A propane dehydrogenation device tail gas purification treatment equipment and method

Abstract

The invention provides a propane dehydrogenation device tail gas purification treatment device and method, which relate to the technical field of tail gas treatment; the device comprises a purification installation part, on which a rotation switching part is installed; two filter devices are installed on the rotation switching part; the rotation switching part is used to drive the two filter devices to rotate inside the purification installation part; the purification installation part is installed with a sliding limit part; the sliding limit part is attached to the filter device below; it is convenient for staff to check the rust condition of the filter cartridge, and it is possible to prevent the filter cartridge from being rusted and damaged to affect the filtering effect, and at the same time, there is no need to disassemble the filter cartridge, so that a continuous purification effect is guaranteed, and it is more convenient for staff to inspect and observe; it solves the problem that the current propane dehydrogenation device tail gas purification treatment device is not convenient for rust detection of the filter cartridge, and the impurities such as rust are generated to affect the purification effect, and it is also easy to cause the filtering performance of the filter cartridge to be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment, and in particular to a tail gas purification treatment device and method for a propane dehydrogenation device. Background Art

[0002] Propane dehydrogenation is the process of producing propylene monomer by dehydrogenating propane. It is an important way to produce propylene. In the preparation of propane dehydrogenation, heating is required, which will produce a large amount of waste gas. The waste gas from propane dehydrogenation contains a large amount of corrosive impurities. This part of the waste gas needs to be purified by a filter cartridge with a filter element, and a metal filter cartridge is usually used for filtration. The current tail gas purification treatment equipment of propane dehydrogenation devices is widely used due to its advantages such as high-efficiency filtration and purification. However, the current tail gas purification treatment equipment of propane dehydrogenation devices is not convenient for rust detection of the filter cartridge, and impurities such as rust are generated, which affect the purification effect and easily lead to reduced filtration performance of the filter cartridge. At the same time, the filter cartridge is not convenient for insurance and anti-blocking. Waste gas blockage is likely to cause safety hazards. It is also inconvenient to replace the filter cartridge without stopping the machine after detecting the blockage of the filter cartridge. The filter cartridge is not replaced in time, which directly affects the quality of environmental protection emissions. Manual replacement of the filter cartridge by traditional purification equipment is also prone to waste gas leakage. Summary of the invention

[0003] The embodiments of the present invention relate to a propane dehydrogenation device exhaust gas purification treatment device and method. The rust detection component can facilitate staff to check the rust condition of the filter cartridge, and can prevent the filter cartridge from being corroded and damaged and affecting the filtering effect. At the same time, there is no need to disassemble the filter cartridge, thereby ensuring a continuous purification effect and making it more convenient for staff to inspect and observe.

[0004] According to a first aspect of the present invention, there is provided an exhaust gas purification treatment device for a propane dehydrogenation device, which specifically comprises a purification mounting member, on which a rotation switching portion is mounted; two filter devices are mounted on the rotation switching portion; the rotation switching portion is used to drive the two filter devices to rotate inside the purification mounting member; a sliding limit portion is mounted on the purification mounting member; the sliding limit portion is attached to the filter device below; a blockage detection member is mounted on the purification mounting member; the sliding limit portion is sleeved on the blockage detection member; the blockage detection member is used to detect the fluidity of the filter device; two rotating driving members are rotatably mounted on the rotation switching portion; two rust detection members are mounted on the rotation switching member; the two rust detection members are respectively attached to the two rotating driving members; the two rust detection members are respectively used to detect the rust degree of the two filter devices; the purification mounting member comprises: a purification mounting box, a pressure display and a prompt light, on which a pressure display is fixedly mounted; and a prompt light is fixedly mounted on the purification mounting box.

[0005] Furthermore, the blockage detection component includes: a blockage frame, a position adjustment bolt, a sleeve, an anti-accidental touch spring and a micro switch, the blockage frame is fixedly installed on the end of the exhaust connecting pipe by bolts; a position adjustment bolt is threadedly connected to the blockage frame, and a handwheel is provided on the position adjustment bolt; a sleeve is fixedly installed on the end of the position adjustment bolt; a limiting sliding shaft is inserted in the sleeve; an anti-accidental touch spring is sleeved inside the sleeve; a micro switch is fixedly installed inside the sleeve; the micro switch is electrically connected to a warning light; the micro switch is used for blockage detection of the filter cartridge.

