A waste gas treatment device for tungsten oxide reduction treatment

Abstract

The present invention discloses a waste gas treatment device for tungsten oxide reduction treatment, comprising: a support member, on which is provided a transverse cavity, an air inlet pipe, an air outlet pipe, two vertical cavities, and two linear cavities, the transverse cavity being respectively connected to the air inlet pipe, the air outlet pipe, the two vertical cavities, and the two linear cavities, and the vertical cavities being connected to the linear cavities; a filter device for filtering powder in the waste gas; two adsorption devices, comprising a slide, a pull rope, and a weight block, the pull rope connecting the slide and the weight block, the slide being arranged in the vertical cavity, the weight block being arranged in the linear cavity, the slide being provided with a placement cavity, a through hole, and a slot, grid holes being provided on both side walls of the placement cavity, and a desiccant being arranged in the placement cavity; two insertion rods being slidably provided on the support member; a drive mechanism being linked to the two slides for driving the two insertion rods to move back and forth to separate from or engage with the slots; and two air drying devices. In the present invention, the device can filter powder in the waste gas while also absorbing moisture in the waste gas, and the desiccant can be used for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of oxide reduction, in particular to a waste gas treatment device for tungsten oxide reduction treatment. Background Art

[0002] Tungsten possesses excellent physical properties such as a high melting point, high density, high thermal conductivity, high hardness, and a low coefficient of thermal expansion. It also possesses excellent chemical properties, including corrosion resistance, making it a key raw material for the production of numerous important functional and structural materials. Modern tungsten powder production processes typically use dry hydrogen to reduce tungsten oxide to tungsten powder at high temperatures. This reduction process typically produces excess hydrogen, generating waste gas. This waste gas contains water vapor generated by the redox reaction, as well as tungsten and tungsten oxide powders mixed with the gas flow. Existing waste gas treatment equipment is inconvenient to separate the water from the tungsten powder and tungsten oxide powder, making it impossible to recycle the tungsten, tungsten oxide, and hydrogen. Summary of the Invention

[0003] The object of the present invention is to solve the above technical problems and to provide a waste gas treatment device for tungsten oxide reduction treatment.

[0004] The technical solution of the present invention is a waste gas treatment device for tungsten oxide reduction treatment, comprising:

[0005] A support member is provided with a transverse cavity, an air inlet pipe, an air outlet pipe, two vertical cavities and two linear cavities, wherein the transverse cavity is respectively communicated with the air inlet pipe, the air outlet pipe, the two vertical cavities and the two linear cavities, the vertical cavity is communicated with the linear cavity, and one end of the vertical cavity passes through the wall of the support member;

[0006] Filtering device, used to filter powder in exhaust gas;

[0007] Two adsorption devices, comprising a slide, a pull rope and a weight block, wherein the pull rope connects the slide and the weight block, the slide is disposed in the vertical cavity, the weight block is disposed in the line cavity, the slide is provided with a placement cavity, a through hole and a slot, grid holes are provided on both side walls of the placement cavity, and a desiccant is disposed in the placement cavity;

[0008] two insertion rods slidably disposed on the support member;

[0009] A driving mechanism, linked with the two slides, is used to drive the two insertion rods to move back and forth and separate from or engage with the slots;

[0010] Two air drying devices are used to dry the desiccant in the slide after it moves downward.

[0011] Preferably, the filtering device includes a filter screen, a cleaning piece, a rotating rod and a driving device, the cleaning piece is provided with bristles, the filter screen and the cleaning piece are both arranged in the air inlet pipe, one end of the rotating rod is rotatably connected to the support piece, and the other end is connected to the filter screen, the driving device is arranged in the transverse cavity and linked to the driving mechanism, and when the driving mechanism is actuated, it drives the driving device to actuate, and then drives the rotating rod to rotate forward and reverse.

[0012] Preferably, the driving device includes a push rod, a first spring, a gear, a first magnet and two support plates, the support plates are arranged in the transverse cavity, the push rod is slidably arranged on the two support plates, the push rod is provided with a rack, the gear is arranged on the rotating rod, the first magnet is arranged on the push rod, and the first spring is arranged between the push rod and the transverse cavity wall.

[0013] Preferably, the driving mechanism includes two second magnets, a third magnet, a fourth magnet and several second springs, the second magnets are arranged on the slide, the third magnet and the fourth magnet are respectively arranged at one end of the insertion rod, and several second springs are respectively arranged between the third magnet and the fourth magnet and the support member.

