CN108955201B - Continuous drying equipment with uniform hot air distribution - Google Patents
Continuous drying equipment with uniform hot air distribution Download PDFInfo
- Publication number
- CN108955201B CN108955201B CN201810875886.2A CN201810875886A CN108955201B CN 108955201 B CN108955201 B CN 108955201B CN 201810875886 A CN201810875886 A CN 201810875886A CN 108955201 B CN108955201 B CN 108955201B
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- Prior art keywords
- air
- baffle
- furnace body
- continuous
- channel
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- 238000001035 drying Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
Abstract
The invention relates to continuous drying equipment with uniform hot air distribution, which comprises a swinging feeder, a continuous drying furnace and an air supply device, wherein the continuous drying furnace comprises a furnace body and a continuous conveying belt arranged in the furnace body, the air supply device comprises a plurality of groups of air supply units, the plurality of groups of air supply units are arranged along the length direction of the furnace body, each air supply unit comprises a fan, an uplink air channel, a downlink air channel, an upper air distributor and a lower air distributor, each upper air distributor comprises a shell, a first baffle, a second baffle, a third baffle and a fourth baffle which are all L-shaped, so that the hot air entering the inside of the furnace body is uniformly distributed, and the upper surface of the continuous conveying belt is uniformly subjected to air.
Description
Technical Field
The invention relates to the technical field of dehydrated vegetable drying equipment, in particular to continuous drying equipment with uniform hot air distribution.
Background
The dehydrated vegetable particles are dried by adopting a continuous hot-blast stove, a back-shaped conveying belt is arranged in the hot-blast stove, and materials are paved into the same thickness for guaranteeing uniform drying when being paved on the conveying belt, but in the prior art, a hot air inlet channel is often arranged on the left side or the right side of a stove body, hot air entering the stove body is uneven, the degree of drying of materials near two side walls of the stove body on the conveying belt is often severe, and yellowing and drying of the materials on the conveying belt near the two side walls of the stove body are caused.
Disclosure of Invention
It is necessary to provide a continuous drying device with uniform hot air distribution.
The continuous drying equipment with uniform hot air distribution comprises a swinging feeder, a continuous drying furnace and an air supply device, wherein the discharge end of the swinging feeder is overlapped with the feeding end of the continuous drying furnace, the continuous drying furnace comprises a furnace body and a continuous conveying belt arranged in the furnace body, the furnace body is a closed furnace body, the continuous conveying belt is a back-shaped reticular conveying belt driven by a motor, the upper section of the continuous conveying belt is used for containing materials to be dried, the air supply device comprises a plurality of groups of air supply units, the plurality of groups of air supply units are arranged along the length direction of the furnace body, each air supply unit comprises a fan, an upper air channel, a lower air channel, an upper air distributor and a lower air distributor, the fan is arranged between the upper air channel and the lower air channel, an air inlet and an air return inlet of the fan are respectively connected with the upper air channel and the lower air channel, the upper air channel passes through the side wall of the furnace body so as to be communicated with the upper part of the upper section of the continuous conveying belt, the down air duct passes through the side wall of the furnace body to be communicated with the lower part of the upper section of the continuous conveying belt, the up air duct and the down air duct are respectively alternately used as an air inlet channel and an air return channel, the upper air distributor and the lower air distributor have the same structure and are symmetrically arranged above and below the upper section of the continuous conveying belt, an upper air opening is formed at the communication part of the up air duct and the side wall of the furnace body, a lower air opening is formed at the communication part of the down air duct and the side wall of the furnace body, the upper air distributor comprises a shell, a first baffle plate, a second baffle plate, a third baffle plate and a fourth baffle plate which are all L-shaped, the upper part of the left side wall of the shell is provided with an opening matched with the upper air opening, the first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are sequentially arranged from left to right, the upper end of the first baffle plate is connected with the lower edge of the upper air opening, the upper end of the fourth baffle plate is connected with the upper edge of the upper air opening, the upper air opening is arranged between the first baffle plate and the second baffle plate, the left air channel, the middle air channel and the right air channel are respectively formed between the second baffle and the third baffle and between the third baffle and the fourth baffle, the height of the air inlet of the left air channel is the same as that of the air inlet of the right air channel, the air inlet of the left air channel is half of the opening height of the air inlet of the middle air channel, the width of the air outlet of the left air channel is the same as that of the air outlet of the right air channel, and the air outlet of the middle air channel is half of the opening width of the air outlet of the furnace body, so that the air inlet of the continuous conveying belt is uniformly distributed by the air on the upper surface.
