An adjustable direction belt feeder

Abstract

The utility model belongs to material conveying technical field especially relates to a adjustable direction belt feeder. Including setting up the motorized pedestal of walking system, still include: the feeding module is set up on motorized pedestal, and the feeding module includes the bin body for loading material, and the bin body inside is provided with the primary sorting mechanism, the bottom opening of bin body is connected with the axial forced feeding mechanism, and the export below of axial forced feeding mechanism is provided with the first belt conveyor. Adjustable direction telescopic conveying module, including the bearing slide frame of sliding connection through linear drive part with motorized pedestal, and the second telescopic belt conveyor of pitch adjusting mechanism installation on bearing slide frame. The discharge end of first belt conveyor corresponds to the material receiving end of second telescopic belt conveyor. The utility model fills up the material conveying blank during the main coal conveying system failure, and it can be used as the reliable backup of main coal conveying system, realizes the quick deployment, accurately to the bin, stable feeding when the failure occurs.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and in particular relates to an adjustable belt feeder. Background Technology

[0002] In coal-fired power plants such as thermal power plants, a stable and continuous supply of coal is the lifeline for ensuring the safe and economical operation of generating units and heating systems. The in-plant coal conveying system is a crucial link between the coal yard and the boiler combustion system, and its reliability directly affects the overall production efficiency of the power plant. Currently, coal-fired power plants typically use fixed conveyor belts, coal feeders, and other equipment to form the main conveying line, lacking flexibility.

[0003] In actual production, the main coal conveying system may suddenly shut down due to equipment aging, unexpected blockages, belt tears, or unplanned maintenance. Once the main system fails, the company faces a serious situation where coal cannot be delivered to the boiler coal bunker in a timely manner, easily leading to reduced unit load or even unplanned shutdown. This not only causes significant power generation losses but also affects the stability of heating supply. To address such risks, companies need to equip themselves with effective emergency feeding and conveying solutions.

[0004] Existing emergency response plans largely rely on the temporary deployment of mobile conveyor belts or forklifts for manual material loading. These methods have significant limitations: mobile conveyor belts are often single-function, capable only of short-distance horizontal conveying, and cannot directly lift materials to the tall boiler coal bunker inlet; moreover, they lack screening and feeding processes, and impurities or large pieces of coal in the raw coal can easily cause blockages in subsequent equipment. Using forklifts results in low operational efficiency, severe dust pollution, a harsh working environment, and safety hazards. These temporary measures are slow to respond, inefficient, and unreliable, failing to meet the high standards of production continuity and reliability required by modern thermal power plants. Summary of the Invention

[0005] This utility model addresses the shortcomings of existing technologies by providing an adjustable belt feeder. To achieve the above objective, this utility model adopts the following technical solution: an adjustable belt feeder, including a motorized base equipped with a walking system, and further comprising: The feeding module is mounted on the motorized base. The feeding module includes a bin for holding materials. A primary sorting mechanism is provided inside the bin. An axial forced feeding mechanism is connected to the bottom opening of the bin. A primary belt conveyor is provided below the outlet of the axial forced feeding mechanism.

[0006] An adjustable telescopic conveyor module includes a load-bearing carriage slidably connected to the motorized base via a linear drive unit, and a secondary telescopic belt conveyor mounted on the load-bearing carriage via a pitch adjustment mechanism; wherein the pitch adjustment mechanism includes a hinge shaft and an angle control drive unit, and the pitch adjustment mechanism is used to drive the secondary telescopic belt conveyor to rotate around the hinge shaft to adjust the tilt angle.

[0007] The discharge end of the primary belt conveyor corresponds to the receiving end of the secondary telescopic belt conveyor, and is used to supply material to the secondary telescopic belt conveyor.

[0008] Furthermore, the primary sorting mechanism employs a grid plate arranged inside the bin, and an inclined material sliding channel is formed inside the bin; the lower part of the grid plate is configured as an inclined portion that bends towards the material sliding channel to reduce the included angle between the grid plate and the material sliding channel.

