A silo and a method of constructing a silo

Abstract

This invention relates to the field of silo construction technology, providing a silo and a silo construction method. The silo includes a silo body and a funnel. A bottom plate is provided at one end of the silo body, and a discharge port is provided on the bottom plate. The funnel includes a large end and a small end, with the large end of the funnel being engaged with the discharge port. At least one vertical joint is provided on the side wall of the funnel, one end of which connects to the large end of the funnel, and the other end of which extends along the axis of the funnel towards the small end. First lifting components are also connected to the side wall of the funnel, with at least two first lifting components distributed along the circumference of the funnel on both sides of the vertical joint. This invention overcomes the technical problem in the prior art where the size of the large end of the funnel is larger than the size of the lower end of the discharge port, requiring the funnel to be lifted or assembled within a limited space above the bottom plate, thus leading to difficulties in funnel installation.

Description

Technical Field

[0001] This invention relates to the field of silo construction technology, and in particular to a silo and a method for constructing a silo. Background Technology

[0002] A silo is a facility used to store bulk materials such as coal, salt, or grain. It generally consists of a cylinder and a funnel located at the bottom of the cylinder. The cylinder has a top plate at the top and a bottom plate at the bottom, with a discharge port on the bottom plate. The funnel has a large end and a small section, with the large end at the top and connecting to the discharge port, and the small end at the bottom, used to unload the material inside the cylinder. Because the funnel needs to withstand the load generated by the material above it, for the stability of the funnel, some silos narrow the lower end of the discharge port (the end away from the top plate) and make the diameter of the large end of the funnel larger than the diameter of the lower end of the discharge port. The large end of the funnel is then secured above the lower end of the discharge port, so that the funnel is stably supported by the side wall of the discharge port to the lower part of the cylinder. Therefore, the installation of this type of funnel requires either hoisting it from top to bottom from above the discharge port, or dividing the funnel into multiple sections and assembling them inside the silo.

[0003] In some existing silos, such as the silo funnel structure disclosed in publication number CN110453954A, an inclined wall is provided at the bottom of the silo. One end of the inclined wall along the radial direction of the silo is connected to the inner wall of the silo, and the other end is connected to the inclined surface of the funnel to unload all the material in the silo as much as possible. However, this inclined wall occupies a considerable portion of the space at the bottom of the silo, which restricts the space for hoisting or assembling the funnel. At the same time, the inclined wall is often made of lightweight materials and lacks a horizontal working surface, so it cannot be used to support the temporary components required for hoisting or assembling the funnel, such as hoisting components or working platforms. This further increases the difficulty of installing the funnel and slows down the construction progress of the entire silo. Therefore, it is necessary to develop a new type of silo structure and a corresponding construction method. Summary of the Invention

[0004] The purpose of this invention is to overcome the technical problem in the prior art that the funnel's large end size is larger than the lower end size of the discharge port, which requires the funnel to be hoisted or assembled in a limited space above the base plate, thus making the funnel installation difficult. This invention provides a silo and a silo construction method.

[0005] In a first aspect, the present invention provides a silo, comprising a silo body and a funnel; a bottom plate is provided at one end of the silo body, and a discharge port is provided on the bottom plate; the funnel comprises a large end and a small end, and the large end of the funnel is engaged with the discharge port.

[0006] The side wall of the funnel is provided with at least one vertical joint, one end of which is connected to the large end of the funnel, and the other end of which extends along the axis of the funnel toward the small end of the funnel.

[0007] The funnel is also connected to a first lifting component, and at least two first lifting components are distributed along the circumference of the funnel on both sides of the vertical joint.

