Multifunctional ash bucket ash removal waste heat recovery device

Abstract

The invention discloses a multifunctional ash bucket ash removal waste heat recovery device which comprises a filter box body, a filter plate is installed in a filter layer in the filter box body, a filter body is arranged at the bottom of the filter plate, the filter body is provided with an adsorption grid, and the adsorption grid is provided with a thermal expansion deformation area; a guide plate is arranged at the position of the filter layer, a material receiving ash hopper is arranged in the ash hopper layer, a variable filter screen is arranged at the position of the material receiving ash hopper, a heat conduction component is arranged outside the material receiving ash hopper, and a transmission part for driving the variable filter screen to move is connected to the heat conduction component. The material receiving ash hopper at the bottom is separated from the cavity layer at the top, the thermal expansion area corresponds to the variable filter screen at the upper part of the material receiving ash hopper, so that an ash collecting area with a variable space is formed, and heat in ash is recycled under the matching action of the heat conduction part and the transmission part. And the deformed filter screen is shaken and deformed in the material receiving ash hopper, so that ash is prevented from being adhered to the position of the filter layer.

Description

Technical Field

[0001] The present invention relates to the technical field of boilers, and particularly to a multifunctional ash hopper ash cleaning and waste heat recovery device. Background Technique

[0002] A biomass boiler is a clean combustion device that uses biomass fuels such as straw, wood chips, and rice husks as the main energy source. As an environmental protection energy device, the biomass boiler adds biomass fuels such as straw to the fuel addition port position, and then through combustion treatment, not only disposes of the biomass fuels such as straw, but also makes full use of the generated heat. The generated heat is mixed with the smoke generated by combustion and enters the filtration treatment device through a pipeline. The ashes after combustion are collected in the ash hopper, and the heat is transmitted to the place of use through the pipeline.

[0003] The existing ash hopper installed at the filtration treatment device is located below the device. After the ash accumulates in the ash hopper, when cleaning the ash hopper, by adopting the method of mechanical vibration, the ashes on the filtration device are shaken off, or by the method of air cannon acting on the filtration device, so as to achieve the effect of cleaning the inside of the filtration device. However, the pipeline leading to the discharge above the filtration device and the opening through the ash hopper below cause the ashes mixed with heat to concentrate and fall back into the ash hopper, resulting in waste of heat. Moreover, after the ashes mixed with heat pass through, the air pressure and temperature in the ash hopper rise, causing the ashes in the ash hopper to float upward, thereby adhering to the surface of the filtration device and affecting the filtration of the smoke and ashes by the filtration device. For this reason, we propose a multifunctional ash hopper ash cleaning and waste heat recovery device. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional ash hopper ash cleaning and waste heat recovery device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A multifunctional ash hopper ash cleaning and waste heat recovery device, including a filtration box body. An inlet smoke pipe is installed on one side of the filtration box body, and an exhaust smoke pipe is installed on the other side of the filtration box body. It is characterized in that: the filtration box body is divided into three layers from top to bottom, which are a cavity layer, a filtration layer, and an ash hopper layer in sequence. Among them, the cavity layer is communicated with the exhaust smoke pipe, and the filtration layer is communicated with the inlet smoke pipe; a filter plate is installed in the filtration layer, a filter body is provided at the bottom of the filter plate, and the filter body is communicated with the inlet of the inlet smoke pipe. An adsorption grid is provided below the filter body, and two thermal expansion deformation areas are provided in the middle part of the adsorption grid; a guiding plate is provided on one side of the filtration layer, one end of the guiding plate leads to one side of the cavity layer, and one end of the filter body is communicated with the guiding plate; a receiving ash hopper corresponding to the thermal expansion deformation area is arranged in the ash hopper layer, and a deformation filter screen is provided at the inlet of the receiving ash hopper. A heat conduction component is arranged outside the receiving ash hopper, and both ends of the heat conduction component are distributed at the filter body. A transmission part for driving the deformation filter screen to move is connected to the heat conduction component.

