Continuous dryer
By combining multi-stage hot air drying sections and cold air drying sections, the problem of uneven drying in existing continuous dryers is solved, achieving uniform and efficient drying of grains, and making it suitable for processing a variety of grains.
Patent Information
- Application Number
- CN202423283156.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing continuous dryers are inadequate in terms of drying uniformity and efficiency, resulting in uneven grain drying and making it difficult to meet the needs of large-scale production and storage.
The design adopts a combination of multi-stage hot air drying sections and cold air drying sections. Each hot air drying section includes an upper drying section and a lower tempering section. Through the multi-stage hot air drying and tempering process, combined with the use of material discharge control components and cold air drying sections, the grain is dried evenly.
It achieves uniform and efficient drying of grains, avoiding localized over-drying or over-wetting, thus improving drying efficiency and quality. It is suitable for processing various grains such as wheat, corn, and rice.
Smart Images
Figure CN223663693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural machinery technical field especially a continuous dryer. BACKGROUND
[0002] In the process of grain processing and storage, drying is a crucial link, especially for the high humidity of the grain after harvest, such as wheat, corn, rice, etc. Effective drying can not only prevent grain from mildewing and deteriorating, but also improve the storage stability and quality of grain. Traditional grain drying methods mostly use natural airing or fixed drying equipment, but these methods have many shortcomings.
[0003] Specifically, although natural airing is low in cost, it is greatly limited by weather conditions, has a long drying period, and is easily polluted by dust, insects, etc., affecting the sanitary quality of grain. Although fixed drying equipment improves drying efficiency to some extent, it often has problems such as uneven drying and large equipment footprint. Especially for large-scale grain production or storage bases, the processing capacity and effect of fixed drying equipment often cannot meet the demand.
[0004] In recent years, with the development of agricultural mechanization, continuous dryers have gradually emerged. This kind of dryer sends the grain to be dried into the dryer through continuous conveying, and after a series of drying and recovery processes, the ideal drying effect is achieved. However, the existing continuous dryers still have some deficiencies in design, for example, most of the current continuous dryers use triangular plates, then hot air heating, which can easily lead to good drying near the hot air and poor drying far from the hot air; uniform distribution using hot air pipes in the middle, which leads to uneven drying in the corners of the dryer or places where hot air cannot reach.
[0005] Therefore, it is necessary to provide a continuous dryer to solve or at least alleviate the above-mentioned defects. CONTENT OF THE UTILITY MODEL
[0006] The main purpose of the utility model is to provide a continuous dryer to solve the technical problems of low drying uniformity and general drying quality in the prior art.
[0007] To achieve the above-mentioned purpose, the utility model provides a continuous dryer, which comprises a dryer main body, a grain inlet assembly and a discharge assembly, wherein,
[0008] The top of the dryer main body is provided with a grain inlet, and the bottom of the dryer main body is provided with a grain outlet.
[0009] The grain inlet assembly is used for inputting the grain to be dried into the grain inlet.
[0010] The dryer main body comprises a cold air drying section and at least one hot air drying section, the hot air drying section is located above the cold air drying section, each hot air drying section comprises an upper drying section and a lower tempering section, wherein the grain is dried in the upper drying section of the i-th hot air drying section and then enters the lower tempering section of the i-th hot air drying section, after being tempered in the lower tempering section of the i-th hot air drying section, the grain enters the upper drying section of the i+1-th hot air drying section, after being tempered in the lower tempering section of the N-th hot air drying section, the grain enters the cold air drying section, after being cooled and dried in the cold air drying section, the grain enters the discharge assembly through the grain outlet; wherein 1≤i≤N-1, i and N are positive integers;
[0011] The discharge assembly discharges the dried grain.
[0012] Preferably, each upper drying section comprises a first drying bin, a hot air pipe assembly and a grain control assembly, wherein the hot air pipe assembly comprises a first hot air pipe assembly arranged in the first drying bin and a second hot air pipe assembly connected to the outer wall of the dryer main body, a first air passage is formed in the wall of the first hot air pipe assembly and communicates with the first drying bin, the air inlet of the first hot air pipe assembly and the air outlet of the second hot air pipe assembly are communicated, the air outlet of the first hot air pipe assembly and the outside of the dryer main body are communicated, and the air inlet of the second hot air pipe assembly and an external hot air source are communicated.
[0013] The grain control assembly has an open position and a closed position, wherein when in the open position, the grain in the first drying bin of the i-th hot air drying section enters the lower tempering section of the i-th hot air drying section, and after being tempered in the lower tempering section of the i-th hot air drying section, the grain enters the first drying bin of the i+1-th hot air drying section; when in the closed position, the grain stays in the first drying bin.
