A split-type vibration-assisted gravity mixing silo

Abstract

This invention relates to the field of blending silo technology, and more particularly to a split-type shaking-assisted gravity blending silo, comprising: a silo body, a blending chamber, blending pipes, and a shaking-assisted flow assembly. The silo body includes a silo and a conical silo disposed below the silo. A first connecting flange and a second connecting flange are provided at the connection between the silo and the conical silo. The blending chamber is disposed at the bottom of the conical silo and communicates with it. Multiple blending pipes are arranged circumferentially inside the silo and pass through the conical silo to communicate with the blending chamber. The shaking-assisted flow assembly is disposed between the first connecting flange and the second connecting flange and is used to drive the conical silo and the blending chamber to perform small-amplitude shaking. By using the shaking-assisted flow assembly to achieve synchronous shaking of the blending pipes and the blending chamber connected to the conical silo, the flow rate stability of the material entering the blending chamber from the conical silo and the blending pipes is effectively ensured, ensuring that the material flow pattern is mass flow, avoiding bridging and stratification, thereby improving the uniformity of material mixing and ensuring product quality.

Description

Technical Field

[0001] This invention relates to the field of blending silo technology, and in particular to a split-type shaking-assisted gravity blending silo. Background Technology

[0002] In the industrial field, batch mixing is required to ensure relatively stable material quality. Gravity mixing silos rely on the gravity of the material particles within the silo to flow. Materials of different heights are fed into the mixing chamber below through feed holes of different heights on the mixing pipe. Different batches of materials are mixed and discharged simultaneously, ultimately obtaining a uniformly mixed material. The entire mixing process consumes almost no energy, and the material moves at a low speed in the silo, generating almost no static electricity or dust, resulting in minimal material wear.

[0003] Existing gravity-type mixing silos typically have a vibrator at the top that provides up-and-down vibration power to the mixing pipe. This vibration loosens the material within the silo, allowing it to quickly enter the mixing pipe through the feed inlet. However, due to differences in material properties and volume, stratification and bridging may occur as the material enters the silo. Furthermore, the top-mounted vibration aid has a vibration attenuation rate issue, leading to slow flow zones and dead zones during material discharge. This results in uneven mixing and severely impacts product quality.

[0004] In view of the above problems, the inventor, based on years of practical experience and professional knowledge in engineering applications of such products, actively researched and innovated to create a split-type shaking-assisted gravity mixing silo, making it more practical. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a split-type shaking-assisted gravity mixing silo, which effectively solves the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a split-type shaking-assisted gravity mixing silo, comprising:

[0007] The silo body includes a silo and a conical silo disposed below the silo. A first connecting flange and a second connecting flange are provided at the connection between the silo and the conical silo. A connecting shaft section extends from the wall of the silo toward the conical silo. The connecting shaft section protrudes from the first connecting flange and is embedded in the conical silo.

[0008] A mixing chamber is located at the bottom of the conical chamber and is connected to the conical chamber;

[0009] Multiple mixing pipes are arranged circumferentially inside the silo, and several feed holes are provided along the axial direction of the mixing pipes. The multiple mixing pipes pass through the conical silo and are connected to the mixing chamber.

[0010] A vibration-assisted flow assembly is disposed between the first connecting flange and the second connecting flange, and is used to drive the cone chamber and the mixing chamber to vibrate slightly.

[0011] Furthermore, the connecting shaft segment gradually tapers inward along the axis in a direction away from the first connecting flange, so as to form a guide surface at the end position of the connecting shaft segment that fits against the inner wall of the cone chamber;

[0012] A stepped annular sealing groove extends above the conical chamber, and a sealing ring is provided inside the annular sealing groove.

[0013] Furthermore, a support assembly is provided at one end of the mixing pipe that extends into the silo, and the support assembly is disposed on the top wall of the silo;

[0014] The support assembly includes two guide brackets symmetrically arranged along the axis at the end of the mixing pipe, and the tops of the two guide brackets are respectively hinged to the top wall of the silo.

[0015] An arc-shaped plate is provided at one end of the guide bracket away from the hinge point, and a tension spring is connected at the middle position of the two guide brackets so that an annular groove for accommodating the mixing tube is formed between the two arc-shaped plates.

[0016] Furthermore, two support wheels are provided on the inner sides of both arc-shaped plates, and the support wheels are horizontally arranged, with the support wheels abutting against the outer cylindrical surface of the mixing tube in the circumferential direction.

[0017] Furthermore, the silo is provided with a first fixed bracket and a second fixed bracket, the first fixed bracket being located at the top of the silo and the second fixed bracket being located at the middle of the silo.

[0018] Furthermore, a plate-shaped support is provided at the middle position along the axial direction of the plurality of mixing tubes.

