CN104719460B - A kind of pair of section binary grain dryer - Google Patents

Abstract

The invention discloses a double-stage double-body grain drying device, the technical gist of which is: the double-stage double-body grain drying device is mainly composed of a drying body, a damper body, a hoist and a hoist, and the drying body is A cuboid with an open top. A grain distributing trough is arranged at the upper end of the drying body, a grain discharging hopper is arranged at the lower end of the drying body, and 1 to 9 drying layers are arranged between the grain distributing trough and the grain discharging hopper; the slow soy body is a cylinder. The upper cone is set on the upper end of the bradycere). The lower end of the bradysum body is provided with a lower cone). Between the upper cone and the lower cone, 1 to 9 ventilation layers are set, and between the 2 ventilation layers, a slow soot layer B is set. The beneficial effects of the present invention are: it is beneficial to the drying section process and slow soot cooling The adjustment and online control of the section process. The grain can achieve the functions of slow drying and slow cooling, which can adjust the ratio of grain drying to slow cooling, which is conducive to giving full play to the advantages of grain variable temperature drying technology. Make the grain achieve the goal of slow recovery and slow cooling, and improve the quality of the grain.

Description

A double-stage double-body grain drying device

technical field

The invention belongs to the field of material drying technical equipment, and in particular relates to grain drying technical equipment, in particular to a double-stage double-body grain drying device.

technical background

At present, there are two main types of grain dryers at home and abroad: continuous type and batch type. Regardless of whether it is a continuous or batch grain dryer, the grain will go through two processes of drying and slowing down during the drying process. The ratio of the drying time of the grain in the continuous dryer to the soaking time is determined by the length of the drying section of the dryer and the length of the soaking section. The ratio of the drying time to the slowing time of the grain in the batch dryer is determined by the effective volume of the slowing section and the drying section of the dryer. When the dryer is working, the ratio of the drying time of the grain in the dryer to the slowing time remains unchanged. In addition, the drying quality of grain is closely related to the drying rate. A small drying slow-soaking ratio means that the length or effective volume of the drying section is small, and the length or effective volume of the slow-soaking section is large, and the grain is tempered in the dryer for a long time, which is beneficial to the moisture balance in the grain particles and is beneficial It is beneficial to improve the drying quality of grain, but at the same time, it will also increase the volume of the dryer significantly, increase the manufacturing cost, and increase the difficulty of installation and transportation; on the contrary, increasing the ratio of drying time to slowing time will affect the grain quality. dry quality. Therefore, the drying slow-to-Su ratio of the grain dryer is an important design parameter of the grain dryer. In order to improve the drying quality of the grain dryer and reduce the manufacturing cost at the same time, scholars and engineers and technicians in the field of grain drying have done a lot of research and design work on the design, operation process, grain drying technology and process of the grain dryer, and obtained A lot of results have been achieved.

The Chinese patent application number is CN201410483905 "a grain dryer with automatic weighing device", which relates to a grain dryer with automatic weighing device, including a drying tower, and the bottom of the drying tower is provided with a grain unloading machine Section, the grain unloading section includes a grain discharge box, the upper end of the grain discharge box is connected with the cooling section, the lower end of the grain discharge box is provided with a grain discharge hopper, and the outlet of the grain discharge hopper is provided with a grain discharge port, and the grain discharge port An electronic weighing automatic conveying device is arranged below, and a sprocket, a rotating shaft, a tensioning wheel and a speed regulating motor are sequentially arranged on the grain discharge box from left to right, and the sprocket, rotating shaft, tensioning wheel and speed regulating motor They are connected together by a chain, blades are arranged on the rotating shaft, the speed-regulating motor and the reducer are installed together, and the grain-discharging hopper is installed on the support of the grain-discharging hopper. In this invention, the entire drying machine is used as the weighing object, which affects the weighing accuracy and sensitivity.

This invention proposes an automatic weighing moisture online detection method, but does not involve the influence of dryness and slowness ratio on grain quality.

