Styrene waste gas treatment device and method

Abstract

The invention relates to the technical field of gas purification, and particularly discloses a styrene waste gas treatment device and method.The styrene waste gas treatment device comprises a purification assembly, the purification assembly comprises a first covering assembly, a second covering assembly and a frame body, and a plurality of mounting holes are formed in one end face of the frame body around the center axis of the frame body at equal angles; a plurality of mounting holes are formed in the frame body, a purification filler is fixed in each mounting hole, the frame body is located between the first covering assembly and the second covering assembly, the first covering assembly comprises a plurality of second covers which are fixed together, a third cover is fixed on one second cover, the second covering assembly comprises a plurality of sixth covers which are fixed together, and the sixth covers are fixed on the third cover. According to the styrene waste gas treatment device, styrene waste gas flows along a zigzag gas flowing path, and the styrene waste gas firstly flows through the purification filler which adsorbs most styrene and then flows through the purification filler which adsorbs less styrene, so that the adsorption effect on the styrene waste gas is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas purification, and in particular to a styrene waste gas treatment device and method. Background Art

[0002] Styrene is an important chemical raw material. A large amount of volatile waste gas is released during the production and use process. Styrene waste gas has a pungent odor, is toxic and potentially carcinogenic, and poses a great threat to the environment and human health.

[0003] Activated carbon adsorption is often used in industry to treat styrene waste gas. It is simple to operate, low cost, and has good short-term purification effect. However, as styrene accumulates in the pores of activated carbon, the purification efficiency of activated carbon shows a nonlinear downward trend, and the purification effect is significantly reduced. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a styrene waste gas treatment device and method. The styrene waste gas treatment device allows the styrene waste gas to flow along a tortuous gas flow path. The styrene waste gas first flows through the purification filler that adsorbs the most styrene, and then flows through the purification filler that adsorbs the least styrene, thereby improving the adsorption effect on the styrene waste gas. The styrene waste gas treatment method is simple to operate.

[0005] The technical solution adopted by the present invention to solve the technical problem includes: On the one hand, a styrene waste gas treatment device is provided, including a purification component, wherein the purification component includes a first cover component, a second cover component and a circular frame, one end face of the frame is provided with a plurality of mounting holes at equal angles around the central axis of the frame, a purification filler is fixed in each mounting hole, and the frame is located between the first cover component and the second cover component.

[0006] The first cover assembly includes a plurality of second cover shells fixed together, one of which is fixed with a third cover shell, the second cover assembly includes a plurality of sixth cover shells fixed together, one of which is fixed with a fifth cover shell, the number of the second cover shells is the same as the number of the sixth cover shells, the inner cavity of the third cover shell is connected to one end of the second air inlet pipe, and the inner cavity of the fifth cover shell is connected to one end of the second air outlet pipe.

[0007] Among them, the opening of the second cover shell completely covers two adjacent mounting holes, the opening of the sixth cover shell completely covers two adjacent mounting holes, the opening of the third cover shell completely covers one mounting hole, and the opening of the fifth cover shell completely covers one mounting hole. The first cover assembly, the second cover assembly, and the mounting holes on the frame form a tortuous gas flow path.

[0008] The frame is rotated at a set angle at set intervals so that the mounting holes covered by the third cover are separated from the first and second cover components. The set angle is the interval angle between two adjacent mounting holes on the frame.

[0009] As a preferred technical solution of the present invention, it also includes a first cover shell and a fourth cover shell, the frame is located between the first cover shell and the fourth cover shell, the opening of the first cover shell and the opening of the fourth cover shell respectively completely cover the two openings of one of the mounting holes, the inner cavity of the first cover shell is connected to one end of the first air inlet pipe, and the inner cavity of the fourth cover shell is connected to one end of the first air outlet pipe.

[0010] As a preferred technical solution of the present invention, an opening is provided on the purification filler, and a blocking release component is provided in the opening.

[0011] When the air pressure difference at both ends of the blocking release component exceeds a set value, the blocking release component changes from a gas blocking state to a gas releasing state.

[0012] As a preferred technical solution of the present invention, the blocking release assembly includes a tube body fixed in the opening, an annular protrusion extending inward from the middle of the inner wall of the tube body, two fixed blocks are fixed to the inner wall of the tube body, a guide rod is fixed between the two fixed blocks, a sliding slider is installed on the guide rod, a first spring and a second spring are provided on the guide rod, the slider is located between the first spring and the second spring, and the slider and the annular protrusion are in sealed sliding contact.

