JP3945041B2 - Concentrate burner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a concentrate burner used in a self-melting smelting furnace which is one of non-ferrous metal smelting furnaces using sulfide concentrate.
[0002]
[Prior art]
One non-ferrous metal smelting furnace is a self-melting smelting furnace. This smelting furnace mainly consists of a reaction tower equipped with a concentrate burner at the top, a settler, and a flue. And the operation using this auto smelting furnace is performed by injecting the concentrate which is a raw material, the smoke ash which is a secondary raw material, a calami regulator, an auxiliary fuel, etc. into a reaction tower from a concentrate burner.
[0003]
In the auto smelting method, it is important how the smelting reaction is completed in the reaction tower, and one of the major factors is the concentrate burner. The concentrate burner is mainly composed of a wind box and a concentrate chute, and it is no exaggeration to say that the quality of the smelting reaction in the reaction tower is determined depending on the position of the outlet of the concentrate chute in the wind box. For this reason, it is usual to operate while adjusting the position of the concentrate chute each time. For this reason, the connection between the concentrate chute and the wind box is coupled via a flexible joint.
[0004]
That is, the flange of the wind box and the lower flange of the flexible joint, the flange of the concentrate chute and the upper flange of the flexible joint are aligned, and four bolts pass through these flanges at equal intervals. Install bolts on the lower side of the flange of the wind box, on the upper side of the flange on the lower side of the flexible joint, on the lower side of the flange on the upper side of the flexible joint, and on the upper side of the flange of the concentrate chute, and tighten these bolts It is fixed by.
[0005]
To change the position of the concentrate chute with such a concentrate burner, loosen all the nuts of the bolts facing each other structurally, and adjust the bolt tightening position so that each change adjustment direction is in the direction Then, the remaining two bolts are adjusted simultaneously. For this reason, there are many places where the nut is turned, which requires a lot of labor, and the position of the work seat for performing the change adjustment work is also determined in accordance with this work, and there is a problem that the surrounding space is narrowed.
[0006]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide a concentrate burner that solves the above-mentioned problems and makes it possible to simplify the change adjustment work of the concentrate chute with the concentrate burner via a flexible joint.
[0007]
[Means for Solving the Problems]
The concentrate burner of the present invention that solves the above problems is a concentrate burner in which a wind box and a concentrate chute are attached via a flexible joint, and the flange of the wind box and the lower flange of the flexible joint are aligned. The lower flange is formed , the flange of the concentrate chute and the upper flange of the flexible joint are combined to form the upper flange , and a plurality of bolts penetrate the upper and lower flanges at equal intervals, respectively. By fixing the nut to the lower part of the bolt, the bolt is prevented from dropping from the hole provided in the lower flange, and the upper flange is marked with a screw hole through which the bolt can be rotated by a screw mechanism. A wax-type boss is provided, and a detent nut is attached to the upper side of the boss.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings. FIG. 1 is an overall assembly cross-sectional view of an example of a concentrate burner of the present invention configured through a flexible joint, and FIG. 2 is a structural diagram showing an attachment portion of a concentrate chute in the concentrate burner.
[0009]
Deflection fitting 1 has at base rose-like shape 2, the upper and lower sides, flanges 5a connecting the concentrate chute 3 and the window pox 4, the 5b. The concentrate chute 3 and the wind box 4 are connected to the flexible joint 1 between the flange 6 of the concentrate chute 3 and the flange 5a on the upper side of the flexible joint 1 to form an upper flange , and on the lower side of the flexible joint 1 In a state where the flange 5b and the flange 7 of the windbox 4 are joined to form a lower flange, a gap between the flange 6 of the concentrate chute 3 constituting the upper flange and the flange 7 of the windbox 4 constituting the lower flange is formed. The bolt 8 and the nut 9 , the boss 10, and the nut 11 that pass through are fixed. Depending on the shape of the flange of the flexible joint 1, the bolt 8 may pass through the flanges 5 a and 5 b of the flexible joint 1 disposed inside the flange 6 of the concentrate chute 3 and the flange 7 of the window box 4. May be.
[0010]
Specifically, an indicia-shaped boss 10 is attached to the flange 6 of the concentrate chute 3, and the aforementioned bolt 8 passes through the boss 10, and the bolt 8 and the boss 10 are screwed. A nut 11 for preventing rotation is provided on the upper side of the boss 10. A nut 12 is fixed to the upper end of the bolt 8 by welding.
[0011]
Further, at the joint portion between the flange 7 of the windbox 4 and the flange 5b on the lower side of the flexible joint 1, the nut 9 and the nut 13 are respectively attached to the bolts 8 so as to sandwich the flange 7 of the wind box 4 constituting the lower flange. the mounted, on the bolt 8 at a constant torque is clamped in a rotatable state, securing the respective nut 9 and the nut 13 on the bolt 8 by a pin 14.
[0012]
The change or adjustment of the position of the concentrate chute with the concentrate burner of the present invention is performed as follows. First, the nut 11 around the flange 6 of the concentrate chute 3 is loosened. Then, the nut 12 fixed to the upper end of the bolt 8 is rotated. At this time, the nut 9 and the nut 13 of the flange 7 on the lower side of the windbox 4 are fixed to the bolt 8 by the pin 14 , so that the bolt 8 does not change its position with respect to the flange 7 of the windbox 4. It only rotates. On the other hand, the flange 6 of the concentrate chute 3, the screw mechanism of the bolt 8 and the boss 10, the flange 6 of the concentrate chute 3 is moved position becomes the expanding and contracting the bellows portion 2 as a result, the bending joint 1, The position change, inclination, and verticality of the concentrate chute 3 change.
[0013]
As mentioned above, the concentrate burner of the present invention is a concentrate burner constructed by joining a concentrate chute and the window box via a deflection fitting, a position of the concentrate chute penetrating between the flanges It is adjusted by the tightness of all bolts. More this, only a nut mounted on a boss provided on concentrate burner flange, become capable of performing repositioning concentrate chute conveniently reposition the concentrate chute conventionally can be adjusted.
[0014]
【The invention's effect】
According to the present invention, when the position of the concentrate chute is changed, the bolt tightening work is significantly reduced compared to the prior art, and the change adjustment work is extremely easy. Also, in the past, it was necessary to install the work seat below the flange of the windbox in order to perform position change adjustment work, but according to the present invention , as in the lower part of the flange of the concentrate chute, The work seat can be installed at a high position , and the actual work space can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall cross-sectional view of an example of a concentrate burner according to the present invention configured through a flexible joint.
FIG. 2 is a detailed view showing the attachment part of the concentrate chute in the concentrate burner of FIG.
[Explanation of symbols]
1 --- flexible joint 2 --- bellows-like shape 3--concentration chute 4 --- windpox 5 --- flange 6 --- flange 7 --- flange 8 --- bolt 9-- -Nut 10 --- Boss 11 --- Nut 12 --- Nut 13 --- Nut 14 --- Pin

Claims (1)

In a concentrate burner in which the wind box and the concentrate chute are attached via a flexible joint, the flange of the wind box and the lower flange of the flexible joint are combined to form the lower flange, and the flange of the concentrate chute And the upper flange of the flexible joint are combined to form an upper flange , and a plurality of bolts pass through the upper and lower flanges at equal intervals, and a bolt is secured by fixing a nut to the lower part of each bolt. An indicia-shaped boss with a screw hole through which a bolt can be rotated by a screw mechanism is provided on the upper surface of the upper flange so as not to fall from a hole provided in the lower flange. A concentrate burner with a nut on the upper side.

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