Safety protection device for steel heating furnace

Abstract

The invention relates to a steel heating furnace safety protection device which comprises a base and a top frame which are oppositely arranged, fixing plates arranged between the base and the top frame and a door plate arranged between the two fixing plates, the base and the top frame are annular, the fixing plates and the door plate are arc-shaped plates, the number of the fixing plates is two, and the number of the fixing plates is two. Two door plates are arranged between the two fixing plates, sliding rail structures are arranged on the base and the top frame so that the two door plates can move outwards or inwards, and after the door plates are completely opened, the door plates slide to the outer sides of the fixing plates. The sliding rail structure is approximately cylindrical, and after the door plate is opened along the sliding rail structure, the door plate moves to the outer side position of the fixing plate. The sliding rail is of an arc-shaped structure concentric with the fixing plate, after the door plate is pulled outwards, the door plate cannot intrude into the position outside the protection device, more occupied space is saved, the door plate, the fixing plate and the like can be arranged on one side of a furnace opening of the heating furnace, metal smelting materials can be effectively prevented from being sprayed out to injure workers, and the better protection effect is achieved.

Description

Technical Field

[0001] The invention belongs to relevant equipment in the steel industry, and in particular relates to a safety protection device for a steel heating furnace. Background Art

[0002] A heating furnace is a device that heats materials or workpieces to the rolling or forging temperature. Heating furnaces are used in many industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals.

[0003] During the use of the steel heating furnace, a protective device needs to be installed next to the furnace to prevent the molten metal from spraying out and causing harm to the workers, and also to prevent objects falling from above the heating furnace from injuring the workers.

[0004] The utility model patent with publication number CN214470075U discloses a safety protection device for a steel heating furnace, which adds a heat insulation device to isolate the heat and protect the user. However, in this structure, a protective net is still used, and the ejected smelt may still be ejected outward from the mesh, which poses a certain safety hazard.

[0005] Another example is the utility model patent with publication number CN213515126U, which discloses a safety protection device for a heating furnace for steel. It adopts a double protective door structure to form a safety enclosure to play an isolation role. However, the two protective doors are pulled outward when opened, and it is necessary to leave a door opening position around the protective device, which requires a large space to be reserved and occupies a large area. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a safety protection device for a steel heating furnace, which can achieve a good protection effect and does not require a door opening space to be reserved around the device.

[0007] The technical solution adopted by the present invention is: A safety protection device for a steel heating furnace comprises a base and a top frame which are arranged opposite to each other, a fixed plate arranged between the base and the top frame, and a door plate arranged between the two fixed plates. The base and the top frame are annular, the fixed plate and the door plate are arc-shaped plates, there are two fixed plates which are arranged opposite to each other, two door plates are arranged between the two fixed plates, and a slide rail structure is provided on the base and the top frame so that the two door plates can move outward or inward. After being fully opened, the door plate slides to the outside of the fixed plate.

[0008] Furthermore, each door panel corresponds to a set of slide rail structures, and the slide rail structure includes a first slide groove arranged at the base, a lower partition arranged in front of the inner wall of the first slide groove, and a first through hole and a second through hole arranged at the front and rear ends of the lower partition. The lower partition separates the second slide groove on the inner side of the first slide groove, and the second slide groove corresponds to the position of the fixed plate. When the door panel is closed, it passes through the first through hole and the second through hole and enters the second slide groove, so that one side of the door panel is in contact with the fixed plate, and the other side is in contact with the other door panel.

[0009] Furthermore, rollers are provided at both ends of the bottom of the door panel, the roller at the front passes through the first through opening into the second slide groove, and the roller at the rear passes through the second through opening into the second slide groove.

[0010] Furthermore, the slide rail structure also includes a third slide groove arranged on the top frame, and the third slide groove corresponds to the position of the first slide groove. An upper partition is provided in front of the inner wall of the third slide groove, and the position of the upper partition corresponds to the lower partition. A third through opening and a fourth through opening are respectively provided at the front and rear ends of the upper partition, and a guide device for guiding the door panel to move inward is provided in the third slide groove.

[0011] Furthermore, the guide device includes a first guide plate connected to the upper partition, the first guide plate is located at one end close to the fourth through port, and the bottom surface of the first guide plate is higher than the bottom surface of the upper partition, and a first roller and a second roller are respectively provided at the top ends of the door panel, the first roller is located at the front side end of the door panel, and the height of the first roller is lower than the height of the second roller, the first roller cooperates with the upper partition, and the second roller cooperates with the first guide plate.

