CN220704186U - Paper-making drying mechanism based on thermal cycle - Google Patents
Paper-making drying mechanism based on thermal cycle Download PDFInfo
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- CN220704186U CN220704186U CN202322308072.XU CN202322308072U CN220704186U CN 220704186 U CN220704186 U CN 220704186U CN 202322308072 U CN202322308072 U CN 202322308072U CN 220704186 U CN220704186 U CN 220704186U
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- 238000001035 drying Methods 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 58
- 238000005485 electric heating Methods 0.000 claims description 34
- 238000007731 hot pressing Methods 0.000 claims description 26
- 238000007791 dehumidification Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 12
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Drying Of Solid Materials (AREA)
- Paper (AREA)
Abstract
The utility model provides a paper making drying mechanism based on thermal circulation, which solves the problems of high power consumption and the like of a paper making dryer. The utility model has the advantages of good dehumidifying effect, stable structure and the like.
Description
Technical Field
The utility model belongs to the technical field of papermaking equipment, and particularly relates to a papermaking drying mechanism based on thermal circulation.
Background
In the paper making process, after the paper is pressed, the dryness of the paper is generally about 40%, and in the new pressing, the dryness can be as high as 50%, and the residual moisture must be evaporated and removed in the drying part of the paper machine. The evaporation process requires a large amount of heat energy, usually supplied in the form of steam, from which heat energy is transferred to the paper web, the drying section typically being the most energy consuming machine, and the usual equipment being a drying cylinder. However, the existing drying equipment is inconvenient for adjusting the drying temperature, and the forming quality of the follow-up paper is affected. In addition, the drying process requires a large amount of heat, and conventional drying equipment has a large heat loss, resulting in large overall power consumption of the dryer.
In order to solve the defects existing in the prior art, long-term exploration is performed, and various solutions are proposed. For example, chinese patent literature discloses a drying device [202011023871.7] for papermaking, it includes oven, the conveyer belt, the air-blower, the air-out pipeline, the air inlet pipeline, still include heating pipe and temperature sensor, temperature sensor sets up in the oven inner wall, temperature sensor is connected with the heating pipe through temperature regulating switch, the air inlet pipeline is connected with the branch pipe that airs exhaust that sets up in the oven, the branch pipe that airs exhaust sets up in the heating pipe below, equidistant air outlet that is provided with on the branch pipe that airs exhaust, the branch pipe that airs exhaust sets up to 2-5, the contained angle of air outlet and heating pipe is 60-90.
The scheme solves the problem of inconvenient adjustment of the drying temperature to a certain extent, but the scheme still has a plurality of defects, such as larger heat energy loss, rising of the whole power consumption of the dryer and the like.
Disclosure of Invention
The utility model aims at solving the problems and provides a paper-making drying mechanism based on thermal circulation, which is reasonable in design and can effectively reduce heat energy loss.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a papermaking stoving mechanism based on thermal cycle, includes the stoving box, and the inside transmission subassembly that is provided with of stoving box is provided with the subassembly of blowing relatively with transmission subassembly, and the subassembly of blowing is connected with thermal cycle system, and thermal cycle system is equipped with dehumidification subassembly and electric heating assembly, has the hot pressing subassembly with electric heating assembly intercommunication in the stoving box.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, transmission subassembly includes a plurality of equidistance and arranges the transmission deflector roll in the stoving box, and transmission deflector roll passes through linkage subassembly and transmission motor transmission to be connected, and the transmission is connected with the transmission screen surface between the transmission deflector roll.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, thermal cycle system is including the air-supply line and go out the tuber pipe of arranging in pairs, and the air-supply line is located transmission network face top and middle part and both ends respectively through shunt tubes and shunt valve intercommunication, and the shunt valve passes through air supply pipeline and fan, dehumidification subassembly and electrothermal element intercommunication in proper order.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, go out the tuber pipe and be located between the transmission deflector roll and with the air-supply line relatively, go out the tuber pipe and pass through exhaust pipeline and dehumidification subassembly and electric heating assembly intercommunication, open respectively on air-supply line and the play tuber pipe and have the wind gap along axial extension.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, dehumidification subassembly includes interconnect's condenser and evaporimeter, installs the compressor between condenser and the evaporimeter, and it has dehumidification fin and the below to be provided with the water tank to distribute on the evaporimeter, and the evaporimeter is installed in dehumidification intracavity.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, the electric heating assembly includes the electric heating coil, and the electric heating coil sets up in the electric heating chamber and electric heating coil surface is fixed with the fin.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, hot pressing subassembly includes the hot pressing deflector roll of installing in the transmission network face upper and lower side in pairs rotation, and hot pressing deflector roll and transmission network face laminating compress tightly, and hot pressing deflector roll inside is provided with the heat transfer fin that is central symmetry and arranges.
