Biomass boiler fuel conveying device

Abstract

The utility model discloses a biomass boiler fuel conveying device which comprises a storage bin, a feeding assembly, a fuel lower sliding way and a fuel temporary storage pipe, an automatic feeding assembly is arranged at the position of a vertical section discharging port, and the fuel lower sliding way inclining downwards is arranged below the vertical section discharging port. The output end of the fuel temporary storage pipe is inserted into the position, close to the top, in the combustion chamber, a blocking plate assembly is arranged at the opening position of the input end of the fuel temporary storage pipe, a discharging blocking plate is arranged at the oblique notch position of the fuel temporary storage pipe, and the top edge of the discharging blocking plate is rotationally installed at the top position of the oblique notch. The fuel temporary storage pipe is provided with a pushing assembly for pushing the discharging blocking plate to turn outwards. Uniform blanking and regular blanking are achieved by opening the size of the opening of the bent pipe through the feeding assembly, the discharging blocking plate is pushed by the pushing assembly to turn over towards the combustion chamber for blanking, fuel evenly falls down, tempering is avoided due to the fact that the blocking plate assembly is blocked, and blanking safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler fuel conveying technical field especially relates to a kind of biomass boiler fuel conveying device. BACKGROUND

[0002] Biomass fuel is the direct utilization fuel of crop straw, sawdust, sawdust, peanut shell, corn cob, rice husk, branch, leaf, hay by compression molding.No any additive and binder, it is a kind of renewable clean energy.And biomass boiler is the furnace type of using new technology and professional equipment to burn biomass fuel, and the burnout rate reaches 96%, and the remaining 4% ash can be recycled potassium fertilizer.Fuel in combustion process, little environmental pollution, biomass fuel as the fourth largest energy besides coal, oil, natural gas, it will become the most important one of future world's energy.The fuel conveying device of traditional biomass boiler is mainly used to convey biomass fuel to the grate of biomass boiler, and it has at least the following shortcomings:1, it basically depends on manual, especially for large biomass boiler, it needs two or more stokers to continuously feed fuel into the boiler with shovel, and the working efficiency is low, the production cost is improved, and it is not only time-consuming and labor-intensive but also wastes personnel.2, during fuel conveying, it is easy to accumulate due to uneven fuel conveying, and then cause coking problem.3, the flame in the grate spreads to the feed along the continuously supplied fuel, and even threatens biomass material source, and produces backfire problem. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art to some extent.Therefore, one purpose of the utility model is to provide a kind of biomass boiler fuel conveying device, solve the problem of inconvenient feeding, low efficiency, uneven conveying, easy to accumulate, easy to backfire at feeding port position and other problems.

[0004] According to the biomass boiler fuel conveying device provided by the utility model, the bottom of the storage bin is provided with a bent pipe, the discharge port position of the bent pipe is a vertical section discharge port, the vertical section discharge port position is provided with an automatic feeding assembly, the vertical section discharge port is provided with a downward inclined fuel downslide, the fuel temporary storage pipe is a downward inclined square tube, the output end is a bevel, the output end of the fuel temporary storage pipe is inserted into the combustion chamber near the top position, the input end opening position of the fuel temporary storage pipe is provided with a baffle assembly, the bevel position of the fuel temporary storage pipe is provided with a discharge baffle, the top edge of the discharge baffle is rotatably installed at the bevel top position, the discharge baffle can automatically turn down to block the bevel, the fuel temporary storage pipe is provided with a pushing assembly for pushing the discharge baffle to turn outwards, and the output end of the fuel downslide is inserted into the pipe opening of the input end of the fuel temporary storage pipe.

[0005] In some embodiments of the utility model, the feeding assembly includes a feeding block and a first pulling cylinder, the feeding block is rotatably installed on the top of the vertical section discharge port, the cylinder shaft of the first pulling cylinder is rotatably installed on the middle position of the outer side of the feeding block, and the tail end of the first pulling cylinder is rotatably installed.

[0006] In some other embodiments of the utility model, the fuel slide has a stop edge on both sides, and the fuel slide is inclined downward at an angle of 30-45°.

[0007] In some other embodiments of the utility model, the block assembly includes an inlet pull plate and a pulling cylinder, the inlet pull plate is vertically inserted from the upper side wall of the fuel temporary storage pipe inlet position, and the cylinder shaft of the pulling cylinder is connected with the top edge of the inlet pull plate through a pull rod.

