CN2160872Y

CN2160872Y - Water-cooling calandria furnace lid for electric steel-smelting furnace

Info

Publication number: CN2160872Y
Application number: CN 93231460
Authority: CN
Inventors: 马恒文
Original assignee: YANTAI PETROCHEMICAL PIPE FACTORY
Current assignee: YANTAI PETROCHEMICAL PIPE FACTORY
Priority date: 1993-07-22
Filing date: 1993-07-22
Publication date: 1994-04-06
Anticipated expiration: 2003-07-22

Abstract

The utility model provides a water-cooling calandria furnace lid for electric steel-smelting furnace. The furnace lid is composed of a furnace lid frame, a water-cooling block and a small furnace lid. The furnace lid frame is provided with a water inlet pipe, a water return pipe, a hanging rack and a hanging lug. Both the water-cooling block and the small furnace lid are welded and jointed by bending seamless steel pipes closely packed together, elbow pipes of 180 DEG and elbow pipes of 90 DEG. The utility model not only solves the problem that the marshalling refractory brick work furnace lid has poor integration performance, big energy consumption and short service life, but also has the advantages of convenient replacement, maintenance and transportation. The utility model has a service life which is more than 200 times of the refractory brick work furnace lid, which is an ideal furnace lid of the electric steel-smelting furnace.

Description

Water-cooling calandria furnace lid for electric steel-smelting furnace

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 resource consumption is big, and service 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 resource 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 shop bolt 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 pipe and inner ring.The two ends of water inlet pipe, return main and return 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 pipe, are welded with hanger and water inlet manifold flange on the outer ring, are welded with shop bolt 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 resource consumption is few, under normal operating position, its life-span can reach 1500 more than the heat, be that more than 200 times of life-span of firebrick structure form bell divides body structure because this bell adopts, change and easy to maintenance and be convenient to transportation.

Description of drawings:

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

Fig. 2 is the A-A cutaway 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 expanded view;

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

1, outer ring, 2, water inlet pipe, 3, inner ring, 4, little bell, the 5, the 4th hole, 6, suspension bracket, the 7, the 5th hole, 8, the port cage, 9, the water-cooled piece, 10, hanger, 11, the water inlet manifold flange, 12, return main's flange, 13, bend pipe, 14, bend pipe, 15, flange, 16,90 ° of elbows, 17,180 ° of elbows, 18, water inlet, 19, water return outlet, 20, compound plate, 21, the return main, 22, shop bolt, 23, return pipe, 24, water inlet pipe, 25, return pipe.

Below in conjunction with embodiment the utility model is further specified:

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 seamless steel pipe, water inlet pipe 2, return main 21, return pipe 25 and inner ring 3 are welded.The two ends of water inlet pipe 2, return main 21, return 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 connect flexible pipe links to each other with water pump, be welded with suspension bracket 6 on water inlet pipe 2, total return pipe 21 and the return 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 connect flexible pipe on return main's flange 12 cooling water is introduced cooling water flow in pond.Water-cooled piece 9 is welded together by the bend pipe of being made by seamless steel pipe 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, and the caliber of water-cooled piece bend pipe 14 is generally 60-90mm, and 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 inlet 18 and water return outlet 19 are arranged on the water-cooled piece 9, utilize metal hose respectively with the bell framework on water inlet pipe 2 and return pipe 25 couple together.Little bell is to be welded by the bend pipe of being made by seamless steel pipe 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 cooling water 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 shop bolt 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 pipe 23 are arranged, couple together with water inlet pipe 2 and return pipe 25 respectively with metal 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 geometric figure of composition is circular.Be equipped with two water inlets 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-Di four holes and charging aperture-Di five holes.

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 pond enters outer ring 1 successively, water inlet pipe 2, cooling water 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 inlet on the water-cooled piece 9 18 simultaneously, the cooling water of little bell flows into inner ring 3 by return pipe 23, the cooling water 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 cooling bell in cyclic process.

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 shop bolt (22) on the bell framework inner ring (3), and water-cooled piece (9) is welded with 180 ° elbow (17) and 90 ° elbow (16) by the bend pipe (14) that closely is arranged in together.

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 pipe (25) and inner ring (3), water inlet pipe (2), return main (21) and return 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 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.