Boiler feeding device for biomass power generation

Abstract

The utility model relates to the technical field of boiler feeding, and discloses a boiler feeding device for biomass power generation, which comprises a base, a feeding mechanism and an impurity removal mechanism, the impurity removal mechanism comprises an impurity removal groove formed in the right end of the base, the section of the impurity removal groove is semicircular, a bearing seat is arranged at the top of the impurity removal groove and rotationally connected with a second rotating shaft, the axis of the second rotating shaft and the axis of the impurity removal groove are collinear, an impurity removal rod is arranged on the outer wall of the second rotating shaft, and a receding notch is formed in the right side of the impurity removal groove. According to the boiler feeding device for biomass power generation, the impurity removal rods which rotate and are arranged in rows are arranged in the impurity removal groove, so that the impurity removal rods drive fuel to move to complete the feeding action, meanwhile, the gaps of the impurity removal rods can achieve screening treatment on the fuel, broken stones are left at the bottom of the impurity removal groove, and therefore the fuel can be separated from the bottom of the impurity removal groove. The boiler is protected, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler feeding, in particular to a boiler feeding device for biomass power generation. Background Art

[0002] Biomass power generation is the use of biomass energy to generate electricity. It is a type of renewable energy power generation, including direct combustion of agricultural and forestry waste power generation, agricultural and forestry waste gasification power generation, garbage incineration power generation, landfill gas power generation, and biogas power generation.

[0003] Since biomass power generation usually uses straw or wood chips for combustion, in order to prevent the impurities contained inside from affecting the normal combustion of the boiler, the fuel needs to be filtered. This results in an extra step before combustion, and the operation is more cumbersome, so it needs to be improved. Utility Model Content

[0004] The utility model provides a boiler feeding device for biomass power generation, which solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A boiler feeding device for biomass power generation, comprising a base, a feeding mechanism and a debris removal mechanism;

[0007] The feeding mechanism includes a vertical plate arranged at the middle and left end of the base, the upper part of the vertical plate is rotatably connected to the first rotating shaft, the middle part of the first rotating shaft is fixedly connected to the conveying roller, the conveying rollers on both sides are connected to the two sides of the conveyor belt, and the side of the base is provided with a material storage component for feeding the material to the conveyor belt;

[0008] The impurity removing mechanism comprises an impurity removing groove arranged at the right end of the base, the cross-section of the impurity removing groove is semicircular, a bearing seat is arranged on the top of the impurity removing groove, a second rotating shaft is rotatably connected to the bearing seat, the axis line of the second rotating shaft is arranged colinearly with the axis line of the impurity removing groove, an impurity removing rod is arranged on the outer wall of the impurity removing groove, and a clearance gap is arranged on the right side of the impurity removing groove.

[0009] As a preferred technical solution of the utility model, a feeding plate is provided on the side of the clearance gap away from the impurity removal groove.

[0010] As a preferred technical solution of the utility model, a first drive motor is arranged in the middle of the vertical plate, the output shaft of the first drive motor is fixedly connected to the first bevel gear, the first bevel gear is meshedly connected to the second bevel gear, and the second bevel gear is fixedly connected to the end of the first rotating shaft.

[0011] As a preferred technical solution of the utility model, the material storage assembly includes a support frame fixedly connected to the base, a material storage box is arranged on the support frame, and a discharge port is arranged at the bottom of the material storage box.

[0012] As an optimal technical solution of the utility model, a second drive motor is arranged on the side of the impurity removal groove, the output shaft of the second drive motor is fixedly connected to the third bevel gear, the third bevel gear is meshedly connected to the fourth bevel gear, and the fourth bevel gear is fixedly connected to the end of the second rotating shaft.

[0013] As a preferred technical solution of the utility model, a support rod is provided at one end of the impurity removal trough close to the conveyor belt, and a material guide plate cooperating with the conveyor belt is provided on the support rod.

[0014] The utility model has the following benefits:

[0015] The utility model is applicable to a boiler feeding device for biomass power generation. Rotating and row-arranged impurity removing rods are arranged in an impurity removing groove, so that the impurity removing rods drive the fuel to move and complete the feeding action. At the same time, the gaps between the impurity removing rods can also realize the processing of fuel screening, so that crushed stones are left at the bottom of the impurity removing groove, thereby protecting the boiler and improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a structural schematic diagram of a boiler feeding device for biomass power generation.

[0018] Figure 2 It is a front view of a boiler feeding device for biomass power generation.

[0019] Figure 3 The present invention is a structural schematic diagram of a feeding mechanism in a boiler feeding device for biomass power generation.

[0020] Figure 4 The present invention is a right side view of a feeding mechanism in a boiler feeding device for biomass power generation.

[0021] Figure 5 The present invention is a structural schematic diagram of a de-impurity mechanism in a boiler feeding device for biomass power generation.

