A molecular sieve drying equipment below boiling point under positive pressure environment

Abstract

The present invention discloses a molecular sieve drying device below the boiling point under a positive pressure environment, which relates to the field of three-dose catalyst waste gas treatment, including an equipment main body and a molecular tank, two groups of molecular tanks are movably installed inside the equipment main body, an air inlet pipe is installed at one end of the equipment main body, a guide plate is installed inside the equipment main body, a first air supply pipe is installed at one end of the guide plate, a first fixed plate and a second fixed plate are installed inside the equipment main body, a first reserved hole is provided at one end of the first fixed plate, and an air inlet and an air outlet are respectively provided at both ends of the two groups of molecular bins. The present invention sets molecular tanks and molecular bins, and after the waste gas enters the interior of the equipment main body, the two groups of molecular tanks alternately dry the waste gas, and at the same time, the molecular sieves inside the two groups of molecular bins alternately undergo hot air drying treatment, thereby improving the service life of the molecular sieves, reducing the number of molecular sieve drying equipment, avoiding the setting of double towers or triple towers, and reducing the cost of three-dose catalyst waste gas treatment.

Description

Technical Field

[0001] The invention relates to the field of three-dose catalyst waste gas treatment, in particular to a molecular sieve drying device below the boiling point under a positive pressure environment. Background Art

[0002] In the chemical, petrochemical and other industries, the catalysts in the "three agents" (catalysts, solvents, and additives) will generate waste gas during production, use (such as catalytic reactions) or regeneration. The composition of this type of waste gas is complex and may contain volatile organic compounds, dust, acid and alkali gases, heavy metals (such as platinum, palladium, nickel and other catalyst carriers or active components), nitrogen oxides, sulfides, etc., and targeted treatment is required to meet environmental emission standards. Before waste gas treatment, the waste gas needs to be pretreated to remove particulate matter and simple pollutants. The purpose of pretreatment is to reduce the load on subsequent equipment and avoid blockage or poisoning. Then, the core pollutants in the waste gas are removed in a targeted manner. Finally, the waste gas is subjected to deep purification technology to ensure that it meets emission standards.

[0003] In the three-dose catalyst waste gas treatment process, the molecular sieve drying equipment is an intermediate purification link. The molecular sieve drying equipment is mainly used for the dehydration purification link before the waste gas enters the "targeted removal of core pollutants in the waste gas". It is a purification step after pretreatment. Its core function is to remove moisture (humidity) in the waste gas to avoid high humidity from having a negative impact on the efficiency and stability of subsequent treatment processes.

[0004] In the existing technology, molecular sieve drying equipment is generally configured with two or three towers to achieve continuous operation, and the volume of each tower needs to match the exhaust gas treatment capacity. For example, a drying tower that treats 10,000 m³ / h of exhaust gas can be 1-2 meters in diameter and 5-8 meters in height. The overall footprint is large and is not suitable for scenarios with limited space. Although two or three towers achieve continuous operation of the molecular sieve drying equipment, they increase the cost of treating the three-dose catalyst exhaust gas. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a molecular sieve drying device below the boiling point under a positive pressure environment to solve the technical problems in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a molecular sieve drying device below boiling point under positive pressure environment, comprising a device body and a molecular tank, wherein two groups of molecular tanks are movably installed inside the device body, and the two groups of molecular tanks are fixedly connected;

[0007] An air inlet pipe is installed at one end of the device body, a guide plate is installed inside the device body, and the guide plate is inclined, a first air supply pipe is installed at one end of the guide plate, a first fixing plate and a second fixing plate are installed inside the device body, and two groups of molecular tanks are arranged between the first fixing plate and the second fixing plate, a first reserved hole is opened at one end of the first fixing plate, and the first reserved hole is connected to one end of the first air supply pipe, a second reserved hole is opened at one end of the second fixing plate, an air outlet is opened at the upper end of the device body, an air outlet pipe is installed at one end of the air outlet, an air guide hole and an air supply hole are opened at the upper end of the two groups of molecular tanks, and one group of air guide holes and one group of air supply holes are movably connected to the second reserved hole;

[0008] Both groups of molecular tanks are provided with an air inlet compartment, a molecular compartment and an installation compartment. One group of the air inlet compartments is movably connected to the first reserved hole. Both ends of the two groups of molecular compartments are provided with an air inlet and an air outlet. Two groups of air inlet pipes and two groups of air outlet pipes are respectively installed on the outer wall of the equipment body, and the two groups of air inlet pipes and the two groups of air outlet pipes are staggered. Both groups of air inlet pipes are externally connected to a hot air blower.

