CN213766299U - Microwave equipment applied to preheating of medium density fiberboard - Google Patents
Microwave equipment applied to preheating of medium density fiberboard Download PDFInfo
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- CN213766299U CN213766299U CN202021340997.2U CN202021340997U CN213766299U CN 213766299 U CN213766299 U CN 213766299U CN 202021340997 U CN202021340997 U CN 202021340997U CN 213766299 U CN213766299 U CN 213766299U
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Abstract
The utility model discloses a be applied to microwave equipment that well fine board preheated, including setting up the conveyer belt on the support and the microwave heating furnace that is located the conveyer belt top, microwave heating furnace's both ends have feed inlet and discharge gate respectively, microwave heating furnace establishes the outside casing of preventing microwave leakage including the heating chamber board that is located inside and the heating cavity and the cover that enclose by the heating chamber board, be located and be equipped with the microwave generator of a plurality of groups transmission microwave on the heating chamber board of heating cavity top, the heating cavity is provided with the adjustable guider who puts well fine board between two parties in the both sides symmetry respectively that are close to feed inlet one end, one side of microwave heating furnace is provided with the microwave power supply frame, control cabinet and automatically controlled cabinet, microwave power is installed to the microwave power supply frame, the control cabinet is equipped with operating panel. The equipment can be used for carrying out microwave heating on the pre-pressed medium density fiberboard before the medium density fiberboard enters a hot press for hot pressing, so that the temperature of a core layer of the board blank is increased, the temperature rise time is shortened, the solidification and adhesion of glue are accelerated, and the heating is uniform.
Description
Technical Field
The utility model relates to an artificial slab heating device technical field especially relates to a be applied to microwave equipment that well fine board preheated.
Background
The medium density fibreboard is made up of wood or plant fibre through mechanical separation and chemical treatment, mixing with adhesive and water-proofing agent, and high-temp and-pressure shaping.
At present, the hot pressing device of the existing medium density fiberboard mostly adopts a hot press for hot pressing, and a temperature rising process is needed, so that the whole production time of the medium density fiberboard is prolonged, and the production efficiency of the medium density fiberboard is influenced. The conventional heating such as flame, hot air, steam and the like utilizes the principle of heat conduction, heat is transferred from the outside to the inside of a heated object, the central temperature of the object is gradually increased, the heating is called as external heating, the surface of a product adsorbs more residual moisture in the production process of the process flow, the mildew and pollution are easily caused, a certain time is needed for the central part to reach the required temperature, and the time is longer for the object with poor heat conductivity. These conventional drying methods are long, consume a lot of power and heat the particle board less uniformly. In addition, when heating, because the medium density fiberboard is not placed in the middle on the conveyer belt, uneven heating is also easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applied to well fibreboard microwave equipment who preheats, utilize this equipment can carry out microwave heating to well fibreboard after the pre-compaction before getting into hot press hot pressing, improve the core layer temperature of slab, thereby the fibreboard is at the hot pressing intensification time of hot pressing process in the reduction, the solidification and the bonding of glue with higher speed, shorten the whole production process time of well fibreboard, the production efficiency and the energy saving of fibreboard in the improvement, the adjustable guider who sets up can be with well fibreboard centering between two parties, thereby the long and inhomogeneous problem of being heated of fibreboard intensification time among the prior art has been solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a microwave device applied to preheating a medium density fiberboard comprises a conveying belt arranged on a support and used for conveying the medium density fiberboard and a microwave heating furnace arranged above the conveying belt, wherein both ends of the microwave heating furnace are respectively provided with a feeding hole and a discharging hole, the microwave heating furnace comprises a heating box plate arranged inside, a heating cavity surrounded by the heating box plate and a microwave leakage preventing shell covered outside, a plurality of groups of microwave generators for emitting microwaves are arranged on the heating box plate arranged above the heating cavity, two sides of one end of the heating cavity close to the feeding hole are respectively and symmetrically provided with an adjustable guiding device for centering the medium density fiberboard, one side of the microwave heating furnace is provided with a microwave power supply frame, a control console and an electric control cabinet, the microwave power supply frame is provided with a microwave power supply connected with the microwave generators, the control console is provided with an operation panel, the electric control cabinet is respectively and electrically connected with the operation panel and the microwave power supply.
