TWI894835B - Cyclone microwave dryer drying chamber - Google Patents

Abstract

A drying chamber for a cyclonic microwave dryer provides a drying chamber for quickly and uniformly drying materials with microwaves. The drying chamber comprises a first upright plate, a circular plate, a second upright plate, and a guide plate at the front end of the drying chamber, an inclined plate and a third upright plate at the rear end of the drying chamber, and a first side plate and a second side plate at both sides of the drying chamber corresponding to the front and rear ends of the drying chamber, respectively. The drying chamber has a chamber. , with a material inlet and a hot air outlet opposite each other at the top, and an air supply inlet at the bottom. The first upright plate is provided with a microwave port and a material discharge port. The material to be dried enters the material inlet and flows along the inclined plate into the chamber. Through the combination of the microwave port and the hot air sent in from the air supply inlet, the material to be dried continuously circulates in the chamber and along the arc plate and the guide plate, so that the material to be dried is quickly and evenly dried by microwaves, thereby increasing production efficiency.

Description

Cyclone microwave dryer drying chamber

The present invention provides a drying chamber, in particular a drying chamber for a cyclonic microwave dryer.

Existing drying equipment types include laminar dryers, rotary dryers, and disc dryers. Laminar dryers, when used with smaller objects, are limited by the aperture of the conveyor belt, resulting in poor heat transfer, slow drying speeds, and uneven drying. Therefore, the disadvantage of laminar dryers is that their multi-layer design makes them unsuitable for microwaves and results in lower efficiency.

The rotary dryer has a relatively small capacity, storing only a quarter of the barrel's volume. Larger production would likely require a production line 30-40 meters long. Therefore, the rotary dryer cannot use microwaves, as they are prone to leaks and pose a significant challenge to isolation planning.

The drawbacks of this disc dryer are low throughput, poor drying efficiency, low uniformity, the need for frequent manual turning of the dried material, and the multi-layer design, which precludes the effective use of microwaves. Therefore, improvements are clearly needed for these drying equipment.

The main purpose of this invention is to solve the problems of existing drying equipment, which mostly uses gas and electric heating to dry the material, and can only dry it slowly from the outside to the inside, which increases drying time and reduces production capacity.

To achieve the above-mentioned objectives, the present invention provides a drying chamber for a cyclonic microwave dryer, which is used to provide a drying chamber for quickly and uniformly drying the material to be dried by microwaves. The drying chamber comprises a first upright plate at the front end of the drying chamber, a circular plate connected to the upper portion of the first upright plate, a second upright plate connected to the lower end of the circular plate, and a guide plate connected between the second upright plate and the circular plate and extending along the circular plate. The drying chamber comprises an inclined plate at the rear end thereof, a third upright plate connected to the upper portion of the inclined plate and corresponding to the second upright plate, a first side plate and a second side plate located on both sides of the drying chamber and corresponding to the front and rear ends of the drying chamber, respectively. A chamber is defined within the drying chamber. A material inlet and a hot air outlet are provided on the upper portion of the drying chamber and are opposite to each other. An air supply inlet is provided on the lower portion of the drying chamber and is connected to the chamber. The chamber comprises a material storage area, a hot air outlet, and a hot air outlet. A circulation place, a channel, a feeding channel and a hot air channel. The material accumulation place is located at the bottom of the first vertical plate and the inclined plate. The circulation place is located above the first vertical plate, between the arc plate and the guide plate. The channel is located between the end of the guide plate and the inclined plate. The feeding channel is located below the feeding port, above the inclined plate and between the third vertical plate. The hot air channel is located below the hot air outlet, between the second vertical plate and the guide plate. A vertical plate is provided with a microwave inlet corresponding to the circulation area, and a discharge port below the microwave inlet and corresponding to the material accumulation area. The material to be dried enters the inlet and flows along the inclined plate to the material accumulation area. The microwave inlet combines with the hot air supplied from the air inlet to continuously circulate the material in the circulation area of the chamber and along the arc plate and the guide plate, allowing the material to be dried quickly and evenly by microwaves.

