Exhaust device for aluminum bar machining

Abstract

The utility model relates to the field of aluminum bar processing, in particular to an exhaust device for aluminum bar processing, which comprises an air inlet pipe, a communicating pipe fixedly connected to one side of the air inlet pipe, a processing box fixedly connected to the outer side of the communicating pipe, an air outlet pipe fixedly connected to one side of the processing box, and a first activated carbon plate and a connecting ring block arranged on the inner side of the air inlet pipe. A hinged shaft door plate is movably hinged to one side of the air inlet pipe through a hinge, a cleaning mechanism is arranged on the inner side of the air inlet pipe, a treatment mechanism is arranged on one side of the air inlet pipe, and the treatment mechanism comprises a cooling pipe arranged on the outer side of a communicating pipe. According to the fluorine-containing waste gas purification device, the exhaust gas flowing in the communicating pipe can be effectively reduced, and when the fluorine-containing waste gas enters the storage box containing the sodium hydroxide solution, the fluorine-containing waste gas is combined with the sodium hydroxide solution, so that the fluorine-containing waste gas is purified, and the pollution of the fluorine-containing waste gas contained in the waste gas to air is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum bar processing, in particular to an exhaust device for aluminum bar processing. Background Art

[0002] Aluminum bar processing is a process of converting raw aluminum bar into products of desired shape, size and performance through a series of process steps. During the smelting and casting process of aluminum bar, gases such as hydrogen and oxygen may be mixed into the melt. The presence of these gases will form pores or bubbles inside the aluminum bar, seriously affecting the quality and performance of the aluminum bar. Therefore, in order to ensure the quality of the aluminum bar, exhaust treatment is required to reduce the gas content in the melt.

[0003] After searching, in the prior art, Chinese Patent Publication No.: CN215901135U, Authorization Date: 2022-02-25, discloses an exhaust device for aluminum rod processing, comprising an outlet pipe, the right end of the outlet pipe is connected to a processing box, and the inner cavity of the outlet pipe is rotatably connected to a fan through a support frame, the right side of the fan is fixedly connected to a rotating rod, and the right end of the rotating rod extends to the interior of the processing box, the right end of the rotating rod is fixedly connected to a rotating plate, and the right side of the rotating plate is fixedly connected to a slider, and the inner cavity of the processing box is fixedly connected to a filter screen. The utility model relates to the technical field of aluminum rod processing. In the exhaust device for aluminum rod processing, under the blowing of the air flow from the outlet pipe, the fan rotates to drive the slider to slide in the slide groove, and because the rotating plate drives the slider to rotate, it drives the brush to do an up and down reciprocating motion to scrape the dust on the filter screen and drop it into the collection box, preventing the filter screen from being blocked, thereby improving the exhaust efficiency, and no electric equipment is required to drive it, reducing the production cost of the equipment, and facilitating the collection of particulate matter in the exhaust gas from aluminum rod processing.

[0004] However, the device still has the following defects: although the fan can be rotated by the blowing of air flow, thereby realizing the reciprocating motion of the brush and scraping off the dust on the filter, in the production of aluminum rods, in order to remove impurities in the aluminum liquid and improve the purity of the aluminum, fluorine-containing refining agents or fluxes are usually used. These fluorine-containing substances will decompose at high temperatures to produce fluorine-containing waste gases such as hydrogen fluoride. The direct discharge of fluorine waste gases will cause great harm to people's health and cause great pollution to the environment. Utility Model Content

[0005] In response to the above problems, the utility model provides an exhaust device for aluminum rod processing, comprising an air intake pipe, a connecting pipe fixedly connected to one side of the air intake pipe, a treatment box fixedly connected to the outside of the connecting pipe, an air outlet pipe fixedly connected to one side of the treatment box, a first activated carbon plate and a connecting ring block provided on the inside of the air intake pipe, a hinge door panel movably hinged to one side of the air intake pipe through a hinge, a cleaning mechanism provided on the inside of the air intake pipe, and a treatment mechanism provided on one side of the air intake pipe;

[0006] The processing mechanism includes a cooling pipe arranged on the outside of the connecting pipe, one side of the air intake pipe is fixedly connected to a water tank, both ends of the cooling pipe pass through the water tank, a water pump is provided on the outside of the cooling pipe, one end of the connecting pipe is fixedly connected to a fixed pipe, the fixed pipe is provided on the inside of the processing box, a storage box is provided on the inside of the processing box, and one end of the fixed pipe is provided on the inside of the storage box.