[0009] Furthermore, the axial forced feeding mechanism includes a spiral conveying shaft driven by a drive unit and a conveying cavity for accommodating the spiral conveying shaft. The inlet of the conveying cavity is connected to the bottom opening of the hopper, and the outlet of the conveying cavity is located above the receiving surface of the primary belt conveyor.

[0010] Furthermore, the motorized base includes a rectangular frame structure; a guide rail is provided on the inner bottom plate of the rectangular frame structure, and a rolling support assembly that cooperates with the guide rail is provided at the bottom of the load-bearing carriage; the rolling support assembly travels within the guide rail; the fixed end of the linear drive unit is connected to the motorized base, and the output end of the linear drive unit is connected to the load-bearing carriage. In one embodiment, a cover plate is installed on the rectangular frame, so that the left and right sides of the motorized base are closed, while the front and rear ends of the rectangular frame are open, preventing mechanical interference between structural components, such as not hindering the deployment of the secondary telescopic belt conveyor.

[0011] Furthermore, the guide rail is provided with anti-tipping limiting structures on both sides to constrain the lateral displacement of the carriage.

[0012] Furthermore, the angle control drive unit adopts an angle control cylinder, the cylinder body of which is hinged to the upper surface of the bearing slide, and the piston rod of which is hinged to the frame of the secondary telescopic belt conveyor through a linkage.

[0013] Furthermore, the cargo compartment is supported by pivots on both sides on a support base fixedly mounted on top of the motorized base.

[0014] Furthermore, the bottom of the hopper is supported by elastic support columns, and the top of the elastic support columns is provided with a buffer pad.

[0015] Furthermore, the walking system includes wheels disposed at the bottom of the motorized base and a traction connector for towing and feeding devices disposed at the front end of the motorized base.

[0016] Furthermore, a material fluidizer is installed at the bottom of the silo.

[0017] Compared with the prior art, this utility model has the following advantages.

[0018] This utility model is a highly reliable emergency feeding device integrating adjustable conveying in thermal power plants, designed to fill the material conveying gap during main coal conveying system failures and serve as a safety net for thermal power plant production. It can act as a reliable backup for the main coal conveying system, enabling rapid deployment, accurate silo alignment, and stable feeding in the event of a failure, thereby effectively avoiding unit outages and heating risks caused by coal combustion interruptions. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0020] Figure 1 An example of an adjustable belt feeder with overall 3D view Figure 1 .

[0021] Figure 2 An example of an adjustable belt feeder with overall 3D view Figure 2 .

[0022] Figure 3 The front view of the adjustable belt feeder in the embodiment (without the outer cover side plate).

[0023] Figure 4 The right view of the adjustable belt feeder is shown in the example.

[0024] Figure 5 The three-dimensional view of the adjustable belt feeder with the outer cover removed is shown in the example.

[0025] Figure 6 A 3D view of the adjustable belt feeder in operation, as shown in the embodiment. Figure 1 .

[0026] Figure 7 A 3D view of the adjustable belt feeder in operation, as shown in the embodiment. Figure 2 .

[0027] Figure 8 for Figure 2 A magnified view of a portion at point A.

[0028] Figure 9 for Figure 6 A magnified view of a portion at point B.

[0029] In the diagram, 1 is the moving unit; 2 is the feeding module; and 3 is the telescopic belt unit. 101. Motorized base; 102. Traction connector; 103. Wheels; 104. Floor plate; 201. Silo body; 202. Grating plate; 203. Inlet; 204. Buffer pad; 205. Elastic support column; 206. Support base; 207. Pivot; 208. Bottom opening; 209. Drive unit; 210. Conveying chamber screw pusher motor; 211. Outlet; 212. Screw conveyor shaft; 213. Primary belt conveyor; 214. Material fluidizer; 20201, Inclined section; 20301, Material sliding channel; 301. Telescopic belt; 302. Angle control drive unit; 303. Load-bearing carriage; 304. Hinge seat; 305. Linear drive unit; 306. Linkage component; 307. Anti-rollover limiting structure; 308. Guide rail; 309. Rolling support assembly. Detailed Implementation

[0030] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0031] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0032] Depending on the context, words such as “if” or “suppose” used here can be interpreted as “when”, “in response to determination”, or “in response to detection”.

