A four-way hopper for sand and gravel conveyors

Abstract

This utility model relates to the field of sand and gravel aggregate production technology, specifically to a four-way hopper for sand and gravel conveyors. The four-way hopper includes a hopper body, a first lateral discharge channel, a second lateral discharge channel, and a bottom openable discharge channel. The hopper body is positioned below the material drop point of the incoming conveyor belt. The first lateral discharge channel is located on one side of the hopper body; the second lateral discharge channel is located on the other side of the hopper body; and the bottom openable discharge channel is located below the hopper body. The inlets of the first and second lateral discharge channels are both higher than the inlet of the bottom openable discharge channel. This utility model can solve the problems of excessive finished material production capacity leading to hopper overflow, insufficient sand and gravel transfer and adjustment capabilities leading to belt conveyor damage, and severe wear on the hopper's discharge channels caused by sand and gravel spillage in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel aggregate production technology, specifically to a four-way hopper for a sand and gravel conveyor. Background Technology

[0002] Belt conveyors, as the material transfer hub of sand and gravel processing systems, play a crucial role in addressing the dynamic adjustment needs of finished aggregate gradation. To address the common problem of excessive finished material production capacity in sand and gravel processing systems potentially leading to silo overflows, surplus finished material needs to be either returned to the processing system for re-crushing and processing or transported to external storage.

[0003] In addition, existing belt conveyor and hopper combinations often have the following problems: 1) Insufficient capacity for adjusting the transfer of sand and gravel. For example, when the belt conveyor stops, the sand and gravel flowing out of the hopper will quickly fill the guide chute and overflow onto the belt conveyor, causing damage. 2) Severe wear occurs on the discharge channel of the hopper during the sand and gravel discharge process, reducing the service life of the hopper.

[0004] In summary, there is a need to provide a four-way hopper for sand and gravel conveyors to solve the problems of excessive finished material production capacity leading to hopper overflow, insufficient sand and gravel transfer and adjustment capabilities leading to belt conveyor damage, and severe wear on the hopper's discharge channel caused by sand and gravel spillage in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a four-way hopper for a sand and gravel conveyor, and the specific technical solution is as follows: A four-way hopper for a sand and gravel conveyor includes a hopper body, a first lateral discharge channel, a second lateral discharge channel, and a bottom openable discharge channel. The hopper body is located below the material drop point of the incoming conveyor belt, and its inlet is correspondingly positioned to the drop point. The first lateral discharge channel is located on one side of the hopper body, and its inlet is connected to the first discharge port of the hopper body, while its discharge port is connected to the finished product silo. The second lateral discharge channel is located on the other side of the hopper body, and its inlet is connected to the second discharge port of the hopper body, while its discharge port is connected to the finished product silo. The bottom openable discharge channel is located below the hopper body, and its inlet is connected to the third discharge port of the hopper body, while its discharge port is correspondingly positioned to the receiving end of the conveyor belt below. The inlets of the first and second lateral discharge channels are both higher than the inlet of the bottom openable discharge channel.

[0006] Optionally, the first lateral discharge channel includes a first discharge channel and a second discharge channel that are sequentially connected along the direction of sand and gravel discharge; multiple first baffles are installed in the first discharge channel; the multiple first baffles are spaced apart in the material flow concentration area of ​​the first discharge channel; multiple second baffles are installed in the second discharge channel; the multiple second baffles are spaced apart in the material flow concentration area of ​​the second discharge channel.

[0007] Optionally, the second lateral discharge channel includes a third discharge channel and a fourth discharge channel that are sequentially connected along the direction of sand and gravel discharge; multiple third baffles are installed in the third discharge channel; the multiple third baffles are spaced apart in the material flow concentration area of ​​the third discharge channel; multiple fourth baffles are installed in the fourth discharge channel; the multiple fourth baffles are spaced apart in the material flow concentration area of ​​the fourth discharge channel.

[0008] Optionally, the No. 1 discharge channel and the No. 3 discharge channel are symmetrically arranged on both sides of the hopper body, and the angle between the central axis of the No. 1 discharge channel and the central axis of the hopper body and the central axis of the No. 3 discharge channel and the central axis of the hopper body are both greater than the natural angle of repose of the material.

[0009] Optionally, the angle between the central axis of the first discharge channel and the central axis of the hopper body, and the angle between the central axis of the third discharge channel and the central axis of the hopper body, are both 40°~45°.

[0010] Optionally, the discharge ports of the second and fourth discharge channels are both lower than the receiving end of the transfer belt conveyor.

