CN215714270U - Heat energy utilization impregnated paper production system - Google Patents
Heat energy utilization impregnated paper production system Download PDFInfo
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- CN215714270U CN215714270U CN202121914755.4U CN202121914755U CN215714270U CN 215714270 U CN215714270 U CN 215714270U CN 202121914755 U CN202121914755 U CN 202121914755U CN 215714270 U CN215714270 U CN 215714270U
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Abstract
The utility model relates to the technical field of impregnated paper, in particular to a heat energy utilization impregnated paper production system which comprises a material discharging mechanism, an impregnating mechanism, a primary drying mechanism, a coating mechanism, a secondary drying mechanism and a material receiving mechanism which are sequentially arranged in the paper conveying direction. The exhaust gas of the second hot air box is collected and flows back to the first heating box of the first hot air drying box for reheating, so that the waste heat of the exhaust gas of the second hot air box is fully utilized, the heating energy consumption is reduced, and the heat energy utilization efficiency is improved; in addition, because the dipping glue adopted by dipping contains free formaldehyde, the utility model also arranges an air collecting box outside the first hot air box, the waste gas from the square through hole of the hot air box and the air outlet pipeline enters the cavity of the air collecting box, and then is pumped out through the air pumping pipeline of the air collecting box and introduced into the first heating box, thereby fully utilizing the waste heat and reducing the release amount of the free formaldehyde discharged into the air.
Description
Technical Field
The utility model relates to the technical field of impregnated paper, in particular to a heat energy utilization impregnated paper production system.
Background
Melamine-Urea-Formaldehyde Impregnated Bond Paper), also known as Melamine Paper, is a plain base Paper or printing decorative Paper that is Impregnated with amino resins (Melamine Formaldehyde resins and Urea Formaldehyde resins) and dried to a certain extent to form a gummed Paper having a certain resin content and volatile content, which can be glued to each other or to an artificial board substrate by hot pressing. In order to enrich the functionality of the impregnated paper, a functional resin layer is generally required to be compounded on the impregnated paper after the impregnation treatment, and therefore, a drying device is required to be arranged after the impregnation treatment and the coating treatment, and the energy consumption is large.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a heat energy utilization impregnated paper production system which can improve the heat energy utilization efficiency and reduce the energy consumption.
The purpose of the utility model is realized by the following technical scheme:
a heat energy utilization impregnated paper production system comprises a material discharging mechanism, an impregnating mechanism, a primary drying mechanism, a coating mechanism, a secondary drying mechanism and a material receiving mechanism which are sequentially arranged according to a paper conveying direction, wherein the primary drying mechanism comprises a first conveying roller, a first hot air drying box and a second conveying roller which are sequentially arranged according to the paper conveying direction, and the secondary drying mechanism comprises a third conveying roller, a second hot air drying box and a fourth conveying roller which are sequentially arranged according to the paper conveying direction;
the first hot air drying box comprises a first air inlet pipeline, a first hot air box, a first heating box, a first air outlet pipeline, an air collecting box and an air suction pipeline, the first hot air box is arranged in the air collecting box, the air collecting box and the first hot air box are both provided with square through holes for paper to pass through, a plurality of first hot air spray heads are arranged in the first hot air box, an air inlet and an air outlet of the first air inlet pipeline are respectively communicated with an air outlet of the first heating box and an air inlet of the first hot air spray heads, an air inlet and an air outlet of the first air outlet pipeline are respectively communicated with an air outlet of the first hot air box and a cavity of the air collecting box, and an air inlet and an air outlet of the air suction pipeline are respectively communicated with the cavity of the air collecting box and the first heating box;
the second hot air drying oven comprises a second air inlet pipeline, a second hot air oven, a second heating oven and a second air outlet pipeline, the second hot air oven is provided with a square through hole for paper to pass through, a plurality of second hot air spray heads are arranged in the second hot air oven, the air inlet and the air outlet of the second air inlet pipeline are communicated with the air outlet of the second heating oven and the air inlet of the second hot air spray head respectively, and the air inlet and the air outlet of the second air outlet pipeline are communicated with the air outlet of the second hot air oven and the air inlet of the first heating oven respectively.