[0033] For ease of understanding, the embodiments of this disclosure will be described in detail first.

[0034] like Figure 1-9 As shown in the embodiment, the adjustable belt feeder includes a motorized base 101 equipped with a walking system, a feeding module, and an adjustable telescopic conveyor module. The walking system and the motorized base 101 constitute a mobile unit 1, and the feeding module is mounted on the motorized base 101. The feeding module includes a bin 201 for holding materials. A primary sorting mechanism is provided inside the bin 201. The bottom opening 208 of the bin 201 is connected to an axial forced feeding mechanism. A primary belt conveyor 213 is provided below the outlet of the axial forced feeding mechanism.

[0035] The adjustable telescopic conveyor module includes a support carriage 303 slidably connected to the motorized base 101 via a linear drive unit 305, and a secondary telescopic belt conveyor 301 mounted on the support carriage 303 via a pitch adjustment mechanism. The pitch adjustment mechanism includes a hinge shaft and an angle control drive unit 302, which drives the secondary telescopic belt conveyor 301 to rotate around the hinge shaft to adjust the tilt angle. Furthermore, the discharge end of the primary belt conveyor 213 corresponds to the receiving end of the secondary telescopic belt conveyor 301, and is used to feed material to the secondary telescopic belt conveyor 301.

[0036] Preferably, the primary sorting mechanism uses a grid plate 202 arranged inside the bin body 201, and an inclined material sliding channel 20301 is formed inside the bin body 201; the lower part of the grid plate 202 is configured as an inclined part 20201 that bends towards the material sliding channel to reduce the angle between the grid plate 202 and the material sliding channel 20301.

[0037] As one possible embodiment, the silo can be in the form of a hopper. The silo inlet 203 has a slope structure with a certain inclination angle, forming a material sliding channel. This material sliding channel is connected to the bottom opening 208, and a grating plate is set on the material sliding channel 20301. The grating plate 202 has a vertical upper part and an inclined lower part 20201, and both sides are detachably connected to the silo. The inclined portion significantly reduces the angle between the lower edge of the grating plate 202 and the material sliding channel 20301. Reducing the angle improves the impact mode of the material on the lower part of the grating plate 202, changing it from a frontal impact to a more easily dissipated shear force, which is beneficial to structural durability.

[0038] Preferably, the axial forced feeding mechanism includes a screw conveyor shaft 212 driven by a drive unit 209 and a conveying cavity 210 for accommodating the screw conveyor shaft 212. The inlet of the conveying cavity 210 is connected to the bottom opening 208 of the hopper 201, and the outlet 211 of the conveying cavity 210 is located above the receiving surface of the primary belt conveyor 213.

[0039] As another possible embodiment, the drive unit 209 can be a screw pusher motor, which and the conveying chamber 210 are mounted on the side wall of the motorized base 101. The screw pusher motor drives the screw conveyor shaft 212 to rotate to achieve material feeding. The conveying chamber 210 is a cavity structure covering the screw conveyor shaft 212, and the screw conveyor shaft 212 can rotate freely relative to the conveying chamber 210; the outlet 211 of the conveying chamber 210 is located above the receiving surface of the primary belt conveyor 213.

[0040] Preferably, the motorized base 101 is a rectangular frame structure; a guide rail 308 is provided on the inner bottom plate 104 of the rectangular frame structure, and a rolling support assembly 309 that cooperates with the guide rail 308 is provided at the bottom of the load-bearing carriage 303; the rolling support assembly 309 travels within the guide rail 308; the fixed end of the linear drive unit 305 is connected to the motorized base 101, and the output end of the linear drive unit 305 is connected to the load-bearing carriage 303.

[0041] As another possible embodiment, the motorized base 101 adopts a rectangular frame structure, welded from structural steel, which has high structural strength and stability, providing a solid support foundation for the entire device. Two guide rails 308 are arranged in parallel on its internal base plate. Rolling support assemblies 309 are provided on both sides of the bottom of the load-bearing carriage 303.

