Kiln with energy recovery and supporting device thereof

Abstract

This application discloses a kiln with energy recovery and its supporting device, belonging to the field of kiln technology. It includes a heat-conducting component, comprising a kiln body with an exhaust channel. A heat-conducting cylinder for absorbing heat from the exhaust gas is installed within the exhaust channel. A heat-conducting ring is installed on the side of the heat-conducting cylinder, and two heat-conducting plates for heating the ash pit are installed on the heat-conducting ring. By absorbing heat from the exhaust gas through the heat-conducting cylinder, the heat-conducting liquid inside absorbs heat and flows from the high-temperature zone to the low-temperature zone, converting thermal energy into the kinetic energy of the liquid flow. The heat-conducting liquid in the low-temperature zone is then replenished into the heat-conducting cylinder, moving from the heat-conducting cylinder to the heat-conducting plates to heat the ash pit. This preheats the air entering the device within the ash pit, enhancing combustion efficiency and reducing fuel consumption before it enters the combustion chamber, thus recovering and utilizing the heat from the exhaust gas.

Description

Technical Field

[0001] This application relates to the field of kiln technology, and more specifically, to a kiln with energy recovery and its supporting device. Background Technology

[0002] In the industrial production sector, kilns, as indispensable thermal equipment, are widely used in many industries such as ceramics, metallurgy, and building materials. However, kilns consume a large amount of energy and generate a large amount of high-temperature exhaust gas during operation. This exhaust gas contains considerable heat energy. Direct emission of this gas would not only cause serious energy waste but also exacerbate the environmental burden. Therefore, effectively recovering and utilizing the heat energy in kiln exhaust gas, improving energy efficiency, reducing energy consumption, and reducing pollutant emissions have become important issues that urgently need to be addressed in the current industrial sector.

[0003] Currently, although there are some attempts to recover heat energy from kiln exhaust gas in existing technologies, there are still many shortcomings. Traditional heat recovery devices often only contact the exhaust gas through simple heat exchange components. Due to the short residence time of the exhaust gas in the device and the limited contact area with the heat exchange components, a large amount of heat energy is not effectively absorbed and is discharged with the exhaust gas, resulting in a waste of energy. The absorption of heat in the exhaust gas is not sufficient, and the energy recovery efficiency is low.

[0004] In view of this, we propose a kiln with energy recovery and its supporting device. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a kiln with energy recovery and its supporting device, which solves the technical problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] First aspect: The technical solution of this application provides a kiln with energy recovery, including a heat-conducting component, which includes a kiln body. The kiln body has an exhaust channel, and a heat-conducting cylinder for absorbing heat in the exhaust gas is arranged inside the exhaust channel. A heat-conducting ring is arranged on the side of the heat-conducting cylinder. Two heat-conducting plates for heating the inside of the ash pit are arranged on the heat-conducting ring. A flow-limiting cylinder for limiting the flow of exhaust gas is arranged inside the heat-conducting plate. A first heat-conducting component for heat conduction is arranged inside the flow-limiting cylinder. A second heat-conducting component is arranged inside the heat-conducting cylinder. A transmission component for driving the second heat-conducting component to move inside the heat-conducting cylinder is arranged on the heat-conducting ring. A first sliding groove is formed on the inner wall of the exhaust channel.

[0009] The cleaning assembly includes a central rod disposed within a flow-limiting cylinder. A scraper for cleaning dust adhering to the inner wall of a second heat-conducting assembly is disposed on the side of the central rod. A second sliding groove is provided inside the central rod, and a vibration assembly for driving the scraper to vibrate is disposed inside the central rod.

[0010] By adopting the above technical solution and setting up heat-conducting components, heat in the exhaust gas can be recovered and utilized.

[0011] As an optional solution to the technical solution in this application, the kiln body includes a base, an air inlet is provided at the top of the base, an ash pit is provided below the air inlet, a grate is provided between the air inlet and the ash pit, a combustion chamber is provided on the side of the air inlet, a kiln roof is provided at the top of the base, a heat-conducting ring and a heat-conducting plate are both provided inside the base, the heat-conducting plate extends through the inner wall of the base into the interior of the ash pit, the combustion chamber is located inside the kiln roof, and the exhaust channel is provided inside the base.

[0012] By adopting the above technical solution, the heat-conducting plate located inside the ash pit can conduct the heat energy absorbed by the heat-conducting cylinder to the ash pit, thereby preheating the incoming air.

[0013] As an optional solution to the technical solution of this application, the first heat-conducting component includes a support plate fixedly connected to the side of the heat-conducting cylinder, a flow-guiding groove is provided on the inner wall of the flow-limiting cylinder, an inlet is provided at the bottom of the flow-limiting cylinder, a first heat-conducting groove is provided inside the flow-limiting cylinder, and an outlet is provided on both sides of the flow-limiting cylinder.

