Industrial furnace waste heat recovery and utilization device

Abstract

The present invention relates to the field of waste heat utilization, and in particular to a waste heat recovery and utilization device for an industrial furnace, including an air intake pipe and a heat exchange pipe; a spiral heat exchange pipe is fixedly connected in the air intake pipe; a containing ring, a circulation pipe, etc. are also included; the air intake pipe is detachably connected to the containing ring, and the containing ring is set to be convex in the middle; the containing ring is connected to the circulation pipe, and the circulation pipe is connected to the heat exchange pipe. In the present invention, when the amount of flue gas entering from the air intake pipe is too much, the sensor in the air intake pipe detects the change in the amount of flue gas, and then controls the electric push rod to drive the heat transfer plate I to slide upward along the circulation pipe, and then the flue gas escapes from the gap between the heat transfer plate I and the containing ring to the top of the heat transfer plate I, slowing down the amount of flue gas accumulated below the heat transfer plate I, and the flue gas escaping to the top of the heat transfer plate I continues to rise and is discharged from the upper end of the containing ring through the air hole II, and then the cold water in the heat transfer plate II is heated, so as to utilize the waste heat of the excess flue gas, and avoid the excess flue gas being directly discharged to the outside, causing heat waste.

Description

Technical Field

[0001] The present invention relates to the field of waste heat utilization, and in particular to a waste heat recovery and utilization device for an industrial furnace. Background Art

[0002] The existing Chinese patent with publication number CN116678226B discloses a kiln waste heat recovery and utilization device, which continuously injects cold water into the first heat transfer plate through the water supply part. When the flue gas passes through the first heat transfer plate through various connecting grooves and air ducts, the flue gas exchanges heat with the water in the first heat transfer plate, so that the water temperature increases. When the first heat transfer plate is filled with water, the water in the first heat transfer plate will enter the second heat transfer plate through the first connecting pipe. When the flue gas passes through the second heat transfer plate through various connecting grooves and air ducts, the flue gas exchanges heat with the second heat transfer plate and the water in the first connecting pipe, and the water is heated again. In addition, the excess flue gas in the exhaust pipe can be depressurized through the pressure relief groove, thereby improving the safety of the installation barrel.

[0003] However, after the high-temperature flue gas discharged from the kiln furnace enters the exhaust pipe, the excess flue gas is directly discharged from the pressure relief groove, which causes part of the flue gas to be wasted, reduces the utilization rate of the flue gas, and has a poor effect on the recovery and utilization of the flue gas waste heat. Summary of the invention

[0004] In order to overcome the shortcomings of wasting part of the flue gas, reducing the utilization rate of the flue gas, and having a poor effect on the recovery and utilization of the waste heat of the flue gas when the excess flue gas is directly discharged from the pressure relief tank, the present invention provides an industrial furnace waste heat recovery and utilization device.

[0005] The technical scheme of the present invention is: an industrial furnace waste heat recovery and utilization device, including an intake pipe and a heat exchange pipe; a spiral heat exchange pipe is fixedly connected in the intake pipe; the intake pipe is connected to a sensor; it also includes a containing ring, a circulation pipe, a heat conduction plate I, a heat conduction plate II, a connecting pipe and an electric push rod; the intake pipe is detachably connected to the containing ring, and the containing ring is arranged to be convex in the middle; the containing ring is connected to the circulation pipe, and the circulation pipe is connected to the heat exchange pipe; the circulation pipe is provided with a plurality of circular holes; the circulation pipe is connected to the heat conduction plate I, The heat-conducting plate I is hollow; a plurality of air holes I are provided on the heat-conducting plate I; the circulation pipe is connected with the heat-conducting plate II, and the heat-conducting plate II is hollow, and the heat-conducting plate II is connected with the circular hole; a plurality of air holes II are provided on the heat-conducting plate II; the circulation pipe is connected with a plurality of telescopic connecting pipes, and the connecting pipes are connected with the heat-conducting plate I; the accommodating ring is fixedly connected with an electric push rod, and the telescopic end of the electric push rod passes through the accommodating ring, and the telescopic end of the electric push rod is slidably connected with the heat-conducting plate I, and the electric push rod is connected with the sensor on the intake pipe.

