A storage and conveying device for grain processing

Abstract

The present invention relates to the technical field of conveying equipment, specifically a storage and conveying equipment for grain processing, including a conveyor housing, a filtering and processing component, a control component, a recovery component and an enclosure component. A top cover is provided at the upper end of the conveyor housing, and a conveying joint is connected to one side of the conveyor housing. Negative pressure joints and back-blowing air bags are respectively connected on both sides of the top cover. When the rice is subjected to a negative pressure lifting operation, part of the rice dust generated by rice hulling can be filtered by a filter bag and then subjected to a secondary filtration treatment by a reinforced filter element, thereby improving the filtration quality and the safety of the negative pressure equipment. The reinforced filter element is arranged on one side of the control component, and its position is reasonable and reliable. At the same time, the filter component can collect and process the rice dust on the surface of the filter bag separately under various working conditions under the coordinated control of the recovery component and the control component, thereby realizing beneficial operations of the later processing without affecting the normal rice transportation. The filter element has complete functions and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and particularly to a storage and conveying equipment for grain processing. Background Art

[0002] Grain processing is a process of processing the grains harvested in the fields through processing equipment. When processing paddy rice, it is necessary to process the husks on the surface of the paddy rice, retain the plump rice grains, and then store the rice grains for subsequent filling and use.

[0003] The invention disclosed in the existing publication number CN113120638 A discloses a grain processing equipment including a feeding device, a grain separation device and a connecting device. The solution points out that when the grain separation device fails and needs to be repaired, it can better separate the grain separation device from the feed hopper, thus bringing positive significance to the rice grain and bran powder separation equipment. When rice is continuously produced and processed, after the rice grains and bran powder are separated, the rice grains need to be transported and stored. The transportation methods are mainly conveyor belts, screw conveyors and negative pressure lifting conveying equipment. Since the rice grains are relatively easy to break and fragment after shelling, the screw conveyor is easy to damage the rice grains during transportation. When using the conveyor belt method to transport the rice grains, large-angle lifting operations cannot be carried out. When using the negative pressure lifting conveying equipment for storing and using the rice grains, since there are still a large amount of powders after the rice grains are polished in the rice grains, during negative pressure transportation, the existing internal filtering mechanism of the equipment is relatively single, which is easy to cause pollution and damage to the negative pressure suction mechanism, and in the face of a large amount of rice grain dust, it cannot be effectively processed, and still brings negative impacts to each link during subsequent transfer and transportation. Summary of the Invention

[0004] The purpose of the present invention is to provide a storage and conveying equipment for grain processing to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A storage and conveying equipment for grain processing, including:

[0006] A conveyor housing, the upper end of the conveyor housing is provided with a top cover, one side of the conveyor housing is communicated with a conveying joint, and both sides of the top cover are respectively communicated with a negative pressure joint and an anti-blowing air bag;

[0007] A filtration treatment assembly, a building partition is horizontally arranged on one side of the conveyor housing close to the top cover, the filtration treatment assembly is arranged on the building partition, the filtration assembly includes a plurality of filtration support cylinders and a plurality of filtration cloth bags, and the plurality of filtration cloth bags are respectively arranged in the plurality of filtration support cylinders through a recovery assembly. The recovery assembly includes a central control rod and a plugging collection plate;

[0008] A control component, the control component is arranged at the upper end of the filter support cylinder, the control component includes a flange mounting plate and a self-rotating screw sleeve, and the upper end of the central control rod penetrates through the self-rotating screw sleeve;

[0009] A surrounding component, the surrounding component includes a first mating filter cylinder and a second mating filter cylinder, the flange mounting plate is movably sleeved on the filter support cylinder, the second mating filter cylinder is arranged on the outer peripheral side of the plugging and collecting plate, and the second mating filter cylinder is arranged corresponding to the first mating filter cylinder.

[0010] Preferably, a plurality of fixed circular grooves are formed in the top cover, the upper end of the filter support cylinder is inserted into the fixed circular grooves and is provided with a fixed plate, the lower end of the filter support cylinder is inserted into the conveyor housing, and the lower end of the filter support cylinder placed inside the conveyor housing is higher than the horizontal height of the conveying joint.

