An industrial coal-fired boiler

Abstract

The present invention relates to the technical field of boilers, and specifically relates to an industrial coal-fired boiler, which includes a boiler body. A combustion chamber for burning coal is provided inside the boiler body. A motor is fixedly installed on one side wall of the boiler body, and a first device cavity is provided at the upper end of the boiler body. In the present invention, the motor drives the coal material at the bottom of the combustion chamber to roll to the upper middle part of the combustion chamber, thereby increasing the contact area between the coal material and the gas, improving the combustion efficiency of the coal material. Then, it drives the compressed gas inside the circular cavity to be sprayed into the combustion chamber through the Z-shaped air duct and make full contact with the coal material. Then, it drives the water body inside the third device cavity to enter the Z-shaped air duct through a plurality of ventilation ports and be sprayed out with the gas. The coal and water vapor inside the combustion chamber react at high temperature to produce water gas, further improving the combustion efficiency of the coal material.

Description

Technical Field

[0001] The present invention relates to the technical field of boilers, and specifically to an industrial coal-fired boiler. Background Art

[0002] A coal-fired boiler refers to a boiler that burns coal as fuel. After the heat of the coal is converted, steam or hot water is generated. However, not all of the heat is effectively converted, and there is a part of reactive consumption, so there is an efficiency problem. Generally, larger boilers have higher efficiency, between 60% and 80%.

[0003] Existing patent (Publication No.: CN112503503A) an industrial coal-fired boiler, including a chassis, a furnace body, a ladder, and a sealing mechanism. A plurality of support rods are provided on the top of the chassis, and the furnace body is provided at the top of the support rods. The furnace body is a hollow structure, and a pot cavity is provided inside the furnace body. A furnace body is provided inside the pot cavity. A ladder is installed on one side of the furnace body, which brings convenience to the use of the industrial coal-fired boiler. A platform is installed at the top of the furnace body. Through the platform, people can stand on it to operate the top of the industrial coal-fired boiler; the hot gas and soot generated by combustion in the furnace cavity.

[0004] During the use of this invention, the hot gas and soot are discharged from the industrial coal-fired boiler through a steel pipe. When the hot gas and soot pass through the steel pipe, the heat in the hot gas and soot can be transferred to the pot cavity through the steel pipe to heat the water in the pot cavity, so that the heat of the waste gas can be reused again. However, when the coal material inside the boiler is burning, the coal material at the bottom is difficult to fully contact with the gas, and thus it is easy to have the situation of incomplete combustion of the coal material, thereby reducing the working efficiency of the boiler body.

[0005] Therefore, an industrial coal-fired boiler is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an industrial coal-fired boiler. By means of a motor, the coal material at the bottom of the combustion chamber is driven to roll to the upper middle part of the combustion chamber, thereby increasing the contact area between the coal material and the gas, improving the combustion efficiency of the coal material, and then driving the compressed gas inside the circular cavity to be sprayed into the interior of the combustion chamber through a Z-shaped air duct and making full contact with the coal material, improving the combustion efficiency of the coal material. Then, it drives the water body inside the third device cavity to enter the interior of the Z-shaped air duct through a plurality of air vents and be sprayed out with the gas. The coal and water vapor inside the combustion chamber react at high temperature to produce water gas, and thus the combustion efficiency of the coal material can be further improved to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An industrial coal-fired boiler includes a boiler body. A combustion chamber for burning coal is provided inside the boiler body. A motor is fixedly installed on one side wall of the boiler body. A first device cavity is provided at the upper end of the boiler body. Inside the first device cavity, there is a driving mechanism that cooperates with the motor and is used to improve the combustion efficiency of the coal in the combustion chamber. A second device cavity is also provided inside the boiler body. Inside the second device cavity, there is a transmission mechanism that cooperates with the driving mechanism. A circular cavity is further provided inside the boiler body. On one side of the circular cavity, there is a jet mechanism that cooperates with the transmission mechanism and is used to further improve the combustion efficiency of the coal.

[0009] Preferably, the driving mechanism includes two rotating rods symmetrically and rotatably installed inside the combustion chamber. On the outer edges of the two rotating rods inside the combustion chamber, multiple conveying blades for driving the coal to tumble are fixedly installed. The upper ends of the two rotating rods penetrate through the inner top wall of the combustion chamber and extend into the first device cavity. The end of the output shaft of the motor is fixedly installed with a rotating shaft. One end of the rotating shaft penetrates through the first device cavity and extends into the second device cavity. On the outer edge of the rotating shaft inside the first device cavity, two worm sleeves are symmetrically and fixedly installed. The upper ends of the two rotating rods are respectively fixedly installed with worm wheels. The two worm wheels are respectively engaged with the two worm sleeves.