[0019] Furthermore, the vibration-assisted flow assembly includes at least three drive components and at least three damping components;

[0020] The three drive components and the three damping components are evenly spaced along the circumferential direction.

[0021] Furthermore, the drive assembly includes a servo hydraulic cylinder and a connecting seat;

[0022] The servo hydraulic cylinder is fixed to the first connecting flange, and the connecting seat is fixed to the second connecting flange;

[0023] The drive rod of the servo hydraulic cylinder is hinged to the connecting seat through the disc surface of the first connecting flange.

[0024] Furthermore, the damping assembly includes connecting bolts and damping springs;

[0025] The connecting bolt passes through the first connecting flange and the second connecting flange and is fixed by a nut. The shock-absorbing spring is sleeved on the shaft segment where the connecting bolt is located between the first connecting flange and the second connecting flange.

[0026] Furthermore, an outer sleeve is fitted over the outside of the support assembly, and the top of the outer sleeve is fixed to the top wall of the silo.

[0027] Shock-absorbing pads are provided on the opposing surfaces of the two guide supports, and the shock-absorbing pads abut against the inner wall of the outer sleeve.

[0028] The beneficial effects of this invention are as follows: By using a separate design of silo and conical silo, and placing the shaking flow aid component between the connecting flanges of the silo and conical silo, the conical silo is made to shake up and down relative to the silo, ensuring that the material flow pattern is a mass flow, avoiding bridging and stratification phenomena in the silo. Furthermore, the shaking flow aid component enables the mixing pipe and mixing chamber connected to the conical silo to shake synchronously, effectively ensuring the stability of the flow rate of material entering the mixing chamber from the conical silo and mixing pipe, thereby improving the uniformity of material mixing and ensuring product quality. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the split-type shaking-assisted gravity mixing silo in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the silo structure in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of the cone chamber, mixing chamber, and mixing pipe in an embodiment of the present invention;

[0033] Figure 4 for Figure 1AA section view;

[0034] Figure 5 This is a schematic diagram of the structure of the shaking flow aid component in an embodiment of the present invention;

[0035] Figure 6 for Figure 1 BB section view;

[0036] Figure 7 for Figure 1 A magnified view of a portion at point C;

[0037] Figure 8 This is a top view of the support component in an embodiment of the present invention;

[0038] Figure 9 This is an isometric view of the support component in an embodiment of the present invention.

[0039] Reference numerals: 10, silo; 11, first connecting flange; 12, connecting shaft section; 13, first fixed bracket; 14, second fixed bracket; 20, conical silo; 21, second connecting flange; 30, mixing chamber; 40, mixing pipe; 50, vibration-assisted flow assembly; 51, drive assembly; 511, servo hydraulic cylinder; 512, connecting seat; 52, shock absorption assembly; 521, connecting bolt; 522, shock absorption spring; 60, support assembly; 61, guide bracket; 611, arc plate; 612, support wheel; 62, tension spring; 70, plate-shaped support; 80, outer sleeve. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] like Figures 1 to 9 The split-type shaking-assisted gravity mixing silo shown includes: a silo body, a mixing chamber 30, a mixing pipe 40, and a shaking-assisted flow assembly 50. The silo body includes a silo 10 and a conical silo 20 disposed below the silo 10. A first connecting flange 11 and a second connecting flange 21 are provided at the connection between the silo 10 and the conical silo 20. A connecting shaft section 12 extends from the wall of the silo 10 toward the conical silo 20. The connecting shaft section 12 protrudes from the first connecting flange 11 and is embedded in the conical silo 20. The mixing chamber 30 is disposed at the bottom of the conical silo 20 and is connected to the conical silo 20. Multiple mixing pipes 40 are arranged circumferentially inside the silo 10, and multiple mixing pipes 40 are provided with several feed holes along the axial direction. Multiple mixing pipes 40 pass through the conical silo 20 and are connected to the mixing chamber 30. The shaking-assisted flow assembly 50 is disposed between the first connecting flange 11 and the second connecting flange 21 and is used to drive the conical silo 20 and the mixing chamber 30 to perform small-amplitude shaking.

[0044] The process of this invention involves material entering from the silo inlet at the top of the silo 10. Part of the material enters the mixing pipe 40 through the feed hole, while the other part directly enters the conical silo 20. A vibrating flow aid component 50 causes the conical silo 20 and the mixing chamber 30 to vibrate slightly, allowing the material in the mixing pipe 40 and the conical silo 20 to converge into the mixing chamber 30, thus achieving the mixing effect. This invention utilizes a separate design for the silo 10 and the conical silo 20, and places the vibrating flow aid component 50 between the connecting flanges of the silo 10 and the conical silo 20. This causes the conical silo 20 to vibrate up and down relative to the silo 10, ensuring a mass flow pattern for the material and preventing bridging and stratification in the silo. Furthermore, the vibrating flow aid component 50 synchronizes the vibration of the mixing pipe 40 and the mixing chamber 30 connected to the conical silo 20, effectively ensuring the stability of the flow rate of the material entering the mixing chamber 30 from the conical silo 20 and the mixing pipe 40, thereby improving the uniformity of material mixing and ensuring product quality.