[0014] By adopting the above technical solution, the flow restrictor can be used to limit the flow of exhaust gas.

[0015] As an optional solution to the technical solution of this application, the guide channel is spiral in shape, the liquid inlet is connected to the liquid outlet through the first heat conduction channel, both the liquid inlet and the liquid outlet are connected to the interior of the heat conduction cylinder, the flow limiting cylinder is fixedly connected to the support plate, and the heat conduction cylinder, the heat conduction plate and the flow limiting cylinder are all made of heat-conducting materials.

[0016] By adopting the above technical solution, the spiral guide channel can guide the exhaust gas and increase the contact area and contact time with the exhaust gas.

[0017] As an optional solution to the technical solution of this application, the transmission assembly includes a blade rotatably connected inside the heat-conducting ring and a drive gear disposed above the heat-conducting ring. A bevel gear is fixedly connected to the side of the blade, a first driven gear is meshed with the side of the drive gear, a first defective gear is fixedly connected to the bottom of the first driven gear, a first transmission gear is meshed with the side of the first driven gear away from the drive gear, a second driven gear is meshed with the side of the first transmission gear away from the first driven gear, and a second defective gear is fixedly connected to the bottom of the second driven gear.

[0018] By adopting the above technical solution, the kinetic energy of the heat transfer fluid flowing in the heat transfer ring can be converted into the mechanical energy of the blade rotation by setting blades inside the heat transfer ring.

[0019] As an optional solution to the technical solution of this application, the second heat-conducting component includes a sliding cylinder slidably connected inside the heat-conducting cylinder. The sliding cylinder has a second heat-conducting groove inside. Three telescopic connecting pipes are fixedly connected to the side of the sliding cylinder. A rotating cylinder is rotatably connected inside the sliding cylinder. A guide vane is fixedly connected inside the rotating cylinder. A rack is fixedly connected to the top of the sliding cylinder. An elastic element is provided on the side of the rack. A heat-insulating film for heat insulation is provided between the elastic element and the sliding cylinder.

[0020] By adopting the above technical solution, an elastic element is set to buffer the movement of the sliding cylinder.

[0021] As an optional solution to the technical solution of this application, the rack is slidably connected to the inner wall of the first sliding groove, and the rack is elastically connected to the inner wall of the first sliding groove through an elastic element. The two ends of the heat insulation film are fixedly connected to the rack and the inner wall of the first sliding groove, respectively. The second heat-conducting groove communicates with the interior of the heat-conducting cylinder through three telescopic connecting pipes. The sliding cylinder and the rotating cylinder are both located between the flow-limiting cylinder and the heat-conducting cylinder. The guide vane is located inside the flow-limiting cylinder. The rotating cylinder and the guide vane are rotatably connected to the flow-limiting cylinder. The outer wall dimension of the guide vane... The dimensions of the guide vane are adapted to the inner wall of the guide channel, and the outer side of the guide vane is in contact with the inner wall of the guide channel. The side of the first incomplete gear meshes with the rack. The sliding cylinder, rotating cylinder, and guide vane are all made of heat-conducting materials. The telescopic connecting pipe is made of high-temperature resistant metal material. The dimensions of the inner wall of the heat-conducting cylinder are adapted to the dimensions of the exhaust channel. The dimensions of the guide vane and the guide channel are both smaller than the dimensions of the exhaust channel. The second incomplete gear is located on the side of the rack away from the first incomplete gear. The end of the scraper away from the central rod is in contact with the inner wall of the guide vane.

[0022] By adopting the above technical solution, the inner wall of the guide groove will be cleaned during the process of the guide vane rotating and resetting along the spiral direction.

[0023] As an optional solution to the technical solution of this application, the vibration component includes a slider fixedly connected inside the sliding cylinder, the top of the slider is evenly provided with a plurality of toothed grooves, a second transmission gear is provided above the slider, and a cam is fixedly connected to the side of the second transmission gear.

[0024] By adopting the above technical solution, a cam is set to strike the scraper, causing it to vibrate.

[0025] As an optional solution to the technical solution of this application, the size of the slider is adapted to the size of the second slide groove. The size of both the slider and the slide groove is "T" shaped. The slider and the second slide groove are slidably connected. The second transmission gear is rotatably connected to the inner wall of the central rod. The bottom of the second transmission gear extends through the inner wall of the central rod into the interior of the second slide groove. The second transmission gear meshes with the tooth groove. The cam is located above the scraper. The scraper is made of a high-toughness and high-elasticity material. The central rod and the slider are both made of high-temperature resistant materials.

[0026] By adopting the above technical solution, the scraper is used to clean the inner wall of the guide vane.

