Belt weigher device for uniform-proportion batching area of stock bin
By installing a lower and upper air duct in the belt scale device and using a hot air blower to heat the transmission belt, the problem of inaccurate measurement caused by increased belt hardness was solved, and high-accuracy weighing was achieved in cold weather.
Patent Information
- Application Number
- CN202520173740.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-26
AI Technical Summary
In cold weather, existing belt scales become less accurate and affect product quality because the belt stiffens and cannot fully adhere to the measuring components.
The belt scale device is equipped with a lower air duct and an upper air duct, and air supply holes are opened on its outer wall. The transmission belt is heated by a hot air blower. The lower air duct and the upper air duct work together to heat and soften the belt, remove impurities, and ensure that the belt is fully in contact with the surface of the device.
The weighing accuracy of the belt scale was improved during winter use, the effect of temperature on weighing was reduced, and impurities on the belt surface were removed, further improving the weighing accuracy.
Smart Images

Figure CN223896882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt scale technology, specifically to a belt scale device for a uniform proportioning material distribution area in a silo. Background Technology
[0002] In various industrial sectors, such as metallurgy, chemical industry, ports, coal mines, building materials, and power, belt scales are an important metering device for bulk materials. Their accuracy and stability are crucial to production efficiency and product quality. In particular, belt scales used for proportioning materials in silos often have a direct impact on the quality of the finished product.
[0003] Existing belt scale devices have many problems during use. Among them, the most serious problem is that the measurement effect is easily affected. Due to the special properties of the belt itself, its overall hardness is easily affected by temperature in cold weather, making it harder. As a result, the surface of the belt cannot repeatedly adhere to the measurement-related components during use, which seriously affects the accuracy of measurement and will affect the quality of subsequent products.
[0004] In view of this, a belt scale device for uniform proportioning of materials in a silo is provided to overcome the above-mentioned defects. Utility Model Content
[0005] The purpose of this invention is to provide a belt scale device for a uniform proportioning area of a silo, so as to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a belt scale device for a uniform proportioning area of a silo, including a base plate, a weighing component body and a transmission belt. A first mounting plate and a second mounting plate are symmetrically installed on the top surface of the transmission belt. A lower air duct and an upper air duct are arranged between the first mounting plate and the second mounting plate. Air supply holes are opened on the outer walls of the lower air duct and the upper air duct. The transmission belt is sleeved on the outer wall of the upper air duct, and the air supply holes are located at the bottom of the transmission belt.
[0007] Furthermore, the air inlet is fixedly installed on the side wall of the first mounting plate and the second mounting plate, and the upper air duct is rotatably installed on the side wall of the second mounting plate.
[0008] Furthermore, a hot air blower is fixedly installed on the top surface of the base plate, and a through groove adapted to the hot air blower is opened at one end of the lower air duct, and one end of the hot air blower is connected to the through groove.
[0009] Furthermore, the air supply holes are evenly distributed on the outer wall of the upper air duct, and air supply holes are provided on the top and one side of the outer wall of the lower air duct.
[0010] Furthermore, a rotatable rotating rod is installed at the inner edge of the lower air duct, a fan is fixedly installed at the top of the rotating rod, a spoiler is fixedly installed on the outer wall of the rotating rod, and through holes are opened at the inner edge of the lower air duct. There are multiple through holes, and the multiple through holes are distributed in a circumferential array at the edge of the rotating rod.
[0011] Furthermore, an air inlet is provided at the inner edge of the upper air duct, and a diverter plate is fixedly installed on the inner wall of the upper air duct.
[0012] Furthermore, a collection cover that is adapted to multiple through holes is installed on the outer wall of the first mounting plate. A delivery pipe is fixedly connected to one end of the collection cover away from the first mounting plate, and the other end of the delivery pipe is fixedly connected to one side of the air inlet.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By setting up a lower and upper air duct and opening air supply holes on the outer walls of both, the device can be fully heated and softened during operation, allowing the drive belt to fit more closely to the surface of the device, reducing the impact of temperature on the device, and improving the weighing accuracy of the device when used in winter.
