Feeding device and mixing plant

Abstract

The invention provides a feeding device and a mixing plant. The feeding device comprises a storage hopper, a feeding device and a discharging device, the tank body is located on the lower side of the storage hopper, the tank body is provided with a containing space, the top end of the containing space is provided with an opening, and the opening is right opposite to the discharging opening; one end of the supporting piece is connected with the storage hopper, the other end of the supporting piece extends into the containing space through the opening, the supporting piece is arranged around the discharging opening, and the discharging opening is communicated with the containing space through the supporting piece; the supporting piece is connected with the groove body through the weighing assembly, and the weighing assembly is used for measuring the weight of the storage hopper. Therefore, when the weight of the raw materials flowing out of the discharging opening reaches the target weight, the discharging opening can be directly closed, the weight of the discharged raw materials can be accurately controlled, the weighing error caused by part of falling materials in the air can be eliminated, and the strength and quality of concrete finished products can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of mixing plant technology, specifically to a feeding device and a mixing plant. Background Technology

[0002] In the production process of ready-mixed concrete, the feeding device is the primary link to ensure that various raw materials are accurately and efficiently transported to the mixing host of the batching plant. Its core function is to accurately weigh and deliver different raw materials according to the preset "mix ratio". The weighing accuracy and reliability of the feeding device are the foundation for ensuring the final performance indicators of the concrete.

[0003] In related technologies, a weighing box is used to weigh the raw materials discharged from the storage hopper. Once the weighing box reaches the target weight, the discharge port of the storage hopper is closed. However, even when the discharge port is completely closed, some raw material may still flow out, causing the actual weighed weight to be higher than the target weight. Since the key properties of concrete, such as strength and durability, depend on the precise proportions of various materials, the final strength of the concrete may fail to meet the design standards. Summary of the Invention

[0004] This application provides a feeding device and a mixing plant, which helps to ensure the strength and quality of the finished concrete product.

[0005] In a first aspect, this application provides a feeding device, comprising: a storage hopper having a discharge port at its lower end; a trough located below the storage hopper, the trough having a receiving space, the top of the receiving space having an open opening facing the discharge port; a support member, one end of which is connected to the storage hopper, and the other end extending through the open opening into the receiving space, the support member being arranged around the discharge port, the discharge port communicating with the receiving space via the support member; and a weighing assembly, the support member being connected to the trough via the weighing assembly, the weighing assembly being used to measure the weight of the storage hopper.

[0006] According to the feeding device of this application embodiment, by setting a weighing component to directly measure the weight of the storage hopper, the weight of the raw material flowing out of the discharge port can be obtained in real time. Therefore, when the weight of the raw material flowing out of the discharge port reaches the target weight, the discharge port can be directly closed. This allows for precise control of the weight of the discharged raw material, which helps eliminate weighing errors caused by some material falling in mid-air, thus ensuring the strength and quality of the finished concrete. Simultaneously, by connecting one end of the support member to the storage hopper and extending the other end into the trough's receiving space through the open opening, the raw material flowing out of the discharge port can flow directly into the trough's receiving space under the guidance of the support member. This helps reduce the diffusion of dust during the raw material discharge process, thereby improving the working environment for workers.

[0007] In one possible implementation of the first aspect of this application, the weighing assembly includes a fixing member and a weighing sensor. The fixing member is fixed to the groove and extends from the inner peripheral wall of the receiving space toward the support member. The support member is connected to the fixing member through the weighing sensor.

[0008] In one possible implementation of the first aspect of this application, the weighing assembly further includes a mounting member fixed to the support member, the mounting member extending from the outer peripheral wall of the support member toward the inner peripheral wall of the receiving space, the weighing sensor being mounted on the end of the fixed member near the storage hopper, and the mounting member being connected to the end of the weighing sensor away from the fixed member.

[0009] In one possible implementation of the first aspect of this application, the feeding device further includes a driving assembly disposed within the support member. The driving assembly includes a fixed base, a driving member, and a baffle. The fixed base is connected to the support member, and the driving member is connected to the fixed base and is used to drive the baffle to move between a closed position (closing the discharge port) and an open position (opening the discharge port).

