阅读说明：本技术 谷物烘干机 (Grain drying machine ) 是由 祝磊 于 2019-10-02 设计创作，主要内容包括：本发明提供了谷物烘干机,其包括落地安装架,安装架上固定安装有一级预热机构,一级预热机构用于对粮食进行预热处理,一级预热机构包括上下两端开口布置的竖直预热漏斗,预热漏斗的开口大小沿竖直方向由下至上逐渐增大,预热漏斗的大开口处同轴固定设置有可拆卸连配合的圆形密封板,密封板的上方同轴设置有进料漏斗且进料漏斗与安装架固定连接,进料漏斗的开口大小由下至上逐渐增大,所述密封板上同轴穿设有两端开口布置的连接筒,连接筒与密封板转动连接配合,连接筒的顶端与进料漏斗的下端开口对接接通且两者转动连接配合、连接筒底端延伸至预热漏斗内。(The invention provides a grain drying machine, which comprises a floor mounting frame, wherein a primary preheating mechanism is fixedly mounted on the mounting frame and used for preheating grains, the primary preheating mechanism comprises a vertical preheating funnel with openings at the upper end and the lower end, the opening size of the preheating funnel is gradually increased from bottom to top along the vertical direction, a circular sealing plate which is detachably matched with the large opening of the preheating funnel is coaxially and fixedly arranged at the large opening of the preheating funnel, a feeding funnel is coaxially arranged above the sealing plate and is fixedly connected with the mounting frame, the opening size of the feeding funnel is gradually increased from bottom to top, the connecting cylinder that both ends opening was arranged is worn to be equipped with coaxially on the closing plate, and the connecting cylinder cooperates with the closing plate swivelling joint, and both swivelling joints cooperation, connecting cylinder bottom extend to in preheating the funnel in the top of connecting cylinder and feed hopper's lower extreme opening butt joint switch-on and both swivelling joints.)

1. Grain dryer, its characterized in that: which comprises a floor mounting frame, a primary preheating mechanism is fixedly arranged on the mounting frame and used for preheating grains,

the primary preheating mechanism comprises a vertical preheating funnel with openings at the upper end and the lower end, the opening size of the preheating funnel is gradually increased from bottom to top along the vertical direction, a circular sealing plate which is detachably connected and matched is coaxially and fixedly arranged at the large opening of the preheating funnel, a feeding funnel is coaxially arranged above the sealing plate and is fixedly connected with a mounting frame, the opening size of the feeding funnel is gradually increased from bottom to top, a connecting cylinder with openings at the two ends is coaxially penetrated and arranged on the sealing plate, the connecting cylinder is rotatably connected and matched with the sealing plate, the top end of the connecting cylinder is in butt joint with the opening at the lower end of the feeding funnel, the connecting cylinder and the opening at the lower end of the feeding funnel are rotatably connected and matched;

coaxial fixed cover is equipped with rotor plate one on the outer disc of connecting cylinder bottom, the coaxial rotor plate two rather than the isodiametric that is provided with in below of rotor plate one, be provided with between rotor plate one and the rotor plate two and be used for connecting rectangle guide board between them, the width direction of guide board is on a parallel with the axial of connecting cylinder, the length direction of guide board and the radial contained angle of rotor plate two are acute angle and this acute angle is greater than 15 and is less than 45, the guide board flushes along length direction's one end and the outer disc of rotor plate two, the other end flushes with the outer disc of connecting cylinder, the guide board sets up in a plurality ofly and arranges along rotor plate two place circumferencial direction arrays, coaxial (mixing) shaft that is provided with in the connecting cylinder, the lower extreme and two fixed connection of rotor plate, the upper end of (.

2. The grain drying machine according to claim 1, wherein a conical cover matched with the preheating funnel is fixedly sleeved outside the preheating funnel, a preheating rod attached to the preheating funnel is embedded on the inner wall of the conical cover, the preheating rod is used for generating heat and transferring the heat to the preheating funnel, the preheating rod is attached to the bottom of the preheating funnel from the top of the preheating funnel, the preheating funnel is made of a material with good heat conduction performance, and the preheating rod is provided with a plurality of conical covers and is arranged in an array mode along the circumferential direction of the preheating funnel.

3. The grain dryer according to claim 2, wherein the angle between the length direction of the guide plate and the second radial direction of the rotating plate is 30 °.

4. The grain dryer according to claim 2, further comprising a pipe chain conveyor, wherein an input end of the pipe chain conveyor is connected to an output end of the primary preheating mechanism and an output end of the pipe chain conveyor is connected to an input end of the secondary drying mechanism, and the pipe chain conveyor is used for conveying the preheated grains to the secondary drying mechanism.

5. The grain dryer of claim 4, wherein: the pipe chain conveying mechanism comprises a first mounting shell and a second mounting shell which are fixedly connected with a mounting frame and are airtight, the first mounting shell and the second mounting shell are coplanar and arranged at intervals, one end face, away from each other, of the first mounting shell and the second mounting shell is respectively provided with an arc-shaped face, one end face, close to each other, of the first mounting shell and the second mounting shell is respectively provided with a rectangular mounting plane, the width direction of the rectangular mounting plane is vertically arranged, one end, along the length direction, of each mounting plane is provided with a transition pipeline for connecting the first mounting shell and the second mounting shell, one end, away from the transition pipeline, of the mounting plane on the first mounting shell is provided with a T-shaped tee input pipeline, the input pipeline comprises a horizontal section and a vertical section which are mutually connected, the axial direction of the horizontal section of the input pipeline is parallel to the axial direction of the transition pipeline, the diameters of the horizontal section of the input pipeline are equal, The other end of the second drying mechanism is connected and communicated with the second mounting shell through a second drying mechanism, and the input end of the second drying mechanism is positioned between the input pipeline and the second mounting shell.

