CN2813627Y - Blast furnace cooling wall - Google Patents

Abstract

The utility model relates to a blastfurnace cooling wall which comprises a wall body (1), wherein a water pipe (2) is buried in the wall body (1), and the hot surface of the cooling wall is a plane or a cambered surface. The blastfurnace cooling wall of the utility model has the advantages that the thickness of the cooling wall is decreased because the hot surface of the cooling wall is the plane or the cambered surface; therefore, the weight of a blastfurnace body can be lightened, the volume of a hearth can be increased, and the material cost of the cooling wall can be reduced; the thickness of each of refractory bricks is decreased because the contact surface between each of the refractory bricks and the cooling wall is also a surface or a cambered surface; the refractory bricks and the cooling wall of smaller thickness can quicken the speed of heat dissipation of the cooling wall; the cooling wall has simple manufacturing technologies and low cost; the service life of the cooling wall is long because stress concentrating sources can not be generated on the surfaces or the cambered surfaces; the thickness of the cooling wall and the refractory bricks is uniform, and the heat dissipating effect is good.

Description

A kind of blast furnace cooling stave

Technical field

The utility model relates to steelmaking furnace, particularly the cooling stave of blast furnace.

Background technology

Blast furnace body is made up of body skin, continuously arranged cooling stave, refractory brick, and refractory brick is attached on the hot side of cooling stave.Existing blast furnace cooling stave is shown in Fig. 1,4, and blast furnace cooling stave generally comprises the wall body 1 of cast iron, is cast into steel water-cooled tube 2 in the wall body 1.For improving the radiating effect of cooling stave, the hot side of existing cooling stave all is designed to male and fomale(M﹠F), and as Fig. 4, the hot side of wall body 1 is provided with groove 3, achieves the goal with the Method for Area that increases the cooling stave hot side with expectation.

There is following defective in above-mentioned blast furnace cooling stave: 1, because the hot side of cooling stave is a male and fomale(M﹠F), must cause cooling stave to have bigger thickness, cause the weight of body of heater big thus, the volume of burner hearth is little, the material cost height of cooling stave; 2, because the hot side of cooling stave is a male and fomale(M﹠F), what must cause refractory brick also is male and fomale(M﹠F) with the cooling stave contact surface, so the thickness of refractory brick is also bigger, and the refractory brick and the cooling stave of big thickness have influenced the cooling stave radiating rate, are unfavorable for the cooling stave heat radiation; 3, the hot side of cooling stave is a male and fomale(M﹠F), manufacturing process complexity, cost height; 4, male and fomale(M﹠F) can be made stress raiser on cooling stave, easily makes cooling stave produce slight crack, influences the life-span of cooling stave; 5, the became uneven of cooling stave, refractory brick easily causes the heat exchange temperature gradient, influences radiating effect.

Summary of the invention

Technical problem to be solved in the utility model is: provide that a kind of thickness is little, in light weight, long service life, cost are low, the blast furnace cooling stave of good heat dissipation effect.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: it comprises wall body, is embedded with water pipe in the wall body, and the hot side of cooling stave is plane or cambered surface.

Compared with prior art, the utility model blast furnace cooling stave has the following advantages:

1, because the hot side of cooling stave is plane or cambered surface, cooling stave thickness is reduced, therefore, the weight of body of heater can alleviate greatly, and the volume of burner hearth can increase, and the material cost of cooling stave can reduce greatly;

2, refractory brick with the cooling stave contact surface also be plane or cambered surface, the thickness of refractory brick also reduces greatly; The refractory brick of less thickness and cooling stave can be accelerated the cooling stave radiating rate, help the cooling stave heat radiation;

3, the cooling stave manufacturing process is simple, and cost is low;

4, can not produce stress raiser on plane or the cambered surface, the long service life of cooling stave;

5, the thickness of cooling stave, refractory brick is even, good heat dissipation effect.

Description of drawings

Fig. 1 is the structural representation of the utility model blast furnace cooling stave embodiment 1

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

Fig. 3 is the sectional view of the utility model blast furnace cooling stave embodiment 2

Fig. 4 is the sectional view of existing blast furnace cooling stave

Embodiment

The utility model embodiment 1 as shown in Figure 1, 2, blast furnace cooling stave comprise the wall body 1 of cast copper, are embedded with steel water-cooled tube 2 in the wall body 1; The hot side of cooling stave is the plane.

Adopt vacuum degassing process in the utility model embodiment castingprocesses, removed the obnoxious flavour in the copper water, make its metal structure fine and close more.Steel water-cooled tube 2 adopts common weldless steel tube, low price and also make after product can be directly and high furnace water pipe weld, avoided the mass defect that causes because of welding.

The utility model embodiment 2 as shown in Figure 3, the hot side of blast furnace cooling stave are cambered surface.

Claims (1)

1, a kind of blast furnace cooling stave, it comprises wall body (1), is embedded with water pipe (2) in the wall body (1), it is characterized in that: the hot side of cooling stave is plane or cambered surface.

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