[0015] When hot air is discharged, it can also blow off impurities on the outer wall of the transmission belt, so that the surface of the transmission belt will not have too many impurities attached, which further improves the weighing accuracy of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the ventilation duct in this utility model;
[0019] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.
[0020] In the diagram: 1. Base plate; 2. Weighing component body; 3. Drive belt; 4. Hot air blower; 5. First mounting plate; 6. Second mounting plate; 7. Lower air duct; 8. Collector cover; 9. Conveying pipe; 10. Air inlet; 11. Upper air duct; 12. Diverter plate; 13. Air inlet; 14. Through hole; 15. Rotating rod; 16. Fan; 17. Baffle plate. Detailed Implementation
[0021] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] See Figure 1-4 A belt scale device for uniform proportioning of materials in a silo includes a base plate 1, a weighing component body 2, and a transmission belt 3. A first mounting plate 5 and a second mounting plate 6 are symmetrically installed on the top surface of the transmission belt 3. A lower air duct 7 and an upper air duct 11 are arranged between the first mounting plate 5 and the second mounting plate 6. Air supply holes 10 are opened on the outer walls of the lower air duct 7 and the upper air duct 11. The transmission belt 3 is sleeved on the outer wall of the upper air duct 11, and the air supply holes 10 are located at the bottom of the transmission belt 3.
[0024] Furthermore, the air inlet 10 is fixedly installed on the side wall of the first mounting plate 5 and the second mounting plate 6, and the upper air duct 11 is rotatably installed on the side wall of the second mounting plate 6. By setting the air inlet 10 to be fixedly installed on the side wall of the first mounting plate 5 and the second mounting plate 6, and the upper air duct 11 to be rotatably installed on the side wall of the second mounting plate 6, the upper air duct 11 can replace one of the drive rollers in the belt scale, thus optimizing the device without affecting normal use.
[0025] In addition, a rotatable rotating rod 15 is installed at the inner edge of the lower air duct 7, a fan 16 is fixedly installed at the top of the rotating rod 15, a spoiler 17 is fixedly installed on the outer wall of the rotating rod 15, and through holes 14 are opened at the inner edge of the lower air duct 7. There are multiple through holes 14, and the multiple through holes 14 are distributed in a circumferential array at the edge of the rotating rod 15.
[0026] In addition, a hot air blower 4 is fixedly installed on the top surface of the base plate 1, and a through groove adapted to the hot air blower 4 is opened at one end of the lower air duct 7, and one end of the hot air blower 4 is connected to the through groove.
[0027] By setting up the rotating rod 15 and the fan 16, when the hot air blower 4 delivers hot air into the lower air duct 7, the rotating rod 15 and the components installed on the outer wall of the rotating rod 15 will be driven to rotate under the action of the fan 16. The baffle 17 is fixedly installed on the outer wall of the rotating rod 15. Therefore, during the process of the hot air blower 4 delivering hot air, the baffle 17 will rotate, thereby sending out some hot air from the air outlet 10 opened on the outer wall of the lower air duct 7, so as to achieve the effect of heating the outer wall of the transmission belt 3.
[0028] By setting through holes 14 and distributing multiple through holes 14 in a circumferential array at the edge of the rotating rod 15, the rotating rod 15 can rotate while the hot air in the lower air duct 7 can be discharged normally.
[0029] Furthermore, air supply holes 10 are evenly distributed on the outer wall of the upper air duct 11, and air supply holes 10 are provided on the top and one side of the outer wall of the lower air duct 7. An air inlet 13 is provided at the edge of the inner wall of the upper air duct 11. A diverter plate 12 is fixedly installed on the inner wall of the upper air duct 11. A collection cover 8 that is compatible with multiple through holes 14 is installed on the outer wall of the first mounting plate 5. A conveying pipe 9 is fixedly connected to one end of the collection cover 8 away from the first mounting plate 5, and the other end of the conveying pipe 9 is fixedly connected to one side of the air inlet 13.
