A safety protection device for a metal smelting furnace in a steel plant

Abstract

The utility model relates to steel plant steelmaking safety equipment technical field, especially a kind of metal smelting furnace safety protection device for steel plant.It includes upper ring, lower ring and multiple struts between them, and upper ring, lower ring are combined by left and right two half symmetrical parts.Lower ring's front part has a notch, and the outer surface of lower ring is fixedly connected with multiple foots.Lower ring, upper ring are fixedly connected with retaining wall, and the end face of retaining wall left to notch is open cavity.Upper ring's bottom is fixedly connected with track, and the outer surface of track is movably connected with main door, and the edge of main door surface is fixedly connected with handle, and main door is fixedly connected with visual window, and main door can be moved into cavity.Main door's outer surface is fixedly connected with cooling water pipe.It has compact structure, safe use, reliable protection, especially suitable for workshop environment use with limited space.

Description

Technical Field

[0001] This utility model relates to the technical field of steelmaking safety equipment in steel plants, and in particular to a safety protection device for metal furnaces in steel plants. Background Technology

[0002] In existing technologies, steel plant heating furnaces heat steel billets and ingots to the temperatures required for subsequent plastic processing such as rolling and forging. Simultaneously, they homogenize the temperature, improve the internal structure of the steel, and reduce processing resistance. To prevent injury to operators from splashing smelting materials, safety protection devices, such as protective barriers or warning signs, are typically installed near the furnace to prevent non-operating personnel from approaching the high-temperature equipment and reduce the risk of accidental injury. However, their drawback is that they are not always effective in providing protection. Utility Model Content

[0003] The purpose of this utility model is to provide a safety protection device for metal furnaces in steel plants with a reasonable structure and good protective effect. The technical solution of this utility model is: a safety protection device for a metal furnace in a steel plant, comprising an upper ring, a lower ring, and multiple support pillars between them. The upper and lower rings are composed of symmetrical left and right halves. The front of the lower ring has a notch, and multiple feet are fixedly connected to the outer surface of the lower ring. A retaining wall is fixedly connected between the lower and upper rings, and the end face of the retaining wall to the left of the notch is an open cavity. A track is fixedly connected to the bottom of the upper ring, and a main door is movably connected to the outer surface of the track. A handle is fixedly connected to the edge of the main door, and a viewing window is fixedly connected to the main door. The main door can be moved and retracted into the cavity. Cooling water pipes are fixedly connected to the outer surface of the retaining wall.

[0004] The lower and upper rings are circular.

[0005] The main gate can be moved to close the gap between the left and right retaining walls.

[0006] The viewing window is made of tempered glass.

[0007] Cooling water pipes are fixedly connected to the outer surface of the retaining wall, through which cooling water flows. The cooling water pipes are divided into two independent sections, each located on one half of the retaining wall. The cooling water pipes are multi-folded, with an inlet connector fixedly connected to one end and an outlet connector fixedly connected to the other end. This safety device features a water-cooled structure. Cooling water, coolant, or cooling oil enters through the inlet connector and flows along the folded cooling water pipes, exchanging heat with the hotter retaining wall and carrying away its heat. This cools the retaining wall, avoids high-temperature risks, reduces thermal stress damage to the device, and prevents workers from being accidentally burned by the device.

