CN107228557A - A kind of paddy hot air circulation removes chaff integrated device using dry - Google Patents

Abstract

The invention provides an integrated device for drying and removing bran by hot air circulation of rice, which includes a support frame, on which a slow-down drying bin and a first auger conveyor are mounted, and a funnel-shaped discharge bin is connected to the bottom of the slow-down drying bin , the bottom of the funnel-shaped discharge bin is horizontally provided with a second auger conveyor, the second auger conveyor communicates with the first auger conveyor, and the upper end of the slow-falling drying bin is provided with a receiving bin, and The receiving bin is located in the slow-falling drying bin, and the upper discharge port of the first auger conveyor is located above the receiving bin; the tops of multiple outlet chimneys are connected to a concentrating pipe, and the central part of the concentrating pipe An air guide pipe is arranged horizontally; the air guide pipe is connected to a temporary storage bin, and the left and right sides of the bottom of the receiving bin are provided with feeding ports, and the bottom of the receiving bin is vertically provided with an air supply pipe that is described in the slow-down drying bin The symmetrical arrangement has two slow-down components. The invention can slowly drop the paddy, and then fully dry it; and can reuse hot air tail gas, reducing enterprise cost.

Description

An integrated device for drying and removing bran by hot air circulation of rice

technical field

The invention relates to the technical field of crops, in particular to an integrated device for drying and removing bran by hot air circulation of rice.

Background technique

Moisture is an important chemical component in rice. Moisture in rice not only has a great influence on the physiology of seeds, but also has a great relationship with the processing and storage of rice and the value of rice. Therefore, the rice must be air-dried or dried after harvesting. If the rice is not dried when entering the warehouse, the rice grains will be soft and have a slight musty smell, so the rice will deteriorate and break, which is not conducive to storage; and the existing rice drying device is not sufficient for drying the rice. That is, if too much paddy is introduced into drying at one time, some paddy will retain moisture. In addition, some existing grain drying devices cannot reuse the dried tail gas, which also increases the production cost of the enterprise.

Contents of the invention

In order to overcome the above problems, the purpose of the present invention is to provide an integrated device for drying and removing bran by hot air circulation of rice. There is uneven air outlet in the drying chamber, which can fully drive the hot air in the drying chamber to improve the drying effect, and the rice bran in the rice can be screened out through the screening barrel, and the hot air tail gas can be reused to reduce the cost of the enterprise.

The present invention adopts the following scheme to realize: an integrated device for drying and removing bran by hot air circulation of rice, which is characterized in that it includes a support frame, on which a slow-down drying warehouse and a first auger conveyor are erected, and the slow-moving The lowering drying bin and the first auger conveyor are arranged side by side. The first auger conveyor is arranged vertically. There is a second auger conveyor, the second auger conveyor communicates with the first auger conveyor,

A discharge valve is arranged at the bottom of the first auger conveyor, and the discharge valve is located below the lower outlet of the first auger conveyor; a support is arranged beside the support frame, and fans are fixed on the support in turn. and a heating wire, a guide pipe is arranged laterally on the heating wire;

The upper end of the slow-falling drying bin is provided with a feed bin, and the receiving bin is located in the slow-down drying bin, the inner wall of the slow-down drying bin and the funnel-shaped outlet bin is a hollow structure, the two are connected, and the inner wall is opened There is an air outlet; the upper outlet of the first auger conveyor is located above the receiving bin; the left and right sides of the bottom of the receiving bin are provided with feeding ports, and the bottom of the receiving bin is vertically downward An air supply pipe is provided, and a plurality of air outlet holes are evenly distributed on the peripheral wall of the air supply pipe; the top of the air supply pipe is connected to the slow-down drying chamber through the ducts extending on both sides, and the duct and the The inner wall of the slow-down drying bin is connected, so that the wind of the air supply pipe is sprayed out by the inner wall of the inner wall and the inner wall of the funnel-shaped discharge bin through the conduit; the tail of the guide pipe is connected with the air supply pipe; A plurality of air outlet chimneys are arranged on the top of the descending dry bin; the tops of the plurality of air outlet chimneys are all connected to a concentrating pipe, and an air guide pipe is arranged transversely in the middle of the concentrating pipe; the lower side wall of the air guide pipe There is an opening, a cover plate is hinged on the opening, a hot gas settling assembly is arranged in the air duct, and the hot air settling assembly is located at the opening; the hot air settling assembly includes a first settling member and a second settling member, the The first sinker and the second sinker have the same structure, the first sinker is arranged on the inner wall of the upper layer of the air guide pipe, and the second sinker is arranged on the inner wall of the lower layer of the air guide pipe; the first sinker includes a bottom plate , a plurality of isolation plates are vertically arranged on the bottom plate, and each isolation plate is evenly distributed, the length of the isolation plates is two-thirds of the inner diameter of the air duct, each isolation plate of the first sinker is connected to the second The separation plates of the two settling parts are intersected, and there is a first space between the separation plates of the first settling part and the bottom plate of the second settling part, and the separation plate of the second settling part and the bottom plate of the first settling part There is a second space between them, so that the hot air can pass through the isolation plate of the first settling member and the separating plate of the second settling member, while the dust settles on the bottom plate of the second settling member; the tail of the air duct is provided with a Bell-mouthed tube, the bell-mouthed tube and a temporary storage bin;