[0006] Furthermore, it also includes a limit block and a telescopic tube; the limit block is fixed in the circulation tube, and the limit block is located between the circular hole and the connecting tube; the heat conduction plate I is connected to a plurality of telescopic tubes, and the telescopic tubes are connected to the heat conduction plate II.

[0007] Furthermore, it also includes punctures; a plurality of punctures are fixedly connected to the upper side of the heat conducting plate I and the lower side of the heat conducting plate II.

[0008] Furthermore, the receiving ring is provided with a plurality of annular grooves, and the annular grooves are matched with the heat conducting plate I and the heat conducting plate II.

[0009] Furthermore, it also includes a spiral tube; the accommodating ring is fixedly connected with the spiral tube, and the spiral tube is elastic, and the spiral tube is connected to the heat conducting plate I.

[0010] Furthermore, the heat conducting plate I and the heat conducting plate II are arranged in a cone shape.

[0011] Furthermore, it also includes baffle rings; two baffle rings are fixedly connected to the upper side and the lower side of each air hole I; and another two baffle rings are fixedly connected to the upper side and the lower side of each air hole II.

[0012] Furthermore, it also includes blades, cleaning brushes, connecting rings and round rods; the circulation pipe is fixedly connected to a plurality of blades, and the blades are located outside the containing ring; the circulation pipe is fixedly connected to a plurality of cleaning brushes, and the cleaning brushes are in contact with the heat exchange pipe, and the cleaning brushes are arranged in a spiral shape; the circulation pipe is fixedly connected to the heat transfer plate I; the heat transfer plate I is rotatably connected to a connecting ring, and the connecting ring is fixedly connected to the spiral pipe; the heat transfer plate I is fixedly connected to a plurality of round rods.

[0013] Furthermore, it also includes brush rods; the circulation pipe is fixedly connected with a plurality of brush rods, and the brush rods are in contact with the spiral pipe.

[0014] Furthermore, the brush rod is arranged at an inclination.

[0015] The beneficial effect is that when the amount of flue gas entering from the air intake pipe is too much, the flue gas cannot all pass through the heat transfer plate I, thereby increasing the flue gas pressure below the heat transfer plate I, and the sensor in the air intake pipe detects the change in the amount of flue gas, thereby controlling the electric push rod to drive the heat transfer plate I to slide upward along the circulation pipe, and the heat transfer plate I is separated from the contact with the containing ring, and then the flue gas escapes from the gap between the heat transfer plate I and the containing ring to the top of the heat transfer plate I, thereby reducing the amount of flue gas accumulated below the heat transfer plate I, and the flue gas escaping to the top of the heat transfer plate I continues to rise and is discharged from the upper end of the containing ring through the air hole II, thereby heating the cold water in the heat transfer plate II, thereby utilizing the waste heat of the excess flue gas, and avoiding direct discharge of the excess flue gas to the outside, resulting in heat waste.

[0016] In the present invention, when the flue gas volume is normal, the flue gas in the air intake pipe passes through the spiral tube when it rises, and then heats the cold water in the spiral tube, thereby utilizing the waste heat of the flue gas three times. At this time, the spiral tube is in a coiled state, thereby increasing the contact area between the spiral tube and the flue gas and improving the utilization rate of the waste heat of the flue gas. When the flue gas volume is excessive, the heat-conducting plate I moves upward under the drive of the electric push rod, and then the heat-conducting plate I drives one end of the spiral tube to move upward, the spiral tube is stretched and expanded, and the spiral tube undergoes adaptive deformation under the action of its own elasticity. The gap of the spiral tube increases, thereby reducing the obstruction of the spiral tube to the flue gas, facilitating the rising of the flue gas, avoiding the accumulation of flue gas on the lower side of the heat-conducting plate I, and improving the safety of the air intake pipe and the containing ring.

