CN203079992U

CN203079992U - Small bell of blast furnace

Info

Publication number: CN203079992U
Application number: CN 201220701921
Authority: CN
Inventors: 韩晓东; 李云峰; 晏明
Original assignee: YUNNAN KISC HEAVY EQUIPMENT MANUFACTURING GROUP Co Ltd
Current assignee: YUNNAN KISC HEAVY EQUIPMENT MANUFACTURING GROUP Co Ltd
Priority date: 2012-12-18
Filing date: 2012-12-18
Publication date: 2013-07-24
Anticipated expiration: 2022-12-18

Abstract

The utility model provides a small bell of a blast furnace, wherein the small bell comprises a small bell body and a hopper. The small bell is characterized in that an inner sealing ring is arranged at the bottom end of the small bell body, an outer sealing ring is arranged at the bottom end of the hopper, and the inner wall of the outer sealing ring is in matched and connected with the outer wall of the inner sealing ring. Since the inner and outer sealing rings are overlapped, coal gas leak is conveniently and effectively prevented, and meanwhile, the service life of the small bell and the hopper is prolonged, the maintenance frequency is reduced, the maintenance cost is lowered and normal blast furnace smelting is ensured.

Description

The little clock of a kind of blast furnace

Technical field

The utility model relates to the little clock of a kind of blast furnace, and the little clock of blast furnace that especially a kind of stopping property is strong belongs to technical field of blast furnace process.

Background technology

In blast furnace production process, material enters on the little clock through little clock hopper after the State of Blast Furnace jacking is gone into, and little clock is opened and entered great bell, opens through great bell to enter in the stove again, thereby finishes the material cloth.In sealing place of little clock and hopper, the high pressure draft that is contained dust washes away, and is prone to groove, crosses deeply when excessive when groove, has a strong impact on the cloth process.Existing maintaining method is that groove is carried out built-up welding, polishing, or the little clock of integral replacing.Because built-up welding polishing workload is big, and the polishing accuracy requirement is higher, if polish the bad leakage problem that still exists; If carry out integral replacing, the duration is longer, and cost increases.Especially along with the raising of smelting strength of blast furnace, the increase of wind-warm syndrome, blast is had higher requirement to the sealing property of blast furnace furnace roof equipment, therefore, can not get improving and not possessing under the condition of frequent replacing at little clock equipment material, the sealing of improving little clock seems very important.

Summary of the invention

The purpose of this utility model is to provide a kind of blast furnace little clock, to improve little clock sealing property, prolongs little clock work-ing life, reduces maintenance cost, reduces production costs.

The utility model provides the little clock of a kind of like this blast furnace, comprises little clock body, and hopper, it is characterized in that in little clock body bottom inner seal ring being set, and the hopper bottom is provided with exterior seal ring, and the inwall of exterior seal ring and inner seal ring outer wall are matched.

The inner seal ring outer wall of described little clock bottom is made as the awl wall that adapts with the little clock conical surface, and inwall is made as cylindrical wall.

The exterior seal ring of described hopper bottom is a right cylinder, and this cylindrical upper inside wall is a cylindrical wall, and the bottom is the awl wall, and the outer cone wall of this awl wall and inner seal ring is matched, with further reinforcement sealing property.

The utlity model has following advantage and effect: adopt such scheme, the stacked of inside and outside sealing-ring can be passed through easily, effectively prevent gas leak, improve the work-ing life of little clock and hopper simultaneously, reduce frequency of maintenance, reduce maintenance cost, ensure normal blast-furnace smelting.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

The little clock of sealed blast furnace that the utility model provides, comprise little clock 3 and hopper 1, in little clock 3 bottoms inner seal ring 4 is set, in hopper 1 bottom exterior seal ring 2 is set, and the inwall of exterior seal ring 2 and inner seal ring 4 outer walls are matched, wherein, the outer wall of the inner seal ring 4 of little clock 3 bottoms is made as the awl wall that adapts with little clock 3 conical surfaces, and inwall is made as cylindrical wall; The exterior seal ring 2 of hopper 1 bottom is a right cylinder, and this cylindrical upper inside wall is a cylindrical wall, and the bottom is the awl wall, and the outer cone wall of this awl wall and inner seal ring 4 is matched, with further reinforcement sealing property, as Fig. 1.

Claims

1. the little clock of blast furnace comprises little clock body, and hopper, it is characterized in that in little clock body bottom inner seal ring being set, and the hopper bottom is provided with exterior seal ring, and the inwall of exterior seal ring and inner seal ring outer wall are matched.

2. the little clock of blast furnace according to claim 1 is characterized in that the inner seal ring outer wall of described little clock bottom is made as the awl wall that adapts with the little clock conical surface, and inwall is made as cylindrical wall.

3. the little clock of blast furnace according to claim 1, the exterior seal ring that it is characterized in that described hopper bottom is a right cylinder, and this cylindrical upper inside wall is a cylindrical wall, and the bottom is the awl wall, and the outer cone wall of this awl wall and inner seal ring is matched.