Split type large biomass hot blast stove

Abstract

The utility model relates to the technical field of hot blast stoves, in particular to a split type large biomass hot blast stove which comprises a split type powerful heat exchange assembly, the split type powerful heat exchange assembly comprises a combustion part, a connecting pipe, a heat exchange part and a chimney, the connecting pipe is detachably connected with the combustion part and located above the combustion part, the connecting pipe is perpendicular to the combustion part, and the heat exchange part is connected with the chimney. The heat exchange part is detachably connected with the connecting pipe and located below the end, away from the combustion part, of the connecting pipe, and the chimney is fixedly connected with the heat exchange part and located on one side of the upper portion of the heat exchange part. Therefore, the problems that an existing hot blast stove is inconvenient to transport and install, low in heat efficiency and difficult to maintain are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of hot air furnace technology, and in particular to a split-type large biomass hot air furnace. Background Technology

[0002] Hot air furnaces are widely used in industrial production and agricultural drying as key equipment for providing hot air. Biomass hot air furnaces use biomass as fuel, offering advantages such as environmental friendliness and relatively low cost. However, existing large-scale biomass hot air furnaces have some shortcomings:

[0003] 1. The overall structure is huge, making transportation and installation inconvenient: Traditional large hot air furnaces are mostly integrated structures with huge volume and weight. During transportation, they are limited by road conditions and the carrying capacity of transportation vehicles, making it difficult to transport them to their destination smoothly. During installation, large lifting equipment and complex installation procedures are also required, which increases the difficulty and cost of installation.

[0004] 2. Thermal efficiency needs to be improved: In some hot blast stoves, the fuel and air are not mixed sufficiently during combustion, resulting in incomplete combustion and failure to fully utilize heat, causing energy waste and low thermal efficiency.

[0005] 3. Difficult to maintain: Due to its compact internal structure, if any internal component malfunctions, maintenance personnel will find it difficult to enter for repair or replacement, resulting in long repair times and disruption to normal production.

[0006] To address the above issues, we propose a split-type large-scale biomass hot air furnace. Utility Model Content

[0007] The purpose of this utility model is to provide a split-type large-scale biomass hot air furnace, which solves the problems of inconvenient transportation and installation, low thermal efficiency and difficult maintenance of existing hot air furnaces.

[0008] To achieve the above objectives, this utility model employs a split-type large-scale biomass hot air furnace, comprising a split-type high-efficiency heat exchange assembly. The split-type high-efficiency heat exchange assembly includes a combustion element, a connecting pipe, a heat exchange element, and a chimney. The connecting pipe is detachably connected to the combustion element and is located above the combustion element, and the connecting pipe is perpendicular to the combustion element. The heat exchange element is detachably connected to the connecting pipe and is located below the end of the connecting pipe away from the combustion element. The chimney is fixedly connected to the heat exchange element and is located on the upper side of the heat exchange element.

[0009] The combustion component includes a housing, a combustion chamber, a feed inlet, and an air inlet. The housing is detachably connected to the connecting pipe and is located below the connecting pipe. The combustion chamber is fixedly connected to the housing and is located at the center of the housing. The feed inlet is fixedly connected to the housing and is located on one side of the housing, with the feed inlet positioned on one side of the combustion chamber. The air inlet is fixedly connected to the housing and is located on the inside of the housing away from the feed inlet, with the air inlet positioned on one side of the combustion chamber.

[0010] The combustion component further includes a combustion inspection door and a spiral guide plate. The combustion inspection door is rotatably connected to the housing and located inside the housing on one side. The combustion inspection door is also located on one side of the combustion chamber. The combustion inspection door is also perpendicular to the feed inlet and the air inlet, respectively. The spiral guide plate is detachably connected to the housing and located inside the housing. The spiral guide plate is located at the center of the combustion chamber.

[0011] The heat exchanger includes a heat-conducting box, a heat-conducting cavity, a sieve plate, and a dust removal cavity. The heat-conducting box is detachably connected to the connecting pipe and is located below the end of the connecting pipe away from the box body. The heat-conducting cavity is located above the interior of the heat-conducting box. The sieve plate is fixedly connected to the heat-conducting box and is located at the center of the interior of the heat-conducting box, and the sieve plate is located below the heat-conducting cavity. The dust removal cavity is fixedly connected to the heat-conducting box and is located below the interior of the heat-conducting box, and the dust removal cavity is located below the sieve plate.

[0012] The heat exchanger also includes a heat exchange box, heat exchange tubes, heat exchange fins, and a heat exchange maintenance door. The heat exchange box is fixedly connected to the heat transfer box and is located on the side of the heat transfer box away from the box body. The chimney is located at the upper center of the heat exchange box. The heat exchange tubes are detachably connected to the heat exchange box and are located inside the lower part of the heat exchange box. The heat exchange fins are fixedly connected to the heat exchange tubes and are located on the outer surface of the heat exchange tubes. The heat exchange maintenance door is rotatably connected to the heat exchange box and is located on one side of the heat exchange box.