The first hot air drying box further comprises a purifying pipeline, an air inlet of the purifying pipeline is communicated with an air outlet of the air suction pipeline, an air outlet of the purifying pipeline is communicated with outside air, and a filtering device is arranged in the purifying pipeline.
The filtering device comprises a filtering cotton layer and an activated carbon layer, wherein the activated carbon layer is compounded on one side of the filtering cotton layer, which is close to the air outlet of the purifying pipeline.
Wherein, the air inlet of first air-out pipeline and the air inlet of extraction duct all are provided with the air exhauster.
The paper dipping mechanism comprises a dipping tank, a dipping roller rotatably arranged in the dipping tank, a lower pressing roller arranged above the dipping tank and an upper pressing roller arranged above the lower pressing roller, and the paper sequentially passes through the lower side of the first dipping roller and a gap between the upper pressing roller and the lower pressing roller.
The coating mechanism comprises a coating tank, a lower coating roller rotatably arranged in the coating tank, an upper coating roller arranged above the lower coating roller and a scraper arranged on the side of the lower coating roller.
The utility model has the beneficial effects that: the exhaust gas of the second hot air box is collected and flows back to the first heating box of the first hot air drying box for reheating, so that the waste heat of the exhaust gas of the second hot air box is fully utilized, the heating energy consumption is reduced, and the heat energy utilization efficiency is improved; in addition, because the dipping glue adopted by dipping contains free formaldehyde, the utility model also arranges an air collecting box outside the first hot air box, the waste gas from the square through hole of the hot air box and the air outlet pipeline enters the cavity of the air collecting box, and is pumped out through the air pumping pipeline of the air collecting box and introduced into the first heating box, thereby not only fully utilizing the waste heat, but also reducing the release amount of the free formaldehyde discharged into the air; according to the utility model, the air collecting box is not arranged outside the second hot air box to form the hot air internal circulation of the second hot air drying, the coating mechanism is single-sided coating, the drying pressure is lower, and the amount of hot air required by the second hot air box is less than that of the first hot air box, so that the second hot air box can be heated by external air, the first hot air box adopts the exhaust air discharged by the second hot air box, and the resource utilization efficiency is high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the first hot air box and the second hot air box of the present invention;
the reference signs are: 1-discharging mechanism, 2-dipping mechanism, 21-dipping tank, 22-dipping roller, 23-pressing, 24-pressing upper roller, 3-primary drying mechanism, 31-first transmission roller, 32-first hot air drying box, 321-first air inlet pipeline, 322-first hot air box, 3221-first hot air spray head, 323-first heating box, 324-first air outlet pipeline, 325-air collecting box, 326-air exhaust pipeline, 327-purifying pipeline, 3271-filtering cotton layer, 3272-active carbon layer, 33-second transmission roller, 4-coating mechanism, 41-coating tank, 42-lower coating roller, 43-upper coating roller, 44-scraper, 5-secondary drying mechanism, 51-third transmission roller, 52-second hot air drying box, 521-a second air inlet pipeline, 522-a second hot air box, 5221-a second hot air spray head, 523-a second heating box, 524-a second air outlet pipeline, 53-a fourth transmission roller and 6-a material receiving mechanism.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-2, which are not intended to limit the present invention.
