Biomass ash bucket

Abstract

The utility model provides a biomass ash bucket which comprises an ash bucket body, at least two layers of flap valves are fixedly arranged at an outlet of the ash bucket body, an ash tray assembly is fixedly arranged at the output ends of the flap valves, the ash tray assembly comprises a cylinder fixedly arranged at the outlet ends of the flap valves, and a tray is fixedly arranged at the lower end of the cylinder. The ash tray is movably fixed on the tray, a limiting device is fixedly arranged on the tray, and a sealing ring is fixedly arranged on one side, facing the tray, of the lower end face of the barrel body. The multi-layer flap valve is fixedly arranged at the outlet of the ash bucket, on one hand, opening and closing of the valve plate can be determined by means of the dead weight of ash accumulated on the valve plate, the ash cleaning process is completed by means of the dead weight of the ash, high-temperature smoke can be effectively prevented from escaping through the multi-layer flap valve, and the sealing performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a biomass ash hopper. Background Art

[0002] At present, only a gate valve is provided at the outlet of the biomass ash hopper as an ash valve. The use of the gate valve requires manual timing to pull the rod to complete the ash cleaning action. The use of the gate valve makes the ash hopper poorly sealed, and smoke escapes, polluting the environment.

[0003] At present, some of the ash hoppers used in biomass heating stoves only have the task of catching the fallen ashes. Although they have a simple structure, they do not have the ability to seal and there is a safety hazard of smoke backflow. Some stoves with sealing functions have too complicated connecting rod mechanisms. After long-term use, the connecting rod mechanisms will have problems such as poor movement and poor sealing. At the same time, the ash hopper that receives the ashes cannot completely collect the ashes, which brings inconvenience to daily use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art. The utility model proposes a biomass ash hopper, which avoids manual ash cleaning and strengthens the sealing performance of the ash cleaning process.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a biomass ash hopper, including an ash hopper, at least two layers of flap valves are fixedly arranged at the outlet of the ash hopper, and an ash pan assembly is fixedly arranged at the output end of the flap valve, the ash pan assembly includes a cylinder fixedly arranged at the outlet end of the flap valve, a tray is fixedly arranged at the lower end of the cylinder, the ash pan is movably fixed on the tray, a limiting device is fixedly arranged on the tray, and a sealing ring is fixedly arranged on the lower end of the cylinder facing the tray.

[0006] Furthermore, the tray is fixed below the cylinder by at least two fixing blocks, one end of the fixing block is fixed to the outer edge surface of the cylinder, and the other end is fixed on the outer edge surface of the tray.

[0007] Furthermore, the limiting device includes a limiting rod, which passes through the fixed block and is movably fixed under the tray. A plurality of limiting blocks are fixedly arranged on the limiting rod along its axial direction, and the spacing between adjacent limiting blocks is the same. A plurality of slots are opened on the tray, and a plurality of limiting blocks are pressed against the ash tray under the slots.

[0008] Furthermore, a torsion spring is arranged on the limit rod, one end of the torsion spring is fixed to the outer edge surface of the limit rod, and the other end is fixed to the inner side of the fixing block, and a clamping block is fixedly arranged on the outer side of the fixing block.

[0009] Furthermore, the outer diameter of the ash pan is smaller than the inner diameter of the cylinder, the sealing ring is fixedly arranged on the inner wall of the cylinder, and the diameter of the ash pan is the same as the diameter of the sealing ring.

[0010] Furthermore, a handle is fixedly provided on the outer edge surface of the ash tray, and the distance from the sealing ring to the bottom of the cylinder is not greater than the distance from the handle to the top side of the ash tray.