Preferably, the upper end of the second baffle plate is further provided with a second movable plate, the second movable plate is hinged with the upper end of the second baffle plate, a plug connector is further arranged on the side wall of the shell, the plug connector is connected between the second movable plate and the side wall of the shell, so that the angle of the second movable plate is adjustable, the upper end of the third baffle plate is further provided with a third movable plate, the third movable plate is hinged with the upper end of the third baffle plate, a plug connector is further arranged on the side wall of the shell, and the plug connector is connected between the third movable plate and the side wall of the shell, so that the angle of the third movable plate is adjustable.
Preferably, the lower ends of the second baffle and the third baffle are inclined plates, so that the feeding end and the discharging end of the second baffle, the feeding end and the discharging end of the third baffle are not in the same straight line, and the lower ends of the second baffle and the third baffle are close to the upper surface of the continuous conveying belt and are in contact with the materials on the upper surface, so that the materials are turned.
Preferably, a scraping plate is further arranged outside the shell of the upper air distribution device, and the scraping plate is arranged at the bottom of the side wall of the discharging end of the shell so as to scrape materials.
Preferably, a plurality of seesaw plates are arranged side by side on the upper surface of the continuous conveying belt, the seesaw plates are arc plates with the middle protruding upwards to be not in cross contact with the upper surface of the continuous conveying belt and the two ends connected with the upper surface of the continuous conveying belt, so that the thickness of materials paved on the seesaw plates is thin in the middle and thick at the two sides.
Preferably, the two ends of the seesaw are detachably connected with the upper surface of the continuous conveyer belt, so that the seesaw is convenient to detach and clean.
Preferably, the lower air distributor has the same structure as the upper air distributor, and a plurality of water leakage holes are formed in the horizontal sections of the second baffle, the third baffle and the fourth baffle of the lower air distributor for water to flow out.
Preferably, the horizontal sections of the second baffle, the third baffle and the fourth baffle are higher than the horizontal sections of the horizontal sections, which are close to one end of the upper air port, and are far away from one end of the upper air port, so that moisture is prevented from flowing into the fan along the upper air port.
Preferably, a plurality of air exhaust channels are arranged at the top of the furnace body, and the lower ends of the air exhaust channels are communicated with the top of the furnace body between the adjacent air supply devices.
According to the invention, the upper air distributor and the lower air distributor are arranged to forcibly distribute the hot air entering the furnace body, so that the entering hot air flows to the materials according to the preset air duct and the preset air quantity, the materials on the conveying belt are uniformly subjected to air, the drying degrees are the same, and the problem of excessive drying of the materials on the conveying belt close to the two side walls of the furnace body is solved.
Drawings
Fig. 1 is a schematic structural view of a continuous drying apparatus with uniform hot air distribution.
Fig. 2 is a front view of a continuous drying apparatus with uniform hot air distribution.
Fig. 3 is a schematic cross-sectional view along D-D in fig. 2.
Fig. 4 is a schematic structural view of the upper air distributor.
Fig. 5 is a partial enlarged view of the second movable plate and the third movable plate expressed in fig. 4.
FIG. 6 is a schematic cross-sectional interior view of the upper plenum.
Fig. 7 is a bottom view of fig. 4.
Fig. 8 is a bottom view of an upper air distributor according to another embodiment, to show a schematic view of the inclined plate of the second baffle and the inclined plate of the third movable plate in fig. 7.
