Tail gas treatment device for aluminum alloy casting

Abstract

The utility model relates to the technical field of tail gas treatment, and discloses a tail gas treatment device for aluminum alloy casting, which comprises a box body, a Y-shaped pipe I is fixed at the top of the box body, and the tail gas treatment device for aluminum alloy casting drives two groups of cams to rotate synchronously through a linkage assembly, a rotating rocker and a rotating rod which are arranged. One group of cams does not abut against the bottom of one group of fixing plates any more, at the moment, one group of springs I are released to drive the fixing plates and the sealing covers to be separated from the gas outlet of the Y-shaped pipe I, the bottom of the other group of cams abuts against the fixing plates to drive the other group of sealing covers to ascend, the other gas outlet of the Y-shaped pipe I is blocked, and at the moment, waste gas enters the box body from the other gas outlet of the Y-shaped pipe I; and the sealing door corresponding to the filter plate needing to be replaced is opened, the filter plate is pulled out for replacement, casting and filtering work does not need to be stopped, personnel can conveniently judge which set of filter plate works through the arranged reminding piece, and meanwhile the rocker can be limited.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device for aluminum alloy smelting and casting. Background Art

[0002] Aluminum alloy is the most widely used nonferrous metal structural material in industry, and is widely used in aviation, aerospace, automobiles, machinery manufacturing, shipbuilding, and the chemical industry. When heating and melting aluminum alloys in existing casting furnaces, a certain amount of waste gas is generated and dispersed in the furnace.

[0003] According to a disclosed exhaust gas treatment device for aluminum alloy smelting and casting (publication number: CN217092583U), the conveying pipe on the top of the air intake hood in the above application will be started by an externally driven suction device to absorb the exhaust gas inside the casting furnace. When the exhaust gas is sucked into the air intake hood and passes through the filter in the filter plate, the exhaust gas itself will be filtered by the filter and discharged upward. When the filter on the filter plate contacts the filter when the exhaust is driven by the suction, it will drive the filter plate to move upward and contact the striking rod, causing the filter plate itself to vibrate and the dust mixed in the filter inside the filter to fall off, making it convenient for the continuous use of the filter, thereby preventing harmful gases from being discharged into the external environment and ensuring the health and safety of the operator himself.

[0004] However, in the above application, the filtering effect of the filter plate will inevitably decline after long-term use, and personnel need to replace it. However, in the above application, when replacement is required, the filtering work can only be stopped to replace the filter plate, which is inefficient and affects the aluminum alloy casting process. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust gas treatment device for aluminum alloy smelting and casting, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an exhaust gas treatment device for aluminum alloy smelting and casting, comprising a box body, a Y-shaped tube 1 being fixed to the top of the box body, the Y-shaped tube 1 being in communication with the box body, a partition being fixed to the inner wall of the box body, and a linkage assembly being provided inside and on the surface of the box body, the linkage assembly comprising:

[0007] Rotating rod, the rotating rod is rotatably connected to the inner wall of the box body, the rotating rod penetrates through the partition board, and the rotating rod is connected to the partition board through a sealing bearing. The rotating rod penetrates through a cam, and the rotating rod is fixedly connected to the cam. The surface of the box body is rotatably connected to a rocker. The output shaft of the rocker penetrates through the box body, and the output shaft of the rocker is fixedly connected to the surface of the rotating rod. A stabilizing groove is opened on the inner wall of the box body. A fixing plate is slidably connected to the inner wall of the stabilizing groove. A sealing cover is fixed on the top of the fixing plate. A first spring is fixed on the top of the fixing plate, and the top of the first spring is fixed to the top inner wall of the box body. A bottom plate is fixed on the surface of the partition board. The linkage assembly further includes a reminder member. When the rocker is rotated, the rotating rod rotates, driving the two groups of cams to rotate synchronously. One group of cams no longer touches the bottom of one group of fixing plates. At this time, one group of first springs is released, driving the fixing plate and the sealing cover to separate from the air outlet of the first Y-shaped pipe. The bottom fixing plate of the other group of cams touches, driving the other group of sealing covers to rise, so as to block the other air outlet of the first Y-shaped pipe. At this time, the waste gas enters the box body from the other air outlet of the first Y-shaped pipe. The sealing cover is made of rubber material and can be deformed to increase the sealing performance.

