CN211012326U

CN211012326U - Movable rice drying equipment based on microwave and hot air combined drying process

Info

Publication number: CN211012326U
Application number: CN201921307364.9U
Authority: CN
Inventors: 周帆; 胡兆吉; 洪聪结; 刘康; 邵星宇
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-07-14
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to the technical field of grain drying machines, in particular to a movable rice drying device based on a microwave and hot air combined drying process, which comprises a microwave drying section, a hot air drying section and a spiral lifting section, wherein the microwave drying section and the hot air drying section are arranged from top to bottom and are communicated from top to bottom; and a discharge opening is arranged below the side wall of the spiral lifting section. The utility model discloses a high efficiency, the high-quality drying of corn, the energy consumption also greatly reduced, energy-conserving effect is showing.

Description

Movable rice drying equipment based on microwave and hot air combined drying process

Technical Field

The utility model relates to a grain drying-machine technical field especially relates to a portable corn drying equipment based on microwave hot-blast combination drying technology.

Background

The State administration releases an implementation outline of 'Chinese manufacturing 2025' in 2015, 5-19 days, agricultural machinery equipment is listed as 10 key fields of future key development, the capability of information collection, intelligent decision and accurate operation of the agricultural machinery equipment needs to be improved in key points, and an informatization integral solution for agricultural production is formed.

The development of the small grain drying equipment is still in the starting stage, due to the lack of the technology, enterprises for producing the small grain drying equipment in China are only dozens of enterprises at present, and the defects of high energy consumption, low energy utilization rate, non-uniform drying effect, heaviness, inconvenience in movement and the like generally exist, so that the market development is not advanced.

The rice drying technology is vigorously developed, so that the time consumed in the grain drying process can be greatly shortened, the grain storage is not limited by weather, fresh grains can be listed in advance, and the economic benefit is improved; but also can improve the quality of the grains, prolong the storage time and prevent the grains from going bad, and reduce the loss of the grains in the storage process to a great extent. The microwave and hot air combined drying process can greatly improve the drying quality and efficiency of the paddy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides a portable corn drying equipment based on microwave hot-blast combination drying technology, has realized high-efficient, the high-quality drying of corn, and the energy consumption also greatly reduced, and energy-conserving effect is showing.

In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:

the utility model discloses a portable corn drying equipment based on microwave hot-blast combination drying technology, including microwave drying section, hot air drying section and spiral lifting section, microwave drying section and hot air drying section top-down set up and communicate from top to bottom, and one side of this corn drying device is equipped with the feed inlet of corn, the feed inlet communicates with the head end of the material conveyer trough that is located the hot air drying section below, material conveyer trough middle part with the hot air drying section below communicates, the bottom of spiral lifting section communicates with the end of material conveyer trough, the upper portion of spiral lifting section communicates with microwave drying section upper portion through the elephant trunk; a discharge opening is formed below the side wall of the spiral lifting section; corn gets into the back from the feed inlet and carries to the spiral through the material conveyer trough and promote the back and get into microwave drying section, hot air drying section through the elephant trunk in proper order after the section promotes, then falls into the material conveyer trough, so the dry setting humidity of circulation is given repeatedly, opens the discharge opening and unloads out corn.

The microwave drying section comprises a microwave drying cavity, a first feed inlet, a first discharge outlet and a microwave emission source, wherein the first feed inlet and the first discharge outlet are respectively arranged at the upper end and the lower end of the microwave drying cavity; the hot air drying section comprises a hot air drying cavity, a second feeding hole and a second discharging hole which are respectively arranged at the upper end and the lower end of the hot air drying section, and an air heater arranged at the bottom of the hot air drying section.

At least one baffle plate is fixed on the inner wall of the hot air drying cavity, the baffle plate is of a conical structure, through holes for rice to pass through are uniformly distributed on the surface of the baffle plate, an air distribution plate is arranged below the baffle plate, the air distribution plate is of a conical structure, air holes are uniformly distributed on the air distribution plate, and a connecting pipe communicated with the material conveying groove is arranged in the middle of the air distribution plate.