[0008] The silo in this design features a vertical joint on the funnel, with at least one first lifting component on each side of the joint. During funnel installation, cables are connected and tightened between the first lifting components on both sides of the vertical joint to close the large end of the funnel (the funnel side plates on both sides of the vertical joint partially overlap, reducing the diameter of the large end). When the diameter of the large end of the funnel is reduced to less than the diameter of the lower end of the discharge port, the funnel can be directly inserted into the discharge port from bottom to top. Therefore, this design allows for funnel installation and pre-installation preparation (such as moving, assembling, and welding of funnel components) to be carried out directly in a more spacious space below the base plate (outside the silo), unlike existing technologies which require installation and pre-installation preparation to be done in the limited space above the base plate (inside the silo). This significantly reduces the difficulty of funnel installation and improves the efficiency of funnel installation and the overall construction efficiency of the silo.

[0009] Preferably, a pre-embedded steel plate is provided on the side of the discharge port facing the side wall of the funnel, and the large end of the funnel is connected to the pre-embedded steel plate.

[0010] This solution allows operators to easily connect the metal funnel to the concrete base plate by welding or bolting.

[0011] Preferably, it further includes a second lifting component, one end of which is connected to the pre-embedded steel plate, and the other end of which extends radially toward the center of the cylinder.

[0012] This solution involves installing a second lifting component on the pre-embedded steel plate, which allows workers to easily lift objects located below the base plate, thereby accelerating the installation of the funnel and improving the efficiency of pre-installation preparations.

[0013] Preferably, the cylinder is further provided with an inclined wall that surrounds the discharge port. One end of the inclined wall along the radial direction of the cylinder is connected to the inner side wall of the cylinder, and the other end of the inclined wall along the radial direction of the cylinder is connected to the inclined surface of the funnel.

[0014] This solution can guide all the material inside the cylinder into the funnel as much as possible, thereby maximizing the utilization rate of the material inside the cylinder.

[0015] Preferably, the funnel is divided into at least two segments along its axial direction.

[0016] This solution divides the funnel into multiple smaller and lighter segments, which reduces the difficulty of producing, transporting, and hoisting the funnel.

[0017] Preferably, when there are vertical joints on two adjacent segments, the vertical joints on the two adjacent segments are staggered along the circumference of the funnel.

[0018] This solution can prevent the formation of continuous weak surfaces at the vertical joints between two adjacent segments, which could lead to the funnel breaking along the vertical joints during operation.

[0019] Preferably, the side wall of the funnel is also provided with a plug welding hole, which is located near the large end of the funnel.

[0020] This solution allows workers to easily weld the funnel to the side wall of the discharge port using a plug welding method. The plug welding hole can increase the connection area between the side wall of the funnel and the corresponding structure on the discharge port, thereby ensuring a reliable connection between the funnel and the bottom plate.

[0021] Preferably, a third lifting component is also connected to the inner wall of the funnel, and at least two third lifting components are distributed at intervals along the circumference of the funnel.

[0022] This solution allows workers to easily lift the funnel using the third lifting component on the funnel. Furthermore, because the third lifting component is distributed circumferentially around the funnel, this solution provides good stability when lifting the funnel, reducing the risk of the funnel tipping over.

[0023] Preferably, a construction platform is also connected to the inner wall of the funnel.

[0024] This solution allows workers to easily install the funnel and prepare for installation from the inside of the funnel. Furthermore, since the construction platform is located inside the funnel, it will not obstruct the operation of the funnel's large end through the lower end of the discharge port.

[0025] In a second aspect, the present invention provides a method for constructing a silo, applicable to a silo of the present invention, comprising the following steps:

[0026] S1. Construction cylinder and base plate;

[0027] S2. Move the funnel to the bottom plate and connect the cable between the first lifting components on both sides of the vertical joint. Tighten the cable until the diameter of the large end of the funnel is smaller than the diameter of the lower end of the outlet.

[0028] S3. Move the funnel upwards until the large end of the funnel passes the lower end of the discharge port; release the cable until the diameter of the large end of the funnel returns to being larger than the diameter of the lower end of the discharge port.

