Energy-saving biomass particle hot blast stove

Abstract

The invention discloses an energy-saving biomass particle hot blast stove, and relates to the technical field of hot blast stoves, the energy-saving biomass particle hot blast stove comprises a feeding box, one side of the feeding box is provided with a heating box, the heating box is internally provided with a hearth assembly and a heating bin, one side of the heating box is provided with an air supply assembly, and the heating bin is internally provided with a heat exchange assembly; the heat exchange assembly is connected with the air supply assembly, the smoke bin is arranged in the heating box, and a plurality of filter bag assemblies are installed in the smoke bin; and the smoke purification assembly is mounted on one side of the heating box during use and is connected with the smoke outlet of the heating box. The multiple heat exchange modules are designed, air flow is heated and cooled at different stages, and the overall heat efficiency of the hot blast stove is remarkably improved. By optimizing the heat exchange process, energy waste is reduced to the maximum extent, and the energy utilization rate is improved on the premise that the system stability is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hot blast stoves, and specifically to an energy-saving biomass pellet hot blast stove. Background Art

[0002] In recent years, China has strongly advocated the comprehensive utilization of renewable energy, encouraged the development of biomass energy, and increased the promotion and utilization efforts, thus promoting the research and development and manufacturing of biomass pellet hot blast stoves, and some biomass pellet stove production enterprises have emerged as the times require;

[0003] The miniaturization of hot blast stoves is one of the development directions of hot blast stoves. It has the advantages of small volume, light weight, easy to move and install, etc., and is widely used in scenarios that require fast and flexible heat sources. However, due to its relatively small power, the temperature and pressure of the discharged flue gas are relatively high, and the demand for flue gas treatment is also more urgent.

[0004] After retrieval, a Chinese patent (Publication No.: CN214809574U) discloses a smoke treatment device. The patent includes a filtration box. One end of the filtration box away from the ground is provided with an air inlet pipe. One end of the filtration box away from the air inlet pipe is provided with a connecting pipe. One end of the connecting pipe away from the filtration box is provided with a suction fan. One end of the suction fan away from the connecting pipe is provided with an air outlet pipe. A filter element is detachably connected to the filtration box.

[0005] Traditional hot blast stove smoke purification equipment is usually complex in design, requires a large installation space, and has high requirements for operation and maintenance. These characteristics make the smoke treatment system of small hot blast stoves often face problems such as high cost, inconvenient operation, and difficult maintenance. Therefore, the present invention proposes an energy-saving biomass pellet hot blast stove. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy-saving biomass pellet hot blast stove to solve the problems mentioned in the above background art.

[0007] The present invention can be realized through the following technical solutions: An energy-saving biomass pellet hot blast stove includes a feeding box, a heating box, and a smoke purification component. The feeding box is connected to the heating box, and a feeding structure is arranged inside the feeding box for transporting biomass fuel and combustion-supporting gas into the heating box;

[0008] A furnace component and a heating chamber are arranged inside the heating box. A heat exchange component is arranged inside the heating chamber. The furnace component heats the heat exchange component based on the biomass fuel transported by the feeding box;

[0009] Moreover, a plurality of ash cleaning ports, a smoke exhaust port, an air outlet, and a air supply component are arranged on the side of the heating box. The air outlet end of the heat exchange component is connected to the air outlet for transporting hot air out of the heating box;

[0010] On one side of the furnace component and the heating chamber inside the heating box, there is a smoke chamber. The bottom of the smoke chamber is connected to the smoke exhaust port, and the top of the smoke chamber is connected to the heating chamber. An active valve structure is built in the connection part to control the connection state between the smoke chamber and the heating chamber, thereby controlling the path of smoke flow;

[0011] And a plurality of filter bag assemblies are installed inside the smoke chamber;

[0012] The air outlet end of the air supply component is connected to the air inlet end of the heat exchange component, and is used to transport the gas to be heated into the heat exchange component for heating;

[0013] When in use, the smoke purification component is installed on one side of the heating box, and the smoke inlet of the smoke purification component is connected to the smoke exhaust port of the heating box, and the smoke enters the smoke purification component through the smoke exhaust port;

[0014] The smoke purification component includes a spiral tube, an assembly tube and a purification box. The assembly tube is used to connect to the smoke exhaust port of the heating box;

