Biomass fuel storage and feeding device

Abstract

This utility model discloses a biomass fuel storage and feeding device, relating to the technical field of biomass fuel conveying equipment. It includes a frame, with a hopper fixed to the top of the frame. The hopper is divided internally by a partition component to form multiple storage units. The height of the partition component is lower than the height of the hopper's sidewall, allowing the multiple storage units to form storage spaces where the bottoms are independent and the tops are interconnected. Multiple screw feeders are respectively installed at the bottom outlets of the storage units. A chain conveyor mechanism is installed inside the frame, below the hopper, to receive and convey biomass fuel falling through the screw feeders. By dividing the hopper internally into multiple storage units with interconnected tops and independent bottoms, large-capacity storage and independent zoned feeding control are achieved, eliminating the need for independent silos and saving floor space. It also achieves centralized automated material conveying and continuous and stable feeding, solving the problem of production interruptions caused by single equipment failures.

Description

Technical Field

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

[0002] Biomass fuel is an important renewable fuel for thermal equipment such as gasifiers and boilers. The continuity and stability of its storage, transportation and feeding directly affect the operating efficiency of the production system. In the process of applying biomass fuel to gasifiers, the stable and timely supply of biomass fuel in the gasifier is the core element to ensure the efficient operation of the gasifier and maintain a stable gas supply.

[0003] Currently, existing projects generally adopt the traditional model of building independent biomass storage silos and manually operating forklifts for feeding. This model has significant drawbacks: First, from an operational perspective, it requires dedicated personnel and continuous forklift operation, resulting in high labor and equipment maintenance costs. Furthermore, if the forklift malfunctions or personnel operation is interrupted, the feeding process immediately stops, leading to an interruption of fuel supply to the gasifier and disrupting the combustion reaction inside the furnace, thus affecting the stability and continuity of gas production. Second, from the perspective of construction costs and land use planning, the construction of independent silos requires a large investment in infrastructure and occupies valuable plant area, making it less feasible for projects with limited land or budgets. Third, existing silos have a single function, only providing storage, and the feeding process relies entirely on external equipment, making it impossible to achieve integrated automatic control of storage and transportation.

[0004] Most importantly, traditional silos, as a single storage unit, are subject to the risk of a "single point of failure." The feeding function of the entire system depends entirely on a single discharge outlet. Once the outlet or related feeding equipment becomes blocked or damaged, the entire feeding system will stop, restricting the reliability and continuity of production.

[0005] Therefore, how to provide a storage and feeding device that integrates storage and feeding functions to achieve fully automatic, precise and controllable conveying is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a biomass fuel storage and feeding device, which aims to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A biomass fuel storage and feeding device, comprising:

[0009] A frame, with a hopper fixed to the top of the frame. The hopper is divided into multiple storage units by a partition component. The height of the partition component is lower than the height of the side wall of the hopper, so that the multiple storage units form a storage space with independent bottoms and interconnected tops.

[0010] Multiple screw feeders are installed at the bottom outlet of the storage unit, respectively.

[0011] A chain conveyor mechanism is installed inside the frame and below the hopper to receive and convey biomass fuel falling through the screw feeder.

[0012] Through the above technical solution, the biomass fuel storage and feeding device provided by this utility model forms multiple storage units with interconnected tops and independent bottoms through the internal division of an integral hopper, realizing the unity of large-capacity storage and independent control of feeding in different zones. It eliminates the need to build traditional independent silos, saving land area and infrastructure costs. The common chain conveyor mechanism at the bottom realizes centralized and automated material transportation, reducing the dependence on manpower and machinery (such as forklifts), improving the continuity and stability of feeding, and solving the problem of production interruption caused by the failure of a single piece of equipment.

[0013] Preferably, in the above-mentioned biomass fuel storage and feeding device, the separating component includes a first partition and a second partition arranged at a distance from each other at the bottom and overlapping at the top. This structural arrangement not only achieves effective physical separation and ensures the independence of each storage unit, but its overlapping form also enhances the connection strength and sealing between the partitions, helping to prevent fine materials from getting stuck or leaking at the gaps in the partitions, thus improving the reliability and service life of the equipment.

[0014] Preferably, in the above-described biomass fuel storage and feeding device, the top of the second partition has a bent plate extending to the top sidewall of the first partition, and the bent plate is fixedly connected to the first partition. The design of the bent plate provides a larger welding or connection area, making the connection between the first and second partitions more robust and stable. This structure enhances the overall rigidity and structural integrity of the partition assembly, better withstands the lateral pressure of materials, prevents partition deformation, and ensures long-term reliability.

