Hot blast stove structure

Abstract

The utility model relates to the technical field of hot-blast stoves, in particular to a hot-blast stove structure. According to the technical scheme, an air inlet box provided with a heat dissipation opening and an air supply fan is installed at the top end of a second machine body, a cyclone combustion hearth with second heat dissipation fins arranged on the outer side is installed in the second machine body, and a first smoke chamber, a second smoke chamber, a third smoke chamber and a fourth smoke chamber are arranged above the cyclone combustion hearth; the cyclone combustion hearth communicates with the first smoke chamber, hot air outlets are formed in the positions, located on the two sides of the cyclone combustion hearth, of the second machine body, and an induced draft fan is installed at the top end of the second smoke chamber. The first machine body is provided with a particle bin, and the particle bin is communicated with the cyclone combustion hearth through an upper auger and a lower auger. Flow of hot air in the smoke chamber is actively accelerated through the induced draft fan, the heating fan is responsible for directionally conveying warm air subjected to sufficient heat exchange to a target area, efficient utilization and accurate control of heat are achieved, and the overall performance and efficiency of the hot blast stove are jointly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stoves, in particular to a hot blast stove structure. Background Art

[0002] A pellet hot air furnace is a new type of hot air furnace equipment that uses specific granular materials (such as biomass pellets) as fuel or heat transfer medium. It heats the air through combustion or heat transfer processes, thereby generating hot air to meet the heating, drying and other needs of various industrial or civilian fields. After searching, the patent publication number CN202121929330.0 discloses a biomass pellet hot air furnace. Although the 18 finned tubes of the heat exchanger have a larger heat exchange area and higher heat exchange efficiency when the device is in use; the finned tubes are arranged in a pattern of 5, 4, 5, and 4 from bottom to top, and the arrangement of the finned tubes is more conducive to wind flow and heat exchange; the biomass pellets can enter the combustion device through the auger feeding mechanism, and automatically ignite and burn through the combustion-supporting device and ignition device to achieve automatic operation. However, when the device is in use, it can only dissipate heat to the surrounding area through thermal radiation. However, this heat dissipation method is relatively passive, which means that the heat mainly relies on the natural flow of hot air to dissipate. In some cases, poor air flow may result in less efficient heat dissipation, which can affect heating or drying results. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a hot blast furnace structure, which solves the problems raised in the background technology.

[0004] The utility model solves the above-mentioned technical problems as follows:

[0005] A hot air furnace structure includes a first body, wherein a second body is provided on one side of the first body;

[0006] The top of the second body is provided with an air inlet box, the air inlet box is provided with a heat dissipation port, the air inlet box is provided with a heater, a cyclone combustion furnace is provided inside the second body, a second heat dissipation fin is provided on the outer side of the cyclone combustion furnace, a dust cleaning and fire viewing furnace door is provided at one end of the cyclone combustion furnace facing away from the first body, a first smoke chamber, a second smoke chamber, a third smoke chamber and a fourth smoke chamber are provided inside the second body above the cyclone combustion furnace, and the end of the cyclone combustion furnace close to the dust cleaning and fire viewing furnace door is connected to the first smoke chamber, the third smoke chamber is connected to the first smoke chamber and the second smoke chamber respectively through a first heat equalizing pipe and a second heat equalizing pipe, the fourth smoke chamber is connected to the second smoke chamber through a third heat equalizing pipe and a fourth heat equalizing pipe, the second body is provided with hot air outlets on both sides of the cyclone combustion furnace, and the second body is provided with an induced draft fan at the top of the second smoke chamber;

[0007] A particle silo is installed on the upper part of the first body, an upper auger is installed below the particle silo, a lower auger is installed below the upper auger, the particle silo is connected to the cyclone combustion furnace through the upper auger and the lower auger, and a combustion-supporting fan is provided on one side of the lower auger inside the first body.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a partition is provided in the second smoke chamber, which divides the second smoke chamber into two upper and lower cavities. The third smoke chamber is connected to the lower cavity of the second smoke chamber through the second heat equalizing tube. The lower cavity of the second smoke chamber is connected to the fourth smoke chamber through the third heat equalizing tube. The fourth smoke chamber is connected to the upper space of the second smoke chamber through the fourth heat equalizing tube.

