A conveying and storing device for grain drying

Abstract

The application discloses a conveying and storing device for grain drying, which comprises a conveying belt, wherein the conveying belt is externally surrounded by a conveying box, an air inlet unit, a dust removal unit, a cooling unit and an air outlet are arranged in the dust removal and cooling box, the air inlet unit comprises a dust removal air inlet and a cooling air inlet, the dust removal air inlet and the cooling air inlet are switched by an air inlet mechanism, the dust removal unit comprises a dust removal tower, the upper end of the dust removal tower is in a conical structure, the cooling unit comprises a cooling bin, and a fullness detection mechanism for detecting whether the grain is fully collected is arranged in the cooling bin. The application realizes integrated treatment of dust removal and cooling through the air inlet unit, the dust removal unit, the cooling unit, a discharging mechanism and an air exhaust system, adopts automatic linkage control as a whole, reduces the manual operation strength, improves the processing efficiency, ensures the stable grain processing quality through accurate airflow control and temperature monitoring, and effectively improves the grain storage safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain drying, in particular to a conveying and storing device for grain drying. BACKGROUND

[0002] In the post-production process of grain, the dried grain usually contains a large amount of dust, broken particles and other impurities, and the temperature is relatively high. If it is directly conveyed and stored without treatment, it is easy to cause grain mildew, quality decline and affect storage safety. The traditional post-treatment of grain drying usually adopts dispersed equipment, that is, the links of dust removal, cooling and conveying are completed by independent equipment respectively, which has the following problems:

[0003] Dispersed equipment and large floor area: the equipment of dust removal, cooling and conveying is arranged independently, which leads to long production line, occupies more space and increases the cost of capital construction and operation and maintenance;

[0004] Multiple grain transfer links: the grain is transferred multiple times between different equipment, which easily causes secondary pollution and increases the breakage rate, affecting the quality of grain;

[0005] Frequent manual intervention: the operation of each link equipment is independent, which needs manual coordination and control, has high labor intensity and low efficiency;

[0006] Unstable dust removal and cooling effect: the traditional equipment has inaccurate airflow control, incomplete dust removal and uneven cooling, which easily causes local heat accumulation or dust residue;

[0007] High energy consumption and poor environmental protection: the dust removal and cooling systems are separated, the air path is repeatedly constructed, the energy consumption is high, and the dust escape phenomenon is common, which does not meet the green production requirements.

[0008] Therefore, an integrated, highly automated, efficient, energy-saving and environmentally friendly grain drying post-treatment device is needed to realize the integrated operation of dust removal, cooling, conveying and storage. SUMMARY

[0009] The purpose of the present application is to provide a conveying and storing device for grain drying to solve the problems in the background art.

[0010] To achieve the above purpose, the present application provides the following technical scheme: a conveying and storing device for grain drying, comprising a conveying belt for conveying grain, a conveying box surrounding the outside of the conveying belt, and a plurality of dust removal and cooling boxes connected to the top of the conveying box. The grain dried by the drying tower is subjected to dust removal and cooling by the dust removal and cooling boxes, and then is conveyed and stored by the conveying belt.

[0011] The dust removal and cooling boxes are internally provided with an air inlet unit, a dust removal unit, a cooling unit and an air outlet;

[0012] The air inlet unit comprises a dust removal air inlet and a cooling air inlet, the dust removal air inlet is opened and the cooling air inlet is closed when the dust removal unit is operated, the dust removal air inlet is closed and the cooling air inlet is opened when the cooling unit is operated, and the dust removal air inlet and the cooling air inlet are switched by the air inlet mechanism;

[0013] The dust removal unit comprises a dust removal tower located in the center of the dust removal and cooling box, the upper end of the dust removal tower is in a conical structure, and a plurality of air holes are uniformly distributed on the dust removal tower, when the dust removal unit is operated, air flows into the dust removal tower through the dust removal air inlet, and drives the dust in the grain to be discharged from the air outlet;

[0014] The cooling unit comprises a cooling bin for collecting the grain after dust removal, the cooling bin is in a ring structure, and the upper end opening is connected to the bottom of the dust removal tower, and a full collection detection mechanism is arranged in the cooling bin for detecting whether the grain is fully collected, when the grain in the cooling bin is fully collected, the cooling unit is operated, and cool air is introduced into the cooling bin through the cooling air inlet to uniformly cool the grain;

[0015] Four groups of discharge ports are arranged near the bottom of the cooling bin, and a discharge plate is arranged in each discharge port, and the discharge plate is controlled to be opened or closed by a discharge mechanism.

[0016] Preferably, the cooling unit further comprises an exhaust bin, and the exhaust bin is in a ring structure, an annular partition plate is arranged between the exhaust bin and the cooling bin, a plurality of air holes are uniformly distributed on the annular partition plate, an upper sealing plate with an inclined structure is arranged at the upper end of the exhaust bin, and a plurality of air holes are uniformly distributed on the upper sealing plate and communicate with the exhaust port.

[0017] Preferably, a temperature sensing system for monitoring the cooling state of the grain is arranged in the exhaust bin, the temperature sensing system comprises two fixed plates one fixed on the inner wall of the dust removal and cooling box, a pressure sensor and a memory metal spring are arranged between the two fixed plates one, one end of the memory metal spring is in extrusion connection with the pressure sensor, the memory metal spring shrinks with the decrease of temperature, and when the pressure value of the pressure sensor reaches the set parameter, the discharge mechanism drives the discharge plate to be opened to discharge.

