A waste heat utilization device based on kiln gas of a kiln

Abstract

This invention relates to the field of kiln gas waste heat utilization technology, and more particularly to a waste heat utilization device based on kiln gas. The device includes a housing, heat-conducting pipes, a heat-conducting plate, and first valves. The heat-conducting pipes are connected to the housing and are sealed through the right side of the housing. A heat-conducting plate is also connected to the housing. Circular holes are opened on both the left and right sides of the top of the housing. First valves are installed on the left and right sides of the heat-conducting pipes, and the valve stems of the first valves are rotatably connected to the heat-conducting plate. This invention allows kiln gas to be introduced into the heat-conducting pipes through the air inlet pipes. The waste heat in the kiln gas is conducted to the interior of the housing through the heat-conducting pipes. The heat inside the housing is conducted upwards through the heat-conducting plate. Cooking utensils can be placed inside the circular holes to utilize the waste heat in the kiln gas. A filter element filters out dust and fumes from the kiln gas, preventing dust and fumes from entering the heat-conducting pipes.

Description

Technical Field

[0001] This invention relates to the field of waste heat utilization technology of kiln gas, and in particular to a waste heat utilization device based on kiln gas. Background Technology

[0002] Kiln gas contains a large amount of unused heat energy. Direct emission of this energy would result in a huge waste of energy. Utilizing the waste heat in the kiln gas and converting it into energy that can be used in other production processes can improve energy efficiency and reduce energy consumption and environmental pollution.

[0003] The residual heat from the kiln gas can be used for boiling water, cooking rice, stir-frying, and other production processes. The kiln gas is introduced into the heat conduction pipe, and the heat is transferred out through the heat conduction pipe to provide heat for boiling water, cooking rice, stir-frying, and other production processes. During the operation of the kiln, smoke and dust will be generated. The smoke and dust will enter the heat conduction pipe along with the kiln gas. Some of the smoke and dust will adhere to the inner wall of the heat conduction pipe. Over time, a large amount of smoke and dust will accumulate on the inner wall of the heat conduction pipe. A thick layer of smoke and dust on the inner wall of the heat conduction pipe will hinder the dissipation of heat and affect the heat conduction efficiency. Summary of the Invention

[0004] To overcome the drawback that a thick layer of soot on the inner wall of the heat pipe hinders heat dissipation and affects heat conduction efficiency, this invention provides a waste heat utilization device based on kiln gas.

[0005] Technical Solution: A waste heat utilization device based on kiln gas includes a housing, heat-conducting pipes, a heat-conducting plate, a first valve, a rotating rod, a discharge pipe, a one-way valve, an exhaust pipe, a second valve, a connecting frame, an inlet pipe, a rotating shaft, a turntable, and a filter element. The heat-conducting pipes are connected inside the housing and are sealed through the right side of the housing. A heat-conducting plate is connected inside the housing. Circular holes are opened on both the left and right sides of the top of the housing. First valves are installed on the left and right sides of the heat-conducting pipes. The valve stems of the first valves are rotatably connected to the heat-conducting plate. Two rotating rods are rotatably connected to the housing. The rotating rods and the valve stems of the first valves are driven by bevel gears. The bottom of the heat-conducting pipes is connected to an exhaust pipe. The heat pipe and the discharge pipe are sealed and pass through the bottom of the box. One-way valves are installed on the left and right sides of the discharge pipe. The bottom left and right sides of the heat pipe are connected to the air outlet pipe. The air outlet pipe and the discharge pipe are connected and connected. A second valve is installed on each air outlet pipe. The valve stem of the second valve is rotatably connected to the box. The rotating rod and the valve stem of the second valve are driven by a pulley group. A connecting frame is connected to the box. An air inlet pipe is connected to the bottom of the connecting frame. A rotating shaft is rotatably connected to the box. A turntable is connected to the middle of the rotating shaft. Four filter elements for filtering dust in the kiln gas are evenly spaced around the turntable. The heat pipe and the air inlet pipe are in contact with the filter elements.

