Waste heat recycling device for aluminum bar heating furnace for profile production

Abstract

The invention discloses a waste heat recycling device for an aluminum bar heating furnace for profile production. The waste heat recycling device comprises a first heat recycling mechanism. The first heat recovery mechanism comprises a first heat insulation cover, a first heat conduction pipe, a transmission pipe and a first driving mechanism; the first heat conduction pipe is arranged in the first heat insulation cover, the first heat conduction pipe is connected with the conveying pipe, a conveying groove is formed in the pipe wall of the conveying pipe, and the first driving mechanism drives the conveying pipe to rotate; the inner wall of the first heat insulation cover is provided with guide strips distributed in a spiral shape, the surface of one end of the first heat insulation cover is provided with a feeding port, the surface of the first heat conduction pipe is provided with a plurality of isolation strips, and the surface of the first heat conduction pipe is provided with a plurality of first air grooves. According to the waste heat recovery system, waste heat of the aluminum bar heating furnace is effectively recovered, heat is fully utilized, and the working environment is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of energy recovery and utilization, and in particular to a waste heat and temperature recovery device for an aluminum rod heating furnace used in profile production. Background Art

[0002] Aluminum profile processing plays a key role in the manufacturing industry, and the energy consumption and utilization efficiency of its production process are crucial. At present, aluminum profile processing mainly adopts the process of extruding heated aluminum bars. Specifically, the aluminum bars are first heated to a specific temperature with the help of an induction heating furnace, and then placed in an extruder and pressed into the die orifice to form a profile with the desired cross-sectional shape.

[0003] In the existing aluminum profile production process, induction heating furnaces are widely used because they can directly heat aluminum bars using the electromagnetic induction eddy current effect, and have the advantages of fast heating speed, energy saving and high efficiency, and precise temperature control. Although the induction heating furnace maintains the external temperature of the furnace body at a low level by setting up insulation measures and water cooling mechanisms, these two protective measures are essentially just to isolate and conduct the waste heat and residual temperature dissipated by the induction heating furnace, and do not effectively recover and reuse this heat, resulting in insufficient centralized and efficient energy utilization, reduced energy utilization, and deficiencies in energy saving and environmental protection in the aluminum bar heating process.

[0004] As for the existing protection measures for the induction heating furnace, on the one hand, the high-performance insulation materials are expensive, which undoubtedly increases the investment cost of the enterprise. On the other hand, water cooling measures can only cool the outer shell of the furnace and reduce the temperature difference between the inside and outside of the induction heating furnace to improve the working environment. However, the water cooling method only conducts and transfers the residual heat and residual temperature of the furnace, and does not effectively collect and utilize this part of the heat, resulting in energy loss.

[0005] In the existing technology, waste heat recovery usually adopts the method of absorbing the escaped heat with a medium and then outputting the absorbed heat in a specific way. However, the energy utilization efficiency of this waste heat recovery method is low, and the entire energy recovery system requires a certain amount of pipeline laying costs, and the economic benefits it brings are not satisfactory. Summary of the invention

[0006] The purpose of the present invention is to provide a waste heat and temperature recovery device for an aluminum rod heating furnace used in profile production, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a waste heat and temperature recovery device for an aluminum rod heating furnace for profile production, comprising a first heat recovery mechanism;

[0008] The first heat recovery mechanism includes a first heat insulation cover, a first heat conducting pipe, a transmission pipe and a first driving mechanism;

[0009] The first heat-conducting pipe is arranged inside the first heat-insulating cover, the first heat-conducting pipe is connected to the transmission pipe, a transmission groove is provided on the pipe wall of the transmission pipe, and the first driving mechanism drives the transmission pipe to rotate;

[0010] The inner wall of the first heat insulation cover is provided with spirally distributed guide strips, and a feed port is opened on one end surface of the first heat insulation cover, a plurality of isolation strips are arranged on the surface of the first heat conduction pipe, and a plurality of first air grooves are opened on the surface of the first heat conduction pipe.

[0011] Preferably, the first heat recovery mechanism comprises a cover plate, and the cover plate is arranged inside the feed port.

[0012] Preferably, the first driving mechanism comprises a first motor and a first transmission gear, and the first transmission gear is connected to an output end of the first motor;

[0013] A gear ring is disposed on one end surface of the transmission pipe, and the gear ring is meshed with the first transmission gear.

[0014] Preferably, the number of the transmission slots is one or more.