[0013] This utility model discloses a split-type large-scale biomass hot air furnace, comprising a split-type high-efficiency heat exchange assembly. The split-type high-efficiency heat exchange assembly includes a combustion element, a connecting pipe, a heat exchange element, and a chimney. The connecting pipe is detachably connected to the combustion element and is located above the combustion element, and is perpendicular to the combustion element. The heat exchange element is detachably connected to the connecting pipe and is located below the end of the connecting pipe away from the combustion element. The chimney is fixedly connected to the heat exchange element and is located on one side above the heat exchange element. By modifying and replacing the original heat exchange structure with a split-type high-efficiency heat exchange assembly, the problems of inconvenient transportation and installation, low thermal efficiency, and difficult maintenance of existing hot air furnaces are effectively solved. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a front view of the entire utility model.

[0017] Figure 3 This is a top view of the entire utility model.

[0018] Figure 4 This is a utility model Figure 3 A cross-sectional view of the AA line structure.

[0019] 1-Combustion component, 101-Box body, 102-Feed inlet, 103-Air inlet, 104-Combustion maintenance door, 105-Combustion chamber, 106-Spiral guide plate, 2-Connecting pipe, 3-Heat exchange component, 301-Heat conduction box, 302-Heat conduction chamber, 303-Screen plate, 304-Ash removal chamber, 305-Heat exchange box, 306-Heat exchange tube, 307-Heat exchange fins, 308-Heat exchange maintenance door, 4-Chimney. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a top view of the entire utility model. Figure 4 This is a utility model Figure 3 A cross-sectional view of the AA line structure.

[0022] This utility model provides a split-type large-scale biomass hot air furnace, including a split-type high-efficiency heat exchange assembly. The split-type high-efficiency heat exchange assembly includes a combustion element 1, a connecting pipe 2, a heat exchange element 3, and a chimney 4. The combustion element 1 includes a housing 101, a combustion chamber 105, a feed inlet 102, an air inlet 103, a combustion inspection door 104, and a spiral guide plate 106. The heat exchange element 3 includes a heat conduction box 301, a heat conduction chamber 302, a sieve plate 303, an ash removal chamber 304, a heat exchange box 305, a heat exchange pipe 306, heat exchange fins 307, and a heat exchange inspection door 308. This solution solves the problems of inconvenient transportation and installation, low thermal efficiency, and difficult maintenance of existing hot air furnaces. It is understood that, during use, the aforementioned solution allows biomass fuel to be fed through the feed inlet 102, air inlet 103, a combustion inspection door 104, and a spiral guide plate 106. The feed inlet 102 delivers fuel into the combustion chamber 105. Simultaneously, outside air enters the combustion chamber 105 through the air inlet 103. Inside the combustion chamber 105, the spiral guide plate 106 guides the air to form a spiraling upward airflow, ensuring thorough mixing of fuel and air. Under high-temperature conditions, the fuel begins to burn completely, producing high-temperature flue gas. Due to the effect of the spiral guide plate 106, the contact between fuel and air is more complete, greatly improving combustion efficiency and reducing fuel waste. The high-temperature flue gas produced by combustion enters the heat-conducting chamber 302 within the heat-conducting box 301 through the connecting pipe 2. Inside the heat-conducting chamber 302, the heat from the high-temperature flue gas is transferred to the surrounding air through the wall of the heat-conducting box 301, achieving initial heat transfer. After initial heat exchange, the flue gas passes through the sieve plate 303 and enters the ash removal chamber 304. The sieve plate 303 filters out some impurities and dust in the flue gas, preventing them from entering the subsequent heat exchange system and affecting the heat exchange effect. The flue gas after ash removal enters the heat exchange box 305 and exchanges heat with the cold air in the heat exchange tube 306. The heat exchange fins 307 on the outer surface of the heat exchange tube 306 increase the heat exchange area and improve the heat exchange efficiency. During the heat exchange process, the cold air is heated into hot air to meet the needs of industrial production or agricultural drying. Some of the high-temperature flue gas is discharged through the chimney 4, while the rest can be recovered and reused as waste heat according to actual needs. During equipment operation, the sieve plate 303... Dust will gradually accumulate on the surface of the heat exchange tube 306. When the dust accumulates to a certain extent, a dust removal operation is required. By opening the ash discharge port of the dust removal chamber 304, the dust is discharged from the equipment using gravity or auxiliary equipment to keep the inside of the equipment clean and ensure stable heat exchange efficiency. When components inside the combustion element 1, such as the spiral guide plate 106, malfunction or need cleaning, the combustion maintenance door 104 is opened. Since the combustion maintenance door 104 is perpendicular to the feed inlet 102 and the air inlet 103, it provides ample operating space for maintenance personnel. Maintenance personnel can directly enter the combustion chamber 105 to disassemble, repair, or replace faulty components. After maintenance is completed, the combustion maintenance door 104 is closed.To ensure its airtightness, when the heat exchange tube 306 becomes dusty or damaged, the heat exchange inspection door 308 can be opened, allowing maintenance personnel to enter the heat exchange box 305 to clean or replace the heat exchange tube 306. Since the heat exchange tube 306 uses a detachable connection, it facilitates operation by maintenance personnel. Simultaneously, the sieve plate 303 and the ash removal chamber 304 should be regularly inspected and cleaned to ensure their normal operation.

