Drying furnace for molecular sieve production

By preheating the hot gas after dehumidification by a suction fan in the drying furnace for molecular sieve production, and turning the molecular sieve by driving the shaft to rotate via a pulley, the problem of unutilized hot gas in the existing technology is solved, the drying efficiency and uniformity are improved, and energy is saved.

CN223939767UActive Publication Date: 2026-02-24ZONEBAO MOLECULAR SIEVE CO LTD
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Patent Information

Application Number
CN202423145836.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-02-24
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

In the prior art, molecular sieve production uses efficient methods to remove molecules from flue gas, but the hot gas emitted by the exhaust fan is not utilized, resulting in energy waste.

Method used

A drying furnace for molecular sieve production was designed. The gas carrying heat is dehumidified by a dehumidification box through a suction fan, and then introduced into the inner cavity of the preheating box through the air guide pipe and air inlet pipe to preheat the molecular sieve in the preheating cylinder. The preheating is carried out by using hot gas, and the rotating shaft is driven to rotate synchronously by pulleys and transmission belts to realize the tumbling and uniform preheating of the molecular sieve.

Benefits of technology

This approach fully utilizes the exhaust gas, shortens drying time, improves drying efficiency and uniformity, and saves energy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223939767U_ABST
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Abstract

The utility model discloses a drying furnace for molecular sieve production, which comprises a box body, a stirring component is arranged in the box body, a hot air box is arranged on one side wall of the box body, a driving motor is arranged on the other side wall of the box body, the output end of the driving motor is in transmission connection with a rotating rod, the rotating rod is connected with the stirring component in the box body, and the stirring component is arranged in the box body. An air suction pipe is fixedly installed on the top wall of the box body, a suction fan is fixedly installed on the top wall of the box body, an air inlet pipe of the suction fan is fixedly connected with the air suction pipe, a preheating box is fixedly installed on the front side wall of the box body, an air guide pipe is fixedly installed on an air exhaust pipe of the suction fan, an air inlet pipe is fixedly installed on the air guide pipe, and an air outlet pipe is fixedly installed on the air inlet pipe. And the air inlet pipe is fixedly mounted on the preheating box. According to the molecular sieve drying device, gas exhausted from the box body is fully utilized, the drying time of preheated molecular sieves in the subsequent drying process is shortened, and the drying efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of molecular sieve production technology, specifically a drying oven for molecular sieve production. Background Technology

[0002] Molecular sieves are aluminosilicate compounds with a cubic crystal lattice. They possess a uniform microporous structure with pores of uniform diameter. These pores adsorb molecules smaller than their diameter into the interior of the pores, and preferentially adsorb polar and unsaturated molecules. Therefore, they can separate molecules with different degrees of polarity, saturation, size, and boiling point, thus performing a "sieving" function, hence the name molecular sieve.

[0003] In the prior art, the authorized patent with publication number CN212870566U discloses a high-efficiency drying device for molecular sieve production, including a hollow box. Four symmetrically arranged support rods are fixedly connected to the inner walls of both sides of the hollow box. A drying chamber is fixedly connected to the side of the four support rods away from the hollow box. A support plate is fixedly connected to the outer wall of one side of the hollow box, and a drive motor is fixedly connected to the upper end of the support plate. The beneficial effects of this utility model are: by setting the drive motor to drive the rotating rod and stirring rod to rotate, the molecular sieve can be turned over, which accelerates the drying efficiency; by setting the exhaust fan, heating chamber and U-shaped air duct to increase the hot air flow speed, the drying efficiency is further improved; by the suction fan to drive the suction pipe, the water vapor generated during drying can be quickly extracted to prevent re-dampening and energy waste; at the same time, by setting the guide plate, the molecular sieve can be introduced in layers, which effectively prevents the clogging of the feed pipe and improves production efficiency.

[0004] However, the above technical solution still has the following shortcomings in actual use: the suction fan in the above device draws the air out of the drying box and then discharges it directly. The air drawn out of the drying box contains heat, and direct discharge causes energy waste. In this regard, we propose a drying furnace for molecular sieve production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a drying oven for molecular sieve production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying furnace for molecular sieve production, comprising:

[0007] The box contains a stirring assembly. A hot air box is located on one side wall of the box, and a drive motor is installed on the other side wall. The output end of the drive motor is connected to a rotating rod, which is connected to the stirring assembly inside the box. An air suction pipe is fixedly installed on the top wall of the box, and a suction fan is fixedly installed on the top wall of the box. The air inlet pipe of the suction fan is fixedly connected to the air suction pipe. A preheating box is fixedly installed on the front side wall of the box. An air guide pipe is fixedly installed on the exhaust pipe of the suction fan, and an air inlet pipe is fixedly installed on the air guide pipe. The air inlet pipe is fixedly installed on the preheating box. An exhaust pipe is fixedly installed on the side wall of the preheating box away from the air inlet pipe. A preheating cylinder is provided inside the preheating box. The preheating cylinder is hollow. A rotating shaft is fixedly installed on both sides of the preheating cylinder and is rotatably mounted on the preheating box. A material cylinder is fixedly installed on the preheating cylinder, and a cylinder cover is threaded onto the material cylinder.