[0006] Furthermore, it also includes a water heating mechanism, which includes a tank, an inlet pipe, a drain pipe, an air pump, an air intake pipe, an exhaust pipe, a water tank, an outlet pipe, and a discharge pipe. The top of the tank is connected to the inlet pipe, and the bottom of the tank is connected to the drain pipe. The air pump is connected to the tank, and the air intake end of the air pump is connected to the air intake pipe, which is connected to the discharge pipe. The air outlet end of the air pump is connected to the exhaust pipe, which passes through the upper part of the tank. The lower end of the exhaust pipe is connected to the water tank, which is located inside the tank. The bottom of the water tank is connected to the outlet pipe, which is sealed and passes through the bottom of the tank. The water tank is connected to the discharge pipe, which passes through the top of the tank.

[0007] Furthermore, it also includes a scraping mechanism, which comprises a sliding plate, guide rods, sealing plates, a screw motor, scrapers, and push plates. Guide openings are provided on both the left and right sides of the box, and sliding plates are slidably connected to each of the guide openings. Two guide rods are connected to the top of the heat-conducting plate, and the two guide rods are slidably connected to the two sliding plates respectively. Sealing plates are connected to the top of each sliding plate. A screw motor is installed on the top of the box, and a scraper for scraping off oil stains and kitchen waste from the top of the box is connected to the screw of the screw motor via threads. The bottom of the scraper contacts the top of the box, and two push plates are connected to the scraper. The push plates are used to push the sliding plates upward, and the sliding plates drive the sealing plates upward, sealing the round holes.

[0008] Furthermore, it also includes a sealing mechanism, which includes a sealing ring, a rack, a spur gear, and a moving component. The sealing ring is slidably connected to both the heat pipe and the air inlet pipe. The sealing ring slides through the connecting frame. The sealing ring is connected to a rack. The top of the connecting frame is rotatably connected to a spur gear. The spur gear and the rack mesh. The moving component is used to control the movement of the sealing ring so that the sealing ring is fitted onto the filter element.

[0009] Furthermore, the movable component includes a sealing ring, a sealing block, a spring, a sliding rod, and a connecting plate. The sealing ring is connected inside the exhaust pipe, and the sealing block is slidably connected to the sealing ring. A spring connects the sealing block and the sealing ring. The sliding rod is connected to the sealing block and slides through the exhaust pipe. The connecting plate is connected to the sliding rod and is connected to the sealing ring on the left side.

[0010] Furthermore, it also includes a heat insulation plate, with the heat insulation plate connected to the top center of the heat-conducting plate.

[0011] Furthermore, it also includes sealing blocks, with sealing blocks connected to the slide plates to seal the guide openings.

[0012] Furthermore, it also includes a protective cover and an arc-shaped scraper. The top of the box is connected to a protective cover to block oil stains and kitchen waste. The lead screw of the lead screw motor is located directly below the protective cover. The top of the scraper is connected to an arc-shaped scraper, which contacts the top of the protective cover.

[0013] The beneficial effects are: 1. The present invention can introduce kiln gas into the heat conduction pipe through the air inlet pipe. The residual heat in the kiln gas is conducted to the inside of the box through the heat conduction pipe. The heat inside the box is conducted upward through the heat conduction plate. Cookware can be placed in the round hole to utilize the residual heat in the kiln gas. The filter element can filter the smoke and dust in the kiln gas to prevent smoke and dust from entering the heat conduction pipe.

[0014] 2. The air pump can draw kiln gas into the exhaust pipe, where it enters the water tank and is finally discharged through the exhaust pipe. The residual heat in the kiln gas can be used to heat the water in the tank, thus improving the utilization rate of residual heat.

[0015] 3. The screw motor can drive the scraper to move backward. The scraper can remove oil stains and kitchen waste from the top of the box to prevent oil stains from affecting the next use. The sealing plate can seal the round hole to prevent oil stains from falling onto the heat conduction plate from the round hole, and also to prevent dust from falling onto the heat conduction plate from the round hole.

[0016] 4. By fitting the sealing ring onto the filter element, the sealing performance between the heat pipe and the filter element can be improved, as can the sealing performance between the air intake pipe and the filter element. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0018] Figure 2 A cross-sectional view of the housing of the present invention is shown.

[0019] Figure 3 A three-dimensional structural schematic diagram of the heat-conducting pipe, the first valve, the discharge pipe, and the one-way valve of the present invention is shown.

