A rotary kiln heated by a high-pressure steam circuit
By adopting a high-pressure steam circuit heating design in the rotary furnace, the problems of uneven heating and high energy consumption of traditional rotary furnaces are solved, the reaction quality of materials is improved, and environmental pollution is reduced.
Patent Information
- Application Number
- CN202510172600.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-04-04
AI Technical Summary
Traditional rotary furnaces have problems in uneven heating, high energy consumption, environmental pollution, etc., especially when dealing with materials with reaction temperatures of about 300°C and long reaction time, it is difficult to ensure the reaction quality of the materials.
The rotary furnace design adopts a high-pressure steam loop heating. By setting the first and second pipelines for high-temperature steam circulation inside and outside the furnace body, uniform heating of the material is achieved, and residual heat is collected by a steam generation mechanism for reuse.
It improves the reaction quality of materials, reduces energy consumption, reduces heat emissions, and reduces environmental pollution.
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Figure CN119755964A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of rotary kiln equipment, and in particular relates to a rotary kiln heated by a high-pressure steam loop. Background Art
[0002] Traditional heating rotary kilns are widely used in many industrial production fields. They use energized silicon carbide heating rods to heat the furnace body, realizing various heat treatment processes such as sintering, calcining, drying, and reduction. However, for some materials with special response requirements, such as materials with a reaction temperature of about 300°C and a long reaction time, traditional heating rotary kilns have the following problems:
[0003] 1. Uneven distribution of heat field: The heating source is located outside the cylinder, which causes uneven heating of the material. The material near the center area is not heated enough, affecting the reaction quality of the material.
[0004] 2. High energy consumption and low efficiency: The energy consumption of the electrified silicon carbide heating rod is high, resulting in serious power consumption of the equipment and high production costs.
[0005] 3. Impact on the ecological environment: Traditional heating furnaces are usually equipped with cooling furnaces, and the cooling water used in the cooling furnaces will generate a large amount of waste heat that is difficult to use. This waste heat is discharged into the air, which not only aggravates the waste of energy, but also causes a greenhouse effect, affects the ecological environment, and is not conducive to energy conservation and environmental protection.
[0006] Therefore, in view of the above technical problems, it is necessary to provide a rotary kiln heated by a high-pressure steam circuit.
[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention
[0008] The purpose of the present invention is to provide a rotary kiln heated by a high-pressure steam circuit, which can solve the problems of uneven heating of materials and difficulty in ensuring reaction quality in traditional rotary kilns, thereby improving the reaction quality of materials. In addition, the waste heat after heating the materials can be converted into usable energy again, which not only reduces energy consumption, but also effectively reduces heat emissions and alleviates pollution to the environment.
[0009] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a rotary kiln heated by a high-pressure steam circuit, comprising a furnace body and a supporting frame, wherein the furnace body is installed on the supporting frame, and a first furnace door and a second furnace door are provided on the furnace body. The rotary kiln heated by a high-pressure steam circuit also includes a heating mechanism, a steam generating mechanism and a heat control mechanism, wherein the heating mechanism includes a first pipeline and a second pipeline, high-temperature steam flows through the first pipeline and the second pipeline, the second pipeline is fixedly connected to the outer wall of the furnace body, and the first pipeline is located inside the furnace body; the steam generating mechanism is used to provide heat to the first pipeline and the second pipeline and collect residual heat in the first pipeline and the second pipeline; the heat control mechanism is used to distribute the steam in the steam generating mechanism.
[0010] In one or more embodiments of the present invention, there are multiple second pipelines, and the multiple second pipelines are evenly distributed on the furnace body. The two pipe openings of the second pipeline are fixedly connected with docking flanges, and the two docking flanges on the second pipeline are respectively connected to the steam generating mechanism and the heat control mechanism.
[0011] In one or more embodiments of the present invention, the length of the second pipeline is 1100-1300 mm, the number of the second pipelines is 10-14, and a temperature detector matching the second pipeline is installed on the furnace body.
