Propionaldehyde distillation tail gas treatment equipment

Abstract

This invention belongs to the field of tail gas treatment technology and discloses a propionaldehyde distillation tail gas treatment device, including a base. A cooling outer cylinder is fixedly mounted on the top of the base, and a cooling inner cylinder is movably sleeved inside the cooling outer cylinder. A spiral condensation channel is provided between the cooling outer cylinder and the cooling inner cylinder. Both the cooling outer cylinder and the cooling inner cylinder have cooling chambers located outside the spiral condensation channel. This invention repeatedly and randomly captures and retains a portion of the tail gas during the spiral conveying process in a closed chamber, increasing the heat exchange time by utilizing the stop time, thereby improving the condensation effect. Furthermore, during the reciprocating lateral movement, the cross-sectional area of ​​the spiral conveying system is changed. Combined with the gradual misalignment process, the conveyed tail gas is disturbed, achieving automatic mixing under disturbance. Under automatic mixing, the tail gas is repeatedly intercepted at various conveying positions, achieving enhanced condensation by continuously retaining it in the condensation area, thus improving the condensation separation effect.

Description

Technical Field

[0001] This invention belongs to the field of exhaust gas treatment technology, specifically a propionaldehyde distillation exhaust gas treatment device. Background Technology

[0002] Propane distillation is a process that separates impurities from a mixture of propane and raw materials to purify propane. However, during the distillation process, some propane remains that is not completely condensed, requiring further treatment of the exhaust gas. This is achieved through a second condensation and adsorption process to recover the propane and reduce emissions.

[0003] In existing propionaldehyde distillation tail gas treatment equipment, the tail gas is usually fed into a re-condensation mechanism for further condensation and recovery during use, and a spiral tube is immersed in cooling water for cooling. However, the tail gas is transported through the spiral tube quickly, and the actual condensation efficiency is still not high. Moreover, impurities in the tail gas adhere to and accumulate in the spiral tube, which reduces the cross-sectional area of ​​the internal channel and easily causes pipe blockage due to the accumulated dirt. However, the internal cleaning is difficult and the overall application effect is not good. Summary of the Invention

[0004] The purpose of this invention is to provide a propionaldehyde distillation tail gas treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a propionaldehyde distillation tail gas treatment device, comprising a base, a cooling outer cylinder fixedly mounted on the top of the base, a cooling inner cylinder movably sleeved inside the cooling outer cylinder, a spiral condensation channel provided between the cooling outer cylinder and the cooling inner cylinder, cooling chambers located outside the spiral condensation channel provided inside both the cooling outer cylinder and the cooling inner cylinder, metal baffles provided at both ends of the cooling inner cylinder, a fixed air inlet end provided at one end of the cooling outer cylinder, and a distribution control shaft movably sleeved inside the cooling inner cylinder, the outer surface of the distribution control shaft being... The cooling inner cylinder is detachably installed with a movable air outlet. It is elastically positioned between the fixed air inlet and the movable air outlet. The exhaust gas is discharged through the fixed air inlet, the spiral condensation channel, and the movable air outlet. The bottom of the cooling outer cylinder is provided with a collection part communicating with the spiral condensation channel. A magnetic adjustment mechanism is provided between the distribution control shaft and the fixed air inlet. The end of the cooling outer cylinder is provided with a drive mechanism. The drive mechanism controls the rotation of the distribution control shaft and controls the reciprocating movement of the cooling inner cylinder through the magnetic adjustment mechanism when the distribution control shaft rotates, so that the spiral condensation channel reciprocates and partially reciprocates and seals.

[0006] Preferably, the spiral condensation channel includes a first spiral groove and a second spiral groove, the first spiral groove being disposed on the inner wall of the outer cooling cylinder and the second spiral groove being disposed on the outer side of the inner cooling cylinder.

[0007] Preferably, the fixed air inlet end is a fixed frame, the movable air outlet end is a rotating frame, a sealing frame is fixedly fitted inside both the fixed frame and the rotating frame, a spring is fixedly connected inside the fixed frame, the cooling inner cylinder abuts against the springs on both sides of the compression through the metal baffle at the end, an air inlet pipe is provided at the outer end of the fixed frame, and a conduction locking mechanism is provided at the outer end of the rotating frame.

[0008] Preferably, the distribution control shaft includes a shaft body, an input liquid channel, and an output liquid channel. Both the input and output liquid channels are located inside the shaft body. The outer end of the distribution control shaft is also provided with a guiding mechanism. The guiding mechanism has an inlet and an outlet. The inlet guides the cooling water to the cooling chamber of the inner cooling cylinder through the connected input liquid channel, and the outlet connects to the output liquid channel to discharge the cooled cooling water from the cooling chamber of the inner cooling cylinder. The shaft body is rotatably mounted to the fixed frame via an external bearing. The outer side of the outer cooling cylinder is symmetrically provided with an input pipe and an output pipe. Coolant is input into the cooling chamber of the outer cooling cylinder through the input pipe and discharged through the output pipe.