[0006] Preferably, the filter body includes three groups of installation pipes, one end of the installation pipe is an inclined opening, and the inclined opening faces the cavity layer. A filter mesh bag is arranged on the installation pipe. The three groups of installation pipes are connected by a bracket, and the bracket is connected to the inner side wall of the filter layer.

[0007] Preferably, the guiding plate includes a semi-circular plate communicating with the cavity layer, and a notch adapted to the inclined opening is arranged at the lower part of the guiding plate.

[0008] Preferably, a track groove is installed at the entrance of the installation pipe, an installation ring slides in the track groove, and multiple curved plates are installed on the installation ring. The front end of the curved plate faces the center of the installation ring, and the rear end of the curved plate faces the inner wall of the filter mesh bag. Multiple connecting rods are installed outside the track groove, and the connecting rods are installed on the entrance of the installation pipe.

[0009] Preferably, a baffle connected to the inner wall of the ash hopper layer is arranged at the upper part of the material receiving ash hopper. A dismountable bottom plate is opened at the lower part of the material receiving ash hopper. A rectangular heat conduction frame body is arranged at the upper part of the material receiving ash hopper, and the lower part of the material receiving ash hopper is funnel-shaped. The heat conduction component includes a fixing piece arranged outside the rectangular heat conduction frame body. A moving piece is arranged at the bottom of the fixing piece. A gear belt is arranged outside the moving piece, and a receiving groove is arranged at the bottom of the moving piece. A driving motor is arranged at the bottom of the filter box body, and an output shaft of the driving motor passes through the ash hopper layer and is installed with a driving gear, and the driving gear meshes with the gear belt. A heat conduction air pipe is installed at the receiving groove, one end of the heat conduction air pipe is installed at the baffle, a recovery air pipe is connected to the heat conduction air pipe, and one end of the recovery air pipe communicates with a transverse pipe. Multiple pipe orifices inserted into the installation pipe are arranged on the transverse pipe.

[0010] Preferably, a compression capsule body is installed on the heat conduction air pipe, and multiple pressing bumps are connected to the moving piece.

[0011] Preferably, the transmission member includes a first bevel gear installed on the output shaft of the driving motor. A transmission rod is installed on the fixing piece. One end of the transmission rod is connected with a second bevel gear meshing with the first bevel gear. An elliptical plate is connected to the end of the transmission rod far from the second bevel gear. A jacking sphere adapted to the elliptical plate is arranged at the bottom of the variable-shaped filter net.

[0012] Preferably, the variable-shaped filter net is made of a malleable material, the variable-shaped filter net is recessed downward, the mesh holes on the variable-shaped filter net are distributed layer by layer, and the diameter of the mesh holes in each layer gradually decreases.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the present invention, three different filtering structures are provided in the filter layer, and through the arrangement of the guiding plate, the material receiving ash hopper at the bottom and the cavity layer at the top are separated. By setting the thermal expansion zone corresponding to the deformable filter net above the material receiving ash hopper, a collection ash area with variable space is formed. Under the combined action of the heat conduction component and the transmission component, on the one hand, the heat in the ash is recycled back into the filter body for recycling, and on the other hand, the deformable filter net is shaken and deformed in the material receiving ash hopper to prevent ash from adhering to the filter layer position, and at the same time, it is beneficial for the ash to fall into the ash hopper for collection.