[0008] Preferably, pulleys are fixedly installed on both the rotating rod and the rotating shaft, and the two pulleys are connected by a transmission belt.

[0009] Preferably, a dehumidification box is fixedly installed on the air duct, and two drying plates with several uniform through holes are installed in the dehumidification box.

[0010] Preferably, a feeding port is provided on the top wall of the preheating box, and a discharge port is provided on the bottom wall of the preheating box. Both the feeding port and the discharge port are hinged with heat-insulating covers.

[0011] Preferably, the preheating box has a door hinged to the front side.

[0012] Preferably, both the air duct and the air inlet duct are made of heat-insulating material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, when the molecular sieve is dried in the box, the suction fan will dehumidify the gas with heat in the box through the dehumidification box and then introduce it into the inner cavity of the preheating box through the air guide pipe and the air inlet pipe to preheat the molecular sieve in the preheating cylinder. This not only makes full use of the gas discharged from the box, but also makes it easier to shorten the drying time required for the preheated molecular sieve in the subsequent drying process and improve the drying efficiency.

[0015] 2. This utility model, through the cooperation of two pulleys and a transmission belt, can facilitate the synchronous rotation of the rotating shaft when the rotating rod rotates. When the rotating shaft rotates, it can drive the preheating cylinder to rotate, thereby facilitating the tumbling of the molecular sieve in the preheating cylinder and improving the uniformity of preheating. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of a drying furnace for molecular sieve production proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the connection between the pulley and the transmission belt in a drying furnace for molecular sieve production according to the present invention.

[0018] Figure 3 This is a cross-sectional structural diagram of the preheating box in a drying furnace for molecular sieve production proposed in this utility model.

[0019] In the diagram: 1. Box body; 2. Hot air box; 3. Drive motor; 4. Rotating rod; 5. Suction pipe; 6. Fan; 7. Preheating box; 8. Air duct; 9. Air inlet pipe; 10. Air outlet pipe; 11. Preheating cylinder; 12. Rotating shaft; 13. Material cylinder; 14. Cylinder cover; 15. Pulley; 16. Drive belt; 17. Dehumidification box; 18. Drying plate; 19. Feed port; 20. Discharge port; 21. Insulation cover plate; 22. Box door. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a drying oven for molecular sieve production, comprising:

[0022] The box 1 contains a stirring assembly. A hot air box 2 is mounted on one side wall of the box 1. Both the hot air box 2 and the stirring assembly are publicly available technologies and will not be described in detail. A drive motor 3 is mounted on the other side wall of the box 1. A rotating rod 4 is connected to the output end of the drive motor 3. The rotating rod 4 is connected to the stirring assembly inside the box 1. An air suction pipe 5 is fixedly mounted on the top wall of the box 1. A vacuum fan 6 is fixedly mounted on the top wall of the box 1. The air inlet pipe of the vacuum fan 6 is fixedly connected to the air suction pipe 5. A preheating device is fixedly mounted on the front side wall of the box 1. The preheating box 7 has an air guide pipe 8 fixedly installed on the exhaust pipe of the suction fan 6, an air inlet pipe 9 fixedly installed on the air guide pipe 8, and the air inlet pipe 9 fixedly installed on the preheating box 7. An exhaust pipe 10 is fixedly installed on the side wall of the preheating box 7 away from the air inlet pipe 9. A preheating cylinder 11 is provided in the inner cavity of the preheating box 7. The preheating cylinder 11 is hollow. A rotating shaft 12 is fixedly installed on both sides of the preheating cylinder 11. The rotating shaft 12 is rotatably installed on the preheating box 7. A material cylinder 13 is fixedly installed on the preheating cylinder 11. A cylinder cover 14 is threadedly connected to the material cylinder 13.

[0023] Both the rotating rod 4 and the rotating shaft 12 are fixedly mounted with pulleys 15. The two pulleys 15 are connected by a transmission belt 16. The cooperation between the two pulleys 15 and the transmission belt 16 makes it easy to drive the rotating shaft 12 to rotate synchronously when the rotating rod 4 rotates. When the rotating shaft 12 rotates, it can drive the preheating cylinder 11 to rotate, thereby making the molecular sieve in the preheating cylinder 11 turn over and improving the uniformity of preheating.

