CN216011795U - End flow type fire blocking interceptor - Google Patents

Abstract

The utility model provides an end flow type fire blocking interceptor, which relates to the technical field of magnesium smelting and solves the technical problems that the existing magnesium smelting fire blocking plate in the prior art does not have the filtering function and has poor heat blocking effect; the interceptor body is oppositely provided with an inlet side and an outlet side, the inlet side is circumferentially provided with a first overflowing hole, and the first overflowing hole is communicated with the outermost side annular flow passage; the outlet side is provided with a second overflowing hole which is communicated with the innermost annular flow passage; the utility model discloses under the smooth and easy prerequisite of magnesium vapour circulation, through forming the cooling ladder, when guaranteeing that the thermal radiation blocks the effect, impurity in the effective filtration magnesium vapour improves and smelts the magnesium quality.

Description

End flow type fire blocking interceptor

Technical Field

The utility model relates to a magnesium smelting technical field, concretely relates to end flow type keeps off fire interceptor.

Background

Current metal smelting furnace sets up the fire damper usually in its inside for block the heat radiation in the interior high temperature chamber of metal smelting furnace, current fire damper equipartition has a plurality of through-holes on it, at the in-process that uses, the magnesium vapour stream passes through the through-hole, finally gets into the crystallization chamber, at this in-process, the effect that blocks heat radiation can be played to a certain extent to the fire damper, however, it is not only that heat radiation blocks the effect not good to current fire damper, can't filter the impurity in the magnesium vapour moreover, influences the magnesium smelting quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an end-flow type fire blocking interceptor to solve the technical problems that the existing magnesium-smelting fire blocking plate in the prior art has no filtering function and poor heat blocking effect; the utility model provides a plurality of technical effects that the preferred technical scheme in a plurality of technical schemes can produce (the first interception body and the second interception body are both set as the barrel structure, can form the diversion cavity, have the function of filtering impurities in magnesium steam through the annular flow passage inside, the open end edge of the first interceptor is provided with a first annular edge groove, the open end edge of the second interceptor is provided with a second annular edge groove, the first annular edge groove and the second annular edge groove enclose a welding groove, which is convenient for the welding of the first interception body and the second interception body, is convenient for installation, and simultaneously adopts the structural mode, the first interception body and the second interception body can be cast in batches, effectively reducing the production cost, the cross section shape of the welding groove is set as V-shaped, which is convenient for processing, the first interception body is provided with a first diversion sleeve, the second interception body is provided with a second diversion sleeve, can form a curved flow passage reciprocating along the axial direction, the formation of a cooling gradient is facilitated; according to the difference of the number of the first flow guide sleeve and the second flow guide sleeve, various specifications and various structures can be formed; the first overflowing hole is arranged on the first interception body, one side of the first interception body forms an inlet side, the second overflowing hole is arranged on the second interception body, and one side of the second interception body forms an outlet side; the edge of the second interception body is provided with an annular flange which is used for installing the end-flow type fire blocking interceptor; the first overflowing hole is arranged to be a long round hole so as to facilitate magnesium steam to enter, the second overflowing hole is provided with a chamfer so as to facilitate magnesium steam to be discharged, and the whole end-flow type fire blocking interceptor is smooth in flow and the like); see below for details.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of end flow type keeps off fire interceptor, including the interceptor body, wherein: annular flow channels are sequentially sleeved in the interceptor body from inside to outside along the radial direction, and the adjacent annular flow channels are sequentially communicated; the interceptor body is oppositely provided with an inlet side and an outlet side, the inlet side is circumferentially provided with a first overflowing hole, and the first overflowing hole is communicated with the outermost side annular flow passage; and a second overflowing hole is formed in the outlet side and communicated with the innermost annular flow passage.

Preferably, the interceptor body comprises a first interceptor body and a second interceptor body, wherein: the first interception body is arranged into a barrel structure with one open end; the second interception body is of a barrel structure with an opening at one end; the opening end of the first interception body is connected with the opening end of the second interception body to form a flow guide cavity in a surrounding mode, and the annular flow channel is arranged in the flow guide cavity.

Preferably, a first annular edge groove is formed in the edge position of the opening end of the first interception body, a second annular edge groove is formed in the edge position of the opening end of the second interception body, and the first annular edge groove and the second annular edge groove enclose a welding groove.

Preferably, the cross-sectional shape of the welding groove is provided in a V shape.

Preferably, a first flow guiding sleeve is arranged inside the first interception body, and a second flow guiding sleeve is arranged inside the second interception body, wherein: the inner cavity of the second flow guide sleeve axially penetrates through the second interception body, one end port of the second flow guide sleeve forms the second overflowing hole, and the other end port of the second flow guide sleeve is located in the first flow guide sleeve.

