CN201059850Y - Infrared Dryer - Google Patents

Abstract

An infrared drier at least comprises an infrared drier main body, a drying chamber and a drying chamber, wherein the main body comprises a hollow roller; an infrared lamp tube located in the main body approximately at the central axis thereof; an infrared lampshade which covers the infrared lamp tube; and at least one shielding plate which is positioned above the infrared lampshade inside the roller and covers at least the length of the whole infrared lampshade.

Description

Infrared Dryer

technical field

The utility model relates to an infrared drying machine, in particular to an infrared drying machine which can be mixed at the same time.

Background technique

Infrared rays can directly transfer energy to particles without other transfer media, so that the added energy will generate heat inside the particles and cause molecular vibrations, thus heating a large number of raw material particles and their internal moisture. With the cooler air surrounding the pellet, the heat inside it will drive moisture out of the pellet interior into the surrounding air, thereby removing moisture from the pellet.

Infrared drying is based on the temperature difference between the evaporated moisture and the cooler surrounding air. This temperature difference creates a partial pressure gradient from the inside of the particle to the outside of the particle, which is the driving force for moisture removal. Infrared rays have been widely used in industrial drying applications for this characteristic. Compared with hot air dryers and vacuum dryers, which take a long time and consume a lot of energy, infrared dryers can improve the conventional shortcomings such as uneven drying, and can increase the drying effect and shorten the drying time.

As shown in Figure 1, the known infrared dryer 1 has a drum 11 and an infrared lamp frame 12, the drum 11 has an inlet 111 and an outlet 112; An infrared heater 121 is arranged on the lamp holder 12 . The inlet 111 of the drum 11 is usually provided with an upwardly bent feeding tube 13 , and a feeding tube 14 can be added above the opening 131 at the upper end of the feeding tube 13 . Usually, the raw material is introduced into the feeding cylinder 14, and the raw material is gradually fed into the upper opening 131 of the feeding tube 13 by the feeding tube 14, guided by the feeding tube 13 and sent into the drum 11 for drying. The drum 11 will roll and stir the raw materials to a certain extent, which can not only help evaporate the water vapor evaporated between the raw material particles, but also improve the uniformity of heating. In addition, due to the penetrability of infrared rays, the moisture located in the deep layer inside the raw material particles can also be evaporated smoothly.

However, in order to achieve a better and more uniform drying effect in the conventional infrared dryer 1, it is necessary to use a longer drum 11 to prolong the time of the raw material in the dryer so as to fully dry a large amount of raw material particles. However, this design will make the infrared dryer 1 bulky and increase the manufacturing cost.

In addition, a large amount of raw material particles are continuously fed into the infrared dryer used in industrial drying. If the stirring is not uniform, it may be heated unevenly, causing some raw material particles to be overheated and stick to the drum of the dryer 1. On the inner wall of 11, once there are raw material particles sticking, more and more raw material particles will accumulate on the inner wall, so the drum 11 must be replaced regularly to avoid sticking more raw material particles, which will increase the maintenance cost.

Furthermore, a plurality of rollers 150 are arranged at the bottom of the drum 11 to be responsible for driving the drum 11 to roll. These rollers 150 are connected by a connecting rod 151 to drive the rolling force, and the rolling force is provided by a transmission device 152 . After a period of use, the roller 150 at the bottom of the drum 11 may have different surface roughness and possible deformation due to different degrees of wear, which will cause the drum 11 to lose its balance, so that the particles should be stirred while going to the outlet. 112 forward conveying is hindered, or may cause the raw material particles in the drum 11 to gather somewhere and be heated unevenly at the same time, affecting the drying uniformity.

Therefore, it can be seen from the above that the conventional infrared dryers obviously have inconveniences and deficiencies, which need to be improved.

Therefore, the creator feels that the above-mentioned deficiencies can be improved, and based on the relevant experience in this field for many years, carefully observes and studies, and cooperates with the application of theories, and proposes a utility model that is reasonably designed and effectively improves the above-mentioned deficiencies. .

Utility model content

The main purpose of the utility model is to provide an infrared dryer which can heat and dry the material to be dried evenly.

Another object of the present utility model is to provide an infrared dryer which can avoid coking of the material to be dried.

Another purpose of the present utility model is to provide an infrared dryer that can make the drum roll steadily without changing the transmission combination frequently.

Yet another object of the present utility model is to provide an infrared dryer that can easily replace the infrared lamp.

Another purpose of the utility model is to provide an infrared dryer that can accelerate and expand the temperature difference between the center and surface of raw materials and improve drying efficiency.

Another object of the present invention is to provide an infrared dryer that can extend the life of the infrared lamp, improve the mixing efficiency of raw materials, and reduce the generation of powder.

