CN110613152A - Low-temperature mixed-flow circulating peanut dryer and drying method thereof - Google Patents
Low-temperature mixed-flow circulating peanut dryer and drying method thereof Download PDFInfo
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- CN110613152A CN110613152A CN201910865078.2A CN201910865078A CN110613152A CN 110613152 A CN110613152 A CN 110613152A CN 201910865078 A CN201910865078 A CN 201910865078A CN 110613152 A CN110613152 A CN 110613152A
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- 241001553178 Arachis glabrata Species 0.000 title claims abstract description 107
- 235000020232 peanut Nutrition 0.000 title claims abstract description 107
- 235000017060 Arachis glabrata Nutrition 0.000 title claims abstract description 95
- 235000010777 Arachis hypogaea Nutrition 0.000 title claims abstract description 95
- 235000018262 Arachis monticola Nutrition 0.000 title claims abstract description 95
- 238000001035 drying Methods 0.000 title claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 142
- 239000000463 material Substances 0.000 claims abstract description 113
- 238000003860 storage Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims description 108
- 239000012535 impurity Substances 0.000 claims description 62
- 238000007599 discharging Methods 0.000 claims description 35
- 238000012216 screening Methods 0.000 claims description 20
- 238000007667 floating Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/083—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting with stirring, vibrating or grinding devices
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/12—Auxiliary devices for roasting machines
- A23N12/125—Accessories or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a low-temperature mixed flow circulation peanut dryer and a drying method thereof in the technical field of agricultural machinery, and the low-temperature mixed flow circulation peanut dryer comprises a feeding mechanism, a material circulation conveying system, a main body bin and a material drying system, wherein the material circulation conveying system comprises a base assembly, a lifting mechanism, a discharge pipe, an upper conveyor, a grain storage chamber and a drying chamber which are sequentially arranged; when drying, heat supply component supplies heat to the air inlet duct, and centrifugal fan can discharge the damp and hot air current in the drying chamber, can satisfy the dry demand of quick, high-efficient, even, low consumption drying well, and accord with the characteristic of peanut material.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a peanut drying technology.
Background
In recent years, with the rapid advance of large-scale planting and mechanized harvesting technologies, peanut harvesting tends to be concentrated day by day, the original field airing facilities and labor resources cannot meet the requirement of rapidly drying peanuts after delivery, and medium and large-sized drying equipment suitable for rapidly drying peanuts in a production place is not available in domestic markets, so that the mixed flow circulation peanut dryer which is suitable for rapidly, efficiently, uniformly and low-consumption drying of peanuts in the production place and meets the characteristics of peanut materials is required to be provided.
Disclosure of Invention
The invention aims to provide a low-temperature mixed flow circulation peanut dryer and a drying method thereof, which can well meet the requirements of quickly, efficiently, uniformly and low-consumption drying of peanut materials and meet the characteristics of the peanut materials.
The purpose of the invention is realized as follows: a low temperature mixed flow circulation peanut dryer comprising:
the main body bin is provided with a material drying system, is in a rectangular cubic structure and is provided with a vertical middle cavity;
the material circulating conveying system is arranged on the side part of the main body bin, conveys peanut materials from bottom to top and conveys the peanut materials into a central cavity of the main body bin; and
providing a feeding mechanism for drying peanut materials;
the material circulating conveying system comprises a base assembly which is positioned at the bottom of the main body bin and is directly communicated with a middle cavity of the main body bin, the base assembly conveys materials upwards by a lifting mechanism and is communicated with the upper end of a discharge pipe positioned at the top of the main body bin, the lower end of the discharge pipe is provided with a discharge branch pipe and a drying branch pipe which can be mutually switched, and the central position of the upper part of the main body bin is provided with a feed inlet which is communicated with the middle cavity of the main body bin and is used for receiving peanut materials discharged from the drying branch pipe;
the structure of the material drying system is as follows:
an air inlet duct and an air outlet duct respectively cover the outer sides of two opposite sides of the main body bin, the lower end of the air outlet duct is provided with a centrifugal fan for exhausting air outwards, and an air inlet port of the air inlet duct is provided with a ventilating heat supply component;
the air inlet strip-shaped boxes and the air outlet strip-shaped boxes are arranged in the central cavity of the main body bin at intervals up and down, the air inlet strip-shaped boxes and the air outlet strip-shaped boxes extend horizontally, two ends of each air inlet strip-shaped box and two ends of each air outlet strip-shaped box are fixed on two opposite wall surfaces of the central cavity of the main body bin, and a plurality of air inlet strip-shaped boxes or air outlet strip-shaped boxes are horizontally arranged on each layer;
the cross sections of the air inlet strip-shaped box and the air outlet strip-shaped box are approximately in the shape of an upright isosceles triangle, the lower sides of the air inlet strip-shaped box and the air outlet strip-shaped box are both of an open structure, and a plurality of air holes are formed in the walls of the air inlet strip-shaped box and the air outlet strip-shaped box; the side wall of the air inlet duct is provided with a plurality of air inlets communicated with the central cavity of the main body bin, and the side wall of the air outlet duct is provided with a plurality of air outlets communicated with the central cavity of the main body bin; air inlet bar box one end switch-on air intake, the other end is the blind end, arranging of air-out bar box is opposite with air inlet bar box, and air-out bar box one end and air outlet switch-on.
