CN109744313A - A kind of high-efficiency circulation type energy-saving type grain dryer - Google Patents

A kind of high-efficiency circulation type energy-saving type grain dryer Download PDF

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Publication number
CN109744313A
CN109744313A CN201910127380.8A CN201910127380A CN109744313A CN 109744313 A CN109744313 A CN 109744313A CN 201910127380 A CN201910127380 A CN 201910127380A CN 109744313 A CN109744313 A CN 109744313A
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CN
China
Prior art keywords
heat room
room
taper pipe
heat
wall
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Pending
Application number
CN201910127380.8A
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Chinese (zh)
Inventor
陈家松
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Hefei Zhina Agriculture Technology Co Ltd
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Hefei Zhina Agriculture Technology Co Ltd
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Application filed by Hefei Zhina Agriculture Technology Co Ltd filed Critical Hefei Zhina Agriculture Technology Co Ltd
Priority to CN201910127380.8A priority Critical patent/CN109744313A/en
Publication of CN109744313A publication Critical patent/CN109744313A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying

Abstract

The present invention relates to a kind of high-efficiency circulation type energy-saving type grain dryers, including casing, positioned at the agitating paddle of casing internal, casing includes cylindric Heat Room, inverted cone shape surge chamber and cylindric unloading house, the outside of Heat Room lower end is equipped with the air inlet pipe being connected with Heat Room, the outside of Heat Room upper end is equipped with the escape pipe being connected with Heat Room, and the top of Heat Room is equipped with feed inlet;The outer cover of agitating paddle is equipped with Taper Pipe, and agitating paddle includes agitating shaft and the helical blade that is mounted on outside agitating shaft, and the lead of helical blade is continuously reduced from bottom to top.The grain drying machine is in continuous drying Shi Yici precipitation range up to 23%;Specific heat consumption is 4.3% ~ 5.1%;The uniformity of grain-drying is good, and the quality of cereal moisture percentage deviation cereal after 1.1 ~ 1.9%, drying after drying is high.