[0027] Secondly, the technical solution of this application provides a support device installed inside the kiln described in the first aspect, including a corbel support column set on the top of the base, the corbel support column being located inside the kiln top, and a plurality of right-angled trapezoidal bricks being set on the side of the corbel support column away from the kiln top.

[0028] By adopting the above technical solution, the bricks on the corbel support column are made of right-angled trapezoidal bricks, which facilitates demolding during the manufacturing process, prevents corner chipping, and simplifies the masonry construction.

[0029] 3. Beneficial effects

[0030] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0031] 1. The heat is absorbed by the heat-conducting cylinder, causing the heat-conducting liquid inside to absorb the heat and flow from the high-temperature zone to the low-temperature zone, converting the thermal energy into the kinetic energy of the liquid flow. The heat-conducting liquid in the low-temperature zone is then replenished into the heat-conducting cylinder, moving from the heat-conducting cylinder to the heat-conducting plate to heat the ash pit. This preheats the air entering the device, enhancing combustion efficiency and reducing fuel consumption when it is sent into the combustion chamber. The high-temperature air combustion also reduces pollutants such as CO and hydrocarbons produced by incomplete combustion, and the heat in the exhaust gas is recovered and utilized.

[0032] 2. By setting a flow restrictor in the exhaust channel, the exhaust gas can only be discharged through the space between the guide vane and the central rod. This restricts the flow of the exhaust gas and reduces the exhaust gas velocity on the side where the two flow restrictors are close to each other. This increases the residence time of the exhaust gas on the side where the heat-conducting cylinders are close to each other. The heat-conducting liquid in the heat-conducting cylinder can absorb the heat in the exhaust gas through the heat-conducting cylinder. Therefore, the flow velocity can be reduced, which can indirectly improve the energy recovery efficiency of the device.

[0033] 3. Simultaneously, when the exhaust gas is discharged through the space between the guide vane and the central rod, the spiral groove inside the guide vane increases the contact time and surface area between the exhaust gas and the guide vane as the exhaust gas passes through the space between the guide vane and the central rod. This allows the guide vane to further absorb the heat in the exhaust gas that was not directly absorbed by the heat-conducting cylinder, and then conduct it to the heat-conducting liquid in the second heat-conducting tank through the rotating cylinder that is fixedly connected to it, thereby further improving the energy absorption effect of the device.

[0034] 4. During the liquid flow heat exchange process described above, the paddles will rotate synchronously, and the sliding cylinder will slide inside the heat-conducting cylinder through transmission, causing the guide vanes to rotate and expand, extending the spiral channel, further increasing the time that the exhaust gas flows in the channel, so that the spiral channel can absorb more heat and conduct it, increasing the amount of exhaust gas heat that the device can absorb within a certain time, and further improving the energy recovery efficiency.

[0035] 5. When the guide vane unfolds, the elastic element applies a reaction force to the movement of the rack through its elasticity, reducing its moving speed and ensuring smooth adjustment of the exhaust channel. This prevents the airflow from becoming turbulent in the exhaust channel or even the kiln body due to excessively fast movement. When the guide vane resets, the elastic element applies a thrust to the rack to assist in its reset, reducing the impact of changes in liquid flow rate on its reset.

[0036] 6. During the reciprocating unfolding of the aforementioned guide vanes, the scraper simultaneously cleans the inner wall of the guide vanes rotating in the spiral direction. This prevents dust from adhering and causing poor contact between the guide vanes and guide channels and the exhaust gas, thus reducing the heat conduction effect. At the same time, as the sliding cylinder moves, the protruding part on the cam strikes the scraper through the transmission, causing the scraper to vibrate. The vibration causes a high-frequency micro-displacement at the contact surface between the scraper and the guide vanes, creating dynamic friction between the scraper and the contact surface, improving the cleaning effect and indirectly improving the energy recovery effect of the device. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of a kiln with energy recovery and its supporting device disclosed in a preferred embodiment of this application.

[0038] Figure 2 This is a cross-sectional structural diagram of the kiln body in a preferred embodiment of the energy recovery kiln and its support device disclosed in this application.

[0039] Figure 3 This is a three-dimensional structural diagram of the corbel support column in the energy recovery kiln and its support device disclosed in a preferred embodiment of this application.

[0040] Figure 4 This is a schematic diagram showing the structural relationship between the exhaust channel and the heat-conducting cylinder in a kiln with energy recovery and its supporting device disclosed in a preferred embodiment of this application.

[0041] Figure 5 A preferred embodiment of this application discloses a kiln with energy recovery and its supporting device. Figure 4 Enlarged structural diagram at point A in the middle.

[0042] Figure 6 This is a cross-sectional schematic diagram of the heat-conducting ring in a kiln with energy recovery and its support device disclosed in a preferred embodiment of this application.

[0043] Figure 7 This is a three-dimensional structural diagram of the heat-conducting cylinder in a kiln with energy recovery and its supporting device disclosed in a preferred embodiment of this application.

