Multifunctional radial ventilation system for central pipe of squat silo
By designing a multifunctional central tube radial ventilation system in the shallow silo, combined with overflow and buffer devices, uniform grain discharge and all-round ventilation are achieved, solving the problems of incomplete ventilation and moisture stratification in the shallow silo, and improving grain storage stability and quality.
Patent Information
- Application Number
- CN202422627575.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Incomplete ventilation and ventilation dead corners in shallow silos lead to high local temperature and humidity, causing problems such as grain moisture, mildew, and nodules. In addition, the grain is easily crushed and squeezed during the grain feeding process.
A multifunctional radial ventilation system with a central tube for shallow silos is designed, which includes a multifunctional central tube, a top air collecting box, a bottom air collecting box, radial ventilation ducts, etc. The system cooperates with a fan, an overflow device and a buffer device to achieve uniform grain discharge and all-round ventilation, thus solving the problems of uneven ventilation and moisture stratification.
It effectively improves the stability of stored grain, reduces the grain breakage rate and mildew risk, and ensures grain quality.
Smart Images
Figure CN223322541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shallow silos, in particular to a multifunctional radial ventilation system for a central tube of a shallow silo. Background Art
[0002] Shallow silos have the characteristics of large single-bin capacity, small footprint, slow heat exchange between the grain pile and the outside world, high degree of automation, and low construction cost. However, because shallow silos still load grain from the top of the silo, grain falls from a height of 10 to 30 meters. Under the influence of its own gravity, the grain is easily crushed and squeezed during the grain feeding process. In addition, the grain contains some impurities, and automatic grading during the grain feeding process is also relatively serious. After the grain is stored in the silo, the respiration of organisms, grain grains, microorganisms, pests, etc. in the grain pile will generate heat.
[0003] The existing ventilation conditions easily lead to the disadvantages of incomplete ventilation and ventilation dead corners, resulting in high local temperature and humidity in the granary, substandard grain storage conditions, and the occurrence of adverse phenomena such as grain moisture, mildew, and nodules. In response to the above problems, after continuous research, it was found that a multifunctional central tube and radial ventilation device were set in the granary. Utility Model Content
[0004] The purpose of the utility model is to provide a multifunctional radial ventilation system for the central tube of a shallow circular silo, in which grain falls from the grain inlet on the top of the silo into the middle collecting hopper, passes through the overflow device and the buffer device inside the middle collecting hopper, and then passes through the inner cylinder of the top air collecting box, and then falls into the center tube of the multifunctional central tube. After passing through a group of overflow devices and buffer devices inside the center tube, the grain is discharged from the grain outlet opened on the center tube from bottom to top in sequence, and the height of the grain in the silo gradually increases. After the grain reaches the distributor interface of the middle collecting hopper, it begins to be evenly discharged from the distributor outlet, thereby reducing the breakage rate. After the grain is put into the silo, the multifunctional central tube, the ventilation trough, the top air collecting box, the bottom air collecting box, the radial ventilation duct, etc. can be used in conjunction with the relevant fans to solve the problems of uneven and incomplete ventilation in the silo, as well as the phenomenon of large moisture stratification during ventilation, thereby effectively improving the stability of grain storage.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a shallow circular silo central tube multifunctional radial ventilation system, comprising a silo body; a multifunctional central tube is provided inside the silo body, a top air collecting box is provided on the top of the multifunctional central tube, a collecting hopper is installed between the top air collecting box and the silo top, a grain inlet is opened on the silo body at the top of the collecting hopper, a distributor is provided on the circumference of the collecting hopper, a group of overflow devices and buffer devices are welded in the first hopper inside the collecting hopper, a mechanical vent and a natural vent for discharging the humid and hot gas in the silo are provided on the top of the silo, a multifunctional central tube is provided inside the silo body, a top air collecting box is provided on the top of the multifunctional central tube, a collecting hopper is installed between the top air collecting box and the silo top, a distributor is provided on the circumference of the collecting hopper, a side hole is opened on the outer cylinder of the top air collecting box, which is connected to the centrifugal fan on the silo top through a pipeline, a valve and a bottom plate.
[0006] As a further description of the above technical solution:
[0007] The collecting hopper includes a peripheral distribution interface in the middle, and the distribution interface is connected to the distribution device through bolts, and a grain outlet is opened on the bottom plate of the distribution device.
[0008] As a further description of the above technical solution:
[0009] The reinforcement frame of the distributor is connected to the hanger through bolts, and the distributor passes through the hopper frame and is suspended on the top of the warehouse body through the hanger.