The Chinese patent application number is CN201410072460 "A Mobile Grain Dryer", which discloses a mobile grain dryer, including a hot air stove and three drying bins set together from small to large, and three drying bins To form a complete drying bin, the hot blast stove is covered with a drying bin, and the three drying bins are spirally and evenly arranged with grain loading hoppers, and the end of the drying bin is equipped with a screw feeder and a sprocket set, and the sprocket The group is connected with the drive reducer through a chain, and the drive reducer is installed on the chassis; the outside of the screw feeder is equipped with a bucket feeder for feeding to it, and two sets of rolling rings for rotation are installed outside the drying chamber. The group of rolling rings is installed on the roller support frame, and the lower end of the roller support frame is provided with a spiral support; wheels and an oil tank are installed on the chassis. This invention is beneficial to the automation of grain dryers, but the yield and precipitation are limited.

This invention proposes performance optimization for the structure of the mobile desiccant, but the output and drying rate are limited by the size of the system.

The Chinese patent application number is CN201210175786 "Remote Control Grain Dryer", which discloses a remote control grain dryer, including a microprocessor control module, which is connected with humidity A sensor, a three-phase SPWM wave output module and a host computer, the three-phase SPWM wave output module is connected to the grain dryer, and the microprocessor control module is connected to the host computer through an RS485 communication module. This invention is beneficial to the remote monitoring of grain dryers, but the online modification of grain conditions and environmental changes still needs further research.

This invention provides a remote control method, but does not substantially improve the structure of the desiccant.

The Chinese patent application number is CN201110239708 "New Low Temperature Grain Dryer". There are hot air pipes and exhaust pipes in the drying tower body. One hot air pipe is set at the center of the drying tower body, and the remaining hot air pipes are evenly distributed in the drying tower. The inner wall is provided with a heater in the hot air pipe, and the exhaust pipe is arranged around the central hot air pipe. Ventilation holes are arranged on the hot air pipe and the exhaust pipe, and an air outlet is provided on the top side wall of the drying tower body. Connected with the air outlet tube, the bottom side wall of the drying tower is provided with an air inlet, and a drainer is provided between the air outlet tube and the air inlet tube. The drainer includes a main evaporator, a condenser, and a compressor. The main evaporator is connected to the condenser, the condenser is connected to the main evaporator, and an expansion valve is installed on the connecting pipeline, a blower is installed in the air inlet tube, and a control box is installed outside the drainer. The invention integrates the hot air pipe, the heater and the drying tower, which is beneficial to the recovery and utilization of waste heat, but the maintenance of the heater is more difficult.

This invention proposes a new design for the heat supply mode and structure of the desiccant, but it does not propose an optimization scheme for the effect of the drying rate on grain quality.

The Chinese patent application number is CN201010192148 "a conveyor belt type grain dryer", which is used to solve the problems of large volume, inconvenient movement and high investment cost of grain crop drying equipment. The structure of the present invention consists of two stages of dry layers with the same structure. The grain is transported through the conveyor belt in the drying layer, and the moving speed of the conveyor belt is adjusted according to the humidity of the grain, which can be used to solve the problem that the drying time of the current drying equipment cannot be adjusted. The invention utilizes the flue gas for heat supply and the conveyor belt for drying during transportation, which is beneficial to adjust the drying time, but the output and precipitation range are limited.

This invention proposes a new idea for drying high-moisture grains, but when it is used for grains with a moisture content below 18%, the output is limited.

The Chinese patent application number is CN201010019518 "high-humidity grain dryer", which provides a high-humidity grain dryer. The body of the dryer is equipped with multiple drying chambers that can dry multiple grains at the same time, and the multiple drying chambers are arranged side by side. Setting, each drying chamber is surrounded by a ventilation plate with mesh, multiple drying chambers in the dryer body share a heat recovery chamber and an air duct, the heat recovery chamber is arranged in parallel above the air duct, the bottom surface of the air duct is open and directly connected to the The drying chambers are connected; the heat recovery chamber is externally connected to the flue gas induced draft fan and hot blast stove through the flue gas duct, and the air duct is externally connected to the cooling fan. The invention is beneficial to the drying of multi-variety and small-batch materials, but it is more difficult to distribute the grain in and out of the warehouse and among the warehouses.