[0012] Furthermore, a second guide plate is provided at the other end of the upper partition plate, and the second guide plate is located on a side close to the third through port.

[0013] Furthermore, the front end of the first slide groove corresponds to the position of the first through opening, and the front end of the first slide groove is a transition structure, so that the roller located at the front end of the bottom of the door panel can smoothly pass through the first through opening and enter the second slide groove.

[0014] Furthermore, lifting platforms are respectively arranged at the left and right ends of the second slide groove, and after the door panel is closed, the rollers at the two ends of the bottom are located on the lifting platforms.

[0015] Furthermore, the width of the second sliding groove corresponds to the thickness of the door panel.

[0016] Furthermore, the contacting sides of the two door panels are respectively formed with an arc-shaped protrusion and an arc-shaped groove, and the arc-shaped protrusion is matched with the arc-shaped groove.

[0017] Furthermore, a plurality of vertical support plates are provided between the base and the top frame and at the rear side of the fixed plate, and a connecting horizontal plate is provided between two adjacent support plates and between the support plate and the fixed plate.

[0018] The positive effects of the present invention are: The base, top frame, fixed plate and door plate of the present invention form an approximate cylindrical shape. After the door plate is opened along the slide rail structure, the door plate moves to the outer side of the fixed plate. The slide rail adopts an arc structure concentric with the fixed plate. After the door plate is pulled outward, it will not invade the position outside the protective device, which saves more space. In addition, the door plate, fixed plate, etc. can be arranged on one side of the furnace mouth of the heating furnace, which can effectively prevent the metal molten material from spraying out to cause harm to the staff, and has a better protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the base structure of the present invention; Figure 3 It is a schematic diagram of the top frame structure of the present invention; Figure 4 It is a schematic diagram of the upper partition of the present invention; Figure 5 It is a schematic diagram of the door panel structure of the present invention. DETAILED DESCRIPTION

[0020] The invention discloses a safety protection device for a steel heating furnace, which can be arranged at the periphery of the heating furnace to play an isolating role, prevent people from approaching, and prevent metal melts from spraying out to cause harm to workers, thereby ensuring the safety of operators.

[0021] As attached Figure 1-5 As shown, it includes a base 1, a top frame 2, a fixed plate 3 and a door panel 4. The base 1 is fixedly set on the ground, and the top frame 2 is set just above the base 1. Both the base 1 and the top frame 2 are annular. The fixed plates 3 are arc-shaped, and there are two of them and they are fixed between the base 1 and the top frame 2. The door panels 4 are also two and are located between the two fixed plates 3. A slide rail structure is provided on the base 1 and the top frame 2. The two door panels 4 can be moved through the slide rail structure. When the door needs to be opened, the door panels 4 are pulled outward, and the door panels 4 move along the slide rail structure to the outside of the fixed plate 3, forming a state where two arc-shaped panels are stacked, which can effectively reduce the floor space occupied when the door is opened and improve space utilization. When closing the door, push the door panels 4 inward, and the door panels 4 gradually return to the initial position, and are assembled with the fixed plate 3 to form an integral arc-shaped plate, which blocks the front of the heating furnace and forms an isolation effect.

[0022] Specifically, each door panel 4 corresponds to a set of slide rail structures, which include a first slide groove 6 arranged on the base 1 and a lower partition 17 arranged in front of the inner side wall of the first slide groove 6. Passages are arranged at the front and rear ends of the lower partition 17, the first passage 9 is located at the front end, and the second passage 8 is located at the rear end. The lower partition 17 separates the second slide groove 7 on the inner side of the first slide groove 6. Rollers are arranged at both ends of the bottom of the door panel 4. The roller located at the front enters the second slide groove 7 from the first passage 9, and the roller located at the rear enters the second slide groove 7 from the second passage 8. The second slide groove 7 and the fixed plate 3 are located on the same arc. When the roller of the door panel 4 completely enters the second slide groove 7, the door panel 4 fits with the fixed plate 3 to form a blocking effect. The first slide groove 6 is located at the outer side of the fixed plate 3, and its shape corresponds to that of the fixed plate 3. The groove width is slightly larger than that of the door panel 4, so that the door panel 4 can smoothly enter the first slide groove 6. The height of the lower partition plate 17 should be lower than the bottom surface of the door panel 4 so that the door panel 4 can smoothly pass through the lower partition plate 17 and enter the second chute 7 .