[0011] Preferably, a cloth bag mounting groove is horizontally formed at the lower end inside the filter support cylinder, the bag mouth of the filter cloth expands outward and is inserted into the cloth bag mounting groove, the cloth bag mounting groove is inserted with a cloth bag pressing ring through threads, and one side of the cloth bag pressing ring is in pressing contact with one side of the filter cloth inserted into the cloth bag mounting groove.

[0012] Preferably, the upper end of the central control rod is vertically movably arranged at the center inside the filter support cylinder, the lower end of the central control rod penetrates through the bottom center of the filter cloth, a first clamping support plate and a second clamping support plate are respectively arranged on both sides of the central control rod penetrating through the filter cloth, the first clamping support plate is fixedly connected with the central control rod, the second clamping support plate is fixedly connected with the central control rod through threads, the diameters of the first clamping support plate and the second clamping support plate are equal to the inner diameter of the filter cloth, and the diameters of the first clamping support plate and the second clamping support plate are smaller than the inner diameter of the filter support cylinder.

[0013] Preferably, a restraint ring is arranged at the lower end of the filter support cylinder, a plurality of guiding slide rods are vertically symmetrically arranged at the lower end of the restraint ring, a plurality of guiding holes are formed in the plugging and collecting plate, and the plurality of guiding holes in the plugging and collecting plate are respectively movably sleeved on the plurality of guiding slide rods.

[0014] Preferably, arc-shaped collecting grooves are formed at the centers of the upper ends of the plugging and collecting plates, a connecting bracket is welded at the upper end inside the arc-shaped collecting grooves, the lower end of the central control rod is fixedly arranged at the center of the connecting bracket through bolts, a central groove is formed through the center of the central control rod, and the lower end of the central groove penetrates through the connecting bracket and communicates with the arc-shaped collecting groove.

[0015] Preferably, an assembly seat is arranged on one side of the fixed plate of the filter support cylinder located inside the top cover, the flange mounting plate is horizontally fixedly arranged at the upper end of the assembly seat through a plurality of bolts, a plurality of strip-shaped air-permeable grooves are symmetrically formed through the guiding slide rods, a strengthened filter element is vertically arranged inside the assembly seat, and the upper and lower ends of the strengthened filter element are respectively abutted against the lower end of the flange mounting plate and the upper end of the fixed plate.

[0016] Preferably, a self-rotating screw sleeve is rotationally inserted through the center of the flange mounting disc by means of a sealed bearing. Synchronous gears are horizontally arranged at the upper ends of the self-rotating screw sleeves, and the synchronous gears are connected to each other by a toothed synchronous belt.

[0017] Preferably, a control internal thread is vertically and penetratingly opened in the center of the self-rotating screw sleeve. A control external thread is provided at the upper end of the central control rod. The upper end of the central control rod is threadedly inserted into the control internal thread of the self-rotating screw sleeve through the control external thread. A powder discharge hose is connected and inserted through the upper end of the central control rod placed inside the control internal thread. The powder discharge hose penetrates through the synchronous gear, and a centralized suction pipe is provided at the center of the upper end of the top cover.

[0018] Preferably, the first mating filter cartridge is movably arranged to prevent falling off through the restraint ring of the filter support cylinder. A downward pressure spring is provided at the upper end of the first mating filter cartridge. The downward pressure spring is sleeved on the filter support cylinder, and the upper end of the downward pressure spring abuts against the lower end of the fixed disc. The diameter of the second mating filter cartridge is larger than that of the first mating filter cartridge. The upper end of the second mating filter cartridge is movably sleeved on the lower end of the first mating filter cartridge. A plurality of retention holes are penetratingly opened on the first mating filter cartridge and the second mating filter cartridge, and the plurality of retention holes are all inclined from outside to inside.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] When performing a negative pressure lifting operation on rice, some rice dust generated during rice hulling can be subjected to secondary filtration treatment through the strengthening filter element after passing through the filter cloth bag, improving the filtration quality and the safety of the negative pressure equipment. The strengthening filter element is arranged on one side of the control assembly, with a reasonable and reliable position. At the same time, under the cooperative control of the recovery assembly and the control assembly, the filter assembly can separately collect and process the rice dust on the surface of the filter cloth bag under various working conditions, realizing beneficial operations in the subsequent processing without affecting the normal rice transportation, with complete functions and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0022] Figure 2 is a schematic partial side-cut structure diagram of the present invention;