Further, the base subassembly includes base frame and at least one hopper of installing in the base frame, the hopper opening up and with the central cavity bottom intercommunication sealing connection in main body storehouse, the lower extreme bin outlet of hopper is equipped with grain discharging mechanism, the base subassembly still includes shale shaker transport combined part, drives mechanism and the miscellaneous transport combined part of soil, shale shaker transport combined part is under the lower extreme bin outlet of hopper and is used for accepting the peanut material that falls down from the hopper, it links to each other and is used for ordering about shale shaker transport combined part and vibrates to drive the mechanism and carry the combined part with the shale shaker transport combined part of shaking, the miscellaneous transport combined part of soil is used for receiving, carries the miscellaneous soil that shale shaker transport combined part shaken off.
Furthermore, the discharge branch pipe is communicated with a discharge pipe extending from top to bottom, and the lower port of the discharge pipe is close to the ground.
Further, the hopper is equipped with two, and two hoppers arrange side by side, shale shaker transport combination part includes that one-level vibration conveyor constructs, second grade vibration screen remove native conveying mechanism, one-level vibration conveyor constructs, second grade vibration screen remove under two hoppers of native conveying mechanism branch department, one-level vibration conveyor constructs, second grade vibration screen remove native conveying mechanism slope and arrange, one-level vibration conveyor constructs's the least significant end just removes native conveying belt face of conveying mechanism to second grade vibration screen, second grade vibration screen removes native conveying mechanism's the least significant end just to harmless hoist mechanism lower extreme feeding section, the discharge end of feed mechanism just removes native conveying belt face to second grade vibration screen.
Furthermore, the soil and impurity conveying combined component comprises a primary soil and impurity conveying mechanism and a secondary soil and impurity conveying mechanism for discharging soil and impurities, wherein the primary soil and impurity conveying mechanism is positioned under the secondary vibrating screen soil removing and conveying mechanism, and the discharge end of the primary soil and impurity conveying mechanism is positioned over the conveying belt surface of the secondary soil and impurity conveying mechanism.
Furthermore, an upper cover plate with an airtight function is packaged at the top of the main body bin, the feed inlet is formed in the upper cover plate, and the upper ends of the air inlet duct and the air exhaust duct are sealed by the upper cover plate.
Furthermore, an upper conveyor is installed on the upper side of the upper cover plate, the upper conveyor is a transverse conveying belt mechanism, the lower end opening of the drying lateral branch pipe is opposite to the conveying belt surface of the upper conveyor, and the discharge end of the upper conveyor is located right above the feed inlet.
Furthermore, two edge strip-shaped boxes which are respectively arranged at two ends of each layer are arranged on each layer of air inlet strip-shaped box, the two edge strip-shaped boxes are oppositely arranged, each edge strip-shaped box is of an inclined net plate structure, one end of each edge strip-shaped box is aligned to one air inlet, the other end of each edge strip-shaped box is of a closed structure, each edge strip-shaped box and the wall surface of the central cavity of the main bin form a cavity which is communicated with the air inlets, the lower side of each edge strip-shaped box is of an open structure, and a plurality of air holes are uniformly distributed in the edge strip-shaped boxes.
Further, the middle cavity of the main body bin is composed of a grain storage chamber and a drying chamber, the grain storage chamber and the drying chamber are sequentially arranged from top to bottom and communicated with each other, and the air inlet strip-shaped box and the air outlet strip-shaped box are located in the drying chamber.