[0010] When the boiler body is working, start the motor. The motor drives the rotating shaft inside the first device cavity to rotate. Subsequently, the rotating shaft drives the two worm sleeves inside the first device cavity to rotate. The two worm sleeves respectively drive the rotating rods inside the two worm wheels to rotate. Then, the conveying blades inside the combustion chamber are driven by the two rotating rods to rotate, and the coal inside the combustion chamber is stirred, so that the coal at the bottom of the combustion chamber can tumble to the upper and middle parts of the combustion chamber, thereby increasing the contact area between the coal and the gas and improving the combustion efficiency of the coal.

[0011] Preferably, the transmission mechanism includes a first bevel gear fixedly installed at one end of the rotating shaft. A guide rod is rotatably installed at the upper end of the second device cavity. A second bevel gear is fixedly installed on the outer edge of the upper end of the guide rod. The second bevel gear is engaged with the first bevel gear. A reciprocating lead screw is fixedly installed at the lower end of the guide rod. A lead screw sleeve is sleeved on the outer edge of the reciprocating lead screw. A fixed block is fixedly installed on the outside of the lead screw sleeve. A fixed rod is fixedly installed at the bottom of the fixed block. The lower end of the fixed rod penetrates through the bottom wall of the second device cavity and extends into the circular cavity.

[0012] After the motor is started, it drives the first bevel gear inside the second device cavity to rotate through the rotating shaft. Subsequently, the first bevel gear drives the guide rod and the reciprocating lead screw to rotate through the second bevel gear. The reciprocating lead screw drives the fixed block to move up and down inside the second device cavity through the lead screw sleeve. The fixed block drives the fixed rod and the push block to move up and down inside the circular cavity, thereby completing the power transmission.

[0013] Preferably, the jet mechanism includes a push block that is hermetically and slidably installed inside the circular cavity. The upper and lower surfaces of the push block are both arc-shaped. The lower end of the fixed rod is fixedly connected to the upper surface of the push block. A rectangular groove communicating with the circular cavity is formed inside the boiler body. A slider is hermetically and slidably installed inside the rectangular groove. One side of the slider is elastically connected to one side wall of the rectangular groove through two springs. A Z-shaped air duct communicating with both the rectangular groove and the circular cavity is formed inside the boiler body. An air guide port matching the Z-shaped air duct is formed inside the slider. A one-way valve that only allows gas to enter the inside of the circular cavity from the outside is fixedly installed at the bottom of the Z-shaped air duct.

[0014] After the motor is started, the push block will move up and down inside the circular cavity. When the push block moves downward, it will "squeeze" the slider to move toward the inside of the rectangular groove against the elastic force of the two springs. Subsequently, the air guide port inside the slider is no longer in communication with the Z-shaped air duct inside the boiler body, and the slider closes the middle part of the Z-shaped air duct. However, at this time, the push block still has a downward trend. Therefore, the gas inside the circular cavity will be compressed. When the push block moves to the bottom of the circular cavity, the push block no longer contacts the slider, and the slider resets under the elastic force of the two springs. The air guide port inside the slider is reconnected to the Z-shaped air duct inside the boiler body. Subsequently, the compressed gas inside the circular cavity will be sprayed into the inside of the combustion chamber through the Z-shaped air duct and make full contact with the coal material to improve the combustion efficiency of the coal material. When the push block moves upward, the slider will close the middle part of the Z-shaped air duct again, causing a negative pressure to form inside the circular cavity. Then, in cooperation with the one-way valve, the external gas will be pumped back into the inside of the circular cavity to prepare for the next jet of gas.

[0015] Preferably, a third device cavity is further formed inside the boiler body. Liquid water is contained inside the third device cavity. The upper end of the third device cavity is connected to the upper end of the Z-shaped air duct through a plurality of uniformly arranged air vents.