[0015] In the present invention, the position of the filter body facing the smoke exhaust pipe is set as an inclined opening, so that the filtered smoke is discharged obliquely, reducing the influence of the smoke heat on the bottom ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the partial sectional structure of the filter box of the present invention;

[0018] Figure 3 is a schematic diagram of the structure after removing the filter box of the present invention;

[0019] Figure 4 is a schematic diagram of the structure at the filter layer and the ash hopper layer of the present invention;

[0020] Figure 5 is a schematic diagram of the filter body structure of the present invention;

[0021] Figure 6 is a schematic diagram of the structure at the curved plate of the present invention;

[0022] Figure 7 is a schematic diagram of the structure at the filter body and the material receiving ash hopper of the present invention;

[0023] Figure 8 is a schematic diagram of the assembled structure of the deformable filter net and the ash receiving funnel of the present invention;

[0024] Figure 9 is a schematic diagram of the structure at the deformable filter net and the heat conduction component of the present invention;

[0025] Figure 10 is a schematic diagram of the structure at the ash receiving funnel of the present invention;

[0026] Figure 11 is a schematic diagram of the structure at the deformable filter net of the present invention;

[0027] Figure 12 is a schematic diagram of the structure at the adsorption grid of the present invention;

[0028] Figure 13 of the present inventionFigure 9 Schematic diagram of the enlarged structure of area A in the middle

[0029] Figure 14 For the present invention Figure 9 Schematic diagram of the enlarged structure of area B in the middle

[0030] In the figure: 1 - Filter box; 2 - Filter plate; 3 - Filter body; 4 - Adsorption grid; 5 - Guide plate; 6 - Material receiving ash hopper; 7 - Deformed filter net; 8 - Heat conduction component; 9 - Transmission part; 11 - Smoke inlet pipe; 12 - Smoke exhaust pipe; 13 - Cavity layer; 14 - Filter layer; 15 - Ash hopper layer; 31 - Installation pipe; 32 - Inclined opening; 33 - Filter net bag; 34 - Bracket; 35 - Track groove; 36 - Installation ring; 37 - Curved plate; 38 - Connecting rod; 41 - Thermal expansion deformation area; 51 - Semi - arc plate; 52 - Notch; 61 - Baffle; 81 - Fixed piece; 82 - Movable piece; 83 - Gear belt; 84 - Driving motor; 85 - Driving gear; 86 - Receiving groove; 87 - Heat conduction gas pipe; 88 - Recovery gas pipe; 89 - Horizontal pipe; 91 - First helical gear; 92 - Transmission rod; 93 - Second helical gear; 94 - Elliptical plate; 95 - Lifting sphere; 821 - Pressing convex block; 871 - Compression capsule body. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] Please refer to Figures 1-14 , the present invention provides a technical solution: a multifunctional ash hopper ash cleaning and waste heat recovery device, including a filter box 1. The overall external of the filter box 1 is a frame structure, and its bottom is a columnar structure for support. A smoke inlet pipe 11 is installed on one side of the filter box 1. The installation surface of the smoke inlet pipe 11 is a flange surface. By aligning the installation surface with the smoke exhaust position of the biomass boiler, after the material is burned, the discharged heat and the burned smoke enter the filter box from the smoke inlet pipe 11. And a smoke exhaust pipe 12 is installed on the other side of the filter box 1. The filter box 1 is divided into three layers from top to bottom, namely a cavity layer 13, a filter layer 14 and an ash hopper layer 15 in sequence. Among them, the cavity layer 13 is communicated with the smoke exhaust pipe 12, and the filter layer 14 is communicated with the smoke inlet pipe 11. In this way, the smoke first enters the filter layer 14 for filtration. After filtration, the ash mixed in the smoke drops to the ash hopper layer 15, and the filtered smoke is discharged from the cavity layer 13 in the form of a heat - containing gas flow from the smoke exhaust pipe 12 to the use position.