[0020] Figure 4 A three-dimensional structural schematic diagram of the connecting frame, air inlet pipe, rotating shaft, turntable and filter element of the present invention is shown.

[0021] Figure 5 A three-dimensional structural schematic diagram of the water heating mechanism of the present invention is shown.

[0022] Figure 6 A three-dimensional structural schematic diagram of the drainage pipe of the present invention is shown.

[0023] Figure 7 A cross-sectional view of the tank body of the present invention is shown.

[0024] Figure 8 A three-dimensional structural schematic diagram of the first type of scraping mechanism of the present invention is shown.

[0025] Figure 9 A schematic diagram of a second three-dimensional structure of the scraping mechanism of the present invention is shown.

[0026] Figure 10A three-dimensional structural schematic diagram of the sealing mechanism of the present invention is shown.

[0027] Figure 11 A cross-sectional view of the exhaust pipe of the present invention is shown.

[0028] Figure 12 A cross-sectional view of the sealing ring of the present invention is shown.

[0029] Wherein: 1: Box body, 2: Heat-conducting pipe, 3: Heat-conducting plate, 4: Round hole, 5: First valve, 6: Rotating rod, 7: Discharge pipe, 8: One-way valve, 9: Air outlet pipe, 10: Second valve, 11: Connecting frame, 12: Air inlet pipe, 13: Rotating shaft, 14: Turntable, 15: Filter element, 16: Tank body, 17: Water inlet pipe, 18: Drain pipe, 19: Air pump, 20: Suction pipe, 21: Exhaust pipe, 22: Water tank, 23: Water outlet pipe, 24: Drain pipe, 26: Slide plate, 261: Guide rod, 27: Sealing plate, 28: Screw motor, 29: Scraper, 30: Push plate, 31: Sealing ring, 32: Spur rack, 33: Spur gear, 34: Sealing ring, 35: Sealing block, 36: Spring, 37: Slide rod, 38: Connecting plate, 39: Heat insulation plate, 40: Sealing block, 41: Protective cover, 42: Arc-shaped scraper. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" 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 an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0031] Example 1: As Figures 1-4As shown, a waste heat utilization device based on kiln gas includes a housing 1, a heat-conducting pipe 2, a heat-conducting plate 3, a first valve 5, a rotating rod 6, a discharge pipe 7, a one-way valve 8, an exhaust pipe 9, a second valve 10, a connecting frame 11, an intake pipe 12, a rotating shaft 13, a turntable 14, and a filter element 15. The heat-conducting pipe 2 is connected to the bottom of the housing 1 and is sealed through the right side of the housing 1. The heat-conducting plate 3 is connected to the middle of the housing 1. Circular holes 4 are opened on both the left and right sides of the top of the housing 1. The first valve 5 is installed on the left and right sides of the heat-conducting pipe 2, and the valve stem of the first valve 5 is rotatably connected to the heat-conducting plate 3. Rotating rods 6 are rotatably connected to the left and right sides of the front of the housing 1. The rotating rods 6 and the valve stems of the first valves 5 are driven by bevel gears. The discharge pipe 7 is connected to the bottom left side of the heat-conducting pipe 2 and is sealed through the bottom of the housing 1. One-way valves 8 are installed on the left and right sides of the discharge pipe 7. The bottom left and right sides of the heat conduction pipe 2 are connected to the air outlet pipes 9. The lower end of the air outlet pipe 9 is connected to the top of the discharge pipe 7, and the air outlet pipe 9 and the discharge pipe 7 are connected. Both the discharge pipe 7 and the air outlet pipe 9 are made of heat-insulating material to prevent excessive heat loss. A second valve 10 is installed on the air outlet pipe 9. The valve stem of the second valve 10 is rotatably connected to the front side of the box body 1. The rotating rod 6 and the valve stem of the second valve 10 are driven by a pulley group. A connecting frame 11 is connected to the right side of the box body 1. An air inlet pipe 12 is connected to the bottom of the connecting frame 11. A rotating shaft 13 is rotatably connected to the right side of the box body 1. A turntable 14 is connected to the middle of the rotating shaft 13. Four filter elements 15 are evenly spaced around the turntable 14. The left end of the filter element 15 contacts the right end of the heat conduction pipe 2, and the right end of the filter element 15 contacts the left end of the air inlet pipe 12.