[0010] As a further description of the above technical solution:
[0011] The bottom cylinder of the collecting hopper is connected to the inner cylinder arranged inside the top wind box, and the bottom of the inner cylinder is connected to the central tube body of the multifunctional central tube. A group of overflow devices and buffer devices are arranged at regular intervals inside the central tube. A bottom cone tip is provided at the bottom of the central tube, and grain outlets are opened in the upper, middle and lower parts of the central tube.
[0012] As a further description of the above technical solution:
[0013] There is a plum blossom hole on the bottom plate 2 of the top air collecting box; the plum blossom hole on the bottom plate 2 of the air collecting box is connected to the plum blossom petal ventilation pipe welded on the periphery of the multifunctional central tube, and the plum blossom petal ventilation pipe on the periphery of the multifunctional central tube has a bridge-type ventilation hole below one-half.
[0014] As a further description of the above technical solution:
[0015] The plum blossom-petal ventilation pipe on the circumference of the multifunctional central tube is connected with a plum blossom hole opened on the top plate of the bottom air collecting box, and holes are opened between the top air collecting box and the outer cylinder.
[0016] As a further description of the above technical solution:
[0017] The ventilation ground trough is connected or cut off with the radial ventilation duct arranged on the inner periphery of the warehouse and the ventilation trough on the outer side of the warehouse bottom through a three-way valve. Bridge ventilation holes are opened on the wall of the radial ventilation duct, and bridge ventilation holes are also opened on the top plate of the radial ventilation duct.
[0018] As a further description of the above technical solution:
[0019] The three-way valve is fixed on the bin body, and the position of the valve plate is controlled by a hand wheel on the three-way valve; the valve plate has two control positions, control position one and control position two.
[0020] The utility model provides a multifunctional radial ventilation system with a central tube for a shallow circular silo, which has the following beneficial effects:
[0021] In the utility model, the problems of uneven and incomplete ventilation in the warehouse and the large moisture stratification during ventilation are solved by utilizing a multifunctional central tube, a ventilation trough, a top air collecting box, a bottom air collecting box, radial ventilation ducts and the like in conjunction with relevant fans, thereby effectively improving the stability of grain storage. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a structural diagram of a multifunctional radial ventilation system with a central tube for a shallow silo proposed in the utility model;
[0023] Figure 2 This is a partially enlarged and disconnected schematic diagram of a multifunctional radial ventilation system with a central tube in a shallow silo in the present invention;
[0024] Figure 3 For this utility model Figure 2 Cross-sectional view at AA in the middle;
[0025] Figure 4 This is a schematic structural diagram of the top air collecting box in the present utility model;
[0026] Figure 5 This is a schematic structural diagram of the bottom air collecting box in the utility model;
[0027] Figure 6 This is a schematic structural diagram of the three-way valve in the utility model;
[0028] Figure 7 This is a schematic structural diagram of the radial ventilation duct in the present invention;
[0029] Figure 8 This is a schematic diagram of the control position of the three-way valve in the utility model;
[0030] Legend: 1. Centrifugal fan on silo roof; 2. Distributor; 21. Hanger; 22. Bottom plate 1; 23. Reinforced frame; 3. Collecting hopper; 31. First hopper; 311. Distribution interface; 32. Hopper frame; 4. Top air collecting box; 41. Inner cylinder; 42. Outer cylinder; 43. Bottom plate 2; 5. Valve; 6. Overflow device; 7. Buffer device; 8. Multifunctional central pipe; 81. Central pipe body; 82 , bottom cone tip; 83, plum petal ventilation pipe; 9, silo body; 91, grain inlet; 10, bottom air box; 101, top plate 1; 102, outer cylinder; 11, ventilation trough; 111, top plate 2; 12, three-way valve; 121, handwheel; 122, valve plate; 13, ventilation slot; 14, radial ventilation duct; 141, pipe wall; 142, top plate 3; 15, natural vent; 16, mechanical vent DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0032] Reference Figures 1 to 8 A multifunctional radial ventilation system of a shallow circular silo central tube comprises a silo body 9; a multifunctional central tube 8 is provided inside the silo body 9, a top air collecting box 4 is provided on the top of the multifunctional central tube 8, a collecting hopper 3 is installed