Air discharging and purifying device for down feather production workshop

By installing an underground down-collecting system and a central recycling system, combined with an air purification device, the problems of down waste, worker health, and fire safety risks in down production have been solved. This has enabled efficient down recycling and air purification, improving the production environment and worker health.

CN224188716UActive Publication Date: 2026-05-01NANTONG HONGRUN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HONGRUN INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The production process of down jackets and down comforters involves down waste, worker health damage, and fire safety risks, especially the environmental pollution caused by flying down dust and the potential dust explosion hazard.

Method used

The system employs an underground down-absorbing system and a central recycling system, combined with an air purification device. Down is absorbed through a tempered floor, recycled in stages, and the air is purified using water filtration and activated carbon deodorization technology.

Benefits of technology

It significantly reduces down waste, improves the hygiene of the production environment, lowers production costs, protects workers' health, eliminates fire safety hazards, and ensures clean and harmless air.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related technical field of down feather recovery, discloses an air discharging and purifying device for a down feather production workshop, and aims to solve the problems of down feather waste, worker health damage, fire safety risk and the like in the down feather production process. An underground down absorbing system capable of absorbing down on the ground is arranged below a tempered floor, when the absorbed down is conveyed to a central recycling system, sorting of the down is achieved through an amplifier, and the flying down and the falling down can be recycled for the second time; meanwhile, air in the absorption process is subjected to water filtration and activated carbon deodorization through a rear-end filtering system, cleaner air can be discharged into a down feather production workshop, the working environment in the down feather production workshop is effectively improved, and finally the effects of down feather absorption, sorting and air purification are achieved.
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Description

An air emission purification device for down production workshops Technical Field

[0001] This utility model relates to the technical field of down recycling, and in particular to an air emission purification device for down production workshops. Background Technology

[0002] In the traditional manufacturing process of down jackets and down comforters, the production environment often faces a series of technical challenges that urgently need to be addressed. Particularly in the processing and filling of down raw materials, the production site is commonly plagued by flying down dust that is scattered everywhere. This not only severely affects the cleanliness of the production workshop but also causes significant inconvenience to subsequent cleaning work.

[0003] With the continuous and persistently high price of down raw materials in recent years, the problem of down waste in the production environment has become particularly prominent. In the production processes of garment factories and brand companies, due to the lack of effective down collection and utilization mechanisms, a large amount of down is scattered and lost during processing. This not only directly increases production costs but also brings huge economic losses to enterprises. Furthermore, for workers on-site, this production environment filled with down dust poses a significant safety hazard. Long-term exposure to air filled with fine down fibers can lead to respiratory discomfort and various occupational diseases, such as allergic rhinitis and asthma, seriously damaging workers' health. Even more seriously, because down dust is fine and flammable, the accumulation of down dust in the workshop over a long period without effective cleaning can, once reaching a certain concentration, potentially trigger a dust explosion upon contact with an open flame or high temperature. This potential fire safety risk not only threatens the lives of workers but could also cause a devastating disaster for the entire factory.

[0004] Therefore, in response to the problems of down waste, worker health damage, and fire safety risks in the traditional production process of down jackets and down comforters, there is an urgent need to develop a new production method and equipment for down jackets and down comforters that can effectively improve the production environment, reduce down waste, protect worker health, and eliminate fire safety hazards. Summary of the Invention

[0005] This utility model proposes an air emission purification device for down production workshops, which has multiple advantages such as down absorption, sorting and air purification, in order to solve the problems of down waste, worker health damage and fire safety risks in the down production process mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an air emission purification device for a down production workshop, comprising: a down production workshop, with a tempered floor raised by supports on the ground, the surface of which has down-absorbing holes; an underground down-absorbing system installed on the floor of the down production workshop and below the tempered floor, the underground down-absorbing system being able to suck up the surface of the tempered floor as well as airborne down and dust; a central recovery system, fixed to the tempered floor and located on the outer side of the down production workshop, for grading and sorting down and filtering dust; and a rear-end filtration system, fixed to the tempered floor and located on the outer side of the down production workshop. One side of the central recovery system is used for air purification and to provide power for the underground down suction system. The underground down suction system includes: a down suction support frame, with an outer pressure plate fastened to one side by bolts, and an intermediate pad clamped between the outer pressure plate and the down suction support frame; a movable gate, movably arranged on the side of the down suction support frame and located between the outer pressure plate and the down suction support frame; air suction grooves are opened on the surfaces of both the down suction support frame and the outer pressure plate; an adjusting cylinder, fixed to the end of the down suction support frame, with its output end fixedly connected to the movable gate; the area between two adjacent underground down suction systems forms an airflow delivery channel, and the top of the airflow delivery channel is the unperforated part of the tempered floor.

