CN104451021A

CN104451021A - Furnace falling method

Info

Publication number: CN104451021A
Application number: CN201410700563.1A
Authority: CN
Inventors: 刘磊; 薛莹; 曹恩龙
Original assignee: China MCC20 Group Corp Ltd
Current assignee: China MCC20 Group Corp Ltd
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2015-03-25
Anticipated expiration: 2034-11-28
Also published as: CN104451021B

Abstract

The invention relates to a furnace falling method. The furnace falling method comprises the following steps: 1, placing a driving side foundation and a non-driving side foundation on the left side and the right side of a jack horse, and correspondingly placing a driving side bearing base pedestal and a non-driving side bearing base pedestal at the upper part of the jack horse; 2, erecting the jack horse, and placing jacks between upright columns of the jack horse and a converting furnace; 3, drawing a horizontal reference line at a 500mm position of each of the four upright columns from the top surface, and according to a principle that each furnace falling amount does not surpass 3mm of the length of the upright column, drawing angle lines, wherein starting ends of the angle lines start from an endpoint of the horizontal reference line and endpoints of the angle lines reach the edge of the upright column, and the number of the angle lines is set according to the total furnace falling length; 4, connecting the driving side bearing base pedestal and the non-driving side bearing base pedestal with a driving side bearing base and a non-driving side bearing base through bolts before furnace falling, and alternately falling the furnace by thermally melting the upright columns by using a cutting gun in a sequence from a driving side to a non-driving side until the driving side bearing base and the non-driving side bearing base fall down to the driving side bearing base pedestal and the non-driving side bearing base pedestal. The furnace falling method is low in construction cost, safe and reliable.

Description

Stove method is fallen

Technical field

The present invention relates to and a kind ofly fall stove method when converter hydraulic jacking device sudden failure.

Background technology

As time goes on, when part large hydraulic jacking apparatus just under arms uses many, and environment for use is severe, and therefore the function of equipment declines to some extent; Add the composite factor impacts such as the voltage of supply instability of working-yard, cause hydraulic jacking device easy sudden failure when pressure-bearing.In order to ensure construction speed under the prerequisite of construction safety, which kind of method can process this emergency case by, the technological literacy of unit in charge of construction is had higher requirement.

Summary of the invention

The present invention is intended to the defect overcoming prior art, and provide one to fall stove method, construction cost is low, safe and reliable.

In order to solve the problems of the technologies described above, the present invention is achieved in that

Stove method falls in one, it is characterized in that, comprises the steps:

Step one: place driving side basis and non-drive side basis respectively in the left and right sides of stand, and correspondence places drive-side shaft bearing base and non-drive side bearing block base at an upper portion thereof;

Step 2: build stand;

Stand comprises column and diagonal brace, and four root posts are vertically placed, between column and the bottom of column, weld diagonal brace; The stand put up is placed on flat-bed trailer;

Step 3: draw angle line;

At four root post distance standardized of end face 500mm place horizontal reference lines, the initiating terminal of angle line is the mid point of horizontal reference line, the terminal of angle line is the edge of column, according on average falling the principle that stove is no more than the 3mm of strut length at every turn, mark angle line, the quantity of angle line is according to the total length setting of falling stove;

Step 4: place screw block between column and converter, and stokehold is falling by good with bolt string between the drive-side shaft bearing of drive-side shaft bearing base and non-drive side bearing block base and converter both sides and non-drive side bearing support, then the sequence alternate according to driving side, non-drive side adopts burning torch to make the method for column hot melt fall stove, till being down on drive-side shaft bearing base and non-drive side bearing block base by drive-side shaft bearing and non-drive side bearing support.

Described falls stove method, it is characterized in that, described column adopts H profile steel or weldless steel tube.

The invention has the beneficial effects as follows: solve the difficult problem that hydraulic jacking device sudden failure causes converter to push away stove cannot completing, adopt burning torch make the H profile steel of support body of heater or weldless steel tube column hot melt and slowly decline, be finally down to installation site.It is low, safe and reliable that this kind of method has construction cost, and save large-scale crane, operating efficiency is high, remarkable in economical benefits.

Accompanying drawing explanation

Below in conjunction with drawings and embodiments, the present invention is described in further detail:

Fig. 1 is structural representation of the present invention.

Fig. 2 is the enlarged diagram of part A.

Embodiment

As shown in Figure 1: stove method falls in one, comprises the steps:

Step one: place driving side basis 9 and non-drive side basis 10 respectively in the left and right sides of stand, and correspondence places drive-side shaft bearing base and non-drive side bearing block base at an upper portion thereof;

Step 2: build stand 6;

Stand comprises column 61 and diagonal brace, and four root posts are vertically placed, between column and the bottom of column, weld diagonal brace; The stand put up is placed on flat-bed trailer 5; Described column adopts H profile steel or weldless steel tube;

Step 3: draw angle line;

As shown in Figure 2: at four root post distance standardized of end face 500mm place horizontal reference lines 62, the initiating terminal of angle line 63 is the mid point of horizontal reference line, the terminal of angle line is the edge of column, according on average falling the principle that stove is no more than the 3mm of strut length at every turn, mark angle line, the quantity of angle line is according to the total length setting of falling stove;

Step 4: place screw block 4 between column and converter, for ensureing safety, falling stokehold by good with bolt string between the drive-side shaft bearing 8 of drive-side shaft bearing base 7 and non-drive side bearing block base 3 and converter 1 both sides and non-drive side bearing support 2, prevent dislocation; Then the sequence alternate according to driving side, non-drive side adopts burning torch to make the method for column hot melt fall stove, till being down on drive-side shaft bearing base and non-drive side bearing block base by drive-side shaft bearing and non-drive side bearing support.

Claims

1. fall a stove method, it is characterized in that, comprise the steps:

Step one:

Place driving side basis and non-drive side basis respectively in the left and right sides of stand, and correspondence places drive-side shaft bearing base and non-drive side bearing block base at an upper portion thereof;

Step 2: build stand;

Step 3: draw angle line;

2. according to claim 1ly fall stove method, it is characterized in that, described column adopts H profile steel or weldless steel tube.