[0023] Figure 3 is of the present invention Figure 2 Schematic diagram of part A;

[0024] Figure 4 is of the present invention Figure 3 Schematic diagram of part B;

[0025] Figure 5 is of the present invention Figure 3 Schematic diagram of part C;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of part D;

[0027] Figure 7 For the present invention Figure 5 Schematic diagram of part E;

[0028] Figure 8 For the present invention Figure 5 Schematic diagram of part F;

[0029] Figure 9 Schematic diagram of the overall installation structure of the filter support cylinder of the present invention;

[0030] Figure 10 Schematic diagram of the installation structure of the plugging and collecting tray of the present invention;

[0031] Figure 11 For the present invention Figure 10 Schematic diagram of part G;

[0032] Figure 12 Schematic diagram of the structure of the filter support cylinder of the present invention;

[0033] Figure 13 Schematic diagram of the installation structure of the central control rod of the present invention.

[0034] In the figure: conveyor housing 1, top cover 2, conveying joint 3, negative pressure joint 4, reverse air blowing bag 5, building partition 6, fixed circular groove 7, filter support cylinder 8, filter bag installation groove 9, filter bag 10, filter bag pressing ring 11, guiding slide rod 12, plugging and collecting tray 13, central control rod 14, first clamping support plate 15, second clamping support plate 16, control external thread 17, assembly seat 18, strip-shaped air permeable groove 19, flange mounting plate 20, self-rotating nut 21, synchronous gear 22, control internal thread 23, central groove 24, powder discharge hose 25, arc-shaped collecting groove 26, connecting bracket 27, first matching filter cartridge 28, pressing spring 29, second matching filter cartridge 30, retention hole 31, centralized suction pipe 33, reinforced filter element 34. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to the attached Figure 1-13 , and the following technical solutions are provided in this application.

[0037] Embodiment 1: A storage and conveying device for grain processing, including a conveyor housing 1, a top cover 2 is provided at the upper end of the conveyor housing 1, a conveying joint 3 is communicated and provided on one side of the conveyor housing 1, a negative pressure joint 4 and a reverse blowing air bag 5 are respectively communicated and provided on both sides of the top cover 2. During use, the negative pressure joint 4 is connected to a negative pressure suction device, and negative pressure is generated in the top cover 2 through the negative pressure joint 4. Similarly, the air in the conveyor housing 1 will also be sucked and lifted. At this time, after the air in the conveyor housing 1 is under negative pressure, it will lift the dehulled and separated rice grains through the conveying joint 3 and the connected conveying pipe. When the rice grains reach the inside of the conveyor housing 1, under the action of their own gravity, they will naturally fall to the bottom inside the conveyor housing 1 and wait to be discharged, or continuous discharging is carried out through a self-closing discharging device, realizing the safe and anti-fragmentation lifting and conveying of the rice grains.