[0029] S4. Join the vertical seams to connect the funnel to the base plate.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The present invention provides a silo, which, by setting a vertical joint on the funnel and setting at least one first lifting component on each side of the vertical joint, can close the large end of the funnel during installation, thereby enabling the funnel to be inserted into the discharge port from bottom to top, without having to carry out the installation work and pre-installation preparation work in the limited space above the bottom plate as in the prior art. This can greatly reduce the installation difficulty of the funnel and improve the installation efficiency of the funnel and the overall construction efficiency of the silo.

[0032] 2. The construction method of the silo of the present invention adopts the work sequence of first using vertical joints and the first hoisting component to close the large end of the funnel, and then installing the funnel from bottom to top. This can avoid the installation of the funnel and the pre-installation preparation work in the limited space above the bottom plate, which has less construction difficulty and is conducive to improving the installation speed of the funnel and the overall construction efficiency of the silo. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a half-section three-dimensional structure of a silo according to the present invention;

[0034] Figure 2 This is a schematic cross-sectional front view of a silo according to the present invention. Figure 1 ;

[0035] Figure 3 yes Figure 2 A partially enlarged cross-sectional view of the structure at point A in the middle;

[0036] Figure 4 This is a half-sectional three-dimensional structural diagram of the funnel of a silo according to the present invention;

[0037] Figure 5 This is a half-sectional three-dimensional structural diagram of a pre-embedded steel plate for a silo according to the present invention;

[0038] Figure 6 This is a schematic diagram of the connection between the embedded steel plate of the silo and the funnel according to the present invention.

[0039] Figure 7 This is a partial half-section three-dimensional structural diagram of a funnel in a silo according to the present invention. Figure 1 ;

[0040] Figure 8 This is a partial half-section three-dimensional structural diagram of a funnel in a silo according to the present invention. Figure 2 ;

[0041] Figure 9 This is a schematic cross-sectional front view of a silo according to the present invention. Figure 2 ;

[0042] Figure 10This is a schematic diagram of the construction steps of a silo construction method according to the present invention. Figure 1 ;

[0043] Figure 11 This is a schematic diagram of the construction steps of a silo construction method according to the present invention. Figure 2 ;

[0044] Figure 12 This is a schematic diagram of the construction steps of a silo construction method according to the present invention. Figure 3 ;

[0045] Figure 13 This is a schematic diagram of the construction steps of a silo construction method according to the present invention. Figure 4 ;

[0046] Figure 14 This is a front view structural diagram of a silo with a construction platform provided in the hopper of the present invention;

[0047] Figure 15 This is a three-dimensional structural diagram of the third hoisting component of a silo according to the present invention;

[0048] Figure 16 This is a three-dimensional structural schematic diagram of the second hoisting component of a silo according to the present invention;

[0049] icon:

[0050] 1-Cylinder body; 11-Top plate; 12-Bottom plate; 121-Embedded steel plate; 122-Second hoisting component; 13-Sloping wall;

[0051] 2-Function funnel; 20-Segment; 201-Vertical joint; 202-First hoisting component; 203-Third hoisting component; 204-Plug weld hole; 205-Construction platform;

[0052] 3-Sling; 4-Long cable; 5-Winch. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0054] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0055] Furthermore, the use of terms such as "horizontal," "vertical," "suspension," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspension," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0056] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0057] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0058] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0059] Example 1

[0060] like Figures 1 to 16 As shown, a silo includes a cylinder 1 and a funnel 2.

[0061] The specific design of cylinder 1 can refer to existing technologies, such as... Figure 1 and Figure 9 As shown, a top plate 11 is provided at one end of the cylinder 1, and a bottom plate 12 is provided at the other end; a discharge port is provided on the bottom plate 12, and the lower end of the discharge port is narrowed, that is, the diameter of the lower end of the discharge port is smaller than the diameter of the upper end of the discharge port.

