Intelligent electric heating system for preparing potassium sulfate by Mannheim method

Abstract

The invention relates to the technical field of potassium sulfate preparation, and particularly discloses an intelligent electric heating system for preparing potassium sulfate by a Mannheim method, the intelligent electric heating system comprises an input conveyor belt, an output conveyor belt and a heating furnace body, the outer side of the heating furnace body is provided with a middle heat tracing source supply mechanism and an electromagnetic heating source supply assembly; a heat source is preferentially conducted to the position of the thin-wall junction heat-conducting fin to assist heat conduction of the temperature-conducting thin-wall surface, then the heat source is guided to the side face of an inner cavity of the multilateral air inlet chamber through the obtuse-angle flow guide page, and the heating reaction rate of potassium sulfate in the middle of the heating furnace body is increased through the temperature conduction effect generated by the multilateral air inlet chamber and the thin-wall junction heat-conducting fin. Meanwhile, when a heat source is continuously input, heat source airflow returning to the air inlet closing opening from the side face of the inner cavity of the multilateral air inlet chamber flows again to a narrow-diameter space formed between the air supply outer ring sleeve and the heating furnace body, and the preheating transition stability of the heating furnace body and the multilateral air inlet chamber during continuous heat tracing and temperature increasing is ensured; the adaptability of the potassium sulfate during continuous heating reaction is improved.

Description

Technical Field

[0001] The invention relates to the technical field of potassium sulfate preparation, in particular to an intelligent electric heating system for preparing potassium sulfate by the Mannheim process. Background Art

[0002] The potassium sulfate heating reaction mainly utilizes electromagnetic heating to heat the air, and then the hot air is transported to the Mannheim furnace. The hot air increases the reaction temperature of potassium sulfate, thereby increasing the amount of one-time heating feed. When potassium sulfate is placed inside the heating container of the electromagnetic heating device, it will settle to the bottom of the container under its own gravity. At this time, the potassium sulfate heated by the container wall is mainly concentrated on the side close to the container wall. Since the potassium sulfate reaction temperature requirement is relatively high, it needs to reach 400 to 600 degrees. In the case of uneven heat conduction surface, this treatment method often has a significantly lower heating rate for potassium sulfate located in the middle of the container than for potassium sulfate located on the side wall of the container, and is not ideal for treatment of continuous reaction operations. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an intelligent electric heating system for potassium sulfate produced by the Mannheim process. The technical solution adopted by the present invention to solve its technical problems is: an intelligent electric heating system for potassium sulfate produced by the Mannheim process, comprising an input conveyor belt, an output conveyor belt and a heating furnace body, an intermediate heat source supply mechanism and an electromagnetic heating source supply component are arranged on the outside of the heating furnace body, the intermediate heat source supply mechanism is arranged around the outside of the heating furnace body, the intermediate heat source supply mechanism is used to form a heat source in the middle position of the heating furnace body, the electromagnetic heating source supply component is used to heat the gas to the heating furnace body, the intermediate heat source supply mechanism and the electromagnetic heating source supply component are introduced separately, and an intermediate heat source storage component is arranged on the inside of the heating furnace body, and the intermediate heat source storage component is connected to the intermediate heat source supply mechanism. The intermediate heat source storage component includes a multilateral air inlet chamber, an air inlet opening, a thin-walled joint heat conductive sheet, an obtuse-angle guide page, an air inlet solenoid valve and a discharge and exhaust valve. The heating furnace body is provided with the multilateral air inlet chamber adjacent to the intermediate heat source supply mechanism. The number of the multilateral air inlet chambers is at least four. The air inlet opening is opened at one end of the multilateral air inlet chamber. The thin-walled joint heat conductive sheet is fixedly connected to the inner wall of the multilateral air inlet chamber. The air inlet opening and the thin-walled joint heat conductive sheet are symmetrically distributed. The obtuse-angle guide page is fixedly connected to the inner side of the multilateral air inlet chamber. The air inlet solenoid valve is arranged on the inner side of the intermediate heat source supply mechanism. The discharge and exhaust valve is fixedly connected between the intermediate heat source supply mechanism and the multilateral air inlet chamber. The air inlet solenoid valve is used to introduce the heat source into the inner side of the heating furnace body and the intermediate heat source supply mechanism. The discharge and exhaust valve is used to export the heat source after the temperature drops to the outer side of the intermediate heat source supply mechanism.