[0011] Compared with the prior art, the beneficial effects of the utility model include:

[0012] 1) By fixing a multi-layer flap valve at the outlet of the ash hopper, the valve plate can be opened and closed by the deadweight of the ash accumulated on the valve plate, and the ash cleaning process can be completed by the deadweight of the ash. In addition, the multi-layer flap valve can effectively prevent the escape of high-temperature flue gas and has better sealing performance;

[0013] 2) An ash pan is fixedly arranged under the multi-layer flap valve to complete the collection of ash. The ash pan is sealed with the cylinder as a whole, so that the ash falling into the ash pan has sufficient time to settle, and the ash can be completely collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0015] Figure 1 The overall cross-sectional structure of the biomass ash hopper is schematically shown;

[0016] Figure 2 The schematic diagram shows the partial enlarged structure of the side of the ash tray assembly;

[0017] Figure 3 The overall structure of the ash tray assembly is schematically shown;

[0018] Figure 4 The overall structure of the limit rod is schematically shown.

[0019] Numbers in the figure: 1-ash hopper, 2-flap valve, 3-ash tray assembly, 4-cylinder, 5-tray, 6-ash tray, 7-sealing ring, 8-limit rod, 9-limit block, 10-block, 11-fixed block, 12-handle. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0021] like Figure 1 As shown, a biomass ash hopper comprises an ash hopper 1, at the outlet of which at least two layers of flap valves 2 are fixedly arranged. In this embodiment, two layers of flap valves 2 are fixedly arranged at the outlet of the ash hopper 1, and the two layers of flap valves 2 are connected end to end as a whole, and the inlet end thereof is fixed to the outlet end of the aforementioned ash hopper 1 by a flange, and an ash pan assembly 3 is fixedly arranged at the outlet end of the aforementioned flap valve 2 for receiving ash falling from the ash hopper 1 into the flap valve 2 and then into the ash pan assembly 3.

[0022] A double-layer flap valve 2 is placed at the outlet of the ash hopper 1. Compared with the conventional plug-in valve, the plug-in valve needs to be manually cleaned by pulling the rod at regular intervals, while the flap valve 2 can use the deadweight of the ash accumulated on the valve plate to determine the opening and closing of the valve plate, and the cleaning process is completed by relying on the deadweight of the ash. In addition, the setting of the flap valve 2 can effectively prevent the escape of high-temperature flue gas, and the sealing performance is better. The design of the double-layer flap valve 2 further improves the sealing performance.

[0023] The following is a description of the ash tray assembly 3 disposed under the flap valve 2. Figure 2-3 As shown, the ash tray assembly 3 includes a cylinder 4 fixedly arranged at the outlet end of the flap valve 2, a tray 5 fixedly arranged at the lower end of the cylinder 4, an ash tray 6 movably fixed on the tray 5, and a limiting device fixedly arranged under the tray 5 for pressing the ash tray 6 to the lower end of the cylinder 4, and a sealing ring 7 fixedly arranged on the side of the lower end of the cylinder 4 facing the tray 5 to form a sealed environment when the ash tray 6 is placed in the cylinder 4.

[0024] It is worth noting that the outer diameter of the ash pan 6 is smaller than the inner diameter of the cylinder 4, so that the ash pan 6 can be embedded in the cylinder 4, and the sealing ring 7 is fixedly arranged on the inner wall of the cylinder 4, and the diameter of the ash pan 6 is the same as the diameter of the sealing ring 7, so that the ash pan 6 can be embedded in the cylinder 4, and the gap formed by the ash pan 6 and the cylinder 4 can be closed by the sealing ring 7 to prevent the smoke of the ashes falling into the ash pan 6 from leaking out, and to avoid the impact of the ashes on the environment based on the time the ashes are deposited in the ash pan 6.

[0025] A handle 12 is fixedly provided on the outer edge surface of the ash tray 6, which is used to pull the ash tray 6 out from the sub-tray 5 by means of the handle when the limit block 9 does not press the ash tray 6 inside the cylinder 4, and the distance from the sealing ring 7 to the bottom of the cylinder 4 is not greater than the distance from the handle 12 to the top side of the ash tray 6, thereby avoiding the influence of the setting of the handle on the seal between the cylinder 4 and the ash tray 6.

