Papermaking drying equipment

Abstract

The utility model provides papermaking drying equipment, belongs to the technical field of papermaking, and solves the problem that water can drop on a heating module when the papermaking drying equipment is too much in water on paper. A sliding groove is formed in the drying box, a drying frame is installed in the sliding groove, a ventilation channel and an exhaust fan are arranged on the drying box, a heating module and an axial flow fan are installed on the two sides of the drying box, a ventilation channel and a drainage channel are formed in the sliding groove, a water outlet groove is formed below the drainage channel, and a water outlet pipe is arranged in the water outlet groove. Ventilation openings, ventilation holes and through grooves are formed in the drying frame. The obliquely-arranged sliding grooves are matched with the obliquely-arranged drying frame, so that water on paper flows into the drainage channels through the through grooves and is discharged, the heating module and the axial flow fan are matched to blow out hot air to dry the paper, and the situation that water drops make contact with the heating module, and consequently the heating module is damaged is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking, and relates to a papermaking drying device, in particular to a papermaking drying device. Background Art

[0002] Paper is produced by coagulating pulp. There is a large amount of moisture in the newly produced paper. In order to make the paper flat and quickly formed, a papermaking drying device is usually used to remove the moisture from the paper.

[0003] The existing papermaking drying devices are usually placed flat, and the paper to be dried is usually laid flat above the drying device. However, since there is still a large amount of moisture in the paper, the excess moisture on the paper will gradually gather and drip into the drying device under the influence of gravity, causing damage to the heating module of the drying device.

[0004] For example, a drying device for papermaking with the application number 201922259543.6 includes a main body, a conveying plate and paper. A heating roller is connected inside the main body, a connecting pipe is installed on the main body, the main body conveys hot steam through the connecting pipe, and a heating wire for heating is also installed inside the main body.

[0005] In the above patent, there is no barrier between the heating wire and the paper. At the same time, the paper is located above the heating wire. If the paper has too much moisture, it will cause the moisture to gather and form water droplets, resulting in the water droplets dripping onto the heating wire, causing damage to the heating wire and making it difficult to heat normally. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a papermaking drying device which is convenient for drying paper and prevents moisture from entering the drying device in view of the above problems existing in the prior art.

[0007] The utility model can be realized by the following technical solutions: A papermaking drying device includes a drying box, a box door is hinged on the drying box, a drying chamber is opened inside the drying box, a sliding groove is arranged inside the drying chamber, a drying rack is installed in the sliding groove, ventilation openings are opened on the drying rack, heating modules are installed on both sides of the drying chamber, axial flow fans are installed behind the heating modules, a ventilation duct is opened on the upper end surface of the drying chamber, an exhaust fan is installed on the ventilation duct, a hydrophobic channel is opened on the sliding groove, and a water outlet tank is installed under the hydrophobic channel.

[0008] In the above papermaking drying device, the sliding groove is inclined, the inclination angle is 10 degrees, and the bottom of the water outlet tank is an inclined surface.

[0009] In the above papermaking drying device, a water outlet pipe is arranged at the bottom of the water outlet tank.

[0010] In the above-mentioned papermaking drying equipment, a first positioning block and a second positioning block are arranged on the drying rack, and a corresponding first positioning groove and a second positioning groove are arranged in the sliding groove.

[0011] In the above-mentioned papermaking drying equipment, a boss is arranged inside the drying rack, a groove is arranged on the boss, and a limiting block is installed on the boss.

[0012] In the above-mentioned papermaking drying equipment, the first positioning block is in the shape of "one", and the second positioning block is in the shape of "T".

[0013] In the above-mentioned papermaking drying equipment, a through groove is opened on the lower end face of the drying rack, and a plurality of ventilation holes are opened on the upper end face of the drying rack.

[0014] In the above-mentioned papermaking drying equipment, a support frame is arranged on the lower end face of the drying box.