[0007] Furthermore, the intermediate pad is a hollow rectangular plate.

[0008] Furthermore, the air intake groove is a rectangular groove.

[0009] Furthermore, the surface of the tempered floor has connecting air channels that communicate with the airflow delivery channels.

[0010] Furthermore, the central recovery system includes: a housing, with an air outlet pipe and a recovery air inlet pipe fixedly installed on two opposite sides, the recovery air inlet pipe being connected to a connecting air trough; and a filter cartridge installed in the middle of the housing to separate down and dust.

[0011] Furthermore, the filter cartridge has a filtration gap between 40 and 80 mesh.

[0012] Furthermore, an inclined plate located at the bottom of the filter cartridge is fixedly installed inside the casing, and a main amplifier is fixed inside the casing at the bottom of the inclined plate. The main amplifier can draw the down collected on the inclined plate into the primary recycling chamber arranged inside the casing. A bidirectional amplifier is installed above the primary recycling chamber, and a primary recycling amplifier and a secondary recycling amplifier arranged vertically are fixedly installed on the side of the casing.

[0013] Furthermore, the back-end filtration system includes: a fan assembly with a purified air inlet pipe installed at the input end, and a sealed connection between the purified air inlet pipe and the air outlet pipe; an airflow dispersion seat fixed in the middle of the inner side of the back-end filtration system, and a water pool with water medium placed in the outer side of the airflow dispersion seat; a water-proof baffle for filtering water droplets installed above the airflow dispersion seat, and an activated carbon plate for adsorbing air odors installed above the water-proof baffle; and a silencer, located at the very top of the back-end filtration system and connected to the down production workshop.

[0014] This utility model has the following beneficial effects:

[0015] This invention provides an air purification device for down production workshops. The device utilizes an underground down-collecting system installed beneath the tempered steel floor. This system possesses powerful suction, effectively absorbing scattered down on the floor and preventing the dust and down buildup common in traditional workshops. The sucked-in down is then efficiently transported to a central recycling system. During this process, the device employs amplifier technology for fine sorting of the down, ensuring that both flying and fallen down are recycled, thus significantly reducing down waste and lowering production costs.

[0016] Meanwhile, the air purification device comprehensively purifies the accompanying air while absorbing down. The air generated during absorption first passes through a precision filtration system at the back end, which uses water filtration technology to effectively remove fine down fibers and other impurities. Subsequently, the air further passes through an activated carbon deodorization module, utilizing the powerful adsorption capacity of activated carbon to effectively remove odor molecules, ensuring that the air released into the down production workshop is fresher and harmless.

[0017] This series of innovative designs not only significantly improves the working environment in down production workshops and reduces the health risks to workers caused by long-term inhalation of down fibers, but also effectively enhances the overall hygiene level of the workshops, providing a strong guarantee for the company's safe production and sustainable development. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles disclosed herein.

[0019] The present invention can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0020] Figure 1 is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0021] Figure 2 is a schematic diagram of the internal three-dimensional structure of the down production workshop in this utility model;

[0022] Figure 3 is a plan view showing the relative positions between the tempered floor and the underground down-absorbing system in this utility model;

[0023] Figure 4 is a three-dimensional structural diagram of the underground down-absorbing system in this utility model;

[0024] Figure 5 is an exploded schematic diagram of the underground down-absorbing system in this utility model;

[0025] Figure 6 is a schematic diagram of the location and three-dimensional structure of each component in the central recycling system of this utility model;

[0026] Figure 7 is a schematic diagram of the position and three-dimensional structure of each component in the back-end filtration system of this utility model.

