Electromagnetic heating coal moisture control energy storage system
Through electromagnetic heating technology and the coal humidity regulation system with reverse heat exchange, the problems of complexity and high energy consumption of existing coal humidity regulation process equipment are solved, efficient and accurate coal dust humidity control is achieved, and coke quality and coke furnace are improved. Operational stability.
Patent Information
- Application Number
- CN202420724054.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing coal humidity regulation process equipment has high investment, high energy consumption, complex operation and difficult to accurately control the humidity of coal powder, especially for coal powder with high moisture and high viscosity.
The electromagnetic heating technology is used to combine coupled conveying, quantitative feeding and waste heat utilization, and the coking coal is heated and adjusted quickly and evenly through the electromagnetic heating device, and the reverse heat exchange between hot gas and coal is realized through the preheating device, improving energy utilization and humidity control Accuracy.
It has achieved an efficient, energy-saving and environmentally friendly coal humidity regulation process, with thermal efficiency reaching more than 95%, accurate humidity control and good stability, reducing equipment complexity and operating costs, and improving coke quality and coke oven operation stability.
Smart Images
Figure CN222131562U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgical production, and in particular to an electromagnetic heating coal moisture regulating energy storage system. Background Art
[0002] The moisture content of coal after washing is high. At present, most of the coking coal used by coking enterprises at home and abroad is directly loaded into the coke oven after being transported and blended from the coal yard to the coal type ratio, resulting in a high humidity of the added coal, generally 10% to 14%. After the high-moisture content coal enters the coke oven, the vaporization of the moisture consumes a lot of energy, resulting in a waste of heat energy, and also has an adverse effect on the quality of coke. Therefore, it is necessary to dry and adjust the humidity of the wet coal before entering the furnace.
[0003] The basic principle of coal moisture control technology is to use external heat energy to dry and dehydrate coking coal before it enters the coke oven to reduce the moisture content of the coal or adjust the moisture content of the coal to control the energy consumption of coking, improve the operation of the coke oven, improve the quality of coke or expand the use of caking coal. Coal moisture control technology is a key energy-saving and environmental protection project encouraged by the state. Traditional coal moisture control processes mainly use steam, hot exhaust gas, coal gas and other fuel combustion to provide heat sources for heating and moisture control of coking coal. These systems have complex processes, high equipment investment, large floor space, and difficult operation and maintenance. In addition, they require high energy consumption and low operating rate. At the same time, they also need to be equipped with large-scale environmental protection dust removal systems, which further consume energy. Patent document CN105505424A discloses a process for adjusting the humidity of coal powder by microwave preheating. Compared with the traditional coal humidity adjustment process, microwave heating is from electrical energy → microwave energy → thermal energy, and has the advantages of heating and drying from the inside to the outside, fast humidity adjustment speed, high efficiency and good uniformity. However, due to the energy conversion, the efficiency of microwave heating needs to be improved, and the control system is relatively complex and the operating cost is high. In particular, it has poor adaptability to coal powder with high moisture content and high viscosity, and it is difficult to accurately control the humidity of the coal powder. Utility Model Content
[0004] In view of the deficiencies of the prior art, the problem to be solved by the utility model is how to improve the efficiency and accuracy of the coal moisture adjustment process.
[0005] To achieve the above-mentioned purpose, the utility model provides an electromagnetic heating coal moisture control and energy storage system, comprising a raw material storage device, a feed conveying device, a quantitative feeding device, a preheating device, an electromagnetic heating device and a discharge conveying device, wherein the raw material storage device is used to store coking coal raw materials, the feed conveying device is used to convey the coking coal raw materials to the quantitative feeding device, the quantitative feeding device is used to control the amount of coking coal raw materials entering the preheating device, the preheating device is used to preheat the coking coal raw materials with the hot gas generated by the electromagnetic heating device, the electromagnetic heating device is used to heat and moisture the preheated coking coal, and send the generated hot gas into the preheating device, and the discharge conveying device is used to convey the moisture-adjusted coking coal to the coke oven.