[0013] As a preferred technical solution of the present invention, the slider is spherical and is made of silicone rubber or fluororubber.

[0014] As a preferred technical solution of the present invention, it also includes a driving device and a shell, the purification component is located in the shell, the frame is rotatably installed on the inner wall of the shell, the first cover component and the second cover component are both fixed on the inner wall of the shell, the driving device is installed on the shell, and the output shaft of the driving device and the frame are coaxially fixedly connected.

[0015] As a preferred technical solution of the present invention, the driving device is a stepping motor or a servo motor.

[0016] As a preferred technical solution of the present invention, the purification filler is activated carbon or zeolite.

[0017] On the other hand, a method for treating styrene waste gas is also provided, using any of the above-mentioned styrene waste gas treatment devices, comprising the following steps: The frame is located between the first cover assembly and the second cover assembly, and the first cover assembly and the second cover assembly are both fitted on the frame.

[0018] The styrene waste gas enters the third housing through the second air inlet pipe.

[0019] The frame is rotated at a set angle at set intervals to separate the mounting holes covered by the third cover from the first and second cover components. The set angle is the interval angle between two adjacent mounting holes on the frame.

[0020] As a preferred technical solution of the present invention, the following steps are also included: The heating gas is introduced into the first housing through the first air inlet pipe.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. In the styrene waste gas treatment device of the example of the present invention, the styrene waste gas forms a tortuous gas flow path under the guidance of the first cover assembly, the second cover assembly and the mounting hole, and the frame is rotated by a set angle at a set interval to make the mounting hole of the third cover assembly detach from the covers of the first cover assembly and the second cover assembly: on the one hand, the styrene waste gas first flows through the purification filler that adsorbs the most styrene, and then flows through the purification filler that adsorbs the least styrene, thereby improving the adsorption effect of the styrene waste gas treatment device on the styrene waste gas; on the other hand, every time the frame rotates by a set angle, the flow direction of the styrene waste gas in the purification filler changes, and the styrene waste gas with changed flow direction blows away the dust particles on the end face of the purification filler, thereby reducing the maintenance cost of the styrene waste gas treatment device; on the other hand, the purified gas of the purification filler from which styrene has been desorbed after heating is cooled, thereby ensuring the treatment effect of the purification filler on the styrene waste gas and reducing the energy consumption of the styrene waste gas treatment device.

[0022] 2. In the styrene waste gas treatment device of the example of the present invention, when there are too many dust particles on one end face of the purification filler and the air pressure difference at both ends of the blocking and releasing component exceeds the set value, the blocking and releasing component changes from a gas blocking state to a gas releasing state, and the styrene waste gas is adsorbed and processed by the subsequent purification filler, thereby improving the reliability of the styrene waste gas treatment device.

[0023] 3. The styrene waste gas treatment method of the present invention is simple to operate and improves the adsorption effect of styrene waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure; Figure 3 It is a schematic diagram of the purification component structure of the present invention; Figure 4 It is a perspective schematic diagram of the explosion structure of the purification component of the present invention; Figure 5 It is a schematic structural diagram of the explosion structure of the purification component of the present invention from another perspective; Figure 6 It is a schematic diagram of the structure of the blocking release component of the present invention.

[0025] In the figure: 1 first air inlet pipe, 2 second air inlet pipe, 3 shell, 4 first air outlet pipe, 5 second air outlet pipe, 6 driving device, 7 purification component, 71 first cover shell, 72 second cover shell, 73 purification filler, 74 frame, 75 third cover shell, 76 fourth cover shell, 77 fifth cover shell, 78 sixth cover shell, 8 blocking release component, 81 first spring, 82 guide rod, 83 slider, 84 annular protrusion, 85 second spring, 86 tube body. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: See also Figure 1-Figure 5 The present embodiment discloses a styrene waste gas treatment device, including a purification component 7, the purification component 7 includes a first cover component, a second cover component and a circular frame 74, one end surface of the frame 74 is provided with a plurality of mounting holes at equal angles around the central axis of the frame 74, each mounting hole is fixed with a purification filler 73, and the frame 74 is located between the first cover component and the second cover component.

