CN201099690Y - Steelmaking converter repair equipment - Google Patents

Abstract

The utility model provides a furnace repairing equipment for a steelmaking converter, which comprises a construction platform (1) outside the furnace and a derrick (2) inside the furnace. Insert the top beam (9) on the furnace roof to the lower part of the conical cavity of the furnace body, and hang the hanging pan (4) on the furnace roof beam (9) through the upside down chain of the lifting device (6); outside the furnace The horizontal transport raceway (1.1) of the construction platform (1) leads to the furnace inner derrick (2) through the maintenance hole (10) of the furnace body. Furnace conical chamber construction platform (7) is installed at the lower end of the furnace derrick (2), and the conical cavity construction platform (7) is an assembled structure, including two beams (7.2) and two longitudinal beams (7.1) cross-connected The main beam on the lower frame of the furnace derrick and the support beam (7.3) outside the lower frame of the furnace derrick connecting adjacent main beams. The hanging pan is hung on the I-beam beam on the furnace top through the upside-down chains (6) of four electric hoists.

Description

Steelmaking converter repair equipment

technical field

The utility model relates to furnace repairing equipment for a steelmaking converter, which belongs to the field of repairing a steelmaking converter.

Background technique

The bottom of the overall converter furnace is a dead bottom, so the construction can only be carried out by the upward repair method. Generally, special furnace repair equipment such as furnace repair towers are used, which is convenient for refractory material transportation and construction personnel to enter and exit, and is also easy to organize construction to ensure construction quality and safety.

If there is no special furnace repair equipment and the simple upward repair method is used for construction, scaffolding can be set up in the furnace and then a springboard can be laid for construction. The refractory material can enter from inside the furnace, or through the upper opening of the furnace shell. This will bring a lot of inconvenience to the transportation of materials and the entry and exit of construction personnel. At the same time, the construction is relatively difficult, so the construction must be carefully organized.

Although the furnace tower repair is safe and effective, it is expensive (about RMB: 9 million yuan) and needs to be imported from abroad. At the same time, the furnace tower repair is only suitable for the movable upper smoke hood of the converter. Only this type of furnace can hoist the repair tower into the furnace as a whole. For converters whose upper hood is not movable, the repair tower cannot be used. Based on the above reasons, domestic converter construction rarely adopts furnace tower repair, and generally adopts simple upward repair method, which is prone to wear and tear, low construction safety, difficult construction and low efficiency.

Contents of the invention

The purpose of this utility model is to design a steelmaking converter repairing equipment with small brick loss, low construction cost, safe construction, high degree of mechanization, and reduced labor intensity of operators.

Technical scheme of the present utility model: The steelmaking converter repairing equipment of the present utility model includes a construction platform 1 outside the furnace and a derrick 2 inside the furnace, beams 8 and 9 are arranged on the top of the furnace roof, and the derrick 2 inside the furnace is fixed on the beam 9 on the furnace roof Insert, insert the upper opening of the furnace roof to the lower part of the conical chamber of the furnace body, the hanging plate 4 in the furnace is hung on the beam 9 of the furnace roof through the inverted chain of the lifting device 6; Lead to the derrick 2 in the furnace.

In the steelmaking converter repairing equipment, the lower end of the furnace derrick 2 is equipped with a construction platform 7 for the conical cavity of the furnace body. The construction platform 7 for the conical cavity is an assembled structure, including two beams 7.2 and two longitudinal beams 7.1 cross-connected The main beam on the lower frame of the derrick in the furnace and the support beam 7.3 outside the lower frame of the derrick in the furnace, connecting adjacent main beams.

In the steelmaking converter repairing equipment, the hanging pan is hung on the I-beam beam on the top of the furnace through the inverted chains 6 of four electric hoists, and the length of the inverted chain is such that the hanging pan reaches the bottom of the furnace.

In the steelmaking converter repairing equipment, the channel 1.1 of the construction platform outside the furnace is a horizontal transport raceway.

In the steelmaking converter repairing equipment, the hanging pan is an assembled structure, including a hanging pan skeleton connected by horizontal and vertical beams and a pan surface composed of multiple plates.

The furnace repairing equipment for the steelmaking converter has a hanging basket 3 suspended by the reverse chain of the electric hoist on the crossbeams 8 and 9 on the top of the furnace.

The effect of the utility model: the loss of bricks is small, the construction cost is low; the safety of construction is improved; the degree of mechanization is increased. Compared with special furnace repair equipment, the cost is low; compared with the simple upward repair construction method, the construction is simple and safe, and the labor intensity of the operator is reduced.

Description of drawings

Fig. 1 is the overall structural representation of the utility model.

Fig. 2 is a schematic view along the direction A of Fig. 1 .

Fig. 3 is a schematic diagram of the skeleton structure of the tapered cavity construction platform.

Fig. 4 is a schematic diagram of the skeleton structure of the hanging pan.

Detailed ways

As shown in Figure 1 and Figure 2: The steelmaking converter repairing equipment of the present utility model includes the construction platform 1 outside the furnace and the derrick 2 inside the furnace, and there are beams 8 and 9 on the top of the furnace, and the main beam 8 is 20# I-beam , Secondary beam 9 is 16# channel steel. Furnace derrick 2 is fixed on the furnace top beam 9, inserted into the upper opening of the furnace roof to the lower part of the conical cavity of the furnace body, and the furnace inner hanging plate 4 is hung on the furnace roof beam 9 through four lifting devices 6, and the lifting device 6 is inverted The length of the chain is as the criterion that the hanging pan reaches the bottom of the furnace, and four 2-ton hand-drawn chains 11 are configured as auxiliary positioning ropes.

