Silo structure

Abstract

The present invention discloses a silo structure, including a first lifting mechanism, a second lifting mechanism, a reversible conveying device, an upper loading hopper, a lower unloading hopper and an opening and closing door mechanism; the first lifting mechanism includes a loading and unloading tower and a first lifting guide column; the loading and unloading tower is provided with a lifting channel, and the side wall of the lifting channel is provided with a plurality of material passing windows and a vertical lane; the first lifting guide column is arranged in the lifting channel; the second lifting mechanism includes a second lifting guide column; the reversible conveying device includes a head roller lifting and cooperating with the first lifting guide column, a bending point roller lifting and cooperating with the second lifting guide column, and a conveyor belt wound around the head roller and the bending point roller, and the lane gives way to the lifting and moving of the conveyor belt; the upper loading hopper and the lower unloading hopper are respectively arranged above and below the head roller, and are lifted and lowered synchronously with the head roller; the opening and closing door mechanism is arranged relative to the material passing window, and is used to open and close the material passing window. The present invention can reduce the useless power consumption of the conveying mechanism and improve the potential energy conversion efficiency of the silo material.

Description

Technical Field

[0001] The invention relates to the technical field of material energy storage, in particular to a silo structure. Background Art

[0002] The feed and discharge points of the existing storage silo are fixed in elevation, that is, the feed point is set at the highest point of the silo, and the feed conveying mechanism needs to lift and transport the materials to this point and then throw them into the silo; while the discharge point is set at the lowest point of the silo, and the materials flow down from the silo to the discharge conveying mechanism below by their own weight.

[0003] The feeding and discharging mechanisms of existing storage silos have the problem of potential energy waste: when the silo material level is low, the material still needs to be transported to the highest point of the silo and then thrown into the silo. The driving power of the feeding and conveying mechanism corresponding to the height potential energy difference between the silo material surface and the throwing point is equivalent to the invalid power; and when discharging, no matter what the silo height is, the material potential energy acting on the discharging and conveying mechanism can only be calculated from the bottom of the silo, and the static potential energy of the material when stored in the silo cannot play a role, which actually reduces the overall conversion rate of the entire material energy storage system. In addition, high-drop throwing causes dust and structural impact on the environment inside the silo; discharging under high load conditions places higher power requirements on the discharging equipment and receiving equipment, which will ultimately reduce the overall conversion rate of the energy storage system. Summary of the invention

[0004] The object of the present invention is to provide a silo structure, reduce the useless power consumption of the conveying mechanism, and improve the potential energy conversion efficiency of the silo material.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A silo structure, comprising a first lifting mechanism, a second lifting mechanism, a reversible conveying device, an upper loading hopper, a lower unloading hopper and an opening and closing door mechanism; the first lifting mechanism comprises a loading and unloading tower and a first lifting guide column; the loading and unloading tower has a vertical lifting passage, the side wall of the lifting passage is provided with a plurality of layers, a plurality of material transfer windows on each layer, and a vertically arranged laneway; the first lifting guide column is arranged in the lifting passage; the second lifting mechanism comprises a second lifting guide column; the reversible conveying device comprises a head roller which is lifted and lowered with the first lifting guide column, a bending point roller which is lifted and lowered with the second lifting guide column, and a conveyor belt which is wound around the head roller and the bending point roller, and the laneway gives way to the lifting and lowering movement of the conveyor belt; the upper loading hopper and the lower unloading hopper are respectively arranged above and below the head roller, and are lifted and lowered synchronously with the head roller; the opening and closing door mechanism is arranged opposite to the material transfer window, and is used for movably opening and closing the material transfer window.

[0007] The silo structure also includes a lifting frame; the lifting frame cooperates with the first lifting guide column in lifting and lowering, and the head roller, the upper loading hopper, and the lower unloading hopper are all installed on the lifting frame.

[0008] The lifting frame is provided with a guide wheel group; the guide wheel group is in sliding cooperation with the first lifting guide column.

[0009] The silo structure also includes a head funnel and a branch material pipe; the head funnel is arranged at the end position of the reversible conveying device, and its lower end is connected to the branch material pipe, and the lower end of the branch material pipe is connected to the upper end of the lower discharge hopper.