[0008] In some other embodiments of the utility model, the pushing assembly includes a pushing cylinder and a Z-shaped push rod, the cylinder shaft of the pushing cylinder is connected with the Z-shaped push rod, the Z-shaped push rod is movably inserted into the fuel temporary storage pipe, and the front end of the Z-shaped push rod is abutted against the back surface of the unloading block.

[0009] In some other embodiments of the utility model, a sag block is fixed to the position close to the bottom edge of the outer side wall of the unloading block.

[0010] In the utility model, the opening size of the bending pipe is opened by the feeding assembly to realize uniform and periodic discharging, the unloading block mechanism is opened when the fuel slides, the fuel slides into the fuel temporary storage pipe, the unloading block mechanism is closed, the unloading block is pushed to the combustion chamber by the pushing assembly, the fuel is discharged, the fuel is uniformly discharged, the block assembly is blocked, the fuel is not reheated, and the discharging safety is high. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation on the utility model.

[0012] Fig. 1 It is a structural schematic view of the biomass boiler fuel conveying device (when not discharging) of the utility model.

[0013] Fig. 2 It is a structural schematic view of the biomass boiler fuel conveying device (when discharging) of the utility model.

[0014] Fig. 3 It is a structural schematic view of the fuel temporary storage pipe when starting feeding of the utility model.

[0015] In the figure: 1, storage bin; 11, bent pipe; 2, feeding blocking plate; 21, first pulling air cylinder; 3, fuel downslide; 4, fuel temporary storage pipe; 5, inlet pulling plate; 51, pulling air cylinder; 6, unloading blocking plate; 61, drooping block; 7, Z-shaped push rod; 71, pushing air cylinder. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0017] Examples of the described embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0018] Reference Figs. 1-3 A biomass boiler fuel conveying device, comprising a storage bin 1, a feeding assembly, a fuel downslide 3 and a fuel temporary storage pipe 4, the bottom of the storage bin 1 is provided with a bent pipe 11, the discharge port position of the bent pipe 11 is a vertical cross-section discharge port, the vertical cross-section discharge port position is provided with an automatic feeding assembly, the vertical cross-section discharge port is provided below with a downwardly inclined fuel downslide 3, the fuel temporary storage pipe 4 is a downwardly inclined square pipe, the output end is a bevel, the output end of the fuel temporary storage pipe 4 is inserted into the combustion chamber near the top position, the input end opening position of the fuel temporary storage pipe 4 is provided with a blocking plate assembly, the bevel position of the fuel temporary storage pipe 4 is provided with an unloading blocking plate 6, the top edge of the unloading blocking plate 6 is rotatably installed at the bevel top position, the unloading blocking plate 6 can automatically turn down to block the bevel, the fuel temporary storage pipe 4 is provided with a pushing assembly for pushing the unloading blocking plate 6 to turn outwards, and the output end of the fuel downslide 3 is inserted into the pipe opening of the input end of the fuel temporary storage pipe 4.

[0019] A large amount of fuel (straw, branches, etc.) is accumulated in the storage bin 1, which is slowly discharged by periodically opening the feeding assembly, and the fuel falls into the fuel downslide 3 and slides down, and at the same time the blocking plate assembly is opened, the fuel slides down and enters the fuel temporary storage pipe 4, and since the unloading blocking plate 6 at the outlet position of the fuel temporary storage pipe 4 cannot be easily turned open, a part of the fuel will be accumulated in the pipe, the unloading blocking plate 6 is pushed open by the pushing assembly to unload, the fuel falls into the combustion chamber to be burned, and the combustion flame cannot be discharged from the fuel temporary storage pipe 4, and the flame cannot be blocked by the blocking plate assembly.

[0020] The feeding assembly comprises a feeding block 2 and a first pulling cylinder 21, the feeding block 2 is rotatably installed on the top of the vertical section discharge port, the cylinder shaft of the first pulling cylinder 21 is rotatably installed on the middle position of the outer side of the feeding block 2, and the tail end of the first pulling cylinder 21 is rotatably installed.

[0021] The feeding block 2 is pulled outward by the first pulling cylinder 21 to form an opening for discharging, and the discharging speed is determined according to the size of the opening. When not discharging, the opening is pushed to be blocked.

