CN2797385Y

CN2797385Y - Reducing pot for smelting magnesium

Info

Publication number: CN2797385Y
Application number: CN 200520109494
Authority: CN
Inventors: 秦光明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-10
Filing date: 2005-06-10
Publication date: 2006-07-19
Anticipated expiration: 2015-06-10

Abstract

The utility model relates to a reduction pot used in the process of smelting magnesium, particularly a novel reduction pot for smelting magnesium, which comprises a pot body (1), a water cooling jacket (2) and vacuum branch pipes (3), wherein the vacuum branch pipes (3) can be connected with an external vacuum system in order to vacuumize the pot body (1). The utility model is characterized in that the vacuum branch pipes (3) are at least two. The utility model improves the structure of reduction pots for smelting magnesium, and specifically, the pot body is provided with at least two vacuum branch pipes which can be connected with the external vacuum system. In the process of working, only one vacuum branch pipe needs to be communicated with the external vacuum system and the rest of the vacuum branch pipes are temporarily sealed. When the surface of the pot body, especially the area distributed in a crescent shape at the top, are obviously abraded, the pot body can be continuously used after rotated a certain angle so that the service life of the reduction pot is prolonged.

Description

Novel magnesium smelting reduction pot

Technical field

The utility model relates to a kind of reduction jar that uses, especially novel magnesium smelting reduction pot in magnesium metal smelting.

Background technology

In the magnesium metal smelting process, use the reduction jar at present in a large number, simultaneously nearly more than 1200 the reduction jars of MAGNESIUM METAL manufacturing enterprise of producing 10000 tons per year are in work, the working temperature of reduction jar is at 1100-1250 ℃, operating pressure 1-13Pa (vacuum), tank body adopts high-temperature alloy steel usually, its total length 3000-3450mm, length in the work of furnace high-temperature district is about 2500-2900mm, rest part stretches out outside the stove, magnesium crystallizer and potassium sodium trap are housed in the tank body of stove outside part usually, in order to make magnesium crystallization under the temperature about 600 ℃, watercooling jacket is installed outside tank body, by recirculated water cooling cooling, tank body also connects vacuum system by a vacuum manifold, is a kind of magnesium smelting reduction pot that generally uses at present as shown in Figure 1.Reduction jar need be placed in the reduction furnace during work, reduction furnace is a down-draft kiln, is again a heating and regenerative furnace, and high-temperature flue gas enters burner hearth and carries out heat exchange with the reduction jar from the combustion chamber, by the pellet of reduction jar heating in it.

The part that the reduction jar is worked in stove had both been born high temperature, its inside vacuumizes again, cause the outside to bear barometric point simultaneously, as shown in Figure 2, in heat-processed, high-temperature flue gas continuously washes away tank surface, increase along with duration of service, tank surface, especially it is the most serious that the top is zone (dash area among the figure) wearing and tearing that crescent distributes, be easy to cause and subside or bore a hole, cause tank body just to lose efficacy in about about 30 days using, yet this moment, tank base did not occur and the similar wear phenomenon in top.

Summary of the invention

The purpose of this utility model provides a kind of novel magnesium smelting reduction pot than common reduction jar longer service life.

The technical solution of the utility model is:

A kind of novel magnesium smelting reduction pot comprises tank body, watercooling jacket and can be connected with the external vacuum system so that the vacuum manifold that tank body is vacuumized that its special feature is that described vacuum manifold has 2 at least.

Wherein vacuum manifold has 2.

Wherein vacuum manifold is along described tank body circumferential direction equally distributed substantially 2.

Wherein 2 vacuum manifold all with the vertical substantially same plane of tank body axis on.

Wherein vacuum manifold has 3.

Wherein vacuum manifold is along described tank body circumferential direction equally distributed substantially 3.

Wherein 3 vacuum manifold all with the vertical substantially same plane of tank body axis on.

Wherein vacuum manifold is connected with the external vacuum system by flange or elastic expansion joint.

The utility model improves the structure of magnesium smelting reduction pot, specifically be on tank body, to be provided with at least two vacuum manifold that can be connected with the external vacuum system, only need a vacuum manifold and external vacuum system connectivity in the working process, remaining vacuum manifold is temporarily sealed, work as tank surface, especially after the top is the zone generation noticeable wear of crescent distribution, tank body can be rotated to an angle, make the location that wearing and tearing take place in support place near the combustion chamber, and the position that noticeable wear does not take place accordingly is positioned at the top and is subject to high-temperature flue gas near furnace roof and washes away the place, because the external vacuum system is fixed normally, therefore to use another vacuum manifold after the tank body rotation instead near the external vacuum system, and with all the other vacuum manifold sealings, thereby continue to use the work-ing life that has prolonged the reduction jar.

