A granulator dosing device

Abstract

The utility model belongs to the technical field of feeding equipment, it is a granulator ration feeding device, include: through a plurality of weighing sensor support on the support frame screw conveyer auger, set up in the first buffer subassembly of screw conveyer auger feed port, first buffer subassembly includes: hard connection on the support frame compensation cylinder, the feed port of screw conveyer auger is connected to the compensation cylinder upper and lower activity nest, the upper portion of compensation cylinder still be provided with the connecting piece for connecting the discharge gate of bunker. Through the design of first buffer subassembly reduces the impact force of material falling, further improves the accuracy of measurement. The activity nest design of compensation cylinder and the feed port of screw conveyer auger makes screw conveyer auger not directly with bunker equipment contact, reduces the direct contact of bunker equipment and screw conveyer auger because of bunker equipment vibration leads to factors, the influence to screw conveyer auger and weighing sensor, thereby improves the weighing accuracy of feeding device.

Description

Technical Field

[0001] This application relates to the field of feeding equipment technology, and in particular to a quantitative feeding device for a granulator. Background Technology

[0002] The raw materials for activated carbon granulation mainly fall into two categories: coal-based raw materials and wood-based raw materials. Coal-based raw materials mainly include anthracite, coal slime, lignite, etc.; wood-based raw materials include walnut shells, wood, fruit shells (such as coconut shells, olive pits, etc.), bamboo, crop straw, etc. After pretreatment (such as crushing, mixing, etc.), these raw materials can be used for activated carbon granulation.

[0003] In the activated carbon granulation process, common feeding methods include screw conveyor feeding and vibrating feeder feeding. Screw conveyors transport raw materials from one end to the other through rotating helical blades, suitable for powdery or granular materials, ensuring uniform feeding. Controlling the feed rate is a crucial step in the activated carbon granulation process. Too much or too little feed will affect the quality of the granulated product.

[0004] However, since the feeding device is generally rigidly connected to the feed hopper, it affects the accuracy of the feeding device's measurement. In response, patent application CN220925639U discloses an anti-airflow interference device for a closed quantitative feeder, which uses a flexible connecting pipe and air compensation to reduce the impact of the hopper equipment on the weighing accuracy of the feeding device. However, the flexible connecting pipe is vertically connected to the hopper outlet and the feeding device, which also affects the weighing accuracy of the feeding device. On the other hand, the air compensation structure is costly, complex, and has poor reliability. Utility Model Content

[0005] The technical problem this invention aims to solve is that the feeding accuracy of existing quantitative feeding devices for granulators is affected by adjacent equipment such as silos or granulators connected to the feeding device, resulting in large feeding and metering errors and poor accuracy.

[0006] To address the aforementioned problems, this utility model provides a quantitative feeding device for a granulator, comprising: a screw conveyor supported on a support frame by a plurality of weighing sensors; a first buffer assembly disposed at the feed inlet of the screw conveyor, the first buffer assembly comprising: a compensating cylinder rigidly connected to the support frame, the compensating cylinder being movably nested and connected to the feed inlet of the screw conveyor; and a connecting piece for connecting to the discharge port of a hopper is also disposed above the compensating cylinder.

[0007] The design of the first buffer component reduces the impact force of falling materials, further improving the accuracy of metering. The movable nesting design of the compensating cylinder and the feed inlet of the screw conveyor ensures that the screw conveyor does not directly contact the silo equipment, reducing the impact of factors such as silo equipment vibration causing direct contact between the silo equipment and the screw conveyor on the screw conveyor and weighing sensor, thereby improving the weighing accuracy of the feeding device.

[0008] In order to avoid direct contact between the screw conveyor or compensating cylinder and the silo equipment, and thus avoid the silo equipment affecting the weighing accuracy of the feeding device, a preferred improvement to the above-mentioned quantitative feeding device for the granulator is that the connecting piece is movably nested with the compensating cylinder.

