A thermal energy cycle iron smelting furnace

Abstract

The present invention relates to the technical field of iron smelting furnaces, and specifically relates to a heat energy recycling iron smelting furnace, which includes a furnace body. Iron liquid outlets and miscellaneous material outlets are respectively arranged on both sides of the furnace body. An exhaust pipe is fixedly installed at the top of the furnace body, and the exhaust pipe is used to discharge the combustion exhaust gas inside the furnace body; a feeding pipe is fixedly installed on the side of the furnace body. A rotating cylinder is sleeved outside the feeding pipe, and a heat exchange space is formed between the rotating cylinder and the feeding pipe. One end of the exhaust pipe is communicated with the inside of the heat exchange space. An overflow air hole is arranged on the feeding pipe, and the overflow air hole is used to guide the gas inside the heat exchange space to flow into the feeding pipe. Among them, a high-temperature resistant blower is arranged at one end of the feeding pipe away from the furnace body. In the present invention, a rotating cylinder is arranged outside the feeding pipe, and a heat exchange space is formed between the rotating cylinder and the feeding pipe, which can preheat the coke located inside the feeding pipe, avoiding too large a temperature difference between the coke and the inside of the furnace body and affecting the constancy of the temperature inside the furnace body.

Description

Technical Field

[0001] The present invention relates to the technical field of iron-making furnaces, and particularly to a heat energy recycling iron-making furnace. Background Art

[0002] The working principle of the heat energy recycling iron-making furnace is mainly as follows: after the iron-making furnace is ignited, the heat energy and carbon monoxide generated in the furnace chamber are centrally collected by a recovery hood; then the recovered heat energy and carbon monoxide are introduced into a high-temperature resistant water turbine blower through a pipeline. After that, the blower is driven by an electric motor to blow the heated air (containing carbon monoxide) into the furnace chamber, providing the high-temperature environment required for the reduction reaction of iron ore. In this process, the iron ore undergoes a reduction reaction with carbon monoxide at high temperature to generate metallic iron and carbon dioxide; throughout the process, the heat energy is continuously recovered, transferred, and reused, forming a heat energy cycle to achieve continuous iron-making operations. By recovering and utilizing the heat energy generated during the iron-making process, the goals of heat energy recycling and energy conservation and emission reduction are achieved.

[0003] Usually, coke is also added as a fuel in this process to make the combustion inside the iron-making furnace more vigorous. However, directly supplying normal-temperature coke into the iron-making furnace will cause the local temperature inside the furnace body to drop, change the constant temperature inside the iron-making furnace, and affect the progress of various reactions inside the iron-making furnace. Summary of the Invention

[0004] Technical Problem to be Solved

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a heat energy recycling iron-making furnace, which can effectively solve the problems in the prior art that when supplying coke into the iron-making furnace, the local temperature inside the iron-making furnace will be reduced, and the constancy of the temperature inside the iron-making furnace will be affected.

[0006] Technical Solution

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] The present invention provides a heat energy recycling iron-making furnace, including a furnace body. Iron water outlets and miscellaneous material outlets are respectively arranged on both sides of the furnace body. An exhaust pipe is fixedly installed at the top of the furnace body, and the exhaust pipe is used to discharge the combustion waste gas inside the furnace body;

[0009] A feeding pipe is fixedly installed on the side of the furnace body, and one end extends above the furnace body for conveying coke into the furnace body. A rotating cylinder is sleeved outside the feeding pipe, and a heat exchange space is formed between the rotating cylinder and the feeding pipe. One end of the exhaust pipe is communicated with the inside of the heat exchange space. An overflow hole is arranged on the feeding pipe, and the overflow hole is used to guide the gas inside the heat exchange space to flow into the feeding pipe;

[0010] Wherein, a high-temperature resistant blower is provided at one end of the material conveying pipe away from the furnace body, and the high-temperature resistant blower is used to supply the gas inside the heat exchange space into the furnace body.