[0010] The beneficial effects of adopting the above further scheme are:

[0011] By separating the second smoke chamber, the flow path and temperature distribution of the flue gas can be more effectively controlled. This design helps the flue gas stay in the smoke chamber for a longer time, so that it can more fully exchange heat with the heat equalizing tube, thereby improving thermal efficiency. At the same time, the design of the upper and lower cavities makes the heat distribution more uniform, reduces local overheating, and is conducive to the stable operation of the system. The third smoke chamber is connected to the lower cavity of the second smoke chamber through the second heat equalizing tube, while the fourth smoke chamber is connected to the upper space of the second smoke chamber through the fourth heat equalizing tube. This design allows heat to be transferred along a more optimized path, improving heat transfer efficiency. At the same time, it also increases the surface area of ​​heat exchange, further improving the heat dissipation effect.

[0012] Furthermore, first heat dissipation fins are provided on the outer sides of the first heat dissipation tube, the second heat dissipation tube, the third heat dissipation tube and the fourth heat dissipation tube, and the first heat dissipation fins are spirally distributed on the heat dissipation tubes.

[0013] The beneficial effects of adopting the above further scheme are:

[0014] The spirally arranged heat sink fins significantly increase the contact area with the air, providing more heat dissipation surface. This helps transfer heat from the first, second, third, and fourth heat sinks to the air more quickly, improving heat dissipation efficiency. The increased heat dissipation area means more surface area for heat exchange, making the heat exchange process more efficient and effective. This helps lower the overall temperature of the first, second, third, and fourth heat sinks and the hot air furnace system, maintaining stable system operation. The spirally arranged heat sink fins help evenly distribute heat from the first, second, third, and fourth heat sinks across the entire heat dissipation surface, preventing localized overheating. This helps reduce thermal stress caused by excessive temperature gradients and extend the life of the equipment. The close contact between the heat sink fins and the first, second, third, and fourth heat sinks reduces thermal resistance, allowing for smoother heat transfer. This further improves heat dissipation efficiency and reduces energy loss.

[0015] Furthermore, the pellet silo is used to store pellet fuel.

[0016] The beneficial effects of adopting the above further scheme are:

[0017] The pellet silo provides a dedicated storage space for pellet fuel, allowing it to be stored centrally, eliminating the management difficulties caused by scattered storage. The silo capacity can be designed according to actual needs, meeting the needs of long-term continuous operation while avoiding waste and safety hazards caused by excessive storage.

[0018] Furthermore, an igniter for igniting the particle fuel is provided in the cyclone combustion furnace.

[0019] The beneficial effects of adopting the above further scheme are:

[0020] The igniter quickly generates a high-temperature flame, rapidly igniting the pellet fuel and rapidly raising the temperature within the combustion chamber for a quick start. The igniter provides a stable ignition source during the initial startup phase, helping the pellet fuel form a stable combustion flame within the furnace and reducing combustion fluctuations caused by unstable ignition. The igniter ensures full combustion of the pellet fuel within the furnace, minimizing unburned fuel loss and improving combustion efficiency. Through igniter control, the air ratio and combustion temperature during the combustion process can be optimized, further improving combustion efficiency.

[0021] Furthermore, the second body is provided with ash cleaning ports at corresponding positions of the first smoke chamber, the second smoke chamber, the third smoke chamber and the fourth smoke chamber, so as to facilitate cleaning of the first smoke chamber, the second smoke chamber, the third smoke chamber and the fourth smoke chamber through the ash cleaning ports.

[0022] The beneficial effects of adopting the above further scheme are:

[0023] By providing ash cleaning ports at corresponding locations within each smoke chamber, direct cleaning of the chamber interior is possible. This greatly simplifies the cleaning process and improves cleaning efficiency. Regular ash cleaning is crucial for maintaining stable operation of the hot blast furnace system. The ash cleaning ports make cleaning more convenient, reducing downtime required for cleaning. After extended operation, a certain amount of dust and particulate matter will accumulate in the smoke chamber. If not promptly cleaned, this accumulated dust may block the flue, affecting flue gas flow and system operation. The ash cleaning ports allow for timely removal of accumulated dust and prevent blockage. Ash accumulation not only affects system efficiency but also causes wear and corrosion to the equipment. Regular ash cleaning reduces this wear and corrosion, thereby extending the equipment's service life. Cleaning ash from the smoke chamber improves the combustion environment, ensuring more complete and efficient combustion. This helps improve the overall combustion efficiency of the hot blast furnace system, reducing energy consumption and operating costs. Ash accumulation in the smoke chamber also affects heat exchange efficiency. Regular ash cleaning keeps the heat exchanger clean and unobstructed, improving heat exchange efficiency and enabling the hot blast furnace system to utilize heat more efficiently.

