CN102311074A - Converter afterheat boiler maintenance equipment and boiler maintenance method - Google Patents

Abstract

The invention discloses converter afterheat boiler maintenance equipment and a boiler maintenance process. The equipment comprises a rail beam (1), a moving platform (2), an electric hoist (3) and a manned suspension cage (5), wherein the rail beam (1) is arranged between the lower part of the main steelmaking plant building roof and the top bending section of a converter afterheat boiler and has a guide function, the moving platform (2) is arranged on the rail beam (1), the electric hoist (3) is arranged on the moving platform (2), and the manned suspension cage (5) is driven by a suspension cage lifting device (4). The converter afterheat boiler maintenance equipment and the boiler maintenance method have the advantages that simplicity and practicability are realized, the investment is little, the efficiency is high, the climbing object building at a converter opening is not needed during the boiler maintenance, the maintenance is simple, and the reliability is high.

Description

A converter waste heat boiler maintenance equipment and furnace repair method

technical field

The invention relates to boiler maintenance equipment and a furnace repair process, in particular to a converter waste heat boiler maintenance equipment and a furnace repair method.

Background technique

At present, the maintenance of large and medium-sized converter waste heat boilers at home and abroad generally adopts the furnace repair process of temporary manual jumping. When repairing the furnace, set a jumper between the furnace mouth of the converter and the operating platform, and the maintenance personnel determine the height of the temporary jumper on top of the jumper according to the specific location of the waste heat boiler maintenance, and carry out maintenance on the furnace wall of the waste heat boiler And maintenance. This method has disadvantages such as poor working conditions, time-consuming and laborious, low efficiency, and low safety.

Contents of the invention

The technical problem to be solved by the present invention is to provide a converter waste heat boiler maintenance equipment and a furnace repair method, so that when the furnace is repaired, the furnace repair task can be successfully completed without setting a temporary jumper at the furnace mouth.

The technical solution of the converter waste heat boiler maintenance equipment of the present invention is as follows: the converter waste heat boiler maintenance equipment includes a track beam with a guiding function arranged between the roof of the steelmaking main workshop and the curved section on the top of the converter waste heat boiler, and a moving track beam installed on the track beam. Platforms, electric hoists on mobile platforms and manned cages driven by cage lifts.

The cage lifting device is equipped with a broken rope protector, which is mainly used for hoisting the manned cage.

The manned cage is provided with guide wheels.

The electric hoist is mainly used for disassembling and installing the manhole cover of the waste heat boiler.

In the furnace repairing method of the present invention, the operator stands on the platform to operate the mobile platform, the electric hoist, and the hoisting cage lifting device, including the following steps:

a) First move the mobile platform to the top of the converter waste heat boiler inspection hole;

b) After the electric hoist lifts the inspection hole cover, the mobile platform moves to the top of the platform next to the converter waste heat boiler inspection hole, and the electric hoist puts the inspection hole cover on the platform;

c) Maintenance personnel enter the manned cage on the platform, the mobile platform moves to the top of the manned cage, and after the cage lifting device lifts the manned cage, the mobile platform moves to the top of the converter waste heat boiler inspection hole;

d) The hoisting cage lifting device puts the manned hoisting cage into any part of the converter waste heat boiler that needs to be overhauled in the inspection hole, and the maintenance personnel stand in the manned hoisting cage to overhaul and maintain the furnace wall;

e) After the overhaul of the furnace wall is completed, the hoisting cage lifting device will lift the manned hoisting cage above the inspection hole of the waste heat boiler;

f) The mobile platform moves to the top of the platform next to the inspection hole of the converter waste heat boiler, and the hoisting cage lifting device puts the manned hoisting cage on the platform, and the maintenance personnel walk out of the manned hoisting cage;

g) The mobile platform moves above the inspection hole cover, the electric hoist lifts the inspection hole cover, the mobile platform moves above the waste heat boiler inspection hole, and the electric hoist covers the inspection hole cover on the waste heat boiler inspection hole.

The converter waste heat boiler maintenance equipment and the furnace repair method of the present invention are simple, practical, low in investment, high in efficiency, do not need to jump on the furnace mouth of the converter during furnace repair, simple in maintenance, and high in reliability.

Description of drawings

Figure 1 is a front view of the converter waste heat boiler maintenance equipment and furnace repair method;

Track beam 1, mobile platform 2, electric hoist 3, cage lifting device 4, manned cage 5, inspection hole cover 6, inspection hole 7, platform 8, track wheels 9, rope breakage protector 10, roof beam 11 , guide wheel 12.

Detailed ways

Below in conjunction with Fig. 1 description introduces the best implementation mode of device of the present invention:

As shown in FIG. 1 , the converter waste heat boiler maintenance equipment of the present invention includes a track beam 1 , a mobile platform 2 , an electric hoist 3 , a cage lifting device 4 , and a manned cage 5 .

