CN115355184A - A wind speed balanced corrugated cardboard dehumidifier - Google Patents

Abstract

The invention provides a wind speed balanced corrugated board dehumidifying fan, which adopts a high-speed negative pressure fan as the motive power for air draft, and uniformly balances the air flow rate of each area in a manner of an air suction opening of a squared figure; the air speed of the air vortex at the air inlet of the working surface is adjusted through the variable-speed air scoop; and discharges the extracted high-humidity air to the outside of the working area. Therefore, under the condition that the ventilation quantity of the operation covering surface of the whole corrugated board stacking is equal, the humidity change of all the corrugated boards can be reduced in a balanced manner. Therefore, the corrugated board can be ensured not to be distorted.

Description

A wind speed balanced corrugated cardboard dehumidifier

technical field

The invention relates to the technical field of cardboard dehumidifying equipment, in particular to a wind speed balanced corrugated cardboard dehumidifying fan.

Background technique

During the production process of corrugated cardboard, the humidity of the cardboard will be relatively high, especially the humidity of the cardboard caused by the offset printing corrugated veneer operation will almost always be as high as 20%, so the dehumidification operation is inevitable. The online dehumidification of corrugated cardboard is done by using a fan to stack a cardboard. The fan draws air from one side of the cardboard stack, and the air flows in from the other side of the cardboard stack along the corrugated gap to take away the humidity. . The process principle of this dehumidification operation seems to be very simple, but the dehumidifier fan method currently used in the entire industry has caused serious problems in the quality of corrugated cardboard. First of all, all fans regardless of size are circular. However, the stacking of cardboard is square. Therefore, whether it is dehumidifying with a small fan matrix or a large fan, it will cause a problem of uneven humidity of the corrugated cardboard in the cardboard stacking. Once the humidity of the corrugated cardboard If there is an uneven problem, it will inevitably cause distortion of the corrugated cardboard. Once the corrugated cardboard is distorted and deformed, it is difficult to carry out normal processing in the subsequent process. Even if it is barely processed, its products must have a lot of quality problems.

At present, there are two types of on-site dehumidification fans used in the industry, one is direct ventilation with large fans, and the other is matrix ventilation with small fans. All there is the quality problem of very big operation product in these two kinds of ways. First of all, dehumidification by a large fan will cause the middle circular area of the cardboard stack to dry faster, while the four corner areas have no humidity change at all. Therefore, the problem of cardboard distortion is the most serious. Small fan matrix dehumidification, although the effect has been improved, but there is also a diamond-shaped neutral area between the circles and circles between each fan. Although the area of each area has been reduced, the number of neutral positions has become larger. The multiplier has increased. This will also cause more distortion of the cardboard.

Therefore, how to solve the problem of maintaining a complete and uniform humidity of corrugated cardboard during the dehumidification process is the most important problem in the industry.

Contents of the invention

In view of this, the present invention provides a wind speed balanced corrugated cardboard dehumidifying fan, which can evenly and comprehensively exhaust the stacked cardboard, so that the final cardboard can be dried more evenly and will not be distorted and deformed due to inconsistent humidity of the cardboard.

In order to solve the above technical problems, the present invention provides a wind speed balanced corrugated cardboard dehumidifier,

1. The wind source adopts a powerful high-speed negative pressure fan to draw air;

2. Change the round mouth of the fan into a square mouth through the variable mouth connector;

3. The air suction volume of the distribution fan is divided and distributed evenly through the Jiugong grid;

4. Adjust the air vortex of the negative pressure air inlet by changing the size of the nine-square grid of the fan suction port to correspond to the ventilation volume and air flow rate of different nine-square grid areas;

5. Adjust and control the wind speed and air volume of each unit of Jiugongge in different areas of the negative pressure air inlet through the variable speed wind bucket;

6. By controlling the air volume and flow velocity in different areas of the Jiugong grid of the negative pressure air inlet on the working surface to offset the air velocity difference in different areas of the working surface produced by the principle of air vortex, so as to ensure the balance of the wind speed on the entire working surface;

7. Realize the dehumidification effect of the entire operation corrugated cardboard stack by ensuring the air velocity balance in all areas of the entire operation surface;

The beneficial effects of above-mentioned technical scheme of the present invention are as follows:

Adopt a complete wind fluid operation; change the circular wind fluid into a square wind fluid; divide the wind fluid control surface through uniformly distributed suction windows; control and balance the wind flow velocity of the entire operation surface by changing the vortex velocity of the local wind ; Change and control the wind speed that needs to be balanced and adjusted by changing the inlet and outlet area of the suction.

In the case of equal ventilation of the operation coverage of the entire stack of corrugated paper, the humidity changes of all corrugated boards can be reduced in a balanced manner. Thus, it can be ensured that the corrugated cardboard will not be distorted and deformed.

Description of drawings

Fig. 1 is the structure schematic diagram of wind speed balance type corrugated cardboard dehumidifying fan of the present invention;

Fig. 2 is the explosion diagram of suction structure of the present invention;

Fig. 3 is the structural representation of fan suction port of the present invention;

Fig. 4 is a schematic structural view of the variable speed wind bucket of the present invention;

Fig. 5 is the structural block diagram of negative pressure air inlet of the present invention;

FIG. 6 is a schematic structural diagram of a large fan mode in the prior art (reference to the description of the prior art);

FIG. 7 is a schematic structural diagram of a matrix fan mode in the prior art (reference for description of the prior art).

