A primary filtering device for a fresh air system

Abstract

The utility model discloses a kind of new air system primary filter device, including main unit, fan unit, deironing unit and ash removal unit, main unit includes air duct shell and dust box, air duct is formed in air duct shell, the air inlet and the air outlet of the communication air duct are formed in the both ends of air duct shell, the bottom surface of air duct shell forms the ash outlet of the communication air duct, dust box is movably arranged in the directly below of ash outlet;Fan unit is arranged in air duct to drive airflow to move from air inlet to air outlet;Deironing unit is arranged in air duct and is located in the directly above of ash outlet, and deironing unit includes multiple magnetic rods;Ash removal unit is arranged in air duct and is located in the directly above of ash outlet.The new air system primary filter device provided by the utility model has deironing unit and ash removal unit, can remove most of iron filings and dust in air, reduce the processing burden of new air system, thereby prolong the service life of filter screen of new air system, reduce use cost.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically to a primary filtration device for a fresh air system. Background Technology

[0002] The crushing workshop is the core hub of a modern end-of-life plant, enabling resource recycling. Here, pre-treated scrapped vehicles or equipment are fed into powerful crushers, where they are thoroughly pulverized by high-speed rotating hammers, breaking down the complex whole into mixed fragments. This not only significantly reduces the volume of materials but also achieves basic separation of various materials such as iron, aluminum, and copper. Subsequently, through processes such as magnetic separation, high-value steel is efficiently extracted, becoming a high-quality raw material for steelmaking, while the remaining tailings lay the foundation for subsequent fine recycling of non-ferrous metals.

[0003] Obviously, crushing workshops generate a large amount of dust. To protect workers' health, crushing workshops are generally equipped with fresh air systems to remove dust from the air and improve air quality. However, due to the excessive dust content in crushing workshops, the filters of existing fresh air systems become clogged in a short period of time, requiring frequent filter replacements and resulting in high operating costs. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a primary filtration device for a fresh air system to solve the technical problem that existing fresh air systems cannot meet the high dust levels in crushing workshops.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a primary filtration device for a fresh air system, comprising: a main unit, a fan unit, an iron removal unit, and an ash removal unit. The main unit includes a duct shell and a dust collection box. A duct is formed inside the duct shell. An air inlet and an air outlet are formed at both ends of the duct shell to connect the duct. A dust discharge port is formed on the bottom surface of the duct shell to connect the duct. The dust collection box is movably disposed directly below the dust discharge port. The fan unit is disposed in the air duct to drive the airflow from the air inlet to the air outlet; The iron removal unit is installed inside the air duct and located directly above the ash discharge port. The iron removal unit includes multiple magnetic rods. The dust removal unit is located inside the air duct and directly above the dust discharge port. The dust removal unit includes multiple vertically arranged folding plates that divide the air duct into multiple curved flow channels. When the airflow passes through the flow channels, it will hit the folding plates, causing some dust to fall into the dust collection box.

[0006] In some embodiments, the iron removal unit, ash removal unit, and fan unit are arranged sequentially along the airflow direction.

[0007] In some embodiments, a plurality of insertion holes are formed on the duct housing, and the magnetic rod is movably inserted into the insertion holes.

[0008] In some embodiments, along the direction of airflow, the iron removal unit forms multiple rows of magnetic rods, with adjacent rows of magnetic rods arranged in different directions.

[0009] In some embodiments, the iron removal unit further includes a plurality of scraping mechanisms arranged one-to-one with the insertion holes. Each scraping mechanism includes a mounting plate, a spring, and scraping claws. The mounting plate is fixedly connected to the inner wall of the air duct housing. The spring connects the mounting plate and the scraping claws. At least two of the scraping claws cooperate to clamp the magnetic rod.

[0010] In some embodiments, the dust removal unit further includes multiple connecting rods, and the folding plate is fixedly connected to the inner wall of the air duct housing via the connecting rods.

[0011] In some embodiments, the main body unit further includes connecting bodies disposed on two outer surfaces of the air duct housing, with a sliding groove formed on one side of the two connecting bodies facing each other, and the dust collection box being slidably connected to the sliding groove.

[0012] In some embodiments, a mounting groove is formed at the opening of the ash collection box, and a sealing ring is provided in the mounting groove. When the ash collection box is located in the sliding groove, the sealing ring abuts against the edge of the ash discharge port.

[0013] In some embodiments, the main body unit further includes an outer box, the dust collection box is nested inside the outer box, the outer box is slidably connected to the slide groove, and the outer box is magnetic.

[0014] In some embodiments, a blocking unit is further included, which is detachably installed at the air inlet and has a blocking mesh.