[0011] Furthermore, a support frame is provided on the side of the furnace body. An installation platform is fixedly installed above the support frame. The material conveying pipe is fixedly installed on the installation platform, and the high-temperature resistant blower is fixedly installed on the installation platform. One end of the high-temperature resistant blower is communicated with the inside of the heat exchange space through a connecting pipe, and the other end of the high-temperature resistant blower is communicated with the inside of the furnace body through a conveying pipe.

[0012] Furthermore, it further includes an annular pipe. The annular pipe is fixedly installed on the outer side of the furnace body. The upper end of the annular pipe is communicated with the lower end of the conveying pipe. A plurality of hot air pipes are circularly distributed below the annular pipe, and the plurality of hot air pipes respectively supply high-temperature gas into the furnace body from all around the furnace body.

[0013] Furthermore, at least a pair of spiral pipes are fixedly installed on the outer wall of the material conveying pipe. The side of the spiral pipe facing the inner wall of the rotating cylinder is in contact with the rotating cylinder. The spiral pipe is spirally wound around the outer side of the material conveying pipe. A spiral channel for the hot air flow to pass through is formed between each pair of spiral pipes. One end of the exhaust pipe extends to the spiral channel and is communicated with the inside of the spiral channel.

[0014] Furthermore, the inside of the spiral pipe is hollow. An intake blower is fixedly installed on the installation platform. An oxygen pipe is provided at the air outlet of the intake blower. The other end of the oxygen pipe extends from the side of the rotating cylinder to the space between the rotating cylinder and the material conveying pipe and is respectively communicated with the inside of each spiral pipe. The oxygen pipe is used to supply oxygen into the spiral pipe.

[0015] Furthermore, a gear is fixedly installed on the outer side of the rotating cylinder. A rotating motor is fixedly installed on the installation platform. The rotating motor is in transmission connection with the gear, and the rotating motor is used to drive the gear and the rotating cylinder to rotate.

[0016] Furthermore, a connecting disk is fixedly installed on the outer side of the material conveying pipe. The connecting disk is located on the side of the spiral pipe away from the furnace body. A circulation through-hole for the hot air flow to pass through is provided on the connecting disk. A rotating disk for adjusting the gas flow rate at the circulation through-hole is fixedly installed on the inner wall of the rotating cylinder. A limiting through-hole is provided on the rotating disk, and the limiting through-hole is smaller than the circulation through-hole.

[0017] Furthermore, a rotating shaft is rotatably installed inside the material conveying pipe. Spiral blades are fixedly installed on the outer side of the rotating shaft. A driving motor for driving the rotating shaft to rotate is provided on the installation platform. A feeding box is provided at one end of the material conveying pipe away from the furnace body, and the rotating shaft and the spiral blades both pass through the feeding box.

[0018] Beneficial effects

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known public technology:

[0020] 1. In the present invention, a rotating cylinder is sleeved outside the material conveying pipe, and a heat exchange space is formed between the rotating cylinder and the material conveying pipe. After the exhaust pipe extracts high-temperature gas from the inside of the furnace body, it is introduced into the heat exchange space, which can heat the material conveying pipe, and then preheat the coke located inside the material conveying pipe, avoiding too large a temperature difference between the coke and the inside of the furnace body and affecting the constancy of the temperature inside the furnace body.

[0021] 2. In the present invention, a pair of spiral pipes are arranged outside the material conveying pipe. When high-temperature gas is supplied into the heat exchange space, the high-temperature gas directly enters between the two spiral pipes, enabling the high-temperature gas to conduct heat exchange with the outer wall of the spiral pipe and the outer wall of the material conveying pipe simultaneously. The spiral pipes are spirally distributed outside the material conveying pipe, which can increase the contact area between the high-temperature gas and the spiral pipes, increase the heat exchange efficiency, and more efficiently heat the coke inside the material conveying pipe to a smaller temperature difference from the temperature inside the furnace body, making the temperature inside the furnace body more constant.

