Environment-friendly and energy-saving quick cover-removing device for molten iron ladle

Abstract

The utility model discloses an iron water tank environmental protection energy -saving type quick -detachable cover device relates to iron water tank technical field, including the placement base, install the jar body on the placement base, the both sides installation of jar body have driven jar cover, install heat preservation mechanism on the jar body, the utility model discloses when needing to disassemble the cover body, first through handle to pull the first axle rod to the direction of being away from fixed pipe, overcome the elasticity of first spring and second spring, drive second axle rod, third axle rod synchronous movement, make first baffle column, second baffle column separate from the side constraint of arc block, the clearance between arc block and movable frame is inserted into the link axle, make arc block and movable frame inner wall extrude ball, force ball to shrink to the placement groove, arc block can be pulled out together with the cover body from the link axle at this moment, complete disassembly, realize arc block and movable frame's quick separation, and the whole unlocking process can be promoted.

Description

Technical Field

[0001] This utility model relates to the field of molten iron ladle technology, specifically to an environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladle. Background Technology

[0002] In the iron and steel metallurgy industry, molten iron ladles are core equipment for transporting and storing molten iron. The performance of their lidding devices directly affects the maintenance of molten iron temperature, dust control, and production efficiency. Currently, mainstream molten iron ladle lidding devices mostly adopt a design scheme of "rigid bolt fixing + integral insulation layer" to achieve the connection between the lid and the drive mechanism and to insulate the ladle body. However, in practical applications, due to structural design defects, several technical bottlenecks have gradually been exposed, forming a stark contrast with the technological progress achieved by this utility model. Specific problems are as follows:

[0003] Existing capping devices typically use 4-6 sets of high-strength bolts to rigidly connect the cap body to the moving frame, arc block, and other driving components. Due to the high temperature of the molten iron ladle's operating environment, the bolts are prone to heat deformation and corrosion, and slag accumulation at the ladle opening easily adheres to the connection points. This necessitates the use of tools such as gas cutters and wrenches to gradually clean and loosen the bolts during disassembly, which usually takes 4-6 hours per cap disassembly, resulting in low disassembly efficiency. This utility model, through a quick-release structure of "ball elastic contraction - pop-out fixing + shaft - stop column linkage limit," achieves rapid cap separation in seconds. It is an innovative solution to address the pain point of "cumbersome and time-consuming disassembly" in existing technologies, significantly improving maintenance efficiency.

[0004] The current insulation design of molten iron ladles has two major problems: First, the insulation layer structure is simple, mostly using a single layer of heavy refractory bricks or ordinary insulation cotton. This either results in a heavy self-weight (the insulation layer of a single ladle weighs over 1000kg), increasing the load on the ladle, or poor insulation effect, with the molten iron temperature dropping at a rate as high as 80-120℃ / hour. This leads to the need for an additional 30-50kg of standard coal / ton of molten iron in subsequent steelmaking processes to raise the temperature of the molten iron. Second, the insulation layer is mostly welded to the ladle body or integrally cast and fixed. Once local wear or cracking occurs, the entire insulation layer needs to be removed and rebuilt. The removal and reconstruction cycle can take as long as 72-96 hours. During this period, the molten iron ladle cannot be put into use, which seriously affects the continuity of production. In addition, the insulation layer of some devices is not tightly attached to the ladle body, with a gap of 5-8mm between the ladle body and the insulation layer. Heat can easily be lost through the gap, further aggravating energy loss. This utility model adopts a gradient insulation layer design of "alumina silicate insulation cotton and lightweight refractory castable" and a modular clamp fixing structure. It not only controls the temperature drop of molten iron at an appropriate temperature, but also enables the rapid replacement of insulation modules. This is a targeted improvement on the shortcomings of existing insulation technology, which is "high energy consumption and difficult maintenance". It significantly reduces energy consumption and shortens the maintenance cycle of insulation layer. Utility Model Content

[0005] The purpose of this utility model is to provide an environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladle includes a placement base, a ladle body mounted on the placement base, drive lids mounted on both sides of the ladle body, and a heat preservation mechanism mounted on the ladle body.

[0008] The drive can cover includes a support plate, which is fixedly connected to the surface of the base. A connecting block is fixedly connected to one side of the support plate, and a cylinder is movably connected to the connecting block. A movable frame is installed on the telescopic end of the cylinder, and the movable frame is movably connected to the support plate. A quick-release component is provided at one end of the movable frame, and an arc-shaped block is connected through the quick-release component. A cover body is fixedly connected to one end of the arc-shaped block.