[0018] Preferably, the air inlet mechanism comprises an air inlet pipe, a sealing plate one is arranged at the connection between the top of the dust removal tower and the tower body, so that the top and the tower body form two closed spaces, and the air inlet pipe communicates with the middle of the sealing plate one;

[0019] A dust removal valve is arranged below the dust removal air inlet, a dust removal valve ball is rotatably arranged in the dust removal valve, and the opening and closing of the dust removal valve are controlled by the rotation of the dust removal valve ball;

[0020] The cooling air inlet is externally sleeved with a sealing ring for sealing the cooling air inlet, and the closing and opening of the cooling air inlet is controlled by the rising and falling of the sealing ring.

[0021] One side of the air inlet pipe is provided with a driving frame in U-shaped structure, the driving frame is controlled to lift and lower through an extension link, the two sides of the bottom of the sealing ring are fixedly connected with the two sides of the driving frame, the upper end of the driving frame is provided with a vertical rod, the vertical rod is provided with a straight rack on the upper end, the dust removal valve ball is connected with a gear one, and the gear one is in meshing connection with the straight rack.

[0022] When the driving frame is lowered, the dust removal air inlet is closed and the cooling air inlet is opened.

[0023] Preferably, the fullness detection mechanism comprises a bearing plate located at the bottom of the cooling bin, the bearing plate is in annular structure, the upper end of the bearing plate is inclined to the direction of the discharge port, the upper end of the bearing plate is provided with four support rods, the upper end of the support rod is provided with an inclined cover plate, and a gap is formed between the cover plate and the dust removal tower, so that the grain after dust removal falls onto the bearing plate in the cooling bin from the gap.

[0024] The bottom of the bearing plate is provided with four groups of lifting rods, the lifting rods are in sliding connection with the bottom of the dust removal cooling box, the outer part of the lifting rods is sleeved with springs, the bottom of the cooling bin is provided with a touch sensor, when the grain in the cooling bin is full, the bearing plate is lowered to the discharge port, the cover plate seals the upper end of the cooling bin, and the bearing plate triggers the touch sensor to make the cooling unit run.

[0025] Preferably, the bottom of the cooling bin is provided with two groups of electromagnetic blocks, the bottom of the bearing plate is provided with two groups of magnetic blocks matched with the electromagnetic blocks, when the discharge mechanism operates, the electromagnetic blocks are electrified and attracted to the magnetic blocks, so that the compressed springs cannot rebound, and after the discharge is completed, the magnetic blocks are de-energized to make the springs rebound.

[0026] Preferably, the discharge mechanism comprises two guide columns and a cutting column located in the inner arc surface of the discharge plate, the cutting column is located between the two guide columns, the inner part of the dust removal tower close to the lower end is provided with a sealing plate two, the lower end of the sealing plate two is provided with a fixed plate two, the guide column is in sliding connection with the fixed plate two, one end of the cutting column is provided with a cutting plate, and the upper end of the cutting plate is provided with a driving column.

[0027] The sealing plate two is in sliding connection with a rotating ring through an arc-shaped sliding rail, the inner arc surface of the rotating ring is provided with driving blocks same in number as the driving column, one side of the driving block is in arc-shaped structure and tangent to the driving column.

[0028] The bottom of the sealing plate two is rotatably provided with a gear two, the gear two is driven to rotate through a motor, the inner arc surface of the rotating ring is provided with an arc-shaped rack, and the arc-shaped rack is in meshing connection with the gear two.

[0029] Preferably, the air outlet is provided with four, through the exhaust pipe one and the exhaust system is connected, the exhaust system includes the main exhaust pipe located in the dust removal cooling box side, the conveying box upper end is distributed with a plurality of exhaust pipe two, the exhaust pipe two is connected with the main exhaust pipe.

[0030] Preferably, the dust removal cooling box is provided with a grain transfer box above, the grain transfer box bottom is provided with a feed inlet, the feed inlet bottom matches with the dust removal tower top, the feed inlet is provided with a solenoid valve.

[0031] Preferably, the dust removal cooling box bottom is provided with a guide cylinder, the guide cylinder bottom is fixedly connected with the conveying box upper end.

[0032] Compared with the prior art, the beneficial effects of the present application are:

[0033] The present application realizes the integration of dust removal and cooling through the air inlet unit, dust removal unit, cooling unit, discharging mechanism and exhaust system, reduces the equipment area and grain transfer link, adopts automatic linkage control as a whole, reduces the manual operation strength, improves the processing efficiency, ensures the stable grain processing quality through the precise airflow control and temperature monitoring, effectively improves the grain storage safety, the closed structure and the environmental protection exhaust design meet the green production requirements, and reduce the dust pollution;

[0034] The air inlet unit provides airflow for different processes by precisely controlling the opening and closing of two air inlets, the dust removal air inlet is communicated with the top of the dust removal tower, and the cooling air inlet is communicated with the cooling bin, the air inlet mechanism is an execution mechanism for switching the two air inlets, and mechanical linkage design is adopted to realize the reverse synchronous action of the two air inlets, that is, the dust removal air inlet is opened and the cooling air inlet is closed, and the cooling air inlet is opened and the dust removal air inlet is closed, so that the process switching is not disturbed;

[0035] The dust removal unit can remove the dust, broken grains and other impurities carried by the dried grain, the dust removal tower has a columnar structure, and the upper end is designed in a conical shape, the conical structure can guide the grain to uniformly disperse and fall, and prevent the grain from being concentrated and accumulated to affect the dust removal effect;