In the figure: swing feeder 10, continuous drying oven 20, continuous conveyor 21, rocker 22, air supply device 30, fan 31, upstream air duct 32, downstream air duct 33, upstream air distributor 34, housing 341, first baffle 342, second baffle 343, inclined plate 3431, second movable plate 3432, plug-in unit 3433, third baffle 344, third movable plate 3441, inclined plate 3442, fourth baffle 345, scraping plate 346, downstream air distributor 35, and exhaust air duct 40.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Referring to fig. 1 to 8, the embodiment of the invention provides a continuous drying device with uniform hot air distribution, which comprises a swinging feeder 10, a continuous drying furnace 20 and an air supply device 30, wherein the discharge end of the swinging feeder 10 is overlapped with the feeding end of the continuous drying furnace 20, the continuous drying furnace 20 comprises a furnace body and a continuous conveying belt 21 arranged in the furnace body, the furnace body is a closed furnace body, the continuous conveying belt 21 is a back-shaped reticular conveying belt driven by a motor, the upward section of the continuous conveying belt 21 is used for containing materials to be dried, the air supply device 30 comprises a plurality of groups of air supply units, the groups of air supply units are arranged along the length direction of the furnace body, each air supply unit comprises a fan 31, an upward air channel 32, a downward air channel 33, an upward air distributor 34 and a downward air distributor 35, the air inlet and the air return opening of the fan 31 are respectively connected with the upward air channel 32 and the downward air channel 33, so that the air inlet and the air return opening are alternately used as the air inlet or the air return opening, the uplink air duct 32 passes through the side wall of the furnace body to be communicated with the upper part of the uplink section of the continuous conveyor belt 21, the downlink air duct 33 passes through the side wall of the furnace body to be communicated with the lower part of the uplink section of the continuous conveyor belt 21, the uplink air duct 32 and the downlink air duct 33 are respectively alternately used as an air inlet channel and an air return channel, the upper air distributor 34 and the lower air distributor 35 have the same structure and are symmetrically arranged above and below the uplink section of the continuous conveyor belt 21, the upper air inlet is formed at the communication part of the uplink air duct 32 and the side wall of the furnace body, the lower air outlet is formed at the communication part of the downlink air duct 33 and the side wall of the furnace body, the upper air distributor 34 comprises a shell 341, a first baffle 342, a second baffle 343, a third baffle 344 and a fourth baffle 345, the upper part of the left side wall of the shell 341 is provided with openings matched with the upper air inlet, the first baffle 342, the second baffle 343, the third baffle 344 and the fourth baffle 345 are sequentially arranged from left to right, the upper end of the first baffle 342 is connected with the lower edge of the upper air inlet, the upper end of the fourth baffle 345 is connected with the upper edge of the upper air inlet, so that a left air channel, a middle air channel and a right air channel are respectively formed between the first baffle 342 and the second baffle 343, between the second baffle 343 and the third baffle 344 and between the third baffle 344 and the fourth baffle 345, the air inlet of the left air channel is the same as the air inlet of the right air channel in height and is half of the air inlet opening height of the middle air channel, the air outlet of the left air channel is the same as the air outlet width of the right air channel, and is half of the air outlet opening width of the middle air channel, so that hot air entering the furnace body is uniformly distributed, and the upper surface of the continuous conveyor belt 21 is uniformly subjected to wind.
Thus, the hot air volume was divided into 4 parts, 1 part for the left side air duct, 2 parts for the middle air duct, and 1 part for the right side air duct.
Further, the upper end of the second baffle 343 is further provided with a second movable plate 3432, the second movable plate 3432 is hinged to the upper end of the second baffle 343, a plug member 3433 is further provided on the side wall of the housing 341, the plug member 3433 is connected between the second movable plate 3432 and the side wall of the housing 341, so that the angle of the second movable plate 3432 is adjustable, the upper end of the third baffle 344 is further provided with a third movable plate 3441, the third movable plate 3441 is hinged to the upper end of the third baffle 344, a plug member 3433 is further provided on the side wall of the housing 341, and the plug member 3433 is connected between the third movable plate 3441 and the side wall of the housing 341, so that the angle of the third movable plate 3441 is adjustable.
Through adjusting plug connector 3433, adjust second fly leaf 3432 and third fly leaf 3441 relative degree of opening, and then adjust the relative height of opening of the air intake in left side wind channel, middle wind channel, right side wind channel, just also realized the external control of air inlet amount of wind to can adjust at any time according to the real-time stoving degree of material, make the air quantity in the middle and the amount of wind of both sides satisfy actual material stoving's demand.
Further, the lower ends of the second baffle 343 and the third baffle 344 are inclined plates 3431 and 3442, so that the feeding end and the discharging end of the second baffle 343, and the feeding end and the discharging end of the third baffle 344 are not in the same straight line, and the lower ends of the second baffle 343 and the third baffle 344 are disposed near the upper surface of the continuous conveyor belt 21 to contact with the material on the upper surface, so as to turn the material.
