WO2023020636A2

WO2023020636A2 - Horizontal thermal-circulation grain dryer easy to clean

Info

Publication number: WO2023020636A2
Application number: PCT/CN2022/134281
Authority: WO
Inventors: 张炜; 刘小红
Original assignee: 安徽欧瑞达电器科技有限公司
Priority date: 2022-08-19
Filing date: 2022-11-25
Publication date: 2023-02-23
Also published as: WO2023020636A3; CN115451686B; CN115451686A

Abstract

Disclosed in the present invention is a horizontal thermal-circulation grain dryer easy to clean, the grain dryer comprising a box body, wherein a feed hopper is in communication with the left side of the box body, a screw conveyor driven by an electric motor is rotationally connected to an inner cavity of the box body, and a circular discharge box is in communication with the right side of the box body. The present invention relates to the technical field of grain drying. In the horizontal thermal-circulation grain dryer easy to clean, when a material drum rotates, a material receiving groove facing the interior of the box body is loaded with grain, and when the material drum continues to rotate to face downwards, the grain falls into a discharge channel under the action of gravity. By means of the rotary discharging of the material drum, the interior of the box body can be prevented from being in direct communication with the discharge channel, hot air inside the box body can be effectively prevented from escaping through the discharge channel, and hot and humid air can be prevented from polluting the grain again. In addition, the present invention is more energy-saving, has a higher discharge efficiency, and does not clog. The grain scattered by sieve plates falls from the discharge channel under the action of gravity to complete drying, and recovered hot air is recycled to pre-clean the grain.

Description

An easy-to-clean horizontal heat circulation grain dryer

technical field

The invention relates to the technical field of grain drying, in particular to an easy-to-clean horizontal thermal cycle grain dryer.

Background technique

According to the horizontal grain dryer disclosed in the Chinese patent with the publication number CN203340911U, when in use, the flue gas and hot air work at the same time to remove the humidity of the grain. Grain boards and multiple second agitating grain pushing boards make the grains constantly turn. One end of the roller screen drum feeds grain and the other end feeds grain. The flow-through operation is adopted, so that the temperature of the grains entering the drum screen drum is basically uniform, so as to achieve The purpose of drying grains, but there are the following problems in use:

(1) When unloading, the box body is directly connected to the unloading channel, and a large amount of heat inside escapes, wasting energy;

(2) The contact between the grain and the hot air is not sufficient enough to be effectively dried;

(3) It is troublesome to discharge the hot and humid gas, which is easy to cause secondary pollution.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an easy-to-clean horizontal thermal circulation grain dryer, which solves the above-mentioned problems. To achieve the above object, the present invention is achieved through the following technical solutions:

An easy-to-clean horizontal thermal cycle grain dryer, including a box body, the left side of the box body is connected with a feeding hopper, and the inner cavity of the box body is rotatably connected with a feeding auger driven by a motor. The right side of the box is connected with a circular discharge box, the bottom of the circular discharge box is connected with a discharge channel, and the inner cavity of the circular discharge box is rotatably connected with a material cylinder driven by a power mechanism. The surface of the material cylinder is provided with a receiving groove, the surface of the discharge channel is connected with a suction box, and the connection between the discharge channel and the suction box is cut off by an annular filter, and the discharge channel is located in the center of the ring filter. The inner chamber of the inner cavity is rotatably connected with a drive shaft driven by a motor, the surface of the drive shaft is fixedly connected with a sieve plate, one side of the discharge channel is connected with an air outlet pipe, and the surface of the feed hopper is provided with a blowing chamber. One end of the air outlet pipe communicates with the inner cavity of the blowing chamber, and the air outlet pipe communicates with a water vapor filter box fixed at the bottom of the box body.

As a further solution of the present invention: the back of the feeding hopper is connected with a waste residue box, the connection between the feeding hopper and the waste residue box is separated by a dust filter, and the blowing chamber is flush with the dust filter.

As a further solution of the present invention: the inner diameters of the air blowing chamber and the dust filter of the feed hopper are smaller than the inner diameters of the top end and the bottom end.

As a further solution of the present invention: the caliber of the annular filter screen gradually decreases from top to bottom.

As a further solution of the present invention: the bottom of the box is provided with a hot air assembly, the bottom of the box is provided with a hot air chamber, and the hot air chamber communicates with the air outlet of the hot air assembly, and the connection between the hot air chamber and the box passes through The vibrating filter screen is partitioned, and one side of the vibrating filter screen is fixedly connected with an elastic sealing belt, and one side of the elastic sealing belt is fixedly connected with the inner cavity of the box body.

As a further solution of the present invention: the inner cavity of the hot air chamber is fixedly connected with a jacking cylinder, and the top end of the piston rod of the jacking cylinder abuts against the bottom of the vibrating filter.