[0045] In this invention, the silo 10 is fixedly installed, while the conical silo 20 is connected via a connecting shaft section 12 protruding from the first connecting flange 11. The conical silo 20 is vibrated by a shaking flow aid component 50 to achieve uniform material mixing. However, the conical silo 20 is prone to displacement and tilting during vibration, severely affecting the stability of the connection between the silo 10 and the conical silo 20. Therefore, the connecting shaft section 12 gradually contracts inward along its axis away from the first connecting flange 11, forming a guide surface at the end of the connecting shaft section 12 that fits against the inner wall of the conical silo 20. This guide surface ensures that the conical silo 20 maintains coaxiality with the silo 10 during up-and-down vibration. A stepped annular sealing groove extends above the conical silo 20, containing a sealing ring. The design of the guide surface and the stepped annular sealing groove ensures the sealing performance at the silo connection, preventing material leakage or external impurities from entering the silo, effectively solving the sealing problem of split silos.

[0046] In this invention, the mixing pipe 40 forms an integral structure with the conical silo 20 and the mixing chamber 30. When the conical silo 20 vibrates, the pipe 40 vibrates synchronously. To prevent the mixing pipe 40 from tilting during vibration within the silo 10 and affecting the uniformity of feeding, a support assembly 60 is provided at the end of the mixing pipe 40 that extends into the silo 10. The support assembly 60 is located on the top wall of the silo 10. The support assembly 60 includes two guide brackets 61 symmetrically arranged along the axis at the end of the mixing pipe 40, and the tops of the two guide brackets 61 are respectively hinged to the top wall of the silo 10. An arc-shaped plate 611 is provided at the end of the guide bracket 61 away from the hinge point, and a tension spring 62 is connected at the middle position of the two guide brackets 61 to form an annular groove between the two arc-shaped plates 611 for accommodating the mixing pipe 40. The two ends of the tension spring 62 are hinged to the two guide brackets 61, and the tension spring 62 causes the two guide brackets 61 to contract inward, thereby better fixing the mixing pipe 40.

[0047] As a preferred embodiment, two support wheels 612 are provided on the inner sides of both arc-shaped plates 611, and the support wheels 612 are horizontally arranged, abutting against the outer cylindrical surface of the mixing tube 40 in the circumferential direction. When the mixing tube 40 moves synchronously in the vertical direction with the conical chamber 20, the four support wheels 612 provide support for the mixing tube 40 while also preventing the mixing tube 40 from tilting when it shakes up and down, effectively ensuring the uniformity of feeding into the mixing tube 40.

[0048] like Figure 2 As shown, in this invention, the silo 10 is provided with a first fixed support 13 and a second fixed support 14. The first fixed support 13 is located at the top of the silo 10, and the second fixed support 14 is located at the middle of the silo 10.

[0049] Specifically, the first fixed bracket 13 and the second fixed bracket 14 are octagonal. The upper silo 10 is fixed to the square bracket by the two octagonal fixed brackets. There are two corresponding holes on the four sides of the square bracket that correspond to the holes on the octagonal fixed bracket, which ensures the reliability and stability of the positioning of the silo 10.

[0050] In a preferred embodiment of the present invention, a plate-shaped support 70 is provided at the middle position of a plurality of mixing tubes 40 along the axial direction. The support is designed in a plate shape, which can provide a better fixing effect and can minimize the impact of friction between the support and the material on the life of the support.

[0051] In a preferred embodiment of the present invention, the shaking and flow-assisting component 50 includes at least three driving components 51 and at least three damping components 52; the three driving components 51 and the three damping components 52 are evenly distributed and spaced apart along the circumferential direction to ensure uniform force distribution.

[0052] Based on the above embodiments, the drive assembly 51 includes a servo hydraulic cylinder 511 and a connecting seat 512; the servo hydraulic cylinder 511 is fixed on the first connecting flange 11, and the connecting seat 512 is fixed on the second connecting flange 21; the drive rod of the servo hydraulic cylinder 511 passes through the disc surface of the first connecting flange 11 and is hinged to the connecting seat 512.