Preferably, the number of the first flow guide sleeves is multiple, all the first flow guide sleeves are sequentially sleeved from inside to outside along the radial direction, and a first annular clamping cavity is formed between every two adjacent first flow guide sleeves; the number of the second flow guide sleeves is multiple, all the second flow guide sleeves are sequentially sleeved from inside to outside along the radial direction, a second annular clamping cavity is formed between every two adjacent second flow guide sleeves, and the inner cavity of the innermost second flow guide sleeve axially penetrates through the second interception body; the first flow guide sleeve is inserted into the second annular clamping cavity, and the second flow guide sleeve is inserted into the first annular clamping cavity so as to sequentially sleeve the annular flow channel.

Preferably, the first overflowing holes are circumferentially and uniformly arranged on one side, away from the second interception body, of the first interception body; the second overflowing hole is arranged on one side, far away from the first interception body, of the second interception body.

Preferably, the second interception body extends outwards from a position of one side edge of the first interception body and forms an annular flange.

Preferably, the first overflowing hole is provided as an oblong hole.

Preferably, the second overflowing hole is provided with a chamfer.

The utility model provides a pair of end flow type keeps off fire interceptor has following beneficial effect at least:

the end-flow type fire blocking interceptor comprises an interceptor body, and the interceptor body is installed in the metal smelting furnace.

The interceptor body is inside to be equipped with annular runner along radially in proper order, and is adjacent annular runner communicates in proper order, and when magnesium vapour flowed through annular runner, annular runner can form the cooling gradient, not only can effectively block the heat radiation, through reducing gradually of temperature moreover, makes the impurity in the magnesium vapour can crystallize in the interceptor body is internal to have the effect of playing filtering impurity, improve and smelt the magnesium quality.

The interceptor body is provided with inlet side and outlet side relatively, inlet side circumference evenly is provided with first discharge orifice, first discharge orifice is linked together with outside annular channel, the outlet side is provided with the second discharge orifice, the second discharge orifice is linked together with the most inboard annular channel, and at the in-process that uses, magnesium vapour flows in through first discharge orifice, flows out by the second discharge orifice, and the first discharge orifice that circumference evenly set up makes the inflow of magnesium vapour more even, has good circulation.

The utility model discloses under the smooth and easy prerequisite of magnesium vapour circulation, through forming the cooling ladder, when guaranteeing that the thermal radiation blocks the effect, impurity in the effective filtration magnesium vapour improves and smelts the magnesium quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of another perspective structure of the present invention;

fig. 3 is a schematic sectional view of embodiment 1 of the present invention;

fig. 4 is a schematic cross-sectional view of embodiment 2 of the present invention;

fig. 5 is a schematic cross-sectional view of a first blocking body in embodiment 2 of the present invention;

fig. 6 is a schematic sectional view of a second blocking body in embodiment 2 of the present invention;

FIG. 7 is a process diagram of the manufacturing method of the present invention;

fig. 8 is a graph of the detection temperature curve of embodiment 1 of the present invention;

fig. 9 is a graph of the detection temperature curve of embodiment 2 of the present invention;

FIG. 10 is a graph of the temperature measurement without steam outlet with and without interceptor at 1200 deg.C;

FIG. 11 is a graph of the temperature measurements taken at 1260 deg.C with and without the steam outlet of the interceptor of the present invention;

FIG. 12 is a bar graph showing the effect of the interceptor on the content of impurities in magnesium vapor under 1200 deg.C heating;

FIG. 13 is a bar graph showing the effect of the interceptor on the content of impurities in magnesium vapor heated at 1260 deg.C;

FIG. 14 is a bar graph showing the effect of different heating temperature conditions on the elemental content of crystallized magnesium when using an interceptor.

Reference numerals

1. An interceptor body; 11. a first interceptor; 111. a first overflow aperture; 112. a first flow guide sleeve; 113. a first annular clamp chamber; 114. a first annular side groove; 12. a second interceptor; 121. a second overflowing hole; 122. a second flow guide sleeve; 123. an annular flange; 124. a second annular clamp cavity; 125. a second annular side groove; 126. chamfering; 2. an annular flow passage.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

the utility model provides an end flow formula interceptor that keeps off fire, as shown in fig. 1-3, end flow formula interceptor that keeps off fire includes interceptor body 1, and interceptor body 1 is inside to be equipped with annular flow channel 2 along radially following interior cover in proper order to the outside, and adjacent annular flow channel 2 communicates the setting in proper order.

