Feeding device of biomass boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a biomass boiler feeding device which comprises a vertical frame, a feeding mechanism is arranged on the vertical frame and used for controlling feeding of materials, and the feeding mechanism comprises a telescopic assembly, a feeding port fixed to the front portion of the upper end of the vertical frame and a plurality of upper frames arranged below the feeding port. The upper folding cover is fixed to the bottom of the upper frame, the lower frame is fixed to the bottom of the upper folding cover, the lower folding cover is fixed to the bottom of the lower frame, the frame rod is fixed in the upper frame, the upper supporting rods are fixed to the four ends in the lower frame, and the lower supporting rods are rotationally installed at the four ends of the frame rod. A plurality of transverse rods are rotationally mounted on the upper supporting rod; materials can be vibrated through the discharging assembly, the bridging or blocking phenomenon caused by stacking is avoided, and when the discharging assembly is adjusted to be at different height positions, the telescopic assembly can be folded and stretched to be matched with the discharging assembly.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a biomass boiler feeding device. Background Technology

[0002] Currently, the traditional mechanical boiler feed design places the fuel in the front of the grate, with the fuel in the hopper directly contacting the grate. When burning biomass briquettes, the fuel has a high volatile content and a low ignition point, making it easier to ignite and burn. If the boiler is shut down or the grate feed rate is not adjusted properly, the flame in the furnace may backfire and burn into the hopper, which wastes fuel and is prone to causing fires, making it unsafe.

[0003] According to the public announcement (CN216481077U), a biomass briquettes boiler inclined auger feeding device is disclosed. This technology discloses "a biomass briquettes boiler inclined auger feeding device, located outside the boiler feed inlet and connected to the boiler feed inlet, including a fuel bin, a feeding auger, a transmission mechanism, and a blower; the feeding auger is inclined as a whole, and its front end is lower than its rear end; the feeding auger includes an auger feed inlet, an auger tube, an auger bearing chamber, an auger shaft, and auger spiral blades; the transmission mechanism includes an auger sprocket, a motor sprocket, a motor, a chain, and a motor base plate; the blower's air outlet is fixed to the upper part of the rear end of the auger tube, and the air outlet is directly opposite the rear end port of the auger tube." This technology has the technical effect of "effectively preventing flame backfire, back smoke, and fuel bin burning from the boiler feed inlet, ensuring the safe and reliable operation of the boiler."

[0004] The inability to adjust the discharge port height in the above scheme limits its flexibility and adaptability, and reduces its ability to automatically adjust the feeding amount. Furthermore, if the initial height is set too high, although it can be used with boilers of lower height, it may cause fuel to accumulate near the discharge port when using smaller particles or light fuels, forming bridging or blockage, which will affect the normal operation of the boiler. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a biomass boiler feeding device, which features the ability to vibrate materials through the discharge component to prevent accumulation and bridging or blockage. Furthermore, the telescopic component can be folded and extended to cooperate with the adjustment of the discharge component to different height positions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biomass boiler feeding device, comprising a vertical frame, on which a feeding mechanism is mounted for controlling material feeding, the feeding mechanism comprising:

[0007] The telescopic assembly includes an inlet fixed to the front of the upper end of the upright, several upper frames set below the inlet, an upper folding cover fixed to the bottom of the upper frame, a lower frame fixed to the bottom of the upper folding cover, a lower folding cover fixed to the bottom of the lower frame, a frame rod fixed inside the upper frame, an upper support rod fixed at all four ends inside the lower frame, several lower support rods rotatably installed at all four ends of the frame rod, and the lower end of the lower support rod is rotatably connected to the upper support rod, and several crossbars rotatably installed on the upper support rod.

[0008] The discharge assembly is located at the lower end of the telescopic assembly and is used to prevent material accumulation.

[0009] Preferably, the discharge assembly includes a discharge bin fixed to the bottom of the telescopic assembly, a screen installed inside the discharge bin, guide rods fixed at the four corners of the bottom of the screen, and limit seats fixed at the four corners of the discharge bin. The guide rods and limit seats are slidably installed through each other. A spring is sleeved on the guide rod. Motors are installed on the outer walls of both ends of the discharge bin, and cams are fixed at the output ends of the motors.

[0010] Preferably, the discharge assembly further includes a cover plate hinged to the front end of the discharge hopper, and lock heads rotatably installed on both sides of the front surface of the discharge hopper.

[0011] Preferably, the feeding mechanism further includes a mounting frame fixed to the rear end of the discharging component, with several mounting holes opened at both ends of the frame.

[0012] Preferably, a conveyor belt is fixed to the rear end of the upright frame, a support is fixed to the rear end of the conveyor belt, and a hopper is fixed to the upper part of the inside of the support.

[0013] Preferably, the lower folding cover is fixed to the upper frame adjacent below, and the lower end of the crossbar is rotatably connected to the frame bar adjacent below.