[0022] The fuel slide 3 is provided with a baffle on both sides, and the downward inclination angle of the fuel slide 3 is 30-45°. The fuel slides along the fuel slide and cannot run out, and the width of the fuel slide 3 is greater than that of the feeding block 2.

[0023] The block assembly comprises an inlet pulling plate 5 and a pulling cylinder 51, the inlet pulling plate 5 is vertically inserted from the upper side wall of the inlet position of the fuel temporary storage pipe 4, and the cylinder shaft of the pulling cylinder 51 is connected with the top edge of the inlet pulling plate 5 through a pulling rod. The inlet pulling plate 5 is pulled out to feed the fuel into the fuel temporary storage pipe 4, and when discharging is needed, the inlet pulling plate 5 is blocked.

[0024] The pushing assembly comprises a pushing cylinder 71 and a Z-shaped pushing rod 7, the cylinder shaft of the pushing cylinder 71 is connected with the Z-shaped pushing rod 7, the Z-shaped pushing rod 7 is movably inserted into the fuel temporary storage pipe 4, and the front end of the Z-shaped pushing rod 7 is abutted against the back surface of the discharging block 6. The Z-shaped pushing rod 7 pushes the discharging block 6 with a certain weight into the combustion chamber by the pushing cylinder 71, an outlet is formed, and the fuel automatically slides into the combustion chamber.

[0025] The discharging block 6 is fixed with a downward block 61 close to the bottom edge of the outer side wall. The weight of the discharging block 6 is increased, so that the discharging block 6 cannot be automatically opened and needs to be pushed.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A biomass boiler fuel conveying device, characterized in that: The system includes a storage bin (1), a feeding assembly, a fuel chute (3), and a fuel storage pipe (4). The storage bin (1) has a bent pipe (11) at its bottom. The outlet of the bent pipe (11) is a vertically slit outlet. An automatic feeding assembly is located at the vertically slit outlet. Below the vertically slit outlet is a downwardly sloping fuel chute (3). The fuel storage pipe (4) is a downwardly sloping square tube with a slanted output end. The output end of the fuel storage pipe (4) is inserted into... Near the top of the combustion chamber, a blocking plate assembly is provided at the opening of the inlet of the fuel storage pipe (4), and a discharge blocking plate (6) is provided at the oblique cut of the fuel storage pipe (4). The top edge of the discharge blocking plate (6) is rotatably installed at the top of the oblique cut. The discharge blocking plate (6) can automatically flip down to block the oblique cut. A pushing assembly is provided on the fuel storage pipe (4) to push the discharge blocking plate (6) outward. The output end of the fuel slide channel (3) is inserted into the pipe opening at the inlet of the fuel storage pipe (4).

2. The biomass boiler fuel conveying device according to claim 1, characterized in that: The feeding assembly includes a feeding block plate (2) and a first pulling cylinder (21). The top of the feeding block plate (2) is rotatably installed at the top of the vertical cut-out outlet. The cylinder shaft of the first pulling cylinder (21) is rotatably installed at the middle of the outer side of the feeding block plate (2). The tail end of the first pulling cylinder (21) is rotatably installed.

3. The biomass boiler fuel conveying device according to claim 1, characterized in that: The fuel slide channel (3) is provided with baffles on both sides, and the fuel slide channel (3) is inclined downward at an angle of 30-45°.

4. The biomass boiler fuel conveying device according to claim 1, characterized in that: The blocking plate assembly includes an inlet pull plate (5) and a pull cylinder (51). The inlet pull plate (5) is inserted vertically into the upper side wall of the fuel temporary storage pipe (4) at the inlet position. The cylinder shaft of the pull cylinder (51) is connected to the top edge of the inlet pull plate (5) through a pull rod.

5. A biomass boiler fuel conveying device according to claim 1, characterized in that: The pushing assembly includes a pushing cylinder (71) and a Z-shaped push rod (7). The Z-shaped push rod (7) is connected to the cylinder shaft of the pushing cylinder (71). The Z-shaped push rod (7) moves through the fuel temporary storage pipe (4) and abuts the front end of the Z-shaped push rod (7) against the back of the unloading block plate (6).

6. A biomass boiler fuel conveying device according to claim 1, characterized in that: A drooping block (61) is fixed on the outer side wall of the unloading block (6) near the bottom edge.

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