[0010] In one possible implementation of the first aspect of this application, the drive assembly further includes a plurality of fixing posts, which are spaced apart in the circumferential direction of the fixing base. One end of each fixing post is connected to the support member, and the other end is connected to the fixing base.

[0011] In one possible implementation of the first aspect of this application, the drive assembly further includes a dust cover, the two ends of which are respectively connected to the fixed base and the baffle. The dust cover, the fixed base, and the baffle enclose a dustproof space, and the drive component is located within the dustproof space.

[0012] In one possible implementation of the first aspect of this application, the feeding device further includes a guide member located within the accommodating space. The guide member has a guiding channel, which has a guiding inlet and a guiding outlet in the direction from the storage hopper to the trough. A portion of the support member passes through the guiding inlet.

[0013] In one possible implementation of the first aspect of this application, the cross-sectional area of ​​the material guiding channel gradually decreases in the direction from the storage hopper to the tank; and / or, a filter element is provided at the material guiding outlet.

[0014] In one possible implementation of the first aspect of this application, the feeding device further includes a first conveyor belt located on the side of the guide member away from the support member. The opposite side walls of the trough are respectively provided with a first through hole and a second through hole communicating with the receiving space. The first conveyor belt passes through the first through hole and the second through hole. The orthographic projection of the guide outlet on the plane where the first conveyor belt is located is within the outline of the first conveyor belt.

[0015] Secondly, this application provides a mixing plant, which includes the above-mentioned feeding device.

[0016] The technical effects of the second aspect of this application can be referred to the technical effects of the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a feeding device provided in some embodiments of this application.

[0018] Figure 2 for Figure 1 The enlarged view circled at point A in the middle.

[0019] Figure 3 A cross-sectional view of a feeding device provided in some embodiments of this application.

[0020] Figure label: 100. Feeding device; 1. Storage hopper; 11. First section; 12. Second section; 121. Discharge port; 2. Tank body; 21. Receiving space; 22. Opening; 23. First through hole; 24. Second through hole; 3. Support components; 4. Weighing components; 41. Fixtures; 42. Weighing sensors; 43. Mounting components; 5. Drive assembly; 51. Mounting base; 52. Drive component; 53. Baffle; 54. Dust cover; 6. Material guide component; 61. Material guide channel; 62. Material guide inlet; 63. Material guide outlet; 64. Filter component; 7. First conveyor belt; 8. Second conveyor belt. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0022] In this application, the accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0023] Unless otherwise stated, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. The singular forms "a," "the," and "the" as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In the description of this application, "several" means one or more, unless otherwise explicitly specified.

[0025] In the description of this application, the terms "center", "thickness", "height", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0026] In the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In the description of this application, unless otherwise expressly defined, the terms "above," "over," "on top of," "below," "below," "under," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "below," and "over" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0028] Ready-mixed concrete, also known as commercial concrete, refers to modern concrete materials produced by mixing cement, aggregates, water, and admixtures in a specially designed batching plant according to precise proportions, and then transporting them to the site for use. Its production quality directly affects the structural safety and service life of building projects. In the production process of ready-mixed concrete, the feeding device is the primary link ensuring that various raw materials are accurately and efficiently delivered to the mixing host in the batching plant. Its core function is to accurately weigh and deliver different raw materials according to the preset "mix ratio." The weighing accuracy and reliability of the feeding device are fundamental to ensuring the final performance indicators of the concrete.

[0029] In related technologies, a weighing box is used to weigh the raw materials discharged from the storage hopper. Once the weighing box reaches the target weight, the discharge port of the storage hopper is closed. However, even when the discharge port is completely closed, some raw material may still flow out, causing the actual weighed weight to be higher than the target weight. Since the key properties of concrete, such as strength and durability, depend on the precise proportions of various materials, the final strength of the concrete may fail to meet the design standards.

[0030] To solve the above-mentioned technical problems, this application provides a feeding device and a mixing plant.