This invention puts forward a practical idea for the drying method of small batches and multi-variety grains. When it is used for drying large batches of grains, the structure is too complicated and the cost performance is not high enough.

Contents of the invention

The object of the present invention is to provide a double-stage double-body grain drying device for avoiding the above-mentioned disadvantages. The purpose of the present invention can be achieved through the following technical solutions.

A two-stage two-body grain drying device, the technical points of which are:

As shown in Figure 1, a double-stage double-body grain drying device is mainly composed of a drying body (2), a slowing body (9), hoist I (1) and hoist II (8). The described drying body (2) is a cuboid with an open top. A grain distributing trough (3) is arranged at the upper end of the drying body, and a grain discharge hopper (6) is arranged at the lower end of the drying body. 1 to 9 drying layers (4) are arranged between the grain distribution trough and the grain discharge hopper. Between the two dry layers (4), a slow sore layer A (5) is provided. The grain delivery trough A (7) is set below the grain discharge hopper (6).

Described slow body (9) is a cylinder. Upper cone (10) is arranged on the upper end of slow sous body. The lower cone (13) is set at the lower end of the bradycere. Between the upper cone and the lower cone, 1 to 9 ventilation layers (11) are arranged. Between the two ventilation layers (11), a brady-resuscitation layer B (12) is set. Below the lower cone (13), a grain delivery trough B (14) is set.

As shown in Figures 2, 3 and 4 of the grain distribution trough, a plurality of grain distribution holes (19) are provided on the base plate (16) of the grain distribution trough (3). A grain distribution pipe (18) is arranged below each grain distribution hole. The angle α between the grain distribution pipe (18) and the horizontal plane is between 15° and 45°. Valve (21) is set on each grain distribution pipe. The upper surface of the grain distribution trough bottom plate is a rough surface. Side plates (22) are arranged around the bottom plate. A dividing plate (20) is arranged in the middle of the base plate, and the dividing plate (20) divides the base plate (16) into two. On the side plate (22), vibrating motors I (17) are arranged symmetrically. Elastic bearing I (15) is set on the back side of the grain distribution trough bottom plate. The lower end of the elastic support I (15) is fixed on the drying tower body (2).

The dry layer is shown in Figure 5 and Figure 6 . The drying layer (4) is mainly composed of an angular box (24), a half-angular box (23), an air inlet main pipe (26), an air inlet branch pipe (25), an exhaust main pipe (28), an exhaust air branch pipe (29), etc. . The cross-section of the corner box (24) is an isosceles triangle, the bottom edge is open, and the two end faces are connected with the wallboard of the drying layer. Wherein, the end face of the air exhaust angular box (30) on the same side as the exhaust air branch pipe (29) is open, and communicates with the air exhaust branch pipe (29). The air exhaust angle box is closed with the end face of the air inlet branch pipe (25) one side, and is not communicated with the air inlet branch pipe (25). The end face of the air inlet angular box (31) and the same side of the air inlet branch pipe (25) is open, and communicates with the air inlet branch pipe (25). The air inlet angular box is closed with the end face of the exhaust branch pipe (29) one side, and is not communicated with the exhaust branch pipe (29). The cross-section of the half-angle box is a right triangle, and the cross-sectional area is half of the cross-sectional area of the corner box (24). The bottom edge is open. The half-angle box is an exhaust angle box. The air exhaust angular boxes (30) and the air intake angular boxes (31) are arranged alternately. The distance between the bottom edge of the air exhaust angular box (30) and the apex of the air intake angular box is between 100mm and 1000mm. The air inlet supervisor (26) is provided with 2 to 4 air inlet branch pipes (25). An air inlet valve (27) is arranged on the air inlet branch pipe (25). 3～5 exhaust air branch pipes (29) are set on the exhaust air main pipe (28). The air inlet branch pipe (25) and the air exhaust branch pipe (29) are respectively located on both sides of the drying layer.

