Turnover type fire grate

Abstract

The utility model discloses a turnover type fire grate which comprises a fixed grate sheet, a turnover grate sheet and a driving mechanism, and the fixed grate sheet is installed in a gasification furnace; a rotating shaft is arranged on the overturning row piece, one end of the rotating shaft is rotationally connected with the fixed row piece, the other end of the rotating shaft extends out of the gasifier, and the rotating shaft and the fixed row piece are located in the same plane; one end of the rotating shaft outside the gasifier is in transmission connection with an output shaft of the driving mechanism. The device has the technical effects that the fixed row piece, the turnover row piece and the driving mechanism are matched for use, and the driving mechanism drives the turnover row piece to rotate and reset at a certain angle, so that accumulated ash and coke blocks smoothly fall off from a gap between the turnover row piece and the fixed row piece, and ash close to a furnace wall can fall off from small holes in the fixed row piece; meanwhile, under the stirring of the overturning row pieces, the materials move and become relatively loose, so that the air permeability is improved, the possibility of a coking phenomenon is reduced, and the running time of the gasification furnace is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of biomass processing equipment technology, specifically to a tilting grate. Background Technology

[0002] The grate is a key component of a biomass pyrolysis gasifier, crucial for its stable operation. The grate's structure must ensure uniform distribution of the gasifying agent and smooth discharge of ash and residual carbon. The material must be resistant to burn-off and thermal deformation. However, currently used grates in pyrolysis gasifiers generally cannot supply oxygen for combustion, requiring manual turning or functional modifications that are complex to manufacture. Therefore, a new type of grate is needed that can supply oxygen for combustion, automatically dispose of ash, is inexpensive, and is easy to assemble and produce, to solve the existing problems. Utility Model Content

[0003] Therefore, this utility model provides a tilting grate to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] According to a first aspect of the present invention, a tilting grate includes fixed grate bars, tilting grate bars and a driving mechanism, wherein the fixed grate bars are installed inside a gasifier.

[0006] The flip-up plate is provided with a rotating shaft. One end of the rotating shaft is rotatably connected to the fixed plate, and the other end of the rotating shaft extends to the outside of the gasifier. The rotating shaft and the fixed plate are located in the same plane.

[0007] The end of the rotating shaft located outside the gasifier is connected to the output shaft of the drive mechanism.

[0008] Furthermore, the number of flip-over panels is multiple, and the multiple flip-over panels are arranged at equal intervals.

[0009] Furthermore, a bearing is provided at one end of the rotating shaft that is connected to the fixed plate, and the bearing is mounted on the fixed plate.

[0010] Furthermore, it also includes a rack, which is horizontally arranged outside the gasifier in a direction perpendicular to the rotating shaft. The drive mechanism is connected to the rack and is used to drive the rack to reciprocate in the horizontal direction.

[0011] A gear is provided at one end of the rotating shaft extending outside the gasifier, and the gear meshes with the rack.

[0012] Furthermore, the flip angle of the flipped arrangement is from -60° to 60°.

[0013] Furthermore, it also includes a support frame, which is disposed outside the gasifier, and the rack is slidably disposed on the support frame.

[0014] Furthermore, the drive mechanism includes a motor and a reducer, wherein the output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rack and pinion drive.

[0015] Furthermore, the fixed plate is provided with a plurality of small holes, which penetrate the fixed plate.

[0016] Furthermore, the small holes are round holes, and a plurality of the small holes are evenly arranged on the fixed plate.

[0017] This invention has the following advantages: the fixed plate, the rotating plate, and the drive mechanism work together. The drive mechanism drives the rotating plate to rotate and reset at a certain angle, allowing accumulated ash and coke to fall smoothly through the gap between the rotating and fixed plates. Ash and slag near the furnace wall can fall through the small holes on the fixed plate. At the same time, the material moves under the movement of the rotating plate, becoming relatively loose, increasing the air permeability, reducing the possibility of coking, and extending the operating time of the gasifier. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of a tilting grate provided for some embodiments of the present invention.