The interceptor body 1 is relatively provided with an inlet side and an outlet side, the periphery of the inlet side is uniformly provided with first overflowing holes 111 in the circumferential direction, and the first overflowing holes 111 are communicated with the outermost annular flow channel 2.

The outlet side is provided with a second overflowing hole 121, and the second overflowing hole 121 is communicated with the innermost annular flow passage 2.

The end-flow type fire blocking interceptor is arranged in the metal smelting furnace, and when the end-flow type fire blocking interceptor is used, magnesium steam enters the outermost annular flow passage 2 through the first overflowing holes 111, then flows to the innermost annular flow passage 2 and flows out through the second overflowing holes 121.

In the process, the magnesium steam is cooled in stages, so that on one hand, the heat radiation in a high-temperature area of the metal smelting furnace can be blocked, and on the other hand, impurities in the magnesium steam can be crystallized in the annular flow passage 2, so that the effect of filtering the impurities is achieved.

The utility model discloses not only have the effect that blocks heat radiation, can filter the impurity that contains in the magnesium vapour moreover, improve and smelt the magnesium quality.

The utility model discloses along with constantly solidifying of impurity, need regularly clear up or directly change new the end-flow type interceptor that keeps off a fire.

As an alternative embodiment, as shown in fig. 3, the interceptor body 1 comprises a first interceptor body 11 and a second interceptor body 12, the first interceptor body 11 and the second interceptor body 12 being cast.

The first interceptor 11 is configured as a tub structure having an open end.

The second interceptor body 12 is configured as a tub structure having one open end.

The open end of the first interceptor body 11 is connected with the open end of the second interceptor body 12 to enclose a flow guiding chamber in which the annular flow channel 2 is arranged.

The split bodies are arranged on the first interception body 11 and the second interception body 12, so that the production and the assembly are convenient.

As an alternative embodiment, as shown in fig. 3, the open end of the first interception body 11 is provided with a first annular edge groove 114 along the edge position, the open end of the second interception body 12 is provided with a second annular edge groove 125 along the edge position, and the first annular edge groove 114 and the second annular edge groove 125 are matched in size, and can form a welding groove to facilitate welding.

As an alternative embodiment, as shown in fig. 3, the cross-sectional shape of the welding groove is provided in a V shape.

Similarly, the cross-sectional shape of the welding groove may also be provided as an arc or the like.

As an alternative embodiment, the first flow-through openings 111 are arranged uniformly circumferentially on the side of the first baffle body 11 facing away from the second baffle body 12, the side of the first baffle body 11 facing away from the second baffle body 12 forming the inlet side.

The second flow-through hole 121 is provided at a central position of a side of the second interceptor 12 remote from the first interceptor 11, the side of the second interceptor 12 remote from the first interceptor 11 forming the outlet side.

As an alternative embodiment, as shown in fig. 3, the second interceptor body 12 extends outwardly away from a side location of the first interceptor body 11 and forms an annular flange 123, the annular flange 123 being used for the installation of the end-flow fire blocker.

As an alternative embodiment, as shown in fig. 1, the first overflowing hole 111 is provided as an oblong hole.

As shown in fig. 2, the second overflowing hole 121 is provided as a circular hole.

As an alternative embodiment, as shown in fig. 1 and 3, the second overflowing hole 121 is provided with a chamfer 126, and the chamfer 126 is a round chamfer.

As an alternative embodiment, as shown in fig. 3, the first interceptor body 11 is internally provided with a first baffle sleeve 112, and the second interceptor body 12 is internally provided with a second baffle sleeve 122.

The inner cavity of the second flow guiding sleeve 122 axially penetrates through the second interception body 12, one end port of the second flow guiding sleeve 122 forms a second overflowing hole 121, and the other end port of the second flow guiding sleeve 122 is positioned in the first flow guiding sleeve 112.

A communication gap exists between the first flow guide sleeve 112 and the inner bottom wall of the second interception body 12, and a communication gap exists between the second flow guide sleeve 122 and the inner top wall of the first interception body 11, so that an annular flow passage 2 is formed in the flow guide chamber and sequentially sleeved from inside to outside.

Example 2

Example 2 differs from example 1 in that:

as shown in fig. 4 to 6, the number of the first guide sleeves 112 is two, all the first guide sleeves 112 are sequentially sleeved from inside to outside along the radial direction, and a first annular clamping cavity 113 is formed between adjacent first guide sleeves 112.

The number of the second flow guiding sleeves 122 is two, all the second flow guiding sleeves 122 are sequentially sleeved from inside to outside along the radial direction, a second annular clamping cavity 124 is formed between adjacent second flow guiding sleeves 122, and only the innermost second flow guiding sleeve 122 axially penetrates through the second interceptor body 12.

