CN217678330U

CN217678330U - Dry heated air circulation device of impregnated paper

Info

Publication number: CN217678330U
Application number: CN202221411308.1U
Authority: CN
Inventors: 彭峻; 陈文泉; 张伟
Original assignee: Shanghai Puibright Timber Industry Co ltd
Current assignee: Shanghai Puibright Timber Industry Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-10-28
Anticipated expiration: 2032-06-01

Abstract

The utility model relates to a dry heated air circulation device of impregnated paper, including the fan, the fan is provided with first air intake, second air intake and air outlet, and the fan is located first air intake department and is connected with the backwind pipe that is used for communicateing outside drying container exhaust pipe, and the fan is located air outlet department and is provided with the dehumidification room, is provided with dehumidification mechanism in the dehumidification room, and the dehumidification room is kept away from fan one side and is connected with the heating chamber, and the heating chamber is kept away from dehumidification room one side and is provided with the dry tuber pipe that is used for communicateing outside drying container air-supply line. Under the drive of the fan, the damp-heat gas in the drying container enters the fan through the return air pipe and the first air inlet, and in addition, the external air enters the fan through the second air inlet to form mixed gas. The mixed gas enters the dehumidifying chamber through the air outlet, fully contacts with the dehumidifying mechanism, dehumidifies, then enters the heating chamber for heating, and enters the drying container through the drying air pipe to dry the impregnated paper, so that the waste heat is recycled, and the energy consumption is reduced.

Description

Dry heated air circulation device of impregnated paper

Technical Field

The application relates to the field of impregnated paper drying equipment, in particular to a hot air circulating device for drying impregnated paper.

Background

The impregnated paper is prepared by mixing non-woven wood pulp, polyethylene and plant fiber, has super-strong absorption capacity and dissolution resistance, and is widely applied to the veneering of cabinets, wardrobes and reinforced composite floors.

In the production process of impregnated paper, the impregnated paper needs to be dried after being coated, the drying process is generally carried out in a drying container, air is converted into high-temperature gas by utilizing a heating device, and the high-temperature gas enters the drying container to be fully contacted with the impregnated paper to take away moisture. The exhaust gas of the drying container carries the waste heat, the hot air circulating device can recycle the exhaust gas in the drying container, the gas with the waste heat is introduced into the heating device through the air return pipeline, mixed with the sucked air for heating, and then introduced into the drying container for secondary utilization, so that the energy consumption is reduced, and the cost is saved.

In view of the above-mentioned related art, the inventor believes that the moisture content of the gas discharged from the drying container is high, and during the heating process, the gas with high moisture content absorbs more heat, which affects the heating speed, and when the recycled gas enters the drying container, the moisture content is high, which affects the drying effect.

SUMMERY OF THE UTILITY MODEL

In order to reduce the water content in the recovered gas, the application provides a hot air circulation device for drying impregnated paper.

The application provides a dry heated air circulation device of impregnated paper adopts following technical scheme:

the utility model provides a dry heated air circulation device of impregnated paper, includes the fan, the fan is provided with first air intake, second air intake and air outlet, and the fan is located first air intake department and is connected with the backwind pipe that is used for communicateing outside drying container exhaust pipe, the fan is located air outlet department and is provided with the dehumidification room, be provided with dehumidification mechanism in the dehumidification room, the dehumidification room is kept away from fan one side and is connected with the heating chamber, the heating chamber is kept away from dehumidification room one side and is provided with the dry tuber pipe that is used for communicateing outside drying container air-supply line.

By adopting the technical scheme, under the driving of the fan, the damp-heat gas in the drying container enters the fan through the return air pipe and the first air inlet, and the other part of the outside air enters the fan through the second air inlet to form mixed gas with the gas from the drying container. The mixed gas enters the dehumidifying chamber through the air outlet and fully contacts with the dehumidifying mechanism, and moisture in the mixed gas is absorbed to form dry gas. The drying gas enters the heating chamber for heating, and after reaching the preset temperature, the drying gas enters the drying container through the drying air pipe to realize drying the impregnated paper, thereby realizing recycling of waste heat, reducing energy consumption, simultaneously ensuring the drying degree of the gas and ensuring the drying effect of the impregnated paper.

Preferably, a plurality of air guide channels are arranged in the dehumidifying mechanism.

Through adopting above-mentioned technical scheme, the mist gets into the dehumidification room after, through the wind-guiding passageway, fully contacts with dehumidification mechanism, and moisture in the mist is fully absorbed by dehumidification mechanism.

Preferably, the dehumidification mechanism includes the dehumidification board, and the dehumidification board intussuseption is filled with the dehumidification material layer, and the wind-guiding passageway sets up in the dehumidification material layer, just be provided with a plurality of air vents that communicate with the wind-guiding passageway on the dehumidification board.

Through adopting above-mentioned technical scheme, gas mixture gets into the dehumidification room after, can not direct impact dehumidification material layer, but gets into wind-guiding passageway through the air vent, fully contacts with dehumidification material layer, and the dehumidification board plays certain protection fastening effect to dehumidification material layer.