Furthermore, the microwave port of the first vertical plate is provided with a detachable access panel.

Furthermore, the end of the guide plate forms a downwardly extending baffle.

Furthermore, the second side panel is provided with at least one inspection hole for mounting at least one transparent cover.

Furthermore, there are four inspection holes, including a first inspection hole near the arc plate, a second inspection hole near the inclined plate, a third inspection hole near the upper end of the discharge port, and a fourth inspection hole near the lower end of the discharge port. Furthermore, there are four transparent covers, including a first transparent cover mounted on the first inspection hole, a second transparent cover mounted on the second inspection hole, a third transparent cover mounted on the third inspection hole, and a fourth transparent cover mounted on the fourth inspection hole.

Furthermore, the second side panel is provided with at least one maintenance hole for installing at least one fixing plate.

Furthermore, there are four maintenance holes, including a first maintenance hole near the arc plate, a second maintenance hole near the inclined plate, a third maintenance hole near the upper end of the discharge port, and a fourth maintenance hole near the lower end of the discharge port. Furthermore, there are four fixing plates, including an opaque first fixing plate mounted in the first maintenance hole, an opaque second fixing plate mounted in the second maintenance hole, an opaque third fixing plate mounted in the third maintenance hole, and an opaque fourth fixing plate mounted in the fourth maintenance hole.

Furthermore, the first upright plate further includes a discharge plate below the discharge port and pivotally connected to the first side plate and the second side plate.

Furthermore, a barrier is provided between the material inlet and the hot air outlet of the drying chamber.

Furthermore, the drying chamber further comprises a screen at the air supply inlet.

The present invention disclosed above has the following advantages compared to the existing ones:

1. The drying chamber of the cyclonic microwave dryer of the present invention allows the material to enter through the feed port, pass through the feed channel and the channel, and then enter the material storage area of the chamber along the inclined plate. Through the combination of the microwave port and the hot air supplied from the air supply port, the material to be dried continuously circulates in the chamber along the arc plate, the guide plate, and the baffle at the circulation point of the chamber, thereby quickly and evenly drying the material with microwaves, thereby increasing production efficiency.

2. The drying chamber of the cyclonic microwave dryer of the present invention uses a combination of microwaves and hot air to simultaneously dry the material inside and outside, achieving rapid and uniform microwave drying, shortening drying time and increasing production capacity.

3. The drying chamber of the cyclonic microwave dryer of the present invention is a batch continuous dryer. Its heat energy can be recycled and reused to achieve energy conservation. The special design of the drying chamber interior reduces wind damage and increases the cycle drying speed.

(This invention)

1: Cyclone Microwave Dryer

11: Heating Chamber

12: Blower

13: Air Separation Tower

2: Dry cabin

20: First upright board

201: Microwave port

202: Discharge port

203: Unloader

204: Inspection panel

21: Arc Plate

22: Second upright plank

23: Guide plate

231: Block

24: Inclined Board

25: Third upright plank

26: First side panel

27: Second side panel

271: First inspection port

272: Second inspection hole

273: Third inspection hole

274: Fourth inspection port

275: First transparent cover

276: Second transparent cover

277: Third transparent cover

278: Fourth transparent cover

28: Cabin

281: Material Storage Area

282: Circulation

283: Channel

284: Feeding channel

285: Hot air channel

29: Feeding port

290: Barrier

291: Hot air outlet

292:Air supply inlet

293: Netting

3: Dried objects

4: Microwave device

Figure 1: A three-dimensional diagram of the cyclonic microwave dryer and drying chamber of the present invention.

Figure 2: A 3D exploded view of the dry cabin in Figure 1.

Figure 3: A side view of the drying chamber in Figure 2 showing the loading of the material to be dried.

Figure 4: A side view of the drying chamber in Figure 2, showing air supply from the air inlet, agitation of the dried material, and heat dissipation from the hot air outlet.