[0062] Funnel 2 is made of metal, with one end being the larger end and the other end being the smaller end, for example... Figure 3 As shown, if the diameter of the large end of the funnel 2 is Ds, the diameter of the upper end of the outlet is Dt, and the diameter of the lower end of the outlet is Db, then Dt > Ds > Db, which allows the large end of the funnel 2 to be locked in the outlet, and the inclination angle of the side wall of the funnel 2 relative to the horizontal plane matches the inclination angle of the side wall of the outlet, so that after the large end of the funnel 2 is locked in the outlet, it can be firmly attached to the side wall of the funnel 2.

[0063] The side wall of the funnel 2 is provided with at least one vertical joint 201. One end of the vertical joint 201 is connected to the large end of the funnel 2. The other end of the vertical joint 201 extends towards the small end of the funnel 2 along the axial direction of the funnel 2 (parallel to the height direction of the cylinder 1). It can extend all the way to the small end of the funnel 2 (i.e., the vertical joint 201 is set along the axial direction of the funnel 2 and is relatively long relative to the funnel 2), or it can be interrupted before reaching the small end of the funnel 2 (i.e., the length of the vertical joint 201 along the axial direction of the funnel 2 is less than the total length of the funnel 2). The specific shape of the vertical joint 201 includes, but is not limited to, a straight line, a broken line or an arc, as long as the vertical joint 201 can be used to close the large end of the funnel 2.

[0064] A first lifting component 202 is also connected to the side wall of the funnel 2. At least two first lifting components 202 are distributed along the circumference of the funnel 2 on both sides of the vertical joint 201. The first lifting components 202 are used to connect the cable 4, so that the two ends of the cable 4 are respectively connected to the side walls of the funnel 2 on both sides of the vertical joint 201. This allows the side walls of the funnel 2 on both sides of the vertical joint 201 to move closer or further apart by raising and lowering the cable 4, thereby changing the diameter of the larger end of the funnel 2. The specific structural form of the first lifting component 202 includes, but is not limited to, lifting lugs, lifting rings, lifting pins, or lifting hooks, for example... Figure 15 As shown, perforated ear plates can be directly used as the first hoisting component 202; the cable 4 includes, but is not limited to, steel wire rope or iron chain.

[0065] It should be noted that the vertical joint 201 on the side wall of the funnel 2 must be kept disconnected before the funnel 2 is secured to the discharge port and cannot be spliced ​​together (for example, by welding the steel plates of the funnel 2 on both sides of the vertical joint 201 together or by connecting them with threaded connectors). Otherwise, the vertical joint 201 will lose its ability to close the funnel 2.

[0066] In an optional embodiment, the side of the discharge port facing the side wall of the funnel 2 is also covered with a pre-embedded steel plate 121, and the large end of the funnel 2 is connected to the pre-embedded steel plate 121. The specific connection method includes, but is not limited to, welding connection or threaded connection.

[0067] In the above embodiment, the side of the embedded steel plate 121 facing away from the side wall of the funnel 2 is also provided with an anchor bar. The anchor bar is inserted into the bottom plate 12 to ensure the reliable connection between the embedded steel plate 121 and the bottom plate 12 and to prevent the embedded steel plate 121 from falling off under the action of external force.

[0068] In an optional embodiment, a second lifting component 122 is also included. One end of the second lifting component 122 is connected to the embedded steel plate 121, and the other end of the second lifting component 122 extends radially toward the center of the cylinder 1, allowing workers to easily lower slings 3 from the second lifting component 122 to lift objects. The specific structural form of the second lifting component 122 includes, but is not limited to, lifting lugs, lifting rings, lifting pins, or lifting hooks.

[0069] In an optional embodiment, when the embedded steel plate 121 has sufficient surface area to weld the second lifting component 122, the second lifting component 122 can directly adopt a perforated lug plate. However, the difference between the second lifting component 122 and the first lifting component 202 is that the second lifting component 122 needs to extend towards the center of the cylinder 1 to facilitate the hanging of the sling 3 below the bottom plate 12.

