A combustion furnace

Abstract

The application provides a combustion furnace, and relates to the technical field of combustion furnaces.The combustion furnace comprises a furnace body, an ash cleaning device, a smoke exhaust device and a feeding device.A first combustion chamber and a second combustion chamber are arranged in the furnace body.The ash cleaning device is arranged at the bottom of the furnace body, and is used for cleaning the ash at the bottom of the first combustion chamber.The smoke exhaust device comprises a heat dissipation assembly, a smoke exhaust pipe and a fan;the heat dissipation assembly is connected to the furnace body, and is used for receiving the hot air flow discharged from the second combustion chamber;the smoke exhaust pipe is connected to the heat dissipation assembly and is used for guiding the hot air flow received by the heat dissipation assembly to flow in a preset direction; and the fan is connected to the smoke exhaust pipe and is used for forming an air flow in the preset direction in the smoke exhaust pipe.The feeding device is connected to the furnace body and is used for feeding the first combustion chamber.The combustion furnace provided by the application can solve the technical problems in the prior art, such as easy clogging and coking of the biomass combustion machine, high failure rate and low biomass particle combustion efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of combustion furnace, in particular to a combustion furnace. BACKGROUND

[0002] The biomass combustion machine is a biomass semi-gasification automatic control combustion machine, which uses organic biomass such as biomass particles, wood chips, wood powder and sawdust as fuel.

[0003] In the prior art, the biomass combustion machine is prone to coking and blocking, has a high failure rate, and is prone to dust accumulation in the radiator, and there is a very obvious smoke discharge phenomenon at the chimney opening. The heat exchange rate of the radiator is also reduced, which leads to an increase in air resistance in the furnace body, low combustion efficiency of biomass particles, and the push rod ash removal device continuously pushes the biomass combustion particles on the tray forward, which destroys the combustion layer and causes the incompletely burned biomass particles to fall into the furnace bottom, thereby increasing the overall consumption of fuel. SUMMARY

[0004] The technical problem solved by the present application is how to improve the technical problems of the prior art, such as the biomass combustion machine being prone to coking and blocking, having a high failure rate, and having low combustion efficiency of biomass particles.

[0005] The embodiments of the present application can be implemented as follows:

[0006] The present application provides a combustion furnace, comprising:

[0007] A furnace body is provided with a first combustion chamber and a second combustion chamber, the first combustion chamber and the second combustion chamber are communicated, and the first combustion chamber is located below the second combustion chamber;

[0008] An ash removal device is arranged at the bottom of the furnace body and located at the bottom of the first combustion chamber, and the ash removal device is used for cleaning the ash at the bottom of the first combustion chamber;

[0009] A smoke exhaust device is provided, which comprises a heat dissipation assembly, a smoke exhaust pipe and a fan; the heat dissipation assembly is connected to the furnace body, and the heat dissipation assembly is used for receiving the hot gas flow discharged from the second combustion chamber; the smoke exhaust pipe is connected to the heat dissipation assembly and is used for guiding the hot gas flow received by the heat dissipation assembly in a predetermined direction; the fan is connected to the smoke exhaust pipe and is used for forming an air flow in the smoke exhaust pipe along the predetermined direction;

[0010] A feeding device is connected to the furnace body and is used for feeding the first combustion chamber.

[0011] Optionally, the furnace body comprises a first combustion section and a second combustion section arranged above the first combustion section; the first combustion chamber is arranged inside the first combustion section, and the second combustion chamber is arranged inside the second combustion section; the first combustion section is in a cylindrical shape, and the top of the second combustion section is arched in a spherical shape.

[0012] Optionally, the combustion furnace further comprises a secondary air inlet pipe and a burner; the burner is arranged at the top of the first combustion chamber; the secondary air inlet pipe is connected to the top of the first combustion section and accesses the internal passage of the burner for guiding air into the internal passage of the burner.

[0013] Optionally, the bottom of the second combustion chamber is further provided with a flow guide structure connected to the burner; the flow guide structure is formed with a flow guide passage with a gradually decreasing passage area from top to bottom, and the flow guide passage accesses the internal passage of the burner.

[0014] Optionally, the inner wall of the flow guide passage is formed in a spherical curved surface.

[0015] Optionally, the outer portion of the second combustion section is provided with a plurality of spaced first fins.