The channel 1.1 of the construction platform 1 outside the furnace leads to the furnace inner derrick 2 by the furnace maintenance opening 10 . Channel 1.1 is a horizontal transport raceway.

Furnace body tapered cavity construction platform 7 is installed at the lower end of derrick 2 in the furnace. There is the hanging basket 3 that is hung by the reverse chain of the electric hoist 5 on the top beam 8 of the stove top. The hanging basket is used to transport refractory materials, and one electric hoist is used for lifting (the specifications are configured according to actual needs).

As shown in Figure 3: the tapered cavity construction platform 7 is an assembled structure, and its skeleton includes a main beam cross-connected on the lower frame of the furnace derrick by two crossbeams 7.2 and two longitudinal beams 7.1 and connected outside and outside the lower frame of the furnace derrick. The frame formed by the supporting beams 7.3 between adjacent main beams, and then the platform boards 7.4, 7.5 are laid on the frame to form a construction platform. Platform plate 7.4,7.5 respectively has two pieces.

As shown in Figure 4: the suspension pan is an assembled structure, and its skeleton is connected by a beam 4.1, a vertical beam 4.2 and a round frame 4.3, and a suspension pan composed of multiple platform boards is placed on the suspension pan skeleton. The lifting of the hanging pan in the furnace adopts 4 lifts with a lifting weight of 2000kg as the electric uplink, and the hanging pan is connected to the furnace roof beam through the electric and manual uplink.

The track beam of the electric hoist in the furnace is 20# I-beam, the main beam of the derrick is 16# channel steel, the vertical bar, cross bar and support bar of the derrick and platform are ∠75mm*75mm*7mm, and each connecting plate is t=8mm steel plate . Each bar is connected with the connecting plate by a screw.

Instructions:

1. Assemble the construction platform 1 outside the furnace on site, and assemble the horizontal transport raceway and the derrick inside the furnace; the parts of the derrick inside the furnace can also be hung in the furnace and assembled in the furnace;

2. Connect the horizontal transport raceway with the maintenance hole 10 of the furnace body;

3. Through the construction platform outside the furnace and the horizontal transport raceway, the components used in the assembly of the derrick 2 and the suspension plate in the furnace are transported to the converter mouth;

4. Install the track beam of the electric hoist and the main beam of the derrick at the furnace mouth;

5. Put it into the furnace to assemble the derrick 2 and the conical cavity construction platform 7 (the construction platform 7 only assembles the lower part of the derrick close to the side of the maintenance hole);

6. Introduce the electric hoist and the electric chain down from the construction hole to the derrick construction platform, and lift the electric hoist to the track beam and install it by pulling the chain down by hand;

7. Put the aluminum alloy telescopic ladder into the furnace as a passage for the construction personnel to go up and down, assemble the hanging pan skeleton in the furnace at the bottom of the furnace, and lay the hanging pan platform board, and lift the assembled hanging pan 4 to the furnace derrick 2 At the mouth, the furnace bottom bricks are built by masonry. After the furnace bottom bricks are built, the hanging pan is lowered, and the furnace wall bricks are built on the hanging pan.

8. When the furnace wall is bricked to the lower part of the construction hole, the frame of the derrick construction platform 7 in the furnace is assembled, the platform plate on the hanging pan is removed and installed on the derrick platform, and the hanging pan is placed on the bottom of the furnace and disassembled. At the same time, remove the electric hoist and electric chain down, and transport the spare parts out of the furnace through the maintenance hole.

9. Use the derrick platform 2 in the furnace to build a conical cavity, and at this time, the refractory material enters from the furnace mouth.

10. After all the refractory materials in the furnace are built, remove the derrick from the furnace mouth.

Claims (7)

1. a steel-making converter is repaiied furnace apparatus, comprise derrick (2) in outer operation platform (1) of stove and the stove, it is characterized in that: crossbeam (8,9) arranged in that furnace roof is suitable for reading, the interior derrick (2) of stove is fixed on the furnace roof crossbeam (9), the insertion furnace roof is suitable for reading to body of heater conical cavity bottom, and hanging scaffold (4) is hung on furnace roof crossbeam (9) by the jack of lift technique (6) in the stove; The passage (1.1) of the outer operation platform (1) of stove passes to derrick (2) in the stove by body of heater service hatch (10).

2. steel-making converter according to claim 1 is repaiied furnace apparatus, it is characterized in that: derrick (2) lower end is equipped with body of heater conical cavity operation platform (7) in the stove, conical cavity operation platform (7) is a packaging assembly, include two crossbeams (7.2) and two longerons (7.1) cross connection in stove the girder on the derrick underframe and in stove outside the derrick underframe, connect the strutbeam (7.3) between the adjacent girder.

3. steel-making converter according to claim 1 and 2 is repaiied furnace apparatus, it is characterized in that: hanging scaffold is hung on furnace roof joist steel crossbeam by the jack (6) of four electric hoists, and jack length is so that hanging scaffold arrives furnace bottom is as the criterion.

4. steel-making converter according to claim 1 and 2 is repaiied furnace apparatus, it is characterized in that: the passage (1.1) of the outer operation platform of stove is a level transportation raceway.

5. steel-making converter according to claim 1 and 2 is repaiied furnace apparatus, it is characterized in that: hanging scaffold is a packaging assembly, comprises the card that hanging scaffold skeleton that beam anyhow couples together and polylith plate constitute.

6. steel-making converter according to claim 1 and 2 is repaiied furnace apparatus, it is characterized in that: furnace roof suitable for reading have the hanging basket of hanging by the jack of electric hoist (3) is arranged on the crossbeam (8).

7. steel-making converter according to claim 1 and 2 is repaiied furnace apparatus, it is characterized in that: 4 of hanging scaffold (4) configurations pull jack (11) as the assist location rope.

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