[0009] Preferably, the magnetic adjustment mechanism includes an assembly ring, an electromagnet, and a trigger. The assembly ring is fixed on the outer surface of the shaft and located in a fixed frame. The electromagnet is fixedly nested on the assembly ring. The trigger is fixedly nested at the end of the fixed frame and located on the rotation path of the electromagnet. When the trigger contacts one end of the electromagnet, it controls the electromagnet to start and generate magnetic attraction, and the metal baffle on one side of the attraction moves closer, causing the cooling inner cylinder to move laterally.

[0010] Preferably, the drive mechanism includes a motor, a first gear, and a second gear. The output shaft of the motor is fixedly sleeved with the first gear, and the second gear is fixedly sleeved on the outer surface of the shaft, and the second gear meshes with the first gear.

[0011] Preferably, the collecting section includes a collecting box and a connecting pipe, one end of which is connected to the collecting box, and the other end of which passes through the bottom of the cooling outer cylinder and is connected to the bottom of the first spiral groove.

[0012] Preferably, the outer surface of the shaft is spirally fitted with two sets of locking rings, one end of the cooling outer cylinder is provided with an adapter ring groove, one end of the rotating frame is rotatably sleeved in the adapter ring groove, and the rotating frame is clamped and fixed to the outside of the shaft by the two sets of locking rings, so that the rotating frame rotates with the shaft.

[0013] Preferably, the top of the base is also provided with a movable adsorption treatment box, and the end of the rotating frame is provided with a conduction locking mechanism. The rotating frame is detachably connected to a stirring distribution part through the conduction locking mechanism. When the distribution control shaft drives the rotating frame to rotate, the stirring distribution part stirs the adsorption packing inside the adsorption treatment box and releases the exhaust gas at the same time.

[0014] Preferably, the adsorption treatment box includes a storage box and an intermediate plate. The intermediate plate is disposed at one end of the storage box and forms an annular gap at the end of the storage box. The intermediate plate is supported by a connecting rod in the storage box. An air outlet is provided at the other end of the storage box. The stirring distribution part includes a connecting pipe and a side hole. The connecting pipe rotates along the annular gap. The side hole is opened on the outer side of the connecting pipe. The outer side of the connecting pipe is also provided with a stirring plate located in the storage box. A movable adjustment part is provided on the base. The movable adjustment part controls the misalignment of the adsorption treatment box and the cooling outer cylinder.

[0015] The beneficial effects of this invention are as follows:

[0016] (1) By utilizing the distribution control shaft, magnetic adjustment mechanism, cooling inner cylinder and cooling outer cylinder, the present invention achieves dynamic change of the spiral condensation channel formed by the combination of the first spiral groove and the second spiral groove during actual tail gas condensation treatment. In the process of dynamic change of misalignment and resetting, part of the tail gas in the spiral conveying process is repeatedly captured and trapped in the closed chamber. The heat exchange time is increased by using the stop time, which improves the condensation effect. In the process of reciprocating horizontal movement, the cross-sectional area of ​​the spiral conveying is also changed. In the process of gradual misalignment, the conveying tail gas is disturbed. Automatic mixing is achieved under the disturbance. Under the automatic mixing, the tail gas is repeatedly trapped at each conveying position, which continuously traps the tail gas in the condensation area and improves the condensation separation effect.

[0017] (2) By utilizing the reciprocating cooling inner cylinder, the present invention, in the actual process of transporting exhaust gas, on the one hand, utilizes the exhaust gas disturbance caused by repeated misalignment to clean the spiral condensation channel by the disturbance effect, and the transport cross-sectional area changes dynamically and the transport intensity is intermittently enhanced. Under the disturbance and enhancement, the inner wall is automatically purged, reducing the dirt accumulated on the inner wall of the spiral condensation channel. On the other hand, the dynamically moving cooling inner cylinder continuously realizes the automatic cutting off of the spiral condensation channel. In response to the problem of inner wall blockage, the large volume of dirt in the spiral condensation channel is automatically cleaned by misalignment cutting off.

[0018] (3) The present invention utilizes a locking ring to lock the rotating frame, and in conjunction with the cooling inner cylinder that is elastically squeezed in the rotating frame and the fixed frame, reuses the movement capability of the cooling inner cylinder. After the rotating frame is removed, the cooling inner cylinder can be removed along the outer side of the distribution control shaft and the inner side of the cooling outer cylinder, so as to achieve complete separation and opening of the first spiral groove and the second spiral groove. Thus, the inner wall of the open first spiral groove and the second spiral groove can be cleaned. For complex spiral condensation channels, simple and effective comprehensive cleaning and maintenance can also be completed.