between the top air collecting box 4 and the silo top, a grain inlet 91 is opened on the silo body 9 at the top of the collecting hopper 3, a distributor 2 is provided on the circumference of the collecting hopper 3, a group of overflow devices 6 and a buffer device 7 are welded in the first hopper 31 inside the collecting hopper 3, a mechanical ventilation port 16 and a natural ventilation port 15 for discharging hot and humid gas in the silo are provided on the top of the silo body 9, a multifunctional central tube 8 is provided inside the silo body 9, a top air collecting box 4 is provided on the top of the multifunctional central tube 8, a collecting hopper 3 is installed between the top air collecting box 4 and the silo top, a distributor 2 is provided on the circumference of the collecting hopper 3, a side hole is opened on the outer cylinder 42 of the top air collecting box 4, which is connected to the centrifugal fan 1 on the silo top through a pipeline and a valve bottom plate 2 43; 5;
[0033] The collecting hopper 3 includes a peripheral distribution interface 311 in the middle, and the distribution interface 311 is connected to the distributor 2 by bolts. The bottom plate 22 of the distributor 2 is provided with a grain outlet; the reinforcement frame 23 of the distributor 2 is connected to the hanger 21 by bolts, and the distributor 2 passes through the hopper frame 32 and is suspended on the top of the silo 9 by the hanger 21; the bottom cylinder of the collecting hopper 3 is connected to the inner cylinder 41 set inside the top wind box 4, and the bottom of the inner cylinder 41 is connected to the central tube body 81 of the multifunctional central tube 8. A group of overflow devices 6 and buffer devices 7 are arranged at regular intervals inside the central tube, and a bottom cone tip 82 is arranged at the bottom of the central tube. , grain outlets are provided in the upper, middle and lower parts of the central tube; in this way, grain falls into the first hopper 31 from the grain inlet 91 on the top of the silo, passes through the overflow device 6 and the buffer device 7 inside the first hopper 31, and then passes through the inner cylinder 41 of the top wind box 4, and then falls into the central tube of the multifunctional central tube 8. After passing through a group of overflow devices 6 and buffer devices 7 inside the central tube, the grain is discharged from the grain outlets opened on the central tube from bottom to top in sequence, and the grain height in the granary gradually increases. After the grain reaches the distribution interface 311 of the first hopper 31, it begins to be evenly discharged from the grain outlet of the distributor 2 to reduce the breakage rate.
[0034] There are plum blossom holes on the bottom plate 2 43 of the top wind collecting box 4; the plum blossom holes on the bottom plate 2 43 of the wind collecting box are connected with the plum blossom petal ventilation pipe 83 welded on the periphery of the multifunctional central tube 8, and the plum blossom petal ventilation pipe 83 on the periphery of the multifunctional central tube 8 has a bridge-type ventilation hole below one half; the plum blossom petal ventilation pipe 83 on the periphery of the multifunctional central tube 8 is connected with the plum blossom holes opened on the top plate 101 of the bottom wind collecting box 10, and the top wind collecting box 4 has a hole in the outer cylinder 102; the ventilation floor trough 11 is connected or cut off with the radial ventilation duct 14 arranged on the inner periphery of the warehouse and the ventilation groove 13 on the outside of the warehouse bottom through the three-way valve 12, and a bridge-type ventilation hole is opened on the pipe wall 141 of the radial ventilation duct 14, and the top plate 3 142 of the radial ventilation duct 14 Bridge-type ventilation holes are also opened; the three-way valve 12 is fixed on the warehouse body 9, and the position of the valve plate 122 is controlled by the handwheel 121 on the three-way valve 12; the valve plate 122 has two control positions, control position one and control position two; ventilation of different areas in the warehouse is achieved through different control positions, and it is connected with the ventilation trough 11 at the bottom of the warehouse through a pipe, and a bridge-type ventilation hole is opened on the top plate 111 of the ventilation trough 11; after the grain is put into the warehouse, the multifunctional central pipe 8, the ventilation trough 11, the top wind box 4, the bottom wind box 10, the radial ventilation duct 14 and the like are used in conjunction with the relevant fans to solve the problems of uneven and incomplete ventilation in the warehouse, as well as the phenomenon of large moisture stratification during ventilation, thereby effectively improving the stability of grain storage.