[0010] The lifting frame is provided with a stepping drive motor, the stepping drive motor is provided with a gear, and the first lifting guide column is provided with a rack for matching with the gear.

[0011] The loading and unloading tower comprises two tower bodies with semicircular cross-sections and an arc-shaped retaining wall connected to the ends of one side of the two tower bodies. A certain distance is left between the other sides of the two tower bodies to form the lane.

[0012] The first lifting mechanism and the second lifting mechanism are both equipped with counterweights of corresponding weights.

[0013] The upper end of the upper loading hopper is connected to the side wall of the loading and unloading tower, and a plurality of feeding ports are provided corresponding to each material passing window; the lower end of the lower unloading hopper is connected to the side wall of the loading and unloading tower, and a plurality of discharging ports are provided corresponding to each material passing window.

[0014] The door opening and closing mechanism includes a door leaf, a first track, a second track and a driving device; the door leaf corresponds to the material transfer window one by one, and the first track and the second track are respectively arranged above and below the door leaf, and is opened and closed under the action of the driving device.

[0015] The silo structure utilizes the dead material pile when the materials are piled up to form a natural enclosure structure, and no wall structure is provided.

[0016] After adopting the above technical scheme, the present invention sets the first lifting mechanism and the second lifting mechanism at the head and the bending point of the reversible conveying device to cooperate to ensure that the inclination angle of the conveyor belt and the horizontal plane meets the maximum inclination angle requirement for conveying specific materials. When feeding materials to the silo through the reversible conveying device in the forward direction, the distance between the drop point and the highest point of the silo material pile is controlled to be the minimum, and the height difference between the head and the tail of the conveyor belt is reduced, which can reduce the power output; when feeding materials to the outside through the silo through the reversible conveying device in the reverse direction, the distance between the drop point and the belt receiving hopper is controlled to be the minimum, and the height difference between the head and tail wheels of the reversible conveying device is increased, which can increase the power output, and make full use of the falling speed of the material flow by its own weight to match the conveyor belt speed, thereby reducing power loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a specific embodiment of the present invention;

[0018] Figure 2 A top view of a specific embodiment of the present invention;

[0019] Figure 3 It is a side view of a specific embodiment of the present invention;

[0020] Figure 4 A longitudinal sectional view and a partially enlarged view of a specific embodiment of the present invention;

[0021] Figure 5 It is a three-dimensional diagram of a part of the structure of a specific embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a loading and unloading tower according to a specific embodiment of the present invention;

[0023] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0024] Description of Figure Numbers:

[0025] 1----first lifting mechanism; 11---loading and unloading tower; 11a--tower body; 11b--retaining wall; 110--lifting passage; 111--material passing window; 112--laneway; 12---first lifting guide column; 13---counterweight;

[0026] 2----the second lifting mechanism; 21---the second lifting guide column; 22---counterweight;

[0027] 3----Reversible conveying device; 31---Head roller; 32---Bending point roller; 33---Conveyor belt;

[0028] 4----Upper loading hopper; 41---Feeding port;

[0029] 5---lower discharge hopper; 51---discharge port;

[0030] 6----Opening and closing mechanism; 61---Door leaf; 62---First track; 63---Second track; 64---Drive device; 641--Push-pull column; 65---Pull rod; 66---Drive rod; 661--Through hole; 662--Lateral opening; 67---Positioning guide block; 68---Opening limit block; 69---Closing limit block; 610--Heavy-duty pulley;

[0031] 7----Lifting frame; 71---Guide wheel set;

[0032] 8----Head funnel;

[0033] 9----Branch pipe;

[0034] 10---Stepper drive motor;

[0035] 20---Gear;

[0036] 30---Rack. DETAILED DESCRIPTION

[0037] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0038] The present invention is a silo structure, comprising a first lifting mechanism 1, a second lifting mechanism 2, a reversible conveying device 3, an upper loading hopper 4, a lower unloading hopper 5 and an opening and closing door mechanism 6;

