CN215365837U

CN215365837U - Converter keeps off fire door track fracture transformation equipment

Info

Publication number: CN215365837U
Application number: CN202121873744.6U
Authority: CN
Inventors: 张学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-31
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses converter fire-stopping door track fracture transformation equipment which comprises a main beam, a cast iron plate, bolts, an auxiliary beam and a track, wherein a weighing plate is arranged on the auxiliary beam, a first vertical plate with the thickness of 30mm is welded at intervals of 200mm on two sides of the weighing plate, a first panel and a first bolt hole which are matched and assembled with the main beam are arranged at the bottom of the auxiliary beam, the main beam comprises an upper panel, a second vertical plate, a first rib plate, a lower panel, a second rib plate, a first lifting lug and a second bolt hole, the first lifting lug is arranged at the lower part of the upper panel, the first rib plate and the second rib plate are welded at intervals of 1m on two sides of the second vertical plate, the second bolt hole corresponds to the first bolt hole, the cast iron plate comprises a second panel and a second lifting lug, the second lifting lug is matched with the first lifting lug, and a third rib plate is distributed on the second panel. Compared with the prior art, the utility model has the advantages that: through upgrading and transforming the girder, the guard plate and the base plate, the potential safety hazard and the working strength of daily maintenance are reduced.

Description

Converter keeps off fire door track fracture transformation equipment

Technical Field

The utility model relates to the technical field of production of converters in steel plants, in particular to a device for transforming fracture of a converter fire-blocking door rail.

Background

The fire-proof door is an important safety guarantee for the safe operation of the converter, the fire-proof door is closed in the normal production and smelting process of the converter, and needs to be opened when adding iron and adding scrap steel, but the fire-proof door cannot normally operate due to rail fracture and girder deformation, so that great potential safety hazards are brought to production.

The current equipment structure is as follows: the converter fire-blocking door is arranged on a track of a platform in front of the converter, a 200 x 200mm base plate is arranged below the track at an interval of 500mm, a weighing main beam is arranged below the base plate, and a steel-facing surface of the main beam is protected by a cast iron protective plate. Converter needs the fire door to pour the sediment forward in process of production, and the fire door is less than 1 meter with the girder distance, and the girder backplate directly receives high temperature to toast, adds the scrap steel and drops the striking, leads to the girder backplate of primary structure to pound easily and falls, and the girder directly receives high temperature to toast.

The girder guard plate is installed in girder upper portion outer edge department, and through long-term high temperature baking and the steel scrap striking that drops, backplate and backing plate drop easily, and the backplate drops the back high temperature and directly toasts the girder, and the steel scrap striking that drops in addition leads to the girder to warp seriously, because of girder warp, the backing plate disappearance track is extremely easy to be cracked, causes the derailment easily when switch fire door, still brings great potential safety hazard when directly restricting production.

The current equipment operation has the following outstanding restriction problems:

first, need follow stokehold slag-off at every turn because of production, converter fire door when forward and platform distance are less than 1 meter, and converter slag-off in-process stove reaction is still comparatively violent, and on red sediment and molten steel splash the rail easily, lead to backplate lug welding seam and rail backing plate welding seam to weld easily, in addition the scrap steel impact that drops, backplate and backing plate drop easily.

