Fully-automatic biomass fuel underground storage and feeding device

Abstract

The utility model discloses a kind of full-automatic biomass fuel underground storage feeding device, it is related to biomass fuel conveying equipment technical field, including being set below ground intercommunication storage bin and loading bin, further include: pushing mechanism, pushing mechanism includes the pushing part of being installed in one end of storage bin, and the pushing plate that is pushed by pushing part and moves along storage bin;Discharge mechanism is installed in one end of storage bin away from pushing part;Hopper is installed in one end of loading bin close to storage bin, and it is located below discharge mechanism;Loading conveying mechanism is located in loading bin, and its import end corresponds with the export end of hopper, realize that biomass fuel is automatically conveyed from underground;The entire storage feeding structure is set below ground, save factory construction land, replace traditional dependence on forklift and manual high-strength operation mode, reduce artificial cost and labor intensity, underground storage bin has greater volume, can store a large amount of biomass fuel, reduce loading frequency, suitable for continuous production.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass fuel conveying equipment, and more specifically to a fully automatic underground biomass fuel storage and feeding device. Background Technology

[0002] In applications where biomass fuels (such as straw and wood chip briquettes) are used in gasifiers, biomass boilers, and other thermal equipment, a continuous and stable fuel supply directly determines the operating efficiency and gas / heat production stability of the terminal equipment. Currently, the industry commonly uses the traditional feeding method of "independent above-ground silos + manual labor + forklifts / loaders," which presents the following unavoidable technical problems:

[0003] Traditional methods require the construction of independent above-ground biomass storage silos. These silos need to meet large-capacity storage requirements and occupy a large area. For projects with limited land (such as the renovation of old industrial parks or small and medium-sized biomass projects in the suburbs), it is difficult to coordinate the construction space for above-ground silos. At the same time, the entire feeding process is highly dependent on manual operation. To meet the continuous operation requirements of the gasifier, personnel and machinery need to be arranged to work in multiple shifts without interruption. Operators need to monitor the material level in the silo in real time and use forklifts to transfer fuel stockpiled off-site to the silo, or directly replenish the material from the silo to the feed port. This model has significant interruption risks: once the forklift / loader experiences mechanical failure (such as engine failure or hydraulic system damage), operators are temporarily absent, or severe weather such as rain, snow, or strong winds prevents the transfer of fuel off-site, the fuel supply will be directly interrupted, causing the gasifier to shut down and gas production to be interrupted.

[0004] Therefore, how to provide an underground storage and feeding device that integrates storage and feeding underground, achieves fully automatic continuous operation, and effectively saves space is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a fully automatic underground biomass fuel storage and feeding device, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fully automated underground biomass fuel storage and feeding device includes an underground storage and feeding structure located below ground level. The underground storage and feeding structure includes interconnected storage bins and a feeding bin, and further includes:

[0008] A pushing mechanism, comprising a pushing part installed at one end of the storage bin, and a pushing plate pushed by the pushing part and moving along the storage bin;

[0009] A discharge mechanism is installed at the end of the storage bin away from the pusher.

[0010] A hopper is installed at one end of the feeding bin near the storage bin and located below the unloading mechanism;

[0011] A feeding conveyor mechanism is located inside the feeding hopper, with its inlet end corresponding to the outlet end of the hopper, to realize the automatic underground transport of biomass fuel.

[0012] Through the above technical solution, this utility model provides a fully automatic underground biomass fuel storage and feeding device. By setting the entire storage and feeding structure underground, it replaces the traditional bulky ground-level silos, saving land for plant construction. Through the coordinated work of the three major mechanisms of pushing, unloading, and feeding, it replaces the traditional high-intensity operation mode that relies on forklifts and manual labor, reducing labor costs and labor intensity. It establishes a continuous material flow of storage silos, pushing plates, unloading mechanisms, hoppers, and feeding and conveying mechanisms, ensuring the stability and reliability of feeding to the gasifier and avoiding supply interruptions caused by manual or mechanical failures. At the same time, the underground storage silos have a large volume and can store a large amount of biomass fuel at one time, reducing the feeding frequency and making it suitable for large-scale continuous production.