6. The grain dryer of claim 5, wherein: the pipe chain conveying mechanism further comprises a driving drive plate and a driven drive plate, the driving drive plate is arranged in the first installation shell in a rotating mode, the driven drive plate is arranged in the second installation shell in a rotating mode, the axial directions of the driving drive plate and the driven drive plate are all parallel to the axial direction of the connecting cylinder, a conveying chain used for connecting the driving drive plate and the driven drive plate is arranged between the driving drive plate and the driven drive plate, the conveying chain is meshed with the driving drive plate and used for transmitting power of the driving drive plate to the driven drive plate, the conveying chain sequentially bypasses the driving drive plate, the horizontal section of the input pipeline penetrates through the input end of the secondary drying mechanism, the driven drive plate is bypassed, the conveying chain penetrates through the transition channel to form a closed circulation loop, a circular conveying plate matched with the transition pipeline is arranged on the conveying.

7. The grain dryer of claim 6, wherein: a material storage cavity is formed between every two adjacent conveying plates, and the pipe chain conveying mechanism receives the preheated grains and temporarily stores the grains in the material storage cavity.

8. The grain dryer of claim 7, wherein:

the conveying chain is provided with an annular chain which is positioned between two adjacent conveying plates and is positioned at the center, and a plurality of teeth protruding outwards are arrayed in the circumferential direction of the driving drive plate/driven drive plate;

and the conveying chain is matched with the driving drive plate/the driven drive plate, the conveying plates are positioned in the groove formed between two adjacent teeth, and the tip parts of the teeth are embedded into the annular chain between two adjacent conveying plates.

9. The grain dryer of claim 6, wherein:

the dryer also comprises a power driving part which is used for providing driving power for the primary preheater and the pipe chain conveying mechanism.

10. The grain dryer of claim 9, wherein: the power driving part comprises a second motor fixedly arranged on the mounting frame and a power main shaft rotatably arranged on the mounting frame, the axial direction of an output shaft of the second motor and the axial direction of the power main shaft are both vertically arranged, the power main shaft movably penetrates through the first mounting shell to be coaxially and fixedly connected with the driving drive plate, a first belt transmission component used for connecting the first motor output shaft and the power main shaft and transmitting the power of the second motor output shaft to the power main shaft is arranged between the second motor output shaft and the power main shaft, a second belt transmission component used for connecting the first motor output shaft and the power main shaft and transmitting the power of the power main shaft to the connecting cylinder is arranged between the power main shaft and the connecting cylinder, the first belt transmission component;

the belt transmission assembly comprises a first driving belt wheel and a first driven belt wheel, wherein the first driving belt wheel and the first driven belt wheel are coaxially and fixedly sleeved on an output shaft of a second motor, the first driven belt wheel and the first driven belt wheel are arranged on a power main shaft, the first driving belt wheel and the first driven belt wheel are arranged between the first driving belt wheel and the first driven belt wheel and are used for connecting the first driving belt wheel and the first driven belt wheel, the diameter of the first driving belt wheel is smaller than that of the first driven belt wheel, the second belt transmission assembly comprises a second driving belt wheel and a second driven belt wheel, the second driving belt wheel and the second driven belt wheel are coaxially and fixedly sleeved on a connecting cylinder, the second driving belt.

Technical Field

The invention relates to a grain dryer, in particular to a grain dryer.

Background

The moisture content of the grain often directly determines whether the grain can be safely stored, if the moisture content of the grain is too high, the phenomena of heating, mildew, even erosion and the like are generated very easily, so that the quality of the grain is greatly reduced, and the economic benefit of the grain is seriously influenced, so that the grain drying treatment is very important, wherein for grain stations/grain stores, grain drying equipment is adopted to dry the grain, and at present, the common piece of the grain drying equipment has certain defects, such as complex structure, high cost, incapability of uniformly drying the grain particles and high energy consumption; for farmers, grain drying is also a difficult problem, the grain drying is mainly realized through natural airing and air drying, the grain drying not only needs a larger place to spread the grain, but also has high labor intensity, if the weather is rainy, the quality of the grain is difficult to be ensured, and in order to overcome the defects and the problems, the inventor relates to a gas suspension grain drying machine which has the advantages of ingenious structure, simple principle, low cost, convenient popularization and use and capability of uniformly drying grain particles.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the gas suspension grain dryer which has the advantages of ingenious structure, simple principle, low cost, convenience in popularization and use and capability of uniformly drying grain particles.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A grain dryer comprises a floor mounting rack, a first-stage preheating mechanism, a pipe chain conveying mechanism, a second-stage drying mechanism, a cooling mechanism and a power driving part are fixedly mounted on the mounting rack, the input end of the pipe chain conveying mechanism is communicated with the output end of the first-stage preheating mechanism, the output end of the pipe chain conveying mechanism is communicated with the input end of the second-stage drying mechanism, the output end of the second-stage drying mechanism is communicated with the input end of the cooling mechanism, the output end of the cooling mechanism inclines downwards to point to a stacking point, the first-stage preheating mechanism is used for preheating grains, the pipe chain conveying mechanism is used for conveying the preheated grains to the second-stage drying mechanism, the second-stage drying mechanism is used for carrying out air suspension drying on the preheated grains, the cooling mechanism receives, the power driving part is used for providing driving power for the primary preheater and the pipe chain conveying mechanism.

