Anti-blocking device for central pressure reducing pipe of squat silo

Through the design of anti-clogging devices, the rotating cone and spiral blades are used to disperse the grain, the buffer funnel cushions the falling grain, and the chute pipe disperses the grain, which solves the blockage problem of the central pressure relief pipe of the shallow silo, realizes the improvement of ventilation efficiency and safe storage of grain.

CN223402877UActive Publication Date: 2025-10-03LIDING ZHIGRAIN ENGINEERING TECHNOLOGY (HENAN) CO LTD
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Patent Information

Application Number
CN202422452291.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-10-03
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The central pressure relief pipe of the existing shallow silo is easily clogged during use, resulting in reduced ventilation efficiency, which in turn causes temperature and humidity differences in the grain, causing problems such as grain mold and insect infestation.

Method used

An anti-blocking device was designed, including an anti-blocking component and an anti-crushing mechanism. A rotating cone and spiral blades were used to disperse grain, a buffer funnel was used to buffer the falling speed of grain, and a multi-stage chute tube was used to disperse grain to prevent grain from settling and crushing in the feed pipe.

Benefits of technology

Effectively prevent grain blockage, maintain ventilation efficiency, reduce grain breakage rate, reduce temperature and humidity differences, and ensure safe grain storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-blocking device of a squat silo center pressure reducing pipe, and particularly relates to the technical field of granaries, the anti-blocking device comprises a pressure reducing pipe main body, the upper surface of the pressure reducing pipe main body is communicated with a feeding pipe, and an anti-blocking assembly is installed in the feeding pipe; and the anti-blocking assembly comprises a first motor, the first motor is fixedly installed in the feeding pipe, a gear is fixedly installed at the output end of the first motor, one side of the gear is meshed with a fluted disc, and the inner side of the fluted disc is fixedly connected with a rotary drum. Compared with the prior art, the anti-blocking assembly is arranged, the rotating cone is used for driving the second spiral blade to rotate on the inner side of the feeding pipe, then the rotating drum is used for driving the first spiral blade to rotate on the inner side of the feeding pipe, grains on the inner side of the feeding pipe can be effectively and rapidly dispersed, stagnation and deposition of the grains in the feeding pipe can be reduced, and the grain conveying efficiency is improved. And the mobility of grains can be kept, so that the risk of blockage is reduced, and good ventilation can be conveniently kept in the pressure reducing pipe main body.
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Description

Technical Field

[0001] The utility model relates to the technical field of granaries, and more specifically, to a device for preventing blockage of a central pressure-reducing pipe of a shallow circular silo. Background Art

[0002] The granary pressure reducing pipe, also known as the vent pipe or pressure reducing vent pipe, is an important device installed inside the granary. It is mainly used to adjust the air pressure and humidity to ensure the safe storage of grain.

[0003] Due to the differences in physical properties such as grain shape, particle size, surface state, density, and some impurities mixed in wheat, the grains are affected differently by friction, airflow buoyancy, etc. during movement, resulting in automatic grading of the grain pile entering the warehouse. Impurities and broken grains are concentrated in the central area, resulting in a small porosity in the central area. During the ventilation and temperature equalization (cooling) process, the temperature around the grain pile drops quickly, while the center cools down slowly, resulting in prolonged ventilation time and increased ventilation energy consumption. The key is that there is a significant temperature difference between the inside and outside of the grain pile, which can easily cause condensation in the grain pile, and then problems such as grain mildew and insects.

[0004] After searching, the Chinese patent with application number CN202120983747.9 discloses a ventilation and decompression central tube based on a shallow circular silo. The grain falls onto the first anti-crushing cone cap, and then slides to the bottom of the silo through multiple second anti-crushing cone caps, thereby buffering the impact and preventing the grain from colliding and breaking. At the same time, it prevents the automatic grading of the grain pile in the silo. At the same time, the main body of the central tube cooperates with the through holes on it to assist in the air supply to achieve air supply and heat dissipation from the central area of ​​the silo, thereby improving the ventilation effect.

[0005] When the above-mentioned ventilation and decompression center tube based on the shallow silo is actually used, grain will accumulate at the through-hole during the feeding process inside the decompression tube, causing the through-hole to be blocked, resulting in a sharp drop in ventilation efficiency, and aggravating the temperature and humidity differences inside the grain pile, thereby causing the grain to mold and be infested with insects, which is not conducive to the long-term safe storage of grain. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a device for preventing blockage of the central pressure-reducing pipe of a shallow silo, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The anti-blocking device of the central pressure reducing pipe of the shallow silo comprises a pressure reducing pipe body, the upper surface of which is connected to a feed pipe, and an anti-blocking component is installed inside the feed pipe;