[0014] Beneficial effects

[0015] This utility model provides a biomass boiler feeding device. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] (1) When the height is adjusted, the telescopic component can be folded and stretched to cooperate with it, so that the material conveyed by the conveyor belt can enter the discharge component through the telescopic component and then enter the boiler; and, by setting a skeleton composed of frame rods, upper support rods, lower support rods and cross rods in the upper frame, upper folding cover, lower frame and lower folding cover respectively, the overall strength of the telescopic component is improved, which can effectively resist bending and deformation during the stress process, so that it is not easily damaged when bearing long-term load, and the overall service life is extended.

[0018] (2) When the material falls into the screen in the feeding hopper, the output end of the cover plate drives the cam to rotate. The cam moves the screen upward and then the pressure of the spring rebound drives the screen downward. By controlling the screen to vibrate up and down repeatedly, the material above is vibrated to avoid accumulation and bridging or blockage. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the feeding mechanism in this utility model;

[0021] Figure 3 This is a cross-sectional view of the discharge component in this utility model;

[0022] Figure 4 This is an exploded view of the telescopic component in this utility model;

[0023] Figure 5 This is a partial structural diagram of the telescopic component in this utility model.

[0024] In the diagram: 1. Upright frame; 2. Feeding mechanism; 21. Telescopic assembly; 211. Inlet; 212. Upper frame; 213. Upper folding cover; 214. Lower frame; 215. Lower folding cover; 216. Frame rod; 217. Upper support rod; 218. Lower support rod; 219. Crossbar; 22. Discharge assembly; 221. Discharge bin; 222. Screen; 223. Guide rod; 224. Limiting seat; 225. Spring; 226. Motor; 227. Cam; 228. Cover plate; 229. Lock head; 23. Mounting bracket; 24. Mounting hole; 3. Conveyor belt; 4. Support frame; 5. Bin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Please see Figure 1-5 This utility model provides a technical solution for a biomass boiler feeding device: a biomass boiler feeding device includes a frame 1, on which a feeding mechanism 2 is provided for controlling material feeding. The feeding mechanism 2 includes:

[0027] The telescopic assembly 21 includes an inlet 211 fixed to the front of the upper end of the upright 1, several upper frames 212 arranged below the inlet 211, an upper folding cover 213 fixed to the bottom of the upper frame 212, a lower frame 214 fixed to the bottom of the upper folding cover 213, a lower folding cover 215 fixed to the bottom of the lower frame 214, a frame rod 216 fixed inside the upper frame 212, an upper support rod 217 fixed at all four ends inside the lower frame 214, several lower support rods 218 rotatably installed at all four ends of the frame rod 216, and the lower end of the lower support rod 218 is rotatably connected to the upper support rod 217, and several crossbars 219 rotatably installed on the upper support rod 217.

[0028] The discharge assembly 22 is located at the lower end of the telescopic assembly 21 and is used to prevent material accumulation.

[0029] In this embodiment, when the height of 22 is adjusted, the telescopic component 21 can be folded and stretched to cooperate with it, so that the material conveyed by the conveyor belt 3 can enter the discharge component 22 through the telescopic component 21 and then enter the boiler; and by setting a skeleton composed of frame rods 216, upper support rods 217, lower support rods 218 and crossbars 219 in the upper frame 212, upper folding cover 213, lower frame 214 and lower folding cover 215 respectively, the overall strength of the telescopic component 21 is improved, which can effectively resist bending and deformation during the stress process, making it less prone to damage when bearing long-term loads and extending the overall service life.

[0030] Specifically, the discharge assembly 22 includes a discharge bin 221 fixed to the bottom of the telescopic assembly 21, a screen 222 installed inside the discharge bin 221, guide rods 223 fixed at the four corners of the bottom of the screen 222, and limit seats 224 fixed at the four corners inside the discharge bin 221. The guide rods 223 and the limit seats 224 are slidably installed through each other. A spring 225 is sleeved on the guide rods 223. Motors 226 are installed on the outer walls of both ends of the discharge bin 221. A cam 227 is fixed at the output end of the motor 226.

[0031] In this embodiment, when the material falls onto the screen 222 in the feeding hopper 221, the output end of the cover plate 228 drives the cam 227 to rotate. The cam 227 moves the screen 222 upward, and then the pressure of the spring 225 pushes the screen 222 downward. By controlling the screen 222 to vibrate up and down repeatedly, the material above is vibrated to avoid accumulation and bridging or blockage.

[0032] Specifically, the discharge assembly 22 also includes a cover plate 228 hinged to the front end of the discharge bin 221, and lock heads 229 rotatably mounted on both sides of the front surface of the discharge bin 221.

[0033] In this embodiment, when a large amount of material accumulates on the screen 222, the membrane shell is cleaned out by opening the cover plate 228, and then the cover plate 228 is closed and fixed by rotating the lock head 229.

[0034] Specifically, the feeding mechanism 2 also includes a mounting bracket 23 fixed at the rear end of the discharging component 22, and several mounting holes 24 opened at both ends of the upright frame 1.

