CN2567231Y

CN2567231Y - Compound blast furnace chute liner

Info

Publication number: CN2567231Y
Application number: CN 02274768
Authority: CN
Inventors: 张守权
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-13
Filing date: 2002-08-13
Publication date: 2003-08-20
Anticipated expiration: 2012-08-13

Abstract

A composite type blast furnace backing block relates to the designing of the non bell blast furnace feeding equipment chute backing block and the manufacturing technology. The composite type blast furnace backing block mainly solves the problem of the blast furnace chute abrasion because of impact and reducing the long lifetime because of the abrasive wear. The backing block identity A is cold inlaid with the super-hard alloy layer and above the super-hard alloy is the backing block identity B. The backing block identity B is equipped with the barrier material ring and on the top of the barrier material ring is cold inlaid with the super-hard alloy layer. The notched backing block identity B between the barrier material ring is welded with the wearing-resistant alloy layer. The speed of the materials is slowed down because of the countercheck of the barrier material ring, and the materials are always counterchecked between the respectively barrier material ring, and the subsequent materials only can contact friction wear-out with the front lot materials and the top end of the barrier material ring and can not flaw the bottom of the chute. The super-hard abrasion resistant alloy is cold inlaid on the top of the barrier material ring to resist the impact wear-out, and the barrier material ring functions as barrier material, mixing material and grinding material in a long time. Further, the barrier material ring is worn-out, the lower super-hard alloy layer can also resist to be worn out, therefore, the service life of the composite type blast furnace backing block can be prolonged in multiples.

Description

Compound blast furnace chute liner plate

(1) technical field:

The utility model relates to the design and fabrication technology of no bell iron-smelting blast furnace apparatus for distributing chute liner plate.

(2) background technology:

The chute liner plate that uses in producing now has two kinds of forms, and a kind of is to do solder flux with manganese brass on the liner plate body, is cast into alloy block with the method for high soldering, in the hope of reaching the purpose that the alloy block opposing is worn and torn.Its shortcoming is: raw material directly washes away chute liner plate bottom, and speed is exceedingly fast, and the erosive wear aggravation life-span is shorter, and alloy block snaps the rate height, peels off body, and chute is scrapped rapidly.The complete processing complexity requires the temperature height, exists the thermal stresses phenomenon yielding, wastes energy, and environment is had pollution.Another kind is on the liner plate body blocking material ring to be arranged, and blocking material ring can stop the material slip velocity, reduce wearing and tearing, but the poor performance of blocking material ring itself is fragile, scraps in case damage whole chute liner plate.

(3) summary of the invention:

The utility model solves blast furnace chute emphatically because of gouging abrasion and low problem of abrasive wear life-span.

The technical solution of the utility model is: cold edge superhard alloy layer on liner plate body A is liner plate body B on the superhard alloy layer.On liner plate body B, blocking material ring is set, at the top of blocking material ring cold edge superhard alloy layer.Built-up welding has wear-resistant alloy layer on the liner plate body B of groove between the blocking material ring.

The utility model beneficial effect is: material is owing to the speed that stops of blocking material ring slows down, and always there is material to be blocked between each blocking material ring, and follow-up material can only contact friction wear with preceding batch materials and blocking material ring top, and can not injure bottom the chute, with the cold top anti impact wear-proof that is set in blocking material ring of superhard wear alloy, make blocking material ring play the effect of backgauge and material abrasive material for a long time.Even if the blocking material ring wearing and tearing, the superhard alloy layer of bottom also can resistance to wear.The most flimsy position is strengthened reducing to reach cost, and the purpose that the life-span is doubled and redoubled has shortened the blast furnace blowing-out time simultaneously, prolongs tap to tap time, improves user's economic benefit.

(4) description of drawings:

Figure is the utility model structural representation.

(5) embodiment:

Compound blast furnace chute liner plate as shown in the figure, cold edge superhard alloy layer 2 on liner plate body A1 is liner plate body B3 on the superhard alloy layer.On liner plate body B, blocking material ring 4 is set, at the top of blocking material ring cold edge superhard alloy layer 5.Built-up welding has wear-resistant alloy layer 6 on the liner plate body B of groove between the backgauge.Adopt machine-tooled method just can produce.

Claims

1, compound blast furnace chute liner plate, constitute by liner plate body, alloy layer and blocking material ring, it is characterized in that: liner plate body A[1] last cold edge superhard alloy layer [2], on the superhard alloy layer liner plate body B[[3], blocking material ring [4] is set on liner plate body B, at the top of blocking material ring cold edge superhard alloy layer [5], built-up welding has wear-resistant alloy layer [6] on the liner plate body B of groove between the backgauge.