[0019] (4) The present invention utilizes a distribution control shaft and a rotating frame to achieve the rotation of the rotating frame under locked installation. At the same time, the stirring distribution part is connected and fixed at the end of the rotating frame. During the above-mentioned reciprocating dynamic staggered condensation, the rotation power simultaneously controls the stirring distribution part to rotate in the adsorption treatment box. On the one hand, the rotation action continuously stirs the filled adsorbent particles, improving dispersion and uniformity, thereby improving the absorption and treatment effect of the tail gas. On the other hand, the rotation also realizes the dynamic change of the tail gas outlet direction, thereby further improving the uniformity of the adsorption treatment of the tail gas and greatly improving the tail gas treatment effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a cross-sectional schematic diagram of the cooling outer cylinder and the cooling inner cylinder of the present invention;

[0024] Figure 5 This is an exploded schematic diagram of the cooling outer cylinder and cooling inner cylinder of the present invention;

[0025] Figure 6 This is a schematic diagram showing the connection between the drive mechanism and the distribution control shaft of the present invention;

[0026] Figure 7 A cross-sectional schematic diagram illustrating the allocation of control axes in this invention;

[0027] Figure 8 This is a cross-sectional schematic diagram of the fixing frame of the present invention;

[0028] Figure 9 This is a cross-sectional schematic diagram of the rotating frame of the present invention;

[0029] Figure 10 This is a schematic diagram of the collecting section of the present invention;

[0030] Figure 11 This is a cross-sectional schematic diagram of the adsorption treatment box and the stirring and distributing section of the present invention.

[0031] In the diagram: 1. Base; 2. Cooling outer cylinder; 3. Cooling inner cylinder; 4. Spiral groove No. 1; 5. Spiral groove No. 2; 6. Metal baffle; 7. Collection section; 71. Collection box; 72. Conductor pipe; 8. Fixing frame; 9. Rotating frame; 10. Sealing frame; 11. Spring; 12. Distribution control shaft; 121. Shaft body; 122. Input liquid channel; 123. Output liquid channel; 13. Drive mechanism; 14. Assembly ring; 15. Electromagnet; 16. Trigger; 17. Conductor mechanism; 18. Adsorption treatment box; 181. Storage box; 182. Intermediate plate; 19. Agitation and distribution section; 191. Connecting pipe; 192. Side hole; 20. Moving adjustment section; 21. Locking ring; 22. Conductor locking mechanism. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 11 As shown, this embodiment of the invention provides a propionaldehyde distillation tail gas treatment device, including a base 1, a cooling outer cylinder 2 fixedly mounted on the top of the base 1, a cooling inner cylinder 3 movably sleeved inside the cooling outer cylinder 2, a spiral condensation channel between the cooling outer cylinder 2 and the cooling inner cylinder 3, and cooling chambers located outside the spiral condensation channel in both the cooling outer cylinder 2 and the cooling inner cylinder 3. Metal baffles 6 are provided at both ends of the cooling inner cylinder 3, a fixed air inlet is provided at one end of the cooling outer cylinder 2, and a distribution control shaft 12 is movably sleeved inside the cooling inner cylinder 3. A detachable mounting plate is installed on the outer surface of the distribution control shaft 12. The cooling inner cylinder 3 is flexibly positioned between the fixed air inlet and the movable air outlet. The exhaust gas is discharged through the fixed air inlet, the spiral condensation channel and the movable air outlet. The bottom of the cooling outer cylinder 2 is provided with a collection part 7 that communicates with the spiral condensation channel. A magnetic adjustment mechanism is provided between the distribution control shaft 12 and the fixed air inlet. The end of the cooling outer cylinder 2 is provided with a drive mechanism 13. The drive mechanism 13 controls the distribution control shaft 12 to rotate, and controls the cooling inner cylinder 3 to move back and forth through the magnetic adjustment mechanism when the distribution control shaft 12 rotates, so that the spiral condensation channel is split back and forth and partially sealed back and forth.