In the invention, the lower ends of the second baffle 343 and the third baffle 344 forming the air duct are provided with inclined plates, on the basis of no division, the material turning function is added along with the backward conveying of materials, a turning device is not required to be arranged independently, and compared with the equipment for turning materials independently, the cost is reduced and the equipment is simplified.
Further, a scraping plate 346 is provided outside the housing 341 of the upper air distributor 34, and the scraping plate 346 is provided at the bottom of the side wall of the discharge end of the housing so as to scrape the material.
Further, a plurality of seesaw plates 22 are arranged side by side on the upper surface of the continuous conveyor belt 21, wherein the seesaw plates 22 are arc plates with the middle protruding upwards to be not in contact with the upper surface of the continuous conveyor belt 21 and the two ends connected with the upper surface of the continuous conveyor belt 21, so that the thickness of materials paved on the seesaw plates 22 is thin in the middle and thick at the two sides.
Because the conveyer belt is continuous motion, when the material is laid on the upper surface of the conveyer belt by the swinging feeder 10, along with the conveying motion, the material flows to the lower parts of two sides, a middle thin and two-side thick material distribution mode is formed, and the phenomena of small middle air quantity, low temperature, large air quantity at two sides and high temperature exist in the hot air entering the furnace body, and the phenomena of large air quantity and high temperature are complemented, so that the thicker material at two sides bears the hot air with large air quantity and high temperature, the thinner material in the middle bears the hot air with small air quantity and low temperature, and the phenomena of yellowing of the materials at two sides due to the drying transition are balanced.
Further, both ends of the rocker 22 are detachably connected with the upper surface of the continuous conveyor belt 21, so that the rocker is convenient to detach and clean.
Further, the lower air distributor 35 has the same structure as the upper air distributor, and a plurality of water leakage holes are formed in the horizontal sections of the second baffle, the third baffle and the fourth baffle of the lower air distributor 35 for water to flow out.
Further, the horizontal sections of the second baffle, the third baffle and the fourth baffle of the lower air distributor 35 are higher than the ends of the upper air inlet, which are far away from the upper air inlet, so that the water is prevented from flowing into the fan 31 along the upper air inlet.
Further, a plurality of air exhaust channels 40 are arranged at the top of the furnace body, and the lower ends of the air exhaust channels 40 are communicated with the top of the furnace body between the adjacent air supply devices 30.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a hot-blast wind distribution even continuous drying equipment which characterized in that: comprises a swinging feeder, a continuous drying furnace and an air supply device, wherein the discharge end of the swinging feeder is overlapped with the feed end of the continuous drying furnace, the continuous drying furnace comprises a furnace body and a continuous conveying belt arranged in the furnace body, the furnace body is a closed furnace body, the continuous conveying belt is a back-shaped reticular conveying belt driven by a motor, the upward section of the continuous conveying belt is used for containing materials to be dried, the air supply device comprises a plurality of groups of air supply units, the plurality of groups of air supply units are arranged along the length direction of the furnace body, the air supply units comprise a fan, an upward air channel, a downward air channel, an upward air distributor and a downward air distributor, the fan is arranged between the upward air channel and the downward air channel, the air inlet and the air return opening of the fan are respectively connected with the upward air channel and the downward air channel, the upward air channel passes through the side wall of the furnace body to be communicated with the upper part of the upward section of the continuous conveying belt, the downward air channel passes through the side wall of the furnace body, the upper air duct and the lower air duct are respectively alternately used as an air inlet channel and an air return channel, the upper air distributor and the lower air distributor have the same structure and are symmetrically arranged above and below the upper section of the continuous conveyor belt, an upper air opening is formed at the communication part of the upper air duct and the side wall of the furnace body, a lower air opening is formed at the communication part of the lower air duct and the side wall of the furnace body, the upper air distributor comprises a shell, a first baffle, a second baffle, a third baffle and a fourth baffle which are all L-shaped, an opening matched with the upper air opening is formed at the upper part of the left side wall of the shell, the first baffle, the second baffle, the third baffle and the fourth baffle are sequentially arranged from left to right, the upper end of the first baffle is connected with the lower edge of the upper air opening, and the upper end of the fourth baffle is connected with the upper edge of the upper air opening, so that a space between the first baffle and the second baffle, a space between the second baffle and the third baffle, the left air channel, the middle air channel and the right air channel are respectively formed between the third baffle and the fourth baffle, the height of the air inlet of the left air channel is the same as that of the air inlet of the right air channel, and is half of the opening height of the air inlet of the middle air channel, the width of the air outlet of the left air channel is the same as that of the air outlet of the right air channel, and is half of the opening width of the air outlet of the middle air channel, so that hot air entering the furnace body is uniformly distributed, and the upper surface of the continuous conveying belt is uniformly subjected to air; the lower ends of the second baffle plate and the third baffle plate are inclined plates, so that the feeding end and the discharging end of the second baffle plate, and the feeding end and the discharging end of the third baffle plate are not in the same straight line, and the lower ends of the second baffle plate and the third baffle plate are close to the upper surface of the continuous conveying belt and are in contact with the materials on the upper surface so as to turn the materials; a scraping plate is arranged outside the shell of the upper air distributor and is arranged at the bottom of the side wall of the discharging end of the shell so as to scrape materials; the lower air distributor has the same structure as the upper air distributor, and a plurality of water leakage holes are formed in the horizontal sections of the second baffle, the third baffle and the fourth baffle of the lower air distributor for water to flow out.
