CN2918438Y

CN2918438Y - Blast furnace hydraulic clay gun

Info

Publication number: CN2918438Y
Application number: CN 200620050620
Authority: CN
Inventors: 仇映辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-14
Filing date: 2006-04-14
Publication date: 2007-07-04
Anticipated expiration: 2016-04-14

Abstract

The utility model discloses a blast furnace hydraulic mud gun, which is applied in steel and metallurgical industry and used for high-temperature furnace liquid outlet of closed metallurgical furnace. The utility model comprises an artillery mouth, a mud cylinder, a mud plug in the mud cylinder, a hydraulic ram, a casing, a supporting central between the casing and the fuel tank, an itinerary indicator, a progressive mud mouth on the mud cylinder, and a back mud mouth on the casing, which is characterized in that the mud plug is a metal stall lap with one to four grooves, a cast iron alloy ring provided with a opening is embedded in the grooves. One to four powder metallurgy guide tape are arranged on the supporting central between the casing and the fuel tank. The structure of the blast furnace hydraulic mud gun cause no serious wear to the hydraulic fuel tank, the failure rate is greatly reduced, the trouble-free service life is up to at least six months, two to three times longer than that in prior art, the reliability is high, the maintenance and replacement are convenient, the maintaining cost is low, and the normal production of the enterprises is not affected during maintenance period.

Description

The blast furnace Hydraulic clay gun

Technical field

The utility model relates to a kind of iron and steel that is applicable to, metallurgy industry is used to seal that high-temp liquid exports matching used blast furnace Hydraulic clay gun on the smelting furnace.

Background technology

A high-temp liquid metal outlet is all arranged on ironmaking and other smelting furnace, will not seal with a kind of refractory mortar that contains various metal essences, extreme hardness before emitting liquid metal usually, this process is realized by the blast furnace Hydraulic clay gun.Existing blast furnace Hydraulic clay gun is by the mud inlet on the sustained ring between bod body, hydraulic ram, shell, shell and the oil cylinder in big gun mouth, mud cylinder, the mud cylinder, travel indicator, the mud cylinder, and parts such as the mud return mouth on the shell constitute.Retaining mud collar in the prior art on the bod body is the ring of a band tapering of being made by nylon material, be difficult to bear this extremely bad working environment in smelting sole in this ring use, can not stretch with the variation of temperature and pressure, gap adjustment when can't the suitable metal material expanding with heat and contract with cold, so in use its gap is bigger, the maximum clearance can reach the 2-3 millimeter, so leakage mud phenomenon is serious; It is mashed also to be easy to wearing and tearing, and its work-ing life is the longest has only 2-3 month, more the change poles inconvenience.Sustained ring between existing shell and the oil cylinder is a metal copper ring, there is not guidance tape above, friction during work between this metal copper ring and the oil cylinder can cause oil cylinder outside surface chromium coating to wear away, even directly pull the outside surface of playing the mud hydraulic ram, so just must carry out large repairs in every use 2-3 month to oil cylinder, usually will keep in repair 3-4 time every year, and repair and replacement are very complicated, maintenance cost height not only, reach 1-2 month each servicing time, had a strong impact on the production efficiency of enterprise, this problem is to perplex the technical barrier of enterprise for a long time.

The utility model content

The purpose of this utility model is to overcome above shortcoming, provides improve greatly a kind of work-ing life, good reliability, easy to maintenance, maintenance cost is low, can improve the production efficiency of enterprise greatly, reduces the blast furnace Hydraulic clay gun of maintenance cost.

The utility model comprises the bod, hydraulic ram, the shell in big gun mouth, mud cylinder, the mud cylinder, mud inlet on mud retaining ring between shell and the oil cylinder, travel indicator, the mud cylinder, mud return mouth on the shell, it is characterized in that the bod on the mud cylinder is to have 1-4 road groove on a metal collar, on groove, stud with the cast alloy iron ring that is provided with opening; Described opening becomes miter angle.Sustained ring between shell and the oil cylinder is provided with 1-4 powder metallurgy guidance tape.

Cast alloy iron bod ring of the present utility model can bear extremely bad working environment, gap adjustment when also can the suitable metal material expanding with heat and contract with cold, its gap has only the 0.2-0.5 millimeter during use, it is few to leak the mud phenomenon, and the guidance tape on the sustained ring is the powder metallurgy ring, and this ring quality is soft than steel material, and the friction between the alloy oil cylinder is little, generally the chromium coating of beating the outside surface of mud oil cylinder can not worn away, have 6 months no-failure life at least, than original raising 2-3 doubly; This bod and the guidance tape of forming by 1-4 bar ring, when having damaged wherein one, but second, the 3rd works better still, even the guidance tape on the sustained ring has only 1 powder metallurgy ring, when guidance tape damaged, it was extremely convenient to change; Generally need only just can finish half a day, maintenance cost is very low; Also can not have influence on the ordinary production of enterprise during maintenance, can improve the production efficiency of enterprise greatly, reduce production costs.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the containment structure synoptic diagram;

Fig. 3 is a bod structural representation;

Fig. 4 is a shelves mud ring structure synoptic diagram.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment 1:

The attached Fig. 1 and 2 of reference: the blast furnace Hydraulic clay gun is by the mud inlet 9 on the sustained ring 5 between the bod 3 on big gun mouth 1, mud cylinder 2, the mud cylinder, hydraulic ram 4, shell 7, shell and the oil cylinder, travel indicator 8, the mud cylinder, and mud return mouth more than 10 parts on the shell constitute.

With reference to accompanying drawing 3: the bod of present embodiment is to have 3 road grooves on a metal retaining mud collar 11, studs with the cast alloy iron ring 12 that is provided with opening 13 on groove.The opening of present embodiment is for there being miter angle.

With reference to accompanying drawing 4: present embodiment sustained ring 5 is provided with 3 powder metallurgy ring guidance tapes 6.

This by 3 the rings bod and the guidance tapes formed, when having damaged wherein one, but second, the 3rd works better still.

Embodiment 2:

The bod is to have 1 road groove on a metal retaining mud collar as different from Example 1, studs with the cast alloy iron ring that has the miter angle opening on groove.Guidance tape on the sustained ring is 1 powder metallurgy ring.When this structure was damaged when guidance tape, it was extremely convenient to change; Generally need only just can finish half a day, maintenance cost is also very low; Also can not have influence on the ordinary production of enterprise during maintenance.

Claims

1. blast furnace Hydraulic clay gun, comprise the mud inlet on sustained ring between the bod, hydraulic ram, shell, shell and the oil cylinder in the big gun mouth, mud cylinder, mud cylinder, travel indicator, the mud cylinder, mud return mouth on the shell, it is characterized in that the bod is to have 1-4 road groove on a metal collar, studs with the cast alloy iron ring that is provided with opening on groove.

2. blast furnace Hydraulic clay gun according to claim 1 is characterized in that the sustained ring between shell and the oil cylinder is provided with 1-4 powder metallurgy ring guidance tape.

3. blast furnace Hydraulic clay gun according to claim 1 is characterized in that the opening on the described cast alloy iron ring becomes miter angle.