A safe and precise device for removing cold steel from a furnace mouth

Abstract

The utility model relates to a kind of safe accurate furnace mouth clean cold steel device in the field of furnace mouth cleaning, including mobile fireproof plate and mobile guide car.Observation window is arranged on mobile fireproof plate to facilitate observing the situation in furnace, and oxygen blowing pipe is inserted in through groove and is moved up and down by limiting plate, first screw rod, threaded sleeve, first connecting piece and the like structure realization, mobile guide car is supported on the cooperation of stem, second connecting piece, support ring, compression ring and second screw rod, and oxygen blowing pipe can be extruded and positioned, and after being positioned, oxygen blowing pipe can be moved up and down in the way of rocking rod with the position as pivot, cooperate mobile guide car with mobile fireproof plate, so that oxygen blowing pipe can be cleaned accurately up and down in furnace mouth, improve cleaning effect and efficiency.Oxygen blowing pipe outer wall is provided with scale line, after second screw rod fixes oxygen blowing pipe, the depth of oxygen blowing pipe into furnace mouth can be calculated by scale line.

Description

Technical Field

[0001] This utility model relates to the field of furnace mouth cleaning, specifically to a safe and precise furnace mouth cooling steel device. Background Technology

[0002] In the metallurgical industry, cleaning cold steel from the furnace opening is a critical and frequent operation. During long-term production, cold steel tends to accumulate at the furnace opening due to factors such as the splashing and cooling of high-temperature molten metal and various chemical reactions. This cold steel not only affects the normal opening and closing of the furnace opening and reduces production efficiency, but may also pose a potential threat to the safe operation of the furnace. Therefore, specialized equipment is needed to achieve safe and precise cleaning.

[0003] Currently, existing furnace mouth cold steel cleaning devices are relatively simple in structure and have limited functionality. Some devices make it difficult for operators to observe the furnace mouth interior in real time, resulting in a lack of intuitiveness in the cleaning process and increasing the randomness of the cleaning. While some devices are equipped with oxygen blowing pipes, the movement of these pipes in existing cleaning devices is limited to a single method, making it difficult to achieve precise cleaning from all directions. This results in cleaning efficiency and quality that cannot meet actual production needs, affecting the safety and effectiveness of furnace mouth cleaning operations. Furthermore, accurately determining the depth of the oxygen blowing pipe entering the furnace mouth is difficult; operators can only rely on experience to make approximate judgments, which increases the randomness and uncertainty of the cleaning work. Therefore, those skilled in the art have provided a safe and precise furnace mouth cold steel cleaning device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings and provide a safe and precise furnace mouth cooling steel device. An observation window is installed on the movable fireproof plate for easy observation of the furnace interior. After the oxygen blowing pipe is positioned, it can move up and down using a lever with that position as a pivot point. Combined with the movable guide cart and the movable fireproof plate, the oxygen blowing pipe can be precisely cleaned in all directions within the furnace mouth, improving cleaning effect and efficiency. Graduation lines are provided on the outer wall of the oxygen blowing pipe. After the oxygen blowing pipe is fixed by the second screw, the depth of the oxygen blowing pipe entering the furnace mouth can be calculated using these graduations. This allows operators to easily monitor the cleaning progress and depth, ensuring the accuracy and safety of the cleaning work. This invention solves the problems of existing devices that make it difficult for operators to observe the furnace mouth interior in real time, resulting in a lack of intuitiveness in the cleaning process. Furthermore, existing cleaning devices cannot achieve precise cleaning in all directions, and the cleaning efficiency and quality cannot meet actual production needs. In addition, it is difficult to accurately determine the depth of the oxygen blowing pipe entering the furnace mouth, requiring operators to rely on experience for rough judgment, which increases the blindness and uncertainty of the cleaning work.