[0021] Figure 2 This is a schematic diagram of a reciprocating drive mechanism for a tilting grate, provided for some embodiments of the present invention.

[0022] In the figure: 1. Fixed grate bar, 2. Reversible grate bar, 3. Small hole, 4. Bearing, 5. Support, 6. Driving mechanism, 7. Gear, 8. Rack. Specific embodiments

[0023] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figure 1 and Figure 2 shown, a reversible grate in the first aspect embodiment of the present utility model includes a fixed grate bar 1, a reversible grate bar 2 and a driving mechanism 6. The fixed grate bar 1 is installed in the gasifier;

[0026] The reversible grate bar 2 is provided with a rotating shaft. One end of the rotating shaft is rotatably connected to the fixed grate bar 1, and the other end of the rotating shaft extends outside the gasifier. The rotating shaft and the fixed grate bar 1 are in the same plane;

[0027] One end of the rotating shaft located outside the gasifier is in transmission connection with the output shaft of the driving mechanism 6.

[0028] In this embodiment, it should be noted that, as Figure 1 shown, the reversible grate bar 2 has a "丰" - shaped structure. Specifically, the reversible grate bar 2 includes a rotating shaft and multiple bar strips. The multiple bar strips are arranged parallel to each other in sequence along the length direction of the rotating shaft. The rotating shaft and the multiple bar strips together form a "丰" - shaped structure. The fixed grate bar 1 is provided with a receiving hole for receiving the reversible grate bar 2. The receiving hole is "丰" - shaped and matches the reversible grate bar 2. The reversible grate bar 2 is located in the receiving hole.

[0029] The fixed grate bar 1 is circular. The fixed grate bar 1 is provided with multiple small holes 3. The small holes 3 penetrate through the fixed grate bar 1. The small holes 3 are round holes. The multiple small holes 3 are evenly arranged on the fixed grate bar 1. The small holes 3 on the fixed grate bar 1 have the functions of ventilation and ash discharge. Ventilation can promote the combustion of biomass materials, and fine ash powder can fall into the ash bin from the circular small holes 3.

[0030] The flipping angle of the reversible grate bar 2 is from - 60° to 60°. Specifically, by driving the rotating shaft to rotate forward or backward by a certain angle by the driving mechanism 6, the reversible grate bar 2 can perform 60° forward and reverse flipping and resetting.

[0031] The technical effects achieved in this embodiment are as follows: the fixed plate 1, the rotating plate 2, and the driving mechanism 6 work together. The driving mechanism 6 drives the rotating plate 2 to rotate and reset at a certain angle, allowing ash and coke to fall smoothly from the gap between the rotating plate 2 and the fixed plate 1. Ash and slag near the furnace wall can fall through the small holes on the fixed plate 1. At the same time, the material moves under the movement of the rotating plate 2, becoming relatively loose, increasing the air permeability, reducing the possibility of coking, and extending the operating time of the gasifier. The overall structure is simple and easy to process, manufacture, and assemble.

[0032] Example 2

[0033] like Figure 1 and Figure 2 As shown, this embodiment provides another type of tilting grate, whose structure includes all the contents of embodiment 1. Only the different parts are described below.

[0034] In this embodiment, there are multiple flip-out panels 2, which are arranged at equal intervals. Each flip-out panel 2 is provided with a rotating shaft and is rotatably connected to the fixed panel 1.

[0035] In this embodiment, it should be noted that a bearing 4 is provided at one end of the rotating shaft connected to the fixed plate 1. The bearing 4 is installed on the fixed plate 1. Specifically, the rotating shaft is fixedly connected to the inner ring of the bearing 4, and the outer ring of the bearing 4 is connected to the fixed plate 1. The rotating shaft is rotatably connected to the fixed plate through the bearing 4.

[0036] The technical effect achieved by this embodiment is that the number of flip-out sheet 2 is multiple, which can better flip and move the material during use, ensuring that the material in each place can be moved and become loose, thereby improving air permeability.