[0006] Furthermore, the sliding limiting part includes: a sliding shaft frame and a limiting sliding shaft, the sliding shaft frame is fixedly installed inside the purification installation box; the limiting sliding shaft is slidably installed on the sliding shaft frame, and the limiting sliding shaft passes through the exhaust connecting pipe; the limiting sliding shaft is aligned with the detection column.

[0007] Furthermore, the purification installation component also includes: an air intake pipe, an exhaust connecting pipe, an exhaust pipe and a closing cover, the air intake pipe is fixedly installed on the purification installation box; the air intake pipe is provided with a flange; the exhaust connecting pipe is fixedly installed on the purification installation box; the exhaust pipe is fixedly installed on the top of the exhaust connecting pipe; the exhaust pipe is provided with a flange; a closing cover is threadedly connected to the top of the purification installation box; the closing cover is used to close the purification installation box.

[0008] Furthermore, the rust detection component includes: a detection slider, a detection extrusion block and a probe shaft, the detection slider is slidably installed on the inner side of the rotating switching column; a detection extrusion block is fixedly installed on the side of the detection slider, and the detection extrusion block is attached to the extrusion protrusion; a probe shaft is slidably installed on the detection slider, and the bottom of the probe shaft is a conical structure; the probe shaft is attached to the mesh interval on the filter cartridge.

[0009] Furthermore, the rotary drive member includes: a rotary impeller and an extrusion protrusion, the rotary impeller is rotatably installed inside the rotary switching column; the rotary impeller corresponds to the filter plug-in cylinder; an extrusion protrusion is provided on the side of the rotary impeller; the extrusion protrusion is used to extrude the rust detection member.

[0010] Furthermore, the rotary switching part includes: a rotary switching column, a switching motor and a limiting boss, the rotary switching column is rotatably sleeved inside the purification installation box; the switching motor is fixedly installed inside the rotary switching column, and the output shaft of the switching motor is fixedly installed inside the purification installation box; the rotary switching column is provided with two through holes for plugging in the filtering device; four limiting bosses are fixedly installed on the rotary switching column, and the four limiting bosses are grouped in pairs; two groups of limiting bosses are respectively used for plugging in and limiting two filtering devices.

[0011] Furthermore, the filtering device includes: a filter plug-in cylinder, an isolation cylinder, a sliding protrusion block, a filter cylinder, a detection column and a tension spring, the filter plug-in cylinder is slidably inserted in the through hole on the rotating switching column; the filter plug-in cylinder is slidably inserted on the two limiting protrusions on the same side; the filter plug-in cylinder is slidably sleeved inside the filter plug-in cylinder; a circle of sliding protrusion blocks is fixedly installed on the outside of the isolation cylinder; a circle of sliding protrusion blocks is slidably connected to the filter plug-in cylinder; the sliding protrusion block is used to limit the axial sliding of the isolation cylinder; the filter cylinder is fixedly installed on the isolation cylinder; the filter cylinder is filled with filter material; filter mesh holes are respectively opened on the isolation cylinder and the filter cylinder; a detection column is fixedly installed on the end of the filter cylinder; a tension spring is sleeved inside the filter plug-in cylinder, and the tension spring is connected between the filter plug-in cylinder and the isolation cylinder; the isolation cylinder is used for anti-blockage protection.

[0012] Furthermore, the rust detection component also includes: a reset spring, a digital pressure sensor, a slide plate and a spring, the reset spring is fixedly installed on the side of the detection slider; the end of the reset spring is connected to the inner side of the rotating switching column; the digital pressure sensor is fixedly installed inside the detection slider; the digital pressure sensor is electrically connected to the pressure display; the slide plate is slidably installed inside the detection slider; the slide plate is attached to the digital pressure sensor; a spring is fixedly installed on the slide plate, and the other end of the spring is connected to the inner side of the probe shaft; the digital pressure sensor is used to detect rust on the filter cartridge.

[0013] In a second aspect, the present invention provides a method for purifying tail gas from a propane dehydrogenation device, using the tail gas purification equipment for a propane dehydrogenation device as described in the first aspect, the steps comprising:

[0014] 1) The air inlet pipe is equipped with a flange connected to the exhaust pipe of the propane dehydrogenation equipment. The exhaust gas carrying impurities is filtered by a filter cartridge and discharged through the exhaust pipe;

[0015] 2) When the filter cartridge is clogged after long-term use, the air pressure of the exhaust gas pushes the filter cartridge, driving the isolation cartridge to slide out of the filter plug-in cartridge. The mesh on the isolation cartridge can continue to purify and isolate impurities, preventing direct and complete blockage that causes excessive pressure increase in the propane dehydrogenation equipment;

[0016] 3) Start the switching motor to drive the rotating switching column to rotate, so as to switch the upper filter cartridge to the lower part, connect it with the air inlet pipe, and switch the filter cartridge.