In the above-mentioned papermaking stoving mechanism based on thermal cycle, the stoving box includes the main tank body, is provided with the stoving chamber in the main tank body and open at both ends has the import and export with stoving chamber intercommunication, stoving box internal temperature sensor and humidity transducer.
In the above-mentioned papermaking drying mechanism based on thermal cycle, the main box body of the drying box body is provided with an interlayer, heat insulation cotton is filled in the interlayer, and a baffle is covered at the inlet and outlet of the drying box body.
In the above-mentioned papermaking drying mechanism based on thermal cycle, the suspension support body is installed to stoving box lower extreme, and stoving bottom of the case portion keeps keeping apart with ground.
Compared with the prior art, the utility model has the advantages that: the drying box body is internally provided with a thermal circulation system and a dehumidifying component, so that hot air circulation is realized, excessive moisture is removed, and the heat loss of the whole drying mechanism is reduced; the dehumidifying component adopts the direct contact of the condenser and hot air, the equipped dehumidifying fins quicken the moisture condensation, and the heat generated by the evaporator can be supplemented into a hot air circulation system, so that the heat utilization rate is further improved; the hot pressing assembly is used for ironing paper, so that the surface smoothness of the paper is ensured.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present utility model;
FIG. 2 is a schematic diagram of the thermal cycle system of the present utility model;
FIG. 3 is a partial schematic view of the present utility model;
FIG. 4 is a partial schematic view of the present utility model;
in the figure, a drying box 1, a main box 11, an interlayer 12, heat insulation cotton 13, a baffle 14, a suspension frame 15, a transmission assembly 2, a transmission guide roller 21, a transmission net surface 22, a blowing assembly 3, a heat circulation system 4, an air inlet pipe 41, an air outlet pipe 42, a shunt pipe 43, a shunt valve 44, a fan 45, a dehumidifying assembly 5, a condenser 51, an evaporator 52, a compressor 53, a dehumidifying fin 54, a water tank 55, an electric heating assembly 6, an electric heating coil 61, a radiating fin 62, a hot-pressing assembly 7, a hot-pressing guide roller 71 and a heat transfer fin 72.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1-4, a paper making drying mechanism based on thermal circulation comprises a drying box body 1 with a semi-closed structure, wherein heat loss is reduced, and a transmission assembly 2 is arranged in the drying box body 1 to realize uniform paper transmission. The inside subassembly 3 of blowing that is provided with of stoving box 1 and transmission subassembly 2 relatively, the subassembly 3 of blowing is connected with thermal cycle system 4, improves paper surface temperature by subassembly 3 of blowing for the evaporation of water and with its leading-in thermal cycle system 4 retrieve the heat. The thermal circulation system 4 is provided with a dehumidification assembly 5 and an electric heating assembly 6, the electric heating assembly 6 supplements heat of the electric heating assembly 6, the internal temperature is kept constant, the dehumidification assembly 5 removes redundant water, and the water evaporation rate of paper is guaranteed. The drying box body 1 is internally provided with a hot pressing assembly 7 communicated with the electric heating assembly 6, and the hot pressing assembly 7 is in direct contact with the surface of paper, so that certain pressure is applied to ensure the surface to be smooth in the paper drying process.
Specifically, similar to the existing transmission structure, the transmission assembly 2 in the application comprises a plurality of transmission guide rollers 21 which are equidistantly arranged in the drying box body 1, the transmission guide rollers 21 are in transmission connection with a transmission motor through a linkage assembly, and the adopted linkage assembly can adopt synchronous transmission structures such as belt wheel transmission and threaded screw transmission. The transmission is connected with the transmission net surface 22 between the transmission guide rollers 21, and paper is laid on the transmission net surface 22 in the transmission process, and the ventilation structure is favorable for evaporation and dissipation of water on the upper surface and the lower surface, and meanwhile, adhesion during transmission is avoided.
In depth, the thermal circulation system 4 is communicated with the blowing component 3 to realize the circulation flow of hot air, and the thermal circulation system comprises an air inlet pipe 41 and an air outlet pipe 42 which are arranged in pairs, wherein the air inlet pipe 41 is positioned above the transmission net surface 22, the middle part and the two ends of the air inlet pipe are respectively communicated with a flow dividing valve 44 through a flow dividing pipe 43, and the flow dividing valve 44 is communicated with a fan 45, the dehumidification component 5 and the electric heating component 6 through air supply pipes. Unlike conventional unidirectional air intake lines, the air intake duct 41 in the present application has a plurality of air inlets, ensuring uniform air intake and heat transfer. Avoiding deformation and wrinkling of paper caused by overlarge local air quantity.