[0016] Optionally, the heat dissipation assembly comprises two converging devices, a plurality of transverse pipes and a flow guide member; the two ends of the transverse pipes are respectively connected to the two converging devices, and the internal passages of the plurality of transverse pipes are in communication with the internal space of the converging devices; the flow guide member is arranged inside the converging devices, and the flow guide member is at least partially curved in an arc shape; the flow guide member is used for receiving the airflow guided out by at least one of the transverse pipes and guiding the airflow to at least one other of the transverse pipes, and the plurality of transverse pipes form at least one S-shaped passage; one of the converging devices is connected to the furnace body to receive the airflow guided out by the second combustion chamber, and the other converging device is connected to the exhaust pipe to guide the airflow out of the exhaust pipe.

[0017] Optionally, the exhaust pipe comprises a first exhaust section and a second exhaust section in communication with each other; one end of the first exhaust section accesses the heat dissipation assembly, and one end of the second exhaust section accesses the other end of the first exhaust section; the first exhaust section and the second exhaust section are arranged in an L shape; the fan is connected to the connection between the second exhaust section and the first exhaust section, and the fan is used to form an airflow flowing towards the other end of the second exhaust section.

[0018] Optionally, the ash removal device comprises a bearing plate and a cam device; the bearing plate is used to bear the material for combustion, one side of the bearing plate is rotatably connected to the furnace body, and the bearing plate is provided with a plurality of leakage holes penetrating through the bearing plate; the cam device is arranged at the bottom of the bearing plate and is used to repeatedly lift and disengage the bearing plate.

[0019] Optionally, the number of the bearing plates is two or more; the outer sides of the two or more bearing plates are rotatably connected with the furnace body; the cam device is arranged at a position between the two or more bearing plates for jacking up the two or more bearing plates.

[0020] The combustion furnace provided by the present application has the following beneficial effects compared with the prior art:

[0021] In the combustion furnace, the first combustion chamber and the second combustion chamber are arranged in the furnace body in a vertical manner. After the material in the first combustion chamber is combusted, the incompletely combusted part enters the second combustion chamber again for combustion, so that the material can be fully combusted. In addition, the fan is arranged on the smoke exhaust pipe. The fan can form an airflow in the smoke exhaust pipe in the same direction as the smoke exhaust direction, so that the airflow in the smoke exhaust pipe is quickly exhausted. On the one hand, the circulation of the airflow in the furnace body is promoted, so that new air can be quickly supplied to the furnace body, which is beneficial to the full combustion of the material. On the other hand, the high-temperature airflow can be quickly exhausted, which is beneficial to the improvement of the heat dissipation efficiency of the combustion furnace. Therefore, the combustion efficiency of the material can be improved, the material can be fully combusted, and the problems of material blocking and coking can be avoided, so that the failure rate can be reduced. In addition, due to the full combustion of the material, the black smoke in the prior art can be improved, and the problem of dust accumulation in the heat dissipation assembly can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Figure 1 FIG. 1 is a structural schematic diagram of a combustion furnace provided in an embodiment of the present application;

[0024] Figure 2 FIG. 2 is another structural schematic diagram of a combustion furnace provided in an embodiment of the present application.

[0025] Legend: combustion furnace 10, furnace body 100, first combustion section 110, first combustion chamber 111, second combustion section 120, second combustion chamber 121, flow guide structure 122, combustor 130, secondary air inlet pipe 140, dust removal device 200, bearing plate 210, cam device 220, smoke exhaust device 300, heat dissipation assembly 310, flow collecting device 311, transverse pipe 312, smoke exhaust pipe 320, first smoke exhaust section 321, second smoke exhaust section 322, inclined pipe 323, fan 330, material feeding device 400. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 Structure diagram of the combustion furnace provided in the embodiments of the present application;

[0028] Figure 2 Structure diagram of the combustion furnace provided in the embodiments of the present application.

[0029] Icon: combustion furnace 10, furnace body 100, first combustion section 110, first combustion chamber 111, second combustion section 120, second combustion chamber 121, flow guide structure 122, combustor 130, secondary air inlet pipe 140, ash removal device 200, bearing plate 210, cam device 220, smoke exhaust device 300, heat dissipation assembly 310, current collection device 311, transverse pipe 312, smoke exhaust pipe 320, first smoke exhaust section 321, second smoke exhaust section 322, inclined pipe 323, fan 330, feeding device 400.