[0034] Example 1: In use, the propionaldehyde exhaust gas to be treated is input along the end of the fixed frame 8, and the exhaust gas is input along the combined spiral condensation channel in the fixed frame 8, and is discharged along the spiral condensation channel and the rotating frame 9 at the other end to the connected stirring distribution section 19. At the same time, cooling ice water is input into its cooling chamber through the inlet pipe of the cooling outer cylinder 2, and another part of the cooling ice water is input into the input liquid channel 122 of the distribution control shaft 12 through the inlet of the conduction mechanism 17, and fills the cooling chamber of the cooling inner cylinder 3. In the process, as the exhaust gas is transported in the spiral condensation channel and exchanges heat with the cooling chambers on both the inner and outer sides, condensation is completed. The condensed exhaust gas, after entering the connecting pipe 191, is input into the storage tank 181 of the adsorption treatment box 18 through the side hole 192. After adsorption by the adsorption packing, it is discharged along the gas outlet at the end of the storage tank 181. After the exhaust gas condensation is completed, adsorption treatment is performed. When the condensation treatment is performed, the drive mechanism 13 is activated. The drive mechanism 13 controls the rotation of the distribution control shaft 12 through the meshing gear one and gear two, and the shaft body When 121 rotates, it drives the assembly ring 14 in the magnetic adjustment mechanism to rotate. As the assembly ring 14 drives the installed electromagnet 15 to rotate, the electromagnet 15 intermittently contacts the trigger 16 during rotation and intermittently generates a strong magnetic force. When a strong magnetic force is generated, it magnetically attracts the metal baffle 6, causing the cooling inner cylinder 3 to slide along the outside of the shaft 121. During the sliding, the second spiral groove 5 on the outside of the cooling inner cylinder 3 is misaligned with the first spiral groove 4 on the inner wall of the cooling outer cylinder 2, and the spiral condensation channel splits. As the first spiral groove 4 and the second spiral groove 5 gradually... The misalignment causes a change in the inner diameter of the channel that actually transports the exhaust gas. The exhaust gas is disturbed in the formed connecting channel. When the first spiral groove 4 and the second spiral groove 5 are completely misaligned, the volume of the original condensation channel is halved. The exhaust gas located in the second spiral groove 5 is sealed and stored, and the condensation time with the external cooling ice water is extended during the storage period. As the second spiral groove 5 moves back and forth to reset, the exhaust gas continuously transported in the spiral condensation channel is continuously captured and sealed by the second spiral groove 5, and continuously trapped in the condensation area to achieve extended condensation.

[0035] First, by utilizing the distribution control shaft 12, the magnetic adjustment mechanism, the inner cooling cylinder 3, and the outer cooling cylinder 2, during the actual tail gas condensation treatment, the rotating distribution control shaft 12, in conjunction with the magnetic adjustment mechanism, dynamically changes the spiral condensation channel formed by the combination of the first spiral groove 4 and the second spiral groove 5. During the dynamic changes of misalignment and resetting, a portion of the tail gas during the spiral conveying process is repeatedly and randomly captured and retained in the closed chamber. The heat exchange time is increased by utilizing the stop time, thereby improving the condensation effect. Furthermore, during the reciprocating lateral movement, the cross-sectional area of ​​the spiral conveying is also changed. In conjunction with the gradual misalignment, the conveyed tail gas is disturbed. Under the disturbance, automatic mixing is achieved, and under automatic mixing, the tail gas is repeatedly retained at each conveying position, thereby achieving enhanced condensation continuously retained in the condensation area and improving the condensation separation effect.

[0036] Furthermore, by utilizing the reciprocating cooling inner cylinder 3, during the actual transport of exhaust gas, on the one hand, the exhaust gas disturbance caused by repeated staggered movement is used to disturb and clean the spiral condensation channel, and the transport cross-sectional area changes dynamically, with the transport intensity increasing intermittently. Under the disturbance and enhancement, the inner wall is automatically purged, reducing the dirt accumulated on the inner wall of the spiral condensation channel. On the other hand, the dynamically moving cooling inner cylinder 3 continuously achieves automatic cutting off of the spiral condensation channel. For the problem of inner wall blockage, the large volume of dirt in the spiral condensation channel is automatically cleaned through staggered cutting off.

[0037] On the other hand, by using the locking ring 21 to lock the fixed rotating frame 9, and in conjunction with the cooling inner cylinder 3 elastically squeezed in the rotating frame 9 and the fixed frame 8, the mobility of the cooling inner cylinder 3 is reused. After the rotating frame 9 is removed, the cooling inner cylinder 3 can be removed along the outer side of the distribution control shaft 12 and the inner side of the cooling outer cylinder 2, so as to achieve complete separation and opening of the first spiral groove 4 and the second spiral groove 5. Thus, the inner wall of the open first spiral groove 4 and the second spiral groove 5 can be cleaned. For complex spiral condensation channels, simple and effective comprehensive cleaning and maintenance can also be completed.