Described grain delivery trough A (7) is shown in Figure 7, 8, 9, and support I (40) is set on the trough body A (33), and metering block I (35) is set on the support I (40). Measuring block I is connected with support I (40) with hinge I (39). The adjusting rod I (34) is installed on the support I (40), and the inclination angle of the metering block I (35) can be adjusted by the adjusting rod I (34) and the hinge I (39). The included angle between the metering block I (35) and the horizontal plane can be adjusted between -15° and 30°. A metering block valve I (37) is arranged on the metering block I (35). Metering block valve I (37) can regulate the sectional area of metering block grain discharge port I (38). A collecting plate (41) is arranged on the tank body A (33), and the collecting plate is located below the grain discharge port I (38) of the metering block. The collecting plate (41) and the horizontal plane are at _an angle of 10° to 45°. On both sides of the tank body A (33), the vibrating motor II (42) is symmetrically installed, and the installation angle of the vibrating motor II can be adjusted. On the tank body A (33), an elastic support II (32) is set. The grain feeding trough A (7) is installed on the drying body (2) through the elastic support II (32). On the metering block I (35), a soft connection I (36) is set. The grain delivery trough A (7) is connected with the grain discharge hopper (6) on the drying body (2) through the soft connection I (36). The grain that enters the metering block I (35) from the grain discharge hopper (6) falls onto the collecting plate (41) through the grain discharging port I (38) of the metering block, and flows into the tank body A (33) through the collecting plate (41). ), through vibration conveying, discharge from grain discharge port (43).

The ventilation layer (11) is shown in Figures 10 and 11. On the cylindrical ventilation channel (44), a ventilation nozzle (50) is set, and the air passage of the ventilation channel (44) communicates with the ventilation nozzle. On the inner cylindrical surface of the cylindrical ventilation channel (44), 6 to 60 variable-section angular boxes (45) are arranged, as shown in Figs. 12 and 13 . The variable cross-section angular box (45) is made up of two trapezoidal plates and a small triangular end plate (52). The cross section of the angular box is triangular in shape. On the inner cylindrical surface of the cylindrical air duct (44), there are 6 to 60 triangular air vents. Ventilation opening sectional area is identical with the large triangular opening (51) of the variable section angular box, and communicates with the large triangular opening (51). The variable section angular boxes (45) are symmetrically distributed, and the large triangular open end is connected with the inner side of the cylindrical air duct (44). Small triangular end plate (52) is connected with grain distribution cone (49). An elastic block (46) is set between the small triangular end plate (52) and the grain distribution cone. The cone of grain distribution cone (49) is upwards. The vibration transmission rod (47) is set at the grain distribution cone top. Connect with elastic rod (48) between the vibrating rod (47) and the grain distribution cone. At the bottom of the grain distribution cone, the vibration transmission rod (47) is also set. Transmission rod (47) is installed on the grain distribution cone bottom rib with elastic rod (48).

The grain feeding trough B (14) is shown in Figure 16, the bracket II (56) is installed on the tank body B (54), and the metering block II ( 58). On the metering block II (58), a vibration transmission rod seat (59) is set, and the vibration rod (47) is connected to the vibration rod (48). Measuring block II (58) is connected with lower cone (13) with soft connection II (60). On the metering block discharge port II (62), the metering block valve II (61) is set. The included angle between the metering block II (58) and the horizontal plane can vary between -15°～+30°. A vibration motor III (53) is arranged on the tank body B (54). The tank body B (54) of the grain delivery tank B (14) is installed on the frame of the slow Su body (9) by elastic bearing III (55).

The brazier layer A (5) is a chamber with a rectangular section, located between two dry layers (4).

There are 2 to 24 discharge hoppers (6), and the cross section of the drying layer (4) is equally divided into 2 to 24 parts. The maximum sectional area of each discharge hopper is the equal area of the cross section of the drying layer (4). The grain discharge port of each grain discharge hopper is connected with the soft connection (36) on the metering block I (35).

Described upper cone (10) is an inverted cone, and the cone is manufactured with a dace sieve plate. Upper cone (10) is installed on the top of slow su body (9).