[0036] The cooling unit can quickly and uniformly cool the high-temperature grain after dust removal, prevent the grain from being mildewed and the quality from being reduced due to high temperature, when the cooling unit operates, the cool air is introduced into the cooling bin from the cooling air inlet, passes through the grain layer and the air holes of the annular partition plate into the exhaust bin, and then is discharged through the air holes of the upper sealing plate and the exhaust port, to form a complete cycle of "cool air in-penetrate grain cooling-hot air out", realize uniform cooling of the grain, and the full detection mechanism and temperature sensing system arranged in the cooling unit realize full bin detection of the cooling bin and cooling state monitoring of the grain respectively, to provide accurate signals for process switching and discharging, and ensure the cooling effect and processing efficiency;

[0037] The discharging mechanism is responsible for discharging the qualified grain to the conveying belt, in order to ensure the stability of the discharging process, two groups of electromagnetic blocks and magnetic suction blocks are used, when the discharging mechanism is started, the electromagnetic blocks are powered to generate magnetic force, and the magnetic suction blocks are attracted and fixed, so that the bearing plate is kept in the discharging position, avoiding the influence of spring rebound on discharging, after the discharging is completed, the electromagnetic blocks are powered off, the magnetic force disappears, and the spring rebound pushes the bearing plate to reset, waiting for the next round of grain falling;

[0038] The exhaust system is responsible for timely discharging the dust-containing airflow generated in the dust removal process and the hot air generated in the cooling process, so as to ensure the cleanliness of the grain conveying environment. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the application;

[0040] Figure 2 It is a cross-sectional view of the conveying box of the application;

[0041] Figure 3 It is a schematic diagram of the dust removal and cooling box structure of the application;

[0042] Figure 4 It is a cross-sectional view of the dust removal and cooling box of the application;

[0043] Figure 5 It is a schematic diagram of the dust removal and cooling box of the application; Figure 4 It is a detailed enlarged view of A in the middle;

[0044] Figure 6 It is a schematic diagram of the dust removal tower structure of the application;

[0045] Figure 7 It is a cross-sectional view of the dust removal tower of the application;

[0046] Figure 8 It is a schematic diagram of the air inlet mechanism of the application; Figure 1 ;

[0047] Figure 9 It is a schematic diagram of the air inlet mechanism of the application;

[0048] Figure 10 It is a schematic diagram of the fullness detection mechanism of the application;

[0049] Figure 11 It is a schematic diagram of the discharging mechanism of the application. Figure 2 .

[0050] In the figure: 1, conveying belt; 2, dust removal cooling box; 21, air outlet; 22, material guide cylinder; 3, air inlet unit; 31, dust removal air inlet; 32, cooling air inlet; 4, dust removal unit; 41, dust removal tower; 42, closure plate one; 43, closure plate two; 5, cooling unit; 51, cooling bin; 52, exhaust bin; 53, annular partition; 54, upper closure plate; 6, air inlet mechanism; 61, air inlet pipe; 62, dust removal valve; 63, dust removal valve ball; 64, closure ring; 65, drive frame; 66, telescopic rod; 67, vertical rod; 68, rack; 69, gear one; 7, fullness detection mechanism; 71, weight bearing plate; 72, support rod; 73, cover plate; 74, lifting rod; 75, spring; 76, touch sensor; 8, discharge mechanism; 81, discharge port; 82, discharge plate; 83, guide column; 84, cutting column; 85, fixed plate two; 86, cutting plate; 87, drive column; 88, arc-shaped sliding rail; 89, rotating ring; 810, drive block; 811, gear two; 812, arc-shaped rack; 9, temperature sensing system; 91, fixed plate one; 92, pressure sensor; 93, memory metal spring; 10, exhaust system; 101, conveying box; 102, main exhaust pipe; 103, exhaust pipe one; 104, exhaust pipe two; 11, electromagnetic block; 12, magnetic attraction block; 13, grain transfer box; 14, feed inlet. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. 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 protection of the present application.

[0052] Please refer to Figures 1-11 The present application provides a technical solution: a conveying and storing device for grain drying, comprising a conveying belt 1 for conveying grain, a conveying box 101 surrounding the outside of the conveying belt 1, a plurality of dust removal cooling boxes 2 connected to the top of the conveying box 101, a material guide cylinder 22 provided at the bottom of the dust removal cooling box 2, and the bottom of the material guide cylinder 22 being fixedly connected to the upper end of the conveying box 101. After being dried in the drying tower, the grain is subjected to dust removal and cooling in the dust removal cooling box 2, and then is conveyed and stored by the conveying belt 1. The dust removal cooling box 2 is internally provided with an air inlet unit 3, a dust removal unit 4, a cooling unit 5, and an air outlet 21.

[0053] The device is an automatic equipment integrating dust removal, cooling, conveying and storage, and is designed for subsequent processing of dried grain, aiming to solve the problems of high dust content, high temperature and secondary pollution in the conveying process, and realize the automation, continuity and refinement of grain processing, greatly improve the efficiency and quality of post-processing of grain, and finally realize efficient conveying and safe storage of dried grain. The conveying belt 1 is located on one side of the drying tower, and the drying tower of the large-scale grain drying system is generally provided with a plurality of drying towers. Each drying tower discharges the dried grain into the corresponding dust removal and cooling box 2 to complete the accurate processing of the grain. After the grain is cooled and dusted, it falls onto the conveying belt 1, and then the conveying belt 1 is used as a conveying carrier to realize clean conveying of the grain in cooperation with the sealed conveying box 101, and the grain is stored.