[0016] When the gas is sprayed into the inside of the combustion chamber through the Z-shaped air duct, the flow rate of the gas at the outlet is relatively fast. According to Bernoulli's principle, the pressure is low where the flow rate is high. As a result, the water body inside the third device cavity is driven to enter the inside of the Z-shaped air duct through the plurality of air vents and is sprayed out with the gas. After the liquid water is sprayed into the inside of the combustion chamber, it will quickly turn into water vapor due to the high temperature. The coal and water vapor inside the combustion chamber react at high temperature to produce water gas, the main components of which are carbon monoxide and hydrogen. Both carbon monoxide and hydrogen are flammable gases, which can further improve the combustion efficiency of the coal material.

[0017] Preferably, the third device cavity is also connected to a water supply device through a pipeline.

[0018] The interior of the third device cavity can be replenished with water through a water supply device to ensure that there is continuously water vapor available for reaction with the coal material.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. When the boiler body is operating, start the motor so that the coal material at the bottom of the combustion chamber can roll to the upper-middle part of the combustion chamber, thereby increasing the contact area between the coal material and the gas and improving the combustion efficiency of the coal material.

[0021] 2. After the motor is started, the push block will move up and down inside the circular cavity, causing the compressed gas inside the circular cavity to be sprayed into the interior of the combustion chamber through the Z-shaped air duct and making full contact with the coal material, thereby improving the combustion efficiency of the coal material.

[0022] 3. When the gas is sprayed into the interior of the combustion chamber through the Z-shaped air duct, it can drive the water body inside the third device cavity to enter the interior of the Z-shaped air duct through multiple ventilation openings and be sprayed out along with the gas. The coal and water vapor inside the combustion chamber react at high temperature to produce water gas, which can further improve the combustion efficiency of the coal material. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 2 It is a schematic diagram during the downward movement of the push block of the present invention;

[0025] Figure 3 It is a schematic diagram when the push block of the present invention moves down to the limit position;

[0026] Figure 4 It is an enlarged view of the structure at A of the present invention;

[0027] Figure 5 It is an enlarged view of the structure at B of the present invention;

[0028] Figure 6 It is an enlarged view of the structure at C of the present invention.

[0029] In the figure: 1. Boiler body; 2. Combustion chamber; 3. Motor; 4. First device cavity; 5. Rotating shaft; 6. Worm gear sleeve; 7. Worm wheel; 8. Rotating rod; 9. Conveyor blade; 10. Second device cavity; 11. First bevel gear; 12. Second bevel gear; 13. Guide rod; 14. Reciprocating lead screw; 15. Lead screw sleeve; 16. Fixed block; 17. Fixed rod; 18. Circular cavity; 19. Push block; 20. Rectangular groove; 21. Slide block; 22. Z-shaped air duct; 23. Air guide port; 24. Spring; 25. Third device cavity; 26. Ventilation opening; 27. Check valve. Detailed Embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 6 , the present invention provides an industrial coal-fired boiler, and the technical solution is as follows:

[0034] An industrial coal-fired boiler includes a boiler body 1. A combustion chamber 2 for burning coal is provided inside the boiler body 1. A motor 3 is fixedly installed on one side wall of the boiler body 1. A first device cavity 4 is provided at the upper end of the boiler body 1. A driving mechanism for improving the combustion efficiency of the coal in the combustion chamber 2 and cooperating with the motor 3 is provided inside the first device cavity 4. A second device cavity 10 is further provided inside the boiler body 1. A transmission mechanism cooperating with the driving mechanism is provided inside the second device cavity 10. A circular cavity 18 is also provided inside the boiler body 1. A jet mechanism for further improving the combustion efficiency of the coal and cooperating with the transmission mechanism is provided on one side of the circular cavity 18.

[0035] As an embodiment of the present invention, referring to Figures 1-4 , the driving mechanism includes two rotating rods 8 symmetrically and rotatably installed inside the combustion chamber 2. On the outer edges of the two rotating rods 8, multiple conveying blades 9 for driving the coal material to roll are fixedly installed inside the combustion chamber 2. The upper ends of the two rotating rods 8 penetrate through the inner top wall of the combustion chamber 2 and extend into the interior of the first device cavity 4. The end of the output shaft of the motor 3 is fixedly installed with a rotating shaft 5. One end of the rotating shaft 5 penetrates through the first device cavity 4 and extends into the interior of the second device cavity 10. On the outer edge of the rotating shaft 5, two worm sleeves 6 are symmetrically and fixedly installed inside the first device cavity 4. The upper ends of the two rotating rods 8 are respectively fixedly installed with worm wheels 7, and the two worm wheels 7 are respectively engaged with the two worm sleeves 6.