[0023] In this specific embodiment, the connecting pipe 2 is detachably connected to the combustion element 1 and is located above the combustion element 1, with the connecting pipe 2 perpendicular to the combustion element 1. The heat exchange element 3 is detachably connected to the connecting pipe 2 and is located below the end of the connecting pipe 2 away from the combustion element 1. The chimney 4 is fixedly connected to the heat exchange element 3 and is located on the upper side of the heat exchange element 3. The housing 101 of the combustion element 1 is hoisted to the pre-planned installation position, ensuring that the housing 101 is placed stably. The housing 101 is fixed to the ground foundation using matching bolts, nuts, and other connecting parts to ensure the stability of the combustion element 1 during operation. Subsequently, the orientation of the feed inlet 102 and the air inlet 103 is carefully checked to ensure that they meet the design requirements, avoiding directional errors that could cause inconvenience in subsequent use.

[0024] The housing 101 is detachably connected to the connecting pipe 2 and is located below the connecting pipe 2. The combustion chamber 105 is fixedly connected to the housing 101 and is located at the internal center of the housing 101. The feed inlet 102 is fixedly connected to the housing 101 and is located on one side of the housing 101, and the feed inlet 102 is located on one side of the combustion chamber 105. The air inlet 103 is fixedly connected to the housing 101 and is located on the internal side of the housing 101 away from the feed inlet, and the air inlet 103 is located on one side of the combustion chamber 105.

[0025] Secondly, the combustion inspection door 104 is rotatably connected to the housing 101 and located inside the housing 101. The combustion inspection door 104 is also located on one side of the combustion chamber 105. The combustion inspection door 104 is also perpendicular to the feed inlet 102 and the air inlet 103. The spiral guide plate 106 is detachably connected to the housing 101 and located inside the housing 101. The spiral guide plate 106 is located at the center inside the combustion chamber 105.

[0026] Meanwhile, the heat-conducting box 301 is detachably connected to the connecting pipe 2 and is located below the end of the connecting pipe 2 away from the box body 101. The heat-conducting cavity 302 is located above the interior of the heat-conducting box 301. The sieve plate 303 is fixedly connected to the heat-conducting box 301 and is located at the interior center of the heat-conducting box 301. The sieve plate 303 is located below the heat-conducting cavity 302. The ash removal cavity 304 is fixedly connected to the heat-conducting box 301 and is located below the interior of the heat-conducting box 301. The ash removal cavity 304 is located below the sieve plate 303.

[0027] In addition, the heat exchange box 305 is fixedly connected to the heat conduction box 301 and is located on the side of the heat conduction box 301 away from the box body 101. The chimney 4 is located at the upper center of the heat exchange box 305. The heat exchange tube 306 is detachably connected to the heat exchange box 305 and is located inside the lower part of the heat exchange box 305. The heat exchange fins 307 are fixedly connected to the heat exchange tube 306 and are located on the outer surface of the heat exchange tube 306. The heat exchange inspection door 308 is rotatably connected to the heat exchange box 305 and is located on one side of the heat exchange box 305.

