CN205295377U - Iron mouthful dust excluding hood - Google Patents

Abstract

The utility model discloses an iron mouthful dust excluding hood, this dust excluding hood include gather dust mouth and casing, two mouthful symmetry of gathering dust sets up the both ends of casing, gather dust the mouth including straight section and conic section, it is 350mm that refractory material thickness lays in conic section department, the casing with it is 100mm that the straight section lays refractory material thickness. The technical scheme of the utility model make simply, structural design is reasonable, and maneuverability is strong.

Description

A kind of ferrum mouth dust excluding hood

Technical field

This utility model relates to blast furnace process dedusting technical field of mechanical equipment, particularly to a kind of ferrum mouth dust excluding hood.

Background technology

Ferrum mouth dust excluding hood is mainly made up of steel construction and refractory material, tapping hole tap drain dust removal installation, can effectively absorb tapping hole exit dust, it is prevented that molten iron heat radiation and splash and scald injury to stokehold operating personnel. Original ferrum mouth dust excluding hood refractory material is uniform thickness 150mm, one side set dedusting gather dust mouth and degree of lip-rounding formula of gathering dust unreasonable, be point cantact with molten iron contact site, there is local damage serious, major part is substantially intact, but still needs to ferrum mouth dust excluding hood is carried out the defect of integral replacing. Long-time the washing away by high temperature liquid iron in ferrum mouth dust excluding hood local, needs integral replacing ferrum mouth dust excluding hood after local damage, initial stage monthly replacing ferrum mouth dust excluding hood 8��9 of going into operation. Along with improving constantly of pig iron yield, ferrum mouth dust excluding hood replacing amount presents ascendant trend, within every 3��4 days, need to change 1, time the highest, the moon changes 12, not only increase the working strength of stokehold employee, and increase spare part Master Cost expenditure, be unfavorable for reducing ton ferrum production cost.

Utility model content

For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of ferrum mouth dust excluding hood, and concrete technical scheme is as follows:

A kind of ferrum mouth dust excluding hood, this dust excluding hood includes gather dust mouth and housing, and the mouth that gathers dust described in two is symmetricly set on the two ends of described housing; The described mouth that gathers dust includes straight section and cone section; It is 350mm that refractory thickness is laid at described cone section place, and it is 100mm that described housing and described straight section lay refractory thickness.

Described a kind of ferrum mouth dust excluding hood, two mouths that gather dust that its preferred version is described dust excluding hood can turn use.

Described a kind of ferrum mouth dust excluding hood, its preferred version be described in the gather dust length of mouth be 600-1000mm.

The beneficial effects of the utility model: the technical solution of the utility model manufacture is simple, convenient, workable, solves the conventional ferrum easy scaling loss of mouth dust excluding hood, and life cycle is short, increases ironmaking cost. The present invention is not by when increasing cost and putting into, optimize the thickness of resistance to material, change degree of lip-rounding formula of gathering dust, symmetrical machining gathers dust mouth, improve the life cycle of ferrum mouth dust excluding hood, ferrum mouth dust excluding hood moon replacing amount is reduced to 3, improves life cycle about 3 times, is substantially reduced molten iron to the erosion of dust excluding hood and destructiveness. Reduce working strength and the ton ferrum production cost of stokehold employee.

Therefore this structure is adopted to have great Social benefit and economic benefit.

Accompanying drawing explanation

Fig. 1 is ferrum mouth dust excluding hood structural representation of the prior art;

Fig. 2 is ferrum mouth dust excluding hood structural representation after transformation.

In figure: 1 be cover mouth, 2 be dust shield, 3 for gathering dust mouth, 4 be housing, and 5 is bore section. 6 is straight section.

Detailed description of the invention

A kind of ferrum mouth dust excluding hood as shown in Figure 2, this dust excluding hood includes gather dust mouth 3 and housing 4, and the mouth 3 that gathers dust described in two is symmetricly set on the two ends of described housing 4; The described mouth 3 that gathers dust includes straight section 6 and cone section 5; It is 350mm that refractory thickness is laid at described cone section 5 place, and it is 100mm that described housing 3 and described straight section 6 lay refractory thickness.

Two of the described dust excluding hood mouth 3 that gathers dust can turn use.

The length of the described mouth 3 that gathers dust is 600-1000mm.

Claims (3)

1. a ferrum mouth dust excluding hood, it is characterised in that: this dust excluding hood includes gather dust mouth and housing, and the mouth that gathers dust described in two is symmetricly set on the two ends of described housing; The described mouth that gathers dust includes straight section and cone section; It is 350mm that refractory thickness is laid at described cone section place, and it is 100mm that described housing and described straight section lay refractory thickness.

2. ferrum mouth dust excluding hood as claimed in claim 1 a kind of, it is characterised in that: two of the described dust excluding hood mouth that gathers dust can turn use.

3. ferrum mouth dust excluding hood as claimed in claim 1 a kind of, it is characterised in that: described in the gather dust length of mouth be 600-1000mm.