[0008] The lower ring is composed of two symmetrical halves, with their ends abutting each other, and is welded to the support column. The front of the lower ring has a notch, providing an initial passage for equipment and personnel. Several feet are fixedly connected to the outer surface of the lower ring, welded to them, and anchor bolts are inserted into the feet. Fasteners (hexagonal nuts with washers) are threaded onto the outer surface of the anchor bolts. The feet, anchor bolts, and fasteners securely install the lower ring on the ground, ensuring the stability of the entire device. The support column is made of stainless steel, with the upper ring fixedly connected to its top and welded to the lower ring at its bottom, supporting the upper ring and providing structural support for the entire device, ensuring its strength and stability. The upper ring is circular, composed of two symmetrical halves, connected to the lower ring via the support column, forming a ring structure that completely surrounds the heating furnace. A track is fixedly connected to the bottom of the upper ring. The track is made of stainless steel and connected to the upper ring with screws. The track guides and supports the movement of the main door, allowing it to slide smoothly along the track. The main door is movably connected to the outer surface of the track, and a handle is fixedly attached to the edge of the main door surface for easy pushing or pulling by the operator. The main door can close the gap in the retaining wall. When equipment or personnel need to enter or exit, the operator pushes the main door with the handle, moving it along the track to open the gap. After entering or exiting, the main door is pulled back with the handle to close the gap. A viewing window made of tempered glass is fixedly connected to the main door, allowing the operator to observe the working conditions inside the heating furnace without opening the main door, thus improving safety. The main door can be retracted into the cavity of the left half of the retaining wall. When the main door is fully open, it can be pushed into the cavity, saving space and preventing the main door from obstructing the entry or exit of equipment or personnel. The retaining wall is composed of two symmetrical halves, welded to the lower and upper rings, and is made of Q235 steel. The left half of the retaining wall is hollow, with several pre-drilled holes, forming a cavity to accommodate the main door. The retaining wall, together with the lower and upper rings, forms a closed protective space that effectively blocks high-temperature splashes from the heating furnace and protects the safety of surrounding personnel.

[0009] The support column is made of stainless steel, and the upper ring is circular in shape. The lower ring is installed on the ground via anchors, anchor bolts, and fasteners, and is welded to the anchors. The fasteners are specifically hexagonal nuts with washers, which are tightened onto the surface of the anchors.

[0010] A retaining wall is welded between the lower and upper rings. The retaining wall is also composed of two symmetrical halves, with the left half designed as a hollow structure forming an internal cavity. Multiple pre-drilled holes are made in the retaining wall. The retaining wall is made of Q235 steel, which has good heat resistance and structural strength.

[0011] The bottom of the upper ring is connected to a track made of stainless steel via screws. A main door is movably connected to the track, and a handle is fixedly installed on the edge of the main door. The main door can slide along the track, thereby opening or closing the gap in the retaining wall. A tempered glass viewing window is also installed on the main door for easy observation of the furnace's internal conditions. When the main door is fully open, it can be pushed into the cavity of the left half of the retaining wall for storage, saving space. This utility model device is particularly suitable for large and medium-sized blast furnaces. Its ring-shaped assembly structure provides full-enclosed protection, effectively blocking high-temperature splashes. The sliding storage design of the main door avoids the external clearance space required by traditional outward-opening doors, greatly saving floor space. Real-time observation is possible through the viewing window, improving operational safety and convenience.

[0012] This device is specifically designed for the safety protection of large and medium-sized blast furnaces, preventing injury to personnel from high-temperature splashes. It features a modular, ring-shaped design that fully surrounds the heating furnace. A main door facilitates easy access for equipment and personnel. The entire device occupies minimal space. A high-heat-resistant metal baffle is fixedly connected between the lower and upper rings. This baffle, in conjunction with the main door, effectively prevents high-temperature splashes from the furnace. The baffle is partially hollow, allowing the main door to retract into its cavity. The main door forgoes the double-opening, outward-pulling design, eliminating the need for external clearance. The entire device has a small footprint and requires minimal space. Its compact structure and reliable protection make it particularly suitable for use in space-constrained workshop environments.

[0013] Both the lower and upper rings adopt a symmetrical split structure for easy transportation and on-site assembly, and are connected to the support columns by welding to form a stable whole. During installation, anchor bolts are first pre-embedded in the ground positioning points, and the lower ring is fixed to the ground by fasteners consisting of anchor bolts and hexagonal nuts with washers. The retaining wall is welded between the lower and upper rings to form a surrounding protective barrier. The track is fixed to the bottom of the upper ring with screws, and the main door is assembled on the track.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. This device is specifically designed for the safety protection of large and medium-sized blast furnaces, preventing injury to personnel from high-temperature splashes. It features a modular, ring-shaped design that fully surrounds the heating furnace. A main door facilitates easy access for equipment and personnel. The entire device occupies minimal space. A high-heat-resistant metal baffle is fixedly connected between the lower and upper rings. This baffle, in conjunction with the main door, effectively prevents high-temperature splashes from the furnace. The baffle is partially hollow, allowing the main door to retract into its cavity, eliminating the need for external clearance. The entire device has a small footprint and requires minimal space. Its compact structure and reliable protection make it particularly suitable for use in space-constrained workshop environments.