As a further optimization or improvement of the present solution.

The primary preheating mechanism comprises a vertical preheating funnel with openings at the upper end and the lower end, the opening size of the preheating funnel is gradually increased from bottom to top along the vertical direction, a circular sealing plate which is detachably connected and matched is coaxially and fixedly arranged at the large opening of the preheating funnel, a feeding funnel is coaxially arranged above the sealing plate and is fixedly connected with a mounting frame, the opening size of the feeding funnel is gradually increased from bottom to top, a connecting cylinder with openings at the two ends is coaxially penetrated and arranged on the sealing plate, the connecting cylinder is rotationally connected and matched with the sealing plate, the top end of the connecting cylinder is in butt joint with the opening at the lower end of the feeding funnel and is rotationally connected and matched with the opening at the lower end of the feeding funnel, and the bottom end;

the coaxial fixed sleeve is provided with a first rotating plate on the outer circular surface of the bottom end of the connecting cylinder, a second rotating plate with the same diameter is coaxially arranged below the first rotating plate, a rectangular guide plate for connecting the first rotating plate and the second rotating plate is arranged between the first rotating plate and the second rotating plate, the width direction of the guide plate is parallel to the axial direction of the connecting cylinder, the included angle between the length direction of the guide plate and the second radial direction of the rotating plate is an acute angle, the acute angle is more than 15 degrees and less than 45 degrees, preferably, the included angle between the length direction of the guide plate and the second radial direction of the rotating plate is 30 degrees, one end of the guide plate along the length direction is flush with the outer circular surface of the second rotating plate, the other end of the guide plate is flush with the outer circular surface of, a stirring shaft is coaxially arranged in the connecting cylinder, the lower end of the stirring shaft is fixedly connected with the second rotating plate, and the upper end of the stirring shaft extends into the feeding hopper;

the outside fixed cover that preheats the funnel is equipped with rather than the toper cover that matches, inlays on the inner wall of toper cover to be equipped with the preheating rod of preheating the funnel and laminating mutually, preheat the rod and be used for generating heat and with heat transfer to preheating on the funnel, preheat the rod and laminate to its bottom by the top of preheating the funnel, preheat the funnel and make for the material that the heat conductivility is good, it is provided with a plurality ofly and along preheating funnel place circumferencial direction array arrangement to preheat the rod.

As a further optimization or improvement of the present solution.

The pipe chain conveying mechanism comprises a first mounting shell and a second mounting shell which are fixedly connected with a mounting frame and are airtight, the first mounting shell and the second mounting shell are coplanar and arranged at intervals, one end face, away from each other, of the first mounting shell and the second mounting shell is respectively provided with an arc-shaped face, one end face, close to each other, of the first mounting shell and the second mounting shell is respectively provided with a rectangular mounting plane, the width direction of the rectangular mounting plane is vertically arranged, one end, along the length direction, of each mounting plane is provided with a transition pipeline for connecting the first mounting shell and the second mounting shell, one end, away from the transition pipeline, of the mounting plane on the first mounting shell is provided with a T-shaped tee input pipeline, the input pipeline comprises a horizontal section and a vertical section which are mutually connected, the axial direction of the horizontal section of the input pipeline is parallel to the axial direction of the transition pipeline, the diameters of the horizontal section of the input pipeline are equal, The other end of the second-stage drying mechanism is connected and communicated with the second mounting shell through a second-stage drying mechanism, and the input end of the second-stage drying mechanism is positioned between the input pipeline and the second mounting shell;

the pipe chain conveying mechanism further comprises a driving drive plate and a driven drive plate, the driving drive plate is arranged in the first installation shell in a rotating mode, the driven drive plate is arranged in the second installation shell in a rotating mode, the axial directions of the driving drive plate and the driven drive plate are all parallel to the axial direction of the connecting cylinder, a conveying chain used for connecting the driving drive plate and the driven drive plate is arranged between the driving drive plate and the driven drive plate, the conveying chain is meshed with the driving drive plate and used for transmitting power of the driving drive plate to the driven drive plate, the conveying chain sequentially bypasses the driving drive plate, the horizontal section of the input pipeline penetrates through the input end of the secondary drying mechanism, the driven drive plate is bypassed, the conveying chain penetrates through the transition channel to form a closed circulation loop, a circular conveying plate matched with the transition pipeline is arranged on the conveying.

As a further optimization or improvement of the present solution.