[0035] In this embodiment, the discharge assembly 22 can be fixed on the mounting hole 24 of the upright frame 1 by the mounting bracket 23, so that the discharge assembly 22 can be fixed at an appropriate height according to the height of the boiler feed inlet.

[0036] Specifically, a conveyor belt 3 is fixed to the rear end of the upright frame 1, a support 4 is fixed to the rear end of the conveyor belt 3, and a hopper 5 is fixed to the upper part of the inside of the support 4.

[0037] In this embodiment, the material is poured into the hopper 5, then conveyed to the telescopic component 21 by the conveyor belt 3, and then falls into the discharge component 22 for screening before falling into the boiler.

[0038] Specifically, the lower folding cover 215 is fixed to the upper frame 212 adjacent below, and the lower end of the crossbar 219 is rotatably connected to the frame bar 216 adjacent below.

[0039] The working principle and usage process of this utility model are as follows: First, the discharge component 22 can be fixed on the mounting hole 24 of the upright frame 1 through the mounting bracket 23, thereby fixing the discharge component 22 at an appropriate height according to the height of the boiler feed inlet; when the height of 22 is adjusted, the telescopic component 21 can be folded and stretched to cooperate with it, so that the material conveyed by the conveyor belt 3 can enter the discharge component 22 through the telescopic component 21 and then enter the boiler; and, by setting a frame composed of frame rods 216, upper support rods 217, lower support rods 218 and crossbars 219 in the upper frame 212, upper folding cover 213, lower frame 214 and lower folding cover 215 respectively, the overall strength of the telescopic component 21 is improved, which can effectively resist bending and deformation during the stress process, making it less prone to damage when bearing long-term loads and extending the overall service life;

[0040] Then, the material is poured into the hopper 5 and conveyed to the telescopic component 21 by the conveyor belt 3. The material then falls onto the screen 222 in the discharge hopper 221. The output end of the cover plate 228 drives the cam 227 to rotate. The cam 227 moves the screen 222 upward. The pressure of the spring 225 pushes the screen 222 downward. By controlling the screen 222 to vibrate up and down repeatedly, the material above is vibrated to avoid accumulation and bridging or blockage.

[0041] Finally, when there is a lot of material accumulated on the screen 222, the membrane shell is cleaned out by opening the cover plate 228, and then the cover plate 228 is closed and fixed by turning the lock head 229.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass boiler feeding device, comprising a vertical frame (1), characterized in that: The upright frame (1) is equipped with a feeding mechanism (2) for controlling material feeding. The feeding mechanism (2) includes: The telescopic assembly (21) includes an inlet (211) fixed at the front of the upper end of the upright (1), several upper frames (212) arranged below the inlet (211), an upper folding cover (213) fixed at the bottom of the upper frame (212), a lower frame (214) fixed at the bottom of the upper folding cover (213), a lower folding cover (215) fixed at the bottom of the lower frame (214), a frame rod (216) fixed inside the upper frame (212), an upper support rod (217) fixed at all four ends inside the lower frame (214), several lower support rods (218) rotatably installed at all four ends of the frame rod (216), and the lower end of the lower support rod (218) is rotatably connected to the upper support rod (217), and several crossbars (219) rotatably installed on the upper support rod (217). The discharge assembly (22) is located at the lower end of the telescopic assembly (21) and is used to prevent material accumulation.

2. The biomass boiler feeding device according to claim 1, characterized in that: The discharge assembly (22) includes a discharge bin (221) fixed to the bottom of the telescopic assembly (21), a screen (222) installed inside the discharge bin (221), guide rods (223) fixed at the four corners of the bottom of the screen (222), and limiting seats (224) fixed at the four corners of the discharge bin (221). The guide rods (223) and the limiting seats (224) are slidably installed through each other. A spring (225) is sleeved on the guide rods (223). A motor (226) is installed on the outer wall of both ends of the discharge bin (221), and a cam (227) is fixed at the output end of the motor (226).

3. The biomass boiler feeding device according to claim 2, characterized in that: The discharge assembly (22) also includes a cover plate (228) hinged to the front end of the discharge bin (221) and lock heads (229) rotatably installed on both sides of the front end surface of the discharge bin (221).

4. The biomass boiler feeding device according to claim 1, characterized in that: The feeding mechanism (2) also includes a mounting bracket (23) fixed at the rear end of the discharging component (22), and several mounting holes (24) are opened at both ends of the upright frame (1).

5. A biomass boiler feeding device according to claim 1, characterized in that: The rear end of the upright frame (1) is fixed with a conveyor belt (3), the rear end of the conveyor belt (3) is fixed with a support (4), and the upper end of the support (4) is fixed with a hopper (5).

6. A biomass boiler feeding device according to claim 1, characterized in that: The lower folding cover (215) is fixed to the upper frame (212) below, and the lower end of the crossbar (219) is rotatably connected to the frame bar (216) below.

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