[0038] Example 2: As the drive mechanism 13 drives the distribution control shaft 12 to rotate, the rotating distribution control shaft 12 drives the outer locking and fixed rotating frame 9 to rotate. The rotating frame 9 is fixed to the connecting pipe 191 through the end conduction locking mechanism 22, so that when the rotating frame 9 rotates, it drives the connecting pipe 191 to rotate. The connecting pipe 191 rotates in the annular intermittent at the end of the storage box 181. As the connecting pipe 191 rotates, on the one hand, the stirring plate on the outside of the connecting pipe 191 stirs the adsorbed particles filled inside the storage box 181. On the other hand, the rotating connecting pipe 191 causes the side hole 192 to dynamically discharge the condensed tail gas into the adsorbed particles, thus completing dynamic adsorption.

[0039] First, by utilizing the distribution control shaft 12 and the rotating frame 9, the distribution control shaft 12 drives the rotating frame 9 to rotate under locked installation. At the same time, in conjunction with the stirring distribution part 19 fixed at the end of the rotating frame 9, during the above-mentioned reciprocating dynamic staggered condensation, the rotational power simultaneously controls the stirring distribution part 19 to rotate in the adsorption treatment box 18. On the one hand, the rotational action continuously stirs the filled adsorbent particles, improving dispersion and uniformity, thereby improving the absorption and treatment effect of the exhaust gas. On the other hand, the rotation also realizes the dynamic change of the exhaust gas outlet direction, thereby further improving the uniformity of the adsorption and treatment of the exhaust gas and greatly improving the exhaust gas treatment effect.

[0040] The spiral condensation channel includes a first spiral groove 4 and a second spiral groove 5. The first spiral groove 4 is located on the inner wall of the outer cooling cylinder 2, and the second spiral groove 5 is located on the outer side of the inner cooling cylinder 3.

[0041] The spiral channel enables long-path condensation, extending the condensation time and improving the condensation effect.

[0042] The fixed air inlet end is a fixed frame 8, and the movable air outlet end is a rotating frame 9. Both the fixed frame 8 and the rotating frame 9 are fitted with a sealing frame 10. The fixed frame 8 is fixedly connected with a spring 11. The cooling inner cylinder 3 abuts against the springs 11 on both sides of the compression through the metal baffle 6 at the end. The fixed frame 8 is provided with an air inlet pipe at the outer end, and the rotating frame 9 is provided with a conduction locking mechanism 22 at the outer end.

[0043] The fixed frame 8 supports the distribution control shaft 12, the rotating frame 9 maintains rotational communication, and the sealing frame 10 cooperates with the metal baffle 6 to ensure that the end of the second spiral groove 5 is closed when the metal baffle 6 is displaced, thereby forming a partially closed space to cut off the exhaust gas. The springs 11 on both sides squeeze and abut to maintain the stability of the cooling inner cylinder 3, and prevent the cooling inner cylinder 3 from being directly driven to rotate under the damping action of the distribution control shaft 12. The elastic action facilitates elastic reset and also realizes squeezing positioning. A sealing ring is provided between the cooling inner cylinder 3 and the distribution control shaft 12 to maintain dynamic sealing.

[0044] The conduction locking mechanism 22 is specifically a sleeve and a bolt on the top of the sleeve. It is fixed by fitting one end of the connecting pipe 191 into the sleeve and clamping it with the bolt. The inner wall of the sleeve is provided with a sealing ring to maintain the seal.

[0045] The distribution control shaft 12 includes a shaft body 121, an input liquid channel 122, and an output liquid channel 123. Both the input liquid channel 122 and the output liquid channel 123 are located inside the shaft body 121. The outer end of the distribution control shaft 12 is also provided with a guiding mechanism 17. The guiding mechanism 17 has an inlet and an outlet. The inlet guides the cooling water to the cooling chamber of the inner cooling cylinder 3 through the connected input liquid channel 122, and the outlet is connected to the output liquid channel 123 to discharge the cooled cooling water from the cooling chamber of the inner cooling cylinder 3. The shaft body 121 is rotatably mounted to the fixed frame 8 through an external bearing. The outer side of the outer cooling cylinder 2 is symmetrically provided with an input pipe and an output pipe. Coolant is input into the cooling chamber of the outer cooling cylinder 2 through the input pipe and discharged through the output pipe.

[0046] The input liquid channel 122 in the distribution control shaft 12 is located at one end of the outer end of the shaft body 121 and the other end is located on the outer side of the shaft body 121. Both ends of the output liquid channel 123 are located on the outer side of the shaft body 121, and the outer end of the output liquid channel 123 is connected to the middle chamber of the conduction mechanism 17, so as to ensure that the cooled ice water can be discharged in a directional manner during the rotation. Here, the distribution control shaft 12 has both a cooling ice water inlet channel and a discharge channel to realize the import and export.