[0011] Optionally, the bottom openable discharge channel includes a fifth discharge channel and a removable baffle; the removable baffle is removably disposed on the fifth discharge channel; and a mounting hole for inserting the removable baffle is provided on the fifth discharge channel.

[0012] Optionally, the bottom openable discharge channel further includes a driving component; the driving component is disposed outside the fifth discharge channel, and its output end is connected to the removable baffle.

[0013] Optionally, the driving component includes a linear motor, an electric actuator, a hydraulic cylinder, or a pneumatic actuator.

[0014] Optionally, the four-way hopper for the sand and gravel conveyor also includes a support frame; the support frame is disposed below the hopper body and connected to the bottom of the hopper body.

[0015] The application of the technical solution of this utility model has at least the following beneficial effects: (1) The present invention provides a four-way hopper for a sand and gravel conveyor, which can solve the problems of excessive finished product capacity leading to hopper overflow and insufficient sand and gravel transfer adjustment capacity leading to belt conveyor damage in the prior art. Specifically, in the first working condition, the bottom openable discharge channel is closed, and the first side discharge channel and the second side discharge channel are opened. The sand and gravel fall into the hopper body through the material drop point of the incoming belt conveyor until the material level rises to the inlet of the first side discharge channel and the inlet of the second side discharge channel. Then, the sand and gravel slide out into the finished product bin through the first side discharge channel and the second side discharge channel, respectively. If excessive finished material production capacity leads to hopper overflow, a second working condition needs to be added to the first working condition. This involves opening the bottom-openable discharge channel, allowing sand and gravel to fall from the incoming conveyor belt into the hopper body, and then directly into the receiving end of the transfer conveyor belt via the bottom-openable discharge channel. The transfer conveyor then sends the sand and gravel back to the sand and gravel processing system for re-crushing or to external storage. Furthermore, combining the first and second working conditions significantly improves the sand and gravel transfer and adjustment capabilities, solving the problem of insufficient transfer and adjustment capabilities in existing technologies that lead to damage to the belt conveyor.

[0016] (2) In this utility model, multiple No. 1 baffles are arranged at intervals in the material flow concentration area of ​​the No. 1 discharge channel, multiple No. 2 baffles are arranged at intervals in the material flow concentration area of ​​the No. 2 discharge channel, multiple No. 3 baffles are arranged at intervals in the material flow concentration area of ​​the No. 3 discharge channel, and multiple No. 4 baffles are arranged at intervals in the material flow concentration area of ​​the No. 4 discharge channel. This facilitates the formation of a material lining on the inner walls of the No. 1, No. 2, No. 3 and No. 4 discharge channels when the sand and gravel are discharged, thereby reducing the wear on the No. 1, No. 2, No. 3 and No. 4 discharge channels.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a four-way hopper for a sand and gravel conveyor in one of the embodiments; Among them, 1. Hopper body, 2. First side discharge channel, 2.1, No. 1 discharge channel, 2.2, No. 2 discharge channel, 2.3, No. 1 baffle, 2.4, No. 2 baffle, 3. Second side discharge channel, 3.1, No. 3 discharge channel, 3.2, No. 4 discharge channel, 3.3, No. 3 baffle, 3.4, No. 4 baffle, 4. Bottom openable discharge channel, 4.1, No. 5 discharge channel, 4.2, removable baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] Example: See Figure 1 A four-way hopper for a sand and gravel conveyor includes a hopper body 1, a first lateral discharge channel 2, a second lateral discharge channel 3, and a bottom openable discharge channel 4. The hopper body 1 is positioned below the material drop point of the incoming conveyor belt, with its inlet corresponding to the drop point. The first lateral discharge channel 2 is located on one side of the hopper body 1, with its inlet connected to the first discharge port of the hopper body 1 and its discharge port connected to the finished product hopper. The second lateral discharge channel 3 is located on the bottom openable discharge channel 4. On the other side of the hopper body 1, its inlet is connected to the second outlet of the hopper body 1, and its outlet is connected to the finished product silo; the bottom openable discharge channel 4 is located below the hopper body 1, and its inlet is connected to the third outlet of the hopper body 1, and its outlet is correspondingly located to the receiving end of the conveyor belt below; the inlet of the first lateral discharge channel 2 and the inlet of the second lateral discharge channel 3 are both higher than the inlet of the bottom openable discharge channel 4.