The hot air drying cavity is characterized in that a first flow baffle, a second flow baffle and a third flow baffle are arranged on the inner wall of the hot air drying cavity from bottom to bottom, the width of the longitudinal section of the first flow baffle and the width of the longitudinal section of the third flow baffle are gradually increased from top to bottom, and the width of the longitudinal section of the second flow baffle is gradually reduced from top to bottom.

The lower part of the side wall of the hot air drying section is provided with an observation port, and the upper part of the side wall of the hot air drying section is provided with at least one hot air section moisture discharging port.

The microwave drying cavity is formed by the combination of upper portion cylindrical structure cavity and lower part toper cavity, first discharge gate sets up in the lower extreme of toper cavity, be equipped with the discharge gate slide valve on the first discharge gate, the discharge gate slide valve is including being fixed in the flashboard support that is square frame shape structure on the first discharge gate outer wall, be equipped with on the inner wall of flashboard support and be used for cooperating gliding spout with the flashboard, be equipped with the flashboard hole that is used for the flashboard to pass through on the first discharge gate, flashboard support cross section length is greater than the external diameter of first discharge gate.

The top of the microwave drying cavity is provided with at least one microwave band moisture discharging port, and the side wall of the microwave drying cavity is provided with a second observation port.

The spiral promotes section including being spiral promotion auger, motor, it includes the main shaft, establishes the flight on the main shaft outer wall to promote the auger, the bottom of main shaft with the output of motor links to each other, the motor is connected with frequency conversion equipment.

And a humidity monitoring module and a temperature and humidity monitoring module are arranged on the discharge opening.

The beneficial effects of the utility model reside in that:

1. the utility model adopts the microwave and hot air fluidization internal circulation combined drying process, integrates the advantages of two drying modes, and realizes the high-efficiency and high-quality drying of the rice; the energy consumption of the equipment adopting the combined drying process is greatly reduced, and the energy consumption can be reduced by 62.2 percent compared with the similar equipment through calculation, so the energy-saving effect is obvious;

2. the utility model adopts a batch drying and movable working mode, improves the working efficiency of the rice drying equipment, and realizes the design target of flexible and efficient operation across areas;

3. the utility model discloses integrated temperature and humidity detection module realizes the real-time supervision of the interior corn dry state of equipment, has avoided the corn to be overheated and then the decline problem that leads to because of excessive drying.

Drawings

FIG. 1 is a schematic view of the structure of the novel body of the present invention;

FIG. 2 is a schematic structural view of the microwave drying section of the present invention;

FIG. 3 is a schematic structural view of the hot air drying section of the present invention;

fig. 4 is a schematic structural view of the spiral lifting section of the present invention;

FIG. 5 is a schematic view of the top structure of the cavity of the microwave drying section of the present invention;

FIG. 6 is a schematic view of the gate valve of the discharge port of the present invention;

FIG. 7 is a schematic view of the baffle structure of the present invention;

FIG. 8 is a schematic diagram of the structure of the wind distribution plate of the present invention;

fig. 9 is a schematic view of the lifting auger structure of the present invention.

In the figure, 1 microwave drying section, 101 microwave drying cavity, 102 first inlet, 103 first outlet, 104 microwave emission source, 105 outlet gate valve, 106 gate support, 107 gate, 108 sliding groove, 109 microwave section moisture discharging opening, 110 second viewing opening, 2 hot air drying section, 201 hot air drying cavity, 202 hot air blower, 203 baffle plate, 204 air distribution plate, 205 air distribution hole, 206 connecting pipe, 207 through hole, 208 hot air section moisture discharging opening, 209 viewing opening, 3 spiral lifting section, 301 lifting auger, 302 motor, 303 main shaft, 304 helical blade, 305 elephant trunk, 306 bevel gear box, 4 material conveying groove, 5 inlet, 6 discharge opening.

Detailed Description

The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. In addition, the terms "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as the scope of the present invention

The invention will be further described with reference to the following figures and examples:

see fig. 1-9.