Figure 5: A side view of the drying chamber in Figure 2, showing the dried material being unloaded after a cycle of rotation.

The following, along with the accompanying diagrams, details how the structure of the present invention is assembled and used. This should make it easier to understand the purpose, technical content, features, and effects achieved by the present invention.

Referring to Figures 1 to 3, the present invention provides a drying chamber 2 that is used in conjunction with a cyclonic microwave dryer 1 to provide a dried object 3 with rapid and uniform microwave drying.

The drying chamber 2 comprises a first upright plate 20 at the front end of the drying chamber 2, a circular arc plate 21 connected to the upper portion of the first upright plate 20, a second upright plate 22 connected to the end of the circular arc plate 21, a guide plate 23 connected between the second upright plate 22 and the circular arc plate 21 and extending along the circular arc plate 21, an inclined plate 24 at the rear end of the drying chamber 2, and a guide plate 23 connected to the upper portion of the inclined plate 24 and opposite to the first upright plate 20. The third upright plate 25 of the second upright plate 22, a first side plate 26, and a second side plate 27 located on either side of the drying chamber 2, corresponding to the front and rear ends of the drying chamber 2, respectively, define a chamber 28 within the drying chamber 2. The drying chamber 2 is provided with a feed inlet 29 and a hot air outlet 291 at the top, both connected to the chamber 28. An air supply inlet 292 is provided at the bottom, also connected to the chamber 28.

Referring again to Figures 1 to 3, in this embodiment, the chamber 28 includes a material accumulation area 281, a circulation area 282, a channel 283, a material inlet channel 284, and a hot air channel 285. The material accumulation area 281 is located at the bottom of the first upright plate 20 and the inclined plate 24. The circulation area 282 is located above the first upright plate 20 and between the arc plate 21 and the guide plate 23. The channel 283 is located at the end of the guide plate 23. The inlet channel 284 is located below the inlet port 29, between the inlet port 29 and the third upright plate 25, and between the second upright plate 22 and the guide plate 23. The hot air channel 285 is located below the hot air outlet 291 and between the second upright plate 22 and the guide plate 23. The first upright plate 20 is provided with a microwave port 201 corresponding to the circulation area 282, and a discharge port 202 below the microwave port 201 and connected to the material accumulation area 281.

In this embodiment, the microwave port 201 of the first upright plate 20 is provided with a detachable inspection panel 204, so that the inspection panel 204 can be removed for inspection and maintenance.

In this embodiment, a barrier 290 is provided between the feed inlet 29 and the hot air outlet 291. The material to be dried 3 is placed into the feed inlet 29 and enters the material storage area 281 of the chamber 28 through the feed channel 284 and the channel 283. The hot air outlet 291 allows the hot air circulating in the chamber 28 to be discharged through the channel 283 and the hot air channel 285. The air supply inlet 292 supplies hot air into the chamber 28. In one embodiment, the drying chamber 2 further includes a screen 293 positioned at the air supply inlet 292 to prevent the material to be dried 3 in the material storage area 281 from falling out of the air supply inlet 292.

In one embodiment, the first upright plate 20 further includes a discharge plate 203 located below the discharge port 202 and pivotally connected to the first side plate 26 and the second side plate 27. When the discharge plate 203 is opened, the dried material 3 after microwave drying at the material accumulation area 281 is discharged from the discharge port 202.

Referring again to Figures 3 to 5, in one embodiment, a downwardly extending baffle 231 is formed at the end of the guide plate 23. Through the baffle 231, the dried object 3 can circulate continuously along the arc plate 21 and the guide plate 23, and along the baffle 231 in the circulation area 282 of the chamber 28.