[0008] Preferably, the reminder member includes a connecting groove opened on the surface of the rocker. A fixing block is fixed on the surface of the box body. A sliding groove is opened at one end of the fixing block close to the rocker. A connecting block is slidably connected to the inner wall of the sliding groove. A second spring is fixed at one end of the connecting block away from the rocker, and the other end of the second spring is fixed to the inner wall of the sliding groove. When the rocker rotates, the inner wall of the connecting groove touches the inclined surface of the connecting block, causing the connecting block to enter the sliding groove, and the second spring is compressed. When the position of the other group of connecting blocks is parallel to the connecting groove, the other group of second springs is released, driving the connecting block to enter the connecting groove, so that personnel can judge which group of filter plates is working through the positions of the two groups of connecting blocks and the connecting groove.

[0009] Preferably, stabilizing plates are fixed on the surface and inner wall of the partition board and the box body. Filter plates are placed on the top of the stabilizing plates. A sealing door is connected to the surface of the box body, and the waste gas can be filtered.

[0010] Preferably, a second Y-shaped pipe is fixed on the back of the box body, and the box body communicates with the second Y-shaped pipe. One end of the second Y-shaped pipe away from the box body is connected to an air suction pump, and the suction end of the air suction pump is fixedly connected to the second Y-shaped pipe, and the filtered waste gas can be pumped out.

[0011] Preferably, two groups of cams, stabilizing grooves, fixing plates, first springs, sealing covers, and bottom plates are provided, and the two groups of cams, stabilizing grooves, fixing plates, first springs, sealing covers, and bottom plates are symmetrically arranged with the center line of the box body as the axis of symmetry, and the two groups of cams face in opposite directions, and the air outlets of the first Y-shaped pipe can be blocked alternately.

[0012] Preferably, two sets of the filter plates, the stabilizing plates, and the sealing doors are provided, and the two sets of filter plates, stabilizing plates, and sealing doors are symmetrically arranged with the center line of the box body as the axis of symmetry, which is convenient for alternating the filtering work.

[0013] Preferably, two sets of the fixed blocks, the sliding grooves, the connecting blocks, and the second springs are provided, and the two sets of fixed blocks, sliding grooves, connecting blocks, and second springs are symmetrically arranged with the center line of the rocker as the axis of symmetry. The cross-section of the end of the connecting block away from the second spring is triangular, which can be used to judge which set of filter plates is working.

[0014] Compared with the prior art, the present utility model provides an exhaust gas treatment device for aluminum alloy melting and casting, having the following beneficial effects:

[0015] 1. For the exhaust gas treatment device for aluminum alloy melting and casting, by setting the linkage assembly, when the rocker is rotated, the rotating rod rotates, driving the two sets of cams to rotate synchronously. One set of cams no longer abuts against the bottom of one set of fixing plates. At this time, one set of first springs is released, driving the fixing plates and the sealing covers to separate from the air outlet of the first Y-shaped pipe. The fixing plate at the bottom of the other set of cams abuts, driving the other set of sealing covers to rise, so as to block the other air outlet of the first Y-shaped pipe. At this time, the waste gas enters the box body from the other air outlet of the first Y-shaped pipe and is filtered by the other set of filter plates. Open the sealing door corresponding to the filter plate that needs to be replaced, and draw out the filter plate for replacement without stopping the melting and casting and filtering work. By setting the reminder member, it is convenient for personnel to judge which set of filter plates is working, and at the same time, the rocker can be limited.

[0016] 2. For the exhaust gas treatment device for aluminum alloy melting and casting, the two sets of filter plates and the air extraction pump are provided to filter the gas generated during melting and casting, avoiding the influence of waste gas on personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view structural diagram of the present utility model;

[0018] Figure 2 is an internal structural diagram of the present utility model;

[0019] Figure 3 is a side view structural diagram of the present utility model;

[0020] Figure 4 is a partial front view structural diagram of the present utility model;

[0021] Figure 5 is a partial sectional view structural diagram of the present utility model.