[0022] In the figure: 1. base; 2. feeding mechanism; 3. impurity removal mechanism; 4. vertical plate; 5. first rotating shaft; 6. conveying roller; 7. conveyor belt; 8. first driving motor; 9. first bevel gear; 10. second bevel gear; 11. material storage assembly; 12. support frame; 13. discharge port; 14. material storage box; 15. impurity removal trough; 16. second driving motor; 17. third bevel gear; 18. fourth bevel gear; 19. second rotating shaft; 20. bearing seat; 21. impurity removal rod; 22. clearance gap; 23. feeding plate; 24. guide plate; 25. support rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In one embodiment, see Figure 1-Figure 5 , a feeding device for a boiler for biomass power generation, comprising a base 1, a feeding mechanism 2 and a cleaning mechanism 3;

[0025] The feeding mechanism 2 includes a vertical plate 4 arranged in the middle and left end of the base 1. The base 1 is arranged horizontally. The vertical plates 4 are arranged on both the front and rear sides of the base 1. The upper end of the vertical plate 4 is rotatably connected to the first rotating shaft 5. That is to say, the first rotating shaft 5 is arranged in the front and rear directions above the middle and the left end of the base 1, and a conveying roller 6 is arranged in the middle of the first rotating shaft 5. The left and right conveying rollers 6 are connected to the left and right sides of the conveyor belt 7, so that the conveyor belt 7 can rotate clockwise, so that the materials falling on the conveyor belt 7 can move to the right, and a material storage component 11 is arranged on the rear side of the base 1, and the material storage component 11 can continuously add materials to the conveyor belt 7;

[0026] The impurity removal mechanism 3 includes an impurity removal groove 15 arranged at the right end of the base 1. The impurity removal groove 15 is a semicircular structure. The top of the impurity removal groove 15 is flat and open. Bearing seats 20 are arranged at the front and rear ends of the upper end of the impurity removal groove 15. The bearing seats 20 are rotatably connected to the second rotating shaft 19 arranged in the front and rear directions. The axis of the second rotating shaft 19 is arranged colinearly with the axis of the impurity removal groove 15, and the outer wall of the second rotating shaft 19 is provided with impurity removal rods 21. The impurity removal rods 21 are arranged in a linear array along the axis of the second rotating shaft 19 in a row, and the entire row of impurity removal rods 21 are arranged in a circle around the second rotating shaft 19. A circular array allows the impurity removing rod 21 to form several surfaces to rotate around the second rotating shaft 19. The end of the impurity removing rod 21 away from the center of the impurity removing groove 15 is close to the inner wall of the impurity removing groove 15, and a clearance gap 22 is set above the right side wall of the impurity removing groove 15. The bottom of the clearance gap 22 is lower than the second rotating shaft 19. Therefore, the material will fall through the clearance gap 22 after moving to the right with the inner wall of the impurity removing groove 15. A feeding plate 23 is set on the right side of the clearance gap 22. The feeding plate 23 is tilted to the lower right, so that the material will slide along the feeding plate 23 after falling from the clearance gap 22.

[0027] In one case of this embodiment, a first drive motor 8 is provided in the middle of the vertical plate 4, and the output shaft of the first drive motor 8 is fixedly connected to the first bevel gear 9, the first bevel gear 9 is meshedly connected to the second bevel gear 10, and the second bevel gear 10 is fixedly connected to the end of the first rotating shaft 5. The first drive motor 8 is provided in the middle of the front vertical plate 4, and the first drive motor 8 rotates the first rotating shaft 5 through gear transmission, so that the conveyor belt 7 rotates clockwise to achieve the feeding effect.

[0028] In one case of this embodiment, the material storage assembly 11 includes a support frame 12 fixedly connected to the base 1, a material storage box 14 is arranged on the support frame 12, and a discharge port 13 is arranged at the bottom of the material storage box 14. The support frame 12 is an L-shaped structure, the vertical plate of the support frame 12 is fixed to the left side of the rear side of the base 1, the upper end of the support frame 12 is fixedly connected to the material storage box 14, the top of the material storage box 14 is open, and a discharge port 13 is arranged at the bottom of the material storage box 14, and a throttle valve is arranged inside the discharge port 13, and the throttle valve can be used to control whether the discharge port 13 is opened, and the throttle valve can also control the size of the discharge port 13 opening, thereby controlling the feeding speed.

[0029] In one case of this embodiment, a second drive motor 16 is provided on the side of the impurity removal groove 15, and the output shaft of the second drive motor 16 is fixedly connected to the third bevel gear 17, the third bevel gear 17 is meshedly connected to the fourth bevel gear 18, and the fourth bevel gear 18 is fixedly connected to the end of the second rotating shaft 19. The second drive motor 16 is arranged at the front end of the impurity removal groove 15, and the second drive motor 16 rotates the second rotating shaft 19 counterclockwise through gear transmission, so that the impurity removal rod 21 rotates counterclockwise around the axis of the second rotating shaft 19.