[0070] In optional implementations, such as Figure 16 The second lifting component 122 shown includes a T-shaped steel plate arranged radially along the cylinder 1 and a horizontal steel plate connected to the bottom surface of the T-shaped steel plate. The bottom surface of the horizontal steel plate has three legs for connecting with the embedded steel plate 121. Stiffening ribs are also provided between the side of the T-shaped steel plate and the upper surface of the horizontal steel plate to increase the rigidity of the second lifting component 122. This second lifting component 122 has a small connection area with the embedded steel plate 121, making it suitable for situations where the available surface area of ​​the embedded steel plate 121 is small.

[0071] In the above embodiment, at least two second lifting components 122 are distributed circumferentially at intervals along the discharge port.

[0072] In the above embodiment, the side wall of the funnel 2 is also provided with a vertical through groove. One end of the vertical through groove is connected to the large end of the funnel 2, and the other end extends along the axis of the funnel 2 toward the small end of the funnel 2. The number, size and position of the vertical through groove are matched with the corresponding parameters of the second lifting component 122. When the funnel 2 moves upward, the second lifting component 122 can be inserted into the vertical through groove, thereby avoiding interference between the second lifting component 122 and the funnel 2, and also providing a certain limiting effect on the funnel 2.

[0073] In an optional embodiment, an inclined wall 13 is also provided inside the cylinder 1. The inclined wall 13 is arranged around the discharge port. One end of the inclined wall 13 along the radial direction of the cylinder 1 is connected to the inner side wall of the cylinder 1, and the other end of the inclined wall 13 along the radial direction of the cylinder 1 is connected to the inclined surface of the funnel 2.

[0074] In an optional embodiment, the funnel 2 is divided into at least two segments 20 along its axial direction, and adjacent segments 20 are welded together or connected by threaded connectors. For example Figure 4 As shown, the funnel 2 is divided into four segments 20 along its axial direction. The two segments 20 near the large end are provided with vertical joints 201, while the two segments 20 near the small end do not need to be provided with vertical joints 201. The specific dimensions of the segments 20 are determined according to the actual transportation and lifting capacity.

[0075] In an optional embodiment, when there are vertical joints 201 on two adjacent segments 20, the vertical joints 201 on the two adjacent segments 20 are staggered in position along the circumference of the funnel 2.

[0076] It is important to note that, in order to ensure the continuity of the vertical joints 201 between adjacent segments 20 after they are connected, the joints of segments 20 between adjacent vertical joints 201 are not spliced. This is to avoid discontinuity in the vertical joints 201, which could lead to difficulties in closing the funnel 2. For example... Figure 7 As shown in the figure, G1 and G2 represent the vertical joints 201 on the two segments 20, while G3 represents the part of the horizontal joint between the two segments 20 located between the two vertical joints 201. Before the funnel 2 is clamped at the discharge port, not only the vertical joints 201G1 and 201G2 need to be kept open, but the horizontal joint G3 also needs to be kept open.

[0077] In an optional embodiment, the side wall of the funnel 2 is further provided with a plug welding hole 204, which is located near the large end of the funnel 2. For example... Figure 3 As shown, the plug welding holes 204 can be arranged in at least two rows along the axial direction of the funnel 2 to further increase the welding area between the side wall of the funnel 2 and the embedded steel plate 121.

[0078] In an optional embodiment, a third lifting component 203 is also connected to the inner wall of the funnel 2, and at least two third lifting components 203 are distributed circumferentially around the funnel 2. The third lifting component 203 is used to connect the cable 4 to facilitate the lifting of the funnel 2. Its specific structural form is the same as that of the first lifting component 202, including but not limited to lifting lugs, lifting rings, lifting pins or hooks. The difference is that the first lifting component 202 is used to connect the cable 4 horizontally (perpendicular to the axis of the funnel 2), and the second lifting component 122 is used to connect the sling 3 vertically (parallel to the axis of the funnel 2). Therefore, the installation directions of the first lifting component 202 and the second lifting component 122 will be different. The specific difference in installation angle depends on the actual lifting situation and the setting of the vertical joint 201.