[0015] Compared with the prior art, the primary filtration device for the fresh air system provided by this utility model has an iron removal unit and an ash removal unit, which can remove most of the iron filings and dust in the air, improve air quality, reduce the processing burden of the fresh air system, thereby extending the service life of the fresh air system's filter and reducing the cost of use. Attached Figure Description

[0016] Figure 1 This is a front view of the primary filtration device of the fresh air system provided in this embodiment of the utility model; Figure 2 This is an internal top view of the primary filtration device of the fresh air system provided in this embodiment of the utility model; Figure 3 yes Figure 2 Sectional view of section AA; Figure 4 yes Figure 2 Sectional view of section BB; Figure 5 yes Figure 4 A magnified view of a portion of the image. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] To address the technical problem that existing fresh air systems cannot meet the high dust levels in crushing workshops, this invention provides a primary filtration device for fresh air systems, which can perform primary air purification, remove most of the iron filings and dust, and significantly reduce the burden on the fresh air system.

[0019] Please see Figures 1 to 4 , Figure 1 This is a front view of the primary filtration device of the fresh air system provided in this embodiment of the utility model; Figure 2 This is an internal top view of the primary filtration device of the fresh air system provided in this embodiment of the utility model; Figure 3 yes Figure 2 Sectional view of section AA; Figure 4 yes Figure 2 A sectional view of section BB in the middle section. The primary filtration device of the fresh air system includes main unit 1, fan unit 2, iron removal unit 3, and ash removal unit 4.

[0020] The main unit 1 includes a duct shell 11 and a dust collection box 12. A duct 11a is formed inside the duct shell 11. An air inlet and an air outlet connecting the duct 11a are formed at both ends of the duct shell 11. A dust discharge port 11b connecting the duct is formed on the bottom surface of the duct shell 11. The dust collection box 12 is movably disposed directly below the dust discharge port 11b and is used to collect the dust falling from the dust discharge port 11b.

[0021] The fan unit 2 is installed in the air duct 11 to drive the airflow from the air inlet to the air outlet.

[0022] The iron removal unit 3 is located inside the air duct 11 and directly above the ash discharge port 11b. The iron removal unit 3 includes multiple magnetic rods 31, which can adsorb iron filings in the air.

[0023] The dust removal unit 4 is located inside the air duct 11 and directly above the dust discharge port 11b. The dust removal unit 4 includes multiple vertically arranged baffles 41. The baffles 41 divide the air duct 11a into multiple curved channels. When the airflow passes through the channels, it will hit the baffles 41 and slow down, causing some of the dust in the air to fall into the dust collection box 12, thereby reducing the dust content in the air.

[0024] The primary filtration device for a fresh air system provided by this utility model, through the iron removal unit 3 and the dust removal unit 4, can remove most of the iron filings and dust in the air, thus improving air quality. This primary filtration device can be installed at the front end of the fresh air system to perform primary purification treatment on the air entering the system. It can also be installed independently in areas of the workshop with high dust concentrations, serving as a standalone primary purification device. This primary filtration device can reduce the processing load on the fresh air system, thereby extending the service life of the filters and reducing operating costs.

[0025] In some embodiments, the main body unit 1 further includes connecting bodies 13, which are disposed on two outer surfaces of the air duct housing 11 and can be integrally connected with the air duct housing 11. A sliding groove 13a is formed on one side opposite to the two connecting bodies 13, and the dust collection box 12 is slidably connected to the sliding groove 13a. The dust collection box 12 can be pulled out or put back by sliding it along the sliding groove 13a.

[0026] In some embodiments, a mounting groove is formed at the opening of the ash collection box 12, and a sealing ring 14 is provided in the mounting groove. When the ash collection box 12 is located in the slide groove 13a, the sealing ring 14 abuts against the edge of the ash discharge port to achieve a seal, preventing air leakage at the connection between the ash collection box 12 and the air duct housing 11.

[0027] In some embodiments, the main unit 1 further includes an outer box 15, with the dust collection box 12 nested inside the outer box 15. The outer box 15, along with the dust collection box 12, is slidably connected to the slide groove 13a. The outer box 15 is magnetic, capable of magnetically attracting iron filings in the dust, thus fixing the iron filings to other dust particles and stably keeping them within the dust collection box 12 to prevent dust from being dispersed.

[0028] Based on this embodiment, a handle 121 is also provided inside the ash collection box 12, which allows the ash collection box 12 to be easily removed from the outer box 15 during cleaning.

[0029] In some embodiments, the main body unit 1 further includes a support column 16 fixedly connected to the duct housing 11 and the connector 13 to support the duct housing 11 and the dust collection box 12.

[0030] In some embodiments, the iron removal unit 3, the dust removal unit 4, and the fan unit 2 are arranged sequentially along the airflow direction. When air passes through the air duct 11a, the iron filings are first attracted by the magnetic rod 31, then the dust is blocked by the baffle plate 41 and falls into the dust collection box 12, and finally leaves the air duct 11a under the drive of the fan unit 2.

[0031] In some embodiments, the fan unit 2 includes a fan of a suitable type and a connecting support structure, and the fan is powered by an external power source.

[0032] In some embodiments, the duct housing 11 has multiple insertion holes, into which the magnetic rod 31 is movably inserted. The magnetic rod 31 can be pulled out of the insertion hole, and during the pulling process, the iron filings on the magnetic rod 31 are scraped off and fall into the dust collection box 12.