[0013] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, a reinforcing bracket is fixed to the side wall of the pusher plate, and the reinforcing bracket is fixedly connected to the working end of the pusher section. The reinforcing bracket evenly distributes the pushing force of the pusher section to the back of the pusher plate, effectively preventing the pusher plate from bending or deforming when pushing a large amount of fuel, thus ensuring the mechanical reliability for long-term use.

[0014] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, multiple parallel sliding tracks are provided on the side wall of the storage silo, and pulleys that are slidably connected to the sliding tracks are embedded on both sides of the pusher plate. This converts sliding friction into rolling friction, significantly reducing the moving resistance of the pusher plate. This structure makes the movement of the pusher plate within the storage silo more effortless and smooth, reduces the power requirement of the pushing unit (such as a hydraulic cylinder or electric push rod), and improves the energy efficiency and service life of the entire system.

[0015] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, a stop block is fixed at the end of the slide. The stop block provides precise mechanical limitation on the stroke of the pusher plate. As a safety barrier, the stop block prevents the pusher plate from colliding with the unloading mechanism due to control failure or inertia, thereby protecting the pusher plate and the unloading mechanism and improving the safety of the equipment.

[0016] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, a screw conveyor is installed inside the hopper. This enables forced and uniform output of fuel from the hopper, preventing material from bridging or clogging at the hopper outlet; it effectively breaks up arches and stably pushes the fuel from the bottom of the hopper to the feeding conveying mechanism, solving the problem of poor discharge caused by wet or unevenly fluffy fuel.

[0017] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, a protective cover is installed at the inlet end of the feeding conveyor mechanism, and the top diameter of the protective cover is larger than the diameter of the hopper outlet. This prevents fuel from spilling from the inlet of the feeding conveyor mechanism (such as a conveyor belt) into the underground feeding hopper, maintaining environmental cleanliness, reducing waste, and ensuring that even if the material's falling trajectory deviates slightly, it can be effectively collected, ensuring that all fuel enters the feeding device, avoiding material accumulation at the bottom of the pit, and reducing cleaning work and material loss.

[0018] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, the unloading mechanism includes a mounting base fixed to one end of the storage hopper near the feeding hopper, and an annular unloading toothed chain plate arranged around the outside of the mounting base. The annular unloading toothed chain plate is driven by a drive unit to circulate and is used to transport materials to the hopper. Through its cyclical movement, the annular unloading toothed chain plate can evenly and quantitatively push the fuel pushed by the pusher plate into the hopper. Its rotation speed is adjustable, thereby allowing precise control of the amount of fuel entering the feeding system and achieving on-demand feeding.

[0019] Preferably, in the above-mentioned fully automatic underground biomass fuel storage and feeding device, the annular unloading toothed chain plate has rollers on both sides, and the mounting base has a track for the rollers to move. The track guides and constrains the movement trajectory of the rollers, ensuring that the toothed chain plate will not deviate, jam, or derail during operation, thus guaranteeing the stability of the unloading mechanism during long-term continuous operation.

[0020] Preferably, the above-mentioned fully automatic underground biomass fuel storage and feeding device further includes a baffle plate. One end of the baffle plate is fixedly connected to the track, and the other end abuts against the side edge of the annular unloading toothed chain plate. This effectively prevents foreign objects (such as fuel debris and dust) from entering between the track and the rollers, avoiding jamming. Biomass fuel is prone to generating dust and debris. By overlapping with the edge of the toothed chain plate, the baffle plate forms a sealing barrier, preventing impurities from entering key moving parts, reducing the failure rate, and reducing maintenance requirements.