[0009] The anti-blocking component includes a first motor, which is fixedly installed inside the feed pipe, and a gear is fixedly installed on the output end of the first motor, a toothed disc is meshed on one side of the gear, a rotating drum is fixedly connected to the inner side of the toothed disc, a first spiral blade is fixedly connected to the inner side of the rotating drum, and slide rods are fixedly connected to both ends of the rotating drum, two slide grooves are provided on the inside of the feed pipe, a support frame is fixedly connected to the inner side of the pressure reducing tube body, a second motor is arranged above the support frame, a rotating cone is fixedly installed on the output end of the second motor, and a second spiral blade is fixedly connected to the outer side of the rotating cone, the gear is rotatably connected inside the feed pipe, the inner side of the toothed disc is welded and fixed to the outer side of the rotating drum, and the slide rod is slidably connected inside the slide groove.

[0010] By adopting the above technical solution: the second motor is used to start the rotation of the rotating cone, so that the rotating cone can drive the second spiral blade to rotate, so that the spiral rotation of the second spiral blade facilitates the dispersion of grain, and at the same time the gear is engaged with the toothed disc, so that the toothed disc can drive the rotating drum to rotate, and the slide groove serves as a guide for the rotation and movement of the rotating drum, so that the rotating drum can drive the first spiral blade to rotate, and the spiral rotation of the first spiral blade can be used to quickly transport the grain downward.

[0011] As a further description of the above technical solution: an anti-crushing mechanism is installed on the inner side of the pressure reducing tube body, and the anti-crushing mechanism includes a first buffer funnel, which is fixedly connected to the inner side of the pressure reducing tube body, and a plurality of fixed rods are fixedly connected to the inner side of the pressure reducing tube body, and a second buffer funnel is fixedly connected to the inner side of the fixed rods, and a plurality of discharge holes are opened on the upper surface of the second buffer funnel, and the first buffer funnel is welded and fixed to the fixed rods and the inner side of the pressure reducing tube body, and the outer side of the second buffer funnel is welded and fixed to the fixed rods, and the discharge holes are evenly distributed on the outer side of the second buffer funnel.

[0012] By adopting the above technical solution: the first buffer funnel and the second buffer funnel are used to block the inside of the pressure reducing tube body, thereby facilitating buffering the impact force of the falling grain and reducing the breakage rate of the falling grain.

[0013] As a further description of the above technical solution: the outside of the pressure reducing pipe body is connected with multiple first chute tubes and second chute tubes, the second chute tube is installed on one side of the first chute tube, and the inside of the first chute tube and the second chute tube are both provided with a second discharge hole.

[0014] By adopting the above technical solution: multiple first chute tubes and second chute tubes facilitate multi-stage dispersion of grain into the shallow silo when grain is accumulated inside the pressure reducing tube body, thereby reducing the difficulty of unwinding the shallow silo.

[0015] As a further description of the above technical solution: a plurality of discharge ports are provided on the outer side of the pressure reducing pipe body, and a protective plate is fixedly connected to the outer side of the pressure reducing pipe body.

[0016] By adopting the above technical solution: multiple discharge ports facilitate the grain and airflow to pass through the pressure reducing pipe body into the shallow circular silo, and multiple protective plates can be used to protect the outside of the pressure reducing pipe body, so that the pressure reducing pipe body can maintain good support.

[0017] The technical effects and advantages of this utility model are:

[0018] 1. Compared with the existing technology, the anti-blocking component is provided. The second spiral blade is driven to rotate inside the feed pipe by the rotating cone, and the first spiral blade is driven to rotate inside the feed pipe by the rotating drum. This can effectively and quickly disperse the grain inside the feed pipe, help reduce the stagnation and sedimentation of grain in the feed pipe, help maintain the fluidity of the grain, thereby reducing the risk of blockage and facilitating good ventilation inside the pressure reducing pipe body.

[0019] 2. By setting up an anti-crushing mechanism, compared with the existing technology, multiple first buffer funnels and second buffer funnels are used to block the inside of the pressure reducing pipe body, which can effectively buffer the falling speed of the grain and prevent the grain from directly impacting the bottom or side wall of the pressure reducing pipe body, thereby preventing the grain from being crushed during the descent process and reducing the crushing rate of the falling grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 This is a schematic diagram of the top structure of the feed pipe of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the pressure reducing pipe body of the present utility model.

[0023] Figure 4 This is a schematic structural diagram of the second buffer funnel of the present utility model.

[0024] Figure 5 This is a schematic diagram of the internal structure of the feed pipe of the present invention.

[0025] Figure 6 This is a partial structural diagram of the connection between the feed pipe and the chute of the present invention.

[0026] Figure 7 This is a schematic diagram of the rotary drum structure of the present utility model.