Further, adjustable guider includes regulating plate, connecting rod, electric telescopic handle electric connection automatically controlled cabinet, the both ends of connecting rod are connected respectively the regulating plate with electric telescopic handle's expansion end, the regulating plate is located in the heating cavity, electric telescopic handle passes through the mounting bracket setting and is in on microwave heating furnace's the outer wall, microwave heating furnace has the confession the through-hole that the connecting rod passed. Can drive the regulating plate through electric telescopic handle and remove to adjust its width scope of passing through according to the width of well fibreboard, and then make well fibreboard can be placed in the middle and put, even heating.
Furthermore, the adjusting plate is provided with a guide plate in a bending mode at one end close to the feeding hole, so that the askew placed medium density fiberboard can be guided and aligned again, and the medium density fiberboard is guided into the space between the two adjusting plates.
Further, the feed inlet with the discharge gate all is equipped with the inhibitor that prevents the microwave and leak, the inhibitor is connected with the water load. The suppressor serves to suppress microwave leakage, and the water load can absorb microwaves at the suppressor.
Furthermore, a plurality of cooling fans are arranged at the top of the microwave power supply rack, so that heat generated during the operation of the microwave power supply can be timely discharged from the microwave power supply rack.
Further, the bottom of the microwave heating furnace is provided with a stainless steel plate, and the stainless steel plate is connected and fixed with the bracket, so that microwave leakage can be further prevented.
Further, a thermocouple thermometer is arranged inside the microwave heating furnace and electrically connected with the electric control cabinet. The temperature in the microwave heating furnace is fed back in real time by using a thermocouple thermometer so as to better automatically adjust the microwave heating.
Further, the microwave generator comprises a magnetron and a fixed frame, the bottom of the fixed frame is connected with the heating box plate, and the magnetron is installed on the fixed frame.
Furthermore, each magnetron is connected with a water circulation cooling pipeline, and heat generated when the magnetron works is taken away by the water circulation cooling pipeline.
Furthermore, the side wall of the microwave heating furnace is provided with a furnace door so as to be convenient for maintenance after shutdown.
The electric control cabinet is provided with an independent PLC intelligent controller and a main switch. The heating box plate and the microwave power supply frame are processed by adopting delta 2.0 stainless steel plates and 38 multiplied by 38 square tubes. The opening size of the suppressor was 80 mm.
Compared with the prior art, the utility model provides a be applied to microwave equipment that well fine board preheated possesses following beneficial effect:
the microwave power supply can supply power to the microwave generator to emit microwaves, and the microwave power supply is arranged on the microwave power supply frame outside the microwave heating furnace, so that the microwave heating furnace is convenient to maintain and replace; the microwave leakage preventing shell can prevent the microwave emitted by the microwave generator from leaking to the outside; the operating panel arranged on the console can be used for conveniently adjusting the working parameters of the equipment to control and operate; the adjustable guiding devices on the two sides of the heating cavity can center the medium density fiberboard to be heated uniformly. By adopting an advanced microwave energy heating technology, the microwave energy penetrates through the interior of a medium density fiberboard object to be rapidly heated inside and outside simultaneously, the phenomenon of external heat and internal cooling cannot be generated during heating, the surface color of the product is unchanged and cannot be deformed during drying treatment, the advantages of high heating speed, high efficiency and processing quality improvement are achieved, and meanwhile, compared with the traditional heating mode, microwave equipment only uses electric energy, is free of pollution emission, and is more energy-saving and environment-friendly; in addition, the microwave equipment also optimizes the working environment, the automation degree is high, the microwave equipment is convenient to control, and the operation is simple.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of a planar distribution structure of the present invention;
FIG. 2 is an enlarged view of detail B in FIG. 1;
fig. 3 is a side view of the present invention;
fig. 4 is a schematic sectional view taken along the direction a-a in fig. 1.