The first flow guiding sleeve 112 is inserted into the second annular clamping cavity 124, and the second flow guiding sleeve 122 is inserted into the first annular clamping cavity 113, so as to sequentially sleeve the annular flow passage 2.

Example 2 has a longer annular flow passage 2 than example 1.

The end-flow type fire blocking interceptor has various specifications according to the number of the first deflector sleeve 112 and the second deflector sleeve 122.

The heat resistance and the filtering function of the end-flow type fire blocking interceptor are both based on the cooling effect, and the temperature of the end-flow type fire blocking interceptor is detected for proving the cooling effect.

As shown in fig. 8, fig. 8 is a temperature curve diagram of example 1, an abscissa shown in fig. 8 is a position coordinate, an ordinate is a temperature coordinate of a furnace wall of the metal smelting furnace, an abscissa axis is along an axial direction of the metal smelting furnace, an origin of the coordinate axis is located at a position where an outlet of the end-flow type fire blocking interceptor extends 300mm to a high temperature zone, a direction toward the outlet of the end-flow type fire blocking interceptor is a positive coordinate axis direction, and a direction opposite thereto is a negative coordinate axis direction, so that the position coordinate of the outlet position of the end-flow type fire blocking interceptor is +300 mm; as can be seen from the temperature curve of fig. 8, the end-flow type fire damper interceptor has a cooling effect.

As shown in fig. 9, fig. 9 is a temperature graph of example 2, the abscissa and ordinate of fig. 9 are schematically the same as the abscissa and ordinate of fig. 8, and only the lowest temperature of the ordinate is 550 ℃, as can be seen from the temperature graph of fig. 9, the end-flow type fire damper interceptor has a cooling effect.

As shown in fig. 10, fig. 10 is a temperature profile of the end-flow type firestop interceptor with and without the end-flow type firestop interceptor at a furnace temperature of 1200 ℃.

As shown in fig. 11, fig. 11 is a graph of the temperature of the end-flow type firestop interceptor with and without the end-flow type firestop interceptor at a furnace temperature of 1260 ℃.

Referring to fig. 10 and 11, when the end-flow type fire blocking interceptor is not provided, the highest temperature at the magnesium steam outlet can reach 736 ℃ (hearth 1200 ℃) to 765 ℃ (hearth 1260 ℃), and when the end-flow type fire blocking interceptor is provided, the highest temperature at the magnesium steam outlet is 600 ℃ (hearth 1200 ℃) to 620 ℃ (hearth 1260 ℃), so that the temperature at the magnesium steam outlet is greatly reduced after the end-flow type fire blocking interceptor is used, the temperature reduction amplitude exceeds 100 ℃, and the temperature reduction effect is remarkable.

For verifying it reaches the effect of filtering impurity through the cooling of end flow type fire blocking interceptor, uses metal-smelting furnace end flow type fire blocking interceptor with do not use end flow type fire blocking interceptor carries out the impurity content and detects.

As shown in fig. 12, under the heating condition of 1200 ℃, the end-flow type fire blocking interceptor can obviously reduce the content of four impurity elements, namely aluminum, manganese, silicon and calcium, the content of silicon and manganese can be reduced to be less than 20ppm, the content of aluminum element is about 60ppm, and the content of calcium element is about 200ppm, but compared with the content of calcium element when the end-flow type fire blocking interceptor is not used, the content of calcium element is obviously reduced in the process of refining crystallized magnesium.

As shown in fig. 13, under the heating condition of 1260 ℃, the end-flow type fire blocking interceptor can obviously reduce the content of four impurity elements, namely aluminum, manganese, silicon and calcium, the content of silicon and manganese can be reduced to be less than 20ppm, the content of aluminum is about 60ppm, and the content of calcium is about 300ppm, but compared with the content of calcium when the end-flow type fire blocking interceptor is not used, the content of calcium is significantly reduced in the refining process of crystallized magnesium.

Therefore, the end-flow fire-blocking interceptor has an obvious impurity filtering effect, so that the quality of magnesium smelting can be effectively ensured.

Comparing fig. 13 with fig. 12, in comparison with the heating condition of 1200 ℃, under the heating condition of 1260 ℃, the calcium content in the crystallized magnesium is relatively stable, while the contents of the elements aluminum, manganese and silicon are respectively increased by 34.59%, 77.11% and 87.56%, and when the end-flow type fire blocking interceptor is provided, the temperature rise has almost no influence on the contents of the elements aluminum, manganese and silicon, but the calcium content is increased by 100 ppm; as further seen in fig. 14 in conjunction with fig. 14, the temperature increase has little effect on the content of aluminum, manganese, silicon, iron elements in the crystallized magnesium, but the increase from 1200 c to 1260 c significantly increases the content of calcium elements and decreases the content of zinc elements because the temperature increase of magnesium vapor makes it more difficult for calcium fluoride impurities therein to condense in the end-flow type fire blocker and thus enter the crystallizer.