[0036] When the boiler body 1 is working, start the motor 3. The motor 3 drives the rotating shaft 5 inside the first device cavity 4 to rotate. Subsequently, the rotating shaft 5 drives the two worm sleeves 6 inside the first device cavity 4 to rotate. The two worm sleeves 6 respectively drive the rotating rods 8 inside the two worm wheels 7 to rotate. Then, the conveying blades 9 inside the combustion chamber 2 are driven by the two rotating rods 8 to rotate, and then the coal material inside the combustion chamber 2 is stirred, so that the coal material at the bottom of the combustion chamber 2 can roll to the upper middle part of the combustion chamber 2, thereby increasing the contact area between the coal material and the gas and improving the combustion efficiency of the coal material.

[0037] As an embodiment of the present invention, referring to Figures 1-3 and Figure 5 , the transmission mechanism includes a first bevel gear 11 fixedly installed at one end of the rotating shaft 5. A guide rod 13 is rotatably installed at the upper end of the second device cavity 10. A second bevel gear 12 is fixedly installed on the outer edge of the upper end of the guide rod 13. The second bevel gear 12 is engaged with the first bevel gear 11. A reciprocating lead screw 14 is fixedly installed at the lower end of the guide rod 13. A lead screw sleeve 15 is sleeved on the outer edge of the reciprocating lead screw 14. A fixing block 16 is fixedly installed outside the lead screw sleeve 15. A fixing rod 17 is fixedly installed at the bottom of the fixing block 16. The lower end of the fixing rod 17 penetrates through the bottom wall of the second device cavity 10 and extends into the interior of the circular cavity 18.

[0038] After the motor 3 is started, it drives the first bevel gear 11 inside the second device cavity 10 to rotate through the rotating shaft 5. Subsequently, the first bevel gear 11 drives the guide rod 13 and the reciprocating lead screw 14 to rotate through the second bevel gear 12. The reciprocating lead screw 14 drives the fixing block 16 to move up and down inside the second device cavity 10 through the lead screw sleeve 15. The fixing block 16 drives the fixing rod 17 and the push block 19 to move up and down inside the circular cavity 18, thereby completing the power transmission.

[0039] As an embodiment of the present invention, referring to Figures 1-3 and Figure 6, the jet mechanism includes a push block 19 that is hermetically and slidably installed inside the circular cavity 18. The upper and lower surfaces of the push block 19 are both arc-shaped. The lower end of the fixed rod 17 is fixedly connected to the upper surface of the push block 19. A rectangular groove 20 communicating with the circular cavity 18 is opened inside the boiler body 1. A slider 21 is hermetically and slidably installed inside the rectangular groove 20. One side of the slider 21 is elastically connected to one side wall of the rectangular groove 20 through two springs 24. A Z-shaped air duct 22 communicating with both the rectangular groove 20 and the circular cavity 18 is opened inside the boiler body 1. An air guide port 23 matching the Z-shaped air duct 22 is opened inside the slider 21. A one-way valve 27 that only allows gas to enter the inside of the circular cavity 18 from the outside is fixedly installed at the bottom of the Z-shaped air duct 22.

[0040] After the motor 3 is started, the push block 19 will move up and down inside the circular cavity 18. When the push block 19 moves downward, it will "squeeze" the slider 21 to move toward the inside of the rectangular groove 20 against the elastic force of the two springs 24. Subsequently, the air guide port 23 inside the slider 21 is no longer in communication with the Z-shaped air duct 22 inside the boiler body 1. The slider 21 closes the middle part of the Z-shaped air duct 22. However, at this time, the push block 19 still has a tendency to move downward. Therefore, the gas inside the circular cavity 18 will be compressed. When the push block 19 moves to the bottom of the circular cavity 18, the push block 19 no longer contacts the slider 21. The slider 21 resets under the elastic force of the two springs 24. The air guide port 23 inside the slider 21 is reconnected to the Z-shaped air duct 22 inside the boiler body 1. Subsequently, the compressed gas inside the circular cavity 18 will be sprayed into the inside of the combustion chamber 2 through the Z-shaped air duct 22 and make full contact with the coal material to improve the combustion efficiency of the coal material. When the push block 19 moves upward, the slider 21 will close the middle part of the Z-shaped air duct 22 again, causing a negative pressure to form inside the circular cavity 18. Then, in cooperation with the one-way valve 27, the external gas is re-pumped into the inside of the circular cavity 18 to prepare for the next jet of gas.