The utility model discloses a portable corn drying equipment based on microwave hot-blast combination drying technology, including microwave drying section 1, hot-blast drying section 2 and spiral promotion section 3, microwave drying section 1 sets up and communicates from top to bottom with hot-blast drying section 2, and one side of this corn drying device is equipped with the feed inlet 5 of corn, feed inlet 5 communicates with the head end of material conveyer trough 4 that is located below hot-blast drying section 2, material conveyer trough 4 middle part with hot-blast drying section 2 below communicates, the bottom of spiral promotion section 3 communicates with the end of material conveyer trough 4, the upper portion of spiral promotion section 3 communicates with microwave drying section 1 upper portion through elephant trunk 305; a discharge opening 6 is arranged below the side wall of the spiral lifting section 3; the rice enters from the feeding hole 5, is conveyed to the spiral lifting section 3 through the material conveying groove 4, is lifted, sequentially enters the microwave drying section 1 and the hot air drying section 2 through the chute 305, then falls into the material conveying groove 4, is repeatedly dried to a set humidity in a circulating mode, and is discharged through the discharging hole 6; the energy consumption of the equipment adopting the combined drying process is greatly reduced, and the energy consumption can be reduced by 62.2 percent compared with the similar equipment through calculation, and the energy-saving effect is obvious.

The working process is as follows: when the rice drying device starts to work, the hot air blower 202 of the hot air drying section 2 and the lifting auger 301 of the spiral lifting section 3 are started, wet rice is poured into the feeding hole 5, the wet rice enters the bottom of the lifting auger 301 through the material conveying groove 1 communicated with the wet rice, the rice is lifted to the top of the lifting auger 301 through the spiral sheet 304 of the lifting auger 301, the rice slides into the inner cavity at the top of the microwave drying section 1 through the slide pipe 305, the rice starts to accumulate gradually, the microwave generator 7 of the microwave drying section is started at the moment, the microwave immediately fills the whole microwave drying cavity 101, after the rice accumulates a certain amount (about the space of the microwave drying cavity 1/3), the gate valve 105 at the lower part of the microwave drying section 1 is started, the rice falls gradually along the conical cavity under the action of gravity, the rice enters the hot air drying cavity 201 of the hot air drying section 2 from the first discharging hole 103, and the rice sequentially passes through, Second, the third flow plate falls gradually, and move gradually to material conveyer trough 4 along cavity bottom grid plate 204, get into the circulation, corn constantly carries out above-mentioned circulation between microwave drying section 1 and hot air drying section 2, through installing the temperature in spiral lifting section 3 discharge opening 6 department, the degree of drying of humidity real-time supervision display screen judgement corn, corn initial moisture strict control is about 14%, the corn is dry to the moisture content about 14%, the discharge opening valve is opened, make the reversal of spiral main shaft 40 can discharge dry corn by discharge opening 6 through inverter control motor 302.

The microwave drying section 1 comprises a microwave drying cavity 101, a first feeding hole 102 and a first discharging hole 103 which are respectively arranged at the upper end and the lower end of the microwave drying cavity 101, and a microwave emitting source 104 arranged outside the microwave drying cavity 101; the hot air drying section 2 comprises a hot air drying cavity 201, a second feeding hole and a second discharging hole which are respectively arranged at the upper end and the lower end of the hot air drying section 2, and an air heater 202 arranged at the bottom of the hot air drying section.

The inner wall of the hot air drying cavity 201 is fixed with at least one baffle plate 203, the baffle plate 203 is of a conical structure, through holes 207 for rice to pass through are uniformly distributed on the surface of the baffle plate 203, an air distribution plate 204 is arranged below the baffle plate 203, the air distribution plate 204 is of a conical structure, air holes 205 are uniformly distributed on the air distribution plate, a connecting pipe 206 communicated with the material conveying groove 4 is arranged in the middle of the baffle plate, the heat transfer effect is improved by arranging the baffle plate 203, passing rice is fully heated, the hot air blown out by the air heater 202 is more uniformly distributed by arranging the air distribution plate 204 and arranging the air holes 205 on the air distribution plate, the rice is heated more uniformly, and the moisture content of the rice is ensured to be more uniform when the rice is unloaded.