[0014] Preferably, the first hot air pipe assembly comprises two layers of first hot air pipe rows arranged vertically, each first hot air pipe row comprises a plurality of first hot air pipes uniformly arranged along the width direction of the dryer main body, and a first stacking space is formed between two adjacent first hot air pipes along the width direction.
[0015] Preferably, the material dropping control assembly comprises a horizontal driving cylinder and a first cross baffle, a first through hole is arranged on a wall of the first drying bin for the driving end of the horizontal driving cylinder to pass through, the width of the first cross baffle is smaller than the width of the first drying bin, the first cross baffle is connected with the driving end of the horizontal driving cylinder and moves synchronously with the driving end of the horizontal driving cylinder, and the first cross baffle is provided with a first material dropping channel corresponding to the first material stacking space.
[0016] Preferably, the material dropping control assembly further comprises a dead zone material dropping valve plate, the dead zone material dropping valve plate is hinged to the inner wall of the first drying bin, and the dead zone material dropping valve plate is located directly above the driving end of the horizontal driving cylinder; when the first cross baffle is in the open position, the dead zone material dropping valve plate is in a vertical state, so that the first material dropping channel and the first material stacking space are arranged in a front-to-back manner; when the first cross baffle is in the closed position, the dead zone material dropping valve plate is in an inclined state, and the dead zone material dropping valve plate covers the corresponding first material dropping channel, so that the grain stays in the first drying bin.
[0017] Preferably, the cold air drying section comprises a second drying bin, a cold air pipe assembly and a material discharging control assembly; the cold air pipe assembly comprises a first cold air pipe assembly arranged in the second drying bin and a second cold air pipe assembly connected to the outer wall of the drying machine main body; a second air passing hole is arranged on the wall of the first cold air pipe assembly and communicates with the second drying bin; the air inlet of the first cold air pipe assembly and the air outlet of the second cold air pipe assembly are communicated; the air outlet of the first cold air pipe assembly and the outside of the drying machine main body are communicated; and the air inlet of the second cold air pipe assembly and an external cold air source are communicated.
[0018] The material discharging control assembly has an open position and a closed position; when the material discharging control assembly is in the open position, the grain in the second drying bin enters the material discharging assembly through the grain outlet; and when the material discharging control assembly is in the closed position, the grain stays in the second drying bin.
[0019] Preferably, the first cold air pipe assembly comprises a plurality of first cold air pipes which are uniformly and spacedly arranged along the width direction of the drying machine main body; and a second material stacking space is formed between two adjacent first cold air pipes along the width direction.
[0020] Preferably, the material discharging control assembly comprises a driving mechanism, a crank slider mechanism and a second cross baffle; the crank slider mechanism is connected with the driving mechanism; the second drying bin is provided with a second through hole matched with the crank slider mechanism; and the width of the second cross baffle is smaller than the width of the second drying bin.
[0021] The second cross baffle is provided with a second discharging channel corresponding to the second stacking space, the second cross baffle is connected with the crank slider mechanism and reciprocates in the transverse direction following the crank slider mechanism, so as to control the communication width between the second discharging channel and the second stacking space, and then adjust the grain discharging amount.
[0022] Preferably, the flattening assembly comprises a driving motor, a speed reduction mechanism, a first rotating main shaft, a second rotating main shaft and a scraper, wherein,
[0023] The input end of the speed reduction mechanism is connected with the output end of the driving motor, the first rotating main shaft is rotatably connected with the dryer main body, and the upper end of the first rotating main shaft is connected with the output end of the speed reduction mechanism;
[0024] The second rotating main shaft is connected with the first rotating main shaft and moves synchronously with the first rotating main shaft, and the scraper is connected with the bottom of the second rotating main shaft and moves synchronously with the second rotating main shaft, so as to flatten the grain located at the top of the dryer main body.
[0025] Preferably, the dust removal fan is further provided, the air inlet end of the dust removal fan is communicated with the top of the inner cavity of the dryer main body, and the air outlet end of the dust removal fan is communicated with the outside of the dryer main body.