[0014] Preferably, the air-drying device includes a vertical plate and a plurality of air-drying pipes, wherein the air-drying pipes are arranged on the vertical plate, and one end of the air-drying pipes is connected to an external air supply device.

[0015] Preferably, covers are detachably provided on both sides of the slide.

[0016] The beneficial effects of the present invention are as follows: the present invention can filter powder in the waste gas and absorb moisture in the waste gas at the same time, and the desiccant can be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the overall structure of a preferred embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 is a schematic diagram of a slide in a preferred embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection between the air intake pipe and the cleaning member in a preferred embodiment of the present invention.

[0021] Figure numerals: support member 10, horizontal cavity 101, air inlet pipe 102, air outlet pipe 103, vertical cavity 104, line cavity 105, slide plate 2, pull rope 3, weight block 4, placement cavity 201, through hole 202, slot 203, cover plate 204, insertion rod 5, filter screen 6, cleaning member 7, rotating rod 8, push rod 9, first spring 11, gear 12, first magnet 13, support plate 14, second magnet 15, third magnet 16, fourth magnet 17, second spring 18, vertical plate 19, air drying pipe 20. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 are within the scope of protection of the present invention.

[0023] Reference Figures 1 to 4 , a waste gas treatment device for tungsten oxide reduction treatment, comprising:

[0024] The support member 10 is provided with a transverse cavity 101, an air inlet pipe 102, an air outlet pipe 103, two vertical cavities 104 and two linear cavities 105. The transverse cavity 101 is respectively connected with the air inlet pipe 102, the air outlet pipe 103, the two vertical cavities 104 and the two linear cavities 105. The vertical cavity 104 is connected with the linear cavity 105. One end of the vertical cavity 104 passes through the wall of the support member 10.

[0025] Filtering device, used to filter powder in exhaust gas;

[0026] Two adsorption devices, which include a slide 2, a pull rope 3 and a weight block 4. The pull rope 3 connects the slide 2 and the weight block 4. The slide 2 is arranged in the vertical cavity 104, and the weight block 4 is arranged in the linear cavity 105. The slide 2 is provided with a placement cavity 201, a through hole 202 and a slot 203. The walls of the placement cavity 201 are provided with grid holes. A desiccant is provided in the placement cavity 201.

[0027] Two insertion rods 5 are slidably arranged on the support member 10;

[0028] A driving mechanism, linked with the two slides 2, is used to drive the two insertion rods 5 to move back and forth to separate from or engage with the slots 203;

[0029] Two air-drying devices are used to air-dry the desiccant in the downwardly moving slide 2. In the present invention, the original position of the upper insertion rod 5 cooperates with the slot 203 on the second slide 2. The original positions of the two slides 2 are that the first one is in the vertical cavity 104 and the second one extends out of the vertical cavity 104. The exhaust gas flows from the air inlet pipe 102 to the horizontal cavity 101 and filters out the powder through the filter device. When the exhaust gas passes through the first slide 2, the moisture in the exhaust gas is absorbed by the desiccant in the cavity 201. The exhaust gas flows through the through hole 202 on the second slide 2 and flows through the air outlet pipe 103 to the exhaust gas collection bottle or other collector. When the weight of the desiccant in the cavity 201 on the first slide 2 after absorbing water is greater than the first weight block 4, the first slide 2 moves downward, the driving mechanism is activated, and the upper insertion rod 5 moves to the right and disengages from the slot 203 on the second slide 2. The second slide 2 is moved upward by the second weight block 4, and the drive mechanism is activated, driving the lower plug rod 5 to move rightward to cooperate with the slot 203 on the first slide 2, so that the first slide 2 is fixed. The air drying device dries the desiccant. When the exhaust gas passes through the second slide 2, the desiccant in the placement chamber 201 absorbs the moisture in the exhaust gas and flows into the exhaust gas collector through the outlet pipe 103. When the weight of the desiccant in the placement chamber 201 on the second slide 2 after absorbing water is greater than the second weight block 4, the second slide 2 moves downward, the drive mechanism is activated, and the first slide 2 moves upward. The second slide 2 is fixed by the upper plug rod 5. The above operation is repeated, and the desiccant in the two slides 2 is used alternately to absorb the moisture in the exhaust gas. Specifically, the desiccant is silica gel; in order to ensure that the moisture in the exhaust gas is completely adsorbed, multiple adsorption devices, drive mechanisms and air drying devices can be set.

