CN104561440A - Construction method for installing backing ring and furnace shell of converter - Google Patents

Abstract

The invention relates to a construction method for installing a backing ring and a furnace shell of a converter. The construction method is characterized in that a transportation supporting bracket of which the mouth part is of a square shape is manufactured, a jack is respectively placed on each group of uprights of the bracket and the bracket is placed on a buggy ladle on rails; the assembled backing ring and the furnace shell of the converter are placed on the jacks; the integral backing ring and furnace shell are synchronously jacked up by the jacks and the lower parts of a non-drive bearing and a drive bearing on the backing ring are enabled to be higher than an installed backing ring bearing seat drive end and a non-driven end bearing seat; the buggy ladle is pulled by a chain block to move to the installation position on the steel rails; the jacks fall back. The construction method has the advantages of high stability of the transportation supporting bracket, high installation accuracy, simplicity and safety for operation, low construction cost and short construction period.

Description

A kind of constructional method of installing for converter trunnion ring, furnace shell

Technical field

The present invention relates to a kind of constructional method of installing for converter trunnion ring, furnace shell, belong to metallurgical machinery equipment installation field.

Background technology

In metallurgical machinery installation work project, some large-scale mechanical means because workyard is narrow, the large installation requirement of equipment quality installed accurately, cannot direct overhead traveling crane or crane install etc., to bringing inconvenience and puzzlement in project installation.

During such as, converter in enterprise of Iron And Steel Co., Ltd 120t Converter Project project is installed, furnace shell diameter is 5920mm, high 8535mm, furnace shell net weight 130t.Backing ring external diameter 8090mm, internal diameter 6296mm, high 2000mm, add head bearing net weight 180t.After backing ring assembling, axial overall length 12050mm belongs to medium size installations category, because of reasons such as quality are large, setting accuracy is high, circumstance complication, crane, overhead traveling crane are not used, constrains converter trunnion ring, furnace shell normal mounting.

Summary of the invention

The object of the invention is to solve the problem that in converter trunnion ring, furnace shell installation, crane, overhead traveling crane are not used, a kind of safe constructional method of installing for converter trunnion ring, furnace shell simple to operate is provided.

Method of the present invention adopts following steps:

1) on civil engineering bearing support basis, first install lower part of backing ring driving end bearing support and non-transmision end bearing support;

2) making the oral area be made up of four groups of columns and crossbeam and oblique pull beam is square transfer of support bracket, respectively on the often group column of bracket places a screw block, is placed to by bracket on the buggy ladle on track;

3) furnace shell is assembled in converter trunnion ring, the converter trunnion ring assembled, furnace shell are placed on screw block;

4) with the whole backing ring of the synchronous jack-up of screw block, furnace shell, make the bottom of the non-drive bearing on backing ring and drive bearing higher than installing backing ring bearing support driving end, non-transmision end bearing support;

5) installation site is moved to jack traction buggy ladle at rail, adjust to transfer of support carrier center to overlap with the vertical medullary ray of converter, and the vertical axis of drive bearing on backing ring and non-drive bearing overlaps with the vertical axis of backing ring bearing support driving end and non-transmision end bearing support respectively;

6) fall screw block after rise, non-drive bearing and drive bearing are combined with lower part of non-transmision end bearing support and driving end bearing support respectively, namely complete complete installation.

Advantage of the present invention is: compare with other installation methods: under situation do not used by crane, overhead traveling crane, and as loaded down with trivial details in arranged tackleblock in employing windlass situation, lifting has a big risk, and equipment is easily damaged; Adopt method of the present invention that backing ring, furnace shell good stability in place are installed, not by time limitation, effect solve the equipment tonnage of installation large, install and need accurately, be unfavorable for the problems such as crane lifting equipment.There is transfer of support bracket good stability, high, the simple to operate safety of setting accuracy, executive cost is low, the duration is short advantage.