[0030] Please refer to Figure 1 and Figure 2 In the embodiments of the present application, a combustion furnace 10 is provided, which can be applied to the combustion treatment of biomass, and the combustion furnace 10 provided in the embodiments of the present application can improve the technical problems of the biomass combustion machine in the prior art, such as easy coking and high failure rate, and low combustion efficiency of biomass particles. That is, the combustion furnace 10 provided in the embodiments of the present application can improve the combustion efficiency of biomass, so that the biomass is fully combusted, pollution is reduced, and energy consumption is reduced.

[0031] In the embodiment, the combustion furnace 10 comprises a furnace body 100, an ash cleaning device 200, an exhaust device 300 and a feeding device 400. The furnace body 100 is provided with a first combustion chamber 111 and a second combustion chamber 121, the first combustion chamber 111 and the second combustion chamber 121 are communicated, and the first combustion chamber 111 is below the second combustion chamber 121. The ash cleaning device 200 is arranged at the bottom of the furnace body 100 and at the bottom of the first combustion chamber 111, and is used for cleaning the ash at the bottom of the first combustion chamber 111. The exhaust device 300 comprises a heat dissipation assembly 310, an exhaust pipe 320 and a fan 330; the heat dissipation assembly 310 is connected to the furnace body 100 and is used for receiving the hot gas flow discharged from the second combustion chamber 121; the exhaust pipe 320 is connected to the heat dissipation assembly 310 and is used for discharging the hot gas flow received by the heat dissipation assembly 310 in a preset direction; and the fan 330 is connected to the exhaust pipe 320 and is used for forming the gas flow in the exhaust pipe 320 in the preset direction. The feeding device 400 is connected to the furnace body 100 and is used for feeding the first combustion chamber 111.

[0032] It is worth noting that the feeding device 400 and the furnace body 100 form an integral whole, and the feeding of the furnace body 100 can be realized in the way that the feeding device 400 is directly supplemented with materials. When the combustion furnace 10 is used for biomass combustion, the materials (i.e. the biomass to be combusted) are introduced into the first combustion chamber 111 through the feeding device 400, and when there is a sufficient amount of materials in the first combustion chamber 111, the materials are ignited by an ignition device (the ignition device extends into the first combustion chamber 111 from the outside of the furnace body 100 through the peripheral wall of the furnace body 100) on the furnace body 100. Preferably, during the combustion of the materials, the feeding device 400 can continuously supplement the materials into the first combustion chamber 111 at a certain rate.

[0033] During the combustion of the materials, the incompletely combusted part flows to the second combustion chamber 121 along with the gas flow to be combusted again, so as to realize the complete combustion of the materials. The ash formed by the combustion of the materials is cleaned and discharged from the bottom of the first combustion chamber 111 by the ash cleaning device 200; and the gas flow generated by the combustion is discharged through the exhaust pipe 320 after passing through the heat dissipation assembly 310. It is worth noting that the gas flow in the exhaust pipe 320 formed by the fan 330 in the same direction as the exhaust direction can promote the rapid discharge of the hot gas flow generated by the combustion, and in this way, the external air can be rapidly sucked into the furnace body 100, so as to ensure that there is sufficient oxygen in the furnace body 100, which is beneficial to the complete combustion of the materials.

[0034] As described above, in the combustion furnace 10, the first combustion chamber 111 and the second combustion chamber 121 are arranged in the furnace body 100 in a vertical manner. After the material in the first combustion chamber 111 is combusted, the incompletely combusted part enters the second combustion chamber 121 along the airflow to be combusted again, so that the material can be fully combusted. In addition, the fan 330 is arranged on the smoke exhaust pipe 320, and the fan 330 can form an airflow in the smoke exhaust pipe 320 in the same direction as the smoke exhaust direction, so that the airflow in the smoke exhaust pipe 320 is quickly exhausted. On the one hand, the circulation of the airflow in the furnace body 100 is promoted, and new air is quickly supplied to the furnace body 100, which is beneficial to the full combustion of the material. On the other hand, the high-temperature airflow is quickly exhausted, which is beneficial to the improvement of the heat dissipation efficiency of the combustion furnace 10. Therefore, the combustion efficiency of the material can be improved, the material can be fully combusted, the problems of material blocking and coking can be avoided, and the failure rate can be reduced. In addition, due to the full combustion of the material, the black smoke in the prior art can be improved, and the problem of dust accumulation in the heat dissipation assembly 310 can be improved.

