CN2514003Y

CN2514003Y - Drain pipe water cooling furnace lid for steel-smelting electric furnace

Info

Publication number: CN2514003Y
Application number: CN 01278847
Authority: CN
Inventors: 孙立国
Original assignee: YANTAI METALLURG WATER COOLING
Current assignee: Yantai Guoye Metallurgical Water-Cooled Equipment Co., Ltd.
Priority date: 2001-12-21
Filing date: 2001-12-21
Publication date: 2002-10-02
Anticipated expiration: 2011-12-21

Abstract

A tubular water-cooling furnace cover for steel-making electric furnace; the furnace cover consists of a furnace cover frame, a water-cooling block and a small furnace cover which are assembled together; the water-cooling block is mounted on the hanger of the furnace cover frame; the small furnace cover is mounted on the furnace cover frame by a dowel pin on the inner ring of the furnace frame; the water-cooling block consists of bend pipes which are closely lined together, 180 degrees and 90 degrees pipe heads which are welded together. The utility model uses a water-cooling block and the circulation water in the small furnace cover water pipe to cool the furnace cover, so that the energy consumption can be reduced; during the normal use, the service life of the utility model is up to above 1500 heats, which is more than 200 times of that of the refractory brick structured furnace covers. Adopting the separate structure, the furnace cover is convenient to be replaced and maintained, and is easy to be installed.

Description

Steel-smelting electric furnace comb water cooled cover

The utility model relates to a kind of steel-smelting electric furnace bell, belongs to metallurgical equipment.

Adopt of the bell of existing steel-smelting electric furnace built firebrick structure by laying bricks or stones more, and the shortcoming of the bell of this structure is that brickwork joint is many, and overall performance is poor, and energy consumption is big, and work-ing life is short, keeps in repair consuming time many.

The purpose of this utility model is to provide a kind of calandria water cooled cover, and this bell energy consumption is few, long service life, and replacing, easy to maintenance.

The purpose of this utility model is achieved in that the water-cooled piece is installed in by bolt on the suspension bracket of bell framework, and little bell is contained in by the tommy on the bell framework inner ring and forms bell integral body on the bell framework.The water-cooled piece is welded by bend pipe and 180 ° of elbows and 90 ° of elbows of closely being arranged in together.

Little bell is welded by bend pipe and 180 ° of elbows and 90 ° of elbows of closely being arranged in together.The bell framework is welded by outer ring, water inlet pipe, return main, return water pipe and inner ring.The two ends of water inlet pipe, return main and return water pipe are welded on respectively on outer ring and the inner ring, are welded with suspension bracket on water inlet pipe, return main and the return water pipe, are welded with hanger and water inlet manifold flange on the outer ring, are welded with tommy on the inner ring.

The utility model steel-smelting electric furnace comb water cooled cover, utilize the recirculated water cooling bell in water-cooled piece and the port lid water pipe, energy consumption is few, under normal service condition, its life-span can reach 1500 more than the heat, is more than 200 times of life-span of firebrick structure form bell.Because adopting, this bell divides body structure, replacing and easy to maintenance, and be convenient to install.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model steel-smelting electric furnace comb water cooled cover front view;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is a water-cooled piece front view of the present utility model;

Fig. 4 is a port lid front view of the present utility model;

Fig. 5 is that Fig. 4 B is to stretch-out view;

Fig. 6 is the water-cooled piece front view that has feed port and exhaust smoke hole.