A plurality of air holes are provided on the front side wall and the rear side wall of the temporary storage bin, and the trumpet pipe covers the plurality of air holes on the rear side wall, and the bottom of the temporary storage bin An auger bar is horizontally arranged, and a motor is arranged outside the rear side wall of the bottom of the temporary storage bin. The rotating shaft of the motor passes through the temporary storage bin and is connected with the auger bar. The front side wall is provided with a discharge tunnel, and the discharge tunnel is corresponding to the tail of the auger bar; the discharge tunnel of the temporary storage bin is fixed with a screening barrel, and the feed port of the screening barrel It is connected with the discharge tunnel, and the tail outlet of the screening barrel is connected with the first auger conveyor; the left and right side walls of the screening barrel are provided with through holes, and the left and right side walls The through holes are arranged correspondingly. A small fan is arranged on the through hole on the left side of the screening barrel, and a guide pipe is arranged on the through hole on the right side of the screening barrel inclined downward. There is a rice bran discharge pipe;

Two slow-down assemblies are arranged symmetrically in the slow-down drying bin, and the two slow-down assemblies are respectively located under the feed ports on the left and right sides of the receiving bin; the slow-down assembly allows the rice in the receiving bin to be fed slowly to the funnel-shaped discharge bin;

The slow lowering assembly includes a plurality of slow blanking plates, and a vibrator is provided at the bottom of each slow blanking plate; a plurality of air outlet holes are opened on each slow blanking plate; The material plate is a hollow structure, one end of the slow-feeding plate fixed on the side of the ventilation pipe communicates with the ventilation pipe, and one end of the slow-feeding plate fixed on the inner wall of the slow-falling drying chamber communicates with the inner wall of the slow-falling drying chamber to facilitate ventilation The wind of the pipe is blown out from the air outlet hole of the slow blanking plate; the end of the first slow blanking plate in the multiple slow blanking plates is fixed below the feeding port of the receiving bin, and the tail Located above the end of the second slow blanking plate; the end of the second slow blanking plate is fixed on the inner wall of the slow-falling drying bin, and the tail is above the end of the third slow blanking plate; the The end of the third slow blanking board is fixed on the outer wall of the air supply pipe, and the tail is positioned above the end of the fourth slow blanking board; the rest of the slow blanking boards are set by analogy; each of the slow blanking boards The tail of the tail forms an angle with the horizontal plane; a zigzag ladder is formed between the plurality of slow blanking plates; a cyclone type air outlet pipe is arranged between two adjacent slow blanking plates on the side of the air supply pipe, so that The cyclone air outlet pipe is connected with the air outlet branch pipe of the air supply pipe through a bearing; the surface of the cyclone air outlet pipe is provided with a spiral air outlet hole, so that the cyclone air outlet pipe can self-rotate due to the thrust of the gas when the air is out. .

Further, the rice bran discharge pipe is fixed on a support frame through a support rod.

Further, the angle is 30-60 degrees.

Further, a material holding frame is arranged below the discharge valve.

Further, an exhaust fan is arranged in the air outlet chimney.

Further, a handle is provided under the cover plate.

Further, two or more hot air settling components can be arranged in the air duct.