[0009] In the above-mentioned quantitative feeding device for the granulator, a preferred option is that the connecting member and the compensation cylinder are movably nested together, with the diameter of the compensation cylinder being smaller than the diameter of the feed inlet.

[0010] In order to improve the sealing between the compensation cylinder and the feed inlet and to improve the buffering stability, a preferred improvement of the above-mentioned quantitative feeding device for the granulator is that a first soft annular plate is provided on the outer edge of the feed inlet, and the outer periphery of the first soft annular plate abuts against the inner wall of the compensation cylinder.

[0011] In order to improve the sealing between the compensation cylinder and the feed inlet and to improve the buffering stability, another preferred improvement of the above-mentioned quantitative feeding device for the granulator is that a second flexible annular plate is provided on the lower inner edge of the compensation cylinder, and the inner circumference of the second flexible annular plate abuts against the outer wall of the feed inlet.

[0012] As one option for connecting the aforementioned connector to the compensation cylinder, the diameter of the connector is smaller than the diameter of the compensation cylinder.

[0013] In order to improve the sealing between the compensation cylinder and the connecting piece and to improve the buffering stability, a preferred improvement of the above-mentioned quantitative feeding device for the granulator is that a third flexible annular plate is provided on the outer edge of the lower end of the connecting piece, and the outer periphery of the third flexible annular plate abuts against the inner wall of the compensation cylinder.

[0014] In order to improve the sealing between the compensation cylinder and the connecting member and to improve the buffering stability, another preferred improvement of the above-mentioned granulator quantitative feeding device is that a fourth flexible annular plate is provided on the upper inner edge of the compensation cylinder, and the outer periphery of the fourth flexible annular plate abuts against the outer wall of the connecting member.

[0015] In order to avoid direct contact between the screw conveyor and the granulation equipment, and to avoid the granulation equipment affecting the weighing accuracy of the quantitative feeding device, the quantitative feeding device for the granulator disclosed in this utility model further includes a second buffer component disposed at the discharge port of the screw conveyor.

[0016] The second buffer assembly includes a second compensation cylinder rigidly connected to the support frame, and the second compensation cylinder is movably nested and connected to the discharge port of the screw conveyor; a second connector for connecting to the feed port of the granulator is also provided below the second compensation cylinder.

[0017] The technical advantages of this application are as follows:

[0018] The design of the first buffer component reduces the impact force of falling materials, further improving the accuracy of metering. The movable nesting design of the compensating cylinder and the feed inlet of the screw conveyor ensures that the screw conveyor does not directly contact the silo equipment, reducing the impact of factors such as silo equipment vibration causing direct contact between the silo equipment and the screw conveyor on the screw conveyor and weighing sensor, thereby improving the weighing accuracy of the feeding device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a granulator quantitative feeding device provided in an embodiment of this application.

[0020] Figure 2 This is a schematic diagram showing the connection between the compensation cylinder and the feed inlet of the granulator quantitative feeding device provided in this application embodiment.

[0021] Figure 3 This is another schematic diagram showing the connection between the compensation cylinder and the feed inlet of the granulator quantitative feeding device provided in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram of the connection between the compensation cylinder and the connecting part of the quantitative feeding device for a granulator provided in this application embodiment.

[0023] Figure 5 This is another schematic diagram of the connection between the compensation cylinder and the connecting part of the granulator quantitative feeding device provided in the embodiments of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Support frame;

[0026] 2. Weighing sensor;

[0027] 3. Screw conveyor; 31. Inlet; 32. Outlet;

[0028] 4. First buffer assembly; 41. Compensation cylinder; 42. Connector; 411. First flexible annular sheet; 412. Second flexible annular sheet; 413. Third flexible annular sheet; 414. Fourth flexible annular sheet;

[0029] 5. Second buffer component. Detailed Implementation

[0030] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0031] like Figure 1 This invention illustrates one embodiment of the quantitative feeding device for a granulator provided by the present invention. The quantitative feeding device for a granulator includes: a screw conveyor 3 supported on a support frame 1 by a plurality of weighing sensors 2; a first buffer assembly 4 disposed at the feed inlet 31 of the screw conveyor 3, the first buffer assembly 4 including: a compensation cylinder 41 rigidly connected to the support frame 1, the compensation cylinder 41 being nested and connected to the feed inlet 31 of the screw conveyor 3; and a connector 42 for connecting to the discharge port of the hopper is also disposed above the compensation cylinder 41.