[0015] 2. This device is equipped with a water-cooling structure. Cooling water, coolant, or cooling oil enters through the water inlet connector and then flows along the zigzag cooling water pipe, exchanging heat with the hotter baffle wall and carrying away the heat from the baffle wall, thereby cooling the baffle wall, avoiding the risk of high temperature, reducing thermal stress damage to the device, ensuring the service life of the device, and preventing workers from being accidentally burned by this protective device.

[0016] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the present invention from a second perspective.

[0019] Figure 3 This is a schematic diagram of the structure of the track of this utility model.

[0020] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0021] In the diagram: 1-lower ring, 2-support column, 3-upper ring, 4-foot, 5-foot bolt, 6-fastener, 7-retaining wall, 8-cavity, 9-track, 10-main door, 11-handle, 12-viewing window, 13-cooling water pipe, 14-inlet connector, 15-outlet connector. Detailed Implementation

[0022] See Figures 1-4 A safety protection device for a metal furnace in a steel plant includes a lower ring 1, support columns 2, and an upper ring 3. The lower ring 1 is composed of two symmetrical halves. Several support columns 2 are fixedly connected to the top of the lower ring 1, and the upper ring 3 is fixedly connected to the top of the support columns 2. The front of the lower ring 1 has a notch.

[0023] The upper ring 3 is composed of two symmetrical halves.

[0024] The outer surface of the lower ring 1 is fixedly connected with several feet 4, and the feet 4 are fitted with anchor bolts 5. The outer surface of the anchor bolts 5 is threaded with fasteners 6.

[0025] A retaining wall 7 is fixedly connected between the lower ring 1 and the upper ring 3. The left half of the retaining wall 7 is hollow, and several reserved holes are opened on the retaining wall 7. A cavity 8 is opened in the left half of the retaining wall 7.

[0026] The retaining wall 7 is composed of two symmetrical halves. The bottom of the upper ring 3 is fixedly connected to the track 9, the outer surface of the track 9 is movably connected to the main door 10, and the edge of the surface of the main door 10 is fixedly connected to the handle 11.

[0027] A viewing window 12 is fixedly connected to the main door 10, which can be retracted into the cavity 8. A cooling water pipe 13 is fixedly connected to the outer surface of the retaining wall 7. Cooling water flows through the cooling water pipe 13. The cooling water pipe 13 is divided into two independent sections and is located on the two halves of the retaining wall 7 respectively. The cooling water pipe 13 is multi-folded. One end of the cooling water pipe 13 is fixedly connected to a water inlet connector 14, and the other end of the cooling water pipe 13 is fixedly connected to a water outlet connector 15. Example

[0028] The two ends of the lower ring 1 abut together, and the lower ring 1 is welded to the support column 2. The support column 2 is made of stainless steel, and the upper ring 3 is circular in shape. The lower ring 1 is installed on the ground via anchors 4, anchor bolts 5, and fasteners 6, and the lower ring 1 is welded to the anchors 4. The fasteners 6 are specifically hexagonal nuts with washers, which are tightened onto the surface of the anchors 4. The retaining wall 7 is welded to the lower ring 1 and the upper ring 3, and the retaining wall 7 is made of Q235 steel. The track 9 is made of stainless steel, and the track 9 is connected to the upper ring 3 by screws. Example