Referring again to FIG. 2 , the second side panel 27 is provided with at least one inspection hole for installing at least one transparent cover to facilitate viewing of the object to be dried 3 that is continuously rotating in the chamber 28, or the second side panel 27 is provided with at least one maintenance hole for installing at least one fixing plate. In this embodiment, there are four inspection holes: a first inspection hole 271 near the arc plate 21, a second inspection hole 272 near the inclined plate 24, a third inspection hole 273 near the upper end of the discharge port 202, and a fourth inspection hole 274 near the lower end of the discharge port 202. Furthermore, there are four transparent covers: a first transparent cover 275 mounted on the first inspection hole 271, a second transparent cover 276 mounted on the second inspection hole 272, a third transparent cover 277 mounted on the third inspection hole 273, and a fourth transparent cover 278 mounted on the fourth inspection hole 274. There are four maintenance holes. If the first transparent cover 275, the second transparent cover 276, the third transparent cover 277, and the fourth transparent cover 278 are replaced by the opaque first fixing plate, the opaque second fixing plate, the opaque third fixing plate, and the opaque fourth fixing plate, they can be removed for maintenance.

In this embodiment, the microwave port 201 can be equipped with a microwave device 4, through which the set output microwave power is activated.

Referring again to FIG. 1 , which shows the three-dimensional layout of the cyclonic microwave dryer 1 of the present invention, the cyclonic microwave dryer 1 is heated by a heating chamber 11 that is set to a desired temperature and can be activated by a burner. A blower 12 is then operated to force hot air into the drying chamber 2.

Referring again to FIG. 2 to FIG. 5 , during operation, the object to be dried 3 is fed from the feed port 29 (as shown in FIG. 3 ), passes through the feed channel 284 and the channel 283 and along the inclined plate 24 into the material accumulation area 281 of the chamber 28. The object to be dried 3 is collected at the material accumulation area 281 of the chamber 28. While feeding the material, the feed speed is adjusted. The microwave device 4 is activated to the set output microwave power. At this time, when the air inlet 292 allows the heat to flow in, the heat is released. The air enters the chamber 28 and passes through the microwave port 201. The air is combined with the hot air sent in from the air inlet 292. The dried object 3 is continuously circulated in the chamber 28 along the arc plate 21 and the guide plate 23 and along the baffle 231 at the circulation point 282 of the chamber 28. During the circulation, hot air is generated, and the hot air helps the microwave circulation. The hot air is then emitted from the hot air outlet 291 through the channel 283 and the hot air channel 285 (as shown in Figure 4). Since the object 3 to be dried may leak out when it is microwaved, the drying chamber 2 can effectively prevent leakage. When the object 3 to be dried is continuously circulated in the circulation area 282 of the chamber 28, the state of the object 3 to be dried can be observed through the first transparent cover 275, the second transparent cover 276, the third transparent cover 277 or the fourth transparent cover 278. When the object 3 is dried, the machine automatically stops when the drying time is up and the object 3 is collected in the drying chamber 28. At the material accumulation area 281 of the chamber 28, the discharge plate 203 is opened to facilitate the discharge of the dried material 3 from the discharge port 202, and the inlet 29 is closed (as shown in Figure 5). This ensures that the dried material 3 is quickly and evenly microwave-dried, shortening the drying time and increasing production efficiency. The air is then separated from the powder by an air separation tower 13, and the hot air enters the heating chamber 11 for recycling. This achieves energy-saving effects. The special design of the chamber interior reduces wind loss and increases the circulating drying speed.

However, the foregoing is merely a preferred embodiment of the present invention, intended to enable those skilled in the art to understand the present invention and implement it accordingly. It is not intended to limit the scope of the present invention. Therefore, all equivalent variations or modifications based on the shapes, structures, and features described in the scope of the present invention should be included in the scope of the patent application of the present invention.