[0044] Figure 8 This is a cross-sectional structural diagram of the second heat-conducting component in a kiln with energy recovery and its supporting device disclosed in a preferred embodiment of this application.

[0045] Figure 9 This is a schematic diagram of the internal structure of the second heat-conducting component in a kiln with energy recovery and its supporting device, as disclosed in a preferred embodiment of this application.

[0046] Figure 10 This is a three-dimensional structural diagram of the flow-limiting cylinder in the energy recovery kiln and its support device disclosed in a preferred embodiment of this application.

[0047] Figure 11 This is a schematic diagram of the internal structure of the first heat-conducting component in a kiln with energy recovery and its supporting device disclosed in a preferred embodiment of this application.

[0048] Explanation of the numbers in the diagram: 10. Kiln body; 101. Air inlet; 102. Grate; 103. Ash pit; 104. Combustion chamber; 105. Kiln roof; 106. Base; 11. Exhaust channel; 12. Heat-conducting cylinder; 13. Heat-conducting ring; 14. Heat-conducting plate; 15. Flow-limiting cylinder; 16. First heat-conducting component; 161. Support plate; 162. Flow guide groove; 163. Liquid inlet; 164. First heat-conducting groove; 165. Liquid outlet; 17. Transmission component; 171. Blade; 172. Bevel gear; 173. Drive gear; 174. First driven gear; 175. First missing tooth 176. Wheel; 177. First transmission gear; 178. Second driven gear; 179. Second incomplete gear; 180. Second heat-conducting component; 181. Sliding cylinder; 182. Second heat-conducting groove; 183. Telescopic connecting pipe; 184. Rotating cylinder; 185. Guide vane; 186. Rack; 187. Elastic element; 188. Heat insulation film; 19. First slide groove; 20. Center rod; 21. Scraper; 22. Second slide groove; 23. Vibration component; 231. Slider; 232. Tooth groove; 233. Second transmission gear; 234. Cam; 30. Bracket support column; 31. Right-angled trapezoidal brick. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Example 1: Refer to Figures 1 to 11 This application provides a kiln with energy recovery, including a heat-conducting component. The kiln body 10 has an exhaust channel 11, and a heat-conducting cylinder 12 for absorbing heat from the exhaust gas is provided inside the exhaust channel 11. A heat-conducting ring 13 is provided on the side of the heat-conducting cylinder 12. Two heat-conducting plates 14 for heating the inside of the ash pit 103 are provided on the heat-conducting ring 13. A flow-limiting cylinder 15 for limiting the flow of exhaust gas is provided inside the heat-conducting plate 14. A first heat-conducting component 16 for heat conduction is provided inside the flow-limiting cylinder 15. A second heat-conducting component 18 is provided inside the heat-conducting cylinder 12. A transmission component 17 for driving the second heat-conducting component 18 to move inside the heat-conducting cylinder 12 is provided on the heat-conducting ring 13. A first sliding groove 19 is provided on the inner wall of the exhaust channel 11.

[0053] The cleaning assembly includes a central rod 20 disposed within the flow-limiting cylinder 15, a scraper 21 disposed on the side of the central rod 20 for cleaning dust adhering to the inner wall of the second heat-conducting assembly 18, a second sliding groove 22 disposed inside the central rod 20, and a vibration assembly 23 disposed inside the central rod 20 for driving the scraper 21 to vibrate.

[0054] The kiln body 10 includes a base 106, an air inlet 101 on the top of the base 106, an ash pit 103 below the air inlet 101, a grate 102 between the air inlet 101 and the ash pit 103, a combustion chamber 104 on the side of the air inlet 101, a kiln roof 105 on the top of the base 106, a heat-conducting ring 13 and a heat-conducting plate 14 both located inside the base 106, the heat-conducting plate 14 extending through the inner wall of the base 106 into the ash pit 103, the combustion chamber 104 located inside the kiln roof 105, and an exhaust channel 11 located inside the base 106.

[0055] Reference Figure 8 , Figure 10 and Figure 11 This application provides a kiln with energy recovery. The first heat-conducting component 16 includes a support plate 161 fixedly connected to the side of the heat-conducting cylinder 12. The inner wall of the flow-limiting cylinder 15 is provided with a flow guide groove 162. The bottom of the flow-limiting cylinder 15 is provided with a liquid inlet 163. The inside of the flow-limiting cylinder 15 is provided with a first heat-conducting groove 164. Both sides of the flow-limiting cylinder 15 are provided with liquid outlets 165. The flow guide groove 162 is spiral in shape. The liquid inlet 163 communicates with the liquid outlet 165 through the first heat-conducting groove 164. Both the liquid inlet 163 and the liquid outlet 165 communicate with the inside of the heat-conducting cylinder 12. The flow-limiting cylinder 15 is fixedly connected to the support plate 161. The heat-conducting cylinder 12, the heat-conducting plate 14 and the flow-limiting cylinder 15 are all made of heat-conducting materials.