[0027] The figures are marked as follows: 1. Pressure reducing pipe body; 2. Feeding pipe; 3. First motor; 4. Gear; 5. Sprocket; 6. Rotating drum; 7. First spiral blade; 8. Slide rod; 9. Slide chute; 10. Support frame; 11. Second motor; 12. Rotating cone; 13. Second spiral blade; 14. First buffer funnel; 15. Fixed rod; 16. Second buffer funnel; 17. Discharge hole one; 18. First chute tube; 19. Second chute tube; 20. Discharge hole two; 21. Discharge port; 22. Protective plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The embodiment of the present application discloses a device for preventing blockage of a central pressure reducing pipe of a shallow silo, comprising a pressure reducing pipe body 1, the upper surface of which is connected to a feed pipe 2, and an anti-blocking component is installed inside the feed pipe 2;

[0030] The anti-blocking component includes a first motor 3, which is fixedly installed inside the feed pipe 2, and a gear 4 is fixedly installed on the output end of the first motor 3. A toothed disc 5 is engaged on one side of the gear 4, and a rotating drum 6 is fixedly connected to the inside of the toothed disc 5. A first spiral blade 7 is fixedly connected to the inside of the rotating drum 6, and a slide rod 8 is fixedly connected to both ends of the rotating drum 6. Two chutes 9 are provided on the inside of the feed pipe 2, and a support frame 10 is fixedly connected to the inside of the pressure reducing tube body 1. A second motor 11 is provided above the support frame 10, and a rotating cone 12 is fixedly installed on the output end of the second motor 11. A second spiral blade 13 is fixedly connected to the outside of the rotating cone 12. The gear 4 is rotatably connected inside the feed pipe 2, the inner side of the toothed disc 5 is welded and fixed to the outer side of the rotating drum 6, and the slide rod 8 slides inside the chute 9 The second motor 11 is connected and the support frame 10 is used to drive the second motor 11 to rotate, so that the second motor 11 can drive the rotating cone 12 to rotate, and the rotating cone 12 can drive the second spiral blade 13 to rotate, which can effectively disperse the grain. At the same time, the first motor 3 is used to drive the gear 4 to rotate, so that the gear 4 engages and drives the toothed disk 5 to rotate, and the toothed disk 5 can drive the rotating drum 6 to rotate, so that the rotating drum 6 drives the two slide bars 8 to slide inside the slide groove 9, so that the two rotating drums 6 can drive the first spiral blade 7 to rotate. The spiral rotation of the first spiral blade 7 can quickly transport the grain downward, which helps to reduce the stagnation and deposition of grain in the feed pipe 2, helps to maintain the fluidity of the grain, and thus reduces the risk of blockage.

[0031] Reference Figure 3 and4 As shown, an anti-crushing mechanism is installed on the inner side of the pressure reducing tube body 1, and the anti-crushing mechanism includes a first buffer funnel 14, the first buffer funnel 14 is fixedly connected to the inner side of the pressure reducing tube body 1, a plurality of fixed rods 15 are fixedly connected to the inner side of the pressure reducing tube body 1, a second buffer funnel 16 is fixedly connected to the inner side of the fixed rod 15, and a plurality of discharge holes 17 are opened on the upper surface of the second buffer funnel 16. The first buffer funnel 14 and the fixed rod 15 are welded and fixed to the inner side of the pressure reducing tube body 1, and the outer side of the second buffer funnel 16 is welded and fixed to the fixed rod 15. The discharge holes 17 are evenly distributed on the outer side of the second buffer funnel 16. The first buffer funnel 14 and the second buffer funnel 16 are used to buffer the descending grain inside the pressure reducing tube body 1, which is beneficial to reducing the impact force of the falling grain, thereby preventing the grain from being broken due to impact, and reducing the breakage rate of the falling grain.

[0032] Reference Figure 1 and 2 As shown, the outside of the pressure reducing pipe body 1 is connected with a plurality of first chute tubes 18 and second chute tubes 19, the second chute tube 19 is installed on one side of the first chute tube 18, and the inside of the first chute tube 18 and the second chute tube 19 are provided with a discharge hole 20, and the outside of the pressure reducing pipe body 1 is provided with a plurality of discharge ports 21, and the outside of the pressure reducing pipe body 1 is fixedly connected with a protective plate 22. The first chute tube 18 and the second chute tube 19 are used to disperse the force of the grain when it flows out, so that the grain can be dispersed in multiple stages in the shallow circular silo, reducing the difficulty of flattening the grain storage bin, and the plurality of discharge ports 21 facilitate the grain to flow out of the inside of the pressure reducing pipe body 1, and at the same time facilitate the outside air to enter the shallow circular silo, thereby ensuring the ventilation rate inside the shallow circular silo.