In the preferred embodiment, the inner wall of the hot air drying chamber 201 is provided with a first, a second and a third baffle plates from bottom to bottom, the width of the longitudinal section of the first and the third baffle plates gradually increases from top to bottom, the width of the longitudinal section of the second baffle plate gradually decreases from top to bottom, the paddy is fluidized under the combined action of gravity and hot air and slowly flows through the first, the second and the third baffle plates in turn, because the baffle plate 203 is in a conical structure, the first and the third baffle plates in the embodiment are in a state of high middle and low edge, the second baffle plate is relatively set in a state of low middle and high edge, when the paddy passes through the first baffle plate, the paddy gradually disperses from the middle to the edge due to the action of gravity, the hot air and the first baffle plate, when the paddy passes through the second baffle plate, the second baffle plate gradually gathers to the middle, and when the third baffle plate, the second baffle plate gradually disperses from the middle to the edge, thus, the rice can be heated more uniformly without being gathered together and heated unevenly, the drying speed can be faster, and simultaneously, the air distribution plate 204 is also in a conical structure with a low middle edge and a high edge, so that the rice is heated more uniformly by matching with the air distribution plate 204.

The lateral wall lower part of hot air drying section 2 is equipped with viewing aperture 209, and its lateral wall upper portion is equipped with at least one hot air section hydrofuge mouth 208, and the humid air when passing through hot-blast heating through hot air section hydrofuge mouth 208 is discharged, through the better dry condition of observation wet corn in hot air drying section 2 of viewing aperture 209 user of being convenient for.

The microwave drying cavity 101 is formed by combining an upper cylindrical structure cavity and a lower funnel-shaped cavity, the first discharge port 103 is arranged at the lower end of the conical cavity, a discharge port gate valve 105 is arranged on the first discharge port 103, the discharge port gate valve 105 comprises a gate plate support 106 which is fixed on the outer wall of the first discharge port 103 and is of a square frame structure, a sliding chute 108 which is matched with the gate plate 107 to slide is arranged on the inner wall of the gate plate support 106, a gate plate hole for the gate plate 107 to pass through is arranged on the first discharge port 103, the cross section length of the gate plate support 106 is larger than the outer diameter of the first discharge port 103, the gate plate 105 can enter the hot air drying section 2 after accumulating a certain amount of paddy (about 1/3 space of the microwave drying cavity), the hot air heater 202 of the hot air drying section 2 is prevented from being opened, the energy consumption is reduced.

The top of microwave drying cavity 101 is equipped with at least one microwave section hydrofuge mouth 109, be equipped with second viewing aperture 110 on the lateral wall of microwave drying cavity 101, wet air when passing through microwave heating through microwave section hydrofuge mouth 109 is discharged, through the better dry condition of observing wet corn in microwave drying section 1 of second viewing aperture 110 person of facilitating the use, in this embodiment, microwave section hydrofuge mouth 109 is installed on the top cap 111 at microwave drying cavity 101 top, top cap 111 passes through the mounting hole and installs in microwave drying cavity 110 top, evenly distributed has four microwave section hydrofuge mouths 109 on this embodiment top cap 111.

The spiral lifting section 3 comprises a spiral lifting auger 301 and a motor 302, the lifting auger 301 comprises a main shaft 303 and a spiral piece 304 arranged on the outer wall of the main shaft 303, the bottom end of the main shaft 303 is connected with the output end of the motor 302, the motor 302 is connected with a frequency conversion device, preferably, the lifting auger 301 is that the spiral piece 304 is right-handed, when the rice needs to be discharged, the rotating direction of the motor 302 is changed through the frequency conversion device, so that the main shaft 303 is reversed, the spiral piece 304 is driven to be reversed, and the dried rice is discharged from the discharge opening 6; in the embodiment, the motor 302 is connected with the main shaft 303 through the bevel gear box 306 for the reason of topography.

Be equipped with humidity monitoring module and humiture monitoring module on discharge opening 6, through installing the temperature, the dry degree of humidity real-time supervision display screen judgement corn in 3 discharge openings of spiral lifting section 6 departments, corn initial moisture strict control is about 14%, and the corn is dry to the moisture content about 14%.