[0030] By setting air inlets 10 evenly distributed on the outer wall of the upper air duct 11, while the lower air duct 7 only has air inlets 10 on the top and one side of its outer wall, the upper air duct 11 can fully heat the inside of the transmission belt 3 during rotation. The reason for setting the lower air duct 7 only to have air inlets 10 on the top and one side of its outer wall is to heat the outer wall of the air inlets 10 without causing excessive loss of hot air, which can then be utilized by the upper air duct 11.
[0031] An air inlet 13 is provided at the inner edge of the upper air duct 11, and a collection cover 8 that is compatible with multiple through holes 14 is installed on the outer wall of the first mounting plate 5. The end of the collection cover 8 away from the first mounting plate 5 is fixedly connected to the conveying pipe 9, and the other end of the conveying pipe 9 is fixedly connected to one side of the air inlet 13, so that the hot air discharged from the lower air duct 7 through the through holes 14 can enter the interior of the upper air duct 11 through the conveying pipe 9 and the air inlet 13.
[0032] By setting up the diverter plate 12, the hot air entering the upper air duct 11 can be divided into multiple parts so that it can be distributed more evenly. At the same time, it can also increase the overall strength of the upper air duct 11 and increase its service life.
[0033] In practice, when the belt scale is used in cold winter, the hardness of the transmission belt 3 on its surface will increase due to the weather. This will cause the transmission belt 3 to not fully adhere to the surface of the device during subsequent use, resulting in errors during use.
[0034] In this practical application, before using the device, the hot air blower 4 can be started first, and the drive belt 3 can be rotated normally.
[0035] After the hot air blower 4 is started and the transmission belt 3 begins to rotate, the hot air blower 4 will deliver hot air into the lower air duct 7. During the delivery process, it will drive the fan 16, the rotating rod 15, and the baffle 17 to rotate, so that the hot air in the lower air duct 7 can be discharged from the air outlets 10 on the top and sides of the lower air duct 7, heating the outside of the transmission belt 3 above the lower air duct 7. As the transmission belt 3 continues to rotate, the lower air duct 7 will continuously exhaust air, which will soften the outside of the transmission belt 3 and make it fully adhere to the surface of the device. After the hot air leaves the lower air duct 7, it will be transmitted to the inside of the upper air duct 11 through the conveying pipe 9. The upper air duct 11 acts as a conveying roller in the device. Therefore, when the transmission belt 3 rotates, the upper air duct 11 rotates synchronously. The hot air inside the upper air duct 11 is discharged outward during the rotation, which can heat and soften the inner wall of the transmission belt 3. With the combined action of the lower air duct 7 and the upper air duct 11, the transmission belt 3 can adhere to the surface of the device in subsequent use and will not easily have a weighing deviation.
[0036] By setting up a lower air duct 7 and an upper air duct 11, and opening air supply holes 10 on the outer walls of both, the device can be fully heated and softened during operation, allowing the transmission belt 3 to fit more closely to the surface of the device, reducing the impact of temperature on the device, and improving the weighing accuracy of the device when used in winter.
[0037] In addition, when the lower air duct 7 discharges hot air, it can also blow off the impurities on the outer wall of the transmission belt 3, so that the surface of the transmission belt 3 will not have too many impurities attached, which further improves the weighing accuracy of the device.
[0038] Working principle: When the belt scale is used in cold winter, the hardness of the transmission belt 3 on its surface will increase due to the weather. This will cause the transmission belt 3 to not fully adhere to the surface of the device during subsequent use, resulting in errors during use.
[0039] In this practical application, before using the device, the hot air blower 4 can be started first, and the drive belt 3 can be rotated normally.
