Biomass fuel gasification furnace

Abstract

The utility model discloses a biomass fuel gasification furnace, which belongs to the technical field of gasification furnaces and comprises a furnace body and a furnace door, a fire grate component is mounted in the furnace body and comprises a fire grate body, a gear is rotatably arranged below the fire grate body, and a rotating shaft of the gear penetrates through the fire grate body and is vertically fixed with a connecting strip. The furnace door comprises a baffle, a vertical strip-shaped hole is formed in the baffle, a sliding block is arranged in the strip-shaped hole in a sliding mode, strip-shaped plates used for sealing the strip-shaped hole are fixed to the two sides of the sliding block, and a second air cylinder is fixed to the strip-shaped plate located on the outer side. An output shaft of the second air cylinder penetrates through the two strip-shaped plates and the sliding block to be fixedly connected with a horizontal rack, and the rack is used for driving the gear to rotate. According to the gasification furnace, the first air cylinder is started to control the rack to ascend to correspond to the gear, and the second air cylinder is started to control the stirring rod to rotate, so that biomass fuel in the furnace body can be uniformly laid and prevented from being accumulated at one position.

Description

Technical Field

[0001] The utility model belongs to the technical field of gasifiers, and in particular relates to a biomass fuel gasifier. Background Art

[0002] The straw gas produced by the biomass fuel gas stove is a green new energy with strong vitality. Since the raw materials of plant gas are crop straw, forest waste, edible fungus residue, cattle and sheep manure and all combustible materials, it is an inexhaustible renewable resource.

[0003] Biomass fuel gasifiers are generally loaded through a Jiaolong conveyor. However, due to the fixed position of the Jiaolong conveyor when discharging, it is easy for the biomass fuel to accumulate in one place, which is not conducive to combustion. At the same time, if the biomass fuel in the gasifier accumulates too much, it will make the interior relatively tight, which is not conducive to the entry of oxygen and easily leads to incomplete combustion. In order to solve the above problems, a biomass fuel gasifier is now provided.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a biomass fuel gasification furnace. By starting the first cylinder to control the rack to rise to correspond to the gear, and by starting the second cylinder to control the rotation of the stirring rod, the biomass fuel in the furnace body can be evenly laid to avoid its accumulation in one place. When the gasification furnace is not fully burned, the support ring can be lifted by starting the first cylinder to lift it, so that part of the biomass fuel is lifted up, which facilitates oxygen to enter the interior of the biomass fuel and promotes combustion.

[0006] To achieve the above objectives, the utility model proposes a biomass fuel gasification furnace, which includes a furnace body, a side wall of the furnace body having an ash cleaning port near the bottom, a furnace door for closing the ash cleaning port, and a grate assembly installed in the furnace body.

[0007] The grate assembly comprises a grate body, a gear is rotatably arranged below the grate body, a rotating shaft of the gear passes through the grate body and is vertically fixed with a connecting bar, and a stirring rod is fixed at the upper end of the connecting bar.

[0008] The furnace door includes a baffle plate, which is provided with a vertical strip hole, a sliding block is slidably arranged in the strip hole, strip plates for closing the strip hole are fixed on both sides of the sliding block, a second cylinder is fixed on the outer strip plate, the output shaft of the second cylinder passes through the two strip plates and the sliding block and is fixedly connected with a horizontal rack, and the rack is used to drive the gear to rotate.

[0009] Furthermore, a support sheet is fixed above the gear, and a plurality of support rings of different sizes are fixed on the connecting bar.

[0010] Furthermore, one side of the furnace body is connected to a fire outlet, and the other side is connected to a dragon conveyor and a blasting device.

[0011] Furthermore, a smoke exhaust pipe is provided above the furnace body.

[0012] Furthermore, a feeding funnel is connected to the upper side of the Jiaolong conveyor.

[0013] Furthermore, the blowing device includes a blower, and the blower is connected to a first air outlet pipe and a second air outlet pipe.

[0014] Furthermore, the second air outlet pipe faces the fire outlet, and the first air outlet pipe is located below the grate assembly.

[0015] Furthermore, symmetrically distributed L-shaped support blocks are fixed on the furnace body, and two L-shaped support blocks are respectively located on both sides of the ash cleaning port.

[0016] Limiting rods are fixed on both sides of the baffle.

[0017] Furthermore, a first cylinder for controlling the lifting and lowering of the sliding block is fixed in the strip-shaped hole.

[0018] The biomass fuel gasifier proposed by the utility model can bring the following beneficial effects:

[0019] 1. The utility model gasifier starts the first cylinder to control the rack to rise to correspond to the gear, and starts the second cylinder to control the stirring rod to rotate so that the biomass fuel in the furnace body can be evenly laid to avoid accumulation in one place;

[0020] 2. When the gasifier of the utility model is not burning fully, the first cylinder can be started to control the support ring to lift up, so that part of the biomass fuel is lifted up, which facilitates oxygen to enter the biomass fuel and promotes combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 The utility model is a schematic structural diagram of a biomass fuel gasification furnace.

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of a biomass fuel gasifier according to the utility model, taken from the first perspective.

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of a biomass fuel gasifier according to the utility model from a second viewing angle.

[0025] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0026] Figure 5 for Figure 2 Enlarged structural diagram at B in the middle.

[0027] Figure 6 It is a structural schematic diagram of the grate assembly of the utility model. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0033] The embodiment of the utility model provides a biomass fuel gasification furnace, the gasification furnace comprises a furnace body 1, such as Figure 1 As shown, a fire outlet 2 is provided on one side of the furnace body 1, a Jiaolong conveyor 4 and a blast device 5 are provided on the other side, a smoke exhaust pipe 3 is provided on the top of the furnace body 1, a feed funnel 41 is provided on the upper side of the Jiaolong conveyor 4, a ash cleaning port 11 is provided on the side wall of the furnace body 1 near the bottom, the gasification furnace also includes a furnace door 6 for closing the ash cleaning port 11, and a grate assembly 7 is installed in the furnace body 1.

