Air step-by-step purifying device for formaldehyde production

Through a three-stage purification structure and an automatic cleaning system, the problems of poor purification effect and dust dispersion in formaldehyde production equipment have been solved, achieving a more thorough air purification and cleaning effect.

CN118767572BActive Publication Date: 2026-02-17SHANDONG LIANYI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202410977815.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2026-02-17
Estimated Expiration
2044-07-22

AI Technical Summary

Technical Problem

Existing formaldehyde purification devices used in production processes often fail to achieve effective purification through filters, and dust is easily dispersed during cleaning, affecting the internal environment and effectiveness of the purifier.

Method used

It adopts a three-stage purification structure, including a first-stage hollow mesh filter, a second-stage activated carbon filler, and a third-stage non-woven fabric filter. Combined with a drive motor driving a threaded screw and a cleaning brush for automatic cleaning, it uses atomizing nozzles to spray water to suppress dust.

Benefits of technology

It achieves a more thorough air purification effect and effectively prevents dust from being scattered during the cleaning process, thus improving the purifier's operating environment and purification efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of air step-by-step purification devices for formaldehyde production, and relates to air purification technical field, specifically a kind of air step-by-step purification devices for formaldehyde production, including purification tank, the side outside the purification tank is provided with air inlet, the inside of the purification tank is installed with filter plate, and the inside of filter plate is installed with primary filter screen, the top of filter plate is installed with filter purification plate, and the inside of filter purification plate is installed with secondary purification plate and tertiary purification plate respectively;The outside of sealing block is connected with telescopic push rod;The upper end surface of translation plate is connected with cleaning brush, both sides of translation plate are provided with nut block, and the inside of nut block is installed with threaded lead screw, one end of threaded lead screw is connected with driving motor.The air step-by-step purification devices for formaldehyde production have telescopic push rod, which can drive translation plate to move horizontally, so that the primary filter screen can be shielded, and dust is prevented from floating upwards.
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Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically to an air purification device for formaldehyde production. Background Technology

[0002] Formaldehyde, also known as methanal, is an organic compound. It is a colorless gas, difficult to detect at low concentrations, and easily masked by other odors, such as those found in air fresheners. At higher concentrations, it has a strong, pungent, and suffocating odor, irritating the eyes and nose. Formaldehyde is currently a toxic gas that seriously endangers human health, and is frequently found in substandard furniture and decoration materials. Long-term exposure to high concentrations of formaldehyde may cause dizziness, headaches, tearing, nausea, vomiting, coughing, chest tightness, and even leukemia. Formaldehyde has wide applications in the petrochemical, pharmaceutical, textile, biochemical, energy, and transportation industries. It can be used as a disinfectant and preservative, and also in the production of various products such as phenolic resin, urea-formaldehyde resin, melamine resin, hexamethylenetetramine, and pentaerythritol. The formaldehyde production process requires air purification, necessitating the use of a formaldehyde production purification device.

[0003] Existing formaldehyde purification devices typically install filters at the air inlet to isolate impurities and particles in the air; however, filters alone are insufficient to achieve the desired purification effect.

[0004] To ensure the effectiveness of the filter, it usually needs to be cleaned regularly. Generally, a brush is used to remove dust and other debris from the filter. However, during the cleaning process, dust may float upwards, affecting the environment inside the air purifier and its purification effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an air cascade purification device for formaldehyde production, which solves the problem mentioned in the background art that existing purification devices for formaldehyde production typically install filters at the air inlet to isolate impurities and particles in the air, but filters alone are insufficient to achieve the required purification effect.

[0006] To ensure the effectiveness of the filter, it usually needs to be cleaned regularly. Generally, a brush is used to remove dust and other debris from the filter. However, during the cleaning process, dust may float upwards, affecting the environment inside the air purifier and its purification effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an air purification device for formaldehyde production, comprising:

[0008] The purification box has an air inlet on one side outside the purification box, a filter plate is installed inside the purification box, and a primary filter screen is installed inside the filter plate. A purification filter plate is installed above the filter plate, and a secondary purification filter plate and a tertiary purification filter plate are installed inside the purification filter plate respectively. An exhaust port is provided above the purification filter plate.

