.2μF capacitor module 62 is connected in parallel across the two ends of the relay module 61. When installing the capacitor, ensure that the withstand voltage of capacitor module 62 meets the circuit voltage requirements and that the connection is secure to avoid loose connections. After connecting capacitor module 62, test the entire distributed control system. Simulate the operation of relay module 61 contacts releasing current and use professional electrical testing equipment to detect the current and voltage changes at the contacts to verify whether capacitor module 62 effectively reduces arc generation and contact wear.

[0033] Example 3: Refer to Figure 5A distributed control system further includes an emergency stop control module 64. A switching element 65 is installed between the emergency stop control module 64 and the power supply line of the solenoid valve 63. When an emergency stop signal is received, the switching element 65 can quickly cut off the power supply, realizing an emergency stop of electrode lifting and lowering. The emergency stop control module 64 is connected to a computer operating terminal 66 via a communication cable to ensure the timeliness and accuracy of signal transmission. In this embodiment, an emergency stop function for electrode lifting and lowering is added. When the electrode experiences a power supply or program malfunction, the operator can issue a command through the computer to de-energize the solenoid valve 63 that controls the lifting and lowering of the electrode 4. The principle behind this emergency stop function is the addition of an emergency stop control module 64 connected to the computer operating terminal 66 in the control system. This emergency stop control module 64 is connected to the power supply line of the solenoid valve 63. When it receives an emergency stop signal from the computer, it can quickly cut off the power supply to the solenoid valve, stopping the electrode lifting and lowering, preventing uncontrolled electrode lifting and lowering due to abnormal conditions, and ensuring the safety and stability of the production process. In practical operation, the emergency stop control module 64 is integrated into the existing electrode lifting control circuit. The emergency stop control module 64 is connected to the computer operating terminal 66 via a reliable communication line to ensure timely and accurate signal transmission. The emergency stop control module 64 is programmed to accurately recognize emergency stop commands issued by the computer. A suitable switching element 65 is installed between the emergency stop control module 64 and the power supply line of the solenoid valve 63. When an emergency stop signal is received, the switching element 65 can quickly cut off the power supply, achieving an emergency stop for electrode lifting. Simultaneously, the emergency stop function is tested periodically to simulate power supply and program anomalies, checking the response speed and reliability of the emergency stop function.

[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A device for controlling the lifting of an electrode in a silicon plant, comprising a table (1), characterized in that: The lower side of the workbench (1) is equipped with an oil cylinder (2), the output end of the oil cylinder (2) is connected with an electrode (4), the side edge of the electrode (4) is equipped with a guide mechanism (5), the guide mechanism (5) comprises three sliding grooves (51), the sliding grooves (51) are slidably connected with sliding frames (52), the sliding frames (52) are provided with limiting plates (53) on the upper and lower sides of the electrode (4), the limiting plates (53) extend out of the sliding frames (52) and contact the upper and lower sides of the electrode (4), the limiting plates (53) move synchronously with the output end face of the oil cylinder (2).

2. An electrode lifting control device for an industrial silicon plant as claimed in claim 1, characterized in that: The limiting plates (53) and the sliding frames (52) are provided with springs (54) between them, and the springs (54) are located between the bottom side of the sliding frame (52) and the limiting plate (53).

3. An electrode lifting control device for an industrial silicon plant as claimed in claim 2, characterized in that: The upper side of the sliding groove (51) is fixedly connected with an assembly plate (3), and the assembly plate (3) is fixedly connected with a limiting strip (31) penetrating through the sliding frame (52) between the workbench (1).

4. An electrode lifting control device for an industrial silicon plant as claimed in claim 2, wherein: The three limiting plates (53) on the upper side are connected with connecting pieces (55), and the three limiting plates (53) on the lower side are fixedly connected with the oil cylinder (2), the middle part of the connecting piece (55) is a circular block (551), and the edge of the circular block (551) is fixedly connected with a connecting plate (552) between the limiting plate (53).

5. An electrode lifting control system for an industrial silicon plant for implementing the control device of any one of claims 1-4, characterized by: A cabinet of a distributed control system and a relay module (61) in the cabinet of the distributed control system are included, two ends of the relay module (61) are connected in parallel with a capacitor module (62) of 2.2 μF, the capacitor module (62) is used for absorbing excess current generated when a contact of the relay module (61) releases current, and the relay module (61) is connected with a solenoid valve (63) for controlling lifting of the oil cylinder (2).

6. An industrial silicon plant electrode lift control system as claimed in claim 5, characterized by: An emergency stop control module (64) is further included, a switching element (65) is arranged between the emergency stop control module (64) and a power supply circuit of the solenoid valve (63), when an emergency stop signal is transmitted, the switching element (65) can quickly cut off power supply, emergency stop of electrode lifting is realized, the emergency stop control module (64) is connected with a computer operation end (66) through a communication cable, and timeliness and accuracy of signal transmission are ensured.

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