TWI834272B - Electromagnetic drying device - Google Patents

Abstract

The electromagnetic baking device of the present invention includes a body, two baking modules and two microwave modules. The drying material module has a drum and a spiral blade installed in the drum. The drums are installed on the frame and arranged in a stacked manner. The microwave module has a microwave driver and a waveguide connected to the microwave driver. The microwave The driver is located at one end of the drum, and the waveguide is located in the drum and surrounded by spiral blades, so that the waveguide transmits the electromagnetic waves generated by the microwave driver to the drum. In this way, the electromagnetic drying device of the present invention uses spiral blades to push the plastic contained in the drum backward. In order to allow the electromagnetic waves to irradiate each plastic evenly, the turning blades are also used to be arranged at different angles so that the electromagnetic waves can be evenly dispersed. , to improve the drying effect and increase the drying speed.

Description

Electromagnetic drying device

The invention relates to a drying device, and in particular, to an electromagnetic drying device.

The traditional microwave dryer uses a conveyor belt to transport the material, so that the material enters the heating cavity, and multiple microwave power sources dry and heat the material. However, the traditional microwave dryer cannot heat the material evenly, and there will be microwaves. Risk of leakage. In addition, the traditional microwave dryer adopts a cavity structure. The cavity structure will cause the distance of the microwave to be too far, which may affect the drying effect. In addition, traditional microwave dryers use conveyor belts to transport materials, resulting in an increase in floor space. For owners with limited factory space, their use will be restricted.

The main purpose of the present invention is to provide an electromagnetic drying device that can heat materials evenly and increase the drying speed while reducing the floor space.

In order to achieve the above main purpose, the electromagnetic baking device of the present invention includes a body, two baking modules, and two microwave modules. Each drying module has a drum and a spiral blade. The drums are rotatably mounted on the frame and are arranged in a stacked manner. Each drum has an inlet tube and an outlet tube located above. The discharge pipe of the drum is connected to the feed pipe of the drum below, and each spiral blade is provided on an inner wall of the drum and can Then rotate synchronously; each microwave module has a microwave driver and a waveguide connected to the microwave driver. Each microwave driver is located at one end of the drum. Each waveguide is located in the drum and is Surrounded by spiral blades, each waveguide transmits electromagnetic waves generated by a connected microwave driver to a drum.

As can be seen from the above, the electromagnetic drying device of the present invention uses the spiral blade to push the plastic contained in the drum backward; on the other hand, in order to allow the electromagnetic wave to evenly irradiate each plastic, the turning blade is used to rotate the material in different directions. The angle configuration enables the electromagnetic waves to be dispersed evenly to improve the drying effect and increase the drying speed. In addition, since the rollers are stacked up and down, and the materials are dried from the upper roller first and then to the lower roller, a complete drying path is provided to reduce the moisture content of the plastic. , the electromagnetic drying device of the present invention does not need to occupy a large area, thus saving the use space of the factory building.

Preferably, each drum has an outer wall, which surrounds the inner wall and forms an interlayer space between the outer wall and the inner wall. The interlayer space provides a thermal insulation effect.

Preferably, an insulation cotton is laid on the outer peripheral surface of the outer wall of each drum, and the insulation cotton prevents the hot air in the mezzanine space from escaping to the outside.

Preferably, each drying module further has a plurality of turning blades. The turning blades are arranged on the inner wall of the drum and are rotationally symmetrical around the center of the drum. By means of the turning blades, The blades uniformly stir the plastic contained in the drum.

Preferably, a moisture content detector installed in the discharge pipe is used to detect the moisture content of the plastic contained in the drum, and the detection result is fed back to a power controller, and the power controller The microwave driver is electrically connected, so that the power controller controls the power of the microwave driver according to the detection results, so that the moisture content of the plastic can be effectively controlled.

The detailed structure, features, assembly or usage of the electromagnetic baking device provided by the present invention will be described in the subsequent detailed description of the implementation. However, those with ordinary knowledge in the field of the present invention should understand that these detailed descriptions and specific examples for implementing the present invention are only used to illustrate the present invention and are not intended to limit the scope of the patent application of the present invention.

10:Electromagnetic drying device

20: Frame

30: Baking material module

31:Roller

312:Inner wall

314:Outer wall

316:Mezzanine space

318:Flange

32:Feeding pipe

33: Discharge pipe

34:Conveyor pipe

35:Collection barrel

36: Insulation cotton

362: Bracket

37:Spiral blade

38: Turning blade

39: Feeding barrel

40:Driver module

41: Motor

42:Rotating axis

43:Rotating axis

44: Transmission wheel

45: sprocket

46:Sprocket

47:Sprocket

48:Sprocket

49:Chain

50:Microwave module

51:Microwave driver

52: First waveguide

53:Second waveguide

54:Support mechanism

60: Moisture content detector

62:Power controller

Figure 1 is a perspective view of the electromagnetic drying device of the present invention.