[0009] By adopting the above technical solution, the problem of high cost of three-dose catalyst exhaust gas treatment is solved. After the exhaust gas enters the main body of the equipment, the two groups of molecular tanks alternately dry the exhaust gas, and at the same time, the molecular sieves inside the two groups of molecular bins are alternately dried with hot air, which improves the service life of the molecular sieve and reduces the number of molecular sieve drying equipment, avoids the setting of double or triple towers, and reduces the cost of three-dose catalyst exhaust gas treatment.

[0010] The present invention is further configured such that a movable shaft is provided inside the first air supply pipe, and a wind wheel is installed on the outer wall of the movable shaft.

[0011] Preferably, the exhaust gas enters the first gas transmission block, drives the wind wheel to rotate, and thus drives the movable shaft to rotate.

[0012] The present invention is further configured such that a plurality of groups of movable cylinders are movably mounted on the bottom end of the first fixed plate, and the plurality of groups of movable cylinders are connected by toothed synchronous belts respectively, and a group of the movable cylinders is connected to the movable shaft by a toothed synchronous belt.

[0013] Preferably, the movable shaft rotates, driving one group of movable cylinders to rotate, thereby driving multiple groups of movable cylinders to rotate.

[0014] The present invention is further configured such that a movable plate is movably mounted on the bottom end of the guide plate, a convex ring is mounted on the upper end of the movable plate, and the convex ring is movably connected to the inner wall of the guide plate.

[0015] Preferably, the provision of the convex ring prevents exhaust gas from entering between the movable plate and the guide plate.

[0016] The present invention is further configured such that a plurality of groups of movable columns are installed on the upper end of the movable plate, springs are installed on the upper ends of the plurality of groups of movable columns, and the plurality of groups of springs are connected to the inner wall of the guide plate.

[0017] Preferably, when the movable plate is displaced, the spring pulls the movable column to reset, thereby driving the movable plate to reset.

[0018] The present invention is further configured such that multiple groups of the inner walls of the movable cylinders are movably installed with telescopic columns, and one ends of the multiple groups of telescopic columns are movably connected to the outer walls of the movable plates, multiple groups of the inner walls of the movable cylinders are provided with reciprocating thread grooves, and the outer walls of the multiple groups of telescopic columns are provided with protrusions movably connected to the inner walls of the reciprocating thread grooves.

[0019] Preferably, the multiple groups of movable cylinders rotate to drive the multiple groups of telescopic columns to move, and the multiple groups of telescopic columns knock on the movable plate, causing the movable plate to vibrate or move slightly.

[0020] The present invention is further configured such that a sewage outlet is provided at the bottom end of the equipment body, a sewage pipe is installed at one end of the sewage outlet, and one end of the sewage pipe is externally connected to a waste recovery device.

[0021] As a preferred embodiment, the dust and moisture adhering to the bottom of the movable plate fall off and fall to the sewage outlet, and the dust and moisture are discharged into the waste recovery device through the sewage pipe.

[0022] The present invention is further configured such that partitions are provided between the two groups of air inlet bins and the two groups of molecular bins respectively, and grids are installed on the inner walls of the two groups of air inlets and the two groups of air outlets.

[0023] Preferably, molecular sieves are placed inside the two groups of molecular bins, and the partitions and grids block the molecular sieves to prevent them from falling to the outer ends of the molecular bins.

[0024] The present invention is further configured such that a second gas pipe is installed inside each of the two groups of installation bins, and one end of the two groups of second gas pipes is respectively connected to two groups of gas holes, one group of gas holes is connected to another group of molecular bins, and the other group of second gas pipes is connected to a group of gas guide holes.

[0025] Preferably, the exhaust gas enters another group of air intake chambers through a group of second air delivery pipes and a group of air delivery holes.