[0035] Optionally, in the embodiment, the furnace body 100 includes a first combustion section 110 and a second combustion section 120 arranged above the first combustion section 110. The first combustion chamber 111 is arranged in the first combustion section 110, and the second combustion chamber 121 is arranged in the second combustion section 120. The first combustion section 110 is in a columnar shape, and the top of the second combustion section 120 is arched in a spherical shape. Generally, the biomass fuel combusted in the first combustion chamber 111 is in a solid state, and after entering the second combustion chamber 121, most of the combustion material is lighter material floating in the airflow. The spherical top of the second combustion chamber 121 can expand the internal space volume of the second combustion chamber 121, so that the airflow stays in the second combustion chamber 121 for a sufficient time to fully combust the remaining material in the airflow, and then the combustion material is discharged through the heat dissipation assembly 310.

[0036] Further, in the embodiment, the combustion furnace 10 further includes a secondary air inlet pipe 140 and a burner 130. The burner 130 is arranged at the top of the first combustion chamber 111. The secondary air inlet pipe 140 is connected to the top of the first combustion section 110 and is connected to the internal passage of the burner 130 to introduce air into the internal passage of the burner 130. The burner 130 can form a flame, which is beneficial to the combustion of the remaining material in the second combustion chamber 121. In addition, the secondary air inlet pipe 140 can continuously introduce external air into the internal passage of the burner 130, which is beneficial to the sufficient supply of oxygen and the full combustion of the remaining material. It is worth noting that, due to the arrangement of the fan 330, a negative pressure can be formed in the furnace body 100, so that the secondary air inlet pipe 140 can quickly supply air.

[0037] In the embodiment, the bottom of the second combustion chamber 121 is further provided with a flow guide structure 122 connected to the burner 130; the flow guide structure 122 is formed with flow guide channels with gradually decreasing cross-sectional areas from top to bottom, which are connected to the internal channels of the burner 130. The flow guide structure 122 can be used to support the burner 130, which can facilitate the connection of the burner 130 and the second combustion chamber 121, and facilitate the completion of the combustion of the materials in the second combustion chamber 121 by the flame formed on the burner 130; on the other hand, the wide-mouthed channels can also make the remaining materials quickly spread when entering the second combustion chamber 121, so as to ensure that the materials are fully contacted with air, so as to achieve the purpose of full combustion.

[0038] Further, the inner wall of the flow guide channel is formed as a spherical curved surface. Of course, in other embodiments, the inner wall of the flow guide channel can also be formed as a frustoconical curved surface.

[0039] In order to improve the heat dissipation efficiency of the furnace body 100, the outer portion of the second combustion section 120 is optionally provided with a plurality of spaced first fins. Since the combustion reaction is formed in the second combustion chamber 121, and the heat of the first combustion chamber 111 also rises to the second combustion chamber 121 in large amount, the temperature of the second combustion chamber 121 is relatively high. By providing the first fins on the outer portion of the second combustion section 120, the heat dissipation area of the second combustion section 120 can be expanded by the first fins, so as to improve the heat dissipation efficiency.

[0040] Of course, in other embodiments, the first fins can also be omitted.

[0041] In the embodiment, the heat dissipation assembly 310 includes two flow collecting devices 311, a plurality of transverse pipes 312 and a flow guide member; the two ends of the transverse pipes 312 are respectively connected to the two flow collecting devices 311, and the internal channels of the plurality of transverse pipes 312 are in communication with the internal spaces of the flow collecting devices 311; the flow guide member is arranged in the flow collecting device 311, and the flow guide member is at least partially curved to form an arc shape, the flow guide member is used to receive the airflow discharged by at least one transverse pipe 312 and guide the airflow to at least one other transverse pipe 312, and the plurality of transverse pipes 312 form at least one S-shaped channel; one of the flow collecting devices 311 is connected to the furnace body 100 to receive the airflow discharged by the second combustion chamber 121, and the other flow collecting device 311 is connected to the exhaust pipe 320 to discharge the airflow to the exhaust pipe 320.