[0032] Specifically, in one embodiment, the screw conveyor 3 is supported on the support frame 1 by several weighing sensors 2, enabling the feeding device to sense and measure the weight of the material in real time. The weighing sensors 2, as primary conversion elements, convert the material weight into an electrical signal, which is then displayed numerically by a measuring instrument, facilitating monitoring and adjustment of the feeding rate. The first buffer assembly 4 includes a compensation cylinder 41 rigidly connected to the support frame 1. The compensation cylinder 41 is nested and connected to the feed inlet 31 of the screw conveyor 3, effectively reducing the impact force when the material falls from the hopper onto the screw conveyor, thus reducing measurement errors caused by the impact force. A connector 42 for connecting to the hopper discharge port is provided above the compensation cylinder 41, ensuring that the material can smoothly and stably enter the screw conveyor.

[0033] In some scenarios, silo equipment may experience vibrations or minor displacements during operation, which can affect the feeding device directly connected to it. Through an active nested design, the compensating cylinder 41 acts as an intermediate buffer layer, absorbing and dispersing these vibrations and displacements, reducing the transmission of errors to the screw conveyor auger 3 and the weighing sensor 2.

[0034] The nested design also allows the feeding device to better adapt to the discharge ports of hoppers of different sizes and shapes. By adjusting the nesting position and angle between the compensating cylinder and the screw conveyor inlet, it can be ensured that the material can smoothly enter the screw conveyor while reducing errors caused by material impact.

[0035] The above embodiments reduce the impact force of falling materials through the design of the first buffer component 4, further improving the accuracy of metering. The movable nesting design of the compensating cylinder 41 and the feed inlet 31 of the screw conveyor 3 prevents the screw conveyor 3 from directly contacting the silo equipment, reducing the impact of factors such as vibration of the silo equipment causing direct contact between the silo equipment and the screw conveyor 3 on the screw conveyor 3 and the weighing sensor, thereby improving the weighing accuracy of the feeding device.

[0036] In summary, the movable nesting design of the compensating cylinder 41 and the feed inlet 31 of the screw conveyor 3 is a significant innovation in the quantitative feeding device for the granulator of this invention. It not only improves the weighing accuracy and stability of the feeding device but also enhances its adaptability and maintainability, enabling the feeding device to better meet the needs of industrial production and improve production efficiency and product quality. Therefore, this feeding device has broad application prospects and promotional value in related fields.

[0037] Continue to refer to Figure 1 To further prevent the screw conveyor 3 from directly contacting the hopper equipment and thus avoiding any impact on the weighing accuracy of the feeding device, in some preferred embodiments, the connector 42 and the compensating cylinder 41 are vertically nested. The hopper equipment may experience vibrations and impacts during operation, which directly affect the connected feeding device. The vertically nested connection between the connector 42 and the compensating cylinder 41 effectively isolates these vibrations and impacts, preventing them from being transmitted to the screw conveyor auger and the load cell, thereby further ensuring the weighing accuracy of the feeding device. In specific implementations, when designing the vertically nested connection between the connector 42 and the compensating cylinder 41, it is necessary to ensure that their relative movement is smooth and controllable. This can be achieved by setting guiding devices (such as slide rails, guide grooves, etc.) to ensure that the connector 42 does not deviate from the predetermined trajectory when moving up and down. In some scenarios, the sealing performance between the connector 42 and the compensating cylinder 41 also needs to be considered. Since material may leak from the gap between them, appropriate sealing devices (such as sealing rings, sealing strips, etc.) are needed to prevent material leakage.