Preferably, the dehumidification plate is provided in a plurality of pieces along the wind circulation direction.

Through adopting above-mentioned technical scheme, the drying effect is better through the effect of absorbing water of a plurality of dehumidification boards to mist.

Preferably, the air guide channels on adjacent dehumidifying plates are staggered.

Through adopting above-mentioned technical scheme, mist reaches the hybrid chamber between the adjacent dehumidification board through different wind-guiding passageways, and the dry degree of the mist that comes from different wind-guiding passageways differs, and gaseous remixing gets into next dehumidification board in the hybrid chamber. After multiple drying, mixing and drying, the drying degree of the mixed gas is more uniform, and the drying effect is better.

Preferably, the dehumidifying plate is detachably disposed.

Through adopting above-mentioned technical scheme, after the dehumidification board used a period, the dehumidification ability on dehumidification material layer can descend to some extent, needs regularly change the dehumidification board to guarantee good dehumidification effect.

Preferably, the wind guide channel is arranged in a wave shape.

Through adopting above-mentioned technical scheme, mist is through dehumidification mechanism's route extension, and is more abundant with the contact of dehumidification material layer, and the dehumidification effect is better.

Preferably, the air return pipe is provided with an air volume regulating valve.

Through adopting above-mentioned technical scheme, under the condition that the dehumidification board is not changed, the dehumidification ability of dehumidification board reduces gradually. In the dehumidification process, the air quantity entering the fan from the return air pipe is adjusted through the air quantity adjusting valve, and the proportion of the recovered damp-heat gas and the external air is adjusted to ensure the dryness of the gas finally entering the drying container.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the damp-heat gas in the drying container enters the fan through the return air pipe through the first air inlet, and the other part of the outside air enters the fan through the second air inlet to form mixed gas. The mixed gas is dehumidified by the dehumidifying mechanism and heated by the heating chamber, and then enters the drying container through the drying air pipe to dry the impregnated paper, so that the waste heat is recycled, the energy consumption is reduced, the drying degree of the gas is ensured, and the drying effect of the impregnated paper is ensured;

2. dehumidification mechanism includes that the polylith is the dehumidification board that the interval set up, is provided with the dehumidification material layer in the dehumidification board, sets up the air vent on the dehumidification board, be provided with on the dehumidification material layer with the communicating wind-guiding passageway of air vent, and the crisscross setting of wind-guiding passageway in the adjacent dehumidification board, gas mixture is through many times drying, mixture, dry back, and the drying is more abundant even.

Drawings

FIG. 1 is a schematic structural diagram of a hot air circulation device for drying impregnated paper according to an embodiment of the present application.

FIG. 2 is a partial cross-sectional view of a dehumidifying structure according to an embodiment of the present application.

FIG. 3 is a partial cross-sectional view of a second embodiment of the present application, showing a dehumidification mechanism in a highlighted manner.

Description of reference numerals: 1. a fan; 2. a first air inlet; 3. a second air inlet; 4. an air outlet; 5. a return air duct; 6. a dehumidification chamber; 7. a dehumidification mechanism; 71. a dehumidification plate; 72. a layer of moisture-excluding material; 73. a vent hole; 74. a wind guide channel; 75. a mixing chamber; 8. mounting grooves; 9. an air volume adjusting valve; 10. a heating chamber; 11. and (7) drying the air pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses dry heated air circulation device of impregnated paper.

Example one

Referring to fig. 1 and 2, a heated air circulation device for drying impregnated paper comprises a fan 1, wherein the fan 1 is provided with a first air inlet 2, a second air inlet 3 and an air outlet 4, the fan 1 is positioned at the first air inlet 2 and is connected with an air return pipe 5, the air return pipe 5 is connected with an exhaust pipe of an external drying container, and wet and hot air passing through the impregnated paper in the drying container enters the fan 1 through the exhaust pipe and the air return pipe 5. Meanwhile, under the driving of the fan 1, part of the outside air enters the fan 1 through the second air inlet 3 and is mixed with the recycled damp-heat gas to form mixed gas.

Fan 1 is located air outlet 4 department and is connected with dehumidification room 6, is provided with dehumidification mechanism 7 in the dehumidification room 6, and dehumidification mechanism 7 includes that the polylith is the dehumidification board 71 that the interval set up along the wind direction, and dehumidification room 6 is provided with many mounting grooves 8 along wind direction both sides wall, but dehumidification board 71 pull joint in mounting groove 8. The embodiment of the application is provided with three dehumidifying plates 71, a dehumidifying material layer 72 is arranged in each dehumidifying plate 71, a plurality of vent holes 73 are formed in two side walls of each dehumidifying plate 71, air guide channels 74 are arranged between the corresponding vent holes 73 on two sides, the air guide channels 74 between the adjacent dehumidifying plates 71 are arranged in a staggered mode, and the dehumidifying material layer 72 can be selected as anhydrous calcium carbonate. After the mixed gas enters the dehumidifying chamber 6, the mixed gas enters the air guide channel 74 through the vent holes 73, the mixed gas is in contact with the dehumidifying material layer 72 in the air guide channel 74, moisture in the mixed gas is absorbed by the dehumidifying material layer 72, and when the gas passing through different air guide channels 74 of one dehumidifying plate 71 reaches the mixing cavity 75 between adjacent dehumidifying plates 71, the gas is uniformly mixed and then enters the lower dehumidifying plate 71. The gas is dried for three times and mixed for two times in the dehumidification chamber 6, so that a better drying effect can be achieved, and the drying degree is uniform. After dehumidification room 6 worked for a long time, the dehumidification ability of dehumidification material layer 72 can reduce gradually, needs regularly to change dehumidification board 71, but the mounting means of dehumidification board 71 pull joint in mounting groove 8 has fine convenience.