As a further solution of the present invention: the top of the box is provided with a slope that gradually rises from left to right, and the top is provided with a circular gas-gathering cavity, and the top of the circular gas-gathering cavity is connected with an exhaust pipe.

As a further solution of the present invention: the surface of the sieve plate is provided with a plurality of comb teeth distributed at intervals, and the sieve plate is provided with a plurality of combs on the surface of the drive shaft, which are distributed in a ring.

When in use, grains are added through the hopper, and the grains are transported to the blowing chamber in the hopper and the dust filter, where the inner diameter of the box is reduced, the grains are blocked and then fall under gravity, and the air outlet pipe is blowing the blowing chamber. The air is supplied to blow the grain, and a part of the water vapor and a large amount of dust in the grain are blown into the dust filter. The grain is blocked by the dust filter, and the water vapor and dust fall into the waste residue box, and then the grain continues to fall into the box. At the same time, the hot air component under the box outputs hot air, transports it into the hot air chamber, and lifts up through the gap of the vibrating filter screen. At this time, the conveying auger lifts the grain while conveying the grain, forming a gap, and the hot air chamber The hot air rises into the gap and is dried. The hot and humid gas, through the setting of the top slope of the box, accumulates in the gap of the top slope of the box, and then enters the circular gas gathering chamber. The air pipeline is used to extract the hot and humid gas through the fan. When in use, the piston rod of the jacking cylinder is slightly stretched up and down, which drives the vibrating filter to swing up and down slightly to prevent the vibrating filter from being blocked. After drying, the material is discharged , when the barrel rotates, the receiving trough facing the box will be loaded with grains, and when it continues to turn downwards, the grains will fall into the discharge channel under the action of gravity, and the drive shaft drives the sieve plate to rotate at this time, and the grains will be beaten At this time, the built-in fan in the exhaust box is used to extract air, and the remaining hot and humid air is extracted through the filtration of the annular filter, and then transported to the water vapor filter box through the air outlet pipe, and the water vapor is filtered and then transported to the blowing chamber. Continue to use, the grains dispersed by the sieve plate fall from the discharge channel under the action of gravity to complete the drying, and the way of rotating the material barrel can prevent the inside of the box from directly communicating with the discharge channel, effectively preventing The internal hot air escapes from the discharge channel to prevent secondary pollution of the grain by the hot and humid gas, and it is more energy-saving, and the discharge is more efficient and will not be blocked.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, when the barrel rotates, the receiving chute facing the box will be loaded with grains, and when it continues to rotate downwards, the grains will fall into the discharge channel under the action of gravity, and the material will be discharged through the rotating type of the barrel , can prevent the inside of the box from being directly connected with the discharge channel, effectively prevent the internal hot air from overflowing from the discharge channel, and prevent the hot and humid gas from polluting the grains again, and it is more energy-saving, the discharge is more efficient, it will not be blocked, and it will be broken up by the sieve plate The final grain falls from the discharge channel under the action of gravity to complete the drying, and the recovered hot air is recycled to pre-clean the grain.

2. In the present invention, the hot air assembly below the box outputs hot air, transports it into the hot air cavity, and lifts it up through the gap of the vibrating filter screen. At this time, the conveying auger lifts the grain while transporting the grain, creating a gap , the hot air in the hot air cavity rises into the gap for drying, the hot air drying effect is better, and the contact area with the grain is larger.

3. In the present invention, the hot and humid gas generated accumulates in the gap on the top slope of the box through the setting of the top slope of the box, and then enters the circular gas-gathering cavity. Gas extraction can quickly discharge hot and humid gas for cleaning.

Description of drawings

Fig. 1 is a structural sectional view of the present invention;

Fig. 2 is a structural front view of the present invention;

Fig. 3 is the structural representation of sieve plate of the present invention;

Fig. 4 is the partial enlarged view of place A in Fig. 1 of the present invention;

Fig. 5 is a partial enlarged view of B in Fig. 1 of the present invention.