[0017] Compared with the prior art, the tail gas purification treatment equipment and method of a propane dehydrogenation device of the present invention has the following beneficial effects:

[0018] In the present invention, rust detection work can be carried out through the rust detection part, which can prevent the problem that the corrosive exhaust gas in the propane deoxygenation exhaust gas causes the filter cartridge to rust without being discovered due to factors such as humidity, and can ensure the filtering performance of the filter cartridge, avoid the corrosion and rust of the filter cartridge that is not convenient to intuitively determine, resulting in the failure of the purification effect or the generation of rust residue without being discovered, and can ensure the safety of the structure. The service life of the filter cartridge can be detected, and the rust condition of the filter cartridge surface can be reflected by detecting the smoothness of the filter cartridge surface. When the filter cartridge surface is corroded with pits or rust protrusions, it can be detected in real time by a digital pressure sensor, which is convenient for the staff to replace the filter cartridge in time.

[0019] In addition, by using a blockage detection component, the slidable filter cartridge can be used to perform blockage detection by utilizing the characteristic that the air flow rate becomes low after being blocked and is pushed by air pressure. This can provide prompts in a timely manner, and it is convenient to switch the filter device while ensuring closure. The detection sensitivity can be adjusted by using the blockage detection component. The blockage detection component can be adjusted according to the actual exhaust gas emission needs to provide prompts for replacement under different degrees of blockage, thereby improving the flexibility of structural use.

[0020] In addition, the use of a filtering device can achieve anti-blocking filtration. When the filter cartridge is blocked, the air pressure can push the filter cartridge forward and drive the isolation cartridge to extend, thereby preventing the problem of being unable to exhaust air when the filter cartridge is blocked. The safety of purified exhaust air can be improved. At the same time, the rotating switching part can be used to quickly switch the filtering device to ensure the filtration quality. At the same time, the equipment can switch the filter cartridge without stopping, ensuring the continuity of filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] Figure 1 A schematic diagram showing the overall structure of the present application;

[0024] Figure 2 A cross-sectional view showing the internal structure of the present application;

[0025] Figure 3 A schematic diagram showing the front side structure of the present application is shown;

[0026] Figure 4 A schematic diagram of the purification installation of the present application is shown;

[0027] Figure 5 A schematic diagram showing a rotation switching portion of the present application is shown;

[0028] Figure 6 A schematic diagram showing the structure of the filtering device of the present application;

[0029] Figure 7 This application shows Figure 2 A magnified view of the structure of the middle B area;

[0030] Figure 8 A schematic diagram showing a rotary drive member structure of the present application is shown;

[0031] Fig. 9 This application shows Figure 2 A magnified view of the structure of the middle C region;

[0032] Fig.10 A schematic diagram showing the internal structure of the rotation switching unit of the present application;

[0033] Fig.11 This application shows Figure 2 A magnified view of the structure of the middle D region;

[0034] Fig.12 This application shows Figure 8 Enlarged view of the structure of region E in the middle.

[0035] Description of reference numerals:

[0036] 1. Purification installation part; 101. Purification installation box; 1011. Pressure display; 1012. Warning light; 102. Intake pipe; 103. Exhaust connecting pipe; 1031. Exhaust pipe; 104. Closing cover; 2. Rotary switching part; 201. Rotary switching column; 202. Switching motor; 203. Limiting convex column; 3. Filter device; 301. Filter plug-in cylinder; 302. Isolation cylinder; 3021. Sliding protrusion block; 303. Filter cylinder; 3031. Detection column; 304. Tension spring; 4. Sliding Limiting part; 401, sliding shaft frame; 402, limiting sliding shaft; 5, blocking detection part; 501, blocking frame; 502, position adjustment bolt; 503, sleeve; 504, anti-accidental touch spring; 505, micro switch; 6, rotating drive part; 601, rotating impeller; 6011, extrusion protrusion; 7, rust detection part; 701, detection slider; 7011, detection extrusion block; 702, probe shaft; 703, reset spring; 704, digital pressure sensor; 7041, slide plate; 705, spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1 to 12 :