[0033] A filter plate 2 is installed inside the filter layer 14. A filter body 3 is provided at the bottom of the filter plate 2, and the filter body 3 communicates with the inlet of the smoke inlet pipe 11. An adsorption grid 4 is provided at the lower part of the filter body 3, and a plurality of thermal expansion deformation zones 41 are provided in the middle part of the adsorption grid 4; preferably, there are two thermal expansion deformation zones 41 in this solution. A receiving ash hopper 6 corresponding to the thermal expansion deformation zone 41 is arranged in the ash hopper layer 15. A baffle 61 connected to the inner wall of the ash hopper layer 15 is provided at the upper part of the receiving ash hopper 6. In this way, a heat collection area is formed between the baffle 61, the outer wall of the receiving ash hopper 6 and the inner wall of the ash hopper layer 15. At the same time, the received ashes fall from the thermal expansion deformation zone 41 into the receiving ash hopper 6. A disassembly bottom plate is provided at the lower part of the receiving ash hopper 6, and the disassembly bottom plate is convenient to be removed from the bottom of the receiving ash hopper 6. When clearing the accumulated ashes inside the ash hopper, the disassembly bottom plate can be removed, so as to facilitate the cleaning of the ashes. A rectangular heat conduction frame body is provided at the upper part of the receiving ash hopper 6. The lower part of the receiving ash hopper 6 is funnel-shaped, and a deformation filter net 7 is provided at the inlet of the receiving ash hopper 6.

[0034] A guiding plate 5 is provided on one side of the filter layer 14. One end of the guiding plate 5 leads to one side of the cavity layer 13, and one end of the filter body 3 is connected to the guiding plate 5. The guiding plate 5 includes a semi-circular plate 51 communicating with the cavity layer 13, and a notch 52 adapted to the inclined opening 32 is provided at the lower part of the guiding plate 5.

[0035] A heat conduction component 8 is provided outside the receiving ash hopper 6, and both ends of the heat conduction component 8 are distributed at the filter body 3. A transmission member 9 for driving the deformation filter net 7 to move is connected to the heat conduction component 8.

[0036] The filter body 3 includes three groups of installation pipes 31. One end of each installation pipe 31 is an inclined opening 32, and the inclined opening 32 opens towards the cavity layer 13. Filter bags 33 can be arranged on the installation pipes 31. The three groups of installation pipes 31 are connected by a bracket 34, and the bracket 34 is connected to the inner side wall of the filter layer 14.

[0037] A track groove 35 is installed at the inlet of the installation pipe 31, and an installation ring 36 slides in the track groove 35. A plurality of curved plates 37 are installed on the installation ring 36. The front end of the curved plate 37 faces the center of the installation ring 36, and the rear end of the curved plate 37 faces the inner wall of the filter bag 33. A plurality of connecting rods 38 are installed outside the track groove 35, and the connecting rods 38 are installed at the inlet of the installation pipe 31.

[0038] The heat conduction component 8 includes a fixing piece 81 arranged outside the rectangular heat conduction frame body. A moving piece 82 is provided at the bottom of the fixing piece 81. A gear belt 83 is arranged outside the moving piece 82, and a receiving groove 86 is provided at the bottom of the moving piece 82. A driving motor 84 is provided at the bottom of the filter box body 1, and a driving gear 85 is installed on the output shaft of the driving motor 84 passing through the ash hopper layer 15. The driving gear 85 meshes with the gear belt 83. A heat conduction air pipe 87 is installed at the receiving groove 86. One end of the heat conduction air pipe 87 is installed at the baffle 61. A recovery air pipe 88 is connected to the heat conduction air pipe 87, and one end of the recovery air pipe 88 communicates with a transverse pipe 89. A plurality of pipe orifices inserted into the installation pipe 31 are provided on the transverse pipe 89.

[0039] A compression capsule 871 is installed on the heat conduction air pipe 87, and a plurality of pressing bumps 821 are connected to the moving piece 82.

[0040] The transmission member 9 includes a first bevel gear 91 installed on the output shaft of the driving motor 84. A transmission rod 92 is installed on the fixing piece 81. One end of the transmission rod 92 is connected with a second bevel gear 93 meshing with the first bevel gear 91. The end of the transmission rod 92 far from the second bevel gear 93 is connected with an elliptical plate 94. A jacking sphere 95 adapted to the elliptical plate 94 is provided at the bottom of the deformable filter net 7.