Reference numerals: 1. a support; 11. a stainless steel plate; 2. a medium density fiberboard; 3. a conveyor belt; 4. a microwave oven; 41. a feed inlet; 42. a discharge port; 43. heating the box plate; 44. heating the cavity; 45. a microwave leakage prevention housing; 46. a through hole; 47. a suppressor; 48. water loading; 49. a furnace door; 5. a microwave generator; 51. a magnetron; 52. a fixed mount; 6. an adjustable guide; 61. an adjusting plate; 611. a guide plate; 62. a connecting rod; 63. an electric telescopic rod; 631. a mounting frame; 7. a microwave power supply rack; 71. a microwave power supply; 72. a cooling fan; 8. a console; 81. an operation panel; 9. an electric control cabinet; 91. a thermocouple thermometer; 92. and (4) a master switch.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the detailed embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 4, the present embodiment provides a microwave apparatus for preheating a middle fiber plate, including a conveyor belt 3 disposed on a support 1 for conveying the middle fiber plate 2 and a microwave heating furnace 4 disposed above the conveyor belt 3, wherein the conveyor belt 3 is driven by a power device to operate, so as to achieve automatic continuous operation. The microwave heating furnace 4 is provided with a feeding port 41 and a discharging port 42 at two ends respectively, the microwave heating furnace 4 comprises a heating box plate 43 positioned inside, a heating cavity 44 enclosed by the heating box plate 43 and a microwave leakage preventing shell 45 covered outside, a plurality of groups of microwave generators 5 for emitting microwaves are arranged on the heating box plate 43 positioned above the heating cavity 44, adjustable guiding devices 6 for centering the medium density fiberboard 2 are symmetrically arranged at two sides of one end of the heating cavity 44 close to the feeding port 41 respectively, a microwave power supply rack 7, a control console 8 and an electric control cabinet 9 are arranged at one side of the microwave heating furnace 4, a microwave power supply 71 connected with the microwave generators 5 is installed on the microwave power supply rack 7, an operation panel 81 is arranged on the control console 8, and the electric control cabinet 9 is electrically connected with the operation panel 81 and the microwave power supply 71 respectively. The microwave power supply 71 provides power to the microwave generator 5 to emit microwaves, and the microwave power supply 71 is arranged on the microwave power supply frame 7 outside the microwave heating furnace 4, so that the maintenance and the replacement are convenient; the microwave leakage preventing case 45 can prevent the microwave emitted from the microwave generator 5 from leaking to the outside; the operating panel 81 arranged on the console 8 can be used for conveniently adjusting the working parameters of the equipment to control the operation; the adjustable guides 6 on both sides of the heating chamber 44 center the center fiberboard 2 to be heated uniformly. By adopting an advanced microwave energy heating technology, the microwave energy penetrates through the interior of a medium density fiberboard object to be rapidly heated inside and outside simultaneously, the phenomenon of external heat and internal cooling cannot be generated during heating, the surface color of the product is unchanged and cannot be deformed during drying treatment, the advantages of high heating speed, high efficiency and processing quality improvement are achieved, and meanwhile, compared with the traditional heating mode, microwave equipment only uses electric energy, is free of pollution emission, and is more energy-saving and environment-friendly; in addition, the microwave equipment also optimizes the working environment, the automation degree is high, the microwave equipment is convenient to control, and the operation is simple.
Wherein, the feed inlet 41 and the discharge outlet 42 are both provided with suppressors 47 for preventing microwave leakage, and the suppressors 47 are connected with a water load 48. The suppressor 47 serves to suppress the leakage of microwaves, and the water load can absorb the microwaves at the suppressor 47.
The inside of the microwave heating furnace 4 is provided with a thermocouple thermometer 91, and the thermocouple thermometer 91 is electrically connected with the electric control cabinet 9. The temperature in the microwave oven 4 is fed back in real time by means of the thermocouple thermometer 91 in order to better automate the adjustment of the microwave heating.
The microwave generator 5 includes a magnetron 51 and a fixing bracket 52, a bottom of the fixing bracket 52 is connected to the heating chamber plate 43, and the magnetron 51 is mounted on the fixing bracket 52. Each magnetron 51 is connected with a water circulation cooling pipeline, and heat generated when the magnetron 51 works is taken away by the water circulation cooling pipeline. Preferably, the total number of the magnetrons 51 and the microwave power source 71 is 144 each, and the 144 magnetrons 51 are arranged in 4 rows in a distributed arrangement so as to uniformly heat the center fiber sheet.