[0038] A filtering and processing component is provided to filter the gas entering the top cover 2 from the conveyor housing 1, avoiding the dust in the rice being sucked into the negative pressure device and affecting the service life. A building partition 6 is horizontally provided on one side of the conveyor housing 1 close to the top cover 2, and the filtering and processing component is arranged on the building partition 6. The filtering component includes a number of filtering support cylinders 8 and a number of filtering cloth bags 10. A number of fixed circular grooves 7 are opened on the top cover 2. The upper end of the filtering support cylinder 8 is inserted into the fixed circular groove 7 and is provided with a fixed disk. The lower end of the filtering support cylinder 8 is inserted and arranged inside the conveyor housing 1, and the lower end of the filtering support cylinder 8 placed inside the conveyor housing 1 is higher than the horizontal height of the conveying joint 3. A cloth bag installation groove 9 is horizontally opened at the lower end inside the filtering support cylinder 8. The mouth of the filtering cloth bag 10 expands outward and is inserted into the cloth bag installation groove 9. The cloth bag installation groove 9 is inserted with a cloth bag pressing ring 11 through a thread, and one side of the cloth bag pressing ring 11 is in pressing contact with one side of the filtering cloth bag 10 inserted into the cloth bag installation groove 9. When the rice enters the conveyor housing 1 through the conveying joint 3, it will not directly contact the filtering support cylinder 8. At this time, the filtering cloth bag 10 installed below the filtering support cylinder 8 can filter the rice dust raised in the air. At the same time, the installation method of the filtering cloth bag 10 through the cloth bag pressing ring 11 facilitates the replacement and maintenance of the filtering cloth bag 10. One side of the filtering cloth bag 10 inserted into the cloth bag installation groove 9 can be a metal ring structure, and the connection is kept stable through pressing and fitting.

[0039] A number of filter cloth bags 10 are respectively arranged in a number of filter support cylinders 8 through a recycling component. The recycling component includes a central control rod 14 and a plugging and collecting plate 13. The upper end of the central control rod 14 is vertically movably arranged at the center inside the filter support cylinder 8. The lower end of the central control rod 14 penetrates through the center of the bottom of the filter cloth bag 10. On both sides of the central control rod 14 penetrating through the filter cloth bag 10, a first clamping support plate 15 and a second clamping support plate 16 are respectively arranged. The first clamping support plate 15 is fixedly connected with the central control rod 14, and the second clamping support plate 16 is fixedly connected with the central control rod 14 through threads. The diameters of the first clamping support plate 15 and the second clamping support plate 16 are equal to the inner diameter of the filter cloth bag 10, and the diameters of the first clamping support plate 15 and the second clamping support plate 16 are smaller than the inner diameter of the filter support cylinder 8. The central control rod 14 is fixedly connected with the bottom of the filter cloth bag 10. When the central control rod 14 is pressed downward, the filter cloth bag 10 will be pulled downward to keep the filter cloth bag 10 taut, thereby achieving a good filtering effect and avoiding the influence of the folds of the filter cloth bag 10 on the airflow. In addition, when the central control rod 14 drives the first clamping support plate 15 and the second clamping support plate 16 to rise, the bottom of the filter cloth bag 10 will move upward, and at this time, the inner and outer sides of the filter cloth bag 10 will be swapped.

[0040] A restraint ring is arranged at the lower end of the filter support cylinder 8. A number of guide slide rods 12 are vertically symmetrically arranged at the lower end of the restraint ring. A number of guide holes are opened on the plugging and collecting plate 13. A number of guide holes on the plugging and collecting plate 13 are respectively movably sleeved on a number of guide slide rods 12. An arc-shaped collecting groove 26 is opened at the center of the upper end of the plugging and collecting plate 13. A connecting bracket 27 is welded at the upper end inside the arc-shaped collecting groove 26. The lower end of the central control rod 14 is fixedly arranged at the center of the connecting bracket 27 through bolt insertion. A central groove 24 is penetrated and opened at the center of the central control rod 14. The lower end of the central groove 24 penetrates through the connecting bracket 27 and communicates with the arc-shaped collecting groove 26. The arc-shaped collecting groove 26 is used for collecting the rice dust falling on the surface of the filter cloth bag 10.

