CN201105363Y

CN201105363Y - Cutter bracket for perforating blast furnace tuyere

Info

Publication number: CN201105363Y
Application number: CNU2007200157944U
Authority: CN
Inventors: 常伟; 李汝波; 张晓庆; 朱相君; 杨丽娟
Original assignee: ANGANG CONSTRUCTION CONSORTIUM Co Ltd
Current assignee: ANGANG CONSTRUCTION CONSORTIUM Co Ltd
Priority date: 2007-11-07
Filing date: 2007-11-07
Publication date: 2008-08-27
Anticipated expiration: 2017-11-07

Abstract

The utility model provides a cutter bracket used for blast furnace air inlet opening, which is characterized in that a main rod is chosen, and the end terminal of the main rod is fixed with a centering gauge. A cutting gun angle bracket, a roller bracket and a nozzle rotating sleeve are arranged on the main rod in sequence and can slide on the main rod. The cutter bracket has the advantages that the angle of the cutting gun and the radius of the cutting radius are adjustable, which makes the cutting line uniform, cutting surface extremely smooth and no zigzag, thus meeting the requirement of job site, improving installing precision effectively, ensuring installing quality, saving work efficiency by 2 to 3 times. Besides, with simple manufacture, convenient operation, flexibility, high work efficiency, portability and convenient safekeeping, the cutter bracket can be not only used in blast furnace construction but also be popularized to the opening construction of other thick plate-structures.

Description

A kind of blast-furnace tuyere perforate cutter holder

Technical field

The utility model belongs to a kind of machining drilling tool, specifically is a kind of blast-furnace tuyere perforate cutter holder that is used for.

Background technology

At present, along with the development of ironmaking technology, newly-built large blast furnace engineering plays huge impetus to the economic development of metallurgy industry.Therefore, during newly-built or overhaul blast furnace, to the on-the-spot perforate of last furnace shell structure, mounting process has proposed requirements at the higher level.

It is that a difficulty of construction is very big that air port flange on the furnace shell is installed, technical quality requires high work, can on same band furnace shell (steel plate that Ф 30～Ф 80mm is thick), leave tens tuyere notches accurately to dozens of, not only have influence on the installation accuracy of air port flange, and be related to index, usage factor and service life that blast furnace is produced.

It mouthful is to make model and be covered on the furnace shell coordinate cross hairs after the line through amplifying sample by the drawing data that traditional blast furnace blows in, and cuts by hand; Not only the line of cut after the cutting is uneven by hand, and greatest drawback is that cutting angle is inconsistent, often changes, and line of cut has zigzag, causes and to design the flange tapering unequal, and error is excessive, and furnace shell steel plate thickness is bigger, and deviation is bigger; During mounting flange, must have point of contact after inserting and collide, at this moment must extract out, carry out the repairing of cut point repeatedly, cause clearance gap excessive like this; When furnace shell and air port flange welded under big gap state, the easiest concentrating because of metal welded the hot and cold crackle of fragility that produces, and welded again after need handling through carbon arc air gouging, caused the artificial waste that reaches material.In addition, also cause the junction point deviation of the center of each air port flange and body of heater center line excessive easily because of clearance gap is excessive, can not meet design requirement.

The utility model content

The utility model provides a kind of blast-furnace tuyere perforate cutter holder, has in order to solve the line of cut that exists when blast furnace blows in mouthful that zigzag, error are excessive, cutting waits problem slowly.

The purpose of this utility model is to realize like this, its feature is to select a mobile jib, at the terminal fixedly center gauge of mobile jib, burning torch angle carriage, rolling wheel support are installed on mobile jib successively, are chewed a revoling tube, and burning torch angle carriage, rolling wheel support, chew a revoling tube and slide before and after can be on mobile jib, locate behind the sizing.

Concrete structure of the present utility model has, and burning torch angle carriage is made up of sleeve pipe, support, burning torch carriage, and support is installed on the sleeve pipe, and the burning torch carriage is assemblied on the support, in the chute slip of support.

Concrete structure of the present utility model also has, and is equipped with idler wheel mechanism on the rolling wheel support and is installed on the rolling wheel support sleeve pipe by bolt.

