TWI595202B - Dryer of the hot air device - Google Patents

Description

Dry air heater

The present invention relates to a hot air device, and more particularly to a hot air device for a dryer.

Referring to Figures 1 and 2, a conventional large dryer 1 includes a body 11 defining a drying space 12 for drying a material such as grain, a blower 13 and a row of fans 14. The drying space 12 is divided into a plurality of material passages 121 through which the materials pass, and a plurality of hot air passages 122 respectively located between the adjacent material passages 121. The blower 13 and the exhaust fan 14 are respectively disposed on opposite sides of the body 11 and are adjacent to the drying space 12, and the blower 13 transmits hot air corresponding to the hot air ducts 122, and the exhaust fan 14 can pump the hot air The hot air in the passage 122 passes through the adjacent material passages 121 and is discharged outside the body 11 to cause the hot air to dry the material during the passage through the material passages 121.

Although the dryer 1 can dry the material through the material path 121 when the hot air is drawn by the blower 13 and the exhaust fan 14, but the hot air blown by the blower 13 is limited by the large lateral area of the drying space 12. The air circulates to the hot air duct 122 near the center of the dry space 12, and flows less to the hot air duct 122 located at the corner of the dry space 12, so that it can only have a better drying effect on the material near the center of the dry space 12. And can't All materials are subjected to a stable drying operation, resulting in poor drying efficiency.

At the same time, due to the large lateral area of the drying space 12, The hot air duct 122 near the exhaust fan 14 receives more and higher temperature hot air, and the hot air duct 122 away from the exhaust fan 14 passes less and lower temperature hot air. When more and higher temperature hot air passes through the material, the surface of some materials is over-baked or even turned into black due to high temperature and long heating time. However, less and lower temperature hot air causes some materials to dry. Insufficient, the inside of the material is still wet, resulting in poor drying quality.

Accordingly, it is an object of the present invention to provide a hot air device for a dryer that improves drying efficiency and drying quality.

Therefore, the hot air device of the present invention is suitable for being installed in a large dryer, the dryer comprising a body defining an internal space, the body comprising a first side and a second side opposite the first side, the The inner space is divided into a material distribution zone for uniformly distributing the materials and a drying zone for drying the materials from top to bottom. The drying zone is divided into a plurality of material passages for the materials to pass through, and the plurality of materials are respectively located in the drying zone. Hot air ducts and exhaust ducts arranged on the left and right sides of the material path and arranged in sequence.

The hot air device comprises a blowing unit disposed on the first side of the body and an air discharging unit disposed on the second side of the body.

The air blowing unit includes a hot air box disposed on the first side and having a hot air chamber communicating with the drying area, a plurality of air blowers arranged at intervals and vertically disposed in the hot air box, and a horizontally disposed and connected to the air blower The fan is used to introduce a hot air duct.

The exhaust unit includes a plurality of interval settings and is adjacent to the heat The exhaust fan of the air chamber allows the hot air to enter the hot air ducts from the hot air chamber, and passes through the material passages, and then is pumped by the exhaust fans to the outside of the machine through the exhaust ducts.

The effect of the invention is that: by the blowers and the rows The fan draws hot air to dry the material, so that the hot air can be evenly distributed to all the hot air ducts, so as to improve the drying efficiency and the drying quality.

