Heating device for molecular sieve activation
By tilting the activation cylinder and inner wall baffle, combining the gas drying unit and the reflux tube, the problems of uneven drying of the molecular sieve and the influence of water vapor are solved, and efficient and uniform activation of the molecular sieve is achieved.
Patent Information
- Application Number
- CN202421426018.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing molecular sieve activation device causes uneven drying of the molecular sieve, and the water vapor generated by heating affects the drying efficiency.
A heating device for activation of molecular sieve is designed. By tilting the activation cylinder and inner wall baffle, the turning and sufficient drying of the molecular sieve is achieved. At the same time, a gas drying unit and a reflux tube are arranged to absorb water vapor and reuse waste heat to improve the drying efficiency.
The uniform drying and efficient activation of molecular sieves are achieved, which avoids the influence of water vapor on drying and reduces heat energy waste.
Smart Images
Figure CN222684299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molecular sieve heating, in particular to a heating device for activating molecular sieves. Background Art
[0002] Molecular sieve is a kind of artificially synthesized hydrated aluminosilicate with the function of screening molecules. After the molecular sieve is activated at high temperature and loses water, many micropores with uniform pore size are formed inside the crystal, with the advantages of high adsorption capacity, strong selectivity, high temperature resistance, and the molecular sieve needs to be dried at high temperature, reactivated, and can be used repeatedly. The common molecular sieve activation treatment adopts the method of placing the molecular sieve in a cylindrical apparatus, passing hot gas, heating and activating the molecular sieve, and rotating the cylindrical apparatus with the molecular sieve so that the molecular sieve can be turned over, and the molecular sieve of the lower layer can be turned over to the upper layer and contacted with hot gas for activation, but the heat opening contacted by the molecular sieves on both sides is not completely consistent, resulting in the drying speed parts at both ends of the molecular sieve being exactly the same, easily causing the molecular sieve to be dried unevenly, and the water vapor generated by heating is still in the apparatus, and when the molecular sieve is turned over, the molecular sieve will still contact with water vapor, affecting the drying efficiency. Therefore, those skilled in the art provide a molecular sieve activation heating device to solve the problems raised in the above-mentioned background technology. Utility Model Content
[0003] The purpose of the utility model is to provide a heating device for activating a molecular sieve, so as to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A heating device for activating a molecular sieve comprises an activation cylinder, wherein the surface of the activation cylinder is provided with an inlet and outlet, mounting frames are installed on both sides of the activation cylinder, and both ends of the activation cylinder are rotatably connected to the inside of the mounting frames, a motor is installed on the lower side of the activation cylinder, and a belt is jointly sleeved on the shaft surface of the motor and the activation cylinder, the left end of the activation cylinder is rotatably and sealably connected to an air inlet pipe, the left end of the air inlet pipe is connected to an air inlet fan, the input end of the air inlet fan is connected to a gas heater, and the right end of the activation cylinder is rotatably and sealably connected to an air outlet pipe.
[0006] As a further solution of the utility model: the activation cylinder is arranged obliquely, and the inlet and outlet are located at the position farthest from the rotation axis of the activation cylinder.
[0007] As a further solution of the utility model: the inner wall of the activation cylinder is provided with a baffle, and the activation cylinder is located on the inner side of the inlet and outlet without a baffle.
[0008] As a further solution of the utility model: filter screens are provided at both ends of the activation cylinder.
[0009] As a further solution of the utility model: the right end of the outlet pipe is connected to a gas drying unit, the right end of the gas drying unit is connected to an exhaust pipe, the exhaust pipe and the intake pipe are commonly connected via a return pipe, the interior of the return pipe is connected to a circulating fan, and electric valves are installed on the surface of the intake pipe and on the left side of the return pipe, on the surface of the exhaust pipe and on the right side of the return pipe, and on the surface of the return pipe and on the right side of the circulating fan.