[0015] The spiral tube includes a spiral inner pipe. An outer pipe is sleeved outside the inner pipe. The outer pipe is provided with an air inlet and an air outlet, and a flow channel is formed between the outer pipe and the inner pipe. The air inlet and the air outlet of the outer pipe are respectively connected to the air supply component through a set of connecting pipes to realize the movement of gas in the flow channel;

[0016] The bottom and the top of the inner pipe are respectively connected to the assembly tube and the purification box, and the inner pipe is used to discharge the smoke moving along the assembly tube into the purification box;

[0017] The moving direction of the smoke in the inner pipe is opposite to the moving direction of the gas transported by the air supply component between the outer pipe and the inner pipe;

[0018] Inside the purification box, a one-way component, a multi-layer catalyst component and an activated carbon fiber component are sequentially installed along the moving direction of the smoke. That is, after the smoke enters the purification box along the inner pipe, it first passes through the one-way component, then passes through each layer of the catalyst component in turn, and finally passes through the activated carbon fiber component to complete the purification of the smoke.

[0019] A further technical improvement of the present invention is that: the assembly tube includes a connecting plate, the connecting plate is connected to the smoke inlet of the inner pipe, a folding tube is installed on the lower side of the connecting plate, and an extension tube is installed at the bottom of the folding tube;

[0020] The connecting plate, the folding tube and the extension tube are interconnected to facilitate the flow of smoke.

[0021] A further technical improvement of the present invention lies in that: the one-way component includes a box body, a plurality of one-way valve units are installed inside the box body, and a detachable reinforcement cover is installed on the top of the box body;

[0022] The reinforcement cover is used to fix each one-way valve unit inside the box body;

[0023] Moreover, both the reinforcement cover and the bottom of the box body are of a hollow structure, which does not affect the passage of smoke while fixing each one-way valve unit.

[0024] A further technical improvement of the present invention lies in that: the one-way valve unit includes a unit cylinder, the unit cylinder adopts a semi-closed structure, and a Tesla valve structure is arranged inside the unit cylinder;

[0025] Moreover, the Tesla valve structure inside the unit cylinder is communicated with its unclosed side;

[0026] When each unit cylinder is in use, they are mutually attached. The unit cylinder turns its unclosed side into a closed state through the adjacent unit cylinder or the box body, and then turns the Tesla valve structure inside it into an up-and-down communication state for smoke to pass along a preset path.

[0027] A further technical improvement of the present invention lies in that: a concave area is provided on one side of the top of each unit cylinder. The concave area is not communicated with the Tesla valve structure inside the unit cylinder, and a fixing member is installed inside the concave area for facilitating the user to take out each unit cylinder from inside the box body for cleaning.

[0028] A further technical improvement of the present invention lies in that: the activated carbon fiber assembly includes two winding mechanisms, which are respectively installed on both sides inside the purification box. An activated carbon fiber cloth is wound between the winding parts of the two winding mechanisms. The unfolded part of the activated carbon fiber cloth is its using part, which is used to adsorb the smoke when it passes through.

[0029] The hot blast stove presets the usage duration for the two winding mechanisms. After the usage time reaches the preset usage duration, the winding parts of the two winding mechanisms rotate synchronously to replace the using part of the activated carbon fiber cloth wound on the outside of them.

[0030] A further technical improvement of the present invention lies in that: the area of the purification box below the activated carbon fiber cloth shrinks towards the using part area of the activated carbon fiber cloth to improve the quality of smoke passing through the activated carbon fiber cloth.

[0031] A further technical improvement of the present invention lies in that: the heat exchange component includes a heating tube, and the heating tube is arranged in an inclined shape inside the heating chamber to increase the heat radiation area with the furnace component;

[0032] A blower duct is installed at the bottom of the heated tube, and the blower duct is connected to the air outlet end of the air supply assembly.