The secondary drying mechanism comprises a vertically arranged suspension tank, the axial direction of the suspension tank is parallel to the axial direction of the preheating funnel, the suspension tank is composed of an upper tank body and a lower tank body which are fixedly connected from top to bottom, the upper tank body is positioned above the lower tank body, the lower tank body is positioned between an input pipeline horizontal section and a mounting shell II, a butt joint pipeline I for connecting and connecting the lower tank body and the input pipeline horizontal section is arranged between the lower tank body and the input pipeline horizontal section, a butt joint pipeline pipe for connecting and connecting the lower tank body and the mounting shell II is arranged between the lower tank body and the input pipeline horizontal section, the butt joint pipeline I and the butt joint pipeline II are coaxial with the input pipeline horizontal section and are arranged in an equal diameter mode, and the butt joint;

the second-stage drying mechanism also comprises an air blower which is arranged below the suspension tank and is fixedly connected with the mounting frame, the output end of the air blower is communicated with the lower end of the lower tank body through a pipeline, and the pipeline is provided with a heater for heating air flowing through the pipeline, the lower end of the lower tank body is provided with a conical structure, the size of an opening formed by the conical surface is gradually increased from bottom to top, the upper opening of the lower tank body is coaxially provided with a ring-shaped first guide plate, a rectangular second guide plate for connecting the first guide plate and the inner wall of the lower tank body is arranged between the first guide plate and the inner wall of the lower tank body, the second guide plate is vertically arranged in the height direction and radially arranged along the first guide plate in the width direction, a plurality of second guide plates are arranged in an array manner along the circumferential direction of the first guide plate, the first butt joint pipeline is communicated with the inner circular surface of the first guide plate, and the second butt joint pipeline is communicated with the inner circular surface of the second guide plate;

the secondary drying mechanism further comprises a vertically arranged rectangular discharge channel, the side face, close to the top, of the discharge channel is communicated with the upper end of the upper tank body through a pipeline, an exhaust port which is opposite to the output end of the pipeline is formed in the discharge channel, a first sealing plate matched with the exhaust port and provided with a plurality of pores is arranged on the exhaust port, the bottom of the discharge channel is communicated with the cooling mechanism, the upper end of the upper tank body is provided with a conical structure, and the size of an opening of the conical surface is gradually reduced from bottom to top.

As a further optimization or improvement of the present solution.

The cooling mechanism comprises a rectangular cooling channel which is arranged obliquely below the discharge channel and is vertically arranged, a lead-in channel which is obliquely arranged and is used for connecting and communicating the upper end of the cooling channel and the output end of the discharge channel is arranged between the upper end of the cooling channel and the output end of the discharge channel, the lower end of the cooling channel is communicated with a lead-out channel which is obliquely arranged, the output end of the lead-out channel points to the stacking point, the cooling device comprises a cooling channel, a mounting cylinder, a sealing plate II, a fixing frame, a motor I, a cold air fan and a fan motor, wherein the mounting cylinder is axially and horizontally arranged on one side surface of the cooling channel, openings at two ends of the mounting cylinder are arranged and communicated with the cooling channel, a heat dissipation port communicated with the cooling channel is formed in one side surface of the cooling channel, which is away from the mounting cylinder, the opening of the heat dissipation port is provided with the sealing plate II which is matched with the heat dissipation port and is provided with a plurality of pores, the mounting cylinder is internally provided with;

fixed mounting has the V type of staggered arrangement to send out the board in the leading-in pipeline, and the opening of sending out the board arranges downwards along leading-in pipeline incline direction, leading-in pipeline up end has been seted up uncovered and uncovered department and has been set up in being used for carrying out the apron of density to it, can dismantle between apron and the leading-in pipeline and be connected the cooperation.

As a further optimization or improvement of the present solution.

The power driving part comprises a second motor fixedly arranged on the mounting frame and a power main shaft rotatably arranged on the mounting frame, the axial direction of an output shaft of the second motor and the axial direction of the power main shaft are both vertically arranged, the power main shaft movably penetrates through the first mounting shell to be coaxially and fixedly connected with the driving drive plate, a first belt transmission component used for connecting the first motor output shaft and the power main shaft and transmitting the power of the second motor output shaft to the power main shaft is arranged between the second motor output shaft and the power main shaft, a second belt transmission component used for connecting the first motor output shaft and the power main shaft and transmitting the power of the power main shaft to the connecting cylinder is arranged between the power main shaft and the connecting cylinder, the first belt transmission component;

the belt transmission assembly comprises a first driving belt wheel and a first driven belt wheel, wherein the first driving belt wheel and the first driven belt wheel are coaxially and fixedly sleeved on an output shaft of a second motor, the first driven belt wheel and the first driven belt wheel are arranged on a power main shaft, the first driving belt wheel and the first driven belt wheel are arranged between the first driving belt wheel and the first driven belt wheel and are used for connecting the first driving belt wheel and the first driven belt wheel, the diameter of the first driving belt wheel is smaller than that of the first driven belt wheel, the second belt transmission assembly comprises a second driving belt wheel and a second driven belt wheel, the second driving belt wheel and the second driven belt wheel are coaxially and fixedly sleeved on a connecting cylinder, the second driving belt.

Compared with the prior art, the grain drying device has the advantages of ingenious structure, simple principle, low cost and convenience in popularization and use, and adopts a two-stage drying procedure to dry grains, wherein the first stage is preheating, the second stage is drying, and the grains are overturned and suspended by the upward-blowing hot air until being discharged, so that the grains can be uniformly dried.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partial structural schematic diagram of the present invention.

Fig. 3 is a schematic structural diagram of a primary preheating mechanism.

Fig. 4 is a matching diagram of the primary preheating mechanism.

