A double-screw arch breaking device for a material bin

Abstract

The utility model discloses a material bin double helix arch breaking device of material processing technical field, including the bin main part, be equipped with the feed port and the discharge gate on the bin main part, be equipped with the rotating equipment on the bin main part, the output of rotating equipment is equipped with the lifting vibration connecting piece, the lifting vibration connecting piece extends to the bin main part in and is connected with the axle body, the axle body outside is provided with two groups of helical blades with annular array. The utility model is provided with rotating equipment, lifting vibration connecting piece, axle body and helical blade on the bin main part, drives the axle body and helical blade sustained rotation through rotating equipment drive lifting vibration connecting piece, produces axial delivery and radial shearing force to the material in the bin main part, effectively breaks the arching phenomenon that material produces, lifting vibration connecting piece makes the axle body in the rotating process can produce periodic axial vibration and up and down displacement, further loosens the material of adhesion and jam, has strengthened the ability of bin arch breaking and preventing blockage.

Description

Technical Field

[0001] This utility model relates to the field of silo arch breaking, specifically to a double-helix arch breaking device for material silos. Background Technology

[0002] As a transit and storage structure in the material production process, the silo plays a crucial role. Currently, most material silos have a constricted lower section with a discharge port on the narrowed bottom, providing a funnel-like gathering effect for the material. The material is discharged from the discharge port under its own gravity. While this type of silo can gather material, the discharge port size is much smaller than the upper part of the silo, causing the material to be squeezed and compacted when flowing to the constricted section. This leads to a sharp increase in internal frictional resistance and deterioration of flowability, often resulting in arching within the silo. This arching phenomenon is particularly prominent when handling easily adsorbed or intertwined powders or granular materials (such as yeast powder), not only causing discharge interruptions but also disrupting the stability of downstream processes and overall production efficiency. Therefore, we propose a double-helix arch-breaking device for material silos. Utility Model Content

[0003] The purpose of this utility model is to provide a double-helix arch-breaking device for material silos, which solves the technical problem that existing material silos, due to the fact that the outlet size is much smaller than the upper part of the silo, cause the material to be squeezed and compacted when it flows to the contraction section, resulting in a sharp increase in internal frictional resistance and deterioration of fluidity, often causing arching in the silo. This not only causes material discharge interruption, but also damages the stability of downstream processes and overall production efficiency.

[0004] This utility model achieves the above objectives through the following technical solutions: A material silo double-helix arch-breaking device includes a silo body, an inlet and an outlet on the silo body, a rotating device on the silo body, a lifting and vibration connector at the output end of the rotating device, the lifting and vibration connector extending into the silo body and connected to a shaft, and two sets of spiral blades arranged in a ring array on the outer side of the shaft. The lifting vibration connector includes an elastic connecting rod connected to the output end of the rotating equipment and the shaft. The outer wall of the shaft is provided with a contact rod. A fixed plate is movably sleeved on the outer side of the elastic connecting rod. The fixed plate is connected to the inner wall of the hopper body. A number of arc-shaped protrusions are provided on one side of the fixed plate to drive the contact rod to drive the shaft downward.

[0005] A further improvement is that the inner side of the spiral blade is provided with several sets of support rods, one end of which is fixedly connected to the shaft, and the other end is detachably connected to the spiral blade through a fastener.

[0006] A further improvement is that the diameter of the spiral blade gradually decreases from top to bottom.

[0007] A further improvement is that the arc-shaped protrusions are provided in two sets, and the two sets of arc-shaped protrusions are symmetrically arranged at the bottom of the fixed plate. The contact rod is L-shaped, and the contact rods are provided in two sets and symmetrically arranged on the outer wall of the shaft. The contact rods and the arc-shaped protrusions correspond one-to-one.

