Drying agent regeneration system and method for system mixed gas

Abstract

The invention discloses a desiccant regeneration system and method for system mixed gas, and relates to the technical field of desiccant regeneration, the desiccant regeneration system comprises a supporting seat of which the side wall is fixedly provided with a control panel, a drying tank welded on the outer wall of the upper part of the supporting seat, and a conveying cylinder fixedly communicated with the upper part of the drying tank; a spiral feeding device is arranged on the conveying cylinder, and a material turning type drying device is arranged on the drying tank. The desiccant regeneration method comprises the following steps: continuously feeding waste desiccant particles into a drying tank by using a spiral feeding device, and continuously feeding hot air into the drying tank to dry the entered waste desiccant particles through the cooperation of an air heater and a switching mechanism; and two spiral material turning blades on two hollow shafts are driven by a driving mechanism to rotate to fully turn the waste drying agent particles in the drying tank, so that the situation that the waste drying agent particles are locally accumulated is avoided, and full and uniform contact between the waste drying agent particles and hot air is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of desiccant regeneration, and in particular to a desiccant regeneration system and method for system mixed gas. Background Art

[0002] In the reaction system of olefin mixture, a large amount of desiccant is usually used to remove moisture to prevent excessive moisture content from affecting the reaction system of olefin mixture. After a period of use, the desiccant can no longer be used because it absorbs a large amount of moisture. In order to avoid directly discarding a large amount of used waste desiccant and causing a waste of resources, it is usually necessary to use desiccant drying and regeneration equipment to remove moisture from the waste desiccant so that it can be recycled and reused. However, the existing desiccant regeneration system has the following problems during use:

[0003] First, the heat distribution of traditional desiccant regeneration equipment is often uneven during the drying process, which causes some desiccant to be insufficiently dried, affecting the regeneration effect and reducing the reuse efficiency of the desiccant.

[0004] Secondly, most equipment lacks an effective humidity monitoring and regulation mechanism. During the drying and regeneration process of the desiccant, inaccurate humidity control will prevent the desiccant's performance from being fully restored to its optimal state, and may cause over-drying, resulting in damage to the desiccant structure. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a system and method for regenerating a desiccant for a system mixed gas.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A system mixed gas desiccant regeneration system, comprising a support base with a control panel fixedly mounted on the side wall, a drying tank welded to the upper outer wall of the support base, and a conveying cylinder fixedly connected to the upper part of the drying tank, wherein a spiral feeding device is provided on the conveying cylinder, and a turning drying device is provided on the drying tank;

[0008] The material turning drying device comprises a driving mechanism, a switching mechanism, a moisture removal mechanism, two hollow shafts vertically and sequentially mounted on the top of the drying tank, two spiral material turning blades symmetrically welded on the outer walls of the two hollow shafts, a fan support welded to the outer wall of the top of the drying tank, an intelligent hot air blower fixed to the outer wall of the top of the fan support by bolts, and a fixed cover sealed and fixed to the outer wall of the top of the drying tank;

[0009] The driving mechanism comprises a driving motor fixed to the middle outer wall of the top of the fixed cover by bolts, a driving gear fixedly sleeved on the output shaft of the driving motor, and two transmission gears fixedly sleeved on the upper parts of the two hollow shafts in sequence.

[0010] Preferably, the top ends of the two hollow shafts are connected to the top inner wall of the fixed cover through a sealing bearing, and the surfaces of the two hollow shafts are provided with evenly distributed blowing holes.

[0011] Preferably, the output shaft of the driving motor passes through the top of the fixed cover, the driving gear and the two transmission gears are both located in the fixed cover, the driving gear is located between the two transmission gears, and the two transmission gears are both meshed with the driving gear.

[0012] Preferably, the adapter mechanism includes two rotary joints and a three-way pipe, the rotating ends of the two rotary joints are respectively sealed and fixedly connected to the top ends of the two hollow shafts, one end of the three-way pipe is sealed and fixedly connected to the air outlet end of the intelligent hot air blower, and the fixed ends of the two rotary joints are respectively sealed and fixedly connected to the other two ends of the three-way pipe.