Further, the air outlet pipe 42 is disposed inside the conveying net surface 22, the air outlet pipe 42 is located between the conveying guide rollers 21 and opposite to the air inlet pipe 41, and under the negative pressure, the paper is guaranteed to be adsorbed and attached to the conveying net surface 22, and meanwhile moisture evaporated on the surface of the paper is absorbed. The air outlet pipe 42 is communicated with the dehumidification assembly 5 and the electric heating assembly 6 through an exhaust pipeline, and the air inlet pipe 41 and the air outlet pipe 42 are respectively provided with an air port extending along the axial direction. When the temperature is lower than a preset threshold value, the electric heating assembly 6 starts to heat, and when the temperature is higher than a preset value, the dehumidifying assembly 5 absorbs heat to actively cool and dehumidify.
Still further, the present application adopts the mode of condensation dehumidification, and wherein dehumidification subassembly 5 includes interconnect's condenser 51 and evaporimeter 52, installs the compressor 53 between condenser 51 and the evaporimeter 52, and it is provided with water tank 55 to distribute dehumidification fin 54 and below on the evaporimeter 52, and the evaporimeter 52 is installed in the dehumidification intracavity. The surface temperature of the evaporator 52 is lower, moisture condenses and falls to the water tank 55 and is led out when the hot and humid air contacts, and the dry air circularly flows into the air blowing component 3, wherein the heat generated by the heat exchange of the condenser 51 is used for supplementing the heat loss caused by the compressor 53, so that the energy utilization rate of the drying mechanism is improved.
In addition, the electric heating assembly 6 is directly communicated with the blowing assembly 3, and specifically comprises an electric heating coil 61, wherein the electric heating coil 61 is arranged in the electric heating cavity, and radiating fins 62 are fixed on the surface of the electric heating coil 61. When the temperature is too low, the electric heating assembly 6 is actively started to raise the temperature, and is usually arranged inside the air inlet pipe 41 or the drying box 1.
Meanwhile, in order to ensure the surface evenness of the paper, the hot pressing assembly 7 is introduced to perform hot pressing treatment on the paper, the hot pressing assembly comprises hot pressing guide rollers 71 which are rotatably installed above and below the transmission net surface 22 in pairs, the hot pressing guide rollers 71 are attached to and pressed against the transmission net surface 22, and certain pretightening force is applied by the hot pressing guide rollers 71, so that redundant moisture in the paper can be extruded. The heat transfer fins 72 arranged in a central symmetry manner are arranged in the hot pressing guide roller 71, the heat transfer fins 72 are arranged in the hot pressing guide roller 71 and are mainly used for improving the heat exchange area with the heat circulation system 4, and the hot pressing guide roller 71 can adopt passive transmission or be linked with a transmission motor so as to synchronously transmit with the transmission guide roller 21.
The drying box 1 comprises a main box 11 in a strip shape, a drying cavity is arranged in the main box 11 as a transmission channel, two ends of the main box are provided with inlets and outlets communicated with the drying cavity, and the drying box 1 in a proper model can be selected according to paper specifications. The drying box body 1 is internally provided with a temperature sensor and a humidity sensor, and carries out feedback adjustment with the electric heating assembly 6 and the dehumidifying assembly 5 to maintain the internal temperature and humidity constant.
Obviously, because the drying box 1 is made of high heat conductivity materials such as stainless steel, in order to prevent heat loss, the interlayer 12 is arranged in the main box 11 of the drying box 1, the interlayer 12 is filled with heat insulation cotton 13 to improve the heat insulation effect, the baffle 14 is covered at the inlet and outlet of the drying box 1, and the contact surface between the drying cavity and the outside is reduced under the condition that the paper transmission is not affected.
Preferably, the whole drying base is communicated with a corresponding paper making mechanism, and in order to ensure that the transmission of a production line is consistent, the lower end of the drying box body 1 is provided with a suspension frame body 15, and the height and the orientation of the drying box body 1 are adjusted according to actual needs. The bottom of the drying box body 1 is kept isolated from the ground, and a sufficient space is reserved below the drying box body for installing components such as a thermal circulation system 4, a dehumidifying component 5 and the like.
