TWM487421U - Hot air device of drying machine - 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 close to 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.

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

Therefore, the novel hot air device 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 to 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 exhaust fans disposed at an interval and adjacent to the hot air chamber, such that the hot air can enter the hot air ducts from the hot air chamber, and pass through the material passages, and then through the exhaust air passages The exhaust fan is pumped to the outside of the machine.

The effect of the novel is that the hot air is drawn by the blowers and the exhaust fans to dry the materials, so that the hot air can be uniformly 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 effects of the present invention will be apparent from the following description of the drawings. 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 present dryer 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 Figures 3 and 4, a preferred embodiment of the present hot air device is adapted 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 blower unit 3 disposed on the first side 211 of the body 21 and an exhaust unit 4 disposed on the second side 212 of the body 21.

The air blowing unit 3 includes a hot air box 31 disposed on the first side surface 211 and having a hot air chamber 311 communicating with the drying area 222, a plurality of air blowers 32 arranged at intervals and vertically disposed in the hot air box 31, and a horizontal direction. The air ducts 32 are provided and connected to each other and are used to introduce a 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 an upright pipe portion 321 extending vertically downward from the hot air pipe 33, a mixed air pipe portion 322 connecting the upright pipe portion 321 from the top to the bottom, and two opposite ends respectively connected to the mixed air The tube portion 322 and the direct tube 323 of the hot bellows 31.

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 section 327 and a large mouth section 328 having a larger radius than the small mouth section 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 exhaust fans 41 disposed at intervals and adjacent to the hot air chamber 311, so that the hot air can enter the hot air ducts 224 from the hot air chamber 311, and pass through the material passages 223, and then through the materials The exhaust duct 225 is pumped to the outside of the body 21 by the exhaust fans 41. In the present embodiment, the number of the blowers 32 is the same as the number of the exhaust fans 41.

Referring to FIG. 5 and FIG. 6, when the large-sized dryer 2 is used, the materials to be dried are evenly dispersed to the material passages 223 of the drying zone 222 via the distribution zone 221 (see FIG. 4), and then a hot air furnace is opened. (not shown), a hot air is outputted to the hot air duct 33, and is respectively sent from the upright pipe portion 321 of each blower 32 to the mixed air duct portion 322. The hot air located in the temperature regulating section 324 and the inhaled natural wind phase are shown. Mixing to lower the temperature, the cooled hot air flows through the connecting section 325 to the direct pipe 323, and the hot air is dispersed into the hot air chamber 311 by the direct pipe 323, and is taken by the exhaust fan 41, and the hot air is located. The hot air of the chamber 311 is again mixed with the natural wind taken in from the air inlets 312, and then sent to the hot air ducts 224 of the drying area 222, and is located in the hot air ducts 224 via the extraction of the exhaust fans 41. The hot air in the air enters the exhaust ducts 225 through the materials in the adjacent material passages 223, and the materials are dried during the process, and finally the hot air flowing into the exhaust ducts 225 is passed through The exhaust fan 41 is pumped to discharge the body 21 outer.

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

1. By the action of the blower 32 and the exhaust fan 41, the hot air duct 224 of the large-sized dryer 2 has a stable hot air passage, and is not located in the conventional dryer 1 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.

In summary, 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, so that the object of the present invention can be achieved.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new 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 (6)

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 disposed laterally and connected to the air blowers for introducing a hot air; and a exhaust unit including a plurality of intervals An exhaust fan on a second side of the body, and the exhaust fans are aligned with the hot air chamber, so that the hot air can enter the hot air ducts from the hot air chamber, pass through the material passages, and then through the exhaust passages Other ventilator pumped to the machine body. The hot air device of the dryer according to claim 1, wherein the blowers are the same number as the exhaust fans. The hot air device of the dryer according to claim 2, wherein the blower has, in order from top to bottom, an upright pipe portion extending vertically downward from the hot air pipe, and a mixed air pipe portion connecting the upright pipe portion. And one or two opposite ends respectively connect the mixed air pipe portion and the direct pipe of the hot air box. The hot air device of the dryer according to claim 3, wherein the mixed air duct The portion has a temperature regulating section 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 Bundle from top to bottom. The hot air device of the dryer according to claim 4, 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 5, 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.