[0022] 3. In the present invention, the inside of the spiral pipe is set to be vacuum, and an intake blower is used to supply it into the spiral pipe. During the heating process of the spiral pipe, the oxygen inside the spiral pipe will be heated, which can preheat the oxygen supplied into the furnace body in advance, reduce the temperature difference between the oxygen supplied from the outside and the inside of the furnace body, and avoid large changes in the local temperature inside the furnace body during the supply of oxygen, thus maintaining the constancy of the temperature inside the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a side view of the furnace body of the present invention in a cut-open state;

[0026] Figure 3 It is a schematic diagram of the installation structure on the installation platform of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal installation structure of the rotating cylinder of the present invention;

[0028] Figure 5 This is an exploded view of the rotating cylinder and the material conveying pipe of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of the connecting disk and the rotating disk of the present invention;

[0030] Figure 7 This is an exploded view of the rotating cylinder, the rotating shaft and the material conveying pipe of the present invention.

[0031] The reference numerals in the figure respectively represent:

[0032] 1. Furnace body; 11. Exhaust pipe; 12. Molten iron outlet; 13. Miscellaneous material outlet; 14. Hot air pipe; 2. Material conveying pipe; 201. Air overflow hole; 21. Feeding box; 22. Driving motor; 23. Spiral pipe; 24. Rotating shaft; 25. Spiral blade; 26. Connecting disk; 2601. Circulation through hole;

[0033] 3. Rotating cylinder; 31. Gear; 32. Rotating disk; 3201. Limiting through hole; 4. Installation platform; 41. Intake blower; 411. Oxygen pipe; 42. Rotating motor; 43. High-temperature resistant blower; 431. Connecting pipe; 432. Delivery pipe; 5. Annular pipe; 6. Support frame. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] The present invention will be further described below in conjunction with the embodiments.

[0036] When a thermal energy circulating iron smelting furnace is in use, for the purpose of continuously burning inside the iron smelting furnace, coke is usually added to the inside of the iron smelting furnace multiple times during the iron smelting process.

[0037] Therefore, an embodiment of the present invention provides a thermal energy circulating iron smelting furnace, the purpose of which is at least to preheat the coke inside the material conveying pipe 2 during the conveying process by heating the outer wall of the material conveying pipe 2, so as to reduce the temperature difference between the coke and the inside of the furnace body 1 and more conveniently maintain the constancy of the temperature inside the furnace body 1.

[0038] Embodiment: A thermal energy circulating iron smelting furnace, as Figure 1 - Figure 2As shown, it includes a furnace body 1. Molten iron outlets 12 and miscellaneous material outlets 13 are respectively arranged on both sides of the furnace body 1. An exhaust pipe 11 is fixedly installed at the top of the furnace body 1, and the exhaust pipe 11 is used to discharge the combustion waste gas inside the furnace body 1.

[0039] A feeding pipe 2 is fixedly installed on the side of the furnace body 1, and one end extends above the furnace body 1 for conveying coke into the furnace body 1. A rotating cylinder 3 is sleeved outside the feeding pipe 2, and a heat exchange space is formed between the rotating cylinder 3 and the feeding pipe 2. One end of the exhaust pipe 11 is communicated with the inside of the heat exchange space. An overflow hole 201 is arranged on the feeding pipe 2, and the overflow hole 201 is used to guide the gas inside the heat exchange space into the feeding pipe 2.

[0040] Among them, a high-temperature resistant blower 43 is arranged at one end of the feeding pipe 2 away from the furnace body 1, and the high-temperature resistant blower 43 is used to supply the gas inside the heat exchange space into the furnace body 1.

[0041] In the present invention, by sleeving a rotating cylinder 3 outside the feeding pipe 2 to form a heat exchange space between the rotating cylinder 3 and the feeding pipe 2, after the exhaust pipe 11 extracts high-temperature air flow from the inside of the furnace body 1 and introduces it into the heat exchange space, the feeding pipe 2 can be heated, and then the coke located inside the feeding pipe 2 can be preheated, avoiding too large a temperature difference between the coke and the inside of the furnace body 1 and affecting the constancy of the temperature inside the furnace body 1.