[0021] The first lateral discharge channel 2 includes a first discharge channel 2.1 and a second discharge channel 2.2 connected sequentially along the direction of sand and gravel discharge. Multiple first baffles 2.3 are installed within the first discharge channel 2.1. These first baffles 2.3 are spaced apart within the material flow concentration area of ​​the first discharge channel 2.1, specifically on the sidewall of the first discharge channel 2.1 opposite to the discharge direction of the first discharge port. Multiple second baffles 2.4 are installed within the second discharge channel 2.2. These second baffles 2.4 are spaced apart within the material flow concentration area of ​​the second discharge channel 2.2, specifically on the sidewall of the second discharge channel 2.2 opposite to the discharge direction of the discharge port of the first discharge channel 2.1.

[0022] The second lateral discharge channel 3 includes a third discharge channel 3.1 and a fourth discharge channel 3.2 that are sequentially connected along the direction of sand and gravel discharge. Multiple third baffles 3.3 are installed within the third discharge channel 3.1. These baffles 3.3 are spaced apart within the material flow concentration area of ​​the third discharge channel 3.1, specifically on the sidewall of the third discharge channel 3.1 opposite to the discharge direction of the second discharge port. Similarly, multiple fourth baffles 3.4 are installed within the fourth discharge channel 3.2. These baffles 3.4 are spaced apart within the material flow concentration area of ​​the fourth discharge channel 3.2, specifically on the sidewall of the fourth discharge channel 3.2 opposite to the discharge direction of the discharge port of the third discharge channel 3.1.

[0023] The first discharge channel 2.1 and the third discharge channel 3.1 are symmetrically arranged on both sides of the hopper body 1. The angles between the central axis of the first discharge channel 2.1 and the central axis of the hopper body 1, and between the central axis of the third discharge channel 3.1 and the central axis of the hopper body 1, are both greater than the natural angle of repose of the material. Specifically, the angles between the central axis of the first discharge channel 2.1 and the central axis of the hopper body 1, and between the central axis of the third discharge channel 3.1 and the central axis of the hopper body 1, are both 40°-45° (45° is a specific choice), facilitating the discharge of sand and gravel.

[0024] The discharge ports of the second discharge channel 2.2 and the fourth discharge channel 3.2 are both lower than the receiving end of the transfer belt, so as to prevent the material from falling onto the transfer belt and causing damage to the transfer belt when it is discharged from the second discharge channel 2.2 and the fourth discharge channel 3.2.

[0025] The bottom openable discharge channel 4 includes a fifth discharge channel 4.1 and a removable baffle 4.2; the removable baffle 4.2 is removably disposed on the fifth discharge channel 4.1; and the fifth discharge channel 4.1 is provided with mounting holes for the removable baffle 4.2 to be inserted.

[0026] The bottom openable discharge channel 4 also includes a driving component (not shown in the figure); the driving component is located outside the fifth discharge channel 4.1, and its output end is connected to the removable baffle 4.2, which is used to drive the removable baffle 4.2 to be inserted or withdrawn in the fifth discharge channel 4.1.

[0027] The drive component includes a linear motor, an electric actuator, a hydraulic cylinder, or a pneumatic actuator, such as an electric actuator.

[0028] The four-way hopper for the sand and gravel conveyor also includes a support frame (not shown in the figure); the support frame is located below the hopper body 1 and is connected to the bottom of the hopper body 1.

[0029] The working principle of the four-way hopper for the sand and gravel conveyor is as follows: In the first working condition, the bottom openable discharge channel 4 is closed, and the first side discharge channel 2 and the second side discharge channel 3 are opened. The sand and gravel fall into the hopper body 1 through the material drop point of the incoming conveyor belt until the material level rises to the inlet of the first side discharge channel 2 and the inlet of the second side discharge channel 3. Then, the sand and gravel slide out into the finished product bin through the first side discharge channel 2 and the second side discharge channel 3 respectively. Specifically, multiple No. 1 baffles 2.3 are spaced apart in the material flow concentration area of ​​the No. 1 discharge channel 2.1, multiple No. 2 baffles 2.4 are spaced apart in the material flow concentration area of ​​the No. 2 discharge channel 2.2, multiple No. 3 baffles 3.3 are spaced apart in the material flow concentration area of ​​the No. 3 discharge channel 3.1, and multiple No. 4 baffles 3.4 are spaced apart in the material flow concentration area of ​​the No. 4 discharge channel 3.2. This facilitates the formation of a material lining on the inner walls of the No. 1, No. 2, No. 3, No. 1, and No. 4 discharge channels 2.1, 2. 2, 3. 1, and 4, 3. 2, when the sand and gravel flow out, reducing wear on these channels.