The microwave oven 4 is provided with an oven door 49 on a side wall thereof so that it can be repaired after the shutdown.
Specifically, referring to fig. 2, adjustable guider 6 includes regulating plate 61, connecting rod 62 and electric telescopic handle 63, electric telescopic handle 63 electric connection automatically controlled cabinet 9, regulating plate 61 and electric telescopic handle 63's expansion end is connected respectively at the both ends of connecting rod 62, regulating plate 61 is located in the heating cavity, the curb plate face of regulating plate 61 is parallel with the direction of advance of conveyer belt 3, electric telescopic handle 63 passes through mounting bracket 631 and sets up on microwave heating furnace 4's outer wall, microwave heating furnace 4 has the through-hole 46 that supplies connecting rod 62 to pass. Can drive the direction removal that the regulating plate 61 advanced along perpendicular conveyer belt 3 through electric telescopic handle 63 to adjust its width scope of passing through according to well fibreboard 2's width, and then make well fibreboard 2 can put well between two parties, even heating.
Preferably, the adjusting plate 61 is provided with a guiding plate 611 at one end near the feed opening 41, so that the askew placed medium density fiberboard 2 is guided and aligned again and guided between the two adjusting plates 61.
Further, as a preferred embodiment, a plurality of cooling fans 72 are provided on the top of the microwave power supply rack 7 so as to discharge heat generated when the microwave power supply 71 operates from the microwave power supply rack 71 in time. Preferably, the number of the cooling fans 72 is 4.
Further, in a preferred embodiment, the stainless steel plate 11 is provided at the bottom of the microwave oven 4, and the stainless steel plate 11 is fixedly connected to the rack 1, so that the microwave leakage can be further prevented.
In this embodiment, the electric control cabinet 9 is equipped with an independent PLC intelligent controller and is provided with a main switch 92. The heating box plate 43 and the microwave power supply rack 7 are formed by processing delta 2.0 stainless steel plates and 38 multiplied by 38 square tubes. The opening size of the suppressor 47 was 80 mm.
It should be noted that in other embodiments, the number of the magnetron 51, the microwave power supply 71 and the cooling fan 72 can be selected appropriately. In some embodiments, an adjustable telescopic mechanism or a reciprocating mechanism may be used instead of the electric telescopic rod 63 to drive the adjusting plate 61 to move, such as an air cylinder.
Referring to fig. 1 to 4, before preheating the medium density fiberboard 2, the distance between two adjusting plates 61 is adjusted by an electric telescopic rod 63 according to the width of the medium density fiberboard 2; then, under the driving of the conveyer belt 3, the medium density fiberboard 2 to be preheated enters from the feed inlet 42 of the microwave heating furnace 4 along with the advance of the conveyer belt 3, and the adjustable guiding devices 6 positioned at the two sides of the heating cavity 44 can center and align the medium density fiberboard 2, so that the medium density fiberboard 2 can be uniformly heated subsequently; subsequently, under the PLC intelligent control of the electric control cabinet 9, the medium-density fiber plate 2 is quickly and uniformly subjected to microwave heating through 144 magnetrons 51, so that the core layer temperature of the plate blank is increased, and the solidification and adhesion of glue are accelerated; the operating panel 81 arranged on the console 8 can be used for conveniently adjusting the working parameters of the equipment to control the operation; the thermocouple thermometer 91 can feed back the temperature in the microwave heating furnace 4 in real time so as to better automatically adjust the microwave heating; the heated medium density fiberboard 2 is sent out from a discharge port 42 of the microwave heating furnace 4, the preheating process is completed, the whole preheating process is automatically carried out, the heating speed is high, and the heating is uniform.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A microwave device applied to preheating a medium density fiberboard comprises a conveying belt (3) arranged on a support (1) and used for conveying the medium density fiberboard (2) and a microwave heating furnace (4) arranged above the conveying belt (3), wherein a feed inlet (41) and a discharge outlet (42) are respectively arranged at two ends of the microwave heating furnace (4), the microwave heating furnace is characterized in that the microwave heating furnace (4) comprises a heating box plate (43) arranged inside, a heating cavity (44) surrounded by the heating box plate (43) and a microwave leakage preventing shell (45) covered outside, a plurality of groups of microwave generators (5) for emitting microwaves are arranged on the heating box plate (43) arranged above the heating cavity (44), two sides of one end of the heating cavity (44) close to the feed inlet (41) are respectively and symmetrically provided with adjustable guide devices (6) for centering the medium density fiberboard (2), one side of the microwave heating furnace (4) is provided with a microwave power supply frame (7), a control console (8) and an electric control cabinet (9), the microwave power supply frame (7) is provided with a microwave power supply (71) connected with the microwave generator (5), the control console (8) is provided with an operating panel (81), and the electric control cabinet (9) is electrically connected with the operating panel (81) and the microwave power supply (71) respectively.