[0026] The present invention is further configured such that a drive motor is mounted on the upper end of the guide plate, a drive shaft is installed on the output end of the drive motor, the outer wall of the drive shaft is fixedly connected to the inner walls of the two groups of molecular tanks, and the outer wall of the drive shaft is movably connected to the inner wall of the first fixed plate, the inner walls of the two groups of air guide holes are both arranged at the upper ends of the two groups of molecular bins, the inner walls of the two groups of air guide holes are both provided with gas humidity detection devices, and the two groups of gas humidity detection devices are both electrically connected to the drive motor.

[0027] Preferably, the exhaust gas after drying flows through the air guide holes, and the gas humidity detection device detects the circulating exhaust gas. If the exhaust gas drying effect decreases, the gas humidity detection device is electrically connected to the drive motor, and the gas humidity detection device starts the drive motor. The drive motor drives the drive shaft to rotate, and the drive shaft drives the two groups of molecular tanks to rotate.

[0028] In summary, the present invention mainly has the following beneficial effects:

[0029] The present invention solves the problem of high cost of treating three-dose catalyst exhaust gas by providing molecular tanks and molecular bins. After the exhaust gas enters the main body of the equipment, the two groups of molecular tanks alternately dry the exhaust gas, and at the same time, the molecular sieves inside the two groups of molecular bins are alternately dried with hot air, which improves the service life of the molecular sieves, reduces the number of molecular sieve drying equipment, avoids the setting of double towers or triple towers, and reduces the cost of treating three-dose catalyst exhaust gas.

[0030] The present invention is provided with a movable plate, a movable cylinder, a telescopic column, a movable column and a spring. The exhaust gas enters the interior of the equipment body through the air intake pipe. The exhaust gas first contacts the movable plate. The dust particles and part of the moisture remaining in the exhaust gas adhere to the bottom end of the movable plate. The multiple groups of movable cylinders rotate to drive the multiple groups of telescopic columns to move back and forth. One end of the multiple groups of telescopic columns knocks on the movable plate. After the movable plate moves downward, it drives the multiple groups of movable columns to move downward. After the multiple groups of telescopic columns move upward, the multiple groups of springs pull the multiple groups of movable columns to reset, thereby driving the movable plate to reset. The movable plate forms a back and forth movement, so that the dust and moisture adhered to the bottom end of the movable plate fall off, and the dust and moisture fall to the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the main body of the device in the present invention;

[0032] Figure 2 Schematic diagram of the air inlet pipe and the air outlet pipe in the present invention;

[0033] Figure 3 It is a side sectional view of the main body of the device in the present invention;

[0034] Figure 4 Schematic diagram of the first gas pipeline in the present invention;

[0035] Figure 5 It is a side sectional view of the first gas transmission pipe in the present invention;

[0036] Figure 6 Schematic diagram of the internal structure of the first gas pipeline in the present invention;

[0037] Figure 7 Schematic diagram of the movable plate in the present invention;

[0038] Figure 8 This is a schematic diagram of the connection between two groups of molecular tanks in the present invention;

[0039] Figure 9 Exploded diagram of two groups of molecular tanks in the present invention;

[0040] Figure 10 Schematic diagram of the internal structure of the molecular tank in the present invention.

[0041] Description of reference numerals:

[0042] 1. Equipment body; 2. Air inlet pipe; 3. Guide plate; 4. Movable plate; 5. Convex ring; 6. Movable column; 7. Spring; 8. First air supply pipe; 9. Movable shaft; 10. Wind wheel; 11. Movable cylinder; 12. Telescopic column; 13. First fixed plate; 14. First reserved hole; 15. Molecular tank; 16. Air inlet chamber; 17. Partition; 18. Molecular chamber; 19. Installation chamber; 20. Second air supply pipe; 21. Air inlet; 22. Air outlet; 23. Air guide hole; 24. Air supply hole; 25. Second fixed plate; 26. Second reserved hole; 27. Drive motor; 28. Drive shaft; 29. ​​Air outlet; 30. Air outlet pipe; 31. Sewage outlet; 32. Sewage pipe; 33. Air inlet pipe; 34. Air outlet pipe. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0044] The following describes an embodiment of the present invention based on its overall structure.