Accompanying drawing explanation

Fig. 1 is the construction schematic diagram of method of the present invention;

Fig. 2 is the side-view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

In figure: 1, furnace shell, 2, backing ring, 3, screw block, 4, temporary backing supports, and 5, column, 6, upper lateral side crossbeam, 7, middle part cross side crossbeam, 8, cross side crossbeam oblique straining beam, 9, lower, transverse bottom girder, 10, buggy ladle, 11, cat ladder, 12, non-drive bearing, 13, drive bearing, 14, upper longitudinal to crossbeam, 15, longitudinal middle part first crossbeam, 16, longitudinal middle part second cross beam, 17, longitudinal skew back straining beam, 18, the longitudinal bottom girder in bottom.

Embodiment

Embodiment

1) Altitude, medullary ray at the bottom of the equipment on backing ring driving end and non-transmision end bearing support civil engineering bearing support basis has been measured.First install lower part of backing ring shaft drive end bearing and non-transmision end bearing support.

2) making the oral area be made up of four groups of columns 5 and coaming plate is square transfer of support bracket, often organize column to be made up of (playing booster action) the column that two overlap side by side, with upper lateral side crossbeam 6 between four groups of columns, upper longitudinal is to crossbeam 14, middle part cross side crossbeam 7, longitudinal middle part first crossbeam 15, longitudinal middle part second cross beam 16, lower, transverse bottom girder 9, the longitudinal bottom girder 18 in bottom, and cross side crossbeam oblique straining beam 8, longitudinal skew back straining beam 17 assembly welding connects into the transfer of support bracket of a rigidity, transfer of support bracket is provided with cat ladder 11, each placement screw block 3 on the often group column of bracket, each screw block side is placed one group of temporary backing again and is supported 4, play buffering, stabilization, bracket is placed on the buggy ladle 10 on track,

3) furnace shell 1 is assembled in converter trunnion ring 2, the converter trunnion ring assembled, furnace shell are placed on screw block;

4) with the whole backing ring of the synchronous jack-up of screw block, furnace shell, make the bottom of the non-drive bearing 12 on backing ring and drive bearing 13 higher than installing backing ring bearing support driving end, non-transmision end bearing support;

5) installation site is moved to 10t jack traction buggy ladle at rail, adjust to transfer of support carrier center to overlap with the vertical medullary ray of converter, and the vertical axis of drive bearing on backing ring and non-drive bearing overlaps with the vertical axis of backing ring bearing support driving end and non-transmision end bearing support respectively;

6) fall screw block after rise, non-drive bearing and drive bearing are combined with lower part of non-transmision end bearing support and driving end bearing support respectively, namely complete complete installation.

Facts have proved, utilize transfer of support bracket installing converter backing ring, furnace shell, solve that converter installation site environment is narrow, factory building builds, large crane cyclotron radius, height-limited, the problem that overhead traveling crane is not used, reduce executive cost, improve setting accuracy and working efficiency, achieve good effect.

Claims (1)

1., for the constructional method that converter trunnion ring, furnace shell are installed, it is characterized in that:

1) on civil engineering bearing support basis, first install lower part of backing ring driving end bearing support and non-transmision end bearing support;

2) making the oral area be made up of four groups of columns and crossbeam and oblique pull beam is square transfer of support bracket, respectively on the often group column of bracket places a screw block, is placed to by bracket on the buggy ladle on track;

3) furnace shell is assembled in converter trunnion ring, the converter trunnion ring assembled, furnace shell are placed on screw block;

4) with the whole backing ring of the synchronous jack-up of screw block, furnace shell, make the bottom of the non-drive bearing on backing ring and drive bearing higher than installing backing ring bearing support driving end, non-transmision end bearing support;

5) installation site is moved to jack traction buggy ladle at rail, adjust to transfer of support carrier center to overlap with the vertical medullary ray of converter, and the vertical axis of drive bearing on backing ring and non-drive bearing overlaps with the vertical axis of backing ring bearing support driving end and non-transmision end bearing support respectively;

6) fall screw block after rise, non-drive bearing and drive bearing are combined with lower part of non-transmision end bearing support and driving end bearing support respectively, namely complete complete installation.