[0017] When the flue gas volume is normal, the circulation pipe of the present invention rotates through the brush rod, and then the brush rod cleans the oil and impurities attached to the spiral tube. When the flue gas volume is too large, the heat conduction plate I moves upward under the push of the electric push rod, and then the heat conduction plate I drives one end of the spiral tube to move upward, the spiral tube unfolds, and the brush rod detaches from the spiral tube. As the flue gas continues to pass through the spiral tube, more and more oil is attached to the spiral tube, thereby reducing the heating efficiency of the cold water in the spiral tube, and the temperature of the water flowing out of the spiral tube decreases. At this time, the electric push rod is controlled to drive the heat conduction plate I to move downward, and the heat conduction plate I drives one end of the spiral tube to move downward, so that the spiral tube contacts the brush rod again, and then the brush rod brushes off the oil stuck to the spiral tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the industrial furnace waste heat recovery and utilization device disclosed in the present invention;

[0019] Figure 2 A cross-sectional view of the industrial furnace waste heat recovery and utilization device disclosed in the present invention;

[0020] Figure 3 It is a schematic diagram of the combined partial structure of the containing ring, the circulation pipe, the heat conducting plate I, the heat conducting plate II and the connecting pipe disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0021] Figure 4 It is a schematic diagram of the combined partial structure of the air intake pipe, the containing ring, the storage ring, the circulation pipe, the heat conducting plate I, the heat conducting plate II, the electric push rod and the blades disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0022] Figure 5 It is a schematic diagram of the combined partial structure of the containing ring, circulating pipe, heat conducting plate I, heat conducting plate II, connecting pipe, limiting block, telescopic pipe, stabbing, spiral pipe and retaining ring disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0023] Figure 6 It is a schematic diagram of the combined partial structure of the containing ring, the circulating pipe, the heat conducting plate I, the heat conducting plate II, the spiral pipe, the connecting ring and the brush rod disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0024] Figure 7 It is a schematic diagram of the combined partial structure of the circulation pipe, heat conducting plate I, round rod, brush rod and spiral pipe disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0025] Figure 8 It is a combined state diagram of the circulation pipe, heat conducting plate I, heat conducting plate II, telescopic pipe, stabbing pipe and spiral pipe disclosed in the industrial furnace waste heat recovery and utilization device of the present invention;

[0026] Fig. 9 The present invention is a diagram showing the combined state of the circulation pipe, heat conducting plate I, spiral pipe and brush rod disclosed in the industrial furnace waste heat recovery and utilization device of the present invention.

[0027] In the accompanying drawings: 1-inlet pipe, 2-containing ring, 3-heat exchange tube, 4-storage ring, 101-circulation tube, 102-heat conduction plate I, 103-heat conduction plate II, 104-connecting pipe, 105-limiting block, 106-telescopic tube, 107-piercing, 108-spiral tube, 109-blocking ring, 1010-electric push rod, 201-blade, 202-cleaning brush, 203-connecting ring, 204-round rod, 206-brush rod, 21-annular groove, 22-collecting groove, 1011-round hole, 1021-pore I, 1031-pore II. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] An industrial furnace waste heat recovery and utilization device, such as Figure 1-9 As shown, it includes an intake pipe 1 and a heat exchange pipe 3; the intake pipe 1 is fixed with a spiral heat exchange pipe 3; the intake pipe 1 is connected with a sensor;

[0031] It also includes a containing ring 2, a circulation pipe 101, a heat conducting plate Ⅰ102, a heat conducting plate Ⅱ103, a connecting pipe 104 and an electric push rod 1010; the intake pipe 1 is detachably connected to the containing ring 2, and the containing ring 2 is configured to be convex in the middle; the containing ring 2 is connected to the circulation pipe 101, and the circulation pipe 101 is connected to the heat exchange pipe 3; the circulation pipe 101 is provided with a plurality of circular holes 1011; the circulation pipe 101 is connected to the heat conducting plate Ⅰ102, and the heat conducting plate Ⅰ102 is hollow; the heat conducting plate Ⅰ102 is provided with a plurality of air holes Ⅰ1021; the circulation pipe 101 is connected to Heat-conducting plate II 103 is hollow and connected with circular hole 1011; heat-conducting plate II 103 is provided with a plurality of air holes II 1031; circulation pipe 101 is connected with two telescopic connecting pipes 104, and connecting pipe 104 is connected with heat-conducting plate I 102; receiving ring 2 is bolted with electric push rod 1010, and the telescopic end of electric push rod 1010 passes through receiving ring 2, and the telescopic end of electric push rod 1010 is slidably connected with heat-conducting plate I 102, and electric push rod 1010 is connected with the sensor on intake pipe 1.