[0022] In the figure: 1. Box body; 2. Sealing door; 3. Y-shaped tube 1; 4. Partition; 5. Stabilizing plate; 6. Filter plate; 7. Suction pump; 8. Y-shaped tube 2; 9. Linking assembly; 90. Rotating rod; 91. Rocker; 92. Cam; 93. Stabilizing groove; 94. Fixed plate; 95. Spring 1; 96. Sealing cover; 97. Bottom plate; 98. Reminder; 980. Connecting groove; 981. Fixed block; 982. Slide; 983. Connecting block; 984. Spring 2. DETAILED DESCRIPTION

[0023] like Figures 1 - 5 As shown, the utility model provides a technical solution: an exhaust gas treatment device for aluminum alloy smelting and casting, including a box body 1, a Y-shaped tube 3 is fixed on the top of the box body 1, the Y-shaped tube 3 is communicated with the box body 1, a partition 4 is fixed on the inner wall of the box body 1, and a linkage component 9 is provided inside and on the surface of the box body 1. The linkage component 9 includes: a rotating rod 90, a rocker 91, a cam 92, a stabilizing groove 93, a fixing plate 94, a spring 95, a sealing cover 96, a bottom plate 97, a reminder member 98, a connecting groove 980, a fixing block 981, a slide groove 982, a connecting block 983, and a spring 984.

[0024] The rotating rod 90 is rotatably connected to the inner wall of the box body 1, and the rotating rod 90 passes through the partition 4, and the rotating rod 90 is connected to the partition 4 through a sealed bearing. The rotating rod 90 passes through a cam 92, and the rotating rod 90 is fixedly connected to the cam 92. The surface of the box body 1 is rotatably connected to the rocker 91, and the output shaft of the rocker 91 passes through the box body 1, and the output shaft of the rocker 91 is fixedly connected to the surface of the rotating rod 90. A stable groove 93 is provided on the inner wall of the box body 1, and a fixed plate 94 is slidably connected to the inner wall of the stable groove 93. A sealing cover 96 is fixed to the top of the fixed plate 94, and a spring 95 is fixed to the top of the inner wall of the box body 1. A bottom plate 97 is fixed to the surface of the partition 4. The dynamic component 9 also includes a reminder part 98. When the rocker 91 is rotated, the rotating rod 90 rotates, driving the two groups of cams 92 to rotate synchronously. One group of cams 92 no longer conflicts with the bottom of a group of fixed plates 94. At this time, a group of springs 95 are released, driving the fixed plate 94 and the sealing cover 96 to separate from the Y-shaped tube 3 air outlet. The bottom of another group of cams 92 conflicts with the fixed plate 94, driving another group of sealing covers 96 to rise, so that the other air outlet of the Y-shaped tube 3 is blocked. At this time, the exhaust gas enters the box body 1 from the other air outlet of the Y-shaped tube 3, and is filtered through another group of filter plates 6. The sealing door 2 corresponding to the filter plate 6 that needs to be replaced is opened, and the filter plate 6 is pulled out for replacement without stopping the melting and filtering work.

[0025] The reminder member 98 includes a connecting groove 980 which is opened on the surface of the rocker 91. A fixing block 981 is fixed on the surface of the box body 1. One end of the fixing block 981 close to the rocker 91 is provided with a sliding groove 982. A connecting block 983 is slidably connected to the inner wall of the sliding groove 982. One end of the connecting block 983 away from the rocker 91 is fixed with a second spring 984. The other end of the second spring 984 away from the connecting block 983 is fixed on the inner wall of the sliding groove 982. When the rocker 91 rotates, the inner wall of the connecting groove 980 abuts against the inclined surface of the connecting block 983, causing the connecting block 983 to enter the sliding groove 982, and the second spring 984 is compressed. When the position of the other set of connecting blocks 983 is parallel to the connecting groove 980, the other set of second springs 984 is released, driving the connecting block 983 to enter the connecting groove 980. It enables personnel to judge which group of filter plates 6 is working through the positions of the two sets of connecting blocks 983 and the connecting groove 980, facilitating replacement. At the same time, the connecting block 983 can limit the connecting groove 980 and the rocker 91 to prevent the rotating rod 90 from rotating self, affecting the sealing of the sealing cover 96.