[0026] Compared with the prior art, the utility model has the beneficial effects that:
[0027] The utility model provides a continuous dryer, including dryer main body, grain feeding component and discharge assembly, dryer main body includes cold -drying section and at least one hot -air drying section, hot -air drying section is located above cold -drying section, and each hot -air drying section includes upper drying section and lower slow -recovery section, and the grain is entered after drying through the upper drying section of the i hot -air drying section and enters the lower slow -recovery section of the i hot -air drying section, and the grain is entered after heat preservation through the lower slow -recovery section of the i hot -air drying section and enters the upper drying section of the i+1 hot -air drying section, and the grain is entered after heat preservation through the lower slow -recovery section of the N hot -air drying section and enters the cold -drying section, and the grain is entered through the grain outlet after cooling and drying through the cold -drying section and enters the discharge assembly, and the discharge assembly discharges the grain after drying.
[0028] The application can guarantee the drying uniformity of dried crops and the grain flowability, improve the uniformity of grain drying, realize continuous and efficient drying of the grain through the combination of the multi-stage hot air drying section and the cold air drying section, improve the drying efficiency and ensure the drying quality of the grain, make the drying quality of the grain more uniform through the joint action of the hot air and the recovery section, and avoid the local over-drying or over-wetting of the grain during the drying process, and the drying machine can be suitable for the drying treatment of various grains such as wheat, corn, rice and the like. This helps to meet the needs of different users, improve the utilization rate of the equipment and economic benefits. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.
[0030] Figure 1 It is an overall structure schematic diagram under the first visual angle in an embodiment of the present application.
[0031] Figure 2 It is an overall structure schematic diagram under the second visual angle in an embodiment of the present application.
[0032] Figure 3 It is an overall structure schematic diagram under the third visual angle in an embodiment of the present application.
[0033] Figure 4 It is an overall structure schematic diagram under the fourth visual angle in an embodiment of the present application.
[0034] Figure 5 It is an overall structure schematic diagram under the fifth visual angle in an embodiment of the present application.
[0035] Figure 6 It is an enlarged schematic diagram of A in Figure 1
[0036] Figure 7 It is an enlarged schematic diagram of B in Figure 4
[0037] Figure 8 It is an enlarged schematic diagram of C in Figure 1
[0038] Figure 9 It is a structure schematic diagram of the dead zone discharging valve plate in the closed position in an embodiment of the present application.
[0039] Figure 10 Fig. 1 is a structural schematic view of the dead zone blanking valve plate in the open position in an embodiment of the present application.
[0040] The purposes, functional features and advantages of the present application will be further described in conjunction with embodiments and with reference to the drawings.
[0041] Explanation of reference numerals:
[0042] 10, dryer main body; 110, grain outlet; 120, hot air drying section; 121, upper drying section; 1211, first drying bin; 1212, hot air pipe assembly; 12121, first hot air pipe assembly; 12122, first air passing hole; 12123, first material stacking space; 12124, second hot air pipe assembly; 1213, blanking control assembly; 12131, horizontal drive cylinder; 12132, first horizontal baffle; 12133, first blanking passage; 12134, dead zone blanking valve plate; 122, lower buffering section; 130, cold air drying section; 131, second drying bin; 132, cold air pipe assembly; 1321, first cold air pipe assembly; 1322, second air passing hole; 1323, second cold air pipe assembly; 1324, second material stacking space; 133, blanking control assembly; 1331, drive mechanism; 1332, crank slider mechanism; 1333, second horizontal baffle; 1334, second blanking passage; 20, grain feeding assembly; 210, feeding elevator; 30, blanking assembly; 310, conveying belt assembly; 320, blanking elevator; 330, grain discharging pipe; 40, flattening assembly; 410, drive motor; 420, speed reduction mechanism; 430, first rotary main shaft; 440, second rotary main shaft; 450, scraper; 50, dust removal fan. DETAILED DESCRIPTION
[0043] It should be understood that the specific embodiments described herein merely exemplify the present application and do not limit the present application.
[0044] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as described in the drawings), and if the certain posture changes, the directional indications also change accordingly.
[0046] In addition, the description involving "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0047] Please refer to the attached Figures 1 to 10 The utility model provides a continuous dryer in an embodiment, including dryer main body 10, grain inlet subassembly 20 and discharge assembly 30, wherein,
[0048] The top of the dryer main body 10 is provided with a grain inlet (not shown in the figure), and the bottom of the dryer main body 10 is provided with a grain outlet 110;
[0049] The grain inlet subassembly 20 is used to input the grain to be dried into the grain inlet;
[0050] The dryer main body 10 includes a cold air drying section 130 and at least one hot air drying section 120, the hot air drying section 120 is located above the cold air drying section 130, each hot air drying section 120 includes an upper drying section 121 and a lower recovery section 122, wherein the grain is dried by the upper drying section 121 of the i-th hot air drying section 120 and then enters the lower recovery section 122 of the i-th hot air drying section 120, is cooled and dried by the lower recovery section 122 of the i-th hot air drying section 120 and then enters the upper drying section 121 of the i+1-th hot air drying section 120, the lower recovery section 122 of the N-th hot air drying section 120 is cooled and dried by the cold air drying section 130, and then enters the discharge assembly 30 through the grain outlet 110; wherein 1≤i≤N-1, i and N are positive integers;
[0051] The discharge assembly 30 discharges the dried grain.