[0032] It also includes a limit block 105 and a telescopic tube 106; the limit block 105 is fixedly connected in the circulation tube 101, and the limit block 105 is located between the circular hole 1011 and the connecting tube 104; the heat conducting plate I 102 is connected to a plurality of telescopic tubes 106, and the telescopic tubes 106 are connected to the heat conducting plate II 103.

[0033] It also includes punctures 107; a plurality of punctures 107 are fixedly connected to the upper side of the heat conducting plate I 102 and the lower side of the heat conducting plate II 103.

[0034] The receiving ring 2 is provided with two annular grooves 21 , and the annular grooves 21 match with the heat conducting plate I 102 and the heat conducting plate II 103 .

[0035] When in use, first connect the external circulating water pipe to the heat exchange pipe 3, and then connect the air intake pipe 1 to the exhaust pipe of the kiln furnace. Next, control the external pump to make the external water pipe pass cold water into the heat exchange pipe 3. The cold water also enters the circulating pipe 101 through the heat exchange pipe 3. The cold water in the circulating pipe 101 enters the heat transfer disk I 102 through the connecting pipe 104. The cold water in the circulating pipe 101 enters the heat transfer disk II 103 through the circular hole 1011. After the high-temperature flue gas generated by the kiln furnace enters the air intake pipe 1, the flue gas contacts the heat exchange pipe 3, and the waste heat of the high-temperature flue gas is used to heat the cold water in the heat exchange pipe 3, thereby making the first use of the waste heat of the flue gas.

[0036] After the high-temperature flue gas continues to rise and contacts the heat-conducting plate Ⅰ102, it continues to rise through the air hole Ⅰ1021 and contacts the heat-conducting plate Ⅱ103, and finally comes out from the upper end of the containing ring 2 through the air hole Ⅱ1031, thereby heating the cold water in the heat-conducting plate Ⅰ102 and the heat-conducting plate Ⅱ103, and making a second use of the residual heat of the flue gas. When the amount of flue gas entering from the air intake pipe 1 is too much, the flue gas cannot all pass through the heat-conducting plate Ⅰ102, thereby increasing the flue gas pressure below the heat-conducting plate Ⅰ102. The sensor in the air intake pipe 1 detects the change in the amount of flue gas, and then controls the electric push rod 1010 to drive the heat-conducting plate Ⅰ102 to slide upward along the circulation pipe 101, and the heat-conducting plate Ⅰ102 breaks away from the contact with the containing ring 2, and then the flue gas escapes from the gap between the heat-conducting plate Ⅰ102 and the containing ring 2 to the top of the heat-conducting plate Ⅰ102, slowing down the amount of flue gas accumulated below the heat-conducting plate Ⅰ102, such as Figure 8 As shown, the flue gas escaping above the heat transfer plate Ⅰ102 continues to rise and is discharged from the upper end of the containing ring 2 through the air hole Ⅱ1031, thereby heating the cold water in the heat transfer plate Ⅱ103, thereby utilizing the waste heat of the excess flue gas and avoiding the excess flue gas from being directly discharged to the outside, causing heat waste.