[0010] As a further solution of the utility model: the gas drying unit is an air dryer.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] By setting the activation cylinder at an angle, when the activation cylinder rotates, the molecular sieve can roll down from a high place to a low place, and a baffle is set inside the activation cylinder to turn the molecular sieve over, thereby realizing the exchange of positions of the molecular sieves on the back side and at both ends and in the middle of the molecular sieve. After hot air is introduced into the activation cylinder, the molecular sieve can be fully dried and activated so that all the molecular sieves can discharge moisture. A gas drying unit is also provided to absorb the discharged moisture to ensure that the molecular sieves inside the activation cylinder are no longer in contact with water vapor after activation, thereby ensuring the drying effect and drying efficiency. At the same time, a reflux pipe is also provided to reuse the waste heat in the air to reduce the waste of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of a heating device for activating molecular sieves;
[0014] Figure 2 This is a schematic diagram of the internal structure of an activation cylinder in a heating device for molecular sieve activation.
[0015] In the figure: 1. Activation cylinder; 2. Mounting frame; 3. Motor; 4. Belt; 5. Gas heater; 6. Inlet fan; 7. Inlet pipe; 8. Outlet pipe; 9. Electric valve; 10. Gas drying unit; 11. Discharge pipe; 12. Return pipe; 13. Filter; 14. Baffle; 15. Inlet and outlet; 16. Circulation fan. DETAILED DESCRIPTION
[0016] See also Figures 1-2In an embodiment of the utility model, a heating device for activating a molecular sieve comprises an activation cylinder 1, the surface of the activation cylinder 1 is provided with an inlet and outlet 15, mounting frames 2 are installed on both sides of the activation cylinder 1, and the two ends of the activation cylinder 1 are rotatably connected to the inside of the mounting frame 2, a motor 3 is installed on the lower side of the activation cylinder 1, and a belt 4 is jointly sleeved on the shaft surface of the motor 3 and the activation cylinder 1, the left end of the activation cylinder 1 is rotatably and sealedly connected with an air inlet pipe 7, the left end of the air inlet pipe 7 is connected with an air inlet fan 6, the input end of the air inlet fan 6 is connected with a gas heater 5, and the right end of the activation cylinder 1 is rotatably and sealedly connected with an air outlet pipe 8.
[0017] Preferably, the activation cylinder 1 is arranged to be inclined, and the inlet and outlet 15 is located at a position farthest from the rotation axis of the activation cylinder 1 .
[0018] Preferably, a baffle 14 is provided on the inner wall of the activation cylinder 1 , and no baffle 14 is provided on the inner side of the activation cylinder 1 located at the inlet and outlet port 15 .
[0019] Preferably, filter screens 13 are provided at both ends of the activation cylinder 1 .
[0020] Preferably, the right end of the outlet pipe 8 is connected to a gas drying unit 10, the right end of the gas drying unit 10 is connected to a discharge pipe 11, the discharge pipe 11 and the intake pipe 7 are commonly connected via a return pipe 12, the interior of the return pipe 12 is connected to a circulating fan 16, and electric valves 9 are installed on the surface of the intake pipe 7 and on the left side of the return pipe 12, on the surface of the discharge pipe 11 and on the right side of the return pipe 12, and on the surface of the return pipe 12 and on the right side of the circulating fan 16.
[0021] Preferably, the gas drying unit 10 is an air dryer, and may also be other drying equipment with a water absorption effect.