[0045] A molecular sieve drying equipment below boiling point under positive pressure, please refer to Figure 1 - Figure 10 , including a device body 1 and a molecular tank 15, two groups of molecular tanks 15 are movably installed inside the device body 1, and the two groups of molecular tanks 15 are fixedly connected;

[0046] An air inlet pipe 2 is installed at one end of the equipment main body 1, a guide plate 3 is installed inside the equipment main body 1, and the guide plate 3 is inclined, a first air supply pipe 8 is installed at one end of the guide plate 3, a first fixing plate 13 and a second fixing plate 25 are installed inside the equipment main body 1, and two groups of molecular tanks 15 are arranged between the first fixing plate 13 and the second fixing plate 25, a first reserved hole 14 is opened at one end of the first fixing plate 13, and the first reserved hole 14 is connected to one end of the first air supply pipe 8, a second reserved hole 26 is opened at one end of the second fixing plate 25, an air outlet 29 is opened at the upper end of the equipment main body 1, an air outlet pipe 30 is installed at one end of the air outlet 29, an air guide hole 23 and an air supply hole 24 are opened at the upper end of the two groups of molecular tanks 15, and one group of air guide holes 23 and one group of air supply holes 24 are movably connected to the second reserved hole 26. After the exhaust gas enters the interior of the equipment main body 1, the two groups of molecular tanks 15 alternately dry the exhaust gas;

[0047] Both groups of molecular tanks 15 are provided with an air inlet bin 16, a molecular bin 18 and an installation bin 19. One group of air inlet bins 16 is movably connected to the first reserved hole 14. An air inlet 21 and an air outlet 22 are respectively provided at both ends of the two groups of molecular bins 18. Two groups of air inlet pipes 33 and two groups of air outlet pipes 34 are respectively installed on the outer wall of the equipment body 1, and the two groups of air inlet pipes 33 and the two groups of air outlet pipes 34 are staggered. Both groups of air inlet pipes 33 are externally connected to a hot air blower. The molecular sieves inside the two groups of molecular tanks 15 are alternately dried with hot air, which improves the service life of the molecular sieves, reduces the number of molecular sieve drying equipment, avoids the setting of double or triple towers, and reduces the cost of treating the three-dose catalyst exhaust gas.

[0048] See also Figure 4 - Figure 6 A movable shaft 9 is set inside the first air pipe 8, and a wind wheel 10 is installed on the outer wall of the movable shaft 9. The exhaust gas enters the first air pipe 8, drives the wind wheel 10 to rotate, and thus drives the movable shaft 9 to rotate.

[0049] See also Figure 4 - Figure 7 A plurality of movable cylinders 11 are movably installed at the bottom end of the first fixed plate 13, and the plurality of movable cylinders 11 are connected by toothed synchronous belts respectively. A toothed synchronous belt is provided between one group of movable cylinders 11 and the movable shaft 9. When the movable shaft 9 rotates, it drives one group of movable cylinders 11 to rotate, thereby driving the plurality of movable cylinders 11 to rotate.

[0050] See also Figure 4 - Figure 7 A movable plate 4 is movably installed at the bottom end of the guide plate 3, and a convex ring 5 is installed at the upper end of the movable plate 4. The convex ring 5 is movably connected to the inner wall of the guide plate 3. The setting of the convex ring 5 prevents exhaust gas from entering between the movable plate 4 and the guide plate 3.

[0051] See also Figure 4 - Figure 7 , multiple groups of movable columns 6 are installed on the upper end of the movable plate 4, and springs 7 are installed on the upper ends of the multiple groups of movable columns 6, and the multiple groups of springs 7 are connected to the inner wall of the guide plate 3. When the movable plate 4 is displaced, the spring 7 pulls the movable column 6 to reset, thereby driving the movable plate 4 to reset.

[0052] See also Figure 4 - Figure 7 The inner walls of multiple groups of movable cylinders 11 are movably installed with telescopic columns 12, and one ends of multiple groups of telescopic columns 12 are movably connected to the outer wall of the movable plate 4. The inner walls of multiple groups of movable cylinders 11 are provided with reciprocating thread grooves, and the outer walls of multiple groups of telescopic columns 12 are provided with protrusions movably connected to the inner walls of the reciprocating thread grooves. The multiple groups of movable cylinders 11 rotate, driving the multiple groups of telescopic columns 12 to move, and the multiple groups of telescopic columns 12 knock on the movable plate 4, causing the movable plate 4 to vibrate or move slightly.

