CN220648854U

CN220648854U - HEPA improved system for drying section of dehumidifying dryer

Info

Publication number: CN220648854U
Application number: CN202322276523.6U
Authority: CN
Inventors: 祝国旗; 魏富康
Original assignee: Zibo Core Material Integrated Circuit Co ltd
Current assignee: Zibo Core Material Integrated Circuit Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-03-22
Anticipated expiration: 2033-08-23

Abstract

The utility model discloses a HEPA (high efficiency particulate air) improvement system for a drying section of a dehumidifying dryer, and belongs to the technical field of packaging loading plates. It has solved the hose ageing that traditional dry section HEPA exists among the prior art and has produced the defect that the piece adsorbs on the base plate influences the yields. The main structure of the drying box comprises a drying box and a blower, wherein the blower is communicated with the inside of an upper cover above the drying box through a heating device and a hose, a HEPA filtering device and a blower are arranged in the upper cover, a drying cavity in the drying box is communicated with the blower through a second air inlet pipe, a first air inlet pipe is further communicated with the second air inlet pipe, and an air valve for adjusting the air inlet quantity is arranged on the first air inlet pipe. The utility model is mainly used for the dehumidifying dryer.

Description

HEPA improved system for drying section of dehumidifying dryer

Technical Field

The utility model belongs to the technical field of packaging loading plates, and particularly relates to a HEPA (high efficiency particulate air) improvement system of a drying section of a dehumidifying dryer.

Background

As shown in fig. 3, the conventional drying section is supplied with air by an air blower, and passes through the HEPA filter device 1, the heating device 2, the hose 3 and the air knife edge, and is provided with a temperature air knife 4, and the substrate is dried rapidly by the air knife with temperature, so that the hose faces an aging problem due to high temperature, and chips are adsorbed on the substrate to affect the yield.

In addition, the air inflow of the blower is equal to the air outflow of the blower, but because the air outlet is arranged above the air inlet of the blower, negative pressure is caused in the cavity of the blower, and because of the negative pressure in the cavity, air which is not filtered enters the drying cavity from the two ends of the roller track of the substrate conveyed by the gear transmission, and impurities can be adsorbed on the substrate which is not completely dried by the air which is not filtered, so that the yield is also affected.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art, and provides a HEPA (high efficiency particulate air) improvement system for a drying section of a dehumidifying dryer, which is characterized in that a HEPA filtering device is arranged above an air knife, positive pressure is added in a drying cavity, hot air with foreign matters and air without filtering can not contact a substrate, so that the entry of the foreign matters is effectively avoided, and the yield is improved.

In order to achieve the above purpose, the present utility model is realized by adopting the following technical scheme:

the utility model provides a desiccator dry section HEPA improves system, includes drying cabinet and air-blower, the air-blower passes through the inside intercommunication of upper cover of heating device and hose and drying cabinet top, is provided with HEPA filter equipment and air knife in the upper cover, and the dry chamber in the drying cabinet communicates with the air-blower through air-supply line two, still communicates on the air-supply line two has air-supply line one, is provided with the blast gate that is used for adjusting the air-supply quantity size on the air-supply line one.

Preferably, the two sides of the drying cavity in the drying box are provided with a baffle plate, and the baffle plate is provided with a filter screen.

Preferably, a rotating shaft arranged on the partition plate and a conveying roller arranged on the rotating shaft are arranged in the drying box, and a magnetic wheel is arranged at one end of the rotating shaft extending out of the drying cavity.

Preferably, a filter screen is arranged at the air inlet of the first air inlet pipe.

Preferably, an exhaust pipe for exhausting is further arranged on the outer wall of the drying box.

Preferably, an exhaust filter screen is arranged in the exhaust pipe. Foreign matters in the exhaust pipe can be prevented from falling into the drying box through the exhaust filter screen.

Compared with the prior art, the utility model has the beneficial effects that:

1. the HEPA filter device is arranged above the air knife, and foreign matters generated by aging of the hose are filtered by the HEPA filter device after the hose is arranged, so that the substrate cannot be polluted;

2. an air inlet pipe I with a filter screen and an air valve is additionally arranged between the drying box and the air blower, the air inflow is adjusted through the air valve, and the positive pressure in the drying cavity is ensured (the air inflow of the air blower plus the air inflow of the additionally arranged air inlet is larger than the air inflow in the drying cavity plus the air outflow of the air outlet on the air outlet pipe);

3. by arranging the filter screen, air which is not filtered cannot enter the drying cavity through the two ends of the rotating shaft, so that impurities are effectively prevented from entering;

4. because the gear transmission device is canceled, a magnetic wheel driving device outside the drying cavity is adopted, friction dust production is avoided, and the yield is influenced;

in summary, the HEPA filter device is arranged above the air knife, positive pressure is added in the drying cavity, and the hot air with foreign matters and the air without filtering can not contact the substrate, so that the entry of the foreign matters is effectively avoided, and the yield is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the stroke valve according to the present utility model;

fig. 3 is a schematic diagram of a prior art structure.