[0004] Preferably, the heating furnace body is provided with a temperature-conducting thin-wall surface, and the thin-wall joint heat-conducting plate is arranged on a side wall of the polygonal air inlet chamber close to the temperature-conducting thin-wall surface.

[0005] Preferably, the intermediate heating source supply mechanism includes an air supply outer ring sleeve and an air source isolation page, the air supply outer ring sleeve is fixedly connected to the outside of the heating furnace body, the air source isolation page is fixedly connected between the heating furnace body and the air supply outer ring sleeve, and the air source isolation page is used to isolate an independent cavity between the air supply outer ring sleeve and the heating furnace body.

[0006] Preferably, the electromagnetic heating source supply assembly includes an electromagnetic heat source delivery pipe, an inner cavity conducting pipe and a heating cavity conducting pipe, the input end of the electromagnetic heat source delivery pipe is connected to the external gas electromagnetic heating mechanism, the output end of the electromagnetic heat source delivery pipe is connected to the inner cavity of the heating furnace body through the inner cavity conducting pipe, the input end of the heating cavity conducting pipe is fixedly connected with the heating source delivery pipe, the input end of the heating source delivery pipe is connected to the external gas electromagnetic heating mechanism, and the output end of the heating cavity conducting pipe is fixedly connected to the gas supply outer ring sleeve.

[0007] Preferably, the air intake solenoid valve is fixedly connected to the air supply outer ring sleeve, and the air intake solenoid valve and the air inlet port are symmetrically distributed, the output end of the leakage and exhaust valve passes through the air supply outer ring sleeve and extends to the outside of the air supply outer ring sleeve, and the end of the leakage and exhaust valve located on the inner side of the multilateral air intake chamber is fixedly connected to a temperature controller.

[0008] Preferably, the heating furnace body is provided with an inner cavity exhaust valve, a material transfer bucket and a lid closing push mechanism, the inner cavity exhaust valve is fixedly connected to the heating furnace body, the lid closing push mechanism is installed at the feed end of the heating furnace body, and the material transfer bucket is fixedly connected to the transmission seat of the lid closing push mechanism.

[0009] Preferably, a loading shovel arm is provided between the input conveyor belt and the feeding end of the heating furnace body, and a unloading shovel arm is provided between the output conveyor belt and the discharging end of the heating furnace body.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the middle part of the heating furnace body is independently heated by the intermediate heat source supply mechanism, that is, the gas source is input into the inner cavity of the heating furnace body and the inner part of the gas supply outer ring sleeve by the electromagnetic heat source delivery pipe and the heat source delivery pipe respectively after electromagnetic heating, and the heat source entering from the inner side of the gas supply outer ring sleeve performs auxiliary heating reaction on the potassium sulfate in the middle part of the heating furnace body, that is, the heat source is input into the gas supply outer ring sleeve and then output through the air intake solenoid valve for boosting, and enters into the inner side of the multilateral air intake chamber through the air intake constriction, so that the heat source is preferentially conducted to the position of the thin-wall joint heat conducting plate to assist the heat conduction of the thin-wall surface, and then the heat source is guided to the side of the inner cavity of the multilateral air intake chamber by the obtuse angle guide leaf, ensuring the inner side of the multilateral air intake chamber The heating is uniform, and then temperature conduction is generated through the multilateral air inlet chamber and the thin-walled joint heat conductive plate, which improves the heating reaction rate of potassium sulfate in the middle position of the heating furnace body. At the same time, when the heat source is continuously input, the heat source airflow returned from the side of the inner cavity of the multilateral air inlet chamber to the air inlet port flows again to the narrow diameter space formed between the air supply outer ring sleeve and the heating furnace body, so that the middle position of the heating furnace body is heated by the heating temperature of the returning heat source airflow, and the heating environment temperature is kept stable at all times, ensuring the smoothness of the preheating transition of the heating furnace body and the multilateral air inlet chamber during continuous heating and temperature increase, so that the subsequent potassium sulfate can quickly reach the reaction temperature after being sent to the inside of the heating furnace body, thereby improving the adaptability of potassium sulfate during continuous heating reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 This is a structural composition diagram of an intelligent electric heating system for producing potassium sulfate using the Mannheim process of the present invention.