[0037] After the cold water in the circulation pipe 101 enters the heat conducting plate I 102 under the obstruction of the limit block 105, it enters the heat conducting plate II 103 through the telescopic tube 106, and then flows back to the circulation pipe 101 from the circular hole 1011, so that after the high-temperature flue gas rises and passes through the heat conducting plate I 102, the flue gas heats the cold water in the telescopic tube 106, thereby improving the utilization rate of the flue gas waste heat. When the flue gas volume is normal, the telescopic tube 106 is in an expanded state, increasing the contact area between the flue gas and the telescopic tube 106. When the flue gas volume is large, the amount of oil and dirt contained in the flue gas is also large. When the heat conducting plate I 102 moves upward under the push of the flue gas, the heat conducting plate I 102 squeezes the telescopic tube 106, and the telescopic tube 106 is compressed. Figure 8 As shown, the oil stains in the smoke are reduced from remaining excessively on the telescopic tube 106 .

[0038] When the heat conducting plate I 102 moves upward under the push of the flue gas, the heat conducting plate I 102 and the heat conducting plate II 103 approach each other, and then the puncture 107 on the heat conducting plate I 102 punctures the air inlet hole I 1021, and the puncture 107 on the heat conducting plate II 103 punctures the air inlet hole II 1031, thereby cleaning the impurities adhering to the air holes I 1021 and II 1031. Figure 8 shown.

[0039] When the flue gas volume is normal, the heat conducting plate Ⅰ102 is tightly attached to the annular groove 21 on the inner side of the containing ring 2, thereby sealing the contact area between the heat conducting plate Ⅰ102 and the inner side of the containing ring 2, preventing the flue gas from directly rising from the gap between the heat conducting plate Ⅰ102 and the containing ring 2, reducing the contact between the flue gas and the heat conducting plate Ⅰ102, and thereby reducing the utilization rate of the waste heat.

[0040] Example 2

[0041] On the basis of Example 1, Figure 4-9 As shown, a spiral tube 108 is also included; the accommodating ring 2 is fixedly connected with the spiral tube 108, and the spiral tube 108 is elastic, and the spiral tube 108 is connected to the heat conducting plate I 102.

[0042] The heat conducting plate I 102 and the heat conducting plate II 103 are arranged in a conical shape, so that the oil stains remaining on the heat conducting plate I 102 and the heat conducting plate II 103 can flow away under the action of their own gravity, thereby preventing the oil stains in the flue gas from remaining on the heat conducting plate I 102 and the heat conducting plate II 103 when the flue gas passes through the heat conducting plate I 102 and the heat conducting plate II 103, thereby reducing the heat conduction efficiency of the heat conducting plate I 102 and the heat conducting plate II 103.

[0043] It also includes a retaining ring 109; two retaining rings 109 are fixedly connected to the upper side and the lower side of each air hole I 1021; and another two retaining rings 109 are fixedly connected to the upper side and the lower side of each air hole II 1031.

[0044] It also includes a storage ring 4 ; the air inlet pipe 1 is detachably connected to the storage ring 4 , and the storage ring 4 is in contact with the containing ring 2 ; the containing ring 2 is provided with a collecting groove 22 , and the collecting groove 22 is located above the storage ring 4 .

[0045] First, connect the external water pipe to the spiral tube 108. When the smoke in the intake pipe 1 rises, control the external pump to transport cold water to the spiral tube 108 through the external water pipe. When the smoke volume is normal, the smoke in the intake pipe 1 passes through the spiral tube 108 when it rises, and then heats the cold water in the spiral tube 108, so as to utilize the waste heat of the smoke three times. At this time, the spiral tube 108 is in a coiled state, thereby increasing the contact area between the spiral tube 108 and the smoke and improving the utilization rate of the waste heat of the smoke. When the smoke volume is too much, the heat conducting plate Ⅰ102 moves upward under the drive of the electric push rod 1010, and then the heat conducting plate Ⅰ102 drives one end of the spiral tube 108 to move upward, and the spiral tube 108 is stretched and expanded. The spiral tube 108 undergoes adaptive deformation under the action of its own elasticity, and the gap of the spiral tube 108 increases. Figure 8 As shown, the obstruction of the spiral tube 108 to the smoke is reduced, which facilitates the smoke to rise, avoids the smoke from accumulating on the lower side of the heat conducting plate Ⅰ102, and improves the safety of the air inlet pipe 1 and the containing ring 2.