Further, the hot air settling assembly is detachably arranged in the air duct.

The advantages of the present invention are as follows: the present invention is provided with a slow-down drying bin, a first auger conveyor, and a second auger conveyor, and the paddy is repeatedly drawn into the slow-moving hopper by the first auger conveyor and the second auger conveyor. The drying operation is carried out in the lowering drying bin. There is an air supply pipe in the slow-down drying bin. The hot air is sent into the air-supply pipe through the fan and the electric heating wire to dry the rice. There are two slow-down drying bins in the slow-down drying bin. Assemblies, the slow-falling assembly includes a plurality of slow blanking plates, and a vibrator is provided at the bottom of each slow blanking plate; the tail of each slow blanking plate forms an angle with the horizontal plane; the multiple A zigzag ladder distribution is formed between the slow blanking plates. The paddy slides and falls from each slow blanking plate like this, because the hot blast in the air supply pipe flows into the small hole of the slow blanking plate, the rice on the slow blanking plate is dried while sliding like this, the present invention passes inner wall and slow falling plate The hollow structure and self-rotating air outlet pipe can overcome the phenomenon of uneven air outlet in the existing drying chamber, fully drive the hot air in the drying chamber, and improve the drying effect. The hot air can reach the air duct from the outlet chimney, and the air duct is equipped with a hot air settling assembly. After the hot air passes through the hot air settling assembly, the hot air settling assembly can settle the dust in the hot air and unload the dried rice at the same time. , Pour new rice that needs to be dried into the temporary storage bin. At this time, do not start the motor and auger rod in the temporary storage bin. The exhaust gas after settlement can dry the new rice in the temporary storage bin. After drying the new rice for a while, start the motor to transport the new rice in the temporary storage bin to the screening barrel. If there is rice bran in the rice at this time, the rice bran can be blown by the blowing effect of the small fan after passing through the screening barrel. The rice bran in the paddy is screened; then the paddy falls into the first auger conveyor, and the paddy is dried again in the slow-falling drying bin; thus realizing the electric heating The wind tail gas is used to pre-dry the rice in the temporary storage tank, and then cooperate with the rice bran air-blowing screening to carry out two pre-drying before entering the slow-falling drying warehouse, which greatly shortens the subsequent drying time and improves the cost of the enterprise. Cost of production.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the present invention;

Fig. 2 is a schematic view of the structure on the left side of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1 and Fig. 2, a rice hot air recycling integrated device for drying and removing bran according to the present invention includes a support frame 1 on which a slow-down drying bin 2 and a first auger conveyor are mounted. 3. The slow-down drying bin 2 and the first auger conveyor 3 are arranged side by side, the first auger conveyor 3 is arranged vertically, and a funnel-shaped discharge bin 21 is connected to the bottom of the slow-down drying bin 2 , A second auger conveyor 4 is horizontally arranged at the bottom of the funnel-shaped discharge bin 21, and the second auger conveyor 4 communicates with the first auger conveyor 3, so that the first auger conveyor passes through the first auger conveyor. , The second auger conveyor repeatedly pumps the rice into the slow-falling drying bin for drying operation.

A discharge valve 31 is arranged at the bottom of the first auger conveyor 3, and the discharge valve 31 is located below the lower outlet of the first auger conveyor 3; a support 5 is arranged beside the support frame 1, and the A fan 51 and a heating wire 52 are sequentially fixed on the support 5, and a guide pipe 53 is arranged horizontally on the heating wire 52; after the drying is completed, stop the operation of the first auger conveyor 3, and the second auger conveyor 4 continues to work Paddy can be discharged from the discharge valve 31.

