CN212058143U - Closed circulation dryer - Google Patents
Closed circulation dryer Download PDFInfo
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- CN212058143U CN212058143U CN202020613354.4U CN202020613354U CN212058143U CN 212058143 U CN212058143 U CN 212058143U CN 202020613354 U CN202020613354 U CN 202020613354U CN 212058143 U CN212058143 U CN 212058143U
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- drying
- drying tunnel
- single plate
- dehumidifier
- roller
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Abstract
A closed circulation dryer comprises a drying tunnel, a dehumidifier and a heat pump unit, wherein a roller device used for transmitting a single plate is arranged in the drying tunnel, a moisture discharging port is arranged below the side wall of the drying tunnel and connected with a moisture discharging pipeline, a drying port is arranged above the side wall of the drying tunnel and connected with a drying pipeline, and the dehumidifier is arranged between the moisture discharging pipeline and the drying pipeline. The closed circulation structure ensures that air circulates in the dryer all the time, thereby greatly avoiding the leakage of heat energy in the drying tunnel; the dehumidifier dehumidifies, fully retains the heat energy in the hot and humid air, realizes the effective utilization of waste heat and achieves the effect of energy conservation; the drying tunnel is internally provided with a roller device capable of continuously transmitting the single plate, the roller device comprises an upper roller and a lower roller, the single plate is placed between the upper roller and the lower roller for transmission, and the problems that the single plate is not uniformly dried and shrunk in the drying process, and cracks or cracks, warping, shrinking, node falling and the like are generated on the end surface, the surface and the inside of the single plate are reduced.
Description
Technical Field
The utility model relates to a veneer drying field, specificly a closed circulation desiccator.
Background
Drying is one of the most widely used important processes in various departments of industrial systems, and is also a process with large energy consumption. In some industrially developed countries, the energy consumed for drying accounts for about 13% -20% of the total energy consumption of the country, and in China, the energy consumed for drying accounts for about 10% of the total energy consumption. Therefore, energy saving of the drying process is a very interesting issue.
Patent CN104019643B discloses an agricultural product heat pump drying system with waste heat recovery, which uses the damp and hot waste gas discharged from the drying chamber as a part of the heat source of the heat pump system, so as to realize effective utilization of waste heat and improve the energy utilization efficiency. Patent WO2018/209951a1 discloses a dehumidifier which can avoid the situation of poor heat exchange effect and dehumidification effect due to the working temperature being more than 40 degrees when used for dehumidifying air in a drying chamber.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a closed circulation desiccator, including dry tunnel, heat pump set and circulating fan, be equipped with the cylinder device that is used for transmitting the veneer in the dry tunnel, be equipped with the hydrofuge circulation pipeline on dry tunnel's the lateral wall, be equipped with hydrofuge fan and dehumidifier in the hydrofuge circulation pipeline.
Further, the heat pump unit comprises a condenser, a compressor and an evaporator.
Further, the condenser is disposed within the drying tunnel.
Furthermore, the moisture exhaust fan is arranged at the front end of the air inlet of the dehumidifier.
Further, the circulating fan is arranged between the drying partition plate and the bottom wall of the drying tunnel.
Further, a drying partition plate is arranged between the roller device and the heat pump unit.
Further, the roller devices are at least provided with one group and are transversely arranged in the drying tunnel.
Further, the roller device comprises an upper roller and a lower roller, and the upper roller and the lower roller are provided with a plurality of rollers which are uniformly arranged at intervals.
The utility model has the advantages that: the closed circulation dryer has the advantages that air circulates in the dryer all the time, heat energy in a drying tunnel is greatly prevented from leaking, and the closed circulation dryer is energy-saving and environment-friendly; the dehumidifying fan conveys the damp and hot air in the drying tunnel to a dehumidifier for dehumidification through a dehumidifying circulation pipeline, so that the heat energy in the damp and hot air is fully reserved and then conveyed back to the drying tunnel, the effective utilization of waste heat is realized, and the effect of energy conservation is achieved; the drying tunnel is internally provided with a roller device capable of continuously transmitting the single plate, the roller device comprises an upper roller and a lower roller, the single plate is placed between the upper roller and the lower roller for transmission, and the problems that the single plate is not uniformly dried and shrunk in the drying process, and cracks or cracks, warping, shrinking, node falling and the like are generated on the end surface, the surface and the inside of the single plate are reduced.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a schematic view of a roller device transferring a veneer.
The system comprises a drying tunnel 1, a drying tunnel 2, a heat pump unit 3, a circulating fan 4, a dehumidifying circulating pipeline 5, a dehumidifying fan 6, a dehumidifier 7, a condenser 8, a drying partition plate 9, an upper roller 10 and a lower roller.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
As shown in fig. 1-2, a closed circulation dryer includes a drying tunnel 1, a heat pump unit 2, and a circulation fan 3, a drum device for conveying a single plate is disposed in the drying tunnel 1, a moisture discharge circulation pipeline 4 is disposed on a side wall of the drying tunnel 1, and a moisture discharge fan 5 and a dehumidifier 6 are disposed in the moisture discharge circulation pipeline 4.