A low-temperature mixed flow circulation peanut drying method comprises a feeding stage, a drying stage and a discharging stage in sequence;
the feed stage comprises the following steps:
a1, primarily cleaning and removing impurities from newly harvested peanut materials, and conveying the peanut materials to the conveying belt surface of a secondary vibrating screening and soil removing conveying mechanism through a feeding mechanism;
a2, under the action of vibration, the materials gradually move forward and gradually shake off the floating soil attached to the surface of the peanuts, the floating soil falls to the primary soil and impurity conveying mechanism and is conveyed to the secondary soil and impurity conveying mechanism through the primary soil and impurity conveying mechanism, and the secondary soil and impurity conveying mechanism conveys the soil and impurities to the outside of the dryer;
a3, conveying peanut materials to a feeding section at the lower end of a nondestructive elevator through a secondary vibrating screen soil removal conveying mechanism, then conveying the peanut materials upwards to a discharge pipe through the nondestructive elevator mechanism, falling into an upper conveyor, and conveying the peanut materials to a grain storage chamber through the upper conveyor;
the drying stage comprises the following steps:
b1, after the peanut material is filled in the grain storage chamber and the drying chamber, starting a centrifugal fan and a heat supply component in the material drying system to form a hot air flow which sequentially passes through an air inlet duct, an air inlet strip box, an air outlet and an exhaust duct;
b2, the materials slowly flow out of the two grain discharging mechanisms and fall into a primary vibrating conveying mechanism and a secondary vibrating screening soil removing conveying mechanism, wherein the peanut materials falling into the primary vibrating conveying mechanism are collected into the secondary vibrating screening soil removing conveying mechanism, the materials gradually move forwards under the vibration effect and gradually vibrate the floating soil attached to the surfaces of the peanuts, the floating soil falls into the primary soil and impurity conveying mechanism and is conveyed to the secondary soil and impurity conveying mechanism through the primary soil and impurity conveying mechanism, the soil and impurity conveying mechanism conveys the soil and impurity to the outside of the dryer, the peanut materials are conveyed to the lower end feeding section of a nondestructive lifter through the secondary vibrating screening soil removing conveying mechanism, are lifted and conveyed to a discharging pipe through the nondestructive lifter, fall onto an upper conveyor, and are conveyed to a grain storage chamber through the upper conveyor;
repeating the steps B1 and B2 until the moisture content of the peanuts is reduced to the moisture content standard suitable for storage, and stopping drying;
the discharging stage comprises the following steps:
c1, cooling the peanut materials, and during the specific operation, continuing to start the centrifugal fan and stop the operation of the heat supply component to form a cooling airflow which sequentially passes through the air inlet duct, the air inlet strip box, the air outlet and the exhaust duct;
c2, discharging peanut materials, wherein the materials slowly flow out of the two grain discharging mechanisms, fall into the first-stage vibration conveying mechanism and the second-stage vibration screening soil removal conveying mechanism, the peanut materials falling into the first-stage vibration conveying mechanism are collected to the second-stage vibration screening soil removal conveying mechanism, the peanut materials enter a feeding section at the lower end of the lossless lifting mechanism, the materials enter a discharging pipe after being lifted and conveyed, and the materials gradually fall to the ground after entering the discharging pipe.
The invention has the beneficial effects that:
1) the peanut drying device can uniformly dry peanut materials, hot air flow enters an air inlet from an air inlet duct during drying so as to enter an inner cavity of an air inlet strip-shaped box, hot air flow penetrates out of air holes of the air inlet strip-shaped box to form upward air flow and downward air flow, then the hot air flow enters the inner cavity of an adjacent air outlet strip-shaped box and enters an exhaust duct through an air outlet, and in the process, a plurality of convection type hot air flows which are relatively uniformly distributed are formed in the inner cavity of a drying chamber so as to achieve the effect of uniform drying;
2) the peanut drying device is rapid, efficient and low in consumption in the drying process and accords with the characteristics of peanut materials, when the peanut materials are dried, the peanut materials sequentially pass through the base assembly, the lifting mechanism, the discharge pipe, the upper conveyor, the grain storage chamber and the drying chamber to form a circulating conveying line, and the peanut materials can be dried uninterruptedly, so that the peanut materials can be dried fully, and the drying efficiency is guaranteed;
3) soil impurities contained in the peanut materials can be removed in the drying stage and the feeding stage, and when the peanut materials are dried, the peanut materials are circularly conveyed and repeatedly pass through the base assembly, the combined parts are conveyed by the vibrating screen to convey the peanut materials and drive the peanut materials to vibrate continuously, so that the soil impurities continuously fall down, the soil impurities vibrated down by the combined parts are conveyed by the soil impurities to the outside of the dryer, and the aim of continuously cleaning the peanut materials in the drying process is fulfilled.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view in fig. 1.
Fig. 3 is a perspective view of the base assembly.
Fig. 4 is a schematic view of the internal structure of the base assembly.
Fig. 5 is a left side view in fig. 4.
Fig. 6 is a schematic diagram of the arrangement relationship of the grain storage chamber and the upper conveyor.
Fig. 7 is a schematic view of the drying principle of the present invention.
Fig. 8 is a sectional view taken along line I-I in fig. 7.
FIG. 9 is a schematic view of the arrangement of the single-layer air intake strip boxes.
Fig. 10 is a schematic view of the material falling direction of the discharge tube.
Fig. 11 is a schematic diagram of the relative position of the grain storage chamber and the drying chamber.
Fig. 12 is an enlarged view of a portion a in fig. 8.
Fig. 13 is an enlarged view of a portion B in fig. 9.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-8, a low temperature mixed flow circulation peanut dryer comprises:
the main body bin 9 with the material drying system is in a rectangular cubic structure and is provided with a vertical middle cavity;
the material circulating conveying system is arranged on the side part of the main body bin 9, conveys peanut materials from bottom to top and conveys the peanut materials into a central cavity of the main body bin 9; and
a feeding mechanism 1 for drying peanut materials is provided.