[0009] A sealing block is installed on both sides above the filter plate, and a telescopic push rod is connected to the outer side of the sealing block;

[0010] A translation plate is installed below the filter plate. A cleaning brush is connected to the upper end face of the translation plate. Nut blocks are provided on both sides of the translation plate, and threaded screws are installed inside the nut blocks. One end of the threaded screws is connected to a drive motor.

[0011] The discharge port is located below the translation plate. Atomizing nozzles are installed on both sides below the discharge port. Water supply pipes are connected to the outer sides of the atomizing nozzles. Water storage tanks are installed on both sides below the purification box, and a delivery pump is installed on the water storage tank.

[0012] Optionally, the primary filter screen is fixedly connected to the filter plate, and the primary filter screen has a hollow mesh structure.

[0013] Optionally, the filter plate and the filter purification plate are parallel to each other, and the secondary purification plates are symmetrically distributed about the horizontal center line of the tertiary purification plate.

[0014] Optionally, the telescopic push rod and the sealing block form a telescopic structure, and the sealing block is slidably connected to the filter plate, and the sealing block is parallel to the primary filter screen (4).

[0015] Optionally, the drive motor and the threaded screw form a rotating structure, and the threaded screw passes through the interior of the nut block.

[0016] Optionally, the nut block is fixedly connected to the translation plate, and the cleaning brush is in close contact with the translation plate.

[0017] Optionally, the discharge port is further provided with:

[0018] A dust collection box is installed below the discharge port, the dust collection box is positioned corresponding to the discharge port, and the dust collection box and the purification box are detachably connected.

[0019] Optionally, the water storage tank is connected to the atomizing nozzles via a delivery pump and a water pipeline, and the atomizing nozzles are symmetrically distributed about the vertical center line of the dust collection box.

[0020] Optionally, the purification box also includes:

[0021] A sealing slide plate is installed at one end outside the purification box, and the sealing slide plate is slidably engaged with the purification box.

[0022] This invention provides an air purification device for formaldehyde production, which has the following beneficial effects:

[0023] This formaldehyde production air purification device features a primary filter within a filter plate, which traps impurities and dust from the air. A secondary filter plate contains activated carbon filler to remove harmful impurities. A tertiary filter plate, made of non-woven fabric, removes minute impurities. Through the combination of filters, non-woven fabric, and activated carbon, a tiered purification process is achieved, resulting in a more thorough purification effect. This addresses the problem that existing formaldehyde production purification devices typically install filters at the air inlet to isolate airborne particles, but these filters alone are insufficient to achieve the desired purification effect.

[0024] The formaldehyde production air cascade purification device is equipped with a drive motor that can drive the threaded screw to rotate. The rotating threaded screw can move the nut block, the translation plate, and the cleaning brush horizontally. The translational cleaning brush can wipe and clean the primary filter screen, thereby removing dust from the screen surface.

[0025] This formaldehyde production air purification device is equipped with a telescopic push rod that can move a horizontal plate to cover the primary filter, preventing dust from rising. This solves the problem that to ensure the filter's effectiveness, it is usually necessary to clean it regularly. Generally, a brush is used to remove dust from the filter, but during the cleaning process, dust is easily blown upwards, affecting the environment inside the air purifier and the purification effect.

[0026] The formaldehyde production air cascade purification device is equipped with a delivery pump and a water pipeline that can extract water from the water storage tank and deliver it to the atomizing nozzle. The atomizing nozzle can atomize the water and spray it out, thereby wetting the falling dust and making it easier for the dust to fall. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the external structure of the purification box of the present invention;

[0029] Figure 3 This is a bottom view of the filter plate of the present invention.

[0030] Figure 4 This is a schematic diagram of the connection between the translation plate and the nut block in this invention;

[0031] Figure 5 This is a rear view structural diagram of the purification box of the present invention.