[0007] Furthermore, the cleaning mechanism includes a rotating rod rotatably connected to the inner side of the connecting ring block, a fan blade is fixedly connected to the outer side of the rotating rod, one end of the rotating rod is fixedly connected to a connecting plate, a movable ring block is provided on one side of the connecting plate, the inner side of the air intake pipe is slidingly connected to the movable plate, and the movable ring block is slidingly connected to the inner side of the movable plate, a cleaning brush is provided on one side of the movable plate, and the cleaning brush is provided on one side of the first activated carbon plate.

[0008] Furthermore, a fixing frame is fixedly connected to the lower side of the water tank, and a fan is provided on the inner side of the fixing frame.

[0009] Furthermore, a first water outlet pipe is fixedly connected to the inner side of the storage box, one end of the first water outlet pipe passes through the processing box, and a first valve body is provided on the outer side of the first water outlet pipe.

[0010] Furthermore, a second water outlet pipe is fixedly connected to the inner side of the water tank, and a second valve body is provided on the outer side of the second water outlet pipe.

[0011] Furthermore, a hinge door panel is fixedly connected to the inner side of the storage box, the hinge door panel is arranged on the lower side of the fixed tube, and the upper side of the hinge door panel is arranged at an angle.

[0012] Furthermore, a second activated carbon plate is fixedly connected to the inner side of the processing box, and the second activated carbon plate is arranged on a side of the storage box away from the connecting pipe.

[0013] Furthermore, a fixed plate is fixedly connected to the inner side of the air intake pipe, a sliding groove is opened on one side of the movable plate, the fixed plate is arranged on the inner side of the sliding groove, and the movable plate is slidably connected to the outer side of the fixed plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. The circulating flow of water inside the cooling tube in this device can effectively reduce the exhaust gas flowing inside the connecting tube. When the exhaust gas containing fluorine enters the storage box containing sodium hydroxide solution, the fluorine exhaust gas will combine with the sodium hydroxide solution, thereby purifying the fluorine exhaust gas and reducing the pollution of the air by the fluorine exhaust gas contained in the exhaust gas.

[0016] 2. The water tank in this device can be used to install and fix the fan through a fixing frame, and the fan can increase the flow speed of the air around the water tank through its own operation, thereby achieving cooling of the water source inside the water tank.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Shows a structural main body diagram according to an embodiment of the present utility model;

[0020] Figure 2 Shows a schematic cross-sectional view of an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of the second water outlet pipe and the first water outlet pipe according to an embodiment of the present utility model is shown;

[0022] Figure 4 A schematic structural diagram of a fixing frame and a fan according to an embodiment of the present utility model is shown;

[0023] Figure 5 A schematic structural diagram of a fixing plate and a cleaning brush according to an embodiment of the present utility model is shown.

[0024] In the figure: 1. Air inlet pipe; 2. Connecting pipe; 3. Second activated carbon plate; 4. Processing box; 5. Air outlet pipe; 6. Connecting ring block; 7. Cleaning mechanism; 71. Rotating rod; 72. Fan blade; 73. Connecting plate; 74. Moving ring block; 75. Moving plate; 76. Cleaning brush; 8. First activated carbon plate; 9. Processing mechanism; 91. Cooling pipe; 92. Water pump; 93. Water tank; 94. Fixed pipe; 95. Storage box; 101. First water outlet pipe; 102. First valve body; 111. Second water outlet pipe; 112. Second valve body; 121. Fixed frame; 122. Fan; 131. Slide groove; 132. Fixed plate; 14. Hinge door panel. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] The embodiment of the present invention provides an exhaust device for aluminum rod processing, including an air intake pipe 1, exemplarily, as Figure 1-Figure 5 shown.