[0033] In some embodiments, along the airflow direction, the iron removal unit 3 forms multiple rows of magnetic rods 31, with adjacent rows of magnetic rods 31 arranged in different directions. For example... Figures 2 to 4 As shown, in this embodiment, the magnetic rods 31 are arranged vertically and horizontally in sequence. In other embodiments, the number of rows of magnetic rods 31 can be further increased; the more rows, the better the effect of adsorbing iron filings.

[0034] Please see Figure 5 , Figure 5 yes Figure 4 The image shows a partial enlarged view. In some embodiments, the iron removal unit 3 further includes multiple scraping mechanisms 32 arranged one-to-one with the insertion holes. Each scraping mechanism 32 includes a mounting plate 321, a spring 322, and scraper claws 323. The mounting plate 321 is fixedly connected to the inner wall of the air duct housing 11. The spring 322 connects the mounting plate 321 and the scraper claws 323, and at least two scraper claws 323 cooperate to clamp the magnetic rod 31. During use, the friction between the magnetic rod 31 and the inner wall of the insertion hole will wear the insertion hole larger, resulting in gaps, causing some iron filings to remain on the magnetic rod 31. By setting up the scraping mechanism 32, the scraper claws 323 actually scrape off the iron filings on the magnetic rod 31. The spring 322 provides clamping force, making the magnetic rod 31 and the scraper claws 323 in close contact, reducing the residue of iron filings.

[0035] In some embodiments, the dust removal unit 4 further includes multiple connecting rods 42, and the folding plate 41 is fixedly connected to the inner wall of the air duct housing 11 via the connecting rods 42.

[0036] See you again Figure 1 In some embodiments, the primary filtration device of this fresh air system further includes a barrier unit 5, which is detachably installed at the air inlet. The barrier unit includes an outer frame and a barrier mesh located in the middle of the outer frame. The barrier mesh prevents large objects from entering the air duct 11a and damaging the various devices inside the air duct 11a.

[0037] The primary filtration device for the fresh air system provided by this utility model can remove most of the iron filings and dust in the air, improve air quality, reduce the processing burden of the fresh air system, thereby extending the service life of the fresh air system's filter and reducing the cost of use.

[0038] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A primary filtration device for a fresh air system, characterized in that, include: The main unit includes a duct shell and a dust collection box. A duct is formed inside the duct shell. An air inlet and an air outlet are formed at both ends of the duct shell to connect the duct. A dust discharge port is formed on the bottom surface of the duct shell to connect the duct. The dust collection box is movably disposed directly below the dust discharge port. A fan unit is disposed within the air duct to drive airflow from the air inlet to the air outlet; An iron removal unit is disposed inside the air duct and located directly above the ash discharge port. The iron removal unit includes multiple magnetic rods. The dust removal unit is located inside the air duct and directly above the dust discharge port. The dust removal unit includes multiple vertically arranged folding plates that divide the air duct into multiple curved flow channels. When the airflow passes through the flow channels, it will hit the folding plates, causing some dust to fall into the dust collection box.

2. The primary filtration device for a fresh air system according to claim 1, characterized in that, Along the direction of airflow, the iron removal unit, the ash removal unit, and the fan unit are arranged in sequence.

3. The primary filtration device for a fresh air system according to claim 1, characterized in that, The outer shell of the air duct has multiple insertion holes, and the magnetic rod is movably inserted into the insertion holes.

4. The primary filtration device for a fresh air system according to claim 1, characterized in that, Along the direction of airflow, the iron removal unit forms multiple rows of magnetic rods, with adjacent rows of magnetic rods arranged in different directions.

5. The primary filtration device for a fresh air system according to claim 3, characterized in that, The iron removal unit also includes multiple scraping mechanisms arranged one-to-one with the insertion holes. Each scraping mechanism includes a mounting plate, a spring, and scraping claws. The mounting plate is fixedly connected to the inner wall of the air duct housing. The spring connects the mounting plate and the scraping claws. At least two of the scraping claws cooperate to clamp the magnetic rod.

6. The primary filtration device for a fresh air system according to claim 1, characterized in that, The dust removal unit also includes multiple connecting rods, and the folding plate is fixedly connected to the inner wall of the air duct housing via the connecting rods.

7. The primary filtration device for a fresh air system according to claim 1, characterized in that, The main unit also includes connecting bodies, which are disposed on two outer surfaces of the air duct housing. A sliding groove is formed on one side of the two connecting bodies facing each other, and the dust collection box is slidably connected to the sliding groove.

8. The primary filtration device for a fresh air system according to claim 7, characterized in that, A mounting groove is formed at the opening of the ash collection box, and a sealing ring is provided in the mounting groove. When the ash collection box is located in the sliding groove, the sealing ring abuts against the edge of the ash discharge port.

9. The primary filtration device for a fresh air system according to claim 7, characterized in that, The main unit also includes an outer box, the dust collection box is nested inside the outer box, the outer box is slidably connected to the slide groove, and the outer box is magnetic.

10. The primary filtration device for a fresh air system according to claim 1, characterized in that, It also includes a barrier unit, which is detachably installed at the air inlet and has a barrier mesh.

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