A fuel substitute dispensing device

Abstract

The utility model relates to the technical field of blanking device, especially a blanking device of alternative fuel, including blanking hopper and the spiral conveying mechanism that is located blanking hopper below, still including anti -blocking buffer piece, material processing cavity, screening subassembly and drive assembly, the anti -blocking buffer piece is located inside blanking hopper for dispersing material, the material processing cavity is connected and arranged between blanking hopper and spiral conveying mechanism, constitutes the transition channel of material conveying from blanking hopper to spiral conveying mechanism, the screening subassembly is located inside material processing cavity, the utility model discloses a material is unloaded from blanking hopper, and the anti -blocking buffer piece in blanking hopper interior disperses the material in blanking hopper, reduces the occurrence of material caking phenomenon, and drive assembly drives screening subassembly and screens the material exported in blanking hopper, thereby screens out alternative fuel and the ash soil impurity in it, optimizes the component of alternative fuel, improves the combustion efficiency after subsequent into combustion system.

Description

Technical Field

[0001] This utility model relates to the field of material feeding and transfer technology, and in particular to a feeding device for alternative fuels. Background Technology

[0002] In the production processes of cement production and waste incineration power generation, alternative fuels such as waste plastics, rubber tires, biomass waste, and construction waste-derived fuels have become an important supplement to traditional fossil fuels due to their low cost and significant environmental benefits. The efficient utilization of alternative fuels depends on stable feeding and pretreatment processes. However, their complex physical characteristics, such as irregular shape, mixed composition, presence of ash and soil impurities, and tendency to entangle and clump, lead to common problems such as material blockage and impurities affecting combustion efficiency during the feeding process, thus restricting the application of alternative fuels.

[0003] In existing technologies, an inverted triangular buffer is set inside the feeding device to break up agglomerated materials using its angular structure, which alleviates the material blockage problem to a certain extent and further improves the efficiency of alternative fuel transportation. However, the alternative fuel still contains ash, soil and other impurities. After entering the combustion system with the fuel, it will reduce the effective calorific value of the fuel and form ash and slag in the furnace, affecting the heat exchange efficiency and even aggravating equipment wear.

[0004] Therefore, based on the above situation, we designed an alternative fuel feeding device to solve the above problems. Utility Model Content

[0005] This invention provides a feeding device for alternative fuels to solve the problems in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A feeding device for alternative fuel includes a feeding hopper and a screw conveyor mechanism located below the feeding hopper. It also includes an anti-clogging buffer, a material handling chamber, a screening assembly, and a drive assembly. The anti-clogging buffer is located inside the feeding hopper to disperse the material. The material handling chamber is connected between the feeding hopper and the screw conveyor mechanism, forming a transition channel for material transport from the feeding hopper to the screw conveyor mechanism. The screening assembly is located inside the material handling chamber to perform screening operations on the material output after initial dispersion by the anti-clogging buffer, separating the material from ash and soil impurities. The drive assembly is connected to the screening assembly and drives the screening assembly to perform screening motion.

[0008] Preferably, the screening assembly includes a screen hinged to the inner wall of the material processing chamber and an impurity guide plate located below the screen and inclined thereon. The impurity guide plate is disposed on the inner wall of the material processing chamber, and the material processing chamber has an outlet for discharging impurities.

[0009] Preferably, the drive assembly includes a rotating rod rotatably connected inside the material handling chamber and a cam disposed on the rotating rod. The cam is located below the screen, and one end of the rotating rod extends to the outside of the material handling chamber and is connected to a first motor.

[0010] Preferably, the number of screening components is at least two sets, and the at least two sets of screening components are distributed sequentially along the material conveying direction inside the material processing chamber, and each of the two rotating rods is connected to a rotating wheel, and the two rotating wheels are connected by belt drive.

[0011] Preferably, the anti-blocking buffer includes a support frame rotatably connected inside the hopper and a plurality of buffer parts disposed on the support frame, wherein a second motor is connected to the support frame.

[0012] Preferably, an impurity collection box for collecting impurities is provided at the outlet of the material processing chamber.

[0013] The beneficial effects of this utility model are: by feeding materials from the hopper, the anti-blocking buffer inside the hopper disperses the materials in the hopper, reducing the occurrence of material agglomeration.