[0053] See also Figure 1 - Figure 3 A sewage outlet 31 is provided at the bottom of the equipment body 1, and a sewage pipe 32 is installed at one end of the sewage outlet 31, and one end of the sewage pipe 32 is externally connected to a waste recovery device. The dust and moisture attached to the bottom of the movable plate 4 fall off, and the dust and moisture fall into the sewage outlet 31. The dust and moisture are discharged into the waste recovery device through the sewage pipe 32.

[0054] See also Figure 9 - Figure 10 A partition 17 is provided between the two groups of air inlet bins 16 and the two groups of molecular bins 18 respectively. The inner walls of the two groups of air inlets 21 and the two groups of air outlets 22 are installed with grids. Molecular sieves are placed inside the two groups of molecular bins 18. The partition 17 and the grid block the molecular sieves to prevent them from falling to the outer end of the molecular bin 18.

[0055] See also Figure 9 , second gas pipes 20 are installed inside the two groups of installation bins 19, and one end of the two groups of second gas pipes 20 are respectively connected to two groups of gas holes 24, one group of gas holes 24 is connected to another group of molecular bins 18, and the other group of second gas pipes 20 is connected to a group of air guide holes 23. The exhaust gas enters the inside of another group of air inlet bins 16 through a group of second gas pipes 20 and a group of gas holes 24.

[0056] See also Figure 3 - Figure 9A driving motor 27 is mounted on the upper end of the guide plate 3, and a driving shaft 28 is installed on the output end of the driving motor 27. The outer wall of the driving shaft 28 is fixedly connected to the inner walls of the two groups of molecular tanks 15, and the outer wall of the driving shaft 28 is movably connected to the inner wall of the first fixed plate 13. The inner walls of the two groups of air guide holes 23 are both provided at the upper ends of the two groups of molecular bins 18. The inner walls of the two groups of air guide holes 23 are both provided with gas humidity detection devices, and the two groups of gas humidity detection devices are electrically connected to the driving motor 27. The exhaust gas after drying flows through the air guide holes 23, and the gas humidity detection device detects the circulating exhaust gas. If the exhaust gas drying effect decreases, the gas humidity detection device is electrically connected to the driving motor 27, and the gas humidity detection device starts the driving motor 27. The driving motor 27 drives the driving shaft 28 to rotate, and the driving shaft 28 drives the two groups of molecular tanks 15 to rotate.

[0057] The working principle of the present invention is as follows: when the worker uses the device to dehydrate and purify the exhaust gas, the exhaust gas enters the interior of the device body 1 through the air inlet pipe 2, and the exhaust gas first contacts the movable plate 4. The dust particles and some water remaining in the exhaust gas adhere to the bottom of the movable plate 4, and then the air flow enters the interior of the first air supply pipe 8, and the exhaust gas blows the wind wheel 10 to rotate;

[0058] When the wind wheel 10 rotates, it drives the movable shaft 9 to rotate. The movable shaft 9 is connected to a group of movable cylinders 11 through a toothed synchronous belt. A group of movable cylinders 11 rotates, and multiple groups of movable cylinders 11 are respectively provided with toothed synchronous belts to connect. Multiple groups of movable cylinders 11 rotate synchronously. The inner walls of the multiple groups of movable cylinders 11 are provided with reciprocating thread grooves, and the outer wall protrusions of the multiple groups of telescopic columns 12 are movably connected with the multiple groups of reciprocating thread grooves. Therefore, the multiple groups of telescopic columns 12 move back and forth. One end of the multiple groups of telescopic columns 12 knocks on the movable plate 4. After the movable plate 4 moves downward, it drives the multiple groups of movable columns 6 to move downward. After the multiple groups of telescopic columns 12 move upward, the multiple groups of springs 7 pull the multiple groups of movable columns 6 to reset, thereby driving the movable plate 4 to reset. The movable plate 4 forms a reciprocating reset movement, so that the dust and moisture attached to the bottom end of the movable plate 4 fall off, and the dust and moisture fall to the sewage outlet 31. The dust and moisture are discharged to the inside of the waste recovery device through the sewage pipe 32;