[0006] The coal moisture control and energy storage system of the utility model mainly adopts electromagnetic heating technology, coupled transportation, quantitative feeding, and waste heat utilization technology, which can reduce the moisture content of coking coal. It has the advantages of fast heating speed, uniform heating, and high heating efficiency. The accuracy and stability of moisture content control are good, and the energy utilization rate is high. The efficiency of converting electrical energy into thermal energy can reach more than 95%.
[0007] Furthermore, the electromagnetic heating device includes a heating shell, a heating spiral blade, a heating blade driving motor, an electromagnetic coil and an electromagnetic heating body. A space for heating coke is formed in the heating shell. The heating spiral blade is arranged in the heating shell. The heating blade driving motor is used to control the rotation of the heating spiral blade. The heating shell is arranged on the electromagnetic heating body. An arc-shaped groove matching the shape of the heating shell is provided on the top of the electromagnetic heating body, and the electromagnetic coil is laid in the arc-shaped groove.
[0008] Furthermore, the electromagnetic heating device includes a heating roller, a heating roller drive motor, an electromagnetic coil and an electromagnetic heating body. The heating roller drive motor is connected to the heating roller drive and is used to control the rotation of the heating roller. A space for heating coke is formed inside the heating roller. The heating roller is arranged on the electromagnetic heating body. An arc-shaped groove matching the heating roller is provided on the top of the electromagnetic heating body, and the electromagnetic coil is laid in the arc-shaped groove.
[0009] The electromagnetic heating device adopts spiral heating and humidity control or drum heating and humidity control, which has the advantages of uniform heating and high heating efficiency. The electromagnetic heating body is arranged at the bottom of the heating space to transfer heat from the bottom of the material, so that the heat transfer speed is accelerated, the energy consumption is fully utilized, and the work efficiency is improved.
[0010] Furthermore, the preheating device includes a preheating shell, a preheating spiral blade and a preheating blade drive motor, a space for preheating coke is formed in the preheating shell, the preheating spiral blade is arranged in the preheating shell, and the preheating blade drive motor is used to control the rotation of the preheating spiral blade.
[0011] Furthermore, the preheating device includes a preheating drum and a preheating drum driving motor, wherein the preheating drum driving motor is drivingly connected to the preheating drum and is used to control the rotation of the preheating drum, and a space for preheating coke is formed inside the preheating drum.
[0012] The preheating device adopts spiral preheating or drum preheating, which can achieve material mixing and uniform heating, which is beneficial to improving heat transfer efficiency.
[0013] Furthermore, the preheating device and the electromagnetic heating device are connected via a transition hopper. The hot air flow generated by the electromagnetic heating device during heating and humidity adjustment enters the preheating device through the transition hopper, and the hot air flow and the coking coal travel in the opposite direction, and the two are in direct contact for heat exchange, thereby achieving coking coal preheating and improving energy utilization.
[0014] Furthermore, the electromagnetic heating coal moisture control energy storage system also includes a vacuum device and a steam-water separation device, wherein the inlet end of the vacuum device is connected to the preheating device, and the outlet end is connected to the steam-water separation device. The low-temperature gas after preheating the coke is extracted through the vacuum device and enters the steam-water separation device, and the separated gas is discharged, and the collected liquid water can be recycled.
[0015] Furthermore, the raw material storage device includes a plurality of raw material bins, each of which is used to store different types of coking coal. Storing a plurality of types of coking coal in different raw material bins is convenient for batching.
[0016] Furthermore, the feed conveying device includes a coal blending belt and a feed coal conveying belt, the discharge port of each raw material bin is located above the coal blending belt, and the feed coal conveying belt is used to convey the coking coal raw material configured on the coal blending belt to the quantitative feeding device. A variety of raw materials are laid out on the coal blending belt in sequence to complete the raw material configuration, and then sent to the subsequent process through the feed coal conveying belt, which can ensure that the raw material ratio meets the process requirements.