[0039] The first lifting mechanism 1 includes a loading and unloading tower 11 and a first lifting guide column 12; the loading and unloading tower 11 has a vertical lifting passage 110, and the side wall of the lifting passage 110 is provided with a plurality of layers, a plurality of material passing windows 111 on each layer, and a vertically arranged lane 112; the first lifting guide column 12 is arranged in the lifting passage 110;

[0040] The second lifting mechanism 2 includes a second lifting guide column 21;

[0041] The reversible conveying device 3 includes a head roller 31 that is lifted and lowered with the first lifting guide column 12, a bending point roller 32 that is lifted and lowered with the second lifting guide column 21, and a conveyor belt 33 wound around the head roller 31 and the bending point roller 32. The lane 112 allows the conveyor belt 33 to move upward and downward;

[0042] The upper loading hopper 4 and the lower unloading hopper 5 are respectively arranged above and below the head drum 31, and rise and fall synchronously with the head drum 31;

[0043] The opening and closing door mechanism 6 is arranged opposite to the material passing window 111 and is used for movably opening and closing the material passing window 111 .

[0044] refer to Figures 1 to 7 Shown is a specific embodiment of the present invention.

[0045] In this embodiment, the first lifting mechanism 1 and the second lifting mechanism 2 are used to drive the head and the bending point of the reversible conveying device 3 respectively; the reversible conveying device 3 is a reversible belt conveyor.

[0046] The present invention further comprises a lifting frame 7 ; the lifting frame 7 is lifted and lowered in coordination with the first lifting guide column 12 , and the head roller 31 , the upper loading hopper 4 , and the lower unloading hopper 5 are all mounted on the lifting frame 7 .

[0047] In some embodiments of the lifting frame 7, a guide wheel group 71 is provided on the lifting frame 7; the guide wheel group 71 is slidably matched with the first lifting guide column 12, and the lifting frame 7 cooperates with the first lifting guide column 12 through four guide wheel groups 71 to realize the lifting and lowering movement of the reversible conveying device 3 and ensure that the movement process is smooth and not stuck.

[0048] In some embodiments of the lifting frame 7, the present invention further includes a head hopper 8 and a branch material pipe 9; the head hopper 8 is arranged at the end position of the reversible conveying device 3, and its lower end is connected to the branch material pipe 9, and the lower end of the branch material pipe 9 is connected to the upper end of the lower discharge hopper 5. By providing the head hopper 8 and the branch material pipe 9, the material flow during unloading can be guided, and the impact force of the material on the overall structure of the end position of the reversible conveying device 3 when the material falls freely can be reduced, so as to extend the service life of the entire system.

[0049] In some embodiments of the lifting frame 7, a stepping drive motor 10 is provided on the lifting frame 7, a gear 20 is provided on the stepping drive motor 10, and a rack 30 for the gear 20 to cooperate with is provided on the first lifting guide column 12. The stepping drive motor 10 drives the gear 20 to rotate, and the gear 20 is engaged with the rack 30 to drive the lifting frame 7 to move on the first lifting guide column 12, thereby driving the head (i.e., the head roller 31) of the reversible conveying device 3 to rise and fall.

[0050] Correspondingly, the bending point roller 32 may adopt a structure similar to that of the head roller 31 to be lifted and lowered in coordination with the second lifting guide column 21 .

[0051] The loading and unloading tower 11 comprises two tower bodies 11a with semicircular cross-sections, and an arc-shaped retaining wall 11b connected to one end of the two tower bodies 11a. A certain distance is left between the other sides of the two tower bodies 11a to form the above-mentioned lane 112. The above-mentioned material transfer windows 111 are opened on the tower body 11a according to the elevation distance. The number and size of the material transfer windows 111 are designed according to the loading and unloading flow rates. On this basis, multiple pairs of tower bodies 11a can also be set along the direction of the reversible conveying device 3 to improve the unloading capacity.

[0052] The first lifting mechanism 1 and the second lifting mechanism 2 are both equipped with counterweights 13 and 22 of corresponding weights to reduce the power of the driving motor and reduce energy consumption. During installation, the counterweights 13 and 22 can be connected to the head and the bending point of the reversible conveying device 3 through a steel wire rope and a pulley block.