[0026] The tray 5 is fixed to the bottom of the cylinder 4 by at least two fixing blocks 11, one end of the fixing block 11 is fixed to the outer edge of the cylinder 4, and the other end is fixed to the outer edge of the tray 5, and the fixing block 11 extends a certain length from the bottom of the tray 5. Figure 4 As shown, the limiting device includes a limiting rod 8, the portion of the limiting rod 8 extending from the fixed block 11 passes through the fixed block 11 and is movably fixed under the tray 5, and a plurality of limiting blocks 9 are fixedly arranged along the axial direction of the limiting rod 8, and the spacing between adjacent limiting blocks 9 is the same. A plurality of slots are opened on the tray 5, and the plurality of limiting blocks 9 are abutted under the ash tray 6 through the slots, so as to tightly fix the ash tray 6 to the lower end of the cylinder 4, and receive and collect the ash falling from the flap valve 2.

[0027] Regarding the setting of the limit rod 8, a torsion spring is also arranged on the limit rod 8, one end of the torsion spring is fixed to the outer edge surface of the limit rod 8, and the other end is fixed to the inner side of the fixed block 11. When the limit rod 8 rotates, the torsion spring is compressed due to the rotation, and the limit rod 8 is bent on the side outside the fixed block 11, and a clamping block 10 is fixedly arranged on the outer side of the fixed block 11 to block the rotation tendency of the limit rod 8, so that the limit block 9 on the limit rod 8 can push the ash tray 6 into the cylinder 4.

[0028] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A biomass ash hopper, characterized in that: The utility model comprises an ash hopper (1), at least two layers of flap valves (2) are fixedly arranged at the outlet of the ash hopper (1), an ash tray assembly (3) is fixedly arranged at the output end of the flap valve (2), the ash tray assembly (3) comprises a cylinder (4) fixedly arranged at the outlet end of the flap valve (2), a tray (5) is fixedly arranged at the lower end of the cylinder (4), the ash tray (6) is movably fixed on the tray (5), a limiting device is fixedly arranged on the tray (5), and a sealing ring (7) is fixedly arranged at the lower end of the cylinder (4) facing the tray (5).

2. The biomass ash hopper according to claim 1, characterized in that: The tray (5) is fixed below the cylinder (4) by at least two fixing blocks (11); one end of the fixing block (11) is fixed to the outer edge surface of the cylinder (4), and the other end is fixed on the outer edge surface of the tray (5).

3. The biomass ash hopper according to claim 2, characterized in that: The limiting device comprises a limiting rod (8), the limiting rod (8) passes through the fixing block (11) and is movably fixed under the tray (5), a plurality of limiting blocks (9) are fixedly arranged on the limiting rod (8) along its axial direction, and the spacing between adjacent limiting blocks (9) is the same, a plurality of slot holes are opened on the tray (5), and the plurality of limiting blocks (9) are abutted under the ash tray (6) through the slot holes.

4. The biomass ash hopper according to claim 3, characterized in that: A torsion spring is also provided on the limiting rod (8), one end of the torsion spring is fixed to the outer edge surface of the limiting rod (8), and the other end is fixed to the inner side of the fixing block (11), and a clamping block (10) is fixedly provided on the outer side of the fixing block (11).

5. The biomass ash hopper according to claim 1, characterized in that: The outer diameter of the ash tray (6) is smaller than the inner diameter of the cylinder (4); the sealing ring (7) is fixedly arranged on the inner wall of the cylinder (4); and the diameter of the ash tray (6) is the same as the diameter of the sealing ring (7).

6. The biomass ash hopper according to claim 4, characterized in that: A handle (12) is fixedly arranged on the outer edge surface of the ash tray (6), and the distance from the sealing ring (7) to the bottom of the cylinder (4) is not greater than the distance from the handle (12) to the top side of the ash tray (6).

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