Fluidized bed zeolite molecular sieve adsorption and desorption device
The recycling technology of fluidized bed zeolite molecular sieve adsorption-desorption device solves the problem of insufficient adsorption capacity in traditional activated carbon adsorption devices, and achieves efficient VOCs waste gas treatment and long service life of zeolite particles.
Patent Information
- Application Number
- CN202520217387.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing technologies, traditional activated carbon adsorption devices have limited adsorption capacity for VOCs waste gas, resulting in generally poor adsorption effects and unsatisfactory waste gas treatment. Furthermore, the activated carbon needs to be replaced frequently.
A fluidized bed zeolite molecular sieve adsorption-desorption device is adopted, which realizes the recycling of zeolite particles through a circulating conveying channel and conveying screw. The adsorbed zeolite particles are desorbed in the desorption section and then used for adsorption, thereby increasing the adsorption capacity and extending the service life.
It significantly improves the waste gas treatment effect, reduces the replacement frequency of zeolite particles, and enhances adsorption efficiency and equipment operational stability.
Smart Images
Figure CN223774608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a fluidized bed zeolite molecular sieve adsorption-desorption device. Background Technology
[0002] In existing technologies, the treatment of VOCs waste gas usually adopts physical adsorption, generally using activated carbon adsorption devices. However, due to the complex composition of organic waste gas, the activated carbon can only be used once, and its adsorption capacity is limited, resulting in a mediocre adsorption effect. Consequently, the waste gas treatment effect does not meet expectations, and the activated carbon also needs to be replaced frequently. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a fluidized bed zeolite molecular sieve adsorption-desorption device, which aims to solve the technical problems existing in the prior art, such as the single use of activated carbon in traditional activated carbon adsorption devices, the limited adsorption capacity of activated carbon, the general adsorption effect, the failure to achieve the expected waste gas treatment effect, and the need for frequent replacement of activated carbon.
[0004] The technical solution of this utility model is: a fluidized bed zeolite molecular sieve adsorption-desorption device, comprising a device body, a circulating conveying channel provided within the device body, zeolite particles provided within the circulating conveying channel, a conveying screw for conveying the zeolite particles provided within the circulating conveying channel, adsorption ports and desorption ports arranged at intervals on the circulating conveying channel, both ends of the adsorption ports and the desorption ports being connected to both sides of the device body, and a discharge port provided at the bottom of the circulating conveying channel, the discharge port being connected to one side of the device body.
[0005] Furthermore, the circulating conveying channel of this utility model includes an adsorption section, a vertical section, and a desorption section connected in sequence. The adsorption section is inclined, and the outlet of the adsorption section is horizontally connected to the inlet of the vertical section. The desorption section is horizontal, and the inlet of the desorption section is inclinedly connected to the outlet of the vertical section. The outlet of the desorption section is vertically connected to the inlet of the adsorption section.
[0006] Furthermore, in this utility model, the conveying screw is located within the vertical section, and the conveying screw is driven by a variable frequency screw motor, which is installed outside the main body of the device.
[0007] Furthermore, in this utility model, the adsorption port is located on the adsorption section, and the device body is provided with an adsorption air inlet and an adsorption air outlet on both sides of the adsorption port, respectively, and the adsorption air inlet and the adsorption air outlet are respectively connected to the adsorption port.
[0008] Furthermore, in this utility model, the desorption port is located on the desorption section, and the device body is provided with a desorption air inlet and a desorption air outlet on both sides of the desorption port, respectively, and the desorption air inlet and the desorption air outlet are respectively connected to the desorption port.
[0009] Furthermore, in this invention, the discharge port is located at the outlet of the adsorption section, and the outer end of the discharge port extends out of the device body to the outside.
[0010] Compared with the prior art, the present invention has the following advantages: The fluidized bed zeolite molecular sieve adsorption-desorption device of the present invention can recycle the adsorbed zeolite particles. The adsorbed zeolite particles can be sent to the desorption section for desorption via a conveying screw. After desorption, the zeolite particles are then sent to the adsorption section for repeated adsorption, which greatly increases the adsorption capacity and improves the waste gas treatment effect. The zeolite particles do not need to be replaced frequently; when replacing them, they can simply be discharged through the discharge port. Attached Figure Description
[0011] Figure 1 This is the front view of the present invention (arrow a in the figure indicates the conveying direction of the zeolite particles);
[0012] Figure 2 for Figure 1 AA cross-sectional view (arrow b in the figure indicates the flow direction of adsorption air inlet and outlet, and arrow c indicates the flow direction of desorption air inlet and outlet).