Therefore, in the actual use process of the end-flow type fire blocking interceptor, the heating temperature can be controlled to meet the filtration requirement of corresponding impurities.

To sum up, the utility model discloses can effectively reduce the temperature, current fire baffle compares, not only can realize thermal radiation's the stopping, has the filtering action that is showing moreover, effectively improves and smelts the magnesium quality.

Referring to fig. 7, the manufacturing method of the present invention is as follows:

step I: obtaining a first interceptor body 11 with a first flow guide sleeve 112 arranged inside by casting;

obtaining a second interceptor body 12 with a second flow guide sleeve 122 arranged inside by casting;

step II: attaching the open end of the first interceptor body 11 to the open end of the second interceptor body 12 so that the first annular side groove 114 and the second annular side groove 125 enclose a welding groove;

step III: welding along the welding groove, and butting the first interceptor body 11 and the second interceptor body 12, thereby completing the manufacture of the end-flow type fire interceptor.

The manufacturing method has the advantages of simple process and low cost, can realize the batch production of the end-flow type fire blocking interceptor, and is convenient for market popularization.

In the description of the present application, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a flowing in end formula interceptor that keeps off a fire which characterized in that, includes the interceptor body, wherein:

annular flow channels are sequentially sleeved in the interceptor body from inside to outside along the radial direction, and the adjacent annular flow channels are sequentially communicated;

the interceptor body is oppositely provided with an inlet side and an outlet side, the inlet side is circumferentially provided with a first overflowing hole, and the first overflowing hole is communicated with the outermost side annular flow passage;

and a second overflowing hole is formed in the outlet side and communicated with the innermost annular flow passage.

2. The endwise firestop interceptor of claim 1, wherein the interceptor body comprises a first interceptor body and a second interceptor body, wherein:

the first interception body is arranged into a barrel structure with one open end;

the second interception body is of a barrel structure with an opening at one end;

the opening end of the first interception body is connected with the opening end of the second interception body to form a flow guide cavity in a surrounding mode, and the annular flow channel is arranged in the flow guide cavity.

3. The sidestream fire blocking interceptor of claim 2, wherein said first interceptor body open end is peripherally provided with a first annular edge groove, said second interceptor body open end is peripherally provided with a second annular edge groove, and said first and second annular edge grooves define a weld groove.

4. The end-flow fire blocker according to claim 3, wherein the cross-sectional shape of the weld channel is configured as a V-shape.

5. The endwise firestop interceptor of claim 2, wherein the first interceptor body is internally provided with a first flow deflector sleeve and the second interceptor body is internally provided with a second flow deflector sleeve, wherein:

the inner cavity of the second flow guide sleeve axially penetrates through the second interception body, one end port of the second flow guide sleeve forms the second overflowing hole, and the other end port of the second flow guide sleeve is located in the first flow guide sleeve.

6. The end-flow fire blocking interceptor of claim 5, wherein the number of the first deflector sleeves is plural, all the first deflector sleeves are sequentially sleeved from inside to outside along a radial direction, and a first annular clamping cavity is formed between adjacent first deflector sleeves;

the number of the second flow guide sleeves is multiple, all the second flow guide sleeves are sequentially sleeved from inside to outside along the radial direction, a second annular clamping cavity is formed between every two adjacent second flow guide sleeves, and the inner cavity of the innermost second flow guide sleeve axially penetrates through the second interception body;

the first flow guide sleeve is inserted into the second annular clamping cavity, and the second flow guide sleeve is inserted into the first annular clamping cavity so as to sequentially sleeve the annular flow channel.

7. The sidestream fire blocking interceptor of claim 2, wherein said first flowthrough apertures are circumferentially uniformly disposed on a side of said first interceptor body distal from said second interceptor body;

the second overflowing hole is arranged on one side, far away from the first interception body, of the second interception body.

8. The end-flow fire stop interceptor of claim 6, wherein the second interceptor body extends outwardly away from a side location of the first interceptor body and forms an annular flange.

9. The sidestream fire blocking interceptor of claim 1, wherein said first flowthrough aperture is configured as an oblong hole.

10. The sidestream fire blocking interceptor of claim 1, wherein said second flowthrough bore is provided with a chamfer.

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