Metallurgical furnace top repairing auxiliary device

Abstract

The utility model provides a metallurgical furnace top repairing auxiliary device which comprises a plurality of stand columns arranged on the two sides of a furnace body, supporting frames are installed at the upper ends of the stand columns, all the supporting frames are located at the same height and exceed the furnace top in height, supporting beams are installed on the supporting frames on the same side, supporting beams are installed on the supporting frames on the two sides, and a cross arm support is installed between the two supporting beams. The two ends of the cross arm support stride over the joists and are located above the furnace top, a lifting hook is installed in the middle of the cross arm support, a brick hanging ring is hung at the bottom of the lifting hook, and a lengthened refractory brick used for repairing the furnace top is hung on the brick hanging ring. According to the utility model, the construction difficulty is reduced, the service life of the metallurgical furnace is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical furnaces, in particular to a metallurgical furnace top repair auxiliary device. Background Art

[0002] The roof of a metallurgical furnace is usually an arched structure, that is, a certain number of refractory bricks are built into an arched brick ring, and then a number of brick rings form the roof. There are several columns on both sides of the furnace body of the metallurgical furnace, and tie rods are installed at the top between the columns on both sides. The metallurgical furnace is enclosed by the columns and tie rods.

[0003] Since the refractory bricks on the top of the furnace are subjected to the impact of high-temperature heat flow during the operation of the metallurgical furnace, the thermal stress caused by repeated heating and cooling, and the erosion of the melt, the gaps between the refractory bricks gradually expand and need to be repaired by grouting in time, otherwise the high-temperature flames in the metallurgical furnace will spray out from the gaps, burn the tie rods, causing the tie rods to fail, and then cause the structure of the entire metallurgical furnace to be damaged. Sometimes some of the refractory bricks on the top of the furnace will sink or break. These faulty refractory bricks need to be replaced in time, otherwise the entire brick ring will disintegrate and collapse, causing a furnace roof collapse accident.

[0004] At present, the method adopted for grouting repair or replacement of faulty refractory bricks is that maintenance personnel walk and work on the furnace roof. The surface temperature of the furnace roof can reach 200℃~400℃, and the working conditions are extremely harsh. In addition, there is a risk of brick ring collapse when replacing faulty refractory bricks, posing a personal safety risk to maintenance personnel.

[0005] When replacing faulty refractory bricks, it is impossible to set up wooden arches in the furnace like conventional masonry, which makes the construction difficult. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a metallurgical furnace roof repair auxiliary device.

[0007] The specific scheme of the utility model is as follows: a metallurgical furnace roof repair auxiliary device, including a plurality of columns arranged on both sides of the furnace body, support frames are installed on the upper ends of the columns, all the support frames are located at the same height and the height exceeds the furnace roof, the support frames on the same side are equipped with support beams, the support frames on both sides are equipped with support beams, a cross arm bracket is installed between the two support beams, the two ends of the cross arm bracket are straddling the support beam and are located above the furnace roof, a hook is installed in the middle of the cross arm bracket, a brick hanging ring is hung at the bottom of the hook, and an extended refractory brick for repairing the furnace roof is hung on the brick hanging ring.

[0008] Preferably, the brick hanging ring includes two side plates, a certain distance is set between the two side plates, the top ends of the two side plates are provided with hooks cooperating with the hooks, the lower ends of the two side plates are provided with pin holes at the same position, brick eye pins are installed in the pin holes, the top ends of the extended refractory bricks are provided with pin holes, and the extended refractory bricks are suspended between the two side plates through the brick eye pins.

[0009] Preferably, the cross arm bracket includes two L-shaped brackets, the L-shaped brackets are hung upside down on the supporting beam, a slot frame is provided between the two L-shaped brackets, and both ends of the slot frame are fixedly connected to the L-shaped brackets.

[0010] Preferably, the shape of the trough frame is an arc shape similar to the shape of the furnace top.

[0011] Preferably, the support beam is an I-beam.

[0012] Compared with the prior art, the utility model has the following beneficial effects: simple structure, reliable performance, and convenient use. When the maintenance personnel are grouting and repairing the metallurgical furnace roof and replacing the faulty refractory bricks, they do not need to directly contact the high-temperature furnace roof surface, and also avoid the personal safety risk caused by the collapse of the furnace roof. By hanging the extended refractory bricks for repair on the cross arm bracket, the risk of it sinking is avoided, the construction difficulty is reduced, the furnace life of the metallurgical furnace is extended, and the maintenance cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model;

[0014] Figure 2 yes Figure 1 AA view;

[0015] Figure 3 yes Figure 2 A magnified view of the V position;