[0026] The partition plate 4 and the surface and inner wall of the box body 1 are both fixed with stabilizing plates 5. The filter plate 6 is placed on the top of the stabilizing plate 5. The surface of the box body 1 is connected with a sealing door 2, which can perform the filtration work on the waste gas. The sealing door 2 can prevent the waste gas from overflowing. The back of the box body 1 is fixed with a second Y-shaped pipe 8, and the box body 1 communicates with the second Y-shaped pipe 8. One end of the second Y-shaped pipe 8 away from the box body 1 is connected with an air suction pump 7. The suction end of the air suction pump 7 is fixedly connected with the second Y-shaped pipe 8, facilitating the discharge of the filtered gas. There are two sets of the cam 92, the stabilizing groove 93, the fixing plate 94, the first spring 95, the sealing cover 96, and the bottom plate 97. And the two sets of the cam 92, the stabilizing groove 93, the fixing plate 94, the first spring 95, the sealing cover 96, and the bottom plate 97 are symmetrically arranged with the center line of the box body 1 as the axis of symmetry, and the two sets of cams 92 face in opposite directions, which can alternately block the air outlet of the first Y-shaped pipe 3, facilitating the replacement of the filter plate 6.

[0027] There are two sets of the filter plate 6, the stabilizing plate 5, and the sealing door 2. And the two sets of the filter plate 6, the stabilizing plate 5, and the sealing door 2 are symmetrically arranged with the center line of the box body 1 as the axis of symmetry, facilitating the alternate filtration work. There are two sets of the fixing block 981, the sliding groove 982, the connecting block 983, and the second spring 984. And the two sets of the fixing block 981, the sliding groove 982, the connecting block 983, and the second spring 984 are symmetrically arranged with the center line of the rocker 91 as the axis of symmetry. The cross-section of the end of the connecting block 983 away from the second spring 984 is triangular, facilitating personnel to judge which group of filter plates 6 is working, and it can limit the rocker 91.

[0028] When casting aluminum alloy, the Y-shaped pipe 3 is docked with the air outlet of the melting furnace. At this time, the suction pump 7 is turned on, and the waste gas enters the box body 1 through the Y-shaped pipe 3, is filtered by the filter plate 6, and is discharged through the Y-shaped pipe 2 and the suction end of the suction pump 7 to avoid the waste gas affecting personnel. When the filter plate 6 needs to be replaced, the rocker 91 is rotated at this time, the rotating rod 90 rotates, driving the two groups of cams 92 to rotate synchronously. One group of cams 92 no longer touches the bottom of one group of fixed plates 94. At this time, one group of springs 95 is released, driving the fixed plate 94 and the sealing cover 96 to separate from the air outlet of the Y-shaped pipe 3. The bottom fixed plate 94 of the other group of cams 92 touches, driving the other group of sealing covers 96 to rise, so as to block the other air outlet of the Y-shaped pipe 3. At this time, the waste gas enters the box body 1 through the other air outlet of the Y-shaped pipe 3 and is filtered by the other group of filter plates 6. At this time, the operator can open the corresponding sealing door 2 of the filter plate 6 to be replaced, take out the filter plate 6 for replacement, without stopping the melting and filtering work, improving the processing efficiency. At the same time, when the rocker 91 rotates, the inner wall of the connecting groove 980 touches the inclined surface of the connecting block 983 at this time, so that the connecting block 983 enters the sliding groove 982, and the spring 984 is compressed. When the position of the other group of connecting blocks 983 is parallel to the connecting groove 980, the other group of springs 984 is released at this time, driving the connecting block 983 to enter the connecting groove 980. The operator can judge which group of filter plates 6 is working through the positions of the two groups of connecting blocks 983 and the connecting groove 980, which is convenient for replacement. When the connecting groove 980 touches the surface of the upper connecting block 983, the filter plate 6 on the right side of the partition 4 works. When the connecting groove 980 touches the surface of the lower connecting block 983, the filter plate 6 on the left side of the partition 4 works. At the same time, the connecting block 983 can limit the connecting groove 980 and the rocker 91 to prevent the rotating rod 90 from rotating self, affecting the sealing of the sealing cover 96. At the same time, the bottom plate 97 can support the fixed plate 94 to increase the stability of the fixed plate 94.