[0008] A further improvement is that the hopper body includes an upper shell that is hollow at both the top and bottom, a lower shell that is detachably connected to the bottom of the upper shell, and a cover that is detachably connected to the top of the upper shell and is used to close the top of the upper shell. The rotating device and the feed inlet are both located on the cover, and the discharge outlet is located at the bottom of the lower shell.

[0009] A further improvement is that the fastener includes a fixing bolt.

[0010] The beneficial effects of this utility model are as follows: This utility model is equipped with a rotating device, a lifting and vibrating connector, a shaft, and a spiral blade on the main body of the silo. The rotating device drives the lifting and vibrating connector to continuously rotate the shaft and the spiral blade, generating axial conveying and radial shearing force on the material inside the silo, effectively breaking the arching phenomenon caused by the material. At the same time, the lifting and vibrating connector enables the shaft to generate periodic axial vibration and vertical displacement during rotation, further loosening the attached and stuck material, and enhancing the silo's ability to break arches and prevent blockages. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the arch-breaking device of this utility model; Figure 2 This utility model Figure 1 Structural sectional view; Figure 3 This is a schematic diagram of the lifting and vibration connecting component of this utility model; Figure 4 This is a schematic diagram of the spiral blade structure of this utility model.

[0012] In the diagram: 100, main body of the hopper; 101, upper shell; 102, lower shell; 103, cover; 104, discharge port; 200, rotating device; 300, lifting and vibration connector; 301, elastic connecting rod; 302, fixed plate; 303, arc-shaped protrusion; 304, contact rod; 400, shaft; 401, support rod; 402, fixing component; 500, spiral blade. Detailed Implementation

[0013] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0014] Please see the appendix Figure 1-4 A material silo double helix arch breaking device includes a silo body 100, on which an inlet and an outlet 104 are provided; A rotating device 200 is provided on the hopper body 100. In this embodiment, optionally, the rotating device 200 includes a motor and a reducer. A lifting and vibration connector 300 is provided at the output end of the rotating device 200. The lifting and vibration connector 300 extends into the hopper body 100 and is connected to a shaft 400. In this embodiment, a movable opening is provided on the hopper body 100 for the insertion of the lifting and vibration connector 300. One end of the lifting and vibration connector 300 is rotatably connected to the movable opening via a bearing, and the other end extends into the hopper body 100 and is connected to the shaft 400. Coaxial with the main body 100 of the silo, the outer side of the shaft 400 is provided with two sets of spiral blades 500 arranged in a ring array to form a double spiral structure; the rotating device 200 drives the lifting and vibrating connector 300 to drive the shaft 400 and the spiral blades 500 to rotate continuously, generating axial conveying and radial shearing force on the material in the main body 100 of the silo, effectively breaking the arching phenomenon caused by the material. At the same time, the lifting and vibrating connector 300 enables the shaft 400 to generate periodic axial vibration and vertical displacement during rotation, further loosening the attached and stuck material, and enhancing the silo's ability to break arches and prevent blockages. In this embodiment, the lifting vibration connector 300 includes an elastic connecting rod 301 connected to the output end of the rotating device 200 and the shaft 400. Optionally, the elastic connecting rod 301 in this embodiment is an elastic telescopic rod, which includes a fixed sleeve, a movable column movably inserted into one end of the fixed sleeve, a spring connecting the movable column and the inner wall of the fixed sleeve, a groove provided on the inner wall of the fixed sleeve, and a slider that cooperates with the groove on the outer wall of the movable column, so that the elastic connecting rod 301 can transmit rotational force while extending and retracting. Of course, in order to replace it after long-term use, the elastic connecting rod 301 can be fixedly connected to the output end of the rotating device 200 and the shaft 400 by bolts. The outer wall of the shaft 400 is provided with a contact rod 304, and a fixed plate 302 is movably sleeved on the outer side of the elastic connecting rod 301. The fixed plate 302 is located above the contact rod 304 and is connected to the inner wall of the hopper body 100. In this embodiment, the top of the fixed plate 302 is connected to an L-shaped bracket by bolts. One end of the L-shaped bracket is fixed to the top inner wall of the hopper body 100. A number of arc-shaped protrusions 303 are provided on one side of the fixed plate 302 to drive the contact rod 304 to drive the shaft 400 downward.