[0033] A further technical improvement of the present invention lies in that: a cooling assembly is installed at the top of each filter bag assembly inside the smoke chamber. The air inlet of the cooling assembly is connected to the air outlet of the air supply assembly. When the air supply assembly conveys gas, part of the air is diverted to the cooling assembly, and the air outlet of the cooling assembly is connected to the heat exchange assembly;

[0034] Before the smoke contacts each filter bag assembly, it first contacts the cooling assembly for cooling;

[0035] The cooling assembly includes multiple cooling layers. Each cooling layer includes a plurality of tube bodies arranged in parallel, and the tube bodies at corresponding positions of each cooling layer are vertically distributed along the same axis, that is, each tube body is arranged in an array inside the smoke chamber;

[0036] A maintenance opening is provided at the top of the smoke chamber of the heating box. When repairing or cleaning the cooling assembly, the maintenance opening is opened. The tube bodies arranged in an array of the cooling assembly help the user extend tools between the tube bodies of the cooling assembly, thus facilitating repair and cleaning.

[0037] A further technical improvement of the present invention lies in that: an exhaust assembly is installed at the top of the activated carbon fiber assembly inside the purification box. The exhaust assembly is used to exhaust the smoke inside the purification box and provides additional driving force to the smoke.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The present invention designs multiple heat exchange modules and heats and cools the air flow at different stages, significantly improving the overall thermal efficiency of the hot blast stove. By optimizing the heat exchange process, energy waste is minimized, and the energy utilization rate is improved on the premise of ensuring system stability;

[0040] And by integrating multiple filtration, cooling and heat exchange modules, the system can effectively remove harmful gases and particulate matter in the smoke, significantly reducing pollutant emissions;

[0041] On the other hand, the present invention adopts a modular design, enabling each key part such as the heat exchanger and the filtration device to be independently disassembled and maintained. The user can flexibly adjust the system according to the actual operation situation, reducing the maintenance time and downtime cost when the system fails. At the same time, the modular design makes regular cleaning and maintenance more convenient, ensuring the long-term efficient operation of the system. This design also reduces the work intensity of maintenance personnel and improves the operation efficiency of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the accompanying drawings.

[0043] Figure 1 is a schematic structural diagram of the present invention;

[0044] Figure 2 is a rear view of the present invention;

[0045] Figure 3 is a side sectional view of the smoke purification assembly in Embodiment 1 of the present invention;

[0046] Figure 4 is the present invention Figure 3 a magnified structural view of part A;

[0047] Figure 5 is a partial structural sectional view of the one-way assembly in the present invention;

[0048] Figure 6 is a schematic arrangement diagram of the one-way valve unit in the present invention;

[0049] Figure 7 is a side sectional view of the heating box in the present invention;

[0050] Figure 8 is a schematic structural diagram of the heat exchange assembly in the present invention;

[0051] Figure 9 is a side sectional view of the heating box in Embodiment 2 of the present invention;

[0052] Figure 10 is a side sectional view of the smoke purification assembly in Embodiment 2 of the present invention;

[0053] In the figure: 1, feed box; 2, heating box; 3, furnace assembly; 4, heating chamber; 5, smoke chamber; 6, air supply assembly; 7, smoke purification assembly; 8, connecting pipe; 9, heat exchange assembly; 10, filter bag assembly; 11, cooling assembly; 71, spiral pipe; 711, inner pipe; 712, outer pipe; 72, assembled pipe; 73, purification box; 74, catalyst assembly; 75, activated carbon fiber assembly; 76, one-way assembly; 761, box body; 762, one-way valve unit; 763, reinforcement cover; 77, exhaust air assembly; 91, heated pipe; 92, air delivery pipe. Detailed Embodiments

[0054] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific embodiments, structures, features and their effects of the present invention.

[0055] Embodiment 1

[0056] Please refer toFigure 1-8 As shown in the figure, the present invention provides an energy-saving biomass pellet hot blast stove, including a feeding box 1, a heating box 2 and a smoke purification assembly 7. The feeding box 1 is connected to the heating box 2, and a feeding structure is arranged inside the feeding box 1 for conveying biomass fuel and combustion-supporting gas into the heating box 2;

[0057] A furnace assembly 3 and a heating chamber 4 are arranged inside the heating box 2. A heat exchange assembly 9 is arranged inside the heating chamber 4. The furnace assembly 3 heats the heat exchange assembly 9 based on the biomass fuel conveyed by the feeding box 1;