Secondly, the front crossbeam of the furnace is a fire damper and a platform weighing beam, and is baked at high temperature and impacted by falling scrap steel for a long time, and deformation of the crossbeam and breakage of a track not only influence normal production of the converter, but also bring great potential safety hazards to the operation of the converter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provide the equipment for transforming the fracture of the converter fire-blocking door rail, and potential safety hazards and the daily maintenance work intensity are reduced by upgrading and transforming the crossbeam, the guard plate and the base plate.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a converter fire-blocking door track fracture transformation device comprises a main beam, a cast iron plate, bolts, an auxiliary beam and a track, wherein the main beam is welded by a welding piece by adopting a Q235 steel plate with the thickness of 40mm, the auxiliary beam is welded by adopting a Q235 steel plate with the thickness of 30mm, because the position of the fire-blocking door is fixed, the main beam and the auxiliary beam are in an eccentric 100mm form, the central lines of the main beam, the auxiliary beam and the track are all on the same straight line, the auxiliary beam is provided with a weighing plate, a first vertical plate with the thickness of 30mm is welded at intervals of 200mm at two sides of the weighing plate, the bottom of the auxiliary beam is provided with a first panel and a first bolt hole which are matched and assembled with the main beam, the main beam comprises a second upper panel, a second vertical plate, a first lower panel, a second rib plate, a first lifting lug and a second rib plate, the first bolt hole is welded at intervals of 1m at two sides of the first vertical plate, and the bolt hole of the second bolt hole corresponds to the first bolt hole, the cast iron plate comprises a second panel and a second lifting lug, the second lifting lug is matched with the first lifting lug, and rib plates III are distributed on the second panel.

Furthermore, the cast iron plate adopts heat-resistant RTCr, and the heat-resistant temperature in the air is 550 ℃.

Furthermore, the height of the lower part of the rib plate is 10mm, so that the contact between the rib plate I and the lower surface plate of the main beam is prevented, and the equipment abrasion is reduced.

Furthermore, the main beam, the auxiliary beam, the first lifting lug and the second lifting lug are welded by adopting double-sided groove welding, and the main beam is connected with the auxiliary beam through M30X 100 bolts.

Furthermore, all the gaps of the auxiliary beams and the corners of the damaged platform are welded with anchoring grooves, and pouring and leveling are carried out through corundum refractory castable.

Compared with the prior art, the utility model has the advantages that: the fire door rail fracture problem is improved, the problems that the girder is deformed by impact of dropped scrap steel, the cast iron plate of the girder protection plate is easy to drop and the girder is baked by splashing steel slag are solved, the fire door is stable in operation and is successfully transformed, and the fire door can be popularized and used.

Drawings

Fig. 1 is a schematic front view of the present invention before modification.

Fig. 2 is a schematic side view of the present invention before modification.

Fig. 3 is a schematic front view of the present invention after modification.

Fig. 4 is a schematic side view of the present invention after modification.

Fig. 5 is a schematic structural front view of the modified secondary beam of the utility model.

Fig. 6 is a side structural schematic view of the reformed secondary beam of the present invention.

Fig. 7 is a front structural schematic view of the modified main beam of the utility model.

Fig. 8 is a side structural schematic view of the modified main beam of the utility model.

Fig. 9 is a schematic front view of a modified cast iron plate according to the present invention.

Fig. 10 is a side view of a modified cast iron plate according to the present invention.

As shown in the figure: 1. the main beam comprises a main beam body, 2, cast iron plates, 3, bolts, 4, auxiliary beams, 5, rails, 6, first vertical plates, 7, first panels, 8, first bolt holes, 9, weighing plates, 10, upper panels, 11, second vertical plates, 12, first rib plates, 13, lower panels, 14, second rib plates, 15, first lifting lugs, 16, second bolt holes, 17, second panels, 18, second lifting lugs, 19 and third rib plates.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A converter fire-blocking door rail fracture transformation device comprises a main beam 1, a cast iron plate 2, bolts 3, an auxiliary beam 4 and a rail 5, wherein the main beam 1 is welded by a Q235 steel plate with the thickness of 40mm through welding parts, the auxiliary beam is welded by a Q235 steel plate with the thickness of 30mm, because the position of a fire-blocking door is fixed, the main beam and the auxiliary beam are in an eccentric 100mm form, the central lines of the main beam 1, the auxiliary beam 4 and the rail 5 are all on the same straight line, the auxiliary beam 4 is provided with a weighing plate 9, vertical plates 6 with the thickness of 30mm are welded at intervals of 200mm on two sides of the weighing plate 9, the bottom of the auxiliary beam 4 is provided with a panel I7 and bolt holes I8 which are matched and assembled with the main beam 1, the structure is adopted to ensure that the rail is stressed more uniformly, the main beam can be protected from being impacted by dropped waste steel, and simultaneously, the converter steel slag splashing is prevented from directly contacting the main beam, so as to reduce the damage to the main beam, the main beam 1 comprises an upper panel 10, a second vertical plate 11, a first rib plate 12, a lower panel 13, a second rib plate 14, a first lifting lug 15 and a second bolt hole 16, the first lifting lug 15 is arranged at the lower part of the upper panel 10, the original shearing force of the lifting lug is changed into self-weight tension, so that the stress is smaller and the lifting lug can be well protected, the first rib plate 12 and the second rib plate 14 are welded at the two sides of the second vertical plate 11 at the interval of 1m, the second bolt hole 16 corresponds to the first bolt hole 8, so that the bearing capacity of the main beam is stronger, the cast iron plate 2 comprises a second panel 17 and a second lifting lug 18, the second lifting lug 18 is matched with the first lifting lug 15, and the second panel 17 is distributed with a third rib plate 19.