[0027] In the diagram: 1. Down production workshop; 2. Central recycling system; 200. Recycling inlet pipe; 201. Inclined plate; 202. Filter cartridge; 203. Outlet pipe; 204. Main amplifier; 205. Primary recycling bin; 206. Two-way amplifier; 207. Primary recycling amplifier; 208. Secondary recycling amplifier; 209. Housing; 3. Rear-end filtration system; 300. Purification inlet pipe; 301. Fan assembly; 302. Water tank; 303. Airflow dispersion seat; 304. Water-proof baffle; 305. Activated carbon plate; 306. Silencer; 4. Control console; 5. Tempered glass floor; 500. Connecting air channel; 501. Floor down suction hole; 6. Underground down suction system; 601. Down suction support frame; 602. External pressure plate; 603. Adjusting cylinder; 604. Movable gate; 605. Airflow conveying channel; 606. Intermediate pad; 607. Suction slot. Detailed Implementation

[0028] 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.

[0029] As shown in Figure 1, the air purification device for the down production workshop mentioned in this application mainly consists of three parts: the down production workshop 1, the central recycling system 2, and the back-end filtration system 3. The down production workshop 1 is a key area for down processing, and its internal air quality significantly impacts the physical and mental safety of the operators. To ensure a relatively clean environment in the down production workshop 1, as shown in Figure 2, the floor of the down production workshop 1 has a tempered steel floor 5 that is raised upwards using supports. The tempered steel floor 5 has a perforated design and can bear a weight of 200-300 kg per square meter. Simultaneously, floor-absorbing holes 501 can be opened on the surface of the tempered steel floor 5 according to the on-site working environment.

[0030] An underground down-absorbing system 6 is installed on the floor of the down production workshop 1 and below the tempered floor 5. As can be seen from Figures 3-5, the underground down-absorbing system 6 uses a down-absorbing support frame 601 as the main body for down absorption. An outer pressure plate 602 is fastened to one side of the support frame 601 by bolts. An intermediate pad 606 is clamped between the outer pressure plate 602 and the down-absorbing support frame 601. As can be seen from Figure 5, the intermediate pad 606 is a hollow rectangular plate. It can provide space for the movable gate 604, which is movably arranged on the side of the down-absorbing support frame 601, to ensure that the movable gate 604 can only move horizontally back and forth along the down-absorbing support frame 601. Based on this, suction grooves 607 are provided on the surfaces of both the down-collecting support frame 601 and the outer pressure plate 602. The suction grooves 607 are preferably rectangular grooves. The end of the down-collecting support frame 601 has an adjusting cylinder 603 connected by bolts. The output end of the adjusting cylinder 603 is connected to the movable gate 604. The adjusting cylinder 603 can be a pneumatic cylinder or a hydraulic cylinder. The control console 4 fixed outside the down production workshop 1 can be used to adjust the pneumatic or hydraulic cylinder, so that the output end of the adjusting cylinder 603 pushes the movable gate 604 to move horizontally back and forth. During the movement, the movable gate 604 can block / open the outer pressure plate 602, which can ensure that each piece of down can be collected by the down-collecting support frame 601. Since the underground down-collecting system 6 is arranged vertically, as can be seen from Figure 3, the area between the two underground down-collecting systems 6 constitutes an airflow conveying channel 605, and the top of the airflow conveying channel 605 is the unperforated part of the tempered floor 5. When suction is applied to the airflow delivery channel 605, the down on the surface of the tempered floor 5 is drawn in sequentially through the floor down suction holes 501 and the suction groove 607 before entering the airflow delivery channel 605. Furthermore, in practical applications, the control console 4 operates the corresponding adjusting cylinder 603, enabling suction to be applied to all areas of the tempered floor 5, avoiding any dead zones.