[0027] One side of the air intake pipe 1 is fixedly connected to a connecting pipe 2, the outside of the connecting pipe 2 is fixedly connected to a processing box 4, one side of the processing box 4 is fixedly connected to an air outlet pipe 5, the inside of the air intake pipe 1 is provided with a first activated carbon plate 8 and a connecting ring block 6, one side of the air intake pipe 1 is hinged with a hinge door panel 14 through a hinge, the inside of the air intake pipe 1 is provided with a cleaning mechanism 7, and one side of the air intake pipe 1 is provided with a processing mechanism 9.

[0028] The processing mechanism 9 includes a cooling pipe 91 arranged on the outside of the connecting pipe 2, a water tank 93 is fixedly connected to one side of the air intake pipe 1, both ends of the cooling pipe 91 pass through the water tank 93, a water pump 92 is provided on the outside of the cooling pipe 91, one end of the connecting pipe 2 is fixedly connected to a fixed pipe 94, the fixed pipe 94 is arranged on the inside of the processing box 4, a storage box 95 is provided on the inside of the processing box 4, and one end of the fixed pipe 94 is arranged on the inside of the storage box 95.

[0029] The cleaning mechanism 7 includes a rotating rod 71 rotatably connected to the inner side of the connecting ring block 6, a fan blade 72 is fixedly connected to the outer side of the rotating rod 71, one end of the rotating rod 71 is fixedly connected to a connecting plate 73, a movable ring block 74 is provided on one side of the connecting plate 73, a movable plate 75 is slidably connected to the inner side of the intake pipe 1, and the movable ring block 74 is slidably connected to the inner side of the movable plate 75, a cleaning brush 76 is provided on one side of the movable plate 75, and the cleaning brush 76 is provided on one side of the first activated carbon plate 8.

[0030] Specifically, the gas generated during the production of aluminum rods will enter the inner side of the connecting pipe 2 and the processing box 4 through the air inlet pipe 1, and will eventually be discharged from the inner side of the air outlet pipe 5. The first activated carbon plate 8 can filter the gas to a certain extent, thereby partially filtering out some dust and harmful gases in the exhaust gas. At the same time, the provision of the hinged door panel 14 can facilitate the staff to clean the dust accumulated inside the air inlet pipe 1. When the hinged door panel 14 does not need to be opened on a daily basis, a rubber sealing strip can be used to enhance the sealing effect, thereby reducing the leakage of exhaust gas.

[0031] In addition, the interior of the water tank 93 can store the water source needed for use, and the operation of the water pump 92 can pump the water source inside the water tank 93 into the inner side of the cooling pipe 91, so that the water source can circulate inside the cooling pipe 91, and the circulation of the water source inside the cooling pipe 91 can effectively cool the exhaust gas flowing inside the connecting pipe 2. The cooled exhaust gas will enter the interior of the storage box 95 through the fixed pipe 94, and the interior of the storage box 95 is used to store the sodium hydroxide solution needed for use. When the fluorine-containing exhaust gas enters the interior of the storage box 95 containing the sodium hydroxide solution, the fluorine exhaust gas will combine with the sodium hydroxide solution, thereby purifying the fluorine exhaust gas. At the same time, cooling the fluorine exhaust gas helps to reduce the activity of fluoride in the exhaust gas. At high temperature, the movement speed of fluoride molecules is accelerated, which may lead to an increase in its reaction speed with the sodium hydroxide solution, but it may also increase the fugitive nature of the exhaust gas, so that some fluoride fails to fully contact and react with the sodium hydroxide solution. By lowering the temperature, the movement of fluoride molecules can be slowed down, making them easier to be captured and reacted by the sodium hydroxide solution;

[0032] In addition, the rotating rod 71 can be rotated by the effect of air flow, and when rotating, it drives the fan blades 72 and the connecting plate 73 to rotate together. The rotation of the connecting plate 73 can effectively drive the moving plate 75 to move back and forth on the inner side of the air intake pipe 1 through the moving ring block 74, so that part of the dust adhering to the first activated carbon plate 8 can be cleaned by the cleaning brush 76, so that it falls and accumulates on the inner side of the air intake pipe 1, which is convenient for the staff to clean later.