[0032] In the diagram: 1. Purification box; 2. Air inlet; 3. Filter plate; 4. Primary filter screen; 5. Filter purification plate; 6. Secondary purification plate; 7. Tertiary purification plate; 8. Exhaust port; 9. Sealing block; 10. Telescopic push rod; 11. Translation plate; 12. Cleaning brush; 13. Nut block; 14. Threaded screw; 15. Drive motor; 16. Discharge port; 17. Dust collection box; 18. Atomizing nozzle; 19. Water storage tank; 20. Conveyor pump; 21. Water supply pipe; 22. Sealing slide plate. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Please see Figure 1-3An air purification device for formaldehyde production includes: a purification box 1, an air inlet 2 on one side of the purification box 1, a filter plate 3 installed inside the purification box 1, and a primary filter 4 installed inside the filter plate 3, the primary filter 4 being fixedly connected to the filter plate 3, and the primary filter 4 having a perforated mesh structure; the primary filter 4 inside the filter plate 3 is a primary purification structure, capable of trapping impurities and dust in the air; a purification filter plate 5 installed above the filter plate 3, and a secondary purification plate 6 and a tertiary purification plate 7 respectively installed inside the purification filter plate 5, with a [missing information - likely a typo, should be "not specified"]. Exhaust port 8; Filter plate 3 and filter purification plate 5 are parallel to each other, and the secondary purification plate 6 is symmetrically distributed about the horizontal center line of the tertiary purification plate 7; The secondary purification plate 6 has built-in activated carbon filler, which can remove harmful impurities in the air, and the tertiary purification plate 7 is a non-woven fabric filter mechanism, which can remove tiny impurities in the air. Thus, through the filter screen, non-woven fabric, and activated carbon, a stepped purification can be formed to achieve a more thorough purification effect; Dust collection box 17 is installed below the discharge port 16, and the position of dust collection box 17 corresponds to that of discharge port 16. The dust collection box 17 is detachably connected to the purification box 1; Dust collection box 17 can collect dust and impurities that are brushed off and fall during the filtration process; the discharge port 16 is located below the translation plate 11, and atomizing nozzles 18 are installed on both sides below the discharge port 16. Water supply pipes 21 are connected to the outside of the atomizing nozzles 18. Water storage tanks 19 are installed on both sides below the outside of the purification box 1, and a delivery pump 20 is installed on the water storage tank 19; the water storage tank 19 is connected to the atomizing nozzles 18 through the delivery pump 20 and the water supply pipes 21, and the atomizing nozzles 18 are symmetrically distributed about the vertical center line of the dust collection box 17; the delivery pump 20 and the water supply pipes 21 can collect dust and impurities that fall during the filtration process; Water is drawn from the water tank 19 and delivered to the atomizing nozzle 18. The atomizing nozzle 18 atomizes the water and sprays it out, thus wetting the falling dust and making it easier for the dust to fall. The sealing block 9 is installed on both sides above the filter plate 3. The outer side of the sealing block 9 is connected to the telescopic push rod 10. The telescopic push rod 10 and the sealing block 9 form a telescopic structure, and the sealing block 9 is slidably connected to the filter plate 3. The sealing block 9 is parallel to the primary filter screen 4. The telescopic push rod 10 can drive the translation plate 11 to move horizontally, thereby blocking the primary filter screen 4 and preventing dust from floating upward.

[0037] Please see Figure 3-5An air purification device for formaldehyde production includes: a translation plate 11 installed below a filter plate 3; a cleaning brush 12 connected to the upper surface of the translation plate 11; nut blocks 13 on both sides of the translation plate 11; and a threaded rod 14 installed inside the nut block 13, with one end of the threaded rod 14 connected to a drive motor 15; the drive motor 15 and the threaded rod 14 form a rotating structure, and the threaded rod 14 passes through the interior of the nut block 13; the nut block 13 is fixedly connected to the translation plate 11, and the cleaning brush 12 is tightly attached to the translation plate 11. The filter is tightly fitted; the drive motor 15 can drive the threaded screw 14 to rotate, and the rotating threaded screw 14 can move the nut block 13, the translation plate 11, and the cleaning brush 12 horizontally. The translational cleaning brush 12 can wipe and clean the primary filter screen 4, thereby removing dust from the screen surface; the sealing slide plate 22 is installed at one end outside the purification box 1, and the sealing slide plate 22 is slidably engaged with the purification box 1; the sealing slide plate 22 can slide relative to the purification box 1, so that when needed, the purification box 1 can be opened and the filter purification plate 5 can be taken out for replacement.