[0042] In this embodiment, the rolling support assembly 309 is preferably a traveling wheel. The traveling wheel is mounted on the bottom of the support carriage 303 via an axle and a bearing seat, and cooperates with the guide rail 308, so that the support carriage 303 can reciprocate on the guide rail 308 with low friction via the traveling wheel. Moreover, the linear drive unit 305 is preferably a sliding plate moving cylinder. The cylinder seat of the sliding plate moving cylinder is fixed to the motor base 101 by a pin hinge or flange, and the end of the cylinder rod of the sliding plate moving cylinder is connected to the front or rear end of the support carriage 303 by a pin. During operation, the cylinder rod of the sliding plate moving cylinder extends or retracts, thereby driving the support carriage 303 connected to it and the entire adjustable telescopic conveying module on it to slide smoothly along the guide rail 308 via the traveling wheel, realizing the switching between the transport position (retracted) and the working position (extended).

[0043] Furthermore, the linear drive unit 305 is not limited to the form of a hydraulic cylinder. In other embodiments, linear drive devices such as electric push rods, ball screw modules, or chain and sprocket mechanisms can also be used to achieve the same function. Similarly, the rolling support assembly 309 is not limited to a traveling wheel, but can also be a slider, ball linear guide, or other components capable of linear guidance and support functions.

[0044] Preferably, the guide rail 308 is provided with anti-rollover limiting structures 307 on both sides to constrain the lateral displacement of the carriage 303.

[0045] As another possible embodiment, to further ensure the stability of the load-bearing slide 303 during its telescopic movement and prevent lateral tipping, this embodiment employs a sliding plate structure for the load-bearing slide, and a Z-shaped limiting plate 307 is used for the anti-tipping limiting structure. Specifically, the Z-shaped limiting plate 307 is fixedly installed on both sides of the guide rail 308 by fasteners. Its hook-shaped structure, formed by bending, constrains the load-bearing slide 303 and its rolling support assembly 309 from the side and above, respectively, thereby effectively limiting the lateral displacement and upward jumping tendency of the load-bearing slide 303, i.e., the sliding plate. The structure is simple and the limiting is reliable. It is understood that the anti-tipping limiting structure is not limited to the Z-shaped limiting plate form described in this embodiment. Any structure that can achieve the same or similar limiting function, such as an L-shaped limiting block, should be included within the protection scope of this patent.

[0046] Preferably, the angle control drive unit 302 adopts an angle control cylinder, the cylinder body of which is hinged to the upper surface of the support slide 303, and the piston rod of the angle control cylinder is hinged to the frame of the secondary telescopic belt conveyor 301 through a linkage 306. Specifically, the linkage 306 can be a connecting plate.

[0047] Preferably, the cargo box 201 is supported by pivots 207 on both sides on a support base 206 fixedly mounted on top of the motorized base 101. The bottom of the cargo box 201 is further supported by an elastic support column 205, and the top of the elastic support column 205 is provided with a buffer pad 204.

[0048] In another possible embodiment, the silo body 201 is supported by pivots 207 on both sides on a support base 206 fixedly mounted on top of the motorized base 101, thus forming the main load-bearing and rotation fulcrum of the silo body 201. To further enhance the stability of the silo body 201 during operation and effectively buffer the impact of internal materials and the vibration generated by the screw conveyor mechanism, at least one set of elastic support components is provided at the bottom of the silo body 201, on the side away from the support base 206.

[0049] The bottom of the elastic support column is fixed to the top of the motor base, and the top of the elastic support column is supported by a buffer pad on the side of the compartment 201 away from the support base. The buffer pad 204 is made of a non-metallic material with high elasticity and high damping, such as rubber, and is fixed to the mounting surface at the top of the elastic support column 205 by means of adhesive or slots.

[0050] A flat support surface is provided at the bottom of the hopper 201. After installation, the upper surface of the buffer pad 204 directly contacts the support surface at the bottom of the hopper 201 and provides support, but the two are not fixedly connected. This elastic support assembly provides the hopper 201 with a second important support point besides the pivot support point, and together with the support base 206, it forms a stable three-point support structure, effectively preventing the hopper 201 from swaying or overturning due to off-center loading or equipment movement, and ensuring the overall rigidity of the structure.