[0009] A further improvement of the present invention is that the quick-release component includes a fixing tube, one end of which is fixedly connected to a connecting shaft, and the connecting shaft passes through and connects the movable frame and the arc-shaped block.

[0010] A further improvement of this utility model is that: a first shaft is movably connected inside the fixed tube, a first spring is sleeved on the surface of the first shaft, a circular pressure plate is provided at one end of the first spring, a second spring is provided on the lower side of the circular pressure plate, the second spring is sleeved on the first shaft, and a handle is fixedly connected to one end of the first shaft. When it is necessary to disassemble the cover, the first shaft is first pulled away from the fixed tube by the handle to overcome the elastic force of the first spring and the second spring.

[0011] A further improvement of the present invention is that: a second shaft is fixedly connected to one end of the first shaft, a third shaft is fixedly connected to the bottom end of the second shaft, the second shaft is movably connected inside the connecting shaft, and a second stop post and a first stop post are fixedly connected to one end of the third shaft respectively. The second shaft and the third shaft move synchronously, so that the first stop post and the second stop post are freed from the side constraint of the arc block.

[0012] A further improvement of this utility model is that: a placement groove is provided at one end of the connecting shaft, and a ball is movably connected inside the placement groove. The connecting shaft is inserted into the gap between the arc-shaped block and the moving frame, so that the arc-shaped block and the inner wall of the moving frame squeeze the ball, forcing the ball to retract into the placement groove. At this time, the arc-shaped block together with the cover can be pulled out from the connecting shaft.

[0013] A further improvement of this utility model is that the insulation mechanism includes a mounting clamp, which is fitted onto the surface of the tank. An insulation layer is fixedly connected to the mounting clamp, and a connecting plate is fixedly connected to one end of the mounting clamp. A fixing bolt is threaded between the connecting plates. The insulation mechanism tightly fixes the insulation layer to the surface of the tank through the mounting clamp. The aluminum silicate insulation cotton used in the insulation layer has excellent heat insulation performance and can effectively prevent the heat of the molten iron inside the tank from being lost to the outside through the tank wall.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides an environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles. When the lid needs to be removed, the first shaft is pulled away from the fixed tube by the handle to overcome the elastic force of the first and second springs, causing the second and third shafts to move synchronously. This causes the first and second stop posts to disengage from the side constraints of the arc-shaped block. The connecting shaft is inserted into the gap between the arc-shaped block and the moving frame, causing the arc-shaped block and the inner wall of the moving frame to squeeze the ball bearings, forcing the ball bearings to retract into the placement groove. At this time, the arc-shaped block and the lid can be pulled out from the connecting shaft to complete the disassembly. This achieves rapid separation of the arc-shaped block and the moving frame, improving the entire unlocking process and enabling rapid disassembly of the lid.

[0016] 2. This utility model provides an environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles. It adopts a gradient insulation layer design of "aluminum silicate insulation cotton and lightweight refractory castable" and a modular clamp fixing structure. It not only controls the temperature drop of molten iron at an appropriate temperature, but also realizes the quick replacement of insulation modules. It is a targeted improvement on the defects of existing insulation technology of "high energy consumption and difficult maintenance", which significantly reduces energy consumption and shortens the maintenance cycle of insulation layer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the drive can lid of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the quick-release component of this utility model;

[0020] Figure 4 This is a schematic diagram of the thermal insulation mechanism of this utility model.

[0021] In the diagram: 1. Placement base; 2. Tank body; 3. Drive tank cover; 30. Support plate; 31. Connecting block; 32. Cylinder; 33. Moving frame; 34. Cover; 35. Arc-shaped block; 36. Quick release piece; 360. Fixing tube; 361. First shaft; 362. Handle; 363. First spring; 364. Circular pressure plate; 366. Second shaft; 365. Second spring; 367. Placement groove; 368. Ball bearing; 369. Connecting shaft; 399. Third shaft; 391. First stop; 392. Second stop; 4. Insulation mechanism; 40. Mounting clamp; 41. Insulation layer; 42. Fixing bolt; 43. Connecting plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to embodiments:

[0023] Example 1

[0024] like Figure 1-4 As shown, this utility model provides an environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles, including a base 1, a ladle body 2 mounted on the base 1, drive lids 3 mounted on both sides of the ladle body 2, and a heat preservation mechanism 4 mounted on the ladle body 2. The drive lid 3 includes a support plate 30, which is fixedly connected to the surface of the base 1. A connecting block 31 is fixedly connected to one side of the support plate 30. A cylinder 32 is movably connected to the connecting block 31. A movable frame 33 is mounted on the telescopic end of the cylinder 32. The movable frame 33 is movably connected to the support plate 30. A quick-release component 36 is provided at one end of the movable frame 33. An arc-shaped block 35 is connected through the quick-release component 36. A lid body 34 is fixedly connected to one end of the arc-shaped block 35. The quick-release component 36 includes a fixing tube 360, and a connecting shaft 369 is fixedly connected to one end of the fixing tube 360. The connecting shaft 369 is connected through the movable frame 33 and the arc-shaped block 35.