In summary, the principle of this embodiment is as follows: the drying box body 1 is internally provided with the blowing component 3 for accelerating the evaporation of the water of the paper, the blowing component 3 is connected with the thermal circulation system 4 for recovering heat, and the circulating hot air is dehumidified and heated by the dehumidification component 5 and the electric heating component 6, so that the evaporation rate of the water is ensured.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms such as the drying box 1, the main box 11, the interlayer 12, the heat insulation cotton 13, the baffle 14, the suspension frame 15, the transfer module 2, the transfer guide roller 21, the transfer mesh 22, the blowing module 3, the heat circulation system 4, the air inlet duct 41, the air outlet duct 42, the shunt duct 43, the shunt valve 44, the blower 45, the dehumidifying module 5, the condenser 51, the evaporator 52, the compressor 53, the dehumidifying fin 54, the water tank 55, the electrothermal module 6, the electrothermal coil 61, the radiating fin 62, the hot pressing module 7, the hot pressing guide roller 71, the heat transfer fin 72 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. The utility model provides a papermaking stoving mechanism based on thermal cycle, includes stoving box (1), stoving box (1) inside be provided with transmission subassembly (2), its characterized in that, stoving box (1) inside be provided with transmission subassembly (2) relative blast module (3), blast module (3) be connected with thermal cycle system (4), thermal cycle system (4) be equipped with dehumidification subassembly (5) and electric heating assembly (6), stoving box (1) built-in hot pressing subassembly (7) with electric heating assembly (6) intercommunication.
2. The paper making drying mechanism based on thermal cycle according to claim 1, wherein the transmission assembly (2) comprises a plurality of transmission guide rollers (21) which are equidistantly arranged in the drying box body (1), the transmission guide rollers (21) are in transmission connection with the transmission motor through the linkage assembly, and a transmission net surface (22) is in transmission connection between the transmission guide rollers (21).
3. The paper making drying mechanism based on thermal circulation according to claim 2, wherein the thermal circulation system (4) comprises an air inlet pipe (41) and an air outlet pipe (42) which are arranged in pairs, the air inlet pipe (41) is positioned above the transmission net surface (22), the middle part and the two ends of the air inlet pipe are respectively communicated with a diverter valve (44) through a diverter pipe (43), and the diverter valve (44) is communicated with a fan (45), a dehumidifying component (5) and an electric heating component (6) through air supply pipelines.
4. A paper making drying mechanism based on thermal cycle according to claim 3, wherein the air outlet pipe (42) is located between the transmission guide rollers (21) and opposite to the air inlet pipe (41), the air outlet pipe (42) is communicated with the dehumidification component (5) and the electric heating component (6) through an air exhaust pipeline, and the air inlet pipe (41) and the air outlet pipe (42) are respectively provided with an air port extending along the axial direction.
5. A paper making drying mechanism based on thermal cycle as claimed in claim 3, wherein the dehumidifying component (5) comprises a condenser (51) and an evaporator (52) which are connected with each other, a compressor (53) is installed between the condenser (51) and the evaporator (52), dehumidifying fins (54) are distributed on the evaporator (52) and a water tank (55) is arranged below the evaporator (52), and the evaporator (52) is installed in the dehumidifying cavity.
6. A paper making drying mechanism based on thermal cycle according to claim 3, wherein the electric heating assembly (6) comprises an electric heating coil (61), the electric heating coil (61) is arranged in the electric heating cavity, and a radiating fin (62) is fixed on the surface of the electric heating coil (61).
7. The paper making drying mechanism based on thermal circulation according to claim 2, wherein the hot pressing assembly (7) comprises hot pressing guide rollers (71) which are installed above and below the transmission net surface (22) in a pair rotation mode, the hot pressing guide rollers (71) are attached to and pressed against the transmission net surface (22), and heat transfer fins (72) which are arranged in a central symmetry mode are arranged inside the hot pressing guide rollers (71).
8. The paper making drying mechanism based on thermal circulation according to claim 1, wherein the drying box body (1) comprises a main box body (11), a drying cavity is arranged in the main box body (11), two ends of the drying cavity are provided with inlets and outlets communicated with the drying cavity, and a temperature sensor and a humidity sensor are arranged in the drying box body (1).
9. The paper making drying mechanism based on thermal circulation according to claim 8, wherein the main box body (11) of the drying box body (1) is provided with an interlayer (12), the interlayer (12) is filled with heat insulation cotton (13), and the inlet and outlet of the drying box body (1) is covered with a baffle plate (14).
10. The paper making drying mechanism based on thermal circulation according to claim 8, wherein the lower end of the drying box body (1) is provided with a suspension frame body (15), and the bottom of the drying box body (1) is kept isolated from the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308072.XU CN220704186U (en) | 2023-08-25 | 2023-08-25 | Paper-making drying mechanism based on thermal cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308072.XU CN220704186U (en) | 2023-08-25 | 2023-08-25 | Paper-making drying mechanism based on thermal cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220704186U true CN220704186U (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308072.XU Active CN220704186U (en) | 2023-08-25 | 2023-08-25 | Paper-making drying mechanism based on thermal cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220704186U (en) |
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2023
- 2023-08-25 CN CN202322308072.XU patent/CN220704186U/en active Active
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