[0059] After the exhaust gas enters the first air pipe 8, the exhaust gas first air pipe 8 enters the inside of a group of air inlet bins 16, and then enters the inside of a group of molecular bins 18 through a group of partitions 17. The molecular sieve inside the group of molecular bins 18 absorbs the moisture in the exhaust gas, and the exhaust gas after drying enters the inside of a group of second air pipes 20 through a group of air guide holes 23. Then, the exhaust gas after drying is discharged to the upper end of the second fixed plate 25 through a group of air holes 24 and a group of second reserved holes 26. The exhaust gas after drying moves to the air outlet 29 and is discharged to the inside of the exhaust gas subsequent treatment device through the air outlet pipe 30;

[0060] After the molecular sieve inside a group of molecular bins 18 has dried the exhaust gas for a long time, a gas humidity detection device on the inner wall of a group of air guide holes 23 detects the circulating exhaust gas. If the exhaust gas drying effect decreases, the gas humidity detection device is electrically connected to the drive motor 27, and the gas humidity detection device starts the drive motor 27. The drive motor 27 drives the drive shaft 28 to rotate, and the drive shaft 28 drives the two groups of molecular tanks 15 to rotate, so that the other group of second gas pipes 20 moves to the upper end of the first reserved hole 14, and at the same time, the other group of air guide holes 23 moves to the lower end of the second reserved hole 26. The two groups of molecular tanks 15 respectively drive the two groups of air inlets 21 and the two groups of air outlets 22 to move, and one group of air inlets 21 and one group of air outlets 22 are respectively moved to one end of the air inlet pipe 33 and one end of the air outlet pipe 34, and the other group of air inlet 21 and the other group of air outlet 22 are respectively moved out of the other group of air inlet pipe 33 and the other group of air outlet pipe 34.

[0061] When the drive shaft 28 drives the two groups of molecular tanks 15 to move, the exhaust gas enters the other group of air inlet bins 16 through the other group of second air delivery pipes 20, and then enters the inside of the other group of molecular bins 18 through the other group of partitions 17. The molecular sieve inside the other group of molecular bins 18 absorbs the moisture in the exhaust gas. The dried exhaust gas flows through the other group of air guide holes 23, through the second reserved holes 26, to the upper end of the second fixed plate 25. The dried exhaust gas moves to the air outlet 29 and is discharged to the interior of the exhaust gas subsequent treatment device through the air outlet pipe 30.

[0062] The hot air is then discharged to the air outlet 34 through the air outlet 22 , and part of the hot air is discharged to the inside of a second air supply pipe 20 through the air guide holes 23 . However, the second fixing plate 25 blocks the air supply holes 24 , so the hot air is continuously discharged from the molecular compartment 18 through the air outlet 22 , and the hot air dries the molecular sieve inside the molecular compartment 18 , thereby drying the molecular sieve inside the molecular compartment 18 and improving the subsequent use effect of the molecular sieve. The two groups of molecular tanks 15 dry the exhaust gas alternately, and the molecular sieves inside the two groups of molecular compartments 18 are alternately dried with hot air, thereby improving the service life of the molecular sieve and reducing the number of molecular sieve drying equipment. This avoids the setting of double or triple towers, and reduces the cost of treating the exhaust gas of the three-dose catalyst.

[0063] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A molecular sieve drying device below the boiling point under a positive pressure environment, comprising a device body (1) and a molecular tank (15), characterized in that: Two groups of molecular tanks (15) are movably installed inside the device body (1), and the two groups of molecular tanks (15) are fixedly connected; An air inlet pipe (2) is installed at one end of the device body (1), a guide plate (3) is installed inside the device body (1), and the guide plate (3) is arranged tilted, a first air delivery pipe (8) is installed at one end of the guide plate (3), a first fixing plate (13) and a second fixing plate (25) are installed inside the device body (1), and two groups of molecular tanks (15) are arranged between the first fixing plate (13) and the second fixing plate (25), and a first reserved hole (15) is opened at one end of the first fixing plate (13) 4), and the first reserved hole (14) is connected to one end of the first gas pipe (8), one end of the second fixed plate (25) is provided with a second reserved hole (26), the upper end of the equipment body (1) is provided with an air outlet (29), one end of the air outlet (29) is installed with an air outlet pipe (30), the upper ends of the two groups of molecular tanks (15) are provided with air guide holes (23) and air delivery holes (24), and one group of air guide holes (23) and one group of air delivery holes (24) are movably connected to the second reserved hole (26); The two groups of molecular tanks (15) are each provided with an air inlet compartment (16), a molecular compartment (18) and an installation compartment (19). One group of the air inlet compartments (16) is movably connected to the first reserved hole (14). The two groups of molecular compartments (18) are each provided with an air inlet (21) and an air outlet (22) at both ends. The outer wall of the device body (1) is respectively provided with two groups of air inlet pipes (33) and two groups of air outlet pipes (34). The two groups of air inlet pipes (33) and the two groups of air outlet pipes (34) are staggered. Both groups of the air inlet pipes (33) are externally connected to a hot air blower.