Description

A kind of high-efficiency circulation type energy-saving type grain dryer
Technical field
The present invention relates to a kind of high-efficiency circulation type energy-saving type grain dryers, belong to agricultural machinery technological field.
Background technique
In the production process of grain, usually drying the grain that place is limited, and grain depot is purchased, often moisture exceeds safe water Point, when the temperature and humidity in grain local environment meets microbial growth, will go mouldy, especially during grain purchases Cloudy day or rainy day are just being caught up with, it is even more so;In addition, the moisture of grain does not exceed safe moisture when being even put in storage, but due to Naturally it gets damp, the grain of storage is also required to periodically dry, and just can guarantee that grain does not go mouldy.
In recent years, people are dehydrated grain using grain drying device.Currently, grain drying device is usually all adopted It is assisted drying with stirring-type, stirring-type drying is mainly stirred using agitating paddle, this to be located at stirring blade attachment Cereal be easily stirred, and far from stirring blade cereal drying degree it is poor, add, close to hot wind inlet paddy Object is easily oven-dried, and the grain-drying effect far from hot wind inlet is poor, these are all the promotion of limitation drying efficiency and cereal Dry uniformity;Currently, stirring-type dryer is typically not greater than 15% in continuous drying Shi Yici precipitation range.Grain dry Uniformity is poor, to cereal progress 5 times or more random moisture measurements after drying, finds the extent of deviation of measurement result usually all 6.5% or more;When grain moisture deviation is very big, it will lead to that grain moisture content is excessive or too small, and grain moisture content is excessive easily makes At grain quality problem, and grain moisture content is too small to bring economic loss directly to farmer.
Summary of the invention
The present invention has in view of the deficienciess of the prior art, providing a kind of high-efficiency circulation type energy-saving type grain dryer Body technique scheme is as follows:
A kind of high-efficiency circulation type energy-saving type grain dryer, including casing, positioned at the agitating paddle of casing internal, the casing includes Cylindric Heat Room, inverted cone shape surge chamber and cylindric unloading house, the lower end of the Heat Room are connected to the big end of surge chamber, institute The small end for stating surge chamber is connected to the upper end of unloading house;Be provided on the outside of the Heat Room lower end be connected with Heat Room into Tracheae is provided with the escape pipe being connected with Heat Room on the outside of the Heat Room upper end, is provided at the top of the Heat Room Feed inlet;The outer cover of the agitating paddle is equipped with Taper Pipe, and the agitating paddle includes agitating shaft and the spiral shell that is mounted on outside agitating shaft The lead of vane piece, the helical blade is continuously reduced from bottom to top, between the periphery of the helical blade and the inner wall of Taper Pipe It is provided with gap;Gap is provided between the outer wall of the Taper Pipe and the inner wall of Heat Room.
As an improvement of the above technical solution, the region between the outer wall of the Taper Pipe and the inner wall of Heat Room is secondary changes The upper end in hot cell, the secondary heat exchange room is connected to the upper end of Taper Pipe, and the lower end of the secondary heat exchange room and the lower end of Taper Pipe connect Logical, the lower end of the secondary heat exchange room is connected to the big end of surge chamber, and the inner wall of the secondary heat exchange room is interleaved and installed with downwards Inclined oblique heat exchanger plates.
As an improvement of the above technical solution, the upper end of the unloading house is equipped with blow-off valve.
As an improvement of the above technical solution, the cone angle of the helical blade be α, 8 °≤α≤17 °;The helical blade Cone angle be equal to Taper Pipe inner wall cone angle.
As an improvement of the above technical solution, being fixedly provided with for the Heat Room draws material right above Taper Pipe upper end Plate, the outside drawn flitch and feed inlet is set.
Beneficial effects of the present invention:
The high-efficiency circulation type energy-saving type grain dryer is in continuous drying Shi Yici precipitation range up to 23%;Specific heat consumption exists 4.3%~5.1%;The uniformity of grain-drying is good, the matter of cereal moisture percentage deviation cereal after 1.1 ~ 1.9%, drying after drying Amount is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high-efficiency circulation type energy-saving type grain dryer of the present invention;
Fig. 2 is the structural schematic diagram of agitating paddle of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
As shown in Figure 1, 2, the high-efficiency circulation type energy-saving type grain dryer, including casing, stirring positioned at casing internal Paddle is mixed, the casing includes cylindric Heat Room 11, inverted cone shape surge chamber 12 and cylindric unloading house 13, the Heat Room 11 Lower end is connected to the big end of surge chamber 12, and the small end of the surge chamber 12 is connected to the upper end of unloading house 13;The Heat Room 11 It is provided with the air inlet pipe 111 being connected with Heat Room 11 on the outside of lower end, is provided with and changes on the outside of 11 upper end of Heat Room The top of the escape pipe 112 that hot cell 11 is connected, the Heat Room 11 is provided with feed inlet 113;The outer cover of the agitating paddle It equipped with Taper Pipe 20, is fixedly connected between the Taper Pipe 20 and the inner wall of Heat Room 11 by connecting rod, the agitating paddle includes stirring Axis 31 and the helical blade 32 being mounted on outside agitating shaft 31, the agitating shaft 31 by the motor driven that is mounted on outside casing, The lead of the helical blade 32 is continuously reduced from bottom to top, is set between the periphery of the helical blade 32 and the inner wall of Taper Pipe 20 It is equipped with gap;Gap is provided between the outer wall of the Taper Pipe 20 and the inner wall of Heat Room 11.Further, the Taper Pipe 20 Region between outer wall and the inner wall of Heat Room 11 is secondary heat exchange room 40, upper end and the Taper Pipe 20 of the secondary heat exchange room 40 Upper end connection, the lower end of the secondary heat exchange room 40 be connected to the lower end of Taper Pipe 20, the lower end of the secondary heat exchange room 40 with delay The big end connection of room 12 is rushed, the inner wall of the secondary heat exchange room 40 is interleaved and installed with the oblique heat exchanger plates 30 tilted down.Further Ground, for convenience of discharge, the upper end of the unloading house 13 is equipped with blow-off valve 131.
Cereal to be dried can be fed to the inside of casing by hopper from feed inlet 113, and cereal to be dried is in weight The inside of Taper Pipe 20 is fallen under the action of power;High-temperature hot-air enters Heat Room 11 from air inlet pipe 111, and the agitating paddle starts to stir Operation is mixed, the cereal inside Taper Pipe 20 is lifted up by helical blade 32, since the lead of helical blade 32 is continuous from bottom to top Reduce, along with the bore of 20 upper end of Taper Pipe is less than the bore of its lower end, this to be mentioned at 20 upper end of Taper Pipe by helical blade 32 The cereal discharging speed risen is smaller, this is conducive to control discharging speed, while when can extend delay of the cereal inside Taper Pipe 20 Between, Taper Pipe 20 is heated by high-temperature hot-air, is conducive to the efficiency for improving heat exchange, drying cereal;Meanwhile helical blade 32 lower end is led Journey is larger, and along with the bore of 20 lower end of Taper Pipe is larger, this is conducive to for the cereal at 11 lower end of Heat Room being lifted up, and reduces Promote difficulty.When cereal from the upper end of Taper Pipe 20 release after, can along Taper Pipe 20 outer wall secondary heat exchange room 40 inside to Lower flowing, since the upper end space of secondary heat exchange room 40 is big and the space of its lower end is small, this is conducive to raising cereal and changes secondary Residence time inside hot cell 40, to improve heat exchange efficiency;Meanwhile the oblique heat exchanger plates 30 that are staggered have increase heat-transfer surface Product improves the advantages of residence time of the cereal inside secondary heat exchange room 40, to further increase cereal in secondary heat exchange room Drying effect and drying efficiency inside 40.Since the upper end of the secondary heat exchange room 40 is connected to the upper end of Taper Pipe 20, institute The lower end for stating secondary heat exchange room 40 is connected to the lower end of Taper Pipe 20, the lower end of the secondary heat exchange room 40 and the big end of surge chamber 12 Connection, along with agitating paddle is constantly lifted up, this makes cereal constantly carry out circulating-heating, baking in the inside of casing It is dry;When cereal be oven-dried to a certain degree after, open blow-off valve 131, the cereal of drying is discharged from the lower end of unloading house 13.Its In, tail gas is concentrated from escape pipe 112 and is discharged.
Further, as shown in Fig. 2, the cone angle of the helical blade 32 be α, 8 °≤α≤17 °;The helical blade 32 Cone angle be equal to 20 inner wall of Taper Pipe cone angle.
Further, being fixedly provided with for the Heat Room 11 draws flitch 114 right above 20 upper end of Taper Pipe, described Draw the outside that feed inlet 113 is arranged in flitch 114.
In the above-described embodiments, high-efficiency circulation type energy-saving type grain dryer of the present invention is once dropped in continuous drying Water amplitude is up to 23%;Specific heat consumption is 4.3% ~ 5.1%;Due to the present invention constantly circulating circulation during the drying process, this makes The uniformity of grain-drying is good, and the quality of cereal moisture percentage deviation cereal after 1.1 ~ 1.9%, drying after drying is high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (5)