[0038] Reference Figure 2 In some embodiments, the diameter of the compensation cylinder 41 is smaller than the diameter of the feed inlet 31. A first flexible annular plate 411 is provided on the outer edge of the feed inlet 31, and the outer periphery of the first flexible annular plate 411 abuts against the inner wall of the compensation cylinder 41.

[0039] Specifically, the first flexible annular plate 411 effectively fills the gap between the inner wall of the compensation cylinder 41 and the outer edge of the feed inlet 31, thereby enhancing the sealing between the two and preventing material leakage from the gap, ensuring the cleanliness of the feeding device and the effective utilization of the material. The first flexible annular plate 411, made of flexible material, also plays a role in buffering and shock absorption. When the material falls from the hopper onto the connector 42 and then enters the screw conveyor, a certain impact force is generated. The first flexible annular plate 411 can absorb and disperse this impact force, preventing the material from being directly transferred to the screw conveyor and the weighing sensor, thereby protecting the stability and accuracy of the feeding device.

[0040] Because the first flexible annular plate 411 has a certain degree of elasticity and plasticity, it can adapt to the slight differences that may exist between the inner wall of the compensation cylinder 41 and the outer edge of the feed inlet 31. This adaptability allows the feeding device to better adapt to the discharge ports of silos of different specifications and shapes, improving its flexibility and versatility. The replacement and maintenance of the first flexible annular plate 411 is relatively simple. When the flexible annular plate wears or is damaged due to prolonged use, it can be easily removed from the feed inlet 31 and replaced with a new flexible annular plate, thereby extending the service life of the feeding device.

[0041] Reference Figure 3 In another alternative embodiment, a second flexible annular piece 412 is provided on the lower inner edge of the compensation cylinder 41, and the inner circumference of the second flexible annular piece 412 abuts against the outer wall of the feed port 31. Figure 3 The illustrated scheme and Figure 2 The illustrated options allow you to choose one or both options simultaneously.

[0042] When both schemes are set simultaneously, the second flexible annular plate 412, together with the first flexible annular plate 411, constitutes a double sealing guarantee. This design further enhances the sealing between the compensation cylinder 41 and the feed port 31, and can almost completely prevent material from leaking out from the gap between them.

[0043] Reference Figure 3 In some preferred embodiments, the diameter of the connector 42 is smaller than the diameter of the compensation cylinder 41. A third flexible annular piece 413 is provided on the outer edge of the lower end of the connector 42, and the outer periphery of the third flexible annular piece 413 abuts against the inner wall of the compensation cylinder 41.

[0044] The third flexible annular plate 413 effectively fills the gap between the connector 42 and the compensation cylinder 41, thereby enhancing their sealing. This prevents material or air from leaking out of the gap. The third flexible annular plate 413, made of soft material, absorbs and disperses the impact force generated when material falls, preventing these impact forces from being directly transmitted to the compensation cylinder 41 and the load cell. This further improves the accuracy and stability of weighing.

[0045] Reference Figure 4 In another alternative embodiment, a fourth flexible annular piece 414 is provided on the upper inner edge of the compensation cylinder 41, and the outer periphery of the fourth flexible annular piece 414 abuts against the outer wall of the connector 42.

[0046] Figure 4 The illustrated scheme and Figure 3 The illustrated options allow you to choose one or both options simultaneously.

[0047] When both schemes are set at the same time, the setting of the third flexible annular piece 413 and the fourth flexible annular piece 414 together constitute a double sealing guarantee.

[0048] The fourth flexible annular piece 414 effectively fills the gap between the inner edge of the upper end of the compensating cylinder 41 and the outer wall of the connector 42, thereby enhancing the sealing performance of this area. It also improves its structural stability and adaptability. The fourth flexible annular piece 414 complements the other flexible annular piece designs mentioned earlier (such as the first, second, and third flexible annular pieces).