[0032] like Figure 2 and Figure 9 As shown, it also includes a heat insulation plate 39, and the heat conduction plate 3 is connected to the top middle of the heat insulation plate 3.

[0033] The staff introduces the kiln gas into the inlet pipe 12. The kiln gas passes through the filter element 15 and enters the heat conduction pipe 2. The filter element 15 filters out the smoke and dust in the kiln gas, preventing smoke and dust from entering the heat conduction pipe 2. The residual heat in the kiln gas is conducted to the inside of the box 1 through the heat conduction pipe 2. The heat inside the box 1 is conducted upward through the heat conduction plate 3. Cookware can be placed in the round hole 4 to utilize the residual heat in the kiln gas. The kiln gas in the heat conduction pipe 2 is discharged through the exhaust pipe 7. If only one round hole 4 needs to be used, the rotating rod 6 on the left can be rotated. The rotating rod 6 drives the first valve 5 on the left to rotate via a bevel gear, closing the first valve 5. Simultaneously, the rotating rod 6 drives the second valve 10 on the left to rotate via a pulley assembly, opening the second valve 10. At this time, kiln gas will not enter the left side of the heat pipe 2; instead, it will enter the discharge pipe 7 through the left outlet pipe 9. Under the action of the one-way valve 8, the kiln gas in the discharge pipe 7 will not flow back into the heat pipe 2. Therefore, the residual heat in the kiln gas will not be conducted to the left side of the chamber 1, and there will be no heat at the left-side circular hole 4, thus saving heat. The heat insulation plate 39 can block the heat at the right-side circular hole 4, preventing heat from drifting to the left-side circular hole 4. If it is necessary to disable both circular holes 4, the rotating rod 6 on the right can be rotated. The rotating rod 6 on the right drives the first valve 5 on the right to rotate via a bevel gear, closing the first valve 5. Simultaneously, the rotating rod 6 on the right drives the second valve 10 on the right to rotate via a pulley assembly, opening the second valve 10. The kiln gas then enters the discharge pipe 7 through the right outlet pipe 9, and the one-way valve... Under the action of 8, the kiln gas in the discharge pipe 7 will not flow back into the heat conduction pipe 2, so the residual heat in the kiln gas will not be conducted into the box 1, and there is no heat at the two round holes 4, thus saving heat. When it is necessary to replace the filter element 15, the rotating shaft 13 can be rotated 90 degrees, the rotating shaft 13 drives the turntable 14 to rotate 90 degrees, the turntable 14 drives the filter element 15 to rotate 90 degrees, the old filter element 15 rotates out from between the heat conduction pipe 2 and the air inlet pipe 12, and the new filter element 15 rotates to between the heat conduction pipe 2 and the air inlet pipe 12, making it convenient to replace the filter element 15.

[0034] Example 2: Based on Example 1, such as Figures 5-7As shown, it also includes a water heating mechanism, which includes a tank 16, a water inlet pipe 17, a drain pipe 18, an air pump 19, an air intake pipe 20, an exhaust pipe 21, a water tank 22, a water outlet pipe 23, and a discharge pipe 24. The water inlet pipe 17 is connected to the front top of the tank 16, and the drain pipe 18 is connected to the lower rear side of the tank 16. The air pump 19 is connected to the upper left side of the tank 16, and the air intake end of the air pump 19 is connected to the air intake pipe 20. The lower end of the air intake pipe 20 is connected to the rear end of the discharge pipe 7. The air intake pipe 20 is for maintaining... The material is heat-conducting to prevent excessive heat loss. An exhaust pipe 21 is connected to the air outlet of the air pump 19. The exhaust pipe 21 passes through the upper left side of the tank 16. The lower end of the exhaust pipe 21 is connected to the water tank 22, which is located inside the tank 16. A water outlet pipe 23 is connected to the middle of the bottom of the water tank 22. The water outlet pipe 23 passes through the bottom of the tank 16 in a sealed manner. A drain pipe 24 is connected to the right side of the top of the water tank 22. The drain pipe 24 passes through the top of the tank 16. The exhaust pipe 21, the water tank 22, and the drain pipe 24 are all made of heat-conducting material.