[0042] In the embodiment, the heat dissipation assembly 310 is arranged in the second combustion section 120 of the furnace body 100. Figure 2For the example case, it can be seen that the plurality of transverse pipes 312 are divided into three groups of pipes, and the three groups of pipes are arranged in the up-down direction; in this embodiment, each group of pipes has a plurality of transverse pipes 312 (of course, in other embodiments, only one or two transverse pipes 312 can also be arranged in each group of pipes). And, each of the flow converging devices 311 is provided with a flow guide, which is arranged at the bottom of the internal space of the left flow converging device 311 and corresponds to the lower group of pipes and the middle group of pipes, so that the air flow introduced by the lower group of pipes is guided by the flow guide to the middle group of pipes; while the flow guide arranged in the right flow converging device 311 is arranged at the top of the internal space of the flow converging device 311 and corresponds to the middle group of pipes and the upper group of pipes, so that the air flow discharged by the middle group of pipes is guided by the flow guide to the upper group of pipes. In addition, the top part of the internal space of the left flow converging device 311 corresponds to the smoke exhaust pipe 320 and the upper group of pipes, so as to receive the air flow discharged by the upper group of pipes and introduce it into the smoke exhaust pipe 320 to discharge the air flow; while the bottom part of the internal space of the right flow converging device 311 corresponds to the lower group of pipes and the pipe connected to the furnace body 100, so as to receive the air flow discharged by the furnace body 100 and guide it to the lower group of pipes. Thus, the air flow formed by the combustion in the furnace body 100 flows through the right flow converging device 311, the lower group of pipes, the left flow converging device 311, the middle group of pipes, the right flow converging device 311, the upper group of pipes, the left flow converging device 311 and the smoke exhaust pipe 320 in turn, and then is discharged.

[0043] Based on this, the S-shaped channel formed by the plurality of transverse pipes 312 can make the high-temperature air flow generated by combustion complete heat exchange in a longer heat dissipation channel, which can reduce the temperature of the exhaust smoke and is beneficial to rapid heat dissipation. In addition, the arrangement of the arc-shaped flow guide can make the flow of the air flow more smooth, reduce air resistance, and be beneficial to smooth smoke exhaust, and further be beneficial to smooth replenishment of new air into the furnace body 100, thereby improving the combustion efficiency of the material.

[0044] In addition, in order to improve the heat dissipation efficiency of the heat dissipation assembly 310, in this embodiment, a plurality of spaced second fins are arranged on the outer periphery of the transverse pipe 312 to quickly complete the heat dissipation of the transverse pipe 312.

[0045] In this embodiment, the smoke exhaust pipe 320 includes a first smoke exhaust section 321 and a second smoke exhaust section 322 which are in communication with each other; one end of the first smoke exhaust section 321 is connected to the heat dissipation assembly 310, and the other end of the second smoke exhaust section 322 is connected to the other end of the first smoke exhaust section 321; the first smoke exhaust section 321 and the second smoke exhaust section 322 are arranged in an L shape; the fan 330 is connected to the connection between the second smoke exhaust section and the first smoke exhaust section 321, and the fan 330 is used to form an air flow flowing toward the other end of the second smoke exhaust section 322. As Figure 1The first smoke discharging section 321 is arranged transversely and connected to the left flow collecting device 311, and the second smoke discharging section 322 is arranged longitudinally and the fan 330 is arranged at the bottom of the second smoke discharging section 322. The second smoke discharging section 322 discharges smoke upwardly, and the fan 330 forms upward air flow, which promotes the discharge of air flow and facilitates the formation of negative pressure in the furnace body 100, so as to facilitate the supplement of new air from outside to the inside of the furnace body 100.

[0046] In addition, in the embodiment, the second smoke discharging section 322 is further provided with a slant pipe 323, the internal passage of the slant pipe 323 is communicated with the internal passage of the second smoke discharging section 322, and the slant pipe 323 is arranged obliquely downward. In the case that the fan 330 forms air flow, the air flow flowing in the first smoke discharging section 321 forms negative pressure, so that the slant pipe 323 inhales air from outside to balance the internal air pressure of the first smoke discharging section 321 and the external air pressure, which is beneficial to the smooth discharge of smoke and the improvement of smoke discharging efficiency. In this way, the efficiency of the secondary air inlet pipe 140 to the furnace body 100 can be further improved, so as to ensure sufficient oxygen in the furnace body 100 for material combustion, which is beneficial to the improvement of the combustion efficiency of the material. Of course, in other embodiments, the slant pipe 323 can be omitted.

[0047] The ash removal device 200 comprises a bearing plate 210 and a cam device 220. The bearing plate 210 is used for bearing the material to be combusted, one side of the bearing plate 210 is rotatably connected to the furnace body 100, and the bearing plate 210 is provided with a plurality of leakage holes penetrating through the bearing plate 210. The cam device 220 is arranged at the bottom of the bearing plate 210 and is used for repeatedly lifting and separating from the bearing plate 210. When the feeding device 400 guides the material into the inside of the furnace body 100, the material is borne by the bearing plate 210 and is combusted on the bearing plate 210 in the case that the material is ignited. In addition, the ash generated by the combustion of the material is also borne by the bearing plate 210.