Described lower cone (13) is to make with dace sieve plate, and the top of lower cone (13) is connected with the bottom of slow soy layer B (12). The bottom of the lower cone (13) is connected with the soft connection II (60) on the metering block II (58).

The beneficial effects that the present invention has are:

(1) Concentrate the drying section process of the grain drying system in the drying body, and concentrate the slow cooling section process of the drying system in the slow cooling section, which is conducive to the adjustment and online control of the drying section process and slow cooling section process.

(2) Taking advantage of the advantages of large volumes of grain storage bins and temporary storage bins, the grain temporary storage and slow cooling functions are integrated, so that the grain can achieve the goal of slow slow cooling and slow cooling, and improve the quality of the grain.

(3) Utilize the characteristics of slow cooling of grain under low temperature and breeze conditions to realize the low temperature and breeze precipitation process, thereby reducing the precipitation of the dry body and improving the yield of the whole system.

(4) Using vibration measurement and grain discharge mechanism to realize non-damage grain discharge technology and process, which is conducive to online control of the output of the drying system.

(5) By controlling the number of air inlet branch pipes in the drying layer and adjusting the effective volume of the drying layer, the ratio of grain drying to simmering can be adjusted, which is conducive to giving full play to the advantages of grain variable temperature drying technology.

Description of drawings

Accompanying drawing 1 is the overall structural representation of the present invention

Accompanying drawing 2 is the front view of grain distribution trough of the present invention

Accompanying drawing 3 is the top view of the grain distribution trough of the present invention

Accompanying drawing 4 is the right side view of the grain distribution trough of the present invention

Accompanying drawing 5 is the front view of drying layer of the present invention

Accompanying drawing 6 is the drying layer right view (section) figure of the present invention

Accompanying drawing 7 is the front view of grain feeding trough A of the present invention

Accompanying drawing 8 is the plan view of grain feeding trough A of the present invention

Accompanying drawing 9 is the right side view of grain feeding trough A of the present invention

Accompanying drawing 10 is the front sectional view of ventilation layer of the present invention

Accompanying drawing 11 is the ventilation layer bottom view of the present invention

Accompanying drawing 12 is the front view of the angular box with variable section of the present invention

Accompanying drawing 13 is the right side view of the angular box with variable section of the present invention

Accompanying drawing 14 is the schematic diagram of elastic bar of the present invention

Accompanying drawing 15 is the schematic diagram of the vibration transmission bar of the present invention

Accompanying drawing 16 is the schematic diagram of the structure of grain feeding trough B of the present invention

Graphic description of the attached drawings:

1. Elevator Ⅰ 2. Drying body 3. Grain distribution trough 4. Drying layer 5. Suspension layer A 6. Grain discharge hopper 7. Grain delivery trough A

8. Elevator Ⅱ 9. Brazier body 10. Upper cone 11. Ventilation layer 12. Brady layer B 13. Lower cone

14. Grain delivery trough B 15. Elastic support Ⅰ 16. Bottom plate 17. Vibration motor Ⅰ 18. Grain distribution pipe 19. Grain distribution hole 20. Partition plate 21. Valve 22. Side plate 23. Half-angle box 24. Angle shape Box 25. Air intake branch pipe 26. Air intake supervisor

27. Air inlet valve 28. Exhaust air main pipe 29. Exhaust air branch pipe 30. Exhaust air angle box 31. Air inlet angle box

32. Elastic support Ⅱ 33. Tank body A 34. Adjusting rod Ⅰ 35. Measuring block Ⅰ 36. Soft connection Ⅰ 37. Measuring block valve Ⅰ

38. Measuring block grain discharge port Ⅰ 39. Hinge Ⅰ 40. Bracket Ⅰ 41. Collecting plate 42. Vibration motor Ⅱ 43. Grain discharge port

44. Ventilation channel 45. Angular box with variable cross section 46. Elastic block 47. Vibration transmission rod 48. Elastic rod 49. Grain distribution cone

50. Ventilation nozzle 51. Large triangle opening 52. Small triangle end plate 53. Vibration motor Ⅲ 54. Tank body B

55. Elastic support Ⅲ 56. Support Ⅱ 57. Adjusting rod Ⅱ 58. Measuring block Ⅱ 59. Vibration transmission rod seat 60. Soft connection Ⅱ

61. Metering block valve Ⅱ 62. Metering block discharge port Ⅱ 63. Hinge Ⅱ

detailed description

Example

The following combination and examples further describe the present invention in detail.