In order to achieve the above and other purposes, the infrared dryer of the present utility model at least includes a main body of the infrared dryer, which includes: a hollow drum; an infrared lamp, located inside the main body approximately at the center axis position; an infrared lampshade, the cover and at least one shield, located above the infrared lampshade inside the drum, covering at least the entire length of the infrared lampshade.

In a specific embodiment of the present invention, the infrared dryer of the present invention further includes a feeding control unit, which is located outside the main body at a position corresponding to the infrared lamp and connected to the infrared lamp.

In a specific embodiment of the present invention, the infrared dryer of the present invention further includes a feeding device, which is located outside the main body and connected to the feeding control unit.

In a specific embodiment of the utility model, the shutter in the infrared dryer of the utility model has an inverted V-shaped cross-section structure and has a uniform distribution device for air volume.

In a specific embodiment of the present utility model, in the infrared dryer of the present utility model, the inner wall of the drum has continuous spiral grooves, and at least one inclined guide plate can be provided on the inner wall of the drum, and the inclined direction of the guide plate is directed toward the direction where the raw material particles advance. direction.

In a specific embodiment of the present invention, the infrared dryer of the present invention further includes a cage, wherein the roller is located inside the cage, and the infrared lampshade is fixed to the cage by hooks. And the bottom of the feeding control unit and the cage further includes a sliding combination for supporting and pulling the feeding control unit apart for easy removal of the infrared lamp when maintenance and replacement of parts are required.

In a specific embodiment of the present utility model, the sliding combination of the infrared dryer of the present utility model further includes at least one support rod, and a plurality of legs connected to each support rod, and a roller is provided under each leg, and Parallel to each of the supporting rods, a U-shaped cross-section track with a length equal to the supporting rods is arranged for the rollers to slide along the rails.

According to another viewpoint of the utility model, the utility model further provides a drum transmission assembly for rotating the drum, which at least includes a transmission device, a single rolling device and a rolling shaft connecting the transmission device and the rolling device, wherein the rolling device is located at under the drum and in direct contact with the drum. Wherein the roller is arranged at the approximate center of gravity of the drum.

The infrared drying machine of the utility model can make the material to be dried more uniformly heated and dried, avoid the material to be dried from coking in the infrared lamp tube, improve the mixing efficiency of raw materials, and reduce the generation of powder. In addition, the drum can be rolled stably without frequent replacement of the drum rolling device, and the infrared lamp can be replaced easily. Therefore, operating costs and manufacturing costs can be saved. In addition, the infrared drying machine of the utility model can accelerate and expand the temperature difference between the center and the surface of the raw material, and improve the drying efficiency.

In order to further understand the technology, means and effects that the utility model adopts to achieve the predetermined purpose, please refer to the following detailed description and accompanying drawings of the utility model, and believe that the purpose, features and characteristics of the utility model can be obtained from this For an in-depth and specific understanding, the attached drawings are only for reference and illustration, and are not intended to limit the present invention.

Description of drawings

Fig. 1 is the structural sectional view of conventional infrared dryer;

Fig. 2 is a schematic cross-sectional view of an infrared dryer according to a specific embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of a transmission combination of an infrared dryer according to a specific embodiment of the present invention;

Fig. 4 is an internal perspective view of an infrared dryer according to a specific embodiment of the present invention; and

Fig. 5 is a schematic cross-sectional view of an infrared dryer combined with a temporary storage device according to a specific embodiment of the present invention.

Explanation of main component symbols

1. Knowledge

Infrared Dryer 1

Roller 11

Entrance 111

Exit 112

Infrared light stand 12

Infrared heater 121

Feed tube 13

opening 131

Supply cylinder 14

Roller 150

connecting rod 151

Transmission 152

Two, the utility model

Infrared Dryer Main Body 2

Feeding device 21

Feed control unit 25

Infrared Dryer Main Body 2

Slide Combo 26

Support frame 27

Infrared lamp 221

Infrared lampshade 222

Feed control unit 25

Supply barrel 212

Feed port 211

first side 223

second side 224

Cage 20

Hollow drum 22

Cooling duct 231

Feed pipe 232

Shutter 220

Support rod 262

Feet 260

Roller 261

Transmission 252

Roller 253

Scroll axis 251

first side 223

second side 224

temporary storage device 24

Temporary storage barrel 241

Delivery pipe 242

Outlet 243

Detailed ways

Please refer to FIG. 2 , the utility model provides an infrared dryer, which includes a feeding device 21 , a feeding control unit 25 , an infrared dryer main body 2 , a sliding assembly 26 and a support frame 27 .