[0048] In the case that the cam device 220 operates, the cam device 220 repeatedly lifts and separates from the bearing plate 210, so that the bearing plate 210 repeatedly shakes up and down, and the ash generated by combustion can be shaken out of the leakage holes through shaking, so as to realize ash removal. In the cleaning process, the ash directly leaks out of the bottom of the bearing plate 210, which can avoid affecting the combustion layer on the top of the material pile and ensure the normal operation of the combustion effect, thereby ensuring the sufficient combustion of the material.

[0049] It is worth noting that, in order to avoid that the shaking action is too violent to affect the combustion layer of the material, in the embodiment, the height of the cam device 220 lifting the bearing plate 210 is not too high, for example, the lifting height can be selected within the range of less than or equal to 8 cm according to the actual situation.

[0050] Further, the number of the bearing plates 210 is two or more; the outer sides of the two or more bearing plates 210 are rotatably connected with the furnace body 100; the cam device 220 is correspondingly arranged at the position between the two or more bearing plates 210 for lifting the two or more bearing plates 210. In the embodiment, the number of the bearing plates 210 is two. The two bearing plates 210 are rotatably connected with the furnace body 100 at the sides away from each other, and the cam of the cam device 220 corresponds to the position between the two bearing plates 210. During the operation of the cam device 220, the cam repeatedly lifts and releases the middle position of the two bearing plates 210, so as to realize the shaking of the two bearing plates 210. Of course, when the cam device 220 lifts the bearing plates 210 to the highest position, the width of the gap between the two bearing plates 210 is less than or equal to the width of the leakage hole, so that the material can be prevented from leaking out of the gap between the two bearing plates 210.

[0051] Of course, in other embodiments, the number of the bearing plates 210 can also be three, four or more. The plurality of bearing plates 210 can be arranged along the circumferential path, and the cam of the cam device 220 corresponds to the central position of the plurality of bearing plates 210, so that the cam can simultaneously lift the plurality of bearing plates 210.

[0052] In summary, in the combustion furnace 10, the first combustion chamber 111 and the second combustion chamber 121 are arranged in the furnace body 100. After the material in the first combustion chamber 111 is combusted, the incompletely combusted part enters the second combustion chamber 121 again to be combusted, so as to realize the complete combustion of the material. Further, the fan 330 is arranged on the smoke exhaust pipe 320. The fan 330 can form the airflow in the smoke exhaust pipe 320 in the same direction as the smoke exhaust direction, so that the airflow in the smoke exhaust pipe 320 is quickly exhausted. On the one hand, the circulation of the airflow in the furnace body 100 is promoted, so as to quickly supplement the new air into the furnace body 100, which is beneficial to the complete combustion of the material. On the other hand, the high-temperature airflow is quickly exhausted, which is beneficial to the improvement of the heat dissipation efficiency of the combustion furnace 10. Based on this, the combustion efficiency of the material can be improved, the material can be completely combusted, the problems of blocking and coking can be avoided, and the failure rate can be reduced. Further, due to the complete combustion of the material, the black smoke in the prior art can be improved, and the problem of dust accumulation in the heat dissipation assembly 310 can be improved. In addition, through the arrangement of the cam device 220 and the rotatable bearing plate 210, the dust on the bearing plate 210 can be cleaned through shaking, the influence on the combustion layer of the material can be avoided, the normal combustion can be ensured, the material can be completely combusted, and the combustion efficiency can be improved.