[0041] As an implementation mode of the present invention, referring to Figures 1-3 , a third device cavity 25 is also opened inside the boiler body 1. Liquid water is contained inside the third device cavity 25. The upper end of the third device cavity 25 is connected to the upper end of the Z-shaped air duct 22 through a plurality of uniformly arranged air vents 26.

[0042] When the gas is sprayed into the inside of the combustion chamber 2 through the Z-shaped air duct 22, the flow rate of the gas at the outlet is relatively fast. According to Bernoulli's principle, the pressure is low where the flow rate is large. This drives the water body inside the third device cavity 25 to enter the inside of the Z-shaped air duct 22 through the plurality of air vents 26 and be sprayed out with the gas. After the liquid water is sprayed into the inside of the combustion chamber 2, it will quickly turn into water vapor due to the high temperature. The coal and water vapor inside the combustion chamber 2 react at high temperature to produce water gas, the main components of which are carbon monoxide and hydrogen. Both carbon monoxide and hydrogen are flammable gases, which can further improve the combustion efficiency of the coal material.

[0043] As an embodiment of the present invention, referring to Figures 1-3 , the third device chamber 25 is also connected to a water supply device through a pipeline.

[0044] The inside of the third device chamber 25 can be supplemented with water through the water supply device to ensure that there is continuously water vapor available for reaction with the coal material.

[0045] Working principle: When the boiler body 1 is working, start the motor 3. The motor 3 drives the rotation of the rotating shaft 5 inside the first device cavity 4. Subsequently, the rotating shaft 5 drives the rotation of the two worm sleeves 6 inside the first device cavity 4. The two worm sleeves 6 respectively drive the rotation of the rotating rods 8 inside the two worm wheels 7. Then, the two rotating rods 8 drive the rotation of the conveying blades 9 inside the combustion chamber 2, and then stir the coal material inside the combustion chamber 2, so that the coal material at the bottom of the combustion chamber 2 can roll to the upper-middle part of the combustion chamber 2, thereby increasing the contact area between the coal material and the gas and improving the combustion efficiency of the coal material. After the motor 3 is started, it drives the rotation of the first bevel gear 11 inside the second device cavity 10 through the rotating shaft 5. Subsequently, the first bevel gear 11 drives the rotation of the guide rod 13 and the reciprocating lead screw 14 through the second bevel gear 12. The reciprocating lead screw 14 drives the fixed block 16 to move up and down inside the second device cavity 10 through the lead screw sleeve 15. The fixed block 16 drives the fixed rod 17 and the push block 19 to move up and down inside the circular cavity 18, thus completing the power transmission. After the motor 3 is started, the push block 19 moves up and down inside the circular cavity 18. When the push block 19 moves downward, it will "squeeze" the slider 21 to move into the rectangular groove 20 against the elastic force of the two springs 24. Subsequently, the air guide port 23 inside the slider 21 is no longer communicated with the Z-shaped air duct 22 inside the boiler body 1, and the slider 21 closes the middle part of the Z-shaped air duct 22. However, at this time, the push block 19 still has a downward movement trend, so the gas inside the circular cavity 18 will be compressed. When the push block 19 moves to the bottom of the circular cavity 18, the push block 19 no longer contacts the slider 21, and the slider 21 resets under the elastic force of the two springs 24. The air guide port 23 inside the slider 21 is re-communicated with the Z-shaped air duct 22 inside the boiler body 1. Subsequently, the compressed gas inside the circular cavity 18 is sprayed into the combustion chamber 2 through the Z-shaped air duct 22 and makes full contact with the coal material, improving the combustion efficiency of the coal material. When the push block 19 moves upward, the slider 21 closes the middle part of the Z-shaped air duct 22 again, making the inside of the circular cavity 18 form a negative pressure. Then, in cooperation with the one-way valve 27, the external gas is re-pumped into the circular cavity 18 for the next jet. When the gas is sprayed into the combustion chamber 2 through the Z-shaped air duct 22, the flow rate of the gas at the outlet is relatively fast. According to Bernoulli's principle, where the flow rate is large, the pressure is small. Thus, it drives the water body inside the third device cavity 25 to enter the Z-shaped air duct 22 through multiple air vents 26 and be sprayed out with the gas. The liquid water will quickly turn into water vapor due to the high temperature after being sprayed into the combustion chamber 2. The coal and water vapor inside the combustion chamber 2 react at high temperature to produce water gas, whose main components are carbon monoxide and hydrogen. Both carbon monoxide and hydrogen are flammable gases, which can further improve the combustion efficiency of the coal material.