The track beam 1 is installed on the roof beam 11 of the steelmaking main workshop.

The mobile platform 2 is installed on the track beam 1 by the track wheels 9 installed thereon.

Electric hoist 3, cage lifting device 4 and track wheel 9 are installed on the mobile platform 2.

The manned cage 5 is driven by the cage lifting device 4 to lift. The manned cage 5 is provided with 6 guide wheels 12, and the guide wheels 12 fall on the inner wall of the waste heat boiler to support and guide the manned cage 5.

The cage lifting device 4 is provided with a broken rope protector 10 .

Platform 8 is a high-span high-level bunker platform for bulk materials of the converter, which is located near the top bending section of the converter waste heat boiler.

The manhole cover plate 6 on the converter waste heat boiler is hoisted by the electric hoist 3 .

The method for repairing the converter waste heat boiler requires the operator to stand on the platform 8 to operate the mobile platform 2, the electric hoist 3, and the cage lifting device 4, including the following steps:

a) First move the mobile platform 2 to the top of the converter waste heat boiler inspection hole 7;

b) The electric hoist 3 lifts the inspection hole cover 6, the mobile platform 2 moves to the top of the platform 8 next to the converter waste heat boiler inspection hole 7, and puts the inspection hole cover 6 on the platform 8;

c) Maintenance personnel enter the manned cage 5 on the platform 8, the mobile platform 2 moves to the top of the manned cage 5, the cage lifting device 4 lifts the manned cage 5, and the mobile platform 2 moves to the converter waste heat boiler for maintenance Right above hole 7;

d) The cage lifting device 4 puts the manned cage 5 into any part of the converter waste heat boiler that needs to be repaired in the inspection hole 7, and the maintenance personnel stand in the manned cage 5 to perform maintenance on the furnace wall;

e) After the overhaul of the furnace wall is completed, the hoisting cage lifting device 4 lifts the manned hoisting cage 5 to the top of the waste heat boiler inspection hole 7;

f) The mobile platform 2 is moved to the top of the platform 8 next to the manhole 7 of the converter waste heat boiler, and the manned hanging cage 5 is placed on the platform, and the maintenance personnel walk out of the manned hanging cage 5;

g) The electric hoist 3 lifts the inspection hole cover 6, the mobile platform 2 moves above the waste heat boiler inspection hole 7, and the electric hoist 3 covers the inspection hole cover 6 on the waste heat boiler inspection hole 7.

Claims (4)

1. A converter waste heat boiler maintenance equipment, characterized in that it includes a track beam (1) with a guiding function arranged between the roof of the main steelmaking workshop and the curved section on the top of the converter waste heat boiler, and is installed on the track beam (1) The mobile platform (2), the electric hoist (3) on the mobile platform (2) and the manned cage (5) driven by the cage lifting device (4). 2. The maintenance equipment for converter waste heat boiler according to claim 1, characterized in that: the cage lifting device (4) is provided with a broken rope protector. 3. The maintenance equipment for converter waste heat boiler according to claim 1, characterized in that: said manned cage (5) is provided with guide wheels (12). 4. A furnace repair method using the converter waste heat boiler maintenance equipment described in claim 1 or 2 or 3, characterized in that the operator stands on the platform (8) to operate the mobile platform (2), electric hoist (3), Hanging cage lifting device (4), comprises the steps: a) First move the mobile platform (2) to the top of the converter waste heat boiler inspection hole (7); b) The electric hoist (3) lifts the inspection hole cover (6), moves the mobile platform (2) to the top of the platform (8) next to the converter waste heat boiler inspection hole (7), and puts the inspection hole cover (6) on the platform (8); c) Maintenance personnel enter the manned cage (5) on the platform (8), the mobile platform 2 moves above the manned cage (5), and the cage lifting device (4) lifts the manned cage (5) , the mobile platform (2) moves to directly above the converter waste heat boiler inspection hole (7); d) The cage lifting device (4) put the manned cage (5) into any part of the converter waste heat boiler that needs to be repaired in the inspection hole (7), and the maintenance personnel stand in the manned cage (5) to inspect the furnace wall Overhaul and maintenance; e) After the overhaul of the furnace wall is completed, the hoisting cage lifting device (4) lifts the manned hoisting cage (5) above the waste heat boiler inspection hole (7); f) The mobile platform (2) moves to the top of the platform (8) next to the converter waste heat boiler inspection hole (7), puts the manned hanging cage (5) on the platform (8), and the maintenance personnel walk out of the manned hanging cage (5 ); g) The electric hoist (3) lifts the inspection hole cover (6), the mobile platform (2) moves to the top of the waste heat boiler inspection hole (7), and the electric hoist (3) covers the inspection hole cover (6) on the waste heat Boiler inspection hole (7).

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