[0013] Preferably, the dehumidification mechanism includes a vent hole opened at the top center of the drying tank, a dehumidification fan blade fixedly mounted on the bottom end of the drive motor output shaft and located in the vent hole, a dehumidification pipe fixedly connected to one side of the fixed cover, and a humidity sensor fixedly installed in the dehumidification pipe.

[0014] Preferably, the two spiral turning blades have opposite spiral directions, and both spiral turning blades are located in the drying tank.

[0015] Preferably, the bottom of the drying tank is fixedly connected to a discharge pipe, a solenoid valve is installed on the discharge pipe, and a receiving box located below the discharge pipe is placed at the bottom of the support seat.

[0016] Preferably, the spiral feeding device includes a support plate welded to the side wall of the conveying cylinder, a conveying motor fixed to the top outer wall of the support plate by bolts, a transmission shaft rotatably installed in the conveying cylinder, spiral conveying blades welded to the outer wall of the transmission shaft, and a feed hopper fixedly connected to one end of the top of the conveying cylinder, and the output shaft of the conveying motor is coaxially fixedly connected to one end of the transmission shaft through a coupling.

[0017] The present invention also provides a method for regenerating a desiccant for a system mixed gas, which comprises the following steps:

[0018] S1: Use a spiral feeding device to continuously feed the waste desiccant particles into the drying tank, and through the cooperation of the hot air blower and the transfer mechanism, continuously feed hot air into the drying tank to dry the waste desiccant particles entering;

[0019] S2: The driving mechanism drives two spiral turning blades on two hollow shafts to rotate and fully turn the waste desiccant particles in the drying tank to avoid local accumulation of waste desiccant particles and ensure full and uniform contact between the waste desiccant particles and the hot air;

[0020] S3: During the drying process, the moisture generated is discharged to the outside through the dehumidification mechanism, and the humidity of the exhaust gas is monitored in real time through the humidity sensor. According to the data fed back by the humidity sensor, the connected control panel will control the operation of the intelligent hot air blower, flexibly adjust the drying temperature and ventilation volume, so as to achieve precise humidity control;

[0021] S4: When the humidity sensor detects that the humidity of the dried desiccant particles reaches a predetermined value, the material-turning drying device is closed and the solenoid valve is opened to discharge the dried desiccant particles into the receiving box for collection, thereby completing the drying and regeneration process of the waste desiccant particles.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention drives two spiral turning blades on two hollow shafts to rotate through a driving mechanism to fully turn over the waste desiccant particles in the drying tank, thereby avoiding local accumulation of the waste desiccant particles and facilitating full and uniform contact between the waste desiccant particles and the hot air, so that the waste desiccant particles can be fully dried, ensuring the subsequent regeneration effect, thereby improving the reuse efficiency of the desiccant;

[0024] 2. During the dehumidification process, the present invention monitors the humidity of the exhaust gas in real time through the humidity sensor. According to the data fed back by the humidity sensor, the connected control panel will control the operation of the intelligent hot air blower and flexibly adjust the drying temperature and ventilation volume, so as to accurately control the drying humidity of the desiccant, ensure that the desiccant reaches the optimal performance state after regeneration, and extend the service life of the desiccant. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the vertical section of the conveying cylinder and the drying tank of the present invention;

[0028] Figure 3It is a three-dimensional enlarged structural schematic diagram of the top area of ​​the drying tank of the present invention;

[0029] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the vertical section of the connection between the fixed cover and the drying tank of the present invention;

[0030] Figure 5 It is a three-dimensional enlarged structural schematic diagram of a local part of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of two spiral material turning blades in the drying rod tank of the present invention.

[0032] In the figure: 1. Support seat; 2. Drying tank; 3. Conveying cylinder; 4. Hollow shaft; 5. Spiral turning blades; 6. Fan support; 7. Intelligent hot air blower; 8. Fixed cover; 9. Driving motor; 10. Driving gear; 11. Transmission gear; 12. Rotary joint; 13. Three-way pipe; 14. Dehumidification fan blades; 15. Dehumidification pipe; 16. Humidity sensor; 17. Support plate; 18. Conveying motor; 19. Transmission shaft; 20. Spiral conveying blades; 21. Feed hopper; 22. Solenoid valve; 23. Receiving box; 24. Control panel. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0034] Reference Figure 1-6 This embodiment discloses a desiccant regeneration system for system mixed gas, which includes a support base 1 with a control panel 24 fixedly mounted on the side wall, a drying tank 2 welded to the upper outer wall of the support base 1, and a conveying cylinder 3 fixedly connected to the upper part of the drying tank 2;