Usually vacuum manifold and external vacuum system are welded in the prior art in addition,, caused the inconvenience in the dismounting, and adopted elastic expansion joint or flange to connect in the utility model all than being easier to dismounting though guaranteed sealing effectiveness.

Description of drawings

Accompanying drawing 1 is the structural representation of existing magnesium smelting reduction pot in the utility model background technology;

Accompanying drawing 2 is the structural representation of existing reduction furnace in the utility model background technology;

Accompanying drawing 3 is the structural representation of the utility model embodiment 1;

Accompanying drawing 4 is that the A-A of Fig. 3 is to sectional view;

Accompanying drawing 5 is the structural representation of the utility model embodiment 2.

Embodiment

Come the utility model is described in further detail below in conjunction with accompanying drawing:

Embodiment 1:

As shown in Figure 3, the utility model comprises tank body 1, watercooling jacket 2 and can be connected with the external vacuum system so that the vacuum manifold 3 that tank body 1 is vacuumized, wherein vacuum manifold 3 has 2 and along tank body 1 circumferential direction uniform distribution substantially, i.e. about 180 degree angles, space.

Further, as shown in Figure 4, two vacuum manifold 3 all with the vertical substantially same plane of tank body 1 axis on, promptly two vacuum manifold 3 are rotated about 180 degree angles with it and can be continued to use about the axis symmetry of tank body 1 after the wearing and tearing of tank body 1 top.

Because the external vacuum system of existing magnesium smelting reducing stove is fixed on reduction jar top, therefore a vacuum manifold 3 that normally is positioned at reduction jar top is connected by flange with vacuum system, and the another vacuum manifold 3 that is positioned at the below is temporarily sealed, behind the about 180 degree angles of tank body 1 rotation, the vacuum manifold 3 of former sealing is opened and is connected with vacuum system by flange equally, and another vacuum manifold 3 sealings are got final product.

In addition, wherein vacuum manifold 3 is stretched out the outer end of tank body 1 and can also be connected elastic expansion joint, the one, constitute with the external vacuum system and to removably connect, the 2nd, still can normally connect under the situation that allows position or angle of rotation in vacuum manifold 3 to have certain error.

Embodiment 2:

As shown in Figure 5, wherein vacuum manifold 3 has 3 and along tank body 1 circumferential direction uniform distribution substantially, be about 120 degree angles, space, and two vacuum manifold 3 all with the vertical substantially same plane of tank body 1 axis on, only there is one to be positioned at the top and to be connected with vacuum system during work near the vacuum manifold 3 of external vacuum system, all the other two vacuum manifold 3 are sealing temporarily all, after tank body 1 top wearing and tearing, it is rotated about 120 degree angles and can use another vacuum manifold 3 instead and be connected, seal other 2 vacuum manifold simultaneously with the external vacuum system.

Rest part is substantially the same manner as Example 1.

Claims

1, a kind of novel magnesium smelting reduction pot comprises tank body (1), watercooling jacket (2) and can be connected with the external vacuum system so that the vacuum manifold (3) that tank body (1) is vacuumized that it is characterized in that: described vacuum manifold (3) has 2 at least.

2, novel magnesium smelting reduction pot as claimed in claim 1 is characterized in that: wherein vacuum manifold (3) has 2.

3, novel magnesium smelting reduction pot as claimed in claim 2 is characterized in that: wherein vacuum manifold (3) is along equally distributed substantially 2 of described tank body (1) circumferential direction.

4, novel magnesium smelting reduction pot as claimed in claim 3 is characterized in that: wherein 2 vacuum manifold (3) all with the vertical substantially same plane of tank body (1) axis on.

5, novel magnesium smelting reduction pot as claimed in claim 1 is characterized in that: wherein vacuum manifold (3) has 3.

6, novel magnesium smelting reduction pot as claimed in claim 5 is characterized in that: wherein vacuum manifold (3) is along equally distributed substantially 3 of described tank body (1) circumferential direction.

7, novel magnesium smelting reduction pot as claimed in claim 6 is characterized in that: wherein 3 vacuum manifold (3) all with the vertical substantially same plane of tank body (1) axis on.

8, as any described novel magnesium smelting reduction pot in the claim 1 to 7, it is characterized in that: wherein vacuum manifold (3) is connected with the external vacuum system by flange or elastic expansion joint.