[0058] And a plurality of ash cleaning ports, smoke exhaust ports, air outlet ports and a air supply assembly 6 are arranged on the side of the heating box 2. The air outlet end of the heat exchange assembly 9 is connected to the air outlet port for conveying hot air out of the heating box 2;

[0059] A smoke chamber 5 is arranged on one side of the furnace assembly 3 and the heating chamber 4 inside the heating box 2. The bottom of the smoke chamber 5 is communicated with the smoke exhaust port, and the top of the smoke chamber 5 is communicated with the heating chamber 4. An active valve structure is arranged inside the communicating part for controlling the communicating state between the smoke chamber 5 and the heating chamber 4, so as to control the flow path of the smoke;

[0060] And a plurality of filter bag assemblies 10 are installed inside the smoke chamber 5. The filter bag assemblies 10 adopt high-temperature resistant materials in this embodiment. On one side of each filter bag assembly 10 of the heating box 2, a corresponding maintenance port is arranged. When not in use, the maintenance port is sealed by a sealing assembly to avoid smoke leakage;

[0061] The air outlet end of the air supply assembly 6 is connected to the air inlet end of the heat exchange assembly 9 for conveying the gas to be heated into the heat exchange assembly 9 for heating;

[0062] When in use, the smoke purification assembly 7 is installed on one side of the heating box 2, and the smoke inlet of the smoke purification assembly 7 is communicated with the smoke exhaust port of the heating box 2. The smoke enters the smoke purification assembly 7 through the smoke exhaust port;

[0063] And in this embodiment, an extending part is arranged on the outside of the smoke purification assembly 7. When assembling with the heating box 2, a corresponding bracket is used to support the extending part of the smoke purification assembly 7, and the bracket is screwed to the heating box 2;

[0064] The smoke purification assembly 7 includes a spiral tube 71, an assembly tube 72 and a purification box 73. The assembly tube 72 is used to connect to the smoke exhaust port of the heating box 2;

[0065] The spiral tube 71 includes a spiral inner tube 711, an outer tube 712 is sleeved outside the inner tube 711, the outer tube 712 is provided with an air inlet and an air outlet, and a flow channel is formed between the outer tube 712 and the inner tube 711. The air inlet and the air outlet of the outer tube 712 are respectively connected to corresponding parts of the air supply assembly 6 through a set of connecting pipes 8 to realize the movement of gas in the flow channel;

[0066] The bottom and the top of the inner tube 711 are respectively connected to the assembly tube 72 and the purification box 73. The inner tube 711 is used to discharge the smoke moving along the assembly tube 72 into the purification box 73;

[0067] The moving direction of the smoke in the inner tube 711 is opposite to the moving direction of the gas transported by the air supply assembly 6 between the outer tube 712 and the inner tube 711;

[0068] Inside the purification box 73, a one-way component 76, a multi-layer catalyst component 74 and an activated carbon fiber component 75 are sequentially installed along the moving direction of the smoke. That is, after the smoke enters the purification box 73 along the inner tube 711, it first passes through the one-way component 76, then passes through each layer of the catalyst component 74 in sequence, and finally passes through the activated carbon fiber component 75 to complete the purification of the smoke;

[0069] And the purification box 73 is provided with a cleaning port on one side of the one-way component 76. When the one-way component 76 is in use, it penetrates through the cleaning port and enters the interior of the purification box 73 and is fixed with a fixing member. And the one-way component 76 seals the cleaning port to prevent smoke leakage;

[0070] In this embodiment, the activated carbon fiber component 75 includes two winding mechanisms, which are respectively installed on both sides inside the purification box 73. An activated carbon fiber cloth is wound between the winding parts of the two winding mechanisms. The unfolded part of the activated carbon fiber cloth is its used part, which is used to adsorb the smoke when it passes by;

[0071] By presetting the service life of the two winding mechanisms, after the service time reaches the preset service life, the winding parts of the two winding mechanisms rotate synchronously to replace the used part of the activated carbon fiber cloth wound on the outside of them.

[0072] The area of the purification box 73 below the activated carbon fiber cloth shrinks towards the area of the used part of the activated carbon fiber cloth to improve the quality of the smoke passing through the activated carbon fiber cloth.