The material circulating conveying system comprises a base assembly 2 which is arranged at the bottom of a main body bin 9 and is directly communicated with a middle cavity of the main body bin 9, materials are conveyed upwards by a lifting mechanism 4 of the base assembly 2 and are communicated with the upper end of a discharge pipe 5 which is arranged at the top of the main body bin 9, a discharge branch pipe 7 and a drying branch pipe 6 which can be mutually switched are arranged at the lower end of the discharge pipe 5, and a feed inlet 903a which is communicated with the middle cavity of the upper portion of the main body bin 9 and is used for receiving peanut materials discharged from the drying branch pipe 6 is formed in the middle position of the upper portion of the main body.
As shown in fig. 10, the material dropping direction switching mechanism 8 is installed on the discharging pipe 5, and is equivalent to a switching valve for switching whether the material is dropped to the discharging branch pipe 7 or the drying branch pipe 6, the arrangement of the material dropping direction switching mechanism 8 is already common knowledge, in this embodiment, the material dropping direction switching mechanism 8 includes a guide plate 801, and further includes a discharging rope 802 and a locking rope 803 connected to the guide plate 801; during drying, the discharging rope 802 is pulled, so that the guide plate 801 closes the discharging branch pipe 7 and simultaneously opens the drying branch pipe 6, and peanut materials can fall onto the conveyor belt surface of the upper conveyor 10; when the drying is finished and the discharging is needed, the locking rope 803 is pulled, so that the guide plate 801 closes the drying branched pipe 6 and simultaneously opens the discharging branched pipe 7, the peanut materials slide into the discharging pipe 16, and the discharging is finished.
As shown in fig. 7, 8, 9, 12 and 13, the structure of the material drying system is as follows:
an air inlet duct 905 and an air outlet duct 908 which respectively cover the outer sides of two opposite surfaces of the main body bin 9, wherein the lower end of the air outlet duct 908 is provided with a centrifugal fan 15 which discharges air outwards, and an air inlet port of the air inlet duct 905 is provided with a ventilating heat supply component 3;
a plurality of layers of air inlet strip-shaped boxes 11 and a plurality of layers of air outlet strip-shaped boxes 13 are arranged in the central cavity of the main body bin 9 at intervals up and down, the air inlet strip-shaped boxes 11 and the air outlet strip-shaped boxes 13 extend horizontally, two ends of each of the air inlet strip-shaped boxes 11 and the air outlet strip-shaped boxes 13 are respectively fixed on two opposite wall surfaces of the central cavity of the main body bin 9, and a plurality of air inlet strip-shaped boxes 11 or air outlet strip-shaped boxes 13 are horizontally arranged on each layer;
the heating unit 3, like an air conditioner, can heat in the drying stage, can stop heating in the cooling stage, and can supply fresh air from the outside to the air inlet duct 905.
The cross-sectional shapes of the air inlet strip-shaped box 11 and the air outlet strip-shaped box 13 are approximately isosceles triangles which are arranged right at the bottom, the lower sides of the air inlet strip-shaped box 11 and the air outlet strip-shaped box 13 are both of an open structure, and a plurality of air holes 14 are formed in the walls of the air inlet strip-shaped box 11 and the air outlet strip-shaped box 13; the side wall of the air inlet duct 905 is provided with a plurality of air inlets 906 communicated with the central cavity of the main body bin 9, and the side wall of the air outlet duct 908 is provided with a plurality of air outlets 907 communicated with the central cavity of the main body bin 9; one end of the air inlet strip-shaped box 13 is communicated with the air inlet 906, the other end of the air inlet strip-shaped box is a closed end, the arrangement of the air outlet strip-shaped box 11 is opposite to that of the air inlet strip-shaped box 13, and one end of the air outlet strip-shaped box 11 is communicated with the air outlet 907.
Each layer of air inlet strip-shaped box 11 is arranged with two edge strip-shaped boxes 12 respectively arranged at two ends of the layer, the two edge strip-shaped boxes 12 are oppositely arranged, each edge strip-shaped box 12 is of an inclined net plate structure, one end of each edge strip-shaped box is right opposite to one air inlet 906, the other end of each edge strip-shaped box 12 is of a closed structure, each edge strip-shaped box 12 and the wall surface of the central cavity of the main body bin 9 form a cavity communicated with the air inlets 906, the lower side of each cavity is of an open structure, and a plurality of air holes 14 are uniformly distributed in each edge strip-shaped box 12.
As shown in fig. 11, the middle cavity of the main body 9 is composed of a grain storage chamber 901 and a drying chamber 902, the grain storage chamber 901 and the drying chamber 902 are sequentially arranged from top to bottom and communicated with each other, wherein the air inlet strip-shaped box 11 and the air outlet strip-shaped box 13 are located in the drying chamber 902.