Figure 2 is a plan view of the electromagnetic drying device of the present invention.

Figure 3 is a partial radial cross-sectional view of the baking material module provided by the electromagnetic material baking device of the present invention.

Figure 4 is a partial longitudinal cross-sectional view of the baking material module provided by the electromagnetic material baking device of the present invention.

Figure 5 is a block diagram of the electromagnetic drying device of the present invention.

The applicant would like to first explain that in the entire description, including the embodiments introduced below and the claims in the patent application scope, terms related to directionality are based on the direction in the drawings. Secondly, in the embodiments and drawings to be introduced below, the same component numbers represent the same or similar components or structural features.

Please refer to FIGS. 1 and 2 . The electromagnetic baking device 10 of the present invention includes a body 20 , two baking modules 30 , a driving module 40 , and two microwave modules 50 .

As shown in FIGS. 1 and 2 , each baking material module 30 has a roller 31 for containing plastic. The rollers 31 are rotatably mounted on the frame 20 and are arranged in a stacked manner. An inlet pipe 32 and an outlet pipe 33 are respectively provided at the two ends of each drum 31. The inlet pipe 32 of the upper drum 31 is connected to an inlet pipe 39, and the outlet pipe 33 of the upper drum 31 is connected to the lower drum 34 through a conveyor pipe 34. The feed pipe 32 of the drum 31 and the discharge pipe 33 of the lower drum 31 are connected to a collecting drum 35 provided below the frame 20 through another conveying pipe 34 . As shown in Figures 3 and 4, each drum 31 has an inner wall 312 and an outer wall 314. The outer wall 314 surrounds the inner wall 312 and forms an interlayer space 316 between the inner wall 312 and the interlayer space 316 to provide a thermal insulation effect. . In addition, an insulation cotton 36 supported by a plurality of brackets 362 is further laid on the outer circumferential surface of the outer wall 314 of each drum 31 to prevent the hot air in the mezzanine space 316 from escaping to the outside.

As shown in FIGS. 3 and 4 , each drying module 30 has a spiral blade 37 and a plurality of turning blades 38 . The spiral blades 37 are arranged on the inner wall 312 of the drum 31 so that the spiral blades 37 can rotate synchronously with the drum 31 to flip the plastic and push the plastic forward; these turning blades 38 are also arranged on the inner wall 312 of the drum 31 and surround it. The center of the drum 31 is rotationally symmetrical, so that the turning blades 38 can also rotate synchronously with the drum 31 to turn the plastic.

As shown in Figures 1 and 2, the driving module 40 has a motor 41, two rotating shafts 42, 43, four transmission wheels 44, four sprockets 45, 46, 47, 48 and two chains 49, wherein the motor 41 is located at Below the frame body 20, the rotating shafts 42 and 43 are rotatably provided on the frame body 20 and adjacent to the upper and lower rollers 31 in a one-to-one manner, and the transmission wheels 44 are provided in pairs on the frame body 20. The two ends of the rotating shafts 42 and 43 are respectively in contact with the left and right flanges 318 of the rollers 31. One sprocket 45 is connected to the motor 41, the other sprocket 46 is provided on the upper rotating shaft 42, and the remaining two sprockets 47 , 48 are located on the lower rotating shaft 43, one of the chains 49 is connected to the sprockets 45, 47, and the other chain 49 is connected to the sprockets 45 and 47. Connect sprockets 46 and 48. Thus, when the motor 41 outputs power, the motor 41 drives the lower rotating shaft 43 through the sprockets 45, 47 and the chain 49. Then the rotating shaft 43 drives the adjacent roller 31 through the two transmission wheels 44 on the one hand, and drives the adjacent roller 31 through the chain on the other hand. Wheels 48, 46 and another chain 49 drive the upper rotating shaft 42, and finally the upper rotating shaft 42 drives the adjacent roller 31 through the two transmission wheels 44, so that the upper and lower rollers 31 can be driven to rotate in place.