[0015] When the rotating device 200 drives the lifting vibration connector 300 to rotate the shaft 400 and the spiral blade 500, the contact rod 304 on the shaft 400 intermittently contacts the arc-shaped protrusion 303 as it rotates. With the help of the contour of the arc-shaped protrusion 303, the shaft 400 and the spiral blade 500 are forced to move axially downward a preset distance against the elastic force of the elastic connecting rod 301 (this distance can be determined by selecting an arc-shaped protrusion 303 of appropriate size, which will not be described in detail here). When the contact rod 304 disengages from the arc-shaped protrusion 303, the elastic connecting rod 301 drives the shaft 400, the spiral blade 500 and the contact rod 304 to return to their original position. This causes the shaft 400 and the spiral blade 500 to move up and down and vibrate while rotating continuously, which further breaks the static friction of the material, eliminates the arching phenomenon, and also effectively prevents the material from adhering to the surface of the spiral blade 500, improves the uniformity and continuity of the discharge, and enhances the overall arching efficiency and system stability. It should be noted that there is a certain gap between the inner wall of the hopper body 100 and the shaft 400 and the spiral blade 500, which does not interfere with the vertical displacement of the shaft 400 and the spiral blade 500.

[0016] Please see the appendix Figure 2-4 Preferably, the spiral blade 500 in this embodiment is provided with several sets of support rods 401 on its inner side. In this embodiment, at least three sets of support rods 401 are provided on the inner side of each spiral blade 500. The support rods 401 are distributed in a specific layout: one set is located at the top of the spiral blade 500, one set is located at the bottom, and another set is located in the middle of the spiral blade 500. The length of the at least three sets of support rods 401 gradually decreases from top to bottom. The several sets of support rods 401 provide uniform and stable radial and axial support for the spiral blade 500, effectively resisting the uneven load brought by the material and extending the service life of the spiral blade 500. One end of the several sets of support rods 401 is fixedly connected to the shaft 400, and the other end is detachably connected to the spiral blade 500 through the fastener 402. The fastener 402 in this embodiment includes a fixing bolt. The detachable connection method based on the fixing bolt greatly facilitates the independent disassembly, replacement, or maintenance of the spiral blade 500.

[0017] Please see the appendix Figure 2-4 Preferably, in this embodiment, the diameter of the spiral blade 500 gradually decreases from top to bottom. This arrangement allows the larger diameter of the upper end of the spiral blade 500 to contact and break the solid material arch formed on the upper part of the hopper body 100 when it rotates to break the arch, thus effectively addressing the core blockage. As the spiral blade 500 extends downward, its diameter gradually decreases, which not only creates a gradual compression and guidance of the material from top to bottom, but also increases the gap between the lower part of the spiral blade 500 and the hopper wall, providing more space for the smooth fall of the material.

[0018] Please see the appendix Figure 2-4Preferably, in this embodiment, there are two sets of arc-shaped protrusions 303, which are symmetrically arranged at the bottom of the fixed disk 302. The contact rods 304 are L-shaped, and there are two sets of contact rods 304 symmetrically arranged on the outer wall of the shaft 400. The contact rods 304 and the arc-shaped protrusions 303 correspond one-to-one. In this embodiment, a ball bearing is also embedded at the end of the contact rod 304 away from the shaft 400 so as to slide in contact with the fixed disk 302 and the arc-shaped protrusions 303. When the shaft 400 rotates, it can simultaneously contact the corresponding arc-shaped protrusions 303 through the two sets of contact rods 304, thereby improving the axial displacement stability and vibration uniformity of the shaft 400.