[0053] The upper end of the upper loading hopper 4 is connected to the side wall of the loading and unloading tower 11 , and a plurality of feed ports 41 are provided corresponding to each material transfer window 111 ; meanwhile, the lower end of the lower unloading hopper 5 is connected to the side wall of the loading and unloading tower 11 , and a plurality of discharge ports 51 are provided corresponding to each material transfer window 111 .

[0054] The above-mentioned opening and closing door mechanism 6 includes a door leaf 61, a first track 62, a second track 63 and a driving device 64; the door leaf 61 corresponds to the material transfer window 111 one by one, and the first track 62 and the second track 63 are respectively arranged above and below it, and it is opened and closed under the action of the driving device 64.

[0055] In some embodiments of the door opening and closing mechanism 6, the door leafs 61 on the same horizontal plane are connected in series as a whole by using a plurality of pull rods 65 (in the form of pivoting at the ends to adapt to the shape of the loading and unloading tower 11), and a driving rod 66 is provided at one end close to the first lifting guide column 12, and the end of the driving rod 66 forms a C-shaped through hole 661 with a lateral opening 662; the driving device 64 is an electric push rod installed on the lifting frame 7, and the end of the electric push rod is provided with a push-pull column 641 matching the through hole 661. When the lifting frame 7 is lifted to a certain layer of the material passing window 111, the push-pull column 641 of the electric push rod is embedded in the through hole 661, and the push or pull of the electric push rod can realize the opening and closing of the material passing window 111 on the same layer, and when the lifting frame 7 is lifted, the lateral opening 662 realizes the giving way of the electric push rod to prevent the driving rod 66 from interfering with the lifting and moving of the lifting frame 7.

[0056] In some embodiments of the driving rod 66, the door opening and closing mechanism 6 further comprises a positioning guide block 67 mounted on the loading and unloading tower 11, and the driving rod 66 is movably passed through the positioning guide block 67, thereby achieving positioning and guiding.

[0057] In some embodiments of the driving rod 66, the above-mentioned door opening and closing mechanism 6 also includes a door opening limit block 68 and a door closing limit block 69 arranged on both sides of the positioning guide block 67. Two travel switches are arranged on the positioning guide block 67. By triggering the two travel switches on the positioning guide block 67, in-position signals are respectively given to confirm that the door opening and closing action is accurate and in-position.

[0058] In some embodiments of the door opening and closing mechanism 6, the door opening and closing mechanism 6 further comprises a clamping block disposed in the first track 62 and / or the second track 63, and the clamping block is disposed opposite to the material passing window 111. When the door leaf 61 is closed, the clamping block is pressed against the material passing window 111 after it is in place.

[0059] In some embodiments of the door opening and closing mechanism 6, the width of the material transfer window 111 is smaller than the width of the door leaf 61, and the interval between adjacent material transfer windows 111 is larger than the width of the door leaf 61. When the material transfer windows 111 are opened, the door leaf 61 stays between the material transfer windows 111; when the material transfer windows 111 are closed, the door leaf 61 is directly opposite to the material transfer windows 111.

[0060] In some embodiments of the door opening and closing mechanism 6, the first track 62 is a C-shaped track, and the door opening and closing mechanism 6 also includes a heavy-duty pulley 610 connected to the upper end of the door leaf 61, and the heavy-duty pulley 610 is slidably engaged with the first track 62; the second track 63 is an angle steel track to prevent the door leaf 61 from swinging.

[0061] The present invention utilizes the dead material pile when the materials are piled up to form a natural enclosure structure, and the wall structure of the silo is no longer required.