[0052] Specifically, the grain to be dried is input into the top grain inlet of the dryer main body 10 through the grain input assembly 20. The grain first enters the hot air drying section 120, each hot air drying section 120 including an upper drying section 121 and a lower tempering section 122. The grain is subjected to the action of hot air in the upper drying section 121, and preliminary drying is performed. The dried grain enters the lower tempering section 122, where it is tempered to further evaporate the moisture inside the grain and prevent the grain from being damaged due to excessive drying. After passing through one hot air drying section 120, the grain enters the next hot air drying section 120, and the above process is repeated. This combination of multi-stage drying and tempering can ensure uniform and sufficient drying of the grain.
[0053] When the grain passes through the lower tempering section 122 of the last hot air drying section 120, it enters the cold air drying section 130. The cold air drying section 130 is mainly used for cooling the grain to achieve the required dryness and temperature before it is discharged. After being cooled and dried in the cold air drying section 130, the grain enters the discharge assembly 30 through the bottom grain outlet 110 of the dryer main body 10, and is finally discharged by the discharge assembly 30.
[0054] In the present application, the combination of multiple hot air drying sections 120 and cold air drying sections 130 can achieve continuous and efficient drying of the grain. This drying method not only improves the drying efficiency, but also ensures the drying quality of the grain. The combined action of hot air and tempering sections makes the drying quality of the grain more uniform, avoiding the occurrence of local over-drying or over-wetting during the drying process.
[0055] The dryer of the present application can be suitable for drying various grains such as wheat, corn, rice, etc. This helps to meet the needs of different users and improve the utilization rate and economic benefits of the equipment.
[0056] Further, the grain input assembly 20 can be a feed elevator 210, and the discharge assembly 30 can include a conveyor belt assembly 310, a discharge elevator 320, and a grain discharge pipe 330. The conveyor belt assembly 310 receives grain from the grain outlet 110, transports the grain to a certain height through the discharge elevator 320, and then discharges the grain through the grain discharge pipe 330 to realize loading.
[0057] As a preferred embodiment, each of the upper drying sections 121 comprises a first drying bin 1211, a hot air pipe assembly 1212, and a material dropping control assembly 1213. The hot air pipe assembly 1212 comprises a first hot air pipe assembly 12121 arranged in the first drying bin 1211 and a second hot air pipe assembly 12124 connected to the outer wall of the drying machine body 10. The wall surface of the first hot air pipe assembly 12121 is provided with a first air passing hole 12122 communicating with the first drying bin 1211. The air inlet of the first hot air pipe assembly 12121 and the air outlet of the second hot air pipe assembly 12124 are communicated. The air outlet of the first hot air pipe assembly 12121 and the outside of the drying machine body 10 are communicated. The air inlet of the second hot air pipe assembly 12124 and an external hot air source are communicated.
[0058] The material dropping control assembly 1213 has an open position and a closed position. When in the open position, the grain in the first drying bin 1211 of the i-th hot air drying section 120 enters the lower tempering section 122 of the i-th hot air drying section 120, is tempered in the lower tempering section 122 of the i-th hot air drying section 120, and then enters the first drying bin 1211 of the i+1-th hot air drying section 120. When in the closed position, the grain stays in the first drying bin 1211.
[0059] Specifically, the hot air pipe assembly 1212 comprises the first hot air pipe assembly 12121 arranged in the first drying bin 1211 and the second hot air pipe assembly 12124 connected to the outer wall of the drying machine body 10. The external hot air source sends hot air into the second hot air pipe assembly 12124 through the air inlet of the second hot air pipe assembly 12124, and then the hot air passes through the air outlet of the second hot air pipe assembly 12124 and is communicated with the air inlet of the first hot air pipe assembly 12121, so as to send the hot air into the first hot air pipe assembly 12121. The wall surface of the first hot air pipe assembly 12121 is provided with the first air passing hole 12122. The hot air enters the first drying bin 1211 through the first air passing hole 12122, dries the grain in the bin, and then the dried hot air is discharged to the outside of the drying machine body 10 through the air outlet of the first hot air pipe assembly 12121.