During drying, hot air flow enters the air inlet 906 from the air inlet duct 905 and then enters the inner cavity of the air inlet strip-shaped box 11, hot air flow penetrates through the air holes 14 of the air inlet strip-shaped box 11 to form upward air flow and downward air flow, then the hot air flow enters the inner cavity of the adjacent air outlet strip-shaped box 13 and enters the exhaust duct 908 through the air outlet 907, and in the process, a plurality of convection type hot air flows which are relatively uniformly distributed are formed in the inner cavity of the drying chamber 902, so that the uniform drying effect is achieved.
As shown in fig. 3, 4 and 5, the base assembly 2 includes a base frame 201 and two hoppers 202 installed on the base frame 201, the hoppers 202 have openings facing upward and are connected with the bottom of the drying bin 902 in a sealing manner, a grain discharging mechanism 203 is arranged at a discharge outlet at the lower end of the hoppers 202, the base assembly 2 further includes a vibrating screen conveying combined component, a vibration driving mechanism 206 and a soil and impurity conveying combined component, the vibrating screen conveying combined component is located under the discharge outlet at the lower end of the hoppers 202 and is used for receiving peanut materials falling from the hoppers 202, the vibration driving mechanism 206 is connected with the vibrating screen conveying combined component and is used for driving the vibrating screen conveying combined component to vibrate, and the soil and impurity conveying combined component is used for receiving and conveying soil and impurities shaken off by the vibrating screen conveying combined component.
As shown in fig. 2 and 10, the branch pipe 7 is connected to a discharge pipe 16 extending from top to bottom, and a lower end opening of the discharge pipe 16 is close to the ground.
Two hoppers 202 are arranged side by side, the vibrating screen conveying combined component comprises a first-stage vibrating conveying mechanism 204, a second-stage vibrating screen soil removal conveying mechanism 205, the first-stage vibrating conveying mechanism 204 and the second-stage vibrating screen soil removal conveying mechanism 205 are respectively arranged under the two hoppers 202, the first-stage vibrating conveying mechanism 204 and the second-stage vibrating screen soil removal conveying mechanism 205 are obliquely arranged, the lowest end of the first-stage vibrating conveying mechanism 204 is just opposite to the conveyor belt surface of the second-stage vibrating screen soil removal conveying mechanism 205, the lowest end of the second-stage vibrating screen soil removal conveying mechanism 205 is just opposite to the lower end feeding section of the lossless lifting mechanism 4, and the discharging end of the feeding mechanism 1 is just opposite to the conveyor belt surface of the second-stage vibrating screen soil removal.
The soil and impurity conveying combined component comprises a primary soil and impurity conveying mechanism 207 and a secondary soil and impurity conveying mechanism 208 for discharging soil and impurities, wherein the primary soil and impurity conveying mechanism 207 is positioned under the secondary vibrating screen soil removing conveying mechanism 205, and the discharge end of the primary soil and impurity conveying mechanism 207 is positioned above the conveying belt surface of the secondary soil and impurity conveying mechanism 208.
As shown in fig. 1 and 6, an upper cover plate 903 playing a role of air tightness is packaged at the top of the main body bin 9, a feed inlet 903a is arranged on the upper cover plate 903, the upper ends of the air inlet duct 905 and the air exhaust duct 908 are sealed by the upper cover plate 903, and a fence is configured on the upper cover plate 903 according to project requirements to prevent an operator from falling.
A support frame 904 for supporting the upper cover plate 903 is fixed on the inner wall of the grain storage chamber 901 to form a sufficient support function for the upper cover plate 903.
An upper conveyor 10 is mounted on the upper side of the upper cover plate 903, the upper conveyor 10 is a horizontal conveyor belt mechanism, the lower port of the drying lateral pipe 6 is opposite to the conveyor belt surface of the upper conveyor 10, and the discharge end of the upper conveyor 10 is positioned right above the feed port 903 a.
With reference to fig. 1-13, the peanut drying method of the present embodiment includes a feeding stage, a drying stage, and a discharging stage in sequence.
The feed stage comprises the following steps:
a1, after primarily cleaning and removing impurities of newly harvested peanut materials, conveying the peanut materials to the conveying belt surface of the secondary vibrating screening and soil removing conveying mechanism 205 through the feeding mechanism 1;
a2, under the action of vibration, the materials gradually move forwards and gradually vibrate the floating soil attached to the surfaces of the peanuts, the floating soil falls to the primary soil and impurity conveying mechanism 207 and is conveyed to the secondary soil and impurity conveying mechanism 208 through the primary soil and impurity conveying mechanism 207, and the secondary soil and impurity conveying mechanism 208 conveys the soil and impurities to the outside of the dryer;
a3, conveying the peanut materials to a feeding section at the lower end of the lossless elevator 4 through the secondary vibrating screen soil removal conveying mechanism 205, then conveying the peanut materials upwards to the discharge pipe 5 through the lossless elevator 4, falling into the upper conveyor 10, and then conveying the peanut materials to the grain storage chamber 901 through the upper conveyor 10.