[0073] Please refer to Figure 3-4 As shown, the assembly tube 72 includes a connecting plate, the connecting plate is connected to the smoke inlet of the inner tube 711, a folding tube is installed on the lower side of the connecting plate, and an extension tube is installed at the bottom of the folding tube;

[0074] The connecting plate, the folding pipe, and the extension pipe are interconnected to facilitate the flow of smoke;

[0075] And the extension pipe includes a first sliding part connected to the folding pipe. A second sliding part is slidably connected to the outside of the first sliding part. The second sliding part is used to connect to the smoke exhaust port of the heating box 2. At the same time, a sealing component is provided at the contact part between the first sliding part and the second sliding part to prevent smoke from escaping between the first sliding part and the second sliding part.

[0076] Please refer to Figure 5-6 As shown, the one-way component 76 includes a box body 761. A plurality of one-way valve units 762 are installed inside the box body 761, and a detachable reinforcement cover 763 is installed on the top of the box body 761;

[0077] The reinforcement cover 763 is used to fix each one-way valve unit 762 inside the box body 761;

[0078] And both the bottom of the reinforcement cover 763 and the box body 761 are hollow structures, which do not affect the passage of smoke while fixing each one-way valve unit 762.

[0079] The one-way valve unit 762 includes a unit cylinder. The unit cylinder adopts a semi-closed structure, and a Tesla valve structure is arranged inside the unit cylinder;

[0080] And the Tesla valve structure inside the unit cylinder is communicated with its unclosed side;

[0081] When each unit cylinder is in use, they are mutually attached. The unit cylinder converts its unclosed side into a closed state through adjacent unit cylinders or the box body 761, and then converts the Tesla valve structure inside it into an up-and-down communication state for smoke to pass along a preset path;

[0082] A concave area is provided on one side of the top of each unit cylinder. The concave area is not communicated with the Tesla valve structure inside the unit cylinder, and a fixing member is installed inside the concave area to facilitate the user to take out each unit cylinder from inside the box body 761 for cleaning;

[0083] When cleaning the one-way component 76, first remove the fixing member, then draw out the one-way component 76 from the cleaning port, and then disassemble the reinforcement cover 763 from the box body 761, and draw it out from the box body 761 through the fixing member of each one-way valve unit 762;

[0084] After each one-way valve unit 762 is drawn out, clean its internal structure from its unclosed side.

[0085] Please refer to Figure 7-8As shown in the figure, the heat exchange component 9 includes a heat receiving pipe 91, which is inclined inside the heating chamber 4 to increase the heat radiation area between it and the furnace component 3;

[0086] The bottom end of the heat receiving pipe 91 is equipped with an air delivery pipe 92, and the air delivery pipe 92 is connected to the air outlet end of the air supply component 6.

[0087] When the present invention is in use:

[0088] The hot blast stove uses a blower device to deliver air into the furnace component 3 for combustion support. The air forms a flow path in the heating box 2 and the smoke purification component 7, thereby driving the smoke to move along the smoke purification component 7;

[0089] Now, assemble the smoke purification component 7 and the heating box 2, and then use two sets of connecting pipes 8 to connect the air inlet and outlet of the outer pipe 712 of the smoke purification component 7 to the corresponding parts of the air supply component 6 respectively. When the air supply component 6 delivers gas to the heat exchange component 9, part of the gas flows along the flow channel between the outer pipe 712 and the inner pipe 711;

[0090] At the same time, open the active valve structure between the smoke chamber 5 and the heating chamber 4 to turn the smoke chamber 5 and the heating chamber 4 into a connected state, and the smoke enters the smoke chamber 5 along the connected part between the smoke chamber 5 and the heating chamber 4;

[0091] When the smoke moves along the smoke chamber 5, it is filtered multiple times by each filter bag component 10, and then the smoke passes through the smoke exhaust port of the heating box 2 and enters the smoke purification component 7, and enters the inner pipe 711 of the spiral pipe 71 along the assembly pipe 72;

[0092] When the smoke moves along the inner pipe 711, it exchanges heat with the gas in the flow channel to achieve temperature reduction;

[0093] Subsequently, the smoke enters the purification box 73, contacts each layer of catalyst component 74 after passing through the one-way component 76, and finally is discharged from the smoke purification component 7 through the activated carbon fiber component 75.