[0015] Preferably, it comprises a propulsion mechanism, the propulsion mechanism comprises a cylinder and a push plate, the push plate is connected to the output end of the cylinder;

[0016] The push plate is located inside the transmission tube.

[0017] Preferably, the first heat recovery mechanism comprises a distance sensor, and the distance sensor and the transmission pipe are respectively located at the same end of the first heat insulation cover.

[0018] Preferably, one end surface of the first heat insulation cover is provided with an air window, and the number of the air windows is one or more.

[0019] Preferably, a second heat recovery mechanism is included, and the first heat recovery mechanism is internally connected to the second heat recovery mechanism;

[0020] The second heat recovery mechanism includes a second heat insulation cover, a second driving mechanism, a second heat conducting pipe and an impeller, a surface of the second heat conducting pipe is provided with a plurality of second air grooves, the second heat conducting pipe is arranged inside the second heat insulation cover, the impeller is sleeved on the pipe wall surface of the second heat conducting pipe, and the second driving mechanism drives the impeller to rotate;

[0021] A plurality of fins are arranged on the surface of the second heat-conducting pipe, and a bearing is arranged between the pipe wall of the second heat-conducting pipe and the impeller.

[0022] Preferably, the second driving mechanism comprises a second motor and a second transmission gear, and the second transmission gear is meshed with an output end of the second motor;

[0023] A tooth groove is provided at the edge of the impeller, and the second transmission gear is meshed with the tooth groove.

[0024] Preferably, the second heat recovery mechanism comprises a temperature sensor, and the temperature sensor is arranged on the inner wall of the second heat insulation cover.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention achieves the effect of effectively collecting the heat dissipated outside the heating mechanism and using it for preheating the aluminum rod by setting a first heat recovery mechanism. The first heat recovery mechanism isolates the heat dissipated outside the heating mechanism from the external space, which can reduce heat dissipation and improve the production environment on the one hand, and on the other hand, the aluminum rod to be heated can be transmitted and the aluminum rod can be preheated by using the heat dissipation, which not only improves the utilization efficiency of waste heat, but also improves the heating efficiency of the aluminum rod.

[0027] 2. The present invention achieves the effect of directly inputting the preheated aluminum rod into the heating mechanism by setting a propulsion mechanism. The propulsion mechanism can push the aluminum rod preheated in the first heat recovery mechanism into the heating mechanism, thereby achieving the continuous preheating and feeding process, effectively reducing the heat consumption of the preheated aluminum rod during the transportation process, and ensuring the preheating effect of the aluminum rod.

[0028] 3. The present invention achieves the effect of effectively collecting and reusing the heat at the outlet of the heating mechanism by setting up a second heat recovery mechanism. The second heat recovery mechanism absorbs the heat dissipated at the outlet of the heating mechanism and transmits it to the first heat recovery mechanism, further improving the effect of preheating the aluminum rod by the first heat recovery mechanism, thereby achieving the effect of fully recovering and reusing the waste heat and waste temperature at the outlet of the heating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the appearance structure of an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the main cross-sectional structure in an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the exploded structure of the axial component in the embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the internal structure of the first heat recovery mechanism in an embodiment of the present invention;

[0033] Figure 5It is a perspective structural schematic diagram of a first heat shield in an embodiment of the present invention;

[0034] Figure 6 is a schematic diagram of the appearance structure of a transmission tube in an embodiment of the present invention;

[0035] Figure 7 Schematic diagram of the position distribution of the propulsion mechanism and the transmission tube in an embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of the exploded structure of the axial parts of the second heat recovery mechanism in an embodiment of the present invention;

[0037] Fig. 9 It is a schematic diagram of the main cross-sectional structure of the second heat recovery mechanism in an embodiment of the present invention.

[0038] In the figure:

[0039] 100, first heat recovery mechanism; 110, first heat shield; 111, guide bar; 112, feed port; 113, air window; 120, first heat pipe; 121, isolation bar; 122, first air slot; 130, distance sensor; 140, cover plate; 150, transmission pipe; 151, transmission slot; 152, gear ring; 160, first driving mechanism; 161, first motor; 162, first transmission gear;

[0040] 200, second heat recovery mechanism; 210, second heat shield; 220, second drive mechanism; 221, second motor; 222, second transmission gear; 230, second heat pipe; 231, fin; 232, bearing; 233, second air groove; 240, impeller; 241, tooth groove; 250, temperature sensor;

[0041] 300, propulsion mechanism; 310, cylinder; 320, push plate;

[0042] 400. Heating mechanism. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 9 , the present invention provides the following two embodiments:

[0045] Embodiment 1:

[0046] See also Figures 1 to 3 , a waste heat recovery device for an aluminum rod heating furnace for profile production, comprising a first heat recovery mechanism 100.