Advantage of the present utility model and effect be, the angle of cutting gun, the radius of cutting is adjustable, and line of cut is evenly equated, the cutting surface is extremely smooth, and no zigzag satisfies the requirement of job site, effectively improve installation accuracy, guaranteed installation quality, saved 2～3 times of work efficiency.It makes simple, and is easy to operate, flexible, and high efficiency is easy to carry, takes care of, and the utility model not only can be used for the blast furnace construction, can also be generalized in the perforate construction of other thick plate structures.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the side view of the utility model burning torch angle bracket portion,

Fig. 3 is the schematic diagram of the utility model rolling wheel support,

Fig. 4 chews the side view of a revoling tube for the utility model.

The specific embodiment

Below in conjunction with accompanying drawing specific embodiment of the utility model is elaborated.

As shown in Figure 1, select a mobile jib 1, at mobile jib 1 terminal fixedly center gauge 3, burning torch angle carriage 2 is installed on mobile jib 1 successively, rolling wheel support 4, chew a revoling tube 5, it is located by bolt respectively, the burning torch frame is enclosed within on the carriage of burning torch angle carriage, burning torch frame mouth is inserted in to be chewed in the revoling tube 51, rolling wheel support 4 is installed in burning torch angle carriage 2, chew between the revoling tube 5, roller plays a part to support and the drive burning torch moves in a circle around center gauge 3, because burning torch angle carriage, rolling wheel support, chewing a revoling tube can slide on mobile jib, can adjust the radius of gyration of the different air ports of cutting flange hole size.

As shown in Figure 2, burning torch angle carriage is made up of sleeve pipe 21, support 22, burning torch carriage 23, support 22 is installed on the sleeve pipe 21, burning torch carriage 23 is assemblied on the support 24 by bolt, nut, and in the chute of support, slide, after mixing up angle, the angle in the time of can adjusting burning torch cutting air port flange orifice plate locatees by bolt, nut.

As shown in Figure 3, being equipped with idler wheel mechanism 43 on the rolling wheel support is installed on the rolling wheel support sleeve pipe 42 by bolt 41.

As shown in Figure 4, chewing has sleeve pipe 51 on the revoling tube 5, and sleeve pipe 51 is assembled on the casing support 52 by bolt, nut.

The course of work of the present utility model is such:

(the cutting radius equals to calculate radius and adds 2mm to select for use trigonometric function and arc length formula to calculate cutting radius and arc length on request, this is a clearance gap), the burning torch frame is located by bolt on the angle carriage, rolling wheel support transfers to the suitable radius of gyration, burning torch is chewed head and is inserted in the revoling tube, the distance that center gauge is chewed head to burning torch equals the radius of gyration, the air port flange tapering card model locking burning torch of determining by designing requirement chew brilliance degree, locate by bolt; The burning torch center gauge fixes on the center of circle that finds, and burning torch flame is adjusted to optimum state cut perforate, after all cutting is finished, with suspender the stove skin that is cut is hung out; In like manner can produce slotted eye.

Claims

1, a kind of blast-furnace tuyere perforate cutter holder, it is characterized in that, at the terminal fixedly center gauge (3) of mobile jib (1), burning torch angle tray rack (2), rolling wheel support (4) are installed on mobile jib successively, are chewed a revoling tube (5), and burning torch angle carriage (2), rolling wheel support (4), chew a revoling tube (5) and go up at mobile jib (1) and slide.

2, a kind of blast-furnace tuyere perforate cutter holder according to claim 1, it is characterized in that, burning torch angle carriage is made up of sleeve pipe (21), support (22), burning torch carriage (23), support (22) is installed on the sleeve pipe (21), burning torch carriage (23) is assemblied on the support (22) by bolt, nut, and slides in the chute of support (22).

3, a kind of blast-furnace tuyere perforate cutter holder according to claim 1 is characterized in that, is equipped with idler wheel mechanism (43) on the rolling wheel support and is installed on the rolling wheel support sleeve pipe (42) by bolt (41).

4, a kind of blast-furnace tuyere perforate cutter holder according to claim 1 is characterized in that, chewing has sleeve pipe (51) on the revoling tube (5), and sleeve pipe (51) is assembled on the casing support (52) by bolt, nut.