[0060] The blanking control assembly 1213 has an open position and a closed position. When the blanking control assembly 1213 is in the open position, the grain in the first drying bin 1211 of the i-th hot air drying section 120 can enter the lower cooling section 122 of the i-th hot air drying section 120 through the blanking port, in which the grain is subjected to heat preservation treatment to further evaporate the internal moisture of the grain and avoid damage to the grain due to excessive drying. After passing through the cooling section, the grain enters the first drying bin 1211 of the next hot air drying section 120 again to repeat the above drying process. When the blanking control assembly 1213 is in the closed position, the grain stays in the first drying bin 1211 and does not enter the lower cooling section 122, which helps to control the drying progress and ensure the drying quality.
[0061] Notably, the hot air uniformly enters the first drying bin 1211 through the first air passing holes 12122 on the wall of the first hot air pipe assembly 12121, ensuring uniform heating of the grain during drying and avoiding local over-drying or over-wetting. The blanking control assembly 1213 can flexibly control the blanking timing of the grain to ensure that the residence time and drying degree of the grain during drying meet the process requirements. The shape of the first air passing holes 12122 is preferably a fish scale-shaped hole.
[0062] Further, the first hot air pipe assembly 12121 includes two layers of first hot air pipe rows (not labeled in the figure) arranged vertically at intervals, each of which includes a plurality of first hot air pipes uniformly spaced in the width direction of the drying machine body 10, and adjacent two first hot air pipes in the width direction form a first stacking space 12123.
[0063] Specifically, the design of the multi-layer hot air pipe row increases the contact area between the hot air and the grain, allowing the hot air to more fully exchange heat with the grain, thereby improving the drying efficiency.
[0064] As a preferred embodiment, the material dropping control assembly 1213 comprises a horizontal driving cylinder 12131 and a first cross blocking plate 12132, the wall of the first drying bin 1211 is provided with a first through hole for the driving end of the horizontal driving cylinder 12131 to penetrate, the width of the first cross blocking plate 12132 is less than the width of the first drying bin 1211, the first cross blocking plate 12132 is connected with the driving end of the horizontal driving cylinder 12131 and moves synchronously with the driving end of the horizontal driving cylinder 12131, and the first cross blocking plate 12132 is provided with a first material dropping channel 12133 corresponding to the first material stacking space 12123, wherein, when the first cross blocking plate 12132 is in the open position, the first material dropping channel 12133 and the first material stacking space 12123 are arranged opposite to each other, and when the first cross blocking plate 12132 is in the closed position, the first material dropping channel 12133 and the first material stacking space 12123 are arranged staggered, so that the grain stays in the first drying bin 1211.
[0065] Specifically, the material dropping control assembly 1213 comprises a horizontal driving cylinder 12131 and a first cross blocking plate 12132, the wall of the first drying bin 1211 is provided with a first through hole for the driving end of the horizontal driving cylinder 12131 to penetrate, the horizontal driving cylinder 12131 is connected with the first cross blocking plate 12132 through the hole, the width of the first cross blocking plate 12132 is less than the width of the first drying bin 1211, so that when the first cross blocking plate 12132 moves, a space for dropping or blocking material can be left, when the driving end of the horizontal driving cylinder 12131 extends, the first cross blocking plate 12132 is driven to move horizontally, the first cross blocking plate 12132 is provided with a first material dropping channel 12133 corresponding to the first material stacking space 12123, and the shape and position of the first material dropping channel 12133 match the first material stacking space 12123. When the first cross blocking plate 12132 is in the open position, the first material dropping channel 12133 and the first material stacking space 12123 are arranged opposite to each other, and the grain can drop from the first drying bin 1211 to the lower relaxation section 122 through the channels, and when the first cross blocking plate 12132 is in the closed position, the first material dropping channel 12133 and the first material stacking space 12123 are arranged staggered, so that the grain is blocked by the first cross blocking plate 12132 and stays in the first drying bin 1211.
[0066] In this embodiment, the horizontal driving cylinder 12131 is accurately controlled, so that the first cross blocking plate 12132 can move accurately, thereby accurately controlling the dropping time of the grain.