The main body 2 of the infrared dryer is preferably in a cylindrical shape, and an infrared lamp 221 and an infrared lampshade 222 covering the infrared lamp 221 are disposed in the interior approximately at the central axis. The infrared lampshade 222 of the infrared lamp 221 is connected with the feeding control unit 25, but the lampshade is fixed outside the infrared lamp 221 at a certain angle. Feeding device 21 has a feeding cylinder 212 and a material inlet 211 located below the feeding cylinder 212. The material inlet 211 is connected to the feeding control unit 25, and the infrared lamp tube 221 and the infrared light tube 221 are controlled by the feeding control unit 25. The length of heating time, heating temperature, feed amount and feed speed of lampshade 222 make the raw material particles dried by the infrared dryer of the present utility model reach the best and desired drying degree.

The main body 2 has a first side 223 and a second side 224, and includes a cage 20, a hollow drum 22 located in the cage 20, an infrared lampshade 222 located approximately at the central axis of the drum 22 and an The infrared lamp tube 221 inside the infrared lamp cover 222.

A shroud 220 is arranged above the infrared lampshade 222 in the drum 22. The shroud 220 can be a single board or a plurality of boards, and the section is formed as an inverted V-shaped or downwardly curved arc. When the raw material particles above the drum 22 fall, they will not directly fall on the infrared lampshade 222 and stick to the surface of the infrared lampshade 222 . The length of the shutter 220 is preferably equal to or greater than the length of the drum 22 to sufficiently prevent the rolling material particles from falling on the infrared lampshade 222 or the infrared lamp 221 .

In a specific embodiment, an air volume uniform distribution device may be provided on the upper surface or the lower surface of the shutter as required, so as to help the raw material particles to be evenly distributed by an appropriate air volume and air direction when the drum 22 rotates. Please refer to Fig. 2, which is a specific embodiment of the present utility model. The air volume uniform distribution device is, for example, a cooling air duct 231, which is connected from the feed control unit 25 to the drum 22. In addition to the appropriate air volume and wind direction, it can be evenly distributed. The raw material particles can also play the role of cooling the overheating of the infrared lamp tube after a period of use. In this case, a cooling duct 231 from the feed control unit 25 extends into the drum 22 from the first side of the main body 2 . The infrared lampshade 222 can be fixed on the cage body 20 by hooking.

A supporting frame 27 is provided under the main body 2 for supporting the weight of the main body 2 and fixing the main body 2 . And below the feed control unit 25 and the main body 2, a sliding assembly 26 is provided. The sliding assembly 26 has at least one support rod 262, and a plurality of legs 260 connected to each support rod 262. A roller 261 is provided below each leg 260. A U-shaped track with a length equal to that of the support bar 262 is arranged parallel to each support bar 262 so that the rollers 261 can slide along the track. When the interior of the main body 2 needs to be repaired or replaced, for example, when the infrared lamp 221 is broken and needs to be updated or the interior of the drum 22 is cleaned, the operator only needs to pull the feeding control unit 25 away from the main body 2 through the sliding assembly 26, and then Pull the infrared lamp 221 out of the main body 2 for replacement or cleaning.

Please refer to FIG. 2 and FIG. 3 , a roller transmission assembly is provided below the roller 22 in the cage body 20 , and the roller transmission assembly includes a transmission device 252 , a rolling device 253 and a rolling shaft 251 connecting the transmission device 252 and the rolling device 253 . The transmission device 252 can be a transmission motor, and the roller 253 is driven to roll by the rolling shaft 251 . The roller 253 is in contact with the roller 22 , and when the roller 253 rolls, it drives the roller 22 to rotate, so the rotation speed of the roller 22 can be controlled by controlling the transmission device 252 . The rollers 253 are arranged at approximately the center of gravity of the drum 22 , so problems such as skewing of the center of gravity of the drum due to different degrees of wear of the rollers in the prior art will not occur.

Please refer to FIG. 4 , which shows the internal structure of the drum of the infrared dryer. In this embodiment, the shroud 220 is an inverted V-shaped cross-sectional structure. The inner wall of the drum 22 has continuous spiral grooves, so that the raw material particles are gradually pushed towards the second side 224 of the main body 2 driven by the drum 22 . The inner wall of the drum 22 can further be provided with an inclined guide plate (not shown) that facilitates the advancement of the raw material particles, and the angle of inclination depends on the size of the particles to be processed and the number of particles to be processed. The number and distribution of inclined guide plates also depend on the particle size to be processed, the number of particles to be processed and the length of the drum. With the design of the continuous spiral thread on the inner wall of the drum and/or the inclined guide plate, the raw material particles can be fully stirred in the drum 22, and the raw material particles can be dispersed in the drum to achieve the purpose of evenly heating and drying the raw material particles. The length can thus be shortened, and it also helps to dissipate the evaporated water, making the drying faster and saving the energy used.