[0013] The components are: 1. Device body; 1a. Adsorption air inlet; 1b. Adsorption air outlet; 1c. Desorption air inlet; 1d. Desorption air outlet; 2. Zeolite particles; 3. Conveying screw; 4. Adsorption port; 5. Desorption port; 6. Discharge port; 7. Adsorption section; 8. Vertical section; 9. Desorption section; 10. Variable frequency screw motor. Detailed Implementation
[0014] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0015] Example:
[0016] The accompanying drawings illustrate a specific embodiment of the fluidized bed zeolite molecular sieve adsorption-desorption device of this utility model. It mainly includes a device body 1, within which a circulating conveying channel is provided for conveying filter media. The circulating conveying channel includes an adsorption section 7, a vertical section 8, and a desorption section 9 connected in sequence. The adsorption section 7 is inclined downwards, and its outlet is horizontally connected to the inlet of the vertical section 8. The desorption section 9 is horizontally positioned, with its inlet inclinedly connected to the outlet of the vertical section 8, and its outlet vertically connected to the inlet of the adsorption section 7.
[0017] Zeolite particles 2 are placed inside the circulating conveying channel. A conveying screw 3 is installed in the vertical section 8 of the circulating conveying channel. The conveying screw 3 is driven by a variable frequency screw motor 10, which is installed outside the device body 1. The conveying screw 3 can convey the zeolite particles 2, and the conveying direction of the zeolite particles 2 is as follows: Figure 1 As indicated by the middle arrow a.
[0018] The adsorption section 7 of the circulating conveying channel is provided with an adsorption port 4. The device body 1 is provided with an adsorption air inlet 1a and an adsorption air outlet 1b on both sides of the adsorption port 4, and the adsorption air inlet 1a and the adsorption air outlet 1b are respectively connected to the adsorption port 4.
[0019] The desorption section 9 of the circulating conveying channel is provided with a desorption port 5. The device body 1 is provided with a desorption air inlet 1c and a desorption air outlet 1d on both sides of the desorption port 5. The desorption air inlet 1c and the desorption air outlet 1d are respectively connected to the desorption port 5.
[0020] The outlet of the adsorption section 7 of the circulating conveying channel is also provided with a discharge port 6, and the outer end of the discharge port 6 extends out of the device body 1 to the outside.
[0021] In the specific operation of this fluidized bed zeolite molecular sieve adsorption-desorption device, the waste gas is discharged from the adsorption outlet 1b through the adsorption inlet 1a, adsorption port 4 of the adsorption section 7, and the VOCs mixed in the waste gas are adsorbed and filtered by the zeolite particles 2 in the adsorption section 7. Since the filter media of the device is made of zeolite particles, it has a certain degree of fluidity. The adsorbed zeolite filter media 2 is conveyed to the desorption section 9 for desorption via the conveying screw 3. After desorption, the zeolite particles 2 are then conveyed back to the adsorption section 7 for repeated adsorption. Although zeolite itself has a certain regeneration capacity, it still needs to be replaced due to pulverization and micropore blockage during application. Replacement can be done simply by discharging through the discharge port 6.
[0022] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.
Claims
1. A fluidized bed zeolite molecular sieve adsorption-desorption device, characterized in that: The device includes a main body (1), which has a circulating conveying channel. Zeolite particles (2) are placed in the circulating conveying channel. A conveying screw (3) for conveying the zeolite particles (2) is placed in the circulating conveying channel. Adsorption ports (4) and desorption ports (5) are arranged at intervals on the circulating conveying channel. Both ends of the adsorption ports (4) and the desorption ports (5) are connected to both sides of the main body (1). A discharge port (6) is also provided at the bottom of the circulating conveying channel. The discharge port (6) is connected to one side of the main body (1).
2. The fluidized bed zeolite molecular sieve adsorption-desorption device according to claim 1, characterized in that: The circulating conveying channel includes an adsorption section (7), a vertical section (8), and a desorption section (9) connected in sequence. The adsorption section (7) is inclined, and the outlet of the adsorption section (7) is horizontally connected to the inlet of the vertical section (8). The desorption section (9) is horizontal, and the inlet of the desorption section (9) is inclinedly connected to the outlet of the vertical section (8). The outlet of the desorption section (9) is vertically connected to the inlet of the adsorption section (7).
3. The fluidized bed zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that: The conveying screw (3) is located in the vertical section (8) and is driven by a variable frequency screw motor (10). The variable frequency screw motor (10) is installed outside the device body (1).
4. The fluidized bed zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that: The adsorption port (4) is located on the adsorption section (7). The device body (1) is provided with an adsorption air inlet (1a) and an adsorption air outlet (1b) on both sides of the adsorption port (4). The adsorption air inlet (1a) and the adsorption air outlet (1b) are respectively connected to the adsorption port (4).
5. The fluidized bed zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that: The desorption port (5) is located on the desorption section (9). The device body (1) is provided with a desorption air inlet (1c) and a desorption air outlet (1d) on both sides of the desorption port (5). The desorption air inlet (1c) and the desorption air outlet (1d) are respectively connected to the desorption port (5).
6. The fluidized bed zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that: The discharge port (6) is located at the outlet of the adsorption section (7), and the outer end of the discharge port (6) extends out of the device body (1) to the outside.