[0033] The lower side of the water tank 93 is fixedly connected to a fixing frame 121, and a fan 122 is provided inside the fixing frame 121. Figure 1-Figure 5 shown.

[0034] A first water outlet pipe 101 is fixedly connected to the inner side of the storage box 95 . One end of the first water outlet pipe 101 passes through the processing box 4 . A first valve body 102 is provided on the outer side of the first water outlet pipe 101 .

[0035] A second water outlet pipe 111 is fixedly connected to the inner side of the water tank 93 , and a second valve body 112 is provided on the outer side of the second water outlet pipe 111 .

[0036] Specifically, the water tank 93 can be used to install and fix the fan 122 through the fixing frame 121. The fan 122 can increase the flow rate of air around the water tank 93 through its own operation, thereby cooling the water source inside the water tank 93. The provision of the first water outlet pipe 101 allows the sodium hydroxide solution used for reacting fluorine waste gas inside the storage box 95 to be discharged and replaced after a certain period of use. At the same time, the first valve body 102 can control the opening and closing of the first water outlet pipe 101.

[0037] In addition, the functions of the second valve body 112 and the second water outlet pipe 111 are similar to those of the first water outlet pipe 101 and the first valve body 102. The second water outlet pipe 111 can discharge the water source inside the water tank 93, while the second valve body 112 can control the opening and closing of the second water outlet pipe 111.

[0038] The inner side of the storage box 95 is fixedly connected with a hinge door panel 14, which is arranged on the lower side of the fixed tube 94, and the upper side of the hinge door panel 14 is inclined. Figure 1-Figure 5 shown.

[0039] A second activated carbon plate 3 is fixedly connected to the inner side of the processing box 4 , and the second activated carbon plate 3 is arranged on a side of the storage box 95 away from the connecting pipe 2 .

[0040] A fixed plate 132 is fixedly connected to the inner side of the air intake pipe 1 , a sliding groove 131 is opened on one side of the movable plate 75 , the fixed plate 132 is arranged on the inner side of the sliding groove 131 , and the movable plate 75 is slidably connected to the outer side of the fixed plate 132 .

[0041] Specifically, the arrangement of the hinged door panel 14 allows the sodium hydroxide solution in the storage box 95 to flow out more smoothly when the staff needs to discharge or replace the sodium hydroxide solution in the storage box 95, and it is less likely that a large amount of sodium hydroxide solution will remain in the storage box 95.

[0042] In addition, the second activated carbon plate 3 can further filter the air after the sodium hydroxide solution reacts, so that the discharged air can be cleaner and safer;

[0043] In addition, the fixed plate 132 can limit the movable plate 75 through the sliding groove 131, so that the movable plate 75 can be sufficiently stable when moving up and down, and is not prone to deviation or shaking.

[0044] The working principle of the exhaust device for aluminum rod processing proposed in the embodiment of the present invention is as follows:

[0045] When the device is in use, the exhaust gas generated during the production of aluminum rods will first enter the interior of the air intake pipe 1, and then the exhaust gas will pass through the first activated carbon plate 8 in the air intake pipe 1. The first activated carbon plate 8 will preliminarily filter some of the dust and harmful gases in the exhaust gas. The exhaust gas will then enter the treatment box 4 through the connecting pipe 2. When the exhaust gas is on the inner side of the connecting pipe 2, it will be cooled by the circulating water source inside the cooling pipe 91. The water source in the cooling pipe 91 circulates under the action of the water pump 92 to cool the exhaust gas. Cooling helps to reduce the activity of fluoride in the exhaust gas and improve the subsequent reaction efficiency with the sodium hydroxide solution. The cooled exhaust gas enters the storage box 95 through the fixed pipe 94 and reacts with the sodium hydroxide solution in the storage box 95. The fluorine waste gas is absorbed by the sodium hydroxide solution and converted into harmless substances. The exhaust gas treated with the sodium hydroxide solution is then filtered twice through the second activated carbon plate 3 to ensure that the discharged air is cleaner and safer. Finally, the treated exhaust gas is discharged into the atmosphere through the outlet pipe 5.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An exhaust device for aluminum rod processing, comprising an air inlet pipe (1), characterized in that: One side of the air intake pipe (1) is fixedly connected to a connecting pipe (2), the outer side of the connecting pipe (2) is fixedly connected to a processing box (4), one side of the processing box (4) is fixedly connected to an air outlet pipe (5), the inner side of the air intake pipe (1) is provided with a first activated carbon plate (8) and a connecting ring block (6), one side of the air intake pipe (1) is movably hinged to a hinge door panel (14) through a hinge, the inner side of the air intake pipe (1) is provided with a cleaning mechanism (7), and one side of the air intake pipe (1) is provided with a processing mechanism (9); The processing mechanism (9) includes a cooling pipe (91) arranged on the outside of the connecting pipe (2), a water tank (93) is fixedly connected to one side of the air intake pipe (1), both ends of the cooling pipe (91) pass through the water tank (93), a water pump (92) is arranged on the outside of the cooling pipe (91), one end of the connecting pipe (2) is fixedly connected to a fixed pipe (94), the fixed pipe (94) is arranged on the inside of the processing box (4), a storage box (95) is arranged on the inside of the processing box (4), and one end of the fixed pipe (94) is arranged on the inside of the storage box (95).

2. The exhaust device for aluminum rod processing according to claim 1, characterized in that: The cleaning mechanism (7) comprises a rotating rod (71) rotatably connected to the inner side of the connecting ring block (6), a fan blade (72) is fixedly connected to the outer side of the rotating rod (71), one end of the rotating rod (71) is fixedly connected to a connecting plate (73), a movable ring block (74) is provided on one side of the connecting plate (73), a movable plate (75) is slidably connected to the inner side of the air intake pipe (1), and the movable ring block (74) is slidably connected to the inner side of the movable plate (75), a cleaning brush (76) is provided on one side of the movable plate (75), and the cleaning brush (76) is provided on one side of the first activated carbon plate (8).

3. The exhaust device for aluminum rod processing according to claim 2, characterized in that: A fixing frame (121) is fixedly connected to the lower side of the water tank (93), and a fan (122) is provided on the inner side of the fixing frame (121).

4. The exhaust device for aluminum rod processing according to claim 3, characterized in that: A first water outlet pipe (101) is fixedly connected to the inner side of the storage box (95), one end of the first water outlet pipe (101) passes through the processing box (4), and a first valve body (102) is provided on the outer side of the first water outlet pipe (101).

5. The exhaust device for aluminum rod processing according to claim 4, characterized in that: A second water outlet pipe (111) is fixedly connected to the inner side of the water tank (93), and a second valve body (112) is provided on the outer side of the second water outlet pipe (111).

6. The exhaust device for aluminum rod processing according to claim 3, characterized in that: The inner side of the storage box (95) is fixedly connected with a hinge door panel (14), the hinge door panel (14) is arranged on the lower side of the fixed tube (94), and the upper side of the hinge door panel (14) is arranged in an inclined manner.

7. The exhaust device for aluminum rod processing according to claim 5, characterized in that: A second activated carbon plate (3) is fixedly connected to the inner side of the processing box (4), and the second activated carbon plate (3) is arranged on a side of the storage box (95) away from the connecting pipe (2).

8. The exhaust device for aluminum rod processing according to claim 6, characterized in that: A fixed plate (132) is fixedly connected to the inner side of the air intake pipe (1), a sliding groove (131) is opened on one side of the movable plate (75), the fixed plate (132) is arranged on the inner side of the sliding groove (131), and the movable plate (75) is slidably connected to the outer side of the fixed plate (132).

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