[0067] As another preferred embodiment, the material dropping control assembly 1213 further comprises a dead zone material dropping valve plate 12134 which is hinged to the inner wall of the first drying bin 1211 and is located directly above the driving end of the horizontal driving cylinder 12131, wherein, in the open position, the dead zone material dropping valve plate 12134 is in a vertical state to make the first material dropping passage 12133 and the first material stacking space 12123 directly opposite, and in the closed position, the dead zone material dropping valve plate 12134 is in an inclined state to cover the corresponding first material dropping passage 12133 so that the grain stays in the first drying bin 1211.
[0068] In this embodiment, as shown in Figure 1 and Figure 6 In addition to the original horizontal driving cylinder 12131 and the first horizontal baffle plate 12132, the material dropping control assembly 1213 further comprises a dead zone material dropping valve plate 12134 which is hinged to the inner wall of the first drying bin 1211 and is allowed to switch between the vertical and horizontal states, and the dead zone material dropping valve plate 12134 is located directly above the driving end of the horizontal driving cylinder 12131 and forms a complementary material dropping control mechanism with the first horizontal baffle plate 12132.
[0069] As shown in Figure 6 Since the driving end of the horizontal driving cylinder 12131 has a movement stroke, in order to adapt to this movement stroke, a certain gap is reserved between the left end of the first horizontal baffle plate 12132 and the inner wall of the first drying bin 1211, and if this gap is not handled, the grain will directly fall, therefore, the dead zone material dropping valve plate 12134 is designed, and the dead zone material dropping valve plate 12134 and the first horizontal baffle plate 12132 jointly act to more reliably control the material dropping.
[0070] As a preferred embodiment, the cold air drying section 130 comprises a second drying bin 131, a cold air pipe assembly 132 and a material discharging control assembly 133, wherein the cold air pipe assembly 132 comprises a first cold air pipe assembly 1321 arranged in the second drying bin 131 and a second cold air pipe assembly 1323 connected to the outer wall of the drying machine main body 10, the wall surface of the first cold air pipe assembly 1321 is provided with a second air passing hole 1322 which communicates with the second drying bin 131, the air inlet of the first cold air pipe assembly 1321 and the air outlet of the second cold air pipe assembly 1323 are communicated, the air outlet of the first cold air pipe assembly 1321 and the outside of the drying machine main body 10 are communicated, and the air inlet of the second cold air pipe assembly 1323 and an external cold air source are communicated.
[0071] The discharge control assembly 133 has an open position and a closed position, wherein when in the open position, the grain located in the second drying bin 131 enters the discharge assembly 30 through the grain outlet 110; when in the closed position, the grain is blocked in the second drying bin 131.
[0072] Specifically, the cold air pipe assembly 132 includes a first cold air pipe assembly 1321 arranged in the second drying bin 131 and a second cold air pipe assembly 1323 connected to the outer wall of the drying machine main body 10. An external cold air source sends cold air into the second cold air pipe assembly 1323 through the air inlet of the second cold air pipe assembly 1323, and then the cold air passes through the air outlet of the second cold air pipe assembly 1323 and communicates with the air inlet of the first cold air pipe assembly 1321, so as to send the cold air into the first cold air pipe assembly 1321. The wall surface of the first cold air pipe assembly 1321 is provided with second air passing holes 1322, and the cold air or normal temperature air enters the second drying bin 131 through the second air passing holes 1322 to cool and dry the grain in the bin. The cooled cold air is discharged to the outside of the drying machine main body 10 through the air outlet of the first cold air pipe assembly 1321, completing a cold air circulation.
[0073] The discharge control assembly 133 has an open position and a closed position, and is used for controlling the discharge of the grain in the second drying bin 131. When the discharge control assembly 133 is in the open position, the grain located in the second drying bin 131 can enter the discharge assembly 30 through the grain outlet 110 and then be discharged from the drying machine. When the discharge control assembly 133 is in the closed position, the grain is blocked in the second drying bin 131 and cannot be discharged through the grain outlet 110.
[0074] Further, the first cold air pipe assembly 1321 includes a plurality of first cold air pipes uniformly and spacedly arranged along the width direction of the drying machine main body 10. Adjacent two first cold air pipes along the width direction are formed with a second material stacking space 1324.
[0075] Specifically, the first cold air pipes are uniformly and spacedly arranged along the width direction of the drying machine main body 10, which can ensure that the cold air is more uniformly distributed in the second drying bin 131.
[0076] As a preferred embodiment, the discharge control assembly 133 includes a driving mechanism 1331, a crank slider mechanism 1332 and a second cross baffle 1333. The crank slider mechanism 1332 is connected to the driving mechanism 1331. The second drying bin 131 is provided with a second through hole matched with the crank slider mechanism 1332. The width of the second cross baffle 1333 is smaller than the width of the second drying bin 131.