[0039] The present invention proposes a propane dehydrogenation device tail gas purification treatment equipment, including a purification installation 1, on which a rotation switching part 2 is installed; two filter devices 3 are installed on the rotation switching part 2; the rotation switching part 2 is used to drive the two filter devices 3 to rotate inside the purification installation 1; a sliding limit part 4 is installed on the purification installation 1; the sliding limit part 4 is attached to the filter device 3 below; a blockage detection part 5 is installed on the purification installation 1; the sliding limit part 4 is sleeved on the blockage detection part 5; the blockage detection part 5 is used to detect the flowability of the filter device 3; two rotating driving parts 6 are rotatably installed on the rotation switching part 2; two rust detection parts 7 are installed on the rotation switching part 2; the two rust detection parts 7 are respectively attached to the two rotating driving parts 6; the two rust detection parts 7 are respectively used to detect the rust degree of the two filter devices 3; the purification installation 1 includes: a purification installation box 101, a pressure display 1011 and a prompt light 1012, the pressure display 1011 is fixedly installed on the purification installation box 101; the prompt light 1012 is fixedly installed on the purification installation box 101.

[0040] In the embodiment of the present invention, the purification installation member 1 further includes: an air intake pipe 102, an exhaust connecting pipe 103, an exhaust pipe 1031 and a closing cover 104. The air intake pipe 102 is fixedly installed on the purification installation box 101; the air intake pipe 102 is provided with a flange; the exhaust connecting pipe 103 is fixedly installed on the purification installation box 101; the exhaust pipe 1031 is fixedly installed on the top of the exhaust connecting pipe 103; the exhaust pipe 1031 is provided with a flange; the closing cover 104 is threadedly connected to the top of the purification installation box 101; the closing cover 104 is used to close the purification installation box 101; the screw The rotary switching part 2 includes: a rotary switching column 201, a switching motor 202 and a limiting convex column 203. The rotary switching column 201 is rotatably sleeved inside the purification installation box 101; the switching motor 202 is fixedly installed inside the rotary switching column 201, and the output shaft of the switching motor 202 is fixedly installed inside the purification installation box 101; the rotary switching column 201 is provided with two through holes for plugging the filter device 3; four limiting convex columns 203 are fixedly installed on the rotary switching column 201, and the four limiting convex columns 203 are grouped in pairs; two groups of limiting convex columns 20 3 are used to insert and limit two filter devices 3 respectively; the filter device 3 includes: a filter plug-in cylinder 301, an isolation cylinder 302, a sliding protrusion block 3021, a filter cylinder 303, a detection column 3031 and a tension spring 304, the filter plug-in cylinder 301 is slidably inserted in the through hole on the rotating switching column 201; the filter plug-in cylinder 301 is slidably inserted on the two limiting protrusions 203 on the same side; the isolation cylinder 302 is slidably sleeved inside the filter plug-in cylinder 301; a circle of sliding protrusion blocks 3021 are fixedly installed on the outside of the isolation cylinder 302; a circle of sliding protrusion blocks 302 1 is slidably connected to the filter plug-in cylinder 301; the sliding protrusion block 3021 is used to limit the axial sliding of the isolation cylinder 302; the filter cylinder 303 is fixedly installed on the isolation cylinder 302; the filter cylinder 303 is filled with filter material, and the filter material inside the filter cylinder 303 can be activated carbon filter material; filter mesh holes are respectively opened on the isolation cylinder 302 and the filter cylinder 303; a detection column 3031 is fixedly installed at the end of the filter cylinder 303; a tension spring 304 is sleeved inside the filter plug-in cylinder 301, and the tension spring 304 is connected between the filter plug-in cylinder 301 and the isolation cylinder 302;The isolation cylinder 302 is used for anti-blocking protection. The filter device 3 can be used to achieve anti-blocking filtering. When the filter cylinder 303 is blocked, the air pressure pushes the filter cylinder 303 forward under the action of air pressure, driving the isolation cylinder 302 to extend, which can prevent the problem of being unable to exhaust when the filter cylinder 303 is blocked, and can improve the safety of purified exhaust of this structure. At the same time, the rotating switching part 2 can quickly switch the filter device 3, and a new filter device 3 can be replaced to ensure the filtration quality. At the same time, the equipment can be switched without stopping, ensuring the continuity of filtration. The sliding protrusion block 3021 can be used to axially limit the isolation cylinder 302, and at the same time cooperate with the limiting protrusion 203 to plug the limiting filter plug-in cylinder 301, ensuring that the probe shaft 702 can move in real time at the mesh interval on the filter cylinder 303, avoiding the mesh on the filter cylinder 303 interfering with the detection of the probe shaft 702. ;