[0046] As the oil stains remaining on the heat transfer plate Ⅰ102 and the heat transfer plate Ⅱ103 flow away under the action of their own gravity, the oil stains are limited by the retaining ring 109 to prevent the oil stains from flowing into the air holes Ⅰ1021 and the air holes Ⅱ1031, thereby preventing the flue gas from passing through the air holes Ⅰ1021 and the air holes Ⅱ1031.

[0047] The oil dirt flowing into the containing ring 2 flows from the collecting groove 22 into the storage ring 4 for temporary storage, and then the storage ring 4 is manually removed from the air intake pipe 1 for cleaning.

[0048] Example 3

[0049] On the basis of Example 2, Figure 1-2 and Figure 4-9 As shown, it also includes blades 201, cleaning brushes 202, connecting rings 203 and round rods 204; the circulation pipe 101 is fixedly connected with a plurality of blades 201, and the blades 201 are located outside the containing ring 2; the circulation pipe 101 is fixedly connected with a plurality of cleaning brushes 202, and the cleaning brushes 202 are in contact with the heat exchange pipe 3, and the cleaning brushes 202 are spirally arranged; the circulation pipe 101 is fixedly connected to the heat transfer plate Ⅰ102; the heat transfer plate Ⅰ102 is rotatably connected with the connecting ring 203, and the connecting ring 203 is fixedly connected to the spiral pipe 108; the heat transfer plate Ⅰ102 is fixedly connected with a plurality of round rods 204.

[0050] The circulation tube 101 further includes brush rods 206 ; the two brush rods 206 are fixedly connected to the circulation tube 101 , and the brush rods 206 are in contact with the spiral tube 108 .

[0051] The brush rod 206 is arranged at an angle, so that the oil stains adhering to the brush rod 206 can flow away under the action of its own gravity, thereby preventing the oil stains from adhering to the brush rod 206 .

[0052] When the flue gas is discharged from the upper end of the containing ring 2, the blades 201 are blown to rotate, and then the blades 201 drive the circulation pipe 101 to rotate, and the circulation pipe 101 drives the heat transfer plate II 103 and the cleaning brush 202 to rotate, and the circulation pipe 101 drives the heat transfer plate I 102 to rotate through the round rod 204, and the connecting ring 203 rotates on the heat transfer plate I 102, so that the spiral tube 108 remains stationary, and then the oil stains on the heat transfer plates I 102 and II 103 are thrown outwards under the action of centrifugal force, thereby accelerating the flow efficiency of the oil stains on the heat transfer plates I 102 and II 103, and the spirally arranged cleaning brush 202 brushes off the oil stains and impurities attached to the heat exchange tube 3, thereby cleaning the heat exchange tube 3.

