Automatic opening and closing device for a gauge hole cover of a metallurgical furnace

Abstract

The utility model discloses a kind of metallurgical furnace detection hole cover automatic switching device, it is related to metallurgical auxiliary equipment field, including cylinder, connecting rod, detection hole cover, slide rail, detection ruler, detection hole, the cylinder is horizontally arranged, the piston end of cylinder is connected with connecting rod screw thread, the hole of the other end of connecting rod, the detection hole cover is circular, two connecting plates are symmetrically equipped in detection hole cover upper portion, connecting plate is equipped with two concentric bolt holes, bolt is connected two connecting plates and connecting rod, the slide rail is composed of two horizontal parallel two angle irons, and detection hole is contained between parallel line, detection hole cover can be slidably clamped in slide rail, track upper along with detection hole upper along flush. With the characteristics that detection hole cover automatic switching device does not affect traditional manual measurement melt liquid level data, for solving the problem that traditional melt liquid level manual measurement opens detection hole cover and exists high-temperature smoke fume and negative pressure unstable flame burning.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical auxiliary equipment, specifically an automatic opening and closing device for the measuring hole cover of a metallurgical furnace. Background Technology

[0002] The winch-driven gauging system is inexpensive and widely used in the metallurgical industry, serving as a key piece of equipment in smelting furnaces such as metallurgical furnaces, top-blown furnaces, submerged arc furnaces, and settling electric furnaces. The molten metal level in a metallurgical furnace is a crucial parameter for controlling flash smelting production, serving as the basis for adjusting production load and molten metal discharge time, and is also vital for furnace safety. Measuring the molten metal level requires opening the gauging hole cover; however, traditional manual measurement poses risks of high-temperature fumes and flame burns due to unstable negative pressure. This automatic gauging hole cover opening device does not interfere with traditional manual molten metal level measurements. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an automatic opening and closing device for the measuring hole cover of a metallurgical furnace. This device features automatic opening and closing of the measuring hole cover without affecting the traditional manual measurement of melt level data. It solves the problems of high-temperature flue gas suffocation and flame scorching when the negative pressure is unstable during the manual measurement of melt level.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: An automatic opening and closing device for a metallurgical furnace measuring hole cover includes a cylinder, a connecting rod, a measuring hole cover, a slide rail, a measuring rod, and a measuring hole. The cylinder is horizontally positioned, and its piston end is threadedly connected to the connecting rod. The other end of the connecting rod has a hole. The measuring hole cover is circular, and two connecting plates are symmetrically arranged on the upper part of the measuring hole cover. Each connecting plate has two concentric bolt holes, and bolts are used to connect the two connecting plates and the connecting rod. The slide rail is composed of two horizontally parallel angle irons, which contain the measuring hole between the parallel lines. The measuring hole cover can be slidably engaged in the slide rail, and the upper edge of the rail is flush with the upper edge of the measuring hole.

[0005] The beneficial effect of this utility model is that the piston cylinder is rigidly connected to the connecting rod by the end thread, and the other end of the connecting rod has a through hole that is concentric with the through holes on the connecting plates welded to both sides of the measuring hole cover. The rigid connection is completed by bolts, which ensures that the piston rod of the cylinder and the measuring hole cover move synchronously. When the measuring rod is about to enter the measuring hole, the solenoid valve is energized, and the piston cylinder of the cylinder retracts, and the measuring hole cover must move away from the measuring hole along the guide rail. When the measuring rod is fully immersed and leaves the measuring hole, the solenoid valve receives a limit signal and is de-energized, and the piston cylinder of the cylinder extends and the measuring hole cover fits and covers the measuring hole. Attached Figure Description

[0006] Figure 1 This is a schematic diagram showing the open state of the measuring hole cover of this utility model; Figure 2This is a schematic diagram of the measuring hole cover of this utility model in the closed state; Figure 3 This is a top view of the present invention; Figure 4 This is a partial enlarged view of the mechanical connection of the measuring hole cover of this utility model.

[0007] Reference numerals: 1. Cylinder; 2. Connecting rod; 3. Gauge hole cover; 301. Connecting plate; 302. Bolt; 4. Slide rail; 5. Gauge; 6. Gauge hole; 7. Metallurgical furnace; 8. High-temperature melt; 9. Solenoid valve. Detailed Implementation

[0008] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0009] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an automatic opening and closing device for a metallurgical furnace measuring hole cover is characterized by comprising a cylinder 1, a connecting rod 2, a measuring hole cover 3, a slide rail 4, a measuring rod 5, and a measuring hole 6. The cylinder 1 is horizontally arranged, and the piston end of the cylinder 1 is threadedly connected to the connecting rod 2. The other end of the connecting rod 2 has a hole. The measuring hole cover 3 is circular, and two connecting plates 301 are symmetrically arranged on the upper part of the measuring hole cover 3. The connecting plates 301 have two concentric bolt holes, and bolts 302 are used to connect the two connecting plates 301 and the connecting rod 2. The slide rail 4 is composed of two horizontally parallel angle irons, and the measuring hole 6 is contained between the parallel lines. The measuring hole cover 3 is slidably engaged in the slide rail 4, and the upper edge of the slide rail 4 is flush with the upper edge of the measuring hole 6.

[0010] In use, the cylinder 1 and slide rail 4 are rigidly fixed to the furnace top. The cylinder 1 drives the measuring hole cover 3 and determines the cylinder installation position. The slide rail supports and guides the measuring hole cover 3. The height of the upper edge of the guide rail is flush with the upper edge of the measuring hole to ensure a tight seal and smooth operation. The cylinder wall surface has two air inlets and outlets for connecting to the A and B ports of the solenoid valve 9. The compressed air flow at the rear end of the solenoid valve 9 when it is energized or de-energized drives the piston rod of the cylinder 2 to retract and extend, simultaneously driving the measuring hole cover 3 to complete the open and closed states along the slide rail 4. In order to ensure the synchronization of the cylinder piston rod movement and the measuring hole cover 3, a connecting rod 2 is used as an intermediate connection. One end has an internal thread for connecting the piston rod, and the other end has a through hole for connecting the measuring hole cover connecting plate with bolts 302 to achieve a rigid connection.

[0011] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic opening and closing device for a metallurgical furnace measuring hole cover, characterized in that, The system includes a cylinder (1), a connecting rod (2), a measuring hole cover (3), a slide rail (4), a measuring rod (5), and a measuring hole (6). The cylinder (1) is horizontally positioned, and the piston end of the cylinder (1) is threadedly connected to the connecting rod (2). The other end of the connecting rod (2) has a hole. The measuring hole cover (3) is circular, and two connecting plates (301) are symmetrically arranged on the upper part of the measuring hole cover (3). The connecting plates (301) have two concentric bolt holes. The two connecting plates (301) and the connecting rod (2) are connected by bolts (302). The slide rail (4) is composed of two horizontally parallel angle irons, and the measuring hole (6) is contained between the parallel lines. The measuring hole cover (3) can be slidably snapped into the slide rail (4). The upper edge of the slide rail (4) is flush with the upper edge of the measuring hole (6).

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