Steel-smelting electric furnace comb water cooled cover is assembled by bell framework, water-cooled piece and port cover split-type structure.The outer ring 1 that the bell framework is made by weldless steel tube, water inlet pipe 2, return main 21, return water pipe 25 and inner ring 3 are welded.The two ends of water inlet pipe 2, return main 21, return water pipe 25 are welded on respectively on outer ring 1 and the inner ring 3, be welded with the water inlet manifold flange 11 that communicates with it on the outer ring 1, on the water inlet manifold flange 11, can link to each other with water pump by flexible pipe, be welded with suspension bracket 6 on water inlet pipe 2, total return water pipe 21 and the return water pipe 25, be welded with hanger 10 on the outer ring 1, be welded with the return main 21 who communicates with it on the inner ring 3, be welded with return main's flange 12 on the return main 21, can pass through on return main's flange 12.Flexible pipe is introduced cooling water flow in pond with water coolant, and water-cooled piece 9 is welded together by the bend pipe of being made by weldless steel tube 14 and 180 ° elbow 17 and 90 ° the elbow 16 that closely are arranged in together, and elbow is communicated with bend pipe, forms cooling water path.The quantity and the caliber of bend pipe 14 are decided according to the size of steel-smelting electric furnace, the caliber of water-cooled piece bend pipe 14 is generally 60-90mm, quantity is about 17, be welded with compound plate 20 on the water-cooled piece 9, screw is arranged on it, water-cooled piece 9 couples together by the suspension bracket 6 on bolt and the bell framework, and water-in 18 and water return outlet 19 are arranged on the water-cooled piece 9, utilize metallic hose respectively with the bell framework on water inlet pipe 2 and return water pipe 25 couple together.Little bell is to be welded by the bend pipe of being made by weldless steel tube 13 and 180 ° of elbows 17 and 90 ° of elbows 16 of closely being arranged in together, and the effect of elbow is to be communicated with bend pipe, and water coolant is flowed in pipe, and caliber is generally 38mm, and quantity is about 17.The good port lid 4 of welding is contained in it on the tommy 22 on bell framework inner ring 3 by the pin-and-hole on the port cage 8.It is overall that bell framework, water-cooled piece and little bell are just formed a comb water cooled cover like this.Port lid 4 is cone, is convenient to bear the weight of steel-smelting electric furnace electrode.On the port lid 4 water inlet pipe 24 and return water pipe 23 are arranged, couple together with water inlet pipe 2 and return water pipe 25 respectively with metallic hose.

The comb water cooled cover is according to the needs of applying unit, can be made up of 3,4 or 6 water-cooled pieces, and the geometricdrawing of composition is circular.Be equipped with two water-ins 18 and two water return outlets 19 on the every water-cooled piece.According to the applying unit needs, wherein there is a water-cooled piece to be provided with exhaust smoke hole 1 the 4th hole 5 and charge cavity 1 the 5th hole 7.

When using this bell, earlier flange 15 is placed on the electric furnace, utilize then hanger 10 the bell integral hoisting on flange 15, can use.

Bell is cooled like this during steel-making: the water supply hose that is connected with water pump communicates with outer ring 1 by water inlet manifold flange 11, the water that water pump is released from the cooling basin enters outer ring 1 successively, water inlet pipe 2, water coolant is entered the water inlet pipe 24 of little bell by water inlet pipe 2, enter again in the bend pipe 13, enter in the bend pipe 14 of water-cooled piece by the water-in on the water-cooled piece 9 18 simultaneously, the water coolant of little bell flows into inner ring 3 by return water pipe 23, the water coolant of water-cooled piece 9 also flows into inner ring 3, flow back in the cooling water flow in pond by the return main on the inner ring 3 21 at last, so just, formed water-flow circuit, water is taken away heat in working cycle, the cooling bell.

Claims

1, a kind of steel-smelting electric furnace comb water cooled cover, it is characterized in that: bell is assembled by bell framework, water-cooled piece and little bell, water-cooled piece (9) is installed on the suspension bracket (6) of bell framework by bolt, little bell (4) is contained on the bell framework by the tommy (22) on the bell framework inner ring (3), water-cooled piece (9) by closely be arranged in together bend pipe (14) and 180 ° elbow (17) and 90 ° of elbows (16) be welded.

2, steel-smelting electric furnace comb water cooled cover according to claim 1, it is characterized in that: the bell framework is to be welded by outer ring (1), water inlet pipe (2), return main (21), return water pipe (25) and inner ring (3), water inlet pipe (2), return main (21) and return water pipe (25) two ends are welded on respectively on outer ring (1) and the inner ring (3), be welded with suspension bracket (6) on water inlet pipe (2), return main (21) and the return water pipe (25), be welded with hanger (10) and water inlet manifold flange (11) on outer ring (1).

3, steel-smelting electric furnace comb water cooled cover according to claim 1 is characterized in that: little bell (4) is to be welded with 180 ° of elbows (17) and 90 ° of elbows (16) by the bend pipe (13) that closely is arranged in together.