[0028] The first cover assembly includes a plurality of second cover shells 72 fixed together, one of the second cover shells 72 having a third cover shell 75 fixed thereto, the second cover assembly includes a plurality of sixth cover shells 78 fixed thereto, one of the sixth cover shells 78 having a fifth cover shell 77 fixed thereto, the number of the second cover shells 72 is the same as the number of the sixth cover shells 78, the inner cavity of the third cover shell 75 is connected to one end of the second air inlet pipe 2, and the inner cavity of the fifth cover shell 77 is connected to one end of the second air outlet pipe 5.

[0029] The opening of the second cover shell 72 completely covers two adjacent mounting holes, the opening of the sixth cover shell 78 completely covers two adjacent mounting holes, the opening of the third cover shell 75 completely covers one mounting hole, and the opening of the fifth cover shell 77 completely covers one mounting hole. The mounting holes covered by the first cover assembly and the mounting holes covered by the second cover assembly are the same, and the mounting holes covered by the third cover shell 75 and the mounting holes covered by the fifth cover shell 77 are different. The mounting holes on the first cover assembly, the second cover assembly and the frame 74 form a tortuous gas flow path.

[0030] Furthermore, the purification filler 73 is activated carbon or zeolite.

[0031] The working process and principle of this embodiment are: The staff allows the styrene waste gas to enter the third cover shell 75 through the second air inlet pipe 2. The styrene waste gas forms a tortuous gas flow path under the guidance of the first cover assembly, the second cover assembly and the mounting hole. The gas purified by adsorption by the purification filler 73 is discharged through the fifth cover shell 77 and the second air outlet pipe 5.

[0032] The staff rotates the frame 74 at a set angle at set intervals to separate the mounting holes covered by the third cover shell 75 from the first and second cover components. The set angle is the interval angle between two adjacent mounting holes on the frame 74 .

[0033] After the frame 74 rotates to a set angle, one of the purification fillers 73 that does not absorb styrene waste gas is covered by the first covering assembly and the second covering assembly, and the purification filler 73 that absorbs the most styrene is separated from the first covering assembly and the second covering assembly.

[0034] The styrene waste gas first flows through the purification filler 73 that adsorbs the most styrene, and then flows through the purification filler 73 that adsorbs the least styrene, thereby improving the adsorption effect of the styrene waste gas treatment device on the styrene waste gas.

[0035] Styrene waste gas contains dust particles. Every time the frame 74 rotates a set angle, the flow direction of the styrene waste gas in the purification filler 73 changes. The styrene waste gas with changed flow direction blows away the dust particles on the end surface of the purification filler 73, reducing the maintenance cost of the styrene waste gas treatment device.

[0036] Embodiment 2: like Figure 2-Figure 5 As shown, the present embodiment discloses a styrene waste gas treatment device, and its structure is substantially the same as that of the first embodiment, except that the present embodiment further includes a first cover shell 71 and a fourth cover shell 76, and a frame 74 is located between the first cover shell 71 and the fourth cover shell 76, and an opening of the first cover shell 71 and an opening of the fourth cover shell 76 respectively completely cover two openings of one of the mounting holes, an inner cavity of the first cover shell 71 is connected to one end of the first air inlet pipe 1, and an inner cavity of the fourth cover shell 76 is connected to one end of the first air outlet pipe 4.

[0037] The working process and principle of this embodiment are: The staff introduces heating gas into the first cover shell 71 through the first air inlet pipe 1. The heating gas heats the purification filler 73 that adsorbs styrene, so that the styrene in the purification filler 73 is separated. The heating gas is discharged through the fourth cover shell 76 and the first air outlet pipe 4, so that the styrene waste gas treatment device can continuously treat the styrene waste gas.

[0038] Furthermore, the purified gas of the purification filler 73 which has been heated to desorb styrene is cooled, thereby ensuring the treatment effect of the purification filler 73 on the styrene waste gas and reducing the energy consumption of the styrene waste gas treatment device.

[0039] Furthermore, the temperature of the heating gas is 100° C.-200° C., and the heating gas is nitrogen or carbon dioxide.

[0040] Embodiment three: like Figure 3-Figure 6 As shown, this embodiment discloses a styrene waste gas treatment device, and its structure is substantially the same as that of the second embodiment, except that an opening is provided on the purification filler 73 of this embodiment, and a blocking release component 8 is provided in the opening.