Fig. 5 is a partial structural schematic diagram of the primary preheating mechanism.

Fig. 6 is a partial cross-sectional view of a primary preheating mechanism.

Fig. 7 is a partial cross-sectional view of a primary preheating mechanism.

Fig. 8 is a connection diagram of the pipe chain conveying mechanism and the primary preheating mechanism and the secondary drying mechanism.

Fig. 9 is a schematic view of the internal structure of the pipe chain conveying mechanism.

Fig. 10 is a schematic structural view of the pipe chain conveying mechanism.

Fig. 11 is a schematic structural diagram of the secondary drying mechanism.

Fig. 12 is a partial structural schematic diagram of the secondary drying mechanism.

Fig. 13 is an internal structure diagram of the secondary drying mechanism.

Fig. 14 is a connection diagram of the cooling mechanism and the secondary drying mechanism.

Fig. 15 is a schematic view of the internal structure of the cooling mechanism.

Fig. 16 is a schematic view of the internal structure of the cooling mechanism.

Fig. 17 is a schematic structural view of a power drive part.

Labeled as:

100. a mounting frame;

200. a primary preheating mechanism; 201. preheating a funnel; 202. a sealing plate; 203. a feed hopper; 204. a connecting cylinder; 205a, a rotating plate I; 205b, a second rotating plate; 206. a guide plate; 207. a stirring shaft; 208. a conical cover; 209. preheating a rod;

300. a pipe chain conveying mechanism; 301. mounting a first shell; 302. mounting a second shell; 303. a transition duct; 304. an input pipe; 305. an active drive plate; 306. a driven drive plate; 307. a conveyor chain; 308. a conveying plate;

400. a secondary drying mechanism; 401. a suspension tank; 401a, putting the tank body; 401b, a lower tank body; 402. a blower; 403. a heater; 404. a discharge channel; 405. an exhaust port; 406a, a first guide plate; 406b, a second guide plate; 407a, butting a first pipeline; 407b, a second butting pipeline;

500. a cooling mechanism; 501. a cooling channel; 502. a lead-in conduit; 502a, a divergence plate; 502b, a cover plate; 503. Leading out the pipeline; 504. a heat dissipation port; 505. mounting the cylinder; 506. a fixed mount; 507. a first motor; 508. a cold air fan;

600. a power drive component; 601. a second motor; 602. a power spindle; 603. a first belt transmission assembly; 604. and a belt transmission assembly II.

Detailed Description

A grain dryer comprises a floor-type mounting frame 100, wherein a first-stage preheating mechanism 200, a pipe chain conveying mechanism 300, a second-stage drying mechanism 400, a cooling mechanism 500 and a power driving part 600 are fixedly mounted on the mounting frame 100, the input end of the pipe chain conveying mechanism 300 is communicated with the output end of the first-stage preheating mechanism 200, the output end of the pipe chain conveying mechanism is communicated with the input end of the second-stage drying mechanism 400, the output end of the second-stage drying mechanism 400 is communicated with the input end of the cooling mechanism 500, the output end of the cooling mechanism 500 inclines downwards and points to a stacking point, the first-stage preheating mechanism 200 is used for preheating grains, the pipe chain conveying mechanism 300 is used for conveying the preheated grains to the second-stage drying mechanism 400, the second-stage drying mechanism 400 is used for drying the preheated grains in an air suspension manner, the cooling mechanism 500 receives the dried grains and is used for cooling the grains, and, The pipe chain conveying mechanism 300 provides driving power.

In the process of drying the grains, a user pours the grains into the first-stage preheating mechanism 200 from the input end of the first-stage preheating mechanism 200, the first-stage preheating mechanism 200 preheats the grains, the grains are conveyed into the pipe chain conveying mechanism 300 after preheating, the pipe chain conveying mechanism 300 circularly and repeatedly operates and gradually conveys the grains to the second-stage drying mechanism 400, the second-stage drying mechanism 400 blows hot air from bottom to top and enables the preheated grains to be suspended and rolled and move towards the input end of the second-stage drying mechanism 400, in the process, the grains are uniformly dried, the dried grains enter the input end of the cooling mechanism 500 from the output end of the second-stage drying mechanism 400, the cooling mechanism 500 cools the dried grains, and finally the cooling mechanism 500 outputs the grains at the dry normal temperature to a stacking point.

The primary preheating mechanism 200 comprises a vertical preheating funnel 201 with openings at the upper and lower ends arranged, the opening size of the preheating funnel 201 is gradually increased from bottom to top along the vertical direction, a circular sealing plate 202 which can be disassembled and matched is coaxially and fixedly arranged at the large opening of the preheating funnel 201, a feeding funnel 203 is coaxially arranged above the sealing plate 202, the feeding funnel 203 is fixedly connected with the mounting rack 100, the opening size of the feeding funnel 203 is gradually increased from bottom to top, in order to connect the feeding funnel 203 with the preheating funnel 201, a connecting cylinder 204 with openings at the two ends arranged is coaxially penetrated on the sealing plate 202, the connecting cylinder 204 is in rotary connection and matching with the sealing plate 202, the top end of the connecting cylinder 204 is in butt connection with the opening at the lower end of the feeding funnel 203 and is in rotary connection and matching with the opening at the lower end of the feeding funnel 203, the bottom end of the connecting cylinder 204 extends into the preheating funnel, realize the preheating treatment of the grain.