[0031] The mixing plant provided in this application may include a feeding device and a mixing body. The feeding device can transport raw materials to the mixing body.

[0032] Please see Figures 1-3 The feeding device 100 provided in this application is applied to a mixing plant. The feeding device 100 may include a storage hopper 1, a tank 2, a support 3, and a weighing component 4.

[0033] The storage hopper 1 may have a storage cavity for storing raw materials. The lower end of the storage hopper 1 may have a discharge port 121. Thus, the raw materials in the storage cavity can be discharged from the storage cavity through the discharge port 121.

[0034] The trough 2 can be located on the lower side of the storage hopper 1. Here, "lower side" means that the trough 2 is located on the side of the storage hopper 1 with the discharge port 121.

[0035] The tank 2 may have a receiving space 21. The top of the receiving space 21 has an opening 22, which is directly opposite the discharge port 121. Specifically, the orthographic projection of the discharge port 121 onto the plane containing the opening 22 overlaps with the opening 22.

[0036] For example, a spray device may be installed on the top of the tank 2, which helps to reduce dust generated during operation.

[0037] One end of the support member 3 is connected to the storage hopper 1, and the other end extends into the receiving space 21 through the open opening 22. The support member 3 is arranged around the discharge port 121, which is connected to the receiving space 21 via the support member 3. Thus, the raw material flowing out of the discharge port 121 can first flow into the support member 3, and then flow from the support member 3 into the receiving space 21 of the tank body 2, thereby helping to reduce the diffusion of dust during the raw material discharge process.

[0038] For example, the support member 3 can be formed into a circular cylinder, a rectangular cylinder, a triangular cylinder, etc., and this application does not limit it.

[0039] For example, the storage hopper 1 may include a first section 11 and a second section 12 connected in sequence. The cross-sectional area of ​​the second section 12 may gradually decrease in the direction from the storage hopper 1 to the tank 2. A discharge port 121 is provided on the second section 12. A support member 3 is connected to the outer peripheral wall of the second section 12. This allows for a reduction in the volume of the support member 3, thereby helping to lower the manufacturing cost of the feeding device 100.

[0040] The support component 3 is connected to the tank 2 via a weighing assembly 4, which is used to measure the weight of the storage hopper 1. Thus, the weight of the raw material in the storage hopper 1 can be measured in real time via the weighing assembly.

[0041] For example, the feeding device 100 may also include a controller. The controller can receive the weight of the storage hopper 1 measured by the weighing component 4. The controller can process the weights of multiple sets of storage hoppers 1 measured by the weighing component 4 to calculate the actual weight of the raw material discharged from the storage hopper 1. This helps to improve the intelligence level of the feeding device 100.

[0042] According to the feeding device 100 of this application embodiment, by setting a weighing component 4 to directly measure the weight of the storage hopper 1, the weight of the raw material flowing out of the discharge port 121 can be obtained in real time when the raw material flows out of the discharge port 121. Therefore, when the weight of the raw material flowing out of the discharge port 121 reaches the target weight, the discharge port 121 can be directly closed, thus enabling precise control of the weight of the discharged raw material. This helps to eliminate weighing errors caused by some material falling in the air, thereby ensuring the strength and quality of the finished concrete. At the same time, by connecting one end of the support member 3 to the storage hopper 1 and extending the other end into the receiving space 21 of the tank body 2 through the open opening 22, the raw material flowing out of the discharge port 121 can flow directly into the receiving space 21 of the tank body 2 under the guidance of the support member 3. This helps to reduce the diffusion of dust during the raw material discharge process, thereby improving the working environment for workers.

[0043] Please continue reading. Figure 1 In some embodiments, the weighing assembly 4 may include a fixing member 41 and a weighing sensor 42. The fixing member 41 is fixed to the tank 2 and extends from the inner peripheral wall of the receiving space 21 toward the support member 3. Thus, by providing the fixing member 41, the gap between the support member 3 and the inner peripheral wall of the receiving space 21 can be reduced, thereby further reducing the diffusion of dust.