2: Dry cabin

20: First upright board

201: Microwave port

202: Discharge port

203: Unloader

204: Inspection panel

21: Arc Plate

22: Second upright plank

24: Inclined Board

25: Third upright plank

26: First side panel

27: Second side panel

271: First inspection port

272: Second inspection hole

273: Third inspection hole

274: Fourth inspection port

275: First transparent cover

276: Second transparent cover

277: Third transparent cover

278: Fourth Transparent Cover

284: Feeding channel

285: Hot air channel

29: Feeding port

290: Barrier

291: Hot air outlet

293: Netting

4: Microwave device

Claims (10)

A drying chamber of a cyclonic microwave dryer is used to provide a drying chamber for quickly and uniformly drying a material to be dried by microwaves. The drying chamber comprises a first upright plate at the front end of the drying chamber, a circular plate connected to the upper portion of the first upright plate, a second upright plate connected to the lower end of the circular plate, a guide plate connected between the second upright plate and the circular plate and extending along the circular plate, and an inclined plate at the rear end of the drying chamber. and a third vertical plate connected to the upper portion of the inclined plate and corresponding to the second vertical plate, a first side plate and a second side plate located on both sides of the drying chamber corresponding to the front and rear ends of the drying chamber respectively. A cabin is defined inside the drying chamber. A material inlet and a hot air outlet are provided on the upper portion of the drying chamber and are opposite to each other. An air supply inlet is provided on the lower portion of the drying chamber and is connected to the cabin. The cabin includes a material storage area, a circulation area, and a passage. , a feeding channel and a hot air channel, the material accumulation area is located at the bottom of the first vertical plate and the inclined plate, the circulation area is located above the first vertical plate, between the arc plate and the guide plate, the channel is located between the end of the guide plate and the inclined plate, the feeding channel is located below the feeding port, above the inclined plate and between the third vertical plate, the hot air channel is located below the hot air outlet, between the second vertical plate and the guide plate, the first vertical plate A microwave inlet is provided corresponding to the circulation area, and a discharge port is provided below the microwave inlet and corresponding to the material accumulation area. The material to be dried enters the inlet and flows along the inclined plate to the material accumulation area. The microwave inlet is combined with the hot air supplied from the air supply inlet to continuously circulate and rotate along the arc plate and the guide plate at the circulation area of the chamber, so that the material to be dried is quickly and evenly dried by microwaves. The drying chamber of the cyclone microwave dryer as described in claim 1, wherein the microwave port of the first vertical plate is provided by a detachable inspection plate. The drying chamber of the cyclone microwave dryer as claimed in claim 1, wherein the end of the guide plate forms a baffle extending downward. The drying chamber of the cyclone microwave dryer according to claim 1, wherein the second side panel is provided with at least one inspection hole for installing at least one transparent cover. The drying chamber of a cyclonic microwave dryer as described in claim 4, wherein the number of inspection holes is four: a first inspection hole proximate the arc plate, a second inspection hole proximate the inclined plate, a third inspection hole proximate the upper end of the discharge port, and a fourth inspection hole proximate the lower end of the discharge port; and wherein the number of transparent covers is four: a first transparent cover mounted on the first inspection hole, a second transparent cover mounted on the second inspection hole, a third transparent cover mounted on the third inspection hole, and a fourth transparent cover mounted on the fourth inspection hole. The drying chamber of the cyclone microwave dryer according to claim 1, wherein the second side plate is provided with at least one maintenance hole for installing at least one fixing plate. The drying chamber of a cyclonic microwave dryer as described in claim 6, wherein the number of maintenance holes is four, including a first maintenance hole near the arc plate, a second maintenance hole near the inclined plate, a third maintenance hole near the upper end of the discharge port, and a fourth maintenance hole near the lower end of the discharge port; wherein the number of fixing plates is four, including an opaque first fixing plate mounted in the first maintenance hole, an opaque second fixing plate mounted in the second maintenance hole, an opaque third fixing plate mounted in the third maintenance hole, and an opaque fourth fixing plate mounted in the fourth maintenance hole. The drying chamber of the cyclone microwave dryer according to claim 1, wherein the first upright plate further includes a discharge plate below the discharge port and pivotally connected to the first side plate and the second side plate. The drying chamber of the cyclone microwave dryer as claimed in claim 1, wherein a barrier is provided between the material inlet and the hot air outlet of the drying chamber. The drying chamber of the cyclone microwave dryer as claimed in claim 1, wherein the drying chamber further comprises a partition at the air supply inlet.