[0012] In one or more embodiments of the present invention, an annular retaining frame is provided in the furnace body, an installation groove matching the first pipeline is opened on the annular retaining frame, the first pipeline is clamped in the installation groove, a baffle for fixing the first pipeline is installed on the annular retaining frame, and the two end pipe openings of the first pipeline pass through the second furnace door.
[0013] In one or more embodiments of the present invention, a furnace neck is fixedly connected to the first furnace door and the second furnace door, and the first furnace door and the second furnace door are rotatably connected to the furnace body.
[0014] In one or more embodiments of the present invention, a plurality of brackets are integrally formed on the annular retaining frame, a material passing space is formed between a pair of adjacent brackets, and rollers are rotatably connected to the brackets, and the rollers roll on the inner wall of the furnace body.
[0015] In one or more embodiments of the present invention, a motor is mounted on the support frame, a gear is fixedly connected to the motor, an external tooth slewing bearing meshing with the gear is fixedly connected to the outer wall of the furnace body, a pair of furnace necks are integrally formed on the furnace body, and a rotating ring is mounted on the furnace necks.
[0016] In one or more embodiments of the present invention, a plurality of hydraulic legs are fixedly connected to the support frame, a support block is fixedly connected to the hydraulic leg, and a rotating table is rotatably connected to the support block.
[0017] In one or more embodiments of the present invention, a slider is fixedly connected to the rotating table, a rolling frame is fixedly connected to the slider, and the furnace body is rotatably connected to the rolling frame.
[0018] In one or more embodiments of the present invention, the steam generating mechanism includes a steam box, a water storage chamber and a pressure chamber are provided in the steam box, the water storage chamber is filled with water and a plurality of third pipes, the third pipes are provided with fins, a collector and a pressure pump are installed in the pressure chamber, a fourth pipe is installed on the pressure pump, and the fourth pipe is connected to the heat control mechanism.
[0019] Compared with the prior art, the rotary kiln of the present invention using a high-pressure steam circuit for heating can solve the problems of uneven heating of materials and difficulty in ensuring reaction quality in traditional rotary kilns, thereby improving the reaction quality of materials. In addition, the waste heat after heating the materials can be converted into usable energy again, which not only reduces energy consumption, but also effectively reduces heat emissions and alleviates pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments recorded in the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 A front view of a rotary kiln heated by a high-pressure steam circuit according to an embodiment of the present invention;
[0022] Figure 2 A cross-sectional view of a rotary kiln heated by a high-pressure steam circuit according to an embodiment of the present invention Figure 1 ;
[0023] Figure 3 for Figure 2 The structural diagram at A in the middle;
[0024] Figure 4 It is a schematic structural diagram of a first steam pipe of a rotary kiln heated by a high-pressure steam circuit in one embodiment of the present invention;
[0025] Figure 5 It is a structural schematic diagram of an annular retainer of a rotary kiln heated by a high-pressure steam circuit in one embodiment of the present invention;
[0026] Figure 6 It is a schematic diagram of the structure of a second steam pipe of a rotary kiln heated by a high-pressure steam circuit in one embodiment of the present invention;
[0027] Figure 7 A cross-sectional view of a steam box of a rotary kiln heated by a high-pressure steam circuit according to an embodiment of the present invention;
[0028] Figure 8 A cross-sectional view of a rotary kiln heated by a high-pressure steam circuit according to an embodiment of the present invention Figure 2 ;
[0029] Fig. 9 for Figure 8 Schematic diagram of the structure at B in the middle;
[0030] Fig.10 It is a schematic structural diagram of a hydraulic support leg of a rotary kiln heated by a high-pressure steam circuit in one embodiment of the present invention.