[0041] The deformable filter net 7 is made of a malleable material, and the deformable filter net 7 is recessed downward. The mesh holes on the deformable filter net 7 are distributed layer by layer, and the diameter of each layer of mesh holes gradually decreases.

[0042] During use, heat enters from the smoke inlet pipe 11, first contacts the inlet of the installation pipe 31 and then is filtered through the filter bag 33, so as to filter out the dust in the discharged smoke. Before the smoke enters, it first contacts the curved plate 37. Through the guiding action of the curved plate 37, the smoke is discharged to the filter bag 33, so as to facilitate the absorption and treatment of the smoke. Then, after the smoke drifts above the filter bag 33 and falls onto the filter plate 2, it falls back into the filter bag 33 for absorption, and then falls to the adsorption grid 4 at the bottom. Because the heat expansion deformation area 41 designed on the adsorption grid 4 expands downward under the influence of the heat conducted by the filter bag 33, it is convenient to contact the deformable filter net 7 at the bottom, so as to facilitate the discharge of the filtered smoke into the receiving ash hopper 6.

[0043] By setting the rotation speed and direction of the starting drive motor 84, under the power output of the drive motor 84, the drive gear 85 starts to drive the gear belt 83 to rotate, so that the moving piece 82 rotates outside the rectangular heat-conducting frame. Since the rectangular heat-conducting frame can absorb the heat in the ash, the heat can be quickly conducted into the heat-conducting air pipe 87 by the moving piece 82. Through the combined action of the heat-conducting air pipe 87, the recovery air pipe 88, the transverse pipe 89 and the pipe orifice, it is convenient to conduct the heat in the ash into the filter mesh bag 33 for reuse. At the same time, due to the combined action of the pressing bump 821 and the compression capsule 871 designed outside the moving piece 82, the heat-conducting air pipe 87 generates return hot steam with different air flow rates, so as to act together at both ends of the filter mesh bag 33, which is convenient to blow the ash to be absorbed in the filter mesh bag 33 to the inner wall of the bag for absorption.

[0044] In order to avoid the accumulation of ash at the absorption position, while the drive output shaft of the drive motor 84 rotates, it drives the first helical gear 91. Through the combined action of the first helical gear 91 and the second helical gear 93, the elliptical plate 94 intermittently contacts and jacks up the spherical body 95, so that the deformable filter net 7 changes upward or downward, and the space volume between the deformable filter net 7 and the thermal expansion deformation area 41 changes, which is convenient for the dust to fall and avoids the adhesion of dust.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Multifunctional ash hopper ash cleaning and waste heat recovery device, including a filter box body (1), a smoke inlet pipe (11) is installed on one side of the filter box body (1), and a smoke exhaust pipe (12) is installed on the other side of the filter box body (1), characterized in that: The inside of the filter box body (1) is divided into three layers, which are, from top to bottom, a cavity layer (13), a filter layer (14), and an ash hopper layer (15). Among them, the cavity layer (13) is communicated with the smoke exhaust pipe (12), and the filter layer (14) is communicated with the smoke inlet pipe (11). A filter plate (2) is installed in the filter layer (14). A filter body (3) is provided at the bottom of the filter plate (2), and the filter body (3) is communicated with the inlet of the smoke inlet pipe (11). An adsorption grid (4) is provided at the lower part of the filter body (3), and two thermal expansion deformation areas (41) are provided in the middle part of the adsorption grid (4). A guiding plate (5) is provided on one side of the filter layer (14). One end of the guiding plate (5) leads to one side of the cavity layer (13), and one end of the filter body (3) is communicated with the guiding plate (5). A receiving ash hopper (6) corresponding to the thermal expansion deformation area (41) is provided in the ash hopper layer (15). A deformation filter net (7) is provided at the inlet of the receiving ash hopper (6). A heat conduction component (8) is provided outside the receiving ash hopper (6), and both ends of the heat conduction component (8) are distributed at the filter body (3). A transmission part (9) for driving the deformation filter net (7) to move is connected to the heat conduction component (8).

