CN103334127A

CN103334127A - Tungsten rod for smelting

Info

Publication number: CN103334127A
Application number: CN 201310208876
Authority: CN
Inventors: 王永; 左铁军; 张军伟; 王振会
Original assignee: Luoyang High-Tech Yongjie Tungsten & Molybdenum Material Co Ltd
Current assignee: Luoyang High-Tech Yongjie Tungsten & Molybdenum Material Co Ltd
Priority date: 2013-08-14
Filing date: 2013-08-14
Publication date: 2013-10-02

Abstract

The invention relates to a tungsten rod for smelting, and belongs to the field of rare earth smelting. A uniform thickening layer is disposed on an outer wall of a tungsten rod body at the position being 10 cm far away from a liquid level of a smelting furnace; both the upper and lower ends of the thickening layer are provided with transition conical surfaces combined with the outer wall of the tungsten rod; the outer part of the thickening layer is uniformly wrapped by a cooling pipe; the lower pipe port of the cooling pipe is communicated with an external cooling liquid inlet channel; and the upper pipe port of the cooling pipe is communicated with an external cooling liquid outlet channel. The tungsten rod can effectively reduce oxidation speed of the rod body when the tungsten rod is used for a rare earth smelting process, and accordingly, the service life of the tungsten rod is prolonged.

Description

A kind of smelting tungsten bar

[technical field]

The present invention relates to the rare-earth smelting field, especially relate to a kind of for the tungsten bar that uses in the rare-earth smelting process.

[background technology]

Known, the existing tungsten bar that uses in rare-earth smelting is isometrical tungsten bar, because it need be worked under the environment of high temperature, and be exposed to the barred body of smelting furnace liquid level top, especially be positioned at the severity the most of the tungsten bar barred body oxidation at 10cm place, smelting furnace liquid level top, therefore, in actual applications, the barred body that the tungsten bar correspondence is positioned at 10cm place, smelting furnace liquid level top can be tapered because of oxidation, and finally causes tungsten bar to rupture, and then causes scrapping of whole tungsten bar.

[summary of the invention]

In order to overcome the deficiency in the background technology, the invention discloses a kind of smelting tungsten bar, when described tungsten bar uses, can effectively slow down the speed of barred body oxidation in the rare-earth smelting process, thereby prolong the work-ing life of tungsten bar accordingly.

For achieving the above object, the present invention adopts following technical scheme:

A kind of smelting tungsten bar, the outer wall at 10cm place, described tungsten bar barred body corresponding smelting furnace liquid level top is provided with uniform thickening layer, and the two ends up and down of thickening layer are equipped with the transition conical surface of being combined with the tungsten bar outer wall; Described thickening layer outside is tied with cooling tube uniformly, and the lower end mouth of pipe of cooling tube is communicated with outside cooling fluid route, and the upper end mouth of pipe of cooling tube is communicated with the cooling fluid outlet of outside.

Described smelting tungsten bar, described tungsten bar diameter is 80mm, and described thickening layer diameter is 110mm, and the thickening floor height is 10cm.

Described smelting tungsten bar, described thickening layer and the tungsten bar integrative-structure for being made by tungsten.

Described smelting tungsten bar is wound in outside the thickening layer after the pipe shaft correspondence of described cooling tube lower end seals the excellent heart that runs through thickening layer and tungsten bar more uniformly.

Because adopt aforesaid technical scheme, the present invention has following beneficial effect:

Smelting tungsten bar of the present invention, described tungsten bar adopts and strengthens the barred body diameter dimension that is positioned at smelting furnace liquid level top, and can assemble corresponding circulating cooling pipe at barred body as required, thereby reach the speed of effectively having slowed down the barred body oxidation when in the rare-earth smelting process, using, and then by prolonging the work-ing life of tungsten bar, reduced production cost for the user accordingly.

[description of drawings]

Fig. 1 is synoptic diagram of the present invention;

Fig. 2 is another structural representation of the present invention.

Among the figure: 1, tungsten bar; 2, thickening layer; 3, the transition conical surface; 4, cooling tube; 5, cooling fluid route; 6, cooling fluid outlet.