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

Claims

1. An industrial coal-fired boiler, comprising a boiler body (1), characterized in that: Inside the boiler body (1), a combustion chamber (2) for burning coal is provided. On one side wall of the boiler body (1), a motor (3) is fixedly installed. At the upper end of the boiler body (1), a first device cavity (4) is provided. Inside the first device cavity (4), a driving mechanism is provided which cooperates with the motor (3) and is used to improve the combustion efficiency of the coal material inside the combustion chamber (2). Inside the boiler body (1), a second device cavity (10) is also provided. Inside the second device cavity (10), a transmission mechanism is provided which cooperates with the driving mechanism. Inside the boiler body (1), a circular cavity (18) is also provided. On one side of the circular cavity (18), a jet mechanism is provided which cooperates with the transmission mechanism and is used to further improve the combustion efficiency of the coal material; The driving mechanism includes two rotating rods (8) symmetrically and rotatably installed inside the combustion chamber (2). On the outer edges of the two rotating rods (8) inside the combustion chamber (2), multiple conveying blades (9) for driving the coal material to tumble are fixedly installed. The upper ends of the two rotating rods (8) penetrate through the inner top wall of the combustion chamber (2) and extend into the first device cavity (4). At the end of the output shaft of the motor (3), a rotating shaft (5) is fixedly installed. One end of the rotating shaft (5) penetrates through the first device cavity (4) and extends into the second device cavity (10). On the outer edge of the rotating shaft (5) inside the first device cavity (4), two worm sleeves (6) are symmetrically and fixedly installed. At the upper ends of the two rotating rods (8), worm wheels (7) are respectively fixedly installed. The two worm wheels (7) are respectively engaged with the two worm sleeves (6); The transmission mechanism includes a first bevel gear (11) fixedly installed at one end of the rotating shaft (5). At the upper end of the second device cavity (10), a guide rod (13) is rotatably installed. On the outer edge of the upper end of the guide rod (13), a second bevel gear (12) is fixedly installed. The second bevel gear (12) is engaged with the first bevel gear (11). At the lower end of the guide rod (13), a reciprocating lead screw (14) is fixedly installed. A lead screw sleeve (15) is sleeved on the outer edge of the reciprocating lead screw (14). On the outside of the lead screw sleeve (15), a fixing block (16) is fixedly installed. At the bottom of the fixing block (16), a fixing rod (17) is fixedly installed. The lower end of the fixing rod (17) penetrates through the bottom wall of the second device cavity (10) and extends into the circular cavity (18); The jet mechanism includes a push block (19) sealed and slidably installed inside the circular cavity (18). The upper and lower surfaces of the push block (19) are both arc-shaped. The lower end of the fixed rod (17) is fixedly connected to the upper surface of the push block (19). A rectangular groove (20) communicating with the circular cavity (18) is formed inside the boiler body (1). A slider (21) is sealed and slidably installed inside the rectangular groove (20). One side of the slider (21) is elastically connected to one side wall of the rectangular groove (20) through two springs (24). A Z-shaped air duct (22) communicating with both the rectangular groove (20) and the circular cavity (18) is formed inside the boiler body (1). An air guide port (23) matching the Z-shaped air duct (22) is formed inside the slider (21). A one-way valve (27) that only allows gas to enter the inside of the circular cavity (18) from the outside is fixedly installed at the bottom of the Z-shaped air duct (22). The motor (3) drives the rotation of the rotating shaft (5) inside the first device cavity (4). Subsequently, the rotating shaft (5) drives the rotation of the two worm sleeves (6) inside the first device cavity (4). The two worm sleeves (6) respectively drive the rotation of the rotating rods (8) inside the two worm wheels (7). Furthermore, the two rotating rods (8) drive the rotation of the conveying blades (9) inside the combustion chamber (2), and then stir the coal material inside the combustion chamber (2), so that the coal material at the bottom of the combustion chamber (2) can roll to the upper middle part of the combustion chamber (2). The rotating shaft (5) drives the rotation of the first bevel gear (11) inside the second device cavity (10). Subsequently, the first bevel gear (11) drives the rotation of the guide rod (13) and the reciprocating lead screw (14) through the second bevel gear (12). The reciprocating lead screw (14) drives the