[0094] Embodiment 2

[0095] An energy-saving biomass pellet hot blast stove includes a feed box 1, a heating box 2 and a smoke purification component 7. The feed box 1 is connected to the heating box 2, and a feeding structure is arranged inside the feed box 1 for conveying biomass fuel and combustion-supporting gas to the heating box 2;

[0096] A furnace component 3 and a heating chamber 4 are arranged inside the heating box 2, and a heat exchange component 9 is arranged inside the heating chamber 4. The furnace component 3 heats the heat exchange component 9 based on the biomass fuel conveyed by the feed box 1;

[0097] Moreover, multiple dust cleaning ports, smoke exhaust ports, air outlet ports and a air supply assembly 6 are provided on the side of the heating box 2. The air outlet end of the heat exchange assembly 9 is connected to the air outlet port for delivering hot air out of the heating box 2;

[0098] A smoke chamber 5 is arranged inside the heating box 2 on one side of the furnace assembly 3 and the heating chamber 4. The bottom of the smoke chamber 5 is communicated with the smoke exhaust port, and the top of the smoke chamber 5 is communicated with the heating chamber 4. An active valve structure is built in the communicating part to control the communicating state between the smoke chamber 5 and the heating chamber 4, thereby controlling the path of smoke flow;

[0099] And a plurality of filter bag assemblies 10 are installed inside the smoke chamber 5;

[0100] The air outlet end of the air supply assembly 6 is connected to the air inlet end of the heat exchange assembly 9 for delivering the gas to be heated into the heat exchange assembly 9 for heating;

[0101] When in use, the smoke purification assembly 7 is installed on one side of the heating box 2, and the smoke inlet of the smoke purification assembly 7 is communicated with the smoke exhaust port of the heating box 2. Smoke enters the smoke purification assembly 7 through the smoke exhaust port;

[0102] The smoke purification assembly 7 includes a spiral tube 71, an assembly tube 72 and a purification box 73. The assembly tube 72 is used for connecting with the smoke exhaust port of the heating box 2;

[0103] The spiral tube 71 includes a spiral inner pipe 711. An outer pipe 712 is sleeved outside the inner pipe 711. The outer pipe 712 is provided with an air inlet and an air outlet, and a flow channel is formed between the outer pipe 712 and the inner pipe 711. The air inlet and the air outlet of the outer pipe 712 are respectively connected to the air supply assembly 6 through a set of connecting pipes 8;

[0104] The bottom and the top of the inner pipe 711 are respectively connected to the assembly tube 72 and the purification box 73. The inner pipe 711 is used for discharging the smoke moving along the assembly tube 72 into the purification box 73;

[0105] The moving direction of the smoke in the inner pipe 711 is opposite to the moving direction of the gas conveyed by the air supply assembly 6 between the outer pipe 712 and the inner pipe 711;

[0106] Inside the purification box 73, a one-way assembly 76, a multi-layer catalyst assembly 74 and an activated carbon fiber assembly 75 are sequentially installed along the moving direction of the smoke. That is, after the smoke enters the purification box 73 along the inner pipe 711, it first passes through the one-way assembly 76, then passes through each layer of the catalyst assembly 74 in turn, and finally passes through the activated carbon fiber assembly 75 to complete the purification of the smoke.

[0107] Compared with Embodiment 1, a cooling component 11 is installed at the top of each filter bag assembly 10 inside the smoke chamber 5 in Embodiment 2. The air inlet of the cooling component 11 is connected to the air outlet of the air supply component 6. When the air supply component 6 conveys gas, part of the air is diverted to the cooling component 11, and the air outlet of the cooling component 11 is connected to the heat exchange component 9;

[0108] Before the smoke contacts each filter bag assembly 10, it first contacts the cooling component 11 for cooling;

[0109] The cooling component 11 includes multiple cooling layers. Each cooling layer includes a plurality of tube bodies arranged in parallel, and the tube bodies at corresponding positions of each cooling layer are vertically distributed along the same axis, that is, the tube bodies are arranged in an array inside the smoke chamber 5;

[0110] The heating box 2 has a maintenance opening at the top of the smoke chamber 5. When performing maintenance or cleaning on the cooling component 11, the maintenance opening is opened. The tube bodies arranged in an array of the cooling component 11 help the user extend tools between the tube bodies of the cooling component 11, thus facilitating maintenance and cleaning.