[0031] Description of main reference numerals:
[0032] 1. furnace body; 11. first furnace door; 12. second furnace door; 13. furnace neck; 131. rotating ring; 14. first pipeline; 15. annular retainer; 151. bracket; 152. roller; 153. mounting groove; 154. baffle; 16. second pipeline; 161. docking flange; 17. temperature detector; 2. bearing frame; 21. hydraulic support leg; 211. supporting block; 212. rotating table; 22. slider; 23. rolling frame; 24. cylinder; 25. pulley; 251. connecting block; 3. motor; 31. gear; 32. external gear slewing bearing; 4. steam box; 41. water storage chamber; 411. third pipeline; 4111. fin; 42. pressurizing chamber; 421. collector; 422. pressurizing pump; 4221. fourth pipeline. DETAILED DESCRIPTION
[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.
[0034] like Figures 1 to 3As shown, a rotary kiln heated by a high-pressure steam circuit in one embodiment of the present invention comprises a furnace body 1 and a carrier frame 2, the furnace body 1 is mounted on the carrier frame 2, and a first furnace door 11 and a second furnace door 12 are provided on the furnace body 1. The rotary kiln heated by a high-pressure steam circuit also comprises a heating mechanism, a steam generating mechanism and a heat control mechanism. The heating mechanism comprises a first pipeline 14 and a second pipeline 16, high-temperature steam flows in the first pipeline 14 and the second pipeline 16, the second pipeline 16 is welded on the outer wall of the furnace body 1 and wound on the furnace body 1, and the first pipeline 14 is located inside the furnace body 1. The steam generating mechanism is used to provide heat to the first pipeline 14 and the second pipeline 16 and collect residual heat in the first pipeline 14 and the second pipeline 16, and the heat control mechanism is used to distribute the steam in the steam generating mechanism.
[0035] Specifically, when heating the material in the furnace body 1, the high-temperature steam generated by the steam generating mechanism is passed into the first pipeline 14 and the second pipeline 16 to heat the material in the furnace body 1. Because the first pipeline 14 and the second pipeline 16 are respectively located on the inner and outer walls of the furnace body 1, the material can be heated both inside and outside the cylinder to ensure that the material is heated evenly and fully.
[0036] In addition, the residual heat after the first pipeline 14 and the second pipeline 16 heat the material enters the steam generating mechanism and is used to generate steam again, thereby reducing energy loss and energy consumption.
[0037] like Figures 1 to 7 As shown, the steam generating mechanism includes a steam box 4, in which a water storage chamber 41 and a pressure chamber 42 are provided, the water storage chamber 41 is filled with water and a plurality of third pipes 411, and the third pipes 411 are provided with fins 4111. A collector 421 and a pressure pump 422 are installed in the pressure chamber 42, and a fourth pipe 4221 is installed on the pressure pump 422, and the fourth pipe 4221 is connected to the heat control mechanism.
[0038] Specifically, the steam box 4 can heat the water in the water storage chamber 41. The steam generated by the water is collected by the collector 421 and the water in the steam is filtered out before entering the pressure pump 422. The pressure pump 422 pressurizes the steam and transports it to the heat control mechanism through the fourth pipeline 4221. The heat control mechanism transports steam to the first pipeline 14 and the second pipeline 16 according to the temperature in the furnace body 1.
[0039] Furthermore, there are multiple second pipelines 16, which are evenly distributed on the outer wall of the furnace body 1, and docking flanges 161 are welded to both pipe openings of the second pipeline 16. The two docking flanges 161 on the second pipeline 16 are respectively connected to the steam generating mechanism and the heat control mechanism.
[0040] Specifically, the generated steam is transported to one of the docking flanges 161 on the second pipeline 16 through the heat control mechanism. After the steam circulates in the second pipeline 16, it flows from the other docking flange 161 to the third pipeline 411. The steam flowing into the third pipeline 411 continues to heat the water in the water storage chamber 41 through the heat exchange of the fins 4111, so that it generates steam. After the heat exchange, the steam energy in the second pipeline 16 is greatly consumed, and the temperature will also become lower. Discharging it into the air can reduce the impact on the environment. The above method can reduce the emission of heat and protect the ecological environment.