Specifically, in order to uniformly preheat the grains introduced into the preheating hopper 201, a first rotating plate 205a is coaxially and fixedly sleeved on the outer circumferential surface of the bottom end of the connecting cylinder 204, a second rotating plate 205b with the same diameter as the first rotating plate 205a is coaxially arranged below the first rotating plate 205a, a rectangular guide plate 206 for connecting the first rotating plate 205a and the second rotating plate 205b is arranged between the first rotating plate 205a and the second rotating plate 205b, the width direction of the guide plate 206 is parallel to the axial direction of the connecting cylinder 204, an included angle between the length direction of the guide plate 206 and the radial direction of the second rotating plate 205b is an acute angle, the acute angle is larger than 15 degrees and smaller than 45 degrees, preferably, an included angle between the length direction of the guide plate 206 and the radial direction of the second rotating plate 205b is 30 degrees, one end of the guide plate 206 in the length direction is flush with the outer circumferential surface of the second rotating plate 205b, the other end of the guide plate is flush with the, the grain dropped between the first rotating plate 205a and the second rotating plate 205b is centrifugally moved by the rotation of the connecting cylinder 204, and uniformly sprinkled onto the inner wall of the preheating hopper 201 under the guidance of the guide plate 206.

More specifically, in order to avoid the blockage of the grains in the feeding funnel 203 and the connecting cylinder 204, a stirring shaft 207 is coaxially arranged in the connecting cylinder 204, the lower end of the stirring shaft 207 and the two rotating plates 205b are fixedly connected, and the upper end of the stirring shaft 207 extends into the feeding funnel 203, so that the grains can smoothly fall into the connecting cylinder 204 from the feeding funnel 203 through the stirring of the stirring shaft 207.

In order to carry out preheating treatment to the grain that the centrifugation was spilt on preheating the funnel 201 inner wall, the outside fixed cover of preheating funnel 201 is equipped with the toper cover 208 rather than matching, inlay on the inner wall of toper cover 208 and be equipped with the preheating rod 209 of laminating mutually with preheating funnel 201, preheating rod 209 is used for generating heat and with heat transfer to preheating funnel 201 on, preheating rod 209 is laminated to its bottom by the top of preheating funnel 201, preheating funnel 201 is made for the material that the heat conductivility is good, in order to promote the effect of preheating, preheating rod 209 is provided with a plurality ofly and arranges along preheating funnel 201 place circumferencial direction array.

In the working process of the primary preheating mechanism 200, a user pours grains into the preheating funnel 201, the power driving part 600 drives the connecting cylinder 204 to rotate around the axial axis of the connecting cylinder, the grains fall between the first rotating plate 205a and the second rotating plate 205b through the connecting cylinder 204 under the action of self gravity, meanwhile, the connecting cylinder 204 drives the first rotating plate 205a and the second rotating plate 205b to rotate synchronously, so that the grain positioned between the first rotating plate 205a and the second rotating plate 205 generates centrifugal motion, and uniformly sprinkled on the inner wall of the preheating hopper 201 under the guiding action of the guiding plate 206, the grains will slide from the top of the inner wall of the preheating hopper 201 to the bottom thereof, in the process, the preheating rod 209 generates heat and transfers the heat to the preheating funnel 201, the preheating funnel 210 performs uniform preheating treatment on the grains rolling down along the interior of the preheating funnel 210, and the preheated grains enter the input end of the pipe chain conveying mechanism 300 from the output end of the preheating funnel 210.

The pipe chain conveying mechanism 300 comprises a first mounting shell 301 and a second mounting shell 302 which are fixedly connected with the mounting frame 100 and are sealed, the first mounting shell 301 and the second mounting shell 301 are coplanar and are arranged at intervals, the first mounting shell 301 and the second mounting shell 302 are far away from one end face and are both arranged into an arc-shaped face, the first mounting shell 301 and the second mounting shell 302 are close to one end face and are both provided with rectangular mounting planes which are vertically arranged in the width direction, one ends of the two mounting planes in the length direction are provided with transition pipelines 304 for connecting and connecting the first mounting shell 301 and the second mounting shell 302, one ends of the mounting planes on the first mounting shell 301, which are far away from the transition pipelines 304 in the length direction, are provided with T-shaped tee input pipelines 304, the input pipelines 304 comprise horizontal sections and vertical sections which are mutually communicated, the axial direction of the horizontal sections of the input pipelines 304 is parallel to the axial direction of the transition pipelines 303, the diameters, one end of the horizontal section of the input pipeline 304 is connected and communicated with the first mounting shell 301, the other end of the horizontal section of the input pipeline is connected and communicated with the second mounting shell 302 through the second-stage drying mechanism 400, and the input end of the second-stage drying mechanism 400 is located between the input pipeline 304 and the second mounting shell 302.