[0013] Figure 2 The present invention is a schematic structural diagram of a heating furnace body, an intermediate heat source supply mechanism and an electromagnetic heat source conveying pipe in an intelligent electric heating system for producing potassium sulfate by the Mannheim process.

[0014] Figure 3 The present invention is a cross-sectional view of a heating furnace body and an intermediate heat source supply mechanism in an intelligent electric heating system for producing potassium sulfate by the Mannheim process.

[0015] Figure 4 for Figure 2 Schematic diagram from another perspective.

[0016] In the figure: 1. input conveyor belt; 11. loading shovel arm; 2. output conveyor belt; 21. unloading shovel arm; 3. heating furnace body; 301. temperature-conducting thin wall surface; 31. inner cavity exhaust valve; 32. material transfer bucket; 33. cover-closing push mechanism; 4. intermediate heat source supply mechanism; 41. air supply outer ring sleeve; 42. air source isolation page; 5. electromagnetic heating source supply assembly; 51. electromagnetic heat source delivery pipe; 52. inner cavity conduction pipe; 53. heating cavity conduction pipe; 54. heat source delivery pipe; 6. intermediate heat source storage assembly; 61. multilateral air inlet chamber; 62. air inlet closure; 63. thin-walled joint heat conductive plate; 64. obtuse angle guide page; 65. air intake solenoid valve; 66. discharge exhaust valve; 661. temperature sensor controller. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] like Figure 1 - Figure 4 As shown, an intelligent electric heating system for preparing potassium sulfate by the Mannheim process of the present invention comprises an input conveyor belt 1, an output conveyor belt 2 and a heating furnace body 3. An intermediate heating source supply mechanism 4 and an electromagnetic heating source supply assembly 5 are arranged on the outer side of the heating furnace body 3. The intermediate heating source supply mechanism 4 is arranged around the outer side of the heating furnace body 3. The intermediate heating source supply mechanism 4 is used to form a heating source in the middle position of the heating furnace body 3. The electromagnetic heating source supply assembly 5 is used to introduce heating gas into the intermediate heating source supply mechanism 4 and the electromagnetic heating source supply assembly 5 to the heating furnace body 3. An intermediate heat source storage assembly 6 is arranged on the inner side of the heating furnace body 3, and the intermediate heat source storage assembly 6 is connected to the intermediate heating source supply mechanism 4.

[0019] In order to solve the problem that the existing Mannheim furnace is unevenly heated, which easily causes the potassium sulfate heating rate in the middle of the container to be lower than that in the side wall of the container, the present invention provides an intelligent electric heating system for potassium sulfate produced by the Mannheim process, which isolates the heating furnace body 3 from the heating cavity for auxiliary heating of the middle part by setting an intermediate heat source supply mechanism 4 and an intermediate heat source storage component 6, and independently inputs heat source to the inner side of the heating furnace body 3 and the inner side of the intermediate heat source supply mechanism 4 by the electromagnetic heating source supply component 5. Among them, the heat preservation and heat conduction structure inside the heating furnace body 3 is a prior art structure, and the present invention only improves the middle part of the heating shell of the heating furnace body 3, so its heat preservation and heat conduction principle will not be repeated in this embodiment.

[0020] The intermediate heat source storage component 6 includes a multilateral air inlet chamber 61, an air inlet closure 62, a thin-walled joint heat conductive sheet 63, an obtuse angle guide leaf 64, an air inlet solenoid valve 65, and a discharge exhaust valve 66. The heating furnace body 3 is adjacent to the intermediate heat source supply mechanism 4 and is provided with a multilateral air inlet chamber 61. The number of the multilateral air inlet chambers 61 is at least four. The air inlet closure 62 is opened at one end of the multilateral air inlet chamber 61. The thin-walled joint heat conductive sheet 63 is fixedly connected to the inner wall of the multilateral air inlet chamber 61. The air inlet closure 62 and the thin-walled joint heat conductive sheet 63 are fixedly connected to the inner wall of the multilateral air inlet chamber 61. The wall-jointed heat conducting plates 63 are symmetrically distributed, the obtuse-angle guide leaves 64 are fixedly connected to the inner side of the multilateral air inlet chamber 61, the air inlet solenoid valve 65 is arranged on the inner side of the intermediate heat source supply mechanism 4, the leakage exhaust valve 66 is fixedly connected between the intermediate heat source supply mechanism 4 and the multilateral air inlet chamber 61, the air inlet solenoid valve 65 is used to introduce the heat source into the inner side of the heating furnace body 3 and the intermediate heat source supply mechanism 4, and the leakage exhaust valve 66 is used to export the heat source after the temperature has dropped to the outer side of the intermediate heat source supply mechanism 4.