[0041] In addition, after the material reaction is completed, the material in the furnace body 1 needs to be cooled. When cooling the material in the furnace body 1, water is passed into the first pipeline 14 and the second pipeline 16 to cool the material. The water in the first pipeline 14 and the second pipeline 16 absorbs the heat of the material and becomes hot. The heated water in the first pipeline 14 and the second pipeline 16 flows into the third pipeline 411, and the water in the water storage chamber 41 is heated after heat exchange through the fins 4111, so that the generated water in the water storage chamber 41 becomes hot. In this way, the waste heat generated during cooling can be utilized, which not only reduces heat emission, saves energy and protects the environment, but also can reuse waste heat and reduce production costs.
[0042] At the same time, the water in the first pipeline 14 and the second pipeline 16 can also be put into the water storage chamber 41 to replenish the water in the water storage chamber 41.
[0043] It is worth noting that, since the second pipeline 16 is spirally wound on the furnace body 1 , a large air pressure is required when the steam flows in the second pipeline 16 , and the requirements on the pipe material of the second pipeline 16 are relatively strict.
[0044] Preferably, the number of the second pipelines 16 is 12, and the length of the second pipeline 16 is 1200 mm. Specifically, the second pipeline 16 is evenly wound on the furnace body 1. Because the length of the second pipeline 16 is 1200 mm, the steam flowing through the second pipeline 16 does not require a large pressure, and the material requirements for the second pipeline 16 are not high, which can save the cost of making the second pipeline 16. The relatively low air pressure in the second pipeline 16 can also improve the safety factor of the second pipeline 16 when it is used.
[0045] Furthermore, in order to monitor the temperature in each temperature zone in real time, a temperature detector 17 matching the second pipeline 16 is installed on the furnace body 1, and the value detected by the temperature detector 17 is transmitted to the heat control mechanism in real time. Specifically, the second pipeline 16 divides the furnace body 1 into 12 independent temperature zones, and the heat control mechanism introduces corresponding high-temperature steam into different second pipelines 16 according to the values detected by the temperature detector 17, which can not only save the use of high-temperature steam, but also achieve the effect of accurate temperature control in different temperature zones.
[0046] Similarly, the two end openings of the first pipeline 14 are connected to the steam generating mechanism and the heat control mechanism respectively. Specifically, the air inlet of the first pipeline 14 is connected to the heat control mechanism, and the air outlet of the first pipeline 14 is connected to the third pipeline 411. The heat control mechanism transports high-temperature steam to the first pipeline 14, and the first pipeline 14 heats the material near the center of the furnace body 1. The steam with residual heat flows from the first pipeline 14 into the third pipeline 411, and heats the water in the water storage chamber 41 through the heat exchange of the fins 4111, thereby reducing the energy consumed by the steam box 4 when heating the water in the water storage chamber 41. At the same time, the steam in the first pipeline 14 is discharged into the air after heat exchange, which can also reduce thermal pollution to the environment. The first pipeline 14 can also play the role of heating materials, protecting the environment, saving energy and reducing production costs.
[0047] like Figures 8 to 10 As shown, in order to prevent the material from adhering to the inner wall of the furnace body 1, a motor 3 is installed on the carrier 2, a gear 31 is welded to the motor 3, and an external gear slewing bearing 32 meshing with the gear 31 is welded to the outer wall of the furnace body 1. A pair of furnace necks 13 are integrally formed on the furnace body 1, a rotating ring 131 is installed on the furnace neck 13, and the first furnace door 11 and the second furnace door 12 are rotatably connected to the pair of furnace necks 13 respectively.
[0048] Specifically, when the material in the furnace body 1 is heated, the motor 3 is started, and the furnace body 1 is driven to rotate through the meshing transmission of the gear 31 and the external gear slewing bearing 32, so that the material in the furnace body 1 is continuously turned over in the furnace body 1, preventing the material from sticking to the inner wall of the furnace body 1, and at the same time enhancing the effect of uniform heating.
[0049] Furthermore, a plurality of hydraulic legs 21 are mounted on the support frame 2, a support block 211 is welded on the hydraulic legs 21, and a rotating platform 212 is rotatably connected to the support block 211. A slider 22 is welded on the rotating platform 212, a rolling frame 23 is welded on the slider 22, and the furnace body 1 is rotatably connected to the rolling frame 23.