[0023] In order to smoothly allow the door panel 4 to enter the second slide groove 7 from the first slide groove 6, the present invention is further provided with a guide device. A third slide groove 11 is provided on the top frame 2, and the third slide groove 11 corresponds to the first slide groove 6. An upper partition 13 is provided in front of the inner side wall of the third slide groove 11, and the upper partition 13 also corresponds to the position of the lower partition 17. A third through hole 19 and a fourth through hole 20 are also provided at the front and rear ends of the upper partition 13, respectively. A guide device is provided in the third slide groove 11.

[0024] The guide device includes a first guide plate 14 connected to the upper partition 13. The first guide plate 14 is located at one end close to the fourth through opening 20, and the bottom surface of the first guide plate 14 is higher than the bottom surface of the upper partition 13. A first roller 15 and a second roller 16 are respectively provided at the top ends of the door panel 4. The first roller 15 is located at the front end of the door panel 4, and the second roller 16 is located at the rear section of the door panel 4. The height of the first roller 15 is lower than the height of the second roller 16, and the first guide plate 14 is higher than the position of the first roller 15. During the door closing process, since the height of the first guide plate 14 is higher than the position of the first roller 15, the first guide plate 14 will not contact the first roller 15, and the first roller 15 moves along the third slide groove 11. Only when the door panel moves to the front end position of the first and third slide grooves, under the guiding action of the first and third slide grooves, the roller located at the front end of the bottom of the door panel and the first roller 15 located at the front end of the top of the door panel pass through the first and third through openings, so that the front end of the door panel 4 enters the position of the second slide groove 7. When the second roller 16 passes the position of the first guide plate 14, the second roller 16 cooperates with the first guide plate 14, and under the action of the first guide plate 14, a component of force appears at the rear end of the door panel 4 to move inward, so that the roller and the second roller at the rear end of the door panel pass through the second through opening 8 and the fourth through opening 20, so that the rear end of the door panel 4 moves inward to a position cooperating with the fixed plate 3.

[0025] Similarly, a second guide plate 21 is provided at the other end of the upper partition plate 13 . During the door closing process, the second guide plate 21 cooperates with the first roller 15 so that the front side section of the door panel 4 can smoothly enter the first slide groove 6 from the second slide groove 7 .

[0026] Preferably, the contact surface between the door panel 4 and the fixing plate 3 is an inclined surface to facilitate smooth opening and closing of the door.

[0027] The front ends of the first slide groove 6 and the third slide groove 11 correspond to the positions of the first through opening 9 and the third through opening 19 respectively, and the front ends of the first and third slide grooves are transition structures so that the roller located at the front end of the bottom of the door panel 4 can smoothly pass through the first and third through openings into the second slide groove 7.

[0028] Preferably, the groove width of the second slide groove 7 corresponds to the thickness of the door panel 4, and a lifting platform 10 is provided at the groove bottom of the second slide groove 7 and at a position corresponding to the roller on the bottom surface of the door panel 4. When the door panel 4 completely enters the second slide groove 7, the lifting platform 10 descends, so that the bottom end of the door panel 4 is completely stuck in the second slide groove 7 to be fixed. When the door needs to be opened, the lifting platform 10 rises to lift the door panel 4 upward.

[0029] Since the final position of the door panel 4 when closed will have a certain deflection, in order to make the two door panels 4 better match each other, the contacting sides of the two door panels 4 are respectively formed with an arc-shaped protrusion 18 and an arc-shaped groove, and the arc-shaped protrusion 18 is adapted to the arc-shaped groove.

[0030] A plurality of vertical support plates 5 are provided between the base 1 and the top frame 2 and at the rear side of the fixed plate 3 , and a connecting transverse plate is provided between two adjacent support plates 5 and between the support plate 5 and the fixed plate 3 .