[0021] In an optional implementation of this embodiment, the heating furnace body 3 is provided with a temperature-conducting thin-wall surface 301 , and the thin-wall joint heat-conducting plate 63 is provided on one side wall of the polygonal air inlet chamber 61 close to the temperature-conducting thin-wall surface 301 .

[0022] In this embodiment, the thin-walled joint heat conducting sheet 63 is used for temperature conduction, so as to assist in increasing the heating temperature of the middle part of the heating furnace body 3. The specific principle is that after the heat source is input into the air supply outer ring sleeve 41, it is pressurized through the air intake solenoid valve 65 and output from the air intake port 62, and the heat source is input into the inner side of the multilateral air intake chamber 61 through the air intake port 62. Since the diameter of the air intake port 62 is small and the inner cavity area of ​​the multilateral air intake chamber 61 is large, the heat source can be prevented from entering the multilateral air intake chamber 61. After the edge air inlet chamber 61, it diffuses outward directly through the air inlet opening 62, so that the heat source is preferentially conducted to the thin-walled joint heat conductive plate 63 to assist the heat conduction of the temperature-conducting thin-walled surface 301, and then the obtuse-angle guide leaf 64 guides the heat source to the side of the inner cavity of the multilateral air inlet chamber 61 to ensure that the inner side of the multilateral air inlet chamber 61 is heated evenly. The temperature conduction effect is generated through the multilateral air inlet chamber 61 and the thin-walled joint heat conductive plate 63, thereby improving the heating reaction rate of potassium sulfate located in the middle position of the heating furnace body 3.

[0023] In the present embodiment, during the heating process, when the heat source is continuously input to the inner side of the multilateral air inlet chamber 61 through the air inlet solenoid valve 65, the heat source airflow guided to the inner cavity side of the multilateral air inlet chamber 61 through the obtuse-angle guide page 64 is blocked by the obtuse-angle guide page 64 and returns to the position of the air inlet port 62, and finally flows again to the narrow diameter space formed between the air supply outer ring sleeve 41 and the heating furnace body 3 through the air inlet port 62, instead of being directly guided to the outside, so that the middle position of the heating furnace body 3 is kept stable by the residual heat of the returning heat source airflow, and the temperature does not drop sharply, thereby ensuring the smoothness of the preheating transition of the heating furnace body 3 and the multilateral air inlet chamber 61 during continuous heating and temperature increase, so that the subsequent potassium sulfate can quickly reach the reaction temperature after being fed into the inner side of the heating furnace body 3.

[0024] In an optional implementation of the present embodiment, the intermediate heating source supply mechanism 4 includes an air supply outer ring sleeve 41 and an air source isolation page 42. The air supply outer ring sleeve 41 is fixedly connected to the outside of the heating furnace body 3. The air source isolation page 42 is fixedly connected between the heating furnace body 3 and the air supply outer ring sleeve 41. The air source isolation page 42 is used to isolate an independent cavity between the air supply outer ring sleeve 41 and the heating furnace body 3.

[0025] In this embodiment, the cavity between the air supply outer ring sleeve 41 and the heating furnace body 3 is flat, so that the heat source input by the heating cavity conducting pipe 53 and the heat source delivery pipe 54 can be compressed by the cavity and pressurized and discharged through the air intake solenoid valve 65, thereby increasing the conduction speed of the air intake solenoid valve 65 when inputting the heat source to the inner side of the multilateral air intake chamber 61, so that the heat source can be quickly filled into the inner side of the multilateral air intake chamber 61. At the same time, after the air supply outer ring sleeve 41 is isolated by the air source isolation page 42, an independent space for heat source retention is formed between the air supply outer ring sleeve 41 and the heating furnace body 3, which can be used to intercept part of the heat source for insulation.