[0050] Specifically, the rolling frame 23 can lift the furnace body 1 and make the furnace body 1 rotate on the supporting frame 2. When the material reaction is completed and needs to be discharged, the hydraulic support leg 21 is started, and the telescopic cylinder on the hydraulic support leg 21 is pushed upward. The length of the extension of multiple hydraulic support legs 21 gradually increases from the first furnace door 11 to the second furnace door 12, so that the furnace body 1 is in an inclined state. When the telescopic rod of the hydraulic support leg 21 is lifted upward, since the extension lengths of the telescopic rods of multiple hydraulic support legs 21 are different, the rotating table 212 connected to the support block 211 can always lift the slider 22. Open the first furnace door 11, start the motor 3 to rotate the furnace body 1, and speed up the discharge of the material in the furnace body 1.
[0051] Preferably, one end of the furnace body 1 close to the first furnace door 11 is tapered, so that all the materials in the furnace body 1 can be discharged.
[0052] like Figures 4 to 9 As shown, an annular retainer 15 is provided in the furnace body 1, and a mounting groove 153 matching the first pipeline 14 is provided on the annular retainer 15, and the first pipeline 14 is clamped in the mounting groove 153. A baffle 154 for fixing the first pipeline 14 is installed on the annular retainer 15, and the two end openings of the first pipeline 14 pass through the second furnace door 12. A plurality of brackets 151 are integrally formed on the annular retainer 15, and a material passing space is formed between a pair of adjacent brackets 151. A roller 152 is rotatably connected to the bracket 151, and the roller 152 rolls on the inner wall of the furnace body 1.
[0053] Specifically, because the first pipeline 14 is relatively long, when the furnace body 1 rotates, the material in the furnace body 1 continuously generates pressure on the first pipeline 14, and the annular retainer 15 can strengthen the strength of the first pipeline 14 to prevent the first pipeline 14 from being bent and damaged. When the furnace body 1 rotates, the second furnace door 12 and the first furnace door 11 are in a stationary state, and the first pipeline 14 fixed to the second furnace door 12 also does not rotate. At this time, the roller 152 on the annular retainer 15 rolls on the inner wall of the furnace body 1 to eliminate the stress between the first pipeline 14 and the second furnace door 12.
[0054] In addition, because the roller 152 is arranged on the bracket 151, there is a certain gap between the outer wall of the annular retainer 15 and the inner wall of the furnace body 1, and the roller 152 is extended outward through the bracket 151 to ensure that the retainer can contact the inner wall of the cylinder while leaving enough space for the material to pass through, thereby ensuring a uniform heating effect of the material. Furthermore, the rollers 152 are alternately installed on both sides of the bracket 151 to ensure uniform force.
[0055] like Figure 8 and Fig. 9 As shown, a pair of cylinders 24 are mounted on the carrier 2, a pulley 25 is welded on the telescopic rod of the cylinder 24, a connecting block 251 is integrally formed on the pulley 25, and one end of the pair of connecting blocks 251 away from the pulley 25 is respectively welded to the first furnace door 11 and the second furnace door 12. The slider 22 is slidably connected to the carrier 2.
[0056] Specifically, when adding materials into the furnace body 1, the reciprocating motion of the telescopic cylinder on the cylinder 24 can cause the furnace body 1 to shake, so that the materials in the furnace body 1 are leveled, preventing the materials in the furnace body 1 from piling up in one place, causing excessive pressure on the inner wall of the furnace body 1 to cause deformation and damage.
[0057] When in use, the steam box 4 heats the water in the water storage chamber 41 to generate steam, and the steam enters the collector 421. The collector 421 filters out the moisture in the steam and then passes it to the pressure pump 422. The steam is pressurized by the pressure pump 422 and passes from the fourth pipeline 4221 to the heat control mechanism. The heat control mechanism distributes the flow rate of the steam so that it passes into the first pipeline 14 and the second pipeline 16 to heat the material in the furnace body 1.