The reference signs are: 1. box body; 2. feed hopper; 3. circular discharge box; 4. material cylinder; 5. receiving trough; 6. discharge channel; Filter screen; 9. Drive shaft; 10. Sieve plate; 11. Air outlet pipe; 12. Blowing chamber; 13. Dust filter; 14. Waste box; 15. Hot air component; 16. Water vapor filter box; 17. Hot air chamber; 18. Jacking cylinder; 19. Shaking filter screen; 20. Elastic sealing belt; 21. Feeding auger; 22. Circular gas gathering cavity; 23. Exhaust pipe.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Fig. 1-Fig. 5, this embodiment provides an easy-to-clean horizontal thermal circulation grain dryer, including a box body 1, the left side of the box body 1 is connected with a feed hopper 2, and the inner cavity of the box body 1 Rotatingly connected with a feeding auger 21 driven by a motor, the right side of the box body 1 is connected with a circular discharge box 3, the bottom of the circular discharge box 3 is connected with a discharge channel 6, and the inside of the circular discharge box 3 The cavity is rotatably connected with a material cylinder 4 driven by a power mechanism. The surface of the material cylinder 4 is provided with a material receiving groove 5. The surface of the discharge channel 6 is connected with a suction box 7. The connection between the discharge channel 6 and the suction box 7 is passed through an annular filter. The net 8 is partitioned, and the inner cavity of the discharge channel 6 located in the center of the annular filter screen 8 is rotatably connected with a drive shaft 9 driven by a motor. Pipeline 11, the surface of the feed hopper 2 is provided with a blowing chamber 12, one end of the air outlet pipe 11 communicates with the inner cavity of the blowing chamber 12, the air outlet pipe 11 communicates with the water vapor filter box 16 fixed at the bottom of the box body 1, and passes through the sieve plate 10 The broken grains fall from the discharge channel 6 under the action of gravity to complete the drying, and the rotating discharge method of the material cylinder 4 can prevent the inside of the box 1 from directly communicating with the discharge channel 6, effectively preventing internal heat Escape from the discharge channel 6 to prevent secondary pollution of the grain by hot and humid gas, and it is more energy-saving, and the discharge is more efficient and will not be blocked.

The back side of the feed hopper 2 is connected with a waste residue box 14, and the connection between the feed hopper 2 and the waste residue box 14 is cut off by a dust filter screen 13. The inner diameter of the filter screen 13 is smaller than the inner diameter of the top and bottom ends. Under the action of gravity, the grain falls into the discharge channel 6. At this time, the drive shaft 9 drives the sieve plate 10 to rotate to break up the grain. The built-in fan draws air, and the remaining hot and humid air is extracted through the filtration of the annular filter screen 8, and then transported to the water vapor filter box 16 through the air outlet pipe 11, and the water vapor is filtered and then transported to the blowing chamber 12 for further use.

Annular strainer 8 calibers reduce gradually from top to bottom.

The bottom of the box body 1 is provided with a hot air assembly 15, and the bottom of the box body 1 is provided with a hot air chamber 17, and the hot air chamber 17 communicates with the air outlet of the hot air assembly 15, and the connection between the hot air chamber 17 and the box body 1 passes through a vibrating filter screen 19 Partition, one side of the vibrating filter screen 19 is fixedly connected with an elastic sealing tape 20, one side of the elastic sealing tape 20 is fixedly connected with the inner cavity of the box body 1, and the hot air assembly 15 under the box body 1 outputs hot air and transports it to the hot air chamber 17 Inside, the slit of the vibrating filter screen 19 rises upwards. At this time, the conveying auger lifts the grain while transporting the grain, forming a slit, and the hot air in the hot air chamber 17 rises into the slit for drying. .

The inner cavity of the hot air chamber 17 is fixedly connected with a jacking cylinder 18, the top of the piston rod of the jacking cylinder 18 abuts against the bottom of the vibrating filter screen 19, and the piston rod of the jacking cylinder 18 slightly stretches up and down, driving the vibrating filter screen 19 slightly Swing up and down, prevent from shaking filter screen 19 meshes from being blocked.

The top of the box body 1 is provided with a slope that gradually rises from left to right, and the top is provided with a circular gas-gathering chamber 22, and the top of the circular gas-gathering chamber 22 is connected with an exhaust pipe 23, and the hot and humid gas generated passes through the box. The setting of the inclined surface on the top of the box body 1 accumulates in the gap on the inclined surface of the top of the box body 1, and then enters the circular gas gathering chamber 22. After a certain degree, the hot and humid gas is drawn out by the fan by opening the exhaust pipe 23.

The surface of the sieve plate 10 is provided with a plurality of combs distributed at intervals, and the surface of the sieve plate 10 is provided with a plurality of combs on the surface of the drive shaft 9, which are distributed in a ring shape. The grain falls into the discharge channel 6, and the drive shaft 9 drives the sieve plate. 10Turn to break up the grains.