2. The molecular sieve drying device below boiling point under positive pressure according to claim 1, characterized in that: A movable shaft (9) is mounted inside the first air delivery pipe (8), and a wind wheel (10) is mounted on the outer wall of the movable shaft (9).

3. The molecular sieve drying device below boiling point under positive pressure according to claim 2, characterized in that: A plurality of groups of movable cylinders (11) are movably mounted on the bottom end of the first fixed plate (13), and the plurality of groups of movable cylinders (11) are connected by toothed synchronous belts, and a group of movable cylinders (11) is connected to the movable shaft (9) by a toothed synchronous belt.

4. The molecular sieve drying device below boiling point under positive pressure according to claim 3, characterized in that: A movable plate (4) is movably mounted on the bottom end of the guide plate (3), a convex ring (5) is mounted on the upper end of the movable plate (4), and the convex ring (5) is movably connected to the inner wall of the guide plate (3).

5. The molecular sieve drying device below boiling point under positive pressure according to claim 4, characterized in that: Multiple groups of movable columns (6) are installed on the upper end of the movable plate (4), and springs (7) are installed on the upper ends of the multiple groups of movable columns (6), and the multiple groups of springs (7) are connected to the inner wall of the guide plate (3).

6. The molecular sieve drying device below boiling point under positive pressure according to claim 5, characterized in that: The inner walls of the plurality of movable cylinders (11) are all movably mounted with telescopic columns (12), and one end of the plurality of telescopic columns (12) is movably connected to the outer wall of the movable plate (4). The inner walls of the plurality of movable cylinders (11) are all provided with reciprocating thread grooves, and the outer walls of the plurality of telescopic columns (12) are all provided with protrusions movably connected to the inner walls of the reciprocating thread grooves.

7. The molecular sieve drying device below boiling point under positive pressure according to claim 6, characterized in that: A sewage outlet (31) is provided at the bottom of the equipment body (1), a sewage pipe (32) is installed at one end of the sewage outlet (31), and one end of the sewage pipe (32) is externally connected to a waste recovery device.

8. The molecular sieve drying equipment below boiling point under positive pressure according to claim 1, characterized in that: Partitions (17) are provided between the two groups of air inlet bins (16) and the two groups of molecular bins (18), and grids are installed on the inner walls of the two groups of air inlets (21) and the two groups of air outlets (22).

9. The molecular sieve drying device below boiling point under positive pressure according to claim 1, characterized in that: The two groups of installation bins (19) are both equipped with second gas pipes (20), and one end of the two groups of second gas pipes (20) is respectively connected to the two groups of gas holes (24), one group of gas holes (24) is connected to the other group of air inlet bins (16), and the other group of second gas pipes (20) is connected to the one group of air guide holes (23).

10. The molecular sieve drying device below boiling point under positive pressure environment according to claim 1, characterized in that: A driving motor (27) is mounted on the upper end of the guide plate (3), and a driving shaft (28) is installed on the output end of the driving motor (27). The outer wall of the driving shaft (28) is fixedly connected to the inner walls of the two groups of molecular tanks (15), and the outer wall of the driving shaft (28) is movably connected to the inner wall of the first fixed plate (13). The inner walls of the two groups of air guide holes (23) are both arranged at the upper ends of the two groups of molecular bins (18). The inner walls of the two groups of air guide holes (23) are both provided with gas humidity detection devices, and the two groups of gas humidity detection devices are both electrically connected to the driving motor (27).

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