[0005] The objective of this utility model is achieved through the following means:

[0006] A safe and precise furnace mouth cooling steel device includes a movable fireproof plate and a movable guide trolley. The movable guide trolley is located behind the movable fireproof plate. An observation window is provided on the movable fireproof plate, and a through groove is provided below the observation window. An oxygen blowing pipe moves through the through groove, and scale lines are provided on the outer wall of the oxygen blowing pipe. A limit plate is provided on one side of the through groove, and a first screw is sleeved inside the limit plate. A threaded sleeve is sleeved on the first screw. A first connector is provided on one side of the threaded sleeve. A limit bolt is rotatably engaged in the first connector. The other end of the limit bolt is rotatably engaged with the side wall of the threaded sleeve. A support rod is installed on the upper side of the movable guide trolley. A second connector is rotatably connected to the top of the support rod. A support ring is installed on the upper end of the second connector. A pressure ring is provided above the support ring. Bolts are connected to both sides of the support ring. A second screw is vertically connected to the middle of the pressure ring.

[0007] Furthermore, the limiting plate and the movable fireproof plate are fixedly installed, the first screw is rotatably engaged with the limiting plate, and the threaded sleeve is threadedly engaged with the first screw.

[0008] Furthermore, the first connector is in contact with the outer wall of one side of the threaded sleeve through a limiting bolt, and the outer wall of the oxygen blowing pipe is in contact with the inner walls of both sides of the through groove. When the first screw rotates, the threaded sleeve can be raised and lowered, and the oxygen blowing pipe can be moved up and down by the threaded sleeve and the first connector.

[0009] Furthermore, the support ring is closed by contact with the pressure ring through bolts, the second screw is threadedly connected to the pressure ring, and the second screw is in compression contact with the oxygen blowing pipe. By rotating the second screw, the oxygen blowing pipe is compressed and positioned, thereby positioning the distance between the movable fireproof plate and the movable guide vehicle.

[0010] Furthermore, a flashback device is connected to the front end of the oxygen blowing pipe, a stainless steel ball valve is connected to the front end of the flashback device, and a quick-release connector is connected to the front end of the stainless steel ball valve. The quick-release connector is connected to an external oxygen supply pipeline. A cooling gas pipe is connected to the front side wall of the oxygen blowing pipe. A stainless steel ball valve and a quick-release connector are also connected to the front side of the cooling gas pipe in sequence, and the quick-release connector is connected to an external compressed air pipeline.

[0011] The beneficial effects of this invention are as follows: An observation window is provided on the movable fireproof plate for easy observation of the furnace interior. An oxygen blowing pipe is inserted into the slot and its vertical movement is achieved through a limiting plate, a first screw, a threaded sleeve, and a first connecting piece. This facilitates convenient operation and allows for flexible adjustment of the oxygen blowing pipe's position, aiding in precise cleaning of cold steel at the furnace opening. The cooperation of the support rod, second connecting piece, support ring, pressure ring, and second screw on the movable guide carriage allows for compression and positioning of the oxygen blowing pipe, thereby determining the distance between the movable fireproof plate and the movable guide carriage. Once positioned, the oxygen blowing pipe can move up and down using a lever at that point. Combined with the movable guide carriage and movable fireproof plate, this enables precise cleaning of the oxygen blowing pipe within the furnace opening, improving cleaning effectiveness and efficiency. Graduation lines are provided on the outer wall of the oxygen blowing pipe. After the second screw fixes the oxygen blowing pipe, the depth of the pipe entering the furnace opening can be calculated using these lines, allowing operators to easily monitor the cleaning progress and depth, ensuring the accuracy and safety of the cleaning work. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a safe and precise furnace mouth cooling steel device according to the present invention;

[0013] Figure 2 This is a schematic diagram of the observation window structure in a safe and precise furnace mouth cooling steel device of this utility model;

[0014] Figure 3 This is a schematic diagram of the oxygen blowing pipe in a safe and precise furnace mouth cooling steel device of this utility model;