A heat energy utilization impregnated paper production system comprises a discharging mechanism 1, an impregnating mechanism 2, a primary drying mechanism 3, a coating mechanism 4, a secondary drying mechanism 5 and a receiving mechanism 6 which are sequentially arranged according to a paper conveying direction, wherein the primary drying mechanism 3 comprises a first conveying roller 31, a first hot air drying box 32 and a second conveying roller 33 which are sequentially arranged according to the paper conveying direction, and the secondary drying mechanism 5 comprises a third conveying roller 51, a second hot air drying box 52 and a fourth conveying roller 53 which are sequentially arranged according to the paper conveying direction;
the first hot air drying box 32 comprises a first air inlet pipeline 321, a first hot air box 322, a first heating box 323, a first air outlet pipeline 324, an air collecting box 325 and an air exhaust pipeline 326, the first hot air box 322 is arranged in the air collecting box 325, the air collecting box 325 and the first hot air box 322 are both provided with square through holes for paper to pass through, a plurality of first hot air spray heads 3221 are arranged in the first hot air box 322, an air inlet and an air outlet of the first air inlet pipeline 321 are respectively communicated with an air outlet of the first heating box 323 and an air inlet of the first hot air spray heads 3221, an air inlet and an air outlet of the first air outlet pipeline 324 are respectively communicated with an air outlet of the first hot air box 322 and a cavity of the air collecting box 325, and an air inlet and an air outlet of the air exhaust pipeline 326 are respectively communicated with the cavity of the air collecting box 325 and the first heating box 323;
the second hot air drying box 52 includes a second air inlet pipe 521, a second hot air box 522, a second heating box 523 and a second air outlet pipe 524, the second hot air box 522 is provided with a square through hole for paper to pass through, a plurality of second hot air nozzles 5221 are arranged in the second hot air box 522, an air inlet and an air outlet of the second air inlet pipe 521 are respectively communicated with an air outlet of the second heating box 523 and an air inlet of the second hot air nozzles 5221, and an air inlet and an air outlet of the second air outlet pipe 524 are respectively communicated with an air outlet of the second hot air box 522 and an air inlet of the first heating box 323.
According to the utility model, the exhaust gas of the second hot air box 522 is collected and flows back to the first heating box 323 of the first hot air drying box 32 for reheating, so that the waste heat of the exhaust gas of the second hot air box 522 is fully utilized, the heating energy consumption is reduced, and the heat energy utilization efficiency is improved; in addition, because the dipping glue adopted for dipping contains free formaldehyde, the utility model also arranges the air collecting box 325 outside the first hot air box 322, the waste gas from the square through hole of the hot air box and the air outlet pipeline enters the cavity of the air collecting box 325, and then is extracted by the air extracting pipeline 326 of the air collecting box 325 and is introduced into the first heating box 323, which can not only fully utilize the residual heat, but also reduce the release amount of the free formaldehyde discharged into the air; the air collecting box 325 is not arranged outside the second hot air box 522 to form the hot air internal circulation of the second hot air drying, because the coating mechanism 4 is single-sided coating, the drying pressure is lower, and the amount of hot air required by the second hot air box 522 is less than that of the first hot air box 322, so the second hot air box 522 can be heated by external air, the first hot air box 322 adopts the outlet air discharged by the second hot air box 522, and the resource utilization efficiency is high.
The first hot air drying box 32 further includes a purifying pipeline 327, an air inlet of the purifying pipeline 327 is communicated with an air outlet of the air pumping pipeline 326, an air outlet of the purifying pipeline 327 is communicated with the outside air, and a filtering device is arranged in the purifying pipeline 327. Because the first hot air drying box 32 adopts the internal circulation of hot air and introduces the exhaust air discharged from the second hot air box 522, in order to avoid the excessive escape of the hot air from the square through hole of the air collecting box 325 caused by the excessive air pressure, the purification pipeline 327 is added for exhaust filtration treatment, so that the formaldehyde content of the exhaust air can be reduced, and the safety of the production environment can be improved.
The filtering device comprises a filtering cotton layer 3271 and an activated carbon layer 3272, wherein the activated carbon layer 3272 is compounded on one side of the filtering cotton layer 3271, which is close to the air outlet of the purifying pipeline 327. The filter cotton layer 3271 can filter dust, and the activated carbon layer 3272 can absorb formaldehyde gas by adsorption, thereby reducing the hazard of air discharged from the purifying pipe 327.
Wherein, the air inlet of the first air outlet pipeline 324 and the air inlet of the air suction pipeline 326 are both provided with exhaust fans. The exhaust fan can more actively guide the hot air.
The dipping mechanism 2 comprises a dipping tank 21, a dipping roller 22 rotatably arranged in the dipping tank 21, a lower pressing roller 23 arranged above the dipping tank 21 and an upper pressing roller 24 arranged above the lower pressing roller 23, and the paper sequentially passes through the lower side of the first dipping roller 22 and a gap between the upper pressing roller 24 and the lower pressing roller 23.
The coating mechanism 4 includes a coating tank 41, a lower coating roller 42 rotatably disposed in the coating tank 41, an upper coating roller 43 disposed above the lower coating roller 42, and a doctor blade 44 disposed on the side of the lower coating roller 42.