The upper end of the slow-down drying bin 2 is provided with a receiving bin 22, and the receiving bin 22 is located in the slow-down drying bin 2, and the inner wall of the slow-down drying bin and the funnel-shaped outlet bin is a hollow structure 71, both connected, and the inner wall is provided with an air outlet (not shown in the figure); the upper outlet of the first auger conveyor 3 is located above the receiving bin 22; the left and right sides of the bottom of the receiving bin 22 are A feed port 23 is provided, and an air supply pipe 24 is vertically arranged downwards at the bottom of the receiving bin 22, and a plurality of air outlet holes 241 are evenly distributed on the peripheral wall of the air supply pipe 24; the top of the air supply pipe The conduit 72 that extends through both sides is connected to the slow-falling drying bin, and the conduit 72 communicates with the inner wall of the slow-falling drying bin, so that the wind of the air supply pipe passes through the conduit through the inner wall and the funnel-shaped discharge bin 21. The inner wall sprays out; the tail of the guide duct 53 is connected with the air supply pipe 24; the hot air blown by the fan and the heating wire can pass through the guide duct to the air supply pipe 24, and the hot blast passes through the air outlet from the air supply pipe 24 241 flows on the aperture of slow blanking plate 91 and the paddy on the slow blanking plate 91 is carried out drying operation;

The top of the slow-falling drying storehouse 2 is provided with a plurality of air outlet chimneys 25; the tops of the plurality of air outlet chimneys 25 are connected to a concentrating pipe 26, so that hot air can flow from the concentrating pipe 26 into the air guide pipe 6 , the middle part of the centralizing pipe 26 is provided with an air guide pipe 6 horizontally; the lower side wall of the air guide pipe 6 is provided with an opening (not shown), and a cover plate 61 is hingedly arranged on the opening, and the air guide pipe 6 is provided with a hot gas settling assembly 7, and the hot air settling assembly 7 is located at the opening; the cover plate 61 can be opened, and the hot air settling assembly 7 can be taken out; the hot air settling assembly 7 includes a first settling piece 71 and a second settling piece 72, the first settling member 71 and the second settling member 72 have the same structure, the first settling member 71 is arranged on the upper inner wall of the air guide pipe 6, and the second settling member 72 is arranged on the lower inner wall of the air guide pipe 6; The first sinker 71 includes a bottom plate 711, on which a plurality of isolation plates 712 are vertically arranged, and each isolation plate 712 is evenly distributed, and the length of the isolation plates 712 is three times the inner diameter of the air guide pipe 6. Two-thirds (that is, the insulation plate does not completely seal the hot gas settling assembly 7, so that the hot gas can pass between the first settling member 71 and the second settling member 72), each separating plate 712 of the first settling member 71 Intersect with each isolation plate of the second sinker 72, and leave a first space A between the isolation plate 712 of the first sinker 71 and the bottom plate 711 of the second sinker 72, the isolation of the second sinker 72 A second space B is left between the plate and the bottom plate of the first settling member, so that the hot air can pass through the separating plate of the first settling member 71 and the separating plate of the second settling member 72, while the dust settles on the separating plate of the second settling member. on the bottom plate; dust can stay on the first space A like this. Thereby, the dust in the hot air is filtered. The tail of the air guide pipe 6 is provided with a bell mouth pipe 62, and the bell mouth pipe 62 is connected with a temporary storage bin 8;

A plurality of air holes 81 are provided on the front side wall and the rear side wall of the temporary storage warehouse 8, and the bell mouth pipe 62 is covered on the plurality of air holes 81 on the rear side wall. An auger bar 82 is horizontally arranged in the bottom of the storehouse 8, and a motor 83 is arranged outside the bottom rear side wall of the temporary storehouse, and the rotating shaft of the motor 83 passes through the temporary storehouse 8 and the auger bar. 82 connection, the bottom front side wall of the temporary storage bin 8 is provided with a discharge tunnel 84, and the discharge tunnel 84 is corresponding to the afterbody of the auger bar 82; in the temporary storage bin 8, new The rice that needs to be dried does not start the motor and the auger bar in the temporary storage bin at this time, and the exhaust gas can dry the new paddy in the temporary storage bin 8. After the new paddy is dried for a while, the motor will be temporarily stored. The new rice in the warehouse 8 is transported to the screening barrel 85 and then sent to the slow-falling drying warehouse 2 through the first auger conveyor 4 and then dried, thereby realizing the utilization of the electric hot air tail gas and reducing the production cost of the enterprise. The discharge tunnel 84 of the temporary storage bin 8 is fixed with a screening material cylinder 85, the feed inlet of the screening material cylinder 85 is connected with the described discharge tunnel 84, and the tail discharge port of the screening material cylinder 85 is connected to the first An auger conveyor is connected in 3 phases; the left and right side walls of the screening barrel 85 are provided with through holes, and the through holes on the left and right side walls are correspondingly arranged, and the through holes on the left side of the screening barrel 85 A small blower fan 86 is provided, and a feed pipe 87 is inclined downward on the through hole on the right side of the screening barrel 8, and a rice bran discharge pipe 88 is arranged at the outlet of the feed pipe 87; There is rice bran, then when rice bran passes through screening barrel 85, the rice bran in the rice can be blown into the feed pipe 87 by a small fan, so that rice bran is screened out from rice bran discharge pipe 88. In addition, the small fan can also achieve the effect of drying the rice in the screening barrel.