[0040] After the hot air blower 4 is started and the transmission belt 3 begins to rotate, the hot air blower 4 will deliver hot air into the lower air duct 7. During the delivery process, it will drive the fan 16, the rotating rod 15, and the baffle 17 to rotate, so that the hot air in the lower air duct 7 can be discharged from the air outlets 10 on the top and sides of the lower air duct 7, heating the outside of the transmission belt 3 above the lower air duct 7. As the transmission belt 3 continues to rotate, the lower air duct 7 will continuously exhaust air, which will soften the outside of the transmission belt 3 and make it fully adhere to the surface of the device. After the hot air leaves the lower air duct 7, it will be transmitted to the inside of the upper air duct 11 through the conveying pipe 9. The upper air duct 11 acts as a conveying roller in the device. Therefore, when the transmission belt 3 rotates, the upper air duct 11 rotates synchronously. The hot air inside the upper air duct 11 is discharged outward during the rotation, which can heat and soften the inner wall of the transmission belt 3. With the combined action of the lower air duct 7 and the upper air duct 11, the transmission belt 3 can adhere to the surface of the device in subsequent use and will not easily have a weighing deviation.
[0041] By setting up a lower air duct 7 and an upper air duct 11, and opening air supply holes 10 on the outer walls of both, the device can be fully heated and softened during operation, allowing the transmission belt 3 to fit more closely to the surface of the device, reducing the impact of temperature on the device, and improving the weighing accuracy of the device when used in winter.
[0042] In addition, when the lower air duct 7 discharges hot air, it can also blow off the impurities on the outer wall of the transmission belt 3, so that the surface of the transmission belt 3 will not have too many impurities attached, which further improves the weighing accuracy of the device.
Claims
1. A belt scale device for a uniform proportioning batching area in a silo, comprising a base plate (1), a weighing component body (2), and a transmission belt (3), characterized in that, A first mounting plate (5) and a second mounting plate (6) are symmetrically mounted on the top surface of the transmission belt (3). A lower air duct (7) and an upper air duct (11) are provided between the first mounting plate (5) and the second mounting plate (6). Air supply holes (10) are provided on the outer walls of the lower air duct (7) and the upper air duct (11). The transmission belt (3) is sleeved on the outer wall of the upper air duct (11). The air supply holes (10) are located at the bottom of the transmission belt (3).
2. The belt scale device for uniform proportioning of materials in a silo as described in claim 1, characterized in that: The air inlet (10) is fixedly installed on the side wall of the first mounting plate (5) and the second mounting plate (6), and the upper air duct (11) is rotatably installed on the side wall of the second mounting plate (6).
3. The belt scale device for uniform proportioning material distribution in a silo as described in claim 1, characterized in that: A hot air blower (4) is fixedly installed on the top surface of the base plate (1). One end of the lower air duct (7) is provided with a through groove adapted to the hot air blower (4), and one end of the hot air blower (4) is connected to the through groove.
4. The belt scale device for uniform proportioning of materials in a silo as described in claim 1, characterized in that: The air supply holes (10) are evenly distributed on the outer wall of the upper air duct (11), and the top and one side of the outer wall of the lower air duct (7) are provided with air supply holes (10).
5. The belt scale device for uniform proportioning of materials in a silo as described in claim 1, characterized in that: A rotatable rotating rod (15) is installed at the inner edge of the lower air duct (7). A fan (16) is fixedly installed at the top of the rotating rod (15). A spoiler (17) is fixedly installed on the outer wall of the rotating rod (15). A through hole (14) is opened at the inner edge of the lower air duct (7). There are multiple through holes (14), and the multiple through holes (14) are distributed in a circular array at the edge of the rotating rod (15).
6. The belt scale device for uniform proportioning of materials in a silo as described in claim 5, characterized in that: An air inlet (13) is provided at the edge of the inner wall of the upper air duct (11), and a diverter plate (12) is fixedly installed on the inner wall of the upper air duct (11).
7. A belt scale device for uniform proportioning of materials in a silo as described in claim 6, characterized in that: The outer wall of the first mounting plate (5) is equipped with a flow collection cover (8) that is compatible with multiple through holes (14). The end of the flow collection cover (8) away from the first mounting plate (5) is fixedly connected to a delivery pipe (9), and the other end of the delivery pipe (9) is fixedly connected to one side of the air inlet (13).