[0047] See also Figure 2 and Figure 3 The first heat recovery mechanism 100 is arranged outside the heating mechanism 400, and is used to effectively collect the waste heat and residual temperature dissipated from the outside of the heating mechanism 400, and use the dissipated waste heat and residual temperature to preheat the aluminum rod.

[0048] Specifically, the heating mechanism 400 adopts a medium frequency or high frequency induction heating furnace, whose main structure is a hollow copper tube, a spirally rotating induction coil, an insulating layer and a power supply system. After the induction coil is energized, the aluminum rod moves in the hollow copper tube, and the induction coil generates eddy currents inside the aluminum rod, thereby generating heat to heat the aluminum rod.

[0049] See also Figures 2 to 6 The first heat recovery mechanism 100 includes a first heat insulation cover 110 , a first heat conducting pipe 120 , a transmission pipe 150 and a first driving mechanism 160 .

[0050] Specifically, the first heat insulation cover 110 is used to form the outer shell structure of the first heat recovery mechanism 100, and adopts a heat insulation material, which prevents internal heat from escaping on the one hand, and improves the working environment temperature on the other hand. The first heat pipe 120 is used to absorb the heat dissipated from the outer wall of the heating mechanism 400 on the one hand, and on the other hand, serves as a driving component to drive the aluminum rod to move continuously in the first heat recovery mechanism 100.

[0051] See also Figure 4 and Figure 6 The first heat conducting pipe 120 is disposed inside the first heat insulating cover 110 . The first heat conducting pipe 120 is connected to the transmission pipe 150 . A transmission groove 151 is provided on the pipe wall of the transmission pipe 150 . The first driving mechanism 160 drives the transmission pipe 150 to rotate.

[0052] It is worth noting that the inner diameter of the transfer tube 150 is the same as the diameter of the hollow copper tube in the heating mechanism 400 .

[0053] See also Figure 7 The first driving mechanism 160 includes a first motor 161 and a first transmission gear 162 , and the first transmission gear 162 is connected to the output end of the first motor 161 .

[0054] A gear ring 152 is disposed on one end surface of the transmission pipe 150 , and the gear ring 152 is meshed with the first transmission gear 162 .

[0055] When the first driving mechanism 160 drives the transmission pipe 150 to rotate, the transmission pipe 150 can also drive the first heat conducting pipe 120 to rotate, so as to facilitate the continuous transmission of the aluminum rod in the first heat recovery mechanism 100.

[0056] Specifically, the transmission pipe 150 is used to construct a transmission channel between the first heat recovery mechanism 100 and the heating mechanism 400, eliminating the need to transport the preheated aluminum rod through the outdoor environment to the interior of the heating mechanism 400, thereby reducing heat dissipation and ensuring the aluminum rod is preheated using waste heat.

[0057] See also Figure 5 The inner wall of the first heat insulation cover 110 is provided with spirally distributed guide strips 111, and a feed port 112 is opened on one end surface of the first heat insulation cover 110, a plurality of isolation strips 121 are arranged on the surface of the first heat conduction pipe 120, and a plurality of first air grooves 122 are opened on the surface of the first heat conduction pipe 120.

[0058] It is worth noting that the diameter of the circular track formed by the edges of the plurality of isolation strips 121 is smaller than the inner wall diameter of the guide strip 111 .

[0059] At the same time, the spiral pitch of the guide strip 111 is adapted to the length of the aluminum rod, and the distance between the inner wall of the first heat insulation cover 110 and the outer wall of the first heat conducting pipe 120 is adapted to the diameter of the aluminum rod.

[0060] Specifically, when the heating mechanism 400 is working, the residual heat and temperature dissipated from the outer wall of the heating mechanism 400 are gathered in the first heat pipe 120 . On the one hand, the residual heat and temperature are conducted through the first heat pipe 120 , and on the other hand, they can flow into the first heat insulation cover 110 through the first air groove 122 along with the airflow.

[0061] The aluminum rod enters the first heat insulation cover 110 through the feed port 112. Due to the isolation strips 121 provided on the first heat conducting tube 120, after entering the first heat insulation cover 110, the aluminum rod is located in the area between adjacent isolation strips 121 on the surface of the first heat conducting tube 120. In conjunction with the rotation of the first heat conducting tube 120, the isolation strips 121 push the aluminum rod along the initial position of the guide strips 111 on the inner wall of the first heat insulation cover 110 to enter the preheating space.