Two slow-down assemblies 9 are symmetrically arranged in the slow-down drying bin 2, and the two slow-down assemblies 9 are respectively located below the feed ports 23 on the left and right sides of the receiving bin 22; the slow-down assembly 9 makes the receiving bin 22 The paddy inside can be sent slowly on the funnel-shaped discharge bin 21;

The slow lowering assembly 9 includes a plurality of slow blanking plates 91, and a vibrator 92 is provided at the bottom of each slow blanking plate 91; a plurality of air outlet holes are provided on each slow blanking plate; Each of the slow blanking plates described above is a hollow structure 71, wherein one end of the slow blanking plate fixed on the ventilation pipe side communicates with the ventilation pipe, and one end of the slow blanking plate fixed on the inner wall of the slow-falling drying bin is connected to the inner wall of the slow-falling drying bin. Connected, so that the wind of the ventilation pipe is blown out from the air outlet holes of the slow blanking plate; each of the slow blanking plates 91 is provided with a plurality of small holes (not shown) (the small holes are smaller than the size of rice, Paddy can not drop on aperture like this, and aperture only allows wind to pass through); 23, and the tail is above the end of the second slow blanking plate; the end of the second slow blanking plate is fixed on the inner wall of the slow-falling drying bin 2, and the tail is positioned at the end of the third slow blanking plate above the end; the end of the third slow blanking plate is fixed on the outer wall of the air supply pipe 24, and the afterbody is positioned above the end of the fourth slow blanking plate; the rest of the slow blanking plates are set by analogy; The rice can fall into the second slow feeding board from the first slow feeding board like this, fall into the 3rd slow feeding board from the second slow feeding board, and so on, so that the hot air is The rice on the slow blanking plate is dried; in addition, please continue to refer to Fig. 1, the present embodiment is provided with a cyclone type air outlet pipe 41 between two adjacent slow blanking plates on the air supply pipe 24 side, and the cyclone The air outlet pipe is connected with the air outlet branch pipe 43 of the air supply pipe through the bearing 42; the surface of the cyclone air outlet pipe 41 is provided with a spiral air outlet hole 44, so that when the cyclone air outlet pipe is exhausted, due to the thrust of the gas. Self-rotating; in this way, not only can the hot air be diffused evenly, but also the rotating blast can blow the rice on the slow feeding board, further improving the drying effect.

The tail of each slow blanking board 91 forms an angle A with the horizontal plane; the multiple slow blanking boards 91 form a zigzag ladder distribution. The smaller the angle, the slower the paddy slides down, allowing for a better drying operation.

In the present invention, the rice bran discharge pipe 88 is fixed on the support frame 1 through a support rod 89 . Paddy is directly poured into from receiving bin 22 in the practical application. An exhaust fan (not shown) is arranged in the air outlet chimney 25 . The exhaust fan can suck the hot blast of the slow-falling drying bin 2 like this, so that the air volume blown by the fan can flow into the slow-falling drying bin 2 more.

Further, the angle A is 30-60 degrees. Among them, the effect of 30 degrees is the best, and the paddy will slide down slowly and dry more fully. A material holding frame is arranged below the discharge valve; it is convenient to collect dried rice like this. A handle 611 is disposed under the cover plate 61 . The cover plate 61 can be opened or closed by operating the handle 611 . Two or more hot air settling assemblies 7 can be arranged in the air guide pipe 6 . Such a plurality of hot gas settling assemblies 7 can fully filter the dust in the hot gas. The hot air settling assembly 7 is detachably disposed in the air duct 6 .