[0031] As shown in Figures 1, 2, 4, and 6, the central recovery system 2 is fixedly installed on the tempered floor 5 and located on the outer side of the down production workshop 1. The surface of the tempered floor 5 has connecting air channels 500 that communicate with all airflow conveying channels 605. As shown in Figures 2 and 6, the central recovery system 2 includes a housing 209. An exhaust pipe 203 and a recovery intake pipe 200 are fixedly installed on two opposite sides of the housing 209, respectively. Generally, the exhaust pipe 203 is connected to the inlet of the fan, thereby creating suction inside the housing 209, ultimately generating suction at the recovery intake pipe 200. The recovery intake pipe 200 communicates with the connecting air channels 500, ensuring that the down and dust captured and collected in the underground down suction system 6 can be transported into the housing 209. During the conveying process, multiple filter cartridges 202 are fixedly installed in the middle of the casing 209. The filtration gap of the filter cartridges 202 is between 40 mesh and 80 mesh, ensuring that when the airflow carrying down passes through, the down is isolated on its outer side, and the dust is sucked out from the air outlet pipe 203. At the same time, an inclined plate 201 located at the bottom of the filter cartridges 202 is fixedly installed inside the casing 209. By applying vibration or reverse high-pressure airflow to the filter cartridges 202, the down in the filter cartridges 202 can be dislodged. For details on high-pressure backflushing, please refer to the high-pressure backflushing of current baghouse dust collectors. A main amplifier 204 is fixed inside the casing 209 and located at the bottom of the inclined plate 201. The main amplifier 204 can suck the down collected on the inclined plate 201 into the primary recovery chamber 205 arranged inside the casing 209 for buffering. A bidirectional amplifier 206 is installed above the primary recycling bin 205. The bidirectional amplifier 206 can blow the down collected in the primary recycling bin 205 upward. Since the down rises to different heights due to its weight, a primary recycling amplifier 207 and a secondary recycling amplifier 208 are fixedly installed on the side of the housing 209 and arranged vertically. The primary recycling amplifier 207 and the secondary recycling amplifier 208 can suck the down at the corresponding height outward, completing the down grading and recovering all the useful down into the cloth bag or external equipment for direct use.

[0032] Since the airflow drawn into the exhaust pipe 203 contains down and dust, and the material used to make down is mainly duck feathers, it will have a certain earthy smell. In order to make the air returning to the down production workshop 1 relatively pure, as can be seen from Figures 1 and 7, a rear-end filtration system 3 is fixedly installed on the tempered floor 5 on one side of the central recovery system 2. The rear-end filtration system 3 includes a fan assembly 301 for drawing airflow. The fan assembly 301 is a centrifugal fan, and the model and power can be purchased directly from the market according to actual needs. The fan assembly 301 is equipped with a purification air inlet pipe 300 at its input end. The purification air inlet pipe 300 and the air outlet pipe 203 are connected by a flange seal. The output end of the fan assembly 301 delivers airflow vertically upward. The airflow dispersion seat 303 is fixed in the middle of the inner side of the rear filter system 3. The table-shaped design of the airflow dispersion seat 303 causes the airflow entering the inner side of the airflow dispersion seat 303 to tend to turn downward. Finally, the airflow passes through the water pool 302 set on the outer side of the airflow dispersion seat 303. The water pool 302 contains water medium. When the dust-laden airflow passes through the water medium in the water pool 302, water pre-filtration can be achieved first. Afterwards, the airflow passes upward through the water-proof baffle 304 arranged above the airflow dispersion seat 303. The small holes in the water-proof baffle 304 can prevent large water droplets from being transported upward. An activated carbon plate 305 is arranged above the water-proof baffle 304. The activated carbon plate 305 can adsorb air and prevent the air from producing odors. Finally, the purified airflow will be transported back to the down production workshop 1 through the silencer 306, thereby ensuring that the down production workshop 1 has a relatively clean environment.

[0033] When this invention is in operation, the control console 4 controls the fan assembly 301 to start working, drawing air through the purification inlet pipe 300. After passing through the outlet pipe 203, the recovery inlet pipe 200, the connecting air trough 500, and the underground down suction system 6, the air in the air delivery channel 605 is drawn in. During this process, the control console 4 controls the corresponding regulating cylinder 603 to start working. The regulating cylinder 603 controls the corresponding movable gate 604 to open and close the suction trough 607, thereby generating suction force on the floor down suction holes 501 above this area, ultimately absorbing the surface of the floor down suction holes 501 and the flying down.

[0034] Down absorbed by the intake pipe 200 first passes through the filter cartridge 202, where it is used to filter down and dust. Down that falls from the filter cartridge 202 then slides down to the main amplifier 204. The main amplifier 204 then draws down into the primary recovery chamber 205 for buffering. Down entering the primary recovery chamber 205 is attracted and blown upward by the bidirectional amplifier 206. The size of the down affects the actual height it rises. Therefore, turning on the corresponding primary recovery amplifier 207 or secondary recovery amplifier 208 can achieve graded recovery of down of different sizes.