[0024] Furthermore, the first body is rotatably mounted with a cover plate on the top of the particle silo.

[0025] The beneficial effects of adopting the above further scheme are:

[0026] The cover effectively prevents dust, impurities, and other contaminants from entering the pellet silo, maintaining the cleanliness of the pellet fuel, thereby improving combustion efficiency and extending equipment life. In humid environments, the cover also prevents moisture from entering the pellet silo, keeping the fuel dry and preventing caking or deterioration caused by moisture. The pivoting cover allows for easy opening and closing, making it convenient for workers to add or check fuel in the pellet silo at any time. This design reduces operational complexity and improves work efficiency. The cover also minimizes heat exchange between the top of the pellet silo and the external environment, reducing heat loss. This contributes positively to the overall energy efficiency of the hot air furnace system.

[0027] The utility model provides a hot air furnace structure with the following beneficial effects:

[0028] The cyclone combustion furnace design, combined with an igniter and combustion-supporting blower, achieves rapid and complete combustion of pellet fuel, improving combustion efficiency. Furthermore, the multi-stage smoke chamber (first through fourth smoke chambers) and multiple soaker tubes (first through fourth soaker tubes) facilitate the efficient transfer and even distribution of heat energy, enhancing thermal energy utilization. The hot blast furnace boasts a compact overall structure and a rationally arranged component layout, reducing floor space and improving space utilization. In particular, the spirally arranged first cooling fins on the outer edges of the first, second, third, and fourth soaker tubes not only enhance heat dissipation but also improve the overall appearance. The ash cleaning port and ash cleaning and fire viewing door on the second body facilitate regular cleaning of the smoke chamber and combustion furnace, effectively preventing ash accumulation and blockage, and ensuring the long-term stable operation of the hot blast furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0030] In the attached figure:

[0031] Figure 1 This is a schematic diagram of the main appearance of the utility model;

[0032] Figure 2 This is a schematic diagram of the rear view of the present invention;

[0033] Figure 3 This is a schematic diagram of the internal structure of the second body of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the first body of the present utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1. First body; 101. Particle silo; 102. Upper auger; 103. Lower auger; 104. Combustion-supporting fan; 2. Second body; 201. First smoke chamber; 202. Second smoke chamber; 203. Induced draft fan; 204. Air inlet box; 2041. Heat dissipation port; 205. Warm air blower; 206. Hot air outlet; 207. Fourth smoke chamber; 208. Third smoke chamber; 209. First soaking tube; 2091. First cooling fin; 210. Cyclone combustion furnace; 2101. Second cooling fin; 2102. Ash cleaning and fire viewing furnace door; 211. Second soaking tube; 212. Third soaking tube; 213. Fourth soaking tube. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1 to 4 As shown, the embodiment provided by the utility model: Example