In order to facilitate the control of the gas path; the two sides of the conduit extending on both sides are respectively provided with a spherical solenoid valve 73, which is used to open and close the gas path of the slow-falling drying bin and the inner wall of the funnel-shaped discharge bin; the outlet branch pipe 43 is provided with Solenoid valve 74.

In a word, the invention can fully stir the hot air in the drying bin, especially the self-rotating air outlet pipe, and can also turn the rice through the air, which greatly improves the drying effect and overcomes the uneven air flow in the existing drying tank. The slow lowering assembly of the invention includes a plurality of slow blanking plates, and a vibrator is provided at the bottom of each slow blanking plate; a plurality of small holes are opened on each slow blanking plate; each slow blanking plate The tail and the horizontal plane form an angle; the plurality of slow blanking plates form a zigzag ladder distribution. Paddy slides and falls from each slow blanking plate like this, because the hot blast in the air supply pipe flows on the aperture of slow blanking plate, the paddy on slow blanking plate like this dries while sliding, and the present invention can carry out paddy to paddy. Fully dry, and the drying effect is good, and the drying is more complete. The hot air can reach the air duct from the outlet chimney, and the air duct is equipped with a hot air settling assembly. After the hot air passes through the hot air settling assembly, the hot air settling assembly can settle the dust in the hot air and unload the dried rice at the same time. , Pour new rice that needs to be dried into the temporary storage bin. At this time, do not start the motor and auger rod in the temporary storage bin. The exhaust gas after settlement can dry the new rice in the temporary storage bin. After drying the new rice for a while, start the motor to transport the new rice in the temporary storage bin to the screening barrel. If there is rice bran in the rice at this time, the rice bran can be blown by the blowing effect of the small fan after passing through the screening barrel. The rice bran in the paddy is screened; then the paddy falls into the first auger conveyor, and the paddy is dried again in the slow-falling drying bin; thus realizing the electric heating The wind tail gas is used to reduce the production cost of the enterprise.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (8)