[0035] In this embodiment, a spiral feeding device is provided on the conveying cylinder 3, which includes a support plate 17 welded to the side wall of the conveying cylinder 3, a conveying motor 18 fixed to the outer wall of the top of the support plate 17 by bolts, a transmission shaft 19 rotatably installed in the conveying cylinder 3, a spiral conveying blade 20 welded to the outer wall of the transmission shaft 19, and a feed hopper 21 fixedly connected to one end of the top of the conveying cylinder 3. The output shaft of the conveying motor 18 is coaxially fixedly connected to one end of the transmission shaft 19 through a coupling;

[0036] In this embodiment, the drying tank 2 is provided with a turning-type drying device, which includes a driving mechanism, a switching mechanism, a dehumidification mechanism, two hollow shafts 4 vertically and sequentially mounted on the top of the drying tank 2, two spiral turning blades 5 symmetrically welded on the outer walls of the two hollow shafts 4, a fan support 6 welded to the outer wall of the top of the drying tank 2, an intelligent hot air blower 7 fixed to the outer wall of the top of the fan support 6 by bolts, and a fixed cover 8 sealed and fixed to the outer wall of the top of the drying tank 2, and the intelligent hot air blower 7 is electrically connected to the control panel 24;

[0037] Furthermore, the driving mechanism includes a driving motor 9 fixed to the middle outer wall of the top of the fixed cover 8 by bolts, a driving gear 10 fixedly sleeved on the output shaft of the driving motor 9, and two transmission gears 11 fixedly sleeved on the upper parts of the two hollow shafts 4 in sequence;

[0038] Furthermore, the top ends of the two hollow shafts 4 are connected to the top inner wall of the fixed cover 8 through a sealed bearing, and the surfaces of the two hollow shafts 4 are provided with evenly distributed blowing holes, and the two spiral turning blades 5 have opposite spiral directions, and the two spiral turning blades 5 are both located in the drying tank 2;

[0039] Furthermore, the output shaft of the driving motor 9 passes through the top of the fixed cover 8, the driving motor 9 is electrically connected to the control panel 24, the driving gear 10 and the two transmission gears 11 are both located in the fixed cover 8, the driving gear 10 is located between the two transmission gears 11, and the two transmission gears 11 are both meshed with the driving gear 10;

[0040] Furthermore, the switching mechanism includes two rotating joints 12 and a three-way pipe 13. The rotating ends of the two rotating joints 12 are respectively sealed and fixedly connected to the top ends of the two hollow shafts 4. One end of the three-way pipe 13 is sealed and fixedly connected to the air outlet end of the intelligent hot air blower 7. The fixed ends of the two rotating joints 12 are respectively sealed and fixedly connected to the other two ends of the three-way pipe 13. Through the switching effect of the switching mechanism, it can be ensured that the fixedly deployed intelligent hot air blower 7 can normally transport hot air to the two rotating hollow shafts 4.

[0041] Furthermore, the dehumidification mechanism includes a vent hole opened at the center of the top of the drying tank 2, a dehumidification fan blade 14 fixedly sleeved on the bottom end of the output shaft of the driving motor 9 and located in the vent hole, a dehumidification pipe 15 fixedly connected to one side of the fixed cover 8, and a humidity sensor 16 fixedly installed in the dehumidification pipe 15, and the humidity sensor 16 is electrically connected to the control panel 24;

[0042] Furthermore, a discharge pipe is fixedly connected to the bottom of the drying tank 2 , a solenoid valve 22 is installed on the discharge pipe, and a receiving box 23 located below the discharge pipe is placed at the bottom of the support seat 1 .