[0079] In an optional embodiment, a construction platform 205 is also connected to the inner wall of the funnel 2. For example... Figure 14 As shown, a stepped construction platform 205 can be built on the inner wall of the funnel 2 using round steel to facilitate workers to assemble, weld and close the funnel 2 on the inner wall of the funnel 2.

[0080] In an optional embodiment, a winch 5 is also provided on the top plate 11 of the cylinder 1. The hoisting cable 3 of the winch 5 is lowered from the hole in the center of the top plate 11 to the bottom plate 12 to assist in lifting or pulling the funnel 2 component. Several pulley assemblies can be arranged at intervals along the length of the hoisting cable 3 to change the path of the hoisting cable 3 to adapt to different installation spaces or pulling requirements.

[0081] In an optional embodiment, a hanging strap is also included, with one end connected to the top plate 11 and the other end lowered to the height of the discharge port of the bottom plate 12, serving as a safety belt attachment point for personnel when hoisting the funnel 2.

[0082] Example 2

[0083] like Figures 10 to 13 As shown, a construction method for a silo, applied to a silo in Example 1, includes the following steps:

[0084] S1, Construction of the cylinder 1 and the top plate 11, bottom plate 12 and discharge port on the bottom plate 12 inside the cylinder 1. If the silo also includes a pre-embedded steel plate 121 and an inclined wall 13, the pre-embedded steel plate 121 and the inclined wall 13 are also constructed together in this step.

[0085] S2, such as Figure 10 As shown, the funnel 2 is moved below the base plate 12, and preparatory work for the installation of the funnel 2 is carried out below the base plate 12, such as assembling and welding the segment 20 and other auxiliary components, and then proceeding as follows. Figure 7 and Figure 8As shown, a cable 4 is connected and tightened between the first hoisting components 202 on both sides of the vertical joint 201 until the diameter of the large end of the funnel 2 is smaller than the diameter of the lower end of the discharge port.

[0086] In the above embodiments, a winch 5 can be used to pull the components of the funnel 2 from outside the cylinder 1 to below the bottom plate 12.

[0087] In the above embodiments, the cable 4 can be an electric hoist or a manual hoist.

[0088] In the above embodiments, when performing preparatory work before installing the funnel 2, such as welding the funnel 2 components, it can be done as follows: Figure 10 As shown, slings 3 are connected and tightened between the third lifting component 203 of the funnel 2 and the second lifting component 122 on the embedded steel plate 121 to prevent the funnel 2 from overturning unexpectedly.

[0089] In the above embodiment, before carrying out the preparatory work for the installation of funnel 2, a temporary construction platform 205 is set on the inner side wall of funnel 2.

[0090] S3, such as Figure 11 As shown, move the funnel 2 upwards until the large end of the funnel 2 passes the lower end of the discharge port and reaches the specified elevation; release the cable 4 until the diameter of the large end of the funnel 2 returns to being larger than the diameter of the lower end of the discharge port.

[0091] In the above embodiments, the specific ways of moving the funnel 2 include, but are not limited to, setting a lifting mechanism at the bottom of the funnel 2, or lifting the funnel 2 from above, for example, connecting an electric hoist between the third lifting component 203 of the funnel 2 and the second lifting component 122 on the embedded steel plate 121, and moving the funnel 2 toward the embedded steel plate 121 by tightening the electric hoist.

[0092] In the above embodiments, before moving the funnel 2 upward, the funnel 2 can be lifted to the bottom of the funnel 2 off the ground, and then kept still for a specified time. After confirming that the force state of the funnel 2 and the electric hoist is stable, the funnel 2 can be further raised to the specified elevation to prevent the large end of the funnel 2 from suddenly reopening due to changes in external load, which could lead to a production safety accident.

[0093] In the above embodiments, if a hand-operated hoist is used to release the cable 4, the worker's safety belt can be hung on a pre-set strap, and then the worker can operate the hand-operated hoist to prevent the funnel 2 from accidentally falling and causing the worker to fall with it.