The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims

1. A portable corn drying equipment based on microwave hot-blast combination drying technology which characterized in that: the rice drying device comprises a microwave drying section (1), a hot air drying section (2) and a spiral lifting section (3), wherein the microwave drying section (1) and the hot air drying section (2) are arranged from top to bottom and are communicated up and down, a feed inlet (5) for rice is formed in one side of the rice drying device, the feed inlet (5) is communicated with the head end of a material conveying groove (4) located below the hot air drying section (2), the middle part of the material conveying groove (4) is communicated with the lower part of the hot air drying section (2), the bottom of the spiral lifting section (3) is communicated with the tail end of the material conveying groove (4), and the upper part of the spiral lifting section (3) is communicated with the upper part of the microwave drying section (1) through a chute (305); a discharge opening (6) is arranged below the side wall of the spiral lifting section (3); corn gets into the back from feed inlet (5) and carries to spiral promotion section (3) through material conveyer trough (4) and promotes back and get into microwave drying section (1), hot air drying section (2) in proper order through elephant trunk (305), then falls into material conveyer trough (4), so the circulation is dry to set humidity repeatedly, opens discharge opening (6) and unloads out corn.

2. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 1, wherein: the microwave drying section (1) comprises a microwave drying cavity (101), a first feeding hole (102) and a first discharging hole (103) which are respectively arranged at the upper end and the lower end of the microwave drying cavity (101), and a microwave emitting source (104) arranged outside the microwave drying cavity (101); the hot air drying section (2) comprises a hot air drying cavity (201), a second feeding hole and a second discharging hole which are respectively arranged at the upper end and the lower end of the hot air drying section (2), and an air heater (202) arranged at the bottom of the hot air drying section.

3. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 2, wherein: at least one baffle plate (203) is fixed on the inner wall of the hot air drying cavity (201), the baffle plate (203) is of a conical structure, through holes (207) for rice to pass through are uniformly distributed on the surface of the baffle plate, an air distribution plate (204) is arranged below the baffle plate (203), the air distribution plate (204) is of a conical structure, air holes (205) are uniformly distributed on the air distribution plate, and a connecting pipe (206) communicated with the material conveying groove (4) is arranged in the middle of the air distribution plate.

4. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 3, wherein: the hot air drying device is characterized in that a first baffle plate, a second baffle plate and a third baffle plate are arranged on the inner wall of the hot air drying cavity (201) from bottom to bottom, the longitudinal section width of the first baffle plate and the longitudinal section width of the third baffle plate are gradually increased from top to bottom, and the longitudinal section width of the second baffle plate is gradually decreased from top to bottom.

5. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 4, wherein: the lower part of the side wall of the hot air drying section (2) is provided with an observation port (209), and the upper part of the side wall is provided with at least one hot air section moisture discharging port (208).

6. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 5, wherein: microwave drying cavity (101) are formed by upper portion cylindrical structure cavity and lower part toper cavity combination, first discharge gate (103) set up in the lower extreme of toper cavity, be equipped with discharge gate slide valve (105) on first discharge gate (103), discharge gate slide valve (105) are flashboard support (106) that are square frame shape structure including being fixed in on first discharge gate (103) outer wall, be equipped with on the inner wall of flashboard support (106) and be used for cooperating gliding spout (108) with flashboard (107), be equipped with the flashboard hole that is used for flashboard (107) to pass through on first discharge gate (103), flashboard support (106) cross section length is greater than the external diameter of first discharge gate (103).

7. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 6, wherein: the top of the microwave drying cavity (101) is provided with at least one microwave band moisture discharging port (109), and the side wall of the microwave drying cavity (101) is provided with a second observation port (110).

8. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 7, wherein: spiral promotes section (3) including being spiral lifting auger (301), motor (302), lifting auger (301) includes main shaft (303), establishes flight (304) on main shaft (303) outer wall, the bottom of main shaft (303) with the output of motor (302) links to each other, motor (302) are connected with frequency conversion equipment.

9. The movable rice drying equipment based on the microwave and hot air combined drying process as claimed in claim 8, wherein: and a humidity monitoring module and a temperature and humidity monitoring module are arranged on the discharge opening (6).