[0024] A dehumidification box 17 is fixedly installed on the air duct 8. Two drying plates 18 with several uniform through holes are installed in the dehumidification box 17. The drying plates 18 can absorb the moisture in the passing gas and prevent the moisture in the gas after the box 1 is dried from entering the preheating box 7 and affecting the preheating effect.

[0025] The preheating box 7 has a feeding port 19 on its top wall and a discharge port 20 on its bottom wall. Both the feeding port 19 and the discharge port 20 are hinged with heat-insulating covers 21. When the material cylinder 13 faces the feeding port 19, it is convenient to add material to the preheating cylinder 11. When the material cylinder 13 faces the discharge port 20, it is convenient to discharge material from the preheating cylinder 11.

[0026] The preheating box 7 is hinged to a door 22 on the front side, and the door 22 allows for easy screwing on the cylinder cover 14.

[0027] Both the air duct 8 and the air inlet duct 9 are made of heat-insulating material, which prevents heat from dissipating during the transmission of heat in the air duct 8 and the air inlet duct 9.

[0028] Working principle: When using this utility model, the molecular sieve to be dried is added to the preheating cylinder 11. While the molecular sieve is drying in the chamber 1, the suction fan 6 will dehumidify the heated gas in the chamber 1 through the dehumidification box 17 and then introduce it into the inner cavity of the preheating box 7 through the air guide pipe 8 and the air inlet pipe 9 to preheat the molecular sieve in the preheating cylinder 11. This not only makes full use of the gas discharged from the chamber 1, but also shortens the drying time required in the subsequent drying process and improves the drying efficiency. Through the cooperation of the two pulleys 15 and the transmission belt 16, the rotating shaft 12 can be driven to rotate synchronously when the rotating rod 4 rotates. When the rotating shaft 12 rotates, it can drive the preheating cylinder 11 to rotate, thereby making the molecular sieve in the preheating cylinder 11 turn over and improving the uniformity of preheating.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying oven for molecular sieve production, characterized in that, include: The box (1) is equipped with a stirring assembly. A hot air box (2) is provided on one side wall of the box (1). A drive motor (3) is installed on the other side wall of the box (1). A rotating rod (4) is connected to the output end of the drive motor (3). The rotating rod (4) is connected to the stirring assembly inside the box (1). An air suction pipe (5) is fixedly installed on the top wall of the box (1). A vacuum fan (6) is fixedly installed on the top wall of the box (1). The air inlet pipe of the vacuum fan (6) is fixedly connected to the air suction pipe (5). A preheating box (7) is fixedly installed on the front side wall of the box (1). The exhaust of the vacuum fan (6) is... A guide pipe (8) is fixedly installed on the pipe, an air inlet pipe (9) is fixedly installed on the guide pipe (8), the air inlet pipe (9) is fixedly installed on the preheating box (7), an exhaust pipe (10) is fixedly installed on the side wall of the preheating box (7) away from the air inlet pipe (9), a preheating cylinder (11) is provided in the inner cavity of the preheating box (7), the preheating cylinder (11) is hollow, a rotating shaft (12) is fixedly installed on both sides of the preheating cylinder (11), the rotating shaft (12) is rotatably installed on the preheating box (7), a material cylinder (13) is fixedly installed on the preheating cylinder (11), and a cylinder cover (14) is threadedly connected to the material cylinder (13).

2. The drying furnace for molecular sieve production according to claim 1, characterized in that: Both the rotating rod (4) and the rotating shaft (12) are fixedly equipped with pulleys (15), and the two pulleys (15) are connected by a transmission belt (16).

3. The drying furnace for molecular sieve production according to claim 1, characterized in that: A dehumidification box (17) is fixedly installed on the air duct (8), and two drying plates (18) with several uniform through holes are installed in the dehumidification box (17).

4. A drying furnace for molecular sieve production according to claim 1, characterized in that: The preheating box (7) has a feeding port (19) on its top wall and a discharge port (20) on its bottom wall. Both the feeding port (19) and the discharge port (20) are hinged with heat-insulating covers (21).

5. A drying furnace for molecular sieve production according to claim 1, characterized in that: The preheating box (7) is hinged to a door (22) on the front side.

6. A drying furnace for molecular sieve production according to claim 1, characterized in that: Both the air duct (8) and the air inlet duct (9) are made of heat-insulating material.

Citation Information

Patent Citations

  • Efficient drying device for molecular sieve production

    CN212870566U