2. The multifunctional hopper dust cleaning and waste heat recovery device according to claim 1, wherein: The filter body (3) includes three groups of installation pipes (31). One end of the installation pipe (31) is an inclined opening (32), and the inclined opening (32) opens towards the cavity layer (13). A filter mesh bag (33) is provided on the installation pipe (31). The three groups of installation pipes (31) are connected by a bracket (34), and the bracket (34) is connected to the inner side wall of the filter layer (14).

3. The multi-functional ash hopper dust cleaning and waste heat recovery device according to claim 2, wherein: The guiding plate (5) includes a semi-circular plate (51) communicated with the cavity layer (13), and a notch (52) adapted to the inclined opening (32) is provided at the lower part of the guiding plate (5).

4. The multifunctional ash hopper dust cleaning and waste heat recovery device according to claim 2, characterized in that: A track groove (35) is installed at the inlet of the installation pipe (31). An installation ring (36) slides in the track groove (35). Multiple curved plates (37) are installed on the installation ring (36). The front end of the curved plate (37) faces the center of the installation ring (36), and the rear end of the curved plate (37) faces the inner wall of the filter mesh bag (33). Multiple connecting rods (38) are installed outside the track groove (35), and the connecting rods (38) are installed at the inlet of the installation pipe (31).

5. The multifunctional hopper dust cleaning and waste heat recovery device according to claim 2, characterized in that: The upper part of the material receiving hopper (6) is provided with a baffle (61) connected to the inner wall of the hopper layer (15). The lower part of the material receiving hopper (6) is provided with a detachable bottom plate. The upper part of the material receiving hopper (6) is provided with a rectangular heat conduction frame body. The lower part of the material receiving hopper (6) is funnel-shaped. The heat conduction component (8) includes a fixing piece (81) arranged outside the rectangular heat conduction frame body. The bottom of the fixing piece (81) is provided with a moving piece (82). A gear belt (83) is arranged outside the moving piece (82). A receiving groove (86) is arranged at the bottom of the moving piece (82). A driving motor (84) is arranged at the bottom of the filter box body (1). A driving gear (85) is installed at the output shaft of the driving motor (84) passing through the hopper layer (15). The driving gear (85) is meshed with the gear belt (83). A heat conduction air pipe (87) is installed at the receiving groove (86). One end of the heat conduction air pipe (87) is installed at the baffle (61). A recovery air pipe (88) is connected to the heat conduction air pipe (87). One end of the recovery air pipe (88) communicates with a transverse pipe (89). A plurality of pipe orifices inserted into the installation pipe (31) are arranged on the transverse pipe (89).

6. The multifunctional hopper dust cleaning and waste heat recovery device according to claim 5, characterized in that: A compression capsule body (871) is installed on the heat conduction air pipe (87). A plurality of pressing bumps (821) are connected to the moving piece (82).

7. The multifunctional hopper dust cleaning and waste heat recovery device according to claim 5, characterized in that: The transmission part (9) includes a first bevel gear (91) installed on the output shaft of the driving motor (84). A transmission rod (92) is installed on the fixing piece (81). One end of the transmission rod (92) is connected with a second bevel gear (93) meshed with the first bevel gear (91). The end of the transmission rod (92) far from the second bevel gear (93) is connected with an elliptical plate (94). A jacking sphere (95) adapted to the elliptical plate (94) is arranged at the bottom of the deformable filter screen (7).

8. The multifunctional hopper dust cleaning and waste heat recovery device according to claim 1, characterized in that: The deformable filter screen (7) is made of a malleable material. The deformable filter screen (7) is recessed downward. The mesh holes on the deformable filter screen (7) are distributed layer by layer, and the diameter of the mesh holes in each layer gradually decreases.

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