[0054] A grain transfer box 13 is arranged above the dust removal and cooling box 2, and the grain transfer box 13 is provided with a feed inlet 14 at the bottom. The bottom of the feed inlet 14 is matched with the top of the dust removal tower 41, and the feed inlet 14 is provided with an electromagnetic valve.

[0055] The grain transfer box 13 undertakes the functions of grain transfer and accurate control between the drying tower and the dust removal and cooling box 2. The grain transfer box 13 is a large-capacity temporary storage structure, which is used to receive high-temperature grain discharged from the drying tower and plays a buffering role to avoid fluctuations in the load of the subsequent processing unit caused by uneven discharge of the drying tower. The feed inlet 14 is arranged at the bottom of the grain transfer box 13, and the size of the feed inlet 14 is accurately matched with the conical structure at the top of the dust removal tower 41 to ensure that the grain can fall vertically into the dust removal tower 41 and reduce grain overflow. The electromagnetic valve realizes automatic opening and closing of the feed inlet 14 through electrical signals, and flexibly adjusts the feeding rhythm according to the full state of the cooling bin 51. When the cooling bin 51 is full of grain, the electromagnetic valve is closed to stop feeding to avoid grain accumulation. When the cooling bin 51 is empty, the electromagnetic valve is opened to resume feeding, realizing the coordinated linkage of feeding and processing.

[0056] The air inlet unit 3 includes a dust removal air inlet 31 and a cooling air inlet 32. When the dust removal unit 4 is running, the dust removal air inlet 31 is opened, and the cooling air inlet 32 is closed. When the cooling unit 5 is running, the dust removal air inlet 31 is closed, and the cooling air inlet 32 is opened. The dust removal air inlet 31 and the cooling air inlet 32 are controlled and switched by the air inlet mechanism 6.

[0057] The air inlet mechanism 6 comprises an air inlet pipe 61, the top of the dust removal tower 41 inside the tower body is provided with a closed plate 42, so that the tower top and the tower body form two closed spaces, the air inlet pipe 61 is communicated with the middle part of the closed plate 42, the dust removal air inlet 31 is provided with a dust removal valve 62 below, the dust removal valve ball 63 is rotatably installed inside the dust removal valve 62, the opening and closing of the dust removal valve 62 is controlled by the rotation of the dust removal valve ball 63, the cooling air inlet 32 is provided with a closed ring 64 outside, which is used for sealing the cooling air inlet 32, the closing and opening of the cooling air inlet 32 is controlled by the rising or falling of the closed ring 64, the driving frame 65 is provided on one side of the air inlet pipe 61, and the driving frame 65 is a U-shaped structure, the driving frame 65 is controlled to rise and fall through the telescopic rod 66, the two sides of the bottom of the closed ring 64 are fixedly connected with the two sides of the driving frame 65, the vertical rod 67 is arranged on the upper end of the driving frame 65, the straight rack 68 is arranged on the vertical rod 67, the gear one 69 is connected with the dust removal valve ball 63, the gear one 69 is meshed with the straight rack 68, when the driving frame 65 falls, the dust removal air inlet 31 is closed, and the cooling air inlet 32 is opened.

[0058] The air inlet mechanism 6 is an execution mechanism for switching the two air inlets, which adopts mechanical linkage design to realize reverse synchronous action of the two air inlets, that is, the dust removal air inlet 31 is opened and the cooling air inlet 32 is closed, and the cooling air inlet 32 is opened and the dust removal air inlet 31 is closed, so that the switching of processes is not disturbed, the two sides of the driving frame 65 are fixedly connected with the bottom of the closed ring 64, when the driving frame 65 falls, the closed ring 64 moves downward, the sealing of the cooling air inlet 32 is released, the straight rack 68 on the vertical rod 67 at the upper end of the driving frame is engaged with the gear one 69 connected with the dust removal valve ball 63, the driving frame 65 falls to drive the straight rack 68 to move downward, the gear one 69 rotates to make the dust removal valve ball 63 rotate to the position of closing the dust removal air inlet 31, and vice versa, when the driving frame 65 rises, the closed ring 64 moves upward to seal the cooling air inlet 32, the straight rack 68 moves upward to drive the gear one 69 to rotate reversely to open the dust removal air inlet 31, and the switching of the air inlet mode is completed.

[0059] The dust removal unit 4 comprises the dust removal tower 41 located in the center of the dust removal and cooling box 2, and the upper end of the dust removal tower 41 is a conical structure, and a plurality of air holes are uniformly distributed on the dust removal tower 41.

[0060] The dust removal unit 4 is used for removing dust, broken grains and other impurities carried by the dried grains, the dust removal tower 41 is in a columnar structure, and the upper end is designed in a conical shape; the conical structure can guide the grains to uniformly and evenly fall down, avoiding the grains from being concentrated and accumulated to affect the dust removal effect; a large number of small pores are uniformly distributed on the surface of the tower body; the inside of the dust removal tower 41 is divided into two closed spaces of the tower top and the tower body by the closed plate one 42; the air inlet pipe 61 is communicated with the middle part of the closed plate one 42 to form a concentrated air inlet channel; the drying tower inputs the dried grains into the grain transfer box 13; the grain transfer box 13 inputs the grains into the upper end of the dust removal tower 41 through the feeding port 14; the dust removal unit 4 operates; the cooling air inlet 32 is closed and the dust removal air inlet 31 is opened through the air inlet mechanism 6; the airflow diffuses outward through the tower top pores to form a stable upward airflow; the airflow drives the dust and light impurities in the grains to move upward, and finally is discharged from the air outlet 21 to complete the dust removal process; in the dust removal process, part of the heat on the grains can also be taken away to precool the grains to improve the cooling efficiency of the subsequent grains.