[0037] Example 3

[0038] like Figure 1 and Figure 2 As shown, this embodiment provides another type of tilting grate, whose structure includes all the contents of embodiment 1. Only the different parts are described below.

[0039] In this embodiment, a rack 8 is also included. The rack 8 is horizontally arranged outside the gasifier in a direction perpendicular to the rotation axis. The drive mechanism 6 is connected to the rack 8 in a transmission manner. The drive mechanism 6 is used to drive the rack 8 to reciprocate in the horizontal direction.

[0040] A gear 7 is provided at one end of the rotating shaft that extends outside the gasifier, and the gear 7 meshes with the rack 8.

[0041] In this embodiment, it should be noted that a support 5 is also included. The support 5 is set outside the gasifier, and the rack 8 is slidably set on the support 5. The support 5 is provided with a first limiting block and a second limiting block. The first limiting block and the second limiting block are respectively set along the length direction of the rack 8. The first limiting block and the second limiting block are respectively used to limit the maximum movement position of the two ends of the rack 8. In use, by adjusting the position of the first limiting block and the second limiting block, the reciprocating movement distance of the rack 8 can be controlled, thereby controlling the flipping angle of the flipping plate 2.

[0042] Furthermore, the drive mechanism 6 is mounted on the bracket 5. The drive mechanism 6 includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rack 8. In use, the forward and reverse rotation of the flip plate 2 can be controlled by controlling the forward and reverse rotation of the motor.

[0043] The technical effect achieved by this embodiment is as follows: the motor and reducer can drive the rack 8 to reciprocate in the horizontal direction, the gear 7 meshes with the rack 8, driving the gear 7 to rotate, and thus the rotating plate 2 can perform 60° clockwise and counterclockwise rotation and reset. During this process, the ash layer on the grate is disturbed, achieving the purpose of ash removal and loosening of the ash layer, thereby ensuring the full combustion of materials in the gasifier and reducing coking.

[0044] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0045] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A tilting grate, characterized in that, It includes a fixed plate arrangement (1), a flip plate arrangement (2), and a drive mechanism (6), wherein the fixed plate arrangement (1) is installed inside the gasifier; The flip-up plate (2) is provided with a rotating shaft. One end of the rotating shaft is rotatably connected to the fixed plate (1), and the other end of the rotating shaft extends to the outside of the gasifier. The rotating shaft and the fixed plate (1) are located in the same plane. The end of the rotating shaft located outside the gasifier is connected to the output shaft of the drive mechanism (6) for transmission.

2. The tilting grate according to claim 1, characterized in that, The number of the flip-out trays (2) is multiple, and the multiple flip-out trays (2) are arranged at equal intervals.

3. The tilting grate according to claim 1, characterized in that, The end of the rotating shaft connected to the fixed plate (1) is provided with a bearing (4), and the bearing (4) is installed on the fixed plate (1).

4. A tilting grate according to claim 1, characterized in that, It also includes a rack (8), which is horizontally arranged outside the gasifier in a direction perpendicular to the rotating shaft. The drive mechanism (6) is connected to the rack (8) in a transmission manner. The drive mechanism (6) is used to drive the rack (8) to reciprocate in the horizontal direction. A gear (7) is provided at one end of the rotating shaft extending outside the gasifier, and the gear (7) meshes with the rack (8).

5. A tilting grate according to claim 4, characterized in that, The flip angle of the flip-out arrangement (2) is -60° to 60°.

6. A tilting grate according to claim 4, characterized in that, It also includes a support (5), which is disposed outside the gasifier, and the rack (8) is slidably disposed on the support (5).

7. A tilting grate according to claim 4, characterized in that, The drive mechanism (6) includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rack (8).

8. A tilting grate according to claim 1, characterized in that, The fixed plate (1) is provided with a plurality of small holes (3), and the small holes (3) penetrate the fixed plate (1).

9. A tilting grate according to claim 8, characterized in that, The small hole (3) is a round hole, and multiple small holes (3) are evenly arranged on the fixed plate (1).

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