[0021] Preferably, in the above-mentioned fully automated underground biomass fuel storage and feeding device, the depth of the feeding hopper is greater than the depth of the storage hopper. An inclined feeding and conveying mechanism (such as a hoist or inclined conveyor belt) provides sufficient installation space, creating a reasonable height difference, which is beneficial for material conveying.

[0022] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a fully automatic underground biomass fuel storage and feeding device, which has the following beneficial effects:

[0023] 1. This utility model integrates the entire storage and feeding system underground, replacing the traditional bulky ground-level silos, saving land for plant construction. At the same time, the underground environment provides natural rainproof and moisture-proof protection for biomass fuel, effectively ensuring fuel quality.

[0024] 2. This utility model realizes the fully automated operation from warehousing to material delivery. Through the coordinated work of the three major mechanisms of pushing, unloading and loading, a continuous and closed material flow is formed, which replaces the high-intensity and high-cost operation mode that relies on manual operation of forklifts, reduces labor and maintenance costs, and avoids material supply interruption caused by human factors.

[0025] 3. This utility model has undergone multiple reliability optimizations. The reinforced structure of the pusher plate, in conjunction with the pulley track, ensures uniform pushing force and smooth movement. The baffle design of the unloading mechanism can effectively prevent impurities from getting stuck in the track. The screw conveyor in the hopper and the protective cover of the feeding port solve the problems of material blockage and spillage, respectively. Together, they ensure the long-term stable operation of the system, with a low failure rate and simple maintenance.

[0026] 4. This utility model has excellent process control capabilities. The feeding speed, feeding rate and feeding amount can all be adjusted independently. It can be precisely matched according to the actual needs of the gasifier, realize on-demand feeding, further improve the economy of the system, and also ensure the continuity and stability of the production process. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 The attached figure is a top view of the fully automated underground biomass fuel storage and feeding device provided by this utility model;

[0029] Figure 2 The attached figure is a cross-sectional view of the fully automated underground biomass fuel storage and feeding device provided by this utility model;

[0030] Figure 3 The attached figure is a left view of the fully automatic underground biomass fuel storage and feeding device provided by this utility model;

[0031] Figure 4 The attached image is... Figure 1 Enlarged view of section A in the attached figure;

[0032] Figure 5 The attached image is... Figure 4 Enlarged view of section B in the attached figure.

[0033] in:

[0034] 1-Storage bin; 2-Feeding bin; 3-Pushing mechanism; 31-Pushing part; 32-Pushing plate; 33-Reinforcing bracket; 4-Unloading mechanism; 41-Mounting base; 42-Annular unloading toothed chain plate; 421-Roller; 43-Drive unit; 44-Railway; 45-Baffle plate; 5-Hopper; 51-Screw conveyor; 6-Feeding conveying mechanism; 61-Protective cover. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] See appendix Figure 1 To be continued Figure 5 This utility model discloses a fully automatic underground biomass fuel storage and feeding device, including an underground storage and feeding structure installed below ground level 7. The underground storage and feeding structure includes a storage bin 1 and a feeding bin 2 that are interconnected. The device is characterized by further comprising:

[0037] The material pushing mechanism 3 includes a material pushing part 31 installed at one end of the storage bin 1, and a material pushing plate 32 pushed by the material pushing part 31 and moving along the storage bin 1.

[0038] The unloading mechanism 4 is installed at the end of the storage bin 1 away from the pushing part 31;

[0039] Hopper 5 is installed at one end of the feeding bin 2 near the storage bin 1 and is located below the unloading mechanism 4;

[0040] The feeding conveyor 6 is arranged at an angle inside the feeding bin 2, and its inlet end corresponds to the outlet end of the hopper 5, so as to realize the automatic transportation of biomass fuel from underground.

[0041] In some examples, a reinforcing bracket 33 is fixed to the side wall of the pusher plate 32, and the reinforcing bracket 33 is fixedly connected to the working end of the pusher part 31.

[0042] Specifically, the pusher 31 is an electric push rod, or other linear telescoping structures, as long as it can drive the pusher plate 32 to move.