[0061] The cooling unit 5 comprises a cooling bin 51 for collecting the dust-removed grains; the cooling bin 51 is in a ring structure, and the upper end opening is in butt joint with the bottom of the dust removal tower 41; the inside of the cooling bin 51 is provided with a full collection detection mechanism 7 for detecting whether the grains are collected full; when the grains in the inside of the cooling bin 51 are collected full, the cooling unit 5 operates; the cooling air is introduced into the cooling bin 51 through the cooling air inlet 32 to uniformly cool the grains;

[0062] The cooling unit 5 further comprises an exhaust bin 52 in a ring structure; the ring-shaped partition plate 53 is arranged between the exhaust bin 52 and the cooling bin 51; a plurality of pores are uniformly distributed on the ring-shaped partition plate 53; the upper end of the exhaust bin 52 is provided with the upper end plate 54 in an inclined structure; a plurality of pores are uniformly distributed on the upper end plate 54 and are communicated with the air outlet 21;

[0063] The full collection detection mechanism 7 comprises the bearing plate 71 located at the bottom of the cooling bin 51; the bearing plate 71 is in a ring structure, and the upper end of the bearing plate 71 is inclined to the discharge port 81; the upper end of the bearing plate 71 is provided with the four support rods 72; the upper end of the support rod 72 is provided with the cover plate 73 in an inclined structure; the gap is arranged between the cover plate 73 and the dust removal tower 41, so that the dust-removed grains fall onto the bearing plate 71 in the cooling bin 51 through the gap; the bottom of the bearing plate 71 is provided with the four lifting rods 74; the lifting rods 74 are in up-and-down sliding connection with the bottom of the dust removal and cooling box 2; the spring 75 is arranged outside the lifting rod 74; the bottom of the cooling bin 51 is provided with the touch sensor 76; when the grains in the inside of the cooling bin 51 are collected full, the bearing plate 71 is lowered to the discharge port 81; the cover plate 73 closes the upper end of the cooling bin 51; meanwhile, the bearing plate 71 triggers the touch sensor 76 to make the cooling unit 5 operate;

[0064] The temperature sensing system 9 is arranged in the exhaust bin 52 and used for monitoring the cooling state of the grain, the temperature sensing system 9 comprises two fixed plates 91 fixed on the inner wall of the dust removal cooling box 2, a pressure sensor 92 and a memory metal spring 93 are arranged between the two fixed plates 91, one end of the memory metal spring 93 is in extrusion connection with the pressure sensor 92, the memory metal spring 93 shrinks with the decrease of temperature, and when the pressure value of the pressure sensor 92 reaches the set parameter, the discharging mechanism 8 drives the discharging plate 82 to open and discharge.

[0065] The cooling unit 5 is used for rapidly and uniformly cooling the high-temperature grain after dust removal, preventing the grain from being mildewed and the quality from being reduced due to the excessively high temperature, when the cooling unit 5 operates, the cold air is introduced into the cooling bin 51 from the cooling air inlet 32, passes through the grain layer and the air holes of the annular partition plate 53 to enter the exhaust bin 52, and then is discharged through the air holes of the upper sealing plate 54 and the exhaust port 21, to form a complete cycle of "cold air in-penetration and temperature reduction-hot air out", so that the grain is uniformly cooled, the full detection mechanism 7 and the temperature sensing system 9 arranged in the cooling unit 5 respectively realize the full detection of the cooling bin 51 and the monitoring of the cooling state of the grain, to provide accurate signals for process switching and discharging, and ensure the cooling effect and processing efficiency;

[0066] The full detection mechanism 7 accurately judges the full state of the grain in the cooling bin 51 through the mechanical bearing and sensor triggering mode, the bearing plate 71 is in an annular structure and is inclined to the discharging port 81 at the upper end, so that the grain is easily gathered to the discharging port 81, the gap is reserved between the cover plate 73 and the dust removal tower 41, to ensure that the grain after dust removal falls into the bearing plate 71 from the gap, when the grain after dust removal continuously falls into the cooling bin 51, the pressure borne by the bearing plate 71 gradually increases, the spring 75 at the bottom is compressed, and the lifting rod 74 is driven to slide downward along the bottom of the dust removal cooling box 2, when the grain is full, the bearing plate 71 is lowered to the position flush with the discharging port 81, at this time, the cover plate 73 is just attached to the upper end of the cooling bin 51, to realize the closure of the cooling bin 51 and avoid the air leakage from the upper end in the cooling process, at the same time, the bearing plate 71 triggers the touch sensor 76 at the bottom, the touch sensor 76 sends a signal to the control unit, the air inlet mechanism 6 is switched to the cooling mode, and the cooling unit 5 is started to operate, at this time, the dust removal air inlet 31 is closed, the cooling air inlet 32 is opened, the air flow enters the cooling bin 51 through the cooling air inlet 32 to further cool the grain, and then the air flow enters the exhaust bin 52 after heat exchange with the grain, and then is discharged through the air holes at the upper end of the exhaust bin 52 and then is discharged into the exhaust system 10 through the exhaust port 21;

[0067] The temperature sensing system 9 is used for monitoring the temperature of the grain in the cooling bin 51 in real time, and ensuring that the grain is cooled to the qualified temperature before being discharged. The memory metal spring 93 is temperature sensitive, and its length changes with the temperature. When the temperature of the grain is high, the memory metal spring 93 is in an extended state, and exerts a large pressure on the pressure sensor 92. As the grain is cooled, the temperature gradually decreases, and the memory metal spring 93 gradually shrinks, and the pressure on the pressure sensor 92 decreases. When the pressure value detected by the pressure sensor 92 decreases to a set threshold value (corresponding to the qualified cooling temperature of the grain), a signal is immediately sent to the control unit, and the discharge mechanism 8 is triggered to operate, and the discharge plate 82 is opened to discharge the grain. This design utilizes the physical properties of the memory metal, realizes the conversion of the temperature signal into a mechanical signal, and is accurate and reliable in monitoring.