See attached drawings 1--16, as shown in Figure 1, the double-stage double-body grain drying device mainly consists of a drying body (2), a slowing body (9), hoist I (1) and hoist II (8 ) and other components. The described drying body (2) is a cuboid with an open top. A grain distributing trough (3) is arranged at the upper end of the drying body, and a grain discharge hopper (6) is arranged at the lower end of the drying body. 1 to 9 drying layers (4) are arranged between the grain distribution trough and the grain discharge hopper. Between the two dry layers (4), a slow sore layer A (5) is provided. The grain delivery trough A (7) is set below the grain discharge hopper (6).

Bradylum (9) is a cylinder. Upper cone (10) is arranged on the upper end of slow sous body. The lower cone (13) is set at the lower end of the bradycere. Between the upper cone and the lower cone, 1 to 9 ventilation layers (11) are arranged. Between the two ventilation layers (11), a brady-resuscitation layer B (12) is set. Below the lower cone (13), a grain delivery trough B (14) is set.

Grain distribution trough shown in Figure 2,3,4, offers a plurality of grain distribution holes (19) on the base plate (16) of grain distribution trough (3). A grain distribution pipe (18) is arranged below each grain distribution hole. The angle α between the grain distribution pipe (18) and the horizontal plane is between 15° and 45°. Valve (21) is set on each grain distribution pipe. The upper surface of the grain distribution trough bottom plate is a rough surface. Side plates (22) are arranged around the bottom plate. A dividing plate (20) is arranged in the middle of the base plate, and the dividing plate (20) divides the base plate (16) into two. On the side plate (22), vibrating motors I (17) are arranged symmetrically. Elastic bearing I (15) is set on the back side of the grain distribution trough bottom plate. The lower end of the elastic support I (15) is fixed on the drying tower body (2).

The drying layer is shown in Figures 5 and 6. The drying layer (4) is mainly composed of an angular box (24), a half-angular box (23), an air inlet main pipe (26), an air inlet branch pipe (25), an exhaust main pipe (28), an exhaust air branch pipe (29), etc. . The cross-section of the corner box (24) is an isosceles triangle, the bottom edge is open, and the two end faces are connected with the wallboard of the drying layer. Wherein, the end face of the air exhaust angular box (30) on the same side as the exhaust air branch pipe (29) is open, and communicates with the air exhaust branch pipe (29). The air exhaust angle box is closed with the end face of the air inlet branch pipe (25) one side, and is not communicated with the air inlet branch pipe (25). The end face of the air inlet angular box (31) and the same side of the air inlet branch pipe (25) is open, and communicates with the air inlet branch pipe (25). The air inlet angular box is closed with the end face of the exhaust branch pipe (29) one side, and is not communicated with the exhaust branch pipe (29). The cross-section of the half-angle box is a right triangle, and the cross-sectional area is half of the cross-sectional area of the corner box (24). The bottom edge is open. The half-angle box is an exhaust angle box. The air exhaust angular boxes (30) and the air intake angular boxes (31) are arranged alternately. The distance between the bottom edge of the air exhaust angular box (30) and the apex of the air intake angular box is between 100mm and 1000mm. The air inlet supervisor (26) is provided with 2～4 air inlet branch pipes (25). An air inlet valve (27) is arranged on the air inlet branch pipe (25). 3～5 exhaust air branch pipes (29) are set on the exhaust air main pipe (28). The air inlet branch pipe (25) and the air exhaust branch pipe (29) are respectively located on both sides of the drying layer.

