Filter for vacuum ladle

Abstract

The utility model relates to the technical field of metal smelting, and provides a filter for a vacuum ladle, which is arranged between an air inlet pipe and a negative pressure pipe of the vacuum ladle and comprises a filter body, an air inlet flange pipe and an air outlet flange pipe are respectively arranged at two ends of the filter body, the air inlet flange pipe is communicated with the air inlet pipe, and the air outlet flange pipe is communicated with the negative pressure pipe. The air outlet flange pipe is communicated with the negative pressure pipe, a partition plate structure is arranged at the upper end of the filter body, the upper end of the partition plate structure is fixedly connected with the upper end of the filter body, the lower end of the partition plate structure is located in the filter body, and the partition plate structure is formed by connecting a blind plate arranged at the upper end and a partition plate arranged at the lower end. Under the action of the partition plate of the filter disclosed by the utility model, high-temperature sublimates cannot enter the negative pressure pipe and the metal hose to cause pipeline blockage, so that the use amount of siphons and the metal hose is reduced, the production cost is reduced, the workload of replacing the siphons is reduced, the operation time is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal smelting technical field especially relates to a filter for vacuum ladle. BACKGROUND

[0002] In prior art, the medium filled in the vacuum ladle is high-temperature molten magnesium chloride and liquid magnesium, and in high-temperature environment, the volatilization of the melt will produce dust particles. Moreover, in the process of vacuumizing, if the operation is not careful, the liquid magnesium and other substances may be sucked into the pipeline, thereby causing pipeline blockage and metal hose burnout and other conditions.

[0003] Once this situation occurs, it will at least cause difficult material pumping, causing siphon and metal hose blockage, and at most cause material unable to stop flowing in time relying on vacuumizing, even causing equipment damage, and in serious cases, it may also cause personnel casualties.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a filter for vacuum ladle, the filter is arranged at the connecting place between the air inlet pipe and the negative pressure pipe of the vacuum ladle top, the filter is blocked by the baffle in the filter, so that solid particles and dust are deposited to the bottom of the filter by gravity, and then the problem that liquid magnesium and other substances may be sucked into the pipeline in the process of vacuumizing of the vacuum ladle, thereby causing pipeline blockage and metal hose burnout and other conditions can be solved by regular manual cleaning.

[0006] The filter for vacuum ladle is arranged between the air inlet pipe and the negative pressure pipe of the vacuum ladle, and the filter comprises a filter body, air inlet flange pipes and air outlet flange pipes are arranged at the two ends of the filter body respectively, the air inlet flange pipes are communicated with the air inlet pipe, the air outlet flange pipes are communicated with the negative pressure pipe, a baffle structure is arranged at the upper end of the filter body, the upper end of the baffle structure is fixedly connected with the upper end of the filter body, the lower end of the baffle structure is located in the filter body, and the baffle structure is connected by a blind plate arranged at the upper end and a baffle arranged at the lower end.

[0007] Further, a flat welding flange is arranged at the upper end of the filter body, a plurality of first connecting grooves are uniformly arranged on the outer edge of the flat welding flange in the circumferential direction.

[0008] Further, the outer diameter of the flat welding flange is same with the outer diameter of the blind plate, a plurality of second connecting grooves corresponding to the first connecting grooves are uniformly arranged on the outer edge of the blind plate in the circumferential direction.

[0009] Further, the first connecting grooves and the second connecting grooves are fixedly connected by stud bolts.

[0010] Further, the width of the partition plate is the same as the inner diameter of the filter body.

[0011] Further, the placement direction of the partition plate in the filter body is perpendicular to the axis direction of the air inlet flange pipe or the air outlet flange pipe.

[0012] Further, the filter body is made of a seamless steel pipe, and the bottom is blocked by welding. The inner diameter of the filter body is 250mm.

[0013] Further, the partition plate is made of a steel plate with a size of 250mm*300mm*10mm.