1. A rice hot air recycling integrated device for drying and removing bran, characterized in that: it includes a support frame, and the support frame is equipped with a slow-down drying bin and a first auger conveyor, and the slow-down drying bin and the first auger conveyor are mounted on the support frame. An auger conveyor is arranged side by side, the first auger conveyor is arranged vertically, a funnel-shaped discharge bin is connected to the bottom of the slow-down drying bin, and a second auger is arranged horizontally at the bottom of the funnel-shaped discharge bin Conveyor, the second auger conveyor communicates with the first auger conveyor, A discharge valve is arranged at the bottom of the first auger conveyor, and the discharge valve is located below the lower outlet of the first auger conveyor; a support is arranged beside the support frame, and fans are fixed on the support in turn. and a heating wire, a guide pipe is arranged laterally on the heating wire; The upper end of the slow-falling drying bin is provided with a feed bin, and the receiving bin is located in the slow-down drying bin, the inner wall of the slow-down drying bin and the funnel-shaped outlet bin is a hollow structure, the two are connected, and the inner wall is opened There is an air outlet; the upper outlet of the first auger conveyor is located above the receiving bin; the left and right sides of the bottom of the receiving bin are provided with feeding ports, and the bottom of the receiving bin is vertically downward An air supply pipe is provided, and a plurality of air outlet holes are evenly distributed on the peripheral wall of the air supply pipe; the top of the air supply pipe is connected to the slow-down drying chamber through the ducts extending on both sides, and the duct and the The inner wall of the slow-down drying bin is connected, so that the wind of the air supply pipe is sprayed out by the inner wall of the inner wall and the inner wall of the funnel-shaped discharge bin through the conduit; the tail of the guide pipe is connected with the air supply pipe; A plurality of air outlet chimneys are arranged on the top of the descending dry bin; the tops of the plurality of air outlet chimneys are all connected to a concentrating pipe, and an air guide pipe is arranged transversely in the middle of the concentrating pipe; the lower side wall of the air guide pipe There is an opening, a cover plate is hinged on the opening, a hot gas settling assembly is arranged in the air duct, and the hot air settling assembly is located at the opening; the hot air settling assembly includes a first settling member and a second settling member, the The first sinker and the second sinker have the same structure, the first sinker is arranged on the inner wall of the upper layer of the air guide pipe, and the second sinker is arranged on the inner wall of the lower layer of the air guide pipe; the first sinker includes a bottom plate , a plurality of isolation plates are vertically arranged on the bottom plate, and each isolation plate is evenly distributed, the length of the isolation plates is two-thirds of the inner diameter of the air guide pipe, each isolation plate of the first sinker is connected to the second The separation plates of the two settling parts are intersected, and there is a first space between the separating plate of the first settling part and the bottom plate of the second settling part, and the space between the separating plate of the second settling part and the bottom plate of the first settling part There is a second space between them, so that the hot air can pass through the isolation plate of the first settling member and the separating plate of the second settling member, while the dust settles on the bottom plate of the second settling member; the tail of the air duct is provided with a Bell-mouthed tube, the bell-mouthed tube and a temporary storage bin; A plurality of air holes are provided on the front side wall and the rear side wall of the temporary storage bin, and the trumpet pipe covers the plurality of air holes on the rear side wall, and the bottom of the temporary storage bin An auger bar is horizontally arranged, and a motor is arranged outside the rear side wall of the bottom of the temporary storage bin. The rotating shaft of the motor passes through the temporary storage bin and is connected with the auger bar. The front side wall is provided with a discharge tunnel, and the discharge tunnel is corresponding to the tail of the auger bar; the discharge tunnel of the temporary storage bin is fixed with a screening barrel, and the feed port of the screening barrel It is connected with the discharge tunnel, and the tail outlet of the screening barrel is connected with the first auger conveyor; the left and right side walls of the screening barrel are provided with through holes, and the left and right side walls The through holes are arranged correspondingly. A small fan is arranged on the through hole on the left side of the screening barrel, and a guide pipe is arranged on the through hole on the right side of the screening barrel inclined downward. There is a rice bran discharge pipe; Two slow-down assemblies are arranged symmetrically in the slow-down drying bin, and the two slow-down assemblies are respectively located under the feed ports on the left and right sides of the receiving bin; the slow-down assembly allows the rice in the receiving bin to be fed slowly to the funnel-shaped discharge bin; The slow lowering assembly includes a plurality of slow blanking plates, and a vibrator is provided at the bottom of each slow blanking plate; a plurality of air outlet holes are opened on each slow blanking plate; The material plate is a hollow structure, one end of the slow-feeding plate fixed on the side of the ventilation pipe communicates with the ventilation pipe, and one end of the slow-feeding plate fixed on the inner wall of the slow-falling drying chamber communicates with the inner wall of the slow-falling drying chamber to facilitate ventilation The wind of the pipe is blown out from the air outlet hole of the slow blanking plate; the end of the first slow blanking plate in the multiple slow blanking plates is fixed below the feeding port of the receiving bin, and the tail Located above the end of the second slow blanking plate; the end of the second slow blanking plate is fixed on the inner wall of the slow-falling drying bin, and the tail is above the end of the third slow blanking plate; the The end of the third slow blanking board is fixed on the outer wall of the air supply pipe, and the tail is positioned above the end of the fourth slow blanking board; the rest of the slow blanking boards are set by analogy; each of the slow blanking boards The tail of the tail forms an angle with the horizontal plane; a zigzag ladder is formed between the plurality of slow blanking plates; a cyclone type air outlet pipe is arranged between two adjacent slow blanking plates on the side of the air supply pipe, so that The cyclone air outlet pipe is connected with the air outlet branch pipe of the air supply pipe through a bearing; the surface of the cyclone air outlet pipe is provided with a spiral air outlet hole, so that the cyclone air outlet pipe can self-rotate due to the thrust of the gas when the air is out. . 2 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , wherein the rice bran discharge pipe is fixed on a support frame through a support rod. 3 . 3 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , wherein the angle is 30-60 degrees. 4 . 4 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , characterized in that: a material holding frame is arranged below the discharge valve. 5 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , wherein an exhaust fan is arranged in the air outlet chimney. 6 . 6 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , wherein a handle is arranged under the cover plate. 7 . 7 . The integrated device for drying and removing bran by hot air circulation of rice according to claim 1 , wherein two or more hot air settling components can be arranged in the air guide pipe. 8 . 8 . The integrated device for hot air recycling, drying and bran removal of rice according to claim 1 , wherein the hot air settling assembly is detachably arranged in the air duct. 9 .