CN202369600U

CN202369600U - Scraping device for stokehole tap hole breast

Info

Publication number: CN202369600U
Application number: CN2011204937138U
Authority: CN
Inventors: 李廷军; 张文庆; 丛培东; 王新军
Original assignee: Baosteel Group Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Baosteel Group Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2011-12-02
Filing date: 2011-12-02
Publication date: 2012-08-08
Anticipated expiration: 2021-12-02

Abstract

The utility model discloses a scraping device for a stokehole tap hole breast, which comprises a scraping disk, wherein drill bits which are perpendicular to a disk surface is evenly distributed on and fixedly connected with the disk surface on one side of the scraping disk at intervals; the diameter of the drill bit in the centre of the disk surface is smaller than that of the drill bit on the periphery of the disk surface; a drill stem is fixedly connected with the centre of a disk surface on the other side of the scraping disk; and the diameter of the scraping disk is the same as that of a clay gun flange. The scraping device is simple in structure, the manufacturing quantity of tap hole breasts of a blast furnace is reduced obviously, the labor intensity of workers is reduced, the usage amount of breast materials is reduced, and the production cost is reduced. The improvement on maintenance of the breast guarantees the stability of mud making quantity, stabilizes the depth and the working state of a tap hole and is positive to the maintenance of the tap hole.

Description

Stokehold iron mouth mud cover scraped finish device

Technical field

Iron mouth mud cover cleaning tool, particularly stokehold iron mouth mud overlapped the scraped finish device before the utility model related to a kind of State of Blast Furnace.

Background technology

Along with the develop rapidly of blast-furnace technique, the maximization of blast furnace, the minimizing of high blast, the number of casts, the discharge of each a large amount of slag iron, to the post, stokehold require increasingly highly, go out slag iron to the greatest extent on time, operation in the close fit stove guarantees the task of blast furnace stable smooth operation.Stokehold iron mouth qualification rate is an important index of stokehold, and the quality that the iron mouth is safeguarded will directly influence the operation and the longevity of blast furnace, be a long-term important job.The mud cover is the important component part of iron mouth, and can the quality of mud cover has influence on safe stifled iron notch, guarantee to beat the mud amount, so the mud cover safeguards it is a very important ring during the iron mouth is safeguarded.The quality that iron mouth mud cover is safeguarded will be directly connected to iron mouth qualification rate and stokehold labor capacity.Existing problem is: behind the blast furnace opening; The iron mouth emits the mud rate high; Iron mouth maintenance difficulties is big, and mud is enclosed within and is prone to the whole evagination of accumulated slag in the operation process, corrodes phenomenons such as integral body is caved in, SOL, false mud cover, and the stokehold is to judge by range estimation and personal experience to the judgement of mud cover state; Management maintenance scientific basis to the mud cover is not enough, thereby the maintenance and the stokehold labor capacity that have influence on the iron mouth increase.

Summary of the invention

The purpose of the utility model is to provide a kind of stokehold iron mouth mud cover scraped finish device, and it is simple in structure, and cleaning mud cover is time saving and energy saving, reduces the enterprise production cost.

The purpose of the utility model is to realize like this; A kind of stokehold iron mouth mud cover scraped finish device; Comprise and scrape mill that scrape affixed uniformly at intervals and the perpendicular drill bit of card on the side panel face of mill, the bit diameter that is positioned at the card center is less than the bit diameter that is positioned at card outer rim place; Scrape the opposite side card center of mill affixed one with drilling rod, the diameter of scraping mill is identical with the diameter of clay gun flange.

The utility model principle: 1, utilize the mechanical power scraped finish of taphole drilling machine to replace former artificial pneumatic pick crow bar cleaning; 2, taphole drilling machine and clay gun angle value are constant, have guaranteed that iron mouth mud cover face is identical with clay gun big gun mouth flange face after the scraped finish; 3, the clay gun compaction pressure is utilized benefit mud to build the pressure and is detected the scraped finish effect greater than beating mud pressure after the scraped finish, guarantees to block up normally behind the iron, produces a desired effect.Working method: when generation iron mouth emits phenomenons such as mud, evagination, SOL, false mud cover need make repairing mud cover: 1, drilling rod iron mouth is installed and is opened 300-500 ㎜ in advance; 2, unload drilling rod and install mud cover scraped finish device; 3, align iron mouth eye, open pressurized air, cut scraped finish; 4, confirm iron mouth mud cover after normal, withdraw from taphole drilling machine, the operation clay gun carries out pressure testing, emits mud to repeat (3) operation; Do not emit mud to be regarded as normally.Invention effect: 1, Production Time: former 30-60min, existing 10-30min has significantly reduced blast-furnace man's labour intensity; 2, technical indicator: emit mud rate clump 4.67 ﹪ to drop to 0.59 ﹪, iron mouth qualification rate clump 93.2 ﹪ rise to 98.78 ﹪; 3, cost: the mud cover is repaired mud Cong Yue 1.2 tons (9800 yuan/ton) to 0.1 ton of the moon.This tool construction is simple, and instrument uses back blast furnace taphole mud cover production quantity obviously to reduce, and has alleviated worker's labour intensity, has practiced thrift the usage quantity of mud jacking, has reduced production cost.Breakthrough on mud cover is safeguarded has been guaranteed to beat the stable of mud amount, has stablized the iron mouth degree of depth and iron mouth working order, and the maintenance of iron mouth is had positive meaning.

Description of drawings

To combine accompanying drawing that the utility model is done further detailed explanation below.

Fig. 1 is the perspective view of the utility model.

Embodiment

A kind of stokehold iron mouth mud cover scraped finish device; As shown in Figure 1; Comprise and scrape mill 3 that scrape affixed uniformly at intervals and the perpendicular drill bit of card on the side panel face of mill 3, drill bit 2 diameters that are positioned at the card center are less than drill bit 1 diameter that is positioned at card outer rim place; The diameter of center drill bit 2 is 45mm, and the diameter of outer rim place drill bit 1 is 60mm.Scrape the opposite side card center of mill 3 affixed one with drilling rod 4, the diameter of scraping mill 3 is identical with the diameter of clay gun flange.The utility model is simple in structure, and instrument uses back blast furnace taphole mud cover production quantity obviously to reduce, and has alleviated worker's labour intensity, has practiced thrift the usage quantity of mud jacking, has reduced production cost.Breakthrough on mud cover is safeguarded has been guaranteed to beat the stable of mud amount, has guaranteed the stable of the iron mouth degree of depth and iron mouth working order, and the maintenance of iron mouth is had positive meaning.

Claims

1. a stokehold iron mouth mud overlaps the scraped finish device; Comprise and scrape mill; It is characterized in that: scrape affixed uniformly at intervals and the perpendicular drill bit of card on the side panel face of mill; The bit diameter that is positioned at the card center is less than the bit diameter that is positioned at card outer rim place, scrape the opposite side card center of mill affixed a drilling rod.