[0041] In the embodiment of the present invention, the sliding limit part 4 includes: a sliding shaft frame 401 and a limit sliding shaft 402, the sliding shaft frame 401 is fixedly installed inside the purification installation box 101; the limit sliding shaft 402 is slidably installed on the sliding shaft frame 401, and the limit sliding shaft 402 passes through the exhaust connection pipe 103; the limit sliding shaft 402 is aligned with the detection column 3031; the blockage detection part 5 includes: a blockage frame 501, a position adjustment bolt 502, a sleeve 503, an anti-mistouch spring 504 and a micro The blocking frame 501 is fixedly installed at the end of the exhaust connection pipe 103 by bolts; the blocking frame 501 is threadedly connected with a position adjustment bolt 502, and the position adjustment bolt 502 is provided with a hand wheel; the end of the position adjustment bolt 502 is fixedly installed with a sleeve 503; the limited position sliding shaft 402 is inserted into the sleeve 503; the sleeve 503 is sleeved with an anti-mistaken touch spring 504; the sleeve 503 is fixedly installed with a micro switch 505; the micro switch 505 The electrically connected warning light 1012; the micro switch 505 is used to detect the blockage of the filter cartridge 303. The blockage detection member 5 can be used to utilize the characteristics that the air flow rate of the slidable filter cartridge 303 becomes low after being blocked and is pushed by air pressure to perform blockage detection work, and prompt work can be performed in time, which can facilitate the switching of the filter device 3 while ensuring closure, which is more efficient. The blockage detection member 5 can be used to adjust the detection sensitivity, and the blockage detection member 5 can be adjusted to prompt replacement work under different degrees of blockage. The rotating position adjustment bolt 502 can drive the micro switch 505 to adjust the distance with the end of the limit sliding shaft 402. The larger the distance, the lower the sensitivity of the filter cartridge 303 blockage detection. Conversely, the smaller the distance, the higher the sensitivity of the filter cartridge 303 blockage detection. The flexibility of the structure can be improved, and the sliding limit part 4 can be used to fit the end of the detection column 3031 for detection to ensure accurate detection.

[0042] Embodiment 2, on the basis of embodiment 1, the rotary driving member 6 comprises: a rotary impeller 601 and an extrusion protrusion 6011, the rotary impeller 601 is rotatably mounted inside the rotary switching column 201; the rotary impeller 601 corresponds to the filter plug-in cylinder 301; an extrusion protrusion 6011 is provided on the side of the rotary impeller 601; the extrusion protrusion 6011 is used to squeeze the rust detection member 7; the rust detection member 7 comprises: a detection slider 701, a detection extrusion block 7011 and a probe shaft 702, the detection slider 701 is slidably mounted on the inner side of the rotary switching column 201; a detection extrusion block 7011 is fixedly mounted on the side of the detection slider 701, and the detection extrusion block 7011 is attached to the extrusion protrusion 6011; a probe shaft 702 is slidably mounted on the detection slider 701, and the bottom of the probe shaft 702 is a conical structure; the probe shaft 702 is attached to The mesh interval on the filter cartridge 303; the rust detection member 7 also includes: a reset spring 703, a digital pressure sensor 704, a slide plate 7041 and a spring 705, and the HZC-H1 digital pressure sensor 704 can be used, and the pressure display 1011 is a matching display; the reset spring 703 is fixedly mounted on the side of the detection slider 701; the end of the reset spring 703 is connected to the inner side of the rotating switching column 201; the digital pressure sensor 704 is fixedly mounted inside the detection slider 701; the digital pressure sensor 704 is electrically connected to the pressure display 1011; the slide plate 7041 is slidably mounted inside the detection slider 701; the slide plate 7041 is attached to the digital pressure sensor 704; a spring 705 is fixedly mounted on the slide plate 7041, and the other end of the spring 705 is connected to the inner side of the probe shaft 702;The digital pressure sensor 704 is used to detect the rust of the filter cartridge 303. The rust detection part 7 can be used to perform rust detection, which can prevent the problem that the corrosive exhaust gas in the propane deoxygenation exhaust gas causes the filter cartridge 303 to rust without being discovered due to factors such as humidity. The filtering performance of the filter cartridge 303 can be ensured, and the corrosion and rust of the filter cartridge 303 cannot be easily determined intuitively, resulting in the failure of the purification effect or the generation of rust residue without being discovered. The safety of the structure can be ensured, and the service life of the filter cartridge 303 can be detected. The rust condition of the surface of the filter cartridge 303 can be reflected by detecting the smoothness of the surface of the filter cartridge 303. When the surface of the filter cartridge 303 is corroded with pits or rust protrusions, the digital pressure sensor can be used to detect the corrosion. The sensor 704 can detect in real time, which is convenient for the staff to replace the filter cartridge 303 in time. The rust detection member 7 can be driven to move by the rotating driving member 6, and the sliding detection can be performed on the surface of the filter cartridge 303. The driving work can be performed by the airflow pressure, which is efficient and direct. Under the action of the airflow, the rotating impeller 601 is driven to rotate. At this time, the extrusion protrusion 6011 on the rotating impeller 601 can squeeze the detection extrusion block 7011, push the detection slider 701 to move, and drive the probe shaft 702 to fit the rust protrusion or depression. At this time, the elevation of the probe shaft 702 changes, and the detection is performed through the digital pressure sensor 704, and the data is displayed through the pressure display 1011, which is convenient for the staff to inspect and observe, and ensure the quality of waste gas treatment. ;