[0035] Dust-laden air entering the purified air inlet pipe 300 through the air outlet pipe 203 is blown vertically upwards to the inside of the airflow dispersion seat 303. The airflow dispersion seat 303 then folds the airflow back into the water medium in the water tank 302. After passing through the water medium, the air passes through the water-proof baffle 304, which prevents water droplets from being transported upwards. When the airflow passes through the water-proof baffle 304 and then passes through the activated carbon plate 305, the activated carbon plate 305 adsorbs and purifies the airflow, making the air purer. Finally, the airflow is discharged from the silencer 306 into the down production workshop 1, thereby improving the environment in the down production workshop 1.

Claims

1. An air emission purification device for a down production workshop, characterized in that, include: In the down production workshop (1), there is a tempered floor (5) that is raised by a support frame. The surface of the tempered floor (5) is provided with floor down suction holes (501). An underground down suction system (6) is installed on the floor of the down production workshop (1) and below the tempered floor (5). The underground down suction system (6) can suck up the surface of the tempered floor (5) as well as the flying down and dust. The central recovery system (2) is fixed on the tempered floor (5) and located on the outside of the down production workshop (1). It is used to achieve the grading and sorting of down and the filtration of dust. The rear filtration system (3) is fixed on the tempered floor (5) and located on one side of the central recovery system (2). It is used to achieve air purification and provide power for the suction of the underground down suction system (6). The underground down suction system (6) includes Includes: a down-absorbing support frame (601), with an outer pressure plate (602) fastened to one side by bolts, and an intermediate pad (606) clamped between the outer pressure plate (602) and the down-absorbing support frame (601); a movable gate (604), which is movably arranged on the side of the down-absorbing support frame (601) and located between the outer pressure plate (602) and the down-absorbing support frame (601); both the down-absorbing support frame (601) and the outer pressure plate (602) have air-absorbing grooves (607) on their surfaces; an adjusting cylinder (603), which is fixed at the end of the down-absorbing support frame (601), and its output end is fixedly connected to the movable gate (604); the area between two adjacent underground down-absorbing systems (6) forms an airflow conveying channel (605), and the top of the airflow conveying channel (605) is the unperforated part of the tempered floor (5).

2. The air emission purification device for down production workshops according to claim 1, characterized in that, The intermediate pad (606) is a hollow rectangular plate.

3. The air emission purification device for down production workshops according to claim 1, characterized in that, The air intake groove (607) is a rectangular groove.

4. The air emission purification device for down production workshops according to claim 1, characterized in that, The surface of the tempered floor (5) is provided with a connecting air groove (500) that communicates with the airflow conveying channel (605).

5. The air emission purification device for down production workshops according to claim 4, characterized in that, The central recycling system (2) includes: a housing (209), on which an air outlet pipe (203) and a recycling air inlet pipe (200) are fixedly installed on two opposite sides, and the recycling air inlet pipe (200) is connected to a connecting air trough (500); and a filter cartridge (202), installed in the middle of the housing (209) for separating down and dust.

6. The air emission purification device for down production workshops according to claim 5, characterized in that, The filter cartridge (202) has a filtration gap between 40 mesh and 80 mesh.

7. The air emission purification device for down production workshops according to claim 6, characterized in that, An inclined plate (201) located at the bottom of the filter cartridge (202) is fixedly installed inside the housing (209). A main amplifier (204) is fixed inside the housing (209) and located at the bottom of the inclined plate (201). The main amplifier (204) can suck the down gathered on the inclined plate (201) into the primary recovery chamber (205) arranged inside the housing (209). A bidirectional amplifier (206) is provided above the primary recovery chamber (205). A primary recovery amplifier (207) and a secondary recovery amplifier (208) arranged vertically are fixedly installed on the side of the housing (209).

8. The air emission purification device for down production workshops according to claim 6, characterized in that, The back-end filtration system (3) includes: a fan assembly (301), with a purification air inlet pipe (300) installed at the input end, and the purification air inlet pipe (300) and the air outlet pipe (203) are sealed together; an airflow dispersion seat (303) is fixed in the middle of the inner side of the back-end filtration system (3), and a water pool (302) is provided on the outer side of the airflow dispersion seat (303), with water medium placed in the water pool (302); a water-proof baffle (304) for filtering water droplets is provided above the airflow dispersion seat (303), and an activated carbon plate (305) for adsorbing air odors is provided above the water-proof baffle (304); and a silencer (306) is located at the top of the back-end filtration system (3) and is connected to the down production workshop (1).