[0015] Preferably, in the above-mentioned biomass fuel storage and feeding device, a baffle is provided around the top edge of the hopper, and reinforcing ribs are fixed to the outer side wall of the hopper. The baffle design can prevent material from spilling from the top edge of the hopper during the feeding process, reducing material waste and maintaining a clean working environment; the reinforcing ribs significantly enhance the structural strength and rigidity of the hopper side wall, enabling it to withstand the huge lateral pressure generated by a large amount of biomass fuel, preventing the hopper wall from deforming, bulging, or cracking, and improving the structural stability and safety of the entire device.

[0016] Preferably, in the above-mentioned biomass fuel storage and feeding device, the chain conveyor mechanism includes annular chain plates and a drive unit for driving the annular chain plates in a cyclical manner. The annular chain plates enable continuous and cyclical material conveying, and the drive unit provides a stable and reliable power source. This structure ensures that biomass fuel can be smoothly and efficiently conveyed from below the hopper to the target equipment (such as a gasifier), which is key to achieving automated feeding.

[0017] Preferably, in the above-mentioned biomass fuel storage and feeding device, the drive unit includes a first motor, a drive shaft, and a gear. The first motor is mounted on the frame. One end of the drive shaft is fixedly connected to the power output shaft of the first motor, and the other end is mounted on the frame via a bearing seat. The gear is sleeved on the outside of the drive shaft and meshes with the annular chain plate. Through the meshing of the gear and the annular chain plate, the rotational power of the motor is efficiently and accurately converted into the linear movement of the chain plate, ensuring the controllability and stability of the conveying speed and avoiding problems such as slippage.

[0018] Preferably, in the above-mentioned biomass fuel storage and feeding device, the annular chain plate has rollers on both sides, and the inner side of the frame has a support rail for the rollers to move. The cooperation between the rollers and the support rail transforms the sliding friction between the chain plate and the rail into rolling friction, which greatly reduces the running resistance, making the conveying process more energy-efficient, smoother, and with less wear; this reduces the operating noise and maintenance costs of the equipment, and extends the service life of the chain plate and the rail.

[0019] Preferably, in the above-mentioned biomass fuel storage and feeding device, a limit baffle is installed on the support rail. The installation of the limit baffle can effectively prevent the rollers from derailing from the rail or running off-track due to lateral forces during operation.

[0020] Preferably, the above-mentioned biomass fuel storage and feeding device further includes a baffle plate located below the hopper. One end of the baffle plate is fixed to the frame, and the other end abuts against the side edge of the annular chain plate. The baffle plate forms an effective sealing barrier on both sides of the chain plate conveying mechanism. It prevents biomass fuel from spilling or leaking from the side gaps of the chain plate, reducing material loss and preventing the accumulation, entanglement, or even damage to the chain plate drive components by leaked material, thus maintaining a clean working environment and reliable equipment operation.

[0021] Preferably, in the above-mentioned biomass fuel storage and feeding device, two parallel screw feeders are installed inside each storage unit. The placement of two parallel screw feeders at the bottom of each storage unit significantly increases the discharge capacity and speed of each unit. The two feeders can work collaboratively or serve as backups for each other. If one fails, the other can still maintain low-speed feeding, greatly enhancing the system's redundancy and fault tolerance, and further ensuring continuous and uninterrupted feeding operations.

[0022] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a biomass fuel storage and feeding device, which has the following beneficial effects:

[0023] 1. This utility model adopts an integrated design that divides the interior of a single hopper into multiple storage units, replacing the traditional bulky and independent concrete or steel silos, thereby reducing the equipment footprint and civil engineering investment.

[0024] 2. This utility model achieves full automation of the entire process from storage to conveying by the coordinated work of the spiral feeder at the bottom of each storage unit and the common chain conveyor mechanism, replacing the traditional mode of continuous operation relying on forklifts and manual labor. This not only saves continuous labor and machinery costs, but also fundamentally avoids material feeding interruptions caused by personnel operation interruptions or mechanical equipment failures, ensuring the continuity and stability of material supply to downstream gasifiers and other equipment.

[0025] 3. This utility model, through the top-through and bottom-independent bin design, combined with multiple independently controllable screw feeders, ensures that even if a single screw feeder fails, other units can continue to work, thus solving the drawback of traditional single bin failure leading to a complete production stoppage. Attached Figure Description

[0026] 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.

[0027] Figure 1 The attached figure is a cross-sectional view of the biomass fuel storage and feeding device provided by this utility model;

[0028] Figure 2 The attached image is... Figure 1 Enlarged view of section A in the attached figure;

[0029] Figure 3 The attached figure is a left view of the biomass fuel storage and feeding device provided by this utility model;

[0030] Figure 4 The attached image is... Figure 3 Enlarged view of section B in the attached figure.