1. a kind of high-efficiency circulation type energy-saving type grain dryer, including casing, positioned at the agitating paddle of casing internal, feature exists In: the casing includes cylindric Heat Room (11), inverted cone shape surge chamber (12) and cylindric unloading house (13), the Heat Room (11) lower end is connected to the big end of surge chamber (12), and the small end of the surge chamber (12) is connected to the upper end of unloading house (13); The air inlet pipe (111) being connected with Heat Room (11), the Heat Room (11) are provided on the outside of Heat Room (11) lower end The escape pipe (112) being connected with Heat Room (11) is provided on the outside of upper end, be provided at the top of the Heat Room (11) into Material mouth (113);The outer cover of the agitating paddle is equipped with Taper Pipe (20), and the agitating paddle includes agitating shaft (31) and is mounted on stirring The external helical blade (32) of axis (31), the lead of the helical blade (32) are continuously reduced from bottom to top, the helical blade (32) gap is provided between the inner wall of periphery and Taper Pipe (20);The outer wall of the Taper Pipe (20) and the inner wall of Heat Room (11) Between be provided with gap.
2. a kind of high-efficiency circulation type energy-saving type grain dryer according to claim 1, it is characterised in that: the Taper Pipe (20) region between the inner wall of outer wall and Heat Room (11) is secondary heat exchange room (40), the secondary heat exchange room (40) it is upper End is connected to the upper end of Taper Pipe (20), and the lower end of the secondary heat exchange room (40) is connected to the lower end of Taper Pipe (20), described secondary The lower end of Heat Room (40) is connected to the big end of surge chamber (12), and the inner wall of the secondary heat exchange room (40) is interleaved and installed with downwards Inclined oblique heat exchanger plates (30).
3. a kind of high-efficiency circulation type energy-saving type grain dryer according to claim 1, it is characterised in that: the unloading house (13) upper end is equipped with blow-off valve (131).
4. a kind of high-efficiency circulation type energy-saving type grain dryer according to claim 1, it is characterised in that: the helical-blade The cone angle of piece (32) be α, 8 °≤α≤17 °;The cone angle of the helical blade (32) is equal to the cone angle of Taper Pipe (20) inner wall.
5. a kind of high-efficiency circulation type energy-saving type grain dryer according to claim 1, it is characterised in that: the Heat Room (11) be fixedly provided with drawing flitch (114) right above Taper Pipe (20) upper end, it is described to draw flitch (114) setting and feeding The outside of mouth (113).
CN201910127380.8A 2019-02-20 2019-02-20 A kind of high-efficiency circulation type energy-saving type grain dryer Pending CN109744313A (en)