[0035] Working principle: grain falls into the first hopper 31 from the grain inlet 91 on the top of the silo, passes through the overflow device 6 and the buffer device 7 inside the first hopper 31, and then passes through the inner cylinder 41 of the top air collecting box 4, and then falls into the center tube of the multifunctional central tube 8. After passing through a group of overflow devices 6 and buffer devices 7 inside the center tube, the grain is discharged from the grain outlet opened on the center tube from bottom to top in sequence. The height of grain in the granary gradually increases. After the grain reaches the distribution interface 311 of the first hopper 31, it begins to be evenly discharged from the grain outlet of the distributor 2. Ventilation of different areas in the silo is achieved through different control positions, and the grain is connected to the ventilation trough 11 at the bottom of the silo through a pipe. A bridge-type ventilation hole is provided on the top plate 111 of the ventilation trough 11. After the grain enters the silo, the multifunctional central tube 8, the ventilation trough 11, the top air collecting box 4, the bottom air collecting box 10, the radial ventilation duct 14, etc. can be used in conjunction with relevant fans to solve the problems of uneven and incomplete ventilation in the silo, as well as the phenomenon of large moisture stratification during ventilation.
Claims
1. A multifunctional radial ventilation system for a shallow silo central tube, characterized in that: It includes a warehouse body (9) and a ventilation trough (11); A multifunctional central tube (8) is provided inside the silo (9), a top wind box (4) is provided on the top of the multifunctional central tube (8), a collecting hopper (3) is installed between the top wind box (4) and the silo top, a grain inlet (91) is provided on the top silo (9) of the collecting hopper (3), and a distributor (2) is provided on the circumference of the collecting hopper (3); A set of overflow devices (6) and buffer devices (7) are welded inside the first hopper (31) inside the collecting hopper (3), and a mechanical vent (16) and a natural vent (15) for discharging hot and humid gas in the hopper are provided on the top of the hopper body (9); A multifunctional central tube (8) is provided inside the silo body (9), a top air collecting box (4) is provided on the top of the multifunctional central tube (8), a collecting hopper (3) is installed between the top air collecting box (4) and the silo top, a distributor (2) is provided on the circumference of the collecting hopper (3), and a side hole is provided on the outer cylinder (42) of the top air collecting box (4), which is connected to the centrifugal fan (1) on the silo top through a pipeline, a valve (5), and a second bottom plate (43).
2. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1 is characterized in that: The collecting hopper (3) includes a peripheral distribution interface (311) in the middle, and the distribution interface (311) is connected to the distribution device (2) through bolts, and a bottom plate (22) of the distribution device (2) is provided with a grain outlet.
3. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1 is characterized in that: The reinforcement frame (23) of the distributor (2) is connected to the hanger (21) via bolts, and the distributor (2) passes through the hopper frame (32) and is suspended on the top of the bin body (9) via the hanger (21).
4. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1 is characterized in that: The bottom cylinder of the collecting hopper (3) is connected to the inner cylinder (41) arranged inside the top wind collecting box (4), and the bottom of the inner cylinder (41) is communicated with the central tube body (81) of the multifunctional central tube (8). A group of overflow devices (6) and buffer devices (7) are arranged at regular intervals inside the central tube. A bottom cone tip (82) is provided at the bottom of the central tube, and grain outlets are provided at the upper, middle and lower parts of the central tube.
5. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1 is characterized in that: The second bottom plate (43) of the top air collecting box (4) is provided with a plum blossom hole; the plum blossom hole on the second bottom plate (43) of the air collecting box is connected to the plum blossom petal ventilation pipe (83) welded on the circumference of the multifunctional central tube (8), and the plum blossom petal ventilation pipe (83) on the circumference of the multifunctional central tube (8) is provided with a bridge-type ventilation hole below one-half.
6. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1, characterized in that: The plum blossom-shaped ventilation pipe (83) on the circumference of the multifunctional central tube (8) is connected to a plum blossom hole provided on the top plate (101) of the bottom air collecting box (10), and holes are provided on the top air collecting box (4) and the outer cylinder (102).
7. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 1, characterized in that: The ventilation trough (11) is connected or disconnected with the radial ventilation duct (14) arranged on the inner peripheral surface of the warehouse and the ventilation trough (13) on the outer side of the warehouse bottom through a three-way valve (12). A bridge-type ventilation hole is provided on the pipe wall (141) of the radial ventilation duct (14), and a bridge-type ventilation hole is also provided on the top plate (142) of the radial ventilation duct (14).
8. The multifunctional radial ventilation system for the central tube of a shallow silo according to claim 7, characterized in that: The three-way valve (12) is fixed on the bin body (9), and the position of the valve plate (122) is controlled by a hand wheel (121) on the three-way valve (12); the valve plate (122) has two control positions, control position one and control position two.