[0053] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A combustion furnace (10), characterized in that, include: The furnace body (100) is provided with a first combustion chamber (111) and a second combustion chamber (121), the first combustion chamber (111) and the second combustion chamber (121) are connected, and the first combustion chamber (111) is located below the second combustion chamber (121); A dust removal device (200) is provided at the bottom of the furnace body (100) and located at the bottom of the first combustion chamber (111). The dust removal device (200) is used to clean the dust at the bottom of the first combustion chamber (111). The exhaust device (300) includes a heat dissipation assembly (310), an exhaust pipe (320), and a fan (330); the heat dissipation assembly (310) is connected to the furnace body (100) and is used to receive the hot airflow discharged from the second combustion chamber (121); the exhaust pipe (320) is connected to the heat dissipation assembly (310) and is used to discharge the hot airflow received by the heat dissipation assembly (310) in a preset direction; the fan (330) is connected to the exhaust pipe (320) and is used to form an airflow in the exhaust pipe (320) in the preset direction. A feeding device (400) is connected to the furnace body (100) and is used to feed material into the first combustion chamber (111); The exhaust pipe (320) includes a first exhaust section (321) and a second exhaust section (322) that are interconnected. The second exhaust section (322) is also provided with an inclined pipe (323). The internal channel of the inclined pipe (323) is connected to the internal channel of the second exhaust section (322). The inclined pipe (323) is inclined downward. When the fan (330) generates airflow, the airflow flowing inside the first exhaust section (321) forms a negative pressure, which causes the inclined pipe (323) to draw in external air to balance the internal air pressure of the first exhaust section (321) and the external air pressure.

2. The combustion furnace (10) according to claim 1, characterized in that, The furnace body (100) includes a first combustion section (110) and a second combustion section (120) disposed above the first combustion section (110); the first combustion chamber (111) is disposed inside the first combustion section (110), and the second combustion chamber (121) is disposed inside the second combustion section (120); the first combustion section (110) is cylindrical, and the top of the second combustion section (120) is arched into a spherical shape.

3. The combustion furnace (10) according to claim 2, characterized in that, The combustion furnace (10) also includes a secondary air inlet pipe (140) and a burner (130); the burner (130) is located at the top of the first combustion chamber (111); the secondary air inlet pipe (140) is connected to the top of the first combustion section (110) and enters the internal channel of the burner (130) for introducing air into the internal channel of the burner (130).

4. The combustion furnace (10) according to claim 3, characterized in that, The bottom of the second combustion chamber (121) is also provided with a flow guide structure (122), which is connected to the burner (130); a flow guide channel with an area gradually decreasing from top to bottom is formed on the flow guide structure (122), and the flow guide channel is connected to the internal channel of the burner (130).

5. The combustion furnace (10) according to claim 4, characterized in that, The inner wall of the flow channel forms a spherical curved surface.

6. The combustion furnace (10) according to claim 2, characterized in that, The exterior of the second combustion section (120) is provided with a plurality of spaced first fins.

7. The combustion furnace (10) according to claim 1, characterized in that, The heat dissipation assembly (310) includes two confluence devices (311), multiple transverse pipes (312), and a flow guide. The two ends of the transverse pipes (312) are respectively connected to the two confluence devices (311), and the internal channels of the multiple transverse pipes (312) are all connected to the internal space of the confluence device (311). The flow guide is located inside the confluence device (311), and the flow guide is at least partially curved into an arc shape. The flow guide is used to receive the airflow discharged from at least one transverse pipe (312) and guide it to at least another transverse pipe (312), and the multiple transverse pipes (312) form at least one S-shaped channel. One of the confluence devices (311) is connected to the furnace body (100) to receive the airflow discharged from the second combustion chamber (121), and the other confluence device (311) is connected to the exhaust pipe (320) to discharge airflow to the exhaust pipe (320).

8. The combustion furnace (10) according to claim 1, characterized in that, The exhaust pipe (320) includes a first exhaust section (321) and a second exhaust section (322) that are interconnected; one end of the first exhaust section (321) is connected to the heat dissipation component (310), and one end of the second exhaust section (322) is connected to the other end of the first exhaust section (321); the first exhaust section (321) and the second exhaust section (322) are arranged in an L-shape; the fan (330) is connected at the connection between the second exhaust section (322) and the first exhaust section (321), and the fan (330) is used to generate an airflow toward the other end of the second exhaust section (322).

9. The combustion furnace (10) according to claim 1, characterized in that, The ash removal device (200) includes a support plate (210) and a cam device (220); the support plate (210) is used to support the material for combustion, and one side of the support plate (210) is rotatably connected to the furnace body (100). The support plate (210) is provided with a plurality of holes penetrating the support plate (210); the cam device (220) is located at the bottom of the support plate (210) and is used to repeatedly lift and detach from the support plate (210).

10. The combustion furnace (10) according to claim 9, characterized in that, There are two or more support plates (210); the outer sides of the two or more support plates (210) are rotatably connected to the furnace body (100); the cam device (220) is located between the two or more support plates (210) to lift the two or more support plates (210).

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