2‧‧‧Dryer

21‧‧‧ body

211‧‧‧ first side

212‧‧‧ second side

22‧‧‧Internal space

221‧‧‧District area

222‧‧‧Drying area

223‧‧‧Material Road

224‧‧‧hot air duct

225‧‧‧ exhaust duct

3‧‧‧Air supply unit

31‧‧‧Hot bellows

311‧‧‧Hot air room

312‧‧‧ air inlet

32‧‧‧Air blower

321‧‧‧Upright pipe department

322‧‧‧ Mixed Air Department

323‧‧‧Direct tube

324‧‧ ̄ temperature adjustment section

325‧‧‧Connection section

326‧‧‧ outer perimeter

327‧‧‧Small mouth

328‧‧‧ big mouth

33‧‧‧Hot air duct

4‧‧‧ exhaust unit

41‧‧‧Exhaust fan

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is a perspective view illustrating a conventional large-sized dryer; FIG. 2 is a top plan view illustrating the prior art. Figure 3 is a perspective view showing a preferred embodiment of the hot air device of the dryer of the present invention installed in a large dryer; Figure 4 is a front elevational view showing the mounting of the preferred embodiment The dryer dries the material; Figure 5 is a perspective view showing the hot air flow path when the preferred embodiment is activated; and Figure 6 is a top plan view showing the hot air flow path when the preferred embodiment is activated.

Referring to FIG. 3 and FIG. 4, one of the hot air devices of the present invention is preferably implemented. The example is suitable for installation in a large dryer 2 comprising a body 21 defining an interior space 22. The body 21 includes a first side surface 211 and a second side surface 212 opposite to the first side surface 211. The inner space 22 is sequentially divided into a materializing zone 221 for uniformly dispersing the material and a drying zone 222 for drying the material from top to bottom. The drying zone 222 is divided into a plurality of material passages 223 for the passage of materials, and a plurality of hot air ducts 224 and exhaust ducts 225 respectively arranged on the left and right sides of the material passages 223 and arranged in sequence.

The preferred embodiment includes a first side disposed on the body 21 The air blowing unit 3 of the surface 211 and the air exhaust unit 4 disposed on the second side surface 212 of the body 21 are provided.

The air supply unit 3 includes a first side surface 211 and a hot bellows 31 having a hot air chamber 311 communicating with the drying zone 222, a plurality of blowers 32 arranged at intervals and vertically disposed in the hot bellows 31, and a laterally disposed and communicating the blowers 32 for introducing a hot air Hot air duct 33. The hot air box 31 further has a plurality of air inlets 312 arranged at intervals, and the air inlets 312 are disposed on opposite sides of the first side surface 211.

The blower 32 has a hot air duct from the top to the bottom in sequence An upright pipe portion 321 extending vertically downward, a mixed air pipe portion 322 connected to the upright pipe portion 321 , and two opposite ends are connected to the mixed air pipe portion 322 and the direct pipe 323 of the hot air box 31, respectively.

The air distribution duct portion 322 has a temperature regulating section 324 and a connecting section 325. The temperature adjustment section 324 has a larger radius than the upright tube portion 321 and can absorb a natural wind. The opposite ends of the connecting section 325 are respectively connected to the temperature regulating section 324 With the direct tube 323, and the outer shape is bundled from top to bottom.

The direct tube 323 has a flared small mouth segment 327 and A large mouth segment 328 having a radius greater than the small mouth segment 327. The small mouth portion 327 is connected to the bottom end of the connecting portion 325. The opposite ends of the large mouth portion 328 are respectively connected to the small mouth portion 327 and the hot bellows 31.

The exhaust unit 4 includes a plurality of interval settings and is adjacent to the The exhaust fan 41 of the hot air chamber 311 allows the hot air to enter the hot air ducts 224 from the hot air chambers 311, and through the material passages 223, and then is pumped to the body 21 by the exhaust fans 41 via the exhaust ducts 225. outer. In the present embodiment, the number of the blowers 32 is the same as the number of the exhaust fans 41.

Referring to Figures 5 and 6, when using the large dryer 2, it is desired to bake The dry material is evenly distributed to the material passages 223 of the drying zone 222 via the distribution zone 221 (see FIG. 4), and then a hot air furnace (not shown) is turned on to output a hot air to the hot air pipe 33, and then respectively The upright pipe portion 321 of each blower 32 is sent to the mixed air pipe portion 322, and the hot air located in the temperature regulating portion 324 is mixed with the sucked natural wind to lower the temperature, and the cooled hot air flows through the connecting portion 325 to the The direct pipe 323 is used to disperse the hot air into the hot air chamber 311 by the direct pipe 323, and the hot air located in the hot air chamber 311 and the natural wind sucked from the air inlets 312 are again extracted by the exhaust fan 41. The hot air ducts 224 are mixed and sent to the hot air ducts 224 of the drying zone 222, and the hot air located in the hot air ducts 224 passes through the materials in the adjacent material ducts 223 through the pumping of the exhaust fans 41. The exhaust ducts 225, and the drying of the materials in the process, and finally the hot air flowing into the exhaust ducts 225 is pumped through the exhaust fans 41 to discharge the body 21 outer.