[0041] A control component is provided to control the up-and-down movement of the central control rod 14, and the inner and outer sides of the filter cloth bag 10 are swapped. The control component is arranged at the upper end of the filter support cylinder 8. The control component includes a flange mounting plate 20 and a self-rotating screw sleeve 21. The upper end of the central control rod 14 passes through the self-rotating screw sleeve 21. On one side of the fixed plate of the filter support cylinder 8 inside the top cover 2, there is an assembly seat 18. The flange mounting plate 20 is horizontally fixed to the upper end of the assembly seat 18 by a number of bolts. A number of strip-shaped air-permeable grooves 19 are symmetrically formed through the guiding slide rod 12. An enhanced filter element 34 is vertically arranged in the assembly seat 18. The upper and lower ends of the enhanced filter element 34 are respectively abutted against the lower end of the flange mounting plate 20 and the upper end of the fixed plate. The center of the flange mounting plate 20 is rotationally inserted with a self-rotating screw sleeve 21 through a sealed bearing. Synchronous gears 22 are horizontally arranged at the upper ends of the self-rotating screw sleeves 21. The synchronous gears 22 are connected by a toothed synchronous belt. A control internal thread 23 is vertically formed through the center of the self-rotating screw sleeve 21. A control external thread 17 is arranged at the upper end of the central control rod 14. The upper end of the central control rod 14 is threadedly inserted into the control internal thread 23 of the self-rotating screw sleeve 21 through the control external thread 17. A powder discharge hose 25 is connected and inserted into the upper end of the central control rod 14 placed in the control internal thread 23. The powder discharge hose 25 passes through the synchronous gear 22. A centralized suction pipe 33 is arranged at the center of the upper end of the top cover 2. Since the plugging collection plate 13 is connected to a number of vertically fixed guiding slide rods 12, the plugging collection plate 13 can only move up and down when the synchronous gear 22 rotates. When the central control rod 14 rises to the maximum extent, the upper end of the plugging collection plate 13 abuts against the lower end of the filter support cylinder 8. At this time, the inner and outer sides of the filter cloth bag 10 are swapped.

[0042] In this embodiment: when a negative pressure is generated inside the top cover 2, after the air inside the conveyor housing 1 is sucked away, both rice and air are sucked into the conveyor housing 1 from the conveying joint 3. The rice will fall to the lower part inside the conveyor housing under its own weight. Since the filter cloth bag 10 is in normal use, the central control rod 14 extends out of the filter support cylinder 8 and is in a taut posture. When the gas containing rice dust passes through the filter cloth bag 10, it is fully filtered. The filtered gas enters the filter support cylinder 8 and continues to rise. At this time, it passes through the enhanced filter element 34 for secondary filtration, then enters the top cover 2, and finally is sucked away by the negative pressure device connected by the negative pressure joint 4. When there is a lot of rice dust adhered to the surface of the filter cloth bag 10, the synchronous gear 22 rotates and moves to control the vertical lifting of the central control rod 14. During the upward movement of the filter cloth bag 10 along the central control rod 14, it is placed inside the filter support cylinder 8, and then the plugging collection plate 13 plugs the bottom of the filter support cylinder 8. At this time, the high-pressure gas stored in the reverse air bag 5 fills the top cover 2 with high-pressure gas, and then the high-pressure gas enters the filter support cylinder 8 through the enhanced filter element 34, and then blows back to the surface that was originally inside the filter cloth bag 10. At this time, the outer side of the filter cloth bag 10 with a large amount of dust accumulation is inside, and the high-pressure gas blows back, and the rice dust is blown into the arc-shaped collection groove 26 of the plugging collection plate 13, and then is sucked and discharged through the central groove 24 of the central control rod 14. At this time, the upper ends of the powder discharge hoses 25 are all connected to the centralized suction pipe 33, and the centralized suction pipe 33 can be connected to an environmental protection negative pressure suction device for subsequent green environmental protection treatment.