[0031] The present invention utilizes an arc-shaped fixed plate 3, a door panel 4 and a special slide rail structure, so that after the door is opened, the door panel 4 is located outside the fixed plate 3. After the door is opened, the protective device still has a cylindrical structure and does not occupy the space outside the door panel 4. Compared with the traditional door opening method, it occupies less space.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety protection device for a steel heating furnace, characterized in that The invention comprises a base (1) and a top frame (2) arranged opposite to each other, a fixed plate (3) arranged between the base (1) and the top frame (2), and a door plate (4) arranged between the two fixed plates (3); the base (1) and the top frame (2) are annular; the fixed plate (3) and the door plate (4) are arc-shaped plates; the fixed plates (3) are two arranged opposite to each other; two door plates (4) are arranged between the two fixed plates (3); a slide rail structure is provided on the base (1) and the top frame (2) so that the two door plates (4) can move outward or inward; after being fully opened, the door plates (4) slide to the outside of the fixed plates (3).

2. The safety protection device for a steel heating furnace according to claim 1 is characterized in that Each door panel (4) corresponds to a set of slide rail structures, the slide rail structure comprising a first slide groove (6) arranged on the base (1), a lower partition (17) arranged in front of the inner side wall of the first slide groove (6), and a first through hole (9) and a second through hole (8) arranged at the front and rear ends of the lower partition (17); the lower partition (17) separates a second slide groove (7) on the inner side of the first slide groove (6); the second slide groove (7) corresponds to the position of the fixed plate (3); when the door panel (4) is closed, it passes through the first through hole (9) and the second through hole (8) and enters the second slide groove (7), so that one side of the door panel (4) is in contact with the fixed plate (3), and the other side is in contact with another door panel (4).

3. The safety protection device for a steel heating furnace according to claim 2 is characterized in that Rollers are provided at both ends of the bottom of the door panel (4); the roller located at the front passes through the first through opening (9) into the second slide groove (7), and the roller located at the rear passes through the second through opening (8) into the second slide groove (7).

4. The safety protection device for a steel heating furnace according to claim 2 is characterized in that The slide rail structure further comprises a third slide groove (11) arranged on the top frame (2), the third slide groove (11) corresponding to the position of the first slide groove (6), an upper partition (13) is arranged in front of the inner side wall of the third slide groove (11), the position of the upper partition (13) corresponds to the lower partition (17), a third through opening (19) and a fourth through opening (20) are respectively arranged at the front and rear ends of the upper partition (13), and a guide device for guiding the door panel (4) to move inward is arranged in the third slide groove (11).

5. The steel heating furnace safety protection device according to claim 4 is characterized in that The guide device comprises a first guide plate (14) connected to the upper partition plate (13), the first guide plate (14) being located at one end close to the fourth through opening (20), and the bottom surface of the first guide plate (14) being higher than the bottom surface of the upper partition plate (13), a first roller (15) and a second roller (16) being respectively provided at two ends of the top of the door panel (4), the first roller (15) being located at the front side end of the door panel (4), and the height of the first roller (15) being lower than the height of the second roller (16), the first roller (15) being matched with the upper partition plate (13), and the second roller (16) being matched with the first guide plate (14); A second guide plate (21) is provided at the other end of the upper partition plate (13), and the second guide plate (21) is located on a side close to the third through opening (19).

6. The safety protection device for a steel heating furnace according to claim 3 is characterized in that The front end of the first slide groove (6) corresponds to the position of the first through opening (9), and the front end of the first slide groove (6) is a transition structure, so that the roller located at the front end of the bottom of the door panel (4) can smoothly pass through the first through opening (9) and enter the second slide groove (7).

7. The safety protection device for a steel heating furnace according to claim 2 is characterized in that Lifting platforms (10) are respectively arranged at the left and right ends of the second slide groove (7); after the door panel (4) is closed, the rollers at the two ends of the bottom are located on the lifting platforms (10).

8. The steel heating furnace safety protection device according to claim 4 is characterized in that The width of the second sliding groove (7) corresponds to the thickness of the door panel (4).

9. The safety protection device for a steel heating furnace according to claim 1, characterized in that The contacting sides of the two door panels (4) are respectively provided with an arc-shaped protrusion (18) and an arc-shaped groove, and the arc-shaped protrusion (18) is matched with the arc-shaped groove.

10. The safety protection device for a steel heating furnace according to claim 1, characterized in that A plurality of vertical support plates (5) are provided between the base (1) and the top frame (2) and at the rear side of the fixed plate (3), and a connecting horizontal plate is provided between two adjacent support plates (5) and between the support plate (5) and the fixed plate (3).

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