[0015] In the above-mentioned papermaking drying equipment, a filter layer is arranged in front of the exhaust fan, activated carbon is filled in the filter layer, and a filter screen is arranged in front of the filter layer.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: the heating element is placed parallel and vertically to the paper, preventing water droplets from condensing and dripping onto the heating element, and at the same time preventing water from remaining in the equipment, which may cause difficulty in drying the paper or result in wrinkles; through the setting of the drying rack, multiple batches of paper can be dried, and the setting of the suspension rack facilitates double-sided drying of the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the papermaking drying equipment;

[0018] Figure 2 is the cross-sectional view of the papermaking drying equipment;

[0019] Figure 3 is the cross-sectional view of the exhaust fan of the papermaking drying equipment;

[0020] Figure 4 is the perspective view of the drying rack of the papermaking drying equipment;

[0021] Figure 5 is Figure 2 the enlarged view within circle A in

[0022] Figure 6 is Figure 2 the enlarged view of circle B in

[0023] Among them, 1. drying oven; 11. drying chamber; 12. sliding groove; 121. hydrophobic channel; 122. first positioning groove; 123. second positioning groove; 13. ventilation duct; 14. support frame; 2. box door; 3. drying rack; 31. ventilation opening; 32. first positioning block; 33. second positioning block; 34. convex platform; 341. groove; 35. through groove; 36. ventilation hole; 4. heating module; 5. axial flow fan; 6. exhaust fan; 61. filter layer; 611. activated carbon; 62. filter screen; 7. water outlet tank; 71. water outlet pipe; 8. limit block. Detailed implementation manners

[0024] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] As Figures 1 to 6 shown, the present invention can be realized through the following embodiments: A papermaking drying device includes a drying oven 1, a box door 2 is hinged on the drying oven 1, a drying chamber 11 is opened in the drying oven 1, a sliding groove 12 is arranged in the drying chamber 11, a drying rack 3 is installed in the sliding groove 12, a ventilation opening 31 is opened on the drying rack 3, heating modules 4 are installed on both sides of the drying chamber 11, an axial flow fan 5 is installed behind the heating modules 4, a ventilation duct 13 is opened on the upper end surface of the drying chamber 11, an exhaust fan 6 is installed on the ventilation duct 13, a hydrophobic channel 121 is opened on the sliding groove 12, and a water outlet tank 7 is installed below the hydrophobic channel 121.

[0026] The sliding groove 12 is provided to enable the sliding connection between the drying rack 3 and the drying oven 1, facilitating the taking out of the drying rack 3 and the paper; the design of the ventilation opening 31 on the drying rack 3 facilitates the hot air blown by the axial flow fan 5 to pass through, enabling the drying oven 1 to dry multiple sheets of paper at one time. The ventilation duct 13 and the exhaust fan 6 are used to extract the air in the drying oven 1 and remove the water vapor in the drying oven 1 from the drying chamber 11 to ensure a low humidity environment in the drying oven 1. The hydrophobic channel 121 is used to drain the water droplets dripping from the paper to prevent the increase in humidity after the water droplets evaporate.

[0027] As Figure 2 、 Figure 5 and Figure 6 shown, the sliding groove 12 is inclined, with an inclination angle of 10 degrees, and the bottom of the water outlet tank 7 is a slope. The inclined setting of the sliding groove 12 makes the drying rack 3 inclined, so that the water droplets flow down under the influence of gravity after dripping, preventing the water droplets from being scattered when dripping. A smaller inclination angle can prevent the water droplets from falling off during dripping, resulting in the inability to collect and drain the water droplets. The sloping bottom of the water outlet tank 7 facilitates the collection and drainage of water in the water outlet tank 7.

[0028] As Figure 1 and Figure 2As shown, a water outlet pipe 71 is provided at the bottom of the water outlet tank 7. The water outlet pipe 71 provides a drainage channel for the water outlet tank 7 to facilitate the discharge of water. A container can be placed under the water outlet pipe 71 to collect the discharged water.

[0029] As Figure 2 , Figure 5 and Figure 6 As shown, a first positioning block 32 and a second positioning block 33 are provided on the drying rack 3, and a corresponding first positioning groove 122 and a second positioning groove 123 are provided in the sliding groove 12. The cooperation between the first positioning block 32 and the first positioning groove 122, and between the second positioning block 33 and the second positioning groove 123 enables the drying rack 3 to be installed in the drying box 1 in a specified manner, so that the drying rack 3 is facing the heating module 4 and the axial flow fan 5.

[0030] As Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a boss 34 is provided in the drying rack 3, a groove 341 is provided on the boss 34, and a limiting block is installed on the boss 34. The boss 34 is used to position the paper, and the limiting block clamps the edge of the paper to prevent the paper from shaking under the influence of the axial flow fan 5. The opening of the groove 341 facilitates the hot air to blow in and dry the paper. The lifted paper will not block the ventilation opening 31, facilitating the hot air to pass through the drying rack 3, and the hot air forms a vortex at the ventilation opening 31, facilitating the drying of both sides of the paper.