[0043] Embodiment 2: On the basis of Embodiment 1, a baffle component is provided, which is used to filter and gather more rice dust on the surface of the filter bag 10 and converge on the plugging and collecting tray 13. The baffle component includes a first matching filter cylinder 28 and a second matching filter cylinder 30. The flange mounting plate 20 is movably sleeved on the filter support cylinder 8. The second matching filter cylinder 30 is arranged on the outer peripheral side of the plugging and collecting tray 13, and the second matching filter cylinder 30 is arranged corresponding to the first matching filter cylinder 28. The first matching filter cylinder 28 is movably arranged through the restraint ring of the filter support cylinder 8 to prevent falling off. A downward pressure spring 29 is arranged at the upper end of the first matching filter cylinder 28. The downward pressure spring 29 is sleeved on the filter support cylinder 8, and the upper end of the downward pressure spring 29 abuts against the lower end of the fixed plate. The diameter of the second matching filter cylinder 30 is larger than that of the first matching filter cylinder 28. The upper end of the second matching filter cylinder 30 is movably sleeved on the lower end of the first matching filter cylinder 28. A number of retention holes 31 are formed through the first matching filter cylinder 28 and the second matching filter cylinder 30. The number of retention holes 31 are all inclined from outside to inside. When the conveyor housing 1 is in continuous rice conveying operation, the filter bag 10 can be gas backblown through the backblowing air bag 5 when it does not retract into the filter support cylinder 8. At this time, a small amount of rice dust on the surface of the filter bag 10 can be in the first matching filter cylinder 28 and the second matching filter cylinder 30 after backblowing, and then under the action of the inclined downward retention holes 31, more dust will fall on the upper end of the plugging and collecting tray 13. At this time, the powder discharge hose 25 generates a negative pressure suction force, which can form a negative pressure state in the arc-shaped collecting groove 26, accelerating the suction treatment of rice dust and avoiding the continuous influence of rice dust during the subsequent rice conveying process.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A storage and conveying device for grain processing, characterized in that , including: A conveyor housing (1), with a top cover (2) provided at the upper end of the conveyor housing (1). A conveying joint (3) is communicatively connected to one side of the conveyor housing (1), and a negative pressure joint (4) and a back-blowing air bag (5) are communicatively connected to both sides of the top cover (2) respectively; A filtering and processing assembly. A building partition (6) is horizontally provided inside the conveyor housing (1) near the top cover (2). The filtering and processing assembly is arranged on the building partition (6). The filtering and processing assembly includes a number of filtering support cylinders (8) and a number of filtering cloth bags (10). The number of filtering cloth bags (10) are respectively arranged inside the number of filtering support cylinders (8) through a recovery assembly. The recovery assembly includes a central control rod (14) and a plugging and collecting disc (13); A control assembly. The control assembly is arranged at the upper end of the filtering support cylinder (8). The control assembly includes a flange mounting disc (20) and a self-rotating screw sleeve (21), and the upper end of the central control rod (14) penetrates through the self-rotating screw sleeve (21); A surrounding assembly. The surrounding assembly includes a first mating filter cylinder (28) and a second mating filter cylinder (30). The flange mounting disc (20) is movably sleeved on the filtering support cylinder (8). The second mating filter cylinder (30) is arranged on the outer peripheral side of the plugging and collecting disc (13), and the second mating filter cylinder (30) is arranged corresponding to the first mating filter cylinder (28); The upper end of the central control rod (14) is vertically movably arranged at the center inside the filtering support cylinder (8). The lower end of the central control rod (14) penetrates through the bottom center of the filtering cloth bag (10). First clamping support plates (15) and second clamping support plates (16) are respectively arranged on both sides of the central control rod (14) penetrating through the filtering cloth bag (10). The first clamping support plate (15) is fixedly connected to the central control rod (14), and the second clamping support plate (16) is fixedly connected to the central control rod (14) through threads; An arc-shaped collecting groove (26) is opened at the center of the upper end of the plugging and collecting disc (13). A connecting bracket (27) is welded at the upper end inside the arc-shaped collecting groove (26). The lower end of the central control rod (14) is fixedly arranged at the center of the connecting bracket (27) through bolt insertion. A central groove (24) is opened through the center of the central control rod (14). The lower end of the central groove (24) penetrates through the connecting bracket (27) and is communicated with the arc-shaped collecting groove (26). A powder discharge hose (25) is communicatively inserted and arranged at the upper end of the central control rod (14). The rotation of the self-rotating screw sleeve (21) drives the central control rod (14) to move up and down.