[0056] Reference Figure 6 , Figure 8 and Figure 9 This application provides a kiln with energy recovery. The transmission assembly 17 includes a blade 171 rotatably connected inside a heat-conducting ring 13 and a drive gear 173 disposed above the heat-conducting ring 13. A bevel gear 172 is fixedly connected to the side of the blade 171. A first driven gear 174 meshes with the side of the drive gear 173. A first broken gear 175 is fixedly connected to the bottom of the first driven gear 174. A first transmission gear 176 meshes with the side of the first driven gear 174 away from the drive gear 173. A second driven gear 177 is meshed on the side away from the first driven gear 174. A second defective gear 178 is fixedly connected to the bottom of the second driven gear 177. The bottom of the driving gear 173 extends through the top of the heat-conducting ring 13 and into the interior of the heat-conducting ring 13. A bevel gear 172 is fixedly connected to the bottom of the driving gear 173. The two bevel gears 172 mesh with each other. The size of the first driven gear 174 is the same as the size of the second driven gear 177. The size of the driving gear 173 is larger than the size of the first driven gear 174.

[0057] Reference Figures 4 to 9 This application provides a kiln with energy recovery. The second heat-conducting component 18 includes a sliding cylinder 181 slidably connected inside the heat-conducting cylinder 12. The sliding cylinder 181 is provided with a second heat-conducting groove 182. Three telescopic connecting pipes 183 are fixedly connected to the side of the sliding cylinder 181. A rotating cylinder 184 is rotatably connected inside the sliding cylinder 181. A guide plate 185 is fixedly connected inside the rotating cylinder 184. A rack 186 is fixedly connected to the top of the sliding cylinder 181. An elastic element 187 is provided on the side of the rack 186. A heat-insulating film 188 for heat insulation is provided between the elastic element 187 and the sliding cylinder 181.

[0058] The rack 186 is slidably connected to the inner wall of the first groove 19. The rack 186 is elastically connected to the inner wall of the first groove 19 through an elastic element 187. The two ends of the heat insulation film 188 are fixedly connected to the rack 186 and the inner wall of the first groove 19, respectively. The second heat conduction groove 182 is connected to the interior of the heat conduction cylinder 12 through three telescopic connecting pipes 183. The sliding cylinder 181 and the rotating cylinder 184 are both located between the flow-limiting cylinder 15 and the heat conduction cylinder 12. The guide vane 185 is located inside the flow-limiting cylinder 15. The rotating cylinder 184 and the guide vane 185 are rotatably connected to the flow-limiting cylinder 15. The outer wall of the guide vane 185 is the same size as the inner wall of the guide groove 162. The dimensions are matched, the outer side of the guide vane 185 is in contact with the inner wall of the guide groove 162, the side of the first defective gear 175 meshes with the rack 186, the sliding cylinder 181, the rotating cylinder 184 and the guide vane 185 are all made of heat-conducting material, the telescopic connecting pipe 183 is made of high-temperature resistant metal material, the dimensions of the inner wall of the heat-conducting cylinder 12 are matched with the dimensions of the exhaust channel 11, the dimensions of the guide vane 185 and the guide groove 162 are both smaller than the dimensions of the exhaust channel 11, the second defective gear 178 is located on the side of the rack 186 away from the first defective gear 175, and the end of the scraper 21 away from the center rod 20 is in contact with the inner wall of the guide vane 185.

[0059] Reference Figures 9 to 11 This application provides a kiln with energy recovery. The vibration component 23 includes a slider 231 fixedly connected inside the sliding cylinder 181. The top of the slider 231 is evenly provided with a plurality of toothed grooves 232. A second transmission gear 233 is provided above the slider 231. A cam 234 is fixedly connected to the side of the second transmission gear 233. The size of the slider 231 is adapted to the size of the second slide groove 22. The size of both the slider 231 and the second slide groove 22 are "T" shaped. The slider 231 and the second slide groove 22 are slidably connected. The second transmission gear 233 is rotatably connected to the inner wall of the central rod 20. The bottom of the second transmission gear 233 extends through the inner wall of the central rod 20 into the interior of the second slide groove 22. The second transmission gear 233 meshes with the toothed grooves 232. The cam 234 is located above the scraper 21. The scraper 21 is made of a high-toughness and high-elasticity material. The central rod 20 and the slider 231 are both made of high-temperature resistant materials.