[0029] The above generally describes the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements without departing from the spirit of the present invention are all within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for aluminum alloy melting and casting, comprising a box body (1), characterized in that: A Y-shaped pipe 1 (3) is fixed to the top of the box body (1). The Y-shaped pipe 1 (3) communicates with the box body (1). A partition plate (4) is fixed to the inner wall of the box body (1). A linkage assembly (9) is arranged inside and on the surface of the box body (1). The linkage assembly (9) includes: A rotating rod (90) is rotatably connected to the inner wall of the box body (1). The rotating rod (90) penetrates through the partition plate (4), and the rotating rod (90) is connected to the partition plate (4) through a sealing bearing. A cam (92) is penetrated by the rotating rod (90), and the rotating rod (90) is fixedly connected to the cam (92). A rocker (91) is rotatably connected to the surface of the box body (1). The output shaft of the rocker (91) penetrates through the box body (1), and the output shaft of the rocker (91) is fixedly connected to the surface of the rotating rod (90). A stable groove (93) is formed in the inner wall of the box body (1). A fixing plate (94) is slidably connected to the inner wall of the stable groove (93). A sealing cover (96) is fixed to the top of the fixing plate (94). A first spring (95) is fixed to the top of the fixing plate (94). The top of the first spring (95) is fixed to the top inner wall of the box body (1). A bottom plate (97) is fixed to the surface of the partition plate (4). The linkage assembly (9) further includes a reminder member (98).

2. The tail gas treatment device for aluminum alloy melting and casting according to claim 1, wherein: The reminder member (98) includes a connection groove (980) formed in the surface of the rocker (91). A fixing block (981) is fixed to the surface of the box body (1). A sliding groove (982) is formed at one end of the fixing block (981) close to the rocker (91). A connection block (983) is slidably connected to the inner wall of the sliding groove (982). A second spring (984) is fixed to one end of the connection block (983) away from the rocker (91). The other end of the second spring (984) away from the connection block (983) is fixed to the inner wall of the sliding groove (982).

3. An exhaust gas treatment device for aluminum alloy melting and casting according to claim 1, characterized in that: Stabilizing plates (5) are fixed to both the surface and the inner wall of the partition plate (4) and the box body (1). A filter plate (6) is placed on the top of the stabilizing plate (5). A sealing door (2) is connected to the surface of the box body (1).

4. An exhaust gas treatment device for aluminum alloy melting and casting according to claim 1, characterized in that: A Y-shaped pipe 2 (8) is fixed to the back of the box body (1), and the box body (1) communicates with the Y-shaped pipe 2 (8). One end of the Y-shaped pipe 2 (8) away from the box body (1) is connected to an air suction pump (7), and the suction end of the air suction pump (7) is fixedly connected to the Y-shaped pipe 2 (8).

5. The tail gas treatment device for aluminum alloy melting and casting according to claim 1, characterized in that: Two sets of the cam (92), the stable groove (93), the fixing plate (94), the first spring (95), the sealing cover (96), and the bottom plate (97) are provided. The two sets of the cam (92), the stable groove (93), the fixing plate (94), the first spring (95), the sealing cover (96), and the bottom plate (97) are symmetrically arranged with the center line of the box body (1) as the axis of symmetry, and the two sets of cams (92) face in opposite directions.

6. The tail gas treatment device for aluminum alloy melting and casting according to claim 3, characterized in that: Two sets of the filter plate (6), the stabilizing plate (5), and the sealing door (2) are provided. The two sets of the filter plate (6), the stabilizing plate (5), and the sealing door (2) are symmetrically arranged with the center line of the box body (1) as the axis of symmetry.

7. An exhaust gas treatment device for aluminum alloy melting and casting according to claim 2, characterized in that: The fixed blocks (981), sliding grooves (982), connecting blocks (983), and second springs (984) are all provided in two groups, and the two groups of fixed blocks (981), sliding grooves (982), connecting blocks (983), and second springs (984) are symmetrically arranged with the center line of the rocker (91) as the axis of symmetry. The cross section of the end of the connecting block (983) far from the second spring (984) is triangular.

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