[0044] The support member 3 is connected to the fixing member 41 via the weighing sensor 42. This facilitates the installation of the weighing sensor 42, and the weighing sensor 42 can measure the weight of the raw material flowing out of the discharge port 121.

[0045] For example, the load cell 42 can be a pull load cell, a compression load cell, a spoke load cell, etc.

[0046] For example, there can be multiple fasteners 41, and the multiple fasteners 41 can be spaced apart in the circumferential direction of the support member 3. This arrangement helps to reduce the manufacturing cost of the feeding device 100.

[0047] Please continue reading. Figure 1In some embodiments, the weighing assembly 4 may further include a mounting member 43. The mounting member 43 is fixed to the support member 3. The mounting member 43 extends from the outer peripheral wall of the support member 3 toward the inner peripheral wall of the receiving space 21. The load cell 42 is mounted on the end of the fixing member 41 near the storage hopper 1, and the mounting member 43 is connected to the end of the load cell 42 away from the fixing member 41. Thus, when assembling the feeding device 100, the mounting member 43 can be directly fixed to the load cell 42, thereby reducing the assembly difficulty of the feeding device 100.

[0048] For example, there can be multiple load cells 42, which can be spaced apart in the circumferential direction of the support member 3. The multiple load cells 42 can be connected to a multi-channel junction box, and the output of the junction box can be connected to a controller. This improves measurement accuracy, thereby helping to ensure the strength and quality of the finished concrete product.

[0049] For example, the mounting member 43 and the support member 3 can be detachably connected. For instance, a detachable connection can be achieved through snap-fit, magnetic attraction, fasteners, etc. This facilitates maintenance of the feeding device 100, thereby reducing its maintenance costs. It also facilitates compatibility with support members 3 of different sizes, thus improving versatility.

[0050] Please see Figure 1 and Figure 2 In some embodiments, the feeding device 100 may further include a drive assembly 5. The drive assembly 5 is disposed within the support member 3. This protects the drive assembly 5, thereby improving its service life.

[0051] The drive assembly 5 may include a fixed base 51, a drive member 52, and a baffle 53. The fixed base 51 is connected to the support member 3, and the drive member 52 is connected to the fixed base 51 and is used to drive the baffle 53 to move between the closed position of the discharge port 121 and the open position of the discharge port 121. Thus, by driving the drive member 52, the baffle 53 can easily open or close the discharge port 121. The structure is simple, which helps to reduce the manufacturing cost of the feeding device 100.

[0052] For example, the end of the baffle 53 facing the storage hopper 1 can be formed as an arc-shaped surface. This can prevent the falling raw materials from accumulating on the top of the baffle 53.

[0053] The material of the baffle 53 may include wear-resistant cast iron. This helps to improve the service life of the baffle 53.

[0054] For example, the drive unit 52 can be electrically connected to the controller. When the weight of the raw material discharged from the storage hopper 1 reaches a preset weight, the drive unit 52 can be controlled to drive the baffle 53 to move towards the closed position of the discharge port 121. When the baffle 53 moves to the closed position, the drive unit 52 stops driving.

[0055] For example, the orthographic projection of the fixing seat 51 onto the plane of the baffle 53 is located within the outer contour of the baffle 53. This helps to reduce the possibility of raw materials falling onto the fixing seat 51.

[0056] Please continue reading. Figure 1 and Figure 2 In some embodiments, the drive assembly 5 may further include multiple fixing posts. These fixing posts are spaced apart circumferentially on the fixing base 51, with one end connected to the support member 3 and the other end connected to the fixing base 51. Specifically, the raw material flowing from the discharge port 121 can flow through the gaps between the fixing posts into the receiving space 21. Thus, fixing the fixing base 51 can be achieved without affecting the discharge of the raw material, thereby improving the reliability of the unloading of the feeding device 100.