[0062] The working principle of the present invention is:

[0063] When the reversible conveying device 3 is rotating forward to load materials, the first lifting mechanism 1 and the second lifting mechanism 2 lower the bending point roller 32 and the lifting frame 7 to the lowest point, and first close all the door leaves 61 of the lowest layer through the door opening and closing mechanism 6 on the lifting frame 7. Then it rises to align the lower discharge hopper 5 on the lifting frame 7 with the second layer feeding window 111, and the materials are respectively sent to the lower discharge hopper 5 set on both sides through the head funnel 8 and the branch material pipe 9, and then the materials are sent into the silo through the feeding windows 111 on both sides of the second layer by self-weight through the discharge port 51. As the height of the material in the silo rises and reaches the feeding window 111 of the second layer, the door opening and closing mechanism 6 closes the door leaf 61 of the second layer, and then the first lifting mechanism 1 drives the lifting frame 7 to rise a step height, so that the lower discharge hopper 5 is aligned with the feeding window 111 of the third layer, and the material is continuously discharged. In this way, the head roller 31 of the reversible conveying device 3 and the highest point of the material in the silo are always kept within a height range. When the angle of the conveyor belt 33 between the head roller 31 and the bending point exceeds the maximum allowable inclination, the second lifting mechanism 2 raises the bending point roller 32 to the previous fixed point, and repeats this cycle until the lower discharge hopper 5 reaches the highest level.

[0064] When the reversible conveying device 3 reverses to discharge, the first lifting mechanism 1 and the second lifting mechanism 2 raise the bending point roller 32 and the lifting frame to the highest point, first aligning the upper loading hopper 4 with the door leaf 61 of the next higher layer, and then the door opening and closing mechanism 6 opens all the door leaves 61 on both sides of this layer, and the materials slide into the upper loading hopper 4 from the material passing window 111 of this layer, and then slide onto the conveyor belt 33 of the reversible conveying device 3 after being collected. After the material surface in the silo drops to a certain height, the first lifting mechanism 1 drives the lifting frame 7 to drop a step height, aligning the upper loading hopper 4 with the door leaf 61 of the next layer, and then the door opening and closing mechanism 6 opens all the door leaves 61 on both sides of this layer to unload the silo. This cycle is repeated, and the head roller 31 and the lowest point of the material in the silo are always kept within a height range. When the angle of the conveyor belt 33 between the head roller 31 and the bending point exceeds the maximum allowable inclination angle, the second lifting mechanism 2 lowers the bending point roller 32 to the next fixed point, and the cycle is repeated until the upper loading hopper 4 reaches the bottom layer. The live material pile in the silo is completely removed, and the remaining material that cannot be discharged by gravity is the dead material pile.

[0065] Through the above scheme, the present invention cooperates with the first lifting mechanism 1 and the second lifting mechanism 2 set at the head and the bending point of the reversible conveying device 3 to ensure that the inclination angle of the conveyor belt 33 and the horizontal plane meets the maximum inclination angle requirement for conveying specific materials. When the reversible conveying device 3 is forward-turned to feed the silo, the distance between the drop point and the highest point of the silo material pile is controlled to be the minimum, and the height difference between the head and the tail of the conveyor belt 33 is reduced, which can reduce the power output; when the reversible conveying device 3 is reversed through the silo to feed the outside, the distance between the drop point and the belt receiving hopper is controlled to be the minimum, and the height difference between the head and the tail wheels of the reversible conveying device 3 is increased, which can increase the power output, and make full use of the falling speed of the material flow by its own weight to match the conveyor belt speed, thereby reducing power loss.