2. The storage and conveying equipment for grain processing according to claim 1, characterized in that: A number of fixed circular grooves (7) are opened on the top cover (2). The upper end of the filtering support cylinder (8) is inserted and fixed in the fixed circular grooves (7) and is provided with a fixed disc. The lower end of the filtering support cylinder (8) is inserted and arranged inside the conveyor housing (1), and the lower end of the filtering support cylinder (8) placed inside the conveyor housing (1) is higher than the horizontal height of the conveying joint (3).

3. A storage and conveying device for grain processing according to claim 2, characterized in that: A cloth bag installation groove (9) is horizontally opened at the lower end inside the filter support cylinder (8). The mouth of the filter cloth bag (10) expands outward and is inserted into the cloth bag installation groove (9). A cloth bag pressing ring (11) is inserted into the cloth bag installation groove (9) through threads, and one side of the cloth bag pressing ring (11) is in pressing contact with one side of the filter cloth bag (10) inserted into the cloth bag installation groove (9).

4. A storage and conveying device for grain processing according to claim 3, wherein: The diameters of the first clamping support plate (15) and the second clamping support plate (16) are equal to the inner diameter of the filter cloth bag (10), and the diameters of the first clamping support plate (15) and the second clamping support plate (16) are smaller than the inner diameter of the filter support cylinder (8).

5. A storage and conveying device for grain processing according to claim 4, characterized in that: A restraint ring is provided at the lower end of the filter support cylinder (8). A number of guiding slide rods (12) are vertically and symmetrically provided at the lower end of the restraint ring. A number of guiding holes are opened on the plugging and collecting tray (13), and the a number of guiding holes on the plugging and collecting tray (13) are respectively movably sleeved on a number of guiding slide rods (12).

6. A storage and conveying device for grain processing according to claim 5, characterized in that: An assembly seat (18) is provided on one side of the fixed disk of the filter support cylinder (8) inside the top cover (2). The flange mounting disk (20) is horizontally fixed on the upper end of the assembly seat (18) through a number of bolts. A number of strip-shaped air-permeable grooves (19) are symmetrically penetrated and opened on the guiding slide rods (12). A reinforced filter element (34) is vertically provided inside the assembly seat (18), and the upper and lower ends of the reinforced filter element (34) are respectively abutted against the lower end of the flange mounting disk (20) and the upper end of the fixed disk.

7. A storage and conveying device for grain processing according to claim 6, characterized in that: A self-rotating screw sleeve (21) is rotationally inserted through a sealing bearing at the center of the flange mounting disk (20). Synchronous gears (22) are horizontally provided at the upper ends of the self-rotating screw sleeves (21), and a number of synchronous gears (22) are connected by a toothed synchronous belt.

8. A storage and conveying device for grain processing according to claim 7, characterized in that: A control internal thread (23) is vertically penetrated and opened at the center of the self-rotating screw sleeve (21). A control external thread (17) is provided at the upper end of the central control rod (14). The upper end of the central control rod (14) is threadedly inserted into the control internal thread (23) of the self-rotating screw sleeve (21) through the control external thread (17). A powder discharge hose (25) is connected and inserted at the upper end of the central control rod (14) placed inside the control internal thread (23). The powder discharge hose (25) penetrates through the synchronous gear (22). A centralized suction pipe (33) is provided at the center of the upper end of the top cover (2).

9. A storage and conveying device for grain processing according to claim 8, characterized in that: The first matching filter cylinder (28) is movably arranged through the restraint ring of the filter support cylinder (8) to prevent it from falling off. A downward pressing spring (29) is provided at the upper end of the first matching filter cylinder (28). The downward pressing spring (29) is sleeved on the filter support cylinder (8), and the upper end of the downward pressing spring (29) is abutted against the lower end of the fixed disk. The diameter of the second matching filter cylinder (30) is larger than the diameter of the first matching filter cylinder (28). The upper end of the second matching filter cylinder (30) is movably sleeved on the lower end of the first matching filter cylinder (28). A number of retention holes (31) are penetrated and opened on the first matching filter cylinder (28) and the second matching filter cylinder (30), and a number of retention holes (31) are all inclined from the outside to the inside.

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