[0015] Figure 4 This is a schematic diagram of the moving guide vehicle in a safe and precise furnace mouth cooling steel device of this utility model;

[0016] Figure 5 This is a schematic diagram of the support ring structure in a safe and precise furnace mouth cooling steel device of this utility model;

[0017] In the diagram: 1. Movable fireproof board; 2. Observation window; 3. Through groove; 4. Oxygen blowing pipe; 401. Scale line; 402. First connecting piece; 5. Flashback device; 6. Stainless steel ball valve; 7. Quick-release connector; 8. Cooling gas pipe; 9. Limiting plate; 10. First screw; 11. Threaded sleeve; 12. Limiting bolt; 13. Movable guide car; 14. Support rod; 15. Support ring; 1501. Second connecting piece; 16. Pressure ring; 17. Second screw; 18. Bolt. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 The specific implementation of the safe and precise furnace mouth cooling steel device includes a movable fireproof plate 1 and a movable guide car 13. The movable fireproof plate 1 has an observation window 2, and a through groove 3 is opened below the observation window 2. An oxygen blowing pipe 4 is inserted into the through groove 3. Two limiting plates 9 are set on one side of the through groove 3. The two limiting plates 9 are arranged vertically and horizontally. A first screw 10 is rotatably engaged in the limiting plate 9. A threaded sleeve 11 is rotatably sleeved on the first screw 10. A first connector 402 is set on the side of the threaded sleeve 11 facing the oxygen blowing pipe 4. The first connector 402 and the threaded sleeve 11 are rotatably connected by a limiting bolt 12. When the first screw 10 rotates, the threaded sleeve 11 can be raised and lowered, and the oxygen blowing pipe 4 can be moved up and down through the threaded sleeve 11 and the first connector 402.

[0020] A support rod 14 is installed on the mobile guide trolley 13. A second connector 1501 is rotatably connected to the top of the support rod 14. A support ring 15 is installed on the upper side of the second connector 1501. A pressure ring 16 is connected to the upper side of the support ring 15 by bolts 18. A second screw 17 is connected to the top threaded sleeve 11 of the pressure ring 16. After the oxygen blowing pipe 4 passes between the support ring 15 and the pressure ring 16, the oxygen blowing pipe 4 can be squeezed and positioned by rotating the second screw 17, thereby positioning the distance between the mobile fireproof plate 1 and the mobile guide trolley 13. After the oxygen blowing pipe 4 is positioned by the second screw 17, when the oxygen blowing pipe 4 rises and falls with the threaded sleeve 11, the position where the oxygen blowing pipe 4 is positioned by the second screw 17 is used as the pivot point, which allows the output end of the oxygen blowing pipe 4 to move up and down in the manner of a rocker arm. With the help of the mobile guide trolley 13 and the mobile fireproof plate 1, the oxygen blowing pipe 4 can be precisely cleaned up, down, left and right inside the furnace opening.

[0021] A scale line 401 is provided on the outer wall of the oxygen blowing pipe 4. After the second screw 17 fixes the oxygen blowing pipe 4, the depth of the oxygen blowing pipe 4 entering the furnace opening can be calculated through the scale line 401.

[0022] A flashback device 5 is connected to the front end of the oxygen blowing pipe 4. A stainless steel ball valve 6 is connected to the front end of the flashback device 5. A quick-release connector 7 is connected to the front end of the stainless steel ball valve 6. The quick-release connector 7 is connected to an external oxygen supply pipeline. A cooling air pipe 8 is connected to the front side wall of the oxygen blowing pipe 4. The cooling air pipe 8 is connected to an external compressed air pipeline through the stainless steel ball valve 6 and the quick-release connector 7.