[0053] Specifically, the servo hydraulic cylinder 511 provides power for the shaking of the hopper, so that the cone hopper 20, the mixing pipe 40 and the mixing chamber 30 as a whole make small-amplitude shaking, which can effectively change the material flow pattern to mass flow. The servo hydraulic cylinder 511 is used as the driving body mainly because it is a high-performance hydraulic transmission device with a series of advantages such as high precision, high rigidity, high efficiency and energy saving and safety. It can greatly reduce the tilting problem that may occur in the lower part of the hopper during the shaking process, and can avoid structural damage caused by the tilting of the lower part of the hopper, thus extending the service life of the device.

[0054] As a preferred embodiment of the above, the shock-absorbing assembly 52 includes a connecting bolt 521 and a shock-absorbing spring 522; the connecting bolt 521 passes through the first connecting flange 11 and the second connecting flange 21 and is fixed by a nut, and the shock-absorbing spring 522 is sleeved on the shaft section of the connecting bolt 521 located between the first connecting flange 11 and the second connecting flange 21, which can reduce the impact of the cone silo 20 shaking on the upper part of the silo 10, thereby ensuring the safety and reliability of the silo body fixation.

[0055] Since the feed inlet of the silo 10 is located at the top center, in order to prevent the material from affecting the support assembly 60 during the feeding process, an outer sleeve 80 is fitted on the outside of the support assembly 60, and the top of the outer sleeve 80 is fixed to the top wall of the silo 10; and shock-absorbing pads are set on the opposing surfaces of the two guide supports 61, which abut against the inner wall of the outer sleeve 80. The outer sleeve 80 cooperates with the rubber shock-absorbing pads on the back of the guide supports 61 to limit the outward movement angle of the guide supports 61, and the outer sleeve 80 can prevent the material from causing the tension spring 62 and the rotation mechanism of the guide supports 61 to fail, which can extend the service life of the support assembly 60 to a certain extent.

[0056] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A split-type vibrating gravity mixing silo, characterized in that, include: The silo body includes a silo and a conical silo disposed below the silo. A first connecting flange and a second connecting flange are provided at the connection between the silo and the conical silo. A connecting shaft section extends from the wall of the silo toward the conical silo. The connecting shaft section protrudes from the first connecting flange and is embedded in the conical silo. A mixing chamber is located at the bottom of the conical chamber and is connected to the conical chamber; Multiple mixing pipes are arranged circumferentially inside the silo, and several feed holes are provided along the axial direction of the mixing pipes. The multiple mixing pipes pass through the conical silo and are connected to the mixing chamber. A vibration-assisted flow assembly is disposed between the first connecting flange and the second connecting flange. The vibration-assisted flow assembly includes at least three driving components and at least three damping components. The three driving components and the three damping components are evenly distributed and spaced apart along the circumferential direction to drive the cone and the mixing chamber to vibrate slightly. A support assembly is provided at one end of the mixing pipe that extends into the silo, and the support assembly is disposed on the top wall of the silo; The support assembly includes two guide brackets symmetrically arranged along the axis at the end of the mixing pipe, and the tops of the two guide brackets are respectively hinged to the top wall of the silo. An arc-shaped plate is provided at one end of the guide bracket away from the hinge point, and a tension spring is connected in the middle of the two guide brackets so that an annular groove for accommodating the mixing tube is formed between the two arc-shaped plates. Two support wheels are provided on the inner sides of the two arc-shaped plates, and the support wheels are horizontally arranged, with the support wheels abutting against the outer cylindrical surface of the mixing tube in the circumferential direction.

2. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, The connecting shaft segment gradually tapers inward along the axis toward the direction away from the first connecting flange, so as to form a guide surface at the end position of the connecting shaft segment that fits against the inner wall of the cone chamber. A stepped annular sealing groove extends above the conical chamber, and a sealing ring is provided inside the annular sealing groove.

3. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, The silo is provided with a first fixed support and a second fixed support. The first fixed support is located at the top of the silo, and the second fixed support is located at the middle of the silo.

4. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, The multiple mixing tubes are provided with plate-shaped support members at the middle position along the axial direction.

5. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, The drive assembly includes a servo hydraulic cylinder and a connecting base; The servo hydraulic cylinder is fixed to the first connecting flange, and the connecting seat is fixed to the second connecting flange; The drive rod of the servo hydraulic cylinder is hinged to the connecting seat through the disc surface of the first connecting flange.

6. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, The damping assembly includes connecting bolts and damping springs; The connecting bolt passes through the first connecting flange and the second connecting flange and is fixed by a nut. The shock-absorbing spring is sleeved on the shaft segment where the connecting bolt is located between the first connecting flange and the second connecting flange.

7. The split-type vibrating gravity mixing silo according to claim 1, characterized in that, An outer sleeve is fitted over the outside of the support assembly, and the top of the outer sleeve is fixed to the top wall of the silo. Shock-absorbing pads are provided on the opposing surfaces of the two guide supports, and the shock-absorbing pads abut against the inner wall of the outer sleeve.

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