[0014] Compared with the prior art, the filter has the following advantages:

[0015] The filter is connected between the air inlet pipe and the negative pressure pipe of the vacuum ladle, the high-temperature melt enters the ladle through the siphon pipe under the action of vacuum, and the sublimates generated by the high-temperature melt and liquid magnesium are small in density and enter the air inlet pipe arranged on the upper part of the manhole under vacuum, and the air inlet pipe is communicated with the filter, the gas entering the filter is blocked by the partition plate and deposited at the bottom of the filter, and the deposit at the bottom of the filter is cleaned periodically. Under the action of the filter partition plate, the high-temperature sublimates cannot enter the "7"-shaped pipe and the metal hose, thereby preventing the pipeline from being blocked, reducing the use amount of the siphon pipe and the metal hose, reducing the production cost, reducing the workload of replacing the siphon pipe, saving the operation time, and improving the production efficiency. Further, the reasonable solution to the blockage condition reduces the production cost and effectively prevents accidents. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic view of the filter for the vacuum ladle of the utility model;

[0017] Figure 2 Fig. 2 is a top view of the filter body in the filter for the vacuum ladle of the utility model;

[0018] Figure 3 Fig. 3 is a bottom view of the partition plate structure in the filter for the vacuum ladle of the utility model;

[0019] Figure 4 Fig. 4 is a structural schematic view of the filter for the vacuum ladle of the utility model connected with the vacuum ladle.

[0020] Wherein, 1-negative pressure pipe; 2-filter body; 21-gas flange pipe; 22-gas flange pipe; 23-flat welding flange; 24-first connecting groove; 3-baffle structure; 31-blind plate; 32-baffle; 4-lifting bag shell; 5-lifting bag inner bag; 6-siphon pipe; 7-human-shaped cover; 8-metal hose connection; 9-sediment. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below with reference to the embodiments, but those skilled in the art will understand that the following embodiments are only used to illustrate the present application, and should not be regarded as limiting the scope of the present application.

[0022] According to the embodiments of the present application, referring to the accompanying Figures 1-4 The filter for the vacuum lifting bag is arranged between the gas inlet pipe at the top of the vacuum lifting bag and the negative pressure pipe 1, and the negative pressure pipe 1 is a "7" shaped pipe. The filter of the present application comprises: a filter body 2, both ends of the filter body 2 are respectively provided with a gas inlet flange pipe 21 and a gas outlet flange pipe 22, the gas inlet flange pipe 21 is in communication with the gas inlet pipe, the gas outlet flange pipe 22 is in communication with the negative pressure pipe (1), and the gas inlet flange pipe 21 and the gas outlet flange pipe 22 are also in communication with the inside of the filter body 2. A baffle structure 3 is arranged at the upper end of the filter body 2, the upper end of the baffle structure 3 is fixedly connected with the upper end of the filter body 2, the lower end of the baffle structure 3 is located inside the filter body 2, and the baffle structure 3 is connected by a blind plate 31 arranged at the upper end and a baffle 32 arranged at the lower end.

[0023] According to the embodiments of the present application, a flat welding flange 23 is fixedly arranged at the upper end of the filter body 2, and a plurality of first connecting grooves 24 are uniformly arranged on the outer edge of the flat welding flange 23 in the circumferential direction. The outer diameter of the flat welding flange 23 is the same as the outer diameter of the blind plate 31, and a plurality of second connecting grooves 311 corresponding to the positions of the first connecting grooves 24 are uniformly arranged on the outer edge of the blind plate 31 in the circumferential direction. The first connecting grooves 24 and the second connecting grooves 311 are fixedly connected by stud bolts, that is, the filter body 2 and the baffle structure 3 are fixed as a whole. The number of the first connecting grooves 24 and the second connecting grooves 311 can be set according to the actual situation, as long as the corresponding positions of the first connecting grooves 24 and the second connecting grooves 311 are arranged.

[0024] According to an embodiment of this utility model, the width of the partition 32 is the same as the inner diameter of the filter body 2. The placement direction of the partition 32 inside the filter body 2 is perpendicular to the axial direction of the inlet flange pipe 21 or the outlet flange pipe 22. This arrangement facilitates the flow of gas from the inlet flange pipe 21 from top to bottom. After passing through the partition 32, the lighter gas can then flow from bottom to top again to reach the upper end of the filter body 2, and then enter the negative pressure pipe 1 through the outlet flange pipe 22. Solid particles and dust carried in the gas are deposited to the bottom of the filter by gravity. The bottom of the negative pressure pipe 1 is a metal flexible hose connection 8.