In order to convey the preheated grains flowing into the input pipeline 304 to the input end of the secondary drying mechanism 400, the pipe chain conveying mechanism 300 further comprises a driving dial 305 rotatably arranged in the first mounting shell 301 and a driven dial 306 rotatably arranged in the second mounting shell 302, the axial directions of the driving dial 305 and the driven dial 306 are both parallel to the axial direction of the connecting cylinder 204, a conveying chain 307 for connecting the driving dial 305 and the driven dial 306 is arranged between the driving dial 305 and the driven dial 306, the conveying chain 307 is engaged with the driving dial 305 and the driven dial 306 and is used for transmitting the power of the driving dial 305 to the driven dial 306, the conveying chain 307 sequentially bypasses the driving dial 305, passes through the horizontal section of the input pipeline 304, the input end of the secondary drying mechanism 400, bypasses the driven dial 306 and passes through the transition channel 303 to form a closed circulation loop, and a circular conveying plate 308 matched with the transition pipeline 303 is arranged on the conveying chain 307, the conveying plates 308 are provided in a plurality of numbers and are arranged at equal intervals along the circulating running direction of the conveying chain 307, and by driving the conveying chain 307 to run in the counterclockwise direction, the grains in the vertical section of the input pipeline 304 are conveyed into the secondary drying mechanism 400 through the horizontal pipes thereof.

During the operation of the pipe chain conveying mechanism 300, the preheated grains will slide to the horizontal section through the vertical section of the input pipeline 304, at this time, the power driving part 600 transmits power to the driving drive plate 305 and drives the driving drive plate 305 to rotate counterclockwise, the driving drive plate 305 and the driven drive plate 306 are matched with each other, so that the conveying chain 307 rotates counterclockwise circularly, the conveying chain 307 drives the conveying plate 308 to operate synchronously, the conveying plate 308 pushes the preheated grains into the input end of the secondary drying mechanism 400, and then the preheated grains are subjected to gas suspension drying treatment by the secondary drying mechanism 400.

A material storage cavity is formed between two adjacent conveying plates 308, the pipe chain conveying mechanism 300 receives the preheated grains and temporarily stores the grains in the material storage cavity, and obviously, the material storage cavity can also realize the function of conveying the grains quantitatively.

The conveying chain 307 is provided with an annular chain which is positioned between two adjacent conveying plates 308 and is positioned at the center, and a plurality of teeth protruding outwards are arrayed in the circumferential direction of the driving drive plate 305/the driven drive plate 306; a part of the conveying chain 307 matched with the driving drive plate 305/driven drive plate 306, wherein the conveying plates 308 are positioned in a groove formed between two adjacent teeth, and the tip parts of the teeth are embedded into an annular chain between two adjacent conveying plates 308; the endless chain is pulled by the teeth to provide a stable driving force to the conveyor chain 307.

The secondary drying mechanism 400 comprises a vertically arranged suspension tank 401, the axial direction of the suspension tank 401 is parallel to the axial direction of the preheating funnel 201, the suspension tank 401 is composed of an upper tank body 401a and a lower tank body 401b which are fixedly connected up and down, the upper tank body 401a is positioned above the lower tank body 401b, the lower tank body 401a is positioned between the horizontal section of the input pipeline 304 and the second mounting shell 302, in order to receive the preheated grains output by the horizontal section of the input pipeline 304, a first butt joint pipeline 407a for connecting and communicating the lower tank body 401b and the horizontal section of the input pipeline 304 is arranged between the lower tank body 401b and the horizontal section of the input pipeline 304, a second butt joint pipeline 407b for connecting and communicating the lower tank body 401b and the second installation shell 302 is arranged between the lower tank body 401b and the second installation shell 302, the first butt joint pipeline 407a and the second butt joint pipeline 407b are coaxial with the horizontal section of the input pipeline 304 and are arranged in an equal diameter mode, and the first butt joint pipeline 407a and the second butt joint pipeline 407b are arranged at intervals.

Specifically, in order to perform air suspension drying on the grains entering the suspension tank 401, the secondary drying mechanism 400 further includes an air blower 402 disposed below the suspension tank 401 and fixedly connected to the mounting frame 100, an output end of the air blower 402 is connected to a lower end of the lower tank 401b through a pipe, a heater 403 is disposed on the pipe for heating air flowing through the lower tank, in order to enable the hot air entering the suspension tank 401 to uniformly distribute and flow from bottom to top, a lower end of the lower tank 401b is disposed in a tapered structure, an opening formed by the tapered surface is gradually enlarged from bottom to top, an annular first guide plate 406a is coaxially disposed in the opening at the upper end of the lower tank 401b, a rectangular second guide plate 406b for connecting the first guide plate 406a and the inner wall of the lower tank 401b is disposed between the first guide plate 406a and the inner wall of the lower tank 401b, and the second guide plate 406b is vertically disposed in the height direction, The width direction is arranged along the radial direction of the first guide plate 406a, the second guide plates 406b are provided with a plurality of guide plates and are arranged in an array mode along the circumferential direction where the first guide plates 406a are located, the first butt joint pipelines 407b are communicated with the inner circular surface of the first guide plates 406a, the second butt joint pipelines 407b are communicated with the inner circular surface of the first guide plates 406a, and hot air is continuously blown into the suspension tank 401 from bottom to top to achieve air suspension drying of grains.

More specifically, in order to output hot air and dried grain together, the second-stage drying mechanism 400 further comprises a vertically arranged rectangular discharge channel 404, the discharge channel 404 is communicated with the upper end of the upper tank body 401a through a pipeline, an exhaust port 405 which is opposite to the pipeline output end is formed in the discharge channel 404, a first seal plate matched with the exhaust port 405 and provided with a plurality of pores is arranged on the exhaust port 405, the bottom of the discharge channel 404 is communicated with the cooling mechanism 500, the grain in the suspension tank 401 is gathered together vertically upwards along with the hot air and enters the discharge channel 404, and the opening size of the upper end of the upper tank body 401a is gradually reduced from bottom to top.