As shown in Figures 7, 8 and 9, the grain delivery trough A (7) is provided with a support I (40) on the tank body A (33), and a metering block I (35) is set on the support I (40). Measuring block I is connected with support I (40) with hinge I (39). The adjusting rod I (34) is installed on the support I (40), and the inclination angle of the metering block I (35) can be adjusted by the adjusting rod I (34) and the hinge I (39). The included angle between the metering block I (35) and the horizontal plane can be adjusted between -15° and 30°. A metering block valve I (37) is arranged on the metering block I (35). Metering block valve I (37) can regulate the sectional area of metering block grain discharge port I (38). A collecting plate (41) is arranged on the tank body A (33), and the collecting plate is located below the grain discharge port I (38) of the metering block. The collecting plate (41) and the horizontal plane are at _an angle of 10° to 45°. On both sides of the tank body A (33), the vibrating motor II (42) is symmetrically installed, and the installation angle of the vibrating motor II can be adjusted. On the tank body A (33), an elastic support II (32) is set. The grain feeding trough A (7) is installed on the drying body (2) through the elastic support II (32). On the metering block I (35), a soft connection I (36) is set. The grain delivery trough A (7) is connected with the grain discharge hopper (6) on the drying body (2) through the soft connection I (36). The grain that enters the metering block I (35) from the grain discharge hopper (6) falls onto the collecting plate (41) through the grain discharging port I (38) of the metering block, and enters the tank body A (33) through the collecting plate (41). ), through vibration conveying, discharge from grain discharge port (43).

The ventilation layer (11) is as shown in Figures 10 and 11. On the cylindrical ventilation channel (44), a ventilation nozzle (50) is set, and the air passage of the ventilation channel (44) communicates with the ventilation nozzle. On the inner cylindrical surface of the cylindrical ventilation channel (44), 6 to 60 variable-section angular boxes (45) are arranged, as shown in Figs. 12 and 13 . The variable cross-section angular box (45) is made up of two trapezoidal plates and a small triangular end plate (52). The cross section of the angular box is triangular in shape. On the inner cylindrical surface of the cylindrical air duct (44), there are 6 to 60 triangular air vents. Ventilation opening sectional area is identical with the large triangular opening (51) of the variable section angular box, and communicates with the large triangular opening (51). The variable section angular boxes (45) are symmetrically distributed, and the large triangular open end is connected with the inner side of the cylindrical air duct (44). Small triangular end plate (52) is connected with grain distribution cone (49). An elastic block (46) is set between the small triangular end plate (52) and the grain distribution cone. The cone of grain distribution cone (49) is upwards. The vibration transmission rod (47) is set at the grain distribution cone top. Connect with elastic rod (48) between the vibrating rod (47) and the grain distribution cone. At the bottom of the grain distribution cone, the vibration transmission rod (47) is also set. Transmission rod (47) is installed on the grain distribution cone bottom rib with elastic rod (48).

Grain delivery trough B (14) as shown in Figure 16, installs support II (56) on the tank body B (54), by hinge II (63) and adjusting rod II (57), metering block II (58) is installed. On the metering block II (58), a vibration transmission rod seat (59) is set, and the vibration rod (47) is connected to the vibration rod (48). Measuring block II (58) is connected with lower cone (13) with soft connection II (60). On the metering block discharge port II (62), the metering block valve II (61) is set. The included angle between the metering block II (58) and the horizontal plane can vary between -15°～+30°. A vibration motor III (53) is arranged on the tank body B (54). The tank body B (54) of the grain delivery tank B (14) is installed on the frame of the slow Su body (9) by elastic bearing III (55).

Brady layer A (5) is a chamber with a rectangular section, located between two dry layers (4).

There are 2 to 24 discharge hoppers (6), and the cross section of the drying layer (4) is equally divided into 2 to 24 parts. The maximum sectional area of each discharge hopper is the equal area of the cross section of the drying layer (4). The grain discharge port of each grain discharge hopper is connected with the soft connection (36) on the metering block I (35).

Upper cone (10) is an inverted cone, and the cone is made with a fish sieve plate. Upper cone (10) is installed on the top of slow su body (9).