[0094] S4, such as Figure 13As shown, the vertical joint 201 is assembled, for example, by welding the funnel 2 steel plates on both sides of the vertical joint 201 together; the funnel 2 is connected to the base plate 12, for example, by welding the funnel 2 steel plate to the embedded steel plate 121 through the plug weld hole 204.

[0095] In an optional embodiment, when the funnel 2 comprises at least two segments 20, only the segment 20 near the larger end requires the installation of cable 4 to increase or decrease the diameter of the funnel 2, while the segment 20 near the smaller end and not directly connected to the embedded steel plate 121 does not require cable 4. When hoisting the segments 20, each segment 20 can be hoisted into place separately and then connected, or two or more segments 20 can be connected together below the base plate 12 and then hoisted into place as a whole. The number of segments 20 hoisted each time depends on the actual hoisting capacity, for example, in... Figures 10 to 13 In the steps shown, two segments of segment 20 are hoisted each time.

[0096] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A silo, comprising a silo body (1) and a funnel (2); a bottom plate (12) is provided at one end of the silo body (1), and a discharge port is provided on the bottom plate (12); the funnel (2) comprises a large end and a small end, the large end of the funnel (2) being engaged with the discharge port, characterized in that: The side wall of the funnel (2) is provided with at least one vertical joint (201), one end of the vertical joint (201) is connected to the large end of the funnel (2), and the other end of the vertical joint (201) extends towards the small end of the funnel (2) along the axial direction of the funnel (2). The funnel (2) is also connected to a first hoisting component (202), and at least two first hoisting components (202) are distributed on both sides of the vertical joint (201) along the circumference of the funnel (2); A pre-embedded steel plate (121) is also provided on the side of the discharge port facing the side wall of the funnel (2), and the large end of the funnel (2) is connected to the pre-embedded steel plate (121). It also includes a second lifting component (122), one end of which is connected to the pre-embedded steel plate (121), and the other end of which extends radially toward the center of the cylinder (1). The inner wall of the funnel (2) is also connected to a third lifting component (203), and at least two of the third lifting components (203) are distributed at intervals along the circumference of the funnel (2).

2. A silo according to claim 1, characterized in that, The cylinder (1) is also provided with an inclined wall (13), which surrounds the discharge port. One end of the inclined wall (13) along the radial direction of the cylinder (1) is connected to the inner side wall of the cylinder (1), and the other end of the inclined wall (13) along the radial direction of the cylinder (1) is connected to the inclined surface of the funnel (2).

3. A silo according to claim 1, characterized in that, The funnel (2) is divided into at least two segments (20) along its axial direction.

4. A silo according to claim 3, characterized in that, When there are vertical joints (201) on two adjacent segments (20), the vertical joints (201) on the two adjacent segments (20) are staggered in position along the circumference of the funnel (2).

5. A silo according to claim 1, characterized in that, The side wall of the funnel (2) is also provided with a plug welding hole (204), which is located near the large end of the funnel (2).

6. A silo according to claim 1, characterized in that, A construction platform (205) is also connected to the inner wall of the funnel (2).

7. A method for constructing a silo, characterized in that, The application of a silo according to any one of claims 1 to 6 includes the following steps: S1, Construction cylinder (1) and bottom plate (12); S2. Move the funnel (2) to the bottom plate (12), connect the cable (4) between the first hoisting components (202) on both sides of the vertical joint (201), and tighten the cable (4) until the diameter of the large end of the funnel (2) is smaller than the diameter of the lower end of the outlet. S3. Move the funnel (2) upward until the large end of the funnel (2) passes the lower end of the discharge port; release the cable (4) until the diameter of the large end of the funnel (2) returns to a value greater than the diameter of the lower end of the discharge port; S4. Join the vertical joint (201) to connect the funnel (2) to the base plate (12).

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