[0029] The lower ring 1 is composed of two symmetrical halves, with their ends abutting each other, and is welded to the support column 2. The front of the lower ring 1 has a notch, providing an initial passage for equipment and personnel. Several feet 4 are fixedly connected to the outer surface of the lower ring 1, and the lower ring 1 is welded to the feet 4. Anchor bolts 5 are inserted into the feet 4, and fasteners 6 (hexagonal nuts with washers) are threaded onto the outer surface of the anchor bolts 5. The feet 4, anchor bolts 5, and fasteners 6 securely install the lower ring 1 on the ground, ensuring the stability of the entire device. The support column 2 is made of stainless steel, with the upper ring 3 fixedly connected to its top and welded to the lower ring 1 at its bottom, serving to support the upper ring 3 and providing structural support for the entire device, ensuring its strength and stability. The upper ring 3 is circular, composed of two symmetrical halves, and is connected to the lower ring 1 via the support column 2, forming a ring structure that completely surrounds the heating furnace. A track 9 is fixedly connected to the bottom of the upper ring 3. The track 9 is made of stainless steel and is connected to the upper ring 3 with screws. Track 9 provides guidance and support for the movement of main door 10, allowing it to slide smoothly along the track. Main door 10 is movably connected to the outer surface of track 9, and a handle 11 is fixedly connected to the edge of main door 10 for easy pushing or pulling by the operator. Main door 10 can close the gap in retaining wall 7. When equipment or personnel need to enter or exit, the operator pushes main door 10 using handle 11, moving it along track 9 to open the gap. After entry or exit, the main door 10 is pulled back using handle 11 to close the gap. A viewing window 12, made of tempered glass, is fixedly connected to main door 10, allowing the operator to observe the working conditions inside the heating furnace without opening main door 10, thus improving safety. Main door 10 can retract into the cavity 8 of the left half of retaining wall 7. When main door 10 is fully open, it can be pushed into cavity 8, saving space and preventing main door 10 from obstructing equipment or personnel entry or exit. The retaining wall 7 is composed of two symmetrical halves, welded to the lower ring 1 and upper ring 3, and is made of Q235 steel. The left half of the retaining wall 7 is hollow, with several pre-drilled holes, forming a cavity 8 to accommodate the main door 10. The retaining wall 7, together with the lower ring 1 and upper ring 3, constitutes a closed protective space, effectively blocking high-temperature splashes from the heating furnace and protecting the safety of surrounding personnel.

[0030] The working principle of this utility model is as follows: During operation, the protective device is fully enclosed: the retaining wall 7 and the main door 10 together form a closed protective space, confining the heat and splashes generated by the heating furnace inside. When operation or maintenance is required, the operator holds the handle 11 and slides the main door 10 along the track 9 to open the gap. After fully opening, the main door 10 can be pushed into the cavity 8 on the left side of the retaining wall 7, completely clearing the passage without occupying external space. Through the tempered glass viewing window 12, personnel can observe the furnace interior without opening the main door 10, reducing the risk of high-temperature exposure. The entire device has a compact structure and reliable protection, making it particularly suitable for use in space-constrained workshop environments.

[0031] The above description is merely a specific embodiment of this utility model, and the various examples do not constitute a limitation on the substantive content of this utility model.

Claims

1. A safety guard for a metal melting furnace used in a steel mill, characterized in that It includes an upper ring (3), a lower ring (1) and multiple support pillars (2) in between. The upper ring (3) and the lower ring (1) are composed of two symmetrical halves. The lower ring (1) has a notch at the front and multiple feet (4) are fixedly connected to the outer surface of the lower ring (1). A retaining wall (7) is fixedly connected between the lower ring (1) and the upper ring (3). The end face of the retaining wall (7) on the left side of the notch is an open cavity (8). A track (9) is fixedly connected to the bottom of the upper ring (3). A main door (10) is movably connected to the outer surface of the track (9). A handle (11) is fixedly connected to the edge of the surface of the main door (10). A viewing window (12) is fixedly connected to the main door (10). The main door (10) can be moved into the cavity (8). A cooling water pipe (13) is fixedly connected to the outer surface of the retaining wall (7).

2. A safety shield for a metal melting furnace for a steel plant as claimed in claim 1, wherein: The lower ring (1) and upper ring (3) are circular.

3. A safety shield for a metal melting furnace for a steel plant according to claim 1 or 2, characterized in that The main door (10) can be moved to close the gap between the left and right retaining walls (7).

4. A safety shield for a metal melting furnace for a steel plant as claimed in claim 3, wherein The material of the viewing window (12) is tempered glass.

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