Secondary recovery cabinet
By designing a secondary recycling cabinet, which combines a fan box, an air duct box, and a filter box, secondary air filtration and dust collection are achieved, solving the problems of large footprint and high cost of existing filters and keeping the workshop air fresh.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUANHUA ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
Existing filters only perform single-pass filtration, requiring two devices to be assembled, which takes up a large area and is costly, affecting the air purification effect in the workshop.
Design a secondary recycling cabinet that includes a fan box, an air pipe box, and a filter box. It uses an exhaust fan and a filter element to achieve secondary air filtration and dust collection, reducing equipment footprint and cost.
It achieves secondary air recycling and filtration, saving energy, reducing exhaust emissions, effectively collecting dust, and keeping the workshop air fresh.
Smart Images

Figure CN224126846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of filtration devices, and in particular to a secondary recycling cabinet. Background Technology
[0002] Existing filters only perform single-pass filtration. When secondary filtration is required, two filters need to be assembled, resulting in a large footprint, high equipment costs, and poor air quality in the workshop. Utility Model Content
[0003] One objective of this invention is to provide a secondary recycling cabinet that recycles air during secondary discharge, thereby maintaining fresh air in the workshop.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] A secondary recycling cabinet includes a fan box, an air pipe box, and a filter cartridge box. The fan box is located above the filter cartridge box, and the air pipe box is located between the fan box and the filter cartridge box. An exhaust fan is installed inside the fan box. The first air inlet of the exhaust fan is connected to the upper end of the air pipe box, and the first air outlet of the exhaust fan is connected to the outside of the fan box. Several filter cartridges are installed vertically inside the filter cartridge box. A stand is connected to the lower end of the filter cartridge box, and a powder cleaning port is installed in the middle of the stand. A second air inlet is provided on one side of the filter cartridge box, and an air damper elbow is connected to the second air inlet.
[0006] As a preferred technical solution, a silencer is installed inside the fan box, and the silencer is fixed to the upper end of the fan box.
[0007] As a preferred technical solution, the air duct box has several air vents installed inside, a filter chamber is installed on the outside of the air duct box, and a flexible hose is connected between the filter chamber and the air vents.
[0008] As a preferred technical solution, a first inspection door is installed on one side of the endotracheal tube box, and a second inspection door is installed on one side of the filter cartridge box.
[0009] As a preferred technical solution, the filter elements are distributed in an array at equal intervals within the filter element box.
[0010] As a preferred technical solution, the tripod has a conical cavity in the middle, and the powder cleaning port is located at the lower center of the conical cavity.
[0011] The beneficial effects of this utility model are as follows: It provides a secondary recycling cabinet for secondary air recycling, which saves energy, reduces exhaust emissions, effectively collects powdery or granular waste, protects the environment, and maintains fresh air in the workshop. Attached Figure Description
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a front view of a secondary recycling cabinet as described in the embodiment;
[0014] Figure 2 This is a side view of a secondary recycling cabinet as described in the embodiment;
[0015] Figure 3 This is a top view of a secondary recycling cabinet as described in the embodiment;
[0016] Figure 4 This is a top view of the filter cartridge box described in the embodiment;
[0017] Figure 5 This is a front view of the tracheotomy box described in the embodiment.
[0018] Figures 1 to 5 middle:
[0019] 1. Fan box; 2. Air duct box; 3. Filter box; 4. Exhaust fan; 5. First air outlet; 6. Filter element; 7. Stand; 8. Powder cleaning port; 9. Second air inlet; 10. Air damper elbow; 11. Silencer; 12. Air outlet; 13. Filter chamber; 14. First inspection door; 15. Second inspection door; 16. Conical cavity. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1 to 5 As shown in this embodiment, a secondary recycling cabinet includes a fan box 1, an air pipe box 2, and a filter box 3. The fan box 1 is located above the filter box 3, and the air pipe box 2 is located between the fan box 1 and the filter box 3. An exhaust fan 4 is installed inside the fan box 1. The first air inlet 12 of the exhaust fan 4 is connected to the upper end of the air pipe box 2, and the first air outlet 5 of the exhaust fan 4 is connected to the outside of the fan box 1. Several filter elements 6 are installed vertically inside the filter box 3. A stand 7 is connected to the lower end of the filter box 3, and a powder cleaning port 8 is installed in the middle of the stand 7. A second air inlet 9 is provided on one side of the filter box 3, and an air damper elbow 10 is connected to the second air inlet 9.
[0022] In terms of specific structure, a silencer 11 is installed inside the fan box 1 and is fixed to the upper end of the fan box 1. Several air outlets 12 are installed inside the air duct box 2. A filter chamber 13 is installed on the outside of the air duct box 2. A flexible hose is connected between the filter chamber 13 and the air outlet 12. A first inspection door 14 is installed on one side of the air duct box 2. A second inspection door 15 is installed on one side of the filter element box 3. The filter elements 6 are distributed in an array at equal intervals inside the filter element box 3. A conical cavity position 16 is set in the middle of the bracket 7. The powder cleaning port 8 is located at the lower center of the conical cavity position 16.
[0023] The working principle is as follows: Turbid air enters the filter box 3 from the air damper elbow 10. The twelve filter elements 6 in the filter box 3 work together to isolate the dust outside the filter elements 6. The first layer of air rises from the inside of the filter elements 6, enters the air outlet 12, and then passes through the hose to the filter chamber 13 for filtration. Then it returns to the air duct box 2 and is drawn out to the workshop by the exhaust fan 4 above. After a lot of dust accumulates on the outer layer of the filter elements 6, it falls into the conical cavity 16 and is all collected and discharged from the dust removal port 8.
[0024] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.
Claims
1. A secondary recovery tank characterized by, The device includes a fan box, an air duct box, and a filter cartridge box. The fan box is located above the filter cartridge box, and the air duct box is located between the fan box and the filter cartridge box. An exhaust fan is installed inside the fan box. The first air inlet of the exhaust fan is connected to the upper end of the air duct box, and the first air outlet of the exhaust fan is connected to the outside of the fan box. Several filter cartridges are installed vertically inside the filter cartridge box. A bracket is connected to the lower end of the filter cartridge box, and a powder cleaning port is installed in the middle of the bracket. A second air inlet is provided on one side of the filter cartridge box, and an air damper elbow is connected to the second air inlet.
2. A secondary recovery tank according to claim 1, characterized in that The fan box is equipped with a silencer, which is fixed to the upper end of the fan box.
3. A secondary recovery tank according to claim 1, wherein The air duct box has several air vents installed inside, and a filter chamber is installed on the outside of the air duct box. A flexible hose connects the filter chamber to the air vents.
4. A secondary recovery tank according to claim 1, wherein A first inspection door is installed on one side of the endotracheal box, and a second inspection door is installed on one side of the filter cartridge box.
5. A secondary recovery tank according to claim 1, wherein The filter elements are arranged in an array with equal spacing within the filter element box.
6. A secondary recovery tank according to claim 1, wherein The tripod has a conical cavity in the middle, and the powder cleaning port is located at the lower center of the conical cavity.