In the figure: 1. HEPA filter equipment; 2. a heating device; 3. a hose; 4. an air knife; 5. a drying box; 6. a blower; 7. a conveying roller; 8. an air valve; 9. an air inlet pipe I; 10. an air inlet pipe II; 11. an exhaust pipe; 12. a filter screen; 13. a partition plate; 14. a filter screen; 15. a magnetic wheel; 16. an exhaust filter screen; 17. an upper cover; 18. a drying chamber; 19. a rotating shaft.

Detailed Description

The utility model will now be further illustrated by means of specific examples in connection with the accompanying drawings.

Example 1:

as shown in fig. 1-2, a drying section HEPA improvement system of a dehumidification dryer comprises a drying box 5 and a blower 6, wherein the blower 6 is communicated with the inside of an upper cover 17 above the drying box 5 through a heating device 2 and a hose 3, a HEPA filtering device 1 and an air knife 4 are arranged in the upper cover 17, a drying cavity 18 in the drying box 5 is communicated with the blower 6 through an air inlet pipe two 10, an air inlet pipe one 9 is further communicated on the air inlet pipe two 10, and an air valve 8 for adjusting the air inlet amount is arranged on the air inlet pipe one 9.

In this embodiment, the HEPA filter device 1 is mounted above the air knife 4, and after the hose 3, the foreign matter generated by the aging of the hose 3 is filtered out by the HEPA filter device 1, and the substrate is not contaminated.

Further, an air inlet pipe I9 with a filter screen 12 and an air valve 8 is additionally arranged between the drying box 5 and the blower 6, and the air inflow is adjusted through the air valve 8, so that positive pressure in the drying cavity 18 is ensured (the air inflow of the blower plus the air inflow of the additionally arranged air inlet is larger than the air inflow of the drying cavity 18 plus the air outflow of the air outlet on the air outlet pipe 11).

Example 2:

the utility model provides a dehumidification desiccator drying section HEPA improves system, the inside both sides of dry cavity 18 in the drying cabinet 5 are provided with baffle 13, are provided with filter screen 14 on the baffle 13, through setting up filter screen 14, the both ends that do not have filterable air just can not get into dry cavity 18 through pivot 19, effectively avoid impurity entering.

The drying box 5 is internally provided with a rotating shaft 19 arranged on the partition plate 13 and a conveying roller 7 arranged on the rotating shaft 19, and one end of the rotating shaft 19 extending out of the drying cavity 18 is provided with a magnetic wheel 15. Because the gear transmission device is canceled, the magnetic wheel 15 driving device outside the drying cavity 18 is adopted, so that friction dust production is avoided, and the yield is influenced.

A filter screen 12 is arranged at the air inlet of the first air inlet pipe 9.

An exhaust pipe 11 for exhausting is also arranged on the outer wall of the drying box 5.

An exhaust filter screen 16 is arranged in the exhaust pipe 11. Foreign matters in the exhaust pipe 11 can be prevented from falling into the drying box 5 by the exhaust filter screen 16. The other parts are the same as in example 1.

The working principle of the utility model is as follows:

after preliminary filtration, the blower 6 heats through the heating device 2, enters the upper cover 17 through the hose 3, is efficiently filtered through the HEPA filtering device 1, hot air enters the drying cavity 18 after passing through the air knife edge and drying the substrate, and then circulates through the blower 6, when negative pressure occurs in the drying cavity 18, the air inlet amount can be adjusted through the air valve 8 by adjusting the air valve 8, and positive pressure in the drying cavity 18 is ensured.

Claims

1. The utility model provides a dehumidification desiccator drying section HEPA improves system, includes drying cabinet (5) and air-blower (6), its characterized in that: the novel air dryer is characterized in that the air blower (6) is communicated with the inside of an upper cover (17) above the drying box (5) through a heating device (2) and a hose (3), a HEPA filtering device (1) and an air knife (4) are arranged in the upper cover (17), a drying cavity (18) in the drying box (5) is communicated with the air blower (6) through an air inlet pipe II (10), an air inlet pipe I (9) is further communicated on the air inlet pipe II (10), and an air valve (8) for adjusting the air inlet amount is arranged on the air inlet pipe I (9).

2. The desiccant dryer drying section HEPA retrofit system of claim 1, wherein: the drying chamber (18) inside both sides in drying cabinet (5) are provided with baffle (13), are provided with filter screen (14) on baffle (13).

3. The desiccant dryer drying section HEPA retrofit system of claim 2, wherein: the drying box (5) is internally provided with a rotating shaft (19) arranged on the partition plate (13) and a conveying roller (7) arranged on the rotating shaft (19), and one end of the rotating shaft (19) extending out of the drying cavity (18) is provided with a magnetic wheel (15).

4. A dehumidifier dryer section HEPA retrofit system according to any of claims 1-3, wherein: a filter screen (12) is arranged at the air inlet of the first air inlet pipe (9).

5. The desiccant dryer drying section HEPA retrofit system of claim 4 wherein: an exhaust pipe (11) for exhausting is further arranged on the outer wall of the drying box (5).

6. The desiccant dryer drying section HEPA retrofit system of claim 5 wherein: an exhaust filter screen (16) is arranged in the exhaust pipe (11).