In the working process of the secondary drying mechanism 400, the air blower 402 and the heater 403 are started and matched with each other to blow hot air into the suspension tank 401, the hot air is guided out from bottom to top in the suspension tank 401 through the exhaust port 405, in the process, when the preheated grains are pushed to the middle of the first guide plate 406a through the conveying plate 308, the hot air overcomes the gravity action of the grains to enable the grains to be suspended and move slowly vertically upwards, in the process, the grains roll and turn over, the hot air carries out all-dimensional drying treatment on the grains, the dried grains enter the discharge channel 404 and are output to the cooling mechanism 500 through the discharge channel 404.

In order to cool the dried grains and avoid the grains from being accumulated, heated and deteriorated, the cooling mechanism 500 comprises a rectangular cooling channel 501 which is vertically arranged below the discharging channel 404, a guiding channel 502 which is obliquely arranged and used for connecting and connecting the upper end of the cooling channel 501 and the output end of the discharging channel 404 is arranged between the upper end of the cooling channel 501 and the output end of the discharging channel 404, the lower end of the cooling channel 501 is communicated with a guiding channel 503 which is obliquely arranged, the output end of the guiding channel 503 points to a stacking point, in order to cool the dried grains in the cooling channel 501, an installation cylinder 505 which is axially and horizontally arranged is arranged on one side surface of the cooling channel 501, two ends of the installation cylinder 505 are opened and arranged and are communicated with the cooling channel 501, a heat dissipation port 504 which is communicated with the installation cylinder 505 is arranged on the side surface of the cooling channel 501, and a second sealing plate which is matched with the heat dissipation, a fixing frame 506 is arranged in the mounting cylinder 505, a first motor 507 is fixedly mounted on the fixing frame 506, an output end of the first motor 507 is coaxially connected with a cold air fan 508, and the cold air fan 508 is arranged opposite to the heat dissipation opening 504.

Specifically, in order to enable dried grains to fall down uniformly in the cooling channel 501, V-shaped diffusion plates 502a which are arranged in a staggered manner are fixedly mounted in the introducing pipeline 502, openings of the diffusion plates 502a are arranged downwards along the inclined direction of the introducing pipeline 502, in order to facilitate installation of the diffusion plates 502a, an opening and an opening are formed in the upper end face of the introducing pipeline 502, a cover plate 502b used for carrying out density on the introducing pipeline 502 is arranged, and the cover plate 502b and the introducing pipeline 502 are detachably connected and matched.

In the working process of the cooling mechanism 500, the first motor 507 is started, the first motor 407 drives the cold air fan 508 to rotate and blow cold air into the cooling channel 501, the falling grains in the cooling channel 501 are cooled physically, heat is dissipated to the outside through the heat dissipation port 504, and the cooled grains fall to the stacking point under the guidance of the guide channel 503.

In order to transmit power to the connecting cylinder 204 and the driving dial 305, the power driving part 600 includes a second motor 601 fixedly mounted on the mounting frame 100, and a power spindle 602 rotatably mounted on the mounting frame 100, an axial direction of an output shaft of the second motor 601 and an axial direction of the power spindle 602 are both vertically arranged, the power spindle 602 movably penetrates through the first mounting shell 301 to be coaxially and fixedly connected with the driving dial 305, a first belt transmission assembly 603 used for connecting the output shaft of the second motor 601 and the power spindle 602 and used for transmitting power of the output shaft of the second motor 601 to the power spindle 602 is arranged between the output shaft of the second motor 601 and the power spindle 602, a second belt transmission assembly 604 used for connecting the output shaft of the second motor 601 and used for transmitting power of the power spindle 602 to the connecting cylinder 204 is arranged between the power spindle 602 and the connecting cylinder 204, the first belt transmission assembly.

Specifically, the first belt transmission assembly 603 includes a first driving pulley coaxially fixed on an output shaft of the second motor 601, a first driven pulley coaxially fixed on the power spindle 602, and a first belt arranged between the first driving pulley and the first driven pulley and used for connecting the first driving pulley and the first driven pulley, a diameter of the first driving pulley is smaller than a diameter of the first driven pulley, the second belt transmission assembly 604 includes a second driving pulley coaxially fixed on the power spindle 602, a second driven pulley coaxially fixed on the connecting cylinder 204, and a second belt arranged between the second driving pulley and the second driven pulley and used for connecting the second driving pulley and the second driven pulley, and a diameter of the second driving pulley is larger than a diameter of the second driven pulley.

In the working process of the power transmission part 600, the second motor 601 is started, the first belt transmission assembly 603 transmits the power of the second motor 602 to the power spindle 602 and drives the power spindle 602 to rotate counterclockwise, the power spindle 602 drives the driving dial 305 to rotate counterclockwise, so that the pipe chain conveying mechanism 300 operates, and meanwhile, the second belt transmission assembly transmits the power of the power spindle 602 to the connecting cylinder 204 and drives the connecting cylinder 204 to rotate counterclockwise, so that the primary preheating mechanism 200 operates.