[0043] In addition, the present invention also provides a method for purifying tail gas from a propane dehydrogenation device, using a tail gas purification device for a propane dehydrogenation device as described in the above embodiment, the steps of which include:

[0044] 1) The air inlet pipe 102 is provided with a flange connected to the exhaust pipe of the propane dehydrogenation equipment. The exhaust gas carrying impurities is filtered by the filter cartridge 303 and discharged through the exhaust pipe 1031;

[0045] 2) When the filter cartridge 303 is clogged after long-term use, the air pressure of the exhaust gas pushes the filter cartridge 303, driving the isolation cartridge 302 to slide out of the filter plug-in cartridge 301. The mesh on the isolation cartridge 302 can continue to purify and isolate impurities, preventing direct and complete blockage that causes excessive pressure increase in the propane dehydrogenation equipment;

[0046] 3) Start the switching motor 202 to drive the rotating switching column 201 to rotate, so as to switch the upper filter cartridge 303 to the lower side, connect with the air inlet pipe 102 , and switch the filter cartridge 303 .

[0047] The working principle of this embodiment is as follows: first, the exhaust pipe of the propane dehydrogenation equipment is connected to the flange on the air inlet pipe 102, and the waste gas carrying impurities is filtered by the filter cartridge 303 and discharged through the exhaust pipe 1031. When the filter cartridge 303 is blocked after long-term use, the air pressure pushes the filter cartridge 303, driving the isolation cartridge 302 to slide out of the filter plug-in cartridge 301. The mesh on the isolation cartridge 302 can continue to purify and isolate impurities and prevent direct and complete blockage, providing a buffer time for replacing the filter cartridge 303, avoiding that the waste gas pressure has nowhere to be discharged, and when the filter cartridge 303 is blocked, it is pushed by the air pressure. When the filter cartridge 303 is pushed out to filter the filter, the filter cartridge 303 is still moved forward, and the detection column 3031 moves and squeezes the limit slide shaft 402 at the same time. The movement of the limit slide shaft 402 squeezes the micro switch 505, and squeezing the micro switch 505 can control the prompt light 1012 to light up. At this time, the staff can start the switching motor 202 to drive the rotating switching column 201 to rotate, and switch the upper filter cartridge 303 to the lower side to communicate with the air inlet pipe 102. When the filter cartridge 303 is used normally and is not blocked, the gas can flow normally, and the tension spring 30 4 can pull the isolation cylinder 302 inside the filter plug-in cylinder 301, so that the exhaust gas does not flow and the blockage does not occur; when the filter device 3 needs to be replaced, the closing cover 104 can be rotated to open and the filter plug-in cylinder 301 can be removed and replaced; under the action of the airflow, the rotating impeller 601 is driven to rotate, and at this time, the extrusion protrusion 6011 on the rotating impeller 601 can squeeze the detection extrusion block 7011, and push the detection slider 701 to move, and the reset spring 703 can push the set push detection slider 701 to fit the end of the rotating impeller 601 and the extrusion protrusion 6011 in real time. When the detection slider 701 is pushed to move, the probe shaft 702 is driven to slide at the mesh intervals on the filter cartridge 303. When the outer surface of the filter cartridge 303 is rusted, the probe shaft 702 is elastically squeezed by the reset spring 703 to fit the rusted protrusions or depressions. At this time, the elevation of the probe shaft 702 changes, and the stroke length of the reset spring 703 also changes. The pressure detection can be performed through the digital pressure sensor 704, and the data can be displayed through the pressure display 1011, so that the staff can inspect and observe the deviation between the harness data and the benchmark data. If the deviation is large, the filter cartridge 303 needs to be replaced.