[0043] More specifically, in this embodiment, there are four pusher sections 31 arranged in a rectangular shape, which can enhance the stability of the pusher plate 32 movement.

[0044] In some specific examples, multiple parallel slides 11 are provided on the side wall of the storage bin 1, and pulleys that are slidably connected to the slides 11 are embedded on both sides of the pusher plate 32.

[0045] In some other embodiments, a stop 12 is fixed to the end of the slide 11.

[0046] In a specific example, a screw conveyor 51 is installed inside the hopper 5.

[0047] More specifically, there are two screw conveyors 51.

[0048] In a specific embodiment, a protective cover 61 is installed at the inlet end of the feeding conveying mechanism 6, and the top diameter of the protective cover 61 is larger than the diameter of the outlet of the hopper 5.

[0049] In a specific example, the unloading mechanism 4 includes a mounting base 41 fixed to one end of the storage bin 1 near the loading bin 2, and an annular unloading toothed chain plate 42 arranged around the outside of the mounting base 41. The annular unloading toothed chain plate 42 is driven by the drive unit 43 to run in a cycle to convey materials to the hopper 5.

[0050] In this embodiment, the drive unit 43 includes a drive motor, a reducer connected to the output end of the drive motor, and a drive sprocket driven by the output shaft of the reducer. The annular discharge toothed chain plate 42 meshes with the drive sprocket. A driven sprocket is also provided on the mounting base 41 at a position opposite to the drive sprocket. The annular discharge toothed chain plate 42 surrounds the drive sprocket and the driven sprocket, forming a cyclic transmission structure. The drive motor is preferably a speed-regulating motor to adjust the discharge rate as needed. The structure of the drive unit 43 is not limited to this configuration; any structure capable of driving the annular discharge toothed chain plate 42 to cyclically operate is acceptable.

[0051] In some examples, the annular unloading toothed chain plate 42 has rollers 421 on both sides, and the mounting base 41 has a track 44 for the rollers 421 to move.

[0052] More specifically, it also includes a baffle plate 45, one end of which is fixedly connected to the track 44, and the other end abuts against the side edge of the annular unloading toothed chain plate 42.

[0053] In some specific examples, the depth of the feeding hopper 2 is greater than the depth of the storage hopper 1.

[0054] More specifically, it also includes a control system that can control the opening and closing of various components and adjust the parameters of each component according to different needs.

[0055] The embodiments of this utility model are as follows:

[0056] See appendix Figures 1 to 5 The working process of this fully automatic underground biomass fuel storage and feeding device is as follows:

[0057] Biomass fuel (such as straw or wood chip briquettes) is first loaded into underground storage silo 1. When the gasifier or boiler requires fuel, the control system activates the various components.

[0058] Pushing process: The pushing part 31 of the pushing mechanism 3 (such as an electric push rod) starts working, pushing the pushing plate 32 along the storage bin 1 towards the unloading mechanism 4. The pulleys on both sides of the pushing plate 32 roll on the slide rail 11, changing sliding friction into rolling friction and reducing resistance. The reinforcing bracket 33 ensures that the pushing plate is subjected to uniform force and avoids deformation. The pushing plate 32 steadily pushes the fuel in the storage bin 1 towards the end of the unloading mechanism 4, and the stop block 12 at the end of the slide rail 11 acts as a mechanical limit to prevent the pushing plate from advancing too far.

[0059] Unloading process: Fuel is pushed to unloading mechanism 4. The drive unit 43 of unloading mechanism 4 is activated, driving the annular unloading toothed chain plate 42 to circulate. The rollers 421 on both sides of the annular unloading toothed chain plate 42 move on the track 44, and the baffle plate 45 prevents foreign objects from entering the track. The toothed chain plate evenly and quantitatively feeds the fuel into the hopper 5 below. By adjusting the rotation speed of the drive unit 43, the unloading amount can be controlled to achieve on-demand feeding.