[0039] A hot air stove structure includes a first body 1, a second body 2 is provided on one side of the first body 1, an air inlet box 204 is installed on the top of the second body 2, a heat dissipation port 2041 is opened on the air inlet box 204, a baffle is installed at the heat dissipation port 2041 through a hinge, when the heater 205 is working, the baffle is pressed against the heat dissipation port 2041, blocking the heat dissipation port 2041, when the device is not working, due to the lack of wind pressure, the baffle naturally droops, exposing the heat dissipation port 2041, facilitating natural heat dissipation. During a power outage, the hot air within the second body 2 is not discharged through the heater 205 but is dissipated naturally through the heat dissipation ports 2041. The heater 205 is mounted on the air inlet box 204. A cyclone combustion furnace 210 is located within the second body 2. This furnace 210 houses an igniter for igniting the pellet fuel. With its superior ignition performance, the igniter releases a high-temperature flame in a very short time, rapidly igniting the pellet fuel and causing the furnace temperature to rise sharply, enabling rapid system startup. Its stable ignition source provides a strong guarantee for stable combustion of the pellet fuel during the initial startup phase, reducing combustion fluctuations caused by unstable ignition. By precisely controlling the ignition process, the igniter promotes full combustion of the fuel, reduces the proportion of unburned fuel, and significantly improves combustion efficiency. At the same time, it can also optimize the air distribution and combustion temperature during the combustion process, and further tap the potential of combustion efficiency. A second heat dissipation fin 2101 is provided on the outside of the cyclone combustion furnace 210, and a ash cleaning and fire viewing furnace door 2102 is provided at the end of the cyclone combustion furnace 210 away from the first body 1. The interior of the second body 2 is located above the cyclone combustion furnace 210 and is provided with a first smoke chamber 201, a second smoke chamber 202, a third smoke chamber 208 and a fourth smoke chamber 207. The second body 2 is provided with an ash cleaning port at the corresponding positions of the first smoke chamber 201, the second smoke chamber 202, the third smoke chamber 208 and the fourth smoke chamber 207, so that the ash cleaning port can be used to clean the first smoke chamber 201, the second smoke chamber 202, the third smoke chamber 208 and the fourth smoke chamber 207. The ash cleaning port is cleverly set at the corresponding position of each smoke chamber, which realizes direct and efficient cleaning of the interior of the smoke chamber, simplifies the cleaning process, and improves operating efficiency. Regular cleaning is crucial to maintaining stable hot blast furnace system operation. The presence of a cleaning port makes cleaning more convenient, reducing downtime caused by cleaning. As a system operates over time, dust and particulate matter inevitably accumulate within the flue chamber. If not cleaned promptly, this can lead to flue blockage, impacting flue gas flow and system operation. The presence of a cleaning port effectively prevents this problem and ensures smooth system operation. Regular cleaning also reduces wear and corrosion on the equipment caused by dust, extending its service life.In addition, the cleaning work also optimizes the combustion environment, improves combustion efficiency and heat exchange efficiency, and helps reduce system energy consumption and operating costs. The second smoke chamber 202 is provided with a partition, which divides the second smoke chamber 202 into two upper and lower cavities. The third smoke chamber 208 is connected to the lower cavity of the second smoke chamber 202 through the second heat equalizing tube 211. The lower cavity of the second smoke chamber 202 is connected to the fourth smoke chamber 207 through the third heat equalizing tube 212. The fourth smoke chamber 207 is connected to the upper space of the second smoke chamber 202 through the fourth heat equalizing tube 213. By separating the second smoke chamber 202, the flow path and temperature distribution of the flue gas can be more effectively controlled. This design helps the flue gas stay in the smoke chamber for a longer time, thereby more fully exchanging heat with the heat equalizing tube, thereby improving thermal efficiency. At the same time, the design of the upper and lower cavities makes the heat distribution more uniform, reduces local overheating, and is conducive to the stable operation of the system. The third smoke chamber 208 communicates with the lower cavity of the second smoke chamber 202 via the second heat-equalizing tube 211, while the fourth smoke chamber 207 communicates with the upper space of the second smoke chamber 202 via the fourth heat-equalizing tube 213. This design allows heat to be transferred along a more optimized path, improving heat transfer efficiency. It also increases the surface area for heat exchange, further enhancing heat dissipation. The cyclone combustion furnace 210 is connected to the first smoke chamber 201 at one end near the ash cleaning and fire viewing furnace door 2102, and the third smoke chamber 208 is connected to the first smoke chamber 201 and the second smoke chamber 202 respectively through the first heat equalizing tube 209 and the second heat equalizing tube 211, and the fourth smoke chamber 207 is connected to the second smoke chamber 202 through the third heat equalizing tube 212 and the fourth heat equalizing tube 213. The first heat equalizing tube 209, the second heat equalizing tube 211, the third heat equalizing tube 212 and the fourth heat equalizing tube 213 are provided with a first heat dissipation fin 2091 on the outside, and the first heat dissipation fin 2091 is spirally distributed on the first heat equalizing tube 209, the second heat equalizing tube 211, the third heat equalizing tube 212 and the fourth heat equalizing tube 213. The spirally arranged heat dissipation fins greatly widen the contact interface with the air, providing ample heat dissipation surface for heat transfer. This accelerates the rate of heat release from the first, second, third, and fourth heat-sinking tubes 209, 211, 212, and 213 to the air, significantly improving heat dissipation efficiency. The expansion of the heat dissipation area directly increases the surface area for heat exchange, making the heat exchange process more in-depth and efficient, effectively reducing the overall operating temperature of the first, second, third, and fourth heat-sinking tubes 209, 211, 212, and 213, as well as the hot air furnace system, ensuring stable and reliable operation of the system. At the same time, the spiral layout helps to evenly distribute heat across the heat dissipation surface, preventing local overheating, reducing thermal stress caused by temperature gradients, and extending the service life of the equipment.The close fit between the heat dissipation fins and the first heat equalizing tube 209, the second heat equalizing tube 211, the third heat equalizing tube 212 and the fourth heat equalizing tube 213 reduces the thermal resistance, making the heat transfer smoother and more unobstructed, further improving the heat dissipation efficiency and reducing energy loss. The second body 2 is located on both sides of the cyclone combustion furnace 210 and is provided with hot air outlets 206. The second body 2 is located at the top of the second smoke chamber 202 and is equipped with an induced draft fan 203. Example