[0043] This embodiment also provides a method for regenerating a system mixed gas desiccant, which comprises the following steps:

[0044] S1: Use a spiral feeding device to continuously feed the waste desiccant particles into the drying tank 2, and through the cooperation of a hot air blower and a switching mechanism, continuously feed hot air into the drying tank 2 to dry the waste desiccant particles entering;

[0045] S2: The two spiral turning blades 5 on the two hollow shafts 4 are driven by a driving mechanism to rotate and fully turn over the waste desiccant particles in the drying tank 2 to avoid local accumulation of the waste desiccant particles and ensure that the waste desiccant particles are fully and evenly contacted with the hot air;

[0046] S3: During the drying process, the generated moisture is discharged to the outside through the dehumidification mechanism. During the dehumidification process, the humidity of the exhaust gas is monitored in real time by the humidity sensor 16. According to the data fed back by the humidity sensor 16, the connected control panel 24 controls the operation of the intelligent hot air blower 7, flexibly adjusts the drying temperature and ventilation volume, so as to achieve precise humidity control;

[0047] S4: When the humidity sensor 16 detects that the humidity of the dried desiccant particles reaches a predetermined value, the material-turning drying device is closed and the solenoid valve 22 is opened to discharge the dried desiccant particles into the receiving box 23 for collection, thereby completing the drying and regeneration process of the waste desiccant particles.

[0048] The working method of the present invention is as follows: first, the waste desiccant particles to be dried and regenerated are added from the feed hopper 21 into the conveying cylinder 3, and at this time, the spiral conveying blades 20 on the transmission shaft 19 are driven by the conveying motor 18 to rotate and continuously deliver the waste desiccant particles into the drying tank 2;

[0049] Secondly, the intelligent hot air blower 7 conveys the hot air into the two hollow shafts 4 through the transfer mechanism. At this time, the hot air entering will be evenly diffused into the drying tank 2 from the evenly distributed blowing hole area, and the driving motor 9 controls the driving gear 10 to rotate. Then, the two transmission gears 11 meshed with the driving gear 10 will drive the two spiral turning blades 5 fixed on the outer walls of the two hollow shafts 4 to rotate at high speed. In this way, the waste desiccant particles in the drying tank 2 are fully turned over by the rotation of the two spiral turning blades 5 with opposite spiral directions, avoiding the local accumulation of the waste desiccant particles and ensuring that the waste desiccant particles are fully and evenly contacted with the hot air;

[0050] Next, the dehumidification fan blades 14 are driven by the driving motor 9 to rotate and discharge the generated moisture to the outside. When the moisture is continuously discharged from the dehumidification pipe 15, the internal humidity sensor 16 monitors the humidity of the exhaust gas in real time. According to the data fed back by the humidity sensor 16, the connected control panel 24 controls the operation of the intelligent hot air blower 7 to flexibly adjust the drying temperature and ventilation volume, that is, when the humidity is high, the temperature is appropriately increased and the ventilation volume is increased. When the humidity is close to the target value, the temperature and ventilation volume are reduced to achieve precise humidity control.

[0051] Finally, when the humidity sensor 16 detects that the humidity of the dried desiccant particles reaches a predetermined value, the material-turning drying device is closed and the solenoid valve 22 is opened to discharge the dried desiccant particles into the receiving box 23 for collection, thereby completing the drying and regeneration process of the waste desiccant particles.

[0052] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A system for regenerating a desiccant for a system mixed gas, comprising a support base (1) with a control panel (24) fixedly mounted on the side wall, a drying tank (2) welded to the upper outer wall of the support base (1), and a conveying cylinder (3) fixedly connected to the upper part of the drying tank (2), characterized in that: The conveying cylinder (3) is provided with a spiral feeding device, and the drying tank (2) is provided with a turning-type drying device; The material turning drying device comprises a driving mechanism, a switching mechanism, a moisture removal mechanism, two hollow shafts (4) vertically and sequentially mounted on the top of a drying tank (2), two spiral material turning blades (5) symmetrically welded to the outer walls of the two hollow shafts (4), a fan support (6) welded to the outer wall of the top of the drying tank (2), an intelligent hot air blower (7) fixed to the outer wall of the top of the fan support (6) by bolts, and a fixed cover (8) sealed and fixed to the outer wall of the top of the drying tank (2); The driving mechanism comprises a driving motor (9) fixed to the middle outer wall of the top of the fixed cover (8) by bolts, a driving gear (10) fixedly sleeved on the output shaft of the driving motor (9), and two transmission gears (11) fixedly sleeved on the upper parts of the two hollow shafts (4) in sequence.