[0060] Example 2: Refer to Figures 2 to 4This application provides a support device installed inside the kiln of Embodiment 1, including a corbel support column 30 set on the top of the base 106. The corbel support column 30 is located inside the kiln top 105. On the side of the corbel support column 30 away from the kiln top 105, a plurality of right-angled trapezoidal bricks 31 are provided. The corbel support column 30 is used to support the kiln top 105. The bricks on the corbel support column 30 are made of right-angled trapezoidal bricks 31, which facilitates demolding during the manufacturing process and prevents corner breakage. At the same time, it makes the masonry construction simpler.

[0061] This application provides a kiln with energy recovery and its supporting device, the working principle and usage process of which are as follows:

[0062] First, when the kiln body 10 is working, the external air will first pass through the grate 102 from the air inlet 101 into the ash pit 103, and then pass through the grate 102 and the combustion chamber 104 into the kiln top 105. The exhaust gas in the device will be discharged through the exhaust channel 11. The bracket support column 30 is set to support the kiln top 105. By setting the flow restrictor 15 in the exhaust channel 11, the exhaust gas can only be discharged through the space between the guide plate 185 and the central rod 20. The exhaust gas is restricted, and the exhaust gas flow velocity on the side of the two flow restrictors 15 that are close to each other is reduced. This increases the residence time of the exhaust gas on the side of the heat conduction cylinder 12 that is close to each other. The heat conduction liquid in the heat conduction cylinder 12 can absorb the heat in the exhaust gas through the heat conduction cylinder 12. Therefore, the flow velocity can be reduced, which can indirectly improve the energy recovery efficiency of the device.

[0063] When the exhaust gas is discharged through the space between the guide vane 185 and the central rod 20, the spiral groove inside the guide vane 185 increases the contact time and surface area with the guide vane as the exhaust gas passes through the space between the guide vane and the central rod. This allows the guide vane 185 to further absorb the heat in the exhaust gas that was not directly absorbed by the heat-conducting cylinder 12, and then conduct it to the heat-conducting liquid in the second heat-conducting tank 182 through the rotating cylinder 184 that is fixedly connected to it, thereby further improving the energy absorption effect of the device.

[0064] After absorbing heat, the heat-conducting liquid in the heat-conducting cylinder 12 flows from the high-temperature zone to the low-temperature zone, converting thermal energy into the kinetic energy of the liquid flow. The heat-conducting liquid in the low-temperature zone is then replenished back into the heat-conducting cylinder 12, moving from inside the cylinder to the heat-conducting plate 14 to heat the ash pit 103. This preheats the air entering the device within the ash pit 103, enhancing combustion efficiency and reducing fuel consumption when it enters the combustion chamber. The high-temperature air combustion-supporting effect also reduces pollutants such as CO and hydrocarbons produced by incomplete combustion. The heat in the exhaust gas is recovered and utilized. After the high-temperature heat-conducting liquid consumes heat at the heat-conducting plate 14, it will be squeezed away by the high-temperature heat-conducting liquid at the heat-conducting cylinder 12. In this way, heat exchange is achieved in the heat-conducting ring 13. The high-temperature heat-conducting liquid in the second heat-conducting groove 182 will also be discharged into the heat-conducting cylinder 12 through the telescopic connecting pipes 183 on both sides of the sliding cylinder 181 under the action of liquid flow, and enter the circulation. The low-temperature heat-conducting liquid in the heat-conducting cylinder 12 will also flow into the second heat-conducting groove 182 through the telescopic connecting pipe 183 at the bottom of the sliding cylinder 181.

[0065] During the heat exchange process, the liquid flow, as it passes through the impeller 171, causes the impeller 171 to rotate, converting the kinetic energy of the liquid flow into the mechanical energy of the impeller 171's rotation. This effectively utilizes the recovered energy. The rotation of the impeller 171 drives the drive gear 173 to rotate via the transmission of two bevel gears 172. The rotation of the drive gear 173 drives the first driven gear 174, which in turn drives the second driven gear 177 to rotate under the transmission of the first transmission gear 176. The rotation of the first driven gear 174 causes the first residual gear 175 to rotate, thereby causing the rack 186, which meshes with it, to slide within the first slide groove 19. This compresses the elastic element 187 and causes the sliding cylinder 181 to slide within the heat-conducting cylinder 12, applying a lateral stress to the rotating cylinder 184. Because the guide vane 185 is in contact with the inner wall of the guide groove 162, the guide vane 185 will exert a lateral stress. Under stress, the flow deflector rotates along the spiral direction of the guide channel 162, causing the guide vane 185 to separate from the guide channel 162, extending the spiral channel, further increasing the flow time of the exhaust gas in the channel, and allowing the guide channel 162 to contact the exhaust gas and absorb the heat in the exhaust gas, transferring the heat to the heat transfer liquid in the first heat transfer channel 164. The high-temperature heat transfer liquid in the first heat transfer channel 164 will also be discharged from the outlet 165 into the heat transfer cylinder 12 under the action of liquid flow, entering the circulation. The low-temperature coolant will enter the first heat transfer channel 164 through the inlet 163. At this time, the heat exchange contact area gradually increases, which will cause the liquid flow rate in the heat transfer cylinder 12 to increase, thus making it easier to increase the rotation speed of the blade 171. The gradually compressed elastic element 187 will reduce the moving speed of the sliding cylinder 181 through elasticity, avoiding the situation where the airflow in the exhaust channel 11 or even the kiln body 10 is turbulent due to its excessive moving speed.