Priority Applications (1)

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CN201910127380.8A CN109744313A (en) 2019-02-20 2019-02-20 A kind of high-efficiency circulation type energy-saving type grain dryer

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CN201910127380.8A CN109744313A (en) 2019-02-20 2019-02-20 A kind of high-efficiency circulation type energy-saving type grain dryer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112212634A (en) * 2020-10-29 2021-01-12 爱可道生物科技有限公司 Combined type artichoke buds production dehydration drying equipment
CN112629198A (en) * 2020-12-17 2021-04-09 郭小林 Novel biological chemical industry granule dehumidification equipment in biological field

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2432991Y (en) * 2000-09-04 2001-06-06 天津理工学院 Screw lifting circulation type grain drying machine
CN203646422U (en) * 2013-11-14 2014-06-18 张建锋 Cereal drying machine
CN105258468A (en) * 2015-11-18 2016-01-20 湖南省金峰机械科技有限公司 Grain drying machine
CN106538677A (en) * 2016-11-11 2017-03-29 江苏天禹农业机械有限公司 A kind of new and effective heated air circulation type grain drying machine
CN108426443A (en) * 2018-06-12 2018-08-21 廖伟华 A kind of grain fast-drying device
CN208205740U (en) * 2018-03-19 2018-12-07 开封市汴丰农业机械有限公司 A kind of circulating grain drying device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2432991Y (en) * 2000-09-04 2001-06-06 天津理工学院 Screw lifting circulation type grain drying machine
CN203646422U (en) * 2013-11-14 2014-06-18 张建锋 Cereal drying machine
CN105258468A (en) * 2015-11-18 2016-01-20 湖南省金峰机械科技有限公司 Grain drying machine
CN106538677A (en) * 2016-11-11 2017-03-29 江苏天禹农业机械有限公司 A kind of new and effective heated air circulation type grain drying machine
CN208205740U (en) * 2018-03-19 2018-12-07 开封市汴丰农业机械有限公司 A kind of circulating grain drying device
CN108426443A (en) * 2018-06-12 2018-08-21 廖伟华 A kind of grain fast-drying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112212634A (en) * 2020-10-29 2021-01-12 爱可道生物科技有限公司 Combined type artichoke buds production dehydration drying equipment
CN112629198A (en) * 2020-12-17 2021-04-09 郭小林 Novel biological chemical industry granule dehumidification equipment in biological field

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