[0041] When the air pressure difference at both ends of the blocking release component 8 exceeds a set value, the blocking release component 8 changes from a gas blocking state to a gas releasing state.

[0042] The working process and principle of this embodiment are: When there are too many dust particles on one end of the purification filler 73, the air pressure difference at both ends of the blocking release component 8 exceeds the set value, and the blocking release component 8 changes from a gas blocking state to a gas release state. The styrene waste gas is adsorbed and treated by the subsequent purification filler 73, thereby improving the reliability of the styrene waste gas treatment device.

[0043] Embodiment 4: like Figure 6 As shown, this embodiment discloses a styrene waste gas treatment device, and its structure is substantially the same as that of the third embodiment, except that the blocking release assembly 8 of this embodiment includes a tube body 86 fixed in the opening, an annular protrusion 84 extends inward from the middle of the inner wall of the tube body 86, two fixed blocks are fixed to the inner wall of the tube body 86, a guide rod 82 is fixed between the two fixed blocks, a sliding slider 83 is mounted on the guide rod 82, a first spring 81 and a second spring 85 are provided on the guide rod 82, the slider 83 is located between the first spring 81 and the second spring 85, and the first spring 81 and the second spring 85 keep the slider 83 and the annular protrusion 84 in sealed sliding contact.

[0044] Furthermore, the slider 83 is spherical, and the slider 83 is made of silicone rubber or fluororubber.

[0045] The working process and principle of this embodiment are: When there are too many dust particles on one end surface of the purification filler 73, the air pressure difference at both ends of the slider 83 exceeds the set value, the slider 83 moves in the direction of low air pressure, and the slider 83 and the annular protrusion 84 are out of contact, and the styrene waste gas flows through the tube body 86.

[0046] Embodiment five: like Figure 1 and Figure 2 As shown, this embodiment discloses a styrene waste gas treatment device, and its structure is roughly the same as that of the first embodiment, except that this embodiment also includes a driving device 6 and a shell 3, the purification component 7 is located in the shell 3, the frame 74 is rotatably mounted on the inner wall of the shell 3, the first cover assembly and the second cover assembly are both fixed on the inner wall of the shell 3, the driving device 6 is mounted on the shell 3, the output shaft of the driving device 6 and the frame 74 are coaxially fixedly connected, and the staff controls the driving device 6 to work so that the driving device 6 drives the frame 74 to rotate a set angle.

[0047] Furthermore, the driving device 6 is a stepping motor or a servo motor.

[0048] Embodiment six: like Figure 1-Figure 5 As shown, this embodiment discloses a styrene waste gas treatment method, which is used to operate the styrene waste gas treatment device of any one of the first to fifth embodiments, and comprises the following steps: The frame 74 is located between the first cover assembly and the second cover assembly, and both the first cover assembly and the second cover assembly are fitted on the frame 74 .

[0049] The styrene exhaust gas enters the third casing 75 via the second air intake pipe 2 .

[0050] The frame 74 is rotated by a set angle at an interval setting time, so that the mounting hole covered by the third cover shell 75 is separated from the first covering component and the second covering component. The set angle is the interval angle between two adjacent mounting holes on the frame 74.

[0051] The working process and principle of this embodiment are: The styrene waste gas forms a tortuous gas flow path under the guidance of the first cover assembly, the second cover assembly and the mounting hole. The staff rotates the frame 74 to a set angle at set intervals to separate the mounting hole covered by the third cover shell 75 from the covers of the first cover assembly and the second cover assembly.

[0052] The styrene waste gas treatment method is simple to operate and improves the adsorption effect on the styrene waste gas.

[0053] Embodiment seven: like Figure 2-Figure 5As shown, this embodiment discloses a method for treating styrene waste gas, which is substantially the same as the method of embodiment 6, except that this embodiment further includes the following steps: The heating gas is introduced into the first housing 71 through the first air inlet pipe 1 .