[0077] The second cross baffle 1333 is provided with a second discharging channel 1334 corresponding to the second stacking space 1324, the second cross baffle 1333 is connected with the crank slider mechanism 1332 and reciprocates in the transverse direction to control the communication width between the second discharging channel 1334 and the second stacking space 1324, thereby adjusting the discharging amount of the grain.
[0078] Specifically, the driving mechanism 1331 drives the crank slider mechanism 1332 to make the second cross baffle 1333 reciprocate in the transverse direction, the width of the second cross baffle 1333 is smaller than the width of the second drying bin 131, so that the second cross baffle 1333 can move reciprocally in the transverse direction in the drying bin, and the second cross baffle 1333 is provided with the second discharging channel 1334 corresponding to the second stacking space 1324.
[0079] By controlling the moving position of the second cross baffle 1333, the communication width between the second discharging channel 1334 and the second stacking space 1324 can be adjusted, when the communication width increases, the discharging amount of the grain increases, when the communication width decreases, the discharging amount of the grain decreases, this adjustment mode can accurately control the discharging amount of the grain according to actual needs.
[0080] As another preferable embodiment, a flattening assembly 40 is further included, the flattening assembly 40 includes a driving motor 410, a speed reduction mechanism 420, a first rotating main shaft 430, a second rotating main shaft 440 and a scraper 450, wherein,
[0081] The input end of the speed reduction mechanism 420 is connected with the output end of the driving motor 410, the first rotating main shaft 430 is rotatably connected with the drying machine body 10, and the upper end of the first rotating main shaft 430 is connected with the output end of the speed reduction mechanism 420;
[0082] The second rotating main shaft 440 is connected with the first rotating main shaft 430 and moves synchronously with the first rotating main shaft 430, and the scraper 450 is connected with the bottom of the second rotating main shaft 440 and moves synchronously with the second rotating main shaft 440 to flatten the grain located on the top of the drying machine body 10.
[0083] Specifically, the driving motor 410 drives the first rotating main shaft 430 to rotate through the speed reduction mechanism 420, thereby driving the second rotating main shaft 440 and the scraper 450 to move synchronously, and the scraper 450 flattens the grain on the top of the drying machine body 10, which can quickly and uniformly spread the grain. This design improves the efficiency of flattening the grain, so that the grain can be more fully exposed to the cold air, improving the drying effect.
[0084] Further, a dust removal fan 50 is further included, a wind inlet end of the dust removal fan 50 is communicated with a top of the inner cavity of the dryer main body 10, and a wind outlet end of the dust removal fan 50 is communicated with the outside of the dryer main body 10.
[0085] Specifically, the dust removal fan 50 can directly extract the dust and waste gas generated in the drying process through the communication of the wind inlet end of the dust removal fan 50 with the top of the inner cavity of the dryer main body 10.
[0086] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application, is also included in the patent protection range of the present application.
Claims
1. A continuous dryer, characterized in that, This includes the dryer body, the grain feeding assembly, and the discharge assembly, among which, The dryer body has a grain inlet at the top and a grain outlet at the bottom. The grain feeding assembly is used to feed the grain to be dried into the grain inlet; The dryer body includes a cold air drying section and at least one hot air drying section. The hot air drying section is located above the cold air drying section. Each hot air drying section includes an upper drying section and a lower tempering section. The grain is dried in the upper drying section of the i-th hot air drying section and then enters the lower tempering section of the i-th hot air drying section. After being kept warm in the lower tempering section of the i-th hot air drying section, it enters the upper drying section of the (i+1)-th hot air drying section. After being kept warm in the lower tempering section of the N-th hot air drying section, it enters the cold air drying section. After being cooled and dried in the cold air drying section, it enters the discharge assembly through the grain outlet. Wherein, 1≤i≤N-1, and i and N are both positive integers. The discharge assembly discharges the dried grain.
2. The continuous dryer according to claim 1, characterized in that, Each of the above drying sections includes a first drying chamber, a hot air duct assembly, and a material discharge control assembly. The hot air duct assembly includes a first hot air duct assembly disposed in the first drying chamber and a second hot air duct assembly connected to the outer wall of the dryer body. The wall of the first hot air duct assembly has a first air passage opening that connects to the first drying chamber. The air inlet of the first hot air duct assembly and the air outlet of the second hot air duct assembly are connected. The air outlet of the first hot air duct assembly is connected to the outside of the dryer body. The air inlet of the second hot air duct assembly is connected to an external hot air source. The material feeding control component has an open position and a closed position. When it is in the open position, the grain in the first drying chamber of the i-th hot air drying section enters the lower tempering section of the i-th hot air drying section, and after being kept warm in the lower tempering section of the i-th hot air drying section, it enters the first drying chamber of the (i+1)-th hot air drying section. When it is in the closed position, the grain remains in the first drying chamber.