[0026] In an optional implementation of the present embodiment, the electromagnetic heating source supply assembly 5 includes an electromagnetic heat source delivery pipe 51, an inner cavity conducting pipe 52 and a heating cavity conducting pipe 53, the input end of the electromagnetic heat source delivery pipe 51 is connected to the external gas electromagnetic heating mechanism, the output end of the electromagnetic heat source delivery pipe 51 is connected to the inner cavity of the heating furnace body 3 through the inner cavity conducting pipe 52, the input end of the heating cavity conducting pipe 53 is fixedly connected to the heating source delivery pipe 54, the input end of the heating source delivery pipe 54 is connected to the external gas electromagnetic heating mechanism, and the output end of the heating cavity conducting pipe 53 is fixedly connected to the gas supply outer ring sleeve 41.

[0027] In this embodiment, the external electromagnetic air heater heats the air and then inputs it through the connecting heat source delivery pipe 54 and the electromagnetic heat source delivery pipe 51, wherein the electromagnetic heat source delivery pipe 51 is connected to the inner cavity heating space of the heating furnace body 3 through the inner cavity conducting pipe 52, and the heat source delivery pipe 54 is connected to the air supply outer ring sleeve 41 through the heating cavity conducting pipe 53 to guide it to the inner side of the multilateral air inlet chamber 61.

[0028] In an optional implementation of the present embodiment, the air intake solenoid valve 65 is fixedly connected to the air supply outer ring sleeve 41, and the air intake solenoid valve 65 is symmetrically distributed with the air inlet port 62, the output end of the leakage exhaust valve 66 passes through the air supply outer ring sleeve 41 and extends to the outside of the air supply outer ring sleeve 41, and one end of the leakage exhaust valve 66 located on the inner side of the multilateral air intake chamber 61 is fixedly connected to a temperature controller 661.

[0029] In this embodiment, during the heating operation state, the temperature sensing controller 661 senses whether the temperature inside the multilateral air inlet chamber 61 reaches the rated value. After reaching the rated value, the heat source delivery pipe 54 and the heat cavity conducting pipe 53 are stopped from continuing to deliver the heat source to the inside of the air supply outer ring sleeve 41. Thereafter, the temperature sensing controller 661 keeps monitoring the temperature inside the multilateral air inlet chamber 61. When the temperature of the heat source inside the multilateral air inlet chamber 61 drops to the rated value and is insufficient to provide a heat preservation effect, the temperature sensing controller 661 sends an opening signal to the leakage exhaust valve 66, and the valve port of the leakage exhaust valve 66 is opened to allow the heat source inside the multilateral air inlet chamber 61 to be unidirectionally discharged to the outside after the temperature is reduced. At the same time, the heat source delivery pipe 54 is reconnected with the external electromagnetic air heater and the heat source is re-input into the air supply outer ring sleeve 41, so that the heat source re-enters the inside of the multilateral air inlet chamber 61, and the heating source can be replaced and input.

[0030] In an optional implementation of the present embodiment, the heating furnace body 3 is provided with an inner cavity exhaust valve 31, a material transfer bucket 32 ​​and a lid closing push mechanism 33, the inner cavity exhaust valve 31 is fixedly connected to the heating furnace body 3, the lid closing push mechanism 33 is installed at the feed end of the heating furnace body 3, and the material transfer bucket 32 ​​is fixedly connected to the transmission seat of the lid closing push mechanism 33.

[0031] In an optional implementation of this embodiment, a loading shovel arm 11 is provided between the input conveyor belt 1 and the feeding end of the heating furnace body 3 , and a unloading shovel arm 21 is provided between the output conveyor belt 2 and the discharging end of the heating furnace body 3 .

[0032] In this embodiment, after the potassium sulfate raw material is sent to the material transfer bucket 32 ​​through the input conveyor belt 1, the loading shovel arm 11 shovels the potassium sulfate raw material to the inside of the material transfer bucket 32, and the material transfer bucket 32 ​​is driven by the cover-closing pushing mechanism 33 to close the input end of the heating furnace body 3, and the potassium sulfate raw material is sent to the inside of the heating furnace body 3. After the potassium sulfate raw material is processed, the output end cover of the heating furnace body 3 is opened, and the processed material located inside the material transfer bucket 32 ​​is sent to the upper end of the output conveyor belt 2 through the unloading shovel arm 21, and output to the next processing link through the output conveyor belt 2. Among them, the cover-closing pushing mechanism 33 is a hydraulic cylinder.