The cast iron plate 2 adopts heat-resistant RTCr, and the heat-resistant temperature in the air is 550 ℃.

The height of the lower part of the rib plate I12 is 10mm, so that the rib plate I12 is prevented from contacting with the lower panel 13 of the main beam 1, and equipment abrasion is reduced.

The main beam 1, the secondary beam 4, the first lifting lug 15 and the second lifting lug 18 are welded by adopting double-sided groove welding, and the main beam 1 and the secondary beam 4 are connected through M30X 100 bolts.

And all the gaps of the auxiliary beams 4 and the corners of the damaged platform are welded with anchoring grooves, and pouring and leveling are carried out through corundum refractory castable.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a converter keeps off fire door track fracture transformation equipment which characterized in that: the combined type steel rail comprises a main beam (1), a cast iron plate (2), bolts (3), an auxiliary beam (4) and a rail (5), wherein the main beam (1) is welded by a welding piece through a Q235 steel plate with the thickness of 40mm, the auxiliary beam (4) is welded by a Q235 steel plate with the thickness of 30mm, the main beam (1) and the auxiliary beam (4) are in an eccentric 100mm form, the central lines of the main beam (1), the auxiliary beam (4) and the rail (5) are all on the same straight line, a weighing plate (9) is arranged on the auxiliary beam (4), vertical plate I (6) with the thickness of 30mm is welded at intervals of 200mm on two sides of the weighing plate (9), a first panel (7) and a first bolt hole (8) which are matched and assembled with the main beam (1) are arranged at the bottom of the auxiliary beam (4), and the main beam (1) comprises an upper panel (10), a second vertical plate (11), a first rib plate (12), a lower panel (13), a second rib plate (14), The lifting device comprises a first lifting lug (15) and a second bolt hole (16), wherein the first lifting lug (15) is arranged at the lower part of the upper panel (10), rib plates (12) and rib plates (14) are welded on two sides of the second vertical plate (11) at intervals of 1m, the bolt hole (16) corresponds to the bolt hole (8), the cast iron plate (2) comprises a panel II (17) and a lifting lug II (18), the lifting lug II (18) is matched with the lifting lug I (15), and rib plates III (19) are distributed on the panel II (17).

2. The converter fire door rail fracture modification apparatus according to claim 1, wherein: the cast iron plate (2) adopts heat-resistant RTCr, and the heat-resistant temperature in the air is 550 ℃.

3. The converter fire door rail fracture modification apparatus according to claim 1, wherein: the height of the lower part of the rib plate I (12) is 10mm, so that the rib plate I (12) is prevented from contacting with the lower panel (13) of the main beam (1), and the equipment abrasion is reduced.

4. The converter fire door rail fracture modification apparatus according to claim 1, wherein: the main beam (1), the auxiliary beam (4), the first lifting lug (15) and the second lifting lug (18) are welded by adopting double-sided groove welding, and the main beam (1) and the auxiliary beam (4) are connected through M30X 100 bolts.

5. The converter fire door rail fracture modification apparatus according to claim 1, wherein: and all the gaps of the auxiliary beams (4) and the corners of the damaged platform are welded with anchoring grooves, and pouring and leveling are carried out through corundum refractory castable.