[0057] Please continue reading. Figure 1 and Figure 2 In some embodiments, the drive assembly 5 further includes a dust cover 54, with its two ends connected to the fixed base 51 and the baffle 53, respectively. The dust cover 54, the fixed base 51, and the baffle 53 enclose a dustproof space, within which the drive component 52 is located. Thus, by providing the dust cover 54, raw materials can be prevented from falling onto the fixed base 51, and dust can be prevented from entering the drive component 52. Furthermore, the dust cover 54 can extend and retract with the movement of the baffle 53, thus avoiding interference with the movement of the baffle 53.

[0058] For example, the drive unit 52 can be an electric push rod, a gear rack, or other drive device that can realize linear reciprocating motion.

[0059] Please see Figure 1 and Figure 3 In some embodiments, the feeding device 100 may further include a guide member 6. The guide member 6 may be located within the receiving space 21. The guide member 6 has a guiding channel 61, which has a guiding inlet 62 and a guiding outlet 63 in the direction from the storage hopper 1 to the tank 2. A portion of the support member 3 passes through the guiding inlet 62. Thus, raw material flowing out of the support member 3 can flow directly into the guiding channel 61 from the guiding inlet and then out from the guiding outlet. The guiding effect of the guide member 6 facilitates the discharge of raw material, thereby improving the reliability of the unloading of the feeding device 100.

[0060] Please continue reading. Figure 1In some embodiments, the cross-sectional area of ​​the guide channel 61 gradually decreases in the direction from the storage hopper 1 to the tank 2. This arrangement facilitates the discharge of raw materials from the guide member 6.

[0061] Please continue reading. Figure 1 In some embodiments, a filter element 64 is provided at the material outlet 63. Therefore, by providing the filter element 64, the impact of the falling raw material can be effectively mitigated, preventing spillage and dust generation during unloading. This not only reduces errors caused by material spillage but also improves the working environment, thereby enhancing the accuracy and cleanliness of the feeding process.

[0062] For example, the filter element 64 is detachably connected to the feed guide 6. This facilitates the replacement and maintenance of the filter element 64. The filter element 64 can be removed from the outer peripheral wall of the feed guide 6, thus facilitating disassembly and cleaning.

[0063] Please continue reading. Figure 1 In some embodiments, the feeding device 100 may further include a first conveyor belt 7. The first conveyor belt 7 is located on the side of the guide member 6 away from the support member 3. Thus, the raw material flowing out from the guide outlet 63 can fall onto the first conveyor belt 7 and be transported to the mixing host of the mixing plant by the transmission of the first conveyor belt 7.

[0064] The two opposite side walls of the tank 2 are respectively provided with a first through hole 23 and a second through hole 24 communicating with the receiving space 21. The first conveyor belt 7 passes through the first through hole 23 and the second through hole 24. This arrangement helps to reduce the diffusion of dust during the unloading of raw materials.

[0065] The orthographic projection of the material outlet 63 onto the plane of the first conveyor belt 7 lies within the outline of the first conveyor belt 7. This helps to reduce the occurrence of raw materials falling outside the first conveyor belt 7.

[0066] For example, the distance between the feed outlet 63 and the first conveyor belt 7 can be less than the width of the first conveyor belt 7. This arrangement can further reduce the occurrence of raw materials falling outside the first conveyor belt 7.

[0067] For example, there can be multiple storage hoppers 1. Thus, it is possible to increase the storage capacity of a single raw material by storing the same type of raw material, and to achieve the pre-mixing of various raw materials by storing different raw materials.

[0068] For example, the feeding device 100 may further include a second conveyor belt 8. The second conveyor belt 8 may be inclined. The raw materials on the first conveyor belt 7 can be transported to the second conveyor belt 8, and then transported by the second conveyor belt 8 to the transition hopper above the mixing host of the mixing plant for temporary storage. The second conveyor belt 8 may adopt a semi-enclosed inclined design, which is dustproof and waterproof, and can automatically adjust its deviation. The second conveyor belt 8 has maintenance walkways on both sides for easy belt maintenance, and is equipped with an emergency stop pull-line switch to ensure convenient and safe maintenance. A tensioning device is provided in the middle to ensure sufficient tension and prevent belt slippage, and a scraper is provided at the top to keep the belt clean.