[0038] In summary, this formaldehyde production air purification device, during use, firstly introduces air into the purification chamber 1 through the air inlet 2. The first-stage filter 4 within the filter plate 3 traps impurities and dust in the air. The air is then purified by the purification filter plate 5 and discharged through the exhaust port 8. The second-stage purification plate 6 contains activated carbon filler to remove harmful impurities from the air. The third-stage purification plate 7 is a non-woven fabric filter mechanism that removes minute impurities from the air. Thus, the filter, non-woven fabric, and activated carbon form a tiered purification process, achieving a more thorough purification effect. Secondly, the first-stage filter 4 is cleaned periodically by activating the telescopic push rod 10. The telescopic push rod 10 moves the translation plate 11 horizontally, thus covering the first-stage filter 4 to prevent dust from rising. Then… Start the drive motor 15, which drives the threaded screw 14 to rotate. The rotating threaded screw 14 moves the nut block 13, the translation plate 11, and the cleaning brush 12 horizontally. The cleaning brush 12 wipes and cleans the primary filter screen 4, removing dust from the screen surface. The dust brushed off falls into the dust collection box 17 through the discharge port 16. At the same time, start the conveying pump 20. The conveying pump 20 and the water supply pipe 21 draw water from the water storage tank 19 and deliver it to the atomizing nozzle 18. The atomizing nozzle 18 atomizes the water and sprays it out, thus wetting the fallen dust and making it easier for the dust to fall off. When the filter purification plate 5 needs to be replaced later, slide the sealing slide plate 22 against the purification box 1 to open the purification box 1 and take out the filter purification plate 5.

[0039] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An air step purification device for formaldehyde production, characterized by, Include: The purification tank (1), the side outside the purification tank (1) is provided with air inlet (2), the inside of the purification tank (1) is installed filter plate (3), and the inside of filter plate (3) is installed primary filter screen (4), the top of filter plate (3) is installed filter purification plate (5), and the inside of filter purification plate (5) is installed respectively secondary purification plate (6) and tertiary purification plate (7), the top of filter purification plate (5) is provided with exhaust port (8); Sealing block (9) is installed in the both sides above filter plate (3), the outside of sealing block (9) is connected with telescopic push rod (10); Translation plate (11) is installed below filter plate (3), the upper end surface of translation plate (11) is connected with cleaning brush (12), both sides of translation plate (11) are provided with nut block (13), and the inside of nut block (13) is installed with threaded lead screw (14), one end of threaded lead screw (14) is connected with drive motor (15); The blanking port (16) is provided below the translation plate (11), the atomizing nozzle (18) is installed below the both sides of the blanking port (16), the outside of the atomizing nozzle (18) is connected with the water delivery pipeline (21), the water storage tank (19) is installed below the both sides of the outside of the purification tank (1), and the water storage tank (19) is installed with the delivery pump (20).

2. The air step purification device for formaldehyde production according to claim 1, characterized in that, The primary filter screen (4) is fixedly connected with the filter plate (3), and the primary filter screen (4) is a hollow mesh structure.

3. The air step purification device for formaldehyde production according to claim 1, characterized in that, The filter plate (3) and the filter purification plate (5) are parallel to each other, the secondary purification plate (6) is symmetrically distributed about the horizontal center line of the tertiary purification plate (7).

4. The air step purification device for formaldehyde production according to claim 1, characterized in that, The telescopic push rod (10) and the sealing block (9) constitute a telescopic structure, the sealing block (9) and the filter plate (3) are slidably connected, and the sealing block (9) is parallel to the primary filter screen (4).

5. The air step purification device for formaldehyde production according to claim 1, characterized in that, The drive motor (15) and the threaded lead screw (14) constitute a rotating structure, and the threaded lead screw (14) penetrates the inside of the nut block (13).

6. The air step purification device for formaldehyde production according to claim 1, characterized in that, The nut block (13) and the translation plate (11) are fixedly connected, and the cleaning brush (12) is closely attached to the translation plate (11).

7. The air step purification device for formaldehyde production according to claim 1, characterized in that, The blanking port (16) is also provided with: The dust collection tank (17) is installed below the blanking port (16), the dust collection tank (17) corresponds to the position of the blanking port (16), and the dust collection tank (17) is detachably connected with the purification tank (1).

8. The air step purification device for formaldehyde production according to claim 1, characterized in that, The water storage tank (19) is connected with the atomizing nozzle (18) through the delivery pump (20) and the water delivery pipeline (21), and the atomizing nozzle (18) is symmetrically distributed about the vertical center line of the dust collection tank (17).

9. The air step purification device for formaldehyde production according to claim 1, characterized in that, The purification tank (1) is also provided with: The sealing slide plate (22) is installed at one end outside the purification tank (1), and the sealing slide plate (22) and the purification tank (1) are slidably connected.

Citation Information

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