[0066] When the first derelict gear 175 rotates to the position where it disengages from the rack 186, the second derelict gear 178 on the second driven gear 177 will rotate to the position where it meshes with the rack 186, causing the rack 186 to move towards the support plate 161, causing the guide vane 185 to gradually rotate and reset. This cycle repeats. As the guide vane 185 resets, the contact area of ​​the heat exchange gradually decreases, reducing the liquid flow rate in the heat conduction cylinder 12. This can easily lead to a decrease in the rotation speed of the blade 171, affecting the reset of the guide vane 185. At this time, the elastic force of the elastic element 187 will apply a thrust to the reset of the guide vane 185, reducing the impact of changes in liquid flow rate on its reset.

[0067] During the reciprocating unfolding of the aforementioned guide vane 185, the scraper 21, which is in contact with the inner wall of the guide vane 185, cleans the dust adhering to the inner wall of the guide vane 185. During the rotation and resetting process of the guide vane 185 against the guide groove 162, the end of the guide vane 185 near the support plate 161 scrapes off the dust adhering to the guide groove 162 and pushes the scraped dust towards the side of the support plate 161 away from the guide vane 185, preventing dust from adhering and causing the guide vane 185 and guide groove 162 to... Poor contact of exhaust gas reduces heat conduction. At the same time, when the sliding cylinder 181 moves, it will drive the slider 231 to move. The movement of the slider 231 will drive the second transmission gear 233 meshing with it to rotate through the tooth groove 232. The rotation of the second transmission gear 233 will drive the cam 234 to rotate and cause its protruding part to strike the scraper 21 below it, causing the scraper 21 to vibrate. The vibration causes the scraper 21 to produce high-frequency micro-displacement on the contact surface with the guide vane 185, so that the scraper 21 forms dynamic friction on the contact surface.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A kiln with energy recovery, characterized in that: include, The heat-conducting component includes a kiln body (10), an exhaust channel (11) is provided on the kiln body (10), a heat-conducting cylinder (12) for absorbing heat in the exhaust gas is provided in the exhaust channel (11), a heat-conducting ring (13) is provided on the side of the heat-conducting cylinder (12), two heat-conducting plates (14) for heating the inside of the ash pit (103) are provided on the heat-conducting ring (13), a flow-limiting cylinder (15) for limiting the flow of exhaust gas is provided in the heat-conducting plate (14), a first heat-conducting component (16) for heat conduction is provided in the flow-limiting cylinder (15), a second heat-conducting component (18) is provided inside the heat-conducting cylinder (12), a transmission component (17) for driving the second heat-conducting component (18) to move inside the heat-conducting cylinder (12) is provided on the heat-conducting ring (13), and a first sliding groove (19) is provided on the inner wall of the exhaust channel (11). The cleaning assembly includes a central rod (20) disposed in a flow-limiting cylinder (15), a scraper (21) for cleaning dust adhering to the inner wall of the second heat-conducting assembly (18) is provided on the side of the central rod (20), a second sliding groove (22) is provided inside the central rod (20), and a vibration assembly (23) for driving the scraper (21) to vibrate is provided inside the central rod (20). The first heat-conducting component (16) includes a support plate (161) fixedly connected to the side of the heat-conducting cylinder (12), the inner wall of the flow-limiting cylinder (15) is provided with a flow-guiding groove (162), the bottom of the flow-limiting cylinder (15) is provided with a liquid inlet (163), the inside of the flow-limiting cylinder (15) is provided with a first heat-conducting groove (164), and both sides of the flow-limiting cylinder (15) are provided with liquid outlets (165).

2. The kiln with energy recovery according to claim 1, characterized in that: The kiln body (10) includes a base (106), an air inlet (101) is provided on the top of the base (106), an ash pit (103) is provided below the air inlet (101), a grate (102) is provided between the air inlet (101) and the ash pit (103), a combustion chamber (104) is provided on the side of the air inlet (101), a kiln roof (105) is provided on the top of the base (106), a heat-conducting ring (13) and a heat-conducting plate (14) are both provided inside the base (106), the heat-conducting plate (14) extends through the inner wall of the base (106) to the inside of the ash pit (103), the combustion chamber (104) is located inside the kiln roof (105), and the exhaust channel (11) is provided inside the base (106).