[0030] In one case of this embodiment, a support rod 25 is provided at one end of the impurity removal groove 15 close to the conveyor belt 7, and a guide plate 24 is provided on the support rod 25 to cooperate with the conveyor belt 7. The height of the right end of the conveyor belt 7 is higher than the height of the left end of the impurity removal groove 15, that is, the guide plate 24 is inclined to the lower right, and the right end of the guide plate 24 will be placed on the right side above the top of the left side of the impurity removal groove 15, and because the impurity removal rod 21 rotates around the second rotating shaft 19, the guide plate 24 will not interfere with the impurity removal rod 21 because the right end of the guide plate 24 is higher.

[0031] A sufficient amount of fuel is added to the storage box 14, and the first drive motor 8 and the second drive motor 16 are started. The first drive motor 8 drives the conveyor belt 7 to rotate clockwise, and the second drive motor 16 drives the impurity removal rod 21 to rotate counterclockwise around the second rotating shaft 19. At this time, the discharge port 13 is opened, and the fuel slowly falls to the left end of the conveyor belt 7 through the discharge port 13. The fuel moves to the right with the conveyor belt 7, and the fuel falls into the impurity removal groove 15 through the guide plate 24. At this time, the impurity removal rod 21 will drive the fuel to move to the lower right along the inner wall of the impurity removal groove 15, and the gravel and dust in the fuel will pass through the impurity removal rod 21 and remain at the bottom of the impurity removal groove 15. Only fuel such as wood chips will move to the right with the impurity removal rod 21, and the wood chips will eventually move to the feed plate 23 through the clearance gap 22, and slide into the boiler with the feed plate 23 for combustion.

[0032] The utility model is applicable to a boiler feeding device for biomass power generation. Rotating and rowed impurity removing rods 21 are arranged in an impurity removing groove 15, so that the impurity removing rods 21 drive the fuel to move and complete the feeding action. At the same time, the gaps between the impurity removing rods 21 can also realize the processing of fuel screening, so that crushed stones are left at the bottom of the impurity removing groove 15, thereby protecting the boiler and improving the feeding efficiency.

[0033] During the implementation of this embodiment, the base 1 is stably placed on the ground, and the right end of the feed plate 23 is placed at the feed port of the boiler. At this time, the fuel sliding off the feed plate 23 will freely fall into the filter for combustion.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A boiler feeding device for biomass power generation, characterized in that: It comprises a base (1), a feeding mechanism (2) and a debris removal mechanism (3); The feeding mechanism (2) comprises a vertical plate (4) arranged at the middle and left end of the base (1); the upper part of the vertical plate (4) is rotatably connected to a first rotating shaft (5); the middle part of the first rotating shaft (5) is fixedly connected to a conveying roller (6); the conveying rollers (6) on both sides are connected to both sides of a conveyor belt (7); and a material storage component (11) for feeding materials to the conveyor belt (7) is arranged on the side of the base (1); The impurity removal mechanism (3) comprises an impurity removal groove (15) arranged at the right end of the base (1), the cross section of the impurity removal groove (15) is semicircular, a bearing seat (20) is arranged at the top of the impurity removal groove (15), a second rotating shaft (19) is rotatably connected to the bearing seat (20), the axis of the second rotating shaft (19) is arranged colinearly with the axis of the impurity removal groove (15), an impurity removal rod (21) is arranged on the outer wall of the second rotating shaft (19), and a clearance notch (22) is arranged on the right side of the impurity removal groove (15).

2. A biomass power generation boiler feeding device according to claim 1, characterized in that: A feeding plate (23) is provided on the side of the clearance gap (22) away from the impurity removal groove (15).

3. A biomass power generation boiler feeding device according to claim 1, characterized in that: A first drive motor (8) is disposed in the middle of the vertical plate (4); an output shaft of the first drive motor (8) is fixedly connected to a first bevel gear (9); the first bevel gear (9) is meshedly connected to a second bevel gear (10); and the second bevel gear (10) is fixedly connected to the end of the first rotating shaft (5).

4. A biomass power generation boiler feeding device according to claim 1, characterized in that: The material storage assembly (11) comprises a support frame (12) fixedly connected to the base (1), a material storage box (14) is arranged on the support frame (12), and a discharge port (13) is arranged at the bottom of the material storage box (14).

5. A biomass power generation boiler feeding device according to claim 1, characterized in that: A second drive motor (16) is disposed on the side of the impurity removal groove (15); an output shaft of the second drive motor (16) is fixedly connected to a third bevel gear (17); the third bevel gear (17) is meshedly connected to a fourth bevel gear (18); and the fourth bevel gear (18) is fixedly connected to the end of the second rotating shaft (19).

6. A biomass power generation boiler feeding device according to claim 1, characterized in that: A support rod (25) is arranged at one end of the impurity removal trough (15) close to the conveyor belt (7), and a material guide plate (24) cooperating with the conveyor belt (7) is arranged on the support rod (25).

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