2. A system for regenerating a desiccant for a system mixed gas according to claim 1, characterized in that: The top ends of the two hollow shafts (4) are connected to the top inner wall of the fixed cover (8) through a sealing bearing, and the surfaces of the two hollow shafts (4) are provided with evenly distributed blowing holes.

3. A system mixed gas desiccant regeneration system according to claim 1, characterized in that: The output shaft of the driving motor (9) passes through the top of the fixed cover (8); the driving gear (10) and the two transmission gears (11) are both located inside the fixed cover (8); the driving gear (10) is located between the two transmission gears (11), and the two transmission gears (11) are both meshed with the driving gear (10).

4. A system mixed gas desiccant regeneration system according to claim 1, characterized in that: The switching mechanism comprises two rotating joints (12) and a three-way pipe (13); the rotating ends of the two rotating joints (12) are respectively sealed and fixedly connected to the top ends of the two hollow shafts (4); one end of the three-way pipe (13) is sealed and fixedly connected to the air outlet end of the intelligent hot air blower (7); and the fixed ends of the two rotating joints (12) are respectively sealed and fixedly connected to the other two ends of the three-way pipe (13).

5. The system for regenerating a desiccant for a system mixed gas according to claim 1, characterized in that: The dehumidification mechanism comprises a vent hole opened at the center of the top of the drying tank (2), a dehumidification fan blade (14) fixedly sleeved on the bottom end of the output shaft of the driving motor (9) and located in the vent hole, a dehumidification pipe (15) fixedly connected to one side of the fixed cover (8), and a humidity sensor (16) fixedly installed in the dehumidification pipe (15).

6. A system mixed gas desiccant regeneration system according to claim 1, characterized in that: The two spiral material turning blades (5) have opposite spiral directions, and the two spiral material turning blades (5) are both located in the drying tank (2).

7. A system mixed gas desiccant regeneration system according to claim 1, characterized in that: The bottom of the drying tank (2) is fixedly connected to a discharge pipe, on which a solenoid valve (22) is installed, and a receiving box (23) located below the discharge pipe is placed at the bottom of the support seat (1).

8. The system for regenerating a desiccant for a system mixed gas according to claim 1, characterized in that: The spiral feeding device comprises a support plate (17) welded to the side wall of a conveying cylinder (3), a conveying motor (18) fixed to the outer wall of the top of the support plate (17) by bolts, a transmission shaft (19) rotatably mounted in the conveying cylinder (3), a spiral conveying blade (20) welded to the outer wall of the transmission shaft (19), and a feed hopper (21) fixedly connected to one end of the top of the conveying cylinder (3), and the output shaft of the conveying motor (18) is coaxially fixedly connected to one end of the transmission shaft (19) through a coupling.

9. A method for regenerating a desiccant for a system mixed gas, characterized in that: The following steps are involved: S1: using a spiral feeding device to continuously feed waste desiccant particles into a drying tank (2), and by cooperating with a hot air blower and a switching mechanism, continuously feeding hot air into the drying tank (2) to dry the waste desiccant particles entering; S2: The two spiral turning blades (5) on the two hollow shafts (4) are driven by a driving mechanism to rotate and fully turn over the waste desiccant particles in the drying tank (2), thereby avoiding local accumulation of the waste desiccant particles and ensuring full and uniform contact between the waste desiccant particles and the hot air; S3: During the drying process, the generated moisture is discharged to the outside through the dehumidification mechanism, and during the dehumidification process, the humidity of the exhaust gas is monitored in real time through the humidity sensor (16). According to the data fed back by the humidity sensor (16), the connected control panel (24) controls the operation of the intelligent hot air blower (7), flexibly adjusts the drying temperature and ventilation volume, so as to achieve accurate humidity control; S4: When the humidity sensor (16) detects that the humidity of the dried desiccant particles reaches a predetermined value, the material-turning drying device is closed and the solenoid valve (22) is opened to discharge the dried desiccant particles into the receiving box (23) for collection, thereby completing the drying and regeneration process of the waste desiccant particles.

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