3. The kiln with energy recovery according to claim 1, characterized in that: The guide channel (162) has a spiral shape. The liquid inlet (163) is connected to the liquid outlet (165) through the first heat conduction channel (164). Both the liquid inlet (163) and the liquid outlet (165) are connected to the interior of the heat conduction cylinder (12). The flow limiting cylinder (15) is fixedly connected to the support plate (161). The heat conduction cylinder (12), the heat conduction plate (14) and the flow limiting cylinder (15) are all made of heat-conducting materials.

4. The kiln with energy recovery according to claim 1, characterized in that: The transmission assembly (17) includes a blade (171) rotatably connected inside the heat-conducting ring (13) and a drive gear (173) disposed above the heat-conducting ring (13). A bevel gear (172) is fixedly connected to the side of the blade (171). A first driven gear (174) meshes with the side of the drive gear (173). A first defective gear (175) is fixedly connected to the bottom of the first driven gear (174). A first transmission gear (176) meshes with the side of the first driven gear (174) away from the drive gear (173). A second driven gear (177) meshes with the side of the first transmission gear (176) away from the first driven gear (174). A second defective gear (178) is fixedly connected to the bottom of the second driven gear (177).

5. The kiln with energy recovery according to claim 4, characterized in that: The second heat-conducting component (18) includes a sliding cylinder (181) slidably connected inside the heat-conducting cylinder (12). The sliding cylinder (181) has a second heat-conducting groove (182) inside. Three telescopic connecting pipes (183) are fixedly connected to the side of the sliding cylinder (181). A rotating cylinder (184) is rotatably connected inside the sliding cylinder (181). A guide plate (185) is fixedly connected inside the rotating cylinder (184). A rack (186) is fixedly connected to the top of the sliding cylinder (181). An elastic element (187) is provided on the side of the rack (186). A heat-insulating film (188) for heat insulation is provided between the elastic element (187) and the sliding cylinder (181).

6. The kiln with energy recovery according to claim 5, characterized in that: The rack (186) is slidably connected to the inner wall of the first groove (19). The rack (186) is elastically connected to the inner wall of the first groove (19) through an elastic element (187). The two ends of the heat insulation film (188) are fixedly connected to the rack (186) and the inner wall of the first groove (19), respectively. The second heat conduction groove (182) is connected to the interior of the heat conduction cylinder (12) through three telescopic connecting pipes (183). The sliding cylinder (181) and the rotating cylinder (184) are both located between the flow-limiting cylinder (15) and the heat conduction cylinder (12). The guide plate (185) is located inside the flow-limiting cylinder (15). The rotating cylinder (184) and the guide plate (185) are rotatably connected to the flow-limiting cylinder (15). The outer wall size of the guide plate (185) is the same as that of the guide groove (162). The dimensions of the inner wall of the heat-conducting cylinder (12) are adapted to each other. The outer side of the guide plate (185) is in contact with the inner wall of the guide groove (162). The side of the first defective gear (175) meshes with the rack (186). The materials of the sliding cylinder (181), rotating cylinder (184) and guide plate (185) are all heat-conducting materials. The material of the telescopic connecting pipe (183) is high-temperature resistant metal material. The dimensions of the inner wall of the heat-conducting cylinder (12) are adapted to the dimensions of the exhaust channel (11). The dimensions of the guide plate (185) and guide groove (162) are both smaller than the dimensions of the exhaust channel (11). The second defective gear (178) is located on the side of the rack (186) away from the first defective gear (175). The end of the scraper (21) away from the center rod (20) is in contact with the inner wall of the guide plate (185).

7. The kiln with energy recovery according to claim 5, characterized in that: The vibration assembly (23) includes a slider (231) fixedly connected inside the sliding cylinder (181). The top of the slider (231) is evenly provided with a number of toothed grooves (232). A second transmission gear (233) is provided above the slider (231). A cam (234) is fixedly connected to the side of the second transmission gear (233).

8. The kiln with energy recovery according to claim 7, characterized in that: The size of the slider (231) is adapted to the size of the second slide groove (22). The slider (231) and the second slide groove (22) are both T-shaped. The slider (231) and the second slide groove (22) are slidably connected. The second transmission gear (233) is rotatably connected to the inner wall of the center rod (20). The bottom of the second transmission gear (233) extends through the inner wall of the center rod (20) to the interior of the second slide groove (22). The second transmission gear (233) meshes with the tooth groove (232). The cam (234) is located above the scraper (21). The scraper (21) is made of a high-toughness and high-elasticity material. The center rod (20) and the slider (231) are both made of high-temperature resistant materials.

9. The kiln with energy recovery according to any one of claims 1-8, characterized in that: The supporting device inside the kiln includes a corbel support column (30) set on the top of the base (106). The corbel support column (30) is located inside the kiln top (105). Several right-angled trapezoidal bricks (31) are set on the side of the corbel support column (30) away from the kiln top (105).

Images