[0042] It should be noted that the exhaust pipe 11 is communicated with the inside of the heat exchange space from the side of the feeding pipe 2 close to the furnace body 1, which can minimize the temperature difference between the coke about to enter the furnace body 1 and the inside of the furnace body, and can further maintain the constancy of the temperature inside the furnace body. An overflow hole 201 is arranged at the top of the feeding pipe 2. When the air pressure between the rotating cylinder 3 and the feeding pipe 2 is too high, it can enter the feeding pipe 2 through the overflow hole 201. The high-temperature air flow entering the feeding pipe 2 can also directly contact the coke and take away the volatile moisture on the coke.

[0043] Furthermore, as Figure 1 、 Figure 2 shown, a support frame 6 is arranged on the side of the furnace body 1. An installation platform 4 is fixedly installed above the support frame 6. The feeding pipe 2 is fixedly installed on the installation platform 4. The high-temperature resistant blower 43 is fixedly installed on the installation platform 4. One end of the high-temperature resistant blower 43 is communicated with the inside of the heat exchange space through a connecting pipe 431, and the other end of the high-temperature resistant blower 43 is communicated with the inside of the furnace body 1 through a conveying pipe 432.

[0044] Among them, the high-temperature resistant blower 43 can extract and supply the high-temperature gas inside the heat exchange space into the furnace body 1, enabling the high-temperature gas to be recycled.

[0045] Further, as shown in Figure 1 and Figure 2 , it further includes an annular pipe 5. The annular pipe 5 is fixedly installed on the outer side of the furnace body 1. The upper end of the annular pipe 5 is communicated with the lower end of the conveying pipe 432. A plurality of hot air pipes 14 are circularly distributed below the annular pipe 5. The plurality of hot air pipes 14 respectively supply high-temperature gas into the furnace body 1 from all around the furnace body 1.

[0046] Among them, by setting the annular pipe 5 and arranging a plurality of hot air pipes 14 in a ring shape below the annular pipe 5, after the high-temperature air is supplied into the interior of the annular pipe 5, it will enter the interior of the furnace body 1 from all around the furnace body 1 along the plurality of hot air pipes 14, which can make the oxygen and high-temperature gas entering the interior of the furnace body 1 more uniform, and can make the fuel inside the furnace body 1 burn more evenly.

[0047] Further, as shown in Figure 4 and Figure 5 , at least a pair of spiral pipes 23 are fixedly installed on the outer wall of the feeding pipe 2. The side of the spiral pipe 23 facing the inner wall of the rotating cylinder 3 is in contact with the rotating cylinder 3. The spiral pipe 23 is spirally wound around the outer side of the feeding pipe 2. A spiral channel for the hot air flow to pass through is formed between each pair of spiral pipes 23. One end of the exhaust pipe 11 extends to the spiral channel and is communicated with the inside of the spiral channel.

[0048] Among them, by arranging a pair of spiral pipes 23 on the outer side of the feeding pipe 2, when the high-temperature gas is supplied into the heat exchange space, the high-temperature gas directly enters between the two spiral pipes 23, so that the high-temperature gas can simultaneously perform heat exchange with the outer wall of the spiral pipe 23 and the outer wall of the feeding pipe 2. The spiral pipes 23 are spirally distributed on the outer side of the feeding pipe 2, which can increase the contact area between the high-temperature gas and the spiral pipes 23, increase the heat exchange efficiency, and more efficiently heat the coke inside the feeding pipe 2 to a smaller temperature difference from the temperature inside the furnace body, making the temperature inside the furnace body 1 more constant.

[0049] Further, as shown in Figure 4 and Figure 5 , the inside of the spiral pipe 23 is hollow. An intake blower 41 is fixedly installed on the installation platform 4. An oxygen pipe 411 is arranged at the air outlet of the intake blower 41. The other end of the oxygen pipe 411 extends from the side of the rotating cylinder 3 to the space between the rotating cylinder 3 and the feeding pipe 2 and is respectively communicated with the inside of each spiral pipe 23. The oxygen pipe 411 is used to supply oxygen into the spiral pipe 23.

[0050] Among them, by setting the inside of the spiral pipe 23 to be vacuum and using the intake blower 41 to supply it into the inside of the spiral pipe 23, during the process of heating the spiral pipe 23, the oxygen inside the spiral pipe 23 will be heated, and the oxygen supplied into the furnace body 1 can be preheated in advance, the temperature difference between the externally supplied oxygen and the inside of the furnace body 1 can be reduced, the situation that a large change in the local temperature inside the furnace body 1 is caused during the process of supplying oxygen can be avoided, and the temperature inside the furnace body 1 can be maintained constant.