[0048] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0049] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A propane dehydrogenation device tail gas purification treatment equipment, comprising a purification installation (1), wherein a rotation switching part (2) is installed on the purification installation (1); characterized in that: Two filter devices (3) are mounted on the rotation switching portion (2); the rotation switching portion (2) is used to drive the two filter devices (3) to rotate inside the purification mounting component (1); The purification mounting member (1) is provided with a sliding limiter (4); the sliding limiter (4) is attached to the filter device (3) below; A blockage detection component (5) is mounted on the purification mounting component (1); a sliding limiter (4) is sleeved on the blockage detection component (5); the blockage detection component (5) is used to detect the flowability of the filter device (3); Two rotating drive members (6) are rotatably mounted on the rotating switching portion (2); Two rust detection members (7) are mounted on the rotation switching portion (2); the two rust detection members (7) are respectively attached to the two rotation driving members (6); the two rust detection members (7) are respectively used to detect the rust degree of the two filter devices (3); The purification installation component (1) comprises: a purification installation box (101), a pressure display (1011) and a warning light (1012); the pressure display (1011) is fixedly installed on the purification installation box (101); and the warning light (1012) is fixedly installed on the purification installation box (101); The rotary switching part (2) comprises: a rotary switching column (201), a switching motor (202) and a limiting convex column (203); the rotary switching column (201) is rotatably sleeved inside the purification installation box (101); the switching motor (202) is fixedly installed inside the rotary switching column (201), and the output shaft of the switching motor (202) is fixedly installed inside the purification installation box (101); the rotary switching column (201) is provided with two through holes for plugging in the filter device (3); four limiting convex columns (203) are fixedly installed on the rotary switching column (201), and the four limiting convex columns (203) are grouped in pairs; the two groups of limiting convex columns (203) are respectively used for plugging in and limiting the two filter devices (3); The filter device (3) comprises: a filter plug-in cylinder (301), an isolating cylinder (302), a sliding protrusion block (3021), a filter cylinder (303), a detection column (3031) and a tension spring (304); the filter plug-in cylinder (301) is slidably plugged into a through hole on a rotating switching column (201); the filter plug-in cylinder (301) is slidably plugged into two limiting protrusions (203) on the same side; the filter plug-in cylinder (301) is slidably sleeved with the isolating cylinder (302) inside; a circle of sliding protrusion blocks (3021) is fixedly mounted on the outside of the isolating cylinder (302); a circle of sliding protrusion blocks (3021) is slidably connected to the through hole; The filter plug-in cylinder (301) is provided with a sliding protrusion (3021) for limiting the axial sliding of the isolation cylinder (302); a filter cylinder (303) is fixedly mounted on the isolation cylinder (302); the filter cylinder (303) is filled with filter material; filter mesh holes are respectively provided on the isolation cylinder (302) and the filter cylinder (303); a detection column (3031) is fixedly mounted on the end of the filter cylinder (303); a tension spring (304) is sleeved inside the filter plug-in cylinder (301), and the tension spring (304) is connected between the filter plug-in cylinder (301) and the isolation cylinder (302); the isolation cylinder (302) is used for anti-blocking protection; The rotary drive member (6) comprises: a rotary impeller (601) and an extrusion protrusion (6011); the rotary impeller (601) is rotatably mounted inside the rotary switching column (201); the rotary impeller (601) corresponds to the filter plug-in cylinder (301); a side surface of the rotary impeller (601) is provided with an extrusion protrusion (6011); the extrusion protrusion (6011) is used to extrude the rust detection member (7); The rust detection member (7) comprises: a detection slider (701), a detection extrusion block (7011) and a probe shaft (702); the detection slider (701) is slidably mounted on the inner side of the rotating switching column (201); the detection extrusion block (7011) is fixedly mounted on the side of the detection slider (701), and the detection extrusion block (7011) is attached to the extrusion protrusion (6011); the probe shaft (702) is slidably mounted on the detection slider (701), and the bottom of the probe shaft (702) is a conical structure; the probe shaft (702) is attached to the mesh interval on the filter cartridge (303).