[0047] The magnetic adjustment mechanism includes an assembly ring 14, an electromagnet 15, and a trigger 16. The assembly ring 14 is fixed on the outer surface of the shaft 121 and located in the fixed frame 8. The electromagnet 15 is fixedly nested on the assembly ring 14. The trigger 16 is fixedly nested at the end of the fixed frame 8 and located on the rotation path of the electromagnet 15. When the trigger 16 contacts one end of the electromagnet 15, it controls the electromagnet 15 to start and generate magnetic attraction, and the metal baffle 6 on the adsorption side moves closer, causing the cooling inner cylinder 3 to move laterally.

[0048] The magnetic adjustment mechanism generates strong magnetic force intermittently during rotation and magnetically attracts the metal baffle 6 to achieve movement control of the cooling inner cylinder 3.

[0049] The drive mechanism 13 includes a motor, a first gear and a second gear. The output shaft of the motor is fixedly sleeved with the first gear, and the second gear is fixedly sleeved on the outer surface of the shaft 121, and the second gear is meshed with the first gear.

[0050] The drive mechanism 13 is powered by a motor and works with gear one and gear two to control the rotation of shaft 121.

[0051] The collection section 7 includes a collection box 71 and a guide pipe 72. One end of the guide pipe 72 is connected to the collection box 71, and the other end of the guide pipe 72 passes through the bottom of the cooling outer cylinder 2 and is connected to the bottom of the first spiral groove 4.

[0052] The collection section 7 collects the condensed propionaldehyde liquid. The end of the collection box 71 is equipped with a sealing plug, which can be opened to discharge the liquid.

[0053] The outer surface of the shaft 121 is spirally fitted with two sets of locking rings 21, one end of the cooling outer cylinder 2 is provided with an adapter ring groove, one end of the rotating frame 9 is rotatably fitted into the adapter ring groove, and the rotating frame 9 is clamped and fixed to the outside of the shaft 121 by the two sets of locking rings 21, so that the rotating frame 9 follows the shaft 121 to rotate.

[0054] The rotating frame 9 is fixed and locked on the outer surface of the shaft 121 by two sets of locking rings 21, which enable it to rotate with the shaft. A sealing ring is provided in the adapter ring groove to maintain the rotation of the dynamic seal.

[0055] The base 1 has a movable adsorption treatment box 18 on its top. The rotating frame 9 has a conduction locking mechanism 22 at its end. The rotating frame 9 is detachably connected to the stirring distribution part 19 through the conduction locking mechanism 22. When the distribution control shaft 12 drives the rotating frame 9 to rotate, the stirring distribution part 19 stirs the adsorption packing inside the adsorption treatment box 18 and releases the exhaust gas at the same time. The adsorption treatment box 18 includes a storage box 181 and an intermediate plate 182. The intermediate plate 182 is located at the end of the storage box 181 and is used to store the adsorption packing. An annular gap is formed at the end of the storage box 181. The intermediate plate 182 is supported by a connecting rod in the storage box 181. An air outlet is provided at the other end of the storage box 181. The stirring and distributing part 19 includes a connecting pipe 191 and a side hole 192. The connecting pipe 191 rotates along the annular gap. The side hole 192 is opened on the outer side of the connecting pipe 191. The outer side of the connecting pipe 191 is also provided with a stirring plate located in the storage box 181. A moving adjustment part 20 is provided on the base 1. The moving adjustment part 20 controls the adsorption treatment box 18 to be misaligned with the cooling outer cylinder 2.

[0056] The annular gap provides a rotation path for the connecting pipe 191, and a sealing plate is provided on the outside of the connecting pipe 191. This allows the sealing plate to contact the annular gap during rotation, maintaining a seal and ensuring that the exhaust gas after adsorption is directionally discharged along the outlet. The stirring plate rotates around the outside of the connecting rod to achieve comprehensive stirring.

[0057] The movable adjustment unit 20 has an electric push rod and a slide groove. The electric push rod drives the slide at the bottom of the storage box 181 to move along the arc groove, realizing forward and backward movement. Through the movement misalignment, space is reserved for the removal of the rotating frame 9 and the cooling inner cylinder 3.