[0034] The blowing device 5 includes a blower 51, such as Figure 2 As shown, the blower 51 is connected to a first air outlet pipe 52 and a second air outlet pipe 53 , the second air outlet pipe 53 faces the fire outlet 2 , and the first air outlet pipe 52 is located below the grate assembly 7 .

[0035] Symmetrically distributed L-shaped support blocks 12 are fixed to the furnace body 1 , and two L-shaped support blocks 12 are respectively located on both sides of the ash cleaning port 11 .

[0036] The furnace door 6 includes a baffle 61 slightly larger than the ash cleaning port 11. Figure 3 , Figure 4 As shown, limiting rods 62 are fixed on both sides of the baffle 61. When the two limiting rods 62 are respectively inserted into the two L-shaped support blocks 12, the dust cleaning port 11 is closed.

[0037] A vertical strip hole 63 is opened on the baffle 61, and a sliding block 64 is slidably arranged in the strip hole 63. Strip plates 65 for closing the strip hole 63 are fixed on both sides of the sliding block 64. A first cylinder (not shown in the figure) for controlling the lifting and lowering of the sliding block 64 is fixed in the strip hole 63, and a second cylinder 66 is fixed on the outer strip plate 65. The output shaft of the second cylinder 66 passes through the two strip plates 65 and the sliding block 64 and is fixedly connected to a horizontal rack 67.

[0038] The grate assembly 7 includes a grate body 71, such as Figure 5 , Figure 6As shown, a gear 72 is rotatably provided at the bottom of the grate body 71, and the rack 67 is used to drive the gear 72 to rotate. A support plate 73 is fixed above the gear 72. The rotating shaft of the gear 72 passes through the grate body 71 and is vertically fixed with a connecting bar 74. A stirring rod 75 is fixed at the upper end of the connecting bar 74, and a number of support rings 76 of different sizes are fixed on the connecting bar 74.

[0039] When in use, the first cylinder is started to control the rack 67 to rise to correspond to the gear 72, and the biomass fuel is transported to the furnace body 1 through the dragon conveyor 4. The second cylinder 66 is started to control the rack 67 to engage with the gear 72 to rotate the gear 72, and further drive the stirring rod 75 to rotate so that the biomass fuel in the furnace body 1 can be evenly laid to avoid its accumulation in one place. The biomass fuel is ignited, and the blower 51 is started to supply oxygen to the furnace body 1 to promote combustion. During the combustion process, the gas in the second air outlet pipe 53 blows the flame toward the fire outlet 2. When the combustion is not complete, the first cylinder can be started to control the rack 67 to lift, and further lift the support plate 73 and the support ring 76, so that part of the biomass fuel is lifted, which facilitates the entry of oxygen into the biomass fuel and promotes combustion.

[0040] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0041] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A biomass fuel gasifier, comprising a furnace body (1), characterized in that: A ash cleaning port (11) is provided on a side wall of the furnace body (1) near the bottom, the gasifier further comprising a furnace door (6) for closing the ash cleaning port (11), and a grate assembly (7) is installed in the furnace body (1); The grate assembly (7) comprises a grate body (71), a gear (72) is rotatably provided below the grate body (71), a rotating shaft of the gear (72) passes through the grate body (71) and is vertically fixed with a connecting bar (74), and a stirring rod (75) is fixed at the upper end of the connecting bar (74); The furnace door (6) comprises a baffle (61), a vertical strip hole (63) is formed on the baffle (61), a sliding block (64) is slidably arranged in the strip hole (63), strip plates (65) for closing the strip hole (63) are fixed on both sides of the sliding block (64), a second cylinder (66) is fixed on the outer strip plate (65), an output shaft of the second cylinder (66) passes through the two strip plates (65) and the sliding block (64), and is fixedly connected to a horizontal rack (67), and the rack (67) is used to drive the gear (72) to rotate.

2. The biomass fuel gasifier according to claim 1, characterized in that: A support plate (73) is fixed above the gear (72), and a plurality of support rings (76) of different sizes are fixed on the connecting strip (74).

3. The biomass fuel gasifier according to claim 2, characterized in that: One side of the furnace body (1) is connected to a fire outlet (2), and the other side is connected to a dragon conveyor (4) and a blast device (5).

4. The biomass fuel gasifier according to claim 3, characterized in that: A smoke exhaust pipe (3) is provided above the furnace body (1).

5. The biomass fuel gasifier according to claim 4, characterized in that: A feeding funnel (41) is provided on the upper side of the dragon conveyor (4).

6. The biomass fuel gasifier according to claim 5, characterized in that: The air blowing device (5) comprises an air blower (51), and the air blower (51) is connected to a first air outlet pipe (52) and a second air outlet pipe (53).

7. The biomass fuel gasifier according to claim 6, characterized in that: The second air outlet pipe (53) faces the fire outlet (2), and the first air outlet pipe (52) is located below the grate assembly (7).

8. The biomass fuel gasification furnace according to claim 7, characterized in that: The furnace body (1) is fixed with symmetrically distributed L-shaped support blocks (12), and the two L-shaped support blocks (12) are respectively located on both sides of the ash cleaning port (11); Limiting rods (62) are fixed on both sides of the baffle (61).

9. The biomass fuel gasifier according to claim 8, characterized in that: A first cylinder for controlling the lifting and lowering of the sliding block (64) is fixed in the strip-shaped hole (63).

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