[0051] Preferably, the walking system includes wheels 103 disposed at the bottom of the motorized base and a traction connector 102 for towing and feeding devices disposed at the front end of the motorized base.

[0052] As another possible embodiment, the traction connector 102, as a preferred connection method, can adopt the conventional and standardized tow hook form in the art and be fixedly installed at the front end (or rear end) of the motor base 101 to facilitate quick connection with the towing vehicle and realize flexible relocation of the entire device.

[0053] Preferably, a material fluidizer 214 is installed at the bottom of the silo body 201.

[0054] As another possible embodiment, to promote the flow of materials within the silo, especially those with high humidity or that are prone to adhesion, and to prevent arching or blockage at the bottom of the silo and the discharge port, a preferred and common implementation of the material fluidizer 214 is a vibrating motor, also known in the industry as a vibrating feeder. It is fixedly installed on the outer side of the conical wall at the lower part of the silo 201 by high-strength bolts. The periodic high-frequency vibrations it generates can be effectively transmitted to the material, breaking down the static friction between them, making the material tend towards a fluid state, thereby ensuring smooth and uniform discharge.

[0055] Another possible embodiment is that a hopper is installed on top of the motorized base. The hopper is in the shape of an inverted horn. A grid plate is fixed between the inlet and the bottom opening inside the hopper. The bottom opening is connected to the conveying chamber. A screw conveyor shaft is installed inside the bolt-driven hopper. One end of the screw conveyor shaft is connected to a drive unit. An outlet is provided on the conveying chamber at the other end of the screw conveyor shaft.

[0056] Specifically, the device in this embodiment can be quickly towed by a tractor to a designated location near the fault point. Its unique hydraulic system drives the extension of the load-bearing slide and precisely adjusts the angle and length of the telescopic conveyor belt, allowing its discharge end to be flexibly positioned in three spatial dimensions, ultimately aligning precisely with the feed inlet of the boiler's raw coal bunker. The grating integrated into the bunker effectively removes impurities and large, oversized coal pieces, ensuring the quality of the coal entering the furnace; the spiral feeding mechanism ensures uniform and controllable feeding; and the vibrating fluidization device effectively eliminates the clogging problem caused by wet, sticky coal, ensuring smooth material flow. The entire system design fully considers the actual needs of thermal power production, not only greatly improving emergency response speed and operational reliability but also effectively improving the working environment and reducing safety risks. It is a powerful aid in ensuring the continuous, stable, and safe production of thermal power plants.

[0057] The usage process of one possible embodiment is illustrated in conjunction with the accompanying drawings and technical solutions: S1. First, the mobile belt feeder is transported to the usage location by trailer. The feeding position is determined based on the material conveying height and distance. The linear drive unit (slide movement cylinder) is controlled, pulling the carrier slide from one end to the other. The carrier slide is equipped with a rolling support assembly that moves on the guide rail. After the carrier slide is in position (working position), the drive unit is activated by controlling the angle of the conveyor according to the target material location. This causes the entire telescopic belt to rotate along the hinge seat, adjusting the belt's tilt angle. Then, the extension section of the secondary telescopic belt conveyor is extended (generally, at least two extension sections are required). Through angle and extension length control, the output end of the telescopic belt ultimately reaches the target material location.

[0058] S2. Then, the material is fed into the silo. After passing through the grating plate of the silo, it enters the bottom opening. (A material fluidizer is installed at the bottom of the silo to facilitate smooth material flow.) The drive unit is started to drive the screw conveyor shaft to push the material out of the conveying chamber. The material falls onto the primary belt conveyor through the outlet. The primary belt conveyor transports the material to the corresponding telescopic belt, and the telescopic belt transports the material to the target position.

[0059] S3. Manually remove unpassed material from the grating plate periodically to prevent material from clogging the grating plate.