[0051] Further, as Figure 4 shown, a gear 31 is fixedly installed on the outer side of the rotating cylinder 3, a rotating motor 42 is fixedly installed on the installation platform 4, the rotating motor 42 is in transmission connection with the gear 31, and the rotating motor 42 is used to drive the gear 31 and the rotating cylinder 3 to rotate.

[0052] Among them, by arranging the rotating motor 42 and the gear 31 on the outer side of the rotating cylinder 3, when it is necessary to clean the inside of the rotating cylinder 3, the part of the spiral pipe 23 that fits against the inner wall of the rotating cylinder 3 will scrape off the combustion soot adhering to the inner wall of the rotating cylinder 3, and the cleaning of the inside of the rotating cylinder 3 can be realized; in the actual use process, a dust discharge window that can be opened is also arranged on the outer side of the rotating cylinder 3, and the soot cleaned during the cleaning of the rotating cylinder 3 can be conveniently discharged from the rotating cylinder 3.

[0053] Further, as Figure 5 、 Figure 6 shown, a connection disk 26 is fixedly installed on the outer side of the feeding pipe 2, the connection disk 26 is located on the side of the spiral pipe 23 away from the furnace body 1, a circulation through hole 2601 for the hot air flow to pass through is arranged on the connection disk 26, a rotating disk 32 for adjusting the gas flow rate at the circulation through hole 2601 is fixedly installed on the inner wall of the rotating cylinder 3, and a limiting through hole 3201 is arranged on the rotating disk 32, and the limiting through hole 3201 is smaller than the circulation through hole 2601.

[0054] Among them, by arranging the connection disk 26 and the rotating disk 32, during the heat conduction process, by driving the rotation of the rotating cylinder 3, the rotating disk 32 can be made to block the outside of the circulation through hole 2601 on the connection disk 26, so that the ratio of the high-temperature gas passing through the circulation through hole 2601 is smaller, and the excess high-temperature gas can enter the inside of the feeding pipe 2 from the overflow hole 201 on the feeding pipe 2 to heat the coke located inside the feeding pipe 2, and the mixing ratio of the high-temperature gas and oxygen can be conveniently controlled according to the needs of the furnace body combustion, meeting the furnace body combustion needs in different states (for example, during the ignition process, a large amount of oxygen supply is required, and at this time, it is necessary to reduce the supply of high-temperature gas and increase the supply of oxygen);

[0055] Further, as Figure 7As shown, a rotating shaft 24 is rotatably installed inside the material conveying pipe 2. A spiral blade 25 is fixedly installed on the outer side of the rotating shaft 24. A driving motor 22 for driving the rotating shaft 24 to rotate is arranged on the installation platform 4. One end of the material conveying pipe 2 away from the furnace body 1 is provided with a feeding box 21. The rotating shaft 24 and the spiral blade 25 both pass through the feeding box 21.