[0068] The cooling bin 51 is provided with four groups of discharge ports 81 near the bottom, and the discharge ports 81 are each provided with a discharge plate 82. The discharge plate 82 is controlled to be opened or closed by the discharge mechanism 8. The discharge mechanism 8 includes two guide columns 83 and a cutting column 84 located on the inner arc surface of the discharge plate 82. The cutting column 84 is located between the two guide columns 83. The dust removal tower 41 is provided with a closing plate two 43 near the lower end. The closing plate two 43 is provided with a fixed plate two 85 at the lower end. The guide column 83 is in sliding connection with the fixed plate two 85. One end of the cutting column 84 is provided with a cutting plate 86. The upper end of the cutting plate 86 is provided with a driving column 87. The closing plate two 43 is in sliding connection with a rotating ring 89 through an arc-shaped sliding rail 88. The inner arc surface of the rotating ring 89 is provided with driving blocks 810 which are the same in number as the driving column 87. One side of the driving block 810 is in arc-shaped structure and is tangent to the driving column 87. The bottom of the closing plate two 43 is rotatably provided with a gear two 811. The gear two 811 is driven to rotate by a motor. The inner arc surface of the rotating ring 89 is provided with an arc-shaped rack 812. The arc-shaped rack 812 is in meshing connection with the gear two 811.

[0069] The bottom of the cooling bin 51 is provided with two groups of electromagnetic blocks 11. The bottom of the bearing plate 71 is provided with two groups of magnetic attraction blocks 12 matched with the electromagnetic blocks 11. When the discharge mechanism 8 operates, the electromagnetic blocks 11 are electrified and attracted to the magnetic attraction blocks 12, so that the compressed spring 75 cannot rebound. After the discharge is completed, the magnetic attraction blocks 12 are de-energized, so that the spring 75 rebounds.

[0070] The discharge mechanism 8 is responsible for discharging the qualified grain to the conveying belt 1, four groups of discharge ports 81 are uniformly arranged near the bottom of the cooling bin 51, and the discharge ports 81 are annularly distributed, so that the grain can be discharged from different directions at the same time, and local material accumulation is avoided, and each discharge port 81 is internally provided with a discharge plate 82, the discharge plate 82 adopts an arc structure matched with the arc of the cooling bin 51, and the discharge port 81 can be completely sealed when the discharge plate 82 is closed, the discharge mechanism 8 drives the synchronous opening and closing of the four groups of discharge plates 82, and the power source is a gear two 811 driven by a motor, which is meshed with the arc-shaped rack 812 in the inner arc surface of the rotating ring 89, drives the rotating ring 89 to rotate, the driving block 810 on the rotating ring 89 pushes the driving column 87 through the arc surface, and then drives the opening plate 86 and the opening column 84 to move, so that the sliding opening and closing of the discharge plate 82 are realized, and the setting of the guide column 83 ensures the stability of the movement of the discharge plate 82 and avoids the phenomenon of jamming;

[0071] In order to ensure the stability of the discharging process, two groups of electromagnetic blocks 11 are arranged at the bottom of the cooling bin 51, and the magnetic attraction blocks 12 are correspondingly arranged at the bottom of the bearing plate 71, when the discharge mechanism 8 is started, the electromagnetic blocks 11 are electrified to generate magnetic force, and are attracted and fixed with the magnetic attraction blocks 12, so that the bearing plate 71 is kept at the discharging position, the spring 75 is prevented from rebounding to affect the discharging, after the discharging is completed, the electromagnetic blocks 11 are de-energized, the magnetic force disappears, and the spring 75 rebounds to push the bearing plate 71 to reset, waiting for the next round of grain to fall.

[0072] The air outlet 21 is provided with four air outlet pipes one 103 connected with the air exhaust system 10, and the air exhaust system 10 includes a main air exhaust pipe 102 located on one side of the dust removal and cooling box 2, and a plurality of air outlet pipes two 104 distributed on the upper end of the conveying box 101.

[0073] The air exhaust system 10 is responsible for discharging the dust-containing airflow generated in the dust removal process and the hot air generated in the cooling process in time, each dust removal and cooling box 2 is provided with four air outlets 21 uniformly distributed on the upper part of the box body, and is communicated with the main air exhaust pipe 102 through the air outlet pipe one 103, so that the airflow is smoothly discharged, at the same time, a plurality of air outlet pipes two 104 are distributed on the upper end of the conveying box 101, and are also connected with the main air exhaust pipe 102, which is used for discharging the dust and hot air possibly remaining in the conveying box 101, and further guarantees the cleanliness of the grain conveying environment, the main air exhaust pipe 102 is connected with the dust removal equipment and the air induction device at the end, the dust-containing airflow is discharged after dust removal treatment, meets the environmental protection requirements, and avoids dust pollution to the environment.