[0111] And an exhaust component 77 is installed at the top of the activated carbon fiber assembly 75 inside the purification box 73. The exhaust component 77 is used to discharge the smoke inside the purification box 73 and provide additional driving force for the smoke.

[0112] The above are only preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes, but as long as the technical content of the present invention is not departed from, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An energy-saving biomass pellet hot air furnace, comprising a feed box (1), a heating box (2) is installed on one side of the feed box (1), a furnace assembly (3) and a heating chamber (4) are arranged inside the heating box (2), and an air supply assembly (6) is installed on one side of the heating box (2), a heat exchange assembly (9) is installed in the heating chamber (4), and the heat exchange assembly (9) is connected to the air supply assembly (6), characterized in that ； A smoke bin (5) is arranged in the heating box (2), and a plurality of filter bag assemblies (10) are installed in the smoke bin (5), and the smoke bin (5) is connected to a smoke exhaust port of the heating box (2); The smoke purification component (7) is installed on one side of the heating box (2) when in use and is connected to the smoke exhaust port of the heating box (2). The smoke purification component (7) includes: An assembly pipe (72) is connected to the smoke exhaust port of the heating box (2); A purification box (73) is provided with a one-way assembly (76), a multi-layer catalyst assembly (74) and an activated carbon fiber assembly (75) along the flow direction of smoke; The spiral tube (71) comprises an inner tube (711) and an outer tube (712) which are arranged in double layers from inside to outside; The inner pipe (711) is connected to the assembly pipe (72) and the purification box (73) for smoke circulation; The air inlet and the air outlet of the outer pipe (712) are connected to corresponding parts of the air supply assembly (6) for gas circulation; The direction of gas flow is opposite to that of smoke flow.

2. The energy-saving biomass particle hot air stove according to claim 1, characterized in that: The one-way assembly (76) comprises a box body (761), a plurality of one-way valve units (762) are installed inside the box body (761), and a detachable reinforcement cover (763) is installed on the top of the box body (761); The reinforcement cover (763) and the bottom of the box body (761) are both hollow structures.

3. The energy-saving biomass particle hot air stove according to claim 2, characterized in that: The one-way valve unit (762) comprises a unit column, the unit column adopts a semi-enclosed structure, and a Tesla valve structure is arranged inside the unit column; The Tesla valve structure within the unit column is connected to the unsealed side thereof.

4. The energy-saving biomass particle hot air stove according to claim 3, characterized in that: A recessed area is provided on one side of the top of each unit column, and a fixing piece is installed inside the recessed area.

5. The energy-saving biomass particle hot air stove according to claim 4, characterized in that: The activated carbon fiber assembly (75) comprises two groups of winding mechanisms, which are respectively installed on two sides of the purification box (73), and the activated carbon fiber cloth is wound between the winding parts of the two groups of winding mechanisms; The area where the activated carbon fiber cloth is deployed is the area where it is used.

6. The energy-saving biomass particle hot air stove according to claim 5, characterized in that: The hot air furnace has a preset usage time for the two sets of winding mechanisms. After the usage time reaches the preset usage time, the winding parts of the two sets of winding mechanisms rotate synchronously to replace the usage part of the activated carbon fiber cloth rolled on the outside.

7. The energy-saving biomass pellet hot air stove according to claim 6 is characterized in that the smoke A cooling assembly (11) is installed on the top of each filter bag assembly (10) inside the bin (5); The air inlet of the cooling component (11) is connected to the air outlet of the air supply component (6), and the air outlet of the cooling component (11) is connected to the heat exchange component (9).

8. The energy-saving biomass particle hot air stove according to claim 7, characterized in that: The cooling component (11) comprises multiple cooling layers, each cooling layer comprises a plurality of tubes arranged in parallel, and the tubes at corresponding positions of each cooling layer are vertically distributed along the same axial direction.

9. The energy-saving biomass particle hot air stove according to claim 8, characterized in that: An exhaust assembly (77) is installed on the top of the activated carbon fiber assembly (75) in the purification box (73).

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