As shown in Figures 3 and 4, each microwave module 50 has a microwave driver 51, a first waveguide 52 connected to the microwave driver 51, a second waveguide 53 connected to the microwave driver 51, and a supporting mechanism. 54 supports the first waveguide tube 52 and the second waveguide tube 53 in the drum 31 to send electromagnetic waves into the drum 31 for baking materials. The microwave driver 51 is installed at one end of the drum 31. The length of the first waveguide 52 is greater than the length of the second waveguide 53. The first waveguide 52 and the second waveguide 53 are jointly located in the drum 31 and are surrounded by spiral blades. 37, so that the first waveguide 52 and the second waveguide 53 transmit the electromagnetic waves generated by the microwave driver 51 connected thereto to the drum 31, thereby drying and heating the plastic in the drum 31.

As can be seen from the above, the two rollers 31 provided by the electromagnetic drying device 10 of the present invention are stacked up and down, and the two upper and lower rollers 31 are used to dry the material, thereby providing a complete drying path to reduce the moisture content of the plastic. , the entire electromagnetic drying device 10 only needs about the length of one drum 31, so the occupied area is not too large, and the usable area of the factory can be effectively saved. Secondly, the electromagnetic drying device 10 of the present invention uses two microwave modules 50 to respectively provide electromagnetic waves to dry and heat plastics. Therefore, the power of the two microwave modules 50 can be adjusted according to actual needs, and can also be adjusted according to different plastic baking temperatures. Or the value of the moisture content detector 60 (in this embodiment, the position of the moisture content detector 60 is set outside the discharge pipe 33) to adjust the temperature of the upper and lower rollers 31, and at the same time, the temperature of the upper and lower rollers 31 is used. Cotton 36 To achieve insulation and energy saving effects. Furthermore, the electromagnetic drying device 10 of the present invention uses the spiral blades 37 to push the plastic in the drum 31 back on the one hand, and on the other hand, in order to allow the electromagnetic wave molecules to diffuse evenly, the turning blades 38 are arranged at different angles, so that The electromagnetic waves can be evenly dispersed, so that each plastic can be evenly exposed to the electromagnetic waves to improve the drying effect and speed up the drying.

Finally, it is necessary to add that, as shown in Figure 5, the present invention further detects the moisture content of the plastic in the drum 31 through a moisture content detector 60 provided in the discharge pipe 33, and feeds back the detection results to A power controller 62. The power controller 62 is electrically connected to the microwave driver 51, so that the power controller 62 controls the power of the microwave driver 51 according to the detection results, so that the moisture content of the plastic can be effectively controlled.

10:Electromagnetic drying device

20: Frame

31:Roller

318:Flange

32:Feeding pipe

33: Discharge pipe

34:Conveyor pipe

35:Collection barrel

36: Insulation cotton

37:Spiral blade

39: Feeding barrel

40:Driver module

41: Motor

42:Rotating axis

43:Rotating axis

44: Transmission wheel

45: sprocket

46:Sprocket

47:Sprocket

48:Sprocket

49:Chain

51:Microwave driver

54:Support mechanism

Claims (6)

An electromagnetic drying device includes: a body; Two drying material modules each have a drum and a spiral blade. The drums are rotatably mounted on the frame and are arranged in an up-and-down stack. Each drum has an inlet tube and an outlet tube located above. The discharge pipe of the drum is connected to the feed pipe of the drum below, and each spiral blade is provided on an inner wall of the drum and can rotate synchronously; and Two microwave modules each have a microwave driver and a waveguide connected to the microwave driver. Each microwave driver is located at one end of the drum. Each waveguide is located in the drum and is surrounded by a spiral blade. , so that each waveguide transmits the electromagnetic wave generated by the microwave driver connected to it to one of the drums. The electromagnetic drying device of claim 1, wherein each drum has an outer wall surrounding the inner wall and forming an interlayer space between the outer wall and the inner wall. The electromagnetic drying device according to claim 2, wherein a thermal insulation cotton is laid on the outer peripheral surface of the outer wall of each drum. The electromagnetic drying device as described in claim 1, wherein each drying module further has a plurality of turning blades, and the turning blades are arranged at different angles to evenly disperse the electromagnetic wave energy. The turning blades are configured It is rotationally symmetrical about the inner wall of the drum and around the center of the drum. The electromagnetic drying device as described in claim 1 further includes two moisture content detectors, each of which is located in a discharge pipe and detects the moisture content of a plurality of plastics contained in the drum. and feed back the detection results to a power controller, which is electrically connected to the microwave driver and controls the power of the microwave driver according to the detection results. The electromagnetic baking device of claim 1, wherein each microwave module has a supporting mechanism to support the waveguide in the drum to send electromagnetic waves into the drum for drying.

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