[0040] In order to facilitate the delivery of the pellet fuel in the pellet silo 101 into the cyclone combustion furnace 210, for example, Figures 1 to 4 As shown, the present invention also includes a pellet silo 101 mounted on the top of the first body 1. This silo is used to store pellet fuel. As a dedicated storage space for pellet fuel, silo 101 enables centralized and organized fuel management, effectively avoiding the management challenges associated with scattered storage. The silo's flexible capacity design meets the needs of continuous operation while avoiding the waste and safety risks associated with overstorage. A cover plate is rotatably mounted on the top of the first body 1, acting as a protective barrier for the pellet silo 101. Its presence effectively blocks contaminants such as dust and impurities from entering the silo, maintaining the cleanliness of the pellet fuel and thereby improving combustion efficiency and equipment durability. In humid environments, the cover plate plays a crucial role in protecting against moisture and humidity, ensuring the fuel remains dry and preventing caking or deterioration caused by moisture. Its rotatable mounting design facilitates operational convenience, making fuel addition and inspection easy and efficient. At the same time, the cover plate also has a certain thermal insulation effect, which reduces the heat exchange between the top of the silo and the external environment, and helps to improve the overall energy efficiency of the hot air furnace system. The first body 1 is located below the particle silo 101 and is equipped with an upper auger 102, and a lower auger 103 is installed below the upper auger 102. The particle silo 101 is connected to the cyclone combustion furnace 210 through the upper auger 102 and the lower auger 103. A combustion-supporting fan 104 is provided on one side of the lower auger 103 inside the first body 1.

[0041] Working principle:

[0042] The pellet fuel stored in the pellet silo 101 is continuously conveyed by the upper and lower augers 102, 103, into the cyclone combustion furnace 210. This automatic feeding mechanism ensures a continuous fuel supply and stable combustion. Inside the cyclone combustion furnace 210, the igniter activates, igniting the pellet fuel. The combustion-supporting blower 104 provides the necessary combustion air to ensure sufficient combustion of the fuel. During the combustion process, the chemical energy in the pellet fuel is converted into heat energy, producing a high-temperature flame and combustion products.