[0049] In specific implementation, when selecting the materials for the first soft annular sheet 411, the second soft annular sheet 412, the third soft annular sheet 413, and the fourth soft annular sheet 414, it is necessary to consider their wear resistance, corrosion resistance, and elasticity. Commonly used materials include rubber, silicone, and polyurethane.

[0050] To avoid direct contact between the screw conveyor auger 3 and the granulation equipment, and thus to prevent the granulation equipment from affecting the weighing accuracy of the quantitative feeding device, refer to... Figure 1In an optional embodiment, the granulator quantitative feeding device further includes a second buffer assembly 5 disposed at the discharge port 32 of the screw conveyor 3. The second buffer assembly 5 serves as an isolation layer between the screw conveyor 3 and the granulation equipment, effectively absorbing the vibration or displacement impact generated during the operation of the granulation equipment, reducing interference to the weighing system of the quantitative feeding device caused by material impact, vibration, and other factors. This helps improve the accuracy and stability of weighing, ensuring precise control of the feeding amount. The second buffer assembly 5 can be configured with the same structure as the second buffer assembly 4, for example, having a second compensation cylinder 51 and a second connecting member 52. The second compensation cylinder 51 is fixed on the support frame 1, and the second connecting member 52 is used to connect to the feed port of the granulator.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A granulator dosing device, characterized in that, include: A spiral conveyor auger (3) is supported on a support frame (1) by several weighing sensors (2). A first buffer assembly (4) is disposed at the feed inlet (31) of the screw conveyor (3), the first buffer assembly (4) comprising: A compensating cylinder (41) is rigidly connected to the support frame (1). The compensating cylinder (41) is movably nested and connected to the feed inlet (31) of the screw conveyor (3). A connecting piece (42) for connecting the feed outlet of the hopper is also provided above the compensating cylinder (41).

2. A granulator dosing device according to claim 1, characterised in that The connector (42) is movably nested with the compensation cylinder (41).

3. The quantitative feeding device for a granulator according to claim 1, characterized in that, The diameter of the compensation cylinder (41) is smaller than the diameter of the feed inlet (31).

4. The granulator quantitative feeding device according to claim 3, characterized in that, The outer edge of the feed inlet (31) is provided with a first soft annular plate (411), and the outer periphery of the first soft annular plate (411) abuts against the inner wall of the compensation cylinder (41).

5. The granulator quantitative feeding device according to claim 3, characterized in that, The lower inner edge of the compensation cylinder (41) is provided with a second soft annular piece (412), and the inner circumference of the second soft annular piece (412) abuts against the outer wall of the feed inlet (31).

6. The granulator quantitative feeding device according to claim 1, characterized in that, The diameter of the connector (42) is smaller than the diameter of the compensation cylinder (41).

7. The granulator quantitative feeding device according to claim 6, characterized in that, The lower end of the connector (42) is provided with a third flexible annular piece (413), and the outer periphery of the third flexible annular piece (413) abuts against the inner wall of the compensation cylinder (41).

8. The granulator quantitative feeding device according to claim 6, characterized in that, The upper inner edge of the compensation cylinder (41) is provided with a fourth flexible annular piece (414), and the outer periphery of the fourth flexible annular piece (414) abuts against the outer wall of the connector (42).

9. The granulator quantitative feeding device according to claim 1, characterized in that, Also includes: The second buffer assembly (5) is installed at the discharge port (32) of the screw conveyor (3).

10. The granulator quantitative feeding device according to claim 9, characterized in that, The second buffer assembly (5) includes a second compensation cylinder (51) rigidly connected to the support frame (1), and the second compensation cylinder (51) is movably nested and connected to the discharge port (32) of the screw conveyor (3); a second connector (52) for connecting to the feed port of the granulator is also provided below the second compensation cylinder (51).

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