[0058] The steam in the first pipeline 14 and the second pipeline 16 flows back to the third pipeline 411 again, and the residual heat is injected into the water in the water storage chamber 41 through the heat exchange of the fins 4111, thereby reducing the energy consumption required by the steam box 4 to heat the water in the water storage chamber 41. At the same time, the temperature of the steam after heat exchange in the first pipeline 14 and the second pipeline 16 is reduced, and it is discharged into the atmosphere to reduce thermal pollution to the environment.
[0059] 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.
[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A rotary kiln heated by a high-pressure steam circuit, comprising a furnace body and a carrier frame, wherein the furnace body is mounted on the carrier frame, and a first furnace door and a second furnace door are provided on the furnace body, wherein: The rotary kiln heated by a high pressure steam loop also includes: A heating mechanism, the heating mechanism comprising a first pipeline and a second pipeline, high-temperature steam flows through the first pipeline and the second pipeline, the second pipeline is fixedly connected to the outer wall of the furnace body, and the first pipeline is located inside the furnace body; A steam generating mechanism, the steam generating mechanism being used to provide heat to the first pipeline and the second pipeline and to collect residual heat in the first pipeline and the second pipeline; A heat control mechanism is provided for distributing the steam in the steam generating mechanism.
2. A rotary kiln heated by a high pressure steam circuit according to claim 1, characterized in that: There are multiple second pipelines, which are evenly distributed on the furnace body. Two pipe openings of the second pipeline are fixedly connected with docking flanges. The two docking flanges on the second pipeline are respectively connected to the steam generating mechanism and the heat control mechanism.
3. A rotary kiln heated by a high pressure steam circuit according to claim 2, characterized in that: The length of the second pipeline is 1100-1300 mm, the number of the second pipelines is 10-14, and a temperature detector matching the second pipeline is installed on the furnace body.
4. A rotary kiln heated by a high pressure steam circuit according to claim 1, characterized in that: An annular retainer is provided in the furnace body, and a mounting groove matching the first pipeline is opened on the annular retainer. The first pipeline is clamped in the mounting groove, and a baffle for fixing the first pipeline is installed on the annular retainer. The two end pipe openings of the first pipeline pass through the second furnace door.
5. A rotary kiln heated by a high pressure steam circuit according to claim 4, characterized in that: The first furnace door and the second furnace door are both fixedly connected with a furnace neck, and the first furnace door and the second furnace door are rotatably connected to the furnace body.
6. A rotary kiln heated by a high pressure steam circuit according to claim 4, characterized in that: A plurality of brackets are integrally formed on the annular retaining frame, a material passing space is formed between a pair of adjacent brackets, and rollers are rotatably connected to the brackets, and the rollers roll on the inner wall of the furnace body.
7. A rotary kiln heated by a high pressure steam circuit according to claim 4, characterized in that: A motor is installed on the support frame, a gear is fixedly connected to the motor, an external gear slewing bearing meshing with the gear is fixedly connected to the outer wall of the furnace body, a pair of furnace necks are integrally formed on the furnace body, and a rotating ring is installed on the furnace necks.
8. The rotary kiln heated by high pressure steam circuit according to claim 1, characterized in that: A plurality of hydraulic legs are fixedly connected to the support frame, a supporting block is fixedly connected to the hydraulic legs, and a rotating table is rotatably connected to the supporting block.
9. A rotary kiln heated by a high pressure steam circuit according to claim 8, characterized in that: The rotating table is fixedly connected with a slider, the slider is fixedly connected with a rolling frame, and the furnace body is rotatably connected to the rolling frame.
10. The rotary kiln heated by high pressure steam circuit according to claim 1, characterized in that: The steam generating mechanism comprises a steam box, in which a water storage chamber and a pressure chamber are arranged, the water storage chamber is filled with water and a plurality of third pipes, the third pipes are provided with fins, a collector and a pressure pump are installed in the pressure chamber, a fourth pipe is installed on the pressure pump, and the fourth pipe is connected to the heat control mechanism.