[0043] The high-temperature flames and flue gases generated by the combustion form a high-temperature area within the cyclone combustion furnace 210, and are initially cooled by the second heat dissipation fins 2101 on the outside of the furnace. Subsequently, the flue gases enter the first smoke chamber 201, and the flue gases in the first smoke chamber 201 then enter the third smoke chamber 208 through the first heat-scaling tube 209. The flue gases in the third smoke chamber 208 then enter the lower cavity of the second smoke chamber 202 through the second heat-scaling tube 211. The flue gases continue to flow in the lower cavity of the second smoke chamber 202 and enter the fourth smoke chamber 207 through the third heat-scaling tube 212. The flue gases then enter the upper space of the second smoke chamber 202 through the fourth heat-scaling tube 213 and are finally discharged through the induced draft fan 203. The first heat dissipation fins 2091 spirally distributed on the outside of the first heat-scaling tube 209, the second heat-scaling tube 211, the third heat-scaling tube 212, and the fourth heat-scaling tube 213 further enhance the heat transfer effect, allowing the heat energy to be evenly distributed and transferred to the entire system. The heater fan 205 draws cold air through the air inlet box 204. The air then passes through the first, second, third, and fourth heat-sinking tubes 209, 211, 212, and 213, as well as the first heat sink fins 2091 thereon, to exchange heat with the high-temperature flue gas. The induced draft fan 203 generates negative pressure to draw the flue gas from the cyclonic combustion furnace 210 and each of the various smoke chambers (the first, second, third, and fourth smoke chambers 201, 202, 208, and 207), ensuring smooth flue gas flow and discharge from the system. The induced draft fan 203 not only facilitates flue gas flow but also optimizes the heat exchange process by controlling the flue gas velocity and flow rate. In the heat exchange system, the high-temperature flue gas exchanges heat with the cold air, generating hot air. The induced draft fan 203 ensures that the flue gas remains in the heat exchanger for a sufficient period of time, thereby improving heat exchange efficiency and transferring more heat energy to the cold air. During the heat exchange process, the cold air is heated to become hot air and discharged through the hot air outlet 206 to be used in places that need heating or drying.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0045] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hot air furnace structure, comprising a first body (1), a second body (2) being provided on one side of the first body (1), characterized in that: An air inlet box (204) is installed at the top of the second body (2), a heat dissipation port (2041) is provided on the air inlet box (204), a heater (205) is installed on the air inlet box (204), a cyclone combustion furnace (210) is provided inside the second body (2), a second heat dissipation fin (2101) is provided on the outside of the cyclone combustion furnace (210), an ash cleaning and fire viewing furnace door (2102) is provided at one end of the cyclone combustion furnace (210) away from the first body (1), and a first smoke chamber (201), a second smoke chamber (202), a third smoke chamber (208) and a third smoke chamber (209) are provided inside the second body (2) above the cyclone combustion furnace (210). Four smoke chambers (207), and one end of the cyclone combustion furnace (210) close to the ash cleaning and fire viewing furnace door (2102) is connected to the first smoke chamber (201), the third smoke chamber (208) is connected to the first smoke chamber (201) and the second smoke chamber (202) respectively through the first heat equalizing tube (209) and the second heat equalizing tube (211), the fourth smoke chamber (207) is connected to the second smoke chamber (202) through the third heat equalizing tube (212) and the fourth heat equalizing tube (213), the second body (2) is located on both sides of the cyclone combustion furnace (210) and is provided with a hot air outlet (206), and the second body (2) is located at the top of the second smoke chamber (202) and is equipped with an induced draft fan (203); A pellet silo (101) is installed on the upper part of the first body (1), an upper auger (102) is installed on the first body (1) below the pellet silo (101), a lower auger (103) is installed below the upper auger (102), the pellet silo (101) is connected to the cyclone combustion furnace (210) through the upper auger (102) and the lower auger (103), and a combustion-supporting fan (104) is provided inside the first body (1) on one side of the lower auger (103).

2. The hot blast stove structure according to claim 1, characterized in that: A partition is provided in the second smoke chamber (202), which is used to divide the second smoke chamber (202) into two upper and lower cavities. The third smoke chamber (208) is connected to the lower cavity of the second smoke chamber (202) through the second heat-equalizing tube (211). The lower cavity of the second smoke chamber (202) is connected to the fourth smoke chamber (207) through the third heat-equalizing tube (212). The fourth smoke chamber (207) is connected to the upper space of the second smoke chamber (202) through the fourth heat-equalizing tube (213).

3. The hot blast furnace structure according to claim 1, characterized in that: First heat dissipation fins (2091) are provided on the outer sides of the first heat dissipation tube (209), the second heat dissipation tube (211), the third heat dissipation tube (212) and the fourth heat dissipation tube (213), and the first heat dissipation fins (2091) are spirally distributed on the first heat dissipation tube (209), the second heat dissipation tube (211), the third heat dissipation tube (212) and the fourth heat dissipation tube (213).

4. The hot blast furnace structure according to claim 1, characterized in that: The pellet silo (101) is used to store pellet fuel.

5. The hot blast furnace structure according to claim 1, characterized in that: An igniter for igniting the particle fuel is provided in the cyclone combustion furnace (210).

6. The hot blast stove structure according to claim 1, characterized in that: The second body (2) is provided with ash cleaning ports at corresponding locations of the first smoke chamber (201), the second smoke chamber (202), the third smoke chamber (208) and the fourth smoke chamber (207), so as to facilitate cleaning of the first smoke chamber (201), the second smoke chamber (202), the third smoke chamber (208) and the fourth smoke chamber (207).

7. The hot blast stove structure according to claim 4, characterized in that: The first body (1) is located at the top of the particle silo (101) and is rotatably mounted with a cover plate.

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