2. The continuous drying apparatus for uniformly distributing hot air according to claim 1, wherein: the upper end of the second baffle plate is further provided with a second movable plate, the second movable plate is hinged with the upper end of the second baffle plate, a plug connector is arranged on the side wall of the shell, the plug connector is connected between the second movable plate and the side wall of the shell, so that the angle of the second movable plate is adjustable, the upper end of the third baffle plate is further provided with a third movable plate, the third movable plate is hinged with the upper end of the third baffle plate, the side wall of the shell is further provided with the plug connector, and the plug connector is connected between the third movable plate and the side wall of the shell, so that the angle of the third movable plate is adjustable.
3. The continuous drying apparatus for uniformly distributing hot air according to claim 2, wherein: and a plurality of seesaw plates are arranged on the upper surface of the continuous conveying belt side by side, wherein the seesaw plates are arc plates with the middle protruding upwards to be not in cross contact with the upper surface of the continuous conveying belt and the two ends connected with the upper surface of the continuous conveying belt, so that the thickness of materials paved on the seesaw plates is thin in the middle and thick at the two sides.
4. A continuous drying apparatus for uniformly distributing hot air according to claim 3, wherein: the both ends of wane can be dismantled with the upper surface of continuous conveyor belt and be connected, convenient to detach clearance.
5. The continuous drying apparatus for uniformly distributing hot air according to claim 4, wherein: the height of the horizontal sections of the second baffle, the third baffle and the fourth baffle, which is close to one end of the upper air port, is higher than that of one end, which is far away from the upper air port, so that the water is prevented from flowing into the fan along the upper air port.
6. The continuous drying apparatus for uniformly distributing hot air according to claim 1, wherein: and a plurality of air exhaust channels are arranged at the top of the furnace body, and the lower ends of the air exhaust channels are communicated with the top of the furnace body between the adjacent air supply devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875886.2A CN108955201B (en) | 2018-08-03 | 2018-08-03 | Continuous drying equipment with uniform hot air distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875886.2A CN108955201B (en) | 2018-08-03 | 2018-08-03 | Continuous drying equipment with uniform hot air distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108955201A CN108955201A (en) | 2018-12-07 |
| CN108955201B true CN108955201B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810875886.2A Active CN108955201B (en) | 2018-08-03 | 2018-08-03 | Continuous drying equipment with uniform hot air distribution |
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| CN (1) | CN108955201B (en) |
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| CN110513990B (en) * | 2019-09-17 | 2024-02-13 | 贵阳学院 | Hui font chrysanthemum mixes drying production line |
| CN112010594B (en) * | 2020-08-26 | 2022-04-19 | 阜阳市森威保温建材有限公司 | Processing method of green, environment-friendly, fireproof, waterproof and lightweight heat-insulating building material |
| CN114001547A (en) * | 2020-12-26 | 2022-02-01 | 东莞市牧彩五金电子有限公司 | Modular tunnel furnace |
| CN113883881B (en) * | 2021-10-15 | 2023-10-20 | 珠海格力电器股份有限公司 | Baffle structure, air duct, drying equipment, drying system and control method of drying system |
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