fixed block (16) to move up and down inside the second device cavity (10) through the lead screw sleeve (15). The fixed block (16) drives the fixed rod (17) and the push block (19) to move up and down inside the circular cavity (18). When the push block (19) moves downward, it squeezes the slider (21) to move inside the rectangular groove (20) against the elastic force of the two springs (24). Subsequently, the air guide port (23) inside the slider (21) is no longer communicated with the Z-shaped air duct (22) inside the boiler body (1). The slider (21) closes the middle part of the Z-shaped air duct (22). However, at this time, the push block (19) still has a tendency to move downward. Therefore, the gas inside the circular cavity (18) is compressed. When the push block (19) moves to the bottom of the circular cavity (18), the push block (19) no longer contacts the slider (21). The slider (21) resets under the elastic force of the two springs (24). The air guide port (23) inside the slider (21) is re-communicated with the Z-shaped air duct (22) inside the boiler body (1). Subsequently, the compressed gas inside the circular cavity (18) is sprayed into the inside of the combustion chamber (2) through the Z-shaped air duct (22). A third device cavity (25) is also formed inside the boiler body (1). Liquid water is contained inside the third device cavity (25). The upper end of the third device cavity (25) is communicated with the upper end of the Z-shaped air passage (22) through a plurality of uniformly arranged air vents (26). When the boiler body (1) is working, start the motor (3). The motor (3) drives the rotation of the rotating shaft (5) inside the first device cavity (4). Subsequently, the rotating shaft (5) drives the rotation of the two worm sleeves (6) inside the first device cavity (4). The two worm sleeves (6) respectively drive the rotation of the rotating rods (8) inside the two worm wheels (7). Then, the rotating rods (8) drive the rotation of the conveying blades (9) inside the combustion chamber (2), and then stir the coal material inside the combustion chamber (2), so that the coal material at the bottom of the combustion chamber (2) can roll to the upper middle part of the combustion chamber (2), thereby increasing the contact area between the coal material and the gas. After the motor (3) is started, it drives the rotation of the first bevel gear (11) inside the second device cavity (10) through the rotating shaft (5). Subsequently, the first bevel gear (11) drives the rotation of the guide rod (13) and the reciprocating lead screw (14) through the second bevel gear (12). The reciprocating lead screw (14) drives the fixed block (16) to move up and down inside the second device cavity (10) through the lead screw sleeve (15). The fixed block (16) drives the fixed rod (17) and the push block (19) to move up and down inside the circular cavity (18), thereby completing the power transmission. After the motor (3) is started, the push block (19) moves up and down inside the circular cavity (18). When the push block (19) moves downward, it squeezes the slider (21) to move into the rectangular groove (20) against the elastic force of the two springs (24). Subsequently, the air guide port (23) inside the slider (21) is no longer in communication with the Z-shaped air duct (22) inside the boiler body (1). The slider (21) closes the middle part of the Z-shaped air duct (22). However, at this time, the push block (19) still moves downward. Therefore, the gas inside the circular cavity (18) will be continuously compressed. When the push block (19) moves to the bottom of the circular cavity (18), the push block (19) no longer contacts the slider (21). The slider (21) resets under the elastic force of the two springs (24). The air guide port (23) inside the slider (21) is reconnected to the Z-shaped air duct (22) inside the boiler body (1). Subsequently, the compressed gas inside the circular cavity (18) is sprayed into the combustion chamber (2) through the Z-shaped air duct (22) and makes full contact with the coal material. When the push block (19) moves upward, the slider (21) closes the middle part of the Z-shaped air duct (22) again, so that a negative pressure is formed inside the circular cavity (18). Then, in cooperation with the one-way valve (27), the external gas is re-pumped into the circular cavity (18) to prepare for the next jet of gas. When the gas is sprayed into the combustion chamber (2) through the Z-shaped air duct (22), the flow rate of the gas at the outlet is relatively fast. Thus, it drives the water body inside the third device cavity (25) to enter the Z-shaped air duct (22) through the plurality of ventilation ports (26) and be sprayed out with the gas; The third device cavity (25) is also connected to a water supply device through a pipeline.

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