[0031] in:

[0032] 1-Frame; 11-Support rail; 12-Limit baffle; 13-First mounting platform; 14-Third mounting platform; 15-Mounting base; 2-Hopper; 21-Storage unit; 22-Baffle; 23-Reinforcing rib; 3-Separation assembly; 31-First partition; 32-Second partition; 33-Bending plate; 34-Second mounting platform; 35-Reinforcing rib; 4-Screw feeder; 41-Second motor; 42-Screw; 43-Support base; 5-Chain conveyor mechanism; 51-Annular chain plate; 511-Roller; 52-Drive unit; 521-First motor; 522-Drive shaft; 523-Gear; 524-Bearing seat; 6-Baffle plate. Detailed Implementation

[0033] 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.

[0034] See appendix Figure 1 To be continued Figure 4 This utility model discloses a biomass fuel storage and feeding device, comprising:

[0035] The frame 1 has a hopper 2 fixed on its top. The hopper 2 is divided into multiple storage units 21 by a partition component 3. The height of the partition component 3 is lower than the height of the side wall of the hopper 2, so that the multiple storage units 21 form a storage space with independent bottoms and interconnected tops.

[0036] Multiple screw feeders 4 are installed at the bottom outlet of the storage unit 21 respectively.

[0037] Chain conveyor 5 is installed inside the frame 1 and below the hopper 2 to receive and convey biomass fuel falling through the screw feeder 4.

[0038] In some examples, the rack 1 is fixed to the mounting base 15, which is fixed to the ground.

[0039] In some specific examples, the partition component 3 includes a first partition 31 and a second partition 32 that are spaced apart at the bottom and overlap each other at the top.

[0040] In some other embodiments, the top of the second partition 32 has a bent plate 33 extending to the top sidewall of the first partition 31, and the bent plate 33 is fixedly connected to the first partition 31.

[0041] More specifically, the bent plate 33 and the first partition plate 31 are fixed by welding or fasteners.

[0042] In a specific example, the outer walls of both the first partition 31 and the second partition 32 are fixed with reinforcing ribs 35.

[0043] In a specific embodiment, a baffle 22 is provided around the top edge of the hopper 2, and a reinforcing rib 23 is fixed to the outer side wall of the hopper 2.

[0044] In a specific example, the chain conveyor mechanism 5 includes an annular chain plate 51 and a drive unit 52 for driving the annular chain plate 51 to circulate.

[0045] In some examples, the drive unit 52 includes a first motor 521, a drive shaft 522 and a gear 523. The first motor 521 is mounted on the frame 1. One end of the drive shaft 522 is fixedly connected to the power output shaft of the first motor 521, and the other end is mounted on the frame 1 through a bearing seat 524. The gear 523 is sleeved on the outside of the drive shaft 522 and meshes with the annular chain plate 51.

[0046] More specifically, the ring-shaped chain plate 51 has rollers 511 on both sides, and the inner side of the frame 1 has a support rail 11 for the rollers 511 to move.

[0047] In some specific examples, a limit baffle 12 is installed on the support rail 11.

[0048] In some other embodiments, a baffle plate 6 located below the hopper 2 is also included, with one end of the baffle plate 6 fixed to the frame 1 and the other end abutting against the side edge of the annular chain plate 51.

[0049] In a specific example, two parallel spiral feeders 4 are installed inside each storage unit 21, and each spiral feeder 4 has a threaded section with opposite directions of rotation on its screw.

[0050] Specifically, each screw feeder 4 includes a second motor 41, a screw 42, and a support 43 (with bearings installed inside the support 43); for example Figure 1 As shown, the second motor 41 is fixed on the first mounting platform 13 outside the hopper 2, or on the second mounting platform 34 located between the first partition 31 and the second partition 32; one end of the screw 42 is connected to the power output shaft of the second motor 41, and the other end passes through the storage unit 21 and is mounted on the second mounting platform 34 or the third mounting platform 14 through the support base 43.

[0051] In this embodiment, there are two dividing components 3, which divide the inside of the hopper 2 into three storage units 21 (the number of dividing components 3 can be determined according to actual needs to meet different numbers of storage units 21); therefore, there are at least three screw feeders 4, or six (that is, two screw feeders 4 are arranged in each storage unit 21).