[0033] The working principle of the present invention is as follows: first, the potassium sulfate raw material is fed to the material transfer bucket 32 ​​through the input conveyor belt 1, and then the potassium sulfate raw material is shoveled to the inside of the material transfer bucket 32 ​​by the loading shovel arm 11, and the material transfer bucket 32 ​​is driven by the cover pushing mechanism 33 to close the input end of the heating furnace body 3, and then the external electromagnetic air heater is started to heat the air, and the heat source is transmitted to the heating cavity in the heating furnace body 3 through the electromagnetic heat source transmission pipe 51 and the inner cavity conduction pipe 52, and the potassium sulfate raw material inside the heating furnace body 3 is heated. At the same time, the heat source transmission pipe 54 and the heat cavity conduction pipe 53 are used to heat the potassium sulfate raw material inside the heating furnace body 3. The heat source is then transferred to the inner side of the air supply outer ring sleeve 41. After the heat source is input into the air supply outer ring sleeve 41, it is pressurized by the air intake solenoid valve 65 and output to the air intake port 62. Finally, the heat source is input to the inner side of the multilateral air intake chamber 61 through the air intake port 62. At this time, the heat source is preferentially conducted to the thin-walled joint heat conductive sheet 63 to assist the temperature conduction of the thin-walled surface 301 for heat conduction. Then, the obtuse-angled guide leaf 64 guides the heat source to the inner side of the multilateral air intake chamber 61. The multilateral air intake chamber 61 and the thin-walled joint heat conductive sheet 63 assist in temperature conduction of the heating furnace body 3, thereby increasing the heating reaction rate of potassium sulfate located in the middle of the heating furnace body 3. During the heating operation state, the temperature sensing controller 661 is used to sense whether the temperature inside the multilateral air inlet chamber 61 has reached the rated value. After reaching the rated value, the heat source is stopped from being continuously transported to the inside of the air supply outer ring sleeve 41. After the temperature of the heat source inside the multilateral air inlet chamber 61 drops to the rated value, the temperature sensing controller 661 sends an opening signal to the leakage exhaust valve 66, so that the leakage exhaust valve 66 opens the valve port to allow the heat source with the lowered temperature inside the multilateral air inlet chamber 61 to be unidirectionally discharged to the outside. At this time, the heat source delivery pipe 54 and the external electromagnetic air heater are reconnected, and the heat source is re-input into the air supply outer ring sleeve 41 through the external electromagnetic air heater, so that the heat source re-enters the inside of the multilateral air inlet chamber 61 to replace the input of the heating source. After the heating is completed and the machine is shut down, the inner cavity exhaust valve 31 and the discharge exhaust valve 66 are opened to discharge the heat source, and then the output end cover of the heating furnace body 3 is opened, and the processed material located inside the material transfer bucket 32 ​​is sent to the upper end of the output conveyor belt 2 through the unloading shovel arm 21, and output to the next processing link.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent electric heating system for producing potassium sulfate by the Mannheim process, comprising an input conveyor belt (1), an output conveyor belt (2) and a heating furnace body (3), characterized in that: An intermediate heat source supply mechanism (4) and an electromagnetic heating source supply assembly (5) are arranged on the outside of the heating furnace body (3); the intermediate heat source supply mechanism (4) is arranged around the outside of the heating furnace body (3); the intermediate heat source supply mechanism (4) is used to form a heat source at the middle position of the heating furnace body (3); the electromagnetic heating source supply assembly (5) is used to introduce heating gas into the heating furnace body (3) in sections through the intermediate heat source supply mechanism (4) and the electromagnetic heating source supply assembly (5); an intermediate heat source storage assembly (6) is arranged on the inside of the heating furnace body (3); the intermediate heat source storage assembly (6) is in conduction with the intermediate heat source supply mechanism (4); The intermediate heat source storage component (6) comprises a multilateral air inlet chamber (61), an air inlet opening (62), a thin-walled joint heat conductive sheet (63), an obtuse-angle guide leaf (64), an air inlet solenoid valve (65) and a discharge and exhaust valve (66). The heating furnace body (3) is provided with the multilateral air inlet chamber (61) at a position adjacent to the intermediate heat source supply mechanism (4). The number of the multilateral air inlet chambers (61) is at least four. The air inlet opening (62) is opened at one end of the multilateral air inlet chamber (61). The thin-walled joint heat conductive sheet (63) is fixedly connected to the inner wall of the multilateral air inlet chamber (61). The air inlet opening (62) and the intermediate heat source supply mechanism (4) are connected to the intermediate heat source supply mechanism (4). The thin-walled joint heat conducting plates (63) are symmetrically distributed, the obtuse-angle guide leaf (64) is fixedly connected to the inner side of the polygonal air inlet chamber (61), the air inlet solenoid valve (65) is arranged on the inner side of the intermediate heat source supply mechanism (4), the leakage exhaust valve (66) is fixedly connected between the intermediate heat source supply mechanism (4) and the polygonal air inlet chamber (61), the air inlet solenoid valve (65) is used to introduce the heat source into the inner side of the heating furnace body (3) and the intermediate heat source supply mechanism (4), and the leakage exhaust valve (66) is used to guide the heat source after the temperature drops to the outer side of the intermediate heat source supply mechanism (4).

2. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 1, characterized in that: The heating furnace body (3) is provided with a thermally conductive thin wall surface (301), and the thin-walled joint heat conductive sheet (63) is arranged on a side wall of the polygonal air inlet chamber (61) close to the thermally conductive thin wall surface (301).

3. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 1, characterized in that: The intermediate heat source supply mechanism (4) comprises an air supply outer ring sleeve (41) and an air source isolation page (42); the air supply outer ring sleeve (41) is fixedly connected to the outside of the heating furnace body (3); the air source isolation page (42) is fixedly connected between the heating furnace body (3) and the air supply outer ring sleeve (41); the air source isolation page (42) is used to isolate an independent cavity between the air supply outer ring sleeve (41) and the heating furnace body (3).

4. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 3, characterized in that: The electromagnetic heating source supply assembly (5) comprises an electromagnetic heat source delivery pipe (51), an inner cavity conducting pipe (52) and a heating cavity conducting pipe (53); the input end of the electromagnetic heat source delivery pipe (51) is connected to an external gas electromagnetic heating mechanism; the output end of the electromagnetic heat source delivery pipe (51) is connected to the inner cavity of the heating furnace body (3) through the inner cavity conducting pipe (52); the input end of the heating cavity conducting pipe (53) is fixedly connected to a heating source delivery pipe (54); the input end of the heating source delivery pipe (54) is connected to the external gas electromagnetic heating mechanism; the output end of the heating cavity conducting pipe (53) is fixedly connected to the gas supply outer ring sleeve (41).

5. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 4, characterized in that: The air intake solenoid valve (65) is fixedly connected to the air supply outer ring sleeve (41), and the air intake solenoid valve (65) is symmetrically distributed with the air inlet opening (62). The output end of the leakage and exhaust valve (66) passes through the air supply outer ring sleeve (41) and extends to the outside of the air supply outer ring sleeve (41). One end of the leakage and exhaust valve (66) located on the inner side of the multilateral air intake chamber (61) is fixedly connected to a temperature sensing controller (661).

6. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 1, characterized in that: The heating furnace body (3) is provided with an inner cavity exhaust valve (31), a material transmission bucket (32) and a cover closing push mechanism (33); the inner cavity exhaust valve (31) is fixedly connected to the heating furnace body (3); the cover closing push mechanism (33) is installed at the feeding end of the heating furnace body (3); and the material transmission bucket (32) is fixedly connected to a transmission seat of the cover closing push mechanism (33).

7. The intelligent electric heating system for preparing potassium sulfate by the Mannheim process according to claim 1, characterized in that: A loading shovel arm (11) is provided between the input conveyor belt (1) and the feeding end of the heating furnace body (3), and a unloading shovel arm (21) is provided between the output conveyor belt (2) and the discharging end of the heating furnace body (3).

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