[0025] According to an embodiment of the present invention, the filter body 2 adopts... The filter body 2 is made of seamless steel pipe, with a sealed and welded bottom. Its inner diameter is 250mm. 400mm is the outer diameter of the filter body 2, and 400mm is the height of the filter body 2. The baffle 32 is made of steel plate with a width of 250mm, a height of 300mm, and a thickness of 10mm. The inner diameter of the flat welding flange 23 with the first connecting groove 24 is 250mm, and the inner diameter of the blind plate 31 with the second connecting groove 311 is also 250mm. When it is necessary to remove the sediment 9 at the bottom of the filter, simply unscrew the nuts at both ends of the double-ended stud, remove the baffle structure 3, manually clean the dust, and then fix the baffle structure 3 back to the filter body 2.

[0026] According to embodiments of the present invention, such as Figure 4 As shown, due to the vacuum effect, the high-temperature melt enters the vacuum lifting ladle through the siphon pipe 6. The outermost tank is the lifting ladle shell 4, and the inner tank is the lifting ladle inner liner 5. The high-temperature melt enters the lifting ladle inner liner 5 through the siphon pipe 6 under vacuum. The sublimation products generated by the high-temperature melt and liquid magnesium, due to their lower density, enter the air inlet pipe located on the upper part of the man-shaped cover 7. The air inlet pipe is connected to a filter. The gas entering the filter is blocked by baffles and condenses, depositing at the bottom of the filter. The deposits 9 at the bottom of the filter are cleaned periodically. Thanks to the filter baffles, the high-temperature sublimation products will not enter the "7"-shaped tube and metal hose, thus preventing pipe blockage. This reduces the amount of siphon pipe 6 and metal hose used, lowering production costs. It also reduces the workload of replacing the siphon pipe 6, saving operation time and improving production efficiency. Furthermore, by effectively solving the pipe blockage problem and reducing production costs, it also effectively prevents accidents.

[0027] It should be noted that the filter of this utility model has been applied to 10 vacuum lifting structures in our workshop, and all of them are working well. It effectively reduces the number of siphon tubes 6 and metal hoses used, improves work efficiency, reduces the labor intensity of replacing siphon tubes 6 and metal hoses, and also reduces production costs.

[0028] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

Claims

1. A filter for a vacuum lifting package, disposed between the air inlet pipe and the negative pressure pipe (1) of the vacuum lifting package, characterized in that, The filter includes a filter body (2), with an inlet flange pipe (21) and an outlet flange pipe (22) respectively provided at both ends of the filter body (2). The inlet flange pipe (21) is connected to the inlet pipe, and the outlet flange pipe (22) is connected to the negative pressure pipe (1). The upper end of the filter body (2) is provided with a partition structure (3), the upper end of the partition structure (3) is fixedly connected to the upper end of the filter body (2), the lower end of the partition structure (3) is located inside the filter body (2), and the partition structure (3) is formed by connecting a blind plate (31) provided at the upper end and a partition plate (32) provided at the lower end.

2. The filter for vacuum lifting according to claim 1, characterized in that, The upper end of the filter body (2) is provided with a flat welding flange (23), and a plurality of first connecting grooves (24) are evenly opened along the circumferential direction on the outer edge of the flat welding flange (23).

3. The filter for vacuum lifting according to claim 2, characterized in that, The outer diameter of the flat welding flange (23) is the same as the outer diameter of the blind plate (31). Multiple second connecting grooves (311) corresponding to the first connecting groove (24) are uniformly opened along the circumferential direction on the outer edge of the blind plate (31).

4. The filter for vacuum lifting according to claim 3, characterized in that, The first connecting groove (24) and the second connecting groove (311) are fixedly connected by double-ended studs.

5. The filter for vacuum lifting according to claim 1, characterized in that, The width of the partition (32) is the same as the inner diameter of the filter body (2).

6. The filter for vacuum lifting according to claim 1, characterized in that, The placement direction of the baffle (32) within the filter body (2) is perpendicular to the axial direction of the inlet flange (21) or outlet flange (22).

7. The filter for vacuum lifting according to claim 1, characterized in that, The filter body (2) adopts The filter body (2) is made of seamless steel pipe with bottom sealing and welding, and has an inner diameter of 250mm.

8. The filter for vacuum lifting according to claim 1, characterized in that, The partition (32) is made of a steel plate of 250mm×300mm×10mm.

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