[0035] Water is poured into tank 16 through inlet pipe 17. Air pump 19 draws kiln gas from outlet pipe 7 into exhaust pipe 21 through suction pipe 20. The kiln gas enters water tank 22 and is finally discharged through outlet pipe 24. Exhaust pipe 21, water tank 22, and outlet pipe 24 are all made of heat-conducting materials, so the residual heat in the kiln gas can fully heat the water in tank 16 to boil water, improving the utilization rate of residual heat. The residual heat in the kiln gas will increase the heat in exhaust pipe 21, water tank 22, and outlet pipe 24. When the hot gas cools, it will condense into water droplets, which will fall into water tank 22. Opening outlet pipe 23 will drain the water in water tank 22. After the water in tank 16 has been heated, drain pipe 18 can be opened to drain the heated water.

[0036] like Figure 8 and Figure 9 As shown, it also includes a scraping mechanism, which includes a slide plate 26, a guide rod 261, a sealing plate 27, a screw motor 28, a scraper 29, and a pusher 30. Guide openings are opened on both the left and right sides of the housing 1, and slide plates 26 are slidably connected in the guide openings. Two guide rods 261 are connected to the top of the heat-conducting plate 3, and the guide rods 261 and slide plates 26 are slidably connected. A sealing plate 27 is connected to the top of each slide plate 26. Both slide plates 26 and sealing plates 27 are made of heat-conducting materials to ensure heat conduction efficiency. A screw motor 28 is installed in the middle of the top of the housing 1. A scraper 29 is threadedly connected to the screw of the screw motor 28. The bottom of the scraper 29 contacts the top of the housing 1. Pushers 30 are connected to the left and right sides of the bottom of the scraper 29, and the rear side of the pusher 30 is inclined downward.

[0037] like Figure 9 As shown, it also includes a sealing block 40, and the top of the slide plate 26 is connected to the sealing block 40.

[0038] like Figure 1As shown, it also includes a protective cover 41 and an arc-shaped scraper 42. The protective cover 41 is connected to the middle of the top of the housing 1. The lead screw of the lead screw motor 28 is located directly below the protective cover 41. The arc-shaped scraper 42 is connected to the middle of the top of the scraper 29. The bottom of the arc-shaped scraper 42 is in contact with the top of the protective cover 41.

[0039] During cooking, oil stains are produced, some of which fall onto the top of the container 1. Food splattering from the cookware also falls onto the top of the container 1, creating kitchen waste. The protective cover 41 can block the oil stains and kitchen waste, preventing oil from drifting onto the lead screw of the lead screw motor 28. The sealing block 40 can seal the guide opening, preventing heat leakage. The lead screw motor 28 can drive the scraper 29 to move backward, which can scrape away the oil stains and kitchen waste from the top of the container 1, preventing them from affecting future use. A container can be placed on the rear side of the container 1 to clean the oil stains and kitchen waste. The scraper 29 can drive the pusher 30 to move backward. The pusher 30 is tilted downward, so the pusher 30 can push the slide plate 26 to move upward. The slide plate 26 drives the sealing plate 27 to move upward. The sealing plate 27 will enter the round hole 4 and seal the round hole 4. The top of the sealing plate 27 will be flush with the top of the box 1, which can prevent oil stains and kitchen waste from falling from the round hole 4 onto the heat conduction plate 3, and can also prevent dust from falling from the round hole 4 onto the heat conduction plate 3. The backward movement of the scraper 29 can also drive the arc-shaped scraper 42 to move backward. The arc-shaped scraper 42 can scrape off the oil stains and kitchen waste on the protective cover 41.

[0040] like Figures 10-12 As shown, it also includes a sealing mechanism, which includes a sealing ring 31, a rack 32, a spur gear 33, and a moving assembly. The right side of the heat pipe 2 and the left side of the air inlet pipe 12 are slidably connected to the sealing ring 31. The sealing ring 31 slides through the connecting frame 11. The upper part of the sealing ring 31 is connected to the rack 32. The top center of the connecting frame 11 is rotatably connected to the spur gear 33. The spur gear 33 and the rack 32 mesh. The moving assembly is used to control the movement of the sealing ring 31 so that the sealing ring 31 is fitted onto the filter element 15.