2. The microwave equipment for preheating the medium density fiberboard of claim 1, wherein the adjustable guiding device (6) comprises an adjusting plate (61), a connecting rod (62), and an electric telescopic rod (63), the electric telescopic rod (63) is electrically connected to the electric control cabinet (9), two ends of the connecting rod (62) are respectively connected to the adjusting plate (61) and the movable end of the electric telescopic rod (63), the adjusting plate (61) is located in the heating cavity (44), the electric telescopic rod (63) is disposed on the outer wall of the microwave heating furnace (4) through a mounting frame (631), and the microwave heating furnace (4) has a through hole (46) for the connecting rod (62) to pass through.
3. The microwave equipment for preheating of medium density fiber boards of claim 2, wherein the adjusting plate (61) is provided with a guide plate (611) bent at one end near the feed inlet (41).
4. The microwave device for preheating of medium density fiberboard of claim 1, wherein the inlet (41) and the outlet (42) are each provided with a suppressor (47) for preventing microwave leakage, and a water load (48) is connected to the suppressor (47).
5. The microwave equipment for preheating medium density fiberboard of claim 1, wherein the top of the microwave power supply rack (7) is provided with a plurality of cooling fans (72).
6. The microwave equipment for preheating the medium density fiberboard of claim 1, wherein the bottom of the microwave heating furnace (4) is provided with a stainless steel plate (11), and the stainless steel plate (11) is fixedly connected with the bracket (1).
7. The microwave equipment for preheating the medium density fiberboard of claim 1, wherein a thermocouple thermometer (91) is arranged inside the microwave heating furnace (4), and the thermocouple thermometer (91) is electrically connected with the electric control cabinet (9).
8. The microwave device for preheating medium density fiber boards according to any one of claims 1 to 7, wherein the microwave generator (5) comprises a magnetron (51) and a fixing frame (52), the bottom of the fixing frame (52) is connected with the heating box plate (43), and the magnetron (51) is mounted on the fixing frame (52).
9. The microwave device for preheating medium density fiberboard of claim 8, wherein a water circulation cooling pipeline is connected to each magnetron (51).
10. The microwave equipment for preheating medium density fiberboard of claim 9, wherein the side wall of the microwave oven (4) is provided with an oven door (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340997.2U CN213766299U (en) | 2020-07-10 | 2020-07-10 | Microwave equipment applied to preheating of medium density fiberboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340997.2U CN213766299U (en) | 2020-07-10 | 2020-07-10 | Microwave equipment applied to preheating of medium density fiberboard |
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| CN213766299U true CN213766299U (en) | 2021-07-23 |
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| CN202021340997.2U Active CN213766299U (en) | 2020-07-10 | 2020-07-10 | Microwave equipment applied to preheating of medium density fiberboard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654556A (en) * | 2022-03-17 | 2022-06-24 | 福人木业（莆田）有限公司 | Environment-friendly medium density fiberboard fiber preheating combination process and production equipment thereof |
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2020
- 2020-07-10 CN CN202021340997.2U patent/CN213766299U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654556A (en) * | 2022-03-17 | 2022-06-24 | 福人木业（莆田）有限公司 | Environment-friendly medium density fiberboard fiber preheating combination process and production equipment thereof |
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