When in use, grains are added through the hopper 2, and the grains are transported to the blowing chamber 12 and the dust filter 13 in the hopper 2, where the inner diameter of the box decreases, the grains are blocked and then fall under gravity, at this time, the air outlet pipe 11 Air is supplied to the blowing cavity 12, and the grain is blown, and a part of water vapor and a large amount of dust in the grain are blown into the dust filter screen 13, and the grain is blocked by the dust filter screen 13, and the water vapor and dust fall into the waste residue box 14, and then The grain continues to fall into the box body 1. At this time, the hot air assembly 15 below the box body 1 outputs hot air, which is transported into the hot air chamber 17, and rises upwards through the gap of the vibrating filter screen 19. At the same time of conveying, the grain is lifted up to form a gap, and the hot air in the hot air chamber 17 rises into the gap for drying, and the hot and humid gas generated passes through the setting of the top slope of the box body 1, and passes through the gap on the top slope of the box body 1. Accumulate, and then enter the circular gas-gathering cavity 22, after a certain degree, open the exhaust pipe 23, and pump out the hot and humid gas through the fan. When in use, the piston rod of the jacking cylinder 18 stretches slightly up and down, driving the vibrating filter screen 19 Slightly swing up and down to prevent the mesh of the vibrating filter screen 19 from being blocked. After the drying is completed, the material is discharged. When the barrel 4 rotates, the grain receiving trough 5 in the box body 1 will be loaded with grain, and then continue to rotate downward. , under the action of gravity, the grain falls into the discharge channel 6, at this time, the drive shaft 9 drives the sieve plate 10 to rotate, and the grain is broken up. Filtration extracts the remaining hot and humid air, and then transports it to the water vapor filter box 16 through the air outlet pipe 11. After filtering the water vapor, it is transported to the blowing chamber 12 for continued use. The bottom falls from the discharge channel 6 to complete the drying, and the rotating discharge method of the barrel 4 can prevent the inside of the box body 1 from directly communicating with the discharge channel 6, effectively preventing the internal hot air from escaping from the discharge channel 6, preventing The hot and humid gas pollutes the grain twice, and it is more energy-saving, and the discharge is more efficient and will not be blocked.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical content of the present invention In essence, any brief modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims

An easy-to-clean horizontal thermal cycle grain dryer, comprising a box body (1), the left side of the box body (1) is communicated with a feed hopper (2), and the inner cavity of the box body (1) Rotationally connected with a feeding auger (21) driven by a motor, it is characterized in that: the right side of the box body (1) is connected with a circular discharge box (3), and the circular discharge box (3) The bottom is connected with a discharge channel (6), and the inner cavity of the circular discharge box (3) is rotatably connected with a material cylinder (4) driven by a power mechanism, and the surface of the material cylinder (4) is provided with a material receiving Groove (5), the surface of the discharge passage (6) is communicated with a suction box (7), and the connection between the discharge passage (6) and the suction box (7) is cut off by an annular filter screen (8), the The inner cavity of the discharge channel (6) located at the center of the annular filter screen (8) is rotatably connected with a drive shaft (9) driven by a motor, and the surface of the drive shaft (9) is fixedly connected with a sieve plate (10). One side of the discharge channel (6) is communicated with an air outlet duct (11), the surface of the feed hopper (2) is provided with a blowing chamber (12), and one end of the outlet duct (11) is connected to the blowing chamber (12) The inner chamber of the air outlet pipe (11) communicates with the water vapor filter box (16) fixed on the bottom of the box body (1).
The easy-to-clean horizontal thermal cycle grain dryer according to claim 1, characterized in that: the back of the feed hopper (2) is connected with a waste residue box (14), and the feed hopper (2) is connected to the The connection of the waste residue box (14) is cut off by a dust filter screen (13), and the blowing cavity (12) is flush with the dust filter screen (13).
The easy-to-clean horizontal thermal cycle grain dryer according to claim 1, characterized in that: the inner diameter of the blowing cavity (12) and the dust filter (13) of the feed hopper (2) is smaller than the top and The inner diameter of the bottom end.
The easy-to-clean horizontal thermal circulation grain dryer according to claim 1, characterized in that: the caliber of the annular filter screen (8) gradually decreases from top to bottom.
The easy-to-clean horizontal heat circulation grain dryer according to claim 1, characterized in that: the bottom of the box (1) is provided with a hot air assembly (15), and the bottom of the box (1) is provided with There is a hot air chamber (17), and the hot air chamber (17) communicates with the air outlet of the hot air assembly (15). One side of the vibrating filter screen (19) is fixedly connected with an elastic sealing band (20), and one side of the elastic sealing band (20) is fixedly connected with the inner cavity of the box body (1).
The easy-to-clean horizontal thermal cycle grain dryer according to claim 5, characterized in that: the inner cavity of the hot air chamber (17) is fixedly connected with a jacking cylinder (18), and the jacking cylinder (18 ) the top of the piston rod abuts against the bottom of the vibrating filter screen (19).
The easy-to-clean horizontal thermal cycle grain dryer according to claim 1, characterized in that: the top of the box (1) is provided with a slope that gradually rises from left to right, and the top is provided with a circular An air-gathering cavity (22), the top of the circular gas-gathering cavity (22) communicates with an exhaust pipe (23).
The easy-to-clean horizontal thermal cycle grain dryer according to claim 1, characterized in that: the surface of the sieve plate (10) is provided with a plurality of comb teeth distributed at intervals, and the sieve plate (10) is arranged on the drive shaft The surface of (9) is provided with a plurality of ring-shaped distribution.