[0074] The working principle and use process of the application are as follows:

[0075] Start of feeding: open the electromagnetic valve of the grain transfer box 13, high-temperature grain discharged from the drying tower falls into the dust removal tower 41 of the dust removal and cooling box 2 through the feeding port 14, the feeding process starts, at this time the air inlet mechanism 6 is in the initial state, the driving frame 65 rises, the dust removal air inlet 31 is opened, the cooling air inlet 32 is closed, and the dust removal unit 4 starts to work;

[0076] Dust removal process: the grain falls uniformly along the conical top of the dust removal tower 41, the airflow enters the upper end of the dust removal tower 41 from the dust removal air inlet 31, diffuses outward through the air holes, drives the dust and fine powder in the grain to move upward, enters the exhaust pipe one 103 from the exhaust port 21, and finally enters the main exhaust pipe 102 for dust removal treatment. The grain after dust removal falls from the gap between the bottom of the dust removal tower 41 and the cover plate 73 onto the load-bearing plate 71 of the cooling bin 51;

[0077] Start of cooling process: as the grain continuously falls into the cooling bin 51, the pressure borne by the load-bearing plate 71 gradually increases, driving the lifting rod 74 to descend and compress the spring 75. When the grain is full, the load-bearing plate 71 descends to trigger the touch sensor 76, which sends a signal to the control unit: ① controls the extension of the telescopic rod 66, the driving frame 65 descends, the dust removal air inlet 31 is closed, the cooling air inlet 32 is opened, and the cooling mode is switched; ② controls the electromagnetic valve to close and suspends the feeding;

[0078] Cooling process: cool air enters the cooling bin 51 from the cooling air inlet 32, exchanges heat through the grain layer, the heated air enters the exhaust bin 52 through the air holes of the annular partition plate 53, and then exits through the air holes of the upper cover plate 54 and the exhaust port 21. The temperature sensing system 9 monitors the temperature in the bin in real time, and the memory metal spring 93 gradually contracts as the temperature decreases, continuously reducing the pressure on the pressure sensor 92;

[0079] Discharging process: when the pressure detected by the pressure sensor 92 reaches the set threshold (the grain is cooled to the required temperature), a signal is immediately sent to the control unit: ① controls the electromagnetic block 11 to be electrified and magnetically attracted to the magnetic block 12 at the bottom of the load-bearing plate 71; ② starts the motor of the discharging mechanism 8, rotates the gear two 811 to drive the rotating ring 89, pushes the driving block 810 to drive the driving column 87, and makes the discharging plate 82 slide along the guide column 83 to open the discharging port 81;

[0080] Conveying process: the cooled grain falls into the guide cylinder 22 from the four discharging ports 81 simultaneously, slides through the guide cylinder 22 to the conveying belt 1 in the conveying box 101, and is conveyed to the subsequent storage equipment by the conveying belt 1. The residual dust and hot air in the conveying box 101 enter the main exhaust pipe 102 through the exhaust pipe two 104.

[0081] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A grain drying conveying and storage device, comprising a conveyor belt (1) for conveying grain, wherein the conveyor belt (1) is surrounded by a conveyor box (101), characterized in that: The top of the conveyor box (101) is connected to multiple dust removal and cooling boxes (2). After the grain is dried by the drying tower, it is dusted and cooled by the dust removal and cooling boxes (2) and then transported and stored by the conveyor belt (1). The dust removal and cooling box (2) is equipped with an air inlet unit (3), a dust removal unit (4), a cooling unit (5) and an exhaust port (21). The air intake unit (3) includes a dust removal air intake (31) and a cooling air intake (32). When the dust removal unit (4) is running, the dust removal air intake (31) is open and the cooling air intake (32) is closed. When the cooling unit (5) is running, the dust removal air intake (31) is closed and the cooling air intake (32) is open. The dust removal air intake (31) and the cooling air intake (32) are switched by the air intake mechanism (6). The dust removal unit (4) includes a dust removal tower (41) located in the center of the dust removal cooling box (2), and the upper end of the dust removal tower (41) is a conical structure. Several air holes are evenly distributed on the dust removal tower (41). When the dust removal unit (4) is running, the airflow enters the dust removal tower (41) through the dust removal air inlet (31) and drives the dust in the grain to be discharged from the exhaust port (21). The cooling unit (5) includes a cooling chamber (51) for collecting the dust-removed grain. The cooling chamber (51) has a ring structure and its upper opening is connected to the bottom of the dust removal tower (41). The cooling chamber (51) is equipped with a full collection detection mechanism (7) for detecting whether the grain is fully collected. When the cooling chamber (51) is full of grain, the cooling unit (5) is activated and cold air is introduced into the cooling chamber (51) through the cooling air inlet (32) to uniformly cool the grain. The cooling chamber (51) has four sets of discharge ports (81) near the bottom. Each discharge port (81) is equipped with a discharge plate (82). The discharge plate (82) is opened or closed by the discharge mechanism (8). The air intake mechanism (6) includes an air intake pipe (61). A sealing plate (42) is provided at the connection between the top of the tower and the tower body inside the dust removal tower (41), so that the top of the tower and the tower body form two closed spaces. The air intake pipe (61) is connected to the middle of the sealing plate (42). A dust removal valve (62) is provided below the dust removal air inlet (31). A dust removal valve ball (63) is rotatably installed inside the dust removal valve (62). The opening and closing of the dust removal valve (62) is controlled by the rotation of the dust removal valve ball (63). The cooling air inlet (32) is fitted with a sealing ring (64) to seal the cooling air inlet (32). The opening and closing of the cooling air inlet (32) is controlled by the rising or falling of the sealing ring (64). The air inlet pipe (61) is provided with a drive frame (65) on one side, and the drive frame (65) is a U-shaped structure. The drive frame (65) is controlled to rise and fall by a telescopic rod (66). The bottom sides of the closed ring (64) are fixedly connected to the two sides of the drive frame (65). The upper end of the drive frame (65) is provided with a vertical rod (67). The vertical rod (67) is provided with a rack (68). The dust removal valve ball (63) is connected to a gear (69). The gear (69) meshes with the rack (68). When the drive frame (65) descends, the dust removal air inlet (31) closes and the cooling air inlet (32) opens.