[0031] As Figure 2 , Figure 5 and Figure 6 As shown, the first positioning block 32 is in the shape of a "one", and the second positioning block 33 is in the shape of a "T". The one-shaped first positioning block 32 is used to guide the drying rack 3 to slide into the drying box 1, and the T-shaped second positioning block 33 is used to fit with the second positioning groove 123, so that the drying rack 3 can face the heating module 4 and the axial flow fan 5, improving the drying efficiency.

[0032] As Figure 4 As shown, a through groove 35 is provided on the lower end surface of the drying rack 3, and a plurality of ventilation holes 36 are provided on the upper end surface of the drying rack 3. The through groove is provided to drain the water droplets dripping from the paper, so that the water droplets drip into the hydrophobic channel 121; the ventilation holes 36 are used to cooperate with the exhaust fan 6 to extract and discharge the water vapor blown out from the paper by the axial flow fan 5.

[0033] As Figure 1 and Figure 2 As shown, a support frame 14 is provided on the lower end surface of the drying box 1. The provision of the support frame 14 facilitates the placement of a container under the water outlet pipe 71 to collect the discharged water, preventing the discharged water from flowing and accumulating randomly and damaging the working environment.

[0034] As Figure 3As shown in the figure, a filter layer 61 is provided in front of the exhaust fan 6. Activated carbon 611 is installed in the filter layer 61, and a filter screen 62 is provided in front of the filter layer 61. The filter layer 61 is used to block the water vapor rushing out of the drying box 1, prevent the water vapor from invading the exhaust fan 6 and causing the exhaust fan 6 to malfunction, and improve the service life of the exhaust fan 6. The filter screen 62 is used to block the impurities blown out from the paper.

[0035] The working principle of the present utility model: Place the paper on the drying rack 3. After unfolding and flattening it, press and limit it with the limit block, and then put the drying rack 3 into the drying box 1. Slide the drying rack 3 into the drying box 1 through the sliding groove 12. Then close the box door 2, start the axial flow fan 5, the heating module 4 and the exhaust fan 6, and start the drying program. During this period, a large amount of water remaining on the paper condenses and drips, flows into the hydrophobic channel 121 through the through groove 35, and flows into the water outlet tank 7 from the hydrophobic channel 121. Finally, it flows out from the sub-water pipe 71 and into the collecting container.

[0036] The specific embodiments described in this text and the figures are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0037] Although various terms are used more in this text, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A papermaking drying device, comprising a drying box (1), wherein a door (2) is hingedly connected to the drying box (1), and a drying chamber (11) is provided in the drying box (1), characterized in that: The drying chamber (11) is provided with a sliding groove (12), a drying rack (3) is installed in the sliding groove (12), a vent (31) is provided on the drying rack (3), heating modules (4) are installed on both sides of the drying chamber (11), an axial flow fan (5) is installed behind the heating module (4), a ventilation duct (13) is provided on the upper end surface of the drying chamber (11), an exhaust fan (6) is installed on the ventilation duct (13), a drainage channel (121) is provided on the sliding groove (12), and a water outlet trough (7) is installed below the drainage channel (121).

2. A papermaking drying equipment according to claim 1, characterized in that: The sliding groove (12) is arranged obliquely, and the bottom of the water outlet groove (7) is an inclined surface.

3. A papermaking drying equipment according to claim 1, characterized in that: A water outlet pipe (71) is arranged at the bottom of the water outlet trough (7).

4. A papermaking drying equipment according to claim 1, characterized in that: The drying rack (3) is provided with a first positioning block (32) and a second positioning block (33), and the sliding groove (12) is provided with a corresponding first positioning groove (122) and a second positioning groove (123).

5. The papermaking drying equipment according to claim 1, characterized in that: A boss (34) is provided in the drying rack (3), a groove (341) is provided on the boss (34), and a limit block (8) is installed on the boss (34).

6. A papermaking drying equipment according to claim 4, characterized in that: The first positioning block (32) is in the shape of a letter "I", and the second positioning block (33) is in the shape of a letter "T".

7. The papermaking drying equipment according to claim 1, characterized in that: The lower end surface of the drying rack (3) is provided with a through slot (35), and the upper end surface of the drying rack (3) is provided with a plurality of ventilation holes (36).

8. The papermaking drying equipment according to claim 1, characterized in that: The lower end surface of the drying box (1) is provided with a support frame (14).

9. The papermaking drying equipment according to claim 1, characterized in that: A filter layer (61) is arranged in front of the exhaust fan (6), activated carbon (611) is contained in the filter layer (61), and a filter net (62) is arranged in front of the filter layer (61).

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