[0069] It is understood that in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0070] It is understood that the various implementation methods described in this application can be implemented individually or in combination, and the embodiments of this application are not limited in this respect.

[0071] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the aforementioned method implementations, and will not be repeated here.

[0072] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A feeding device (100), characterized in that, Applied to a mixing plant, the feeding device (100) includes: Storage hopper (1), the lower end of which has a discharge port (121); The trough (2) is located below the storage hopper (1). The trough (2) has a receiving space (21). The top of the receiving space (21) has an open opening (22). The open opening (22) is directly opposite the discharge port (121). A support member (3) is provided, one end of which is connected to the storage hopper (1), and the other end extends into the receiving space (21) through the opening (22). The support member (3) is arranged around the discharge port (121), and the discharge port (121) is connected to the receiving space (21) through the support member (3). Weighing component (4), the support member (3) is connected to the tank (2) through the weighing component (4), the weighing component (4) is used to measure the weight of the storage hopper (1).

2. The feeding device (100) according to claim 1, characterized in that, The weighing assembly (4) includes a fixing member (41) and a weighing sensor (42). The fixing member (41) is fixed to the groove (2). The fixing member (41) extends from the inner peripheral wall of the accommodating space (21) toward the support member (3). The support member (3) is connected to the fixing member (41) through the weighing sensor (42).

3. The feeding device (100) according to claim 2, characterized in that, The weighing assembly (4) further includes a mounting member (43), which is fixed to the support member (3). The mounting member (43) extends from the outer peripheral wall of the support member (3) toward the inner peripheral wall of the receiving space (21). The weighing sensor (42) is mounted on the end of the fixing member (41) near the storage hopper (1). The mounting member (43) is connected to the end of the weighing sensor (42) away from the fixing member (41).

4. The feeding device (100) according to claim 1, characterized in that, The feeding device (100) further includes a drive assembly (5), which is disposed within the support member (3). The drive assembly (5) includes a fixed base (51), a drive member (52), and a baffle (53). The fixed base (51) is connected to the support member (3), and the drive member (52) is connected to the fixed base (51) and is used to drive the baffle (53) to move between the closed position of closing the discharge port (121) and the open position of opening the discharge port (121).

5. The feeding device (100) according to claim 4, characterized in that, The drive assembly (5) also includes a plurality of fixed posts, which are spaced apart in the circumferential direction of the fixed base (51). One end of each fixed post is connected to the support member (3), and the other end is connected to the fixed base (51).

6. The feeding device (100) according to claim 4, characterized in that, The drive assembly (5) also includes a dust cover (54), the two ends of which are connected to the fixed base (51) and the baffle (53) respectively. The dust cover (54), the fixed base (51) and the baffle (53) enclose a dustproof space, and the drive component (52) is located in the dustproof space.

7. The feeding device (100) according to claim 1, characterized in that, The feeding device (100) further includes a guide (6), which is located in the accommodating space (21). The guide (6) has a guide channel (61) in the direction from the storage hopper (1) to the trough (2). The guide channel (61) has a guide inlet (62) and a guide outlet (63). A portion of the support member (3) passes through the guide inlet (62).

8. The feeding device (100) according to claim 7, characterized in that, In the direction from the storage hopper (1) to the tank (2), the cross-sectional area of ​​the material guiding channel (61) gradually decreases; and / or, A filter element (64) is provided at the feed outlet (63).

9. The feeding device (100) according to claim 7, characterized in that, The feeding device (100) further includes a first conveyor belt (7), which is located on the side of the guide member (6) away from the support member (3). The opposite side walls of the trough (2) are respectively provided with a first through hole (23) and a second through hole (24) communicating with the accommodating space (21). The first conveyor belt (7) passes through the first through hole (23) and the second through hole (24). The orthographic projection of the guide outlet (63) on the plane where the first conveyor belt (7) is located is within the outline of the first conveyor belt (7).

10. A mixing plant, characterized in that, The mixing plant includes the feeding device (100) according to any one of claims 1-9.

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