[0054] The working process and principle of this embodiment are: The staff introduces heating gas into the first cover shell 71 through the first air inlet pipe 1, and the heating gas heats the purification filler 73 that adsorbs styrene, so that the styrene in the purification filler 73 is separated. The styrene waste gas treatment device can continuously treat the styrene waste gas.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A styrene waste gas treatment device, characterized in that: The purification assembly (7) comprises a first cover assembly, a second cover assembly and a circular frame (74), one end surface of the frame (74) is provided with a plurality of mounting holes at equal angles around the central axis of the frame (74), a purification filler (73) is fixed in each mounting hole, and the frame (74) is located between the first cover assembly and the second cover assembly; The first cover assembly comprises a plurality of second cover shells (72) fixed together, wherein a third cover shell (75) is fixed to one of the second cover shells (72), the second cover assembly comprises a plurality of sixth cover shells (78) fixed together, wherein a fifth cover shell (77) is fixed to one of the sixth cover shells (78), the number of the second cover shells (72) is the same as the number of the sixth cover shells (78), the inner cavity of the third cover shell (75) is in communication with one end of the second air inlet pipe (2), and the inner cavity of the fifth cover shell (77) is in communication with one end of the second air outlet pipe (5); The opening of the second cover shell (72) completely covers two adjacent mounting holes, the opening of the sixth cover shell (78) completely covers two adjacent mounting holes, the opening of the third cover shell (75) completely covers one mounting hole, and the opening of the fifth cover shell (77) completely covers one mounting hole, and the first cover assembly, the second cover assembly, and the mounting holes on the frame (74) form a tortuous gas flow path; The frame (74) is rotated to a set angle at set intervals so that the mounting holes covered by the third cover shell (75) are separated from the first cover assembly and the second cover assembly, and the set angle is the interval angle between two adjacent mounting holes on the frame (74).

2. The styrene waste gas treatment device according to claim 1, characterized in that: It also includes a first cover shell (71) and a fourth cover shell (76), the frame (74) is located between the first cover shell (71) and the fourth cover shell (76), the opening of the first cover shell (71) and the opening of the fourth cover shell (76) respectively completely cover the two openings of one of the mounting holes, the inner cavity of the first cover shell (71) is connected to one end of the first air inlet pipe (1), and the inner cavity of the fourth cover shell (76) is connected to one end of the first air outlet pipe (4).

3. The styrene waste gas treatment device according to claim 2, characterized in that: The purification filler (73) is provided with an opening, and a blocking release component (8) is provided in the opening; When the air pressure difference between the two ends of the blocking release component (8) exceeds a set value, the blocking release component (8) changes from a gas blocking state to a gas releasing state.

4. The styrene waste gas treatment device according to claim 3, characterized in that: The blocking release assembly (8) comprises a tube body (86) fixed in the opening, an annular protrusion (84) extending inwardly from the middle of the inner wall of the tube body (86), two fixed blocks fixed to the inner wall of the tube body (86), a guide rod (82) fixed between the two fixed blocks, a sliding block (83) mounted on the guide rod (82), a first spring (81) and a second spring (85) provided on the guide rod (82), the slide block (83) located between the first spring (81) and the second spring (85), the slide block (83) and the annular protrusion (84) being in sealing sliding contact.

5. The styrene waste gas treatment device according to claim 4, characterized in that: The slider (83) is spherical, and is made of silicone rubber or fluororubber.

6. The styrene waste gas treatment device according to claim 1, characterized in that: It also includes a driving device (6) and a shell (3), the purification component (7) is located in the shell (3), the frame (74) is rotatably mounted on the inner wall of the shell (3), the first cover component and the second cover component are both fixed on the inner wall of the shell (3), the driving device (6) is mounted on the shell (3), and the output shaft of the driving device (6) and the frame (74) are coaxially fixedly connected.

7. The styrene waste gas treatment device according to claim 6, characterized in that: The driving device (6) is a stepping motor or a servo motor.

8. The styrene waste gas treatment device according to claim 1, characterized in that: The purification filler (73) is activated carbon or zeolite.

9. A method for treating styrene waste gas, characterized in that: The method for operating the styrene waste gas treatment device according to any one of claims 1 to 8 comprises the following steps: The frame (74) is located between the first cover assembly and the second cover assembly, and the first cover assembly and the second cover assembly are both fitted on the frame (74); The styrene waste gas enters the third housing (75) via the second air inlet pipe (2); The frame (74) is rotated to a set angle at set intervals, so that the mounting holes covered by the third cover shell (75) are separated from the first cover assembly and the second cover assembly. The set angle is the interval angle between two adjacent mounting holes on the frame (74).

10. The method for treating styrene waste gas according to claim 9, characterized in that: The following steps are also included: Heating gas is introduced into the first housing (71) through the first air inlet pipe (1).

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