[0058] The working principle and usage process of this invention are as follows: During use, the propionaldehyde exhaust gas to be treated is input along the end of the fixed frame 8. The exhaust gas is input into the fixed frame 8 along the combined spiral condensation channel, and then discharged along the spiral condensation channel and the rotating frame 9 at the other end to the connected stirring and distributing section 19. Simultaneously, cooling ice water is input into the cooling chamber of the outer cooling cylinder 2 through the inlet pipe, and another portion of cooling ice water is input into the input liquid channel 122 of the distribution control shaft 12 through the inlet of the conducting mechanism 17, filling the cooling chamber of the inner cooling cylinder 3. As the exhaust gas is transported in the spiral condensation channel and exchanges heat with the cooling chambers on both the inner and outer sides, condensation is completed, and the gas enters the connecting pipe 191. The condensed exhaust gas is input into the storage tank 181 of the adsorption treatment box 18 through the side hole 192, and after adsorption by the adsorption packing, it is discharged along the gas outlet at the end of the storage tank 181. After the exhaust gas is condensed, it is then subjected to adsorption treatment. When the condensation treatment is performed, the drive mechanism 13 is activated. The drive mechanism 13 controls the rotation of the distribution control shaft 12 through the meshing gear one and gear two. When the shaft 121 rotates, it drives the assembly ring 14 in the magnetic adjustment mechanism to rotate. As the assembly ring 14 drives the installed electromagnet 15 to rotate, the electromagnet 15 intermittently contacts the trigger 16 during the rotation process and intermittently generates a strong magnetic force. When a strong magnetic force is generated, it magnetically attracts the metal baffle 6, driving the cooling inner cylinder 3 along the shaft. The outer side of body 121 slides, and during the sliding, the second spiral groove 5 on the outer side of the cooling inner cylinder 3 is misaligned with the first spiral groove 4 on the inner wall of the cooling outer cylinder 2, causing the spiral condensation channel to split. As the first spiral groove 4 and the second spiral groove 5 gradually misalign, the inner diameter of the channel that actually delivers the exhaust gas changes, and the exhaust gas is disturbed in the formed connecting channel. When the first spiral groove 4 and the second spiral groove 5 are completely misaligned, the volume of the original condensation channel is halved, and the exhaust gas located in the second spiral groove 5 is sealed and stored, extending the condensation time with the outer cooling ice water during storage. As the second spiral groove 5 reciprocates and resets, the exhaust gas continuously delivered in the spiral condensation channel is continuously and randomly captured and sealed by the second spiral groove 5, and continuously... The gas is trapped in the condensation area to achieve extended condensation. As the drive mechanism 13 drives the distribution control shaft 12 to rotate, the rotating distribution control shaft 12 drives the outer locking and fixed rotating frame 9 to rotate. The rotating frame 9 is fixed to the connecting pipe 191 through the end conduction locking mechanism 22, so that when the rotating frame 9 rotates, it drives the connecting pipe 191 to rotate. The connecting pipe 191 rotates in the annular intermittent at the end of the storage box 181. As the connecting pipe 191 rotates, on the one hand, the stirring plate on the outside of the connecting pipe 191 stirs the adsorbed particles filled inside the storage box 181. On the other hand, the rotating connecting pipe 191 causes the side hole 192 to dynamically discharge the condensed tail gas into the adsorbed particles, thus completing dynamic adsorption.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A propionaldehyde distillation tail gas treatment device, comprising a base (1), characterized in that: The top of the base (1) is fixedly provided with a cooling outer cylinder (2), and a cooling inner cylinder (3) is movably sleeved inside the cooling outer cylinder (2). A spiral condensation channel is provided between the cooling outer cylinder (2) and the cooling inner cylinder (3). The cooling outer cylinder (2) and the cooling inner cylinder (3) are both provided with cooling chambers located outside the spiral condensation channel. Metal baffles (6) are provided at both ends of the cooling inner cylinder (3). A fixed air inlet is provided at one end of the cooling outer cylinder (2). A distribution control shaft (12) is movably sleeved inside the cooling inner cylinder (3). A movable air outlet is detachably installed on the outer surface of the distribution control shaft (12). The cooling inner cylinder (3) is elastically positioned between the fixed air inlet and the movable air outlet. The exhaust gas is discharged through the fixed air inlet, the spiral condensation channel and the movable air outlet. A collection part (7) communicating with the spiral condensation channel is provided at the bottom of the cooling outer cylinder (2). A magnetic adjustment mechanism is provided between the distribution control shaft (12) and the fixed air inlet end. A drive mechanism (13) is provided at the end of the cooling outer cylinder (2). The drive mechanism (13) controls the distribution control shaft (12) to rotate, and controls the cooling inner cylinder (3) to move back and forth through the magnetic adjustment mechanism when the distribution control shaft (12) rotates, so that the spiral condensation channel splits back and forth and is partially sealed back and forth.

2. The propionaldehyde distillation tail gas treatment equipment according to claim 1, characterized in that: The spiral condensation channel includes a first spiral groove (4) and a second spiral groove (5). The first spiral groove (4) is located on the inner wall of the outer cooling cylinder (2), and the second spiral groove (5) is located on the outer side of the inner cooling cylinder (3).