It should be noted that, heat pump set 2 includes condenser 7, compressor and evaporimeter, and heat pump system during operation, under outdoor fan's wind pressure, the air constantly passes through the evaporimeter, and the refrigeration working medium heat transfer in damp and hot air and the evaporimeter, the heat evaporation in the damp and hot air is absorbed to the refrigeration working medium, is become high temperature high-pressure gas by low temperature low pressure gas after the compressor steps up, is used for heating by giving out heat after condenser 7 handles the air in the dry tunnel 1 again.
Preferably, a drying partition plate 8 is arranged between the roller device and the heat pump unit 2, and the drying partition plate 8 is fixed on the inner wall of the drying tunnel 1.
It should be noted that a circulating fan 3 is arranged between the drying partition 8 and the bottom wall of the drying tunnel 1, and is used for maintaining air circulation in the drying tunnel. Specifically, the circulating fan 3 drives the air in the drying tunnel 1 to circulate.
It should be noted that the dehumidification fan 5 conveys the hot and humid air in the drying tunnel 1 to the dehumidifier 6 for dehumidification through the dehumidification circulation pipeline 4, fully retains the heat energy in the hot and humid air, and conveys the hot and humid air back to the drying tunnel 1, so that the waste heat is effectively utilized, and the energy-saving effect is achieved.
It should be noted that at least one set of roller devices is provided, and is arranged transversely in the drying tunnel 1. Specifically, the roller device comprises an upper roller 9 and a lower roller 10, and the upper roller 9 and the lower roller 10 are provided with a plurality of rollers which are uniformly arranged at intervals. The veneer is placed between the upper roller and the lower roller for transmission, so that the problems of uneven drying shrinkage, cracks or cracks, warping, shrinkage, node falling and the like generated on the end surface, the surface and the inside of the veneer in the drying process are solved.
It should be noted that, the veneer is transferred from one side of the drum device to the other side for primary drying, and an operator can select whether to perform secondary drying or multiple drying according to the moisture degree of the veneer.
It should be noted that, in order to prevent heat in the drying tunnel 1 from being transferred outward, heat loss in the drying tunnel 1 is small, and a good heat preservation effect is achieved, and the heat preservation material of the outer wall of the drying tunnel 1 is preferably a heat preservation material with good heat insulation performance, such as a polyurethane heat preservation board, a rock wool board, and the like.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. It should be understood that the above description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A closed circulation dryer comprises a drying tunnel, a heat pump unit and a circulating fan and is characterized in that a roller device used for conveying a single plate is arranged in the drying tunnel, a moisture discharging circulation pipeline is arranged on the side wall of the drying tunnel, and a moisture discharging fan and a dehumidifier are arranged in the moisture discharging circulation pipeline.
2. The closed cycle dryer of claim 1, wherein the heat pump unit comprises a condenser, a compressor, and an evaporator.
3. A closed cycle dryer according to claim 2 wherein the condenser is disposed within the drying tunnel.
4. The closed cycle dryer of claim 1, wherein the dehumidifying fan is disposed at a front end of the inlet of the dehumidifier.
5. The closed cycle dryer of claim 1, wherein a drying partition is disposed between the drum assembly and the heat pump unit.
6. A closed-cycle dryer according to claim 5 wherein the circulation fan is disposed between the drying partition and the bottom wall of the drying tunnel.
7. A closed-cycle dryer according to claim 1 wherein the drum means is provided in at least one group, laterally disposed within the drying tunnel.
8. The closed-cycle dryer of claim 1, wherein the drum means comprises a plurality of upper drums and a plurality of lower drums, which are arranged at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020613354.4U CN212058143U (en) | 2020-04-22 | 2020-04-22 | Closed circulation dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020613354.4U CN212058143U (en) | 2020-04-22 | 2020-04-22 | Closed circulation dryer |
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| Publication Number | Publication Date |
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| CN212058143U true CN212058143U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020613354.4U Active CN212058143U (en) | 2020-04-22 | 2020-04-22 | Closed circulation dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146771A (en) * | 2021-06-01 | 2021-07-23 | 南平市华泰木竹有限公司 | Efficient and energy-saving veneer drying process method |
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2020
- 2020-04-22 CN CN202020613354.4U patent/CN212058143U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146771A (en) * | 2021-06-01 | 2021-07-23 | 南平市华泰木竹有限公司 | Efficient and energy-saving veneer drying process method |
| CN113146771B (en) * | 2021-06-01 | 2022-04-19 | 南平市华泰木竹有限公司 | Efficient and energy-saving veneer drying process method |
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