[0014] The drive component drives the screening component to screen the material output from the hopper, thereby separating the alternative fuel from its internal ash and soil impurities, optimizing the composition of the alternative fuel, and improving the combustion efficiency after it enters the combustion system. Attached Figure Description

[0015] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0017] Figure 2 A front view structural schematic diagram provided for this utility model;

[0018] Figure 3 A cross-sectional schematic diagram provided for this utility model;

[0019] Figure 4 This is a schematic diagram of the screening component in this utility model;

[0020] Figure 5 This is a schematic diagram of the anti-blocking buffer component in this utility model.

[0021] In the diagram, 1. Feed hopper; 2. Screw conveyor mechanism; 3. Anti-clogging buffer; 31. Support frame; 32. Buffer section; 4. Material handling chamber; 5. Screening assembly; 51. Screen; 52. Impurity guide plate; 6. Drive assembly; 61. Rotating rod; 62. Cam; 7. Outlet; 8. First motor; 9. Rotary wheel; 10. Belt; 11. Second motor; 12. Impurity collection box. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0023] Reference Figures 1-5 As shown, a feeding device for alternative fuel includes a feeding hopper 1. Crushed alternative fuel is fed into the feeding hopper 1 from its input end. Due to the material characteristics of the alternative fuel, it may clump or become entangled. To prevent blockage within the feeding hopper 1, an anti-blocking buffer 3 is installed inside the feeding hopper 1. When the alternative fuel falls, it comes into contact with the anti-blocking buffer 3 and is dispersed by it. The dispersed alternative fuel continues to fall into a material processing chamber 4 connected to the output end of the feeding hopper 1. Inside the chamber, a screening component 5 is installed to process the alternative fuel before it enters the screw conveyor mechanism 2. By activating the drive component 6, which is connected to the screening component 5, the screening component 5 is driven to perform a screening action, separating the alternative fuel from ash and impurities, further optimizing the composition of the alternative fuel, and improving its combustion efficiency before entering the subsequent combustion system.

[0024] Reference Figure 3 , Figure 4 As shown, the screening component 5 further includes a screen 51 hinged to the inner wall of the material processing chamber 4 and an impurity guide plate 52 located below the screen 51 and inclined. In actual use, in order to improve the efficiency of the alternative fuel falling, the screen 51 can be set in an inclined shape, and the inclination direction of the screen 51 and the impurity guide plate 52 is opposite. The screen 51 is inclined towards the inside of the material processing chamber 4, while the impurity guide plate 52 is inclined downward towards the outside of the material processing chamber 4 inside the material processing chamber 4. When the alternative fuel is on the screen 51, it can fall effectively into the screw conveyor 2, while the screened impurities fall onto the impurity guide plate 52 and are discharged from the outlet 7 opened on the material processing chamber 4 along the impurity guide plate 52, thereby realizing the separation between the alternative fuel and the ash and soil impurities.

[0025] The screening components 5 are at least two sets, and the at least two sets of screening components 5 are distributed sequentially along the material conveying direction inside the material processing chamber 4. When the alternative fuel enters the material processing chamber 4, it will pass through the two sets of screening components 5 in sequence for screening. A single screening may result in incomplete screening due to problems such as material accumulation and impurities clogging the screen 51. The at least two sets of screening components 5 work in sequence, which can perform a second screening of the material after screening by the previous screening component 5, reduce the impurity residue rate, and further improve the screening efficiency of alternative fuel.

[0026] Reference Figure 3 As shown, further, the drive assembly 6 includes a rotating rod 61 rotatably connected inside the material handling chamber 4 and a cam 62 disposed on the rotating rod 61. The cam 62 is located below the screen 51, and one end of the rotating rod 61 extends to the outside of the material handling chamber 4 and is connected to a first motor 8. By starting the first motor 8, the first motor 8 drives the rotating rod 61 to rotate, and the rotating rod 61 drives the cam 62 to rotate. During the rotation of the cam 62, for example, when its long axis is in a vertical state, it abuts against the screen 51, causing the screen 51 to rotate upward along the hinge axis. When the long axis of the cam 62 is in a vertical state, it abuts against the screen 51, causing the screen 51 to rotate upward along the hinge axis. As the shaft gradually tilts and becomes transverse, the free end of the screen 51 gradually falls and vibrates. As this process continues, the screen 51 vibrates continuously, effectively screening the alternative fuel and ash impurities on it. In order to simultaneously link at least two sets of screening components 5, a rotating wheel 9 is connected to the rotating rod 61 of at least two sets of screening components 5. The rotating wheels 9 are connected by a belt 10. When the first motor 8 drives one of the rotating rods 61 to rotate, it causes the rotating wheel 9 on it to rotate. Then the belt 10 rotates and drives the other rotating wheels 9 to rotate, saving space and cost.