[0060] S4. After the material conveying task is completed, the secondary telescopic belt conveyor is retracted. Then, the angle of the secondary telescopic belt conveyor is set to horizontal. The linear drive unit is controlled to retract the secondary telescopic belt conveyor into the motorized base. Then, the feeder is transported to the storage location by a transfer vehicle. An elastic support column is installed at the lower end of the silo inlet, and a buffer pad is installed at the upper end of the elastic support column. The upper surface of the buffer pad is in contact with the bottom of the silo but not fixedly connected.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "preferred embodiment," "detailed description," or "preferred embodiment," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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. Therefore, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of this utility model.

Claims

1. An adjustable belt feeder, comprising a motorized base (101) equipped with a walking system, characterized in that, Also includes: The feeding module is mounted on the motorized base (101). The feeding module includes a hopper (201) for holding materials. A primary sorting mechanism is provided inside the hopper (201). The bottom opening (208) of the hopper (201) is connected to an axial forced feeding mechanism. A primary belt conveyor (213) is provided below the outlet of the axial forced feeding mechanism. The adjustable telescopic conveyor module includes a load-bearing carriage (303) slidably connected to the motorized base (101) via a linear drive unit (305), and a secondary telescopic belt conveyor (301) mounted on the load-bearing carriage (303) via a pitch adjustment mechanism; wherein the pitch adjustment mechanism includes a hinge shaft and an angle control drive unit (302), the pitch adjustment mechanism being used to drive the secondary telescopic belt conveyor (301) to rotate around the hinge shaft to adjust the tilt angle; The discharge end of the primary belt conveyor (213) corresponds to the receiving end of the secondary telescopic belt conveyor (301) and is used to supply material to the secondary telescopic belt conveyor (301).

2. The adjustable belt feeder according to claim 1, characterized in that, The primary sorting mechanism employs a grid plate (202) arranged inside the bin (201), and an inclined material sliding channel (20301) is formed inside the bin (201); the lower part of the grid plate (202) is configured as an inclined part (20201) that bends towards the material sliding channel, so as to reduce the included angle between the grid plate (202) and the material sliding channel (20301).

3. The adjustable belt feeder according to claim 1, characterized in that, The axial forced feeding mechanism includes a spiral conveying shaft (212) driven by a drive unit (209) and a conveying cavity (210) for accommodating the spiral conveying shaft (212). The inlet of the conveying cavity (210) is connected to the bottom opening (208) of the hopper (201), and the outlet (211) of the conveying cavity (210) is located above the receiving surface of the primary belt conveyor (213).

4. An adjustable belt feeder according to claim 1, characterized in that, The motorized base (101) is a rectangular frame structure; a guide rail (308) is provided on the inner bottom plate of the rectangular frame structure, and a rolling support assembly (309) that cooperates with the guide rail (308) is provided at the bottom of the bearing carriage (303); the rolling support assembly (309) moves within the guide rail (308); the fixed end of the linear drive unit (305) is connected to the motorized base (101), and the output end of the linear drive unit (305) is connected to the bearing carriage (303).

5. An adjustable belt feeder according to claim 4, characterized in that, The guide rail (308) is provided with anti-rollover limiting structures (307) on both sides to constrain the lateral displacement of the load-bearing carriage (303).

6. An adjustable belt feeder according to claim 1, characterized in that, The angle control drive unit (302) adopts an angle control cylinder. The cylinder body of the angle control cylinder is hinged to the upper surface of the bearing slide (303). The piston rod of the angle control cylinder is hinged to the frame of the secondary telescopic belt conveyor (301) through a linkage (306).

7. An adjustable belt feeder according to claim 1, characterized in that, The cargo compartment (201) is supported by pivots (207) on both sides on a support base (206) fixedly mounted on top of a motor base (101).

8. An adjustable belt feeder according to claim 7, characterized in that, The bottom of the hopper (201) is supported by an elastic support column (205), and the top of the elastic support column (205) is provided with a buffer pad (204).

9. An adjustable belt feeder according to claim 1, characterized in that, The walking system includes wheels (103) located at the bottom of the motorized base and a traction connector (102) located at the front end of the motorized base for towing and feeding devices.

10. An adjustable belt feeder according to claim 1, characterized in that, A material fluidizer (214) is installed at the bottom of the silo body (201).

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