[0033] Working principle of the utility model: The utility model is designed to prevent the blockage of the central pressure reducing pipe of the shallow round warehouse. The specific structure is shown in the attached manual. Figure 1-6As shown, in the present technical solution, through the mutual cooperation between various structures, when it is necessary to transport grain inside the shallow silo, the second motor 11 is started first, and the second motor 11 is used to drive the rotating cone 12 to rotate, so that the rotating cone 12 can drive the second spiral blade 13 to rotate, so that the grain can be dispersed by the second spiral blade 13, and at the same time the first motor 3 is started, and the first motor 3 is used to drive the gear 4 to rotate, so that the gear 4 is engaged and drives the toothed disc 5 to rotate, and the toothed disc 5 rotates and the top drum 6 is rotated, so that the + drum 6 can drive the slide bar 8 to rotate inside the chute 9, so that the drum 6 can drive the first spiral blade 7 to rotate inside the feed pipe 2, and the rotation of the first spiral blade 7 can accelerate the descent of the grain and prevent the grain from accumulating in the feed pipe 2. It can effectively prevent the grain from being blocked, and then the grain will fall inside the pressure reducing tube body 1, and the second buffer funnel 16 is provided with support force by the fixed rod 15, so that multiple second buffer funnels 16 can protect the falling grain inside the pressure reducing tube body 1, and can effectively buffer the falling grain, reduce the impact force of the falling grain, thereby preventing the grain from being broken during the falling process, and then the grain will flow to the inside of the shallow circular silo through the discharge port 21. When the grain accumulates inside the pressure reducing tube body 1, the grain will flow to the first chute tube 18 and the second chute tube 19 through the connecting port on the inner wall of the pressure reducing tube body 1, and the grain can be graded and flowed to the inside of the shallow circular silo at the same time through the discharge hole 20 in the first chute tube 18 and the second chute tube 19, so that the grain can be stored.

[0034] The drawings of the embodiments disclosed in the present invention only relate to the structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention may be combined with each other.

[0035] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned belong to the prior art and are not shown in the figures and will not be described here.

[0036] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preventing clogging of a central pressure reducing pipe of a shallow silo, comprising a pressure reducing pipe body (1), characterized in that: The upper surface of the pressure reducing pipe body (1) is connected to a feed pipe (2), and an anti-blocking component is installed inside the feed pipe (2); The anti-blocking component includes a first motor (3), the first motor (3) is fixedly installed inside the feed pipe (2), a gear (4) is fixedly installed on the output end of the first motor (3), a toothed disc (5) is meshed on one side of the gear (4), a rotating cylinder (6) is fixedly connected to the inner side of the toothed disc (5), a first spiral blade (7) is fixedly connected to the inner side of the rotating cylinder (6), a sliding rod (8) is fixedly connected to both ends of the rotating cylinder (6), two sliding grooves (9) are provided on the inner side of the feed pipe (2), a support frame (10) is fixedly connected to the inner side of the pressure reducing tube body (1), a second motor (11) is arranged above the support frame (10), a rotating cone (12) is fixedly installed on the output end of the second motor (11), and a second spiral blade (13) is fixedly connected to the outer side of the rotating cone (12).

2. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 1 is characterized in that: An anti-crushing mechanism is installed on the inner side of the decompression tube body (1), and the anti-crushing mechanism comprises a first buffer funnel (14). The first buffer funnel (14) is fixedly connected to the inner side of the decompression tube body (1), and a plurality of fixing rods (15) are fixedly connected to the inner side of the decompression tube body (1).

3. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 2, characterized in that: A second buffer funnel (16) is fixedly connected to the inner side of the fixing rod (15), and a plurality of discharge holes (17) are provided on the upper surface of the second buffer funnel (16).

4. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 1 is characterized in that: The outer side of the pressure reducing pipe body (1) is connected to a plurality of first chute pipes (18) and second chute pipes (19), the second chute pipes (19) are installed on one side of the first chute pipe (18), and the inner sides of the first chute pipe (18) and the second chute pipe (19) are both provided with a second discharge hole (20).

5. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 1 is characterized in that: A plurality of discharge ports (21) are provided on the outside of the pressure reducing pipe body (1), and a protective plate (22) is fixedly connected to the outside of the pressure reducing pipe body (1).

6. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 1, characterized in that: The gear (4) is rotatably connected inside the feed pipe (2), the inner side of the toothed disc (5) is welded and fixed to the outer side of the rotating drum (6), and the sliding rod (8) is slidably connected inside the sliding groove (9).

7. The anti-clogging device for the central pressure reducing pipe of a shallow silo according to claim 3, characterized in that: The outer side of the second buffer funnel (16) is welded and fixed to the fixing rod (15), and the first discharge holes (17) are evenly distributed on the outer side of the second buffer funnel (16).

Citation Information

Patent Citations

  • Ventilation and pressure reduction center pipe based on squat silo

    CN214628250U