[0056] Working principle: During use, the high-temperature gas at the top of the furnace body 1 enters the spiral channel between the two spiral pipes 23 inside the heat exchange space along the exhaust pipe 11. The high-temperature air directly contacts the outer wall of the spiral pipe 23 and the material conveying pipe 2, and heat exchange occurs, preheating the normal-temperature oxygen inside the spiral pipe 23 and the normal-temperature coke inside the material conveying pipe 2. It can heat the oxygen and coke about to enter the furnace body 1 to a range close to the temperature inside the furnace body 1, avoid excessive local temperature difference changes inside the furnace body 1 during the addition of oxygen or coke, and maintain a constant temperature inside the furnace body 1.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal energy cycle iron smelting furnace, characterized in that, Comprising: A furnace body (1), with a molten iron outlet (12) and a miscellaneous material outlet (13) respectively arranged on both sides of the furnace body (1). An exhaust pipe (11) is fixedly installed at the top of the furnace body (1), and the exhaust pipe (11) is used to discharge the combustion exhaust gas inside the furnace body (1); A feeding pipe (2), fixedly installed on the side of the furnace body (1), with one end extending above the furnace body (1) for conveying coke into the interior of the furnace body (1). A rotating cylinder (3) is sleeved outside the feeding pipe (2), and a heat exchange space is formed between the rotating cylinder (3) and the feeding pipe (2). One end of the exhaust pipe (11) is communicated with the interior of the heat exchange space. An overflow air hole (201) is arranged on the feeding pipe (2), and the overflow air hole (201) is used to guide the gas inside the heat exchange space into the feeding pipe (2); One end of the feeding pipe (2) far from the furnace body (1) is provided with a high-temperature resistant blower (43), and the high-temperature resistant blower (43) is used to supply the gas inside the heat exchange space into the interior of the furnace body (1); A support frame (6) is arranged on the side of the furnace body (1), and an installation platform (4) is fixedly installed above the support frame (6); It further includes an annular pipe (5), which is fixedly installed outside the furnace body (1). The upper end of the annular pipe (5) is communicated with the lower end of a conveying pipe (432). A plurality of hot air pipes (14) are circularly distributed below the annular pipe (5), and the plurality of hot air pipes (14) respectively supply high-temperature gas into the interior of the furnace body (1) from all around the furnace body (1); At least one pair of spiral pipes (23) are fixedly installed on the outer wall of the feeding pipe (2). The side of the spiral pipe (23) facing the inner wall of the rotating cylinder (3) is in contact with the rotating cylinder (3). The spiral pipe (23) is spirally wound outside the feeding pipe (2). A spiral channel for the hot air flow to pass through is formed between each pair of spiral pipes (23). One end of the exhaust pipe (11) extends to the spiral channel and is communicated with the interior of the spiral channel; The interior of the spiral pipe (23) is hollow. An intake blower (41) is fixedly installed on the installation platform (4). An oxygen pipe (411) is arranged at the air outlet of the intake blower (41). The other end of the oxygen pipe (411) extends from the side of the rotating cylinder (3) between the rotating cylinder (3) and the feeding pipe (2) and is respectively communicated with the interior of each spiral pipe (23). The oxygen pipe (411) is used to supply oxygen into the interior of the spiral pipe (23); A connection disk (26) is fixedly installed on the outside of the feeding pipe (2). The connection disk (26) is located on the side of the spiral pipe (23) far from the furnace body (1). A circulation through hole (2601) for the hot air flow to pass through is arranged on the connection disk (26). A rotating disk (32) for adjusting the gas flow rate at the circulation through hole (2601) is fixedly installed on the inner wall of the rotating cylinder (3). A limiting through hole (3201) is arranged on the rotating disk (32), and the limiting through hole (3201) is smaller than the circulation through hole (2601).

2. The thermal energy cycle iron smelting furnace according to claim 1, characterized in that, The feeding pipe (2) is fixedly installed on the installation platform (4), the high-temperature resistant blower (43) is fixedly installed on the installation platform (4), one end of the high-temperature resistant blower (43) is internally communicated with the heat exchange space through a connecting pipe (431), and the other end of the high-temperature resistant blower (43) is internally communicated with the furnace body (1) through a conveying pipe (432).

3. The thermal energy cycle iron smelting furnace according to claim 2, characterized in that, A gear (31) is fixedly installed on the outer side of the rotating cylinder (3), a rotating motor (42) is fixedly installed on the installation platform (4), the rotating motor (42) is in transmission connection with the gear (31), and the rotating motor (42) is used for driving the gear (31) and the rotating cylinder (3) to rotate.

4. The thermal energy cycle iron smelting furnace according to claim 3, characterized in that, A rotating shaft (24) is rotatably installed inside the feeding pipe (2), a spiral blade (25) is fixedly installed on the outer side of the rotating shaft (24), a driving motor (22) for driving the rotating shaft (24) to rotate is arranged on the installation platform (4), a feeding box (21) is arranged at one end of the feeding pipe (2) away from the furnace body (1), and both the rotating shaft (24) and the spiral blade (25) pass through the feeding box (21).

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