2. The tail gas purification treatment equipment for a propane dehydrogenation device according to claim 1, characterized in that: The purification installation component (1) further comprises: an air intake pipe (102), an exhaust connecting pipe (103), an exhaust pipe (1031) and a closing cover (104); the air intake pipe (102) is fixedly mounted on the purification installation box (101); the air intake pipe (102) is provided with a flange; the exhaust connecting pipe (103) is fixedly mounted on the purification installation box (101); the exhaust pipe (1031) is fixedly mounted on the top of the exhaust connecting pipe (103); the exhaust pipe (1031) is provided with a flange; the closing cover (104) is threadedly connected to the top of the purification installation box (101); the closing cover (104) is used to close the purification installation box (101).

3. The tail gas purification treatment equipment for a propane dehydrogenation device according to claim 2, characterized in that: The sliding limit portion (4) comprises: a sliding shaft frame (401) and a limit sliding shaft (402); the sliding shaft frame (401) is fixedly installed inside the purification installation box (101); the limit sliding shaft (402) is slidably installed on the sliding shaft frame (401), and the limit sliding shaft (402) passes through the exhaust connection pipe (103); the limit sliding shaft (402) is aligned with the detection column (3031).

4. The tail gas purification treatment equipment for a propane dehydrogenation device according to claim 3, characterized in that: The blockage detection component (5) comprises: a blockage frame (501), a position adjustment bolt (502), a sleeve (503), an anti-mistaken touch spring (504) and a micro switch (505); the blockage frame (501) is fixedly mounted on the end of the exhaust connection pipe (103) by means of bolts; the blockage frame (501) is threadedly connected with a position adjustment bolt (502), and a hand wheel is provided on the position adjustment bolt (502); the end of the position adjustment bolt (502) is fixedly mounted with a sleeve (503); a limit sliding shaft (402) is inserted into the sleeve (503); an anti-mistaken touch spring (504) is sleeved inside the sleeve (503); a micro switch (505) is fixedly mounted inside the sleeve (503); and the micro switch (505) is electrically connected to a warning light (1012).

5. The tail gas purification treatment equipment for a propane dehydrogenation device according to claim 1, characterized in that: The rust detection component (7) further comprises: a reset spring (703), a digital pressure sensor (704), a slide plate (7041) and a spring (705), wherein the reset spring (703) is fixedly mounted on the side of the detection slider (701); the end of the reset spring (703) is connected to the inner side of the rotation switching column (201); the digital pressure sensor (704) is fixedly mounted inside the detection slider (701); the digital pressure sensor (704) is electrically connected to a pressure display (1011); the slide plate (7041) is slidably mounted inside the detection slider (701); the slide plate (7041) is attached to the digital pressure sensor (704); a spring (705) is fixedly mounted on the slide plate (7041), and the other end of the spring (705) is connected to the inner side of the probe shaft (702); the digital pressure sensor (704) is used to detect rust of the filter cartridge (303).

6. A method for purifying tail gas from a propane dehydrogenation device, using the tail gas purification equipment for a propane dehydrogenation device as claimed in claim 2, characterized in that: The steps include: 1) The air inlet pipe (102) is provided with a flange connected to an exhaust pipe of the propane dehydrogenation equipment, and the waste gas carrying impurities is filtered by a filter cartridge (303) and discharged through the exhaust pipe (1031); 2) When the filter cartridge (303) is clogged after long-term use, the air pressure of the exhaust gas pushes the filter cartridge (303), driving the isolation cartridge (302) to slide out of the filter plug-in cartridge (301). The mesh on the isolation cartridge (302) can continue to purify and isolate impurities, preventing direct and complete clogging from causing excessive pressure increase in the propane dehydrogenation equipment; 3) Starting the switching motor (202) to drive the rotating switching column (201) to rotate, thereby switching the upper filter cartridge (303) to the lower part, connecting with the air inlet pipe (102), and switching the filter cartridge (303).

Images