[0028] When using this invention, biomass fuel is fed into the combustion chamber 105 through the feed inlet 102. Simultaneously, outside air enters the combustion chamber 105 through the air inlet 103. Inside the combustion chamber 105, the spiral guide plate 106 guides the air to form a spiral upward airflow, ensuring thorough mixing of fuel and air. Under high-temperature conditions, the fuel begins to burn completely, producing high-temperature flue gas. Due to the effect of the spiral guide plate 106, the contact between fuel and air is more complete, greatly improving combustion efficiency and reducing fuel waste. The high-temperature flue gas generated by combustion enters the heat-conducting chamber 302 within the heat-conducting box 301 through the connecting pipe 2. Inside the hot chamber 302, the heat from the high-temperature flue gas is transferred to the surrounding air through the wall of the heat-conducting box 301, achieving preliminary heat exchange. Subsequently, the flue gas, after preliminary heat exchange, passes through the sieve plate 303 and enters the ash removal chamber 304. The sieve plate 303 filters out some impurities and dust in the flue gas, preventing them from entering the subsequent heat exchange system and affecting the heat exchange effect. The ash-removed flue gas then enters the heat exchange box 305, where it exchanges heat with the cold air inside the heat exchange tube 306. The heat exchange fins 307 on the outer surface of the heat exchange tube 306 increase the heat exchange area and improve the heat exchange efficiency. During the heat exchange process, the cold air is heated into hot air to meet the needs of industrial production or agricultural use. To meet the needs of industries such as drying, some high-temperature flue gas is discharged through the chimney 4, while the rest can be recycled for waste heat as needed. During equipment operation, dust gradually accumulates on the surfaces of the sieve plate 303 and the heat exchange tube 306. When the dust accumulates to a certain level, a dust removal operation is required. By opening the ash discharge port of the dust removal chamber 304, the dust is discharged from the equipment by gravity or auxiliary equipment, keeping the inside of the equipment clean and ensuring stable heat exchange efficiency. When components inside the combustion element 1, such as the spiral guide plate 106, malfunction or need cleaning, the combustion inspection door 104 is opened. Since the combustion inspection door 104 is connected to the feed inlet 102... The air inlet 103 is perpendicular to the combustion chamber 105, providing ample operating space for maintenance personnel. Maintenance personnel can directly enter the combustion chamber 105 to disassemble, repair, or replace faulty components. After repair, the combustion inspection door 104 is closed to ensure its airtightness. When the heat exchange tube 306 accumulates ash or is damaged, the heat exchange inspection door 308 is opened, allowing maintenance personnel to enter the heat exchange box 305 to clean or replace the heat exchange tube 306. Since the heat exchange tube 306 uses a detachable connection, it facilitates operation by maintenance personnel. Simultaneously, the sieve plate 303 and the ash removal chamber 304 are regularly inspected and cleaned to ensure their normal operation.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A split-type large-scale biomass hot air furnace, characterized in that, The invention includes a split-type high-efficiency heat exchange assembly, which comprises a combustion element, a connecting pipe, a heat exchange element, and a chimney. The connecting pipe is detachably connected to the combustion element and is located above the combustion element, and is arranged perpendicularly to the combustion element. The heat exchange element is detachably connected to the connecting pipe and is located below the end of the connecting pipe away from the combustion element. The chimney is fixedly connected to the heat exchange element and is located on the upper side of the heat exchange element.

2. The split-type large-scale biomass hot air furnace as described in claim 1, characterized in that, The combustion component includes a housing, a combustion chamber, a feed inlet, and an air inlet. The housing is detachably connected to the connecting pipe and is located below the connecting pipe. The combustion chamber is fixedly connected to the housing and is located at the center of the housing. The feed inlet is fixedly connected to the housing and is located on one side of the housing, with the feed inlet positioned on one side of the combustion chamber. The air inlet is fixedly connected to the housing and is located on the inside of the housing away from the feed inlet, with the air inlet positioned on one side of the combustion chamber.

3. The split-type large-scale biomass hot air furnace as described in claim 2, characterized in that, The combustion component also includes a combustion inspection door and a spiral guide plate. The combustion inspection door is rotatably connected to the housing and located inside the housing on one side. The combustion inspection door is also located on one side of the combustion chamber. The combustion inspection door is also perpendicular to the feed inlet and the air inlet, respectively. The spiral guide plate is detachably connected to the housing and located inside the housing. The spiral guide plate is located at the center inside the combustion chamber.

4. The split-type large-scale biomass hot air furnace as described in claim 3, characterized in that, The heat exchanger includes a heat-conducting box, a heat-conducting cavity, a sieve plate, and a dust removal cavity. The heat-conducting box is detachably connected to the connecting pipe and is located below the end of the connecting pipe away from the box body. The heat-conducting cavity is located above the interior of the heat-conducting box. The sieve plate is fixedly connected to the heat-conducting box and is located at the center of the interior of the heat-conducting box, and the sieve plate is located below the heat-conducting cavity. The dust removal cavity is fixedly connected to the heat-conducting box and is located below the interior of the heat-conducting box, and the dust removal cavity is located below the sieve plate.

5. The split-type large-scale biomass hot air furnace as described in claim 4, characterized in that, The heat exchanger also includes a heat exchange box, heat exchange tubes, heat exchange fins, and a heat exchange maintenance door. The heat exchange box is fixedly connected to the heat conduction box and is located on the side of the heat conduction box away from the box body. The chimney is located at the upper center of the heat exchange box. The heat exchange tubes are detachably connected to the heat exchange box and are located inside the lower part of the heat exchange box. The heat exchange fins are fixedly connected to the heat exchange tubes and are located on the outer surface of the heat exchange tubes. The heat exchange maintenance door is rotatably connected to the heat exchange box and is located on one side of the heat exchange box.

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