[embodiment]

Can explain the present invention in more detail by the following examples, disclose purpose of the present invention and be intended to protect all changes and improvements in the scope of the invention that the present invention is not limited to the following examples:

1 described smelting tungsten bar by reference to the accompanying drawings, described tungsten bar 1 barred body diameter is 80mm, the outer wall at 10cm place evenly is provided with a circle thickening layer 2 above the corresponding smelting furnace liquid level of tungsten bar 1 barred body, the diameter of this thickening layer 2 is 110mm, highly be 10cm, namely effectively prolong the time that this part attenuates by the thickening layer 2 of strengthening the easy oxidized portion of corresponding tungsten bar 1 barred body, and then improve accordingly the work-ing life of tungsten bar 1 integral body; The two ends up and down of described thickening layer 2 are equipped with the transition conical surface 3 with the level and smooth combination of tungsten bar 1 outer wall; For ease of making, can be made the thickening layer 2 and tungsten bar 1 of integrative-structure by tungsten;

2 described smelting tungsten bars by reference to the accompanying drawings, for further slowing down the speed that barred body that tungsten bar 1 is positioned at smelting furnace liquid level top attenuates because of oxidation, can cooling tube 4 be set thickening layer 2 outside windings uniformly, and the lower end mouth of pipe of cooling tube 4 is communicated with the cooling fluid route 5 of outside, the upper end mouth of pipe of cooling tube 4 is communicated with the cooling fluid outlet 6 of outside, namely utilize the cooling fluid that flows at cooling tube 4 internal recycle to effectively reduce the temperature of thickening layer 2, thereby reach the purpose of slowing down oxidation rate;

In addition, as required, the excellent heart that the pipe shaft correspondence sealing of cooling tube 4 lower ends can be run through thickening layer 2 and tungsten bar 1, and then the cooling tube 4 that will run through out upwards is wrapped in uniformly the outer wall of thickening layer 2, utilize the excellent heart of 4 pairs of tungsten bars 1 of cooling tube to cool off earlier thereby reached, and then the outer wall of thickening layer 2 is carried out cooling purpose.

When implementing smelting of the present invention and using tungsten bar, earlier described tungsten bar 1 being fixed in corresponding tungsten cathode connects in the electricity folder, and the horizontal central line correspondence that makes thickening layer 2 is positioned at the position of smelting furnace liquid level top 10cm, what namely tungsten bar 1 barred body by thickening had effectively prolonged herein easy oxidized portion attenuates the time in corresponding work-ing life that increases tungsten bar 1; In addition, when adopting cooling tube 4 structures as required, corresponding with the outside cooling fluid of mouth of pipe difference of two ends up and down that also only need will be wound in the cooling tube 4 of thickening layer 2 outer walls passes in and out pipeline connection, make outside coolant circulates overcooling pipe 4, thereby reach the purpose that described thickening layer 2 is lowered the temperature by cooling tube 4, and then effectively slowed down oxidized speed herein;

Through repeatedly experiment contrast, heavily about 86 kilograms of the isometrical tungsten bar that an existing diameter is 80mm, can produce 6 tons of rare earths, be that one ton of rare earth of every production will expend about 14.3 kilograms tungsten bar, and a described tungsten bar overall weight that adds diameter 110mm thickening layer is about 103 kilograms, can produce 12 tons of rare earths, namely utilize described tungsten bar to produce rare earth, one ton of rare earth of every production consumes about 8.5 kilograms tungsten bar; Because China's rare earth year actual capacity is about 200,000 tons, therefore, in prediction on such basis, uses described tungsten bar just can reduce in 1 year and consume about 1160 tons tungsten bar.

Part not in the detailed description of the invention is prior art, so the present invention is not described in detail.

Claims

1. smelting tungsten bar is characterized in that: the outer wall at 10cm place, described tungsten bar (1) barred body corresponding smelting furnace liquid level top is provided with uniform thickening layer (2), and the two ends up and down of thickening layer (2) are equipped with the transition conical surface (3) of being combined with tungsten bar (1) outer wall; Described thickening layer (2) outside is tied with cooling tube (4) uniformly, and the lower end mouth of pipe of cooling tube (4) is communicated with outside cooling fluid route (5), and the upper end mouth of pipe of cooling tube (4) is communicated with the cooling fluid outlet (6) of outside.

2. smelting tungsten bar according to claim 1, it is characterized in that: described tungsten bar (1) diameter is 80mm; Described thickening layer (2) diameter is 110mm, and height is 10cm.

3. smelting tungsten bar according to claim 1 is characterized in that: described thickening layer (2) and the integrative-structure of tungsten bar (1) for being made by tungsten.

4. smelting tungsten bar according to claim 1 is characterized in that: upwards be wound in uniformly outside the thickening layer (2) after the pipe shaft correspondence of described cooling tube (4) lower end seals the excellent heart that runs through thickening layer (2) and tungsten bar (1) again.