[0027] In order to effectively collect impurities, an impurity collection box 12 is provided at the outlet 7 of the material processing chamber 4 when impurities come out from the outlet 7. The impurities enter the interior of the impurity collection box 12 and an outlet is provided on the impurity collection box 12. When it is necessary to pour out the impurities, the outlet can be opened to release the impurities.

[0028] Reference Figure 5As shown, further, after the material feeding is completed, some impurities will remain on the anti-clogging buffer 3 due to the nature of the alternative fuel. In order to facilitate cleaning and reduce the adhesion of impurities on the anti-clogging buffer 3, the anti-clogging buffer 3 includes a support frame 31 rotatably connected to the inside of the feeding hopper 1 and multiple buffer parts 32 provided on the support frame 31. The buffer parts 32 are similar to the triangular buffers in the prior art. The multiple buffer parts 32 can be distributed at different heights and angles along the support frame 31, with the pointed ends facing upwards, forming a multi-layer buffer barrier. When the material falls from above the feeding hopper 1, it will contact and collide with each buffer part 32 in sequence, dispersing the impact force and falling speed of the material layer by layer. Then, a second motor 11 is connected to the support frame 31. By starting the second motor 11, the second motor 11 drives the support frame 31 to rotate, which in turn drives the multiple buffer parts 32 to rotate. The impurities or alternative fuel falling on the surface of the buffer parts 32 will fall off due to the rotation of the anti-clogging buffer 3.

Claims

1. A feeding device for alternative fuel, comprising a feeding hopper (1) and a screw conveyor mechanism (2) disposed below the feeding hopper (1), characterized in that, Also includes; Anti-blocking buffer (3), the anti-blocking buffer (3) is provided inside the feed hopper (1) to disperse the material; Material handling chamber (4) is connected between the hopper (1) and the screw conveyor (2), forming a transition channel for material to be conveyed from the hopper (1) to the screw conveyor (2); Screening component (5), the screening component (5) is located inside the material processing chamber (4) to perform screening operation on the material output after initial dispersion by the anti-blocking buffer (3) so as to separate the material from the ash and soil impurities; The drive assembly (6) is connected to the screening assembly (5) for driving the screening assembly (5) to perform screening motion.

2. The alternative fuel feeding device according to claim 1, characterized in that, The screening assembly (5) includes a screen (51) hinged to the inner wall of the material processing chamber (4) and an impurity guide plate (52) located below the screen (51) and inclined. The impurity guide plate (52) is provided on the inner wall of the material processing chamber (4), and the material processing chamber (4) is provided with an outlet (7) for discharging impurities.

3. The alternative fuel feeding device according to claim 1, characterized in that, The drive assembly (6) includes a rotating rod (61) rotatably connected inside the material handling chamber (4) and a cam (62) provided on the rotating rod (61). The cam (62) is located below the screen (51). One end of the rotating rod (61) extends to the outside of the material handling chamber (4) and is connected to a first motor (8).

4. The alternative fuel feeding device according to claim 1, characterized in that, The number of screening components (5) is at least two sets. At least two sets of screening components (5) are distributed sequentially in the material handling chamber (4) along the material conveying direction. Both rotating rods (61) are connected to rotating wheels (9). The two rotating wheels (9) are connected by a belt (10).

5. The alternative fuel feeding device according to claim 1, characterized in that, The anti-blocking buffer (3) includes a support frame (31) rotatably connected inside the hopper (1) and multiple buffer parts (32) provided on the support frame (31), and a second motor (11) is connected on the support frame (31).

6. The alternative fuel feeding device according to claim 2, characterized in that, An impurity collection box (12) for collecting impurities is provided at the outlet (7) of the material handling chamber (4).

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