[0041] like Figures 10-12 As shown, the movable assembly includes a sealing ring 34, a sealing block 35, a spring 36, a sliding rod 37, and a connecting plate 38. The sealing ring 34 is connected to the upper part of the exhaust pipe 21. The sealing block 35 is slidably connected to the right side of the sealing ring 34. Two springs 36 are connected between the left side of the sealing block 35 and the right side of the sealing ring 34. The sliding rod 37 is connected to the left side of the sealing block 35. The sliding rod 37 slides through the left side of the exhaust pipe 21. The connecting plate 38 is connected to the left end of the sliding rod 37. The bottom of the connecting plate 38 is connected to the top of the sealing ring 31 on the left side.

[0042] When air pump 19 is turned off, it indicates that the device is not in use and the sealing ring 31 is not on the filter element 15. At this time, the filter element 15 can be replaced. After air pump 19 is turned on, kiln gas enters the exhaust pipe 21. The kiln gas will push the sealing block 35 to the right, and the spring 36 will be stretched, creating a gap between the sealing block 35 and the sealing ring 34. The kiln gas can enter the water tank 22 through this gap. At the same time, the sealing block 35 will drive the sliding rod 37 to the right, and the sliding rod 37 will drive the connecting plate 38 to the right. The connecting plate 38 drives the left sealing ring 31 and the left rack 32 to move to the right. The left sealing ring 31 will be put onto the filter element 15, improving the sealing between the heat pipe 2 and the filter element 15. The left rack 32 drives the spur gear 33 to rotate. The spur gear 33 drives the right rack 32 to move to the left. The right rack 32 drives the right sealing ring 31 to move to the left. The right sealing ring 31 will be put onto the filter element 15, improving the sealing between the intake pipe 12 and the filter element 15.

[0043] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A waste heat utilization device based on kiln gas, comprising a housing (1), a heat-conducting pipe (2), and a heat-conducting plate (3), wherein the heat-conducting pipe (2) is connected inside the housing (1), the heat-conducting pipe (2) is sealed through the right side of the housing (1), the heat-conducting plate (3) is connected inside the housing (1), and round holes (4) are opened on both the left and right sides of the top of the housing (1), characterized in that: It also includes a first valve (5), a rotating rod (6), a discharge pipe (7), a one-way valve (8), an air outlet pipe (9), a second valve (10), a connecting frame (11), an air inlet pipe (12), a rotating shaft (13), a turntable (14), and a filter element (15). The heat pipe (2) is equipped with a first valve (5) on both the left and right sides. The valve stem of the first valve (5) is rotatably connected to the heat-conducting plate (3). Two rotating rods (6) are rotatably connected to the box body (1). The rotating rods (6) and the valve stem of the first valve (5) are driven by bevel gears. The bottom of the heat pipe (2) is connected to a discharge pipe (7). The discharge pipe (7) is sealed and penetrates the bottom of the box body (1). The left and right sides of the discharge pipe (7) are equipped with one-way valves (8). The bottom left and right sides of the heat pipe (2) are connected to air outlet pipes (9). (9) is connected to the discharge pipe (7), and the air outlet pipe (9) and the discharge pipe (7) are connected. A second valve (10) is installed on the air outlet pipe (9). The valve stem of the second valve (10) is rotatably connected to the box body (1). The rotating rod (6) and the valve stem of the second valve (10) are driven by the pulley group. A connecting frame (11) is connected to the box body (1). An air inlet pipe (12) is connected to the bottom of the connecting frame (11). A rotating shaft (13) is rotatably connected to the box body (1). A turntable (14) is connected to the middle of the rotating shaft (13). Four filter elements (15) for filtering dust in the kiln gas are evenly spaced around the turntable (14). One of the filter elements (15) is in contact with the heat conduction pipe (2) and the air inlet pipe (12). The air inlet pipe (12) is connected to the heat conduction pipe (2) through the filter element (15).