01. Stack of cardboard to be dehumidified; 1. High-speed negative pressure fan; 2. Variable port connector; 3. Variable speed air bucket; 3.1. Fan suction port; 3.2. Negative pressure air inlet; 4. Negative pressure air inlet; 5 , Exhaust elbow; 6, exhaust outlet.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to Figures 1-7 of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

As shown in Figure 1-7:

This embodiment provides a wind speed balanced corrugated cardboard dehumidifying fan, which adopts a high-speed negative pressure fan 1 as the driving force for drafting, and evenly balances the air velocity and flow rate in each area through the air suction port of Jiugongge; Adjust the wind speed of the air vortex at the air inlet on the working surface; and discharge the extracted high-humidity air to the outside of the working area.

The high-speed negative-pressure fan 1 is a negative-pressure fan with a large suction volume and high-pressure exhaust function, and the model of the fan is not strictly limited.

Fan suction port 3.1 is a nine-square grid suction port with an equal area.

The fan suction port 3.1 of the variable speed wind bucket 3 is an equal nine-square grid, and the negative pressure air inlet 3.2 of the working surface is a four-sided symmetrical nine-square grid with different areas.

The fan suction port 3.1 of the variable-speed wind bucket 3 and the nine-square grid of the negative pressure air inlet 3.2 are all independent nine ventilation ducts corresponding to the ventilation style.

In the nine-square grid of the negative pressure air inlet 3.2, the area of the central grid is the largest, and the area of the middle grid on the four sides is smaller than the central grid and larger than the cells at the four corners.

The negative pressure air inlet 4 is installed correspondingly with the negative pressure air inlet 3.2, that is, the size of the nine-square opening of the negative pressure air inlet 3.2 is consistent with that of the negative pressure air inlet 4.

The entire operation process of the dehumidifier is as follows:

1. Put the cardboard pile 01 to be dehumidified in front of the dehumidifier, and connect it with the negative pressure air inlet 4;

2. Start the high-speed negative pressure fan 1;

3. The circular airflow of the high-speed negative pressure fan 1 is changed into a square airflow through the variable port connector 2;

4. The square air flow is evenly divided into nine wind fluid modules through the fan suction port 3.1 of the variable speed wind bucket 3;

5. The nine equal wind fluid modules of the fan suction port 3.1 extend forward through the variable speed wind bucket 3 and change the respective air inlet areas;

6. The fan suction port 3.1 of the variable-speed wind bucket is evenly distributed, and the suction wind speed and air volume are changed according to the different air intake areas of the negative pressure air inlet 3.2 of the Jiugongge, which is changed according to the calculation and needs;

7. Negative pressure air inlet 3.2 According to the vortex principle of air flow, the air inlet in the middle is enlarged by four times, and the middle grid on the four sides is also enlarged by two times, so as to offset the change of the flow velocity of the air vortex, and strive for nine The air intake volume and flow velocity of the air intake style are balanced;

8. Under the condition that the ventilation volume of the operation coverage area of the whole cardboard stack 01 to be dehumidified is equal, the humidity change of all the corrugated cardboards can be reduced in a balanced manner. Therefore, it can also ensure that the corrugated cardboard will not be distorted and deformed;

9. The high-speed negative pressure fan 1 draws air with a certain humidity and guides it to the exhaust outlet 6 through the exhaust elbow 5 connected to the back of the fan, and discharges the humid air to the outside through the exhaust outlet 6;

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for the technical field Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a moisture fan is taken out to wind speed balance formula corrugated container board which characterized in that: a high-speed negative pressure fan (1) is used as motive power for air draft, and air flow velocity and flow of each area are uniformly balanced in an air draft inlet mode of the squared figure; the air speed of the air vortex at the air inlet of the working surface is adjusted through the variable speed air scoop (3); and discharges the extracted high-humidity air to the outside of the work area.

2. The wind speed balanced corrugated cardboard dehumidifier of claim 1 wherein: the high-speed negative pressure fan (1) is a negative pressure fan with large air suction volume and high-pressure air suction function.

3. The wind speed balanced corrugated cardboard dehumidifier of claim 2 wherein: the air suction inlet (3.1) of the fan is a squared figure air suction inlet with equal area.

4. The wind speed balanced corrugated cardboard dehumidifier of claim 3 wherein: the air suction inlet (3.1) of the fan of the variable speed air hopper (3) is an equal squared figure, and the negative pressure air inlet (3.2) of the working surface is a squared symmetrical style squared figure with unequal area.

5. The wind speed balanced corrugated cardboard dehumidifier of claim 4 wherein: nine independent ventilating ducts are respectively arranged at the air suction opening (3.1) and the ventilating grids corresponding to the nine palace grids of the negative pressure air inlet (3.2) of the variable speed air hopper (3).

6. The wind speed balanced corrugated cardboard dehumidifier of claim 5 wherein: in the nine-square grids of the negative pressure air inlet (3.2), the area of the central grid is the largest, and the area of the middle grids on the four sides is smaller than that of the central grid and larger than that of the unit grids at the four corners.

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