[0025] Specifically, a connecting block 31 is welded to one side of the support plate 30. A hole adapted to the bottom pin of the cylinder 32 is opened on the connecting block 31. The bottom pin of the cylinder 32 is inserted into the hole, and the cylinder 32 and the connecting block 31 are movably connected by clearance fit, so that the cylinder 32 can rotate flexibly around the pin. The movable frame 33 is installed on the support plate 30 by sliding fit. A slide rail adapted to the movable frame 33 is preset on the support plate 30 to ensure that the movable frame 33 can slide smoothly along the slide rail. The telescopic end of the cylinder 32 is connected to the movable frame 33 by a pin, so that the cylinder 32 can drive the movable frame 33 to move along the slide rail when it telescopic.

[0026] When cylinder 32 is activated, its telescopic end extends, pushing the moving frame 33 to move along the slide rail on the support plate 30 towards the tank 2. During the movement of the moving frame 33, the arc-shaped block 35 rotates, which in turn moves the cover 34 towards the opening of the tank 2 until the cover 34 completely covers the opening of the tank 2, completing the closing operation of the cover 34. During this process, the closing speed of the cover 34 can be controlled by adjusting the telescopic speed of cylinder 32 to avoid violent collision between the cover 34 and the tank 2.

[0027] Example 2

[0028] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a first shaft 361 is movably connected inside the fixed tube 360, a first spring 363 is sleeved on the surface of the first shaft 361, a circular pressure plate 364 is provided at one end of the first spring 363, a second spring 365 is provided on the lower side of the circular pressure plate 364, the second spring 365 is sleeved on the first shaft 361, a handle 362 is fixedly connected to one end of the first shaft 361, a second shaft 366 is fixedly connected to one end of the first shaft 361, and the bottom end of the second shaft 366 is fixed. A third shaft 399 is connected, and a second shaft 366 is movably connected inside the connecting shaft 369. A second stop 392 and a first stop 391 are fixedly connected to one end of the third shaft 399. A placement groove 367 is opened at one end of the connecting shaft 369. A ball bearing 368 is movably connected inside the placement groove 367. The heat preservation mechanism 4 includes a mounting clamp 40, which is sleeved on the surface of the tank body 2. A heat preservation layer 41 is fixedly connected to the mounting clamp 40. A connecting plate 43 is fixedly connected to one end of the mounting clamp 40. A fixing bolt 42 is threaded between the connecting plates 43.

[0029] Specifically, when it is necessary to disassemble the cover 34, first pull the first shaft 361 away from the fixed tube 360 ​​by the handle 362 to overcome the elastic force of the first spring 363 and the second spring 365, and drive the second shaft 366 and the third shaft 399 to move synchronously, so that the first stop 391 and the second stop 392 are freed from the side constraint of the arc block 35. The connecting shaft 369 is inserted into the gap between the arc block 35 and the moving frame 33, so that the arc block 35 and the inner wall of the moving frame 33 squeeze the ball 368, forcing the ball 368 to retract into the placement groove 367. At this time, the arc block 35 together with the cover 34 can be pulled out from the connecting shaft 369 to complete the disassembly.

[0030] When the connecting shaft 369 completely penetrates the through hole of the arc block 35, the placement groove 367 where the ball 368 is located is freed from the constraint of the hole wall. The elastic pad rebounds and pushes the ball 368 out of the placement groove 367, exposing the outer wall of the connecting shaft 369. At the same time, the other side of the ball 368 fits against the end face of the through hole of the moving frame 33, forming a double limit of "ball, groove, and end face", which initially fixes the arc block 35 and the moving frame 33, preventing them from moving along the axial direction of the connecting shaft 369.