[0030] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0031] In this embodiment, the filter device includes a filter screen 6, a cleaning member 7, a rotating rod 8, and a driving device. The cleaning member 7 is provided with bristles. The filter screen 6 and the cleaning member 7 are both arranged in the air inlet pipe 102. One end of the rotating rod 8 is rotatably connected to the support member 10, and the other end is connected to the filter screen 6. The driving device is arranged in the transverse cavity 101 and is linked to the driving mechanism. When the driving mechanism is actuated, the driving device is driven to actuate, thereby driving the rotating rod 8 to rotate forward and reverse. Specifically, the rotating rod 8 is a T-shaped rod. When the driving mechanism is actuated, the driving device is driven to actuate, causing the rotating rod 8 to rotate forward and reverse, causing the bristles on the cleaning member 7 to clean different positions on the bottom of the filter screen 6, preventing the filter screen 6 from being blocked. At the same time, the powder falls from the air inlet pipe 102 into the reduction device.

[0032] In this embodiment, the driving device includes a push rod 9, a first spring 11, a gear 12, a first magnet 13 and two support plates 14. The support plate 14 is arranged in the transverse cavity 101, and the push rod 9 is slidably arranged on the two support plates 14. The push rod 9 is provided with a rack, the gear 12 is arranged on the rotating rod 8, the first magnet 13 is arranged on the push rod 9, and the first spring 11 is arranged between the push rod 9 and the wall of the transverse cavity 101. After the first slide plate 2 moves downward, the second magnet 15 thereon gives a repulsive force to the first magnet 13, and the push rod 9 moves to the right on the two support plates 14, driving the gear 12 to rotate and squeeze the first spring 11, and the rotating rod 8 rotates, so that the contact position between the bottom of the filter screen 6 and the cleaning member 7 changes, and the bottom of the filter screen 6 is cleaned. When the first slide plate 2 moves upward, the second magnet 15 thereon does not give a repulsive force to the first magnet 13, and the first spring 11 gives a reaction force to the push rod 9 to reset it, and the rotating rod 8 rotates in the opposite direction to return to its original position.

[0033] In this embodiment, the driving mechanism includes two second magnets 15, a third magnet 16, a fourth magnet 17 and a plurality of second springs 18. The second magnet 15 is arranged on the skateboard 2, and the third magnet 16 and the fourth magnet 17 are respectively arranged at one end of the insertion rod 5. A plurality of second springs 18 are respectively arranged between the third magnet 16 and the fourth magnet 17 and the support member 10. When the first skateboard 2 moves downward, the second magnet 15 on it gives an attraction to the fourth magnet 17 to make the upper insertion rod 5 move to the right and disengage from the slot 203 on the second skateboard 2, and the plurality of second springs 18 are stretched. The second skateboard 2 moves upward under the action of the second weight block 4, and the second magnet 15 on the second skateboard 2 gives a repulsive force to the third magnet 16 to make the lower insertion rod 5 move to the right and separate from the first The slots 203 on each skateboard 2 cooperate with and squeeze several second springs 18, so that the lower insertion rod 5 fixes the first skateboard 2. When the second skateboard 2 moves downward, the second magnet 15 does not give repulsive force to the third magnet 16. Several second springs 18 give reaction force to the upper insertion rod 5 to reset it. The lower insertion rod 5 does not fix the first skateboard 2. The first skateboard 2 moves upward. Several second springs 18 give reaction force to the upper insertion rod 5 to make it cooperate with the slots 203 on the second skateboard 2 to fix it. In this way, when one skateboard 2 moves downward, the other skateboard 2 can move upward, ensuring the drying time of the desiccant, and preventing the skateboard 2 from moving upward under the action of the weight block 4 during drying, resulting in insufficient drying time and the desiccant being used before it is dried. Specifically, four guide plates are provided on the support member 10, two of which are arranged in the transverse cavity 101, and the other two guide plates are arranged on the outer wall of the support member 10, supporting the insertion rod 5 and the insertion rod 5 can slide on the guide plates, and several second springs 18 are provided between the third magnet 16 and the guide plate, and several second springs 18 are provided between the fourth magnet 17 and the guide plate.

[0034] In this embodiment, the air drying device includes a vertical plate 19 and a plurality of air drying pipes 20. The air drying pipes 20 are mounted on the vertical plate 19 and connected to an external air supply device at one end. Specifically, one end of the air drying pipe 20 is trumpet-shaped to increase the air outlet area. The vertical plate 19 is mounted on the support member 10.

[0035] In this embodiment, cover plates 204 are detachably provided on both sides of the slide plate 2. The cover plates 204 are connected to the slide plate 2 by bolts, so as to facilitate the replacement of the desiccant.