[0019] Preferably, the hopper body 100 of this embodiment includes an upper shell 101 that is hollow at both the top and bottom, a lower shell 102 that is detachably connected to the bottom of the upper shell 101, and a cover 103 that is detachably connected to the top of the upper shell 101 and is used to close the top of the upper shell 101. Optionally, in this embodiment, the outer walls of the top and bottom of the upper shell 101 are integrally provided with an annular protrusion 1, and the top of the lower shell 102 is correspondingly integrally provided with an annular protrusion 2. The upper shell 101 is detachably connected to the lower shell 102 via the annular protrusion 1 at its bottom and the annular protrusion 2 at its bottom by means of a bolt-like structure. At the same time, the upper shell 101 is connected to the cover 103 via the annular protrusion 1 at its top. The detachable connection is achieved through a bolt-type structure, thus forming a rigid and sealed container that is easy to disassemble and assemble. This greatly facilitates the daily maintenance, internal cleaning, and component replacement of the device. Operators can quickly disassemble the connection parts to inspect or replace core components such as the spiral blade 500 and shaft 400 inside the shell. The lower shell 102 has a trapezoidal vertical cross section, which forms a natural flow guide slope on its inner wall, effectively guiding the material to converge towards the discharge port 104 and discharge it smoothly, reducing the residue and deposition of material in the corners of the silo wall. The rotating device 200 and the feed inlet are both located on the cover 103, and the discharge port 104 is located at the bottom of the lower shell 102.

[0020] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A double-helix arch-breaking device for a material silo, comprising a silo body (100), wherein the silo body (100) is provided with an inlet and an outlet (104), characterized in that: The silo body (100) is provided with a rotating device (200), and the output end of the rotating device (200) is provided with a lifting vibration connector (300). The lifting vibration connector (300) extends into the silo body (100) and is connected to a shaft (400). Two sets of spiral blades (500) are arranged in a ring array on the outside of the shaft (400). The lifting vibration connector (300) includes an elastic connecting rod (301) connected to the output end of the rotating device (200) and the shaft (400). The outer wall of the shaft (400) is provided with a contact rod (304). A fixed plate (302) is movably sleeved on the outer side of the elastic connecting rod (301). The fixed plate (302) is connected to the inner wall of the hopper body (100). A number of arc-shaped protrusions (303) are provided on one side of the fixed plate (302) for driving the contact rod (304) to drive the shaft (400) downward.

2. The material silo double-spiral arch-breaking device according to claim 1, characterized in that, The spiral blade (500) has several sets of support rods (401) on its inner side. One end of each set of support rods (401) is fixedly connected to the shaft (400), and the other end is detachably connected to the spiral blade (500) through a fastener (402).

3. The material silo double-spiral arch-breaking device according to claim 1, characterized in that, The diameter of the spiral blade (500) gradually decreases from top to bottom.

4. The material silo double-spiral arch-breaking device according to claim 1, characterized in that, The arc-shaped protrusions (303) are provided in two sets, and the two sets of arc-shaped protrusions (303) are symmetrically arranged at the bottom of the fixed plate (302). The contact rods (304) are L-shaped, and the contact rods (304) are provided in two sets and symmetrically arranged on the outer wall of the shaft (400). The contact rods (304) and the arc-shaped protrusions (303) correspond one-to-one.

5. The material silo double-spiral arch-breaking device according to claim 1, characterized in that, The hopper body (100) includes an upper shell (101) that is hollow at both the top and bottom, a lower shell (102) that is detachably connected to the bottom of the upper shell (101), and a cover (103) that is detachably connected to the top of the upper shell (101) and is used to close the top of the upper shell (101). The rotating device (200) and the feed inlet are both located on the cover (103), and the discharge port (104) is located at the bottom of the lower shell (102).

6. The material silo double-spiral arch-breaking device according to claim 2, characterized in that, The fastener (402) includes a fixing bolt.

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