2. The grain drying conveying and storage device according to claim 1, characterized in that: The cooling unit (5) also includes an exhaust chamber (52), which is an annular structure. An annular partition (53) is provided between the exhaust chamber (52) and the cooling chamber (51). Several air holes are evenly distributed on the annular partition (53). An inclined upper sealing plate (54) is provided at the upper end of the exhaust chamber (52). Several air holes are evenly distributed on the upper sealing plate (54), which is connected to the exhaust port (21).

3. A grain drying conveying and storage device according to claim 2, characterized in that: The exhaust chamber (52) is equipped with a temperature sensing system (9) for monitoring the cooling status of grain. The temperature sensing system (9) includes two fixed plates (91) fixed on the inner wall of the dust removal cooling box (2). A pressure sensor (92) and a memory metal spring (93) are provided between the two fixed plates (91). One end of the memory metal spring (93) is pressed and connected to the pressure sensor (92). The memory metal spring (93) contracts as the temperature decreases. When the pressure value of the pressure sensor (92) reaches the set parameter, the discharge mechanism (8) drives the discharge plate (82) to open for discharge.

4. A grain drying conveying and storage device according to claim 1, characterized in that: The full detection mechanism (7) includes a load-bearing plate (71) located at the bottom of the cooling chamber (51). The load-bearing plate (71) has a ring structure and the upper end of the load-bearing plate (71) is inclined towards the discharge port (81). The upper end of the load-bearing plate (71) is provided with four support rods (72). The upper end of the support rods (72) is provided with an inclined cover plate (73). There is a gap between the cover plate (73) and the dust removal tower (41) so that the grain falls from the gap into the load-bearing plate (71) in the cooling chamber (51) after dust removal. The bottom of the load-bearing plate (71) is provided with four sets of lifting rods (74), and the lifting rods (74) are slidably connected to the bottom of the dust removal cooling box (2). The lifting rods (74) are fitted with springs (75). The bottom of the cooling chamber (51) is provided with touch sensors (76). When the grain inside the cooling chamber (51) is full, the load-bearing plate (71) descends to the discharge port (81), and the cover plate (73) seals the upper end of the cooling chamber (51). At the same time, the load-bearing plate (71) triggers the touch sensors (76) to make the cooling unit (5) run.

5. A grain drying conveying and storage device according to claim 4, characterized in that: The cooling chamber (51) has two sets of electromagnetic blocks (11) at the bottom, and the load-bearing plate (71) has two sets of magnetic blocks (12) that match the electromagnetic blocks (11) at the bottom. When the discharge mechanism (8) is running, the electromagnetic blocks (11) are energized and attract the magnetic blocks (12), so that the compressed spring (75) cannot rebound. After the discharge is completed, the magnetic blocks (12) are de-energized, so that the spring (75) rebounds.

6. A grain drying conveying and storage device according to claim 1, characterized in that: The discharge mechanism (8) includes two guide columns (83) and a cutting column (84) located on the inner arc surface of the discharge plate (82). The cutting column (84) is located between the two guide columns (83). The dust removal tower (41) has a second sealing plate (43) near the lower end. The second sealing plate (43) has a second fixing plate (85) at the lower end. The guide column (83) is slidably connected to the second fixing plate (85). The cutting column (84) has a cutting plate (86) at one end. The cutting plate (86) has a driving column (87) at the upper end. The second closed plate (43) is slidably connected to a rotating ring (89) via an arc-shaped slide rail (88). The inner arc surface of the rotating ring (89) is provided with the same number of driving blocks (810) as the driving columns (87). One side of the driving block (810) is an arc-shaped structure and is tangent to the driving column (87). The bottom of the second closed plate (43) is rotatably mounted with a second gear (811). The second gear (811) is driven to rotate by a motor. The inner arc surface of the rotating ring (89) is provided with an arc-shaped rack (812), which meshes with the second gear (811).

7. A grain drying conveying and storage device according to claim 1, characterized in that: The exhaust vents (21) are provided with four, and are connected to the exhaust system (10) through exhaust pipe one (103). The exhaust system (10) includes a main exhaust pipe (102) located on one side of the dust removal cooling box (2). Multiple exhaust pipes two (104) are distributed at the upper end of the conveying box (101), and the exhaust pipes two (104) are connected to the main exhaust pipe (102).

8. A grain drying conveying and storage device according to claim 1, characterized in that: The dust removal cooling box (2) is equipped with a grain transfer box (13) above it. The grain transfer box (13) is equipped with a feed inlet (14) at the bottom. The bottom of the feed inlet (14) matches the top of the dust removal tower (41). The feed inlet (14) is equipped with a solenoid valve.

9. A grain drying conveying and storage device according to claim 1, characterized in that: The bottom of the dust removal cooling box (2) is provided with a guide cylinder (22), and the bottom of the guide cylinder (22) is fixedly connected to the upper end of the conveying box (101).

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