[0017] Furthermore, the electromagnetic heating coal moisture control energy storage system also includes a material distribution device and a transition storage device, wherein the material distribution device is used to distribute the moisture-controlled coking coal to the transition storage device or the discharging conveying device. The material distribution device and the transition storage device can be set up to temporarily store the moisture-controlled raw materials and transport them to the coke oven at any time according to process requirements.
[0018] In summary, the present invention has the following beneficial effects compared with the prior art:
[0019] (1) The utility model adopts electromagnetic heating technology to adjust the humidity of coal, making full use of the principle of electromagnetic induction heating to efficiently heat the wet coal, with a thermal efficiency of more than 95%. It also has the advantages of high heat transfer efficiency, low energy consumption, accurate humidity control, good stability, etc. Compared with the existing steam and waste heat drying, it embodies many advantages such as high efficiency, energy saving, environmental protection, and safety. The operating cost is relatively low and the economic benefits are obvious.
[0020] (2) The equipment required for the coal moisture conditioning and energy storage system of the utility model is simple and easy to maintain, and it occupies a small area and has low operating costs. It can be flexibly arranged according to the total area, such as up and down arrangement, left and right arrangement, or front and back arrangement. The coking coal after moisture conditioning can effectively improve the quality of coke and the stability of coke oven operation, and can produce obvious economic benefits.
[0021] (3) The coal humidity control and energy storage system of the utility model couples mixed transportation, electromagnetic heating humidity control, waste heat secondary utilization, low-temperature steam collection and other technologies, which reduces the control difficulty of the heating and humidity control process, improves the accuracy of humidity control, and keeps the power consumption at a low level, with good stability, economy and safety.
[0022] (4) The coal moisture control and energy storage system of the utility model can be operated intermittently. Under the peak-valley electricity price mechanism, valley electricity heat storage can be used to convert electrical energy into thermal energy and transfer it to wet coal, so that moisture-controlled coking coal can be supplied during peak electricity periods, achieving the purpose of staggered electricity consumption and time-sharing energy storage, thereby reducing the cost of coking. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a process flow chart of the electromagnetic heating coal moisture control energy storage system in the embodiment of the utility model.
[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the electromagnetic heating device in the embodiment of the utility model.
[0025] Figure 3 This is a process flow chart of an electromagnetic heating coal moisture control energy storage system in another embodiment of the utility model.
[0026] Figure 4 It is a schematic cross-sectional structure diagram of an electromagnetic heating device in another embodiment of the utility model.
[0027] Figure 5 This is a process flow chart of an electromagnetic heating coal moisture control energy storage system in another embodiment of the utility model
[0028] Description of reference numerals:
[0029] 1-unloading belt, 2-raw material bin, 31-coal distribution belt, 32-feeding coal conveyor belt, 4-quantitative feeding device, 5-preheating device, 51-transition hopper, 52-preheating shell, 53-preheating spiral blade, 54-preheating blade drive motor, 55-preheating roller, 56-preheating roller drive motor, 6-electromagnetic heating device, 61-electromagnetic coil, 62-electromagnetic heating body, 63-heating shell, 64-heating spiral blade, 65-heating blade drive motor, 66-heating roller, 67-heating roller drive motor, 7-material dividing device, 81-mobile unloader, 82-transition storage bin, 9-discharging conveying device, 10-vacuum device, 11-steam-water separation device, 12-gas discharge cylinder, 13-water tank. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. It should be noted that similar marks and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0032] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] Combination Figure 1 and Figure 2As shown, this embodiment provides an electromagnetic heating coal moisture control energy storage system, including a raw material storage device, a feed conveying device, a quantitative feeding device 4, a preheating device 5, an electromagnetic heating device 6, a material dividing device 7, a transition storage device, a discharge conveying device 9, a vacuum device 10, a steam-water separation device 11, a gas discharge cylinder 12, a water tank 13 and other equipment. The raw material storage device is used to store coking coal raw materials. In this embodiment, the raw material storage device includes a plurality of raw material bins 2, and different types of coking coal are transported to each raw material bin 2 for storage by a discharge belt 1. The feed conveying device is used to transport the coking coal raw materials to the quantitative feeding device 4. In this embodiment, the feed conveying device includes a coal blending belt 31 and a feed coal conveying belt 32. The discharge port of each raw material bin 2 is located above the coal blending belt 31. A variety of raw materials are sequentially laid on the coal blending belt 31 to complete the raw material configuration, and then sent to the subsequent process through the feed coal conveying belt 32. The quantitative feeding device 4 is used to control the amount of coking coal raw materials entering the preheating device 5. In a specific embodiment, a screw conveying metering or other metering methods are used. The preheating device 5 is used to preheat the coking coal raw material, and its heating source is the hot gas generated by the electromagnetic heating device 6. The vacuum device 10 is used to extract the low-temperature gas after the preheated coking coal, which is separated by the steam-water separation device 11. The separated gas is discharged through the gas discharge cylinder 12, and the liquid water is collected by the water tank 13. The electromagnetic heating device 6 adopts electromagnetic heating technology to heat and humidify the preheated coking coal, and send the generated hot gas to the preheating device 5. The material distribution device 7 is used to distribute the humidified coking coal, part of which is distributed to the transition storage device for temporary storage, and the other part is distributed to the discharge conveying device 9, which transports the humidified coking coal to the coke oven. In this embodiment, the transition storage device includes a mobile discharger 81 and multiple transition storage silos 82. The mobile discharger 81 can deliver the humidified coking coal into each transition storage silo 82; the discharge conveyor 9 is a conveyor belt, and the discharge port of the transition storage silo 82 is located above the discharge conveyor 9. The coking coal with low moisture content can be delivered to the coke oven according to the production process requirements, reducing the amount of wastewater treatment in the coke oven and improving the production capacity of the coke oven and the quality of coke. The system integrates quantitative feeding, electromagnetic heating, waste heat utilization, and material storage functions, and has the advantages of fast heating speed, uniform heating, and high heating efficiency. It can accurately control the moisture content of the coking coal, and has good process stability and high energy utilization.
[0034] In this embodiment, the preheating device 5 adopts a spiral preheating form, which includes a preheating shell 52, a preheating spiral blade 53 and a preheating blade driving motor 54. The preheating shell 52 has a space for preheating coke. The preheating spiral blade 53 is arranged in the preheating shell 52 for stirring and conveying coke. The preheating blade driving motor 54 is used to control the rotation of the preheating spiral blade 53. Multiple cokes are mixed and heated uniformly in the preheating shell 52. The electromagnetic heating device 6 adopts a spiral heating and humidity control form, which includes a heating shell 63, a heating spiral blade 64, a heating blade driving motor 65, an electromagnetic coil 61 and an electromagnetic heating body 62. A space for coke heating is formed in the heating shell 63. The heating spiral blade 64 is arranged in the heating shell 63. The heating blade driving motor 65 is used to control the rotation of the heating spiral blade 64. The heating shell 63 is arranged on the electromagnetic heating body 62. The top of the electromagnetic heating body 62 is provided with an arc groove matching the shape of the heating shell 63. The electromagnetic coil 61 is laid in the arc groove. A single or multiple sets of coils can be used for heating. The electromagnetic heating body 62 is arranged at the bottom of the heating space, and transfers heat from the bottom of the material, so that the heat transfer speed is accelerated, the energy consumption is fully utilized, and the working efficiency is improved. The preheating shell 52 and the heating shell 63 are connected through the transition hopper 51. The hot air flow generated by the electromagnetic heating device 6 when working enters the preheating device 5 through the transition hopper 51. The hot air flow and the coking coal move in the opposite direction, and the two are in direct contact for heat exchange to achieve the preheating of the coking coal. Preferably, the preheating shell 52 and the heating shell 63 are both provided with an insulation layer on the outside to reduce heat loss.