[0062] Since the guide bar 111 is spiral, the edge of the aluminum rod moves along the surface of the guide bar 111 under the movement of the isolation bar 121, and the aluminum rod moves along the surface of the first heat conducting pipe 120, so that the aluminum rod moves spirally in the first heat recovery mechanism 100, increasing the preheating path and retention time of the aluminum rod. With the help of the residual heat and temperature stored in the first heat recovery mechanism 100, the aluminum rod is fully preheated to achieve efficient recovery and reuse of the residual heat and temperature.

[0063] See also Figure 2 and Figure 3The first heat recovery mechanism 100 includes a cover plate 140 , and the cover plate 140 is disposed inside the feed port 112 .

[0064] Specifically, the cover plate 140 and the first heat insulation cover 110 are made of the same material, both of which are heat-insulating materials. The cover plate 140 is used to shield the feed port 112 to prevent the heat in the first heat recovery mechanism 100 from escaping from the feed port 112 and maintain the closed state inside the first heat recovery mechanism 100.

[0065] It is worth noting that the number of the transmission grooves 151 is one or more. Specifically, the number of the transmission grooves 151 is one. The transmission groove 151 is used to transmit the aluminum rod moved to the end of the guide bar 111 to the inside of the transmission tube 150.

[0066] Specifically, the aluminum rod heating furnace waste heat and waste temperature recovery device further includes a propulsion mechanism 300 , which includes a cylinder 310 and a push plate 320 , and the push plate 320 is connected to the output end of the cylinder 310 . The push plate 320 is located inside the transmission pipe 150 .

[0067] When the aluminum rod falls into the transmission tube 150 through the transmission groove 151, the pushing mechanism 300 pushes the aluminum rod out into the interior of the heating mechanism 400. Specifically, the cylinder 310 pushes out the push plate 320. The pushing stroke of the cylinder 310 corresponds to the length of the aluminum rod, that is, after the aluminum rods fall into the transmission tube 150 one by one, the pushing stroke of the push plate 320 is the same as the length of the aluminum rod, and the aluminum rod can be completely pushed into the heating mechanism 400. Secondly, after the push plate 320 retracts, the reserved space in the transmission tube 150 can meet the subsequent output of aluminum rods of the same length. Repeat this process to push aluminum rods of the same length into the heating mechanism 400 one by one, forming a continuous aluminum rod preheating, output, and heating process.

[0068] It is worth noting that the first heat recovery mechanism 100 includes a distance sensor 130 , and the distance sensor 130 and the transmission pipe 150 are respectively located at the same end of the first heat insulation cover 110 .

[0069] The distance sensor 130 is used to detect the rotation position of the transmission slot 151 and the state of the aluminum rod passing through the transmission slot 151 .

[0070] Specific:

[0071] When the transmission slot 151 rotates to face the distance sensor 130 and there is no aluminum rod inside the transmission slot 151, the distance detected by the distance sensor 130 is the maximum value, and a signal is output to the propulsion mechanism 300, and the propulsion mechanism 300 does not move;

[0072] When the transmission slot 151 is not rotated to face the distance sensor 130, and there is an aluminum rod between the inside of the transmission tube 150 and the distance sensor 130, the distance value detected by the distance sensor 130 is the minimum value;

[0073] When the aluminum rod falls from the transmission slot 151 into the transmission tube 150, the distance value detected by the distance sensor 130 changes greatly in a short time, and this value change serves as a prerequisite for the action of the propulsion mechanism 300. This value change reflects that the aluminum rod enters the transmission tube 150, and the propulsion mechanism 300 pushes out the push plate 320 through the cylinder 310, thereby pushing the aluminum rod into the heating mechanism 400, and then the push plate 320 is immediately reset.

[0074] It is worth noting that the first motor 161 adopts a servo motor and is equipped with a servo controller, through which the servo controller can control the speed, periodic rotation number, periodic rotation angle and other operating parameters of the first motor 161, which is used to control the residence time of the aluminum rod in the first heat recovery mechanism 100 and the frequency of the aluminum rod input into the heating mechanism 400. The staff can flexibly adjust the speed and frequency of the aluminum rod input into the heating mechanism 400 according to the actual needs of use, to ensure the best heating speed and heating temperature and maintain the appropriate aluminum rod preheating time.