[0016] In the figure: 1. furnace roof; 2. column; 3. support frame; 4. support beam; 5. cross arm bracket; 6. hook; 7. brick hanging ring; 71. hook; 72. side plate; 8. extended refractory brick; 9. brick eye pin. DETAILED DESCRIPTION

[0017] like Figure 1-3 As shown, this embodiment provides an auxiliary device for repairing the furnace roof 1 of a metallurgical furnace, including a plurality of columns 2 arranged on both sides of the furnace body, support frames 3 are installed on the upper ends of the columns 2, all the support frames 3 are located at the same height and the height exceeds the furnace roof 1, support beams 4 are installed on the support frames 3 on the same side, support beams 4 are installed on the support frames 3 on both sides, a cross arm bracket 5 is installed between the two support beams 4, both ends of the cross arm bracket 5 straddle the support beam 4 and are located above the furnace roof 1, a hook 6 is installed in the middle of the cross arm bracket 5, a brick hanging ring 7 is hung at the bottom of the hook 6, and an extended refractory brick 8 for repairing the furnace roof 1 is hung on the brick hanging ring 7.

[0018] Preferably, the brick hanging ring 7 includes two side plates 72, and a spacing of 155 mm is provided between the two side plates 72, which can hold two refractory bricks with a thickness of 75 mm. The top ends of the two side plates 72 are provided with hooks 71 that cooperate with the hooks 6, and the lower ends of the two side plates 72 are provided with pin holes at the same position, and the pin holes are equipped with brick eye pins 9. The top ends of the elongated refractory bricks 8 are provided with pin holes, and the elongated refractory bricks 8 can be hung between the two side plates 72 through the brick eye pins 9. Preferably, the cross arm bracket 5 includes two L-shaped brackets, which are hung upside down on the supporting beam 4, and a slot frame is provided between the two L-shaped brackets, and both ends of the slot frame are fixedly connected to the L-shaped brackets.

[0019] Preferably, the shape of the trough frame is an arc shape similar to the shape of the furnace top 1.

[0020] Preferably, the support beam 4 is an I-beam. When the utility model is used for grouting repair of the metallurgical furnace roof 1, one or more cross arm brackets 5 are moved to the working position along the support beam 4, and the maintenance personnel stand on the cross arm bracket 5 to complete the work. If necessary, a layer of aluminum silicate fiber felt is laid on the cross arm bracket 5, and the cross arm bracket 5 is removed after the work is completed.

[0021] When it is necessary to replace the faulty refractory brick, move a cross arm bracket 5 to the top of the faulty refractory brick. The extended refractory brick 8 replacing the faulty refractory brick is processed from the side in advance, and a through hole of φ20mm is drilled, and then embedded between the two side plates 72 of the brick hanging ring 7; the brick eye pin 9 passes through the left plate 72, the extended refractory brick 8, and the right plate 72 in sequence, and the extended refractory brick 8 is hung up, and finally the hook 71 of the brick hanging ring 7 is hung with the hook 6, and then the upper end of the hook 6 is hung on the cross arm bracket 5, and the cross arm bracket 5 stays in this position to keep the hanging effect on the extended refractory brick 8.

Claims

1. A metallurgical furnace roof repair auxiliary device, characterized in that: It includes several columns arranged on both sides of the furnace body, support frames are installed on the upper ends of the columns, all the support frames are located at the same height and the height exceeds the furnace top, the support frames on the same side are equipped with supporting beams, and the support frames on both sides are equipped with supporting beams. A cross arm bracket is installed between the two supporting beams, and the two ends of the cross arm bracket span the supporting beam and are located above the furnace top. A hook is installed in the middle of the cross arm bracket, and a brick hanging ring is hung at the bottom of the hook, and an extended refractory brick for repairing the furnace top is hung on the brick hanging ring.

2. The metallurgical furnace roof repair auxiliary device according to claim 1, characterized in that: The brick hanging ring includes two side plates, a certain distance is set between the two side plates, the top ends of the two side plates are provided with hooks that cooperate with the hooks, the lower ends of the two side plates are provided with pin holes at the same position, brick eye pins are installed in the pin holes, the top ends of the extended refractory bricks are provided with pin holes, and the extended refractory bricks are suspended between the two side plates through the brick eye pins.

3. The metallurgical furnace roof repair auxiliary device according to claim 1, characterized in that: The cross arm bracket comprises two L-shaped brackets, the L-shaped brackets are hung upside down on the supporting beam, a slot frame is arranged between the two L-shaped brackets, and two ends of the slot frame are fixedly connected to the L-shaped brackets.

4. The metallurgical furnace roof repair auxiliary device according to claim 3, characterized in that: The shape of the trough frame is an arc shape similar to the shape of the furnace top.

5. The metallurgical furnace roof repair auxiliary device according to claim 1, characterized in that: The supporting beam is an I-beam.

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