[0060] Bucket conveying process: After fuel falls into hopper 5, the screw conveyor 51 inside the hopper starts, forcibly and evenly conveying the fuel to the hopper outlet to prevent material bridging or blockage. The rotation of the screw conveyor 51 breaks up arches and pushes the fuel, ensuring smooth discharge.

[0061] Feeding process: Fuel falls from the outlet of hopper 5 and enters the inlet of the feeding conveyor mechanism 6 through the protective cover 61. The top diameter of the protective cover 61 is larger than that of the hopper outlet to prevent fuel spillage. The feeding conveyor mechanism 6 lifts the fuel from the underground feeding silo 2 to the ground and directly delivers it to the feed inlet of the gasifier or boiler. Because the depth of the feeding silo 2 is greater than that of the storage silo 1, it provides sufficient installation space and tilt angle for the feeding conveyor mechanism 6, which is conducive to material lifting.

[0062] Throughout the process, the three main mechanisms—pushing, unloading, and loading—work in concert to form a continuous, closed material flow. The system operates fully automatically, requiring no manual intervention, thus avoiding supply interruptions caused by manual labor, machinery, or weather factors in traditional methods. Simultaneously, the underground structure saves land and provides natural rain and moisture protection, ensuring fuel quality.

[0063] This invention, through the above-described working principle, realizes underground storage and fully automated feeding of biomass fuel, improving the stability and reliability of the feeding process, and is suitable for large-scale continuous production.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automated underground biomass fuel storage and feeding device, comprising an underground storage and feeding structure disposed below ground level (7), wherein the underground storage and feeding structure comprises a storage silo (1) and a feeding silo (2) connected to each other, characterized in that, Also includes: The pushing mechanism (3) includes a pushing part (31) installed at one end of the storage bin (1) and a pushing plate (32) pushed by the pushing part (31) and moved along the storage bin (1); The unloading mechanism (4) is installed at one end of the storage bin (1) away from the pusher (31); The hopper (5) is installed at one end of the feeding bin (2) near the storage bin (1) and located below the unloading mechanism (4); The feeding conveyor (6) is located inside the feeding bin (2), and its inlet end corresponds to the outlet end of the hopper (5), so as to realize the automatic transportation of biomass fuel from underground.

2. The fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, The side wall of the pusher plate (32) is fixed with a reinforcing bracket (33), and the reinforcing bracket (33) is fixedly connected to the working end of the pusher part (31).

3. The fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, The storage bin (1) has multiple parallel slides (11) on its side wall, and the pusher plate (32) has pulleys on both sides that are slidably connected to the slides (11).

4. The fully automated underground biomass fuel storage and feeding device according to claim 3, characterized in that, A stop (12) is fixed at the end of the slide (11).

5. The fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, The hopper (5) is equipped with a screw conveyor (51).

6. The fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, A protective cover (61) is installed at the inlet end of the feeding conveyor (6), and the top diameter of the protective cover (61) is larger than the diameter of the outlet of the hopper (5).

7. The fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, The unloading mechanism (4) includes a mounting base (41) fixed to one end of the storage bin (1) near the loading bin (2), and an annular unloading toothed chain plate (42) arranged around the outside of the mounting base (41). The annular unloading toothed chain plate (42) is driven by a drive unit (43) to circulate and transport materials to the hopper (5).

8. The fully automated underground biomass fuel storage and feeding device according to claim 7, characterized in that, The annular unloading toothed chain plate (42) has rollers (421) on both sides, and the mounting base (41) has a track (44) for the rollers (421) to move.

9. A fully automated underground biomass fuel storage and feeding device according to claim 8, characterized in that, It also includes a baffle plate (45), one end of which is fixedly connected to the track (44), and the other end abuts against the side edge of the annular unloading toothed chain plate (42).

10. A fully automated underground biomass fuel storage and feeding device according to claim 1, characterized in that, The depth of the feeding hopper (2) is greater than the depth of the storage hopper (1).

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