[0035] The specific working process of the electromagnetic heating coal moisture control energy storage system is as follows:
[0036] Various types of coking coal are loaded into different raw material bins 2 through a discharge belt 1; the coking coal in each raw material bin 2 is discharged in proportion, spread on a coal blending belt 31, and then sent to a quantitative feeding device 4 through a feed coal conveyor belt 32; the quantitative feeding device 4 quantitatively feeds the coking coal into a preheating device 5; the preheating device 5 uses the hot air generated by an electromagnetic heating device 6 as a heating source to preheat the coking coal; the preheated low-temperature gas is extracted through a vacuum device 10 and enters a steam-water separation device 11, the separated gas is discharged from a gas discharge tube 12, and the collected liquid water enters a water tank 13; the preheating The conditioned coking coal enters the electromagnetic heating device 6 through the transition hopper 51, and is heated and humidified according to the set moisture content. The conditioned coking coal is tested, compared, calculated and analyzed with the test data of the raw coking coal, and the power and heating temperature of the electromagnetic heating device 6 are automatically controlled to control the moisture content of the coking coal within the set range, generally 6.5% to 7%; the conditioned coking coal enters the material distribution device 7, part of the coking coal is distributed to the transition storage device for temporary storage, and the other part is distributed to the discharge conveying device 9, which transports the conditioned coking coal to the coke oven.
[0037] The electromagnetic heating coal humidity control and energy storage system can adopt the intermittent working mode of peak and valley electricity. During the valley electricity period, the coking coal is humidified and temporarily stored in the transition storage device; during the peak electricity period, the feeding conveying device, the preheating device 5 and the electromagnetic heating device 6 stop working, and the discharging conveying device 9 delivers the low-moisture coking coal stored in the transition storage device to the coke oven. When production is abnormal and urgently needs to feed, the feeding conveying device, the preheating device 5 and the electromagnetic heating device 6 are started to carry out continuous heating and humidity control operations, and the material distribution device 7 distributes the coking coal to the discharging conveying device 9 to continuously feed the coke oven. The above working mode uses the technology of peak and valley electricity energy storage to heat and humidify the coking coal during low-valley electricity, and supply the coking coal stored after humidity control to the coke oven during peak electricity, so as to achieve the effects of staggered electricity consumption, time-sharing energy storage, energy saving and consumption reduction, which can greatly reduce the production and operation costs, and the economic and environmental benefits are obvious.
[0038] Combination Figure 3 and Figure 4 As shown, this embodiment provides another electromagnetic heating coal humidity control energy storage system, which is different from the above embodiment in that the electromagnetic heating device 6 adopts a drum heating humidity control form. Specifically, the electromagnetic heating device 6 includes a heating drum 66, a heating drum drive motor 67, an electromagnetic coil 61 and an electromagnetic heating body 62. The heating drum 66 has a space for accommodating coke. The heating drum drive motor 67 is connected to the heating drum 66 for driving and controlling the rotation of the heating drum 66. The heating drum 66 is arranged on the electromagnetic heating body 62. The top of the electromagnetic heating body 62 is provided with an arc-shaped groove matching the heating drum 66. The electromagnetic coil 61 is laid in the arc-shaped groove, and a single or multiple sets of coils can be used for heating. The electromagnetic heating body 62 is arranged at the bottom of the heating space to transfer heat from the bottom of the material. The heat transfer speed is fast and the energy utilization rate is high.
[0039] Combination Figure 5 As shown, this embodiment provides another electromagnetic heating coal moisture control energy storage system, which is different from the above embodiment in that the preheating device 5 adopts a drum preheating form. Specifically, the preheating device 5 includes a preheating drum 55 and a preheating drum drive motor 56. The preheating drum 55 has a space for accommodating coking coal. The preheating drum drive motor 56 is connected to the preheating drum 55 for driving and controlling the rotation of the preheating drum 55. The coking coal can be mixed and heated uniformly in the preheating drum 55, with high heat transfer efficiency and good preheating effect.