The return air pipe 5 is provided with an air volume adjusting valve 9. Without replacing the dehumidifying plate 71, the dehumidifying performance of the dehumidifying plate 71 is gradually lowered. The air quantity of the return air pipe 5 is adjusted through the air quantity adjusting valve 9, the proportion of the humid hot gas and the external air in the mixed gas is changed, the water content in the mixed gas is reduced, and the dehumidification effect of the dehumidification plate 71 on the mixed gas is ensured.

The dehumidification chamber 6 is provided with a heating chamber 10 at an end away from the fan 1, the heating chamber 10 can heat the air, and an electric heating wire can be arranged in the heating chamber 10 for heating. And a drying air pipe 11 is arranged on one side of the heating chamber 10 far away from the dehumidifying chamber 6, and the drying air pipe 11 is communicated with an air inlet pipe of an external drying container. The drying gas discharged from the dehumidifying chamber 6 passes through the heating chamber 10 to reach a predetermined temperature, and then enters an external drying container through a drying air duct 11 and an air inlet duct to dry the coated impregnated paper.

The implementation principle of the hot air circulation device for drying the impregnated paper in the embodiment of the application is as follows: the damp and hot gas exhausted from the drying container and part of the outside air enter the fan 1 to form mixed gas, the mixed gas is dehumidified after passing through the dehumidifying chamber 6, then is heated through the heating chamber 10 to be converted into dry gas with specific temperature, and the dry gas returns to the drying container to dry the impregnated paper. The device realizes the recycling of the wet hot gas in the drying container, reduces the energy consumption, ensures that the recycled gas entering the drying container has preset temperature and drying degree, and further ensures the drying effect on the impregnated paper.

Example two

Referring to fig. 3, the embodiment of the present application differs from the second embodiment in that: the dehumidifying mechanism 7 does not comprise a dehumidifying plate 71, the dehumidifying mechanism 7 comprises a dehumidifying material layer 72, the dehumidifying material layer 72 is formed by pressing anhydrous calcium carbonate particles, and a wave-shaped air guide channel 74 is arranged in the dehumidifying material layer 72.

The implementation principle of the embodiment 2 is as follows: the mixed gas enters the dehumidifying chamber 6, is in direct contact with the dehumidifying material layer 72, passes through the dehumidifying mechanism 7 through the wave-shaped air guide channel 74, has a longer dehumidifying path, and makes the mixed gas fully contact with the dehumidifying mechanism 7 to complete dehumidification.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A hot air circulation device for drying impregnated paper is characterized in that: including fan (1), fan (1) is provided with first air intake (2), second air intake (3) and air outlet (4), and fan (1) is located first air intake (2) and locates to be connected with return air pipe (5) that are used for communicateing outside dry container exhaust pipe, fan (1) is located air outlet (4) and locates to be provided with dehumidification room (6), be provided with dehumidification mechanism (7) in dehumidification room (6), dehumidification room (6) are kept away from fan (1) one side and are connected with heating chamber (10), dehumidification room (6) are kept away from in heating chamber (10) one side and are provided with dry tuber pipe (11) that are used for communicateing outside dry container air-supply line.

2. The hot air circulation device for drying impregnated paper according to claim 1, wherein: and a plurality of air guide channels (74) are arranged in the dehumidifying mechanism (7).

3. The hot air circulation device for drying impregnated paper according to claim 2, wherein: the dehumidifying mechanism (7) comprises a dehumidifying plate (71), a dehumidifying material layer (72) is filled in the dehumidifying plate (71), an air guide channel (74) is arranged in the dehumidifying material layer (72), and a plurality of vent holes (73) communicated with the air guide channel (74) are arranged on the dehumidifying plate (71).

4. A hot air circulation device for drying impregnated paper according to claim 3, wherein: the dehumidification plates (71) are provided in plurality along the wind circulation direction.

5. The heated air circulation device for drying impregnated paper according to claim 4, wherein: the air guide channels (74) on the adjacent dehumidifying plates (71) are arranged in a staggered mode.

6. A hot air circulation device for drying impregnated paper according to claim 3, wherein: the dehumidifying plate (71) is detachably arranged.

7. The hot air circulation device for drying impregnated paper according to claim 2, wherein: the air guide channel (74) is arranged in a wave shape.

8. The hot air circulation device for drying impregnated paper according to claim 1, wherein: and an air volume adjusting valve (9) is arranged on the air return pipe (5).