[0053] When the flue gas volume is normal, the circulation pipe 101 drives the brush rod 206 to rotate, and then the brush rod 206 cleans the oil and impurities attached to the spiral tube 108. When the flue gas volume is too large, the heat conduction plate Ⅰ102 moves upward under the push of the electric push rod 1010, and then the heat conduction plate Ⅰ102 drives one end of the spiral tube 108 to move upward, the spiral tube 108 unfolds, and the brush rod 206 detaches from the spiral tube 108. As the flue gas continues to pass through the spiral tube 108, more and more oil is attached to the spiral tube 108, thereby reducing the heating efficiency of the cold water in the spiral tube 108, and the temperature of the water flowing out of the spiral tube 108 decreases. At this time, the electric push rod 1010 is controlled to drive the heat conduction plate Ⅰ102 to move downward, and the heat conduction plate Ⅰ102 drives one end of the spiral tube 108 to move downward, so that the spiral tube 108 contacts the brush rod 206 again, and then the brush rod 206 brushes off the oil stuck on the spiral tube 108.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An industrial furnace waste heat recovery device, comprising an air intake pipe (1) and a heat exchange pipe (3); a spiral heat exchange pipe (3) is fixedly connected inside the air intake pipe (1); and a sensor is connected to the air intake pipe (1); the characteristics are: The invention also comprises a containing ring (2), a circulation pipe (101), a heat conducting plate I (102), a heat conducting plate II (103), a connecting pipe (104) and an electric push rod (1010); the air intake pipe (1) is detachably connected to the containing ring (2), and the containing ring (2) is arranged to be convex in the middle; the containing ring (2) is connected to the circulation pipe (101), and the circulation pipe (101) is connected to the heat exchange pipe (3); the circulation pipe (101) is provided with a plurality of circular holes (1011); the circulation pipe (101) is connected to the heat conducting plate I (102), and the heat conducting plate I (102) is arranged to be hollow; the heat conducting plate I (102) is provided with a plurality of air holes I (1021); the circulation pipe (101 ) is connected to a heat conducting plate II (103), and the heat conducting plate II (103) is hollow, and the heat conducting plate II (103) is connected to the circular hole (1011); the heat conducting plate II (103) is provided with a plurality of air holes II (1031); the circulation pipe (101) is connected to a plurality of telescopic connecting pipes (104), and the connecting pipes (104) are connected to the heat conducting plate I (102); the containing ring (2) is fixedly connected to an electric push rod (1010), and the telescopic end of the electric push rod (1010) passes through the containing ring (2), and the telescopic end of the electric push rod (1010) is slidably connected to the heat conducting plate I (102), and the electric push rod (1010) is connected to a sensor on the air intake pipe (1); It also includes a limit block (105) and a telescopic tube (106); the limit block (105) is fixedly connected inside the circulation tube (101), and the limit block (105) is located between the circular hole (1011) and the connecting tube (104); the heat conducting plate I (102) is connected to a plurality of telescopic tubes (106), and the telescopic tubes (106) are connected to the heat conducting plate II (103); It also includes punctures (107); a plurality of punctures (107) are fixedly connected to the upper side of the heat conducting plate I (102) and the lower side of the heat conducting plate II (103).

2. The industrial furnace waste heat recovery device according to claim 1, characterized in that: The accommodating ring (2) is provided with a plurality of annular grooves (21), and the annular grooves (21) are matched with the heat conducting plate I (102) and the heat conducting plate II (103).

3. The industrial furnace waste heat recovery device according to claim 1, characterized in that: It also includes a spiral tube (108); the accommodating ring (2) is fixedly connected with the spiral tube (108), the spiral tube (108) is elastic, and the spiral tube (108) is connected to the heat conducting plate I (102).

4. The industrial furnace waste heat recovery device according to claim 1, characterized in that: The heat conducting plate I (102) and the heat conducting plate II (103) are arranged in a conical shape.

5. The industrial furnace waste heat recovery device according to claim 1, characterized in that: It also includes a retaining ring (109); two retaining rings (109) are fixedly connected to the upper side and the lower side of each air hole I (1021); and another two retaining rings (109) are fixedly connected to the upper side and the lower side of each air hole II (1031).

6. The industrial furnace waste heat recovery device according to claim 3 is characterized in that: It also includes blades (201), cleaning brushes (202), connecting rings (203) and round rods (204); the circulation tube (101) is fixedly connected to a plurality of blades (201), and the blades (201) are located outside the containing ring (2); the circulation tube (101) is fixedly connected to a plurality of cleaning brushes (202), and the cleaning brushes (202) are in contact with the heat exchange tube (3), and the cleaning brushes (202) are arranged in a spiral shape; the circulation tube (101) is fixedly connected to the heat conduction disk I (102); the heat conduction disk I (102) is rotatably connected to the connecting ring (203), and the connecting ring (203) is fixedly connected to the spiral tube (108); and the heat conduction disk I (102) is fixedly connected to a plurality of round rods (204).

7. The industrial furnace waste heat recovery device according to claim 3 is characterized in that: It also includes brush rods (206); a plurality of brush rods (206) are fixedly connected to the circulation tube (101), and the brush rods (206) are in contact with the spiral tube (108).

8. The industrial furnace waste heat recovery device according to claim 7, characterized in that: The brush rod (206) is arranged in an inclined manner.

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