[0030] If excessive finished material production capacity leads to silo overflow, a second working condition needs to be added to the first working condition. This involves opening the bottom openable discharge channel 4, allowing sand and gravel to fall from the incoming conveyor belt into the hopper body 1, and then directly down through the bottom openable discharge channel 4 to the receiving end of the transfer conveyor. The transfer conveyor then sends the sand and gravel back to the sand and gravel processing system for re-crushing or to external storage. Furthermore, combining the first and second working conditions significantly improves the sand and gravel transfer and adjustment capabilities, solving the problem of insufficient sand and gravel transfer and adjustment capabilities leading to belt conveyor damage in existing technologies.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A four-way hopper for a sand and gravel conveyor, characterized in that, The hopper includes a hopper body (1), a first lateral discharge channel (2), a second lateral discharge channel (3), and a bottom openable discharge channel (4). The hopper body (1) is located below the material drop point of the incoming conveyor belt, and its inlet is correspondingly located to the drop point. The first lateral discharge channel (2) is located on one side of the hopper body (1), and its inlet is connected to the first discharge port of the hopper body (1), while its discharge port is connected to the finished product silo. The second lateral discharge channel (3) is located on the hopper body (1). On the other side of the hopper body (1), its inlet is connected to the second outlet of the hopper body (1), and its outlet is connected to the finished product silo; the bottom openable discharge channel (4) is located below the hopper body (1), and its inlet is connected to the third outlet of the hopper body (1), and its outlet is correspondingly set to the receiving end of the conveyor belt below; the inlet of the first side discharge channel (2) and the inlet of the second side discharge channel (3) are both higher than the inlet of the bottom openable discharge channel (4).

2. The four-way hopper for a sand and gravel conveyor according to claim 1, characterized in that, The first lateral discharge channel (2) includes a first discharge channel (2.1) and a second discharge channel (2.2) that are sequentially connected along the direction of sand and gravel discharge. Multiple first baffles (2.3) are installed in the first discharge channel (2.1). The multiple first baffles (2.3) are spaced apart in the material flow concentration area of ​​the first discharge channel (2.1). Multiple second baffles (2.4) are installed in the second discharge channel (2.2). The multiple second baffles (2.4) are spaced apart in the material flow concentration area of ​​the second discharge channel (2.2).

3. The four-way hopper for a sand and gravel conveyor according to claim 2, characterized in that, The second lateral discharge channel (3) includes a third discharge channel (3.1) and a fourth discharge channel (3.2) connected sequentially along the direction of sand and gravel discharge; multiple third baffles (3.3) are installed in the third discharge channel (3.1); the multiple third baffles (3.3) are spaced apart in the material flow concentration area of ​​the third discharge channel (3.1); multiple fourth baffles (3.4) are installed in the fourth discharge channel (3.2); the multiple fourth baffles (3.4) are spaced apart in the material flow concentration area of ​​the fourth discharge channel (3.2).

4. The four-way hopper for a sand and gravel conveyor according to claim 3, characterized in that, The first discharge channel (2.1) and the third discharge channel (3.1) are symmetrically arranged on both sides of the hopper body (1), and the angle between the central axis of the first discharge channel (2.1) and the central axis of the hopper body (1) and the central axis of the third discharge channel (3.1) and the central axis of the hopper body (1) are both greater than the natural angle of repose of the material.

5. The four-way hopper for a sand and gravel conveyor according to claim 4, characterized in that, The angle between the central axis of the first discharge channel (2.1) and the central axis of the hopper body (1) and the angle between the central axis of the third discharge channel (3.1) and the central axis of the hopper body (1) are both 40°~45°.

6. The four-way hopper for a sand and gravel conveyor according to claim 3, characterized in that, The discharge ports of the second discharge channel (2.2) and the fourth discharge channel (3.2) are both lower than the receiving end of the transfer belt conveyor.

7. The four-way hopper for a sand and gravel conveyor according to any one of claims 1 to 6, characterized in that, The bottom openable discharge channel (4) includes a fifth discharge channel (4.1) and a removable baffle (4.2); the removable baffle (4.2) is removably disposed on the fifth discharge channel (4.1); and an installation hole for inserting the removable baffle (4.2) is provided on the fifth discharge channel (4.1).

8. The four-way hopper for a sand and gravel conveyor according to claim 7, characterized in that, The bottom openable discharge channel (4) also includes a driving component; the driving component is located outside the fifth discharge channel (4.1), and its output end is connected to the removable baffle (4.2).

9. The four-way hopper for a sand and gravel conveyor according to claim 8, characterized in that, The driving component includes a linear motor, an electric push rod, a hydraulic cylinder, or a pneumatic push rod.

10. The four-way hopper for a sand and gravel conveyor according to claim 9, characterized in that, It also includes a support frame; the support frame is located below the hopper body (1) and is connected to the bottom of the hopper body (1).

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