2. A waste heat utilization device based on kiln gas according to claim 1, characterized in that: It also includes a water heating mechanism, which includes a tank (16), a water inlet pipe (17), a drain pipe (18), an air pump (19), an air intake pipe (20), an exhaust pipe (21), a water tank (22), a water outlet pipe (23), and a discharge pipe (24). The top of the tank (16) is connected to the water inlet pipe (17), and the bottom of the tank (16) is connected to the drain pipe (18). The air pump (19) is connected to the tank (16), and the air intake end of the air pump (19) is connected to the air intake pipe (20) for air intake. Pipe (20) and discharge pipe (7) are connected. The air outlet of air pump (19) is connected to exhaust pipe (21). Exhaust pipe (21) passes through the upper part of tank body (16). The lower end of exhaust pipe (21) is connected to water tank (22). Water tank (22) is located inside tank body (16). Water outlet pipe (23) is connected to the bottom of water tank (22). Water outlet pipe (23) passes through the bottom of tank body (16) in a sealed manner. Discharge pipe (24) is connected to water tank (22). Discharge pipe (24) passes through the top of tank body (16).

3. A waste heat utilization device based on kiln gas according to claim 2, characterized in that: It also includes a scraping mechanism, which includes a sliding plate (26), a guide rod (261), a sealing plate (27), a screw motor (28), a scraper (29), and a pusher (30). The left and right sides of the housing (1) have guide openings, and the sliding plates (26) are slidably connected in the guide openings. The top of the heat-conducting plate (3) is connected to two guide rods (261), and the two guide rods (261) are slidably connected to the two sliding plates (26) respectively. The top of the sliding plates (26) is connected to a sealing plate (27). A screw motor (28) is installed on the top of the box (1). A scraper (29) for scraping off oil stains and kitchen waste on the top of the box (1) is connected to the screw of the screw motor (28) by a thread. The bottom of the scraper (29) is in contact with the top of the box (1). Two push plates (30) are connected to the scraper (29). The push plates (30) are used to push the slide plate (26) to move upward. The slide plate (26) drives the sealing plate (27) to move upward. The sealing plate (27) seals the round hole (4).

4. A waste heat utilization device based on kiln gas according to claim 3, characterized in that: It also includes a sealing mechanism, which includes a sealing ring (31), a rack (32), a spur gear (33) and a moving component. The sealing ring (31) is slidably connected to both the heat pipe (2) and the air inlet pipe (12). The sealing ring (31) slides through the connecting frame (11). The rack (32) is connected to both the sealing ring (31). The spur gear (33) is rotatably connected to the top of the connecting frame (11). The spur gear (33) and the rack (32) mesh. The moving component is used to control the movement of the sealing ring (31) so that the sealing ring (31) is fitted onto the filter element (15).

5. A waste heat utilization device based on kiln gas according to claim 4, characterized in that: The movable component includes a sealing ring (34), a sealing block (35), a spring (36), a slide rod (37), and a connecting plate (38). The sealing ring (34) is connected inside the exhaust pipe (21). The sealing block (35) is slidably connected to the sealing ring (34). The spring (36) is connected between the sealing block (35) and the sealing ring (34). The slide rod (37) is connected to the sealing block (35). The slide rod (37) slides through the exhaust pipe (21). The connecting plate (38) is connected to the slide rod (37). The connecting plate (38) is connected to the sealing ring (31) on the left side.

6. A waste heat utilization device based on kiln gas according to claim 5, characterized in that: It also includes a heat insulation plate (39), and the heat conduction plate (3) is connected to the middle of the top of the heat insulation plate (3).

7. A waste heat utilization device based on kiln gas according to claim 6, characterized in that: It also includes a sealing block (40), and the slide plate (26) is connected to a sealing block (40) for sealing the guide opening.

8. A waste heat utilization device based on kiln gas according to claim 7, characterized in that: It also includes a protective cover (41) and an arc-shaped scraper (42). The top of the box (1) is connected to a protective cover (41) for blocking oil stains and kitchen waste. The screw of the screw motor (28) is located directly below the protective cover (41). The top of the scraper (29) is connected to an arc-shaped scraper (42), and the arc-shaped scraper (42) and the top of the protective cover (41) are in contact.

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