CN202709742U

CN202709742U - Divided tap hole tubular brick structure

Info

Publication number: CN202709742U
Application number: CN 201220373309
Authority: CN
Inventors: 王利; 吴井强
Original assignee: Liaoning Fucheng Special Refractory Material Co Ltd
Current assignee: Liaoning Zhongmei Holding Co ltd
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-01-30
Anticipated expiration: 2022-07-31

Abstract

A divided tap hole tubular brick structure relates to a tap hole tubular brick for metallurgical furnaces. The structure of the divided tap hole tubular brick structure is as follows: the tubular brick is shaped like a frustum, and an annular projection is produced on the outer surface of the tubular brick. The slope Alpha of the surface of the tubular brick is equal to arctg (20/L), wherein L is the length of the tubular brick. Since each section of tubular brick is produced into the shape of the slopped frustum and the annular projection is produced on the surface of the tubular brick so that the surface is uneven, after being filled up, filler is solidified due to temperature rise, so that each section of tubular brick is fixed; because of the slope of the tubular brick and the uneven surface design, the resistance between the filler and the tubular brick is increased, consequently, the tubular brick is effectively prevented from coming off, and thereby the service life of the tubular brick is prolonged.

Description

A kind of split type steel-tapping hole tube brick structure

Technical field

The utility model is for the improvement that is used for metallurgical furnace steel-tapping hole tube brick structure.

Background technology

Metallurgical furnace is smelted the complete tubular type tapping of all adopting, and the existing mode that all adopts brick cup inner sleeve one pipe brick and between to fill loose shape material is finished, and brick cup is nonvolatil, and the pipe brick can often be changed.Because steel-tapping hole tube brick in use constantly enlarges in the aperture, tapping technique also requires to tap, and too greatly namely the time of tapping can not be too short for stream, the pipe brick must often be changed and could satisfy the tapping technological requirement, the life-span of therefore managing brick enough height in order to reach the purpose that shortening hot repair number of times, increase operating rate, reduction are managed the brick loss per ton steel.

The steel-tapping hole tube brick that uses at present as shown in Figure 1, because pipe brick smooth surface and nothing be degree slightly, adopt organic matter to form an integral body in conjunction with bonding between the pipe brick 1,3, lifting adhesive strength decline along with smelting temperature, in the frequent switching process of steel-tapping hole tube brick, take off power downwards because pipe brick deadweight produces, prevent from managing the frictional force that strength that brick 1 outwards comes off only has pipe brick 1 and 2 of fillers, often be difficult to prevention and take off power, disconnecting appears in pipe brick 1,3, affects service life.

Summary of the invention

The purpose of this utility model provides the split type steel-tapping hole tube brick structure of a kind of modified, both solved the disconnection problem in the use procedure of pipe brick, improved again the service life of pipe brick, the purpose of this utility model is achieved through the following technical solutions: a kind of split type steel-tapping hole tube brick structure, it is characterized in that: the pipe brick is taper type, and described pipe brick outer surface is made annular projection.

α=arctg (20/L) is slightly spent on described pipe brick surface, and wherein L is the length of pipe brick.

The beneficial effects of the utility model: the utility model is made into the slightly taper type of degree with each pipe joint brick, and will manage the brick surface and make annular projection, surface irregularity, after inserts fills up, thereby because the rising of temperature makes inserts produce curing each pipe joint brick is fixed, the slightly degree of pipe brick self and the concave-convex design on surface have increased the resistance between filler and the pipe brick, effectively prevented from coming off, and then improved the service life of pipe brick.

Description of drawings

Fig. 1 is pipe brick connection status figure in the prior art.

Fig. 2 is the utility model pipe brick structure schematic diagram.

Fig. 3 adopts the utility model pipe brick connection status figure.

The specific embodiment

A kind of split type steel-tapping hole tube brick structure, as shown in Figure 2, pipe brick 4 is taper type, its outer surface is made annular projection 41.α=arctg (20/L) is slightly spent on pipe brick 4 surfaces, wherein the length of L representative pipe brick 4.

Pipe brick state after use improving as shown in Figure 3 because pipe brick 4,5 surfaces have necessarily slightly degree, and air spots is sliding, strengthened pipe brick 4,5 with filler 2 between frictional force, effectively stoped and managed coming off of brick 4.

Claims

1. split type steel-tapping hole tube brick structure, it is characterized in that: the pipe brick is taper type, described pipe brick outer surface is made annular projection.

2. a kind of split type steel-tapping hole tube brick structure according to claim 1, it is characterized in that: α=arctg (20/L) is slightly spent on described pipe brick surface, and wherein L is the length of pipe brick.