[0036] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for tungsten oxide reduction treatment, characterized in that: include: A support member (10) is provided with a transverse cavity (101), an air inlet pipe (102), an air outlet pipe (103), two vertical cavities (104), and two linear cavities (105); the transverse cavity (101) is respectively in communication with the air inlet pipe (102), the air outlet pipe (103), the two vertical cavities (104), and the two linear cavities (105); the vertical cavity (104) is in communication with the linear cavities (105); and one end of the vertical cavity (104) passes through the wall of the support member (10); A filter device for filtering powder in exhaust gas, the filter device comprising a filter screen (6), a cleaning member (7), a rotating rod (8) and a driving device, the cleaning member (7) being provided with bristles, the filter screen (6) and the cleaning member (7) being both arranged in the air inlet pipe (102), one end of the rotating rod (8) being rotatably connected to the support member (10), and the other end being connected to the filter screen (6), the driving device being arranged in the transverse cavity (101) and linked to the driving mechanism, and when the driving mechanism is actuated, the driving device is actuated, thereby actuating the rotating rod (8) ) rotates forward and reverse, the driving device comprises a push rod (9), a first spring (11), a gear (12), a first magnet (13) and two support plates (14), the support plates (14) are arranged in the transverse cavity (101), the push rod (9) is slidably arranged on the two support plates (14), the push rod (9) is provided with a rack, the gear (12) is arranged on the rotating rod (8), the first magnet (13) is arranged on the push rod (9), and the first spring (11) is arranged between the push rod (9) and the wall of the transverse cavity (101); Two adsorption devices, comprising a slide plate (2), a pull rope (3) and a weight block (4), wherein the pull rope (3) connects the slide plate (2) and the weight block (4), the slide plate (2) is arranged in the vertical cavity (104), and the weight block (4) is arranged in the line cavity (105), the slide plate (2) is provided with a placement cavity (201), a through hole (202) and a slot (203), grid holes are provided on both side walls of the placement cavity (201), and a desiccant is provided in the placement cavity (201); Two insertion rods (5) slidably arranged on the support member (10); A driving mechanism is linked with the two slides (2) to drive the two insertion rods (5) to move back and forth to separate from or cooperate with the slots (203), the driving mechanism comprising two second magnets (15), a third magnet (16), a fourth magnet (17) and a plurality of second springs (18), the two second magnets (15) are each arranged on one of the slides (2), the third magnet (16) and the fourth magnet (17) are each arranged at one end of one of the insertion rods (5), the third magnet (16) and the support member (10) and the fourth magnet (17) are respectively arranged between the third magnet (16) and the support member (10) and the fourth magnet (17) and the second springs (18). A plurality of second springs (18) are provided between the support members (10). When the first slide plate (2) moves downward, the second magnet (15) thereon attracts the fourth magnet (17) so that the above-mentioned plug rod (5) moves to the right and disengages from the slot (203) on the second slide plate (2). The plurality of second springs (18) between the fourth magnet (17) and the support member (10) are stretched, and the second slide plate (2) moves upward under the action of the second weight block (4). The second magnet (15) on the second slide plate (2) is pulled upward. 5) giving the third magnet (16) a repulsive force so that the lower insertion rod (5) moves rightward to cooperate with the slot (203) on the first slide (2) and squeeze the third magnet (16) and the plurality of second springs (18) between the support (10), so that the lower insertion rod (5) fixes the first slide (2). When the second slide (2) moves downward, the second magnet (15) on the second slide (2) does not give the third magnet (16) a repulsive force. The plurality of second springs (18) between the third magnet (16) and the support (10) are pressed. The second springs (18) exert a reaction force on the third magnet (16) to drive the lower insertion rod (5) to move to the left, so that it is reset. The lower insertion rod (5) is not fixed to the first slide plate (2). The first slide plate (2) moves upward under the action of the first weight block (4). The second springs (18) between the fourth magnet (17) and the support member (10) exert a reaction force on the fourth magnet (17) to make the upper insertion rod (5) move to the left and cooperate with the slot (203) on the second slide plate (2) to fix it. Two air-drying devices are used to air-dry the desiccant in the slide plate (2) after the slide plate (2) moves downward.

2. The exhaust gas treatment device for tungsten oxide reduction treatment according to claim 1, characterized in that: The air drying device comprises a vertical plate (19) and a plurality of air drying pipes (20). The air drying pipes (20) are arranged on the vertical plate (19), and one end of the air drying pipes (20) is connected to an external air supply device.

3. The exhaust gas treatment device for tungsten oxide reduction treatment according to claim 1, characterized in that: Cover plates (204) are detachably provided on both sides of the slide plate (2).

Images