[0022] The working principle of the utility model is as follows: when the molecular sieve is activated and heated, the molecular sieve is first placed into the interior of the activation cylinder 1 from the gas heater 5, and then the gas heater 5 is blocked or closed, and then the gas heater 5 is turned on to generate hot air, the air intake fan 6 is turned on, the electric valve 9 on the surface of the air intake pipe 7 and the discharge pipe 11 is opened, and the electric valve 9 on the surface of the return pipe 12 is closed to pass the hot air into the interior of the activation cylinder 1. After the interior of the activation cylinder 1 is filled, the electric valve 9 on the surface of the discharge pipe 11 is closed, and then the motor 3 is turned on, and the activation cylinder 1 is rotated by the belt 4. When the activation cylinder 1 rotates, the baffle 14 inside the activation cylinder 1 will block the molecular sieve, thereby promoting the molecular sieve to turn over, and because the activation cylinder 1 is tilted, the molecular sieve located at a high place can roll down to a low place, thereby realizing the exchange of the molecular sieves on the back of the molecular sieve and at both ends and the middle, so that the molecular sieve can fully contact with the hot air, and then be heated and activated, and the internal moisture is discharged, and both ends of the interior of the activation cylinder 1 are provided with filtering The net 13 can prevent the molecular sieve from leaking from both ends of the activation cylinder 1. After the molecular sieve is activated for a period of time, the electric valve 9 on the surface of the air inlet pipe 7 is closed, and the electric valve 9 on the surface of the return pipe 12 is opened. The air circulation fan 16, the hot air mixed with water vapor will be sucked into the gas drying unit 10, the water vapor is absorbed by the gas drying unit 10, the hot air passes through the return pipe 12 and re-enters the interior of the activation cylinder 1 to heat and activate the molecular sieve. After the temperature of this part of the hot air decreases, the electric valve 9 on the surface of the air inlet pipe 7 is reopened, the electric valve 9 on the surface of the return pipe 12 is closed, and the electric valve 9 on the surface of the discharge pipe 11 is opened to exchange the air inside the activation cylinder 1, and then the molecular sieve inside the activation cylinder 1 is heated and activated until all the moisture contained therein is discharged, and finally the activated molecular sieve is taken out from the gas heater 5. Since the position of the gas heater 5 is farthest from the rotation axis of the activation cylinder 1, when the gas heater 5 is vertically facing downward, all the molecular sieves inside the activation cylinder 1 can be taken out.
[0023] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A heating device for activating a molecular sieve, comprising an activation cylinder (1), characterized in that: The surface of the activation cylinder (1) is provided with an inlet and outlet (15), mounting frames (2) are installed on both sides of the activation cylinder (1), and the two ends of the activation cylinder (1) are rotatably connected to the inside of the mounting frames (2), a motor (3) is installed on the lower side of the activation cylinder (1), and a belt (4) is commonly sleeved on the shaft surface of the motor (3) and the activation cylinder (1), the left end of the activation cylinder (1) is rotatably and sealably connected to an air inlet pipe (7), the left end of the air inlet pipe (7) is connected to an air inlet fan (6), the input end of the air inlet fan (6) is connected to a gas heater (5), and the right end of the activation cylinder (1) is rotatably and sealably connected to an air outlet pipe (8).
2. A molecular sieve activation heating device according to claim 1, characterized in that: The activation cylinder (1) is arranged at an angle, and the inlet and outlet (15) is located at a position farthest from the rotation axis of the activation cylinder (1).
3. A molecular sieve activation heating device according to claim 2, characterized in that: The inner wall of the activation cylinder (1) is provided with a baffle (14), and the inner side of the activation cylinder (1) located at the material inlet and outlet (15) is not provided with a baffle (14).
4. A molecular sieve activation heating device according to claim 1, characterized in that: Filter screens (13) are provided at both ends of the activation cylinder (1).
5. A molecular sieve activation heating device according to claim 1, characterized in that: The right end of the air outlet pipe (8) is connected to a gas drying unit (10), the right end of the gas drying unit (10) is connected to a discharge pipe (11), the discharge pipe (11) and the air inlet pipe (7) are connected to a return pipe (12), the interior of the return pipe (12) is connected to a circulation fan (16), and electric valves (9) are installed on the surface of the air inlet pipe (7) and located on the left side of the return pipe (12), on the surface of the discharge pipe (11) and located on the right side of the return pipe (12), and on the surface of the return pipe (12) and located on the right side of the circulation fan (16).
6. A molecular sieve activation heating device according to claim 5, characterized in that: The gas drying unit (10) is an air dryer.