3. The propionaldehyde distillation tail gas treatment equipment according to claim 2, characterized in that: The fixed air inlet end is a fixed frame (8), and the movable air outlet end is a rotating frame (9). Both the fixed frame (8) and the rotating frame (9) are fitted with a sealing frame (10). The fixed frame (8) is fixedly connected with a spring (11). The cooling inner cylinder (3) abuts against the springs (11) on both sides through the metal baffle (6) at the end. The fixed frame (8) is provided with an air inlet pipe at the outer end, and the rotating frame (9) is provided with a conduction locking mechanism (22) at the outer end.

4. The propionaldehyde distillation tail gas treatment equipment according to claim 3, characterized in that: The distribution control shaft (12) includes a shaft body (121), an input liquid channel (122), and an output liquid channel (123). The input liquid channel (122) and the output liquid channel (123) are both located inside the shaft body (121). The outer end of the distribution control shaft (12) is also provided with a guiding mechanism (17). The guiding mechanism (17) is provided with an inlet and an outlet. The inlet guides the cooling ice water to the cooling chamber of the inner cooling cylinder (3) through the connected input liquid channel (122), and the outlet is connected to the output liquid channel (123) to export the cooled ice water from the cooling chamber of the inner cooling cylinder (3). The shaft body (121) is rotatably installed with the fixed frame (8) through an external bearing. The outer side of the outer cooling cylinder (2) is symmetrically provided with an input pipe and an output pipe. Cooling liquid is input into the cooling chamber of the outer cooling cylinder (2) through the input pipe and exported through the output pipe.

5. The propionaldehyde distillation tail gas treatment equipment according to claim 4, characterized in that: The magnetic adjustment mechanism includes an assembly ring (14), an electromagnet (15), and a trigger (16). The assembly ring (14) is fixed on the outer surface of the shaft (121) and located in the fixed frame (8). The electromagnet (15) is fixedly nested on the assembly ring (14). The trigger (16) is fixedly nested at the end of the fixed frame (8) and located on the rotation path of the electromagnet (15). When the trigger (16) contacts one end of the electromagnet (15), it controls the electromagnet (15) to start and generate magnetic attraction, and the metal baffle (6) on the adsorption side moves closer, causing the cooling inner cylinder (3) to move laterally.

6. The propionaldehyde distillation tail gas treatment equipment according to claim 5, characterized in that: The drive mechanism (13) includes a motor, a first gear and a second gear. The output shaft of the motor is fixedly sleeved with the first gear, and the second gear is fixedly sleeved on the outer surface of the shaft (121), and the second gear meshes with the first gear.

7. The propionaldehyde distillation tail gas treatment equipment according to claim 6, characterized in that: The collection section (7) includes a collection box (71) and a guide pipe (72). One end of the guide pipe (72) is connected to the collection box (71), and the other end of the guide pipe (72) passes through the bottom of the cooling outer cylinder (2) and is connected to the bottom of the first spiral groove (4).

8. The propionaldehyde distillation tail gas treatment equipment according to claim 7, characterized in that: Two sets of locking rings (21) are spirally sleeved on the outer surface of the shaft (121). One end of the cooling outer cylinder (2) is provided with an adapter ring groove. One end of the rotating frame (9) is rotatably sleeved in the adapter ring groove, and the rotating frame (9) is clamped and fixed to the outside of the shaft (121) by the two sets of locking rings (21), so that the rotating frame (9) rotates with the shaft (121).

9. The propionaldehyde distillation tail gas treatment equipment according to claim 8, characterized in that: The top of the base (1) is also provided with a movable adsorption treatment box (18), and the end of the rotating frame (9) is provided with a conduction locking mechanism (22). The rotating frame (9) is detachably connected to the stirring distribution part (19) through the conduction locking mechanism (22). When the distribution control shaft (12) drives the rotating frame (9) to rotate, the stirring distribution part (19) stirs the adsorption packing inside the adsorption treatment box (18) and releases the exhaust gas at the same time.

10. The propionaldehyde distillation tail gas treatment equipment according to claim 9, characterized in that: The adsorption treatment box (18) includes a storage box (181) and an intermediate plate (182). The intermediate plate (182) is located at the end of the storage box (181) and forms an annular gap at the end of the storage box (181) through the intermediate plate (182). The intermediate plate (182) is supported by a connecting rod in the storage box (181). The other end of the storage box (181) is provided with an air outlet. The stirring distribution part (19) includes a connecting pipe (191) and a side hole (192). The connecting pipe (191) rotates along the annular gap. The side hole (192) is opened on the outer side of the connecting pipe (191). The outer side of the connecting pipe (191) is also provided with a stirring plate located in the storage box (181). The base (1) is provided with a moving adjustment part (20). The moving adjustment part (20) controls the adsorption treatment box (18) and the cooling outer cylinder (2) to be misaligned.

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