The drying stage comprises the following steps:
b1, after the peanut material is filled in the grain storage chamber 901 and the drying chamber 902, starting the centrifugal fan 15 and the heat supply component 3 in the material drying system to form a hot air flow which sequentially passes through the air inlet duct 905, the air inlet 906, the air inlet strip box 11, the air outlet strip box 13, the air outlet 907 and the exhaust duct 908;
b2, the materials slowly flow out of the two grain discharging mechanisms 203 and fall into the first-stage vibration conveying mechanism 204 and the second-stage vibration screening soil removing conveying mechanism 205, wherein the peanut materials falling into the first-stage vibration conveying mechanism 204 are collected into the second-stage vibration screening soil removing conveying mechanism 205, the materials gradually move forward under the vibration action and gradually vibrate the floating soil attached to the surface of the peanuts, the floating soil falls into the first-stage soil and impurity conveying mechanism 207 and is conveyed to the second-stage soil and impurity conveying mechanism 208 through the first-stage soil and impurity conveying mechanism 207, the soil and impurity is conveyed to the outside of the dryer through the second-stage vibration screening soil removing conveying mechanism 208, the peanut materials are conveyed to the lower end feeding section of the lossless hoister 4 through the second-stage vibration screening soil removing conveying mechanism 205, are lifted and conveyed into the discharging pipe 5 through the lossless hoister 4 and fall into the upper conveyer 10, and then the peanut materials are conveyed into the grain storage chamber 901 through the upper conveyer 10;
and repeating the steps B1 and B2 until the moisture content of the peanuts is reduced to the moisture content standard suitable for storage, and stopping drying.
The discharging stage comprises the following steps:
c1, cooling the peanut materials, and during the specific operation, continuing to start the centrifugal fan 15 and stopping the operation of the heat supply component 3 to form a cooling airflow which sequentially passes through the air inlet duct 905, the air inlet 906, the air inlet strip-shaped box 11, the air outlet strip-shaped box 13, the air outlet 907 and the exhaust duct 908;
c2, discharging peanut materials, wherein the materials slowly flow out of the two grain discharging mechanisms 203, fall into the first-stage vibration conveying mechanism 204 and the second-stage vibration screening soil removal conveying mechanism 205, the peanut materials falling into the first-stage vibration conveying mechanism 204 are collected to the second-stage vibration screening soil removal conveying mechanism 205, then enter the feeding section at the lower end of the lossless lifting mechanism 4, enter the materials after lifting and conveying and are discharged to the branch pipe 7, and the peanut materials gradually slide to the ground after entering the discharge pipe 16.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A low temperature mixed flow circulation peanut desiccator which characterized in that includes:
the main body bin (9) is provided with a material drying system, is in a rectangular cubic structure and is provided with a vertical middle cavity;
the material circulating conveying system is arranged on the side part of the main body bin (9), conveys peanut materials from bottom to top and conveys the peanut materials into a central cavity of the main body bin (9); and
a feeding mechanism (1) for drying peanut materials is provided;
the material circulating conveying system comprises a base assembly (2) which is positioned at the bottom of a main body bin (9) and is directly communicated with a middle cavity of the main body bin (9), the base assembly (2) conveys materials upwards through a lifting mechanism (4) and is communicated with the upper end of a discharge pipe (5) positioned at the top of the main body bin (9), a discharge branch pipe (7) and a drying branch pipe (6) which can be mutually switched are arranged at the lower end of the discharge pipe (5), and a feed inlet (903a) which is communicated with the middle cavity of the upper part of the main body bin (9) and is used for receiving peanut materials discharged from the drying branch pipe (6) is formed in the central position of the upper part of the main body bin (9);
the structure of the material drying system is as follows:
an air inlet duct (905) and an air outlet duct (908) which respectively cover the two opposite outer sides of the main body bin (9), wherein the lower end of the air outlet duct (908) is provided with a centrifugal fan (15) which exhausts air outwards, and an air inlet port of the air inlet duct (905) is provided with a ventilating heat supply component (3);
the air inlet strip-shaped boxes (11) and the air outlet strip-shaped boxes (13) are arranged in the central cavity of the main body bin (9) at intervals from top to bottom, the air inlet strip-shaped boxes (11) and the air outlet strip-shaped boxes (13) extend horizontally, two ends of each air inlet strip-shaped box (11) and two ends of each air outlet strip-shaped box (13) are respectively fixed on two opposite wall surfaces of the central cavity of the main body bin (9), and a plurality of air inlet strip-shaped boxes (11) or air outlet strip-shaped boxes (13) are horizontally arranged on each layer;
the cross sections of the air inlet strip-shaped box (11) and the air outlet strip-shaped box (13) are approximately in the shape of an upright isosceles triangle, the lower sides of the air inlet strip-shaped box and the air outlet strip-shaped box are both in an open structure, and a plurality of air holes (14) are formed in the walls of the air inlet strip-shaped box (11) and the air outlet strip-shaped box (13); the side wall of the air inlet duct (905) is provided with a plurality of air inlets (906) communicated with the central cavity of the main body bin (9), and the side wall of the air outlet duct (908) is provided with a plurality of air outlets (907) communicated with the central cavity of the main body bin (9); air inlet bar box (11) one end switch-on air intake (906), the other end is the blind end, the arrangement of air-out bar box (13) is opposite with air inlet bar box (11), and air-out bar box (13) one end and air outlet (907) switch-on.