[0066] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. Silo structure, characterized by: It includes a first lifting mechanism, a second lifting mechanism, a reversible conveying device, an upper loading hopper, a lower unloading hopper, an opening and closing door mechanism, a lifting frame, a head hopper and a branch material pipe; The first lifting mechanism includes a loading and unloading tower and a first lifting guide column; the loading and unloading tower has a vertical lifting passage, the side wall of the lifting passage is provided with a plurality of layers, a plurality of material transfer windows on each layer, and a vertically arranged lane; the first lifting guide column is arranged in the lifting passage; The second lifting mechanism includes a second lifting guide column; The reversible conveying device comprises a head roller that is lifted and lowered with the first lifting guide column, a bending point roller that is lifted and lowered with the second lifting guide column, and a conveyor belt wound around the head roller and the bending point roller, and the lane gives way to the lifting and lowering movement of the conveyor belt; The lifting frame cooperates with the first lifting guide column in lifting and lowering, and the head roller, upper loading hopper, and lower unloading hopper are all installed on the lifting frame; the upper loading hopper and lower unloading hopper are respectively arranged above and below the head roller, and are lifted and lowered synchronously with the head roller; the upper end of the upper loading hopper is connected to the side wall of the loading and unloading tower, and a plurality of feeding ports are arranged corresponding to each material passing window; the lower end of the lower unloading hopper is connected to the side wall of the loading and unloading tower, and a plurality of discharging ports are arranged corresponding to each material passing window; The door opening and closing mechanism comprises a door leaf corresponding to the material transfer window one by one and used for movably opening and closing the material transfer window; When the reversible conveying device is loading in forward rotation, the first lifting mechanism and the second lifting mechanism lower the bending point roller and the lifting frame to the lowest point, and first close all the door leaves of the lowest layer through the opening and closing door mechanism on the lifting frame; then rise to align the lower discharge hopper on the lifting frame with the feeding window of the second layer, and the material is respectively sent to the lower discharge hopper set on both sides through the head funnel and the branch material pipe, and then the material is sent into the silo through the feeding windows on both sides of the second layer by the dead weight through the discharge port; as the material height in the silo rises and reaches the feeding window of the second layer, the opening and closing door mechanism closes the door leaf of the second layer, and then the first lifting mechanism drives the lifting frame to rise a step height, so that the lower discharge hopper is aligned with the feeding window of the third layer, and continues to discharge; when the conveyor belt angle between the head roller and the bending point exceeds the maximum allowable inclination angle, the second lifting mechanism raises the bending point roller to the previous fixed point, and repeats this cycle until the lower discharge hopper reaches the highest layer; When the reversible conveying device reverses to discharge materials, the first lifting mechanism and the second lifting mechanism raise the bending point roller and the lifting frame to the highest point, first align the upper loading hopper with the door leaf of the next higher layer, and then the door leaves on both sides of this layer are fully opened by the opening and closing door mechanism, and the materials slide into the upper loading hopper from the material passing window of this layer, and then slide into the conveyor belt of the reversible conveying device after being collected; after the material level in the silo drops, the first lifting mechanism drives the lifting frame to drop a step height, align the upper loading hopper with the door leaf of the next layer, and then the door leaves on both sides of this layer are fully opened by the opening and closing door mechanism to unload the silo; when the conveyor belt angle between the head roller and the bending point exceeds the maximum allowable inclination angle, the second lifting mechanism lowers the bending point roller to the next fixed point, and the cycle is repeated until the upper loading hopper reaches the bottom layer; the live material pile in the silo is completely removed, and the remaining material that cannot be discharged by gravity is a dead material pile.

2. The silo structure according to claim 1, characterized in that: The lifting frame is provided with a guide wheel group; the guide wheel group is in sliding cooperation with the first lifting guide column.

3. The silo structure according to claim 1, characterized in that: The head funnel is arranged at the end position of the reversible conveying device, and the lower end of the head funnel is connected to the branch material pipe, and the lower end of the branch material pipe is connected to the upper end of the lower discharge hopper.

4. The silo structure according to claim 1, characterized in that: The lifting frame is provided with a stepping drive motor, the stepping drive motor is provided with a gear, and the first lifting guide column is provided with a rack for matching with the gear.

5. The silo structure according to claim 1, characterized in that: The loading and unloading tower comprises two tower bodies with semicircular cross-sections and an arc-shaped retaining wall connected to the ends of one side of the two tower bodies, and a spacing is left between the other sides of the two tower bodies to form the lane.

6. The silo structure according to claim 1, characterized in that: The first lifting mechanism and the second lifting mechanism are both equipped with counterweights of corresponding weights.

7. The silo structure according to claim 1, characterized in that: The door opening and closing mechanism comprises a first track, a second track and a driving device; the first track and the second track are respectively arranged at the upper and lower parts of the door leaf, and the door leaf is opened and closed under the action of the driving device.

8. The silo structure according to claim 1, characterized in that: The dead material piles when materials are piled up are used to form a natural enclosure structure without setting up a wall structure.

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