[0040] In addition, the electromagnetic heating coal moisture control and energy storage system of this embodiment is not provided with a material distribution device 7 and a transition storage device. The coking coal is directly sent to the discharge conveying device 9 after being humidified by the electromagnetic heating device 6, and then sent to the subsequent process through the feed conveying device.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. An electromagnetic heating coal moisture control energy storage system, characterized in that: The invention comprises a raw material storage device, a feed conveying device, a quantitative feeding device (4), a preheating device (5), an electromagnetic heating device (6) and a discharge conveying device (9), wherein the raw material storage device is used to store coking coal raw materials, the feed conveying device is used to convey the coking coal raw materials to the quantitative feeding device (4), the quantitative feeding device (4) is used to control the amount of coking coal raw materials entering the preheating device (5), the preheating device (5) is used to preheat the coking coal raw materials with hot air generated by the electromagnetic heating device (6), the electromagnetic heating device (6) is used to heat and humidify the preheated coking coal, and send the generated hot air into the preheating device (5), and the discharge conveying device (9) is used to convey the humidified coking coal to the coke oven.
2. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The electromagnetic heating device (6) comprises a heating shell (63), a heating spiral blade (64), a heating blade driving motor (65), an electromagnetic coil (61) and an electromagnetic heating body (62); a space for heating coke is formed in the heating shell (63); the heating spiral blade (64) is arranged in the heating shell (63); the heating blade driving motor (65) is used to control the rotation of the heating spiral blade (64); the heating shell (63) is arranged on the electromagnetic heating body (62); an arc-shaped groove matching the shape of the heating shell (63) is provided on the top of the electromagnetic heating body (62); and the electromagnetic coil (61) is laid in the arc-shaped groove.
3. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The electromagnetic heating device (6) comprises a heating roller (66), a heating roller (66) driving motor, an electromagnetic coil (61) and an electromagnetic heating body (62); the heating roller (66) driving motor is connected to the heating roller (66) for driving and controlling the rotation of the heating roller (66); a space for heating coke is formed inside the heating roller (66); the heating roller (66) is arranged on the electromagnetic heating body (62); an arc-shaped groove matching the heating roller (66) is provided on the top of the electromagnetic heating body (62); and the electromagnetic coil (61) is laid in the arc-shaped groove.
4. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The preheating device (5) comprises a preheating shell (52), a preheating spiral blade (53) and a preheating blade driving motor (54); a space for preheating coke is formed in the preheating shell (52); the preheating spiral blade (53) is arranged in the preheating shell (52); and the preheating blade driving motor (54) is used to control the rotation of the preheating spiral blade (53).
5. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The preheating device (5) comprises a preheating drum (55) and a preheating drum (55) driving motor. The preheating drum (55) driving motor is drivingly connected to the preheating drum (55) and is used to control the rotation of the preheating drum (55). A space for preheating coke is formed inside the preheating drum (55).
6. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The preheating device (5) and the electromagnetic heating device (6) are connected via a transition hopper (51).
7. The electromagnetic heating coal moisture control energy storage system according to claim 6 is characterized in that: It also comprises a vacuum device (10) and a steam-water separation device (11), wherein the inlet end of the vacuum device (10) is connected to the preheating device (5), and the outlet end is connected to the steam-water separation device (11).
8. The electromagnetic heating coal moisture control energy storage system according to claim 1 is characterized in that: The raw material storage device comprises a plurality of raw material bins (2), each of the raw material bins (2) being used to store different types of coking coal.
9. The electromagnetic heating coal moisture control energy storage system according to claim 8, characterized in that: The feed conveying device comprises a coal blending belt (31) and a feed coal conveying belt (32), the discharge port of each raw material bin (2) is located above the coal blending belt (31), and the feed coal conveying belt (32) is used to convey the coking coal raw material arranged on the coal blending belt (31) to the quantitative feeding device (4).
10. The electromagnetic heating coal moisture control energy storage system according to any one of claims 1 to 9, characterized in that: It also includes a material distribution device (7) and a transition storage device, wherein the material distribution device (7) is used to distribute the moisture-adjusted coking coal to the transition storage device or the discharge conveying device (9).