[0023] The working process of a safe and precise furnace mouth cooling steel cleaning device in this embodiment is as follows: An oxygen blowing pipe 4 is inserted into the through groove 3, and the oxygen blowing pipe 4 can move up and down through the limiting plate 9, the first screw 10, the threaded sleeve 11, the first connecting piece 402, and other structures. The operation is convenient and the position of the oxygen blowing pipe 4 can be flexibly adjusted, which helps to accurately clean the cold steel at the furnace mouth. The cooperation of the support rod 14, the second connecting piece 1501, the support ring 15, the pressure ring 16, and the second screw 17 on the moving guide carriage 13 can squeeze and position the oxygen blowing pipe 4, thereby positioning the distance between the moving fireproof plate 1 and the moving guide carriage 13. After the oxygen blowing pipe 4 is positioned, it can move up and down in a prying motion with this position as the pivot point. With the cooperation of the moving guide carriage 13 and the moving fireproof plate 1, the oxygen blowing pipe 4 can achieve precise cleaning in all directions within the furnace mouth, improving the cleaning effect and efficiency. The outer wall of the oxygen blowing pipe 4 has a scale line 401. After the oxygen blowing pipe 4 is fixed by the second screw 17, the depth of the oxygen blowing pipe 4 entering the furnace mouth can be calculated through the scale line 401. This makes it convenient for operators to grasp the cleaning progress and depth, and ensures the accuracy and safety of the cleaning work.

[0024] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A safe and precise furnace mouth cooling steel device, comprising a movable fireproof plate (1) and a movable guide vehicle (13), wherein the movable guide vehicle (13) is disposed on the rear side of the movable fireproof plate (1), characterized in that: The movable fireproof board (1) is provided with an observation window (2), and a through groove (3) is provided below the observation window (2). An oxygen blowing pipe (4) is movably passed through the through groove (3). A scale line (401) is provided on the outer wall of the oxygen blowing pipe (4). A limit plate (9) is provided on one side of the through groove (3). A first screw (10) is sleeved in the limit plate (9). A threaded sleeve (11) is sleeved on the first screw (10). A first connector (402) is provided on one side of the threaded sleeve (11). A limit bolt (12) is rotatably engaged in the first connector (402). The other end of the limit bolt (12) is rotatably engaged with the side wall of the threaded sleeve (11). A support rod (14) is installed on the upper side of the mobile guide vehicle (13). A second connector (1501) is rotatably connected to the top of the support rod (14). A support ring (15) is installed on the upper end of the second connector (1501). A pressure ring (16) is provided above the support ring (15). Bolts (18) are connected to both sides of the support ring (15). A second screw (17) is vertically connected to the middle of the pressure ring (16).

2. The safe and precise furnace mouth cooling steel device according to claim 1, characterized in that: The limiting plate (9) is fixedly installed with the movable fireproof plate (1), the first screw (10) is rotatably engaged with the limiting plate (9), and the threaded sleeve (11) is threadedly engaged with the first screw (10).

3. The safe and precise furnace mouth cooling steel device according to claim 1, characterized in that: The first connector (402) is in contact with the outer wall of the threaded sleeve (11) on one side through the limiting bolt (12), and the outer wall of the oxygen blowing pipe (4) is in contact with the inner walls of both sides of the through groove (3).

4. The safe and precise furnace mouth cooling steel device according to claim 1, characterized in that: The support ring (15) is closed by contact with the pressure ring (16) via bolts (18).

5. The safe and precise furnace mouth cooling steel device according to claim 1, characterized in that: The second screw (17) is threadedly connected to the pressure ring (16), and the second screw (17) is in extrusion contact with the oxygen blowing pipe (4).

6. The safe and precise furnace mouth cooling steel device according to claim 1, characterized in that: The front end of the oxygen blowing pipe (4) is connected to a flasher (5), the front end of the flasher (5) is connected to a stainless steel ball valve (6), the front end of the stainless steel ball valve (6) is connected to a quick-release connector (7), the front side wall of the oxygen blowing pipe (4) is connected to a cooling gas pipe (8), and the front side of the cooling gas pipe (8) is also connected to a stainless steel ball valve (6) and a quick-release connector (7) in sequence.

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