3. The continuous dryer according to claim 2, characterized in that, The first hot air duct assembly includes two layers of first hot air duct rows arranged vertically at intervals. Each first hot air duct row includes multiple first hot air ducts evenly spaced along the width direction of the dryer body. Two adjacent first hot air ducts along the width direction form a first material stacking space.
4. The continuous dryer according to claim 3, characterized in that, The material discharge control component includes a horizontal drive cylinder and a first transverse baffle. The wall of the first drying chamber is provided with a first through hole through which the drive end of the horizontal drive cylinder passes. The width of the first transverse baffle is smaller than the width of the first drying chamber. The first transverse baffle is connected to the drive end of the horizontal drive cylinder and moves synchronously with the drive end of the horizontal drive cylinder. The first transverse baffle has a first material discharge channel that corresponds one-to-one with the first material stacking space. When in the open position, the first material discharge channel and the first material stacking space are directly opposite each other. When in the closed position, the first material discharge channel and the first material stacking space are staggered so that the grain remains in the first drying chamber.
5. The continuous dryer according to claim 4, characterized in that, The material discharge control assembly also includes a dead zone discharge valve plate, which is hinged to the inner wall of the first drying chamber. The dead zone discharge valve plate is located directly above the drive end of the horizontal drive cylinder. When in the open position, the dead zone discharge valve plate is vertical, so that the first material discharge channel and the first material stacking space are directly opposite each other. When in the closed position, the dead zone discharge valve plate is tilted, and the dead zone discharge valve plate covers the corresponding first material discharge channel, so that the grain remains in the first drying chamber.
6. The continuous dryer according to claim 1, characterized in that, The cold air drying section includes a second drying chamber, a cold air duct assembly, and a discharge control assembly. The cold air duct assembly includes a first cold air duct assembly disposed in the second drying chamber and a second cold air duct assembly connected to the outer wall of the dryer body. The wall of the first cold air duct assembly has a second air passage opening that connects to the second drying chamber. The air inlet of the first cold air duct assembly and the air outlet of the second cold air duct assembly are connected. The air outlet of the first cold air duct assembly is connected to the outside of the dryer body. The air inlet of the second cold air duct assembly is connected to an external cold air source. The discharge control component has an open position and a closed position. When it is in the open position, the grain located in the second drying chamber enters the discharge component through the grain outlet. When it is in the closed position, the grain remains in the second drying chamber.
7. The continuous dryer according to claim 6, characterized in that, The first cold air duct assembly includes a plurality of first cold air ducts evenly spaced along the width direction of the dryer body, and a second material stacking space is formed between two adjacent first cold air ducts along the width direction.
8. The continuous dryer according to claim 7, characterized in that, The discharge control component includes a drive mechanism, a crank-slider mechanism, and a second transverse baffle. The crank-slider mechanism is connected to the drive mechanism. The second drying chamber has a second through hole that matches the crank-slider mechanism. The width of the second transverse baffle is smaller than the width of the second drying chamber. The second horizontal baffle has a second material discharge channel that corresponds one-to-one with the second material stacking space. The second horizontal baffle is connected to the crank-slider mechanism and moves back and forth in the lateral direction with the crank-slider mechanism to control the connection width between the second material discharge channel and the second material stacking space, thereby adjusting the amount of grain discharged.
9. The continuous dryer according to claim 1, characterized in that, It also includes a leveling assembly, which comprises a drive motor, a reduction mechanism, a first rotating spindle, a second rotating spindle, and a scraper, wherein... The input end of the reduction mechanism is connected to the output end of the drive motor, the first rotating spindle is rotatably connected to the dryer body, and the upper end of the first rotating spindle is connected to the output end of the reduction mechanism; The second rotating spindle is connected to the first rotating spindle and moves synchronously with the first rotating spindle. The scraper is connected to the bottom of the second rotating spindle and moves synchronously with the second rotating spindle to scrape the grain located at the top inside the dryer body.
10. The continuous dryer according to claim 1, characterized in that, It also includes a dust removal fan, the air inlet of which is connected to the top of the inner cavity of the dryer body, and the air outlet of which is connected to the outside of the dryer body.