Please refer to Fig. 5, the raw material particles are slowly pushed towards the second side 224 of the main body 2 by the rolling and driving of the roller 22, and a dry material outlet 23 and a connecting rod are connected under the cage 20 near the second side 224 Temporary storage device 24 for drying material outlet 23.

The dry material outlet 23 is located above the temporary storage device 24 . The temporary storage device 24 is, for example, a temporary storage cylinder 241, and a delivery pipe 242 and a discharge port 243 are arranged below it. The delivery pipe 242 is arranged on the upper end of the temporary storage cylinder 241 and is connected with the drying material outlet 23 to remove the dried raw material The particles are output into the temporary storage cylinder 241 , and the discharge port 243 is used to output the raw materials from the temporary storage cylinder 241 for packaging or use.

When the raw material is put into the main body 2 through the drum 22 through the material inlet 211, the infrared lamp 221 emits infrared rays to dry the raw material particles. The objects that can be dried by the infrared dryer of the present utility model depend entirely on the infrared wavelength emitted by the infrared lamp 221. Taking short-wavelength infrared as an example, it can be used to dry polymer materials such as PET or PLA, and when it is desired to dry food , it is more appropriate to use long-wavelength infrared rays, so infrared lamps 221 with different wavelengths can be selected according to the different materials and properties.

To sum up, the infrared dryer of the present invention can heat and dry the material to be dried more evenly, prevent the material to be dried from coking in the infrared lamp tube, improve the mixing efficiency of raw materials, and reduce the generation of powder. In addition, the drum can be rolled stably without frequent replacement of the drum rolling device, and the infrared lamp can be replaced easily. Therefore, operating costs and manufacturing costs can be saved. In addition, the infrared drying machine of the utility model can accelerate and expand the temperature difference between the center and the surface of the raw material, and improve the drying efficiency.

However, the above descriptions are only the detailed description and drawings of the best specific embodiments of the present utility model, and the features of the present utility model are not limited thereto, and are not intended to limit the utility model and the entire scope of the utility model Should be based on the scope of the patent application, all the embodiments that conform to the spirit of the scope of the patent application of the present utility model and its similar changes, all should be included in the category of the present utility model, any person who is familiar with this skill is in the field of the present utility model , all changes or modifications that can be easily thought of can be covered by the patent scope of the present utility model.

Claims (14)

1. an infrared drier comprises an infrared drier main body at least, it is characterized in that this main body comprises:

One hollow cylinder;

One infrared lamp is positioned at body interior and is its central shaft position;

One infrared ray lampshade covers this infrared lamp; And

At least one shield is positioned at the inner infrared ray lampshade of this cylinder top, hides the length of whole at least infrared ray lampshade.

2. infrared drier as claimed in claim 1 is characterized in that: more comprise a charging control module, it is outer to position that should infrared lamp that this control module is positioned at this main body, and connect this infrared lamp.

3. infrared drier as claimed in claim 2 is characterized in that: more comprise a feed arrangement, it is positioned at, and main body is outer to be connected with this charging control module.

4. infrared drier as claimed in claim 1 is characterized in that: this shield is the structure that is reverse V-shaped section.

5. infrared drier as claimed in claim 1 is characterized in that: this shield has the air quantity distributor.

6. infrared drier as claimed in claim 1 is characterized in that: tool continuous helical dimpled grain on this inner wall of rotary drum.

7. infrared drier as claimed in claim 1 is characterized in that: further establish at least one inclined guide plate, the direction that its incline direction advances towards feed particles on this inner wall of rotary drum.

8. infrared drier as claimed in claim 3 is characterized in that: more comprise a cage body, wherein this cylinder is positioned at this cage body inside, and this infrared ray lampshade is fixed in this cage body in the hook mode.

9. infrared drier as claimed in claim 8 is characterized in that: more comprise a slip combination, be supported in the bottom of this charging control module and this cage body.

10. infrared drier as claimed in claim 9 is characterized in that: this slip combination more comprises at least one support bar, and the leg of a plurality of each these support bar of connection, and each this leg below is provided with a roller.

11. infrared drier as claimed in claim 10 is characterized in that: the U type profile track that one length equals this support bar is set being parallel to each this support bar place.

12. infrared drier as claimed in claim 1, it is characterized in that: comprise that also one is used to make the cylinder transmission combination of cylinder rotation, it comprises a transmission device at least, single tourelle and one connects the axis of rolling of this transmission device and this tourelle, and wherein this tourelle is positioned at this cylinder below and directly contacts with this cylinder.

13. cylinder transmission combination as claimed in claim 12 is characterized in that: this transmission device is a drive motor.

14. cylinder transmission combination as claimed in claim 12 is characterized in that: this roller is arranged at the position of centre of gravity place of this cylinder.

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