Lower cone (13) is to make with dace sieve plate, and the top of lower cone (13) is connected with the bottom of slow soy layer B (12). The bottom of the lower cone (13) is connected with the soft connection II (60) on the metering block II (58).

Working process of the present invention:

After being lifted by the hoist, the grain falls into the grain distribution trough of the drying body. The vibration of the grain distribution trough and the multi-point distribution of grain are beneficial to avoid the problem of automatic grading of grain caused by one point of grain feeding. When the grain enters the drying layer, the hot air heats the grain and takes away the moisture. The drying intensity of the drying layer is closely related to the length of time for the grain to pass through the drying layer. By controlling the air inlet valve on the air inlet branch pipe, the length of the drying layer can be adjusted, and the grain drying rate can be adjusted. The grain is dried in the drying layer, slowed in the slowing layer, and then dried and slowed, and then enters the grain discharge hopper, and then enters the metering block I through a soft connection. The grain discharge volume of metering block Ⅰ can be manually adjusted through the adjustment rod Ⅰ and the valve Ⅰ of the metering block, and then the frequency of the vibration motor can be adjusted to adjust the grain discharge volume online so that the grain falls into the grain feeding trough A.

The grain is then lifted by the hoist into the upper cone of the slow Su body. During the process from the upper cone to the lower cone, the grain is dried and slowed down by the breeze of multiple ventilation layers, and then enters the metering block II and is sent out through the grain delivery trough B. On the metering block II, install the vibrating rod. The vibrating rod is connected with the metering block II and the grain distribution cone by the vibrating rod. Through the vibrating motor, vibrating rod, vibrating rod, and grain distributing cone, the grains in the slowing body vibrate to destroy the arching phenomenon of the grains in the slowing body. The upper and lower cones of the brassica are made of dace sieves to allow the passage of the breeze. There are multiple ventilation layers in the slow su body, arranged according to the law of the upper cone - air intake ventilation layer - exhaust ventilation layer... air intake ventilation layer - lower cone, so that the grain can flow from top to bottom During the moving process, they are all affected by breeze drying and breeze slowing, and the goal of dry precipitation is achieved.

Claims (1)

1. A double-stage double-body grain drying device, which is mainly composed of a drying body (2), a slowing body (9), a hoist I (1) and a hoist II (8); it is characterized in that: The drying body (2) is a cuboid with an open top; a grain distribution trough (3) is arranged at the upper end of the drying body, a grain discharge hopper (6) is arranged at the lower end of the drying body, and 9 drying layer (4); between the 2 dry layers (4), a slow soy layer A (5) is set, and a grain feeding trough A (7) is set under the grain discharge hopper (6); the slow soy body (9) is A cylinder, the upper cone (10) is set at the upper end of the slow body, the lower cone (13) is set at the lower end of the slow body, and 9 ventilation layers (11) are set between the upper cone and the lower cone , the slow sore layer B (12) is set between the two ventilation layers (11), and the grain feeding trough B (14) is set under the lower cone (13); Described ventilation layer (11) is on the cylindrical ventilation channel (44), and ventilation nozzle (50) is set, and the air channel of ventilation channel (44) communicates with the ventilation nozzle, and on the cylindrical ventilation channel (44) inner cylindrical surface 6 to 60 variable-section angular boxes (45) are set, and the variable-section angular boxes (45) are composed of two trapezoidal plates and small triangular end plates (52); 6～60 triangular air vents are provided on the inner cylindrical surface of the shaped air duct (44); The boxes (45) are symmetrically distributed, the large triangular open end is connected with the inside of the cylindrical air duct (44), the small triangular end plate (52) is connected with the grain distribution cone (49), and the small triangular end plate (52) is connected with the grain distribution cone Elastic block (46) is set between, and the cone of grain distribution cone (49) is upwards, and transmission vibration rod (47) is set at distribution cone top; ) connection, at the bottom of the grain distribution cone, the vibration transmission rod (47) is also set, and the vibration transmission rod (47) is installed on the grain distribution cone bottom rib with an elastic rod (48).