[0075] Based on the content of the above embodiment 1, another embodiment is proposed:

[0076] Embodiment 2:

[0077] See also Figure 3 and Figure 4 An air window 113 is provided on one end surface of the first heat insulation cover 110. The number of the air windows 113 is one or more. Specifically, the number of the air windows 113 is six. The air windows 113 are used to connect the space inside the first heat recovery mechanism 100 and the second heat recovery mechanism 200.

[0078] See also Figures 1 to 3 , including a second heat recovery mechanism 200, the first heat recovery mechanism 100 is connected to the inside of the second heat recovery mechanism 200. The second heat recovery mechanism 200 is connected to one end of the heating mechanism 400. Specifically, the second heat recovery mechanism 200 is used to effectively recover the waste heat and temperature dissipated from the output end space of the heating mechanism 400, and transmit the heat to the first heat recovery mechanism 100 for preheating the aluminum rod inside the first heat recovery mechanism 100.

[0079] See also Figure 3 , Figure 8 and Fig. 9 The second heat recovery mechanism 200 includes a second heat insulation cover 210 , a second driving mechanism 220 , a second heat conducting pipe 230 and an impeller 240 .

[0080] Specifically, the second heat conducting pipe 230 is connected to the hollow copper pipe of the heating mechanism 400 and has the same inner diameter.

[0081] See also Figure 8 and Fig. 9 The second heat conducting pipe 230 is disposed inside the second heat insulating cover 210 , and a plurality of second air grooves 233 are formed on the surface of the second heat conducting pipe 230 .

[0082] Specifically, the second heat pipe 230 directly absorbs the waste heat dissipated at the outlet of the heating mechanism 400 on the one hand, and on the other hand, the hot air enters the second heat recovery mechanism 200 through the second air groove 233 .

[0083] A plurality of fins 231 are provided on the surface of the second heat pipe 230 . When the heat absorbed by the second heat pipe 230 is diffused through the fins 231 , the residual heat and temperature at the opening of the heating mechanism 400 are fully absorbed, thereby reducing the heat loss at the opening of the heating mechanism 400 .

[0084] See also Figure 8 and Fig. 9 The impeller 240 is sleeved on the wall surface of the second heat-conducting pipe 230. A bearing 232 is provided between the wall of the second heat-conducting pipe 230 and the impeller 240. The bearing 232 is used to improve the rotational smoothness between the impeller 240 and the second heat-conducting pipe 230 and reduce mechanical wear. The second driving mechanism 220 drives the impeller 240 to rotate, and the second driving mechanism 220 drives the impeller 240 to rotate, thereby generating a hot air flow input into the first heat recovery mechanism 100, thereby transmitting the heat in the second heat recovery mechanism 200.

[0085] It is worth noting that the second driving mechanism 220 includes a second motor 221 and a second transmission gear 222 , which meshes with the output end of the second motor 221 , and a tooth groove 241 is provided at the edge of the impeller 240 , and the second transmission gear 222 meshes with the tooth groove 241 .

[0086] The second motor 221 is a servo motor and is also equipped with a servo controller. The staff can control the rotation speed of the second motor 221 through the servo controller to adjust the speed of the driving impeller 240, thereby adjusting the speed of the hot air flowing into the first heat recovery mechanism 100.

[0087] It is worth noting that see Fig. 9 The second heat recovery mechanism 200 includes a temperature sensor 250 , and the temperature sensor 250 is disposed on the inner wall of the second heat insulation cover 210 .

[0088] The temperature sensor 250 is used to detect the temperature inside the second heat recovery mechanism 200 , and can be fed back to the second driving mechanism 220 .

[0089] Specifically, when the air temperature in the second heat recovery mechanism 200 is low, the second driving mechanism 220 stops operating. If the temperature in the second heat recovery mechanism 200 is lower than 50°C, air is input into the first heat recovery mechanism 100, which will affect the preheating temperature of the aluminum rod in the first heat recovery mechanism 100.

[0090] When the air temperature in the second heat recovery mechanism 200 is greater than 50°C, the second driving mechanism 220 operates at a low speed to deliver a small amount of airflow to the first heat recovery mechanism 100, thereby circulating and preheating the air in the air passages connecting the heating mechanism 400, the first heat recovery mechanism 100, and the second heat recovery mechanism 200.

[0091] When the temperature of the air passing through the heating mechanism 400 and entering the second heat recovery mechanism 200 through the second air groove 233 is greater than 80°C, the second driving mechanism 220 operates at medium speed, and the hot air is input from the second heat recovery mechanism 200 to the first heat recovery mechanism 100, and enters the heating mechanism 400 through the transmission groove 151.