The dipping mechanism 2 and the coating mechanism 4 of the utility model have simple structures and high production efficiency.
The first hot air drying oven 32 and the second hot air drying oven 52 are respectively disposed above the dipping mechanism 2 and the coating mechanism 4.
Wherein, heating wires are arranged in the first heating box 323 and the second heating box 523.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (6)
1. A heat energy utilization impregnated paper production system is characterized in that: the paper feeding and drying device comprises a feeding mechanism, a dipping mechanism, a primary drying mechanism, a coating mechanism, a secondary drying mechanism and a receiving mechanism which are sequentially arranged according to the paper conveying direction, wherein the primary drying mechanism comprises a first conveying roller, a first hot air drying box and a second conveying roller which are sequentially arranged according to the paper conveying direction, and the secondary drying mechanism comprises a third conveying roller, a second hot air drying box and a fourth conveying roller which are sequentially arranged according to the paper conveying direction;
the first hot air drying box comprises a first air inlet pipeline, a first hot air box, a first heating box, a first air outlet pipeline, an air collecting box and an air suction pipeline, the first hot air box is arranged in the air collecting box, the air collecting box and the first hot air box are both provided with square through holes for paper to pass through, a plurality of first hot air spray heads are arranged in the first hot air box, an air inlet and an air outlet of the first air inlet pipeline are respectively communicated with an air outlet of the first heating box and an air inlet of the first hot air spray heads, an air inlet and an air outlet of the first air outlet pipeline are respectively communicated with an air outlet of the first hot air box and a cavity of the air collecting box, and an air inlet and an air outlet of the air suction pipeline are respectively communicated with the cavity of the air collecting box and the first heating box;
the second hot air drying oven comprises a second air inlet pipeline, a second hot air oven, a second heating oven and a second air outlet pipeline, the second hot air oven is provided with a square through hole for paper to pass through, a plurality of second hot air spray heads are arranged in the second hot air oven, the air inlet and the air outlet of the second air inlet pipeline are communicated with the air outlet of the second heating oven and the air inlet of the second hot air spray head respectively, and the air inlet and the air outlet of the second air outlet pipeline are communicated with the air outlet of the second hot air oven and the air inlet of the first heating oven respectively.
2. A thermal energy utilizing impregnated paper production system as claimed in claim 1, wherein: the first hot air drying box further comprises a purifying pipeline, an air inlet of the purifying pipeline is communicated with an air outlet of the air suction pipeline, an air outlet of the purifying pipeline is communicated with the outside air, and a filtering device is arranged in the purifying pipeline.
3. A thermal energy utilizing impregnated paper production system as claimed in claim 2, wherein: the filter device comprises a filter cotton layer and an activated carbon layer, wherein the activated carbon layer is compounded on one side of the filter cotton layer, which is close to the air outlet of the purification pipeline.
4. A thermal energy utilizing impregnated paper production system as claimed in claim 1, wherein: the air inlet of the first air outlet pipeline and the air inlet of the air suction pipeline are both provided with exhaust fans.
5. A thermal energy utilizing impregnated paper production system as claimed in claim 1, wherein: the dipping mechanism comprises a dipping tank, a dipping roller rotatably arranged in the dipping tank, a lower press roller arranged above the dipping tank and an upper press roller arranged above the lower press roller, and the paper sequentially passes through the lower side of the first dipping roller and a gap between the upper press roller and the lower press roller.
6. A thermal energy utilizing impregnated paper production system as claimed in claim 1, wherein: the coating mechanism comprises a coating groove, a lower coating roller rotationally arranged in the coating groove, an upper coating roller arranged above the lower coating roller and a scraper arranged on the side of the lower coating roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121914755.4U CN215714270U (en) | 2021-08-16 | 2021-08-16 | Heat energy utilization impregnated paper production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121914755.4U CN215714270U (en) | 2021-08-16 | 2021-08-16 | Heat energy utilization impregnated paper production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215714270U true CN215714270U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121914755.4U Active CN215714270U (en) | 2021-08-16 | 2021-08-16 | Heat energy utilization impregnated paper production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215714270U (en) |
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2021
- 2021-08-16 CN CN202121914755.4U patent/CN215714270U/en active Active
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