2. The low temperature mixed flow circulating peanut dryer of claim 1, wherein: the base assembly (2) comprises a base frame (201) and at least one hopper (202) arranged on the base frame (201), the hopper (202) has an upward opening and is communicated with the bottom of the central cavity of the main body bin (9) in a sealing way, a grain discharging mechanism (203) is arranged at a discharge outlet at the lower end of the hopper (202), the base component (2) also comprises a vibrating screen conveying combined component, a vibration driving mechanism (206) and a soil and impurity conveying combined component, the vibrating screen conveying combined component is positioned under a discharge outlet at the lower end of the hopper (202) and is used for receiving peanut materials falling from the hopper (202), the vibration driving mechanism (206) is connected with the vibrating screen conveying combined component and is used for driving the vibrating screen conveying combined component to vibrate, the soil and impurity conveying combined component is used for receiving and conveying soil and impurities shaken off by the vibrating screen conveying combined component.
3. The low temperature mixed flow circulating peanut dryer of claim 1, wherein: the discharge branch pipe (7) is communicated with a discharge pipe (16) extending from top to bottom, and the lower end opening of the discharge pipe (16) is close to the ground.
4. The low temperature mixed flow circulating peanut dryer of claim 2, wherein: the two hoppers (202) are arranged side by side, the vibrating screen conveying combined component comprises a primary vibrating conveying mechanism (204) and a secondary vibrating screen soil removing conveying mechanism (205), the primary vibrating conveying mechanism (204) and the secondary vibrating screening soil-removing conveying mechanism (205) are respectively positioned right below the two hoppers (202), the primary vibrating conveying mechanism (204) and the secondary vibrating screening soil removing conveying mechanism (205) are obliquely arranged, the lowest end of the primary vibrating conveying mechanism (204) is over against the conveying belt surface of the secondary vibrating screening soil removing conveying mechanism (205), the lowest end of the secondary vibrating screen soil removal conveying mechanism (205) is over against the feeding section at the lower end of the nondestructive lifting mechanism (4), the discharge end of the feeding mechanism (1) is over against the conveyor belt surface of the secondary vibrating screen soil removal conveying mechanism (205).
5. The low temperature mixed flow circulating peanut dryer of claim 4, wherein: soil impurity conveying combined part includes one-level soil impurity conveying mechanism (207) and is used for soil impurity exhaust second grade soil impurity conveying mechanism (208), one-level soil impurity conveying mechanism (207) are in second grade vibratory screen and remove soil conveying mechanism (205) under, the discharge end of one-level soil impurity conveying mechanism (207) is in second grade soil impurity conveying mechanism (208) directly over the conveyer belt face.
6. The low temperature mixed flow circulating peanut dryer of claim 1, wherein: main part storehouse (9) top is packaged with upper cover plate (903) that play airtight effect, feed inlet (903a) are seted up on upper cover plate (903), air inlet duct (905), exhaust duct (908) upper end are sealed by upper cover plate (903).
7. The low temperature mixed flow circulating peanut dryer of claim 6, wherein: an upper conveyor (10) is installed on the upper side of the upper cover plate (903), the upper conveyor (10) is a transverse conveying belt mechanism, the lower port of the branch pipe (6) is right opposite to the conveying belt surface of the upper conveyor (10) in a drying mode, and the discharge end of the upper conveyor (10) is located right above the feed port (903 a).
8. The low temperature mixed flow circulating peanut dryer of claim 1, wherein: two edge strip boxes (12) arranged at two ends of the layer respectively are arranged on each layer of air inlet strip box (11), the two edge strip boxes (12) are arranged oppositely, each edge strip box (12) is of an inclined net plate structure, one end of each edge strip box is right opposite to one air inlet (906), the other end of each edge strip box (12) is of a closed structure, each edge strip box (12) and the wall surface of the central cavity of the main body bin (9) form a cavity communicated with the air inlets (906), and the lower side of each edge strip box is of an open structure, and a plurality of air holes (14) are uniformly distributed in each edge strip box (12).
9. The low temperature mixed flow circulating peanut dryer of any one of claims 1-8, wherein: the middle cavity of the main body bin (9) is composed of a grain storage chamber (901) and a drying chamber (902), the grain storage chamber (901) and the drying chamber (902) are sequentially arranged from top to bottom and communicated with each other, wherein the air inlet strip-shaped box (11) and the air outlet strip-shaped box (13) are positioned in the drying chamber (902).