[0031] The insulation mechanism 4 secures the insulation layer 41 tightly to the surface of the tank body 2 using clamps 40. The aluminum silicate insulation cotton used in the insulation layer 41 has excellent heat insulation properties, effectively preventing heat loss from the molten iron inside the tank body 2 through the tank body 2 wall. The lightweight refractory castable layer further enhances the insulation effect, while also improving the high-temperature resistance and structural strength of the insulation layer 41, preventing damage to the insulation layer 41 under high-temperature environments. Through the dual insulation effect of the insulation layer 41, the rate of temperature drop of the molten iron inside the tank body 2 is significantly slowed down, reducing heat loss during transportation and storage, achieving energy conservation, and also preventing the subsequent steelmaking process from being affected by excessively low molten iron temperatures.

[0032] The working principle of this environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles will be explained in detail below.

[0033] like Figure 1-4 As shown, when it is necessary to disassemble the cover 34, firstly, pull the first shaft 361 away from the fixed tube 360 ​​using the handle 362. This overcomes the elastic force of the first spring 363 and the second spring 365, causing the second shaft 366 and the third shaft 399 to move synchronously. This allows the first stop 391 and the second stop 392 to disengage from the side constraint of the arc-shaped block 35. The connecting shaft 369 is then inserted into the gap between the arc-shaped block 35 and the moving frame 33, causing the arc-shaped block 35 and the inner wall of the moving frame 33 to press the ball bearing 368, forcing the ball bearing 368 to retract to its resting position. Inside the groove 367, the arc-shaped block 35, along with the cover 34, can be pulled out from the connecting shaft 369 to complete disassembly. The insulation mechanism 4 uses mounting clamps 40 to tightly fix the insulation layer 41 to the surface of the tank 2. The aluminum silicate insulation cotton used in the insulation layer 41 has excellent heat insulation performance, which can effectively prevent the heat of the molten iron inside the tank 2 from being lost outward through the tank 2 wall. The lightweight refractory castable layer further enhances the insulation effect, while improving the high temperature resistance and structural strength of the insulation layer 41, preventing the insulation layer 41 from being damaged in high temperature environments. Through the dual insulation effect of the insulation layer 41, the rate of temperature drop of the molten iron inside the tank 2 is significantly slowed down, reducing heat loss of the molten iron during transportation and storage, achieving the purpose of energy saving, and also avoiding the impact of excessively low molten iron temperature on subsequent steelmaking processes.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles, comprising a base (1), characterized in that: A tank (2) is installed on the placement base (1), and a drive tank cover (3) is installed on both sides of the tank (2). A heat preservation mechanism (4) is installed on the tank (2). The drive can cover (3) includes a support plate (30), which is fixedly connected to the surface of the base (1). A connecting block (31) is fixedly connected to one side of the support plate (30). A cylinder (32) is movably connected to the connecting block (31). A movable frame (33) is installed at the telescopic end of the cylinder (32). The movable frame (33) is movably connected to the support plate (30). A quick-release piece (36) is provided at one end of the movable frame (33). An arc-shaped block (35) is connected through the quick-release piece (36). A cover body (34) is fixedly connected to one end of the arc-shaped block (35).

2. The environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles according to claim 1, characterized in that: The quick-release component (36) includes a fixing tube (360), one end of which is fixedly connected to a connecting shaft (369), which is connected through the movable frame (33) and the arc-shaped block (35).

3. The environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles according to claim 2, characterized in that: The fixed tube (360) is internally connected to a first shaft (361), and a first spring (363) is sleeved on the surface of the first shaft (361). A circular pressure plate (364) is provided at one end of the first spring (363), and a second spring (365) is provided on the lower side of the circular pressure plate (364). The second spring (365) is sleeved on the first shaft (361), and a handle (362) is fixedly connected to one end of the first shaft (361).

4. The environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles according to claim 3, characterized in that: One end of the first shaft (361) is fixedly connected to a second shaft (366), and the bottom end of the second shaft (366) is fixedly connected to a third shaft (399). The second shaft (366) is movably connected inside the connecting shaft (369), and one end of the third shaft (399) is fixedly connected to a second stop (392) and a first stop (391).

5. The environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles according to claim 4, characterized in that: One end of the connecting shaft (369) is provided with a placement groove (367), and a ball bearing (368) is movably connected inside the placement groove (367).

6. The environmentally friendly and energy-saving quick-release lid-adding device for molten iron ladles according to claim 1, characterized in that: The heat preservation mechanism (4) includes a mounting clamp (40), which is fitted onto the surface of the tank body (2). A heat preservation layer (41) is fixedly connected to the mounting clamp (40), and a connecting plate (43) is fixedly connected to one end of the mounting clamp (40). A fixing bolt (42) is threaded between the connecting plates (43).

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