[0092] Due to the rotation of the impeller 240, low pressure is formed in the second heat recovery mechanism 200, and the air at the outlet of the heating mechanism 400 is sucked into the second heat recovery mechanism 200 through the second air groove 233, forming an air flow circulation, constituting a complete waste heat and waste temperature recycling cycle, and the hot air enters the first heat recovery mechanism 100 from the second heat recovery mechanism 200 in turn to preheat the aluminum rods continuously transmitted in the first heat recovery mechanism 100.

[0093] The waste heat and residual temperature generated by the heating mechanism 400 in the process of heating the aluminum rod are recovered and reused accordingly. The recovered waste heat and residual temperature are only used for preheating the aluminum rod. The utilization of waste heat and residual temperature is more targeted, the company's capital investment in energy conservation and environmental protection is lower, and the energy consumption of the heating mechanism 400 can be effectively reduced, thereby indirectly improving the heating efficiency of the aluminum rod.

[0094] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A waste heat and temperature recovery device for an aluminum rod heating furnace used in profile production, characterized in that: It includes a first heat recovery mechanism (100); The first heat recovery mechanism (100) comprises a first heat insulation cover (110), a first heat conducting pipe (120), a transmission pipe (150) and a first driving mechanism (160); The first heat conducting pipe (120) is arranged inside the first heat insulating cover (110), the first heat conducting pipe (120) is connected to the transmission pipe (150), a transmission groove (151) is provided on the pipe wall of the transmission pipe (150), and the first driving mechanism (160) drives the transmission pipe (150) to rotate; The inner wall of the first heat insulation cover (110) is provided with guide strips (111) distributed in a spiral shape, and a feed port (112) is provided on one end surface of the first heat insulation cover (110), a plurality of isolation strips (121) are provided on the surface of the first heat conduction pipe (120), and a plurality of first air grooves (122) are provided on the surface of the first heat conduction pipe (120).

2. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 1 is characterized in that: The first heat recovery mechanism (100) comprises a cover plate (140), and the cover plate (140) is arranged inside the feed port (112).

3. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 1 is characterized in that: The first driving mechanism (160) comprises a first motor (161) and a first transmission gear (162), wherein the first transmission gear (162) is connected to an output end of the first motor (161); A gear ring (152) is provided on one end surface of the transmission pipe (150), and the gear ring (152) is meshed with the first transmission gear (162).

4. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 1 is characterized in that: The number of the transmission slots (151) is one or more.

5. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 1 is characterized in that: The propulsion mechanism (300) comprises a cylinder (310) and a push plate (320), wherein the push plate (320) is connected to an output end of the cylinder (310); The push plate (320) is located inside the transmission pipe (150).

6. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 5 is characterized in that: The first heat recovery mechanism (100) comprises a distance sensor (130), and the distance sensor (130) and the transmission pipe (150) are respectively located at the same end of the first heat insulation cover (110).

7. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 1 is characterized in that: An air window (113) is provided on one end surface of the first heat insulation cover (110), and the number of the air window (113) is one or more.

8. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 7 is characterized in that: It comprises a second heat recovery mechanism (200), wherein the first heat recovery mechanism (100) is internally connected to the second heat recovery mechanism (200); The second heat recovery mechanism (200) comprises a second heat insulation cover (210), a second driving mechanism (220), a second heat conducting pipe (230) and an impeller (240); a plurality of second air grooves (233) are provided on the surface of the second heat conducting pipe (230); the second heat conducting pipe (230) is arranged inside the second heat insulation cover (210); the impeller (240) is sleeved on the pipe wall surface of the second heat conducting pipe (230); and the second driving mechanism (220) drives the impeller (240) to rotate; A plurality of fins (231) are provided on the surface of the second heat-conducting pipe (230), and a bearing (232) is provided between the pipe wall of the second heat-conducting pipe (230) and the impeller (240).

9. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 8, characterized in that: The second driving mechanism (220) comprises a second motor (221) and a second transmission gear (222), and the second transmission gear (222) is meshed with an output end of the second motor (221); A tooth groove (241) is provided at the edge of the impeller (240), and the second transmission gear (222) is meshed with the tooth groove (241).

10. The device for recovering waste heat and temperature of an aluminum rod heating furnace for profile production according to claim 8, characterized in that: The second heat recovery mechanism (200) comprises a temperature sensor (250), and the temperature sensor (250) is arranged on the inner wall of the second heat insulation cover (210).

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