10. A low-temperature mixed flow circulation peanut drying method is characterized by sequentially comprising a feeding stage, a drying stage and a discharging stage;
the feed stage comprises the following steps:
a1, after primarily cleaning and removing impurities of newly harvested peanut materials, conveying the peanut materials to the conveying belt surface of a secondary vibrating screening and soil removing conveying mechanism (205) through a feeding mechanism (1);
a2, under the action of vibration, the materials gradually move forwards and gradually vibrate the floating soil attached to the surfaces of the peanuts, the floating soil falls to the primary soil and impurity conveying mechanism (207) and is conveyed to the secondary soil and impurity conveying mechanism (208) through the primary soil and impurity conveying mechanism (207), and the soil and impurities are conveyed to the outside of the dryer through the secondary soil and impurity conveying mechanism (208);
a3, conveying peanut materials to a lower end feeding section of a nondestructive lifting machine (4) through a secondary vibrating screen soil removal conveying mechanism (205), then conveying the peanut materials upwards to a discharge pipe (5) through the nondestructive lifting mechanism (4), falling into an upper conveyor (10), and then conveying the peanut materials to a grain storage chamber (901) through the upper conveyor (10);
the drying stage comprises the following steps:
b1, after the peanut material is filled in the grain storage chamber (901) and the drying chamber (902), starting a centrifugal fan (15) and a heat supply component (3) in the material drying system to form a hot air flow which sequentially passes through an air inlet duct (905), an air inlet (906), an air inlet strip-shaped box (11), an air outlet strip-shaped box (13), an air outlet (907) and an air outlet duct (908);
b2, slowly flowing out the materials from the two grain discharging mechanisms (203), falling into the first-stage vibration conveying mechanism (204) and the second-stage vibration screening soil removing conveying mechanism (205), wherein the peanut materials falling into the first-stage vibration conveying mechanism (204) are collected into the second-stage vibration screening soil removing conveying mechanism (205), the materials gradually move forwards under the vibration action and gradually vibrate the floating soil attached to the surface of the peanuts, the floating soil falls into the first-stage soil and impurity conveying mechanism (207) and is conveyed to the second-stage soil and impurity conveying mechanism (208) through the first-stage soil and impurity conveying mechanism (207), the soil and impurity are conveyed to the outside of the dryer through the second-stage vibration screening soil removing conveying mechanism (205), the peanut materials are conveyed to the lower end feeding section of the nondestructive elevator (4) and then are lifted and conveyed into the discharging pipe (5) through the nondestructive elevator (4) and fall into the upper entering conveyor (10), then the peanut materials are conveyed into a grain storage chamber (901) by an upper conveyor (10);
repeating the steps B1 and B2 until the moisture content of the peanuts is reduced to the moisture content standard suitable for storage, and stopping drying;
the discharging stage comprises the following steps:
c1, cooling the peanut materials, and during the specific operation, continuing to start the centrifugal fan (15) and stopping the operation of the heat supply component (3) to form a cooling airflow which sequentially passes through the air inlet duct (905), the air inlet (906), the air inlet strip-shaped box (11), the air outlet strip-shaped box (13), the air outlet (907) and the exhaust duct (908);
c2, discharge peanut material, the material slowly flows out from two grain discharging mechanisms (203), fall into one-level conveying mechanism (204) and second grade vibratory screen and remove native conveying mechanism (205), wherein the peanut material that falls into one-level conveying mechanism (204) is collected to second grade vibratory screen and is removed native conveying mechanism (205) back, the peanut material gets into harmless hoist mechanism (4) lower extreme feeding section, get into the material after promoting the transport and unload to lateral pipe (7), slide off to ground gradually after getting into discharging pipe (16).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865078.2A CN110613152B (en) | 2019-09-09 | 2019-09-09 | Low-temperature mixed-flow circulation peanut dryer and drying method thereof |
| PCT/CN2020/110972 WO2021047384A1 (en) | 2019-09-09 | 2020-08-25 | Low-temperature mixed-flow circulating peanut dryer and drying method therefor |
| ZA2020/07856A ZA202007856B (en) | 2019-09-09 | 2020-12-15 | Low-temperature, mixed-flow and circulating peanut drying machine and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910865078.2A CN110613152B (en) | 2019-09-09 | 2019-09-09 | Low-temperature mixed-flow circulation peanut dryer and drying method thereof |
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| CN110613152A true CN110613152A (en) | 2019-12-27 |
| CN110613152B CN110613152B (en) | 2023-12-15 |
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Cited By (2)
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| WO2021047384A1 (en) * | 2019-09-09 | 2021-03-18 | 农业农村部南京农业机械化研究所 | Low-temperature mixed-flow circulating peanut dryer and drying method therefor |
| CN113375436A (en) * | 2021-06-29 | 2021-09-10 | 农业农村部南京农业机械化研究所 | Material circulation desiccator base with no viscous row defeated function |
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| WO2021047384A1 (en) | 2021-03-18 |
| CN110613152B (en) | 2023-12-15 |
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