Through the above description, the advantages of the present invention can be summarized as follows:

1. The present invention allows the hot air duct 224 of the large-sized dryer 2 to have a stable hot air passage by the action of the blower 32 and the exhaust fan 41, without the conventional dryer 1 being located. The problem of insufficient hot air supply or low temperature in the hot air ducts 122 in the corners can improve the drying efficiency.

2. The present invention can attract natural wind inflow and mix with the hot air by the temperature regulating section 324 of the blower 32 and the air inlet 312 of the hot air box 31 to adjust the temperature of the hot air without causing materials. When the temperature of the hot air is too high, the crack is generated, so that the effect of improving the drying quality is achieved.

3. By the same number of the blowers 32 and the exhaust fans 41, the present invention can generate stable heat convection for each hot air duct 224 and each exhaust duct 225 in the drying zone 222 to provide stable stability. Dry quality.

As described above, the present invention achieves the effects of improving the drying efficiency and the drying quality by the action of the blowers 32 and the exhaust fans 41, and thus the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

2‧‧‧Dryer

21‧‧‧ body

222‧‧‧Drying area

223‧‧‧Material Road

224‧‧‧hot air duct

225‧‧‧ exhaust duct

32‧‧‧Air blower

33‧‧‧Hot air duct

41‧‧‧Exhaust fan

Claims (3)

A hot air device for a dryer, the dryer comprising a body defining an interior space, the body comprising a first side and a second side opposite the first side, the internal space being sequentially from top to bottom Divided into a distribution zone for uniformly dispersing the material and a drying zone for drying the material, the drying zone is divided into a plurality of material passages for the passage of materials, and a plurality of the respective left and right sides of the material passages are respectively located And the hot air duct and the exhaust duct arranged in sequence, the hot air device comprises: a air supply unit disposed on the first side of the body, and comprising a hot air chamber disposed on the first side and having a connection with the drying area a hot air box, a plurality of air blowers arranged at intervals and vertically disposed in the hot air box, and a hot air duct horizontally disposed and connected to the air blowers for introducing a hot air, each blower sequentially having a top to bottom a vertical pipe portion extending vertically downward from the hot air pipe, a mixed air pipe portion connecting the vertical pipe portion, and one opposite ends respectively connecting the mixed air pipe portion and the direct pipe of the hot air box, the mixed air pipe portion having a Temperature adjustment And a connecting section, the radius of the temperature regulating section is larger than the vertical pipe part and can absorb a natural wind, and the opposite ends of the connecting section are respectively connected to the temperature regulating section and the direct pipe, and the outer shape is bundled from top to bottom. And an exhaust unit comprising a plurality of exhaust fans spaced apart from the second side of the body and having the same number as the blowers, and the exhaust fans are aligned with the hot air chamber so that the hot air can enter through the hot air chamber The hot air ducts are passed through the material passages and then pumped by the exhaust fans to the outside of the machine through the exhaust ducts. The hot air device of the dryer according to claim 1, wherein the direct pipe has a flared small mouth segment and a large mouth segment having a radius larger than the small mouth segment, the small mouth segment connecting the bottom end of the connecting segment, the large mouth The opposite ends of the segment are respectively connected to the small mouth segment and the hot bellows. The hot air device of the dryer according to claim 2, wherein the hot air box further has a plurality of air inlets arranged at intervals, the air inlets being disposed on opposite sides of the first side.