[0052] like Figure 1 As shown, the second motor 41 of the screw feeder 4 on the left is fixed to the outside of the hopper 2 via the first mounting platform 13. One end of the screw 42 is driven to the power output shaft of the second motor 41, and the other end passes through the side wall of the storage unit 21 on the left and is mounted on the second mounting platform 34 via the support base 43. The second motor 41 of the screw feeder 4 in the middle is mounted on the second mounting platform 34. One end of the screw 42 is driven to the power output shaft of the second motor 41, and the other end passes through the side wall of the storage unit 21 in the middle and is fixed on the second mounting platform 34 via the support base 43. The second motor 41 of the screw feeder 4 on the right is mounted on the second mounting platform 34. One end of the screw 42 is driven to the power output shaft of the second motor 41, and the other end passes through the side wall of the storage unit 21 on the right and is mounted on the third mounting platform 14 via the support base 43.

[0053] The embodiments of this utility model are as follows:

[0054] Biomass fuel is fed from the top of the hopper 2. Since the inside of the hopper 2 is divided into multiple storage units 21 by the partition component 3, and each unit is connected at the top and independent at the bottom, the fuel can be naturally distributed and temporarily stored in each storage unit 21. The screw feeder 4 at the bottom of the corresponding storage unit 21 can be activated to supply fuel to downstream equipment (such as gasifier).

[0055] The second motor 41 of the screw feeder 4 drives the screw 42 to rotate, pushing biomass fuel from the bottom outlet of the storage unit 21 to the chain conveyor mechanism 5 below through the threads on the screw 42. Since each storage unit 21 is equipped with two screw feeders 4, which can be controlled independently, even if the screw feeder 4 of one storage unit 21 fails, the screw feeder 4 in the other storage unit 21 can continue to work, ensuring uninterrupted material supply.

[0056] After the biomass fuel falls onto the annular chain plate 51, the drive unit 52 drives the chain plate to circulate along the support track 11, conveying the material to the discharge port. The baffle plate 6 prevents material from leaking from both sides of the chain plate, and the limit baffle plate 12 ensures that the roller 511 does not derail. The entire conveying process is continuous, stable, and automated. This device realizes the zoned storage, independent control, and centralized conveying of biomass fuel, effectively avoiding the problem of traditional single point of failure and improving the reliability and automation level of the system.

[0057] 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.

[0058] 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 biomass fuel storage and feeding device, comprising: A frame (1) is provided, and a hopper (2) is fixed on the top of the frame (1). The hopper (2) is divided into multiple storage units (21) by a partition component (3). The height of the partition component (3) is lower than the height of the side wall of the hopper (2), so that the multiple storage units (21) form a storage space with independent bottoms and interconnected tops. Multiple screw feeders (4) are respectively installed at the bottom outlet of the storage unit (21); Chain conveyor (5), which is installed inside the frame (1) and below the hopper (2), to receive and convey biomass fuel falling through the screw feeder (4).

2. The biomass fuel storage and feeding device according to claim 1, characterized in that, The partition assembly (3) includes a first partition (31) and a second partition (32) arranged at a bottom gap and overlapping each other at the top.

3. The biomass fuel storage and feeding device according to claim 2, characterized in that, The top of the second partition (32) has a bent plate (33) extending to the top sidewall of the first partition (31), and the bent plate (33) is fixedly connected to the first partition (31).

4. The biomass fuel storage and feeding device according to claim 1, characterized in that, The top edge of the hopper (2) is surrounded by a baffle (22), and the outer side wall of the hopper (2) is fixed with reinforcing ribs (23).

5. A biomass fuel storage and feeding device according to claim 1, characterized in that, The chain conveyor mechanism (5) includes an annular chain plate (51) and a drive unit (52) for driving the annular chain plate (51) to circulate.

6. A biomass fuel storage and feeding device according to claim 5, characterized in that, The drive unit (52) includes a first motor (521), a drive shaft (522), and a gear (523). The first motor (521) is mounted on the frame (1). One end of the drive shaft (522) is fixedly connected to the power output shaft of the first motor (521), and the other end is mounted on the frame (1) through a bearing seat (524). The gear (523) is sleeved on the outside of the drive shaft (522) and meshes with the annular chain plate (51).

7. A biomass fuel storage and feeding device according to claim 6, characterized in that, The ring-shaped chain plate (51) has rollers (511) on both sides, and the inner side of the frame (1) has a support rail (11) for the rollers (511) to move.

8. A biomass fuel storage and feeding device according to claim 7, characterized in that, Limiting baffles (12) are installed on the support rail (11).

9. A biomass fuel storage and feeding device according to claim 5, characterized in that, It also includes a baffle plate (6) located below the hopper (2), one end of which is fixed to the frame (1), and the other end abuts against the side edge of the annular chain plate (51).

10. A biomass fuel storage and feeding device according to claim 1, characterized in that, Two parallel spiral feeders (4) are installed on the inner side of each of the storage units (21), and each spiral feeder (4) has a threaded section with opposite directions of rotation on its screw.

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